Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
CW1200 WLAN driver
M: Solomon Peachy <pizza@shaftnet.org>
S: Maintained
-F: drivers/net/wireless/cw1200/
+F: drivers/net/wireless/st/cw1200/
CX18 VIDEO4LINUX DRIVER
M: Andy Walls <awalls@md.metrocast.net>
source "drivers/net/wireless/atmel/Kconfig"
source "drivers/net/wireless/broadcom/Kconfig"
source "drivers/net/wireless/cisco/Kconfig"
+source "drivers/net/wireless/st/Kconfig"
config PCMCIA_RAYCS
tristate "Aviator/Raytheon 2.4GHz wireless support"
source "drivers/net/wireless/ti/Kconfig"
source "drivers/net/wireless/zd1211rw/Kconfig"
source "drivers/net/wireless/mwifiex/Kconfig"
-source "drivers/net/wireless/cw1200/Kconfig"
source "drivers/net/wireless/rsi/Kconfig"
endif # WLAN
obj-$(CONFIG_WLAN_VENDOR_ATMEL) += atmel/
obj-$(CONFIG_WLAN_VENDOR_BROADCOM) += broadcom/
obj-$(CONFIG_WLAN_VENDOR_CISCO) += cisco/
+obj-$(CONFIG_WLAN_VENDOR_ST) += st/
obj-$(CONFIG_IPW2100) += ipw2x00/
obj-$(CONFIG_IPW2200) += ipw2x00/
obj-$(CONFIG_MWIFIEX) += mwifiex/
-obj-$(CONFIG_CW1200) += cw1200/
obj-$(CONFIG_RSI_91X) += rsi/
+++ /dev/null
-config CW1200
- tristate "CW1200 WLAN support"
- depends on MAC80211 && CFG80211
- help
- This is a driver for the ST-E CW1100 & CW1200 WLAN chipsets.
- This option just enables the driver core, see below for
- specific bus support.
-
-if CW1200
-
-config CW1200_WLAN_SDIO
- tristate "Support SDIO platforms"
- depends on CW1200 && MMC
- help
- Enable support for the CW1200 connected via an SDIO bus.
- By default this driver only supports the Sagrad SG901-1091/1098 EVK
- and similar designs that utilize a hardware reset circuit. To
- support different CW1200 SDIO designs you will need to override
- the default platform data by calling cw1200_sdio_set_platform_data()
- in your board setup file.
-
-config CW1200_WLAN_SPI
- tristate "Support SPI platforms"
- depends on CW1200 && SPI
- help
- Enables support for the CW1200 connected via a SPI bus. You will
- need to add appropriate platform data glue in your board setup
- file.
-
-endif
+++ /dev/null
-cw1200_core-y := \
- fwio.o \
- txrx.o \
- main.o \
- queue.o \
- hwio.o \
- bh.o \
- wsm.o \
- sta.o \
- scan.o \
- debug.o
-cw1200_core-$(CONFIG_PM) += pm.o
-
-# CFLAGS_sta.o += -DDEBUG
-
-cw1200_wlan_sdio-y := cw1200_sdio.o
-cw1200_wlan_spi-y := cw1200_spi.o
-
-obj-$(CONFIG_CW1200) += cw1200_core.o
-obj-$(CONFIG_CW1200_WLAN_SDIO) += cw1200_wlan_sdio.o
-obj-$(CONFIG_CW1200_WLAN_SPI) += cw1200_wlan_spi.o
+++ /dev/null
-/*
- * Device handling thread implementation for mac80211 ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * ST-Ericsson UMAC CW1200 driver, which is
- * Copyright (c) 2010, ST-Ericsson
- * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <net/mac80211.h>
-#include <linux/kthread.h>
-#include <linux/timer.h>
-
-#include "cw1200.h"
-#include "bh.h"
-#include "hwio.h"
-#include "wsm.h"
-#include "hwbus.h"
-#include "debug.h"
-#include "fwio.h"
-
-static int cw1200_bh(void *arg);
-
-#define DOWNLOAD_BLOCK_SIZE_WR (0x1000 - 4)
-/* an SPI message cannot be bigger than (2"12-1)*2 bytes
- * "*2" to cvt to bytes
- */
-#define MAX_SZ_RD_WR_BUFFERS (DOWNLOAD_BLOCK_SIZE_WR*2)
-#define PIGGYBACK_CTRL_REG (2)
-#define EFFECTIVE_BUF_SIZE (MAX_SZ_RD_WR_BUFFERS - PIGGYBACK_CTRL_REG)
-
-/* Suspend state privates */
-enum cw1200_bh_pm_state {
- CW1200_BH_RESUMED = 0,
- CW1200_BH_SUSPEND,
- CW1200_BH_SUSPENDED,
- CW1200_BH_RESUME,
-};
-
-typedef int (*cw1200_wsm_handler)(struct cw1200_common *priv,
- u8 *data, size_t size);
-
-static void cw1200_bh_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, bh_work);
- cw1200_bh(priv);
-}
-
-int cw1200_register_bh(struct cw1200_common *priv)
-{
- int err = 0;
- /* Realtime workqueue */
- priv->bh_workqueue = alloc_workqueue("cw1200_bh",
- WQ_MEM_RECLAIM | WQ_HIGHPRI
- | WQ_CPU_INTENSIVE, 1);
-
- if (!priv->bh_workqueue)
- return -ENOMEM;
-
- INIT_WORK(&priv->bh_work, cw1200_bh_work);
-
- pr_debug("[BH] register.\n");
-
- atomic_set(&priv->bh_rx, 0);
- atomic_set(&priv->bh_tx, 0);
- atomic_set(&priv->bh_term, 0);
- atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
- priv->bh_error = 0;
- priv->hw_bufs_used = 0;
- priv->buf_id_tx = 0;
- priv->buf_id_rx = 0;
- init_waitqueue_head(&priv->bh_wq);
- init_waitqueue_head(&priv->bh_evt_wq);
-
- err = !queue_work(priv->bh_workqueue, &priv->bh_work);
- WARN_ON(err);
- return err;
-}
-
-void cw1200_unregister_bh(struct cw1200_common *priv)
-{
- atomic_add(1, &priv->bh_term);
- wake_up(&priv->bh_wq);
-
- flush_workqueue(priv->bh_workqueue);
-
- destroy_workqueue(priv->bh_workqueue);
- priv->bh_workqueue = NULL;
-
- pr_debug("[BH] unregistered.\n");
-}
-
-void cw1200_irq_handler(struct cw1200_common *priv)
-{
- pr_debug("[BH] irq.\n");
-
- /* Disable Interrupts! */
- /* NOTE: hwbus_ops->lock already held */
- __cw1200_irq_enable(priv, 0);
-
- if (/* WARN_ON */(priv->bh_error))
- return;
-
- if (atomic_add_return(1, &priv->bh_rx) == 1)
- wake_up(&priv->bh_wq);
-}
-EXPORT_SYMBOL_GPL(cw1200_irq_handler);
-
-void cw1200_bh_wakeup(struct cw1200_common *priv)
-{
- pr_debug("[BH] wakeup.\n");
- if (priv->bh_error) {
- pr_err("[BH] wakeup failed (BH error)\n");
- return;
- }
-
- if (atomic_add_return(1, &priv->bh_tx) == 1)
- wake_up(&priv->bh_wq);
-}
-
-int cw1200_bh_suspend(struct cw1200_common *priv)
-{
- pr_debug("[BH] suspend.\n");
- if (priv->bh_error) {
- wiphy_warn(priv->hw->wiphy, "BH error -- can't suspend\n");
- return -EINVAL;
- }
-
- atomic_set(&priv->bh_suspend, CW1200_BH_SUSPEND);
- wake_up(&priv->bh_wq);
- return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
- (CW1200_BH_SUSPENDED == atomic_read(&priv->bh_suspend)),
- 1 * HZ) ? 0 : -ETIMEDOUT;
-}
-
-int cw1200_bh_resume(struct cw1200_common *priv)
-{
- pr_debug("[BH] resume.\n");
- if (priv->bh_error) {
- wiphy_warn(priv->hw->wiphy, "BH error -- can't resume\n");
- return -EINVAL;
- }
-
- atomic_set(&priv->bh_suspend, CW1200_BH_RESUME);
- wake_up(&priv->bh_wq);
- return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
- (CW1200_BH_RESUMED == atomic_read(&priv->bh_suspend)),
- 1 * HZ) ? 0 : -ETIMEDOUT;
-}
-
-static inline void wsm_alloc_tx_buffer(struct cw1200_common *priv)
-{
- ++priv->hw_bufs_used;
-}
-
-int wsm_release_tx_buffer(struct cw1200_common *priv, int count)
-{
- int ret = 0;
- int hw_bufs_used = priv->hw_bufs_used;
-
- priv->hw_bufs_used -= count;
- if (WARN_ON(priv->hw_bufs_used < 0))
- ret = -1;
- else if (hw_bufs_used >= priv->wsm_caps.input_buffers)
- ret = 1;
- if (!priv->hw_bufs_used)
- wake_up(&priv->bh_evt_wq);
- return ret;
-}
-
-static int cw1200_bh_read_ctrl_reg(struct cw1200_common *priv,
- u16 *ctrl_reg)
-{
- int ret;
-
- ret = cw1200_reg_read_16(priv,
- ST90TDS_CONTROL_REG_ID, ctrl_reg);
- if (ret) {
- ret = cw1200_reg_read_16(priv,
- ST90TDS_CONTROL_REG_ID, ctrl_reg);
- if (ret)
- pr_err("[BH] Failed to read control register.\n");
- }
-
- return ret;
-}
-
-static int cw1200_device_wakeup(struct cw1200_common *priv)
-{
- u16 ctrl_reg;
- int ret;
-
- pr_debug("[BH] Device wakeup.\n");
-
- /* First, set the dpll register */
- ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
- cw1200_dpll_from_clk(priv->hw_refclk));
- if (WARN_ON(ret))
- return ret;
-
- /* To force the device to be always-on, the host sets WLAN_UP to 1 */
- ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
- ST90TDS_CONT_WUP_BIT);
- if (WARN_ON(ret))
- return ret;
-
- ret = cw1200_bh_read_ctrl_reg(priv, &ctrl_reg);
- if (WARN_ON(ret))
- return ret;
-
- /* If the device returns WLAN_RDY as 1, the device is active and will
- * remain active.
- */
- if (ctrl_reg & ST90TDS_CONT_RDY_BIT) {
- pr_debug("[BH] Device awake.\n");
- return 1;
- }
-
- return 0;
-}
-
-/* Must be called from BH thraed. */
-void cw1200_enable_powersave(struct cw1200_common *priv,
- bool enable)
-{
- pr_debug("[BH] Powerave is %s.\n",
- enable ? "enabled" : "disabled");
- priv->powersave_enabled = enable;
-}
-
-static int cw1200_bh_rx_helper(struct cw1200_common *priv,
- uint16_t *ctrl_reg,
- int *tx)
-{
- size_t read_len = 0;
- struct sk_buff *skb_rx = NULL;
- struct wsm_hdr *wsm;
- size_t wsm_len;
- u16 wsm_id;
- u8 wsm_seq;
- int rx_resync = 1;
-
- size_t alloc_len;
- u8 *data;
-
- read_len = (*ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) * 2;
- if (!read_len)
- return 0; /* No more work */
-
- if (WARN_ON((read_len < sizeof(struct wsm_hdr)) ||
- (read_len > EFFECTIVE_BUF_SIZE))) {
- pr_debug("Invalid read len: %zu (%04x)",
- read_len, *ctrl_reg);
- goto err;
- }
-
- /* Add SIZE of PIGGYBACK reg (CONTROL Reg)
- * to the NEXT Message length + 2 Bytes for SKB
- */
- read_len = read_len + 2;
-
- alloc_len = priv->hwbus_ops->align_size(
- priv->hwbus_priv, read_len);
-
- /* Check if not exceeding CW1200 capabilities */
- if (WARN_ON_ONCE(alloc_len > EFFECTIVE_BUF_SIZE)) {
- pr_debug("Read aligned len: %zu\n",
- alloc_len);
- }
-
- skb_rx = dev_alloc_skb(alloc_len);
- if (WARN_ON(!skb_rx))
- goto err;
-
- skb_trim(skb_rx, 0);
- skb_put(skb_rx, read_len);
- data = skb_rx->data;
- if (WARN_ON(!data))
- goto err;
-
- if (WARN_ON(cw1200_data_read(priv, data, alloc_len))) {
- pr_err("rx blew up, len %zu\n", alloc_len);
- goto err;
- }
-
- /* Piggyback */
- *ctrl_reg = __le16_to_cpu(
- ((__le16 *)data)[alloc_len / 2 - 1]);
-
- wsm = (struct wsm_hdr *)data;
- wsm_len = __le16_to_cpu(wsm->len);
- if (WARN_ON(wsm_len > read_len))
- goto err;
-
- if (priv->wsm_enable_wsm_dumps)
- print_hex_dump_bytes("<-- ",
- DUMP_PREFIX_NONE,
- data, wsm_len);
-
- wsm_id = __le16_to_cpu(wsm->id) & 0xFFF;
- wsm_seq = (__le16_to_cpu(wsm->id) >> 13) & 7;
-
- skb_trim(skb_rx, wsm_len);
-
- if (wsm_id == 0x0800) {
- wsm_handle_exception(priv,
- &data[sizeof(*wsm)],
- wsm_len - sizeof(*wsm));
- goto err;
- } else if (!rx_resync) {
- if (WARN_ON(wsm_seq != priv->wsm_rx_seq))
- goto err;
- }
- priv->wsm_rx_seq = (wsm_seq + 1) & 7;
- rx_resync = 0;
-
- if (wsm_id & 0x0400) {
- int rc = wsm_release_tx_buffer(priv, 1);
- if (WARN_ON(rc < 0))
- return rc;
- else if (rc > 0)
- *tx = 1;
- }
-
- /* cw1200_wsm_rx takes care on SKB livetime */
- if (WARN_ON(wsm_handle_rx(priv, wsm_id, wsm, &skb_rx)))
- goto err;
-
- if (skb_rx) {
- dev_kfree_skb(skb_rx);
- skb_rx = NULL;
- }
-
- return 0;
-
-err:
- if (skb_rx) {
- dev_kfree_skb(skb_rx);
- skb_rx = NULL;
- }
- return -1;
-}
-
-static int cw1200_bh_tx_helper(struct cw1200_common *priv,
- int *pending_tx,
- int *tx_burst)
-{
- size_t tx_len;
- u8 *data;
- int ret;
- struct wsm_hdr *wsm;
-
- if (priv->device_can_sleep) {
- ret = cw1200_device_wakeup(priv);
- if (WARN_ON(ret < 0)) { /* Error in wakeup */
- *pending_tx = 1;
- return 0;
- } else if (ret) { /* Woke up */
- priv->device_can_sleep = false;
- } else { /* Did not awake */
- *pending_tx = 1;
- return 0;
- }
- }
-
- wsm_alloc_tx_buffer(priv);
- ret = wsm_get_tx(priv, &data, &tx_len, tx_burst);
- if (ret <= 0) {
- wsm_release_tx_buffer(priv, 1);
- if (WARN_ON(ret < 0))
- return ret; /* Error */
- return 0; /* No work */
- }
-
- wsm = (struct wsm_hdr *)data;
- BUG_ON(tx_len < sizeof(*wsm));
- BUG_ON(__le16_to_cpu(wsm->len) != tx_len);
-
- atomic_add(1, &priv->bh_tx);
-
- tx_len = priv->hwbus_ops->align_size(
- priv->hwbus_priv, tx_len);
-
- /* Check if not exceeding CW1200 capabilities */
- if (WARN_ON_ONCE(tx_len > EFFECTIVE_BUF_SIZE))
- pr_debug("Write aligned len: %zu\n", tx_len);
-
- wsm->id &= __cpu_to_le16(0xffff ^ WSM_TX_SEQ(WSM_TX_SEQ_MAX));
- wsm->id |= __cpu_to_le16(WSM_TX_SEQ(priv->wsm_tx_seq));
-
- if (WARN_ON(cw1200_data_write(priv, data, tx_len))) {
- pr_err("tx blew up, len %zu\n", tx_len);
- wsm_release_tx_buffer(priv, 1);
- return -1; /* Error */
- }
-
- if (priv->wsm_enable_wsm_dumps)
- print_hex_dump_bytes("--> ",
- DUMP_PREFIX_NONE,
- data,
- __le16_to_cpu(wsm->len));
-
- wsm_txed(priv, data);
- priv->wsm_tx_seq = (priv->wsm_tx_seq + 1) & WSM_TX_SEQ_MAX;
-
- if (*tx_burst > 1) {
- cw1200_debug_tx_burst(priv);
- return 1; /* Work remains */
- }
-
- return 0;
-}
-
-static int cw1200_bh(void *arg)
-{
- struct cw1200_common *priv = arg;
- int rx, tx, term, suspend;
- u16 ctrl_reg = 0;
- int tx_allowed;
- int pending_tx = 0;
- int tx_burst;
- long status;
- u32 dummy;
- int ret;
-
- for (;;) {
- if (!priv->hw_bufs_used &&
- priv->powersave_enabled &&
- !priv->device_can_sleep &&
- !atomic_read(&priv->recent_scan)) {
- status = 1 * HZ;
- pr_debug("[BH] Device wakedown. No data.\n");
- cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID, 0);
- priv->device_can_sleep = true;
- } else if (priv->hw_bufs_used) {
- /* Interrupt loss detection */
- status = 1 * HZ;
- } else {
- status = MAX_SCHEDULE_TIMEOUT;
- }
-
- /* Dummy Read for SDIO retry mechanism*/
- if ((priv->hw_type != -1) &&
- (atomic_read(&priv->bh_rx) == 0) &&
- (atomic_read(&priv->bh_tx) == 0))
- cw1200_reg_read(priv, ST90TDS_CONFIG_REG_ID,
- &dummy, sizeof(dummy));
-
- pr_debug("[BH] waiting ...\n");
- status = wait_event_interruptible_timeout(priv->bh_wq, ({
- rx = atomic_xchg(&priv->bh_rx, 0);
- tx = atomic_xchg(&priv->bh_tx, 0);
- term = atomic_xchg(&priv->bh_term, 0);
- suspend = pending_tx ?
- 0 : atomic_read(&priv->bh_suspend);
- (rx || tx || term || suspend || priv->bh_error);
- }), status);
-
- pr_debug("[BH] - rx: %d, tx: %d, term: %d, bh_err: %d, suspend: %d, status: %ld\n",
- rx, tx, term, suspend, priv->bh_error, status);
-
- /* Did an error occur? */
- if ((status < 0 && status != -ERESTARTSYS) ||
- term || priv->bh_error) {
- break;
- }
- if (!status) { /* wait_event timed out */
- unsigned long timestamp = jiffies;
- long timeout;
- int pending = 0;
- int i;
-
- /* Check to see if we have any outstanding frames */
- if (priv->hw_bufs_used && (!rx || !tx)) {
- wiphy_warn(priv->hw->wiphy,
- "Missed interrupt? (%d frames outstanding)\n",
- priv->hw_bufs_used);
- rx = 1;
-
- /* Get a timestamp of "oldest" frame */
- for (i = 0; i < 4; ++i)
- pending += cw1200_queue_get_xmit_timestamp(
- &priv->tx_queue[i],
- ×tamp,
- priv->pending_frame_id);
-
- /* Check if frame transmission is timed out.
- * Add an extra second with respect to possible
- * interrupt loss.
- */
- timeout = timestamp +
- WSM_CMD_LAST_CHANCE_TIMEOUT +
- 1 * HZ -
- jiffies;
-
- /* And terminate BH thread if the frame is "stuck" */
- if (pending && timeout < 0) {
- wiphy_warn(priv->hw->wiphy,
- "Timeout waiting for TX confirm (%d/%d pending, %ld vs %lu).\n",
- priv->hw_bufs_used, pending,
- timestamp, jiffies);
- break;
- }
- } else if (!priv->device_can_sleep &&
- !atomic_read(&priv->recent_scan)) {
- pr_debug("[BH] Device wakedown. Timeout.\n");
- cw1200_reg_write_16(priv,
- ST90TDS_CONTROL_REG_ID, 0);
- priv->device_can_sleep = true;
- }
- goto done;
- } else if (suspend) {
- pr_debug("[BH] Device suspend.\n");
- if (priv->powersave_enabled) {
- pr_debug("[BH] Device wakedown. Suspend.\n");
- cw1200_reg_write_16(priv,
- ST90TDS_CONTROL_REG_ID, 0);
- priv->device_can_sleep = true;
- }
-
- atomic_set(&priv->bh_suspend, CW1200_BH_SUSPENDED);
- wake_up(&priv->bh_evt_wq);
- status = wait_event_interruptible(priv->bh_wq,
- CW1200_BH_RESUME == atomic_read(&priv->bh_suspend));
- if (status < 0) {
- wiphy_err(priv->hw->wiphy,
- "Failed to wait for resume: %ld.\n",
- status);
- break;
- }
- pr_debug("[BH] Device resume.\n");
- atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
- wake_up(&priv->bh_evt_wq);
- atomic_add(1, &priv->bh_rx);
- goto done;
- }
-
- rx:
- tx += pending_tx;
- pending_tx = 0;
-
- if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
- break;
-
- /* Don't bother trying to rx unless we have data to read */
- if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
- ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
- if (ret < 0)
- break;
- /* Double up here if there's more data.. */
- if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
- ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
- if (ret < 0)
- break;
- }
- }
-
- tx:
- if (tx) {
- tx = 0;
-
- BUG_ON(priv->hw_bufs_used > priv->wsm_caps.input_buffers);
- tx_burst = priv->wsm_caps.input_buffers - priv->hw_bufs_used;
- tx_allowed = tx_burst > 0;
-
- if (!tx_allowed) {
- /* Buffers full. Ensure we process tx
- * after we handle rx..
- */
- pending_tx = tx;
- goto done_rx;
- }
- ret = cw1200_bh_tx_helper(priv, &pending_tx, &tx_burst);
- if (ret < 0)
- break;
- if (ret > 0) /* More to transmit */
- tx = ret;
-
- /* Re-read ctrl reg */
- if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
- break;
- }
-
- done_rx:
- if (priv->bh_error)
- break;
- if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK)
- goto rx;
- if (tx)
- goto tx;
-
- done:
- /* Re-enable device interrupts */
- priv->hwbus_ops->lock(priv->hwbus_priv);
- __cw1200_irq_enable(priv, 1);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- }
-
- /* Explicitly disable device interrupts */
- priv->hwbus_ops->lock(priv->hwbus_priv);
- __cw1200_irq_enable(priv, 0);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
-
- if (!term) {
- pr_err("[BH] Fatal error, exiting.\n");
- priv->bh_error = 1;
- /* TODO: schedule_work(recovery) */
- }
- return 0;
-}
+++ /dev/null
-/*
- * Device handling thread interface for mac80211 ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_BH_H
-#define CW1200_BH_H
-
-/* extern */ struct cw1200_common;
-
-int cw1200_register_bh(struct cw1200_common *priv);
-void cw1200_unregister_bh(struct cw1200_common *priv);
-void cw1200_irq_handler(struct cw1200_common *priv);
-void cw1200_bh_wakeup(struct cw1200_common *priv);
-int cw1200_bh_suspend(struct cw1200_common *priv);
-int cw1200_bh_resume(struct cw1200_common *priv);
-/* Must be called from BH thread. */
-void cw1200_enable_powersave(struct cw1200_common *priv,
- bool enable);
-int wsm_release_tx_buffer(struct cw1200_common *priv, int count);
-
-#endif /* CW1200_BH_H */
+++ /dev/null
-/*
- * Common private data for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on the mac80211 Prism54 code, which is
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- *
- * Based on the islsm (softmac prism54) driver, which is:
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_H
-#define CW1200_H
-
-#include <linux/wait.h>
-#include <linux/mutex.h>
-#include <linux/workqueue.h>
-#include <net/mac80211.h>
-
-#include "queue.h"
-#include "wsm.h"
-#include "scan.h"
-#include "txrx.h"
-#include "pm.h"
-
-/* Forward declarations */
-struct hwbus_ops;
-struct task_struct;
-struct cw1200_debug_priv;
-struct firmware;
-
-#define CW1200_MAX_CTRL_FRAME_LEN (0x1000)
-
-#define CW1200_MAX_STA_IN_AP_MODE (5)
-#define CW1200_LINK_ID_AFTER_DTIM (CW1200_MAX_STA_IN_AP_MODE + 1)
-#define CW1200_LINK_ID_UAPSD (CW1200_MAX_STA_IN_AP_MODE + 2)
-#define CW1200_LINK_ID_MAX (CW1200_MAX_STA_IN_AP_MODE + 3)
-#define CW1200_MAX_REQUEUE_ATTEMPTS (5)
-
-#define CW1200_MAX_TID (8)
-
-#define CW1200_BLOCK_ACK_CNT (30)
-#define CW1200_BLOCK_ACK_THLD (800)
-#define CW1200_BLOCK_ACK_HIST (3)
-#define CW1200_BLOCK_ACK_INTERVAL (1 * HZ / CW1200_BLOCK_ACK_HIST)
-
-#define CW1200_JOIN_TIMEOUT (1 * HZ)
-#define CW1200_AUTH_TIMEOUT (5 * HZ)
-
-struct cw1200_ht_info {
- struct ieee80211_sta_ht_cap ht_cap;
- enum nl80211_channel_type channel_type;
- u16 operation_mode;
-};
-
-/* Please keep order */
-enum cw1200_join_status {
- CW1200_JOIN_STATUS_PASSIVE = 0,
- CW1200_JOIN_STATUS_MONITOR,
- CW1200_JOIN_STATUS_JOINING,
- CW1200_JOIN_STATUS_PRE_STA,
- CW1200_JOIN_STATUS_STA,
- CW1200_JOIN_STATUS_IBSS,
- CW1200_JOIN_STATUS_AP,
-};
-
-enum cw1200_link_status {
- CW1200_LINK_OFF,
- CW1200_LINK_RESERVE,
- CW1200_LINK_SOFT,
- CW1200_LINK_HARD,
- CW1200_LINK_RESET,
- CW1200_LINK_RESET_REMAP,
-};
-
-extern int cw1200_power_mode;
-extern const char * const cw1200_fw_types[];
-
-struct cw1200_link_entry {
- unsigned long timestamp;
- enum cw1200_link_status status;
- enum cw1200_link_status prev_status;
- u8 mac[ETH_ALEN];
- u8 buffered[CW1200_MAX_TID];
- struct sk_buff_head rx_queue;
-};
-
-struct cw1200_common {
- /* interfaces to the rest of the stack */
- struct ieee80211_hw *hw;
- struct ieee80211_vif *vif;
- struct device *pdev;
-
- /* Statistics */
- struct ieee80211_low_level_stats stats;
-
- /* Our macaddr */
- u8 mac_addr[ETH_ALEN];
-
- /* Hardware interface */
- const struct hwbus_ops *hwbus_ops;
- struct hwbus_priv *hwbus_priv;
-
- /* Hardware information */
- enum {
- HIF_9000_SILICON_VERSATILE = 0,
- HIF_8601_VERSATILE,
- HIF_8601_SILICON,
- } hw_type;
- enum {
- CW1200_HW_REV_CUT10 = 10,
- CW1200_HW_REV_CUT11 = 11,
- CW1200_HW_REV_CUT20 = 20,
- CW1200_HW_REV_CUT22 = 22,
- CW1X60_HW_REV = 40,
- } hw_revision;
- int hw_refclk;
- bool hw_have_5ghz;
- const struct firmware *sdd;
- char *sdd_path;
-
- struct cw1200_debug_priv *debug;
-
- struct workqueue_struct *workqueue;
- struct mutex conf_mutex;
-
- struct cw1200_queue tx_queue[4];
- struct cw1200_queue_stats tx_queue_stats;
- int tx_burst_idx;
-
- /* firmware/hardware info */
- unsigned int tx_hdr_len;
-
- /* Radio data */
- int output_power;
-
- /* BBP/MAC state */
- struct ieee80211_rate *rates;
- struct ieee80211_rate *mcs_rates;
- struct ieee80211_channel *channel;
- struct wsm_edca_params edca;
- struct wsm_tx_queue_params tx_queue_params;
- struct wsm_mib_association_mode association_mode;
- struct wsm_set_bss_params bss_params;
- struct cw1200_ht_info ht_info;
- struct wsm_set_pm powersave_mode;
- struct wsm_set_pm firmware_ps_mode;
- int cqm_rssi_thold;
- unsigned cqm_rssi_hyst;
- bool cqm_use_rssi;
- int cqm_beacon_loss_count;
- int channel_switch_in_progress;
- wait_queue_head_t channel_switch_done;
- u8 long_frame_max_tx_count;
- u8 short_frame_max_tx_count;
- int mode;
- bool enable_beacon;
- int beacon_int;
- bool listening;
- struct wsm_rx_filter rx_filter;
- struct wsm_mib_multicast_filter multicast_filter;
- bool has_multicast_subscription;
- bool disable_beacon_filter;
- struct work_struct update_filtering_work;
- struct work_struct set_beacon_wakeup_period_work;
-
- u8 ba_rx_tid_mask;
- u8 ba_tx_tid_mask;
-
- struct cw1200_pm_state pm_state;
-
- struct wsm_p2p_ps_modeinfo p2p_ps_modeinfo;
- struct wsm_uapsd_info uapsd_info;
- bool setbssparams_done;
- bool bt_present;
- u8 conf_listen_interval;
- u32 listen_interval;
- u32 erp_info;
- u32 rts_threshold;
-
- /* BH */
- atomic_t bh_rx;
- atomic_t bh_tx;
- atomic_t bh_term;
- atomic_t bh_suspend;
-
- struct workqueue_struct *bh_workqueue;
- struct work_struct bh_work;
-
- int bh_error;
- wait_queue_head_t bh_wq;
- wait_queue_head_t bh_evt_wq;
- u8 buf_id_tx;
- u8 buf_id_rx;
- u8 wsm_rx_seq;
- u8 wsm_tx_seq;
- int hw_bufs_used;
- bool powersave_enabled;
- bool device_can_sleep;
-
- /* Scan status */
- struct cw1200_scan scan;
- /* Keep cw1200 awake (WUP = 1) 1 second after each scan to avoid
- * FW issue with sleeping/waking up.
- */
- atomic_t recent_scan;
- struct delayed_work clear_recent_scan_work;
-
- /* WSM */
- struct wsm_startup_ind wsm_caps;
- struct mutex wsm_cmd_mux;
- struct wsm_buf wsm_cmd_buf;
- struct wsm_cmd wsm_cmd;
- wait_queue_head_t wsm_cmd_wq;
- wait_queue_head_t wsm_startup_done;
- int firmware_ready;
- atomic_t tx_lock;
-
- /* WSM debug */
- int wsm_enable_wsm_dumps;
-
- /* WSM Join */
- enum cw1200_join_status join_status;
- u32 pending_frame_id;
- bool join_pending;
- struct delayed_work join_timeout;
- struct work_struct unjoin_work;
- struct work_struct join_complete_work;
- int join_complete_status;
- int join_dtim_period;
- bool delayed_unjoin;
-
- /* TX/RX and security */
- s8 wep_default_key_id;
- struct work_struct wep_key_work;
- u32 key_map;
- struct wsm_add_key keys[WSM_KEY_MAX_INDEX + 1];
-
- /* AP powersave */
- u32 link_id_map;
- struct cw1200_link_entry link_id_db[CW1200_MAX_STA_IN_AP_MODE];
- struct work_struct link_id_work;
- struct delayed_work link_id_gc_work;
- u32 sta_asleep_mask;
- u32 pspoll_mask;
- bool aid0_bit_set;
- spinlock_t ps_state_lock; /* Protect power save state */
- bool buffered_multicasts;
- bool tx_multicast;
- struct work_struct set_tim_work;
- struct work_struct set_cts_work;
- struct work_struct multicast_start_work;
- struct work_struct multicast_stop_work;
- struct timer_list mcast_timeout;
-
- /* WSM events and CQM implementation */
- spinlock_t event_queue_lock; /* Protect event queue */
- struct list_head event_queue;
- struct work_struct event_handler;
-
- struct delayed_work bss_loss_work;
- spinlock_t bss_loss_lock; /* Protect BSS loss state */
- int bss_loss_state;
- u32 bss_loss_confirm_id;
- int delayed_link_loss;
- struct work_struct bss_params_work;
-
- /* TX rate policy cache */
- struct tx_policy_cache tx_policy_cache;
- struct work_struct tx_policy_upload_work;
-
- /* legacy PS mode switch in suspend */
- int ps_mode_switch_in_progress;
- wait_queue_head_t ps_mode_switch_done;
-
- /* Workaround for WFD testcase 6.1.10*/
- struct work_struct linkid_reset_work;
- u8 action_frame_sa[ETH_ALEN];
- u8 action_linkid;
-};
-
-struct cw1200_sta_priv {
- int link_id;
-};
-
-/* interfaces for the drivers */
-int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
- struct hwbus_priv *hwbus,
- struct device *pdev,
- struct cw1200_common **pself,
- int ref_clk, const u8 *macaddr,
- const char *sdd_path, bool have_5ghz);
-void cw1200_core_release(struct cw1200_common *self);
-
-#define FWLOAD_BLOCK_SIZE (1024)
-
-static inline int cw1200_is_ht(const struct cw1200_ht_info *ht_info)
-{
- return ht_info->channel_type != NL80211_CHAN_NO_HT;
-}
-
-static inline int cw1200_ht_greenfield(const struct cw1200_ht_info *ht_info)
-{
- return cw1200_is_ht(ht_info) &&
- (ht_info->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
- !(ht_info->operation_mode &
- IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
-}
-
-static inline int cw1200_ht_ampdu_density(const struct cw1200_ht_info *ht_info)
-{
- if (!cw1200_is_ht(ht_info))
- return 0;
- return ht_info->ht_cap.ampdu_density;
-}
-
-#endif /* CW1200_H */
+++ /dev/null
-/*
- * Mac80211 SDIO driver for ST-Ericsson CW1200 device
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/mmc/host.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/card.h>
-#include <linux/mmc/sdio.h>
-#include <net/mac80211.h>
-
-#include "cw1200.h"
-#include "hwbus.h"
-#include <linux/platform_data/net-cw1200.h>
-#include "hwio.h"
-
-MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
-MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SDIO driver");
-MODULE_LICENSE("GPL");
-
-#define SDIO_BLOCK_SIZE (512)
-
-/* Default platform data for Sagrad modules */
-static struct cw1200_platform_data_sdio sagrad_109x_evk_platform_data = {
- .ref_clk = 38400,
- .have_5ghz = false,
- .sdd_file = "sdd_sagrad_1091_1098.bin",
-};
-
-/* Allow platform data to be overridden */
-static struct cw1200_platform_data_sdio *global_plat_data = &sagrad_109x_evk_platform_data;
-
-void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata)
-{
- global_plat_data = pdata;
-}
-
-struct hwbus_priv {
- struct sdio_func *func;
- struct cw1200_common *core;
- const struct cw1200_platform_data_sdio *pdata;
-};
-
-#ifndef SDIO_VENDOR_ID_STE
-#define SDIO_VENDOR_ID_STE 0x0020
-#endif
-
-#ifndef SDIO_DEVICE_ID_STE_CW1200
-#define SDIO_DEVICE_ID_STE_CW1200 0x2280
-#endif
-
-static const struct sdio_device_id cw1200_sdio_ids[] = {
- { SDIO_DEVICE(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200) },
- { /* end: all zeroes */ },
-};
-
-/* hwbus_ops implemetation */
-
-static int cw1200_sdio_memcpy_fromio(struct hwbus_priv *self,
- unsigned int addr,
- void *dst, int count)
-{
- return sdio_memcpy_fromio(self->func, dst, addr, count);
-}
-
-static int cw1200_sdio_memcpy_toio(struct hwbus_priv *self,
- unsigned int addr,
- const void *src, int count)
-{
- return sdio_memcpy_toio(self->func, addr, (void *)src, count);
-}
-
-static void cw1200_sdio_lock(struct hwbus_priv *self)
-{
- sdio_claim_host(self->func);
-}
-
-static void cw1200_sdio_unlock(struct hwbus_priv *self)
-{
- sdio_release_host(self->func);
-}
-
-static void cw1200_sdio_irq_handler(struct sdio_func *func)
-{
- struct hwbus_priv *self = sdio_get_drvdata(func);
-
- /* note: sdio_host already claimed here. */
- if (self->core)
- cw1200_irq_handler(self->core);
-}
-
-static irqreturn_t cw1200_gpio_hardirq(int irq, void *dev_id)
-{
- return IRQ_WAKE_THREAD;
-}
-
-static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
-{
- struct hwbus_priv *self = dev_id;
-
- if (self->core) {
- cw1200_sdio_lock(self);
- cw1200_irq_handler(self->core);
- cw1200_sdio_unlock(self);
- return IRQ_HANDLED;
- } else {
- return IRQ_NONE;
- }
-}
-
-static int cw1200_request_irq(struct hwbus_priv *self)
-{
- int ret;
- u8 cccr;
-
- cccr = sdio_f0_readb(self->func, SDIO_CCCR_IENx, &ret);
- if (WARN_ON(ret))
- goto err;
-
- /* Master interrupt enable ... */
- cccr |= BIT(0);
-
- /* ... for our function */
- cccr |= BIT(self->func->num);
-
- sdio_f0_writeb(self->func, cccr, SDIO_CCCR_IENx, &ret);
- if (WARN_ON(ret))
- goto err;
-
- ret = enable_irq_wake(self->pdata->irq);
- if (WARN_ON(ret))
- goto err;
-
- /* Request the IRQ */
- ret = request_threaded_irq(self->pdata->irq, cw1200_gpio_hardirq,
- cw1200_gpio_irq,
- IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
- "cw1200_wlan_irq", self);
- if (WARN_ON(ret))
- goto err;
-
- return 0;
-
-err:
- return ret;
-}
-
-static int cw1200_sdio_irq_subscribe(struct hwbus_priv *self)
-{
- int ret = 0;
-
- pr_debug("SW IRQ subscribe\n");
- sdio_claim_host(self->func);
- if (self->pdata->irq)
- ret = cw1200_request_irq(self);
- else
- ret = sdio_claim_irq(self->func, cw1200_sdio_irq_handler);
-
- sdio_release_host(self->func);
- return ret;
-}
-
-static int cw1200_sdio_irq_unsubscribe(struct hwbus_priv *self)
-{
- int ret = 0;
-
- pr_debug("SW IRQ unsubscribe\n");
-
- if (self->pdata->irq) {
- disable_irq_wake(self->pdata->irq);
- free_irq(self->pdata->irq, self);
- } else {
- sdio_claim_host(self->func);
- ret = sdio_release_irq(self->func);
- sdio_release_host(self->func);
- }
- return ret;
-}
-
-static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
-{
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 0);
- msleep(30); /* Min is 2 * CLK32K cycles */
- gpio_free(pdata->reset);
- }
-
- if (pdata->power_ctrl)
- pdata->power_ctrl(pdata, false);
- if (pdata->clk_ctrl)
- pdata->clk_ctrl(pdata, false);
-
- return 0;
-}
-
-static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
-{
- /* Ensure I/Os are pulled low */
- if (pdata->reset) {
- gpio_request(pdata->reset, "cw1200_wlan_reset");
- gpio_direction_output(pdata->reset, 0);
- }
- if (pdata->powerup) {
- gpio_request(pdata->powerup, "cw1200_wlan_powerup");
- gpio_direction_output(pdata->powerup, 0);
- }
- if (pdata->reset || pdata->powerup)
- msleep(10); /* Settle time? */
-
- /* Enable 3v3 and 1v8 to hardware */
- if (pdata->power_ctrl) {
- if (pdata->power_ctrl(pdata, true)) {
- pr_err("power_ctrl() failed!\n");
- return -1;
- }
- }
-
- /* Enable CLK32K */
- if (pdata->clk_ctrl) {
- if (pdata->clk_ctrl(pdata, true)) {
- pr_err("clk_ctrl() failed!\n");
- return -1;
- }
- msleep(10); /* Delay until clock is stable for 2 cycles */
- }
-
- /* Enable POWERUP signal */
- if (pdata->powerup) {
- gpio_set_value(pdata->powerup, 1);
- msleep(250); /* or more..? */
- }
- /* Enable RSTn signal */
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 1);
- msleep(50); /* Or more..? */
- }
- return 0;
-}
-
-static size_t cw1200_sdio_align_size(struct hwbus_priv *self, size_t size)
-{
- if (self->pdata->no_nptb)
- size = round_up(size, SDIO_BLOCK_SIZE);
- else
- size = sdio_align_size(self->func, size);
-
- return size;
-}
-
-static int cw1200_sdio_pm(struct hwbus_priv *self, bool suspend)
-{
- int ret = 0;
-
- if (self->pdata->irq)
- ret = irq_set_irq_wake(self->pdata->irq, suspend);
- return ret;
-}
-
-static struct hwbus_ops cw1200_sdio_hwbus_ops = {
- .hwbus_memcpy_fromio = cw1200_sdio_memcpy_fromio,
- .hwbus_memcpy_toio = cw1200_sdio_memcpy_toio,
- .lock = cw1200_sdio_lock,
- .unlock = cw1200_sdio_unlock,
- .align_size = cw1200_sdio_align_size,
- .power_mgmt = cw1200_sdio_pm,
-};
-
-/* Probe Function to be called by SDIO stack when device is discovered */
-static int cw1200_sdio_probe(struct sdio_func *func,
- const struct sdio_device_id *id)
-{
- struct hwbus_priv *self;
- int status;
-
- pr_info("cw1200_wlan_sdio: Probe called\n");
-
- /* We are only able to handle the wlan function */
- if (func->num != 0x01)
- return -ENODEV;
-
- self = kzalloc(sizeof(*self), GFP_KERNEL);
- if (!self) {
- pr_err("Can't allocate SDIO hwbus_priv.\n");
- return -ENOMEM;
- }
-
- func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
-
- self->pdata = global_plat_data; /* FIXME */
- self->func = func;
- sdio_set_drvdata(func, self);
- sdio_claim_host(func);
- sdio_enable_func(func);
- sdio_release_host(func);
-
- status = cw1200_sdio_irq_subscribe(self);
-
- status = cw1200_core_probe(&cw1200_sdio_hwbus_ops,
- self, &func->dev, &self->core,
- self->pdata->ref_clk,
- self->pdata->macaddr,
- self->pdata->sdd_file,
- self->pdata->have_5ghz);
- if (status) {
- cw1200_sdio_irq_unsubscribe(self);
- sdio_claim_host(func);
- sdio_disable_func(func);
- sdio_release_host(func);
- sdio_set_drvdata(func, NULL);
- kfree(self);
- }
-
- return status;
-}
-
-/* Disconnect Function to be called by SDIO stack when
- * device is disconnected
- */
-static void cw1200_sdio_disconnect(struct sdio_func *func)
-{
- struct hwbus_priv *self = sdio_get_drvdata(func);
-
- if (self) {
- cw1200_sdio_irq_unsubscribe(self);
- if (self->core) {
- cw1200_core_release(self->core);
- self->core = NULL;
- }
- sdio_claim_host(func);
- sdio_disable_func(func);
- sdio_release_host(func);
- sdio_set_drvdata(func, NULL);
- kfree(self);
- }
-}
-
-#ifdef CONFIG_PM
-static int cw1200_sdio_suspend(struct device *dev)
-{
- int ret;
- struct sdio_func *func = dev_to_sdio_func(dev);
- struct hwbus_priv *self = sdio_get_drvdata(func);
-
- if (!cw1200_can_suspend(self->core))
- return -EAGAIN;
-
- /* Notify SDIO that CW1200 will remain powered during suspend */
- ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
- if (ret)
- pr_err("Error setting SDIO pm flags: %i\n", ret);
-
- return ret;
-}
-
-static int cw1200_sdio_resume(struct device *dev)
-{
- return 0;
-}
-
-static const struct dev_pm_ops cw1200_pm_ops = {
- .suspend = cw1200_sdio_suspend,
- .resume = cw1200_sdio_resume,
-};
-#endif
-
-static struct sdio_driver sdio_driver = {
- .name = "cw1200_wlan_sdio",
- .id_table = cw1200_sdio_ids,
- .probe = cw1200_sdio_probe,
- .remove = cw1200_sdio_disconnect,
-#ifdef CONFIG_PM
- .drv = {
- .pm = &cw1200_pm_ops,
- }
-#endif
-};
-
-/* Init Module function -> Called by insmod */
-static int __init cw1200_sdio_init(void)
-{
- const struct cw1200_platform_data_sdio *pdata;
- int ret;
-
- /* FIXME -- this won't support multiple devices */
- pdata = global_plat_data;
-
- if (cw1200_sdio_on(pdata)) {
- ret = -1;
- goto err;
- }
-
- ret = sdio_register_driver(&sdio_driver);
- if (ret)
- goto err;
-
- return 0;
-
-err:
- cw1200_sdio_off(pdata);
- return ret;
-}
-
-/* Called at Driver Unloading */
-static void __exit cw1200_sdio_exit(void)
-{
- const struct cw1200_platform_data_sdio *pdata;
-
- /* FIXME -- this won't support multiple devices */
- pdata = global_plat_data;
- sdio_unregister_driver(&sdio_driver);
- cw1200_sdio_off(pdata);
-}
-
-
-module_init(cw1200_sdio_init);
-module_exit(cw1200_sdio_exit);
+++ /dev/null
-/*
- * Mac80211 SPI driver for ST-Ericsson CW1200 device
- *
- * Copyright (c) 2011, Sagrad Inc.
- * Author: Solomon Peachy <speachy@sagrad.com>
- *
- * Based on cw1200_sdio.c
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <net/mac80211.h>
-
-#include <linux/spi/spi.h>
-#include <linux/device.h>
-
-#include "cw1200.h"
-#include "hwbus.h"
-#include <linux/platform_data/net-cw1200.h>
-#include "hwio.h"
-
-MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
-MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SPI driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("spi:cw1200_wlan_spi");
-
-/* #define SPI_DEBUG */
-
-struct hwbus_priv {
- struct spi_device *func;
- struct cw1200_common *core;
- const struct cw1200_platform_data_spi *pdata;
- spinlock_t lock; /* Serialize all bus operations */
- wait_queue_head_t wq;
- int claimed;
-};
-
-#define SDIO_TO_SPI_ADDR(addr) ((addr & 0x1f)>>2)
-#define SET_WRITE 0x7FFF /* usage: and operation */
-#define SET_READ 0x8000 /* usage: or operation */
-
-/* Notes on byte ordering:
- LE: B0 B1 B2 B3
- BE: B3 B2 B1 B0
-
- Hardware expects 32-bit data to be written as 16-bit BE words:
-
- B1 B0 B3 B2
-*/
-
-static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
- unsigned int addr,
- void *dst, int count)
-{
- int ret, i;
- u16 regaddr;
- struct spi_message m;
-
- struct spi_transfer t_addr = {
- .tx_buf = ®addr,
- .len = sizeof(regaddr),
- };
- struct spi_transfer t_msg = {
- .rx_buf = dst,
- .len = count,
- };
-
- regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
- regaddr |= SET_READ;
- regaddr |= (count>>1);
-
-#ifdef SPI_DEBUG
- pr_info("READ : %04d from 0x%02x (%04x)\n", count, addr, regaddr);
-#endif
-
- /* Header is LE16 */
- regaddr = cpu_to_le16(regaddr);
-
- /* We have to byteswap if the SPI bus is limited to 8b operation
- or we are running on a Big Endian system
- */
-#if defined(__LITTLE_ENDIAN)
- if (self->func->bits_per_word == 8)
-#endif
- regaddr = swab16(regaddr);
-
- spi_message_init(&m);
- spi_message_add_tail(&t_addr, &m);
- spi_message_add_tail(&t_msg, &m);
- ret = spi_sync(self->func, &m);
-
-#ifdef SPI_DEBUG
- pr_info("READ : ");
- for (i = 0; i < t_addr.len; i++)
- printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
- printk(" : ");
- for (i = 0; i < t_msg.len; i++)
- printk("%02x ", ((u8 *)t_msg.rx_buf)[i]);
- printk("\n");
-#endif
-
- /* We have to byteswap if the SPI bus is limited to 8b operation
- or we are running on a Big Endian system
- */
-#if defined(__LITTLE_ENDIAN)
- if (self->func->bits_per_word == 8)
-#endif
- {
- uint16_t *buf = (uint16_t *)dst;
- for (i = 0; i < ((count + 1) >> 1); i++)
- buf[i] = swab16(buf[i]);
- }
-
- return ret;
-}
-
-static int cw1200_spi_memcpy_toio(struct hwbus_priv *self,
- unsigned int addr,
- const void *src, int count)
-{
- int rval, i;
- u16 regaddr;
- struct spi_transfer t_addr = {
- .tx_buf = ®addr,
- .len = sizeof(regaddr),
- };
- struct spi_transfer t_msg = {
- .tx_buf = src,
- .len = count,
- };
- struct spi_message m;
-
- regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
- regaddr &= SET_WRITE;
- regaddr |= (count>>1);
-
-#ifdef SPI_DEBUG
- pr_info("WRITE: %04d to 0x%02x (%04x)\n", count, addr, regaddr);
-#endif
-
- /* Header is LE16 */
- regaddr = cpu_to_le16(regaddr);
-
- /* We have to byteswap if the SPI bus is limited to 8b operation
- or we are running on a Big Endian system
- */
-#if defined(__LITTLE_ENDIAN)
- if (self->func->bits_per_word == 8)
-#endif
- {
- uint16_t *buf = (uint16_t *)src;
- regaddr = swab16(regaddr);
- for (i = 0; i < ((count + 1) >> 1); i++)
- buf[i] = swab16(buf[i]);
- }
-
-#ifdef SPI_DEBUG
- pr_info("WRITE: ");
- for (i = 0; i < t_addr.len; i++)
- printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
- printk(" : ");
- for (i = 0; i < t_msg.len; i++)
- printk("%02x ", ((u8 *)t_msg.tx_buf)[i]);
- printk("\n");
-#endif
-
- spi_message_init(&m);
- spi_message_add_tail(&t_addr, &m);
- spi_message_add_tail(&t_msg, &m);
- rval = spi_sync(self->func, &m);
-
-#ifdef SPI_DEBUG
- pr_info("WROTE: %d\n", m.actual_length);
-#endif
-
-#if defined(__LITTLE_ENDIAN)
- /* We have to byteswap if the SPI bus is limited to 8b operation */
- if (self->func->bits_per_word == 8)
-#endif
- {
- uint16_t *buf = (uint16_t *)src;
- for (i = 0; i < ((count + 1) >> 1); i++)
- buf[i] = swab16(buf[i]);
- }
- return rval;
-}
-
-static void cw1200_spi_lock(struct hwbus_priv *self)
-{
- unsigned long flags;
-
- DECLARE_WAITQUEUE(wait, current);
-
- might_sleep();
-
- add_wait_queue(&self->wq, &wait);
- spin_lock_irqsave(&self->lock, flags);
- while (1) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- if (!self->claimed)
- break;
- spin_unlock_irqrestore(&self->lock, flags);
- schedule();
- spin_lock_irqsave(&self->lock, flags);
- }
- set_current_state(TASK_RUNNING);
- self->claimed = 1;
- spin_unlock_irqrestore(&self->lock, flags);
- remove_wait_queue(&self->wq, &wait);
-
- return;
-}
-
-static void cw1200_spi_unlock(struct hwbus_priv *self)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&self->lock, flags);
- self->claimed = 0;
- spin_unlock_irqrestore(&self->lock, flags);
- wake_up(&self->wq);
-
- return;
-}
-
-static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id)
-{
- struct hwbus_priv *self = dev_id;
-
- if (self->core) {
- cw1200_spi_lock(self);
- cw1200_irq_handler(self->core);
- cw1200_spi_unlock(self);
- return IRQ_HANDLED;
- } else {
- return IRQ_NONE;
- }
-}
-
-static int cw1200_spi_irq_subscribe(struct hwbus_priv *self)
-{
- int ret;
-
- pr_debug("SW IRQ subscribe\n");
-
- ret = request_threaded_irq(self->func->irq, NULL,
- cw1200_spi_irq_handler,
- IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
- "cw1200_wlan_irq", self);
- if (WARN_ON(ret < 0))
- goto exit;
-
- ret = enable_irq_wake(self->func->irq);
- if (WARN_ON(ret))
- goto free_irq;
-
- return 0;
-
-free_irq:
- free_irq(self->func->irq, self);
-exit:
- return ret;
-}
-
-static int cw1200_spi_irq_unsubscribe(struct hwbus_priv *self)
-{
- int ret = 0;
-
- pr_debug("SW IRQ unsubscribe\n");
- disable_irq_wake(self->func->irq);
- free_irq(self->func->irq, self);
-
- return ret;
-}
-
-static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
-{
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 0);
- msleep(30); /* Min is 2 * CLK32K cycles */
- gpio_free(pdata->reset);
- }
-
- if (pdata->power_ctrl)
- pdata->power_ctrl(pdata, false);
- if (pdata->clk_ctrl)
- pdata->clk_ctrl(pdata, false);
-
- return 0;
-}
-
-static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
-{
- /* Ensure I/Os are pulled low */
- if (pdata->reset) {
- gpio_request(pdata->reset, "cw1200_wlan_reset");
- gpio_direction_output(pdata->reset, 0);
- }
- if (pdata->powerup) {
- gpio_request(pdata->powerup, "cw1200_wlan_powerup");
- gpio_direction_output(pdata->powerup, 0);
- }
- if (pdata->reset || pdata->powerup)
- msleep(10); /* Settle time? */
-
- /* Enable 3v3 and 1v8 to hardware */
- if (pdata->power_ctrl) {
- if (pdata->power_ctrl(pdata, true)) {
- pr_err("power_ctrl() failed!\n");
- return -1;
- }
- }
-
- /* Enable CLK32K */
- if (pdata->clk_ctrl) {
- if (pdata->clk_ctrl(pdata, true)) {
- pr_err("clk_ctrl() failed!\n");
- return -1;
- }
- msleep(10); /* Delay until clock is stable for 2 cycles */
- }
-
- /* Enable POWERUP signal */
- if (pdata->powerup) {
- gpio_set_value(pdata->powerup, 1);
- msleep(250); /* or more..? */
- }
- /* Enable RSTn signal */
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 1);
- msleep(50); /* Or more..? */
- }
- return 0;
-}
-
-static size_t cw1200_spi_align_size(struct hwbus_priv *self, size_t size)
-{
- return size & 1 ? size + 1 : size;
-}
-
-static int cw1200_spi_pm(struct hwbus_priv *self, bool suspend)
-{
- return irq_set_irq_wake(self->func->irq, suspend);
-}
-
-static struct hwbus_ops cw1200_spi_hwbus_ops = {
- .hwbus_memcpy_fromio = cw1200_spi_memcpy_fromio,
- .hwbus_memcpy_toio = cw1200_spi_memcpy_toio,
- .lock = cw1200_spi_lock,
- .unlock = cw1200_spi_unlock,
- .align_size = cw1200_spi_align_size,
- .power_mgmt = cw1200_spi_pm,
-};
-
-/* Probe Function to be called by SPI stack when device is discovered */
-static int cw1200_spi_probe(struct spi_device *func)
-{
- const struct cw1200_platform_data_spi *plat_data =
- dev_get_platdata(&func->dev);
- struct hwbus_priv *self;
- int status;
-
- /* Sanity check speed */
- if (func->max_speed_hz > 52000000)
- func->max_speed_hz = 52000000;
- if (func->max_speed_hz < 1000000)
- func->max_speed_hz = 1000000;
-
- /* Fix up transfer size */
- if (plat_data->spi_bits_per_word)
- func->bits_per_word = plat_data->spi_bits_per_word;
- if (!func->bits_per_word)
- func->bits_per_word = 16;
-
- /* And finally.. */
- func->mode = SPI_MODE_0;
-
- pr_info("cw1200_wlan_spi: Probe called (CS %d M %d BPW %d CLK %d)\n",
- func->chip_select, func->mode, func->bits_per_word,
- func->max_speed_hz);
-
- if (cw1200_spi_on(plat_data)) {
- pr_err("spi_on() failed!\n");
- return -1;
- }
-
- if (spi_setup(func)) {
- pr_err("spi_setup() failed!\n");
- return -1;
- }
-
- self = devm_kzalloc(&func->dev, sizeof(*self), GFP_KERNEL);
- if (!self) {
- pr_err("Can't allocate SPI hwbus_priv.");
- return -ENOMEM;
- }
-
- self->pdata = plat_data;
- self->func = func;
- spin_lock_init(&self->lock);
-
- spi_set_drvdata(func, self);
-
- init_waitqueue_head(&self->wq);
-
- status = cw1200_spi_irq_subscribe(self);
-
- status = cw1200_core_probe(&cw1200_spi_hwbus_ops,
- self, &func->dev, &self->core,
- self->pdata->ref_clk,
- self->pdata->macaddr,
- self->pdata->sdd_file,
- self->pdata->have_5ghz);
-
- if (status) {
- cw1200_spi_irq_unsubscribe(self);
- cw1200_spi_off(plat_data);
- }
-
- return status;
-}
-
-/* Disconnect Function to be called by SPI stack when device is disconnected */
-static int cw1200_spi_disconnect(struct spi_device *func)
-{
- struct hwbus_priv *self = spi_get_drvdata(func);
-
- if (self) {
- cw1200_spi_irq_unsubscribe(self);
- if (self->core) {
- cw1200_core_release(self->core);
- self->core = NULL;
- }
- }
- cw1200_spi_off(dev_get_platdata(&func->dev));
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int cw1200_spi_suspend(struct device *dev)
-{
- struct hwbus_priv *self = spi_get_drvdata(to_spi_device(dev));
-
- if (!cw1200_can_suspend(self->core))
- return -EAGAIN;
-
- /* XXX notify host that we have to keep CW1200 powered on? */
- return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(cw1200_pm_ops, cw1200_spi_suspend, NULL);
-
-#endif
-
-static struct spi_driver spi_driver = {
- .probe = cw1200_spi_probe,
- .remove = cw1200_spi_disconnect,
- .driver = {
- .name = "cw1200_wlan_spi",
-#ifdef CONFIG_PM
- .pm = &cw1200_pm_ops,
-#endif
- },
-};
-
-module_spi_driver(spi_driver);
+++ /dev/null
-/*
- * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
- * DebugFS code
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include "cw1200.h"
-#include "debug.h"
-#include "fwio.h"
-
-/* join_status */
-static const char * const cw1200_debug_join_status[] = {
- "passive",
- "monitor",
- "station (joining)",
- "station (not authenticated yet)",
- "station",
- "adhoc",
- "access point",
-};
-
-/* WSM_JOIN_PREAMBLE_... */
-static const char * const cw1200_debug_preamble[] = {
- "long",
- "short",
- "long on 1 and 2 Mbps",
-};
-
-
-static const char * const cw1200_debug_link_id[] = {
- "OFF",
- "REQ",
- "SOFT",
- "HARD",
- "RESET",
- "RESET_REMAP",
-};
-
-static const char *cw1200_debug_mode(int mode)
-{
- switch (mode) {
- case NL80211_IFTYPE_UNSPECIFIED:
- return "unspecified";
- case NL80211_IFTYPE_MONITOR:
- return "monitor";
- case NL80211_IFTYPE_STATION:
- return "station";
- case NL80211_IFTYPE_ADHOC:
- return "adhoc";
- case NL80211_IFTYPE_MESH_POINT:
- return "mesh point";
- case NL80211_IFTYPE_AP:
- return "access point";
- case NL80211_IFTYPE_P2P_CLIENT:
- return "p2p client";
- case NL80211_IFTYPE_P2P_GO:
- return "p2p go";
- default:
- return "unsupported";
- }
-}
-
-static void cw1200_queue_status_show(struct seq_file *seq,
- struct cw1200_queue *q)
-{
- int i;
- seq_printf(seq, "Queue %d:\n", q->queue_id);
- seq_printf(seq, " capacity: %zu\n", q->capacity);
- seq_printf(seq, " queued: %zu\n", q->num_queued);
- seq_printf(seq, " pending: %zu\n", q->num_pending);
- seq_printf(seq, " sent: %zu\n", q->num_sent);
- seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no");
- seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no");
- seq_puts(seq, " link map: 0-> ");
- for (i = 0; i < q->stats->map_capacity; ++i)
- seq_printf(seq, "%.2d ", q->link_map_cache[i]);
- seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
-}
-
-static void cw1200_debug_print_map(struct seq_file *seq,
- struct cw1200_common *priv,
- const char *label,
- u32 map)
-{
- int i;
- seq_printf(seq, "%s0-> ", label);
- for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
- seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
- seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
-}
-
-static int cw1200_status_show(struct seq_file *seq, void *v)
-{
- int i;
- struct list_head *item;
- struct cw1200_common *priv = seq->private;
- struct cw1200_debug_priv *d = priv->debug;
-
- seq_puts(seq, "CW1200 Wireless LAN driver status\n");
- seq_printf(seq, "Hardware: %d.%d\n",
- priv->wsm_caps.hw_id,
- priv->wsm_caps.hw_subid);
- seq_printf(seq, "Firmware: %s %d.%d\n",
- cw1200_fw_types[priv->wsm_caps.fw_type],
- priv->wsm_caps.fw_ver,
- priv->wsm_caps.fw_build);
- seq_printf(seq, "FW API: %d\n",
- priv->wsm_caps.fw_api);
- seq_printf(seq, "FW caps: 0x%.4X\n",
- priv->wsm_caps.fw_cap);
- seq_printf(seq, "FW label: '%s'\n",
- priv->wsm_caps.fw_label);
- seq_printf(seq, "Mode: %s%s\n",
- cw1200_debug_mode(priv->mode),
- priv->listening ? " (listening)" : "");
- seq_printf(seq, "Join state: %s\n",
- cw1200_debug_join_status[priv->join_status]);
- if (priv->channel)
- seq_printf(seq, "Channel: %d%s\n",
- priv->channel->hw_value,
- priv->channel_switch_in_progress ?
- " (switching)" : "");
- if (priv->rx_filter.promiscuous)
- seq_puts(seq, "Filter: promisc\n");
- else if (priv->rx_filter.fcs)
- seq_puts(seq, "Filter: fcs\n");
- if (priv->rx_filter.bssid)
- seq_puts(seq, "Filter: bssid\n");
- if (!priv->disable_beacon_filter)
- seq_puts(seq, "Filter: beacons\n");
-
- if (priv->enable_beacon ||
- priv->mode == NL80211_IFTYPE_AP ||
- priv->mode == NL80211_IFTYPE_ADHOC ||
- priv->mode == NL80211_IFTYPE_MESH_POINT ||
- priv->mode == NL80211_IFTYPE_P2P_GO)
- seq_printf(seq, "Beaconing: %s\n",
- priv->enable_beacon ?
- "enabled" : "disabled");
-
- for (i = 0; i < 4; ++i)
- seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i,
- priv->edca.params[i].cwmin,
- priv->edca.params[i].cwmax,
- priv->edca.params[i].aifns,
- priv->edca.params[i].txop_limit,
- priv->edca.params[i].max_rx_lifetime);
-
- if (priv->join_status == CW1200_JOIN_STATUS_STA) {
- static const char *pm_mode = "unknown";
- switch (priv->powersave_mode.mode) {
- case WSM_PSM_ACTIVE:
- pm_mode = "off";
- break;
- case WSM_PSM_PS:
- pm_mode = "on";
- break;
- case WSM_PSM_FAST_PS:
- pm_mode = "dynamic";
- break;
- }
- seq_printf(seq, "Preamble: %s\n",
- cw1200_debug_preamble[priv->association_mode.preamble]);
- seq_printf(seq, "AMPDU spcn: %d\n",
- priv->association_mode.mpdu_start_spacing);
- seq_printf(seq, "Basic rate: 0x%.8X\n",
- le32_to_cpu(priv->association_mode.basic_rate_set));
- seq_printf(seq, "Bss lost: %d beacons\n",
- priv->bss_params.beacon_lost_count);
- seq_printf(seq, "AID: %d\n",
- priv->bss_params.aid);
- seq_printf(seq, "Rates: 0x%.8X\n",
- priv->bss_params.operational_rate_set);
- seq_printf(seq, "Powersave: %s\n", pm_mode);
- }
- seq_printf(seq, "HT: %s\n",
- cw1200_is_ht(&priv->ht_info) ? "on" : "off");
- if (cw1200_is_ht(&priv->ht_info)) {
- seq_printf(seq, "Greenfield: %s\n",
- cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
- seq_printf(seq, "AMPDU dens: %d\n",
- cw1200_ht_ampdu_density(&priv->ht_info));
- }
- seq_printf(seq, "RSSI thold: %d\n",
- priv->cqm_rssi_thold);
- seq_printf(seq, "RSSI hyst: %d\n",
- priv->cqm_rssi_hyst);
- seq_printf(seq, "Long retr: %d\n",
- priv->long_frame_max_tx_count);
- seq_printf(seq, "Short retr: %d\n",
- priv->short_frame_max_tx_count);
- spin_lock_bh(&priv->tx_policy_cache.lock);
- i = 0;
- list_for_each(item, &priv->tx_policy_cache.used)
- ++i;
- spin_unlock_bh(&priv->tx_policy_cache.lock);
- seq_printf(seq, "RC in use: %d\n", i);
-
- seq_puts(seq, "\n");
- for (i = 0; i < 4; ++i) {
- cw1200_queue_status_show(seq, &priv->tx_queue[i]);
- seq_puts(seq, "\n");
- }
-
- cw1200_debug_print_map(seq, priv, "Link map: ",
- priv->link_id_map);
- cw1200_debug_print_map(seq, priv, "Asleep map: ",
- priv->sta_asleep_mask);
- cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
- priv->pspoll_mask);
-
- seq_puts(seq, "\n");
-
- for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
- if (priv->link_id_db[i].status) {
- seq_printf(seq, "Link %d: %s, %pM\n",
- i + 1,
- cw1200_debug_link_id[priv->link_id_db[i].status],
- priv->link_id_db[i].mac);
- }
- }
-
- seq_puts(seq, "\n");
-
- seq_printf(seq, "BH status: %s\n",
- atomic_read(&priv->bh_term) ? "terminated" : "alive");
- seq_printf(seq, "Pending RX: %d\n",
- atomic_read(&priv->bh_rx));
- seq_printf(seq, "Pending TX: %d\n",
- atomic_read(&priv->bh_tx));
- if (priv->bh_error)
- seq_printf(seq, "BH errcode: %d\n",
- priv->bh_error);
- seq_printf(seq, "TX bufs: %d x %d bytes\n",
- priv->wsm_caps.input_buffers,
- priv->wsm_caps.input_buffer_size);
- seq_printf(seq, "Used bufs: %d\n",
- priv->hw_bufs_used);
- seq_printf(seq, "Powermgmt: %s\n",
- priv->powersave_enabled ? "on" : "off");
- seq_printf(seq, "Device: %s\n",
- priv->device_can_sleep ? "asleep" : "awake");
-
- spin_lock(&priv->wsm_cmd.lock);
- seq_printf(seq, "WSM status: %s\n",
- priv->wsm_cmd.done ? "idle" : "active");
- seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n",
- priv->wsm_cmd.cmd, priv->wsm_cmd.len);
- seq_printf(seq, "WSM retval: %d\n",
- priv->wsm_cmd.ret);
- spin_unlock(&priv->wsm_cmd.lock);
-
- seq_printf(seq, "Datapath: %s\n",
- atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
- if (atomic_read(&priv->tx_lock))
- seq_printf(seq, "TXlock cnt: %d\n",
- atomic_read(&priv->tx_lock));
-
- seq_printf(seq, "TXed: %d\n",
- d->tx);
- seq_printf(seq, "AGG TXed: %d\n",
- d->tx_agg);
- seq_printf(seq, "MULTI TXed: %d (%d)\n",
- d->tx_multi, d->tx_multi_frames);
- seq_printf(seq, "RXed: %d\n",
- d->rx);
- seq_printf(seq, "AGG RXed: %d\n",
- d->rx_agg);
- seq_printf(seq, "TX miss: %d\n",
- d->tx_cache_miss);
- seq_printf(seq, "TX align: %d\n",
- d->tx_align);
- seq_printf(seq, "TX burst: %d\n",
- d->tx_burst);
- seq_printf(seq, "TX TTL: %d\n",
- d->tx_ttl);
- seq_printf(seq, "Scan: %s\n",
- atomic_read(&priv->scan.in_progress) ? "active" : "idle");
-
- return 0;
-}
-
-static int cw1200_status_open(struct inode *inode, struct file *file)
-{
- return single_open(file, &cw1200_status_show,
- inode->i_private);
-}
-
-static const struct file_operations fops_status = {
- .open = cw1200_status_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static int cw1200_counters_show(struct seq_file *seq, void *v)
-{
- int ret;
- struct cw1200_common *priv = seq->private;
- struct wsm_mib_counters_table counters;
-
- ret = wsm_get_counters_table(priv, &counters);
- if (ret)
- return ret;
-
-#define PUT_COUNTER(tab, name) \
- seq_printf(seq, "%s:" tab "%d\n", #name, \
- __le32_to_cpu(counters.name))
-
- PUT_COUNTER("\t\t", plcp_errors);
- PUT_COUNTER("\t\t", fcs_errors);
- PUT_COUNTER("\t\t", tx_packets);
- PUT_COUNTER("\t\t", rx_packets);
- PUT_COUNTER("\t\t", rx_packet_errors);
- PUT_COUNTER("\t", rx_decryption_failures);
- PUT_COUNTER("\t\t", rx_mic_failures);
- PUT_COUNTER("\t", rx_no_key_failures);
- PUT_COUNTER("\t", tx_multicast_frames);
- PUT_COUNTER("\t", tx_frames_success);
- PUT_COUNTER("\t", tx_frame_failures);
- PUT_COUNTER("\t", tx_frames_retried);
- PUT_COUNTER("\t", tx_frames_multi_retried);
- PUT_COUNTER("\t", rx_frame_duplicates);
- PUT_COUNTER("\t\t", rts_success);
- PUT_COUNTER("\t\t", rts_failures);
- PUT_COUNTER("\t\t", ack_failures);
- PUT_COUNTER("\t", rx_multicast_frames);
- PUT_COUNTER("\t", rx_frames_success);
- PUT_COUNTER("\t", rx_cmac_icv_errors);
- PUT_COUNTER("\t\t", rx_cmac_replays);
- PUT_COUNTER("\t", rx_mgmt_ccmp_replays);
-
-#undef PUT_COUNTER
-
- return 0;
-}
-
-static int cw1200_counters_open(struct inode *inode, struct file *file)
-{
- return single_open(file, &cw1200_counters_show,
- inode->i_private);
-}
-
-static const struct file_operations fops_counters = {
- .open = cw1200_counters_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static ssize_t cw1200_wsm_dumps(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- struct cw1200_common *priv = file->private_data;
- char buf[1];
-
- if (!count)
- return -EINVAL;
- if (copy_from_user(buf, user_buf, 1))
- return -EFAULT;
-
- if (buf[0] == '1')
- priv->wsm_enable_wsm_dumps = 1;
- else
- priv->wsm_enable_wsm_dumps = 0;
-
- return count;
-}
-
-static const struct file_operations fops_wsm_dumps = {
- .open = simple_open,
- .write = cw1200_wsm_dumps,
- .llseek = default_llseek,
-};
-
-int cw1200_debug_init(struct cw1200_common *priv)
-{
- int ret = -ENOMEM;
- struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
- GFP_KERNEL);
- priv->debug = d;
- if (!d)
- return ret;
-
- d->debugfs_phy = debugfs_create_dir("cw1200",
- priv->hw->wiphy->debugfsdir);
- if (!d->debugfs_phy)
- goto err;
-
- if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
- priv, &fops_status))
- goto err;
-
- if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
- priv, &fops_counters))
- goto err;
-
- if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
- priv, &fops_wsm_dumps))
- goto err;
-
- return 0;
-
-err:
- priv->debug = NULL;
- debugfs_remove_recursive(d->debugfs_phy);
- kfree(d);
- return ret;
-}
-
-void cw1200_debug_release(struct cw1200_common *priv)
-{
- struct cw1200_debug_priv *d = priv->debug;
- if (d) {
- debugfs_remove_recursive(d->debugfs_phy);
- priv->debug = NULL;
- kfree(d);
- }
-}
+++ /dev/null
-/*
- * DebugFS code for ST-Ericsson CW1200 mac80211 driver
- *
- * Copyright (c) 2011, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_DEBUG_H_INCLUDED
-#define CW1200_DEBUG_H_INCLUDED
-
-struct cw1200_debug_priv {
- struct dentry *debugfs_phy;
- int tx;
- int tx_agg;
- int rx;
- int rx_agg;
- int tx_multi;
- int tx_multi_frames;
- int tx_cache_miss;
- int tx_align;
- int tx_ttl;
- int tx_burst;
- int ba_cnt;
- int ba_acc;
- int ba_cnt_rx;
- int ba_acc_rx;
-};
-
-int cw1200_debug_init(struct cw1200_common *priv);
-void cw1200_debug_release(struct cw1200_common *priv);
-
-static inline void cw1200_debug_txed(struct cw1200_common *priv)
-{
- ++priv->debug->tx;
-}
-
-static inline void cw1200_debug_txed_agg(struct cw1200_common *priv)
-{
- ++priv->debug->tx_agg;
-}
-
-static inline void cw1200_debug_txed_multi(struct cw1200_common *priv,
- int count)
-{
- ++priv->debug->tx_multi;
- priv->debug->tx_multi_frames += count;
-}
-
-static inline void cw1200_debug_rxed(struct cw1200_common *priv)
-{
- ++priv->debug->rx;
-}
-
-static inline void cw1200_debug_rxed_agg(struct cw1200_common *priv)
-{
- ++priv->debug->rx_agg;
-}
-
-static inline void cw1200_debug_tx_cache_miss(struct cw1200_common *priv)
-{
- ++priv->debug->tx_cache_miss;
-}
-
-static inline void cw1200_debug_tx_align(struct cw1200_common *priv)
-{
- ++priv->debug->tx_align;
-}
-
-static inline void cw1200_debug_tx_ttl(struct cw1200_common *priv)
-{
- ++priv->debug->tx_ttl;
-}
-
-static inline void cw1200_debug_tx_burst(struct cw1200_common *priv)
-{
- ++priv->debug->tx_burst;
-}
-
-static inline void cw1200_debug_ba(struct cw1200_common *priv,
- int ba_cnt, int ba_acc,
- int ba_cnt_rx, int ba_acc_rx)
-{
- priv->debug->ba_cnt = ba_cnt;
- priv->debug->ba_acc = ba_acc;
- priv->debug->ba_cnt_rx = ba_cnt_rx;
- priv->debug->ba_acc_rx = ba_acc_rx;
-}
-
-#endif /* CW1200_DEBUG_H_INCLUDED */
+++ /dev/null
-/*
- * Firmware I/O code for mac80211 ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * ST-Ericsson UMAC CW1200 driver which is
- * Copyright (c) 2010, ST-Ericsson
- * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/firmware.h>
-
-#include "cw1200.h"
-#include "fwio.h"
-#include "hwio.h"
-#include "hwbus.h"
-#include "bh.h"
-
-static int cw1200_get_hw_type(u32 config_reg_val, int *major_revision)
-{
- int hw_type = -1;
- u32 silicon_type = (config_reg_val >> 24) & 0x7;
- u32 silicon_vers = (config_reg_val >> 31) & 0x1;
-
- switch (silicon_type) {
- case 0x00:
- *major_revision = 1;
- hw_type = HIF_9000_SILICON_VERSATILE;
- break;
- case 0x01:
- case 0x02: /* CW1x00 */
- case 0x04: /* CW1x60 */
- *major_revision = silicon_type;
- if (silicon_vers)
- hw_type = HIF_8601_VERSATILE;
- else
- hw_type = HIF_8601_SILICON;
- break;
- default:
- break;
- }
-
- return hw_type;
-}
-
-static int cw1200_load_firmware_cw1200(struct cw1200_common *priv)
-{
- int ret, block, num_blocks;
- unsigned i;
- u32 val32;
- u32 put = 0, get = 0;
- u8 *buf = NULL;
- const char *fw_path;
- const struct firmware *firmware = NULL;
-
- /* Macroses are local. */
-#define APB_WRITE(reg, val) \
- do { \
- ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \
- if (ret < 0) \
- goto exit; \
- } while (0)
-#define APB_WRITE2(reg, val) \
- do { \
- ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \
- if (ret < 0) \
- goto free_buffer; \
- } while (0)
-#define APB_READ(reg, val) \
- do { \
- ret = cw1200_apb_read_32(priv, CW1200_APB(reg), &(val)); \
- if (ret < 0) \
- goto free_buffer; \
- } while (0)
-#define REG_WRITE(reg, val) \
- do { \
- ret = cw1200_reg_write_32(priv, (reg), (val)); \
- if (ret < 0) \
- goto exit; \
- } while (0)
-#define REG_READ(reg, val) \
- do { \
- ret = cw1200_reg_read_32(priv, (reg), &(val)); \
- if (ret < 0) \
- goto exit; \
- } while (0)
-
- switch (priv->hw_revision) {
- case CW1200_HW_REV_CUT10:
- fw_path = FIRMWARE_CUT10;
- if (!priv->sdd_path)
- priv->sdd_path = SDD_FILE_10;
- break;
- case CW1200_HW_REV_CUT11:
- fw_path = FIRMWARE_CUT11;
- if (!priv->sdd_path)
- priv->sdd_path = SDD_FILE_11;
- break;
- case CW1200_HW_REV_CUT20:
- fw_path = FIRMWARE_CUT20;
- if (!priv->sdd_path)
- priv->sdd_path = SDD_FILE_20;
- break;
- case CW1200_HW_REV_CUT22:
- fw_path = FIRMWARE_CUT22;
- if (!priv->sdd_path)
- priv->sdd_path = SDD_FILE_22;
- break;
- case CW1X60_HW_REV:
- fw_path = FIRMWARE_CW1X60;
- if (!priv->sdd_path)
- priv->sdd_path = SDD_FILE_CW1X60;
- break;
- default:
- pr_err("Invalid silicon revision %d.\n", priv->hw_revision);
- return -EINVAL;
- }
-
- /* Initialize common registers */
- APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, DOWNLOAD_ARE_YOU_HERE);
- APB_WRITE(DOWNLOAD_PUT_REG, 0);
- APB_WRITE(DOWNLOAD_GET_REG, 0);
- APB_WRITE(DOWNLOAD_STATUS_REG, DOWNLOAD_PENDING);
- APB_WRITE(DOWNLOAD_FLAGS_REG, 0);
-
- /* Write the NOP Instruction */
- REG_WRITE(ST90TDS_SRAM_BASE_ADDR_REG_ID, 0xFFF20000);
- REG_WRITE(ST90TDS_AHB_DPORT_REG_ID, 0xEAFFFFFE);
-
- /* Release CPU from RESET */
- REG_READ(ST90TDS_CONFIG_REG_ID, val32);
- val32 &= ~ST90TDS_CONFIG_CPU_RESET_BIT;
- REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
-
- /* Enable Clock */
- val32 &= ~ST90TDS_CONFIG_CPU_CLK_DIS_BIT;
- REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
-
- /* Load a firmware file */
- ret = request_firmware(&firmware, fw_path, priv->pdev);
- if (ret) {
- pr_err("Can't load firmware file %s.\n", fw_path);
- goto exit;
- }
-
- buf = kmalloc(DOWNLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
- if (!buf) {
- pr_err("Can't allocate firmware load buffer.\n");
- ret = -ENOMEM;
- goto firmware_release;
- }
-
- /* Check if the bootloader is ready */
- for (i = 0; i < 100; i += 1 + i / 2) {
- APB_READ(DOWNLOAD_IMAGE_SIZE_REG, val32);
- if (val32 == DOWNLOAD_I_AM_HERE)
- break;
- mdelay(i);
- } /* End of for loop */
-
- if (val32 != DOWNLOAD_I_AM_HERE) {
- pr_err("Bootloader is not ready.\n");
- ret = -ETIMEDOUT;
- goto free_buffer;
- }
-
- /* Calculcate number of download blocks */
- num_blocks = (firmware->size - 1) / DOWNLOAD_BLOCK_SIZE + 1;
-
- /* Updating the length in Download Ctrl Area */
- val32 = firmware->size; /* Explicit cast from size_t to u32 */
- APB_WRITE2(DOWNLOAD_IMAGE_SIZE_REG, val32);
-
- /* Firmware downloading loop */
- for (block = 0; block < num_blocks; block++) {
- size_t tx_size;
- size_t block_size;
-
- /* check the download status */
- APB_READ(DOWNLOAD_STATUS_REG, val32);
- if (val32 != DOWNLOAD_PENDING) {
- pr_err("Bootloader reported error %d.\n", val32);
- ret = -EIO;
- goto free_buffer;
- }
-
- /* loop until put - get <= 24K */
- for (i = 0; i < 100; i++) {
- APB_READ(DOWNLOAD_GET_REG, get);
- if ((put - get) <=
- (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE))
- break;
- mdelay(i);
- }
-
- if ((put - get) > (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE)) {
- pr_err("Timeout waiting for FIFO.\n");
- ret = -ETIMEDOUT;
- goto free_buffer;
- }
-
- /* calculate the block size */
- tx_size = block_size = min_t(size_t, firmware->size - put,
- DOWNLOAD_BLOCK_SIZE);
-
- memcpy(buf, &firmware->data[put], block_size);
- if (block_size < DOWNLOAD_BLOCK_SIZE) {
- memset(&buf[block_size], 0,
- DOWNLOAD_BLOCK_SIZE - block_size);
- tx_size = DOWNLOAD_BLOCK_SIZE;
- }
-
- /* send the block to sram */
- ret = cw1200_apb_write(priv,
- CW1200_APB(DOWNLOAD_FIFO_OFFSET +
- (put & (DOWNLOAD_FIFO_SIZE - 1))),
- buf, tx_size);
- if (ret < 0) {
- pr_err("Can't write firmware block @ %d!\n",
- put & (DOWNLOAD_FIFO_SIZE - 1));
- goto free_buffer;
- }
-
- /* update the put register */
- put += block_size;
- APB_WRITE2(DOWNLOAD_PUT_REG, put);
- } /* End of firmware download loop */
-
- /* Wait for the download completion */
- for (i = 0; i < 300; i += 1 + i / 2) {
- APB_READ(DOWNLOAD_STATUS_REG, val32);
- if (val32 != DOWNLOAD_PENDING)
- break;
- mdelay(i);
- }
- if (val32 != DOWNLOAD_SUCCESS) {
- pr_err("Wait for download completion failed: 0x%.8X\n", val32);
- ret = -ETIMEDOUT;
- goto free_buffer;
- } else {
- pr_info("Firmware download completed.\n");
- ret = 0;
- }
-
-free_buffer:
- kfree(buf);
-firmware_release:
- release_firmware(firmware);
-exit:
- return ret;
-
-#undef APB_WRITE
-#undef APB_WRITE2
-#undef APB_READ
-#undef REG_WRITE
-#undef REG_READ
-}
-
-
-static int config_reg_read(struct cw1200_common *priv, u32 *val)
-{
- switch (priv->hw_type) {
- case HIF_9000_SILICON_VERSATILE: {
- u16 val16;
- int ret = cw1200_reg_read_16(priv,
- ST90TDS_CONFIG_REG_ID,
- &val16);
- if (ret < 0)
- return ret;
- *val = val16;
- return 0;
- }
- case HIF_8601_VERSATILE:
- case HIF_8601_SILICON:
- default:
- cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, val);
- break;
- }
- return 0;
-}
-
-static int config_reg_write(struct cw1200_common *priv, u32 val)
-{
- switch (priv->hw_type) {
- case HIF_9000_SILICON_VERSATILE:
- return cw1200_reg_write_16(priv,
- ST90TDS_CONFIG_REG_ID,
- (u16)val);
- case HIF_8601_VERSATILE:
- case HIF_8601_SILICON:
- default:
- return cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val);
- }
- return 0;
-}
-
-int cw1200_load_firmware(struct cw1200_common *priv)
-{
- int ret;
- int i;
- u32 val32;
- u16 val16;
- int major_revision = -1;
-
- /* Read CONFIG Register */
- ret = cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- goto out;
- }
-
- if (val32 == 0 || val32 == 0xffffffff) {
- pr_err("Bad config register value (0x%08x)\n", val32);
- ret = -EIO;
- goto out;
- }
-
- priv->hw_type = cw1200_get_hw_type(val32, &major_revision);
- if (priv->hw_type < 0) {
- pr_err("Can't deduce hardware type.\n");
- ret = -ENOTSUPP;
- goto out;
- }
-
- /* Set DPLL Reg value, and read back to confirm writes work */
- ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
- cw1200_dpll_from_clk(priv->hw_refclk));
- if (ret < 0) {
- pr_err("Can't write DPLL register.\n");
- goto out;
- }
-
- msleep(20);
-
- ret = cw1200_reg_read_32(priv,
- ST90TDS_TSET_GEN_R_W_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't read DPLL register.\n");
- goto out;
- }
-
- if (val32 != cw1200_dpll_from_clk(priv->hw_refclk)) {
- pr_err("Unable to initialise DPLL register. Wrote 0x%.8X, Read 0x%.8X.\n",
- cw1200_dpll_from_clk(priv->hw_refclk), val32);
- ret = -EIO;
- goto out;
- }
-
- /* Set wakeup bit in device */
- ret = cw1200_reg_read_16(priv, ST90TDS_CONTROL_REG_ID, &val16);
- if (ret < 0) {
- pr_err("set_wakeup: can't read control register.\n");
- goto out;
- }
-
- ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
- val16 | ST90TDS_CONT_WUP_BIT);
- if (ret < 0) {
- pr_err("set_wakeup: can't write control register.\n");
- goto out;
- }
-
- /* Wait for wakeup */
- for (i = 0; i < 300; i += (1 + i / 2)) {
- ret = cw1200_reg_read_16(priv,
- ST90TDS_CONTROL_REG_ID, &val16);
- if (ret < 0) {
- pr_err("wait_for_wakeup: can't read control register.\n");
- goto out;
- }
-
- if (val16 & ST90TDS_CONT_RDY_BIT)
- break;
-
- msleep(i);
- }
-
- if ((val16 & ST90TDS_CONT_RDY_BIT) == 0) {
- pr_err("wait_for_wakeup: device is not responding.\n");
- ret = -ETIMEDOUT;
- goto out;
- }
-
- switch (major_revision) {
- case 1:
- /* CW1200 Hardware detection logic : Check for CUT1.1 */
- ret = cw1200_ahb_read_32(priv, CW1200_CUT_ID_ADDR, &val32);
- if (ret) {
- pr_err("HW detection: can't read CUT ID.\n");
- goto out;
- }
-
- switch (val32) {
- case CW1200_CUT_11_ID_STR:
- pr_info("CW1x00 Cut 1.1 silicon detected.\n");
- priv->hw_revision = CW1200_HW_REV_CUT11;
- break;
- default:
- pr_info("CW1x00 Cut 1.0 silicon detected.\n");
- priv->hw_revision = CW1200_HW_REV_CUT10;
- break;
- }
-
- /* According to ST-E, CUT<2.0 has busted BA TID0-3.
- Just disable it entirely...
- */
- priv->ba_rx_tid_mask = 0;
- priv->ba_tx_tid_mask = 0;
- break;
- case 2: {
- u32 ar1, ar2, ar3;
- ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR, &ar1);
- if (ret) {
- pr_err("(1) HW detection: can't read CUT ID\n");
- goto out;
- }
- ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 4, &ar2);
- if (ret) {
- pr_err("(2) HW detection: can't read CUT ID.\n");
- goto out;
- }
-
- ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 8, &ar3);
- if (ret) {
- pr_err("(3) HW detection: can't read CUT ID.\n");
- goto out;
- }
-
- if (ar1 == CW1200_CUT_22_ID_STR1 &&
- ar2 == CW1200_CUT_22_ID_STR2 &&
- ar3 == CW1200_CUT_22_ID_STR3) {
- pr_info("CW1x00 Cut 2.2 silicon detected.\n");
- priv->hw_revision = CW1200_HW_REV_CUT22;
- } else {
- pr_info("CW1x00 Cut 2.0 silicon detected.\n");
- priv->hw_revision = CW1200_HW_REV_CUT20;
- }
- break;
- }
- case 4:
- pr_info("CW1x60 silicon detected.\n");
- priv->hw_revision = CW1X60_HW_REV;
- break;
- default:
- pr_err("Unsupported silicon major revision %d.\n",
- major_revision);
- ret = -ENOTSUPP;
- goto out;
- }
-
- /* Checking for access mode */
- ret = config_reg_read(priv, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- goto out;
- }
-
- if (!(val32 & ST90TDS_CONFIG_ACCESS_MODE_BIT)) {
- pr_err("Device is already in QUEUE mode!\n");
- ret = -EINVAL;
- goto out;
- }
-
- switch (priv->hw_type) {
- case HIF_8601_SILICON:
- if (priv->hw_revision == CW1X60_HW_REV) {
- pr_err("Can't handle CW1160/1260 firmware load yet.\n");
- ret = -ENOTSUPP;
- goto out;
- }
- ret = cw1200_load_firmware_cw1200(priv);
- break;
- default:
- pr_err("Can't perform firmware load for hw type %d.\n",
- priv->hw_type);
- ret = -ENOTSUPP;
- goto out;
- }
- if (ret < 0) {
- pr_err("Firmware load error.\n");
- goto out;
- }
-
- /* Enable interrupt signalling */
- priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_irq_enable(priv, 1);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- if (ret < 0)
- goto unsubscribe;
-
- /* Configure device for MESSSAGE MODE */
- ret = config_reg_read(priv, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- goto unsubscribe;
- }
- ret = config_reg_write(priv, val32 & ~ST90TDS_CONFIG_ACCESS_MODE_BIT);
- if (ret < 0) {
- pr_err("Can't write config register.\n");
- goto unsubscribe;
- }
-
- /* Unless we read the CONFIG Register we are
- * not able to get an interrupt
- */
- mdelay(10);
- config_reg_read(priv, &val32);
-
-out:
- return ret;
-
-unsubscribe:
- /* Disable interrupt signalling */
- priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_irq_enable(priv, 0);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
+++ /dev/null
-/*
- * Firmware API for mac80211 ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * ST-Ericsson UMAC CW1200 driver which is
- * Copyright (c) 2010, ST-Ericsson
- * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef FWIO_H_INCLUDED
-#define FWIO_H_INCLUDED
-
-#define BOOTLOADER_CW1X60 "boot_cw1x60.bin"
-#define FIRMWARE_CW1X60 "wsm_cw1x60.bin"
-#define FIRMWARE_CUT22 "wsm_22.bin"
-#define FIRMWARE_CUT20 "wsm_20.bin"
-#define FIRMWARE_CUT11 "wsm_11.bin"
-#define FIRMWARE_CUT10 "wsm_10.bin"
-#define SDD_FILE_CW1X60 "sdd_cw1x60.bin"
-#define SDD_FILE_22 "sdd_22.bin"
-#define SDD_FILE_20 "sdd_20.bin"
-#define SDD_FILE_11 "sdd_11.bin"
-#define SDD_FILE_10 "sdd_10.bin"
-
-int cw1200_load_firmware(struct cw1200_common *priv);
-
-/* SDD definitions */
-#define SDD_PTA_CFG_ELT_ID 0xEB
-#define SDD_REFERENCE_FREQUENCY_ELT_ID 0xc5
-u32 cw1200_dpll_from_clk(u16 clk);
-
-#endif
+++ /dev/null
-/*
- * Common hwbus abstraction layer interface for cw1200 wireless driver
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_HWBUS_H
-#define CW1200_HWBUS_H
-
-struct hwbus_priv;
-
-void cw1200_irq_handler(struct cw1200_common *priv);
-
-/* This MUST be wrapped with hwbus_ops->lock/unlock! */
-int __cw1200_irq_enable(struct cw1200_common *priv, int enable);
-
-struct hwbus_ops {
- int (*hwbus_memcpy_fromio)(struct hwbus_priv *self, unsigned int addr,
- void *dst, int count);
- int (*hwbus_memcpy_toio)(struct hwbus_priv *self, unsigned int addr,
- const void *src, int count);
- void (*lock)(struct hwbus_priv *self);
- void (*unlock)(struct hwbus_priv *self);
- size_t (*align_size)(struct hwbus_priv *self, size_t size);
- int (*power_mgmt)(struct hwbus_priv *self, bool suspend);
-};
-
-#endif /* CW1200_HWBUS_H */
+++ /dev/null
-/*
- * Low-level device IO routines for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * ST-Ericsson UMAC CW1200 driver, which is
- * Copyright (c) 2010, ST-Ericsson
- * Author: Ajitpal Singh <ajitpal.singh@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-
-#include "cw1200.h"
-#include "hwio.h"
-#include "hwbus.h"
-
- /* Sdio addr is 4*spi_addr */
-#define SPI_REG_ADDR_TO_SDIO(spi_reg_addr) ((spi_reg_addr) << 2)
-#define SDIO_ADDR17BIT(buf_id, mpf, rfu, reg_id_ofs) \
- ((((buf_id) & 0x1F) << 7) \
- | (((mpf) & 1) << 6) \
- | (((rfu) & 1) << 5) \
- | (((reg_id_ofs) & 0x1F) << 0))
-#define MAX_RETRY 3
-
-
-static int __cw1200_reg_read(struct cw1200_common *priv, u16 addr,
- void *buf, size_t buf_len, int buf_id)
-{
- u16 addr_sdio;
- u32 sdio_reg_addr_17bit;
-
- /* Check if buffer is aligned to 4 byte boundary */
- if (WARN_ON(((unsigned long)buf & 3) && (buf_len > 4))) {
- pr_err("buffer is not aligned.\n");
- return -EINVAL;
- }
-
- /* Convert to SDIO Register Address */
- addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
- sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
-
- return priv->hwbus_ops->hwbus_memcpy_fromio(priv->hwbus_priv,
- sdio_reg_addr_17bit,
- buf, buf_len);
-}
-
-static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
- const void *buf, size_t buf_len, int buf_id)
-{
- u16 addr_sdio;
- u32 sdio_reg_addr_17bit;
-
- /* Convert to SDIO Register Address */
- addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
- sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
-
- return priv->hwbus_ops->hwbus_memcpy_toio(priv->hwbus_priv,
- sdio_reg_addr_17bit,
- buf, buf_len);
-}
-
-static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
- u16 addr, u32 *val)
-{
- __le32 tmp;
- int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
- *val = le32_to_cpu(tmp);
- return i;
-}
-
-static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
- u16 addr, u32 val)
-{
- __le32 tmp = cpu_to_le32(val);
- return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
-}
-
-static inline int __cw1200_reg_read_16(struct cw1200_common *priv,
- u16 addr, u16 *val)
-{
- __le16 tmp;
- int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
- *val = le16_to_cpu(tmp);
- return i;
-}
-
-static inline int __cw1200_reg_write_16(struct cw1200_common *priv,
- u16 addr, u16 val)
-{
- __le16 tmp = cpu_to_le16(val);
- return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
-}
-
-int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
- size_t buf_len)
-{
- int ret;
- priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
- size_t buf_len)
-{
- int ret;
- priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
-{
- int ret, retry = 1;
- int buf_id_rx = priv->buf_id_rx;
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
-
- while (retry <= MAX_RETRY) {
- ret = __cw1200_reg_read(priv,
- ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
- buf_len, buf_id_rx + 1);
- if (!ret) {
- buf_id_rx = (buf_id_rx + 1) & 3;
- priv->buf_id_rx = buf_id_rx;
- break;
- } else {
- retry++;
- mdelay(1);
- pr_err("error :[%d]\n", ret);
- }
- }
-
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_data_write(struct cw1200_common *priv, const void *buf,
- size_t buf_len)
-{
- int ret, retry = 1;
- int buf_id_tx = priv->buf_id_tx;
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
-
- while (retry <= MAX_RETRY) {
- ret = __cw1200_reg_write(priv,
- ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
- buf_len, buf_id_tx);
- if (!ret) {
- buf_id_tx = (buf_id_tx + 1) & 31;
- priv->buf_id_tx = buf_id_tx;
- break;
- } else {
- retry++;
- mdelay(1);
- pr_err("error :[%d]\n", ret);
- }
- }
-
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
- size_t buf_len, u32 prefetch, u16 port_addr)
-{
- u32 val32 = 0;
- int i, ret;
-
- if ((buf_len / 2) >= 0x1000) {
- pr_err("Can't read more than 0xfff words.\n");
- return -EINVAL;
- }
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
- /* Write address */
- ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
- if (ret < 0) {
- pr_err("Can't write address register.\n");
- goto out;
- }
-
- /* Read CONFIG Register Value - We will read 32 bits */
- ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- goto out;
- }
-
- /* Set PREFETCH bit */
- ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID,
- val32 | prefetch);
- if (ret < 0) {
- pr_err("Can't write prefetch bit.\n");
- goto out;
- }
-
- /* Check for PRE-FETCH bit to be cleared */
- for (i = 0; i < 20; i++) {
- ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't check prefetch bit.\n");
- goto out;
- }
- if (!(val32 & prefetch))
- break;
-
- mdelay(i);
- }
-
- if (val32 & prefetch) {
- pr_err("Prefetch bit is not cleared.\n");
- goto out;
- }
-
- /* Read data port */
- ret = __cw1200_reg_read(priv, port_addr, buf, buf_len, 0);
- if (ret < 0) {
- pr_err("Can't read data port.\n");
- goto out;
- }
-
-out:
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
- size_t buf_len)
-{
- int ret;
-
- if ((buf_len / 2) >= 0x1000) {
- pr_err("Can't write more than 0xfff words.\n");
- return -EINVAL;
- }
-
- priv->hwbus_ops->lock(priv->hwbus_priv);
-
- /* Write address */
- ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
- if (ret < 0) {
- pr_err("Can't write address register.\n");
- goto out;
- }
-
- /* Write data port */
- ret = __cw1200_reg_write(priv, ST90TDS_SRAM_DPORT_REG_ID,
- buf, buf_len, 0);
- if (ret < 0) {
- pr_err("Can't write data port.\n");
- goto out;
- }
-
-out:
- priv->hwbus_ops->unlock(priv->hwbus_priv);
- return ret;
-}
-
-int __cw1200_irq_enable(struct cw1200_common *priv, int enable)
-{
- u32 val32;
- u16 val16;
- int ret;
-
- if (HIF_8601_SILICON == priv->hw_type) {
- ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
- if (ret < 0) {
- pr_err("Can't read config register.\n");
- return ret;
- }
-
- if (enable)
- val32 |= ST90TDS_CONF_IRQ_RDY_ENABLE;
- else
- val32 &= ~ST90TDS_CONF_IRQ_RDY_ENABLE;
-
- ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val32);
- if (ret < 0) {
- pr_err("Can't write config register.\n");
- return ret;
- }
- } else {
- ret = __cw1200_reg_read_16(priv, ST90TDS_CONFIG_REG_ID, &val16);
- if (ret < 0) {
- pr_err("Can't read control register.\n");
- return ret;
- }
-
- if (enable)
- val16 |= ST90TDS_CONT_IRQ_RDY_ENABLE;
- else
- val16 &= ~ST90TDS_CONT_IRQ_RDY_ENABLE;
-
- ret = __cw1200_reg_write_16(priv, ST90TDS_CONFIG_REG_ID, val16);
- if (ret < 0) {
- pr_err("Can't write control register.\n");
- return ret;
- }
- }
- return 0;
-}
+++ /dev/null
-/*
- * Low-level API for mac80211 ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * ST-Ericsson UMAC CW1200 driver which is
- * Copyright (c) 2010, ST-Ericsson
- * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_HWIO_H_INCLUDED
-#define CW1200_HWIO_H_INCLUDED
-
-/* extern */ struct cw1200_common;
-
-#define CW1200_CUT_11_ID_STR (0x302E3830)
-#define CW1200_CUT_22_ID_STR1 (0x302e3132)
-#define CW1200_CUT_22_ID_STR2 (0x32302e30)
-#define CW1200_CUT_22_ID_STR3 (0x3335)
-#define CW1200_CUT_ID_ADDR (0xFFF17F90)
-#define CW1200_CUT2_ID_ADDR (0xFFF1FF90)
-
-/* Download control area */
-/* boot loader start address in SRAM */
-#define DOWNLOAD_BOOT_LOADER_OFFSET (0x00000000)
-/* 32K, 0x4000 to 0xDFFF */
-#define DOWNLOAD_FIFO_OFFSET (0x00004000)
-/* 32K */
-#define DOWNLOAD_FIFO_SIZE (0x00008000)
-/* 128 bytes, 0xFF80 to 0xFFFF */
-#define DOWNLOAD_CTRL_OFFSET (0x0000FF80)
-#define DOWNLOAD_CTRL_DATA_DWORDS (32-6)
-
-struct download_cntl_t {
- /* size of whole firmware file (including Cheksum), host init */
- u32 image_size;
- /* downloading flags */
- u32 flags;
- /* No. of bytes put into the download, init & updated by host */
- u32 put;
- /* last traced program counter, last ARM reg_pc */
- u32 trace_pc;
- /* No. of bytes read from the download, host init, device updates */
- u32 get;
- /* r0, boot losader status, host init to pending, device updates */
- u32 status;
- /* Extra debug info, r1 to r14 if status=r0=DOWNLOAD_EXCEPTION */
- u32 debug_data[DOWNLOAD_CTRL_DATA_DWORDS];
-};
-
-#define DOWNLOAD_IMAGE_SIZE_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, image_size))
-#define DOWNLOAD_FLAGS_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, flags))
-#define DOWNLOAD_PUT_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, put))
-#define DOWNLOAD_TRACE_PC_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, trace_pc))
-#define DOWNLOAD_GET_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, get))
-#define DOWNLOAD_STATUS_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, status))
-#define DOWNLOAD_DEBUG_DATA_REG \
- (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, debug_data))
-#define DOWNLOAD_DEBUG_DATA_LEN (108)
-
-#define DOWNLOAD_BLOCK_SIZE (1024)
-
-/* For boot loader detection */
-#define DOWNLOAD_ARE_YOU_HERE (0x87654321)
-#define DOWNLOAD_I_AM_HERE (0x12345678)
-
-/* Download error code */
-#define DOWNLOAD_PENDING (0xFFFFFFFF)
-#define DOWNLOAD_SUCCESS (0)
-#define DOWNLOAD_EXCEPTION (1)
-#define DOWNLOAD_ERR_MEM_1 (2)
-#define DOWNLOAD_ERR_MEM_2 (3)
-#define DOWNLOAD_ERR_SOFTWARE (4)
-#define DOWNLOAD_ERR_FILE_SIZE (5)
-#define DOWNLOAD_ERR_CHECKSUM (6)
-#define DOWNLOAD_ERR_OVERFLOW (7)
-#define DOWNLOAD_ERR_IMAGE (8)
-#define DOWNLOAD_ERR_HOST (9)
-#define DOWNLOAD_ERR_ABORT (10)
-
-
-#define SYS_BASE_ADDR_SILICON (0)
-#define PAC_BASE_ADDRESS_SILICON (SYS_BASE_ADDR_SILICON + 0x09000000)
-#define PAC_SHARED_MEMORY_SILICON (PAC_BASE_ADDRESS_SILICON)
-
-#define CW1200_APB(addr) (PAC_SHARED_MEMORY_SILICON + (addr))
-
-/* Device register definitions */
-
-/* WBF - SPI Register Addresses */
-#define ST90TDS_ADDR_ID_BASE (0x0000)
-/* 16/32 bits */
-#define ST90TDS_CONFIG_REG_ID (0x0000)
-/* 16/32 bits */
-#define ST90TDS_CONTROL_REG_ID (0x0001)
-/* 16 bits, Q mode W/R */
-#define ST90TDS_IN_OUT_QUEUE_REG_ID (0x0002)
-/* 32 bits, AHB bus R/W */
-#define ST90TDS_AHB_DPORT_REG_ID (0x0003)
-/* 16/32 bits */
-#define ST90TDS_SRAM_BASE_ADDR_REG_ID (0x0004)
-/* 32 bits, APB bus R/W */
-#define ST90TDS_SRAM_DPORT_REG_ID (0x0005)
-/* 32 bits, t_settle/general */
-#define ST90TDS_TSET_GEN_R_W_REG_ID (0x0006)
-/* 16 bits, Q mode read, no length */
-#define ST90TDS_FRAME_OUT_REG_ID (0x0007)
-#define ST90TDS_ADDR_ID_MAX (ST90TDS_FRAME_OUT_REG_ID)
-
-/* WBF - Control register bit set */
-/* next o/p length, bit 11 to 0 */
-#define ST90TDS_CONT_NEXT_LEN_MASK (0x0FFF)
-#define ST90TDS_CONT_WUP_BIT (BIT(12))
-#define ST90TDS_CONT_RDY_BIT (BIT(13))
-#define ST90TDS_CONT_IRQ_ENABLE (BIT(14))
-#define ST90TDS_CONT_RDY_ENABLE (BIT(15))
-#define ST90TDS_CONT_IRQ_RDY_ENABLE (BIT(14)|BIT(15))
-
-/* SPI Config register bit set */
-#define ST90TDS_CONFIG_FRAME_BIT (BIT(2))
-#define ST90TDS_CONFIG_WORD_MODE_BITS (BIT(3)|BIT(4))
-#define ST90TDS_CONFIG_WORD_MODE_1 (BIT(3))
-#define ST90TDS_CONFIG_WORD_MODE_2 (BIT(4))
-#define ST90TDS_CONFIG_ERROR_0_BIT (BIT(5))
-#define ST90TDS_CONFIG_ERROR_1_BIT (BIT(6))
-#define ST90TDS_CONFIG_ERROR_2_BIT (BIT(7))
-/* TBD: Sure??? */
-#define ST90TDS_CONFIG_CSN_FRAME_BIT (BIT(7))
-#define ST90TDS_CONFIG_ERROR_3_BIT (BIT(8))
-#define ST90TDS_CONFIG_ERROR_4_BIT (BIT(9))
-/* QueueM */
-#define ST90TDS_CONFIG_ACCESS_MODE_BIT (BIT(10))
-/* AHB bus */
-#define ST90TDS_CONFIG_AHB_PRFETCH_BIT (BIT(11))
-#define ST90TDS_CONFIG_CPU_CLK_DIS_BIT (BIT(12))
-/* APB bus */
-#define ST90TDS_CONFIG_PRFETCH_BIT (BIT(13))
-/* cpu reset */
-#define ST90TDS_CONFIG_CPU_RESET_BIT (BIT(14))
-#define ST90TDS_CONFIG_CLEAR_INT_BIT (BIT(15))
-
-/* For CW1200 the IRQ Enable and Ready Bits are in CONFIG register */
-#define ST90TDS_CONF_IRQ_ENABLE (BIT(16))
-#define ST90TDS_CONF_RDY_ENABLE (BIT(17))
-#define ST90TDS_CONF_IRQ_RDY_ENABLE (BIT(16)|BIT(17))
-
-int cw1200_data_read(struct cw1200_common *priv,
- void *buf, size_t buf_len);
-int cw1200_data_write(struct cw1200_common *priv,
- const void *buf, size_t buf_len);
-
-int cw1200_reg_read(struct cw1200_common *priv, u16 addr,
- void *buf, size_t buf_len);
-int cw1200_reg_write(struct cw1200_common *priv, u16 addr,
- const void *buf, size_t buf_len);
-
-static inline int cw1200_reg_read_16(struct cw1200_common *priv,
- u16 addr, u16 *val)
-{
- __le32 tmp;
- int i;
- i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
- *val = le32_to_cpu(tmp) & 0xfffff;
- return i;
-}
-
-static inline int cw1200_reg_write_16(struct cw1200_common *priv,
- u16 addr, u16 val)
-{
- __le32 tmp = cpu_to_le32((u32)val);
- return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
-}
-
-static inline int cw1200_reg_read_32(struct cw1200_common *priv,
- u16 addr, u32 *val)
-{
- __le32 tmp;
- int i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
- *val = le32_to_cpu(tmp);
- return i;
-}
-
-static inline int cw1200_reg_write_32(struct cw1200_common *priv,
- u16 addr, u32 val)
-{
- __le32 tmp = cpu_to_le32(val);
- return cw1200_reg_write(priv, addr, &tmp, sizeof(val));
-}
-
-int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
- size_t buf_len, u32 prefetch, u16 port_addr);
-int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
- size_t buf_len);
-
-static inline int cw1200_apb_read(struct cw1200_common *priv, u32 addr,
- void *buf, size_t buf_len)
-{
- return cw1200_indirect_read(priv, addr, buf, buf_len,
- ST90TDS_CONFIG_PRFETCH_BIT,
- ST90TDS_SRAM_DPORT_REG_ID);
-}
-
-static inline int cw1200_ahb_read(struct cw1200_common *priv, u32 addr,
- void *buf, size_t buf_len)
-{
- return cw1200_indirect_read(priv, addr, buf, buf_len,
- ST90TDS_CONFIG_AHB_PRFETCH_BIT,
- ST90TDS_AHB_DPORT_REG_ID);
-}
-
-static inline int cw1200_apb_read_32(struct cw1200_common *priv,
- u32 addr, u32 *val)
-{
- __le32 tmp;
- int i = cw1200_apb_read(priv, addr, &tmp, sizeof(tmp));
- *val = le32_to_cpu(tmp);
- return i;
-}
-
-static inline int cw1200_apb_write_32(struct cw1200_common *priv,
- u32 addr, u32 val)
-{
- __le32 tmp = cpu_to_le32(val);
- return cw1200_apb_write(priv, addr, &tmp, sizeof(val));
-}
-static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
- u32 addr, u32 *val)
-{
- __le32 tmp;
- int i = cw1200_ahb_read(priv, addr, &tmp, sizeof(tmp));
- *val = le32_to_cpu(tmp);
- return i;
-}
-
-#endif /* CW1200_HWIO_H_INCLUDED */
+++ /dev/null
-/*
- * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on:
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
- * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- *
- * Based on:
- * - the islsm (softmac prism54) driver, which is:
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
- * - stlc45xx driver
- * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/random.h>
-#include <linux/sched.h>
-#include <net/mac80211.h>
-
-#include "cw1200.h"
-#include "txrx.h"
-#include "hwbus.h"
-#include "fwio.h"
-#include "hwio.h"
-#include "bh.h"
-#include "sta.h"
-#include "scan.h"
-#include "debug.h"
-#include "pm.h"
-
-MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
-MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("cw1200_core");
-
-/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
-static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
-module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO);
-MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
-
-static char *cw1200_sdd_path;
-module_param(cw1200_sdd_path, charp, 0644);
-MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
-static int cw1200_refclk;
-module_param(cw1200_refclk, int, 0644);
-MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
-
-int cw1200_power_mode = wsm_power_mode_quiescent;
-module_param(cw1200_power_mode, int, 0644);
-MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)");
-
-#define RATETAB_ENT(_rate, _rateid, _flags) \
- { \
- .bitrate = (_rate), \
- .hw_value = (_rateid), \
- .flags = (_flags), \
- }
-
-static struct ieee80211_rate cw1200_rates[] = {
- RATETAB_ENT(10, 0, 0),
- RATETAB_ENT(20, 1, 0),
- RATETAB_ENT(55, 2, 0),
- RATETAB_ENT(110, 3, 0),
- RATETAB_ENT(60, 6, 0),
- RATETAB_ENT(90, 7, 0),
- RATETAB_ENT(120, 8, 0),
- RATETAB_ENT(180, 9, 0),
- RATETAB_ENT(240, 10, 0),
- RATETAB_ENT(360, 11, 0),
- RATETAB_ENT(480, 12, 0),
- RATETAB_ENT(540, 13, 0),
-};
-
-static struct ieee80211_rate cw1200_mcs_rates[] = {
- RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
- RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
-};
-
-#define cw1200_a_rates (cw1200_rates + 4)
-#define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4)
-#define cw1200_g_rates (cw1200_rates + 0)
-#define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates))
-#define cw1200_n_rates (cw1200_mcs_rates)
-#define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates))
-
-
-#define CHAN2G(_channel, _freq, _flags) { \
- .band = IEEE80211_BAND_2GHZ, \
- .center_freq = (_freq), \
- .hw_value = (_channel), \
- .flags = (_flags), \
- .max_antenna_gain = 0, \
- .max_power = 30, \
-}
-
-#define CHAN5G(_channel, _flags) { \
- .band = IEEE80211_BAND_5GHZ, \
- .center_freq = 5000 + (5 * (_channel)), \
- .hw_value = (_channel), \
- .flags = (_flags), \
- .max_antenna_gain = 0, \
- .max_power = 30, \
-}
-
-static struct ieee80211_channel cw1200_2ghz_chantable[] = {
- CHAN2G(1, 2412, 0),
- CHAN2G(2, 2417, 0),
- CHAN2G(3, 2422, 0),
- CHAN2G(4, 2427, 0),
- CHAN2G(5, 2432, 0),
- CHAN2G(6, 2437, 0),
- CHAN2G(7, 2442, 0),
- CHAN2G(8, 2447, 0),
- CHAN2G(9, 2452, 0),
- CHAN2G(10, 2457, 0),
- CHAN2G(11, 2462, 0),
- CHAN2G(12, 2467, 0),
- CHAN2G(13, 2472, 0),
- CHAN2G(14, 2484, 0),
-};
-
-static struct ieee80211_channel cw1200_5ghz_chantable[] = {
- CHAN5G(34, 0), CHAN5G(36, 0),
- CHAN5G(38, 0), CHAN5G(40, 0),
- CHAN5G(42, 0), CHAN5G(44, 0),
- CHAN5G(46, 0), CHAN5G(48, 0),
- CHAN5G(52, 0), CHAN5G(56, 0),
- CHAN5G(60, 0), CHAN5G(64, 0),
- CHAN5G(100, 0), CHAN5G(104, 0),
- CHAN5G(108, 0), CHAN5G(112, 0),
- CHAN5G(116, 0), CHAN5G(120, 0),
- CHAN5G(124, 0), CHAN5G(128, 0),
- CHAN5G(132, 0), CHAN5G(136, 0),
- CHAN5G(140, 0), CHAN5G(149, 0),
- CHAN5G(153, 0), CHAN5G(157, 0),
- CHAN5G(161, 0), CHAN5G(165, 0),
- CHAN5G(184, 0), CHAN5G(188, 0),
- CHAN5G(192, 0), CHAN5G(196, 0),
- CHAN5G(200, 0), CHAN5G(204, 0),
- CHAN5G(208, 0), CHAN5G(212, 0),
- CHAN5G(216, 0),
-};
-
-static struct ieee80211_supported_band cw1200_band_2ghz = {
- .channels = cw1200_2ghz_chantable,
- .n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
- .bitrates = cw1200_g_rates,
- .n_bitrates = cw1200_g_rates_size,
- .ht_cap = {
- .cap = IEEE80211_HT_CAP_GRN_FLD |
- (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
- IEEE80211_HT_CAP_MAX_AMSDU,
- .ht_supported = 1,
- .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
- .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
- .mcs = {
- .rx_mask[0] = 0xFF,
- .rx_highest = __cpu_to_le16(0x41),
- .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
- },
- },
-};
-
-static struct ieee80211_supported_band cw1200_band_5ghz = {
- .channels = cw1200_5ghz_chantable,
- .n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
- .bitrates = cw1200_a_rates,
- .n_bitrates = cw1200_a_rates_size,
- .ht_cap = {
- .cap = IEEE80211_HT_CAP_GRN_FLD |
- (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
- IEEE80211_HT_CAP_MAX_AMSDU,
- .ht_supported = 1,
- .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
- .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
- .mcs = {
- .rx_mask[0] = 0xFF,
- .rx_highest = __cpu_to_le16(0x41),
- .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
- },
- },
-};
-
-static const unsigned long cw1200_ttl[] = {
- 1 * HZ, /* VO */
- 2 * HZ, /* VI */
- 5 * HZ, /* BE */
- 10 * HZ /* BK */
-};
-
-static const struct ieee80211_ops cw1200_ops = {
- .start = cw1200_start,
- .stop = cw1200_stop,
- .add_interface = cw1200_add_interface,
- .remove_interface = cw1200_remove_interface,
- .change_interface = cw1200_change_interface,
- .tx = cw1200_tx,
- .hw_scan = cw1200_hw_scan,
- .set_tim = cw1200_set_tim,
- .sta_notify = cw1200_sta_notify,
- .sta_add = cw1200_sta_add,
- .sta_remove = cw1200_sta_remove,
- .set_key = cw1200_set_key,
- .set_rts_threshold = cw1200_set_rts_threshold,
- .config = cw1200_config,
- .bss_info_changed = cw1200_bss_info_changed,
- .prepare_multicast = cw1200_prepare_multicast,
- .configure_filter = cw1200_configure_filter,
- .conf_tx = cw1200_conf_tx,
- .get_stats = cw1200_get_stats,
- .ampdu_action = cw1200_ampdu_action,
- .flush = cw1200_flush,
-#ifdef CONFIG_PM
- .suspend = cw1200_wow_suspend,
- .resume = cw1200_wow_resume,
-#endif
- /* Intentionally not offloaded: */
- /*.channel_switch = cw1200_channel_switch, */
- /*.remain_on_channel = cw1200_remain_on_channel, */
- /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
-};
-
-static int cw1200_ba_rx_tids = -1;
-static int cw1200_ba_tx_tids = -1;
-module_param(cw1200_ba_rx_tids, int, 0644);
-module_param(cw1200_ba_tx_tids, int, 0644);
-MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
-MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
-
-#ifdef CONFIG_PM
-static const struct wiphy_wowlan_support cw1200_wowlan_support = {
- /* Support only for limited wowlan functionalities */
- .flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
-};
-#endif
-
-
-static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
- const bool have_5ghz)
-{
- int i, band;
- struct ieee80211_hw *hw;
- struct cw1200_common *priv;
-
- hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
- if (!hw)
- return NULL;
-
- priv = hw->priv;
- priv->hw = hw;
- priv->hw_type = -1;
- priv->mode = NL80211_IFTYPE_UNSPECIFIED;
- priv->rates = cw1200_rates; /* TODO: fetch from FW */
- priv->mcs_rates = cw1200_n_rates;
- if (cw1200_ba_rx_tids != -1)
- priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
- else
- priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
- if (cw1200_ba_tx_tids != -1)
- priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
- else
- priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
-
- ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
- ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
- ieee80211_hw_set(hw, AMPDU_AGGREGATION);
- ieee80211_hw_set(hw, CONNECTION_MONITOR);
- ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
- ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
- ieee80211_hw_set(hw, SIGNAL_DBM);
- ieee80211_hw_set(hw, SUPPORTS_PS);
-
- hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_ADHOC) |
- BIT(NL80211_IFTYPE_AP) |
- BIT(NL80211_IFTYPE_MESH_POINT) |
- BIT(NL80211_IFTYPE_P2P_CLIENT) |
- BIT(NL80211_IFTYPE_P2P_GO);
-
-#ifdef CONFIG_PM
- hw->wiphy->wowlan = &cw1200_wowlan_support;
-#endif
-
- hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
-
- hw->queues = 4;
-
- priv->rts_threshold = -1;
-
- hw->max_rates = 8;
- hw->max_rate_tries = 15;
- hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
- 8; /* TKIP IV */
-
- hw->sta_data_size = sizeof(struct cw1200_sta_priv);
-
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
- if (have_5ghz)
- hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;
-
- /* Channel params have to be cleared before registering wiphy again */
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
- if (!sband)
- continue;
- for (i = 0; i < sband->n_channels; i++) {
- sband->channels[i].flags = 0;
- sband->channels[i].max_antenna_gain = 0;
- sband->channels[i].max_power = 30;
- }
- }
-
- hw->wiphy->max_scan_ssids = 2;
- hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
-
- if (macaddr)
- SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
- else
- SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
-
- /* Fix up mac address if necessary */
- if (hw->wiphy->perm_addr[3] == 0 &&
- hw->wiphy->perm_addr[4] == 0 &&
- hw->wiphy->perm_addr[5] == 0) {
- get_random_bytes(&hw->wiphy->perm_addr[3], 3);
- }
-
- mutex_init(&priv->wsm_cmd_mux);
- mutex_init(&priv->conf_mutex);
- priv->workqueue = create_singlethread_workqueue("cw1200_wq");
- sema_init(&priv->scan.lock, 1);
- INIT_WORK(&priv->scan.work, cw1200_scan_work);
- INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
- INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
- INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
- cw1200_clear_recent_scan_work);
- INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
- INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
- INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
- INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
- INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
- spin_lock_init(&priv->event_queue_lock);
- INIT_LIST_HEAD(&priv->event_queue);
- INIT_WORK(&priv->event_handler, cw1200_event_handler);
- INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
- INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
- spin_lock_init(&priv->bss_loss_lock);
- spin_lock_init(&priv->ps_state_lock);
- INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
- INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
- INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
- INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
- INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
- INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
- INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
- INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
- INIT_WORK(&priv->set_beacon_wakeup_period_work,
- cw1200_set_beacon_wakeup_period_work);
- setup_timer(&priv->mcast_timeout, cw1200_mcast_timeout,
- (unsigned long)priv);
-
- if (cw1200_queue_stats_init(&priv->tx_queue_stats,
- CW1200_LINK_ID_MAX,
- cw1200_skb_dtor,
- priv)) {
- ieee80211_free_hw(hw);
- return NULL;
- }
-
- for (i = 0; i < 4; ++i) {
- if (cw1200_queue_init(&priv->tx_queue[i],
- &priv->tx_queue_stats, i, 16,
- cw1200_ttl[i])) {
- for (; i > 0; i--)
- cw1200_queue_deinit(&priv->tx_queue[i - 1]);
- cw1200_queue_stats_deinit(&priv->tx_queue_stats);
- ieee80211_free_hw(hw);
- return NULL;
- }
- }
-
- init_waitqueue_head(&priv->channel_switch_done);
- init_waitqueue_head(&priv->wsm_cmd_wq);
- init_waitqueue_head(&priv->wsm_startup_done);
- init_waitqueue_head(&priv->ps_mode_switch_done);
- wsm_buf_init(&priv->wsm_cmd_buf);
- spin_lock_init(&priv->wsm_cmd.lock);
- priv->wsm_cmd.done = 1;
- tx_policy_init(priv);
-
- return hw;
-}
-
-static int cw1200_register_common(struct ieee80211_hw *dev)
-{
- struct cw1200_common *priv = dev->priv;
- int err;
-
-#ifdef CONFIG_PM
- err = cw1200_pm_init(&priv->pm_state, priv);
- if (err) {
- pr_err("Cannot init PM. (%d).\n",
- err);
- return err;
- }
-#endif
-
- err = ieee80211_register_hw(dev);
- if (err) {
- pr_err("Cannot register device (%d).\n",
- err);
-#ifdef CONFIG_PM
- cw1200_pm_deinit(&priv->pm_state);
-#endif
- return err;
- }
-
- cw1200_debug_init(priv);
-
- pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
- return 0;
-}
-
-static void cw1200_free_common(struct ieee80211_hw *dev)
-{
- ieee80211_free_hw(dev);
-}
-
-static void cw1200_unregister_common(struct ieee80211_hw *dev)
-{
- struct cw1200_common *priv = dev->priv;
- int i;
-
- ieee80211_unregister_hw(dev);
-
- del_timer_sync(&priv->mcast_timeout);
- cw1200_unregister_bh(priv);
-
- cw1200_debug_release(priv);
-
- mutex_destroy(&priv->conf_mutex);
-
- wsm_buf_deinit(&priv->wsm_cmd_buf);
-
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
-
- if (priv->sdd) {
- release_firmware(priv->sdd);
- priv->sdd = NULL;
- }
-
- for (i = 0; i < 4; ++i)
- cw1200_queue_deinit(&priv->tx_queue[i]);
-
- cw1200_queue_stats_deinit(&priv->tx_queue_stats);
-#ifdef CONFIG_PM
- cw1200_pm_deinit(&priv->pm_state);
-#endif
-}
-
-/* Clock is in KHz */
-u32 cw1200_dpll_from_clk(u16 clk_khz)
-{
- switch (clk_khz) {
- case 0x32C8: /* 13000 KHz */
- return 0x1D89D241;
- case 0x3E80: /* 16000 KHz */
- return 0x000001E1;
- case 0x41A0: /* 16800 KHz */
- return 0x124931C1;
- case 0x4B00: /* 19200 KHz */
- return 0x00000191;
- case 0x5DC0: /* 24000 KHz */
- return 0x00000141;
- case 0x6590: /* 26000 KHz */
- return 0x0EC4F121;
- case 0x8340: /* 33600 KHz */
- return 0x092490E1;
- case 0x9600: /* 38400 KHz */
- return 0x100010C1;
- case 0x9C40: /* 40000 KHz */
- return 0x000000C1;
- case 0xBB80: /* 48000 KHz */
- return 0x000000A1;
- case 0xCB20: /* 52000 KHz */
- return 0x07627091;
- default:
- pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n",
- clk_khz);
- return 0x0EC4F121;
- }
-}
-
-int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
- struct hwbus_priv *hwbus,
- struct device *pdev,
- struct cw1200_common **core,
- int ref_clk, const u8 *macaddr,
- const char *sdd_path, bool have_5ghz)
-{
- int err = -EINVAL;
- struct ieee80211_hw *dev;
- struct cw1200_common *priv;
- struct wsm_operational_mode mode = {
- .power_mode = cw1200_power_mode,
- .disable_more_flag_usage = true,
- };
-
- dev = cw1200_init_common(macaddr, have_5ghz);
- if (!dev)
- goto err;
-
- priv = dev->priv;
- priv->hw_refclk = ref_clk;
- if (cw1200_refclk)
- priv->hw_refclk = cw1200_refclk;
-
- priv->sdd_path = (char *)sdd_path;
- if (cw1200_sdd_path)
- priv->sdd_path = cw1200_sdd_path;
-
- priv->hwbus_ops = hwbus_ops;
- priv->hwbus_priv = hwbus;
- priv->pdev = pdev;
- SET_IEEE80211_DEV(priv->hw, pdev);
-
- /* Pass struct cw1200_common back up */
- *core = priv;
-
- err = cw1200_register_bh(priv);
- if (err)
- goto err1;
-
- err = cw1200_load_firmware(priv);
- if (err)
- goto err2;
-
- if (wait_event_interruptible_timeout(priv->wsm_startup_done,
- priv->firmware_ready,
- 3*HZ) <= 0) {
- /* TODO: Need to find how to reset device
- in QUEUE mode properly.
- */
- pr_err("Timeout waiting on device startup\n");
- err = -ETIMEDOUT;
- goto err2;
- }
-
- /* Set low-power mode. */
- wsm_set_operational_mode(priv, &mode);
-
- /* Enable multi-TX confirmation */
- wsm_use_multi_tx_conf(priv, true);
-
- err = cw1200_register_common(dev);
- if (err)
- goto err2;
-
- return err;
-
-err2:
- cw1200_unregister_bh(priv);
-err1:
- cw1200_free_common(dev);
-err:
- *core = NULL;
- return err;
-}
-EXPORT_SYMBOL_GPL(cw1200_core_probe);
-
-void cw1200_core_release(struct cw1200_common *self)
-{
- /* Disable device interrupts */
- self->hwbus_ops->lock(self->hwbus_priv);
- __cw1200_irq_enable(self, 0);
- self->hwbus_ops->unlock(self->hwbus_priv);
-
- /* And then clean up */
- cw1200_unregister_common(self->hw);
- cw1200_free_common(self->hw);
- return;
-}
-EXPORT_SYMBOL_GPL(cw1200_core_release);
+++ /dev/null
-/*
- * Mac80211 power management API for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2011, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/if_ether.h>
-#include "cw1200.h"
-#include "pm.h"
-#include "sta.h"
-#include "bh.h"
-#include "hwbus.h"
-
-#define CW1200_BEACON_SKIPPING_MULTIPLIER 3
-
-struct cw1200_udp_port_filter {
- struct wsm_udp_port_filter_hdr hdr;
- /* Up to 4 filters are allowed. */
- struct wsm_udp_port_filter filters[WSM_MAX_FILTER_ELEMENTS];
-} __packed;
-
-struct cw1200_ether_type_filter {
- struct wsm_ether_type_filter_hdr hdr;
- /* Up to 4 filters are allowed. */
- struct wsm_ether_type_filter filters[WSM_MAX_FILTER_ELEMENTS];
-} __packed;
-
-static struct cw1200_udp_port_filter cw1200_udp_port_filter_on = {
- .hdr.num = 2,
- .filters = {
- [0] = {
- .action = WSM_FILTER_ACTION_FILTER_OUT,
- .type = WSM_FILTER_PORT_TYPE_DST,
- .port = __cpu_to_le16(67), /* DHCP Bootps */
- },
- [1] = {
- .action = WSM_FILTER_ACTION_FILTER_OUT,
- .type = WSM_FILTER_PORT_TYPE_DST,
- .port = __cpu_to_le16(68), /* DHCP Bootpc */
- },
- }
-};
-
-static struct wsm_udp_port_filter_hdr cw1200_udp_port_filter_off = {
- .num = 0,
-};
-
-#ifndef ETH_P_WAPI
-#define ETH_P_WAPI 0x88B4
-#endif
-
-static struct cw1200_ether_type_filter cw1200_ether_type_filter_on = {
- .hdr.num = 4,
- .filters = {
- [0] = {
- .action = WSM_FILTER_ACTION_FILTER_IN,
- .type = __cpu_to_le16(ETH_P_IP),
- },
- [1] = {
- .action = WSM_FILTER_ACTION_FILTER_IN,
- .type = __cpu_to_le16(ETH_P_PAE),
- },
- [2] = {
- .action = WSM_FILTER_ACTION_FILTER_IN,
- .type = __cpu_to_le16(ETH_P_WAPI),
- },
- [3] = {
- .action = WSM_FILTER_ACTION_FILTER_IN,
- .type = __cpu_to_le16(ETH_P_ARP),
- },
- },
-};
-
-static struct wsm_ether_type_filter_hdr cw1200_ether_type_filter_off = {
- .num = 0,
-};
-
-/* private */
-struct cw1200_suspend_state {
- unsigned long bss_loss_tmo;
- unsigned long join_tmo;
- unsigned long direct_probe;
- unsigned long link_id_gc;
- bool beacon_skipping;
- u8 prev_ps_mode;
-};
-
-static void cw1200_pm_stay_awake_tmo(unsigned long arg)
-{
- /* XXX what's the point of this ? */
-}
-
-int cw1200_pm_init(struct cw1200_pm_state *pm,
- struct cw1200_common *priv)
-{
- spin_lock_init(&pm->lock);
-
- setup_timer(&pm->stay_awake, cw1200_pm_stay_awake_tmo,
- (unsigned long)pm);
-
- return 0;
-}
-
-void cw1200_pm_deinit(struct cw1200_pm_state *pm)
-{
- del_timer_sync(&pm->stay_awake);
-}
-
-void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
- unsigned long tmo)
-{
- long cur_tmo;
- spin_lock_bh(&pm->lock);
- cur_tmo = pm->stay_awake.expires - jiffies;
- if (!timer_pending(&pm->stay_awake) || cur_tmo < (long)tmo)
- mod_timer(&pm->stay_awake, jiffies + tmo);
- spin_unlock_bh(&pm->lock);
-}
-
-static long cw1200_suspend_work(struct delayed_work *work)
-{
- int ret = cancel_delayed_work(work);
- long tmo;
- if (ret > 0) {
- /* Timer is pending */
- tmo = work->timer.expires - jiffies;
- if (tmo < 0)
- tmo = 0;
- } else {
- tmo = -1;
- }
- return tmo;
-}
-
-static int cw1200_resume_work(struct cw1200_common *priv,
- struct delayed_work *work,
- unsigned long tmo)
-{
- if ((long)tmo < 0)
- return 1;
-
- return queue_delayed_work(priv->workqueue, work, tmo);
-}
-
-int cw1200_can_suspend(struct cw1200_common *priv)
-{
- if (atomic_read(&priv->bh_rx)) {
- wiphy_dbg(priv->hw->wiphy, "Suspend interrupted.\n");
- return 0;
- }
- return 1;
-}
-EXPORT_SYMBOL_GPL(cw1200_can_suspend);
-
-int cw1200_wow_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
-{
- struct cw1200_common *priv = hw->priv;
- struct cw1200_pm_state *pm_state = &priv->pm_state;
- struct cw1200_suspend_state *state;
- int ret;
-
- spin_lock_bh(&pm_state->lock);
- ret = timer_pending(&pm_state->stay_awake);
- spin_unlock_bh(&pm_state->lock);
- if (ret)
- return -EAGAIN;
-
- /* Do not suspend when datapath is not idle */
- if (priv->tx_queue_stats.num_queued)
- return -EBUSY;
-
- /* Make sure there is no configuration requests in progress. */
- if (!mutex_trylock(&priv->conf_mutex))
- return -EBUSY;
-
- /* Ensure pending operations are done.
- * Note also that wow_suspend must return in ~2.5sec, before
- * watchdog is triggered.
- */
- if (priv->channel_switch_in_progress)
- goto revert1;
-
- /* Do not suspend when join is pending */
- if (priv->join_pending)
- goto revert1;
-
- /* Do not suspend when scanning */
- if (down_trylock(&priv->scan.lock))
- goto revert1;
-
- /* Lock TX. */
- wsm_lock_tx_async(priv);
-
- /* Wait to avoid possible race with bh code.
- * But do not wait too long...
- */
- if (wait_event_timeout(priv->bh_evt_wq,
- !priv->hw_bufs_used, HZ / 10) <= 0)
- goto revert2;
-
- /* Set UDP filter */
- wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_on.hdr);
-
- /* Set ethernet frame type filter */
- wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_on.hdr);
-
- /* Allocate state */
- state = kzalloc(sizeof(struct cw1200_suspend_state), GFP_KERNEL);
- if (!state)
- goto revert3;
-
- /* Change to legacy PS while going to suspend */
- if (!priv->vif->p2p &&
- priv->join_status == CW1200_JOIN_STATUS_STA &&
- priv->powersave_mode.mode != WSM_PSM_PS) {
- state->prev_ps_mode = priv->powersave_mode.mode;
- priv->powersave_mode.mode = WSM_PSM_PS;
- cw1200_set_pm(priv, &priv->powersave_mode);
- if (wait_event_interruptible_timeout(priv->ps_mode_switch_done,
- !priv->ps_mode_switch_in_progress, 1*HZ) <= 0) {
- goto revert4;
- }
- }
-
- /* Store delayed work states. */
- state->bss_loss_tmo =
- cw1200_suspend_work(&priv->bss_loss_work);
- state->join_tmo =
- cw1200_suspend_work(&priv->join_timeout);
- state->direct_probe =
- cw1200_suspend_work(&priv->scan.probe_work);
- state->link_id_gc =
- cw1200_suspend_work(&priv->link_id_gc_work);
-
- cancel_delayed_work_sync(&priv->clear_recent_scan_work);
- atomic_set(&priv->recent_scan, 0);
-
- /* Enable beacon skipping */
- if (priv->join_status == CW1200_JOIN_STATUS_STA &&
- priv->join_dtim_period &&
- !priv->has_multicast_subscription) {
- state->beacon_skipping = true;
- wsm_set_beacon_wakeup_period(priv,
- priv->join_dtim_period,
- CW1200_BEACON_SKIPPING_MULTIPLIER * priv->join_dtim_period);
- }
-
- /* Stop serving thread */
- if (cw1200_bh_suspend(priv))
- goto revert5;
-
- ret = timer_pending(&priv->mcast_timeout);
- if (ret)
- goto revert6;
-
- /* Store suspend state */
- pm_state->suspend_state = state;
-
- /* Enable IRQ wake */
- ret = priv->hwbus_ops->power_mgmt(priv->hwbus_priv, true);
- if (ret) {
- wiphy_err(priv->hw->wiphy,
- "PM request failed: %d. WoW is disabled.\n", ret);
- cw1200_wow_resume(hw);
- return -EBUSY;
- }
-
- /* Force resume if event is coming from the device. */
- if (atomic_read(&priv->bh_rx)) {
- cw1200_wow_resume(hw);
- return -EAGAIN;
- }
-
- return 0;
-
-revert6:
- WARN_ON(cw1200_bh_resume(priv));
-revert5:
- cw1200_resume_work(priv, &priv->bss_loss_work,
- state->bss_loss_tmo);
- cw1200_resume_work(priv, &priv->join_timeout,
- state->join_tmo);
- cw1200_resume_work(priv, &priv->scan.probe_work,
- state->direct_probe);
- cw1200_resume_work(priv, &priv->link_id_gc_work,
- state->link_id_gc);
-revert4:
- kfree(state);
-revert3:
- wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
- wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
-revert2:
- wsm_unlock_tx(priv);
- up(&priv->scan.lock);
-revert1:
- mutex_unlock(&priv->conf_mutex);
- return -EBUSY;
-}
-
-int cw1200_wow_resume(struct ieee80211_hw *hw)
-{
- struct cw1200_common *priv = hw->priv;
- struct cw1200_pm_state *pm_state = &priv->pm_state;
- struct cw1200_suspend_state *state;
-
- state = pm_state->suspend_state;
- pm_state->suspend_state = NULL;
-
- /* Disable IRQ wake */
- priv->hwbus_ops->power_mgmt(priv->hwbus_priv, false);
-
- /* Scan.lock must be released before BH is resumed other way
- * in case when BSS_LOST command arrived the processing of the
- * command will be delayed.
- */
- up(&priv->scan.lock);
-
- /* Resume BH thread */
- WARN_ON(cw1200_bh_resume(priv));
-
- /* Restores previous PS mode */
- if (!priv->vif->p2p && priv->join_status == CW1200_JOIN_STATUS_STA) {
- priv->powersave_mode.mode = state->prev_ps_mode;
- cw1200_set_pm(priv, &priv->powersave_mode);
- }
-
- if (state->beacon_skipping) {
- wsm_set_beacon_wakeup_period(priv, priv->beacon_int *
- priv->join_dtim_period >
- MAX_BEACON_SKIP_TIME_MS ? 1 :
- priv->join_dtim_period, 0);
- state->beacon_skipping = false;
- }
-
- /* Resume delayed work */
- cw1200_resume_work(priv, &priv->bss_loss_work,
- state->bss_loss_tmo);
- cw1200_resume_work(priv, &priv->join_timeout,
- state->join_tmo);
- cw1200_resume_work(priv, &priv->scan.probe_work,
- state->direct_probe);
- cw1200_resume_work(priv, &priv->link_id_gc_work,
- state->link_id_gc);
-
- /* Remove UDP port filter */
- wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
-
- /* Remove ethernet frame type filter */
- wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
-
- /* Unlock datapath */
- wsm_unlock_tx(priv);
-
- /* Unlock configuration mutex */
- mutex_unlock(&priv->conf_mutex);
-
- /* Free memory */
- kfree(state);
-
- return 0;
-}
+++ /dev/null
-/*
- * Mac80211 power management interface for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2011, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef PM_H_INCLUDED
-#define PM_H_INCLUDED
-
-/* ******************************************************************** */
-/* mac80211 API */
-
-/* extern */ struct cw1200_common;
-/* private */ struct cw1200_suspend_state;
-
-struct cw1200_pm_state {
- struct cw1200_suspend_state *suspend_state;
- struct timer_list stay_awake;
- struct platform_device *pm_dev;
- spinlock_t lock; /* Protect access */
-};
-
-#ifdef CONFIG_PM
-int cw1200_pm_init(struct cw1200_pm_state *pm,
- struct cw1200_common *priv);
-void cw1200_pm_deinit(struct cw1200_pm_state *pm);
-int cw1200_wow_suspend(struct ieee80211_hw *hw,
- struct cfg80211_wowlan *wowlan);
-int cw1200_wow_resume(struct ieee80211_hw *hw);
-int cw1200_can_suspend(struct cw1200_common *priv);
-void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
- unsigned long tmo);
-#else
-static inline void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
- unsigned long tmo) {
-}
-#endif
-#endif
+++ /dev/null
-/*
- * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <net/mac80211.h>
-#include <linux/sched.h>
-#include "queue.h"
-#include "cw1200.h"
-#include "debug.h"
-
-/* private */ struct cw1200_queue_item
-{
- struct list_head head;
- struct sk_buff *skb;
- u32 packet_id;
- unsigned long queue_timestamp;
- unsigned long xmit_timestamp;
- struct cw1200_txpriv txpriv;
- u8 generation;
-};
-
-static inline void __cw1200_queue_lock(struct cw1200_queue *queue)
-{
- struct cw1200_queue_stats *stats = queue->stats;
- if (queue->tx_locked_cnt++ == 0) {
- pr_debug("[TX] Queue %d is locked.\n",
- queue->queue_id);
- ieee80211_stop_queue(stats->priv->hw, queue->queue_id);
- }
-}
-
-static inline void __cw1200_queue_unlock(struct cw1200_queue *queue)
-{
- struct cw1200_queue_stats *stats = queue->stats;
- BUG_ON(!queue->tx_locked_cnt);
- if (--queue->tx_locked_cnt == 0) {
- pr_debug("[TX] Queue %d is unlocked.\n",
- queue->queue_id);
- ieee80211_wake_queue(stats->priv->hw, queue->queue_id);
- }
-}
-
-static inline void cw1200_queue_parse_id(u32 packet_id, u8 *queue_generation,
- u8 *queue_id, u8 *item_generation,
- u8 *item_id)
-{
- *item_id = (packet_id >> 0) & 0xFF;
- *item_generation = (packet_id >> 8) & 0xFF;
- *queue_id = (packet_id >> 16) & 0xFF;
- *queue_generation = (packet_id >> 24) & 0xFF;
-}
-
-static inline u32 cw1200_queue_mk_packet_id(u8 queue_generation, u8 queue_id,
- u8 item_generation, u8 item_id)
-{
- return ((u32)item_id << 0) |
- ((u32)item_generation << 8) |
- ((u32)queue_id << 16) |
- ((u32)queue_generation << 24);
-}
-
-static void cw1200_queue_post_gc(struct cw1200_queue_stats *stats,
- struct list_head *gc_list)
-{
- struct cw1200_queue_item *item, *tmp;
-
- list_for_each_entry_safe(item, tmp, gc_list, head) {
- list_del(&item->head);
- stats->skb_dtor(stats->priv, item->skb, &item->txpriv);
- kfree(item);
- }
-}
-
-static void cw1200_queue_register_post_gc(struct list_head *gc_list,
- struct cw1200_queue_item *item)
-{
- struct cw1200_queue_item *gc_item;
- gc_item = kmalloc(sizeof(struct cw1200_queue_item),
- GFP_ATOMIC);
- BUG_ON(!gc_item);
- memcpy(gc_item, item, sizeof(struct cw1200_queue_item));
- list_add_tail(&gc_item->head, gc_list);
-}
-
-static void __cw1200_queue_gc(struct cw1200_queue *queue,
- struct list_head *head,
- bool unlock)
-{
- struct cw1200_queue_stats *stats = queue->stats;
- struct cw1200_queue_item *item = NULL, *tmp;
- bool wakeup_stats = false;
-
- list_for_each_entry_safe(item, tmp, &queue->queue, head) {
- if (jiffies - item->queue_timestamp < queue->ttl)
- break;
- --queue->num_queued;
- --queue->link_map_cache[item->txpriv.link_id];
- spin_lock_bh(&stats->lock);
- --stats->num_queued;
- if (!--stats->link_map_cache[item->txpriv.link_id])
- wakeup_stats = true;
- spin_unlock_bh(&stats->lock);
- cw1200_debug_tx_ttl(stats->priv);
- cw1200_queue_register_post_gc(head, item);
- item->skb = NULL;
- list_move_tail(&item->head, &queue->free_pool);
- }
-
- if (wakeup_stats)
- wake_up(&stats->wait_link_id_empty);
-
- if (queue->overfull) {
- if (queue->num_queued <= (queue->capacity >> 1)) {
- queue->overfull = false;
- if (unlock)
- __cw1200_queue_unlock(queue);
- } else if (item) {
- unsigned long tmo = item->queue_timestamp + queue->ttl;
- mod_timer(&queue->gc, tmo);
- cw1200_pm_stay_awake(&stats->priv->pm_state,
- tmo - jiffies);
- }
- }
-}
-
-static void cw1200_queue_gc(unsigned long arg)
-{
- LIST_HEAD(list);
- struct cw1200_queue *queue =
- (struct cw1200_queue *)arg;
-
- spin_lock_bh(&queue->lock);
- __cw1200_queue_gc(queue, &list, true);
- spin_unlock_bh(&queue->lock);
- cw1200_queue_post_gc(queue->stats, &list);
-}
-
-int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
- size_t map_capacity,
- cw1200_queue_skb_dtor_t skb_dtor,
- struct cw1200_common *priv)
-{
- memset(stats, 0, sizeof(*stats));
- stats->map_capacity = map_capacity;
- stats->skb_dtor = skb_dtor;
- stats->priv = priv;
- spin_lock_init(&stats->lock);
- init_waitqueue_head(&stats->wait_link_id_empty);
-
- stats->link_map_cache = kzalloc(sizeof(int) * map_capacity,
- GFP_KERNEL);
- if (!stats->link_map_cache)
- return -ENOMEM;
-
- return 0;
-}
-
-int cw1200_queue_init(struct cw1200_queue *queue,
- struct cw1200_queue_stats *stats,
- u8 queue_id,
- size_t capacity,
- unsigned long ttl)
-{
- size_t i;
-
- memset(queue, 0, sizeof(*queue));
- queue->stats = stats;
- queue->capacity = capacity;
- queue->queue_id = queue_id;
- queue->ttl = ttl;
- INIT_LIST_HEAD(&queue->queue);
- INIT_LIST_HEAD(&queue->pending);
- INIT_LIST_HEAD(&queue->free_pool);
- spin_lock_init(&queue->lock);
- setup_timer(&queue->gc, cw1200_queue_gc, (unsigned long)queue);
-
- queue->pool = kzalloc(sizeof(struct cw1200_queue_item) * capacity,
- GFP_KERNEL);
- if (!queue->pool)
- return -ENOMEM;
-
- queue->link_map_cache = kzalloc(sizeof(int) * stats->map_capacity,
- GFP_KERNEL);
- if (!queue->link_map_cache) {
- kfree(queue->pool);
- queue->pool = NULL;
- return -ENOMEM;
- }
-
- for (i = 0; i < capacity; ++i)
- list_add_tail(&queue->pool[i].head, &queue->free_pool);
-
- return 0;
-}
-
-int cw1200_queue_clear(struct cw1200_queue *queue)
-{
- int i;
- LIST_HEAD(gc_list);
- struct cw1200_queue_stats *stats = queue->stats;
- struct cw1200_queue_item *item, *tmp;
-
- spin_lock_bh(&queue->lock);
- queue->generation++;
- list_splice_tail_init(&queue->queue, &queue->pending);
- list_for_each_entry_safe(item, tmp, &queue->pending, head) {
- WARN_ON(!item->skb);
- cw1200_queue_register_post_gc(&gc_list, item);
- item->skb = NULL;
- list_move_tail(&item->head, &queue->free_pool);
- }
- queue->num_queued = 0;
- queue->num_pending = 0;
-
- spin_lock_bh(&stats->lock);
- for (i = 0; i < stats->map_capacity; ++i) {
- stats->num_queued -= queue->link_map_cache[i];
- stats->link_map_cache[i] -= queue->link_map_cache[i];
- queue->link_map_cache[i] = 0;
- }
- spin_unlock_bh(&stats->lock);
- if (queue->overfull) {
- queue->overfull = false;
- __cw1200_queue_unlock(queue);
- }
- spin_unlock_bh(&queue->lock);
- wake_up(&stats->wait_link_id_empty);
- cw1200_queue_post_gc(stats, &gc_list);
- return 0;
-}
-
-void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats)
-{
- kfree(stats->link_map_cache);
- stats->link_map_cache = NULL;
-}
-
-void cw1200_queue_deinit(struct cw1200_queue *queue)
-{
- cw1200_queue_clear(queue);
- del_timer_sync(&queue->gc);
- INIT_LIST_HEAD(&queue->free_pool);
- kfree(queue->pool);
- kfree(queue->link_map_cache);
- queue->pool = NULL;
- queue->link_map_cache = NULL;
- queue->capacity = 0;
-}
-
-size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
- u32 link_id_map)
-{
- size_t ret;
- int i, bit;
- size_t map_capacity = queue->stats->map_capacity;
-
- if (!link_id_map)
- return 0;
-
- spin_lock_bh(&queue->lock);
- if (link_id_map == (u32)-1) {
- ret = queue->num_queued - queue->num_pending;
- } else {
- ret = 0;
- for (i = 0, bit = 1; i < map_capacity; ++i, bit <<= 1) {
- if (link_id_map & bit)
- ret += queue->link_map_cache[i];
- }
- }
- spin_unlock_bh(&queue->lock);
- return ret;
-}
-
-int cw1200_queue_put(struct cw1200_queue *queue,
- struct sk_buff *skb,
- struct cw1200_txpriv *txpriv)
-{
- int ret = 0;
- LIST_HEAD(gc_list);
- struct cw1200_queue_stats *stats = queue->stats;
-
- if (txpriv->link_id >= queue->stats->map_capacity)
- return -EINVAL;
-
- spin_lock_bh(&queue->lock);
- if (!WARN_ON(list_empty(&queue->free_pool))) {
- struct cw1200_queue_item *item = list_first_entry(
- &queue->free_pool, struct cw1200_queue_item, head);
- BUG_ON(item->skb);
-
- list_move_tail(&item->head, &queue->queue);
- item->skb = skb;
- item->txpriv = *txpriv;
- item->generation = 0;
- item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
- queue->queue_id,
- item->generation,
- item - queue->pool);
- item->queue_timestamp = jiffies;
-
- ++queue->num_queued;
- ++queue->link_map_cache[txpriv->link_id];
-
- spin_lock_bh(&stats->lock);
- ++stats->num_queued;
- ++stats->link_map_cache[txpriv->link_id];
- spin_unlock_bh(&stats->lock);
-
- /* TX may happen in parallel sometimes.
- * Leave extra queue slots so we don't overflow.
- */
- if (queue->overfull == false &&
- queue->num_queued >=
- (queue->capacity - (num_present_cpus() - 1))) {
- queue->overfull = true;
- __cw1200_queue_lock(queue);
- mod_timer(&queue->gc, jiffies);
- }
- } else {
- ret = -ENOENT;
- }
- spin_unlock_bh(&queue->lock);
- return ret;
-}
-
-int cw1200_queue_get(struct cw1200_queue *queue,
- u32 link_id_map,
- struct wsm_tx **tx,
- struct ieee80211_tx_info **tx_info,
- const struct cw1200_txpriv **txpriv)
-{
- int ret = -ENOENT;
- struct cw1200_queue_item *item;
- struct cw1200_queue_stats *stats = queue->stats;
- bool wakeup_stats = false;
-
- spin_lock_bh(&queue->lock);
- list_for_each_entry(item, &queue->queue, head) {
- if (link_id_map & BIT(item->txpriv.link_id)) {
- ret = 0;
- break;
- }
- }
-
- if (!WARN_ON(ret)) {
- *tx = (struct wsm_tx *)item->skb->data;
- *tx_info = IEEE80211_SKB_CB(item->skb);
- *txpriv = &item->txpriv;
- (*tx)->packet_id = item->packet_id;
- list_move_tail(&item->head, &queue->pending);
- ++queue->num_pending;
- --queue->link_map_cache[item->txpriv.link_id];
- item->xmit_timestamp = jiffies;
-
- spin_lock_bh(&stats->lock);
- --stats->num_queued;
- if (!--stats->link_map_cache[item->txpriv.link_id])
- wakeup_stats = true;
- spin_unlock_bh(&stats->lock);
- }
- spin_unlock_bh(&queue->lock);
- if (wakeup_stats)
- wake_up(&stats->wait_link_id_empty);
- return ret;
-}
-
-int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id)
-{
- int ret = 0;
- u8 queue_generation, queue_id, item_generation, item_id;
- struct cw1200_queue_item *item;
- struct cw1200_queue_stats *stats = queue->stats;
-
- cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
- &item_generation, &item_id);
-
- item = &queue->pool[item_id];
-
- spin_lock_bh(&queue->lock);
- BUG_ON(queue_id != queue->queue_id);
- if (queue_generation != queue->generation) {
- ret = -ENOENT;
- } else if (item_id >= (unsigned) queue->capacity) {
- WARN_ON(1);
- ret = -EINVAL;
- } else if (item->generation != item_generation) {
- WARN_ON(1);
- ret = -ENOENT;
- } else {
- --queue->num_pending;
- ++queue->link_map_cache[item->txpriv.link_id];
-
- spin_lock_bh(&stats->lock);
- ++stats->num_queued;
- ++stats->link_map_cache[item->txpriv.link_id];
- spin_unlock_bh(&stats->lock);
-
- item->generation = ++item_generation;
- item->packet_id = cw1200_queue_mk_packet_id(queue_generation,
- queue_id,
- item_generation,
- item_id);
- list_move(&item->head, &queue->queue);
- }
- spin_unlock_bh(&queue->lock);
- return ret;
-}
-
-int cw1200_queue_requeue_all(struct cw1200_queue *queue)
-{
- struct cw1200_queue_item *item, *tmp;
- struct cw1200_queue_stats *stats = queue->stats;
- spin_lock_bh(&queue->lock);
-
- list_for_each_entry_safe_reverse(item, tmp, &queue->pending, head) {
- --queue->num_pending;
- ++queue->link_map_cache[item->txpriv.link_id];
-
- spin_lock_bh(&stats->lock);
- ++stats->num_queued;
- ++stats->link_map_cache[item->txpriv.link_id];
- spin_unlock_bh(&stats->lock);
-
- ++item->generation;
- item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
- queue->queue_id,
- item->generation,
- item - queue->pool);
- list_move(&item->head, &queue->queue);
- }
- spin_unlock_bh(&queue->lock);
-
- return 0;
-}
-
-int cw1200_queue_remove(struct cw1200_queue *queue, u32 packet_id)
-{
- int ret = 0;
- u8 queue_generation, queue_id, item_generation, item_id;
- struct cw1200_queue_item *item;
- struct cw1200_queue_stats *stats = queue->stats;
- struct sk_buff *gc_skb = NULL;
- struct cw1200_txpriv gc_txpriv;
-
- cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
- &item_generation, &item_id);
-
- item = &queue->pool[item_id];
-
- spin_lock_bh(&queue->lock);
- BUG_ON(queue_id != queue->queue_id);
- if (queue_generation != queue->generation) {
- ret = -ENOENT;
- } else if (item_id >= (unsigned) queue->capacity) {
- WARN_ON(1);
- ret = -EINVAL;
- } else if (item->generation != item_generation) {
- WARN_ON(1);
- ret = -ENOENT;
- } else {
- gc_txpriv = item->txpriv;
- gc_skb = item->skb;
- item->skb = NULL;
- --queue->num_pending;
- --queue->num_queued;
- ++queue->num_sent;
- ++item->generation;
- /* Do not use list_move_tail here, but list_move:
- * try to utilize cache row.
- */
- list_move(&item->head, &queue->free_pool);
-
- if (queue->overfull &&
- (queue->num_queued <= (queue->capacity >> 1))) {
- queue->overfull = false;
- __cw1200_queue_unlock(queue);
- }
- }
- spin_unlock_bh(&queue->lock);
-
- if (gc_skb)
- stats->skb_dtor(stats->priv, gc_skb, &gc_txpriv);
-
- return ret;
-}
-
-int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
- struct sk_buff **skb,
- const struct cw1200_txpriv **txpriv)
-{
- int ret = 0;
- u8 queue_generation, queue_id, item_generation, item_id;
- struct cw1200_queue_item *item;
- cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
- &item_generation, &item_id);
-
- item = &queue->pool[item_id];
-
- spin_lock_bh(&queue->lock);
- BUG_ON(queue_id != queue->queue_id);
- if (queue_generation != queue->generation) {
- ret = -ENOENT;
- } else if (item_id >= (unsigned) queue->capacity) {
- WARN_ON(1);
- ret = -EINVAL;
- } else if (item->generation != item_generation) {
- WARN_ON(1);
- ret = -ENOENT;
- } else {
- *skb = item->skb;
- *txpriv = &item->txpriv;
- }
- spin_unlock_bh(&queue->lock);
- return ret;
-}
-
-void cw1200_queue_lock(struct cw1200_queue *queue)
-{
- spin_lock_bh(&queue->lock);
- __cw1200_queue_lock(queue);
- spin_unlock_bh(&queue->lock);
-}
-
-void cw1200_queue_unlock(struct cw1200_queue *queue)
-{
- spin_lock_bh(&queue->lock);
- __cw1200_queue_unlock(queue);
- spin_unlock_bh(&queue->lock);
-}
-
-bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
- unsigned long *timestamp,
- u32 pending_frame_id)
-{
- struct cw1200_queue_item *item;
- bool ret;
-
- spin_lock_bh(&queue->lock);
- ret = !list_empty(&queue->pending);
- if (ret) {
- list_for_each_entry(item, &queue->pending, head) {
- if (item->packet_id != pending_frame_id)
- if (time_before(item->xmit_timestamp,
- *timestamp))
- *timestamp = item->xmit_timestamp;
- }
- }
- spin_unlock_bh(&queue->lock);
- return ret;
-}
-
-bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
- u32 link_id_map)
-{
- bool empty = true;
-
- spin_lock_bh(&stats->lock);
- if (link_id_map == (u32)-1) {
- empty = stats->num_queued == 0;
- } else {
- int i;
- for (i = 0; i < stats->map_capacity; ++i) {
- if (link_id_map & BIT(i)) {
- if (stats->link_map_cache[i]) {
- empty = false;
- break;
- }
- }
- }
- }
- spin_unlock_bh(&stats->lock);
-
- return empty;
-}
+++ /dev/null
-/*
- * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_QUEUE_H_INCLUDED
-#define CW1200_QUEUE_H_INCLUDED
-
-/* private */ struct cw1200_queue_item;
-
-/* extern */ struct sk_buff;
-/* extern */ struct wsm_tx;
-/* extern */ struct cw1200_common;
-/* extern */ struct ieee80211_tx_queue_stats;
-/* extern */ struct cw1200_txpriv;
-
-/* forward */ struct cw1200_queue_stats;
-
-typedef void (*cw1200_queue_skb_dtor_t)(struct cw1200_common *priv,
- struct sk_buff *skb,
- const struct cw1200_txpriv *txpriv);
-
-struct cw1200_queue {
- struct cw1200_queue_stats *stats;
- size_t capacity;
- size_t num_queued;
- size_t num_pending;
- size_t num_sent;
- struct cw1200_queue_item *pool;
- struct list_head queue;
- struct list_head free_pool;
- struct list_head pending;
- int tx_locked_cnt;
- int *link_map_cache;
- bool overfull;
- spinlock_t lock; /* Protect queue entry */
- u8 queue_id;
- u8 generation;
- struct timer_list gc;
- unsigned long ttl;
-};
-
-struct cw1200_queue_stats {
- spinlock_t lock; /* Protect stats entry */
- int *link_map_cache;
- int num_queued;
- size_t map_capacity;
- wait_queue_head_t wait_link_id_empty;
- cw1200_queue_skb_dtor_t skb_dtor;
- struct cw1200_common *priv;
-};
-
-struct cw1200_txpriv {
- u8 link_id;
- u8 raw_link_id;
- u8 tid;
- u8 rate_id;
- u8 offset;
-};
-
-int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
- size_t map_capacity,
- cw1200_queue_skb_dtor_t skb_dtor,
- struct cw1200_common *priv);
-int cw1200_queue_init(struct cw1200_queue *queue,
- struct cw1200_queue_stats *stats,
- u8 queue_id,
- size_t capacity,
- unsigned long ttl);
-int cw1200_queue_clear(struct cw1200_queue *queue);
-void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats);
-void cw1200_queue_deinit(struct cw1200_queue *queue);
-
-size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
- u32 link_id_map);
-int cw1200_queue_put(struct cw1200_queue *queue,
- struct sk_buff *skb,
- struct cw1200_txpriv *txpriv);
-int cw1200_queue_get(struct cw1200_queue *queue,
- u32 link_id_map,
- struct wsm_tx **tx,
- struct ieee80211_tx_info **tx_info,
- const struct cw1200_txpriv **txpriv);
-int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id);
-int cw1200_queue_requeue_all(struct cw1200_queue *queue);
-int cw1200_queue_remove(struct cw1200_queue *queue,
- u32 packet_id);
-int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
- struct sk_buff **skb,
- const struct cw1200_txpriv **txpriv);
-void cw1200_queue_lock(struct cw1200_queue *queue);
-void cw1200_queue_unlock(struct cw1200_queue *queue);
-bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
- unsigned long *timestamp,
- u32 pending_frame_id);
-
-bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
- u32 link_id_map);
-
-static inline u8 cw1200_queue_get_queue_id(u32 packet_id)
-{
- return (packet_id >> 16) & 0xFF;
-}
-
-static inline u8 cw1200_queue_get_generation(u32 packet_id)
-{
- return (packet_id >> 8) & 0xFF;
-}
-
-#endif /* CW1200_QUEUE_H_INCLUDED */
+++ /dev/null
-/*
- * Scan implementation for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/sched.h>
-#include "cw1200.h"
-#include "scan.h"
-#include "sta.h"
-#include "pm.h"
-
-static void cw1200_scan_restart_delayed(struct cw1200_common *priv);
-
-static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)
-{
- int ret, i;
- int tmo = 2000;
-
- switch (priv->join_status) {
- case CW1200_JOIN_STATUS_PRE_STA:
- case CW1200_JOIN_STATUS_JOINING:
- return -EBUSY;
- default:
- break;
- }
-
- wiphy_dbg(priv->hw->wiphy, "[SCAN] hw req, type %d, %d channels, flags: 0x%x.\n",
- scan->type, scan->num_channels, scan->flags);
-
- for (i = 0; i < scan->num_channels; ++i)
- tmo += scan->ch[i].max_chan_time + 10;
-
- cancel_delayed_work_sync(&priv->clear_recent_scan_work);
- atomic_set(&priv->scan.in_progress, 1);
- atomic_set(&priv->recent_scan, 1);
- cw1200_pm_stay_awake(&priv->pm_state, msecs_to_jiffies(tmo));
- queue_delayed_work(priv->workqueue, &priv->scan.timeout,
- msecs_to_jiffies(tmo));
- ret = wsm_scan(priv, scan);
- if (ret) {
- atomic_set(&priv->scan.in_progress, 0);
- cancel_delayed_work_sync(&priv->scan.timeout);
- cw1200_scan_restart_delayed(priv);
- }
- return ret;
-}
-
-int cw1200_hw_scan(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_scan_request *hw_req)
-{
- struct cw1200_common *priv = hw->priv;
- struct cfg80211_scan_request *req = &hw_req->req;
- struct wsm_template_frame frame = {
- .frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
- };
- int i, ret;
-
- if (!priv->vif)
- return -EINVAL;
-
- /* Scan when P2P_GO corrupt firmware MiniAP mode */
- if (priv->join_status == CW1200_JOIN_STATUS_AP)
- return -EOPNOTSUPP;
-
- if (req->n_ssids == 1 && !req->ssids[0].ssid_len)
- req->n_ssids = 0;
-
- wiphy_dbg(hw->wiphy, "[SCAN] Scan request for %d SSIDs.\n",
- req->n_ssids);
-
- if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
- return -EINVAL;
-
- frame.skb = ieee80211_probereq_get(hw, priv->vif->addr, NULL, 0,
- req->ie_len);
- if (!frame.skb)
- return -ENOMEM;
-
- if (req->ie_len)
- memcpy(skb_put(frame.skb, req->ie_len), req->ie, req->ie_len);
-
- /* will be unlocked in cw1200_scan_work() */
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
-
- ret = wsm_set_template_frame(priv, &frame);
- if (!ret) {
- /* Host want to be the probe responder. */
- ret = wsm_set_probe_responder(priv, true);
- }
- if (ret) {
- mutex_unlock(&priv->conf_mutex);
- up(&priv->scan.lock);
- dev_kfree_skb(frame.skb);
- return ret;
- }
-
- wsm_lock_tx(priv);
-
- BUG_ON(priv->scan.req);
- priv->scan.req = req;
- priv->scan.n_ssids = 0;
- priv->scan.status = 0;
- priv->scan.begin = &req->channels[0];
- priv->scan.curr = priv->scan.begin;
- priv->scan.end = &req->channels[req->n_channels];
- priv->scan.output_power = priv->output_power;
-
- for (i = 0; i < req->n_ssids; ++i) {
- struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids];
- memcpy(&dst->ssid[0], req->ssids[i].ssid, sizeof(dst->ssid));
- dst->length = req->ssids[i].ssid_len;
- ++priv->scan.n_ssids;
- }
-
- mutex_unlock(&priv->conf_mutex);
-
- if (frame.skb)
- dev_kfree_skb(frame.skb);
- queue_work(priv->workqueue, &priv->scan.work);
- return 0;
-}
-
-void cw1200_scan_work(struct work_struct *work)
-{
- struct cw1200_common *priv = container_of(work, struct cw1200_common,
- scan.work);
- struct ieee80211_channel **it;
- struct wsm_scan scan = {
- .type = WSM_SCAN_TYPE_FOREGROUND,
- .flags = WSM_SCAN_FLAG_SPLIT_METHOD,
- };
- bool first_run = (priv->scan.begin == priv->scan.curr &&
- priv->scan.begin != priv->scan.end);
- int i;
-
- if (first_run) {
- /* Firmware gets crazy if scan request is sent
- * when STA is joined but not yet associated.
- * Force unjoin in this case.
- */
- if (cancel_delayed_work_sync(&priv->join_timeout) > 0)
- cw1200_join_timeout(&priv->join_timeout.work);
- }
-
- mutex_lock(&priv->conf_mutex);
-
- if (first_run) {
- if (priv->join_status == CW1200_JOIN_STATUS_STA &&
- !(priv->powersave_mode.mode & WSM_PSM_PS)) {
- struct wsm_set_pm pm = priv->powersave_mode;
- pm.mode = WSM_PSM_PS;
- cw1200_set_pm(priv, &pm);
- } else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
- /* FW bug: driver has to restart p2p-dev mode
- * after scan
- */
- cw1200_disable_listening(priv);
- }
- }
-
- if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {
- if (priv->scan.output_power != priv->output_power)
- wsm_set_output_power(priv, priv->output_power * 10);
- if (priv->join_status == CW1200_JOIN_STATUS_STA &&
- !(priv->powersave_mode.mode & WSM_PSM_PS))
- cw1200_set_pm(priv, &priv->powersave_mode);
-
- if (priv->scan.status < 0)
- wiphy_warn(priv->hw->wiphy,
- "[SCAN] Scan failed (%d).\n",
- priv->scan.status);
- else if (priv->scan.req)
- wiphy_dbg(priv->hw->wiphy,
- "[SCAN] Scan completed.\n");
- else
- wiphy_dbg(priv->hw->wiphy,
- "[SCAN] Scan canceled.\n");
-
- priv->scan.req = NULL;
- cw1200_scan_restart_delayed(priv);
- wsm_unlock_tx(priv);
- mutex_unlock(&priv->conf_mutex);
- ieee80211_scan_completed(priv->hw, priv->scan.status ? 1 : 0);
- up(&priv->scan.lock);
- return;
- } else {
- struct ieee80211_channel *first = *priv->scan.curr;
- for (it = priv->scan.curr + 1, i = 1;
- it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;
- ++it, ++i) {
- if ((*it)->band != first->band)
- break;
- if (((*it)->flags ^ first->flags) &
- IEEE80211_CHAN_NO_IR)
- break;
- if (!(first->flags & IEEE80211_CHAN_NO_IR) &&
- (*it)->max_power != first->max_power)
- break;
- }
- scan.band = first->band;
-
- if (priv->scan.req->no_cck)
- scan.max_tx_rate = WSM_TRANSMIT_RATE_6;
- else
- scan.max_tx_rate = WSM_TRANSMIT_RATE_1;
- scan.num_probes =
- (first->flags & IEEE80211_CHAN_NO_IR) ? 0 : 2;
- scan.num_ssids = priv->scan.n_ssids;
- scan.ssids = &priv->scan.ssids[0];
- scan.num_channels = it - priv->scan.curr;
- /* TODO: Is it optimal? */
- scan.probe_delay = 100;
- /* It is not stated in WSM specification, however
- * FW team says that driver may not use FG scan
- * when joined.
- */
- if (priv->join_status == CW1200_JOIN_STATUS_STA) {
- scan.type = WSM_SCAN_TYPE_BACKGROUND;
- scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
- }
- scan.ch = kzalloc(
- sizeof(struct wsm_scan_ch) * (it - priv->scan.curr),
- GFP_KERNEL);
- if (!scan.ch) {
- priv->scan.status = -ENOMEM;
- goto fail;
- }
- for (i = 0; i < scan.num_channels; ++i) {
- scan.ch[i].number = priv->scan.curr[i]->hw_value;
- if (priv->scan.curr[i]->flags & IEEE80211_CHAN_NO_IR) {
- scan.ch[i].min_chan_time = 50;
- scan.ch[i].max_chan_time = 100;
- } else {
- scan.ch[i].min_chan_time = 10;
- scan.ch[i].max_chan_time = 25;
- }
- }
- if (!(first->flags & IEEE80211_CHAN_NO_IR) &&
- priv->scan.output_power != first->max_power) {
- priv->scan.output_power = first->max_power;
- wsm_set_output_power(priv,
- priv->scan.output_power * 10);
- }
- priv->scan.status = cw1200_scan_start(priv, &scan);
- kfree(scan.ch);
- if (priv->scan.status)
- goto fail;
- priv->scan.curr = it;
- }
- mutex_unlock(&priv->conf_mutex);
- return;
-
-fail:
- priv->scan.curr = priv->scan.end;
- mutex_unlock(&priv->conf_mutex);
- queue_work(priv->workqueue, &priv->scan.work);
- return;
-}
-
-static void cw1200_scan_restart_delayed(struct cw1200_common *priv)
-{
- /* FW bug: driver has to restart p2p-dev mode after scan. */
- if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
- cw1200_enable_listening(priv);
- cw1200_update_filtering(priv);
- }
-
- if (priv->delayed_unjoin) {
- priv->delayed_unjoin = false;
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- } else if (priv->delayed_link_loss) {
- wiphy_dbg(priv->hw->wiphy, "[CQM] Requeue BSS loss.\n");
- priv->delayed_link_loss = 0;
- cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
- }
-}
-
-static void cw1200_scan_complete(struct cw1200_common *priv)
-{
- queue_delayed_work(priv->workqueue, &priv->clear_recent_scan_work, HZ);
- if (priv->scan.direct_probe) {
- wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe complete.\n");
- cw1200_scan_restart_delayed(priv);
- priv->scan.direct_probe = 0;
- up(&priv->scan.lock);
- wsm_unlock_tx(priv);
- } else {
- cw1200_scan_work(&priv->scan.work);
- }
-}
-
-void cw1200_scan_failed_cb(struct cw1200_common *priv)
-{
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
- /* STA is stopped. */
- return;
-
- if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
- priv->scan.status = -EIO;
- queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
- }
-}
-
-
-void cw1200_scan_complete_cb(struct cw1200_common *priv,
- struct wsm_scan_complete *arg)
-{
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
- /* STA is stopped. */
- return;
-
- if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
- priv->scan.status = 1;
- queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
- }
-}
-
-void cw1200_clear_recent_scan_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common,
- clear_recent_scan_work.work);
- atomic_xchg(&priv->recent_scan, 0);
-}
-
-void cw1200_scan_timeout(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, scan.timeout.work);
- if (atomic_xchg(&priv->scan.in_progress, 0)) {
- if (priv->scan.status > 0) {
- priv->scan.status = 0;
- } else if (!priv->scan.status) {
- wiphy_warn(priv->hw->wiphy,
- "Timeout waiting for scan complete notification.\n");
- priv->scan.status = -ETIMEDOUT;
- priv->scan.curr = priv->scan.end;
- wsm_stop_scan(priv);
- }
- cw1200_scan_complete(priv);
- }
-}
-
-void cw1200_probe_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, scan.probe_work.work);
- u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
- struct cw1200_queue *queue = &priv->tx_queue[queue_id];
- const struct cw1200_txpriv *txpriv;
- struct wsm_tx *wsm;
- struct wsm_template_frame frame = {
- .frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
- };
- struct wsm_ssid ssids[1] = {{
- .length = 0,
- } };
- struct wsm_scan_ch ch[1] = {{
- .min_chan_time = 0,
- .max_chan_time = 10,
- } };
- struct wsm_scan scan = {
- .type = WSM_SCAN_TYPE_FOREGROUND,
- .num_probes = 1,
- .probe_delay = 0,
- .num_channels = 1,
- .ssids = ssids,
- .ch = ch,
- };
- u8 *ies;
- size_t ies_len;
- int ret;
-
- wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe work.\n");
-
- mutex_lock(&priv->conf_mutex);
- if (down_trylock(&priv->scan.lock)) {
- /* Scan is already in progress. Requeue self. */
- schedule();
- queue_delayed_work(priv->workqueue, &priv->scan.probe_work,
- msecs_to_jiffies(100));
- mutex_unlock(&priv->conf_mutex);
- return;
- }
-
- /* Make sure we still have a pending probe req */
- if (cw1200_queue_get_skb(queue, priv->pending_frame_id,
- &frame.skb, &txpriv)) {
- up(&priv->scan.lock);
- mutex_unlock(&priv->conf_mutex);
- wsm_unlock_tx(priv);
- return;
- }
- wsm = (struct wsm_tx *)frame.skb->data;
- scan.max_tx_rate = wsm->max_tx_rate;
- scan.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
- WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
- if (priv->join_status == CW1200_JOIN_STATUS_STA ||
- priv->join_status == CW1200_JOIN_STATUS_IBSS) {
- scan.type = WSM_SCAN_TYPE_BACKGROUND;
- scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
- }
- ch[0].number = priv->channel->hw_value;
-
- skb_pull(frame.skb, txpriv->offset);
-
- ies = &frame.skb->data[sizeof(struct ieee80211_hdr_3addr)];
- ies_len = frame.skb->len - sizeof(struct ieee80211_hdr_3addr);
-
- if (ies_len) {
- u8 *ssidie =
- (u8 *)cfg80211_find_ie(WLAN_EID_SSID, ies, ies_len);
- if (ssidie && ssidie[1] && ssidie[1] <= sizeof(ssids[0].ssid)) {
- u8 *nextie = &ssidie[2 + ssidie[1]];
- /* Remove SSID from the IE list. It has to be provided
- * as a separate argument in cw1200_scan_start call
- */
-
- /* Store SSID localy */
- ssids[0].length = ssidie[1];
- memcpy(ssids[0].ssid, &ssidie[2], ssids[0].length);
- scan.num_ssids = 1;
-
- /* Remove SSID from IE list */
- ssidie[1] = 0;
- memmove(&ssidie[2], nextie, &ies[ies_len] - nextie);
- skb_trim(frame.skb, frame.skb->len - ssids[0].length);
- }
- }
-
- /* FW bug: driver has to restart p2p-dev mode after scan */
- if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
- cw1200_disable_listening(priv);
- ret = wsm_set_template_frame(priv, &frame);
- priv->scan.direct_probe = 1;
- if (!ret) {
- wsm_flush_tx(priv);
- ret = cw1200_scan_start(priv, &scan);
- }
- mutex_unlock(&priv->conf_mutex);
-
- skb_push(frame.skb, txpriv->offset);
- if (!ret)
- IEEE80211_SKB_CB(frame.skb)->flags |= IEEE80211_TX_STAT_ACK;
- BUG_ON(cw1200_queue_remove(queue, priv->pending_frame_id));
-
- if (ret) {
- priv->scan.direct_probe = 0;
- up(&priv->scan.lock);
- wsm_unlock_tx(priv);
- }
-
- return;
-}
+++ /dev/null
-/*
- * Scan interface for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef SCAN_H_INCLUDED
-#define SCAN_H_INCLUDED
-
-#include <linux/semaphore.h>
-#include "wsm.h"
-
-/* external */ struct sk_buff;
-/* external */ struct cfg80211_scan_request;
-/* external */ struct ieee80211_channel;
-/* external */ struct ieee80211_hw;
-/* external */ struct work_struct;
-
-struct cw1200_scan {
- struct semaphore lock;
- struct work_struct work;
- struct delayed_work timeout;
- struct cfg80211_scan_request *req;
- struct ieee80211_channel **begin;
- struct ieee80211_channel **curr;
- struct ieee80211_channel **end;
- struct wsm_ssid ssids[WSM_SCAN_MAX_NUM_OF_SSIDS];
- int output_power;
- int n_ssids;
- int status;
- atomic_t in_progress;
- /* Direct probe requests workaround */
- struct delayed_work probe_work;
- int direct_probe;
-};
-
-int cw1200_hw_scan(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_scan_request *hw_req);
-void cw1200_scan_work(struct work_struct *work);
-void cw1200_scan_timeout(struct work_struct *work);
-void cw1200_clear_recent_scan_work(struct work_struct *work);
-void cw1200_scan_complete_cb(struct cw1200_common *priv,
- struct wsm_scan_complete *arg);
-void cw1200_scan_failed_cb(struct cw1200_common *priv);
-
-/* ******************************************************************** */
-/* Raw probe requests TX workaround */
-void cw1200_probe_work(struct work_struct *work);
-
-#endif
+++ /dev/null
-/*
- * Mac80211 STA API for ST-Ericsson CW1200 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/firmware.h>
-#include <linux/module.h>
-#include <linux/etherdevice.h>
-
-#include "cw1200.h"
-#include "sta.h"
-#include "fwio.h"
-#include "bh.h"
-#include "debug.h"
-
-#ifndef ERP_INFO_BYTE_OFFSET
-#define ERP_INFO_BYTE_OFFSET 2
-#endif
-
-static void cw1200_do_join(struct cw1200_common *priv);
-static void cw1200_do_unjoin(struct cw1200_common *priv);
-
-static int cw1200_upload_beacon(struct cw1200_common *priv);
-static int cw1200_upload_pspoll(struct cw1200_common *priv);
-static int cw1200_upload_null(struct cw1200_common *priv);
-static int cw1200_upload_qosnull(struct cw1200_common *priv);
-static int cw1200_start_ap(struct cw1200_common *priv);
-static int cw1200_update_beaconing(struct cw1200_common *priv);
-static int cw1200_enable_beaconing(struct cw1200_common *priv,
- bool enable);
-static void __cw1200_sta_notify(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum sta_notify_cmd notify_cmd,
- int link_id);
-static int __cw1200_flush(struct cw1200_common *priv, bool drop);
-
-static inline void __cw1200_free_event_queue(struct list_head *list)
-{
- struct cw1200_wsm_event *event, *tmp;
- list_for_each_entry_safe(event, tmp, list, link) {
- list_del(&event->link);
- kfree(event);
- }
-}
-
-/* ******************************************************************** */
-/* STA API */
-
-int cw1200_start(struct ieee80211_hw *dev)
-{
- struct cw1200_common *priv = dev->priv;
- int ret = 0;
-
- cw1200_pm_stay_awake(&priv->pm_state, HZ);
-
- mutex_lock(&priv->conf_mutex);
-
- /* default EDCA */
- WSM_EDCA_SET(&priv->edca, 0, 0x0002, 0x0003, 0x0007, 47, 0xc8, false);
- WSM_EDCA_SET(&priv->edca, 1, 0x0002, 0x0007, 0x000f, 94, 0xc8, false);
- WSM_EDCA_SET(&priv->edca, 2, 0x0003, 0x000f, 0x03ff, 0, 0xc8, false);
- WSM_EDCA_SET(&priv->edca, 3, 0x0007, 0x000f, 0x03ff, 0, 0xc8, false);
- ret = wsm_set_edca_params(priv, &priv->edca);
- if (ret)
- goto out;
-
- ret = cw1200_set_uapsd_param(priv, &priv->edca);
- if (ret)
- goto out;
-
- priv->setbssparams_done = false;
-
- memcpy(priv->mac_addr, dev->wiphy->perm_addr, ETH_ALEN);
- priv->mode = NL80211_IFTYPE_MONITOR;
- priv->wep_default_key_id = -1;
-
- priv->cqm_beacon_loss_count = 10;
-
- ret = cw1200_setup_mac(priv);
- if (ret)
- goto out;
-
-out:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-void cw1200_stop(struct ieee80211_hw *dev)
-{
- struct cw1200_common *priv = dev->priv;
- LIST_HEAD(list);
- int i;
-
- wsm_lock_tx(priv);
-
- while (down_trylock(&priv->scan.lock)) {
- /* Scan is in progress. Force it to stop. */
- priv->scan.req = NULL;
- schedule();
- }
- up(&priv->scan.lock);
-
- cancel_delayed_work_sync(&priv->scan.probe_work);
- cancel_delayed_work_sync(&priv->scan.timeout);
- cancel_delayed_work_sync(&priv->clear_recent_scan_work);
- cancel_delayed_work_sync(&priv->join_timeout);
- cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
- cancel_work_sync(&priv->unjoin_work);
- cancel_delayed_work_sync(&priv->link_id_gc_work);
- flush_workqueue(priv->workqueue);
- del_timer_sync(&priv->mcast_timeout);
- mutex_lock(&priv->conf_mutex);
- priv->mode = NL80211_IFTYPE_UNSPECIFIED;
- priv->listening = false;
-
- spin_lock(&priv->event_queue_lock);
- list_splice_init(&priv->event_queue, &list);
- spin_unlock(&priv->event_queue_lock);
- __cw1200_free_event_queue(&list);
-
-
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- priv->join_pending = false;
-
- for (i = 0; i < 4; i++)
- cw1200_queue_clear(&priv->tx_queue[i]);
- mutex_unlock(&priv->conf_mutex);
- tx_policy_clean(priv);
-
- /* HACK! */
- if (atomic_xchg(&priv->tx_lock, 1) != 1)
- pr_debug("[STA] TX is force-unlocked due to stop request.\n");
-
- wsm_unlock_tx(priv);
- atomic_xchg(&priv->tx_lock, 0); /* for recovery to work */
-}
-
-static int cw1200_bssloss_mitigation = 1;
-module_param(cw1200_bssloss_mitigation, int, 0644);
-MODULE_PARM_DESC(cw1200_bssloss_mitigation, "BSS Loss mitigation. 0 == disabled, 1 == enabled (default)");
-
-
-void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
- int init, int good, int bad)
-{
- int tx = 0;
-
- priv->delayed_link_loss = 0;
- cancel_work_sync(&priv->bss_params_work);
-
- pr_debug("[STA] CQM BSSLOSS_SM: state: %d init %d good %d bad: %d txlock: %d uj: %d\n",
- priv->bss_loss_state,
- init, good, bad,
- atomic_read(&priv->tx_lock),
- priv->delayed_unjoin);
-
- /* If we have a pending unjoin */
- if (priv->delayed_unjoin)
- return;
-
- if (init) {
- queue_delayed_work(priv->workqueue,
- &priv->bss_loss_work,
- HZ);
- priv->bss_loss_state = 0;
-
- /* Skip the confimration procedure in P2P case */
- if (!priv->vif->p2p && !atomic_read(&priv->tx_lock))
- tx = 1;
- } else if (good) {
- cancel_delayed_work_sync(&priv->bss_loss_work);
- priv->bss_loss_state = 0;
- queue_work(priv->workqueue, &priv->bss_params_work);
- } else if (bad) {
- /* XXX Should we just keep going until we time out? */
- if (priv->bss_loss_state < 3)
- tx = 1;
- } else {
- cancel_delayed_work_sync(&priv->bss_loss_work);
- priv->bss_loss_state = 0;
- }
-
- /* Bypass mitigation if it's disabled */
- if (!cw1200_bssloss_mitigation)
- tx = 0;
-
- /* Spit out a NULL packet to our AP if necessary */
- if (tx) {
- struct sk_buff *skb;
-
- priv->bss_loss_state++;
-
- skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
- WARN_ON(!skb);
- if (skb)
- cw1200_tx(priv->hw, NULL, skb);
- }
-}
-
-int cw1200_add_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif)
-{
- int ret;
- struct cw1200_common *priv = dev->priv;
- /* __le32 auto_calibration_mode = __cpu_to_le32(1); */
-
- vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
- IEEE80211_VIF_SUPPORTS_UAPSD |
- IEEE80211_VIF_SUPPORTS_CQM_RSSI;
-
- mutex_lock(&priv->conf_mutex);
-
- if (priv->mode != NL80211_IFTYPE_MONITOR) {
- mutex_unlock(&priv->conf_mutex);
- return -EOPNOTSUPP;
- }
-
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_ADHOC:
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_AP:
- priv->mode = vif->type;
- break;
- default:
- mutex_unlock(&priv->conf_mutex);
- return -EOPNOTSUPP;
- }
-
- priv->vif = vif;
- memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
- ret = cw1200_setup_mac(priv);
- /* Enable auto-calibration */
- /* Exception in subsequent channel switch; disabled.
- * wsm_write_mib(priv, WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE,
- * &auto_calibration_mode, sizeof(auto_calibration_mode));
- */
-
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-void cw1200_remove_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif)
-{
- struct cw1200_common *priv = dev->priv;
- struct wsm_reset reset = {
- .reset_statistics = true,
- };
- int i;
-
- mutex_lock(&priv->conf_mutex);
- switch (priv->join_status) {
- case CW1200_JOIN_STATUS_JOINING:
- case CW1200_JOIN_STATUS_PRE_STA:
- case CW1200_JOIN_STATUS_STA:
- case CW1200_JOIN_STATUS_IBSS:
- wsm_lock_tx(priv);
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- break;
- case CW1200_JOIN_STATUS_AP:
- for (i = 0; priv->link_id_map; ++i) {
- if (priv->link_id_map & BIT(i)) {
- reset.link_id = i;
- wsm_reset(priv, &reset);
- priv->link_id_map &= ~BIT(i);
- }
- }
- memset(priv->link_id_db, 0, sizeof(priv->link_id_db));
- priv->sta_asleep_mask = 0;
- priv->enable_beacon = false;
- priv->tx_multicast = false;
- priv->aid0_bit_set = false;
- priv->buffered_multicasts = false;
- priv->pspoll_mask = 0;
- reset.link_id = 0;
- wsm_reset(priv, &reset);
- break;
- case CW1200_JOIN_STATUS_MONITOR:
- cw1200_update_listening(priv, false);
- break;
- default:
- break;
- }
- priv->vif = NULL;
- priv->mode = NL80211_IFTYPE_MONITOR;
- eth_zero_addr(priv->mac_addr);
- memset(&priv->p2p_ps_modeinfo, 0, sizeof(priv->p2p_ps_modeinfo));
- cw1200_free_keys(priv);
- cw1200_setup_mac(priv);
- priv->listening = false;
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- if (!__cw1200_flush(priv, true))
- wsm_unlock_tx(priv);
-
- mutex_unlock(&priv->conf_mutex);
-}
-
-int cw1200_change_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum nl80211_iftype new_type,
- bool p2p)
-{
- int ret = 0;
- pr_debug("change_interface new: %d (%d), old: %d (%d)\n", new_type,
- p2p, vif->type, vif->p2p);
-
- if (new_type != vif->type || vif->p2p != p2p) {
- cw1200_remove_interface(dev, vif);
- vif->type = new_type;
- vif->p2p = p2p;
- ret = cw1200_add_interface(dev, vif);
- }
-
- return ret;
-}
-
-int cw1200_config(struct ieee80211_hw *dev, u32 changed)
-{
- int ret = 0;
- struct cw1200_common *priv = dev->priv;
- struct ieee80211_conf *conf = &dev->conf;
-
- pr_debug("CONFIG CHANGED: %08x\n", changed);
-
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
- /* TODO: IEEE80211_CONF_CHANGE_QOS */
- /* TODO: IEEE80211_CONF_CHANGE_LISTEN_INTERVAL */
-
- if (changed & IEEE80211_CONF_CHANGE_POWER) {
- priv->output_power = conf->power_level;
- pr_debug("[STA] TX power: %d\n", priv->output_power);
- wsm_set_output_power(priv, priv->output_power * 10);
- }
-
- if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) &&
- (priv->channel != conf->chandef.chan)) {
- struct ieee80211_channel *ch = conf->chandef.chan;
- struct wsm_switch_channel channel = {
- .channel_number = ch->hw_value,
- };
- pr_debug("[STA] Freq %d (wsm ch: %d).\n",
- ch->center_freq, ch->hw_value);
-
- /* __cw1200_flush() implicitly locks tx, if successful */
- if (!__cw1200_flush(priv, false)) {
- if (!wsm_switch_channel(priv, &channel)) {
- ret = wait_event_timeout(priv->channel_switch_done,
- !priv->channel_switch_in_progress,
- 3 * HZ);
- if (ret) {
- /* Already unlocks if successful */
- priv->channel = ch;
- ret = 0;
- } else {
- ret = -ETIMEDOUT;
- }
- } else {
- /* Unlock if switch channel fails */
- wsm_unlock_tx(priv);
- }
- }
- }
-
- if (changed & IEEE80211_CONF_CHANGE_PS) {
- if (!(conf->flags & IEEE80211_CONF_PS))
- priv->powersave_mode.mode = WSM_PSM_ACTIVE;
- else if (conf->dynamic_ps_timeout <= 0)
- priv->powersave_mode.mode = WSM_PSM_PS;
- else
- priv->powersave_mode.mode = WSM_PSM_FAST_PS;
-
- /* Firmware requires that value for this 1-byte field must
- * be specified in units of 500us. Values above the 128ms
- * threshold are not supported.
- */
- if (conf->dynamic_ps_timeout >= 0x80)
- priv->powersave_mode.fast_psm_idle_period = 0xFF;
- else
- priv->powersave_mode.fast_psm_idle_period =
- conf->dynamic_ps_timeout << 1;
-
- if (priv->join_status == CW1200_JOIN_STATUS_STA &&
- priv->bss_params.aid)
- cw1200_set_pm(priv, &priv->powersave_mode);
- }
-
- if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
- /* TBD: It looks like it's transparent
- * there's a monitor interface present -- use this
- * to determine for example whether to calculate
- * timestamps for packets or not, do not use instead
- * of filter flags!
- */
- }
-
- if (changed & IEEE80211_CONF_CHANGE_IDLE) {
- struct wsm_operational_mode mode = {
- .power_mode = cw1200_power_mode,
- .disable_more_flag_usage = true,
- };
-
- wsm_lock_tx(priv);
- /* Disable p2p-dev mode forced by TX request */
- if ((priv->join_status == CW1200_JOIN_STATUS_MONITOR) &&
- (conf->flags & IEEE80211_CONF_IDLE) &&
- !priv->listening) {
- cw1200_disable_listening(priv);
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- }
- wsm_set_operational_mode(priv, &mode);
- wsm_unlock_tx(priv);
- }
-
- if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
- pr_debug("[STA] Retry limits: %d (long), %d (short).\n",
- conf->long_frame_max_tx_count,
- conf->short_frame_max_tx_count);
- spin_lock_bh(&priv->tx_policy_cache.lock);
- priv->long_frame_max_tx_count = conf->long_frame_max_tx_count;
- priv->short_frame_max_tx_count =
- (conf->short_frame_max_tx_count < 0x0F) ?
- conf->short_frame_max_tx_count : 0x0F;
- priv->hw->max_rate_tries = priv->short_frame_max_tx_count;
- spin_unlock_bh(&priv->tx_policy_cache.lock);
- }
- mutex_unlock(&priv->conf_mutex);
- up(&priv->scan.lock);
- return ret;
-}
-
-void cw1200_update_filtering(struct cw1200_common *priv)
-{
- int ret;
- bool bssid_filtering = !priv->rx_filter.bssid;
- bool is_p2p = priv->vif && priv->vif->p2p;
- bool is_sta = priv->vif && NL80211_IFTYPE_STATION == priv->vif->type;
-
- static struct wsm_beacon_filter_control bf_ctrl;
- static struct wsm_mib_beacon_filter_table bf_tbl = {
- .entry[0].ie_id = WLAN_EID_VENDOR_SPECIFIC,
- .entry[0].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
- WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
- WSM_BEACON_FILTER_IE_HAS_APPEARED,
- .entry[0].oui[0] = 0x50,
- .entry[0].oui[1] = 0x6F,
- .entry[0].oui[2] = 0x9A,
- .entry[1].ie_id = WLAN_EID_HT_OPERATION,
- .entry[1].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
- WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
- WSM_BEACON_FILTER_IE_HAS_APPEARED,
- .entry[2].ie_id = WLAN_EID_ERP_INFO,
- .entry[2].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
- WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
- WSM_BEACON_FILTER_IE_HAS_APPEARED,
- };
-
- if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE)
- return;
- else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
- bssid_filtering = false;
-
- if (priv->disable_beacon_filter) {
- bf_ctrl.enabled = 0;
- bf_ctrl.bcn_count = 1;
- bf_tbl.num = __cpu_to_le32(0);
- } else if (is_p2p || !is_sta) {
- bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE |
- WSM_BEACON_FILTER_AUTO_ERP;
- bf_ctrl.bcn_count = 0;
- bf_tbl.num = __cpu_to_le32(2);
- } else {
- bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE;
- bf_ctrl.bcn_count = 0;
- bf_tbl.num = __cpu_to_le32(3);
- }
-
- /* When acting as p2p client being connected to p2p GO, in order to
- * receive frames from a different p2p device, turn off bssid filter.
- *
- * WARNING: FW dependency!
- * This can only be used with FW WSM371 and its successors.
- * In that FW version even with bssid filter turned off,
- * device will block most of the unwanted frames.
- */
- if (is_p2p)
- bssid_filtering = false;
-
- ret = wsm_set_rx_filter(priv, &priv->rx_filter);
- if (!ret)
- ret = wsm_set_beacon_filter_table(priv, &bf_tbl);
- if (!ret)
- ret = wsm_beacon_filter_control(priv, &bf_ctrl);
- if (!ret)
- ret = wsm_set_bssid_filtering(priv, bssid_filtering);
- if (!ret)
- ret = wsm_set_multicast_filter(priv, &priv->multicast_filter);
- if (ret)
- wiphy_err(priv->hw->wiphy,
- "Update filtering failed: %d.\n", ret);
- return;
-}
-
-void cw1200_update_filtering_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common,
- update_filtering_work);
-
- cw1200_update_filtering(priv);
-}
-
-void cw1200_set_beacon_wakeup_period_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common,
- set_beacon_wakeup_period_work);
-
- wsm_set_beacon_wakeup_period(priv,
- priv->beacon_int * priv->join_dtim_period >
- MAX_BEACON_SKIP_TIME_MS ? 1 :
- priv->join_dtim_period, 0);
-}
-
-u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
- struct netdev_hw_addr_list *mc_list)
-{
- static u8 broadcast_ipv6[ETH_ALEN] = {
- 0x33, 0x33, 0x00, 0x00, 0x00, 0x01
- };
- static u8 broadcast_ipv4[ETH_ALEN] = {
- 0x01, 0x00, 0x5e, 0x00, 0x00, 0x01
- };
- struct cw1200_common *priv = hw->priv;
- struct netdev_hw_addr *ha;
- int count = 0;
-
- /* Disable multicast filtering */
- priv->has_multicast_subscription = false;
- memset(&priv->multicast_filter, 0x00, sizeof(priv->multicast_filter));
-
- if (netdev_hw_addr_list_count(mc_list) > WSM_MAX_GRP_ADDRTABLE_ENTRIES)
- return 0;
-
- /* Enable if requested */
- netdev_hw_addr_list_for_each(ha, mc_list) {
- pr_debug("[STA] multicast: %pM\n", ha->addr);
- memcpy(&priv->multicast_filter.macaddrs[count],
- ha->addr, ETH_ALEN);
- if (!ether_addr_equal(ha->addr, broadcast_ipv4) &&
- !ether_addr_equal(ha->addr, broadcast_ipv6))
- priv->has_multicast_subscription = true;
- count++;
- }
-
- if (count) {
- priv->multicast_filter.enable = __cpu_to_le32(1);
- priv->multicast_filter.num_addrs = __cpu_to_le32(count);
- }
-
- return netdev_hw_addr_list_count(mc_list);
-}
-
-void cw1200_configure_filter(struct ieee80211_hw *dev,
- unsigned int changed_flags,
- unsigned int *total_flags,
- u64 multicast)
-{
- struct cw1200_common *priv = dev->priv;
- bool listening = !!(*total_flags &
- (FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC |
- FIF_PROBE_REQ));
-
- *total_flags &= FIF_OTHER_BSS |
- FIF_FCSFAIL |
- FIF_BCN_PRBRESP_PROMISC |
- FIF_PROBE_REQ;
-
- down(&priv->scan.lock);
- mutex_lock(&priv->conf_mutex);
-
- priv->rx_filter.promiscuous = 0;
- priv->rx_filter.bssid = (*total_flags & (FIF_OTHER_BSS |
- FIF_PROBE_REQ)) ? 1 : 0;
- priv->rx_filter.fcs = (*total_flags & FIF_FCSFAIL) ? 1 : 0;
- priv->disable_beacon_filter = !(*total_flags &
- (FIF_BCN_PRBRESP_PROMISC |
- FIF_PROBE_REQ));
- if (priv->listening != listening) {
- priv->listening = listening;
- wsm_lock_tx(priv);
- cw1200_update_listening(priv, listening);
- wsm_unlock_tx(priv);
- }
- cw1200_update_filtering(priv);
- mutex_unlock(&priv->conf_mutex);
- up(&priv->scan.lock);
-}
-
-int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
- u16 queue, const struct ieee80211_tx_queue_params *params)
-{
- struct cw1200_common *priv = dev->priv;
- int ret = 0;
- /* To prevent re-applying PM request OID again and again*/
- bool old_uapsd_flags;
-
- mutex_lock(&priv->conf_mutex);
-
- if (queue < dev->queues) {
- old_uapsd_flags = le16_to_cpu(priv->uapsd_info.uapsd_flags);
-
- WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0);
- ret = wsm_set_tx_queue_params(priv,
- &priv->tx_queue_params.params[queue], queue);
- if (ret) {
- ret = -EINVAL;
- goto out;
- }
-
- WSM_EDCA_SET(&priv->edca, queue, params->aifs,
- params->cw_min, params->cw_max,
- params->txop, 0xc8,
- params->uapsd);
- ret = wsm_set_edca_params(priv, &priv->edca);
- if (ret) {
- ret = -EINVAL;
- goto out;
- }
-
- if (priv->mode == NL80211_IFTYPE_STATION) {
- ret = cw1200_set_uapsd_param(priv, &priv->edca);
- if (!ret && priv->setbssparams_done &&
- (priv->join_status == CW1200_JOIN_STATUS_STA) &&
- (old_uapsd_flags != le16_to_cpu(priv->uapsd_info.uapsd_flags)))
- ret = cw1200_set_pm(priv, &priv->powersave_mode);
- }
- } else {
- ret = -EINVAL;
- }
-
-out:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-int cw1200_get_stats(struct ieee80211_hw *dev,
- struct ieee80211_low_level_stats *stats)
-{
- struct cw1200_common *priv = dev->priv;
-
- memcpy(stats, &priv->stats, sizeof(*stats));
- return 0;
-}
-
-int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
-{
- struct wsm_set_pm pm = *arg;
-
- if (priv->uapsd_info.uapsd_flags != 0)
- pm.mode &= ~WSM_PSM_FAST_PS_FLAG;
-
- if (memcmp(&pm, &priv->firmware_ps_mode,
- sizeof(struct wsm_set_pm))) {
- priv->firmware_ps_mode = pm;
- return wsm_set_pm(priv, &pm);
- } else {
- return 0;
- }
-}
-
-int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
-{
- int ret = -EOPNOTSUPP;
- struct cw1200_common *priv = dev->priv;
- struct ieee80211_key_seq seq;
-
- mutex_lock(&priv->conf_mutex);
-
- if (cmd == SET_KEY) {
- u8 *peer_addr = NULL;
- int pairwise = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ?
- 1 : 0;
- int idx = cw1200_alloc_key(priv);
- struct wsm_add_key *wsm_key = &priv->keys[idx];
-
- if (idx < 0) {
- ret = -EINVAL;
- goto finally;
- }
-
- if (sta)
- peer_addr = sta->addr;
-
- key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE |
- IEEE80211_KEY_FLAG_RESERVE_TAILROOM;
-
- switch (key->cipher) {
- case WLAN_CIPHER_SUITE_WEP40:
- case WLAN_CIPHER_SUITE_WEP104:
- if (key->keylen > 16) {
- cw1200_free_key(priv, idx);
- ret = -EINVAL;
- goto finally;
- }
-
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_WEP_PAIRWISE;
- memcpy(wsm_key->wep_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->wep_pairwise.keydata,
- &key->key[0], key->keylen);
- wsm_key->wep_pairwise.keylen = key->keylen;
- } else {
- wsm_key->type = WSM_KEY_TYPE_WEP_DEFAULT;
- memcpy(wsm_key->wep_group.keydata,
- &key->key[0], key->keylen);
- wsm_key->wep_group.keylen = key->keylen;
- wsm_key->wep_group.keyid = key->keyidx;
- }
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- ieee80211_get_key_rx_seq(key, 0, &seq);
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_TKIP_PAIRWISE;
- memcpy(wsm_key->tkip_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->tkip_pairwise.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->tkip_pairwise.tx_mic_key,
- &key->key[16], 8);
- memcpy(wsm_key->tkip_pairwise.rx_mic_key,
- &key->key[24], 8);
- } else {
- size_t mic_offset =
- (priv->mode == NL80211_IFTYPE_AP) ?
- 16 : 24;
- wsm_key->type = WSM_KEY_TYPE_TKIP_GROUP;
- memcpy(wsm_key->tkip_group.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->tkip_group.rx_mic_key,
- &key->key[mic_offset], 8);
-
- wsm_key->tkip_group.rx_seqnum[0] = seq.tkip.iv16 & 0xff;
- wsm_key->tkip_group.rx_seqnum[1] = (seq.tkip.iv16 >> 8) & 0xff;
- wsm_key->tkip_group.rx_seqnum[2] = seq.tkip.iv32 & 0xff;
- wsm_key->tkip_group.rx_seqnum[3] = (seq.tkip.iv32 >> 8) & 0xff;
- wsm_key->tkip_group.rx_seqnum[4] = (seq.tkip.iv32 >> 16) & 0xff;
- wsm_key->tkip_group.rx_seqnum[5] = (seq.tkip.iv32 >> 24) & 0xff;
- wsm_key->tkip_group.rx_seqnum[6] = 0;
- wsm_key->tkip_group.rx_seqnum[7] = 0;
-
- wsm_key->tkip_group.keyid = key->keyidx;
- }
- break;
- case WLAN_CIPHER_SUITE_CCMP:
- ieee80211_get_key_rx_seq(key, 0, &seq);
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_AES_PAIRWISE;
- memcpy(wsm_key->aes_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->aes_pairwise.keydata,
- &key->key[0], 16);
- } else {
- wsm_key->type = WSM_KEY_TYPE_AES_GROUP;
- memcpy(wsm_key->aes_group.keydata,
- &key->key[0], 16);
-
- wsm_key->aes_group.rx_seqnum[0] = seq.ccmp.pn[5];
- wsm_key->aes_group.rx_seqnum[1] = seq.ccmp.pn[4];
- wsm_key->aes_group.rx_seqnum[2] = seq.ccmp.pn[3];
- wsm_key->aes_group.rx_seqnum[3] = seq.ccmp.pn[2];
- wsm_key->aes_group.rx_seqnum[4] = seq.ccmp.pn[1];
- wsm_key->aes_group.rx_seqnum[5] = seq.ccmp.pn[0];
- wsm_key->aes_group.rx_seqnum[6] = 0;
- wsm_key->aes_group.rx_seqnum[7] = 0;
- wsm_key->aes_group.keyid = key->keyidx;
- }
- break;
- case WLAN_CIPHER_SUITE_SMS4:
- if (pairwise) {
- wsm_key->type = WSM_KEY_TYPE_WAPI_PAIRWISE;
- memcpy(wsm_key->wapi_pairwise.peer,
- peer_addr, ETH_ALEN);
- memcpy(wsm_key->wapi_pairwise.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->wapi_pairwise.mic_key,
- &key->key[16], 16);
- wsm_key->wapi_pairwise.keyid = key->keyidx;
- } else {
- wsm_key->type = WSM_KEY_TYPE_WAPI_GROUP;
- memcpy(wsm_key->wapi_group.keydata,
- &key->key[0], 16);
- memcpy(wsm_key->wapi_group.mic_key,
- &key->key[16], 16);
- wsm_key->wapi_group.keyid = key->keyidx;
- }
- break;
- default:
- pr_warn("Unhandled key type %d\n", key->cipher);
- cw1200_free_key(priv, idx);
- ret = -EOPNOTSUPP;
- goto finally;
- }
- ret = wsm_add_key(priv, wsm_key);
- if (!ret)
- key->hw_key_idx = idx;
- else
- cw1200_free_key(priv, idx);
- } else if (cmd == DISABLE_KEY) {
- struct wsm_remove_key wsm_key = {
- .index = key->hw_key_idx,
- };
-
- if (wsm_key.index > WSM_KEY_MAX_INDEX) {
- ret = -EINVAL;
- goto finally;
- }
-
- cw1200_free_key(priv, wsm_key.index);
- ret = wsm_remove_key(priv, &wsm_key);
- } else {
- pr_warn("Unhandled key command %d\n", cmd);
- }
-
-finally:
- mutex_unlock(&priv->conf_mutex);
- return ret;
-}
-
-void cw1200_wep_key_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, wep_key_work);
- u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
- struct cw1200_queue *queue = &priv->tx_queue[queue_id];
- __le32 wep_default_key_id = __cpu_to_le32(
- priv->wep_default_key_id);
-
- pr_debug("[STA] Setting default WEP key: %d\n",
- priv->wep_default_key_id);
- wsm_flush_tx(priv);
- wsm_write_mib(priv, WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID,
- &wep_default_key_id, sizeof(wep_default_key_id));
- cw1200_queue_requeue(queue, priv->pending_frame_id);
- wsm_unlock_tx(priv);
-}
-
-int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
-{
- int ret = 0;
- __le32 val32;
- struct cw1200_common *priv = hw->priv;
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
- return 0;
-
- if (value != (u32) -1)
- val32 = __cpu_to_le32(value);
- else
- val32 = 0; /* disabled */
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
- /* device is down, can _not_ set threshold */
- ret = -ENODEV;
- goto out;
- }
-
- if (priv->rts_threshold == value)
- goto out;
-
- pr_debug("[STA] Setting RTS threshold: %d\n",
- priv->rts_threshold);
-
- /* mutex_lock(&priv->conf_mutex); */
- ret = wsm_write_mib(priv, WSM_MIB_ID_DOT11_RTS_THRESHOLD,
- &val32, sizeof(val32));
- if (!ret)
- priv->rts_threshold = value;
- /* mutex_unlock(&priv->conf_mutex); */
-
-out:
- return ret;
-}
-
-/* If successful, LOCKS the TX queue! */
-static int __cw1200_flush(struct cw1200_common *priv, bool drop)
-{
- int i, ret;
-
- for (;;) {
- /* TODO: correct flush handling is required when dev_stop.
- * Temporary workaround: 2s
- */
- if (drop) {
- for (i = 0; i < 4; ++i)
- cw1200_queue_clear(&priv->tx_queue[i]);
- } else {
- ret = wait_event_timeout(
- priv->tx_queue_stats.wait_link_id_empty,
- cw1200_queue_stats_is_empty(
- &priv->tx_queue_stats, -1),
- 2 * HZ);
- }
-
- if (!drop && ret <= 0) {
- ret = -ETIMEDOUT;
- break;
- } else {
- ret = 0;
- }
-
- wsm_lock_tx(priv);
- if (!cw1200_queue_stats_is_empty(&priv->tx_queue_stats, -1)) {
- /* Highly unlikely: WSM requeued frames. */
- wsm_unlock_tx(priv);
- continue;
- }
- break;
- }
- return ret;
-}
-
-void cw1200_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- u32 queues, bool drop)
-{
- struct cw1200_common *priv = hw->priv;
-
- switch (priv->mode) {
- case NL80211_IFTYPE_MONITOR:
- drop = true;
- break;
- case NL80211_IFTYPE_AP:
- if (!priv->enable_beacon)
- drop = true;
- break;
- }
-
- if (!__cw1200_flush(priv, drop))
- wsm_unlock_tx(priv);
-
- return;
-}
-
-/* ******************************************************************** */
-/* WSM callbacks */
-
-void cw1200_free_event_queue(struct cw1200_common *priv)
-{
- LIST_HEAD(list);
-
- spin_lock(&priv->event_queue_lock);
- list_splice_init(&priv->event_queue, &list);
- spin_unlock(&priv->event_queue_lock);
-
- __cw1200_free_event_queue(&list);
-}
-
-void cw1200_event_handler(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, event_handler);
- struct cw1200_wsm_event *event;
- LIST_HEAD(list);
-
- spin_lock(&priv->event_queue_lock);
- list_splice_init(&priv->event_queue, &list);
- spin_unlock(&priv->event_queue_lock);
-
- list_for_each_entry(event, &list, link) {
- switch (event->evt.id) {
- case WSM_EVENT_ERROR:
- pr_err("Unhandled WSM Error from LMAC\n");
- break;
- case WSM_EVENT_BSS_LOST:
- pr_debug("[CQM] BSS lost.\n");
- cancel_work_sync(&priv->unjoin_work);
- if (!down_trylock(&priv->scan.lock)) {
- cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
- up(&priv->scan.lock);
- } else {
- /* Scan is in progress. Delay reporting.
- * Scan complete will trigger bss_loss_work
- */
- priv->delayed_link_loss = 1;
- /* Also start a watchdog. */
- queue_delayed_work(priv->workqueue,
- &priv->bss_loss_work, 5*HZ);
- }
- break;
- case WSM_EVENT_BSS_REGAINED:
- pr_debug("[CQM] BSS regained.\n");
- cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
- cancel_work_sync(&priv->unjoin_work);
- break;
- case WSM_EVENT_RADAR_DETECTED:
- wiphy_info(priv->hw->wiphy, "radar pulse detected\n");
- break;
- case WSM_EVENT_RCPI_RSSI:
- {
- /* RSSI: signed Q8.0, RCPI: unsigned Q7.1
- * RSSI = RCPI / 2 - 110
- */
- int rcpi_rssi = (int)(event->evt.data & 0xFF);
- int cqm_evt;
- if (priv->cqm_use_rssi)
- rcpi_rssi = (s8)rcpi_rssi;
- else
- rcpi_rssi = rcpi_rssi / 2 - 110;
-
- cqm_evt = (rcpi_rssi <= priv->cqm_rssi_thold) ?
- NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW :
- NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
- pr_debug("[CQM] RSSI event: %d.\n", rcpi_rssi);
- ieee80211_cqm_rssi_notify(priv->vif, cqm_evt,
- GFP_KERNEL);
- break;
- }
- case WSM_EVENT_BT_INACTIVE:
- pr_warn("Unhandled BT INACTIVE from LMAC\n");
- break;
- case WSM_EVENT_BT_ACTIVE:
- pr_warn("Unhandled BT ACTIVE from LMAC\n");
- break;
- }
- }
- __cw1200_free_event_queue(&list);
-}
-
-void cw1200_bss_loss_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, bss_loss_work.work);
-
- pr_debug("[CQM] Reporting connection loss.\n");
- wsm_lock_tx(priv);
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
-}
-
-void cw1200_bss_params_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, bss_params_work);
- mutex_lock(&priv->conf_mutex);
-
- priv->bss_params.reset_beacon_loss = 1;
- wsm_set_bss_params(priv, &priv->bss_params);
- priv->bss_params.reset_beacon_loss = 0;
-
- mutex_unlock(&priv->conf_mutex);
-}
-
-/* ******************************************************************** */
-/* Internal API */
-
-/* This function is called to Parse the SDD file
- * to extract listen_interval and PTA related information
- * sdd is a TLV: u8 id, u8 len, u8 data[]
- */
-static int cw1200_parse_sdd_file(struct cw1200_common *priv)
-{
- const u8 *p = priv->sdd->data;
- int ret = 0;
-
- while (p + 2 <= priv->sdd->data + priv->sdd->size) {
- if (p + p[1] + 2 > priv->sdd->data + priv->sdd->size) {
- pr_warn("Malformed sdd structure\n");
- return -1;
- }
- switch (p[0]) {
- case SDD_PTA_CFG_ELT_ID: {
- u16 v;
- if (p[1] < 4) {
- pr_warn("SDD_PTA_CFG_ELT_ID malformed\n");
- ret = -1;
- break;
- }
- v = le16_to_cpu(*((__le16 *)(p + 2)));
- if (!v) /* non-zero means this is enabled */
- break;
-
- v = le16_to_cpu(*((__le16 *)(p + 4)));
- priv->conf_listen_interval = (v >> 7) & 0x1F;
- pr_debug("PTA found; Listen Interval %d\n",
- priv->conf_listen_interval);
- break;
- }
- case SDD_REFERENCE_FREQUENCY_ELT_ID: {
- u16 clk = le16_to_cpu(*((__le16 *)(p + 2)));
- if (clk != priv->hw_refclk)
- pr_warn("SDD file doesn't match configured refclk (%d vs %d)\n",
- clk, priv->hw_refclk);
- break;
- }
- default:
- break;
- }
- p += p[1] + 2;
- }
-
- if (!priv->bt_present) {
- pr_debug("PTA element NOT found.\n");
- priv->conf_listen_interval = 0;
- }
- return ret;
-}
-
-int cw1200_setup_mac(struct cw1200_common *priv)
-{
- int ret = 0;
-
- /* NOTE: There is a bug in FW: it reports signal
- * as RSSI if RSSI subscription is enabled.
- * It's not enough to set WSM_RCPI_RSSI_USE_RSSI.
- *
- * NOTE2: RSSI based reports have been switched to RCPI, since
- * FW has a bug and RSSI reported values are not stable,
- * what can leads to signal level oscilations in user-end applications
- */
- struct wsm_rcpi_rssi_threshold threshold = {
- .rssiRcpiMode = WSM_RCPI_RSSI_THRESHOLD_ENABLE |
- WSM_RCPI_RSSI_DONT_USE_UPPER |
- WSM_RCPI_RSSI_DONT_USE_LOWER,
- .rollingAverageCount = 16,
- };
-
- struct wsm_configuration cfg = {
- .dot11StationId = &priv->mac_addr[0],
- };
-
- /* Remember the decission here to make sure, we will handle
- * the RCPI/RSSI value correctly on WSM_EVENT_RCPI_RSS
- */
- if (threshold.rssiRcpiMode & WSM_RCPI_RSSI_USE_RSSI)
- priv->cqm_use_rssi = true;
-
- if (!priv->sdd) {
- ret = request_firmware(&priv->sdd, priv->sdd_path, priv->pdev);
- if (ret) {
- pr_err("Can't load sdd file %s.\n", priv->sdd_path);
- return ret;
- }
- cw1200_parse_sdd_file(priv);
- }
-
- cfg.dpdData = priv->sdd->data;
- cfg.dpdData_size = priv->sdd->size;
- ret = wsm_configuration(priv, &cfg);
- if (ret)
- return ret;
-
- /* Configure RSSI/SCPI reporting as RSSI. */
- wsm_set_rcpi_rssi_threshold(priv, &threshold);
-
- return 0;
-}
-
-static void cw1200_join_complete(struct cw1200_common *priv)
-{
- pr_debug("[STA] Join complete (%d)\n", priv->join_complete_status);
-
- priv->join_pending = false;
- if (priv->join_complete_status) {
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- cw1200_update_listening(priv, priv->listening);
- cw1200_do_unjoin(priv);
- ieee80211_connection_loss(priv->vif);
- } else {
- if (priv->mode == NL80211_IFTYPE_ADHOC)
- priv->join_status = CW1200_JOIN_STATUS_IBSS;
- else
- priv->join_status = CW1200_JOIN_STATUS_PRE_STA;
- }
- wsm_unlock_tx(priv); /* Clearing the lock held before do_join() */
-}
-
-void cw1200_join_complete_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, join_complete_work);
- mutex_lock(&priv->conf_mutex);
- cw1200_join_complete(priv);
- mutex_unlock(&priv->conf_mutex);
-}
-
-void cw1200_join_complete_cb(struct cw1200_common *priv,
- struct wsm_join_complete *arg)
-{
- pr_debug("[STA] cw1200_join_complete_cb called, status=%d.\n",
- arg->status);
-
- if (cancel_delayed_work(&priv->join_timeout)) {
- priv->join_complete_status = arg->status;
- queue_work(priv->workqueue, &priv->join_complete_work);
- }
-}
-
-/* MUST be called with tx_lock held! It will be unlocked for us. */
-static void cw1200_do_join(struct cw1200_common *priv)
-{
- const u8 *bssid;
- struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
- struct cfg80211_bss *bss = NULL;
- struct wsm_protected_mgmt_policy mgmt_policy;
- struct wsm_join join = {
- .mode = conf->ibss_joined ?
- WSM_JOIN_MODE_IBSS : WSM_JOIN_MODE_BSS,
- .preamble_type = WSM_JOIN_PREAMBLE_LONG,
- .probe_for_join = 1,
- .atim_window = 0,
- .basic_rate_set = cw1200_rate_mask_to_wsm(priv,
- conf->basic_rates),
- };
- if (delayed_work_pending(&priv->join_timeout)) {
- pr_warn("[STA] - Join request already pending, skipping..\n");
- wsm_unlock_tx(priv);
- return;
- }
-
- if (priv->join_status)
- cw1200_do_unjoin(priv);
-
- bssid = priv->vif->bss_conf.bssid;
-
- bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel, bssid, NULL, 0,
- IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
-
- if (!bss && !conf->ibss_joined) {
- wsm_unlock_tx(priv);
- return;
- }
-
- mutex_lock(&priv->conf_mutex);
-
- /* Under the conf lock: check scan status and
- * bail out if it is in progress.
- */
- if (atomic_read(&priv->scan.in_progress)) {
- wsm_unlock_tx(priv);
- goto done_put;
- }
-
- priv->join_pending = true;
-
- /* Sanity check basic rates */
- if (!join.basic_rate_set)
- join.basic_rate_set = 7;
-
- /* Sanity check beacon interval */
- if (!priv->beacon_int)
- priv->beacon_int = 1;
-
- join.beacon_interval = priv->beacon_int;
-
- /* BT Coex related changes */
- if (priv->bt_present) {
- if (((priv->conf_listen_interval * 100) %
- priv->beacon_int) == 0)
- priv->listen_interval =
- ((priv->conf_listen_interval * 100) /
- priv->beacon_int);
- else
- priv->listen_interval =
- ((priv->conf_listen_interval * 100) /
- priv->beacon_int + 1);
- }
-
- if (priv->hw->conf.ps_dtim_period)
- priv->join_dtim_period = priv->hw->conf.ps_dtim_period;
- join.dtim_period = priv->join_dtim_period;
-
- join.channel_number = priv->channel->hw_value;
- join.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
- WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
-
- memcpy(join.bssid, bssid, sizeof(join.bssid));
-
- pr_debug("[STA] Join BSSID: %pM DTIM: %d, interval: %d\n",
- join.bssid,
- join.dtim_period, priv->beacon_int);
-
- if (!conf->ibss_joined) {
- const u8 *ssidie;
- rcu_read_lock();
- ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
- if (ssidie) {
- join.ssid_len = ssidie[1];
- memcpy(join.ssid, &ssidie[2], join.ssid_len);
- }
- rcu_read_unlock();
- }
-
- if (priv->vif->p2p) {
- join.flags |= WSM_JOIN_FLAGS_P2P_GO;
- join.basic_rate_set =
- cw1200_rate_mask_to_wsm(priv, 0xFF0);
- }
-
- /* Enable asynchronous join calls */
- if (!conf->ibss_joined) {
- join.flags |= WSM_JOIN_FLAGS_FORCE;
- join.flags |= WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND;
- }
-
- wsm_flush_tx(priv);
-
- /* Stay Awake for Join and Auth Timeouts and a bit more */
- cw1200_pm_stay_awake(&priv->pm_state,
- CW1200_JOIN_TIMEOUT + CW1200_AUTH_TIMEOUT);
-
- cw1200_update_listening(priv, false);
-
- /* Turn on Block ACKs */
- wsm_set_block_ack_policy(priv, priv->ba_tx_tid_mask,
- priv->ba_rx_tid_mask);
-
- /* Set up timeout */
- if (join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND) {
- priv->join_status = CW1200_JOIN_STATUS_JOINING;
- queue_delayed_work(priv->workqueue,
- &priv->join_timeout,
- CW1200_JOIN_TIMEOUT);
- }
-
- /* 802.11w protected mgmt frames */
- mgmt_policy.protectedMgmtEnable = 0;
- mgmt_policy.unprotectedMgmtFramesAllowed = 1;
- mgmt_policy.encryptionForAuthFrame = 1;
- wsm_set_protected_mgmt_policy(priv, &mgmt_policy);
-
- /* Perform actual join */
- if (wsm_join(priv, &join)) {
- pr_err("[STA] cw1200_join_work: wsm_join failed!\n");
- cancel_delayed_work_sync(&priv->join_timeout);
- cw1200_update_listening(priv, priv->listening);
- /* Tx lock still held, unjoin will clear it. */
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- } else {
- if (!(join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND))
- cw1200_join_complete(priv); /* Will clear tx_lock */
-
- /* Upload keys */
- cw1200_upload_keys(priv);
-
- /* Due to beacon filtering it is possible that the
- * AP's beacon is not known for the mac80211 stack.
- * Disable filtering temporary to make sure the stack
- * receives at least one
- */
- priv->disable_beacon_filter = true;
- }
- cw1200_update_filtering(priv);
-
-done_put:
- mutex_unlock(&priv->conf_mutex);
- if (bss)
- cfg80211_put_bss(priv->hw->wiphy, bss);
-}
-
-void cw1200_join_timeout(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, join_timeout.work);
- pr_debug("[WSM] Join timed out.\n");
- wsm_lock_tx(priv);
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
-}
-
-static void cw1200_do_unjoin(struct cw1200_common *priv)
-{
- struct wsm_reset reset = {
- .reset_statistics = true,
- };
-
- cancel_delayed_work_sync(&priv->join_timeout);
-
- mutex_lock(&priv->conf_mutex);
- priv->join_pending = false;
-
- if (atomic_read(&priv->scan.in_progress)) {
- if (priv->delayed_unjoin)
- wiphy_dbg(priv->hw->wiphy, "Delayed unjoin is already scheduled.\n");
- else
- priv->delayed_unjoin = true;
- goto done;
- }
-
- priv->delayed_link_loss = false;
-
- if (!priv->join_status)
- goto done;
-
- if (priv->join_status == CW1200_JOIN_STATUS_AP)
- goto done;
-
- cancel_work_sync(&priv->update_filtering_work);
- cancel_work_sync(&priv->set_beacon_wakeup_period_work);
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
-
- /* Unjoin is a reset. */
- wsm_flush_tx(priv);
- wsm_keep_alive_period(priv, 0);
- wsm_reset(priv, &reset);
- wsm_set_output_power(priv, priv->output_power * 10);
- priv->join_dtim_period = 0;
- cw1200_setup_mac(priv);
- cw1200_free_event_queue(priv);
- cancel_work_sync(&priv->event_handler);
- cw1200_update_listening(priv, priv->listening);
- cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
-
- /* Disable Block ACKs */
- wsm_set_block_ack_policy(priv, 0, 0);
-
- priv->disable_beacon_filter = false;
- cw1200_update_filtering(priv);
- memset(&priv->association_mode, 0,
- sizeof(priv->association_mode));
- memset(&priv->bss_params, 0, sizeof(priv->bss_params));
- priv->setbssparams_done = false;
- memset(&priv->firmware_ps_mode, 0,
- sizeof(priv->firmware_ps_mode));
-
- pr_debug("[STA] Unjoin completed.\n");
-
-done:
- mutex_unlock(&priv->conf_mutex);
-}
-
-void cw1200_unjoin_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, unjoin_work);
-
- cw1200_do_unjoin(priv);
-
- /* Tell the stack we're dead */
- ieee80211_connection_loss(priv->vif);
-
- wsm_unlock_tx(priv);
-}
-
-int cw1200_enable_listening(struct cw1200_common *priv)
-{
- struct wsm_start start = {
- .mode = WSM_START_MODE_P2P_DEV,
- .band = WSM_PHY_BAND_2_4G,
- .beacon_interval = 100,
- .dtim_period = 1,
- .probe_delay = 0,
- .basic_rate_set = 0x0F,
- };
-
- if (priv->channel) {
- start.band = priv->channel->band == IEEE80211_BAND_5GHZ ?
- WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
- start.channel_number = priv->channel->hw_value;
- } else {
- start.band = WSM_PHY_BAND_2_4G;
- start.channel_number = 1;
- }
-
- return wsm_start(priv, &start);
-}
-
-int cw1200_disable_listening(struct cw1200_common *priv)
-{
- int ret;
- struct wsm_reset reset = {
- .reset_statistics = true,
- };
- ret = wsm_reset(priv, &reset);
- return ret;
-}
-
-void cw1200_update_listening(struct cw1200_common *priv, bool enabled)
-{
- if (enabled) {
- if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE) {
- if (!cw1200_enable_listening(priv))
- priv->join_status = CW1200_JOIN_STATUS_MONITOR;
- wsm_set_probe_responder(priv, true);
- }
- } else {
- if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
- if (!cw1200_disable_listening(priv))
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- wsm_set_probe_responder(priv, false);
- }
- }
-}
-
-int cw1200_set_uapsd_param(struct cw1200_common *priv,
- const struct wsm_edca_params *arg)
-{
- int ret;
- u16 uapsd_flags = 0;
-
- /* Here's the mapping AC [queue, bit]
- * VO [0,3], VI [1, 2], BE [2, 1], BK [3, 0]
- */
-
- if (arg->uapsd_enable[0])
- uapsd_flags |= 1 << 3;
-
- if (arg->uapsd_enable[1])
- uapsd_flags |= 1 << 2;
-
- if (arg->uapsd_enable[2])
- uapsd_flags |= 1 << 1;
-
- if (arg->uapsd_enable[3])
- uapsd_flags |= 1;
-
- /* Currently pseudo U-APSD operation is not supported, so setting
- * MinAutoTriggerInterval, MaxAutoTriggerInterval and
- * AutoTriggerStep to 0
- */
-
- priv->uapsd_info.uapsd_flags = cpu_to_le16(uapsd_flags);
- priv->uapsd_info.min_auto_trigger_interval = 0;
- priv->uapsd_info.max_auto_trigger_interval = 0;
- priv->uapsd_info.auto_trigger_step = 0;
-
- ret = wsm_set_uapsd_info(priv, &priv->uapsd_info);
- return ret;
-}
-
-/* ******************************************************************** */
-/* AP API */
-
-int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta)
-{
- struct cw1200_common *priv = hw->priv;
- struct cw1200_sta_priv *sta_priv =
- (struct cw1200_sta_priv *)&sta->drv_priv;
- struct cw1200_link_entry *entry;
- struct sk_buff *skb;
-
- if (priv->mode != NL80211_IFTYPE_AP)
- return 0;
-
- sta_priv->link_id = cw1200_find_link_id(priv, sta->addr);
- if (WARN_ON(!sta_priv->link_id)) {
- wiphy_info(priv->hw->wiphy,
- "[AP] No more link IDs available.\n");
- return -ENOENT;
- }
-
- entry = &priv->link_id_db[sta_priv->link_id - 1];
- spin_lock_bh(&priv->ps_state_lock);
- if ((sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) ==
- IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
- priv->sta_asleep_mask |= BIT(sta_priv->link_id);
- entry->status = CW1200_LINK_HARD;
- while ((skb = skb_dequeue(&entry->rx_queue)))
- ieee80211_rx_irqsafe(priv->hw, skb);
- spin_unlock_bh(&priv->ps_state_lock);
- return 0;
-}
-
-int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta)
-{
- struct cw1200_common *priv = hw->priv;
- struct cw1200_sta_priv *sta_priv =
- (struct cw1200_sta_priv *)&sta->drv_priv;
- struct cw1200_link_entry *entry;
-
- if (priv->mode != NL80211_IFTYPE_AP || !sta_priv->link_id)
- return 0;
-
- entry = &priv->link_id_db[sta_priv->link_id - 1];
- spin_lock_bh(&priv->ps_state_lock);
- entry->status = CW1200_LINK_RESERVE;
- entry->timestamp = jiffies;
- wsm_lock_tx_async(priv);
- if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
- wsm_unlock_tx(priv);
- spin_unlock_bh(&priv->ps_state_lock);
- flush_workqueue(priv->workqueue);
- return 0;
-}
-
-static void __cw1200_sta_notify(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum sta_notify_cmd notify_cmd,
- int link_id)
-{
- struct cw1200_common *priv = dev->priv;
- u32 bit, prev;
-
- /* Zero link id means "for all link IDs" */
- if (link_id)
- bit = BIT(link_id);
- else if (WARN_ON_ONCE(notify_cmd != STA_NOTIFY_AWAKE))
- bit = 0;
- else
- bit = priv->link_id_map;
- prev = priv->sta_asleep_mask & bit;
-
- switch (notify_cmd) {
- case STA_NOTIFY_SLEEP:
- if (!prev) {
- if (priv->buffered_multicasts &&
- !priv->sta_asleep_mask)
- queue_work(priv->workqueue,
- &priv->multicast_start_work);
- priv->sta_asleep_mask |= bit;
- }
- break;
- case STA_NOTIFY_AWAKE:
- if (prev) {
- priv->sta_asleep_mask &= ~bit;
- priv->pspoll_mask &= ~bit;
- if (priv->tx_multicast && link_id &&
- !priv->sta_asleep_mask)
- queue_work(priv->workqueue,
- &priv->multicast_stop_work);
- cw1200_bh_wakeup(priv);
- }
- break;
- }
-}
-
-void cw1200_sta_notify(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum sta_notify_cmd notify_cmd,
- struct ieee80211_sta *sta)
-{
- struct cw1200_common *priv = dev->priv;
- struct cw1200_sta_priv *sta_priv =
- (struct cw1200_sta_priv *)&sta->drv_priv;
-
- spin_lock_bh(&priv->ps_state_lock);
- __cw1200_sta_notify(dev, vif, notify_cmd, sta_priv->link_id);
- spin_unlock_bh(&priv->ps_state_lock);
-}
-
-static void cw1200_ps_notify(struct cw1200_common *priv,
- int link_id, bool ps)
-{
- if (link_id > CW1200_MAX_STA_IN_AP_MODE)
- return;
-
- pr_debug("%s for LinkId: %d. STAs asleep: %.8X\n",
- ps ? "Stop" : "Start",
- link_id, priv->sta_asleep_mask);
-
- __cw1200_sta_notify(priv->hw, priv->vif,
- ps ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, link_id);
-}
-
-static int cw1200_set_tim_impl(struct cw1200_common *priv, bool aid0_bit_set)
-{
- struct sk_buff *skb;
- struct wsm_update_ie update_ie = {
- .what = WSM_UPDATE_IE_BEACON,
- .count = 1,
- };
- u16 tim_offset, tim_length;
-
- pr_debug("[AP] mcast: %s.\n", aid0_bit_set ? "ena" : "dis");
-
- skb = ieee80211_beacon_get_tim(priv->hw, priv->vif,
- &tim_offset, &tim_length);
- if (!skb) {
- if (!__cw1200_flush(priv, true))
- wsm_unlock_tx(priv);
- return -ENOENT;
- }
-
- if (tim_offset && tim_length >= 6) {
- /* Ignore DTIM count from mac80211:
- * firmware handles DTIM internally.
- */
- skb->data[tim_offset + 2] = 0;
-
- /* Set/reset aid0 bit */
- if (aid0_bit_set)
- skb->data[tim_offset + 4] |= 1;
- else
- skb->data[tim_offset + 4] &= ~1;
- }
-
- update_ie.ies = &skb->data[tim_offset];
- update_ie.length = tim_length;
- wsm_update_ie(priv, &update_ie);
-
- dev_kfree_skb(skb);
-
- return 0;
-}
-
-void cw1200_set_tim_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, set_tim_work);
- (void)cw1200_set_tim_impl(priv, priv->aid0_bit_set);
-}
-
-int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
- bool set)
-{
- struct cw1200_common *priv = dev->priv;
- queue_work(priv->workqueue, &priv->set_tim_work);
- return 0;
-}
-
-void cw1200_set_cts_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, set_cts_work);
-
- u8 erp_ie[3] = {WLAN_EID_ERP_INFO, 0x1, 0};
- struct wsm_update_ie update_ie = {
- .what = WSM_UPDATE_IE_BEACON,
- .count = 1,
- .ies = erp_ie,
- .length = 3,
- };
- u32 erp_info;
- __le32 use_cts_prot;
- mutex_lock(&priv->conf_mutex);
- erp_info = priv->erp_info;
- mutex_unlock(&priv->conf_mutex);
- use_cts_prot =
- erp_info & WLAN_ERP_USE_PROTECTION ?
- __cpu_to_le32(1) : 0;
-
- erp_ie[ERP_INFO_BYTE_OFFSET] = erp_info;
-
- pr_debug("[STA] ERP information 0x%x\n", erp_info);
-
- wsm_write_mib(priv, WSM_MIB_ID_NON_ERP_PROTECTION,
- &use_cts_prot, sizeof(use_cts_prot));
- wsm_update_ie(priv, &update_ie);
-
- return;
-}
-
-static int cw1200_set_btcoexinfo(struct cw1200_common *priv)
-{
- struct wsm_override_internal_txrate arg;
- int ret = 0;
-
- if (priv->mode == NL80211_IFTYPE_STATION) {
- /* Plumb PSPOLL and NULL template */
- cw1200_upload_pspoll(priv);
- cw1200_upload_null(priv);
- cw1200_upload_qosnull(priv);
- } else {
- return 0;
- }
-
- memset(&arg, 0, sizeof(struct wsm_override_internal_txrate));
-
- if (!priv->vif->p2p) {
- /* STATION mode */
- if (priv->bss_params.operational_rate_set & ~0xF) {
- pr_debug("[STA] STA has ERP rates\n");
- /* G or BG mode */
- arg.internalTxRate = (__ffs(
- priv->bss_params.operational_rate_set & ~0xF));
- } else {
- pr_debug("[STA] STA has non ERP rates\n");
- /* B only mode */
- arg.internalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set)));
- }
- arg.nonErpInternalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set)));
- } else {
- /* P2P mode */
- arg.internalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
- arg.nonErpInternalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
- }
-
- pr_debug("[STA] BTCOEX_INFO MODE %d, internalTxRate : %x, nonErpInternalTxRate: %x\n",
- priv->mode,
- arg.internalTxRate,
- arg.nonErpInternalTxRate);
-
- ret = wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE,
- &arg, sizeof(arg));
-
- return ret;
-}
-
-void cw1200_bss_info_changed(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *info,
- u32 changed)
-{
- struct cw1200_common *priv = dev->priv;
- bool do_join = false;
-
- mutex_lock(&priv->conf_mutex);
-
- pr_debug("BSS CHANGED: %08x\n", changed);
-
- /* TODO: BSS_CHANGED_QOS */
- /* TODO: BSS_CHANGED_TXPOWER */
-
- if (changed & BSS_CHANGED_ARP_FILTER) {
- struct wsm_mib_arp_ipv4_filter filter = {0};
- int i;
-
- pr_debug("[STA] BSS_CHANGED_ARP_FILTER cnt: %d\n",
- info->arp_addr_cnt);
-
- /* Currently only one IP address is supported by firmware.
- * In case of more IPs arp filtering will be disabled.
- */
- if (info->arp_addr_cnt > 0 &&
- info->arp_addr_cnt <= WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES) {
- for (i = 0; i < info->arp_addr_cnt; i++) {
- filter.ipv4addrs[i] = info->arp_addr_list[i];
- pr_debug("[STA] addr[%d]: 0x%X\n",
- i, filter.ipv4addrs[i]);
- }
- filter.enable = __cpu_to_le32(1);
- }
-
- pr_debug("[STA] arp ip filter enable: %d\n",
- __le32_to_cpu(filter.enable));
-
- wsm_set_arp_ipv4_filter(priv, &filter);
- }
-
- if (changed &
- (BSS_CHANGED_BEACON |
- BSS_CHANGED_AP_PROBE_RESP |
- BSS_CHANGED_BSSID |
- BSS_CHANGED_SSID |
- BSS_CHANGED_IBSS)) {
- pr_debug("BSS_CHANGED_BEACON\n");
- priv->beacon_int = info->beacon_int;
- cw1200_update_beaconing(priv);
- cw1200_upload_beacon(priv);
- }
-
- if (changed & BSS_CHANGED_BEACON_ENABLED) {
- pr_debug("BSS_CHANGED_BEACON_ENABLED (%d)\n", info->enable_beacon);
-
- if (priv->enable_beacon != info->enable_beacon) {
- cw1200_enable_beaconing(priv, info->enable_beacon);
- priv->enable_beacon = info->enable_beacon;
- }
- }
-
- if (changed & BSS_CHANGED_BEACON_INT) {
- pr_debug("CHANGED_BEACON_INT\n");
- if (info->ibss_joined)
- do_join = true;
- else if (priv->join_status == CW1200_JOIN_STATUS_AP)
- cw1200_update_beaconing(priv);
- }
-
- /* assoc/disassoc, or maybe AID changed */
- if (changed & BSS_CHANGED_ASSOC) {
- wsm_lock_tx(priv);
- priv->wep_default_key_id = -1;
- wsm_unlock_tx(priv);
- }
-
- if (changed & BSS_CHANGED_BSSID) {
- pr_debug("BSS_CHANGED_BSSID\n");
- do_join = true;
- }
-
- if (changed &
- (BSS_CHANGED_ASSOC |
- BSS_CHANGED_BSSID |
- BSS_CHANGED_IBSS |
- BSS_CHANGED_BASIC_RATES |
- BSS_CHANGED_HT)) {
- pr_debug("BSS_CHANGED_ASSOC\n");
- if (info->assoc) {
- if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA) {
- ieee80211_connection_loss(vif);
- mutex_unlock(&priv->conf_mutex);
- return;
- } else if (priv->join_status == CW1200_JOIN_STATUS_PRE_STA) {
- priv->join_status = CW1200_JOIN_STATUS_STA;
- }
- } else {
- do_join = true;
- }
-
- if (info->assoc || info->ibss_joined) {
- struct ieee80211_sta *sta = NULL;
- __le32 htprot = 0;
-
- if (info->dtim_period)
- priv->join_dtim_period = info->dtim_period;
- priv->beacon_int = info->beacon_int;
-
- rcu_read_lock();
-
- if (info->bssid && !info->ibss_joined)
- sta = ieee80211_find_sta(vif, info->bssid);
- if (sta) {
- priv->ht_info.ht_cap = sta->ht_cap;
- priv->bss_params.operational_rate_set =
- cw1200_rate_mask_to_wsm(priv,
- sta->supp_rates[priv->channel->band]);
- priv->ht_info.channel_type = cfg80211_get_chandef_type(&dev->conf.chandef);
- priv->ht_info.operation_mode = info->ht_operation_mode;
- } else {
- memset(&priv->ht_info, 0,
- sizeof(priv->ht_info));
- priv->bss_params.operational_rate_set = -1;
- }
- rcu_read_unlock();
-
- /* Non Greenfield stations present */
- if (priv->ht_info.operation_mode &
- IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT)
- htprot |= cpu_to_le32(WSM_NON_GREENFIELD_STA_PRESENT);
-
- /* Set HT protection method */
- htprot |= cpu_to_le32((priv->ht_info.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION) << 2);
-
- /* TODO:
- * STBC_param.dual_cts
- * STBC_param.LSIG_TXOP_FILL
- */
-
- wsm_write_mib(priv, WSM_MIB_ID_SET_HT_PROTECTION,
- &htprot, sizeof(htprot));
-
- priv->association_mode.greenfield =
- cw1200_ht_greenfield(&priv->ht_info);
- priv->association_mode.flags =
- WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES |
- WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE |
- WSM_ASSOCIATION_MODE_USE_HT_MODE |
- WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET |
- WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING;
- priv->association_mode.preamble =
- info->use_short_preamble ?
- WSM_JOIN_PREAMBLE_SHORT :
- WSM_JOIN_PREAMBLE_LONG;
- priv->association_mode.basic_rate_set = __cpu_to_le32(
- cw1200_rate_mask_to_wsm(priv,
- info->basic_rates));
- priv->association_mode.mpdu_start_spacing =
- cw1200_ht_ampdu_density(&priv->ht_info);
-
- cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
- cancel_work_sync(&priv->unjoin_work);
-
- priv->bss_params.beacon_lost_count = priv->cqm_beacon_loss_count;
- priv->bss_params.aid = info->aid;
-
- if (priv->join_dtim_period < 1)
- priv->join_dtim_period = 1;
-
- pr_debug("[STA] DTIM %d, interval: %d\n",
- priv->join_dtim_period, priv->beacon_int);
- pr_debug("[STA] Preamble: %d, Greenfield: %d, Aid: %d, Rates: 0x%.8X, Basic: 0x%.8X\n",
- priv->association_mode.preamble,
- priv->association_mode.greenfield,
- priv->bss_params.aid,
- priv->bss_params.operational_rate_set,
- priv->association_mode.basic_rate_set);
- wsm_set_association_mode(priv, &priv->association_mode);
-
- if (!info->ibss_joined) {
- wsm_keep_alive_period(priv, 30 /* sec */);
- wsm_set_bss_params(priv, &priv->bss_params);
- priv->setbssparams_done = true;
- cw1200_set_beacon_wakeup_period_work(&priv->set_beacon_wakeup_period_work);
- cw1200_set_pm(priv, &priv->powersave_mode);
- }
- if (priv->vif->p2p) {
- pr_debug("[STA] Setting p2p powersave configuration.\n");
- wsm_set_p2p_ps_modeinfo(priv,
- &priv->p2p_ps_modeinfo);
- }
- if (priv->bt_present)
- cw1200_set_btcoexinfo(priv);
- } else {
- memset(&priv->association_mode, 0,
- sizeof(priv->association_mode));
- memset(&priv->bss_params, 0, sizeof(priv->bss_params));
- }
- }
-
- /* ERP Protection */
- if (changed & (BSS_CHANGED_ASSOC |
- BSS_CHANGED_ERP_CTS_PROT |
- BSS_CHANGED_ERP_PREAMBLE)) {
- u32 prev_erp_info = priv->erp_info;
- if (info->use_cts_prot)
- priv->erp_info |= WLAN_ERP_USE_PROTECTION;
- else if (!(prev_erp_info & WLAN_ERP_NON_ERP_PRESENT))
- priv->erp_info &= ~WLAN_ERP_USE_PROTECTION;
-
- if (info->use_short_preamble)
- priv->erp_info |= WLAN_ERP_BARKER_PREAMBLE;
- else
- priv->erp_info &= ~WLAN_ERP_BARKER_PREAMBLE;
-
- pr_debug("[STA] ERP Protection: %x\n", priv->erp_info);
-
- if (prev_erp_info != priv->erp_info)
- queue_work(priv->workqueue, &priv->set_cts_work);
- }
-
- /* ERP Slottime */
- if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_SLOT)) {
- __le32 slot_time = info->use_short_slot ?
- __cpu_to_le32(9) : __cpu_to_le32(20);
- pr_debug("[STA] Slot time: %d us.\n",
- __le32_to_cpu(slot_time));
- wsm_write_mib(priv, WSM_MIB_ID_DOT11_SLOT_TIME,
- &slot_time, sizeof(slot_time));
- }
-
- if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_CQM)) {
- struct wsm_rcpi_rssi_threshold threshold = {
- .rollingAverageCount = 8,
- };
- pr_debug("[CQM] RSSI threshold subscribe: %d +- %d\n",
- info->cqm_rssi_thold, info->cqm_rssi_hyst);
- priv->cqm_rssi_thold = info->cqm_rssi_thold;
- priv->cqm_rssi_hyst = info->cqm_rssi_hyst;
-
- if (info->cqm_rssi_thold || info->cqm_rssi_hyst) {
- /* RSSI subscription enabled */
- /* TODO: It's not a correct way of setting threshold.
- * Upper and lower must be set equal here and adjusted
- * in callback. However current implementation is much
- * more relaible and stable.
- */
-
- /* RSSI: signed Q8.0, RCPI: unsigned Q7.1
- * RSSI = RCPI / 2 - 110
- */
- if (priv->cqm_use_rssi) {
- threshold.upperThreshold =
- info->cqm_rssi_thold + info->cqm_rssi_hyst;
- threshold.lowerThreshold =
- info->cqm_rssi_thold;
- threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI;
- } else {
- threshold.upperThreshold = (info->cqm_rssi_thold + info->cqm_rssi_hyst + 110) * 2;
- threshold.lowerThreshold = (info->cqm_rssi_thold + 110) * 2;
- }
- threshold.rssiRcpiMode |= WSM_RCPI_RSSI_THRESHOLD_ENABLE;
- } else {
- /* There is a bug in FW, see sta.c. We have to enable
- * dummy subscription to get correct RSSI values.
- */
- threshold.rssiRcpiMode |=
- WSM_RCPI_RSSI_THRESHOLD_ENABLE |
- WSM_RCPI_RSSI_DONT_USE_UPPER |
- WSM_RCPI_RSSI_DONT_USE_LOWER;
- if (priv->cqm_use_rssi)
- threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI;
- }
- wsm_set_rcpi_rssi_threshold(priv, &threshold);
- }
- mutex_unlock(&priv->conf_mutex);
-
- if (do_join) {
- wsm_lock_tx(priv);
- cw1200_do_join(priv); /* Will unlock it for us */
- }
-}
-
-void cw1200_multicast_start_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, multicast_start_work);
- long tmo = priv->join_dtim_period *
- (priv->beacon_int + 20) * HZ / 1024;
-
- cancel_work_sync(&priv->multicast_stop_work);
-
- if (!priv->aid0_bit_set) {
- wsm_lock_tx(priv);
- cw1200_set_tim_impl(priv, true);
- priv->aid0_bit_set = true;
- mod_timer(&priv->mcast_timeout, jiffies + tmo);
- wsm_unlock_tx(priv);
- }
-}
-
-void cw1200_multicast_stop_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, multicast_stop_work);
-
- if (priv->aid0_bit_set) {
- del_timer_sync(&priv->mcast_timeout);
- wsm_lock_tx(priv);
- priv->aid0_bit_set = false;
- cw1200_set_tim_impl(priv, false);
- wsm_unlock_tx(priv);
- }
-}
-
-void cw1200_mcast_timeout(unsigned long arg)
-{
- struct cw1200_common *priv =
- (struct cw1200_common *)arg;
-
- wiphy_warn(priv->hw->wiphy,
- "Multicast delivery timeout.\n");
- spin_lock_bh(&priv->ps_state_lock);
- priv->tx_multicast = priv->aid0_bit_set &&
- priv->buffered_multicasts;
- if (priv->tx_multicast)
- cw1200_bh_wakeup(priv);
- spin_unlock_bh(&priv->ps_state_lock);
-}
-
-int cw1200_ampdu_action(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum ieee80211_ampdu_mlme_action action,
- struct ieee80211_sta *sta, u16 tid, u16 *ssn,
- u8 buf_size, bool amsdu)
-{
- /* Aggregation is implemented fully in firmware,
- * including block ack negotiation. Do not allow
- * mac80211 stack to do anything: it interferes with
- * the firmware.
- */
-
- /* Note that we still need this function stubbed. */
- return -ENOTSUPP;
-}
-
-/* ******************************************************************** */
-/* WSM callback */
-void cw1200_suspend_resume(struct cw1200_common *priv,
- struct wsm_suspend_resume *arg)
-{
- pr_debug("[AP] %s: %s\n",
- arg->stop ? "stop" : "start",
- arg->multicast ? "broadcast" : "unicast");
-
- if (arg->multicast) {
- bool cancel_tmo = false;
- spin_lock_bh(&priv->ps_state_lock);
- if (arg->stop) {
- priv->tx_multicast = false;
- } else {
- /* Firmware sends this indication every DTIM if there
- * is a STA in powersave connected. There is no reason
- * to suspend, following wakeup will consume much more
- * power than it could be saved.
- */
- cw1200_pm_stay_awake(&priv->pm_state,
- priv->join_dtim_period *
- (priv->beacon_int + 20) * HZ / 1024);
- priv->tx_multicast = (priv->aid0_bit_set &&
- priv->buffered_multicasts);
- if (priv->tx_multicast) {
- cancel_tmo = true;
- cw1200_bh_wakeup(priv);
- }
- }
- spin_unlock_bh(&priv->ps_state_lock);
- if (cancel_tmo)
- del_timer_sync(&priv->mcast_timeout);
- } else {
- spin_lock_bh(&priv->ps_state_lock);
- cw1200_ps_notify(priv, arg->link_id, arg->stop);
- spin_unlock_bh(&priv->ps_state_lock);
- if (!arg->stop)
- cw1200_bh_wakeup(priv);
- }
- return;
-}
-
-/* ******************************************************************** */
-/* AP privates */
-
-static int cw1200_upload_beacon(struct cw1200_common *priv)
-{
- int ret = 0;
- struct ieee80211_mgmt *mgmt;
- struct wsm_template_frame frame = {
- .frame_type = WSM_FRAME_TYPE_BEACON,
- };
-
- u16 tim_offset;
- u16 tim_len;
-
- if (priv->mode == NL80211_IFTYPE_STATION ||
- priv->mode == NL80211_IFTYPE_MONITOR ||
- priv->mode == NL80211_IFTYPE_UNSPECIFIED)
- goto done;
-
- if (priv->vif->p2p)
- frame.rate = WSM_TRANSMIT_RATE_6;
-
- frame.skb = ieee80211_beacon_get_tim(priv->hw, priv->vif,
- &tim_offset, &tim_len);
- if (!frame.skb)
- return -ENOMEM;
-
- ret = wsm_set_template_frame(priv, &frame);
-
- if (ret)
- goto done;
-
- /* TODO: Distill probe resp; remove TIM
- * and any other beacon-specific IEs
- */
- mgmt = (void *)frame.skb->data;
- mgmt->frame_control =
- __cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
-
- frame.frame_type = WSM_FRAME_TYPE_PROBE_RESPONSE;
- if (priv->vif->p2p) {
- ret = wsm_set_probe_responder(priv, true);
- } else {
- ret = wsm_set_template_frame(priv, &frame);
- wsm_set_probe_responder(priv, false);
- }
-
-done:
- dev_kfree_skb(frame.skb);
-
- return ret;
-}
-
-static int cw1200_upload_pspoll(struct cw1200_common *priv)
-{
- int ret = 0;
- struct wsm_template_frame frame = {
- .frame_type = WSM_FRAME_TYPE_PS_POLL,
- .rate = 0xFF,
- };
-
-
- frame.skb = ieee80211_pspoll_get(priv->hw, priv->vif);
- if (!frame.skb)
- return -ENOMEM;
-
- ret = wsm_set_template_frame(priv, &frame);
-
- dev_kfree_skb(frame.skb);
-
- return ret;
-}
-
-static int cw1200_upload_null(struct cw1200_common *priv)
-{
- int ret = 0;
- struct wsm_template_frame frame = {
- .frame_type = WSM_FRAME_TYPE_NULL,
- .rate = 0xFF,
- };
-
- frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
- if (!frame.skb)
- return -ENOMEM;
-
- ret = wsm_set_template_frame(priv, &frame);
-
- dev_kfree_skb(frame.skb);
-
- return ret;
-}
-
-static int cw1200_upload_qosnull(struct cw1200_common *priv)
-{
- /* TODO: This needs to be implemented
-
- struct wsm_template_frame frame = {
- .frame_type = WSM_FRAME_TYPE_QOS_NULL,
- .rate = 0xFF,
- };
-
- frame.skb = ieee80211_qosnullfunc_get(priv->hw, priv->vif);
- if (!frame.skb)
- return -ENOMEM;
-
- ret = wsm_set_template_frame(priv, &frame);
-
- dev_kfree_skb(frame.skb);
-
- */
- return 0;
-}
-
-static int cw1200_enable_beaconing(struct cw1200_common *priv,
- bool enable)
-{
- struct wsm_beacon_transmit transmit = {
- .enable_beaconing = enable,
- };
-
- return wsm_beacon_transmit(priv, &transmit);
-}
-
-static int cw1200_start_ap(struct cw1200_common *priv)
-{
- int ret;
- struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
- struct wsm_start start = {
- .mode = priv->vif->p2p ?
- WSM_START_MODE_P2P_GO : WSM_START_MODE_AP,
- .band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
- WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G,
- .channel_number = priv->channel->hw_value,
- .beacon_interval = conf->beacon_int,
- .dtim_period = conf->dtim_period,
- .preamble = conf->use_short_preamble ?
- WSM_JOIN_PREAMBLE_SHORT :
- WSM_JOIN_PREAMBLE_LONG,
- .probe_delay = 100,
- .basic_rate_set = cw1200_rate_mask_to_wsm(priv,
- conf->basic_rates),
- };
- struct wsm_operational_mode mode = {
- .power_mode = cw1200_power_mode,
- .disable_more_flag_usage = true,
- };
-
- memset(start.ssid, 0, sizeof(start.ssid));
- if (!conf->hidden_ssid) {
- start.ssid_len = conf->ssid_len;
- memcpy(start.ssid, conf->ssid, start.ssid_len);
- }
-
- priv->beacon_int = conf->beacon_int;
- priv->join_dtim_period = conf->dtim_period;
-
- memset(&priv->link_id_db, 0, sizeof(priv->link_id_db));
-
- pr_debug("[AP] ch: %d(%d), bcn: %d(%d), brt: 0x%.8X, ssid: %.*s.\n",
- start.channel_number, start.band,
- start.beacon_interval, start.dtim_period,
- start.basic_rate_set,
- start.ssid_len, start.ssid);
- ret = wsm_start(priv, &start);
- if (!ret)
- ret = cw1200_upload_keys(priv);
- if (!ret && priv->vif->p2p) {
- pr_debug("[AP] Setting p2p powersave configuration.\n");
- wsm_set_p2p_ps_modeinfo(priv, &priv->p2p_ps_modeinfo);
- }
- if (!ret) {
- wsm_set_block_ack_policy(priv, 0, 0);
- priv->join_status = CW1200_JOIN_STATUS_AP;
- cw1200_update_filtering(priv);
- }
- wsm_set_operational_mode(priv, &mode);
- return ret;
-}
-
-static int cw1200_update_beaconing(struct cw1200_common *priv)
-{
- struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
- struct wsm_reset reset = {
- .link_id = 0,
- .reset_statistics = true,
- };
-
- if (priv->mode == NL80211_IFTYPE_AP) {
- /* TODO: check if changed channel, band */
- if (priv->join_status != CW1200_JOIN_STATUS_AP ||
- priv->beacon_int != conf->beacon_int) {
- pr_debug("ap restarting\n");
- wsm_lock_tx(priv);
- if (priv->join_status != CW1200_JOIN_STATUS_PASSIVE)
- wsm_reset(priv, &reset);
- priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
- cw1200_start_ap(priv);
- wsm_unlock_tx(priv);
- } else
- pr_debug("ap started join_status: %d\n",
- priv->join_status);
- }
- return 0;
-}
+++ /dev/null
-/*
- * Mac80211 STA interface for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef STA_H_INCLUDED
-#define STA_H_INCLUDED
-
-/* ******************************************************************** */
-/* mac80211 API */
-
-int cw1200_start(struct ieee80211_hw *dev);
-void cw1200_stop(struct ieee80211_hw *dev);
-int cw1200_add_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif);
-void cw1200_remove_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif);
-int cw1200_change_interface(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- enum nl80211_iftype new_type,
- bool p2p);
-int cw1200_config(struct ieee80211_hw *dev, u32 changed);
-void cw1200_configure_filter(struct ieee80211_hw *dev,
- unsigned int changed_flags,
- unsigned int *total_flags,
- u64 multicast);
-int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
- u16 queue, const struct ieee80211_tx_queue_params *params);
-int cw1200_get_stats(struct ieee80211_hw *dev,
- struct ieee80211_low_level_stats *stats);
-int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key);
-
-int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
-
-void cw1200_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- u32 queues, bool drop);
-
-u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
- struct netdev_hw_addr_list *mc_list);
-
-int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
-
-/* ******************************************************************** */
-/* WSM callbacks */
-
-void cw1200_join_complete_cb(struct cw1200_common *priv,
- struct wsm_join_complete *arg);
-
-/* ******************************************************************** */
-/* WSM events */
-
-void cw1200_free_event_queue(struct cw1200_common *priv);
-void cw1200_event_handler(struct work_struct *work);
-void cw1200_bss_loss_work(struct work_struct *work);
-void cw1200_bss_params_work(struct work_struct *work);
-void cw1200_keep_alive_work(struct work_struct *work);
-void cw1200_tx_failure_work(struct work_struct *work);
-
-void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv, int init, int good,
- int bad);
-static inline void cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
- int init, int good, int bad)
-{
- spin_lock(&priv->bss_loss_lock);
- __cw1200_cqm_bssloss_sm(priv, init, good, bad);
- spin_unlock(&priv->bss_loss_lock);
-}
-
-/* ******************************************************************** */
-/* Internal API */
-
-int cw1200_setup_mac(struct cw1200_common *priv);
-void cw1200_join_timeout(struct work_struct *work);
-void cw1200_unjoin_work(struct work_struct *work);
-void cw1200_join_complete_work(struct work_struct *work);
-void cw1200_wep_key_work(struct work_struct *work);
-void cw1200_update_listening(struct cw1200_common *priv, bool enabled);
-void cw1200_update_filtering(struct cw1200_common *priv);
-void cw1200_update_filtering_work(struct work_struct *work);
-void cw1200_set_beacon_wakeup_period_work(struct work_struct *work);
-int cw1200_enable_listening(struct cw1200_common *priv);
-int cw1200_disable_listening(struct cw1200_common *priv);
-int cw1200_set_uapsd_param(struct cw1200_common *priv,
- const struct wsm_edca_params *arg);
-void cw1200_ba_work(struct work_struct *work);
-void cw1200_ba_timer(unsigned long arg);
-
-/* AP stuffs */
-int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
- bool set);
-int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta);
-int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta);
-void cw1200_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
- enum sta_notify_cmd notify_cmd,
- struct ieee80211_sta *sta);
-void cw1200_bss_info_changed(struct ieee80211_hw *dev,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *info,
- u32 changed);
-int cw1200_ampdu_action(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum ieee80211_ampdu_mlme_action action,
- struct ieee80211_sta *sta, u16 tid, u16 *ssn,
- u8 buf_size, bool amsdu);
-
-void cw1200_suspend_resume(struct cw1200_common *priv,
- struct wsm_suspend_resume *arg);
-void cw1200_set_tim_work(struct work_struct *work);
-void cw1200_set_cts_work(struct work_struct *work);
-void cw1200_multicast_start_work(struct work_struct *work);
-void cw1200_multicast_stop_work(struct work_struct *work);
-void cw1200_mcast_timeout(unsigned long arg);
-
-#endif
+++ /dev/null
-/*
- * Datapath implementation for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-
-#include "cw1200.h"
-#include "wsm.h"
-#include "bh.h"
-#include "sta.h"
-#include "debug.h"
-
-#define CW1200_INVALID_RATE_ID (0xFF)
-
-static int cw1200_handle_action_rx(struct cw1200_common *priv,
- struct sk_buff *skb);
-static const struct ieee80211_rate *
-cw1200_get_tx_rate(const struct cw1200_common *priv,
- const struct ieee80211_tx_rate *rate);
-
-/* ******************************************************************** */
-/* TX queue lock / unlock */
-
-static inline void cw1200_tx_queues_lock(struct cw1200_common *priv)
-{
- int i;
- for (i = 0; i < 4; ++i)
- cw1200_queue_lock(&priv->tx_queue[i]);
-}
-
-static inline void cw1200_tx_queues_unlock(struct cw1200_common *priv)
-{
- int i;
- for (i = 0; i < 4; ++i)
- cw1200_queue_unlock(&priv->tx_queue[i]);
-}
-
-/* ******************************************************************** */
-/* TX policy cache implementation */
-
-static void tx_policy_dump(struct tx_policy *policy)
-{
- pr_debug("[TX policy] %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X: %d\n",
- policy->raw[0] & 0x0F, policy->raw[0] >> 4,
- policy->raw[1] & 0x0F, policy->raw[1] >> 4,
- policy->raw[2] & 0x0F, policy->raw[2] >> 4,
- policy->raw[3] & 0x0F, policy->raw[3] >> 4,
- policy->raw[4] & 0x0F, policy->raw[4] >> 4,
- policy->raw[5] & 0x0F, policy->raw[5] >> 4,
- policy->raw[6] & 0x0F, policy->raw[6] >> 4,
- policy->raw[7] & 0x0F, policy->raw[7] >> 4,
- policy->raw[8] & 0x0F, policy->raw[8] >> 4,
- policy->raw[9] & 0x0F, policy->raw[9] >> 4,
- policy->raw[10] & 0x0F, policy->raw[10] >> 4,
- policy->raw[11] & 0x0F, policy->raw[11] >> 4,
- policy->defined);
-}
-
-static void tx_policy_build(const struct cw1200_common *priv,
- /* [out] */ struct tx_policy *policy,
- struct ieee80211_tx_rate *rates, size_t count)
-{
- int i, j;
- unsigned limit = priv->short_frame_max_tx_count;
- unsigned total = 0;
- BUG_ON(rates[0].idx < 0);
- memset(policy, 0, sizeof(*policy));
-
- /* Sort rates in descending order. */
- for (i = 1; i < count; ++i) {
- if (rates[i].idx < 0) {
- count = i;
- break;
- }
- if (rates[i].idx > rates[i - 1].idx) {
- struct ieee80211_tx_rate tmp = rates[i - 1];
- rates[i - 1] = rates[i];
- rates[i] = tmp;
- }
- }
-
- /* Eliminate duplicates. */
- total = rates[0].count;
- for (i = 0, j = 1; j < count; ++j) {
- if (rates[j].idx == rates[i].idx) {
- rates[i].count += rates[j].count;
- } else if (rates[j].idx > rates[i].idx) {
- break;
- } else {
- ++i;
- if (i != j)
- rates[i] = rates[j];
- }
- total += rates[j].count;
- }
- count = i + 1;
-
- /* Re-fill policy trying to keep every requested rate and with
- * respect to the global max tx retransmission count.
- */
- if (limit < count)
- limit = count;
- if (total > limit) {
- for (i = 0; i < count; ++i) {
- int left = count - i - 1;
- if (rates[i].count > limit - left)
- rates[i].count = limit - left;
- limit -= rates[i].count;
- }
- }
-
- /* HACK!!! Device has problems (at least) switching from
- * 54Mbps CTS to 1Mbps. This switch takes enormous amount
- * of time (100-200 ms), leading to valuable throughput drop.
- * As a workaround, additional g-rates are injected to the
- * policy.
- */
- if (count == 2 && !(rates[0].flags & IEEE80211_TX_RC_MCS) &&
- rates[0].idx > 4 && rates[0].count > 2 &&
- rates[1].idx < 2) {
- int mid_rate = (rates[0].idx + 4) >> 1;
-
- /* Decrease number of retries for the initial rate */
- rates[0].count -= 2;
-
- if (mid_rate != 4) {
- /* Keep fallback rate at 1Mbps. */
- rates[3] = rates[1];
-
- /* Inject 1 transmission on lowest g-rate */
- rates[2].idx = 4;
- rates[2].count = 1;
- rates[2].flags = rates[1].flags;
-
- /* Inject 1 transmission on mid-rate */
- rates[1].idx = mid_rate;
- rates[1].count = 1;
-
- /* Fallback to 1 Mbps is a really bad thing,
- * so let's try to increase probability of
- * successful transmission on the lowest g rate
- * even more
- */
- if (rates[0].count >= 3) {
- --rates[0].count;
- ++rates[2].count;
- }
-
- /* Adjust amount of rates defined */
- count += 2;
- } else {
- /* Keep fallback rate at 1Mbps. */
- rates[2] = rates[1];
-
- /* Inject 2 transmissions on lowest g-rate */
- rates[1].idx = 4;
- rates[1].count = 2;
-
- /* Adjust amount of rates defined */
- count += 1;
- }
- }
-
- policy->defined = cw1200_get_tx_rate(priv, &rates[0])->hw_value + 1;
-
- for (i = 0; i < count; ++i) {
- register unsigned rateid, off, shift, retries;
-
- rateid = cw1200_get_tx_rate(priv, &rates[i])->hw_value;
- off = rateid >> 3; /* eq. rateid / 8 */
- shift = (rateid & 0x07) << 2; /* eq. (rateid % 8) * 4 */
-
- retries = rates[i].count;
- if (retries > 0x0F) {
- rates[i].count = 0x0f;
- retries = 0x0F;
- }
- policy->tbl[off] |= __cpu_to_le32(retries << shift);
- policy->retry_count += retries;
- }
-
- pr_debug("[TX policy] Policy (%zu): %d:%d, %d:%d, %d:%d, %d:%d\n",
- count,
- rates[0].idx, rates[0].count,
- rates[1].idx, rates[1].count,
- rates[2].idx, rates[2].count,
- rates[3].idx, rates[3].count);
-}
-
-static inline bool tx_policy_is_equal(const struct tx_policy *wanted,
- const struct tx_policy *cached)
-{
- size_t count = wanted->defined >> 1;
- if (wanted->defined > cached->defined)
- return false;
- if (count) {
- if (memcmp(wanted->raw, cached->raw, count))
- return false;
- }
- if (wanted->defined & 1) {
- if ((wanted->raw[count] & 0x0F) != (cached->raw[count] & 0x0F))
- return false;
- }
- return true;
-}
-
-static int tx_policy_find(struct tx_policy_cache *cache,
- const struct tx_policy *wanted)
-{
- /* O(n) complexity. Not so good, but there's only 8 entries in
- * the cache.
- * Also lru helps to reduce search time.
- */
- struct tx_policy_cache_entry *it;
- /* First search for policy in "used" list */
- list_for_each_entry(it, &cache->used, link) {
- if (tx_policy_is_equal(wanted, &it->policy))
- return it - cache->cache;
- }
- /* Then - in "free list" */
- list_for_each_entry(it, &cache->free, link) {
- if (tx_policy_is_equal(wanted, &it->policy))
- return it - cache->cache;
- }
- return -1;
-}
-
-static inline void tx_policy_use(struct tx_policy_cache *cache,
- struct tx_policy_cache_entry *entry)
-{
- ++entry->policy.usage_count;
- list_move(&entry->link, &cache->used);
-}
-
-static inline int tx_policy_release(struct tx_policy_cache *cache,
- struct tx_policy_cache_entry *entry)
-{
- int ret = --entry->policy.usage_count;
- if (!ret)
- list_move(&entry->link, &cache->free);
- return ret;
-}
-
-void tx_policy_clean(struct cw1200_common *priv)
-{
- int idx, locked;
- struct tx_policy_cache *cache = &priv->tx_policy_cache;
- struct tx_policy_cache_entry *entry;
-
- cw1200_tx_queues_lock(priv);
- spin_lock_bh(&cache->lock);
- locked = list_empty(&cache->free);
-
- for (idx = 0; idx < TX_POLICY_CACHE_SIZE; idx++) {
- entry = &cache->cache[idx];
- /* Policy usage count should be 0 at this time as all queues
- should be empty
- */
- if (WARN_ON(entry->policy.usage_count)) {
- entry->policy.usage_count = 0;
- list_move(&entry->link, &cache->free);
- }
- memset(&entry->policy, 0, sizeof(entry->policy));
- }
- if (locked)
- cw1200_tx_queues_unlock(priv);
-
- cw1200_tx_queues_unlock(priv);
- spin_unlock_bh(&cache->lock);
-}
-
-/* ******************************************************************** */
-/* External TX policy cache API */
-
-void tx_policy_init(struct cw1200_common *priv)
-{
- struct tx_policy_cache *cache = &priv->tx_policy_cache;
- int i;
-
- memset(cache, 0, sizeof(*cache));
-
- spin_lock_init(&cache->lock);
- INIT_LIST_HEAD(&cache->used);
- INIT_LIST_HEAD(&cache->free);
-
- for (i = 0; i < TX_POLICY_CACHE_SIZE; ++i)
- list_add(&cache->cache[i].link, &cache->free);
-}
-
-static int tx_policy_get(struct cw1200_common *priv,
- struct ieee80211_tx_rate *rates,
- size_t count, bool *renew)
-{
- int idx;
- struct tx_policy_cache *cache = &priv->tx_policy_cache;
- struct tx_policy wanted;
-
- tx_policy_build(priv, &wanted, rates, count);
-
- spin_lock_bh(&cache->lock);
- if (WARN_ON_ONCE(list_empty(&cache->free))) {
- spin_unlock_bh(&cache->lock);
- return CW1200_INVALID_RATE_ID;
- }
- idx = tx_policy_find(cache, &wanted);
- if (idx >= 0) {
- pr_debug("[TX policy] Used TX policy: %d\n", idx);
- *renew = false;
- } else {
- struct tx_policy_cache_entry *entry;
- *renew = true;
- /* If policy is not found create a new one
- * using the oldest entry in "free" list
- */
- entry = list_entry(cache->free.prev,
- struct tx_policy_cache_entry, link);
- entry->policy = wanted;
- idx = entry - cache->cache;
- pr_debug("[TX policy] New TX policy: %d\n", idx);
- tx_policy_dump(&entry->policy);
- }
- tx_policy_use(cache, &cache->cache[idx]);
- if (list_empty(&cache->free)) {
- /* Lock TX queues. */
- cw1200_tx_queues_lock(priv);
- }
- spin_unlock_bh(&cache->lock);
- return idx;
-}
-
-static void tx_policy_put(struct cw1200_common *priv, int idx)
-{
- int usage, locked;
- struct tx_policy_cache *cache = &priv->tx_policy_cache;
-
- spin_lock_bh(&cache->lock);
- locked = list_empty(&cache->free);
- usage = tx_policy_release(cache, &cache->cache[idx]);
- if (locked && !usage) {
- /* Unlock TX queues. */
- cw1200_tx_queues_unlock(priv);
- }
- spin_unlock_bh(&cache->lock);
-}
-
-static int tx_policy_upload(struct cw1200_common *priv)
-{
- struct tx_policy_cache *cache = &priv->tx_policy_cache;
- int i;
- struct wsm_set_tx_rate_retry_policy arg = {
- .num = 0,
- };
- spin_lock_bh(&cache->lock);
-
- /* Upload only modified entries. */
- for (i = 0; i < TX_POLICY_CACHE_SIZE; ++i) {
- struct tx_policy *src = &cache->cache[i].policy;
- if (src->retry_count && !src->uploaded) {
- struct wsm_tx_rate_retry_policy *dst =
- &arg.tbl[arg.num];
- dst->index = i;
- dst->short_retries = priv->short_frame_max_tx_count;
- dst->long_retries = priv->long_frame_max_tx_count;
-
- dst->flags = WSM_TX_RATE_POLICY_FLAG_TERMINATE_WHEN_FINISHED |
- WSM_TX_RATE_POLICY_FLAG_COUNT_INITIAL_TRANSMIT;
- memcpy(dst->rate_count_indices, src->tbl,
- sizeof(dst->rate_count_indices));
- src->uploaded = 1;
- ++arg.num;
- }
- }
- spin_unlock_bh(&cache->lock);
- cw1200_debug_tx_cache_miss(priv);
- pr_debug("[TX policy] Upload %d policies\n", arg.num);
- return wsm_set_tx_rate_retry_policy(priv, &arg);
-}
-
-void tx_policy_upload_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, tx_policy_upload_work);
-
- pr_debug("[TX] TX policy upload.\n");
- tx_policy_upload(priv);
-
- wsm_unlock_tx(priv);
- cw1200_tx_queues_unlock(priv);
-}
-
-/* ******************************************************************** */
-/* cw1200 TX implementation */
-
-struct cw1200_txinfo {
- struct sk_buff *skb;
- unsigned queue;
- struct ieee80211_tx_info *tx_info;
- const struct ieee80211_rate *rate;
- struct ieee80211_hdr *hdr;
- size_t hdrlen;
- const u8 *da;
- struct cw1200_sta_priv *sta_priv;
- struct ieee80211_sta *sta;
- struct cw1200_txpriv txpriv;
-};
-
-u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv, u32 rates)
-{
- u32 ret = 0;
- int i;
- for (i = 0; i < 32; ++i) {
- if (rates & BIT(i))
- ret |= BIT(priv->rates[i].hw_value);
- }
- return ret;
-}
-
-static const struct ieee80211_rate *
-cw1200_get_tx_rate(const struct cw1200_common *priv,
- const struct ieee80211_tx_rate *rate)
-{
- if (rate->idx < 0)
- return NULL;
- if (rate->flags & IEEE80211_TX_RC_MCS)
- return &priv->mcs_rates[rate->idx];
- return &priv->hw->wiphy->bands[priv->channel->band]->
- bitrates[rate->idx];
-}
-
-static int
-cw1200_tx_h_calc_link_ids(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- if (t->sta && t->sta_priv->link_id)
- t->txpriv.raw_link_id =
- t->txpriv.link_id =
- t->sta_priv->link_id;
- else if (priv->mode != NL80211_IFTYPE_AP)
- t->txpriv.raw_link_id =
- t->txpriv.link_id = 0;
- else if (is_multicast_ether_addr(t->da)) {
- if (priv->enable_beacon) {
- t->txpriv.raw_link_id = 0;
- t->txpriv.link_id = CW1200_LINK_ID_AFTER_DTIM;
- } else {
- t->txpriv.raw_link_id = 0;
- t->txpriv.link_id = 0;
- }
- } else {
- t->txpriv.link_id = cw1200_find_link_id(priv, t->da);
- if (!t->txpriv.link_id)
- t->txpriv.link_id = cw1200_alloc_link_id(priv, t->da);
- if (!t->txpriv.link_id) {
- wiphy_err(priv->hw->wiphy,
- "No more link IDs available.\n");
- return -ENOENT;
- }
- t->txpriv.raw_link_id = t->txpriv.link_id;
- }
- if (t->txpriv.raw_link_id)
- priv->link_id_db[t->txpriv.raw_link_id - 1].timestamp =
- jiffies;
- if (t->sta && (t->sta->uapsd_queues & BIT(t->queue)))
- t->txpriv.link_id = CW1200_LINK_ID_UAPSD;
- return 0;
-}
-
-static void
-cw1200_tx_h_pm(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- if (ieee80211_is_auth(t->hdr->frame_control)) {
- u32 mask = ~BIT(t->txpriv.raw_link_id);
- spin_lock_bh(&priv->ps_state_lock);
- priv->sta_asleep_mask &= mask;
- priv->pspoll_mask &= mask;
- spin_unlock_bh(&priv->ps_state_lock);
- }
-}
-
-static void
-cw1200_tx_h_calc_tid(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- if (ieee80211_is_data_qos(t->hdr->frame_control)) {
- u8 *qos = ieee80211_get_qos_ctl(t->hdr);
- t->txpriv.tid = qos[0] & IEEE80211_QOS_CTL_TID_MASK;
- } else if (ieee80211_is_data(t->hdr->frame_control)) {
- t->txpriv.tid = 0;
- }
-}
-
-static int
-cw1200_tx_h_crypt(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- if (!t->tx_info->control.hw_key ||
- !ieee80211_has_protected(t->hdr->frame_control))
- return 0;
-
- t->hdrlen += t->tx_info->control.hw_key->iv_len;
- skb_put(t->skb, t->tx_info->control.hw_key->icv_len);
-
- if (t->tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
- skb_put(t->skb, 8); /* MIC space */
-
- return 0;
-}
-
-static int
-cw1200_tx_h_align(struct cw1200_common *priv,
- struct cw1200_txinfo *t,
- u8 *flags)
-{
- size_t offset = (size_t)t->skb->data & 3;
-
- if (!offset)
- return 0;
-
- if (offset & 1) {
- wiphy_err(priv->hw->wiphy,
- "Bug: attempt to transmit a frame with wrong alignment: %zu\n",
- offset);
- return -EINVAL;
- }
-
- if (skb_headroom(t->skb) < offset) {
- wiphy_err(priv->hw->wiphy,
- "Bug: no space allocated for DMA alignment. headroom: %d\n",
- skb_headroom(t->skb));
- return -ENOMEM;
- }
- skb_push(t->skb, offset);
- t->hdrlen += offset;
- t->txpriv.offset += offset;
- *flags |= WSM_TX_2BYTES_SHIFT;
- cw1200_debug_tx_align(priv);
- return 0;
-}
-
-static int
-cw1200_tx_h_action(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- struct ieee80211_mgmt *mgmt =
- (struct ieee80211_mgmt *)t->hdr;
- if (ieee80211_is_action(t->hdr->frame_control) &&
- mgmt->u.action.category == WLAN_CATEGORY_BACK)
- return 1;
- else
- return 0;
-}
-
-/* Add WSM header */
-static struct wsm_tx *
-cw1200_tx_h_wsm(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- struct wsm_tx *wsm;
-
- if (skb_headroom(t->skb) < sizeof(struct wsm_tx)) {
- wiphy_err(priv->hw->wiphy,
- "Bug: no space allocated for WSM header. headroom: %d\n",
- skb_headroom(t->skb));
- return NULL;
- }
-
- wsm = (struct wsm_tx *)skb_push(t->skb, sizeof(struct wsm_tx));
- t->txpriv.offset += sizeof(struct wsm_tx);
- memset(wsm, 0, sizeof(*wsm));
- wsm->hdr.len = __cpu_to_le16(t->skb->len);
- wsm->hdr.id = __cpu_to_le16(0x0004);
- wsm->queue_id = wsm_queue_id_to_wsm(t->queue);
- return wsm;
-}
-
-/* BT Coex specific handling */
-static void
-cw1200_tx_h_bt(struct cw1200_common *priv,
- struct cw1200_txinfo *t,
- struct wsm_tx *wsm)
-{
- u8 priority = 0;
-
- if (!priv->bt_present)
- return;
-
- if (ieee80211_is_nullfunc(t->hdr->frame_control)) {
- priority = WSM_EPTA_PRIORITY_MGT;
- } else if (ieee80211_is_data(t->hdr->frame_control)) {
- /* Skip LLC SNAP header (+6) */
- u8 *payload = &t->skb->data[t->hdrlen];
- __be16 *ethertype = (__be16 *)&payload[6];
- if (be16_to_cpu(*ethertype) == ETH_P_PAE)
- priority = WSM_EPTA_PRIORITY_EAPOL;
- } else if (ieee80211_is_assoc_req(t->hdr->frame_control) ||
- ieee80211_is_reassoc_req(t->hdr->frame_control)) {
- struct ieee80211_mgmt *mgt_frame =
- (struct ieee80211_mgmt *)t->hdr;
-
- if (le16_to_cpu(mgt_frame->u.assoc_req.listen_interval) <
- priv->listen_interval) {
- pr_debug("Modified Listen Interval to %d from %d\n",
- priv->listen_interval,
- mgt_frame->u.assoc_req.listen_interval);
- /* Replace listen interval derieved from
- * the one read from SDD
- */
- mgt_frame->u.assoc_req.listen_interval = cpu_to_le16(priv->listen_interval);
- }
- }
-
- if (!priority) {
- if (ieee80211_is_action(t->hdr->frame_control))
- priority = WSM_EPTA_PRIORITY_ACTION;
- else if (ieee80211_is_mgmt(t->hdr->frame_control))
- priority = WSM_EPTA_PRIORITY_MGT;
- else if ((wsm->queue_id == WSM_QUEUE_VOICE))
- priority = WSM_EPTA_PRIORITY_VOICE;
- else if ((wsm->queue_id == WSM_QUEUE_VIDEO))
- priority = WSM_EPTA_PRIORITY_VIDEO;
- else
- priority = WSM_EPTA_PRIORITY_DATA;
- }
-
- pr_debug("[TX] EPTA priority %d.\n", priority);
-
- wsm->flags |= priority << 1;
-}
-
-static int
-cw1200_tx_h_rate_policy(struct cw1200_common *priv,
- struct cw1200_txinfo *t,
- struct wsm_tx *wsm)
-{
- bool tx_policy_renew = false;
-
- t->txpriv.rate_id = tx_policy_get(priv,
- t->tx_info->control.rates, IEEE80211_TX_MAX_RATES,
- &tx_policy_renew);
- if (t->txpriv.rate_id == CW1200_INVALID_RATE_ID)
- return -EFAULT;
-
- wsm->flags |= t->txpriv.rate_id << 4;
-
- t->rate = cw1200_get_tx_rate(priv,
- &t->tx_info->control.rates[0]),
- wsm->max_tx_rate = t->rate->hw_value;
- if (t->rate->flags & IEEE80211_TX_RC_MCS) {
- if (cw1200_ht_greenfield(&priv->ht_info))
- wsm->ht_tx_parameters |=
- __cpu_to_le32(WSM_HT_TX_GREENFIELD);
- else
- wsm->ht_tx_parameters |=
- __cpu_to_le32(WSM_HT_TX_MIXED);
- }
-
- if (tx_policy_renew) {
- pr_debug("[TX] TX policy renew.\n");
- /* It's not so optimal to stop TX queues every now and then.
- * Better to reimplement task scheduling with
- * a counter. TODO.
- */
- wsm_lock_tx_async(priv);
- cw1200_tx_queues_lock(priv);
- if (queue_work(priv->workqueue,
- &priv->tx_policy_upload_work) <= 0) {
- cw1200_tx_queues_unlock(priv);
- wsm_unlock_tx(priv);
- }
- }
- return 0;
-}
-
-static bool
-cw1200_tx_h_pm_state(struct cw1200_common *priv,
- struct cw1200_txinfo *t)
-{
- int was_buffered = 1;
-
- if (t->txpriv.link_id == CW1200_LINK_ID_AFTER_DTIM &&
- !priv->buffered_multicasts) {
- priv->buffered_multicasts = true;
- if (priv->sta_asleep_mask)
- queue_work(priv->workqueue,
- &priv->multicast_start_work);
- }
-
- if (t->txpriv.raw_link_id && t->txpriv.tid < CW1200_MAX_TID)
- was_buffered = priv->link_id_db[t->txpriv.raw_link_id - 1].buffered[t->txpriv.tid]++;
-
- return !was_buffered;
-}
-
-/* ******************************************************************** */
-
-void cw1200_tx(struct ieee80211_hw *dev,
- struct ieee80211_tx_control *control,
- struct sk_buff *skb)
-{
- struct cw1200_common *priv = dev->priv;
- struct cw1200_txinfo t = {
- .skb = skb,
- .queue = skb_get_queue_mapping(skb),
- .tx_info = IEEE80211_SKB_CB(skb),
- .hdr = (struct ieee80211_hdr *)skb->data,
- .txpriv.tid = CW1200_MAX_TID,
- .txpriv.rate_id = CW1200_INVALID_RATE_ID,
- };
- struct ieee80211_sta *sta;
- struct wsm_tx *wsm;
- bool tid_update = 0;
- u8 flags = 0;
- int ret;
-
- if (priv->bh_error)
- goto drop;
-
- t.hdrlen = ieee80211_hdrlen(t.hdr->frame_control);
- t.da = ieee80211_get_DA(t.hdr);
- if (control) {
- t.sta = control->sta;
- t.sta_priv = (struct cw1200_sta_priv *)&t.sta->drv_priv;
- }
-
- if (WARN_ON(t.queue >= 4))
- goto drop;
-
- ret = cw1200_tx_h_calc_link_ids(priv, &t);
- if (ret)
- goto drop;
-
- pr_debug("[TX] TX %d bytes (queue: %d, link_id: %d (%d)).\n",
- skb->len, t.queue, t.txpriv.link_id,
- t.txpriv.raw_link_id);
-
- cw1200_tx_h_pm(priv, &t);
- cw1200_tx_h_calc_tid(priv, &t);
- ret = cw1200_tx_h_crypt(priv, &t);
- if (ret)
- goto drop;
- ret = cw1200_tx_h_align(priv, &t, &flags);
- if (ret)
- goto drop;
- ret = cw1200_tx_h_action(priv, &t);
- if (ret)
- goto drop;
- wsm = cw1200_tx_h_wsm(priv, &t);
- if (!wsm) {
- ret = -ENOMEM;
- goto drop;
- }
- wsm->flags |= flags;
- cw1200_tx_h_bt(priv, &t, wsm);
- ret = cw1200_tx_h_rate_policy(priv, &t, wsm);
- if (ret)
- goto drop;
-
- rcu_read_lock();
- sta = rcu_dereference(t.sta);
-
- spin_lock_bh(&priv->ps_state_lock);
- {
- tid_update = cw1200_tx_h_pm_state(priv, &t);
- BUG_ON(cw1200_queue_put(&priv->tx_queue[t.queue],
- t.skb, &t.txpriv));
- }
- spin_unlock_bh(&priv->ps_state_lock);
-
- if (tid_update && sta)
- ieee80211_sta_set_buffered(sta, t.txpriv.tid, true);
-
- rcu_read_unlock();
-
- cw1200_bh_wakeup(priv);
-
- return;
-
-drop:
- cw1200_skb_dtor(priv, skb, &t.txpriv);
- return;
-}
-
-/* ******************************************************************** */
-
-static int cw1200_handle_action_rx(struct cw1200_common *priv,
- struct sk_buff *skb)
-{
- struct ieee80211_mgmt *mgmt = (void *)skb->data;
-
- /* Filter block ACK negotiation: fully controlled by firmware */
- if (mgmt->u.action.category == WLAN_CATEGORY_BACK)
- return 1;
-
- return 0;
-}
-
-static int cw1200_handle_pspoll(struct cw1200_common *priv,
- struct sk_buff *skb)
-{
- struct ieee80211_sta *sta;
- struct ieee80211_pspoll *pspoll = (struct ieee80211_pspoll *)skb->data;
- int link_id = 0;
- u32 pspoll_mask = 0;
- int drop = 1;
- int i;
-
- if (priv->join_status != CW1200_JOIN_STATUS_AP)
- goto done;
- if (memcmp(priv->vif->addr, pspoll->bssid, ETH_ALEN))
- goto done;
-
- rcu_read_lock();
- sta = ieee80211_find_sta(priv->vif, pspoll->ta);
- if (sta) {
- struct cw1200_sta_priv *sta_priv;
- sta_priv = (struct cw1200_sta_priv *)&sta->drv_priv;
- link_id = sta_priv->link_id;
- pspoll_mask = BIT(sta_priv->link_id);
- }
- rcu_read_unlock();
- if (!link_id)
- goto done;
-
- priv->pspoll_mask |= pspoll_mask;
- drop = 0;
-
- /* Do not report pspols if data for given link id is queued already. */
- for (i = 0; i < 4; ++i) {
- if (cw1200_queue_get_num_queued(&priv->tx_queue[i],
- pspoll_mask)) {
- cw1200_bh_wakeup(priv);
- drop = 1;
- break;
- }
- }
- pr_debug("[RX] PSPOLL: %s\n", drop ? "local" : "fwd");
-done:
- return drop;
-}
-
-/* ******************************************************************** */
-
-void cw1200_tx_confirm_cb(struct cw1200_common *priv,
- int link_id,
- struct wsm_tx_confirm *arg)
-{
- u8 queue_id = cw1200_queue_get_queue_id(arg->packet_id);
- struct cw1200_queue *queue = &priv->tx_queue[queue_id];
- struct sk_buff *skb;
- const struct cw1200_txpriv *txpriv;
-
- pr_debug("[TX] TX confirm: %d, %d.\n",
- arg->status, arg->ack_failures);
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
- /* STA is stopped. */
- return;
- }
-
- if (WARN_ON(queue_id >= 4))
- return;
-
- if (arg->status)
- pr_debug("TX failed: %d.\n", arg->status);
-
- if ((arg->status == WSM_REQUEUE) &&
- (arg->flags & WSM_TX_STATUS_REQUEUE)) {
- /* "Requeue" means "implicit suspend" */
- struct wsm_suspend_resume suspend = {
- .link_id = link_id,
- .stop = 1,
- .multicast = !link_id,
- };
- cw1200_suspend_resume(priv, &suspend);
- wiphy_warn(priv->hw->wiphy, "Requeue for link_id %d (try %d). STAs asleep: 0x%.8X\n",
- link_id,
- cw1200_queue_get_generation(arg->packet_id) + 1,
- priv->sta_asleep_mask);
- cw1200_queue_requeue(queue, arg->packet_id);
- spin_lock_bh(&priv->ps_state_lock);
- if (!link_id) {
- priv->buffered_multicasts = true;
- if (priv->sta_asleep_mask) {
- queue_work(priv->workqueue,
- &priv->multicast_start_work);
- }
- }
- spin_unlock_bh(&priv->ps_state_lock);
- } else if (!cw1200_queue_get_skb(queue, arg->packet_id,
- &skb, &txpriv)) {
- struct ieee80211_tx_info *tx = IEEE80211_SKB_CB(skb);
- int tx_count = arg->ack_failures;
- u8 ht_flags = 0;
- int i;
-
- if (cw1200_ht_greenfield(&priv->ht_info))
- ht_flags |= IEEE80211_TX_RC_GREEN_FIELD;
-
- spin_lock(&priv->bss_loss_lock);
- if (priv->bss_loss_state &&
- arg->packet_id == priv->bss_loss_confirm_id) {
- if (arg->status) {
- /* Recovery failed */
- __cw1200_cqm_bssloss_sm(priv, 0, 0, 1);
- } else {
- /* Recovery succeeded */
- __cw1200_cqm_bssloss_sm(priv, 0, 1, 0);
- }
- }
- spin_unlock(&priv->bss_loss_lock);
-
- if (!arg->status) {
- tx->flags |= IEEE80211_TX_STAT_ACK;
- ++tx_count;
- cw1200_debug_txed(priv);
- if (arg->flags & WSM_TX_STATUS_AGGREGATION) {
- /* Do not report aggregation to mac80211:
- * it confuses minstrel a lot.
- */
- /* tx->flags |= IEEE80211_TX_STAT_AMPDU; */
- cw1200_debug_txed_agg(priv);
- }
- } else {
- if (tx_count)
- ++tx_count;
- }
-
- for (i = 0; i < IEEE80211_TX_MAX_RATES; ++i) {
- if (tx->status.rates[i].count >= tx_count) {
- tx->status.rates[i].count = tx_count;
- break;
- }
- tx_count -= tx->status.rates[i].count;
- if (tx->status.rates[i].flags & IEEE80211_TX_RC_MCS)
- tx->status.rates[i].flags |= ht_flags;
- }
-
- for (++i; i < IEEE80211_TX_MAX_RATES; ++i) {
- tx->status.rates[i].count = 0;
- tx->status.rates[i].idx = -1;
- }
-
- /* Pull off any crypto trailers that we added on */
- if (tx->control.hw_key) {
- skb_trim(skb, skb->len - tx->control.hw_key->icv_len);
- if (tx->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
- skb_trim(skb, skb->len - 8); /* MIC space */
- }
- cw1200_queue_remove(queue, arg->packet_id);
- }
- /* XXX TODO: Only wake if there are pending transmits.. */
- cw1200_bh_wakeup(priv);
-}
-
-static void cw1200_notify_buffered_tx(struct cw1200_common *priv,
- struct sk_buff *skb, int link_id, int tid)
-{
- struct ieee80211_sta *sta;
- struct ieee80211_hdr *hdr;
- u8 *buffered;
- u8 still_buffered = 0;
-
- if (link_id && tid < CW1200_MAX_TID) {
- buffered = priv->link_id_db
- [link_id - 1].buffered;
-
- spin_lock_bh(&priv->ps_state_lock);
- if (!WARN_ON(!buffered[tid]))
- still_buffered = --buffered[tid];
- spin_unlock_bh(&priv->ps_state_lock);
-
- if (!still_buffered && tid < CW1200_MAX_TID) {
- hdr = (struct ieee80211_hdr *)skb->data;
- rcu_read_lock();
- sta = ieee80211_find_sta(priv->vif, hdr->addr1);
- if (sta)
- ieee80211_sta_set_buffered(sta, tid, false);
- rcu_read_unlock();
- }
- }
-}
-
-void cw1200_skb_dtor(struct cw1200_common *priv,
- struct sk_buff *skb,
- const struct cw1200_txpriv *txpriv)
-{
- skb_pull(skb, txpriv->offset);
- if (txpriv->rate_id != CW1200_INVALID_RATE_ID) {
- cw1200_notify_buffered_tx(priv, skb,
- txpriv->raw_link_id, txpriv->tid);
- tx_policy_put(priv, txpriv->rate_id);
- }
- ieee80211_tx_status(priv->hw, skb);
-}
-
-void cw1200_rx_cb(struct cw1200_common *priv,
- struct wsm_rx *arg,
- int link_id,
- struct sk_buff **skb_p)
-{
- struct sk_buff *skb = *skb_p;
- struct ieee80211_rx_status *hdr = IEEE80211_SKB_RXCB(skb);
- struct ieee80211_hdr *frame = (struct ieee80211_hdr *)skb->data;
- struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
- struct cw1200_link_entry *entry = NULL;
- unsigned long grace_period;
-
- bool early_data = false;
- bool p2p = priv->vif && priv->vif->p2p;
- size_t hdrlen;
- hdr->flag = 0;
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
- /* STA is stopped. */
- goto drop;
- }
-
- if (link_id && link_id <= CW1200_MAX_STA_IN_AP_MODE) {
- entry = &priv->link_id_db[link_id - 1];
- if (entry->status == CW1200_LINK_SOFT &&
- ieee80211_is_data(frame->frame_control))
- early_data = true;
- entry->timestamp = jiffies;
- } else if (p2p &&
- ieee80211_is_action(frame->frame_control) &&
- (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
- pr_debug("[RX] Going to MAP&RESET link ID\n");
- WARN_ON(work_pending(&priv->linkid_reset_work));
- memcpy(&priv->action_frame_sa[0],
- ieee80211_get_SA(frame), ETH_ALEN);
- priv->action_linkid = 0;
- schedule_work(&priv->linkid_reset_work);
- }
-
- if (link_id && p2p &&
- ieee80211_is_action(frame->frame_control) &&
- (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
- /* Link ID already exists for the ACTION frame.
- * Reset and Remap
- */
- WARN_ON(work_pending(&priv->linkid_reset_work));
- memcpy(&priv->action_frame_sa[0],
- ieee80211_get_SA(frame), ETH_ALEN);
- priv->action_linkid = link_id;
- schedule_work(&priv->linkid_reset_work);
- }
- if (arg->status) {
- if (arg->status == WSM_STATUS_MICFAILURE) {
- pr_debug("[RX] MIC failure.\n");
- hdr->flag |= RX_FLAG_MMIC_ERROR;
- } else if (arg->status == WSM_STATUS_NO_KEY_FOUND) {
- pr_debug("[RX] No key found.\n");
- goto drop;
- } else {
- pr_debug("[RX] Receive failure: %d.\n",
- arg->status);
- goto drop;
- }
- }
-
- if (skb->len < sizeof(struct ieee80211_pspoll)) {
- wiphy_warn(priv->hw->wiphy, "Mailformed SDU rx'ed. Size is lesser than IEEE header.\n");
- goto drop;
- }
-
- if (ieee80211_is_pspoll(frame->frame_control))
- if (cw1200_handle_pspoll(priv, skb))
- goto drop;
-
- hdr->band = ((arg->channel_number & 0xff00) ||
- (arg->channel_number > 14)) ?
- IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
- hdr->freq = ieee80211_channel_to_frequency(
- arg->channel_number,
- hdr->band);
-
- if (arg->rx_rate >= 14) {
- hdr->flag |= RX_FLAG_HT;
- hdr->rate_idx = arg->rx_rate - 14;
- } else if (arg->rx_rate >= 4) {
- hdr->rate_idx = arg->rx_rate - 2;
- } else {
- hdr->rate_idx = arg->rx_rate;
- }
-
- hdr->signal = (s8)arg->rcpi_rssi;
- hdr->antenna = 0;
-
- hdrlen = ieee80211_hdrlen(frame->frame_control);
-
- if (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
- size_t iv_len = 0, icv_len = 0;
-
- hdr->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED;
-
- /* Oops... There is no fast way to ask mac80211 about
- * IV/ICV lengths. Even defineas are not exposed.
- */
- switch (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
- case WSM_RX_STATUS_WEP:
- iv_len = 4 /* WEP_IV_LEN */;
- icv_len = 4 /* WEP_ICV_LEN */;
- break;
- case WSM_RX_STATUS_TKIP:
- iv_len = 8 /* TKIP_IV_LEN */;
- icv_len = 4 /* TKIP_ICV_LEN */
- + 8 /*MICHAEL_MIC_LEN*/;
- hdr->flag |= RX_FLAG_MMIC_STRIPPED;
- break;
- case WSM_RX_STATUS_AES:
- iv_len = 8 /* CCMP_HDR_LEN */;
- icv_len = 8 /* CCMP_MIC_LEN */;
- break;
- case WSM_RX_STATUS_WAPI:
- iv_len = 18 /* WAPI_HDR_LEN */;
- icv_len = 16 /* WAPI_MIC_LEN */;
- break;
- default:
- pr_warn("Unknown encryption type %d\n",
- WSM_RX_STATUS_ENCRYPTION(arg->flags));
- goto drop;
- }
-
- /* Firmware strips ICV in case of MIC failure. */
- if (arg->status == WSM_STATUS_MICFAILURE)
- icv_len = 0;
-
- if (skb->len < hdrlen + iv_len + icv_len) {
- wiphy_warn(priv->hw->wiphy, "Malformed SDU rx'ed. Size is lesser than crypto headers.\n");
- goto drop;
- }
-
- /* Remove IV, ICV and MIC */
- skb_trim(skb, skb->len - icv_len);
- memmove(skb->data + iv_len, skb->data, hdrlen);
- skb_pull(skb, iv_len);
- }
-
- /* Remove TSF from the end of frame */
- if (arg->flags & WSM_RX_STATUS_TSF_INCLUDED) {
- memcpy(&hdr->mactime, skb->data + skb->len - 8, 8);
- hdr->mactime = le64_to_cpu(hdr->mactime);
- if (skb->len >= 8)
- skb_trim(skb, skb->len - 8);
- } else {
- hdr->mactime = 0;
- }
-
- cw1200_debug_rxed(priv);
- if (arg->flags & WSM_RX_STATUS_AGGREGATE)
- cw1200_debug_rxed_agg(priv);
-
- if (ieee80211_is_action(frame->frame_control) &&
- (arg->flags & WSM_RX_STATUS_ADDRESS1)) {
- if (cw1200_handle_action_rx(priv, skb))
- return;
- } else if (ieee80211_is_beacon(frame->frame_control) &&
- !arg->status && priv->vif &&
- ether_addr_equal(ieee80211_get_SA(frame), priv->vif->bss_conf.bssid)) {
- const u8 *tim_ie;
- u8 *ies = ((struct ieee80211_mgmt *)
- (skb->data))->u.beacon.variable;
- size_t ies_len = skb->len - (ies - (u8 *)(skb->data));
-
- tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies, ies_len);
- if (tim_ie) {
- struct ieee80211_tim_ie *tim =
- (struct ieee80211_tim_ie *)&tim_ie[2];
-
- if (priv->join_dtim_period != tim->dtim_period) {
- priv->join_dtim_period = tim->dtim_period;
- queue_work(priv->workqueue,
- &priv->set_beacon_wakeup_period_work);
- }
- }
-
- /* Disable beacon filter once we're associated... */
- if (priv->disable_beacon_filter &&
- (priv->vif->bss_conf.assoc ||
- priv->vif->bss_conf.ibss_joined)) {
- priv->disable_beacon_filter = false;
- queue_work(priv->workqueue,
- &priv->update_filtering_work);
- }
- }
-
- /* Stay awake after frame is received to give
- * userspace chance to react and acquire appropriate
- * wakelock.
- */
- if (ieee80211_is_auth(frame->frame_control))
- grace_period = 5 * HZ;
- else if (ieee80211_is_deauth(frame->frame_control))
- grace_period = 5 * HZ;
- else
- grace_period = 1 * HZ;
- cw1200_pm_stay_awake(&priv->pm_state, grace_period);
-
- if (early_data) {
- spin_lock_bh(&priv->ps_state_lock);
- /* Double-check status with lock held */
- if (entry->status == CW1200_LINK_SOFT)
- skb_queue_tail(&entry->rx_queue, skb);
- else
- ieee80211_rx_irqsafe(priv->hw, skb);
- spin_unlock_bh(&priv->ps_state_lock);
- } else {
- ieee80211_rx_irqsafe(priv->hw, skb);
- }
- *skb_p = NULL;
-
- return;
-
-drop:
- /* TODO: update failure counters */
- return;
-}
-
-/* ******************************************************************** */
-/* Security */
-
-int cw1200_alloc_key(struct cw1200_common *priv)
-{
- int idx;
-
- idx = ffs(~priv->key_map) - 1;
- if (idx < 0 || idx > WSM_KEY_MAX_INDEX)
- return -1;
-
- priv->key_map |= BIT(idx);
- priv->keys[idx].index = idx;
- return idx;
-}
-
-void cw1200_free_key(struct cw1200_common *priv, int idx)
-{
- BUG_ON(!(priv->key_map & BIT(idx)));
- memset(&priv->keys[idx], 0, sizeof(priv->keys[idx]));
- priv->key_map &= ~BIT(idx);
-}
-
-void cw1200_free_keys(struct cw1200_common *priv)
-{
- memset(&priv->keys, 0, sizeof(priv->keys));
- priv->key_map = 0;
-}
-
-int cw1200_upload_keys(struct cw1200_common *priv)
-{
- int idx, ret = 0;
- for (idx = 0; idx <= WSM_KEY_MAX_INDEX; ++idx)
- if (priv->key_map & BIT(idx)) {
- ret = wsm_add_key(priv, &priv->keys[idx]);
- if (ret < 0)
- break;
- }
- return ret;
-}
-
-/* Workaround for WFD test case 6.1.10 */
-void cw1200_link_id_reset(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, linkid_reset_work);
- int temp_linkid;
-
- if (!priv->action_linkid) {
- /* In GO mode we can receive ACTION frames without a linkID */
- temp_linkid = cw1200_alloc_link_id(priv,
- &priv->action_frame_sa[0]);
- WARN_ON(!temp_linkid);
- if (temp_linkid) {
- /* Make sure we execute the WQ */
- flush_workqueue(priv->workqueue);
- /* Release the link ID */
- spin_lock_bh(&priv->ps_state_lock);
- priv->link_id_db[temp_linkid - 1].prev_status =
- priv->link_id_db[temp_linkid - 1].status;
- priv->link_id_db[temp_linkid - 1].status =
- CW1200_LINK_RESET;
- spin_unlock_bh(&priv->ps_state_lock);
- wsm_lock_tx_async(priv);
- if (queue_work(priv->workqueue,
- &priv->link_id_work) <= 0)
- wsm_unlock_tx(priv);
- }
- } else {
- spin_lock_bh(&priv->ps_state_lock);
- priv->link_id_db[priv->action_linkid - 1].prev_status =
- priv->link_id_db[priv->action_linkid - 1].status;
- priv->link_id_db[priv->action_linkid - 1].status =
- CW1200_LINK_RESET_REMAP;
- spin_unlock_bh(&priv->ps_state_lock);
- wsm_lock_tx_async(priv);
- if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
- wsm_unlock_tx(priv);
- flush_workqueue(priv->workqueue);
- }
-}
-
-int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac)
-{
- int i, ret = 0;
- spin_lock_bh(&priv->ps_state_lock);
- for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
- if (!memcmp(mac, priv->link_id_db[i].mac, ETH_ALEN) &&
- priv->link_id_db[i].status) {
- priv->link_id_db[i].timestamp = jiffies;
- ret = i + 1;
- break;
- }
- }
- spin_unlock_bh(&priv->ps_state_lock);
- return ret;
-}
-
-int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac)
-{
- int i, ret = 0;
- unsigned long max_inactivity = 0;
- unsigned long now = jiffies;
-
- spin_lock_bh(&priv->ps_state_lock);
- for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
- if (!priv->link_id_db[i].status) {
- ret = i + 1;
- break;
- } else if (priv->link_id_db[i].status != CW1200_LINK_HARD &&
- !priv->tx_queue_stats.link_map_cache[i + 1]) {
- unsigned long inactivity =
- now - priv->link_id_db[i].timestamp;
- if (inactivity < max_inactivity)
- continue;
- max_inactivity = inactivity;
- ret = i + 1;
- }
- }
- if (ret) {
- struct cw1200_link_entry *entry = &priv->link_id_db[ret - 1];
- pr_debug("[AP] STA added, link_id: %d\n", ret);
- entry->status = CW1200_LINK_RESERVE;
- memcpy(&entry->mac, mac, ETH_ALEN);
- memset(&entry->buffered, 0, CW1200_MAX_TID);
- skb_queue_head_init(&entry->rx_queue);
- wsm_lock_tx_async(priv);
- if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
- wsm_unlock_tx(priv);
- } else {
- wiphy_info(priv->hw->wiphy,
- "[AP] Early: no more link IDs available.\n");
- }
-
- spin_unlock_bh(&priv->ps_state_lock);
- return ret;
-}
-
-void cw1200_link_id_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, link_id_work);
- wsm_flush_tx(priv);
- cw1200_link_id_gc_work(&priv->link_id_gc_work.work);
- wsm_unlock_tx(priv);
-}
-
-void cw1200_link_id_gc_work(struct work_struct *work)
-{
- struct cw1200_common *priv =
- container_of(work, struct cw1200_common, link_id_gc_work.work);
- struct wsm_reset reset = {
- .reset_statistics = false,
- };
- struct wsm_map_link map_link = {
- .link_id = 0,
- };
- unsigned long now = jiffies;
- unsigned long next_gc = -1;
- long ttl;
- bool need_reset;
- u32 mask;
- int i;
-
- if (priv->join_status != CW1200_JOIN_STATUS_AP)
- return;
-
- wsm_lock_tx(priv);
- spin_lock_bh(&priv->ps_state_lock);
- for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
- need_reset = false;
- mask = BIT(i + 1);
- if (priv->link_id_db[i].status == CW1200_LINK_RESERVE ||
- (priv->link_id_db[i].status == CW1200_LINK_HARD &&
- !(priv->link_id_map & mask))) {
- if (priv->link_id_map & mask) {
- priv->sta_asleep_mask &= ~mask;
- priv->pspoll_mask &= ~mask;
- need_reset = true;
- }
- priv->link_id_map |= mask;
- if (priv->link_id_db[i].status != CW1200_LINK_HARD)
- priv->link_id_db[i].status = CW1200_LINK_SOFT;
- memcpy(map_link.mac_addr, priv->link_id_db[i].mac,
- ETH_ALEN);
- spin_unlock_bh(&priv->ps_state_lock);
- if (need_reset) {
- reset.link_id = i + 1;
- wsm_reset(priv, &reset);
- }
- map_link.link_id = i + 1;
- wsm_map_link(priv, &map_link);
- next_gc = min(next_gc, CW1200_LINK_ID_GC_TIMEOUT);
- spin_lock_bh(&priv->ps_state_lock);
- } else if (priv->link_id_db[i].status == CW1200_LINK_SOFT) {
- ttl = priv->link_id_db[i].timestamp - now +
- CW1200_LINK_ID_GC_TIMEOUT;
- if (ttl <= 0) {
- need_reset = true;
- priv->link_id_db[i].status = CW1200_LINK_OFF;
- priv->link_id_map &= ~mask;
- priv->sta_asleep_mask &= ~mask;
- priv->pspoll_mask &= ~mask;
- eth_zero_addr(map_link.mac_addr);
- spin_unlock_bh(&priv->ps_state_lock);
- reset.link_id = i + 1;
- wsm_reset(priv, &reset);
- spin_lock_bh(&priv->ps_state_lock);
- } else {
- next_gc = min_t(unsigned long, next_gc, ttl);
- }
- } else if (priv->link_id_db[i].status == CW1200_LINK_RESET ||
- priv->link_id_db[i].status ==
- CW1200_LINK_RESET_REMAP) {
- int status = priv->link_id_db[i].status;
- priv->link_id_db[i].status =
- priv->link_id_db[i].prev_status;
- priv->link_id_db[i].timestamp = now;
- reset.link_id = i + 1;
- spin_unlock_bh(&priv->ps_state_lock);
- wsm_reset(priv, &reset);
- if (status == CW1200_LINK_RESET_REMAP) {
- memcpy(map_link.mac_addr,
- priv->link_id_db[i].mac,
- ETH_ALEN);
- map_link.link_id = i + 1;
- wsm_map_link(priv, &map_link);
- next_gc = min(next_gc,
- CW1200_LINK_ID_GC_TIMEOUT);
- }
- spin_lock_bh(&priv->ps_state_lock);
- }
- if (need_reset) {
- skb_queue_purge(&priv->link_id_db[i].rx_queue);
- pr_debug("[AP] STA removed, link_id: %d\n",
- reset.link_id);
- }
- }
- spin_unlock_bh(&priv->ps_state_lock);
- if (next_gc != -1)
- queue_delayed_work(priv->workqueue,
- &priv->link_id_gc_work, next_gc);
- wsm_unlock_tx(priv);
-}
+++ /dev/null
-/*
- * Datapath interface for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_TXRX_H
-#define CW1200_TXRX_H
-
-#include <linux/list.h>
-
-/* extern */ struct ieee80211_hw;
-/* extern */ struct sk_buff;
-/* extern */ struct wsm_tx;
-/* extern */ struct wsm_rx;
-/* extern */ struct wsm_tx_confirm;
-/* extern */ struct cw1200_txpriv;
-
-struct tx_policy {
- union {
- __le32 tbl[3];
- u8 raw[12];
- };
- u8 defined;
- u8 usage_count;
- u8 retry_count;
- u8 uploaded;
-};
-
-struct tx_policy_cache_entry {
- struct tx_policy policy;
- struct list_head link;
-};
-
-#define TX_POLICY_CACHE_SIZE (8)
-struct tx_policy_cache {
- struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
- struct list_head used;
- struct list_head free;
- spinlock_t lock; /* Protect policy cache */
-};
-
-/* ******************************************************************** */
-/* TX policy cache */
-/* Intention of TX policy cache is an overcomplicated WSM API.
- * Device does not accept per-PDU tx retry sequence.
- * It uses "tx retry policy id" instead, so driver code has to sync
- * linux tx retry sequences with a retry policy table in the device.
- */
-void tx_policy_init(struct cw1200_common *priv);
-void tx_policy_upload_work(struct work_struct *work);
-void tx_policy_clean(struct cw1200_common *priv);
-
-/* ******************************************************************** */
-/* TX implementation */
-
-u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
- u32 rates);
-void cw1200_tx(struct ieee80211_hw *dev,
- struct ieee80211_tx_control *control,
- struct sk_buff *skb);
-void cw1200_skb_dtor(struct cw1200_common *priv,
- struct sk_buff *skb,
- const struct cw1200_txpriv *txpriv);
-
-/* ******************************************************************** */
-/* WSM callbacks */
-
-void cw1200_tx_confirm_cb(struct cw1200_common *priv,
- int link_id,
- struct wsm_tx_confirm *arg);
-void cw1200_rx_cb(struct cw1200_common *priv,
- struct wsm_rx *arg,
- int link_id,
- struct sk_buff **skb_p);
-
-/* ******************************************************************** */
-/* Timeout */
-
-void cw1200_tx_timeout(struct work_struct *work);
-
-/* ******************************************************************** */
-/* Security */
-int cw1200_alloc_key(struct cw1200_common *priv);
-void cw1200_free_key(struct cw1200_common *priv, int idx);
-void cw1200_free_keys(struct cw1200_common *priv);
-int cw1200_upload_keys(struct cw1200_common *priv);
-
-/* ******************************************************************** */
-/* Workaround for WFD test case 6.1.10 */
-void cw1200_link_id_reset(struct work_struct *work);
-
-#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
-
-int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
-int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
-void cw1200_link_id_work(struct work_struct *work);
-void cw1200_link_id_gc_work(struct work_struct *work);
-
-
-#endif /* CW1200_TXRX_H */
+++ /dev/null
-/*
- * WSM host interface (HI) implementation for
- * ST-Ericsson CW1200 mac80211 drivers.
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/skbuff.h>
-#include <linux/wait.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/random.h>
-
-#include "cw1200.h"
-#include "wsm.h"
-#include "bh.h"
-#include "sta.h"
-#include "debug.h"
-
-#define WSM_CMD_TIMEOUT (2 * HZ) /* With respect to interrupt loss */
-#define WSM_CMD_START_TIMEOUT (7 * HZ)
-#define WSM_CMD_RESET_TIMEOUT (3 * HZ) /* 2 sec. timeout was observed. */
-#define WSM_CMD_MAX_TIMEOUT (3 * HZ)
-
-#define WSM_SKIP(buf, size) \
- do { \
- if ((buf)->data + size > (buf)->end) \
- goto underflow; \
- (buf)->data += size; \
- } while (0)
-
-#define WSM_GET(buf, ptr, size) \
- do { \
- if ((buf)->data + size > (buf)->end) \
- goto underflow; \
- memcpy(ptr, (buf)->data, size); \
- (buf)->data += size; \
- } while (0)
-
-#define __WSM_GET(buf, type, type2, cvt) \
- ({ \
- type val; \
- if ((buf)->data + sizeof(type) > (buf)->end) \
- goto underflow; \
- val = cvt(*(type2 *)(buf)->data); \
- (buf)->data += sizeof(type); \
- val; \
- })
-
-#define WSM_GET8(buf) __WSM_GET(buf, u8, u8, (u8))
-#define WSM_GET16(buf) __WSM_GET(buf, u16, __le16, __le16_to_cpu)
-#define WSM_GET32(buf) __WSM_GET(buf, u32, __le32, __le32_to_cpu)
-
-#define WSM_PUT(buf, ptr, size) \
- do { \
- if ((buf)->data + size > (buf)->end) \
- if (wsm_buf_reserve((buf), size)) \
- goto nomem; \
- memcpy((buf)->data, ptr, size); \
- (buf)->data += size; \
- } while (0)
-
-#define __WSM_PUT(buf, val, type, type2, cvt) \
- do { \
- if ((buf)->data + sizeof(type) > (buf)->end) \
- if (wsm_buf_reserve((buf), sizeof(type))) \
- goto nomem; \
- *(type2 *)(buf)->data = cvt(val); \
- (buf)->data += sizeof(type); \
- } while (0)
-
-#define WSM_PUT8(buf, val) __WSM_PUT(buf, val, u8, u8, (u8))
-#define WSM_PUT16(buf, val) __WSM_PUT(buf, val, u16, __le16, __cpu_to_le16)
-#define WSM_PUT32(buf, val) __WSM_PUT(buf, val, u32, __le32, __cpu_to_le32)
-
-static void wsm_buf_reset(struct wsm_buf *buf);
-static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size);
-
-static int wsm_cmd_send(struct cw1200_common *priv,
- struct wsm_buf *buf,
- void *arg, u16 cmd, long tmo);
-
-#define wsm_cmd_lock(__priv) mutex_lock(&((__priv)->wsm_cmd_mux))
-#define wsm_cmd_unlock(__priv) mutex_unlock(&((__priv)->wsm_cmd_mux))
-
-/* ******************************************************************** */
-/* WSM API implementation */
-
-static int wsm_generic_confirm(struct cw1200_common *priv,
- void *arg,
- struct wsm_buf *buf)
-{
- u32 status = WSM_GET32(buf);
- if (status != WSM_STATUS_SUCCESS)
- return -EINVAL;
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-int wsm_configuration(struct cw1200_common *priv, struct wsm_configuration *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT32(buf, arg->dot11MaxTransmitMsduLifeTime);
- WSM_PUT32(buf, arg->dot11MaxReceiveLifeTime);
- WSM_PUT32(buf, arg->dot11RtsThreshold);
-
- /* DPD block. */
- WSM_PUT16(buf, arg->dpdData_size + 12);
- WSM_PUT16(buf, 1); /* DPD version */
- WSM_PUT(buf, arg->dot11StationId, ETH_ALEN);
- WSM_PUT16(buf, 5); /* DPD flags */
- WSM_PUT(buf, arg->dpdData, arg->dpdData_size);
-
- ret = wsm_cmd_send(priv, buf, arg,
- WSM_CONFIGURATION_REQ_ID, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-static int wsm_configuration_confirm(struct cw1200_common *priv,
- struct wsm_configuration *arg,
- struct wsm_buf *buf)
-{
- int i;
- int status;
-
- status = WSM_GET32(buf);
- if (WARN_ON(status != WSM_STATUS_SUCCESS))
- return -EINVAL;
-
- WSM_GET(buf, arg->dot11StationId, ETH_ALEN);
- arg->dot11FrequencyBandsSupported = WSM_GET8(buf);
- WSM_SKIP(buf, 1);
- arg->supportedRateMask = WSM_GET32(buf);
- for (i = 0; i < 2; ++i) {
- arg->txPowerRange[i].min_power_level = WSM_GET32(buf);
- arg->txPowerRange[i].max_power_level = WSM_GET32(buf);
- arg->txPowerRange[i].stepping = WSM_GET32(buf);
- }
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-/* ******************************************************************** */
-
-int wsm_reset(struct cw1200_common *priv, const struct wsm_reset *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- u16 cmd = WSM_RESET_REQ_ID | WSM_TX_LINK_ID(arg->link_id);
-
- wsm_cmd_lock(priv);
-
- WSM_PUT32(buf, arg->reset_statistics ? 0 : 1);
- ret = wsm_cmd_send(priv, buf, NULL, cmd, WSM_CMD_RESET_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-struct wsm_mib {
- u16 mib_id;
- void *buf;
- size_t buf_size;
-};
-
-int wsm_read_mib(struct cw1200_common *priv, u16 mib_id, void *_buf,
- size_t buf_size)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- struct wsm_mib mib_buf = {
- .mib_id = mib_id,
- .buf = _buf,
- .buf_size = buf_size,
- };
- wsm_cmd_lock(priv);
-
- WSM_PUT16(buf, mib_id);
- WSM_PUT16(buf, 0);
-
- ret = wsm_cmd_send(priv, buf, &mib_buf,
- WSM_READ_MIB_REQ_ID, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-static int wsm_read_mib_confirm(struct cw1200_common *priv,
- struct wsm_mib *arg,
- struct wsm_buf *buf)
-{
- u16 size;
- if (WARN_ON(WSM_GET32(buf) != WSM_STATUS_SUCCESS))
- return -EINVAL;
-
- if (WARN_ON(WSM_GET16(buf) != arg->mib_id))
- return -EINVAL;
-
- size = WSM_GET16(buf);
- if (size > arg->buf_size)
- size = arg->buf_size;
-
- WSM_GET(buf, arg->buf, size);
- arg->buf_size = size;
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-/* ******************************************************************** */
-
-int wsm_write_mib(struct cw1200_common *priv, u16 mib_id, void *_buf,
- size_t buf_size)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- struct wsm_mib mib_buf = {
- .mib_id = mib_id,
- .buf = _buf,
- .buf_size = buf_size,
- };
-
- wsm_cmd_lock(priv);
-
- WSM_PUT16(buf, mib_id);
- WSM_PUT16(buf, buf_size);
- WSM_PUT(buf, _buf, buf_size);
-
- ret = wsm_cmd_send(priv, buf, &mib_buf,
- WSM_WRITE_MIB_REQ_ID, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-static int wsm_write_mib_confirm(struct cw1200_common *priv,
- struct wsm_mib *arg,
- struct wsm_buf *buf)
-{
- int ret;
-
- ret = wsm_generic_confirm(priv, arg, buf);
- if (ret)
- return ret;
-
- if (arg->mib_id == WSM_MIB_ID_OPERATIONAL_POWER_MODE) {
- /* OperationalMode: update PM status. */
- const char *p = arg->buf;
- cw1200_enable_powersave(priv, (p[0] & 0x0F) ? true : false);
- }
- return 0;
-}
-
-/* ******************************************************************** */
-
-int wsm_scan(struct cw1200_common *priv, const struct wsm_scan *arg)
-{
- int i;
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- if (arg->num_channels > 48)
- return -EINVAL;
-
- if (arg->num_ssids > 2)
- return -EINVAL;
-
- if (arg->band > 1)
- return -EINVAL;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, arg->band);
- WSM_PUT8(buf, arg->type);
- WSM_PUT8(buf, arg->flags);
- WSM_PUT8(buf, arg->max_tx_rate);
- WSM_PUT32(buf, arg->auto_scan_interval);
- WSM_PUT8(buf, arg->num_probes);
- WSM_PUT8(buf, arg->num_channels);
- WSM_PUT8(buf, arg->num_ssids);
- WSM_PUT8(buf, arg->probe_delay);
-
- for (i = 0; i < arg->num_channels; ++i) {
- WSM_PUT16(buf, arg->ch[i].number);
- WSM_PUT16(buf, 0);
- WSM_PUT32(buf, arg->ch[i].min_chan_time);
- WSM_PUT32(buf, arg->ch[i].max_chan_time);
- WSM_PUT32(buf, 0);
- }
-
- for (i = 0; i < arg->num_ssids; ++i) {
- WSM_PUT32(buf, arg->ssids[i].length);
- WSM_PUT(buf, &arg->ssids[i].ssid[0],
- sizeof(arg->ssids[i].ssid));
- }
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_START_SCAN_REQ_ID, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_stop_scan(struct cw1200_common *priv)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- wsm_cmd_lock(priv);
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_STOP_SCAN_REQ_ID, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-}
-
-
-static int wsm_tx_confirm(struct cw1200_common *priv,
- struct wsm_buf *buf,
- int link_id)
-{
- struct wsm_tx_confirm tx_confirm;
-
- tx_confirm.packet_id = WSM_GET32(buf);
- tx_confirm.status = WSM_GET32(buf);
- tx_confirm.tx_rate = WSM_GET8(buf);
- tx_confirm.ack_failures = WSM_GET8(buf);
- tx_confirm.flags = WSM_GET16(buf);
- tx_confirm.media_delay = WSM_GET32(buf);
- tx_confirm.tx_queue_delay = WSM_GET32(buf);
-
- cw1200_tx_confirm_cb(priv, link_id, &tx_confirm);
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-static int wsm_multi_tx_confirm(struct cw1200_common *priv,
- struct wsm_buf *buf, int link_id)
-{
- int ret;
- int count;
- int i;
-
- count = WSM_GET32(buf);
- if (WARN_ON(count <= 0))
- return -EINVAL;
-
- if (count > 1) {
- /* We already released one buffer, now for the rest */
- ret = wsm_release_tx_buffer(priv, count - 1);
- if (ret < 0)
- return ret;
- else if (ret > 0)
- cw1200_bh_wakeup(priv);
- }
-
- cw1200_debug_txed_multi(priv, count);
- for (i = 0; i < count; ++i) {
- ret = wsm_tx_confirm(priv, buf, link_id);
- if (ret)
- return ret;
- }
- return ret;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-/* ******************************************************************** */
-
-static int wsm_join_confirm(struct cw1200_common *priv,
- struct wsm_join_cnf *arg,
- struct wsm_buf *buf)
-{
- arg->status = WSM_GET32(buf);
- if (WARN_ON(arg->status) != WSM_STATUS_SUCCESS)
- return -EINVAL;
-
- arg->min_power_level = WSM_GET32(buf);
- arg->max_power_level = WSM_GET32(buf);
-
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-int wsm_join(struct cw1200_common *priv, struct wsm_join *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- struct wsm_join_cnf resp;
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, arg->mode);
- WSM_PUT8(buf, arg->band);
- WSM_PUT16(buf, arg->channel_number);
- WSM_PUT(buf, &arg->bssid[0], sizeof(arg->bssid));
- WSM_PUT16(buf, arg->atim_window);
- WSM_PUT8(buf, arg->preamble_type);
- WSM_PUT8(buf, arg->probe_for_join);
- WSM_PUT8(buf, arg->dtim_period);
- WSM_PUT8(buf, arg->flags);
- WSM_PUT32(buf, arg->ssid_len);
- WSM_PUT(buf, &arg->ssid[0], sizeof(arg->ssid));
- WSM_PUT32(buf, arg->beacon_interval);
- WSM_PUT32(buf, arg->basic_rate_set);
-
- priv->tx_burst_idx = -1;
- ret = wsm_cmd_send(priv, buf, &resp,
- WSM_JOIN_REQ_ID, WSM_CMD_TIMEOUT);
- /* TODO: Update state based on resp.min|max_power_level */
-
- priv->join_complete_status = resp.status;
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_set_bss_params(struct cw1200_common *priv,
- const struct wsm_set_bss_params *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, (arg->reset_beacon_loss ? 0x1 : 0));
- WSM_PUT8(buf, arg->beacon_lost_count);
- WSM_PUT16(buf, arg->aid);
- WSM_PUT32(buf, arg->operational_rate_set);
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_SET_BSS_PARAMS_REQ_ID, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_add_key(struct cw1200_common *priv, const struct wsm_add_key *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT(buf, arg, sizeof(*arg));
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_ADD_KEY_REQ_ID, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_remove_key(struct cw1200_common *priv, const struct wsm_remove_key *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, arg->index);
- WSM_PUT8(buf, 0);
- WSM_PUT16(buf, 0);
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_REMOVE_KEY_REQ_ID, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_set_tx_queue_params(struct cw1200_common *priv,
- const struct wsm_set_tx_queue_params *arg, u8 id)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- u8 queue_id_to_wmm_aci[] = {3, 2, 0, 1};
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, queue_id_to_wmm_aci[id]);
- WSM_PUT8(buf, 0);
- WSM_PUT8(buf, arg->ackPolicy);
- WSM_PUT8(buf, 0);
- WSM_PUT32(buf, arg->maxTransmitLifetime);
- WSM_PUT16(buf, arg->allowedMediumTime);
- WSM_PUT16(buf, 0);
-
- ret = wsm_cmd_send(priv, buf, NULL, 0x0012, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_set_edca_params(struct cw1200_common *priv,
- const struct wsm_edca_params *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- /* Implemented according to specification. */
-
- WSM_PUT16(buf, arg->params[3].cwmin);
- WSM_PUT16(buf, arg->params[2].cwmin);
- WSM_PUT16(buf, arg->params[1].cwmin);
- WSM_PUT16(buf, arg->params[0].cwmin);
-
- WSM_PUT16(buf, arg->params[3].cwmax);
- WSM_PUT16(buf, arg->params[2].cwmax);
- WSM_PUT16(buf, arg->params[1].cwmax);
- WSM_PUT16(buf, arg->params[0].cwmax);
-
- WSM_PUT8(buf, arg->params[3].aifns);
- WSM_PUT8(buf, arg->params[2].aifns);
- WSM_PUT8(buf, arg->params[1].aifns);
- WSM_PUT8(buf, arg->params[0].aifns);
-
- WSM_PUT16(buf, arg->params[3].txop_limit);
- WSM_PUT16(buf, arg->params[2].txop_limit);
- WSM_PUT16(buf, arg->params[1].txop_limit);
- WSM_PUT16(buf, arg->params[0].txop_limit);
-
- WSM_PUT32(buf, arg->params[3].max_rx_lifetime);
- WSM_PUT32(buf, arg->params[2].max_rx_lifetime);
- WSM_PUT32(buf, arg->params[1].max_rx_lifetime);
- WSM_PUT32(buf, arg->params[0].max_rx_lifetime);
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_EDCA_PARAMS_REQ_ID, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_switch_channel(struct cw1200_common *priv,
- const struct wsm_switch_channel *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, arg->mode);
- WSM_PUT8(buf, arg->switch_count);
- WSM_PUT16(buf, arg->channel_number);
-
- priv->channel_switch_in_progress = 1;
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_SWITCH_CHANNEL_REQ_ID, WSM_CMD_TIMEOUT);
- if (ret)
- priv->channel_switch_in_progress = 0;
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- priv->ps_mode_switch_in_progress = 1;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, arg->mode);
- WSM_PUT8(buf, arg->fast_psm_idle_period);
- WSM_PUT8(buf, arg->ap_psm_change_period);
- WSM_PUT8(buf, arg->min_auto_pspoll_period);
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_SET_PM_REQ_ID, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_start(struct cw1200_common *priv, const struct wsm_start *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT8(buf, arg->mode);
- WSM_PUT8(buf, arg->band);
- WSM_PUT16(buf, arg->channel_number);
- WSM_PUT32(buf, arg->ct_window);
- WSM_PUT32(buf, arg->beacon_interval);
- WSM_PUT8(buf, arg->dtim_period);
- WSM_PUT8(buf, arg->preamble);
- WSM_PUT8(buf, arg->probe_delay);
- WSM_PUT8(buf, arg->ssid_len);
- WSM_PUT(buf, arg->ssid, sizeof(arg->ssid));
- WSM_PUT32(buf, arg->basic_rate_set);
-
- priv->tx_burst_idx = -1;
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_START_REQ_ID, WSM_CMD_START_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_beacon_transmit(struct cw1200_common *priv,
- const struct wsm_beacon_transmit *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT32(buf, arg->enable_beaconing ? 1 : 0);
-
- ret = wsm_cmd_send(priv, buf, NULL,
- WSM_BEACON_TRANSMIT_REQ_ID, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_start_find(struct cw1200_common *priv)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
- ret = wsm_cmd_send(priv, buf, NULL, 0x0019, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-}
-
-/* ******************************************************************** */
-
-int wsm_stop_find(struct cw1200_common *priv)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
- ret = wsm_cmd_send(priv, buf, NULL, 0x001A, WSM_CMD_TIMEOUT);
- wsm_cmd_unlock(priv);
- return ret;
-}
-
-/* ******************************************************************** */
-
-int wsm_map_link(struct cw1200_common *priv, const struct wsm_map_link *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
- u16 cmd = 0x001C | WSM_TX_LINK_ID(arg->link_id);
-
- wsm_cmd_lock(priv);
-
- WSM_PUT(buf, &arg->mac_addr[0], sizeof(arg->mac_addr));
- WSM_PUT16(buf, 0);
-
- ret = wsm_cmd_send(priv, buf, NULL, cmd, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-
-int wsm_update_ie(struct cw1200_common *priv,
- const struct wsm_update_ie *arg)
-{
- int ret;
- struct wsm_buf *buf = &priv->wsm_cmd_buf;
-
- wsm_cmd_lock(priv);
-
- WSM_PUT16(buf, arg->what);
- WSM_PUT16(buf, arg->count);
- WSM_PUT(buf, arg->ies, arg->length);
-
- ret = wsm_cmd_send(priv, buf, NULL, 0x001B, WSM_CMD_TIMEOUT);
-
- wsm_cmd_unlock(priv);
- return ret;
-
-nomem:
- wsm_cmd_unlock(priv);
- return -ENOMEM;
-}
-
-/* ******************************************************************** */
-int wsm_set_probe_responder(struct cw1200_common *priv, bool enable)
-{
- priv->rx_filter.probeResponder = enable;
- return wsm_set_rx_filter(priv, &priv->rx_filter);
-}
-
-/* ******************************************************************** */
-/* WSM indication events implementation */
-const char * const cw1200_fw_types[] = {
- "ETF",
- "WFM",
- "WSM",
- "HI test",
- "Platform test"
-};
-
-static int wsm_startup_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- priv->wsm_caps.input_buffers = WSM_GET16(buf);
- priv->wsm_caps.input_buffer_size = WSM_GET16(buf);
- priv->wsm_caps.hw_id = WSM_GET16(buf);
- priv->wsm_caps.hw_subid = WSM_GET16(buf);
- priv->wsm_caps.status = WSM_GET16(buf);
- priv->wsm_caps.fw_cap = WSM_GET16(buf);
- priv->wsm_caps.fw_type = WSM_GET16(buf);
- priv->wsm_caps.fw_api = WSM_GET16(buf);
- priv->wsm_caps.fw_build = WSM_GET16(buf);
- priv->wsm_caps.fw_ver = WSM_GET16(buf);
- WSM_GET(buf, priv->wsm_caps.fw_label, sizeof(priv->wsm_caps.fw_label));
- priv->wsm_caps.fw_label[sizeof(priv->wsm_caps.fw_label) - 1] = 0; /* Do not trust FW too much... */
-
- if (WARN_ON(priv->wsm_caps.status))
- return -EINVAL;
-
- if (WARN_ON(priv->wsm_caps.fw_type > 4))
- return -EINVAL;
-
- pr_info("CW1200 WSM init done.\n"
- " Input buffers: %d x %d bytes\n"
- " Hardware: %d.%d\n"
- " %s firmware [%s], ver: %d, build: %d,"
- " api: %d, cap: 0x%.4X\n",
- priv->wsm_caps.input_buffers,
- priv->wsm_caps.input_buffer_size,
- priv->wsm_caps.hw_id, priv->wsm_caps.hw_subid,
- cw1200_fw_types[priv->wsm_caps.fw_type],
- priv->wsm_caps.fw_label, priv->wsm_caps.fw_ver,
- priv->wsm_caps.fw_build,
- priv->wsm_caps.fw_api, priv->wsm_caps.fw_cap);
-
- /* Disable unsupported frequency bands */
- if (!(priv->wsm_caps.fw_cap & 0x1))
- priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
- if (!(priv->wsm_caps.fw_cap & 0x2))
- priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
-
- priv->firmware_ready = 1;
- wake_up(&priv->wsm_startup_done);
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-static int wsm_receive_indication(struct cw1200_common *priv,
- int link_id,
- struct wsm_buf *buf,
- struct sk_buff **skb_p)
-{
- struct wsm_rx rx;
- struct ieee80211_hdr *hdr;
- size_t hdr_len;
- __le16 fctl;
-
- rx.status = WSM_GET32(buf);
- rx.channel_number = WSM_GET16(buf);
- rx.rx_rate = WSM_GET8(buf);
- rx.rcpi_rssi = WSM_GET8(buf);
- rx.flags = WSM_GET32(buf);
-
- /* FW Workaround: Drop probe resp or
- beacon when RSSI is 0
- */
- hdr = (struct ieee80211_hdr *)(*skb_p)->data;
-
- if (!rx.rcpi_rssi &&
- (ieee80211_is_probe_resp(hdr->frame_control) ||
- ieee80211_is_beacon(hdr->frame_control)))
- return 0;
-
- /* If no RSSI subscription has been made,
- * convert RCPI to RSSI here
- */
- if (!priv->cqm_use_rssi)
- rx.rcpi_rssi = rx.rcpi_rssi / 2 - 110;
-
- fctl = *(__le16 *)buf->data;
- hdr_len = buf->data - buf->begin;
- skb_pull(*skb_p, hdr_len);
- if (!rx.status && ieee80211_is_deauth(fctl)) {
- if (priv->join_status == CW1200_JOIN_STATUS_STA) {
- /* Shedule unjoin work */
- pr_debug("[WSM] Issue unjoin command (RX).\n");
- wsm_lock_tx_async(priv);
- if (queue_work(priv->workqueue,
- &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- }
- }
- cw1200_rx_cb(priv, &rx, link_id, skb_p);
- if (*skb_p)
- skb_push(*skb_p, hdr_len);
-
- return 0;
-
-underflow:
- return -EINVAL;
-}
-
-static int wsm_event_indication(struct cw1200_common *priv, struct wsm_buf *buf)
-{
- int first;
- struct cw1200_wsm_event *event;
-
- if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
- /* STA is stopped. */
- return 0;
- }
-
- event = kzalloc(sizeof(struct cw1200_wsm_event), GFP_KERNEL);
- if (!event)
- return -ENOMEM;
-
- event->evt.id = WSM_GET32(buf);
- event->evt.data = WSM_GET32(buf);
-
- pr_debug("[WSM] Event: %d(%d)\n",
- event->evt.id, event->evt.data);
-
- spin_lock(&priv->event_queue_lock);
- first = list_empty(&priv->event_queue);
- list_add_tail(&event->link, &priv->event_queue);
- spin_unlock(&priv->event_queue_lock);
-
- if (first)
- queue_work(priv->workqueue, &priv->event_handler);
-
- return 0;
-
-underflow:
- kfree(event);
- return -EINVAL;
-}
-
-static int wsm_channel_switch_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- WARN_ON(WSM_GET32(buf));
-
- priv->channel_switch_in_progress = 0;
- wake_up(&priv->channel_switch_done);
-
- wsm_unlock_tx(priv);
-
- return 0;
-
-underflow:
- return -EINVAL;
-}
-
-static int wsm_set_pm_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- /* TODO: Check buf (struct wsm_set_pm_complete) for validity */
- if (priv->ps_mode_switch_in_progress) {
- priv->ps_mode_switch_in_progress = 0;
- wake_up(&priv->ps_mode_switch_done);
- }
- return 0;
-}
-
-static int wsm_scan_started(struct cw1200_common *priv, void *arg,
- struct wsm_buf *buf)
-{
- u32 status = WSM_GET32(buf);
- if (status != WSM_STATUS_SUCCESS) {
- cw1200_scan_failed_cb(priv);
- return -EINVAL;
- }
- return 0;
-
-underflow:
- WARN_ON(1);
- return -EINVAL;
-}
-
-static int wsm_scan_complete_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- struct wsm_scan_complete arg;
- arg.status = WSM_GET32(buf);
- arg.psm = WSM_GET8(buf);
- arg.num_channels = WSM_GET8(buf);
- cw1200_scan_complete_cb(priv, &arg);
-
- return 0;
-
-underflow:
- return -EINVAL;
-}
-
-static int wsm_join_complete_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- struct wsm_join_complete arg;
- arg.status = WSM_GET32(buf);
- pr_debug("[WSM] Join complete indication, status: %d\n", arg.status);
- cw1200_join_complete_cb(priv, &arg);
-
- return 0;
-
-underflow:
- return -EINVAL;
-}
-
-static int wsm_find_complete_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- pr_warn("Implement find_complete_indication\n");
- return 0;
-}
-
-static int wsm_ba_timeout_indication(struct cw1200_common *priv,
- struct wsm_buf *buf)
-{
- u32 dummy;
- u8 tid;
- u8 dummy2;
- u8 addr[ETH_ALEN];
-
- dummy = WSM_GET32(buf);
- tid = WSM_GET8(buf);
- dummy2 = WSM_GET8(buf);
- WSM_GET(buf, addr, ETH_ALEN);
-
- pr_info("BlockACK timeout, tid %d, addr %pM\n",
- tid, addr);
-
- return 0;
-
-underflow:
- return -EINVAL;
-}
-
-static int wsm_suspend_resume_indication(struct cw1200_common *priv,
- int link_id, struct wsm_buf *buf)
-{
- u32 flags;
- struct wsm_suspend_resume arg;
-
- flags = WSM_GET32(buf);
- arg.link_id = link_id;
- arg.stop = !(flags & 1);
- arg.multicast = !!(flags & 8);
- arg.queue = (flags >> 1) & 3;
-
- cw1200_suspend_resume(priv, &arg);
-
- return 0;
-
-underflow:
- return -EINVAL;
-}
-
-
-/* ******************************************************************** */
-/* WSM TX */
-
-static int wsm_cmd_send(struct cw1200_common *priv,
- struct wsm_buf *buf,
- void *arg, u16 cmd, long tmo)
-{
- size_t buf_len = buf->data - buf->begin;
- int ret;
-
- /* Don't bother if we're dead. */
- if (priv->bh_error) {
- ret = 0;
- goto done;
- }
-
- /* Block until the cmd buffer is completed. Tortuous. */
- spin_lock(&priv->wsm_cmd.lock);
- while (!priv->wsm_cmd.done) {
- spin_unlock(&priv->wsm_cmd.lock);
- spin_lock(&priv->wsm_cmd.lock);
- }
- priv->wsm_cmd.done = 0;
- spin_unlock(&priv->wsm_cmd.lock);
-
- if (cmd == WSM_WRITE_MIB_REQ_ID ||
- cmd == WSM_READ_MIB_REQ_ID)
- pr_debug("[WSM] >>> 0x%.4X [MIB: 0x%.4X] (%zu)\n",
- cmd, __le16_to_cpu(((__le16 *)buf->begin)[2]),
- buf_len);
- else
- pr_debug("[WSM] >>> 0x%.4X (%zu)\n", cmd, buf_len);
-
- /* Due to buggy SPI on CW1200, we need to
- * pad the message by a few bytes to ensure
- * that it's completely received.
- */
- buf_len += 4;
-
- /* Fill HI message header */
- /* BH will add sequence number */
- ((__le16 *)buf->begin)[0] = __cpu_to_le16(buf_len);
- ((__le16 *)buf->begin)[1] = __cpu_to_le16(cmd);
-
- spin_lock(&priv->wsm_cmd.lock);
- BUG_ON(priv->wsm_cmd.ptr);
- priv->wsm_cmd.ptr = buf->begin;
- priv->wsm_cmd.len = buf_len;
- priv->wsm_cmd.arg = arg;
- priv->wsm_cmd.cmd = cmd;
- spin_unlock(&priv->wsm_cmd.lock);
-
- cw1200_bh_wakeup(priv);
-
- /* Wait for command completion */
- ret = wait_event_timeout(priv->wsm_cmd_wq,
- priv->wsm_cmd.done, tmo);
-
- if (!ret && !priv->wsm_cmd.done) {
- spin_lock(&priv->wsm_cmd.lock);
- priv->wsm_cmd.done = 1;
- priv->wsm_cmd.ptr = NULL;
- spin_unlock(&priv->wsm_cmd.lock);
- if (priv->bh_error) {
- /* Return ok to help system cleanup */
- ret = 0;
- } else {
- pr_err("CMD req (0x%04x) stuck in firmware, killing BH\n", priv->wsm_cmd.cmd);
- print_hex_dump_bytes("REQDUMP: ", DUMP_PREFIX_NONE,
- buf->begin, buf_len);
- pr_err("Outstanding outgoing frames: %d\n", priv->hw_bufs_used);
-
- /* Kill BH thread to report the error to the top layer. */
- atomic_add(1, &priv->bh_term);
- wake_up(&priv->bh_wq);
- ret = -ETIMEDOUT;
- }
- } else {
- spin_lock(&priv->wsm_cmd.lock);
- BUG_ON(!priv->wsm_cmd.done);
- ret = priv->wsm_cmd.ret;
- spin_unlock(&priv->wsm_cmd.lock);
- }
-done:
- wsm_buf_reset(buf);
- return ret;
-}
-
-/* ******************************************************************** */
-/* WSM TX port control */
-
-void wsm_lock_tx(struct cw1200_common *priv)
-{
- wsm_cmd_lock(priv);
- if (atomic_add_return(1, &priv->tx_lock) == 1) {
- if (wsm_flush_tx(priv))
- pr_debug("[WSM] TX is locked.\n");
- }
- wsm_cmd_unlock(priv);
-}
-
-void wsm_lock_tx_async(struct cw1200_common *priv)
-{
- if (atomic_add_return(1, &priv->tx_lock) == 1)
- pr_debug("[WSM] TX is locked (async).\n");
-}
-
-bool wsm_flush_tx(struct cw1200_common *priv)
-{
- unsigned long timestamp = jiffies;
- bool pending = false;
- long timeout;
- int i;
-
- /* Flush must be called with TX lock held. */
- BUG_ON(!atomic_read(&priv->tx_lock));
-
- /* First check if we really need to do something.
- * It is safe to use unprotected access, as hw_bufs_used
- * can only decrements.
- */
- if (!priv->hw_bufs_used)
- return true;
-
- if (priv->bh_error) {
- /* In case of failure do not wait for magic. */
- pr_err("[WSM] Fatal error occurred, will not flush TX.\n");
- return false;
- } else {
- /* Get a timestamp of "oldest" frame */
- for (i = 0; i < 4; ++i)
- pending |= cw1200_queue_get_xmit_timestamp(
- &priv->tx_queue[i],
- ×tamp, 0xffffffff);
- /* If there's nothing pending, we're good */
- if (!pending)
- return true;
-
- timeout = timestamp + WSM_CMD_LAST_CHANCE_TIMEOUT - jiffies;
- if (timeout < 0 || wait_event_timeout(priv->bh_evt_wq,
- !priv->hw_bufs_used,
- timeout) <= 0) {
- /* Hmmm... Not good. Frame had stuck in firmware. */
- priv->bh_error = 1;
- wiphy_err(priv->hw->wiphy, "[WSM] TX Frames (%d) stuck in firmware, killing BH\n", priv->hw_bufs_used);
- wake_up(&priv->bh_wq);
- return false;
- }
-
- /* Ok, everything is flushed. */
- return true;
- }
-}
-
-void wsm_unlock_tx(struct cw1200_common *priv)
-{
- int tx_lock;
- tx_lock = atomic_sub_return(1, &priv->tx_lock);
- BUG_ON(tx_lock < 0);
-
- if (tx_lock == 0) {
- if (!priv->bh_error)
- cw1200_bh_wakeup(priv);
- pr_debug("[WSM] TX is unlocked.\n");
- }
-}
-
-/* ******************************************************************** */
-/* WSM RX */
-
-int wsm_handle_exception(struct cw1200_common *priv, u8 *data, size_t len)
-{
- struct wsm_buf buf;
- u32 reason;
- u32 reg[18];
- char fname[48];
- unsigned int i;
-
- static const char * const reason_str[] = {
- "undefined instruction",
- "prefetch abort",
- "data abort",
- "unknown error",
- };
-
- buf.begin = buf.data = data;
- buf.end = &buf.begin[len];
-
- reason = WSM_GET32(&buf);
- for (i = 0; i < ARRAY_SIZE(reg); ++i)
- reg[i] = WSM_GET32(&buf);
- WSM_GET(&buf, fname, sizeof(fname));
-
- if (reason < 4)
- wiphy_err(priv->hw->wiphy,
- "Firmware exception: %s.\n",
- reason_str[reason]);
- else
- wiphy_err(priv->hw->wiphy,
- "Firmware assert at %.*s, line %d\n",
- (int) sizeof(fname), fname, reg[1]);
-
- for (i = 0; i < 12; i += 4)
- wiphy_err(priv->hw->wiphy,
- "R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X,\n",
- i + 0, reg[i + 0], i + 1, reg[i + 1],
- i + 2, reg[i + 2], i + 3, reg[i + 3]);
- wiphy_err(priv->hw->wiphy,
- "R12: 0x%.8X, SP: 0x%.8X, LR: 0x%.8X, PC: 0x%.8X,\n",
- reg[i + 0], reg[i + 1], reg[i + 2], reg[i + 3]);
- i += 4;
- wiphy_err(priv->hw->wiphy,
- "CPSR: 0x%.8X, SPSR: 0x%.8X\n",
- reg[i + 0], reg[i + 1]);
-
- print_hex_dump_bytes("R1: ", DUMP_PREFIX_NONE,
- fname, sizeof(fname));
- return 0;
-
-underflow:
- wiphy_err(priv->hw->wiphy, "Firmware exception.\n");
- print_hex_dump_bytes("Exception: ", DUMP_PREFIX_NONE,
- data, len);
- return -EINVAL;
-}
-
-int wsm_handle_rx(struct cw1200_common *priv, u16 id,
- struct wsm_hdr *wsm, struct sk_buff **skb_p)
-{
- int ret = 0;
- struct wsm_buf wsm_buf;
- int link_id = (id >> 6) & 0x0F;
-
- /* Strip link id. */
- id &= ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
-
- wsm_buf.begin = (u8 *)&wsm[0];
- wsm_buf.data = (u8 *)&wsm[1];
- wsm_buf.end = &wsm_buf.begin[__le16_to_cpu(wsm->len)];
-
- pr_debug("[WSM] <<< 0x%.4X (%td)\n", id,
- wsm_buf.end - wsm_buf.begin);
-
- if (id == WSM_TX_CONFIRM_IND_ID) {
- ret = wsm_tx_confirm(priv, &wsm_buf, link_id);
- } else if (id == WSM_MULTI_TX_CONFIRM_ID) {
- ret = wsm_multi_tx_confirm(priv, &wsm_buf, link_id);
- } else if (id & 0x0400) {
- void *wsm_arg;
- u16 wsm_cmd;
-
- /* Do not trust FW too much. Protection against repeated
- * response and race condition removal (see above).
- */
- spin_lock(&priv->wsm_cmd.lock);
- wsm_arg = priv->wsm_cmd.arg;
- wsm_cmd = priv->wsm_cmd.cmd &
- ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
- priv->wsm_cmd.cmd = 0xFFFF;
- spin_unlock(&priv->wsm_cmd.lock);
-
- if (WARN_ON((id & ~0x0400) != wsm_cmd)) {
- /* Note that any non-zero is a fatal retcode. */
- ret = -EINVAL;
- goto out;
- }
-
- /* Note that wsm_arg can be NULL in case of timeout in
- * wsm_cmd_send().
- */
-
- switch (id) {
- case WSM_READ_MIB_RESP_ID:
- if (wsm_arg)
- ret = wsm_read_mib_confirm(priv, wsm_arg,
- &wsm_buf);
- break;
- case WSM_WRITE_MIB_RESP_ID:
- if (wsm_arg)
- ret = wsm_write_mib_confirm(priv, wsm_arg,
- &wsm_buf);
- break;
- case WSM_START_SCAN_RESP_ID:
- if (wsm_arg)
- ret = wsm_scan_started(priv, wsm_arg, &wsm_buf);
- break;
- case WSM_CONFIGURATION_RESP_ID:
- if (wsm_arg)
- ret = wsm_configuration_confirm(priv, wsm_arg,
- &wsm_buf);
- break;
- case WSM_JOIN_RESP_ID:
- if (wsm_arg)
- ret = wsm_join_confirm(priv, wsm_arg, &wsm_buf);
- break;
- case WSM_STOP_SCAN_RESP_ID:
- case WSM_RESET_RESP_ID:
- case WSM_ADD_KEY_RESP_ID:
- case WSM_REMOVE_KEY_RESP_ID:
- case WSM_SET_PM_RESP_ID:
- case WSM_SET_BSS_PARAMS_RESP_ID:
- case 0x0412: /* set_tx_queue_params */
- case WSM_EDCA_PARAMS_RESP_ID:
- case WSM_SWITCH_CHANNEL_RESP_ID:
- case WSM_START_RESP_ID:
- case WSM_BEACON_TRANSMIT_RESP_ID:
- case 0x0419: /* start_find */
- case 0x041A: /* stop_find */
- case 0x041B: /* update_ie */
- case 0x041C: /* map_link */
- WARN_ON(wsm_arg != NULL);
- ret = wsm_generic_confirm(priv, wsm_arg, &wsm_buf);
- if (ret) {
- wiphy_warn(priv->hw->wiphy,
- "wsm_generic_confirm failed for request 0x%04x.\n",
- id & ~0x0400);
-
- /* often 0x407 and 0x410 occur, this means we're dead.. */
- if (priv->join_status >= CW1200_JOIN_STATUS_JOINING) {
- wsm_lock_tx(priv);
- if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- }
- }
- break;
- default:
- wiphy_warn(priv->hw->wiphy,
- "Unrecognized confirmation 0x%04x\n",
- id & ~0x0400);
- }
-
- spin_lock(&priv->wsm_cmd.lock);
- priv->wsm_cmd.ret = ret;
- priv->wsm_cmd.done = 1;
- spin_unlock(&priv->wsm_cmd.lock);
-
- ret = 0; /* Error response from device should ne stop BH. */
-
- wake_up(&priv->wsm_cmd_wq);
- } else if (id & 0x0800) {
- switch (id) {
- case WSM_STARTUP_IND_ID:
- ret = wsm_startup_indication(priv, &wsm_buf);
- break;
- case WSM_RECEIVE_IND_ID:
- ret = wsm_receive_indication(priv, link_id,
- &wsm_buf, skb_p);
- break;
- case 0x0805:
- ret = wsm_event_indication(priv, &wsm_buf);
- break;
- case WSM_SCAN_COMPLETE_IND_ID:
- ret = wsm_scan_complete_indication(priv, &wsm_buf);
- break;
- case 0x0808:
- ret = wsm_ba_timeout_indication(priv, &wsm_buf);
- break;
- case 0x0809:
- ret = wsm_set_pm_indication(priv, &wsm_buf);
- break;
- case 0x080A:
- ret = wsm_channel_switch_indication(priv, &wsm_buf);
- break;
- case 0x080B:
- ret = wsm_find_complete_indication(priv, &wsm_buf);
- break;
- case 0x080C:
- ret = wsm_suspend_resume_indication(priv,
- link_id, &wsm_buf);
- break;
- case 0x080F:
- ret = wsm_join_complete_indication(priv, &wsm_buf);
- break;
- default:
- pr_warn("Unrecognised WSM ID %04x\n", id);
- }
- } else {
- WARN_ON(1);
- ret = -EINVAL;
- }
-out:
- return ret;
-}
-
-static bool wsm_handle_tx_data(struct cw1200_common *priv,
- struct wsm_tx *wsm,
- const struct ieee80211_tx_info *tx_info,
- const struct cw1200_txpriv *txpriv,
- struct cw1200_queue *queue)
-{
- bool handled = false;
- const struct ieee80211_hdr *frame =
- (struct ieee80211_hdr *)&((u8 *)wsm)[txpriv->offset];
- __le16 fctl = frame->frame_control;
- enum {
- do_probe,
- do_drop,
- do_wep,
- do_tx,
- } action = do_tx;
-
- switch (priv->mode) {
- case NL80211_IFTYPE_STATION:
- if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
- action = do_tx;
- else if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA)
- action = do_drop;
- break;
- case NL80211_IFTYPE_AP:
- if (!priv->join_status) {
- action = do_drop;
- } else if (!(BIT(txpriv->raw_link_id) &
- (BIT(0) | priv->link_id_map))) {
- wiphy_warn(priv->hw->wiphy,
- "A frame with expired link id is dropped.\n");
- action = do_drop;
- }
- if (cw1200_queue_get_generation(wsm->packet_id) >
- CW1200_MAX_REQUEUE_ATTEMPTS) {
- /* HACK!!! WSM324 firmware has tendency to requeue
- * multicast frames in a loop, causing performance
- * drop and high power consumption of the driver.
- * In this situation it is better just to drop
- * the problematic frame.
- */
- wiphy_warn(priv->hw->wiphy,
- "Too many attempts to requeue a frame; dropped.\n");
- action = do_drop;
- }
- break;
- case NL80211_IFTYPE_ADHOC:
- if (priv->join_status != CW1200_JOIN_STATUS_IBSS)
- action = do_drop;
- break;
- case NL80211_IFTYPE_MESH_POINT:
- action = do_tx; /* TODO: Test me! */
- break;
- case NL80211_IFTYPE_MONITOR:
- default:
- action = do_drop;
- break;
- }
-
- if (action == do_tx) {
- if (ieee80211_is_nullfunc(fctl)) {
- spin_lock(&priv->bss_loss_lock);
- if (priv->bss_loss_state) {
- priv->bss_loss_confirm_id = wsm->packet_id;
- wsm->queue_id = WSM_QUEUE_VOICE;
- }
- spin_unlock(&priv->bss_loss_lock);
- } else if (ieee80211_is_probe_req(fctl)) {
- action = do_probe;
- } else if (ieee80211_is_deauth(fctl) &&
- priv->mode != NL80211_IFTYPE_AP) {
- pr_debug("[WSM] Issue unjoin command due to tx deauth.\n");
- wsm_lock_tx_async(priv);
- if (queue_work(priv->workqueue,
- &priv->unjoin_work) <= 0)
- wsm_unlock_tx(priv);
- } else if (ieee80211_has_protected(fctl) &&
- tx_info->control.hw_key &&
- tx_info->control.hw_key->keyidx != priv->wep_default_key_id &&
- (tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
- tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_WEP104)) {
- action = do_wep;
- }
- }
-
- switch (action) {
- case do_probe:
- /* An interesting FW "feature". Device filters probe responses.
- * The easiest way to get it back is to convert
- * probe request into WSM start_scan command.
- */
- pr_debug("[WSM] Convert probe request to scan.\n");
- wsm_lock_tx_async(priv);
- priv->pending_frame_id = wsm->packet_id;
- if (queue_delayed_work(priv->workqueue,
- &priv->scan.probe_work, 0) <= 0)
- wsm_unlock_tx(priv);
- handled = true;
- break;
- case do_drop:
- pr_debug("[WSM] Drop frame (0x%.4X).\n", fctl);
- BUG_ON(cw1200_queue_remove(queue, wsm->packet_id));
- handled = true;
- break;
- case do_wep:
- pr_debug("[WSM] Issue set_default_wep_key.\n");
- wsm_lock_tx_async(priv);
- priv->wep_default_key_id = tx_info->control.hw_key->keyidx;
- priv->pending_frame_id = wsm->packet_id;
- if (queue_work(priv->workqueue, &priv->wep_key_work) <= 0)
- wsm_unlock_tx(priv);
- handled = true;
- break;
- case do_tx:
- pr_debug("[WSM] Transmit frame.\n");
- break;
- default:
- /* Do nothing */
- break;
- }
- return handled;
-}
-
-static int cw1200_get_prio_queue(struct cw1200_common *priv,
- u32 link_id_map, int *total)
-{
- static const int urgent = BIT(CW1200_LINK_ID_AFTER_DTIM) |
- BIT(CW1200_LINK_ID_UAPSD);
- struct wsm_edca_queue_params *edca;
- unsigned score, best = -1;
- int winner = -1;
- int queued;
- int i;
-
- /* search for a winner using edca params */
- for (i = 0; i < 4; ++i) {
- queued = cw1200_queue_get_num_queued(&priv->tx_queue[i],
- link_id_map);
- if (!queued)
- continue;
- *total += queued;
- edca = &priv->edca.params[i];
- score = ((edca->aifns + edca->cwmin) << 16) +
- ((edca->cwmax - edca->cwmin) *
- (get_random_int() & 0xFFFF));
- if (score < best && (winner < 0 || i != 3)) {
- best = score;
- winner = i;
- }
- }
-
- /* override winner if bursting */
- if (winner >= 0 && priv->tx_burst_idx >= 0 &&
- winner != priv->tx_burst_idx &&
- !cw1200_queue_get_num_queued(
- &priv->tx_queue[winner],
- link_id_map & urgent) &&
- cw1200_queue_get_num_queued(
- &priv->tx_queue[priv->tx_burst_idx],
- link_id_map))
- winner = priv->tx_burst_idx;
-
- return winner;
-}
-
-static int wsm_get_tx_queue_and_mask(struct cw1200_common *priv,
- struct cw1200_queue **queue_p,
- u32 *tx_allowed_mask_p,
- bool *more)
-{
- int idx;
- u32 tx_allowed_mask;
- int total = 0;
-
- /* Search for a queue with multicast frames buffered */
- if (priv->tx_multicast) {
- tx_allowed_mask = BIT(CW1200_LINK_ID_AFTER_DTIM);
- idx = cw1200_get_prio_queue(priv,
- tx_allowed_mask, &total);
- if (idx >= 0) {
- *more = total > 1;
- goto found;
- }
- }
-
- /* Search for unicast traffic */
- tx_allowed_mask = ~priv->sta_asleep_mask;
- tx_allowed_mask |= BIT(CW1200_LINK_ID_UAPSD);
- if (priv->sta_asleep_mask) {
- tx_allowed_mask |= priv->pspoll_mask;
- tx_allowed_mask &= ~BIT(CW1200_LINK_ID_AFTER_DTIM);
- } else {
- tx_allowed_mask |= BIT(CW1200_LINK_ID_AFTER_DTIM);
- }
- idx = cw1200_get_prio_queue(priv,
- tx_allowed_mask, &total);
- if (idx < 0)
- return -ENOENT;
-
-found:
- *queue_p = &priv->tx_queue[idx];
- *tx_allowed_mask_p = tx_allowed_mask;
- return 0;
-}
-
-int wsm_get_tx(struct cw1200_common *priv, u8 **data,
- size_t *tx_len, int *burst)
-{
- struct wsm_tx *wsm = NULL;
- struct ieee80211_tx_info *tx_info;
- struct cw1200_queue *queue = NULL;
- int queue_num;
- u32 tx_allowed_mask = 0;
- const struct cw1200_txpriv *txpriv = NULL;
- int count = 0;
-
- /* More is used only for broadcasts. */
- bool more = false;
-
- if (priv->wsm_cmd.ptr) { /* CMD request */
- ++count;
- spin_lock(&priv->wsm_cmd.lock);
- BUG_ON(!priv->wsm_cmd.ptr);
- *data = priv->wsm_cmd.ptr;
- *tx_len = priv->wsm_cmd.len;
- *burst = 1;
- spin_unlock(&priv->wsm_cmd.lock);
- } else {
- for (;;) {
- int ret;
-
- if (atomic_add_return(0, &priv->tx_lock))
- break;
-
- spin_lock_bh(&priv->ps_state_lock);
-
- ret = wsm_get_tx_queue_and_mask(priv, &queue,
- &tx_allowed_mask, &more);
- queue_num = queue - priv->tx_queue;
-
- if (priv->buffered_multicasts &&
- (ret || !more) &&
- (priv->tx_multicast || !priv->sta_asleep_mask)) {
- priv->buffered_multicasts = false;
- if (priv->tx_multicast) {
- priv->tx_multicast = false;
- queue_work(priv->workqueue,
- &priv->multicast_stop_work);
- }
- }
-
- spin_unlock_bh(&priv->ps_state_lock);
-
- if (ret)
- break;
-
- if (cw1200_queue_get(queue,
- tx_allowed_mask,
- &wsm, &tx_info, &txpriv))
- continue;
-
- if (wsm_handle_tx_data(priv, wsm,
- tx_info, txpriv, queue))
- continue; /* Handled by WSM */
-
- wsm->hdr.id &= __cpu_to_le16(
- ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX));
- wsm->hdr.id |= cpu_to_le16(
- WSM_TX_LINK_ID(txpriv->raw_link_id));
- priv->pspoll_mask &= ~BIT(txpriv->raw_link_id);
-
- *data = (u8 *)wsm;
- *tx_len = __le16_to_cpu(wsm->hdr.len);
-
- /* allow bursting if txop is set */
- if (priv->edca.params[queue_num].txop_limit)
- *burst = min(*burst,
- (int)cw1200_queue_get_num_queued(queue, tx_allowed_mask) + 1);
- else
- *burst = 1;
-
- /* store index of bursting queue */
- if (*burst > 1)
- priv->tx_burst_idx = queue_num;
- else
- priv->tx_burst_idx = -1;
-
- if (more) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *)
- &((u8 *)wsm)[txpriv->offset];
- /* more buffered multicast/broadcast frames
- * ==> set MoreData flag in IEEE 802.11 header
- * to inform PS STAs
- */
- hdr->frame_control |=
- cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- }
-
- pr_debug("[WSM] >>> 0x%.4X (%zu) %p %c\n",
- 0x0004, *tx_len, *data,
- wsm->more ? 'M' : ' ');
- ++count;
- break;
- }
- }
-
- return count;
-}
-
-void wsm_txed(struct cw1200_common *priv, u8 *data)
-{
- if (data == priv->wsm_cmd.ptr) {
- spin_lock(&priv->wsm_cmd.lock);
- priv->wsm_cmd.ptr = NULL;
- spin_unlock(&priv->wsm_cmd.lock);
- }
-}
-
-/* ******************************************************************** */
-/* WSM buffer */
-
-void wsm_buf_init(struct wsm_buf *buf)
-{
- BUG_ON(buf->begin);
- buf->begin = kmalloc(FWLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
- buf->end = buf->begin ? &buf->begin[FWLOAD_BLOCK_SIZE] : buf->begin;
- wsm_buf_reset(buf);
-}
-
-void wsm_buf_deinit(struct wsm_buf *buf)
-{
- kfree(buf->begin);
- buf->begin = buf->data = buf->end = NULL;
-}
-
-static void wsm_buf_reset(struct wsm_buf *buf)
-{
- if (buf->begin) {
- buf->data = &buf->begin[4];
- *(u32 *)buf->begin = 0;
- } else {
- buf->data = buf->begin;
- }
-}
-
-static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size)
-{
- size_t pos = buf->data - buf->begin;
- size_t size = pos + extra_size;
-
- size = round_up(size, FWLOAD_BLOCK_SIZE);
-
- buf->begin = krealloc(buf->begin, size, GFP_KERNEL | GFP_DMA);
- if (buf->begin) {
- buf->data = &buf->begin[pos];
- buf->end = &buf->begin[size];
- return 0;
- } else {
- buf->end = buf->data = buf->begin;
- return -ENOMEM;
- }
-}
+++ /dev/null
-/*
- * WSM host interface (HI) interface for ST-Ericsson CW1200 mac80211 drivers
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * Based on CW1200 UMAC WSM API, which is
- * Copyright (C) ST-Ericsson SA 2010
- * Author: Stewart Mathers <stewart.mathers@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_WSM_H_INCLUDED
-#define CW1200_WSM_H_INCLUDED
-
-#include <linux/spinlock.h>
-
-struct cw1200_common;
-
-/* Bands */
-/* Radio band 2.412 -2.484 GHz. */
-#define WSM_PHY_BAND_2_4G (0)
-
-/* Radio band 4.9375-5.8250 GHz. */
-#define WSM_PHY_BAND_5G (1)
-
-/* Transmit rates */
-/* 1 Mbps ERP-DSSS */
-#define WSM_TRANSMIT_RATE_1 (0)
-
-/* 2 Mbps ERP-DSSS */
-#define WSM_TRANSMIT_RATE_2 (1)
-
-/* 5.5 Mbps ERP-CCK */
-#define WSM_TRANSMIT_RATE_5 (2)
-
-/* 11 Mbps ERP-CCK */
-#define WSM_TRANSMIT_RATE_11 (3)
-
-/* 22 Mbps ERP-PBCC (Not supported) */
-/* #define WSM_TRANSMIT_RATE_22 (4) */
-
-/* 33 Mbps ERP-PBCC (Not supported) */
-/* #define WSM_TRANSMIT_RATE_33 (5) */
-
-/* 6 Mbps (3 Mbps) ERP-OFDM, BPSK coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_6 (6)
-
-/* 9 Mbps (4.5 Mbps) ERP-OFDM, BPSK coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_9 (7)
-
-/* 12 Mbps (6 Mbps) ERP-OFDM, QPSK coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_12 (8)
-
-/* 18 Mbps (9 Mbps) ERP-OFDM, QPSK coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_18 (9)
-
-/* 24 Mbps (12 Mbps) ERP-OFDM, 16QAM coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_24 (10)
-
-/* 36 Mbps (18 Mbps) ERP-OFDM, 16QAM coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_36 (11)
-
-/* 48 Mbps (24 Mbps) ERP-OFDM, 64QAM coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_48 (12)
-
-/* 54 Mbps (27 Mbps) ERP-OFDM, 64QAM coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_54 (13)
-
-/* 6.5 Mbps HT-OFDM, BPSK coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_HT_6 (14)
-
-/* 13 Mbps HT-OFDM, QPSK coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_HT_13 (15)
-
-/* 19.5 Mbps HT-OFDM, QPSK coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_HT_19 (16)
-
-/* 26 Mbps HT-OFDM, 16QAM coding rate 1/2 */
-#define WSM_TRANSMIT_RATE_HT_26 (17)
-
-/* 39 Mbps HT-OFDM, 16QAM coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_HT_39 (18)
-
-/* 52 Mbps HT-OFDM, 64QAM coding rate 2/3 */
-#define WSM_TRANSMIT_RATE_HT_52 (19)
-
-/* 58.5 Mbps HT-OFDM, 64QAM coding rate 3/4 */
-#define WSM_TRANSMIT_RATE_HT_58 (20)
-
-/* 65 Mbps HT-OFDM, 64QAM coding rate 5/6 */
-#define WSM_TRANSMIT_RATE_HT_65 (21)
-
-/* Scan types */
-/* Foreground scan */
-#define WSM_SCAN_TYPE_FOREGROUND (0)
-
-/* Background scan */
-#define WSM_SCAN_TYPE_BACKGROUND (1)
-
-/* Auto scan */
-#define WSM_SCAN_TYPE_AUTO (2)
-
-/* Scan flags */
-/* Forced background scan means if the station cannot */
-/* enter the power-save mode, it shall force to perform a */
-/* background scan. Only valid when ScanType is */
-/* background scan. */
-#define WSM_SCAN_FLAG_FORCE_BACKGROUND (BIT(0))
-
-/* The WLAN device scans one channel at a time so */
-/* that disturbance to the data traffic is minimized. */
-#define WSM_SCAN_FLAG_SPLIT_METHOD (BIT(1))
-
-/* Preamble Type. Long if not set. */
-#define WSM_SCAN_FLAG_SHORT_PREAMBLE (BIT(2))
-
-/* 11n Tx Mode. Mixed if not set. */
-#define WSM_SCAN_FLAG_11N_GREENFIELD (BIT(3))
-
-/* Scan constraints */
-/* Maximum number of channels to be scanned. */
-#define WSM_SCAN_MAX_NUM_OF_CHANNELS (48)
-
-/* The maximum number of SSIDs that the device can scan for. */
-#define WSM_SCAN_MAX_NUM_OF_SSIDS (2)
-
-/* Power management modes */
-/* 802.11 Active mode */
-#define WSM_PSM_ACTIVE (0)
-
-/* 802.11 PS mode */
-#define WSM_PSM_PS BIT(0)
-
-/* Fast Power Save bit */
-#define WSM_PSM_FAST_PS_FLAG BIT(7)
-
-/* Dynamic aka Fast power save */
-#define WSM_PSM_FAST_PS (BIT(0) | BIT(7))
-
-/* Undetermined */
-/* Note : Undetermined status is reported when the */
-/* NULL data frame used to advertise the PM mode to */
-/* the AP at Pre or Post Background Scan is not Acknowledged */
-#define WSM_PSM_UNKNOWN BIT(1)
-
-/* Queue IDs */
-/* best effort/legacy */
-#define WSM_QUEUE_BEST_EFFORT (0)
-
-/* background */
-#define WSM_QUEUE_BACKGROUND (1)
-
-/* video */
-#define WSM_QUEUE_VIDEO (2)
-
-/* voice */
-#define WSM_QUEUE_VOICE (3)
-
-/* HT TX parameters */
-/* Non-HT */
-#define WSM_HT_TX_NON_HT (0)
-
-/* Mixed format */
-#define WSM_HT_TX_MIXED (1)
-
-/* Greenfield format */
-#define WSM_HT_TX_GREENFIELD (2)
-
-/* STBC allowed */
-#define WSM_HT_TX_STBC (BIT(7))
-
-/* EPTA prioirty flags for BT Coex */
-/* default epta priority */
-#define WSM_EPTA_PRIORITY_DEFAULT 4
-/* use for normal data */
-#define WSM_EPTA_PRIORITY_DATA 4
-/* use for connect/disconnect/roaming*/
-#define WSM_EPTA_PRIORITY_MGT 5
-/* use for action frames */
-#define WSM_EPTA_PRIORITY_ACTION 5
-/* use for AC_VI data */
-#define WSM_EPTA_PRIORITY_VIDEO 5
-/* use for AC_VO data */
-#define WSM_EPTA_PRIORITY_VOICE 6
-/* use for EAPOL exchange */
-#define WSM_EPTA_PRIORITY_EAPOL 7
-
-/* TX status */
-/* Frame was sent aggregated */
-/* Only valid for WSM_SUCCESS status. */
-#define WSM_TX_STATUS_AGGREGATION (BIT(0))
-
-/* Host should requeue this frame later. */
-/* Valid only when status is WSM_REQUEUE. */
-#define WSM_TX_STATUS_REQUEUE (BIT(1))
-
-/* Normal Ack */
-#define WSM_TX_STATUS_NORMAL_ACK (0<<2)
-
-/* No Ack */
-#define WSM_TX_STATUS_NO_ACK (1<<2)
-
-/* No explicit acknowledgement */
-#define WSM_TX_STATUS_NO_EXPLICIT_ACK (2<<2)
-
-/* Block Ack */
-/* Only valid for WSM_SUCCESS status. */
-#define WSM_TX_STATUS_BLOCK_ACK (3<<2)
-
-/* RX status */
-/* Unencrypted */
-#define WSM_RX_STATUS_UNENCRYPTED (0<<0)
-
-/* WEP */
-#define WSM_RX_STATUS_WEP (1<<0)
-
-/* TKIP */
-#define WSM_RX_STATUS_TKIP (2<<0)
-
-/* AES */
-#define WSM_RX_STATUS_AES (3<<0)
-
-/* WAPI */
-#define WSM_RX_STATUS_WAPI (4<<0)
-
-/* Macro to fetch encryption subfield. */
-#define WSM_RX_STATUS_ENCRYPTION(status) ((status) & 0x07)
-
-/* Frame was part of an aggregation */
-#define WSM_RX_STATUS_AGGREGATE (BIT(3))
-
-/* Frame was first in the aggregation */
-#define WSM_RX_STATUS_AGGREGATE_FIRST (BIT(4))
-
-/* Frame was last in the aggregation */
-#define WSM_RX_STATUS_AGGREGATE_LAST (BIT(5))
-
-/* Indicates a defragmented frame */
-#define WSM_RX_STATUS_DEFRAGMENTED (BIT(6))
-
-/* Indicates a Beacon frame */
-#define WSM_RX_STATUS_BEACON (BIT(7))
-
-/* Indicates STA bit beacon TIM field */
-#define WSM_RX_STATUS_TIM (BIT(8))
-
-/* Indicates Beacon frame's virtual bitmap contains multicast bit */
-#define WSM_RX_STATUS_MULTICAST (BIT(9))
-
-/* Indicates frame contains a matching SSID */
-#define WSM_RX_STATUS_MATCHING_SSID (BIT(10))
-
-/* Indicates frame contains a matching BSSI */
-#define WSM_RX_STATUS_MATCHING_BSSI (BIT(11))
-
-/* Indicates More bit set in Framectl field */
-#define WSM_RX_STATUS_MORE_DATA (BIT(12))
-
-/* Indicates frame received during a measurement process */
-#define WSM_RX_STATUS_MEASUREMENT (BIT(13))
-
-/* Indicates frame received as an HT packet */
-#define WSM_RX_STATUS_HT (BIT(14))
-
-/* Indicates frame received with STBC */
-#define WSM_RX_STATUS_STBC (BIT(15))
-
-/* Indicates Address 1 field matches dot11StationId */
-#define WSM_RX_STATUS_ADDRESS1 (BIT(16))
-
-/* Indicates Group address present in the Address 1 field */
-#define WSM_RX_STATUS_GROUP (BIT(17))
-
-/* Indicates Broadcast address present in the Address 1 field */
-#define WSM_RX_STATUS_BROADCAST (BIT(18))
-
-/* Indicates group key used with encrypted frames */
-#define WSM_RX_STATUS_GROUP_KEY (BIT(19))
-
-/* Macro to fetch encryption key index. */
-#define WSM_RX_STATUS_KEY_IDX(status) (((status >> 20)) & 0x0F)
-
-/* Indicates TSF inclusion after 802.11 frame body */
-#define WSM_RX_STATUS_TSF_INCLUDED (BIT(24))
-
-/* Frame Control field starts at Frame offset + 2 */
-#define WSM_TX_2BYTES_SHIFT (BIT(7))
-
-/* Join mode */
-/* IBSS */
-#define WSM_JOIN_MODE_IBSS (0)
-
-/* BSS */
-#define WSM_JOIN_MODE_BSS (1)
-
-/* PLCP preamble type */
-/* For long preamble */
-#define WSM_JOIN_PREAMBLE_LONG (0)
-
-/* For short preamble (Long for 1Mbps) */
-#define WSM_JOIN_PREAMBLE_SHORT (1)
-
-/* For short preamble (Long for 1 and 2Mbps) */
-#define WSM_JOIN_PREAMBLE_SHORT_2 (2)
-
-/* Join flags */
-/* Unsynchronized */
-#define WSM_JOIN_FLAGS_UNSYNCRONIZED BIT(0)
-/* The BSS owner is a P2P GO */
-#define WSM_JOIN_FLAGS_P2P_GO BIT(1)
-/* Force to join BSS with the BSSID and the
- * SSID specified without waiting for beacons. The
- * ProbeForJoin parameter is ignored.
- */
-#define WSM_JOIN_FLAGS_FORCE BIT(2)
-/* Give probe request/response higher
- * priority over the BT traffic
- */
-#define WSM_JOIN_FLAGS_PRIO BIT(3)
-/* Issue immediate join confirmation and use
- * join complete to notify about completion
- */
-#define WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND BIT(5)
-
-/* Key types */
-#define WSM_KEY_TYPE_WEP_DEFAULT (0)
-#define WSM_KEY_TYPE_WEP_PAIRWISE (1)
-#define WSM_KEY_TYPE_TKIP_GROUP (2)
-#define WSM_KEY_TYPE_TKIP_PAIRWISE (3)
-#define WSM_KEY_TYPE_AES_GROUP (4)
-#define WSM_KEY_TYPE_AES_PAIRWISE (5)
-#define WSM_KEY_TYPE_WAPI_GROUP (6)
-#define WSM_KEY_TYPE_WAPI_PAIRWISE (7)
-
-/* Key indexes */
-#define WSM_KEY_MAX_INDEX (10)
-
-/* ACK policy */
-#define WSM_ACK_POLICY_NORMAL (0)
-#define WSM_ACK_POLICY_NO_ACK (1)
-
-/* Start modes */
-#define WSM_START_MODE_AP (0) /* Mini AP */
-#define WSM_START_MODE_P2P_GO (1) /* P2P GO */
-#define WSM_START_MODE_P2P_DEV (2) /* P2P device */
-
-/* SetAssociationMode MIB flags */
-#define WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE (BIT(0))
-#define WSM_ASSOCIATION_MODE_USE_HT_MODE (BIT(1))
-#define WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET (BIT(2))
-#define WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING (BIT(3))
-#define WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES (BIT(4))
-
-/* RcpiRssiThreshold MIB flags */
-#define WSM_RCPI_RSSI_THRESHOLD_ENABLE (BIT(0))
-#define WSM_RCPI_RSSI_USE_RSSI (BIT(1))
-#define WSM_RCPI_RSSI_DONT_USE_UPPER (BIT(2))
-#define WSM_RCPI_RSSI_DONT_USE_LOWER (BIT(3))
-
-/* Update-ie constants */
-#define WSM_UPDATE_IE_BEACON (BIT(0))
-#define WSM_UPDATE_IE_PROBE_RESP (BIT(1))
-#define WSM_UPDATE_IE_PROBE_REQ (BIT(2))
-
-/* WSM events */
-/* Error */
-#define WSM_EVENT_ERROR (0)
-
-/* BSS lost */
-#define WSM_EVENT_BSS_LOST (1)
-
-/* BSS regained */
-#define WSM_EVENT_BSS_REGAINED (2)
-
-/* Radar detected */
-#define WSM_EVENT_RADAR_DETECTED (3)
-
-/* RCPI or RSSI threshold triggered */
-#define WSM_EVENT_RCPI_RSSI (4)
-
-/* BT inactive */
-#define WSM_EVENT_BT_INACTIVE (5)
-
-/* BT active */
-#define WSM_EVENT_BT_ACTIVE (6)
-
-/* MIB IDs */
-/* 4.1 dot11StationId */
-#define WSM_MIB_ID_DOT11_STATION_ID 0x0000
-
-/* 4.2 dot11MaxtransmitMsduLifeTime */
-#define WSM_MIB_ID_DOT11_MAX_TRANSMIT_LIFTIME 0x0001
-
-/* 4.3 dot11MaxReceiveLifeTime */
-#define WSM_MIB_ID_DOT11_MAX_RECEIVE_LIFETIME 0x0002
-
-/* 4.4 dot11SlotTime */
-#define WSM_MIB_ID_DOT11_SLOT_TIME 0x0003
-
-/* 4.5 dot11GroupAddressesTable */
-#define WSM_MIB_ID_DOT11_GROUP_ADDRESSES_TABLE 0x0004
-#define WSM_MAX_GRP_ADDRTABLE_ENTRIES 8
-
-/* 4.6 dot11WepDefaultKeyId */
-#define WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID 0x0005
-
-/* 4.7 dot11CurrentTxPowerLevel */
-#define WSM_MIB_ID_DOT11_CURRENT_TX_POWER_LEVEL 0x0006
-
-/* 4.8 dot11RTSThreshold */
-#define WSM_MIB_ID_DOT11_RTS_THRESHOLD 0x0007
-
-/* 4.9 NonErpProtection */
-#define WSM_MIB_ID_NON_ERP_PROTECTION 0x1000
-
-/* 4.10 ArpIpAddressesTable */
-#define WSM_MIB_ID_ARP_IP_ADDRESSES_TABLE 0x1001
-#define WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES 1
-
-/* 4.11 TemplateFrame */
-#define WSM_MIB_ID_TEMPLATE_FRAME 0x1002
-
-/* 4.12 RxFilter */
-#define WSM_MIB_ID_RX_FILTER 0x1003
-
-/* 4.13 BeaconFilterTable */
-#define WSM_MIB_ID_BEACON_FILTER_TABLE 0x1004
-
-/* 4.14 BeaconFilterEnable */
-#define WSM_MIB_ID_BEACON_FILTER_ENABLE 0x1005
-
-/* 4.15 OperationalPowerMode */
-#define WSM_MIB_ID_OPERATIONAL_POWER_MODE 0x1006
-
-/* 4.16 BeaconWakeUpPeriod */
-#define WSM_MIB_ID_BEACON_WAKEUP_PERIOD 0x1007
-
-/* 4.17 RcpiRssiThreshold */
-#define WSM_MIB_ID_RCPI_RSSI_THRESHOLD 0x1009
-
-/* 4.18 StatisticsTable */
-#define WSM_MIB_ID_STATISTICS_TABLE 0x100A
-
-/* 4.19 IbssPsConfig */
-#define WSM_MIB_ID_IBSS_PS_CONFIG 0x100B
-
-/* 4.20 CountersTable */
-#define WSM_MIB_ID_COUNTERS_TABLE 0x100C
-
-/* 4.21 BlockAckPolicy */
-#define WSM_MIB_ID_BLOCK_ACK_POLICY 0x100E
-
-/* 4.22 OverrideInternalTxRate */
-#define WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE 0x100F
-
-/* 4.23 SetAssociationMode */
-#define WSM_MIB_ID_SET_ASSOCIATION_MODE 0x1010
-
-/* 4.24 UpdateEptaConfigData */
-#define WSM_MIB_ID_UPDATE_EPTA_CONFIG_DATA 0x1011
-
-/* 4.25 SelectCcaMethod */
-#define WSM_MIB_ID_SELECT_CCA_METHOD 0x1012
-
-/* 4.26 SetUpasdInformation */
-#define WSM_MIB_ID_SET_UAPSD_INFORMATION 0x1013
-
-/* 4.27 SetAutoCalibrationMode WBF00004073 */
-#define WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE 0x1015
-
-/* 4.28 SetTxRateRetryPolicy */
-#define WSM_MIB_ID_SET_TX_RATE_RETRY_POLICY 0x1016
-
-/* 4.29 SetHostMessageTypeFilter */
-#define WSM_MIB_ID_SET_HOST_MSG_TYPE_FILTER 0x1017
-
-/* 4.30 P2PFindInfo */
-#define WSM_MIB_ID_P2P_FIND_INFO 0x1018
-
-/* 4.31 P2PPsModeInfo */
-#define WSM_MIB_ID_P2P_PS_MODE_INFO 0x1019
-
-/* 4.32 SetEtherTypeDataFrameFilter */
-#define WSM_MIB_ID_SET_ETHERTYPE_DATAFRAME_FILTER 0x101A
-
-/* 4.33 SetUDPPortDataFrameFilter */
-#define WSM_MIB_ID_SET_UDPPORT_DATAFRAME_FILTER 0x101B
-
-/* 4.34 SetMagicDataFrameFilter */
-#define WSM_MIB_ID_SET_MAGIC_DATAFRAME_FILTER 0x101C
-
-/* 4.35 P2PDeviceInfo */
-#define WSM_MIB_ID_P2P_DEVICE_INFO 0x101D
-
-/* 4.36 SetWCDMABand */
-#define WSM_MIB_ID_SET_WCDMA_BAND 0x101E
-
-/* 4.37 GroupTxSequenceCounter */
-#define WSM_MIB_ID_GRP_SEQ_COUNTER 0x101F
-
-/* 4.38 ProtectedMgmtPolicy */
-#define WSM_MIB_ID_PROTECTED_MGMT_POLICY 0x1020
-
-/* 4.39 SetHtProtection */
-#define WSM_MIB_ID_SET_HT_PROTECTION 0x1021
-
-/* 4.40 GPIO Command */
-#define WSM_MIB_ID_GPIO_COMMAND 0x1022
-
-/* 4.41 TSF Counter Value */
-#define WSM_MIB_ID_TSF_COUNTER 0x1023
-
-/* Test Purposes Only */
-#define WSM_MIB_ID_BLOCK_ACK_INFO 0x100D
-
-/* 4.42 UseMultiTxConfMessage */
-#define WSM_MIB_USE_MULTI_TX_CONF 0x1024
-
-/* 4.43 Keep-alive period */
-#define WSM_MIB_ID_KEEP_ALIVE_PERIOD 0x1025
-
-/* 4.44 Disable BSSID filter */
-#define WSM_MIB_ID_DISABLE_BSSID_FILTER 0x1026
-
-/* Frame template types */
-#define WSM_FRAME_TYPE_PROBE_REQUEST (0)
-#define WSM_FRAME_TYPE_BEACON (1)
-#define WSM_FRAME_TYPE_NULL (2)
-#define WSM_FRAME_TYPE_QOS_NULL (3)
-#define WSM_FRAME_TYPE_PS_POLL (4)
-#define WSM_FRAME_TYPE_PROBE_RESPONSE (5)
-
-#define WSM_FRAME_GREENFIELD (0x80) /* See 4.11 */
-
-/* Status */
-/* The WSM firmware has completed a request */
-/* successfully. */
-#define WSM_STATUS_SUCCESS (0)
-
-/* This is a generic failure code if other error codes do */
-/* not apply. */
-#define WSM_STATUS_FAILURE (1)
-
-/* A request contains one or more invalid parameters. */
-#define WSM_INVALID_PARAMETER (2)
-
-/* The request cannot perform because the device is in */
-/* an inappropriate mode. */
-#define WSM_ACCESS_DENIED (3)
-
-/* The frame received includes a decryption error. */
-#define WSM_STATUS_DECRYPTFAILURE (4)
-
-/* A MIC failure is detected in the received packets. */
-#define WSM_STATUS_MICFAILURE (5)
-
-/* The transmit request failed due to retry limit being */
-/* exceeded. */
-#define WSM_STATUS_RETRY_EXCEEDED (6)
-
-/* The transmit request failed due to MSDU life time */
-/* being exceeded. */
-#define WSM_STATUS_TX_LIFETIME_EXCEEDED (7)
-
-/* The link to the AP is lost. */
-#define WSM_STATUS_LINK_LOST (8)
-
-/* No key was found for the encrypted frame */
-#define WSM_STATUS_NO_KEY_FOUND (9)
-
-/* Jammer was detected when transmitting this frame */
-#define WSM_STATUS_JAMMER_DETECTED (10)
-
-/* The message should be requeued later. */
-/* This is applicable only to Transmit */
-#define WSM_REQUEUE (11)
-
-/* Advanced filtering options */
-#define WSM_MAX_FILTER_ELEMENTS (4)
-
-#define WSM_FILTER_ACTION_IGNORE (0)
-#define WSM_FILTER_ACTION_FILTER_IN (1)
-#define WSM_FILTER_ACTION_FILTER_OUT (2)
-
-#define WSM_FILTER_PORT_TYPE_DST (0)
-#define WSM_FILTER_PORT_TYPE_SRC (1)
-
-/* Actual header of WSM messages */
-struct wsm_hdr {
- __le16 len;
- __le16 id;
-};
-
-#define WSM_TX_SEQ_MAX (7)
-#define WSM_TX_SEQ(seq) \
- ((seq & WSM_TX_SEQ_MAX) << 13)
-#define WSM_TX_LINK_ID_MAX (0x0F)
-#define WSM_TX_LINK_ID(link_id) \
- ((link_id & WSM_TX_LINK_ID_MAX) << 6)
-
-#define MAX_BEACON_SKIP_TIME_MS 1000
-
-#define WSM_CMD_LAST_CHANCE_TIMEOUT (HZ * 3 / 2)
-
-/* ******************************************************************** */
-/* WSM capability */
-
-#define WSM_STARTUP_IND_ID 0x0801
-
-struct wsm_startup_ind {
- u16 input_buffers;
- u16 input_buffer_size;
- u16 status;
- u16 hw_id;
- u16 hw_subid;
- u16 fw_cap;
- u16 fw_type;
- u16 fw_api;
- u16 fw_build;
- u16 fw_ver;
- char fw_label[128];
- u32 config[4];
-};
-
-/* ******************************************************************** */
-/* WSM commands */
-
-/* 3.1 */
-#define WSM_CONFIGURATION_REQ_ID 0x0009
-#define WSM_CONFIGURATION_RESP_ID 0x0409
-
-struct wsm_tx_power_range {
- int min_power_level;
- int max_power_level;
- u32 stepping;
-};
-
-struct wsm_configuration {
- /* [in] */ u32 dot11MaxTransmitMsduLifeTime;
- /* [in] */ u32 dot11MaxReceiveLifeTime;
- /* [in] */ u32 dot11RtsThreshold;
- /* [in, out] */ u8 *dot11StationId;
- /* [in] */ const void *dpdData;
- /* [in] */ size_t dpdData_size;
- /* [out] */ u8 dot11FrequencyBandsSupported;
- /* [out] */ u32 supportedRateMask;
- /* [out] */ struct wsm_tx_power_range txPowerRange[2];
-};
-
-int wsm_configuration(struct cw1200_common *priv,
- struct wsm_configuration *arg);
-
-/* 3.3 */
-#define WSM_RESET_REQ_ID 0x000A
-#define WSM_RESET_RESP_ID 0x040A
-struct wsm_reset {
- /* [in] */ int link_id;
- /* [in] */ bool reset_statistics;
-};
-
-int wsm_reset(struct cw1200_common *priv, const struct wsm_reset *arg);
-
-/* 3.5 */
-#define WSM_READ_MIB_REQ_ID 0x0005
-#define WSM_READ_MIB_RESP_ID 0x0405
-int wsm_read_mib(struct cw1200_common *priv, u16 mib_id, void *buf,
- size_t buf_size);
-
-/* 3.7 */
-#define WSM_WRITE_MIB_REQ_ID 0x0006
-#define WSM_WRITE_MIB_RESP_ID 0x0406
-int wsm_write_mib(struct cw1200_common *priv, u16 mib_id, void *buf,
- size_t buf_size);
-
-/* 3.9 */
-#define WSM_START_SCAN_REQ_ID 0x0007
-#define WSM_START_SCAN_RESP_ID 0x0407
-
-struct wsm_ssid {
- u8 ssid[32];
- u32 length;
-};
-
-struct wsm_scan_ch {
- u16 number;
- u32 min_chan_time;
- u32 max_chan_time;
- u32 tx_power_level;
-};
-
-struct wsm_scan {
- /* WSM_PHY_BAND_... */
- u8 band;
-
- /* WSM_SCAN_TYPE_... */
- u8 type;
-
- /* WSM_SCAN_FLAG_... */
- u8 flags;
-
- /* WSM_TRANSMIT_RATE_... */
- u8 max_tx_rate;
-
- /* Interval period in TUs that the device shall the re- */
- /* execute the requested scan. Max value supported by the device */
- /* is 256s. */
- u32 auto_scan_interval;
-
- /* Number of probe requests (per SSID) sent to one (1) */
- /* channel. Zero (0) means that none is send, which */
- /* means that a passive scan is to be done. Value */
- /* greater than zero (0) means that an active scan is to */
- /* be done. */
- u32 num_probes;
-
- /* Number of channels to be scanned. */
- /* Maximum value is WSM_SCAN_MAX_NUM_OF_CHANNELS. */
- u8 num_channels;
-
- /* Number of SSID provided in the scan command (this */
- /* is zero (0) in broadcast scan) */
- /* The maximum number of SSIDs is WSM_SCAN_MAX_NUM_OF_SSIDS. */
- u8 num_ssids;
-
- /* The delay time (in microseconds) period */
- /* before sending a probe-request. */
- u8 probe_delay;
-
- /* SSIDs to be scanned [numOfSSIDs]; */
- struct wsm_ssid *ssids;
-
- /* Channels to be scanned [numOfChannels]; */
- struct wsm_scan_ch *ch;
-};
-
-int wsm_scan(struct cw1200_common *priv, const struct wsm_scan *arg);
-
-/* 3.11 */
-#define WSM_STOP_SCAN_REQ_ID 0x0008
-#define WSM_STOP_SCAN_RESP_ID 0x0408
-int wsm_stop_scan(struct cw1200_common *priv);
-
-/* 3.13 */
-#define WSM_SCAN_COMPLETE_IND_ID 0x0806
-struct wsm_scan_complete {
- /* WSM_STATUS_... */
- u32 status;
-
- /* WSM_PSM_... */
- u8 psm;
-
- /* Number of channels that the scan operation completed. */
- u8 num_channels;
-};
-
-/* 3.14 */
-#define WSM_TX_CONFIRM_IND_ID 0x0404
-#define WSM_MULTI_TX_CONFIRM_ID 0x041E
-
-struct wsm_tx_confirm {
- /* Packet identifier used in wsm_tx. */
- u32 packet_id;
-
- /* WSM_STATUS_... */
- u32 status;
-
- /* WSM_TRANSMIT_RATE_... */
- u8 tx_rate;
-
- /* The number of times the frame was transmitted */
- /* without receiving an acknowledgement. */
- u8 ack_failures;
-
- /* WSM_TX_STATUS_... */
- u16 flags;
-
- /* The total time in microseconds that the frame spent in */
- /* the WLAN device before transmission as completed. */
- u32 media_delay;
-
- /* The total time in microseconds that the frame spent in */
- /* the WLAN device before transmission was started. */
- u32 tx_queue_delay;
-};
-
-/* 3.15 */
-typedef void (*wsm_tx_confirm_cb) (struct cw1200_common *priv,
- struct wsm_tx_confirm *arg);
-
-/* Note that ideology of wsm_tx struct is different against the rest of
- * WSM API. wsm_hdr is /not/ a caller-adapted struct to be used as an input
- * argument for WSM call, but a prepared bytestream to be sent to firmware.
- * It is filled partly in cw1200_tx, partly in low-level WSM code.
- * Please pay attention once again: ideology is different.
- *
- * Legend:
- * - [in]: cw1200_tx must fill this field.
- * - [wsm]: the field is filled by low-level WSM.
- */
-struct wsm_tx {
- /* common WSM header */
- struct wsm_hdr hdr;
-
- /* Packet identifier that meant to be used in completion. */
- u32 packet_id; /* Note this is actually a cookie */
-
- /* WSM_TRANSMIT_RATE_... */
- u8 max_tx_rate;
-
- /* WSM_QUEUE_... */
- u8 queue_id;
-
- /* True: another packet is pending on the host for transmission. */
- u8 more;
-
- /* Bit 0 = 0 - Start expiry time from first Tx attempt (default) */
- /* Bit 0 = 1 - Start expiry time from receipt of Tx Request */
- /* Bits 3:1 - PTA Priority */
- /* Bits 6:4 - Tx Rate Retry Policy */
- /* Bit 7 - Reserved */
- u8 flags;
-
- /* Should be 0. */
- u32 reserved;
-
- /* The elapsed time in TUs, after the initial transmission */
- /* of an MSDU, after which further attempts to transmit */
- /* the MSDU shall be terminated. Overrides the global */
- /* dot11MaxTransmitMsduLifeTime setting [optional] */
- /* Device will set the default value if this is 0. */
- __le32 expire_time;
-
- /* WSM_HT_TX_... */
- __le32 ht_tx_parameters;
-} __packed;
-
-/* = sizeof(generic hi hdr) + sizeof(wsm hdr) + sizeof(alignment) */
-#define WSM_TX_EXTRA_HEADROOM (28)
-
-/* 3.16 */
-#define WSM_RECEIVE_IND_ID 0x0804
-
-struct wsm_rx {
- /* WSM_STATUS_... */
- u32 status;
-
- /* Specifies the channel of the received packet. */
- u16 channel_number;
-
- /* WSM_TRANSMIT_RATE_... */
- u8 rx_rate;
-
- /* This value is expressed in signed Q8.0 format for */
- /* RSSI and unsigned Q7.1 format for RCPI. */
- u8 rcpi_rssi;
-
- /* WSM_RX_STATUS_... */
- u32 flags;
-};
-
-/* = sizeof(generic hi hdr) + sizeof(wsm hdr) */
-#define WSM_RX_EXTRA_HEADROOM (16)
-
-typedef void (*wsm_rx_cb) (struct cw1200_common *priv, struct wsm_rx *arg,
- struct sk_buff **skb_p);
-
-/* 3.17 */
-struct wsm_event {
- /* WSM_STATUS_... */
- /* [out] */ u32 id;
-
- /* Indication parameters. */
- /* For error indication, this shall be a 32-bit WSM status. */
- /* For RCPI or RSSI indication, this should be an 8-bit */
- /* RCPI or RSSI value. */
- /* [out] */ u32 data;
-};
-
-struct cw1200_wsm_event {
- struct list_head link;
- struct wsm_event evt;
-};
-
-/* 3.18 - 3.22 */
-/* Measurement. Skipped for now. Irrelevent. */
-
-typedef void (*wsm_event_cb) (struct cw1200_common *priv,
- struct wsm_event *arg);
-
-/* 3.23 */
-#define WSM_JOIN_REQ_ID 0x000B
-#define WSM_JOIN_RESP_ID 0x040B
-
-struct wsm_join {
- /* WSM_JOIN_MODE_... */
- u8 mode;
-
- /* WSM_PHY_BAND_... */
- u8 band;
-
- /* Specifies the channel number to join. The channel */
- /* number will be mapped to an actual frequency */
- /* according to the band */
- u16 channel_number;
-
- /* Specifies the BSSID of the BSS or IBSS to be joined */
- /* or the IBSS to be started. */
- u8 bssid[6];
-
- /* ATIM window of IBSS */
- /* When ATIM window is zero the initiated IBSS does */
- /* not support power saving. */
- u16 atim_window;
-
- /* WSM_JOIN_PREAMBLE_... */
- u8 preamble_type;
-
- /* Specifies if a probe request should be send with the */
- /* specified SSID when joining to the network. */
- u8 probe_for_join;
-
- /* DTIM Period (In multiples of beacon interval) */
- u8 dtim_period;
-
- /* WSM_JOIN_FLAGS_... */
- u8 flags;
-
- /* Length of the SSID */
- u32 ssid_len;
-
- /* Specifies the SSID of the IBSS to join or start */
- u8 ssid[32];
-
- /* Specifies the time between TBTTs in TUs */
- u32 beacon_interval;
-
- /* A bit mask that defines the BSS basic rate set. */
- u32 basic_rate_set;
-};
-
-struct wsm_join_cnf {
- u32 status;
-
- /* Minimum transmission power level in units of 0.1dBm */
- u32 min_power_level;
-
- /* Maximum transmission power level in units of 0.1dBm */
- u32 max_power_level;
-};
-
-int wsm_join(struct cw1200_common *priv, struct wsm_join *arg);
-
-/* 3.24 */
-struct wsm_join_complete {
- /* WSM_STATUS_... */
- u32 status;
-};
-
-/* 3.25 */
-#define WSM_SET_PM_REQ_ID 0x0010
-#define WSM_SET_PM_RESP_ID 0x0410
-struct wsm_set_pm {
- /* WSM_PSM_... */
- u8 mode;
-
- /* in unit of 500us; 0 to use default */
- u8 fast_psm_idle_period;
-
- /* in unit of 500us; 0 to use default */
- u8 ap_psm_change_period;
-
- /* in unit of 500us; 0 to disable auto-pspoll */
- u8 min_auto_pspoll_period;
-};
-
-int wsm_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
-
-/* 3.27 */
-struct wsm_set_pm_complete {
- u8 psm; /* WSM_PSM_... */
-};
-
-/* 3.28 */
-#define WSM_SET_BSS_PARAMS_REQ_ID 0x0011
-#define WSM_SET_BSS_PARAMS_RESP_ID 0x0411
-struct wsm_set_bss_params {
- /* This resets the beacon loss counters only */
- u8 reset_beacon_loss;
-
- /* The number of lost consecutive beacons after which */
- /* the WLAN device should indicate the BSS-Lost event */
- /* to the WLAN host driver. */
- u8 beacon_lost_count;
-
- /* The AID received during the association process. */
- u16 aid;
-
- /* The operational rate set mask */
- u32 operational_rate_set;
-};
-
-int wsm_set_bss_params(struct cw1200_common *priv,
- const struct wsm_set_bss_params *arg);
-
-/* 3.30 */
-#define WSM_ADD_KEY_REQ_ID 0x000C
-#define WSM_ADD_KEY_RESP_ID 0x040C
-struct wsm_add_key {
- u8 type; /* WSM_KEY_TYPE_... */
- u8 index; /* Key entry index: 0 -- WSM_KEY_MAX_INDEX */
- u16 reserved;
- union {
- struct {
- u8 peer[6]; /* MAC address of the peer station */
- u8 reserved;
- u8 keylen; /* Key length in bytes */
- u8 keydata[16]; /* Key data */
- } __packed wep_pairwise;
- struct {
- u8 keyid; /* Unique per key identifier (0..3) */
- u8 keylen; /* Key length in bytes */
- u16 reserved;
- u8 keydata[16]; /* Key data */
- } __packed wep_group;
- struct {
- u8 peer[6]; /* MAC address of the peer station */
- u16 reserved;
- u8 keydata[16]; /* TKIP key data */
- u8 rx_mic_key[8]; /* Rx MIC key */
- u8 tx_mic_key[8]; /* Tx MIC key */
- } __packed tkip_pairwise;
- struct {
- u8 keydata[16]; /* TKIP key data */
- u8 rx_mic_key[8]; /* Rx MIC key */
- u8 keyid; /* Key ID */
- u8 reserved[3];
- u8 rx_seqnum[8]; /* Receive Sequence Counter */
- } __packed tkip_group;
- struct {
- u8 peer[6]; /* MAC address of the peer station */
- u16 reserved;
- u8 keydata[16]; /* AES key data */
- } __packed aes_pairwise;
- struct {
- u8 keydata[16]; /* AES key data */
- u8 keyid; /* Key ID */
- u8 reserved[3];
- u8 rx_seqnum[8]; /* Receive Sequence Counter */
- } __packed aes_group;
- struct {
- u8 peer[6]; /* MAC address of the peer station */
- u8 keyid; /* Key ID */
- u8 reserved;
- u8 keydata[16]; /* WAPI key data */
- u8 mic_key[16]; /* MIC key data */
- } __packed wapi_pairwise;
- struct {
- u8 keydata[16]; /* WAPI key data */
- u8 mic_key[16]; /* MIC key data */
- u8 keyid; /* Key ID */
- u8 reserved[3];
- } __packed wapi_group;
- } __packed;
-} __packed;
-
-int wsm_add_key(struct cw1200_common *priv, const struct wsm_add_key *arg);
-
-/* 3.32 */
-#define WSM_REMOVE_KEY_REQ_ID 0x000D
-#define WSM_REMOVE_KEY_RESP_ID 0x040D
-struct wsm_remove_key {
- u8 index; /* Key entry index : 0-10 */
-};
-
-int wsm_remove_key(struct cw1200_common *priv,
- const struct wsm_remove_key *arg);
-
-/* 3.34 */
-struct wsm_set_tx_queue_params {
- /* WSM_ACK_POLICY_... */
- u8 ackPolicy;
-
- /* Medium Time of TSPEC (in 32us units) allowed per */
- /* One Second Averaging Period for this queue. */
- u16 allowedMediumTime;
-
- /* dot11MaxTransmitMsduLifetime to be used for the */
- /* specified queue. */
- u32 maxTransmitLifetime;
-};
-
-struct wsm_tx_queue_params {
- /* NOTE: index is a linux queue id. */
- struct wsm_set_tx_queue_params params[4];
-};
-
-
-#define WSM_TX_QUEUE_SET(queue_params, queue, ack_policy, allowed_time,\
- max_life_time) \
-do { \
- struct wsm_set_tx_queue_params *p = &(queue_params)->params[queue]; \
- p->ackPolicy = (ack_policy); \
- p->allowedMediumTime = (allowed_time); \
- p->maxTransmitLifetime = (max_life_time); \
-} while (0)
-
-int wsm_set_tx_queue_params(struct cw1200_common *priv,
- const struct wsm_set_tx_queue_params *arg, u8 id);
-
-/* 3.36 */
-#define WSM_EDCA_PARAMS_REQ_ID 0x0013
-#define WSM_EDCA_PARAMS_RESP_ID 0x0413
-struct wsm_edca_queue_params {
- /* CWmin (in slots) for the access class. */
- u16 cwmin;
-
- /* CWmax (in slots) for the access class. */
- u16 cwmax;
-
- /* AIFS (in slots) for the access class. */
- u16 aifns;
-
- /* TX OP Limit (in microseconds) for the access class. */
- u16 txop_limit;
-
- /* dot11MaxReceiveLifetime to be used for the specified */
- /* the access class. Overrides the global */
- /* dot11MaxReceiveLifetime value */
- u32 max_rx_lifetime;
-};
-
-struct wsm_edca_params {
- /* NOTE: index is a linux queue id. */
- struct wsm_edca_queue_params params[4];
- bool uapsd_enable[4];
-};
-
-#define TXOP_UNIT 32
-#define WSM_EDCA_SET(__edca, __queue, __aifs, __cw_min, __cw_max, __txop, __lifetime,\
- __uapsd) \
- do { \
- struct wsm_edca_queue_params *p = &(__edca)->params[__queue]; \
- p->cwmin = __cw_min; \
- p->cwmax = __cw_max; \
- p->aifns = __aifs; \
- p->txop_limit = ((__txop) * TXOP_UNIT); \
- p->max_rx_lifetime = __lifetime; \
- (__edca)->uapsd_enable[__queue] = (__uapsd); \
- } while (0)
-
-int wsm_set_edca_params(struct cw1200_common *priv,
- const struct wsm_edca_params *arg);
-
-int wsm_set_uapsd_param(struct cw1200_common *priv,
- const struct wsm_edca_params *arg);
-
-/* 3.38 */
-/* Set-System info. Skipped for now. Irrelevent. */
-
-/* 3.40 */
-#define WSM_SWITCH_CHANNEL_REQ_ID 0x0016
-#define WSM_SWITCH_CHANNEL_RESP_ID 0x0416
-
-struct wsm_switch_channel {
- /* 1 - means the STA shall not transmit any further */
- /* frames until the channel switch has completed */
- u8 mode;
-
- /* Number of TBTTs until channel switch occurs. */
- /* 0 - indicates switch shall occur at any time */
- /* 1 - occurs immediately before the next TBTT */
- u8 switch_count;
-
- /* The new channel number to switch to. */
- /* Note this is defined as per section 2.7. */
- u16 channel_number;
-};
-
-int wsm_switch_channel(struct cw1200_common *priv,
- const struct wsm_switch_channel *arg);
-
-typedef void (*wsm_channel_switch_cb) (struct cw1200_common *priv);
-
-#define WSM_START_REQ_ID 0x0017
-#define WSM_START_RESP_ID 0x0417
-
-struct wsm_start {
- /* WSM_START_MODE_... */
- /* [in] */ u8 mode;
-
- /* WSM_PHY_BAND_... */
- /* [in] */ u8 band;
-
- /* Channel number */
- /* [in] */ u16 channel_number;
-
- /* Client Traffic window in units of TU */
- /* Valid only when mode == ..._P2P */
- /* [in] */ u32 ct_window;
-
- /* Interval between two consecutive */
- /* beacon transmissions in TU. */
- /* [in] */ u32 beacon_interval;
-
- /* DTIM period in terms of beacon intervals */
- /* [in] */ u8 dtim_period;
-
- /* WSM_JOIN_PREAMBLE_... */
- /* [in] */ u8 preamble;
-
- /* The delay time (in microseconds) period */
- /* before sending a probe-request. */
- /* [in] */ u8 probe_delay;
-
- /* Length of the SSID */
- /* [in] */ u8 ssid_len;
-
- /* SSID of the BSS or P2P_GO to be started now. */
- /* [in] */ u8 ssid[32];
-
- /* The basic supported rates for the MiniAP. */
- /* [in] */ u32 basic_rate_set;
-};
-
-int wsm_start(struct cw1200_common *priv, const struct wsm_start *arg);
-
-#define WSM_BEACON_TRANSMIT_REQ_ID 0x0018
-#define WSM_BEACON_TRANSMIT_RESP_ID 0x0418
-
-struct wsm_beacon_transmit {
- /* 1: enable; 0: disable */
- /* [in] */ u8 enable_beaconing;
-};
-
-int wsm_beacon_transmit(struct cw1200_common *priv,
- const struct wsm_beacon_transmit *arg);
-
-int wsm_start_find(struct cw1200_common *priv);
-
-int wsm_stop_find(struct cw1200_common *priv);
-
-typedef void (*wsm_find_complete_cb) (struct cw1200_common *priv, u32 status);
-
-struct wsm_suspend_resume {
- /* See 3.52 */
- /* Link ID */
- /* [out] */ int link_id;
- /* Stop sending further Tx requests down to device for this link */
- /* [out] */ bool stop;
- /* Transmit multicast Frames */
- /* [out] */ bool multicast;
- /* The AC on which Tx to be suspended /resumed. */
- /* This is applicable only for U-APSD */
- /* WSM_QUEUE_... */
- /* [out] */ int queue;
-};
-
-typedef void (*wsm_suspend_resume_cb) (struct cw1200_common *priv,
- struct wsm_suspend_resume *arg);
-
-/* 3.54 Update-IE request. */
-struct wsm_update_ie {
- /* WSM_UPDATE_IE_... */
- /* [in] */ u16 what;
- /* [in] */ u16 count;
- /* [in] */ u8 *ies;
- /* [in] */ size_t length;
-};
-
-int wsm_update_ie(struct cw1200_common *priv,
- const struct wsm_update_ie *arg);
-
-/* 3.56 */
-struct wsm_map_link {
- /* MAC address of the remote device */
- /* [in] */ u8 mac_addr[6];
- /* [in] */ u8 link_id;
-};
-
-int wsm_map_link(struct cw1200_common *priv, const struct wsm_map_link *arg);
-
-/* ******************************************************************** */
-/* MIB shortcats */
-
-static inline int wsm_set_output_power(struct cw1200_common *priv,
- int power_level)
-{
- __le32 val = __cpu_to_le32(power_level);
- return wsm_write_mib(priv, WSM_MIB_ID_DOT11_CURRENT_TX_POWER_LEVEL,
- &val, sizeof(val));
-}
-
-static inline int wsm_set_beacon_wakeup_period(struct cw1200_common *priv,
- unsigned dtim_interval,
- unsigned listen_interval)
-{
- struct {
- u8 numBeaconPeriods;
- u8 reserved;
- __le16 listenInterval;
- } val = {
- dtim_interval, 0, __cpu_to_le16(listen_interval)
- };
-
- if (dtim_interval > 0xFF || listen_interval > 0xFFFF)
- return -EINVAL;
- else
- return wsm_write_mib(priv, WSM_MIB_ID_BEACON_WAKEUP_PERIOD,
- &val, sizeof(val));
-}
-
-struct wsm_rcpi_rssi_threshold {
- u8 rssiRcpiMode; /* WSM_RCPI_RSSI_... */
- u8 lowerThreshold;
- u8 upperThreshold;
- u8 rollingAverageCount;
-};
-
-static inline int wsm_set_rcpi_rssi_threshold(struct cw1200_common *priv,
- struct wsm_rcpi_rssi_threshold *arg)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_RCPI_RSSI_THRESHOLD, arg,
- sizeof(*arg));
-}
-
-struct wsm_mib_counters_table {
- __le32 plcp_errors;
- __le32 fcs_errors;
- __le32 tx_packets;
- __le32 rx_packets;
- __le32 rx_packet_errors;
- __le32 rx_decryption_failures;
- __le32 rx_mic_failures;
- __le32 rx_no_key_failures;
- __le32 tx_multicast_frames;
- __le32 tx_frames_success;
- __le32 tx_frame_failures;
- __le32 tx_frames_retried;
- __le32 tx_frames_multi_retried;
- __le32 rx_frame_duplicates;
- __le32 rts_success;
- __le32 rts_failures;
- __le32 ack_failures;
- __le32 rx_multicast_frames;
- __le32 rx_frames_success;
- __le32 rx_cmac_icv_errors;
- __le32 rx_cmac_replays;
- __le32 rx_mgmt_ccmp_replays;
-} __packed;
-
-static inline int wsm_get_counters_table(struct cw1200_common *priv,
- struct wsm_mib_counters_table *arg)
-{
- return wsm_read_mib(priv, WSM_MIB_ID_COUNTERS_TABLE,
- arg, sizeof(*arg));
-}
-
-static inline int wsm_get_station_id(struct cw1200_common *priv, u8 *mac)
-{
- return wsm_read_mib(priv, WSM_MIB_ID_DOT11_STATION_ID, mac, ETH_ALEN);
-}
-
-struct wsm_rx_filter {
- bool promiscuous;
- bool bssid;
- bool fcs;
- bool probeResponder;
-};
-
-static inline int wsm_set_rx_filter(struct cw1200_common *priv,
- const struct wsm_rx_filter *arg)
-{
- __le32 val = 0;
- if (arg->promiscuous)
- val |= __cpu_to_le32(BIT(0));
- if (arg->bssid)
- val |= __cpu_to_le32(BIT(1));
- if (arg->fcs)
- val |= __cpu_to_le32(BIT(2));
- if (arg->probeResponder)
- val |= __cpu_to_le32(BIT(3));
- return wsm_write_mib(priv, WSM_MIB_ID_RX_FILTER, &val, sizeof(val));
-}
-
-int wsm_set_probe_responder(struct cw1200_common *priv, bool enable);
-
-#define WSM_BEACON_FILTER_IE_HAS_CHANGED BIT(0)
-#define WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT BIT(1)
-#define WSM_BEACON_FILTER_IE_HAS_APPEARED BIT(2)
-
-struct wsm_beacon_filter_table_entry {
- u8 ie_id;
- u8 flags;
- u8 oui[3];
- u8 match_data[3];
-} __packed;
-
-struct wsm_mib_beacon_filter_table {
- __le32 num;
- struct wsm_beacon_filter_table_entry entry[10];
-} __packed;
-
-static inline int wsm_set_beacon_filter_table(struct cw1200_common *priv,
- struct wsm_mib_beacon_filter_table *ft)
-{
- size_t size = __le32_to_cpu(ft->num) *
- sizeof(struct wsm_beacon_filter_table_entry) +
- sizeof(__le32);
-
- return wsm_write_mib(priv, WSM_MIB_ID_BEACON_FILTER_TABLE, ft, size);
-}
-
-#define WSM_BEACON_FILTER_ENABLE BIT(0) /* Enable/disable beacon filtering */
-#define WSM_BEACON_FILTER_AUTO_ERP BIT(1) /* If 1 FW will handle ERP IE changes internally */
-
-struct wsm_beacon_filter_control {
- int enabled;
- int bcn_count;
-};
-
-static inline int wsm_beacon_filter_control(struct cw1200_common *priv,
- struct wsm_beacon_filter_control *arg)
-{
- struct {
- __le32 enabled;
- __le32 bcn_count;
- } val;
- val.enabled = __cpu_to_le32(arg->enabled);
- val.bcn_count = __cpu_to_le32(arg->bcn_count);
- return wsm_write_mib(priv, WSM_MIB_ID_BEACON_FILTER_ENABLE, &val,
- sizeof(val));
-}
-
-enum wsm_power_mode {
- wsm_power_mode_active = 0,
- wsm_power_mode_doze = 1,
- wsm_power_mode_quiescent = 2,
-};
-
-struct wsm_operational_mode {
- enum wsm_power_mode power_mode;
- int disable_more_flag_usage;
- int perform_ant_diversity;
-};
-
-static inline int wsm_set_operational_mode(struct cw1200_common *priv,
- const struct wsm_operational_mode *arg)
-{
- u8 val = arg->power_mode;
- if (arg->disable_more_flag_usage)
- val |= BIT(4);
- if (arg->perform_ant_diversity)
- val |= BIT(5);
- return wsm_write_mib(priv, WSM_MIB_ID_OPERATIONAL_POWER_MODE, &val,
- sizeof(val));
-}
-
-struct wsm_template_frame {
- u8 frame_type;
- u8 rate;
- struct sk_buff *skb;
-};
-
-static inline int wsm_set_template_frame(struct cw1200_common *priv,
- struct wsm_template_frame *arg)
-{
- int ret;
- u8 *p = skb_push(arg->skb, 4);
- p[0] = arg->frame_type;
- p[1] = arg->rate;
- ((__le16 *)p)[1] = __cpu_to_le16(arg->skb->len - 4);
- ret = wsm_write_mib(priv, WSM_MIB_ID_TEMPLATE_FRAME, p, arg->skb->len);
- skb_pull(arg->skb, 4);
- return ret;
-}
-
-
-struct wsm_protected_mgmt_policy {
- bool protectedMgmtEnable;
- bool unprotectedMgmtFramesAllowed;
- bool encryptionForAuthFrame;
-};
-
-static inline int wsm_set_protected_mgmt_policy(struct cw1200_common *priv,
- struct wsm_protected_mgmt_policy *arg)
-{
- __le32 val = 0;
- int ret;
- if (arg->protectedMgmtEnable)
- val |= __cpu_to_le32(BIT(0));
- if (arg->unprotectedMgmtFramesAllowed)
- val |= __cpu_to_le32(BIT(1));
- if (arg->encryptionForAuthFrame)
- val |= __cpu_to_le32(BIT(2));
- ret = wsm_write_mib(priv, WSM_MIB_ID_PROTECTED_MGMT_POLICY,
- &val, sizeof(val));
- return ret;
-}
-
-struct wsm_mib_block_ack_policy {
- u8 tx_tid;
- u8 reserved1;
- u8 rx_tid;
- u8 reserved2;
-} __packed;
-
-static inline int wsm_set_block_ack_policy(struct cw1200_common *priv,
- u8 tx_tid_policy,
- u8 rx_tid_policy)
-{
- struct wsm_mib_block_ack_policy val = {
- .tx_tid = tx_tid_policy,
- .rx_tid = rx_tid_policy,
- };
- return wsm_write_mib(priv, WSM_MIB_ID_BLOCK_ACK_POLICY, &val,
- sizeof(val));
-}
-
-struct wsm_mib_association_mode {
- u8 flags; /* WSM_ASSOCIATION_MODE_... */
- u8 preamble; /* WSM_JOIN_PREAMBLE_... */
- u8 greenfield; /* 1 for greenfield */
- u8 mpdu_start_spacing;
- __le32 basic_rate_set;
-} __packed;
-
-static inline int wsm_set_association_mode(struct cw1200_common *priv,
- struct wsm_mib_association_mode *arg)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_SET_ASSOCIATION_MODE, arg,
- sizeof(*arg));
-}
-
-#define WSM_TX_RATE_POLICY_FLAG_TERMINATE_WHEN_FINISHED BIT(2)
-#define WSM_TX_RATE_POLICY_FLAG_COUNT_INITIAL_TRANSMIT BIT(3)
-struct wsm_tx_rate_retry_policy {
- u8 index;
- u8 short_retries;
- u8 long_retries;
- /* BIT(2) - Terminate retries when Tx rate retry policy
- * finishes.
- * BIT(3) - Count initial frame transmission as part of
- * rate retry counting but not as a retry
- * attempt
- */
- u8 flags;
- u8 rate_recoveries;
- u8 reserved[3];
- __le32 rate_count_indices[3];
-} __packed;
-
-struct wsm_set_tx_rate_retry_policy {
- u8 num;
- u8 reserved[3];
- struct wsm_tx_rate_retry_policy tbl[8];
-} __packed;
-
-static inline int wsm_set_tx_rate_retry_policy(struct cw1200_common *priv,
- struct wsm_set_tx_rate_retry_policy *arg)
-{
- size_t size = 4 + arg->num * sizeof(struct wsm_tx_rate_retry_policy);
- return wsm_write_mib(priv, WSM_MIB_ID_SET_TX_RATE_RETRY_POLICY, arg,
- size);
-}
-
-/* 4.32 SetEtherTypeDataFrameFilter */
-struct wsm_ether_type_filter_hdr {
- u8 num; /* Up to WSM_MAX_FILTER_ELEMENTS */
- u8 reserved[3];
-} __packed;
-
-struct wsm_ether_type_filter {
- u8 action; /* WSM_FILTER_ACTION_XXX */
- u8 reserved;
- __le16 type; /* Type of ethernet frame */
-} __packed;
-
-static inline int wsm_set_ether_type_filter(struct cw1200_common *priv,
- struct wsm_ether_type_filter_hdr *arg)
-{
- size_t size = sizeof(struct wsm_ether_type_filter_hdr) +
- arg->num * sizeof(struct wsm_ether_type_filter);
- return wsm_write_mib(priv, WSM_MIB_ID_SET_ETHERTYPE_DATAFRAME_FILTER,
- arg, size);
-}
-
-/* 4.33 SetUDPPortDataFrameFilter */
-struct wsm_udp_port_filter_hdr {
- u8 num; /* Up to WSM_MAX_FILTER_ELEMENTS */
- u8 reserved[3];
-} __packed;
-
-struct wsm_udp_port_filter {
- u8 action; /* WSM_FILTER_ACTION_XXX */
- u8 type; /* WSM_FILTER_PORT_TYPE_XXX */
- __le16 port; /* Port number */
-} __packed;
-
-static inline int wsm_set_udp_port_filter(struct cw1200_common *priv,
- struct wsm_udp_port_filter_hdr *arg)
-{
- size_t size = sizeof(struct wsm_udp_port_filter_hdr) +
- arg->num * sizeof(struct wsm_udp_port_filter);
- return wsm_write_mib(priv, WSM_MIB_ID_SET_UDPPORT_DATAFRAME_FILTER,
- arg, size);
-}
-
-/* Undocumented MIBs: */
-/* 4.35 P2PDeviceInfo */
-#define D11_MAX_SSID_LEN (32)
-
-struct wsm_p2p_device_type {
- __le16 category_id;
- u8 oui[4];
- __le16 subcategory_id;
-} __packed;
-
-struct wsm_p2p_device_info {
- struct wsm_p2p_device_type primaryDevice;
- u8 reserved1[3];
- u8 devname_size;
- u8 local_devname[D11_MAX_SSID_LEN];
- u8 reserved2[3];
- u8 num_secdev_supported;
- struct wsm_p2p_device_type secdevs[0];
-} __packed;
-
-/* 4.36 SetWCDMABand - WO */
-struct wsm_cdma_band {
- u8 wcdma_band;
- u8 reserved[3];
-} __packed;
-
-/* 4.37 GroupTxSequenceCounter - RO */
-struct wsm_group_tx_seq {
- __le32 bits_47_16;
- __le16 bits_15_00;
- __le16 reserved;
-} __packed;
-
-/* 4.39 SetHtProtection - WO */
-#define WSM_DUAL_CTS_PROT_ENB (1 << 0)
-#define WSM_NON_GREENFIELD_STA_PRESENT (1 << 1)
-#define WSM_HT_PROT_MODE__NO_PROT (0 << 2)
-#define WSM_HT_PROT_MODE__NON_MEMBER (1 << 2)
-#define WSM_HT_PROT_MODE__20_MHZ (2 << 2)
-#define WSM_HT_PROT_MODE__NON_HT_MIXED (3 << 2)
-#define WSM_LSIG_TXOP_PROT_FULL (1 << 4)
-#define WSM_LARGE_L_LENGTH_PROT (1 << 5)
-
-struct wsm_ht_protection {
- __le32 flags;
-} __packed;
-
-/* 4.40 GPIO Command - R/W */
-#define WSM_GPIO_COMMAND_SETUP 0
-#define WSM_GPIO_COMMAND_READ 1
-#define WSM_GPIO_COMMAND_WRITE 2
-#define WSM_GPIO_COMMAND_RESET 3
-#define WSM_GPIO_ALL_PINS 0xFF
-
-struct wsm_gpio_command {
- u8 command;
- u8 pin;
- __le16 config;
-} __packed;
-
-/* 4.41 TSFCounter - RO */
-struct wsm_tsf_counter {
- __le64 tsf_counter;
-} __packed;
-
-/* 4.43 Keep alive period */
-struct wsm_keep_alive_period {
- __le16 period;
- u8 reserved[2];
-} __packed;
-
-static inline int wsm_keep_alive_period(struct cw1200_common *priv,
- int period)
-{
- struct wsm_keep_alive_period arg = {
- .period = __cpu_to_le16(period),
- };
- return wsm_write_mib(priv, WSM_MIB_ID_KEEP_ALIVE_PERIOD,
- &arg, sizeof(arg));
-};
-
-/* BSSID filtering */
-struct wsm_set_bssid_filtering {
- u8 filter;
- u8 reserved[3];
-} __packed;
-
-static inline int wsm_set_bssid_filtering(struct cw1200_common *priv,
- bool enabled)
-{
- struct wsm_set_bssid_filtering arg = {
- .filter = !enabled,
- };
- return wsm_write_mib(priv, WSM_MIB_ID_DISABLE_BSSID_FILTER,
- &arg, sizeof(arg));
-}
-
-/* Multicast filtering - 4.5 */
-struct wsm_mib_multicast_filter {
- __le32 enable;
- __le32 num_addrs;
- u8 macaddrs[WSM_MAX_GRP_ADDRTABLE_ENTRIES][ETH_ALEN];
-} __packed;
-
-static inline int wsm_set_multicast_filter(struct cw1200_common *priv,
- struct wsm_mib_multicast_filter *fp)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_DOT11_GROUP_ADDRESSES_TABLE,
- fp, sizeof(*fp));
-}
-
-/* ARP IPv4 filtering - 4.10 */
-struct wsm_mib_arp_ipv4_filter {
- __le32 enable;
- __be32 ipv4addrs[WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES];
-} __packed;
-
-static inline int wsm_set_arp_ipv4_filter(struct cw1200_common *priv,
- struct wsm_mib_arp_ipv4_filter *fp)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_ARP_IP_ADDRESSES_TABLE,
- fp, sizeof(*fp));
-}
-
-/* P2P Power Save Mode Info - 4.31 */
-struct wsm_p2p_ps_modeinfo {
- u8 opp_ps_ct_window;
- u8 count;
- u8 reserved;
- u8 dtim_count;
- __le32 duration;
- __le32 interval;
- __le32 start_time;
-} __packed;
-
-static inline int wsm_set_p2p_ps_modeinfo(struct cw1200_common *priv,
- struct wsm_p2p_ps_modeinfo *mi)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_P2P_PS_MODE_INFO,
- mi, sizeof(*mi));
-}
-
-static inline int wsm_get_p2p_ps_modeinfo(struct cw1200_common *priv,
- struct wsm_p2p_ps_modeinfo *mi)
-{
- return wsm_read_mib(priv, WSM_MIB_ID_P2P_PS_MODE_INFO,
- mi, sizeof(*mi));
-}
-
-/* UseMultiTxConfMessage */
-
-static inline int wsm_use_multi_tx_conf(struct cw1200_common *priv,
- bool enabled)
-{
- __le32 arg = enabled ? __cpu_to_le32(1) : 0;
-
- return wsm_write_mib(priv, WSM_MIB_USE_MULTI_TX_CONF,
- &arg, sizeof(arg));
-}
-
-
-/* 4.26 SetUpasdInformation */
-struct wsm_uapsd_info {
- __le16 uapsd_flags;
- __le16 min_auto_trigger_interval;
- __le16 max_auto_trigger_interval;
- __le16 auto_trigger_step;
-};
-
-static inline int wsm_set_uapsd_info(struct cw1200_common *priv,
- struct wsm_uapsd_info *arg)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_SET_UAPSD_INFORMATION,
- arg, sizeof(*arg));
-}
-
-/* 4.22 OverrideInternalTxRate */
-struct wsm_override_internal_txrate {
- u8 internalTxRate;
- u8 nonErpInternalTxRate;
- u8 reserved[2];
-} __packed;
-
-static inline int wsm_set_override_internal_txrate(struct cw1200_common *priv,
- struct wsm_override_internal_txrate *arg)
-{
- return wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE,
- arg, sizeof(*arg));
-}
-
-/* ******************************************************************** */
-/* WSM TX port control */
-
-void wsm_lock_tx(struct cw1200_common *priv);
-void wsm_lock_tx_async(struct cw1200_common *priv);
-bool wsm_flush_tx(struct cw1200_common *priv);
-void wsm_unlock_tx(struct cw1200_common *priv);
-
-/* ******************************************************************** */
-/* WSM / BH API */
-
-int wsm_handle_exception(struct cw1200_common *priv, u8 *data, size_t len);
-int wsm_handle_rx(struct cw1200_common *priv, u16 id, struct wsm_hdr *wsm,
- struct sk_buff **skb_p);
-
-/* ******************************************************************** */
-/* wsm_buf API */
-
-struct wsm_buf {
- u8 *begin;
- u8 *data;
- u8 *end;
-};
-
-void wsm_buf_init(struct wsm_buf *buf);
-void wsm_buf_deinit(struct wsm_buf *buf);
-
-/* ******************************************************************** */
-/* wsm_cmd API */
-
-struct wsm_cmd {
- spinlock_t lock; /* Protect structure from multiple access */
- int done;
- u8 *ptr;
- size_t len;
- void *arg;
- int ret;
- u16 cmd;
-};
-
-/* ******************************************************************** */
-/* WSM TX buffer access */
-
-int wsm_get_tx(struct cw1200_common *priv, u8 **data,
- size_t *tx_len, int *burst);
-void wsm_txed(struct cw1200_common *priv, u8 *data);
-
-/* ******************************************************************** */
-/* Queue mapping: WSM <---> linux */
-/* Linux: VO VI BE BK */
-/* WSM: BE BK VI VO */
-
-static inline u8 wsm_queue_id_to_linux(u8 queue_id)
-{
- static const u8 queue_mapping[] = {
- 2, 3, 1, 0
- };
- return queue_mapping[queue_id];
-}
-
-static inline u8 wsm_queue_id_to_wsm(u8 queue_id)
-{
- static const u8 queue_mapping[] = {
- 3, 2, 0, 1
- };
- return queue_mapping[queue_id];
-}
-
-#endif /* CW1200_HWIO_H_INCLUDED */
--- /dev/null
+config WLAN_VENDOR_ST
+ bool "STMicroelectronics devices"
+ default y
+ ---help---
+ If you have a wireless card belonging to this class, say Y.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about cards. If you say Y, you will be asked for
+ your specific card in the following questions.
+
+if WLAN_VENDOR_ST
+
+source "drivers/net/wireless/st/cw1200/Kconfig"
+
+endif # WLAN_VENDOR_ST
--- /dev/null
+obj-$(CONFIG_CW1200) += cw1200/
--- /dev/null
+config CW1200
+ tristate "CW1200 WLAN support"
+ depends on MAC80211 && CFG80211
+ help
+ This is a driver for the ST-E CW1100 & CW1200 WLAN chipsets.
+ This option just enables the driver core, see below for
+ specific bus support.
+
+if CW1200
+
+config CW1200_WLAN_SDIO
+ tristate "Support SDIO platforms"
+ depends on CW1200 && MMC
+ help
+ Enable support for the CW1200 connected via an SDIO bus.
+ By default this driver only supports the Sagrad SG901-1091/1098 EVK
+ and similar designs that utilize a hardware reset circuit. To
+ support different CW1200 SDIO designs you will need to override
+ the default platform data by calling cw1200_sdio_set_platform_data()
+ in your board setup file.
+
+config CW1200_WLAN_SPI
+ tristate "Support SPI platforms"
+ depends on CW1200 && SPI
+ help
+ Enables support for the CW1200 connected via a SPI bus. You will
+ need to add appropriate platform data glue in your board setup
+ file.
+
+endif
--- /dev/null
+cw1200_core-y := \
+ fwio.o \
+ txrx.o \
+ main.o \
+ queue.o \
+ hwio.o \
+ bh.o \
+ wsm.o \
+ sta.o \
+ scan.o \
+ debug.o
+cw1200_core-$(CONFIG_PM) += pm.o
+
+# CFLAGS_sta.o += -DDEBUG
+
+cw1200_wlan_sdio-y := cw1200_sdio.o
+cw1200_wlan_spi-y := cw1200_spi.o
+
+obj-$(CONFIG_CW1200) += cw1200_core.o
+obj-$(CONFIG_CW1200_WLAN_SDIO) += cw1200_wlan_sdio.o
+obj-$(CONFIG_CW1200_WLAN_SPI) += cw1200_wlan_spi.o
--- /dev/null
+/*
+ * Device handling thread implementation for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver, which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <net/mac80211.h>
+#include <linux/kthread.h>
+#include <linux/timer.h>
+
+#include "cw1200.h"
+#include "bh.h"
+#include "hwio.h"
+#include "wsm.h"
+#include "hwbus.h"
+#include "debug.h"
+#include "fwio.h"
+
+static int cw1200_bh(void *arg);
+
+#define DOWNLOAD_BLOCK_SIZE_WR (0x1000 - 4)
+/* an SPI message cannot be bigger than (2"12-1)*2 bytes
+ * "*2" to cvt to bytes
+ */
+#define MAX_SZ_RD_WR_BUFFERS (DOWNLOAD_BLOCK_SIZE_WR*2)
+#define PIGGYBACK_CTRL_REG (2)
+#define EFFECTIVE_BUF_SIZE (MAX_SZ_RD_WR_BUFFERS - PIGGYBACK_CTRL_REG)
+
+/* Suspend state privates */
+enum cw1200_bh_pm_state {
+ CW1200_BH_RESUMED = 0,
+ CW1200_BH_SUSPEND,
+ CW1200_BH_SUSPENDED,
+ CW1200_BH_RESUME,
+};
+
+typedef int (*cw1200_wsm_handler)(struct cw1200_common *priv,
+ u8 *data, size_t size);
+
+static void cw1200_bh_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, bh_work);
+ cw1200_bh(priv);
+}
+
+int cw1200_register_bh(struct cw1200_common *priv)
+{
+ int err = 0;
+ /* Realtime workqueue */
+ priv->bh_workqueue = alloc_workqueue("cw1200_bh",
+ WQ_MEM_RECLAIM | WQ_HIGHPRI
+ | WQ_CPU_INTENSIVE, 1);
+
+ if (!priv->bh_workqueue)
+ return -ENOMEM;
+
+ INIT_WORK(&priv->bh_work, cw1200_bh_work);
+
+ pr_debug("[BH] register.\n");
+
+ atomic_set(&priv->bh_rx, 0);
+ atomic_set(&priv->bh_tx, 0);
+ atomic_set(&priv->bh_term, 0);
+ atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
+ priv->bh_error = 0;
+ priv->hw_bufs_used = 0;
+ priv->buf_id_tx = 0;
+ priv->buf_id_rx = 0;
+ init_waitqueue_head(&priv->bh_wq);
+ init_waitqueue_head(&priv->bh_evt_wq);
+
+ err = !queue_work(priv->bh_workqueue, &priv->bh_work);
+ WARN_ON(err);
+ return err;
+}
+
+void cw1200_unregister_bh(struct cw1200_common *priv)
+{
+ atomic_add(1, &priv->bh_term);
+ wake_up(&priv->bh_wq);
+
+ flush_workqueue(priv->bh_workqueue);
+
+ destroy_workqueue(priv->bh_workqueue);
+ priv->bh_workqueue = NULL;
+
+ pr_debug("[BH] unregistered.\n");
+}
+
+void cw1200_irq_handler(struct cw1200_common *priv)
+{
+ pr_debug("[BH] irq.\n");
+
+ /* Disable Interrupts! */
+ /* NOTE: hwbus_ops->lock already held */
+ __cw1200_irq_enable(priv, 0);
+
+ if (/* WARN_ON */(priv->bh_error))
+ return;
+
+ if (atomic_add_return(1, &priv->bh_rx) == 1)
+ wake_up(&priv->bh_wq);
+}
+EXPORT_SYMBOL_GPL(cw1200_irq_handler);
+
+void cw1200_bh_wakeup(struct cw1200_common *priv)
+{
+ pr_debug("[BH] wakeup.\n");
+ if (priv->bh_error) {
+ pr_err("[BH] wakeup failed (BH error)\n");
+ return;
+ }
+
+ if (atomic_add_return(1, &priv->bh_tx) == 1)
+ wake_up(&priv->bh_wq);
+}
+
+int cw1200_bh_suspend(struct cw1200_common *priv)
+{
+ pr_debug("[BH] suspend.\n");
+ if (priv->bh_error) {
+ wiphy_warn(priv->hw->wiphy, "BH error -- can't suspend\n");
+ return -EINVAL;
+ }
+
+ atomic_set(&priv->bh_suspend, CW1200_BH_SUSPEND);
+ wake_up(&priv->bh_wq);
+ return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
+ (CW1200_BH_SUSPENDED == atomic_read(&priv->bh_suspend)),
+ 1 * HZ) ? 0 : -ETIMEDOUT;
+}
+
+int cw1200_bh_resume(struct cw1200_common *priv)
+{
+ pr_debug("[BH] resume.\n");
+ if (priv->bh_error) {
+ wiphy_warn(priv->hw->wiphy, "BH error -- can't resume\n");
+ return -EINVAL;
+ }
+
+ atomic_set(&priv->bh_suspend, CW1200_BH_RESUME);
+ wake_up(&priv->bh_wq);
+ return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
+ (CW1200_BH_RESUMED == atomic_read(&priv->bh_suspend)),
+ 1 * HZ) ? 0 : -ETIMEDOUT;
+}
+
+static inline void wsm_alloc_tx_buffer(struct cw1200_common *priv)
+{
+ ++priv->hw_bufs_used;
+}
+
+int wsm_release_tx_buffer(struct cw1200_common *priv, int count)
+{
+ int ret = 0;
+ int hw_bufs_used = priv->hw_bufs_used;
+
+ priv->hw_bufs_used -= count;
+ if (WARN_ON(priv->hw_bufs_used < 0))
+ ret = -1;
+ else if (hw_bufs_used >= priv->wsm_caps.input_buffers)
+ ret = 1;
+ if (!priv->hw_bufs_used)
+ wake_up(&priv->bh_evt_wq);
+ return ret;
+}
+
+static int cw1200_bh_read_ctrl_reg(struct cw1200_common *priv,
+ u16 *ctrl_reg)
+{
+ int ret;
+
+ ret = cw1200_reg_read_16(priv,
+ ST90TDS_CONTROL_REG_ID, ctrl_reg);
+ if (ret) {
+ ret = cw1200_reg_read_16(priv,
+ ST90TDS_CONTROL_REG_ID, ctrl_reg);
+ if (ret)
+ pr_err("[BH] Failed to read control register.\n");
+ }
+
+ return ret;
+}
+
+static int cw1200_device_wakeup(struct cw1200_common *priv)
+{
+ u16 ctrl_reg;
+ int ret;
+
+ pr_debug("[BH] Device wakeup.\n");
+
+ /* First, set the dpll register */
+ ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
+ cw1200_dpll_from_clk(priv->hw_refclk));
+ if (WARN_ON(ret))
+ return ret;
+
+ /* To force the device to be always-on, the host sets WLAN_UP to 1 */
+ ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
+ ST90TDS_CONT_WUP_BIT);
+ if (WARN_ON(ret))
+ return ret;
+
+ ret = cw1200_bh_read_ctrl_reg(priv, &ctrl_reg);
+ if (WARN_ON(ret))
+ return ret;
+
+ /* If the device returns WLAN_RDY as 1, the device is active and will
+ * remain active.
+ */
+ if (ctrl_reg & ST90TDS_CONT_RDY_BIT) {
+ pr_debug("[BH] Device awake.\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Must be called from BH thraed. */
+void cw1200_enable_powersave(struct cw1200_common *priv,
+ bool enable)
+{
+ pr_debug("[BH] Powerave is %s.\n",
+ enable ? "enabled" : "disabled");
+ priv->powersave_enabled = enable;
+}
+
+static int cw1200_bh_rx_helper(struct cw1200_common *priv,
+ uint16_t *ctrl_reg,
+ int *tx)
+{
+ size_t read_len = 0;
+ struct sk_buff *skb_rx = NULL;
+ struct wsm_hdr *wsm;
+ size_t wsm_len;
+ u16 wsm_id;
+ u8 wsm_seq;
+ int rx_resync = 1;
+
+ size_t alloc_len;
+ u8 *data;
+
+ read_len = (*ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) * 2;
+ if (!read_len)
+ return 0; /* No more work */
+
+ if (WARN_ON((read_len < sizeof(struct wsm_hdr)) ||
+ (read_len > EFFECTIVE_BUF_SIZE))) {
+ pr_debug("Invalid read len: %zu (%04x)",
+ read_len, *ctrl_reg);
+ goto err;
+ }
+
+ /* Add SIZE of PIGGYBACK reg (CONTROL Reg)
+ * to the NEXT Message length + 2 Bytes for SKB
+ */
+ read_len = read_len + 2;
+
+ alloc_len = priv->hwbus_ops->align_size(
+ priv->hwbus_priv, read_len);
+
+ /* Check if not exceeding CW1200 capabilities */
+ if (WARN_ON_ONCE(alloc_len > EFFECTIVE_BUF_SIZE)) {
+ pr_debug("Read aligned len: %zu\n",
+ alloc_len);
+ }
+
+ skb_rx = dev_alloc_skb(alloc_len);
+ if (WARN_ON(!skb_rx))
+ goto err;
+
+ skb_trim(skb_rx, 0);
+ skb_put(skb_rx, read_len);
+ data = skb_rx->data;
+ if (WARN_ON(!data))
+ goto err;
+
+ if (WARN_ON(cw1200_data_read(priv, data, alloc_len))) {
+ pr_err("rx blew up, len %zu\n", alloc_len);
+ goto err;
+ }
+
+ /* Piggyback */
+ *ctrl_reg = __le16_to_cpu(
+ ((__le16 *)data)[alloc_len / 2 - 1]);
+
+ wsm = (struct wsm_hdr *)data;
+ wsm_len = __le16_to_cpu(wsm->len);
+ if (WARN_ON(wsm_len > read_len))
+ goto err;
+
+ if (priv->wsm_enable_wsm_dumps)
+ print_hex_dump_bytes("<-- ",
+ DUMP_PREFIX_NONE,
+ data, wsm_len);
+
+ wsm_id = __le16_to_cpu(wsm->id) & 0xFFF;
+ wsm_seq = (__le16_to_cpu(wsm->id) >> 13) & 7;
+
+ skb_trim(skb_rx, wsm_len);
+
+ if (wsm_id == 0x0800) {
+ wsm_handle_exception(priv,
+ &data[sizeof(*wsm)],
+ wsm_len - sizeof(*wsm));
+ goto err;
+ } else if (!rx_resync) {
+ if (WARN_ON(wsm_seq != priv->wsm_rx_seq))
+ goto err;
+ }
+ priv->wsm_rx_seq = (wsm_seq + 1) & 7;
+ rx_resync = 0;
+
+ if (wsm_id & 0x0400) {
+ int rc = wsm_release_tx_buffer(priv, 1);
+ if (WARN_ON(rc < 0))
+ return rc;
+ else if (rc > 0)
+ *tx = 1;
+ }
+
+ /* cw1200_wsm_rx takes care on SKB livetime */
+ if (WARN_ON(wsm_handle_rx(priv, wsm_id, wsm, &skb_rx)))
+ goto err;
+
+ if (skb_rx) {
+ dev_kfree_skb(skb_rx);
+ skb_rx = NULL;
+ }
+
+ return 0;
+
+err:
+ if (skb_rx) {
+ dev_kfree_skb(skb_rx);
+ skb_rx = NULL;
+ }
+ return -1;
+}
+
+static int cw1200_bh_tx_helper(struct cw1200_common *priv,
+ int *pending_tx,
+ int *tx_burst)
+{
+ size_t tx_len;
+ u8 *data;
+ int ret;
+ struct wsm_hdr *wsm;
+
+ if (priv->device_can_sleep) {
+ ret = cw1200_device_wakeup(priv);
+ if (WARN_ON(ret < 0)) { /* Error in wakeup */
+ *pending_tx = 1;
+ return 0;
+ } else if (ret) { /* Woke up */
+ priv->device_can_sleep = false;
+ } else { /* Did not awake */
+ *pending_tx = 1;
+ return 0;
+ }
+ }
+
+ wsm_alloc_tx_buffer(priv);
+ ret = wsm_get_tx(priv, &data, &tx_len, tx_burst);
+ if (ret <= 0) {
+ wsm_release_tx_buffer(priv, 1);
+ if (WARN_ON(ret < 0))
+ return ret; /* Error */
+ return 0; /* No work */
+ }
+
+ wsm = (struct wsm_hdr *)data;
+ BUG_ON(tx_len < sizeof(*wsm));
+ BUG_ON(__le16_to_cpu(wsm->len) != tx_len);
+
+ atomic_add(1, &priv->bh_tx);
+
+ tx_len = priv->hwbus_ops->align_size(
+ priv->hwbus_priv, tx_len);
+
+ /* Check if not exceeding CW1200 capabilities */
+ if (WARN_ON_ONCE(tx_len > EFFECTIVE_BUF_SIZE))
+ pr_debug("Write aligned len: %zu\n", tx_len);
+
+ wsm->id &= __cpu_to_le16(0xffff ^ WSM_TX_SEQ(WSM_TX_SEQ_MAX));
+ wsm->id |= __cpu_to_le16(WSM_TX_SEQ(priv->wsm_tx_seq));
+
+ if (WARN_ON(cw1200_data_write(priv, data, tx_len))) {
+ pr_err("tx blew up, len %zu\n", tx_len);
+ wsm_release_tx_buffer(priv, 1);
+ return -1; /* Error */
+ }
+
+ if (priv->wsm_enable_wsm_dumps)
+ print_hex_dump_bytes("--> ",
+ DUMP_PREFIX_NONE,
+ data,
+ __le16_to_cpu(wsm->len));
+
+ wsm_txed(priv, data);
+ priv->wsm_tx_seq = (priv->wsm_tx_seq + 1) & WSM_TX_SEQ_MAX;
+
+ if (*tx_burst > 1) {
+ cw1200_debug_tx_burst(priv);
+ return 1; /* Work remains */
+ }
+
+ return 0;
+}
+
+static int cw1200_bh(void *arg)
+{
+ struct cw1200_common *priv = arg;
+ int rx, tx, term, suspend;
+ u16 ctrl_reg = 0;
+ int tx_allowed;
+ int pending_tx = 0;
+ int tx_burst;
+ long status;
+ u32 dummy;
+ int ret;
+
+ for (;;) {
+ if (!priv->hw_bufs_used &&
+ priv->powersave_enabled &&
+ !priv->device_can_sleep &&
+ !atomic_read(&priv->recent_scan)) {
+ status = 1 * HZ;
+ pr_debug("[BH] Device wakedown. No data.\n");
+ cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID, 0);
+ priv->device_can_sleep = true;
+ } else if (priv->hw_bufs_used) {
+ /* Interrupt loss detection */
+ status = 1 * HZ;
+ } else {
+ status = MAX_SCHEDULE_TIMEOUT;
+ }
+
+ /* Dummy Read for SDIO retry mechanism*/
+ if ((priv->hw_type != -1) &&
+ (atomic_read(&priv->bh_rx) == 0) &&
+ (atomic_read(&priv->bh_tx) == 0))
+ cw1200_reg_read(priv, ST90TDS_CONFIG_REG_ID,
+ &dummy, sizeof(dummy));
+
+ pr_debug("[BH] waiting ...\n");
+ status = wait_event_interruptible_timeout(priv->bh_wq, ({
+ rx = atomic_xchg(&priv->bh_rx, 0);
+ tx = atomic_xchg(&priv->bh_tx, 0);
+ term = atomic_xchg(&priv->bh_term, 0);
+ suspend = pending_tx ?
+ 0 : atomic_read(&priv->bh_suspend);
+ (rx || tx || term || suspend || priv->bh_error);
+ }), status);
+
+ pr_debug("[BH] - rx: %d, tx: %d, term: %d, bh_err: %d, suspend: %d, status: %ld\n",
+ rx, tx, term, suspend, priv->bh_error, status);
+
+ /* Did an error occur? */
+ if ((status < 0 && status != -ERESTARTSYS) ||
+ term || priv->bh_error) {
+ break;
+ }
+ if (!status) { /* wait_event timed out */
+ unsigned long timestamp = jiffies;
+ long timeout;
+ int pending = 0;
+ int i;
+
+ /* Check to see if we have any outstanding frames */
+ if (priv->hw_bufs_used && (!rx || !tx)) {
+ wiphy_warn(priv->hw->wiphy,
+ "Missed interrupt? (%d frames outstanding)\n",
+ priv->hw_bufs_used);
+ rx = 1;
+
+ /* Get a timestamp of "oldest" frame */
+ for (i = 0; i < 4; ++i)
+ pending += cw1200_queue_get_xmit_timestamp(
+ &priv->tx_queue[i],
+ ×tamp,
+ priv->pending_frame_id);
+
+ /* Check if frame transmission is timed out.
+ * Add an extra second with respect to possible
+ * interrupt loss.
+ */
+ timeout = timestamp +
+ WSM_CMD_LAST_CHANCE_TIMEOUT +
+ 1 * HZ -
+ jiffies;
+
+ /* And terminate BH thread if the frame is "stuck" */
+ if (pending && timeout < 0) {
+ wiphy_warn(priv->hw->wiphy,
+ "Timeout waiting for TX confirm (%d/%d pending, %ld vs %lu).\n",
+ priv->hw_bufs_used, pending,
+ timestamp, jiffies);
+ break;
+ }
+ } else if (!priv->device_can_sleep &&
+ !atomic_read(&priv->recent_scan)) {
+ pr_debug("[BH] Device wakedown. Timeout.\n");
+ cw1200_reg_write_16(priv,
+ ST90TDS_CONTROL_REG_ID, 0);
+ priv->device_can_sleep = true;
+ }
+ goto done;
+ } else if (suspend) {
+ pr_debug("[BH] Device suspend.\n");
+ if (priv->powersave_enabled) {
+ pr_debug("[BH] Device wakedown. Suspend.\n");
+ cw1200_reg_write_16(priv,
+ ST90TDS_CONTROL_REG_ID, 0);
+ priv->device_can_sleep = true;
+ }
+
+ atomic_set(&priv->bh_suspend, CW1200_BH_SUSPENDED);
+ wake_up(&priv->bh_evt_wq);
+ status = wait_event_interruptible(priv->bh_wq,
+ CW1200_BH_RESUME == atomic_read(&priv->bh_suspend));
+ if (status < 0) {
+ wiphy_err(priv->hw->wiphy,
+ "Failed to wait for resume: %ld.\n",
+ status);
+ break;
+ }
+ pr_debug("[BH] Device resume.\n");
+ atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
+ wake_up(&priv->bh_evt_wq);
+ atomic_add(1, &priv->bh_rx);
+ goto done;
+ }
+
+ rx:
+ tx += pending_tx;
+ pending_tx = 0;
+
+ if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
+ break;
+
+ /* Don't bother trying to rx unless we have data to read */
+ if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
+ ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
+ if (ret < 0)
+ break;
+ /* Double up here if there's more data.. */
+ if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
+ ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
+ if (ret < 0)
+ break;
+ }
+ }
+
+ tx:
+ if (tx) {
+ tx = 0;
+
+ BUG_ON(priv->hw_bufs_used > priv->wsm_caps.input_buffers);
+ tx_burst = priv->wsm_caps.input_buffers - priv->hw_bufs_used;
+ tx_allowed = tx_burst > 0;
+
+ if (!tx_allowed) {
+ /* Buffers full. Ensure we process tx
+ * after we handle rx..
+ */
+ pending_tx = tx;
+ goto done_rx;
+ }
+ ret = cw1200_bh_tx_helper(priv, &pending_tx, &tx_burst);
+ if (ret < 0)
+ break;
+ if (ret > 0) /* More to transmit */
+ tx = ret;
+
+ /* Re-read ctrl reg */
+ if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
+ break;
+ }
+
+ done_rx:
+ if (priv->bh_error)
+ break;
+ if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK)
+ goto rx;
+ if (tx)
+ goto tx;
+
+ done:
+ /* Re-enable device interrupts */
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ __cw1200_irq_enable(priv, 1);
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ }
+
+ /* Explicitly disable device interrupts */
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ __cw1200_irq_enable(priv, 0);
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+
+ if (!term) {
+ pr_err("[BH] Fatal error, exiting.\n");
+ priv->bh_error = 1;
+ /* TODO: schedule_work(recovery) */
+ }
+ return 0;
+}
--- /dev/null
+/*
+ * Device handling thread interface for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_BH_H
+#define CW1200_BH_H
+
+/* extern */ struct cw1200_common;
+
+int cw1200_register_bh(struct cw1200_common *priv);
+void cw1200_unregister_bh(struct cw1200_common *priv);
+void cw1200_irq_handler(struct cw1200_common *priv);
+void cw1200_bh_wakeup(struct cw1200_common *priv);
+int cw1200_bh_suspend(struct cw1200_common *priv);
+int cw1200_bh_resume(struct cw1200_common *priv);
+/* Must be called from BH thread. */
+void cw1200_enable_powersave(struct cw1200_common *priv,
+ bool enable);
+int wsm_release_tx_buffer(struct cw1200_common *priv, int count);
+
+#endif /* CW1200_BH_H */
--- /dev/null
+/*
+ * Common private data for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on the mac80211 Prism54 code, which is
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ *
+ * Based on the islsm (softmac prism54) driver, which is:
+ * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_H
+#define CW1200_H
+
+#include <linux/wait.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <net/mac80211.h>
+
+#include "queue.h"
+#include "wsm.h"
+#include "scan.h"
+#include "txrx.h"
+#include "pm.h"
+
+/* Forward declarations */
+struct hwbus_ops;
+struct task_struct;
+struct cw1200_debug_priv;
+struct firmware;
+
+#define CW1200_MAX_CTRL_FRAME_LEN (0x1000)
+
+#define CW1200_MAX_STA_IN_AP_MODE (5)
+#define CW1200_LINK_ID_AFTER_DTIM (CW1200_MAX_STA_IN_AP_MODE + 1)
+#define CW1200_LINK_ID_UAPSD (CW1200_MAX_STA_IN_AP_MODE + 2)
+#define CW1200_LINK_ID_MAX (CW1200_MAX_STA_IN_AP_MODE + 3)
+#define CW1200_MAX_REQUEUE_ATTEMPTS (5)
+
+#define CW1200_MAX_TID (8)
+
+#define CW1200_BLOCK_ACK_CNT (30)
+#define CW1200_BLOCK_ACK_THLD (800)
+#define CW1200_BLOCK_ACK_HIST (3)
+#define CW1200_BLOCK_ACK_INTERVAL (1 * HZ / CW1200_BLOCK_ACK_HIST)
+
+#define CW1200_JOIN_TIMEOUT (1 * HZ)
+#define CW1200_AUTH_TIMEOUT (5 * HZ)
+
+struct cw1200_ht_info {
+ struct ieee80211_sta_ht_cap ht_cap;
+ enum nl80211_channel_type channel_type;
+ u16 operation_mode;
+};
+
+/* Please keep order */
+enum cw1200_join_status {
+ CW1200_JOIN_STATUS_PASSIVE = 0,
+ CW1200_JOIN_STATUS_MONITOR,
+ CW1200_JOIN_STATUS_JOINING,
+ CW1200_JOIN_STATUS_PRE_STA,
+ CW1200_JOIN_STATUS_STA,
+ CW1200_JOIN_STATUS_IBSS,
+ CW1200_JOIN_STATUS_AP,
+};
+
+enum cw1200_link_status {
+ CW1200_LINK_OFF,
+ CW1200_LINK_RESERVE,
+ CW1200_LINK_SOFT,
+ CW1200_LINK_HARD,
+ CW1200_LINK_RESET,
+ CW1200_LINK_RESET_REMAP,
+};
+
+extern int cw1200_power_mode;
+extern const char * const cw1200_fw_types[];
+
+struct cw1200_link_entry {
+ unsigned long timestamp;
+ enum cw1200_link_status status;
+ enum cw1200_link_status prev_status;
+ u8 mac[ETH_ALEN];
+ u8 buffered[CW1200_MAX_TID];
+ struct sk_buff_head rx_queue;
+};
+
+struct cw1200_common {
+ /* interfaces to the rest of the stack */
+ struct ieee80211_hw *hw;
+ struct ieee80211_vif *vif;
+ struct device *pdev;
+
+ /* Statistics */
+ struct ieee80211_low_level_stats stats;
+
+ /* Our macaddr */
+ u8 mac_addr[ETH_ALEN];
+
+ /* Hardware interface */
+ const struct hwbus_ops *hwbus_ops;
+ struct hwbus_priv *hwbus_priv;
+
+ /* Hardware information */
+ enum {
+ HIF_9000_SILICON_VERSATILE = 0,
+ HIF_8601_VERSATILE,
+ HIF_8601_SILICON,
+ } hw_type;
+ enum {
+ CW1200_HW_REV_CUT10 = 10,
+ CW1200_HW_REV_CUT11 = 11,
+ CW1200_HW_REV_CUT20 = 20,
+ CW1200_HW_REV_CUT22 = 22,
+ CW1X60_HW_REV = 40,
+ } hw_revision;
+ int hw_refclk;
+ bool hw_have_5ghz;
+ const struct firmware *sdd;
+ char *sdd_path;
+
+ struct cw1200_debug_priv *debug;
+
+ struct workqueue_struct *workqueue;
+ struct mutex conf_mutex;
+
+ struct cw1200_queue tx_queue[4];
+ struct cw1200_queue_stats tx_queue_stats;
+ int tx_burst_idx;
+
+ /* firmware/hardware info */
+ unsigned int tx_hdr_len;
+
+ /* Radio data */
+ int output_power;
+
+ /* BBP/MAC state */
+ struct ieee80211_rate *rates;
+ struct ieee80211_rate *mcs_rates;
+ struct ieee80211_channel *channel;
+ struct wsm_edca_params edca;
+ struct wsm_tx_queue_params tx_queue_params;
+ struct wsm_mib_association_mode association_mode;
+ struct wsm_set_bss_params bss_params;
+ struct cw1200_ht_info ht_info;
+ struct wsm_set_pm powersave_mode;
+ struct wsm_set_pm firmware_ps_mode;
+ int cqm_rssi_thold;
+ unsigned cqm_rssi_hyst;
+ bool cqm_use_rssi;
+ int cqm_beacon_loss_count;
+ int channel_switch_in_progress;
+ wait_queue_head_t channel_switch_done;
+ u8 long_frame_max_tx_count;
+ u8 short_frame_max_tx_count;
+ int mode;
+ bool enable_beacon;
+ int beacon_int;
+ bool listening;
+ struct wsm_rx_filter rx_filter;
+ struct wsm_mib_multicast_filter multicast_filter;
+ bool has_multicast_subscription;
+ bool disable_beacon_filter;
+ struct work_struct update_filtering_work;
+ struct work_struct set_beacon_wakeup_period_work;
+
+ u8 ba_rx_tid_mask;
+ u8 ba_tx_tid_mask;
+
+ struct cw1200_pm_state pm_state;
+
+ struct wsm_p2p_ps_modeinfo p2p_ps_modeinfo;
+ struct wsm_uapsd_info uapsd_info;
+ bool setbssparams_done;
+ bool bt_present;
+ u8 conf_listen_interval;
+ u32 listen_interval;
+ u32 erp_info;
+ u32 rts_threshold;
+
+ /* BH */
+ atomic_t bh_rx;
+ atomic_t bh_tx;
+ atomic_t bh_term;
+ atomic_t bh_suspend;
+
+ struct workqueue_struct *bh_workqueue;
+ struct work_struct bh_work;
+
+ int bh_error;
+ wait_queue_head_t bh_wq;
+ wait_queue_head_t bh_evt_wq;
+ u8 buf_id_tx;
+ u8 buf_id_rx;
+ u8 wsm_rx_seq;
+ u8 wsm_tx_seq;
+ int hw_bufs_used;
+ bool powersave_enabled;
+ bool device_can_sleep;
+
+ /* Scan status */
+ struct cw1200_scan scan;
+ /* Keep cw1200 awake (WUP = 1) 1 second after each scan to avoid
+ * FW issue with sleeping/waking up.
+ */
+ atomic_t recent_scan;
+ struct delayed_work clear_recent_scan_work;
+
+ /* WSM */
+ struct wsm_startup_ind wsm_caps;
+ struct mutex wsm_cmd_mux;
+ struct wsm_buf wsm_cmd_buf;
+ struct wsm_cmd wsm_cmd;
+ wait_queue_head_t wsm_cmd_wq;
+ wait_queue_head_t wsm_startup_done;
+ int firmware_ready;
+ atomic_t tx_lock;
+
+ /* WSM debug */
+ int wsm_enable_wsm_dumps;
+
+ /* WSM Join */
+ enum cw1200_join_status join_status;
+ u32 pending_frame_id;
+ bool join_pending;
+ struct delayed_work join_timeout;
+ struct work_struct unjoin_work;
+ struct work_struct join_complete_work;
+ int join_complete_status;
+ int join_dtim_period;
+ bool delayed_unjoin;
+
+ /* TX/RX and security */
+ s8 wep_default_key_id;
+ struct work_struct wep_key_work;
+ u32 key_map;
+ struct wsm_add_key keys[WSM_KEY_MAX_INDEX + 1];
+
+ /* AP powersave */
+ u32 link_id_map;
+ struct cw1200_link_entry link_id_db[CW1200_MAX_STA_IN_AP_MODE];
+ struct work_struct link_id_work;
+ struct delayed_work link_id_gc_work;
+ u32 sta_asleep_mask;
+ u32 pspoll_mask;
+ bool aid0_bit_set;
+ spinlock_t ps_state_lock; /* Protect power save state */
+ bool buffered_multicasts;
+ bool tx_multicast;
+ struct work_struct set_tim_work;
+ struct work_struct set_cts_work;
+ struct work_struct multicast_start_work;
+ struct work_struct multicast_stop_work;
+ struct timer_list mcast_timeout;
+
+ /* WSM events and CQM implementation */
+ spinlock_t event_queue_lock; /* Protect event queue */
+ struct list_head event_queue;
+ struct work_struct event_handler;
+
+ struct delayed_work bss_loss_work;
+ spinlock_t bss_loss_lock; /* Protect BSS loss state */
+ int bss_loss_state;
+ u32 bss_loss_confirm_id;
+ int delayed_link_loss;
+ struct work_struct bss_params_work;
+
+ /* TX rate policy cache */
+ struct tx_policy_cache tx_policy_cache;
+ struct work_struct tx_policy_upload_work;
+
+ /* legacy PS mode switch in suspend */
+ int ps_mode_switch_in_progress;
+ wait_queue_head_t ps_mode_switch_done;
+
+ /* Workaround for WFD testcase 6.1.10*/
+ struct work_struct linkid_reset_work;
+ u8 action_frame_sa[ETH_ALEN];
+ u8 action_linkid;
+};
+
+struct cw1200_sta_priv {
+ int link_id;
+};
+
+/* interfaces for the drivers */
+int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
+ struct hwbus_priv *hwbus,
+ struct device *pdev,
+ struct cw1200_common **pself,
+ int ref_clk, const u8 *macaddr,
+ const char *sdd_path, bool have_5ghz);
+void cw1200_core_release(struct cw1200_common *self);
+
+#define FWLOAD_BLOCK_SIZE (1024)
+
+static inline int cw1200_is_ht(const struct cw1200_ht_info *ht_info)
+{
+ return ht_info->channel_type != NL80211_CHAN_NO_HT;
+}
+
+static inline int cw1200_ht_greenfield(const struct cw1200_ht_info *ht_info)
+{
+ return cw1200_is_ht(ht_info) &&
+ (ht_info->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
+ !(ht_info->operation_mode &
+ IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+}
+
+static inline int cw1200_ht_ampdu_density(const struct cw1200_ht_info *ht_info)
+{
+ if (!cw1200_is_ht(ht_info))
+ return 0;
+ return ht_info->ht_cap.ampdu_density;
+}
+
+#endif /* CW1200_H */
--- /dev/null
+/*
+ * Mac80211 SDIO driver for ST-Ericsson CW1200 device
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio.h>
+#include <net/mac80211.h>
+
+#include "cw1200.h"
+#include "hwbus.h"
+#include <linux/platform_data/net-cw1200.h>
+#include "hwio.h"
+
+MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
+MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SDIO driver");
+MODULE_LICENSE("GPL");
+
+#define SDIO_BLOCK_SIZE (512)
+
+/* Default platform data for Sagrad modules */
+static struct cw1200_platform_data_sdio sagrad_109x_evk_platform_data = {
+ .ref_clk = 38400,
+ .have_5ghz = false,
+ .sdd_file = "sdd_sagrad_1091_1098.bin",
+};
+
+/* Allow platform data to be overridden */
+static struct cw1200_platform_data_sdio *global_plat_data = &sagrad_109x_evk_platform_data;
+
+void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata)
+{
+ global_plat_data = pdata;
+}
+
+struct hwbus_priv {
+ struct sdio_func *func;
+ struct cw1200_common *core;
+ const struct cw1200_platform_data_sdio *pdata;
+};
+
+#ifndef SDIO_VENDOR_ID_STE
+#define SDIO_VENDOR_ID_STE 0x0020
+#endif
+
+#ifndef SDIO_DEVICE_ID_STE_CW1200
+#define SDIO_DEVICE_ID_STE_CW1200 0x2280
+#endif
+
+static const struct sdio_device_id cw1200_sdio_ids[] = {
+ { SDIO_DEVICE(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200) },
+ { /* end: all zeroes */ },
+};
+
+/* hwbus_ops implemetation */
+
+static int cw1200_sdio_memcpy_fromio(struct hwbus_priv *self,
+ unsigned int addr,
+ void *dst, int count)
+{
+ return sdio_memcpy_fromio(self->func, dst, addr, count);
+}
+
+static int cw1200_sdio_memcpy_toio(struct hwbus_priv *self,
+ unsigned int addr,
+ const void *src, int count)
+{
+ return sdio_memcpy_toio(self->func, addr, (void *)src, count);
+}
+
+static void cw1200_sdio_lock(struct hwbus_priv *self)
+{
+ sdio_claim_host(self->func);
+}
+
+static void cw1200_sdio_unlock(struct hwbus_priv *self)
+{
+ sdio_release_host(self->func);
+}
+
+static void cw1200_sdio_irq_handler(struct sdio_func *func)
+{
+ struct hwbus_priv *self = sdio_get_drvdata(func);
+
+ /* note: sdio_host already claimed here. */
+ if (self->core)
+ cw1200_irq_handler(self->core);
+}
+
+static irqreturn_t cw1200_gpio_hardirq(int irq, void *dev_id)
+{
+ return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
+{
+ struct hwbus_priv *self = dev_id;
+
+ if (self->core) {
+ cw1200_sdio_lock(self);
+ cw1200_irq_handler(self->core);
+ cw1200_sdio_unlock(self);
+ return IRQ_HANDLED;
+ } else {
+ return IRQ_NONE;
+ }
+}
+
+static int cw1200_request_irq(struct hwbus_priv *self)
+{
+ int ret;
+ u8 cccr;
+
+ cccr = sdio_f0_readb(self->func, SDIO_CCCR_IENx, &ret);
+ if (WARN_ON(ret))
+ goto err;
+
+ /* Master interrupt enable ... */
+ cccr |= BIT(0);
+
+ /* ... for our function */
+ cccr |= BIT(self->func->num);
+
+ sdio_f0_writeb(self->func, cccr, SDIO_CCCR_IENx, &ret);
+ if (WARN_ON(ret))
+ goto err;
+
+ ret = enable_irq_wake(self->pdata->irq);
+ if (WARN_ON(ret))
+ goto err;
+
+ /* Request the IRQ */
+ ret = request_threaded_irq(self->pdata->irq, cw1200_gpio_hardirq,
+ cw1200_gpio_irq,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ "cw1200_wlan_irq", self);
+ if (WARN_ON(ret))
+ goto err;
+
+ return 0;
+
+err:
+ return ret;
+}
+
+static int cw1200_sdio_irq_subscribe(struct hwbus_priv *self)
+{
+ int ret = 0;
+
+ pr_debug("SW IRQ subscribe\n");
+ sdio_claim_host(self->func);
+ if (self->pdata->irq)
+ ret = cw1200_request_irq(self);
+ else
+ ret = sdio_claim_irq(self->func, cw1200_sdio_irq_handler);
+
+ sdio_release_host(self->func);
+ return ret;
+}
+
+static int cw1200_sdio_irq_unsubscribe(struct hwbus_priv *self)
+{
+ int ret = 0;
+
+ pr_debug("SW IRQ unsubscribe\n");
+
+ if (self->pdata->irq) {
+ disable_irq_wake(self->pdata->irq);
+ free_irq(self->pdata->irq, self);
+ } else {
+ sdio_claim_host(self->func);
+ ret = sdio_release_irq(self->func);
+ sdio_release_host(self->func);
+ }
+ return ret;
+}
+
+static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
+{
+ if (pdata->reset) {
+ gpio_set_value(pdata->reset, 0);
+ msleep(30); /* Min is 2 * CLK32K cycles */
+ gpio_free(pdata->reset);
+ }
+
+ if (pdata->power_ctrl)
+ pdata->power_ctrl(pdata, false);
+ if (pdata->clk_ctrl)
+ pdata->clk_ctrl(pdata, false);
+
+ return 0;
+}
+
+static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
+{
+ /* Ensure I/Os are pulled low */
+ if (pdata->reset) {
+ gpio_request(pdata->reset, "cw1200_wlan_reset");
+ gpio_direction_output(pdata->reset, 0);
+ }
+ if (pdata->powerup) {
+ gpio_request(pdata->powerup, "cw1200_wlan_powerup");
+ gpio_direction_output(pdata->powerup, 0);
+ }
+ if (pdata->reset || pdata->powerup)
+ msleep(10); /* Settle time? */
+
+ /* Enable 3v3 and 1v8 to hardware */
+ if (pdata->power_ctrl) {
+ if (pdata->power_ctrl(pdata, true)) {
+ pr_err("power_ctrl() failed!\n");
+ return -1;
+ }
+ }
+
+ /* Enable CLK32K */
+ if (pdata->clk_ctrl) {
+ if (pdata->clk_ctrl(pdata, true)) {
+ pr_err("clk_ctrl() failed!\n");
+ return -1;
+ }
+ msleep(10); /* Delay until clock is stable for 2 cycles */
+ }
+
+ /* Enable POWERUP signal */
+ if (pdata->powerup) {
+ gpio_set_value(pdata->powerup, 1);
+ msleep(250); /* or more..? */
+ }
+ /* Enable RSTn signal */
+ if (pdata->reset) {
+ gpio_set_value(pdata->reset, 1);
+ msleep(50); /* Or more..? */
+ }
+ return 0;
+}
+
+static size_t cw1200_sdio_align_size(struct hwbus_priv *self, size_t size)
+{
+ if (self->pdata->no_nptb)
+ size = round_up(size, SDIO_BLOCK_SIZE);
+ else
+ size = sdio_align_size(self->func, size);
+
+ return size;
+}
+
+static int cw1200_sdio_pm(struct hwbus_priv *self, bool suspend)
+{
+ int ret = 0;
+
+ if (self->pdata->irq)
+ ret = irq_set_irq_wake(self->pdata->irq, suspend);
+ return ret;
+}
+
+static struct hwbus_ops cw1200_sdio_hwbus_ops = {
+ .hwbus_memcpy_fromio = cw1200_sdio_memcpy_fromio,
+ .hwbus_memcpy_toio = cw1200_sdio_memcpy_toio,
+ .lock = cw1200_sdio_lock,
+ .unlock = cw1200_sdio_unlock,
+ .align_size = cw1200_sdio_align_size,
+ .power_mgmt = cw1200_sdio_pm,
+};
+
+/* Probe Function to be called by SDIO stack when device is discovered */
+static int cw1200_sdio_probe(struct sdio_func *func,
+ const struct sdio_device_id *id)
+{
+ struct hwbus_priv *self;
+ int status;
+
+ pr_info("cw1200_wlan_sdio: Probe called\n");
+
+ /* We are only able to handle the wlan function */
+ if (func->num != 0x01)
+ return -ENODEV;
+
+ self = kzalloc(sizeof(*self), GFP_KERNEL);
+ if (!self) {
+ pr_err("Can't allocate SDIO hwbus_priv.\n");
+ return -ENOMEM;
+ }
+
+ func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
+
+ self->pdata = global_plat_data; /* FIXME */
+ self->func = func;
+ sdio_set_drvdata(func, self);
+ sdio_claim_host(func);
+ sdio_enable_func(func);
+ sdio_release_host(func);
+
+ status = cw1200_sdio_irq_subscribe(self);
+
+ status = cw1200_core_probe(&cw1200_sdio_hwbus_ops,
+ self, &func->dev, &self->core,
+ self->pdata->ref_clk,
+ self->pdata->macaddr,
+ self->pdata->sdd_file,
+ self->pdata->have_5ghz);
+ if (status) {
+ cw1200_sdio_irq_unsubscribe(self);
+ sdio_claim_host(func);
+ sdio_disable_func(func);
+ sdio_release_host(func);
+ sdio_set_drvdata(func, NULL);
+ kfree(self);
+ }
+
+ return status;
+}
+
+/* Disconnect Function to be called by SDIO stack when
+ * device is disconnected
+ */
+static void cw1200_sdio_disconnect(struct sdio_func *func)
+{
+ struct hwbus_priv *self = sdio_get_drvdata(func);
+
+ if (self) {
+ cw1200_sdio_irq_unsubscribe(self);
+ if (self->core) {
+ cw1200_core_release(self->core);
+ self->core = NULL;
+ }
+ sdio_claim_host(func);
+ sdio_disable_func(func);
+ sdio_release_host(func);
+ sdio_set_drvdata(func, NULL);
+ kfree(self);
+ }
+}
+
+#ifdef CONFIG_PM
+static int cw1200_sdio_suspend(struct device *dev)
+{
+ int ret;
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct hwbus_priv *self = sdio_get_drvdata(func);
+
+ if (!cw1200_can_suspend(self->core))
+ return -EAGAIN;
+
+ /* Notify SDIO that CW1200 will remain powered during suspend */
+ ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+ if (ret)
+ pr_err("Error setting SDIO pm flags: %i\n", ret);
+
+ return ret;
+}
+
+static int cw1200_sdio_resume(struct device *dev)
+{
+ return 0;
+}
+
+static const struct dev_pm_ops cw1200_pm_ops = {
+ .suspend = cw1200_sdio_suspend,
+ .resume = cw1200_sdio_resume,
+};
+#endif
+
+static struct sdio_driver sdio_driver = {
+ .name = "cw1200_wlan_sdio",
+ .id_table = cw1200_sdio_ids,
+ .probe = cw1200_sdio_probe,
+ .remove = cw1200_sdio_disconnect,
+#ifdef CONFIG_PM
+ .drv = {
+ .pm = &cw1200_pm_ops,
+ }
+#endif
+};
+
+/* Init Module function -> Called by insmod */
+static int __init cw1200_sdio_init(void)
+{
+ const struct cw1200_platform_data_sdio *pdata;
+ int ret;
+
+ /* FIXME -- this won't support multiple devices */
+ pdata = global_plat_data;
+
+ if (cw1200_sdio_on(pdata)) {
+ ret = -1;
+ goto err;
+ }
+
+ ret = sdio_register_driver(&sdio_driver);
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ cw1200_sdio_off(pdata);
+ return ret;
+}
+
+/* Called at Driver Unloading */
+static void __exit cw1200_sdio_exit(void)
+{
+ const struct cw1200_platform_data_sdio *pdata;
+
+ /* FIXME -- this won't support multiple devices */
+ pdata = global_plat_data;
+ sdio_unregister_driver(&sdio_driver);
+ cw1200_sdio_off(pdata);
+}
+
+
+module_init(cw1200_sdio_init);
+module_exit(cw1200_sdio_exit);
--- /dev/null
+/*
+ * Mac80211 SPI driver for ST-Ericsson CW1200 device
+ *
+ * Copyright (c) 2011, Sagrad Inc.
+ * Author: Solomon Peachy <speachy@sagrad.com>
+ *
+ * Based on cw1200_sdio.c
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <net/mac80211.h>
+
+#include <linux/spi/spi.h>
+#include <linux/device.h>
+
+#include "cw1200.h"
+#include "hwbus.h"
+#include <linux/platform_data/net-cw1200.h>
+#include "hwio.h"
+
+MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
+MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SPI driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:cw1200_wlan_spi");
+
+/* #define SPI_DEBUG */
+
+struct hwbus_priv {
+ struct spi_device *func;
+ struct cw1200_common *core;
+ const struct cw1200_platform_data_spi *pdata;
+ spinlock_t lock; /* Serialize all bus operations */
+ wait_queue_head_t wq;
+ int claimed;
+};
+
+#define SDIO_TO_SPI_ADDR(addr) ((addr & 0x1f)>>2)
+#define SET_WRITE 0x7FFF /* usage: and operation */
+#define SET_READ 0x8000 /* usage: or operation */
+
+/* Notes on byte ordering:
+ LE: B0 B1 B2 B3
+ BE: B3 B2 B1 B0
+
+ Hardware expects 32-bit data to be written as 16-bit BE words:
+
+ B1 B0 B3 B2
+*/
+
+static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
+ unsigned int addr,
+ void *dst, int count)
+{
+ int ret, i;
+ u16 regaddr;
+ struct spi_message m;
+
+ struct spi_transfer t_addr = {
+ .tx_buf = ®addr,
+ .len = sizeof(regaddr),
+ };
+ struct spi_transfer t_msg = {
+ .rx_buf = dst,
+ .len = count,
+ };
+
+ regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
+ regaddr |= SET_READ;
+ regaddr |= (count>>1);
+
+#ifdef SPI_DEBUG
+ pr_info("READ : %04d from 0x%02x (%04x)\n", count, addr, regaddr);
+#endif
+
+ /* Header is LE16 */
+ regaddr = cpu_to_le16(regaddr);
+
+ /* We have to byteswap if the SPI bus is limited to 8b operation
+ or we are running on a Big Endian system
+ */
+#if defined(__LITTLE_ENDIAN)
+ if (self->func->bits_per_word == 8)
+#endif
+ regaddr = swab16(regaddr);
+
+ spi_message_init(&m);
+ spi_message_add_tail(&t_addr, &m);
+ spi_message_add_tail(&t_msg, &m);
+ ret = spi_sync(self->func, &m);
+
+#ifdef SPI_DEBUG
+ pr_info("READ : ");
+ for (i = 0; i < t_addr.len; i++)
+ printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
+ printk(" : ");
+ for (i = 0; i < t_msg.len; i++)
+ printk("%02x ", ((u8 *)t_msg.rx_buf)[i]);
+ printk("\n");
+#endif
+
+ /* We have to byteswap if the SPI bus is limited to 8b operation
+ or we are running on a Big Endian system
+ */
+#if defined(__LITTLE_ENDIAN)
+ if (self->func->bits_per_word == 8)
+#endif
+ {
+ uint16_t *buf = (uint16_t *)dst;
+ for (i = 0; i < ((count + 1) >> 1); i++)
+ buf[i] = swab16(buf[i]);
+ }
+
+ return ret;
+}
+
+static int cw1200_spi_memcpy_toio(struct hwbus_priv *self,
+ unsigned int addr,
+ const void *src, int count)
+{
+ int rval, i;
+ u16 regaddr;
+ struct spi_transfer t_addr = {
+ .tx_buf = ®addr,
+ .len = sizeof(regaddr),
+ };
+ struct spi_transfer t_msg = {
+ .tx_buf = src,
+ .len = count,
+ };
+ struct spi_message m;
+
+ regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
+ regaddr &= SET_WRITE;
+ regaddr |= (count>>1);
+
+#ifdef SPI_DEBUG
+ pr_info("WRITE: %04d to 0x%02x (%04x)\n", count, addr, regaddr);
+#endif
+
+ /* Header is LE16 */
+ regaddr = cpu_to_le16(regaddr);
+
+ /* We have to byteswap if the SPI bus is limited to 8b operation
+ or we are running on a Big Endian system
+ */
+#if defined(__LITTLE_ENDIAN)
+ if (self->func->bits_per_word == 8)
+#endif
+ {
+ uint16_t *buf = (uint16_t *)src;
+ regaddr = swab16(regaddr);
+ for (i = 0; i < ((count + 1) >> 1); i++)
+ buf[i] = swab16(buf[i]);
+ }
+
+#ifdef SPI_DEBUG
+ pr_info("WRITE: ");
+ for (i = 0; i < t_addr.len; i++)
+ printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
+ printk(" : ");
+ for (i = 0; i < t_msg.len; i++)
+ printk("%02x ", ((u8 *)t_msg.tx_buf)[i]);
+ printk("\n");
+#endif
+
+ spi_message_init(&m);
+ spi_message_add_tail(&t_addr, &m);
+ spi_message_add_tail(&t_msg, &m);
+ rval = spi_sync(self->func, &m);
+
+#ifdef SPI_DEBUG
+ pr_info("WROTE: %d\n", m.actual_length);
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+ /* We have to byteswap if the SPI bus is limited to 8b operation */
+ if (self->func->bits_per_word == 8)
+#endif
+ {
+ uint16_t *buf = (uint16_t *)src;
+ for (i = 0; i < ((count + 1) >> 1); i++)
+ buf[i] = swab16(buf[i]);
+ }
+ return rval;
+}
+
+static void cw1200_spi_lock(struct hwbus_priv *self)
+{
+ unsigned long flags;
+
+ DECLARE_WAITQUEUE(wait, current);
+
+ might_sleep();
+
+ add_wait_queue(&self->wq, &wait);
+ spin_lock_irqsave(&self->lock, flags);
+ while (1) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ if (!self->claimed)
+ break;
+ spin_unlock_irqrestore(&self->lock, flags);
+ schedule();
+ spin_lock_irqsave(&self->lock, flags);
+ }
+ set_current_state(TASK_RUNNING);
+ self->claimed = 1;
+ spin_unlock_irqrestore(&self->lock, flags);
+ remove_wait_queue(&self->wq, &wait);
+
+ return;
+}
+
+static void cw1200_spi_unlock(struct hwbus_priv *self)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&self->lock, flags);
+ self->claimed = 0;
+ spin_unlock_irqrestore(&self->lock, flags);
+ wake_up(&self->wq);
+
+ return;
+}
+
+static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id)
+{
+ struct hwbus_priv *self = dev_id;
+
+ if (self->core) {
+ cw1200_spi_lock(self);
+ cw1200_irq_handler(self->core);
+ cw1200_spi_unlock(self);
+ return IRQ_HANDLED;
+ } else {
+ return IRQ_NONE;
+ }
+}
+
+static int cw1200_spi_irq_subscribe(struct hwbus_priv *self)
+{
+ int ret;
+
+ pr_debug("SW IRQ subscribe\n");
+
+ ret = request_threaded_irq(self->func->irq, NULL,
+ cw1200_spi_irq_handler,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ "cw1200_wlan_irq", self);
+ if (WARN_ON(ret < 0))
+ goto exit;
+
+ ret = enable_irq_wake(self->func->irq);
+ if (WARN_ON(ret))
+ goto free_irq;
+
+ return 0;
+
+free_irq:
+ free_irq(self->func->irq, self);
+exit:
+ return ret;
+}
+
+static int cw1200_spi_irq_unsubscribe(struct hwbus_priv *self)
+{
+ int ret = 0;
+
+ pr_debug("SW IRQ unsubscribe\n");
+ disable_irq_wake(self->func->irq);
+ free_irq(self->func->irq, self);
+
+ return ret;
+}
+
+static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
+{
+ if (pdata->reset) {
+ gpio_set_value(pdata->reset, 0);
+ msleep(30); /* Min is 2 * CLK32K cycles */
+ gpio_free(pdata->reset);
+ }
+
+ if (pdata->power_ctrl)
+ pdata->power_ctrl(pdata, false);
+ if (pdata->clk_ctrl)
+ pdata->clk_ctrl(pdata, false);
+
+ return 0;
+}
+
+static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
+{
+ /* Ensure I/Os are pulled low */
+ if (pdata->reset) {
+ gpio_request(pdata->reset, "cw1200_wlan_reset");
+ gpio_direction_output(pdata->reset, 0);
+ }
+ if (pdata->powerup) {
+ gpio_request(pdata->powerup, "cw1200_wlan_powerup");
+ gpio_direction_output(pdata->powerup, 0);
+ }
+ if (pdata->reset || pdata->powerup)
+ msleep(10); /* Settle time? */
+
+ /* Enable 3v3 and 1v8 to hardware */
+ if (pdata->power_ctrl) {
+ if (pdata->power_ctrl(pdata, true)) {
+ pr_err("power_ctrl() failed!\n");
+ return -1;
+ }
+ }
+
+ /* Enable CLK32K */
+ if (pdata->clk_ctrl) {
+ if (pdata->clk_ctrl(pdata, true)) {
+ pr_err("clk_ctrl() failed!\n");
+ return -1;
+ }
+ msleep(10); /* Delay until clock is stable for 2 cycles */
+ }
+
+ /* Enable POWERUP signal */
+ if (pdata->powerup) {
+ gpio_set_value(pdata->powerup, 1);
+ msleep(250); /* or more..? */
+ }
+ /* Enable RSTn signal */
+ if (pdata->reset) {
+ gpio_set_value(pdata->reset, 1);
+ msleep(50); /* Or more..? */
+ }
+ return 0;
+}
+
+static size_t cw1200_spi_align_size(struct hwbus_priv *self, size_t size)
+{
+ return size & 1 ? size + 1 : size;
+}
+
+static int cw1200_spi_pm(struct hwbus_priv *self, bool suspend)
+{
+ return irq_set_irq_wake(self->func->irq, suspend);
+}
+
+static struct hwbus_ops cw1200_spi_hwbus_ops = {
+ .hwbus_memcpy_fromio = cw1200_spi_memcpy_fromio,
+ .hwbus_memcpy_toio = cw1200_spi_memcpy_toio,
+ .lock = cw1200_spi_lock,
+ .unlock = cw1200_spi_unlock,
+ .align_size = cw1200_spi_align_size,
+ .power_mgmt = cw1200_spi_pm,
+};
+
+/* Probe Function to be called by SPI stack when device is discovered */
+static int cw1200_spi_probe(struct spi_device *func)
+{
+ const struct cw1200_platform_data_spi *plat_data =
+ dev_get_platdata(&func->dev);
+ struct hwbus_priv *self;
+ int status;
+
+ /* Sanity check speed */
+ if (func->max_speed_hz > 52000000)
+ func->max_speed_hz = 52000000;
+ if (func->max_speed_hz < 1000000)
+ func->max_speed_hz = 1000000;
+
+ /* Fix up transfer size */
+ if (plat_data->spi_bits_per_word)
+ func->bits_per_word = plat_data->spi_bits_per_word;
+ if (!func->bits_per_word)
+ func->bits_per_word = 16;
+
+ /* And finally.. */
+ func->mode = SPI_MODE_0;
+
+ pr_info("cw1200_wlan_spi: Probe called (CS %d M %d BPW %d CLK %d)\n",
+ func->chip_select, func->mode, func->bits_per_word,
+ func->max_speed_hz);
+
+ if (cw1200_spi_on(plat_data)) {
+ pr_err("spi_on() failed!\n");
+ return -1;
+ }
+
+ if (spi_setup(func)) {
+ pr_err("spi_setup() failed!\n");
+ return -1;
+ }
+
+ self = devm_kzalloc(&func->dev, sizeof(*self), GFP_KERNEL);
+ if (!self) {
+ pr_err("Can't allocate SPI hwbus_priv.");
+ return -ENOMEM;
+ }
+
+ self->pdata = plat_data;
+ self->func = func;
+ spin_lock_init(&self->lock);
+
+ spi_set_drvdata(func, self);
+
+ init_waitqueue_head(&self->wq);
+
+ status = cw1200_spi_irq_subscribe(self);
+
+ status = cw1200_core_probe(&cw1200_spi_hwbus_ops,
+ self, &func->dev, &self->core,
+ self->pdata->ref_clk,
+ self->pdata->macaddr,
+ self->pdata->sdd_file,
+ self->pdata->have_5ghz);
+
+ if (status) {
+ cw1200_spi_irq_unsubscribe(self);
+ cw1200_spi_off(plat_data);
+ }
+
+ return status;
+}
+
+/* Disconnect Function to be called by SPI stack when device is disconnected */
+static int cw1200_spi_disconnect(struct spi_device *func)
+{
+ struct hwbus_priv *self = spi_get_drvdata(func);
+
+ if (self) {
+ cw1200_spi_irq_unsubscribe(self);
+ if (self->core) {
+ cw1200_core_release(self->core);
+ self->core = NULL;
+ }
+ }
+ cw1200_spi_off(dev_get_platdata(&func->dev));
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int cw1200_spi_suspend(struct device *dev)
+{
+ struct hwbus_priv *self = spi_get_drvdata(to_spi_device(dev));
+
+ if (!cw1200_can_suspend(self->core))
+ return -EAGAIN;
+
+ /* XXX notify host that we have to keep CW1200 powered on? */
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(cw1200_pm_ops, cw1200_spi_suspend, NULL);
+
+#endif
+
+static struct spi_driver spi_driver = {
+ .probe = cw1200_spi_probe,
+ .remove = cw1200_spi_disconnect,
+ .driver = {
+ .name = "cw1200_wlan_spi",
+#ifdef CONFIG_PM
+ .pm = &cw1200_pm_ops,
+#endif
+ },
+};
+
+module_spi_driver(spi_driver);
--- /dev/null
+/*
+ * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
+ * DebugFS code
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "cw1200.h"
+#include "debug.h"
+#include "fwio.h"
+
+/* join_status */
+static const char * const cw1200_debug_join_status[] = {
+ "passive",
+ "monitor",
+ "station (joining)",
+ "station (not authenticated yet)",
+ "station",
+ "adhoc",
+ "access point",
+};
+
+/* WSM_JOIN_PREAMBLE_... */
+static const char * const cw1200_debug_preamble[] = {
+ "long",
+ "short",
+ "long on 1 and 2 Mbps",
+};
+
+
+static const char * const cw1200_debug_link_id[] = {
+ "OFF",
+ "REQ",
+ "SOFT",
+ "HARD",
+ "RESET",
+ "RESET_REMAP",
+};
+
+static const char *cw1200_debug_mode(int mode)
+{
+ switch (mode) {
+ case NL80211_IFTYPE_UNSPECIFIED:
+ return "unspecified";
+ case NL80211_IFTYPE_MONITOR:
+ return "monitor";
+ case NL80211_IFTYPE_STATION:
+ return "station";
+ case NL80211_IFTYPE_ADHOC:
+ return "adhoc";
+ case NL80211_IFTYPE_MESH_POINT:
+ return "mesh point";
+ case NL80211_IFTYPE_AP:
+ return "access point";
+ case NL80211_IFTYPE_P2P_CLIENT:
+ return "p2p client";
+ case NL80211_IFTYPE_P2P_GO:
+ return "p2p go";
+ default:
+ return "unsupported";
+ }
+}
+
+static void cw1200_queue_status_show(struct seq_file *seq,
+ struct cw1200_queue *q)
+{
+ int i;
+ seq_printf(seq, "Queue %d:\n", q->queue_id);
+ seq_printf(seq, " capacity: %zu\n", q->capacity);
+ seq_printf(seq, " queued: %zu\n", q->num_queued);
+ seq_printf(seq, " pending: %zu\n", q->num_pending);
+ seq_printf(seq, " sent: %zu\n", q->num_sent);
+ seq_printf(seq, " locked: %s\n", q->tx_locked_cnt ? "yes" : "no");
+ seq_printf(seq, " overfull: %s\n", q->overfull ? "yes" : "no");
+ seq_puts(seq, " link map: 0-> ");
+ for (i = 0; i < q->stats->map_capacity; ++i)
+ seq_printf(seq, "%.2d ", q->link_map_cache[i]);
+ seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
+}
+
+static void cw1200_debug_print_map(struct seq_file *seq,
+ struct cw1200_common *priv,
+ const char *label,
+ u32 map)
+{
+ int i;
+ seq_printf(seq, "%s0-> ", label);
+ for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
+ seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
+ seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
+}
+
+static int cw1200_status_show(struct seq_file *seq, void *v)
+{
+ int i;
+ struct list_head *item;
+ struct cw1200_common *priv = seq->private;
+ struct cw1200_debug_priv *d = priv->debug;
+
+ seq_puts(seq, "CW1200 Wireless LAN driver status\n");
+ seq_printf(seq, "Hardware: %d.%d\n",
+ priv->wsm_caps.hw_id,
+ priv->wsm_caps.hw_subid);
+ seq_printf(seq, "Firmware: %s %d.%d\n",
+ cw1200_fw_types[priv->wsm_caps.fw_type],
+ priv->wsm_caps.fw_ver,
+ priv->wsm_caps.fw_build);
+ seq_printf(seq, "FW API: %d\n",
+ priv->wsm_caps.fw_api);
+ seq_printf(seq, "FW caps: 0x%.4X\n",
+ priv->wsm_caps.fw_cap);
+ seq_printf(seq, "FW label: '%s'\n",
+ priv->wsm_caps.fw_label);
+ seq_printf(seq, "Mode: %s%s\n",
+ cw1200_debug_mode(priv->mode),
+ priv->listening ? " (listening)" : "");
+ seq_printf(seq, "Join state: %s\n",
+ cw1200_debug_join_status[priv->join_status]);
+ if (priv->channel)
+ seq_printf(seq, "Channel: %d%s\n",
+ priv->channel->hw_value,
+ priv->channel_switch_in_progress ?
+ " (switching)" : "");
+ if (priv->rx_filter.promiscuous)
+ seq_puts(seq, "Filter: promisc\n");
+ else if (priv->rx_filter.fcs)
+ seq_puts(seq, "Filter: fcs\n");
+ if (priv->rx_filter.bssid)
+ seq_puts(seq, "Filter: bssid\n");
+ if (!priv->disable_beacon_filter)
+ seq_puts(seq, "Filter: beacons\n");
+
+ if (priv->enable_beacon ||
+ priv->mode == NL80211_IFTYPE_AP ||
+ priv->mode == NL80211_IFTYPE_ADHOC ||
+ priv->mode == NL80211_IFTYPE_MESH_POINT ||
+ priv->mode == NL80211_IFTYPE_P2P_GO)
+ seq_printf(seq, "Beaconing: %s\n",
+ priv->enable_beacon ?
+ "enabled" : "disabled");
+
+ for (i = 0; i < 4; ++i)
+ seq_printf(seq, "EDCA(%d): %d, %d, %d, %d, %d\n", i,
+ priv->edca.params[i].cwmin,
+ priv->edca.params[i].cwmax,
+ priv->edca.params[i].aifns,
+ priv->edca.params[i].txop_limit,
+ priv->edca.params[i].max_rx_lifetime);
+
+ if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+ static const char *pm_mode = "unknown";
+ switch (priv->powersave_mode.mode) {
+ case WSM_PSM_ACTIVE:
+ pm_mode = "off";
+ break;
+ case WSM_PSM_PS:
+ pm_mode = "on";
+ break;
+ case WSM_PSM_FAST_PS:
+ pm_mode = "dynamic";
+ break;
+ }
+ seq_printf(seq, "Preamble: %s\n",
+ cw1200_debug_preamble[priv->association_mode.preamble]);
+ seq_printf(seq, "AMPDU spcn: %d\n",
+ priv->association_mode.mpdu_start_spacing);
+ seq_printf(seq, "Basic rate: 0x%.8X\n",
+ le32_to_cpu(priv->association_mode.basic_rate_set));
+ seq_printf(seq, "Bss lost: %d beacons\n",
+ priv->bss_params.beacon_lost_count);
+ seq_printf(seq, "AID: %d\n",
+ priv->bss_params.aid);
+ seq_printf(seq, "Rates: 0x%.8X\n",
+ priv->bss_params.operational_rate_set);
+ seq_printf(seq, "Powersave: %s\n", pm_mode);
+ }
+ seq_printf(seq, "HT: %s\n",
+ cw1200_is_ht(&priv->ht_info) ? "on" : "off");
+ if (cw1200_is_ht(&priv->ht_info)) {
+ seq_printf(seq, "Greenfield: %s\n",
+ cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
+ seq_printf(seq, "AMPDU dens: %d\n",
+ cw1200_ht_ampdu_density(&priv->ht_info));
+ }
+ seq_printf(seq, "RSSI thold: %d\n",
+ priv->cqm_rssi_thold);
+ seq_printf(seq, "RSSI hyst: %d\n",
+ priv->cqm_rssi_hyst);
+ seq_printf(seq, "Long retr: %d\n",
+ priv->long_frame_max_tx_count);
+ seq_printf(seq, "Short retr: %d\n",
+ priv->short_frame_max_tx_count);
+ spin_lock_bh(&priv->tx_policy_cache.lock);
+ i = 0;
+ list_for_each(item, &priv->tx_policy_cache.used)
+ ++i;
+ spin_unlock_bh(&priv->tx_policy_cache.lock);
+ seq_printf(seq, "RC in use: %d\n", i);
+
+ seq_puts(seq, "\n");
+ for (i = 0; i < 4; ++i) {
+ cw1200_queue_status_show(seq, &priv->tx_queue[i]);
+ seq_puts(seq, "\n");
+ }
+
+ cw1200_debug_print_map(seq, priv, "Link map: ",
+ priv->link_id_map);
+ cw1200_debug_print_map(seq, priv, "Asleep map: ",
+ priv->sta_asleep_mask);
+ cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
+ priv->pspoll_mask);
+
+ seq_puts(seq, "\n");
+
+ for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+ if (priv->link_id_db[i].status) {
+ seq_printf(seq, "Link %d: %s, %pM\n",
+ i + 1,
+ cw1200_debug_link_id[priv->link_id_db[i].status],
+ priv->link_id_db[i].mac);
+ }
+ }
+
+ seq_puts(seq, "\n");
+
+ seq_printf(seq, "BH status: %s\n",
+ atomic_read(&priv->bh_term) ? "terminated" : "alive");
+ seq_printf(seq, "Pending RX: %d\n",
+ atomic_read(&priv->bh_rx));
+ seq_printf(seq, "Pending TX: %d\n",
+ atomic_read(&priv->bh_tx));
+ if (priv->bh_error)
+ seq_printf(seq, "BH errcode: %d\n",
+ priv->bh_error);
+ seq_printf(seq, "TX bufs: %d x %d bytes\n",
+ priv->wsm_caps.input_buffers,
+ priv->wsm_caps.input_buffer_size);
+ seq_printf(seq, "Used bufs: %d\n",
+ priv->hw_bufs_used);
+ seq_printf(seq, "Powermgmt: %s\n",
+ priv->powersave_enabled ? "on" : "off");
+ seq_printf(seq, "Device: %s\n",
+ priv->device_can_sleep ? "asleep" : "awake");
+
+ spin_lock(&priv->wsm_cmd.lock);
+ seq_printf(seq, "WSM status: %s\n",
+ priv->wsm_cmd.done ? "idle" : "active");
+ seq_printf(seq, "WSM cmd: 0x%.4X (%td bytes)\n",
+ priv->wsm_cmd.cmd, priv->wsm_cmd.len);
+ seq_printf(seq, "WSM retval: %d\n",
+ priv->wsm_cmd.ret);
+ spin_unlock(&priv->wsm_cmd.lock);
+
+ seq_printf(seq, "Datapath: %s\n",
+ atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
+ if (atomic_read(&priv->tx_lock))
+ seq_printf(seq, "TXlock cnt: %d\n",
+ atomic_read(&priv->tx_lock));
+
+ seq_printf(seq, "TXed: %d\n",
+ d->tx);
+ seq_printf(seq, "AGG TXed: %d\n",
+ d->tx_agg);
+ seq_printf(seq, "MULTI TXed: %d (%d)\n",
+ d->tx_multi, d->tx_multi_frames);
+ seq_printf(seq, "RXed: %d\n",
+ d->rx);
+ seq_printf(seq, "AGG RXed: %d\n",
+ d->rx_agg);
+ seq_printf(seq, "TX miss: %d\n",
+ d->tx_cache_miss);
+ seq_printf(seq, "TX align: %d\n",
+ d->tx_align);
+ seq_printf(seq, "TX burst: %d\n",
+ d->tx_burst);
+ seq_printf(seq, "TX TTL: %d\n",
+ d->tx_ttl);
+ seq_printf(seq, "Scan: %s\n",
+ atomic_read(&priv->scan.in_progress) ? "active" : "idle");
+
+ return 0;
+}
+
+static int cw1200_status_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, &cw1200_status_show,
+ inode->i_private);
+}
+
+static const struct file_operations fops_status = {
+ .open = cw1200_status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int cw1200_counters_show(struct seq_file *seq, void *v)
+{
+ int ret;
+ struct cw1200_common *priv = seq->private;
+ struct wsm_mib_counters_table counters;
+
+ ret = wsm_get_counters_table(priv, &counters);
+ if (ret)
+ return ret;
+
+#define PUT_COUNTER(tab, name) \
+ seq_printf(seq, "%s:" tab "%d\n", #name, \
+ __le32_to_cpu(counters.name))
+
+ PUT_COUNTER("\t\t", plcp_errors);
+ PUT_COUNTER("\t\t", fcs_errors);
+ PUT_COUNTER("\t\t", tx_packets);
+ PUT_COUNTER("\t\t", rx_packets);
+ PUT_COUNTER("\t\t", rx_packet_errors);
+ PUT_COUNTER("\t", rx_decryption_failures);
+ PUT_COUNTER("\t\t", rx_mic_failures);
+ PUT_COUNTER("\t", rx_no_key_failures);
+ PUT_COUNTER("\t", tx_multicast_frames);
+ PUT_COUNTER("\t", tx_frames_success);
+ PUT_COUNTER("\t", tx_frame_failures);
+ PUT_COUNTER("\t", tx_frames_retried);
+ PUT_COUNTER("\t", tx_frames_multi_retried);
+ PUT_COUNTER("\t", rx_frame_duplicates);
+ PUT_COUNTER("\t\t", rts_success);
+ PUT_COUNTER("\t\t", rts_failures);
+ PUT_COUNTER("\t\t", ack_failures);
+ PUT_COUNTER("\t", rx_multicast_frames);
+ PUT_COUNTER("\t", rx_frames_success);
+ PUT_COUNTER("\t", rx_cmac_icv_errors);
+ PUT_COUNTER("\t\t", rx_cmac_replays);
+ PUT_COUNTER("\t", rx_mgmt_ccmp_replays);
+
+#undef PUT_COUNTER
+
+ return 0;
+}
+
+static int cw1200_counters_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, &cw1200_counters_show,
+ inode->i_private);
+}
+
+static const struct file_operations fops_counters = {
+ .open = cw1200_counters_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static ssize_t cw1200_wsm_dumps(struct file *file,
+ const char __user *user_buf, size_t count, loff_t *ppos)
+{
+ struct cw1200_common *priv = file->private_data;
+ char buf[1];
+
+ if (!count)
+ return -EINVAL;
+ if (copy_from_user(buf, user_buf, 1))
+ return -EFAULT;
+
+ if (buf[0] == '1')
+ priv->wsm_enable_wsm_dumps = 1;
+ else
+ priv->wsm_enable_wsm_dumps = 0;
+
+ return count;
+}
+
+static const struct file_operations fops_wsm_dumps = {
+ .open = simple_open,
+ .write = cw1200_wsm_dumps,
+ .llseek = default_llseek,
+};
+
+int cw1200_debug_init(struct cw1200_common *priv)
+{
+ int ret = -ENOMEM;
+ struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
+ GFP_KERNEL);
+ priv->debug = d;
+ if (!d)
+ return ret;
+
+ d->debugfs_phy = debugfs_create_dir("cw1200",
+ priv->hw->wiphy->debugfsdir);
+ if (!d->debugfs_phy)
+ goto err;
+
+ if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
+ priv, &fops_status))
+ goto err;
+
+ if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
+ priv, &fops_counters))
+ goto err;
+
+ if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
+ priv, &fops_wsm_dumps))
+ goto err;
+
+ return 0;
+
+err:
+ priv->debug = NULL;
+ debugfs_remove_recursive(d->debugfs_phy);
+ kfree(d);
+ return ret;
+}
+
+void cw1200_debug_release(struct cw1200_common *priv)
+{
+ struct cw1200_debug_priv *d = priv->debug;
+ if (d) {
+ debugfs_remove_recursive(d->debugfs_phy);
+ priv->debug = NULL;
+ kfree(d);
+ }
+}
--- /dev/null
+/*
+ * DebugFS code for ST-Ericsson CW1200 mac80211 driver
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_DEBUG_H_INCLUDED
+#define CW1200_DEBUG_H_INCLUDED
+
+struct cw1200_debug_priv {
+ struct dentry *debugfs_phy;
+ int tx;
+ int tx_agg;
+ int rx;
+ int rx_agg;
+ int tx_multi;
+ int tx_multi_frames;
+ int tx_cache_miss;
+ int tx_align;
+ int tx_ttl;
+ int tx_burst;
+ int ba_cnt;
+ int ba_acc;
+ int ba_cnt_rx;
+ int ba_acc_rx;
+};
+
+int cw1200_debug_init(struct cw1200_common *priv);
+void cw1200_debug_release(struct cw1200_common *priv);
+
+static inline void cw1200_debug_txed(struct cw1200_common *priv)
+{
+ ++priv->debug->tx;
+}
+
+static inline void cw1200_debug_txed_agg(struct cw1200_common *priv)
+{
+ ++priv->debug->tx_agg;
+}
+
+static inline void cw1200_debug_txed_multi(struct cw1200_common *priv,
+ int count)
+{
+ ++priv->debug->tx_multi;
+ priv->debug->tx_multi_frames += count;
+}
+
+static inline void cw1200_debug_rxed(struct cw1200_common *priv)
+{
+ ++priv->debug->rx;
+}
+
+static inline void cw1200_debug_rxed_agg(struct cw1200_common *priv)
+{
+ ++priv->debug->rx_agg;
+}
+
+static inline void cw1200_debug_tx_cache_miss(struct cw1200_common *priv)
+{
+ ++priv->debug->tx_cache_miss;
+}
+
+static inline void cw1200_debug_tx_align(struct cw1200_common *priv)
+{
+ ++priv->debug->tx_align;
+}
+
+static inline void cw1200_debug_tx_ttl(struct cw1200_common *priv)
+{
+ ++priv->debug->tx_ttl;
+}
+
+static inline void cw1200_debug_tx_burst(struct cw1200_common *priv)
+{
+ ++priv->debug->tx_burst;
+}
+
+static inline void cw1200_debug_ba(struct cw1200_common *priv,
+ int ba_cnt, int ba_acc,
+ int ba_cnt_rx, int ba_acc_rx)
+{
+ priv->debug->ba_cnt = ba_cnt;
+ priv->debug->ba_acc = ba_acc;
+ priv->debug->ba_cnt_rx = ba_cnt_rx;
+ priv->debug->ba_acc_rx = ba_acc_rx;
+}
+
+#endif /* CW1200_DEBUG_H_INCLUDED */
--- /dev/null
+/*
+ * Firmware I/O code for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+
+#include "cw1200.h"
+#include "fwio.h"
+#include "hwio.h"
+#include "hwbus.h"
+#include "bh.h"
+
+static int cw1200_get_hw_type(u32 config_reg_val, int *major_revision)
+{
+ int hw_type = -1;
+ u32 silicon_type = (config_reg_val >> 24) & 0x7;
+ u32 silicon_vers = (config_reg_val >> 31) & 0x1;
+
+ switch (silicon_type) {
+ case 0x00:
+ *major_revision = 1;
+ hw_type = HIF_9000_SILICON_VERSATILE;
+ break;
+ case 0x01:
+ case 0x02: /* CW1x00 */
+ case 0x04: /* CW1x60 */
+ *major_revision = silicon_type;
+ if (silicon_vers)
+ hw_type = HIF_8601_VERSATILE;
+ else
+ hw_type = HIF_8601_SILICON;
+ break;
+ default:
+ break;
+ }
+
+ return hw_type;
+}
+
+static int cw1200_load_firmware_cw1200(struct cw1200_common *priv)
+{
+ int ret, block, num_blocks;
+ unsigned i;
+ u32 val32;
+ u32 put = 0, get = 0;
+ u8 *buf = NULL;
+ const char *fw_path;
+ const struct firmware *firmware = NULL;
+
+ /* Macroses are local. */
+#define APB_WRITE(reg, val) \
+ do { \
+ ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \
+ if (ret < 0) \
+ goto exit; \
+ } while (0)
+#define APB_WRITE2(reg, val) \
+ do { \
+ ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \
+ if (ret < 0) \
+ goto free_buffer; \
+ } while (0)
+#define APB_READ(reg, val) \
+ do { \
+ ret = cw1200_apb_read_32(priv, CW1200_APB(reg), &(val)); \
+ if (ret < 0) \
+ goto free_buffer; \
+ } while (0)
+#define REG_WRITE(reg, val) \
+ do { \
+ ret = cw1200_reg_write_32(priv, (reg), (val)); \
+ if (ret < 0) \
+ goto exit; \
+ } while (0)
+#define REG_READ(reg, val) \
+ do { \
+ ret = cw1200_reg_read_32(priv, (reg), &(val)); \
+ if (ret < 0) \
+ goto exit; \
+ } while (0)
+
+ switch (priv->hw_revision) {
+ case CW1200_HW_REV_CUT10:
+ fw_path = FIRMWARE_CUT10;
+ if (!priv->sdd_path)
+ priv->sdd_path = SDD_FILE_10;
+ break;
+ case CW1200_HW_REV_CUT11:
+ fw_path = FIRMWARE_CUT11;
+ if (!priv->sdd_path)
+ priv->sdd_path = SDD_FILE_11;
+ break;
+ case CW1200_HW_REV_CUT20:
+ fw_path = FIRMWARE_CUT20;
+ if (!priv->sdd_path)
+ priv->sdd_path = SDD_FILE_20;
+ break;
+ case CW1200_HW_REV_CUT22:
+ fw_path = FIRMWARE_CUT22;
+ if (!priv->sdd_path)
+ priv->sdd_path = SDD_FILE_22;
+ break;
+ case CW1X60_HW_REV:
+ fw_path = FIRMWARE_CW1X60;
+ if (!priv->sdd_path)
+ priv->sdd_path = SDD_FILE_CW1X60;
+ break;
+ default:
+ pr_err("Invalid silicon revision %d.\n", priv->hw_revision);
+ return -EINVAL;
+ }
+
+ /* Initialize common registers */
+ APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, DOWNLOAD_ARE_YOU_HERE);
+ APB_WRITE(DOWNLOAD_PUT_REG, 0);
+ APB_WRITE(DOWNLOAD_GET_REG, 0);
+ APB_WRITE(DOWNLOAD_STATUS_REG, DOWNLOAD_PENDING);
+ APB_WRITE(DOWNLOAD_FLAGS_REG, 0);
+
+ /* Write the NOP Instruction */
+ REG_WRITE(ST90TDS_SRAM_BASE_ADDR_REG_ID, 0xFFF20000);
+ REG_WRITE(ST90TDS_AHB_DPORT_REG_ID, 0xEAFFFFFE);
+
+ /* Release CPU from RESET */
+ REG_READ(ST90TDS_CONFIG_REG_ID, val32);
+ val32 &= ~ST90TDS_CONFIG_CPU_RESET_BIT;
+ REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
+
+ /* Enable Clock */
+ val32 &= ~ST90TDS_CONFIG_CPU_CLK_DIS_BIT;
+ REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
+
+ /* Load a firmware file */
+ ret = request_firmware(&firmware, fw_path, priv->pdev);
+ if (ret) {
+ pr_err("Can't load firmware file %s.\n", fw_path);
+ goto exit;
+ }
+
+ buf = kmalloc(DOWNLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
+ if (!buf) {
+ pr_err("Can't allocate firmware load buffer.\n");
+ ret = -ENOMEM;
+ goto firmware_release;
+ }
+
+ /* Check if the bootloader is ready */
+ for (i = 0; i < 100; i += 1 + i / 2) {
+ APB_READ(DOWNLOAD_IMAGE_SIZE_REG, val32);
+ if (val32 == DOWNLOAD_I_AM_HERE)
+ break;
+ mdelay(i);
+ } /* End of for loop */
+
+ if (val32 != DOWNLOAD_I_AM_HERE) {
+ pr_err("Bootloader is not ready.\n");
+ ret = -ETIMEDOUT;
+ goto free_buffer;
+ }
+
+ /* Calculcate number of download blocks */
+ num_blocks = (firmware->size - 1) / DOWNLOAD_BLOCK_SIZE + 1;
+
+ /* Updating the length in Download Ctrl Area */
+ val32 = firmware->size; /* Explicit cast from size_t to u32 */
+ APB_WRITE2(DOWNLOAD_IMAGE_SIZE_REG, val32);
+
+ /* Firmware downloading loop */
+ for (block = 0; block < num_blocks; block++) {
+ size_t tx_size;
+ size_t block_size;
+
+ /* check the download status */
+ APB_READ(DOWNLOAD_STATUS_REG, val32);
+ if (val32 != DOWNLOAD_PENDING) {
+ pr_err("Bootloader reported error %d.\n", val32);
+ ret = -EIO;
+ goto free_buffer;
+ }
+
+ /* loop until put - get <= 24K */
+ for (i = 0; i < 100; i++) {
+ APB_READ(DOWNLOAD_GET_REG, get);
+ if ((put - get) <=
+ (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE))
+ break;
+ mdelay(i);
+ }
+
+ if ((put - get) > (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE)) {
+ pr_err("Timeout waiting for FIFO.\n");
+ ret = -ETIMEDOUT;
+ goto free_buffer;
+ }
+
+ /* calculate the block size */
+ tx_size = block_size = min_t(size_t, firmware->size - put,
+ DOWNLOAD_BLOCK_SIZE);
+
+ memcpy(buf, &firmware->data[put], block_size);
+ if (block_size < DOWNLOAD_BLOCK_SIZE) {
+ memset(&buf[block_size], 0,
+ DOWNLOAD_BLOCK_SIZE - block_size);
+ tx_size = DOWNLOAD_BLOCK_SIZE;
+ }
+
+ /* send the block to sram */
+ ret = cw1200_apb_write(priv,
+ CW1200_APB(DOWNLOAD_FIFO_OFFSET +
+ (put & (DOWNLOAD_FIFO_SIZE - 1))),
+ buf, tx_size);
+ if (ret < 0) {
+ pr_err("Can't write firmware block @ %d!\n",
+ put & (DOWNLOAD_FIFO_SIZE - 1));
+ goto free_buffer;
+ }
+
+ /* update the put register */
+ put += block_size;
+ APB_WRITE2(DOWNLOAD_PUT_REG, put);
+ } /* End of firmware download loop */
+
+ /* Wait for the download completion */
+ for (i = 0; i < 300; i += 1 + i / 2) {
+ APB_READ(DOWNLOAD_STATUS_REG, val32);
+ if (val32 != DOWNLOAD_PENDING)
+ break;
+ mdelay(i);
+ }
+ if (val32 != DOWNLOAD_SUCCESS) {
+ pr_err("Wait for download completion failed: 0x%.8X\n", val32);
+ ret = -ETIMEDOUT;
+ goto free_buffer;
+ } else {
+ pr_info("Firmware download completed.\n");
+ ret = 0;
+ }
+
+free_buffer:
+ kfree(buf);
+firmware_release:
+ release_firmware(firmware);
+exit:
+ return ret;
+
+#undef APB_WRITE
+#undef APB_WRITE2
+#undef APB_READ
+#undef REG_WRITE
+#undef REG_READ
+}
+
+
+static int config_reg_read(struct cw1200_common *priv, u32 *val)
+{
+ switch (priv->hw_type) {
+ case HIF_9000_SILICON_VERSATILE: {
+ u16 val16;
+ int ret = cw1200_reg_read_16(priv,
+ ST90TDS_CONFIG_REG_ID,
+ &val16);
+ if (ret < 0)
+ return ret;
+ *val = val16;
+ return 0;
+ }
+ case HIF_8601_VERSATILE:
+ case HIF_8601_SILICON:
+ default:
+ cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, val);
+ break;
+ }
+ return 0;
+}
+
+static int config_reg_write(struct cw1200_common *priv, u32 val)
+{
+ switch (priv->hw_type) {
+ case HIF_9000_SILICON_VERSATILE:
+ return cw1200_reg_write_16(priv,
+ ST90TDS_CONFIG_REG_ID,
+ (u16)val);
+ case HIF_8601_VERSATILE:
+ case HIF_8601_SILICON:
+ default:
+ return cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val);
+ }
+ return 0;
+}
+
+int cw1200_load_firmware(struct cw1200_common *priv)
+{
+ int ret;
+ int i;
+ u32 val32;
+ u16 val16;
+ int major_revision = -1;
+
+ /* Read CONFIG Register */
+ ret = cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+ if (ret < 0) {
+ pr_err("Can't read config register.\n");
+ goto out;
+ }
+
+ if (val32 == 0 || val32 == 0xffffffff) {
+ pr_err("Bad config register value (0x%08x)\n", val32);
+ ret = -EIO;
+ goto out;
+ }
+
+ priv->hw_type = cw1200_get_hw_type(val32, &major_revision);
+ if (priv->hw_type < 0) {
+ pr_err("Can't deduce hardware type.\n");
+ ret = -ENOTSUPP;
+ goto out;
+ }
+
+ /* Set DPLL Reg value, and read back to confirm writes work */
+ ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
+ cw1200_dpll_from_clk(priv->hw_refclk));
+ if (ret < 0) {
+ pr_err("Can't write DPLL register.\n");
+ goto out;
+ }
+
+ msleep(20);
+
+ ret = cw1200_reg_read_32(priv,
+ ST90TDS_TSET_GEN_R_W_REG_ID, &val32);
+ if (ret < 0) {
+ pr_err("Can't read DPLL register.\n");
+ goto out;
+ }
+
+ if (val32 != cw1200_dpll_from_clk(priv->hw_refclk)) {
+ pr_err("Unable to initialise DPLL register. Wrote 0x%.8X, Read 0x%.8X.\n",
+ cw1200_dpll_from_clk(priv->hw_refclk), val32);
+ ret = -EIO;
+ goto out;
+ }
+
+ /* Set wakeup bit in device */
+ ret = cw1200_reg_read_16(priv, ST90TDS_CONTROL_REG_ID, &val16);
+ if (ret < 0) {
+ pr_err("set_wakeup: can't read control register.\n");
+ goto out;
+ }
+
+ ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
+ val16 | ST90TDS_CONT_WUP_BIT);
+ if (ret < 0) {
+ pr_err("set_wakeup: can't write control register.\n");
+ goto out;
+ }
+
+ /* Wait for wakeup */
+ for (i = 0; i < 300; i += (1 + i / 2)) {
+ ret = cw1200_reg_read_16(priv,
+ ST90TDS_CONTROL_REG_ID, &val16);
+ if (ret < 0) {
+ pr_err("wait_for_wakeup: can't read control register.\n");
+ goto out;
+ }
+
+ if (val16 & ST90TDS_CONT_RDY_BIT)
+ break;
+
+ msleep(i);
+ }
+
+ if ((val16 & ST90TDS_CONT_RDY_BIT) == 0) {
+ pr_err("wait_for_wakeup: device is not responding.\n");
+ ret = -ETIMEDOUT;
+ goto out;
+ }
+
+ switch (major_revision) {
+ case 1:
+ /* CW1200 Hardware detection logic : Check for CUT1.1 */
+ ret = cw1200_ahb_read_32(priv, CW1200_CUT_ID_ADDR, &val32);
+ if (ret) {
+ pr_err("HW detection: can't read CUT ID.\n");
+ goto out;
+ }
+
+ switch (val32) {
+ case CW1200_CUT_11_ID_STR:
+ pr_info("CW1x00 Cut 1.1 silicon detected.\n");
+ priv->hw_revision = CW1200_HW_REV_CUT11;
+ break;
+ default:
+ pr_info("CW1x00 Cut 1.0 silicon detected.\n");
+ priv->hw_revision = CW1200_HW_REV_CUT10;
+ break;
+ }
+
+ /* According to ST-E, CUT<2.0 has busted BA TID0-3.
+ Just disable it entirely...
+ */
+ priv->ba_rx_tid_mask = 0;
+ priv->ba_tx_tid_mask = 0;
+ break;
+ case 2: {
+ u32 ar1, ar2, ar3;
+ ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR, &ar1);
+ if (ret) {
+ pr_err("(1) HW detection: can't read CUT ID\n");
+ goto out;
+ }
+ ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 4, &ar2);
+ if (ret) {
+ pr_err("(2) HW detection: can't read CUT ID.\n");
+ goto out;
+ }
+
+ ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 8, &ar3);
+ if (ret) {
+ pr_err("(3) HW detection: can't read CUT ID.\n");
+ goto out;
+ }
+
+ if (ar1 == CW1200_CUT_22_ID_STR1 &&
+ ar2 == CW1200_CUT_22_ID_STR2 &&
+ ar3 == CW1200_CUT_22_ID_STR3) {
+ pr_info("CW1x00 Cut 2.2 silicon detected.\n");
+ priv->hw_revision = CW1200_HW_REV_CUT22;
+ } else {
+ pr_info("CW1x00 Cut 2.0 silicon detected.\n");
+ priv->hw_revision = CW1200_HW_REV_CUT20;
+ }
+ break;
+ }
+ case 4:
+ pr_info("CW1x60 silicon detected.\n");
+ priv->hw_revision = CW1X60_HW_REV;
+ break;
+ default:
+ pr_err("Unsupported silicon major revision %d.\n",
+ major_revision);
+ ret = -ENOTSUPP;
+ goto out;
+ }
+
+ /* Checking for access mode */
+ ret = config_reg_read(priv, &val32);
+ if (ret < 0) {
+ pr_err("Can't read config register.\n");
+ goto out;
+ }
+
+ if (!(val32 & ST90TDS_CONFIG_ACCESS_MODE_BIT)) {
+ pr_err("Device is already in QUEUE mode!\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (priv->hw_type) {
+ case HIF_8601_SILICON:
+ if (priv->hw_revision == CW1X60_HW_REV) {
+ pr_err("Can't handle CW1160/1260 firmware load yet.\n");
+ ret = -ENOTSUPP;
+ goto out;
+ }
+ ret = cw1200_load_firmware_cw1200(priv);
+ break;
+ default:
+ pr_err("Can't perform firmware load for hw type %d.\n",
+ priv->hw_type);
+ ret = -ENOTSUPP;
+ goto out;
+ }
+ if (ret < 0) {
+ pr_err("Firmware load error.\n");
+ goto out;
+ }
+
+ /* Enable interrupt signalling */
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ ret = __cw1200_irq_enable(priv, 1);
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ if (ret < 0)
+ goto unsubscribe;
+
+ /* Configure device for MESSSAGE MODE */
+ ret = config_reg_read(priv, &val32);
+ if (ret < 0) {
+ pr_err("Can't read config register.\n");
+ goto unsubscribe;
+ }
+ ret = config_reg_write(priv, val32 & ~ST90TDS_CONFIG_ACCESS_MODE_BIT);
+ if (ret < 0) {
+ pr_err("Can't write config register.\n");
+ goto unsubscribe;
+ }
+
+ /* Unless we read the CONFIG Register we are
+ * not able to get an interrupt
+ */
+ mdelay(10);
+ config_reg_read(priv, &val32);
+
+out:
+ return ret;
+
+unsubscribe:
+ /* Disable interrupt signalling */
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ ret = __cw1200_irq_enable(priv, 0);
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
--- /dev/null
+/*
+ * Firmware API for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef FWIO_H_INCLUDED
+#define FWIO_H_INCLUDED
+
+#define BOOTLOADER_CW1X60 "boot_cw1x60.bin"
+#define FIRMWARE_CW1X60 "wsm_cw1x60.bin"
+#define FIRMWARE_CUT22 "wsm_22.bin"
+#define FIRMWARE_CUT20 "wsm_20.bin"
+#define FIRMWARE_CUT11 "wsm_11.bin"
+#define FIRMWARE_CUT10 "wsm_10.bin"
+#define SDD_FILE_CW1X60 "sdd_cw1x60.bin"
+#define SDD_FILE_22 "sdd_22.bin"
+#define SDD_FILE_20 "sdd_20.bin"
+#define SDD_FILE_11 "sdd_11.bin"
+#define SDD_FILE_10 "sdd_10.bin"
+
+int cw1200_load_firmware(struct cw1200_common *priv);
+
+/* SDD definitions */
+#define SDD_PTA_CFG_ELT_ID 0xEB
+#define SDD_REFERENCE_FREQUENCY_ELT_ID 0xc5
+u32 cw1200_dpll_from_clk(u16 clk);
+
+#endif
--- /dev/null
+/*
+ * Common hwbus abstraction layer interface for cw1200 wireless driver
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_HWBUS_H
+#define CW1200_HWBUS_H
+
+struct hwbus_priv;
+
+void cw1200_irq_handler(struct cw1200_common *priv);
+
+/* This MUST be wrapped with hwbus_ops->lock/unlock! */
+int __cw1200_irq_enable(struct cw1200_common *priv, int enable);
+
+struct hwbus_ops {
+ int (*hwbus_memcpy_fromio)(struct hwbus_priv *self, unsigned int addr,
+ void *dst, int count);
+ int (*hwbus_memcpy_toio)(struct hwbus_priv *self, unsigned int addr,
+ const void *src, int count);
+ void (*lock)(struct hwbus_priv *self);
+ void (*unlock)(struct hwbus_priv *self);
+ size_t (*align_size)(struct hwbus_priv *self, size_t size);
+ int (*power_mgmt)(struct hwbus_priv *self, bool suspend);
+};
+
+#endif /* CW1200_HWBUS_H */
--- /dev/null
+/*
+ * Low-level device IO routines for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver, which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+
+#include "cw1200.h"
+#include "hwio.h"
+#include "hwbus.h"
+
+ /* Sdio addr is 4*spi_addr */
+#define SPI_REG_ADDR_TO_SDIO(spi_reg_addr) ((spi_reg_addr) << 2)
+#define SDIO_ADDR17BIT(buf_id, mpf, rfu, reg_id_ofs) \
+ ((((buf_id) & 0x1F) << 7) \
+ | (((mpf) & 1) << 6) \
+ | (((rfu) & 1) << 5) \
+ | (((reg_id_ofs) & 0x1F) << 0))
+#define MAX_RETRY 3
+
+
+static int __cw1200_reg_read(struct cw1200_common *priv, u16 addr,
+ void *buf, size_t buf_len, int buf_id)
+{
+ u16 addr_sdio;
+ u32 sdio_reg_addr_17bit;
+
+ /* Check if buffer is aligned to 4 byte boundary */
+ if (WARN_ON(((unsigned long)buf & 3) && (buf_len > 4))) {
+ pr_err("buffer is not aligned.\n");
+ return -EINVAL;
+ }
+
+ /* Convert to SDIO Register Address */
+ addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
+ sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
+
+ return priv->hwbus_ops->hwbus_memcpy_fromio(priv->hwbus_priv,
+ sdio_reg_addr_17bit,
+ buf, buf_len);
+}
+
+static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
+ const void *buf, size_t buf_len, int buf_id)
+{
+ u16 addr_sdio;
+ u32 sdio_reg_addr_17bit;
+
+ /* Convert to SDIO Register Address */
+ addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
+ sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
+
+ return priv->hwbus_ops->hwbus_memcpy_toio(priv->hwbus_priv,
+ sdio_reg_addr_17bit,
+ buf, buf_len);
+}
+
+static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
+ u16 addr, u32 *val)
+{
+ __le32 tmp;
+ int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
+ *val = le32_to_cpu(tmp);
+ return i;
+}
+
+static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
+ u16 addr, u32 val)
+{
+ __le32 tmp = cpu_to_le32(val);
+ return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
+}
+
+static inline int __cw1200_reg_read_16(struct cw1200_common *priv,
+ u16 addr, u16 *val)
+{
+ __le16 tmp;
+ int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
+ *val = le16_to_cpu(tmp);
+ return i;
+}
+
+static inline int __cw1200_reg_write_16(struct cw1200_common *priv,
+ u16 addr, u16 val)
+{
+ __le16 tmp = cpu_to_le16(val);
+ return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
+}
+
+int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
+ size_t buf_len)
+{
+ int ret;
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
+
+int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
+ size_t buf_len)
+{
+ int ret;
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
+
+int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
+{
+ int ret, retry = 1;
+ int buf_id_rx = priv->buf_id_rx;
+
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+
+ while (retry <= MAX_RETRY) {
+ ret = __cw1200_reg_read(priv,
+ ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
+ buf_len, buf_id_rx + 1);
+ if (!ret) {
+ buf_id_rx = (buf_id_rx + 1) & 3;
+ priv->buf_id_rx = buf_id_rx;
+ break;
+ } else {
+ retry++;
+ mdelay(1);
+ pr_err("error :[%d]\n", ret);
+ }
+ }
+
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
+
+int cw1200_data_write(struct cw1200_common *priv, const void *buf,
+ size_t buf_len)
+{
+ int ret, retry = 1;
+ int buf_id_tx = priv->buf_id_tx;
+
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+
+ while (retry <= MAX_RETRY) {
+ ret = __cw1200_reg_write(priv,
+ ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
+ buf_len, buf_id_tx);
+ if (!ret) {
+ buf_id_tx = (buf_id_tx + 1) & 31;
+ priv->buf_id_tx = buf_id_tx;
+ break;
+ } else {
+ retry++;
+ mdelay(1);
+ pr_err("error :[%d]\n", ret);
+ }
+ }
+
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
+
+int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
+ size_t buf_len, u32 prefetch, u16 port_addr)
+{
+ u32 val32 = 0;
+ int i, ret;
+
+ if ((buf_len / 2) >= 0x1000) {
+ pr_err("Can't read more than 0xfff words.\n");
+ return -EINVAL;
+ }
+
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+ /* Write address */
+ ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
+ if (ret < 0) {
+ pr_err("Can't write address register.\n");
+ goto out;
+ }
+
+ /* Read CONFIG Register Value - We will read 32 bits */
+ ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+ if (ret < 0) {
+ pr_err("Can't read config register.\n");
+ goto out;
+ }
+
+ /* Set PREFETCH bit */
+ ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID,
+ val32 | prefetch);
+ if (ret < 0) {
+ pr_err("Can't write prefetch bit.\n");
+ goto out;
+ }
+
+ /* Check for PRE-FETCH bit to be cleared */
+ for (i = 0; i < 20; i++) {
+ ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+ if (ret < 0) {
+ pr_err("Can't check prefetch bit.\n");
+ goto out;
+ }
+ if (!(val32 & prefetch))
+ break;
+
+ mdelay(i);
+ }
+
+ if (val32 & prefetch) {
+ pr_err("Prefetch bit is not cleared.\n");
+ goto out;
+ }
+
+ /* Read data port */
+ ret = __cw1200_reg_read(priv, port_addr, buf, buf_len, 0);
+ if (ret < 0) {
+ pr_err("Can't read data port.\n");
+ goto out;
+ }
+
+out:
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
+
+int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
+ size_t buf_len)
+{
+ int ret;
+
+ if ((buf_len / 2) >= 0x1000) {
+ pr_err("Can't write more than 0xfff words.\n");
+ return -EINVAL;
+ }
+
+ priv->hwbus_ops->lock(priv->hwbus_priv);
+
+ /* Write address */
+ ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
+ if (ret < 0) {
+ pr_err("Can't write address register.\n");
+ goto out;
+ }
+
+ /* Write data port */
+ ret = __cw1200_reg_write(priv, ST90TDS_SRAM_DPORT_REG_ID,
+ buf, buf_len, 0);
+ if (ret < 0) {
+ pr_err("Can't write data port.\n");
+ goto out;
+ }
+
+out:
+ priv->hwbus_ops->unlock(priv->hwbus_priv);
+ return ret;
+}
+
+int __cw1200_irq_enable(struct cw1200_common *priv, int enable)
+{
+ u32 val32;
+ u16 val16;
+ int ret;
+
+ if (HIF_8601_SILICON == priv->hw_type) {
+ ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+ if (ret < 0) {
+ pr_err("Can't read config register.\n");
+ return ret;
+ }
+
+ if (enable)
+ val32 |= ST90TDS_CONF_IRQ_RDY_ENABLE;
+ else
+ val32 &= ~ST90TDS_CONF_IRQ_RDY_ENABLE;
+
+ ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val32);
+ if (ret < 0) {
+ pr_err("Can't write config register.\n");
+ return ret;
+ }
+ } else {
+ ret = __cw1200_reg_read_16(priv, ST90TDS_CONFIG_REG_ID, &val16);
+ if (ret < 0) {
+ pr_err("Can't read control register.\n");
+ return ret;
+ }
+
+ if (enable)
+ val16 |= ST90TDS_CONT_IRQ_RDY_ENABLE;
+ else
+ val16 &= ~ST90TDS_CONT_IRQ_RDY_ENABLE;
+
+ ret = __cw1200_reg_write_16(priv, ST90TDS_CONFIG_REG_ID, val16);
+ if (ret < 0) {
+ pr_err("Can't write control register.\n");
+ return ret;
+ }
+ }
+ return 0;
+}
--- /dev/null
+/*
+ * Low-level API for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_HWIO_H_INCLUDED
+#define CW1200_HWIO_H_INCLUDED
+
+/* extern */ struct cw1200_common;
+
+#define CW1200_CUT_11_ID_STR (0x302E3830)
+#define CW1200_CUT_22_ID_STR1 (0x302e3132)
+#define CW1200_CUT_22_ID_STR2 (0x32302e30)
+#define CW1200_CUT_22_ID_STR3 (0x3335)
+#define CW1200_CUT_ID_ADDR (0xFFF17F90)
+#define CW1200_CUT2_ID_ADDR (0xFFF1FF90)
+
+/* Download control area */
+/* boot loader start address in SRAM */
+#define DOWNLOAD_BOOT_LOADER_OFFSET (0x00000000)
+/* 32K, 0x4000 to 0xDFFF */
+#define DOWNLOAD_FIFO_OFFSET (0x00004000)
+/* 32K */
+#define DOWNLOAD_FIFO_SIZE (0x00008000)
+/* 128 bytes, 0xFF80 to 0xFFFF */
+#define DOWNLOAD_CTRL_OFFSET (0x0000FF80)
+#define DOWNLOAD_CTRL_DATA_DWORDS (32-6)
+
+struct download_cntl_t {
+ /* size of whole firmware file (including Cheksum), host init */
+ u32 image_size;
+ /* downloading flags */
+ u32 flags;
+ /* No. of bytes put into the download, init & updated by host */
+ u32 put;
+ /* last traced program counter, last ARM reg_pc */
+ u32 trace_pc;
+ /* No. of bytes read from the download, host init, device updates */
+ u32 get;
+ /* r0, boot losader status, host init to pending, device updates */
+ u32 status;
+ /* Extra debug info, r1 to r14 if status=r0=DOWNLOAD_EXCEPTION */
+ u32 debug_data[DOWNLOAD_CTRL_DATA_DWORDS];
+};
+
+#define DOWNLOAD_IMAGE_SIZE_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, image_size))
+#define DOWNLOAD_FLAGS_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, flags))
+#define DOWNLOAD_PUT_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, put))
+#define DOWNLOAD_TRACE_PC_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, trace_pc))
+#define DOWNLOAD_GET_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, get))
+#define DOWNLOAD_STATUS_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, status))
+#define DOWNLOAD_DEBUG_DATA_REG \
+ (DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, debug_data))
+#define DOWNLOAD_DEBUG_DATA_LEN (108)
+
+#define DOWNLOAD_BLOCK_SIZE (1024)
+
+/* For boot loader detection */
+#define DOWNLOAD_ARE_YOU_HERE (0x87654321)
+#define DOWNLOAD_I_AM_HERE (0x12345678)
+
+/* Download error code */
+#define DOWNLOAD_PENDING (0xFFFFFFFF)
+#define DOWNLOAD_SUCCESS (0)
+#define DOWNLOAD_EXCEPTION (1)
+#define DOWNLOAD_ERR_MEM_1 (2)
+#define DOWNLOAD_ERR_MEM_2 (3)
+#define DOWNLOAD_ERR_SOFTWARE (4)
+#define DOWNLOAD_ERR_FILE_SIZE (5)
+#define DOWNLOAD_ERR_CHECKSUM (6)
+#define DOWNLOAD_ERR_OVERFLOW (7)
+#define DOWNLOAD_ERR_IMAGE (8)
+#define DOWNLOAD_ERR_HOST (9)
+#define DOWNLOAD_ERR_ABORT (10)
+
+
+#define SYS_BASE_ADDR_SILICON (0)
+#define PAC_BASE_ADDRESS_SILICON (SYS_BASE_ADDR_SILICON + 0x09000000)
+#define PAC_SHARED_MEMORY_SILICON (PAC_BASE_ADDRESS_SILICON)
+
+#define CW1200_APB(addr) (PAC_SHARED_MEMORY_SILICON + (addr))
+
+/* Device register definitions */
+
+/* WBF - SPI Register Addresses */
+#define ST90TDS_ADDR_ID_BASE (0x0000)
+/* 16/32 bits */
+#define ST90TDS_CONFIG_REG_ID (0x0000)
+/* 16/32 bits */
+#define ST90TDS_CONTROL_REG_ID (0x0001)
+/* 16 bits, Q mode W/R */
+#define ST90TDS_IN_OUT_QUEUE_REG_ID (0x0002)
+/* 32 bits, AHB bus R/W */
+#define ST90TDS_AHB_DPORT_REG_ID (0x0003)
+/* 16/32 bits */
+#define ST90TDS_SRAM_BASE_ADDR_REG_ID (0x0004)
+/* 32 bits, APB bus R/W */
+#define ST90TDS_SRAM_DPORT_REG_ID (0x0005)
+/* 32 bits, t_settle/general */
+#define ST90TDS_TSET_GEN_R_W_REG_ID (0x0006)
+/* 16 bits, Q mode read, no length */
+#define ST90TDS_FRAME_OUT_REG_ID (0x0007)
+#define ST90TDS_ADDR_ID_MAX (ST90TDS_FRAME_OUT_REG_ID)
+
+/* WBF - Control register bit set */
+/* next o/p length, bit 11 to 0 */
+#define ST90TDS_CONT_NEXT_LEN_MASK (0x0FFF)
+#define ST90TDS_CONT_WUP_BIT (BIT(12))
+#define ST90TDS_CONT_RDY_BIT (BIT(13))
+#define ST90TDS_CONT_IRQ_ENABLE (BIT(14))
+#define ST90TDS_CONT_RDY_ENABLE (BIT(15))
+#define ST90TDS_CONT_IRQ_RDY_ENABLE (BIT(14)|BIT(15))
+
+/* SPI Config register bit set */
+#define ST90TDS_CONFIG_FRAME_BIT (BIT(2))
+#define ST90TDS_CONFIG_WORD_MODE_BITS (BIT(3)|BIT(4))
+#define ST90TDS_CONFIG_WORD_MODE_1 (BIT(3))
+#define ST90TDS_CONFIG_WORD_MODE_2 (BIT(4))
+#define ST90TDS_CONFIG_ERROR_0_BIT (BIT(5))
+#define ST90TDS_CONFIG_ERROR_1_BIT (BIT(6))
+#define ST90TDS_CONFIG_ERROR_2_BIT (BIT(7))
+/* TBD: Sure??? */
+#define ST90TDS_CONFIG_CSN_FRAME_BIT (BIT(7))
+#define ST90TDS_CONFIG_ERROR_3_BIT (BIT(8))
+#define ST90TDS_CONFIG_ERROR_4_BIT (BIT(9))
+/* QueueM */
+#define ST90TDS_CONFIG_ACCESS_MODE_BIT (BIT(10))
+/* AHB bus */
+#define ST90TDS_CONFIG_AHB_PRFETCH_BIT (BIT(11))
+#define ST90TDS_CONFIG_CPU_CLK_DIS_BIT (BIT(12))
+/* APB bus */
+#define ST90TDS_CONFIG_PRFETCH_BIT (BIT(13))
+/* cpu reset */
+#define ST90TDS_CONFIG_CPU_RESET_BIT (BIT(14))
+#define ST90TDS_CONFIG_CLEAR_INT_BIT (BIT(15))
+
+/* For CW1200 the IRQ Enable and Ready Bits are in CONFIG register */
+#define ST90TDS_CONF_IRQ_ENABLE (BIT(16))
+#define ST90TDS_CONF_RDY_ENABLE (BIT(17))
+#define ST90TDS_CONF_IRQ_RDY_ENABLE (BIT(16)|BIT(17))
+
+int cw1200_data_read(struct cw1200_common *priv,
+ void *buf, size_t buf_len);
+int cw1200_data_write(struct cw1200_common *priv,
+ const void *buf, size_t buf_len);
+
+int cw1200_reg_read(struct cw1200_common *priv, u16 addr,
+ void *buf, size_t buf_len);
+int cw1200_reg_write(struct cw1200_common *priv, u16 addr,
+ const void *buf, size_t buf_len);
+
+static inline int cw1200_reg_read_16(struct cw1200_common *priv,
+ u16 addr, u16 *val)
+{
+ __le32 tmp;
+ int i;
+ i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
+ *val = le32_to_cpu(tmp) & 0xfffff;
+ return i;
+}
+
+static inline int cw1200_reg_write_16(struct cw1200_common *priv,
+ u16 addr, u16 val)
+{
+ __le32 tmp = cpu_to_le32((u32)val);
+ return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
+}
+
+static inline int cw1200_reg_read_32(struct cw1200_common *priv,
+ u16 addr, u32 *val)
+{
+ __le32 tmp;
+ int i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
+ *val = le32_to_cpu(tmp);
+ return i;
+}
+
+static inline int cw1200_reg_write_32(struct cw1200_common *priv,
+ u16 addr, u32 val)
+{
+ __le32 tmp = cpu_to_le32(val);
+ return cw1200_reg_write(priv, addr, &tmp, sizeof(val));
+}
+
+int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
+ size_t buf_len, u32 prefetch, u16 port_addr);
+int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
+ size_t buf_len);
+
+static inline int cw1200_apb_read(struct cw1200_common *priv, u32 addr,
+ void *buf, size_t buf_len)
+{
+ return cw1200_indirect_read(priv, addr, buf, buf_len,
+ ST90TDS_CONFIG_PRFETCH_BIT,
+ ST90TDS_SRAM_DPORT_REG_ID);
+}
+
+static inline int cw1200_ahb_read(struct cw1200_common *priv, u32 addr,
+ void *buf, size_t buf_len)
+{
+ return cw1200_indirect_read(priv, addr, buf, buf_len,
+ ST90TDS_CONFIG_AHB_PRFETCH_BIT,
+ ST90TDS_AHB_DPORT_REG_ID);
+}
+
+static inline int cw1200_apb_read_32(struct cw1200_common *priv,
+ u32 addr, u32 *val)
+{
+ __le32 tmp;
+ int i = cw1200_apb_read(priv, addr, &tmp, sizeof(tmp));
+ *val = le32_to_cpu(tmp);
+ return i;
+}
+
+static inline int cw1200_apb_write_32(struct cw1200_common *priv,
+ u32 addr, u32 val)
+{
+ __le32 tmp = cpu_to_le32(val);
+ return cw1200_apb_write(priv, addr, &tmp, sizeof(val));
+}
+static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
+ u32 addr, u32 *val)
+{
+ __le32 tmp;
+ int i = cw1200_ahb_read(priv, addr, &tmp, sizeof(tmp));
+ *val = le32_to_cpu(tmp);
+ return i;
+}
+
+#endif /* CW1200_HWIO_H_INCLUDED */
--- /dev/null
+/*
+ * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * Based on:
+ * - the islsm (softmac prism54) driver, which is:
+ * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ * - stlc45xx driver
+ * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <net/mac80211.h>
+
+#include "cw1200.h"
+#include "txrx.h"
+#include "hwbus.h"
+#include "fwio.h"
+#include "hwio.h"
+#include "bh.h"
+#include "sta.h"
+#include "scan.h"
+#include "debug.h"
+#include "pm.h"
+
+MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
+MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("cw1200_core");
+
+/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
+static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
+module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO);
+MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
+
+static char *cw1200_sdd_path;
+module_param(cw1200_sdd_path, charp, 0644);
+MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
+static int cw1200_refclk;
+module_param(cw1200_refclk, int, 0644);
+MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
+
+int cw1200_power_mode = wsm_power_mode_quiescent;
+module_param(cw1200_power_mode, int, 0644);
+MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode. 0 == active, 1 == doze, 2 == quiescent (default)");
+
+#define RATETAB_ENT(_rate, _rateid, _flags) \
+ { \
+ .bitrate = (_rate), \
+ .hw_value = (_rateid), \
+ .flags = (_flags), \
+ }
+
+static struct ieee80211_rate cw1200_rates[] = {
+ RATETAB_ENT(10, 0, 0),
+ RATETAB_ENT(20, 1, 0),
+ RATETAB_ENT(55, 2, 0),
+ RATETAB_ENT(110, 3, 0),
+ RATETAB_ENT(60, 6, 0),
+ RATETAB_ENT(90, 7, 0),
+ RATETAB_ENT(120, 8, 0),
+ RATETAB_ENT(180, 9, 0),
+ RATETAB_ENT(240, 10, 0),
+ RATETAB_ENT(360, 11, 0),
+ RATETAB_ENT(480, 12, 0),
+ RATETAB_ENT(540, 13, 0),
+};
+
+static struct ieee80211_rate cw1200_mcs_rates[] = {
+ RATETAB_ENT(65, 14, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
+ RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
+};
+
+#define cw1200_a_rates (cw1200_rates + 4)
+#define cw1200_a_rates_size (ARRAY_SIZE(cw1200_rates) - 4)
+#define cw1200_g_rates (cw1200_rates + 0)
+#define cw1200_g_rates_size (ARRAY_SIZE(cw1200_rates))
+#define cw1200_n_rates (cw1200_mcs_rates)
+#define cw1200_n_rates_size (ARRAY_SIZE(cw1200_mcs_rates))
+
+
+#define CHAN2G(_channel, _freq, _flags) { \
+ .band = IEEE80211_BAND_2GHZ, \
+ .center_freq = (_freq), \
+ .hw_value = (_channel), \
+ .flags = (_flags), \
+ .max_antenna_gain = 0, \
+ .max_power = 30, \
+}
+
+#define CHAN5G(_channel, _flags) { \
+ .band = IEEE80211_BAND_5GHZ, \
+ .center_freq = 5000 + (5 * (_channel)), \
+ .hw_value = (_channel), \
+ .flags = (_flags), \
+ .max_antenna_gain = 0, \
+ .max_power = 30, \
+}
+
+static struct ieee80211_channel cw1200_2ghz_chantable[] = {
+ CHAN2G(1, 2412, 0),
+ CHAN2G(2, 2417, 0),
+ CHAN2G(3, 2422, 0),
+ CHAN2G(4, 2427, 0),
+ CHAN2G(5, 2432, 0),
+ CHAN2G(6, 2437, 0),
+ CHAN2G(7, 2442, 0),
+ CHAN2G(8, 2447, 0),
+ CHAN2G(9, 2452, 0),
+ CHAN2G(10, 2457, 0),
+ CHAN2G(11, 2462, 0),
+ CHAN2G(12, 2467, 0),
+ CHAN2G(13, 2472, 0),
+ CHAN2G(14, 2484, 0),
+};
+
+static struct ieee80211_channel cw1200_5ghz_chantable[] = {
+ CHAN5G(34, 0), CHAN5G(36, 0),
+ CHAN5G(38, 0), CHAN5G(40, 0),
+ CHAN5G(42, 0), CHAN5G(44, 0),
+ CHAN5G(46, 0), CHAN5G(48, 0),
+ CHAN5G(52, 0), CHAN5G(56, 0),
+ CHAN5G(60, 0), CHAN5G(64, 0),
+ CHAN5G(100, 0), CHAN5G(104, 0),
+ CHAN5G(108, 0), CHAN5G(112, 0),
+ CHAN5G(116, 0), CHAN5G(120, 0),
+ CHAN5G(124, 0), CHAN5G(128, 0),
+ CHAN5G(132, 0), CHAN5G(136, 0),
+ CHAN5G(140, 0), CHAN5G(149, 0),
+ CHAN5G(153, 0), CHAN5G(157, 0),
+ CHAN5G(161, 0), CHAN5G(165, 0),
+ CHAN5G(184, 0), CHAN5G(188, 0),
+ CHAN5G(192, 0), CHAN5G(196, 0),
+ CHAN5G(200, 0), CHAN5G(204, 0),
+ CHAN5G(208, 0), CHAN5G(212, 0),
+ CHAN5G(216, 0),
+};
+
+static struct ieee80211_supported_band cw1200_band_2ghz = {
+ .channels = cw1200_2ghz_chantable,
+ .n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
+ .bitrates = cw1200_g_rates,
+ .n_bitrates = cw1200_g_rates_size,
+ .ht_cap = {
+ .cap = IEEE80211_HT_CAP_GRN_FLD |
+ (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
+ IEEE80211_HT_CAP_MAX_AMSDU,
+ .ht_supported = 1,
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
+ .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
+ .mcs = {
+ .rx_mask[0] = 0xFF,
+ .rx_highest = __cpu_to_le16(0x41),
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+ },
+ },
+};
+
+static struct ieee80211_supported_band cw1200_band_5ghz = {
+ .channels = cw1200_5ghz_chantable,
+ .n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
+ .bitrates = cw1200_a_rates,
+ .n_bitrates = cw1200_a_rates_size,
+ .ht_cap = {
+ .cap = IEEE80211_HT_CAP_GRN_FLD |
+ (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
+ IEEE80211_HT_CAP_MAX_AMSDU,
+ .ht_supported = 1,
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
+ .ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
+ .mcs = {
+ .rx_mask[0] = 0xFF,
+ .rx_highest = __cpu_to_le16(0x41),
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+ },
+ },
+};
+
+static const unsigned long cw1200_ttl[] = {
+ 1 * HZ, /* VO */
+ 2 * HZ, /* VI */
+ 5 * HZ, /* BE */
+ 10 * HZ /* BK */
+};
+
+static const struct ieee80211_ops cw1200_ops = {
+ .start = cw1200_start,
+ .stop = cw1200_stop,
+ .add_interface = cw1200_add_interface,
+ .remove_interface = cw1200_remove_interface,
+ .change_interface = cw1200_change_interface,
+ .tx = cw1200_tx,
+ .hw_scan = cw1200_hw_scan,
+ .set_tim = cw1200_set_tim,
+ .sta_notify = cw1200_sta_notify,
+ .sta_add = cw1200_sta_add,
+ .sta_remove = cw1200_sta_remove,
+ .set_key = cw1200_set_key,
+ .set_rts_threshold = cw1200_set_rts_threshold,
+ .config = cw1200_config,
+ .bss_info_changed = cw1200_bss_info_changed,
+ .prepare_multicast = cw1200_prepare_multicast,
+ .configure_filter = cw1200_configure_filter,
+ .conf_tx = cw1200_conf_tx,
+ .get_stats = cw1200_get_stats,
+ .ampdu_action = cw1200_ampdu_action,
+ .flush = cw1200_flush,
+#ifdef CONFIG_PM
+ .suspend = cw1200_wow_suspend,
+ .resume = cw1200_wow_resume,
+#endif
+ /* Intentionally not offloaded: */
+ /*.channel_switch = cw1200_channel_switch, */
+ /*.remain_on_channel = cw1200_remain_on_channel, */
+ /*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel, */
+};
+
+static int cw1200_ba_rx_tids = -1;
+static int cw1200_ba_tx_tids = -1;
+module_param(cw1200_ba_rx_tids, int, 0644);
+module_param(cw1200_ba_tx_tids, int, 0644);
+MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
+MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
+
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support cw1200_wowlan_support = {
+ /* Support only for limited wowlan functionalities */
+ .flags = WIPHY_WOWLAN_ANY | WIPHY_WOWLAN_DISCONNECT,
+};
+#endif
+
+
+static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
+ const bool have_5ghz)
+{
+ int i, band;
+ struct ieee80211_hw *hw;
+ struct cw1200_common *priv;
+
+ hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
+ if (!hw)
+ return NULL;
+
+ priv = hw->priv;
+ priv->hw = hw;
+ priv->hw_type = -1;
+ priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ priv->rates = cw1200_rates; /* TODO: fetch from FW */
+ priv->mcs_rates = cw1200_n_rates;
+ if (cw1200_ba_rx_tids != -1)
+ priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
+ else
+ priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
+ if (cw1200_ba_tx_tids != -1)
+ priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
+ else
+ priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
+
+ ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
+ ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
+ ieee80211_hw_set(hw, AMPDU_AGGREGATION);
+ ieee80211_hw_set(hw, CONNECTION_MONITOR);
+ ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
+ ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
+ ieee80211_hw_set(hw, SIGNAL_DBM);
+ ieee80211_hw_set(hw, SUPPORTS_PS);
+
+ hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_ADHOC) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+ BIT(NL80211_IFTYPE_P2P_CLIENT) |
+ BIT(NL80211_IFTYPE_P2P_GO);
+
+#ifdef CONFIG_PM
+ hw->wiphy->wowlan = &cw1200_wowlan_support;
+#endif
+
+ hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
+
+ hw->queues = 4;
+
+ priv->rts_threshold = -1;
+
+ hw->max_rates = 8;
+ hw->max_rate_tries = 15;
+ hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
+ 8; /* TKIP IV */
+
+ hw->sta_data_size = sizeof(struct cw1200_sta_priv);
+
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
+ if (have_5ghz)
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;
+
+ /* Channel params have to be cleared before registering wiphy again */
+ for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+ struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
+ if (!sband)
+ continue;
+ for (i = 0; i < sband->n_channels; i++) {
+ sband->channels[i].flags = 0;
+ sband->channels[i].max_antenna_gain = 0;
+ sband->channels[i].max_power = 30;
+ }
+ }
+
+ hw->wiphy->max_scan_ssids = 2;
+ hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+
+ if (macaddr)
+ SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
+ else
+ SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
+
+ /* Fix up mac address if necessary */
+ if (hw->wiphy->perm_addr[3] == 0 &&
+ hw->wiphy->perm_addr[4] == 0 &&
+ hw->wiphy->perm_addr[5] == 0) {
+ get_random_bytes(&hw->wiphy->perm_addr[3], 3);
+ }
+
+ mutex_init(&priv->wsm_cmd_mux);
+ mutex_init(&priv->conf_mutex);
+ priv->workqueue = create_singlethread_workqueue("cw1200_wq");
+ sema_init(&priv->scan.lock, 1);
+ INIT_WORK(&priv->scan.work, cw1200_scan_work);
+ INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
+ INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
+ INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
+ cw1200_clear_recent_scan_work);
+ INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
+ INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
+ INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
+ INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
+ INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
+ spin_lock_init(&priv->event_queue_lock);
+ INIT_LIST_HEAD(&priv->event_queue);
+ INIT_WORK(&priv->event_handler, cw1200_event_handler);
+ INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
+ INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
+ spin_lock_init(&priv->bss_loss_lock);
+ spin_lock_init(&priv->ps_state_lock);
+ INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
+ INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
+ INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
+ INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
+ INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
+ INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
+ INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
+ INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
+ INIT_WORK(&priv->set_beacon_wakeup_period_work,
+ cw1200_set_beacon_wakeup_period_work);
+ setup_timer(&priv->mcast_timeout, cw1200_mcast_timeout,
+ (unsigned long)priv);
+
+ if (cw1200_queue_stats_init(&priv->tx_queue_stats,
+ CW1200_LINK_ID_MAX,
+ cw1200_skb_dtor,
+ priv)) {
+ ieee80211_free_hw(hw);
+ return NULL;
+ }
+
+ for (i = 0; i < 4; ++i) {
+ if (cw1200_queue_init(&priv->tx_queue[i],
+ &priv->tx_queue_stats, i, 16,
+ cw1200_ttl[i])) {
+ for (; i > 0; i--)
+ cw1200_queue_deinit(&priv->tx_queue[i - 1]);
+ cw1200_queue_stats_deinit(&priv->tx_queue_stats);
+ ieee80211_free_hw(hw);
+ return NULL;
+ }
+ }
+
+ init_waitqueue_head(&priv->channel_switch_done);
+ init_waitqueue_head(&priv->wsm_cmd_wq);
+ init_waitqueue_head(&priv->wsm_startup_done);
+ init_waitqueue_head(&priv->ps_mode_switch_done);
+ wsm_buf_init(&priv->wsm_cmd_buf);
+ spin_lock_init(&priv->wsm_cmd.lock);
+ priv->wsm_cmd.done = 1;
+ tx_policy_init(priv);
+
+ return hw;
+}
+
+static int cw1200_register_common(struct ieee80211_hw *dev)
+{
+ struct cw1200_common *priv = dev->priv;
+ int err;
+
+#ifdef CONFIG_PM
+ err = cw1200_pm_init(&priv->pm_state, priv);
+ if (err) {
+ pr_err("Cannot init PM. (%d).\n",
+ err);
+ return err;
+ }
+#endif
+
+ err = ieee80211_register_hw(dev);
+ if (err) {
+ pr_err("Cannot register device (%d).\n",
+ err);
+#ifdef CONFIG_PM
+ cw1200_pm_deinit(&priv->pm_state);
+#endif
+ return err;
+ }
+
+ cw1200_debug_init(priv);
+
+ pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
+ return 0;
+}
+
+static void cw1200_free_common(struct ieee80211_hw *dev)
+{
+ ieee80211_free_hw(dev);
+}
+
+static void cw1200_unregister_common(struct ieee80211_hw *dev)
+{
+ struct cw1200_common *priv = dev->priv;
+ int i;
+
+ ieee80211_unregister_hw(dev);
+
+ del_timer_sync(&priv->mcast_timeout);
+ cw1200_unregister_bh(priv);
+
+ cw1200_debug_release(priv);
+
+ mutex_destroy(&priv->conf_mutex);
+
+ wsm_buf_deinit(&priv->wsm_cmd_buf);
+
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+
+ if (priv->sdd) {
+ release_firmware(priv->sdd);
+ priv->sdd = NULL;
+ }
+
+ for (i = 0; i < 4; ++i)
+ cw1200_queue_deinit(&priv->tx_queue[i]);
+
+ cw1200_queue_stats_deinit(&priv->tx_queue_stats);
+#ifdef CONFIG_PM
+ cw1200_pm_deinit(&priv->pm_state);
+#endif
+}
+
+/* Clock is in KHz */
+u32 cw1200_dpll_from_clk(u16 clk_khz)
+{
+ switch (clk_khz) {
+ case 0x32C8: /* 13000 KHz */
+ return 0x1D89D241;
+ case 0x3E80: /* 16000 KHz */
+ return 0x000001E1;
+ case 0x41A0: /* 16800 KHz */
+ return 0x124931C1;
+ case 0x4B00: /* 19200 KHz */
+ return 0x00000191;
+ case 0x5DC0: /* 24000 KHz */
+ return 0x00000141;
+ case 0x6590: /* 26000 KHz */
+ return 0x0EC4F121;
+ case 0x8340: /* 33600 KHz */
+ return 0x092490E1;
+ case 0x9600: /* 38400 KHz */
+ return 0x100010C1;
+ case 0x9C40: /* 40000 KHz */
+ return 0x000000C1;
+ case 0xBB80: /* 48000 KHz */
+ return 0x000000A1;
+ case 0xCB20: /* 52000 KHz */
+ return 0x07627091;
+ default:
+ pr_err("Unknown Refclk freq (0x%04x), using 26000KHz\n",
+ clk_khz);
+ return 0x0EC4F121;
+ }
+}
+
+int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
+ struct hwbus_priv *hwbus,
+ struct device *pdev,
+ struct cw1200_common **core,
+ int ref_clk, const u8 *macaddr,
+ const char *sdd_path, bool have_5ghz)
+{
+ int err = -EINVAL;
+ struct ieee80211_hw *dev;
+ struct cw1200_common *priv;
+ struct wsm_operational_mode mode = {
+ .power_mode = cw1200_power_mode,
+ .disable_more_flag_usage = true,
+ };
+
+ dev = cw1200_init_common(macaddr, have_5ghz);
+ if (!dev)
+ goto err;
+
+ priv = dev->priv;
+ priv->hw_refclk = ref_clk;
+ if (cw1200_refclk)
+ priv->hw_refclk = cw1200_refclk;
+
+ priv->sdd_path = (char *)sdd_path;
+ if (cw1200_sdd_path)
+ priv->sdd_path = cw1200_sdd_path;
+
+ priv->hwbus_ops = hwbus_ops;
+ priv->hwbus_priv = hwbus;
+ priv->pdev = pdev;
+ SET_IEEE80211_DEV(priv->hw, pdev);
+
+ /* Pass struct cw1200_common back up */
+ *core = priv;
+
+ err = cw1200_register_bh(priv);
+ if (err)
+ goto err1;
+
+ err = cw1200_load_firmware(priv);
+ if (err)
+ goto err2;
+
+ if (wait_event_interruptible_timeout(priv->wsm_startup_done,
+ priv->firmware_ready,
+ 3*HZ) <= 0) {
+ /* TODO: Need to find how to reset device
+ in QUEUE mode properly.
+ */
+ pr_err("Timeout waiting on device startup\n");
+ err = -ETIMEDOUT;
+ goto err2;
+ }
+
+ /* Set low-power mode. */
+ wsm_set_operational_mode(priv, &mode);
+
+ /* Enable multi-TX confirmation */
+ wsm_use_multi_tx_conf(priv, true);
+
+ err = cw1200_register_common(dev);
+ if (err)
+ goto err2;
+
+ return err;
+
+err2:
+ cw1200_unregister_bh(priv);
+err1:
+ cw1200_free_common(dev);
+err:
+ *core = NULL;
+ return err;
+}
+EXPORT_SYMBOL_GPL(cw1200_core_probe);
+
+void cw1200_core_release(struct cw1200_common *self)
+{
+ /* Disable device interrupts */
+ self->hwbus_ops->lock(self->hwbus_priv);
+ __cw1200_irq_enable(self, 0);
+ self->hwbus_ops->unlock(self->hwbus_priv);
+
+ /* And then clean up */
+ cw1200_unregister_common(self->hw);
+ cw1200_free_common(self->hw);
+ return;
+}
+EXPORT_SYMBOL_GPL(cw1200_core_release);
--- /dev/null
+/*
+ * Mac80211 power management API for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/if_ether.h>
+#include "cw1200.h"
+#include "pm.h"
+#include "sta.h"
+#include "bh.h"
+#include "hwbus.h"
+
+#define CW1200_BEACON_SKIPPING_MULTIPLIER 3
+
+struct cw1200_udp_port_filter {
+ struct wsm_udp_port_filter_hdr hdr;
+ /* Up to 4 filters are allowed. */
+ struct wsm_udp_port_filter filters[WSM_MAX_FILTER_ELEMENTS];
+} __packed;
+
+struct cw1200_ether_type_filter {
+ struct wsm_ether_type_filter_hdr hdr;
+ /* Up to 4 filters are allowed. */
+ struct wsm_ether_type_filter filters[WSM_MAX_FILTER_ELEMENTS];
+} __packed;
+
+static struct cw1200_udp_port_filter cw1200_udp_port_filter_on = {
+ .hdr.num = 2,
+ .filters = {
+ [0] = {
+ .action = WSM_FILTER_ACTION_FILTER_OUT,
+ .type = WSM_FILTER_PORT_TYPE_DST,
+ .port = __cpu_to_le16(67), /* DHCP Bootps */
+ },
+ [1] = {
+ .action = WSM_FILTER_ACTION_FILTER_OUT,
+ .type = WSM_FILTER_PORT_TYPE_DST,
+ .port = __cpu_to_le16(68), /* DHCP Bootpc */
+ },
+ }
+};
+
+static struct wsm_udp_port_filter_hdr cw1200_udp_port_filter_off = {
+ .num = 0,
+};
+
+#ifndef ETH_P_WAPI
+#define ETH_P_WAPI 0x88B4
+#endif
+
+static struct cw1200_ether_type_filter cw1200_ether_type_filter_on = {
+ .hdr.num = 4,
+ .filters = {
+ [0] = {
+ .action = WSM_FILTER_ACTION_FILTER_IN,
+ .type = __cpu_to_le16(ETH_P_IP),
+ },
+ [1] = {
+ .action = WSM_FILTER_ACTION_FILTER_IN,
+ .type = __cpu_to_le16(ETH_P_PAE),
+ },
+ [2] = {
+ .action = WSM_FILTER_ACTION_FILTER_IN,
+ .type = __cpu_to_le16(ETH_P_WAPI),
+ },
+ [3] = {
+ .action = WSM_FILTER_ACTION_FILTER_IN,
+ .type = __cpu_to_le16(ETH_P_ARP),
+ },
+ },
+};
+
+static struct wsm_ether_type_filter_hdr cw1200_ether_type_filter_off = {
+ .num = 0,
+};
+
+/* private */
+struct cw1200_suspend_state {
+ unsigned long bss_loss_tmo;
+ unsigned long join_tmo;
+ unsigned long direct_probe;
+ unsigned long link_id_gc;
+ bool beacon_skipping;
+ u8 prev_ps_mode;
+};
+
+static void cw1200_pm_stay_awake_tmo(unsigned long arg)
+{
+ /* XXX what's the point of this ? */
+}
+
+int cw1200_pm_init(struct cw1200_pm_state *pm,
+ struct cw1200_common *priv)
+{
+ spin_lock_init(&pm->lock);
+
+ setup_timer(&pm->stay_awake, cw1200_pm_stay_awake_tmo,
+ (unsigned long)pm);
+
+ return 0;
+}
+
+void cw1200_pm_deinit(struct cw1200_pm_state *pm)
+{
+ del_timer_sync(&pm->stay_awake);
+}
+
+void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+ unsigned long tmo)
+{
+ long cur_tmo;
+ spin_lock_bh(&pm->lock);
+ cur_tmo = pm->stay_awake.expires - jiffies;
+ if (!timer_pending(&pm->stay_awake) || cur_tmo < (long)tmo)
+ mod_timer(&pm->stay_awake, jiffies + tmo);
+ spin_unlock_bh(&pm->lock);
+}
+
+static long cw1200_suspend_work(struct delayed_work *work)
+{
+ int ret = cancel_delayed_work(work);
+ long tmo;
+ if (ret > 0) {
+ /* Timer is pending */
+ tmo = work->timer.expires - jiffies;
+ if (tmo < 0)
+ tmo = 0;
+ } else {
+ tmo = -1;
+ }
+ return tmo;
+}
+
+static int cw1200_resume_work(struct cw1200_common *priv,
+ struct delayed_work *work,
+ unsigned long tmo)
+{
+ if ((long)tmo < 0)
+ return 1;
+
+ return queue_delayed_work(priv->workqueue, work, tmo);
+}
+
+int cw1200_can_suspend(struct cw1200_common *priv)
+{
+ if (atomic_read(&priv->bh_rx)) {
+ wiphy_dbg(priv->hw->wiphy, "Suspend interrupted.\n");
+ return 0;
+ }
+ return 1;
+}
+EXPORT_SYMBOL_GPL(cw1200_can_suspend);
+
+int cw1200_wow_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+{
+ struct cw1200_common *priv = hw->priv;
+ struct cw1200_pm_state *pm_state = &priv->pm_state;
+ struct cw1200_suspend_state *state;
+ int ret;
+
+ spin_lock_bh(&pm_state->lock);
+ ret = timer_pending(&pm_state->stay_awake);
+ spin_unlock_bh(&pm_state->lock);
+ if (ret)
+ return -EAGAIN;
+
+ /* Do not suspend when datapath is not idle */
+ if (priv->tx_queue_stats.num_queued)
+ return -EBUSY;
+
+ /* Make sure there is no configuration requests in progress. */
+ if (!mutex_trylock(&priv->conf_mutex))
+ return -EBUSY;
+
+ /* Ensure pending operations are done.
+ * Note also that wow_suspend must return in ~2.5sec, before
+ * watchdog is triggered.
+ */
+ if (priv->channel_switch_in_progress)
+ goto revert1;
+
+ /* Do not suspend when join is pending */
+ if (priv->join_pending)
+ goto revert1;
+
+ /* Do not suspend when scanning */
+ if (down_trylock(&priv->scan.lock))
+ goto revert1;
+
+ /* Lock TX. */
+ wsm_lock_tx_async(priv);
+
+ /* Wait to avoid possible race with bh code.
+ * But do not wait too long...
+ */
+ if (wait_event_timeout(priv->bh_evt_wq,
+ !priv->hw_bufs_used, HZ / 10) <= 0)
+ goto revert2;
+
+ /* Set UDP filter */
+ wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_on.hdr);
+
+ /* Set ethernet frame type filter */
+ wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_on.hdr);
+
+ /* Allocate state */
+ state = kzalloc(sizeof(struct cw1200_suspend_state), GFP_KERNEL);
+ if (!state)
+ goto revert3;
+
+ /* Change to legacy PS while going to suspend */
+ if (!priv->vif->p2p &&
+ priv->join_status == CW1200_JOIN_STATUS_STA &&
+ priv->powersave_mode.mode != WSM_PSM_PS) {
+ state->prev_ps_mode = priv->powersave_mode.mode;
+ priv->powersave_mode.mode = WSM_PSM_PS;
+ cw1200_set_pm(priv, &priv->powersave_mode);
+ if (wait_event_interruptible_timeout(priv->ps_mode_switch_done,
+ !priv->ps_mode_switch_in_progress, 1*HZ) <= 0) {
+ goto revert4;
+ }
+ }
+
+ /* Store delayed work states. */
+ state->bss_loss_tmo =
+ cw1200_suspend_work(&priv->bss_loss_work);
+ state->join_tmo =
+ cw1200_suspend_work(&priv->join_timeout);
+ state->direct_probe =
+ cw1200_suspend_work(&priv->scan.probe_work);
+ state->link_id_gc =
+ cw1200_suspend_work(&priv->link_id_gc_work);
+
+ cancel_delayed_work_sync(&priv->clear_recent_scan_work);
+ atomic_set(&priv->recent_scan, 0);
+
+ /* Enable beacon skipping */
+ if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+ priv->join_dtim_period &&
+ !priv->has_multicast_subscription) {
+ state->beacon_skipping = true;
+ wsm_set_beacon_wakeup_period(priv,
+ priv->join_dtim_period,
+ CW1200_BEACON_SKIPPING_MULTIPLIER * priv->join_dtim_period);
+ }
+
+ /* Stop serving thread */
+ if (cw1200_bh_suspend(priv))
+ goto revert5;
+
+ ret = timer_pending(&priv->mcast_timeout);
+ if (ret)
+ goto revert6;
+
+ /* Store suspend state */
+ pm_state->suspend_state = state;
+
+ /* Enable IRQ wake */
+ ret = priv->hwbus_ops->power_mgmt(priv->hwbus_priv, true);
+ if (ret) {
+ wiphy_err(priv->hw->wiphy,
+ "PM request failed: %d. WoW is disabled.\n", ret);
+ cw1200_wow_resume(hw);
+ return -EBUSY;
+ }
+
+ /* Force resume if event is coming from the device. */
+ if (atomic_read(&priv->bh_rx)) {
+ cw1200_wow_resume(hw);
+ return -EAGAIN;
+ }
+
+ return 0;
+
+revert6:
+ WARN_ON(cw1200_bh_resume(priv));
+revert5:
+ cw1200_resume_work(priv, &priv->bss_loss_work,
+ state->bss_loss_tmo);
+ cw1200_resume_work(priv, &priv->join_timeout,
+ state->join_tmo);
+ cw1200_resume_work(priv, &priv->scan.probe_work,
+ state->direct_probe);
+ cw1200_resume_work(priv, &priv->link_id_gc_work,
+ state->link_id_gc);
+revert4:
+ kfree(state);
+revert3:
+ wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
+ wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
+revert2:
+ wsm_unlock_tx(priv);
+ up(&priv->scan.lock);
+revert1:
+ mutex_unlock(&priv->conf_mutex);
+ return -EBUSY;
+}
+
+int cw1200_wow_resume(struct ieee80211_hw *hw)
+{
+ struct cw1200_common *priv = hw->priv;
+ struct cw1200_pm_state *pm_state = &priv->pm_state;
+ struct cw1200_suspend_state *state;
+
+ state = pm_state->suspend_state;
+ pm_state->suspend_state = NULL;
+
+ /* Disable IRQ wake */
+ priv->hwbus_ops->power_mgmt(priv->hwbus_priv, false);
+
+ /* Scan.lock must be released before BH is resumed other way
+ * in case when BSS_LOST command arrived the processing of the
+ * command will be delayed.
+ */
+ up(&priv->scan.lock);
+
+ /* Resume BH thread */
+ WARN_ON(cw1200_bh_resume(priv));
+
+ /* Restores previous PS mode */
+ if (!priv->vif->p2p && priv->join_status == CW1200_JOIN_STATUS_STA) {
+ priv->powersave_mode.mode = state->prev_ps_mode;
+ cw1200_set_pm(priv, &priv->powersave_mode);
+ }
+
+ if (state->beacon_skipping) {
+ wsm_set_beacon_wakeup_period(priv, priv->beacon_int *
+ priv->join_dtim_period >
+ MAX_BEACON_SKIP_TIME_MS ? 1 :
+ priv->join_dtim_period, 0);
+ state->beacon_skipping = false;
+ }
+
+ /* Resume delayed work */
+ cw1200_resume_work(priv, &priv->bss_loss_work,
+ state->bss_loss_tmo);
+ cw1200_resume_work(priv, &priv->join_timeout,
+ state->join_tmo);
+ cw1200_resume_work(priv, &priv->scan.probe_work,
+ state->direct_probe);
+ cw1200_resume_work(priv, &priv->link_id_gc_work,
+ state->link_id_gc);
+
+ /* Remove UDP port filter */
+ wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
+
+ /* Remove ethernet frame type filter */
+ wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
+
+ /* Unlock datapath */
+ wsm_unlock_tx(priv);
+
+ /* Unlock configuration mutex */
+ mutex_unlock(&priv->conf_mutex);
+
+ /* Free memory */
+ kfree(state);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Mac80211 power management interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef PM_H_INCLUDED
+#define PM_H_INCLUDED
+
+/* ******************************************************************** */
+/* mac80211 API */
+
+/* extern */ struct cw1200_common;
+/* private */ struct cw1200_suspend_state;
+
+struct cw1200_pm_state {
+ struct cw1200_suspend_state *suspend_state;
+ struct timer_list stay_awake;
+ struct platform_device *pm_dev;
+ spinlock_t lock; /* Protect access */
+};
+
+#ifdef CONFIG_PM
+int cw1200_pm_init(struct cw1200_pm_state *pm,
+ struct cw1200_common *priv);
+void cw1200_pm_deinit(struct cw1200_pm_state *pm);
+int cw1200_wow_suspend(struct ieee80211_hw *hw,
+ struct cfg80211_wowlan *wowlan);
+int cw1200_wow_resume(struct ieee80211_hw *hw);
+int cw1200_can_suspend(struct cw1200_common *priv);
+void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+ unsigned long tmo);
+#else
+static inline void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+ unsigned long tmo) {
+}
+#endif
+#endif
--- /dev/null
+/*
+ * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <net/mac80211.h>
+#include <linux/sched.h>
+#include "queue.h"
+#include "cw1200.h"
+#include "debug.h"
+
+/* private */ struct cw1200_queue_item
+{
+ struct list_head head;
+ struct sk_buff *skb;
+ u32 packet_id;
+ unsigned long queue_timestamp;
+ unsigned long xmit_timestamp;
+ struct cw1200_txpriv txpriv;
+ u8 generation;
+};
+
+static inline void __cw1200_queue_lock(struct cw1200_queue *queue)
+{
+ struct cw1200_queue_stats *stats = queue->stats;
+ if (queue->tx_locked_cnt++ == 0) {
+ pr_debug("[TX] Queue %d is locked.\n",
+ queue->queue_id);
+ ieee80211_stop_queue(stats->priv->hw, queue->queue_id);
+ }
+}
+
+static inline void __cw1200_queue_unlock(struct cw1200_queue *queue)
+{
+ struct cw1200_queue_stats *stats = queue->stats;
+ BUG_ON(!queue->tx_locked_cnt);
+ if (--queue->tx_locked_cnt == 0) {
+ pr_debug("[TX] Queue %d is unlocked.\n",
+ queue->queue_id);
+ ieee80211_wake_queue(stats->priv->hw, queue->queue_id);
+ }
+}
+
+static inline void cw1200_queue_parse_id(u32 packet_id, u8 *queue_generation,
+ u8 *queue_id, u8 *item_generation,
+ u8 *item_id)
+{
+ *item_id = (packet_id >> 0) & 0xFF;
+ *item_generation = (packet_id >> 8) & 0xFF;
+ *queue_id = (packet_id >> 16) & 0xFF;
+ *queue_generation = (packet_id >> 24) & 0xFF;
+}
+
+static inline u32 cw1200_queue_mk_packet_id(u8 queue_generation, u8 queue_id,
+ u8 item_generation, u8 item_id)
+{
+ return ((u32)item_id << 0) |
+ ((u32)item_generation << 8) |
+ ((u32)queue_id << 16) |
+ ((u32)queue_generation << 24);
+}
+
+static void cw1200_queue_post_gc(struct cw1200_queue_stats *stats,
+ struct list_head *gc_list)
+{
+ struct cw1200_queue_item *item, *tmp;
+
+ list_for_each_entry_safe(item, tmp, gc_list, head) {
+ list_del(&item->head);
+ stats->skb_dtor(stats->priv, item->skb, &item->txpriv);
+ kfree(item);
+ }
+}
+
+static void cw1200_queue_register_post_gc(struct list_head *gc_list,
+ struct cw1200_queue_item *item)
+{
+ struct cw1200_queue_item *gc_item;
+ gc_item = kmalloc(sizeof(struct cw1200_queue_item),
+ GFP_ATOMIC);
+ BUG_ON(!gc_item);
+ memcpy(gc_item, item, sizeof(struct cw1200_queue_item));
+ list_add_tail(&gc_item->head, gc_list);
+}
+
+static void __cw1200_queue_gc(struct cw1200_queue *queue,
+ struct list_head *head,
+ bool unlock)
+{
+ struct cw1200_queue_stats *stats = queue->stats;
+ struct cw1200_queue_item *item = NULL, *tmp;
+ bool wakeup_stats = false;
+
+ list_for_each_entry_safe(item, tmp, &queue->queue, head) {
+ if (jiffies - item->queue_timestamp < queue->ttl)
+ break;
+ --queue->num_queued;
+ --queue->link_map_cache[item->txpriv.link_id];
+ spin_lock_bh(&stats->lock);
+ --stats->num_queued;
+ if (!--stats->link_map_cache[item->txpriv.link_id])
+ wakeup_stats = true;
+ spin_unlock_bh(&stats->lock);
+ cw1200_debug_tx_ttl(stats->priv);
+ cw1200_queue_register_post_gc(head, item);
+ item->skb = NULL;
+ list_move_tail(&item->head, &queue->free_pool);
+ }
+
+ if (wakeup_stats)
+ wake_up(&stats->wait_link_id_empty);
+
+ if (queue->overfull) {
+ if (queue->num_queued <= (queue->capacity >> 1)) {
+ queue->overfull = false;
+ if (unlock)
+ __cw1200_queue_unlock(queue);
+ } else if (item) {
+ unsigned long tmo = item->queue_timestamp + queue->ttl;
+ mod_timer(&queue->gc, tmo);
+ cw1200_pm_stay_awake(&stats->priv->pm_state,
+ tmo - jiffies);
+ }
+ }
+}
+
+static void cw1200_queue_gc(unsigned long arg)
+{
+ LIST_HEAD(list);
+ struct cw1200_queue *queue =
+ (struct cw1200_queue *)arg;
+
+ spin_lock_bh(&queue->lock);
+ __cw1200_queue_gc(queue, &list, true);
+ spin_unlock_bh(&queue->lock);
+ cw1200_queue_post_gc(queue->stats, &list);
+}
+
+int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
+ size_t map_capacity,
+ cw1200_queue_skb_dtor_t skb_dtor,
+ struct cw1200_common *priv)
+{
+ memset(stats, 0, sizeof(*stats));
+ stats->map_capacity = map_capacity;
+ stats->skb_dtor = skb_dtor;
+ stats->priv = priv;
+ spin_lock_init(&stats->lock);
+ init_waitqueue_head(&stats->wait_link_id_empty);
+
+ stats->link_map_cache = kzalloc(sizeof(int) * map_capacity,
+ GFP_KERNEL);
+ if (!stats->link_map_cache)
+ return -ENOMEM;
+
+ return 0;
+}
+
+int cw1200_queue_init(struct cw1200_queue *queue,
+ struct cw1200_queue_stats *stats,
+ u8 queue_id,
+ size_t capacity,
+ unsigned long ttl)
+{
+ size_t i;
+
+ memset(queue, 0, sizeof(*queue));
+ queue->stats = stats;
+ queue->capacity = capacity;
+ queue->queue_id = queue_id;
+ queue->ttl = ttl;
+ INIT_LIST_HEAD(&queue->queue);
+ INIT_LIST_HEAD(&queue->pending);
+ INIT_LIST_HEAD(&queue->free_pool);
+ spin_lock_init(&queue->lock);
+ setup_timer(&queue->gc, cw1200_queue_gc, (unsigned long)queue);
+
+ queue->pool = kzalloc(sizeof(struct cw1200_queue_item) * capacity,
+ GFP_KERNEL);
+ if (!queue->pool)
+ return -ENOMEM;
+
+ queue->link_map_cache = kzalloc(sizeof(int) * stats->map_capacity,
+ GFP_KERNEL);
+ if (!queue->link_map_cache) {
+ kfree(queue->pool);
+ queue->pool = NULL;
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < capacity; ++i)
+ list_add_tail(&queue->pool[i].head, &queue->free_pool);
+
+ return 0;
+}
+
+int cw1200_queue_clear(struct cw1200_queue *queue)
+{
+ int i;
+ LIST_HEAD(gc_list);
+ struct cw1200_queue_stats *stats = queue->stats;
+ struct cw1200_queue_item *item, *tmp;
+
+ spin_lock_bh(&queue->lock);
+ queue->generation++;
+ list_splice_tail_init(&queue->queue, &queue->pending);
+ list_for_each_entry_safe(item, tmp, &queue->pending, head) {
+ WARN_ON(!item->skb);
+ cw1200_queue_register_post_gc(&gc_list, item);
+ item->skb = NULL;
+ list_move_tail(&item->head, &queue->free_pool);
+ }
+ queue->num_queued = 0;
+ queue->num_pending = 0;
+
+ spin_lock_bh(&stats->lock);
+ for (i = 0; i < stats->map_capacity; ++i) {
+ stats->num_queued -= queue->link_map_cache[i];
+ stats->link_map_cache[i] -= queue->link_map_cache[i];
+ queue->link_map_cache[i] = 0;
+ }
+ spin_unlock_bh(&stats->lock);
+ if (queue->overfull) {
+ queue->overfull = false;
+ __cw1200_queue_unlock(queue);
+ }
+ spin_unlock_bh(&queue->lock);
+ wake_up(&stats->wait_link_id_empty);
+ cw1200_queue_post_gc(stats, &gc_list);
+ return 0;
+}
+
+void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats)
+{
+ kfree(stats->link_map_cache);
+ stats->link_map_cache = NULL;
+}
+
+void cw1200_queue_deinit(struct cw1200_queue *queue)
+{
+ cw1200_queue_clear(queue);
+ del_timer_sync(&queue->gc);
+ INIT_LIST_HEAD(&queue->free_pool);
+ kfree(queue->pool);
+ kfree(queue->link_map_cache);
+ queue->pool = NULL;
+ queue->link_map_cache = NULL;
+ queue->capacity = 0;
+}
+
+size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
+ u32 link_id_map)
+{
+ size_t ret;
+ int i, bit;
+ size_t map_capacity = queue->stats->map_capacity;
+
+ if (!link_id_map)
+ return 0;
+
+ spin_lock_bh(&queue->lock);
+ if (link_id_map == (u32)-1) {
+ ret = queue->num_queued - queue->num_pending;
+ } else {
+ ret = 0;
+ for (i = 0, bit = 1; i < map_capacity; ++i, bit <<= 1) {
+ if (link_id_map & bit)
+ ret += queue->link_map_cache[i];
+ }
+ }
+ spin_unlock_bh(&queue->lock);
+ return ret;
+}
+
+int cw1200_queue_put(struct cw1200_queue *queue,
+ struct sk_buff *skb,
+ struct cw1200_txpriv *txpriv)
+{
+ int ret = 0;
+ LIST_HEAD(gc_list);
+ struct cw1200_queue_stats *stats = queue->stats;
+
+ if (txpriv->link_id >= queue->stats->map_capacity)
+ return -EINVAL;
+
+ spin_lock_bh(&queue->lock);
+ if (!WARN_ON(list_empty(&queue->free_pool))) {
+ struct cw1200_queue_item *item = list_first_entry(
+ &queue->free_pool, struct cw1200_queue_item, head);
+ BUG_ON(item->skb);
+
+ list_move_tail(&item->head, &queue->queue);
+ item->skb = skb;
+ item->txpriv = *txpriv;
+ item->generation = 0;
+ item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
+ queue->queue_id,
+ item->generation,
+ item - queue->pool);
+ item->queue_timestamp = jiffies;
+
+ ++queue->num_queued;
+ ++queue->link_map_cache[txpriv->link_id];
+
+ spin_lock_bh(&stats->lock);
+ ++stats->num_queued;
+ ++stats->link_map_cache[txpriv->link_id];
+ spin_unlock_bh(&stats->lock);
+
+ /* TX may happen in parallel sometimes.
+ * Leave extra queue slots so we don't overflow.
+ */
+ if (queue->overfull == false &&
+ queue->num_queued >=
+ (queue->capacity - (num_present_cpus() - 1))) {
+ queue->overfull = true;
+ __cw1200_queue_lock(queue);
+ mod_timer(&queue->gc, jiffies);
+ }
+ } else {
+ ret = -ENOENT;
+ }
+ spin_unlock_bh(&queue->lock);
+ return ret;
+}
+
+int cw1200_queue_get(struct cw1200_queue *queue,
+ u32 link_id_map,
+ struct wsm_tx **tx,
+ struct ieee80211_tx_info **tx_info,
+ const struct cw1200_txpriv **txpriv)
+{
+ int ret = -ENOENT;
+ struct cw1200_queue_item *item;
+ struct cw1200_queue_stats *stats = queue->stats;
+ bool wakeup_stats = false;
+
+ spin_lock_bh(&queue->lock);
+ list_for_each_entry(item, &queue->queue, head) {
+ if (link_id_map & BIT(item->txpriv.link_id)) {
+ ret = 0;
+ break;
+ }
+ }
+
+ if (!WARN_ON(ret)) {
+ *tx = (struct wsm_tx *)item->skb->data;
+ *tx_info = IEEE80211_SKB_CB(item->skb);
+ *txpriv = &item->txpriv;
+ (*tx)->packet_id = item->packet_id;
+ list_move_tail(&item->head, &queue->pending);
+ ++queue->num_pending;
+ --queue->link_map_cache[item->txpriv.link_id];
+ item->xmit_timestamp = jiffies;
+
+ spin_lock_bh(&stats->lock);
+ --stats->num_queued;
+ if (!--stats->link_map_cache[item->txpriv.link_id])
+ wakeup_stats = true;
+ spin_unlock_bh(&stats->lock);
+ }
+ spin_unlock_bh(&queue->lock);
+ if (wakeup_stats)
+ wake_up(&stats->wait_link_id_empty);
+ return ret;
+}
+
+int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id)
+{
+ int ret = 0;
+ u8 queue_generation, queue_id, item_generation, item_id;
+ struct cw1200_queue_item *item;
+ struct cw1200_queue_stats *stats = queue->stats;
+
+ cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
+ &item_generation, &item_id);
+
+ item = &queue->pool[item_id];
+
+ spin_lock_bh(&queue->lock);
+ BUG_ON(queue_id != queue->queue_id);
+ if (queue_generation != queue->generation) {
+ ret = -ENOENT;
+ } else if (item_id >= (unsigned) queue->capacity) {
+ WARN_ON(1);
+ ret = -EINVAL;
+ } else if (item->generation != item_generation) {
+ WARN_ON(1);
+ ret = -ENOENT;
+ } else {
+ --queue->num_pending;
+ ++queue->link_map_cache[item->txpriv.link_id];
+
+ spin_lock_bh(&stats->lock);
+ ++stats->num_queued;
+ ++stats->link_map_cache[item->txpriv.link_id];
+ spin_unlock_bh(&stats->lock);
+
+ item->generation = ++item_generation;
+ item->packet_id = cw1200_queue_mk_packet_id(queue_generation,
+ queue_id,
+ item_generation,
+ item_id);
+ list_move(&item->head, &queue->queue);
+ }
+ spin_unlock_bh(&queue->lock);
+ return ret;
+}
+
+int cw1200_queue_requeue_all(struct cw1200_queue *queue)
+{
+ struct cw1200_queue_item *item, *tmp;
+ struct cw1200_queue_stats *stats = queue->stats;
+ spin_lock_bh(&queue->lock);
+
+ list_for_each_entry_safe_reverse(item, tmp, &queue->pending, head) {
+ --queue->num_pending;
+ ++queue->link_map_cache[item->txpriv.link_id];
+
+ spin_lock_bh(&stats->lock);
+ ++stats->num_queued;
+ ++stats->link_map_cache[item->txpriv.link_id];
+ spin_unlock_bh(&stats->lock);
+
+ ++item->generation;
+ item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
+ queue->queue_id,
+ item->generation,
+ item - queue->pool);
+ list_move(&item->head, &queue->queue);
+ }
+ spin_unlock_bh(&queue->lock);
+
+ return 0;
+}
+
+int cw1200_queue_remove(struct cw1200_queue *queue, u32 packet_id)
+{
+ int ret = 0;
+ u8 queue_generation, queue_id, item_generation, item_id;
+ struct cw1200_queue_item *item;
+ struct cw1200_queue_stats *stats = queue->stats;
+ struct sk_buff *gc_skb = NULL;
+ struct cw1200_txpriv gc_txpriv;
+
+ cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
+ &item_generation, &item_id);
+
+ item = &queue->pool[item_id];
+
+ spin_lock_bh(&queue->lock);
+ BUG_ON(queue_id != queue->queue_id);
+ if (queue_generation != queue->generation) {
+ ret = -ENOENT;
+ } else if (item_id >= (unsigned) queue->capacity) {
+ WARN_ON(1);
+ ret = -EINVAL;
+ } else if (item->generation != item_generation) {
+ WARN_ON(1);
+ ret = -ENOENT;
+ } else {
+ gc_txpriv = item->txpriv;
+ gc_skb = item->skb;
+ item->skb = NULL;
+ --queue->num_pending;
+ --queue->num_queued;
+ ++queue->num_sent;
+ ++item->generation;
+ /* Do not use list_move_tail here, but list_move:
+ * try to utilize cache row.
+ */
+ list_move(&item->head, &queue->free_pool);
+
+ if (queue->overfull &&
+ (queue->num_queued <= (queue->capacity >> 1))) {
+ queue->overfull = false;
+ __cw1200_queue_unlock(queue);
+ }
+ }
+ spin_unlock_bh(&queue->lock);
+
+ if (gc_skb)
+ stats->skb_dtor(stats->priv, gc_skb, &gc_txpriv);
+
+ return ret;
+}
+
+int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
+ struct sk_buff **skb,
+ const struct cw1200_txpriv **txpriv)
+{
+ int ret = 0;
+ u8 queue_generation, queue_id, item_generation, item_id;
+ struct cw1200_queue_item *item;
+ cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
+ &item_generation, &item_id);
+
+ item = &queue->pool[item_id];
+
+ spin_lock_bh(&queue->lock);
+ BUG_ON(queue_id != queue->queue_id);
+ if (queue_generation != queue->generation) {
+ ret = -ENOENT;
+ } else if (item_id >= (unsigned) queue->capacity) {
+ WARN_ON(1);
+ ret = -EINVAL;
+ } else if (item->generation != item_generation) {
+ WARN_ON(1);
+ ret = -ENOENT;
+ } else {
+ *skb = item->skb;
+ *txpriv = &item->txpriv;
+ }
+ spin_unlock_bh(&queue->lock);
+ return ret;
+}
+
+void cw1200_queue_lock(struct cw1200_queue *queue)
+{
+ spin_lock_bh(&queue->lock);
+ __cw1200_queue_lock(queue);
+ spin_unlock_bh(&queue->lock);
+}
+
+void cw1200_queue_unlock(struct cw1200_queue *queue)
+{
+ spin_lock_bh(&queue->lock);
+ __cw1200_queue_unlock(queue);
+ spin_unlock_bh(&queue->lock);
+}
+
+bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
+ unsigned long *timestamp,
+ u32 pending_frame_id)
+{
+ struct cw1200_queue_item *item;
+ bool ret;
+
+ spin_lock_bh(&queue->lock);
+ ret = !list_empty(&queue->pending);
+ if (ret) {
+ list_for_each_entry(item, &queue->pending, head) {
+ if (item->packet_id != pending_frame_id)
+ if (time_before(item->xmit_timestamp,
+ *timestamp))
+ *timestamp = item->xmit_timestamp;
+ }
+ }
+ spin_unlock_bh(&queue->lock);
+ return ret;
+}
+
+bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
+ u32 link_id_map)
+{
+ bool empty = true;
+
+ spin_lock_bh(&stats->lock);
+ if (link_id_map == (u32)-1) {
+ empty = stats->num_queued == 0;
+ } else {
+ int i;
+ for (i = 0; i < stats->map_capacity; ++i) {
+ if (link_id_map & BIT(i)) {
+ if (stats->link_map_cache[i]) {
+ empty = false;
+ break;
+ }
+ }
+ }
+ }
+ spin_unlock_bh(&stats->lock);
+
+ return empty;
+}
--- /dev/null
+/*
+ * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_QUEUE_H_INCLUDED
+#define CW1200_QUEUE_H_INCLUDED
+
+/* private */ struct cw1200_queue_item;
+
+/* extern */ struct sk_buff;
+/* extern */ struct wsm_tx;
+/* extern */ struct cw1200_common;
+/* extern */ struct ieee80211_tx_queue_stats;
+/* extern */ struct cw1200_txpriv;
+
+/* forward */ struct cw1200_queue_stats;
+
+typedef void (*cw1200_queue_skb_dtor_t)(struct cw1200_common *priv,
+ struct sk_buff *skb,
+ const struct cw1200_txpriv *txpriv);
+
+struct cw1200_queue {
+ struct cw1200_queue_stats *stats;
+ size_t capacity;
+ size_t num_queued;
+ size_t num_pending;
+ size_t num_sent;
+ struct cw1200_queue_item *pool;
+ struct list_head queue;
+ struct list_head free_pool;
+ struct list_head pending;
+ int tx_locked_cnt;
+ int *link_map_cache;
+ bool overfull;
+ spinlock_t lock; /* Protect queue entry */
+ u8 queue_id;
+ u8 generation;
+ struct timer_list gc;
+ unsigned long ttl;
+};
+
+struct cw1200_queue_stats {
+ spinlock_t lock; /* Protect stats entry */
+ int *link_map_cache;
+ int num_queued;
+ size_t map_capacity;
+ wait_queue_head_t wait_link_id_empty;
+ cw1200_queue_skb_dtor_t skb_dtor;
+ struct cw1200_common *priv;
+};
+
+struct cw1200_txpriv {
+ u8 link_id;
+ u8 raw_link_id;
+ u8 tid;
+ u8 rate_id;
+ u8 offset;
+};
+
+int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
+ size_t map_capacity,
+ cw1200_queue_skb_dtor_t skb_dtor,
+ struct cw1200_common *priv);
+int cw1200_queue_init(struct cw1200_queue *queue,
+ struct cw1200_queue_stats *stats,
+ u8 queue_id,
+ size_t capacity,
+ unsigned long ttl);
+int cw1200_queue_clear(struct cw1200_queue *queue);
+void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats);
+void cw1200_queue_deinit(struct cw1200_queue *queue);
+
+size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
+ u32 link_id_map);
+int cw1200_queue_put(struct cw1200_queue *queue,
+ struct sk_buff *skb,
+ struct cw1200_txpriv *txpriv);
+int cw1200_queue_get(struct cw1200_queue *queue,
+ u32 link_id_map,
+ struct wsm_tx **tx,
+ struct ieee80211_tx_info **tx_info,
+ const struct cw1200_txpriv **txpriv);
+int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id);
+int cw1200_queue_requeue_all(struct cw1200_queue *queue);
+int cw1200_queue_remove(struct cw1200_queue *queue,
+ u32 packet_id);
+int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
+ struct sk_buff **skb,
+ const struct cw1200_txpriv **txpriv);
+void cw1200_queue_lock(struct cw1200_queue *queue);
+void cw1200_queue_unlock(struct cw1200_queue *queue);
+bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
+ unsigned long *timestamp,
+ u32 pending_frame_id);
+
+bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
+ u32 link_id_map);
+
+static inline u8 cw1200_queue_get_queue_id(u32 packet_id)
+{
+ return (packet_id >> 16) & 0xFF;
+}
+
+static inline u8 cw1200_queue_get_generation(u32 packet_id)
+{
+ return (packet_id >> 8) & 0xFF;
+}
+
+#endif /* CW1200_QUEUE_H_INCLUDED */
--- /dev/null
+/*
+ * Scan implementation for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/sched.h>
+#include "cw1200.h"
+#include "scan.h"
+#include "sta.h"
+#include "pm.h"
+
+static void cw1200_scan_restart_delayed(struct cw1200_common *priv);
+
+static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)
+{
+ int ret, i;
+ int tmo = 2000;
+
+ switch (priv->join_status) {
+ case CW1200_JOIN_STATUS_PRE_STA:
+ case CW1200_JOIN_STATUS_JOINING:
+ return -EBUSY;
+ default:
+ break;
+ }
+
+ wiphy_dbg(priv->hw->wiphy, "[SCAN] hw req, type %d, %d channels, flags: 0x%x.\n",
+ scan->type, scan->num_channels, scan->flags);
+
+ for (i = 0; i < scan->num_channels; ++i)
+ tmo += scan->ch[i].max_chan_time + 10;
+
+ cancel_delayed_work_sync(&priv->clear_recent_scan_work);
+ atomic_set(&priv->scan.in_progress, 1);
+ atomic_set(&priv->recent_scan, 1);
+ cw1200_pm_stay_awake(&priv->pm_state, msecs_to_jiffies(tmo));
+ queue_delayed_work(priv->workqueue, &priv->scan.timeout,
+ msecs_to_jiffies(tmo));
+ ret = wsm_scan(priv, scan);
+ if (ret) {
+ atomic_set(&priv->scan.in_progress, 0);
+ cancel_delayed_work_sync(&priv->scan.timeout);
+ cw1200_scan_restart_delayed(priv);
+ }
+ return ret;
+}
+
+int cw1200_hw_scan(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_scan_request *hw_req)
+{
+ struct cw1200_common *priv = hw->priv;
+ struct cfg80211_scan_request *req = &hw_req->req;
+ struct wsm_template_frame frame = {
+ .frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
+ };
+ int i, ret;
+
+ if (!priv->vif)
+ return -EINVAL;
+
+ /* Scan when P2P_GO corrupt firmware MiniAP mode */
+ if (priv->join_status == CW1200_JOIN_STATUS_AP)
+ return -EOPNOTSUPP;
+
+ if (req->n_ssids == 1 && !req->ssids[0].ssid_len)
+ req->n_ssids = 0;
+
+ wiphy_dbg(hw->wiphy, "[SCAN] Scan request for %d SSIDs.\n",
+ req->n_ssids);
+
+ if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
+ return -EINVAL;
+
+ frame.skb = ieee80211_probereq_get(hw, priv->vif->addr, NULL, 0,
+ req->ie_len);
+ if (!frame.skb)
+ return -ENOMEM;
+
+ if (req->ie_len)
+ memcpy(skb_put(frame.skb, req->ie_len), req->ie, req->ie_len);
+
+ /* will be unlocked in cw1200_scan_work() */
+ down(&priv->scan.lock);
+ mutex_lock(&priv->conf_mutex);
+
+ ret = wsm_set_template_frame(priv, &frame);
+ if (!ret) {
+ /* Host want to be the probe responder. */
+ ret = wsm_set_probe_responder(priv, true);
+ }
+ if (ret) {
+ mutex_unlock(&priv->conf_mutex);
+ up(&priv->scan.lock);
+ dev_kfree_skb(frame.skb);
+ return ret;
+ }
+
+ wsm_lock_tx(priv);
+
+ BUG_ON(priv->scan.req);
+ priv->scan.req = req;
+ priv->scan.n_ssids = 0;
+ priv->scan.status = 0;
+ priv->scan.begin = &req->channels[0];
+ priv->scan.curr = priv->scan.begin;
+ priv->scan.end = &req->channels[req->n_channels];
+ priv->scan.output_power = priv->output_power;
+
+ for (i = 0; i < req->n_ssids; ++i) {
+ struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids];
+ memcpy(&dst->ssid[0], req->ssids[i].ssid, sizeof(dst->ssid));
+ dst->length = req->ssids[i].ssid_len;
+ ++priv->scan.n_ssids;
+ }
+
+ mutex_unlock(&priv->conf_mutex);
+
+ if (frame.skb)
+ dev_kfree_skb(frame.skb);
+ queue_work(priv->workqueue, &priv->scan.work);
+ return 0;
+}
+
+void cw1200_scan_work(struct work_struct *work)
+{
+ struct cw1200_common *priv = container_of(work, struct cw1200_common,
+ scan.work);
+ struct ieee80211_channel **it;
+ struct wsm_scan scan = {
+ .type = WSM_SCAN_TYPE_FOREGROUND,
+ .flags = WSM_SCAN_FLAG_SPLIT_METHOD,
+ };
+ bool first_run = (priv->scan.begin == priv->scan.curr &&
+ priv->scan.begin != priv->scan.end);
+ int i;
+
+ if (first_run) {
+ /* Firmware gets crazy if scan request is sent
+ * when STA is joined but not yet associated.
+ * Force unjoin in this case.
+ */
+ if (cancel_delayed_work_sync(&priv->join_timeout) > 0)
+ cw1200_join_timeout(&priv->join_timeout.work);
+ }
+
+ mutex_lock(&priv->conf_mutex);
+
+ if (first_run) {
+ if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+ !(priv->powersave_mode.mode & WSM_PSM_PS)) {
+ struct wsm_set_pm pm = priv->powersave_mode;
+ pm.mode = WSM_PSM_PS;
+ cw1200_set_pm(priv, &pm);
+ } else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
+ /* FW bug: driver has to restart p2p-dev mode
+ * after scan
+ */
+ cw1200_disable_listening(priv);
+ }
+ }
+
+ if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {
+ if (priv->scan.output_power != priv->output_power)
+ wsm_set_output_power(priv, priv->output_power * 10);
+ if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+ !(priv->powersave_mode.mode & WSM_PSM_PS))
+ cw1200_set_pm(priv, &priv->powersave_mode);
+
+ if (priv->scan.status < 0)
+ wiphy_warn(priv->hw->wiphy,
+ "[SCAN] Scan failed (%d).\n",
+ priv->scan.status);
+ else if (priv->scan.req)
+ wiphy_dbg(priv->hw->wiphy,
+ "[SCAN] Scan completed.\n");
+ else
+ wiphy_dbg(priv->hw->wiphy,
+ "[SCAN] Scan canceled.\n");
+
+ priv->scan.req = NULL;
+ cw1200_scan_restart_delayed(priv);
+ wsm_unlock_tx(priv);
+ mutex_unlock(&priv->conf_mutex);
+ ieee80211_scan_completed(priv->hw, priv->scan.status ? 1 : 0);
+ up(&priv->scan.lock);
+ return;
+ } else {
+ struct ieee80211_channel *first = *priv->scan.curr;
+ for (it = priv->scan.curr + 1, i = 1;
+ it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;
+ ++it, ++i) {
+ if ((*it)->band != first->band)
+ break;
+ if (((*it)->flags ^ first->flags) &
+ IEEE80211_CHAN_NO_IR)
+ break;
+ if (!(first->flags & IEEE80211_CHAN_NO_IR) &&
+ (*it)->max_power != first->max_power)
+ break;
+ }
+ scan.band = first->band;
+
+ if (priv->scan.req->no_cck)
+ scan.max_tx_rate = WSM_TRANSMIT_RATE_6;
+ else
+ scan.max_tx_rate = WSM_TRANSMIT_RATE_1;
+ scan.num_probes =
+ (first->flags & IEEE80211_CHAN_NO_IR) ? 0 : 2;
+ scan.num_ssids = priv->scan.n_ssids;
+ scan.ssids = &priv->scan.ssids[0];
+ scan.num_channels = it - priv->scan.curr;
+ /* TODO: Is it optimal? */
+ scan.probe_delay = 100;
+ /* It is not stated in WSM specification, however
+ * FW team says that driver may not use FG scan
+ * when joined.
+ */
+ if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+ scan.type = WSM_SCAN_TYPE_BACKGROUND;
+ scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
+ }
+ scan.ch = kzalloc(
+ sizeof(struct wsm_scan_ch) * (it - priv->scan.curr),
+ GFP_KERNEL);
+ if (!scan.ch) {
+ priv->scan.status = -ENOMEM;
+ goto fail;
+ }
+ for (i = 0; i < scan.num_channels; ++i) {
+ scan.ch[i].number = priv->scan.curr[i]->hw_value;
+ if (priv->scan.curr[i]->flags & IEEE80211_CHAN_NO_IR) {
+ scan.ch[i].min_chan_time = 50;
+ scan.ch[i].max_chan_time = 100;
+ } else {
+ scan.ch[i].min_chan_time = 10;
+ scan.ch[i].max_chan_time = 25;
+ }
+ }
+ if (!(first->flags & IEEE80211_CHAN_NO_IR) &&
+ priv->scan.output_power != first->max_power) {
+ priv->scan.output_power = first->max_power;
+ wsm_set_output_power(priv,
+ priv->scan.output_power * 10);
+ }
+ priv->scan.status = cw1200_scan_start(priv, &scan);
+ kfree(scan.ch);
+ if (priv->scan.status)
+ goto fail;
+ priv->scan.curr = it;
+ }
+ mutex_unlock(&priv->conf_mutex);
+ return;
+
+fail:
+ priv->scan.curr = priv->scan.end;
+ mutex_unlock(&priv->conf_mutex);
+ queue_work(priv->workqueue, &priv->scan.work);
+ return;
+}
+
+static void cw1200_scan_restart_delayed(struct cw1200_common *priv)
+{
+ /* FW bug: driver has to restart p2p-dev mode after scan. */
+ if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
+ cw1200_enable_listening(priv);
+ cw1200_update_filtering(priv);
+ }
+
+ if (priv->delayed_unjoin) {
+ priv->delayed_unjoin = false;
+ if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+ } else if (priv->delayed_link_loss) {
+ wiphy_dbg(priv->hw->wiphy, "[CQM] Requeue BSS loss.\n");
+ priv->delayed_link_loss = 0;
+ cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
+ }
+}
+
+static void cw1200_scan_complete(struct cw1200_common *priv)
+{
+ queue_delayed_work(priv->workqueue, &priv->clear_recent_scan_work, HZ);
+ if (priv->scan.direct_probe) {
+ wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe complete.\n");
+ cw1200_scan_restart_delayed(priv);
+ priv->scan.direct_probe = 0;
+ up(&priv->scan.lock);
+ wsm_unlock_tx(priv);
+ } else {
+ cw1200_scan_work(&priv->scan.work);
+ }
+}
+
+void cw1200_scan_failed_cb(struct cw1200_common *priv)
+{
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+ /* STA is stopped. */
+ return;
+
+ if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
+ priv->scan.status = -EIO;
+ queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
+ }
+}
+
+
+void cw1200_scan_complete_cb(struct cw1200_common *priv,
+ struct wsm_scan_complete *arg)
+{
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+ /* STA is stopped. */
+ return;
+
+ if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
+ priv->scan.status = 1;
+ queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
+ }
+}
+
+void cw1200_clear_recent_scan_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common,
+ clear_recent_scan_work.work);
+ atomic_xchg(&priv->recent_scan, 0);
+}
+
+void cw1200_scan_timeout(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, scan.timeout.work);
+ if (atomic_xchg(&priv->scan.in_progress, 0)) {
+ if (priv->scan.status > 0) {
+ priv->scan.status = 0;
+ } else if (!priv->scan.status) {
+ wiphy_warn(priv->hw->wiphy,
+ "Timeout waiting for scan complete notification.\n");
+ priv->scan.status = -ETIMEDOUT;
+ priv->scan.curr = priv->scan.end;
+ wsm_stop_scan(priv);
+ }
+ cw1200_scan_complete(priv);
+ }
+}
+
+void cw1200_probe_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, scan.probe_work.work);
+ u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
+ struct cw1200_queue *queue = &priv->tx_queue[queue_id];
+ const struct cw1200_txpriv *txpriv;
+ struct wsm_tx *wsm;
+ struct wsm_template_frame frame = {
+ .frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
+ };
+ struct wsm_ssid ssids[1] = {{
+ .length = 0,
+ } };
+ struct wsm_scan_ch ch[1] = {{
+ .min_chan_time = 0,
+ .max_chan_time = 10,
+ } };
+ struct wsm_scan scan = {
+ .type = WSM_SCAN_TYPE_FOREGROUND,
+ .num_probes = 1,
+ .probe_delay = 0,
+ .num_channels = 1,
+ .ssids = ssids,
+ .ch = ch,
+ };
+ u8 *ies;
+ size_t ies_len;
+ int ret;
+
+ wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe work.\n");
+
+ mutex_lock(&priv->conf_mutex);
+ if (down_trylock(&priv->scan.lock)) {
+ /* Scan is already in progress. Requeue self. */
+ schedule();
+ queue_delayed_work(priv->workqueue, &priv->scan.probe_work,
+ msecs_to_jiffies(100));
+ mutex_unlock(&priv->conf_mutex);
+ return;
+ }
+
+ /* Make sure we still have a pending probe req */
+ if (cw1200_queue_get_skb(queue, priv->pending_frame_id,
+ &frame.skb, &txpriv)) {
+ up(&priv->scan.lock);
+ mutex_unlock(&priv->conf_mutex);
+ wsm_unlock_tx(priv);
+ return;
+ }
+ wsm = (struct wsm_tx *)frame.skb->data;
+ scan.max_tx_rate = wsm->max_tx_rate;
+ scan.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+ WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+ if (priv->join_status == CW1200_JOIN_STATUS_STA ||
+ priv->join_status == CW1200_JOIN_STATUS_IBSS) {
+ scan.type = WSM_SCAN_TYPE_BACKGROUND;
+ scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
+ }
+ ch[0].number = priv->channel->hw_value;
+
+ skb_pull(frame.skb, txpriv->offset);
+
+ ies = &frame.skb->data[sizeof(struct ieee80211_hdr_3addr)];
+ ies_len = frame.skb->len - sizeof(struct ieee80211_hdr_3addr);
+
+ if (ies_len) {
+ u8 *ssidie =
+ (u8 *)cfg80211_find_ie(WLAN_EID_SSID, ies, ies_len);
+ if (ssidie && ssidie[1] && ssidie[1] <= sizeof(ssids[0].ssid)) {
+ u8 *nextie = &ssidie[2 + ssidie[1]];
+ /* Remove SSID from the IE list. It has to be provided
+ * as a separate argument in cw1200_scan_start call
+ */
+
+ /* Store SSID localy */
+ ssids[0].length = ssidie[1];
+ memcpy(ssids[0].ssid, &ssidie[2], ssids[0].length);
+ scan.num_ssids = 1;
+
+ /* Remove SSID from IE list */
+ ssidie[1] = 0;
+ memmove(&ssidie[2], nextie, &ies[ies_len] - nextie);
+ skb_trim(frame.skb, frame.skb->len - ssids[0].length);
+ }
+ }
+
+ /* FW bug: driver has to restart p2p-dev mode after scan */
+ if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+ cw1200_disable_listening(priv);
+ ret = wsm_set_template_frame(priv, &frame);
+ priv->scan.direct_probe = 1;
+ if (!ret) {
+ wsm_flush_tx(priv);
+ ret = cw1200_scan_start(priv, &scan);
+ }
+ mutex_unlock(&priv->conf_mutex);
+
+ skb_push(frame.skb, txpriv->offset);
+ if (!ret)
+ IEEE80211_SKB_CB(frame.skb)->flags |= IEEE80211_TX_STAT_ACK;
+ BUG_ON(cw1200_queue_remove(queue, priv->pending_frame_id));
+
+ if (ret) {
+ priv->scan.direct_probe = 0;
+ up(&priv->scan.lock);
+ wsm_unlock_tx(priv);
+ }
+
+ return;
+}
--- /dev/null
+/*
+ * Scan interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef SCAN_H_INCLUDED
+#define SCAN_H_INCLUDED
+
+#include <linux/semaphore.h>
+#include "wsm.h"
+
+/* external */ struct sk_buff;
+/* external */ struct cfg80211_scan_request;
+/* external */ struct ieee80211_channel;
+/* external */ struct ieee80211_hw;
+/* external */ struct work_struct;
+
+struct cw1200_scan {
+ struct semaphore lock;
+ struct work_struct work;
+ struct delayed_work timeout;
+ struct cfg80211_scan_request *req;
+ struct ieee80211_channel **begin;
+ struct ieee80211_channel **curr;
+ struct ieee80211_channel **end;
+ struct wsm_ssid ssids[WSM_SCAN_MAX_NUM_OF_SSIDS];
+ int output_power;
+ int n_ssids;
+ int status;
+ atomic_t in_progress;
+ /* Direct probe requests workaround */
+ struct delayed_work probe_work;
+ int direct_probe;
+};
+
+int cw1200_hw_scan(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_scan_request *hw_req);
+void cw1200_scan_work(struct work_struct *work);
+void cw1200_scan_timeout(struct work_struct *work);
+void cw1200_clear_recent_scan_work(struct work_struct *work);
+void cw1200_scan_complete_cb(struct cw1200_common *priv,
+ struct wsm_scan_complete *arg);
+void cw1200_scan_failed_cb(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* Raw probe requests TX workaround */
+void cw1200_probe_work(struct work_struct *work);
+
+#endif
--- /dev/null
+/*
+ * Mac80211 STA API for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+
+#include "cw1200.h"
+#include "sta.h"
+#include "fwio.h"
+#include "bh.h"
+#include "debug.h"
+
+#ifndef ERP_INFO_BYTE_OFFSET
+#define ERP_INFO_BYTE_OFFSET 2
+#endif
+
+static void cw1200_do_join(struct cw1200_common *priv);
+static void cw1200_do_unjoin(struct cw1200_common *priv);
+
+static int cw1200_upload_beacon(struct cw1200_common *priv);
+static int cw1200_upload_pspoll(struct cw1200_common *priv);
+static int cw1200_upload_null(struct cw1200_common *priv);
+static int cw1200_upload_qosnull(struct cw1200_common *priv);
+static int cw1200_start_ap(struct cw1200_common *priv);
+static int cw1200_update_beaconing(struct cw1200_common *priv);
+static int cw1200_enable_beaconing(struct cw1200_common *priv,
+ bool enable);
+static void __cw1200_sta_notify(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ enum sta_notify_cmd notify_cmd,
+ int link_id);
+static int __cw1200_flush(struct cw1200_common *priv, bool drop);
+
+static inline void __cw1200_free_event_queue(struct list_head *list)
+{
+ struct cw1200_wsm_event *event, *tmp;
+ list_for_each_entry_safe(event, tmp, list, link) {
+ list_del(&event->link);
+ kfree(event);
+ }
+}
+
+/* ******************************************************************** */
+/* STA API */
+
+int cw1200_start(struct ieee80211_hw *dev)
+{
+ struct cw1200_common *priv = dev->priv;
+ int ret = 0;
+
+ cw1200_pm_stay_awake(&priv->pm_state, HZ);
+
+ mutex_lock(&priv->conf_mutex);
+
+ /* default EDCA */
+ WSM_EDCA_SET(&priv->edca, 0, 0x0002, 0x0003, 0x0007, 47, 0xc8, false);
+ WSM_EDCA_SET(&priv->edca, 1, 0x0002, 0x0007, 0x000f, 94, 0xc8, false);
+ WSM_EDCA_SET(&priv->edca, 2, 0x0003, 0x000f, 0x03ff, 0, 0xc8, false);
+ WSM_EDCA_SET(&priv->edca, 3, 0x0007, 0x000f, 0x03ff, 0, 0xc8, false);
+ ret = wsm_set_edca_params(priv, &priv->edca);
+ if (ret)
+ goto out;
+
+ ret = cw1200_set_uapsd_param(priv, &priv->edca);
+ if (ret)
+ goto out;
+
+ priv->setbssparams_done = false;
+
+ memcpy(priv->mac_addr, dev->wiphy->perm_addr, ETH_ALEN);
+ priv->mode = NL80211_IFTYPE_MONITOR;
+ priv->wep_default_key_id = -1;
+
+ priv->cqm_beacon_loss_count = 10;
+
+ ret = cw1200_setup_mac(priv);
+ if (ret)
+ goto out;
+
+out:
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
+}
+
+void cw1200_stop(struct ieee80211_hw *dev)
+{
+ struct cw1200_common *priv = dev->priv;
+ LIST_HEAD(list);
+ int i;
+
+ wsm_lock_tx(priv);
+
+ while (down_trylock(&priv->scan.lock)) {
+ /* Scan is in progress. Force it to stop. */
+ priv->scan.req = NULL;
+ schedule();
+ }
+ up(&priv->scan.lock);
+
+ cancel_delayed_work_sync(&priv->scan.probe_work);
+ cancel_delayed_work_sync(&priv->scan.timeout);
+ cancel_delayed_work_sync(&priv->clear_recent_scan_work);
+ cancel_delayed_work_sync(&priv->join_timeout);
+ cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+ cancel_work_sync(&priv->unjoin_work);
+ cancel_delayed_work_sync(&priv->link_id_gc_work);
+ flush_workqueue(priv->workqueue);
+ del_timer_sync(&priv->mcast_timeout);
+ mutex_lock(&priv->conf_mutex);
+ priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ priv->listening = false;
+
+ spin_lock(&priv->event_queue_lock);
+ list_splice_init(&priv->event_queue, &list);
+ spin_unlock(&priv->event_queue_lock);
+ __cw1200_free_event_queue(&list);
+
+
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ priv->join_pending = false;
+
+ for (i = 0; i < 4; i++)
+ cw1200_queue_clear(&priv->tx_queue[i]);
+ mutex_unlock(&priv->conf_mutex);
+ tx_policy_clean(priv);
+
+ /* HACK! */
+ if (atomic_xchg(&priv->tx_lock, 1) != 1)
+ pr_debug("[STA] TX is force-unlocked due to stop request.\n");
+
+ wsm_unlock_tx(priv);
+ atomic_xchg(&priv->tx_lock, 0); /* for recovery to work */
+}
+
+static int cw1200_bssloss_mitigation = 1;
+module_param(cw1200_bssloss_mitigation, int, 0644);
+MODULE_PARM_DESC(cw1200_bssloss_mitigation, "BSS Loss mitigation. 0 == disabled, 1 == enabled (default)");
+
+
+void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
+ int init, int good, int bad)
+{
+ int tx = 0;
+
+ priv->delayed_link_loss = 0;
+ cancel_work_sync(&priv->bss_params_work);
+
+ pr_debug("[STA] CQM BSSLOSS_SM: state: %d init %d good %d bad: %d txlock: %d uj: %d\n",
+ priv->bss_loss_state,
+ init, good, bad,
+ atomic_read(&priv->tx_lock),
+ priv->delayed_unjoin);
+
+ /* If we have a pending unjoin */
+ if (priv->delayed_unjoin)
+ return;
+
+ if (init) {
+ queue_delayed_work(priv->workqueue,
+ &priv->bss_loss_work,
+ HZ);
+ priv->bss_loss_state = 0;
+
+ /* Skip the confimration procedure in P2P case */
+ if (!priv->vif->p2p && !atomic_read(&priv->tx_lock))
+ tx = 1;
+ } else if (good) {
+ cancel_delayed_work_sync(&priv->bss_loss_work);
+ priv->bss_loss_state = 0;
+ queue_work(priv->workqueue, &priv->bss_params_work);
+ } else if (bad) {
+ /* XXX Should we just keep going until we time out? */
+ if (priv->bss_loss_state < 3)
+ tx = 1;
+ } else {
+ cancel_delayed_work_sync(&priv->bss_loss_work);
+ priv->bss_loss_state = 0;
+ }
+
+ /* Bypass mitigation if it's disabled */
+ if (!cw1200_bssloss_mitigation)
+ tx = 0;
+
+ /* Spit out a NULL packet to our AP if necessary */
+ if (tx) {
+ struct sk_buff *skb;
+
+ priv->bss_loss_state++;
+
+ skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
+ WARN_ON(!skb);
+ if (skb)
+ cw1200_tx(priv->hw, NULL, skb);
+ }
+}
+
+int cw1200_add_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif)
+{
+ int ret;
+ struct cw1200_common *priv = dev->priv;
+ /* __le32 auto_calibration_mode = __cpu_to_le32(1); */
+
+ vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
+ IEEE80211_VIF_SUPPORTS_UAPSD |
+ IEEE80211_VIF_SUPPORTS_CQM_RSSI;
+
+ mutex_lock(&priv->conf_mutex);
+
+ if (priv->mode != NL80211_IFTYPE_MONITOR) {
+ mutex_unlock(&priv->conf_mutex);
+ return -EOPNOTSUPP;
+ }
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_AP:
+ priv->mode = vif->type;
+ break;
+ default:
+ mutex_unlock(&priv->conf_mutex);
+ return -EOPNOTSUPP;
+ }
+
+ priv->vif = vif;
+ memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
+ ret = cw1200_setup_mac(priv);
+ /* Enable auto-calibration */
+ /* Exception in subsequent channel switch; disabled.
+ * wsm_write_mib(priv, WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE,
+ * &auto_calibration_mode, sizeof(auto_calibration_mode));
+ */
+
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
+}
+
+void cw1200_remove_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif)
+{
+ struct cw1200_common *priv = dev->priv;
+ struct wsm_reset reset = {
+ .reset_statistics = true,
+ };
+ int i;
+
+ mutex_lock(&priv->conf_mutex);
+ switch (priv->join_status) {
+ case CW1200_JOIN_STATUS_JOINING:
+ case CW1200_JOIN_STATUS_PRE_STA:
+ case CW1200_JOIN_STATUS_STA:
+ case CW1200_JOIN_STATUS_IBSS:
+ wsm_lock_tx(priv);
+ if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+ break;
+ case CW1200_JOIN_STATUS_AP:
+ for (i = 0; priv->link_id_map; ++i) {
+ if (priv->link_id_map & BIT(i)) {
+ reset.link_id = i;
+ wsm_reset(priv, &reset);
+ priv->link_id_map &= ~BIT(i);
+ }
+ }
+ memset(priv->link_id_db, 0, sizeof(priv->link_id_db));
+ priv->sta_asleep_mask = 0;
+ priv->enable_beacon = false;
+ priv->tx_multicast = false;
+ priv->aid0_bit_set = false;
+ priv->buffered_multicasts = false;
+ priv->pspoll_mask = 0;
+ reset.link_id = 0;
+ wsm_reset(priv, &reset);
+ break;
+ case CW1200_JOIN_STATUS_MONITOR:
+ cw1200_update_listening(priv, false);
+ break;
+ default:
+ break;
+ }
+ priv->vif = NULL;
+ priv->mode = NL80211_IFTYPE_MONITOR;
+ eth_zero_addr(priv->mac_addr);
+ memset(&priv->p2p_ps_modeinfo, 0, sizeof(priv->p2p_ps_modeinfo));
+ cw1200_free_keys(priv);
+ cw1200_setup_mac(priv);
+ priv->listening = false;
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ if (!__cw1200_flush(priv, true))
+ wsm_unlock_tx(priv);
+
+ mutex_unlock(&priv->conf_mutex);
+}
+
+int cw1200_change_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ enum nl80211_iftype new_type,
+ bool p2p)
+{
+ int ret = 0;
+ pr_debug("change_interface new: %d (%d), old: %d (%d)\n", new_type,
+ p2p, vif->type, vif->p2p);
+
+ if (new_type != vif->type || vif->p2p != p2p) {
+ cw1200_remove_interface(dev, vif);
+ vif->type = new_type;
+ vif->p2p = p2p;
+ ret = cw1200_add_interface(dev, vif);
+ }
+
+ return ret;
+}
+
+int cw1200_config(struct ieee80211_hw *dev, u32 changed)
+{
+ int ret = 0;
+ struct cw1200_common *priv = dev->priv;
+ struct ieee80211_conf *conf = &dev->conf;
+
+ pr_debug("CONFIG CHANGED: %08x\n", changed);
+
+ down(&priv->scan.lock);
+ mutex_lock(&priv->conf_mutex);
+ /* TODO: IEEE80211_CONF_CHANGE_QOS */
+ /* TODO: IEEE80211_CONF_CHANGE_LISTEN_INTERVAL */
+
+ if (changed & IEEE80211_CONF_CHANGE_POWER) {
+ priv->output_power = conf->power_level;
+ pr_debug("[STA] TX power: %d\n", priv->output_power);
+ wsm_set_output_power(priv, priv->output_power * 10);
+ }
+
+ if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) &&
+ (priv->channel != conf->chandef.chan)) {
+ struct ieee80211_channel *ch = conf->chandef.chan;
+ struct wsm_switch_channel channel = {
+ .channel_number = ch->hw_value,
+ };
+ pr_debug("[STA] Freq %d (wsm ch: %d).\n",
+ ch->center_freq, ch->hw_value);
+
+ /* __cw1200_flush() implicitly locks tx, if successful */
+ if (!__cw1200_flush(priv, false)) {
+ if (!wsm_switch_channel(priv, &channel)) {
+ ret = wait_event_timeout(priv->channel_switch_done,
+ !priv->channel_switch_in_progress,
+ 3 * HZ);
+ if (ret) {
+ /* Already unlocks if successful */
+ priv->channel = ch;
+ ret = 0;
+ } else {
+ ret = -ETIMEDOUT;
+ }
+ } else {
+ /* Unlock if switch channel fails */
+ wsm_unlock_tx(priv);
+ }
+ }
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_PS) {
+ if (!(conf->flags & IEEE80211_CONF_PS))
+ priv->powersave_mode.mode = WSM_PSM_ACTIVE;
+ else if (conf->dynamic_ps_timeout <= 0)
+ priv->powersave_mode.mode = WSM_PSM_PS;
+ else
+ priv->powersave_mode.mode = WSM_PSM_FAST_PS;
+
+ /* Firmware requires that value for this 1-byte field must
+ * be specified in units of 500us. Values above the 128ms
+ * threshold are not supported.
+ */
+ if (conf->dynamic_ps_timeout >= 0x80)
+ priv->powersave_mode.fast_psm_idle_period = 0xFF;
+ else
+ priv->powersave_mode.fast_psm_idle_period =
+ conf->dynamic_ps_timeout << 1;
+
+ if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+ priv->bss_params.aid)
+ cw1200_set_pm(priv, &priv->powersave_mode);
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+ /* TBD: It looks like it's transparent
+ * there's a monitor interface present -- use this
+ * to determine for example whether to calculate
+ * timestamps for packets or not, do not use instead
+ * of filter flags!
+ */
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+ struct wsm_operational_mode mode = {
+ .power_mode = cw1200_power_mode,
+ .disable_more_flag_usage = true,
+ };
+
+ wsm_lock_tx(priv);
+ /* Disable p2p-dev mode forced by TX request */
+ if ((priv->join_status == CW1200_JOIN_STATUS_MONITOR) &&
+ (conf->flags & IEEE80211_CONF_IDLE) &&
+ !priv->listening) {
+ cw1200_disable_listening(priv);
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ }
+ wsm_set_operational_mode(priv, &mode);
+ wsm_unlock_tx(priv);
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+ pr_debug("[STA] Retry limits: %d (long), %d (short).\n",
+ conf->long_frame_max_tx_count,
+ conf->short_frame_max_tx_count);
+ spin_lock_bh(&priv->tx_policy_cache.lock);
+ priv->long_frame_max_tx_count = conf->long_frame_max_tx_count;
+ priv->short_frame_max_tx_count =
+ (conf->short_frame_max_tx_count < 0x0F) ?
+ conf->short_frame_max_tx_count : 0x0F;
+ priv->hw->max_rate_tries = priv->short_frame_max_tx_count;
+ spin_unlock_bh(&priv->tx_policy_cache.lock);
+ }
+ mutex_unlock(&priv->conf_mutex);
+ up(&priv->scan.lock);
+ return ret;
+}
+
+void cw1200_update_filtering(struct cw1200_common *priv)
+{
+ int ret;
+ bool bssid_filtering = !priv->rx_filter.bssid;
+ bool is_p2p = priv->vif && priv->vif->p2p;
+ bool is_sta = priv->vif && NL80211_IFTYPE_STATION == priv->vif->type;
+
+ static struct wsm_beacon_filter_control bf_ctrl;
+ static struct wsm_mib_beacon_filter_table bf_tbl = {
+ .entry[0].ie_id = WLAN_EID_VENDOR_SPECIFIC,
+ .entry[0].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+ WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+ WSM_BEACON_FILTER_IE_HAS_APPEARED,
+ .entry[0].oui[0] = 0x50,
+ .entry[0].oui[1] = 0x6F,
+ .entry[0].oui[2] = 0x9A,
+ .entry[1].ie_id = WLAN_EID_HT_OPERATION,
+ .entry[1].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+ WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+ WSM_BEACON_FILTER_IE_HAS_APPEARED,
+ .entry[2].ie_id = WLAN_EID_ERP_INFO,
+ .entry[2].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+ WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+ WSM_BEACON_FILTER_IE_HAS_APPEARED,
+ };
+
+ if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE)
+ return;
+ else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+ bssid_filtering = false;
+
+ if (priv->disable_beacon_filter) {
+ bf_ctrl.enabled = 0;
+ bf_ctrl.bcn_count = 1;
+ bf_tbl.num = __cpu_to_le32(0);
+ } else if (is_p2p || !is_sta) {
+ bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE |
+ WSM_BEACON_FILTER_AUTO_ERP;
+ bf_ctrl.bcn_count = 0;
+ bf_tbl.num = __cpu_to_le32(2);
+ } else {
+ bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE;
+ bf_ctrl.bcn_count = 0;
+ bf_tbl.num = __cpu_to_le32(3);
+ }
+
+ /* When acting as p2p client being connected to p2p GO, in order to
+ * receive frames from a different p2p device, turn off bssid filter.
+ *
+ * WARNING: FW dependency!
+ * This can only be used with FW WSM371 and its successors.
+ * In that FW version even with bssid filter turned off,
+ * device will block most of the unwanted frames.
+ */
+ if (is_p2p)
+ bssid_filtering = false;
+
+ ret = wsm_set_rx_filter(priv, &priv->rx_filter);
+ if (!ret)
+ ret = wsm_set_beacon_filter_table(priv, &bf_tbl);
+ if (!ret)
+ ret = wsm_beacon_filter_control(priv, &bf_ctrl);
+ if (!ret)
+ ret = wsm_set_bssid_filtering(priv, bssid_filtering);
+ if (!ret)
+ ret = wsm_set_multicast_filter(priv, &priv->multicast_filter);
+ if (ret)
+ wiphy_err(priv->hw->wiphy,
+ "Update filtering failed: %d.\n", ret);
+ return;
+}
+
+void cw1200_update_filtering_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common,
+ update_filtering_work);
+
+ cw1200_update_filtering(priv);
+}
+
+void cw1200_set_beacon_wakeup_period_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common,
+ set_beacon_wakeup_period_work);
+
+ wsm_set_beacon_wakeup_period(priv,
+ priv->beacon_int * priv->join_dtim_period >
+ MAX_BEACON_SKIP_TIME_MS ? 1 :
+ priv->join_dtim_period, 0);
+}
+
+u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
+ struct netdev_hw_addr_list *mc_list)
+{
+ static u8 broadcast_ipv6[ETH_ALEN] = {
+ 0x33, 0x33, 0x00, 0x00, 0x00, 0x01
+ };
+ static u8 broadcast_ipv4[ETH_ALEN] = {
+ 0x01, 0x00, 0x5e, 0x00, 0x00, 0x01
+ };
+ struct cw1200_common *priv = hw->priv;
+ struct netdev_hw_addr *ha;
+ int count = 0;
+
+ /* Disable multicast filtering */
+ priv->has_multicast_subscription = false;
+ memset(&priv->multicast_filter, 0x00, sizeof(priv->multicast_filter));
+
+ if (netdev_hw_addr_list_count(mc_list) > WSM_MAX_GRP_ADDRTABLE_ENTRIES)
+ return 0;
+
+ /* Enable if requested */
+ netdev_hw_addr_list_for_each(ha, mc_list) {
+ pr_debug("[STA] multicast: %pM\n", ha->addr);
+ memcpy(&priv->multicast_filter.macaddrs[count],
+ ha->addr, ETH_ALEN);
+ if (!ether_addr_equal(ha->addr, broadcast_ipv4) &&
+ !ether_addr_equal(ha->addr, broadcast_ipv6))
+ priv->has_multicast_subscription = true;
+ count++;
+ }
+
+ if (count) {
+ priv->multicast_filter.enable = __cpu_to_le32(1);
+ priv->multicast_filter.num_addrs = __cpu_to_le32(count);
+ }
+
+ return netdev_hw_addr_list_count(mc_list);
+}
+
+void cw1200_configure_filter(struct ieee80211_hw *dev,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ u64 multicast)
+{
+ struct cw1200_common *priv = dev->priv;
+ bool listening = !!(*total_flags &
+ (FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC |
+ FIF_PROBE_REQ));
+
+ *total_flags &= FIF_OTHER_BSS |
+ FIF_FCSFAIL |
+ FIF_BCN_PRBRESP_PROMISC |
+ FIF_PROBE_REQ;
+
+ down(&priv->scan.lock);
+ mutex_lock(&priv->conf_mutex);
+
+ priv->rx_filter.promiscuous = 0;
+ priv->rx_filter.bssid = (*total_flags & (FIF_OTHER_BSS |
+ FIF_PROBE_REQ)) ? 1 : 0;
+ priv->rx_filter.fcs = (*total_flags & FIF_FCSFAIL) ? 1 : 0;
+ priv->disable_beacon_filter = !(*total_flags &
+ (FIF_BCN_PRBRESP_PROMISC |
+ FIF_PROBE_REQ));
+ if (priv->listening != listening) {
+ priv->listening = listening;
+ wsm_lock_tx(priv);
+ cw1200_update_listening(priv, listening);
+ wsm_unlock_tx(priv);
+ }
+ cw1200_update_filtering(priv);
+ mutex_unlock(&priv->conf_mutex);
+ up(&priv->scan.lock);
+}
+
+int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+ u16 queue, const struct ieee80211_tx_queue_params *params)
+{
+ struct cw1200_common *priv = dev->priv;
+ int ret = 0;
+ /* To prevent re-applying PM request OID again and again*/
+ bool old_uapsd_flags;
+
+ mutex_lock(&priv->conf_mutex);
+
+ if (queue < dev->queues) {
+ old_uapsd_flags = le16_to_cpu(priv->uapsd_info.uapsd_flags);
+
+ WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0);
+ ret = wsm_set_tx_queue_params(priv,
+ &priv->tx_queue_params.params[queue], queue);
+ if (ret) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ WSM_EDCA_SET(&priv->edca, queue, params->aifs,
+ params->cw_min, params->cw_max,
+ params->txop, 0xc8,
+ params->uapsd);
+ ret = wsm_set_edca_params(priv, &priv->edca);
+ if (ret) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (priv->mode == NL80211_IFTYPE_STATION) {
+ ret = cw1200_set_uapsd_param(priv, &priv->edca);
+ if (!ret && priv->setbssparams_done &&
+ (priv->join_status == CW1200_JOIN_STATUS_STA) &&
+ (old_uapsd_flags != le16_to_cpu(priv->uapsd_info.uapsd_flags)))
+ ret = cw1200_set_pm(priv, &priv->powersave_mode);
+ }
+ } else {
+ ret = -EINVAL;
+ }
+
+out:
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
+}
+
+int cw1200_get_stats(struct ieee80211_hw *dev,
+ struct ieee80211_low_level_stats *stats)
+{
+ struct cw1200_common *priv = dev->priv;
+
+ memcpy(stats, &priv->stats, sizeof(*stats));
+ return 0;
+}
+
+int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
+{
+ struct wsm_set_pm pm = *arg;
+
+ if (priv->uapsd_info.uapsd_flags != 0)
+ pm.mode &= ~WSM_PSM_FAST_PS_FLAG;
+
+ if (memcmp(&pm, &priv->firmware_ps_mode,
+ sizeof(struct wsm_set_pm))) {
+ priv->firmware_ps_mode = pm;
+ return wsm_set_pm(priv, &pm);
+ } else {
+ return 0;
+ }
+}
+
+int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ int ret = -EOPNOTSUPP;
+ struct cw1200_common *priv = dev->priv;
+ struct ieee80211_key_seq seq;
+
+ mutex_lock(&priv->conf_mutex);
+
+ if (cmd == SET_KEY) {
+ u8 *peer_addr = NULL;
+ int pairwise = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ?
+ 1 : 0;
+ int idx = cw1200_alloc_key(priv);
+ struct wsm_add_key *wsm_key = &priv->keys[idx];
+
+ if (idx < 0) {
+ ret = -EINVAL;
+ goto finally;
+ }
+
+ if (sta)
+ peer_addr = sta->addr;
+
+ key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE |
+ IEEE80211_KEY_FLAG_RESERVE_TAILROOM;
+
+ switch (key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ if (key->keylen > 16) {
+ cw1200_free_key(priv, idx);
+ ret = -EINVAL;
+ goto finally;
+ }
+
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_WEP_PAIRWISE;
+ memcpy(wsm_key->wep_pairwise.peer,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->wep_pairwise.keydata,
+ &key->key[0], key->keylen);
+ wsm_key->wep_pairwise.keylen = key->keylen;
+ } else {
+ wsm_key->type = WSM_KEY_TYPE_WEP_DEFAULT;
+ memcpy(wsm_key->wep_group.keydata,
+ &key->key[0], key->keylen);
+ wsm_key->wep_group.keylen = key->keylen;
+ wsm_key->wep_group.keyid = key->keyidx;
+ }
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ ieee80211_get_key_rx_seq(key, 0, &seq);
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_TKIP_PAIRWISE;
+ memcpy(wsm_key->tkip_pairwise.peer,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->tkip_pairwise.keydata,
+ &key->key[0], 16);
+ memcpy(wsm_key->tkip_pairwise.tx_mic_key,
+ &key->key[16], 8);
+ memcpy(wsm_key->tkip_pairwise.rx_mic_key,
+ &key->key[24], 8);
+ } else {
+ size_t mic_offset =
+ (priv->mode == NL80211_IFTYPE_AP) ?
+ 16 : 24;
+ wsm_key->type = WSM_KEY_TYPE_TKIP_GROUP;
+ memcpy(wsm_key->tkip_group.keydata,
+ &key->key[0], 16);
+ memcpy(wsm_key->tkip_group.rx_mic_key,
+ &key->key[mic_offset], 8);
+
+ wsm_key->tkip_group.rx_seqnum[0] = seq.tkip.iv16 & 0xff;
+ wsm_key->tkip_group.rx_seqnum[1] = (seq.tkip.iv16 >> 8) & 0xff;
+ wsm_key->tkip_group.rx_seqnum[2] = seq.tkip.iv32 & 0xff;
+ wsm_key->tkip_group.rx_seqnum[3] = (seq.tkip.iv32 >> 8) & 0xff;
+ wsm_key->tkip_group.rx_seqnum[4] = (seq.tkip.iv32 >> 16) & 0xff;
+ wsm_key->tkip_group.rx_seqnum[5] = (seq.tkip.iv32 >> 24) & 0xff;
+ wsm_key->tkip_group.rx_seqnum[6] = 0;
+ wsm_key->tkip_group.rx_seqnum[7] = 0;
+
+ wsm_key->tkip_group.keyid = key->keyidx;
+ }
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ ieee80211_get_key_rx_seq(key, 0, &seq);
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_AES_PAIRWISE;
+ memcpy(wsm_key->aes_pairwise.peer,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->aes_pairwise.keydata,
+ &key->key[0], 16);
+ } else {
+ wsm_key->type = WSM_KEY_TYPE_AES_GROUP;
+ memcpy(wsm_key->aes_group.keydata,
+ &key->key[0], 16);
+
+ wsm_key->aes_group.rx_seqnum[0] = seq.ccmp.pn[5];
+ wsm_key->aes_group.rx_seqnum[1] = seq.ccmp.pn[4];
+ wsm_key->aes_group.rx_seqnum[2] = seq.ccmp.pn[3];
+ wsm_key->aes_group.rx_seqnum[3] = seq.ccmp.pn[2];
+ wsm_key->aes_group.rx_seqnum[4] = seq.ccmp.pn[1];
+ wsm_key->aes_group.rx_seqnum[5] = seq.ccmp.pn[0];
+ wsm_key->aes_group.rx_seqnum[6] = 0;
+ wsm_key->aes_group.rx_seqnum[7] = 0;
+ wsm_key->aes_group.keyid = key->keyidx;
+ }
+ break;
+ case WLAN_CIPHER_SUITE_SMS4:
+ if (pairwise) {
+ wsm_key->type = WSM_KEY_TYPE_WAPI_PAIRWISE;
+ memcpy(wsm_key->wapi_pairwise.peer,
+ peer_addr, ETH_ALEN);
+ memcpy(wsm_key->wapi_pairwise.keydata,
+ &key->key[0], 16);
+ memcpy(wsm_key->wapi_pairwise.mic_key,
+ &key->key[16], 16);
+ wsm_key->wapi_pairwise.keyid = key->keyidx;
+ } else {
+ wsm_key->type = WSM_KEY_TYPE_WAPI_GROUP;
+ memcpy(wsm_key->wapi_group.keydata,
+ &key->key[0], 16);
+ memcpy(wsm_key->wapi_group.mic_key,
+ &key->key[16], 16);
+ wsm_key->wapi_group.keyid = key->keyidx;
+ }
+ break;
+ default:
+ pr_warn("Unhandled key type %d\n", key->cipher);
+ cw1200_free_key(priv, idx);
+ ret = -EOPNOTSUPP;
+ goto finally;
+ }
+ ret = wsm_add_key(priv, wsm_key);
+ if (!ret)
+ key->hw_key_idx = idx;
+ else
+ cw1200_free_key(priv, idx);
+ } else if (cmd == DISABLE_KEY) {
+ struct wsm_remove_key wsm_key = {
+ .index = key->hw_key_idx,
+ };
+
+ if (wsm_key.index > WSM_KEY_MAX_INDEX) {
+ ret = -EINVAL;
+ goto finally;
+ }
+
+ cw1200_free_key(priv, wsm_key.index);
+ ret = wsm_remove_key(priv, &wsm_key);
+ } else {
+ pr_warn("Unhandled key command %d\n", cmd);
+ }
+
+finally:
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
+}
+
+void cw1200_wep_key_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, wep_key_work);
+ u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
+ struct cw1200_queue *queue = &priv->tx_queue[queue_id];
+ __le32 wep_default_key_id = __cpu_to_le32(
+ priv->wep_default_key_id);
+
+ pr_debug("[STA] Setting default WEP key: %d\n",
+ priv->wep_default_key_id);
+ wsm_flush_tx(priv);
+ wsm_write_mib(priv, WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID,
+ &wep_default_key_id, sizeof(wep_default_key_id));
+ cw1200_queue_requeue(queue, priv->pending_frame_id);
+ wsm_unlock_tx(priv);
+}
+
+int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+ int ret = 0;
+ __le32 val32;
+ struct cw1200_common *priv = hw->priv;
+
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+ return 0;
+
+ if (value != (u32) -1)
+ val32 = __cpu_to_le32(value);
+ else
+ val32 = 0; /* disabled */
+
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+ /* device is down, can _not_ set threshold */
+ ret = -ENODEV;
+ goto out;
+ }
+
+ if (priv->rts_threshold == value)
+ goto out;
+
+ pr_debug("[STA] Setting RTS threshold: %d\n",
+ priv->rts_threshold);
+
+ /* mutex_lock(&priv->conf_mutex); */
+ ret = wsm_write_mib(priv, WSM_MIB_ID_DOT11_RTS_THRESHOLD,
+ &val32, sizeof(val32));
+ if (!ret)
+ priv->rts_threshold = value;
+ /* mutex_unlock(&priv->conf_mutex); */
+
+out:
+ return ret;
+}
+
+/* If successful, LOCKS the TX queue! */
+static int __cw1200_flush(struct cw1200_common *priv, bool drop)
+{
+ int i, ret;
+
+ for (;;) {
+ /* TODO: correct flush handling is required when dev_stop.
+ * Temporary workaround: 2s
+ */
+ if (drop) {
+ for (i = 0; i < 4; ++i)
+ cw1200_queue_clear(&priv->tx_queue[i]);
+ } else {
+ ret = wait_event_timeout(
+ priv->tx_queue_stats.wait_link_id_empty,
+ cw1200_queue_stats_is_empty(
+ &priv->tx_queue_stats, -1),
+ 2 * HZ);
+ }
+
+ if (!drop && ret <= 0) {
+ ret = -ETIMEDOUT;
+ break;
+ } else {
+ ret = 0;
+ }
+
+ wsm_lock_tx(priv);
+ if (!cw1200_queue_stats_is_empty(&priv->tx_queue_stats, -1)) {
+ /* Highly unlikely: WSM requeued frames. */
+ wsm_unlock_tx(priv);
+ continue;
+ }
+ break;
+ }
+ return ret;
+}
+
+void cw1200_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u32 queues, bool drop)
+{
+ struct cw1200_common *priv = hw->priv;
+
+ switch (priv->mode) {
+ case NL80211_IFTYPE_MONITOR:
+ drop = true;
+ break;
+ case NL80211_IFTYPE_AP:
+ if (!priv->enable_beacon)
+ drop = true;
+ break;
+ }
+
+ if (!__cw1200_flush(priv, drop))
+ wsm_unlock_tx(priv);
+
+ return;
+}
+
+/* ******************************************************************** */
+/* WSM callbacks */
+
+void cw1200_free_event_queue(struct cw1200_common *priv)
+{
+ LIST_HEAD(list);
+
+ spin_lock(&priv->event_queue_lock);
+ list_splice_init(&priv->event_queue, &list);
+ spin_unlock(&priv->event_queue_lock);
+
+ __cw1200_free_event_queue(&list);
+}
+
+void cw1200_event_handler(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, event_handler);
+ struct cw1200_wsm_event *event;
+ LIST_HEAD(list);
+
+ spin_lock(&priv->event_queue_lock);
+ list_splice_init(&priv->event_queue, &list);
+ spin_unlock(&priv->event_queue_lock);
+
+ list_for_each_entry(event, &list, link) {
+ switch (event->evt.id) {
+ case WSM_EVENT_ERROR:
+ pr_err("Unhandled WSM Error from LMAC\n");
+ break;
+ case WSM_EVENT_BSS_LOST:
+ pr_debug("[CQM] BSS lost.\n");
+ cancel_work_sync(&priv->unjoin_work);
+ if (!down_trylock(&priv->scan.lock)) {
+ cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
+ up(&priv->scan.lock);
+ } else {
+ /* Scan is in progress. Delay reporting.
+ * Scan complete will trigger bss_loss_work
+ */
+ priv->delayed_link_loss = 1;
+ /* Also start a watchdog. */
+ queue_delayed_work(priv->workqueue,
+ &priv->bss_loss_work, 5*HZ);
+ }
+ break;
+ case WSM_EVENT_BSS_REGAINED:
+ pr_debug("[CQM] BSS regained.\n");
+ cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+ cancel_work_sync(&priv->unjoin_work);
+ break;
+ case WSM_EVENT_RADAR_DETECTED:
+ wiphy_info(priv->hw->wiphy, "radar pulse detected\n");
+ break;
+ case WSM_EVENT_RCPI_RSSI:
+ {
+ /* RSSI: signed Q8.0, RCPI: unsigned Q7.1
+ * RSSI = RCPI / 2 - 110
+ */
+ int rcpi_rssi = (int)(event->evt.data & 0xFF);
+ int cqm_evt;
+ if (priv->cqm_use_rssi)
+ rcpi_rssi = (s8)rcpi_rssi;
+ else
+ rcpi_rssi = rcpi_rssi / 2 - 110;
+
+ cqm_evt = (rcpi_rssi <= priv->cqm_rssi_thold) ?
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW :
+ NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
+ pr_debug("[CQM] RSSI event: %d.\n", rcpi_rssi);
+ ieee80211_cqm_rssi_notify(priv->vif, cqm_evt,
+ GFP_KERNEL);
+ break;
+ }
+ case WSM_EVENT_BT_INACTIVE:
+ pr_warn("Unhandled BT INACTIVE from LMAC\n");
+ break;
+ case WSM_EVENT_BT_ACTIVE:
+ pr_warn("Unhandled BT ACTIVE from LMAC\n");
+ break;
+ }
+ }
+ __cw1200_free_event_queue(&list);
+}
+
+void cw1200_bss_loss_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, bss_loss_work.work);
+
+ pr_debug("[CQM] Reporting connection loss.\n");
+ wsm_lock_tx(priv);
+ if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+}
+
+void cw1200_bss_params_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, bss_params_work);
+ mutex_lock(&priv->conf_mutex);
+
+ priv->bss_params.reset_beacon_loss = 1;
+ wsm_set_bss_params(priv, &priv->bss_params);
+ priv->bss_params.reset_beacon_loss = 0;
+
+ mutex_unlock(&priv->conf_mutex);
+}
+
+/* ******************************************************************** */
+/* Internal API */
+
+/* This function is called to Parse the SDD file
+ * to extract listen_interval and PTA related information
+ * sdd is a TLV: u8 id, u8 len, u8 data[]
+ */
+static int cw1200_parse_sdd_file(struct cw1200_common *priv)
+{
+ const u8 *p = priv->sdd->data;
+ int ret = 0;
+
+ while (p + 2 <= priv->sdd->data + priv->sdd->size) {
+ if (p + p[1] + 2 > priv->sdd->data + priv->sdd->size) {
+ pr_warn("Malformed sdd structure\n");
+ return -1;
+ }
+ switch (p[0]) {
+ case SDD_PTA_CFG_ELT_ID: {
+ u16 v;
+ if (p[1] < 4) {
+ pr_warn("SDD_PTA_CFG_ELT_ID malformed\n");
+ ret = -1;
+ break;
+ }
+ v = le16_to_cpu(*((__le16 *)(p + 2)));
+ if (!v) /* non-zero means this is enabled */
+ break;
+
+ v = le16_to_cpu(*((__le16 *)(p + 4)));
+ priv->conf_listen_interval = (v >> 7) & 0x1F;
+ pr_debug("PTA found; Listen Interval %d\n",
+ priv->conf_listen_interval);
+ break;
+ }
+ case SDD_REFERENCE_FREQUENCY_ELT_ID: {
+ u16 clk = le16_to_cpu(*((__le16 *)(p + 2)));
+ if (clk != priv->hw_refclk)
+ pr_warn("SDD file doesn't match configured refclk (%d vs %d)\n",
+ clk, priv->hw_refclk);
+ break;
+ }
+ default:
+ break;
+ }
+ p += p[1] + 2;
+ }
+
+ if (!priv->bt_present) {
+ pr_debug("PTA element NOT found.\n");
+ priv->conf_listen_interval = 0;
+ }
+ return ret;
+}
+
+int cw1200_setup_mac(struct cw1200_common *priv)
+{
+ int ret = 0;
+
+ /* NOTE: There is a bug in FW: it reports signal
+ * as RSSI if RSSI subscription is enabled.
+ * It's not enough to set WSM_RCPI_RSSI_USE_RSSI.
+ *
+ * NOTE2: RSSI based reports have been switched to RCPI, since
+ * FW has a bug and RSSI reported values are not stable,
+ * what can leads to signal level oscilations in user-end applications
+ */
+ struct wsm_rcpi_rssi_threshold threshold = {
+ .rssiRcpiMode = WSM_RCPI_RSSI_THRESHOLD_ENABLE |
+ WSM_RCPI_RSSI_DONT_USE_UPPER |
+ WSM_RCPI_RSSI_DONT_USE_LOWER,
+ .rollingAverageCount = 16,
+ };
+
+ struct wsm_configuration cfg = {
+ .dot11StationId = &priv->mac_addr[0],
+ };
+
+ /* Remember the decission here to make sure, we will handle
+ * the RCPI/RSSI value correctly on WSM_EVENT_RCPI_RSS
+ */
+ if (threshold.rssiRcpiMode & WSM_RCPI_RSSI_USE_RSSI)
+ priv->cqm_use_rssi = true;
+
+ if (!priv->sdd) {
+ ret = request_firmware(&priv->sdd, priv->sdd_path, priv->pdev);
+ if (ret) {
+ pr_err("Can't load sdd file %s.\n", priv->sdd_path);
+ return ret;
+ }
+ cw1200_parse_sdd_file(priv);
+ }
+
+ cfg.dpdData = priv->sdd->data;
+ cfg.dpdData_size = priv->sdd->size;
+ ret = wsm_configuration(priv, &cfg);
+ if (ret)
+ return ret;
+
+ /* Configure RSSI/SCPI reporting as RSSI. */
+ wsm_set_rcpi_rssi_threshold(priv, &threshold);
+
+ return 0;
+}
+
+static void cw1200_join_complete(struct cw1200_common *priv)
+{
+ pr_debug("[STA] Join complete (%d)\n", priv->join_complete_status);
+
+ priv->join_pending = false;
+ if (priv->join_complete_status) {
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ cw1200_update_listening(priv, priv->listening);
+ cw1200_do_unjoin(priv);
+ ieee80211_connection_loss(priv->vif);
+ } else {
+ if (priv->mode == NL80211_IFTYPE_ADHOC)
+ priv->join_status = CW1200_JOIN_STATUS_IBSS;
+ else
+ priv->join_status = CW1200_JOIN_STATUS_PRE_STA;
+ }
+ wsm_unlock_tx(priv); /* Clearing the lock held before do_join() */
+}
+
+void cw1200_join_complete_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, join_complete_work);
+ mutex_lock(&priv->conf_mutex);
+ cw1200_join_complete(priv);
+ mutex_unlock(&priv->conf_mutex);
+}
+
+void cw1200_join_complete_cb(struct cw1200_common *priv,
+ struct wsm_join_complete *arg)
+{
+ pr_debug("[STA] cw1200_join_complete_cb called, status=%d.\n",
+ arg->status);
+
+ if (cancel_delayed_work(&priv->join_timeout)) {
+ priv->join_complete_status = arg->status;
+ queue_work(priv->workqueue, &priv->join_complete_work);
+ }
+}
+
+/* MUST be called with tx_lock held! It will be unlocked for us. */
+static void cw1200_do_join(struct cw1200_common *priv)
+{
+ const u8 *bssid;
+ struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
+ struct cfg80211_bss *bss = NULL;
+ struct wsm_protected_mgmt_policy mgmt_policy;
+ struct wsm_join join = {
+ .mode = conf->ibss_joined ?
+ WSM_JOIN_MODE_IBSS : WSM_JOIN_MODE_BSS,
+ .preamble_type = WSM_JOIN_PREAMBLE_LONG,
+ .probe_for_join = 1,
+ .atim_window = 0,
+ .basic_rate_set = cw1200_rate_mask_to_wsm(priv,
+ conf->basic_rates),
+ };
+ if (delayed_work_pending(&priv->join_timeout)) {
+ pr_warn("[STA] - Join request already pending, skipping..\n");
+ wsm_unlock_tx(priv);
+ return;
+ }
+
+ if (priv->join_status)
+ cw1200_do_unjoin(priv);
+
+ bssid = priv->vif->bss_conf.bssid;
+
+ bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel, bssid, NULL, 0,
+ IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
+
+ if (!bss && !conf->ibss_joined) {
+ wsm_unlock_tx(priv);
+ return;
+ }
+
+ mutex_lock(&priv->conf_mutex);
+
+ /* Under the conf lock: check scan status and
+ * bail out if it is in progress.
+ */
+ if (atomic_read(&priv->scan.in_progress)) {
+ wsm_unlock_tx(priv);
+ goto done_put;
+ }
+
+ priv->join_pending = true;
+
+ /* Sanity check basic rates */
+ if (!join.basic_rate_set)
+ join.basic_rate_set = 7;
+
+ /* Sanity check beacon interval */
+ if (!priv->beacon_int)
+ priv->beacon_int = 1;
+
+ join.beacon_interval = priv->beacon_int;
+
+ /* BT Coex related changes */
+ if (priv->bt_present) {
+ if (((priv->conf_listen_interval * 100) %
+ priv->beacon_int) == 0)
+ priv->listen_interval =
+ ((priv->conf_listen_interval * 100) /
+ priv->beacon_int);
+ else
+ priv->listen_interval =
+ ((priv->conf_listen_interval * 100) /
+ priv->beacon_int + 1);
+ }
+
+ if (priv->hw->conf.ps_dtim_period)
+ priv->join_dtim_period = priv->hw->conf.ps_dtim_period;
+ join.dtim_period = priv->join_dtim_period;
+
+ join.channel_number = priv->channel->hw_value;
+ join.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+ WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+
+ memcpy(join.bssid, bssid, sizeof(join.bssid));
+
+ pr_debug("[STA] Join BSSID: %pM DTIM: %d, interval: %d\n",
+ join.bssid,
+ join.dtim_period, priv->beacon_int);
+
+ if (!conf->ibss_joined) {
+ const u8 *ssidie;
+ rcu_read_lock();
+ ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
+ if (ssidie) {
+ join.ssid_len = ssidie[1];
+ memcpy(join.ssid, &ssidie[2], join.ssid_len);
+ }
+ rcu_read_unlock();
+ }
+
+ if (priv->vif->p2p) {
+ join.flags |= WSM_JOIN_FLAGS_P2P_GO;
+ join.basic_rate_set =
+ cw1200_rate_mask_to_wsm(priv, 0xFF0);
+ }
+
+ /* Enable asynchronous join calls */
+ if (!conf->ibss_joined) {
+ join.flags |= WSM_JOIN_FLAGS_FORCE;
+ join.flags |= WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND;
+ }
+
+ wsm_flush_tx(priv);
+
+ /* Stay Awake for Join and Auth Timeouts and a bit more */
+ cw1200_pm_stay_awake(&priv->pm_state,
+ CW1200_JOIN_TIMEOUT + CW1200_AUTH_TIMEOUT);
+
+ cw1200_update_listening(priv, false);
+
+ /* Turn on Block ACKs */
+ wsm_set_block_ack_policy(priv, priv->ba_tx_tid_mask,
+ priv->ba_rx_tid_mask);
+
+ /* Set up timeout */
+ if (join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND) {
+ priv->join_status = CW1200_JOIN_STATUS_JOINING;
+ queue_delayed_work(priv->workqueue,
+ &priv->join_timeout,
+ CW1200_JOIN_TIMEOUT);
+ }
+
+ /* 802.11w protected mgmt frames */
+ mgmt_policy.protectedMgmtEnable = 0;
+ mgmt_policy.unprotectedMgmtFramesAllowed = 1;
+ mgmt_policy.encryptionForAuthFrame = 1;
+ wsm_set_protected_mgmt_policy(priv, &mgmt_policy);
+
+ /* Perform actual join */
+ if (wsm_join(priv, &join)) {
+ pr_err("[STA] cw1200_join_work: wsm_join failed!\n");
+ cancel_delayed_work_sync(&priv->join_timeout);
+ cw1200_update_listening(priv, priv->listening);
+ /* Tx lock still held, unjoin will clear it. */
+ if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+ } else {
+ if (!(join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND))
+ cw1200_join_complete(priv); /* Will clear tx_lock */
+
+ /* Upload keys */
+ cw1200_upload_keys(priv);
+
+ /* Due to beacon filtering it is possible that the
+ * AP's beacon is not known for the mac80211 stack.
+ * Disable filtering temporary to make sure the stack
+ * receives at least one
+ */
+ priv->disable_beacon_filter = true;
+ }
+ cw1200_update_filtering(priv);
+
+done_put:
+ mutex_unlock(&priv->conf_mutex);
+ if (bss)
+ cfg80211_put_bss(priv->hw->wiphy, bss);
+}
+
+void cw1200_join_timeout(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, join_timeout.work);
+ pr_debug("[WSM] Join timed out.\n");
+ wsm_lock_tx(priv);
+ if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+}
+
+static void cw1200_do_unjoin(struct cw1200_common *priv)
+{
+ struct wsm_reset reset = {
+ .reset_statistics = true,
+ };
+
+ cancel_delayed_work_sync(&priv->join_timeout);
+
+ mutex_lock(&priv->conf_mutex);
+ priv->join_pending = false;
+
+ if (atomic_read(&priv->scan.in_progress)) {
+ if (priv->delayed_unjoin)
+ wiphy_dbg(priv->hw->wiphy, "Delayed unjoin is already scheduled.\n");
+ else
+ priv->delayed_unjoin = true;
+ goto done;
+ }
+
+ priv->delayed_link_loss = false;
+
+ if (!priv->join_status)
+ goto done;
+
+ if (priv->join_status == CW1200_JOIN_STATUS_AP)
+ goto done;
+
+ cancel_work_sync(&priv->update_filtering_work);
+ cancel_work_sync(&priv->set_beacon_wakeup_period_work);
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+
+ /* Unjoin is a reset. */
+ wsm_flush_tx(priv);
+ wsm_keep_alive_period(priv, 0);
+ wsm_reset(priv, &reset);
+ wsm_set_output_power(priv, priv->output_power * 10);
+ priv->join_dtim_period = 0;
+ cw1200_setup_mac(priv);
+ cw1200_free_event_queue(priv);
+ cancel_work_sync(&priv->event_handler);
+ cw1200_update_listening(priv, priv->listening);
+ cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+
+ /* Disable Block ACKs */
+ wsm_set_block_ack_policy(priv, 0, 0);
+
+ priv->disable_beacon_filter = false;
+ cw1200_update_filtering(priv);
+ memset(&priv->association_mode, 0,
+ sizeof(priv->association_mode));
+ memset(&priv->bss_params, 0, sizeof(priv->bss_params));
+ priv->setbssparams_done = false;
+ memset(&priv->firmware_ps_mode, 0,
+ sizeof(priv->firmware_ps_mode));
+
+ pr_debug("[STA] Unjoin completed.\n");
+
+done:
+ mutex_unlock(&priv->conf_mutex);
+}
+
+void cw1200_unjoin_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, unjoin_work);
+
+ cw1200_do_unjoin(priv);
+
+ /* Tell the stack we're dead */
+ ieee80211_connection_loss(priv->vif);
+
+ wsm_unlock_tx(priv);
+}
+
+int cw1200_enable_listening(struct cw1200_common *priv)
+{
+ struct wsm_start start = {
+ .mode = WSM_START_MODE_P2P_DEV,
+ .band = WSM_PHY_BAND_2_4G,
+ .beacon_interval = 100,
+ .dtim_period = 1,
+ .probe_delay = 0,
+ .basic_rate_set = 0x0F,
+ };
+
+ if (priv->channel) {
+ start.band = priv->channel->band == IEEE80211_BAND_5GHZ ?
+ WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+ start.channel_number = priv->channel->hw_value;
+ } else {
+ start.band = WSM_PHY_BAND_2_4G;
+ start.channel_number = 1;
+ }
+
+ return wsm_start(priv, &start);
+}
+
+int cw1200_disable_listening(struct cw1200_common *priv)
+{
+ int ret;
+ struct wsm_reset reset = {
+ .reset_statistics = true,
+ };
+ ret = wsm_reset(priv, &reset);
+ return ret;
+}
+
+void cw1200_update_listening(struct cw1200_common *priv, bool enabled)
+{
+ if (enabled) {
+ if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE) {
+ if (!cw1200_enable_listening(priv))
+ priv->join_status = CW1200_JOIN_STATUS_MONITOR;
+ wsm_set_probe_responder(priv, true);
+ }
+ } else {
+ if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
+ if (!cw1200_disable_listening(priv))
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ wsm_set_probe_responder(priv, false);
+ }
+ }
+}
+
+int cw1200_set_uapsd_param(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg)
+{
+ int ret;
+ u16 uapsd_flags = 0;
+
+ /* Here's the mapping AC [queue, bit]
+ * VO [0,3], VI [1, 2], BE [2, 1], BK [3, 0]
+ */
+
+ if (arg->uapsd_enable[0])
+ uapsd_flags |= 1 << 3;
+
+ if (arg->uapsd_enable[1])
+ uapsd_flags |= 1 << 2;
+
+ if (arg->uapsd_enable[2])
+ uapsd_flags |= 1 << 1;
+
+ if (arg->uapsd_enable[3])
+ uapsd_flags |= 1;
+
+ /* Currently pseudo U-APSD operation is not supported, so setting
+ * MinAutoTriggerInterval, MaxAutoTriggerInterval and
+ * AutoTriggerStep to 0
+ */
+
+ priv->uapsd_info.uapsd_flags = cpu_to_le16(uapsd_flags);
+ priv->uapsd_info.min_auto_trigger_interval = 0;
+ priv->uapsd_info.max_auto_trigger_interval = 0;
+ priv->uapsd_info.auto_trigger_step = 0;
+
+ ret = wsm_set_uapsd_info(priv, &priv->uapsd_info);
+ return ret;
+}
+
+/* ******************************************************************** */
+/* AP API */
+
+int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct cw1200_common *priv = hw->priv;
+ struct cw1200_sta_priv *sta_priv =
+ (struct cw1200_sta_priv *)&sta->drv_priv;
+ struct cw1200_link_entry *entry;
+ struct sk_buff *skb;
+
+ if (priv->mode != NL80211_IFTYPE_AP)
+ return 0;
+
+ sta_priv->link_id = cw1200_find_link_id(priv, sta->addr);
+ if (WARN_ON(!sta_priv->link_id)) {
+ wiphy_info(priv->hw->wiphy,
+ "[AP] No more link IDs available.\n");
+ return -ENOENT;
+ }
+
+ entry = &priv->link_id_db[sta_priv->link_id - 1];
+ spin_lock_bh(&priv->ps_state_lock);
+ if ((sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) ==
+ IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
+ priv->sta_asleep_mask |= BIT(sta_priv->link_id);
+ entry->status = CW1200_LINK_HARD;
+ while ((skb = skb_dequeue(&entry->rx_queue)))
+ ieee80211_rx_irqsafe(priv->hw, skb);
+ spin_unlock_bh(&priv->ps_state_lock);
+ return 0;
+}
+
+int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct cw1200_common *priv = hw->priv;
+ struct cw1200_sta_priv *sta_priv =
+ (struct cw1200_sta_priv *)&sta->drv_priv;
+ struct cw1200_link_entry *entry;
+
+ if (priv->mode != NL80211_IFTYPE_AP || !sta_priv->link_id)
+ return 0;
+
+ entry = &priv->link_id_db[sta_priv->link_id - 1];
+ spin_lock_bh(&priv->ps_state_lock);
+ entry->status = CW1200_LINK_RESERVE;
+ entry->timestamp = jiffies;
+ wsm_lock_tx_async(priv);
+ if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
+ wsm_unlock_tx(priv);
+ spin_unlock_bh(&priv->ps_state_lock);
+ flush_workqueue(priv->workqueue);
+ return 0;
+}
+
+static void __cw1200_sta_notify(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ enum sta_notify_cmd notify_cmd,
+ int link_id)
+{
+ struct cw1200_common *priv = dev->priv;
+ u32 bit, prev;
+
+ /* Zero link id means "for all link IDs" */
+ if (link_id)
+ bit = BIT(link_id);
+ else if (WARN_ON_ONCE(notify_cmd != STA_NOTIFY_AWAKE))
+ bit = 0;
+ else
+ bit = priv->link_id_map;
+ prev = priv->sta_asleep_mask & bit;
+
+ switch (notify_cmd) {
+ case STA_NOTIFY_SLEEP:
+ if (!prev) {
+ if (priv->buffered_multicasts &&
+ !priv->sta_asleep_mask)
+ queue_work(priv->workqueue,
+ &priv->multicast_start_work);
+ priv->sta_asleep_mask |= bit;
+ }
+ break;
+ case STA_NOTIFY_AWAKE:
+ if (prev) {
+ priv->sta_asleep_mask &= ~bit;
+ priv->pspoll_mask &= ~bit;
+ if (priv->tx_multicast && link_id &&
+ !priv->sta_asleep_mask)
+ queue_work(priv->workqueue,
+ &priv->multicast_stop_work);
+ cw1200_bh_wakeup(priv);
+ }
+ break;
+ }
+}
+
+void cw1200_sta_notify(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ enum sta_notify_cmd notify_cmd,
+ struct ieee80211_sta *sta)
+{
+ struct cw1200_common *priv = dev->priv;
+ struct cw1200_sta_priv *sta_priv =
+ (struct cw1200_sta_priv *)&sta->drv_priv;
+
+ spin_lock_bh(&priv->ps_state_lock);
+ __cw1200_sta_notify(dev, vif, notify_cmd, sta_priv->link_id);
+ spin_unlock_bh(&priv->ps_state_lock);
+}
+
+static void cw1200_ps_notify(struct cw1200_common *priv,
+ int link_id, bool ps)
+{
+ if (link_id > CW1200_MAX_STA_IN_AP_MODE)
+ return;
+
+ pr_debug("%s for LinkId: %d. STAs asleep: %.8X\n",
+ ps ? "Stop" : "Start",
+ link_id, priv->sta_asleep_mask);
+
+ __cw1200_sta_notify(priv->hw, priv->vif,
+ ps ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, link_id);
+}
+
+static int cw1200_set_tim_impl(struct cw1200_common *priv, bool aid0_bit_set)
+{
+ struct sk_buff *skb;
+ struct wsm_update_ie update_ie = {
+ .what = WSM_UPDATE_IE_BEACON,
+ .count = 1,
+ };
+ u16 tim_offset, tim_length;
+
+ pr_debug("[AP] mcast: %s.\n", aid0_bit_set ? "ena" : "dis");
+
+ skb = ieee80211_beacon_get_tim(priv->hw, priv->vif,
+ &tim_offset, &tim_length);
+ if (!skb) {
+ if (!__cw1200_flush(priv, true))
+ wsm_unlock_tx(priv);
+ return -ENOENT;
+ }
+
+ if (tim_offset && tim_length >= 6) {
+ /* Ignore DTIM count from mac80211:
+ * firmware handles DTIM internally.
+ */
+ skb->data[tim_offset + 2] = 0;
+
+ /* Set/reset aid0 bit */
+ if (aid0_bit_set)
+ skb->data[tim_offset + 4] |= 1;
+ else
+ skb->data[tim_offset + 4] &= ~1;
+ }
+
+ update_ie.ies = &skb->data[tim_offset];
+ update_ie.length = tim_length;
+ wsm_update_ie(priv, &update_ie);
+
+ dev_kfree_skb(skb);
+
+ return 0;
+}
+
+void cw1200_set_tim_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, set_tim_work);
+ (void)cw1200_set_tim_impl(priv, priv->aid0_bit_set);
+}
+
+int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+ bool set)
+{
+ struct cw1200_common *priv = dev->priv;
+ queue_work(priv->workqueue, &priv->set_tim_work);
+ return 0;
+}
+
+void cw1200_set_cts_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, set_cts_work);
+
+ u8 erp_ie[3] = {WLAN_EID_ERP_INFO, 0x1, 0};
+ struct wsm_update_ie update_ie = {
+ .what = WSM_UPDATE_IE_BEACON,
+ .count = 1,
+ .ies = erp_ie,
+ .length = 3,
+ };
+ u32 erp_info;
+ __le32 use_cts_prot;
+ mutex_lock(&priv->conf_mutex);
+ erp_info = priv->erp_info;
+ mutex_unlock(&priv->conf_mutex);
+ use_cts_prot =
+ erp_info & WLAN_ERP_USE_PROTECTION ?
+ __cpu_to_le32(1) : 0;
+
+ erp_ie[ERP_INFO_BYTE_OFFSET] = erp_info;
+
+ pr_debug("[STA] ERP information 0x%x\n", erp_info);
+
+ wsm_write_mib(priv, WSM_MIB_ID_NON_ERP_PROTECTION,
+ &use_cts_prot, sizeof(use_cts_prot));
+ wsm_update_ie(priv, &update_ie);
+
+ return;
+}
+
+static int cw1200_set_btcoexinfo(struct cw1200_common *priv)
+{
+ struct wsm_override_internal_txrate arg;
+ int ret = 0;
+
+ if (priv->mode == NL80211_IFTYPE_STATION) {
+ /* Plumb PSPOLL and NULL template */
+ cw1200_upload_pspoll(priv);
+ cw1200_upload_null(priv);
+ cw1200_upload_qosnull(priv);
+ } else {
+ return 0;
+ }
+
+ memset(&arg, 0, sizeof(struct wsm_override_internal_txrate));
+
+ if (!priv->vif->p2p) {
+ /* STATION mode */
+ if (priv->bss_params.operational_rate_set & ~0xF) {
+ pr_debug("[STA] STA has ERP rates\n");
+ /* G or BG mode */
+ arg.internalTxRate = (__ffs(
+ priv->bss_params.operational_rate_set & ~0xF));
+ } else {
+ pr_debug("[STA] STA has non ERP rates\n");
+ /* B only mode */
+ arg.internalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set)));
+ }
+ arg.nonErpInternalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set)));
+ } else {
+ /* P2P mode */
+ arg.internalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
+ arg.nonErpInternalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
+ }
+
+ pr_debug("[STA] BTCOEX_INFO MODE %d, internalTxRate : %x, nonErpInternalTxRate: %x\n",
+ priv->mode,
+ arg.internalTxRate,
+ arg.nonErpInternalTxRate);
+
+ ret = wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE,
+ &arg, sizeof(arg));
+
+ return ret;
+}
+
+void cw1200_bss_info_changed(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed)
+{
+ struct cw1200_common *priv = dev->priv;
+ bool do_join = false;
+
+ mutex_lock(&priv->conf_mutex);
+
+ pr_debug("BSS CHANGED: %08x\n", changed);
+
+ /* TODO: BSS_CHANGED_QOS */
+ /* TODO: BSS_CHANGED_TXPOWER */
+
+ if (changed & BSS_CHANGED_ARP_FILTER) {
+ struct wsm_mib_arp_ipv4_filter filter = {0};
+ int i;
+
+ pr_debug("[STA] BSS_CHANGED_ARP_FILTER cnt: %d\n",
+ info->arp_addr_cnt);
+
+ /* Currently only one IP address is supported by firmware.
+ * In case of more IPs arp filtering will be disabled.
+ */
+ if (info->arp_addr_cnt > 0 &&
+ info->arp_addr_cnt <= WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES) {
+ for (i = 0; i < info->arp_addr_cnt; i++) {
+ filter.ipv4addrs[i] = info->arp_addr_list[i];
+ pr_debug("[STA] addr[%d]: 0x%X\n",
+ i, filter.ipv4addrs[i]);
+ }
+ filter.enable = __cpu_to_le32(1);
+ }
+
+ pr_debug("[STA] arp ip filter enable: %d\n",
+ __le32_to_cpu(filter.enable));
+
+ wsm_set_arp_ipv4_filter(priv, &filter);
+ }
+
+ if (changed &
+ (BSS_CHANGED_BEACON |
+ BSS_CHANGED_AP_PROBE_RESP |
+ BSS_CHANGED_BSSID |
+ BSS_CHANGED_SSID |
+ BSS_CHANGED_IBSS)) {
+ pr_debug("BSS_CHANGED_BEACON\n");
+ priv->beacon_int = info->beacon_int;
+ cw1200_update_beaconing(priv);
+ cw1200_upload_beacon(priv);
+ }
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED) {
+ pr_debug("BSS_CHANGED_BEACON_ENABLED (%d)\n", info->enable_beacon);
+
+ if (priv->enable_beacon != info->enable_beacon) {
+ cw1200_enable_beaconing(priv, info->enable_beacon);
+ priv->enable_beacon = info->enable_beacon;
+ }
+ }
+
+ if (changed & BSS_CHANGED_BEACON_INT) {
+ pr_debug("CHANGED_BEACON_INT\n");
+ if (info->ibss_joined)
+ do_join = true;
+ else if (priv->join_status == CW1200_JOIN_STATUS_AP)
+ cw1200_update_beaconing(priv);
+ }
+
+ /* assoc/disassoc, or maybe AID changed */
+ if (changed & BSS_CHANGED_ASSOC) {
+ wsm_lock_tx(priv);
+ priv->wep_default_key_id = -1;
+ wsm_unlock_tx(priv);
+ }
+
+ if (changed & BSS_CHANGED_BSSID) {
+ pr_debug("BSS_CHANGED_BSSID\n");
+ do_join = true;
+ }
+
+ if (changed &
+ (BSS_CHANGED_ASSOC |
+ BSS_CHANGED_BSSID |
+ BSS_CHANGED_IBSS |
+ BSS_CHANGED_BASIC_RATES |
+ BSS_CHANGED_HT)) {
+ pr_debug("BSS_CHANGED_ASSOC\n");
+ if (info->assoc) {
+ if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA) {
+ ieee80211_connection_loss(vif);
+ mutex_unlock(&priv->conf_mutex);
+ return;
+ } else if (priv->join_status == CW1200_JOIN_STATUS_PRE_STA) {
+ priv->join_status = CW1200_JOIN_STATUS_STA;
+ }
+ } else {
+ do_join = true;
+ }
+
+ if (info->assoc || info->ibss_joined) {
+ struct ieee80211_sta *sta = NULL;
+ __le32 htprot = 0;
+
+ if (info->dtim_period)
+ priv->join_dtim_period = info->dtim_period;
+ priv->beacon_int = info->beacon_int;
+
+ rcu_read_lock();
+
+ if (info->bssid && !info->ibss_joined)
+ sta = ieee80211_find_sta(vif, info->bssid);
+ if (sta) {
+ priv->ht_info.ht_cap = sta->ht_cap;
+ priv->bss_params.operational_rate_set =
+ cw1200_rate_mask_to_wsm(priv,
+ sta->supp_rates[priv->channel->band]);
+ priv->ht_info.channel_type = cfg80211_get_chandef_type(&dev->conf.chandef);
+ priv->ht_info.operation_mode = info->ht_operation_mode;
+ } else {
+ memset(&priv->ht_info, 0,
+ sizeof(priv->ht_info));
+ priv->bss_params.operational_rate_set = -1;
+ }
+ rcu_read_unlock();
+
+ /* Non Greenfield stations present */
+ if (priv->ht_info.operation_mode &
+ IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT)
+ htprot |= cpu_to_le32(WSM_NON_GREENFIELD_STA_PRESENT);
+
+ /* Set HT protection method */
+ htprot |= cpu_to_le32((priv->ht_info.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION) << 2);
+
+ /* TODO:
+ * STBC_param.dual_cts
+ * STBC_param.LSIG_TXOP_FILL
+ */
+
+ wsm_write_mib(priv, WSM_MIB_ID_SET_HT_PROTECTION,
+ &htprot, sizeof(htprot));
+
+ priv->association_mode.greenfield =
+ cw1200_ht_greenfield(&priv->ht_info);
+ priv->association_mode.flags =
+ WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES |
+ WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE |
+ WSM_ASSOCIATION_MODE_USE_HT_MODE |
+ WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET |
+ WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING;
+ priv->association_mode.preamble =
+ info->use_short_preamble ?
+ WSM_JOIN_PREAMBLE_SHORT :
+ WSM_JOIN_PREAMBLE_LONG;
+ priv->association_mode.basic_rate_set = __cpu_to_le32(
+ cw1200_rate_mask_to_wsm(priv,
+ info->basic_rates));
+ priv->association_mode.mpdu_start_spacing =
+ cw1200_ht_ampdu_density(&priv->ht_info);
+
+ cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+ cancel_work_sync(&priv->unjoin_work);
+
+ priv->bss_params.beacon_lost_count = priv->cqm_beacon_loss_count;
+ priv->bss_params.aid = info->aid;
+
+ if (priv->join_dtim_period < 1)
+ priv->join_dtim_period = 1;
+
+ pr_debug("[STA] DTIM %d, interval: %d\n",
+ priv->join_dtim_period, priv->beacon_int);
+ pr_debug("[STA] Preamble: %d, Greenfield: %d, Aid: %d, Rates: 0x%.8X, Basic: 0x%.8X\n",
+ priv->association_mode.preamble,
+ priv->association_mode.greenfield,
+ priv->bss_params.aid,
+ priv->bss_params.operational_rate_set,
+ priv->association_mode.basic_rate_set);
+ wsm_set_association_mode(priv, &priv->association_mode);
+
+ if (!info->ibss_joined) {
+ wsm_keep_alive_period(priv, 30 /* sec */);
+ wsm_set_bss_params(priv, &priv->bss_params);
+ priv->setbssparams_done = true;
+ cw1200_set_beacon_wakeup_period_work(&priv->set_beacon_wakeup_period_work);
+ cw1200_set_pm(priv, &priv->powersave_mode);
+ }
+ if (priv->vif->p2p) {
+ pr_debug("[STA] Setting p2p powersave configuration.\n");
+ wsm_set_p2p_ps_modeinfo(priv,
+ &priv->p2p_ps_modeinfo);
+ }
+ if (priv->bt_present)
+ cw1200_set_btcoexinfo(priv);
+ } else {
+ memset(&priv->association_mode, 0,
+ sizeof(priv->association_mode));
+ memset(&priv->bss_params, 0, sizeof(priv->bss_params));
+ }
+ }
+
+ /* ERP Protection */
+ if (changed & (BSS_CHANGED_ASSOC |
+ BSS_CHANGED_ERP_CTS_PROT |
+ BSS_CHANGED_ERP_PREAMBLE)) {
+ u32 prev_erp_info = priv->erp_info;
+ if (info->use_cts_prot)
+ priv->erp_info |= WLAN_ERP_USE_PROTECTION;
+ else if (!(prev_erp_info & WLAN_ERP_NON_ERP_PRESENT))
+ priv->erp_info &= ~WLAN_ERP_USE_PROTECTION;
+
+ if (info->use_short_preamble)
+ priv->erp_info |= WLAN_ERP_BARKER_PREAMBLE;
+ else
+ priv->erp_info &= ~WLAN_ERP_BARKER_PREAMBLE;
+
+ pr_debug("[STA] ERP Protection: %x\n", priv->erp_info);
+
+ if (prev_erp_info != priv->erp_info)
+ queue_work(priv->workqueue, &priv->set_cts_work);
+ }
+
+ /* ERP Slottime */
+ if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_SLOT)) {
+ __le32 slot_time = info->use_short_slot ?
+ __cpu_to_le32(9) : __cpu_to_le32(20);
+ pr_debug("[STA] Slot time: %d us.\n",
+ __le32_to_cpu(slot_time));
+ wsm_write_mib(priv, WSM_MIB_ID_DOT11_SLOT_TIME,
+ &slot_time, sizeof(slot_time));
+ }
+
+ if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_CQM)) {
+ struct wsm_rcpi_rssi_threshold threshold = {
+ .rollingAverageCount = 8,
+ };
+ pr_debug("[CQM] RSSI threshold subscribe: %d +- %d\n",
+ info->cqm_rssi_thold, info->cqm_rssi_hyst);
+ priv->cqm_rssi_thold = info->cqm_rssi_thold;
+ priv->cqm_rssi_hyst = info->cqm_rssi_hyst;
+
+ if (info->cqm_rssi_thold || info->cqm_rssi_hyst) {
+ /* RSSI subscription enabled */
+ /* TODO: It's not a correct way of setting threshold.
+ * Upper and lower must be set equal here and adjusted
+ * in callback. However current implementation is much
+ * more relaible and stable.
+ */
+
+ /* RSSI: signed Q8.0, RCPI: unsigned Q7.1
+ * RSSI = RCPI / 2 - 110
+ */
+ if (priv->cqm_use_rssi) {
+ threshold.upperThreshold =
+ info->cqm_rssi_thold + info->cqm_rssi_hyst;
+ threshold.lowerThreshold =
+ info->cqm_rssi_thold;
+ threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI;
+ } else {
+ threshold.upperThreshold = (info->cqm_rssi_thold + info->cqm_rssi_hyst + 110) * 2;
+ threshold.lowerThreshold = (info->cqm_rssi_thold + 110) * 2;
+ }
+ threshold.rssiRcpiMode |= WSM_RCPI_RSSI_THRESHOLD_ENABLE;
+ } else {
+ /* There is a bug in FW, see sta.c. We have to enable
+ * dummy subscription to get correct RSSI values.
+ */
+ threshold.rssiRcpiMode |=
+ WSM_RCPI_RSSI_THRESHOLD_ENABLE |
+ WSM_RCPI_RSSI_DONT_USE_UPPER |
+ WSM_RCPI_RSSI_DONT_USE_LOWER;
+ if (priv->cqm_use_rssi)
+ threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI;
+ }
+ wsm_set_rcpi_rssi_threshold(priv, &threshold);
+ }
+ mutex_unlock(&priv->conf_mutex);
+
+ if (do_join) {
+ wsm_lock_tx(priv);
+ cw1200_do_join(priv); /* Will unlock it for us */
+ }
+}
+
+void cw1200_multicast_start_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, multicast_start_work);
+ long tmo = priv->join_dtim_period *
+ (priv->beacon_int + 20) * HZ / 1024;
+
+ cancel_work_sync(&priv->multicast_stop_work);
+
+ if (!priv->aid0_bit_set) {
+ wsm_lock_tx(priv);
+ cw1200_set_tim_impl(priv, true);
+ priv->aid0_bit_set = true;
+ mod_timer(&priv->mcast_timeout, jiffies + tmo);
+ wsm_unlock_tx(priv);
+ }
+}
+
+void cw1200_multicast_stop_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, multicast_stop_work);
+
+ if (priv->aid0_bit_set) {
+ del_timer_sync(&priv->mcast_timeout);
+ wsm_lock_tx(priv);
+ priv->aid0_bit_set = false;
+ cw1200_set_tim_impl(priv, false);
+ wsm_unlock_tx(priv);
+ }
+}
+
+void cw1200_mcast_timeout(unsigned long arg)
+{
+ struct cw1200_common *priv =
+ (struct cw1200_common *)arg;
+
+ wiphy_warn(priv->hw->wiphy,
+ "Multicast delivery timeout.\n");
+ spin_lock_bh(&priv->ps_state_lock);
+ priv->tx_multicast = priv->aid0_bit_set &&
+ priv->buffered_multicasts;
+ if (priv->tx_multicast)
+ cw1200_bh_wakeup(priv);
+ spin_unlock_bh(&priv->ps_state_lock);
+}
+
+int cw1200_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+ u8 buf_size, bool amsdu)
+{
+ /* Aggregation is implemented fully in firmware,
+ * including block ack negotiation. Do not allow
+ * mac80211 stack to do anything: it interferes with
+ * the firmware.
+ */
+
+ /* Note that we still need this function stubbed. */
+ return -ENOTSUPP;
+}
+
+/* ******************************************************************** */
+/* WSM callback */
+void cw1200_suspend_resume(struct cw1200_common *priv,
+ struct wsm_suspend_resume *arg)
+{
+ pr_debug("[AP] %s: %s\n",
+ arg->stop ? "stop" : "start",
+ arg->multicast ? "broadcast" : "unicast");
+
+ if (arg->multicast) {
+ bool cancel_tmo = false;
+ spin_lock_bh(&priv->ps_state_lock);
+ if (arg->stop) {
+ priv->tx_multicast = false;
+ } else {
+ /* Firmware sends this indication every DTIM if there
+ * is a STA in powersave connected. There is no reason
+ * to suspend, following wakeup will consume much more
+ * power than it could be saved.
+ */
+ cw1200_pm_stay_awake(&priv->pm_state,
+ priv->join_dtim_period *
+ (priv->beacon_int + 20) * HZ / 1024);
+ priv->tx_multicast = (priv->aid0_bit_set &&
+ priv->buffered_multicasts);
+ if (priv->tx_multicast) {
+ cancel_tmo = true;
+ cw1200_bh_wakeup(priv);
+ }
+ }
+ spin_unlock_bh(&priv->ps_state_lock);
+ if (cancel_tmo)
+ del_timer_sync(&priv->mcast_timeout);
+ } else {
+ spin_lock_bh(&priv->ps_state_lock);
+ cw1200_ps_notify(priv, arg->link_id, arg->stop);
+ spin_unlock_bh(&priv->ps_state_lock);
+ if (!arg->stop)
+ cw1200_bh_wakeup(priv);
+ }
+ return;
+}
+
+/* ******************************************************************** */
+/* AP privates */
+
+static int cw1200_upload_beacon(struct cw1200_common *priv)
+{
+ int ret = 0;
+ struct ieee80211_mgmt *mgmt;
+ struct wsm_template_frame frame = {
+ .frame_type = WSM_FRAME_TYPE_BEACON,
+ };
+
+ u16 tim_offset;
+ u16 tim_len;
+
+ if (priv->mode == NL80211_IFTYPE_STATION ||
+ priv->mode == NL80211_IFTYPE_MONITOR ||
+ priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+ goto done;
+
+ if (priv->vif->p2p)
+ frame.rate = WSM_TRANSMIT_RATE_6;
+
+ frame.skb = ieee80211_beacon_get_tim(priv->hw, priv->vif,
+ &tim_offset, &tim_len);
+ if (!frame.skb)
+ return -ENOMEM;
+
+ ret = wsm_set_template_frame(priv, &frame);
+
+ if (ret)
+ goto done;
+
+ /* TODO: Distill probe resp; remove TIM
+ * and any other beacon-specific IEs
+ */
+ mgmt = (void *)frame.skb->data;
+ mgmt->frame_control =
+ __cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_PROBE_RESP);
+
+ frame.frame_type = WSM_FRAME_TYPE_PROBE_RESPONSE;
+ if (priv->vif->p2p) {
+ ret = wsm_set_probe_responder(priv, true);
+ } else {
+ ret = wsm_set_template_frame(priv, &frame);
+ wsm_set_probe_responder(priv, false);
+ }
+
+done:
+ dev_kfree_skb(frame.skb);
+
+ return ret;
+}
+
+static int cw1200_upload_pspoll(struct cw1200_common *priv)
+{
+ int ret = 0;
+ struct wsm_template_frame frame = {
+ .frame_type = WSM_FRAME_TYPE_PS_POLL,
+ .rate = 0xFF,
+ };
+
+
+ frame.skb = ieee80211_pspoll_get(priv->hw, priv->vif);
+ if (!frame.skb)
+ return -ENOMEM;
+
+ ret = wsm_set_template_frame(priv, &frame);
+
+ dev_kfree_skb(frame.skb);
+
+ return ret;
+}
+
+static int cw1200_upload_null(struct cw1200_common *priv)
+{
+ int ret = 0;
+ struct wsm_template_frame frame = {
+ .frame_type = WSM_FRAME_TYPE_NULL,
+ .rate = 0xFF,
+ };
+
+ frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
+ if (!frame.skb)
+ return -ENOMEM;
+
+ ret = wsm_set_template_frame(priv, &frame);
+
+ dev_kfree_skb(frame.skb);
+
+ return ret;
+}
+
+static int cw1200_upload_qosnull(struct cw1200_common *priv)
+{
+ /* TODO: This needs to be implemented
+
+ struct wsm_template_frame frame = {
+ .frame_type = WSM_FRAME_TYPE_QOS_NULL,
+ .rate = 0xFF,
+ };
+
+ frame.skb = ieee80211_qosnullfunc_get(priv->hw, priv->vif);
+ if (!frame.skb)
+ return -ENOMEM;
+
+ ret = wsm_set_template_frame(priv, &frame);
+
+ dev_kfree_skb(frame.skb);
+
+ */
+ return 0;
+}
+
+static int cw1200_enable_beaconing(struct cw1200_common *priv,
+ bool enable)
+{
+ struct wsm_beacon_transmit transmit = {
+ .enable_beaconing = enable,
+ };
+
+ return wsm_beacon_transmit(priv, &transmit);
+}
+
+static int cw1200_start_ap(struct cw1200_common *priv)
+{
+ int ret;
+ struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
+ struct wsm_start start = {
+ .mode = priv->vif->p2p ?
+ WSM_START_MODE_P2P_GO : WSM_START_MODE_AP,
+ .band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+ WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G,
+ .channel_number = priv->channel->hw_value,
+ .beacon_interval = conf->beacon_int,
+ .dtim_period = conf->dtim_period,
+ .preamble = conf->use_short_preamble ?
+ WSM_JOIN_PREAMBLE_SHORT :
+ WSM_JOIN_PREAMBLE_LONG,
+ .probe_delay = 100,
+ .basic_rate_set = cw1200_rate_mask_to_wsm(priv,
+ conf->basic_rates),
+ };
+ struct wsm_operational_mode mode = {
+ .power_mode = cw1200_power_mode,
+ .disable_more_flag_usage = true,
+ };
+
+ memset(start.ssid, 0, sizeof(start.ssid));
+ if (!conf->hidden_ssid) {
+ start.ssid_len = conf->ssid_len;
+ memcpy(start.ssid, conf->ssid, start.ssid_len);
+ }
+
+ priv->beacon_int = conf->beacon_int;
+ priv->join_dtim_period = conf->dtim_period;
+
+ memset(&priv->link_id_db, 0, sizeof(priv->link_id_db));
+
+ pr_debug("[AP] ch: %d(%d), bcn: %d(%d), brt: 0x%.8X, ssid: %.*s.\n",
+ start.channel_number, start.band,
+ start.beacon_interval, start.dtim_period,
+ start.basic_rate_set,
+ start.ssid_len, start.ssid);
+ ret = wsm_start(priv, &start);
+ if (!ret)
+ ret = cw1200_upload_keys(priv);
+ if (!ret && priv->vif->p2p) {
+ pr_debug("[AP] Setting p2p powersave configuration.\n");
+ wsm_set_p2p_ps_modeinfo(priv, &priv->p2p_ps_modeinfo);
+ }
+ if (!ret) {
+ wsm_set_block_ack_policy(priv, 0, 0);
+ priv->join_status = CW1200_JOIN_STATUS_AP;
+ cw1200_update_filtering(priv);
+ }
+ wsm_set_operational_mode(priv, &mode);
+ return ret;
+}
+
+static int cw1200_update_beaconing(struct cw1200_common *priv)
+{
+ struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
+ struct wsm_reset reset = {
+ .link_id = 0,
+ .reset_statistics = true,
+ };
+
+ if (priv->mode == NL80211_IFTYPE_AP) {
+ /* TODO: check if changed channel, band */
+ if (priv->join_status != CW1200_JOIN_STATUS_AP ||
+ priv->beacon_int != conf->beacon_int) {
+ pr_debug("ap restarting\n");
+ wsm_lock_tx(priv);
+ if (priv->join_status != CW1200_JOIN_STATUS_PASSIVE)
+ wsm_reset(priv, &reset);
+ priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+ cw1200_start_ap(priv);
+ wsm_unlock_tx(priv);
+ } else
+ pr_debug("ap started join_status: %d\n",
+ priv->join_status);
+ }
+ return 0;
+}
--- /dev/null
+/*
+ * Mac80211 STA interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef STA_H_INCLUDED
+#define STA_H_INCLUDED
+
+/* ******************************************************************** */
+/* mac80211 API */
+
+int cw1200_start(struct ieee80211_hw *dev);
+void cw1200_stop(struct ieee80211_hw *dev);
+int cw1200_add_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif);
+void cw1200_remove_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif);
+int cw1200_change_interface(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ enum nl80211_iftype new_type,
+ bool p2p);
+int cw1200_config(struct ieee80211_hw *dev, u32 changed);
+void cw1200_configure_filter(struct ieee80211_hw *dev,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ u64 multicast);
+int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+ u16 queue, const struct ieee80211_tx_queue_params *params);
+int cw1200_get_stats(struct ieee80211_hw *dev,
+ struct ieee80211_low_level_stats *stats);
+int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key);
+
+int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
+
+void cw1200_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u32 queues, bool drop);
+
+u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
+ struct netdev_hw_addr_list *mc_list);
+
+int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
+
+/* ******************************************************************** */
+/* WSM callbacks */
+
+void cw1200_join_complete_cb(struct cw1200_common *priv,
+ struct wsm_join_complete *arg);
+
+/* ******************************************************************** */
+/* WSM events */
+
+void cw1200_free_event_queue(struct cw1200_common *priv);
+void cw1200_event_handler(struct work_struct *work);
+void cw1200_bss_loss_work(struct work_struct *work);
+void cw1200_bss_params_work(struct work_struct *work);
+void cw1200_keep_alive_work(struct work_struct *work);
+void cw1200_tx_failure_work(struct work_struct *work);
+
+void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv, int init, int good,
+ int bad);
+static inline void cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
+ int init, int good, int bad)
+{
+ spin_lock(&priv->bss_loss_lock);
+ __cw1200_cqm_bssloss_sm(priv, init, good, bad);
+ spin_unlock(&priv->bss_loss_lock);
+}
+
+/* ******************************************************************** */
+/* Internal API */
+
+int cw1200_setup_mac(struct cw1200_common *priv);
+void cw1200_join_timeout(struct work_struct *work);
+void cw1200_unjoin_work(struct work_struct *work);
+void cw1200_join_complete_work(struct work_struct *work);
+void cw1200_wep_key_work(struct work_struct *work);
+void cw1200_update_listening(struct cw1200_common *priv, bool enabled);
+void cw1200_update_filtering(struct cw1200_common *priv);
+void cw1200_update_filtering_work(struct work_struct *work);
+void cw1200_set_beacon_wakeup_period_work(struct work_struct *work);
+int cw1200_enable_listening(struct cw1200_common *priv);
+int cw1200_disable_listening(struct cw1200_common *priv);
+int cw1200_set_uapsd_param(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg);
+void cw1200_ba_work(struct work_struct *work);
+void cw1200_ba_timer(unsigned long arg);
+
+/* AP stuffs */
+int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+ bool set);
+int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+void cw1200_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+ enum sta_notify_cmd notify_cmd,
+ struct ieee80211_sta *sta);
+void cw1200_bss_info_changed(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed);
+int cw1200_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+ u8 buf_size, bool amsdu);
+
+void cw1200_suspend_resume(struct cw1200_common *priv,
+ struct wsm_suspend_resume *arg);
+void cw1200_set_tim_work(struct work_struct *work);
+void cw1200_set_cts_work(struct work_struct *work);
+void cw1200_multicast_start_work(struct work_struct *work);
+void cw1200_multicast_stop_work(struct work_struct *work);
+void cw1200_mcast_timeout(unsigned long arg);
+
+#endif
--- /dev/null
+/*
+ * Datapath implementation for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <net/mac80211.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include "cw1200.h"
+#include "wsm.h"
+#include "bh.h"
+#include "sta.h"
+#include "debug.h"
+
+#define CW1200_INVALID_RATE_ID (0xFF)
+
+static int cw1200_handle_action_rx(struct cw1200_common *priv,
+ struct sk_buff *skb);
+static const struct ieee80211_rate *
+cw1200_get_tx_rate(const struct cw1200_common *priv,
+ const struct ieee80211_tx_rate *rate);
+
+/* ******************************************************************** */
+/* TX queue lock / unlock */
+
+static inline void cw1200_tx_queues_lock(struct cw1200_common *priv)
+{
+ int i;
+ for (i = 0; i < 4; ++i)
+ cw1200_queue_lock(&priv->tx_queue[i]);
+}
+
+static inline void cw1200_tx_queues_unlock(struct cw1200_common *priv)
+{
+ int i;
+ for (i = 0; i < 4; ++i)
+ cw1200_queue_unlock(&priv->tx_queue[i]);
+}
+
+/* ******************************************************************** */
+/* TX policy cache implementation */
+
+static void tx_policy_dump(struct tx_policy *policy)
+{
+ pr_debug("[TX policy] %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X: %d\n",
+ policy->raw[0] & 0x0F, policy->raw[0] >> 4,
+ policy->raw[1] & 0x0F, policy->raw[1] >> 4,
+ policy->raw[2] & 0x0F, policy->raw[2] >> 4,
+ policy->raw[3] & 0x0F, policy->raw[3] >> 4,
+ policy->raw[4] & 0x0F, policy->raw[4] >> 4,
+ policy->raw[5] & 0x0F, policy->raw[5] >> 4,
+ policy->raw[6] & 0x0F, policy->raw[6] >> 4,
+ policy->raw[7] & 0x0F, policy->raw[7] >> 4,
+ policy->raw[8] & 0x0F, policy->raw[8] >> 4,
+ policy->raw[9] & 0x0F, policy->raw[9] >> 4,
+ policy->raw[10] & 0x0F, policy->raw[10] >> 4,
+ policy->raw[11] & 0x0F, policy->raw[11] >> 4,
+ policy->defined);
+}
+
+static void tx_policy_build(const struct cw1200_common *priv,
+ /* [out] */ struct tx_policy *policy,
+ struct ieee80211_tx_rate *rates, size_t count)
+{
+ int i, j;
+ unsigned limit = priv->short_frame_max_tx_count;
+ unsigned total = 0;
+ BUG_ON(rates[0].idx < 0);
+ memset(policy, 0, sizeof(*policy));
+
+ /* Sort rates in descending order. */
+ for (i = 1; i < count; ++i) {
+ if (rates[i].idx < 0) {
+ count = i;
+ break;
+ }
+ if (rates[i].idx > rates[i - 1].idx) {
+ struct ieee80211_tx_rate tmp = rates[i - 1];
+ rates[i - 1] = rates[i];
+ rates[i] = tmp;
+ }
+ }
+
+ /* Eliminate duplicates. */
+ total = rates[0].count;
+ for (i = 0, j = 1; j < count; ++j) {
+ if (rates[j].idx == rates[i].idx) {
+ rates[i].count += rates[j].count;
+ } else if (rates[j].idx > rates[i].idx) {
+ break;
+ } else {
+ ++i;
+ if (i != j)
+ rates[i] = rates[j];
+ }
+ total += rates[j].count;
+ }
+ count = i + 1;
+
+ /* Re-fill policy trying to keep every requested rate and with
+ * respect to the global max tx retransmission count.
+ */
+ if (limit < count)
+ limit = count;
+ if (total > limit) {
+ for (i = 0; i < count; ++i) {
+ int left = count - i - 1;
+ if (rates[i].count > limit - left)
+ rates[i].count = limit - left;
+ limit -= rates[i].count;
+ }
+ }
+
+ /* HACK!!! Device has problems (at least) switching from
+ * 54Mbps CTS to 1Mbps. This switch takes enormous amount
+ * of time (100-200 ms), leading to valuable throughput drop.
+ * As a workaround, additional g-rates are injected to the
+ * policy.
+ */
+ if (count == 2 && !(rates[0].flags & IEEE80211_TX_RC_MCS) &&
+ rates[0].idx > 4 && rates[0].count > 2 &&
+ rates[1].idx < 2) {
+ int mid_rate = (rates[0].idx + 4) >> 1;
+
+ /* Decrease number of retries for the initial rate */
+ rates[0].count -= 2;
+
+ if (mid_rate != 4) {
+ /* Keep fallback rate at 1Mbps. */
+ rates[3] = rates[1];
+
+ /* Inject 1 transmission on lowest g-rate */
+ rates[2].idx = 4;
+ rates[2].count = 1;
+ rates[2].flags = rates[1].flags;
+
+ /* Inject 1 transmission on mid-rate */
+ rates[1].idx = mid_rate;
+ rates[1].count = 1;
+
+ /* Fallback to 1 Mbps is a really bad thing,
+ * so let's try to increase probability of
+ * successful transmission on the lowest g rate
+ * even more
+ */
+ if (rates[0].count >= 3) {
+ --rates[0].count;
+ ++rates[2].count;
+ }
+
+ /* Adjust amount of rates defined */
+ count += 2;
+ } else {
+ /* Keep fallback rate at 1Mbps. */
+ rates[2] = rates[1];
+
+ /* Inject 2 transmissions on lowest g-rate */
+ rates[1].idx = 4;
+ rates[1].count = 2;
+
+ /* Adjust amount of rates defined */
+ count += 1;
+ }
+ }
+
+ policy->defined = cw1200_get_tx_rate(priv, &rates[0])->hw_value + 1;
+
+ for (i = 0; i < count; ++i) {
+ register unsigned rateid, off, shift, retries;
+
+ rateid = cw1200_get_tx_rate(priv, &rates[i])->hw_value;
+ off = rateid >> 3; /* eq. rateid / 8 */
+ shift = (rateid & 0x07) << 2; /* eq. (rateid % 8) * 4 */
+
+ retries = rates[i].count;
+ if (retries > 0x0F) {
+ rates[i].count = 0x0f;
+ retries = 0x0F;
+ }
+ policy->tbl[off] |= __cpu_to_le32(retries << shift);
+ policy->retry_count += retries;
+ }
+
+ pr_debug("[TX policy] Policy (%zu): %d:%d, %d:%d, %d:%d, %d:%d\n",
+ count,
+ rates[0].idx, rates[0].count,
+ rates[1].idx, rates[1].count,
+ rates[2].idx, rates[2].count,
+ rates[3].idx, rates[3].count);
+}
+
+static inline bool tx_policy_is_equal(const struct tx_policy *wanted,
+ const struct tx_policy *cached)
+{
+ size_t count = wanted->defined >> 1;
+ if (wanted->defined > cached->defined)
+ return false;
+ if (count) {
+ if (memcmp(wanted->raw, cached->raw, count))
+ return false;
+ }
+ if (wanted->defined & 1) {
+ if ((wanted->raw[count] & 0x0F) != (cached->raw[count] & 0x0F))
+ return false;
+ }
+ return true;
+}
+
+static int tx_policy_find(struct tx_policy_cache *cache,
+ const struct tx_policy *wanted)
+{
+ /* O(n) complexity. Not so good, but there's only 8 entries in
+ * the cache.
+ * Also lru helps to reduce search time.
+ */
+ struct tx_policy_cache_entry *it;
+ /* First search for policy in "used" list */
+ list_for_each_entry(it, &cache->used, link) {
+ if (tx_policy_is_equal(wanted, &it->policy))
+ return it - cache->cache;
+ }
+ /* Then - in "free list" */
+ list_for_each_entry(it, &cache->free, link) {
+ if (tx_policy_is_equal(wanted, &it->policy))
+ return it - cache->cache;
+ }
+ return -1;
+}
+
+static inline void tx_policy_use(struct tx_policy_cache *cache,
+ struct tx_policy_cache_entry *entry)
+{
+ ++entry->policy.usage_count;
+ list_move(&entry->link, &cache->used);
+}
+
+static inline int tx_policy_release(struct tx_policy_cache *cache,
+ struct tx_policy_cache_entry *entry)
+{
+ int ret = --entry->policy.usage_count;
+ if (!ret)
+ list_move(&entry->link, &cache->free);
+ return ret;
+}
+
+void tx_policy_clean(struct cw1200_common *priv)
+{
+ int idx, locked;
+ struct tx_policy_cache *cache = &priv->tx_policy_cache;
+ struct tx_policy_cache_entry *entry;
+
+ cw1200_tx_queues_lock(priv);
+ spin_lock_bh(&cache->lock);
+ locked = list_empty(&cache->free);
+
+ for (idx = 0; idx < TX_POLICY_CACHE_SIZE; idx++) {
+ entry = &cache->cache[idx];
+ /* Policy usage count should be 0 at this time as all queues
+ should be empty
+ */
+ if (WARN_ON(entry->policy.usage_count)) {
+ entry->policy.usage_count = 0;
+ list_move(&entry->link, &cache->free);
+ }
+ memset(&entry->policy, 0, sizeof(entry->policy));
+ }
+ if (locked)
+ cw1200_tx_queues_unlock(priv);
+
+ cw1200_tx_queues_unlock(priv);
+ spin_unlock_bh(&cache->lock);
+}
+
+/* ******************************************************************** */
+/* External TX policy cache API */
+
+void tx_policy_init(struct cw1200_common *priv)
+{
+ struct tx_policy_cache *cache = &priv->tx_policy_cache;
+ int i;
+
+ memset(cache, 0, sizeof(*cache));
+
+ spin_lock_init(&cache->lock);
+ INIT_LIST_HEAD(&cache->used);
+ INIT_LIST_HEAD(&cache->free);
+
+ for (i = 0; i < TX_POLICY_CACHE_SIZE; ++i)
+ list_add(&cache->cache[i].link, &cache->free);
+}
+
+static int tx_policy_get(struct cw1200_common *priv,
+ struct ieee80211_tx_rate *rates,
+ size_t count, bool *renew)
+{
+ int idx;
+ struct tx_policy_cache *cache = &priv->tx_policy_cache;
+ struct tx_policy wanted;
+
+ tx_policy_build(priv, &wanted, rates, count);
+
+ spin_lock_bh(&cache->lock);
+ if (WARN_ON_ONCE(list_empty(&cache->free))) {
+ spin_unlock_bh(&cache->lock);
+ return CW1200_INVALID_RATE_ID;
+ }
+ idx = tx_policy_find(cache, &wanted);
+ if (idx >= 0) {
+ pr_debug("[TX policy] Used TX policy: %d\n", idx);
+ *renew = false;
+ } else {
+ struct tx_policy_cache_entry *entry;
+ *renew = true;
+ /* If policy is not found create a new one
+ * using the oldest entry in "free" list
+ */
+ entry = list_entry(cache->free.prev,
+ struct tx_policy_cache_entry, link);
+ entry->policy = wanted;
+ idx = entry - cache->cache;
+ pr_debug("[TX policy] New TX policy: %d\n", idx);
+ tx_policy_dump(&entry->policy);
+ }
+ tx_policy_use(cache, &cache->cache[idx]);
+ if (list_empty(&cache->free)) {
+ /* Lock TX queues. */
+ cw1200_tx_queues_lock(priv);
+ }
+ spin_unlock_bh(&cache->lock);
+ return idx;
+}
+
+static void tx_policy_put(struct cw1200_common *priv, int idx)
+{
+ int usage, locked;
+ struct tx_policy_cache *cache = &priv->tx_policy_cache;
+
+ spin_lock_bh(&cache->lock);
+ locked = list_empty(&cache->free);
+ usage = tx_policy_release(cache, &cache->cache[idx]);
+ if (locked && !usage) {
+ /* Unlock TX queues. */
+ cw1200_tx_queues_unlock(priv);
+ }
+ spin_unlock_bh(&cache->lock);
+}
+
+static int tx_policy_upload(struct cw1200_common *priv)
+{
+ struct tx_policy_cache *cache = &priv->tx_policy_cache;
+ int i;
+ struct wsm_set_tx_rate_retry_policy arg = {
+ .num = 0,
+ };
+ spin_lock_bh(&cache->lock);
+
+ /* Upload only modified entries. */
+ for (i = 0; i < TX_POLICY_CACHE_SIZE; ++i) {
+ struct tx_policy *src = &cache->cache[i].policy;
+ if (src->retry_count && !src->uploaded) {
+ struct wsm_tx_rate_retry_policy *dst =
+ &arg.tbl[arg.num];
+ dst->index = i;
+ dst->short_retries = priv->short_frame_max_tx_count;
+ dst->long_retries = priv->long_frame_max_tx_count;
+
+ dst->flags = WSM_TX_RATE_POLICY_FLAG_TERMINATE_WHEN_FINISHED |
+ WSM_TX_RATE_POLICY_FLAG_COUNT_INITIAL_TRANSMIT;
+ memcpy(dst->rate_count_indices, src->tbl,
+ sizeof(dst->rate_count_indices));
+ src->uploaded = 1;
+ ++arg.num;
+ }
+ }
+ spin_unlock_bh(&cache->lock);
+ cw1200_debug_tx_cache_miss(priv);
+ pr_debug("[TX policy] Upload %d policies\n", arg.num);
+ return wsm_set_tx_rate_retry_policy(priv, &arg);
+}
+
+void tx_policy_upload_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, tx_policy_upload_work);
+
+ pr_debug("[TX] TX policy upload.\n");
+ tx_policy_upload(priv);
+
+ wsm_unlock_tx(priv);
+ cw1200_tx_queues_unlock(priv);
+}
+
+/* ******************************************************************** */
+/* cw1200 TX implementation */
+
+struct cw1200_txinfo {
+ struct sk_buff *skb;
+ unsigned queue;
+ struct ieee80211_tx_info *tx_info;
+ const struct ieee80211_rate *rate;
+ struct ieee80211_hdr *hdr;
+ size_t hdrlen;
+ const u8 *da;
+ struct cw1200_sta_priv *sta_priv;
+ struct ieee80211_sta *sta;
+ struct cw1200_txpriv txpriv;
+};
+
+u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv, u32 rates)
+{
+ u32 ret = 0;
+ int i;
+ for (i = 0; i < 32; ++i) {
+ if (rates & BIT(i))
+ ret |= BIT(priv->rates[i].hw_value);
+ }
+ return ret;
+}
+
+static const struct ieee80211_rate *
+cw1200_get_tx_rate(const struct cw1200_common *priv,
+ const struct ieee80211_tx_rate *rate)
+{
+ if (rate->idx < 0)
+ return NULL;
+ if (rate->flags & IEEE80211_TX_RC_MCS)
+ return &priv->mcs_rates[rate->idx];
+ return &priv->hw->wiphy->bands[priv->channel->band]->
+ bitrates[rate->idx];
+}
+
+static int
+cw1200_tx_h_calc_link_ids(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ if (t->sta && t->sta_priv->link_id)
+ t->txpriv.raw_link_id =
+ t->txpriv.link_id =
+ t->sta_priv->link_id;
+ else if (priv->mode != NL80211_IFTYPE_AP)
+ t->txpriv.raw_link_id =
+ t->txpriv.link_id = 0;
+ else if (is_multicast_ether_addr(t->da)) {
+ if (priv->enable_beacon) {
+ t->txpriv.raw_link_id = 0;
+ t->txpriv.link_id = CW1200_LINK_ID_AFTER_DTIM;
+ } else {
+ t->txpriv.raw_link_id = 0;
+ t->txpriv.link_id = 0;
+ }
+ } else {
+ t->txpriv.link_id = cw1200_find_link_id(priv, t->da);
+ if (!t->txpriv.link_id)
+ t->txpriv.link_id = cw1200_alloc_link_id(priv, t->da);
+ if (!t->txpriv.link_id) {
+ wiphy_err(priv->hw->wiphy,
+ "No more link IDs available.\n");
+ return -ENOENT;
+ }
+ t->txpriv.raw_link_id = t->txpriv.link_id;
+ }
+ if (t->txpriv.raw_link_id)
+ priv->link_id_db[t->txpriv.raw_link_id - 1].timestamp =
+ jiffies;
+ if (t->sta && (t->sta->uapsd_queues & BIT(t->queue)))
+ t->txpriv.link_id = CW1200_LINK_ID_UAPSD;
+ return 0;
+}
+
+static void
+cw1200_tx_h_pm(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ if (ieee80211_is_auth(t->hdr->frame_control)) {
+ u32 mask = ~BIT(t->txpriv.raw_link_id);
+ spin_lock_bh(&priv->ps_state_lock);
+ priv->sta_asleep_mask &= mask;
+ priv->pspoll_mask &= mask;
+ spin_unlock_bh(&priv->ps_state_lock);
+ }
+}
+
+static void
+cw1200_tx_h_calc_tid(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ if (ieee80211_is_data_qos(t->hdr->frame_control)) {
+ u8 *qos = ieee80211_get_qos_ctl(t->hdr);
+ t->txpriv.tid = qos[0] & IEEE80211_QOS_CTL_TID_MASK;
+ } else if (ieee80211_is_data(t->hdr->frame_control)) {
+ t->txpriv.tid = 0;
+ }
+}
+
+static int
+cw1200_tx_h_crypt(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ if (!t->tx_info->control.hw_key ||
+ !ieee80211_has_protected(t->hdr->frame_control))
+ return 0;
+
+ t->hdrlen += t->tx_info->control.hw_key->iv_len;
+ skb_put(t->skb, t->tx_info->control.hw_key->icv_len);
+
+ if (t->tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
+ skb_put(t->skb, 8); /* MIC space */
+
+ return 0;
+}
+
+static int
+cw1200_tx_h_align(struct cw1200_common *priv,
+ struct cw1200_txinfo *t,
+ u8 *flags)
+{
+ size_t offset = (size_t)t->skb->data & 3;
+
+ if (!offset)
+ return 0;
+
+ if (offset & 1) {
+ wiphy_err(priv->hw->wiphy,
+ "Bug: attempt to transmit a frame with wrong alignment: %zu\n",
+ offset);
+ return -EINVAL;
+ }
+
+ if (skb_headroom(t->skb) < offset) {
+ wiphy_err(priv->hw->wiphy,
+ "Bug: no space allocated for DMA alignment. headroom: %d\n",
+ skb_headroom(t->skb));
+ return -ENOMEM;
+ }
+ skb_push(t->skb, offset);
+ t->hdrlen += offset;
+ t->txpriv.offset += offset;
+ *flags |= WSM_TX_2BYTES_SHIFT;
+ cw1200_debug_tx_align(priv);
+ return 0;
+}
+
+static int
+cw1200_tx_h_action(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ struct ieee80211_mgmt *mgmt =
+ (struct ieee80211_mgmt *)t->hdr;
+ if (ieee80211_is_action(t->hdr->frame_control) &&
+ mgmt->u.action.category == WLAN_CATEGORY_BACK)
+ return 1;
+ else
+ return 0;
+}
+
+/* Add WSM header */
+static struct wsm_tx *
+cw1200_tx_h_wsm(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ struct wsm_tx *wsm;
+
+ if (skb_headroom(t->skb) < sizeof(struct wsm_tx)) {
+ wiphy_err(priv->hw->wiphy,
+ "Bug: no space allocated for WSM header. headroom: %d\n",
+ skb_headroom(t->skb));
+ return NULL;
+ }
+
+ wsm = (struct wsm_tx *)skb_push(t->skb, sizeof(struct wsm_tx));
+ t->txpriv.offset += sizeof(struct wsm_tx);
+ memset(wsm, 0, sizeof(*wsm));
+ wsm->hdr.len = __cpu_to_le16(t->skb->len);
+ wsm->hdr.id = __cpu_to_le16(0x0004);
+ wsm->queue_id = wsm_queue_id_to_wsm(t->queue);
+ return wsm;
+}
+
+/* BT Coex specific handling */
+static void
+cw1200_tx_h_bt(struct cw1200_common *priv,
+ struct cw1200_txinfo *t,
+ struct wsm_tx *wsm)
+{
+ u8 priority = 0;
+
+ if (!priv->bt_present)
+ return;
+
+ if (ieee80211_is_nullfunc(t->hdr->frame_control)) {
+ priority = WSM_EPTA_PRIORITY_MGT;
+ } else if (ieee80211_is_data(t->hdr->frame_control)) {
+ /* Skip LLC SNAP header (+6) */
+ u8 *payload = &t->skb->data[t->hdrlen];
+ __be16 *ethertype = (__be16 *)&payload[6];
+ if (be16_to_cpu(*ethertype) == ETH_P_PAE)
+ priority = WSM_EPTA_PRIORITY_EAPOL;
+ } else if (ieee80211_is_assoc_req(t->hdr->frame_control) ||
+ ieee80211_is_reassoc_req(t->hdr->frame_control)) {
+ struct ieee80211_mgmt *mgt_frame =
+ (struct ieee80211_mgmt *)t->hdr;
+
+ if (le16_to_cpu(mgt_frame->u.assoc_req.listen_interval) <
+ priv->listen_interval) {
+ pr_debug("Modified Listen Interval to %d from %d\n",
+ priv->listen_interval,
+ mgt_frame->u.assoc_req.listen_interval);
+ /* Replace listen interval derieved from
+ * the one read from SDD
+ */
+ mgt_frame->u.assoc_req.listen_interval = cpu_to_le16(priv->listen_interval);
+ }
+ }
+
+ if (!priority) {
+ if (ieee80211_is_action(t->hdr->frame_control))
+ priority = WSM_EPTA_PRIORITY_ACTION;
+ else if (ieee80211_is_mgmt(t->hdr->frame_control))
+ priority = WSM_EPTA_PRIORITY_MGT;
+ else if ((wsm->queue_id == WSM_QUEUE_VOICE))
+ priority = WSM_EPTA_PRIORITY_VOICE;
+ else if ((wsm->queue_id == WSM_QUEUE_VIDEO))
+ priority = WSM_EPTA_PRIORITY_VIDEO;
+ else
+ priority = WSM_EPTA_PRIORITY_DATA;
+ }
+
+ pr_debug("[TX] EPTA priority %d.\n", priority);
+
+ wsm->flags |= priority << 1;
+}
+
+static int
+cw1200_tx_h_rate_policy(struct cw1200_common *priv,
+ struct cw1200_txinfo *t,
+ struct wsm_tx *wsm)
+{
+ bool tx_policy_renew = false;
+
+ t->txpriv.rate_id = tx_policy_get(priv,
+ t->tx_info->control.rates, IEEE80211_TX_MAX_RATES,
+ &tx_policy_renew);
+ if (t->txpriv.rate_id == CW1200_INVALID_RATE_ID)
+ return -EFAULT;
+
+ wsm->flags |= t->txpriv.rate_id << 4;
+
+ t->rate = cw1200_get_tx_rate(priv,
+ &t->tx_info->control.rates[0]),
+ wsm->max_tx_rate = t->rate->hw_value;
+ if (t->rate->flags & IEEE80211_TX_RC_MCS) {
+ if (cw1200_ht_greenfield(&priv->ht_info))
+ wsm->ht_tx_parameters |=
+ __cpu_to_le32(WSM_HT_TX_GREENFIELD);
+ else
+ wsm->ht_tx_parameters |=
+ __cpu_to_le32(WSM_HT_TX_MIXED);
+ }
+
+ if (tx_policy_renew) {
+ pr_debug("[TX] TX policy renew.\n");
+ /* It's not so optimal to stop TX queues every now and then.
+ * Better to reimplement task scheduling with
+ * a counter. TODO.
+ */
+ wsm_lock_tx_async(priv);
+ cw1200_tx_queues_lock(priv);
+ if (queue_work(priv->workqueue,
+ &priv->tx_policy_upload_work) <= 0) {
+ cw1200_tx_queues_unlock(priv);
+ wsm_unlock_tx(priv);
+ }
+ }
+ return 0;
+}
+
+static bool
+cw1200_tx_h_pm_state(struct cw1200_common *priv,
+ struct cw1200_txinfo *t)
+{
+ int was_buffered = 1;
+
+ if (t->txpriv.link_id == CW1200_LINK_ID_AFTER_DTIM &&
+ !priv->buffered_multicasts) {
+ priv->buffered_multicasts = true;
+ if (priv->sta_asleep_mask)
+ queue_work(priv->workqueue,
+ &priv->multicast_start_work);
+ }
+
+ if (t->txpriv.raw_link_id && t->txpriv.tid < CW1200_MAX_TID)
+ was_buffered = priv->link_id_db[t->txpriv.raw_link_id - 1].buffered[t->txpriv.tid]++;
+
+ return !was_buffered;
+}
+
+/* ******************************************************************** */
+
+void cw1200_tx(struct ieee80211_hw *dev,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
+{
+ struct cw1200_common *priv = dev->priv;
+ struct cw1200_txinfo t = {
+ .skb = skb,
+ .queue = skb_get_queue_mapping(skb),
+ .tx_info = IEEE80211_SKB_CB(skb),
+ .hdr = (struct ieee80211_hdr *)skb->data,
+ .txpriv.tid = CW1200_MAX_TID,
+ .txpriv.rate_id = CW1200_INVALID_RATE_ID,
+ };
+ struct ieee80211_sta *sta;
+ struct wsm_tx *wsm;
+ bool tid_update = 0;
+ u8 flags = 0;
+ int ret;
+
+ if (priv->bh_error)
+ goto drop;
+
+ t.hdrlen = ieee80211_hdrlen(t.hdr->frame_control);
+ t.da = ieee80211_get_DA(t.hdr);
+ if (control) {
+ t.sta = control->sta;
+ t.sta_priv = (struct cw1200_sta_priv *)&t.sta->drv_priv;
+ }
+
+ if (WARN_ON(t.queue >= 4))
+ goto drop;
+
+ ret = cw1200_tx_h_calc_link_ids(priv, &t);
+ if (ret)
+ goto drop;
+
+ pr_debug("[TX] TX %d bytes (queue: %d, link_id: %d (%d)).\n",
+ skb->len, t.queue, t.txpriv.link_id,
+ t.txpriv.raw_link_id);
+
+ cw1200_tx_h_pm(priv, &t);
+ cw1200_tx_h_calc_tid(priv, &t);
+ ret = cw1200_tx_h_crypt(priv, &t);
+ if (ret)
+ goto drop;
+ ret = cw1200_tx_h_align(priv, &t, &flags);
+ if (ret)
+ goto drop;
+ ret = cw1200_tx_h_action(priv, &t);
+ if (ret)
+ goto drop;
+ wsm = cw1200_tx_h_wsm(priv, &t);
+ if (!wsm) {
+ ret = -ENOMEM;
+ goto drop;
+ }
+ wsm->flags |= flags;
+ cw1200_tx_h_bt(priv, &t, wsm);
+ ret = cw1200_tx_h_rate_policy(priv, &t, wsm);
+ if (ret)
+ goto drop;
+
+ rcu_read_lock();
+ sta = rcu_dereference(t.sta);
+
+ spin_lock_bh(&priv->ps_state_lock);
+ {
+ tid_update = cw1200_tx_h_pm_state(priv, &t);
+ BUG_ON(cw1200_queue_put(&priv->tx_queue[t.queue],
+ t.skb, &t.txpriv));
+ }
+ spin_unlock_bh(&priv->ps_state_lock);
+
+ if (tid_update && sta)
+ ieee80211_sta_set_buffered(sta, t.txpriv.tid, true);
+
+ rcu_read_unlock();
+
+ cw1200_bh_wakeup(priv);
+
+ return;
+
+drop:
+ cw1200_skb_dtor(priv, skb, &t.txpriv);
+ return;
+}
+
+/* ******************************************************************** */
+
+static int cw1200_handle_action_rx(struct cw1200_common *priv,
+ struct sk_buff *skb)
+{
+ struct ieee80211_mgmt *mgmt = (void *)skb->data;
+
+ /* Filter block ACK negotiation: fully controlled by firmware */
+ if (mgmt->u.action.category == WLAN_CATEGORY_BACK)
+ return 1;
+
+ return 0;
+}
+
+static int cw1200_handle_pspoll(struct cw1200_common *priv,
+ struct sk_buff *skb)
+{
+ struct ieee80211_sta *sta;
+ struct ieee80211_pspoll *pspoll = (struct ieee80211_pspoll *)skb->data;
+ int link_id = 0;
+ u32 pspoll_mask = 0;
+ int drop = 1;
+ int i;
+
+ if (priv->join_status != CW1200_JOIN_STATUS_AP)
+ goto done;
+ if (memcmp(priv->vif->addr, pspoll->bssid, ETH_ALEN))
+ goto done;
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(priv->vif, pspoll->ta);
+ if (sta) {
+ struct cw1200_sta_priv *sta_priv;
+ sta_priv = (struct cw1200_sta_priv *)&sta->drv_priv;
+ link_id = sta_priv->link_id;
+ pspoll_mask = BIT(sta_priv->link_id);
+ }
+ rcu_read_unlock();
+ if (!link_id)
+ goto done;
+
+ priv->pspoll_mask |= pspoll_mask;
+ drop = 0;
+
+ /* Do not report pspols if data for given link id is queued already. */
+ for (i = 0; i < 4; ++i) {
+ if (cw1200_queue_get_num_queued(&priv->tx_queue[i],
+ pspoll_mask)) {
+ cw1200_bh_wakeup(priv);
+ drop = 1;
+ break;
+ }
+ }
+ pr_debug("[RX] PSPOLL: %s\n", drop ? "local" : "fwd");
+done:
+ return drop;
+}
+
+/* ******************************************************************** */
+
+void cw1200_tx_confirm_cb(struct cw1200_common *priv,
+ int link_id,
+ struct wsm_tx_confirm *arg)
+{
+ u8 queue_id = cw1200_queue_get_queue_id(arg->packet_id);
+ struct cw1200_queue *queue = &priv->tx_queue[queue_id];
+ struct sk_buff *skb;
+ const struct cw1200_txpriv *txpriv;
+
+ pr_debug("[TX] TX confirm: %d, %d.\n",
+ arg->status, arg->ack_failures);
+
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+ /* STA is stopped. */
+ return;
+ }
+
+ if (WARN_ON(queue_id >= 4))
+ return;
+
+ if (arg->status)
+ pr_debug("TX failed: %d.\n", arg->status);
+
+ if ((arg->status == WSM_REQUEUE) &&
+ (arg->flags & WSM_TX_STATUS_REQUEUE)) {
+ /* "Requeue" means "implicit suspend" */
+ struct wsm_suspend_resume suspend = {
+ .link_id = link_id,
+ .stop = 1,
+ .multicast = !link_id,
+ };
+ cw1200_suspend_resume(priv, &suspend);
+ wiphy_warn(priv->hw->wiphy, "Requeue for link_id %d (try %d). STAs asleep: 0x%.8X\n",
+ link_id,
+ cw1200_queue_get_generation(arg->packet_id) + 1,
+ priv->sta_asleep_mask);
+ cw1200_queue_requeue(queue, arg->packet_id);
+ spin_lock_bh(&priv->ps_state_lock);
+ if (!link_id) {
+ priv->buffered_multicasts = true;
+ if (priv->sta_asleep_mask) {
+ queue_work(priv->workqueue,
+ &priv->multicast_start_work);
+ }
+ }
+ spin_unlock_bh(&priv->ps_state_lock);
+ } else if (!cw1200_queue_get_skb(queue, arg->packet_id,
+ &skb, &txpriv)) {
+ struct ieee80211_tx_info *tx = IEEE80211_SKB_CB(skb);
+ int tx_count = arg->ack_failures;
+ u8 ht_flags = 0;
+ int i;
+
+ if (cw1200_ht_greenfield(&priv->ht_info))
+ ht_flags |= IEEE80211_TX_RC_GREEN_FIELD;
+
+ spin_lock(&priv->bss_loss_lock);
+ if (priv->bss_loss_state &&
+ arg->packet_id == priv->bss_loss_confirm_id) {
+ if (arg->status) {
+ /* Recovery failed */
+ __cw1200_cqm_bssloss_sm(priv, 0, 0, 1);
+ } else {
+ /* Recovery succeeded */
+ __cw1200_cqm_bssloss_sm(priv, 0, 1, 0);
+ }
+ }
+ spin_unlock(&priv->bss_loss_lock);
+
+ if (!arg->status) {
+ tx->flags |= IEEE80211_TX_STAT_ACK;
+ ++tx_count;
+ cw1200_debug_txed(priv);
+ if (arg->flags & WSM_TX_STATUS_AGGREGATION) {
+ /* Do not report aggregation to mac80211:
+ * it confuses minstrel a lot.
+ */
+ /* tx->flags |= IEEE80211_TX_STAT_AMPDU; */
+ cw1200_debug_txed_agg(priv);
+ }
+ } else {
+ if (tx_count)
+ ++tx_count;
+ }
+
+ for (i = 0; i < IEEE80211_TX_MAX_RATES; ++i) {
+ if (tx->status.rates[i].count >= tx_count) {
+ tx->status.rates[i].count = tx_count;
+ break;
+ }
+ tx_count -= tx->status.rates[i].count;
+ if (tx->status.rates[i].flags & IEEE80211_TX_RC_MCS)
+ tx->status.rates[i].flags |= ht_flags;
+ }
+
+ for (++i; i < IEEE80211_TX_MAX_RATES; ++i) {
+ tx->status.rates[i].count = 0;
+ tx->status.rates[i].idx = -1;
+ }
+
+ /* Pull off any crypto trailers that we added on */
+ if (tx->control.hw_key) {
+ skb_trim(skb, skb->len - tx->control.hw_key->icv_len);
+ if (tx->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
+ skb_trim(skb, skb->len - 8); /* MIC space */
+ }
+ cw1200_queue_remove(queue, arg->packet_id);
+ }
+ /* XXX TODO: Only wake if there are pending transmits.. */
+ cw1200_bh_wakeup(priv);
+}
+
+static void cw1200_notify_buffered_tx(struct cw1200_common *priv,
+ struct sk_buff *skb, int link_id, int tid)
+{
+ struct ieee80211_sta *sta;
+ struct ieee80211_hdr *hdr;
+ u8 *buffered;
+ u8 still_buffered = 0;
+
+ if (link_id && tid < CW1200_MAX_TID) {
+ buffered = priv->link_id_db
+ [link_id - 1].buffered;
+
+ spin_lock_bh(&priv->ps_state_lock);
+ if (!WARN_ON(!buffered[tid]))
+ still_buffered = --buffered[tid];
+ spin_unlock_bh(&priv->ps_state_lock);
+
+ if (!still_buffered && tid < CW1200_MAX_TID) {
+ hdr = (struct ieee80211_hdr *)skb->data;
+ rcu_read_lock();
+ sta = ieee80211_find_sta(priv->vif, hdr->addr1);
+ if (sta)
+ ieee80211_sta_set_buffered(sta, tid, false);
+ rcu_read_unlock();
+ }
+ }
+}
+
+void cw1200_skb_dtor(struct cw1200_common *priv,
+ struct sk_buff *skb,
+ const struct cw1200_txpriv *txpriv)
+{
+ skb_pull(skb, txpriv->offset);
+ if (txpriv->rate_id != CW1200_INVALID_RATE_ID) {
+ cw1200_notify_buffered_tx(priv, skb,
+ txpriv->raw_link_id, txpriv->tid);
+ tx_policy_put(priv, txpriv->rate_id);
+ }
+ ieee80211_tx_status(priv->hw, skb);
+}
+
+void cw1200_rx_cb(struct cw1200_common *priv,
+ struct wsm_rx *arg,
+ int link_id,
+ struct sk_buff **skb_p)
+{
+ struct sk_buff *skb = *skb_p;
+ struct ieee80211_rx_status *hdr = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *frame = (struct ieee80211_hdr *)skb->data;
+ struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+ struct cw1200_link_entry *entry = NULL;
+ unsigned long grace_period;
+
+ bool early_data = false;
+ bool p2p = priv->vif && priv->vif->p2p;
+ size_t hdrlen;
+ hdr->flag = 0;
+
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+ /* STA is stopped. */
+ goto drop;
+ }
+
+ if (link_id && link_id <= CW1200_MAX_STA_IN_AP_MODE) {
+ entry = &priv->link_id_db[link_id - 1];
+ if (entry->status == CW1200_LINK_SOFT &&
+ ieee80211_is_data(frame->frame_control))
+ early_data = true;
+ entry->timestamp = jiffies;
+ } else if (p2p &&
+ ieee80211_is_action(frame->frame_control) &&
+ (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
+ pr_debug("[RX] Going to MAP&RESET link ID\n");
+ WARN_ON(work_pending(&priv->linkid_reset_work));
+ memcpy(&priv->action_frame_sa[0],
+ ieee80211_get_SA(frame), ETH_ALEN);
+ priv->action_linkid = 0;
+ schedule_work(&priv->linkid_reset_work);
+ }
+
+ if (link_id && p2p &&
+ ieee80211_is_action(frame->frame_control) &&
+ (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
+ /* Link ID already exists for the ACTION frame.
+ * Reset and Remap
+ */
+ WARN_ON(work_pending(&priv->linkid_reset_work));
+ memcpy(&priv->action_frame_sa[0],
+ ieee80211_get_SA(frame), ETH_ALEN);
+ priv->action_linkid = link_id;
+ schedule_work(&priv->linkid_reset_work);
+ }
+ if (arg->status) {
+ if (arg->status == WSM_STATUS_MICFAILURE) {
+ pr_debug("[RX] MIC failure.\n");
+ hdr->flag |= RX_FLAG_MMIC_ERROR;
+ } else if (arg->status == WSM_STATUS_NO_KEY_FOUND) {
+ pr_debug("[RX] No key found.\n");
+ goto drop;
+ } else {
+ pr_debug("[RX] Receive failure: %d.\n",
+ arg->status);
+ goto drop;
+ }
+ }
+
+ if (skb->len < sizeof(struct ieee80211_pspoll)) {
+ wiphy_warn(priv->hw->wiphy, "Mailformed SDU rx'ed. Size is lesser than IEEE header.\n");
+ goto drop;
+ }
+
+ if (ieee80211_is_pspoll(frame->frame_control))
+ if (cw1200_handle_pspoll(priv, skb))
+ goto drop;
+
+ hdr->band = ((arg->channel_number & 0xff00) ||
+ (arg->channel_number > 14)) ?
+ IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
+ hdr->freq = ieee80211_channel_to_frequency(
+ arg->channel_number,
+ hdr->band);
+
+ if (arg->rx_rate >= 14) {
+ hdr->flag |= RX_FLAG_HT;
+ hdr->rate_idx = arg->rx_rate - 14;
+ } else if (arg->rx_rate >= 4) {
+ hdr->rate_idx = arg->rx_rate - 2;
+ } else {
+ hdr->rate_idx = arg->rx_rate;
+ }
+
+ hdr->signal = (s8)arg->rcpi_rssi;
+ hdr->antenna = 0;
+
+ hdrlen = ieee80211_hdrlen(frame->frame_control);
+
+ if (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
+ size_t iv_len = 0, icv_len = 0;
+
+ hdr->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED;
+
+ /* Oops... There is no fast way to ask mac80211 about
+ * IV/ICV lengths. Even defineas are not exposed.
+ */
+ switch (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
+ case WSM_RX_STATUS_WEP:
+ iv_len = 4 /* WEP_IV_LEN */;
+ icv_len = 4 /* WEP_ICV_LEN */;
+ break;
+ case WSM_RX_STATUS_TKIP:
+ iv_len = 8 /* TKIP_IV_LEN */;
+ icv_len = 4 /* TKIP_ICV_LEN */
+ + 8 /*MICHAEL_MIC_LEN*/;
+ hdr->flag |= RX_FLAG_MMIC_STRIPPED;
+ break;
+ case WSM_RX_STATUS_AES:
+ iv_len = 8 /* CCMP_HDR_LEN */;
+ icv_len = 8 /* CCMP_MIC_LEN */;
+ break;
+ case WSM_RX_STATUS_WAPI:
+ iv_len = 18 /* WAPI_HDR_LEN */;
+ icv_len = 16 /* WAPI_MIC_LEN */;
+ break;
+ default:
+ pr_warn("Unknown encryption type %d\n",
+ WSM_RX_STATUS_ENCRYPTION(arg->flags));
+ goto drop;
+ }
+
+ /* Firmware strips ICV in case of MIC failure. */
+ if (arg->status == WSM_STATUS_MICFAILURE)
+ icv_len = 0;
+
+ if (skb->len < hdrlen + iv_len + icv_len) {
+ wiphy_warn(priv->hw->wiphy, "Malformed SDU rx'ed. Size is lesser than crypto headers.\n");
+ goto drop;
+ }
+
+ /* Remove IV, ICV and MIC */
+ skb_trim(skb, skb->len - icv_len);
+ memmove(skb->data + iv_len, skb->data, hdrlen);
+ skb_pull(skb, iv_len);
+ }
+
+ /* Remove TSF from the end of frame */
+ if (arg->flags & WSM_RX_STATUS_TSF_INCLUDED) {
+ memcpy(&hdr->mactime, skb->data + skb->len - 8, 8);
+ hdr->mactime = le64_to_cpu(hdr->mactime);
+ if (skb->len >= 8)
+ skb_trim(skb, skb->len - 8);
+ } else {
+ hdr->mactime = 0;
+ }
+
+ cw1200_debug_rxed(priv);
+ if (arg->flags & WSM_RX_STATUS_AGGREGATE)
+ cw1200_debug_rxed_agg(priv);
+
+ if (ieee80211_is_action(frame->frame_control) &&
+ (arg->flags & WSM_RX_STATUS_ADDRESS1)) {
+ if (cw1200_handle_action_rx(priv, skb))
+ return;
+ } else if (ieee80211_is_beacon(frame->frame_control) &&
+ !arg->status && priv->vif &&
+ ether_addr_equal(ieee80211_get_SA(frame), priv->vif->bss_conf.bssid)) {
+ const u8 *tim_ie;
+ u8 *ies = ((struct ieee80211_mgmt *)
+ (skb->data))->u.beacon.variable;
+ size_t ies_len = skb->len - (ies - (u8 *)(skb->data));
+
+ tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies, ies_len);
+ if (tim_ie) {
+ struct ieee80211_tim_ie *tim =
+ (struct ieee80211_tim_ie *)&tim_ie[2];
+
+ if (priv->join_dtim_period != tim->dtim_period) {
+ priv->join_dtim_period = tim->dtim_period;
+ queue_work(priv->workqueue,
+ &priv->set_beacon_wakeup_period_work);
+ }
+ }
+
+ /* Disable beacon filter once we're associated... */
+ if (priv->disable_beacon_filter &&
+ (priv->vif->bss_conf.assoc ||
+ priv->vif->bss_conf.ibss_joined)) {
+ priv->disable_beacon_filter = false;
+ queue_work(priv->workqueue,
+ &priv->update_filtering_work);
+ }
+ }
+
+ /* Stay awake after frame is received to give
+ * userspace chance to react and acquire appropriate
+ * wakelock.
+ */
+ if (ieee80211_is_auth(frame->frame_control))
+ grace_period = 5 * HZ;
+ else if (ieee80211_is_deauth(frame->frame_control))
+ grace_period = 5 * HZ;
+ else
+ grace_period = 1 * HZ;
+ cw1200_pm_stay_awake(&priv->pm_state, grace_period);
+
+ if (early_data) {
+ spin_lock_bh(&priv->ps_state_lock);
+ /* Double-check status with lock held */
+ if (entry->status == CW1200_LINK_SOFT)
+ skb_queue_tail(&entry->rx_queue, skb);
+ else
+ ieee80211_rx_irqsafe(priv->hw, skb);
+ spin_unlock_bh(&priv->ps_state_lock);
+ } else {
+ ieee80211_rx_irqsafe(priv->hw, skb);
+ }
+ *skb_p = NULL;
+
+ return;
+
+drop:
+ /* TODO: update failure counters */
+ return;
+}
+
+/* ******************************************************************** */
+/* Security */
+
+int cw1200_alloc_key(struct cw1200_common *priv)
+{
+ int idx;
+
+ idx = ffs(~priv->key_map) - 1;
+ if (idx < 0 || idx > WSM_KEY_MAX_INDEX)
+ return -1;
+
+ priv->key_map |= BIT(idx);
+ priv->keys[idx].index = idx;
+ return idx;
+}
+
+void cw1200_free_key(struct cw1200_common *priv, int idx)
+{
+ BUG_ON(!(priv->key_map & BIT(idx)));
+ memset(&priv->keys[idx], 0, sizeof(priv->keys[idx]));
+ priv->key_map &= ~BIT(idx);
+}
+
+void cw1200_free_keys(struct cw1200_common *priv)
+{
+ memset(&priv->keys, 0, sizeof(priv->keys));
+ priv->key_map = 0;
+}
+
+int cw1200_upload_keys(struct cw1200_common *priv)
+{
+ int idx, ret = 0;
+ for (idx = 0; idx <= WSM_KEY_MAX_INDEX; ++idx)
+ if (priv->key_map & BIT(idx)) {
+ ret = wsm_add_key(priv, &priv->keys[idx]);
+ if (ret < 0)
+ break;
+ }
+ return ret;
+}
+
+/* Workaround for WFD test case 6.1.10 */
+void cw1200_link_id_reset(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, linkid_reset_work);
+ int temp_linkid;
+
+ if (!priv->action_linkid) {
+ /* In GO mode we can receive ACTION frames without a linkID */
+ temp_linkid = cw1200_alloc_link_id(priv,
+ &priv->action_frame_sa[0]);
+ WARN_ON(!temp_linkid);
+ if (temp_linkid) {
+ /* Make sure we execute the WQ */
+ flush_workqueue(priv->workqueue);
+ /* Release the link ID */
+ spin_lock_bh(&priv->ps_state_lock);
+ priv->link_id_db[temp_linkid - 1].prev_status =
+ priv->link_id_db[temp_linkid - 1].status;
+ priv->link_id_db[temp_linkid - 1].status =
+ CW1200_LINK_RESET;
+ spin_unlock_bh(&priv->ps_state_lock);
+ wsm_lock_tx_async(priv);
+ if (queue_work(priv->workqueue,
+ &priv->link_id_work) <= 0)
+ wsm_unlock_tx(priv);
+ }
+ } else {
+ spin_lock_bh(&priv->ps_state_lock);
+ priv->link_id_db[priv->action_linkid - 1].prev_status =
+ priv->link_id_db[priv->action_linkid - 1].status;
+ priv->link_id_db[priv->action_linkid - 1].status =
+ CW1200_LINK_RESET_REMAP;
+ spin_unlock_bh(&priv->ps_state_lock);
+ wsm_lock_tx_async(priv);
+ if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
+ wsm_unlock_tx(priv);
+ flush_workqueue(priv->workqueue);
+ }
+}
+
+int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac)
+{
+ int i, ret = 0;
+ spin_lock_bh(&priv->ps_state_lock);
+ for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+ if (!memcmp(mac, priv->link_id_db[i].mac, ETH_ALEN) &&
+ priv->link_id_db[i].status) {
+ priv->link_id_db[i].timestamp = jiffies;
+ ret = i + 1;
+ break;
+ }
+ }
+ spin_unlock_bh(&priv->ps_state_lock);
+ return ret;
+}
+
+int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac)
+{
+ int i, ret = 0;
+ unsigned long max_inactivity = 0;
+ unsigned long now = jiffies;
+
+ spin_lock_bh(&priv->ps_state_lock);
+ for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+ if (!priv->link_id_db[i].status) {
+ ret = i + 1;
+ break;
+ } else if (priv->link_id_db[i].status != CW1200_LINK_HARD &&
+ !priv->tx_queue_stats.link_map_cache[i + 1]) {
+ unsigned long inactivity =
+ now - priv->link_id_db[i].timestamp;
+ if (inactivity < max_inactivity)
+ continue;
+ max_inactivity = inactivity;
+ ret = i + 1;
+ }
+ }
+ if (ret) {
+ struct cw1200_link_entry *entry = &priv->link_id_db[ret - 1];
+ pr_debug("[AP] STA added, link_id: %d\n", ret);
+ entry->status = CW1200_LINK_RESERVE;
+ memcpy(&entry->mac, mac, ETH_ALEN);
+ memset(&entry->buffered, 0, CW1200_MAX_TID);
+ skb_queue_head_init(&entry->rx_queue);
+ wsm_lock_tx_async(priv);
+ if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
+ wsm_unlock_tx(priv);
+ } else {
+ wiphy_info(priv->hw->wiphy,
+ "[AP] Early: no more link IDs available.\n");
+ }
+
+ spin_unlock_bh(&priv->ps_state_lock);
+ return ret;
+}
+
+void cw1200_link_id_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, link_id_work);
+ wsm_flush_tx(priv);
+ cw1200_link_id_gc_work(&priv->link_id_gc_work.work);
+ wsm_unlock_tx(priv);
+}
+
+void cw1200_link_id_gc_work(struct work_struct *work)
+{
+ struct cw1200_common *priv =
+ container_of(work, struct cw1200_common, link_id_gc_work.work);
+ struct wsm_reset reset = {
+ .reset_statistics = false,
+ };
+ struct wsm_map_link map_link = {
+ .link_id = 0,
+ };
+ unsigned long now = jiffies;
+ unsigned long next_gc = -1;
+ long ttl;
+ bool need_reset;
+ u32 mask;
+ int i;
+
+ if (priv->join_status != CW1200_JOIN_STATUS_AP)
+ return;
+
+ wsm_lock_tx(priv);
+ spin_lock_bh(&priv->ps_state_lock);
+ for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+ need_reset = false;
+ mask = BIT(i + 1);
+ if (priv->link_id_db[i].status == CW1200_LINK_RESERVE ||
+ (priv->link_id_db[i].status == CW1200_LINK_HARD &&
+ !(priv->link_id_map & mask))) {
+ if (priv->link_id_map & mask) {
+ priv->sta_asleep_mask &= ~mask;
+ priv->pspoll_mask &= ~mask;
+ need_reset = true;
+ }
+ priv->link_id_map |= mask;
+ if (priv->link_id_db[i].status != CW1200_LINK_HARD)
+ priv->link_id_db[i].status = CW1200_LINK_SOFT;
+ memcpy(map_link.mac_addr, priv->link_id_db[i].mac,
+ ETH_ALEN);
+ spin_unlock_bh(&priv->ps_state_lock);
+ if (need_reset) {
+ reset.link_id = i + 1;
+ wsm_reset(priv, &reset);
+ }
+ map_link.link_id = i + 1;
+ wsm_map_link(priv, &map_link);
+ next_gc = min(next_gc, CW1200_LINK_ID_GC_TIMEOUT);
+ spin_lock_bh(&priv->ps_state_lock);
+ } else if (priv->link_id_db[i].status == CW1200_LINK_SOFT) {
+ ttl = priv->link_id_db[i].timestamp - now +
+ CW1200_LINK_ID_GC_TIMEOUT;
+ if (ttl <= 0) {
+ need_reset = true;
+ priv->link_id_db[i].status = CW1200_LINK_OFF;
+ priv->link_id_map &= ~mask;
+ priv->sta_asleep_mask &= ~mask;
+ priv->pspoll_mask &= ~mask;
+ eth_zero_addr(map_link.mac_addr);
+ spin_unlock_bh(&priv->ps_state_lock);
+ reset.link_id = i + 1;
+ wsm_reset(priv, &reset);
+ spin_lock_bh(&priv->ps_state_lock);
+ } else {
+ next_gc = min_t(unsigned long, next_gc, ttl);
+ }
+ } else if (priv->link_id_db[i].status == CW1200_LINK_RESET ||
+ priv->link_id_db[i].status ==
+ CW1200_LINK_RESET_REMAP) {
+ int status = priv->link_id_db[i].status;
+ priv->link_id_db[i].status =
+ priv->link_id_db[i].prev_status;
+ priv->link_id_db[i].timestamp = now;
+ reset.link_id = i + 1;
+ spin_unlock_bh(&priv->ps_state_lock);
+ wsm_reset(priv, &reset);
+ if (status == CW1200_LINK_RESET_REMAP) {
+ memcpy(map_link.mac_addr,
+ priv->link_id_db[i].mac,
+ ETH_ALEN);
+ map_link.link_id = i + 1;
+ wsm_map_link(priv, &map_link);
+ next_gc = min(next_gc,
+ CW1200_LINK_ID_GC_TIMEOUT);
+ }
+ spin_lock_bh(&priv->ps_state_lock);
+ }
+ if (need_reset) {
+ skb_queue_purge(&priv->link_id_db[i].rx_queue);
+ pr_debug("[AP] STA removed, link_id: %d\n",
+ reset.link_id);
+ }
+ }
+ spin_unlock_bh(&priv->ps_state_lock);
+ if (next_gc != -1)
+ queue_delayed_work(priv->workqueue,
+ &priv->link_id_gc_work, next_gc);
+ wsm_unlock_tx(priv);
+}
--- /dev/null
+/*
+ * Datapath interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_TXRX_H
+#define CW1200_TXRX_H
+
+#include <linux/list.h>
+
+/* extern */ struct ieee80211_hw;
+/* extern */ struct sk_buff;
+/* extern */ struct wsm_tx;
+/* extern */ struct wsm_rx;
+/* extern */ struct wsm_tx_confirm;
+/* extern */ struct cw1200_txpriv;
+
+struct tx_policy {
+ union {
+ __le32 tbl[3];
+ u8 raw[12];
+ };
+ u8 defined;
+ u8 usage_count;
+ u8 retry_count;
+ u8 uploaded;
+};
+
+struct tx_policy_cache_entry {
+ struct tx_policy policy;
+ struct list_head link;
+};
+
+#define TX_POLICY_CACHE_SIZE (8)
+struct tx_policy_cache {
+ struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
+ struct list_head used;
+ struct list_head free;
+ spinlock_t lock; /* Protect policy cache */
+};
+
+/* ******************************************************************** */
+/* TX policy cache */
+/* Intention of TX policy cache is an overcomplicated WSM API.
+ * Device does not accept per-PDU tx retry sequence.
+ * It uses "tx retry policy id" instead, so driver code has to sync
+ * linux tx retry sequences with a retry policy table in the device.
+ */
+void tx_policy_init(struct cw1200_common *priv);
+void tx_policy_upload_work(struct work_struct *work);
+void tx_policy_clean(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* TX implementation */
+
+u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
+ u32 rates);
+void cw1200_tx(struct ieee80211_hw *dev,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb);
+void cw1200_skb_dtor(struct cw1200_common *priv,
+ struct sk_buff *skb,
+ const struct cw1200_txpriv *txpriv);
+
+/* ******************************************************************** */
+/* WSM callbacks */
+
+void cw1200_tx_confirm_cb(struct cw1200_common *priv,
+ int link_id,
+ struct wsm_tx_confirm *arg);
+void cw1200_rx_cb(struct cw1200_common *priv,
+ struct wsm_rx *arg,
+ int link_id,
+ struct sk_buff **skb_p);
+
+/* ******************************************************************** */
+/* Timeout */
+
+void cw1200_tx_timeout(struct work_struct *work);
+
+/* ******************************************************************** */
+/* Security */
+int cw1200_alloc_key(struct cw1200_common *priv);
+void cw1200_free_key(struct cw1200_common *priv, int idx);
+void cw1200_free_keys(struct cw1200_common *priv);
+int cw1200_upload_keys(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* Workaround for WFD test case 6.1.10 */
+void cw1200_link_id_reset(struct work_struct *work);
+
+#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
+
+int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
+int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
+void cw1200_link_id_work(struct work_struct *work);
+void cw1200_link_id_gc_work(struct work_struct *work);
+
+
+#endif /* CW1200_TXRX_H */
--- /dev/null
+/*
+ * WSM host interface (HI) implementation for
+ * ST-Ericsson CW1200 mac80211 drivers.
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/skbuff.h>
+#include <linux/wait.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/random.h>
+
+#include "cw1200.h"
+#include "wsm.h"
+#include "bh.h"
+#include "sta.h"
+#include "debug.h"
+
+#define WSM_CMD_TIMEOUT (2 * HZ) /* With respect to interrupt loss */
+#define WSM_CMD_START_TIMEOUT (7 * HZ)
+#define WSM_CMD_RESET_TIMEOUT (3 * HZ) /* 2 sec. timeout was observed. */
+#define WSM_CMD_MAX_TIMEOUT (3 * HZ)
+
+#define WSM_SKIP(buf, size) \
+ do { \
+ if ((buf)->data + size > (buf)->end) \
+ goto underflow; \
+ (buf)->data += size; \
+ } while (0)
+
+#define WSM_GET(buf, ptr, size) \
+ do { \
+ if ((buf)->data + size > (buf)->end) \
+ goto underflow; \
+ memcpy(ptr, (buf)->data, size); \
+ (buf)->data += size; \
+ } while (0)
+
+#define __WSM_GET(buf, type, type2, cvt) \
+ ({ \
+ type val; \
+ if ((buf)->data + sizeof(type) > (buf)->end) \
+ goto underflow; \
+ val = cvt(*(type2 *)(buf)->data); \
+ (buf)->data += sizeof(type); \
+ val; \
+ })
+
+#define WSM_GET8(buf) __WSM_GET(buf, u8, u8, (u8))
+#define WSM_GET16(buf) __WSM_GET(buf, u16, __le16, __le16_to_cpu)
+#define WSM_GET32(buf) __WSM_GET(buf, u32, __le32, __le32_to_cpu)
+
+#define WSM_PUT(buf, ptr, size) \
+ do { \
+ if ((buf)->data + size > (buf)->end) \
+ if (wsm_buf_reserve((buf), size)) \
+ goto nomem; \
+ memcpy((buf)->data, ptr, size); \
+ (buf)->data += size; \
+ } while (0)
+
+#define __WSM_PUT(buf, val, type, type2, cvt) \
+ do { \
+ if ((buf)->data + sizeof(type) > (buf)->end) \
+ if (wsm_buf_reserve((buf), sizeof(type))) \
+ goto nomem; \
+ *(type2 *)(buf)->data = cvt(val); \
+ (buf)->data += sizeof(type); \
+ } while (0)
+
+#define WSM_PUT8(buf, val) __WSM_PUT(buf, val, u8, u8, (u8))
+#define WSM_PUT16(buf, val) __WSM_PUT(buf, val, u16, __le16, __cpu_to_le16)
+#define WSM_PUT32(buf, val) __WSM_PUT(buf, val, u32, __le32, __cpu_to_le32)
+
+static void wsm_buf_reset(struct wsm_buf *buf);
+static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size);
+
+static int wsm_cmd_send(struct cw1200_common *priv,
+ struct wsm_buf *buf,
+ void *arg, u16 cmd, long tmo);
+
+#define wsm_cmd_lock(__priv) mutex_lock(&((__priv)->wsm_cmd_mux))
+#define wsm_cmd_unlock(__priv) mutex_unlock(&((__priv)->wsm_cmd_mux))
+
+/* ******************************************************************** */
+/* WSM API implementation */
+
+static int wsm_generic_confirm(struct cw1200_common *priv,
+ void *arg,
+ struct wsm_buf *buf)
+{
+ u32 status = WSM_GET32(buf);
+ if (status != WSM_STATUS_SUCCESS)
+ return -EINVAL;
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+int wsm_configuration(struct cw1200_common *priv, struct wsm_configuration *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT32(buf, arg->dot11MaxTransmitMsduLifeTime);
+ WSM_PUT32(buf, arg->dot11MaxReceiveLifeTime);
+ WSM_PUT32(buf, arg->dot11RtsThreshold);
+
+ /* DPD block. */
+ WSM_PUT16(buf, arg->dpdData_size + 12);
+ WSM_PUT16(buf, 1); /* DPD version */
+ WSM_PUT(buf, arg->dot11StationId, ETH_ALEN);
+ WSM_PUT16(buf, 5); /* DPD flags */
+ WSM_PUT(buf, arg->dpdData, arg->dpdData_size);
+
+ ret = wsm_cmd_send(priv, buf, arg,
+ WSM_CONFIGURATION_REQ_ID, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+static int wsm_configuration_confirm(struct cw1200_common *priv,
+ struct wsm_configuration *arg,
+ struct wsm_buf *buf)
+{
+ int i;
+ int status;
+
+ status = WSM_GET32(buf);
+ if (WARN_ON(status != WSM_STATUS_SUCCESS))
+ return -EINVAL;
+
+ WSM_GET(buf, arg->dot11StationId, ETH_ALEN);
+ arg->dot11FrequencyBandsSupported = WSM_GET8(buf);
+ WSM_SKIP(buf, 1);
+ arg->supportedRateMask = WSM_GET32(buf);
+ for (i = 0; i < 2; ++i) {
+ arg->txPowerRange[i].min_power_level = WSM_GET32(buf);
+ arg->txPowerRange[i].max_power_level = WSM_GET32(buf);
+ arg->txPowerRange[i].stepping = WSM_GET32(buf);
+ }
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+/* ******************************************************************** */
+
+int wsm_reset(struct cw1200_common *priv, const struct wsm_reset *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ u16 cmd = WSM_RESET_REQ_ID | WSM_TX_LINK_ID(arg->link_id);
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT32(buf, arg->reset_statistics ? 0 : 1);
+ ret = wsm_cmd_send(priv, buf, NULL, cmd, WSM_CMD_RESET_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+struct wsm_mib {
+ u16 mib_id;
+ void *buf;
+ size_t buf_size;
+};
+
+int wsm_read_mib(struct cw1200_common *priv, u16 mib_id, void *_buf,
+ size_t buf_size)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ struct wsm_mib mib_buf = {
+ .mib_id = mib_id,
+ .buf = _buf,
+ .buf_size = buf_size,
+ };
+ wsm_cmd_lock(priv);
+
+ WSM_PUT16(buf, mib_id);
+ WSM_PUT16(buf, 0);
+
+ ret = wsm_cmd_send(priv, buf, &mib_buf,
+ WSM_READ_MIB_REQ_ID, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+static int wsm_read_mib_confirm(struct cw1200_common *priv,
+ struct wsm_mib *arg,
+ struct wsm_buf *buf)
+{
+ u16 size;
+ if (WARN_ON(WSM_GET32(buf) != WSM_STATUS_SUCCESS))
+ return -EINVAL;
+
+ if (WARN_ON(WSM_GET16(buf) != arg->mib_id))
+ return -EINVAL;
+
+ size = WSM_GET16(buf);
+ if (size > arg->buf_size)
+ size = arg->buf_size;
+
+ WSM_GET(buf, arg->buf, size);
+ arg->buf_size = size;
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+/* ******************************************************************** */
+
+int wsm_write_mib(struct cw1200_common *priv, u16 mib_id, void *_buf,
+ size_t buf_size)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ struct wsm_mib mib_buf = {
+ .mib_id = mib_id,
+ .buf = _buf,
+ .buf_size = buf_size,
+ };
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT16(buf, mib_id);
+ WSM_PUT16(buf, buf_size);
+ WSM_PUT(buf, _buf, buf_size);
+
+ ret = wsm_cmd_send(priv, buf, &mib_buf,
+ WSM_WRITE_MIB_REQ_ID, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+static int wsm_write_mib_confirm(struct cw1200_common *priv,
+ struct wsm_mib *arg,
+ struct wsm_buf *buf)
+{
+ int ret;
+
+ ret = wsm_generic_confirm(priv, arg, buf);
+ if (ret)
+ return ret;
+
+ if (arg->mib_id == WSM_MIB_ID_OPERATIONAL_POWER_MODE) {
+ /* OperationalMode: update PM status. */
+ const char *p = arg->buf;
+ cw1200_enable_powersave(priv, (p[0] & 0x0F) ? true : false);
+ }
+ return 0;
+}
+
+/* ******************************************************************** */
+
+int wsm_scan(struct cw1200_common *priv, const struct wsm_scan *arg)
+{
+ int i;
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ if (arg->num_channels > 48)
+ return -EINVAL;
+
+ if (arg->num_ssids > 2)
+ return -EINVAL;
+
+ if (arg->band > 1)
+ return -EINVAL;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, arg->band);
+ WSM_PUT8(buf, arg->type);
+ WSM_PUT8(buf, arg->flags);
+ WSM_PUT8(buf, arg->max_tx_rate);
+ WSM_PUT32(buf, arg->auto_scan_interval);
+ WSM_PUT8(buf, arg->num_probes);
+ WSM_PUT8(buf, arg->num_channels);
+ WSM_PUT8(buf, arg->num_ssids);
+ WSM_PUT8(buf, arg->probe_delay);
+
+ for (i = 0; i < arg->num_channels; ++i) {
+ WSM_PUT16(buf, arg->ch[i].number);
+ WSM_PUT16(buf, 0);
+ WSM_PUT32(buf, arg->ch[i].min_chan_time);
+ WSM_PUT32(buf, arg->ch[i].max_chan_time);
+ WSM_PUT32(buf, 0);
+ }
+
+ for (i = 0; i < arg->num_ssids; ++i) {
+ WSM_PUT32(buf, arg->ssids[i].length);
+ WSM_PUT(buf, &arg->ssids[i].ssid[0],
+ sizeof(arg->ssids[i].ssid));
+ }
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_START_SCAN_REQ_ID, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_stop_scan(struct cw1200_common *priv)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ wsm_cmd_lock(priv);
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_STOP_SCAN_REQ_ID, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+}
+
+
+static int wsm_tx_confirm(struct cw1200_common *priv,
+ struct wsm_buf *buf,
+ int link_id)
+{
+ struct wsm_tx_confirm tx_confirm;
+
+ tx_confirm.packet_id = WSM_GET32(buf);
+ tx_confirm.status = WSM_GET32(buf);
+ tx_confirm.tx_rate = WSM_GET8(buf);
+ tx_confirm.ack_failures = WSM_GET8(buf);
+ tx_confirm.flags = WSM_GET16(buf);
+ tx_confirm.media_delay = WSM_GET32(buf);
+ tx_confirm.tx_queue_delay = WSM_GET32(buf);
+
+ cw1200_tx_confirm_cb(priv, link_id, &tx_confirm);
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+static int wsm_multi_tx_confirm(struct cw1200_common *priv,
+ struct wsm_buf *buf, int link_id)
+{
+ int ret;
+ int count;
+ int i;
+
+ count = WSM_GET32(buf);
+ if (WARN_ON(count <= 0))
+ return -EINVAL;
+
+ if (count > 1) {
+ /* We already released one buffer, now for the rest */
+ ret = wsm_release_tx_buffer(priv, count - 1);
+ if (ret < 0)
+ return ret;
+ else if (ret > 0)
+ cw1200_bh_wakeup(priv);
+ }
+
+ cw1200_debug_txed_multi(priv, count);
+ for (i = 0; i < count; ++i) {
+ ret = wsm_tx_confirm(priv, buf, link_id);
+ if (ret)
+ return ret;
+ }
+ return ret;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+/* ******************************************************************** */
+
+static int wsm_join_confirm(struct cw1200_common *priv,
+ struct wsm_join_cnf *arg,
+ struct wsm_buf *buf)
+{
+ arg->status = WSM_GET32(buf);
+ if (WARN_ON(arg->status) != WSM_STATUS_SUCCESS)
+ return -EINVAL;
+
+ arg->min_power_level = WSM_GET32(buf);
+ arg->max_power_level = WSM_GET32(buf);
+
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+int wsm_join(struct cw1200_common *priv, struct wsm_join *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ struct wsm_join_cnf resp;
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, arg->mode);
+ WSM_PUT8(buf, arg->band);
+ WSM_PUT16(buf, arg->channel_number);
+ WSM_PUT(buf, &arg->bssid[0], sizeof(arg->bssid));
+ WSM_PUT16(buf, arg->atim_window);
+ WSM_PUT8(buf, arg->preamble_type);
+ WSM_PUT8(buf, arg->probe_for_join);
+ WSM_PUT8(buf, arg->dtim_period);
+ WSM_PUT8(buf, arg->flags);
+ WSM_PUT32(buf, arg->ssid_len);
+ WSM_PUT(buf, &arg->ssid[0], sizeof(arg->ssid));
+ WSM_PUT32(buf, arg->beacon_interval);
+ WSM_PUT32(buf, arg->basic_rate_set);
+
+ priv->tx_burst_idx = -1;
+ ret = wsm_cmd_send(priv, buf, &resp,
+ WSM_JOIN_REQ_ID, WSM_CMD_TIMEOUT);
+ /* TODO: Update state based on resp.min|max_power_level */
+
+ priv->join_complete_status = resp.status;
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_bss_params(struct cw1200_common *priv,
+ const struct wsm_set_bss_params *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, (arg->reset_beacon_loss ? 0x1 : 0));
+ WSM_PUT8(buf, arg->beacon_lost_count);
+ WSM_PUT16(buf, arg->aid);
+ WSM_PUT32(buf, arg->operational_rate_set);
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_SET_BSS_PARAMS_REQ_ID, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_add_key(struct cw1200_common *priv, const struct wsm_add_key *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT(buf, arg, sizeof(*arg));
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_ADD_KEY_REQ_ID, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_remove_key(struct cw1200_common *priv, const struct wsm_remove_key *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, arg->index);
+ WSM_PUT8(buf, 0);
+ WSM_PUT16(buf, 0);
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_REMOVE_KEY_REQ_ID, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_tx_queue_params(struct cw1200_common *priv,
+ const struct wsm_set_tx_queue_params *arg, u8 id)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ u8 queue_id_to_wmm_aci[] = {3, 2, 0, 1};
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, queue_id_to_wmm_aci[id]);
+ WSM_PUT8(buf, 0);
+ WSM_PUT8(buf, arg->ackPolicy);
+ WSM_PUT8(buf, 0);
+ WSM_PUT32(buf, arg->maxTransmitLifetime);
+ WSM_PUT16(buf, arg->allowedMediumTime);
+ WSM_PUT16(buf, 0);
+
+ ret = wsm_cmd_send(priv, buf, NULL, 0x0012, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_edca_params(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ /* Implemented according to specification. */
+
+ WSM_PUT16(buf, arg->params[3].cwmin);
+ WSM_PUT16(buf, arg->params[2].cwmin);
+ WSM_PUT16(buf, arg->params[1].cwmin);
+ WSM_PUT16(buf, arg->params[0].cwmin);
+
+ WSM_PUT16(buf, arg->params[3].cwmax);
+ WSM_PUT16(buf, arg->params[2].cwmax);
+ WSM_PUT16(buf, arg->params[1].cwmax);
+ WSM_PUT16(buf, arg->params[0].cwmax);
+
+ WSM_PUT8(buf, arg->params[3].aifns);
+ WSM_PUT8(buf, arg->params[2].aifns);
+ WSM_PUT8(buf, arg->params[1].aifns);
+ WSM_PUT8(buf, arg->params[0].aifns);
+
+ WSM_PUT16(buf, arg->params[3].txop_limit);
+ WSM_PUT16(buf, arg->params[2].txop_limit);
+ WSM_PUT16(buf, arg->params[1].txop_limit);
+ WSM_PUT16(buf, arg->params[0].txop_limit);
+
+ WSM_PUT32(buf, arg->params[3].max_rx_lifetime);
+ WSM_PUT32(buf, arg->params[2].max_rx_lifetime);
+ WSM_PUT32(buf, arg->params[1].max_rx_lifetime);
+ WSM_PUT32(buf, arg->params[0].max_rx_lifetime);
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_EDCA_PARAMS_REQ_ID, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_switch_channel(struct cw1200_common *priv,
+ const struct wsm_switch_channel *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, arg->mode);
+ WSM_PUT8(buf, arg->switch_count);
+ WSM_PUT16(buf, arg->channel_number);
+
+ priv->channel_switch_in_progress = 1;
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_SWITCH_CHANNEL_REQ_ID, WSM_CMD_TIMEOUT);
+ if (ret)
+ priv->channel_switch_in_progress = 0;
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ priv->ps_mode_switch_in_progress = 1;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, arg->mode);
+ WSM_PUT8(buf, arg->fast_psm_idle_period);
+ WSM_PUT8(buf, arg->ap_psm_change_period);
+ WSM_PUT8(buf, arg->min_auto_pspoll_period);
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_SET_PM_REQ_ID, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_start(struct cw1200_common *priv, const struct wsm_start *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT8(buf, arg->mode);
+ WSM_PUT8(buf, arg->band);
+ WSM_PUT16(buf, arg->channel_number);
+ WSM_PUT32(buf, arg->ct_window);
+ WSM_PUT32(buf, arg->beacon_interval);
+ WSM_PUT8(buf, arg->dtim_period);
+ WSM_PUT8(buf, arg->preamble);
+ WSM_PUT8(buf, arg->probe_delay);
+ WSM_PUT8(buf, arg->ssid_len);
+ WSM_PUT(buf, arg->ssid, sizeof(arg->ssid));
+ WSM_PUT32(buf, arg->basic_rate_set);
+
+ priv->tx_burst_idx = -1;
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_START_REQ_ID, WSM_CMD_START_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_beacon_transmit(struct cw1200_common *priv,
+ const struct wsm_beacon_transmit *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT32(buf, arg->enable_beaconing ? 1 : 0);
+
+ ret = wsm_cmd_send(priv, buf, NULL,
+ WSM_BEACON_TRANSMIT_REQ_ID, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_start_find(struct cw1200_common *priv)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+ ret = wsm_cmd_send(priv, buf, NULL, 0x0019, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+}
+
+/* ******************************************************************** */
+
+int wsm_stop_find(struct cw1200_common *priv)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+ ret = wsm_cmd_send(priv, buf, NULL, 0x001A, WSM_CMD_TIMEOUT);
+ wsm_cmd_unlock(priv);
+ return ret;
+}
+
+/* ******************************************************************** */
+
+int wsm_map_link(struct cw1200_common *priv, const struct wsm_map_link *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+ u16 cmd = 0x001C | WSM_TX_LINK_ID(arg->link_id);
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT(buf, &arg->mac_addr[0], sizeof(arg->mac_addr));
+ WSM_PUT16(buf, 0);
+
+ ret = wsm_cmd_send(priv, buf, NULL, cmd, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_update_ie(struct cw1200_common *priv,
+ const struct wsm_update_ie *arg)
+{
+ int ret;
+ struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+ wsm_cmd_lock(priv);
+
+ WSM_PUT16(buf, arg->what);
+ WSM_PUT16(buf, arg->count);
+ WSM_PUT(buf, arg->ies, arg->length);
+
+ ret = wsm_cmd_send(priv, buf, NULL, 0x001B, WSM_CMD_TIMEOUT);
+
+ wsm_cmd_unlock(priv);
+ return ret;
+
+nomem:
+ wsm_cmd_unlock(priv);
+ return -ENOMEM;
+}
+
+/* ******************************************************************** */
+int wsm_set_probe_responder(struct cw1200_common *priv, bool enable)
+{
+ priv->rx_filter.probeResponder = enable;
+ return wsm_set_rx_filter(priv, &priv->rx_filter);
+}
+
+/* ******************************************************************** */
+/* WSM indication events implementation */
+const char * const cw1200_fw_types[] = {
+ "ETF",
+ "WFM",
+ "WSM",
+ "HI test",
+ "Platform test"
+};
+
+static int wsm_startup_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ priv->wsm_caps.input_buffers = WSM_GET16(buf);
+ priv->wsm_caps.input_buffer_size = WSM_GET16(buf);
+ priv->wsm_caps.hw_id = WSM_GET16(buf);
+ priv->wsm_caps.hw_subid = WSM_GET16(buf);
+ priv->wsm_caps.status = WSM_GET16(buf);
+ priv->wsm_caps.fw_cap = WSM_GET16(buf);
+ priv->wsm_caps.fw_type = WSM_GET16(buf);
+ priv->wsm_caps.fw_api = WSM_GET16(buf);
+ priv->wsm_caps.fw_build = WSM_GET16(buf);
+ priv->wsm_caps.fw_ver = WSM_GET16(buf);
+ WSM_GET(buf, priv->wsm_caps.fw_label, sizeof(priv->wsm_caps.fw_label));
+ priv->wsm_caps.fw_label[sizeof(priv->wsm_caps.fw_label) - 1] = 0; /* Do not trust FW too much... */
+
+ if (WARN_ON(priv->wsm_caps.status))
+ return -EINVAL;
+
+ if (WARN_ON(priv->wsm_caps.fw_type > 4))
+ return -EINVAL;
+
+ pr_info("CW1200 WSM init done.\n"
+ " Input buffers: %d x %d bytes\n"
+ " Hardware: %d.%d\n"
+ " %s firmware [%s], ver: %d, build: %d,"
+ " api: %d, cap: 0x%.4X\n",
+ priv->wsm_caps.input_buffers,
+ priv->wsm_caps.input_buffer_size,
+ priv->wsm_caps.hw_id, priv->wsm_caps.hw_subid,
+ cw1200_fw_types[priv->wsm_caps.fw_type],
+ priv->wsm_caps.fw_label, priv->wsm_caps.fw_ver,
+ priv->wsm_caps.fw_build,
+ priv->wsm_caps.fw_api, priv->wsm_caps.fw_cap);
+
+ /* Disable unsupported frequency bands */
+ if (!(priv->wsm_caps.fw_cap & 0x1))
+ priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
+ if (!(priv->wsm_caps.fw_cap & 0x2))
+ priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
+
+ priv->firmware_ready = 1;
+ wake_up(&priv->wsm_startup_done);
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+static int wsm_receive_indication(struct cw1200_common *priv,
+ int link_id,
+ struct wsm_buf *buf,
+ struct sk_buff **skb_p)
+{
+ struct wsm_rx rx;
+ struct ieee80211_hdr *hdr;
+ size_t hdr_len;
+ __le16 fctl;
+
+ rx.status = WSM_GET32(buf);
+ rx.channel_number = WSM_GET16(buf);
+ rx.rx_rate = WSM_GET8(buf);
+ rx.rcpi_rssi = WSM_GET8(buf);
+ rx.flags = WSM_GET32(buf);
+
+ /* FW Workaround: Drop probe resp or
+ beacon when RSSI is 0
+ */
+ hdr = (struct ieee80211_hdr *)(*skb_p)->data;
+
+ if (!rx.rcpi_rssi &&
+ (ieee80211_is_probe_resp(hdr->frame_control) ||
+ ieee80211_is_beacon(hdr->frame_control)))
+ return 0;
+
+ /* If no RSSI subscription has been made,
+ * convert RCPI to RSSI here
+ */
+ if (!priv->cqm_use_rssi)
+ rx.rcpi_rssi = rx.rcpi_rssi / 2 - 110;
+
+ fctl = *(__le16 *)buf->data;
+ hdr_len = buf->data - buf->begin;
+ skb_pull(*skb_p, hdr_len);
+ if (!rx.status && ieee80211_is_deauth(fctl)) {
+ if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+ /* Shedule unjoin work */
+ pr_debug("[WSM] Issue unjoin command (RX).\n");
+ wsm_lock_tx_async(priv);
+ if (queue_work(priv->workqueue,
+ &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+ }
+ }
+ cw1200_rx_cb(priv, &rx, link_id, skb_p);
+ if (*skb_p)
+ skb_push(*skb_p, hdr_len);
+
+ return 0;
+
+underflow:
+ return -EINVAL;
+}
+
+static int wsm_event_indication(struct cw1200_common *priv, struct wsm_buf *buf)
+{
+ int first;
+ struct cw1200_wsm_event *event;
+
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+ /* STA is stopped. */
+ return 0;
+ }
+
+ event = kzalloc(sizeof(struct cw1200_wsm_event), GFP_KERNEL);
+ if (!event)
+ return -ENOMEM;
+
+ event->evt.id = WSM_GET32(buf);
+ event->evt.data = WSM_GET32(buf);
+
+ pr_debug("[WSM] Event: %d(%d)\n",
+ event->evt.id, event->evt.data);
+
+ spin_lock(&priv->event_queue_lock);
+ first = list_empty(&priv->event_queue);
+ list_add_tail(&event->link, &priv->event_queue);
+ spin_unlock(&priv->event_queue_lock);
+
+ if (first)
+ queue_work(priv->workqueue, &priv->event_handler);
+
+ return 0;
+
+underflow:
+ kfree(event);
+ return -EINVAL;
+}
+
+static int wsm_channel_switch_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ WARN_ON(WSM_GET32(buf));
+
+ priv->channel_switch_in_progress = 0;
+ wake_up(&priv->channel_switch_done);
+
+ wsm_unlock_tx(priv);
+
+ return 0;
+
+underflow:
+ return -EINVAL;
+}
+
+static int wsm_set_pm_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ /* TODO: Check buf (struct wsm_set_pm_complete) for validity */
+ if (priv->ps_mode_switch_in_progress) {
+ priv->ps_mode_switch_in_progress = 0;
+ wake_up(&priv->ps_mode_switch_done);
+ }
+ return 0;
+}
+
+static int wsm_scan_started(struct cw1200_common *priv, void *arg,
+ struct wsm_buf *buf)
+{
+ u32 status = WSM_GET32(buf);
+ if (status != WSM_STATUS_SUCCESS) {
+ cw1200_scan_failed_cb(priv);
+ return -EINVAL;
+ }
+ return 0;
+
+underflow:
+ WARN_ON(1);
+ return -EINVAL;
+}
+
+static int wsm_scan_complete_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ struct wsm_scan_complete arg;
+ arg.status = WSM_GET32(buf);
+ arg.psm = WSM_GET8(buf);
+ arg.num_channels = WSM_GET8(buf);
+ cw1200_scan_complete_cb(priv, &arg);
+
+ return 0;
+
+underflow:
+ return -EINVAL;
+}
+
+static int wsm_join_complete_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ struct wsm_join_complete arg;
+ arg.status = WSM_GET32(buf);
+ pr_debug("[WSM] Join complete indication, status: %d\n", arg.status);
+ cw1200_join_complete_cb(priv, &arg);
+
+ return 0;
+
+underflow:
+ return -EINVAL;
+}
+
+static int wsm_find_complete_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ pr_warn("Implement find_complete_indication\n");
+ return 0;
+}
+
+static int wsm_ba_timeout_indication(struct cw1200_common *priv,
+ struct wsm_buf *buf)
+{
+ u32 dummy;
+ u8 tid;
+ u8 dummy2;
+ u8 addr[ETH_ALEN];
+
+ dummy = WSM_GET32(buf);
+ tid = WSM_GET8(buf);
+ dummy2 = WSM_GET8(buf);
+ WSM_GET(buf, addr, ETH_ALEN);
+
+ pr_info("BlockACK timeout, tid %d, addr %pM\n",
+ tid, addr);
+
+ return 0;
+
+underflow:
+ return -EINVAL;
+}
+
+static int wsm_suspend_resume_indication(struct cw1200_common *priv,
+ int link_id, struct wsm_buf *buf)
+{
+ u32 flags;
+ struct wsm_suspend_resume arg;
+
+ flags = WSM_GET32(buf);
+ arg.link_id = link_id;
+ arg.stop = !(flags & 1);
+ arg.multicast = !!(flags & 8);
+ arg.queue = (flags >> 1) & 3;
+
+ cw1200_suspend_resume(priv, &arg);
+
+ return 0;
+
+underflow:
+ return -EINVAL;
+}
+
+
+/* ******************************************************************** */
+/* WSM TX */
+
+static int wsm_cmd_send(struct cw1200_common *priv,
+ struct wsm_buf *buf,
+ void *arg, u16 cmd, long tmo)
+{
+ size_t buf_len = buf->data - buf->begin;
+ int ret;
+
+ /* Don't bother if we're dead. */
+ if (priv->bh_error) {
+ ret = 0;
+ goto done;
+ }
+
+ /* Block until the cmd buffer is completed. Tortuous. */
+ spin_lock(&priv->wsm_cmd.lock);
+ while (!priv->wsm_cmd.done) {
+ spin_unlock(&priv->wsm_cmd.lock);
+ spin_lock(&priv->wsm_cmd.lock);
+ }
+ priv->wsm_cmd.done = 0;
+ spin_unlock(&priv->wsm_cmd.lock);
+
+ if (cmd == WSM_WRITE_MIB_REQ_ID ||
+ cmd == WSM_READ_MIB_REQ_ID)
+ pr_debug("[WSM] >>> 0x%.4X [MIB: 0x%.4X] (%zu)\n",
+ cmd, __le16_to_cpu(((__le16 *)buf->begin)[2]),
+ buf_len);
+ else
+ pr_debug("[WSM] >>> 0x%.4X (%zu)\n", cmd, buf_len);
+
+ /* Due to buggy SPI on CW1200, we need to
+ * pad the message by a few bytes to ensure
+ * that it's completely received.
+ */
+ buf_len += 4;
+
+ /* Fill HI message header */
+ /* BH will add sequence number */
+ ((__le16 *)buf->begin)[0] = __cpu_to_le16(buf_len);
+ ((__le16 *)buf->begin)[1] = __cpu_to_le16(cmd);
+
+ spin_lock(&priv->wsm_cmd.lock);
+ BUG_ON(priv->wsm_cmd.ptr);
+ priv->wsm_cmd.ptr = buf->begin;
+ priv->wsm_cmd.len = buf_len;
+ priv->wsm_cmd.arg = arg;
+ priv->wsm_cmd.cmd = cmd;
+ spin_unlock(&priv->wsm_cmd.lock);
+
+ cw1200_bh_wakeup(priv);
+
+ /* Wait for command completion */
+ ret = wait_event_timeout(priv->wsm_cmd_wq,
+ priv->wsm_cmd.done, tmo);
+
+ if (!ret && !priv->wsm_cmd.done) {
+ spin_lock(&priv->wsm_cmd.lock);
+ priv->wsm_cmd.done = 1;
+ priv->wsm_cmd.ptr = NULL;
+ spin_unlock(&priv->wsm_cmd.lock);
+ if (priv->bh_error) {
+ /* Return ok to help system cleanup */
+ ret = 0;
+ } else {
+ pr_err("CMD req (0x%04x) stuck in firmware, killing BH\n", priv->wsm_cmd.cmd);
+ print_hex_dump_bytes("REQDUMP: ", DUMP_PREFIX_NONE,
+ buf->begin, buf_len);
+ pr_err("Outstanding outgoing frames: %d\n", priv->hw_bufs_used);
+
+ /* Kill BH thread to report the error to the top layer. */
+ atomic_add(1, &priv->bh_term);
+ wake_up(&priv->bh_wq);
+ ret = -ETIMEDOUT;
+ }
+ } else {
+ spin_lock(&priv->wsm_cmd.lock);
+ BUG_ON(!priv->wsm_cmd.done);
+ ret = priv->wsm_cmd.ret;
+ spin_unlock(&priv->wsm_cmd.lock);
+ }
+done:
+ wsm_buf_reset(buf);
+ return ret;
+}
+
+/* ******************************************************************** */
+/* WSM TX port control */
+
+void wsm_lock_tx(struct cw1200_common *priv)
+{
+ wsm_cmd_lock(priv);
+ if (atomic_add_return(1, &priv->tx_lock) == 1) {
+ if (wsm_flush_tx(priv))
+ pr_debug("[WSM] TX is locked.\n");
+ }
+ wsm_cmd_unlock(priv);
+}
+
+void wsm_lock_tx_async(struct cw1200_common *priv)
+{
+ if (atomic_add_return(1, &priv->tx_lock) == 1)
+ pr_debug("[WSM] TX is locked (async).\n");
+}
+
+bool wsm_flush_tx(struct cw1200_common *priv)
+{
+ unsigned long timestamp = jiffies;
+ bool pending = false;
+ long timeout;
+ int i;
+
+ /* Flush must be called with TX lock held. */
+ BUG_ON(!atomic_read(&priv->tx_lock));
+
+ /* First check if we really need to do something.
+ * It is safe to use unprotected access, as hw_bufs_used
+ * can only decrements.
+ */
+ if (!priv->hw_bufs_used)
+ return true;
+
+ if (priv->bh_error) {
+ /* In case of failure do not wait for magic. */
+ pr_err("[WSM] Fatal error occurred, will not flush TX.\n");
+ return false;
+ } else {
+ /* Get a timestamp of "oldest" frame */
+ for (i = 0; i < 4; ++i)
+ pending |= cw1200_queue_get_xmit_timestamp(
+ &priv->tx_queue[i],
+ ×tamp, 0xffffffff);
+ /* If there's nothing pending, we're good */
+ if (!pending)
+ return true;
+
+ timeout = timestamp + WSM_CMD_LAST_CHANCE_TIMEOUT - jiffies;
+ if (timeout < 0 || wait_event_timeout(priv->bh_evt_wq,
+ !priv->hw_bufs_used,
+ timeout) <= 0) {
+ /* Hmmm... Not good. Frame had stuck in firmware. */
+ priv->bh_error = 1;
+ wiphy_err(priv->hw->wiphy, "[WSM] TX Frames (%d) stuck in firmware, killing BH\n", priv->hw_bufs_used);
+ wake_up(&priv->bh_wq);
+ return false;
+ }
+
+ /* Ok, everything is flushed. */
+ return true;
+ }
+}
+
+void wsm_unlock_tx(struct cw1200_common *priv)
+{
+ int tx_lock;
+ tx_lock = atomic_sub_return(1, &priv->tx_lock);
+ BUG_ON(tx_lock < 0);
+
+ if (tx_lock == 0) {
+ if (!priv->bh_error)
+ cw1200_bh_wakeup(priv);
+ pr_debug("[WSM] TX is unlocked.\n");
+ }
+}
+
+/* ******************************************************************** */
+/* WSM RX */
+
+int wsm_handle_exception(struct cw1200_common *priv, u8 *data, size_t len)
+{
+ struct wsm_buf buf;
+ u32 reason;
+ u32 reg[18];
+ char fname[48];
+ unsigned int i;
+
+ static const char * const reason_str[] = {
+ "undefined instruction",
+ "prefetch abort",
+ "data abort",
+ "unknown error",
+ };
+
+ buf.begin = buf.data = data;
+ buf.end = &buf.begin[len];
+
+ reason = WSM_GET32(&buf);
+ for (i = 0; i < ARRAY_SIZE(reg); ++i)
+ reg[i] = WSM_GET32(&buf);
+ WSM_GET(&buf, fname, sizeof(fname));
+
+ if (reason < 4)
+ wiphy_err(priv->hw->wiphy,
+ "Firmware exception: %s.\n",
+ reason_str[reason]);
+ else
+ wiphy_err(priv->hw->wiphy,
+ "Firmware assert at %.*s, line %d\n",
+ (int) sizeof(fname), fname, reg[1]);
+
+ for (i = 0; i < 12; i += 4)
+ wiphy_err(priv->hw->wiphy,
+ "R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X,\n",
+ i + 0, reg[i + 0], i + 1, reg[i + 1],
+ i + 2, reg[i + 2], i + 3, reg[i + 3]);
+ wiphy_err(priv->hw->wiphy,
+ "R12: 0x%.8X, SP: 0x%.8X, LR: 0x%.8X, PC: 0x%.8X,\n",
+ reg[i + 0], reg[i + 1], reg[i + 2], reg[i + 3]);
+ i += 4;
+ wiphy_err(priv->hw->wiphy,
+ "CPSR: 0x%.8X, SPSR: 0x%.8X\n",
+ reg[i + 0], reg[i + 1]);
+
+ print_hex_dump_bytes("R1: ", DUMP_PREFIX_NONE,
+ fname, sizeof(fname));
+ return 0;
+
+underflow:
+ wiphy_err(priv->hw->wiphy, "Firmware exception.\n");
+ print_hex_dump_bytes("Exception: ", DUMP_PREFIX_NONE,
+ data, len);
+ return -EINVAL;
+}
+
+int wsm_handle_rx(struct cw1200_common *priv, u16 id,
+ struct wsm_hdr *wsm, struct sk_buff **skb_p)
+{
+ int ret = 0;
+ struct wsm_buf wsm_buf;
+ int link_id = (id >> 6) & 0x0F;
+
+ /* Strip link id. */
+ id &= ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
+
+ wsm_buf.begin = (u8 *)&wsm[0];
+ wsm_buf.data = (u8 *)&wsm[1];
+ wsm_buf.end = &wsm_buf.begin[__le16_to_cpu(wsm->len)];
+
+ pr_debug("[WSM] <<< 0x%.4X (%td)\n", id,
+ wsm_buf.end - wsm_buf.begin);
+
+ if (id == WSM_TX_CONFIRM_IND_ID) {
+ ret = wsm_tx_confirm(priv, &wsm_buf, link_id);
+ } else if (id == WSM_MULTI_TX_CONFIRM_ID) {
+ ret = wsm_multi_tx_confirm(priv, &wsm_buf, link_id);
+ } else if (id & 0x0400) {
+ void *wsm_arg;
+ u16 wsm_cmd;
+
+ /* Do not trust FW too much. Protection against repeated
+ * response and race condition removal (see above).
+ */
+ spin_lock(&priv->wsm_cmd.lock);
+ wsm_arg = priv->wsm_cmd.arg;
+ wsm_cmd = priv->wsm_cmd.cmd &
+ ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
+ priv->wsm_cmd.cmd = 0xFFFF;
+ spin_unlock(&priv->wsm_cmd.lock);
+
+ if (WARN_ON((id & ~0x0400) != wsm_cmd)) {
+ /* Note that any non-zero is a fatal retcode. */
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* Note that wsm_arg can be NULL in case of timeout in
+ * wsm_cmd_send().
+ */
+
+ switch (id) {
+ case WSM_READ_MIB_RESP_ID:
+ if (wsm_arg)
+ ret = wsm_read_mib_confirm(priv, wsm_arg,
+ &wsm_buf);
+ break;
+ case WSM_WRITE_MIB_RESP_ID:
+ if (wsm_arg)
+ ret = wsm_write_mib_confirm(priv, wsm_arg,
+ &wsm_buf);
+ break;
+ case WSM_START_SCAN_RESP_ID:
+ if (wsm_arg)
+ ret = wsm_scan_started(priv, wsm_arg, &wsm_buf);
+ break;
+ case WSM_CONFIGURATION_RESP_ID:
+ if (wsm_arg)
+ ret = wsm_configuration_confirm(priv, wsm_arg,
+ &wsm_buf);
+ break;
+ case WSM_JOIN_RESP_ID:
+ if (wsm_arg)
+ ret = wsm_join_confirm(priv, wsm_arg, &wsm_buf);
+ break;
+ case WSM_STOP_SCAN_RESP_ID:
+ case WSM_RESET_RESP_ID:
+ case WSM_ADD_KEY_RESP_ID:
+ case WSM_REMOVE_KEY_RESP_ID:
+ case WSM_SET_PM_RESP_ID:
+ case WSM_SET_BSS_PARAMS_RESP_ID:
+ case 0x0412: /* set_tx_queue_params */
+ case WSM_EDCA_PARAMS_RESP_ID:
+ case WSM_SWITCH_CHANNEL_RESP_ID:
+ case WSM_START_RESP_ID:
+ case WSM_BEACON_TRANSMIT_RESP_ID:
+ case 0x0419: /* start_find */
+ case 0x041A: /* stop_find */
+ case 0x041B: /* update_ie */
+ case 0x041C: /* map_link */
+ WARN_ON(wsm_arg != NULL);
+ ret = wsm_generic_confirm(priv, wsm_arg, &wsm_buf);
+ if (ret) {
+ wiphy_warn(priv->hw->wiphy,
+ "wsm_generic_confirm failed for request 0x%04x.\n",
+ id & ~0x0400);
+
+ /* often 0x407 and 0x410 occur, this means we're dead.. */
+ if (priv->join_status >= CW1200_JOIN_STATUS_JOINING) {
+ wsm_lock_tx(priv);
+ if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+ }
+ }
+ break;
+ default:
+ wiphy_warn(priv->hw->wiphy,
+ "Unrecognized confirmation 0x%04x\n",
+ id & ~0x0400);
+ }
+
+ spin_lock(&priv->wsm_cmd.lock);
+ priv->wsm_cmd.ret = ret;
+ priv->wsm_cmd.done = 1;
+ spin_unlock(&priv->wsm_cmd.lock);
+
+ ret = 0; /* Error response from device should ne stop BH. */
+
+ wake_up(&priv->wsm_cmd_wq);
+ } else if (id & 0x0800) {
+ switch (id) {
+ case WSM_STARTUP_IND_ID:
+ ret = wsm_startup_indication(priv, &wsm_buf);
+ break;
+ case WSM_RECEIVE_IND_ID:
+ ret = wsm_receive_indication(priv, link_id,
+ &wsm_buf, skb_p);
+ break;
+ case 0x0805:
+ ret = wsm_event_indication(priv, &wsm_buf);
+ break;
+ case WSM_SCAN_COMPLETE_IND_ID:
+ ret = wsm_scan_complete_indication(priv, &wsm_buf);
+ break;
+ case 0x0808:
+ ret = wsm_ba_timeout_indication(priv, &wsm_buf);
+ break;
+ case 0x0809:
+ ret = wsm_set_pm_indication(priv, &wsm_buf);
+ break;
+ case 0x080A:
+ ret = wsm_channel_switch_indication(priv, &wsm_buf);
+ break;
+ case 0x080B:
+ ret = wsm_find_complete_indication(priv, &wsm_buf);
+ break;
+ case 0x080C:
+ ret = wsm_suspend_resume_indication(priv,
+ link_id, &wsm_buf);
+ break;
+ case 0x080F:
+ ret = wsm_join_complete_indication(priv, &wsm_buf);
+ break;
+ default:
+ pr_warn("Unrecognised WSM ID %04x\n", id);
+ }
+ } else {
+ WARN_ON(1);
+ ret = -EINVAL;
+ }
+out:
+ return ret;
+}
+
+static bool wsm_handle_tx_data(struct cw1200_common *priv,
+ struct wsm_tx *wsm,
+ const struct ieee80211_tx_info *tx_info,
+ const struct cw1200_txpriv *txpriv,
+ struct cw1200_queue *queue)
+{
+ bool handled = false;
+ const struct ieee80211_hdr *frame =
+ (struct ieee80211_hdr *)&((u8 *)wsm)[txpriv->offset];
+ __le16 fctl = frame->frame_control;
+ enum {
+ do_probe,
+ do_drop,
+ do_wep,
+ do_tx,
+ } action = do_tx;
+
+ switch (priv->mode) {
+ case NL80211_IFTYPE_STATION:
+ if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+ action = do_tx;
+ else if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA)
+ action = do_drop;
+ break;
+ case NL80211_IFTYPE_AP:
+ if (!priv->join_status) {
+ action = do_drop;
+ } else if (!(BIT(txpriv->raw_link_id) &
+ (BIT(0) | priv->link_id_map))) {
+ wiphy_warn(priv->hw->wiphy,
+ "A frame with expired link id is dropped.\n");
+ action = do_drop;
+ }
+ if (cw1200_queue_get_generation(wsm->packet_id) >
+ CW1200_MAX_REQUEUE_ATTEMPTS) {
+ /* HACK!!! WSM324 firmware has tendency to requeue
+ * multicast frames in a loop, causing performance
+ * drop and high power consumption of the driver.
+ * In this situation it is better just to drop
+ * the problematic frame.
+ */
+ wiphy_warn(priv->hw->wiphy,
+ "Too many attempts to requeue a frame; dropped.\n");
+ action = do_drop;
+ }
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ if (priv->join_status != CW1200_JOIN_STATUS_IBSS)
+ action = do_drop;
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ action = do_tx; /* TODO: Test me! */
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ default:
+ action = do_drop;
+ break;
+ }
+
+ if (action == do_tx) {
+ if (ieee80211_is_nullfunc(fctl)) {
+ spin_lock(&priv->bss_loss_lock);
+ if (priv->bss_loss_state) {
+ priv->bss_loss_confirm_id = wsm->packet_id;
+ wsm->queue_id = WSM_QUEUE_VOICE;
+ }
+ spin_unlock(&priv->bss_loss_lock);
+ } else if (ieee80211_is_probe_req(fctl)) {
+ action = do_probe;
+ } else if (ieee80211_is_deauth(fctl) &&
+ priv->mode != NL80211_IFTYPE_AP) {
+ pr_debug("[WSM] Issue unjoin command due to tx deauth.\n");
+ wsm_lock_tx_async(priv);
+ if (queue_work(priv->workqueue,
+ &priv->unjoin_work) <= 0)
+ wsm_unlock_tx(priv);
+ } else if (ieee80211_has_protected(fctl) &&
+ tx_info->control.hw_key &&
+ tx_info->control.hw_key->keyidx != priv->wep_default_key_id &&
+ (tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+ tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_WEP104)) {
+ action = do_wep;
+ }
+ }
+
+ switch (action) {
+ case do_probe:
+ /* An interesting FW "feature". Device filters probe responses.
+ * The easiest way to get it back is to convert
+ * probe request into WSM start_scan command.
+ */
+ pr_debug("[WSM] Convert probe request to scan.\n");
+ wsm_lock_tx_async(priv);
+ priv->pending_frame_id = wsm->packet_id;
+ if (queue_delayed_work(priv->workqueue,
+ &priv->scan.probe_work, 0) <= 0)
+ wsm_unlock_tx(priv);
+ handled = true;
+ break;
+ case do_drop:
+ pr_debug("[WSM] Drop frame (0x%.4X).\n", fctl);
+ BUG_ON(cw1200_queue_remove(queue, wsm->packet_id));
+ handled = true;
+ break;
+ case do_wep:
+ pr_debug("[WSM] Issue set_default_wep_key.\n");
+ wsm_lock_tx_async(priv);
+ priv->wep_default_key_id = tx_info->control.hw_key->keyidx;
+ priv->pending_frame_id = wsm->packet_id;
+ if (queue_work(priv->workqueue, &priv->wep_key_work) <= 0)
+ wsm_unlock_tx(priv);
+ handled = true;
+ break;
+ case do_tx:
+ pr_debug("[WSM] Transmit frame.\n");
+ break;
+ default:
+ /* Do nothing */
+ break;
+ }
+ return handled;
+}
+
+static int cw1200_get_prio_queue(struct cw1200_common *priv,
+ u32 link_id_map, int *total)
+{
+ static const int urgent = BIT(CW1200_LINK_ID_AFTER_DTIM) |
+ BIT(CW1200_LINK_ID_UAPSD);
+ struct wsm_edca_queue_params *edca;
+ unsigned score, best = -1;
+ int winner = -1;
+ int queued;
+ int i;
+
+ /* search for a winner using edca params */
+ for (i = 0; i < 4; ++i) {
+ queued = cw1200_queue_get_num_queued(&priv->tx_queue[i],
+ link_id_map);
+ if (!queued)
+ continue;
+ *total += queued;
+ edca = &priv->edca.params[i];
+ score = ((edca->aifns + edca->cwmin) << 16) +
+ ((edca->cwmax - edca->cwmin) *
+ (get_random_int() & 0xFFFF));
+ if (score < best && (winner < 0 || i != 3)) {
+ best = score;
+ winner = i;
+ }
+ }
+
+ /* override winner if bursting */
+ if (winner >= 0 && priv->tx_burst_idx >= 0 &&
+ winner != priv->tx_burst_idx &&
+ !cw1200_queue_get_num_queued(
+ &priv->tx_queue[winner],
+ link_id_map & urgent) &&
+ cw1200_queue_get_num_queued(
+ &priv->tx_queue[priv->tx_burst_idx],
+ link_id_map))
+ winner = priv->tx_burst_idx;
+
+ return winner;
+}
+
+static int wsm_get_tx_queue_and_mask(struct cw1200_common *priv,
+ struct cw1200_queue **queue_p,
+ u32 *tx_allowed_mask_p,
+ bool *more)
+{
+ int idx;
+ u32 tx_allowed_mask;
+ int total = 0;
+
+ /* Search for a queue with multicast frames buffered */
+ if (priv->tx_multicast) {
+ tx_allowed_mask = BIT(CW1200_LINK_ID_AFTER_DTIM);
+ idx = cw1200_get_prio_queue(priv,
+ tx_allowed_mask, &total);
+ if (idx >= 0) {
+ *more = total > 1;
+ goto found;
+ }
+ }
+
+ /* Search for unicast traffic */
+ tx_allowed_mask = ~priv->sta_asleep_mask;
+ tx_allowed_mask |= BIT(CW1200_LINK_ID_UAPSD);
+ if (priv->sta_asleep_mask) {
+ tx_allowed_mask |= priv->pspoll_mask;
+ tx_allowed_mask &= ~BIT(CW1200_LINK_ID_AFTER_DTIM);
+ } else {
+ tx_allowed_mask |= BIT(CW1200_LINK_ID_AFTER_DTIM);
+ }
+ idx = cw1200_get_prio_queue(priv,
+ tx_allowed_mask, &total);
+ if (idx < 0)
+ return -ENOENT;
+
+found:
+ *queue_p = &priv->tx_queue[idx];
+ *tx_allowed_mask_p = tx_allowed_mask;
+ return 0;
+}
+
+int wsm_get_tx(struct cw1200_common *priv, u8 **data,
+ size_t *tx_len, int *burst)
+{
+ struct wsm_tx *wsm = NULL;
+ struct ieee80211_tx_info *tx_info;
+ struct cw1200_queue *queue = NULL;
+ int queue_num;
+ u32 tx_allowed_mask = 0;
+ const struct cw1200_txpriv *txpriv = NULL;
+ int count = 0;
+
+ /* More is used only for broadcasts. */
+ bool more = false;
+
+ if (priv->wsm_cmd.ptr) { /* CMD request */
+ ++count;
+ spin_lock(&priv->wsm_cmd.lock);
+ BUG_ON(!priv->wsm_cmd.ptr);
+ *data = priv->wsm_cmd.ptr;
+ *tx_len = priv->wsm_cmd.len;
+ *burst = 1;
+ spin_unlock(&priv->wsm_cmd.lock);
+ } else {
+ for (;;) {
+ int ret;
+
+ if (atomic_add_return(0, &priv->tx_lock))
+ break;
+
+ spin_lock_bh(&priv->ps_state_lock);
+
+ ret = wsm_get_tx_queue_and_mask(priv, &queue,
+ &tx_allowed_mask, &more);
+ queue_num = queue - priv->tx_queue;
+
+ if (priv->buffered_multicasts &&
+ (ret || !more) &&
+ (priv->tx_multicast || !priv->sta_asleep_mask)) {
+ priv->buffered_multicasts = false;
+ if (priv->tx_multicast) {
+ priv->tx_multicast = false;
+ queue_work(priv->workqueue,
+ &priv->multicast_stop_work);
+ }
+ }
+
+ spin_unlock_bh(&priv->ps_state_lock);
+
+ if (ret)
+ break;
+
+ if (cw1200_queue_get(queue,
+ tx_allowed_mask,
+ &wsm, &tx_info, &txpriv))
+ continue;
+
+ if (wsm_handle_tx_data(priv, wsm,
+ tx_info, txpriv, queue))
+ continue; /* Handled by WSM */
+
+ wsm->hdr.id &= __cpu_to_le16(
+ ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX));
+ wsm->hdr.id |= cpu_to_le16(
+ WSM_TX_LINK_ID(txpriv->raw_link_id));
+ priv->pspoll_mask &= ~BIT(txpriv->raw_link_id);
+
+ *data = (u8 *)wsm;
+ *tx_len = __le16_to_cpu(wsm->hdr.len);
+
+ /* allow bursting if txop is set */
+ if (priv->edca.params[queue_num].txop_limit)
+ *burst = min(*burst,
+ (int)cw1200_queue_get_num_queued(queue, tx_allowed_mask) + 1);
+ else
+ *burst = 1;
+
+ /* store index of bursting queue */
+ if (*burst > 1)
+ priv->tx_burst_idx = queue_num;
+ else
+ priv->tx_burst_idx = -1;
+
+ if (more) {
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *)
+ &((u8 *)wsm)[txpriv->offset];
+ /* more buffered multicast/broadcast frames
+ * ==> set MoreData flag in IEEE 802.11 header
+ * to inform PS STAs
+ */
+ hdr->frame_control |=
+ cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ }
+
+ pr_debug("[WSM] >>> 0x%.4X (%zu) %p %c\n",
+ 0x0004, *tx_len, *data,
+ wsm->more ? 'M' : ' ');
+ ++count;
+ break;
+ }
+ }
+
+ return count;
+}
+
+void wsm_txed(struct cw1200_common *priv, u8 *data)
+{
+ if (data == priv->wsm_cmd.ptr) {
+ spin_lock(&priv->wsm_cmd.lock);
+ priv->wsm_cmd.ptr = NULL;
+ spin_unlock(&priv->wsm_cmd.lock);
+ }
+}
+
+/* ******************************************************************** */
+/* WSM buffer */
+
+void wsm_buf_init(struct wsm_buf *buf)
+{
+ BUG_ON(buf->begin);
+ buf->begin = kmalloc(FWLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
+ buf->end = buf->begin ? &buf->begin[FWLOAD_BLOCK_SIZE] : buf->begin;
+ wsm_buf_reset(buf);
+}
+
+void wsm_buf_deinit(struct wsm_buf *buf)
+{
+ kfree(buf->begin);
+ buf->begin = buf->data = buf->end = NULL;
+}
+
+static void wsm_buf_reset(struct wsm_buf *buf)
+{
+ if (buf->begin) {
+ buf->data = &buf->begin[4];
+ *(u32 *)buf->begin = 0;
+ } else {
+ buf->data = buf->begin;
+ }
+}
+
+static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size)
+{
+ size_t pos = buf->data - buf->begin;
+ size_t size = pos + extra_size;
+
+ size = round_up(size, FWLOAD_BLOCK_SIZE);
+
+ buf->begin = krealloc(buf->begin, size, GFP_KERNEL | GFP_DMA);
+ if (buf->begin) {
+ buf->data = &buf->begin[pos];
+ buf->end = &buf->begin[size];
+ return 0;
+ } else {
+ buf->end = buf->data = buf->begin;
+ return -ENOMEM;
+ }
+}
--- /dev/null
+/*
+ * WSM host interface (HI) interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on CW1200 UMAC WSM API, which is
+ * Copyright (C) ST-Ericsson SA 2010
+ * Author: Stewart Mathers <stewart.mathers@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_WSM_H_INCLUDED
+#define CW1200_WSM_H_INCLUDED
+
+#include <linux/spinlock.h>
+
+struct cw1200_common;
+
+/* Bands */
+/* Radio band 2.412 -2.484 GHz. */
+#define WSM_PHY_BAND_2_4G (0)
+
+/* Radio band 4.9375-5.8250 GHz. */
+#define WSM_PHY_BAND_5G (1)
+
+/* Transmit rates */
+/* 1 Mbps ERP-DSSS */
+#define WSM_TRANSMIT_RATE_1 (0)
+
+/* 2 Mbps ERP-DSSS */
+#define WSM_TRANSMIT_RATE_2 (1)
+
+/* 5.5 Mbps ERP-CCK */
+#define WSM_TRANSMIT_RATE_5 (2)
+
+/* 11 Mbps ERP-CCK */
+#define WSM_TRANSMIT_RATE_11 (3)
+
+/* 22 Mbps ERP-PBCC (Not supported) */
+/* #define WSM_TRANSMIT_RATE_22 (4) */
+
+/* 33 Mbps ERP-PBCC (Not supported) */
+/* #define WSM_TRANSMIT_RATE_33 (5) */
+
+/* 6 Mbps (3 Mbps) ERP-OFDM, BPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_6 (6)
+
+/* 9 Mbps (4.5 Mbps) ERP-OFDM, BPSK coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_9 (7)
+
+/* 12 Mbps (6 Mbps) ERP-OFDM, QPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_12 (8)
+
+/* 18 Mbps (9 Mbps) ERP-OFDM, QPSK coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_18 (9)
+
+/* 24 Mbps (12 Mbps) ERP-OFDM, 16QAM coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_24 (10)
+
+/* 36 Mbps (18 Mbps) ERP-OFDM, 16QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_36 (11)
+
+/* 48 Mbps (24 Mbps) ERP-OFDM, 64QAM coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_48 (12)
+
+/* 54 Mbps (27 Mbps) ERP-OFDM, 64QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_54 (13)
+
+/* 6.5 Mbps HT-OFDM, BPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_HT_6 (14)
+
+/* 13 Mbps HT-OFDM, QPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_HT_13 (15)
+
+/* 19.5 Mbps HT-OFDM, QPSK coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_HT_19 (16)
+
+/* 26 Mbps HT-OFDM, 16QAM coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_HT_26 (17)
+
+/* 39 Mbps HT-OFDM, 16QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_HT_39 (18)
+
+/* 52 Mbps HT-OFDM, 64QAM coding rate 2/3 */
+#define WSM_TRANSMIT_RATE_HT_52 (19)
+
+/* 58.5 Mbps HT-OFDM, 64QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_HT_58 (20)
+
+/* 65 Mbps HT-OFDM, 64QAM coding rate 5/6 */
+#define WSM_TRANSMIT_RATE_HT_65 (21)
+
+/* Scan types */
+/* Foreground scan */
+#define WSM_SCAN_TYPE_FOREGROUND (0)
+
+/* Background scan */
+#define WSM_SCAN_TYPE_BACKGROUND (1)
+
+/* Auto scan */
+#define WSM_SCAN_TYPE_AUTO (2)
+
+/* Scan flags */
+/* Forced background scan means if the station cannot */
+/* enter the power-save mode, it shall force to perform a */
+/* background scan. Only valid when ScanType is */
+/* background scan. */
+#define WSM_SCAN_FLAG_FORCE_BACKGROUND (BIT(0))
+
+/* The WLAN device scans one channel at a time so */
+/* that disturbance to the data traffic is minimized. */
+#define WSM_SCAN_FLAG_SPLIT_METHOD (BIT(1))
+
+/* Preamble Type. Long if not set. */
+#define WSM_SCAN_FLAG_SHORT_PREAMBLE (BIT(2))
+
+/* 11n Tx Mode. Mixed if not set. */
+#define WSM_SCAN_FLAG_11N_GREENFIELD (BIT(3))
+
+/* Scan constraints */
+/* Maximum number of channels to be scanned. */
+#define WSM_SCAN_MAX_NUM_OF_CHANNELS (48)
+
+/* The maximum number of SSIDs that the device can scan for. */
+#define WSM_SCAN_MAX_NUM_OF_SSIDS (2)
+
+/* Power management modes */
+/* 802.11 Active mode */
+#define WSM_PSM_ACTIVE (0)
+
+/* 802.11 PS mode */
+#define WSM_PSM_PS BIT(0)
+
+/* Fast Power Save bit */
+#define WSM_PSM_FAST_PS_FLAG BIT(7)
+
+/* Dynamic aka Fast power save */
+#define WSM_PSM_FAST_PS (BIT(0) | BIT(7))
+
+/* Undetermined */
+/* Note : Undetermined status is reported when the */
+/* NULL data frame used to advertise the PM mode to */
+/* the AP at Pre or Post Background Scan is not Acknowledged */
+#define WSM_PSM_UNKNOWN BIT(1)
+
+/* Queue IDs */
+/* best effort/legacy */
+#define WSM_QUEUE_BEST_EFFORT (0)
+
+/* background */
+#define WSM_QUEUE_BACKGROUND (1)
+
+/* video */
+#define WSM_QUEUE_VIDEO (2)
+
+/* voice */
+#define WSM_QUEUE_VOICE (3)
+
+/* HT TX parameters */
+/* Non-HT */
+#define WSM_HT_TX_NON_HT (0)
+
+/* Mixed format */
+#define WSM_HT_TX_MIXED (1)
+
+/* Greenfield format */
+#define WSM_HT_TX_GREENFIELD (2)
+
+/* STBC allowed */
+#define WSM_HT_TX_STBC (BIT(7))
+
+/* EPTA prioirty flags for BT Coex */
+/* default epta priority */
+#define WSM_EPTA_PRIORITY_DEFAULT 4
+/* use for normal data */
+#define WSM_EPTA_PRIORITY_DATA 4
+/* use for connect/disconnect/roaming*/
+#define WSM_EPTA_PRIORITY_MGT 5
+/* use for action frames */
+#define WSM_EPTA_PRIORITY_ACTION 5
+/* use for AC_VI data */
+#define WSM_EPTA_PRIORITY_VIDEO 5
+/* use for AC_VO data */
+#define WSM_EPTA_PRIORITY_VOICE 6
+/* use for EAPOL exchange */
+#define WSM_EPTA_PRIORITY_EAPOL 7
+
+/* TX status */
+/* Frame was sent aggregated */
+/* Only valid for WSM_SUCCESS status. */
+#define WSM_TX_STATUS_AGGREGATION (BIT(0))
+
+/* Host should requeue this frame later. */
+/* Valid only when status is WSM_REQUEUE. */
+#define WSM_TX_STATUS_REQUEUE (BIT(1))
+
+/* Normal Ack */
+#define WSM_TX_STATUS_NORMAL_ACK (0<<2)
+
+/* No Ack */
+#define WSM_TX_STATUS_NO_ACK (1<<2)
+
+/* No explicit acknowledgement */
+#define WSM_TX_STATUS_NO_EXPLICIT_ACK (2<<2)
+
+/* Block Ack */
+/* Only valid for WSM_SUCCESS status. */
+#define WSM_TX_STATUS_BLOCK_ACK (3<<2)
+
+/* RX status */
+/* Unencrypted */
+#define WSM_RX_STATUS_UNENCRYPTED (0<<0)
+
+/* WEP */
+#define WSM_RX_STATUS_WEP (1<<0)
+
+/* TKIP */
+#define WSM_RX_STATUS_TKIP (2<<0)
+
+/* AES */
+#define WSM_RX_STATUS_AES (3<<0)
+
+/* WAPI */
+#define WSM_RX_STATUS_WAPI (4<<0)
+
+/* Macro to fetch encryption subfield. */
+#define WSM_RX_STATUS_ENCRYPTION(status) ((status) & 0x07)
+
+/* Frame was part of an aggregation */
+#define WSM_RX_STATUS_AGGREGATE (BIT(3))
+
+/* Frame was first in the aggregation */
+#define WSM_RX_STATUS_AGGREGATE_FIRST (BIT(4))
+
+/* Frame was last in the aggregation */
+#define WSM_RX_STATUS_AGGREGATE_LAST (BIT(5))
+
+/* Indicates a defragmented frame */
+#define WSM_RX_STATUS_DEFRAGMENTED (BIT(6))
+
+/* Indicates a Beacon frame */
+#define WSM_RX_STATUS_BEACON (BIT(7))
+
+/* Indicates STA bit beacon TIM field */
+#define WSM_RX_STATUS_TIM (BIT(8))
+
+/* Indicates Beacon frame's virtual bitmap contains multicast bit */
+#define WSM_RX_STATUS_MULTICAST (BIT(9))
+
+/* Indicates frame contains a matching SSID */
+#define WSM_RX_STATUS_MATCHING_SSID (BIT(10))
+
+/* Indicates frame contains a matching BSSI */
+#define WSM_RX_STATUS_MATCHING_BSSI (BIT(11))
+
+/* Indicates More bit set in Framectl field */
+#define WSM_RX_STATUS_MORE_DATA (BIT(12))
+
+/* Indicates frame received during a measurement process */
+#define WSM_RX_STATUS_MEASUREMENT (BIT(13))
+
+/* Indicates frame received as an HT packet */
+#define WSM_RX_STATUS_HT (BIT(14))
+
+/* Indicates frame received with STBC */
+#define WSM_RX_STATUS_STBC (BIT(15))
+
+/* Indicates Address 1 field matches dot11StationId */
+#define WSM_RX_STATUS_ADDRESS1 (BIT(16))
+
+/* Indicates Group address present in the Address 1 field */
+#define WSM_RX_STATUS_GROUP (BIT(17))
+
+/* Indicates Broadcast address present in the Address 1 field */
+#define WSM_RX_STATUS_BROADCAST (BIT(18))
+
+/* Indicates group key used with encrypted frames */
+#define WSM_RX_STATUS_GROUP_KEY (BIT(19))
+
+/* Macro to fetch encryption key index. */
+#define WSM_RX_STATUS_KEY_IDX(status) (((status >> 20)) & 0x0F)
+
+/* Indicates TSF inclusion after 802.11 frame body */
+#define WSM_RX_STATUS_TSF_INCLUDED (BIT(24))
+
+/* Frame Control field starts at Frame offset + 2 */
+#define WSM_TX_2BYTES_SHIFT (BIT(7))
+
+/* Join mode */
+/* IBSS */
+#define WSM_JOIN_MODE_IBSS (0)
+
+/* BSS */
+#define WSM_JOIN_MODE_BSS (1)
+
+/* PLCP preamble type */
+/* For long preamble */
+#define WSM_JOIN_PREAMBLE_LONG (0)
+
+/* For short preamble (Long for 1Mbps) */
+#define WSM_JOIN_PREAMBLE_SHORT (1)
+
+/* For short preamble (Long for 1 and 2Mbps) */
+#define WSM_JOIN_PREAMBLE_SHORT_2 (2)
+
+/* Join flags */
+/* Unsynchronized */
+#define WSM_JOIN_FLAGS_UNSYNCRONIZED BIT(0)
+/* The BSS owner is a P2P GO */
+#define WSM_JOIN_FLAGS_P2P_GO BIT(1)
+/* Force to join BSS with the BSSID and the
+ * SSID specified without waiting for beacons. The
+ * ProbeForJoin parameter is ignored.
+ */
+#define WSM_JOIN_FLAGS_FORCE BIT(2)
+/* Give probe request/response higher
+ * priority over the BT traffic
+ */
+#define WSM_JOIN_FLAGS_PRIO BIT(3)
+/* Issue immediate join confirmation and use
+ * join complete to notify about completion
+ */
+#define WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND BIT(5)
+
+/* Key types */
+#define WSM_KEY_TYPE_WEP_DEFAULT (0)
+#define WSM_KEY_TYPE_WEP_PAIRWISE (1)
+#define WSM_KEY_TYPE_TKIP_GROUP (2)
+#define WSM_KEY_TYPE_TKIP_PAIRWISE (3)
+#define WSM_KEY_TYPE_AES_GROUP (4)
+#define WSM_KEY_TYPE_AES_PAIRWISE (5)
+#define WSM_KEY_TYPE_WAPI_GROUP (6)
+#define WSM_KEY_TYPE_WAPI_PAIRWISE (7)
+
+/* Key indexes */
+#define WSM_KEY_MAX_INDEX (10)
+
+/* ACK policy */
+#define WSM_ACK_POLICY_NORMAL (0)
+#define WSM_ACK_POLICY_NO_ACK (1)
+
+/* Start modes */
+#define WSM_START_MODE_AP (0) /* Mini AP */
+#define WSM_START_MODE_P2P_GO (1) /* P2P GO */
+#define WSM_START_MODE_P2P_DEV (2) /* P2P device */
+
+/* SetAssociationMode MIB flags */
+#define WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE (BIT(0))
+#define WSM_ASSOCIATION_MODE_USE_HT_MODE (BIT(1))
+#define WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET (BIT(2))
+#define WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING (BIT(3))
+#define WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES (BIT(4))
+
+/* RcpiRssiThreshold MIB flags */
+#define WSM_RCPI_RSSI_THRESHOLD_ENABLE (BIT(0))
+#define WSM_RCPI_RSSI_USE_RSSI (BIT(1))
+#define WSM_RCPI_RSSI_DONT_USE_UPPER (BIT(2))
+#define WSM_RCPI_RSSI_DONT_USE_LOWER (BIT(3))
+
+/* Update-ie constants */
+#define WSM_UPDATE_IE_BEACON (BIT(0))
+#define WSM_UPDATE_IE_PROBE_RESP (BIT(1))
+#define WSM_UPDATE_IE_PROBE_REQ (BIT(2))
+
+/* WSM events */
+/* Error */
+#define WSM_EVENT_ERROR (0)
+
+/* BSS lost */
+#define WSM_EVENT_BSS_LOST (1)
+
+/* BSS regained */
+#define WSM_EVENT_BSS_REGAINED (2)
+
+/* Radar detected */
+#define WSM_EVENT_RADAR_DETECTED (3)
+
+/* RCPI or RSSI threshold triggered */
+#define WSM_EVENT_RCPI_RSSI (4)
+
+/* BT inactive */
+#define WSM_EVENT_BT_INACTIVE (5)
+
+/* BT active */
+#define WSM_EVENT_BT_ACTIVE (6)
+
+/* MIB IDs */
+/* 4.1 dot11StationId */
+#define WSM_MIB_ID_DOT11_STATION_ID 0x0000
+
+/* 4.2 dot11MaxtransmitMsduLifeTime */
+#define WSM_MIB_ID_DOT11_MAX_TRANSMIT_LIFTIME 0x0001
+
+/* 4.3 dot11MaxReceiveLifeTime */
+#define WSM_MIB_ID_DOT11_MAX_RECEIVE_LIFETIME 0x0002
+
+/* 4.4 dot11SlotTime */
+#define WSM_MIB_ID_DOT11_SLOT_TIME 0x0003
+
+/* 4.5 dot11GroupAddressesTable */
+#define WSM_MIB_ID_DOT11_GROUP_ADDRESSES_TABLE 0x0004
+#define WSM_MAX_GRP_ADDRTABLE_ENTRIES 8
+
+/* 4.6 dot11WepDefaultKeyId */
+#define WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID 0x0005
+
+/* 4.7 dot11CurrentTxPowerLevel */
+#define WSM_MIB_ID_DOT11_CURRENT_TX_POWER_LEVEL 0x0006
+
+/* 4.8 dot11RTSThreshold */
+#define WSM_MIB_ID_DOT11_RTS_THRESHOLD 0x0007
+
+/* 4.9 NonErpProtection */
+#define WSM_MIB_ID_NON_ERP_PROTECTION 0x1000
+
+/* 4.10 ArpIpAddressesTable */
+#define WSM_MIB_ID_ARP_IP_ADDRESSES_TABLE 0x1001
+#define WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES 1
+
+/* 4.11 TemplateFrame */
+#define WSM_MIB_ID_TEMPLATE_FRAME 0x1002
+
+/* 4.12 RxFilter */
+#define WSM_MIB_ID_RX_FILTER 0x1003
+
+/* 4.13 BeaconFilterTable */
+#define WSM_MIB_ID_BEACON_FILTER_TABLE 0x1004
+
+/* 4.14 BeaconFilterEnable */
+#define WSM_MIB_ID_BEACON_FILTER_ENABLE 0x1005
+
+/* 4.15 OperationalPowerMode */
+#define WSM_MIB_ID_OPERATIONAL_POWER_MODE 0x1006
+
+/* 4.16 BeaconWakeUpPeriod */
+#define WSM_MIB_ID_BEACON_WAKEUP_PERIOD 0x1007
+
+/* 4.17 RcpiRssiThreshold */
+#define WSM_MIB_ID_RCPI_RSSI_THRESHOLD 0x1009
+
+/* 4.18 StatisticsTable */
+#define WSM_MIB_ID_STATISTICS_TABLE 0x100A
+
+/* 4.19 IbssPsConfig */
+#define WSM_MIB_ID_IBSS_PS_CONFIG 0x100B
+
+/* 4.20 CountersTable */
+#define WSM_MIB_ID_COUNTERS_TABLE 0x100C
+
+/* 4.21 BlockAckPolicy */
+#define WSM_MIB_ID_BLOCK_ACK_POLICY 0x100E
+
+/* 4.22 OverrideInternalTxRate */
+#define WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE 0x100F
+
+/* 4.23 SetAssociationMode */
+#define WSM_MIB_ID_SET_ASSOCIATION_MODE 0x1010
+
+/* 4.24 UpdateEptaConfigData */
+#define WSM_MIB_ID_UPDATE_EPTA_CONFIG_DATA 0x1011
+
+/* 4.25 SelectCcaMethod */
+#define WSM_MIB_ID_SELECT_CCA_METHOD 0x1012
+
+/* 4.26 SetUpasdInformation */
+#define WSM_MIB_ID_SET_UAPSD_INFORMATION 0x1013
+
+/* 4.27 SetAutoCalibrationMode WBF00004073 */
+#define WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE 0x1015
+
+/* 4.28 SetTxRateRetryPolicy */
+#define WSM_MIB_ID_SET_TX_RATE_RETRY_POLICY 0x1016
+
+/* 4.29 SetHostMessageTypeFilter */
+#define WSM_MIB_ID_SET_HOST_MSG_TYPE_FILTER 0x1017
+
+/* 4.30 P2PFindInfo */
+#define WSM_MIB_ID_P2P_FIND_INFO 0x1018
+
+/* 4.31 P2PPsModeInfo */
+#define WSM_MIB_ID_P2P_PS_MODE_INFO 0x1019
+
+/* 4.32 SetEtherTypeDataFrameFilter */
+#define WSM_MIB_ID_SET_ETHERTYPE_DATAFRAME_FILTER 0x101A
+
+/* 4.33 SetUDPPortDataFrameFilter */
+#define WSM_MIB_ID_SET_UDPPORT_DATAFRAME_FILTER 0x101B
+
+/* 4.34 SetMagicDataFrameFilter */
+#define WSM_MIB_ID_SET_MAGIC_DATAFRAME_FILTER 0x101C
+
+/* 4.35 P2PDeviceInfo */
+#define WSM_MIB_ID_P2P_DEVICE_INFO 0x101D
+
+/* 4.36 SetWCDMABand */
+#define WSM_MIB_ID_SET_WCDMA_BAND 0x101E
+
+/* 4.37 GroupTxSequenceCounter */
+#define WSM_MIB_ID_GRP_SEQ_COUNTER 0x101F
+
+/* 4.38 ProtectedMgmtPolicy */
+#define WSM_MIB_ID_PROTECTED_MGMT_POLICY 0x1020
+
+/* 4.39 SetHtProtection */
+#define WSM_MIB_ID_SET_HT_PROTECTION 0x1021
+
+/* 4.40 GPIO Command */
+#define WSM_MIB_ID_GPIO_COMMAND 0x1022
+
+/* 4.41 TSF Counter Value */
+#define WSM_MIB_ID_TSF_COUNTER 0x1023
+
+/* Test Purposes Only */
+#define WSM_MIB_ID_BLOCK_ACK_INFO 0x100D
+
+/* 4.42 UseMultiTxConfMessage */
+#define WSM_MIB_USE_MULTI_TX_CONF 0x1024
+
+/* 4.43 Keep-alive period */
+#define WSM_MIB_ID_KEEP_ALIVE_PERIOD 0x1025
+
+/* 4.44 Disable BSSID filter */
+#define WSM_MIB_ID_DISABLE_BSSID_FILTER 0x1026
+
+/* Frame template types */
+#define WSM_FRAME_TYPE_PROBE_REQUEST (0)
+#define WSM_FRAME_TYPE_BEACON (1)
+#define WSM_FRAME_TYPE_NULL (2)
+#define WSM_FRAME_TYPE_QOS_NULL (3)
+#define WSM_FRAME_TYPE_PS_POLL (4)
+#define WSM_FRAME_TYPE_PROBE_RESPONSE (5)
+
+#define WSM_FRAME_GREENFIELD (0x80) /* See 4.11 */
+
+/* Status */
+/* The WSM firmware has completed a request */
+/* successfully. */
+#define WSM_STATUS_SUCCESS (0)
+
+/* This is a generic failure code if other error codes do */
+/* not apply. */
+#define WSM_STATUS_FAILURE (1)
+
+/* A request contains one or more invalid parameters. */
+#define WSM_INVALID_PARAMETER (2)
+
+/* The request cannot perform because the device is in */
+/* an inappropriate mode. */
+#define WSM_ACCESS_DENIED (3)
+
+/* The frame received includes a decryption error. */
+#define WSM_STATUS_DECRYPTFAILURE (4)
+
+/* A MIC failure is detected in the received packets. */
+#define WSM_STATUS_MICFAILURE (5)
+
+/* The transmit request failed due to retry limit being */
+/* exceeded. */
+#define WSM_STATUS_RETRY_EXCEEDED (6)
+
+/* The transmit request failed due to MSDU life time */
+/* being exceeded. */
+#define WSM_STATUS_TX_LIFETIME_EXCEEDED (7)
+
+/* The link to the AP is lost. */
+#define WSM_STATUS_LINK_LOST (8)
+
+/* No key was found for the encrypted frame */
+#define WSM_STATUS_NO_KEY_FOUND (9)
+
+/* Jammer was detected when transmitting this frame */
+#define WSM_STATUS_JAMMER_DETECTED (10)
+
+/* The message should be requeued later. */
+/* This is applicable only to Transmit */
+#define WSM_REQUEUE (11)
+
+/* Advanced filtering options */
+#define WSM_MAX_FILTER_ELEMENTS (4)
+
+#define WSM_FILTER_ACTION_IGNORE (0)
+#define WSM_FILTER_ACTION_FILTER_IN (1)
+#define WSM_FILTER_ACTION_FILTER_OUT (2)
+
+#define WSM_FILTER_PORT_TYPE_DST (0)
+#define WSM_FILTER_PORT_TYPE_SRC (1)
+
+/* Actual header of WSM messages */
+struct wsm_hdr {
+ __le16 len;
+ __le16 id;
+};
+
+#define WSM_TX_SEQ_MAX (7)
+#define WSM_TX_SEQ(seq) \
+ ((seq & WSM_TX_SEQ_MAX) << 13)
+#define WSM_TX_LINK_ID_MAX (0x0F)
+#define WSM_TX_LINK_ID(link_id) \
+ ((link_id & WSM_TX_LINK_ID_MAX) << 6)
+
+#define MAX_BEACON_SKIP_TIME_MS 1000
+
+#define WSM_CMD_LAST_CHANCE_TIMEOUT (HZ * 3 / 2)
+
+/* ******************************************************************** */
+/* WSM capability */
+
+#define WSM_STARTUP_IND_ID 0x0801
+
+struct wsm_startup_ind {
+ u16 input_buffers;
+ u16 input_buffer_size;
+ u16 status;
+ u16 hw_id;
+ u16 hw_subid;
+ u16 fw_cap;
+ u16 fw_type;
+ u16 fw_api;
+ u16 fw_build;
+ u16 fw_ver;
+ char fw_label[128];
+ u32 config[4];
+};
+
+/* ******************************************************************** */
+/* WSM commands */
+
+/* 3.1 */
+#define WSM_CONFIGURATION_REQ_ID 0x0009
+#define WSM_CONFIGURATION_RESP_ID 0x0409
+
+struct wsm_tx_power_range {
+ int min_power_level;
+ int max_power_level;
+ u32 stepping;
+};
+
+struct wsm_configuration {
+ /* [in] */ u32 dot11MaxTransmitMsduLifeTime;
+ /* [in] */ u32 dot11MaxReceiveLifeTime;
+ /* [in] */ u32 dot11RtsThreshold;
+ /* [in, out] */ u8 *dot11StationId;
+ /* [in] */ const void *dpdData;
+ /* [in] */ size_t dpdData_size;
+ /* [out] */ u8 dot11FrequencyBandsSupported;
+ /* [out] */ u32 supportedRateMask;
+ /* [out] */ struct wsm_tx_power_range txPowerRange[2];
+};
+
+int wsm_configuration(struct cw1200_common *priv,
+ struct wsm_configuration *arg);
+
+/* 3.3 */
+#define WSM_RESET_REQ_ID 0x000A
+#define WSM_RESET_RESP_ID 0x040A
+struct wsm_reset {
+ /* [in] */ int link_id;
+ /* [in] */ bool reset_statistics;
+};
+
+int wsm_reset(struct cw1200_common *priv, const struct wsm_reset *arg);
+
+/* 3.5 */
+#define WSM_READ_MIB_REQ_ID 0x0005
+#define WSM_READ_MIB_RESP_ID 0x0405
+int wsm_read_mib(struct cw1200_common *priv, u16 mib_id, void *buf,
+ size_t buf_size);
+
+/* 3.7 */
+#define WSM_WRITE_MIB_REQ_ID 0x0006
+#define WSM_WRITE_MIB_RESP_ID 0x0406
+int wsm_write_mib(struct cw1200_common *priv, u16 mib_id, void *buf,
+ size_t buf_size);
+
+/* 3.9 */
+#define WSM_START_SCAN_REQ_ID 0x0007
+#define WSM_START_SCAN_RESP_ID 0x0407
+
+struct wsm_ssid {
+ u8 ssid[32];
+ u32 length;
+};
+
+struct wsm_scan_ch {
+ u16 number;
+ u32 min_chan_time;
+ u32 max_chan_time;
+ u32 tx_power_level;
+};
+
+struct wsm_scan {
+ /* WSM_PHY_BAND_... */
+ u8 band;
+
+ /* WSM_SCAN_TYPE_... */
+ u8 type;
+
+ /* WSM_SCAN_FLAG_... */
+ u8 flags;
+
+ /* WSM_TRANSMIT_RATE_... */
+ u8 max_tx_rate;
+
+ /* Interval period in TUs that the device shall the re- */
+ /* execute the requested scan. Max value supported by the device */
+ /* is 256s. */
+ u32 auto_scan_interval;
+
+ /* Number of probe requests (per SSID) sent to one (1) */
+ /* channel. Zero (0) means that none is send, which */
+ /* means that a passive scan is to be done. Value */
+ /* greater than zero (0) means that an active scan is to */
+ /* be done. */
+ u32 num_probes;
+
+ /* Number of channels to be scanned. */
+ /* Maximum value is WSM_SCAN_MAX_NUM_OF_CHANNELS. */
+ u8 num_channels;
+
+ /* Number of SSID provided in the scan command (this */
+ /* is zero (0) in broadcast scan) */
+ /* The maximum number of SSIDs is WSM_SCAN_MAX_NUM_OF_SSIDS. */
+ u8 num_ssids;
+
+ /* The delay time (in microseconds) period */
+ /* before sending a probe-request. */
+ u8 probe_delay;
+
+ /* SSIDs to be scanned [numOfSSIDs]; */
+ struct wsm_ssid *ssids;
+
+ /* Channels to be scanned [numOfChannels]; */
+ struct wsm_scan_ch *ch;
+};
+
+int wsm_scan(struct cw1200_common *priv, const struct wsm_scan *arg);
+
+/* 3.11 */
+#define WSM_STOP_SCAN_REQ_ID 0x0008
+#define WSM_STOP_SCAN_RESP_ID 0x0408
+int wsm_stop_scan(struct cw1200_common *priv);
+
+/* 3.13 */
+#define WSM_SCAN_COMPLETE_IND_ID 0x0806
+struct wsm_scan_complete {
+ /* WSM_STATUS_... */
+ u32 status;
+
+ /* WSM_PSM_... */
+ u8 psm;
+
+ /* Number of channels that the scan operation completed. */
+ u8 num_channels;
+};
+
+/* 3.14 */
+#define WSM_TX_CONFIRM_IND_ID 0x0404
+#define WSM_MULTI_TX_CONFIRM_ID 0x041E
+
+struct wsm_tx_confirm {
+ /* Packet identifier used in wsm_tx. */
+ u32 packet_id;
+
+ /* WSM_STATUS_... */
+ u32 status;
+
+ /* WSM_TRANSMIT_RATE_... */
+ u8 tx_rate;
+
+ /* The number of times the frame was transmitted */
+ /* without receiving an acknowledgement. */
+ u8 ack_failures;
+
+ /* WSM_TX_STATUS_... */
+ u16 flags;
+
+ /* The total time in microseconds that the frame spent in */
+ /* the WLAN device before transmission as completed. */
+ u32 media_delay;
+
+ /* The total time in microseconds that the frame spent in */
+ /* the WLAN device before transmission was started. */
+ u32 tx_queue_delay;
+};
+
+/* 3.15 */
+typedef void (*wsm_tx_confirm_cb) (struct cw1200_common *priv,
+ struct wsm_tx_confirm *arg);
+
+/* Note that ideology of wsm_tx struct is different against the rest of
+ * WSM API. wsm_hdr is /not/ a caller-adapted struct to be used as an input
+ * argument for WSM call, but a prepared bytestream to be sent to firmware.
+ * It is filled partly in cw1200_tx, partly in low-level WSM code.
+ * Please pay attention once again: ideology is different.
+ *
+ * Legend:
+ * - [in]: cw1200_tx must fill this field.
+ * - [wsm]: the field is filled by low-level WSM.
+ */
+struct wsm_tx {
+ /* common WSM header */
+ struct wsm_hdr hdr;
+
+ /* Packet identifier that meant to be used in completion. */
+ u32 packet_id; /* Note this is actually a cookie */
+
+ /* WSM_TRANSMIT_RATE_... */
+ u8 max_tx_rate;
+
+ /* WSM_QUEUE_... */
+ u8 queue_id;
+
+ /* True: another packet is pending on the host for transmission. */
+ u8 more;
+
+ /* Bit 0 = 0 - Start expiry time from first Tx attempt (default) */
+ /* Bit 0 = 1 - Start expiry time from receipt of Tx Request */
+ /* Bits 3:1 - PTA Priority */
+ /* Bits 6:4 - Tx Rate Retry Policy */
+ /* Bit 7 - Reserved */
+ u8 flags;
+
+ /* Should be 0. */
+ u32 reserved;
+
+ /* The elapsed time in TUs, after the initial transmission */
+ /* of an MSDU, after which further attempts to transmit */
+ /* the MSDU shall be terminated. Overrides the global */
+ /* dot11MaxTransmitMsduLifeTime setting [optional] */
+ /* Device will set the default value if this is 0. */
+ __le32 expire_time;
+
+ /* WSM_HT_TX_... */
+ __le32 ht_tx_parameters;
+} __packed;
+
+/* = sizeof(generic hi hdr) + sizeof(wsm hdr) + sizeof(alignment) */
+#define WSM_TX_EXTRA_HEADROOM (28)
+
+/* 3.16 */
+#define WSM_RECEIVE_IND_ID 0x0804
+
+struct wsm_rx {
+ /* WSM_STATUS_... */
+ u32 status;
+
+ /* Specifies the channel of the received packet. */
+ u16 channel_number;
+
+ /* WSM_TRANSMIT_RATE_... */
+ u8 rx_rate;
+
+ /* This value is expressed in signed Q8.0 format for */
+ /* RSSI and unsigned Q7.1 format for RCPI. */
+ u8 rcpi_rssi;
+
+ /* WSM_RX_STATUS_... */
+ u32 flags;
+};
+
+/* = sizeof(generic hi hdr) + sizeof(wsm hdr) */
+#define WSM_RX_EXTRA_HEADROOM (16)
+
+typedef void (*wsm_rx_cb) (struct cw1200_common *priv, struct wsm_rx *arg,
+ struct sk_buff **skb_p);
+
+/* 3.17 */
+struct wsm_event {
+ /* WSM_STATUS_... */
+ /* [out] */ u32 id;
+
+ /* Indication parameters. */
+ /* For error indication, this shall be a 32-bit WSM status. */
+ /* For RCPI or RSSI indication, this should be an 8-bit */
+ /* RCPI or RSSI value. */
+ /* [out] */ u32 data;
+};
+
+struct cw1200_wsm_event {
+ struct list_head link;
+ struct wsm_event evt;
+};
+
+/* 3.18 - 3.22 */
+/* Measurement. Skipped for now. Irrelevent. */
+
+typedef void (*wsm_event_cb) (struct cw1200_common *priv,
+ struct wsm_event *arg);
+
+/* 3.23 */
+#define WSM_JOIN_REQ_ID 0x000B
+#define WSM_JOIN_RESP_ID 0x040B
+
+struct wsm_join {
+ /* WSM_JOIN_MODE_... */
+ u8 mode;
+
+ /* WSM_PHY_BAND_... */
+ u8 band;
+
+ /* Specifies the channel number to join. The channel */
+ /* number will be mapped to an actual frequency */
+ /* according to the band */
+ u16 channel_number;
+
+ /* Specifies the BSSID of the BSS or IBSS to be joined */
+ /* or the IBSS to be started. */
+ u8 bssid[6];
+
+ /* ATIM window of IBSS */
+ /* When ATIM window is zero the initiated IBSS does */
+ /* not support power saving. */
+ u16 atim_window;
+
+ /* WSM_JOIN_PREAMBLE_... */
+ u8 preamble_type;
+
+ /* Specifies if a probe request should be send with the */
+ /* specified SSID when joining to the network. */
+ u8 probe_for_join;
+
+ /* DTIM Period (In multiples of beacon interval) */
+ u8 dtim_period;
+
+ /* WSM_JOIN_FLAGS_... */
+ u8 flags;
+
+ /* Length of the SSID */
+ u32 ssid_len;
+
+ /* Specifies the SSID of the IBSS to join or start */
+ u8 ssid[32];
+
+ /* Specifies the time between TBTTs in TUs */
+ u32 beacon_interval;
+
+ /* A bit mask that defines the BSS basic rate set. */
+ u32 basic_rate_set;
+};
+
+struct wsm_join_cnf {
+ u32 status;
+
+ /* Minimum transmission power level in units of 0.1dBm */
+ u32 min_power_level;
+
+ /* Maximum transmission power level in units of 0.1dBm */
+ u32 max_power_level;
+};
+
+int wsm_join(struct cw1200_common *priv, struct wsm_join *arg);
+
+/* 3.24 */
+struct wsm_join_complete {
+ /* WSM_STATUS_... */
+ u32 status;
+};
+
+/* 3.25 */
+#define WSM_SET_PM_REQ_ID 0x0010
+#define WSM_SET_PM_RESP_ID 0x0410
+struct wsm_set_pm {
+ /* WSM_PSM_... */
+ u8 mode;
+
+ /* in unit of 500us; 0 to use default */
+ u8 fast_psm_idle_period;
+
+ /* in unit of 500us; 0 to use default */
+ u8 ap_psm_change_period;
+
+ /* in unit of 500us; 0 to disable auto-pspoll */
+ u8 min_auto_pspoll_period;
+};
+
+int wsm_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
+
+/* 3.27 */
+struct wsm_set_pm_complete {
+ u8 psm; /* WSM_PSM_... */
+};
+
+/* 3.28 */
+#define WSM_SET_BSS_PARAMS_REQ_ID 0x0011
+#define WSM_SET_BSS_PARAMS_RESP_ID 0x0411
+struct wsm_set_bss_params {
+ /* This resets the beacon loss counters only */
+ u8 reset_beacon_loss;
+
+ /* The number of lost consecutive beacons after which */
+ /* the WLAN device should indicate the BSS-Lost event */
+ /* to the WLAN host driver. */
+ u8 beacon_lost_count;
+
+ /* The AID received during the association process. */
+ u16 aid;
+
+ /* The operational rate set mask */
+ u32 operational_rate_set;
+};
+
+int wsm_set_bss_params(struct cw1200_common *priv,
+ const struct wsm_set_bss_params *arg);
+
+/* 3.30 */
+#define WSM_ADD_KEY_REQ_ID 0x000C
+#define WSM_ADD_KEY_RESP_ID 0x040C
+struct wsm_add_key {
+ u8 type; /* WSM_KEY_TYPE_... */
+ u8 index; /* Key entry index: 0 -- WSM_KEY_MAX_INDEX */
+ u16 reserved;
+ union {
+ struct {
+ u8 peer[6]; /* MAC address of the peer station */
+ u8 reserved;
+ u8 keylen; /* Key length in bytes */
+ u8 keydata[16]; /* Key data */
+ } __packed wep_pairwise;
+ struct {
+ u8 keyid; /* Unique per key identifier (0..3) */
+ u8 keylen; /* Key length in bytes */
+ u16 reserved;
+ u8 keydata[16]; /* Key data */
+ } __packed wep_group;
+ struct {
+ u8 peer[6]; /* MAC address of the peer station */
+ u16 reserved;
+ u8 keydata[16]; /* TKIP key data */
+ u8 rx_mic_key[8]; /* Rx MIC key */
+ u8 tx_mic_key[8]; /* Tx MIC key */
+ } __packed tkip_pairwise;
+ struct {
+ u8 keydata[16]; /* TKIP key data */
+ u8 rx_mic_key[8]; /* Rx MIC key */
+ u8 keyid; /* Key ID */
+ u8 reserved[3];
+ u8 rx_seqnum[8]; /* Receive Sequence Counter */
+ } __packed tkip_group;
+ struct {
+ u8 peer[6]; /* MAC address of the peer station */
+ u16 reserved;
+ u8 keydata[16]; /* AES key data */
+ } __packed aes_pairwise;
+ struct {
+ u8 keydata[16]; /* AES key data */
+ u8 keyid; /* Key ID */
+ u8 reserved[3];
+ u8 rx_seqnum[8]; /* Receive Sequence Counter */
+ } __packed aes_group;
+ struct {
+ u8 peer[6]; /* MAC address of the peer station */
+ u8 keyid; /* Key ID */
+ u8 reserved;
+ u8 keydata[16]; /* WAPI key data */
+ u8 mic_key[16]; /* MIC key data */
+ } __packed wapi_pairwise;
+ struct {
+ u8 keydata[16]; /* WAPI key data */
+ u8 mic_key[16]; /* MIC key data */
+ u8 keyid; /* Key ID */
+ u8 reserved[3];
+ } __packed wapi_group;
+ } __packed;
+} __packed;
+
+int wsm_add_key(struct cw1200_common *priv, const struct wsm_add_key *arg);
+
+/* 3.32 */
+#define WSM_REMOVE_KEY_REQ_ID 0x000D
+#define WSM_REMOVE_KEY_RESP_ID 0x040D
+struct wsm_remove_key {
+ u8 index; /* Key entry index : 0-10 */
+};
+
+int wsm_remove_key(struct cw1200_common *priv,
+ const struct wsm_remove_key *arg);
+
+/* 3.34 */
+struct wsm_set_tx_queue_params {
+ /* WSM_ACK_POLICY_... */
+ u8 ackPolicy;
+
+ /* Medium Time of TSPEC (in 32us units) allowed per */
+ /* One Second Averaging Period for this queue. */
+ u16 allowedMediumTime;
+
+ /* dot11MaxTransmitMsduLifetime to be used for the */
+ /* specified queue. */
+ u32 maxTransmitLifetime;
+};
+
+struct wsm_tx_queue_params {
+ /* NOTE: index is a linux queue id. */
+ struct wsm_set_tx_queue_params params[4];
+};
+
+
+#define WSM_TX_QUEUE_SET(queue_params, queue, ack_policy, allowed_time,\
+ max_life_time) \
+do { \
+ struct wsm_set_tx_queue_params *p = &(queue_params)->params[queue]; \
+ p->ackPolicy = (ack_policy); \
+ p->allowedMediumTime = (allowed_time); \
+ p->maxTransmitLifetime = (max_life_time); \
+} while (0)
+
+int wsm_set_tx_queue_params(struct cw1200_common *priv,
+ const struct wsm_set_tx_queue_params *arg, u8 id);
+
+/* 3.36 */
+#define WSM_EDCA_PARAMS_REQ_ID 0x0013
+#define WSM_EDCA_PARAMS_RESP_ID 0x0413
+struct wsm_edca_queue_params {
+ /* CWmin (in slots) for the access class. */
+ u16 cwmin;
+
+ /* CWmax (in slots) for the access class. */
+ u16 cwmax;
+
+ /* AIFS (in slots) for the access class. */
+ u16 aifns;
+
+ /* TX OP Limit (in microseconds) for the access class. */
+ u16 txop_limit;
+
+ /* dot11MaxReceiveLifetime to be used for the specified */
+ /* the access class. Overrides the global */
+ /* dot11MaxReceiveLifetime value */
+ u32 max_rx_lifetime;
+};
+
+struct wsm_edca_params {
+ /* NOTE: index is a linux queue id. */
+ struct wsm_edca_queue_params params[4];
+ bool uapsd_enable[4];
+};
+
+#define TXOP_UNIT 32
+#define WSM_EDCA_SET(__edca, __queue, __aifs, __cw_min, __cw_max, __txop, __lifetime,\
+ __uapsd) \
+ do { \
+ struct wsm_edca_queue_params *p = &(__edca)->params[__queue]; \
+ p->cwmin = __cw_min; \
+ p->cwmax = __cw_max; \
+ p->aifns = __aifs; \
+ p->txop_limit = ((__txop) * TXOP_UNIT); \
+ p->max_rx_lifetime = __lifetime; \
+ (__edca)->uapsd_enable[__queue] = (__uapsd); \
+ } while (0)
+
+int wsm_set_edca_params(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg);
+
+int wsm_set_uapsd_param(struct cw1200_common *priv,
+ const struct wsm_edca_params *arg);
+
+/* 3.38 */
+/* Set-System info. Skipped for now. Irrelevent. */
+
+/* 3.40 */
+#define WSM_SWITCH_CHANNEL_REQ_ID 0x0016
+#define WSM_SWITCH_CHANNEL_RESP_ID 0x0416
+
+struct wsm_switch_channel {
+ /* 1 - means the STA shall not transmit any further */
+ /* frames until the channel switch has completed */
+ u8 mode;
+
+ /* Number of TBTTs until channel switch occurs. */
+ /* 0 - indicates switch shall occur at any time */
+ /* 1 - occurs immediately before the next TBTT */
+ u8 switch_count;
+
+ /* The new channel number to switch to. */
+ /* Note this is defined as per section 2.7. */
+ u16 channel_number;
+};
+
+int wsm_switch_channel(struct cw1200_common *priv,
+ const struct wsm_switch_channel *arg);
+
+typedef void (*wsm_channel_switch_cb) (struct cw1200_common *priv);
+
+#define WSM_START_REQ_ID 0x0017
+#define WSM_START_RESP_ID 0x0417
+
+struct wsm_start {
+ /* WSM_START_MODE_... */
+ /* [in] */ u8 mode;
+
+ /* WSM_PHY_BAND_... */
+ /* [in] */ u8 band;
+
+ /* Channel number */
+ /* [in] */ u16 channel_number;
+
+ /* Client Traffic window in units of TU */
+ /* Valid only when mode == ..._P2P */
+ /* [in] */ u32 ct_window;
+
+ /* Interval between two consecutive */
+ /* beacon transmissions in TU. */
+ /* [in] */ u32 beacon_interval;
+
+ /* DTIM period in terms of beacon intervals */
+ /* [in] */ u8 dtim_period;
+
+ /* WSM_JOIN_PREAMBLE_... */
+ /* [in] */ u8 preamble;
+
+ /* The delay time (in microseconds) period */
+ /* before sending a probe-request. */
+ /* [in] */ u8 probe_delay;
+
+ /* Length of the SSID */
+ /* [in] */ u8 ssid_len;
+
+ /* SSID of the BSS or P2P_GO to be started now. */
+ /* [in] */ u8 ssid[32];
+
+ /* The basic supported rates for the MiniAP. */
+ /* [in] */ u32 basic_rate_set;
+};
+
+int wsm_start(struct cw1200_common *priv, const struct wsm_start *arg);
+
+#define WSM_BEACON_TRANSMIT_REQ_ID 0x0018
+#define WSM_BEACON_TRANSMIT_RESP_ID 0x0418
+
+struct wsm_beacon_transmit {
+ /* 1: enable; 0: disable */
+ /* [in] */ u8 enable_beaconing;
+};
+
+int wsm_beacon_transmit(struct cw1200_common *priv,
+ const struct wsm_beacon_transmit *arg);
+
+int wsm_start_find(struct cw1200_common *priv);
+
+int wsm_stop_find(struct cw1200_common *priv);
+
+typedef void (*wsm_find_complete_cb) (struct cw1200_common *priv, u32 status);
+
+struct wsm_suspend_resume {
+ /* See 3.52 */
+ /* Link ID */
+ /* [out] */ int link_id;
+ /* Stop sending further Tx requests down to device for this link */
+ /* [out] */ bool stop;
+ /* Transmit multicast Frames */
+ /* [out] */ bool multicast;
+ /* The AC on which Tx to be suspended /resumed. */
+ /* This is applicable only for U-APSD */
+ /* WSM_QUEUE_... */
+ /* [out] */ int queue;
+};
+
+typedef void (*wsm_suspend_resume_cb) (struct cw1200_common *priv,
+ struct wsm_suspend_resume *arg);
+
+/* 3.54 Update-IE request. */
+struct wsm_update_ie {
+ /* WSM_UPDATE_IE_... */
+ /* [in] */ u16 what;
+ /* [in] */ u16 count;
+ /* [in] */ u8 *ies;
+ /* [in] */ size_t length;
+};
+
+int wsm_update_ie(struct cw1200_common *priv,
+ const struct wsm_update_ie *arg);
+
+/* 3.56 */
+struct wsm_map_link {
+ /* MAC address of the remote device */
+ /* [in] */ u8 mac_addr[6];
+ /* [in] */ u8 link_id;
+};
+
+int wsm_map_link(struct cw1200_common *priv, const struct wsm_map_link *arg);
+
+/* ******************************************************************** */
+/* MIB shortcats */
+
+static inline int wsm_set_output_power(struct cw1200_common *priv,
+ int power_level)
+{
+ __le32 val = __cpu_to_le32(power_level);
+ return wsm_write_mib(priv, WSM_MIB_ID_DOT11_CURRENT_TX_POWER_LEVEL,
+ &val, sizeof(val));
+}
+
+static inline int wsm_set_beacon_wakeup_period(struct cw1200_common *priv,
+ unsigned dtim_interval,
+ unsigned listen_interval)
+{
+ struct {
+ u8 numBeaconPeriods;
+ u8 reserved;
+ __le16 listenInterval;
+ } val = {
+ dtim_interval, 0, __cpu_to_le16(listen_interval)
+ };
+
+ if (dtim_interval > 0xFF || listen_interval > 0xFFFF)
+ return -EINVAL;
+ else
+ return wsm_write_mib(priv, WSM_MIB_ID_BEACON_WAKEUP_PERIOD,
+ &val, sizeof(val));
+}
+
+struct wsm_rcpi_rssi_threshold {
+ u8 rssiRcpiMode; /* WSM_RCPI_RSSI_... */
+ u8 lowerThreshold;
+ u8 upperThreshold;
+ u8 rollingAverageCount;
+};
+
+static inline int wsm_set_rcpi_rssi_threshold(struct cw1200_common *priv,
+ struct wsm_rcpi_rssi_threshold *arg)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_RCPI_RSSI_THRESHOLD, arg,
+ sizeof(*arg));
+}
+
+struct wsm_mib_counters_table {
+ __le32 plcp_errors;
+ __le32 fcs_errors;
+ __le32 tx_packets;
+ __le32 rx_packets;
+ __le32 rx_packet_errors;
+ __le32 rx_decryption_failures;
+ __le32 rx_mic_failures;
+ __le32 rx_no_key_failures;
+ __le32 tx_multicast_frames;
+ __le32 tx_frames_success;
+ __le32 tx_frame_failures;
+ __le32 tx_frames_retried;
+ __le32 tx_frames_multi_retried;
+ __le32 rx_frame_duplicates;
+ __le32 rts_success;
+ __le32 rts_failures;
+ __le32 ack_failures;
+ __le32 rx_multicast_frames;
+ __le32 rx_frames_success;
+ __le32 rx_cmac_icv_errors;
+ __le32 rx_cmac_replays;
+ __le32 rx_mgmt_ccmp_replays;
+} __packed;
+
+static inline int wsm_get_counters_table(struct cw1200_common *priv,
+ struct wsm_mib_counters_table *arg)
+{
+ return wsm_read_mib(priv, WSM_MIB_ID_COUNTERS_TABLE,
+ arg, sizeof(*arg));
+}
+
+static inline int wsm_get_station_id(struct cw1200_common *priv, u8 *mac)
+{
+ return wsm_read_mib(priv, WSM_MIB_ID_DOT11_STATION_ID, mac, ETH_ALEN);
+}
+
+struct wsm_rx_filter {
+ bool promiscuous;
+ bool bssid;
+ bool fcs;
+ bool probeResponder;
+};
+
+static inline int wsm_set_rx_filter(struct cw1200_common *priv,
+ const struct wsm_rx_filter *arg)
+{
+ __le32 val = 0;
+ if (arg->promiscuous)
+ val |= __cpu_to_le32(BIT(0));
+ if (arg->bssid)
+ val |= __cpu_to_le32(BIT(1));
+ if (arg->fcs)
+ val |= __cpu_to_le32(BIT(2));
+ if (arg->probeResponder)
+ val |= __cpu_to_le32(BIT(3));
+ return wsm_write_mib(priv, WSM_MIB_ID_RX_FILTER, &val, sizeof(val));
+}
+
+int wsm_set_probe_responder(struct cw1200_common *priv, bool enable);
+
+#define WSM_BEACON_FILTER_IE_HAS_CHANGED BIT(0)
+#define WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT BIT(1)
+#define WSM_BEACON_FILTER_IE_HAS_APPEARED BIT(2)
+
+struct wsm_beacon_filter_table_entry {
+ u8 ie_id;
+ u8 flags;
+ u8 oui[3];
+ u8 match_data[3];
+} __packed;
+
+struct wsm_mib_beacon_filter_table {
+ __le32 num;
+ struct wsm_beacon_filter_table_entry entry[10];
+} __packed;
+
+static inline int wsm_set_beacon_filter_table(struct cw1200_common *priv,
+ struct wsm_mib_beacon_filter_table *ft)
+{
+ size_t size = __le32_to_cpu(ft->num) *
+ sizeof(struct wsm_beacon_filter_table_entry) +
+ sizeof(__le32);
+
+ return wsm_write_mib(priv, WSM_MIB_ID_BEACON_FILTER_TABLE, ft, size);
+}
+
+#define WSM_BEACON_FILTER_ENABLE BIT(0) /* Enable/disable beacon filtering */
+#define WSM_BEACON_FILTER_AUTO_ERP BIT(1) /* If 1 FW will handle ERP IE changes internally */
+
+struct wsm_beacon_filter_control {
+ int enabled;
+ int bcn_count;
+};
+
+static inline int wsm_beacon_filter_control(struct cw1200_common *priv,
+ struct wsm_beacon_filter_control *arg)
+{
+ struct {
+ __le32 enabled;
+ __le32 bcn_count;
+ } val;
+ val.enabled = __cpu_to_le32(arg->enabled);
+ val.bcn_count = __cpu_to_le32(arg->bcn_count);
+ return wsm_write_mib(priv, WSM_MIB_ID_BEACON_FILTER_ENABLE, &val,
+ sizeof(val));
+}
+
+enum wsm_power_mode {
+ wsm_power_mode_active = 0,
+ wsm_power_mode_doze = 1,
+ wsm_power_mode_quiescent = 2,
+};
+
+struct wsm_operational_mode {
+ enum wsm_power_mode power_mode;
+ int disable_more_flag_usage;
+ int perform_ant_diversity;
+};
+
+static inline int wsm_set_operational_mode(struct cw1200_common *priv,
+ const struct wsm_operational_mode *arg)
+{
+ u8 val = arg->power_mode;
+ if (arg->disable_more_flag_usage)
+ val |= BIT(4);
+ if (arg->perform_ant_diversity)
+ val |= BIT(5);
+ return wsm_write_mib(priv, WSM_MIB_ID_OPERATIONAL_POWER_MODE, &val,
+ sizeof(val));
+}
+
+struct wsm_template_frame {
+ u8 frame_type;
+ u8 rate;
+ struct sk_buff *skb;
+};
+
+static inline int wsm_set_template_frame(struct cw1200_common *priv,
+ struct wsm_template_frame *arg)
+{
+ int ret;
+ u8 *p = skb_push(arg->skb, 4);
+ p[0] = arg->frame_type;
+ p[1] = arg->rate;
+ ((__le16 *)p)[1] = __cpu_to_le16(arg->skb->len - 4);
+ ret = wsm_write_mib(priv, WSM_MIB_ID_TEMPLATE_FRAME, p, arg->skb->len);
+ skb_pull(arg->skb, 4);
+ return ret;
+}
+
+
+struct wsm_protected_mgmt_policy {
+ bool protectedMgmtEnable;
+ bool unprotectedMgmtFramesAllowed;
+ bool encryptionForAuthFrame;
+};
+
+static inline int wsm_set_protected_mgmt_policy(struct cw1200_common *priv,
+ struct wsm_protected_mgmt_policy *arg)
+{
+ __le32 val = 0;
+ int ret;
+ if (arg->protectedMgmtEnable)
+ val |= __cpu_to_le32(BIT(0));
+ if (arg->unprotectedMgmtFramesAllowed)
+ val |= __cpu_to_le32(BIT(1));
+ if (arg->encryptionForAuthFrame)
+ val |= __cpu_to_le32(BIT(2));
+ ret = wsm_write_mib(priv, WSM_MIB_ID_PROTECTED_MGMT_POLICY,
+ &val, sizeof(val));
+ return ret;
+}
+
+struct wsm_mib_block_ack_policy {
+ u8 tx_tid;
+ u8 reserved1;
+ u8 rx_tid;
+ u8 reserved2;
+} __packed;
+
+static inline int wsm_set_block_ack_policy(struct cw1200_common *priv,
+ u8 tx_tid_policy,
+ u8 rx_tid_policy)
+{
+ struct wsm_mib_block_ack_policy val = {
+ .tx_tid = tx_tid_policy,
+ .rx_tid = rx_tid_policy,
+ };
+ return wsm_write_mib(priv, WSM_MIB_ID_BLOCK_ACK_POLICY, &val,
+ sizeof(val));
+}
+
+struct wsm_mib_association_mode {
+ u8 flags; /* WSM_ASSOCIATION_MODE_... */
+ u8 preamble; /* WSM_JOIN_PREAMBLE_... */
+ u8 greenfield; /* 1 for greenfield */
+ u8 mpdu_start_spacing;
+ __le32 basic_rate_set;
+} __packed;
+
+static inline int wsm_set_association_mode(struct cw1200_common *priv,
+ struct wsm_mib_association_mode *arg)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_SET_ASSOCIATION_MODE, arg,
+ sizeof(*arg));
+}
+
+#define WSM_TX_RATE_POLICY_FLAG_TERMINATE_WHEN_FINISHED BIT(2)
+#define WSM_TX_RATE_POLICY_FLAG_COUNT_INITIAL_TRANSMIT BIT(3)
+struct wsm_tx_rate_retry_policy {
+ u8 index;
+ u8 short_retries;
+ u8 long_retries;
+ /* BIT(2) - Terminate retries when Tx rate retry policy
+ * finishes.
+ * BIT(3) - Count initial frame transmission as part of
+ * rate retry counting but not as a retry
+ * attempt
+ */
+ u8 flags;
+ u8 rate_recoveries;
+ u8 reserved[3];
+ __le32 rate_count_indices[3];
+} __packed;
+
+struct wsm_set_tx_rate_retry_policy {
+ u8 num;
+ u8 reserved[3];
+ struct wsm_tx_rate_retry_policy tbl[8];
+} __packed;
+
+static inline int wsm_set_tx_rate_retry_policy(struct cw1200_common *priv,
+ struct wsm_set_tx_rate_retry_policy *arg)
+{
+ size_t size = 4 + arg->num * sizeof(struct wsm_tx_rate_retry_policy);
+ return wsm_write_mib(priv, WSM_MIB_ID_SET_TX_RATE_RETRY_POLICY, arg,
+ size);
+}
+
+/* 4.32 SetEtherTypeDataFrameFilter */
+struct wsm_ether_type_filter_hdr {
+ u8 num; /* Up to WSM_MAX_FILTER_ELEMENTS */
+ u8 reserved[3];
+} __packed;
+
+struct wsm_ether_type_filter {
+ u8 action; /* WSM_FILTER_ACTION_XXX */
+ u8 reserved;
+ __le16 type; /* Type of ethernet frame */
+} __packed;
+
+static inline int wsm_set_ether_type_filter(struct cw1200_common *priv,
+ struct wsm_ether_type_filter_hdr *arg)
+{
+ size_t size = sizeof(struct wsm_ether_type_filter_hdr) +
+ arg->num * sizeof(struct wsm_ether_type_filter);
+ return wsm_write_mib(priv, WSM_MIB_ID_SET_ETHERTYPE_DATAFRAME_FILTER,
+ arg, size);
+}
+
+/* 4.33 SetUDPPortDataFrameFilter */
+struct wsm_udp_port_filter_hdr {
+ u8 num; /* Up to WSM_MAX_FILTER_ELEMENTS */
+ u8 reserved[3];
+} __packed;
+
+struct wsm_udp_port_filter {
+ u8 action; /* WSM_FILTER_ACTION_XXX */
+ u8 type; /* WSM_FILTER_PORT_TYPE_XXX */
+ __le16 port; /* Port number */
+} __packed;
+
+static inline int wsm_set_udp_port_filter(struct cw1200_common *priv,
+ struct wsm_udp_port_filter_hdr *arg)
+{
+ size_t size = sizeof(struct wsm_udp_port_filter_hdr) +
+ arg->num * sizeof(struct wsm_udp_port_filter);
+ return wsm_write_mib(priv, WSM_MIB_ID_SET_UDPPORT_DATAFRAME_FILTER,
+ arg, size);
+}
+
+/* Undocumented MIBs: */
+/* 4.35 P2PDeviceInfo */
+#define D11_MAX_SSID_LEN (32)
+
+struct wsm_p2p_device_type {
+ __le16 category_id;
+ u8 oui[4];
+ __le16 subcategory_id;
+} __packed;
+
+struct wsm_p2p_device_info {
+ struct wsm_p2p_device_type primaryDevice;
+ u8 reserved1[3];
+ u8 devname_size;
+ u8 local_devname[D11_MAX_SSID_LEN];
+ u8 reserved2[3];
+ u8 num_secdev_supported;
+ struct wsm_p2p_device_type secdevs[0];
+} __packed;
+
+/* 4.36 SetWCDMABand - WO */
+struct wsm_cdma_band {
+ u8 wcdma_band;
+ u8 reserved[3];
+} __packed;
+
+/* 4.37 GroupTxSequenceCounter - RO */
+struct wsm_group_tx_seq {
+ __le32 bits_47_16;
+ __le16 bits_15_00;
+ __le16 reserved;
+} __packed;
+
+/* 4.39 SetHtProtection - WO */
+#define WSM_DUAL_CTS_PROT_ENB (1 << 0)
+#define WSM_NON_GREENFIELD_STA_PRESENT (1 << 1)
+#define WSM_HT_PROT_MODE__NO_PROT (0 << 2)
+#define WSM_HT_PROT_MODE__NON_MEMBER (1 << 2)
+#define WSM_HT_PROT_MODE__20_MHZ (2 << 2)
+#define WSM_HT_PROT_MODE__NON_HT_MIXED (3 << 2)
+#define WSM_LSIG_TXOP_PROT_FULL (1 << 4)
+#define WSM_LARGE_L_LENGTH_PROT (1 << 5)
+
+struct wsm_ht_protection {
+ __le32 flags;
+} __packed;
+
+/* 4.40 GPIO Command - R/W */
+#define WSM_GPIO_COMMAND_SETUP 0
+#define WSM_GPIO_COMMAND_READ 1
+#define WSM_GPIO_COMMAND_WRITE 2
+#define WSM_GPIO_COMMAND_RESET 3
+#define WSM_GPIO_ALL_PINS 0xFF
+
+struct wsm_gpio_command {
+ u8 command;
+ u8 pin;
+ __le16 config;
+} __packed;
+
+/* 4.41 TSFCounter - RO */
+struct wsm_tsf_counter {
+ __le64 tsf_counter;
+} __packed;
+
+/* 4.43 Keep alive period */
+struct wsm_keep_alive_period {
+ __le16 period;
+ u8 reserved[2];
+} __packed;
+
+static inline int wsm_keep_alive_period(struct cw1200_common *priv,
+ int period)
+{
+ struct wsm_keep_alive_period arg = {
+ .period = __cpu_to_le16(period),
+ };
+ return wsm_write_mib(priv, WSM_MIB_ID_KEEP_ALIVE_PERIOD,
+ &arg, sizeof(arg));
+};
+
+/* BSSID filtering */
+struct wsm_set_bssid_filtering {
+ u8 filter;
+ u8 reserved[3];
+} __packed;
+
+static inline int wsm_set_bssid_filtering(struct cw1200_common *priv,
+ bool enabled)
+{
+ struct wsm_set_bssid_filtering arg = {
+ .filter = !enabled,
+ };
+ return wsm_write_mib(priv, WSM_MIB_ID_DISABLE_BSSID_FILTER,
+ &arg, sizeof(arg));
+}
+
+/* Multicast filtering - 4.5 */
+struct wsm_mib_multicast_filter {
+ __le32 enable;
+ __le32 num_addrs;
+ u8 macaddrs[WSM_MAX_GRP_ADDRTABLE_ENTRIES][ETH_ALEN];
+} __packed;
+
+static inline int wsm_set_multicast_filter(struct cw1200_common *priv,
+ struct wsm_mib_multicast_filter *fp)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_DOT11_GROUP_ADDRESSES_TABLE,
+ fp, sizeof(*fp));
+}
+
+/* ARP IPv4 filtering - 4.10 */
+struct wsm_mib_arp_ipv4_filter {
+ __le32 enable;
+ __be32 ipv4addrs[WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES];
+} __packed;
+
+static inline int wsm_set_arp_ipv4_filter(struct cw1200_common *priv,
+ struct wsm_mib_arp_ipv4_filter *fp)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_ARP_IP_ADDRESSES_TABLE,
+ fp, sizeof(*fp));
+}
+
+/* P2P Power Save Mode Info - 4.31 */
+struct wsm_p2p_ps_modeinfo {
+ u8 opp_ps_ct_window;
+ u8 count;
+ u8 reserved;
+ u8 dtim_count;
+ __le32 duration;
+ __le32 interval;
+ __le32 start_time;
+} __packed;
+
+static inline int wsm_set_p2p_ps_modeinfo(struct cw1200_common *priv,
+ struct wsm_p2p_ps_modeinfo *mi)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_P2P_PS_MODE_INFO,
+ mi, sizeof(*mi));
+}
+
+static inline int wsm_get_p2p_ps_modeinfo(struct cw1200_common *priv,
+ struct wsm_p2p_ps_modeinfo *mi)
+{
+ return wsm_read_mib(priv, WSM_MIB_ID_P2P_PS_MODE_INFO,
+ mi, sizeof(*mi));
+}
+
+/* UseMultiTxConfMessage */
+
+static inline int wsm_use_multi_tx_conf(struct cw1200_common *priv,
+ bool enabled)
+{
+ __le32 arg = enabled ? __cpu_to_le32(1) : 0;
+
+ return wsm_write_mib(priv, WSM_MIB_USE_MULTI_TX_CONF,
+ &arg, sizeof(arg));
+}
+
+
+/* 4.26 SetUpasdInformation */
+struct wsm_uapsd_info {
+ __le16 uapsd_flags;
+ __le16 min_auto_trigger_interval;
+ __le16 max_auto_trigger_interval;
+ __le16 auto_trigger_step;
+};
+
+static inline int wsm_set_uapsd_info(struct cw1200_common *priv,
+ struct wsm_uapsd_info *arg)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_SET_UAPSD_INFORMATION,
+ arg, sizeof(*arg));
+}
+
+/* 4.22 OverrideInternalTxRate */
+struct wsm_override_internal_txrate {
+ u8 internalTxRate;
+ u8 nonErpInternalTxRate;
+ u8 reserved[2];
+} __packed;
+
+static inline int wsm_set_override_internal_txrate(struct cw1200_common *priv,
+ struct wsm_override_internal_txrate *arg)
+{
+ return wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE,
+ arg, sizeof(*arg));
+}
+
+/* ******************************************************************** */
+/* WSM TX port control */
+
+void wsm_lock_tx(struct cw1200_common *priv);
+void wsm_lock_tx_async(struct cw1200_common *priv);
+bool wsm_flush_tx(struct cw1200_common *priv);
+void wsm_unlock_tx(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* WSM / BH API */
+
+int wsm_handle_exception(struct cw1200_common *priv, u8 *data, size_t len);
+int wsm_handle_rx(struct cw1200_common *priv, u16 id, struct wsm_hdr *wsm,
+ struct sk_buff **skb_p);
+
+/* ******************************************************************** */
+/* wsm_buf API */
+
+struct wsm_buf {
+ u8 *begin;
+ u8 *data;
+ u8 *end;
+};
+
+void wsm_buf_init(struct wsm_buf *buf);
+void wsm_buf_deinit(struct wsm_buf *buf);
+
+/* ******************************************************************** */
+/* wsm_cmd API */
+
+struct wsm_cmd {
+ spinlock_t lock; /* Protect structure from multiple access */
+ int done;
+ u8 *ptr;
+ size_t len;
+ void *arg;
+ int ret;
+ u16 cmd;
+};
+
+/* ******************************************************************** */
+/* WSM TX buffer access */
+
+int wsm_get_tx(struct cw1200_common *priv, u8 **data,
+ size_t *tx_len, int *burst);
+void wsm_txed(struct cw1200_common *priv, u8 *data);
+
+/* ******************************************************************** */
+/* Queue mapping: WSM <---> linux */
+/* Linux: VO VI BE BK */
+/* WSM: BE BK VI VO */
+
+static inline u8 wsm_queue_id_to_linux(u8 queue_id)
+{
+ static const u8 queue_mapping[] = {
+ 2, 3, 1, 0
+ };
+ return queue_mapping[queue_id];
+}
+
+static inline u8 wsm_queue_id_to_wsm(u8 queue_id)
+{
+ static const u8 queue_mapping[] = {
+ 3, 2, 0, 1
+ };
+ return queue_mapping[queue_id];
+}
+
+#endif /* CW1200_HWIO_H_INCLUDED */
projects / cascardo / linux.git / commitdiff