+++ /dev/null
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/export.h>
-
-#include "iwl-drv.h"
-#include "iwl-phy-db.h"
-#include "iwl-debug.h"
-#include "iwl-op-mode.h"
-#include "iwl-trans.h"
-
-#define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */
-#define IWL_NUM_PAPD_CH_GROUPS 9
-#define IWL_NUM_TXP_CH_GROUPS 9
-
-struct iwl_phy_db_entry {
- u16 size;
- u8 *data;
-};
-
-/**
- * struct iwl_phy_db - stores phy configuration and calibration data.
- *
- * @cfg: phy configuration.
- * @calib_nch: non channel specific calibration data.
- * @calib_ch: channel specific calibration data.
- * @calib_ch_group_papd: calibration data related to papd channel group.
- * @calib_ch_group_txp: calibration data related to tx power chanel group.
- */
-struct iwl_phy_db {
- struct iwl_phy_db_entry cfg;
- struct iwl_phy_db_entry calib_nch;
- struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
- struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
-
- struct iwl_trans *trans;
-};
-
-enum iwl_phy_db_section_type {
- IWL_PHY_DB_CFG = 1,
- IWL_PHY_DB_CALIB_NCH,
- IWL_PHY_DB_UNUSED,
- IWL_PHY_DB_CALIB_CHG_PAPD,
- IWL_PHY_DB_CALIB_CHG_TXP,
- IWL_PHY_DB_MAX
-};
-
-#define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */
-
-/*
- * phy db - configure operational ucode
- */
-struct iwl_phy_db_cmd {
- __le16 type;
- __le16 length;
- u8 data[];
-} __packed;
-
-/* for parsing of tx power channel group data that comes from the firmware*/
-struct iwl_phy_db_chg_txp {
- __le32 space;
- __le16 max_channel_idx;
-} __packed;
-
-/*
- * phy db - Receive phy db chunk after calibrations
- */
-struct iwl_calib_res_notif_phy_db {
- __le16 type;
- __le16 length;
- u8 data[];
-} __packed;
-
-struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans)
-{
- struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db),
- GFP_KERNEL);
-
- if (!phy_db)
- return phy_db;
-
- phy_db->trans = trans;
-
- /* TODO: add default values of the phy db. */
- return phy_db;
-}
-IWL_EXPORT_SYMBOL(iwl_phy_db_init);
-
-/*
- * get phy db section: returns a pointer to a phy db section specified by
- * type and channel group id.
- */
-static struct iwl_phy_db_entry *
-iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type,
- u16 chg_id)
-{
- if (!phy_db || type >= IWL_PHY_DB_MAX)
- return NULL;
-
- switch (type) {
- case IWL_PHY_DB_CFG:
- return &phy_db->cfg;
- case IWL_PHY_DB_CALIB_NCH:
- return &phy_db->calib_nch;
- case IWL_PHY_DB_CALIB_CHG_PAPD:
- if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
- return NULL;
- return &phy_db->calib_ch_group_papd[chg_id];
- case IWL_PHY_DB_CALIB_CHG_TXP:
- if (chg_id >= IWL_NUM_TXP_CH_GROUPS)
- return NULL;
- return &phy_db->calib_ch_group_txp[chg_id];
- default:
- return NULL;
- }
- return NULL;
-}
-
-static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type,
- u16 chg_id)
-{
- struct iwl_phy_db_entry *entry =
- iwl_phy_db_get_section(phy_db, type, chg_id);
- if (!entry)
- return;
-
- kfree(entry->data);
- entry->data = NULL;
- entry->size = 0;
-}
-
-void iwl_phy_db_free(struct iwl_phy_db *phy_db)
-{
- int i;
-
- if (!phy_db)
- return;
-
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
- for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
- for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
- iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i);
-
- kfree(phy_db);
-}
-IWL_EXPORT_SYMBOL(iwl_phy_db_free);
-
-int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt,
- gfp_t alloc_ctx)
-{
- struct iwl_calib_res_notif_phy_db *phy_db_notif =
- (struct iwl_calib_res_notif_phy_db *)pkt->data;
- enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type);
- u16 size = le16_to_cpu(phy_db_notif->length);
- struct iwl_phy_db_entry *entry;
- u16 chg_id = 0;
-
- if (!phy_db)
- return -EINVAL;
-
- if (type == IWL_PHY_DB_CALIB_CHG_PAPD ||
- type == IWL_PHY_DB_CALIB_CHG_TXP)
- chg_id = le16_to_cpup((__le16 *)phy_db_notif->data);
-
- entry = iwl_phy_db_get_section(phy_db, type, chg_id);
- if (!entry)
- return -EINVAL;
-
- kfree(entry->data);
- entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx);
- if (!entry->data) {
- entry->size = 0;
- return -ENOMEM;
- }
-
- entry->size = size;
-
- IWL_DEBUG_INFO(phy_db->trans,
- "%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
- __func__, __LINE__, type, size);
-
- return 0;
-}
-IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
-
-static int is_valid_channel(u16 ch_id)
-{
- if (ch_id <= 14 ||
- (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) ||
- (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) ||
- (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1))
- return 1;
- return 0;
-}
-
-static u8 ch_id_to_ch_index(u16 ch_id)
-{
- if (WARN_ON(!is_valid_channel(ch_id)))
- return 0xff;
-
- if (ch_id <= 14)
- return ch_id - 1;
- if (ch_id <= 64)
- return (ch_id + 20) / 4;
- if (ch_id <= 140)
- return (ch_id - 12) / 4;
- return (ch_id - 13) / 4;
-}
-
-
-static u16 channel_id_to_papd(u16 ch_id)
-{
- if (WARN_ON(!is_valid_channel(ch_id)))
- return 0xff;
-
- if (1 <= ch_id && ch_id <= 14)
- return 0;
- if (36 <= ch_id && ch_id <= 64)
- return 1;
- if (100 <= ch_id && ch_id <= 140)
- return 2;
- return 3;
-}
-
-static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id)
-{
- struct iwl_phy_db_chg_txp *txp_chg;
- int i;
- u8 ch_index = ch_id_to_ch_index(ch_id);
- if (ch_index == 0xff)
- return 0xff;
-
- for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) {
- txp_chg = (void *)phy_db->calib_ch_group_txp[i].data;
- if (!txp_chg)
- return 0xff;
- /*
- * Looking for the first channel group that its max channel is
- * higher then wanted channel.
- */
- if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
- return i;
- }
- return 0xff;
-}
-static
-int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
- u32 type, u8 **data, u16 *size, u16 ch_id)
-{
- struct iwl_phy_db_entry *entry;
- u16 ch_group_id = 0;
-
- if (!phy_db)
- return -EINVAL;
-
- /* find wanted channel group */
- if (type == IWL_PHY_DB_CALIB_CHG_PAPD)
- ch_group_id = channel_id_to_papd(ch_id);
- else if (type == IWL_PHY_DB_CALIB_CHG_TXP)
- ch_group_id = channel_id_to_txp(phy_db, ch_id);
-
- entry = iwl_phy_db_get_section(phy_db, type, ch_group_id);
- if (!entry)
- return -EINVAL;
-
- *data = entry->data;
- *size = entry->size;
-
- IWL_DEBUG_INFO(phy_db->trans,
- "%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
- __func__, __LINE__, type, *size);
-
- return 0;
-}
-
-static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type,
- u16 length, void *data)
-{
- struct iwl_phy_db_cmd phy_db_cmd;
- struct iwl_host_cmd cmd = {
- .id = PHY_DB_CMD,
- };
-
- IWL_DEBUG_INFO(phy_db->trans,
- "Sending PHY-DB hcmd of type %d, of length %d\n",
- type, length);
-
- /* Set phy db cmd variables */
- phy_db_cmd.type = cpu_to_le16(type);
- phy_db_cmd.length = cpu_to_le16(length);
-
- /* Set hcmd variables */
- cmd.data[0] = &phy_db_cmd;
- cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
- cmd.data[1] = data;
- cmd.len[1] = length;
- cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
-
- return iwl_trans_send_cmd(phy_db->trans, &cmd);
-}
-
-static int iwl_phy_db_send_all_channel_groups(
- struct iwl_phy_db *phy_db,
- enum iwl_phy_db_section_type type,
- u8 max_ch_groups)
-{
- u16 i;
- int err;
- struct iwl_phy_db_entry *entry;
-
- /* Send all the channel specific groups to operational fw */
- for (i = 0; i < max_ch_groups; i++) {
- entry = iwl_phy_db_get_section(phy_db,
- type,
- i);
- if (!entry)
- return -EINVAL;
-
- if (!entry->size)
- continue;
-
- /* Send the requested PHY DB section */
- err = iwl_send_phy_db_cmd(phy_db,
- type,
- entry->size,
- entry->data);
- if (err) {
- IWL_ERR(phy_db->trans,
- "Can't SEND phy_db section %d (%d), err %d\n",
- type, i, err);
- return err;
- }
-
- IWL_DEBUG_INFO(phy_db->trans,
- "Sent PHY_DB HCMD, type = %d num = %d\n",
- type, i);
- }
-
- return 0;
-}
-
-int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
-{
- u8 *data = NULL;
- u16 size = 0;
- int err;
-
- IWL_DEBUG_INFO(phy_db->trans,
- "Sending phy db data and configuration to runtime image\n");
-
- /* Send PHY DB CFG section */
- err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
- &data, &size, 0);
- if (err) {
- IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
- return err;
- }
-
- err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
- if (err) {
- IWL_ERR(phy_db->trans,
- "Cannot send HCMD of Phy DB cfg section\n");
- return err;
- }
-
- err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
- &data, &size, 0);
- if (err) {
- IWL_ERR(phy_db->trans,
- "Cannot get Phy DB non specific channel section\n");
- return err;
- }
-
- err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
- if (err) {
- IWL_ERR(phy_db->trans,
- "Cannot send HCMD of Phy DB non specific channel section\n");
- return err;
- }
-
- /* Send all the TXP channel specific data */
- err = iwl_phy_db_send_all_channel_groups(phy_db,
- IWL_PHY_DB_CALIB_CHG_PAPD,
- IWL_NUM_PAPD_CH_GROUPS);
- if (err) {
- IWL_ERR(phy_db->trans,
- "Cannot send channel specific PAPD groups\n");
- return err;
- }
-
- /* Send all the TXP channel specific data */
- err = iwl_phy_db_send_all_channel_groups(phy_db,
- IWL_PHY_DB_CALIB_CHG_TXP,
- IWL_NUM_TXP_CH_GROUPS);
- if (err) {
- IWL_ERR(phy_db->trans,
- "Cannot send channel specific TX power groups\n");
- return err;
- }
-
- IWL_DEBUG_INFO(phy_db->trans,
- "Finished sending phy db non channel data\n");
- return 0;
-}
-IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);
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