1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <linux/init.h>
64 #include <linux/kernel.h>
65 #include <linux/module.h>
66 #include <linux/dma-mapping.h>
67 #include <net/net_namespace.h>
68 #include <linux/netdevice.h>
69 #include <net/cfg80211.h>
70 #include <net/mac80211.h>
71 #include <net/netlink.h>
75 #include "iwl-debug.h"
78 #include "iwl-testmode.h"
79 #include "iwl-trans.h"
82 /* The TLVs used in the gnl message policy between the kernel module and
83 * user space application. iwl_testmode_gnl_msg_policy is to be carried
84 * through the NL80211_CMD_TESTMODE channel regulated by nl80211.
88 struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = {
89 [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, },
91 [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, },
92 [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, },
94 [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, },
95 [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, },
96 [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, },
98 [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, },
99 [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, },
101 [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, },
103 [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, },
104 [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, },
105 [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, },
107 [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, },
109 [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, },
111 [IWL_TM_ATTR_SRAM_ADDR] = { .type = NLA_U32, },
112 [IWL_TM_ATTR_SRAM_SIZE] = { .type = NLA_U32, },
113 [IWL_TM_ATTR_SRAM_DUMP] = { .type = NLA_UNSPEC, },
115 [IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, },
116 [IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, },
120 * See the struct iwl_rx_packet in iwl-commands.h for the format of the
121 * received events from the device
123 static inline int get_event_length(struct iwl_rx_mem_buffer *rxb)
125 struct iwl_rx_packet *pkt = rxb_addr(rxb);
127 return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
134 * This function multicasts the spontaneous messages from the device to the
135 * user space. It is invoked whenever there is a received messages
136 * from the device. This function is called within the ISR of the rx handlers
139 * The parsing of the message content is left to the user space application,
140 * The message content is treated as unattacked raw data and is encapsulated
141 * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space.
143 * @priv: the instance of iwlwifi device
144 * @rxb: pointer to rx data content received by the ISR
146 * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[].
147 * For the messages multicasting to the user application, the mandatory
149 * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT
150 * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content
153 static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv,
154 struct iwl_rx_mem_buffer *rxb)
156 struct ieee80211_hw *hw = priv->hw;
161 data = (void *)rxb_addr(rxb);
162 length = get_event_length(rxb);
164 if (!data || length == 0)
167 skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length,
171 "Run out of memory for messages to user space ?\n");
174 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT);
175 NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data);
176 cfg80211_testmode_event(skb, GFP_ATOMIC);
181 IWL_DEBUG_INFO(priv, "Ouch, overran buffer, check allocation!\n");
184 void iwl_testmode_init(struct iwl_priv *priv)
186 priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
187 priv->testmode_trace.trace_enabled = false;
188 priv->testmode_sram.sram_readed = false;
191 static void iwl_sram_cleanup(struct iwl_priv *priv)
193 if (priv->testmode_sram.sram_readed) {
194 kfree(priv->testmode_sram.buff_addr);
195 priv->testmode_sram.buff_addr = NULL;
196 priv->testmode_sram.buff_size = 0;
197 priv->testmode_sram.num_chunks = 0;
198 priv->testmode_sram.sram_readed = false;
202 static void iwl_trace_cleanup(struct iwl_priv *priv)
204 if (priv->testmode_trace.trace_enabled) {
205 if (priv->testmode_trace.cpu_addr &&
206 priv->testmode_trace.dma_addr)
207 dma_free_coherent(bus(priv)->dev,
208 priv->testmode_trace.total_size,
209 priv->testmode_trace.cpu_addr,
210 priv->testmode_trace.dma_addr);
211 priv->testmode_trace.trace_enabled = false;
212 priv->testmode_trace.cpu_addr = NULL;
213 priv->testmode_trace.trace_addr = NULL;
214 priv->testmode_trace.dma_addr = 0;
215 priv->testmode_trace.buff_size = 0;
216 priv->testmode_trace.total_size = 0;
221 void iwl_testmode_cleanup(struct iwl_priv *priv)
223 iwl_trace_cleanup(priv);
224 iwl_sram_cleanup(priv);
228 * This function handles the user application commands to the ucode.
230 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and
231 * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the
232 * host command to the ucode.
234 * If any mandatory field is missing, -ENOMSG is replied to the user space
235 * application; otherwise, the actual execution result of the host command to
238 * @hw: ieee80211_hw object that represents the device
239 * @tb: gnl message fields from the user space
241 static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb)
243 struct iwl_priv *priv = hw->priv;
244 struct iwl_host_cmd cmd;
246 memset(&cmd, 0, sizeof(struct iwl_host_cmd));
248 if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] ||
249 !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) {
251 "Error finding ucode command mandatory fields\n");
255 cmd.flags = CMD_ON_DEMAND;
256 cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]);
257 cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
258 cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
259 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
260 IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x,"
261 " len %d\n", cmd.id, cmd.flags, cmd.len[0]);
262 /* ok, let's submit the command to ucode */
263 return iwl_trans_send_cmd(trans(priv), &cmd);
268 * This function handles the user application commands for register access.
270 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
271 * handlers respectively.
273 * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the
274 * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32,
275 * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating
276 * the success of the command execution.
278 * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read
279 * value is returned with IWL_TM_ATTR_REG_VALUE32.
281 * @hw: ieee80211_hw object that represents the device
282 * @tb: gnl message fields from the user space
284 static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb)
286 struct iwl_priv *priv = hw->priv;
292 if (!tb[IWL_TM_ATTR_REG_OFFSET]) {
293 IWL_DEBUG_INFO(priv, "Error finding register offset\n");
296 ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]);
297 IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs);
299 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
300 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
301 val32 = iwl_read32(bus(priv), ofs);
302 IWL_INFO(priv, "32bit value to read 0x%x\n", val32);
304 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
306 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
309 NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32);
310 status = cfg80211_testmode_reply(skb);
313 "Error sending msg : %d\n", status);
315 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
316 if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
318 "Error finding value to write\n");
321 val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
322 IWL_INFO(priv, "32bit value to write 0x%x\n", val32);
323 iwl_write32(bus(priv), ofs, val32);
326 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
327 if (!tb[IWL_TM_ATTR_REG_VALUE8]) {
328 IWL_DEBUG_INFO(priv, "Error finding value to write\n");
331 val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]);
332 IWL_INFO(priv, "8bit value to write 0x%x\n", val8);
333 iwl_write8(bus(priv), ofs, val8);
336 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32:
337 val32 = iwl_read_prph(bus(priv), ofs);
338 IWL_INFO(priv, "32bit value to read 0x%x\n", val32);
340 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
342 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
345 NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32);
346 status = cfg80211_testmode_reply(skb);
349 "Error sending msg : %d\n", status);
351 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32:
352 if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
354 "Error finding value to write\n");
357 val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
358 IWL_INFO(priv, "32bit value to write 0x%x\n", val32);
359 iwl_write_prph(bus(priv), ofs, val32);
363 IWL_DEBUG_INFO(priv, "Unknown testmode register command ID\n");
375 static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv)
377 struct iwl_notification_wait calib_wait;
380 iwl_init_notification_wait(priv->shrd, &calib_wait,
381 CALIBRATION_COMPLETE_NOTIFICATION,
383 ret = iwlagn_init_alive_start(priv);
386 "Error configuring init calibration: %d\n", ret);
387 goto cfg_init_calib_error;
390 ret = iwl_wait_notification(priv->shrd, &calib_wait, 2 * HZ);
392 IWL_DEBUG_INFO(priv, "Error detecting"
393 " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret);
396 cfg_init_calib_error:
397 iwl_remove_notification(priv->shrd, &calib_wait);
402 * This function handles the user application commands for driver.
404 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
405 * handlers respectively.
407 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
408 * value of the actual command execution is replied to the user application.
410 * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP
411 * is used for carry the message while IWL_TM_ATTR_COMMAND must set to
412 * IWL_TM_CMD_DEV2APP_SYNC_RSP.
414 * @hw: ieee80211_hw object that represents the device
415 * @tb: gnl message fields from the user space
417 static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
419 struct iwl_priv *priv = hw->priv;
421 unsigned char *rsp_data_ptr = NULL;
422 int status = 0, rsp_data_len = 0;
423 char buf[32], *ptr = NULL;
424 unsigned int num, devid;
426 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
427 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
428 rsp_data_ptr = (unsigned char *)cfg(priv)->name;
429 rsp_data_len = strlen(cfg(priv)->name);
430 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
434 "Error allocating memory\n");
437 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
438 IWL_TM_CMD_DEV2APP_SYNC_RSP);
439 NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP,
440 rsp_data_len, rsp_data_ptr);
441 status = cfg80211_testmode_reply(skb);
443 IWL_DEBUG_INFO(priv, "Error sending msg : %d\n",
447 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
448 status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
451 "Error loading init ucode: %d\n", status);
454 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
455 iwl_testmode_cfg_init_calib(priv);
456 iwl_trans_stop_device(trans(priv));
459 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
460 status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
463 "Error loading runtime ucode: %d\n", status);
466 status = iwl_alive_start(priv);
469 "Error starting the device: %d\n", status);
472 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
473 iwl_scan_cancel_timeout(priv, 200);
474 iwl_trans_stop_device(trans(priv));
475 status = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
478 "Error loading WOWLAN ucode: %d\n", status);
481 status = iwl_alive_start(priv);
484 "Error starting the device: %d\n", status);
487 case IWL_TM_CMD_APP2DEV_GET_EEPROM:
488 if (priv->shrd->eeprom) {
489 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
490 cfg(priv)->base_params->eeprom_size + 20);
493 "Error allocating memory\n");
496 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
497 IWL_TM_CMD_DEV2APP_EEPROM_RSP);
498 NLA_PUT(skb, IWL_TM_ATTR_EEPROM,
499 cfg(priv)->base_params->eeprom_size,
501 status = cfg80211_testmode_reply(skb);
504 "Error sending msg : %d\n",
510 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
511 if (!tb[IWL_TM_ATTR_FIXRATE]) {
513 "Error finding fixrate setting\n");
516 priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
519 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
520 IWL_INFO(priv, "uCode version raw: 0x%x\n", priv->ucode_ver);
522 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
524 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
527 NLA_PUT_U32(skb, IWL_TM_ATTR_FW_VERSION, priv->ucode_ver);
528 status = cfg80211_testmode_reply(skb);
531 "Error sending msg : %d\n", status);
534 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
535 bus_get_hw_id(bus(priv), buf, sizeof(buf));
538 sscanf(strsep(&ptr, ":"), "%x", &num);
539 sscanf(strsep(&ptr, ":"), "%x", &devid);
540 IWL_INFO(priv, "Device ID = 0x%04x, SubDevice ID= 0x%04x\n",
542 devid |= (num << 16);
544 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
546 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
549 NLA_PUT_U32(skb, IWL_TM_ATTR_DEVICE_ID, devid);
550 status = cfg80211_testmode_reply(skb);
553 "Error sending msg : %d\n", status);
557 IWL_DEBUG_INFO(priv, "Unknown testmode driver command ID\n");
569 * This function handles the user application commands for uCode trace
571 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
572 * handlers respectively.
574 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
575 * value of the actual command execution is replied to the user application.
577 * @hw: ieee80211_hw object that represents the device
578 * @tb: gnl message fields from the user space
580 static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb)
582 struct iwl_priv *priv = hw->priv;
585 struct device *dev = bus(priv)->dev;
587 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
588 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
589 if (priv->testmode_trace.trace_enabled)
592 if (!tb[IWL_TM_ATTR_TRACE_SIZE])
593 priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF;
595 priv->testmode_trace.buff_size =
596 nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]);
597 if (!priv->testmode_trace.buff_size)
599 if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN ||
600 priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX)
603 priv->testmode_trace.total_size =
604 priv->testmode_trace.buff_size + TRACE_BUFF_PADD;
605 priv->testmode_trace.cpu_addr =
606 dma_alloc_coherent(dev,
607 priv->testmode_trace.total_size,
608 &priv->testmode_trace.dma_addr,
610 if (!priv->testmode_trace.cpu_addr)
612 priv->testmode_trace.trace_enabled = true;
613 priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN(
614 priv->testmode_trace.cpu_addr, 0x100);
615 memset(priv->testmode_trace.trace_addr, 0x03B,
616 priv->testmode_trace.buff_size);
617 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
618 sizeof(priv->testmode_trace.dma_addr) + 20);
621 "Error allocating memory\n");
622 iwl_trace_cleanup(priv);
625 NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR,
626 sizeof(priv->testmode_trace.dma_addr),
627 (u64 *)&priv->testmode_trace.dma_addr);
628 status = cfg80211_testmode_reply(skb);
631 "Error sending msg : %d\n",
634 priv->testmode_trace.num_chunks =
635 DIV_ROUND_UP(priv->testmode_trace.buff_size,
639 case IWL_TM_CMD_APP2DEV_END_TRACE:
640 iwl_trace_cleanup(priv);
643 IWL_DEBUG_INFO(priv, "Unknown testmode mem command ID\n");
650 if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) ==
651 IWL_TM_CMD_APP2DEV_BEGIN_TRACE)
652 iwl_trace_cleanup(priv);
656 static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb,
658 struct netlink_callback *cb)
660 struct iwl_priv *priv = hw->priv;
663 if (priv->testmode_trace.trace_enabled &&
664 priv->testmode_trace.trace_addr) {
666 if (idx >= priv->testmode_trace.num_chunks)
668 length = DUMP_CHUNK_SIZE;
669 if (((idx + 1) == priv->testmode_trace.num_chunks) &&
670 (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE))
671 length = priv->testmode_trace.buff_size %
674 NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length,
675 priv->testmode_trace.trace_addr +
676 (DUMP_CHUNK_SIZE * idx));
688 * This function handles the user application switch ucode ownership.
690 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and
691 * decide who the current owner of the uCode
693 * If the current owner is OWNERSHIP_TM, then the only host command
694 * can deliver to uCode is from testmode, all the other host commands
697 * default driver is the owner of uCode in normal operational mode
699 * @hw: ieee80211_hw object that represents the device
700 * @tb: gnl message fields from the user space
702 static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
704 struct iwl_priv *priv = hw->priv;
707 if (!tb[IWL_TM_ATTR_UCODE_OWNER]) {
708 IWL_DEBUG_INFO(priv, "Error finding ucode owner\n");
712 owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]);
713 if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM))
714 priv->shrd->ucode_owner = owner;
716 IWL_DEBUG_INFO(priv, "Invalid owner\n");
723 * This function handles the user application commands for SRAM data dump
725 * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and
726 * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading
728 * Several error will be retured, -EBUSY if the SRAM data retrieved by
729 * previous command has not been delivered to userspace, or -ENOMSG if
730 * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE)
731 * are missing, or -ENOMEM if the buffer allocation fails.
733 * Otherwise 0 is replied indicating the success of the SRAM reading.
735 * @hw: ieee80211_hw object that represents the device
736 * @tb: gnl message fields from the user space
738 static int iwl_testmode_sram(struct ieee80211_hw *hw, struct nlattr **tb)
740 struct iwl_priv *priv = hw->priv;
741 u32 base, ofs, size, maxsize;
743 if (priv->testmode_sram.sram_readed)
746 if (!tb[IWL_TM_ATTR_SRAM_ADDR]) {
747 IWL_DEBUG_INFO(priv, "Error finding SRAM offset address\n");
750 ofs = nla_get_u32(tb[IWL_TM_ATTR_SRAM_ADDR]);
751 if (!tb[IWL_TM_ATTR_SRAM_SIZE]) {
752 IWL_DEBUG_INFO(priv, "Error finding size for SRAM reading\n");
755 size = nla_get_u32(tb[IWL_TM_ATTR_SRAM_SIZE]);
756 switch (priv->shrd->ucode_type) {
757 case IWL_UCODE_REGULAR:
758 maxsize = trans(priv)->ucode_rt.data.len;
761 maxsize = trans(priv)->ucode_init.data.len;
763 case IWL_UCODE_WOWLAN:
764 maxsize = trans(priv)->ucode_wowlan.data.len;
767 IWL_DEBUG_INFO(priv, "Error, uCode does not been loaded\n");
770 IWL_DEBUG_INFO(priv, "Error, unsupported uCode type\n");
773 if ((ofs + size) > maxsize) {
774 IWL_DEBUG_INFO(priv, "Invalid offset/size: out of range\n");
777 priv->testmode_sram.buff_size = (size / 4) * 4;
778 priv->testmode_sram.buff_addr =
779 kmalloc(priv->testmode_sram.buff_size, GFP_KERNEL);
780 if (priv->testmode_sram.buff_addr == NULL) {
781 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
785 _iwl_read_targ_mem_words(bus(priv), base + ofs,
786 priv->testmode_sram.buff_addr,
787 priv->testmode_sram.buff_size / 4);
788 priv->testmode_sram.num_chunks =
789 DIV_ROUND_UP(priv->testmode_sram.buff_size, DUMP_CHUNK_SIZE);
790 priv->testmode_sram.sram_readed = true;
794 static int iwl_testmode_sram_dump(struct ieee80211_hw *hw, struct nlattr **tb,
796 struct netlink_callback *cb)
798 struct iwl_priv *priv = hw->priv;
801 if (priv->testmode_sram.sram_readed) {
803 if (idx >= priv->testmode_sram.num_chunks) {
804 iwl_sram_cleanup(priv);
807 length = DUMP_CHUNK_SIZE;
808 if (((idx + 1) == priv->testmode_sram.num_chunks) &&
809 (priv->testmode_sram.buff_size % DUMP_CHUNK_SIZE))
810 length = priv->testmode_sram.buff_size %
813 NLA_PUT(skb, IWL_TM_ATTR_SRAM_DUMP, length,
814 priv->testmode_sram.buff_addr +
815 (DUMP_CHUNK_SIZE * idx));
827 /* The testmode gnl message handler that takes the gnl message from the
828 * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
829 * invoke the corresponding handlers.
831 * This function is invoked when there is user space application sending
832 * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated
835 * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before
836 * dispatching it to the corresponding handler.
838 * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application;
839 * -ENOSYS is replied to the user application if the command is unknown;
840 * Otherwise, the command is dispatched to the respective handler.
842 * @hw: ieee80211_hw object that represents the device
843 * @data: pointer to user space message
844 * @len: length in byte of @data
846 int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
848 struct nlattr *tb[IWL_TM_ATTR_MAX];
849 struct iwl_priv *priv = hw->priv;
852 result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
853 iwl_testmode_gnl_msg_policy);
856 "Error parsing the gnl message : %d\n", result);
860 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
861 if (!tb[IWL_TM_ATTR_COMMAND]) {
862 IWL_DEBUG_INFO(priv, "Error finding testmode command type\n");
865 /* in case multiple accesses to the device happens */
866 mutex_lock(&priv->shrd->mutex);
868 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
869 case IWL_TM_CMD_APP2DEV_UCODE:
870 IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n");
871 result = iwl_testmode_ucode(hw, tb);
873 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
874 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
875 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
876 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32:
877 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32:
878 IWL_DEBUG_INFO(priv, "testmode cmd to register\n");
879 result = iwl_testmode_reg(hw, tb);
881 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
882 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
883 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
884 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
885 case IWL_TM_CMD_APP2DEV_GET_EEPROM:
886 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
887 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
888 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
889 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
890 IWL_DEBUG_INFO(priv, "testmode cmd to driver\n");
891 result = iwl_testmode_driver(hw, tb);
894 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
895 case IWL_TM_CMD_APP2DEV_END_TRACE:
896 case IWL_TM_CMD_APP2DEV_READ_TRACE:
897 IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n");
898 result = iwl_testmode_trace(hw, tb);
901 case IWL_TM_CMD_APP2DEV_OWNERSHIP:
902 IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n");
903 result = iwl_testmode_ownership(hw, tb);
906 case IWL_TM_CMD_APP2DEV_READ_SRAM:
907 IWL_DEBUG_INFO(priv, "testmode sram read cmd to driver\n");
908 result = iwl_testmode_sram(hw, tb);
912 IWL_DEBUG_INFO(priv, "Unknown testmode command\n");
917 mutex_unlock(&priv->shrd->mutex);
921 int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
922 struct netlink_callback *cb,
925 struct nlattr *tb[IWL_TM_ATTR_MAX];
926 struct iwl_priv *priv = hw->priv;
931 /* offset by 1 since commands start at 0 */
932 cmd = cb->args[3] - 1;
934 result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
935 iwl_testmode_gnl_msg_policy);
938 "Error parsing the gnl message : %d\n", result);
942 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
943 if (!tb[IWL_TM_ATTR_COMMAND]) {
945 "Error finding testmode command type\n");
948 cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
949 cb->args[3] = cmd + 1;
952 /* in case multiple accesses to the device happens */
953 mutex_lock(&priv->shrd->mutex);
955 case IWL_TM_CMD_APP2DEV_READ_TRACE:
956 IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n");
957 result = iwl_testmode_trace_dump(hw, tb, skb, cb);
959 case IWL_TM_CMD_APP2DEV_DUMP_SRAM:
960 IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n");
961 result = iwl_testmode_sram_dump(hw, tb, skb, cb);
968 mutex_unlock(&priv->shrd->mutex);