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iwlwifi: enhance testmode command sram_read
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-testmode.c
CommitLineData
4613e72d
CK		 1/******************************************************************************
2 *
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.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved.
9 *
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.
13 *
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.
18 *
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,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2010 - 2011 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
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
45 * distribution.
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.
49 *
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,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.
61 *
62 *****************************************************************************/
63#include <linux/init.h>
64#include <linux/kernel.h>
65#include <linux/module.h>
522376d2 66#include <linux/dma-mapping.h>
4613e72d
CK		 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>
72
69a679b0 73#include "iwl-wifi.h"
4613e72d
CK		 74#include "iwl-dev.h"
75#include "iwl-core.h"
76#include "iwl-debug.h"
4613e72d
CK		 77#include "iwl-io.h"
78#include "iwl-agn.h"
79#include "iwl-testmode.h"
bdfbf092 80#include "iwl-trans.h"
0bec12b8 81#include "iwl-bus.h"
4613e72d
CK		 82
83/* The TLVs used in the gnl message policy between the kernel module and
84 * user space application. iwl_testmode_gnl_msg_policy is to be carried
85 * through the NL80211_CMD_TESTMODE channel regulated by nl80211.
86 * See iwl-testmode.h
87 */
88static
89struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = {
90 [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, },
91
92 [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, },
93 [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, },
94
95 [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, },
96 [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, },
97 [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, },
98
99 [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, },
100 [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, },
7a4e5281 101
4babc358
WYG		 102 [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, },
103
7a4e5281 104 [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, },
eb64dca0 105 [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, },
49b72100 106 [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, },
7a4e5281 107
6489854b 108 [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, },
49b72100 109
e98a1939 110 [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, },
306713fd
HK		 111
112 [IWL_TM_ATTR_SRAM_ADDR] = { .type = NLA_U32, },
113 [IWL_TM_ATTR_SRAM_SIZE] = { .type = NLA_U32, },
114 [IWL_TM_ATTR_SRAM_DUMP] = { .type = NLA_UNSPEC, },
e1a38fe1
HK		 115
116 [IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, },
0bec12b8 117 [IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, },
4613e72d
CK		 118};
119
120/*
121 * See the struct iwl_rx_packet in iwl-commands.h for the format of the
122 * received events from the device
123 */
124static inline int get_event_length(struct iwl_rx_mem_buffer *rxb)
125{
126 struct iwl_rx_packet *pkt = rxb_addr(rxb);
127 if (pkt)
128 return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
129 else
130 return 0;
131}
132
133
134/*
135 * This function multicasts the spontaneous messages from the device to the
136 * user space. It is invoked whenever there is a received messages
137 * from the device. This function is called within the ISR of the rx handlers
138 * in iwlagn driver.
139 *
140 * The parsing of the message content is left to the user space application,
141 * The message content is treated as unattacked raw data and is encapsulated
142 * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space.
143 *
144 * @priv: the instance of iwlwifi device
145 * @rxb: pointer to rx data content received by the ISR
146 *
147 * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[].
148 * For the messages multicasting to the user application, the mandatory
149 * TLV fields are :
150 * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT
151 * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content
152 */
153
154static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv,
155 struct iwl_rx_mem_buffer *rxb)
156{
157 struct ieee80211_hw *hw = priv->hw;
158 struct sk_buff *skb;
159 void *data;
160 int length;
161
162 data = (void *)rxb_addr(rxb);
163 length = get_event_length(rxb);
164
165 if (!data || length == 0)
166 return;
167
168 skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length,
169 GFP_ATOMIC);
170 if (skb == NULL) {
171 IWL_DEBUG_INFO(priv,
172 "Run out of memory for messages to user space ?\n");
173 return;
174 }
175 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT);
176 NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data);
177 cfg80211_testmode_event(skb, GFP_ATOMIC);
178 return;
179
180nla_put_failure:
181 kfree_skb(skb);
182 IWL_DEBUG_INFO(priv, "Ouch, overran buffer, check allocation!\n");
183}
184
185void iwl_testmode_init(struct iwl_priv *priv)
186{
187 priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
7a4e5281 188 priv->testmode_trace.trace_enabled = false;
306713fd
HK		 189 priv->testmode_sram.sram_readed = false;
190}
191
6b5a26f5 192static void iwl_sram_cleanup(struct iwl_priv *priv)
306713fd
HK		 193{
194 if (priv->testmode_sram.sram_readed) {
195 kfree(priv->testmode_sram.buff_addr);
196 priv->testmode_sram.buff_addr = NULL;
197 priv->testmode_sram.buff_size = 0;
198 priv->testmode_sram.num_chunks = 0;
199 priv->testmode_sram.sram_readed = false;
200 }
7a4e5281
WYG		 201}
202
203static void iwl_trace_cleanup(struct iwl_priv *priv)
204{
7a4e5281
WYG		 205 if (priv->testmode_trace.trace_enabled) {
206 if (priv->testmode_trace.cpu_addr &&
207 priv->testmode_trace.dma_addr)
26bfc0cf 208 dma_free_coherent(bus(priv)->dev,
49b72100 209 priv->testmode_trace.total_size,
7a4e5281
WYG		 210 priv->testmode_trace.cpu_addr,
211 priv->testmode_trace.dma_addr);
212 priv->testmode_trace.trace_enabled = false;
213 priv->testmode_trace.cpu_addr = NULL;
214 priv->testmode_trace.trace_addr = NULL;
215 priv->testmode_trace.dma_addr = 0;
49b72100
WYG		 216 priv->testmode_trace.buff_size = 0;
217 priv->testmode_trace.total_size = 0;
7a4e5281
WYG		 218 }
219}
220
221
222void iwl_testmode_cleanup(struct iwl_priv *priv)
223{
224 iwl_trace_cleanup(priv);
306713fd 225 iwl_sram_cleanup(priv);
4613e72d
CK		 226}
227
228/*
229 * This function handles the user application commands to the ucode.
230 *
231 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and
232 * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the
233 * host command to the ucode.
234 *
235 * If any mandatory field is missing, -ENOMSG is replied to the user space
236 * application; otherwise, the actual execution result of the host command to
237 * ucode is replied.
238 *
239 * @hw: ieee80211_hw object that represents the device
240 * @tb: gnl message fields from the user space
241 */
242static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb)
243{
244 struct iwl_priv *priv = hw->priv;
245 struct iwl_host_cmd cmd;
246
247 memset(&cmd, 0, sizeof(struct iwl_host_cmd));
248
249 if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] ||
250 !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) {
251 IWL_DEBUG_INFO(priv,
252 "Error finding ucode command mandatory fields\n");
253 return -ENOMSG;
254 }
255
c7c1115b 256 cmd.flags = CMD_ON_DEMAND;
4613e72d 257 cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]);
3fa50738
JB		 258 cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
259 cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
4ce7cc2b 260 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
4613e72d 261 IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x,"
3fa50738 262 " len %d\n", cmd.id, cmd.flags, cmd.len[0]);
4613e72d 263 /* ok, let's submit the command to ucode */
e6bb4c9c 264 return iwl_trans_send_cmd(trans(priv), &cmd);
4613e72d
CK		 265}
266
267
268/*
269 * This function handles the user application commands for register access.
270 *
271 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
272 * handlers respectively.
273 *
274 * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the
275 * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32,
276 * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating
277 * the success of the command execution.
278 *
279 * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read
280 * value is returned with IWL_TM_ATTR_REG_VALUE32.
281 *
282 * @hw: ieee80211_hw object that represents the device
283 * @tb: gnl message fields from the user space
284 */
285static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb)
286{
287 struct iwl_priv *priv = hw->priv;
288 u32 ofs, val32;
289 u8 val8;
290 struct sk_buff *skb;
291 int status = 0;
292
293 if (!tb[IWL_TM_ATTR_REG_OFFSET]) {
294 IWL_DEBUG_INFO(priv, "Error finding register offset\n");
295 return -ENOMSG;
296 }
297 ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]);
298 IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs);
299
300 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
72bcacc2 301 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
102f097f 302 val32 = iwl_read_direct32(bus(priv), ofs);
4613e72d
CK		 303 IWL_INFO(priv, "32bit value to read 0x%x\n", val32);
304
305 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
306 if (!skb) {
307 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
308 return -ENOMEM;
309 }
310 NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32);
311 status = cfg80211_testmode_reply(skb);
312 if (status < 0)
313 IWL_DEBUG_INFO(priv,
314 "Error sending msg : %d\n", status);
315 break;
72bcacc2 316 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
4613e72d
CK		 317 if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
318 IWL_DEBUG_INFO(priv,
319 "Error finding value to write\n");
320 return -ENOMSG;
321 } else {
322 val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
323 IWL_INFO(priv, "32bit value to write 0x%x\n", val32);
102f097f 324 iwl_write_direct32(bus(priv), ofs, val32);
4613e72d
CK		 325 }
326 break;
72bcacc2 327 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
4613e72d
CK		 328 if (!tb[IWL_TM_ATTR_REG_VALUE8]) {
329 IWL_DEBUG_INFO(priv, "Error finding value to write\n");
330 return -ENOMSG;
331 } else {
332 val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]);
333 IWL_INFO(priv, "8bit value to write 0x%x\n", val8);
83ed9015 334 iwl_write8(bus(priv), ofs, val8);
4613e72d
CK		 335 }
336 break;
72bcacc2
HK		 337 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32:
338 val32 = iwl_read_prph(bus(priv), ofs);
339 IWL_INFO(priv, "32bit value to read 0x%x\n", val32);
340
341 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
342 if (!skb) {
343 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
344 return -ENOMEM;
345 }
346 NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32);
347 status = cfg80211_testmode_reply(skb);
348 if (status < 0)
349 IWL_DEBUG_INFO(priv,
350 "Error sending msg : %d\n", status);
351 break;
352 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32:
353 if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
354 IWL_DEBUG_INFO(priv,
355 "Error finding value to write\n");
356 return -ENOMSG;
357 } else {
358 val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
359 IWL_INFO(priv, "32bit value to write 0x%x\n", val32);
360 iwl_write_prph(bus(priv), ofs, val32);
361 }
362 break;
4613e72d
CK		 363 default:
364 IWL_DEBUG_INFO(priv, "Unknown testmode register command ID\n");
365 return -ENOSYS;
366 }
367
368 return status;
369
370nla_put_failure:
371 kfree_skb(skb);
372 return -EMSGSIZE;
373}
374
375
376static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv)
377{
378 struct iwl_notification_wait calib_wait;
379 int ret;
380
dd5fe104 381 iwl_init_notification_wait(priv->shrd, &calib_wait,
4613e72d
CK		 382 CALIBRATION_COMPLETE_NOTIFICATION,
383 NULL, NULL);
69a679b0 384 ret = iwl_init_alive_start(trans(priv));
4613e72d
CK		 385 if (ret) {
386 IWL_DEBUG_INFO(priv,
387 "Error configuring init calibration: %d\n", ret);
388 goto cfg_init_calib_error;
389 }
390
dd5fe104 391 ret = iwl_wait_notification(priv->shrd, &calib_wait, 2 * HZ);
4613e72d
CK		 392 if (ret)
393 IWL_DEBUG_INFO(priv, "Error detecting"
394 " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret);
395 return ret;
396
397cfg_init_calib_error:
dd5fe104 398 iwl_remove_notification(priv->shrd, &calib_wait);
4613e72d
CK		 399 return ret;
400}
401
402/*
403 * This function handles the user application commands for driver.
404 *
405 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
406 * handlers respectively.
407 *
408 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
409 * value of the actual command execution is replied to the user application.
410 *
411 * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP
412 * is used for carry the message while IWL_TM_ATTR_COMMAND must set to
413 * IWL_TM_CMD_DEV2APP_SYNC_RSP.
414 *
415 * @hw: ieee80211_hw object that represents the device
416 * @tb: gnl message fields from the user space
417 */
418static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
419{
420 struct iwl_priv *priv = hw->priv;
69a679b0 421 struct iwl_trans *trans = trans(priv);
4613e72d
CK		 422 struct sk_buff *skb;
423 unsigned char *rsp_data_ptr = NULL;
424 int status = 0, rsp_data_len = 0;
fb6c1c6c 425 u32 devid;
4613e72d
CK		 426
427 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
428 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
38622419
DF		 429 rsp_data_ptr = (unsigned char *)cfg(priv)->name;
430 rsp_data_len = strlen(cfg(priv)->name);
4613e72d
CK		 431 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
432 rsp_data_len + 20);
433 if (!skb) {
434 IWL_DEBUG_INFO(priv,
435 "Error allocating memory\n");
436 return -ENOMEM;
437 }
438 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
439 IWL_TM_CMD_DEV2APP_SYNC_RSP);
440 NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP,
441 rsp_data_len, rsp_data_ptr);
442 status = cfg80211_testmode_reply(skb);
443 if (status < 0)
444 IWL_DEBUG_INFO(priv, "Error sending msg : %d\n",
445 status);
446 break;
447
448 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
69a679b0 449 status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_INIT);
4613e72d
CK		 450 if (status)
451 IWL_DEBUG_INFO(priv,
452 "Error loading init ucode: %d\n", status);
453 break;
454
455 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
456 iwl_testmode_cfg_init_calib(priv);
69a679b0 457 iwl_trans_stop_device(trans);
4613e72d
CK		 458 break;
459
460 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
69a679b0 461 status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_REGULAR);
4613e72d
CK		 462 if (status) {
463 IWL_DEBUG_INFO(priv,
464 "Error loading runtime ucode: %d\n", status);
465 break;
466 }
467 status = iwl_alive_start(priv);
468 if (status)
469 IWL_DEBUG_INFO(priv,
470 "Error starting the device: %d\n", status);
471 break;
472
d4af19fe
HK		 473 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
474 iwl_scan_cancel_timeout(priv, 200);
69a679b0
DF		 475 iwl_trans_stop_device(trans);
476 status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_WOWLAN);
d4af19fe
HK		 477 if (status) {
478 IWL_DEBUG_INFO(priv,
479 "Error loading WOWLAN ucode: %d\n", status);
480 break;
481 }
482 status = iwl_alive_start(priv);
483 if (status)
484 IWL_DEBUG_INFO(priv,
485 "Error starting the device: %d\n", status);
486 break;
487
4babc358 488 case IWL_TM_CMD_APP2DEV_GET_EEPROM:
ab36eab2 489 if (priv->shrd->eeprom) {
4babc358 490 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
38622419 491 cfg(priv)->base_params->eeprom_size + 20);
4babc358
WYG		 492 if (!skb) {
493 IWL_DEBUG_INFO(priv,
494 "Error allocating memory\n");
495 return -ENOMEM;
496 }
497 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
498 IWL_TM_CMD_DEV2APP_EEPROM_RSP);
499 NLA_PUT(skb, IWL_TM_ATTR_EEPROM,
38622419 500 cfg(priv)->base_params->eeprom_size,
ab36eab2 501 priv->shrd->eeprom);
4babc358
WYG		 502 status = cfg80211_testmode_reply(skb);
503 if (status < 0)
504 IWL_DEBUG_INFO(priv,
505 "Error sending msg : %d\n",
506 status);
507 } else
508 return -EFAULT;
509 break;
510
6489854b
WYG		 511 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
512 if (!tb[IWL_TM_ATTR_FIXRATE]) {
513 IWL_DEBUG_INFO(priv,
514 "Error finding fixrate setting\n");
515 return -ENOMSG;
516 }
4e308119 517 priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
6489854b
WYG		 518 break;
519
e1a38fe1
HK		 520 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
521 IWL_INFO(priv, "uCode version raw: 0x%x\n", priv->ucode_ver);
522
523 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
524 if (!skb) {
525 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
526 return -ENOMEM;
527 }
528 NLA_PUT_U32(skb, IWL_TM_ATTR_FW_VERSION, priv->ucode_ver);
529 status = cfg80211_testmode_reply(skb);
530 if (status < 0)
531 IWL_DEBUG_INFO(priv,
532 "Error sending msg : %d\n", status);
533 break;
534
0bec12b8 535 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
fb6c1c6c
WYG		 536 devid = bus_get_hw_id(bus(priv));
537 IWL_INFO(priv, "hw version: 0x%x\n", devid);
0bec12b8
HK		 538
539 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
540 if (!skb) {
541 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
542 return -ENOMEM;
543 }
544 NLA_PUT_U32(skb, IWL_TM_ATTR_DEVICE_ID, devid);
545 status = cfg80211_testmode_reply(skb);
546 if (status < 0)
547 IWL_DEBUG_INFO(priv,
548 "Error sending msg : %d\n", status);
549 break;
550
4613e72d
CK		 551 default:
552 IWL_DEBUG_INFO(priv, "Unknown testmode driver command ID\n");
553 return -ENOSYS;
554 }
555 return status;
556
557nla_put_failure:
558 kfree_skb(skb);
559 return -EMSGSIZE;
560}
561
7a4e5281
WYG		 562
563/*
564 * This function handles the user application commands for uCode trace
565 *
566 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
567 * handlers respectively.
568 *
569 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
570 * value of the actual command execution is replied to the user application.
571 *
572 * @hw: ieee80211_hw object that represents the device
573 * @tb: gnl message fields from the user space
574 */
575static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb)
576{
577 struct iwl_priv *priv = hw->priv;
578 struct sk_buff *skb;
579 int status = 0;
26bfc0cf 580 struct device *dev = bus(priv)->dev;
7a4e5281
WYG		 581
582 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
583 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
584 if (priv->testmode_trace.trace_enabled)
585 return -EBUSY;
586
49b72100
WYG		 587 if (!tb[IWL_TM_ATTR_TRACE_SIZE])
588 priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF;
589 else
590 priv->testmode_trace.buff_size =
591 nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]);
592 if (!priv->testmode_trace.buff_size)
593 return -EINVAL;
594 if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN ||
595 priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX)
596 return -EINVAL;
597
598 priv->testmode_trace.total_size =
599 priv->testmode_trace.buff_size + TRACE_BUFF_PADD;
7a4e5281
WYG		 600 priv->testmode_trace.cpu_addr =
601 dma_alloc_coherent(dev,
49b72100 602 priv->testmode_trace.total_size,
7a4e5281
WYG		 603 &priv->testmode_trace.dma_addr,
604 GFP_KERNEL);
605 if (!priv->testmode_trace.cpu_addr)
606 return -ENOMEM;
607 priv->testmode_trace.trace_enabled = true;
608 priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN(
609 priv->testmode_trace.cpu_addr, 0x100);
610 memset(priv->testmode_trace.trace_addr, 0x03B,
49b72100 611 priv->testmode_trace.buff_size);
7a4e5281
WYG		 612 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
613 sizeof(priv->testmode_trace.dma_addr) + 20);
614 if (!skb) {
615 IWL_DEBUG_INFO(priv,
616 "Error allocating memory\n");
617 iwl_trace_cleanup(priv);
618 return -ENOMEM;
619 }
620 NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR,
621 sizeof(priv->testmode_trace.dma_addr),
622 (u64 *)&priv->testmode_trace.dma_addr);
623 status = cfg80211_testmode_reply(skb);
624 if (status < 0) {
625 IWL_DEBUG_INFO(priv,
626 "Error sending msg : %d\n",
627 status);
628 }
eb64dca0
WYG		 629 priv->testmode_trace.num_chunks =
630 DIV_ROUND_UP(priv->testmode_trace.buff_size,
e056a653 631 DUMP_CHUNK_SIZE);
7a4e5281
WYG		 632 break;
633
634 case IWL_TM_CMD_APP2DEV_END_TRACE:
635 iwl_trace_cleanup(priv);
636 break;
7a4e5281
WYG		 637 default:
638 IWL_DEBUG_INFO(priv, "Unknown testmode mem command ID\n");
639 return -ENOSYS;
640 }
641 return status;
642
643nla_put_failure:
644 kfree_skb(skb);
645 if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) ==
646 IWL_TM_CMD_APP2DEV_BEGIN_TRACE)
647 iwl_trace_cleanup(priv);
648 return -EMSGSIZE;
649}
650
eb64dca0
WYG		 651static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb,
652 struct sk_buff *skb,
653 struct netlink_callback *cb)
654{
655 struct iwl_priv *priv = hw->priv;
656 int idx, length;
657
658 if (priv->testmode_trace.trace_enabled &&
659 priv->testmode_trace.trace_addr) {
660 idx = cb->args[4];
661 if (idx >= priv->testmode_trace.num_chunks)
662 return -ENOENT;
e056a653 663 length = DUMP_CHUNK_SIZE;
eb64dca0 664 if (((idx + 1) == priv->testmode_trace.num_chunks) &&
e056a653 665 (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE))
eb64dca0 666 length = priv->testmode_trace.buff_size %
e056a653 667 DUMP_CHUNK_SIZE;
eb64dca0
WYG		 668
669 NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length,
670 priv->testmode_trace.trace_addr +
e056a653 671 (DUMP_CHUNK_SIZE * idx));
eb64dca0
WYG		 672 idx++;
673 cb->args[4] = idx;
674 return 0;
675 } else
676 return -EFAULT;
677
678 nla_put_failure:
679 return -ENOBUFS;
680}
681
e98a1939
WYG		 682/*
683 * This function handles the user application switch ucode ownership.
684 *
685 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and
686 * decide who the current owner of the uCode
687 *
688 * If the current owner is OWNERSHIP_TM, then the only host command
689 * can deliver to uCode is from testmode, all the other host commands
690 * will dropped.
691 *
692 * default driver is the owner of uCode in normal operational mode
693 *
694 * @hw: ieee80211_hw object that represents the device
695 * @tb: gnl message fields from the user space
696 */
697static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
698{
699 struct iwl_priv *priv = hw->priv;
700 u8 owner;
701
702 if (!tb[IWL_TM_ATTR_UCODE_OWNER]) {
703 IWL_DEBUG_INFO(priv, "Error finding ucode owner\n");
704 return -ENOMSG;
705 }
706
707 owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]);
708 if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM))
fd656935 709 priv->shrd->ucode_owner = owner;
e98a1939
WYG		 710 else {
711 IWL_DEBUG_INFO(priv, "Invalid owner\n");
712 return -EINVAL;
713 }
714 return 0;
715}
716
306713fd
HK		 717/*
718 * This function handles the user application commands for SRAM data dump
719 *
720 * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and
721 * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading
722 *
723 * Several error will be retured, -EBUSY if the SRAM data retrieved by
724 * previous command has not been delivered to userspace, or -ENOMSG if
725 * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE)
726 * are missing, or -ENOMEM if the buffer allocation fails.
727 *
728 * Otherwise 0 is replied indicating the success of the SRAM reading.
729 *
730 * @hw: ieee80211_hw object that represents the device
731 * @tb: gnl message fields from the user space
732 */
733static int iwl_testmode_sram(struct ieee80211_hw *hw, struct nlattr **tb)
734{
735 struct iwl_priv *priv = hw->priv;
b07f08a5 736 u32 ofs, size, maxsize;
306713fd
HK		 737
738 if (priv->testmode_sram.sram_readed)
739 return -EBUSY;
740
741 if (!tb[IWL_TM_ATTR_SRAM_ADDR]) {
742 IWL_DEBUG_INFO(priv, "Error finding SRAM offset address\n");
743 return -ENOMSG;
744 }
745 ofs = nla_get_u32(tb[IWL_TM_ATTR_SRAM_ADDR]);
746 if (!tb[IWL_TM_ATTR_SRAM_SIZE]) {
747 IWL_DEBUG_INFO(priv, "Error finding size for SRAM reading\n");
748 return -ENOMSG;
749 }
750 size = nla_get_u32(tb[IWL_TM_ATTR_SRAM_SIZE]);
3d6acefc 751 switch (priv->shrd->ucode_type) {
76de2f29
KH		 752 case IWL_UCODE_REGULAR:
753 maxsize = trans(priv)->ucode_rt.data.len;
754 break;
755 case IWL_UCODE_INIT:
756 maxsize = trans(priv)->ucode_init.data.len;
757 break;
758 case IWL_UCODE_WOWLAN:
759 maxsize = trans(priv)->ucode_wowlan.data.len;
760 break;
761 case IWL_UCODE_NONE:
762 IWL_DEBUG_INFO(priv, "Error, uCode does not been loaded\n");
763 return -ENOSYS;
764 default:
765 IWL_DEBUG_INFO(priv, "Error, unsupported uCode type\n");
766 return -ENOSYS;
767 }
b07f08a5 768 if ((ofs + size) > (maxsize + SRAM_DATA_SEG_OFFSET)) {
76de2f29
KH		 769 IWL_DEBUG_INFO(priv, "Invalid offset/size: out of range\n");
770 return -EINVAL;
771 }
306713fd
HK		 772 priv->testmode_sram.buff_size = (size / 4) * 4;
773 priv->testmode_sram.buff_addr =
774 kmalloc(priv->testmode_sram.buff_size, GFP_KERNEL);
775 if (priv->testmode_sram.buff_addr == NULL) {
776 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
777 return -ENOMEM;
778 }
b07f08a5 779 _iwl_read_targ_mem_words(bus(priv), ofs,
306713fd
HK		 780 priv->testmode_sram.buff_addr,
781 priv->testmode_sram.buff_size / 4);
782 priv->testmode_sram.num_chunks =
e056a653 783 DIV_ROUND_UP(priv->testmode_sram.buff_size, DUMP_CHUNK_SIZE);
306713fd
HK		 784 priv->testmode_sram.sram_readed = true;
785 return 0;
786}
787
788static int iwl_testmode_sram_dump(struct ieee80211_hw *hw, struct nlattr **tb,
789 struct sk_buff *skb,
790 struct netlink_callback *cb)
791{
792 struct iwl_priv *priv = hw->priv;
793 int idx, length;
794
795 if (priv->testmode_sram.sram_readed) {
796 idx = cb->args[4];
797 if (idx >= priv->testmode_sram.num_chunks) {
798 iwl_sram_cleanup(priv);
799 return -ENOENT;
800 }
e056a653 801 length = DUMP_CHUNK_SIZE;
306713fd 802 if (((idx + 1) == priv->testmode_sram.num_chunks) &&
e056a653 803 (priv->testmode_sram.buff_size % DUMP_CHUNK_SIZE))
306713fd 804 length = priv->testmode_sram.buff_size %
e056a653 805 DUMP_CHUNK_SIZE;
306713fd
HK		 806
807 NLA_PUT(skb, IWL_TM_ATTR_SRAM_DUMP, length,
808 priv->testmode_sram.buff_addr +
e056a653 809 (DUMP_CHUNK_SIZE * idx));
306713fd
HK		 810 idx++;
811 cb->args[4] = idx;
812 return 0;
813 } else
814 return -EFAULT;
815
816 nla_put_failure:
817 return -ENOBUFS;
818}
819
e98a1939 820
4613e72d
CK		 821/* The testmode gnl message handler that takes the gnl message from the
822 * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
823 * invoke the corresponding handlers.
824 *
825 * This function is invoked when there is user space application sending
826 * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated
827 * by nl80211.
828 *
829 * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before
830 * dispatching it to the corresponding handler.
831 *
832 * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application;
833 * -ENOSYS is replied to the user application if the command is unknown;
834 * Otherwise, the command is dispatched to the respective handler.
835 *
836 * @hw: ieee80211_hw object that represents the device
837 * @data: pointer to user space message
838 * @len: length in byte of @data
839 */
ade4c649 840int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
4613e72d 841{
a6779278 842 struct nlattr *tb[IWL_TM_ATTR_MAX];
4613e72d
CK		 843 struct iwl_priv *priv = hw->priv;
844 int result;
845
846 result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
847 iwl_testmode_gnl_msg_policy);
848 if (result != 0) {
849 IWL_DEBUG_INFO(priv,
850 "Error parsing the gnl message : %d\n", result);
851 return result;
852 }
853
854 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
855 if (!tb[IWL_TM_ATTR_COMMAND]) {
856 IWL_DEBUG_INFO(priv, "Error finding testmode command type\n");
857 return -ENOMSG;
858 }
859 /* in case multiple accesses to the device happens */
6ac2f839 860 mutex_lock(&priv->shrd->mutex);
4613e72d
CK		 861
862 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
863 case IWL_TM_CMD_APP2DEV_UCODE:
864 IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n");
865 result = iwl_testmode_ucode(hw, tb);
866 break;
72bcacc2
HK		 867 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
868 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
869 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
870 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32:
871 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32:
4613e72d
CK		 872 IWL_DEBUG_INFO(priv, "testmode cmd to register\n");
873 result = iwl_testmode_reg(hw, tb);
874 break;
875 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
876 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
877 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
878 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
4babc358 879 case IWL_TM_CMD_APP2DEV_GET_EEPROM:
6489854b 880 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
d4af19fe 881 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
e1a38fe1 882 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
0bec12b8 883 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
4613e72d
CK		 884 IWL_DEBUG_INFO(priv, "testmode cmd to driver\n");
885 result = iwl_testmode_driver(hw, tb);
886 break;
7a4e5281
WYG		 887
888 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
889 case IWL_TM_CMD_APP2DEV_END_TRACE:
890 case IWL_TM_CMD_APP2DEV_READ_TRACE:
891 IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n");
892 result = iwl_testmode_trace(hw, tb);
893 break;
894
e98a1939
WYG		 895 case IWL_TM_CMD_APP2DEV_OWNERSHIP:
896 IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n");
897 result = iwl_testmode_ownership(hw, tb);
898 break;
899
306713fd
HK		 900 case IWL_TM_CMD_APP2DEV_READ_SRAM:
901 IWL_DEBUG_INFO(priv, "testmode sram read cmd to driver\n");
902 result = iwl_testmode_sram(hw, tb);
903 break;
904
4613e72d
CK		 905 default:
906 IWL_DEBUG_INFO(priv, "Unknown testmode command\n");
907 result = -ENOSYS;
908 break;
909 }
910
6ac2f839 911 mutex_unlock(&priv->shrd->mutex);
4613e72d
CK		 912 return result;
913}
eb64dca0 914
ade4c649 915int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
eb64dca0
WYG		 916 struct netlink_callback *cb,
917 void *data, int len)
918{
919 struct nlattr *tb[IWL_TM_ATTR_MAX];
920 struct iwl_priv *priv = hw->priv;
921 int result;
922 u32 cmd;
923
924 if (cb->args[3]) {
925 /* offset by 1 since commands start at 0 */
926 cmd = cb->args[3] - 1;
927 } else {
928 result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
929 iwl_testmode_gnl_msg_policy);
930 if (result) {
931 IWL_DEBUG_INFO(priv,
932 "Error parsing the gnl message : %d\n", result);
933 return result;
934 }
935
936 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
937 if (!tb[IWL_TM_ATTR_COMMAND]) {
938 IWL_DEBUG_INFO(priv,
939 "Error finding testmode command type\n");
940 return -ENOMSG;
941 }
942 cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
943 cb->args[3] = cmd + 1;
944 }
945
946 /* in case multiple accesses to the device happens */
6ac2f839 947 mutex_lock(&priv->shrd->mutex);
eb64dca0
WYG		 948 switch (cmd) {
949 case IWL_TM_CMD_APP2DEV_READ_TRACE:
950 IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n");
951 result = iwl_testmode_trace_dump(hw, tb, skb, cb);
952 break;
306713fd
HK		 953 case IWL_TM_CMD_APP2DEV_DUMP_SRAM:
954 IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n");
955 result = iwl_testmode_sram_dump(hw, tb, skb, cb);
956 break;
eb64dca0
WYG		 957 default:
958 result = -EINVAL;
959 break;
960 }
961
6ac2f839 962 mutex_unlock(&priv->shrd->mutex);
eb64dca0
WYG		 963 return result;
964}
Linux kernel - Deliverables
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