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iwlwifi: mvm: force protection for P2P
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
CommitLineData
8ca151b5
JB		 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 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8ca151b5
JB		 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
410dc5aa 25 * in the file called COPYING.
8ca151b5
JB		 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 *
51368bf7 33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8ca151b5
JB		 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 *****************************************************************************/
192c80a2
EG		 63#include <linux/vmalloc.h>
64
8ca151b5
JB		 65#include "mvm.h"
66#include "sta.h"
67#include "iwl-io.h"
820a1a50 68#include "debugfs.h"
4d075007 69#include "iwl-fw-error-dump.h"
8ca151b5 70
1fa3f57a 71static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
8ca151b5
JB		 72 size_t count, loff_t *ppos)
73{
8a0bd168 74 int ret;
8ca151b5
JB		 75 u32 scd_q_msk;
76
77 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
78 return -EIO;
79
8ca151b5
JB		 80 if (sscanf(buf, "%x", &scd_q_msk) != 1)
81 return -EINVAL;
82
83 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
84
85 mutex_lock(&mvm->mutex);
86 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
87 mutex_unlock(&mvm->mutex);
88
89 return ret;
90}
91
1fa3f57a 92static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
8ca151b5
JB		 93 size_t count, loff_t *ppos)
94{
f327b04c 95 struct iwl_mvm_sta *mvmsta;
8a0bd168 96 int sta_id, drain, ret;
8ca151b5
JB		 97
98 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
99 return -EIO;
100
8ca151b5
JB		 101 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
102 return -EINVAL;
60765a47
JB		 103 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
104 return -EINVAL;
105 if (drain < 0 || drain > 1)
106 return -EINVAL;
8ca151b5
JB		 107
108 mutex_lock(&mvm->mutex);
109
f327b04c
EG		 110 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
111
112 if (!mvmsta)
8ca151b5
JB		 113 ret = -ENOENT;
114 else
f327b04c 115 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
8ca151b5
JB		 116
117 mutex_unlock(&mvm->mutex);
118
119 return ret;
120}
121
1bd3cbc1
EG		 122static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file)
123{
124 struct iwl_mvm *mvm = inode->i_private;
125 int ret;
126
127 if (!mvm)
128 return -EINVAL;
129
130 mutex_lock(&mvm->mutex);
131 if (!mvm->fw_error_dump) {
132 ret = -ENODATA;
133 goto out;
134 }
135
136 file->private_data = mvm->fw_error_dump;
137 mvm->fw_error_dump = NULL;
1bd3cbc1
EG		 138 ret = 0;
139
140out:
141 mutex_unlock(&mvm->mutex);
142 return ret;
143}
144
145static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file,
146 char __user *user_buf,
147 size_t count, loff_t *ppos)
148{
48eb7b34
EG		 149 struct iwl_mvm_dump_ptrs *dump_ptrs = (void *)file->private_data;
150 ssize_t bytes_read = 0;
151 ssize_t bytes_read_trans = 0;
152
153 if (*ppos < dump_ptrs->op_mode_len)
154 bytes_read +=
155 simple_read_from_buffer(user_buf, count, ppos,
156 dump_ptrs->op_mode_ptr,
157 dump_ptrs->op_mode_len);
158
159 if (bytes_read < 0 || *ppos < dump_ptrs->op_mode_len)
160 return bytes_read;
161
162 if (dump_ptrs->trans_ptr) {
163 *ppos -= dump_ptrs->op_mode_len;
164 bytes_read_trans =
165 simple_read_from_buffer(user_buf + bytes_read,
166 count - bytes_read, ppos,
167 dump_ptrs->trans_ptr->data,
168 dump_ptrs->trans_ptr->len);
169 *ppos += dump_ptrs->op_mode_len;
170
171 if (bytes_read_trans >= 0)
172 bytes_read += bytes_read_trans;
173 else if (!bytes_read)
174 /* propagate the failure */
175 return bytes_read_trans;
176 }
177
178 return bytes_read;
1bd3cbc1 179
1bd3cbc1
EG		 180}
181
182static int iwl_dbgfs_fw_error_dump_release(struct inode *inode,
183 struct file *file)
184{
48eb7b34
EG		 185 struct iwl_mvm_dump_ptrs *dump_ptrs = (void *)file->private_data;
186
187 vfree(dump_ptrs->op_mode_ptr);
188 vfree(dump_ptrs->trans_ptr);
189 kfree(dump_ptrs);
1bd3cbc1
EG		 190
191 return 0;
192}
193
8ca151b5
JB		 194static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
195 size_t count, loff_t *ppos)
196{
197 struct iwl_mvm *mvm = file->private_data;
198 const struct fw_img *img;
d510342f
EG		 199 unsigned int ofs, len;
200 size_t ret;
8ca151b5
JB		 201 u8 *ptr;
202
60191d99
JB		 203 if (!mvm->ucode_loaded)
204 return -EINVAL;
205
8ca151b5 206 /* default is to dump the entire data segment */
d510342f
EG		 207 img = &mvm->fw->img[mvm->cur_ucode];
208 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
209 len = img->sec[IWL_UCODE_SECTION_DATA].len;
210
01e0efe3 211 if (mvm->dbgfs_sram_len) {
60191d99
JB		 212 ofs = mvm->dbgfs_sram_offset;
213 len = mvm->dbgfs_sram_len;
8ca151b5 214 }
8ca151b5 215
8ca151b5 216 ptr = kzalloc(len, GFP_KERNEL);
d510342f 217 if (!ptr)
8ca151b5 218 return -ENOMEM;
8ca151b5 219
60191d99 220 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
8ca151b5 221
d510342f 222 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
8ca151b5 223
8ca151b5
JB		 224 kfree(ptr);
225
226 return ret;
227}
228
1fa3f57a
JB		 229static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
230 size_t count, loff_t *ppos)
8ca151b5 231{
d510342f 232 const struct fw_img *img;
8ca151b5 233 u32 offset, len;
d510342f
EG		 234 u32 img_offset, img_len;
235
236 if (!mvm->ucode_loaded)
237 return -EINVAL;
238
239 img = &mvm->fw->img[mvm->cur_ucode];
240 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
241 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
8ca151b5 242
8ca151b5
JB		 243 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
244 if ((offset & 0x3) || (len & 0x3))
245 return -EINVAL;
d510342f
EG		 246
247 if (offset + len > img_offset + img_len)
248 return -EINVAL;
249
8ca151b5
JB		 250 mvm->dbgfs_sram_offset = offset;
251 mvm->dbgfs_sram_len = len;
252 } else {
253 mvm->dbgfs_sram_offset = 0;
254 mvm->dbgfs_sram_len = 0;
255 }
256
257 return count;
258}
259
7280d1f0
MG		 260static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
261 char __user *user_buf,
262 size_t count, loff_t *ppos)
263{
264 struct iwl_mvm *mvm = file->private_data;
265 char buf[16];
266 int pos;
267
268 if (!mvm->temperature_test)
269 pos = scnprintf(buf , sizeof(buf), "disabled\n");
270 else
271 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
272
273 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
274}
275
276/*
277 * Set NIC Temperature
278 * Cause the driver to ignore the actual NIC temperature reported by the FW
279 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
280 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
281 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
282 */
283static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
284 char *buf, size_t count,
285 loff_t *ppos)
286{
287 int temperature;
288
289 if (kstrtoint(buf, 10, &temperature))
290 return -EINVAL;
291 /* not a legal temperature */
292 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
293 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
294 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
295 return -EINVAL;
296
297 mutex_lock(&mvm->mutex);
298 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
299 mvm->temperature_test = false;
300 } else {
301 mvm->temperature_test = true;
302 mvm->temperature = temperature;
303 }
304 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
305 mvm->temperature_test ? "En" : "Dis" ,
306 mvm->temperature);
307 /* handle the temperature change */
308 iwl_mvm_tt_handler(mvm);
309 mutex_unlock(&mvm->mutex);
310
311 return count;
312}
313
8ca151b5
JB		 314static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
315 size_t count, loff_t *ppos)
316{
317 struct iwl_mvm *mvm = file->private_data;
318 struct ieee80211_sta *sta;
319 char buf[400];
320 int i, pos = 0, bufsz = sizeof(buf);
321
322 mutex_lock(&mvm->mutex);
323
324 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
325 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
326 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
327 lockdep_is_held(&mvm->mutex));
328 if (!sta)
329 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
330 else if (IS_ERR(sta))
331 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
332 PTR_ERR(sta));
333 else
334 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
335 sta->addr);
336 }
337
338 mutex_unlock(&mvm->mutex);
339
340 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
341}
342
64b928c4
AB		 343static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
344 char __user *user_buf,
8ca151b5
JB		 345 size_t count, loff_t *ppos)
346{
347 struct iwl_mvm *mvm = file->private_data;
64b928c4
AB		 348 char buf[64];
349 int bufsz = sizeof(buf);
350 int pos = 0;
8ca151b5 351
64b928c4
AB		 352 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
353 mvm->disable_power_off);
354 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
355 mvm->disable_power_off_d3);
8ca151b5 356
64b928c4 357 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
8ca151b5
JB		 358}
359
1fa3f57a 360static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
64b928c4 361 size_t count, loff_t *ppos)
8ca151b5 362{
1fa3f57a 363 int ret, val;
64b928c4
AB		 364
365 if (!mvm->ucode_loaded)
366 return -EIO;
8ca151b5 367
64b928c4
AB		 368 if (!strncmp("disable_power_off_d0=", buf, 21)) {
369 if (sscanf(buf + 21, "%d", &val) != 1)
370 return -EINVAL;
371 mvm->disable_power_off = val;
372 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
373 if (sscanf(buf + 21, "%d", &val) != 1)
374 return -EINVAL;
375 mvm->disable_power_off_d3 = val;
376 } else {
8ca151b5 377 return -EINVAL;
64b928c4 378 }
8ca151b5 379
64b928c4 380 mutex_lock(&mvm->mutex);
c1cb92fc 381 ret = iwl_mvm_power_update_device(mvm);
64b928c4 382 mutex_unlock(&mvm->mutex);
8ca151b5 383
64b928c4 384 return ret ?: count;
8ca151b5
JB		 385}
386
10942342
EG		 387#define BT_MBOX_MSG(_notif, _num, _field) \
388 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
389 >> BT_MBOX##_num##_##_field##_POS)
390
391
392#define BT_MBOX_PRINT(_num, _field, _end) \
393 pos += scnprintf(buf + pos, bufsz - pos, \
394 "\t%s: %d%s", \
395 #_field, \
396 BT_MBOX_MSG(notif, _num, _field), \
397 true ? "\n" : ", ");
398
160be571
EG		 399static
400int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
401 int pos, int bufsz)
10942342 402{
160be571 403 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
10942342 404
160be571
EG		 405 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
406 BT_MBOX_PRINT(0, LE_PROF1, false);
407 BT_MBOX_PRINT(0, LE_PROF2, false);
408 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
409 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
410 BT_MBOX_PRINT(0, INBAND_S, false);
411 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
412 BT_MBOX_PRINT(0, LE_SCAN, false);
413 BT_MBOX_PRINT(0, LE_ADV, false);
414 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
415 BT_MBOX_PRINT(0, OPEN_CON_1, true);
10942342 416
160be571
EG		 417 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
418
419 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
420 BT_MBOX_PRINT(1, IP_SR, false);
421 BT_MBOX_PRINT(1, LE_MSTR, false);
422 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
423 BT_MBOX_PRINT(1, MSG_TYPE, false);
424 BT_MBOX_PRINT(1, SSN, true);
425
426 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
427
428 BT_MBOX_PRINT(2, SNIFF_ACT, false);
429 BT_MBOX_PRINT(2, PAG, false);
430 BT_MBOX_PRINT(2, INQUIRY, false);
431 BT_MBOX_PRINT(2, CONN, false);
432 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
433 BT_MBOX_PRINT(2, DISC, false);
434 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
435 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
436 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
437 BT_MBOX_PRINT(2, SCO_DURATION, true);
10942342 438
160be571
EG		 439 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
440
441 BT_MBOX_PRINT(3, SCO_STATE, false);
442 BT_MBOX_PRINT(3, SNIFF_STATE, false);
443 BT_MBOX_PRINT(3, A2DP_STATE, false);
444 BT_MBOX_PRINT(3, ACL_STATE, false);
445 BT_MBOX_PRINT(3, MSTR_STATE, false);
446 BT_MBOX_PRINT(3, OBX_STATE, false);
447 BT_MBOX_PRINT(3, OPEN_CON_2, false);
448 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
449 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
450 BT_MBOX_PRINT(3, INBAND_P, false);
451 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
452 BT_MBOX_PRINT(3, SSN_2, false);
453 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
454
455 return pos;
456}
457
458static
459int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
460 char *buf, int pos, int bufsz)
461{
10942342
EG		 462 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
463
464 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
465 BT_MBOX_PRINT(0, LE_PROF1, false);
466 BT_MBOX_PRINT(0, LE_PROF2, false);
467 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
468 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
469 BT_MBOX_PRINT(0, INBAND_S, false);
470 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
471 BT_MBOX_PRINT(0, LE_SCAN, false);
472 BT_MBOX_PRINT(0, LE_ADV, false);
473 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
474 BT_MBOX_PRINT(0, OPEN_CON_1, true);
475
476 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
477
478 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
479 BT_MBOX_PRINT(1, IP_SR, false);
480 BT_MBOX_PRINT(1, LE_MSTR, false);
481 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
482 BT_MBOX_PRINT(1, MSG_TYPE, false);
483 BT_MBOX_PRINT(1, SSN, true);
484
485 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
486
487 BT_MBOX_PRINT(2, SNIFF_ACT, false);
488 BT_MBOX_PRINT(2, PAG, false);
489 BT_MBOX_PRINT(2, INQUIRY, false);
490 BT_MBOX_PRINT(2, CONN, false);
491 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
492 BT_MBOX_PRINT(2, DISC, false);
493 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
494 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
495 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
496 BT_MBOX_PRINT(2, SCO_DURATION, true);
497
498 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
499
500 BT_MBOX_PRINT(3, SCO_STATE, false);
501 BT_MBOX_PRINT(3, SNIFF_STATE, false);
502 BT_MBOX_PRINT(3, A2DP_STATE, false);
503 BT_MBOX_PRINT(3, ACL_STATE, false);
504 BT_MBOX_PRINT(3, MSTR_STATE, false);
505 BT_MBOX_PRINT(3, OBX_STATE, false);
506 BT_MBOX_PRINT(3, OPEN_CON_2, false);
507 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
508 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
509 BT_MBOX_PRINT(3, INBAND_P, false);
510 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
511 BT_MBOX_PRINT(3, SSN_2, false);
512 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
513
160be571
EG		 514 return pos;
515}
516
517static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
518 size_t count, loff_t *ppos)
519{
520 struct iwl_mvm *mvm = file->private_data;
521 char *buf;
522 int ret, pos = 0, bufsz = sizeof(char) * 1024;
523
524 buf = kmalloc(bufsz, GFP_KERNEL);
525 if (!buf)
526 return -ENOMEM;
527
528 mutex_lock(&mvm->mutex);
529
530 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
531 struct iwl_bt_coex_profile_notif_old *notif =
532 &mvm->last_bt_notif_old;
533
534 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
535
536 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
537 notif->bt_ci_compliance);
538 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
539 le32_to_cpu(notif->primary_ch_lut));
540 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
541 le32_to_cpu(notif->secondary_ch_lut));
542 pos += scnprintf(buf+pos,
543 bufsz-pos, "bt_activity_grading = %d\n",
544 le32_to_cpu(notif->bt_activity_grading));
545 pos += scnprintf(buf+pos, bufsz-pos,
546 "antenna isolation = %d CORUN LUT index = %d\n",
547 mvm->last_ant_isol, mvm->last_corun_lut);
548 } else {
549 struct iwl_bt_coex_profile_notif *notif =
550 &mvm->last_bt_notif;
551
552 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
553
554 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
555 notif->bt_ci_compliance);
556 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
557 le32_to_cpu(notif->primary_ch_lut));
558 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
559 le32_to_cpu(notif->secondary_ch_lut));
560 pos += scnprintf(buf+pos,
561 bufsz-pos, "bt_activity_grading = %d\n",
562 le32_to_cpu(notif->bt_activity_grading));
563 pos += scnprintf(buf+pos, bufsz-pos,
564 "antenna isolation = %d CORUN LUT index = %d\n",
565 mvm->last_ant_isol, mvm->last_corun_lut);
566 }
10942342
EG		 567
568 mutex_unlock(&mvm->mutex);
569
570 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
571 kfree(buf);
572
573 return ret;
574}
575#undef BT_MBOX_PRINT
576
2de13cae
EG		 577static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
578 size_t count, loff_t *ppos)
579{
580 struct iwl_mvm *mvm = file->private_data;
2de13cae
EG		 581 char buf[256];
582 int bufsz = sizeof(buf);
583 int pos = 0;
584
585 mutex_lock(&mvm->mutex);
586
160be571
EG		 587 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
588 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
589
590 pos += scnprintf(buf+pos, bufsz-pos,
591 "Channel inhibition CMD\n");
592 pos += scnprintf(buf+pos, bufsz-pos,
593 "\tPrimary Channel Bitmap 0x%016llx\n",
594 le64_to_cpu(cmd->bt_primary_ci));
595 pos += scnprintf(buf+pos, bufsz-pos,
596 "\tSecondary Channel Bitmap 0x%016llx\n",
597 le64_to_cpu(cmd->bt_secondary_ci));
598
599 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
600 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
1459f269 601 iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[0]]);
160be571 602 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
1459f269 603 iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[0]]);
160be571
EG		 604
605 } else {
606 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
607
608 pos += scnprintf(buf+pos, bufsz-pos,
609 "Channel inhibition CMD\n");
610 pos += scnprintf(buf+pos, bufsz-pos,
611 "\tPrimary Channel Bitmap 0x%016llx\n",
612 le64_to_cpu(cmd->bt_primary_ci));
613 pos += scnprintf(buf+pos, bufsz-pos,
614 "\tSecondary Channel Bitmap 0x%016llx\n",
615 le64_to_cpu(cmd->bt_secondary_ci));
616
617 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
1459f269
EG		 618 pos += scnprintf(buf+pos, bufsz-pos,
619 "\tPrimary: ACK Kill Mask 0x%08x\n",
620 iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[0]]);
621 pos += scnprintf(buf+pos, bufsz-pos,
622 "\tPrimary: CTS Kill Mask 0x%08x\n",
623 iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[0]]);
624 pos += scnprintf(buf+pos, bufsz-pos,
625 "\tSecondary: ACK Kill Mask 0x%08x\n",
626 iwl_bt_ctl_kill_msk[mvm->bt_ack_kill_msk[1]]);
627 pos += scnprintf(buf+pos, bufsz-pos,
628 "\tSecondary: CTS Kill Mask 0x%08x\n",
629 iwl_bt_ctl_kill_msk[mvm->bt_cts_kill_msk[1]]);
630
160be571 631 }
2de13cae
EG		 632
633 mutex_unlock(&mvm->mutex);
634
635 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
636}
637
cdb00563
EG		 638static ssize_t
639iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
640 size_t count, loff_t *ppos)
641{
642 u32 bt_tx_prio;
643
644 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
645 return -EINVAL;
646 if (bt_tx_prio > 4)
647 return -EINVAL;
648
649 mvm->bt_tx_prio = bt_tx_prio;
650
651 return count;
652}
653
a39979a8
EG		 654static ssize_t
655iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
656 size_t count, loff_t *ppos)
657{
658 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
659 [BT_FORCE_ANT_DIS] = "dis",
660 [BT_FORCE_ANT_AUTO] = "auto",
661 [BT_FORCE_ANT_BT] = "bt",
662 [BT_FORCE_ANT_WIFI] = "wifi",
663 };
664 int ret, bt_force_ant_mode;
665
666 for (bt_force_ant_mode = 0;
667 bt_force_ant_mode < ARRAY_SIZE(modes_str);
668 bt_force_ant_mode++) {
669 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
670 break;
671 }
672
673 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
674 return -EINVAL;
675
676 ret = 0;
677 mutex_lock(&mvm->mutex);
678 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
679 goto out;
680
681 mvm->bt_force_ant_mode = bt_force_ant_mode;
682 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
683 modes_str[mvm->bt_force_ant_mode]);
684 ret = iwl_send_bt_init_conf(mvm);
685
686out:
687 mutex_unlock(&mvm->mutex);
688 return ret ?: count;
689}
690
3848ab66
MG		 691#define PRINT_STATS_LE32(_str, _val) \
692 pos += scnprintf(buf + pos, bufsz - pos, \
693 fmt_table, _str, \
694 le32_to_cpu(_val))
695
696static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
697 char __user *user_buf, size_t count,
698 loff_t *ppos)
699{
700 struct iwl_mvm *mvm = file->private_data;
701 static const char *fmt_table = "\t%-30s %10u\n";
702 static const char *fmt_header = "%-32s\n";
703 int pos = 0;
704 char *buf;
705 int ret;
3f617281
LC		 706 /* 43 is the size of each data line, 33 is the size of each header */
707 size_t bufsz =
708 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
709 (4 * 33) + 1;
710
3848ab66
MG		 711 struct mvm_statistics_rx_phy *ofdm;
712 struct mvm_statistics_rx_phy *cck;
713 struct mvm_statistics_rx_non_phy *general;
714 struct mvm_statistics_rx_ht_phy *ht;
715
716 buf = kzalloc(bufsz, GFP_KERNEL);
717 if (!buf)
718 return -ENOMEM;
719
720 mutex_lock(&mvm->mutex);
721
722 ofdm = &mvm->rx_stats.ofdm;
723 cck = &mvm->rx_stats.cck;
724 general = &mvm->rx_stats.general;
725 ht = &mvm->rx_stats.ofdm_ht;
726
727 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
728 "Statistics_Rx - OFDM");
729 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
730 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
731 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
732 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
733 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
734 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
735 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
736 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
737 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
738 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
739 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
740 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
741 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
742 ofdm->rxe_frame_limit_overrun);
743 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
744 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
745 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
746 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
747 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
748 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
749 PRINT_STATS_LE32("reserved", ofdm->reserved);
750
751 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
752 "Statistics_Rx - CCK");
753 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
754 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
755 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
756 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
757 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
758 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
759 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
760 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
761 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
762 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
763 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
764 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
765 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
766 cck->rxe_frame_limit_overrun);
767 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
768 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
769 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
770 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
771 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
772 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
773 PRINT_STATS_LE32("reserved", cck->reserved);
774
775 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
776 "Statistics_Rx - GENERAL");
777 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
778 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
779 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
780 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
781 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
782 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
783 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
784 PRINT_STATS_LE32("adc_rx_saturation_time",
785 general->adc_rx_saturation_time);
786 PRINT_STATS_LE32("ina_detection_search_time",
787 general->ina_detection_search_time);
788 PRINT_STATS_LE32("beacon_silence_rssi_a",
789 general->beacon_silence_rssi_a);
790 PRINT_STATS_LE32("beacon_silence_rssi_b",
791 general->beacon_silence_rssi_b);
792 PRINT_STATS_LE32("beacon_silence_rssi_c",
793 general->beacon_silence_rssi_c);
794 PRINT_STATS_LE32("interference_data_flag",
795 general->interference_data_flag);
796 PRINT_STATS_LE32("channel_load", general->channel_load);
797 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
798 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
799 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
800 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
801 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
802 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
803 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
804 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
3f617281 805 PRINT_STATS_LE32("mac_id", general->mac_id);
3848ab66
MG		 806 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
807
808 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
809 "Statistics_Rx - HT");
810 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
811 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
812 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
813 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
814 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
815 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
816 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
817 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
818 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
819 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
820
821 mutex_unlock(&mvm->mutex);
822
823 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
824 kfree(buf);
825
826 return ret;
827}
828#undef PRINT_STAT_LE32
829
5fc0f76c
ES		 830static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
831 char __user *user_buf, size_t count,
832 loff_t *ppos,
833 struct iwl_mvm_frame_stats *stats)
834{
f754b5ca
ES		 835 char *buff, *pos, *endpos;
836 int idx, i;
5fc0f76c 837 int ret;
f754b5ca 838 static const size_t bufsz = 1024;
5fc0f76c
ES		 839
840 buff = kmalloc(bufsz, GFP_KERNEL);
841 if (!buff)
842 return -ENOMEM;
843
844 spin_lock_bh(&mvm->drv_stats_lock);
f754b5ca
ES		 845
846 pos = buff;
847 endpos = pos + bufsz;
848
849 pos += scnprintf(pos, endpos - pos,
5fc0f76c
ES		 850 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
851 stats->legacy_frames,
852 stats->ht_frames,
853 stats->vht_frames);
f754b5ca 854 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
5fc0f76c
ES		 855 stats->bw_20_frames,
856 stats->bw_40_frames,
857 stats->bw_80_frames);
f754b5ca 858 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
5fc0f76c
ES		 859 stats->ngi_frames,
860 stats->sgi_frames);
f754b5ca 861 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
5fc0f76c
ES		 862 stats->siso_frames,
863 stats->mimo2_frames);
f754b5ca 864 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
5fc0f76c
ES		 865 stats->fail_frames,
866 stats->success_frames);
f754b5ca 867 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
5fc0f76c 868 stats->agg_frames);
f754b5ca 869 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
5fc0f76c 870 stats->ampdu_count);
f754b5ca 871 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
5fc0f76c
ES		 872 stats->ampdu_count > 0 ?
873 (stats->agg_frames / stats->ampdu_count) : 0);
874
f754b5ca 875 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
5fc0f76c
ES		 876
877 idx = stats->last_frame_idx - 1;
878 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
879 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
880 if (stats->last_rates[idx] == 0)
881 continue;
f754b5ca 882 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
5fc0f76c 883 (int)(ARRAY_SIZE(stats->last_rates) - i));
f754b5ca 884 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
5fc0f76c
ES		 885 }
886 spin_unlock_bh(&mvm->drv_stats_lock);
887
f754b5ca 888 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
5fc0f76c
ES		 889 kfree(buff);
890
891 return ret;
892}
893
894static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
895 char __user *user_buf, size_t count,
896 loff_t *ppos)
897{
898 struct iwl_mvm *mvm = file->private_data;
899
900 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
901 &mvm->drv_rx_stats);
902}
903
1fa3f57a 904static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
490953ac
EG		 905 size_t count, loff_t *ppos)
906{
490953ac
EG		 907 int ret;
908
490953ac
EG		 909 mutex_lock(&mvm->mutex);
910
291aa7c4
EH		 911 /* allow one more restart that we're provoking here */
912 if (mvm->restart_fw >= 0)
913 mvm->restart_fw++;
914
490953ac 915 /* take the return value to make compiler happy - it will fail anyway */
a1022927 916 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
490953ac
EG		 917
918 mutex_unlock(&mvm->mutex);
919
490953ac
EG		 920 return count;
921}
922
1fa3f57a 923static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
119663c3
AB		 924 size_t count, loff_t *ppos)
925{
576eeee9
EP		 926 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
927 if (ret)
928 return ret;
929
4c9706dc 930 iwl_force_nmi(mvm->trans);
119663c3 931
576eeee9
EP		 932 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
933
119663c3
AB		 934 return count;
935}
936
91b05d10
OG		 937static ssize_t
938iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
939 char __user *user_buf,
940 size_t count, loff_t *ppos)
941{
942 struct iwl_mvm *mvm = file->private_data;
943 int pos = 0;
944 char buf[32];
945 const size_t bufsz = sizeof(buf);
946
947 /* print which antennas were set for the scan command by the user */
948 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
949 if (mvm->scan_rx_ant & ANT_A)
950 pos += scnprintf(buf + pos, bufsz - pos, "A");
951 if (mvm->scan_rx_ant & ANT_B)
952 pos += scnprintf(buf + pos, bufsz - pos, "B");
953 if (mvm->scan_rx_ant & ANT_C)
954 pos += scnprintf(buf + pos, bufsz - pos, "C");
955 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
956
957 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
958}
959
960static ssize_t
1fa3f57a 961iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
91b05d10
OG		 962 size_t count, loff_t *ppos)
963{
91b05d10
OG		 964 u8 scan_rx_ant;
965
91b05d10
OG		 966 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
967 return -EINVAL;
968 if (scan_rx_ant > ANT_ABC)
969 return -EINVAL;
4ed735e7 970 if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
91b05d10
OG		 971 return -EINVAL;
972
91b05d10
OG		 973 mvm->scan_rx_ant = scan_rx_ant;
974
975 return count;
976}
977
de06a59e
EP		 978#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
979#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
980static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
981 char __user *user_buf,
982 size_t count, loff_t *ppos)
983{
984 struct iwl_mvm *mvm = file->private_data;
985 struct iwl_bcast_filter_cmd cmd;
986 const struct iwl_fw_bcast_filter *filter;
987 char *buf;
988 int bufsz = 1024;
989 int i, j, pos = 0;
990 ssize_t ret;
991
992 buf = kzalloc(bufsz, GFP_KERNEL);
993 if (!buf)
994 return -ENOMEM;
995
996 mutex_lock(&mvm->mutex);
997 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
998 ADD_TEXT("None\n");
999 mutex_unlock(&mvm->mutex);
1000 goto out;
1001 }
1002 mutex_unlock(&mvm->mutex);
1003
1004 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1005 filter = &cmd.filters[i];
1006
1007 ADD_TEXT("Filter [%d]:\n", i);
1008 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1009 ADD_TEXT("\tFrame Type: %s\n",
1010 filter->frame_type ? "IPv4" : "Generic");
1011
1012 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1013 const struct iwl_fw_bcast_filter_attr *attr;
1014
1015 attr = &filter->attrs[j];
1016 if (!attr->mask)
1017 break;
1018
1019 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1020 j, attr->offset,
1021 attr->offset_type ? "IP End" :
1022 "Payload Start",
1023 be32_to_cpu(attr->mask),
1024 be32_to_cpu(attr->val),
1025 le16_to_cpu(attr->reserved1));
1026 }
1027 }
1028out:
1029 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1030 kfree(buf);
1031 return ret;
1032}
1033
1034static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1035 size_t count, loff_t *ppos)
1036{
1037 int pos, next_pos;
1038 struct iwl_fw_bcast_filter filter = {};
1039 struct iwl_bcast_filter_cmd cmd;
1040 u32 filter_id, attr_id, mask, value;
1041 int err = 0;
1042
1043 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1044 &filter.frame_type, &pos) != 3)
1045 return -EINVAL;
1046
1047 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1048 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1049 return -EINVAL;
1050
1051 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1052 attr_id++) {
1053 struct iwl_fw_bcast_filter_attr *attr =
1054 &filter.attrs[attr_id];
1055
1056 if (pos >= count)
1057 break;
1058
1059 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1060 &attr->offset, &attr->offset_type,
1061 &mask, &value, &next_pos) != 4)
1062 return -EINVAL;
1063
1064 attr->mask = cpu_to_be32(mask);
1065 attr->val = cpu_to_be32(value);
1066 if (mask)
1067 filter.num_attrs++;
1068
1069 pos += next_pos;
1070 }
1071
1072 mutex_lock(&mvm->mutex);
1073 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1074 &filter, sizeof(filter));
1075
1076 /* send updated bcast filtering configuration */
1077 if (mvm->dbgfs_bcast_filtering.override &&
1078 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
a1022927 1079 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
de06a59e
EP		 1080 sizeof(cmd), &cmd);
1081 mutex_unlock(&mvm->mutex);
1082
1083 return err ?: count;
1084}
1085
1086static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1087 char __user *user_buf,
1088 size_t count, loff_t *ppos)
1089{
1090 struct iwl_mvm *mvm = file->private_data;
1091 struct iwl_bcast_filter_cmd cmd;
1092 char *buf;
1093 int bufsz = 1024;
1094 int i, pos = 0;
1095 ssize_t ret;
1096
1097 buf = kzalloc(bufsz, GFP_KERNEL);
1098 if (!buf)
1099 return -ENOMEM;
1100
1101 mutex_lock(&mvm->mutex);
1102 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1103 ADD_TEXT("None\n");
1104 mutex_unlock(&mvm->mutex);
1105 goto out;
1106 }
1107 mutex_unlock(&mvm->mutex);
1108
1109 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1110 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1111
1112 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1113 i, mac->default_discard, mac->attached_filters);
1114 }
1115out:
1116 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1117 kfree(buf);
1118 return ret;
1119}
1120
1121static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1122 char *buf, size_t count,
1123 loff_t *ppos)
1124{
1125 struct iwl_bcast_filter_cmd cmd;
1126 struct iwl_fw_bcast_mac mac = {};
1127 u32 mac_id, attached_filters;
1128 int err = 0;
1129
1130 if (!mvm->bcast_filters)
1131 return -ENOENT;
1132
1133 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1134 &attached_filters) != 3)
1135 return -EINVAL;
1136
1137 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1138 mac.default_discard > 1 ||
1139 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1140 return -EINVAL;
1141
1142 mac.attached_filters = cpu_to_le16(attached_filters);
1143
1144 mutex_lock(&mvm->mutex);
1145 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1146 &mac, sizeof(mac));
1147
1148 /* send updated bcast filtering configuration */
1149 if (mvm->dbgfs_bcast_filtering.override &&
1150 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
a1022927 1151 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
de06a59e
EP		 1152 sizeof(cmd), &cmd);
1153 mutex_unlock(&mvm->mutex);
1154
1155 return err ?: count;
1156}
1157#endif
1158
afc66bb7 1159#ifdef CONFIG_PM_SLEEP
1fa3f57a 1160static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
afc66bb7
JB		 1161 size_t count, loff_t *ppos)
1162{
afc66bb7
JB		 1163 int store;
1164
afc66bb7
JB		 1165 if (sscanf(buf, "%d", &store) != 1)
1166 return -EINVAL;
1167
1168 mvm->store_d3_resume_sram = store;
1169
1170 return count;
1171}
1172
1173static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1174 size_t count, loff_t *ppos)
1175{
1176 struct iwl_mvm *mvm = file->private_data;
1177 const struct fw_img *img;
1178 int ofs, len, pos = 0;
1179 size_t bufsz, ret;
1180 char *buf;
1181 u8 *ptr = mvm->d3_resume_sram;
1182
1183 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1184 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1185
1186 bufsz = len * 4 + 256;
1187 buf = kzalloc(bufsz, GFP_KERNEL);
1188 if (!buf)
1189 return -ENOMEM;
1190
1191 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1192 mvm->store_d3_resume_sram ? "en" : "dis");
1193
1194 if (ptr) {
1195 for (ofs = 0; ofs < len; ofs += 16) {
1196 pos += scnprintf(buf + pos, bufsz - pos,
1197 "0x%.4x ", ofs);
1198 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
1199 bufsz - pos, false);
1200 pos += strlen(buf + pos);
1201 if (bufsz - pos > 0)
1202 buf[pos++] = '\n';
1203 }
1204 } else {
1205 pos += scnprintf(buf + pos, bufsz - pos,
1206 "(no data captured)\n");
1207 }
1208
1209 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1210
1211 kfree(buf);
1212
1213 return ret;
1214}
1215#endif
1216
576eeee9
EP		 1217#define PRINT_MVM_REF(ref) do { \
1218 if (mvm->refs[ref]) \
1219 pos += scnprintf(buf + pos, bufsz - pos, \
1220 "\t(0x%lx): %d %s\n", \
1221 BIT(ref), mvm->refs[ref], #ref); \
70d6babb
EP		 1222} while (0)
1223
1224static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1225 char __user *user_buf,
1226 size_t count, loff_t *ppos)
1227{
1228 struct iwl_mvm *mvm = file->private_data;
576eeee9 1229 int i, pos = 0;
70d6babb
EP		 1230 char buf[256];
1231 const size_t bufsz = sizeof(buf);
576eeee9
EP		 1232 u32 refs = 0;
1233
1234 for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1235 if (mvm->refs[i])
1236 refs |= BIT(i);
70d6babb 1237
576eeee9
EP		 1238 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1239 refs);
70d6babb
EP		 1240
1241 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1242 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1243 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1244 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1245 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
0eb83653 1246 PRINT_MVM_REF(IWL_MVM_REF_USER);
d15a747f 1247 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
70d6babb
EP		 1248
1249 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1250}
1251
0eb83653
EP		 1252static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1253 size_t count, loff_t *ppos)
1254{
1255 unsigned long value;
1256 int ret;
1257 bool taken;
1258
1259 ret = kstrtoul(buf, 10, &value);
1260 if (ret < 0)
1261 return ret;
1262
1263 mutex_lock(&mvm->mutex);
1264
576eeee9 1265 taken = mvm->refs[IWL_MVM_REF_USER];
0eb83653
EP		 1266 if (value == 1 && !taken)
1267 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1268 else if (value == 0 && taken)
1269 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1270 else
1271 ret = -EINVAL;
1272
1273 mutex_unlock(&mvm->mutex);
1274
1275 if (ret < 0)
1276 return ret;
1277 return count;
1278}
1279
1fa3f57a
JB		 1280#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1281 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1282#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1283 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
de06a59e
EP		 1284#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1285 if (!debugfs_create_file(alias, mode, parent, mvm, \
8ca151b5
JB		 1286 &iwl_dbgfs_##name##_ops)) \
1287 goto err; \
1288 } while (0)
de06a59e
EP		 1289#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1290 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
8ca151b5 1291
f3c221f6
EP		 1292static ssize_t
1293iwl_dbgfs_prph_reg_read(struct file *file,
1294 char __user *user_buf,
1295 size_t count, loff_t *ppos)
1296{
1297 struct iwl_mvm *mvm = file->private_data;
1298 int pos = 0;
1299 char buf[32];
1300 const size_t bufsz = sizeof(buf);
576eeee9 1301 int ret;
f3c221f6
EP		 1302
1303 if (!mvm->dbgfs_prph_reg_addr)
1304 return -EINVAL;
1305
576eeee9
EP		 1306 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1307 if (ret)
1308 return ret;
1309
f3c221f6
EP		 1310 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1311 mvm->dbgfs_prph_reg_addr,
1312 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1313
576eeee9
EP		 1314 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1315
f3c221f6
EP		 1316 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1317}
1318
1319static ssize_t
1320iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1321 size_t count, loff_t *ppos)
1322{
1323 u8 args;
1324 u32 value;
576eeee9 1325 int ret;
f3c221f6
EP		 1326
1327 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1328 /* if we only want to set the reg address - nothing more to do */
1329 if (args == 1)
1330 goto out;
1331
1332 /* otherwise, make sure we have both address and value */
1333 if (args != 2)
1334 return -EINVAL;
1335
576eeee9
EP		 1336 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1337 if (ret)
1338 return ret;
1339
f3c221f6 1340 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
576eeee9
EP		 1341
1342 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
f3c221f6
EP		 1343out:
1344 return count;
1345}
1346
1347MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1348
8ca151b5 1349/* Device wide debugfs entries */
1fa3f57a
JB		 1350MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1351MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1352MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
7280d1f0 1353MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
8ca151b5 1354MVM_DEBUGFS_READ_FILE_OPS(stations);
10942342 1355MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
2de13cae 1356MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1fa3f57a 1357MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
3848ab66 1358MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
5fc0f76c 1359MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1fa3f57a
JB		 1360MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1361MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
cdb00563 1362MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
a39979a8 1363MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1fa3f57a 1364MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
0eb83653 1365MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
91b05d10 1366
1bd3cbc1 1367static const struct file_operations iwl_dbgfs_fw_error_dump_ops = {
3a58d98e
EG		 1368 .open = iwl_dbgfs_fw_error_dump_open,
1369 .read = iwl_dbgfs_fw_error_dump_read,
1370 .release = iwl_dbgfs_fw_error_dump_release,
1bd3cbc1
EG		 1371};
1372
de06a59e
EP		 1373#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1374MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1375MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1376#endif
1377
afc66bb7 1378#ifdef CONFIG_PM_SLEEP
1fa3f57a 1379MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
afc66bb7 1380#endif
8ca151b5
JB		 1381
1382int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1383{
de06a59e 1384 struct dentry *bcast_dir __maybe_unused;
8ca151b5
JB		 1385 char buf[100];
1386
d07913aa
JB		 1387 spin_lock_init(&mvm->drv_stats_lock);
1388
8ca151b5
JB		 1389 mvm->debugfs_dir = dbgfs_dir;
1390
1391 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1392 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1393 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
7280d1f0
MG		 1394 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1395 S_IWUSR | S_IRUSR);
8ca151b5 1396 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1bd3cbc1 1397 MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR);
10942342 1398 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
2de13cae 1399 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
639eabad
EG		 1400 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1401 S_IRUSR | S_IWUSR);
3848ab66 1402 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
5fc0f76c 1403 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
490953ac 1404 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
119663c3 1405 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
cdb00563 1406 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
a39979a8 1407 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
91b05d10
OG		 1408 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1409 S_IWUSR | S_IRUSR);
f3c221f6 1410 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
0eb83653 1411 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
de06a59e
EP		 1412
1413#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1414 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1415 bcast_dir = debugfs_create_dir("bcast_filtering",
1416 mvm->debugfs_dir);
1417 if (!bcast_dir)
1418 goto err;
1419
1420 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1421 bcast_dir,
1422 &mvm->dbgfs_bcast_filtering.override))
1423 goto err;
1424
1425 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1426 bcast_dir, S_IWUSR | S_IRUSR);
1427 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1428 bcast_dir, S_IWUSR | S_IRUSR);
1429 }
1430#endif
1431
afc66bb7
JB		 1432#ifdef CONFIG_PM_SLEEP
1433 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
debff618 1434 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
b0114714
JB		 1435 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1436 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1437 goto err;
afc66bb7 1438#endif
8ca151b5 1439
086f7368
EG		 1440 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1441 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1442 goto err;
1443 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1444 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1445 goto err;
1446 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1447 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1448 goto err;
1449 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1450 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1451 goto err;
1452
8ca151b5
JB		 1453 /*
1454 * Create a symlink with mac80211. It will be removed when mac80211
1455 * exists (before the opmode exists which removes the target.)
1456 */
1457 snprintf(buf, 100, "../../%s/%s",
1458 dbgfs_dir->d_parent->d_parent->d_name.name,
1459 dbgfs_dir->d_parent->d_name.name);
1460 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1461 goto err;
1462
1463 return 0;
1464err:
1465 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1466 return -ENOMEM;
1467}
Linux kernel - Deliverables
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