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ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / debugfs.c
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) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <linuxwifi@intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65 #include <linux/vmalloc.h>
66
67 #include "mvm.h"
68 #include "fw-dbg.h"
69 #include "sta.h"
70 #include "iwl-io.h"
71 #include "debugfs.h"
72 #include "iwl-fw-error-dump.h"
73
74 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
75 size_t count, loff_t *ppos)
76 {
77 int ret;
78 u32 scd_q_msk;
79
80 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
81 return -EIO;
82
83 if (sscanf(buf, "%x", &scd_q_msk) != 1)
84 return -EINVAL;
85
86 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
87
88 mutex_lock(&mvm->mutex);
89 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
90 mutex_unlock(&mvm->mutex);
91
92 return ret;
93 }
94
95 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
96 size_t count, loff_t *ppos)
97 {
98 struct iwl_mvm_sta *mvmsta;
99 int sta_id, drain, ret;
100
101 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
102 return -EIO;
103
104 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
105 return -EINVAL;
106 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
107 return -EINVAL;
108 if (drain < 0 || drain > 1)
109 return -EINVAL;
110
111 mutex_lock(&mvm->mutex);
112
113 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
114
115 if (!mvmsta)
116 ret = -ENOENT;
117 else
118 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
119
120 mutex_unlock(&mvm->mutex);
121
122 return ret;
123 }
124
125 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
126 size_t count, loff_t *ppos)
127 {
128 struct iwl_mvm *mvm = file->private_data;
129 const struct fw_img *img;
130 unsigned int ofs, len;
131 size_t ret;
132 u8 *ptr;
133
134 if (!mvm->ucode_loaded)
135 return -EINVAL;
136
137 /* default is to dump the entire data segment */
138 img = &mvm->fw->img[mvm->cur_ucode];
139 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
140 len = img->sec[IWL_UCODE_SECTION_DATA].len;
141
142 if (mvm->dbgfs_sram_len) {
143 ofs = mvm->dbgfs_sram_offset;
144 len = mvm->dbgfs_sram_len;
145 }
146
147 ptr = kzalloc(len, GFP_KERNEL);
148 if (!ptr)
149 return -ENOMEM;
150
151 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
152
153 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
154
155 kfree(ptr);
156
157 return ret;
158 }
159
160 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
161 size_t count, loff_t *ppos)
162 {
163 const struct fw_img *img;
164 u32 offset, len;
165 u32 img_offset, img_len;
166
167 if (!mvm->ucode_loaded)
168 return -EINVAL;
169
170 img = &mvm->fw->img[mvm->cur_ucode];
171 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
172 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
173
174 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
175 if ((offset & 0x3) || (len & 0x3))
176 return -EINVAL;
177
178 if (offset + len > img_offset + img_len)
179 return -EINVAL;
180
181 mvm->dbgfs_sram_offset = offset;
182 mvm->dbgfs_sram_len = len;
183 } else {
184 mvm->dbgfs_sram_offset = 0;
185 mvm->dbgfs_sram_len = 0;
186 }
187
188 return count;
189 }
190
191 static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
192 char __user *user_buf,
193 size_t count, loff_t *ppos)
194 {
195 struct iwl_mvm *mvm = file->private_data;
196 char buf[16];
197 int pos;
198
199 if (!mvm->temperature_test)
200 pos = scnprintf(buf , sizeof(buf), "disabled\n");
201 else
202 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
203
204 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
205 }
206
207 /*
208 * Set NIC Temperature
209 * Cause the driver to ignore the actual NIC temperature reported by the FW
210 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
211 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
212 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
213 */
214 static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
215 char *buf, size_t count,
216 loff_t *ppos)
217 {
218 int temperature;
219
220 if (!mvm->ucode_loaded && !mvm->temperature_test)
221 return -EIO;
222
223 if (kstrtoint(buf, 10, &temperature))
224 return -EINVAL;
225 /* not a legal temperature */
226 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
227 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
228 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
229 return -EINVAL;
230
231 mutex_lock(&mvm->mutex);
232 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
233 if (!mvm->temperature_test)
234 goto out;
235
236 mvm->temperature_test = false;
237 /* Since we can't read the temp while awake, just set
238 * it to zero until we get the next RX stats from the
239 * firmware.
240 */
241 mvm->temperature = 0;
242 } else {
243 mvm->temperature_test = true;
244 mvm->temperature = temperature;
245 }
246 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
247 mvm->temperature_test ? "En" : "Dis" ,
248 mvm->temperature);
249 /* handle the temperature change */
250 iwl_mvm_tt_handler(mvm);
251
252 out:
253 mutex_unlock(&mvm->mutex);
254
255 return count;
256 }
257
258 static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
259 char __user *user_buf,
260 size_t count, loff_t *ppos)
261 {
262 struct iwl_mvm *mvm = file->private_data;
263 char buf[16];
264 int pos, temp;
265
266 if (!mvm->ucode_loaded)
267 return -EIO;
268
269 mutex_lock(&mvm->mutex);
270 temp = iwl_mvm_get_temp(mvm);
271 mutex_unlock(&mvm->mutex);
272
273 if (temp < 0)
274 return temp;
275
276 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
277
278 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
279 }
280
281 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
282 size_t count, loff_t *ppos)
283 {
284 struct iwl_mvm *mvm = file->private_data;
285 struct ieee80211_sta *sta;
286 char buf[400];
287 int i, pos = 0, bufsz = sizeof(buf);
288
289 mutex_lock(&mvm->mutex);
290
291 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
292 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
293 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
294 lockdep_is_held(&mvm->mutex));
295 if (!sta)
296 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
297 else if (IS_ERR(sta))
298 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
299 PTR_ERR(sta));
300 else
301 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
302 sta->addr);
303 }
304
305 mutex_unlock(&mvm->mutex);
306
307 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
308 }
309
310 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
311 char __user *user_buf,
312 size_t count, loff_t *ppos)
313 {
314 struct iwl_mvm *mvm = file->private_data;
315 char buf[64];
316 int bufsz = sizeof(buf);
317 int pos = 0;
318
319 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
320 mvm->disable_power_off);
321 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
322 mvm->disable_power_off_d3);
323
324 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
325 }
326
327 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
328 size_t count, loff_t *ppos)
329 {
330 int ret, val;
331
332 if (!mvm->ucode_loaded)
333 return -EIO;
334
335 if (!strncmp("disable_power_off_d0=", buf, 21)) {
336 if (sscanf(buf + 21, "%d", &val) != 1)
337 return -EINVAL;
338 mvm->disable_power_off = val;
339 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
340 if (sscanf(buf + 21, "%d", &val) != 1)
341 return -EINVAL;
342 mvm->disable_power_off_d3 = val;
343 } else {
344 return -EINVAL;
345 }
346
347 mutex_lock(&mvm->mutex);
348 ret = iwl_mvm_power_update_device(mvm);
349 mutex_unlock(&mvm->mutex);
350
351 return ret ?: count;
352 }
353
354 #define BT_MBOX_MSG(_notif, _num, _field) \
355 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
356 >> BT_MBOX##_num##_##_field##_POS)
357
358
359 #define BT_MBOX_PRINT(_num, _field, _end) \
360 pos += scnprintf(buf + pos, bufsz - pos, \
361 "\t%s: %d%s", \
362 #_field, \
363 BT_MBOX_MSG(notif, _num, _field), \
364 true ? "\n" : ", ");
365
366 static
367 int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
368 int pos, int bufsz)
369 {
370 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
371
372 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
373 BT_MBOX_PRINT(0, LE_PROF1, false);
374 BT_MBOX_PRINT(0, LE_PROF2, false);
375 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
376 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
377 BT_MBOX_PRINT(0, INBAND_S, false);
378 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
379 BT_MBOX_PRINT(0, LE_SCAN, false);
380 BT_MBOX_PRINT(0, LE_ADV, false);
381 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
382 BT_MBOX_PRINT(0, OPEN_CON_1, true);
383
384 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
385
386 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
387 BT_MBOX_PRINT(1, IP_SR, false);
388 BT_MBOX_PRINT(1, LE_MSTR, false);
389 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
390 BT_MBOX_PRINT(1, MSG_TYPE, false);
391 BT_MBOX_PRINT(1, SSN, true);
392
393 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
394
395 BT_MBOX_PRINT(2, SNIFF_ACT, false);
396 BT_MBOX_PRINT(2, PAG, false);
397 BT_MBOX_PRINT(2, INQUIRY, false);
398 BT_MBOX_PRINT(2, CONN, false);
399 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
400 BT_MBOX_PRINT(2, DISC, false);
401 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
402 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
403 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
404 BT_MBOX_PRINT(2, SCO_DURATION, true);
405
406 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
407
408 BT_MBOX_PRINT(3, SCO_STATE, false);
409 BT_MBOX_PRINT(3, SNIFF_STATE, false);
410 BT_MBOX_PRINT(3, A2DP_STATE, false);
411 BT_MBOX_PRINT(3, ACL_STATE, false);
412 BT_MBOX_PRINT(3, MSTR_STATE, false);
413 BT_MBOX_PRINT(3, OBX_STATE, false);
414 BT_MBOX_PRINT(3, OPEN_CON_2, false);
415 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
416 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
417 BT_MBOX_PRINT(3, INBAND_P, false);
418 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
419 BT_MBOX_PRINT(3, SSN_2, false);
420 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
421
422 return pos;
423 }
424
425 static
426 int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
427 char *buf, int pos, int bufsz)
428 {
429 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
430
431 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
432 BT_MBOX_PRINT(0, LE_PROF1, false);
433 BT_MBOX_PRINT(0, LE_PROF2, false);
434 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
435 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
436 BT_MBOX_PRINT(0, INBAND_S, false);
437 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
438 BT_MBOX_PRINT(0, LE_SCAN, false);
439 BT_MBOX_PRINT(0, LE_ADV, false);
440 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
441 BT_MBOX_PRINT(0, OPEN_CON_1, true);
442
443 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
444
445 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
446 BT_MBOX_PRINT(1, IP_SR, false);
447 BT_MBOX_PRINT(1, LE_MSTR, false);
448 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
449 BT_MBOX_PRINT(1, MSG_TYPE, false);
450 BT_MBOX_PRINT(1, SSN, true);
451
452 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
453
454 BT_MBOX_PRINT(2, SNIFF_ACT, false);
455 BT_MBOX_PRINT(2, PAG, false);
456 BT_MBOX_PRINT(2, INQUIRY, false);
457 BT_MBOX_PRINT(2, CONN, false);
458 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
459 BT_MBOX_PRINT(2, DISC, false);
460 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
461 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
462 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
463 BT_MBOX_PRINT(2, SCO_DURATION, true);
464
465 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
466
467 BT_MBOX_PRINT(3, SCO_STATE, false);
468 BT_MBOX_PRINT(3, SNIFF_STATE, false);
469 BT_MBOX_PRINT(3, A2DP_STATE, false);
470 BT_MBOX_PRINT(3, ACL_STATE, false);
471 BT_MBOX_PRINT(3, MSTR_STATE, false);
472 BT_MBOX_PRINT(3, OBX_STATE, false);
473 BT_MBOX_PRINT(3, OPEN_CON_2, false);
474 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
475 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
476 BT_MBOX_PRINT(3, INBAND_P, false);
477 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
478 BT_MBOX_PRINT(3, SSN_2, false);
479 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
480
481 return pos;
482 }
483
484 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
485 size_t count, loff_t *ppos)
486 {
487 struct iwl_mvm *mvm = file->private_data;
488 char *buf;
489 int ret, pos = 0, bufsz = sizeof(char) * 1024;
490
491 buf = kmalloc(bufsz, GFP_KERNEL);
492 if (!buf)
493 return -ENOMEM;
494
495 mutex_lock(&mvm->mutex);
496
497 if (!fw_has_api(&mvm->fw->ucode_capa,
498 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
499 struct iwl_bt_coex_profile_notif_old *notif =
500 &mvm->last_bt_notif_old;
501
502 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
503
504 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
505 notif->bt_ci_compliance);
506 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
507 le32_to_cpu(notif->primary_ch_lut));
508 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
509 le32_to_cpu(notif->secondary_ch_lut));
510 pos += scnprintf(buf+pos,
511 bufsz-pos, "bt_activity_grading = %d\n",
512 le32_to_cpu(notif->bt_activity_grading));
513 pos += scnprintf(buf+pos, bufsz-pos,
514 "antenna isolation = %d CORUN LUT index = %d\n",
515 mvm->last_ant_isol, mvm->last_corun_lut);
516 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
517 notif->rrc_enabled);
518 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
519 notif->ttc_enabled);
520 } else {
521 struct iwl_bt_coex_profile_notif *notif =
522 &mvm->last_bt_notif;
523
524 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
525
526 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
527 notif->bt_ci_compliance);
528 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
529 le32_to_cpu(notif->primary_ch_lut));
530 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
531 le32_to_cpu(notif->secondary_ch_lut));
532 pos += scnprintf(buf+pos,
533 bufsz-pos, "bt_activity_grading = %d\n",
534 le32_to_cpu(notif->bt_activity_grading));
535 pos += scnprintf(buf+pos, bufsz-pos,
536 "antenna isolation = %d CORUN LUT index = %d\n",
537 mvm->last_ant_isol, mvm->last_corun_lut);
538 pos += scnprintf(buf + pos, bufsz - pos, "bt_rrc = %d\n",
539 (notif->ttc_rrc_status >> 4) & 0xF);
540 pos += scnprintf(buf + pos, bufsz - pos, "bt_ttc = %d\n",
541 notif->ttc_rrc_status & 0xF);
542 }
543
544 pos += scnprintf(buf + pos, bufsz - pos, "sync_sco = %d\n",
545 IWL_MVM_BT_COEX_SYNC2SCO);
546 pos += scnprintf(buf + pos, bufsz - pos, "mplut = %d\n",
547 IWL_MVM_BT_COEX_MPLUT);
548 pos += scnprintf(buf + pos, bufsz - pos, "corunning = %d\n",
549 IWL_MVM_BT_COEX_CORUNNING);
550
551 mutex_unlock(&mvm->mutex);
552
553 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
554 kfree(buf);
555
556 return ret;
557 }
558 #undef BT_MBOX_PRINT
559
560 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
561 size_t count, loff_t *ppos)
562 {
563 struct iwl_mvm *mvm = file->private_data;
564 char buf[256];
565 int bufsz = sizeof(buf);
566 int pos = 0;
567
568 mutex_lock(&mvm->mutex);
569
570 if (!fw_has_api(&mvm->fw->ucode_capa,
571 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
572 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
573
574 pos += scnprintf(buf+pos, bufsz-pos,
575 "Channel inhibition CMD\n");
576 pos += scnprintf(buf+pos, bufsz-pos,
577 "\tPrimary Channel Bitmap 0x%016llx\n",
578 le64_to_cpu(cmd->bt_primary_ci));
579 pos += scnprintf(buf+pos, bufsz-pos,
580 "\tSecondary Channel Bitmap 0x%016llx\n",
581 le64_to_cpu(cmd->bt_secondary_ci));
582
583 pos += scnprintf(buf+pos, bufsz-pos,
584 "BT Configuration CMD - 0=default, 1=never, 2=always\n");
585 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill msk idx %d\n",
586 mvm->bt_ack_kill_msk[0]);
587 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill msk idx %d\n",
588 mvm->bt_cts_kill_msk[0]);
589
590 } else {
591 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
592
593 pos += scnprintf(buf+pos, bufsz-pos,
594 "Channel inhibition CMD\n");
595 pos += scnprintf(buf+pos, bufsz-pos,
596 "\tPrimary Channel Bitmap 0x%016llx\n",
597 le64_to_cpu(cmd->bt_primary_ci));
598 pos += scnprintf(buf+pos, bufsz-pos,
599 "\tSecondary Channel Bitmap 0x%016llx\n",
600 le64_to_cpu(cmd->bt_secondary_ci));
601 }
602
603 mutex_unlock(&mvm->mutex);
604
605 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
606 }
607
608 static ssize_t
609 iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
610 size_t count, loff_t *ppos)
611 {
612 u32 bt_tx_prio;
613
614 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
615 return -EINVAL;
616 if (bt_tx_prio > 4)
617 return -EINVAL;
618
619 mvm->bt_tx_prio = bt_tx_prio;
620
621 return count;
622 }
623
624 static ssize_t
625 iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
626 size_t count, loff_t *ppos)
627 {
628 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
629 [BT_FORCE_ANT_DIS] = "dis",
630 [BT_FORCE_ANT_AUTO] = "auto",
631 [BT_FORCE_ANT_BT] = "bt",
632 [BT_FORCE_ANT_WIFI] = "wifi",
633 };
634 int ret, bt_force_ant_mode;
635
636 for (bt_force_ant_mode = 0;
637 bt_force_ant_mode < ARRAY_SIZE(modes_str);
638 bt_force_ant_mode++) {
639 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
640 break;
641 }
642
643 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
644 return -EINVAL;
645
646 ret = 0;
647 mutex_lock(&mvm->mutex);
648 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
649 goto out;
650
651 mvm->bt_force_ant_mode = bt_force_ant_mode;
652 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
653 modes_str[mvm->bt_force_ant_mode]);
654 ret = iwl_send_bt_init_conf(mvm);
655
656 out:
657 mutex_unlock(&mvm->mutex);
658 return ret ?: count;
659 }
660
661 #define PRINT_STATS_LE32(_struct, _memb) \
662 pos += scnprintf(buf + pos, bufsz - pos, \
663 fmt_table, #_memb, \
664 le32_to_cpu(_struct->_memb))
665
666 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
667 char __user *user_buf, size_t count,
668 loff_t *ppos)
669 {
670 struct iwl_mvm *mvm = file->private_data;
671 static const char *fmt_table = "\t%-30s %10u\n";
672 static const char *fmt_header = "%-32s\n";
673 int pos = 0;
674 char *buf;
675 int ret;
676 /* 43 is the size of each data line, 33 is the size of each header */
677 size_t bufsz =
678 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
679 (4 * 33) + 1;
680
681 struct mvm_statistics_rx_phy *ofdm;
682 struct mvm_statistics_rx_phy *cck;
683 struct mvm_statistics_rx_non_phy *general;
684 struct mvm_statistics_rx_ht_phy *ht;
685
686 buf = kzalloc(bufsz, GFP_KERNEL);
687 if (!buf)
688 return -ENOMEM;
689
690 mutex_lock(&mvm->mutex);
691
692 ofdm = &mvm->rx_stats.ofdm;
693 cck = &mvm->rx_stats.cck;
694 general = &mvm->rx_stats.general;
695 ht = &mvm->rx_stats.ofdm_ht;
696
697 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
698 "Statistics_Rx - OFDM");
699 PRINT_STATS_LE32(ofdm, ina_cnt);
700 PRINT_STATS_LE32(ofdm, fina_cnt);
701 PRINT_STATS_LE32(ofdm, plcp_err);
702 PRINT_STATS_LE32(ofdm, crc32_err);
703 PRINT_STATS_LE32(ofdm, overrun_err);
704 PRINT_STATS_LE32(ofdm, early_overrun_err);
705 PRINT_STATS_LE32(ofdm, crc32_good);
706 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
707 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
708 PRINT_STATS_LE32(ofdm, sfd_timeout);
709 PRINT_STATS_LE32(ofdm, fina_timeout);
710 PRINT_STATS_LE32(ofdm, unresponded_rts);
711 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
712 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
713 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
714 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
715 PRINT_STATS_LE32(ofdm, dsp_self_kill);
716 PRINT_STATS_LE32(ofdm, mh_format_err);
717 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
718 PRINT_STATS_LE32(ofdm, reserved);
719
720 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
721 "Statistics_Rx - CCK");
722 PRINT_STATS_LE32(cck, ina_cnt);
723 PRINT_STATS_LE32(cck, fina_cnt);
724 PRINT_STATS_LE32(cck, plcp_err);
725 PRINT_STATS_LE32(cck, crc32_err);
726 PRINT_STATS_LE32(cck, overrun_err);
727 PRINT_STATS_LE32(cck, early_overrun_err);
728 PRINT_STATS_LE32(cck, crc32_good);
729 PRINT_STATS_LE32(cck, false_alarm_cnt);
730 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
731 PRINT_STATS_LE32(cck, sfd_timeout);
732 PRINT_STATS_LE32(cck, fina_timeout);
733 PRINT_STATS_LE32(cck, unresponded_rts);
734 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
735 PRINT_STATS_LE32(cck, sent_ack_cnt);
736 PRINT_STATS_LE32(cck, sent_cts_cnt);
737 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
738 PRINT_STATS_LE32(cck, dsp_self_kill);
739 PRINT_STATS_LE32(cck, mh_format_err);
740 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
741 PRINT_STATS_LE32(cck, reserved);
742
743 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
744 "Statistics_Rx - GENERAL");
745 PRINT_STATS_LE32(general, bogus_cts);
746 PRINT_STATS_LE32(general, bogus_ack);
747 PRINT_STATS_LE32(general, non_bssid_frames);
748 PRINT_STATS_LE32(general, filtered_frames);
749 PRINT_STATS_LE32(general, non_channel_beacons);
750 PRINT_STATS_LE32(general, channel_beacons);
751 PRINT_STATS_LE32(general, num_missed_bcon);
752 PRINT_STATS_LE32(general, adc_rx_saturation_time);
753 PRINT_STATS_LE32(general, ina_detection_search_time);
754 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
755 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
756 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
757 PRINT_STATS_LE32(general, interference_data_flag);
758 PRINT_STATS_LE32(general, channel_load);
759 PRINT_STATS_LE32(general, dsp_false_alarms);
760 PRINT_STATS_LE32(general, beacon_rssi_a);
761 PRINT_STATS_LE32(general, beacon_rssi_b);
762 PRINT_STATS_LE32(general, beacon_rssi_c);
763 PRINT_STATS_LE32(general, beacon_energy_a);
764 PRINT_STATS_LE32(general, beacon_energy_b);
765 PRINT_STATS_LE32(general, beacon_energy_c);
766 PRINT_STATS_LE32(general, num_bt_kills);
767 PRINT_STATS_LE32(general, mac_id);
768 PRINT_STATS_LE32(general, directed_data_mpdu);
769
770 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
771 "Statistics_Rx - HT");
772 PRINT_STATS_LE32(ht, plcp_err);
773 PRINT_STATS_LE32(ht, overrun_err);
774 PRINT_STATS_LE32(ht, early_overrun_err);
775 PRINT_STATS_LE32(ht, crc32_good);
776 PRINT_STATS_LE32(ht, crc32_err);
777 PRINT_STATS_LE32(ht, mh_format_err);
778 PRINT_STATS_LE32(ht, agg_crc32_good);
779 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
780 PRINT_STATS_LE32(ht, agg_cnt);
781 PRINT_STATS_LE32(ht, unsupport_mcs);
782
783 mutex_unlock(&mvm->mutex);
784
785 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
786 kfree(buf);
787
788 return ret;
789 }
790 #undef PRINT_STAT_LE32
791
792 static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
793 char __user *user_buf, size_t count,
794 loff_t *ppos,
795 struct iwl_mvm_frame_stats *stats)
796 {
797 char *buff, *pos, *endpos;
798 int idx, i;
799 int ret;
800 static const size_t bufsz = 1024;
801
802 buff = kmalloc(bufsz, GFP_KERNEL);
803 if (!buff)
804 return -ENOMEM;
805
806 spin_lock_bh(&mvm->drv_stats_lock);
807
808 pos = buff;
809 endpos = pos + bufsz;
810
811 pos += scnprintf(pos, endpos - pos,
812 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
813 stats->legacy_frames,
814 stats->ht_frames,
815 stats->vht_frames);
816 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
817 stats->bw_20_frames,
818 stats->bw_40_frames,
819 stats->bw_80_frames);
820 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
821 stats->ngi_frames,
822 stats->sgi_frames);
823 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
824 stats->siso_frames,
825 stats->mimo2_frames);
826 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
827 stats->fail_frames,
828 stats->success_frames);
829 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
830 stats->agg_frames);
831 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
832 stats->ampdu_count);
833 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
834 stats->ampdu_count > 0 ?
835 (stats->agg_frames / stats->ampdu_count) : 0);
836
837 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
838
839 idx = stats->last_frame_idx - 1;
840 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
841 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
842 if (stats->last_rates[idx] == 0)
843 continue;
844 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
845 (int)(ARRAY_SIZE(stats->last_rates) - i));
846 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
847 }
848 spin_unlock_bh(&mvm->drv_stats_lock);
849
850 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
851 kfree(buff);
852
853 return ret;
854 }
855
856 static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
857 char __user *user_buf, size_t count,
858 loff_t *ppos)
859 {
860 struct iwl_mvm *mvm = file->private_data;
861
862 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
863 &mvm->drv_rx_stats);
864 }
865
866 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
867 size_t count, loff_t *ppos)
868 {
869 int ret;
870
871 mutex_lock(&mvm->mutex);
872
873 /* allow one more restart that we're provoking here */
874 if (mvm->restart_fw >= 0)
875 mvm->restart_fw++;
876
877 /* take the return value to make compiler happy - it will fail anyway */
878 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
879
880 mutex_unlock(&mvm->mutex);
881
882 return count;
883 }
884
885 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
886 size_t count, loff_t *ppos)
887 {
888 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
889 if (ret)
890 return ret;
891
892 iwl_force_nmi(mvm->trans);
893
894 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
895
896 return count;
897 }
898
899 static ssize_t
900 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
901 char __user *user_buf,
902 size_t count, loff_t *ppos)
903 {
904 struct iwl_mvm *mvm = file->private_data;
905 int pos = 0;
906 char buf[32];
907 const size_t bufsz = sizeof(buf);
908
909 /* print which antennas were set for the scan command by the user */
910 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
911 if (mvm->scan_rx_ant & ANT_A)
912 pos += scnprintf(buf + pos, bufsz - pos, "A");
913 if (mvm->scan_rx_ant & ANT_B)
914 pos += scnprintf(buf + pos, bufsz - pos, "B");
915 if (mvm->scan_rx_ant & ANT_C)
916 pos += scnprintf(buf + pos, bufsz - pos, "C");
917 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
918
919 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
920 }
921
922 static ssize_t
923 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
924 size_t count, loff_t *ppos)
925 {
926 u8 scan_rx_ant;
927
928 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
929 return -EINVAL;
930 if (scan_rx_ant > ANT_ABC)
931 return -EINVAL;
932 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
933 return -EINVAL;
934
935 if (mvm->scan_rx_ant != scan_rx_ant) {
936 mvm->scan_rx_ant = scan_rx_ant;
937 if (fw_has_capa(&mvm->fw->ucode_capa,
938 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
939 iwl_mvm_config_scan(mvm);
940 }
941
942 return count;
943 }
944
945 static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
946 char __user *user_buf,
947 size_t count, loff_t *ppos)
948 {
949 struct iwl_mvm *mvm = file->private_data;
950 int conf;
951 char buf[8];
952 const size_t bufsz = sizeof(buf);
953 int pos = 0;
954
955 mutex_lock(&mvm->mutex);
956 conf = mvm->fw_dbg_conf;
957 mutex_unlock(&mvm->mutex);
958
959 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
960
961 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
962 }
963
964 /*
965 * Enable / Disable continuous recording.
966 * Cause the FW to start continuous recording, by sending the relevant hcmd.
967 * Enable: input of every integer larger than 0, ENABLE_CONT_RECORDING.
968 * Disable: for 0 as input, DISABLE_CONT_RECORDING.
969 */
970 static ssize_t iwl_dbgfs_cont_recording_write(struct iwl_mvm *mvm,
971 char *buf, size_t count,
972 loff_t *ppos)
973 {
974 struct iwl_trans *trans = mvm->trans;
975 const struct iwl_fw_dbg_dest_tlv *dest = trans->dbg_dest_tlv;
976 struct iwl_continuous_record_cmd cont_rec = {};
977 int ret, rec_mode;
978
979 if (!dest)
980 return -EOPNOTSUPP;
981
982 if (dest->monitor_mode != SMEM_MODE ||
983 trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
984 return -EOPNOTSUPP;
985
986 ret = kstrtouint(buf, 0, &rec_mode);
987 if (ret)
988 return ret;
989
990 cont_rec.record_mode.enable_recording = rec_mode ?
991 cpu_to_le16(ENABLE_CONT_RECORDING) :
992 cpu_to_le16(DISABLE_CONT_RECORDING);
993
994 mutex_lock(&mvm->mutex);
995 ret = iwl_mvm_send_cmd_pdu(mvm, LDBG_CONFIG_CMD, 0,
996 sizeof(cont_rec), &cont_rec);
997 mutex_unlock(&mvm->mutex);
998
999 return ret ?: count;
1000 }
1001
1002 static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
1003 char *buf, size_t count,
1004 loff_t *ppos)
1005 {
1006 unsigned int conf_id;
1007 int ret;
1008
1009 ret = kstrtouint(buf, 0, &conf_id);
1010 if (ret)
1011 return ret;
1012
1013 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
1014 return -EINVAL;
1015
1016 mutex_lock(&mvm->mutex);
1017 ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
1018 mutex_unlock(&mvm->mutex);
1019
1020 return ret ?: count;
1021 }
1022
1023 static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
1024 char *buf, size_t count,
1025 loff_t *ppos)
1026 {
1027 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1028
1029 if (ret)
1030 return ret;
1031
1032 iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf,
1033 (count - 1), NULL);
1034
1035 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1036
1037 return count;
1038 }
1039
1040 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
1041 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1042 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
1043 char __user *user_buf,
1044 size_t count, loff_t *ppos)
1045 {
1046 struct iwl_mvm *mvm = file->private_data;
1047 struct iwl_bcast_filter_cmd cmd;
1048 const struct iwl_fw_bcast_filter *filter;
1049 char *buf;
1050 int bufsz = 1024;
1051 int i, j, pos = 0;
1052 ssize_t ret;
1053
1054 buf = kzalloc(bufsz, GFP_KERNEL);
1055 if (!buf)
1056 return -ENOMEM;
1057
1058 mutex_lock(&mvm->mutex);
1059 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1060 ADD_TEXT("None\n");
1061 mutex_unlock(&mvm->mutex);
1062 goto out;
1063 }
1064 mutex_unlock(&mvm->mutex);
1065
1066 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1067 filter = &cmd.filters[i];
1068
1069 ADD_TEXT("Filter [%d]:\n", i);
1070 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1071 ADD_TEXT("\tFrame Type: %s\n",
1072 filter->frame_type ? "IPv4" : "Generic");
1073
1074 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1075 const struct iwl_fw_bcast_filter_attr *attr;
1076
1077 attr = &filter->attrs[j];
1078 if (!attr->mask)
1079 break;
1080
1081 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1082 j, attr->offset,
1083 attr->offset_type ? "IP End" :
1084 "Payload Start",
1085 be32_to_cpu(attr->mask),
1086 be32_to_cpu(attr->val),
1087 le16_to_cpu(attr->reserved1));
1088 }
1089 }
1090 out:
1091 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1092 kfree(buf);
1093 return ret;
1094 }
1095
1096 static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1097 size_t count, loff_t *ppos)
1098 {
1099 int pos, next_pos;
1100 struct iwl_fw_bcast_filter filter = {};
1101 struct iwl_bcast_filter_cmd cmd;
1102 u32 filter_id, attr_id, mask, value;
1103 int err = 0;
1104
1105 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1106 &filter.frame_type, &pos) != 3)
1107 return -EINVAL;
1108
1109 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1110 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1111 return -EINVAL;
1112
1113 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1114 attr_id++) {
1115 struct iwl_fw_bcast_filter_attr *attr =
1116 &filter.attrs[attr_id];
1117
1118 if (pos >= count)
1119 break;
1120
1121 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1122 &attr->offset, &attr->offset_type,
1123 &mask, &value, &next_pos) != 4)
1124 return -EINVAL;
1125
1126 attr->mask = cpu_to_be32(mask);
1127 attr->val = cpu_to_be32(value);
1128 if (mask)
1129 filter.num_attrs++;
1130
1131 pos += next_pos;
1132 }
1133
1134 mutex_lock(&mvm->mutex);
1135 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1136 &filter, sizeof(filter));
1137
1138 /* send updated bcast filtering configuration */
1139 if (mvm->dbgfs_bcast_filtering.override &&
1140 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1141 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1142 sizeof(cmd), &cmd);
1143 mutex_unlock(&mvm->mutex);
1144
1145 return err ?: count;
1146 }
1147
1148 static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1149 char __user *user_buf,
1150 size_t count, loff_t *ppos)
1151 {
1152 struct iwl_mvm *mvm = file->private_data;
1153 struct iwl_bcast_filter_cmd cmd;
1154 char *buf;
1155 int bufsz = 1024;
1156 int i, pos = 0;
1157 ssize_t ret;
1158
1159 buf = kzalloc(bufsz, GFP_KERNEL);
1160 if (!buf)
1161 return -ENOMEM;
1162
1163 mutex_lock(&mvm->mutex);
1164 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1165 ADD_TEXT("None\n");
1166 mutex_unlock(&mvm->mutex);
1167 goto out;
1168 }
1169 mutex_unlock(&mvm->mutex);
1170
1171 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1172 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1173
1174 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1175 i, mac->default_discard, mac->attached_filters);
1176 }
1177 out:
1178 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1179 kfree(buf);
1180 return ret;
1181 }
1182
1183 static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1184 char *buf, size_t count,
1185 loff_t *ppos)
1186 {
1187 struct iwl_bcast_filter_cmd cmd;
1188 struct iwl_fw_bcast_mac mac = {};
1189 u32 mac_id, attached_filters;
1190 int err = 0;
1191
1192 if (!mvm->bcast_filters)
1193 return -ENOENT;
1194
1195 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1196 &attached_filters) != 3)
1197 return -EINVAL;
1198
1199 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1200 mac.default_discard > 1 ||
1201 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1202 return -EINVAL;
1203
1204 mac.attached_filters = cpu_to_le16(attached_filters);
1205
1206 mutex_lock(&mvm->mutex);
1207 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1208 &mac, sizeof(mac));
1209
1210 /* send updated bcast filtering configuration */
1211 if (mvm->dbgfs_bcast_filtering.override &&
1212 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1213 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1214 sizeof(cmd), &cmd);
1215 mutex_unlock(&mvm->mutex);
1216
1217 return err ?: count;
1218 }
1219 #endif
1220
1221 #ifdef CONFIG_PM_SLEEP
1222 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1223 size_t count, loff_t *ppos)
1224 {
1225 int store;
1226
1227 if (sscanf(buf, "%d", &store) != 1)
1228 return -EINVAL;
1229
1230 mvm->store_d3_resume_sram = store;
1231
1232 return count;
1233 }
1234
1235 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1236 size_t count, loff_t *ppos)
1237 {
1238 struct iwl_mvm *mvm = file->private_data;
1239 const struct fw_img *img;
1240 int ofs, len, pos = 0;
1241 size_t bufsz, ret;
1242 char *buf;
1243 u8 *ptr = mvm->d3_resume_sram;
1244
1245 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1246 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1247
1248 bufsz = len * 4 + 256;
1249 buf = kzalloc(bufsz, GFP_KERNEL);
1250 if (!buf)
1251 return -ENOMEM;
1252
1253 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1254 mvm->store_d3_resume_sram ? "en" : "dis");
1255
1256 if (ptr) {
1257 for (ofs = 0; ofs < len; ofs += 16) {
1258 pos += scnprintf(buf + pos, bufsz - pos,
1259 "0x%.4x %16ph\n", ofs, ptr + ofs);
1260 }
1261 } else {
1262 pos += scnprintf(buf + pos, bufsz - pos,
1263 "(no data captured)\n");
1264 }
1265
1266 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1267
1268 kfree(buf);
1269
1270 return ret;
1271 }
1272 #endif
1273
1274 #define PRINT_MVM_REF(ref) do { \
1275 if (mvm->refs[ref]) \
1276 pos += scnprintf(buf + pos, bufsz - pos, \
1277 "\t(0x%lx): %d %s\n", \
1278 BIT(ref), mvm->refs[ref], #ref); \
1279 } while (0)
1280
1281 static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1282 char __user *user_buf,
1283 size_t count, loff_t *ppos)
1284 {
1285 struct iwl_mvm *mvm = file->private_data;
1286 int i, pos = 0;
1287 char buf[256];
1288 const size_t bufsz = sizeof(buf);
1289 u32 refs = 0;
1290
1291 for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1292 if (mvm->refs[i])
1293 refs |= BIT(i);
1294
1295 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1296 refs);
1297
1298 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1299 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1300 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1301 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1302 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1303 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1304 PRINT_MVM_REF(IWL_MVM_REF_USER);
1305 PRINT_MVM_REF(IWL_MVM_REF_TX);
1306 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1307 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1308 PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1309 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1310 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1311 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1312 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1313 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1314 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1315 PRINT_MVM_REF(IWL_MVM_REF_NMI);
1316 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1317 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1318 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1319 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1320 PRINT_MVM_REF(IWL_MVM_REF_INIT_UCODE);
1321
1322 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1323 }
1324
1325 static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1326 size_t count, loff_t *ppos)
1327 {
1328 unsigned long value;
1329 int ret;
1330 bool taken;
1331
1332 ret = kstrtoul(buf, 10, &value);
1333 if (ret < 0)
1334 return ret;
1335
1336 mutex_lock(&mvm->mutex);
1337
1338 taken = mvm->refs[IWL_MVM_REF_USER];
1339 if (value == 1 && !taken)
1340 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1341 else if (value == 0 && taken)
1342 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1343 else
1344 ret = -EINVAL;
1345
1346 mutex_unlock(&mvm->mutex);
1347
1348 if (ret < 0)
1349 return ret;
1350 return count;
1351 }
1352
1353 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1354 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1355 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1356 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1357 #define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1358 if (!debugfs_create_file(alias, mode, parent, mvm, \
1359 &iwl_dbgfs_##name##_ops)) \
1360 goto err; \
1361 } while (0)
1362 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1363 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1364
1365 static ssize_t
1366 iwl_dbgfs_prph_reg_read(struct file *file,
1367 char __user *user_buf,
1368 size_t count, loff_t *ppos)
1369 {
1370 struct iwl_mvm *mvm = file->private_data;
1371 int pos = 0;
1372 char buf[32];
1373 const size_t bufsz = sizeof(buf);
1374 int ret;
1375
1376 if (!mvm->dbgfs_prph_reg_addr)
1377 return -EINVAL;
1378
1379 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1380 if (ret)
1381 return ret;
1382
1383 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1384 mvm->dbgfs_prph_reg_addr,
1385 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1386
1387 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1388
1389 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1390 }
1391
1392 static ssize_t
1393 iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1394 size_t count, loff_t *ppos)
1395 {
1396 u8 args;
1397 u32 value;
1398 int ret;
1399
1400 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1401 /* if we only want to set the reg address - nothing more to do */
1402 if (args == 1)
1403 goto out;
1404
1405 /* otherwise, make sure we have both address and value */
1406 if (args != 2)
1407 return -EINVAL;
1408
1409 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1410 if (ret)
1411 return ret;
1412
1413 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1414
1415 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1416 out:
1417 return count;
1418 }
1419
1420 static ssize_t
1421 iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1422 size_t count, loff_t *ppos)
1423 {
1424 int ret;
1425
1426 mutex_lock(&mvm->mutex);
1427 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1428 mutex_unlock(&mvm->mutex);
1429
1430 return ret ?: count;
1431 }
1432
1433 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1434
1435 /* Device wide debugfs entries */
1436 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1437 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1438 MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1439 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1440 MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1441 MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1442 MVM_DEBUGFS_READ_FILE_OPS(stations);
1443 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1444 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1445 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1446 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1447 MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1448 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1449 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1450 MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1451 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1452 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1453 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1454 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1455 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 64);
1456 MVM_DEBUGFS_WRITE_FILE_OPS(cont_recording, 8);
1457
1458 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1459 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1460 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1461 #endif
1462
1463 #ifdef CONFIG_PM_SLEEP
1464 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1465 #endif
1466
1467 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1468 {
1469 struct dentry *bcast_dir __maybe_unused;
1470 char buf[100];
1471
1472 spin_lock_init(&mvm->drv_stats_lock);
1473
1474 mvm->debugfs_dir = dbgfs_dir;
1475
1476 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1477 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1478 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1479 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1480 S_IWUSR | S_IRUSR);
1481 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1482 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1483 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1484 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1485 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1486 S_IRUSR | S_IWUSR);
1487 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1488 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1489 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1490 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1491 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1492 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1493 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1494 S_IWUSR | S_IRUSR);
1495 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1496 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1497 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1498 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1499 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1500 MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR);
1501 if (!debugfs_create_bool("enable_scan_iteration_notif",
1502 S_IRUSR | S_IWUSR,
1503 mvm->debugfs_dir,
1504 &mvm->scan_iter_notif_enabled))
1505 goto err;
1506
1507 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1508 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1509 bcast_dir = debugfs_create_dir("bcast_filtering",
1510 mvm->debugfs_dir);
1511 if (!bcast_dir)
1512 goto err;
1513
1514 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1515 bcast_dir,
1516 &mvm->dbgfs_bcast_filtering.override))
1517 goto err;
1518
1519 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1520 bcast_dir, S_IWUSR | S_IRUSR);
1521 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1522 bcast_dir, S_IWUSR | S_IRUSR);
1523 }
1524 #endif
1525
1526 #ifdef CONFIG_PM_SLEEP
1527 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1528 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1529 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1530 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1531 goto err;
1532 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
1533 mvm->debugfs_dir, &mvm->last_netdetect_scans))
1534 goto err;
1535 #endif
1536
1537 if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1538 mvm->debugfs_dir, &mvm->ps_disabled))
1539 goto err;
1540 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1541 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1542 goto err;
1543 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1544 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1545 goto err;
1546 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1547 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1548 goto err;
1549 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1550 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1551 goto err;
1552 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
1553 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
1554 goto err;
1555
1556 /*
1557 * Create a symlink with mac80211. It will be removed when mac80211
1558 * exists (before the opmode exists which removes the target.)
1559 */
1560 snprintf(buf, 100, "../../%s/%s",
1561 dbgfs_dir->d_parent->d_parent->d_name.name,
1562 dbgfs_dir->d_parent->d_name.name);
1563 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1564 goto err;
1565
1566 return 0;
1567 err:
1568 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1569 return -ENOMEM;
1570 }
Linux kernel - Deliverables
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