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authorKalle Valo <kvalo@codeaurora.org>2015-11-17 13:57:38 -0500
committerKalle Valo <kvalo@codeaurora.org>2015-11-18 07:28:30 -0500
commite705c12146aa9c69ca498d4ebb83ba7138f9b41f (patch)
treeb55d4eb7a83c2ec117f460684eb71c89eee6a709 /drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
parent7ac9a364c1721a863ecc6cc9aba66e10114908db (diff)
iwlwifi: move under intel vendor directory
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c1516
1 files changed, 1516 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
new file mode 100644
index 000000000000..05928fb4021d
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -0,0 +1,1516 @@
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 <ilw@linux.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 "sta.h"
69#include "iwl-io.h"
70#include "debugfs.h"
71#include "iwl-fw-error-dump.h"
72
73static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
74 size_t count, loff_t *ppos)
75{
76 int ret;
77 u32 scd_q_msk;
78
79 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
80 return -EIO;
81
82 if (sscanf(buf, "%x", &scd_q_msk) != 1)
83 return -EINVAL;
84
85 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
86
87 mutex_lock(&mvm->mutex);
88 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, 0) ? : count;
89 mutex_unlock(&mvm->mutex);
90
91 return ret;
92}
93
94static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
95 size_t count, loff_t *ppos)
96{
97 struct iwl_mvm_sta *mvmsta;
98 int sta_id, drain, ret;
99
100 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
101 return -EIO;
102
103 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
104 return -EINVAL;
105 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
106 return -EINVAL;
107 if (drain < 0 || drain > 1)
108 return -EINVAL;
109
110 mutex_lock(&mvm->mutex);
111
112 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
113
114 if (!mvmsta)
115 ret = -ENOENT;
116 else
117 ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count;
118
119 mutex_unlock(&mvm->mutex);
120
121 return ret;
122}
123
124static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
125 size_t count, loff_t *ppos)
126{
127 struct iwl_mvm *mvm = file->private_data;
128 const struct fw_img *img;
129 unsigned int ofs, len;
130 size_t ret;
131 u8 *ptr;
132
133 if (!mvm->ucode_loaded)
134 return -EINVAL;
135
136 /* default is to dump the entire data segment */
137 img = &mvm->fw->img[mvm->cur_ucode];
138 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
139 len = img->sec[IWL_UCODE_SECTION_DATA].len;
140
141 if (mvm->dbgfs_sram_len) {
142 ofs = mvm->dbgfs_sram_offset;
143 len = mvm->dbgfs_sram_len;
144 }
145
146 ptr = kzalloc(len, GFP_KERNEL);
147 if (!ptr)
148 return -ENOMEM;
149
150 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
151
152 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
153
154 kfree(ptr);
155
156 return ret;
157}
158
159static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
160 size_t count, loff_t *ppos)
161{
162 const struct fw_img *img;
163 u32 offset, len;
164 u32 img_offset, img_len;
165
166 if (!mvm->ucode_loaded)
167 return -EINVAL;
168
169 img = &mvm->fw->img[mvm->cur_ucode];
170 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
171 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
172
173 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
174 if ((offset & 0x3) || (len & 0x3))
175 return -EINVAL;
176
177 if (offset + len > img_offset + img_len)
178 return -EINVAL;
179
180 mvm->dbgfs_sram_offset = offset;
181 mvm->dbgfs_sram_len = len;
182 } else {
183 mvm->dbgfs_sram_offset = 0;
184 mvm->dbgfs_sram_len = 0;
185 }
186
187 return count;
188}
189
190static ssize_t iwl_dbgfs_set_nic_temperature_read(struct file *file,
191 char __user *user_buf,
192 size_t count, loff_t *ppos)
193{
194 struct iwl_mvm *mvm = file->private_data;
195 char buf[16];
196 int pos;
197
198 if (!mvm->temperature_test)
199 pos = scnprintf(buf , sizeof(buf), "disabled\n");
200 else
201 pos = scnprintf(buf , sizeof(buf), "%d\n", mvm->temperature);
202
203 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
204}
205
206/*
207 * Set NIC Temperature
208 * Cause the driver to ignore the actual NIC temperature reported by the FW
209 * Enable: any value between IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -
210 * IWL_MVM_DEBUG_SET_TEMPERATURE_MAX
211 * Disable: IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE
212 */
213static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm,
214 char *buf, size_t count,
215 loff_t *ppos)
216{
217 int temperature;
218
219 if (!mvm->ucode_loaded && !mvm->temperature_test)
220 return -EIO;
221
222 if (kstrtoint(buf, 10, &temperature))
223 return -EINVAL;
224 /* not a legal temperature */
225 if ((temperature > IWL_MVM_DEBUG_SET_TEMPERATURE_MAX &&
226 temperature != IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) ||
227 temperature < IWL_MVM_DEBUG_SET_TEMPERATURE_MIN)
228 return -EINVAL;
229
230 mutex_lock(&mvm->mutex);
231 if (temperature == IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE) {
232 if (!mvm->temperature_test)
233 goto out;
234
235 mvm->temperature_test = false;
236 /* Since we can't read the temp while awake, just set
237 * it to zero until we get the next RX stats from the
238 * firmware.
239 */
240 mvm->temperature = 0;
241 } else {
242 mvm->temperature_test = true;
243 mvm->temperature = temperature;
244 }
245 IWL_DEBUG_TEMP(mvm, "%sabling debug set temperature (temp = %d)\n",
246 mvm->temperature_test ? "En" : "Dis" ,
247 mvm->temperature);
248 /* handle the temperature change */
249 iwl_mvm_tt_handler(mvm);
250
251out:
252 mutex_unlock(&mvm->mutex);
253
254 return count;
255}
256
257static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
258 char __user *user_buf,
259 size_t count, loff_t *ppos)
260{
261 struct iwl_mvm *mvm = file->private_data;
262 char buf[16];
263 int pos, temp;
264
265 if (!mvm->ucode_loaded)
266 return -EIO;
267
268 mutex_lock(&mvm->mutex);
269 temp = iwl_mvm_get_temp(mvm);
270 mutex_unlock(&mvm->mutex);
271
272 if (temp < 0)
273 return temp;
274
275 pos = scnprintf(buf , sizeof(buf), "%d\n", temp);
276
277 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
278}
279
280static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
281 size_t count, loff_t *ppos)
282{
283 struct iwl_mvm *mvm = file->private_data;
284 struct ieee80211_sta *sta;
285 char buf[400];
286 int i, pos = 0, bufsz = sizeof(buf);
287
288 mutex_lock(&mvm->mutex);
289
290 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
291 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
292 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
293 lockdep_is_held(&mvm->mutex));
294 if (!sta)
295 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
296 else if (IS_ERR(sta))
297 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
298 PTR_ERR(sta));
299 else
300 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
301 sta->addr);
302 }
303
304 mutex_unlock(&mvm->mutex);
305
306 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
307}
308
309static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
310 char __user *user_buf,
311 size_t count, loff_t *ppos)
312{
313 struct iwl_mvm *mvm = file->private_data;
314 char buf[64];
315 int bufsz = sizeof(buf);
316 int pos = 0;
317
318 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
319 mvm->disable_power_off);
320 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
321 mvm->disable_power_off_d3);
322
323 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
324}
325
326static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
327 size_t count, loff_t *ppos)
328{
329 int ret, val;
330
331 if (!mvm->ucode_loaded)
332 return -EIO;
333
334 if (!strncmp("disable_power_off_d0=", buf, 21)) {
335 if (sscanf(buf + 21, "%d", &val) != 1)
336 return -EINVAL;
337 mvm->disable_power_off = val;
338 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
339 if (sscanf(buf + 21, "%d", &val) != 1)
340 return -EINVAL;
341 mvm->disable_power_off_d3 = val;
342 } else {
343 return -EINVAL;
344 }
345
346 mutex_lock(&mvm->mutex);
347 ret = iwl_mvm_power_update_device(mvm);
348 mutex_unlock(&mvm->mutex);
349
350 return ret ?: count;
351}
352
353#define BT_MBOX_MSG(_notif, _num, _field) \
354 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
355 >> BT_MBOX##_num##_##_field##_POS)
356
357
358#define BT_MBOX_PRINT(_num, _field, _end) \
359 pos += scnprintf(buf + pos, bufsz - pos, \
360 "\t%s: %d%s", \
361 #_field, \
362 BT_MBOX_MSG(notif, _num, _field), \
363 true ? "\n" : ", ");
364
365static
366int iwl_mvm_coex_dump_mbox(struct iwl_bt_coex_profile_notif *notif, char *buf,
367 int pos, int bufsz)
368{
369 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
370
371 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
372 BT_MBOX_PRINT(0, LE_PROF1, false);
373 BT_MBOX_PRINT(0, LE_PROF2, false);
374 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
375 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
376 BT_MBOX_PRINT(0, INBAND_S, false);
377 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
378 BT_MBOX_PRINT(0, LE_SCAN, false);
379 BT_MBOX_PRINT(0, LE_ADV, false);
380 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
381 BT_MBOX_PRINT(0, OPEN_CON_1, true);
382
383 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
384
385 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
386 BT_MBOX_PRINT(1, IP_SR, false);
387 BT_MBOX_PRINT(1, LE_MSTR, false);
388 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
389 BT_MBOX_PRINT(1, MSG_TYPE, false);
390 BT_MBOX_PRINT(1, SSN, true);
391
392 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
393
394 BT_MBOX_PRINT(2, SNIFF_ACT, false);
395 BT_MBOX_PRINT(2, PAG, false);
396 BT_MBOX_PRINT(2, INQUIRY, false);
397 BT_MBOX_PRINT(2, CONN, false);
398 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
399 BT_MBOX_PRINT(2, DISC, false);
400 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
401 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
402 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
403 BT_MBOX_PRINT(2, SCO_DURATION, true);
404
405 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
406
407 BT_MBOX_PRINT(3, SCO_STATE, false);
408 BT_MBOX_PRINT(3, SNIFF_STATE, false);
409 BT_MBOX_PRINT(3, A2DP_STATE, false);
410 BT_MBOX_PRINT(3, ACL_STATE, false);
411 BT_MBOX_PRINT(3, MSTR_STATE, false);
412 BT_MBOX_PRINT(3, OBX_STATE, false);
413 BT_MBOX_PRINT(3, OPEN_CON_2, false);
414 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
415 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
416 BT_MBOX_PRINT(3, INBAND_P, false);
417 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
418 BT_MBOX_PRINT(3, SSN_2, false);
419 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
420
421 return pos;
422}
423
424static
425int iwl_mvm_coex_dump_mbox_old(struct iwl_bt_coex_profile_notif_old *notif,
426 char *buf, int pos, int bufsz)
427{
428 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
429
430 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
431 BT_MBOX_PRINT(0, LE_PROF1, false);
432 BT_MBOX_PRINT(0, LE_PROF2, false);
433 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
434 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
435 BT_MBOX_PRINT(0, INBAND_S, false);
436 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
437 BT_MBOX_PRINT(0, LE_SCAN, false);
438 BT_MBOX_PRINT(0, LE_ADV, false);
439 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
440 BT_MBOX_PRINT(0, OPEN_CON_1, true);
441
442 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
443
444 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
445 BT_MBOX_PRINT(1, IP_SR, false);
446 BT_MBOX_PRINT(1, LE_MSTR, false);
447 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
448 BT_MBOX_PRINT(1, MSG_TYPE, false);
449 BT_MBOX_PRINT(1, SSN, true);
450
451 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
452
453 BT_MBOX_PRINT(2, SNIFF_ACT, false);
454 BT_MBOX_PRINT(2, PAG, false);
455 BT_MBOX_PRINT(2, INQUIRY, false);
456 BT_MBOX_PRINT(2, CONN, false);
457 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
458 BT_MBOX_PRINT(2, DISC, false);
459 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
460 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
461 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
462 BT_MBOX_PRINT(2, SCO_DURATION, true);
463
464 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
465
466 BT_MBOX_PRINT(3, SCO_STATE, false);
467 BT_MBOX_PRINT(3, SNIFF_STATE, false);
468 BT_MBOX_PRINT(3, A2DP_STATE, false);
469 BT_MBOX_PRINT(3, ACL_STATE, false);
470 BT_MBOX_PRINT(3, MSTR_STATE, false);
471 BT_MBOX_PRINT(3, OBX_STATE, false);
472 BT_MBOX_PRINT(3, OPEN_CON_2, false);
473 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
474 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
475 BT_MBOX_PRINT(3, INBAND_P, false);
476 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
477 BT_MBOX_PRINT(3, SSN_2, false);
478 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
479
480 return pos;
481}
482
483static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
484 size_t count, loff_t *ppos)
485{
486 struct iwl_mvm *mvm = file->private_data;
487 char *buf;
488 int ret, pos = 0, bufsz = sizeof(char) * 1024;
489
490 buf = kmalloc(bufsz, GFP_KERNEL);
491 if (!buf)
492 return -ENOMEM;
493
494 mutex_lock(&mvm->mutex);
495
496 if (!fw_has_api(&mvm->fw->ucode_capa,
497 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
498 struct iwl_bt_coex_profile_notif_old *notif =
499 &mvm->last_bt_notif_old;
500
501 pos += iwl_mvm_coex_dump_mbox_old(notif, buf, pos, bufsz);
502
503 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
504 notif->bt_ci_compliance);
505 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
506 le32_to_cpu(notif->primary_ch_lut));
507 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
508 le32_to_cpu(notif->secondary_ch_lut));
509 pos += scnprintf(buf+pos,
510 bufsz-pos, "bt_activity_grading = %d\n",
511 le32_to_cpu(notif->bt_activity_grading));
512 pos += scnprintf(buf+pos, bufsz-pos,
513 "antenna isolation = %d CORUN LUT index = %d\n",
514 mvm->last_ant_isol, mvm->last_corun_lut);
515 } else {
516 struct iwl_bt_coex_profile_notif *notif =
517 &mvm->last_bt_notif;
518
519 pos += iwl_mvm_coex_dump_mbox(notif, buf, pos, bufsz);
520
521 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
522 notif->bt_ci_compliance);
523 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
524 le32_to_cpu(notif->primary_ch_lut));
525 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
526 le32_to_cpu(notif->secondary_ch_lut));
527 pos += scnprintf(buf+pos,
528 bufsz-pos, "bt_activity_grading = %d\n",
529 le32_to_cpu(notif->bt_activity_grading));
530 pos += scnprintf(buf+pos, bufsz-pos,
531 "antenna isolation = %d CORUN LUT index = %d\n",
532 mvm->last_ant_isol, mvm->last_corun_lut);
533 }
534
535 mutex_unlock(&mvm->mutex);
536
537 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
538 kfree(buf);
539
540 return ret;
541}
542#undef BT_MBOX_PRINT
543
544static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
545 size_t count, loff_t *ppos)
546{
547 struct iwl_mvm *mvm = file->private_data;
548 char buf[256];
549 int bufsz = sizeof(buf);
550 int pos = 0;
551
552 mutex_lock(&mvm->mutex);
553
554 if (!fw_has_api(&mvm->fw->ucode_capa,
555 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
556 struct iwl_bt_coex_ci_cmd_old *cmd = &mvm->last_bt_ci_cmd_old;
557
558 pos += scnprintf(buf+pos, bufsz-pos,
559 "Channel inhibition CMD\n");
560 pos += scnprintf(buf+pos, bufsz-pos,
561 "\tPrimary Channel Bitmap 0x%016llx\n",
562 le64_to_cpu(cmd->bt_primary_ci));
563 pos += scnprintf(buf+pos, bufsz-pos,
564 "\tSecondary Channel Bitmap 0x%016llx\n",
565 le64_to_cpu(cmd->bt_secondary_ci));
566
567 pos += scnprintf(buf+pos, bufsz-pos,
568 "BT Configuration CMD - 0=default, 1=never, 2=always\n");
569 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill msk idx %d\n",
570 mvm->bt_ack_kill_msk[0]);
571 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill msk idx %d\n",
572 mvm->bt_cts_kill_msk[0]);
573
574 } else {
575 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
576
577 pos += scnprintf(buf+pos, bufsz-pos,
578 "Channel inhibition CMD\n");
579 pos += scnprintf(buf+pos, bufsz-pos,
580 "\tPrimary Channel Bitmap 0x%016llx\n",
581 le64_to_cpu(cmd->bt_primary_ci));
582 pos += scnprintf(buf+pos, bufsz-pos,
583 "\tSecondary Channel Bitmap 0x%016llx\n",
584 le64_to_cpu(cmd->bt_secondary_ci));
585 }
586
587 mutex_unlock(&mvm->mutex);
588
589 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
590}
591
592static ssize_t
593iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf,
594 size_t count, loff_t *ppos)
595{
596 u32 bt_tx_prio;
597
598 if (sscanf(buf, "%u", &bt_tx_prio) != 1)
599 return -EINVAL;
600 if (bt_tx_prio > 4)
601 return -EINVAL;
602
603 mvm->bt_tx_prio = bt_tx_prio;
604
605 return count;
606}
607
608static ssize_t
609iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf,
610 size_t count, loff_t *ppos)
611{
612 static const char * const modes_str[BT_FORCE_ANT_MAX] = {
613 [BT_FORCE_ANT_DIS] = "dis",
614 [BT_FORCE_ANT_AUTO] = "auto",
615 [BT_FORCE_ANT_BT] = "bt",
616 [BT_FORCE_ANT_WIFI] = "wifi",
617 };
618 int ret, bt_force_ant_mode;
619
620 for (bt_force_ant_mode = 0;
621 bt_force_ant_mode < ARRAY_SIZE(modes_str);
622 bt_force_ant_mode++) {
623 if (!strcmp(buf, modes_str[bt_force_ant_mode]))
624 break;
625 }
626
627 if (bt_force_ant_mode >= ARRAY_SIZE(modes_str))
628 return -EINVAL;
629
630 ret = 0;
631 mutex_lock(&mvm->mutex);
632 if (mvm->bt_force_ant_mode == bt_force_ant_mode)
633 goto out;
634
635 mvm->bt_force_ant_mode = bt_force_ant_mode;
636 IWL_DEBUG_COEX(mvm, "Force mode: %s\n",
637 modes_str[mvm->bt_force_ant_mode]);
638 ret = iwl_send_bt_init_conf(mvm);
639
640out:
641 mutex_unlock(&mvm->mutex);
642 return ret ?: count;
643}
644
645#define PRINT_STATS_LE32(_struct, _memb) \
646 pos += scnprintf(buf + pos, bufsz - pos, \
647 fmt_table, #_memb, \
648 le32_to_cpu(_struct->_memb))
649
650static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
651 char __user *user_buf, size_t count,
652 loff_t *ppos)
653{
654 struct iwl_mvm *mvm = file->private_data;
655 static const char *fmt_table = "\t%-30s %10u\n";
656 static const char *fmt_header = "%-32s\n";
657 int pos = 0;
658 char *buf;
659 int ret;
660 /* 43 is the size of each data line, 33 is the size of each header */
661 size_t bufsz =
662 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
663 (4 * 33) + 1;
664
665 struct mvm_statistics_rx_phy *ofdm;
666 struct mvm_statistics_rx_phy *cck;
667 struct mvm_statistics_rx_non_phy *general;
668 struct mvm_statistics_rx_ht_phy *ht;
669
670 buf = kzalloc(bufsz, GFP_KERNEL);
671 if (!buf)
672 return -ENOMEM;
673
674 mutex_lock(&mvm->mutex);
675
676 ofdm = &mvm->rx_stats.ofdm;
677 cck = &mvm->rx_stats.cck;
678 general = &mvm->rx_stats.general;
679 ht = &mvm->rx_stats.ofdm_ht;
680
681 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
682 "Statistics_Rx - OFDM");
683 PRINT_STATS_LE32(ofdm, ina_cnt);
684 PRINT_STATS_LE32(ofdm, fina_cnt);
685 PRINT_STATS_LE32(ofdm, plcp_err);
686 PRINT_STATS_LE32(ofdm, crc32_err);
687 PRINT_STATS_LE32(ofdm, overrun_err);
688 PRINT_STATS_LE32(ofdm, early_overrun_err);
689 PRINT_STATS_LE32(ofdm, crc32_good);
690 PRINT_STATS_LE32(ofdm, false_alarm_cnt);
691 PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
692 PRINT_STATS_LE32(ofdm, sfd_timeout);
693 PRINT_STATS_LE32(ofdm, fina_timeout);
694 PRINT_STATS_LE32(ofdm, unresponded_rts);
695 PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
696 PRINT_STATS_LE32(ofdm, sent_ack_cnt);
697 PRINT_STATS_LE32(ofdm, sent_cts_cnt);
698 PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
699 PRINT_STATS_LE32(ofdm, dsp_self_kill);
700 PRINT_STATS_LE32(ofdm, mh_format_err);
701 PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
702 PRINT_STATS_LE32(ofdm, reserved);
703
704 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
705 "Statistics_Rx - CCK");
706 PRINT_STATS_LE32(cck, ina_cnt);
707 PRINT_STATS_LE32(cck, fina_cnt);
708 PRINT_STATS_LE32(cck, plcp_err);
709 PRINT_STATS_LE32(cck, crc32_err);
710 PRINT_STATS_LE32(cck, overrun_err);
711 PRINT_STATS_LE32(cck, early_overrun_err);
712 PRINT_STATS_LE32(cck, crc32_good);
713 PRINT_STATS_LE32(cck, false_alarm_cnt);
714 PRINT_STATS_LE32(cck, fina_sync_err_cnt);
715 PRINT_STATS_LE32(cck, sfd_timeout);
716 PRINT_STATS_LE32(cck, fina_timeout);
717 PRINT_STATS_LE32(cck, unresponded_rts);
718 PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
719 PRINT_STATS_LE32(cck, sent_ack_cnt);
720 PRINT_STATS_LE32(cck, sent_cts_cnt);
721 PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
722 PRINT_STATS_LE32(cck, dsp_self_kill);
723 PRINT_STATS_LE32(cck, mh_format_err);
724 PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
725 PRINT_STATS_LE32(cck, reserved);
726
727 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
728 "Statistics_Rx - GENERAL");
729 PRINT_STATS_LE32(general, bogus_cts);
730 PRINT_STATS_LE32(general, bogus_ack);
731 PRINT_STATS_LE32(general, non_bssid_frames);
732 PRINT_STATS_LE32(general, filtered_frames);
733 PRINT_STATS_LE32(general, non_channel_beacons);
734 PRINT_STATS_LE32(general, channel_beacons);
735 PRINT_STATS_LE32(general, num_missed_bcon);
736 PRINT_STATS_LE32(general, adc_rx_saturation_time);
737 PRINT_STATS_LE32(general, ina_detection_search_time);
738 PRINT_STATS_LE32(general, beacon_silence_rssi_a);
739 PRINT_STATS_LE32(general, beacon_silence_rssi_b);
740 PRINT_STATS_LE32(general, beacon_silence_rssi_c);
741 PRINT_STATS_LE32(general, interference_data_flag);
742 PRINT_STATS_LE32(general, channel_load);
743 PRINT_STATS_LE32(general, dsp_false_alarms);
744 PRINT_STATS_LE32(general, beacon_rssi_a);
745 PRINT_STATS_LE32(general, beacon_rssi_b);
746 PRINT_STATS_LE32(general, beacon_rssi_c);
747 PRINT_STATS_LE32(general, beacon_energy_a);
748 PRINT_STATS_LE32(general, beacon_energy_b);
749 PRINT_STATS_LE32(general, beacon_energy_c);
750 PRINT_STATS_LE32(general, num_bt_kills);
751 PRINT_STATS_LE32(general, mac_id);
752 PRINT_STATS_LE32(general, directed_data_mpdu);
753
754 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
755 "Statistics_Rx - HT");
756 PRINT_STATS_LE32(ht, plcp_err);
757 PRINT_STATS_LE32(ht, overrun_err);
758 PRINT_STATS_LE32(ht, early_overrun_err);
759 PRINT_STATS_LE32(ht, crc32_good);
760 PRINT_STATS_LE32(ht, crc32_err);
761 PRINT_STATS_LE32(ht, mh_format_err);
762 PRINT_STATS_LE32(ht, agg_crc32_good);
763 PRINT_STATS_LE32(ht, agg_mpdu_cnt);
764 PRINT_STATS_LE32(ht, agg_cnt);
765 PRINT_STATS_LE32(ht, unsupport_mcs);
766
767 mutex_unlock(&mvm->mutex);
768
769 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
770 kfree(buf);
771
772 return ret;
773}
774#undef PRINT_STAT_LE32
775
776static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm,
777 char __user *user_buf, size_t count,
778 loff_t *ppos,
779 struct iwl_mvm_frame_stats *stats)
780{
781 char *buff, *pos, *endpos;
782 int idx, i;
783 int ret;
784 static const size_t bufsz = 1024;
785
786 buff = kmalloc(bufsz, GFP_KERNEL);
787 if (!buff)
788 return -ENOMEM;
789
790 spin_lock_bh(&mvm->drv_stats_lock);
791
792 pos = buff;
793 endpos = pos + bufsz;
794
795 pos += scnprintf(pos, endpos - pos,
796 "Legacy/HT/VHT\t:\t%d/%d/%d\n",
797 stats->legacy_frames,
798 stats->ht_frames,
799 stats->vht_frames);
800 pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n",
801 stats->bw_20_frames,
802 stats->bw_40_frames,
803 stats->bw_80_frames);
804 pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n",
805 stats->ngi_frames,
806 stats->sgi_frames);
807 pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n",
808 stats->siso_frames,
809 stats->mimo2_frames);
810 pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n",
811 stats->fail_frames,
812 stats->success_frames);
813 pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n",
814 stats->agg_frames);
815 pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n",
816 stats->ampdu_count);
817 pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n",
818 stats->ampdu_count > 0 ?
819 (stats->agg_frames / stats->ampdu_count) : 0);
820
821 pos += scnprintf(pos, endpos - pos, "Last Rates\n");
822
823 idx = stats->last_frame_idx - 1;
824 for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) {
825 idx = (idx + 1) % ARRAY_SIZE(stats->last_rates);
826 if (stats->last_rates[idx] == 0)
827 continue;
828 pos += scnprintf(pos, endpos - pos, "Rate[%d]: ",
829 (int)(ARRAY_SIZE(stats->last_rates) - i));
830 pos += rs_pretty_print_rate(pos, stats->last_rates[idx]);
831 }
832 spin_unlock_bh(&mvm->drv_stats_lock);
833
834 ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);
835 kfree(buff);
836
837 return ret;
838}
839
840static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file,
841 char __user *user_buf, size_t count,
842 loff_t *ppos)
843{
844 struct iwl_mvm *mvm = file->private_data;
845
846 return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos,
847 &mvm->drv_rx_stats);
848}
849
850static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
851 size_t count, loff_t *ppos)
852{
853 int ret;
854
855 mutex_lock(&mvm->mutex);
856
857 /* allow one more restart that we're provoking here */
858 if (mvm->restart_fw >= 0)
859 mvm->restart_fw++;
860
861 /* take the return value to make compiler happy - it will fail anyway */
862 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL);
863
864 mutex_unlock(&mvm->mutex);
865
866 return count;
867}
868
869static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
870 size_t count, loff_t *ppos)
871{
872 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_NMI);
873 if (ret)
874 return ret;
875
876 iwl_force_nmi(mvm->trans);
877
878 iwl_mvm_unref(mvm, IWL_MVM_REF_NMI);
879
880 return count;
881}
882
883static ssize_t
884iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
885 char __user *user_buf,
886 size_t count, loff_t *ppos)
887{
888 struct iwl_mvm *mvm = file->private_data;
889 int pos = 0;
890 char buf[32];
891 const size_t bufsz = sizeof(buf);
892
893 /* print which antennas were set for the scan command by the user */
894 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
895 if (mvm->scan_rx_ant & ANT_A)
896 pos += scnprintf(buf + pos, bufsz - pos, "A");
897 if (mvm->scan_rx_ant & ANT_B)
898 pos += scnprintf(buf + pos, bufsz - pos, "B");
899 if (mvm->scan_rx_ant & ANT_C)
900 pos += scnprintf(buf + pos, bufsz - pos, "C");
901 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
902
903 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
904}
905
906static ssize_t
907iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
908 size_t count, loff_t *ppos)
909{
910 u8 scan_rx_ant;
911
912 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
913 return -EINVAL;
914 if (scan_rx_ant > ANT_ABC)
915 return -EINVAL;
916 if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
917 return -EINVAL;
918
919 if (mvm->scan_rx_ant != scan_rx_ant) {
920 mvm->scan_rx_ant = scan_rx_ant;
921 if (fw_has_capa(&mvm->fw->ucode_capa,
922 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
923 iwl_mvm_config_scan(mvm);
924 }
925
926 return count;
927}
928
929static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
930 char __user *user_buf,
931 size_t count, loff_t *ppos)
932{
933 struct iwl_mvm *mvm = file->private_data;
934 int conf;
935 char buf[8];
936 const size_t bufsz = sizeof(buf);
937 int pos = 0;
938
939 mutex_lock(&mvm->mutex);
940 conf = mvm->fw_dbg_conf;
941 mutex_unlock(&mvm->mutex);
942
943 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
944
945 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
946}
947
948static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
949 char *buf, size_t count,
950 loff_t *ppos)
951{
952 unsigned int conf_id;
953 int ret;
954
955 ret = kstrtouint(buf, 0, &conf_id);
956 if (ret)
957 return ret;
958
959 if (WARN_ON(conf_id >= FW_DBG_CONF_MAX))
960 return -EINVAL;
961
962 mutex_lock(&mvm->mutex);
963 ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
964 mutex_unlock(&mvm->mutex);
965
966 return ret ?: count;
967}
968
969static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
970 char *buf, size_t count,
971 loff_t *ppos)
972{
973 int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
974
975 if (ret)
976 return ret;
977
978 iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, NULL, 0, NULL);
979
980 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
981
982 return count;
983}
984
985#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
986#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
987static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
988 char __user *user_buf,
989 size_t count, loff_t *ppos)
990{
991 struct iwl_mvm *mvm = file->private_data;
992 struct iwl_bcast_filter_cmd cmd;
993 const struct iwl_fw_bcast_filter *filter;
994 char *buf;
995 int bufsz = 1024;
996 int i, j, pos = 0;
997 ssize_t ret;
998
999 buf = kzalloc(bufsz, GFP_KERNEL);
1000 if (!buf)
1001 return -ENOMEM;
1002
1003 mutex_lock(&mvm->mutex);
1004 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1005 ADD_TEXT("None\n");
1006 mutex_unlock(&mvm->mutex);
1007 goto out;
1008 }
1009 mutex_unlock(&mvm->mutex);
1010
1011 for (i = 0; cmd.filters[i].attrs[0].mask; i++) {
1012 filter = &cmd.filters[i];
1013
1014 ADD_TEXT("Filter [%d]:\n", i);
1015 ADD_TEXT("\tDiscard=%d\n", filter->discard);
1016 ADD_TEXT("\tFrame Type: %s\n",
1017 filter->frame_type ? "IPv4" : "Generic");
1018
1019 for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) {
1020 const struct iwl_fw_bcast_filter_attr *attr;
1021
1022 attr = &filter->attrs[j];
1023 if (!attr->mask)
1024 break;
1025
1026 ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n",
1027 j, attr->offset,
1028 attr->offset_type ? "IP End" :
1029 "Payload Start",
1030 be32_to_cpu(attr->mask),
1031 be32_to_cpu(attr->val),
1032 le16_to_cpu(attr->reserved1));
1033 }
1034 }
1035out:
1036 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1037 kfree(buf);
1038 return ret;
1039}
1040
1041static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf,
1042 size_t count, loff_t *ppos)
1043{
1044 int pos, next_pos;
1045 struct iwl_fw_bcast_filter filter = {};
1046 struct iwl_bcast_filter_cmd cmd;
1047 u32 filter_id, attr_id, mask, value;
1048 int err = 0;
1049
1050 if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard,
1051 &filter.frame_type, &pos) != 3)
1052 return -EINVAL;
1053
1054 if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) ||
1055 filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4)
1056 return -EINVAL;
1057
1058 for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs);
1059 attr_id++) {
1060 struct iwl_fw_bcast_filter_attr *attr =
1061 &filter.attrs[attr_id];
1062
1063 if (pos >= count)
1064 break;
1065
1066 if (sscanf(&buf[pos], "%hhi %hhi %i %i %n",
1067 &attr->offset, &attr->offset_type,
1068 &mask, &value, &next_pos) != 4)
1069 return -EINVAL;
1070
1071 attr->mask = cpu_to_be32(mask);
1072 attr->val = cpu_to_be32(value);
1073 if (mask)
1074 filter.num_attrs++;
1075
1076 pos += next_pos;
1077 }
1078
1079 mutex_lock(&mvm->mutex);
1080 memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id],
1081 &filter, sizeof(filter));
1082
1083 /* send updated bcast filtering configuration */
1084 if (mvm->dbgfs_bcast_filtering.override &&
1085 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1086 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1087 sizeof(cmd), &cmd);
1088 mutex_unlock(&mvm->mutex);
1089
1090 return err ?: count;
1091}
1092
1093static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file,
1094 char __user *user_buf,
1095 size_t count, loff_t *ppos)
1096{
1097 struct iwl_mvm *mvm = file->private_data;
1098 struct iwl_bcast_filter_cmd cmd;
1099 char *buf;
1100 int bufsz = 1024;
1101 int i, pos = 0;
1102 ssize_t ret;
1103
1104 buf = kzalloc(bufsz, GFP_KERNEL);
1105 if (!buf)
1106 return -ENOMEM;
1107
1108 mutex_lock(&mvm->mutex);
1109 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) {
1110 ADD_TEXT("None\n");
1111 mutex_unlock(&mvm->mutex);
1112 goto out;
1113 }
1114 mutex_unlock(&mvm->mutex);
1115
1116 for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) {
1117 const struct iwl_fw_bcast_mac *mac = &cmd.macs[i];
1118
1119 ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n",
1120 i, mac->default_discard, mac->attached_filters);
1121 }
1122out:
1123 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1124 kfree(buf);
1125 return ret;
1126}
1127
1128static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm,
1129 char *buf, size_t count,
1130 loff_t *ppos)
1131{
1132 struct iwl_bcast_filter_cmd cmd;
1133 struct iwl_fw_bcast_mac mac = {};
1134 u32 mac_id, attached_filters;
1135 int err = 0;
1136
1137 if (!mvm->bcast_filters)
1138 return -ENOENT;
1139
1140 if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard,
1141 &attached_filters) != 3)
1142 return -EINVAL;
1143
1144 if (mac_id >= ARRAY_SIZE(cmd.macs) ||
1145 mac.default_discard > 1 ||
1146 attached_filters >= BIT(ARRAY_SIZE(cmd.filters)))
1147 return -EINVAL;
1148
1149 mac.attached_filters = cpu_to_le16(attached_filters);
1150
1151 mutex_lock(&mvm->mutex);
1152 memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id],
1153 &mac, sizeof(mac));
1154
1155 /* send updated bcast filtering configuration */
1156 if (mvm->dbgfs_bcast_filtering.override &&
1157 iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1158 err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1159 sizeof(cmd), &cmd);
1160 mutex_unlock(&mvm->mutex);
1161
1162 return err ?: count;
1163}
1164#endif
1165
1166#ifdef CONFIG_PM_SLEEP
1167static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
1168 size_t count, loff_t *ppos)
1169{
1170 int store;
1171
1172 if (sscanf(buf, "%d", &store) != 1)
1173 return -EINVAL;
1174
1175 mvm->store_d3_resume_sram = store;
1176
1177 return count;
1178}
1179
1180static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1181 size_t count, loff_t *ppos)
1182{
1183 struct iwl_mvm *mvm = file->private_data;
1184 const struct fw_img *img;
1185 int ofs, len, pos = 0;
1186 size_t bufsz, ret;
1187 char *buf;
1188 u8 *ptr = mvm->d3_resume_sram;
1189
1190 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1191 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1192
1193 bufsz = len * 4 + 256;
1194 buf = kzalloc(bufsz, GFP_KERNEL);
1195 if (!buf)
1196 return -ENOMEM;
1197
1198 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1199 mvm->store_d3_resume_sram ? "en" : "dis");
1200
1201 if (ptr) {
1202 for (ofs = 0; ofs < len; ofs += 16) {
1203 pos += scnprintf(buf + pos, bufsz - pos,
1204 "0x%.4x %16ph\n", ofs, ptr + ofs);
1205 }
1206 } else {
1207 pos += scnprintf(buf + pos, bufsz - pos,
1208 "(no data captured)\n");
1209 }
1210
1211 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1212
1213 kfree(buf);
1214
1215 return ret;
1216}
1217#endif
1218
1219#define PRINT_MVM_REF(ref) do { \
1220 if (mvm->refs[ref]) \
1221 pos += scnprintf(buf + pos, bufsz - pos, \
1222 "\t(0x%lx): %d %s\n", \
1223 BIT(ref), mvm->refs[ref], #ref); \
1224} while (0)
1225
1226static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
1227 char __user *user_buf,
1228 size_t count, loff_t *ppos)
1229{
1230 struct iwl_mvm *mvm = file->private_data;
1231 int i, pos = 0;
1232 char buf[256];
1233 const size_t bufsz = sizeof(buf);
1234 u32 refs = 0;
1235
1236 for (i = 0; i < IWL_MVM_REF_COUNT; i++)
1237 if (mvm->refs[i])
1238 refs |= BIT(i);
1239
1240 pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%x\n",
1241 refs);
1242
1243 PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);
1244 PRINT_MVM_REF(IWL_MVM_REF_SCAN);
1245 PRINT_MVM_REF(IWL_MVM_REF_ROC);
1246 PRINT_MVM_REF(IWL_MVM_REF_ROC_AUX);
1247 PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);
1248 PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);
1249 PRINT_MVM_REF(IWL_MVM_REF_USER);
1250 PRINT_MVM_REF(IWL_MVM_REF_TX);
1251 PRINT_MVM_REF(IWL_MVM_REF_TX_AGG);
1252 PRINT_MVM_REF(IWL_MVM_REF_ADD_IF);
1253 PRINT_MVM_REF(IWL_MVM_REF_START_AP);
1254 PRINT_MVM_REF(IWL_MVM_REF_BSS_CHANGED);
1255 PRINT_MVM_REF(IWL_MVM_REF_PREPARE_TX);
1256 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_TDLS);
1257 PRINT_MVM_REF(IWL_MVM_REF_CHECK_CTKILL);
1258 PRINT_MVM_REF(IWL_MVM_REF_PRPH_READ);
1259 PRINT_MVM_REF(IWL_MVM_REF_PRPH_WRITE);
1260 PRINT_MVM_REF(IWL_MVM_REF_NMI);
1261 PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
1262 PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
1263 PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
1264 PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
1265
1266 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1267}
1268
1269static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf,
1270 size_t count, loff_t *ppos)
1271{
1272 unsigned long value;
1273 int ret;
1274 bool taken;
1275
1276 ret = kstrtoul(buf, 10, &value);
1277 if (ret < 0)
1278 return ret;
1279
1280 mutex_lock(&mvm->mutex);
1281
1282 taken = mvm->refs[IWL_MVM_REF_USER];
1283 if (value == 1 && !taken)
1284 iwl_mvm_ref(mvm, IWL_MVM_REF_USER);
1285 else if (value == 0 && taken)
1286 iwl_mvm_unref(mvm, IWL_MVM_REF_USER);
1287 else
1288 ret = -EINVAL;
1289
1290 mutex_unlock(&mvm->mutex);
1291
1292 if (ret < 0)
1293 return ret;
1294 return count;
1295}
1296
1297#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
1298 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1299#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
1300 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
1301#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \
1302 if (!debugfs_create_file(alias, mode, parent, mvm, \
1303 &iwl_dbgfs_##name##_ops)) \
1304 goto err; \
1305 } while (0)
1306#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \
1307 MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode)
1308
1309static ssize_t
1310iwl_dbgfs_prph_reg_read(struct file *file,
1311 char __user *user_buf,
1312 size_t count, loff_t *ppos)
1313{
1314 struct iwl_mvm *mvm = file->private_data;
1315 int pos = 0;
1316 char buf[32];
1317 const size_t bufsz = sizeof(buf);
1318 int ret;
1319
1320 if (!mvm->dbgfs_prph_reg_addr)
1321 return -EINVAL;
1322
1323 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_READ);
1324 if (ret)
1325 return ret;
1326
1327 pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n",
1328 mvm->dbgfs_prph_reg_addr,
1329 iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr));
1330
1331 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_READ);
1332
1333 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1334}
1335
1336static ssize_t
1337iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf,
1338 size_t count, loff_t *ppos)
1339{
1340 u8 args;
1341 u32 value;
1342 int ret;
1343
1344 args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value);
1345 /* if we only want to set the reg address - nothing more to do */
1346 if (args == 1)
1347 goto out;
1348
1349 /* otherwise, make sure we have both address and value */
1350 if (args != 2)
1351 return -EINVAL;
1352
1353 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
1354 if (ret)
1355 return ret;
1356
1357 iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value);
1358
1359 iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
1360out:
1361 return count;
1362}
1363
1364static ssize_t
1365iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
1366 size_t count, loff_t *ppos)
1367{
1368 int ret;
1369
1370 mutex_lock(&mvm->mutex);
1371 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1372 mutex_unlock(&mvm->mutex);
1373
1374 return ret ?: count;
1375}
1376
1377MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
1378
1379/* Device wide debugfs entries */
1380MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
1381MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
1382MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8);
1383MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
1384MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64);
1385MVM_DEBUGFS_READ_FILE_OPS(nic_temp);
1386MVM_DEBUGFS_READ_FILE_OPS(stations);
1387MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1388MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1389MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
1390MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1391MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);
1392MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
1393MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
1394MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
1395MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
1396MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
1397MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
1398MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
1399MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
1400
1401#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1402MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
1403MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
1404#endif
1405
1406#ifdef CONFIG_PM_SLEEP
1407MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
1408#endif
1409
1410int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1411{
1412 struct dentry *bcast_dir __maybe_unused;
1413 char buf[100];
1414
1415 spin_lock_init(&mvm->drv_stats_lock);
1416
1417 mvm->debugfs_dir = dbgfs_dir;
1418
1419 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1420 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1421 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1422 MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,
1423 S_IWUSR | S_IRUSR);
1424 MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR);
1425 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1426 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1427 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1428 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1429 S_IRUSR | S_IWUSR);
1430 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1431 MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);
1432 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1433 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
1434 MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR);
1435 MVM_DEBUGFS_ADD_FILE(bt_force_ant, mvm->debugfs_dir, S_IWUSR);
1436 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1437 S_IWUSR | S_IRUSR);
1438 MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1439 MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1440 MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1441 MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
1442 MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR);
1443 if (!debugfs_create_bool("enable_scan_iteration_notif",
1444 S_IRUSR | S_IWUSR,
1445 mvm->debugfs_dir,
1446 &mvm->scan_iter_notif_enabled))
1447 goto err;
1448
1449#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1450 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
1451 bcast_dir = debugfs_create_dir("bcast_filtering",
1452 mvm->debugfs_dir);
1453 if (!bcast_dir)
1454 goto err;
1455
1456 if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR,
1457 bcast_dir,
1458 &mvm->dbgfs_bcast_filtering.override))
1459 goto err;
1460
1461 MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters,
1462 bcast_dir, S_IWUSR | S_IRUSR);
1463 MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs,
1464 bcast_dir, S_IWUSR | S_IRUSR);
1465 }
1466#endif
1467
1468#ifdef CONFIG_PM_SLEEP
1469 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1470 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1471 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1472 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1473 goto err;
1474 if (!debugfs_create_u32("last_netdetect_scans", S_IRUSR,
1475 mvm->debugfs_dir, &mvm->last_netdetect_scans))
1476 goto err;
1477#endif
1478
1479 if (!debugfs_create_u8("low_latency_agg_frame_limit", S_IRUSR | S_IWUSR,
1480 mvm->debugfs_dir,
1481 &mvm->low_latency_agg_frame_limit))
1482 goto err;
1483 if (!debugfs_create_u8("ps_disabled", S_IRUSR,
1484 mvm->debugfs_dir, &mvm->ps_disabled))
1485 goto err;
1486 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
1487 mvm->debugfs_dir, &mvm->nvm_hw_blob))
1488 goto err;
1489 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
1490 mvm->debugfs_dir, &mvm->nvm_sw_blob))
1491 goto err;
1492 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
1493 mvm->debugfs_dir, &mvm->nvm_calib_blob))
1494 goto err;
1495 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
1496 mvm->debugfs_dir, &mvm->nvm_prod_blob))
1497 goto err;
1498 if (!debugfs_create_blob("nvm_phy_sku", S_IRUSR,
1499 mvm->debugfs_dir, &mvm->nvm_phy_sku_blob))
1500 goto err;
1501
1502 /*
1503 * Create a symlink with mac80211. It will be removed when mac80211
1504 * exists (before the opmode exists which removes the target.)
1505 */
1506 snprintf(buf, 100, "../../%s/%s",
1507 dbgfs_dir->d_parent->d_parent->d_name.name,
1508 dbgfs_dir->d_parent->d_name.name);
1509 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1510 goto err;
1511
1512 return 0;
1513err:
1514 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1515 return -ENOMEM;
1516}
generated by cgit v1.2.2 (git 2.25.0) at 2025-06-01 18:52:11 -0400