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Merge tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realm...
[deliverable/linux.git] / drivers / net / wireless / 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 - 2013 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63 #include "mvm.h"
64 #include "sta.h"
65 #include "iwl-io.h"
66
67 struct iwl_dbgfs_mvm_ctx {
68 struct iwl_mvm *mvm;
69 struct ieee80211_vif *vif;
70 };
71
72 static ssize_t iwl_dbgfs_tx_flush_write(struct file *file,
73 const char __user *user_buf,
74 size_t count, loff_t *ppos)
75 {
76 struct iwl_mvm *mvm = file->private_data;
77
78 char buf[16];
79 int buf_size, ret;
80 u32 scd_q_msk;
81
82 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
83 return -EIO;
84
85 memset(buf, 0, sizeof(buf));
86 buf_size = min(count, sizeof(buf) - 1);
87 if (copy_from_user(buf, user_buf, buf_size))
88 return -EFAULT;
89
90 if (sscanf(buf, "%x", &scd_q_msk) != 1)
91 return -EINVAL;
92
93 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
94
95 mutex_lock(&mvm->mutex);
96 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
97 mutex_unlock(&mvm->mutex);
98
99 return ret;
100 }
101
102 static ssize_t iwl_dbgfs_sta_drain_write(struct file *file,
103 const char __user *user_buf,
104 size_t count, loff_t *ppos)
105 {
106 struct iwl_mvm *mvm = file->private_data;
107 struct ieee80211_sta *sta;
108
109 char buf[8];
110 int buf_size, sta_id, drain, ret;
111
112 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
113 return -EIO;
114
115 memset(buf, 0, sizeof(buf));
116 buf_size = min(count, sizeof(buf) - 1);
117 if (copy_from_user(buf, user_buf, buf_size))
118 return -EFAULT;
119
120 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
121 return -EINVAL;
122
123 mutex_lock(&mvm->mutex);
124
125 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
126 lockdep_is_held(&mvm->mutex));
127 if (IS_ERR_OR_NULL(sta))
128 ret = -ENOENT;
129 else
130 ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? :
131 count;
132
133 mutex_unlock(&mvm->mutex);
134
135 return ret;
136 }
137
138 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
139 size_t count, loff_t *ppos)
140 {
141 struct iwl_mvm *mvm = file->private_data;
142 const struct fw_img *img;
143 int ofs, len, pos = 0;
144 size_t bufsz, ret;
145 char *buf;
146 u8 *ptr;
147
148 if (!mvm->ucode_loaded)
149 return -EINVAL;
150
151 /* default is to dump the entire data segment */
152 if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
153 img = &mvm->fw->img[mvm->cur_ucode];
154 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
155 len = img->sec[IWL_UCODE_SECTION_DATA].len;
156 } else {
157 ofs = mvm->dbgfs_sram_offset;
158 len = mvm->dbgfs_sram_len;
159 }
160
161 bufsz = len * 4 + 256;
162 buf = kzalloc(bufsz, GFP_KERNEL);
163 if (!buf)
164 return -ENOMEM;
165
166 ptr = kzalloc(len, GFP_KERNEL);
167 if (!ptr) {
168 kfree(buf);
169 return -ENOMEM;
170 }
171
172 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
173 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
174
175 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
176 for (ofs = 0; ofs < len; ofs += 16) {
177 pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs);
178 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
179 bufsz - pos, false);
180 pos += strlen(buf + pos);
181 if (bufsz - pos > 0)
182 buf[pos++] = '\n';
183 }
184
185 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
186
187 kfree(buf);
188 kfree(ptr);
189
190 return ret;
191 }
192
193 static ssize_t iwl_dbgfs_sram_write(struct file *file,
194 const char __user *user_buf, size_t count,
195 loff_t *ppos)
196 {
197 struct iwl_mvm *mvm = file->private_data;
198 char buf[64];
199 int buf_size;
200 u32 offset, len;
201
202 memset(buf, 0, sizeof(buf));
203 buf_size = min(count, sizeof(buf) - 1);
204 if (copy_from_user(buf, user_buf, buf_size))
205 return -EFAULT;
206
207 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
208 if ((offset & 0x3) || (len & 0x3))
209 return -EINVAL;
210 mvm->dbgfs_sram_offset = offset;
211 mvm->dbgfs_sram_len = len;
212 } else {
213 mvm->dbgfs_sram_offset = 0;
214 mvm->dbgfs_sram_len = 0;
215 }
216
217 return count;
218 }
219
220 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
221 size_t count, loff_t *ppos)
222 {
223 struct iwl_mvm *mvm = file->private_data;
224 struct ieee80211_sta *sta;
225 char buf[400];
226 int i, pos = 0, bufsz = sizeof(buf);
227
228 mutex_lock(&mvm->mutex);
229
230 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
231 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
232 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
233 lockdep_is_held(&mvm->mutex));
234 if (!sta)
235 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
236 else if (IS_ERR(sta))
237 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
238 PTR_ERR(sta));
239 else
240 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
241 sta->addr);
242 }
243
244 mutex_unlock(&mvm->mutex);
245
246 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
247 }
248
249 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
250 char __user *user_buf,
251 size_t count, loff_t *ppos)
252 {
253 struct iwl_mvm *mvm = file->private_data;
254 char buf[64];
255 int bufsz = sizeof(buf);
256 int pos = 0;
257
258 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
259 mvm->disable_power_off);
260 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
261 mvm->disable_power_off_d3);
262
263 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
264 }
265
266 static ssize_t iwl_dbgfs_disable_power_off_write(struct file *file,
267 const char __user *user_buf,
268 size_t count, loff_t *ppos)
269 {
270 struct iwl_mvm *mvm = file->private_data;
271 char buf[64] = {};
272 int ret;
273 int val;
274
275 if (!mvm->ucode_loaded)
276 return -EIO;
277
278 count = min_t(size_t, count, sizeof(buf) - 1);
279 if (copy_from_user(buf, user_buf, count))
280 return -EFAULT;
281
282 if (!strncmp("disable_power_off_d0=", buf, 21)) {
283 if (sscanf(buf + 21, "%d", &val) != 1)
284 return -EINVAL;
285 mvm->disable_power_off = val;
286 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
287 if (sscanf(buf + 21, "%d", &val) != 1)
288 return -EINVAL;
289 mvm->disable_power_off_d3 = val;
290 } else {
291 return -EINVAL;
292 }
293
294 mutex_lock(&mvm->mutex);
295 ret = iwl_mvm_power_update_device_mode(mvm);
296 mutex_unlock(&mvm->mutex);
297
298 return ret ?: count;
299 }
300
301 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
302 struct ieee80211_vif *vif,
303 enum iwl_dbgfs_pm_mask param, int val)
304 {
305 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
306 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
307
308 dbgfs_pm->mask |= param;
309
310 switch (param) {
311 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
312 struct ieee80211_hw *hw = mvm->hw;
313 int dtimper = hw->conf.ps_dtim_period ?: 1;
314 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
315
316 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
317 if (val * MSEC_PER_SEC < 3 * dtimper_msec) {
318 IWL_WARN(mvm,
319 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
320 val * MSEC_PER_SEC, 3 * dtimper_msec);
321 }
322 dbgfs_pm->keep_alive_seconds = val;
323 break;
324 }
325 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
326 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
327 val ? "enabled" : "disabled");
328 dbgfs_pm->skip_over_dtim = val;
329 break;
330 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
331 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
332 dbgfs_pm->skip_dtim_periods = val;
333 break;
334 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
335 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
336 dbgfs_pm->rx_data_timeout = val;
337 break;
338 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
339 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
340 dbgfs_pm->tx_data_timeout = val;
341 break;
342 case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
343 IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
344 dbgfs_pm->disable_power_off = val;
345 break;
346 case MVM_DEBUGFS_PM_LPRX_ENA:
347 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
348 dbgfs_pm->lprx_ena = val;
349 break;
350 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
351 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
352 dbgfs_pm->lprx_rssi_threshold = val;
353 break;
354 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
355 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
356 dbgfs_pm->snooze_ena = val;
357 break;
358 }
359 }
360
361 static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
362 const char __user *user_buf,
363 size_t count, loff_t *ppos)
364 {
365 struct ieee80211_vif *vif = file->private_data;
366 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
367 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
368 enum iwl_dbgfs_pm_mask param;
369 char buf[32] = {};
370 int val;
371 int ret;
372
373 count = min_t(size_t, count, sizeof(buf) - 1);
374 if (copy_from_user(buf, user_buf, count))
375 return -EFAULT;
376
377 if (!strncmp("keep_alive=", buf, 11)) {
378 if (sscanf(buf + 11, "%d", &val) != 1)
379 return -EINVAL;
380 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
381 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
382 if (sscanf(buf + 15, "%d", &val) != 1)
383 return -EINVAL;
384 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
385 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
386 if (sscanf(buf + 18, "%d", &val) != 1)
387 return -EINVAL;
388 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
389 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
390 if (sscanf(buf + 16, "%d", &val) != 1)
391 return -EINVAL;
392 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
393 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
394 if (sscanf(buf + 16, "%d", &val) != 1)
395 return -EINVAL;
396 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
397 } else if (!strncmp("disable_power_off=", buf, 18) &&
398 !(mvm->fw->ucode_capa.flags &
399 IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)) {
400 if (sscanf(buf + 18, "%d", &val) != 1)
401 return -EINVAL;
402 param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
403 } else if (!strncmp("lprx=", buf, 5)) {
404 if (sscanf(buf + 5, "%d", &val) != 1)
405 return -EINVAL;
406 param = MVM_DEBUGFS_PM_LPRX_ENA;
407 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
408 if (sscanf(buf + 20, "%d", &val) != 1)
409 return -EINVAL;
410 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
411 POWER_LPRX_RSSI_THRESHOLD_MIN)
412 return -EINVAL;
413 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
414 } else if (!strncmp("snooze_enable=", buf, 14)) {
415 if (sscanf(buf + 14, "%d", &val) != 1)
416 return -EINVAL;
417 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
418 } else {
419 return -EINVAL;
420 }
421
422 mutex_lock(&mvm->mutex);
423 iwl_dbgfs_update_pm(mvm, vif, param, val);
424 ret = iwl_mvm_power_update_mode(mvm, vif);
425 mutex_unlock(&mvm->mutex);
426
427 return ret ?: count;
428 }
429
430 static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
431 char __user *user_buf,
432 size_t count, loff_t *ppos)
433 {
434 struct ieee80211_vif *vif = file->private_data;
435 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
436 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
437 char buf[512];
438 int bufsz = sizeof(buf);
439 int pos;
440
441 pos = iwl_mvm_power_dbgfs_read(mvm, vif, buf, bufsz);
442
443 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
444 }
445
446 static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
447 char __user *user_buf,
448 size_t count, loff_t *ppos)
449 {
450 struct ieee80211_vif *vif = file->private_data;
451 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
452 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
453 u8 ap_sta_id;
454 struct ieee80211_chanctx_conf *chanctx_conf;
455 char buf[512];
456 int bufsz = sizeof(buf);
457 int pos = 0;
458 int i;
459
460 mutex_lock(&mvm->mutex);
461
462 ap_sta_id = mvmvif->ap_sta_id;
463
464 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
465 mvmvif->id, mvmvif->color);
466 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
467 vif->bss_conf.bssid);
468 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
469 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) {
470 pos += scnprintf(buf+pos, bufsz-pos,
471 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
472 i, mvmvif->queue_params[i].txop,
473 mvmvif->queue_params[i].cw_min,
474 mvmvif->queue_params[i].cw_max,
475 mvmvif->queue_params[i].aifs,
476 mvmvif->queue_params[i].uapsd);
477 }
478
479 if (vif->type == NL80211_IFTYPE_STATION &&
480 ap_sta_id != IWL_MVM_STATION_COUNT) {
481 struct ieee80211_sta *sta;
482 struct iwl_mvm_sta *mvm_sta;
483
484 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
485 lockdep_is_held(&mvm->mutex));
486 mvm_sta = (void *)sta->drv_priv;
487 pos += scnprintf(buf+pos, bufsz-pos,
488 "ap_sta_id %d - reduced Tx power %d\n",
489 ap_sta_id, mvm_sta->bt_reduced_txpower);
490 }
491
492 rcu_read_lock();
493 chanctx_conf = rcu_dereference(vif->chanctx_conf);
494 if (chanctx_conf) {
495 pos += scnprintf(buf+pos, bufsz-pos,
496 "idle rx chains %d, active rx chains: %d\n",
497 chanctx_conf->rx_chains_static,
498 chanctx_conf->rx_chains_dynamic);
499 }
500 rcu_read_unlock();
501
502 mutex_unlock(&mvm->mutex);
503
504 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
505 }
506
507 #define BT_MBOX_MSG(_notif, _num, _field) \
508 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
509 >> BT_MBOX##_num##_##_field##_POS)
510
511
512 #define BT_MBOX_PRINT(_num, _field, _end) \
513 pos += scnprintf(buf + pos, bufsz - pos, \
514 "\t%s: %d%s", \
515 #_field, \
516 BT_MBOX_MSG(notif, _num, _field), \
517 true ? "\n" : ", ");
518
519 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
520 size_t count, loff_t *ppos)
521 {
522 struct iwl_mvm *mvm = file->private_data;
523 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
524 char *buf;
525 int ret, pos = 0, bufsz = sizeof(char) * 1024;
526
527 buf = kmalloc(bufsz, GFP_KERNEL);
528 if (!buf)
529 return -ENOMEM;
530
531 mutex_lock(&mvm->mutex);
532
533 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
534
535 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
536 BT_MBOX_PRINT(0, LE_PROF1, false);
537 BT_MBOX_PRINT(0, LE_PROF2, false);
538 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
539 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
540 BT_MBOX_PRINT(0, INBAND_S, false);
541 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
542 BT_MBOX_PRINT(0, LE_SCAN, false);
543 BT_MBOX_PRINT(0, LE_ADV, false);
544 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
545 BT_MBOX_PRINT(0, OPEN_CON_1, true);
546
547 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
548
549 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
550 BT_MBOX_PRINT(1, IP_SR, false);
551 BT_MBOX_PRINT(1, LE_MSTR, false);
552 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
553 BT_MBOX_PRINT(1, MSG_TYPE, false);
554 BT_MBOX_PRINT(1, SSN, true);
555
556 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
557
558 BT_MBOX_PRINT(2, SNIFF_ACT, false);
559 BT_MBOX_PRINT(2, PAG, false);
560 BT_MBOX_PRINT(2, INQUIRY, false);
561 BT_MBOX_PRINT(2, CONN, false);
562 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
563 BT_MBOX_PRINT(2, DISC, false);
564 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
565 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
566 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
567 BT_MBOX_PRINT(2, SCO_DURATION, true);
568
569 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
570
571 BT_MBOX_PRINT(3, SCO_STATE, false);
572 BT_MBOX_PRINT(3, SNIFF_STATE, false);
573 BT_MBOX_PRINT(3, A2DP_STATE, false);
574 BT_MBOX_PRINT(3, ACL_STATE, false);
575 BT_MBOX_PRINT(3, MSTR_STATE, false);
576 BT_MBOX_PRINT(3, OBX_STATE, false);
577 BT_MBOX_PRINT(3, OPEN_CON_2, false);
578 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
579 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
580 BT_MBOX_PRINT(3, INBAND_P, false);
581 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
582 BT_MBOX_PRINT(3, SSN_2, false);
583 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
584
585 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
586 notif->bt_status);
587 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
588 notif->bt_open_conn);
589 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
590 notif->bt_traffic_load);
591 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
592 notif->bt_agg_traffic_load);
593 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
594 notif->bt_ci_compliance);
595 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
596 le32_to_cpu(notif->primary_ch_lut));
597 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
598 le32_to_cpu(notif->secondary_ch_lut));
599 pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
600 le32_to_cpu(notif->bt_activity_grading));
601
602 mutex_unlock(&mvm->mutex);
603
604 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
605 kfree(buf);
606
607 return ret;
608 }
609 #undef BT_MBOX_PRINT
610
611 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
612 size_t count, loff_t *ppos)
613 {
614 struct iwl_mvm *mvm = file->private_data;
615 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
616 char buf[256];
617 int bufsz = sizeof(buf);
618 int pos = 0;
619
620 mutex_lock(&mvm->mutex);
621
622 pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
623 pos += scnprintf(buf+pos, bufsz-pos,
624 "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
625 le64_to_cpu(cmd->bt_primary_ci),
626 !!cmd->co_run_bw_primary);
627 pos += scnprintf(buf+pos, bufsz-pos,
628 "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
629 le64_to_cpu(cmd->bt_secondary_ci),
630 !!cmd->co_run_bw_secondary);
631
632 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
633 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
634 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
635 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
636 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
637
638 mutex_unlock(&mvm->mutex);
639
640 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
641 }
642
643 #define PRINT_STATS_LE32(_str, _val) \
644 pos += scnprintf(buf + pos, bufsz - pos, \
645 fmt_table, _str, \
646 le32_to_cpu(_val))
647
648 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
649 char __user *user_buf, size_t count,
650 loff_t *ppos)
651 {
652 struct iwl_mvm *mvm = file->private_data;
653 static const char *fmt_table = "\t%-30s %10u\n";
654 static const char *fmt_header = "%-32s\n";
655 int pos = 0;
656 char *buf;
657 int ret;
658 /* 43 is the size of each data line, 33 is the size of each header */
659 size_t bufsz =
660 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
661 (4 * 33) + 1;
662
663 struct mvm_statistics_rx_phy *ofdm;
664 struct mvm_statistics_rx_phy *cck;
665 struct mvm_statistics_rx_non_phy *general;
666 struct mvm_statistics_rx_ht_phy *ht;
667
668 buf = kzalloc(bufsz, GFP_KERNEL);
669 if (!buf)
670 return -ENOMEM;
671
672 mutex_lock(&mvm->mutex);
673
674 ofdm = &mvm->rx_stats.ofdm;
675 cck = &mvm->rx_stats.cck;
676 general = &mvm->rx_stats.general;
677 ht = &mvm->rx_stats.ofdm_ht;
678
679 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
680 "Statistics_Rx - OFDM");
681 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
682 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
683 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
684 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
685 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
686 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
687 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
688 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
689 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
690 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
691 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
692 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
693 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
694 ofdm->rxe_frame_limit_overrun);
695 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
696 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
697 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
698 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
699 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
700 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
701 PRINT_STATS_LE32("reserved", ofdm->reserved);
702
703 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
704 "Statistics_Rx - CCK");
705 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
706 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
707 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
708 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
709 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
710 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
711 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
712 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
713 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
714 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
715 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
716 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
717 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
718 cck->rxe_frame_limit_overrun);
719 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
720 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
721 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
722 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
723 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
724 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
725 PRINT_STATS_LE32("reserved", cck->reserved);
726
727 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
728 "Statistics_Rx - GENERAL");
729 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
730 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
731 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
732 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
733 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
734 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
735 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
736 PRINT_STATS_LE32("adc_rx_saturation_time",
737 general->adc_rx_saturation_time);
738 PRINT_STATS_LE32("ina_detection_search_time",
739 general->ina_detection_search_time);
740 PRINT_STATS_LE32("beacon_silence_rssi_a",
741 general->beacon_silence_rssi_a);
742 PRINT_STATS_LE32("beacon_silence_rssi_b",
743 general->beacon_silence_rssi_b);
744 PRINT_STATS_LE32("beacon_silence_rssi_c",
745 general->beacon_silence_rssi_c);
746 PRINT_STATS_LE32("interference_data_flag",
747 general->interference_data_flag);
748 PRINT_STATS_LE32("channel_load", general->channel_load);
749 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
750 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
751 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
752 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
753 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
754 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
755 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
756 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
757 PRINT_STATS_LE32("mac_id", general->mac_id);
758 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
759
760 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
761 "Statistics_Rx - HT");
762 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
763 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
764 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
765 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
766 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
767 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
768 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
769 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
770 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
771 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
772
773 mutex_unlock(&mvm->mutex);
774
775 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
776 kfree(buf);
777
778 return ret;
779 }
780 #undef PRINT_STAT_LE32
781
782 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
783 const char __user *user_buf,
784 size_t count, loff_t *ppos)
785 {
786 struct iwl_mvm *mvm = file->private_data;
787 int ret;
788
789 mutex_lock(&mvm->mutex);
790
791 /* allow one more restart that we're provoking here */
792 if (mvm->restart_fw >= 0)
793 mvm->restart_fw++;
794
795 /* take the return value to make compiler happy - it will fail anyway */
796 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
797
798 mutex_unlock(&mvm->mutex);
799
800 return count;
801 }
802
803 static ssize_t
804 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
805 char __user *user_buf,
806 size_t count, loff_t *ppos)
807 {
808 struct iwl_mvm *mvm = file->private_data;
809 int pos = 0;
810 char buf[32];
811 const size_t bufsz = sizeof(buf);
812
813 /* print which antennas were set for the scan command by the user */
814 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
815 if (mvm->scan_rx_ant & ANT_A)
816 pos += scnprintf(buf + pos, bufsz - pos, "A");
817 if (mvm->scan_rx_ant & ANT_B)
818 pos += scnprintf(buf + pos, bufsz - pos, "B");
819 if (mvm->scan_rx_ant & ANT_C)
820 pos += scnprintf(buf + pos, bufsz - pos, "C");
821 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
822
823 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
824 }
825
826 static ssize_t
827 iwl_dbgfs_scan_ant_rxchain_write(struct file *file,
828 const char __user *user_buf,
829 size_t count, loff_t *ppos)
830 {
831 struct iwl_mvm *mvm = file->private_data;
832 char buf[8];
833 int buf_size;
834 u8 scan_rx_ant;
835
836 memset(buf, 0, sizeof(buf));
837 buf_size = min(count, sizeof(buf) - 1);
838
839 /* get the argument from the user and check if it is valid */
840 if (copy_from_user(buf, user_buf, buf_size))
841 return -EFAULT;
842 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
843 return -EINVAL;
844 if (scan_rx_ant > ANT_ABC)
845 return -EINVAL;
846 if (scan_rx_ant & ~iwl_fw_valid_rx_ant(mvm->fw))
847 return -EINVAL;
848
849 /* change the rx antennas for scan command */
850 mvm->scan_rx_ant = scan_rx_ant;
851
852 return count;
853 }
854
855
856 static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
857 enum iwl_dbgfs_bf_mask param, int value)
858 {
859 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
860 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
861
862 dbgfs_bf->mask |= param;
863
864 switch (param) {
865 case MVM_DEBUGFS_BF_ENERGY_DELTA:
866 dbgfs_bf->bf_energy_delta = value;
867 break;
868 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
869 dbgfs_bf->bf_roaming_energy_delta = value;
870 break;
871 case MVM_DEBUGFS_BF_ROAMING_STATE:
872 dbgfs_bf->bf_roaming_state = value;
873 break;
874 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
875 dbgfs_bf->bf_temp_threshold = value;
876 break;
877 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
878 dbgfs_bf->bf_temp_fast_filter = value;
879 break;
880 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
881 dbgfs_bf->bf_temp_slow_filter = value;
882 break;
883 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
884 dbgfs_bf->bf_enable_beacon_filter = value;
885 break;
886 case MVM_DEBUGFS_BF_DEBUG_FLAG:
887 dbgfs_bf->bf_debug_flag = value;
888 break;
889 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
890 dbgfs_bf->bf_escape_timer = value;
891 break;
892 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
893 dbgfs_bf->ba_enable_beacon_abort = value;
894 break;
895 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
896 dbgfs_bf->ba_escape_timer = value;
897 break;
898 }
899 }
900
901 static ssize_t iwl_dbgfs_bf_params_write(struct file *file,
902 const char __user *user_buf,
903 size_t count, loff_t *ppos)
904 {
905 struct ieee80211_vif *vif = file->private_data;
906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
907 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
908 enum iwl_dbgfs_bf_mask param;
909 char buf[256];
910 int buf_size;
911 int value;
912 int ret = 0;
913
914 memset(buf, 0, sizeof(buf));
915 buf_size = min(count, sizeof(buf) - 1);
916 if (copy_from_user(buf, user_buf, buf_size))
917 return -EFAULT;
918
919 if (!strncmp("bf_energy_delta=", buf, 16)) {
920 if (sscanf(buf+16, "%d", &value) != 1)
921 return -EINVAL;
922 if (value < IWL_BF_ENERGY_DELTA_MIN ||
923 value > IWL_BF_ENERGY_DELTA_MAX)
924 return -EINVAL;
925 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
926 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
927 if (sscanf(buf+24, "%d", &value) != 1)
928 return -EINVAL;
929 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
930 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
931 return -EINVAL;
932 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
933 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
934 if (sscanf(buf+17, "%d", &value) != 1)
935 return -EINVAL;
936 if (value < IWL_BF_ROAMING_STATE_MIN ||
937 value > IWL_BF_ROAMING_STATE_MAX)
938 return -EINVAL;
939 param = MVM_DEBUGFS_BF_ROAMING_STATE;
940 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
941 if (sscanf(buf+18, "%d", &value) != 1)
942 return -EINVAL;
943 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
944 value > IWL_BF_TEMP_THRESHOLD_MAX)
945 return -EINVAL;
946 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
947 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
948 if (sscanf(buf+20, "%d", &value) != 1)
949 return -EINVAL;
950 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
951 value > IWL_BF_TEMP_FAST_FILTER_MAX)
952 return -EINVAL;
953 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
954 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
955 if (sscanf(buf+20, "%d", &value) != 1)
956 return -EINVAL;
957 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
958 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
959 return -EINVAL;
960 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
961 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
962 if (sscanf(buf+24, "%d", &value) != 1)
963 return -EINVAL;
964 if (value < 0 || value > 1)
965 return -EINVAL;
966 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
967 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
968 if (sscanf(buf+14, "%d", &value) != 1)
969 return -EINVAL;
970 if (value < 0 || value > 1)
971 return -EINVAL;
972 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
973 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
974 if (sscanf(buf+16, "%d", &value) != 1)
975 return -EINVAL;
976 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
977 value > IWL_BF_ESCAPE_TIMER_MAX)
978 return -EINVAL;
979 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
980 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
981 if (sscanf(buf+16, "%d", &value) != 1)
982 return -EINVAL;
983 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
984 value > IWL_BA_ESCAPE_TIMER_MAX)
985 return -EINVAL;
986 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
987 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
988 if (sscanf(buf+23, "%d", &value) != 1)
989 return -EINVAL;
990 if (value < 0 || value > 1)
991 return -EINVAL;
992 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
993 } else {
994 return -EINVAL;
995 }
996
997 mutex_lock(&mvm->mutex);
998 iwl_dbgfs_update_bf(vif, param, value);
999 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) {
1000 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
1001 } else {
1002 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
1003 }
1004 mutex_unlock(&mvm->mutex);
1005
1006 return ret ?: count;
1007 }
1008
1009 static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
1010 char __user *user_buf,
1011 size_t count, loff_t *ppos)
1012 {
1013 struct ieee80211_vif *vif = file->private_data;
1014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1015 char buf[256];
1016 int pos = 0;
1017 const size_t bufsz = sizeof(buf);
1018 struct iwl_beacon_filter_cmd cmd = {
1019 IWL_BF_CMD_CONFIG_DEFAULTS,
1020 .bf_enable_beacon_filter =
1021 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
1022 .ba_enable_beacon_abort =
1023 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
1024 };
1025
1026 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
1027 if (mvmvif->bf_data.bf_enabled)
1028 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
1029 else
1030 cmd.bf_enable_beacon_filter = 0;
1031
1032 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
1033 le32_to_cpu(cmd.bf_energy_delta));
1034 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
1035 le32_to_cpu(cmd.bf_roaming_energy_delta));
1036 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
1037 le32_to_cpu(cmd.bf_roaming_state));
1038 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
1039 le32_to_cpu(cmd.bf_temp_threshold));
1040 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
1041 le32_to_cpu(cmd.bf_temp_fast_filter));
1042 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
1043 le32_to_cpu(cmd.bf_temp_slow_filter));
1044 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
1045 le32_to_cpu(cmd.bf_enable_beacon_filter));
1046 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
1047 le32_to_cpu(cmd.bf_debug_flag));
1048 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
1049 le32_to_cpu(cmd.bf_escape_timer));
1050 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
1051 le32_to_cpu(cmd.ba_escape_timer));
1052 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
1053 le32_to_cpu(cmd.ba_enable_beacon_abort));
1054
1055 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1056 }
1057
1058 #ifdef CONFIG_PM_SLEEP
1059 static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
1060 const char __user *user_buf,
1061 size_t count, loff_t *ppos)
1062 {
1063 struct iwl_mvm *mvm = file->private_data;
1064 char buf[8] = {};
1065 int store;
1066
1067 count = min_t(size_t, count, sizeof(buf) - 1);
1068 if (copy_from_user(buf, user_buf, count))
1069 return -EFAULT;
1070
1071 if (sscanf(buf, "%d", &store) != 1)
1072 return -EINVAL;
1073
1074 mvm->store_d3_resume_sram = store;
1075
1076 return count;
1077 }
1078
1079 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
1080 size_t count, loff_t *ppos)
1081 {
1082 struct iwl_mvm *mvm = file->private_data;
1083 const struct fw_img *img;
1084 int ofs, len, pos = 0;
1085 size_t bufsz, ret;
1086 char *buf;
1087 u8 *ptr = mvm->d3_resume_sram;
1088
1089 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1090 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1091
1092 bufsz = len * 4 + 256;
1093 buf = kzalloc(bufsz, GFP_KERNEL);
1094 if (!buf)
1095 return -ENOMEM;
1096
1097 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1098 mvm->store_d3_resume_sram ? "en" : "dis");
1099
1100 if (ptr) {
1101 for (ofs = 0; ofs < len; ofs += 16) {
1102 pos += scnprintf(buf + pos, bufsz - pos,
1103 "0x%.4x ", ofs);
1104 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
1105 bufsz - pos, false);
1106 pos += strlen(buf + pos);
1107 if (bufsz - pos > 0)
1108 buf[pos++] = '\n';
1109 }
1110 } else {
1111 pos += scnprintf(buf + pos, bufsz - pos,
1112 "(no data captured)\n");
1113 }
1114
1115 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1116
1117 kfree(buf);
1118
1119 return ret;
1120 }
1121 #endif
1122
1123 #define MVM_DEBUGFS_READ_FILE_OPS(name) \
1124 static const struct file_operations iwl_dbgfs_##name##_ops = { \
1125 .read = iwl_dbgfs_##name##_read, \
1126 .open = simple_open, \
1127 .llseek = generic_file_llseek, \
1128 }
1129
1130 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name) \
1131 static const struct file_operations iwl_dbgfs_##name##_ops = { \
1132 .write = iwl_dbgfs_##name##_write, \
1133 .read = iwl_dbgfs_##name##_read, \
1134 .open = simple_open, \
1135 .llseek = generic_file_llseek, \
1136 };
1137
1138 #define MVM_DEBUGFS_WRITE_FILE_OPS(name) \
1139 static const struct file_operations iwl_dbgfs_##name##_ops = { \
1140 .write = iwl_dbgfs_##name##_write, \
1141 .open = simple_open, \
1142 .llseek = generic_file_llseek, \
1143 };
1144
1145 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do { \
1146 if (!debugfs_create_file(#name, mode, parent, mvm, \
1147 &iwl_dbgfs_##name##_ops)) \
1148 goto err; \
1149 } while (0)
1150
1151 #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
1152 if (!debugfs_create_file(#name, mode, parent, vif, \
1153 &iwl_dbgfs_##name##_ops)) \
1154 goto err; \
1155 } while (0)
1156
1157 /* Device wide debugfs entries */
1158 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush);
1159 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
1160 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
1161 MVM_DEBUGFS_READ_FILE_OPS(stations);
1162 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1163 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
1164 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off);
1165 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1166 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
1167 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain);
1168
1169 #ifdef CONFIG_PM_SLEEP
1170 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
1171 #endif
1172
1173 /* Interface specific debugfs entries */
1174 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
1175 MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params);
1176 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params);
1177
1178 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1179 {
1180 char buf[100];
1181
1182 mvm->debugfs_dir = dbgfs_dir;
1183
1184 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1185 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1186 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1187 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1188 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1189 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
1190 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)
1191 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
1192 S_IRUSR | S_IWUSR);
1193 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1194 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1195 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
1196 S_IWUSR | S_IRUSR);
1197 #ifdef CONFIG_PM_SLEEP
1198 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1199 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1200 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1201 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1202 goto err;
1203 #endif
1204
1205 /*
1206 * Create a symlink with mac80211. It will be removed when mac80211
1207 * exists (before the opmode exists which removes the target.)
1208 */
1209 snprintf(buf, 100, "../../%s/%s",
1210 dbgfs_dir->d_parent->d_parent->d_name.name,
1211 dbgfs_dir->d_parent->d_name.name);
1212 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1213 goto err;
1214
1215 return 0;
1216 err:
1217 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1218 return -ENOMEM;
1219 }
1220
1221 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1222 {
1223 struct dentry *dbgfs_dir = vif->debugfs_dir;
1224 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1225 char buf[100];
1226
1227 /*
1228 * Check if debugfs directory already exist before creating it.
1229 * This may happen when, for example, resetting hw or suspend-resume
1230 */
1231 if (!dbgfs_dir || mvmvif->dbgfs_dir)
1232 return;
1233
1234 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
1235 mvmvif->dbgfs_data = mvm;
1236
1237 if (!mvmvif->dbgfs_dir) {
1238 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
1239 dbgfs_dir->d_name.name);
1240 return;
1241 }
1242
1243 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
1244 vif->type == NL80211_IFTYPE_STATION && !vif->p2p)
1245 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
1246 S_IRUSR);
1247
1248 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
1249 S_IRUSR);
1250
1251 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1252 mvmvif == mvm->bf_allowed_vif)
1253 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
1254 S_IRUSR | S_IWUSR);
1255
1256 /*
1257 * Create symlink for convenience pointing to interface specific
1258 * debugfs entries for the driver. For example, under
1259 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
1260 * find
1261 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
1262 */
1263 snprintf(buf, 100, "../../../%s/%s/%s/%s",
1264 dbgfs_dir->d_parent->d_parent->d_name.name,
1265 dbgfs_dir->d_parent->d_name.name,
1266 dbgfs_dir->d_name.name,
1267 mvmvif->dbgfs_dir->d_name.name);
1268
1269 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
1270 mvm->debugfs_dir, buf);
1271 if (!mvmvif->dbgfs_slink)
1272 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
1273 dbgfs_dir->d_name.name);
1274 return;
1275 err:
1276 IWL_ERR(mvm, "Can't create debugfs entity\n");
1277 }
1278
1279 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1280 {
1281 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1282
1283 debugfs_remove(mvmvif->dbgfs_slink);
1284 mvmvif->dbgfs_slink = NULL;
1285
1286 debugfs_remove_recursive(mvmvif->dbgfs_dir);
1287 mvmvif->dbgfs_dir = NULL;
1288 }
Linux kernel - Deliverables
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