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mfd: wm8350-i2c: Make sure the i2c regmap functions are compiled
[linux/fpc-iii.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
blobc196425a672339bcf167ce70606866b06c623a16
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 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
123 return -EINVAL;
124 if (drain < 0 || drain > 1)
125 return -EINVAL;
126
127 mutex_lock(&mvm->mutex);
128
129 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
130 lockdep_is_held(&mvm->mutex));
131 if (IS_ERR_OR_NULL(sta))
132 ret = -ENOENT;
133 else
134 ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? :
135 count;
136
137 mutex_unlock(&mvm->mutex);
138
139 return ret;
140 }
141
142 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
143 size_t count, loff_t *ppos)
144 {
145 struct iwl_mvm *mvm = file->private_data;
146 const struct fw_img *img;
147 int ofs, len, pos = 0;
148 size_t bufsz, ret;
149 char *buf;
150 u8 *ptr;
151
152 if (!mvm->ucode_loaded)
153 return -EINVAL;
154
155 /* default is to dump the entire data segment */
156 if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
157 img = &mvm->fw->img[mvm->cur_ucode];
158 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
159 len = img->sec[IWL_UCODE_SECTION_DATA].len;
160 } else {
161 ofs = mvm->dbgfs_sram_offset;
162 len = mvm->dbgfs_sram_len;
163 }
164
165 bufsz = len * 4 + 256;
166 buf = kzalloc(bufsz, GFP_KERNEL);
167 if (!buf)
168 return -ENOMEM;
169
170 ptr = kzalloc(len, GFP_KERNEL);
171 if (!ptr) {
172 kfree(buf);
173 return -ENOMEM;
174 }
175
176 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
177 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
178
179 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
180 for (ofs = 0; ofs < len; ofs += 16) {
181 pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs);
182 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
183 bufsz - pos, false);
184 pos += strlen(buf + pos);
185 if (bufsz - pos > 0)
186 buf[pos++] = '\n';
187 }
188
189 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
190
191 kfree(buf);
192 kfree(ptr);
193
194 return ret;
195 }
196
197 static ssize_t iwl_dbgfs_sram_write(struct file *file,
198 const char __user *user_buf, size_t count,
199 loff_t *ppos)
200 {
201 struct iwl_mvm *mvm = file->private_data;
202 char buf[64];
203 int buf_size;
204 u32 offset, len;
205
206 memset(buf, 0, sizeof(buf));
207 buf_size = min(count, sizeof(buf) - 1);
208 if (copy_from_user(buf, user_buf, buf_size))
209 return -EFAULT;
210
211 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
212 if ((offset & 0x3) || (len & 0x3))
213 return -EINVAL;
214 mvm->dbgfs_sram_offset = offset;
215 mvm->dbgfs_sram_len = len;
216 } else {
217 mvm->dbgfs_sram_offset = 0;
218 mvm->dbgfs_sram_len = 0;
219 }
220
221 return count;
222 }
223
224 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
225 size_t count, loff_t *ppos)
226 {
227 struct iwl_mvm *mvm = file->private_data;
228 struct ieee80211_sta *sta;
229 char buf[400];
230 int i, pos = 0, bufsz = sizeof(buf);
231
232 mutex_lock(&mvm->mutex);
233
234 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
235 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
236 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
237 lockdep_is_held(&mvm->mutex));
238 if (!sta)
239 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
240 else if (IS_ERR(sta))
241 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
242 PTR_ERR(sta));
243 else
244 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
245 sta->addr);
246 }
247
248 mutex_unlock(&mvm->mutex);
249
250 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
251 }
252
253 static ssize_t iwl_dbgfs_power_down_allow_write(struct file *file,
254 const char __user *user_buf,
255 size_t count, loff_t *ppos)
256 {
257 struct iwl_mvm *mvm = file->private_data;
258 char buf[8] = {};
259 int allow;
260
261 if (!mvm->ucode_loaded)
262 return -EIO;
263
264 if (copy_from_user(buf, user_buf, sizeof(buf)))
265 return -EFAULT;
266
267 if (sscanf(buf, "%d", &allow) != 1)
268 return -EINVAL;
269
270 IWL_DEBUG_POWER(mvm, "%s device power down\n",
271 allow ? "allow" : "prevent");
272
273 /*
274 * TODO: Send REPLY_DEBUG_CMD (0xf0) when FW support it
275 */
276
277 return count;
278 }
279
280 static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
281 const char __user *user_buf,
282 size_t count, loff_t *ppos)
283 {
284 struct iwl_mvm *mvm = file->private_data;
285 char buf[8] = {};
286 int allow;
287
288 if (copy_from_user(buf, user_buf, sizeof(buf)))
289 return -EFAULT;
290
291 if (sscanf(buf, "%d", &allow) != 1)
292 return -EINVAL;
293
294 IWL_DEBUG_POWER(mvm, "%s device power down in d3\n",
295 allow ? "allow" : "prevent");
296
297 /*
298 * TODO: When WoWLAN FW alive notification happens, driver will send
299 * REPLY_DEBUG_CMD setting power_down_allow flag according to
300 * mvm->prevent_power_down_d3
301 */
302 mvm->prevent_power_down_d3 = !allow;
303
304 return count;
305 }
306
307 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
308 struct ieee80211_vif *vif,
309 enum iwl_dbgfs_pm_mask param, int val)
310 {
311 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
312 struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
313
314 dbgfs_pm->mask |= param;
315
316 switch (param) {
317 case MVM_DEBUGFS_PM_KEEP_ALIVE: {
318 struct ieee80211_hw *hw = mvm->hw;
319 int dtimper = hw->conf.ps_dtim_period ?: 1;
320 int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
321
322 IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
323 if (val * MSEC_PER_SEC < 3 * dtimper_msec) {
324 IWL_WARN(mvm,
325 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
326 val * MSEC_PER_SEC, 3 * dtimper_msec);
327 }
328 dbgfs_pm->keep_alive_seconds = val;
329 break;
330 }
331 case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
332 IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
333 val ? "enabled" : "disabled");
334 dbgfs_pm->skip_over_dtim = val;
335 break;
336 case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
337 IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
338 dbgfs_pm->skip_dtim_periods = val;
339 break;
340 case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
341 IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
342 dbgfs_pm->rx_data_timeout = val;
343 break;
344 case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
345 IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
346 dbgfs_pm->tx_data_timeout = val;
347 break;
348 case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
349 IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
350 dbgfs_pm->disable_power_off = val;
351 case MVM_DEBUGFS_PM_LPRX_ENA:
352 IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
353 dbgfs_pm->lprx_ena = val;
354 break;
355 case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
356 IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
357 dbgfs_pm->lprx_rssi_threshold = val;
358 break;
359 case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
360 IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
361 dbgfs_pm->snooze_ena = val;
362 break;
363 }
364 }
365
366 static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
367 const char __user *user_buf,
368 size_t count, loff_t *ppos)
369 {
370 struct ieee80211_vif *vif = file->private_data;
371 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
372 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
373 enum iwl_dbgfs_pm_mask param;
374 char buf[32] = {};
375 int val;
376 int ret;
377
378 if (copy_from_user(buf, user_buf, sizeof(buf)))
379 return -EFAULT;
380
381 if (!strncmp("keep_alive=", buf, 11)) {
382 if (sscanf(buf + 11, "%d", &val) != 1)
383 return -EINVAL;
384 param = MVM_DEBUGFS_PM_KEEP_ALIVE;
385 } else if (!strncmp("skip_over_dtim=", buf, 15)) {
386 if (sscanf(buf + 15, "%d", &val) != 1)
387 return -EINVAL;
388 param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
389 } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
390 if (sscanf(buf + 18, "%d", &val) != 1)
391 return -EINVAL;
392 param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
393 } else if (!strncmp("rx_data_timeout=", buf, 16)) {
394 if (sscanf(buf + 16, "%d", &val) != 1)
395 return -EINVAL;
396 param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
397 } else if (!strncmp("tx_data_timeout=", buf, 16)) {
398 if (sscanf(buf + 16, "%d", &val) != 1)
399 return -EINVAL;
400 param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
401 } else if (!strncmp("disable_power_off=", buf, 18)) {
402 if (sscanf(buf + 18, "%d", &val) != 1)
403 return -EINVAL;
404 param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
405 } else if (!strncmp("lprx=", buf, 5)) {
406 if (sscanf(buf + 5, "%d", &val) != 1)
407 return -EINVAL;
408 param = MVM_DEBUGFS_PM_LPRX_ENA;
409 } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
410 if (sscanf(buf + 20, "%d", &val) != 1)
411 return -EINVAL;
412 if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
413 POWER_LPRX_RSSI_THRESHOLD_MIN)
414 return -EINVAL;
415 param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
416 } else if (!strncmp("snooze_enable=", buf, 14)) {
417 if (sscanf(buf + 14, "%d", &val) != 1)
418 return -EINVAL;
419 param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
420 } else {
421 return -EINVAL;
422 }
423
424 mutex_lock(&mvm->mutex);
425 iwl_dbgfs_update_pm(mvm, vif, param, val);
426 ret = iwl_mvm_power_update_mode(mvm, vif);
427 mutex_unlock(&mvm->mutex);
428
429 return ret ?: count;
430 }
431
432 static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
433 char __user *user_buf,
434 size_t count, loff_t *ppos)
435 {
436 struct ieee80211_vif *vif = file->private_data;
437 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
438 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
439 char buf[512];
440 int bufsz = sizeof(buf);
441 int pos;
442
443 pos = iwl_mvm_power_dbgfs_read(mvm, vif, buf, bufsz);
444
445 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
446 }
447
448 static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
449 char __user *user_buf,
450 size_t count, loff_t *ppos)
451 {
452 struct ieee80211_vif *vif = file->private_data;
453 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
454 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
455 u8 ap_sta_id;
456 struct ieee80211_chanctx_conf *chanctx_conf;
457 char buf[512];
458 int bufsz = sizeof(buf);
459 int pos = 0;
460 int i;
461
462 mutex_lock(&mvm->mutex);
463
464 ap_sta_id = mvmvif->ap_sta_id;
465
466 pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n",
467 mvmvif->id, mvmvif->color);
468 pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n",
469 vif->bss_conf.bssid);
470 pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n");
471 for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) {
472 pos += scnprintf(buf+pos, bufsz-pos,
473 "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n",
474 i, mvmvif->queue_params[i].txop,
475 mvmvif->queue_params[i].cw_min,
476 mvmvif->queue_params[i].cw_max,
477 mvmvif->queue_params[i].aifs,
478 mvmvif->queue_params[i].uapsd);
479 }
480
481 if (vif->type == NL80211_IFTYPE_STATION &&
482 ap_sta_id != IWL_MVM_STATION_COUNT) {
483 struct ieee80211_sta *sta;
484 struct iwl_mvm_sta *mvm_sta;
485
486 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
487 lockdep_is_held(&mvm->mutex));
488 mvm_sta = (void *)sta->drv_priv;
489 pos += scnprintf(buf+pos, bufsz-pos,
490 "ap_sta_id %d - reduced Tx power %d\n",
491 ap_sta_id, mvm_sta->bt_reduced_txpower);
492 }
493
494 rcu_read_lock();
495 chanctx_conf = rcu_dereference(vif->chanctx_conf);
496 if (chanctx_conf) {
497 pos += scnprintf(buf+pos, bufsz-pos,
498 "idle rx chains %d, active rx chains: %d\n",
499 chanctx_conf->rx_chains_static,
500 chanctx_conf->rx_chains_dynamic);
501 }
502 rcu_read_unlock();
503
504 mutex_unlock(&mvm->mutex);
505
506 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
507 }
508
509 #define BT_MBOX_MSG(_notif, _num, _field) \
510 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
511 >> BT_MBOX##_num##_##_field##_POS)
512
513
514 #define BT_MBOX_PRINT(_num, _field, _end) \
515 pos += scnprintf(buf + pos, bufsz - pos, \
516 "\t%s: %d%s", \
517 #_field, \
518 BT_MBOX_MSG(notif, _num, _field), \
519 true ? "\n" : ", ");
520
521 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
522 size_t count, loff_t *ppos)
523 {
524 struct iwl_mvm *mvm = file->private_data;
525 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
526 char *buf;
527 int ret, pos = 0, bufsz = sizeof(char) * 1024;
528
529 buf = kmalloc(bufsz, GFP_KERNEL);
530 if (!buf)
531 return -ENOMEM;
532
533 mutex_lock(&mvm->mutex);
534
535 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
536
537 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
538 BT_MBOX_PRINT(0, LE_PROF1, false);
539 BT_MBOX_PRINT(0, LE_PROF2, false);
540 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
541 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
542 BT_MBOX_PRINT(0, INBAND_S, false);
543 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
544 BT_MBOX_PRINT(0, LE_SCAN, false);
545 BT_MBOX_PRINT(0, LE_ADV, false);
546 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
547 BT_MBOX_PRINT(0, OPEN_CON_1, true);
548
549 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
550
551 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
552 BT_MBOX_PRINT(1, IP_SR, false);
553 BT_MBOX_PRINT(1, LE_MSTR, false);
554 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
555 BT_MBOX_PRINT(1, MSG_TYPE, false);
556 BT_MBOX_PRINT(1, SSN, true);
557
558 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
559
560 BT_MBOX_PRINT(2, SNIFF_ACT, false);
561 BT_MBOX_PRINT(2, PAG, false);
562 BT_MBOX_PRINT(2, INQUIRY, false);
563 BT_MBOX_PRINT(2, CONN, false);
564 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
565 BT_MBOX_PRINT(2, DISC, false);
566 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
567 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
568 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
569 BT_MBOX_PRINT(2, SCO_DURATION, true);
570
571 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
572
573 BT_MBOX_PRINT(3, SCO_STATE, false);
574 BT_MBOX_PRINT(3, SNIFF_STATE, false);
575 BT_MBOX_PRINT(3, A2DP_STATE, false);
576 BT_MBOX_PRINT(3, ACL_STATE, false);
577 BT_MBOX_PRINT(3, MSTR_STATE, false);
578 BT_MBOX_PRINT(3, OBX_STATE, false);
579 BT_MBOX_PRINT(3, OPEN_CON_2, false);
580 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
581 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
582 BT_MBOX_PRINT(3, INBAND_P, false);
583 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
584 BT_MBOX_PRINT(3, SSN_2, false);
585 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
586
587 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
588 notif->bt_status);
589 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
590 notif->bt_open_conn);
591 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
592 notif->bt_traffic_load);
593 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
594 notif->bt_agg_traffic_load);
595 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
596 notif->bt_ci_compliance);
597
598 mutex_unlock(&mvm->mutex);
599
600 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
601 kfree(buf);
602
603 return ret;
604 }
605 #undef BT_MBOX_PRINT
606
607 #define PRINT_STATS_LE32(_str, _val) \
608 pos += scnprintf(buf + pos, bufsz - pos, \
609 fmt_table, _str, \
610 le32_to_cpu(_val))
611
612 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
613 char __user *user_buf, size_t count,
614 loff_t *ppos)
615 {
616 struct iwl_mvm *mvm = file->private_data;
617 static const char *fmt_table = "\t%-30s %10u\n";
618 static const char *fmt_header = "%-32s\n";
619 int pos = 0;
620 char *buf;
621 int ret;
622 int bufsz = sizeof(struct mvm_statistics_rx_phy) * 20 +
623 sizeof(struct mvm_statistics_rx_non_phy) * 10 +
624 sizeof(struct mvm_statistics_rx_ht_phy) * 10 + 200;
625 struct mvm_statistics_rx_phy *ofdm;
626 struct mvm_statistics_rx_phy *cck;
627 struct mvm_statistics_rx_non_phy *general;
628 struct mvm_statistics_rx_ht_phy *ht;
629
630 buf = kzalloc(bufsz, GFP_KERNEL);
631 if (!buf)
632 return -ENOMEM;
633
634 mutex_lock(&mvm->mutex);
635
636 ofdm = &mvm->rx_stats.ofdm;
637 cck = &mvm->rx_stats.cck;
638 general = &mvm->rx_stats.general;
639 ht = &mvm->rx_stats.ofdm_ht;
640
641 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
642 "Statistics_Rx - OFDM");
643 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
644 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
645 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
646 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
647 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
648 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
649 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
650 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
651 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
652 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
653 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
654 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
655 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
656 ofdm->rxe_frame_limit_overrun);
657 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
658 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
659 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
660 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
661 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
662 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
663 PRINT_STATS_LE32("reserved", ofdm->reserved);
664
665 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
666 "Statistics_Rx - CCK");
667 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
668 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
669 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
670 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
671 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
672 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
673 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
674 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
675 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
676 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
677 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
678 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
679 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
680 cck->rxe_frame_limit_overrun);
681 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
682 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
683 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
684 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
685 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
686 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
687 PRINT_STATS_LE32("reserved", cck->reserved);
688
689 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
690 "Statistics_Rx - GENERAL");
691 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
692 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
693 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
694 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
695 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
696 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
697 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
698 PRINT_STATS_LE32("adc_rx_saturation_time",
699 general->adc_rx_saturation_time);
700 PRINT_STATS_LE32("ina_detection_search_time",
701 general->ina_detection_search_time);
702 PRINT_STATS_LE32("beacon_silence_rssi_a",
703 general->beacon_silence_rssi_a);
704 PRINT_STATS_LE32("beacon_silence_rssi_b",
705 general->beacon_silence_rssi_b);
706 PRINT_STATS_LE32("beacon_silence_rssi_c",
707 general->beacon_silence_rssi_c);
708 PRINT_STATS_LE32("interference_data_flag",
709 general->interference_data_flag);
710 PRINT_STATS_LE32("channel_load", general->channel_load);
711 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
712 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
713 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
714 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
715 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
716 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
717 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
718 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
719 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
720
721 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
722 "Statistics_Rx - HT");
723 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
724 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
725 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
726 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
727 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
728 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
729 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
730 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
731 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
732 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
733
734 mutex_unlock(&mvm->mutex);
735
736 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
737 kfree(buf);
738
739 return ret;
740 }
741 #undef PRINT_STAT_LE32
742
743 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
744 const char __user *user_buf,
745 size_t count, loff_t *ppos)
746 {
747 struct iwl_mvm *mvm = file->private_data;
748 int ret;
749
750 mutex_lock(&mvm->mutex);
751
752 /* allow one more restart that we're provoking here */
753 if (mvm->restart_fw >= 0)
754 mvm->restart_fw++;
755
756 /* take the return value to make compiler happy - it will fail anyway */
757 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
758
759 mutex_unlock(&mvm->mutex);
760
761 return count;
762 }
763
764 static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
765 enum iwl_dbgfs_bf_mask param, int value)
766 {
767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
768 struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
769
770 dbgfs_bf->mask |= param;
771
772 switch (param) {
773 case MVM_DEBUGFS_BF_ENERGY_DELTA:
774 dbgfs_bf->bf_energy_delta = value;
775 break;
776 case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
777 dbgfs_bf->bf_roaming_energy_delta = value;
778 break;
779 case MVM_DEBUGFS_BF_ROAMING_STATE:
780 dbgfs_bf->bf_roaming_state = value;
781 break;
782 case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
783 dbgfs_bf->bf_temp_threshold = value;
784 break;
785 case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
786 dbgfs_bf->bf_temp_fast_filter = value;
787 break;
788 case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
789 dbgfs_bf->bf_temp_slow_filter = value;
790 break;
791 case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
792 dbgfs_bf->bf_enable_beacon_filter = value;
793 break;
794 case MVM_DEBUGFS_BF_DEBUG_FLAG:
795 dbgfs_bf->bf_debug_flag = value;
796 break;
797 case MVM_DEBUGFS_BF_ESCAPE_TIMER:
798 dbgfs_bf->bf_escape_timer = value;
799 break;
800 case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
801 dbgfs_bf->ba_enable_beacon_abort = value;
802 break;
803 case MVM_DEBUGFS_BA_ESCAPE_TIMER:
804 dbgfs_bf->ba_escape_timer = value;
805 break;
806 }
807 }
808
809 static ssize_t iwl_dbgfs_bf_params_write(struct file *file,
810 const char __user *user_buf,
811 size_t count, loff_t *ppos)
812 {
813 struct ieee80211_vif *vif = file->private_data;
814 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
815 struct iwl_mvm *mvm = mvmvif->dbgfs_data;
816 enum iwl_dbgfs_bf_mask param;
817 char buf[256];
818 int buf_size;
819 int value;
820 int ret = 0;
821
822 memset(buf, 0, sizeof(buf));
823 buf_size = min(count, sizeof(buf) - 1);
824 if (copy_from_user(buf, user_buf, buf_size))
825 return -EFAULT;
826
827 if (!strncmp("bf_energy_delta=", buf, 16)) {
828 if (sscanf(buf+16, "%d", &value) != 1)
829 return -EINVAL;
830 if (value < IWL_BF_ENERGY_DELTA_MIN ||
831 value > IWL_BF_ENERGY_DELTA_MAX)
832 return -EINVAL;
833 param = MVM_DEBUGFS_BF_ENERGY_DELTA;
834 } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
835 if (sscanf(buf+24, "%d", &value) != 1)
836 return -EINVAL;
837 if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
838 value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
839 return -EINVAL;
840 param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
841 } else if (!strncmp("bf_roaming_state=", buf, 17)) {
842 if (sscanf(buf+17, "%d", &value) != 1)
843 return -EINVAL;
844 if (value < IWL_BF_ROAMING_STATE_MIN ||
845 value > IWL_BF_ROAMING_STATE_MAX)
846 return -EINVAL;
847 param = MVM_DEBUGFS_BF_ROAMING_STATE;
848 } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
849 if (sscanf(buf+18, "%d", &value) != 1)
850 return -EINVAL;
851 if (value < IWL_BF_TEMP_THRESHOLD_MIN ||
852 value > IWL_BF_TEMP_THRESHOLD_MAX)
853 return -EINVAL;
854 param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
855 } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
856 if (sscanf(buf+20, "%d", &value) != 1)
857 return -EINVAL;
858 if (value < IWL_BF_TEMP_FAST_FILTER_MIN ||
859 value > IWL_BF_TEMP_FAST_FILTER_MAX)
860 return -EINVAL;
861 param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
862 } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
863 if (sscanf(buf+20, "%d", &value) != 1)
864 return -EINVAL;
865 if (value < IWL_BF_TEMP_SLOW_FILTER_MIN ||
866 value > IWL_BF_TEMP_SLOW_FILTER_MAX)
867 return -EINVAL;
868 param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
869 } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
870 if (sscanf(buf+24, "%d", &value) != 1)
871 return -EINVAL;
872 if (value < 0 || value > 1)
873 return -EINVAL;
874 param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
875 } else if (!strncmp("bf_debug_flag=", buf, 14)) {
876 if (sscanf(buf+14, "%d", &value) != 1)
877 return -EINVAL;
878 if (value < 0 || value > 1)
879 return -EINVAL;
880 param = MVM_DEBUGFS_BF_DEBUG_FLAG;
881 } else if (!strncmp("bf_escape_timer=", buf, 16)) {
882 if (sscanf(buf+16, "%d", &value) != 1)
883 return -EINVAL;
884 if (value < IWL_BF_ESCAPE_TIMER_MIN ||
885 value > IWL_BF_ESCAPE_TIMER_MAX)
886 return -EINVAL;
887 param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
888 } else if (!strncmp("ba_escape_timer=", buf, 16)) {
889 if (sscanf(buf+16, "%d", &value) != 1)
890 return -EINVAL;
891 if (value < IWL_BA_ESCAPE_TIMER_MIN ||
892 value > IWL_BA_ESCAPE_TIMER_MAX)
893 return -EINVAL;
894 param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
895 } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
896 if (sscanf(buf+23, "%d", &value) != 1)
897 return -EINVAL;
898 if (value < 0 || value > 1)
899 return -EINVAL;
900 param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
901 } else {
902 return -EINVAL;
903 }
904
905 mutex_lock(&mvm->mutex);
906 iwl_dbgfs_update_bf(vif, param, value);
907 if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) {
908 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
909 } else {
910 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
911 }
912 mutex_unlock(&mvm->mutex);
913
914 return ret ?: count;
915 }
916
917 static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
918 char __user *user_buf,
919 size_t count, loff_t *ppos)
920 {
921 struct ieee80211_vif *vif = file->private_data;
922 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
923 char buf[256];
924 int pos = 0;
925 const size_t bufsz = sizeof(buf);
926 struct iwl_beacon_filter_cmd cmd = {
927 IWL_BF_CMD_CONFIG_DEFAULTS,
928 .bf_enable_beacon_filter =
929 cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
930 .ba_enable_beacon_abort =
931 cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
932 };
933
934 iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
935 if (mvmvif->bf_data.bf_enabled)
936 cmd.bf_enable_beacon_filter = cpu_to_le32(1);
937 else
938 cmd.bf_enable_beacon_filter = 0;
939
940 pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
941 le32_to_cpu(cmd.bf_energy_delta));
942 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
943 le32_to_cpu(cmd.bf_roaming_energy_delta));
944 pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
945 le32_to_cpu(cmd.bf_roaming_state));
946 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n",
947 le32_to_cpu(cmd.bf_temp_threshold));
948 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n",
949 le32_to_cpu(cmd.bf_temp_fast_filter));
950 pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n",
951 le32_to_cpu(cmd.bf_temp_slow_filter));
952 pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
953 le32_to_cpu(cmd.bf_enable_beacon_filter));
954 pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
955 le32_to_cpu(cmd.bf_debug_flag));
956 pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
957 le32_to_cpu(cmd.bf_escape_timer));
958 pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
959 le32_to_cpu(cmd.ba_escape_timer));
960 pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
961 le32_to_cpu(cmd.ba_enable_beacon_abort));
962
963 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
964 }
965
966 #ifdef CONFIG_PM_SLEEP
967 static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
968 const char __user *user_buf,
969 size_t count, loff_t *ppos)
970 {
971 struct iwl_mvm *mvm = file->private_data;
972 char buf[8] = {};
973 int store;
974
975 if (copy_from_user(buf, user_buf, sizeof(buf)))
976 return -EFAULT;
977
978 if (sscanf(buf, "%d", &store) != 1)
979 return -EINVAL;
980
981 mvm->store_d3_resume_sram = store;
982
983 return count;
984 }
985
986 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
987 size_t count, loff_t *ppos)
988 {
989 struct iwl_mvm *mvm = file->private_data;
990 const struct fw_img *img;
991 int ofs, len, pos = 0;
992 size_t bufsz, ret;
993 char *buf;
994 u8 *ptr = mvm->d3_resume_sram;
995
996 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
997 len = img->sec[IWL_UCODE_SECTION_DATA].len;
998
999 bufsz = len * 4 + 256;
1000 buf = kzalloc(bufsz, GFP_KERNEL);
1001 if (!buf)
1002 return -ENOMEM;
1003
1004 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
1005 mvm->store_d3_resume_sram ? "en" : "dis");
1006
1007 if (ptr) {
1008 for (ofs = 0; ofs < len; ofs += 16) {
1009 pos += scnprintf(buf + pos, bufsz - pos,
1010 "0x%.4x ", ofs);
1011 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
1012 bufsz - pos, false);
1013 pos += strlen(buf + pos);
1014 if (bufsz - pos > 0)
1015 buf[pos++] = '\n';
1016 }
1017 } else {
1018 pos += scnprintf(buf + pos, bufsz - pos,
1019 "(no data captured)\n");
1020 }
1021
1022 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1023
1024 kfree(buf);
1025
1026 return ret;
1027 }
1028 #endif
1029
1030 #define MVM_DEBUGFS_READ_FILE_OPS(name) \
1031 static const struct file_operations iwl_dbgfs_##name##_ops = { \
1032 .read = iwl_dbgfs_##name##_read, \
1033 .open = simple_open, \
1034 .llseek = generic_file_llseek, \
1035 }
1036
1037 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name) \
1038 static const struct file_operations iwl_dbgfs_##name##_ops = { \
1039 .write = iwl_dbgfs_##name##_write, \
1040 .read = iwl_dbgfs_##name##_read, \
1041 .open = simple_open, \
1042 .llseek = generic_file_llseek, \
1043 };
1044
1045 #define MVM_DEBUGFS_WRITE_FILE_OPS(name) \
1046 static const struct file_operations iwl_dbgfs_##name##_ops = { \
1047 .write = iwl_dbgfs_##name##_write, \
1048 .open = simple_open, \
1049 .llseek = generic_file_llseek, \
1050 };
1051
1052 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do { \
1053 if (!debugfs_create_file(#name, mode, parent, mvm, \
1054 &iwl_dbgfs_##name##_ops)) \
1055 goto err; \
1056 } while (0)
1057
1058 #define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \
1059 if (!debugfs_create_file(#name, mode, parent, vif, \
1060 &iwl_dbgfs_##name##_ops)) \
1061 goto err; \
1062 } while (0)
1063
1064 /* Device wide debugfs entries */
1065 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush);
1066 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
1067 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
1068 MVM_DEBUGFS_READ_FILE_OPS(stations);
1069 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
1070 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
1071 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
1072 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
1073 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
1074 #ifdef CONFIG_PM_SLEEP
1075 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
1076 #endif
1077
1078 /* Interface specific debugfs entries */
1079 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
1080 MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params);
1081 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params);
1082
1083 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
1084 {
1085 char buf[100];
1086
1087 mvm->debugfs_dir = dbgfs_dir;
1088
1089 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
1090 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
1091 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
1092 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
1093 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
1094 MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
1095 MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
1096 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
1097 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
1098 #ifdef CONFIG_PM_SLEEP
1099 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
1100 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
1101 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
1102 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
1103 goto err;
1104 #endif
1105
1106 /*
1107 * Create a symlink with mac80211. It will be removed when mac80211
1108 * exists (before the opmode exists which removes the target.)
1109 */
1110 snprintf(buf, 100, "../../%s/%s",
1111 dbgfs_dir->d_parent->d_parent->d_name.name,
1112 dbgfs_dir->d_parent->d_name.name);
1113 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
1114 goto err;
1115
1116 return 0;
1117 err:
1118 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
1119 return -ENOMEM;
1120 }
1121
1122 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1123 {
1124 struct dentry *dbgfs_dir = vif->debugfs_dir;
1125 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1126 char buf[100];
1127
1128 /*
1129 * Check if debugfs directory already exist before creating it.
1130 * This may happen when, for example, resetting hw or suspend-resume
1131 */
1132 if (!dbgfs_dir || mvmvif->dbgfs_dir)
1133 return;
1134
1135 mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);
1136 mvmvif->dbgfs_data = mvm;
1137
1138 if (!mvmvif->dbgfs_dir) {
1139 IWL_ERR(mvm, "Failed to create debugfs directory under %s\n",
1140 dbgfs_dir->d_name.name);
1141 return;
1142 }
1143
1144 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
1145 vif->type == NL80211_IFTYPE_STATION && !vif->p2p)
1146 MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
1147 S_IRUSR);
1148
1149 MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
1150 S_IRUSR);
1151
1152 if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1153 mvmvif == mvm->bf_allowed_vif)
1154 MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
1155 S_IRUSR | S_IWUSR);
1156
1157 /*
1158 * Create symlink for convenience pointing to interface specific
1159 * debugfs entries for the driver. For example, under
1160 * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
1161 * find
1162 * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
1163 */
1164 snprintf(buf, 100, "../../../%s/%s/%s/%s",
1165 dbgfs_dir->d_parent->d_parent->d_name.name,
1166 dbgfs_dir->d_parent->d_name.name,
1167 dbgfs_dir->d_name.name,
1168 mvmvif->dbgfs_dir->d_name.name);
1169
1170 mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name,
1171 mvm->debugfs_dir, buf);
1172 if (!mvmvif->dbgfs_slink)
1173 IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n",
1174 dbgfs_dir->d_name.name);
1175 return;
1176 err:
1177 IWL_ERR(mvm, "Can't create debugfs entity\n");
1178 }
1179
1180 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1181 {
1182 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1183
1184 debugfs_remove(mvmvif->dbgfs_slink);
1185 mvmvif->dbgfs_slink = NULL;
1186
1187 debugfs_remove_recursive(mvmvif->dbgfs_dir);
1188 mvmvif->dbgfs_dir = NULL;
1189 }
Linux with added FPC-III support