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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / drivers / net / wireless / iwlwifi / mvm / debugfs.c
blob369d4c90e669020a6fbb924122e2691247e54d7b
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 *
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 - 2014 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 #include "iwl-prph.h"
67 #include "debugfs.h"
68
69 static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf,
70 size_t count, loff_t *ppos)
71 {
72 int ret;
73 u32 scd_q_msk;
74
75 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
76 return -EIO;
77
78 if (sscanf(buf, "%x", &scd_q_msk) != 1)
79 return -EINVAL;
80
81 IWL_ERR(mvm, "FLUSHING queues: scd_q_msk = 0x%x\n", scd_q_msk);
82
83 mutex_lock(&mvm->mutex);
84 ret = iwl_mvm_flush_tx_path(mvm, scd_q_msk, true) ? : count;
85 mutex_unlock(&mvm->mutex);
86
87 return ret;
88 }
89
90 static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf,
91 size_t count, loff_t *ppos)
92 {
93 struct ieee80211_sta *sta;
94 int sta_id, drain, ret;
95
96 if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR)
97 return -EIO;
98
99 if (sscanf(buf, "%d %d", &sta_id, &drain) != 2)
100 return -EINVAL;
101 if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT)
102 return -EINVAL;
103 if (drain < 0 || drain > 1)
104 return -EINVAL;
105
106 mutex_lock(&mvm->mutex);
107
108 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
109 lockdep_is_held(&mvm->mutex));
110 if (IS_ERR_OR_NULL(sta))
111 ret = -ENOENT;
112 else
113 ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? :
114 count;
115
116 mutex_unlock(&mvm->mutex);
117
118 return ret;
119 }
120
121 static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
122 size_t count, loff_t *ppos)
123 {
124 struct iwl_mvm *mvm = file->private_data;
125 const struct fw_img *img;
126 unsigned int ofs, len;
127 size_t ret;
128 u8 *ptr;
129
130 if (!mvm->ucode_loaded)
131 return -EINVAL;
132
133 /* default is to dump the entire data segment */
134 img = &mvm->fw->img[mvm->cur_ucode];
135 ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
136 len = img->sec[IWL_UCODE_SECTION_DATA].len;
137
138 if (mvm->dbgfs_sram_len) {
139 ofs = mvm->dbgfs_sram_offset;
140 len = mvm->dbgfs_sram_len;
141 }
142
143 ptr = kzalloc(len, GFP_KERNEL);
144 if (!ptr)
145 return -ENOMEM;
146
147 iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
148
149 ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len);
150
151 kfree(ptr);
152
153 return ret;
154 }
155
156 static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf,
157 size_t count, loff_t *ppos)
158 {
159 const struct fw_img *img;
160 u32 offset, len;
161 u32 img_offset, img_len;
162
163 if (!mvm->ucode_loaded)
164 return -EINVAL;
165
166 img = &mvm->fw->img[mvm->cur_ucode];
167 img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset;
168 img_len = img->sec[IWL_UCODE_SECTION_DATA].len;
169
170 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
171 if ((offset & 0x3) || (len & 0x3))
172 return -EINVAL;
173
174 if (offset + len > img_offset + img_len)
175 return -EINVAL;
176
177 mvm->dbgfs_sram_offset = offset;
178 mvm->dbgfs_sram_len = len;
179 } else {
180 mvm->dbgfs_sram_offset = 0;
181 mvm->dbgfs_sram_len = 0;
182 }
183
184 return count;
185 }
186
187 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
188 size_t count, loff_t *ppos)
189 {
190 struct iwl_mvm *mvm = file->private_data;
191 struct ieee80211_sta *sta;
192 char buf[400];
193 int i, pos = 0, bufsz = sizeof(buf);
194
195 mutex_lock(&mvm->mutex);
196
197 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
198 pos += scnprintf(buf + pos, bufsz - pos, "%.2d: ", i);
199 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
200 lockdep_is_held(&mvm->mutex));
201 if (!sta)
202 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
203 else if (IS_ERR(sta))
204 pos += scnprintf(buf + pos, bufsz - pos, "%ld\n",
205 PTR_ERR(sta));
206 else
207 pos += scnprintf(buf + pos, bufsz - pos, "%pM\n",
208 sta->addr);
209 }
210
211 mutex_unlock(&mvm->mutex);
212
213 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
214 }
215
216 static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
217 char __user *user_buf,
218 size_t count, loff_t *ppos)
219 {
220 struct iwl_mvm *mvm = file->private_data;
221 char buf[64];
222 int bufsz = sizeof(buf);
223 int pos = 0;
224
225 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
226 mvm->disable_power_off);
227 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
228 mvm->disable_power_off_d3);
229
230 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
231 }
232
233 static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf,
234 size_t count, loff_t *ppos)
235 {
236 int ret, val;
237
238 if (!mvm->ucode_loaded)
239 return -EIO;
240
241 if (!strncmp("disable_power_off_d0=", buf, 21)) {
242 if (sscanf(buf + 21, "%d", &val) != 1)
243 return -EINVAL;
244 mvm->disable_power_off = val;
245 } else if (!strncmp("disable_power_off_d3=", buf, 21)) {
246 if (sscanf(buf + 21, "%d", &val) != 1)
247 return -EINVAL;
248 mvm->disable_power_off_d3 = val;
249 } else {
250 return -EINVAL;
251 }
252
253 mutex_lock(&mvm->mutex);
254 ret = iwl_mvm_power_update_device_mode(mvm);
255 mutex_unlock(&mvm->mutex);
256
257 return ret ?: count;
258 }
259
260 #define BT_MBOX_MSG(_notif, _num, _field) \
261 ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
262 >> BT_MBOX##_num##_##_field##_POS)
263
264
265 #define BT_MBOX_PRINT(_num, _field, _end) \
266 pos += scnprintf(buf + pos, bufsz - pos, \
267 "\t%s: %d%s", \
268 #_field, \
269 BT_MBOX_MSG(notif, _num, _field), \
270 true ? "\n" : ", ");
271
272 static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
273 size_t count, loff_t *ppos)
274 {
275 struct iwl_mvm *mvm = file->private_data;
276 struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif;
277 char *buf;
278 int ret, pos = 0, bufsz = sizeof(char) * 1024;
279
280 buf = kmalloc(bufsz, GFP_KERNEL);
281 if (!buf)
282 return -ENOMEM;
283
284 mutex_lock(&mvm->mutex);
285
286 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw0:\n");
287
288 BT_MBOX_PRINT(0, LE_SLAVE_LAT, false);
289 BT_MBOX_PRINT(0, LE_PROF1, false);
290 BT_MBOX_PRINT(0, LE_PROF2, false);
291 BT_MBOX_PRINT(0, LE_PROF_OTHER, false);
292 BT_MBOX_PRINT(0, CHL_SEQ_N, false);
293 BT_MBOX_PRINT(0, INBAND_S, false);
294 BT_MBOX_PRINT(0, LE_MIN_RSSI, false);
295 BT_MBOX_PRINT(0, LE_SCAN, false);
296 BT_MBOX_PRINT(0, LE_ADV, false);
297 BT_MBOX_PRINT(0, LE_MAX_TX_POWER, false);
298 BT_MBOX_PRINT(0, OPEN_CON_1, true);
299
300 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw1:\n");
301
302 BT_MBOX_PRINT(1, BR_MAX_TX_POWER, false);
303 BT_MBOX_PRINT(1, IP_SR, false);
304 BT_MBOX_PRINT(1, LE_MSTR, false);
305 BT_MBOX_PRINT(1, AGGR_TRFC_LD, false);
306 BT_MBOX_PRINT(1, MSG_TYPE, false);
307 BT_MBOX_PRINT(1, SSN, true);
308
309 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw2:\n");
310
311 BT_MBOX_PRINT(2, SNIFF_ACT, false);
312 BT_MBOX_PRINT(2, PAG, false);
313 BT_MBOX_PRINT(2, INQUIRY, false);
314 BT_MBOX_PRINT(2, CONN, false);
315 BT_MBOX_PRINT(2, SNIFF_INTERVAL, false);
316 BT_MBOX_PRINT(2, DISC, false);
317 BT_MBOX_PRINT(2, SCO_TX_ACT, false);
318 BT_MBOX_PRINT(2, SCO_RX_ACT, false);
319 BT_MBOX_PRINT(2, ESCO_RE_TX, false);
320 BT_MBOX_PRINT(2, SCO_DURATION, true);
321
322 pos += scnprintf(buf+pos, bufsz-pos, "MBOX dw3:\n");
323
324 BT_MBOX_PRINT(3, SCO_STATE, false);
325 BT_MBOX_PRINT(3, SNIFF_STATE, false);
326 BT_MBOX_PRINT(3, A2DP_STATE, false);
327 BT_MBOX_PRINT(3, ACL_STATE, false);
328 BT_MBOX_PRINT(3, MSTR_STATE, false);
329 BT_MBOX_PRINT(3, OBX_STATE, false);
330 BT_MBOX_PRINT(3, OPEN_CON_2, false);
331 BT_MBOX_PRINT(3, TRAFFIC_LOAD, false);
332 BT_MBOX_PRINT(3, CHL_SEQN_LSB, false);
333 BT_MBOX_PRINT(3, INBAND_P, false);
334 BT_MBOX_PRINT(3, MSG_TYPE_2, false);
335 BT_MBOX_PRINT(3, SSN_2, false);
336 BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
337
338 pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
339 notif->bt_status);
340 pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
341 notif->bt_open_conn);
342 pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
343 notif->bt_traffic_load);
344 pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
345 notif->bt_agg_traffic_load);
346 pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
347 notif->bt_ci_compliance);
348 pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
349 le32_to_cpu(notif->primary_ch_lut));
350 pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
351 le32_to_cpu(notif->secondary_ch_lut));
352 pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
353 le32_to_cpu(notif->bt_activity_grading));
354
355 mutex_unlock(&mvm->mutex);
356
357 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
358 kfree(buf);
359
360 return ret;
361 }
362 #undef BT_MBOX_PRINT
363
364 static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
365 size_t count, loff_t *ppos)
366 {
367 struct iwl_mvm *mvm = file->private_data;
368 struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
369 char buf[256];
370 int bufsz = sizeof(buf);
371 int pos = 0;
372
373 mutex_lock(&mvm->mutex);
374
375 pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
376 pos += scnprintf(buf+pos, bufsz-pos,
377 "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
378 le64_to_cpu(cmd->bt_primary_ci),
379 !!cmd->co_run_bw_primary);
380 pos += scnprintf(buf+pos, bufsz-pos,
381 "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
382 le64_to_cpu(cmd->bt_secondary_ci),
383 !!cmd->co_run_bw_secondary);
384
385 pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
386 pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
387 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
388 pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
389 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
390
391 mutex_unlock(&mvm->mutex);
392
393 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
394 }
395
396 #define PRINT_STATS_LE32(_str, _val) \
397 pos += scnprintf(buf + pos, bufsz - pos, \
398 fmt_table, _str, \
399 le32_to_cpu(_val))
400
401 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
402 char __user *user_buf, size_t count,
403 loff_t *ppos)
404 {
405 struct iwl_mvm *mvm = file->private_data;
406 static const char *fmt_table = "\t%-30s %10u\n";
407 static const char *fmt_header = "%-32s\n";
408 int pos = 0;
409 char *buf;
410 int ret;
411 /* 43 is the size of each data line, 33 is the size of each header */
412 size_t bufsz =
413 ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
414 (4 * 33) + 1;
415
416 struct mvm_statistics_rx_phy *ofdm;
417 struct mvm_statistics_rx_phy *cck;
418 struct mvm_statistics_rx_non_phy *general;
419 struct mvm_statistics_rx_ht_phy *ht;
420
421 buf = kzalloc(bufsz, GFP_KERNEL);
422 if (!buf)
423 return -ENOMEM;
424
425 mutex_lock(&mvm->mutex);
426
427 ofdm = &mvm->rx_stats.ofdm;
428 cck = &mvm->rx_stats.cck;
429 general = &mvm->rx_stats.general;
430 ht = &mvm->rx_stats.ofdm_ht;
431
432 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
433 "Statistics_Rx - OFDM");
434 PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
435 PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
436 PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
437 PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
438 PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
439 PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
440 PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
441 PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
442 PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
443 PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
444 PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
445 PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
446 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
447 ofdm->rxe_frame_limit_overrun);
448 PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
449 PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
450 PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
451 PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
452 PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
453 PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
454 PRINT_STATS_LE32("reserved", ofdm->reserved);
455
456 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
457 "Statistics_Rx - CCK");
458 PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
459 PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
460 PRINT_STATS_LE32("plcp_err", cck->plcp_err);
461 PRINT_STATS_LE32("crc32_err", cck->crc32_err);
462 PRINT_STATS_LE32("overrun_err", cck->overrun_err);
463 PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
464 PRINT_STATS_LE32("crc32_good", cck->crc32_good);
465 PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
466 PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
467 PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
468 PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
469 PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
470 PRINT_STATS_LE32("rxe_frame_lmt_overrun",
471 cck->rxe_frame_limit_overrun);
472 PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
473 PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
474 PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
475 PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
476 PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
477 PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
478 PRINT_STATS_LE32("reserved", cck->reserved);
479
480 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
481 "Statistics_Rx - GENERAL");
482 PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
483 PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
484 PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
485 PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
486 PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
487 PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
488 PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
489 PRINT_STATS_LE32("adc_rx_saturation_time",
490 general->adc_rx_saturation_time);
491 PRINT_STATS_LE32("ina_detection_search_time",
492 general->ina_detection_search_time);
493 PRINT_STATS_LE32("beacon_silence_rssi_a",
494 general->beacon_silence_rssi_a);
495 PRINT_STATS_LE32("beacon_silence_rssi_b",
496 general->beacon_silence_rssi_b);
497 PRINT_STATS_LE32("beacon_silence_rssi_c",
498 general->beacon_silence_rssi_c);
499 PRINT_STATS_LE32("interference_data_flag",
500 general->interference_data_flag);
501 PRINT_STATS_LE32("channel_load", general->channel_load);
502 PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
503 PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
504 PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
505 PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
506 PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
507 PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
508 PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
509 PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
510 PRINT_STATS_LE32("mac_id", general->mac_id);
511 PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
512
513 pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
514 "Statistics_Rx - HT");
515 PRINT_STATS_LE32("plcp_err", ht->plcp_err);
516 PRINT_STATS_LE32("overrun_err", ht->overrun_err);
517 PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
518 PRINT_STATS_LE32("crc32_good", ht->crc32_good);
519 PRINT_STATS_LE32("crc32_err", ht->crc32_err);
520 PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
521 PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
522 PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
523 PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
524 PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
525
526 mutex_unlock(&mvm->mutex);
527
528 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
529 kfree(buf);
530
531 return ret;
532 }
533 #undef PRINT_STAT_LE32
534
535 static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf,
536 size_t count, loff_t *ppos)
537 {
538 int ret;
539
540 mutex_lock(&mvm->mutex);
541
542 /* allow one more restart that we're provoking here */
543 if (mvm->restart_fw >= 0)
544 mvm->restart_fw++;
545
546 /* take the return value to make compiler happy - it will fail anyway */
547 ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL);
548
549 mutex_unlock(&mvm->mutex);
550
551 return count;
552 }
553
554 static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf,
555 size_t count, loff_t *ppos)
556 {
557 iwl_write_prph(mvm->trans, DEVICE_SET_NMI_REG, 1);
558
559 return count;
560 }
561
562 static ssize_t
563 iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
564 char __user *user_buf,
565 size_t count, loff_t *ppos)
566 {
567 struct iwl_mvm *mvm = file->private_data;
568 int pos = 0;
569 char buf[32];
570 const size_t bufsz = sizeof(buf);
571
572 /* print which antennas were set for the scan command by the user */
573 pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
574 if (mvm->scan_rx_ant & ANT_A)
575 pos += scnprintf(buf + pos, bufsz - pos, "A");
576 if (mvm->scan_rx_ant & ANT_B)
577 pos += scnprintf(buf + pos, bufsz - pos, "B");
578 if (mvm->scan_rx_ant & ANT_C)
579 pos += scnprintf(buf + pos, bufsz - pos, "C");
580 pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
581
582 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
583 }
584
585 static ssize_t
586 iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
587 size_t count, loff_t *ppos)
588 {
589 u8 scan_rx_ant;
590
591 if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
592 return -EINVAL;
593 if (scan_rx_ant > ANT_ABC)
594 return -EINVAL;
595 if (scan_rx_ant & ~iwl_fw_valid_rx_ant(mvm->fw))
596 return -EINVAL;
597
598 mvm->scan_rx_ant = scan_rx_ant;
599
600 return count;
601 }
602
603 #ifdef CONFIG_PM_SLEEP
604 static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf,
605 size_t count, loff_t *ppos)
606 {
607 int store;
608
609 if (sscanf(buf, "%d", &store) != 1)
610 return -EINVAL;
611
612 mvm->store_d3_resume_sram = store;
613
614 return count;
615 }
616
617 static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
618 size_t count, loff_t *ppos)
619 {
620 struct iwl_mvm *mvm = file->private_data;
621 const struct fw_img *img;
622 int ofs, len, pos = 0;
623 size_t bufsz, ret;
624 char *buf;
625 u8 *ptr = mvm->d3_resume_sram;
626
627 img = &mvm->fw->img[IWL_UCODE_WOWLAN];
628 len = img->sec[IWL_UCODE_SECTION_DATA].len;
629
630 bufsz = len * 4 + 256;
631 buf = kzalloc(bufsz, GFP_KERNEL);
632 if (!buf)
633 return -ENOMEM;
634
635 pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
636 mvm->store_d3_resume_sram ? "en" : "dis");
637
638 if (ptr) {
639 for (ofs = 0; ofs < len; ofs += 16) {
640 pos += scnprintf(buf + pos, bufsz - pos,
641 "0x%.4x ", ofs);
642 hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
643 bufsz - pos, false);
644 pos += strlen(buf + pos);
645 if (bufsz - pos > 0)
646 buf[pos++] = '\n';
647 }
648 } else {
649 pos += scnprintf(buf + pos, bufsz - pos,
650 "(no data captured)\n");
651 }
652
653 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
654
655 kfree(buf);
656
657 return ret;
658 }
659 #endif
660
661 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
662 _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
663 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
664 _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)
665 #define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do { \
666 if (!debugfs_create_file(#name, mode, parent, mvm, \
667 &iwl_dbgfs_##name##_ops)) \
668 goto err; \
669 } while (0)
670
671 /* Device wide debugfs entries */
672 MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16);
673 MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8);
674 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);
675 MVM_DEBUGFS_READ_FILE_OPS(stations);
676 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
677 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
678 MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);
679 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
680 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);
681 MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);
682 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
683
684 #ifdef CONFIG_PM_SLEEP
685 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
686 #endif
687
688 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
689 {
690 char buf[100];
691
692 mvm->debugfs_dir = dbgfs_dir;
693
694 MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR);
695 MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR);
696 MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
697 MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
698 MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
699 MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
700 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)
701 MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
702 S_IRUSR | S_IWUSR);
703 MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
704 MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
705 MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);
706 MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
707 S_IWUSR | S_IRUSR);
708 #ifdef CONFIG_PM_SLEEP
709 MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
710 MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
711 if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
712 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
713 goto err;
714 #endif
715
716 if (!debugfs_create_blob("nvm_hw", S_IRUSR,
717 mvm->debugfs_dir, &mvm->nvm_hw_blob))
718 goto err;
719 if (!debugfs_create_blob("nvm_sw", S_IRUSR,
720 mvm->debugfs_dir, &mvm->nvm_sw_blob))
721 goto err;
722 if (!debugfs_create_blob("nvm_calib", S_IRUSR,
723 mvm->debugfs_dir, &mvm->nvm_calib_blob))
724 goto err;
725 if (!debugfs_create_blob("nvm_prod", S_IRUSR,
726 mvm->debugfs_dir, &mvm->nvm_prod_blob))
727 goto err;
728
729 /*
730 * Create a symlink with mac80211. It will be removed when mac80211
731 * exists (before the opmode exists which removes the target.)
732 */
733 snprintf(buf, 100, "../../%s/%s",
734 dbgfs_dir->d_parent->d_parent->d_name.name,
735 dbgfs_dir->d_parent->d_name.name);
736 if (!debugfs_create_symlink("iwlwifi", mvm->hw->wiphy->debugfsdir, buf))
737 goto err;
738
739 return 0;
740 err:
741 IWL_ERR(mvm, "Can't create the mvm debugfs directory\n");
742 return -ENOMEM;
743 }
Linux with added FPC-III support