1 /******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called COPYING.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28
29 #include <linux/slab.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/debugfs.h>
33 #include <linux/ieee80211.h>
34 #include <net/mac80211.h>
35 #include "iwl-debug.h"
36 #include "iwl-io.h"
37 #include "dev.h"
38 #include "agn.h"
39
40 /* create and remove of files */
41 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
42 if (!debugfs_create_file(#name, mode, parent, priv, \
43 &iwl_dbgfs_##name##_ops)) \
44 goto err; \
45 } while (0)
46
47 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
48 struct dentry *__tmp; \
49 __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
50 parent, ptr); \
51 if (IS_ERR(__tmp) || !__tmp) \
52 goto err; \
53 } while (0)
54
55 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
56 struct dentry *__tmp; \
57 __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
58 parent, ptr); \
59 if (IS_ERR(__tmp) || !__tmp) \
60 goto err; \
61 } while (0)
62
63 #define DEBUGFS_ADD_U32(name, parent, ptr, mode) do { \
64 struct dentry *__tmp; \
65 __tmp = debugfs_create_u32(#name, mode, \
66 parent, ptr); \
67 if (IS_ERR(__tmp) || !__tmp) \
68 goto err; \
69 } while (0)
70
71 /* file operation */
72 #define DEBUGFS_READ_FILE_OPS(name) \
73 static const struct file_operations iwl_dbgfs_##name##_ops = { \
74 .read = iwl_dbgfs_##name##_read, \
75 .open = simple_open, \
76 .llseek = generic_file_llseek, \
77 };
78
79 #define DEBUGFS_WRITE_FILE_OPS(name) \
80 static const struct file_operations iwl_dbgfs_##name##_ops = { \
81 .write = iwl_dbgfs_##name##_write, \
82 .open = simple_open, \
83 .llseek = generic_file_llseek, \
84 };
85
86
87 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
88 static const struct file_operations iwl_dbgfs_##name##_ops = { \
89 .write = iwl_dbgfs_##name##_write, \
90 .read = iwl_dbgfs_##name##_read, \
91 .open = simple_open, \
92 .llseek = generic_file_llseek, \
93 };
94
iwl_dbgfs_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)95 static ssize_t iwl_dbgfs_sram_read(struct file *file,
96 char __user *user_buf,
97 size_t count, loff_t *ppos)
98 {
99 u32 val = 0;
100 char *buf;
101 ssize_t ret;
102 int i = 0;
103 bool device_format = false;
104 int offset = 0;
105 int len = 0;
106 int pos = 0;
107 int sram;
108 struct iwl_priv *priv = file->private_data;
109 const struct fw_img *img;
110 size_t bufsz;
111
112 if (!iwl_is_ready_rf(priv))
113 return -EAGAIN;
114
115 /* default is to dump the entire data segment */
116 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
117 priv->dbgfs_sram_offset = 0x800000;
118 if (!priv->ucode_loaded)
119 return -EINVAL;
120 img = &priv->fw->img[priv->cur_ucode];
121 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
122 }
123 len = priv->dbgfs_sram_len;
124
125 if (len == -4) {
126 device_format = true;
127 len = 4;
128 }
129
130 bufsz = 50 + len * 4;
131 buf = kmalloc(bufsz, GFP_KERNEL);
132 if (!buf)
133 return -ENOMEM;
134
135 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
136 len);
137 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
138 priv->dbgfs_sram_offset);
139
140 /* adjust sram address since reads are only on even u32 boundaries */
141 offset = priv->dbgfs_sram_offset & 0x3;
142 sram = priv->dbgfs_sram_offset & ~0x3;
143
144 /* read the first u32 from sram */
145 val = iwl_trans_read_mem32(priv->trans, sram);
146
147 for (; len; len--) {
148 /* put the address at the start of every line */
149 if (i == 0)
150 pos += scnprintf(buf + pos, bufsz - pos,
151 "%08X: ", sram + offset);
152
153 if (device_format)
154 pos += scnprintf(buf + pos, bufsz - pos,
155 "%02x", (val >> (8 * (3 - offset))) & 0xff);
156 else
157 pos += scnprintf(buf + pos, bufsz - pos,
158 "%02x ", (val >> (8 * offset)) & 0xff);
159
160 /* if all bytes processed, read the next u32 from sram */
161 if (++offset == 4) {
162 sram += 4;
163 offset = 0;
164 val = iwl_trans_read_mem32(priv->trans, sram);
165 }
166
167 /* put in extra spaces and split lines for human readability */
168 if (++i == 16) {
169 i = 0;
170 pos += scnprintf(buf + pos, bufsz - pos, "\n");
171 } else if (!(i & 7)) {
172 pos += scnprintf(buf + pos, bufsz - pos, " ");
173 } else if (!(i & 3)) {
174 pos += scnprintf(buf + pos, bufsz - pos, " ");
175 }
176 }
177 if (i)
178 pos += scnprintf(buf + pos, bufsz - pos, "\n");
179
180 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
181 kfree(buf);
182 return ret;
183 }
184
iwl_dbgfs_sram_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)185 static ssize_t iwl_dbgfs_sram_write(struct file *file,
186 const char __user *user_buf,
187 size_t count, loff_t *ppos)
188 {
189 struct iwl_priv *priv = file->private_data;
190 char buf[64];
191 int buf_size;
192 u32 offset, len;
193
194 memset(buf, 0, sizeof(buf));
195 buf_size = min(count, sizeof(buf) - 1);
196 if (copy_from_user(buf, user_buf, buf_size))
197 return -EFAULT;
198
199 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
200 priv->dbgfs_sram_offset = offset;
201 priv->dbgfs_sram_len = len;
202 } else if (sscanf(buf, "%x", &offset) == 1) {
203 priv->dbgfs_sram_offset = offset;
204 priv->dbgfs_sram_len = -4;
205 } else {
206 priv->dbgfs_sram_offset = 0;
207 priv->dbgfs_sram_len = 0;
208 }
209
210 return count;
211 }
212
iwl_dbgfs_wowlan_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)213 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
214 char __user *user_buf,
215 size_t count, loff_t *ppos)
216 {
217 struct iwl_priv *priv = file->private_data;
218 const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
219
220 if (!priv->wowlan_sram)
221 return -ENODATA;
222
223 return simple_read_from_buffer(user_buf, count, ppos,
224 priv->wowlan_sram,
225 img->sec[IWL_UCODE_SECTION_DATA].len);
226 }
iwl_dbgfs_stations_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)227 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
228 size_t count, loff_t *ppos)
229 {
230 struct iwl_priv *priv = file->private_data;
231 struct iwl_station_entry *station;
232 struct iwl_tid_data *tid_data;
233 char *buf;
234 int i, j, pos = 0;
235 ssize_t ret;
236 /* Add 30 for initial string */
237 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
238
239 buf = kmalloc(bufsz, GFP_KERNEL);
240 if (!buf)
241 return -ENOMEM;
242
243 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
244 priv->num_stations);
245
246 for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
247 station = &priv->stations[i];
248 if (!station->used)
249 continue;
250 pos += scnprintf(buf + pos, bufsz - pos,
251 "station %d - addr: %pM, flags: %#x\n",
252 i, station->sta.sta.addr,
253 station->sta.station_flags_msk);
254 pos += scnprintf(buf + pos, bufsz - pos,
255 "TID seqno next_rclmd "
256 "rate_n_flags state txq\n");
257
258 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
259 tid_data = &priv->tid_data[i][j];
260 pos += scnprintf(buf + pos, bufsz - pos,
261 "%d: 0x%.4x 0x%.4x 0x%.8x "
262 "%d %.2d",
263 j, tid_data->seq_number,
264 tid_data->next_reclaimed,
265 tid_data->agg.rate_n_flags,
266 tid_data->agg.state,
267 tid_data->agg.txq_id);
268
269 if (tid_data->agg.wait_for_ba)
270 pos += scnprintf(buf + pos, bufsz - pos,
271 " - waitforba");
272 pos += scnprintf(buf + pos, bufsz - pos, "\n");
273 }
274
275 pos += scnprintf(buf + pos, bufsz - pos, "\n");
276 }
277
278 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
279 kfree(buf);
280 return ret;
281 }
282
iwl_dbgfs_nvm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)283 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
284 char __user *user_buf,
285 size_t count,
286 loff_t *ppos)
287 {
288 ssize_t ret;
289 struct iwl_priv *priv = file->private_data;
290 int pos = 0, ofs = 0, buf_size = 0;
291 const u8 *ptr;
292 char *buf;
293 u16 nvm_ver;
294 size_t eeprom_len = priv->eeprom_blob_size;
295 buf_size = 4 * eeprom_len + 256;
296
297 if (eeprom_len % 16)
298 return -ENODATA;
299
300 ptr = priv->eeprom_blob;
301 if (!ptr)
302 return -ENOMEM;
303
304 /* 4 characters for byte 0xYY */
305 buf = kzalloc(buf_size, GFP_KERNEL);
306 if (!buf)
307 return -ENOMEM;
308
309 nvm_ver = priv->nvm_data->nvm_version;
310 pos += scnprintf(buf + pos, buf_size - pos,
311 "NVM version: 0x%x\n", nvm_ver);
312 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
313 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
314 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
315 buf_size - pos, 0);
316 pos += strlen(buf + pos);
317 if (buf_size - pos > 0)
318 buf[pos++] = '\n';
319 }
320
321 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
322 kfree(buf);
323 return ret;
324 }
325
iwl_dbgfs_channels_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)326 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
327 size_t count, loff_t *ppos)
328 {
329 struct iwl_priv *priv = file->private_data;
330 struct ieee80211_channel *channels = NULL;
331 const struct ieee80211_supported_band *supp_band = NULL;
332 int pos = 0, i, bufsz = PAGE_SIZE;
333 char *buf;
334 ssize_t ret;
335
336 buf = kzalloc(bufsz, GFP_KERNEL);
337 if (!buf)
338 return -ENOMEM;
339
340 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
341 if (supp_band) {
342 channels = supp_band->channels;
343
344 pos += scnprintf(buf + pos, bufsz - pos,
345 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
346 supp_band->n_channels);
347
348 for (i = 0; i < supp_band->n_channels; i++)
349 pos += scnprintf(buf + pos, bufsz - pos,
350 "%d: %ddBm: BSS%s%s, %s.\n",
351 channels[i].hw_value,
352 channels[i].max_power,
353 channels[i].flags & IEEE80211_CHAN_RADAR ?
354 " (IEEE 802.11h required)" : "",
355 ((channels[i].flags & IEEE80211_CHAN_NO_IR)
356 || (channels[i].flags &
357 IEEE80211_CHAN_RADAR)) ? "" :
358 ", IBSS",
359 channels[i].flags &
360 IEEE80211_CHAN_NO_IR ?
361 "passive only" : "active/passive");
362 }
363 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
364 if (supp_band) {
365 channels = supp_band->channels;
366
367 pos += scnprintf(buf + pos, bufsz - pos,
368 "Displaying %d channels in 5.2GHz band (802.11a)\n",
369 supp_band->n_channels);
370
371 for (i = 0; i < supp_band->n_channels; i++)
372 pos += scnprintf(buf + pos, bufsz - pos,
373 "%d: %ddBm: BSS%s%s, %s.\n",
374 channels[i].hw_value,
375 channels[i].max_power,
376 channels[i].flags & IEEE80211_CHAN_RADAR ?
377 " (IEEE 802.11h required)" : "",
378 ((channels[i].flags & IEEE80211_CHAN_NO_IR)
379 || (channels[i].flags &
380 IEEE80211_CHAN_RADAR)) ? "" :
381 ", IBSS",
382 channels[i].flags &
383 IEEE80211_CHAN_NO_IR ?
384 "passive only" : "active/passive");
385 }
386 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
387 kfree(buf);
388 return ret;
389 }
390
iwl_dbgfs_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)391 static ssize_t iwl_dbgfs_status_read(struct file *file,
392 char __user *user_buf,
393 size_t count, loff_t *ppos) {
394
395 struct iwl_priv *priv = file->private_data;
396 char buf[512];
397 int pos = 0;
398 const size_t bufsz = sizeof(buf);
399
400 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
401 test_bit(STATUS_RF_KILL_HW, &priv->status));
402 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
403 test_bit(STATUS_CT_KILL, &priv->status));
404 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
405 test_bit(STATUS_ALIVE, &priv->status));
406 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
407 test_bit(STATUS_READY, &priv->status));
408 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
409 test_bit(STATUS_EXIT_PENDING, &priv->status));
410 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
411 test_bit(STATUS_STATISTICS, &priv->status));
412 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
413 test_bit(STATUS_SCANNING, &priv->status));
414 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
415 test_bit(STATUS_SCAN_ABORTING, &priv->status));
416 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
417 test_bit(STATUS_SCAN_HW, &priv->status));
418 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
419 test_bit(STATUS_POWER_PMI, &priv->status));
420 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
421 test_bit(STATUS_FW_ERROR, &priv->status));
422 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
423 }
424
iwl_dbgfs_rx_handlers_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)425 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
426 char __user *user_buf,
427 size_t count, loff_t *ppos) {
428
429 struct iwl_priv *priv = file->private_data;
430
431 int pos = 0;
432 int cnt = 0;
433 char *buf;
434 int bufsz = 24 * 64; /* 24 items * 64 char per item */
435 ssize_t ret;
436
437 buf = kzalloc(bufsz, GFP_KERNEL);
438 if (!buf)
439 return -ENOMEM;
440
441 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
442 if (priv->rx_handlers_stats[cnt] > 0)
443 pos += scnprintf(buf + pos, bufsz - pos,
444 "\tRx handler[%36s]:\t\t %u\n",
445 iwl_dvm_get_cmd_string(cnt),
446 priv->rx_handlers_stats[cnt]);
447 }
448
449 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
450 kfree(buf);
451 return ret;
452 }
453
iwl_dbgfs_rx_handlers_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)454 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
455 const char __user *user_buf,
456 size_t count, loff_t *ppos)
457 {
458 struct iwl_priv *priv = file->private_data;
459
460 char buf[8];
461 int buf_size;
462 u32 reset_flag;
463
464 memset(buf, 0, sizeof(buf));
465 buf_size = min(count, sizeof(buf) - 1);
466 if (copy_from_user(buf, user_buf, buf_size))
467 return -EFAULT;
468 if (sscanf(buf, "%x", &reset_flag) != 1)
469 return -EFAULT;
470 if (reset_flag == 0)
471 memset(&priv->rx_handlers_stats[0], 0,
472 sizeof(priv->rx_handlers_stats));
473
474 return count;
475 }
476
iwl_dbgfs_qos_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)477 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
478 size_t count, loff_t *ppos)
479 {
480 struct iwl_priv *priv = file->private_data;
481 struct iwl_rxon_context *ctx;
482 int pos = 0, i;
483 char buf[256 * NUM_IWL_RXON_CTX];
484 const size_t bufsz = sizeof(buf);
485
486 for_each_context(priv, ctx) {
487 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
488 ctx->ctxid);
489 for (i = 0; i < AC_NUM; i++) {
490 pos += scnprintf(buf + pos, bufsz - pos,
491 "\tcw_min\tcw_max\taifsn\ttxop\n");
492 pos += scnprintf(buf + pos, bufsz - pos,
493 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
494 ctx->qos_data.def_qos_parm.ac[i].cw_min,
495 ctx->qos_data.def_qos_parm.ac[i].cw_max,
496 ctx->qos_data.def_qos_parm.ac[i].aifsn,
497 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
498 }
499 pos += scnprintf(buf + pos, bufsz - pos, "\n");
500 }
501 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
502 }
503
iwl_dbgfs_thermal_throttling_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)504 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
505 char __user *user_buf,
506 size_t count, loff_t *ppos)
507 {
508 struct iwl_priv *priv = file->private_data;
509 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
510 struct iwl_tt_restriction *restriction;
511 char buf[100];
512 int pos = 0;
513 const size_t bufsz = sizeof(buf);
514
515 pos += scnprintf(buf + pos, bufsz - pos,
516 "Thermal Throttling Mode: %s\n",
517 tt->advanced_tt ? "Advance" : "Legacy");
518 pos += scnprintf(buf + pos, bufsz - pos,
519 "Thermal Throttling State: %d\n",
520 tt->state);
521 if (tt->advanced_tt) {
522 restriction = tt->restriction + tt->state;
523 pos += scnprintf(buf + pos, bufsz - pos,
524 "Tx mode: %d\n",
525 restriction->tx_stream);
526 pos += scnprintf(buf + pos, bufsz - pos,
527 "Rx mode: %d\n",
528 restriction->rx_stream);
529 pos += scnprintf(buf + pos, bufsz - pos,
530 "HT mode: %d\n",
531 restriction->is_ht);
532 }
533 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
534 }
535
iwl_dbgfs_disable_ht40_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)536 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
537 const char __user *user_buf,
538 size_t count, loff_t *ppos)
539 {
540 struct iwl_priv *priv = file->private_data;
541 char buf[8];
542 int buf_size;
543 int ht40;
544
545 memset(buf, 0, sizeof(buf));
546 buf_size = min(count, sizeof(buf) - 1);
547 if (copy_from_user(buf, user_buf, buf_size))
548 return -EFAULT;
549 if (sscanf(buf, "%d", &ht40) != 1)
550 return -EFAULT;
551 if (!iwl_is_any_associated(priv))
552 priv->disable_ht40 = ht40 ? true : false;
553 else
554 return -EINVAL;
555
556 return count;
557 }
558
iwl_dbgfs_disable_ht40_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)559 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
560 char __user *user_buf,
561 size_t count, loff_t *ppos)
562 {
563 struct iwl_priv *priv = file->private_data;
564 char buf[100];
565 int pos = 0;
566 const size_t bufsz = sizeof(buf);
567
568 pos += scnprintf(buf + pos, bufsz - pos,
569 "11n 40MHz Mode: %s\n",
570 priv->disable_ht40 ? "Disabled" : "Enabled");
571 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
572 }
573
iwl_dbgfs_temperature_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)574 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
575 char __user *user_buf,
576 size_t count, loff_t *ppos)
577 {
578 struct iwl_priv *priv = file->private_data;
579 char buf[8];
580 int pos = 0;
581 const size_t bufsz = sizeof(buf);
582
583 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
584 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
585 }
586
587
iwl_dbgfs_sleep_level_override_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)588 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
589 const char __user *user_buf,
590 size_t count, loff_t *ppos)
591 {
592 struct iwl_priv *priv = file->private_data;
593 char buf[8];
594 int buf_size;
595 int value;
596
597 memset(buf, 0, sizeof(buf));
598 buf_size = min(count, sizeof(buf) - 1);
599 if (copy_from_user(buf, user_buf, buf_size))
600 return -EFAULT;
601
602 if (sscanf(buf, "%d", &value) != 1)
603 return -EINVAL;
604
605 /*
606 * Our users expect 0 to be "CAM", but 0 isn't actually
607 * valid here. However, let's not confuse them and present
608 * IWL_POWER_INDEX_1 as "1", not "0".
609 */
610 if (value == 0)
611 return -EINVAL;
612 else if (value > 0)
613 value -= 1;
614
615 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
616 return -EINVAL;
617
618 if (!iwl_is_ready_rf(priv))
619 return -EAGAIN;
620
621 priv->power_data.debug_sleep_level_override = value;
622
623 mutex_lock(&priv->mutex);
624 iwl_power_update_mode(priv, true);
625 mutex_unlock(&priv->mutex);
626
627 return count;
628 }
629
iwl_dbgfs_sleep_level_override_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)630 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
631 char __user *user_buf,
632 size_t count, loff_t *ppos)
633 {
634 struct iwl_priv *priv = file->private_data;
635 char buf[10];
636 int pos, value;
637 const size_t bufsz = sizeof(buf);
638
639 /* see the write function */
640 value = priv->power_data.debug_sleep_level_override;
641 if (value >= 0)
642 value += 1;
643
644 pos = scnprintf(buf, bufsz, "%d\n", value);
645 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
646 }
647
iwl_dbgfs_current_sleep_command_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)648 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
649 char __user *user_buf,
650 size_t count, loff_t *ppos)
651 {
652 struct iwl_priv *priv = file->private_data;
653 char buf[200];
654 int pos = 0, i;
655 const size_t bufsz = sizeof(buf);
656 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
657
658 pos += scnprintf(buf + pos, bufsz - pos,
659 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
660 pos += scnprintf(buf + pos, bufsz - pos,
661 "RX/TX timeout: %d/%d usec\n",
662 le32_to_cpu(cmd->rx_data_timeout),
663 le32_to_cpu(cmd->tx_data_timeout));
664 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
665 pos += scnprintf(buf + pos, bufsz - pos,
666 "sleep_interval[%d]: %d\n", i,
667 le32_to_cpu(cmd->sleep_interval[i]));
668
669 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
670 }
671
672 DEBUGFS_READ_WRITE_FILE_OPS(sram);
673 DEBUGFS_READ_FILE_OPS(wowlan_sram);
674 DEBUGFS_READ_FILE_OPS(nvm);
675 DEBUGFS_READ_FILE_OPS(stations);
676 DEBUGFS_READ_FILE_OPS(channels);
677 DEBUGFS_READ_FILE_OPS(status);
678 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
679 DEBUGFS_READ_FILE_OPS(qos);
680 DEBUGFS_READ_FILE_OPS(thermal_throttling);
681 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
682 DEBUGFS_READ_FILE_OPS(temperature);
683 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
684 DEBUGFS_READ_FILE_OPS(current_sleep_command);
685
686 static const char *fmt_value = " %-30s %10u\n";
687 static const char *fmt_hex = " %-30s 0x%02X\n";
688 static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
689 static const char *fmt_header =
690 "%-32s current cumulative delta max\n";
691
iwl_statistics_flag(struct iwl_priv * priv,char * buf,int bufsz)692 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
693 {
694 int p = 0;
695 u32 flag;
696
697 lockdep_assert_held(&priv->statistics.lock);
698
699 flag = le32_to_cpu(priv->statistics.flag);
700
701 p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
702 if (flag & UCODE_STATISTICS_CLEAR_MSK)
703 p += scnprintf(buf + p, bufsz - p,
704 "\tStatistics have been cleared\n");
705 p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
706 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
707 ? "2.4 GHz" : "5.2 GHz");
708 p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
709 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
710 ? "enabled" : "disabled");
711
712 return p;
713 }
714
iwl_dbgfs_ucode_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)715 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
716 char __user *user_buf,
717 size_t count, loff_t *ppos)
718 {
719 struct iwl_priv *priv = file->private_data;
720 int pos = 0;
721 char *buf;
722 int bufsz = sizeof(struct statistics_rx_phy) * 40 +
723 sizeof(struct statistics_rx_non_phy) * 40 +
724 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
725 ssize_t ret;
726 struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
727 struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
728 struct statistics_rx_non_phy *general, *accum_general;
729 struct statistics_rx_non_phy *delta_general, *max_general;
730 struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
731
732 if (!iwl_is_alive(priv))
733 return -EAGAIN;
734
735 buf = kzalloc(bufsz, GFP_KERNEL);
736 if (!buf)
737 return -ENOMEM;
738
739 /*
740 * the statistic information display here is based on
741 * the last statistics notification from uCode
742 * might not reflect the current uCode activity
743 */
744 spin_lock_bh(&priv->statistics.lock);
745 ofdm = &priv->statistics.rx_ofdm;
746 cck = &priv->statistics.rx_cck;
747 general = &priv->statistics.rx_non_phy;
748 ht = &priv->statistics.rx_ofdm_ht;
749 accum_ofdm = &priv->accum_stats.rx_ofdm;
750 accum_cck = &priv->accum_stats.rx_cck;
751 accum_general = &priv->accum_stats.rx_non_phy;
752 accum_ht = &priv->accum_stats.rx_ofdm_ht;
753 delta_ofdm = &priv->delta_stats.rx_ofdm;
754 delta_cck = &priv->delta_stats.rx_cck;
755 delta_general = &priv->delta_stats.rx_non_phy;
756 delta_ht = &priv->delta_stats.rx_ofdm_ht;
757 max_ofdm = &priv->max_delta_stats.rx_ofdm;
758 max_cck = &priv->max_delta_stats.rx_cck;
759 max_general = &priv->max_delta_stats.rx_non_phy;
760 max_ht = &priv->max_delta_stats.rx_ofdm_ht;
761
762 pos += iwl_statistics_flag(priv, buf, bufsz);
763 pos += scnprintf(buf + pos, bufsz - pos,
764 fmt_header, "Statistics_Rx - OFDM:");
765 pos += scnprintf(buf + pos, bufsz - pos,
766 fmt_table, "ina_cnt:",
767 le32_to_cpu(ofdm->ina_cnt),
768 accum_ofdm->ina_cnt,
769 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
770 pos += scnprintf(buf + pos, bufsz - pos,
771 fmt_table, "fina_cnt:",
772 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
773 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
774 pos += scnprintf(buf + pos, bufsz - pos,
775 fmt_table, "plcp_err:",
776 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
777 delta_ofdm->plcp_err, max_ofdm->plcp_err);
778 pos += scnprintf(buf + pos, bufsz - pos,
779 fmt_table, "crc32_err:",
780 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
781 delta_ofdm->crc32_err, max_ofdm->crc32_err);
782 pos += scnprintf(buf + pos, bufsz - pos,
783 fmt_table, "overrun_err:",
784 le32_to_cpu(ofdm->overrun_err),
785 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
786 max_ofdm->overrun_err);
787 pos += scnprintf(buf + pos, bufsz - pos,
788 fmt_table, "early_overrun_err:",
789 le32_to_cpu(ofdm->early_overrun_err),
790 accum_ofdm->early_overrun_err,
791 delta_ofdm->early_overrun_err,
792 max_ofdm->early_overrun_err);
793 pos += scnprintf(buf + pos, bufsz - pos,
794 fmt_table, "crc32_good:",
795 le32_to_cpu(ofdm->crc32_good),
796 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
797 max_ofdm->crc32_good);
798 pos += scnprintf(buf + pos, bufsz - pos,
799 fmt_table, "false_alarm_cnt:",
800 le32_to_cpu(ofdm->false_alarm_cnt),
801 accum_ofdm->false_alarm_cnt,
802 delta_ofdm->false_alarm_cnt,
803 max_ofdm->false_alarm_cnt);
804 pos += scnprintf(buf + pos, bufsz - pos,
805 fmt_table, "fina_sync_err_cnt:",
806 le32_to_cpu(ofdm->fina_sync_err_cnt),
807 accum_ofdm->fina_sync_err_cnt,
808 delta_ofdm->fina_sync_err_cnt,
809 max_ofdm->fina_sync_err_cnt);
810 pos += scnprintf(buf + pos, bufsz - pos,
811 fmt_table, "sfd_timeout:",
812 le32_to_cpu(ofdm->sfd_timeout),
813 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
814 max_ofdm->sfd_timeout);
815 pos += scnprintf(buf + pos, bufsz - pos,
816 fmt_table, "fina_timeout:",
817 le32_to_cpu(ofdm->fina_timeout),
818 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
819 max_ofdm->fina_timeout);
820 pos += scnprintf(buf + pos, bufsz - pos,
821 fmt_table, "unresponded_rts:",
822 le32_to_cpu(ofdm->unresponded_rts),
823 accum_ofdm->unresponded_rts,
824 delta_ofdm->unresponded_rts,
825 max_ofdm->unresponded_rts);
826 pos += scnprintf(buf + pos, bufsz - pos,
827 fmt_table, "rxe_frame_lmt_ovrun:",
828 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
829 accum_ofdm->rxe_frame_limit_overrun,
830 delta_ofdm->rxe_frame_limit_overrun,
831 max_ofdm->rxe_frame_limit_overrun);
832 pos += scnprintf(buf + pos, bufsz - pos,
833 fmt_table, "sent_ack_cnt:",
834 le32_to_cpu(ofdm->sent_ack_cnt),
835 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
836 max_ofdm->sent_ack_cnt);
837 pos += scnprintf(buf + pos, bufsz - pos,
838 fmt_table, "sent_cts_cnt:",
839 le32_to_cpu(ofdm->sent_cts_cnt),
840 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
841 max_ofdm->sent_cts_cnt);
842 pos += scnprintf(buf + pos, bufsz - pos,
843 fmt_table, "sent_ba_rsp_cnt:",
844 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
845 accum_ofdm->sent_ba_rsp_cnt,
846 delta_ofdm->sent_ba_rsp_cnt,
847 max_ofdm->sent_ba_rsp_cnt);
848 pos += scnprintf(buf + pos, bufsz - pos,
849 fmt_table, "dsp_self_kill:",
850 le32_to_cpu(ofdm->dsp_self_kill),
851 accum_ofdm->dsp_self_kill,
852 delta_ofdm->dsp_self_kill,
853 max_ofdm->dsp_self_kill);
854 pos += scnprintf(buf + pos, bufsz - pos,
855 fmt_table, "mh_format_err:",
856 le32_to_cpu(ofdm->mh_format_err),
857 accum_ofdm->mh_format_err,
858 delta_ofdm->mh_format_err,
859 max_ofdm->mh_format_err);
860 pos += scnprintf(buf + pos, bufsz - pos,
861 fmt_table, "re_acq_main_rssi_sum:",
862 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
863 accum_ofdm->re_acq_main_rssi_sum,
864 delta_ofdm->re_acq_main_rssi_sum,
865 max_ofdm->re_acq_main_rssi_sum);
866
867 pos += scnprintf(buf + pos, bufsz - pos,
868 fmt_header, "Statistics_Rx - CCK:");
869 pos += scnprintf(buf + pos, bufsz - pos,
870 fmt_table, "ina_cnt:",
871 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
872 delta_cck->ina_cnt, max_cck->ina_cnt);
873 pos += scnprintf(buf + pos, bufsz - pos,
874 fmt_table, "fina_cnt:",
875 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
876 delta_cck->fina_cnt, max_cck->fina_cnt);
877 pos += scnprintf(buf + pos, bufsz - pos,
878 fmt_table, "plcp_err:",
879 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
880 delta_cck->plcp_err, max_cck->plcp_err);
881 pos += scnprintf(buf + pos, bufsz - pos,
882 fmt_table, "crc32_err:",
883 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
884 delta_cck->crc32_err, max_cck->crc32_err);
885 pos += scnprintf(buf + pos, bufsz - pos,
886 fmt_table, "overrun_err:",
887 le32_to_cpu(cck->overrun_err),
888 accum_cck->overrun_err, delta_cck->overrun_err,
889 max_cck->overrun_err);
890 pos += scnprintf(buf + pos, bufsz - pos,
891 fmt_table, "early_overrun_err:",
892 le32_to_cpu(cck->early_overrun_err),
893 accum_cck->early_overrun_err,
894 delta_cck->early_overrun_err,
895 max_cck->early_overrun_err);
896 pos += scnprintf(buf + pos, bufsz - pos,
897 fmt_table, "crc32_good:",
898 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
899 delta_cck->crc32_good, max_cck->crc32_good);
900 pos += scnprintf(buf + pos, bufsz - pos,
901 fmt_table, "false_alarm_cnt:",
902 le32_to_cpu(cck->false_alarm_cnt),
903 accum_cck->false_alarm_cnt,
904 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
905 pos += scnprintf(buf + pos, bufsz - pos,
906 fmt_table, "fina_sync_err_cnt:",
907 le32_to_cpu(cck->fina_sync_err_cnt),
908 accum_cck->fina_sync_err_cnt,
909 delta_cck->fina_sync_err_cnt,
910 max_cck->fina_sync_err_cnt);
911 pos += scnprintf(buf + pos, bufsz - pos,
912 fmt_table, "sfd_timeout:",
913 le32_to_cpu(cck->sfd_timeout),
914 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
915 max_cck->sfd_timeout);
916 pos += scnprintf(buf + pos, bufsz - pos,
917 fmt_table, "fina_timeout:",
918 le32_to_cpu(cck->fina_timeout),
919 accum_cck->fina_timeout, delta_cck->fina_timeout,
920 max_cck->fina_timeout);
921 pos += scnprintf(buf + pos, bufsz - pos,
922 fmt_table, "unresponded_rts:",
923 le32_to_cpu(cck->unresponded_rts),
924 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
925 max_cck->unresponded_rts);
926 pos += scnprintf(buf + pos, bufsz - pos,
927 fmt_table, "rxe_frame_lmt_ovrun:",
928 le32_to_cpu(cck->rxe_frame_limit_overrun),
929 accum_cck->rxe_frame_limit_overrun,
930 delta_cck->rxe_frame_limit_overrun,
931 max_cck->rxe_frame_limit_overrun);
932 pos += scnprintf(buf + pos, bufsz - pos,
933 fmt_table, "sent_ack_cnt:",
934 le32_to_cpu(cck->sent_ack_cnt),
935 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
936 max_cck->sent_ack_cnt);
937 pos += scnprintf(buf + pos, bufsz - pos,
938 fmt_table, "sent_cts_cnt:",
939 le32_to_cpu(cck->sent_cts_cnt),
940 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
941 max_cck->sent_cts_cnt);
942 pos += scnprintf(buf + pos, bufsz - pos,
943 fmt_table, "sent_ba_rsp_cnt:",
944 le32_to_cpu(cck->sent_ba_rsp_cnt),
945 accum_cck->sent_ba_rsp_cnt,
946 delta_cck->sent_ba_rsp_cnt,
947 max_cck->sent_ba_rsp_cnt);
948 pos += scnprintf(buf + pos, bufsz - pos,
949 fmt_table, "dsp_self_kill:",
950 le32_to_cpu(cck->dsp_self_kill),
951 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
952 max_cck->dsp_self_kill);
953 pos += scnprintf(buf + pos, bufsz - pos,
954 fmt_table, "mh_format_err:",
955 le32_to_cpu(cck->mh_format_err),
956 accum_cck->mh_format_err, delta_cck->mh_format_err,
957 max_cck->mh_format_err);
958 pos += scnprintf(buf + pos, bufsz - pos,
959 fmt_table, "re_acq_main_rssi_sum:",
960 le32_to_cpu(cck->re_acq_main_rssi_sum),
961 accum_cck->re_acq_main_rssi_sum,
962 delta_cck->re_acq_main_rssi_sum,
963 max_cck->re_acq_main_rssi_sum);
964
965 pos += scnprintf(buf + pos, bufsz - pos,
966 fmt_header, "Statistics_Rx - GENERAL:");
967 pos += scnprintf(buf + pos, bufsz - pos,
968 fmt_table, "bogus_cts:",
969 le32_to_cpu(general->bogus_cts),
970 accum_general->bogus_cts, delta_general->bogus_cts,
971 max_general->bogus_cts);
972 pos += scnprintf(buf + pos, bufsz - pos,
973 fmt_table, "bogus_ack:",
974 le32_to_cpu(general->bogus_ack),
975 accum_general->bogus_ack, delta_general->bogus_ack,
976 max_general->bogus_ack);
977 pos += scnprintf(buf + pos, bufsz - pos,
978 fmt_table, "non_bssid_frames:",
979 le32_to_cpu(general->non_bssid_frames),
980 accum_general->non_bssid_frames,
981 delta_general->non_bssid_frames,
982 max_general->non_bssid_frames);
983 pos += scnprintf(buf + pos, bufsz - pos,
984 fmt_table, "filtered_frames:",
985 le32_to_cpu(general->filtered_frames),
986 accum_general->filtered_frames,
987 delta_general->filtered_frames,
988 max_general->filtered_frames);
989 pos += scnprintf(buf + pos, bufsz - pos,
990 fmt_table, "non_channel_beacons:",
991 le32_to_cpu(general->non_channel_beacons),
992 accum_general->non_channel_beacons,
993 delta_general->non_channel_beacons,
994 max_general->non_channel_beacons);
995 pos += scnprintf(buf + pos, bufsz - pos,
996 fmt_table, "channel_beacons:",
997 le32_to_cpu(general->channel_beacons),
998 accum_general->channel_beacons,
999 delta_general->channel_beacons,
1000 max_general->channel_beacons);
1001 pos += scnprintf(buf + pos, bufsz - pos,
1002 fmt_table, "num_missed_bcon:",
1003 le32_to_cpu(general->num_missed_bcon),
1004 accum_general->num_missed_bcon,
1005 delta_general->num_missed_bcon,
1006 max_general->num_missed_bcon);
1007 pos += scnprintf(buf + pos, bufsz - pos,
1008 fmt_table, "adc_rx_saturation_time:",
1009 le32_to_cpu(general->adc_rx_saturation_time),
1010 accum_general->adc_rx_saturation_time,
1011 delta_general->adc_rx_saturation_time,
1012 max_general->adc_rx_saturation_time);
1013 pos += scnprintf(buf + pos, bufsz - pos,
1014 fmt_table, "ina_detect_search_tm:",
1015 le32_to_cpu(general->ina_detection_search_time),
1016 accum_general->ina_detection_search_time,
1017 delta_general->ina_detection_search_time,
1018 max_general->ina_detection_search_time);
1019 pos += scnprintf(buf + pos, bufsz - pos,
1020 fmt_table, "beacon_silence_rssi_a:",
1021 le32_to_cpu(general->beacon_silence_rssi_a),
1022 accum_general->beacon_silence_rssi_a,
1023 delta_general->beacon_silence_rssi_a,
1024 max_general->beacon_silence_rssi_a);
1025 pos += scnprintf(buf + pos, bufsz - pos,
1026 fmt_table, "beacon_silence_rssi_b:",
1027 le32_to_cpu(general->beacon_silence_rssi_b),
1028 accum_general->beacon_silence_rssi_b,
1029 delta_general->beacon_silence_rssi_b,
1030 max_general->beacon_silence_rssi_b);
1031 pos += scnprintf(buf + pos, bufsz - pos,
1032 fmt_table, "beacon_silence_rssi_c:",
1033 le32_to_cpu(general->beacon_silence_rssi_c),
1034 accum_general->beacon_silence_rssi_c,
1035 delta_general->beacon_silence_rssi_c,
1036 max_general->beacon_silence_rssi_c);
1037 pos += scnprintf(buf + pos, bufsz - pos,
1038 fmt_table, "interference_data_flag:",
1039 le32_to_cpu(general->interference_data_flag),
1040 accum_general->interference_data_flag,
1041 delta_general->interference_data_flag,
1042 max_general->interference_data_flag);
1043 pos += scnprintf(buf + pos, bufsz - pos,
1044 fmt_table, "channel_load:",
1045 le32_to_cpu(general->channel_load),
1046 accum_general->channel_load,
1047 delta_general->channel_load,
1048 max_general->channel_load);
1049 pos += scnprintf(buf + pos, bufsz - pos,
1050 fmt_table, "dsp_false_alarms:",
1051 le32_to_cpu(general->dsp_false_alarms),
1052 accum_general->dsp_false_alarms,
1053 delta_general->dsp_false_alarms,
1054 max_general->dsp_false_alarms);
1055 pos += scnprintf(buf + pos, bufsz - pos,
1056 fmt_table, "beacon_rssi_a:",
1057 le32_to_cpu(general->beacon_rssi_a),
1058 accum_general->beacon_rssi_a,
1059 delta_general->beacon_rssi_a,
1060 max_general->beacon_rssi_a);
1061 pos += scnprintf(buf + pos, bufsz - pos,
1062 fmt_table, "beacon_rssi_b:",
1063 le32_to_cpu(general->beacon_rssi_b),
1064 accum_general->beacon_rssi_b,
1065 delta_general->beacon_rssi_b,
1066 max_general->beacon_rssi_b);
1067 pos += scnprintf(buf + pos, bufsz - pos,
1068 fmt_table, "beacon_rssi_c:",
1069 le32_to_cpu(general->beacon_rssi_c),
1070 accum_general->beacon_rssi_c,
1071 delta_general->beacon_rssi_c,
1072 max_general->beacon_rssi_c);
1073 pos += scnprintf(buf + pos, bufsz - pos,
1074 fmt_table, "beacon_energy_a:",
1075 le32_to_cpu(general->beacon_energy_a),
1076 accum_general->beacon_energy_a,
1077 delta_general->beacon_energy_a,
1078 max_general->beacon_energy_a);
1079 pos += scnprintf(buf + pos, bufsz - pos,
1080 fmt_table, "beacon_energy_b:",
1081 le32_to_cpu(general->beacon_energy_b),
1082 accum_general->beacon_energy_b,
1083 delta_general->beacon_energy_b,
1084 max_general->beacon_energy_b);
1085 pos += scnprintf(buf + pos, bufsz - pos,
1086 fmt_table, "beacon_energy_c:",
1087 le32_to_cpu(general->beacon_energy_c),
1088 accum_general->beacon_energy_c,
1089 delta_general->beacon_energy_c,
1090 max_general->beacon_energy_c);
1091
1092 pos += scnprintf(buf + pos, bufsz - pos,
1093 fmt_header, "Statistics_Rx - OFDM_HT:");
1094 pos += scnprintf(buf + pos, bufsz - pos,
1095 fmt_table, "plcp_err:",
1096 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1097 delta_ht->plcp_err, max_ht->plcp_err);
1098 pos += scnprintf(buf + pos, bufsz - pos,
1099 fmt_table, "overrun_err:",
1100 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1101 delta_ht->overrun_err, max_ht->overrun_err);
1102 pos += scnprintf(buf + pos, bufsz - pos,
1103 fmt_table, "early_overrun_err:",
1104 le32_to_cpu(ht->early_overrun_err),
1105 accum_ht->early_overrun_err,
1106 delta_ht->early_overrun_err,
1107 max_ht->early_overrun_err);
1108 pos += scnprintf(buf + pos, bufsz - pos,
1109 fmt_table, "crc32_good:",
1110 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1111 delta_ht->crc32_good, max_ht->crc32_good);
1112 pos += scnprintf(buf + pos, bufsz - pos,
1113 fmt_table, "crc32_err:",
1114 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1115 delta_ht->crc32_err, max_ht->crc32_err);
1116 pos += scnprintf(buf + pos, bufsz - pos,
1117 fmt_table, "mh_format_err:",
1118 le32_to_cpu(ht->mh_format_err),
1119 accum_ht->mh_format_err,
1120 delta_ht->mh_format_err, max_ht->mh_format_err);
1121 pos += scnprintf(buf + pos, bufsz - pos,
1122 fmt_table, "agg_crc32_good:",
1123 le32_to_cpu(ht->agg_crc32_good),
1124 accum_ht->agg_crc32_good,
1125 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1126 pos += scnprintf(buf + pos, bufsz - pos,
1127 fmt_table, "agg_mpdu_cnt:",
1128 le32_to_cpu(ht->agg_mpdu_cnt),
1129 accum_ht->agg_mpdu_cnt,
1130 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1131 pos += scnprintf(buf + pos, bufsz - pos,
1132 fmt_table, "agg_cnt:",
1133 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1134 delta_ht->agg_cnt, max_ht->agg_cnt);
1135 pos += scnprintf(buf + pos, bufsz - pos,
1136 fmt_table, "unsupport_mcs:",
1137 le32_to_cpu(ht->unsupport_mcs),
1138 accum_ht->unsupport_mcs,
1139 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1140
1141 spin_unlock_bh(&priv->statistics.lock);
1142
1143 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1144 kfree(buf);
1145 return ret;
1146 }
1147
iwl_dbgfs_ucode_tx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1148 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1149 char __user *user_buf,
1150 size_t count, loff_t *ppos)
1151 {
1152 struct iwl_priv *priv = file->private_data;
1153 int pos = 0;
1154 char *buf;
1155 int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1156 ssize_t ret;
1157 struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1158
1159 if (!iwl_is_alive(priv))
1160 return -EAGAIN;
1161
1162 buf = kzalloc(bufsz, GFP_KERNEL);
1163 if (!buf)
1164 return -ENOMEM;
1165
1166 /* the statistic information display here is based on
1167 * the last statistics notification from uCode
1168 * might not reflect the current uCode activity
1169 */
1170 spin_lock_bh(&priv->statistics.lock);
1171
1172 tx = &priv->statistics.tx;
1173 accum_tx = &priv->accum_stats.tx;
1174 delta_tx = &priv->delta_stats.tx;
1175 max_tx = &priv->max_delta_stats.tx;
1176
1177 pos += iwl_statistics_flag(priv, buf, bufsz);
1178 pos += scnprintf(buf + pos, bufsz - pos,
1179 fmt_header, "Statistics_Tx:");
1180 pos += scnprintf(buf + pos, bufsz - pos,
1181 fmt_table, "preamble:",
1182 le32_to_cpu(tx->preamble_cnt),
1183 accum_tx->preamble_cnt,
1184 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1185 pos += scnprintf(buf + pos, bufsz - pos,
1186 fmt_table, "rx_detected_cnt:",
1187 le32_to_cpu(tx->rx_detected_cnt),
1188 accum_tx->rx_detected_cnt,
1189 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1190 pos += scnprintf(buf + pos, bufsz - pos,
1191 fmt_table, "bt_prio_defer_cnt:",
1192 le32_to_cpu(tx->bt_prio_defer_cnt),
1193 accum_tx->bt_prio_defer_cnt,
1194 delta_tx->bt_prio_defer_cnt,
1195 max_tx->bt_prio_defer_cnt);
1196 pos += scnprintf(buf + pos, bufsz - pos,
1197 fmt_table, "bt_prio_kill_cnt:",
1198 le32_to_cpu(tx->bt_prio_kill_cnt),
1199 accum_tx->bt_prio_kill_cnt,
1200 delta_tx->bt_prio_kill_cnt,
1201 max_tx->bt_prio_kill_cnt);
1202 pos += scnprintf(buf + pos, bufsz - pos,
1203 fmt_table, "few_bytes_cnt:",
1204 le32_to_cpu(tx->few_bytes_cnt),
1205 accum_tx->few_bytes_cnt,
1206 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1207 pos += scnprintf(buf + pos, bufsz - pos,
1208 fmt_table, "cts_timeout:",
1209 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1210 delta_tx->cts_timeout, max_tx->cts_timeout);
1211 pos += scnprintf(buf + pos, bufsz - pos,
1212 fmt_table, "ack_timeout:",
1213 le32_to_cpu(tx->ack_timeout),
1214 accum_tx->ack_timeout,
1215 delta_tx->ack_timeout, max_tx->ack_timeout);
1216 pos += scnprintf(buf + pos, bufsz - pos,
1217 fmt_table, "expected_ack_cnt:",
1218 le32_to_cpu(tx->expected_ack_cnt),
1219 accum_tx->expected_ack_cnt,
1220 delta_tx->expected_ack_cnt,
1221 max_tx->expected_ack_cnt);
1222 pos += scnprintf(buf + pos, bufsz - pos,
1223 fmt_table, "actual_ack_cnt:",
1224 le32_to_cpu(tx->actual_ack_cnt),
1225 accum_tx->actual_ack_cnt,
1226 delta_tx->actual_ack_cnt,
1227 max_tx->actual_ack_cnt);
1228 pos += scnprintf(buf + pos, bufsz - pos,
1229 fmt_table, "dump_msdu_cnt:",
1230 le32_to_cpu(tx->dump_msdu_cnt),
1231 accum_tx->dump_msdu_cnt,
1232 delta_tx->dump_msdu_cnt,
1233 max_tx->dump_msdu_cnt);
1234 pos += scnprintf(buf + pos, bufsz - pos,
1235 fmt_table, "abort_nxt_frame_mismatch:",
1236 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1237 accum_tx->burst_abort_next_frame_mismatch_cnt,
1238 delta_tx->burst_abort_next_frame_mismatch_cnt,
1239 max_tx->burst_abort_next_frame_mismatch_cnt);
1240 pos += scnprintf(buf + pos, bufsz - pos,
1241 fmt_table, "abort_missing_nxt_frame:",
1242 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1243 accum_tx->burst_abort_missing_next_frame_cnt,
1244 delta_tx->burst_abort_missing_next_frame_cnt,
1245 max_tx->burst_abort_missing_next_frame_cnt);
1246 pos += scnprintf(buf + pos, bufsz - pos,
1247 fmt_table, "cts_timeout_collision:",
1248 le32_to_cpu(tx->cts_timeout_collision),
1249 accum_tx->cts_timeout_collision,
1250 delta_tx->cts_timeout_collision,
1251 max_tx->cts_timeout_collision);
1252 pos += scnprintf(buf + pos, bufsz - pos,
1253 fmt_table, "ack_ba_timeout_collision:",
1254 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1255 accum_tx->ack_or_ba_timeout_collision,
1256 delta_tx->ack_or_ba_timeout_collision,
1257 max_tx->ack_or_ba_timeout_collision);
1258 pos += scnprintf(buf + pos, bufsz - pos,
1259 fmt_table, "agg ba_timeout:",
1260 le32_to_cpu(tx->agg.ba_timeout),
1261 accum_tx->agg.ba_timeout,
1262 delta_tx->agg.ba_timeout,
1263 max_tx->agg.ba_timeout);
1264 pos += scnprintf(buf + pos, bufsz - pos,
1265 fmt_table, "agg ba_resched_frames:",
1266 le32_to_cpu(tx->agg.ba_reschedule_frames),
1267 accum_tx->agg.ba_reschedule_frames,
1268 delta_tx->agg.ba_reschedule_frames,
1269 max_tx->agg.ba_reschedule_frames);
1270 pos += scnprintf(buf + pos, bufsz - pos,
1271 fmt_table, "agg scd_query_agg_frame:",
1272 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1273 accum_tx->agg.scd_query_agg_frame_cnt,
1274 delta_tx->agg.scd_query_agg_frame_cnt,
1275 max_tx->agg.scd_query_agg_frame_cnt);
1276 pos += scnprintf(buf + pos, bufsz - pos,
1277 fmt_table, "agg scd_query_no_agg:",
1278 le32_to_cpu(tx->agg.scd_query_no_agg),
1279 accum_tx->agg.scd_query_no_agg,
1280 delta_tx->agg.scd_query_no_agg,
1281 max_tx->agg.scd_query_no_agg);
1282 pos += scnprintf(buf + pos, bufsz - pos,
1283 fmt_table, "agg scd_query_agg:",
1284 le32_to_cpu(tx->agg.scd_query_agg),
1285 accum_tx->agg.scd_query_agg,
1286 delta_tx->agg.scd_query_agg,
1287 max_tx->agg.scd_query_agg);
1288 pos += scnprintf(buf + pos, bufsz - pos,
1289 fmt_table, "agg scd_query_mismatch:",
1290 le32_to_cpu(tx->agg.scd_query_mismatch),
1291 accum_tx->agg.scd_query_mismatch,
1292 delta_tx->agg.scd_query_mismatch,
1293 max_tx->agg.scd_query_mismatch);
1294 pos += scnprintf(buf + pos, bufsz - pos,
1295 fmt_table, "agg frame_not_ready:",
1296 le32_to_cpu(tx->agg.frame_not_ready),
1297 accum_tx->agg.frame_not_ready,
1298 delta_tx->agg.frame_not_ready,
1299 max_tx->agg.frame_not_ready);
1300 pos += scnprintf(buf + pos, bufsz - pos,
1301 fmt_table, "agg underrun:",
1302 le32_to_cpu(tx->agg.underrun),
1303 accum_tx->agg.underrun,
1304 delta_tx->agg.underrun, max_tx->agg.underrun);
1305 pos += scnprintf(buf + pos, bufsz - pos,
1306 fmt_table, "agg bt_prio_kill:",
1307 le32_to_cpu(tx->agg.bt_prio_kill),
1308 accum_tx->agg.bt_prio_kill,
1309 delta_tx->agg.bt_prio_kill,
1310 max_tx->agg.bt_prio_kill);
1311 pos += scnprintf(buf + pos, bufsz - pos,
1312 fmt_table, "agg rx_ba_rsp_cnt:",
1313 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1314 accum_tx->agg.rx_ba_rsp_cnt,
1315 delta_tx->agg.rx_ba_rsp_cnt,
1316 max_tx->agg.rx_ba_rsp_cnt);
1317
1318 if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1319 pos += scnprintf(buf + pos, bufsz - pos,
1320 "tx power: (1/2 dB step)\n");
1321 if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1322 tx->tx_power.ant_a)
1323 pos += scnprintf(buf + pos, bufsz - pos,
1324 fmt_hex, "antenna A:",
1325 tx->tx_power.ant_a);
1326 if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1327 tx->tx_power.ant_b)
1328 pos += scnprintf(buf + pos, bufsz - pos,
1329 fmt_hex, "antenna B:",
1330 tx->tx_power.ant_b);
1331 if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1332 tx->tx_power.ant_c)
1333 pos += scnprintf(buf + pos, bufsz - pos,
1334 fmt_hex, "antenna C:",
1335 tx->tx_power.ant_c);
1336 }
1337
1338 spin_unlock_bh(&priv->statistics.lock);
1339
1340 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1341 kfree(buf);
1342 return ret;
1343 }
1344
iwl_dbgfs_ucode_general_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1345 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1346 char __user *user_buf,
1347 size_t count, loff_t *ppos)
1348 {
1349 struct iwl_priv *priv = file->private_data;
1350 int pos = 0;
1351 char *buf;
1352 int bufsz = sizeof(struct statistics_general) * 10 + 300;
1353 ssize_t ret;
1354 struct statistics_general_common *general, *accum_general;
1355 struct statistics_general_common *delta_general, *max_general;
1356 struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1357 struct statistics_div *div, *accum_div, *delta_div, *max_div;
1358
1359 if (!iwl_is_alive(priv))
1360 return -EAGAIN;
1361
1362 buf = kzalloc(bufsz, GFP_KERNEL);
1363 if (!buf)
1364 return -ENOMEM;
1365
1366 /* the statistic information display here is based on
1367 * the last statistics notification from uCode
1368 * might not reflect the current uCode activity
1369 */
1370
1371 spin_lock_bh(&priv->statistics.lock);
1372
1373 general = &priv->statistics.common;
1374 dbg = &priv->statistics.common.dbg;
1375 div = &priv->statistics.common.div;
1376 accum_general = &priv->accum_stats.common;
1377 accum_dbg = &priv->accum_stats.common.dbg;
1378 accum_div = &priv->accum_stats.common.div;
1379 delta_general = &priv->delta_stats.common;
1380 max_general = &priv->max_delta_stats.common;
1381 delta_dbg = &priv->delta_stats.common.dbg;
1382 max_dbg = &priv->max_delta_stats.common.dbg;
1383 delta_div = &priv->delta_stats.common.div;
1384 max_div = &priv->max_delta_stats.common.div;
1385
1386 pos += iwl_statistics_flag(priv, buf, bufsz);
1387 pos += scnprintf(buf + pos, bufsz - pos,
1388 fmt_header, "Statistics_General:");
1389 pos += scnprintf(buf + pos, bufsz - pos,
1390 fmt_value, "temperature:",
1391 le32_to_cpu(general->temperature));
1392 pos += scnprintf(buf + pos, bufsz - pos,
1393 fmt_value, "temperature_m:",
1394 le32_to_cpu(general->temperature_m));
1395 pos += scnprintf(buf + pos, bufsz - pos,
1396 fmt_value, "ttl_timestamp:",
1397 le32_to_cpu(general->ttl_timestamp));
1398 pos += scnprintf(buf + pos, bufsz - pos,
1399 fmt_table, "burst_check:",
1400 le32_to_cpu(dbg->burst_check),
1401 accum_dbg->burst_check,
1402 delta_dbg->burst_check, max_dbg->burst_check);
1403 pos += scnprintf(buf + pos, bufsz - pos,
1404 fmt_table, "burst_count:",
1405 le32_to_cpu(dbg->burst_count),
1406 accum_dbg->burst_count,
1407 delta_dbg->burst_count, max_dbg->burst_count);
1408 pos += scnprintf(buf + pos, bufsz - pos,
1409 fmt_table, "wait_for_silence_timeout_count:",
1410 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1411 accum_dbg->wait_for_silence_timeout_cnt,
1412 delta_dbg->wait_for_silence_timeout_cnt,
1413 max_dbg->wait_for_silence_timeout_cnt);
1414 pos += scnprintf(buf + pos, bufsz - pos,
1415 fmt_table, "sleep_time:",
1416 le32_to_cpu(general->sleep_time),
1417 accum_general->sleep_time,
1418 delta_general->sleep_time, max_general->sleep_time);
1419 pos += scnprintf(buf + pos, bufsz - pos,
1420 fmt_table, "slots_out:",
1421 le32_to_cpu(general->slots_out),
1422 accum_general->slots_out,
1423 delta_general->slots_out, max_general->slots_out);
1424 pos += scnprintf(buf + pos, bufsz - pos,
1425 fmt_table, "slots_idle:",
1426 le32_to_cpu(general->slots_idle),
1427 accum_general->slots_idle,
1428 delta_general->slots_idle, max_general->slots_idle);
1429 pos += scnprintf(buf + pos, bufsz - pos,
1430 fmt_table, "tx_on_a:",
1431 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1432 delta_div->tx_on_a, max_div->tx_on_a);
1433 pos += scnprintf(buf + pos, bufsz - pos,
1434 fmt_table, "tx_on_b:",
1435 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1436 delta_div->tx_on_b, max_div->tx_on_b);
1437 pos += scnprintf(buf + pos, bufsz - pos,
1438 fmt_table, "exec_time:",
1439 le32_to_cpu(div->exec_time), accum_div->exec_time,
1440 delta_div->exec_time, max_div->exec_time);
1441 pos += scnprintf(buf + pos, bufsz - pos,
1442 fmt_table, "probe_time:",
1443 le32_to_cpu(div->probe_time), accum_div->probe_time,
1444 delta_div->probe_time, max_div->probe_time);
1445 pos += scnprintf(buf + pos, bufsz - pos,
1446 fmt_table, "rx_enable_counter:",
1447 le32_to_cpu(general->rx_enable_counter),
1448 accum_general->rx_enable_counter,
1449 delta_general->rx_enable_counter,
1450 max_general->rx_enable_counter);
1451 pos += scnprintf(buf + pos, bufsz - pos,
1452 fmt_table, "num_of_sos_states:",
1453 le32_to_cpu(general->num_of_sos_states),
1454 accum_general->num_of_sos_states,
1455 delta_general->num_of_sos_states,
1456 max_general->num_of_sos_states);
1457
1458 spin_unlock_bh(&priv->statistics.lock);
1459
1460 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1461 kfree(buf);
1462 return ret;
1463 }
1464
iwl_dbgfs_ucode_bt_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1465 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1466 char __user *user_buf,
1467 size_t count, loff_t *ppos)
1468 {
1469 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1470 int pos = 0;
1471 char *buf;
1472 int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1473 ssize_t ret;
1474 struct statistics_bt_activity *bt, *accum_bt;
1475
1476 if (!iwl_is_alive(priv))
1477 return -EAGAIN;
1478
1479 if (!priv->bt_enable_flag)
1480 return -EINVAL;
1481
1482 /* make request to uCode to retrieve statistics information */
1483 mutex_lock(&priv->mutex);
1484 ret = iwl_send_statistics_request(priv, 0, false);
1485 mutex_unlock(&priv->mutex);
1486
1487 if (ret)
1488 return -EAGAIN;
1489 buf = kzalloc(bufsz, GFP_KERNEL);
1490 if (!buf)
1491 return -ENOMEM;
1492
1493 /*
1494 * the statistic information display here is based on
1495 * the last statistics notification from uCode
1496 * might not reflect the current uCode activity
1497 */
1498
1499 spin_lock_bh(&priv->statistics.lock);
1500
1501 bt = &priv->statistics.bt_activity;
1502 accum_bt = &priv->accum_stats.bt_activity;
1503
1504 pos += iwl_statistics_flag(priv, buf, bufsz);
1505 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1506 pos += scnprintf(buf + pos, bufsz - pos,
1507 "\t\t\tcurrent\t\t\taccumulative\n");
1508 pos += scnprintf(buf + pos, bufsz - pos,
1509 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1510 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1511 accum_bt->hi_priority_tx_req_cnt);
1512 pos += scnprintf(buf + pos, bufsz - pos,
1513 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1514 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1515 accum_bt->hi_priority_tx_denied_cnt);
1516 pos += scnprintf(buf + pos, bufsz - pos,
1517 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1518 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1519 accum_bt->lo_priority_tx_req_cnt);
1520 pos += scnprintf(buf + pos, bufsz - pos,
1521 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1522 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1523 accum_bt->lo_priority_tx_denied_cnt);
1524 pos += scnprintf(buf + pos, bufsz - pos,
1525 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1526 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1527 accum_bt->hi_priority_rx_req_cnt);
1528 pos += scnprintf(buf + pos, bufsz - pos,
1529 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1530 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1531 accum_bt->hi_priority_rx_denied_cnt);
1532 pos += scnprintf(buf + pos, bufsz - pos,
1533 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1534 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1535 accum_bt->lo_priority_rx_req_cnt);
1536 pos += scnprintf(buf + pos, bufsz - pos,
1537 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1538 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1539 accum_bt->lo_priority_rx_denied_cnt);
1540
1541 pos += scnprintf(buf + pos, bufsz - pos,
1542 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1543 le32_to_cpu(priv->statistics.num_bt_kills),
1544 priv->statistics.accum_num_bt_kills);
1545
1546 spin_unlock_bh(&priv->statistics.lock);
1547
1548 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1549 kfree(buf);
1550 return ret;
1551 }
1552
iwl_dbgfs_reply_tx_error_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1553 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1554 char __user *user_buf,
1555 size_t count, loff_t *ppos)
1556 {
1557 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1558 int pos = 0;
1559 char *buf;
1560 int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1561 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1562 ssize_t ret;
1563
1564 if (!iwl_is_alive(priv))
1565 return -EAGAIN;
1566
1567 buf = kzalloc(bufsz, GFP_KERNEL);
1568 if (!buf)
1569 return -ENOMEM;
1570
1571 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1572 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1573 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1574 priv->reply_tx_stats.pp_delay);
1575 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1577 priv->reply_tx_stats.pp_few_bytes);
1578 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1580 priv->reply_tx_stats.pp_bt_prio);
1581 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1582 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1583 priv->reply_tx_stats.pp_quiet_period);
1584 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1585 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1586 priv->reply_tx_stats.pp_calc_ttak);
1587 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1588 iwl_get_tx_fail_reason(
1589 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1590 priv->reply_tx_stats.int_crossed_retry);
1591 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1592 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1593 priv->reply_tx_stats.short_limit);
1594 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1595 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1596 priv->reply_tx_stats.long_limit);
1597 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1598 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1599 priv->reply_tx_stats.fifo_underrun);
1600 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1601 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1602 priv->reply_tx_stats.drain_flow);
1603 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1604 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1605 priv->reply_tx_stats.rfkill_flush);
1606 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1607 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1608 priv->reply_tx_stats.life_expire);
1609 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1610 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1611 priv->reply_tx_stats.dest_ps);
1612 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1613 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1614 priv->reply_tx_stats.host_abort);
1615 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1616 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1617 priv->reply_tx_stats.pp_delay);
1618 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1619 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1620 priv->reply_tx_stats.sta_invalid);
1621 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1622 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1623 priv->reply_tx_stats.frag_drop);
1624 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1625 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1626 priv->reply_tx_stats.tid_disable);
1627 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1628 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1629 priv->reply_tx_stats.fifo_flush);
1630 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1631 iwl_get_tx_fail_reason(
1632 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1633 priv->reply_tx_stats.insuff_cf_poll);
1634 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1635 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1636 priv->reply_tx_stats.fail_hw_drop);
1637 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1638 iwl_get_tx_fail_reason(
1639 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1640 priv->reply_tx_stats.sta_color_mismatch);
1641 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1642 priv->reply_tx_stats.unknown);
1643
1644 pos += scnprintf(buf + pos, bufsz - pos,
1645 "\nStatistics_Agg_TX_Error:\n");
1646
1647 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1648 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1649 priv->reply_agg_tx_stats.underrun);
1650 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1651 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1652 priv->reply_agg_tx_stats.bt_prio);
1653 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1654 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1655 priv->reply_agg_tx_stats.few_bytes);
1656 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1657 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1658 priv->reply_agg_tx_stats.abort);
1659 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1660 iwl_get_agg_tx_fail_reason(
1661 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1662 priv->reply_agg_tx_stats.last_sent_ttl);
1663 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1664 iwl_get_agg_tx_fail_reason(
1665 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1666 priv->reply_agg_tx_stats.last_sent_try);
1667 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1668 iwl_get_agg_tx_fail_reason(
1669 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1670 priv->reply_agg_tx_stats.last_sent_bt_kill);
1671 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1672 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1673 priv->reply_agg_tx_stats.scd_query);
1674 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1675 iwl_get_agg_tx_fail_reason(
1676 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1677 priv->reply_agg_tx_stats.bad_crc32);
1678 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1679 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1680 priv->reply_agg_tx_stats.response);
1681 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1682 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1683 priv->reply_agg_tx_stats.dump_tx);
1684 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1685 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1686 priv->reply_agg_tx_stats.delay_tx);
1687 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1688 priv->reply_agg_tx_stats.unknown);
1689
1690 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1691 kfree(buf);
1692 return ret;
1693 }
1694
iwl_dbgfs_sensitivity_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1695 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1696 char __user *user_buf,
1697 size_t count, loff_t *ppos) {
1698
1699 struct iwl_priv *priv = file->private_data;
1700 int pos = 0;
1701 int cnt = 0;
1702 char *buf;
1703 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1704 ssize_t ret;
1705 struct iwl_sensitivity_data *data;
1706
1707 data = &priv->sensitivity_data;
1708 buf = kzalloc(bufsz, GFP_KERNEL);
1709 if (!buf)
1710 return -ENOMEM;
1711
1712 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1713 data->auto_corr_ofdm);
1714 pos += scnprintf(buf + pos, bufsz - pos,
1715 "auto_corr_ofdm_mrc:\t\t %u\n",
1716 data->auto_corr_ofdm_mrc);
1717 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1718 data->auto_corr_ofdm_x1);
1719 pos += scnprintf(buf + pos, bufsz - pos,
1720 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1721 data->auto_corr_ofdm_mrc_x1);
1722 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1723 data->auto_corr_cck);
1724 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1725 data->auto_corr_cck_mrc);
1726 pos += scnprintf(buf + pos, bufsz - pos,
1727 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1728 data->last_bad_plcp_cnt_ofdm);
1729 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1730 data->last_fa_cnt_ofdm);
1731 pos += scnprintf(buf + pos, bufsz - pos,
1732 "last_bad_plcp_cnt_cck:\t\t %u\n",
1733 data->last_bad_plcp_cnt_cck);
1734 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1735 data->last_fa_cnt_cck);
1736 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1737 data->nrg_curr_state);
1738 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1739 data->nrg_prev_state);
1740 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1741 for (cnt = 0; cnt < 10; cnt++) {
1742 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1743 data->nrg_value[cnt]);
1744 }
1745 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1746 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1747 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1748 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1749 data->nrg_silence_rssi[cnt]);
1750 }
1751 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1752 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1753 data->nrg_silence_ref);
1754 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1755 data->nrg_energy_idx);
1756 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1757 data->nrg_silence_idx);
1758 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1759 data->nrg_th_cck);
1760 pos += scnprintf(buf + pos, bufsz - pos,
1761 "nrg_auto_corr_silence_diff:\t %u\n",
1762 data->nrg_auto_corr_silence_diff);
1763 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1764 data->num_in_cck_no_fa);
1765 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1766 data->nrg_th_ofdm);
1767
1768 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1769 kfree(buf);
1770 return ret;
1771 }
1772
1773
iwl_dbgfs_chain_noise_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1774 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1775 char __user *user_buf,
1776 size_t count, loff_t *ppos) {
1777
1778 struct iwl_priv *priv = file->private_data;
1779 int pos = 0;
1780 int cnt = 0;
1781 char *buf;
1782 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1783 ssize_t ret;
1784 struct iwl_chain_noise_data *data;
1785
1786 data = &priv->chain_noise_data;
1787 buf = kzalloc(bufsz, GFP_KERNEL);
1788 if (!buf)
1789 return -ENOMEM;
1790
1791 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1792 data->active_chains);
1793 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1794 data->chain_noise_a);
1795 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1796 data->chain_noise_b);
1797 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1798 data->chain_noise_c);
1799 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1800 data->chain_signal_a);
1801 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1802 data->chain_signal_b);
1803 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1804 data->chain_signal_c);
1805 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1806 data->beacon_count);
1807
1808 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1809 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1810 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1811 data->disconn_array[cnt]);
1812 }
1813 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1814 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1815 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1816 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1817 data->delta_gain_code[cnt]);
1818 }
1819 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1820 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1821 data->radio_write);
1822 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1823 data->state);
1824
1825 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1826 kfree(buf);
1827 return ret;
1828 }
1829
iwl_dbgfs_power_save_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1830 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1831 char __user *user_buf,
1832 size_t count, loff_t *ppos)
1833 {
1834 struct iwl_priv *priv = file->private_data;
1835 char buf[60];
1836 int pos = 0;
1837 const size_t bufsz = sizeof(buf);
1838 u32 pwrsave_status;
1839
1840 pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1841 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1842
1843 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1844 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1845 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1846 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1847 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1848 "error");
1849
1850 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1851 }
1852
iwl_dbgfs_clear_ucode_statistics_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1853 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1854 const char __user *user_buf,
1855 size_t count, loff_t *ppos)
1856 {
1857 struct iwl_priv *priv = file->private_data;
1858 char buf[8];
1859 int buf_size;
1860 int clear;
1861
1862 memset(buf, 0, sizeof(buf));
1863 buf_size = min(count, sizeof(buf) - 1);
1864 if (copy_from_user(buf, user_buf, buf_size))
1865 return -EFAULT;
1866 if (sscanf(buf, "%d", &clear) != 1)
1867 return -EFAULT;
1868
1869 /* make request to uCode to retrieve statistics information */
1870 mutex_lock(&priv->mutex);
1871 iwl_send_statistics_request(priv, 0, true);
1872 mutex_unlock(&priv->mutex);
1873
1874 return count;
1875 }
1876
iwl_dbgfs_ucode_tracing_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1877 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1878 char __user *user_buf,
1879 size_t count, loff_t *ppos) {
1880
1881 struct iwl_priv *priv = file->private_data;
1882 int pos = 0;
1883 char buf[128];
1884 const size_t bufsz = sizeof(buf);
1885
1886 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1887 priv->event_log.ucode_trace ? "On" : "Off");
1888 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1889 priv->event_log.non_wraps_count);
1890 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1891 priv->event_log.wraps_once_count);
1892 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1893 priv->event_log.wraps_more_count);
1894
1895 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1896 }
1897
iwl_dbgfs_ucode_tracing_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1898 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1899 const char __user *user_buf,
1900 size_t count, loff_t *ppos)
1901 {
1902 struct iwl_priv *priv = file->private_data;
1903 char buf[8];
1904 int buf_size;
1905 int trace;
1906
1907 memset(buf, 0, sizeof(buf));
1908 buf_size = min(count, sizeof(buf) - 1);
1909 if (copy_from_user(buf, user_buf, buf_size))
1910 return -EFAULT;
1911 if (sscanf(buf, "%d", &trace) != 1)
1912 return -EFAULT;
1913
1914 if (trace) {
1915 priv->event_log.ucode_trace = true;
1916 if (iwl_is_alive(priv)) {
1917 /* start collecting data now */
1918 mod_timer(&priv->ucode_trace, jiffies);
1919 }
1920 } else {
1921 priv->event_log.ucode_trace = false;
1922 del_timer_sync(&priv->ucode_trace);
1923 }
1924
1925 return count;
1926 }
1927
iwl_dbgfs_rxon_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1928 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1929 char __user *user_buf,
1930 size_t count, loff_t *ppos) {
1931
1932 struct iwl_priv *priv = file->private_data;
1933 int len = 0;
1934 char buf[20];
1935
1936 len = sprintf(buf, "0x%04X\n",
1937 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1938 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1939 }
1940
iwl_dbgfs_rxon_filter_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1941 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1942 char __user *user_buf,
1943 size_t count, loff_t *ppos) {
1944
1945 struct iwl_priv *priv = file->private_data;
1946 int len = 0;
1947 char buf[20];
1948
1949 len = sprintf(buf, "0x%04X\n",
1950 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1951 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1952 }
1953
iwl_dbgfs_missed_beacon_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1954 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1955 char __user *user_buf,
1956 size_t count, loff_t *ppos) {
1957
1958 struct iwl_priv *priv = file->private_data;
1959 int pos = 0;
1960 char buf[12];
1961 const size_t bufsz = sizeof(buf);
1962
1963 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1964 priv->missed_beacon_threshold);
1965
1966 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1967 }
1968
iwl_dbgfs_missed_beacon_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1969 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1970 const char __user *user_buf,
1971 size_t count, loff_t *ppos)
1972 {
1973 struct iwl_priv *priv = file->private_data;
1974 char buf[8];
1975 int buf_size;
1976 int missed;
1977
1978 memset(buf, 0, sizeof(buf));
1979 buf_size = min(count, sizeof(buf) - 1);
1980 if (copy_from_user(buf, user_buf, buf_size))
1981 return -EFAULT;
1982 if (sscanf(buf, "%d", &missed) != 1)
1983 return -EINVAL;
1984
1985 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1986 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1987 priv->missed_beacon_threshold =
1988 IWL_MISSED_BEACON_THRESHOLD_DEF;
1989 else
1990 priv->missed_beacon_threshold = missed;
1991
1992 return count;
1993 }
1994
iwl_dbgfs_plcp_delta_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1995 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1996 char __user *user_buf,
1997 size_t count, loff_t *ppos) {
1998
1999 struct iwl_priv *priv = file->private_data;
2000 int pos = 0;
2001 char buf[12];
2002 const size_t bufsz = sizeof(buf);
2003
2004 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2005 priv->plcp_delta_threshold);
2006
2007 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008 }
2009
iwl_dbgfs_plcp_delta_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2010 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2011 const char __user *user_buf,
2012 size_t count, loff_t *ppos) {
2013
2014 struct iwl_priv *priv = file->private_data;
2015 char buf[8];
2016 int buf_size;
2017 int plcp;
2018
2019 memset(buf, 0, sizeof(buf));
2020 buf_size = min(count, sizeof(buf) - 1);
2021 if (copy_from_user(buf, user_buf, buf_size))
2022 return -EFAULT;
2023 if (sscanf(buf, "%d", &plcp) != 1)
2024 return -EINVAL;
2025 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2026 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2027 priv->plcp_delta_threshold =
2028 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2029 else
2030 priv->plcp_delta_threshold = plcp;
2031 return count;
2032 }
2033
iwl_dbgfs_rf_reset_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2034 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
2035 char __user *user_buf,
2036 size_t count, loff_t *ppos)
2037 {
2038 struct iwl_priv *priv = file->private_data;
2039 int pos = 0;
2040 char buf[300];
2041 const size_t bufsz = sizeof(buf);
2042 struct iwl_rf_reset *rf_reset = &priv->rf_reset;
2043
2044 pos += scnprintf(buf + pos, bufsz - pos,
2045 "RF reset statistics\n");
2046 pos += scnprintf(buf + pos, bufsz - pos,
2047 "\tnumber of reset request: %d\n",
2048 rf_reset->reset_request_count);
2049 pos += scnprintf(buf + pos, bufsz - pos,
2050 "\tnumber of reset request success: %d\n",
2051 rf_reset->reset_success_count);
2052 pos += scnprintf(buf + pos, bufsz - pos,
2053 "\tnumber of reset request reject: %d\n",
2054 rf_reset->reset_reject_count);
2055
2056 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057 }
2058
iwl_dbgfs_rf_reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2059 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2060 const char __user *user_buf,
2061 size_t count, loff_t *ppos) {
2062
2063 struct iwl_priv *priv = file->private_data;
2064 int ret;
2065
2066 ret = iwl_force_rf_reset(priv, true);
2067 return ret ? ret : count;
2068 }
2069
iwl_dbgfs_txfifo_flush_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2070 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2071 const char __user *user_buf,
2072 size_t count, loff_t *ppos) {
2073
2074 struct iwl_priv *priv = file->private_data;
2075 char buf[8];
2076 int buf_size;
2077 int flush;
2078
2079 memset(buf, 0, sizeof(buf));
2080 buf_size = min(count, sizeof(buf) - 1);
2081 if (copy_from_user(buf, user_buf, buf_size))
2082 return -EFAULT;
2083 if (sscanf(buf, "%d", &flush) != 1)
2084 return -EINVAL;
2085
2086 if (iwl_is_rfkill(priv))
2087 return -EFAULT;
2088
2089 iwlagn_dev_txfifo_flush(priv);
2090
2091 return count;
2092 }
2093
iwl_dbgfs_bt_traffic_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2094 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2095 char __user *user_buf,
2096 size_t count, loff_t *ppos) {
2097
2098 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2099 int pos = 0;
2100 char buf[200];
2101 const size_t bufsz = sizeof(buf);
2102
2103 if (!priv->bt_enable_flag) {
2104 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2105 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2106 }
2107 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2108 priv->bt_enable_flag);
2109 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2110 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2111 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2112 "last traffic notif: %d\n",
2113 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2114 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2115 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2116 priv->bt_ch_announce, priv->kill_ack_mask,
2117 priv->kill_cts_mask);
2118
2119 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2120 switch (priv->bt_traffic_load) {
2121 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2122 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2123 break;
2124 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2125 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2126 break;
2127 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2128 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2129 break;
2130 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2131 default:
2132 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2133 break;
2134 }
2135
2136 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2137 }
2138
iwl_dbgfs_protection_mode_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2139 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2140 char __user *user_buf,
2141 size_t count, loff_t *ppos)
2142 {
2143 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2144
2145 int pos = 0;
2146 char buf[40];
2147 const size_t bufsz = sizeof(buf);
2148
2149 if (priv->cfg->ht_params)
2150 pos += scnprintf(buf + pos, bufsz - pos,
2151 "use %s for aggregation\n",
2152 (priv->hw_params.use_rts_for_aggregation) ?
2153 "rts/cts" : "cts-to-self");
2154 else
2155 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2156
2157 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2158 }
2159
iwl_dbgfs_protection_mode_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2160 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2161 const char __user *user_buf,
2162 size_t count, loff_t *ppos) {
2163
2164 struct iwl_priv *priv = file->private_data;
2165 char buf[8];
2166 int buf_size;
2167 int rts;
2168
2169 if (!priv->cfg->ht_params)
2170 return -EINVAL;
2171
2172 memset(buf, 0, sizeof(buf));
2173 buf_size = min(count, sizeof(buf) - 1);
2174 if (copy_from_user(buf, user_buf, buf_size))
2175 return -EFAULT;
2176 if (sscanf(buf, "%d", &rts) != 1)
2177 return -EINVAL;
2178 if (rts)
2179 priv->hw_params.use_rts_for_aggregation = true;
2180 else
2181 priv->hw_params.use_rts_for_aggregation = false;
2182 return count;
2183 }
2184
iwl_cmd_echo_test(struct iwl_priv * priv)2185 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2186 {
2187 int ret;
2188 struct iwl_host_cmd cmd = {
2189 .id = REPLY_ECHO,
2190 .len = { 0 },
2191 };
2192
2193 ret = iwl_dvm_send_cmd(priv, &cmd);
2194 if (ret)
2195 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2196 else
2197 IWL_DEBUG_INFO(priv, "echo testing pass\n");
2198 return ret;
2199 }
2200
iwl_dbgfs_echo_test_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2201 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2202 const char __user *user_buf,
2203 size_t count, loff_t *ppos)
2204 {
2205 struct iwl_priv *priv = file->private_data;
2206 char buf[8];
2207 int buf_size;
2208
2209 memset(buf, 0, sizeof(buf));
2210 buf_size = min(count, sizeof(buf) - 1);
2211 if (copy_from_user(buf, user_buf, buf_size))
2212 return -EFAULT;
2213
2214 iwl_cmd_echo_test(priv);
2215 return count;
2216 }
2217
2218 #ifdef CONFIG_IWLWIFI_DEBUG
iwl_dbgfs_log_event_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2219 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2220 char __user *user_buf,
2221 size_t count, loff_t *ppos)
2222 {
2223 struct iwl_priv *priv = file->private_data;
2224 char *buf = NULL;
2225 ssize_t ret;
2226
2227 ret = iwl_dump_nic_event_log(priv, true, &buf);
2228 if (ret > 0)
2229 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2230 kfree(buf);
2231 return ret;
2232 }
2233
iwl_dbgfs_log_event_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2234 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2235 const char __user *user_buf,
2236 size_t count, loff_t *ppos)
2237 {
2238 struct iwl_priv *priv = file->private_data;
2239 u32 event_log_flag;
2240 char buf[8];
2241 int buf_size;
2242
2243 /* check that the interface is up */
2244 if (!iwl_is_ready(priv))
2245 return -EAGAIN;
2246
2247 memset(buf, 0, sizeof(buf));
2248 buf_size = min(count, sizeof(buf) - 1);
2249 if (copy_from_user(buf, user_buf, buf_size))
2250 return -EFAULT;
2251 if (sscanf(buf, "%d", &event_log_flag) != 1)
2252 return -EFAULT;
2253 if (event_log_flag == 1)
2254 iwl_dump_nic_event_log(priv, true, NULL);
2255
2256 return count;
2257 }
2258 #endif
2259
iwl_dbgfs_calib_disabled_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2260 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2261 char __user *user_buf,
2262 size_t count, loff_t *ppos)
2263 {
2264 struct iwl_priv *priv = file->private_data;
2265 char buf[120];
2266 int pos = 0;
2267 const size_t bufsz = sizeof(buf);
2268
2269 pos += scnprintf(buf + pos, bufsz - pos,
2270 "Sensitivity calibrations %s\n",
2271 (priv->calib_disabled &
2272 IWL_SENSITIVITY_CALIB_DISABLED) ?
2273 "DISABLED" : "ENABLED");
2274 pos += scnprintf(buf + pos, bufsz - pos,
2275 "Chain noise calibrations %s\n",
2276 (priv->calib_disabled &
2277 IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2278 "DISABLED" : "ENABLED");
2279 pos += scnprintf(buf + pos, bufsz - pos,
2280 "Tx power calibrations %s\n",
2281 (priv->calib_disabled &
2282 IWL_TX_POWER_CALIB_DISABLED) ?
2283 "DISABLED" : "ENABLED");
2284
2285 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2286 }
2287
iwl_dbgfs_calib_disabled_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2288 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2289 const char __user *user_buf,
2290 size_t count, loff_t *ppos)
2291 {
2292 struct iwl_priv *priv = file->private_data;
2293 char buf[8];
2294 u32 calib_disabled;
2295 int buf_size;
2296
2297 memset(buf, 0, sizeof(buf));
2298 buf_size = min(count, sizeof(buf) - 1);
2299 if (copy_from_user(buf, user_buf, buf_size))
2300 return -EFAULT;
2301 if (sscanf(buf, "%x", &calib_disabled) != 1)
2302 return -EFAULT;
2303
2304 priv->calib_disabled = calib_disabled;
2305
2306 return count;
2307 }
2308
iwl_dbgfs_fw_restart_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2309 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2310 const char __user *user_buf,
2311 size_t count, loff_t *ppos)
2312 {
2313 struct iwl_priv *priv = file->private_data;
2314 bool restart_fw = iwlwifi_mod_params.restart_fw;
2315 int ret;
2316
2317 iwlwifi_mod_params.restart_fw = true;
2318
2319 mutex_lock(&priv->mutex);
2320
2321 /* take the return value to make compiler happy - it will fail anyway */
2322 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2323
2324 mutex_unlock(&priv->mutex);
2325
2326 iwlwifi_mod_params.restart_fw = restart_fw;
2327
2328 return count;
2329 }
2330
2331 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2332 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2333 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2334 DEBUGFS_READ_FILE_OPS(sensitivity);
2335 DEBUGFS_READ_FILE_OPS(chain_noise);
2336 DEBUGFS_READ_FILE_OPS(power_save_status);
2337 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2338 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2339 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2340 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2341 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2342 DEBUGFS_READ_FILE_OPS(rxon_flags);
2343 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2344 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2345 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2346 DEBUGFS_READ_FILE_OPS(bt_traffic);
2347 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2348 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2349 DEBUGFS_WRITE_FILE_OPS(echo_test);
2350 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2351 #ifdef CONFIG_IWLWIFI_DEBUG
2352 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2353 #endif
2354 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2355
2356 /*
2357 * Create the debugfs files and directories
2358 *
2359 */
iwl_dbgfs_register(struct iwl_priv * priv,struct dentry * dbgfs_dir)2360 int iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2361 {
2362 struct dentry *dir_data, *dir_rf, *dir_debug;
2363
2364 priv->debugfs_dir = dbgfs_dir;
2365
2366 dir_data = debugfs_create_dir("data", dbgfs_dir);
2367 if (!dir_data)
2368 goto err;
2369 dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2370 if (!dir_rf)
2371 goto err;
2372 dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2373 if (!dir_debug)
2374 goto err;
2375
2376 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2377 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2378 DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2379 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2380 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2381 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2382 DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2383 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2384 DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2385 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2386 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2387 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2388 DEBUGFS_ADD_FILE(temperature, dir_data, S_IRUSR);
2389
2390 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2391 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2392 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2393 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2394 DEBUGFS_ADD_FILE(rf_reset, dir_debug, S_IWUSR | S_IRUSR);
2395 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2396 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2397 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2398 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2399 DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2400 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2401 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2402 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2403 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2404 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2405 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2406 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2407 DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR);
2408 DEBUGFS_ADD_FILE(fw_restart, dir_debug, S_IWUSR);
2409 #ifdef CONFIG_IWLWIFI_DEBUG
2410 DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR);
2411 #endif
2412
2413 if (iwl_advanced_bt_coexist(priv))
2414 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2415
2416 /* Calibrations disabled/enabled status*/
2417 DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
2418
2419 /*
2420 * Create a symlink with mac80211. This is not very robust, as it does
2421 * not remove the symlink created. The implicit assumption is that
2422 * when the opmode exits, mac80211 will also exit, and will remove
2423 * this symlink as part of its cleanup.
2424 */
2425 if (priv->mac80211_registered) {
2426 char buf[100];
2427 struct dentry *mac80211_dir, *dev_dir, *root_dir;
2428
2429 dev_dir = dbgfs_dir->d_parent;
2430 root_dir = dev_dir->d_parent;
2431 mac80211_dir = priv->hw->wiphy->debugfsdir;
2432
2433 snprintf(buf, 100, "../../%s/%s", root_dir->d_name.name,
2434 dev_dir->d_name.name);
2435
2436 if (!debugfs_create_symlink("iwlwifi", mac80211_dir, buf))
2437 goto err;
2438 }
2439
2440 return 0;
2441
2442 err:
2443 IWL_ERR(priv, "failed to create the dvm debugfs entries\n");
2444 return -ENOMEM;
2445 }
2446