projects / deliverable / linux.git / blob
? search:


9ca429c23ad13ea2defa7ffad3db3fedb498912f
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-debugfs.c
1 /******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2011 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 LICENSE.GPL.
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
34 #include <linux/ieee80211.h>
35 #include <net/mac80211.h>
36
37
38 #include "iwl-dev.h"
39 #include "iwl-debug.h"
40 #include "iwl-core.h"
41 #include "iwl-io.h"
42 #include "iwl-agn.h"
43
44 /* create and remove of files */
45 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
46 if (!debugfs_create_file(#name, mode, parent, priv, \
47 &iwl_dbgfs_##name##_ops)) \
48 goto err; \
49 } while (0)
50
51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
52 struct dentry *__tmp; \
53 __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
54 parent, ptr); \
55 if (IS_ERR(__tmp) || !__tmp) \
56 goto err; \
57 } while (0)
58
59 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
60 struct dentry *__tmp; \
61 __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
62 parent, ptr); \
63 if (IS_ERR(__tmp) || !__tmp) \
64 goto err; \
65 } while (0)
66
67 /* file operation */
68 #define DEBUGFS_READ_FUNC(name) \
69 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
70 char __user *user_buf, \
71 size_t count, loff_t *ppos);
72
73 #define DEBUGFS_WRITE_FUNC(name) \
74 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
75 const char __user *user_buf, \
76 size_t count, loff_t *ppos);
77
78
79 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
80 {
81 file->private_data = inode->i_private;
82 return 0;
83 }
84
85 #define DEBUGFS_READ_FILE_OPS(name) \
86 DEBUGFS_READ_FUNC(name); \
87 static const struct file_operations iwl_dbgfs_##name##_ops = { \
88 .read = iwl_dbgfs_##name##_read, \
89 .open = iwl_dbgfs_open_file_generic, \
90 .llseek = generic_file_llseek, \
91 };
92
93 #define DEBUGFS_WRITE_FILE_OPS(name) \
94 DEBUGFS_WRITE_FUNC(name); \
95 static const struct file_operations iwl_dbgfs_##name##_ops = { \
96 .write = iwl_dbgfs_##name##_write, \
97 .open = iwl_dbgfs_open_file_generic, \
98 .llseek = generic_file_llseek, \
99 };
100
101
102 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
103 DEBUGFS_READ_FUNC(name); \
104 DEBUGFS_WRITE_FUNC(name); \
105 static const struct file_operations iwl_dbgfs_##name##_ops = { \
106 .write = iwl_dbgfs_##name##_write, \
107 .read = iwl_dbgfs_##name##_read, \
108 .open = iwl_dbgfs_open_file_generic, \
109 .llseek = generic_file_llseek, \
110 };
111
112 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
113 char __user *user_buf,
114 size_t count, loff_t *ppos) {
115
116 struct iwl_priv *priv = file->private_data;
117 char *buf;
118 int pos = 0;
119
120 int cnt;
121 ssize_t ret;
122 const size_t bufsz = 100 +
123 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
124 buf = kzalloc(bufsz, GFP_KERNEL);
125 if (!buf)
126 return -ENOMEM;
127 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
128 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
129 pos += scnprintf(buf + pos, bufsz - pos,
130 "\t%25s\t\t: %u\n",
131 get_mgmt_string(cnt),
132 priv->tx_stats.mgmt[cnt]);
133 }
134 pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
135 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
136 pos += scnprintf(buf + pos, bufsz - pos,
137 "\t%25s\t\t: %u\n",
138 get_ctrl_string(cnt),
139 priv->tx_stats.ctrl[cnt]);
140 }
141 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
142 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
143 priv->tx_stats.data_cnt);
144 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
145 priv->tx_stats.data_bytes);
146 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
147 kfree(buf);
148 return ret;
149 }
150
151 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
152 const char __user *user_buf,
153 size_t count, loff_t *ppos)
154 {
155 struct iwl_priv *priv = file->private_data;
156 u32 clear_flag;
157 char buf[8];
158 int buf_size;
159
160 memset(buf, 0, sizeof(buf));
161 buf_size = min(count, sizeof(buf) - 1);
162 if (copy_from_user(buf, user_buf, buf_size))
163 return -EFAULT;
164 if (sscanf(buf, "%x", &clear_flag) != 1)
165 return -EFAULT;
166 iwl_clear_traffic_stats(priv);
167
168 return count;
169 }
170
171 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
172 char __user *user_buf,
173 size_t count, loff_t *ppos) {
174
175 struct iwl_priv *priv = file->private_data;
176 char *buf;
177 int pos = 0;
178 int cnt;
179 ssize_t ret;
180 const size_t bufsz = 100 +
181 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
182 buf = kzalloc(bufsz, GFP_KERNEL);
183 if (!buf)
184 return -ENOMEM;
185
186 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
187 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
188 pos += scnprintf(buf + pos, bufsz - pos,
189 "\t%25s\t\t: %u\n",
190 get_mgmt_string(cnt),
191 priv->rx_stats.mgmt[cnt]);
192 }
193 pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
194 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
195 pos += scnprintf(buf + pos, bufsz - pos,
196 "\t%25s\t\t: %u\n",
197 get_ctrl_string(cnt),
198 priv->rx_stats.ctrl[cnt]);
199 }
200 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
201 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
202 priv->rx_stats.data_cnt);
203 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
204 priv->rx_stats.data_bytes);
205
206 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
207 kfree(buf);
208 return ret;
209 }
210
211 static ssize_t iwl_dbgfs_sram_read(struct file *file,
212 char __user *user_buf,
213 size_t count, loff_t *ppos)
214 {
215 u32 val = 0;
216 char *buf;
217 ssize_t ret;
218 int i = 0;
219 bool device_format = false;
220 int offset = 0;
221 int len = 0;
222 int pos = 0;
223 int sram;
224 struct iwl_priv *priv = file->private_data;
225 size_t bufsz;
226
227 /* default is to dump the entire data segment */
228 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
229 priv->dbgfs_sram_offset = 0x800000;
230 if (priv->ucode_type == IWL_UCODE_INIT)
231 priv->dbgfs_sram_len = priv->ucode_init.data.len;
232 else
233 priv->dbgfs_sram_len = priv->ucode_rt.data.len;
234 }
235 len = priv->dbgfs_sram_len;
236
237 if (len == -4) {
238 device_format = true;
239 len = 4;
240 }
241
242 bufsz = 50 + len * 4;
243 buf = kmalloc(bufsz, GFP_KERNEL);
244 if (!buf)
245 return -ENOMEM;
246
247 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
248 len);
249 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
250 priv->dbgfs_sram_offset);
251
252 /* adjust sram address since reads are only on even u32 boundaries */
253 offset = priv->dbgfs_sram_offset & 0x3;
254 sram = priv->dbgfs_sram_offset & ~0x3;
255
256 /* read the first u32 from sram */
257 val = iwl_read_targ_mem(priv, sram);
258
259 for (; len; len--) {
260 /* put the address at the start of every line */
261 if (i == 0)
262 pos += scnprintf(buf + pos, bufsz - pos,
263 "%08X: ", sram + offset);
264
265 if (device_format)
266 pos += scnprintf(buf + pos, bufsz - pos,
267 "%02x", (val >> (8 * (3 - offset))) & 0xff);
268 else
269 pos += scnprintf(buf + pos, bufsz - pos,
270 "%02x ", (val >> (8 * offset)) & 0xff);
271
272 /* if all bytes processed, read the next u32 from sram */
273 if (++offset == 4) {
274 sram += 4;
275 offset = 0;
276 val = iwl_read_targ_mem(priv, sram);
277 }
278
279 /* put in extra spaces and split lines for human readability */
280 if (++i == 16) {
281 i = 0;
282 pos += scnprintf(buf + pos, bufsz - pos, "\n");
283 } else if (!(i & 7)) {
284 pos += scnprintf(buf + pos, bufsz - pos, " ");
285 } else if (!(i & 3)) {
286 pos += scnprintf(buf + pos, bufsz - pos, " ");
287 }
288 }
289 if (i)
290 pos += scnprintf(buf + pos, bufsz - pos, "\n");
291
292 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
293 kfree(buf);
294 return ret;
295 }
296
297 static ssize_t iwl_dbgfs_sram_write(struct file *file,
298 const char __user *user_buf,
299 size_t count, loff_t *ppos)
300 {
301 struct iwl_priv *priv = file->private_data;
302 char buf[64];
303 int buf_size;
304 u32 offset, len;
305
306 memset(buf, 0, sizeof(buf));
307 buf_size = min(count, sizeof(buf) - 1);
308 if (copy_from_user(buf, user_buf, buf_size))
309 return -EFAULT;
310
311 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
312 priv->dbgfs_sram_offset = offset;
313 priv->dbgfs_sram_len = len;
314 } else if (sscanf(buf, "%x", &offset) == 1) {
315 priv->dbgfs_sram_offset = offset;
316 priv->dbgfs_sram_len = -4;
317 } else {
318 priv->dbgfs_sram_offset = 0;
319 priv->dbgfs_sram_len = 0;
320 }
321
322 return count;
323 }
324
325 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
326 char __user *user_buf,
327 size_t count, loff_t *ppos)
328 {
329 struct iwl_priv *priv = file->private_data;
330
331 if (!priv->wowlan_sram)
332 return -ENODATA;
333
334 return simple_read_from_buffer(user_buf, count, ppos,
335 priv->wowlan_sram,
336 priv->ucode_wowlan.data.len);
337 }
338 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
339 size_t count, loff_t *ppos)
340 {
341 struct iwl_priv *priv = file->private_data;
342 struct iwl_station_entry *station;
343 int max_sta = hw_params(priv).max_stations;
344 char *buf;
345 int i, j, pos = 0;
346 ssize_t ret;
347 /* Add 30 for initial string */
348 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
349
350 buf = kmalloc(bufsz, GFP_KERNEL);
351 if (!buf)
352 return -ENOMEM;
353
354 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
355 priv->num_stations);
356
357 for (i = 0; i < max_sta; i++) {
358 station = &priv->stations[i];
359 if (!station->used)
360 continue;
361 pos += scnprintf(buf + pos, bufsz - pos,
362 "station %d - addr: %pM, flags: %#x\n",
363 i, station->sta.sta.addr,
364 station->sta.station_flags_msk);
365 pos += scnprintf(buf + pos, bufsz - pos,
366 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
367 pos += scnprintf(buf + pos, bufsz - pos,
368 "start_idx\tbitmap\t\t\trate_n_flags\n");
369
370 for (j = 0; j < MAX_TID_COUNT; j++) {
371 pos += scnprintf(buf + pos, bufsz - pos,
372 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
373 j, station->tid[j].seq_number,
374 station->tid[j].agg.txq_id,
375 station->tid[j].agg.frame_count,
376 station->tid[j].tfds_in_queue,
377 station->tid[j].agg.start_idx,
378 station->tid[j].agg.bitmap,
379 station->tid[j].agg.rate_n_flags);
380
381 if (station->tid[j].agg.wait_for_ba)
382 pos += scnprintf(buf + pos, bufsz - pos,
383 " - waitforba");
384 pos += scnprintf(buf + pos, bufsz - pos, "\n");
385 }
386
387 pos += scnprintf(buf + pos, bufsz - pos, "\n");
388 }
389
390 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
391 kfree(buf);
392 return ret;
393 }
394
395 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
396 char __user *user_buf,
397 size_t count,
398 loff_t *ppos)
399 {
400 ssize_t ret;
401 struct iwl_priv *priv = file->private_data;
402 int pos = 0, ofs = 0, buf_size = 0;
403 const u8 *ptr;
404 char *buf;
405 u16 eeprom_ver;
406 size_t eeprom_len = priv->cfg->base_params->eeprom_size;
407 buf_size = 4 * eeprom_len + 256;
408
409 if (eeprom_len % 16) {
410 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
411 return -ENODATA;
412 }
413
414 ptr = priv->eeprom;
415 if (!ptr) {
416 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
417 return -ENOMEM;
418 }
419
420 /* 4 characters for byte 0xYY */
421 buf = kzalloc(buf_size, GFP_KERNEL);
422 if (!buf) {
423 IWL_ERR(priv, "Can not allocate Buffer\n");
424 return -ENOMEM;
425 }
426 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
427 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
428 "version: 0x%x\n",
429 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
430 ? "OTP" : "EEPROM", eeprom_ver);
431 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
432 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
433 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
434 buf_size - pos, 0);
435 pos += strlen(buf + pos);
436 if (buf_size - pos > 0)
437 buf[pos++] = '\n';
438 }
439
440 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
441 kfree(buf);
442 return ret;
443 }
444
445 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
446 size_t count, loff_t *ppos)
447 {
448 struct iwl_priv *priv = file->private_data;
449 struct ieee80211_channel *channels = NULL;
450 const struct ieee80211_supported_band *supp_band = NULL;
451 int pos = 0, i, bufsz = PAGE_SIZE;
452 char *buf;
453 ssize_t ret;
454
455 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status))
456 return -EAGAIN;
457
458 buf = kzalloc(bufsz, GFP_KERNEL);
459 if (!buf) {
460 IWL_ERR(priv, "Can not allocate Buffer\n");
461 return -ENOMEM;
462 }
463
464 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
465 if (supp_band) {
466 channels = supp_band->channels;
467
468 pos += scnprintf(buf + pos, bufsz - pos,
469 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
470 supp_band->n_channels);
471
472 for (i = 0; i < supp_band->n_channels; i++)
473 pos += scnprintf(buf + pos, bufsz - pos,
474 "%d: %ddBm: BSS%s%s, %s.\n",
475 channels[i].hw_value,
476 channels[i].max_power,
477 channels[i].flags & IEEE80211_CHAN_RADAR ?
478 " (IEEE 802.11h required)" : "",
479 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
480 || (channels[i].flags &
481 IEEE80211_CHAN_RADAR)) ? "" :
482 ", IBSS",
483 channels[i].flags &
484 IEEE80211_CHAN_PASSIVE_SCAN ?
485 "passive only" : "active/passive");
486 }
487 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
488 if (supp_band) {
489 channels = supp_band->channels;
490
491 pos += scnprintf(buf + pos, bufsz - pos,
492 "Displaying %d channels in 5.2GHz band (802.11a)\n",
493 supp_band->n_channels);
494
495 for (i = 0; i < supp_band->n_channels; i++)
496 pos += scnprintf(buf + pos, bufsz - pos,
497 "%d: %ddBm: BSS%s%s, %s.\n",
498 channels[i].hw_value,
499 channels[i].max_power,
500 channels[i].flags & IEEE80211_CHAN_RADAR ?
501 " (IEEE 802.11h required)" : "",
502 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
503 || (channels[i].flags &
504 IEEE80211_CHAN_RADAR)) ? "" :
505 ", IBSS",
506 channels[i].flags &
507 IEEE80211_CHAN_PASSIVE_SCAN ?
508 "passive only" : "active/passive");
509 }
510 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
511 kfree(buf);
512 return ret;
513 }
514
515 static ssize_t iwl_dbgfs_status_read(struct file *file,
516 char __user *user_buf,
517 size_t count, loff_t *ppos) {
518
519 struct iwl_priv *priv = file->private_data;
520 char buf[512];
521 int pos = 0;
522 const size_t bufsz = sizeof(buf);
523
524 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
525 test_bit(STATUS_HCMD_ACTIVE, &priv->shrd->status));
526 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
527 test_bit(STATUS_INT_ENABLED, &priv->shrd->status));
528 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
529 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
530 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
531 test_bit(STATUS_CT_KILL, &priv->shrd->status));
532 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
533 test_bit(STATUS_INIT, &priv->shrd->status));
534 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
535 test_bit(STATUS_ALIVE, &priv->shrd->status));
536 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
537 test_bit(STATUS_READY, &priv->shrd->status));
538 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
539 test_bit(STATUS_TEMPERATURE, &priv->shrd->status));
540 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
541 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status));
542 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
543 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status));
544 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
545 test_bit(STATUS_STATISTICS, &priv->shrd->status));
546 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
547 test_bit(STATUS_SCANNING, &priv->shrd->status));
548 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
549 test_bit(STATUS_SCAN_ABORTING, &priv->shrd->status));
550 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
551 test_bit(STATUS_SCAN_HW, &priv->shrd->status));
552 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
553 test_bit(STATUS_POWER_PMI, &priv->shrd->status));
554 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
555 test_bit(STATUS_FW_ERROR, &priv->shrd->status));
556 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
557 }
558
559 static ssize_t iwl_dbgfs_rx_handlers_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
565 int pos = 0;
566 int cnt = 0;
567 char *buf;
568 int bufsz = 24 * 64; /* 24 items * 64 char per item */
569 ssize_t ret;
570
571 buf = kzalloc(bufsz, GFP_KERNEL);
572 if (!buf) {
573 IWL_ERR(priv, "Can not allocate Buffer\n");
574 return -ENOMEM;
575 }
576
577 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
578 if (priv->rx_handlers_stats[cnt] > 0)
579 pos += scnprintf(buf + pos, bufsz - pos,
580 "\tRx handler[%36s]:\t\t %u\n",
581 get_cmd_string(cnt),
582 priv->rx_handlers_stats[cnt]);
583 }
584
585 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
586 kfree(buf);
587 return ret;
588 }
589
590 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
591 const char __user *user_buf,
592 size_t count, loff_t *ppos)
593 {
594 struct iwl_priv *priv = file->private_data;
595
596 char buf[8];
597 int buf_size;
598 u32 reset_flag;
599
600 memset(buf, 0, sizeof(buf));
601 buf_size = min(count, sizeof(buf) - 1);
602 if (copy_from_user(buf, user_buf, buf_size))
603 return -EFAULT;
604 if (sscanf(buf, "%x", &reset_flag) != 1)
605 return -EFAULT;
606 if (reset_flag == 0)
607 memset(&priv->rx_handlers_stats[0], 0,
608 sizeof(priv->rx_handlers_stats));
609
610 return count;
611 }
612
613 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
614 size_t count, loff_t *ppos)
615 {
616 struct iwl_priv *priv = file->private_data;
617 struct iwl_rxon_context *ctx;
618 int pos = 0, i;
619 char buf[256 * NUM_IWL_RXON_CTX];
620 const size_t bufsz = sizeof(buf);
621
622 for_each_context(priv, ctx) {
623 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
624 ctx->ctxid);
625 for (i = 0; i < AC_NUM; i++) {
626 pos += scnprintf(buf + pos, bufsz - pos,
627 "\tcw_min\tcw_max\taifsn\ttxop\n");
628 pos += scnprintf(buf + pos, bufsz - pos,
629 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
630 ctx->qos_data.def_qos_parm.ac[i].cw_min,
631 ctx->qos_data.def_qos_parm.ac[i].cw_max,
632 ctx->qos_data.def_qos_parm.ac[i].aifsn,
633 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
634 }
635 pos += scnprintf(buf + pos, bufsz - pos, "\n");
636 }
637 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
638 }
639
640 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
641 char __user *user_buf,
642 size_t count, loff_t *ppos)
643 {
644 struct iwl_priv *priv = file->private_data;
645 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
646 struct iwl_tt_restriction *restriction;
647 char buf[100];
648 int pos = 0;
649 const size_t bufsz = sizeof(buf);
650
651 pos += scnprintf(buf + pos, bufsz - pos,
652 "Thermal Throttling Mode: %s\n",
653 tt->advanced_tt ? "Advance" : "Legacy");
654 pos += scnprintf(buf + pos, bufsz - pos,
655 "Thermal Throttling State: %d\n",
656 tt->state);
657 if (tt->advanced_tt) {
658 restriction = tt->restriction + tt->state;
659 pos += scnprintf(buf + pos, bufsz - pos,
660 "Tx mode: %d\n",
661 restriction->tx_stream);
662 pos += scnprintf(buf + pos, bufsz - pos,
663 "Rx mode: %d\n",
664 restriction->rx_stream);
665 pos += scnprintf(buf + pos, bufsz - pos,
666 "HT mode: %d\n",
667 restriction->is_ht);
668 }
669 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
670 }
671
672 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
673 const char __user *user_buf,
674 size_t count, loff_t *ppos)
675 {
676 struct iwl_priv *priv = file->private_data;
677 char buf[8];
678 int buf_size;
679 int ht40;
680
681 memset(buf, 0, sizeof(buf));
682 buf_size = min(count, sizeof(buf) - 1);
683 if (copy_from_user(buf, user_buf, buf_size))
684 return -EFAULT;
685 if (sscanf(buf, "%d", &ht40) != 1)
686 return -EFAULT;
687 if (!iwl_is_any_associated(priv))
688 priv->disable_ht40 = ht40 ? true : false;
689 else {
690 IWL_ERR(priv, "Sta associated with AP - "
691 "Change to 40MHz channel support is not allowed\n");
692 return -EINVAL;
693 }
694
695 return count;
696 }
697
698 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
699 char __user *user_buf,
700 size_t count, loff_t *ppos)
701 {
702 struct iwl_priv *priv = file->private_data;
703 char buf[100];
704 int pos = 0;
705 const size_t bufsz = sizeof(buf);
706
707 pos += scnprintf(buf + pos, bufsz - pos,
708 "11n 40MHz Mode: %s\n",
709 priv->disable_ht40 ? "Disabled" : "Enabled");
710 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
711 }
712
713 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
714 const char __user *user_buf,
715 size_t count, loff_t *ppos)
716 {
717 struct iwl_priv *priv = file->private_data;
718 char buf[8];
719 int buf_size;
720 int value;
721
722 memset(buf, 0, sizeof(buf));
723 buf_size = min(count, sizeof(buf) - 1);
724 if (copy_from_user(buf, user_buf, buf_size))
725 return -EFAULT;
726
727 if (sscanf(buf, "%d", &value) != 1)
728 return -EINVAL;
729
730 /*
731 * Our users expect 0 to be "CAM", but 0 isn't actually
732 * valid here. However, let's not confuse them and present
733 * IWL_POWER_INDEX_1 as "1", not "0".
734 */
735 if (value == 0)
736 return -EINVAL;
737 else if (value > 0)
738 value -= 1;
739
740 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
741 return -EINVAL;
742
743 if (!iwl_is_ready_rf(priv->shrd))
744 return -EAGAIN;
745
746 priv->power_data.debug_sleep_level_override = value;
747
748 mutex_lock(&priv->shrd->mutex);
749 iwl_power_update_mode(priv, true);
750 mutex_unlock(&priv->shrd->mutex);
751
752 return count;
753 }
754
755 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
756 char __user *user_buf,
757 size_t count, loff_t *ppos)
758 {
759 struct iwl_priv *priv = file->private_data;
760 char buf[10];
761 int pos, value;
762 const size_t bufsz = sizeof(buf);
763
764 /* see the write function */
765 value = priv->power_data.debug_sleep_level_override;
766 if (value >= 0)
767 value += 1;
768
769 pos = scnprintf(buf, bufsz, "%d\n", value);
770 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
771 }
772
773 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
774 char __user *user_buf,
775 size_t count, loff_t *ppos)
776 {
777 struct iwl_priv *priv = file->private_data;
778 char buf[200];
779 int pos = 0, i;
780 const size_t bufsz = sizeof(buf);
781 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
782
783 pos += scnprintf(buf + pos, bufsz - pos,
784 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
785 pos += scnprintf(buf + pos, bufsz - pos,
786 "RX/TX timeout: %d/%d usec\n",
787 le32_to_cpu(cmd->rx_data_timeout),
788 le32_to_cpu(cmd->tx_data_timeout));
789 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
790 pos += scnprintf(buf + pos, bufsz - pos,
791 "sleep_interval[%d]: %d\n", i,
792 le32_to_cpu(cmd->sleep_interval[i]));
793
794 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
795 }
796
797 DEBUGFS_READ_WRITE_FILE_OPS(sram);
798 DEBUGFS_READ_FILE_OPS(wowlan_sram);
799 DEBUGFS_READ_FILE_OPS(nvm);
800 DEBUGFS_READ_FILE_OPS(stations);
801 DEBUGFS_READ_FILE_OPS(channels);
802 DEBUGFS_READ_FILE_OPS(status);
803 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
804 DEBUGFS_READ_FILE_OPS(qos);
805 DEBUGFS_READ_FILE_OPS(thermal_throttling);
806 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
807 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
808 DEBUGFS_READ_FILE_OPS(current_sleep_command);
809
810 static const char *fmt_value = " %-30s %10u\n";
811 static const char *fmt_hex = " %-30s 0x%02X\n";
812 static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
813 static const char *fmt_header =
814 "%-32s current cumulative delta max\n";
815
816 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
817 {
818 int p = 0;
819 u32 flag;
820
821 flag = le32_to_cpu(priv->statistics.flag);
822
823 p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
824 if (flag & UCODE_STATISTICS_CLEAR_MSK)
825 p += scnprintf(buf + p, bufsz - p,
826 "\tStatistics have been cleared\n");
827 p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
828 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
829 ? "2.4 GHz" : "5.2 GHz");
830 p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
831 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
832 ? "enabled" : "disabled");
833
834 return p;
835 }
836
837 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
838 char __user *user_buf,
839 size_t count, loff_t *ppos)
840 {
841 struct iwl_priv *priv = file->private_data;
842 int pos = 0;
843 char *buf;
844 int bufsz = sizeof(struct statistics_rx_phy) * 40 +
845 sizeof(struct statistics_rx_non_phy) * 40 +
846 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
847 ssize_t ret;
848 struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
849 struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
850 struct statistics_rx_non_phy *general, *accum_general;
851 struct statistics_rx_non_phy *delta_general, *max_general;
852 struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
853
854 if (!iwl_is_alive(priv->shrd))
855 return -EAGAIN;
856
857 buf = kzalloc(bufsz, GFP_KERNEL);
858 if (!buf) {
859 IWL_ERR(priv, "Can not allocate Buffer\n");
860 return -ENOMEM;
861 }
862
863 /*
864 * the statistic information display here is based on
865 * the last statistics notification from uCode
866 * might not reflect the current uCode activity
867 */
868 ofdm = &priv->statistics.rx_ofdm;
869 cck = &priv->statistics.rx_cck;
870 general = &priv->statistics.rx_non_phy;
871 ht = &priv->statistics.rx_ofdm_ht;
872 accum_ofdm = &priv->accum_stats.rx_ofdm;
873 accum_cck = &priv->accum_stats.rx_cck;
874 accum_general = &priv->accum_stats.rx_non_phy;
875 accum_ht = &priv->accum_stats.rx_ofdm_ht;
876 delta_ofdm = &priv->delta_stats.rx_ofdm;
877 delta_cck = &priv->delta_stats.rx_cck;
878 delta_general = &priv->delta_stats.rx_non_phy;
879 delta_ht = &priv->delta_stats.rx_ofdm_ht;
880 max_ofdm = &priv->max_delta_stats.rx_ofdm;
881 max_cck = &priv->max_delta_stats.rx_cck;
882 max_general = &priv->max_delta_stats.rx_non_phy;
883 max_ht = &priv->max_delta_stats.rx_ofdm_ht;
884
885 pos += iwl_statistics_flag(priv, buf, bufsz);
886 pos += scnprintf(buf + pos, bufsz - pos,
887 fmt_header, "Statistics_Rx - OFDM:");
888 pos += scnprintf(buf + pos, bufsz - pos,
889 fmt_table, "ina_cnt:",
890 le32_to_cpu(ofdm->ina_cnt),
891 accum_ofdm->ina_cnt,
892 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
893 pos += scnprintf(buf + pos, bufsz - pos,
894 fmt_table, "fina_cnt:",
895 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
896 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
897 pos += scnprintf(buf + pos, bufsz - pos,
898 fmt_table, "plcp_err:",
899 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
900 delta_ofdm->plcp_err, max_ofdm->plcp_err);
901 pos += scnprintf(buf + pos, bufsz - pos,
902 fmt_table, "crc32_err:",
903 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
904 delta_ofdm->crc32_err, max_ofdm->crc32_err);
905 pos += scnprintf(buf + pos, bufsz - pos,
906 fmt_table, "overrun_err:",
907 le32_to_cpu(ofdm->overrun_err),
908 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
909 max_ofdm->overrun_err);
910 pos += scnprintf(buf + pos, bufsz - pos,
911 fmt_table, "early_overrun_err:",
912 le32_to_cpu(ofdm->early_overrun_err),
913 accum_ofdm->early_overrun_err,
914 delta_ofdm->early_overrun_err,
915 max_ofdm->early_overrun_err);
916 pos += scnprintf(buf + pos, bufsz - pos,
917 fmt_table, "crc32_good:",
918 le32_to_cpu(ofdm->crc32_good),
919 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
920 max_ofdm->crc32_good);
921 pos += scnprintf(buf + pos, bufsz - pos,
922 fmt_table, "false_alarm_cnt:",
923 le32_to_cpu(ofdm->false_alarm_cnt),
924 accum_ofdm->false_alarm_cnt,
925 delta_ofdm->false_alarm_cnt,
926 max_ofdm->false_alarm_cnt);
927 pos += scnprintf(buf + pos, bufsz - pos,
928 fmt_table, "fina_sync_err_cnt:",
929 le32_to_cpu(ofdm->fina_sync_err_cnt),
930 accum_ofdm->fina_sync_err_cnt,
931 delta_ofdm->fina_sync_err_cnt,
932 max_ofdm->fina_sync_err_cnt);
933 pos += scnprintf(buf + pos, bufsz - pos,
934 fmt_table, "sfd_timeout:",
935 le32_to_cpu(ofdm->sfd_timeout),
936 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
937 max_ofdm->sfd_timeout);
938 pos += scnprintf(buf + pos, bufsz - pos,
939 fmt_table, "fina_timeout:",
940 le32_to_cpu(ofdm->fina_timeout),
941 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
942 max_ofdm->fina_timeout);
943 pos += scnprintf(buf + pos, bufsz - pos,
944 fmt_table, "unresponded_rts:",
945 le32_to_cpu(ofdm->unresponded_rts),
946 accum_ofdm->unresponded_rts,
947 delta_ofdm->unresponded_rts,
948 max_ofdm->unresponded_rts);
949 pos += scnprintf(buf + pos, bufsz - pos,
950 fmt_table, "rxe_frame_lmt_ovrun:",
951 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
952 accum_ofdm->rxe_frame_limit_overrun,
953 delta_ofdm->rxe_frame_limit_overrun,
954 max_ofdm->rxe_frame_limit_overrun);
955 pos += scnprintf(buf + pos, bufsz - pos,
956 fmt_table, "sent_ack_cnt:",
957 le32_to_cpu(ofdm->sent_ack_cnt),
958 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
959 max_ofdm->sent_ack_cnt);
960 pos += scnprintf(buf + pos, bufsz - pos,
961 fmt_table, "sent_cts_cnt:",
962 le32_to_cpu(ofdm->sent_cts_cnt),
963 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
964 max_ofdm->sent_cts_cnt);
965 pos += scnprintf(buf + pos, bufsz - pos,
966 fmt_table, "sent_ba_rsp_cnt:",
967 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
968 accum_ofdm->sent_ba_rsp_cnt,
969 delta_ofdm->sent_ba_rsp_cnt,
970 max_ofdm->sent_ba_rsp_cnt);
971 pos += scnprintf(buf + pos, bufsz - pos,
972 fmt_table, "dsp_self_kill:",
973 le32_to_cpu(ofdm->dsp_self_kill),
974 accum_ofdm->dsp_self_kill,
975 delta_ofdm->dsp_self_kill,
976 max_ofdm->dsp_self_kill);
977 pos += scnprintf(buf + pos, bufsz - pos,
978 fmt_table, "mh_format_err:",
979 le32_to_cpu(ofdm->mh_format_err),
980 accum_ofdm->mh_format_err,
981 delta_ofdm->mh_format_err,
982 max_ofdm->mh_format_err);
983 pos += scnprintf(buf + pos, bufsz - pos,
984 fmt_table, "re_acq_main_rssi_sum:",
985 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
986 accum_ofdm->re_acq_main_rssi_sum,
987 delta_ofdm->re_acq_main_rssi_sum,
988 max_ofdm->re_acq_main_rssi_sum);
989
990 pos += scnprintf(buf + pos, bufsz - pos,
991 fmt_header, "Statistics_Rx - CCK:");
992 pos += scnprintf(buf + pos, bufsz - pos,
993 fmt_table, "ina_cnt:",
994 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
995 delta_cck->ina_cnt, max_cck->ina_cnt);
996 pos += scnprintf(buf + pos, bufsz - pos,
997 fmt_table, "fina_cnt:",
998 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
999 delta_cck->fina_cnt, max_cck->fina_cnt);
1000 pos += scnprintf(buf + pos, bufsz - pos,
1001 fmt_table, "plcp_err:",
1002 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
1003 delta_cck->plcp_err, max_cck->plcp_err);
1004 pos += scnprintf(buf + pos, bufsz - pos,
1005 fmt_table, "crc32_err:",
1006 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
1007 delta_cck->crc32_err, max_cck->crc32_err);
1008 pos += scnprintf(buf + pos, bufsz - pos,
1009 fmt_table, "overrun_err:",
1010 le32_to_cpu(cck->overrun_err),
1011 accum_cck->overrun_err, delta_cck->overrun_err,
1012 max_cck->overrun_err);
1013 pos += scnprintf(buf + pos, bufsz - pos,
1014 fmt_table, "early_overrun_err:",
1015 le32_to_cpu(cck->early_overrun_err),
1016 accum_cck->early_overrun_err,
1017 delta_cck->early_overrun_err,
1018 max_cck->early_overrun_err);
1019 pos += scnprintf(buf + pos, bufsz - pos,
1020 fmt_table, "crc32_good:",
1021 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
1022 delta_cck->crc32_good, max_cck->crc32_good);
1023 pos += scnprintf(buf + pos, bufsz - pos,
1024 fmt_table, "false_alarm_cnt:",
1025 le32_to_cpu(cck->false_alarm_cnt),
1026 accum_cck->false_alarm_cnt,
1027 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
1028 pos += scnprintf(buf + pos, bufsz - pos,
1029 fmt_table, "fina_sync_err_cnt:",
1030 le32_to_cpu(cck->fina_sync_err_cnt),
1031 accum_cck->fina_sync_err_cnt,
1032 delta_cck->fina_sync_err_cnt,
1033 max_cck->fina_sync_err_cnt);
1034 pos += scnprintf(buf + pos, bufsz - pos,
1035 fmt_table, "sfd_timeout:",
1036 le32_to_cpu(cck->sfd_timeout),
1037 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
1038 max_cck->sfd_timeout);
1039 pos += scnprintf(buf + pos, bufsz - pos,
1040 fmt_table, "fina_timeout:",
1041 le32_to_cpu(cck->fina_timeout),
1042 accum_cck->fina_timeout, delta_cck->fina_timeout,
1043 max_cck->fina_timeout);
1044 pos += scnprintf(buf + pos, bufsz - pos,
1045 fmt_table, "unresponded_rts:",
1046 le32_to_cpu(cck->unresponded_rts),
1047 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
1048 max_cck->unresponded_rts);
1049 pos += scnprintf(buf + pos, bufsz - pos,
1050 fmt_table, "rxe_frame_lmt_ovrun:",
1051 le32_to_cpu(cck->rxe_frame_limit_overrun),
1052 accum_cck->rxe_frame_limit_overrun,
1053 delta_cck->rxe_frame_limit_overrun,
1054 max_cck->rxe_frame_limit_overrun);
1055 pos += scnprintf(buf + pos, bufsz - pos,
1056 fmt_table, "sent_ack_cnt:",
1057 le32_to_cpu(cck->sent_ack_cnt),
1058 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
1059 max_cck->sent_ack_cnt);
1060 pos += scnprintf(buf + pos, bufsz - pos,
1061 fmt_table, "sent_cts_cnt:",
1062 le32_to_cpu(cck->sent_cts_cnt),
1063 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
1064 max_cck->sent_cts_cnt);
1065 pos += scnprintf(buf + pos, bufsz - pos,
1066 fmt_table, "sent_ba_rsp_cnt:",
1067 le32_to_cpu(cck->sent_ba_rsp_cnt),
1068 accum_cck->sent_ba_rsp_cnt,
1069 delta_cck->sent_ba_rsp_cnt,
1070 max_cck->sent_ba_rsp_cnt);
1071 pos += scnprintf(buf + pos, bufsz - pos,
1072 fmt_table, "dsp_self_kill:",
1073 le32_to_cpu(cck->dsp_self_kill),
1074 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
1075 max_cck->dsp_self_kill);
1076 pos += scnprintf(buf + pos, bufsz - pos,
1077 fmt_table, "mh_format_err:",
1078 le32_to_cpu(cck->mh_format_err),
1079 accum_cck->mh_format_err, delta_cck->mh_format_err,
1080 max_cck->mh_format_err);
1081 pos += scnprintf(buf + pos, bufsz - pos,
1082 fmt_table, "re_acq_main_rssi_sum:",
1083 le32_to_cpu(cck->re_acq_main_rssi_sum),
1084 accum_cck->re_acq_main_rssi_sum,
1085 delta_cck->re_acq_main_rssi_sum,
1086 max_cck->re_acq_main_rssi_sum);
1087
1088 pos += scnprintf(buf + pos, bufsz - pos,
1089 fmt_header, "Statistics_Rx - GENERAL:");
1090 pos += scnprintf(buf + pos, bufsz - pos,
1091 fmt_table, "bogus_cts:",
1092 le32_to_cpu(general->bogus_cts),
1093 accum_general->bogus_cts, delta_general->bogus_cts,
1094 max_general->bogus_cts);
1095 pos += scnprintf(buf + pos, bufsz - pos,
1096 fmt_table, "bogus_ack:",
1097 le32_to_cpu(general->bogus_ack),
1098 accum_general->bogus_ack, delta_general->bogus_ack,
1099 max_general->bogus_ack);
1100 pos += scnprintf(buf + pos, bufsz - pos,
1101 fmt_table, "non_bssid_frames:",
1102 le32_to_cpu(general->non_bssid_frames),
1103 accum_general->non_bssid_frames,
1104 delta_general->non_bssid_frames,
1105 max_general->non_bssid_frames);
1106 pos += scnprintf(buf + pos, bufsz - pos,
1107 fmt_table, "filtered_frames:",
1108 le32_to_cpu(general->filtered_frames),
1109 accum_general->filtered_frames,
1110 delta_general->filtered_frames,
1111 max_general->filtered_frames);
1112 pos += scnprintf(buf + pos, bufsz - pos,
1113 fmt_table, "non_channel_beacons:",
1114 le32_to_cpu(general->non_channel_beacons),
1115 accum_general->non_channel_beacons,
1116 delta_general->non_channel_beacons,
1117 max_general->non_channel_beacons);
1118 pos += scnprintf(buf + pos, bufsz - pos,
1119 fmt_table, "channel_beacons:",
1120 le32_to_cpu(general->channel_beacons),
1121 accum_general->channel_beacons,
1122 delta_general->channel_beacons,
1123 max_general->channel_beacons);
1124 pos += scnprintf(buf + pos, bufsz - pos,
1125 fmt_table, "num_missed_bcon:",
1126 le32_to_cpu(general->num_missed_bcon),
1127 accum_general->num_missed_bcon,
1128 delta_general->num_missed_bcon,
1129 max_general->num_missed_bcon);
1130 pos += scnprintf(buf + pos, bufsz - pos,
1131 fmt_table, "adc_rx_saturation_time:",
1132 le32_to_cpu(general->adc_rx_saturation_time),
1133 accum_general->adc_rx_saturation_time,
1134 delta_general->adc_rx_saturation_time,
1135 max_general->adc_rx_saturation_time);
1136 pos += scnprintf(buf + pos, bufsz - pos,
1137 fmt_table, "ina_detect_search_tm:",
1138 le32_to_cpu(general->ina_detection_search_time),
1139 accum_general->ina_detection_search_time,
1140 delta_general->ina_detection_search_time,
1141 max_general->ina_detection_search_time);
1142 pos += scnprintf(buf + pos, bufsz - pos,
1143 fmt_table, "beacon_silence_rssi_a:",
1144 le32_to_cpu(general->beacon_silence_rssi_a),
1145 accum_general->beacon_silence_rssi_a,
1146 delta_general->beacon_silence_rssi_a,
1147 max_general->beacon_silence_rssi_a);
1148 pos += scnprintf(buf + pos, bufsz - pos,
1149 fmt_table, "beacon_silence_rssi_b:",
1150 le32_to_cpu(general->beacon_silence_rssi_b),
1151 accum_general->beacon_silence_rssi_b,
1152 delta_general->beacon_silence_rssi_b,
1153 max_general->beacon_silence_rssi_b);
1154 pos += scnprintf(buf + pos, bufsz - pos,
1155 fmt_table, "beacon_silence_rssi_c:",
1156 le32_to_cpu(general->beacon_silence_rssi_c),
1157 accum_general->beacon_silence_rssi_c,
1158 delta_general->beacon_silence_rssi_c,
1159 max_general->beacon_silence_rssi_c);
1160 pos += scnprintf(buf + pos, bufsz - pos,
1161 fmt_table, "interference_data_flag:",
1162 le32_to_cpu(general->interference_data_flag),
1163 accum_general->interference_data_flag,
1164 delta_general->interference_data_flag,
1165 max_general->interference_data_flag);
1166 pos += scnprintf(buf + pos, bufsz - pos,
1167 fmt_table, "channel_load:",
1168 le32_to_cpu(general->channel_load),
1169 accum_general->channel_load,
1170 delta_general->channel_load,
1171 max_general->channel_load);
1172 pos += scnprintf(buf + pos, bufsz - pos,
1173 fmt_table, "dsp_false_alarms:",
1174 le32_to_cpu(general->dsp_false_alarms),
1175 accum_general->dsp_false_alarms,
1176 delta_general->dsp_false_alarms,
1177 max_general->dsp_false_alarms);
1178 pos += scnprintf(buf + pos, bufsz - pos,
1179 fmt_table, "beacon_rssi_a:",
1180 le32_to_cpu(general->beacon_rssi_a),
1181 accum_general->beacon_rssi_a,
1182 delta_general->beacon_rssi_a,
1183 max_general->beacon_rssi_a);
1184 pos += scnprintf(buf + pos, bufsz - pos,
1185 fmt_table, "beacon_rssi_b:",
1186 le32_to_cpu(general->beacon_rssi_b),
1187 accum_general->beacon_rssi_b,
1188 delta_general->beacon_rssi_b,
1189 max_general->beacon_rssi_b);
1190 pos += scnprintf(buf + pos, bufsz - pos,
1191 fmt_table, "beacon_rssi_c:",
1192 le32_to_cpu(general->beacon_rssi_c),
1193 accum_general->beacon_rssi_c,
1194 delta_general->beacon_rssi_c,
1195 max_general->beacon_rssi_c);
1196 pos += scnprintf(buf + pos, bufsz - pos,
1197 fmt_table, "beacon_energy_a:",
1198 le32_to_cpu(general->beacon_energy_a),
1199 accum_general->beacon_energy_a,
1200 delta_general->beacon_energy_a,
1201 max_general->beacon_energy_a);
1202 pos += scnprintf(buf + pos, bufsz - pos,
1203 fmt_table, "beacon_energy_b:",
1204 le32_to_cpu(general->beacon_energy_b),
1205 accum_general->beacon_energy_b,
1206 delta_general->beacon_energy_b,
1207 max_general->beacon_energy_b);
1208 pos += scnprintf(buf + pos, bufsz - pos,
1209 fmt_table, "beacon_energy_c:",
1210 le32_to_cpu(general->beacon_energy_c),
1211 accum_general->beacon_energy_c,
1212 delta_general->beacon_energy_c,
1213 max_general->beacon_energy_c);
1214
1215 pos += scnprintf(buf + pos, bufsz - pos,
1216 fmt_header, "Statistics_Rx - OFDM_HT:");
1217 pos += scnprintf(buf + pos, bufsz - pos,
1218 fmt_table, "plcp_err:",
1219 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1220 delta_ht->plcp_err, max_ht->plcp_err);
1221 pos += scnprintf(buf + pos, bufsz - pos,
1222 fmt_table, "overrun_err:",
1223 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1224 delta_ht->overrun_err, max_ht->overrun_err);
1225 pos += scnprintf(buf + pos, bufsz - pos,
1226 fmt_table, "early_overrun_err:",
1227 le32_to_cpu(ht->early_overrun_err),
1228 accum_ht->early_overrun_err,
1229 delta_ht->early_overrun_err,
1230 max_ht->early_overrun_err);
1231 pos += scnprintf(buf + pos, bufsz - pos,
1232 fmt_table, "crc32_good:",
1233 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1234 delta_ht->crc32_good, max_ht->crc32_good);
1235 pos += scnprintf(buf + pos, bufsz - pos,
1236 fmt_table, "crc32_err:",
1237 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1238 delta_ht->crc32_err, max_ht->crc32_err);
1239 pos += scnprintf(buf + pos, bufsz - pos,
1240 fmt_table, "mh_format_err:",
1241 le32_to_cpu(ht->mh_format_err),
1242 accum_ht->mh_format_err,
1243 delta_ht->mh_format_err, max_ht->mh_format_err);
1244 pos += scnprintf(buf + pos, bufsz - pos,
1245 fmt_table, "agg_crc32_good:",
1246 le32_to_cpu(ht->agg_crc32_good),
1247 accum_ht->agg_crc32_good,
1248 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1249 pos += scnprintf(buf + pos, bufsz - pos,
1250 fmt_table, "agg_mpdu_cnt:",
1251 le32_to_cpu(ht->agg_mpdu_cnt),
1252 accum_ht->agg_mpdu_cnt,
1253 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1254 pos += scnprintf(buf + pos, bufsz - pos,
1255 fmt_table, "agg_cnt:",
1256 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1257 delta_ht->agg_cnt, max_ht->agg_cnt);
1258 pos += scnprintf(buf + pos, bufsz - pos,
1259 fmt_table, "unsupport_mcs:",
1260 le32_to_cpu(ht->unsupport_mcs),
1261 accum_ht->unsupport_mcs,
1262 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1263
1264 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1265 kfree(buf);
1266 return ret;
1267 }
1268
1269 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1270 char __user *user_buf,
1271 size_t count, loff_t *ppos)
1272 {
1273 struct iwl_priv *priv = file->private_data;
1274 int pos = 0;
1275 char *buf;
1276 int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1277 ssize_t ret;
1278 struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1279
1280 if (!iwl_is_alive(priv->shrd))
1281 return -EAGAIN;
1282
1283 buf = kzalloc(bufsz, GFP_KERNEL);
1284 if (!buf) {
1285 IWL_ERR(priv, "Can not allocate Buffer\n");
1286 return -ENOMEM;
1287 }
1288
1289 /* the statistic information display here is based on
1290 * the last statistics notification from uCode
1291 * might not reflect the current uCode activity
1292 */
1293 tx = &priv->statistics.tx;
1294 accum_tx = &priv->accum_stats.tx;
1295 delta_tx = &priv->delta_stats.tx;
1296 max_tx = &priv->max_delta_stats.tx;
1297
1298 pos += iwl_statistics_flag(priv, buf, bufsz);
1299 pos += scnprintf(buf + pos, bufsz - pos,
1300 fmt_header, "Statistics_Tx:");
1301 pos += scnprintf(buf + pos, bufsz - pos,
1302 fmt_table, "preamble:",
1303 le32_to_cpu(tx->preamble_cnt),
1304 accum_tx->preamble_cnt,
1305 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1306 pos += scnprintf(buf + pos, bufsz - pos,
1307 fmt_table, "rx_detected_cnt:",
1308 le32_to_cpu(tx->rx_detected_cnt),
1309 accum_tx->rx_detected_cnt,
1310 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1311 pos += scnprintf(buf + pos, bufsz - pos,
1312 fmt_table, "bt_prio_defer_cnt:",
1313 le32_to_cpu(tx->bt_prio_defer_cnt),
1314 accum_tx->bt_prio_defer_cnt,
1315 delta_tx->bt_prio_defer_cnt,
1316 max_tx->bt_prio_defer_cnt);
1317 pos += scnprintf(buf + pos, bufsz - pos,
1318 fmt_table, "bt_prio_kill_cnt:",
1319 le32_to_cpu(tx->bt_prio_kill_cnt),
1320 accum_tx->bt_prio_kill_cnt,
1321 delta_tx->bt_prio_kill_cnt,
1322 max_tx->bt_prio_kill_cnt);
1323 pos += scnprintf(buf + pos, bufsz - pos,
1324 fmt_table, "few_bytes_cnt:",
1325 le32_to_cpu(tx->few_bytes_cnt),
1326 accum_tx->few_bytes_cnt,
1327 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1328 pos += scnprintf(buf + pos, bufsz - pos,
1329 fmt_table, "cts_timeout:",
1330 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1331 delta_tx->cts_timeout, max_tx->cts_timeout);
1332 pos += scnprintf(buf + pos, bufsz - pos,
1333 fmt_table, "ack_timeout:",
1334 le32_to_cpu(tx->ack_timeout),
1335 accum_tx->ack_timeout,
1336 delta_tx->ack_timeout, max_tx->ack_timeout);
1337 pos += scnprintf(buf + pos, bufsz - pos,
1338 fmt_table, "expected_ack_cnt:",
1339 le32_to_cpu(tx->expected_ack_cnt),
1340 accum_tx->expected_ack_cnt,
1341 delta_tx->expected_ack_cnt,
1342 max_tx->expected_ack_cnt);
1343 pos += scnprintf(buf + pos, bufsz - pos,
1344 fmt_table, "actual_ack_cnt:",
1345 le32_to_cpu(tx->actual_ack_cnt),
1346 accum_tx->actual_ack_cnt,
1347 delta_tx->actual_ack_cnt,
1348 max_tx->actual_ack_cnt);
1349 pos += scnprintf(buf + pos, bufsz - pos,
1350 fmt_table, "dump_msdu_cnt:",
1351 le32_to_cpu(tx->dump_msdu_cnt),
1352 accum_tx->dump_msdu_cnt,
1353 delta_tx->dump_msdu_cnt,
1354 max_tx->dump_msdu_cnt);
1355 pos += scnprintf(buf + pos, bufsz - pos,
1356 fmt_table, "abort_nxt_frame_mismatch:",
1357 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1358 accum_tx->burst_abort_next_frame_mismatch_cnt,
1359 delta_tx->burst_abort_next_frame_mismatch_cnt,
1360 max_tx->burst_abort_next_frame_mismatch_cnt);
1361 pos += scnprintf(buf + pos, bufsz - pos,
1362 fmt_table, "abort_missing_nxt_frame:",
1363 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1364 accum_tx->burst_abort_missing_next_frame_cnt,
1365 delta_tx->burst_abort_missing_next_frame_cnt,
1366 max_tx->burst_abort_missing_next_frame_cnt);
1367 pos += scnprintf(buf + pos, bufsz - pos,
1368 fmt_table, "cts_timeout_collision:",
1369 le32_to_cpu(tx->cts_timeout_collision),
1370 accum_tx->cts_timeout_collision,
1371 delta_tx->cts_timeout_collision,
1372 max_tx->cts_timeout_collision);
1373 pos += scnprintf(buf + pos, bufsz - pos,
1374 fmt_table, "ack_ba_timeout_collision:",
1375 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1376 accum_tx->ack_or_ba_timeout_collision,
1377 delta_tx->ack_or_ba_timeout_collision,
1378 max_tx->ack_or_ba_timeout_collision);
1379 pos += scnprintf(buf + pos, bufsz - pos,
1380 fmt_table, "agg ba_timeout:",
1381 le32_to_cpu(tx->agg.ba_timeout),
1382 accum_tx->agg.ba_timeout,
1383 delta_tx->agg.ba_timeout,
1384 max_tx->agg.ba_timeout);
1385 pos += scnprintf(buf + pos, bufsz - pos,
1386 fmt_table, "agg ba_resched_frames:",
1387 le32_to_cpu(tx->agg.ba_reschedule_frames),
1388 accum_tx->agg.ba_reschedule_frames,
1389 delta_tx->agg.ba_reschedule_frames,
1390 max_tx->agg.ba_reschedule_frames);
1391 pos += scnprintf(buf + pos, bufsz - pos,
1392 fmt_table, "agg scd_query_agg_frame:",
1393 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1394 accum_tx->agg.scd_query_agg_frame_cnt,
1395 delta_tx->agg.scd_query_agg_frame_cnt,
1396 max_tx->agg.scd_query_agg_frame_cnt);
1397 pos += scnprintf(buf + pos, bufsz - pos,
1398 fmt_table, "agg scd_query_no_agg:",
1399 le32_to_cpu(tx->agg.scd_query_no_agg),
1400 accum_tx->agg.scd_query_no_agg,
1401 delta_tx->agg.scd_query_no_agg,
1402 max_tx->agg.scd_query_no_agg);
1403 pos += scnprintf(buf + pos, bufsz - pos,
1404 fmt_table, "agg scd_query_agg:",
1405 le32_to_cpu(tx->agg.scd_query_agg),
1406 accum_tx->agg.scd_query_agg,
1407 delta_tx->agg.scd_query_agg,
1408 max_tx->agg.scd_query_agg);
1409 pos += scnprintf(buf + pos, bufsz - pos,
1410 fmt_table, "agg scd_query_mismatch:",
1411 le32_to_cpu(tx->agg.scd_query_mismatch),
1412 accum_tx->agg.scd_query_mismatch,
1413 delta_tx->agg.scd_query_mismatch,
1414 max_tx->agg.scd_query_mismatch);
1415 pos += scnprintf(buf + pos, bufsz - pos,
1416 fmt_table, "agg frame_not_ready:",
1417 le32_to_cpu(tx->agg.frame_not_ready),
1418 accum_tx->agg.frame_not_ready,
1419 delta_tx->agg.frame_not_ready,
1420 max_tx->agg.frame_not_ready);
1421 pos += scnprintf(buf + pos, bufsz - pos,
1422 fmt_table, "agg underrun:",
1423 le32_to_cpu(tx->agg.underrun),
1424 accum_tx->agg.underrun,
1425 delta_tx->agg.underrun, max_tx->agg.underrun);
1426 pos += scnprintf(buf + pos, bufsz - pos,
1427 fmt_table, "agg bt_prio_kill:",
1428 le32_to_cpu(tx->agg.bt_prio_kill),
1429 accum_tx->agg.bt_prio_kill,
1430 delta_tx->agg.bt_prio_kill,
1431 max_tx->agg.bt_prio_kill);
1432 pos += scnprintf(buf + pos, bufsz - pos,
1433 fmt_table, "agg rx_ba_rsp_cnt:",
1434 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1435 accum_tx->agg.rx_ba_rsp_cnt,
1436 delta_tx->agg.rx_ba_rsp_cnt,
1437 max_tx->agg.rx_ba_rsp_cnt);
1438
1439 if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1440 pos += scnprintf(buf + pos, bufsz - pos,
1441 "tx power: (1/2 dB step)\n");
1442 if ((priv->cfg->valid_tx_ant & ANT_A) && tx->tx_power.ant_a)
1443 pos += scnprintf(buf + pos, bufsz - pos,
1444 fmt_hex, "antenna A:",
1445 tx->tx_power.ant_a);
1446 if ((priv->cfg->valid_tx_ant & ANT_B) && tx->tx_power.ant_b)
1447 pos += scnprintf(buf + pos, bufsz - pos,
1448 fmt_hex, "antenna B:",
1449 tx->tx_power.ant_b);
1450 if ((priv->cfg->valid_tx_ant & ANT_C) && tx->tx_power.ant_c)
1451 pos += scnprintf(buf + pos, bufsz - pos,
1452 fmt_hex, "antenna C:",
1453 tx->tx_power.ant_c);
1454 }
1455 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1456 kfree(buf);
1457 return ret;
1458 }
1459
1460 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1461 char __user *user_buf,
1462 size_t count, loff_t *ppos)
1463 {
1464 struct iwl_priv *priv = file->private_data;
1465 int pos = 0;
1466 char *buf;
1467 int bufsz = sizeof(struct statistics_general) * 10 + 300;
1468 ssize_t ret;
1469 struct statistics_general_common *general, *accum_general;
1470 struct statistics_general_common *delta_general, *max_general;
1471 struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1472 struct statistics_div *div, *accum_div, *delta_div, *max_div;
1473
1474 if (!iwl_is_alive(priv->shrd))
1475 return -EAGAIN;
1476
1477 buf = kzalloc(bufsz, GFP_KERNEL);
1478 if (!buf) {
1479 IWL_ERR(priv, "Can not allocate Buffer\n");
1480 return -ENOMEM;
1481 }
1482
1483 /* the statistic information display here is based on
1484 * the last statistics notification from uCode
1485 * might not reflect the current uCode activity
1486 */
1487 general = &priv->statistics.common;
1488 dbg = &priv->statistics.common.dbg;
1489 div = &priv->statistics.common.div;
1490 accum_general = &priv->accum_stats.common;
1491 accum_dbg = &priv->accum_stats.common.dbg;
1492 accum_div = &priv->accum_stats.common.div;
1493 delta_general = &priv->delta_stats.common;
1494 max_general = &priv->max_delta_stats.common;
1495 delta_dbg = &priv->delta_stats.common.dbg;
1496 max_dbg = &priv->max_delta_stats.common.dbg;
1497 delta_div = &priv->delta_stats.common.div;
1498 max_div = &priv->max_delta_stats.common.div;
1499
1500 pos += iwl_statistics_flag(priv, buf, bufsz);
1501 pos += scnprintf(buf + pos, bufsz - pos,
1502 fmt_header, "Statistics_General:");
1503 pos += scnprintf(buf + pos, bufsz - pos,
1504 fmt_value, "temperature:",
1505 le32_to_cpu(general->temperature));
1506 pos += scnprintf(buf + pos, bufsz - pos,
1507 fmt_value, "temperature_m:",
1508 le32_to_cpu(general->temperature_m));
1509 pos += scnprintf(buf + pos, bufsz - pos,
1510 fmt_value, "ttl_timestamp:",
1511 le32_to_cpu(general->ttl_timestamp));
1512 pos += scnprintf(buf + pos, bufsz - pos,
1513 fmt_table, "burst_check:",
1514 le32_to_cpu(dbg->burst_check),
1515 accum_dbg->burst_check,
1516 delta_dbg->burst_check, max_dbg->burst_check);
1517 pos += scnprintf(buf + pos, bufsz - pos,
1518 fmt_table, "burst_count:",
1519 le32_to_cpu(dbg->burst_count),
1520 accum_dbg->burst_count,
1521 delta_dbg->burst_count, max_dbg->burst_count);
1522 pos += scnprintf(buf + pos, bufsz - pos,
1523 fmt_table, "wait_for_silence_timeout_count:",
1524 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1525 accum_dbg->wait_for_silence_timeout_cnt,
1526 delta_dbg->wait_for_silence_timeout_cnt,
1527 max_dbg->wait_for_silence_timeout_cnt);
1528 pos += scnprintf(buf + pos, bufsz - pos,
1529 fmt_table, "sleep_time:",
1530 le32_to_cpu(general->sleep_time),
1531 accum_general->sleep_time,
1532 delta_general->sleep_time, max_general->sleep_time);
1533 pos += scnprintf(buf + pos, bufsz - pos,
1534 fmt_table, "slots_out:",
1535 le32_to_cpu(general->slots_out),
1536 accum_general->slots_out,
1537 delta_general->slots_out, max_general->slots_out);
1538 pos += scnprintf(buf + pos, bufsz - pos,
1539 fmt_table, "slots_idle:",
1540 le32_to_cpu(general->slots_idle),
1541 accum_general->slots_idle,
1542 delta_general->slots_idle, max_general->slots_idle);
1543 pos += scnprintf(buf + pos, bufsz - pos,
1544 fmt_table, "tx_on_a:",
1545 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1546 delta_div->tx_on_a, max_div->tx_on_a);
1547 pos += scnprintf(buf + pos, bufsz - pos,
1548 fmt_table, "tx_on_b:",
1549 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1550 delta_div->tx_on_b, max_div->tx_on_b);
1551 pos += scnprintf(buf + pos, bufsz - pos,
1552 fmt_table, "exec_time:",
1553 le32_to_cpu(div->exec_time), accum_div->exec_time,
1554 delta_div->exec_time, max_div->exec_time);
1555 pos += scnprintf(buf + pos, bufsz - pos,
1556 fmt_table, "probe_time:",
1557 le32_to_cpu(div->probe_time), accum_div->probe_time,
1558 delta_div->probe_time, max_div->probe_time);
1559 pos += scnprintf(buf + pos, bufsz - pos,
1560 fmt_table, "rx_enable_counter:",
1561 le32_to_cpu(general->rx_enable_counter),
1562 accum_general->rx_enable_counter,
1563 delta_general->rx_enable_counter,
1564 max_general->rx_enable_counter);
1565 pos += scnprintf(buf + pos, bufsz - pos,
1566 fmt_table, "num_of_sos_states:",
1567 le32_to_cpu(general->num_of_sos_states),
1568 accum_general->num_of_sos_states,
1569 delta_general->num_of_sos_states,
1570 max_general->num_of_sos_states);
1571 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1572 kfree(buf);
1573 return ret;
1574 }
1575
1576 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1577 char __user *user_buf,
1578 size_t count, loff_t *ppos)
1579 {
1580 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1581 int pos = 0;
1582 char *buf;
1583 int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1584 ssize_t ret;
1585 struct statistics_bt_activity *bt, *accum_bt;
1586
1587 if (!iwl_is_alive(priv->shrd))
1588 return -EAGAIN;
1589
1590 if (!priv->bt_enable_flag)
1591 return -EINVAL;
1592
1593 /* make request to uCode to retrieve statistics information */
1594 mutex_lock(&priv->shrd->mutex);
1595 ret = iwl_send_statistics_request(priv, CMD_SYNC, false);
1596 mutex_unlock(&priv->shrd->mutex);
1597
1598 if (ret) {
1599 IWL_ERR(priv,
1600 "Error sending statistics request: %zd\n", ret);
1601 return -EAGAIN;
1602 }
1603 buf = kzalloc(bufsz, GFP_KERNEL);
1604 if (!buf) {
1605 IWL_ERR(priv, "Can not allocate Buffer\n");
1606 return -ENOMEM;
1607 }
1608
1609 /*
1610 * the statistic information display here is based on
1611 * the last statistics notification from uCode
1612 * might not reflect the current uCode activity
1613 */
1614 bt = &priv->statistics.bt_activity;
1615 accum_bt = &priv->accum_stats.bt_activity;
1616
1617 pos += iwl_statistics_flag(priv, buf, bufsz);
1618 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1619 pos += scnprintf(buf + pos, bufsz - pos,
1620 "\t\t\tcurrent\t\t\taccumulative\n");
1621 pos += scnprintf(buf + pos, bufsz - pos,
1622 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1623 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1624 accum_bt->hi_priority_tx_req_cnt);
1625 pos += scnprintf(buf + pos, bufsz - pos,
1626 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1627 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1628 accum_bt->hi_priority_tx_denied_cnt);
1629 pos += scnprintf(buf + pos, bufsz - pos,
1630 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1631 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1632 accum_bt->lo_priority_tx_req_cnt);
1633 pos += scnprintf(buf + pos, bufsz - pos,
1634 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1635 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1636 accum_bt->lo_priority_tx_denied_cnt);
1637 pos += scnprintf(buf + pos, bufsz - pos,
1638 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1639 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1640 accum_bt->hi_priority_rx_req_cnt);
1641 pos += scnprintf(buf + pos, bufsz - pos,
1642 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1643 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1644 accum_bt->hi_priority_rx_denied_cnt);
1645 pos += scnprintf(buf + pos, bufsz - pos,
1646 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1647 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1648 accum_bt->lo_priority_rx_req_cnt);
1649 pos += scnprintf(buf + pos, bufsz - pos,
1650 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1651 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1652 accum_bt->lo_priority_rx_denied_cnt);
1653
1654 pos += scnprintf(buf + pos, bufsz - pos,
1655 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1656 le32_to_cpu(priv->statistics.num_bt_kills),
1657 priv->statistics.accum_num_bt_kills);
1658
1659 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1660 kfree(buf);
1661 return ret;
1662 }
1663
1664 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1665 char __user *user_buf,
1666 size_t count, loff_t *ppos)
1667 {
1668 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1669 int pos = 0;
1670 char *buf;
1671 int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1672 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1673 ssize_t ret;
1674
1675 if (!iwl_is_alive(priv->shrd))
1676 return -EAGAIN;
1677
1678 buf = kzalloc(bufsz, GFP_KERNEL);
1679 if (!buf) {
1680 IWL_ERR(priv, "Can not allocate Buffer\n");
1681 return -ENOMEM;
1682 }
1683
1684 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1685 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1686 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1687 priv->reply_tx_stats.pp_delay);
1688 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1689 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1690 priv->reply_tx_stats.pp_few_bytes);
1691 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1692 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1693 priv->reply_tx_stats.pp_bt_prio);
1694 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1695 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1696 priv->reply_tx_stats.pp_quiet_period);
1697 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1698 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1699 priv->reply_tx_stats.pp_calc_ttak);
1700 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1701 iwl_get_tx_fail_reason(
1702 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1703 priv->reply_tx_stats.int_crossed_retry);
1704 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1705 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1706 priv->reply_tx_stats.short_limit);
1707 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1708 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1709 priv->reply_tx_stats.long_limit);
1710 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1711 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1712 priv->reply_tx_stats.fifo_underrun);
1713 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1714 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1715 priv->reply_tx_stats.drain_flow);
1716 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1717 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1718 priv->reply_tx_stats.rfkill_flush);
1719 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1720 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1721 priv->reply_tx_stats.life_expire);
1722 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1723 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1724 priv->reply_tx_stats.dest_ps);
1725 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1726 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1727 priv->reply_tx_stats.host_abort);
1728 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1729 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1730 priv->reply_tx_stats.pp_delay);
1731 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1732 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1733 priv->reply_tx_stats.sta_invalid);
1734 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1735 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1736 priv->reply_tx_stats.frag_drop);
1737 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1738 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1739 priv->reply_tx_stats.tid_disable);
1740 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1741 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1742 priv->reply_tx_stats.fifo_flush);
1743 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1744 iwl_get_tx_fail_reason(
1745 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1746 priv->reply_tx_stats.insuff_cf_poll);
1747 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1748 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1749 priv->reply_tx_stats.fail_hw_drop);
1750 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1751 iwl_get_tx_fail_reason(
1752 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1753 priv->reply_tx_stats.sta_color_mismatch);
1754 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1755 priv->reply_tx_stats.unknown);
1756
1757 pos += scnprintf(buf + pos, bufsz - pos,
1758 "\nStatistics_Agg_TX_Error:\n");
1759
1760 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1761 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1762 priv->reply_agg_tx_stats.underrun);
1763 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1764 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1765 priv->reply_agg_tx_stats.bt_prio);
1766 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1767 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1768 priv->reply_agg_tx_stats.few_bytes);
1769 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1770 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1771 priv->reply_agg_tx_stats.abort);
1772 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1773 iwl_get_agg_tx_fail_reason(
1774 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1775 priv->reply_agg_tx_stats.last_sent_ttl);
1776 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1777 iwl_get_agg_tx_fail_reason(
1778 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1779 priv->reply_agg_tx_stats.last_sent_try);
1780 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1781 iwl_get_agg_tx_fail_reason(
1782 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1783 priv->reply_agg_tx_stats.last_sent_bt_kill);
1784 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1785 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1786 priv->reply_agg_tx_stats.scd_query);
1787 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1788 iwl_get_agg_tx_fail_reason(
1789 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1790 priv->reply_agg_tx_stats.bad_crc32);
1791 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1792 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1793 priv->reply_agg_tx_stats.response);
1794 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1795 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1796 priv->reply_agg_tx_stats.dump_tx);
1797 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1798 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1799 priv->reply_agg_tx_stats.delay_tx);
1800 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1801 priv->reply_agg_tx_stats.unknown);
1802
1803 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1804 kfree(buf);
1805 return ret;
1806 }
1807
1808 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1809 char __user *user_buf,
1810 size_t count, loff_t *ppos) {
1811
1812 struct iwl_priv *priv = file->private_data;
1813 int pos = 0;
1814 int cnt = 0;
1815 char *buf;
1816 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1817 ssize_t ret;
1818 struct iwl_sensitivity_data *data;
1819
1820 data = &priv->sensitivity_data;
1821 buf = kzalloc(bufsz, GFP_KERNEL);
1822 if (!buf) {
1823 IWL_ERR(priv, "Can not allocate Buffer\n");
1824 return -ENOMEM;
1825 }
1826
1827 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1828 data->auto_corr_ofdm);
1829 pos += scnprintf(buf + pos, bufsz - pos,
1830 "auto_corr_ofdm_mrc:\t\t %u\n",
1831 data->auto_corr_ofdm_mrc);
1832 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1833 data->auto_corr_ofdm_x1);
1834 pos += scnprintf(buf + pos, bufsz - pos,
1835 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1836 data->auto_corr_ofdm_mrc_x1);
1837 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1838 data->auto_corr_cck);
1839 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1840 data->auto_corr_cck_mrc);
1841 pos += scnprintf(buf + pos, bufsz - pos,
1842 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1843 data->last_bad_plcp_cnt_ofdm);
1844 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1845 data->last_fa_cnt_ofdm);
1846 pos += scnprintf(buf + pos, bufsz - pos,
1847 "last_bad_plcp_cnt_cck:\t\t %u\n",
1848 data->last_bad_plcp_cnt_cck);
1849 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1850 data->last_fa_cnt_cck);
1851 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1852 data->nrg_curr_state);
1853 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1854 data->nrg_prev_state);
1855 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1856 for (cnt = 0; cnt < 10; cnt++) {
1857 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1858 data->nrg_value[cnt]);
1859 }
1860 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1861 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1862 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1863 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1864 data->nrg_silence_rssi[cnt]);
1865 }
1866 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1867 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1868 data->nrg_silence_ref);
1869 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1870 data->nrg_energy_idx);
1871 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1872 data->nrg_silence_idx);
1873 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1874 data->nrg_th_cck);
1875 pos += scnprintf(buf + pos, bufsz - pos,
1876 "nrg_auto_corr_silence_diff:\t %u\n",
1877 data->nrg_auto_corr_silence_diff);
1878 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1879 data->num_in_cck_no_fa);
1880 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1881 data->nrg_th_ofdm);
1882
1883 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1884 kfree(buf);
1885 return ret;
1886 }
1887
1888
1889 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1890 char __user *user_buf,
1891 size_t count, loff_t *ppos) {
1892
1893 struct iwl_priv *priv = file->private_data;
1894 int pos = 0;
1895 int cnt = 0;
1896 char *buf;
1897 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1898 ssize_t ret;
1899 struct iwl_chain_noise_data *data;
1900
1901 data = &priv->chain_noise_data;
1902 buf = kzalloc(bufsz, GFP_KERNEL);
1903 if (!buf) {
1904 IWL_ERR(priv, "Can not allocate Buffer\n");
1905 return -ENOMEM;
1906 }
1907
1908 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1909 data->active_chains);
1910 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1911 data->chain_noise_a);
1912 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1913 data->chain_noise_b);
1914 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1915 data->chain_noise_c);
1916 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1917 data->chain_signal_a);
1918 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1919 data->chain_signal_b);
1920 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1921 data->chain_signal_c);
1922 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1923 data->beacon_count);
1924
1925 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1926 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1927 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1928 data->disconn_array[cnt]);
1929 }
1930 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1931 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1932 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1933 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1934 data->delta_gain_code[cnt]);
1935 }
1936 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1937 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1938 data->radio_write);
1939 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1940 data->state);
1941
1942 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1943 kfree(buf);
1944 return ret;
1945 }
1946
1947 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1948 char __user *user_buf,
1949 size_t count, loff_t *ppos)
1950 {
1951 struct iwl_priv *priv = file->private_data;
1952 char buf[60];
1953 int pos = 0;
1954 const size_t bufsz = sizeof(buf);
1955 u32 pwrsave_status;
1956
1957 pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1958 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1959
1960 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1961 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1962 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1963 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1964 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1965 "error");
1966
1967 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1968 }
1969
1970 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1971 const char __user *user_buf,
1972 size_t count, loff_t *ppos)
1973 {
1974 struct iwl_priv *priv = file->private_data;
1975 char buf[8];
1976 int buf_size;
1977 int clear;
1978
1979 memset(buf, 0, sizeof(buf));
1980 buf_size = min(count, sizeof(buf) - 1);
1981 if (copy_from_user(buf, user_buf, buf_size))
1982 return -EFAULT;
1983 if (sscanf(buf, "%d", &clear) != 1)
1984 return -EFAULT;
1985
1986 /* make request to uCode to retrieve statistics information */
1987 mutex_lock(&priv->shrd->mutex);
1988 iwl_send_statistics_request(priv, CMD_SYNC, true);
1989 mutex_unlock(&priv->shrd->mutex);
1990
1991 return count;
1992 }
1993
1994 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1995 const char __user *user_buf,
1996 size_t count, loff_t *ppos)
1997 {
1998 struct iwl_priv *priv = file->private_data;
1999 char buf[8];
2000 int buf_size;
2001 int csr;
2002
2003 memset(buf, 0, sizeof(buf));
2004 buf_size = min(count, sizeof(buf) - 1);
2005 if (copy_from_user(buf, user_buf, buf_size))
2006 return -EFAULT;
2007 if (sscanf(buf, "%d", &csr) != 1)
2008 return -EFAULT;
2009
2010 iwl_dump_csr(priv);
2011
2012 return count;
2013 }
2014
2015 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
2016 char __user *user_buf,
2017 size_t count, loff_t *ppos) {
2018
2019 struct iwl_priv *priv = file->private_data;
2020 int pos = 0;
2021 char buf[128];
2022 const size_t bufsz = sizeof(buf);
2023
2024 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
2025 priv->event_log.ucode_trace ? "On" : "Off");
2026 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
2027 priv->event_log.non_wraps_count);
2028 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
2029 priv->event_log.wraps_once_count);
2030 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
2031 priv->event_log.wraps_more_count);
2032
2033 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2034 }
2035
2036 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
2037 const char __user *user_buf,
2038 size_t count, loff_t *ppos)
2039 {
2040 struct iwl_priv *priv = file->private_data;
2041 char buf[8];
2042 int buf_size;
2043 int trace;
2044
2045 memset(buf, 0, sizeof(buf));
2046 buf_size = min(count, sizeof(buf) - 1);
2047 if (copy_from_user(buf, user_buf, buf_size))
2048 return -EFAULT;
2049 if (sscanf(buf, "%d", &trace) != 1)
2050 return -EFAULT;
2051
2052 if (trace) {
2053 priv->event_log.ucode_trace = true;
2054 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
2055 mod_timer(&priv->ucode_trace,
2056 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
2057 } else {
2058 priv->event_log.ucode_trace = false;
2059 del_timer_sync(&priv->ucode_trace);
2060 }
2061
2062 return count;
2063 }
2064
2065 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
2066 char __user *user_buf,
2067 size_t count, loff_t *ppos) {
2068
2069 struct iwl_priv *priv = file->private_data;
2070 int len = 0;
2071 char buf[20];
2072
2073 len = sprintf(buf, "0x%04X\n",
2074 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
2075 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2076 }
2077
2078 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
2079 char __user *user_buf,
2080 size_t count, loff_t *ppos) {
2081
2082 struct iwl_priv *priv = file->private_data;
2083 int len = 0;
2084 char buf[20];
2085
2086 len = sprintf(buf, "0x%04X\n",
2087 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
2088 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2089 }
2090
2091 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
2092 char __user *user_buf,
2093 size_t count, loff_t *ppos)
2094 {
2095 struct iwl_priv *priv = file->private_data;
2096 char *buf;
2097 int pos = 0;
2098 ssize_t ret = -EFAULT;
2099
2100 ret = pos = iwl_dump_fh(priv, &buf, true);
2101 if (buf) {
2102 ret = simple_read_from_buffer(user_buf,
2103 count, ppos, buf, pos);
2104 kfree(buf);
2105 }
2106
2107 return ret;
2108 }
2109
2110 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
2111 char __user *user_buf,
2112 size_t count, loff_t *ppos) {
2113
2114 struct iwl_priv *priv = file->private_data;
2115 int pos = 0;
2116 char buf[12];
2117 const size_t bufsz = sizeof(buf);
2118
2119 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
2120 priv->missed_beacon_threshold);
2121
2122 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2123 }
2124
2125 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
2126 const char __user *user_buf,
2127 size_t count, loff_t *ppos)
2128 {
2129 struct iwl_priv *priv = file->private_data;
2130 char buf[8];
2131 int buf_size;
2132 int missed;
2133
2134 memset(buf, 0, sizeof(buf));
2135 buf_size = min(count, sizeof(buf) - 1);
2136 if (copy_from_user(buf, user_buf, buf_size))
2137 return -EFAULT;
2138 if (sscanf(buf, "%d", &missed) != 1)
2139 return -EINVAL;
2140
2141 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2142 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2143 priv->missed_beacon_threshold =
2144 IWL_MISSED_BEACON_THRESHOLD_DEF;
2145 else
2146 priv->missed_beacon_threshold = missed;
2147
2148 return count;
2149 }
2150
2151 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2152 char __user *user_buf,
2153 size_t count, loff_t *ppos) {
2154
2155 struct iwl_priv *priv = file->private_data;
2156 int pos = 0;
2157 char buf[12];
2158 const size_t bufsz = sizeof(buf);
2159
2160 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2161 priv->cfg->base_params->plcp_delta_threshold);
2162
2163 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2164 }
2165
2166 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2167 const char __user *user_buf,
2168 size_t count, loff_t *ppos) {
2169
2170 struct iwl_priv *priv = file->private_data;
2171 char buf[8];
2172 int buf_size;
2173 int plcp;
2174
2175 memset(buf, 0, sizeof(buf));
2176 buf_size = min(count, sizeof(buf) - 1);
2177 if (copy_from_user(buf, user_buf, buf_size))
2178 return -EFAULT;
2179 if (sscanf(buf, "%d", &plcp) != 1)
2180 return -EINVAL;
2181 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2182 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2183 priv->cfg->base_params->plcp_delta_threshold =
2184 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
2185 else
2186 priv->cfg->base_params->plcp_delta_threshold = plcp;
2187 return count;
2188 }
2189
2190 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
2191 char __user *user_buf,
2192 size_t count, loff_t *ppos) {
2193
2194 struct iwl_priv *priv = file->private_data;
2195 int i, pos = 0;
2196 char buf[300];
2197 const size_t bufsz = sizeof(buf);
2198 struct iwl_force_reset *force_reset;
2199
2200 for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
2201 force_reset = &priv->force_reset[i];
2202 pos += scnprintf(buf + pos, bufsz - pos,
2203 "Force reset method %d\n", i);
2204 pos += scnprintf(buf + pos, bufsz - pos,
2205 "\tnumber of reset request: %d\n",
2206 force_reset->reset_request_count);
2207 pos += scnprintf(buf + pos, bufsz - pos,
2208 "\tnumber of reset request success: %d\n",
2209 force_reset->reset_success_count);
2210 pos += scnprintf(buf + pos, bufsz - pos,
2211 "\tnumber of reset request reject: %d\n",
2212 force_reset->reset_reject_count);
2213 pos += scnprintf(buf + pos, bufsz - pos,
2214 "\treset duration: %lu\n",
2215 force_reset->reset_duration);
2216 }
2217 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2218 }
2219
2220 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
2221 const char __user *user_buf,
2222 size_t count, loff_t *ppos) {
2223
2224 struct iwl_priv *priv = file->private_data;
2225 char buf[8];
2226 int buf_size;
2227 int reset, ret;
2228
2229 memset(buf, 0, sizeof(buf));
2230 buf_size = min(count, sizeof(buf) - 1);
2231 if (copy_from_user(buf, user_buf, buf_size))
2232 return -EFAULT;
2233 if (sscanf(buf, "%d", &reset) != 1)
2234 return -EINVAL;
2235 switch (reset) {
2236 case IWL_RF_RESET:
2237 case IWL_FW_RESET:
2238 ret = iwl_force_reset(priv, reset, true);
2239 break;
2240 default:
2241 return -EINVAL;
2242 }
2243 return ret ? ret : count;
2244 }
2245
2246 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2247 const char __user *user_buf,
2248 size_t count, loff_t *ppos) {
2249
2250 struct iwl_priv *priv = file->private_data;
2251 char buf[8];
2252 int buf_size;
2253 int flush;
2254
2255 memset(buf, 0, sizeof(buf));
2256 buf_size = min(count, sizeof(buf) - 1);
2257 if (copy_from_user(buf, user_buf, buf_size))
2258 return -EFAULT;
2259 if (sscanf(buf, "%d", &flush) != 1)
2260 return -EINVAL;
2261
2262 if (iwl_is_rfkill(priv->shrd))
2263 return -EFAULT;
2264
2265 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
2266
2267 return count;
2268 }
2269
2270 static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
2271 const char __user *user_buf,
2272 size_t count, loff_t *ppos) {
2273
2274 struct iwl_priv *priv = file->private_data;
2275 char buf[8];
2276 int buf_size;
2277 int timeout;
2278
2279 memset(buf, 0, sizeof(buf));
2280 buf_size = min(count, sizeof(buf) - 1);
2281 if (copy_from_user(buf, user_buf, buf_size))
2282 return -EFAULT;
2283 if (sscanf(buf, "%d", &timeout) != 1)
2284 return -EINVAL;
2285 if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
2286 timeout = IWL_DEF_WD_TIMEOUT;
2287
2288 priv->cfg->base_params->wd_timeout = timeout;
2289 iwl_setup_watchdog(priv);
2290 return count;
2291 }
2292
2293 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2294 char __user *user_buf,
2295 size_t count, loff_t *ppos) {
2296
2297 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2298 int pos = 0;
2299 char buf[200];
2300 const size_t bufsz = sizeof(buf);
2301
2302 if (!priv->bt_enable_flag) {
2303 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2304 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2305 }
2306 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2307 priv->bt_enable_flag);
2308 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2309 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2310 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2311 "last traffic notif: %d\n",
2312 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2313 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2314 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2315 priv->bt_ch_announce, priv->kill_ack_mask,
2316 priv->kill_cts_mask);
2317
2318 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2319 switch (priv->bt_traffic_load) {
2320 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2321 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2322 break;
2323 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2324 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2325 break;
2326 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2327 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2328 break;
2329 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2330 default:
2331 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2332 break;
2333 }
2334
2335 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2336 }
2337
2338 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2339 char __user *user_buf,
2340 size_t count, loff_t *ppos)
2341 {
2342 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2343
2344 int pos = 0;
2345 char buf[40];
2346 const size_t bufsz = sizeof(buf);
2347
2348 if (priv->cfg->ht_params)
2349 pos += scnprintf(buf + pos, bufsz - pos,
2350 "use %s for aggregation\n",
2351 (priv->cfg->ht_params->use_rts_for_aggregation) ?
2352 "rts/cts" : "cts-to-self");
2353 else
2354 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2355
2356 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2357 }
2358
2359 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2360 const char __user *user_buf,
2361 size_t count, loff_t *ppos) {
2362
2363 struct iwl_priv *priv = file->private_data;
2364 char buf[8];
2365 int buf_size;
2366 int rts;
2367
2368 if (!priv->cfg->ht_params)
2369 return -EINVAL;
2370
2371 memset(buf, 0, sizeof(buf));
2372 buf_size = min(count, sizeof(buf) - 1);
2373 if (copy_from_user(buf, user_buf, buf_size))
2374 return -EFAULT;
2375 if (sscanf(buf, "%d", &rts) != 1)
2376 return -EINVAL;
2377 if (rts)
2378 priv->cfg->ht_params->use_rts_for_aggregation = true;
2379 else
2380 priv->cfg->ht_params->use_rts_for_aggregation = false;
2381 return count;
2382 }
2383
2384 DEBUGFS_READ_FILE_OPS(rx_statistics);
2385 DEBUGFS_READ_FILE_OPS(tx_statistics);
2386 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2387 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2388 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2389 DEBUGFS_READ_FILE_OPS(sensitivity);
2390 DEBUGFS_READ_FILE_OPS(chain_noise);
2391 DEBUGFS_READ_FILE_OPS(power_save_status);
2392 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2393 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2394 DEBUGFS_WRITE_FILE_OPS(csr);
2395 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2396 DEBUGFS_READ_FILE_OPS(fh_reg);
2397 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2398 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2399 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
2400 DEBUGFS_READ_FILE_OPS(rxon_flags);
2401 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2402 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2403 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2404 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
2405 DEBUGFS_READ_FILE_OPS(bt_traffic);
2406 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2407 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2408
2409 /*
2410 * Create the debugfs files and directories
2411 *
2412 */
2413 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2414 {
2415 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2416 struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2417
2418 dir_drv = debugfs_create_dir(name, phyd);
2419 if (!dir_drv)
2420 return -ENOMEM;
2421
2422 priv->debugfs_dir = dir_drv;
2423
2424 dir_data = debugfs_create_dir("data", dir_drv);
2425 if (!dir_data)
2426 goto err;
2427 dir_rf = debugfs_create_dir("rf", dir_drv);
2428 if (!dir_rf)
2429 goto err;
2430 dir_debug = debugfs_create_dir("debug", dir_drv);
2431 if (!dir_debug)
2432 goto err;
2433
2434 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2435 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2436 DEBUGFS_ADD_FILE(wowlan_sram, dir_data, S_IRUSR);
2437 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2438 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2439 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2440 DEBUGFS_ADD_FILE(rx_handlers, dir_data, S_IWUSR | S_IRUSR);
2441 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2442 DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2443 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2444 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2445 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2446 DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
2447 DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
2448 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2449 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2450 DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
2451 DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
2452 DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
2453 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2454 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2455 DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
2456 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2457 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2458 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2459 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
2460 DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
2461
2462 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2463 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2464 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2465 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
2466 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
2467 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
2468 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
2469 DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
2470 if (iwl_advanced_bt_coexist(priv))
2471 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
2472 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
2473 &priv->disable_sens_cal);
2474 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
2475 &priv->disable_chain_noise_cal);
2476
2477 if (iwl_trans_dbgfs_register(trans(priv), dir_debug))
2478 goto err;
2479 return 0;
2480
2481 err:
2482 IWL_ERR(priv, "Can't create the debugfs directory\n");
2483 iwl_dbgfs_unregister(priv);
2484 return -ENOMEM;
2485 }
2486
2487 /**
2488 * Remove the debugfs files and directories
2489 *
2490 */
2491 void iwl_dbgfs_unregister(struct iwl_priv *priv)
2492 {
2493 if (!priv->debugfs_dir)
2494 return;
2495
2496 debugfs_remove_recursive(priv->debugfs_dir);
2497 priv->debugfs_dir = NULL;
2498 }
2499
2500
2501
Linux kernel - Deliverables
This page took 0.119299 seconds and 5 git commands to generate.