1 // SPDX-License-Identifier: GPL-2.0-only
2 /******************************************************************************
3 *
4 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
5 * Copyright (C) 2018 Intel Corporation
6 *****************************************************************************/
7
8 #include <linux/slab.h>
9 #include <linux/kernel.h>
10 #include <linux/module.h>
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include <net/mac80211.h>
14
15 #include "iwl-debug.h"
16 #include "iwl-trans.h"
17 #include "iwl-io.h"
18 #include "dev.h"
19 #include "agn.h"
20
21 /* create and remove of files */
22 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
23 debugfs_create_file(#name, mode, parent, priv, \
24 &iwl_dbgfs_##name##_ops); \
25 } while (0)
26
27 /* file operation */
28 #define DEBUGFS_READ_FILE_OPS(name) \
29 static const struct file_operations iwl_dbgfs_##name##_ops = { \
30 .read = iwl_dbgfs_##name##_read, \
31 .open = simple_open, \
32 .llseek = generic_file_llseek, \
33 };
34
35 #define DEBUGFS_WRITE_FILE_OPS(name) \
36 static const struct file_operations iwl_dbgfs_##name##_ops = { \
37 .write = iwl_dbgfs_##name##_write, \
38 .open = simple_open, \
39 .llseek = generic_file_llseek, \
40 };
41
42
43 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
44 static const struct file_operations iwl_dbgfs_##name##_ops = { \
45 .write = iwl_dbgfs_##name##_write, \
46 .read = iwl_dbgfs_##name##_read, \
47 .open = simple_open, \
48 .llseek = generic_file_llseek, \
49 };
50
iwl_dbgfs_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)51 static ssize_t iwl_dbgfs_sram_read(struct file *file,
52 char __user *user_buf,
53 size_t count, loff_t *ppos)
54 {
55 u32 val = 0;
56 char *buf;
57 ssize_t ret;
58 int i = 0;
59 bool device_format = false;
60 int offset = 0;
61 int len = 0;
62 int pos = 0;
63 int sram;
64 struct iwl_priv *priv = file->private_data;
65 const struct fw_img *img;
66 size_t bufsz;
67
68 if (!iwl_is_ready_rf(priv))
69 return -EAGAIN;
70
71 /* default is to dump the entire data segment */
72 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
73 priv->dbgfs_sram_offset = 0x800000;
74 if (!priv->ucode_loaded)
75 return -EINVAL;
76 img = &priv->fw->img[priv->cur_ucode];
77 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
78 }
79 len = priv->dbgfs_sram_len;
80
81 if (len == -4) {
82 device_format = true;
83 len = 4;
84 }
85
86 bufsz = 50 + len * 4;
87 buf = kmalloc(bufsz, GFP_KERNEL);
88 if (!buf)
89 return -ENOMEM;
90
91 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
92 len);
93 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
94 priv->dbgfs_sram_offset);
95
96 /* adjust sram address since reads are only on even u32 boundaries */
97 offset = priv->dbgfs_sram_offset & 0x3;
98 sram = priv->dbgfs_sram_offset & ~0x3;
99
100 /* read the first u32 from sram */
101 val = iwl_trans_read_mem32(priv->trans, sram);
102
103 for (; len; len--) {
104 /* put the address at the start of every line */
105 if (i == 0)
106 pos += scnprintf(buf + pos, bufsz - pos,
107 "%08X: ", sram + offset);
108
109 if (device_format)
110 pos += scnprintf(buf + pos, bufsz - pos,
111 "%02x", (val >> (8 * (3 - offset))) & 0xff);
112 else
113 pos += scnprintf(buf + pos, bufsz - pos,
114 "%02x ", (val >> (8 * offset)) & 0xff);
115
116 /* if all bytes processed, read the next u32 from sram */
117 if (++offset == 4) {
118 sram += 4;
119 offset = 0;
120 val = iwl_trans_read_mem32(priv->trans, sram);
121 }
122
123 /* put in extra spaces and split lines for human readability */
124 if (++i == 16) {
125 i = 0;
126 pos += scnprintf(buf + pos, bufsz - pos, "\n");
127 } else if (!(i & 7)) {
128 pos += scnprintf(buf + pos, bufsz - pos, " ");
129 } else if (!(i & 3)) {
130 pos += scnprintf(buf + pos, bufsz - pos, " ");
131 }
132 }
133 if (i)
134 pos += scnprintf(buf + pos, bufsz - pos, "\n");
135
136 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
137 kfree(buf);
138 return ret;
139 }
140
iwl_dbgfs_sram_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)141 static ssize_t iwl_dbgfs_sram_write(struct file *file,
142 const char __user *user_buf,
143 size_t count, loff_t *ppos)
144 {
145 struct iwl_priv *priv = file->private_data;
146 char buf[64];
147 int buf_size;
148 u32 offset, len;
149
150 memset(buf, 0, sizeof(buf));
151 buf_size = min(count, sizeof(buf) - 1);
152 if (copy_from_user(buf, user_buf, buf_size))
153 return -EFAULT;
154
155 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
156 priv->dbgfs_sram_offset = offset;
157 priv->dbgfs_sram_len = len;
158 } else if (sscanf(buf, "%x", &offset) == 1) {
159 priv->dbgfs_sram_offset = offset;
160 priv->dbgfs_sram_len = -4;
161 } else {
162 priv->dbgfs_sram_offset = 0;
163 priv->dbgfs_sram_len = 0;
164 }
165
166 return count;
167 }
168
iwl_dbgfs_wowlan_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)169 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
170 char __user *user_buf,
171 size_t count, loff_t *ppos)
172 {
173 struct iwl_priv *priv = file->private_data;
174 const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
175
176 if (!priv->wowlan_sram)
177 return -ENODATA;
178
179 return simple_read_from_buffer(user_buf, count, ppos,
180 priv->wowlan_sram,
181 img->sec[IWL_UCODE_SECTION_DATA].len);
182 }
iwl_dbgfs_stations_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)183 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
184 size_t count, loff_t *ppos)
185 {
186 struct iwl_priv *priv = file->private_data;
187 struct iwl_station_entry *station;
188 struct iwl_tid_data *tid_data;
189 char *buf;
190 int i, j, pos = 0;
191 ssize_t ret;
192 /* Add 30 for initial string */
193 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
194
195 buf = kmalloc(bufsz, GFP_KERNEL);
196 if (!buf)
197 return -ENOMEM;
198
199 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
200 priv->num_stations);
201
202 for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
203 station = &priv->stations[i];
204 if (!station->used)
205 continue;
206 pos += scnprintf(buf + pos, bufsz - pos,
207 "station %d - addr: %pM, flags: %#x\n",
208 i, station->sta.sta.addr,
209 station->sta.station_flags_msk);
210 pos += scnprintf(buf + pos, bufsz - pos,
211 "TID seqno next_rclmd "
212 "rate_n_flags state txq\n");
213
214 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
215 tid_data = &priv->tid_data[i][j];
216 pos += scnprintf(buf + pos, bufsz - pos,
217 "%d: 0x%.4x 0x%.4x 0x%.8x "
218 "%d %.2d",
219 j, tid_data->seq_number,
220 tid_data->next_reclaimed,
221 tid_data->agg.rate_n_flags,
222 tid_data->agg.state,
223 tid_data->agg.txq_id);
224
225 if (tid_data->agg.wait_for_ba)
226 pos += scnprintf(buf + pos, bufsz - pos,
227 " - waitforba");
228 pos += scnprintf(buf + pos, bufsz - pos, "\n");
229 }
230
231 pos += scnprintf(buf + pos, bufsz - pos, "\n");
232 }
233
234 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
235 kfree(buf);
236 return ret;
237 }
238
iwl_dbgfs_nvm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)239 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
240 char __user *user_buf,
241 size_t count,
242 loff_t *ppos)
243 {
244 ssize_t ret;
245 struct iwl_priv *priv = file->private_data;
246 int pos = 0, ofs = 0, buf_size = 0;
247 const u8 *ptr;
248 char *buf;
249 u16 nvm_ver;
250 size_t eeprom_len = priv->eeprom_blob_size;
251 buf_size = 4 * eeprom_len + 256;
252
253 if (eeprom_len % 16)
254 return -ENODATA;
255
256 ptr = priv->eeprom_blob;
257 if (!ptr)
258 return -ENOMEM;
259
260 /* 4 characters for byte 0xYY */
261 buf = kzalloc(buf_size, GFP_KERNEL);
262 if (!buf)
263 return -ENOMEM;
264
265 nvm_ver = priv->nvm_data->nvm_version;
266 pos += scnprintf(buf + pos, buf_size - pos,
267 "NVM version: 0x%x\n", nvm_ver);
268 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
269 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n",
270 ofs, ptr + ofs);
271 }
272
273 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
274 kfree(buf);
275 return ret;
276 }
277
iwl_dbgfs_channels_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)278 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
279 size_t count, loff_t *ppos)
280 {
281 struct iwl_priv *priv = file->private_data;
282 struct ieee80211_channel *channels = NULL;
283 const struct ieee80211_supported_band *supp_band = NULL;
284 int pos = 0, i, bufsz = PAGE_SIZE;
285 char *buf;
286 ssize_t ret;
287
288 buf = kzalloc(bufsz, GFP_KERNEL);
289 if (!buf)
290 return -ENOMEM;
291
292 supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ);
293 if (supp_band) {
294 channels = supp_band->channels;
295
296 pos += scnprintf(buf + pos, bufsz - pos,
297 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
298 supp_band->n_channels);
299
300 for (i = 0; i < supp_band->n_channels; i++)
301 pos += scnprintf(buf + pos, bufsz - pos,
302 "%d: %ddBm: BSS%s%s, %s.\n",
303 channels[i].hw_value,
304 channels[i].max_power,
305 channels[i].flags & IEEE80211_CHAN_RADAR ?
306 " (IEEE 802.11h required)" : "",
307 ((channels[i].flags & IEEE80211_CHAN_NO_IR)
308 || (channels[i].flags &
309 IEEE80211_CHAN_RADAR)) ? "" :
310 ", IBSS",
311 channels[i].flags &
312 IEEE80211_CHAN_NO_IR ?
313 "passive only" : "active/passive");
314 }
315 supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ);
316 if (supp_band) {
317 channels = supp_band->channels;
318
319 pos += scnprintf(buf + pos, bufsz - pos,
320 "Displaying %d channels in 5.2GHz band (802.11a)\n",
321 supp_band->n_channels);
322
323 for (i = 0; i < supp_band->n_channels; i++)
324 pos += scnprintf(buf + pos, bufsz - pos,
325 "%d: %ddBm: BSS%s%s, %s.\n",
326 channels[i].hw_value,
327 channels[i].max_power,
328 channels[i].flags & IEEE80211_CHAN_RADAR ?
329 " (IEEE 802.11h required)" : "",
330 ((channels[i].flags & IEEE80211_CHAN_NO_IR)
331 || (channels[i].flags &
332 IEEE80211_CHAN_RADAR)) ? "" :
333 ", IBSS",
334 channels[i].flags &
335 IEEE80211_CHAN_NO_IR ?
336 "passive only" : "active/passive");
337 }
338 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
339 kfree(buf);
340 return ret;
341 }
342
iwl_dbgfs_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)343 static ssize_t iwl_dbgfs_status_read(struct file *file,
344 char __user *user_buf,
345 size_t count, loff_t *ppos) {
346
347 struct iwl_priv *priv = file->private_data;
348 char buf[512];
349 int pos = 0;
350 const size_t bufsz = sizeof(buf);
351
352 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
353 test_bit(STATUS_RF_KILL_HW, &priv->status));
354 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
355 test_bit(STATUS_CT_KILL, &priv->status));
356 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
357 test_bit(STATUS_ALIVE, &priv->status));
358 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
359 test_bit(STATUS_READY, &priv->status));
360 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
361 test_bit(STATUS_EXIT_PENDING, &priv->status));
362 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
363 test_bit(STATUS_STATISTICS, &priv->status));
364 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
365 test_bit(STATUS_SCANNING, &priv->status));
366 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
367 test_bit(STATUS_SCAN_ABORTING, &priv->status));
368 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
369 test_bit(STATUS_SCAN_HW, &priv->status));
370 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
371 test_bit(STATUS_POWER_PMI, &priv->status));
372 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
373 test_bit(STATUS_FW_ERROR, &priv->status));
374 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
375 }
376
iwl_dbgfs_rx_handlers_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)377 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
378 char __user *user_buf,
379 size_t count, loff_t *ppos) {
380
381 struct iwl_priv *priv = file->private_data;
382
383 int pos = 0;
384 int cnt = 0;
385 char *buf;
386 int bufsz = 24 * 64; /* 24 items * 64 char per item */
387 ssize_t ret;
388
389 buf = kzalloc(bufsz, GFP_KERNEL);
390 if (!buf)
391 return -ENOMEM;
392
393 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
394 if (priv->rx_handlers_stats[cnt] > 0)
395 pos += scnprintf(buf + pos, bufsz - pos,
396 "\tRx handler[%36s]:\t\t %u\n",
397 iwl_get_cmd_string(priv->trans, (u32)cnt),
398 priv->rx_handlers_stats[cnt]);
399 }
400
401 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
402 kfree(buf);
403 return ret;
404 }
405
iwl_dbgfs_rx_handlers_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)406 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
407 const char __user *user_buf,
408 size_t count, loff_t *ppos)
409 {
410 struct iwl_priv *priv = file->private_data;
411
412 char buf[8];
413 int buf_size;
414 u32 reset_flag;
415
416 memset(buf, 0, sizeof(buf));
417 buf_size = min(count, sizeof(buf) - 1);
418 if (copy_from_user(buf, user_buf, buf_size))
419 return -EFAULT;
420 if (sscanf(buf, "%x", &reset_flag) != 1)
421 return -EFAULT;
422 if (reset_flag == 0)
423 memset(&priv->rx_handlers_stats[0], 0,
424 sizeof(priv->rx_handlers_stats));
425
426 return count;
427 }
428
iwl_dbgfs_qos_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)429 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
430 size_t count, loff_t *ppos)
431 {
432 struct iwl_priv *priv = file->private_data;
433 struct iwl_rxon_context *ctx;
434 int pos = 0, i;
435 char buf[256 * NUM_IWL_RXON_CTX];
436 const size_t bufsz = sizeof(buf);
437
438 for_each_context(priv, ctx) {
439 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
440 ctx->ctxid);
441 for (i = 0; i < AC_NUM; i++) {
442 pos += scnprintf(buf + pos, bufsz - pos,
443 "\tcw_min\tcw_max\taifsn\ttxop\n");
444 pos += scnprintf(buf + pos, bufsz - pos,
445 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
446 ctx->qos_data.def_qos_parm.ac[i].cw_min,
447 ctx->qos_data.def_qos_parm.ac[i].cw_max,
448 ctx->qos_data.def_qos_parm.ac[i].aifsn,
449 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
450 }
451 pos += scnprintf(buf + pos, bufsz - pos, "\n");
452 }
453 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
454 }
455
iwl_dbgfs_thermal_throttling_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)456 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
457 char __user *user_buf,
458 size_t count, loff_t *ppos)
459 {
460 struct iwl_priv *priv = file->private_data;
461 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
462 struct iwl_tt_restriction *restriction;
463 char buf[100];
464 int pos = 0;
465 const size_t bufsz = sizeof(buf);
466
467 pos += scnprintf(buf + pos, bufsz - pos,
468 "Thermal Throttling Mode: %s\n",
469 tt->advanced_tt ? "Advance" : "Legacy");
470 pos += scnprintf(buf + pos, bufsz - pos,
471 "Thermal Throttling State: %d\n",
472 tt->state);
473 if (tt->advanced_tt) {
474 restriction = tt->restriction + tt->state;
475 pos += scnprintf(buf + pos, bufsz - pos,
476 "Tx mode: %d\n",
477 restriction->tx_stream);
478 pos += scnprintf(buf + pos, bufsz - pos,
479 "Rx mode: %d\n",
480 restriction->rx_stream);
481 pos += scnprintf(buf + pos, bufsz - pos,
482 "HT mode: %d\n",
483 restriction->is_ht);
484 }
485 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
486 }
487
iwl_dbgfs_disable_ht40_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)488 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
489 const char __user *user_buf,
490 size_t count, loff_t *ppos)
491 {
492 struct iwl_priv *priv = file->private_data;
493 char buf[8];
494 int buf_size;
495 int ht40;
496
497 memset(buf, 0, sizeof(buf));
498 buf_size = min(count, sizeof(buf) - 1);
499 if (copy_from_user(buf, user_buf, buf_size))
500 return -EFAULT;
501 if (sscanf(buf, "%d", &ht40) != 1)
502 return -EFAULT;
503 if (!iwl_is_any_associated(priv))
504 priv->disable_ht40 = ht40 ? true : false;
505 else
506 return -EINVAL;
507
508 return count;
509 }
510
iwl_dbgfs_disable_ht40_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)511 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
512 char __user *user_buf,
513 size_t count, loff_t *ppos)
514 {
515 struct iwl_priv *priv = file->private_data;
516 char buf[100];
517 int pos = 0;
518 const size_t bufsz = sizeof(buf);
519
520 pos += scnprintf(buf + pos, bufsz - pos,
521 "11n 40MHz Mode: %s\n",
522 priv->disable_ht40 ? "Disabled" : "Enabled");
523 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
524 }
525
iwl_dbgfs_temperature_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)526 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
527 char __user *user_buf,
528 size_t count, loff_t *ppos)
529 {
530 struct iwl_priv *priv = file->private_data;
531 char buf[8];
532 int pos = 0;
533 const size_t bufsz = sizeof(buf);
534
535 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
536 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
537 }
538
539
iwl_dbgfs_sleep_level_override_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)540 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
541 const char __user *user_buf,
542 size_t count, loff_t *ppos)
543 {
544 struct iwl_priv *priv = file->private_data;
545 char buf[8];
546 int buf_size;
547 int value;
548
549 memset(buf, 0, sizeof(buf));
550 buf_size = min(count, sizeof(buf) - 1);
551 if (copy_from_user(buf, user_buf, buf_size))
552 return -EFAULT;
553
554 if (sscanf(buf, "%d", &value) != 1)
555 return -EINVAL;
556
557 /*
558 * Our users expect 0 to be "CAM", but 0 isn't actually
559 * valid here. However, let's not confuse them and present
560 * IWL_POWER_INDEX_1 as "1", not "0".
561 */
562 if (value == 0)
563 return -EINVAL;
564 else if (value > 0)
565 value -= 1;
566
567 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
568 return -EINVAL;
569
570 if (!iwl_is_ready_rf(priv))
571 return -EAGAIN;
572
573 priv->power_data.debug_sleep_level_override = value;
574
575 mutex_lock(&priv->mutex);
576 iwl_power_update_mode(priv, true);
577 mutex_unlock(&priv->mutex);
578
579 return count;
580 }
581
iwl_dbgfs_sleep_level_override_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)582 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
583 char __user *user_buf,
584 size_t count, loff_t *ppos)
585 {
586 struct iwl_priv *priv = file->private_data;
587 char buf[10];
588 int pos, value;
589 const size_t bufsz = sizeof(buf);
590
591 /* see the write function */
592 value = priv->power_data.debug_sleep_level_override;
593 if (value >= 0)
594 value += 1;
595
596 pos = scnprintf(buf, bufsz, "%d\n", value);
597 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
598 }
599
iwl_dbgfs_current_sleep_command_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)600 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
601 char __user *user_buf,
602 size_t count, loff_t *ppos)
603 {
604 struct iwl_priv *priv = file->private_data;
605 char buf[200];
606 int pos = 0, i;
607 const size_t bufsz = sizeof(buf);
608 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
609
610 pos += scnprintf(buf + pos, bufsz - pos,
611 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
612 pos += scnprintf(buf + pos, bufsz - pos,
613 "RX/TX timeout: %d/%d usec\n",
614 le32_to_cpu(cmd->rx_data_timeout),
615 le32_to_cpu(cmd->tx_data_timeout));
616 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
617 pos += scnprintf(buf + pos, bufsz - pos,
618 "sleep_interval[%d]: %d\n", i,
619 le32_to_cpu(cmd->sleep_interval[i]));
620
621 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
622 }
623
624 DEBUGFS_READ_WRITE_FILE_OPS(sram);
625 DEBUGFS_READ_FILE_OPS(wowlan_sram);
626 DEBUGFS_READ_FILE_OPS(nvm);
627 DEBUGFS_READ_FILE_OPS(stations);
628 DEBUGFS_READ_FILE_OPS(channels);
629 DEBUGFS_READ_FILE_OPS(status);
630 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
631 DEBUGFS_READ_FILE_OPS(qos);
632 DEBUGFS_READ_FILE_OPS(thermal_throttling);
633 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
634 DEBUGFS_READ_FILE_OPS(temperature);
635 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
636 DEBUGFS_READ_FILE_OPS(current_sleep_command);
637
638 #define fmt_value " %-30s %10u\n"
639 #define fmt_hex " %-30s 0x%02X\n"
640 #define fmt_table " %-30s %10u %10u %10u %10u\n"
641 #define fmt_header "%-32s current cumulative delta max\n"
642
iwl_statistics_flag(struct iwl_priv * priv,char * buf,int bufsz)643 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
644 {
645 int p = 0;
646 u32 flag;
647
648 lockdep_assert_held(&priv->statistics.lock);
649
650 flag = le32_to_cpu(priv->statistics.flag);
651
652 p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
653 if (flag & UCODE_STATISTICS_CLEAR_MSK)
654 p += scnprintf(buf + p, bufsz - p,
655 "\tStatistics have been cleared\n");
656 p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
657 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
658 ? "2.4 GHz" : "5.2 GHz");
659 p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
660 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
661 ? "enabled" : "disabled");
662
663 return p;
664 }
665
iwl_dbgfs_ucode_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)666 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
667 char __user *user_buf,
668 size_t count, loff_t *ppos)
669 {
670 struct iwl_priv *priv = file->private_data;
671 int pos = 0;
672 char *buf;
673 int bufsz = sizeof(struct statistics_rx_phy) * 40 +
674 sizeof(struct statistics_rx_non_phy) * 40 +
675 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
676 ssize_t ret;
677 struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
678 struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
679 struct statistics_rx_non_phy *general, *accum_general;
680 struct statistics_rx_non_phy *delta_general, *max_general;
681 struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
682
683 if (!iwl_is_alive(priv))
684 return -EAGAIN;
685
686 buf = kzalloc(bufsz, GFP_KERNEL);
687 if (!buf)
688 return -ENOMEM;
689
690 /*
691 * the statistic information display here is based on
692 * the last statistics notification from uCode
693 * might not reflect the current uCode activity
694 */
695 spin_lock_bh(&priv->statistics.lock);
696 ofdm = &priv->statistics.rx_ofdm;
697 cck = &priv->statistics.rx_cck;
698 general = &priv->statistics.rx_non_phy;
699 ht = &priv->statistics.rx_ofdm_ht;
700 accum_ofdm = &priv->accum_stats.rx_ofdm;
701 accum_cck = &priv->accum_stats.rx_cck;
702 accum_general = &priv->accum_stats.rx_non_phy;
703 accum_ht = &priv->accum_stats.rx_ofdm_ht;
704 delta_ofdm = &priv->delta_stats.rx_ofdm;
705 delta_cck = &priv->delta_stats.rx_cck;
706 delta_general = &priv->delta_stats.rx_non_phy;
707 delta_ht = &priv->delta_stats.rx_ofdm_ht;
708 max_ofdm = &priv->max_delta_stats.rx_ofdm;
709 max_cck = &priv->max_delta_stats.rx_cck;
710 max_general = &priv->max_delta_stats.rx_non_phy;
711 max_ht = &priv->max_delta_stats.rx_ofdm_ht;
712
713 pos += iwl_statistics_flag(priv, buf, bufsz);
714 pos += scnprintf(buf + pos, bufsz - pos,
715 fmt_header, "Statistics_Rx - OFDM:");
716 pos += scnprintf(buf + pos, bufsz - pos,
717 fmt_table, "ina_cnt:",
718 le32_to_cpu(ofdm->ina_cnt),
719 accum_ofdm->ina_cnt,
720 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
721 pos += scnprintf(buf + pos, bufsz - pos,
722 fmt_table, "fina_cnt:",
723 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
724 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
725 pos += scnprintf(buf + pos, bufsz - pos,
726 fmt_table, "plcp_err:",
727 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
728 delta_ofdm->plcp_err, max_ofdm->plcp_err);
729 pos += scnprintf(buf + pos, bufsz - pos,
730 fmt_table, "crc32_err:",
731 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
732 delta_ofdm->crc32_err, max_ofdm->crc32_err);
733 pos += scnprintf(buf + pos, bufsz - pos,
734 fmt_table, "overrun_err:",
735 le32_to_cpu(ofdm->overrun_err),
736 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
737 max_ofdm->overrun_err);
738 pos += scnprintf(buf + pos, bufsz - pos,
739 fmt_table, "early_overrun_err:",
740 le32_to_cpu(ofdm->early_overrun_err),
741 accum_ofdm->early_overrun_err,
742 delta_ofdm->early_overrun_err,
743 max_ofdm->early_overrun_err);
744 pos += scnprintf(buf + pos, bufsz - pos,
745 fmt_table, "crc32_good:",
746 le32_to_cpu(ofdm->crc32_good),
747 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
748 max_ofdm->crc32_good);
749 pos += scnprintf(buf + pos, bufsz - pos,
750 fmt_table, "false_alarm_cnt:",
751 le32_to_cpu(ofdm->false_alarm_cnt),
752 accum_ofdm->false_alarm_cnt,
753 delta_ofdm->false_alarm_cnt,
754 max_ofdm->false_alarm_cnt);
755 pos += scnprintf(buf + pos, bufsz - pos,
756 fmt_table, "fina_sync_err_cnt:",
757 le32_to_cpu(ofdm->fina_sync_err_cnt),
758 accum_ofdm->fina_sync_err_cnt,
759 delta_ofdm->fina_sync_err_cnt,
760 max_ofdm->fina_sync_err_cnt);
761 pos += scnprintf(buf + pos, bufsz - pos,
762 fmt_table, "sfd_timeout:",
763 le32_to_cpu(ofdm->sfd_timeout),
764 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
765 max_ofdm->sfd_timeout);
766 pos += scnprintf(buf + pos, bufsz - pos,
767 fmt_table, "fina_timeout:",
768 le32_to_cpu(ofdm->fina_timeout),
769 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
770 max_ofdm->fina_timeout);
771 pos += scnprintf(buf + pos, bufsz - pos,
772 fmt_table, "unresponded_rts:",
773 le32_to_cpu(ofdm->unresponded_rts),
774 accum_ofdm->unresponded_rts,
775 delta_ofdm->unresponded_rts,
776 max_ofdm->unresponded_rts);
777 pos += scnprintf(buf + pos, bufsz - pos,
778 fmt_table, "rxe_frame_lmt_ovrun:",
779 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
780 accum_ofdm->rxe_frame_limit_overrun,
781 delta_ofdm->rxe_frame_limit_overrun,
782 max_ofdm->rxe_frame_limit_overrun);
783 pos += scnprintf(buf + pos, bufsz - pos,
784 fmt_table, "sent_ack_cnt:",
785 le32_to_cpu(ofdm->sent_ack_cnt),
786 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
787 max_ofdm->sent_ack_cnt);
788 pos += scnprintf(buf + pos, bufsz - pos,
789 fmt_table, "sent_cts_cnt:",
790 le32_to_cpu(ofdm->sent_cts_cnt),
791 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
792 max_ofdm->sent_cts_cnt);
793 pos += scnprintf(buf + pos, bufsz - pos,
794 fmt_table, "sent_ba_rsp_cnt:",
795 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
796 accum_ofdm->sent_ba_rsp_cnt,
797 delta_ofdm->sent_ba_rsp_cnt,
798 max_ofdm->sent_ba_rsp_cnt);
799 pos += scnprintf(buf + pos, bufsz - pos,
800 fmt_table, "dsp_self_kill:",
801 le32_to_cpu(ofdm->dsp_self_kill),
802 accum_ofdm->dsp_self_kill,
803 delta_ofdm->dsp_self_kill,
804 max_ofdm->dsp_self_kill);
805 pos += scnprintf(buf + pos, bufsz - pos,
806 fmt_table, "mh_format_err:",
807 le32_to_cpu(ofdm->mh_format_err),
808 accum_ofdm->mh_format_err,
809 delta_ofdm->mh_format_err,
810 max_ofdm->mh_format_err);
811 pos += scnprintf(buf + pos, bufsz - pos,
812 fmt_table, "re_acq_main_rssi_sum:",
813 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
814 accum_ofdm->re_acq_main_rssi_sum,
815 delta_ofdm->re_acq_main_rssi_sum,
816 max_ofdm->re_acq_main_rssi_sum);
817
818 pos += scnprintf(buf + pos, bufsz - pos,
819 fmt_header, "Statistics_Rx - CCK:");
820 pos += scnprintf(buf + pos, bufsz - pos,
821 fmt_table, "ina_cnt:",
822 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
823 delta_cck->ina_cnt, max_cck->ina_cnt);
824 pos += scnprintf(buf + pos, bufsz - pos,
825 fmt_table, "fina_cnt:",
826 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
827 delta_cck->fina_cnt, max_cck->fina_cnt);
828 pos += scnprintf(buf + pos, bufsz - pos,
829 fmt_table, "plcp_err:",
830 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
831 delta_cck->plcp_err, max_cck->plcp_err);
832 pos += scnprintf(buf + pos, bufsz - pos,
833 fmt_table, "crc32_err:",
834 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
835 delta_cck->crc32_err, max_cck->crc32_err);
836 pos += scnprintf(buf + pos, bufsz - pos,
837 fmt_table, "overrun_err:",
838 le32_to_cpu(cck->overrun_err),
839 accum_cck->overrun_err, delta_cck->overrun_err,
840 max_cck->overrun_err);
841 pos += scnprintf(buf + pos, bufsz - pos,
842 fmt_table, "early_overrun_err:",
843 le32_to_cpu(cck->early_overrun_err),
844 accum_cck->early_overrun_err,
845 delta_cck->early_overrun_err,
846 max_cck->early_overrun_err);
847 pos += scnprintf(buf + pos, bufsz - pos,
848 fmt_table, "crc32_good:",
849 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
850 delta_cck->crc32_good, max_cck->crc32_good);
851 pos += scnprintf(buf + pos, bufsz - pos,
852 fmt_table, "false_alarm_cnt:",
853 le32_to_cpu(cck->false_alarm_cnt),
854 accum_cck->false_alarm_cnt,
855 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
856 pos += scnprintf(buf + pos, bufsz - pos,
857 fmt_table, "fina_sync_err_cnt:",
858 le32_to_cpu(cck->fina_sync_err_cnt),
859 accum_cck->fina_sync_err_cnt,
860 delta_cck->fina_sync_err_cnt,
861 max_cck->fina_sync_err_cnt);
862 pos += scnprintf(buf + pos, bufsz - pos,
863 fmt_table, "sfd_timeout:",
864 le32_to_cpu(cck->sfd_timeout),
865 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
866 max_cck->sfd_timeout);
867 pos += scnprintf(buf + pos, bufsz - pos,
868 fmt_table, "fina_timeout:",
869 le32_to_cpu(cck->fina_timeout),
870 accum_cck->fina_timeout, delta_cck->fina_timeout,
871 max_cck->fina_timeout);
872 pos += scnprintf(buf + pos, bufsz - pos,
873 fmt_table, "unresponded_rts:",
874 le32_to_cpu(cck->unresponded_rts),
875 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
876 max_cck->unresponded_rts);
877 pos += scnprintf(buf + pos, bufsz - pos,
878 fmt_table, "rxe_frame_lmt_ovrun:",
879 le32_to_cpu(cck->rxe_frame_limit_overrun),
880 accum_cck->rxe_frame_limit_overrun,
881 delta_cck->rxe_frame_limit_overrun,
882 max_cck->rxe_frame_limit_overrun);
883 pos += scnprintf(buf + pos, bufsz - pos,
884 fmt_table, "sent_ack_cnt:",
885 le32_to_cpu(cck->sent_ack_cnt),
886 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
887 max_cck->sent_ack_cnt);
888 pos += scnprintf(buf + pos, bufsz - pos,
889 fmt_table, "sent_cts_cnt:",
890 le32_to_cpu(cck->sent_cts_cnt),
891 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
892 max_cck->sent_cts_cnt);
893 pos += scnprintf(buf + pos, bufsz - pos,
894 fmt_table, "sent_ba_rsp_cnt:",
895 le32_to_cpu(cck->sent_ba_rsp_cnt),
896 accum_cck->sent_ba_rsp_cnt,
897 delta_cck->sent_ba_rsp_cnt,
898 max_cck->sent_ba_rsp_cnt);
899 pos += scnprintf(buf + pos, bufsz - pos,
900 fmt_table, "dsp_self_kill:",
901 le32_to_cpu(cck->dsp_self_kill),
902 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
903 max_cck->dsp_self_kill);
904 pos += scnprintf(buf + pos, bufsz - pos,
905 fmt_table, "mh_format_err:",
906 le32_to_cpu(cck->mh_format_err),
907 accum_cck->mh_format_err, delta_cck->mh_format_err,
908 max_cck->mh_format_err);
909 pos += scnprintf(buf + pos, bufsz - pos,
910 fmt_table, "re_acq_main_rssi_sum:",
911 le32_to_cpu(cck->re_acq_main_rssi_sum),
912 accum_cck->re_acq_main_rssi_sum,
913 delta_cck->re_acq_main_rssi_sum,
914 max_cck->re_acq_main_rssi_sum);
915
916 pos += scnprintf(buf + pos, bufsz - pos,
917 fmt_header, "Statistics_Rx - GENERAL:");
918 pos += scnprintf(buf + pos, bufsz - pos,
919 fmt_table, "bogus_cts:",
920 le32_to_cpu(general->bogus_cts),
921 accum_general->bogus_cts, delta_general->bogus_cts,
922 max_general->bogus_cts);
923 pos += scnprintf(buf + pos, bufsz - pos,
924 fmt_table, "bogus_ack:",
925 le32_to_cpu(general->bogus_ack),
926 accum_general->bogus_ack, delta_general->bogus_ack,
927 max_general->bogus_ack);
928 pos += scnprintf(buf + pos, bufsz - pos,
929 fmt_table, "non_bssid_frames:",
930 le32_to_cpu(general->non_bssid_frames),
931 accum_general->non_bssid_frames,
932 delta_general->non_bssid_frames,
933 max_general->non_bssid_frames);
934 pos += scnprintf(buf + pos, bufsz - pos,
935 fmt_table, "filtered_frames:",
936 le32_to_cpu(general->filtered_frames),
937 accum_general->filtered_frames,
938 delta_general->filtered_frames,
939 max_general->filtered_frames);
940 pos += scnprintf(buf + pos, bufsz - pos,
941 fmt_table, "non_channel_beacons:",
942 le32_to_cpu(general->non_channel_beacons),
943 accum_general->non_channel_beacons,
944 delta_general->non_channel_beacons,
945 max_general->non_channel_beacons);
946 pos += scnprintf(buf + pos, bufsz - pos,
947 fmt_table, "channel_beacons:",
948 le32_to_cpu(general->channel_beacons),
949 accum_general->channel_beacons,
950 delta_general->channel_beacons,
951 max_general->channel_beacons);
952 pos += scnprintf(buf + pos, bufsz - pos,
953 fmt_table, "num_missed_bcon:",
954 le32_to_cpu(general->num_missed_bcon),
955 accum_general->num_missed_bcon,
956 delta_general->num_missed_bcon,
957 max_general->num_missed_bcon);
958 pos += scnprintf(buf + pos, bufsz - pos,
959 fmt_table, "adc_rx_saturation_time:",
960 le32_to_cpu(general->adc_rx_saturation_time),
961 accum_general->adc_rx_saturation_time,
962 delta_general->adc_rx_saturation_time,
963 max_general->adc_rx_saturation_time);
964 pos += scnprintf(buf + pos, bufsz - pos,
965 fmt_table, "ina_detect_search_tm:",
966 le32_to_cpu(general->ina_detection_search_time),
967 accum_general->ina_detection_search_time,
968 delta_general->ina_detection_search_time,
969 max_general->ina_detection_search_time);
970 pos += scnprintf(buf + pos, bufsz - pos,
971 fmt_table, "beacon_silence_rssi_a:",
972 le32_to_cpu(general->beacon_silence_rssi_a),
973 accum_general->beacon_silence_rssi_a,
974 delta_general->beacon_silence_rssi_a,
975 max_general->beacon_silence_rssi_a);
976 pos += scnprintf(buf + pos, bufsz - pos,
977 fmt_table, "beacon_silence_rssi_b:",
978 le32_to_cpu(general->beacon_silence_rssi_b),
979 accum_general->beacon_silence_rssi_b,
980 delta_general->beacon_silence_rssi_b,
981 max_general->beacon_silence_rssi_b);
982 pos += scnprintf(buf + pos, bufsz - pos,
983 fmt_table, "beacon_silence_rssi_c:",
984 le32_to_cpu(general->beacon_silence_rssi_c),
985 accum_general->beacon_silence_rssi_c,
986 delta_general->beacon_silence_rssi_c,
987 max_general->beacon_silence_rssi_c);
988 pos += scnprintf(buf + pos, bufsz - pos,
989 fmt_table, "interference_data_flag:",
990 le32_to_cpu(general->interference_data_flag),
991 accum_general->interference_data_flag,
992 delta_general->interference_data_flag,
993 max_general->interference_data_flag);
994 pos += scnprintf(buf + pos, bufsz - pos,
995 fmt_table, "channel_load:",
996 le32_to_cpu(general->channel_load),
997 accum_general->channel_load,
998 delta_general->channel_load,
999 max_general->channel_load);
1000 pos += scnprintf(buf + pos, bufsz - pos,
1001 fmt_table, "dsp_false_alarms:",
1002 le32_to_cpu(general->dsp_false_alarms),
1003 accum_general->dsp_false_alarms,
1004 delta_general->dsp_false_alarms,
1005 max_general->dsp_false_alarms);
1006 pos += scnprintf(buf + pos, bufsz - pos,
1007 fmt_table, "beacon_rssi_a:",
1008 le32_to_cpu(general->beacon_rssi_a),
1009 accum_general->beacon_rssi_a,
1010 delta_general->beacon_rssi_a,
1011 max_general->beacon_rssi_a);
1012 pos += scnprintf(buf + pos, bufsz - pos,
1013 fmt_table, "beacon_rssi_b:",
1014 le32_to_cpu(general->beacon_rssi_b),
1015 accum_general->beacon_rssi_b,
1016 delta_general->beacon_rssi_b,
1017 max_general->beacon_rssi_b);
1018 pos += scnprintf(buf + pos, bufsz - pos,
1019 fmt_table, "beacon_rssi_c:",
1020 le32_to_cpu(general->beacon_rssi_c),
1021 accum_general->beacon_rssi_c,
1022 delta_general->beacon_rssi_c,
1023 max_general->beacon_rssi_c);
1024 pos += scnprintf(buf + pos, bufsz - pos,
1025 fmt_table, "beacon_energy_a:",
1026 le32_to_cpu(general->beacon_energy_a),
1027 accum_general->beacon_energy_a,
1028 delta_general->beacon_energy_a,
1029 max_general->beacon_energy_a);
1030 pos += scnprintf(buf + pos, bufsz - pos,
1031 fmt_table, "beacon_energy_b:",
1032 le32_to_cpu(general->beacon_energy_b),
1033 accum_general->beacon_energy_b,
1034 delta_general->beacon_energy_b,
1035 max_general->beacon_energy_b);
1036 pos += scnprintf(buf + pos, bufsz - pos,
1037 fmt_table, "beacon_energy_c:",
1038 le32_to_cpu(general->beacon_energy_c),
1039 accum_general->beacon_energy_c,
1040 delta_general->beacon_energy_c,
1041 max_general->beacon_energy_c);
1042
1043 pos += scnprintf(buf + pos, bufsz - pos,
1044 fmt_header, "Statistics_Rx - OFDM_HT:");
1045 pos += scnprintf(buf + pos, bufsz - pos,
1046 fmt_table, "plcp_err:",
1047 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1048 delta_ht->plcp_err, max_ht->plcp_err);
1049 pos += scnprintf(buf + pos, bufsz - pos,
1050 fmt_table, "overrun_err:",
1051 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1052 delta_ht->overrun_err, max_ht->overrun_err);
1053 pos += scnprintf(buf + pos, bufsz - pos,
1054 fmt_table, "early_overrun_err:",
1055 le32_to_cpu(ht->early_overrun_err),
1056 accum_ht->early_overrun_err,
1057 delta_ht->early_overrun_err,
1058 max_ht->early_overrun_err);
1059 pos += scnprintf(buf + pos, bufsz - pos,
1060 fmt_table, "crc32_good:",
1061 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1062 delta_ht->crc32_good, max_ht->crc32_good);
1063 pos += scnprintf(buf + pos, bufsz - pos,
1064 fmt_table, "crc32_err:",
1065 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1066 delta_ht->crc32_err, max_ht->crc32_err);
1067 pos += scnprintf(buf + pos, bufsz - pos,
1068 fmt_table, "mh_format_err:",
1069 le32_to_cpu(ht->mh_format_err),
1070 accum_ht->mh_format_err,
1071 delta_ht->mh_format_err, max_ht->mh_format_err);
1072 pos += scnprintf(buf + pos, bufsz - pos,
1073 fmt_table, "agg_crc32_good:",
1074 le32_to_cpu(ht->agg_crc32_good),
1075 accum_ht->agg_crc32_good,
1076 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1077 pos += scnprintf(buf + pos, bufsz - pos,
1078 fmt_table, "agg_mpdu_cnt:",
1079 le32_to_cpu(ht->agg_mpdu_cnt),
1080 accum_ht->agg_mpdu_cnt,
1081 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1082 pos += scnprintf(buf + pos, bufsz - pos,
1083 fmt_table, "agg_cnt:",
1084 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1085 delta_ht->agg_cnt, max_ht->agg_cnt);
1086 pos += scnprintf(buf + pos, bufsz - pos,
1087 fmt_table, "unsupport_mcs:",
1088 le32_to_cpu(ht->unsupport_mcs),
1089 accum_ht->unsupport_mcs,
1090 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1091
1092 spin_unlock_bh(&priv->statistics.lock);
1093
1094 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1095 kfree(buf);
1096 return ret;
1097 }
1098
iwl_dbgfs_ucode_tx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1099 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1100 char __user *user_buf,
1101 size_t count, loff_t *ppos)
1102 {
1103 struct iwl_priv *priv = file->private_data;
1104 int pos = 0;
1105 char *buf;
1106 int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1107 ssize_t ret;
1108 struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1109
1110 if (!iwl_is_alive(priv))
1111 return -EAGAIN;
1112
1113 buf = kzalloc(bufsz, GFP_KERNEL);
1114 if (!buf)
1115 return -ENOMEM;
1116
1117 /* the statistic information display here is based on
1118 * the last statistics notification from uCode
1119 * might not reflect the current uCode activity
1120 */
1121 spin_lock_bh(&priv->statistics.lock);
1122
1123 tx = &priv->statistics.tx;
1124 accum_tx = &priv->accum_stats.tx;
1125 delta_tx = &priv->delta_stats.tx;
1126 max_tx = &priv->max_delta_stats.tx;
1127
1128 pos += iwl_statistics_flag(priv, buf, bufsz);
1129 pos += scnprintf(buf + pos, bufsz - pos,
1130 fmt_header, "Statistics_Tx:");
1131 pos += scnprintf(buf + pos, bufsz - pos,
1132 fmt_table, "preamble:",
1133 le32_to_cpu(tx->preamble_cnt),
1134 accum_tx->preamble_cnt,
1135 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1136 pos += scnprintf(buf + pos, bufsz - pos,
1137 fmt_table, "rx_detected_cnt:",
1138 le32_to_cpu(tx->rx_detected_cnt),
1139 accum_tx->rx_detected_cnt,
1140 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1141 pos += scnprintf(buf + pos, bufsz - pos,
1142 fmt_table, "bt_prio_defer_cnt:",
1143 le32_to_cpu(tx->bt_prio_defer_cnt),
1144 accum_tx->bt_prio_defer_cnt,
1145 delta_tx->bt_prio_defer_cnt,
1146 max_tx->bt_prio_defer_cnt);
1147 pos += scnprintf(buf + pos, bufsz - pos,
1148 fmt_table, "bt_prio_kill_cnt:",
1149 le32_to_cpu(tx->bt_prio_kill_cnt),
1150 accum_tx->bt_prio_kill_cnt,
1151 delta_tx->bt_prio_kill_cnt,
1152 max_tx->bt_prio_kill_cnt);
1153 pos += scnprintf(buf + pos, bufsz - pos,
1154 fmt_table, "few_bytes_cnt:",
1155 le32_to_cpu(tx->few_bytes_cnt),
1156 accum_tx->few_bytes_cnt,
1157 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1158 pos += scnprintf(buf + pos, bufsz - pos,
1159 fmt_table, "cts_timeout:",
1160 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1161 delta_tx->cts_timeout, max_tx->cts_timeout);
1162 pos += scnprintf(buf + pos, bufsz - pos,
1163 fmt_table, "ack_timeout:",
1164 le32_to_cpu(tx->ack_timeout),
1165 accum_tx->ack_timeout,
1166 delta_tx->ack_timeout, max_tx->ack_timeout);
1167 pos += scnprintf(buf + pos, bufsz - pos,
1168 fmt_table, "expected_ack_cnt:",
1169 le32_to_cpu(tx->expected_ack_cnt),
1170 accum_tx->expected_ack_cnt,
1171 delta_tx->expected_ack_cnt,
1172 max_tx->expected_ack_cnt);
1173 pos += scnprintf(buf + pos, bufsz - pos,
1174 fmt_table, "actual_ack_cnt:",
1175 le32_to_cpu(tx->actual_ack_cnt),
1176 accum_tx->actual_ack_cnt,
1177 delta_tx->actual_ack_cnt,
1178 max_tx->actual_ack_cnt);
1179 pos += scnprintf(buf + pos, bufsz - pos,
1180 fmt_table, "dump_msdu_cnt:",
1181 le32_to_cpu(tx->dump_msdu_cnt),
1182 accum_tx->dump_msdu_cnt,
1183 delta_tx->dump_msdu_cnt,
1184 max_tx->dump_msdu_cnt);
1185 pos += scnprintf(buf + pos, bufsz - pos,
1186 fmt_table, "abort_nxt_frame_mismatch:",
1187 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1188 accum_tx->burst_abort_next_frame_mismatch_cnt,
1189 delta_tx->burst_abort_next_frame_mismatch_cnt,
1190 max_tx->burst_abort_next_frame_mismatch_cnt);
1191 pos += scnprintf(buf + pos, bufsz - pos,
1192 fmt_table, "abort_missing_nxt_frame:",
1193 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1194 accum_tx->burst_abort_missing_next_frame_cnt,
1195 delta_tx->burst_abort_missing_next_frame_cnt,
1196 max_tx->burst_abort_missing_next_frame_cnt);
1197 pos += scnprintf(buf + pos, bufsz - pos,
1198 fmt_table, "cts_timeout_collision:",
1199 le32_to_cpu(tx->cts_timeout_collision),
1200 accum_tx->cts_timeout_collision,
1201 delta_tx->cts_timeout_collision,
1202 max_tx->cts_timeout_collision);
1203 pos += scnprintf(buf + pos, bufsz - pos,
1204 fmt_table, "ack_ba_timeout_collision:",
1205 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1206 accum_tx->ack_or_ba_timeout_collision,
1207 delta_tx->ack_or_ba_timeout_collision,
1208 max_tx->ack_or_ba_timeout_collision);
1209 pos += scnprintf(buf + pos, bufsz - pos,
1210 fmt_table, "agg ba_timeout:",
1211 le32_to_cpu(tx->agg.ba_timeout),
1212 accum_tx->agg.ba_timeout,
1213 delta_tx->agg.ba_timeout,
1214 max_tx->agg.ba_timeout);
1215 pos += scnprintf(buf + pos, bufsz - pos,
1216 fmt_table, "agg ba_resched_frames:",
1217 le32_to_cpu(tx->agg.ba_reschedule_frames),
1218 accum_tx->agg.ba_reschedule_frames,
1219 delta_tx->agg.ba_reschedule_frames,
1220 max_tx->agg.ba_reschedule_frames);
1221 pos += scnprintf(buf + pos, bufsz - pos,
1222 fmt_table, "agg scd_query_agg_frame:",
1223 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1224 accum_tx->agg.scd_query_agg_frame_cnt,
1225 delta_tx->agg.scd_query_agg_frame_cnt,
1226 max_tx->agg.scd_query_agg_frame_cnt);
1227 pos += scnprintf(buf + pos, bufsz - pos,
1228 fmt_table, "agg scd_query_no_agg:",
1229 le32_to_cpu(tx->agg.scd_query_no_agg),
1230 accum_tx->agg.scd_query_no_agg,
1231 delta_tx->agg.scd_query_no_agg,
1232 max_tx->agg.scd_query_no_agg);
1233 pos += scnprintf(buf + pos, bufsz - pos,
1234 fmt_table, "agg scd_query_agg:",
1235 le32_to_cpu(tx->agg.scd_query_agg),
1236 accum_tx->agg.scd_query_agg,
1237 delta_tx->agg.scd_query_agg,
1238 max_tx->agg.scd_query_agg);
1239 pos += scnprintf(buf + pos, bufsz - pos,
1240 fmt_table, "agg scd_query_mismatch:",
1241 le32_to_cpu(tx->agg.scd_query_mismatch),
1242 accum_tx->agg.scd_query_mismatch,
1243 delta_tx->agg.scd_query_mismatch,
1244 max_tx->agg.scd_query_mismatch);
1245 pos += scnprintf(buf + pos, bufsz - pos,
1246 fmt_table, "agg frame_not_ready:",
1247 le32_to_cpu(tx->agg.frame_not_ready),
1248 accum_tx->agg.frame_not_ready,
1249 delta_tx->agg.frame_not_ready,
1250 max_tx->agg.frame_not_ready);
1251 pos += scnprintf(buf + pos, bufsz - pos,
1252 fmt_table, "agg underrun:",
1253 le32_to_cpu(tx->agg.underrun),
1254 accum_tx->agg.underrun,
1255 delta_tx->agg.underrun, max_tx->agg.underrun);
1256 pos += scnprintf(buf + pos, bufsz - pos,
1257 fmt_table, "agg bt_prio_kill:",
1258 le32_to_cpu(tx->agg.bt_prio_kill),
1259 accum_tx->agg.bt_prio_kill,
1260 delta_tx->agg.bt_prio_kill,
1261 max_tx->agg.bt_prio_kill);
1262 pos += scnprintf(buf + pos, bufsz - pos,
1263 fmt_table, "agg rx_ba_rsp_cnt:",
1264 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1265 accum_tx->agg.rx_ba_rsp_cnt,
1266 delta_tx->agg.rx_ba_rsp_cnt,
1267 max_tx->agg.rx_ba_rsp_cnt);
1268
1269 if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1270 pos += scnprintf(buf + pos, bufsz - pos,
1271 "tx power: (1/2 dB step)\n");
1272 if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1273 tx->tx_power.ant_a)
1274 pos += scnprintf(buf + pos, bufsz - pos,
1275 fmt_hex, "antenna A:",
1276 tx->tx_power.ant_a);
1277 if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1278 tx->tx_power.ant_b)
1279 pos += scnprintf(buf + pos, bufsz - pos,
1280 fmt_hex, "antenna B:",
1281 tx->tx_power.ant_b);
1282 if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1283 tx->tx_power.ant_c)
1284 pos += scnprintf(buf + pos, bufsz - pos,
1285 fmt_hex, "antenna C:",
1286 tx->tx_power.ant_c);
1287 }
1288
1289 spin_unlock_bh(&priv->statistics.lock);
1290
1291 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1292 kfree(buf);
1293 return ret;
1294 }
1295
iwl_dbgfs_ucode_general_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1296 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1297 char __user *user_buf,
1298 size_t count, loff_t *ppos)
1299 {
1300 struct iwl_priv *priv = file->private_data;
1301 int pos = 0;
1302 char *buf;
1303 int bufsz = sizeof(struct statistics_general) * 10 + 300;
1304 ssize_t ret;
1305 struct statistics_general_common *general, *accum_general;
1306 struct statistics_general_common *delta_general, *max_general;
1307 struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1308 struct statistics_div *div, *accum_div, *delta_div, *max_div;
1309
1310 if (!iwl_is_alive(priv))
1311 return -EAGAIN;
1312
1313 buf = kzalloc(bufsz, GFP_KERNEL);
1314 if (!buf)
1315 return -ENOMEM;
1316
1317 /* the statistic information display here is based on
1318 * the last statistics notification from uCode
1319 * might not reflect the current uCode activity
1320 */
1321
1322 spin_lock_bh(&priv->statistics.lock);
1323
1324 general = &priv->statistics.common;
1325 dbg = &priv->statistics.common.dbg;
1326 div = &priv->statistics.common.div;
1327 accum_general = &priv->accum_stats.common;
1328 accum_dbg = &priv->accum_stats.common.dbg;
1329 accum_div = &priv->accum_stats.common.div;
1330 delta_general = &priv->delta_stats.common;
1331 max_general = &priv->max_delta_stats.common;
1332 delta_dbg = &priv->delta_stats.common.dbg;
1333 max_dbg = &priv->max_delta_stats.common.dbg;
1334 delta_div = &priv->delta_stats.common.div;
1335 max_div = &priv->max_delta_stats.common.div;
1336
1337 pos += iwl_statistics_flag(priv, buf, bufsz);
1338 pos += scnprintf(buf + pos, bufsz - pos,
1339 fmt_header, "Statistics_General:");
1340 pos += scnprintf(buf + pos, bufsz - pos,
1341 fmt_value, "temperature:",
1342 le32_to_cpu(general->temperature));
1343 pos += scnprintf(buf + pos, bufsz - pos,
1344 fmt_value, "temperature_m:",
1345 le32_to_cpu(general->temperature_m));
1346 pos += scnprintf(buf + pos, bufsz - pos,
1347 fmt_value, "ttl_timestamp:",
1348 le32_to_cpu(general->ttl_timestamp));
1349 pos += scnprintf(buf + pos, bufsz - pos,
1350 fmt_table, "burst_check:",
1351 le32_to_cpu(dbg->burst_check),
1352 accum_dbg->burst_check,
1353 delta_dbg->burst_check, max_dbg->burst_check);
1354 pos += scnprintf(buf + pos, bufsz - pos,
1355 fmt_table, "burst_count:",
1356 le32_to_cpu(dbg->burst_count),
1357 accum_dbg->burst_count,
1358 delta_dbg->burst_count, max_dbg->burst_count);
1359 pos += scnprintf(buf + pos, bufsz - pos,
1360 fmt_table, "wait_for_silence_timeout_count:",
1361 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1362 accum_dbg->wait_for_silence_timeout_cnt,
1363 delta_dbg->wait_for_silence_timeout_cnt,
1364 max_dbg->wait_for_silence_timeout_cnt);
1365 pos += scnprintf(buf + pos, bufsz - pos,
1366 fmt_table, "sleep_time:",
1367 le32_to_cpu(general->sleep_time),
1368 accum_general->sleep_time,
1369 delta_general->sleep_time, max_general->sleep_time);
1370 pos += scnprintf(buf + pos, bufsz - pos,
1371 fmt_table, "slots_out:",
1372 le32_to_cpu(general->slots_out),
1373 accum_general->slots_out,
1374 delta_general->slots_out, max_general->slots_out);
1375 pos += scnprintf(buf + pos, bufsz - pos,
1376 fmt_table, "slots_idle:",
1377 le32_to_cpu(general->slots_idle),
1378 accum_general->slots_idle,
1379 delta_general->slots_idle, max_general->slots_idle);
1380 pos += scnprintf(buf + pos, bufsz - pos,
1381 fmt_table, "tx_on_a:",
1382 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1383 delta_div->tx_on_a, max_div->tx_on_a);
1384 pos += scnprintf(buf + pos, bufsz - pos,
1385 fmt_table, "tx_on_b:",
1386 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1387 delta_div->tx_on_b, max_div->tx_on_b);
1388 pos += scnprintf(buf + pos, bufsz - pos,
1389 fmt_table, "exec_time:",
1390 le32_to_cpu(div->exec_time), accum_div->exec_time,
1391 delta_div->exec_time, max_div->exec_time);
1392 pos += scnprintf(buf + pos, bufsz - pos,
1393 fmt_table, "probe_time:",
1394 le32_to_cpu(div->probe_time), accum_div->probe_time,
1395 delta_div->probe_time, max_div->probe_time);
1396 pos += scnprintf(buf + pos, bufsz - pos,
1397 fmt_table, "rx_enable_counter:",
1398 le32_to_cpu(general->rx_enable_counter),
1399 accum_general->rx_enable_counter,
1400 delta_general->rx_enable_counter,
1401 max_general->rx_enable_counter);
1402 pos += scnprintf(buf + pos, bufsz - pos,
1403 fmt_table, "num_of_sos_states:",
1404 le32_to_cpu(general->num_of_sos_states),
1405 accum_general->num_of_sos_states,
1406 delta_general->num_of_sos_states,
1407 max_general->num_of_sos_states);
1408
1409 spin_unlock_bh(&priv->statistics.lock);
1410
1411 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1412 kfree(buf);
1413 return ret;
1414 }
1415
iwl_dbgfs_ucode_bt_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1416 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1417 char __user *user_buf,
1418 size_t count, loff_t *ppos)
1419 {
1420 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1421 int pos = 0;
1422 char *buf;
1423 int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1424 ssize_t ret;
1425 struct statistics_bt_activity *bt, *accum_bt;
1426
1427 if (!iwl_is_alive(priv))
1428 return -EAGAIN;
1429
1430 if (!priv->bt_enable_flag)
1431 return -EINVAL;
1432
1433 /* make request to uCode to retrieve statistics information */
1434 mutex_lock(&priv->mutex);
1435 ret = iwl_send_statistics_request(priv, 0, false);
1436 mutex_unlock(&priv->mutex);
1437
1438 if (ret)
1439 return -EAGAIN;
1440 buf = kzalloc(bufsz, GFP_KERNEL);
1441 if (!buf)
1442 return -ENOMEM;
1443
1444 /*
1445 * the statistic information display here is based on
1446 * the last statistics notification from uCode
1447 * might not reflect the current uCode activity
1448 */
1449
1450 spin_lock_bh(&priv->statistics.lock);
1451
1452 bt = &priv->statistics.bt_activity;
1453 accum_bt = &priv->accum_stats.bt_activity;
1454
1455 pos += iwl_statistics_flag(priv, buf, bufsz);
1456 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1457 pos += scnprintf(buf + pos, bufsz - pos,
1458 "\t\t\tcurrent\t\t\taccumulative\n");
1459 pos += scnprintf(buf + pos, bufsz - pos,
1460 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1461 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1462 accum_bt->hi_priority_tx_req_cnt);
1463 pos += scnprintf(buf + pos, bufsz - pos,
1464 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1465 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1466 accum_bt->hi_priority_tx_denied_cnt);
1467 pos += scnprintf(buf + pos, bufsz - pos,
1468 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1469 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1470 accum_bt->lo_priority_tx_req_cnt);
1471 pos += scnprintf(buf + pos, bufsz - pos,
1472 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1473 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1474 accum_bt->lo_priority_tx_denied_cnt);
1475 pos += scnprintf(buf + pos, bufsz - pos,
1476 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1477 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1478 accum_bt->hi_priority_rx_req_cnt);
1479 pos += scnprintf(buf + pos, bufsz - pos,
1480 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1481 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1482 accum_bt->hi_priority_rx_denied_cnt);
1483 pos += scnprintf(buf + pos, bufsz - pos,
1484 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1485 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1486 accum_bt->lo_priority_rx_req_cnt);
1487 pos += scnprintf(buf + pos, bufsz - pos,
1488 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1489 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1490 accum_bt->lo_priority_rx_denied_cnt);
1491
1492 pos += scnprintf(buf + pos, bufsz - pos,
1493 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1494 le32_to_cpu(priv->statistics.num_bt_kills),
1495 priv->statistics.accum_num_bt_kills);
1496
1497 spin_unlock_bh(&priv->statistics.lock);
1498
1499 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1500 kfree(buf);
1501 return ret;
1502 }
1503
iwl_dbgfs_reply_tx_error_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1504 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1505 char __user *user_buf,
1506 size_t count, loff_t *ppos)
1507 {
1508 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1509 int pos = 0;
1510 char *buf;
1511 int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1512 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1513 ssize_t ret;
1514
1515 if (!iwl_is_alive(priv))
1516 return -EAGAIN;
1517
1518 buf = kzalloc(bufsz, GFP_KERNEL);
1519 if (!buf)
1520 return -ENOMEM;
1521
1522 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1523 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1524 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1525 priv->reply_tx_stats.pp_delay);
1526 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1527 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1528 priv->reply_tx_stats.pp_few_bytes);
1529 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1530 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1531 priv->reply_tx_stats.pp_bt_prio);
1532 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1533 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1534 priv->reply_tx_stats.pp_quiet_period);
1535 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1536 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1537 priv->reply_tx_stats.pp_calc_ttak);
1538 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1539 iwl_get_tx_fail_reason(
1540 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1541 priv->reply_tx_stats.int_crossed_retry);
1542 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1543 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1544 priv->reply_tx_stats.short_limit);
1545 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1546 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1547 priv->reply_tx_stats.long_limit);
1548 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1549 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1550 priv->reply_tx_stats.fifo_underrun);
1551 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1552 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1553 priv->reply_tx_stats.drain_flow);
1554 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1555 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1556 priv->reply_tx_stats.rfkill_flush);
1557 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1558 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1559 priv->reply_tx_stats.life_expire);
1560 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1561 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1562 priv->reply_tx_stats.dest_ps);
1563 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1564 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1565 priv->reply_tx_stats.host_abort);
1566 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1567 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1568 priv->reply_tx_stats.pp_delay);
1569 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1570 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1571 priv->reply_tx_stats.sta_invalid);
1572 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1573 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1574 priv->reply_tx_stats.frag_drop);
1575 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1577 priv->reply_tx_stats.tid_disable);
1578 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1580 priv->reply_tx_stats.fifo_flush);
1581 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1582 iwl_get_tx_fail_reason(
1583 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1584 priv->reply_tx_stats.insuff_cf_poll);
1585 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1586 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1587 priv->reply_tx_stats.fail_hw_drop);
1588 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1589 iwl_get_tx_fail_reason(
1590 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1591 priv->reply_tx_stats.sta_color_mismatch);
1592 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1593 priv->reply_tx_stats.unknown);
1594
1595 pos += scnprintf(buf + pos, bufsz - pos,
1596 "\nStatistics_Agg_TX_Error:\n");
1597
1598 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1599 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1600 priv->reply_agg_tx_stats.underrun);
1601 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1602 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1603 priv->reply_agg_tx_stats.bt_prio);
1604 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1605 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1606 priv->reply_agg_tx_stats.few_bytes);
1607 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1608 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1609 priv->reply_agg_tx_stats.abort);
1610 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1611 iwl_get_agg_tx_fail_reason(
1612 AGG_TX_STATE_LAST_SENT_TTL_MSK),
1613 priv->reply_agg_tx_stats.last_sent_ttl);
1614 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1615 iwl_get_agg_tx_fail_reason(
1616 AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1617 priv->reply_agg_tx_stats.last_sent_try);
1618 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1619 iwl_get_agg_tx_fail_reason(
1620 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1621 priv->reply_agg_tx_stats.last_sent_bt_kill);
1622 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1623 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1624 priv->reply_agg_tx_stats.scd_query);
1625 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1626 iwl_get_agg_tx_fail_reason(
1627 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1628 priv->reply_agg_tx_stats.bad_crc32);
1629 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1630 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1631 priv->reply_agg_tx_stats.response);
1632 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1633 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1634 priv->reply_agg_tx_stats.dump_tx);
1635 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1636 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1637 priv->reply_agg_tx_stats.delay_tx);
1638 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1639 priv->reply_agg_tx_stats.unknown);
1640
1641 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1642 kfree(buf);
1643 return ret;
1644 }
1645
iwl_dbgfs_sensitivity_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1646 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1647 char __user *user_buf,
1648 size_t count, loff_t *ppos) {
1649
1650 struct iwl_priv *priv = file->private_data;
1651 int pos = 0;
1652 int cnt = 0;
1653 char *buf;
1654 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1655 ssize_t ret;
1656 struct iwl_sensitivity_data *data;
1657
1658 data = &priv->sensitivity_data;
1659 buf = kzalloc(bufsz, GFP_KERNEL);
1660 if (!buf)
1661 return -ENOMEM;
1662
1663 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1664 data->auto_corr_ofdm);
1665 pos += scnprintf(buf + pos, bufsz - pos,
1666 "auto_corr_ofdm_mrc:\t\t %u\n",
1667 data->auto_corr_ofdm_mrc);
1668 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1669 data->auto_corr_ofdm_x1);
1670 pos += scnprintf(buf + pos, bufsz - pos,
1671 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1672 data->auto_corr_ofdm_mrc_x1);
1673 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1674 data->auto_corr_cck);
1675 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1676 data->auto_corr_cck_mrc);
1677 pos += scnprintf(buf + pos, bufsz - pos,
1678 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1679 data->last_bad_plcp_cnt_ofdm);
1680 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1681 data->last_fa_cnt_ofdm);
1682 pos += scnprintf(buf + pos, bufsz - pos,
1683 "last_bad_plcp_cnt_cck:\t\t %u\n",
1684 data->last_bad_plcp_cnt_cck);
1685 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1686 data->last_fa_cnt_cck);
1687 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1688 data->nrg_curr_state);
1689 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1690 data->nrg_prev_state);
1691 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1692 for (cnt = 0; cnt < 10; cnt++) {
1693 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1694 data->nrg_value[cnt]);
1695 }
1696 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1697 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1698 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1699 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1700 data->nrg_silence_rssi[cnt]);
1701 }
1702 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1703 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1704 data->nrg_silence_ref);
1705 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1706 data->nrg_energy_idx);
1707 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1708 data->nrg_silence_idx);
1709 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1710 data->nrg_th_cck);
1711 pos += scnprintf(buf + pos, bufsz - pos,
1712 "nrg_auto_corr_silence_diff:\t %u\n",
1713 data->nrg_auto_corr_silence_diff);
1714 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1715 data->num_in_cck_no_fa);
1716 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1717 data->nrg_th_ofdm);
1718
1719 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1720 kfree(buf);
1721 return ret;
1722 }
1723
1724
iwl_dbgfs_chain_noise_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1725 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1726 char __user *user_buf,
1727 size_t count, loff_t *ppos) {
1728
1729 struct iwl_priv *priv = file->private_data;
1730 int pos = 0;
1731 int cnt = 0;
1732 char *buf;
1733 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1734 ssize_t ret;
1735 struct iwl_chain_noise_data *data;
1736
1737 data = &priv->chain_noise_data;
1738 buf = kzalloc(bufsz, GFP_KERNEL);
1739 if (!buf)
1740 return -ENOMEM;
1741
1742 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1743 data->active_chains);
1744 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1745 data->chain_noise_a);
1746 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1747 data->chain_noise_b);
1748 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1749 data->chain_noise_c);
1750 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1751 data->chain_signal_a);
1752 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1753 data->chain_signal_b);
1754 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1755 data->chain_signal_c);
1756 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1757 data->beacon_count);
1758
1759 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1760 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1761 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1762 data->disconn_array[cnt]);
1763 }
1764 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1765 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1766 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1767 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1768 data->delta_gain_code[cnt]);
1769 }
1770 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1771 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1772 data->radio_write);
1773 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1774 data->state);
1775
1776 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1777 kfree(buf);
1778 return ret;
1779 }
1780
iwl_dbgfs_power_save_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1781 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1782 char __user *user_buf,
1783 size_t count, loff_t *ppos)
1784 {
1785 struct iwl_priv *priv = file->private_data;
1786 char buf[60];
1787 int pos = 0;
1788 const size_t bufsz = sizeof(buf);
1789 u32 pwrsave_status;
1790
1791 pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1792 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1793
1794 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1795 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1796 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1797 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1798 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1799 "error");
1800
1801 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1802 }
1803
iwl_dbgfs_clear_ucode_statistics_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1804 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1805 const char __user *user_buf,
1806 size_t count, loff_t *ppos)
1807 {
1808 struct iwl_priv *priv = file->private_data;
1809 char buf[8];
1810 int buf_size;
1811 int clear;
1812
1813 memset(buf, 0, sizeof(buf));
1814 buf_size = min(count, sizeof(buf) - 1);
1815 if (copy_from_user(buf, user_buf, buf_size))
1816 return -EFAULT;
1817 if (sscanf(buf, "%d", &clear) != 1)
1818 return -EFAULT;
1819
1820 /* make request to uCode to retrieve statistics information */
1821 mutex_lock(&priv->mutex);
1822 iwl_send_statistics_request(priv, 0, true);
1823 mutex_unlock(&priv->mutex);
1824
1825 return count;
1826 }
1827
iwl_dbgfs_ucode_tracing_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1828 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1829 char __user *user_buf,
1830 size_t count, loff_t *ppos) {
1831
1832 struct iwl_priv *priv = file->private_data;
1833 int pos = 0;
1834 char buf[128];
1835 const size_t bufsz = sizeof(buf);
1836
1837 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1838 priv->event_log.ucode_trace ? "On" : "Off");
1839 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1840 priv->event_log.non_wraps_count);
1841 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1842 priv->event_log.wraps_once_count);
1843 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1844 priv->event_log.wraps_more_count);
1845
1846 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1847 }
1848
iwl_dbgfs_ucode_tracing_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1849 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1850 const char __user *user_buf,
1851 size_t count, loff_t *ppos)
1852 {
1853 struct iwl_priv *priv = file->private_data;
1854 char buf[8];
1855 int buf_size;
1856 int trace;
1857
1858 memset(buf, 0, sizeof(buf));
1859 buf_size = min(count, sizeof(buf) - 1);
1860 if (copy_from_user(buf, user_buf, buf_size))
1861 return -EFAULT;
1862 if (sscanf(buf, "%d", &trace) != 1)
1863 return -EFAULT;
1864
1865 if (trace) {
1866 priv->event_log.ucode_trace = true;
1867 if (iwl_is_alive(priv)) {
1868 /* start collecting data now */
1869 mod_timer(&priv->ucode_trace, jiffies);
1870 }
1871 } else {
1872 priv->event_log.ucode_trace = false;
1873 del_timer_sync(&priv->ucode_trace);
1874 }
1875
1876 return count;
1877 }
1878
iwl_dbgfs_rxon_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1879 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1880 char __user *user_buf,
1881 size_t count, loff_t *ppos) {
1882
1883 struct iwl_priv *priv = file->private_data;
1884 int len = 0;
1885 char buf[20];
1886
1887 len = sprintf(buf, "0x%04X\n",
1888 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1889 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1890 }
1891
iwl_dbgfs_rxon_filter_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1892 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1893 char __user *user_buf,
1894 size_t count, loff_t *ppos) {
1895
1896 struct iwl_priv *priv = file->private_data;
1897 int len = 0;
1898 char buf[20];
1899
1900 len = sprintf(buf, "0x%04X\n",
1901 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1902 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1903 }
1904
iwl_dbgfs_missed_beacon_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1905 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1906 char __user *user_buf,
1907 size_t count, loff_t *ppos) {
1908
1909 struct iwl_priv *priv = file->private_data;
1910 int pos = 0;
1911 char buf[12];
1912 const size_t bufsz = sizeof(buf);
1913
1914 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1915 priv->missed_beacon_threshold);
1916
1917 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1918 }
1919
iwl_dbgfs_missed_beacon_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1920 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1921 const char __user *user_buf,
1922 size_t count, loff_t *ppos)
1923 {
1924 struct iwl_priv *priv = file->private_data;
1925 char buf[8];
1926 int buf_size;
1927 int missed;
1928
1929 memset(buf, 0, sizeof(buf));
1930 buf_size = min(count, sizeof(buf) - 1);
1931 if (copy_from_user(buf, user_buf, buf_size))
1932 return -EFAULT;
1933 if (sscanf(buf, "%d", &missed) != 1)
1934 return -EINVAL;
1935
1936 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1937 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1938 priv->missed_beacon_threshold =
1939 IWL_MISSED_BEACON_THRESHOLD_DEF;
1940 else
1941 priv->missed_beacon_threshold = missed;
1942
1943 return count;
1944 }
1945
iwl_dbgfs_plcp_delta_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1946 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1947 char __user *user_buf,
1948 size_t count, loff_t *ppos) {
1949
1950 struct iwl_priv *priv = file->private_data;
1951 int pos = 0;
1952 char buf[12];
1953 const size_t bufsz = sizeof(buf);
1954
1955 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1956 priv->plcp_delta_threshold);
1957
1958 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1959 }
1960
iwl_dbgfs_plcp_delta_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1961 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1962 const char __user *user_buf,
1963 size_t count, loff_t *ppos) {
1964
1965 struct iwl_priv *priv = file->private_data;
1966 char buf[8];
1967 int buf_size;
1968 int plcp;
1969
1970 memset(buf, 0, sizeof(buf));
1971 buf_size = min(count, sizeof(buf) - 1);
1972 if (copy_from_user(buf, user_buf, buf_size))
1973 return -EFAULT;
1974 if (sscanf(buf, "%d", &plcp) != 1)
1975 return -EINVAL;
1976 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1977 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1978 priv->plcp_delta_threshold =
1979 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1980 else
1981 priv->plcp_delta_threshold = plcp;
1982 return count;
1983 }
1984
iwl_dbgfs_rf_reset_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1985 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
1986 char __user *user_buf,
1987 size_t count, loff_t *ppos)
1988 {
1989 struct iwl_priv *priv = file->private_data;
1990 int pos = 0;
1991 char buf[300];
1992 const size_t bufsz = sizeof(buf);
1993 struct iwl_rf_reset *rf_reset = &priv->rf_reset;
1994
1995 pos += scnprintf(buf + pos, bufsz - pos,
1996 "RF reset statistics\n");
1997 pos += scnprintf(buf + pos, bufsz - pos,
1998 "\tnumber of reset request: %d\n",
1999 rf_reset->reset_request_count);
2000 pos += scnprintf(buf + pos, bufsz - pos,
2001 "\tnumber of reset request success: %d\n",
2002 rf_reset->reset_success_count);
2003 pos += scnprintf(buf + pos, bufsz - pos,
2004 "\tnumber of reset request reject: %d\n",
2005 rf_reset->reset_reject_count);
2006
2007 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008 }
2009
iwl_dbgfs_rf_reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2010 static ssize_t iwl_dbgfs_rf_reset_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 int ret;
2016
2017 ret = iwl_force_rf_reset(priv, true);
2018 return ret ? ret : count;
2019 }
2020
iwl_dbgfs_txfifo_flush_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2021 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2022 const char __user *user_buf,
2023 size_t count, loff_t *ppos) {
2024
2025 struct iwl_priv *priv = file->private_data;
2026 char buf[8];
2027 int buf_size;
2028 int flush;
2029
2030 memset(buf, 0, sizeof(buf));
2031 buf_size = min(count, sizeof(buf) - 1);
2032 if (copy_from_user(buf, user_buf, buf_size))
2033 return -EFAULT;
2034 if (sscanf(buf, "%d", &flush) != 1)
2035 return -EINVAL;
2036
2037 if (iwl_is_rfkill(priv))
2038 return -EFAULT;
2039
2040 iwlagn_dev_txfifo_flush(priv);
2041
2042 return count;
2043 }
2044
iwl_dbgfs_bt_traffic_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2045 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2046 char __user *user_buf,
2047 size_t count, loff_t *ppos) {
2048
2049 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2050 int pos = 0;
2051 char buf[200];
2052 const size_t bufsz = sizeof(buf);
2053
2054 if (!priv->bt_enable_flag) {
2055 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2056 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057 }
2058 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2059 priv->bt_enable_flag);
2060 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2061 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2062 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2063 "last traffic notif: %d\n",
2064 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2065 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2066 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2067 priv->bt_ch_announce, priv->kill_ack_mask,
2068 priv->kill_cts_mask);
2069
2070 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2071 switch (priv->bt_traffic_load) {
2072 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2073 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2074 break;
2075 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2076 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2077 break;
2078 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2079 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2080 break;
2081 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2082 default:
2083 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2084 break;
2085 }
2086
2087 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2088 }
2089
iwl_dbgfs_protection_mode_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2090 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2091 char __user *user_buf,
2092 size_t count, loff_t *ppos)
2093 {
2094 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2095
2096 int pos = 0;
2097 char buf[40];
2098 const size_t bufsz = sizeof(buf);
2099
2100 if (priv->cfg->ht_params)
2101 pos += scnprintf(buf + pos, bufsz - pos,
2102 "use %s for aggregation\n",
2103 (priv->hw_params.use_rts_for_aggregation) ?
2104 "rts/cts" : "cts-to-self");
2105 else
2106 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2107
2108 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2109 }
2110
iwl_dbgfs_protection_mode_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2111 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2112 const char __user *user_buf,
2113 size_t count, loff_t *ppos) {
2114
2115 struct iwl_priv *priv = file->private_data;
2116 char buf[8];
2117 int buf_size;
2118 int rts;
2119
2120 if (!priv->cfg->ht_params)
2121 return -EINVAL;
2122
2123 memset(buf, 0, sizeof(buf));
2124 buf_size = min(count, sizeof(buf) - 1);
2125 if (copy_from_user(buf, user_buf, buf_size))
2126 return -EFAULT;
2127 if (sscanf(buf, "%d", &rts) != 1)
2128 return -EINVAL;
2129 if (rts)
2130 priv->hw_params.use_rts_for_aggregation = true;
2131 else
2132 priv->hw_params.use_rts_for_aggregation = false;
2133 return count;
2134 }
2135
iwl_cmd_echo_test(struct iwl_priv * priv)2136 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2137 {
2138 int ret;
2139 struct iwl_host_cmd cmd = {
2140 .id = REPLY_ECHO,
2141 .len = { 0 },
2142 };
2143
2144 ret = iwl_dvm_send_cmd(priv, &cmd);
2145 if (ret)
2146 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2147 else
2148 IWL_DEBUG_INFO(priv, "echo testing pass\n");
2149 return ret;
2150 }
2151
iwl_dbgfs_echo_test_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2152 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2153 const char __user *user_buf,
2154 size_t count, loff_t *ppos)
2155 {
2156 struct iwl_priv *priv = file->private_data;
2157 char buf[8];
2158 int buf_size;
2159
2160 memset(buf, 0, sizeof(buf));
2161 buf_size = min(count, sizeof(buf) - 1);
2162 if (copy_from_user(buf, user_buf, buf_size))
2163 return -EFAULT;
2164
2165 iwl_cmd_echo_test(priv);
2166 return count;
2167 }
2168
2169 #ifdef CONFIG_IWLWIFI_DEBUG
iwl_dbgfs_log_event_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2170 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2171 char __user *user_buf,
2172 size_t count, loff_t *ppos)
2173 {
2174 struct iwl_priv *priv = file->private_data;
2175 char *buf = NULL;
2176 ssize_t ret;
2177
2178 ret = iwl_dump_nic_event_log(priv, true, &buf);
2179 if (ret > 0)
2180 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2181 kfree(buf);
2182 return ret;
2183 }
2184
iwl_dbgfs_log_event_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2185 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2186 const char __user *user_buf,
2187 size_t count, loff_t *ppos)
2188 {
2189 struct iwl_priv *priv = file->private_data;
2190 u32 event_log_flag;
2191 char buf[8];
2192 int buf_size;
2193
2194 /* check that the interface is up */
2195 if (!iwl_is_ready(priv))
2196 return -EAGAIN;
2197
2198 memset(buf, 0, sizeof(buf));
2199 buf_size = min(count, sizeof(buf) - 1);
2200 if (copy_from_user(buf, user_buf, buf_size))
2201 return -EFAULT;
2202 if (sscanf(buf, "%u", &event_log_flag) != 1)
2203 return -EFAULT;
2204 if (event_log_flag == 1)
2205 iwl_dump_nic_event_log(priv, true, NULL);
2206
2207 return count;
2208 }
2209 #endif
2210
iwl_dbgfs_calib_disabled_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2211 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2212 char __user *user_buf,
2213 size_t count, loff_t *ppos)
2214 {
2215 struct iwl_priv *priv = file->private_data;
2216 char buf[120];
2217 int pos = 0;
2218 const size_t bufsz = sizeof(buf);
2219
2220 pos += scnprintf(buf + pos, bufsz - pos,
2221 "Sensitivity calibrations %s\n",
2222 (priv->calib_disabled &
2223 IWL_SENSITIVITY_CALIB_DISABLED) ?
2224 "DISABLED" : "ENABLED");
2225 pos += scnprintf(buf + pos, bufsz - pos,
2226 "Chain noise calibrations %s\n",
2227 (priv->calib_disabled &
2228 IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2229 "DISABLED" : "ENABLED");
2230 pos += scnprintf(buf + pos, bufsz - pos,
2231 "Tx power calibrations %s\n",
2232 (priv->calib_disabled &
2233 IWL_TX_POWER_CALIB_DISABLED) ?
2234 "DISABLED" : "ENABLED");
2235
2236 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2237 }
2238
iwl_dbgfs_calib_disabled_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2239 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2240 const char __user *user_buf,
2241 size_t count, loff_t *ppos)
2242 {
2243 struct iwl_priv *priv = file->private_data;
2244 char buf[8];
2245 u32 calib_disabled;
2246 int buf_size;
2247
2248 memset(buf, 0, sizeof(buf));
2249 buf_size = min(count, sizeof(buf) - 1);
2250 if (copy_from_user(buf, user_buf, buf_size))
2251 return -EFAULT;
2252 if (sscanf(buf, "%x", &calib_disabled) != 1)
2253 return -EFAULT;
2254
2255 priv->calib_disabled = calib_disabled;
2256
2257 return count;
2258 }
2259
iwl_dbgfs_fw_restart_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2260 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2261 const char __user *user_buf,
2262 size_t count, loff_t *ppos)
2263 {
2264 struct iwl_priv *priv = file->private_data;
2265 bool fw_restart = iwlwifi_mod_params.fw_restart;
2266 int __maybe_unused ret;
2267
2268 iwlwifi_mod_params.fw_restart = true;
2269
2270 mutex_lock(&priv->mutex);
2271
2272 /* take the return value to make compiler happy - it will fail anyway */
2273 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2274
2275 mutex_unlock(&priv->mutex);
2276
2277 iwlwifi_mod_params.fw_restart = fw_restart;
2278
2279 return count;
2280 }
2281
2282 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2283 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2284 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2285 DEBUGFS_READ_FILE_OPS(sensitivity);
2286 DEBUGFS_READ_FILE_OPS(chain_noise);
2287 DEBUGFS_READ_FILE_OPS(power_save_status);
2288 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2289 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2290 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2291 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2292 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2293 DEBUGFS_READ_FILE_OPS(rxon_flags);
2294 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2295 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2296 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2297 DEBUGFS_READ_FILE_OPS(bt_traffic);
2298 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2299 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2300 DEBUGFS_WRITE_FILE_OPS(echo_test);
2301 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2302 #ifdef CONFIG_IWLWIFI_DEBUG
2303 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2304 #endif
2305 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2306
2307 /*
2308 * Create the debugfs files and directories
2309 *
2310 */
iwl_dbgfs_register(struct iwl_priv * priv,struct dentry * dbgfs_dir)2311 void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2312 {
2313 struct dentry *dir_data, *dir_rf, *dir_debug;
2314
2315 priv->debugfs_dir = dbgfs_dir;
2316
2317 dir_data = debugfs_create_dir("data", dbgfs_dir);
2318 dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2319 dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2320
2321 DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
2322 DEBUGFS_ADD_FILE(sram, dir_data, 0600);
2323 DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400);
2324 DEBUGFS_ADD_FILE(stations, dir_data, 0400);
2325 DEBUGFS_ADD_FILE(channels, dir_data, 0400);
2326 DEBUGFS_ADD_FILE(status, dir_data, 0400);
2327 DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600);
2328 DEBUGFS_ADD_FILE(qos, dir_data, 0400);
2329 DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600);
2330 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400);
2331 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400);
2332 DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600);
2333 DEBUGFS_ADD_FILE(temperature, dir_data, 0400);
2334
2335 DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400);
2336 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200);
2337 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200);
2338 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600);
2339 DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600);
2340 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400);
2341 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400);
2342 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400);
2343 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200);
2344 DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600);
2345 DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400);
2346 DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400);
2347 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600);
2348 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400);
2349 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400);
2350 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200);
2351 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200);
2352 DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200);
2353 DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200);
2354 #ifdef CONFIG_IWLWIFI_DEBUG
2355 DEBUGFS_ADD_FILE(log_event, dir_debug, 0600);
2356 #endif
2357
2358 if (iwl_advanced_bt_coexist(priv))
2359 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400);
2360
2361 /* Calibrations disabled/enabled status*/
2362 DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600);
2363
2364 /*
2365 * Create a symlink with mac80211. This is not very robust, as it does
2366 * not remove the symlink created. The implicit assumption is that
2367 * when the opmode exits, mac80211 will also exit, and will remove
2368 * this symlink as part of its cleanup.
2369 */
2370 if (priv->mac80211_registered) {
2371 char buf[100];
2372 struct dentry *mac80211_dir, *dev_dir;
2373
2374 dev_dir = dbgfs_dir->d_parent;
2375 mac80211_dir = priv->hw->wiphy->debugfsdir;
2376
2377 snprintf(buf, 100, "../../%pd2", dev_dir);
2378
2379 debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
2380 }
2381 }
2382