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 * Contact Information:
8 * Intel Linux Wireless <linuxwifi@intel.com>
9 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
10 *****************************************************************************/
11
12 #include <linux/slab.h>
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/debugfs.h>
16 #include <linux/ieee80211.h>
17 #include <net/mac80211.h>
18
19 #include "iwl-debug.h"
20 #include "iwl-trans.h"
21 #include "iwl-io.h"
22 #include "dev.h"
23 #include "agn.h"
24
25 /* create and remove of files */
26 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
27 debugfs_create_file(#name, mode, parent, priv, \
28 &iwl_dbgfs_##name##_ops); \
29 } while (0)
30
31 /* file operation */
32 #define DEBUGFS_READ_FILE_OPS(name) \
33 static const struct file_operations iwl_dbgfs_##name##_ops = { \
34 .read = iwl_dbgfs_##name##_read, \
35 .open = simple_open, \
36 .llseek = generic_file_llseek, \
37 };
38
39 #define DEBUGFS_WRITE_FILE_OPS(name) \
40 static const struct file_operations iwl_dbgfs_##name##_ops = { \
41 .write = iwl_dbgfs_##name##_write, \
42 .open = simple_open, \
43 .llseek = generic_file_llseek, \
44 };
45
46
47 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
48 static const struct file_operations iwl_dbgfs_##name##_ops = { \
49 .write = iwl_dbgfs_##name##_write, \
50 .read = iwl_dbgfs_##name##_read, \
51 .open = simple_open, \
52 .llseek = generic_file_llseek, \
53 };
54
iwl_dbgfs_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)55 static ssize_t iwl_dbgfs_sram_read(struct file *file,
56 char __user *user_buf,
57 size_t count, loff_t *ppos)
58 {
59 u32 val = 0;
60 char *buf;
61 ssize_t ret;
62 int i = 0;
63 bool device_format = false;
64 int offset = 0;
65 int len = 0;
66 int pos = 0;
67 int sram;
68 struct iwl_priv *priv = file->private_data;
69 const struct fw_img *img;
70 size_t bufsz;
71
72 if (!iwl_is_ready_rf(priv))
73 return -EAGAIN;
74
75 /* default is to dump the entire data segment */
76 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
77 priv->dbgfs_sram_offset = 0x800000;
78 if (!priv->ucode_loaded)
79 return -EINVAL;
80 img = &priv->fw->img[priv->cur_ucode];
81 priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
82 }
83 len = priv->dbgfs_sram_len;
84
85 if (len == -4) {
86 device_format = true;
87 len = 4;
88 }
89
90 bufsz = 50 + len * 4;
91 buf = kmalloc(bufsz, GFP_KERNEL);
92 if (!buf)
93 return -ENOMEM;
94
95 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
96 len);
97 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
98 priv->dbgfs_sram_offset);
99
100 /* adjust sram address since reads are only on even u32 boundaries */
101 offset = priv->dbgfs_sram_offset & 0x3;
102 sram = priv->dbgfs_sram_offset & ~0x3;
103
104 /* read the first u32 from sram */
105 val = iwl_trans_read_mem32(priv->trans, sram);
106
107 for (; len; len--) {
108 /* put the address at the start of every line */
109 if (i == 0)
110 pos += scnprintf(buf + pos, bufsz - pos,
111 "%08X: ", sram + offset);
112
113 if (device_format)
114 pos += scnprintf(buf + pos, bufsz - pos,
115 "%02x", (val >> (8 * (3 - offset))) & 0xff);
116 else
117 pos += scnprintf(buf + pos, bufsz - pos,
118 "%02x ", (val >> (8 * offset)) & 0xff);
119
120 /* if all bytes processed, read the next u32 from sram */
121 if (++offset == 4) {
122 sram += 4;
123 offset = 0;
124 val = iwl_trans_read_mem32(priv->trans, sram);
125 }
126
127 /* put in extra spaces and split lines for human readability */
128 if (++i == 16) {
129 i = 0;
130 pos += scnprintf(buf + pos, bufsz - pos, "\n");
131 } else if (!(i & 7)) {
132 pos += scnprintf(buf + pos, bufsz - pos, " ");
133 } else if (!(i & 3)) {
134 pos += scnprintf(buf + pos, bufsz - pos, " ");
135 }
136 }
137 if (i)
138 pos += scnprintf(buf + pos, bufsz - pos, "\n");
139
140 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
141 kfree(buf);
142 return ret;
143 }
144
iwl_dbgfs_sram_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)145 static ssize_t iwl_dbgfs_sram_write(struct file *file,
146 const char __user *user_buf,
147 size_t count, loff_t *ppos)
148 {
149 struct iwl_priv *priv = file->private_data;
150 char buf[64];
151 int buf_size;
152 u32 offset, len;
153
154 memset(buf, 0, sizeof(buf));
155 buf_size = min(count, sizeof(buf) - 1);
156 if (copy_from_user(buf, user_buf, buf_size))
157 return -EFAULT;
158
159 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
160 priv->dbgfs_sram_offset = offset;
161 priv->dbgfs_sram_len = len;
162 } else if (sscanf(buf, "%x", &offset) == 1) {
163 priv->dbgfs_sram_offset = offset;
164 priv->dbgfs_sram_len = -4;
165 } else {
166 priv->dbgfs_sram_offset = 0;
167 priv->dbgfs_sram_len = 0;
168 }
169
170 return count;
171 }
172
iwl_dbgfs_wowlan_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)173 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
174 char __user *user_buf,
175 size_t count, loff_t *ppos)
176 {
177 struct iwl_priv *priv = file->private_data;
178 const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
179
180 if (!priv->wowlan_sram)
181 return -ENODATA;
182
183 return simple_read_from_buffer(user_buf, count, ppos,
184 priv->wowlan_sram,
185 img->sec[IWL_UCODE_SECTION_DATA].len);
186 }
iwl_dbgfs_stations_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)187 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
188 size_t count, loff_t *ppos)
189 {
190 struct iwl_priv *priv = file->private_data;
191 struct iwl_station_entry *station;
192 struct iwl_tid_data *tid_data;
193 char *buf;
194 int i, j, pos = 0;
195 ssize_t ret;
196 /* Add 30 for initial string */
197 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
198
199 buf = kmalloc(bufsz, GFP_KERNEL);
200 if (!buf)
201 return -ENOMEM;
202
203 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
204 priv->num_stations);
205
206 for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
207 station = &priv->stations[i];
208 if (!station->used)
209 continue;
210 pos += scnprintf(buf + pos, bufsz - pos,
211 "station %d - addr: %pM, flags: %#x\n",
212 i, station->sta.sta.addr,
213 station->sta.station_flags_msk);
214 pos += scnprintf(buf + pos, bufsz - pos,
215 "TID seqno next_rclmd "
216 "rate_n_flags state txq\n");
217
218 for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
219 tid_data = &priv->tid_data[i][j];
220 pos += scnprintf(buf + pos, bufsz - pos,
221 "%d: 0x%.4x 0x%.4x 0x%.8x "
222 "%d %.2d",
223 j, tid_data->seq_number,
224 tid_data->next_reclaimed,
225 tid_data->agg.rate_n_flags,
226 tid_data->agg.state,
227 tid_data->agg.txq_id);
228
229 if (tid_data->agg.wait_for_ba)
230 pos += scnprintf(buf + pos, bufsz - pos,
231 " - waitforba");
232 pos += scnprintf(buf + pos, bufsz - pos, "\n");
233 }
234
235 pos += scnprintf(buf + pos, bufsz - pos, "\n");
236 }
237
238 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
239 kfree(buf);
240 return ret;
241 }
242
iwl_dbgfs_nvm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)243 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
244 char __user *user_buf,
245 size_t count,
246 loff_t *ppos)
247 {
248 ssize_t ret;
249 struct iwl_priv *priv = file->private_data;
250 int pos = 0, ofs = 0, buf_size = 0;
251 const u8 *ptr;
252 char *buf;
253 u16 nvm_ver;
254 size_t eeprom_len = priv->eeprom_blob_size;
255 buf_size = 4 * eeprom_len + 256;
256
257 if (eeprom_len % 16)
258 return -ENODATA;
259
260 ptr = priv->eeprom_blob;
261 if (!ptr)
262 return -ENOMEM;
263
264 /* 4 characters for byte 0xYY */
265 buf = kzalloc(buf_size, GFP_KERNEL);
266 if (!buf)
267 return -ENOMEM;
268
269 nvm_ver = priv->nvm_data->nvm_version;
270 pos += scnprintf(buf + pos, buf_size - pos,
271 "NVM version: 0x%x\n", nvm_ver);
272 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
273 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n",
274 ofs, ptr + ofs);
275 }
276
277 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
278 kfree(buf);
279 return ret;
280 }
281
iwl_dbgfs_channels_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)282 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
283 size_t count, loff_t *ppos)
284 {
285 struct iwl_priv *priv = file->private_data;
286 struct ieee80211_channel *channels = NULL;
287 const struct ieee80211_supported_band *supp_band = NULL;
288 int pos = 0, i, bufsz = PAGE_SIZE;
289 char *buf;
290 ssize_t ret;
291
292 buf = kzalloc(bufsz, GFP_KERNEL);
293 if (!buf)
294 return -ENOMEM;
295
296 supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ);
297 if (supp_band) {
298 channels = supp_band->channels;
299
300 pos += scnprintf(buf + pos, bufsz - pos,
301 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
302 supp_band->n_channels);
303
304 for (i = 0; i < supp_band->n_channels; i++)
305 pos += scnprintf(buf + pos, bufsz - pos,
306 "%d: %ddBm: BSS%s%s, %s.\n",
307 channels[i].hw_value,
308 channels[i].max_power,
309 channels[i].flags & IEEE80211_CHAN_RADAR ?
310 " (IEEE 802.11h required)" : "",
311 ((channels[i].flags & IEEE80211_CHAN_NO_IR)
312 || (channels[i].flags &
313 IEEE80211_CHAN_RADAR)) ? "" :
314 ", IBSS",
315 channels[i].flags &
316 IEEE80211_CHAN_NO_IR ?
317 "passive only" : "active/passive");
318 }
319 supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ);
320 if (supp_band) {
321 channels = supp_band->channels;
322
323 pos += scnprintf(buf + pos, bufsz - pos,
324 "Displaying %d channels in 5.2GHz band (802.11a)\n",
325 supp_band->n_channels);
326
327 for (i = 0; i < supp_band->n_channels; i++)
328 pos += scnprintf(buf + pos, bufsz - pos,
329 "%d: %ddBm: BSS%s%s, %s.\n",
330 channels[i].hw_value,
331 channels[i].max_power,
332 channels[i].flags & IEEE80211_CHAN_RADAR ?
333 " (IEEE 802.11h required)" : "",
334 ((channels[i].flags & IEEE80211_CHAN_NO_IR)
335 || (channels[i].flags &
336 IEEE80211_CHAN_RADAR)) ? "" :
337 ", IBSS",
338 channels[i].flags &
339 IEEE80211_CHAN_NO_IR ?
340 "passive only" : "active/passive");
341 }
342 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
343 kfree(buf);
344 return ret;
345 }
346
iwl_dbgfs_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)347 static ssize_t iwl_dbgfs_status_read(struct file *file,
348 char __user *user_buf,
349 size_t count, loff_t *ppos) {
350
351 struct iwl_priv *priv = file->private_data;
352 char buf[512];
353 int pos = 0;
354 const size_t bufsz = sizeof(buf);
355
356 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
357 test_bit(STATUS_RF_KILL_HW, &priv->status));
358 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
359 test_bit(STATUS_CT_KILL, &priv->status));
360 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
361 test_bit(STATUS_ALIVE, &priv->status));
362 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
363 test_bit(STATUS_READY, &priv->status));
364 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
365 test_bit(STATUS_EXIT_PENDING, &priv->status));
366 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
367 test_bit(STATUS_STATISTICS, &priv->status));
368 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
369 test_bit(STATUS_SCANNING, &priv->status));
370 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
371 test_bit(STATUS_SCAN_ABORTING, &priv->status));
372 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
373 test_bit(STATUS_SCAN_HW, &priv->status));
374 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
375 test_bit(STATUS_POWER_PMI, &priv->status));
376 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
377 test_bit(STATUS_FW_ERROR, &priv->status));
378 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
379 }
380
iwl_dbgfs_rx_handlers_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)381 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
382 char __user *user_buf,
383 size_t count, loff_t *ppos) {
384
385 struct iwl_priv *priv = file->private_data;
386
387 int pos = 0;
388 int cnt = 0;
389 char *buf;
390 int bufsz = 24 * 64; /* 24 items * 64 char per item */
391 ssize_t ret;
392
393 buf = kzalloc(bufsz, GFP_KERNEL);
394 if (!buf)
395 return -ENOMEM;
396
397 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
398 if (priv->rx_handlers_stats[cnt] > 0)
399 pos += scnprintf(buf + pos, bufsz - pos,
400 "\tRx handler[%36s]:\t\t %u\n",
401 iwl_get_cmd_string(priv->trans, (u32)cnt),
402 priv->rx_handlers_stats[cnt]);
403 }
404
405 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
406 kfree(buf);
407 return ret;
408 }
409
iwl_dbgfs_rx_handlers_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)410 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
411 const char __user *user_buf,
412 size_t count, loff_t *ppos)
413 {
414 struct iwl_priv *priv = file->private_data;
415
416 char buf[8];
417 int buf_size;
418 u32 reset_flag;
419
420 memset(buf, 0, sizeof(buf));
421 buf_size = min(count, sizeof(buf) - 1);
422 if (copy_from_user(buf, user_buf, buf_size))
423 return -EFAULT;
424 if (sscanf(buf, "%x", &reset_flag) != 1)
425 return -EFAULT;
426 if (reset_flag == 0)
427 memset(&priv->rx_handlers_stats[0], 0,
428 sizeof(priv->rx_handlers_stats));
429
430 return count;
431 }
432
iwl_dbgfs_qos_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)433 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
434 size_t count, loff_t *ppos)
435 {
436 struct iwl_priv *priv = file->private_data;
437 struct iwl_rxon_context *ctx;
438 int pos = 0, i;
439 char buf[256 * NUM_IWL_RXON_CTX];
440 const size_t bufsz = sizeof(buf);
441
442 for_each_context(priv, ctx) {
443 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
444 ctx->ctxid);
445 for (i = 0; i < AC_NUM; i++) {
446 pos += scnprintf(buf + pos, bufsz - pos,
447 "\tcw_min\tcw_max\taifsn\ttxop\n");
448 pos += scnprintf(buf + pos, bufsz - pos,
449 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
450 ctx->qos_data.def_qos_parm.ac[i].cw_min,
451 ctx->qos_data.def_qos_parm.ac[i].cw_max,
452 ctx->qos_data.def_qos_parm.ac[i].aifsn,
453 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
454 }
455 pos += scnprintf(buf + pos, bufsz - pos, "\n");
456 }
457 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
458 }
459
iwl_dbgfs_thermal_throttling_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)460 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
461 char __user *user_buf,
462 size_t count, loff_t *ppos)
463 {
464 struct iwl_priv *priv = file->private_data;
465 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
466 struct iwl_tt_restriction *restriction;
467 char buf[100];
468 int pos = 0;
469 const size_t bufsz = sizeof(buf);
470
471 pos += scnprintf(buf + pos, bufsz - pos,
472 "Thermal Throttling Mode: %s\n",
473 tt->advanced_tt ? "Advance" : "Legacy");
474 pos += scnprintf(buf + pos, bufsz - pos,
475 "Thermal Throttling State: %d\n",
476 tt->state);
477 if (tt->advanced_tt) {
478 restriction = tt->restriction + tt->state;
479 pos += scnprintf(buf + pos, bufsz - pos,
480 "Tx mode: %d\n",
481 restriction->tx_stream);
482 pos += scnprintf(buf + pos, bufsz - pos,
483 "Rx mode: %d\n",
484 restriction->rx_stream);
485 pos += scnprintf(buf + pos, bufsz - pos,
486 "HT mode: %d\n",
487 restriction->is_ht);
488 }
489 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
490 }
491
iwl_dbgfs_disable_ht40_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)492 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
493 const char __user *user_buf,
494 size_t count, loff_t *ppos)
495 {
496 struct iwl_priv *priv = file->private_data;
497 char buf[8];
498 int buf_size;
499 int ht40;
500
501 memset(buf, 0, sizeof(buf));
502 buf_size = min(count, sizeof(buf) - 1);
503 if (copy_from_user(buf, user_buf, buf_size))
504 return -EFAULT;
505 if (sscanf(buf, "%d", &ht40) != 1)
506 return -EFAULT;
507 if (!iwl_is_any_associated(priv))
508 priv->disable_ht40 = ht40 ? true : false;
509 else
510 return -EINVAL;
511
512 return count;
513 }
514
iwl_dbgfs_disable_ht40_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)515 static ssize_t iwl_dbgfs_disable_ht40_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[100];
521 int pos = 0;
522 const size_t bufsz = sizeof(buf);
523
524 pos += scnprintf(buf + pos, bufsz - pos,
525 "11n 40MHz Mode: %s\n",
526 priv->disable_ht40 ? "Disabled" : "Enabled");
527 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
528 }
529
iwl_dbgfs_temperature_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)530 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
531 char __user *user_buf,
532 size_t count, loff_t *ppos)
533 {
534 struct iwl_priv *priv = file->private_data;
535 char buf[8];
536 int pos = 0;
537 const size_t bufsz = sizeof(buf);
538
539 pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
540 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
541 }
542
543
iwl_dbgfs_sleep_level_override_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)544 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
545 const char __user *user_buf,
546 size_t count, loff_t *ppos)
547 {
548 struct iwl_priv *priv = file->private_data;
549 char buf[8];
550 int buf_size;
551 int value;
552
553 memset(buf, 0, sizeof(buf));
554 buf_size = min(count, sizeof(buf) - 1);
555 if (copy_from_user(buf, user_buf, buf_size))
556 return -EFAULT;
557
558 if (sscanf(buf, "%d", &value) != 1)
559 return -EINVAL;
560
561 /*
562 * Our users expect 0 to be "CAM", but 0 isn't actually
563 * valid here. However, let's not confuse them and present
564 * IWL_POWER_INDEX_1 as "1", not "0".
565 */
566 if (value == 0)
567 return -EINVAL;
568 else if (value > 0)
569 value -= 1;
570
571 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
572 return -EINVAL;
573
574 if (!iwl_is_ready_rf(priv))
575 return -EAGAIN;
576
577 priv->power_data.debug_sleep_level_override = value;
578
579 mutex_lock(&priv->mutex);
580 iwl_power_update_mode(priv, true);
581 mutex_unlock(&priv->mutex);
582
583 return count;
584 }
585
iwl_dbgfs_sleep_level_override_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)586 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
587 char __user *user_buf,
588 size_t count, loff_t *ppos)
589 {
590 struct iwl_priv *priv = file->private_data;
591 char buf[10];
592 int pos, value;
593 const size_t bufsz = sizeof(buf);
594
595 /* see the write function */
596 value = priv->power_data.debug_sleep_level_override;
597 if (value >= 0)
598 value += 1;
599
600 pos = scnprintf(buf, bufsz, "%d\n", value);
601 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
602 }
603
iwl_dbgfs_current_sleep_command_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)604 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
605 char __user *user_buf,
606 size_t count, loff_t *ppos)
607 {
608 struct iwl_priv *priv = file->private_data;
609 char buf[200];
610 int pos = 0, i;
611 const size_t bufsz = sizeof(buf);
612 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
613
614 pos += scnprintf(buf + pos, bufsz - pos,
615 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
616 pos += scnprintf(buf + pos, bufsz - pos,
617 "RX/TX timeout: %d/%d usec\n",
618 le32_to_cpu(cmd->rx_data_timeout),
619 le32_to_cpu(cmd->tx_data_timeout));
620 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
621 pos += scnprintf(buf + pos, bufsz - pos,
622 "sleep_interval[%d]: %d\n", i,
623 le32_to_cpu(cmd->sleep_interval[i]));
624
625 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
626 }
627
628 DEBUGFS_READ_WRITE_FILE_OPS(sram);
629 DEBUGFS_READ_FILE_OPS(wowlan_sram);
630 DEBUGFS_READ_FILE_OPS(nvm);
631 DEBUGFS_READ_FILE_OPS(stations);
632 DEBUGFS_READ_FILE_OPS(channels);
633 DEBUGFS_READ_FILE_OPS(status);
634 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
635 DEBUGFS_READ_FILE_OPS(qos);
636 DEBUGFS_READ_FILE_OPS(thermal_throttling);
637 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
638 DEBUGFS_READ_FILE_OPS(temperature);
639 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
640 DEBUGFS_READ_FILE_OPS(current_sleep_command);
641
642 #define fmt_value " %-30s %10u\n"
643 #define fmt_hex " %-30s 0x%02X\n"
644 #define fmt_table " %-30s %10u %10u %10u %10u\n"
645 #define fmt_header "%-32s current cumulative delta max\n"
646
iwl_statistics_flag(struct iwl_priv * priv,char * buf,int bufsz)647 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
648 {
649 int p = 0;
650 u32 flag;
651
652 lockdep_assert_held(&priv->statistics.lock);
653
654 flag = le32_to_cpu(priv->statistics.flag);
655
656 p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
657 if (flag & UCODE_STATISTICS_CLEAR_MSK)
658 p += scnprintf(buf + p, bufsz - p,
659 "\tStatistics have been cleared\n");
660 p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
661 (flag & UCODE_STATISTICS_FREQUENCY_MSK)
662 ? "2.4 GHz" : "5.2 GHz");
663 p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
664 (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
665 ? "enabled" : "disabled");
666
667 return p;
668 }
669
iwl_dbgfs_ucode_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)670 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
671 char __user *user_buf,
672 size_t count, loff_t *ppos)
673 {
674 struct iwl_priv *priv = file->private_data;
675 int pos = 0;
676 char *buf;
677 int bufsz = sizeof(struct statistics_rx_phy) * 40 +
678 sizeof(struct statistics_rx_non_phy) * 40 +
679 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
680 ssize_t ret;
681 struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
682 struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
683 struct statistics_rx_non_phy *general, *accum_general;
684 struct statistics_rx_non_phy *delta_general, *max_general;
685 struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
686
687 if (!iwl_is_alive(priv))
688 return -EAGAIN;
689
690 buf = kzalloc(bufsz, GFP_KERNEL);
691 if (!buf)
692 return -ENOMEM;
693
694 /*
695 * the statistic information display here is based on
696 * the last statistics notification from uCode
697 * might not reflect the current uCode activity
698 */
699 spin_lock_bh(&priv->statistics.lock);
700 ofdm = &priv->statistics.rx_ofdm;
701 cck = &priv->statistics.rx_cck;
702 general = &priv->statistics.rx_non_phy;
703 ht = &priv->statistics.rx_ofdm_ht;
704 accum_ofdm = &priv->accum_stats.rx_ofdm;
705 accum_cck = &priv->accum_stats.rx_cck;
706 accum_general = &priv->accum_stats.rx_non_phy;
707 accum_ht = &priv->accum_stats.rx_ofdm_ht;
708 delta_ofdm = &priv->delta_stats.rx_ofdm;
709 delta_cck = &priv->delta_stats.rx_cck;
710 delta_general = &priv->delta_stats.rx_non_phy;
711 delta_ht = &priv->delta_stats.rx_ofdm_ht;
712 max_ofdm = &priv->max_delta_stats.rx_ofdm;
713 max_cck = &priv->max_delta_stats.rx_cck;
714 max_general = &priv->max_delta_stats.rx_non_phy;
715 max_ht = &priv->max_delta_stats.rx_ofdm_ht;
716
717 pos += iwl_statistics_flag(priv, buf, bufsz);
718 pos += scnprintf(buf + pos, bufsz - pos,
719 fmt_header, "Statistics_Rx - OFDM:");
720 pos += scnprintf(buf + pos, bufsz - pos,
721 fmt_table, "ina_cnt:",
722 le32_to_cpu(ofdm->ina_cnt),
723 accum_ofdm->ina_cnt,
724 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
725 pos += scnprintf(buf + pos, bufsz - pos,
726 fmt_table, "fina_cnt:",
727 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
728 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
729 pos += scnprintf(buf + pos, bufsz - pos,
730 fmt_table, "plcp_err:",
731 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
732 delta_ofdm->plcp_err, max_ofdm->plcp_err);
733 pos += scnprintf(buf + pos, bufsz - pos,
734 fmt_table, "crc32_err:",
735 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
736 delta_ofdm->crc32_err, max_ofdm->crc32_err);
737 pos += scnprintf(buf + pos, bufsz - pos,
738 fmt_table, "overrun_err:",
739 le32_to_cpu(ofdm->overrun_err),
740 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
741 max_ofdm->overrun_err);
742 pos += scnprintf(buf + pos, bufsz - pos,
743 fmt_table, "early_overrun_err:",
744 le32_to_cpu(ofdm->early_overrun_err),
745 accum_ofdm->early_overrun_err,
746 delta_ofdm->early_overrun_err,
747 max_ofdm->early_overrun_err);
748 pos += scnprintf(buf + pos, bufsz - pos,
749 fmt_table, "crc32_good:",
750 le32_to_cpu(ofdm->crc32_good),
751 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
752 max_ofdm->crc32_good);
753 pos += scnprintf(buf + pos, bufsz - pos,
754 fmt_table, "false_alarm_cnt:",
755 le32_to_cpu(ofdm->false_alarm_cnt),
756 accum_ofdm->false_alarm_cnt,
757 delta_ofdm->false_alarm_cnt,
758 max_ofdm->false_alarm_cnt);
759 pos += scnprintf(buf + pos, bufsz - pos,
760 fmt_table, "fina_sync_err_cnt:",
761 le32_to_cpu(ofdm->fina_sync_err_cnt),
762 accum_ofdm->fina_sync_err_cnt,
763 delta_ofdm->fina_sync_err_cnt,
764 max_ofdm->fina_sync_err_cnt);
765 pos += scnprintf(buf + pos, bufsz - pos,
766 fmt_table, "sfd_timeout:",
767 le32_to_cpu(ofdm->sfd_timeout),
768 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
769 max_ofdm->sfd_timeout);
770 pos += scnprintf(buf + pos, bufsz - pos,
771 fmt_table, "fina_timeout:",
772 le32_to_cpu(ofdm->fina_timeout),
773 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
774 max_ofdm->fina_timeout);
775 pos += scnprintf(buf + pos, bufsz - pos,
776 fmt_table, "unresponded_rts:",
777 le32_to_cpu(ofdm->unresponded_rts),
778 accum_ofdm->unresponded_rts,
779 delta_ofdm->unresponded_rts,
780 max_ofdm->unresponded_rts);
781 pos += scnprintf(buf + pos, bufsz - pos,
782 fmt_table, "rxe_frame_lmt_ovrun:",
783 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
784 accum_ofdm->rxe_frame_limit_overrun,
785 delta_ofdm->rxe_frame_limit_overrun,
786 max_ofdm->rxe_frame_limit_overrun);
787 pos += scnprintf(buf + pos, bufsz - pos,
788 fmt_table, "sent_ack_cnt:",
789 le32_to_cpu(ofdm->sent_ack_cnt),
790 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
791 max_ofdm->sent_ack_cnt);
792 pos += scnprintf(buf + pos, bufsz - pos,
793 fmt_table, "sent_cts_cnt:",
794 le32_to_cpu(ofdm->sent_cts_cnt),
795 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
796 max_ofdm->sent_cts_cnt);
797 pos += scnprintf(buf + pos, bufsz - pos,
798 fmt_table, "sent_ba_rsp_cnt:",
799 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
800 accum_ofdm->sent_ba_rsp_cnt,
801 delta_ofdm->sent_ba_rsp_cnt,
802 max_ofdm->sent_ba_rsp_cnt);
803 pos += scnprintf(buf + pos, bufsz - pos,
804 fmt_table, "dsp_self_kill:",
805 le32_to_cpu(ofdm->dsp_self_kill),
806 accum_ofdm->dsp_self_kill,
807 delta_ofdm->dsp_self_kill,
808 max_ofdm->dsp_self_kill);
809 pos += scnprintf(buf + pos, bufsz - pos,
810 fmt_table, "mh_format_err:",
811 le32_to_cpu(ofdm->mh_format_err),
812 accum_ofdm->mh_format_err,
813 delta_ofdm->mh_format_err,
814 max_ofdm->mh_format_err);
815 pos += scnprintf(buf + pos, bufsz - pos,
816 fmt_table, "re_acq_main_rssi_sum:",
817 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
818 accum_ofdm->re_acq_main_rssi_sum,
819 delta_ofdm->re_acq_main_rssi_sum,
820 max_ofdm->re_acq_main_rssi_sum);
821
822 pos += scnprintf(buf + pos, bufsz - pos,
823 fmt_header, "Statistics_Rx - CCK:");
824 pos += scnprintf(buf + pos, bufsz - pos,
825 fmt_table, "ina_cnt:",
826 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
827 delta_cck->ina_cnt, max_cck->ina_cnt);
828 pos += scnprintf(buf + pos, bufsz - pos,
829 fmt_table, "fina_cnt:",
830 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
831 delta_cck->fina_cnt, max_cck->fina_cnt);
832 pos += scnprintf(buf + pos, bufsz - pos,
833 fmt_table, "plcp_err:",
834 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
835 delta_cck->plcp_err, max_cck->plcp_err);
836 pos += scnprintf(buf + pos, bufsz - pos,
837 fmt_table, "crc32_err:",
838 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
839 delta_cck->crc32_err, max_cck->crc32_err);
840 pos += scnprintf(buf + pos, bufsz - pos,
841 fmt_table, "overrun_err:",
842 le32_to_cpu(cck->overrun_err),
843 accum_cck->overrun_err, delta_cck->overrun_err,
844 max_cck->overrun_err);
845 pos += scnprintf(buf + pos, bufsz - pos,
846 fmt_table, "early_overrun_err:",
847 le32_to_cpu(cck->early_overrun_err),
848 accum_cck->early_overrun_err,
849 delta_cck->early_overrun_err,
850 max_cck->early_overrun_err);
851 pos += scnprintf(buf + pos, bufsz - pos,
852 fmt_table, "crc32_good:",
853 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
854 delta_cck->crc32_good, max_cck->crc32_good);
855 pos += scnprintf(buf + pos, bufsz - pos,
856 fmt_table, "false_alarm_cnt:",
857 le32_to_cpu(cck->false_alarm_cnt),
858 accum_cck->false_alarm_cnt,
859 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
860 pos += scnprintf(buf + pos, bufsz - pos,
861 fmt_table, "fina_sync_err_cnt:",
862 le32_to_cpu(cck->fina_sync_err_cnt),
863 accum_cck->fina_sync_err_cnt,
864 delta_cck->fina_sync_err_cnt,
865 max_cck->fina_sync_err_cnt);
866 pos += scnprintf(buf + pos, bufsz - pos,
867 fmt_table, "sfd_timeout:",
868 le32_to_cpu(cck->sfd_timeout),
869 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
870 max_cck->sfd_timeout);
871 pos += scnprintf(buf + pos, bufsz - pos,
872 fmt_table, "fina_timeout:",
873 le32_to_cpu(cck->fina_timeout),
874 accum_cck->fina_timeout, delta_cck->fina_timeout,
875 max_cck->fina_timeout);
876 pos += scnprintf(buf + pos, bufsz - pos,
877 fmt_table, "unresponded_rts:",
878 le32_to_cpu(cck->unresponded_rts),
879 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
880 max_cck->unresponded_rts);
881 pos += scnprintf(buf + pos, bufsz - pos,
882 fmt_table, "rxe_frame_lmt_ovrun:",
883 le32_to_cpu(cck->rxe_frame_limit_overrun),
884 accum_cck->rxe_frame_limit_overrun,
885 delta_cck->rxe_frame_limit_overrun,
886 max_cck->rxe_frame_limit_overrun);
887 pos += scnprintf(buf + pos, bufsz - pos,
888 fmt_table, "sent_ack_cnt:",
889 le32_to_cpu(cck->sent_ack_cnt),
890 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
891 max_cck->sent_ack_cnt);
892 pos += scnprintf(buf + pos, bufsz - pos,
893 fmt_table, "sent_cts_cnt:",
894 le32_to_cpu(cck->sent_cts_cnt),
895 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
896 max_cck->sent_cts_cnt);
897 pos += scnprintf(buf + pos, bufsz - pos,
898 fmt_table, "sent_ba_rsp_cnt:",
899 le32_to_cpu(cck->sent_ba_rsp_cnt),
900 accum_cck->sent_ba_rsp_cnt,
901 delta_cck->sent_ba_rsp_cnt,
902 max_cck->sent_ba_rsp_cnt);
903 pos += scnprintf(buf + pos, bufsz - pos,
904 fmt_table, "dsp_self_kill:",
905 le32_to_cpu(cck->dsp_self_kill),
906 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
907 max_cck->dsp_self_kill);
908 pos += scnprintf(buf + pos, bufsz - pos,
909 fmt_table, "mh_format_err:",
910 le32_to_cpu(cck->mh_format_err),
911 accum_cck->mh_format_err, delta_cck->mh_format_err,
912 max_cck->mh_format_err);
913 pos += scnprintf(buf + pos, bufsz - pos,
914 fmt_table, "re_acq_main_rssi_sum:",
915 le32_to_cpu(cck->re_acq_main_rssi_sum),
916 accum_cck->re_acq_main_rssi_sum,
917 delta_cck->re_acq_main_rssi_sum,
918 max_cck->re_acq_main_rssi_sum);
919
920 pos += scnprintf(buf + pos, bufsz - pos,
921 fmt_header, "Statistics_Rx - GENERAL:");
922 pos += scnprintf(buf + pos, bufsz - pos,
923 fmt_table, "bogus_cts:",
924 le32_to_cpu(general->bogus_cts),
925 accum_general->bogus_cts, delta_general->bogus_cts,
926 max_general->bogus_cts);
927 pos += scnprintf(buf + pos, bufsz - pos,
928 fmt_table, "bogus_ack:",
929 le32_to_cpu(general->bogus_ack),
930 accum_general->bogus_ack, delta_general->bogus_ack,
931 max_general->bogus_ack);
932 pos += scnprintf(buf + pos, bufsz - pos,
933 fmt_table, "non_bssid_frames:",
934 le32_to_cpu(general->non_bssid_frames),
935 accum_general->non_bssid_frames,
936 delta_general->non_bssid_frames,
937 max_general->non_bssid_frames);
938 pos += scnprintf(buf + pos, bufsz - pos,
939 fmt_table, "filtered_frames:",
940 le32_to_cpu(general->filtered_frames),
941 accum_general->filtered_frames,
942 delta_general->filtered_frames,
943 max_general->filtered_frames);
944 pos += scnprintf(buf + pos, bufsz - pos,
945 fmt_table, "non_channel_beacons:",
946 le32_to_cpu(general->non_channel_beacons),
947 accum_general->non_channel_beacons,
948 delta_general->non_channel_beacons,
949 max_general->non_channel_beacons);
950 pos += scnprintf(buf + pos, bufsz - pos,
951 fmt_table, "channel_beacons:",
952 le32_to_cpu(general->channel_beacons),
953 accum_general->channel_beacons,
954 delta_general->channel_beacons,
955 max_general->channel_beacons);
956 pos += scnprintf(buf + pos, bufsz - pos,
957 fmt_table, "num_missed_bcon:",
958 le32_to_cpu(general->num_missed_bcon),
959 accum_general->num_missed_bcon,
960 delta_general->num_missed_bcon,
961 max_general->num_missed_bcon);
962 pos += scnprintf(buf + pos, bufsz - pos,
963 fmt_table, "adc_rx_saturation_time:",
964 le32_to_cpu(general->adc_rx_saturation_time),
965 accum_general->adc_rx_saturation_time,
966 delta_general->adc_rx_saturation_time,
967 max_general->adc_rx_saturation_time);
968 pos += scnprintf(buf + pos, bufsz - pos,
969 fmt_table, "ina_detect_search_tm:",
970 le32_to_cpu(general->ina_detection_search_time),
971 accum_general->ina_detection_search_time,
972 delta_general->ina_detection_search_time,
973 max_general->ina_detection_search_time);
974 pos += scnprintf(buf + pos, bufsz - pos,
975 fmt_table, "beacon_silence_rssi_a:",
976 le32_to_cpu(general->beacon_silence_rssi_a),
977 accum_general->beacon_silence_rssi_a,
978 delta_general->beacon_silence_rssi_a,
979 max_general->beacon_silence_rssi_a);
980 pos += scnprintf(buf + pos, bufsz - pos,
981 fmt_table, "beacon_silence_rssi_b:",
982 le32_to_cpu(general->beacon_silence_rssi_b),
983 accum_general->beacon_silence_rssi_b,
984 delta_general->beacon_silence_rssi_b,
985 max_general->beacon_silence_rssi_b);
986 pos += scnprintf(buf + pos, bufsz - pos,
987 fmt_table, "beacon_silence_rssi_c:",
988 le32_to_cpu(general->beacon_silence_rssi_c),
989 accum_general->beacon_silence_rssi_c,
990 delta_general->beacon_silence_rssi_c,
991 max_general->beacon_silence_rssi_c);
992 pos += scnprintf(buf + pos, bufsz - pos,
993 fmt_table, "interference_data_flag:",
994 le32_to_cpu(general->interference_data_flag),
995 accum_general->interference_data_flag,
996 delta_general->interference_data_flag,
997 max_general->interference_data_flag);
998 pos += scnprintf(buf + pos, bufsz - pos,
999 fmt_table, "channel_load:",
1000 le32_to_cpu(general->channel_load),
1001 accum_general->channel_load,
1002 delta_general->channel_load,
1003 max_general->channel_load);
1004 pos += scnprintf(buf + pos, bufsz - pos,
1005 fmt_table, "dsp_false_alarms:",
1006 le32_to_cpu(general->dsp_false_alarms),
1007 accum_general->dsp_false_alarms,
1008 delta_general->dsp_false_alarms,
1009 max_general->dsp_false_alarms);
1010 pos += scnprintf(buf + pos, bufsz - pos,
1011 fmt_table, "beacon_rssi_a:",
1012 le32_to_cpu(general->beacon_rssi_a),
1013 accum_general->beacon_rssi_a,
1014 delta_general->beacon_rssi_a,
1015 max_general->beacon_rssi_a);
1016 pos += scnprintf(buf + pos, bufsz - pos,
1017 fmt_table, "beacon_rssi_b:",
1018 le32_to_cpu(general->beacon_rssi_b),
1019 accum_general->beacon_rssi_b,
1020 delta_general->beacon_rssi_b,
1021 max_general->beacon_rssi_b);
1022 pos += scnprintf(buf + pos, bufsz - pos,
1023 fmt_table, "beacon_rssi_c:",
1024 le32_to_cpu(general->beacon_rssi_c),
1025 accum_general->beacon_rssi_c,
1026 delta_general->beacon_rssi_c,
1027 max_general->beacon_rssi_c);
1028 pos += scnprintf(buf + pos, bufsz - pos,
1029 fmt_table, "beacon_energy_a:",
1030 le32_to_cpu(general->beacon_energy_a),
1031 accum_general->beacon_energy_a,
1032 delta_general->beacon_energy_a,
1033 max_general->beacon_energy_a);
1034 pos += scnprintf(buf + pos, bufsz - pos,
1035 fmt_table, "beacon_energy_b:",
1036 le32_to_cpu(general->beacon_energy_b),
1037 accum_general->beacon_energy_b,
1038 delta_general->beacon_energy_b,
1039 max_general->beacon_energy_b);
1040 pos += scnprintf(buf + pos, bufsz - pos,
1041 fmt_table, "beacon_energy_c:",
1042 le32_to_cpu(general->beacon_energy_c),
1043 accum_general->beacon_energy_c,
1044 delta_general->beacon_energy_c,
1045 max_general->beacon_energy_c);
1046
1047 pos += scnprintf(buf + pos, bufsz - pos,
1048 fmt_header, "Statistics_Rx - OFDM_HT:");
1049 pos += scnprintf(buf + pos, bufsz - pos,
1050 fmt_table, "plcp_err:",
1051 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1052 delta_ht->plcp_err, max_ht->plcp_err);
1053 pos += scnprintf(buf + pos, bufsz - pos,
1054 fmt_table, "overrun_err:",
1055 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1056 delta_ht->overrun_err, max_ht->overrun_err);
1057 pos += scnprintf(buf + pos, bufsz - pos,
1058 fmt_table, "early_overrun_err:",
1059 le32_to_cpu(ht->early_overrun_err),
1060 accum_ht->early_overrun_err,
1061 delta_ht->early_overrun_err,
1062 max_ht->early_overrun_err);
1063 pos += scnprintf(buf + pos, bufsz - pos,
1064 fmt_table, "crc32_good:",
1065 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1066 delta_ht->crc32_good, max_ht->crc32_good);
1067 pos += scnprintf(buf + pos, bufsz - pos,
1068 fmt_table, "crc32_err:",
1069 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1070 delta_ht->crc32_err, max_ht->crc32_err);
1071 pos += scnprintf(buf + pos, bufsz - pos,
1072 fmt_table, "mh_format_err:",
1073 le32_to_cpu(ht->mh_format_err),
1074 accum_ht->mh_format_err,
1075 delta_ht->mh_format_err, max_ht->mh_format_err);
1076 pos += scnprintf(buf + pos, bufsz - pos,
1077 fmt_table, "agg_crc32_good:",
1078 le32_to_cpu(ht->agg_crc32_good),
1079 accum_ht->agg_crc32_good,
1080 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1081 pos += scnprintf(buf + pos, bufsz - pos,
1082 fmt_table, "agg_mpdu_cnt:",
1083 le32_to_cpu(ht->agg_mpdu_cnt),
1084 accum_ht->agg_mpdu_cnt,
1085 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1086 pos += scnprintf(buf + pos, bufsz - pos,
1087 fmt_table, "agg_cnt:",
1088 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1089 delta_ht->agg_cnt, max_ht->agg_cnt);
1090 pos += scnprintf(buf + pos, bufsz - pos,
1091 fmt_table, "unsupport_mcs:",
1092 le32_to_cpu(ht->unsupport_mcs),
1093 accum_ht->unsupport_mcs,
1094 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1095
1096 spin_unlock_bh(&priv->statistics.lock);
1097
1098 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1099 kfree(buf);
1100 return ret;
1101 }
1102
iwl_dbgfs_ucode_tx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1103 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1104 char __user *user_buf,
1105 size_t count, loff_t *ppos)
1106 {
1107 struct iwl_priv *priv = file->private_data;
1108 int pos = 0;
1109 char *buf;
1110 int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1111 ssize_t ret;
1112 struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1113
1114 if (!iwl_is_alive(priv))
1115 return -EAGAIN;
1116
1117 buf = kzalloc(bufsz, GFP_KERNEL);
1118 if (!buf)
1119 return -ENOMEM;
1120
1121 /* the statistic information display here is based on
1122 * the last statistics notification from uCode
1123 * might not reflect the current uCode activity
1124 */
1125 spin_lock_bh(&priv->statistics.lock);
1126
1127 tx = &priv->statistics.tx;
1128 accum_tx = &priv->accum_stats.tx;
1129 delta_tx = &priv->delta_stats.tx;
1130 max_tx = &priv->max_delta_stats.tx;
1131
1132 pos += iwl_statistics_flag(priv, buf, bufsz);
1133 pos += scnprintf(buf + pos, bufsz - pos,
1134 fmt_header, "Statistics_Tx:");
1135 pos += scnprintf(buf + pos, bufsz - pos,
1136 fmt_table, "preamble:",
1137 le32_to_cpu(tx->preamble_cnt),
1138 accum_tx->preamble_cnt,
1139 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1140 pos += scnprintf(buf + pos, bufsz - pos,
1141 fmt_table, "rx_detected_cnt:",
1142 le32_to_cpu(tx->rx_detected_cnt),
1143 accum_tx->rx_detected_cnt,
1144 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1145 pos += scnprintf(buf + pos, bufsz - pos,
1146 fmt_table, "bt_prio_defer_cnt:",
1147 le32_to_cpu(tx->bt_prio_defer_cnt),
1148 accum_tx->bt_prio_defer_cnt,
1149 delta_tx->bt_prio_defer_cnt,
1150 max_tx->bt_prio_defer_cnt);
1151 pos += scnprintf(buf + pos, bufsz - pos,
1152 fmt_table, "bt_prio_kill_cnt:",
1153 le32_to_cpu(tx->bt_prio_kill_cnt),
1154 accum_tx->bt_prio_kill_cnt,
1155 delta_tx->bt_prio_kill_cnt,
1156 max_tx->bt_prio_kill_cnt);
1157 pos += scnprintf(buf + pos, bufsz - pos,
1158 fmt_table, "few_bytes_cnt:",
1159 le32_to_cpu(tx->few_bytes_cnt),
1160 accum_tx->few_bytes_cnt,
1161 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1162 pos += scnprintf(buf + pos, bufsz - pos,
1163 fmt_table, "cts_timeout:",
1164 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1165 delta_tx->cts_timeout, max_tx->cts_timeout);
1166 pos += scnprintf(buf + pos, bufsz - pos,
1167 fmt_table, "ack_timeout:",
1168 le32_to_cpu(tx->ack_timeout),
1169 accum_tx->ack_timeout,
1170 delta_tx->ack_timeout, max_tx->ack_timeout);
1171 pos += scnprintf(buf + pos, bufsz - pos,
1172 fmt_table, "expected_ack_cnt:",
1173 le32_to_cpu(tx->expected_ack_cnt),
1174 accum_tx->expected_ack_cnt,
1175 delta_tx->expected_ack_cnt,
1176 max_tx->expected_ack_cnt);
1177 pos += scnprintf(buf + pos, bufsz - pos,
1178 fmt_table, "actual_ack_cnt:",
1179 le32_to_cpu(tx->actual_ack_cnt),
1180 accum_tx->actual_ack_cnt,
1181 delta_tx->actual_ack_cnt,
1182 max_tx->actual_ack_cnt);
1183 pos += scnprintf(buf + pos, bufsz - pos,
1184 fmt_table, "dump_msdu_cnt:",
1185 le32_to_cpu(tx->dump_msdu_cnt),
1186 accum_tx->dump_msdu_cnt,
1187 delta_tx->dump_msdu_cnt,
1188 max_tx->dump_msdu_cnt);
1189 pos += scnprintf(buf + pos, bufsz - pos,
1190 fmt_table, "abort_nxt_frame_mismatch:",
1191 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1192 accum_tx->burst_abort_next_frame_mismatch_cnt,
1193 delta_tx->burst_abort_next_frame_mismatch_cnt,
1194 max_tx->burst_abort_next_frame_mismatch_cnt);
1195 pos += scnprintf(buf + pos, bufsz - pos,
1196 fmt_table, "abort_missing_nxt_frame:",
1197 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1198 accum_tx->burst_abort_missing_next_frame_cnt,
1199 delta_tx->burst_abort_missing_next_frame_cnt,
1200 max_tx->burst_abort_missing_next_frame_cnt);
1201 pos += scnprintf(buf + pos, bufsz - pos,
1202 fmt_table, "cts_timeout_collision:",
1203 le32_to_cpu(tx->cts_timeout_collision),
1204 accum_tx->cts_timeout_collision,
1205 delta_tx->cts_timeout_collision,
1206 max_tx->cts_timeout_collision);
1207 pos += scnprintf(buf + pos, bufsz - pos,
1208 fmt_table, "ack_ba_timeout_collision:",
1209 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1210 accum_tx->ack_or_ba_timeout_collision,
1211 delta_tx->ack_or_ba_timeout_collision,
1212 max_tx->ack_or_ba_timeout_collision);
1213 pos += scnprintf(buf + pos, bufsz - pos,
1214 fmt_table, "agg ba_timeout:",
1215 le32_to_cpu(tx->agg.ba_timeout),
1216 accum_tx->agg.ba_timeout,
1217 delta_tx->agg.ba_timeout,
1218 max_tx->agg.ba_timeout);
1219 pos += scnprintf(buf + pos, bufsz - pos,
1220 fmt_table, "agg ba_resched_frames:",
1221 le32_to_cpu(tx->agg.ba_reschedule_frames),
1222 accum_tx->agg.ba_reschedule_frames,
1223 delta_tx->agg.ba_reschedule_frames,
1224 max_tx->agg.ba_reschedule_frames);
1225 pos += scnprintf(buf + pos, bufsz - pos,
1226 fmt_table, "agg scd_query_agg_frame:",
1227 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1228 accum_tx->agg.scd_query_agg_frame_cnt,
1229 delta_tx->agg.scd_query_agg_frame_cnt,
1230 max_tx->agg.scd_query_agg_frame_cnt);
1231 pos += scnprintf(buf + pos, bufsz - pos,
1232 fmt_table, "agg scd_query_no_agg:",
1233 le32_to_cpu(tx->agg.scd_query_no_agg),
1234 accum_tx->agg.scd_query_no_agg,
1235 delta_tx->agg.scd_query_no_agg,
1236 max_tx->agg.scd_query_no_agg);
1237 pos += scnprintf(buf + pos, bufsz - pos,
1238 fmt_table, "agg scd_query_agg:",
1239 le32_to_cpu(tx->agg.scd_query_agg),
1240 accum_tx->agg.scd_query_agg,
1241 delta_tx->agg.scd_query_agg,
1242 max_tx->agg.scd_query_agg);
1243 pos += scnprintf(buf + pos, bufsz - pos,
1244 fmt_table, "agg scd_query_mismatch:",
1245 le32_to_cpu(tx->agg.scd_query_mismatch),
1246 accum_tx->agg.scd_query_mismatch,
1247 delta_tx->agg.scd_query_mismatch,
1248 max_tx->agg.scd_query_mismatch);
1249 pos += scnprintf(buf + pos, bufsz - pos,
1250 fmt_table, "agg frame_not_ready:",
1251 le32_to_cpu(tx->agg.frame_not_ready),
1252 accum_tx->agg.frame_not_ready,
1253 delta_tx->agg.frame_not_ready,
1254 max_tx->agg.frame_not_ready);
1255 pos += scnprintf(buf + pos, bufsz - pos,
1256 fmt_table, "agg underrun:",
1257 le32_to_cpu(tx->agg.underrun),
1258 accum_tx->agg.underrun,
1259 delta_tx->agg.underrun, max_tx->agg.underrun);
1260 pos += scnprintf(buf + pos, bufsz - pos,
1261 fmt_table, "agg bt_prio_kill:",
1262 le32_to_cpu(tx->agg.bt_prio_kill),
1263 accum_tx->agg.bt_prio_kill,
1264 delta_tx->agg.bt_prio_kill,
1265 max_tx->agg.bt_prio_kill);
1266 pos += scnprintf(buf + pos, bufsz - pos,
1267 fmt_table, "agg rx_ba_rsp_cnt:",
1268 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1269 accum_tx->agg.rx_ba_rsp_cnt,
1270 delta_tx->agg.rx_ba_rsp_cnt,
1271 max_tx->agg.rx_ba_rsp_cnt);
1272
1273 if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1274 pos += scnprintf(buf + pos, bufsz - pos,
1275 "tx power: (1/2 dB step)\n");
1276 if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1277 tx->tx_power.ant_a)
1278 pos += scnprintf(buf + pos, bufsz - pos,
1279 fmt_hex, "antenna A:",
1280 tx->tx_power.ant_a);
1281 if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1282 tx->tx_power.ant_b)
1283 pos += scnprintf(buf + pos, bufsz - pos,
1284 fmt_hex, "antenna B:",
1285 tx->tx_power.ant_b);
1286 if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1287 tx->tx_power.ant_c)
1288 pos += scnprintf(buf + pos, bufsz - pos,
1289 fmt_hex, "antenna C:",
1290 tx->tx_power.ant_c);
1291 }
1292
1293 spin_unlock_bh(&priv->statistics.lock);
1294
1295 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1296 kfree(buf);
1297 return ret;
1298 }
1299
iwl_dbgfs_ucode_general_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1300 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1301 char __user *user_buf,
1302 size_t count, loff_t *ppos)
1303 {
1304 struct iwl_priv *priv = file->private_data;
1305 int pos = 0;
1306 char *buf;
1307 int bufsz = sizeof(struct statistics_general) * 10 + 300;
1308 ssize_t ret;
1309 struct statistics_general_common *general, *accum_general;
1310 struct statistics_general_common *delta_general, *max_general;
1311 struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1312 struct statistics_div *div, *accum_div, *delta_div, *max_div;
1313
1314 if (!iwl_is_alive(priv))
1315 return -EAGAIN;
1316
1317 buf = kzalloc(bufsz, GFP_KERNEL);
1318 if (!buf)
1319 return -ENOMEM;
1320
1321 /* the statistic information display here is based on
1322 * the last statistics notification from uCode
1323 * might not reflect the current uCode activity
1324 */
1325
1326 spin_lock_bh(&priv->statistics.lock);
1327
1328 general = &priv->statistics.common;
1329 dbg = &priv->statistics.common.dbg;
1330 div = &priv->statistics.common.div;
1331 accum_general = &priv->accum_stats.common;
1332 accum_dbg = &priv->accum_stats.common.dbg;
1333 accum_div = &priv->accum_stats.common.div;
1334 delta_general = &priv->delta_stats.common;
1335 max_general = &priv->max_delta_stats.common;
1336 delta_dbg = &priv->delta_stats.common.dbg;
1337 max_dbg = &priv->max_delta_stats.common.dbg;
1338 delta_div = &priv->delta_stats.common.div;
1339 max_div = &priv->max_delta_stats.common.div;
1340
1341 pos += iwl_statistics_flag(priv, buf, bufsz);
1342 pos += scnprintf(buf + pos, bufsz - pos,
1343 fmt_header, "Statistics_General:");
1344 pos += scnprintf(buf + pos, bufsz - pos,
1345 fmt_value, "temperature:",
1346 le32_to_cpu(general->temperature));
1347 pos += scnprintf(buf + pos, bufsz - pos,
1348 fmt_value, "temperature_m:",
1349 le32_to_cpu(general->temperature_m));
1350 pos += scnprintf(buf + pos, bufsz - pos,
1351 fmt_value, "ttl_timestamp:",
1352 le32_to_cpu(general->ttl_timestamp));
1353 pos += scnprintf(buf + pos, bufsz - pos,
1354 fmt_table, "burst_check:",
1355 le32_to_cpu(dbg->burst_check),
1356 accum_dbg->burst_check,
1357 delta_dbg->burst_check, max_dbg->burst_check);
1358 pos += scnprintf(buf + pos, bufsz - pos,
1359 fmt_table, "burst_count:",
1360 le32_to_cpu(dbg->burst_count),
1361 accum_dbg->burst_count,
1362 delta_dbg->burst_count, max_dbg->burst_count);
1363 pos += scnprintf(buf + pos, bufsz - pos,
1364 fmt_table, "wait_for_silence_timeout_count:",
1365 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1366 accum_dbg->wait_for_silence_timeout_cnt,
1367 delta_dbg->wait_for_silence_timeout_cnt,
1368 max_dbg->wait_for_silence_timeout_cnt);
1369 pos += scnprintf(buf + pos, bufsz - pos,
1370 fmt_table, "sleep_time:",
1371 le32_to_cpu(general->sleep_time),
1372 accum_general->sleep_time,
1373 delta_general->sleep_time, max_general->sleep_time);
1374 pos += scnprintf(buf + pos, bufsz - pos,
1375 fmt_table, "slots_out:",
1376 le32_to_cpu(general->slots_out),
1377 accum_general->slots_out,
1378 delta_general->slots_out, max_general->slots_out);
1379 pos += scnprintf(buf + pos, bufsz - pos,
1380 fmt_table, "slots_idle:",
1381 le32_to_cpu(general->slots_idle),
1382 accum_general->slots_idle,
1383 delta_general->slots_idle, max_general->slots_idle);
1384 pos += scnprintf(buf + pos, bufsz - pos,
1385 fmt_table, "tx_on_a:",
1386 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1387 delta_div->tx_on_a, max_div->tx_on_a);
1388 pos += scnprintf(buf + pos, bufsz - pos,
1389 fmt_table, "tx_on_b:",
1390 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1391 delta_div->tx_on_b, max_div->tx_on_b);
1392 pos += scnprintf(buf + pos, bufsz - pos,
1393 fmt_table, "exec_time:",
1394 le32_to_cpu(div->exec_time), accum_div->exec_time,
1395 delta_div->exec_time, max_div->exec_time);
1396 pos += scnprintf(buf + pos, bufsz - pos,
1397 fmt_table, "probe_time:",
1398 le32_to_cpu(div->probe_time), accum_div->probe_time,
1399 delta_div->probe_time, max_div->probe_time);
1400 pos += scnprintf(buf + pos, bufsz - pos,
1401 fmt_table, "rx_enable_counter:",
1402 le32_to_cpu(general->rx_enable_counter),
1403 accum_general->rx_enable_counter,
1404 delta_general->rx_enable_counter,
1405 max_general->rx_enable_counter);
1406 pos += scnprintf(buf + pos, bufsz - pos,
1407 fmt_table, "num_of_sos_states:",
1408 le32_to_cpu(general->num_of_sos_states),
1409 accum_general->num_of_sos_states,
1410 delta_general->num_of_sos_states,
1411 max_general->num_of_sos_states);
1412
1413 spin_unlock_bh(&priv->statistics.lock);
1414
1415 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1416 kfree(buf);
1417 return ret;
1418 }
1419
iwl_dbgfs_ucode_bt_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1420 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1421 char __user *user_buf,
1422 size_t count, loff_t *ppos)
1423 {
1424 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1425 int pos = 0;
1426 char *buf;
1427 int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1428 ssize_t ret;
1429 struct statistics_bt_activity *bt, *accum_bt;
1430
1431 if (!iwl_is_alive(priv))
1432 return -EAGAIN;
1433
1434 if (!priv->bt_enable_flag)
1435 return -EINVAL;
1436
1437 /* make request to uCode to retrieve statistics information */
1438 mutex_lock(&priv->mutex);
1439 ret = iwl_send_statistics_request(priv, 0, false);
1440 mutex_unlock(&priv->mutex);
1441
1442 if (ret)
1443 return -EAGAIN;
1444 buf = kzalloc(bufsz, GFP_KERNEL);
1445 if (!buf)
1446 return -ENOMEM;
1447
1448 /*
1449 * the statistic information display here is based on
1450 * the last statistics notification from uCode
1451 * might not reflect the current uCode activity
1452 */
1453
1454 spin_lock_bh(&priv->statistics.lock);
1455
1456 bt = &priv->statistics.bt_activity;
1457 accum_bt = &priv->accum_stats.bt_activity;
1458
1459 pos += iwl_statistics_flag(priv, buf, bufsz);
1460 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1461 pos += scnprintf(buf + pos, bufsz - pos,
1462 "\t\t\tcurrent\t\t\taccumulative\n");
1463 pos += scnprintf(buf + pos, bufsz - pos,
1464 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1465 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1466 accum_bt->hi_priority_tx_req_cnt);
1467 pos += scnprintf(buf + pos, bufsz - pos,
1468 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1469 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1470 accum_bt->hi_priority_tx_denied_cnt);
1471 pos += scnprintf(buf + pos, bufsz - pos,
1472 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1473 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1474 accum_bt->lo_priority_tx_req_cnt);
1475 pos += scnprintf(buf + pos, bufsz - pos,
1476 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1477 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1478 accum_bt->lo_priority_tx_denied_cnt);
1479 pos += scnprintf(buf + pos, bufsz - pos,
1480 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1481 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1482 accum_bt->hi_priority_rx_req_cnt);
1483 pos += scnprintf(buf + pos, bufsz - pos,
1484 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1485 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1486 accum_bt->hi_priority_rx_denied_cnt);
1487 pos += scnprintf(buf + pos, bufsz - pos,
1488 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1489 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1490 accum_bt->lo_priority_rx_req_cnt);
1491 pos += scnprintf(buf + pos, bufsz - pos,
1492 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1493 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1494 accum_bt->lo_priority_rx_denied_cnt);
1495
1496 pos += scnprintf(buf + pos, bufsz - pos,
1497 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1498 le32_to_cpu(priv->statistics.num_bt_kills),
1499 priv->statistics.accum_num_bt_kills);
1500
1501 spin_unlock_bh(&priv->statistics.lock);
1502
1503 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1504 kfree(buf);
1505 return ret;
1506 }
1507
iwl_dbgfs_reply_tx_error_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1508 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1509 char __user *user_buf,
1510 size_t count, loff_t *ppos)
1511 {
1512 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1513 int pos = 0;
1514 char *buf;
1515 int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1516 (sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1517 ssize_t ret;
1518
1519 if (!iwl_is_alive(priv))
1520 return -EAGAIN;
1521
1522 buf = kzalloc(bufsz, GFP_KERNEL);
1523 if (!buf)
1524 return -ENOMEM;
1525
1526 pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1527 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1528 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1529 priv->reply_tx_stats.pp_delay);
1530 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1531 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1532 priv->reply_tx_stats.pp_few_bytes);
1533 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1534 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1535 priv->reply_tx_stats.pp_bt_prio);
1536 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1537 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1538 priv->reply_tx_stats.pp_quiet_period);
1539 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1540 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1541 priv->reply_tx_stats.pp_calc_ttak);
1542 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1543 iwl_get_tx_fail_reason(
1544 TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1545 priv->reply_tx_stats.int_crossed_retry);
1546 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1547 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1548 priv->reply_tx_stats.short_limit);
1549 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1550 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1551 priv->reply_tx_stats.long_limit);
1552 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1553 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1554 priv->reply_tx_stats.fifo_underrun);
1555 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1556 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1557 priv->reply_tx_stats.drain_flow);
1558 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1559 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1560 priv->reply_tx_stats.rfkill_flush);
1561 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1562 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1563 priv->reply_tx_stats.life_expire);
1564 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1565 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1566 priv->reply_tx_stats.dest_ps);
1567 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1568 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1569 priv->reply_tx_stats.host_abort);
1570 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1571 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1572 priv->reply_tx_stats.pp_delay);
1573 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1574 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1575 priv->reply_tx_stats.sta_invalid);
1576 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1577 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1578 priv->reply_tx_stats.frag_drop);
1579 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1580 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1581 priv->reply_tx_stats.tid_disable);
1582 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1583 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1584 priv->reply_tx_stats.fifo_flush);
1585 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1586 iwl_get_tx_fail_reason(
1587 TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1588 priv->reply_tx_stats.insuff_cf_poll);
1589 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1590 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1591 priv->reply_tx_stats.fail_hw_drop);
1592 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1593 iwl_get_tx_fail_reason(
1594 TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1595 priv->reply_tx_stats.sta_color_mismatch);
1596 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1597 priv->reply_tx_stats.unknown);
1598
1599 pos += scnprintf(buf + pos, bufsz - pos,
1600 "\nStatistics_Agg_TX_Error:\n");
1601
1602 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1603 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1604 priv->reply_agg_tx_stats.underrun);
1605 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1606 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1607 priv->reply_agg_tx_stats.bt_prio);
1608 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1609 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1610 priv->reply_agg_tx_stats.few_bytes);
1611 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1612 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1613 priv->reply_agg_tx_stats.abort);
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_TTL_MSK),
1617 priv->reply_agg_tx_stats.last_sent_ttl);
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_TRY_CNT_MSK),
1621 priv->reply_agg_tx_stats.last_sent_try);
1622 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1623 iwl_get_agg_tx_fail_reason(
1624 AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1625 priv->reply_agg_tx_stats.last_sent_bt_kill);
1626 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1627 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1628 priv->reply_agg_tx_stats.scd_query);
1629 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1630 iwl_get_agg_tx_fail_reason(
1631 AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1632 priv->reply_agg_tx_stats.bad_crc32);
1633 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1634 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1635 priv->reply_agg_tx_stats.response);
1636 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1637 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1638 priv->reply_agg_tx_stats.dump_tx);
1639 pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1640 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1641 priv->reply_agg_tx_stats.delay_tx);
1642 pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1643 priv->reply_agg_tx_stats.unknown);
1644
1645 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1646 kfree(buf);
1647 return ret;
1648 }
1649
iwl_dbgfs_sensitivity_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1650 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1651 char __user *user_buf,
1652 size_t count, loff_t *ppos) {
1653
1654 struct iwl_priv *priv = file->private_data;
1655 int pos = 0;
1656 int cnt = 0;
1657 char *buf;
1658 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1659 ssize_t ret;
1660 struct iwl_sensitivity_data *data;
1661
1662 data = &priv->sensitivity_data;
1663 buf = kzalloc(bufsz, GFP_KERNEL);
1664 if (!buf)
1665 return -ENOMEM;
1666
1667 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1668 data->auto_corr_ofdm);
1669 pos += scnprintf(buf + pos, bufsz - pos,
1670 "auto_corr_ofdm_mrc:\t\t %u\n",
1671 data->auto_corr_ofdm_mrc);
1672 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1673 data->auto_corr_ofdm_x1);
1674 pos += scnprintf(buf + pos, bufsz - pos,
1675 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1676 data->auto_corr_ofdm_mrc_x1);
1677 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1678 data->auto_corr_cck);
1679 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1680 data->auto_corr_cck_mrc);
1681 pos += scnprintf(buf + pos, bufsz - pos,
1682 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1683 data->last_bad_plcp_cnt_ofdm);
1684 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1685 data->last_fa_cnt_ofdm);
1686 pos += scnprintf(buf + pos, bufsz - pos,
1687 "last_bad_plcp_cnt_cck:\t\t %u\n",
1688 data->last_bad_plcp_cnt_cck);
1689 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1690 data->last_fa_cnt_cck);
1691 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1692 data->nrg_curr_state);
1693 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1694 data->nrg_prev_state);
1695 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1696 for (cnt = 0; cnt < 10; cnt++) {
1697 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1698 data->nrg_value[cnt]);
1699 }
1700 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1701 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1702 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1703 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1704 data->nrg_silence_rssi[cnt]);
1705 }
1706 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1707 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1708 data->nrg_silence_ref);
1709 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1710 data->nrg_energy_idx);
1711 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1712 data->nrg_silence_idx);
1713 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1714 data->nrg_th_cck);
1715 pos += scnprintf(buf + pos, bufsz - pos,
1716 "nrg_auto_corr_silence_diff:\t %u\n",
1717 data->nrg_auto_corr_silence_diff);
1718 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1719 data->num_in_cck_no_fa);
1720 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1721 data->nrg_th_ofdm);
1722
1723 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1724 kfree(buf);
1725 return ret;
1726 }
1727
1728
iwl_dbgfs_chain_noise_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1729 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1730 char __user *user_buf,
1731 size_t count, loff_t *ppos) {
1732
1733 struct iwl_priv *priv = file->private_data;
1734 int pos = 0;
1735 int cnt = 0;
1736 char *buf;
1737 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1738 ssize_t ret;
1739 struct iwl_chain_noise_data *data;
1740
1741 data = &priv->chain_noise_data;
1742 buf = kzalloc(bufsz, GFP_KERNEL);
1743 if (!buf)
1744 return -ENOMEM;
1745
1746 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1747 data->active_chains);
1748 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1749 data->chain_noise_a);
1750 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1751 data->chain_noise_b);
1752 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1753 data->chain_noise_c);
1754 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1755 data->chain_signal_a);
1756 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1757 data->chain_signal_b);
1758 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1759 data->chain_signal_c);
1760 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1761 data->beacon_count);
1762
1763 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1764 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1765 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1766 data->disconn_array[cnt]);
1767 }
1768 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1769 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1770 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1771 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1772 data->delta_gain_code[cnt]);
1773 }
1774 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1775 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1776 data->radio_write);
1777 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1778 data->state);
1779
1780 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1781 kfree(buf);
1782 return ret;
1783 }
1784
iwl_dbgfs_power_save_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1785 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1786 char __user *user_buf,
1787 size_t count, loff_t *ppos)
1788 {
1789 struct iwl_priv *priv = file->private_data;
1790 char buf[60];
1791 int pos = 0;
1792 const size_t bufsz = sizeof(buf);
1793 u32 pwrsave_status;
1794
1795 pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1796 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1797
1798 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1799 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1800 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1801 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1802 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1803 "error");
1804
1805 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1806 }
1807
iwl_dbgfs_clear_ucode_statistics_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1808 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1809 const char __user *user_buf,
1810 size_t count, loff_t *ppos)
1811 {
1812 struct iwl_priv *priv = file->private_data;
1813 char buf[8];
1814 int buf_size;
1815 int clear;
1816
1817 memset(buf, 0, sizeof(buf));
1818 buf_size = min(count, sizeof(buf) - 1);
1819 if (copy_from_user(buf, user_buf, buf_size))
1820 return -EFAULT;
1821 if (sscanf(buf, "%d", &clear) != 1)
1822 return -EFAULT;
1823
1824 /* make request to uCode to retrieve statistics information */
1825 mutex_lock(&priv->mutex);
1826 iwl_send_statistics_request(priv, 0, true);
1827 mutex_unlock(&priv->mutex);
1828
1829 return count;
1830 }
1831
iwl_dbgfs_ucode_tracing_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1832 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1833 char __user *user_buf,
1834 size_t count, loff_t *ppos) {
1835
1836 struct iwl_priv *priv = file->private_data;
1837 int pos = 0;
1838 char buf[128];
1839 const size_t bufsz = sizeof(buf);
1840
1841 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1842 priv->event_log.ucode_trace ? "On" : "Off");
1843 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1844 priv->event_log.non_wraps_count);
1845 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1846 priv->event_log.wraps_once_count);
1847 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1848 priv->event_log.wraps_more_count);
1849
1850 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1851 }
1852
iwl_dbgfs_ucode_tracing_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1853 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1854 const char __user *user_buf,
1855 size_t count, loff_t *ppos)
1856 {
1857 struct iwl_priv *priv = file->private_data;
1858 char buf[8];
1859 int buf_size;
1860 int trace;
1861
1862 memset(buf, 0, sizeof(buf));
1863 buf_size = min(count, sizeof(buf) - 1);
1864 if (copy_from_user(buf, user_buf, buf_size))
1865 return -EFAULT;
1866 if (sscanf(buf, "%d", &trace) != 1)
1867 return -EFAULT;
1868
1869 if (trace) {
1870 priv->event_log.ucode_trace = true;
1871 if (iwl_is_alive(priv)) {
1872 /* start collecting data now */
1873 mod_timer(&priv->ucode_trace, jiffies);
1874 }
1875 } else {
1876 priv->event_log.ucode_trace = false;
1877 del_timer_sync(&priv->ucode_trace);
1878 }
1879
1880 return count;
1881 }
1882
iwl_dbgfs_rxon_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1883 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1884 char __user *user_buf,
1885 size_t count, loff_t *ppos) {
1886
1887 struct iwl_priv *priv = file->private_data;
1888 int len = 0;
1889 char buf[20];
1890
1891 len = sprintf(buf, "0x%04X\n",
1892 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1893 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1894 }
1895
iwl_dbgfs_rxon_filter_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1896 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1897 char __user *user_buf,
1898 size_t count, loff_t *ppos) {
1899
1900 struct iwl_priv *priv = file->private_data;
1901 int len = 0;
1902 char buf[20];
1903
1904 len = sprintf(buf, "0x%04X\n",
1905 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1906 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1907 }
1908
iwl_dbgfs_missed_beacon_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1909 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1910 char __user *user_buf,
1911 size_t count, loff_t *ppos) {
1912
1913 struct iwl_priv *priv = file->private_data;
1914 int pos = 0;
1915 char buf[12];
1916 const size_t bufsz = sizeof(buf);
1917
1918 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1919 priv->missed_beacon_threshold);
1920
1921 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1922 }
1923
iwl_dbgfs_missed_beacon_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1924 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1925 const char __user *user_buf,
1926 size_t count, loff_t *ppos)
1927 {
1928 struct iwl_priv *priv = file->private_data;
1929 char buf[8];
1930 int buf_size;
1931 int missed;
1932
1933 memset(buf, 0, sizeof(buf));
1934 buf_size = min(count, sizeof(buf) - 1);
1935 if (copy_from_user(buf, user_buf, buf_size))
1936 return -EFAULT;
1937 if (sscanf(buf, "%d", &missed) != 1)
1938 return -EINVAL;
1939
1940 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1941 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1942 priv->missed_beacon_threshold =
1943 IWL_MISSED_BEACON_THRESHOLD_DEF;
1944 else
1945 priv->missed_beacon_threshold = missed;
1946
1947 return count;
1948 }
1949
iwl_dbgfs_plcp_delta_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1950 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1951 char __user *user_buf,
1952 size_t count, loff_t *ppos) {
1953
1954 struct iwl_priv *priv = file->private_data;
1955 int pos = 0;
1956 char buf[12];
1957 const size_t bufsz = sizeof(buf);
1958
1959 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1960 priv->plcp_delta_threshold);
1961
1962 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1963 }
1964
iwl_dbgfs_plcp_delta_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1965 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1966 const char __user *user_buf,
1967 size_t count, loff_t *ppos) {
1968
1969 struct iwl_priv *priv = file->private_data;
1970 char buf[8];
1971 int buf_size;
1972 int plcp;
1973
1974 memset(buf, 0, sizeof(buf));
1975 buf_size = min(count, sizeof(buf) - 1);
1976 if (copy_from_user(buf, user_buf, buf_size))
1977 return -EFAULT;
1978 if (sscanf(buf, "%d", &plcp) != 1)
1979 return -EINVAL;
1980 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1981 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1982 priv->plcp_delta_threshold =
1983 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1984 else
1985 priv->plcp_delta_threshold = plcp;
1986 return count;
1987 }
1988
iwl_dbgfs_rf_reset_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1989 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
1990 char __user *user_buf,
1991 size_t count, loff_t *ppos)
1992 {
1993 struct iwl_priv *priv = file->private_data;
1994 int pos = 0;
1995 char buf[300];
1996 const size_t bufsz = sizeof(buf);
1997 struct iwl_rf_reset *rf_reset = &priv->rf_reset;
1998
1999 pos += scnprintf(buf + pos, bufsz - pos,
2000 "RF reset statistics\n");
2001 pos += scnprintf(buf + pos, bufsz - pos,
2002 "\tnumber of reset request: %d\n",
2003 rf_reset->reset_request_count);
2004 pos += scnprintf(buf + pos, bufsz - pos,
2005 "\tnumber of reset request success: %d\n",
2006 rf_reset->reset_success_count);
2007 pos += scnprintf(buf + pos, bufsz - pos,
2008 "\tnumber of reset request reject: %d\n",
2009 rf_reset->reset_reject_count);
2010
2011 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2012 }
2013
iwl_dbgfs_rf_reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2014 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2015 const char __user *user_buf,
2016 size_t count, loff_t *ppos) {
2017
2018 struct iwl_priv *priv = file->private_data;
2019 int ret;
2020
2021 ret = iwl_force_rf_reset(priv, true);
2022 return ret ? ret : count;
2023 }
2024
iwl_dbgfs_txfifo_flush_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2025 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2026 const char __user *user_buf,
2027 size_t count, loff_t *ppos) {
2028
2029 struct iwl_priv *priv = file->private_data;
2030 char buf[8];
2031 int buf_size;
2032 int flush;
2033
2034 memset(buf, 0, sizeof(buf));
2035 buf_size = min(count, sizeof(buf) - 1);
2036 if (copy_from_user(buf, user_buf, buf_size))
2037 return -EFAULT;
2038 if (sscanf(buf, "%d", &flush) != 1)
2039 return -EINVAL;
2040
2041 if (iwl_is_rfkill(priv))
2042 return -EFAULT;
2043
2044 iwlagn_dev_txfifo_flush(priv);
2045
2046 return count;
2047 }
2048
iwl_dbgfs_bt_traffic_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2049 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2050 char __user *user_buf,
2051 size_t count, loff_t *ppos) {
2052
2053 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2054 int pos = 0;
2055 char buf[200];
2056 const size_t bufsz = sizeof(buf);
2057
2058 if (!priv->bt_enable_flag) {
2059 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2060 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2061 }
2062 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2063 priv->bt_enable_flag);
2064 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2065 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2066 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2067 "last traffic notif: %d\n",
2068 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2069 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2070 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2071 priv->bt_ch_announce, priv->kill_ack_mask,
2072 priv->kill_cts_mask);
2073
2074 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2075 switch (priv->bt_traffic_load) {
2076 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2077 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2078 break;
2079 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2080 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2081 break;
2082 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2083 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2084 break;
2085 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2086 default:
2087 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2088 break;
2089 }
2090
2091 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2092 }
2093
iwl_dbgfs_protection_mode_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2094 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2095 char __user *user_buf,
2096 size_t count, loff_t *ppos)
2097 {
2098 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2099
2100 int pos = 0;
2101 char buf[40];
2102 const size_t bufsz = sizeof(buf);
2103
2104 if (priv->cfg->ht_params)
2105 pos += scnprintf(buf + pos, bufsz - pos,
2106 "use %s for aggregation\n",
2107 (priv->hw_params.use_rts_for_aggregation) ?
2108 "rts/cts" : "cts-to-self");
2109 else
2110 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2111
2112 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2113 }
2114
iwl_dbgfs_protection_mode_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2115 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2116 const char __user *user_buf,
2117 size_t count, loff_t *ppos) {
2118
2119 struct iwl_priv *priv = file->private_data;
2120 char buf[8];
2121 int buf_size;
2122 int rts;
2123
2124 if (!priv->cfg->ht_params)
2125 return -EINVAL;
2126
2127 memset(buf, 0, sizeof(buf));
2128 buf_size = min(count, sizeof(buf) - 1);
2129 if (copy_from_user(buf, user_buf, buf_size))
2130 return -EFAULT;
2131 if (sscanf(buf, "%d", &rts) != 1)
2132 return -EINVAL;
2133 if (rts)
2134 priv->hw_params.use_rts_for_aggregation = true;
2135 else
2136 priv->hw_params.use_rts_for_aggregation = false;
2137 return count;
2138 }
2139
iwl_cmd_echo_test(struct iwl_priv * priv)2140 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2141 {
2142 int ret;
2143 struct iwl_host_cmd cmd = {
2144 .id = REPLY_ECHO,
2145 .len = { 0 },
2146 };
2147
2148 ret = iwl_dvm_send_cmd(priv, &cmd);
2149 if (ret)
2150 IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2151 else
2152 IWL_DEBUG_INFO(priv, "echo testing pass\n");
2153 return ret;
2154 }
2155
iwl_dbgfs_echo_test_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2156 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2157 const char __user *user_buf,
2158 size_t count, loff_t *ppos)
2159 {
2160 struct iwl_priv *priv = file->private_data;
2161 char buf[8];
2162 int buf_size;
2163
2164 memset(buf, 0, sizeof(buf));
2165 buf_size = min(count, sizeof(buf) - 1);
2166 if (copy_from_user(buf, user_buf, buf_size))
2167 return -EFAULT;
2168
2169 iwl_cmd_echo_test(priv);
2170 return count;
2171 }
2172
2173 #ifdef CONFIG_IWLWIFI_DEBUG
iwl_dbgfs_log_event_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2174 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2175 char __user *user_buf,
2176 size_t count, loff_t *ppos)
2177 {
2178 struct iwl_priv *priv = file->private_data;
2179 char *buf = NULL;
2180 ssize_t ret;
2181
2182 ret = iwl_dump_nic_event_log(priv, true, &buf);
2183 if (ret > 0)
2184 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2185 kfree(buf);
2186 return ret;
2187 }
2188
iwl_dbgfs_log_event_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2189 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2190 const char __user *user_buf,
2191 size_t count, loff_t *ppos)
2192 {
2193 struct iwl_priv *priv = file->private_data;
2194 u32 event_log_flag;
2195 char buf[8];
2196 int buf_size;
2197
2198 /* check that the interface is up */
2199 if (!iwl_is_ready(priv))
2200 return -EAGAIN;
2201
2202 memset(buf, 0, sizeof(buf));
2203 buf_size = min(count, sizeof(buf) - 1);
2204 if (copy_from_user(buf, user_buf, buf_size))
2205 return -EFAULT;
2206 if (sscanf(buf, "%u", &event_log_flag) != 1)
2207 return -EFAULT;
2208 if (event_log_flag == 1)
2209 iwl_dump_nic_event_log(priv, true, NULL);
2210
2211 return count;
2212 }
2213 #endif
2214
iwl_dbgfs_calib_disabled_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2215 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2216 char __user *user_buf,
2217 size_t count, loff_t *ppos)
2218 {
2219 struct iwl_priv *priv = file->private_data;
2220 char buf[120];
2221 int pos = 0;
2222 const size_t bufsz = sizeof(buf);
2223
2224 pos += scnprintf(buf + pos, bufsz - pos,
2225 "Sensitivity calibrations %s\n",
2226 (priv->calib_disabled &
2227 IWL_SENSITIVITY_CALIB_DISABLED) ?
2228 "DISABLED" : "ENABLED");
2229 pos += scnprintf(buf + pos, bufsz - pos,
2230 "Chain noise calibrations %s\n",
2231 (priv->calib_disabled &
2232 IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2233 "DISABLED" : "ENABLED");
2234 pos += scnprintf(buf + pos, bufsz - pos,
2235 "Tx power calibrations %s\n",
2236 (priv->calib_disabled &
2237 IWL_TX_POWER_CALIB_DISABLED) ?
2238 "DISABLED" : "ENABLED");
2239
2240 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2241 }
2242
iwl_dbgfs_calib_disabled_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2243 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2244 const char __user *user_buf,
2245 size_t count, loff_t *ppos)
2246 {
2247 struct iwl_priv *priv = file->private_data;
2248 char buf[8];
2249 u32 calib_disabled;
2250 int buf_size;
2251
2252 memset(buf, 0, sizeof(buf));
2253 buf_size = min(count, sizeof(buf) - 1);
2254 if (copy_from_user(buf, user_buf, buf_size))
2255 return -EFAULT;
2256 if (sscanf(buf, "%x", &calib_disabled) != 1)
2257 return -EFAULT;
2258
2259 priv->calib_disabled = calib_disabled;
2260
2261 return count;
2262 }
2263
iwl_dbgfs_fw_restart_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2264 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2265 const char __user *user_buf,
2266 size_t count, loff_t *ppos)
2267 {
2268 struct iwl_priv *priv = file->private_data;
2269 bool fw_restart = iwlwifi_mod_params.fw_restart;
2270 int __maybe_unused ret;
2271
2272 iwlwifi_mod_params.fw_restart = true;
2273
2274 mutex_lock(&priv->mutex);
2275
2276 /* take the return value to make compiler happy - it will fail anyway */
2277 ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2278
2279 mutex_unlock(&priv->mutex);
2280
2281 iwlwifi_mod_params.fw_restart = fw_restart;
2282
2283 return count;
2284 }
2285
2286 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2287 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2288 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2289 DEBUGFS_READ_FILE_OPS(sensitivity);
2290 DEBUGFS_READ_FILE_OPS(chain_noise);
2291 DEBUGFS_READ_FILE_OPS(power_save_status);
2292 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2293 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2294 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2295 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2296 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2297 DEBUGFS_READ_FILE_OPS(rxon_flags);
2298 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2299 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2300 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2301 DEBUGFS_READ_FILE_OPS(bt_traffic);
2302 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2303 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2304 DEBUGFS_WRITE_FILE_OPS(echo_test);
2305 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2306 #ifdef CONFIG_IWLWIFI_DEBUG
2307 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2308 #endif
2309 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2310
2311 /*
2312 * Create the debugfs files and directories
2313 *
2314 */
iwl_dbgfs_register(struct iwl_priv * priv,struct dentry * dbgfs_dir)2315 void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2316 {
2317 struct dentry *dir_data, *dir_rf, *dir_debug;
2318
2319 priv->debugfs_dir = dbgfs_dir;
2320
2321 dir_data = debugfs_create_dir("data", dbgfs_dir);
2322 dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2323 dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2324
2325 DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
2326 DEBUGFS_ADD_FILE(sram, dir_data, 0600);
2327 DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400);
2328 DEBUGFS_ADD_FILE(stations, dir_data, 0400);
2329 DEBUGFS_ADD_FILE(channels, dir_data, 0400);
2330 DEBUGFS_ADD_FILE(status, dir_data, 0400);
2331 DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600);
2332 DEBUGFS_ADD_FILE(qos, dir_data, 0400);
2333 DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600);
2334 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400);
2335 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400);
2336 DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600);
2337 DEBUGFS_ADD_FILE(temperature, dir_data, 0400);
2338
2339 DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400);
2340 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200);
2341 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200);
2342 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600);
2343 DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600);
2344 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400);
2345 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400);
2346 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400);
2347 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200);
2348 DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600);
2349 DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400);
2350 DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400);
2351 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600);
2352 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400);
2353 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400);
2354 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200);
2355 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200);
2356 DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200);
2357 DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200);
2358 #ifdef CONFIG_IWLWIFI_DEBUG
2359 DEBUGFS_ADD_FILE(log_event, dir_debug, 0600);
2360 #endif
2361
2362 if (iwl_advanced_bt_coexist(priv))
2363 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400);
2364
2365 /* Calibrations disabled/enabled status*/
2366 DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600);
2367
2368 /*
2369 * Create a symlink with mac80211. This is not very robust, as it does
2370 * not remove the symlink created. The implicit assumption is that
2371 * when the opmode exits, mac80211 will also exit, and will remove
2372 * this symlink as part of its cleanup.
2373 */
2374 if (priv->mac80211_registered) {
2375 char buf[100];
2376 struct dentry *mac80211_dir, *dev_dir;
2377
2378 dev_dir = dbgfs_dir->d_parent;
2379 mac80211_dir = priv->hw->wiphy->debugfsdir;
2380
2381 snprintf(buf, 100, "../../%pd2", dev_dir);
2382
2383 debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
2384 }
2385 }
2386