1 /******************************************************************************
2 *
3 * GPL LICENSE SUMMARY
4 *
5 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
19 * USA
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28 #include <linux/ieee80211.h>
29 #include <linux/export.h>
30 #include <net/mac80211.h>
31
32 #include "common.h"
33
34 void
il_clear_traffic_stats(struct il_priv * il)35 il_clear_traffic_stats(struct il_priv *il)
36 {
37 memset(&il->tx_stats, 0, sizeof(struct traffic_stats));
38 memset(&il->rx_stats, 0, sizeof(struct traffic_stats));
39 }
40
41 /*
42 * il_update_stats function record all the MGMT, CTRL and DATA pkt for
43 * both TX and Rx . Use debugfs to display the rx/rx_stats
44 */
45 void
il_update_stats(struct il_priv * il,bool is_tx,__le16 fc,u16 len)46 il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len)
47 {
48 struct traffic_stats *stats;
49
50 if (is_tx)
51 stats = &il->tx_stats;
52 else
53 stats = &il->rx_stats;
54
55 if (ieee80211_is_mgmt(fc)) {
56 switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
57 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
58 stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
59 break;
60 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
61 stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
62 break;
63 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
64 stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
65 break;
66 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
67 stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
68 break;
69 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
70 stats->mgmt[MANAGEMENT_PROBE_REQ]++;
71 break;
72 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
73 stats->mgmt[MANAGEMENT_PROBE_RESP]++;
74 break;
75 case cpu_to_le16(IEEE80211_STYPE_BEACON):
76 stats->mgmt[MANAGEMENT_BEACON]++;
77 break;
78 case cpu_to_le16(IEEE80211_STYPE_ATIM):
79 stats->mgmt[MANAGEMENT_ATIM]++;
80 break;
81 case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
82 stats->mgmt[MANAGEMENT_DISASSOC]++;
83 break;
84 case cpu_to_le16(IEEE80211_STYPE_AUTH):
85 stats->mgmt[MANAGEMENT_AUTH]++;
86 break;
87 case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
88 stats->mgmt[MANAGEMENT_DEAUTH]++;
89 break;
90 case cpu_to_le16(IEEE80211_STYPE_ACTION):
91 stats->mgmt[MANAGEMENT_ACTION]++;
92 break;
93 }
94 } else if (ieee80211_is_ctl(fc)) {
95 switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
96 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
97 stats->ctrl[CONTROL_BACK_REQ]++;
98 break;
99 case cpu_to_le16(IEEE80211_STYPE_BACK):
100 stats->ctrl[CONTROL_BACK]++;
101 break;
102 case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
103 stats->ctrl[CONTROL_PSPOLL]++;
104 break;
105 case cpu_to_le16(IEEE80211_STYPE_RTS):
106 stats->ctrl[CONTROL_RTS]++;
107 break;
108 case cpu_to_le16(IEEE80211_STYPE_CTS):
109 stats->ctrl[CONTROL_CTS]++;
110 break;
111 case cpu_to_le16(IEEE80211_STYPE_ACK):
112 stats->ctrl[CONTROL_ACK]++;
113 break;
114 case cpu_to_le16(IEEE80211_STYPE_CFEND):
115 stats->ctrl[CONTROL_CFEND]++;
116 break;
117 case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
118 stats->ctrl[CONTROL_CFENDACK]++;
119 break;
120 }
121 } else {
122 /* data */
123 stats->data_cnt++;
124 stats->data_bytes += len;
125 }
126 }
127 EXPORT_SYMBOL(il_update_stats);
128
129 /* create and remove of files */
130 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
131 if (!debugfs_create_file(#name, mode, parent, il, \
132 &il_dbgfs_##name##_ops)) \
133 goto err; \
134 } while (0)
135
136 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
137 struct dentry *__tmp; \
138 __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
139 parent, ptr); \
140 if (IS_ERR(__tmp) || !__tmp) \
141 goto err; \
142 } while (0)
143
144 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
145 struct dentry *__tmp; \
146 __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
147 parent, ptr); \
148 if (IS_ERR(__tmp) || !__tmp) \
149 goto err; \
150 } while (0)
151
152 /* file operation */
153 #define DEBUGFS_READ_FUNC(name) \
154 static ssize_t il_dbgfs_##name##_read(struct file *file, \
155 char __user *user_buf, \
156 size_t count, loff_t *ppos);
157
158 #define DEBUGFS_WRITE_FUNC(name) \
159 static ssize_t il_dbgfs_##name##_write(struct file *file, \
160 const char __user *user_buf, \
161 size_t count, loff_t *ppos);
162
163
164 #define DEBUGFS_READ_FILE_OPS(name) \
165 DEBUGFS_READ_FUNC(name); \
166 static const struct file_operations il_dbgfs_##name##_ops = { \
167 .read = il_dbgfs_##name##_read, \
168 .open = simple_open, \
169 .llseek = generic_file_llseek, \
170 };
171
172 #define DEBUGFS_WRITE_FILE_OPS(name) \
173 DEBUGFS_WRITE_FUNC(name); \
174 static const struct file_operations il_dbgfs_##name##_ops = { \
175 .write = il_dbgfs_##name##_write, \
176 .open = simple_open, \
177 .llseek = generic_file_llseek, \
178 };
179
180 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
181 DEBUGFS_READ_FUNC(name); \
182 DEBUGFS_WRITE_FUNC(name); \
183 static const struct file_operations il_dbgfs_##name##_ops = { \
184 .write = il_dbgfs_##name##_write, \
185 .read = il_dbgfs_##name##_read, \
186 .open = simple_open, \
187 .llseek = generic_file_llseek, \
188 };
189
190 static const char *
il_get_mgmt_string(int cmd)191 il_get_mgmt_string(int cmd)
192 {
193 switch (cmd) {
194 IL_CMD(MANAGEMENT_ASSOC_REQ);
195 IL_CMD(MANAGEMENT_ASSOC_RESP);
196 IL_CMD(MANAGEMENT_REASSOC_REQ);
197 IL_CMD(MANAGEMENT_REASSOC_RESP);
198 IL_CMD(MANAGEMENT_PROBE_REQ);
199 IL_CMD(MANAGEMENT_PROBE_RESP);
200 IL_CMD(MANAGEMENT_BEACON);
201 IL_CMD(MANAGEMENT_ATIM);
202 IL_CMD(MANAGEMENT_DISASSOC);
203 IL_CMD(MANAGEMENT_AUTH);
204 IL_CMD(MANAGEMENT_DEAUTH);
205 IL_CMD(MANAGEMENT_ACTION);
206 default:
207 return "UNKNOWN";
208
209 }
210 }
211
212 static const char *
il_get_ctrl_string(int cmd)213 il_get_ctrl_string(int cmd)
214 {
215 switch (cmd) {
216 IL_CMD(CONTROL_BACK_REQ);
217 IL_CMD(CONTROL_BACK);
218 IL_CMD(CONTROL_PSPOLL);
219 IL_CMD(CONTROL_RTS);
220 IL_CMD(CONTROL_CTS);
221 IL_CMD(CONTROL_ACK);
222 IL_CMD(CONTROL_CFEND);
223 IL_CMD(CONTROL_CFENDACK);
224 default:
225 return "UNKNOWN";
226
227 }
228 }
229
230 static ssize_t
il_dbgfs_tx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)231 il_dbgfs_tx_stats_read(struct file *file, char __user *user_buf, size_t count,
232 loff_t *ppos)
233 {
234
235 struct il_priv *il = file->private_data;
236 char *buf;
237 int pos = 0;
238
239 int cnt;
240 ssize_t ret;
241 const size_t bufsz =
242 100 + sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
243 buf = kzalloc(bufsz, GFP_KERNEL);
244 if (!buf)
245 return -ENOMEM;
246 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
247 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
248 pos +=
249 scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
250 il_get_mgmt_string(cnt), il->tx_stats.mgmt[cnt]);
251 }
252 pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
253 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
254 pos +=
255 scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
256 il_get_ctrl_string(cnt), il->tx_stats.ctrl[cnt]);
257 }
258 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
259 pos +=
260 scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
261 il->tx_stats.data_cnt);
262 pos +=
263 scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
264 il->tx_stats.data_bytes);
265 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
266 kfree(buf);
267 return ret;
268 }
269
270 static ssize_t
il_dbgfs_clear_traffic_stats_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)271 il_dbgfs_clear_traffic_stats_write(struct file *file,
272 const char __user *user_buf, size_t count,
273 loff_t *ppos)
274 {
275 struct il_priv *il = file->private_data;
276 u32 clear_flag;
277 char buf[8];
278 int buf_size;
279
280 memset(buf, 0, sizeof(buf));
281 buf_size = min(count, sizeof(buf) - 1);
282 if (copy_from_user(buf, user_buf, buf_size))
283 return -EFAULT;
284 if (sscanf(buf, "%x", &clear_flag) != 1)
285 return -EFAULT;
286 il_clear_traffic_stats(il);
287
288 return count;
289 }
290
291 static ssize_t
il_dbgfs_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)292 il_dbgfs_rx_stats_read(struct file *file, char __user *user_buf, size_t count,
293 loff_t *ppos)
294 {
295
296 struct il_priv *il = file->private_data;
297 char *buf;
298 int pos = 0;
299 int cnt;
300 ssize_t ret;
301 const size_t bufsz =
302 100 + sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
303 buf = kzalloc(bufsz, GFP_KERNEL);
304 if (!buf)
305 return -ENOMEM;
306
307 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
308 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
309 pos +=
310 scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
311 il_get_mgmt_string(cnt), il->rx_stats.mgmt[cnt]);
312 }
313 pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
314 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
315 pos +=
316 scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
317 il_get_ctrl_string(cnt), il->rx_stats.ctrl[cnt]);
318 }
319 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
320 pos +=
321 scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
322 il->rx_stats.data_cnt);
323 pos +=
324 scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
325 il->rx_stats.data_bytes);
326
327 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
328 kfree(buf);
329 return ret;
330 }
331
332 #define BYTE1_MASK 0x000000ff;
333 #define BYTE2_MASK 0x0000ffff;
334 #define BYTE3_MASK 0x00ffffff;
335 static ssize_t
il_dbgfs_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)336 il_dbgfs_sram_read(struct file *file, char __user *user_buf, size_t count,
337 loff_t *ppos)
338 {
339 u32 val;
340 char *buf;
341 ssize_t ret;
342 int i;
343 int pos = 0;
344 struct il_priv *il = file->private_data;
345 size_t bufsz;
346
347 /* default is to dump the entire data segment */
348 if (!il->dbgfs_sram_offset && !il->dbgfs_sram_len) {
349 il->dbgfs_sram_offset = 0x800000;
350 if (il->ucode_type == UCODE_INIT)
351 il->dbgfs_sram_len = il->ucode_init_data.len;
352 else
353 il->dbgfs_sram_len = il->ucode_data.len;
354 }
355 bufsz = 30 + il->dbgfs_sram_len * sizeof(char) * 10;
356 buf = kmalloc(bufsz, GFP_KERNEL);
357 if (!buf)
358 return -ENOMEM;
359 pos +=
360 scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
361 il->dbgfs_sram_len);
362 pos +=
363 scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
364 il->dbgfs_sram_offset);
365 for (i = il->dbgfs_sram_len; i > 0; i -= 4) {
366 val =
367 il_read_targ_mem(il,
368 il->dbgfs_sram_offset +
369 il->dbgfs_sram_len - i);
370 if (i < 4) {
371 switch (i) {
372 case 1:
373 val &= BYTE1_MASK;
374 break;
375 case 2:
376 val &= BYTE2_MASK;
377 break;
378 case 3:
379 val &= BYTE3_MASK;
380 break;
381 }
382 }
383 if (!(i % 16))
384 pos += scnprintf(buf + pos, bufsz - pos, "\n");
385 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
386 }
387 pos += scnprintf(buf + pos, bufsz - pos, "\n");
388
389 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
390 kfree(buf);
391 return ret;
392 }
393
394 static ssize_t
il_dbgfs_sram_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)395 il_dbgfs_sram_write(struct file *file, const char __user *user_buf,
396 size_t count, loff_t *ppos)
397 {
398 struct il_priv *il = file->private_data;
399 char buf[64];
400 int buf_size;
401 u32 offset, len;
402
403 memset(buf, 0, sizeof(buf));
404 buf_size = min(count, sizeof(buf) - 1);
405 if (copy_from_user(buf, user_buf, buf_size))
406 return -EFAULT;
407
408 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
409 il->dbgfs_sram_offset = offset;
410 il->dbgfs_sram_len = len;
411 } else {
412 il->dbgfs_sram_offset = 0;
413 il->dbgfs_sram_len = 0;
414 }
415
416 return count;
417 }
418
419 static ssize_t
il_dbgfs_stations_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)420 il_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count,
421 loff_t *ppos)
422 {
423 struct il_priv *il = file->private_data;
424 struct il_station_entry *station;
425 int max_sta = il->hw_params.max_stations;
426 char *buf;
427 int i, j, pos = 0;
428 ssize_t ret;
429 /* Add 30 for initial string */
430 const size_t bufsz = 30 + sizeof(char) * 500 * (il->num_stations);
431
432 buf = kmalloc(bufsz, GFP_KERNEL);
433 if (!buf)
434 return -ENOMEM;
435
436 pos +=
437 scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
438 il->num_stations);
439
440 for (i = 0; i < max_sta; i++) {
441 station = &il->stations[i];
442 if (!station->used)
443 continue;
444 pos +=
445 scnprintf(buf + pos, bufsz - pos,
446 "station %d - addr: %pM, flags: %#x\n", i,
447 station->sta.sta.addr,
448 station->sta.station_flags_msk);
449 pos +=
450 scnprintf(buf + pos, bufsz - pos,
451 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
452 pos +=
453 scnprintf(buf + pos, bufsz - pos,
454 "start_idx\tbitmap\t\t\trate_n_flags\n");
455
456 for (j = 0; j < MAX_TID_COUNT; j++) {
457 pos +=
458 scnprintf(buf + pos, bufsz - pos,
459 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
460 j, station->tid[j].seq_number,
461 station->tid[j].agg.txq_id,
462 station->tid[j].agg.frame_count,
463 station->tid[j].tfds_in_queue,
464 station->tid[j].agg.start_idx,
465 station->tid[j].agg.bitmap,
466 station->tid[j].agg.rate_n_flags);
467
468 if (station->tid[j].agg.wait_for_ba)
469 pos +=
470 scnprintf(buf + pos, bufsz - pos,
471 " - waitforba");
472 pos += scnprintf(buf + pos, bufsz - pos, "\n");
473 }
474
475 pos += scnprintf(buf + pos, bufsz - pos, "\n");
476 }
477
478 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
479 kfree(buf);
480 return ret;
481 }
482
483 static ssize_t
il_dbgfs_nvm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)484 il_dbgfs_nvm_read(struct file *file, char __user *user_buf, size_t count,
485 loff_t *ppos)
486 {
487 ssize_t ret;
488 struct il_priv *il = file->private_data;
489 int pos = 0, ofs = 0, buf_size = 0;
490 const u8 *ptr;
491 char *buf;
492 u16 eeprom_ver;
493 size_t eeprom_len = il->cfg->eeprom_size;
494 buf_size = 4 * eeprom_len + 256;
495
496 if (eeprom_len % 16) {
497 IL_ERR("NVM size is not multiple of 16.\n");
498 return -ENODATA;
499 }
500
501 ptr = il->eeprom;
502 if (!ptr) {
503 IL_ERR("Invalid EEPROM memory\n");
504 return -ENOMEM;
505 }
506
507 /* 4 characters for byte 0xYY */
508 buf = kzalloc(buf_size, GFP_KERNEL);
509 if (!buf) {
510 IL_ERR("Can not allocate Buffer\n");
511 return -ENOMEM;
512 }
513 eeprom_ver = il_eeprom_query16(il, EEPROM_VERSION);
514 pos +=
515 scnprintf(buf + pos, buf_size - pos, "EEPROM " "version: 0x%x\n",
516 eeprom_ver);
517 for (ofs = 0; ofs < eeprom_len; ofs += 16) {
518 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
519 hex_dump_to_buffer(ptr + ofs, 16, 16, 2, buf + pos,
520 buf_size - pos, 0);
521 pos += strlen(buf + pos);
522 if (buf_size - pos > 0)
523 buf[pos++] = '\n';
524 }
525
526 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
527 kfree(buf);
528 return ret;
529 }
530
531 static ssize_t
il_dbgfs_channels_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)532 il_dbgfs_channels_read(struct file *file, char __user *user_buf, size_t count,
533 loff_t *ppos)
534 {
535 struct il_priv *il = file->private_data;
536 struct ieee80211_channel *channels = NULL;
537 const struct ieee80211_supported_band *supp_band = NULL;
538 int pos = 0, i, bufsz = PAGE_SIZE;
539 char *buf;
540 ssize_t ret;
541
542 if (!test_bit(S_GEO_CONFIGURED, &il->status))
543 return -EAGAIN;
544
545 buf = kzalloc(bufsz, GFP_KERNEL);
546 if (!buf) {
547 IL_ERR("Can not allocate Buffer\n");
548 return -ENOMEM;
549 }
550
551 supp_band = il_get_hw_mode(il, IEEE80211_BAND_2GHZ);
552 if (supp_band) {
553 channels = supp_band->channels;
554
555 pos +=
556 scnprintf(buf + pos, bufsz - pos,
557 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
558 supp_band->n_channels);
559
560 for (i = 0; i < supp_band->n_channels; i++)
561 pos +=
562 scnprintf(buf + pos, bufsz - pos,
563 "%d: %ddBm: BSS%s%s, %s.\n",
564 channels[i].hw_value,
565 channels[i].max_power,
566 channels[i].
567 flags & IEEE80211_CHAN_RADAR ?
568 " (IEEE 802.11h required)" : "",
569 ((channels[i].
570 flags & IEEE80211_CHAN_NO_IBSS) ||
571 (channels[i].
572 flags & IEEE80211_CHAN_RADAR)) ? "" :
573 ", IBSS",
574 channels[i].
575 flags & IEEE80211_CHAN_PASSIVE_SCAN ?
576 "passive only" : "active/passive");
577 }
578 supp_band = il_get_hw_mode(il, IEEE80211_BAND_5GHZ);
579 if (supp_band) {
580 channels = supp_band->channels;
581
582 pos +=
583 scnprintf(buf + pos, bufsz - pos,
584 "Displaying %d channels in 5.2GHz band (802.11a)\n",
585 supp_band->n_channels);
586
587 for (i = 0; i < supp_band->n_channels; i++)
588 pos +=
589 scnprintf(buf + pos, bufsz - pos,
590 "%d: %ddBm: BSS%s%s, %s.\n",
591 channels[i].hw_value,
592 channels[i].max_power,
593 channels[i].
594 flags & IEEE80211_CHAN_RADAR ?
595 " (IEEE 802.11h required)" : "",
596 ((channels[i].
597 flags & IEEE80211_CHAN_NO_IBSS) ||
598 (channels[i].
599 flags & IEEE80211_CHAN_RADAR)) ? "" :
600 ", IBSS",
601 channels[i].
602 flags & IEEE80211_CHAN_PASSIVE_SCAN ?
603 "passive only" : "active/passive");
604 }
605 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
606 kfree(buf);
607 return ret;
608 }
609
610 static ssize_t
il_dbgfs_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)611 il_dbgfs_status_read(struct file *file, char __user *user_buf, size_t count,
612 loff_t *ppos)
613 {
614
615 struct il_priv *il = file->private_data;
616 char buf[512];
617 int pos = 0;
618 const size_t bufsz = sizeof(buf);
619
620 pos +=
621 scnprintf(buf + pos, bufsz - pos, "S_HCMD_ACTIVE:\t %d\n",
622 test_bit(S_HCMD_ACTIVE, &il->status));
623 pos +=
624 scnprintf(buf + pos, bufsz - pos, "S_INT_ENABLED:\t %d\n",
625 test_bit(S_INT_ENABLED, &il->status));
626 pos +=
627 scnprintf(buf + pos, bufsz - pos, "S_RFKILL:\t %d\n",
628 test_bit(S_RFKILL, &il->status));
629 pos +=
630 scnprintf(buf + pos, bufsz - pos, "S_CT_KILL:\t\t %d\n",
631 test_bit(S_CT_KILL, &il->status));
632 pos +=
633 scnprintf(buf + pos, bufsz - pos, "S_INIT:\t\t %d\n",
634 test_bit(S_INIT, &il->status));
635 pos +=
636 scnprintf(buf + pos, bufsz - pos, "S_ALIVE:\t\t %d\n",
637 test_bit(S_ALIVE, &il->status));
638 pos +=
639 scnprintf(buf + pos, bufsz - pos, "S_READY:\t\t %d\n",
640 test_bit(S_READY, &il->status));
641 pos +=
642 scnprintf(buf + pos, bufsz - pos, "S_TEMPERATURE:\t %d\n",
643 test_bit(S_TEMPERATURE, &il->status));
644 pos +=
645 scnprintf(buf + pos, bufsz - pos, "S_GEO_CONFIGURED:\t %d\n",
646 test_bit(S_GEO_CONFIGURED, &il->status));
647 pos +=
648 scnprintf(buf + pos, bufsz - pos, "S_EXIT_PENDING:\t %d\n",
649 test_bit(S_EXIT_PENDING, &il->status));
650 pos +=
651 scnprintf(buf + pos, bufsz - pos, "S_STATS:\t %d\n",
652 test_bit(S_STATS, &il->status));
653 pos +=
654 scnprintf(buf + pos, bufsz - pos, "S_SCANNING:\t %d\n",
655 test_bit(S_SCANNING, &il->status));
656 pos +=
657 scnprintf(buf + pos, bufsz - pos, "S_SCAN_ABORTING:\t %d\n",
658 test_bit(S_SCAN_ABORTING, &il->status));
659 pos +=
660 scnprintf(buf + pos, bufsz - pos, "S_SCAN_HW:\t\t %d\n",
661 test_bit(S_SCAN_HW, &il->status));
662 pos +=
663 scnprintf(buf + pos, bufsz - pos, "S_POWER_PMI:\t %d\n",
664 test_bit(S_POWER_PMI, &il->status));
665 pos +=
666 scnprintf(buf + pos, bufsz - pos, "S_FW_ERROR:\t %d\n",
667 test_bit(S_FW_ERROR, &il->status));
668 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
669 }
670
671 static ssize_t
il_dbgfs_interrupt_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)672 il_dbgfs_interrupt_read(struct file *file, char __user *user_buf, size_t count,
673 loff_t *ppos)
674 {
675
676 struct il_priv *il = file->private_data;
677 int pos = 0;
678 int cnt = 0;
679 char *buf;
680 int bufsz = 24 * 64; /* 24 items * 64 char per item */
681 ssize_t ret;
682
683 buf = kzalloc(bufsz, GFP_KERNEL);
684 if (!buf) {
685 IL_ERR("Can not allocate Buffer\n");
686 return -ENOMEM;
687 }
688
689 pos +=
690 scnprintf(buf + pos, bufsz - pos, "Interrupt Statistics Report:\n");
691
692 pos +=
693 scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
694 il->isr_stats.hw);
695 pos +=
696 scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
697 il->isr_stats.sw);
698 if (il->isr_stats.sw || il->isr_stats.hw) {
699 pos +=
700 scnprintf(buf + pos, bufsz - pos,
701 "\tLast Restarting Code: 0x%X\n",
702 il->isr_stats.err_code);
703 }
704 #ifdef CONFIG_IWLEGACY_DEBUG
705 pos +=
706 scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
707 il->isr_stats.sch);
708 pos +=
709 scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
710 il->isr_stats.alive);
711 #endif
712 pos +=
713 scnprintf(buf + pos, bufsz - pos,
714 "HW RF KILL switch toggled:\t %u\n",
715 il->isr_stats.rfkill);
716
717 pos +=
718 scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
719 il->isr_stats.ctkill);
720
721 pos +=
722 scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
723 il->isr_stats.wakeup);
724
725 pos +=
726 scnprintf(buf + pos, bufsz - pos, "Rx command responses:\t\t %u\n",
727 il->isr_stats.rx);
728 for (cnt = 0; cnt < IL_CN_MAX; cnt++) {
729 if (il->isr_stats.handlers[cnt] > 0)
730 pos +=
731 scnprintf(buf + pos, bufsz - pos,
732 "\tRx handler[%36s]:\t\t %u\n",
733 il_get_cmd_string(cnt),
734 il->isr_stats.handlers[cnt]);
735 }
736
737 pos +=
738 scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
739 il->isr_stats.tx);
740
741 pos +=
742 scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
743 il->isr_stats.unhandled);
744
745 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
746 kfree(buf);
747 return ret;
748 }
749
750 static ssize_t
il_dbgfs_interrupt_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)751 il_dbgfs_interrupt_write(struct file *file, const char __user *user_buf,
752 size_t count, loff_t *ppos)
753 {
754 struct il_priv *il = file->private_data;
755 char buf[8];
756 int buf_size;
757 u32 reset_flag;
758
759 memset(buf, 0, sizeof(buf));
760 buf_size = min(count, sizeof(buf) - 1);
761 if (copy_from_user(buf, user_buf, buf_size))
762 return -EFAULT;
763 if (sscanf(buf, "%x", &reset_flag) != 1)
764 return -EFAULT;
765 if (reset_flag == 0)
766 il_clear_isr_stats(il);
767
768 return count;
769 }
770
771 static ssize_t
il_dbgfs_qos_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)772 il_dbgfs_qos_read(struct file *file, char __user *user_buf, size_t count,
773 loff_t *ppos)
774 {
775 struct il_priv *il = file->private_data;
776 int pos = 0, i;
777 char buf[256];
778 const size_t bufsz = sizeof(buf);
779
780 for (i = 0; i < AC_NUM; i++) {
781 pos +=
782 scnprintf(buf + pos, bufsz - pos,
783 "\tcw_min\tcw_max\taifsn\ttxop\n");
784 pos +=
785 scnprintf(buf + pos, bufsz - pos,
786 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
787 il->qos_data.def_qos_parm.ac[i].cw_min,
788 il->qos_data.def_qos_parm.ac[i].cw_max,
789 il->qos_data.def_qos_parm.ac[i].aifsn,
790 il->qos_data.def_qos_parm.ac[i].edca_txop);
791 }
792
793 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
794 }
795
796 static ssize_t
il_dbgfs_disable_ht40_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)797 il_dbgfs_disable_ht40_write(struct file *file, const char __user *user_buf,
798 size_t count, loff_t *ppos)
799 {
800 struct il_priv *il = file->private_data;
801 char buf[8];
802 int buf_size;
803 int ht40;
804
805 memset(buf, 0, sizeof(buf));
806 buf_size = min(count, sizeof(buf) - 1);
807 if (copy_from_user(buf, user_buf, buf_size))
808 return -EFAULT;
809 if (sscanf(buf, "%d", &ht40) != 1)
810 return -EFAULT;
811 if (!il_is_any_associated(il))
812 il->disable_ht40 = ht40 ? true : false;
813 else {
814 IL_ERR("Sta associated with AP - "
815 "Change to 40MHz channel support is not allowed\n");
816 return -EINVAL;
817 }
818
819 return count;
820 }
821
822 static ssize_t
il_dbgfs_disable_ht40_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)823 il_dbgfs_disable_ht40_read(struct file *file, char __user *user_buf,
824 size_t count, loff_t *ppos)
825 {
826 struct il_priv *il = file->private_data;
827 char buf[100];
828 int pos = 0;
829 const size_t bufsz = sizeof(buf);
830
831 pos +=
832 scnprintf(buf + pos, bufsz - pos, "11n 40MHz Mode: %s\n",
833 il->disable_ht40 ? "Disabled" : "Enabled");
834 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
835 }
836
837 DEBUGFS_READ_WRITE_FILE_OPS(sram);
838 DEBUGFS_READ_FILE_OPS(nvm);
839 DEBUGFS_READ_FILE_OPS(stations);
840 DEBUGFS_READ_FILE_OPS(channels);
841 DEBUGFS_READ_FILE_OPS(status);
842 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
843 DEBUGFS_READ_FILE_OPS(qos);
844 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
845
846 static ssize_t
il_dbgfs_tx_queue_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)847 il_dbgfs_tx_queue_read(struct file *file, char __user *user_buf, size_t count,
848 loff_t *ppos)
849 {
850
851 struct il_priv *il = file->private_data;
852 struct il_tx_queue *txq;
853 struct il_queue *q;
854 char *buf;
855 int pos = 0;
856 int cnt;
857 int ret;
858 const size_t bufsz =
859 sizeof(char) * 64 * il->cfg->num_of_queues;
860
861 if (!il->txq) {
862 IL_ERR("txq not ready\n");
863 return -EAGAIN;
864 }
865 buf = kzalloc(bufsz, GFP_KERNEL);
866 if (!buf)
867 return -ENOMEM;
868
869 for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
870 txq = &il->txq[cnt];
871 q = &txq->q;
872 pos +=
873 scnprintf(buf + pos, bufsz - pos,
874 "hwq %.2d: read=%u write=%u stop=%d"
875 " swq_id=%#.2x (ac %d/hwq %d)\n", cnt,
876 q->read_ptr, q->write_ptr,
877 !!test_bit(cnt, il->queue_stopped),
878 txq->swq_id, txq->swq_id & 3,
879 (txq->swq_id >> 2) & 0x1f);
880 if (cnt >= 4)
881 continue;
882 /* for the ACs, display the stop count too */
883 pos +=
884 scnprintf(buf + pos, bufsz - pos,
885 " stop-count: %d\n",
886 atomic_read(&il->queue_stop_count[cnt]));
887 }
888 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
889 kfree(buf);
890 return ret;
891 }
892
893 static ssize_t
il_dbgfs_rx_queue_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)894 il_dbgfs_rx_queue_read(struct file *file, char __user *user_buf, size_t count,
895 loff_t *ppos)
896 {
897
898 struct il_priv *il = file->private_data;
899 struct il_rx_queue *rxq = &il->rxq;
900 char buf[256];
901 int pos = 0;
902 const size_t bufsz = sizeof(buf);
903
904 pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n", rxq->read);
905 pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n", rxq->write);
906 pos +=
907 scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
908 rxq->free_count);
909 if (rxq->rb_stts) {
910 pos +=
911 scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
912 le16_to_cpu(rxq->rb_stts->
913 closed_rb_num) & 0x0FFF);
914 } else {
915 pos +=
916 scnprintf(buf + pos, bufsz - pos,
917 "closed_rb_num: Not Allocated\n");
918 }
919 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
920 }
921
922 static ssize_t
il_dbgfs_ucode_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)923 il_dbgfs_ucode_rx_stats_read(struct file *file, char __user *user_buf,
924 size_t count, loff_t *ppos)
925 {
926 struct il_priv *il = file->private_data;
927
928 return il->debugfs_ops->rx_stats_read(file, user_buf, count, ppos);
929 }
930
931 static ssize_t
il_dbgfs_ucode_tx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)932 il_dbgfs_ucode_tx_stats_read(struct file *file, char __user *user_buf,
933 size_t count, loff_t *ppos)
934 {
935 struct il_priv *il = file->private_data;
936
937 return il->debugfs_ops->tx_stats_read(file, user_buf, count, ppos);
938 }
939
940 static ssize_t
il_dbgfs_ucode_general_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)941 il_dbgfs_ucode_general_stats_read(struct file *file, char __user *user_buf,
942 size_t count, loff_t *ppos)
943 {
944 struct il_priv *il = file->private_data;
945
946 return il->debugfs_ops->general_stats_read(file, user_buf, count, ppos);
947 }
948
949 static ssize_t
il_dbgfs_sensitivity_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)950 il_dbgfs_sensitivity_read(struct file *file, char __user *user_buf,
951 size_t count, loff_t *ppos)
952 {
953
954 struct il_priv *il = file->private_data;
955 int pos = 0;
956 int cnt = 0;
957 char *buf;
958 int bufsz = sizeof(struct il_sensitivity_data) * 4 + 100;
959 ssize_t ret;
960 struct il_sensitivity_data *data;
961
962 data = &il->sensitivity_data;
963 buf = kzalloc(bufsz, GFP_KERNEL);
964 if (!buf) {
965 IL_ERR("Can not allocate Buffer\n");
966 return -ENOMEM;
967 }
968
969 pos +=
970 scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
971 data->auto_corr_ofdm);
972 pos +=
973 scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc:\t\t %u\n",
974 data->auto_corr_ofdm_mrc);
975 pos +=
976 scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
977 data->auto_corr_ofdm_x1);
978 pos +=
979 scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc_x1:\t\t %u\n",
980 data->auto_corr_ofdm_mrc_x1);
981 pos +=
982 scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
983 data->auto_corr_cck);
984 pos +=
985 scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
986 data->auto_corr_cck_mrc);
987 pos +=
988 scnprintf(buf + pos, bufsz - pos,
989 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
990 data->last_bad_plcp_cnt_ofdm);
991 pos +=
992 scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
993 data->last_fa_cnt_ofdm);
994 pos +=
995 scnprintf(buf + pos, bufsz - pos, "last_bad_plcp_cnt_cck:\t\t %u\n",
996 data->last_bad_plcp_cnt_cck);
997 pos +=
998 scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
999 data->last_fa_cnt_cck);
1000 pos +=
1001 scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1002 data->nrg_curr_state);
1003 pos +=
1004 scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1005 data->nrg_prev_state);
1006 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1007 for (cnt = 0; cnt < 10; cnt++) {
1008 pos +=
1009 scnprintf(buf + pos, bufsz - pos, " %u",
1010 data->nrg_value[cnt]);
1011 }
1012 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1013 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1014 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1015 pos +=
1016 scnprintf(buf + pos, bufsz - pos, " %u",
1017 data->nrg_silence_rssi[cnt]);
1018 }
1019 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1020 pos +=
1021 scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1022 data->nrg_silence_ref);
1023 pos +=
1024 scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1025 data->nrg_energy_idx);
1026 pos +=
1027 scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1028 data->nrg_silence_idx);
1029 pos +=
1030 scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1031 data->nrg_th_cck);
1032 pos +=
1033 scnprintf(buf + pos, bufsz - pos,
1034 "nrg_auto_corr_silence_diff:\t %u\n",
1035 data->nrg_auto_corr_silence_diff);
1036 pos +=
1037 scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1038 data->num_in_cck_no_fa);
1039 pos +=
1040 scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1041 data->nrg_th_ofdm);
1042
1043 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1044 kfree(buf);
1045 return ret;
1046 }
1047
1048 static ssize_t
il_dbgfs_chain_noise_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1049 il_dbgfs_chain_noise_read(struct file *file, char __user *user_buf,
1050 size_t count, loff_t *ppos)
1051 {
1052
1053 struct il_priv *il = file->private_data;
1054 int pos = 0;
1055 int cnt = 0;
1056 char *buf;
1057 int bufsz = sizeof(struct il_chain_noise_data) * 4 + 100;
1058 ssize_t ret;
1059 struct il_chain_noise_data *data;
1060
1061 data = &il->chain_noise_data;
1062 buf = kzalloc(bufsz, GFP_KERNEL);
1063 if (!buf) {
1064 IL_ERR("Can not allocate Buffer\n");
1065 return -ENOMEM;
1066 }
1067
1068 pos +=
1069 scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1070 data->active_chains);
1071 pos +=
1072 scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1073 data->chain_noise_a);
1074 pos +=
1075 scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1076 data->chain_noise_b);
1077 pos +=
1078 scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1079 data->chain_noise_c);
1080 pos +=
1081 scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1082 data->chain_signal_a);
1083 pos +=
1084 scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1085 data->chain_signal_b);
1086 pos +=
1087 scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1088 data->chain_signal_c);
1089 pos +=
1090 scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1091 data->beacon_count);
1092
1093 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1094 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1095 pos +=
1096 scnprintf(buf + pos, bufsz - pos, " %u",
1097 data->disconn_array[cnt]);
1098 }
1099 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1100 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1101 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1102 pos +=
1103 scnprintf(buf + pos, bufsz - pos, " %u",
1104 data->delta_gain_code[cnt]);
1105 }
1106 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1107 pos +=
1108 scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1109 data->radio_write);
1110 pos +=
1111 scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1112 data->state);
1113
1114 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1115 kfree(buf);
1116 return ret;
1117 }
1118
1119 static ssize_t
il_dbgfs_power_save_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1120 il_dbgfs_power_save_status_read(struct file *file, char __user *user_buf,
1121 size_t count, loff_t *ppos)
1122 {
1123 struct il_priv *il = file->private_data;
1124 char buf[60];
1125 int pos = 0;
1126 const size_t bufsz = sizeof(buf);
1127 u32 pwrsave_status;
1128
1129 pwrsave_status =
1130 _il_rd(il, CSR_GP_CNTRL) & CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1131
1132 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1133 pos +=
1134 scnprintf(buf + pos, bufsz - pos, "%s\n",
1135 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1136 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1137 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1138 "error");
1139
1140 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1141 }
1142
1143 static ssize_t
il_dbgfs_clear_ucode_stats_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1144 il_dbgfs_clear_ucode_stats_write(struct file *file,
1145 const char __user *user_buf, size_t count,
1146 loff_t *ppos)
1147 {
1148 struct il_priv *il = file->private_data;
1149 char buf[8];
1150 int buf_size;
1151 int clear;
1152
1153 memset(buf, 0, sizeof(buf));
1154 buf_size = min(count, sizeof(buf) - 1);
1155 if (copy_from_user(buf, user_buf, buf_size))
1156 return -EFAULT;
1157 if (sscanf(buf, "%d", &clear) != 1)
1158 return -EFAULT;
1159
1160 /* make request to uCode to retrieve stats information */
1161 mutex_lock(&il->mutex);
1162 il_send_stats_request(il, CMD_SYNC, true);
1163 mutex_unlock(&il->mutex);
1164
1165 return count;
1166 }
1167
1168 static ssize_t
il_dbgfs_rxon_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1169 il_dbgfs_rxon_flags_read(struct file *file, char __user *user_buf,
1170 size_t count, loff_t *ppos)
1171 {
1172
1173 struct il_priv *il = file->private_data;
1174 int len = 0;
1175 char buf[20];
1176
1177 len = sprintf(buf, "0x%04X\n", le32_to_cpu(il->active.flags));
1178 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1179 }
1180
1181 static ssize_t
il_dbgfs_rxon_filter_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1182 il_dbgfs_rxon_filter_flags_read(struct file *file, char __user *user_buf,
1183 size_t count, loff_t *ppos)
1184 {
1185
1186 struct il_priv *il = file->private_data;
1187 int len = 0;
1188 char buf[20];
1189
1190 len =
1191 sprintf(buf, "0x%04X\n", le32_to_cpu(il->active.filter_flags));
1192 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1193 }
1194
1195 static ssize_t
il_dbgfs_fh_reg_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1196 il_dbgfs_fh_reg_read(struct file *file, char __user *user_buf, size_t count,
1197 loff_t *ppos)
1198 {
1199 struct il_priv *il = file->private_data;
1200 char *buf;
1201 int pos = 0;
1202 ssize_t ret = -EFAULT;
1203
1204 if (il->ops->dump_fh) {
1205 ret = pos = il->ops->dump_fh(il, &buf, true);
1206 if (buf) {
1207 ret =
1208 simple_read_from_buffer(user_buf, count, ppos, buf,
1209 pos);
1210 kfree(buf);
1211 }
1212 }
1213
1214 return ret;
1215 }
1216
1217 static ssize_t
il_dbgfs_missed_beacon_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1218 il_dbgfs_missed_beacon_read(struct file *file, char __user *user_buf,
1219 size_t count, loff_t *ppos)
1220 {
1221
1222 struct il_priv *il = file->private_data;
1223 int pos = 0;
1224 char buf[12];
1225 const size_t bufsz = sizeof(buf);
1226
1227 pos +=
1228 scnprintf(buf + pos, bufsz - pos, "%d\n",
1229 il->missed_beacon_threshold);
1230
1231 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1232 }
1233
1234 static ssize_t
il_dbgfs_missed_beacon_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1235 il_dbgfs_missed_beacon_write(struct file *file, const char __user *user_buf,
1236 size_t count, loff_t *ppos)
1237 {
1238 struct il_priv *il = file->private_data;
1239 char buf[8];
1240 int buf_size;
1241 int missed;
1242
1243 memset(buf, 0, sizeof(buf));
1244 buf_size = min(count, sizeof(buf) - 1);
1245 if (copy_from_user(buf, user_buf, buf_size))
1246 return -EFAULT;
1247 if (sscanf(buf, "%d", &missed) != 1)
1248 return -EINVAL;
1249
1250 if (missed < IL_MISSED_BEACON_THRESHOLD_MIN ||
1251 missed > IL_MISSED_BEACON_THRESHOLD_MAX)
1252 il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF;
1253 else
1254 il->missed_beacon_threshold = missed;
1255
1256 return count;
1257 }
1258
1259 static ssize_t
il_dbgfs_force_reset_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1260 il_dbgfs_force_reset_read(struct file *file, char __user *user_buf,
1261 size_t count, loff_t *ppos)
1262 {
1263
1264 struct il_priv *il = file->private_data;
1265 int pos = 0;
1266 char buf[300];
1267 const size_t bufsz = sizeof(buf);
1268 struct il_force_reset *force_reset;
1269
1270 force_reset = &il->force_reset;
1271
1272 pos +=
1273 scnprintf(buf + pos, bufsz - pos, "\tnumber of reset request: %d\n",
1274 force_reset->reset_request_count);
1275 pos +=
1276 scnprintf(buf + pos, bufsz - pos,
1277 "\tnumber of reset request success: %d\n",
1278 force_reset->reset_success_count);
1279 pos +=
1280 scnprintf(buf + pos, bufsz - pos,
1281 "\tnumber of reset request reject: %d\n",
1282 force_reset->reset_reject_count);
1283 pos +=
1284 scnprintf(buf + pos, bufsz - pos, "\treset duration: %lu\n",
1285 force_reset->reset_duration);
1286
1287 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1288 }
1289
1290 static ssize_t
il_dbgfs_force_reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1291 il_dbgfs_force_reset_write(struct file *file, const char __user *user_buf,
1292 size_t count, loff_t *ppos)
1293 {
1294
1295 int ret;
1296 struct il_priv *il = file->private_data;
1297
1298 ret = il_force_reset(il, true);
1299
1300 return ret ? ret : count;
1301 }
1302
1303 static ssize_t
il_dbgfs_wd_timeout_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1304 il_dbgfs_wd_timeout_write(struct file *file, const char __user *user_buf,
1305 size_t count, loff_t *ppos)
1306 {
1307
1308 struct il_priv *il = file->private_data;
1309 char buf[8];
1310 int buf_size;
1311 int timeout;
1312
1313 memset(buf, 0, sizeof(buf));
1314 buf_size = min(count, sizeof(buf) - 1);
1315 if (copy_from_user(buf, user_buf, buf_size))
1316 return -EFAULT;
1317 if (sscanf(buf, "%d", &timeout) != 1)
1318 return -EINVAL;
1319 if (timeout < 0 || timeout > IL_MAX_WD_TIMEOUT)
1320 timeout = IL_DEF_WD_TIMEOUT;
1321
1322 il->cfg->wd_timeout = timeout;
1323 il_setup_watchdog(il);
1324 return count;
1325 }
1326
1327 DEBUGFS_READ_FILE_OPS(rx_stats);
1328 DEBUGFS_READ_FILE_OPS(tx_stats);
1329 DEBUGFS_READ_FILE_OPS(rx_queue);
1330 DEBUGFS_READ_FILE_OPS(tx_queue);
1331 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1332 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1333 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1334 DEBUGFS_READ_FILE_OPS(sensitivity);
1335 DEBUGFS_READ_FILE_OPS(chain_noise);
1336 DEBUGFS_READ_FILE_OPS(power_save_status);
1337 DEBUGFS_WRITE_FILE_OPS(clear_ucode_stats);
1338 DEBUGFS_WRITE_FILE_OPS(clear_traffic_stats);
1339 DEBUGFS_READ_FILE_OPS(fh_reg);
1340 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1341 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1342 DEBUGFS_READ_FILE_OPS(rxon_flags);
1343 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1344 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
1345
1346 /*
1347 * Create the debugfs files and directories
1348 *
1349 */
1350 int
il_dbgfs_register(struct il_priv * il,const char * name)1351 il_dbgfs_register(struct il_priv *il, const char *name)
1352 {
1353 struct dentry *phyd = il->hw->wiphy->debugfsdir;
1354 struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1355
1356 dir_drv = debugfs_create_dir(name, phyd);
1357 if (!dir_drv)
1358 return -ENOMEM;
1359
1360 il->debugfs_dir = dir_drv;
1361
1362 dir_data = debugfs_create_dir("data", dir_drv);
1363 if (!dir_data)
1364 goto err;
1365 dir_rf = debugfs_create_dir("rf", dir_drv);
1366 if (!dir_rf)
1367 goto err;
1368 dir_debug = debugfs_create_dir("debug", dir_drv);
1369 if (!dir_debug)
1370 goto err;
1371
1372 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1373 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1374 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1375 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1376 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1377 DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1378 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1379 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1380 DEBUGFS_ADD_FILE(rx_stats, dir_debug, S_IRUSR);
1381 DEBUGFS_ADD_FILE(tx_stats, dir_debug, S_IRUSR);
1382 DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1383 DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1384 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1385 DEBUGFS_ADD_FILE(clear_ucode_stats, dir_debug, S_IWUSR);
1386 DEBUGFS_ADD_FILE(clear_traffic_stats, dir_debug, S_IWUSR);
1387 DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1388 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1389 DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1390 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1391 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1392 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1393
1394 if (il->cfg->sensitivity_calib_by_driver)
1395 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1396 if (il->cfg->chain_noise_calib_by_driver)
1397 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1398 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1399 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1400 DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
1401 if (il->cfg->sensitivity_calib_by_driver)
1402 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1403 &il->disable_sens_cal);
1404 if (il->cfg->chain_noise_calib_by_driver)
1405 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1406 &il->disable_chain_noise_cal);
1407 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf, &il->disable_tx_power_cal);
1408 return 0;
1409
1410 err:
1411 IL_ERR("Can't create the debugfs directory\n");
1412 il_dbgfs_unregister(il);
1413 return -ENOMEM;
1414 }
1415 EXPORT_SYMBOL(il_dbgfs_register);
1416
1417 /**
1418 * Remove the debugfs files and directories
1419 *
1420 */
1421 void
il_dbgfs_unregister(struct il_priv * il)1422 il_dbgfs_unregister(struct il_priv *il)
1423 {
1424 if (!il->debugfs_dir)
1425 return;
1426
1427 debugfs_remove_recursive(il->debugfs_dir);
1428 il->debugfs_dir = NULL;
1429 }
1430 EXPORT_SYMBOL(il_dbgfs_unregister);
1431