1 /*
2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
4 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <linux/module.h>
20 #include <linux/debugfs.h>
21 #include <linux/vmalloc.h>
22 #include <linux/crc32.h>
23 #include <linux/firmware.h>
24
25 #include "core.h"
26 #include "debug.h"
27 #include "hif.h"
28 #include "wmi-ops.h"
29
30 /* ms */
31 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
32
33 #define ATH10K_DEBUG_CAL_DATA_LEN 12064
34
ath10k_info(struct ath10k * ar,const char * fmt,...)35 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
36 {
37 struct va_format vaf = {
38 .fmt = fmt,
39 };
40 va_list args;
41
42 va_start(args, fmt);
43 vaf.va = &args;
44 dev_info(ar->dev, "%pV", &vaf);
45 trace_ath10k_log_info(ar, &vaf);
46 va_end(args);
47 }
48 EXPORT_SYMBOL(ath10k_info);
49
ath10k_debug_print_hwfw_info(struct ath10k * ar)50 void ath10k_debug_print_hwfw_info(struct ath10k *ar)
51 {
52 const struct firmware *firmware;
53 char fw_features[128] = {};
54 u32 crc = 0;
55
56 ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
57
58 ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
59 ar->hw_params.name,
60 ar->target_version,
61 ar->chip_id,
62 ar->id.subsystem_vendor, ar->id.subsystem_device);
63
64 ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
65 IS_ENABLED(CONFIG_ATH10K_DEBUG),
66 IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
67 IS_ENABLED(CONFIG_ATH10K_TRACING),
68 IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
69 IS_ENABLED(CONFIG_NL80211_TESTMODE));
70
71 firmware = ar->normal_mode_fw.fw_file.firmware;
72 if (firmware)
73 crc = crc32_le(0, firmware->data, firmware->size);
74
75 ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
76 ar->hw->wiphy->fw_version,
77 ar->fw_api,
78 fw_features,
79 crc);
80 }
81
ath10k_debug_print_board_info(struct ath10k * ar)82 void ath10k_debug_print_board_info(struct ath10k *ar)
83 {
84 char boardinfo[100];
85 const struct firmware *board;
86 u32 crc;
87
88 if (ar->id.bmi_ids_valid)
89 scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
90 ar->id.bmi_chip_id, ar->id.bmi_board_id);
91 else
92 scnprintf(boardinfo, sizeof(boardinfo), "N/A");
93
94 board = ar->normal_mode_fw.board;
95 if (!IS_ERR_OR_NULL(board))
96 crc = crc32_le(0, board->data, board->size);
97 else
98 crc = 0;
99
100 ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
101 ar->bd_api,
102 boardinfo,
103 crc);
104 }
105
ath10k_debug_print_boot_info(struct ath10k * ar)106 void ath10k_debug_print_boot_info(struct ath10k *ar)
107 {
108 ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
109 ar->htt.target_version_major,
110 ar->htt.target_version_minor,
111 ar->normal_mode_fw.fw_file.wmi_op_version,
112 ar->normal_mode_fw.fw_file.htt_op_version,
113 ath10k_cal_mode_str(ar->cal_mode),
114 ar->max_num_stations,
115 test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
116 !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
117 }
118
ath10k_print_driver_info(struct ath10k * ar)119 void ath10k_print_driver_info(struct ath10k *ar)
120 {
121 ath10k_debug_print_hwfw_info(ar);
122 ath10k_debug_print_board_info(ar);
123 ath10k_debug_print_boot_info(ar);
124 }
125 EXPORT_SYMBOL(ath10k_print_driver_info);
126
ath10k_err(struct ath10k * ar,const char * fmt,...)127 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
128 {
129 struct va_format vaf = {
130 .fmt = fmt,
131 };
132 va_list args;
133
134 va_start(args, fmt);
135 vaf.va = &args;
136 dev_err(ar->dev, "%pV", &vaf);
137 trace_ath10k_log_err(ar, &vaf);
138 va_end(args);
139 }
140 EXPORT_SYMBOL(ath10k_err);
141
ath10k_warn(struct ath10k * ar,const char * fmt,...)142 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
143 {
144 struct va_format vaf = {
145 .fmt = fmt,
146 };
147 va_list args;
148
149 va_start(args, fmt);
150 vaf.va = &args;
151 dev_warn_ratelimited(ar->dev, "%pV", &vaf);
152 trace_ath10k_log_warn(ar, &vaf);
153
154 va_end(args);
155 }
156 EXPORT_SYMBOL(ath10k_warn);
157
158 #ifdef CONFIG_ATH10K_DEBUGFS
159
ath10k_read_wmi_services(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)160 static ssize_t ath10k_read_wmi_services(struct file *file,
161 char __user *user_buf,
162 size_t count, loff_t *ppos)
163 {
164 struct ath10k *ar = file->private_data;
165 char *buf;
166 size_t len = 0, buf_len = 8192;
167 const char *name;
168 ssize_t ret_cnt;
169 bool enabled;
170 int i;
171
172 buf = kzalloc(buf_len, GFP_KERNEL);
173 if (!buf)
174 return -ENOMEM;
175
176 mutex_lock(&ar->conf_mutex);
177
178 spin_lock_bh(&ar->data_lock);
179 for (i = 0; i < WMI_SERVICE_MAX; i++) {
180 enabled = test_bit(i, ar->wmi.svc_map);
181 name = wmi_service_name(i);
182
183 if (!name) {
184 if (enabled)
185 len += scnprintf(buf + len, buf_len - len,
186 "%-40s %s (bit %d)\n",
187 "unknown", "enabled", i);
188
189 continue;
190 }
191
192 len += scnprintf(buf + len, buf_len - len,
193 "%-40s %s\n",
194 name, enabled ? "enabled" : "-");
195 }
196 spin_unlock_bh(&ar->data_lock);
197
198 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
199
200 mutex_unlock(&ar->conf_mutex);
201
202 kfree(buf);
203 return ret_cnt;
204 }
205
206 static const struct file_operations fops_wmi_services = {
207 .read = ath10k_read_wmi_services,
208 .open = simple_open,
209 .owner = THIS_MODULE,
210 .llseek = default_llseek,
211 };
212
ath10k_fw_stats_pdevs_free(struct list_head * head)213 static void ath10k_fw_stats_pdevs_free(struct list_head *head)
214 {
215 struct ath10k_fw_stats_pdev *i, *tmp;
216
217 list_for_each_entry_safe(i, tmp, head, list) {
218 list_del(&i->list);
219 kfree(i);
220 }
221 }
222
ath10k_fw_stats_vdevs_free(struct list_head * head)223 static void ath10k_fw_stats_vdevs_free(struct list_head *head)
224 {
225 struct ath10k_fw_stats_vdev *i, *tmp;
226
227 list_for_each_entry_safe(i, tmp, head, list) {
228 list_del(&i->list);
229 kfree(i);
230 }
231 }
232
ath10k_fw_stats_peers_free(struct list_head * head)233 static void ath10k_fw_stats_peers_free(struct list_head *head)
234 {
235 struct ath10k_fw_stats_peer *i, *tmp;
236
237 list_for_each_entry_safe(i, tmp, head, list) {
238 list_del(&i->list);
239 kfree(i);
240 }
241 }
242
ath10k_fw_extd_stats_peers_free(struct list_head * head)243 static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
244 {
245 struct ath10k_fw_extd_stats_peer *i, *tmp;
246
247 list_for_each_entry_safe(i, tmp, head, list) {
248 list_del(&i->list);
249 kfree(i);
250 }
251 }
252
ath10k_debug_fw_stats_reset(struct ath10k * ar)253 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
254 {
255 spin_lock_bh(&ar->data_lock);
256 ar->debug.fw_stats_done = false;
257 ar->debug.fw_stats.extended = false;
258 ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
259 ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
260 ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
261 ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
262 spin_unlock_bh(&ar->data_lock);
263 }
264
ath10k_debug_fw_stats_process(struct ath10k * ar,struct sk_buff * skb)265 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
266 {
267 struct ath10k_fw_stats stats = {};
268 bool is_start, is_started, is_end;
269 size_t num_peers;
270 size_t num_vdevs;
271 int ret;
272
273 INIT_LIST_HEAD(&stats.pdevs);
274 INIT_LIST_HEAD(&stats.vdevs);
275 INIT_LIST_HEAD(&stats.peers);
276 INIT_LIST_HEAD(&stats.peers_extd);
277
278 spin_lock_bh(&ar->data_lock);
279 ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
280 if (ret) {
281 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
282 goto free;
283 }
284
285 /* Stat data may exceed htc-wmi buffer limit. In such case firmware
286 * splits the stats data and delivers it in a ping-pong fashion of
287 * request cmd-update event.
288 *
289 * However there is no explicit end-of-data. Instead start-of-data is
290 * used as an implicit one. This works as follows:
291 * a) discard stat update events until one with pdev stats is
292 * delivered - this skips session started at end of (b)
293 * b) consume stat update events until another one with pdev stats is
294 * delivered which is treated as end-of-data and is itself discarded
295 */
296 if (ath10k_peer_stats_enabled(ar))
297 ath10k_sta_update_rx_duration(ar, &stats);
298
299 if (ar->debug.fw_stats_done) {
300 if (!ath10k_peer_stats_enabled(ar))
301 ath10k_warn(ar, "received unsolicited stats update event\n");
302
303 goto free;
304 }
305
306 num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
307 num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
308 is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
309 !list_empty(&stats.pdevs));
310 is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
311 !list_empty(&stats.pdevs));
312
313 if (is_start)
314 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
315
316 if (is_end)
317 ar->debug.fw_stats_done = true;
318
319 is_started = !list_empty(&ar->debug.fw_stats.pdevs);
320
321 if (is_started && !is_end) {
322 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
323 /* Although this is unlikely impose a sane limit to
324 * prevent firmware from DoS-ing the host.
325 */
326 ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
327 ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
328 ath10k_warn(ar, "dropping fw peer stats\n");
329 goto free;
330 }
331
332 if (num_vdevs >= BITS_PER_LONG) {
333 ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
334 ath10k_warn(ar, "dropping fw vdev stats\n");
335 goto free;
336 }
337
338 if (!list_empty(&stats.peers))
339 list_splice_tail_init(&stats.peers_extd,
340 &ar->debug.fw_stats.peers_extd);
341
342 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
343 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
344 }
345
346 complete(&ar->debug.fw_stats_complete);
347
348 free:
349 /* In some cases lists have been spliced and cleared. Free up
350 * resources if that is not the case.
351 */
352 ath10k_fw_stats_pdevs_free(&stats.pdevs);
353 ath10k_fw_stats_vdevs_free(&stats.vdevs);
354 ath10k_fw_stats_peers_free(&stats.peers);
355 ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
356
357 spin_unlock_bh(&ar->data_lock);
358 }
359
ath10k_debug_fw_stats_request(struct ath10k * ar)360 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
361 {
362 unsigned long timeout, time_left;
363 int ret;
364
365 lockdep_assert_held(&ar->conf_mutex);
366
367 timeout = jiffies + msecs_to_jiffies(1 * HZ);
368
369 ath10k_debug_fw_stats_reset(ar);
370
371 for (;;) {
372 if (time_after(jiffies, timeout))
373 return -ETIMEDOUT;
374
375 reinit_completion(&ar->debug.fw_stats_complete);
376
377 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
378 if (ret) {
379 ath10k_warn(ar, "could not request stats (%d)\n", ret);
380 return ret;
381 }
382
383 time_left =
384 wait_for_completion_timeout(&ar->debug.fw_stats_complete,
385 1 * HZ);
386 if (!time_left)
387 return -ETIMEDOUT;
388
389 spin_lock_bh(&ar->data_lock);
390 if (ar->debug.fw_stats_done) {
391 spin_unlock_bh(&ar->data_lock);
392 break;
393 }
394 spin_unlock_bh(&ar->data_lock);
395 }
396
397 return 0;
398 }
399
ath10k_fw_stats_open(struct inode * inode,struct file * file)400 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
401 {
402 struct ath10k *ar = inode->i_private;
403 void *buf = NULL;
404 int ret;
405
406 mutex_lock(&ar->conf_mutex);
407
408 if (ar->state != ATH10K_STATE_ON) {
409 ret = -ENETDOWN;
410 goto err_unlock;
411 }
412
413 buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
414 if (!buf) {
415 ret = -ENOMEM;
416 goto err_unlock;
417 }
418
419 ret = ath10k_debug_fw_stats_request(ar);
420 if (ret) {
421 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
422 goto err_free;
423 }
424
425 ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
426 if (ret) {
427 ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
428 goto err_free;
429 }
430
431 file->private_data = buf;
432
433 mutex_unlock(&ar->conf_mutex);
434 return 0;
435
436 err_free:
437 vfree(buf);
438
439 err_unlock:
440 mutex_unlock(&ar->conf_mutex);
441 return ret;
442 }
443
ath10k_fw_stats_release(struct inode * inode,struct file * file)444 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
445 {
446 vfree(file->private_data);
447
448 return 0;
449 }
450
ath10k_fw_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)451 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
452 size_t count, loff_t *ppos)
453 {
454 const char *buf = file->private_data;
455 size_t len = strlen(buf);
456
457 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
458 }
459
460 static const struct file_operations fops_fw_stats = {
461 .open = ath10k_fw_stats_open,
462 .release = ath10k_fw_stats_release,
463 .read = ath10k_fw_stats_read,
464 .owner = THIS_MODULE,
465 .llseek = default_llseek,
466 };
467
ath10k_debug_fw_reset_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)468 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
469 char __user *user_buf,
470 size_t count, loff_t *ppos)
471 {
472 struct ath10k *ar = file->private_data;
473 int ret;
474 size_t len = 0, buf_len = 500;
475 char *buf;
476
477 buf = kmalloc(buf_len, GFP_KERNEL);
478 if (!buf)
479 return -ENOMEM;
480
481 spin_lock_bh(&ar->data_lock);
482
483 len += scnprintf(buf + len, buf_len - len,
484 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
485 len += scnprintf(buf + len, buf_len - len,
486 "fw_warm_reset_counter\t\t%d\n",
487 ar->stats.fw_warm_reset_counter);
488 len += scnprintf(buf + len, buf_len - len,
489 "fw_cold_reset_counter\t\t%d\n",
490 ar->stats.fw_cold_reset_counter);
491
492 spin_unlock_bh(&ar->data_lock);
493
494 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
495
496 kfree(buf);
497
498 return ret;
499 }
500
501 static const struct file_operations fops_fw_reset_stats = {
502 .open = simple_open,
503 .read = ath10k_debug_fw_reset_stats_read,
504 .owner = THIS_MODULE,
505 .llseek = default_llseek,
506 };
507
508 /* This is a clean assert crash in firmware. */
ath10k_debug_fw_assert(struct ath10k * ar)509 static int ath10k_debug_fw_assert(struct ath10k *ar)
510 {
511 struct wmi_vdev_install_key_cmd *cmd;
512 struct sk_buff *skb;
513
514 skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
515 if (!skb)
516 return -ENOMEM;
517
518 cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
519 memset(cmd, 0, sizeof(*cmd));
520
521 /* big enough number so that firmware asserts */
522 cmd->vdev_id = __cpu_to_le32(0x7ffe);
523
524 return ath10k_wmi_cmd_send(ar, skb,
525 ar->wmi.cmd->vdev_install_key_cmdid);
526 }
527
ath10k_read_simulate_fw_crash(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)528 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
529 char __user *user_buf,
530 size_t count, loff_t *ppos)
531 {
532 const char buf[] =
533 "To simulate firmware crash write one of the keywords to this file:\n"
534 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
535 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
536 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
537 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
538
539 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
540 }
541
542 /* Simulate firmware crash:
543 * 'soft': Call wmi command causing firmware hang. This firmware hang is
544 * recoverable by warm firmware reset.
545 * 'hard': Force firmware crash by setting any vdev parameter for not allowed
546 * vdev id. This is hard firmware crash because it is recoverable only by cold
547 * firmware reset.
548 */
ath10k_write_simulate_fw_crash(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)549 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
550 const char __user *user_buf,
551 size_t count, loff_t *ppos)
552 {
553 struct ath10k *ar = file->private_data;
554 char buf[32] = {0};
555 ssize_t rc;
556 int ret;
557
558 /* filter partial writes and invalid commands */
559 if (*ppos != 0 || count >= sizeof(buf) || count == 0)
560 return -EINVAL;
561
562 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
563 if (rc < 0)
564 return rc;
565
566 /* drop the possible '\n' from the end */
567 if (buf[*ppos - 1] == '\n')
568 buf[*ppos - 1] = '\0';
569
570 mutex_lock(&ar->conf_mutex);
571
572 if (ar->state != ATH10K_STATE_ON &&
573 ar->state != ATH10K_STATE_RESTARTED) {
574 ret = -ENETDOWN;
575 goto exit;
576 }
577
578 if (!strcmp(buf, "soft")) {
579 ath10k_info(ar, "simulating soft firmware crash\n");
580 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
581 } else if (!strcmp(buf, "hard")) {
582 ath10k_info(ar, "simulating hard firmware crash\n");
583 /* 0x7fff is vdev id, and it is always out of range for all
584 * firmware variants in order to force a firmware crash.
585 */
586 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
587 ar->wmi.vdev_param->rts_threshold,
588 0);
589 } else if (!strcmp(buf, "assert")) {
590 ath10k_info(ar, "simulating firmware assert crash\n");
591 ret = ath10k_debug_fw_assert(ar);
592 } else if (!strcmp(buf, "hw-restart")) {
593 ath10k_info(ar, "user requested hw restart\n");
594 queue_work(ar->workqueue, &ar->restart_work);
595 ret = 0;
596 } else {
597 ret = -EINVAL;
598 goto exit;
599 }
600
601 if (ret) {
602 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
603 goto exit;
604 }
605
606 ret = count;
607
608 exit:
609 mutex_unlock(&ar->conf_mutex);
610 return ret;
611 }
612
613 static const struct file_operations fops_simulate_fw_crash = {
614 .read = ath10k_read_simulate_fw_crash,
615 .write = ath10k_write_simulate_fw_crash,
616 .open = simple_open,
617 .owner = THIS_MODULE,
618 .llseek = default_llseek,
619 };
620
ath10k_read_chip_id(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)621 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
622 size_t count, loff_t *ppos)
623 {
624 struct ath10k *ar = file->private_data;
625 size_t len;
626 char buf[50];
627
628 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
629
630 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
631 }
632
633 static const struct file_operations fops_chip_id = {
634 .read = ath10k_read_chip_id,
635 .open = simple_open,
636 .owner = THIS_MODULE,
637 .llseek = default_llseek,
638 };
639
ath10k_reg_addr_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)640 static ssize_t ath10k_reg_addr_read(struct file *file,
641 char __user *user_buf,
642 size_t count, loff_t *ppos)
643 {
644 struct ath10k *ar = file->private_data;
645 u8 buf[32];
646 size_t len = 0;
647 u32 reg_addr;
648
649 mutex_lock(&ar->conf_mutex);
650 reg_addr = ar->debug.reg_addr;
651 mutex_unlock(&ar->conf_mutex);
652
653 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
654
655 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
656 }
657
ath10k_reg_addr_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)658 static ssize_t ath10k_reg_addr_write(struct file *file,
659 const char __user *user_buf,
660 size_t count, loff_t *ppos)
661 {
662 struct ath10k *ar = file->private_data;
663 u32 reg_addr;
664 int ret;
665
666 ret = kstrtou32_from_user(user_buf, count, 0, ®_addr);
667 if (ret)
668 return ret;
669
670 if (!IS_ALIGNED(reg_addr, 4))
671 return -EFAULT;
672
673 mutex_lock(&ar->conf_mutex);
674 ar->debug.reg_addr = reg_addr;
675 mutex_unlock(&ar->conf_mutex);
676
677 return count;
678 }
679
680 static const struct file_operations fops_reg_addr = {
681 .read = ath10k_reg_addr_read,
682 .write = ath10k_reg_addr_write,
683 .open = simple_open,
684 .owner = THIS_MODULE,
685 .llseek = default_llseek,
686 };
687
ath10k_reg_value_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)688 static ssize_t ath10k_reg_value_read(struct file *file,
689 char __user *user_buf,
690 size_t count, loff_t *ppos)
691 {
692 struct ath10k *ar = file->private_data;
693 u8 buf[48];
694 size_t len;
695 u32 reg_addr, reg_val;
696 int ret;
697
698 mutex_lock(&ar->conf_mutex);
699
700 if (ar->state != ATH10K_STATE_ON &&
701 ar->state != ATH10K_STATE_UTF) {
702 ret = -ENETDOWN;
703 goto exit;
704 }
705
706 reg_addr = ar->debug.reg_addr;
707
708 reg_val = ath10k_hif_read32(ar, reg_addr);
709 len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
710
711 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
712
713 exit:
714 mutex_unlock(&ar->conf_mutex);
715
716 return ret;
717 }
718
ath10k_reg_value_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)719 static ssize_t ath10k_reg_value_write(struct file *file,
720 const char __user *user_buf,
721 size_t count, loff_t *ppos)
722 {
723 struct ath10k *ar = file->private_data;
724 u32 reg_addr, reg_val;
725 int ret;
726
727 mutex_lock(&ar->conf_mutex);
728
729 if (ar->state != ATH10K_STATE_ON &&
730 ar->state != ATH10K_STATE_UTF) {
731 ret = -ENETDOWN;
732 goto exit;
733 }
734
735 reg_addr = ar->debug.reg_addr;
736
737 ret = kstrtou32_from_user(user_buf, count, 0, ®_val);
738 if (ret)
739 goto exit;
740
741 ath10k_hif_write32(ar, reg_addr, reg_val);
742
743 ret = count;
744
745 exit:
746 mutex_unlock(&ar->conf_mutex);
747
748 return ret;
749 }
750
751 static const struct file_operations fops_reg_value = {
752 .read = ath10k_reg_value_read,
753 .write = ath10k_reg_value_write,
754 .open = simple_open,
755 .owner = THIS_MODULE,
756 .llseek = default_llseek,
757 };
758
ath10k_mem_value_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)759 static ssize_t ath10k_mem_value_read(struct file *file,
760 char __user *user_buf,
761 size_t count, loff_t *ppos)
762 {
763 struct ath10k *ar = file->private_data;
764 u8 *buf;
765 int ret;
766
767 if (*ppos < 0)
768 return -EINVAL;
769
770 if (!count)
771 return 0;
772
773 mutex_lock(&ar->conf_mutex);
774
775 buf = vmalloc(count);
776 if (!buf) {
777 ret = -ENOMEM;
778 goto exit;
779 }
780
781 if (ar->state != ATH10K_STATE_ON &&
782 ar->state != ATH10K_STATE_UTF) {
783 ret = -ENETDOWN;
784 goto exit;
785 }
786
787 ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
788 if (ret) {
789 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
790 (u32)(*ppos), ret);
791 goto exit;
792 }
793
794 ret = copy_to_user(user_buf, buf, count);
795 if (ret) {
796 ret = -EFAULT;
797 goto exit;
798 }
799
800 count -= ret;
801 *ppos += count;
802 ret = count;
803
804 exit:
805 vfree(buf);
806 mutex_unlock(&ar->conf_mutex);
807
808 return ret;
809 }
810
ath10k_mem_value_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)811 static ssize_t ath10k_mem_value_write(struct file *file,
812 const char __user *user_buf,
813 size_t count, loff_t *ppos)
814 {
815 struct ath10k *ar = file->private_data;
816 u8 *buf;
817 int ret;
818
819 if (*ppos < 0)
820 return -EINVAL;
821
822 if (!count)
823 return 0;
824
825 mutex_lock(&ar->conf_mutex);
826
827 buf = vmalloc(count);
828 if (!buf) {
829 ret = -ENOMEM;
830 goto exit;
831 }
832
833 if (ar->state != ATH10K_STATE_ON &&
834 ar->state != ATH10K_STATE_UTF) {
835 ret = -ENETDOWN;
836 goto exit;
837 }
838
839 ret = copy_from_user(buf, user_buf, count);
840 if (ret) {
841 ret = -EFAULT;
842 goto exit;
843 }
844
845 ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
846 if (ret) {
847 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
848 (u32)(*ppos), ret);
849 goto exit;
850 }
851
852 *ppos += count;
853 ret = count;
854
855 exit:
856 vfree(buf);
857 mutex_unlock(&ar->conf_mutex);
858
859 return ret;
860 }
861
862 static const struct file_operations fops_mem_value = {
863 .read = ath10k_mem_value_read,
864 .write = ath10k_mem_value_write,
865 .open = simple_open,
866 .owner = THIS_MODULE,
867 .llseek = default_llseek,
868 };
869
ath10k_debug_htt_stats_req(struct ath10k * ar)870 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
871 {
872 u64 cookie;
873 int ret;
874
875 lockdep_assert_held(&ar->conf_mutex);
876
877 if (ar->debug.htt_stats_mask == 0)
878 /* htt stats are disabled */
879 return 0;
880
881 if (ar->state != ATH10K_STATE_ON)
882 return 0;
883
884 cookie = get_jiffies_64();
885
886 ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
887 cookie);
888 if (ret) {
889 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
890 return ret;
891 }
892
893 queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
894 msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
895
896 return 0;
897 }
898
ath10k_debug_htt_stats_dwork(struct work_struct * work)899 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
900 {
901 struct ath10k *ar = container_of(work, struct ath10k,
902 debug.htt_stats_dwork.work);
903
904 mutex_lock(&ar->conf_mutex);
905
906 ath10k_debug_htt_stats_req(ar);
907
908 mutex_unlock(&ar->conf_mutex);
909 }
910
ath10k_read_htt_stats_mask(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)911 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
912 char __user *user_buf,
913 size_t count, loff_t *ppos)
914 {
915 struct ath10k *ar = file->private_data;
916 char buf[32];
917 size_t len;
918
919 len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
920
921 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
922 }
923
ath10k_write_htt_stats_mask(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)924 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
925 const char __user *user_buf,
926 size_t count, loff_t *ppos)
927 {
928 struct ath10k *ar = file->private_data;
929 unsigned long mask;
930 int ret;
931
932 ret = kstrtoul_from_user(user_buf, count, 0, &mask);
933 if (ret)
934 return ret;
935
936 /* max 8 bit masks (for now) */
937 if (mask > 0xff)
938 return -E2BIG;
939
940 mutex_lock(&ar->conf_mutex);
941
942 ar->debug.htt_stats_mask = mask;
943
944 ret = ath10k_debug_htt_stats_req(ar);
945 if (ret)
946 goto out;
947
948 ret = count;
949
950 out:
951 mutex_unlock(&ar->conf_mutex);
952
953 return ret;
954 }
955
956 static const struct file_operations fops_htt_stats_mask = {
957 .read = ath10k_read_htt_stats_mask,
958 .write = ath10k_write_htt_stats_mask,
959 .open = simple_open,
960 .owner = THIS_MODULE,
961 .llseek = default_llseek,
962 };
963
ath10k_read_htt_max_amsdu_ampdu(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)964 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
965 char __user *user_buf,
966 size_t count, loff_t *ppos)
967 {
968 struct ath10k *ar = file->private_data;
969 char buf[64];
970 u8 amsdu, ampdu;
971 size_t len;
972
973 mutex_lock(&ar->conf_mutex);
974
975 amsdu = ar->htt.max_num_amsdu;
976 ampdu = ar->htt.max_num_ampdu;
977 mutex_unlock(&ar->conf_mutex);
978
979 len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
980
981 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
982 }
983
ath10k_write_htt_max_amsdu_ampdu(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)984 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
985 const char __user *user_buf,
986 size_t count, loff_t *ppos)
987 {
988 struct ath10k *ar = file->private_data;
989 int res;
990 char buf[64] = {0};
991 unsigned int amsdu, ampdu;
992
993 res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
994 user_buf, count);
995 if (res <= 0)
996 return res;
997
998 res = sscanf(buf, "%u %u", &amsdu, &du);
999
1000 if (res != 2)
1001 return -EINVAL;
1002
1003 mutex_lock(&ar->conf_mutex);
1004
1005 res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1006 if (res)
1007 goto out;
1008
1009 res = count;
1010 ar->htt.max_num_amsdu = amsdu;
1011 ar->htt.max_num_ampdu = ampdu;
1012
1013 out:
1014 mutex_unlock(&ar->conf_mutex);
1015 return res;
1016 }
1017
1018 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1019 .read = ath10k_read_htt_max_amsdu_ampdu,
1020 .write = ath10k_write_htt_max_amsdu_ampdu,
1021 .open = simple_open,
1022 .owner = THIS_MODULE,
1023 .llseek = default_llseek,
1024 };
1025
ath10k_read_fw_dbglog(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1026 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1027 char __user *user_buf,
1028 size_t count, loff_t *ppos)
1029 {
1030 struct ath10k *ar = file->private_data;
1031 size_t len;
1032 char buf[96];
1033
1034 len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
1035 ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1036
1037 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1038 }
1039
ath10k_write_fw_dbglog(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1040 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1041 const char __user *user_buf,
1042 size_t count, loff_t *ppos)
1043 {
1044 struct ath10k *ar = file->private_data;
1045 int ret;
1046 char buf[96] = {0};
1047 unsigned int log_level;
1048 u64 mask;
1049
1050 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
1051 user_buf, count);
1052 if (ret <= 0)
1053 return ret;
1054
1055 ret = sscanf(buf, "%llx %u", &mask, &log_level);
1056
1057 if (!ret)
1058 return -EINVAL;
1059
1060 if (ret == 1)
1061 /* default if user did not specify */
1062 log_level = ATH10K_DBGLOG_LEVEL_WARN;
1063
1064 mutex_lock(&ar->conf_mutex);
1065
1066 ar->debug.fw_dbglog_mask = mask;
1067 ar->debug.fw_dbglog_level = log_level;
1068
1069 if (ar->state == ATH10K_STATE_ON) {
1070 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1071 ar->debug.fw_dbglog_level);
1072 if (ret) {
1073 ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1074 ret);
1075 goto exit;
1076 }
1077 }
1078
1079 ret = count;
1080
1081 exit:
1082 mutex_unlock(&ar->conf_mutex);
1083
1084 return ret;
1085 }
1086
1087 /* TODO: Would be nice to always support ethtool stats, would need to
1088 * move the stats storage out of ath10k_debug, or always have ath10k_debug
1089 * struct available..
1090 */
1091
1092 /* This generally cooresponds to the debugfs fw_stats file */
1093 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1094 "tx_pkts_nic",
1095 "tx_bytes_nic",
1096 "rx_pkts_nic",
1097 "rx_bytes_nic",
1098 "d_noise_floor",
1099 "d_cycle_count",
1100 "d_phy_error",
1101 "d_rts_bad",
1102 "d_rts_good",
1103 "d_tx_power", /* in .5 dbM I think */
1104 "d_rx_crc_err", /* fcs_bad */
1105 "d_no_beacon",
1106 "d_tx_mpdus_queued",
1107 "d_tx_msdu_queued",
1108 "d_tx_msdu_dropped",
1109 "d_local_enqued",
1110 "d_local_freed",
1111 "d_tx_ppdu_hw_queued",
1112 "d_tx_ppdu_reaped",
1113 "d_tx_fifo_underrun",
1114 "d_tx_ppdu_abort",
1115 "d_tx_mpdu_requed",
1116 "d_tx_excessive_retries",
1117 "d_tx_hw_rate",
1118 "d_tx_dropped_sw_retries",
1119 "d_tx_illegal_rate",
1120 "d_tx_continuous_xretries",
1121 "d_tx_timeout",
1122 "d_tx_mpdu_txop_limit",
1123 "d_pdev_resets",
1124 "d_rx_mid_ppdu_route_change",
1125 "d_rx_status",
1126 "d_rx_extra_frags_ring0",
1127 "d_rx_extra_frags_ring1",
1128 "d_rx_extra_frags_ring2",
1129 "d_rx_extra_frags_ring3",
1130 "d_rx_msdu_htt",
1131 "d_rx_mpdu_htt",
1132 "d_rx_msdu_stack",
1133 "d_rx_mpdu_stack",
1134 "d_rx_phy_err",
1135 "d_rx_phy_err_drops",
1136 "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1137 "d_fw_crash_count",
1138 "d_fw_warm_reset_count",
1139 "d_fw_cold_reset_count",
1140 };
1141
1142 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1143
ath10k_debug_get_et_strings(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 sset,u8 * data)1144 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1145 struct ieee80211_vif *vif,
1146 u32 sset, u8 *data)
1147 {
1148 if (sset == ETH_SS_STATS)
1149 memcpy(data, *ath10k_gstrings_stats,
1150 sizeof(ath10k_gstrings_stats));
1151 }
1152
ath10k_debug_get_et_sset_count(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int sset)1153 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1154 struct ieee80211_vif *vif, int sset)
1155 {
1156 if (sset == ETH_SS_STATS)
1157 return ATH10K_SSTATS_LEN;
1158
1159 return 0;
1160 }
1161
ath10k_debug_get_et_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ethtool_stats * stats,u64 * data)1162 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1163 struct ieee80211_vif *vif,
1164 struct ethtool_stats *stats, u64 *data)
1165 {
1166 struct ath10k *ar = hw->priv;
1167 static const struct ath10k_fw_stats_pdev zero_stats = {};
1168 const struct ath10k_fw_stats_pdev *pdev_stats;
1169 int i = 0, ret;
1170
1171 mutex_lock(&ar->conf_mutex);
1172
1173 if (ar->state == ATH10K_STATE_ON) {
1174 ret = ath10k_debug_fw_stats_request(ar);
1175 if (ret) {
1176 /* just print a warning and try to use older results */
1177 ath10k_warn(ar,
1178 "failed to get fw stats for ethtool: %d\n",
1179 ret);
1180 }
1181 }
1182
1183 pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1184 struct ath10k_fw_stats_pdev,
1185 list);
1186 if (!pdev_stats) {
1187 /* no results available so just return zeroes */
1188 pdev_stats = &zero_stats;
1189 }
1190
1191 spin_lock_bh(&ar->data_lock);
1192
1193 data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1194 data[i++] = 0; /* tx bytes */
1195 data[i++] = pdev_stats->htt_mpdus;
1196 data[i++] = 0; /* rx bytes */
1197 data[i++] = pdev_stats->ch_noise_floor;
1198 data[i++] = pdev_stats->cycle_count;
1199 data[i++] = pdev_stats->phy_err_count;
1200 data[i++] = pdev_stats->rts_bad;
1201 data[i++] = pdev_stats->rts_good;
1202 data[i++] = pdev_stats->chan_tx_power;
1203 data[i++] = pdev_stats->fcs_bad;
1204 data[i++] = pdev_stats->no_beacons;
1205 data[i++] = pdev_stats->mpdu_enqued;
1206 data[i++] = pdev_stats->msdu_enqued;
1207 data[i++] = pdev_stats->wmm_drop;
1208 data[i++] = pdev_stats->local_enqued;
1209 data[i++] = pdev_stats->local_freed;
1210 data[i++] = pdev_stats->hw_queued;
1211 data[i++] = pdev_stats->hw_reaped;
1212 data[i++] = pdev_stats->underrun;
1213 data[i++] = pdev_stats->tx_abort;
1214 data[i++] = pdev_stats->mpdus_requed;
1215 data[i++] = pdev_stats->tx_ko;
1216 data[i++] = pdev_stats->data_rc;
1217 data[i++] = pdev_stats->sw_retry_failure;
1218 data[i++] = pdev_stats->illgl_rate_phy_err;
1219 data[i++] = pdev_stats->pdev_cont_xretry;
1220 data[i++] = pdev_stats->pdev_tx_timeout;
1221 data[i++] = pdev_stats->txop_ovf;
1222 data[i++] = pdev_stats->pdev_resets;
1223 data[i++] = pdev_stats->mid_ppdu_route_change;
1224 data[i++] = pdev_stats->status_rcvd;
1225 data[i++] = pdev_stats->r0_frags;
1226 data[i++] = pdev_stats->r1_frags;
1227 data[i++] = pdev_stats->r2_frags;
1228 data[i++] = pdev_stats->r3_frags;
1229 data[i++] = pdev_stats->htt_msdus;
1230 data[i++] = pdev_stats->htt_mpdus;
1231 data[i++] = pdev_stats->loc_msdus;
1232 data[i++] = pdev_stats->loc_mpdus;
1233 data[i++] = pdev_stats->phy_errs;
1234 data[i++] = pdev_stats->phy_err_drop;
1235 data[i++] = pdev_stats->mpdu_errs;
1236 data[i++] = ar->stats.fw_crash_counter;
1237 data[i++] = ar->stats.fw_warm_reset_counter;
1238 data[i++] = ar->stats.fw_cold_reset_counter;
1239
1240 spin_unlock_bh(&ar->data_lock);
1241
1242 mutex_unlock(&ar->conf_mutex);
1243
1244 WARN_ON(i != ATH10K_SSTATS_LEN);
1245 }
1246
1247 static const struct file_operations fops_fw_dbglog = {
1248 .read = ath10k_read_fw_dbglog,
1249 .write = ath10k_write_fw_dbglog,
1250 .open = simple_open,
1251 .owner = THIS_MODULE,
1252 .llseek = default_llseek,
1253 };
1254
ath10k_debug_cal_data_fetch(struct ath10k * ar)1255 static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
1256 {
1257 u32 hi_addr;
1258 __le32 addr;
1259 int ret;
1260
1261 lockdep_assert_held(&ar->conf_mutex);
1262
1263 if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
1264 return -EINVAL;
1265
1266 hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1267
1268 ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1269 if (ret) {
1270 ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
1271 ret);
1272 return ret;
1273 }
1274
1275 ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
1276 ar->hw_params.cal_data_len);
1277 if (ret) {
1278 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1279 return ret;
1280 }
1281
1282 return 0;
1283 }
1284
ath10k_debug_cal_data_open(struct inode * inode,struct file * file)1285 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1286 {
1287 struct ath10k *ar = inode->i_private;
1288
1289 mutex_lock(&ar->conf_mutex);
1290
1291 if (ar->state == ATH10K_STATE_ON ||
1292 ar->state == ATH10K_STATE_UTF) {
1293 ath10k_debug_cal_data_fetch(ar);
1294 }
1295
1296 file->private_data = ar;
1297 mutex_unlock(&ar->conf_mutex);
1298
1299 return 0;
1300 }
1301
ath10k_debug_cal_data_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1302 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1303 char __user *user_buf,
1304 size_t count, loff_t *ppos)
1305 {
1306 struct ath10k *ar = file->private_data;
1307
1308 mutex_lock(&ar->conf_mutex);
1309
1310 count = simple_read_from_buffer(user_buf, count, ppos,
1311 ar->debug.cal_data,
1312 ar->hw_params.cal_data_len);
1313
1314 mutex_unlock(&ar->conf_mutex);
1315
1316 return count;
1317 }
1318
ath10k_write_ani_enable(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1319 static ssize_t ath10k_write_ani_enable(struct file *file,
1320 const char __user *user_buf,
1321 size_t count, loff_t *ppos)
1322 {
1323 struct ath10k *ar = file->private_data;
1324 int ret;
1325 u8 enable;
1326
1327 if (kstrtou8_from_user(user_buf, count, 0, &enable))
1328 return -EINVAL;
1329
1330 mutex_lock(&ar->conf_mutex);
1331
1332 if (ar->ani_enabled == enable) {
1333 ret = count;
1334 goto exit;
1335 }
1336
1337 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1338 enable);
1339 if (ret) {
1340 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1341 goto exit;
1342 }
1343 ar->ani_enabled = enable;
1344
1345 ret = count;
1346
1347 exit:
1348 mutex_unlock(&ar->conf_mutex);
1349
1350 return ret;
1351 }
1352
ath10k_read_ani_enable(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1353 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1354 size_t count, loff_t *ppos)
1355 {
1356 struct ath10k *ar = file->private_data;
1357 size_t len;
1358 char buf[32];
1359
1360 len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled);
1361
1362 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1363 }
1364
1365 static const struct file_operations fops_ani_enable = {
1366 .read = ath10k_read_ani_enable,
1367 .write = ath10k_write_ani_enable,
1368 .open = simple_open,
1369 .owner = THIS_MODULE,
1370 .llseek = default_llseek,
1371 };
1372
1373 static const struct file_operations fops_cal_data = {
1374 .open = ath10k_debug_cal_data_open,
1375 .read = ath10k_debug_cal_data_read,
1376 .owner = THIS_MODULE,
1377 .llseek = default_llseek,
1378 };
1379
ath10k_read_nf_cal_period(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1380 static ssize_t ath10k_read_nf_cal_period(struct file *file,
1381 char __user *user_buf,
1382 size_t count, loff_t *ppos)
1383 {
1384 struct ath10k *ar = file->private_data;
1385 size_t len;
1386 char buf[32];
1387
1388 len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period);
1389
1390 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1391 }
1392
ath10k_write_nf_cal_period(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1393 static ssize_t ath10k_write_nf_cal_period(struct file *file,
1394 const char __user *user_buf,
1395 size_t count, loff_t *ppos)
1396 {
1397 struct ath10k *ar = file->private_data;
1398 unsigned long period;
1399 int ret;
1400
1401 ret = kstrtoul_from_user(user_buf, count, 0, &period);
1402 if (ret)
1403 return ret;
1404
1405 if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1406 return -EINVAL;
1407
1408 /* there's no way to switch back to the firmware default */
1409 if (period == 0)
1410 return -EINVAL;
1411
1412 mutex_lock(&ar->conf_mutex);
1413
1414 ar->debug.nf_cal_period = period;
1415
1416 if (ar->state != ATH10K_STATE_ON) {
1417 /* firmware is not running, nothing else to do */
1418 ret = count;
1419 goto exit;
1420 }
1421
1422 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1423 ar->debug.nf_cal_period);
1424 if (ret) {
1425 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1426 ret);
1427 goto exit;
1428 }
1429
1430 ret = count;
1431
1432 exit:
1433 mutex_unlock(&ar->conf_mutex);
1434
1435 return ret;
1436 }
1437
1438 static const struct file_operations fops_nf_cal_period = {
1439 .read = ath10k_read_nf_cal_period,
1440 .write = ath10k_write_nf_cal_period,
1441 .open = simple_open,
1442 .owner = THIS_MODULE,
1443 .llseek = default_llseek,
1444 };
1445
1446 #define ATH10K_TPC_CONFIG_BUF_SIZE (1024 * 1024)
1447
ath10k_debug_tpc_stats_request(struct ath10k * ar)1448 static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
1449 {
1450 int ret;
1451 unsigned long time_left;
1452
1453 lockdep_assert_held(&ar->conf_mutex);
1454
1455 reinit_completion(&ar->debug.tpc_complete);
1456
1457 ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
1458 if (ret) {
1459 ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
1460 return ret;
1461 }
1462
1463 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1464 1 * HZ);
1465 if (time_left == 0)
1466 return -ETIMEDOUT;
1467
1468 return 0;
1469 }
1470
ath10k_debug_tpc_stats_process(struct ath10k * ar,struct ath10k_tpc_stats * tpc_stats)1471 void ath10k_debug_tpc_stats_process(struct ath10k *ar,
1472 struct ath10k_tpc_stats *tpc_stats)
1473 {
1474 spin_lock_bh(&ar->data_lock);
1475
1476 kfree(ar->debug.tpc_stats);
1477 ar->debug.tpc_stats = tpc_stats;
1478 complete(&ar->debug.tpc_complete);
1479
1480 spin_unlock_bh(&ar->data_lock);
1481 }
1482
1483 void
ath10k_debug_tpc_stats_final_process(struct ath10k * ar,struct ath10k_tpc_stats_final * tpc_stats)1484 ath10k_debug_tpc_stats_final_process(struct ath10k *ar,
1485 struct ath10k_tpc_stats_final *tpc_stats)
1486 {
1487 spin_lock_bh(&ar->data_lock);
1488
1489 kfree(ar->debug.tpc_stats_final);
1490 ar->debug.tpc_stats_final = tpc_stats;
1491 complete(&ar->debug.tpc_complete);
1492
1493 spin_unlock_bh(&ar->data_lock);
1494 }
1495
ath10k_tpc_stats_print(struct ath10k_tpc_stats * tpc_stats,unsigned int j,char * buf,size_t * len)1496 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
1497 unsigned int j, char *buf, size_t *len)
1498 {
1499 int i;
1500 size_t buf_len;
1501 static const char table_str[][5] = { "CDD",
1502 "STBC",
1503 "TXBF" };
1504 static const char pream_str[][6] = { "CCK",
1505 "OFDM",
1506 "HT20",
1507 "HT40",
1508 "VHT20",
1509 "VHT40",
1510 "VHT80",
1511 "HTCUP" };
1512
1513 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1514 *len += scnprintf(buf + *len, buf_len - *len,
1515 "********************************\n");
1516 *len += scnprintf(buf + *len, buf_len - *len,
1517 "******************* %s POWER TABLE ****************\n",
1518 table_str[j]);
1519 *len += scnprintf(buf + *len, buf_len - *len,
1520 "********************************\n");
1521 *len += scnprintf(buf + *len, buf_len - *len,
1522 "No. Preamble Rate_code ");
1523
1524 for (i = 0; i < WMI_TPC_TX_N_CHAIN; i++)
1525 *len += scnprintf(buf + *len, buf_len - *len,
1526 "tpc_value%d ", i);
1527
1528 *len += scnprintf(buf + *len, buf_len - *len, "\n");
1529
1530 for (i = 0; i < tpc_stats->rate_max; i++) {
1531 *len += scnprintf(buf + *len, buf_len - *len,
1532 "%8d %s 0x%2x %s\n", i,
1533 pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1534 tpc_stats->tpc_table[j].rate_code[i],
1535 tpc_stats->tpc_table[j].tpc_value[i]);
1536 }
1537
1538 *len += scnprintf(buf + *len, buf_len - *len,
1539 "***********************************\n");
1540 }
1541
ath10k_tpc_stats_fill(struct ath10k * ar,struct ath10k_tpc_stats * tpc_stats,char * buf)1542 static void ath10k_tpc_stats_fill(struct ath10k *ar,
1543 struct ath10k_tpc_stats *tpc_stats,
1544 char *buf)
1545 {
1546 int j;
1547 size_t len, buf_len;
1548
1549 len = 0;
1550 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1551
1552 spin_lock_bh(&ar->data_lock);
1553
1554 if (!tpc_stats) {
1555 ath10k_warn(ar, "failed to get tpc stats\n");
1556 goto unlock;
1557 }
1558
1559 len += scnprintf(buf + len, buf_len - len, "\n");
1560 len += scnprintf(buf + len, buf_len - len,
1561 "*************************************\n");
1562 len += scnprintf(buf + len, buf_len - len,
1563 "TPC config for channel %4d mode %d\n",
1564 tpc_stats->chan_freq,
1565 tpc_stats->phy_mode);
1566 len += scnprintf(buf + len, buf_len - len,
1567 "*************************************\n");
1568 len += scnprintf(buf + len, buf_len - len,
1569 "CTL = 0x%2x Reg. Domain = %2d\n",
1570 tpc_stats->ctl,
1571 tpc_stats->reg_domain);
1572 len += scnprintf(buf + len, buf_len - len,
1573 "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n",
1574 tpc_stats->twice_antenna_gain,
1575 tpc_stats->twice_antenna_reduction);
1576 len += scnprintf(buf + len, buf_len - len,
1577 "Power Limit = %2d Reg. Max Power = %2d\n",
1578 tpc_stats->power_limit,
1579 tpc_stats->twice_max_rd_power / 2);
1580 len += scnprintf(buf + len, buf_len - len,
1581 "Num tx chains = %2d Num supported rates = %2d\n",
1582 tpc_stats->num_tx_chain,
1583 tpc_stats->rate_max);
1584
1585 for (j = 0; j < WMI_TPC_FLAG; j++) {
1586 switch (j) {
1587 case WMI_TPC_TABLE_TYPE_CDD:
1588 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1589 len += scnprintf(buf + len, buf_len - len,
1590 "CDD not supported\n");
1591 break;
1592 }
1593
1594 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1595 break;
1596 case WMI_TPC_TABLE_TYPE_STBC:
1597 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1598 len += scnprintf(buf + len, buf_len - len,
1599 "STBC not supported\n");
1600 break;
1601 }
1602
1603 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1604 break;
1605 case WMI_TPC_TABLE_TYPE_TXBF:
1606 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1607 len += scnprintf(buf + len, buf_len - len,
1608 "TXBF not supported\n***************************\n");
1609 break;
1610 }
1611
1612 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1613 break;
1614 default:
1615 len += scnprintf(buf + len, buf_len - len,
1616 "Invalid Type\n");
1617 break;
1618 }
1619 }
1620
1621 unlock:
1622 spin_unlock_bh(&ar->data_lock);
1623
1624 if (len >= buf_len)
1625 buf[len - 1] = 0;
1626 else
1627 buf[len] = 0;
1628 }
1629
ath10k_tpc_stats_open(struct inode * inode,struct file * file)1630 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1631 {
1632 struct ath10k *ar = inode->i_private;
1633 void *buf = NULL;
1634 int ret;
1635
1636 mutex_lock(&ar->conf_mutex);
1637
1638 if (ar->state != ATH10K_STATE_ON) {
1639 ret = -ENETDOWN;
1640 goto err_unlock;
1641 }
1642
1643 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1644 if (!buf) {
1645 ret = -ENOMEM;
1646 goto err_unlock;
1647 }
1648
1649 ret = ath10k_debug_tpc_stats_request(ar);
1650 if (ret) {
1651 ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1652 ret);
1653 goto err_free;
1654 }
1655
1656 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1657 file->private_data = buf;
1658
1659 mutex_unlock(&ar->conf_mutex);
1660 return 0;
1661
1662 err_free:
1663 vfree(buf);
1664
1665 err_unlock:
1666 mutex_unlock(&ar->conf_mutex);
1667 return ret;
1668 }
1669
ath10k_tpc_stats_release(struct inode * inode,struct file * file)1670 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1671 {
1672 vfree(file->private_data);
1673
1674 return 0;
1675 }
1676
ath10k_tpc_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1677 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1678 size_t count, loff_t *ppos)
1679 {
1680 const char *buf = file->private_data;
1681 size_t len = strlen(buf);
1682
1683 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1684 }
1685
1686 static const struct file_operations fops_tpc_stats = {
1687 .open = ath10k_tpc_stats_open,
1688 .release = ath10k_tpc_stats_release,
1689 .read = ath10k_tpc_stats_read,
1690 .owner = THIS_MODULE,
1691 .llseek = default_llseek,
1692 };
1693
ath10k_debug_start(struct ath10k * ar)1694 int ath10k_debug_start(struct ath10k *ar)
1695 {
1696 int ret;
1697
1698 lockdep_assert_held(&ar->conf_mutex);
1699
1700 ret = ath10k_debug_htt_stats_req(ar);
1701 if (ret)
1702 /* continue normally anyway, this isn't serious */
1703 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1704 ret);
1705
1706 if (ar->debug.fw_dbglog_mask) {
1707 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1708 ATH10K_DBGLOG_LEVEL_WARN);
1709 if (ret)
1710 /* not serious */
1711 ath10k_warn(ar, "failed to enable dbglog during start: %d",
1712 ret);
1713 }
1714
1715 if (ar->pktlog_filter) {
1716 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1717 ar->pktlog_filter);
1718 if (ret)
1719 /* not serious */
1720 ath10k_warn(ar,
1721 "failed to enable pktlog filter %x: %d\n",
1722 ar->pktlog_filter, ret);
1723 } else {
1724 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1725 if (ret)
1726 /* not serious */
1727 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1728 }
1729
1730 if (ar->debug.nf_cal_period &&
1731 !test_bit(ATH10K_FW_FEATURE_NON_BMI,
1732 ar->normal_mode_fw.fw_file.fw_features)) {
1733 ret = ath10k_wmi_pdev_set_param(ar,
1734 ar->wmi.pdev_param->cal_period,
1735 ar->debug.nf_cal_period);
1736 if (ret)
1737 /* not serious */
1738 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1739 ret);
1740 }
1741
1742 return ret;
1743 }
1744
ath10k_debug_stop(struct ath10k * ar)1745 void ath10k_debug_stop(struct ath10k *ar)
1746 {
1747 lockdep_assert_held(&ar->conf_mutex);
1748
1749 if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
1750 ar->normal_mode_fw.fw_file.fw_features))
1751 ath10k_debug_cal_data_fetch(ar);
1752
1753 /* Must not use _sync to avoid deadlock, we do that in
1754 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1755 * warning from del_timer().
1756 */
1757 if (ar->debug.htt_stats_mask != 0)
1758 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1759
1760 ath10k_wmi_pdev_pktlog_disable(ar);
1761 }
1762
ath10k_write_simulate_radar(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1763 static ssize_t ath10k_write_simulate_radar(struct file *file,
1764 const char __user *user_buf,
1765 size_t count, loff_t *ppos)
1766 {
1767 struct ath10k *ar = file->private_data;
1768 struct ath10k_vif *arvif;
1769
1770 /* Just check for for the first vif alone, as all the vifs will be
1771 * sharing the same channel and if the channel is disabled, all the
1772 * vifs will share the same 'is_started' state.
1773 */
1774 arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
1775 if (!arvif->is_started)
1776 return -EINVAL;
1777
1778 ieee80211_radar_detected(ar->hw);
1779
1780 return count;
1781 }
1782
1783 static const struct file_operations fops_simulate_radar = {
1784 .write = ath10k_write_simulate_radar,
1785 .open = simple_open,
1786 .owner = THIS_MODULE,
1787 .llseek = default_llseek,
1788 };
1789
1790 #define ATH10K_DFS_STAT(s, p) (\
1791 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1792 ar->debug.dfs_stats.p))
1793
1794 #define ATH10K_DFS_POOL_STAT(s, p) (\
1795 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1796 ar->debug.dfs_pool_stats.p))
1797
ath10k_read_dfs_stats(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1798 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1799 size_t count, loff_t *ppos)
1800 {
1801 int retval = 0, len = 0;
1802 const int size = 8000;
1803 struct ath10k *ar = file->private_data;
1804 char *buf;
1805
1806 buf = kzalloc(size, GFP_KERNEL);
1807 if (buf == NULL)
1808 return -ENOMEM;
1809
1810 if (!ar->dfs_detector) {
1811 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1812 goto exit;
1813 }
1814
1815 ar->debug.dfs_pool_stats =
1816 ar->dfs_detector->get_stats(ar->dfs_detector);
1817
1818 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1819
1820 ATH10K_DFS_STAT("reported phy errors", phy_errors);
1821 ATH10K_DFS_STAT("pulse events reported", pulses_total);
1822 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1823 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1824 ATH10K_DFS_STAT("Radars detected", radar_detected);
1825
1826 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1827 ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1828 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1829 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1830 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1831 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1832 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1833 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1834
1835 exit:
1836 if (len > size)
1837 len = size;
1838
1839 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1840 kfree(buf);
1841
1842 return retval;
1843 }
1844
1845 static const struct file_operations fops_dfs_stats = {
1846 .read = ath10k_read_dfs_stats,
1847 .open = simple_open,
1848 .owner = THIS_MODULE,
1849 .llseek = default_llseek,
1850 };
1851
ath10k_write_pktlog_filter(struct file * file,const char __user * ubuf,size_t count,loff_t * ppos)1852 static ssize_t ath10k_write_pktlog_filter(struct file *file,
1853 const char __user *ubuf,
1854 size_t count, loff_t *ppos)
1855 {
1856 struct ath10k *ar = file->private_data;
1857 u32 filter;
1858 int ret;
1859
1860 if (kstrtouint_from_user(ubuf, count, 0, &filter))
1861 return -EINVAL;
1862
1863 mutex_lock(&ar->conf_mutex);
1864
1865 if (ar->state != ATH10K_STATE_ON) {
1866 ar->pktlog_filter = filter;
1867 ret = count;
1868 goto out;
1869 }
1870
1871 if (filter == ar->pktlog_filter) {
1872 ret = count;
1873 goto out;
1874 }
1875
1876 if (filter) {
1877 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1878 if (ret) {
1879 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1880 ar->pktlog_filter, ret);
1881 goto out;
1882 }
1883 } else {
1884 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1885 if (ret) {
1886 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1887 goto out;
1888 }
1889 }
1890
1891 ar->pktlog_filter = filter;
1892 ret = count;
1893
1894 out:
1895 mutex_unlock(&ar->conf_mutex);
1896 return ret;
1897 }
1898
ath10k_read_pktlog_filter(struct file * file,char __user * ubuf,size_t count,loff_t * ppos)1899 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1900 size_t count, loff_t *ppos)
1901 {
1902 char buf[32];
1903 struct ath10k *ar = file->private_data;
1904 int len = 0;
1905
1906 mutex_lock(&ar->conf_mutex);
1907 len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1908 ar->pktlog_filter);
1909 mutex_unlock(&ar->conf_mutex);
1910
1911 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1912 }
1913
1914 static const struct file_operations fops_pktlog_filter = {
1915 .read = ath10k_read_pktlog_filter,
1916 .write = ath10k_write_pktlog_filter,
1917 .open = simple_open
1918 };
1919
ath10k_write_quiet_period(struct file * file,const char __user * ubuf,size_t count,loff_t * ppos)1920 static ssize_t ath10k_write_quiet_period(struct file *file,
1921 const char __user *ubuf,
1922 size_t count, loff_t *ppos)
1923 {
1924 struct ath10k *ar = file->private_data;
1925 u32 period;
1926
1927 if (kstrtouint_from_user(ubuf, count, 0, &period))
1928 return -EINVAL;
1929
1930 if (period < ATH10K_QUIET_PERIOD_MIN) {
1931 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
1932 period);
1933 return -EINVAL;
1934 }
1935 mutex_lock(&ar->conf_mutex);
1936 ar->thermal.quiet_period = period;
1937 ath10k_thermal_set_throttling(ar);
1938 mutex_unlock(&ar->conf_mutex);
1939
1940 return count;
1941 }
1942
ath10k_read_quiet_period(struct file * file,char __user * ubuf,size_t count,loff_t * ppos)1943 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
1944 size_t count, loff_t *ppos)
1945 {
1946 char buf[32];
1947 struct ath10k *ar = file->private_data;
1948 int len = 0;
1949
1950 mutex_lock(&ar->conf_mutex);
1951 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1952 ar->thermal.quiet_period);
1953 mutex_unlock(&ar->conf_mutex);
1954
1955 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1956 }
1957
1958 static const struct file_operations fops_quiet_period = {
1959 .read = ath10k_read_quiet_period,
1960 .write = ath10k_write_quiet_period,
1961 .open = simple_open
1962 };
1963
ath10k_write_btcoex(struct file * file,const char __user * ubuf,size_t count,loff_t * ppos)1964 static ssize_t ath10k_write_btcoex(struct file *file,
1965 const char __user *ubuf,
1966 size_t count, loff_t *ppos)
1967 {
1968 struct ath10k *ar = file->private_data;
1969 char buf[32];
1970 size_t buf_size;
1971 int ret;
1972 bool val;
1973 u32 pdev_param;
1974
1975 buf_size = min(count, (sizeof(buf) - 1));
1976 if (copy_from_user(buf, ubuf, buf_size))
1977 return -EFAULT;
1978
1979 buf[buf_size] = '\0';
1980
1981 if (strtobool(buf, &val) != 0)
1982 return -EINVAL;
1983
1984 mutex_lock(&ar->conf_mutex);
1985
1986 if (ar->state != ATH10K_STATE_ON &&
1987 ar->state != ATH10K_STATE_RESTARTED) {
1988 ret = -ENETDOWN;
1989 goto exit;
1990 }
1991
1992 if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
1993 ret = count;
1994 goto exit;
1995 }
1996
1997 pdev_param = ar->wmi.pdev_param->enable_btcoex;
1998 if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
1999 ar->running_fw->fw_file.fw_features)) {
2000 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
2001 if (ret) {
2002 ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
2003 ret = count;
2004 goto exit;
2005 }
2006 } else {
2007 ath10k_info(ar, "restarting firmware due to btcoex change");
2008 queue_work(ar->workqueue, &ar->restart_work);
2009 }
2010
2011 if (val)
2012 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2013 else
2014 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2015
2016 ret = count;
2017
2018 exit:
2019 mutex_unlock(&ar->conf_mutex);
2020
2021 return ret;
2022 }
2023
ath10k_read_btcoex(struct file * file,char __user * ubuf,size_t count,loff_t * ppos)2024 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2025 size_t count, loff_t *ppos)
2026 {
2027 char buf[32];
2028 struct ath10k *ar = file->private_data;
2029 int len = 0;
2030
2031 mutex_lock(&ar->conf_mutex);
2032 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2033 test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2034 mutex_unlock(&ar->conf_mutex);
2035
2036 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2037 }
2038
2039 static const struct file_operations fops_btcoex = {
2040 .read = ath10k_read_btcoex,
2041 .write = ath10k_write_btcoex,
2042 .open = simple_open
2043 };
2044
ath10k_write_peer_stats(struct file * file,const char __user * ubuf,size_t count,loff_t * ppos)2045 static ssize_t ath10k_write_peer_stats(struct file *file,
2046 const char __user *ubuf,
2047 size_t count, loff_t *ppos)
2048 {
2049 struct ath10k *ar = file->private_data;
2050 char buf[32];
2051 size_t buf_size;
2052 int ret;
2053 bool val;
2054
2055 buf_size = min(count, (sizeof(buf) - 1));
2056 if (copy_from_user(buf, ubuf, buf_size))
2057 return -EFAULT;
2058
2059 buf[buf_size] = '\0';
2060
2061 if (strtobool(buf, &val) != 0)
2062 return -EINVAL;
2063
2064 mutex_lock(&ar->conf_mutex);
2065
2066 if (ar->state != ATH10K_STATE_ON &&
2067 ar->state != ATH10K_STATE_RESTARTED) {
2068 ret = -ENETDOWN;
2069 goto exit;
2070 }
2071
2072 if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2073 ret = count;
2074 goto exit;
2075 }
2076
2077 if (val)
2078 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2079 else
2080 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2081
2082 ath10k_info(ar, "restarting firmware due to Peer stats change");
2083
2084 queue_work(ar->workqueue, &ar->restart_work);
2085 ret = count;
2086
2087 exit:
2088 mutex_unlock(&ar->conf_mutex);
2089 return ret;
2090 }
2091
ath10k_read_peer_stats(struct file * file,char __user * ubuf,size_t count,loff_t * ppos)2092 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2093 size_t count, loff_t *ppos)
2094
2095 {
2096 char buf[32];
2097 struct ath10k *ar = file->private_data;
2098 int len = 0;
2099
2100 mutex_lock(&ar->conf_mutex);
2101 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2102 test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2103 mutex_unlock(&ar->conf_mutex);
2104
2105 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2106 }
2107
2108 static const struct file_operations fops_peer_stats = {
2109 .read = ath10k_read_peer_stats,
2110 .write = ath10k_write_peer_stats,
2111 .open = simple_open
2112 };
2113
ath10k_debug_fw_checksums_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2114 static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2115 char __user *user_buf,
2116 size_t count, loff_t *ppos)
2117 {
2118 struct ath10k *ar = file->private_data;
2119 size_t len = 0, buf_len = 4096;
2120 ssize_t ret_cnt;
2121 char *buf;
2122
2123 buf = kzalloc(buf_len, GFP_KERNEL);
2124 if (!buf)
2125 return -ENOMEM;
2126
2127 mutex_lock(&ar->conf_mutex);
2128
2129 len += scnprintf(buf + len, buf_len - len,
2130 "firmware-N.bin\t\t%08x\n",
2131 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2132 ar->normal_mode_fw.fw_file.firmware->size));
2133 len += scnprintf(buf + len, buf_len - len,
2134 "athwlan\t\t\t%08x\n",
2135 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2136 ar->normal_mode_fw.fw_file.firmware_len));
2137 len += scnprintf(buf + len, buf_len - len,
2138 "otp\t\t\t%08x\n",
2139 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2140 ar->normal_mode_fw.fw_file.otp_len));
2141 len += scnprintf(buf + len, buf_len - len,
2142 "codeswap\t\t%08x\n",
2143 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2144 ar->normal_mode_fw.fw_file.codeswap_len));
2145 len += scnprintf(buf + len, buf_len - len,
2146 "board-N.bin\t\t%08x\n",
2147 crc32_le(0, ar->normal_mode_fw.board->data,
2148 ar->normal_mode_fw.board->size));
2149 len += scnprintf(buf + len, buf_len - len,
2150 "board\t\t\t%08x\n",
2151 crc32_le(0, ar->normal_mode_fw.board_data,
2152 ar->normal_mode_fw.board_len));
2153
2154 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2155
2156 mutex_unlock(&ar->conf_mutex);
2157
2158 kfree(buf);
2159 return ret_cnt;
2160 }
2161
2162 static const struct file_operations fops_fw_checksums = {
2163 .read = ath10k_debug_fw_checksums_read,
2164 .open = simple_open,
2165 .owner = THIS_MODULE,
2166 .llseek = default_llseek,
2167 };
2168
ath10k_sta_tid_stats_mask_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2169 static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file,
2170 char __user *user_buf,
2171 size_t count, loff_t *ppos)
2172 {
2173 struct ath10k *ar = file->private_data;
2174 char buf[32];
2175 size_t len;
2176
2177 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask);
2178 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2179 }
2180
ath10k_sta_tid_stats_mask_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2181 static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file,
2182 const char __user *user_buf,
2183 size_t count, loff_t *ppos)
2184 {
2185 struct ath10k *ar = file->private_data;
2186 char buf[32];
2187 ssize_t len;
2188 u32 mask;
2189
2190 len = min(count, sizeof(buf) - 1);
2191 if (copy_from_user(buf, user_buf, len))
2192 return -EFAULT;
2193
2194 buf[len] = '\0';
2195 if (kstrtoint(buf, 0, &mask))
2196 return -EINVAL;
2197
2198 ar->sta_tid_stats_mask = mask;
2199
2200 return len;
2201 }
2202
2203 static const struct file_operations fops_sta_tid_stats_mask = {
2204 .read = ath10k_sta_tid_stats_mask_read,
2205 .write = ath10k_sta_tid_stats_mask_write,
2206 .open = simple_open,
2207 .owner = THIS_MODULE,
2208 .llseek = default_llseek,
2209 };
2210
ath10k_debug_tpc_stats_final_request(struct ath10k * ar)2211 static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar)
2212 {
2213 int ret;
2214 unsigned long time_left;
2215
2216 lockdep_assert_held(&ar->conf_mutex);
2217
2218 reinit_completion(&ar->debug.tpc_complete);
2219
2220 ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM);
2221 if (ret) {
2222 ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret);
2223 return ret;
2224 }
2225
2226 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
2227 1 * HZ);
2228 if (time_left == 0)
2229 return -ETIMEDOUT;
2230
2231 return 0;
2232 }
2233
ath10k_tpc_stats_final_open(struct inode * inode,struct file * file)2234 static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file)
2235 {
2236 struct ath10k *ar = inode->i_private;
2237 void *buf;
2238 int ret;
2239
2240 mutex_lock(&ar->conf_mutex);
2241
2242 if (ar->state != ATH10K_STATE_ON) {
2243 ret = -ENETDOWN;
2244 goto err_unlock;
2245 }
2246
2247 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
2248 if (!buf) {
2249 ret = -ENOMEM;
2250 goto err_unlock;
2251 }
2252
2253 ret = ath10k_debug_tpc_stats_final_request(ar);
2254 if (ret) {
2255 ath10k_warn(ar, "failed to request tpc stats final: %d\n",
2256 ret);
2257 goto err_free;
2258 }
2259
2260 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
2261 file->private_data = buf;
2262
2263 mutex_unlock(&ar->conf_mutex);
2264 return 0;
2265
2266 err_free:
2267 vfree(buf);
2268
2269 err_unlock:
2270 mutex_unlock(&ar->conf_mutex);
2271 return ret;
2272 }
2273
ath10k_tpc_stats_final_release(struct inode * inode,struct file * file)2274 static int ath10k_tpc_stats_final_release(struct inode *inode,
2275 struct file *file)
2276 {
2277 vfree(file->private_data);
2278
2279 return 0;
2280 }
2281
ath10k_tpc_stats_final_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2282 static ssize_t ath10k_tpc_stats_final_read(struct file *file,
2283 char __user *user_buf,
2284 size_t count, loff_t *ppos)
2285 {
2286 const char *buf = file->private_data;
2287 unsigned int len = strlen(buf);
2288
2289 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2290 }
2291
2292 static const struct file_operations fops_tpc_stats_final = {
2293 .open = ath10k_tpc_stats_final_open,
2294 .release = ath10k_tpc_stats_final_release,
2295 .read = ath10k_tpc_stats_final_read,
2296 .owner = THIS_MODULE,
2297 .llseek = default_llseek,
2298 };
2299
ath10k_write_warm_hw_reset(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2300 static ssize_t ath10k_write_warm_hw_reset(struct file *file,
2301 const char __user *user_buf,
2302 size_t count, loff_t *ppos)
2303 {
2304 struct ath10k *ar = file->private_data;
2305 int ret;
2306 bool val;
2307
2308 if (kstrtobool_from_user(user_buf, count, &val))
2309 return -EFAULT;
2310
2311 if (!val)
2312 return -EINVAL;
2313
2314 mutex_lock(&ar->conf_mutex);
2315
2316 if (ar->state != ATH10K_STATE_ON) {
2317 ret = -ENETDOWN;
2318 goto exit;
2319 }
2320
2321 if (!(test_bit(WMI_SERVICE_RESET_CHIP, ar->wmi.svc_map)))
2322 ath10k_warn(ar, "wmi service for reset chip is not available\n");
2323
2324 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pdev_reset,
2325 WMI_RST_MODE_WARM_RESET);
2326
2327 if (ret) {
2328 ath10k_warn(ar, "failed to enable warm hw reset: %d\n", ret);
2329 goto exit;
2330 }
2331
2332 ret = count;
2333
2334 exit:
2335 mutex_unlock(&ar->conf_mutex);
2336 return ret;
2337 }
2338
2339 static const struct file_operations fops_warm_hw_reset = {
2340 .write = ath10k_write_warm_hw_reset,
2341 .open = simple_open,
2342 .owner = THIS_MODULE,
2343 .llseek = default_llseek,
2344 };
2345
ath10k_debug_create(struct ath10k * ar)2346 int ath10k_debug_create(struct ath10k *ar)
2347 {
2348 ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2349 if (!ar->debug.cal_data)
2350 return -ENOMEM;
2351
2352 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2353 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2354 INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2355 INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2356
2357 return 0;
2358 }
2359
ath10k_debug_destroy(struct ath10k * ar)2360 void ath10k_debug_destroy(struct ath10k *ar)
2361 {
2362 vfree(ar->debug.cal_data);
2363 ar->debug.cal_data = NULL;
2364
2365 ath10k_debug_fw_stats_reset(ar);
2366
2367 kfree(ar->debug.tpc_stats);
2368 }
2369
ath10k_debug_register(struct ath10k * ar)2370 int ath10k_debug_register(struct ath10k *ar)
2371 {
2372 ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2373 ar->hw->wiphy->debugfsdir);
2374 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2375 if (IS_ERR(ar->debug.debugfs_phy))
2376 return PTR_ERR(ar->debug.debugfs_phy);
2377
2378 return -ENOMEM;
2379 }
2380
2381 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2382 ath10k_debug_htt_stats_dwork);
2383
2384 init_completion(&ar->debug.tpc_complete);
2385 init_completion(&ar->debug.fw_stats_complete);
2386
2387 debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
2388 &fops_fw_stats);
2389
2390 debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
2391 &fops_fw_reset_stats);
2392
2393 debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
2394 &fops_wmi_services);
2395
2396 debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
2397 &fops_simulate_fw_crash);
2398
2399 debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
2400 &fops_reg_addr);
2401
2402 debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
2403 &fops_reg_value);
2404
2405 debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
2406 &fops_mem_value);
2407
2408 debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
2409 &fops_chip_id);
2410
2411 debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
2412 &fops_htt_stats_mask);
2413
2414 debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
2415 &fops_htt_max_amsdu_ampdu);
2416
2417 debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
2418 &fops_fw_dbglog);
2419
2420 if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
2421 ar->normal_mode_fw.fw_file.fw_features)) {
2422 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
2423 &fops_cal_data);
2424
2425 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
2426 &fops_nf_cal_period);
2427 }
2428
2429 debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
2430 &fops_ani_enable);
2431
2432 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2433 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
2434 ar, &fops_simulate_radar);
2435
2436 debugfs_create_bool("dfs_block_radar_events", 0200,
2437 ar->debug.debugfs_phy,
2438 &ar->dfs_block_radar_events);
2439
2440 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
2441 &fops_dfs_stats);
2442 }
2443
2444 debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
2445 &fops_pktlog_filter);
2446
2447 debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
2448 &fops_quiet_period);
2449
2450 debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
2451 &fops_tpc_stats);
2452
2453 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2454 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
2455 &fops_btcoex);
2456
2457 if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
2458 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
2459 &fops_peer_stats);
2460
2461 debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
2462 &fops_fw_checksums);
2463
2464 if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS))
2465 debugfs_create_file("sta_tid_stats_mask", 0600,
2466 ar->debug.debugfs_phy,
2467 ar, &fops_sta_tid_stats_mask);
2468
2469 if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map))
2470 debugfs_create_file("tpc_stats_final", 0400,
2471 ar->debug.debugfs_phy, ar,
2472 &fops_tpc_stats_final);
2473
2474 debugfs_create_file("warm_hw_reset", 0600, ar->debug.debugfs_phy, ar,
2475 &fops_warm_hw_reset);
2476
2477 return 0;
2478 }
2479
ath10k_debug_unregister(struct ath10k * ar)2480 void ath10k_debug_unregister(struct ath10k *ar)
2481 {
2482 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2483 }
2484
2485 #endif /* CONFIG_ATH10K_DEBUGFS */
2486
2487 #ifdef CONFIG_ATH10K_DEBUG
ath10k_dbg(struct ath10k * ar,enum ath10k_debug_mask mask,const char * fmt,...)2488 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2489 const char *fmt, ...)
2490 {
2491 struct va_format vaf;
2492 va_list args;
2493
2494 va_start(args, fmt);
2495
2496 vaf.fmt = fmt;
2497 vaf.va = &args;
2498
2499 if (ath10k_debug_mask & mask)
2500 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2501
2502 trace_ath10k_log_dbg(ar, mask, &vaf);
2503
2504 va_end(args);
2505 }
2506 EXPORT_SYMBOL(ath10k_dbg);
2507
ath10k_dbg_dump(struct ath10k * ar,enum ath10k_debug_mask mask,const char * msg,const char * prefix,const void * buf,size_t len)2508 void ath10k_dbg_dump(struct ath10k *ar,
2509 enum ath10k_debug_mask mask,
2510 const char *msg, const char *prefix,
2511 const void *buf, size_t len)
2512 {
2513 char linebuf[256];
2514 size_t linebuflen;
2515 const void *ptr;
2516
2517 if (ath10k_debug_mask & mask) {
2518 if (msg)
2519 ath10k_dbg(ar, mask, "%s\n", msg);
2520
2521 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2522 linebuflen = 0;
2523 linebuflen += scnprintf(linebuf + linebuflen,
2524 sizeof(linebuf) - linebuflen,
2525 "%s%08x: ",
2526 (prefix ? prefix : ""),
2527 (unsigned int)(ptr - buf));
2528 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2529 linebuf + linebuflen,
2530 sizeof(linebuf) - linebuflen, true);
2531 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2532 }
2533 }
2534
2535 /* tracing code doesn't like null strings :/ */
2536 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2537 buf, len);
2538 }
2539 EXPORT_SYMBOL(ath10k_dbg_dump);
2540
2541 #endif /* CONFIG_ATH10K_DEBUG */
2542
