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1// SPDX-License-Identifier: ISC
2/*
3 * Copyright (c) 2005-2011 Atheros Communications Inc.
4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
5 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
6 */
7
8#include <linux/module.h>
9#include <linux/debugfs.h>
10#include <linux/vmalloc.h>
11#include <linux/crc32.h>
12#include <linux/firmware.h>
13
14#include "core.h"
15#include "debug.h"
16#include "hif.h"
17#include "wmi-ops.h"
18
19/* ms */
20#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
21
22#define ATH10K_DEBUG_CAL_DATA_LEN 12064
23
24void ath10k_info(struct ath10k *ar, const char *fmt, ...)
25{
26 struct va_format vaf = {
27 .fmt = fmt,
28 };
29 va_list args;
30
31 va_start(args, fmt);
32 vaf.va = &args;
33 dev_info(ar->dev, "%pV", &vaf);
34 trace_ath10k_log_info(ar, &vaf);
35 va_end(args);
36}
37EXPORT_SYMBOL(ath10k_info);
38
39void ath10k_debug_print_hwfw_info(struct ath10k *ar)
40{
41 const struct firmware *firmware;
42 char fw_features[128] = {};
43 u32 crc = 0;
44
45 ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
46
47 ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
48 ar->hw_params.name,
49 ar->target_version,
50 ar->bus_param.chip_id,
51 ar->id.subsystem_vendor, ar->id.subsystem_device);
52
53 ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
54 IS_ENABLED(CONFIG_ATH10K_DEBUG),
55 IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
56 IS_ENABLED(CONFIG_ATH10K_TRACING),
57 IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
58 IS_ENABLED(CONFIG_NL80211_TESTMODE));
59
60 firmware = ar->normal_mode_fw.fw_file.firmware;
61 if (firmware)
62 crc = crc32_le(0, firmware->data, firmware->size);
63
64 ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
65 ar->hw->wiphy->fw_version,
66 ar->fw_api,
67 fw_features,
68 crc);
69}
70
71void ath10k_debug_print_board_info(struct ath10k *ar)
72{
73 char boardinfo[100];
74 const struct firmware *board;
75 u32 crc;
76
77 if (ar->id.bmi_ids_valid)
78 scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
79 ar->id.bmi_chip_id, ar->id.bmi_board_id);
80 else
81 scnprintf(boardinfo, sizeof(boardinfo), "N/A");
82
83 board = ar->normal_mode_fw.board;
84 if (!IS_ERR_OR_NULL(board))
85 crc = crc32_le(0, board->data, board->size);
86 else
87 crc = 0;
88
89 ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
90 ar->bd_api,
91 boardinfo,
92 crc);
93}
94
95void ath10k_debug_print_boot_info(struct ath10k *ar)
96{
97 ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
98 ar->htt.target_version_major,
99 ar->htt.target_version_minor,
100 ar->normal_mode_fw.fw_file.wmi_op_version,
101 ar->normal_mode_fw.fw_file.htt_op_version,
102 ath10k_cal_mode_str(ar->cal_mode),
103 ar->max_num_stations,
104 test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
105 !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
106}
107
108void ath10k_print_driver_info(struct ath10k *ar)
109{
110 ath10k_debug_print_hwfw_info(ar);
111 ath10k_debug_print_board_info(ar);
112 ath10k_debug_print_boot_info(ar);
113}
114EXPORT_SYMBOL(ath10k_print_driver_info);
115
116void ath10k_err(struct ath10k *ar, const char *fmt, ...)
117{
118 struct va_format vaf = {
119 .fmt = fmt,
120 };
121 va_list args;
122
123 va_start(args, fmt);
124 vaf.va = &args;
125 dev_err(ar->dev, "%pV", &vaf);
126 trace_ath10k_log_err(ar, &vaf);
127 va_end(args);
128}
129EXPORT_SYMBOL(ath10k_err);
130
131void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
132{
133 struct va_format vaf = {
134 .fmt = fmt,
135 };
136 va_list args;
137
138 va_start(args, fmt);
139 vaf.va = &args;
140 dev_warn_ratelimited(ar->dev, "%pV", &vaf);
141 trace_ath10k_log_warn(ar, &vaf);
142
143 va_end(args);
144}
145EXPORT_SYMBOL(ath10k_warn);
146
147#ifdef CONFIG_ATH10K_DEBUGFS
148
149static ssize_t ath10k_read_wmi_services(struct file *file,
150 char __user *user_buf,
151 size_t count, loff_t *ppos)
152{
153 struct ath10k *ar = file->private_data;
154 char *buf;
155 size_t len = 0, buf_len = 8192;
156 const char *name;
157 ssize_t ret_cnt;
158 bool enabled;
159 int i;
160
161 buf = kzalloc(buf_len, GFP_KERNEL);
162 if (!buf)
163 return -ENOMEM;
164
165 mutex_lock(&ar->conf_mutex);
166
167 spin_lock_bh(&ar->data_lock);
168 for (i = 0; i < WMI_SERVICE_MAX; i++) {
169 enabled = test_bit(i, ar->wmi.svc_map);
170 name = wmi_service_name(i);
171
172 if (!name) {
173 if (enabled)
174 len += scnprintf(buf + len, buf_len - len,
175 "%-40s %s (bit %d)\n",
176 "unknown", "enabled", i);
177
178 continue;
179 }
180
181 len += scnprintf(buf + len, buf_len - len,
182 "%-40s %s\n",
183 name, enabled ? "enabled" : "-");
184 }
185 spin_unlock_bh(&ar->data_lock);
186
187 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
188
189 mutex_unlock(&ar->conf_mutex);
190
191 kfree(buf);
192 return ret_cnt;
193}
194
195static const struct file_operations fops_wmi_services = {
196 .read = ath10k_read_wmi_services,
197 .open = simple_open,
198 .owner = THIS_MODULE,
199 .llseek = default_llseek,
200};
201
202static void ath10k_fw_stats_pdevs_free(struct list_head *head)
203{
204 struct ath10k_fw_stats_pdev *i, *tmp;
205
206 list_for_each_entry_safe(i, tmp, head, list) {
207 list_del(&i->list);
208 kfree(i);
209 }
210}
211
212static void ath10k_fw_stats_vdevs_free(struct list_head *head)
213{
214 struct ath10k_fw_stats_vdev *i, *tmp;
215
216 list_for_each_entry_safe(i, tmp, head, list) {
217 list_del(&i->list);
218 kfree(i);
219 }
220}
221
222static void ath10k_fw_stats_peers_free(struct list_head *head)
223{
224 struct ath10k_fw_stats_peer *i, *tmp;
225
226 list_for_each_entry_safe(i, tmp, head, list) {
227 list_del(&i->list);
228 kfree(i);
229 }
230}
231
232static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
233{
234 struct ath10k_fw_extd_stats_peer *i, *tmp;
235
236 list_for_each_entry_safe(i, tmp, head, list) {
237 list_del(&i->list);
238 kfree(i);
239 }
240}
241
242static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
243{
244 spin_lock_bh(&ar->data_lock);
245 ar->debug.fw_stats_done = false;
246 ar->debug.fw_stats.extended = false;
247 ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
248 ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
249 ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
250 ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
251 spin_unlock_bh(&ar->data_lock);
252}
253
254void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
255{
256 struct ath10k_fw_stats stats = {};
257 bool is_start, is_started, is_end;
258 size_t num_peers;
259 size_t num_vdevs;
260 int ret;
261
262 INIT_LIST_HEAD(&stats.pdevs);
263 INIT_LIST_HEAD(&stats.vdevs);
264 INIT_LIST_HEAD(&stats.peers);
265 INIT_LIST_HEAD(&stats.peers_extd);
266
267 spin_lock_bh(&ar->data_lock);
268 ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
269 if (ret) {
270 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
271 goto free;
272 }
273
274 /* Stat data may exceed htc-wmi buffer limit. In such case firmware
275 * splits the stats data and delivers it in a ping-pong fashion of
276 * request cmd-update event.
277 *
278 * However there is no explicit end-of-data. Instead start-of-data is
279 * used as an implicit one. This works as follows:
280 * a) discard stat update events until one with pdev stats is
281 * delivered - this skips session started at end of (b)
282 * b) consume stat update events until another one with pdev stats is
283 * delivered which is treated as end-of-data and is itself discarded
284 */
285 if (ath10k_peer_stats_enabled(ar))
286 ath10k_sta_update_rx_duration(ar, &stats);
287
288 if (ar->debug.fw_stats_done) {
289 if (!ath10k_peer_stats_enabled(ar))
290 ath10k_warn(ar, "received unsolicited stats update event\n");
291
292 goto free;
293 }
294
295 num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
296 num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
297 is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
298 !list_empty(&stats.pdevs));
299 is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
300 !list_empty(&stats.pdevs));
301
302 if (is_start)
303 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
304
305 if (is_end)
306 ar->debug.fw_stats_done = true;
307
308 if (stats.extended)
309 ar->debug.fw_stats.extended = true;
310
311 is_started = !list_empty(&ar->debug.fw_stats.pdevs);
312
313 if (is_started && !is_end) {
314 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
315 /* Although this is unlikely impose a sane limit to
316 * prevent firmware from DoS-ing the host.
317 */
318 ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
319 ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
320 ath10k_warn(ar, "dropping fw peer stats\n");
321 goto free;
322 }
323
324 if (num_vdevs >= BITS_PER_LONG) {
325 ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
326 ath10k_warn(ar, "dropping fw vdev stats\n");
327 goto free;
328 }
329
330 if (!list_empty(&stats.peers))
331 list_splice_tail_init(&stats.peers_extd,
332 &ar->debug.fw_stats.peers_extd);
333
334 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
335 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
336 }
337
338 complete(&ar->debug.fw_stats_complete);
339
340free:
341 /* In some cases lists have been spliced and cleared. Free up
342 * resources if that is not the case.
343 */
344 ath10k_fw_stats_pdevs_free(&stats.pdevs);
345 ath10k_fw_stats_vdevs_free(&stats.vdevs);
346 ath10k_fw_stats_peers_free(&stats.peers);
347 ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
348
349 spin_unlock_bh(&ar->data_lock);
350}
351
352static int ath10k_debug_fw_stats_request(struct ath10k *ar)
353{
354 unsigned long timeout, time_left;
355 int ret;
356
357 lockdep_assert_held(&ar->conf_mutex);
358
359 timeout = jiffies + msecs_to_jiffies(1 * HZ);
360
361 ath10k_debug_fw_stats_reset(ar);
362
363 for (;;) {
364 if (time_after(jiffies, timeout))
365 return -ETIMEDOUT;
366
367 reinit_completion(&ar->debug.fw_stats_complete);
368
369 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
370 if (ret) {
371 ath10k_warn(ar, "could not request stats (%d)\n", ret);
372 return ret;
373 }
374
375 time_left =
376 wait_for_completion_timeout(&ar->debug.fw_stats_complete,
377 1 * HZ);
378 if (!time_left)
379 return -ETIMEDOUT;
380
381 spin_lock_bh(&ar->data_lock);
382 if (ar->debug.fw_stats_done) {
383 spin_unlock_bh(&ar->data_lock);
384 break;
385 }
386 spin_unlock_bh(&ar->data_lock);
387 }
388
389 return 0;
390}
391
392static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
393{
394 struct ath10k *ar = inode->i_private;
395 void *buf = NULL;
396 int ret;
397
398 mutex_lock(&ar->conf_mutex);
399
400 if (ar->state != ATH10K_STATE_ON) {
401 ret = -ENETDOWN;
402 goto err_unlock;
403 }
404
405 buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
406 if (!buf) {
407 ret = -ENOMEM;
408 goto err_unlock;
409 }
410
411 ret = ath10k_debug_fw_stats_request(ar);
412 if (ret) {
413 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
414 goto err_free;
415 }
416
417 ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
418 if (ret) {
419 ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
420 goto err_free;
421 }
422
423 file->private_data = buf;
424
425 mutex_unlock(&ar->conf_mutex);
426 return 0;
427
428err_free:
429 vfree(buf);
430
431err_unlock:
432 mutex_unlock(&ar->conf_mutex);
433 return ret;
434}
435
436static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
437{
438 vfree(file->private_data);
439
440 return 0;
441}
442
443static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
444 size_t count, loff_t *ppos)
445{
446 const char *buf = file->private_data;
447 size_t len = strlen(buf);
448
449 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
450}
451
452static const struct file_operations fops_fw_stats = {
453 .open = ath10k_fw_stats_open,
454 .release = ath10k_fw_stats_release,
455 .read = ath10k_fw_stats_read,
456 .owner = THIS_MODULE,
457 .llseek = default_llseek,
458};
459
460static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
461 char __user *user_buf,
462 size_t count, loff_t *ppos)
463{
464 struct ath10k *ar = file->private_data;
465 int ret;
466 size_t len = 0, buf_len = 500;
467 char *buf;
468
469 buf = kmalloc(buf_len, GFP_KERNEL);
470 if (!buf)
471 return -ENOMEM;
472
473 spin_lock_bh(&ar->data_lock);
474
475 len += scnprintf(buf + len, buf_len - len,
476 "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
477 len += scnprintf(buf + len, buf_len - len,
478 "fw_warm_reset_counter\t\t%d\n",
479 ar->stats.fw_warm_reset_counter);
480 len += scnprintf(buf + len, buf_len - len,
481 "fw_cold_reset_counter\t\t%d\n",
482 ar->stats.fw_cold_reset_counter);
483
484 spin_unlock_bh(&ar->data_lock);
485
486 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
487
488 kfree(buf);
489
490 return ret;
491}
492
493static const struct file_operations fops_fw_reset_stats = {
494 .open = simple_open,
495 .read = ath10k_debug_fw_reset_stats_read,
496 .owner = THIS_MODULE,
497 .llseek = default_llseek,
498};
499
500/* This is a clean assert crash in firmware. */
501static int ath10k_debug_fw_assert(struct ath10k *ar)
502{
503 struct wmi_vdev_install_key_cmd *cmd;
504 struct sk_buff *skb;
505
506 skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
507 if (!skb)
508 return -ENOMEM;
509
510 cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
511 memset(cmd, 0, sizeof(*cmd));
512
513 /* big enough number so that firmware asserts */
514 cmd->vdev_id = __cpu_to_le32(0x7ffe);
515
516 return ath10k_wmi_cmd_send(ar, skb,
517 ar->wmi.cmd->vdev_install_key_cmdid);
518}
519
520static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
521 char __user *user_buf,
522 size_t count, loff_t *ppos)
523{
524 const char buf[] =
525 "To simulate firmware crash write one of the keywords to this file:\n"
526 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
527 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
528 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
529 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
530
531 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
532}
533
534/* Simulate firmware crash:
535 * 'soft': Call wmi command causing firmware hang. This firmware hang is
536 * recoverable by warm firmware reset.
537 * 'hard': Force firmware crash by setting any vdev parameter for not allowed
538 * vdev id. This is hard firmware crash because it is recoverable only by cold
539 * firmware reset.
540 */
541static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
542 const char __user *user_buf,
543 size_t count, loff_t *ppos)
544{
545 struct ath10k *ar = file->private_data;
546 char buf[32] = {0};
547 ssize_t rc;
548 int ret;
549
550 /* filter partial writes and invalid commands */
551 if (*ppos != 0 || count >= sizeof(buf) || count == 0)
552 return -EINVAL;
553
554 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
555 if (rc < 0)
556 return rc;
557
558 /* drop the possible '\n' from the end */
559 if (buf[*ppos - 1] == '\n')
560 buf[*ppos - 1] = '\0';
561
562 mutex_lock(&ar->conf_mutex);
563
564 if (ar->state != ATH10K_STATE_ON &&
565 ar->state != ATH10K_STATE_RESTARTED) {
566 ret = -ENETDOWN;
567 goto exit;
568 }
569
570 if (!strcmp(buf, "soft")) {
571 ath10k_info(ar, "simulating soft firmware crash\n");
572 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
573 } else if (!strcmp(buf, "hard")) {
574 ath10k_info(ar, "simulating hard firmware crash\n");
575 /* 0x7fff is vdev id, and it is always out of range for all
576 * firmware variants in order to force a firmware crash.
577 */
578 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
579 ar->wmi.vdev_param->rts_threshold,
580 0);
581 } else if (!strcmp(buf, "assert")) {
582 ath10k_info(ar, "simulating firmware assert crash\n");
583 ret = ath10k_debug_fw_assert(ar);
584 } else if (!strcmp(buf, "hw-restart")) {
585 ath10k_info(ar, "user requested hw restart\n");
586 queue_work(ar->workqueue, &ar->restart_work);
587 ret = 0;
588 } else {
589 ret = -EINVAL;
590 goto exit;
591 }
592
593 if (ret) {
594 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
595 goto exit;
596 }
597
598 ret = count;
599
600exit:
601 mutex_unlock(&ar->conf_mutex);
602 return ret;
603}
604
605static const struct file_operations fops_simulate_fw_crash = {
606 .read = ath10k_read_simulate_fw_crash,
607 .write = ath10k_write_simulate_fw_crash,
608 .open = simple_open,
609 .owner = THIS_MODULE,
610 .llseek = default_llseek,
611};
612
613static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
614 size_t count, loff_t *ppos)
615{
616 struct ath10k *ar = file->private_data;
617 size_t len;
618 char buf[50];
619
620 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->bus_param.chip_id);
621
622 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
623}
624
625static const struct file_operations fops_chip_id = {
626 .read = ath10k_read_chip_id,
627 .open = simple_open,
628 .owner = THIS_MODULE,
629 .llseek = default_llseek,
630};
631
632static ssize_t ath10k_reg_addr_read(struct file *file,
633 char __user *user_buf,
634 size_t count, loff_t *ppos)
635{
636 struct ath10k *ar = file->private_data;
637 u8 buf[32];
638 size_t len = 0;
639 u32 reg_addr;
640
641 mutex_lock(&ar->conf_mutex);
642 reg_addr = ar->debug.reg_addr;
643 mutex_unlock(&ar->conf_mutex);
644
645 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
646
647 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
648}
649
650static ssize_t ath10k_reg_addr_write(struct file *file,
651 const char __user *user_buf,
652 size_t count, loff_t *ppos)
653{
654 struct ath10k *ar = file->private_data;
655 u32 reg_addr;
656 int ret;
657
658 ret = kstrtou32_from_user(user_buf, count, 0, ®_addr);
659 if (ret)
660 return ret;
661
662 if (!IS_ALIGNED(reg_addr, 4))
663 return -EFAULT;
664
665 mutex_lock(&ar->conf_mutex);
666 ar->debug.reg_addr = reg_addr;
667 mutex_unlock(&ar->conf_mutex);
668
669 return count;
670}
671
672static const struct file_operations fops_reg_addr = {
673 .read = ath10k_reg_addr_read,
674 .write = ath10k_reg_addr_write,
675 .open = simple_open,
676 .owner = THIS_MODULE,
677 .llseek = default_llseek,
678};
679
680static ssize_t ath10k_reg_value_read(struct file *file,
681 char __user *user_buf,
682 size_t count, loff_t *ppos)
683{
684 struct ath10k *ar = file->private_data;
685 u8 buf[48];
686 size_t len;
687 u32 reg_addr, reg_val;
688 int ret;
689
690 mutex_lock(&ar->conf_mutex);
691
692 if (ar->state != ATH10K_STATE_ON &&
693 ar->state != ATH10K_STATE_UTF) {
694 ret = -ENETDOWN;
695 goto exit;
696 }
697
698 reg_addr = ar->debug.reg_addr;
699
700 reg_val = ath10k_hif_read32(ar, reg_addr);
701 len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
702
703 ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
704
705exit:
706 mutex_unlock(&ar->conf_mutex);
707
708 return ret;
709}
710
711static ssize_t ath10k_reg_value_write(struct file *file,
712 const char __user *user_buf,
713 size_t count, loff_t *ppos)
714{
715 struct ath10k *ar = file->private_data;
716 u32 reg_addr, reg_val;
717 int ret;
718
719 mutex_lock(&ar->conf_mutex);
720
721 if (ar->state != ATH10K_STATE_ON &&
722 ar->state != ATH10K_STATE_UTF) {
723 ret = -ENETDOWN;
724 goto exit;
725 }
726
727 reg_addr = ar->debug.reg_addr;
728
729 ret = kstrtou32_from_user(user_buf, count, 0, ®_val);
730 if (ret)
731 goto exit;
732
733 ath10k_hif_write32(ar, reg_addr, reg_val);
734
735 ret = count;
736
737exit:
738 mutex_unlock(&ar->conf_mutex);
739
740 return ret;
741}
742
743static const struct file_operations fops_reg_value = {
744 .read = ath10k_reg_value_read,
745 .write = ath10k_reg_value_write,
746 .open = simple_open,
747 .owner = THIS_MODULE,
748 .llseek = default_llseek,
749};
750
751static ssize_t ath10k_mem_value_read(struct file *file,
752 char __user *user_buf,
753 size_t count, loff_t *ppos)
754{
755 struct ath10k *ar = file->private_data;
756 u8 *buf;
757 int ret;
758
759 if (*ppos < 0)
760 return -EINVAL;
761
762 if (!count)
763 return 0;
764
765 mutex_lock(&ar->conf_mutex);
766
767 buf = vmalloc(count);
768 if (!buf) {
769 ret = -ENOMEM;
770 goto exit;
771 }
772
773 if (ar->state != ATH10K_STATE_ON &&
774 ar->state != ATH10K_STATE_UTF) {
775 ret = -ENETDOWN;
776 goto exit;
777 }
778
779 ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
780 if (ret) {
781 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
782 (u32)(*ppos), ret);
783 goto exit;
784 }
785
786 ret = copy_to_user(user_buf, buf, count);
787 if (ret) {
788 ret = -EFAULT;
789 goto exit;
790 }
791
792 count -= ret;
793 *ppos += count;
794 ret = count;
795
796exit:
797 vfree(buf);
798 mutex_unlock(&ar->conf_mutex);
799
800 return ret;
801}
802
803static ssize_t ath10k_mem_value_write(struct file *file,
804 const char __user *user_buf,
805 size_t count, loff_t *ppos)
806{
807 struct ath10k *ar = file->private_data;
808 u8 *buf;
809 int ret;
810
811 if (*ppos < 0)
812 return -EINVAL;
813
814 if (!count)
815 return 0;
816
817 mutex_lock(&ar->conf_mutex);
818
819 buf = vmalloc(count);
820 if (!buf) {
821 ret = -ENOMEM;
822 goto exit;
823 }
824
825 if (ar->state != ATH10K_STATE_ON &&
826 ar->state != ATH10K_STATE_UTF) {
827 ret = -ENETDOWN;
828 goto exit;
829 }
830
831 ret = copy_from_user(buf, user_buf, count);
832 if (ret) {
833 ret = -EFAULT;
834 goto exit;
835 }
836
837 ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
838 if (ret) {
839 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
840 (u32)(*ppos), ret);
841 goto exit;
842 }
843
844 *ppos += count;
845 ret = count;
846
847exit:
848 vfree(buf);
849 mutex_unlock(&ar->conf_mutex);
850
851 return ret;
852}
853
854static const struct file_operations fops_mem_value = {
855 .read = ath10k_mem_value_read,
856 .write = ath10k_mem_value_write,
857 .open = simple_open,
858 .owner = THIS_MODULE,
859 .llseek = default_llseek,
860};
861
862static int ath10k_debug_htt_stats_req(struct ath10k *ar)
863{
864 u64 cookie;
865 int ret;
866
867 lockdep_assert_held(&ar->conf_mutex);
868
869 if (ar->debug.htt_stats_mask == 0)
870 /* htt stats are disabled */
871 return 0;
872
873 if (ar->state != ATH10K_STATE_ON)
874 return 0;
875
876 cookie = get_jiffies_64();
877
878 ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
879 ar->debug.reset_htt_stats, cookie);
880 if (ret) {
881 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
882 return ret;
883 }
884
885 queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
886 msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
887
888 return 0;
889}
890
891static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
892{
893 struct ath10k *ar = container_of(work, struct ath10k,
894 debug.htt_stats_dwork.work);
895
896 mutex_lock(&ar->conf_mutex);
897
898 ath10k_debug_htt_stats_req(ar);
899
900 mutex_unlock(&ar->conf_mutex);
901}
902
903static ssize_t ath10k_read_htt_stats_mask(struct file *file,
904 char __user *user_buf,
905 size_t count, loff_t *ppos)
906{
907 struct ath10k *ar = file->private_data;
908 char buf[32];
909 size_t len;
910
911 len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
912
913 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
914}
915
916static ssize_t ath10k_write_htt_stats_mask(struct file *file,
917 const char __user *user_buf,
918 size_t count, loff_t *ppos)
919{
920 struct ath10k *ar = file->private_data;
921 unsigned long mask;
922 int ret;
923
924 ret = kstrtoul_from_user(user_buf, count, 0, &mask);
925 if (ret)
926 return ret;
927
928 /* max 17 bit masks (for now) */
929 if (mask > HTT_STATS_BIT_MASK)
930 return -E2BIG;
931
932 mutex_lock(&ar->conf_mutex);
933
934 ar->debug.htt_stats_mask = mask;
935
936 ret = ath10k_debug_htt_stats_req(ar);
937 if (ret)
938 goto out;
939
940 ret = count;
941
942out:
943 mutex_unlock(&ar->conf_mutex);
944
945 return ret;
946}
947
948static const struct file_operations fops_htt_stats_mask = {
949 .read = ath10k_read_htt_stats_mask,
950 .write = ath10k_write_htt_stats_mask,
951 .open = simple_open,
952 .owner = THIS_MODULE,
953 .llseek = default_llseek,
954};
955
956static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
957 char __user *user_buf,
958 size_t count, loff_t *ppos)
959{
960 struct ath10k *ar = file->private_data;
961 char buf[64];
962 u8 amsdu, ampdu;
963 size_t len;
964
965 mutex_lock(&ar->conf_mutex);
966
967 amsdu = ar->htt.max_num_amsdu;
968 ampdu = ar->htt.max_num_ampdu;
969 mutex_unlock(&ar->conf_mutex);
970
971 len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
972
973 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
974}
975
976static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
977 const char __user *user_buf,
978 size_t count, loff_t *ppos)
979{
980 struct ath10k *ar = file->private_data;
981 int res;
982 char buf[64] = {0};
983 unsigned int amsdu, ampdu;
984
985 res = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
986 user_buf, count);
987 if (res <= 0)
988 return res;
989
990 res = sscanf(buf, "%u %u", &amsdu, &du);
991
992 if (res != 2)
993 return -EINVAL;
994
995 mutex_lock(&ar->conf_mutex);
996
997 res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
998 if (res)
999 goto out;
1000
1001 res = count;
1002 ar->htt.max_num_amsdu = amsdu;
1003 ar->htt.max_num_ampdu = ampdu;
1004
1005out:
1006 mutex_unlock(&ar->conf_mutex);
1007 return res;
1008}
1009
1010static const struct file_operations fops_htt_max_amsdu_ampdu = {
1011 .read = ath10k_read_htt_max_amsdu_ampdu,
1012 .write = ath10k_write_htt_max_amsdu_ampdu,
1013 .open = simple_open,
1014 .owner = THIS_MODULE,
1015 .llseek = default_llseek,
1016};
1017
1018static ssize_t ath10k_read_fw_dbglog(struct file *file,
1019 char __user *user_buf,
1020 size_t count, loff_t *ppos)
1021{
1022 struct ath10k *ar = file->private_data;
1023 size_t len;
1024 char buf[96];
1025
1026 len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
1027 ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1028
1029 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1030}
1031
1032static ssize_t ath10k_write_fw_dbglog(struct file *file,
1033 const char __user *user_buf,
1034 size_t count, loff_t *ppos)
1035{
1036 struct ath10k *ar = file->private_data;
1037 int ret;
1038 char buf[96] = {0};
1039 unsigned int log_level;
1040 u64 mask;
1041
1042 ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos,
1043 user_buf, count);
1044 if (ret <= 0)
1045 return ret;
1046
1047 ret = sscanf(buf, "%llx %u", &mask, &log_level);
1048
1049 if (!ret)
1050 return -EINVAL;
1051
1052 if (ret == 1)
1053 /* default if user did not specify */
1054 log_level = ATH10K_DBGLOG_LEVEL_WARN;
1055
1056 mutex_lock(&ar->conf_mutex);
1057
1058 ar->debug.fw_dbglog_mask = mask;
1059 ar->debug.fw_dbglog_level = log_level;
1060
1061 if (ar->state == ATH10K_STATE_ON) {
1062 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1063 ar->debug.fw_dbglog_level);
1064 if (ret) {
1065 ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
1066 ret);
1067 goto exit;
1068 }
1069 }
1070
1071 ret = count;
1072
1073exit:
1074 mutex_unlock(&ar->conf_mutex);
1075
1076 return ret;
1077}
1078
1079/* TODO: Would be nice to always support ethtool stats, would need to
1080 * move the stats storage out of ath10k_debug, or always have ath10k_debug
1081 * struct available..
1082 */
1083
1084/* This generally cooresponds to the debugfs fw_stats file */
1085static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1086 "tx_pkts_nic",
1087 "tx_bytes_nic",
1088 "rx_pkts_nic",
1089 "rx_bytes_nic",
1090 "d_noise_floor",
1091 "d_cycle_count",
1092 "d_phy_error",
1093 "d_rts_bad",
1094 "d_rts_good",
1095 "d_tx_power", /* in .5 dbM I think */
1096 "d_rx_crc_err", /* fcs_bad */
1097 "d_no_beacon",
1098 "d_tx_mpdus_queued",
1099 "d_tx_msdu_queued",
1100 "d_tx_msdu_dropped",
1101 "d_local_enqued",
1102 "d_local_freed",
1103 "d_tx_ppdu_hw_queued",
1104 "d_tx_ppdu_reaped",
1105 "d_tx_fifo_underrun",
1106 "d_tx_ppdu_abort",
1107 "d_tx_mpdu_requed",
1108 "d_tx_excessive_retries",
1109 "d_tx_hw_rate",
1110 "d_tx_dropped_sw_retries",
1111 "d_tx_illegal_rate",
1112 "d_tx_continuous_xretries",
1113 "d_tx_timeout",
1114 "d_tx_mpdu_txop_limit",
1115 "d_pdev_resets",
1116 "d_rx_mid_ppdu_route_change",
1117 "d_rx_status",
1118 "d_rx_extra_frags_ring0",
1119 "d_rx_extra_frags_ring1",
1120 "d_rx_extra_frags_ring2",
1121 "d_rx_extra_frags_ring3",
1122 "d_rx_msdu_htt",
1123 "d_rx_mpdu_htt",
1124 "d_rx_msdu_stack",
1125 "d_rx_mpdu_stack",
1126 "d_rx_phy_err",
1127 "d_rx_phy_err_drops",
1128 "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1129 "d_fw_crash_count",
1130 "d_fw_warm_reset_count",
1131 "d_fw_cold_reset_count",
1132};
1133
1134#define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1135
1136void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1137 struct ieee80211_vif *vif,
1138 u32 sset, u8 *data)
1139{
1140 if (sset == ETH_SS_STATS)
1141 memcpy(data, *ath10k_gstrings_stats,
1142 sizeof(ath10k_gstrings_stats));
1143}
1144
1145int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1146 struct ieee80211_vif *vif, int sset)
1147{
1148 if (sset == ETH_SS_STATS)
1149 return ATH10K_SSTATS_LEN;
1150
1151 return 0;
1152}
1153
1154void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1155 struct ieee80211_vif *vif,
1156 struct ethtool_stats *stats, u64 *data)
1157{
1158 struct ath10k *ar = hw->priv;
1159 static const struct ath10k_fw_stats_pdev zero_stats = {};
1160 const struct ath10k_fw_stats_pdev *pdev_stats;
1161 int i = 0, ret;
1162
1163 mutex_lock(&ar->conf_mutex);
1164
1165 if (ar->state == ATH10K_STATE_ON) {
1166 ret = ath10k_debug_fw_stats_request(ar);
1167 if (ret) {
1168 /* just print a warning and try to use older results */
1169 ath10k_warn(ar,
1170 "failed to get fw stats for ethtool: %d\n",
1171 ret);
1172 }
1173 }
1174
1175 pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1176 struct ath10k_fw_stats_pdev,
1177 list);
1178 if (!pdev_stats) {
1179 /* no results available so just return zeroes */
1180 pdev_stats = &zero_stats;
1181 }
1182
1183 spin_lock_bh(&ar->data_lock);
1184
1185 data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1186 data[i++] = 0; /* tx bytes */
1187 data[i++] = pdev_stats->htt_mpdus;
1188 data[i++] = 0; /* rx bytes */
1189 data[i++] = pdev_stats->ch_noise_floor;
1190 data[i++] = pdev_stats->cycle_count;
1191 data[i++] = pdev_stats->phy_err_count;
1192 data[i++] = pdev_stats->rts_bad;
1193 data[i++] = pdev_stats->rts_good;
1194 data[i++] = pdev_stats->chan_tx_power;
1195 data[i++] = pdev_stats->fcs_bad;
1196 data[i++] = pdev_stats->no_beacons;
1197 data[i++] = pdev_stats->mpdu_enqued;
1198 data[i++] = pdev_stats->msdu_enqued;
1199 data[i++] = pdev_stats->wmm_drop;
1200 data[i++] = pdev_stats->local_enqued;
1201 data[i++] = pdev_stats->local_freed;
1202 data[i++] = pdev_stats->hw_queued;
1203 data[i++] = pdev_stats->hw_reaped;
1204 data[i++] = pdev_stats->underrun;
1205 data[i++] = pdev_stats->tx_abort;
1206 data[i++] = pdev_stats->mpdus_requed;
1207 data[i++] = pdev_stats->tx_ko;
1208 data[i++] = pdev_stats->data_rc;
1209 data[i++] = pdev_stats->sw_retry_failure;
1210 data[i++] = pdev_stats->illgl_rate_phy_err;
1211 data[i++] = pdev_stats->pdev_cont_xretry;
1212 data[i++] = pdev_stats->pdev_tx_timeout;
1213 data[i++] = pdev_stats->txop_ovf;
1214 data[i++] = pdev_stats->pdev_resets;
1215 data[i++] = pdev_stats->mid_ppdu_route_change;
1216 data[i++] = pdev_stats->status_rcvd;
1217 data[i++] = pdev_stats->r0_frags;
1218 data[i++] = pdev_stats->r1_frags;
1219 data[i++] = pdev_stats->r2_frags;
1220 data[i++] = pdev_stats->r3_frags;
1221 data[i++] = pdev_stats->htt_msdus;
1222 data[i++] = pdev_stats->htt_mpdus;
1223 data[i++] = pdev_stats->loc_msdus;
1224 data[i++] = pdev_stats->loc_mpdus;
1225 data[i++] = pdev_stats->phy_errs;
1226 data[i++] = pdev_stats->phy_err_drop;
1227 data[i++] = pdev_stats->mpdu_errs;
1228 data[i++] = ar->stats.fw_crash_counter;
1229 data[i++] = ar->stats.fw_warm_reset_counter;
1230 data[i++] = ar->stats.fw_cold_reset_counter;
1231
1232 spin_unlock_bh(&ar->data_lock);
1233
1234 mutex_unlock(&ar->conf_mutex);
1235
1236 WARN_ON(i != ATH10K_SSTATS_LEN);
1237}
1238
1239static const struct file_operations fops_fw_dbglog = {
1240 .read = ath10k_read_fw_dbglog,
1241 .write = ath10k_write_fw_dbglog,
1242 .open = simple_open,
1243 .owner = THIS_MODULE,
1244 .llseek = default_llseek,
1245};
1246
1247static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
1248{
1249 u32 hi_addr;
1250 __le32 addr;
1251 int ret;
1252
1253 lockdep_assert_held(&ar->conf_mutex);
1254
1255 if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
1256 return -EINVAL;
1257
1258 if (ar->hw_params.cal_data_len == 0)
1259 return -EOPNOTSUPP;
1260
1261 hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1262
1263 ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1264 if (ret) {
1265 ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
1266 ret);
1267 return ret;
1268 }
1269
1270 ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
1271 ar->hw_params.cal_data_len);
1272 if (ret) {
1273 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1274 return ret;
1275 }
1276
1277 return 0;
1278}
1279
1280static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1281{
1282 struct ath10k *ar = inode->i_private;
1283
1284 mutex_lock(&ar->conf_mutex);
1285
1286 if (ar->state == ATH10K_STATE_ON ||
1287 ar->state == ATH10K_STATE_UTF) {
1288 ath10k_debug_cal_data_fetch(ar);
1289 }
1290
1291 file->private_data = ar;
1292 mutex_unlock(&ar->conf_mutex);
1293
1294 return 0;
1295}
1296
1297static ssize_t ath10k_debug_cal_data_read(struct file *file,
1298 char __user *user_buf,
1299 size_t count, loff_t *ppos)
1300{
1301 struct ath10k *ar = file->private_data;
1302
1303 mutex_lock(&ar->conf_mutex);
1304
1305 count = simple_read_from_buffer(user_buf, count, ppos,
1306 ar->debug.cal_data,
1307 ar->hw_params.cal_data_len);
1308
1309 mutex_unlock(&ar->conf_mutex);
1310
1311 return count;
1312}
1313
1314static ssize_t ath10k_write_ani_enable(struct file *file,
1315 const char __user *user_buf,
1316 size_t count, loff_t *ppos)
1317{
1318 struct ath10k *ar = file->private_data;
1319 int ret;
1320 u8 enable;
1321
1322 if (kstrtou8_from_user(user_buf, count, 0, &enable))
1323 return -EINVAL;
1324
1325 mutex_lock(&ar->conf_mutex);
1326
1327 if (ar->ani_enabled == enable) {
1328 ret = count;
1329 goto exit;
1330 }
1331
1332 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1333 enable);
1334 if (ret) {
1335 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1336 goto exit;
1337 }
1338 ar->ani_enabled = enable;
1339
1340 ret = count;
1341
1342exit:
1343 mutex_unlock(&ar->conf_mutex);
1344
1345 return ret;
1346}
1347
1348static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1349 size_t count, loff_t *ppos)
1350{
1351 struct ath10k *ar = file->private_data;
1352 size_t len;
1353 char buf[32];
1354
1355 len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled);
1356
1357 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1358}
1359
1360static const struct file_operations fops_ani_enable = {
1361 .read = ath10k_read_ani_enable,
1362 .write = ath10k_write_ani_enable,
1363 .open = simple_open,
1364 .owner = THIS_MODULE,
1365 .llseek = default_llseek,
1366};
1367
1368static const struct file_operations fops_cal_data = {
1369 .open = ath10k_debug_cal_data_open,
1370 .read = ath10k_debug_cal_data_read,
1371 .owner = THIS_MODULE,
1372 .llseek = default_llseek,
1373};
1374
1375static ssize_t ath10k_read_nf_cal_period(struct file *file,
1376 char __user *user_buf,
1377 size_t count, loff_t *ppos)
1378{
1379 struct ath10k *ar = file->private_data;
1380 size_t len;
1381 char buf[32];
1382
1383 len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period);
1384
1385 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1386}
1387
1388static ssize_t ath10k_write_nf_cal_period(struct file *file,
1389 const char __user *user_buf,
1390 size_t count, loff_t *ppos)
1391{
1392 struct ath10k *ar = file->private_data;
1393 unsigned long period;
1394 int ret;
1395
1396 ret = kstrtoul_from_user(user_buf, count, 0, &period);
1397 if (ret)
1398 return ret;
1399
1400 if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1401 return -EINVAL;
1402
1403 /* there's no way to switch back to the firmware default */
1404 if (period == 0)
1405 return -EINVAL;
1406
1407 mutex_lock(&ar->conf_mutex);
1408
1409 ar->debug.nf_cal_period = period;
1410
1411 if (ar->state != ATH10K_STATE_ON) {
1412 /* firmware is not running, nothing else to do */
1413 ret = count;
1414 goto exit;
1415 }
1416
1417 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1418 ar->debug.nf_cal_period);
1419 if (ret) {
1420 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1421 ret);
1422 goto exit;
1423 }
1424
1425 ret = count;
1426
1427exit:
1428 mutex_unlock(&ar->conf_mutex);
1429
1430 return ret;
1431}
1432
1433static const struct file_operations fops_nf_cal_period = {
1434 .read = ath10k_read_nf_cal_period,
1435 .write = ath10k_write_nf_cal_period,
1436 .open = simple_open,
1437 .owner = THIS_MODULE,
1438 .llseek = default_llseek,
1439};
1440
1441#define ATH10K_TPC_CONFIG_BUF_SIZE (1024 * 1024)
1442
1443static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
1444{
1445 int ret;
1446 unsigned long time_left;
1447
1448 lockdep_assert_held(&ar->conf_mutex);
1449
1450 reinit_completion(&ar->debug.tpc_complete);
1451
1452 ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
1453 if (ret) {
1454 ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
1455 return ret;
1456 }
1457
1458 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1459 1 * HZ);
1460 if (time_left == 0)
1461 return -ETIMEDOUT;
1462
1463 return 0;
1464}
1465
1466void ath10k_debug_tpc_stats_process(struct ath10k *ar,
1467 struct ath10k_tpc_stats *tpc_stats)
1468{
1469 spin_lock_bh(&ar->data_lock);
1470
1471 kfree(ar->debug.tpc_stats);
1472 ar->debug.tpc_stats = tpc_stats;
1473 complete(&ar->debug.tpc_complete);
1474
1475 spin_unlock_bh(&ar->data_lock);
1476}
1477
1478void
1479ath10k_debug_tpc_stats_final_process(struct ath10k *ar,
1480 struct ath10k_tpc_stats_final *tpc_stats)
1481{
1482 spin_lock_bh(&ar->data_lock);
1483
1484 kfree(ar->debug.tpc_stats_final);
1485 ar->debug.tpc_stats_final = tpc_stats;
1486 complete(&ar->debug.tpc_complete);
1487
1488 spin_unlock_bh(&ar->data_lock);
1489}
1490
1491static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
1492 unsigned int j, char *buf, size_t *len)
1493{
1494 int i;
1495 size_t buf_len;
1496 static const char table_str[][5] = { "CDD",
1497 "STBC",
1498 "TXBF" };
1499 static const char pream_str[][6] = { "CCK",
1500 "OFDM",
1501 "HT20",
1502 "HT40",
1503 "VHT20",
1504 "VHT40",
1505 "VHT80",
1506 "HTCUP" };
1507
1508 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1509 *len += scnprintf(buf + *len, buf_len - *len,
1510 "********************************\n");
1511 *len += scnprintf(buf + *len, buf_len - *len,
1512 "******************* %s POWER TABLE ****************\n",
1513 table_str[j]);
1514 *len += scnprintf(buf + *len, buf_len - *len,
1515 "********************************\n");
1516 *len += scnprintf(buf + *len, buf_len - *len,
1517 "No. Preamble Rate_code ");
1518
1519 for (i = 0; i < WMI_TPC_TX_N_CHAIN; i++)
1520 *len += scnprintf(buf + *len, buf_len - *len,
1521 "tpc_value%d ", i);
1522
1523 *len += scnprintf(buf + *len, buf_len - *len, "\n");
1524
1525 for (i = 0; i < tpc_stats->rate_max; i++) {
1526 *len += scnprintf(buf + *len, buf_len - *len,
1527 "%8d %s 0x%2x %s\n", i,
1528 pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1529 tpc_stats->tpc_table[j].rate_code[i],
1530 tpc_stats->tpc_table[j].tpc_value[i]);
1531 }
1532
1533 *len += scnprintf(buf + *len, buf_len - *len,
1534 "***********************************\n");
1535}
1536
1537static void ath10k_tpc_stats_fill(struct ath10k *ar,
1538 struct ath10k_tpc_stats *tpc_stats,
1539 char *buf)
1540{
1541 int j;
1542 size_t len, buf_len;
1543
1544 len = 0;
1545 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1546
1547 spin_lock_bh(&ar->data_lock);
1548
1549 if (!tpc_stats) {
1550 ath10k_warn(ar, "failed to get tpc stats\n");
1551 goto unlock;
1552 }
1553
1554 len += scnprintf(buf + len, buf_len - len, "\n");
1555 len += scnprintf(buf + len, buf_len - len,
1556 "*************************************\n");
1557 len += scnprintf(buf + len, buf_len - len,
1558 "TPC config for channel %4d mode %d\n",
1559 tpc_stats->chan_freq,
1560 tpc_stats->phy_mode);
1561 len += scnprintf(buf + len, buf_len - len,
1562 "*************************************\n");
1563 len += scnprintf(buf + len, buf_len - len,
1564 "CTL = 0x%2x Reg. Domain = %2d\n",
1565 tpc_stats->ctl,
1566 tpc_stats->reg_domain);
1567 len += scnprintf(buf + len, buf_len - len,
1568 "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n",
1569 tpc_stats->twice_antenna_gain,
1570 tpc_stats->twice_antenna_reduction);
1571 len += scnprintf(buf + len, buf_len - len,
1572 "Power Limit = %2d Reg. Max Power = %2d\n",
1573 tpc_stats->power_limit,
1574 tpc_stats->twice_max_rd_power / 2);
1575 len += scnprintf(buf + len, buf_len - len,
1576 "Num tx chains = %2d Num supported rates = %2d\n",
1577 tpc_stats->num_tx_chain,
1578 tpc_stats->rate_max);
1579
1580 for (j = 0; j < WMI_TPC_FLAG; j++) {
1581 switch (j) {
1582 case WMI_TPC_TABLE_TYPE_CDD:
1583 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1584 len += scnprintf(buf + len, buf_len - len,
1585 "CDD not supported\n");
1586 break;
1587 }
1588
1589 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1590 break;
1591 case WMI_TPC_TABLE_TYPE_STBC:
1592 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1593 len += scnprintf(buf + len, buf_len - len,
1594 "STBC not supported\n");
1595 break;
1596 }
1597
1598 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1599 break;
1600 case WMI_TPC_TABLE_TYPE_TXBF:
1601 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1602 len += scnprintf(buf + len, buf_len - len,
1603 "TXBF not supported\n***************************\n");
1604 break;
1605 }
1606
1607 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1608 break;
1609 default:
1610 len += scnprintf(buf + len, buf_len - len,
1611 "Invalid Type\n");
1612 break;
1613 }
1614 }
1615
1616unlock:
1617 spin_unlock_bh(&ar->data_lock);
1618
1619 if (len >= buf_len)
1620 buf[len - 1] = 0;
1621 else
1622 buf[len] = 0;
1623}
1624
1625static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1626{
1627 struct ath10k *ar = inode->i_private;
1628 void *buf = NULL;
1629 int ret;
1630
1631 mutex_lock(&ar->conf_mutex);
1632
1633 if (ar->state != ATH10K_STATE_ON) {
1634 ret = -ENETDOWN;
1635 goto err_unlock;
1636 }
1637
1638 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1639 if (!buf) {
1640 ret = -ENOMEM;
1641 goto err_unlock;
1642 }
1643
1644 ret = ath10k_debug_tpc_stats_request(ar);
1645 if (ret) {
1646 ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1647 ret);
1648 goto err_free;
1649 }
1650
1651 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1652 file->private_data = buf;
1653
1654 mutex_unlock(&ar->conf_mutex);
1655 return 0;
1656
1657err_free:
1658 vfree(buf);
1659
1660err_unlock:
1661 mutex_unlock(&ar->conf_mutex);
1662 return ret;
1663}
1664
1665static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1666{
1667 vfree(file->private_data);
1668
1669 return 0;
1670}
1671
1672static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1673 size_t count, loff_t *ppos)
1674{
1675 const char *buf = file->private_data;
1676 size_t len = strlen(buf);
1677
1678 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1679}
1680
1681static const struct file_operations fops_tpc_stats = {
1682 .open = ath10k_tpc_stats_open,
1683 .release = ath10k_tpc_stats_release,
1684 .read = ath10k_tpc_stats_read,
1685 .owner = THIS_MODULE,
1686 .llseek = default_llseek,
1687};
1688
1689int ath10k_debug_start(struct ath10k *ar)
1690{
1691 int ret;
1692
1693 lockdep_assert_held(&ar->conf_mutex);
1694
1695 ret = ath10k_debug_htt_stats_req(ar);
1696 if (ret)
1697 /* continue normally anyway, this isn't serious */
1698 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1699 ret);
1700
1701 if (ar->debug.fw_dbglog_mask) {
1702 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1703 ATH10K_DBGLOG_LEVEL_WARN);
1704 if (ret)
1705 /* not serious */
1706 ath10k_warn(ar, "failed to enable dbglog during start: %d",
1707 ret);
1708 }
1709
1710 if (ar->pktlog_filter) {
1711 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1712 ar->pktlog_filter);
1713 if (ret)
1714 /* not serious */
1715 ath10k_warn(ar,
1716 "failed to enable pktlog filter %x: %d\n",
1717 ar->pktlog_filter, ret);
1718 } else {
1719 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1720 if (ret)
1721 /* not serious */
1722 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1723 }
1724
1725 if (ar->debug.nf_cal_period &&
1726 !test_bit(ATH10K_FW_FEATURE_NON_BMI,
1727 ar->normal_mode_fw.fw_file.fw_features)) {
1728 ret = ath10k_wmi_pdev_set_param(ar,
1729 ar->wmi.pdev_param->cal_period,
1730 ar->debug.nf_cal_period);
1731 if (ret)
1732 /* not serious */
1733 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1734 ret);
1735 }
1736
1737 return ret;
1738}
1739
1740void ath10k_debug_stop(struct ath10k *ar)
1741{
1742 lockdep_assert_held(&ar->conf_mutex);
1743
1744 if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
1745 ar->normal_mode_fw.fw_file.fw_features))
1746 ath10k_debug_cal_data_fetch(ar);
1747
1748 /* Must not use _sync to avoid deadlock, we do that in
1749 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1750 * warning from del_timer().
1751 */
1752 if (ar->debug.htt_stats_mask != 0)
1753 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1754
1755 ath10k_wmi_pdev_pktlog_disable(ar);
1756}
1757
1758static ssize_t ath10k_write_simulate_radar(struct file *file,
1759 const char __user *user_buf,
1760 size_t count, loff_t *ppos)
1761{
1762 struct ath10k *ar = file->private_data;
1763 struct ath10k_vif *arvif;
1764
1765 /* Just check for for the first vif alone, as all the vifs will be
1766 * sharing the same channel and if the channel is disabled, all the
1767 * vifs will share the same 'is_started' state.
1768 */
1769 arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
1770 if (!arvif->is_started)
1771 return -EINVAL;
1772
1773 ieee80211_radar_detected(ar->hw);
1774
1775 return count;
1776}
1777
1778static const struct file_operations fops_simulate_radar = {
1779 .write = ath10k_write_simulate_radar,
1780 .open = simple_open,
1781 .owner = THIS_MODULE,
1782 .llseek = default_llseek,
1783};
1784
1785#define ATH10K_DFS_STAT(s, p) (\
1786 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1787 ar->debug.dfs_stats.p))
1788
1789#define ATH10K_DFS_POOL_STAT(s, p) (\
1790 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1791 ar->debug.dfs_pool_stats.p))
1792
1793static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1794 size_t count, loff_t *ppos)
1795{
1796 int retval = 0, len = 0;
1797 const int size = 8000;
1798 struct ath10k *ar = file->private_data;
1799 char *buf;
1800
1801 buf = kzalloc(size, GFP_KERNEL);
1802 if (buf == NULL)
1803 return -ENOMEM;
1804
1805 if (!ar->dfs_detector) {
1806 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1807 goto exit;
1808 }
1809
1810 ar->debug.dfs_pool_stats =
1811 ar->dfs_detector->get_stats(ar->dfs_detector);
1812
1813 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1814
1815 ATH10K_DFS_STAT("reported phy errors", phy_errors);
1816 ATH10K_DFS_STAT("pulse events reported", pulses_total);
1817 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1818 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1819 ATH10K_DFS_STAT("Radars detected", radar_detected);
1820
1821 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1822 ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1823 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1824 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1825 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1826 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1827 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1828 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1829
1830exit:
1831 if (len > size)
1832 len = size;
1833
1834 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1835 kfree(buf);
1836
1837 return retval;
1838}
1839
1840static const struct file_operations fops_dfs_stats = {
1841 .read = ath10k_read_dfs_stats,
1842 .open = simple_open,
1843 .owner = THIS_MODULE,
1844 .llseek = default_llseek,
1845};
1846
1847static ssize_t ath10k_write_pktlog_filter(struct file *file,
1848 const char __user *ubuf,
1849 size_t count, loff_t *ppos)
1850{
1851 struct ath10k *ar = file->private_data;
1852 u32 filter;
1853 int ret;
1854
1855 if (kstrtouint_from_user(ubuf, count, 0, &filter))
1856 return -EINVAL;
1857
1858 mutex_lock(&ar->conf_mutex);
1859
1860 if (ar->state != ATH10K_STATE_ON) {
1861 ar->pktlog_filter = filter;
1862 ret = count;
1863 goto out;
1864 }
1865
1866 if (filter == ar->pktlog_filter) {
1867 ret = count;
1868 goto out;
1869 }
1870
1871 if (filter) {
1872 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1873 if (ret) {
1874 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1875 ar->pktlog_filter, ret);
1876 goto out;
1877 }
1878 } else {
1879 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1880 if (ret) {
1881 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1882 goto out;
1883 }
1884 }
1885
1886 ar->pktlog_filter = filter;
1887 ret = count;
1888
1889out:
1890 mutex_unlock(&ar->conf_mutex);
1891 return ret;
1892}
1893
1894static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1895 size_t count, loff_t *ppos)
1896{
1897 char buf[32];
1898 struct ath10k *ar = file->private_data;
1899 int len = 0;
1900
1901 mutex_lock(&ar->conf_mutex);
1902 len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1903 ar->pktlog_filter);
1904 mutex_unlock(&ar->conf_mutex);
1905
1906 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1907}
1908
1909static const struct file_operations fops_pktlog_filter = {
1910 .read = ath10k_read_pktlog_filter,
1911 .write = ath10k_write_pktlog_filter,
1912 .open = simple_open
1913};
1914
1915static ssize_t ath10k_write_quiet_period(struct file *file,
1916 const char __user *ubuf,
1917 size_t count, loff_t *ppos)
1918{
1919 struct ath10k *ar = file->private_data;
1920 u32 period;
1921
1922 if (kstrtouint_from_user(ubuf, count, 0, &period))
1923 return -EINVAL;
1924
1925 if (period < ATH10K_QUIET_PERIOD_MIN) {
1926 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
1927 period);
1928 return -EINVAL;
1929 }
1930 mutex_lock(&ar->conf_mutex);
1931 ar->thermal.quiet_period = period;
1932 ath10k_thermal_set_throttling(ar);
1933 mutex_unlock(&ar->conf_mutex);
1934
1935 return count;
1936}
1937
1938static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
1939 size_t count, loff_t *ppos)
1940{
1941 char buf[32];
1942 struct ath10k *ar = file->private_data;
1943 int len = 0;
1944
1945 mutex_lock(&ar->conf_mutex);
1946 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1947 ar->thermal.quiet_period);
1948 mutex_unlock(&ar->conf_mutex);
1949
1950 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1951}
1952
1953static const struct file_operations fops_quiet_period = {
1954 .read = ath10k_read_quiet_period,
1955 .write = ath10k_write_quiet_period,
1956 .open = simple_open
1957};
1958
1959static ssize_t ath10k_write_btcoex(struct file *file,
1960 const char __user *ubuf,
1961 size_t count, loff_t *ppos)
1962{
1963 struct ath10k *ar = file->private_data;
1964 char buf[32];
1965 size_t buf_size;
1966 int ret;
1967 bool val;
1968 u32 pdev_param;
1969
1970 buf_size = min(count, (sizeof(buf) - 1));
1971 if (copy_from_user(buf, ubuf, buf_size))
1972 return -EFAULT;
1973
1974 buf[buf_size] = '\0';
1975
1976 if (strtobool(buf, &val) != 0)
1977 return -EINVAL;
1978
1979 mutex_lock(&ar->conf_mutex);
1980
1981 if (ar->state != ATH10K_STATE_ON &&
1982 ar->state != ATH10K_STATE_RESTARTED) {
1983 ret = -ENETDOWN;
1984 goto exit;
1985 }
1986
1987 if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
1988 ret = count;
1989 goto exit;
1990 }
1991
1992 pdev_param = ar->wmi.pdev_param->enable_btcoex;
1993 if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
1994 ar->running_fw->fw_file.fw_features)) {
1995 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
1996 if (ret) {
1997 ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
1998 ret = count;
1999 goto exit;
2000 }
2001 } else {
2002 ath10k_info(ar, "restarting firmware due to btcoex change");
2003 queue_work(ar->workqueue, &ar->restart_work);
2004 }
2005
2006 if (val)
2007 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2008 else
2009 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2010
2011 ret = count;
2012
2013exit:
2014 mutex_unlock(&ar->conf_mutex);
2015
2016 return ret;
2017}
2018
2019static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2020 size_t count, loff_t *ppos)
2021{
2022 char buf[32];
2023 struct ath10k *ar = file->private_data;
2024 int len = 0;
2025
2026 mutex_lock(&ar->conf_mutex);
2027 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2028 test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2029 mutex_unlock(&ar->conf_mutex);
2030
2031 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2032}
2033
2034static const struct file_operations fops_btcoex = {
2035 .read = ath10k_read_btcoex,
2036 .write = ath10k_write_btcoex,
2037 .open = simple_open
2038};
2039
2040static ssize_t ath10k_write_enable_extd_tx_stats(struct file *file,
2041 const char __user *ubuf,
2042 size_t count, loff_t *ppos)
2043{
2044 struct ath10k *ar = file->private_data;
2045 u32 filter;
2046 int ret;
2047
2048 if (kstrtouint_from_user(ubuf, count, 0, &filter))
2049 return -EINVAL;
2050
2051 mutex_lock(&ar->conf_mutex);
2052
2053 if (ar->state != ATH10K_STATE_ON) {
2054 ar->debug.enable_extd_tx_stats = filter;
2055 ret = count;
2056 goto out;
2057 }
2058
2059 if (filter == ar->debug.enable_extd_tx_stats) {
2060 ret = count;
2061 goto out;
2062 }
2063
2064 ar->debug.enable_extd_tx_stats = filter;
2065 ret = count;
2066
2067out:
2068 mutex_unlock(&ar->conf_mutex);
2069 return ret;
2070}
2071
2072static ssize_t ath10k_read_enable_extd_tx_stats(struct file *file,
2073 char __user *ubuf,
2074 size_t count, loff_t *ppos)
2075
2076{
2077 char buf[32];
2078 struct ath10k *ar = file->private_data;
2079 int len = 0;
2080
2081 mutex_lock(&ar->conf_mutex);
2082 len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
2083 ar->debug.enable_extd_tx_stats);
2084 mutex_unlock(&ar->conf_mutex);
2085
2086 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2087}
2088
2089static const struct file_operations fops_enable_extd_tx_stats = {
2090 .read = ath10k_read_enable_extd_tx_stats,
2091 .write = ath10k_write_enable_extd_tx_stats,
2092 .open = simple_open
2093};
2094
2095static ssize_t ath10k_write_peer_stats(struct file *file,
2096 const char __user *ubuf,
2097 size_t count, loff_t *ppos)
2098{
2099 struct ath10k *ar = file->private_data;
2100 char buf[32];
2101 size_t buf_size;
2102 int ret;
2103 bool val;
2104
2105 buf_size = min(count, (sizeof(buf) - 1));
2106 if (copy_from_user(buf, ubuf, buf_size))
2107 return -EFAULT;
2108
2109 buf[buf_size] = '\0';
2110
2111 if (strtobool(buf, &val) != 0)
2112 return -EINVAL;
2113
2114 mutex_lock(&ar->conf_mutex);
2115
2116 if (ar->state != ATH10K_STATE_ON &&
2117 ar->state != ATH10K_STATE_RESTARTED) {
2118 ret = -ENETDOWN;
2119 goto exit;
2120 }
2121
2122 if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2123 ret = count;
2124 goto exit;
2125 }
2126
2127 if (val)
2128 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2129 else
2130 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2131
2132 ath10k_info(ar, "restarting firmware due to Peer stats change");
2133
2134 queue_work(ar->workqueue, &ar->restart_work);
2135 ret = count;
2136
2137exit:
2138 mutex_unlock(&ar->conf_mutex);
2139 return ret;
2140}
2141
2142static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2143 size_t count, loff_t *ppos)
2144
2145{
2146 char buf[32];
2147 struct ath10k *ar = file->private_data;
2148 int len = 0;
2149
2150 mutex_lock(&ar->conf_mutex);
2151 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2152 test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2153 mutex_unlock(&ar->conf_mutex);
2154
2155 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2156}
2157
2158static const struct file_operations fops_peer_stats = {
2159 .read = ath10k_read_peer_stats,
2160 .write = ath10k_write_peer_stats,
2161 .open = simple_open
2162};
2163
2164static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2165 char __user *user_buf,
2166 size_t count, loff_t *ppos)
2167{
2168 struct ath10k *ar = file->private_data;
2169 size_t len = 0, buf_len = 4096;
2170 ssize_t ret_cnt;
2171 char *buf;
2172
2173 buf = kzalloc(buf_len, GFP_KERNEL);
2174 if (!buf)
2175 return -ENOMEM;
2176
2177 mutex_lock(&ar->conf_mutex);
2178
2179 len += scnprintf(buf + len, buf_len - len,
2180 "firmware-N.bin\t\t%08x\n",
2181 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2182 ar->normal_mode_fw.fw_file.firmware->size));
2183 len += scnprintf(buf + len, buf_len - len,
2184 "athwlan\t\t\t%08x\n",
2185 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2186 ar->normal_mode_fw.fw_file.firmware_len));
2187 len += scnprintf(buf + len, buf_len - len,
2188 "otp\t\t\t%08x\n",
2189 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2190 ar->normal_mode_fw.fw_file.otp_len));
2191 len += scnprintf(buf + len, buf_len - len,
2192 "codeswap\t\t%08x\n",
2193 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2194 ar->normal_mode_fw.fw_file.codeswap_len));
2195 len += scnprintf(buf + len, buf_len - len,
2196 "board-N.bin\t\t%08x\n",
2197 crc32_le(0, ar->normal_mode_fw.board->data,
2198 ar->normal_mode_fw.board->size));
2199 len += scnprintf(buf + len, buf_len - len,
2200 "board\t\t\t%08x\n",
2201 crc32_le(0, ar->normal_mode_fw.board_data,
2202 ar->normal_mode_fw.board_len));
2203
2204 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2205
2206 mutex_unlock(&ar->conf_mutex);
2207
2208 kfree(buf);
2209 return ret_cnt;
2210}
2211
2212static const struct file_operations fops_fw_checksums = {
2213 .read = ath10k_debug_fw_checksums_read,
2214 .open = simple_open,
2215 .owner = THIS_MODULE,
2216 .llseek = default_llseek,
2217};
2218
2219static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file,
2220 char __user *user_buf,
2221 size_t count, loff_t *ppos)
2222{
2223 struct ath10k *ar = file->private_data;
2224 char buf[32];
2225 size_t len;
2226
2227 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask);
2228 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2229}
2230
2231static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file,
2232 const char __user *user_buf,
2233 size_t count, loff_t *ppos)
2234{
2235 struct ath10k *ar = file->private_data;
2236 char buf[32];
2237 ssize_t len;
2238 u32 mask;
2239
2240 len = min(count, sizeof(buf) - 1);
2241 if (copy_from_user(buf, user_buf, len))
2242 return -EFAULT;
2243
2244 buf[len] = '\0';
2245 if (kstrtoint(buf, 0, &mask))
2246 return -EINVAL;
2247
2248 ar->sta_tid_stats_mask = mask;
2249
2250 return len;
2251}
2252
2253static const struct file_operations fops_sta_tid_stats_mask = {
2254 .read = ath10k_sta_tid_stats_mask_read,
2255 .write = ath10k_sta_tid_stats_mask_write,
2256 .open = simple_open,
2257 .owner = THIS_MODULE,
2258 .llseek = default_llseek,
2259};
2260
2261static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar)
2262{
2263 int ret;
2264 unsigned long time_left;
2265
2266 lockdep_assert_held(&ar->conf_mutex);
2267
2268 reinit_completion(&ar->debug.tpc_complete);
2269
2270 ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM);
2271 if (ret) {
2272 ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret);
2273 return ret;
2274 }
2275
2276 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
2277 1 * HZ);
2278 if (time_left == 0)
2279 return -ETIMEDOUT;
2280
2281 return 0;
2282}
2283
2284static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file)
2285{
2286 struct ath10k *ar = inode->i_private;
2287 void *buf;
2288 int ret;
2289
2290 mutex_lock(&ar->conf_mutex);
2291
2292 if (ar->state != ATH10K_STATE_ON) {
2293 ret = -ENETDOWN;
2294 goto err_unlock;
2295 }
2296
2297 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
2298 if (!buf) {
2299 ret = -ENOMEM;
2300 goto err_unlock;
2301 }
2302
2303 ret = ath10k_debug_tpc_stats_final_request(ar);
2304 if (ret) {
2305 ath10k_warn(ar, "failed to request tpc stats final: %d\n",
2306 ret);
2307 goto err_free;
2308 }
2309
2310 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
2311 file->private_data = buf;
2312
2313 mutex_unlock(&ar->conf_mutex);
2314 return 0;
2315
2316err_free:
2317 vfree(buf);
2318
2319err_unlock:
2320 mutex_unlock(&ar->conf_mutex);
2321 return ret;
2322}
2323
2324static int ath10k_tpc_stats_final_release(struct inode *inode,
2325 struct file *file)
2326{
2327 vfree(file->private_data);
2328
2329 return 0;
2330}
2331
2332static ssize_t ath10k_tpc_stats_final_read(struct file *file,
2333 char __user *user_buf,
2334 size_t count, loff_t *ppos)
2335{
2336 const char *buf = file->private_data;
2337 unsigned int len = strlen(buf);
2338
2339 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2340}
2341
2342static const struct file_operations fops_tpc_stats_final = {
2343 .open = ath10k_tpc_stats_final_open,
2344 .release = ath10k_tpc_stats_final_release,
2345 .read = ath10k_tpc_stats_final_read,
2346 .owner = THIS_MODULE,
2347 .llseek = default_llseek,
2348};
2349
2350static ssize_t ath10k_write_warm_hw_reset(struct file *file,
2351 const char __user *user_buf,
2352 size_t count, loff_t *ppos)
2353{
2354 struct ath10k *ar = file->private_data;
2355 int ret;
2356 bool val;
2357
2358 if (kstrtobool_from_user(user_buf, count, &val))
2359 return -EFAULT;
2360
2361 if (!val)
2362 return -EINVAL;
2363
2364 mutex_lock(&ar->conf_mutex);
2365
2366 if (ar->state != ATH10K_STATE_ON) {
2367 ret = -ENETDOWN;
2368 goto exit;
2369 }
2370
2371 if (!(test_bit(WMI_SERVICE_RESET_CHIP, ar->wmi.svc_map)))
2372 ath10k_warn(ar, "wmi service for reset chip is not available\n");
2373
2374 ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pdev_reset,
2375 WMI_RST_MODE_WARM_RESET);
2376
2377 if (ret) {
2378 ath10k_warn(ar, "failed to enable warm hw reset: %d\n", ret);
2379 goto exit;
2380 }
2381
2382 ret = count;
2383
2384exit:
2385 mutex_unlock(&ar->conf_mutex);
2386 return ret;
2387}
2388
2389static const struct file_operations fops_warm_hw_reset = {
2390 .write = ath10k_write_warm_hw_reset,
2391 .open = simple_open,
2392 .owner = THIS_MODULE,
2393 .llseek = default_llseek,
2394};
2395
2396static void ath10k_peer_ps_state_disable(void *data,
2397 struct ieee80211_sta *sta)
2398{
2399 struct ath10k *ar = data;
2400 struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
2401
2402 spin_lock_bh(&ar->data_lock);
2403 arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
2404 spin_unlock_bh(&ar->data_lock);
2405}
2406
2407static ssize_t ath10k_write_ps_state_enable(struct file *file,
2408 const char __user *user_buf,
2409 size_t count, loff_t *ppos)
2410{
2411 struct ath10k *ar = file->private_data;
2412 int ret;
2413 u32 param;
2414 u8 ps_state_enable;
2415
2416 if (kstrtou8_from_user(user_buf, count, 0, &ps_state_enable))
2417 return -EINVAL;
2418
2419 if (ps_state_enable > 1)
2420 return -EINVAL;
2421
2422 mutex_lock(&ar->conf_mutex);
2423
2424 if (ar->ps_state_enable == ps_state_enable) {
2425 ret = count;
2426 goto exit;
2427 }
2428
2429 param = ar->wmi.pdev_param->peer_sta_ps_statechg_enable;
2430 ret = ath10k_wmi_pdev_set_param(ar, param, ps_state_enable);
2431 if (ret) {
2432 ath10k_warn(ar, "failed to enable ps_state_enable: %d\n",
2433 ret);
2434 goto exit;
2435 }
2436 ar->ps_state_enable = ps_state_enable;
2437
2438 if (!ar->ps_state_enable)
2439 ieee80211_iterate_stations_atomic(ar->hw,
2440 ath10k_peer_ps_state_disable,
2441 ar);
2442
2443 ret = count;
2444
2445exit:
2446 mutex_unlock(&ar->conf_mutex);
2447
2448 return ret;
2449}
2450
2451static ssize_t ath10k_read_ps_state_enable(struct file *file,
2452 char __user *user_buf,
2453 size_t count, loff_t *ppos)
2454{
2455 struct ath10k *ar = file->private_data;
2456 int len = 0;
2457 char buf[32];
2458
2459 mutex_lock(&ar->conf_mutex);
2460 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2461 ar->ps_state_enable);
2462 mutex_unlock(&ar->conf_mutex);
2463
2464 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2465}
2466
2467static const struct file_operations fops_ps_state_enable = {
2468 .read = ath10k_read_ps_state_enable,
2469 .write = ath10k_write_ps_state_enable,
2470 .open = simple_open,
2471 .owner = THIS_MODULE,
2472 .llseek = default_llseek,
2473};
2474
2475static ssize_t ath10k_write_reset_htt_stats(struct file *file,
2476 const char __user *user_buf,
2477 size_t count, loff_t *ppos)
2478{
2479 struct ath10k *ar = file->private_data;
2480 unsigned long reset;
2481 int ret;
2482
2483 ret = kstrtoul_from_user(user_buf, count, 0, &reset);
2484 if (ret)
2485 return ret;
2486
2487 if (reset == 0 || reset > 0x1ffff)
2488 return -EINVAL;
2489
2490 mutex_lock(&ar->conf_mutex);
2491
2492 ar->debug.reset_htt_stats = reset;
2493
2494 ret = ath10k_debug_htt_stats_req(ar);
2495 if (ret)
2496 goto out;
2497
2498 ar->debug.reset_htt_stats = 0;
2499 ret = count;
2500
2501out:
2502 mutex_unlock(&ar->conf_mutex);
2503 return ret;
2504}
2505
2506static const struct file_operations fops_reset_htt_stats = {
2507 .write = ath10k_write_reset_htt_stats,
2508 .owner = THIS_MODULE,
2509 .open = simple_open,
2510 .llseek = default_llseek,
2511};
2512
2513int ath10k_debug_create(struct ath10k *ar)
2514{
2515 ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2516 if (!ar->debug.cal_data)
2517 return -ENOMEM;
2518
2519 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2520 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2521 INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2522 INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2523
2524 return 0;
2525}
2526
2527void ath10k_debug_destroy(struct ath10k *ar)
2528{
2529 vfree(ar->debug.cal_data);
2530 ar->debug.cal_data = NULL;
2531
2532 ath10k_debug_fw_stats_reset(ar);
2533
2534 kfree(ar->debug.tpc_stats);
2535}
2536
2537int ath10k_debug_register(struct ath10k *ar)
2538{
2539 ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2540 ar->hw->wiphy->debugfsdir);
2541 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2542 if (IS_ERR(ar->debug.debugfs_phy))
2543 return PTR_ERR(ar->debug.debugfs_phy);
2544
2545 return -ENOMEM;
2546 }
2547
2548 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2549 ath10k_debug_htt_stats_dwork);
2550
2551 init_completion(&ar->debug.tpc_complete);
2552 init_completion(&ar->debug.fw_stats_complete);
2553
2554 debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
2555 &fops_fw_stats);
2556
2557 debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
2558 &fops_fw_reset_stats);
2559
2560 debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
2561 &fops_wmi_services);
2562
2563 debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
2564 &fops_simulate_fw_crash);
2565
2566 debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
2567 &fops_reg_addr);
2568
2569 debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
2570 &fops_reg_value);
2571
2572 debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
2573 &fops_mem_value);
2574
2575 debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
2576 &fops_chip_id);
2577
2578 debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
2579 &fops_htt_stats_mask);
2580
2581 debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
2582 &fops_htt_max_amsdu_ampdu);
2583
2584 debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
2585 &fops_fw_dbglog);
2586
2587 if (!test_bit(ATH10K_FW_FEATURE_NON_BMI,
2588 ar->normal_mode_fw.fw_file.fw_features)) {
2589 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
2590 &fops_cal_data);
2591
2592 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
2593 &fops_nf_cal_period);
2594 }
2595
2596 debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
2597 &fops_ani_enable);
2598
2599 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2600 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
2601 ar, &fops_simulate_radar);
2602
2603 debugfs_create_bool("dfs_block_radar_events", 0200,
2604 ar->debug.debugfs_phy,
2605 &ar->dfs_block_radar_events);
2606
2607 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
2608 &fops_dfs_stats);
2609 }
2610
2611 debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
2612 &fops_pktlog_filter);
2613
2614 if (test_bit(WMI_SERVICE_THERM_THROT, ar->wmi.svc_map))
2615 debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
2616 &fops_quiet_period);
2617
2618 debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
2619 &fops_tpc_stats);
2620
2621 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2622 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
2623 &fops_btcoex);
2624
2625 if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
2626 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
2627 &fops_peer_stats);
2628
2629 debugfs_create_file("enable_extd_tx_stats", 0644,
2630 ar->debug.debugfs_phy, ar,
2631 &fops_enable_extd_tx_stats);
2632 }
2633
2634 debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
2635 &fops_fw_checksums);
2636
2637 if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS))
2638 debugfs_create_file("sta_tid_stats_mask", 0600,
2639 ar->debug.debugfs_phy,
2640 ar, &fops_sta_tid_stats_mask);
2641
2642 if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map))
2643 debugfs_create_file("tpc_stats_final", 0400,
2644 ar->debug.debugfs_phy, ar,
2645 &fops_tpc_stats_final);
2646
2647 debugfs_create_file("warm_hw_reset", 0600, ar->debug.debugfs_phy, ar,
2648 &fops_warm_hw_reset);
2649
2650 debugfs_create_file("ps_state_enable", 0600, ar->debug.debugfs_phy, ar,
2651 &fops_ps_state_enable);
2652
2653 debugfs_create_file("reset_htt_stats", 0200, ar->debug.debugfs_phy, ar,
2654 &fops_reset_htt_stats);
2655
2656 return 0;
2657}
2658
2659void ath10k_debug_unregister(struct ath10k *ar)
2660{
2661 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2662}
2663
2664#endif /* CONFIG_ATH10K_DEBUGFS */
2665
2666#ifdef CONFIG_ATH10K_DEBUG
2667void __ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2668 const char *fmt, ...)
2669{
2670 struct va_format vaf;
2671 va_list args;
2672
2673 va_start(args, fmt);
2674
2675 vaf.fmt = fmt;
2676 vaf.va = &args;
2677
2678 if (ath10k_debug_mask & mask)
2679 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2680
2681 trace_ath10k_log_dbg(ar, mask, &vaf);
2682
2683 va_end(args);
2684}
2685EXPORT_SYMBOL(__ath10k_dbg);
2686
2687void ath10k_dbg_dump(struct ath10k *ar,
2688 enum ath10k_debug_mask mask,
2689 const char *msg, const char *prefix,
2690 const void *buf, size_t len)
2691{
2692 char linebuf[256];
2693 size_t linebuflen;
2694 const void *ptr;
2695
2696 if (ath10k_debug_mask & mask) {
2697 if (msg)
2698 __ath10k_dbg(ar, mask, "%s\n", msg);
2699
2700 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2701 linebuflen = 0;
2702 linebuflen += scnprintf(linebuf + linebuflen,
2703 sizeof(linebuf) - linebuflen,
2704 "%s%08x: ",
2705 (prefix ? prefix : ""),
2706 (unsigned int)(ptr - buf));
2707 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2708 linebuf + linebuflen,
2709 sizeof(linebuf) - linebuflen, true);
2710 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2711 }
2712 }
2713
2714 /* tracing code doesn't like null strings :/ */
2715 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2716 buf, len);
2717}
2718EXPORT_SYMBOL(ath10k_dbg_dump);
2719
2720#endif /* CONFIG_ATH10K_DEBUG */