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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
35void 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}
48EXPORT_SYMBOL(ath10k_info);
49
50void 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
82void 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
106void 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
119void 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}
125EXPORT_SYMBOL(ath10k_print_driver_info);
126
127void 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}
140EXPORT_SYMBOL(ath10k_err);
141
142void 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}
156EXPORT_SYMBOL(ath10k_warn);
157
158#ifdef CONFIG_ATH10K_DEBUGFS
159
160static 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
206static 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
213static 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
223static 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
233static 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
243static 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
253static 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
265void 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
348free:
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
360static 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
400static 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
436err_free:
437 vfree(buf);
438
439err_unlock:
440 mutex_unlock(&ar->conf_mutex);
441 return ret;
442}
443
444static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
445{
446 vfree(file->private_data);
447
448 return 0;
449}
450
451static 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
460static 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
468static 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
501static 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. */
509static 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
528static 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 */
549static 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
608exit:
609 mutex_unlock(&ar->conf_mutex);
610 return ret;
611}
612
613static 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
621static 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
633static 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
640static 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
658static 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
680static 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
688static 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
713exit:
714 mutex_unlock(&ar->conf_mutex);
715
716 return ret;
717}
718
719static 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
745exit:
746 mutex_unlock(&ar->conf_mutex);
747
748 return ret;
749}
750
751static 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
759static 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
804exit:
805 vfree(buf);
806 mutex_unlock(&ar->conf_mutex);
807
808 return ret;
809}
810
811static 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
855exit:
856 vfree(buf);
857 mutex_unlock(&ar->conf_mutex);
858
859 return ret;
860}
861
862static 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
870static 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
899static 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
911static 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
924static 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
950out:
951 mutex_unlock(&ar->conf_mutex);
952
953 return ret;
954}
955
956static 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
964static 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
984static 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];
991 unsigned int amsdu, ampdu;
992
993 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
994
995 /* make sure that buf is null terminated */
996 buf[sizeof(buf) - 1] = 0;
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
1013out:
1014 mutex_unlock(&ar->conf_mutex);
1015 return res;
1016}
1017
1018static 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
1026static 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
1040static 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];
1047 unsigned int log_level;
1048 u64 mask;
1049
1050 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
1051
1052 /* make sure that buf is null terminated */
1053 buf[sizeof(buf) - 1] = 0;
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
1081exit:
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 */
1093static 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
1144void 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
1153int 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
1162void 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
1247static 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
1255static 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
1285static 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
1302static 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
1319static 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
1347exit:
1348 mutex_unlock(&ar->conf_mutex);
1349
1350 return ret;
1351}
1352
1353static 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
1365static 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
1373static 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
1380static 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
1393static 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
1432exit:
1433 mutex_unlock(&ar->conf_mutex);
1434
1435 return ret;
1436}
1437
1438static 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
1448static 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
1471void 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
1483void
1484ath10k_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
1496static 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 tpc_value1 tpc_value2 tpc_value3\n");
1523
1524 for (i = 0; i < tpc_stats->rate_max; i++) {
1525 *len += scnprintf(buf + *len, buf_len - *len,
1526 "%8d %s 0x%2x %s\n", i,
1527 pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1528 tpc_stats->tpc_table[j].rate_code[i],
1529 tpc_stats->tpc_table[j].tpc_value[i]);
1530 }
1531
1532 *len += scnprintf(buf + *len, buf_len - *len,
1533 "***********************************\n");
1534}
1535
1536static void ath10k_tpc_stats_fill(struct ath10k *ar,
1537 struct ath10k_tpc_stats *tpc_stats,
1538 char *buf)
1539{
1540 int j;
1541 size_t len, buf_len;
1542
1543 len = 0;
1544 buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1545
1546 spin_lock_bh(&ar->data_lock);
1547
1548 if (!tpc_stats) {
1549 ath10k_warn(ar, "failed to get tpc stats\n");
1550 goto unlock;
1551 }
1552
1553 len += scnprintf(buf + len, buf_len - len, "\n");
1554 len += scnprintf(buf + len, buf_len - len,
1555 "*************************************\n");
1556 len += scnprintf(buf + len, buf_len - len,
1557 "TPC config for channel %4d mode %d\n",
1558 tpc_stats->chan_freq,
1559 tpc_stats->phy_mode);
1560 len += scnprintf(buf + len, buf_len - len,
1561 "*************************************\n");
1562 len += scnprintf(buf + len, buf_len - len,
1563 "CTL = 0x%2x Reg. Domain = %2d\n",
1564 tpc_stats->ctl,
1565 tpc_stats->reg_domain);
1566 len += scnprintf(buf + len, buf_len - len,
1567 "Antenna Gain = %2d Reg. Max Antenna Gain = %2d\n",
1568 tpc_stats->twice_antenna_gain,
1569 tpc_stats->twice_antenna_reduction);
1570 len += scnprintf(buf + len, buf_len - len,
1571 "Power Limit = %2d Reg. Max Power = %2d\n",
1572 tpc_stats->power_limit,
1573 tpc_stats->twice_max_rd_power / 2);
1574 len += scnprintf(buf + len, buf_len - len,
1575 "Num tx chains = %2d Num supported rates = %2d\n",
1576 tpc_stats->num_tx_chain,
1577 tpc_stats->rate_max);
1578
1579 for (j = 0; j < WMI_TPC_FLAG; j++) {
1580 switch (j) {
1581 case WMI_TPC_TABLE_TYPE_CDD:
1582 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1583 len += scnprintf(buf + len, buf_len - len,
1584 "CDD not supported\n");
1585 break;
1586 }
1587
1588 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1589 break;
1590 case WMI_TPC_TABLE_TYPE_STBC:
1591 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1592 len += scnprintf(buf + len, buf_len - len,
1593 "STBC not supported\n");
1594 break;
1595 }
1596
1597 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1598 break;
1599 case WMI_TPC_TABLE_TYPE_TXBF:
1600 if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1601 len += scnprintf(buf + len, buf_len - len,
1602 "TXBF not supported\n***************************\n");
1603 break;
1604 }
1605
1606 ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1607 break;
1608 default:
1609 len += scnprintf(buf + len, buf_len - len,
1610 "Invalid Type\n");
1611 break;
1612 }
1613 }
1614
1615unlock:
1616 spin_unlock_bh(&ar->data_lock);
1617
1618 if (len >= buf_len)
1619 buf[len - 1] = 0;
1620 else
1621 buf[len] = 0;
1622}
1623
1624static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1625{
1626 struct ath10k *ar = inode->i_private;
1627 void *buf = NULL;
1628 int ret;
1629
1630 mutex_lock(&ar->conf_mutex);
1631
1632 if (ar->state != ATH10K_STATE_ON) {
1633 ret = -ENETDOWN;
1634 goto err_unlock;
1635 }
1636
1637 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1638 if (!buf) {
1639 ret = -ENOMEM;
1640 goto err_unlock;
1641 }
1642
1643 ret = ath10k_debug_tpc_stats_request(ar);
1644 if (ret) {
1645 ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1646 ret);
1647 goto err_free;
1648 }
1649
1650 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1651 file->private_data = buf;
1652
1653 mutex_unlock(&ar->conf_mutex);
1654 return 0;
1655
1656err_free:
1657 vfree(buf);
1658
1659err_unlock:
1660 mutex_unlock(&ar->conf_mutex);
1661 return ret;
1662}
1663
1664static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1665{
1666 vfree(file->private_data);
1667
1668 return 0;
1669}
1670
1671static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1672 size_t count, loff_t *ppos)
1673{
1674 const char *buf = file->private_data;
1675 size_t len = strlen(buf);
1676
1677 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1678}
1679
1680static const struct file_operations fops_tpc_stats = {
1681 .open = ath10k_tpc_stats_open,
1682 .release = ath10k_tpc_stats_release,
1683 .read = ath10k_tpc_stats_read,
1684 .owner = THIS_MODULE,
1685 .llseek = default_llseek,
1686};
1687
1688int ath10k_debug_start(struct ath10k *ar)
1689{
1690 int ret;
1691
1692 lockdep_assert_held(&ar->conf_mutex);
1693
1694 ret = ath10k_debug_htt_stats_req(ar);
1695 if (ret)
1696 /* continue normally anyway, this isn't serious */
1697 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1698 ret);
1699
1700 if (ar->debug.fw_dbglog_mask) {
1701 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1702 ATH10K_DBGLOG_LEVEL_WARN);
1703 if (ret)
1704 /* not serious */
1705 ath10k_warn(ar, "failed to enable dbglog during start: %d",
1706 ret);
1707 }
1708
1709 if (ar->pktlog_filter) {
1710 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1711 ar->pktlog_filter);
1712 if (ret)
1713 /* not serious */
1714 ath10k_warn(ar,
1715 "failed to enable pktlog filter %x: %d\n",
1716 ar->pktlog_filter, ret);
1717 } else {
1718 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1719 if (ret)
1720 /* not serious */
1721 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1722 }
1723
1724 if (ar->debug.nf_cal_period) {
1725 ret = ath10k_wmi_pdev_set_param(ar,
1726 ar->wmi.pdev_param->cal_period,
1727 ar->debug.nf_cal_period);
1728 if (ret)
1729 /* not serious */
1730 ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1731 ret);
1732 }
1733
1734 return ret;
1735}
1736
1737void ath10k_debug_stop(struct ath10k *ar)
1738{
1739 lockdep_assert_held(&ar->conf_mutex);
1740
1741 ath10k_debug_cal_data_fetch(ar);
1742
1743 /* Must not use _sync to avoid deadlock, we do that in
1744 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1745 * warning from del_timer().
1746 */
1747 if (ar->debug.htt_stats_mask != 0)
1748 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1749
1750 ath10k_wmi_pdev_pktlog_disable(ar);
1751}
1752
1753static ssize_t ath10k_write_simulate_radar(struct file *file,
1754 const char __user *user_buf,
1755 size_t count, loff_t *ppos)
1756{
1757 struct ath10k *ar = file->private_data;
1758 struct ath10k_vif *arvif;
1759
1760 /* Just check for for the first vif alone, as all the vifs will be
1761 * sharing the same channel and if the channel is disabled, all the
1762 * vifs will share the same 'is_started' state.
1763 */
1764 arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
1765 if (!arvif->is_started)
1766 return -EINVAL;
1767
1768 ieee80211_radar_detected(ar->hw);
1769
1770 return count;
1771}
1772
1773static const struct file_operations fops_simulate_radar = {
1774 .write = ath10k_write_simulate_radar,
1775 .open = simple_open,
1776 .owner = THIS_MODULE,
1777 .llseek = default_llseek,
1778};
1779
1780#define ATH10K_DFS_STAT(s, p) (\
1781 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1782 ar->debug.dfs_stats.p))
1783
1784#define ATH10K_DFS_POOL_STAT(s, p) (\
1785 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1786 ar->debug.dfs_pool_stats.p))
1787
1788static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1789 size_t count, loff_t *ppos)
1790{
1791 int retval = 0, len = 0;
1792 const int size = 8000;
1793 struct ath10k *ar = file->private_data;
1794 char *buf;
1795
1796 buf = kzalloc(size, GFP_KERNEL);
1797 if (buf == NULL)
1798 return -ENOMEM;
1799
1800 if (!ar->dfs_detector) {
1801 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1802 goto exit;
1803 }
1804
1805 ar->debug.dfs_pool_stats =
1806 ar->dfs_detector->get_stats(ar->dfs_detector);
1807
1808 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1809
1810 ATH10K_DFS_STAT("reported phy errors", phy_errors);
1811 ATH10K_DFS_STAT("pulse events reported", pulses_total);
1812 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1813 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1814 ATH10K_DFS_STAT("Radars detected", radar_detected);
1815
1816 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1817 ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1818 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1819 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1820 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1821 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1822 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1823 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1824
1825exit:
1826 if (len > size)
1827 len = size;
1828
1829 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1830 kfree(buf);
1831
1832 return retval;
1833}
1834
1835static const struct file_operations fops_dfs_stats = {
1836 .read = ath10k_read_dfs_stats,
1837 .open = simple_open,
1838 .owner = THIS_MODULE,
1839 .llseek = default_llseek,
1840};
1841
1842static ssize_t ath10k_write_pktlog_filter(struct file *file,
1843 const char __user *ubuf,
1844 size_t count, loff_t *ppos)
1845{
1846 struct ath10k *ar = file->private_data;
1847 u32 filter;
1848 int ret;
1849
1850 if (kstrtouint_from_user(ubuf, count, 0, &filter))
1851 return -EINVAL;
1852
1853 mutex_lock(&ar->conf_mutex);
1854
1855 if (ar->state != ATH10K_STATE_ON) {
1856 ar->pktlog_filter = filter;
1857 ret = count;
1858 goto out;
1859 }
1860
1861 if (filter == ar->pktlog_filter) {
1862 ret = count;
1863 goto out;
1864 }
1865
1866 if (filter) {
1867 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1868 if (ret) {
1869 ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1870 ar->pktlog_filter, ret);
1871 goto out;
1872 }
1873 } else {
1874 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1875 if (ret) {
1876 ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1877 goto out;
1878 }
1879 }
1880
1881 ar->pktlog_filter = filter;
1882 ret = count;
1883
1884out:
1885 mutex_unlock(&ar->conf_mutex);
1886 return ret;
1887}
1888
1889static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1890 size_t count, loff_t *ppos)
1891{
1892 char buf[32];
1893 struct ath10k *ar = file->private_data;
1894 int len = 0;
1895
1896 mutex_lock(&ar->conf_mutex);
1897 len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1898 ar->pktlog_filter);
1899 mutex_unlock(&ar->conf_mutex);
1900
1901 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1902}
1903
1904static const struct file_operations fops_pktlog_filter = {
1905 .read = ath10k_read_pktlog_filter,
1906 .write = ath10k_write_pktlog_filter,
1907 .open = simple_open
1908};
1909
1910static ssize_t ath10k_write_quiet_period(struct file *file,
1911 const char __user *ubuf,
1912 size_t count, loff_t *ppos)
1913{
1914 struct ath10k *ar = file->private_data;
1915 u32 period;
1916
1917 if (kstrtouint_from_user(ubuf, count, 0, &period))
1918 return -EINVAL;
1919
1920 if (period < ATH10K_QUIET_PERIOD_MIN) {
1921 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
1922 period);
1923 return -EINVAL;
1924 }
1925 mutex_lock(&ar->conf_mutex);
1926 ar->thermal.quiet_period = period;
1927 ath10k_thermal_set_throttling(ar);
1928 mutex_unlock(&ar->conf_mutex);
1929
1930 return count;
1931}
1932
1933static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
1934 size_t count, loff_t *ppos)
1935{
1936 char buf[32];
1937 struct ath10k *ar = file->private_data;
1938 int len = 0;
1939
1940 mutex_lock(&ar->conf_mutex);
1941 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1942 ar->thermal.quiet_period);
1943 mutex_unlock(&ar->conf_mutex);
1944
1945 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1946}
1947
1948static const struct file_operations fops_quiet_period = {
1949 .read = ath10k_read_quiet_period,
1950 .write = ath10k_write_quiet_period,
1951 .open = simple_open
1952};
1953
1954static ssize_t ath10k_write_btcoex(struct file *file,
1955 const char __user *ubuf,
1956 size_t count, loff_t *ppos)
1957{
1958 struct ath10k *ar = file->private_data;
1959 char buf[32];
1960 size_t buf_size;
1961 int ret;
1962 bool val;
1963 u32 pdev_param;
1964
1965 buf_size = min(count, (sizeof(buf) - 1));
1966 if (copy_from_user(buf, ubuf, buf_size))
1967 return -EFAULT;
1968
1969 buf[buf_size] = '\0';
1970
1971 if (strtobool(buf, &val) != 0)
1972 return -EINVAL;
1973
1974 mutex_lock(&ar->conf_mutex);
1975
1976 if (ar->state != ATH10K_STATE_ON &&
1977 ar->state != ATH10K_STATE_RESTARTED) {
1978 ret = -ENETDOWN;
1979 goto exit;
1980 }
1981
1982 if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
1983 ret = count;
1984 goto exit;
1985 }
1986
1987 pdev_param = ar->wmi.pdev_param->enable_btcoex;
1988 if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
1989 ar->running_fw->fw_file.fw_features)) {
1990 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
1991 if (ret) {
1992 ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
1993 ret = count;
1994 goto exit;
1995 }
1996 } else {
1997 ath10k_info(ar, "restarting firmware due to btcoex change");
1998 queue_work(ar->workqueue, &ar->restart_work);
1999 }
2000
2001 if (val)
2002 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2003 else
2004 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
2005
2006 ret = count;
2007
2008exit:
2009 mutex_unlock(&ar->conf_mutex);
2010
2011 return ret;
2012}
2013
2014static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2015 size_t count, loff_t *ppos)
2016{
2017 char buf[32];
2018 struct ath10k *ar = file->private_data;
2019 int len = 0;
2020
2021 mutex_lock(&ar->conf_mutex);
2022 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2023 test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2024 mutex_unlock(&ar->conf_mutex);
2025
2026 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2027}
2028
2029static const struct file_operations fops_btcoex = {
2030 .read = ath10k_read_btcoex,
2031 .write = ath10k_write_btcoex,
2032 .open = simple_open
2033};
2034
2035static ssize_t ath10k_write_peer_stats(struct file *file,
2036 const char __user *ubuf,
2037 size_t count, loff_t *ppos)
2038{
2039 struct ath10k *ar = file->private_data;
2040 char buf[32];
2041 size_t buf_size;
2042 int ret;
2043 bool val;
2044
2045 buf_size = min(count, (sizeof(buf) - 1));
2046 if (copy_from_user(buf, ubuf, buf_size))
2047 return -EFAULT;
2048
2049 buf[buf_size] = '\0';
2050
2051 if (strtobool(buf, &val) != 0)
2052 return -EINVAL;
2053
2054 mutex_lock(&ar->conf_mutex);
2055
2056 if (ar->state != ATH10K_STATE_ON &&
2057 ar->state != ATH10K_STATE_RESTARTED) {
2058 ret = -ENETDOWN;
2059 goto exit;
2060 }
2061
2062 if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2063 ret = count;
2064 goto exit;
2065 }
2066
2067 if (val)
2068 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2069 else
2070 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2071
2072 ath10k_info(ar, "restarting firmware due to Peer stats change");
2073
2074 queue_work(ar->workqueue, &ar->restart_work);
2075 ret = count;
2076
2077exit:
2078 mutex_unlock(&ar->conf_mutex);
2079 return ret;
2080}
2081
2082static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2083 size_t count, loff_t *ppos)
2084
2085{
2086 char buf[32];
2087 struct ath10k *ar = file->private_data;
2088 int len = 0;
2089
2090 mutex_lock(&ar->conf_mutex);
2091 len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2092 test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2093 mutex_unlock(&ar->conf_mutex);
2094
2095 return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2096}
2097
2098static const struct file_operations fops_peer_stats = {
2099 .read = ath10k_read_peer_stats,
2100 .write = ath10k_write_peer_stats,
2101 .open = simple_open
2102};
2103
2104static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2105 char __user *user_buf,
2106 size_t count, loff_t *ppos)
2107{
2108 struct ath10k *ar = file->private_data;
2109 size_t len = 0, buf_len = 4096;
2110 ssize_t ret_cnt;
2111 char *buf;
2112
2113 buf = kzalloc(buf_len, GFP_KERNEL);
2114 if (!buf)
2115 return -ENOMEM;
2116
2117 mutex_lock(&ar->conf_mutex);
2118
2119 len += scnprintf(buf + len, buf_len - len,
2120 "firmware-N.bin\t\t%08x\n",
2121 crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2122 ar->normal_mode_fw.fw_file.firmware->size));
2123 len += scnprintf(buf + len, buf_len - len,
2124 "athwlan\t\t\t%08x\n",
2125 crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2126 ar->normal_mode_fw.fw_file.firmware_len));
2127 len += scnprintf(buf + len, buf_len - len,
2128 "otp\t\t\t%08x\n",
2129 crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2130 ar->normal_mode_fw.fw_file.otp_len));
2131 len += scnprintf(buf + len, buf_len - len,
2132 "codeswap\t\t%08x\n",
2133 crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2134 ar->normal_mode_fw.fw_file.codeswap_len));
2135 len += scnprintf(buf + len, buf_len - len,
2136 "board-N.bin\t\t%08x\n",
2137 crc32_le(0, ar->normal_mode_fw.board->data,
2138 ar->normal_mode_fw.board->size));
2139 len += scnprintf(buf + len, buf_len - len,
2140 "board\t\t\t%08x\n",
2141 crc32_le(0, ar->normal_mode_fw.board_data,
2142 ar->normal_mode_fw.board_len));
2143
2144 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2145
2146 mutex_unlock(&ar->conf_mutex);
2147
2148 kfree(buf);
2149 return ret_cnt;
2150}
2151
2152static const struct file_operations fops_fw_checksums = {
2153 .read = ath10k_debug_fw_checksums_read,
2154 .open = simple_open,
2155 .owner = THIS_MODULE,
2156 .llseek = default_llseek,
2157};
2158
2159static ssize_t ath10k_sta_tid_stats_mask_read(struct file *file,
2160 char __user *user_buf,
2161 size_t count, loff_t *ppos)
2162{
2163 struct ath10k *ar = file->private_data;
2164 char buf[32];
2165 size_t len;
2166
2167 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->sta_tid_stats_mask);
2168 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2169}
2170
2171static ssize_t ath10k_sta_tid_stats_mask_write(struct file *file,
2172 const char __user *user_buf,
2173 size_t count, loff_t *ppos)
2174{
2175 struct ath10k *ar = file->private_data;
2176 char buf[32];
2177 ssize_t len;
2178 u32 mask;
2179
2180 len = min(count, sizeof(buf) - 1);
2181 if (copy_from_user(buf, user_buf, len))
2182 return -EFAULT;
2183
2184 buf[len] = '\0';
2185 if (kstrtoint(buf, 0, &mask))
2186 return -EINVAL;
2187
2188 ar->sta_tid_stats_mask = mask;
2189
2190 return len;
2191}
2192
2193static const struct file_operations fops_sta_tid_stats_mask = {
2194 .read = ath10k_sta_tid_stats_mask_read,
2195 .write = ath10k_sta_tid_stats_mask_write,
2196 .open = simple_open,
2197 .owner = THIS_MODULE,
2198 .llseek = default_llseek,
2199};
2200
2201static int ath10k_debug_tpc_stats_final_request(struct ath10k *ar)
2202{
2203 int ret;
2204 unsigned long time_left;
2205
2206 lockdep_assert_held(&ar->conf_mutex);
2207
2208 reinit_completion(&ar->debug.tpc_complete);
2209
2210 ret = ath10k_wmi_pdev_get_tpc_table_cmdid(ar, WMI_TPC_CONFIG_PARAM);
2211 if (ret) {
2212 ath10k_warn(ar, "failed to request tpc table cmdid: %d\n", ret);
2213 return ret;
2214 }
2215
2216 time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
2217 1 * HZ);
2218 if (time_left == 0)
2219 return -ETIMEDOUT;
2220
2221 return 0;
2222}
2223
2224static int ath10k_tpc_stats_final_open(struct inode *inode, struct file *file)
2225{
2226 struct ath10k *ar = inode->i_private;
2227 void *buf;
2228 int ret;
2229
2230 mutex_lock(&ar->conf_mutex);
2231
2232 if (ar->state != ATH10K_STATE_ON) {
2233 ret = -ENETDOWN;
2234 goto err_unlock;
2235 }
2236
2237 buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
2238 if (!buf) {
2239 ret = -ENOMEM;
2240 goto err_unlock;
2241 }
2242
2243 ret = ath10k_debug_tpc_stats_final_request(ar);
2244 if (ret) {
2245 ath10k_warn(ar, "failed to request tpc stats final: %d\n",
2246 ret);
2247 goto err_free;
2248 }
2249
2250 ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
2251 file->private_data = buf;
2252
2253 mutex_unlock(&ar->conf_mutex);
2254 return 0;
2255
2256err_free:
2257 vfree(buf);
2258
2259err_unlock:
2260 mutex_unlock(&ar->conf_mutex);
2261 return ret;
2262}
2263
2264static int ath10k_tpc_stats_final_release(struct inode *inode,
2265 struct file *file)
2266{
2267 vfree(file->private_data);
2268
2269 return 0;
2270}
2271
2272static ssize_t ath10k_tpc_stats_final_read(struct file *file,
2273 char __user *user_buf,
2274 size_t count, loff_t *ppos)
2275{
2276 const char *buf = file->private_data;
2277 unsigned int len = strlen(buf);
2278
2279 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
2280}
2281
2282static const struct file_operations fops_tpc_stats_final = {
2283 .open = ath10k_tpc_stats_final_open,
2284 .release = ath10k_tpc_stats_final_release,
2285 .read = ath10k_tpc_stats_final_read,
2286 .owner = THIS_MODULE,
2287 .llseek = default_llseek,
2288};
2289
2290int ath10k_debug_create(struct ath10k *ar)
2291{
2292 ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2293 if (!ar->debug.cal_data)
2294 return -ENOMEM;
2295
2296 INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2297 INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2298 INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2299 INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2300
2301 return 0;
2302}
2303
2304void ath10k_debug_destroy(struct ath10k *ar)
2305{
2306 vfree(ar->debug.cal_data);
2307 ar->debug.cal_data = NULL;
2308
2309 ath10k_debug_fw_stats_reset(ar);
2310
2311 kfree(ar->debug.tpc_stats);
2312}
2313
2314int ath10k_debug_register(struct ath10k *ar)
2315{
2316 ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2317 ar->hw->wiphy->debugfsdir);
2318 if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2319 if (IS_ERR(ar->debug.debugfs_phy))
2320 return PTR_ERR(ar->debug.debugfs_phy);
2321
2322 return -ENOMEM;
2323 }
2324
2325 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2326 ath10k_debug_htt_stats_dwork);
2327
2328 init_completion(&ar->debug.tpc_complete);
2329 init_completion(&ar->debug.fw_stats_complete);
2330
2331 debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
2332 &fops_fw_stats);
2333
2334 debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
2335 &fops_fw_reset_stats);
2336
2337 debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
2338 &fops_wmi_services);
2339
2340 debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
2341 &fops_simulate_fw_crash);
2342
2343 debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
2344 &fops_reg_addr);
2345
2346 debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
2347 &fops_reg_value);
2348
2349 debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
2350 &fops_mem_value);
2351
2352 debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
2353 &fops_chip_id);
2354
2355 debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
2356 &fops_htt_stats_mask);
2357
2358 debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
2359 &fops_htt_max_amsdu_ampdu);
2360
2361 debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
2362 &fops_fw_dbglog);
2363
2364 debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
2365 &fops_cal_data);
2366
2367 debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
2368 &fops_ani_enable);
2369
2370 debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
2371 &fops_nf_cal_period);
2372
2373 if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2374 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
2375 ar, &fops_simulate_radar);
2376
2377 debugfs_create_bool("dfs_block_radar_events", 0200,
2378 ar->debug.debugfs_phy,
2379 &ar->dfs_block_radar_events);
2380
2381 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
2382 &fops_dfs_stats);
2383 }
2384
2385 debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
2386 &fops_pktlog_filter);
2387
2388 debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
2389 &fops_quiet_period);
2390
2391 debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
2392 &fops_tpc_stats);
2393
2394 if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2395 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
2396 &fops_btcoex);
2397
2398 if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
2399 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
2400 &fops_peer_stats);
2401
2402 debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
2403 &fops_fw_checksums);
2404
2405 if (IS_ENABLED(CONFIG_MAC80211_DEBUGFS))
2406 debugfs_create_file("sta_tid_stats_mask", 0600,
2407 ar->debug.debugfs_phy,
2408 ar, &fops_sta_tid_stats_mask);
2409
2410 if (test_bit(WMI_SERVICE_TPC_STATS_FINAL, ar->wmi.svc_map))
2411 debugfs_create_file("tpc_stats_final", 0400,
2412 ar->debug.debugfs_phy, ar,
2413 &fops_tpc_stats_final);
2414
2415 return 0;
2416}
2417
2418void ath10k_debug_unregister(struct ath10k *ar)
2419{
2420 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2421}
2422
2423#endif /* CONFIG_ATH10K_DEBUGFS */
2424
2425#ifdef CONFIG_ATH10K_DEBUG
2426void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2427 const char *fmt, ...)
2428{
2429 struct va_format vaf;
2430 va_list args;
2431
2432 va_start(args, fmt);
2433
2434 vaf.fmt = fmt;
2435 vaf.va = &args;
2436
2437 if (ath10k_debug_mask & mask)
2438 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2439
2440 trace_ath10k_log_dbg(ar, mask, &vaf);
2441
2442 va_end(args);
2443}
2444EXPORT_SYMBOL(ath10k_dbg);
2445
2446void ath10k_dbg_dump(struct ath10k *ar,
2447 enum ath10k_debug_mask mask,
2448 const char *msg, const char *prefix,
2449 const void *buf, size_t len)
2450{
2451 char linebuf[256];
2452 size_t linebuflen;
2453 const void *ptr;
2454
2455 if (ath10k_debug_mask & mask) {
2456 if (msg)
2457 ath10k_dbg(ar, mask, "%s\n", msg);
2458
2459 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2460 linebuflen = 0;
2461 linebuflen += scnprintf(linebuf + linebuflen,
2462 sizeof(linebuf) - linebuflen,
2463 "%s%08x: ",
2464 (prefix ? prefix : ""),
2465 (unsigned int)(ptr - buf));
2466 hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2467 linebuf + linebuflen,
2468 sizeof(linebuf) - linebuflen, true);
2469 dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2470 }
2471 }
2472
2473 /* tracing code doesn't like null strings :/ */
2474 trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2475 buf, len);
2476}
2477EXPORT_SYMBOL(ath10k_dbg_dump);
2478
2479#endif /* CONFIG_ATH10K_DEBUG */