Merge ath-current from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
[muen/linux.git] / drivers / net / wireless / ath / ath10k / debug.c
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
35 void ath10k_info(struct ath10k *ar, const char *fmt, ...)
36 {
37         struct va_format vaf = {
38                 .fmt = fmt,
39         };
40         va_list args;
41
42         va_start(args, fmt);
43         vaf.va = &args;
44         dev_info(ar->dev, "%pV", &vaf);
45         trace_ath10k_log_info(ar, &vaf);
46         va_end(args);
47 }
48 EXPORT_SYMBOL(ath10k_info);
49
50 void ath10k_debug_print_hwfw_info(struct ath10k *ar)
51 {
52         const struct firmware *firmware;
53         char fw_features[128] = {};
54         u32 crc = 0;
55
56         ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
57
58         ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
59                     ar->hw_params.name,
60                     ar->target_version,
61                     ar->chip_id,
62                     ar->id.subsystem_vendor, ar->id.subsystem_device);
63
64         ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
65                     IS_ENABLED(CONFIG_ATH10K_DEBUG),
66                     IS_ENABLED(CONFIG_ATH10K_DEBUGFS),
67                     IS_ENABLED(CONFIG_ATH10K_TRACING),
68                     IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED),
69                     IS_ENABLED(CONFIG_NL80211_TESTMODE));
70
71         firmware = ar->normal_mode_fw.fw_file.firmware;
72         if (firmware)
73                 crc = crc32_le(0, firmware->data, firmware->size);
74
75         ath10k_info(ar, "firmware ver %s api %d features %s crc32 %08x\n",
76                     ar->hw->wiphy->fw_version,
77                     ar->fw_api,
78                     fw_features,
79                     crc);
80 }
81
82 void ath10k_debug_print_board_info(struct ath10k *ar)
83 {
84         char boardinfo[100];
85         const struct firmware *board;
86         u32 crc;
87
88         if (ar->id.bmi_ids_valid)
89                 scnprintf(boardinfo, sizeof(boardinfo), "%d:%d",
90                           ar->id.bmi_chip_id, ar->id.bmi_board_id);
91         else
92                 scnprintf(boardinfo, sizeof(boardinfo), "N/A");
93
94         board = ar->normal_mode_fw.board;
95         if (!IS_ERR_OR_NULL(board))
96                 crc = crc32_le(0, board->data, board->size);
97         else
98                 crc = 0;
99
100         ath10k_info(ar, "board_file api %d bmi_id %s crc32 %08x",
101                     ar->bd_api,
102                     boardinfo,
103                     crc);
104 }
105
106 void ath10k_debug_print_boot_info(struct ath10k *ar)
107 {
108         ath10k_info(ar, "htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d\n",
109                     ar->htt.target_version_major,
110                     ar->htt.target_version_minor,
111                     ar->normal_mode_fw.fw_file.wmi_op_version,
112                     ar->normal_mode_fw.fw_file.htt_op_version,
113                     ath10k_cal_mode_str(ar->cal_mode),
114                     ar->max_num_stations,
115                     test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags),
116                     !test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags));
117 }
118
119 void ath10k_print_driver_info(struct ath10k *ar)
120 {
121         ath10k_debug_print_hwfw_info(ar);
122         ath10k_debug_print_board_info(ar);
123         ath10k_debug_print_boot_info(ar);
124 }
125 EXPORT_SYMBOL(ath10k_print_driver_info);
126
127 void ath10k_err(struct ath10k *ar, const char *fmt, ...)
128 {
129         struct va_format vaf = {
130                 .fmt = fmt,
131         };
132         va_list args;
133
134         va_start(args, fmt);
135         vaf.va = &args;
136         dev_err(ar->dev, "%pV", &vaf);
137         trace_ath10k_log_err(ar, &vaf);
138         va_end(args);
139 }
140 EXPORT_SYMBOL(ath10k_err);
141
142 void ath10k_warn(struct ath10k *ar, const char *fmt, ...)
143 {
144         struct va_format vaf = {
145                 .fmt = fmt,
146         };
147         va_list args;
148
149         va_start(args, fmt);
150         vaf.va = &args;
151         dev_warn_ratelimited(ar->dev, "%pV", &vaf);
152         trace_ath10k_log_warn(ar, &vaf);
153
154         va_end(args);
155 }
156 EXPORT_SYMBOL(ath10k_warn);
157
158 #ifdef CONFIG_ATH10K_DEBUGFS
159
160 static ssize_t ath10k_read_wmi_services(struct file *file,
161                                         char __user *user_buf,
162                                         size_t count, loff_t *ppos)
163 {
164         struct ath10k *ar = file->private_data;
165         char *buf;
166         size_t len = 0, buf_len = 8192;
167         const char *name;
168         ssize_t ret_cnt;
169         bool enabled;
170         int i;
171
172         buf = kzalloc(buf_len, GFP_KERNEL);
173         if (!buf)
174                 return -ENOMEM;
175
176         mutex_lock(&ar->conf_mutex);
177
178         spin_lock_bh(&ar->data_lock);
179         for (i = 0; i < WMI_SERVICE_MAX; i++) {
180                 enabled = test_bit(i, ar->wmi.svc_map);
181                 name = wmi_service_name(i);
182
183                 if (!name) {
184                         if (enabled)
185                                 len += scnprintf(buf + len, buf_len - len,
186                                                  "%-40s %s (bit %d)\n",
187                                                  "unknown", "enabled", i);
188
189                         continue;
190                 }
191
192                 len += scnprintf(buf + len, buf_len - len,
193                                  "%-40s %s\n",
194                                  name, enabled ? "enabled" : "-");
195         }
196         spin_unlock_bh(&ar->data_lock);
197
198         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
199
200         mutex_unlock(&ar->conf_mutex);
201
202         kfree(buf);
203         return ret_cnt;
204 }
205
206 static const struct file_operations fops_wmi_services = {
207         .read = ath10k_read_wmi_services,
208         .open = simple_open,
209         .owner = THIS_MODULE,
210         .llseek = default_llseek,
211 };
212
213 static void ath10k_fw_stats_pdevs_free(struct list_head *head)
214 {
215         struct ath10k_fw_stats_pdev *i, *tmp;
216
217         list_for_each_entry_safe(i, tmp, head, list) {
218                 list_del(&i->list);
219                 kfree(i);
220         }
221 }
222
223 static void ath10k_fw_stats_vdevs_free(struct list_head *head)
224 {
225         struct ath10k_fw_stats_vdev *i, *tmp;
226
227         list_for_each_entry_safe(i, tmp, head, list) {
228                 list_del(&i->list);
229                 kfree(i);
230         }
231 }
232
233 static void ath10k_fw_stats_peers_free(struct list_head *head)
234 {
235         struct ath10k_fw_stats_peer *i, *tmp;
236
237         list_for_each_entry_safe(i, tmp, head, list) {
238                 list_del(&i->list);
239                 kfree(i);
240         }
241 }
242
243 static void ath10k_fw_extd_stats_peers_free(struct list_head *head)
244 {
245         struct ath10k_fw_extd_stats_peer *i, *tmp;
246
247         list_for_each_entry_safe(i, tmp, head, list) {
248                 list_del(&i->list);
249                 kfree(i);
250         }
251 }
252
253 static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
254 {
255         spin_lock_bh(&ar->data_lock);
256         ar->debug.fw_stats_done = false;
257         ar->debug.fw_stats.extended = false;
258         ath10k_fw_stats_pdevs_free(&ar->debug.fw_stats.pdevs);
259         ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
260         ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
261         ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
262         spin_unlock_bh(&ar->data_lock);
263 }
264
265 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
266 {
267         struct ath10k_fw_stats stats = {};
268         bool is_start, is_started, is_end;
269         size_t num_peers;
270         size_t num_vdevs;
271         int ret;
272
273         INIT_LIST_HEAD(&stats.pdevs);
274         INIT_LIST_HEAD(&stats.vdevs);
275         INIT_LIST_HEAD(&stats.peers);
276         INIT_LIST_HEAD(&stats.peers_extd);
277
278         spin_lock_bh(&ar->data_lock);
279         ret = ath10k_wmi_pull_fw_stats(ar, skb, &stats);
280         if (ret) {
281                 ath10k_warn(ar, "failed to pull fw stats: %d\n", ret);
282                 goto free;
283         }
284
285         /* Stat data may exceed htc-wmi buffer limit. In such case firmware
286          * splits the stats data and delivers it in a ping-pong fashion of
287          * request cmd-update event.
288          *
289          * However there is no explicit end-of-data. Instead start-of-data is
290          * used as an implicit one. This works as follows:
291          *  a) discard stat update events until one with pdev stats is
292          *     delivered - this skips session started at end of (b)
293          *  b) consume stat update events until another one with pdev stats is
294          *     delivered which is treated as end-of-data and is itself discarded
295          */
296         if (ath10k_peer_stats_enabled(ar))
297                 ath10k_sta_update_rx_duration(ar, &stats);
298
299         if (ar->debug.fw_stats_done) {
300                 if (!ath10k_peer_stats_enabled(ar))
301                         ath10k_warn(ar, "received unsolicited stats update event\n");
302
303                 goto free;
304         }
305
306         num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
307         num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
308         is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
309                     !list_empty(&stats.pdevs));
310         is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
311                   !list_empty(&stats.pdevs));
312
313         if (is_start)
314                 list_splice_tail_init(&stats.pdevs, &ar->debug.fw_stats.pdevs);
315
316         if (is_end)
317                 ar->debug.fw_stats_done = true;
318
319         is_started = !list_empty(&ar->debug.fw_stats.pdevs);
320
321         if (is_started && !is_end) {
322                 if (num_peers >= ATH10K_MAX_NUM_PEER_IDS) {
323                         /* Although this is unlikely impose a sane limit to
324                          * prevent firmware from DoS-ing the host.
325                          */
326                         ath10k_fw_stats_peers_free(&ar->debug.fw_stats.peers);
327                         ath10k_fw_extd_stats_peers_free(&ar->debug.fw_stats.peers_extd);
328                         ath10k_warn(ar, "dropping fw peer stats\n");
329                         goto free;
330                 }
331
332                 if (num_vdevs >= BITS_PER_LONG) {
333                         ath10k_fw_stats_vdevs_free(&ar->debug.fw_stats.vdevs);
334                         ath10k_warn(ar, "dropping fw vdev stats\n");
335                         goto free;
336                 }
337
338                 if (!list_empty(&stats.peers))
339                         list_splice_tail_init(&stats.peers_extd,
340                                               &ar->debug.fw_stats.peers_extd);
341
342                 list_splice_tail_init(&stats.peers, &ar->debug.fw_stats.peers);
343                 list_splice_tail_init(&stats.vdevs, &ar->debug.fw_stats.vdevs);
344         }
345
346         complete(&ar->debug.fw_stats_complete);
347
348 free:
349         /* In some cases lists have been spliced and cleared. Free up
350          * resources if that is not the case.
351          */
352         ath10k_fw_stats_pdevs_free(&stats.pdevs);
353         ath10k_fw_stats_vdevs_free(&stats.vdevs);
354         ath10k_fw_stats_peers_free(&stats.peers);
355         ath10k_fw_extd_stats_peers_free(&stats.peers_extd);
356
357         spin_unlock_bh(&ar->data_lock);
358 }
359
360 static int ath10k_debug_fw_stats_request(struct ath10k *ar)
361 {
362         unsigned long timeout, time_left;
363         int ret;
364
365         lockdep_assert_held(&ar->conf_mutex);
366
367         timeout = jiffies + msecs_to_jiffies(1 * HZ);
368
369         ath10k_debug_fw_stats_reset(ar);
370
371         for (;;) {
372                 if (time_after(jiffies, timeout))
373                         return -ETIMEDOUT;
374
375                 reinit_completion(&ar->debug.fw_stats_complete);
376
377                 ret = ath10k_wmi_request_stats(ar, ar->fw_stats_req_mask);
378                 if (ret) {
379                         ath10k_warn(ar, "could not request stats (%d)\n", ret);
380                         return ret;
381                 }
382
383                 time_left =
384                 wait_for_completion_timeout(&ar->debug.fw_stats_complete,
385                                             1 * HZ);
386                 if (!time_left)
387                         return -ETIMEDOUT;
388
389                 spin_lock_bh(&ar->data_lock);
390                 if (ar->debug.fw_stats_done) {
391                         spin_unlock_bh(&ar->data_lock);
392                         break;
393                 }
394                 spin_unlock_bh(&ar->data_lock);
395         }
396
397         return 0;
398 }
399
400 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
401 {
402         struct ath10k *ar = inode->i_private;
403         void *buf = NULL;
404         int ret;
405
406         mutex_lock(&ar->conf_mutex);
407
408         if (ar->state != ATH10K_STATE_ON) {
409                 ret = -ENETDOWN;
410                 goto err_unlock;
411         }
412
413         buf = vmalloc(ATH10K_FW_STATS_BUF_SIZE);
414         if (!buf) {
415                 ret = -ENOMEM;
416                 goto err_unlock;
417         }
418
419         ret = ath10k_debug_fw_stats_request(ar);
420         if (ret) {
421                 ath10k_warn(ar, "failed to request fw stats: %d\n", ret);
422                 goto err_free;
423         }
424
425         ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
426         if (ret) {
427                 ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
428                 goto err_free;
429         }
430
431         file->private_data = buf;
432
433         mutex_unlock(&ar->conf_mutex);
434         return 0;
435
436 err_free:
437         vfree(buf);
438
439 err_unlock:
440         mutex_unlock(&ar->conf_mutex);
441         return ret;
442 }
443
444 static int ath10k_fw_stats_release(struct inode *inode, struct file *file)
445 {
446         vfree(file->private_data);
447
448         return 0;
449 }
450
451 static ssize_t ath10k_fw_stats_read(struct file *file, char __user *user_buf,
452                                     size_t count, loff_t *ppos)
453 {
454         const char *buf = file->private_data;
455         size_t len = strlen(buf);
456
457         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
458 }
459
460 static const struct file_operations fops_fw_stats = {
461         .open = ath10k_fw_stats_open,
462         .release = ath10k_fw_stats_release,
463         .read = ath10k_fw_stats_read,
464         .owner = THIS_MODULE,
465         .llseek = default_llseek,
466 };
467
468 static ssize_t ath10k_debug_fw_reset_stats_read(struct file *file,
469                                                 char __user *user_buf,
470                                                 size_t count, loff_t *ppos)
471 {
472         struct ath10k *ar = file->private_data;
473         int ret;
474         size_t len = 0, buf_len = 500;
475         char *buf;
476
477         buf = kmalloc(buf_len, GFP_KERNEL);
478         if (!buf)
479                 return -ENOMEM;
480
481         spin_lock_bh(&ar->data_lock);
482
483         len += scnprintf(buf + len, buf_len - len,
484                          "fw_crash_counter\t\t%d\n", ar->stats.fw_crash_counter);
485         len += scnprintf(buf + len, buf_len - len,
486                          "fw_warm_reset_counter\t\t%d\n",
487                          ar->stats.fw_warm_reset_counter);
488         len += scnprintf(buf + len, buf_len - len,
489                          "fw_cold_reset_counter\t\t%d\n",
490                          ar->stats.fw_cold_reset_counter);
491
492         spin_unlock_bh(&ar->data_lock);
493
494         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
495
496         kfree(buf);
497
498         return ret;
499 }
500
501 static const struct file_operations fops_fw_reset_stats = {
502         .open = simple_open,
503         .read = ath10k_debug_fw_reset_stats_read,
504         .owner = THIS_MODULE,
505         .llseek = default_llseek,
506 };
507
508 /* This is a clean assert crash in firmware. */
509 static int ath10k_debug_fw_assert(struct ath10k *ar)
510 {
511         struct wmi_vdev_install_key_cmd *cmd;
512         struct sk_buff *skb;
513
514         skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd) + 16);
515         if (!skb)
516                 return -ENOMEM;
517
518         cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
519         memset(cmd, 0, sizeof(*cmd));
520
521         /* big enough number so that firmware asserts */
522         cmd->vdev_id = __cpu_to_le32(0x7ffe);
523
524         return ath10k_wmi_cmd_send(ar, skb,
525                                    ar->wmi.cmd->vdev_install_key_cmdid);
526 }
527
528 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
529                                              char __user *user_buf,
530                                              size_t count, loff_t *ppos)
531 {
532         const char buf[] =
533                 "To simulate firmware crash write one of the keywords to this file:\n"
534                 "`soft` - this will send WMI_FORCE_FW_HANG_ASSERT to firmware if FW supports that command.\n"
535                 "`hard` - this will send to firmware command with illegal parameters causing firmware crash.\n"
536                 "`assert` - this will send special illegal parameter to firmware to cause assert failure and crash.\n"
537                 "`hw-restart` - this will simply queue hw restart without fw/hw actually crashing.\n";
538
539         return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
540 }
541
542 /* Simulate firmware crash:
543  * 'soft': Call wmi command causing firmware hang. This firmware hang is
544  * recoverable by warm firmware reset.
545  * 'hard': Force firmware crash by setting any vdev parameter for not allowed
546  * vdev id. This is hard firmware crash because it is recoverable only by cold
547  * firmware reset.
548  */
549 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
550                                               const char __user *user_buf,
551                                               size_t count, loff_t *ppos)
552 {
553         struct ath10k *ar = file->private_data;
554         char buf[32] = {0};
555         ssize_t rc;
556         int ret;
557
558         /* filter partial writes and invalid commands */
559         if (*ppos != 0 || count >= sizeof(buf) || count == 0)
560                 return -EINVAL;
561
562         rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
563         if (rc < 0)
564                 return rc;
565
566         /* drop the possible '\n' from the end */
567         if (buf[*ppos - 1] == '\n')
568                 buf[*ppos - 1] = '\0';
569
570         mutex_lock(&ar->conf_mutex);
571
572         if (ar->state != ATH10K_STATE_ON &&
573             ar->state != ATH10K_STATE_RESTARTED) {
574                 ret = -ENETDOWN;
575                 goto exit;
576         }
577
578         if (!strcmp(buf, "soft")) {
579                 ath10k_info(ar, "simulating soft firmware crash\n");
580                 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
581         } else if (!strcmp(buf, "hard")) {
582                 ath10k_info(ar, "simulating hard firmware crash\n");
583                 /* 0x7fff is vdev id, and it is always out of range for all
584                  * firmware variants in order to force a firmware crash.
585                  */
586                 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
587                                                 ar->wmi.vdev_param->rts_threshold,
588                                                 0);
589         } else if (!strcmp(buf, "assert")) {
590                 ath10k_info(ar, "simulating firmware assert crash\n");
591                 ret = ath10k_debug_fw_assert(ar);
592         } else if (!strcmp(buf, "hw-restart")) {
593                 ath10k_info(ar, "user requested hw restart\n");
594                 queue_work(ar->workqueue, &ar->restart_work);
595                 ret = 0;
596         } else {
597                 ret = -EINVAL;
598                 goto exit;
599         }
600
601         if (ret) {
602                 ath10k_warn(ar, "failed to simulate firmware crash: %d\n", ret);
603                 goto exit;
604         }
605
606         ret = count;
607
608 exit:
609         mutex_unlock(&ar->conf_mutex);
610         return ret;
611 }
612
613 static const struct file_operations fops_simulate_fw_crash = {
614         .read = ath10k_read_simulate_fw_crash,
615         .write = ath10k_write_simulate_fw_crash,
616         .open = simple_open,
617         .owner = THIS_MODULE,
618         .llseek = default_llseek,
619 };
620
621 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
622                                    size_t count, loff_t *ppos)
623 {
624         struct ath10k *ar = file->private_data;
625         size_t len;
626         char buf[50];
627
628         len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
629
630         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
631 }
632
633 static const struct file_operations fops_chip_id = {
634         .read = ath10k_read_chip_id,
635         .open = simple_open,
636         .owner = THIS_MODULE,
637         .llseek = default_llseek,
638 };
639
640 static ssize_t ath10k_reg_addr_read(struct file *file,
641                                     char __user *user_buf,
642                                     size_t count, loff_t *ppos)
643 {
644         struct ath10k *ar = file->private_data;
645         u8 buf[32];
646         size_t len = 0;
647         u32 reg_addr;
648
649         mutex_lock(&ar->conf_mutex);
650         reg_addr = ar->debug.reg_addr;
651         mutex_unlock(&ar->conf_mutex);
652
653         len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n", reg_addr);
654
655         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
656 }
657
658 static ssize_t ath10k_reg_addr_write(struct file *file,
659                                      const char __user *user_buf,
660                                      size_t count, loff_t *ppos)
661 {
662         struct ath10k *ar = file->private_data;
663         u32 reg_addr;
664         int ret;
665
666         ret = kstrtou32_from_user(user_buf, count, 0, &reg_addr);
667         if (ret)
668                 return ret;
669
670         if (!IS_ALIGNED(reg_addr, 4))
671                 return -EFAULT;
672
673         mutex_lock(&ar->conf_mutex);
674         ar->debug.reg_addr = reg_addr;
675         mutex_unlock(&ar->conf_mutex);
676
677         return count;
678 }
679
680 static const struct file_operations fops_reg_addr = {
681         .read = ath10k_reg_addr_read,
682         .write = ath10k_reg_addr_write,
683         .open = simple_open,
684         .owner = THIS_MODULE,
685         .llseek = default_llseek,
686 };
687
688 static ssize_t ath10k_reg_value_read(struct file *file,
689                                      char __user *user_buf,
690                                      size_t count, loff_t *ppos)
691 {
692         struct ath10k *ar = file->private_data;
693         u8 buf[48];
694         size_t len;
695         u32 reg_addr, reg_val;
696         int ret;
697
698         mutex_lock(&ar->conf_mutex);
699
700         if (ar->state != ATH10K_STATE_ON &&
701             ar->state != ATH10K_STATE_UTF) {
702                 ret = -ENETDOWN;
703                 goto exit;
704         }
705
706         reg_addr = ar->debug.reg_addr;
707
708         reg_val = ath10k_hif_read32(ar, reg_addr);
709         len = scnprintf(buf, sizeof(buf), "0x%08x:0x%08x\n", reg_addr, reg_val);
710
711         ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
712
713 exit:
714         mutex_unlock(&ar->conf_mutex);
715
716         return ret;
717 }
718
719 static ssize_t ath10k_reg_value_write(struct file *file,
720                                       const char __user *user_buf,
721                                       size_t count, loff_t *ppos)
722 {
723         struct ath10k *ar = file->private_data;
724         u32 reg_addr, reg_val;
725         int ret;
726
727         mutex_lock(&ar->conf_mutex);
728
729         if (ar->state != ATH10K_STATE_ON &&
730             ar->state != ATH10K_STATE_UTF) {
731                 ret = -ENETDOWN;
732                 goto exit;
733         }
734
735         reg_addr = ar->debug.reg_addr;
736
737         ret = kstrtou32_from_user(user_buf, count, 0, &reg_val);
738         if (ret)
739                 goto exit;
740
741         ath10k_hif_write32(ar, reg_addr, reg_val);
742
743         ret = count;
744
745 exit:
746         mutex_unlock(&ar->conf_mutex);
747
748         return ret;
749 }
750
751 static const struct file_operations fops_reg_value = {
752         .read = ath10k_reg_value_read,
753         .write = ath10k_reg_value_write,
754         .open = simple_open,
755         .owner = THIS_MODULE,
756         .llseek = default_llseek,
757 };
758
759 static ssize_t ath10k_mem_value_read(struct file *file,
760                                      char __user *user_buf,
761                                      size_t count, loff_t *ppos)
762 {
763         struct ath10k *ar = file->private_data;
764         u8 *buf;
765         int ret;
766
767         if (*ppos < 0)
768                 return -EINVAL;
769
770         if (!count)
771                 return 0;
772
773         mutex_lock(&ar->conf_mutex);
774
775         buf = vmalloc(count);
776         if (!buf) {
777                 ret = -ENOMEM;
778                 goto exit;
779         }
780
781         if (ar->state != ATH10K_STATE_ON &&
782             ar->state != ATH10K_STATE_UTF) {
783                 ret = -ENETDOWN;
784                 goto exit;
785         }
786
787         ret = ath10k_hif_diag_read(ar, *ppos, buf, count);
788         if (ret) {
789                 ath10k_warn(ar, "failed to read address 0x%08x via diagnose window fnrom debugfs: %d\n",
790                             (u32)(*ppos), ret);
791                 goto exit;
792         }
793
794         ret = copy_to_user(user_buf, buf, count);
795         if (ret) {
796                 ret = -EFAULT;
797                 goto exit;
798         }
799
800         count -= ret;
801         *ppos += count;
802         ret = count;
803
804 exit:
805         vfree(buf);
806         mutex_unlock(&ar->conf_mutex);
807
808         return ret;
809 }
810
811 static ssize_t ath10k_mem_value_write(struct file *file,
812                                       const char __user *user_buf,
813                                       size_t count, loff_t *ppos)
814 {
815         struct ath10k *ar = file->private_data;
816         u8 *buf;
817         int ret;
818
819         if (*ppos < 0)
820                 return -EINVAL;
821
822         if (!count)
823                 return 0;
824
825         mutex_lock(&ar->conf_mutex);
826
827         buf = vmalloc(count);
828         if (!buf) {
829                 ret = -ENOMEM;
830                 goto exit;
831         }
832
833         if (ar->state != ATH10K_STATE_ON &&
834             ar->state != ATH10K_STATE_UTF) {
835                 ret = -ENETDOWN;
836                 goto exit;
837         }
838
839         ret = copy_from_user(buf, user_buf, count);
840         if (ret) {
841                 ret = -EFAULT;
842                 goto exit;
843         }
844
845         ret = ath10k_hif_diag_write(ar, *ppos, buf, count);
846         if (ret) {
847                 ath10k_warn(ar, "failed to write address 0x%08x via diagnose window from debugfs: %d\n",
848                             (u32)(*ppos), ret);
849                 goto exit;
850         }
851
852         *ppos += count;
853         ret = count;
854
855 exit:
856         vfree(buf);
857         mutex_unlock(&ar->conf_mutex);
858
859         return ret;
860 }
861
862 static const struct file_operations fops_mem_value = {
863         .read = ath10k_mem_value_read,
864         .write = ath10k_mem_value_write,
865         .open = simple_open,
866         .owner = THIS_MODULE,
867         .llseek = default_llseek,
868 };
869
870 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
871 {
872         u64 cookie;
873         int ret;
874
875         lockdep_assert_held(&ar->conf_mutex);
876
877         if (ar->debug.htt_stats_mask == 0)
878                 /* htt stats are disabled */
879                 return 0;
880
881         if (ar->state != ATH10K_STATE_ON)
882                 return 0;
883
884         cookie = get_jiffies_64();
885
886         ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
887                                        cookie);
888         if (ret) {
889                 ath10k_warn(ar, "failed to send htt stats request: %d\n", ret);
890                 return ret;
891         }
892
893         queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
894                            msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
895
896         return 0;
897 }
898
899 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
900 {
901         struct ath10k *ar = container_of(work, struct ath10k,
902                                          debug.htt_stats_dwork.work);
903
904         mutex_lock(&ar->conf_mutex);
905
906         ath10k_debug_htt_stats_req(ar);
907
908         mutex_unlock(&ar->conf_mutex);
909 }
910
911 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
912                                           char __user *user_buf,
913                                           size_t count, loff_t *ppos)
914 {
915         struct ath10k *ar = file->private_data;
916         char buf[32];
917         size_t len;
918
919         len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
920
921         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
922 }
923
924 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
925                                            const char __user *user_buf,
926                                            size_t count, loff_t *ppos)
927 {
928         struct ath10k *ar = file->private_data;
929         unsigned long mask;
930         int ret;
931
932         ret = kstrtoul_from_user(user_buf, count, 0, &mask);
933         if (ret)
934                 return ret;
935
936         /* max 8 bit masks (for now) */
937         if (mask > 0xff)
938                 return -E2BIG;
939
940         mutex_lock(&ar->conf_mutex);
941
942         ar->debug.htt_stats_mask = mask;
943
944         ret = ath10k_debug_htt_stats_req(ar);
945         if (ret)
946                 goto out;
947
948         ret = count;
949
950 out:
951         mutex_unlock(&ar->conf_mutex);
952
953         return ret;
954 }
955
956 static const struct file_operations fops_htt_stats_mask = {
957         .read = ath10k_read_htt_stats_mask,
958         .write = ath10k_write_htt_stats_mask,
959         .open = simple_open,
960         .owner = THIS_MODULE,
961         .llseek = default_llseek,
962 };
963
964 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
965                                                char __user *user_buf,
966                                                size_t count, loff_t *ppos)
967 {
968         struct ath10k *ar = file->private_data;
969         char buf[64];
970         u8 amsdu, ampdu;
971         size_t len;
972
973         mutex_lock(&ar->conf_mutex);
974
975         amsdu = ar->htt.max_num_amsdu;
976         ampdu = ar->htt.max_num_ampdu;
977         mutex_unlock(&ar->conf_mutex);
978
979         len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
980
981         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
982 }
983
984 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
985                                                 const char __user *user_buf,
986                                                 size_t count, loff_t *ppos)
987 {
988         struct ath10k *ar = file->private_data;
989         int res;
990         char buf[64];
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, &ampdu);
999
1000         if (res != 2)
1001                 return -EINVAL;
1002
1003         mutex_lock(&ar->conf_mutex);
1004
1005         res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
1006         if (res)
1007                 goto out;
1008
1009         res = count;
1010         ar->htt.max_num_amsdu = amsdu;
1011         ar->htt.max_num_ampdu = ampdu;
1012
1013 out:
1014         mutex_unlock(&ar->conf_mutex);
1015         return res;
1016 }
1017
1018 static const struct file_operations fops_htt_max_amsdu_ampdu = {
1019         .read = ath10k_read_htt_max_amsdu_ampdu,
1020         .write = ath10k_write_htt_max_amsdu_ampdu,
1021         .open = simple_open,
1022         .owner = THIS_MODULE,
1023         .llseek = default_llseek,
1024 };
1025
1026 static ssize_t ath10k_read_fw_dbglog(struct file *file,
1027                                      char __user *user_buf,
1028                                      size_t count, loff_t *ppos)
1029 {
1030         struct ath10k *ar = file->private_data;
1031         size_t len;
1032         char buf[96];
1033
1034         len = scnprintf(buf, sizeof(buf), "0x%16llx %u\n",
1035                         ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
1036
1037         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1038 }
1039
1040 static ssize_t ath10k_write_fw_dbglog(struct file *file,
1041                                       const char __user *user_buf,
1042                                       size_t count, loff_t *ppos)
1043 {
1044         struct ath10k *ar = file->private_data;
1045         int ret;
1046         char buf[96];
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
1081 exit:
1082         mutex_unlock(&ar->conf_mutex);
1083
1084         return ret;
1085 }
1086
1087 /* TODO:  Would be nice to always support ethtool stats, would need to
1088  * move the stats storage out of ath10k_debug, or always have ath10k_debug
1089  * struct available..
1090  */
1091
1092 /* This generally cooresponds to the debugfs fw_stats file */
1093 static const char ath10k_gstrings_stats[][ETH_GSTRING_LEN] = {
1094         "tx_pkts_nic",
1095         "tx_bytes_nic",
1096         "rx_pkts_nic",
1097         "rx_bytes_nic",
1098         "d_noise_floor",
1099         "d_cycle_count",
1100         "d_phy_error",
1101         "d_rts_bad",
1102         "d_rts_good",
1103         "d_tx_power", /* in .5 dbM I think */
1104         "d_rx_crc_err", /* fcs_bad */
1105         "d_no_beacon",
1106         "d_tx_mpdus_queued",
1107         "d_tx_msdu_queued",
1108         "d_tx_msdu_dropped",
1109         "d_local_enqued",
1110         "d_local_freed",
1111         "d_tx_ppdu_hw_queued",
1112         "d_tx_ppdu_reaped",
1113         "d_tx_fifo_underrun",
1114         "d_tx_ppdu_abort",
1115         "d_tx_mpdu_requed",
1116         "d_tx_excessive_retries",
1117         "d_tx_hw_rate",
1118         "d_tx_dropped_sw_retries",
1119         "d_tx_illegal_rate",
1120         "d_tx_continuous_xretries",
1121         "d_tx_timeout",
1122         "d_tx_mpdu_txop_limit",
1123         "d_pdev_resets",
1124         "d_rx_mid_ppdu_route_change",
1125         "d_rx_status",
1126         "d_rx_extra_frags_ring0",
1127         "d_rx_extra_frags_ring1",
1128         "d_rx_extra_frags_ring2",
1129         "d_rx_extra_frags_ring3",
1130         "d_rx_msdu_htt",
1131         "d_rx_mpdu_htt",
1132         "d_rx_msdu_stack",
1133         "d_rx_mpdu_stack",
1134         "d_rx_phy_err",
1135         "d_rx_phy_err_drops",
1136         "d_rx_mpdu_errors", /* FCS, MIC, ENC */
1137         "d_fw_crash_count",
1138         "d_fw_warm_reset_count",
1139         "d_fw_cold_reset_count",
1140 };
1141
1142 #define ATH10K_SSTATS_LEN ARRAY_SIZE(ath10k_gstrings_stats)
1143
1144 void ath10k_debug_get_et_strings(struct ieee80211_hw *hw,
1145                                  struct ieee80211_vif *vif,
1146                                  u32 sset, u8 *data)
1147 {
1148         if (sset == ETH_SS_STATS)
1149                 memcpy(data, *ath10k_gstrings_stats,
1150                        sizeof(ath10k_gstrings_stats));
1151 }
1152
1153 int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
1154                                    struct ieee80211_vif *vif, int sset)
1155 {
1156         if (sset == ETH_SS_STATS)
1157                 return ATH10K_SSTATS_LEN;
1158
1159         return 0;
1160 }
1161
1162 void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
1163                                struct ieee80211_vif *vif,
1164                                struct ethtool_stats *stats, u64 *data)
1165 {
1166         struct ath10k *ar = hw->priv;
1167         static const struct ath10k_fw_stats_pdev zero_stats = {};
1168         const struct ath10k_fw_stats_pdev *pdev_stats;
1169         int i = 0, ret;
1170
1171         mutex_lock(&ar->conf_mutex);
1172
1173         if (ar->state == ATH10K_STATE_ON) {
1174                 ret = ath10k_debug_fw_stats_request(ar);
1175                 if (ret) {
1176                         /* just print a warning and try to use older results */
1177                         ath10k_warn(ar,
1178                                     "failed to get fw stats for ethtool: %d\n",
1179                                     ret);
1180                 }
1181         }
1182
1183         pdev_stats = list_first_entry_or_null(&ar->debug.fw_stats.pdevs,
1184                                               struct ath10k_fw_stats_pdev,
1185                                               list);
1186         if (!pdev_stats) {
1187                 /* no results available so just return zeroes */
1188                 pdev_stats = &zero_stats;
1189         }
1190
1191         spin_lock_bh(&ar->data_lock);
1192
1193         data[i++] = pdev_stats->hw_reaped; /* ppdu reaped */
1194         data[i++] = 0; /* tx bytes */
1195         data[i++] = pdev_stats->htt_mpdus;
1196         data[i++] = 0; /* rx bytes */
1197         data[i++] = pdev_stats->ch_noise_floor;
1198         data[i++] = pdev_stats->cycle_count;
1199         data[i++] = pdev_stats->phy_err_count;
1200         data[i++] = pdev_stats->rts_bad;
1201         data[i++] = pdev_stats->rts_good;
1202         data[i++] = pdev_stats->chan_tx_power;
1203         data[i++] = pdev_stats->fcs_bad;
1204         data[i++] = pdev_stats->no_beacons;
1205         data[i++] = pdev_stats->mpdu_enqued;
1206         data[i++] = pdev_stats->msdu_enqued;
1207         data[i++] = pdev_stats->wmm_drop;
1208         data[i++] = pdev_stats->local_enqued;
1209         data[i++] = pdev_stats->local_freed;
1210         data[i++] = pdev_stats->hw_queued;
1211         data[i++] = pdev_stats->hw_reaped;
1212         data[i++] = pdev_stats->underrun;
1213         data[i++] = pdev_stats->tx_abort;
1214         data[i++] = pdev_stats->mpdus_requed;
1215         data[i++] = pdev_stats->tx_ko;
1216         data[i++] = pdev_stats->data_rc;
1217         data[i++] = pdev_stats->sw_retry_failure;
1218         data[i++] = pdev_stats->illgl_rate_phy_err;
1219         data[i++] = pdev_stats->pdev_cont_xretry;
1220         data[i++] = pdev_stats->pdev_tx_timeout;
1221         data[i++] = pdev_stats->txop_ovf;
1222         data[i++] = pdev_stats->pdev_resets;
1223         data[i++] = pdev_stats->mid_ppdu_route_change;
1224         data[i++] = pdev_stats->status_rcvd;
1225         data[i++] = pdev_stats->r0_frags;
1226         data[i++] = pdev_stats->r1_frags;
1227         data[i++] = pdev_stats->r2_frags;
1228         data[i++] = pdev_stats->r3_frags;
1229         data[i++] = pdev_stats->htt_msdus;
1230         data[i++] = pdev_stats->htt_mpdus;
1231         data[i++] = pdev_stats->loc_msdus;
1232         data[i++] = pdev_stats->loc_mpdus;
1233         data[i++] = pdev_stats->phy_errs;
1234         data[i++] = pdev_stats->phy_err_drop;
1235         data[i++] = pdev_stats->mpdu_errs;
1236         data[i++] = ar->stats.fw_crash_counter;
1237         data[i++] = ar->stats.fw_warm_reset_counter;
1238         data[i++] = ar->stats.fw_cold_reset_counter;
1239
1240         spin_unlock_bh(&ar->data_lock);
1241
1242         mutex_unlock(&ar->conf_mutex);
1243
1244         WARN_ON(i != ATH10K_SSTATS_LEN);
1245 }
1246
1247 static const struct file_operations fops_fw_dbglog = {
1248         .read = ath10k_read_fw_dbglog,
1249         .write = ath10k_write_fw_dbglog,
1250         .open = simple_open,
1251         .owner = THIS_MODULE,
1252         .llseek = default_llseek,
1253 };
1254
1255 static int ath10k_debug_cal_data_fetch(struct ath10k *ar)
1256 {
1257         u32 hi_addr;
1258         __le32 addr;
1259         int ret;
1260
1261         lockdep_assert_held(&ar->conf_mutex);
1262
1263         if (WARN_ON(ar->hw_params.cal_data_len > ATH10K_DEBUG_CAL_DATA_LEN))
1264                 return -EINVAL;
1265
1266         hi_addr = host_interest_item_address(HI_ITEM(hi_board_data));
1267
1268         ret = ath10k_hif_diag_read(ar, hi_addr, &addr, sizeof(addr));
1269         if (ret) {
1270                 ath10k_warn(ar, "failed to read hi_board_data address: %d\n",
1271                             ret);
1272                 return ret;
1273         }
1274
1275         ret = ath10k_hif_diag_read(ar, le32_to_cpu(addr), ar->debug.cal_data,
1276                                    ar->hw_params.cal_data_len);
1277         if (ret) {
1278                 ath10k_warn(ar, "failed to read calibration data: %d\n", ret);
1279                 return ret;
1280         }
1281
1282         return 0;
1283 }
1284
1285 static int ath10k_debug_cal_data_open(struct inode *inode, struct file *file)
1286 {
1287         struct ath10k *ar = inode->i_private;
1288
1289         mutex_lock(&ar->conf_mutex);
1290
1291         if (ar->state == ATH10K_STATE_ON ||
1292             ar->state == ATH10K_STATE_UTF) {
1293                 ath10k_debug_cal_data_fetch(ar);
1294         }
1295
1296         file->private_data = ar;
1297         mutex_unlock(&ar->conf_mutex);
1298
1299         return 0;
1300 }
1301
1302 static ssize_t ath10k_debug_cal_data_read(struct file *file,
1303                                           char __user *user_buf,
1304                                           size_t count, loff_t *ppos)
1305 {
1306         struct ath10k *ar = file->private_data;
1307
1308         mutex_lock(&ar->conf_mutex);
1309
1310         count = simple_read_from_buffer(user_buf, count, ppos,
1311                                         ar->debug.cal_data,
1312                                         ar->hw_params.cal_data_len);
1313
1314         mutex_unlock(&ar->conf_mutex);
1315
1316         return count;
1317 }
1318
1319 static ssize_t ath10k_write_ani_enable(struct file *file,
1320                                        const char __user *user_buf,
1321                                        size_t count, loff_t *ppos)
1322 {
1323         struct ath10k *ar = file->private_data;
1324         int ret;
1325         u8 enable;
1326
1327         if (kstrtou8_from_user(user_buf, count, 0, &enable))
1328                 return -EINVAL;
1329
1330         mutex_lock(&ar->conf_mutex);
1331
1332         if (ar->ani_enabled == enable) {
1333                 ret = count;
1334                 goto exit;
1335         }
1336
1337         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->ani_enable,
1338                                         enable);
1339         if (ret) {
1340                 ath10k_warn(ar, "ani_enable failed from debugfs: %d\n", ret);
1341                 goto exit;
1342         }
1343         ar->ani_enabled = enable;
1344
1345         ret = count;
1346
1347 exit:
1348         mutex_unlock(&ar->conf_mutex);
1349
1350         return ret;
1351 }
1352
1353 static ssize_t ath10k_read_ani_enable(struct file *file, char __user *user_buf,
1354                                       size_t count, loff_t *ppos)
1355 {
1356         struct ath10k *ar = file->private_data;
1357         size_t len;
1358         char buf[32];
1359
1360         len = scnprintf(buf, sizeof(buf), "%d\n", ar->ani_enabled);
1361
1362         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1363 }
1364
1365 static const struct file_operations fops_ani_enable = {
1366         .read = ath10k_read_ani_enable,
1367         .write = ath10k_write_ani_enable,
1368         .open = simple_open,
1369         .owner = THIS_MODULE,
1370         .llseek = default_llseek,
1371 };
1372
1373 static const struct file_operations fops_cal_data = {
1374         .open = ath10k_debug_cal_data_open,
1375         .read = ath10k_debug_cal_data_read,
1376         .owner = THIS_MODULE,
1377         .llseek = default_llseek,
1378 };
1379
1380 static ssize_t ath10k_read_nf_cal_period(struct file *file,
1381                                          char __user *user_buf,
1382                                          size_t count, loff_t *ppos)
1383 {
1384         struct ath10k *ar = file->private_data;
1385         size_t len;
1386         char buf[32];
1387
1388         len = scnprintf(buf, sizeof(buf), "%d\n", ar->debug.nf_cal_period);
1389
1390         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1391 }
1392
1393 static ssize_t ath10k_write_nf_cal_period(struct file *file,
1394                                           const char __user *user_buf,
1395                                           size_t count, loff_t *ppos)
1396 {
1397         struct ath10k *ar = file->private_data;
1398         unsigned long period;
1399         int ret;
1400
1401         ret = kstrtoul_from_user(user_buf, count, 0, &period);
1402         if (ret)
1403                 return ret;
1404
1405         if (period > WMI_PDEV_PARAM_CAL_PERIOD_MAX)
1406                 return -EINVAL;
1407
1408         /* there's no way to switch back to the firmware default */
1409         if (period == 0)
1410                 return -EINVAL;
1411
1412         mutex_lock(&ar->conf_mutex);
1413
1414         ar->debug.nf_cal_period = period;
1415
1416         if (ar->state != ATH10K_STATE_ON) {
1417                 /* firmware is not running, nothing else to do */
1418                 ret = count;
1419                 goto exit;
1420         }
1421
1422         ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->cal_period,
1423                                         ar->debug.nf_cal_period);
1424         if (ret) {
1425                 ath10k_warn(ar, "cal period cfg failed from debugfs: %d\n",
1426                             ret);
1427                 goto exit;
1428         }
1429
1430         ret = count;
1431
1432 exit:
1433         mutex_unlock(&ar->conf_mutex);
1434
1435         return ret;
1436 }
1437
1438 static const struct file_operations fops_nf_cal_period = {
1439         .read = ath10k_read_nf_cal_period,
1440         .write = ath10k_write_nf_cal_period,
1441         .open = simple_open,
1442         .owner = THIS_MODULE,
1443         .llseek = default_llseek,
1444 };
1445
1446 #define ATH10K_TPC_CONFIG_BUF_SIZE      (1024 * 1024)
1447
1448 static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
1449 {
1450         int ret;
1451         unsigned long time_left;
1452
1453         lockdep_assert_held(&ar->conf_mutex);
1454
1455         reinit_completion(&ar->debug.tpc_complete);
1456
1457         ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
1458         if (ret) {
1459                 ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
1460                 return ret;
1461         }
1462
1463         time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
1464                                                 1 * HZ);
1465         if (time_left == 0)
1466                 return -ETIMEDOUT;
1467
1468         return 0;
1469 }
1470
1471 void ath10k_debug_tpc_stats_process(struct ath10k *ar,
1472                                     struct ath10k_tpc_stats *tpc_stats)
1473 {
1474         spin_lock_bh(&ar->data_lock);
1475
1476         kfree(ar->debug.tpc_stats);
1477         ar->debug.tpc_stats = tpc_stats;
1478         complete(&ar->debug.tpc_complete);
1479
1480         spin_unlock_bh(&ar->data_lock);
1481 }
1482
1483 static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
1484                                    unsigned int j, char *buf, size_t *len)
1485 {
1486         int i;
1487         size_t buf_len;
1488         static const char table_str[][5] = { "CDD",
1489                                              "STBC",
1490                                              "TXBF" };
1491         static const char pream_str[][6] = { "CCK",
1492                                              "OFDM",
1493                                              "HT20",
1494                                              "HT40",
1495                                              "VHT20",
1496                                              "VHT40",
1497                                              "VHT80",
1498                                              "HTCUP" };
1499
1500         buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1501         *len += scnprintf(buf + *len, buf_len - *len,
1502                           "********************************\n");
1503         *len += scnprintf(buf + *len, buf_len - *len,
1504                           "******************* %s POWER TABLE ****************\n",
1505                           table_str[j]);
1506         *len += scnprintf(buf + *len, buf_len - *len,
1507                           "********************************\n");
1508         *len += scnprintf(buf + *len, buf_len - *len,
1509                           "No.  Preamble Rate_code tpc_value1 tpc_value2 tpc_value3\n");
1510
1511         for (i = 0; i < tpc_stats->rate_max; i++) {
1512                 *len += scnprintf(buf + *len, buf_len - *len,
1513                                   "%8d %s 0x%2x %s\n", i,
1514                                   pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
1515                                   tpc_stats->tpc_table[j].rate_code[i],
1516                                   tpc_stats->tpc_table[j].tpc_value[i]);
1517         }
1518
1519         *len += scnprintf(buf + *len, buf_len - *len,
1520                           "***********************************\n");
1521 }
1522
1523 static void ath10k_tpc_stats_fill(struct ath10k *ar,
1524                                   struct ath10k_tpc_stats *tpc_stats,
1525                                   char *buf)
1526 {
1527         int j;
1528         size_t len, buf_len;
1529
1530         len = 0;
1531         buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
1532
1533         spin_lock_bh(&ar->data_lock);
1534
1535         if (!tpc_stats) {
1536                 ath10k_warn(ar, "failed to get tpc stats\n");
1537                 goto unlock;
1538         }
1539
1540         len += scnprintf(buf + len, buf_len - len, "\n");
1541         len += scnprintf(buf + len, buf_len - len,
1542                          "*************************************\n");
1543         len += scnprintf(buf + len, buf_len - len,
1544                          "TPC config for channel %4d mode %d\n",
1545                          tpc_stats->chan_freq,
1546                          tpc_stats->phy_mode);
1547         len += scnprintf(buf + len, buf_len - len,
1548                          "*************************************\n");
1549         len += scnprintf(buf + len, buf_len - len,
1550                          "CTL           =  0x%2x Reg. Domain            = %2d\n",
1551                          tpc_stats->ctl,
1552                          tpc_stats->reg_domain);
1553         len += scnprintf(buf + len, buf_len - len,
1554                          "Antenna Gain  = %2d Reg. Max Antenna Gain     =  %2d\n",
1555                          tpc_stats->twice_antenna_gain,
1556                          tpc_stats->twice_antenna_reduction);
1557         len += scnprintf(buf + len, buf_len - len,
1558                          "Power Limit   = %2d Reg. Max Power            = %2d\n",
1559                          tpc_stats->power_limit,
1560                          tpc_stats->twice_max_rd_power / 2);
1561         len += scnprintf(buf + len, buf_len - len,
1562                          "Num tx chains = %2d Num supported rates       = %2d\n",
1563                          tpc_stats->num_tx_chain,
1564                          tpc_stats->rate_max);
1565
1566         for (j = 0; j < WMI_TPC_FLAG; j++) {
1567                 switch (j) {
1568                 case WMI_TPC_TABLE_TYPE_CDD:
1569                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1570                                 len += scnprintf(buf + len, buf_len - len,
1571                                                  "CDD not supported\n");
1572                                 break;
1573                         }
1574
1575                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1576                         break;
1577                 case WMI_TPC_TABLE_TYPE_STBC:
1578                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1579                                 len += scnprintf(buf + len, buf_len - len,
1580                                                  "STBC not supported\n");
1581                                 break;
1582                         }
1583
1584                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1585                         break;
1586                 case WMI_TPC_TABLE_TYPE_TXBF:
1587                         if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
1588                                 len += scnprintf(buf + len, buf_len - len,
1589                                                  "TXBF not supported\n***************************\n");
1590                                 break;
1591                         }
1592
1593                         ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
1594                         break;
1595                 default:
1596                         len += scnprintf(buf + len, buf_len - len,
1597                                          "Invalid Type\n");
1598                         break;
1599                 }
1600         }
1601
1602 unlock:
1603         spin_unlock_bh(&ar->data_lock);
1604
1605         if (len >= buf_len)
1606                 buf[len - 1] = 0;
1607         else
1608                 buf[len] = 0;
1609 }
1610
1611 static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
1612 {
1613         struct ath10k *ar = inode->i_private;
1614         void *buf = NULL;
1615         int ret;
1616
1617         mutex_lock(&ar->conf_mutex);
1618
1619         if (ar->state != ATH10K_STATE_ON) {
1620                 ret = -ENETDOWN;
1621                 goto err_unlock;
1622         }
1623
1624         buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
1625         if (!buf) {
1626                 ret = -ENOMEM;
1627                 goto err_unlock;
1628         }
1629
1630         ret = ath10k_debug_tpc_stats_request(ar);
1631         if (ret) {
1632                 ath10k_warn(ar, "failed to request tpc config stats: %d\n",
1633                             ret);
1634                 goto err_free;
1635         }
1636
1637         ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
1638         file->private_data = buf;
1639
1640         mutex_unlock(&ar->conf_mutex);
1641         return 0;
1642
1643 err_free:
1644         vfree(buf);
1645
1646 err_unlock:
1647         mutex_unlock(&ar->conf_mutex);
1648         return ret;
1649 }
1650
1651 static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
1652 {
1653         vfree(file->private_data);
1654
1655         return 0;
1656 }
1657
1658 static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
1659                                      size_t count, loff_t *ppos)
1660 {
1661         const char *buf = file->private_data;
1662         size_t len = strlen(buf);
1663
1664         return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1665 }
1666
1667 static const struct file_operations fops_tpc_stats = {
1668         .open = ath10k_tpc_stats_open,
1669         .release = ath10k_tpc_stats_release,
1670         .read = ath10k_tpc_stats_read,
1671         .owner = THIS_MODULE,
1672         .llseek = default_llseek,
1673 };
1674
1675 int ath10k_debug_start(struct ath10k *ar)
1676 {
1677         int ret;
1678
1679         lockdep_assert_held(&ar->conf_mutex);
1680
1681         ret = ath10k_debug_htt_stats_req(ar);
1682         if (ret)
1683                 /* continue normally anyway, this isn't serious */
1684                 ath10k_warn(ar, "failed to start htt stats workqueue: %d\n",
1685                             ret);
1686
1687         if (ar->debug.fw_dbglog_mask) {
1688                 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
1689                                             ATH10K_DBGLOG_LEVEL_WARN);
1690                 if (ret)
1691                         /* not serious */
1692                         ath10k_warn(ar, "failed to enable dbglog during start: %d",
1693                                     ret);
1694         }
1695
1696         if (ar->pktlog_filter) {
1697                 ret = ath10k_wmi_pdev_pktlog_enable(ar,
1698                                                     ar->pktlog_filter);
1699                 if (ret)
1700                         /* not serious */
1701                         ath10k_warn(ar,
1702                                     "failed to enable pktlog filter %x: %d\n",
1703                                     ar->pktlog_filter, ret);
1704         } else {
1705                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1706                 if (ret)
1707                         /* not serious */
1708                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1709         }
1710
1711         if (ar->debug.nf_cal_period) {
1712                 ret = ath10k_wmi_pdev_set_param(ar,
1713                                                 ar->wmi.pdev_param->cal_period,
1714                                                 ar->debug.nf_cal_period);
1715                 if (ret)
1716                         /* not serious */
1717                         ath10k_warn(ar, "cal period cfg failed from debug start: %d\n",
1718                                     ret);
1719         }
1720
1721         return ret;
1722 }
1723
1724 void ath10k_debug_stop(struct ath10k *ar)
1725 {
1726         lockdep_assert_held(&ar->conf_mutex);
1727
1728         ath10k_debug_cal_data_fetch(ar);
1729
1730         /* Must not use _sync to avoid deadlock, we do that in
1731          * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
1732          * warning from del_timer().
1733          */
1734         if (ar->debug.htt_stats_mask != 0)
1735                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
1736
1737         ath10k_wmi_pdev_pktlog_disable(ar);
1738 }
1739
1740 static ssize_t ath10k_write_simulate_radar(struct file *file,
1741                                            const char __user *user_buf,
1742                                            size_t count, loff_t *ppos)
1743 {
1744         struct ath10k *ar = file->private_data;
1745         struct ath10k_vif *arvif;
1746
1747         /* Just check for for the first vif alone, as all the vifs will be
1748          * sharing the same channel and if the channel is disabled, all the
1749          * vifs will share the same 'is_started' state.
1750          */
1751         arvif = list_first_entry(&ar->arvifs, typeof(*arvif), list);
1752         if (!arvif->is_started)
1753                 return -EINVAL;
1754
1755         ieee80211_radar_detected(ar->hw);
1756
1757         return count;
1758 }
1759
1760 static const struct file_operations fops_simulate_radar = {
1761         .write = ath10k_write_simulate_radar,
1762         .open = simple_open,
1763         .owner = THIS_MODULE,
1764         .llseek = default_llseek,
1765 };
1766
1767 #define ATH10K_DFS_STAT(s, p) (\
1768         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1769                          ar->debug.dfs_stats.p))
1770
1771 #define ATH10K_DFS_POOL_STAT(s, p) (\
1772         len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
1773                          ar->debug.dfs_pool_stats.p))
1774
1775 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
1776                                      size_t count, loff_t *ppos)
1777 {
1778         int retval = 0, len = 0;
1779         const int size = 8000;
1780         struct ath10k *ar = file->private_data;
1781         char *buf;
1782
1783         buf = kzalloc(size, GFP_KERNEL);
1784         if (buf == NULL)
1785                 return -ENOMEM;
1786
1787         if (!ar->dfs_detector) {
1788                 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
1789                 goto exit;
1790         }
1791
1792         ar->debug.dfs_pool_stats =
1793                         ar->dfs_detector->get_stats(ar->dfs_detector);
1794
1795         len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
1796
1797         ATH10K_DFS_STAT("reported phy errors", phy_errors);
1798         ATH10K_DFS_STAT("pulse events reported", pulses_total);
1799         ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
1800         ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
1801         ATH10K_DFS_STAT("Radars detected", radar_detected);
1802
1803         len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
1804         ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
1805         ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
1806         ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
1807         ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
1808         ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
1809         ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
1810         ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
1811
1812 exit:
1813         if (len > size)
1814                 len = size;
1815
1816         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1817         kfree(buf);
1818
1819         return retval;
1820 }
1821
1822 static const struct file_operations fops_dfs_stats = {
1823         .read = ath10k_read_dfs_stats,
1824         .open = simple_open,
1825         .owner = THIS_MODULE,
1826         .llseek = default_llseek,
1827 };
1828
1829 static ssize_t ath10k_write_pktlog_filter(struct file *file,
1830                                           const char __user *ubuf,
1831                                           size_t count, loff_t *ppos)
1832 {
1833         struct ath10k *ar = file->private_data;
1834         u32 filter;
1835         int ret;
1836
1837         if (kstrtouint_from_user(ubuf, count, 0, &filter))
1838                 return -EINVAL;
1839
1840         mutex_lock(&ar->conf_mutex);
1841
1842         if (ar->state != ATH10K_STATE_ON) {
1843                 ar->pktlog_filter = filter;
1844                 ret = count;
1845                 goto out;
1846         }
1847
1848         if (filter == ar->pktlog_filter) {
1849                 ret = count;
1850                 goto out;
1851         }
1852
1853         if (filter) {
1854                 ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
1855                 if (ret) {
1856                         ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
1857                                     ar->pktlog_filter, ret);
1858                         goto out;
1859                 }
1860         } else {
1861                 ret = ath10k_wmi_pdev_pktlog_disable(ar);
1862                 if (ret) {
1863                         ath10k_warn(ar, "failed to disable pktlog: %d\n", ret);
1864                         goto out;
1865                 }
1866         }
1867
1868         ar->pktlog_filter = filter;
1869         ret = count;
1870
1871 out:
1872         mutex_unlock(&ar->conf_mutex);
1873         return ret;
1874 }
1875
1876 static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
1877                                          size_t count, loff_t *ppos)
1878 {
1879         char buf[32];
1880         struct ath10k *ar = file->private_data;
1881         int len = 0;
1882
1883         mutex_lock(&ar->conf_mutex);
1884         len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
1885                         ar->pktlog_filter);
1886         mutex_unlock(&ar->conf_mutex);
1887
1888         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1889 }
1890
1891 static const struct file_operations fops_pktlog_filter = {
1892         .read = ath10k_read_pktlog_filter,
1893         .write = ath10k_write_pktlog_filter,
1894         .open = simple_open
1895 };
1896
1897 static ssize_t ath10k_write_quiet_period(struct file *file,
1898                                          const char __user *ubuf,
1899                                          size_t count, loff_t *ppos)
1900 {
1901         struct ath10k *ar = file->private_data;
1902         u32 period;
1903
1904         if (kstrtouint_from_user(ubuf, count, 0, &period))
1905                 return -EINVAL;
1906
1907         if (period < ATH10K_QUIET_PERIOD_MIN) {
1908                 ath10k_warn(ar, "Quiet period %u can not be lesser than 25ms\n",
1909                             period);
1910                 return -EINVAL;
1911         }
1912         mutex_lock(&ar->conf_mutex);
1913         ar->thermal.quiet_period = period;
1914         ath10k_thermal_set_throttling(ar);
1915         mutex_unlock(&ar->conf_mutex);
1916
1917         return count;
1918 }
1919
1920 static ssize_t ath10k_read_quiet_period(struct file *file, char __user *ubuf,
1921                                         size_t count, loff_t *ppos)
1922 {
1923         char buf[32];
1924         struct ath10k *ar = file->private_data;
1925         int len = 0;
1926
1927         mutex_lock(&ar->conf_mutex);
1928         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
1929                         ar->thermal.quiet_period);
1930         mutex_unlock(&ar->conf_mutex);
1931
1932         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
1933 }
1934
1935 static const struct file_operations fops_quiet_period = {
1936         .read = ath10k_read_quiet_period,
1937         .write = ath10k_write_quiet_period,
1938         .open = simple_open
1939 };
1940
1941 static ssize_t ath10k_write_btcoex(struct file *file,
1942                                    const char __user *ubuf,
1943                                    size_t count, loff_t *ppos)
1944 {
1945         struct ath10k *ar = file->private_data;
1946         char buf[32];
1947         size_t buf_size;
1948         int ret;
1949         bool val;
1950         u32 pdev_param;
1951
1952         buf_size = min(count, (sizeof(buf) - 1));
1953         if (copy_from_user(buf, ubuf, buf_size))
1954                 return -EFAULT;
1955
1956         buf[buf_size] = '\0';
1957
1958         if (strtobool(buf, &val) != 0)
1959                 return -EINVAL;
1960
1961         mutex_lock(&ar->conf_mutex);
1962
1963         if (ar->state != ATH10K_STATE_ON &&
1964             ar->state != ATH10K_STATE_RESTARTED) {
1965                 ret = -ENETDOWN;
1966                 goto exit;
1967         }
1968
1969         if (!(test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags) ^ val)) {
1970                 ret = count;
1971                 goto exit;
1972         }
1973
1974         pdev_param = ar->wmi.pdev_param->enable_btcoex;
1975         if (test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
1976                      ar->running_fw->fw_file.fw_features)) {
1977                 ret = ath10k_wmi_pdev_set_param(ar, pdev_param, val);
1978                 if (ret) {
1979                         ath10k_warn(ar, "failed to enable btcoex: %d\n", ret);
1980                         ret = count;
1981                         goto exit;
1982                 }
1983         } else {
1984                 ath10k_info(ar, "restarting firmware due to btcoex change");
1985                 queue_work(ar->workqueue, &ar->restart_work);
1986         }
1987
1988         if (val)
1989                 set_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
1990         else
1991                 clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
1992
1993         ret = count;
1994
1995 exit:
1996         mutex_unlock(&ar->conf_mutex);
1997
1998         return ret;
1999 }
2000
2001 static ssize_t ath10k_read_btcoex(struct file *file, char __user *ubuf,
2002                                   size_t count, loff_t *ppos)
2003 {
2004         char buf[32];
2005         struct ath10k *ar = file->private_data;
2006         int len = 0;
2007
2008         mutex_lock(&ar->conf_mutex);
2009         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2010                         test_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags));
2011         mutex_unlock(&ar->conf_mutex);
2012
2013         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2014 }
2015
2016 static const struct file_operations fops_btcoex = {
2017         .read = ath10k_read_btcoex,
2018         .write = ath10k_write_btcoex,
2019         .open = simple_open
2020 };
2021
2022 static ssize_t ath10k_write_peer_stats(struct file *file,
2023                                        const char __user *ubuf,
2024                                        size_t count, loff_t *ppos)
2025 {
2026         struct ath10k *ar = file->private_data;
2027         char buf[32];
2028         size_t buf_size;
2029         int ret;
2030         bool val;
2031
2032         buf_size = min(count, (sizeof(buf) - 1));
2033         if (copy_from_user(buf, ubuf, buf_size))
2034                 return -EFAULT;
2035
2036         buf[buf_size] = '\0';
2037
2038         if (strtobool(buf, &val) != 0)
2039                 return -EINVAL;
2040
2041         mutex_lock(&ar->conf_mutex);
2042
2043         if (ar->state != ATH10K_STATE_ON &&
2044             ar->state != ATH10K_STATE_RESTARTED) {
2045                 ret = -ENETDOWN;
2046                 goto exit;
2047         }
2048
2049         if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val)) {
2050                 ret = count;
2051                 goto exit;
2052         }
2053
2054         if (val)
2055                 set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2056         else
2057                 clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
2058
2059         ath10k_info(ar, "restarting firmware due to Peer stats change");
2060
2061         queue_work(ar->workqueue, &ar->restart_work);
2062         ret = count;
2063
2064 exit:
2065         mutex_unlock(&ar->conf_mutex);
2066         return ret;
2067 }
2068
2069 static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
2070                                       size_t count, loff_t *ppos)
2071
2072 {
2073         char buf[32];
2074         struct ath10k *ar = file->private_data;
2075         int len = 0;
2076
2077         mutex_lock(&ar->conf_mutex);
2078         len = scnprintf(buf, sizeof(buf) - len, "%d\n",
2079                         test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
2080         mutex_unlock(&ar->conf_mutex);
2081
2082         return simple_read_from_buffer(ubuf, count, ppos, buf, len);
2083 }
2084
2085 static const struct file_operations fops_peer_stats = {
2086         .read = ath10k_read_peer_stats,
2087         .write = ath10k_write_peer_stats,
2088         .open = simple_open
2089 };
2090
2091 static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
2092                                               char __user *user_buf,
2093                                               size_t count, loff_t *ppos)
2094 {
2095         struct ath10k *ar = file->private_data;
2096         size_t len = 0, buf_len = 4096;
2097         ssize_t ret_cnt;
2098         char *buf;
2099
2100         buf = kzalloc(buf_len, GFP_KERNEL);
2101         if (!buf)
2102                 return -ENOMEM;
2103
2104         mutex_lock(&ar->conf_mutex);
2105
2106         len += scnprintf(buf + len, buf_len - len,
2107                          "firmware-N.bin\t\t%08x\n",
2108                          crc32_le(0, ar->normal_mode_fw.fw_file.firmware->data,
2109                                   ar->normal_mode_fw.fw_file.firmware->size));
2110         len += scnprintf(buf + len, buf_len - len,
2111                          "athwlan\t\t\t%08x\n",
2112                          crc32_le(0, ar->normal_mode_fw.fw_file.firmware_data,
2113                                   ar->normal_mode_fw.fw_file.firmware_len));
2114         len += scnprintf(buf + len, buf_len - len,
2115                          "otp\t\t\t%08x\n",
2116                          crc32_le(0, ar->normal_mode_fw.fw_file.otp_data,
2117                                   ar->normal_mode_fw.fw_file.otp_len));
2118         len += scnprintf(buf + len, buf_len - len,
2119                          "codeswap\t\t%08x\n",
2120                          crc32_le(0, ar->normal_mode_fw.fw_file.codeswap_data,
2121                                   ar->normal_mode_fw.fw_file.codeswap_len));
2122         len += scnprintf(buf + len, buf_len - len,
2123                          "board-N.bin\t\t%08x\n",
2124                          crc32_le(0, ar->normal_mode_fw.board->data,
2125                                   ar->normal_mode_fw.board->size));
2126         len += scnprintf(buf + len, buf_len - len,
2127                          "board\t\t\t%08x\n",
2128                          crc32_le(0, ar->normal_mode_fw.board_data,
2129                                   ar->normal_mode_fw.board_len));
2130
2131         ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
2132
2133         mutex_unlock(&ar->conf_mutex);
2134
2135         kfree(buf);
2136         return ret_cnt;
2137 }
2138
2139 static const struct file_operations fops_fw_checksums = {
2140         .read = ath10k_debug_fw_checksums_read,
2141         .open = simple_open,
2142         .owner = THIS_MODULE,
2143         .llseek = default_llseek,
2144 };
2145
2146 int ath10k_debug_create(struct ath10k *ar)
2147 {
2148         ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
2149         if (!ar->debug.cal_data)
2150                 return -ENOMEM;
2151
2152         INIT_LIST_HEAD(&ar->debug.fw_stats.pdevs);
2153         INIT_LIST_HEAD(&ar->debug.fw_stats.vdevs);
2154         INIT_LIST_HEAD(&ar->debug.fw_stats.peers);
2155         INIT_LIST_HEAD(&ar->debug.fw_stats.peers_extd);
2156
2157         return 0;
2158 }
2159
2160 void ath10k_debug_destroy(struct ath10k *ar)
2161 {
2162         vfree(ar->debug.cal_data);
2163         ar->debug.cal_data = NULL;
2164
2165         ath10k_debug_fw_stats_reset(ar);
2166
2167         kfree(ar->debug.tpc_stats);
2168 }
2169
2170 int ath10k_debug_register(struct ath10k *ar)
2171 {
2172         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
2173                                                    ar->hw->wiphy->debugfsdir);
2174         if (IS_ERR_OR_NULL(ar->debug.debugfs_phy)) {
2175                 if (IS_ERR(ar->debug.debugfs_phy))
2176                         return PTR_ERR(ar->debug.debugfs_phy);
2177
2178                 return -ENOMEM;
2179         }
2180
2181         INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
2182                           ath10k_debug_htt_stats_dwork);
2183
2184         init_completion(&ar->debug.tpc_complete);
2185         init_completion(&ar->debug.fw_stats_complete);
2186
2187         debugfs_create_file("fw_stats", 0400, ar->debug.debugfs_phy, ar,
2188                             &fops_fw_stats);
2189
2190         debugfs_create_file("fw_reset_stats", 0400, ar->debug.debugfs_phy, ar,
2191                             &fops_fw_reset_stats);
2192
2193         debugfs_create_file("wmi_services", 0400, ar->debug.debugfs_phy, ar,
2194                             &fops_wmi_services);
2195
2196         debugfs_create_file("simulate_fw_crash", 0600, ar->debug.debugfs_phy, ar,
2197                             &fops_simulate_fw_crash);
2198
2199         debugfs_create_file("reg_addr", 0600, ar->debug.debugfs_phy, ar,
2200                             &fops_reg_addr);
2201
2202         debugfs_create_file("reg_value", 0600, ar->debug.debugfs_phy, ar,
2203                             &fops_reg_value);
2204
2205         debugfs_create_file("mem_value", 0600, ar->debug.debugfs_phy, ar,
2206                             &fops_mem_value);
2207
2208         debugfs_create_file("chip_id", 0400, ar->debug.debugfs_phy, ar,
2209                             &fops_chip_id);
2210
2211         debugfs_create_file("htt_stats_mask", 0600, ar->debug.debugfs_phy, ar,
2212                             &fops_htt_stats_mask);
2213
2214         debugfs_create_file("htt_max_amsdu_ampdu", 0600, ar->debug.debugfs_phy, ar,
2215                             &fops_htt_max_amsdu_ampdu);
2216
2217         debugfs_create_file("fw_dbglog", 0600, ar->debug.debugfs_phy, ar,
2218                             &fops_fw_dbglog);
2219
2220         debugfs_create_file("cal_data", 0400, ar->debug.debugfs_phy, ar,
2221                             &fops_cal_data);
2222
2223         debugfs_create_file("ani_enable", 0600, ar->debug.debugfs_phy, ar,
2224                             &fops_ani_enable);
2225
2226         debugfs_create_file("nf_cal_period", 0600, ar->debug.debugfs_phy, ar,
2227                             &fops_nf_cal_period);
2228
2229         if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
2230                 debugfs_create_file("dfs_simulate_radar", 0200, ar->debug.debugfs_phy,
2231                                     ar, &fops_simulate_radar);
2232
2233                 debugfs_create_bool("dfs_block_radar_events", 0200,
2234                                     ar->debug.debugfs_phy,
2235                                     &ar->dfs_block_radar_events);
2236
2237                 debugfs_create_file("dfs_stats", 0400, ar->debug.debugfs_phy, ar,
2238                                     &fops_dfs_stats);
2239         }
2240
2241         debugfs_create_file("pktlog_filter", 0644, ar->debug.debugfs_phy, ar,
2242                             &fops_pktlog_filter);
2243
2244         debugfs_create_file("quiet_period", 0644, ar->debug.debugfs_phy, ar,
2245                             &fops_quiet_period);
2246
2247         debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_phy, ar,
2248                             &fops_tpc_stats);
2249
2250         if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
2251                 debugfs_create_file("btcoex", 0644, ar->debug.debugfs_phy, ar,
2252                                     &fops_btcoex);
2253
2254         if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
2255                 debugfs_create_file("peer_stats", 0644, ar->debug.debugfs_phy, ar,
2256                                     &fops_peer_stats);
2257
2258         debugfs_create_file("fw_checksums", 0400, ar->debug.debugfs_phy, ar,
2259                             &fops_fw_checksums);
2260
2261         return 0;
2262 }
2263
2264 void ath10k_debug_unregister(struct ath10k *ar)
2265 {
2266         cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
2267 }
2268
2269 #endif /* CONFIG_ATH10K_DEBUGFS */
2270
2271 #ifdef CONFIG_ATH10K_DEBUG
2272 void ath10k_dbg(struct ath10k *ar, enum ath10k_debug_mask mask,
2273                 const char *fmt, ...)
2274 {
2275         struct va_format vaf;
2276         va_list args;
2277
2278         va_start(args, fmt);
2279
2280         vaf.fmt = fmt;
2281         vaf.va = &args;
2282
2283         if (ath10k_debug_mask & mask)
2284                 dev_printk(KERN_DEBUG, ar->dev, "%pV", &vaf);
2285
2286         trace_ath10k_log_dbg(ar, mask, &vaf);
2287
2288         va_end(args);
2289 }
2290 EXPORT_SYMBOL(ath10k_dbg);
2291
2292 void ath10k_dbg_dump(struct ath10k *ar,
2293                      enum ath10k_debug_mask mask,
2294                      const char *msg, const char *prefix,
2295                      const void *buf, size_t len)
2296 {
2297         char linebuf[256];
2298         size_t linebuflen;
2299         const void *ptr;
2300
2301         if (ath10k_debug_mask & mask) {
2302                 if (msg)
2303                         ath10k_dbg(ar, mask, "%s\n", msg);
2304
2305                 for (ptr = buf; (ptr - buf) < len; ptr += 16) {
2306                         linebuflen = 0;
2307                         linebuflen += scnprintf(linebuf + linebuflen,
2308                                                 sizeof(linebuf) - linebuflen,
2309                                                 "%s%08x: ",
2310                                                 (prefix ? prefix : ""),
2311                                                 (unsigned int)(ptr - buf));
2312                         hex_dump_to_buffer(ptr, len - (ptr - buf), 16, 1,
2313                                            linebuf + linebuflen,
2314                                            sizeof(linebuf) - linebuflen, true);
2315                         dev_printk(KERN_DEBUG, ar->dev, "%s\n", linebuf);
2316                 }
2317         }
2318
2319         /* tracing code doesn't like null strings :/ */
2320         trace_ath10k_log_dbg_dump(ar, msg ? msg : "", prefix ? prefix : "",
2321                                   buf, len);
2322 }
2323 EXPORT_SYMBOL(ath10k_dbg_dump);
2324
2325 #endif /* CONFIG_ATH10K_DEBUG */