2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <linux/module.h>
19 #include <linux/debugfs.h>
25 #define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
27 static int ath10k_printk(const char *level, const char *fmt, ...)
38 rtn = printk("%sath10k: %pV", level, &vaf);
45 int ath10k_info(const char *fmt, ...)
47 struct va_format vaf = {
55 ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
56 trace_ath10k_log_info(&vaf);
61 EXPORT_SYMBOL(ath10k_info);
63 int ath10k_err(const char *fmt, ...)
65 struct va_format vaf = {
73 ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
74 trace_ath10k_log_err(&vaf);
79 EXPORT_SYMBOL(ath10k_err);
81 int ath10k_warn(const char *fmt, ...)
83 struct va_format vaf = {
93 ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
95 trace_ath10k_log_warn(&vaf);
101 EXPORT_SYMBOL(ath10k_warn);
103 #ifdef CONFIG_ATH10K_DEBUGFS
105 void ath10k_debug_read_service_map(struct ath10k *ar,
109 memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
112 static ssize_t ath10k_read_wmi_services(struct file *file,
113 char __user *user_buf,
114 size_t count, loff_t *ppos)
116 struct ath10k *ar = file->private_data;
118 unsigned int len = 0, buf_len = 1500;
123 buf = kzalloc(buf_len, GFP_KERNEL);
127 mutex_lock(&ar->conf_mutex);
132 for (i = 0; i < WMI_SERVICE_LAST; i++) {
133 if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
138 len += scnprintf(buf + len, buf_len - len,
139 "0x%02x - %20s - %s\n",
140 i, wmi_service_name(i), status);
143 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
145 mutex_unlock(&ar->conf_mutex);
151 static const struct file_operations fops_wmi_services = {
152 .read = ath10k_read_wmi_services,
154 .owner = THIS_MODULE,
155 .llseek = default_llseek,
158 void ath10k_debug_read_target_stats(struct ath10k *ar,
159 struct wmi_stats_event *ev)
162 struct ath10k_target_stats *stats;
163 int num_pdev_stats, num_vdev_stats, num_peer_stats;
164 struct wmi_pdev_stats_10x *ps;
167 spin_lock_bh(&ar->data_lock);
169 stats = &ar->debug.target_stats;
171 num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
172 num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
173 num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
175 if (num_pdev_stats) {
176 ps = (struct wmi_pdev_stats_10x *)tmp;
178 stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
179 stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
180 stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
181 stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
182 stats->cycle_count = __le32_to_cpu(ps->cycle_count);
183 stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
184 stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
186 stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
187 stats->comp_delivered =
188 __le32_to_cpu(ps->wal.tx.comp_delivered);
189 stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
190 stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
191 stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
192 stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
193 stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
194 stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
195 stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
196 stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
197 stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
198 stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
199 stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
200 stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
201 stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
202 stats->sw_retry_failure =
203 __le32_to_cpu(ps->wal.tx.sw_retry_failure);
204 stats->illgl_rate_phy_err =
205 __le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
206 stats->pdev_cont_xretry =
207 __le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
208 stats->pdev_tx_timeout =
209 __le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
210 stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
211 stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
212 stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
214 stats->mid_ppdu_route_change =
215 __le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
216 stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
217 stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
218 stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
219 stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
220 stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
221 stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
222 stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
223 stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
224 stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
225 stats->oversize_amsdu =
226 __le32_to_cpu(ps->wal.rx.oversize_amsdu);
227 stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
228 stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
229 stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
231 if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
233 stats->ack_rx_bad = __le32_to_cpu(ps->ack_rx_bad);
234 stats->rts_bad = __le32_to_cpu(ps->rts_bad);
235 stats->rts_good = __le32_to_cpu(ps->rts_good);
236 stats->fcs_bad = __le32_to_cpu(ps->fcs_bad);
237 stats->no_beacons = __le32_to_cpu(ps->no_beacons);
238 stats->mib_int_count = __le32_to_cpu(ps->mib_int_count);
239 tmp += sizeof(struct wmi_pdev_stats_10x);
241 tmp += sizeof(struct wmi_pdev_stats_old);
246 /* Currently firmware does not support VDEV stats */
247 if (num_vdev_stats) {
248 struct wmi_vdev_stats *vdev_stats;
250 for (i = 0; i < num_vdev_stats; i++) {
251 vdev_stats = (struct wmi_vdev_stats *)tmp;
252 tmp += sizeof(struct wmi_vdev_stats);
256 if (num_peer_stats) {
257 struct wmi_peer_stats_10x *peer_stats;
258 struct ath10k_peer_stat *s;
260 stats->peers = num_peer_stats;
262 for (i = 0; i < num_peer_stats; i++) {
263 peer_stats = (struct wmi_peer_stats_10x *)tmp;
264 s = &stats->peer_stat[i];
266 memcpy(s->peer_macaddr, &peer_stats->peer_macaddr.addr,
268 s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
270 __le32_to_cpu(peer_stats->peer_tx_rate);
271 if (test_bit(ATH10K_FW_FEATURE_WMI_10X,
274 __le32_to_cpu(peer_stats->peer_rx_rate);
275 tmp += sizeof(struct wmi_peer_stats_10x);
278 tmp += sizeof(struct wmi_peer_stats_old);
283 spin_unlock_bh(&ar->data_lock);
284 complete(&ar->debug.event_stats_compl);
287 static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
288 size_t count, loff_t *ppos)
290 struct ath10k *ar = file->private_data;
291 struct ath10k_target_stats *fw_stats;
293 unsigned int len = 0, buf_len = 8000;
299 fw_stats = &ar->debug.target_stats;
301 mutex_lock(&ar->conf_mutex);
303 if (ar->state != ATH10K_STATE_ON)
306 buf = kzalloc(buf_len, GFP_KERNEL);
310 ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
312 ath10k_warn("could not request stats (%d)\n", ret);
316 left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
320 spin_lock_bh(&ar->data_lock);
321 len += scnprintf(buf + len, buf_len - len, "\n");
322 len += scnprintf(buf + len, buf_len - len, "%30s\n",
323 "ath10k PDEV stats");
324 len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
325 "=================");
327 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
328 "Channel noise floor", fw_stats->ch_noise_floor);
329 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
330 "Channel TX power", fw_stats->chan_tx_power);
331 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
332 "TX frame count", fw_stats->tx_frame_count);
333 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
334 "RX frame count", fw_stats->rx_frame_count);
335 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
336 "RX clear count", fw_stats->rx_clear_count);
337 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
338 "Cycle count", fw_stats->cycle_count);
339 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
340 "PHY error count", fw_stats->phy_err_count);
341 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
342 "RTS bad count", fw_stats->rts_bad);
343 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
344 "RTS good count", fw_stats->rts_good);
345 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
346 "FCS bad count", fw_stats->fcs_bad);
347 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
348 "No beacon count", fw_stats->no_beacons);
349 len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
350 "MIB int count", fw_stats->mib_int_count);
352 len += scnprintf(buf + len, buf_len - len, "\n");
353 len += scnprintf(buf + len, buf_len - len, "%30s\n",
354 "ath10k PDEV TX stats");
355 len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
356 "=================");
358 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
359 "HTT cookies queued", fw_stats->comp_queued);
360 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
361 "HTT cookies disp.", fw_stats->comp_delivered);
362 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
363 "MSDU queued", fw_stats->msdu_enqued);
364 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
365 "MPDU queued", fw_stats->mpdu_enqued);
366 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
367 "MSDUs dropped", fw_stats->wmm_drop);
368 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
369 "Local enqued", fw_stats->local_enqued);
370 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
371 "Local freed", fw_stats->local_freed);
372 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
373 "HW queued", fw_stats->hw_queued);
374 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
375 "PPDUs reaped", fw_stats->hw_reaped);
376 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
377 "Num underruns", fw_stats->underrun);
378 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
379 "PPDUs cleaned", fw_stats->tx_abort);
380 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
381 "MPDUs requed", fw_stats->mpdus_requed);
382 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
383 "Excessive retries", fw_stats->tx_ko);
384 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
385 "HW rate", fw_stats->data_rc);
386 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
387 "Sched self tiggers", fw_stats->self_triggers);
388 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
389 "Dropped due to SW retries",
390 fw_stats->sw_retry_failure);
391 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
392 "Illegal rate phy errors",
393 fw_stats->illgl_rate_phy_err);
394 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
395 "Pdev continous xretry", fw_stats->pdev_cont_xretry);
396 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
397 "TX timeout", fw_stats->pdev_tx_timeout);
398 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
399 "PDEV resets", fw_stats->pdev_resets);
400 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
401 "PHY underrun", fw_stats->phy_underrun);
402 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
403 "MPDU is more than txop limit", fw_stats->txop_ovf);
405 len += scnprintf(buf + len, buf_len - len, "\n");
406 len += scnprintf(buf + len, buf_len - len, "%30s\n",
407 "ath10k PDEV RX stats");
408 len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
409 "=================");
411 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
412 "Mid PPDU route change",
413 fw_stats->mid_ppdu_route_change);
414 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
415 "Tot. number of statuses", fw_stats->status_rcvd);
416 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
417 "Extra frags on rings 0", fw_stats->r0_frags);
418 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
419 "Extra frags on rings 1", fw_stats->r1_frags);
420 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
421 "Extra frags on rings 2", fw_stats->r2_frags);
422 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
423 "Extra frags on rings 3", fw_stats->r3_frags);
424 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
425 "MSDUs delivered to HTT", fw_stats->htt_msdus);
426 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
427 "MPDUs delivered to HTT", fw_stats->htt_mpdus);
428 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
429 "MSDUs delivered to stack", fw_stats->loc_msdus);
430 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
431 "MPDUs delivered to stack", fw_stats->loc_mpdus);
432 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
433 "Oversized AMSUs", fw_stats->oversize_amsdu);
434 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
435 "PHY errors", fw_stats->phy_errs);
436 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
437 "PHY errors drops", fw_stats->phy_err_drop);
438 len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
439 "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
441 len += scnprintf(buf + len, buf_len - len, "\n");
442 len += scnprintf(buf + len, buf_len - len, "%30s (%d)\n",
443 "ath10k PEER stats", fw_stats->peers);
444 len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
445 "=================");
447 for (i = 0; i < fw_stats->peers; i++) {
448 len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
450 fw_stats->peer_stat[i].peer_macaddr);
451 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
452 "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
453 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
455 fw_stats->peer_stat[i].peer_tx_rate);
456 len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
458 fw_stats->peer_stat[i].peer_rx_rate);
459 len += scnprintf(buf + len, buf_len - len, "\n");
461 spin_unlock_bh(&ar->data_lock);
466 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
469 mutex_unlock(&ar->conf_mutex);
474 static const struct file_operations fops_fw_stats = {
475 .read = ath10k_read_fw_stats,
477 .owner = THIS_MODULE,
478 .llseek = default_llseek,
481 static ssize_t ath10k_read_simulate_fw_crash(struct file *file,
482 char __user *user_buf,
483 size_t count, loff_t *ppos)
485 const char buf[] = "To simulate firmware crash write one of the"
486 " keywords to this file:\n `soft` - this will send"
487 " WMI_FORCE_FW_HANG_ASSERT to firmware if FW"
488 " supports that command.\n `hard` - this will send"
489 " to firmware command with illegal parameters"
490 " causing firmware crash.\n";
492 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
495 /* Simulate firmware crash:
496 * 'soft': Call wmi command causing firmware hang. This firmware hang is
497 * recoverable by warm firmware reset.
498 * 'hard': Force firmware crash by setting any vdev parameter for not allowed
499 * vdev id. This is hard firmware crash because it is recoverable only by cold
502 static ssize_t ath10k_write_simulate_fw_crash(struct file *file,
503 const char __user *user_buf,
504 size_t count, loff_t *ppos)
506 struct ath10k *ar = file->private_data;
510 mutex_lock(&ar->conf_mutex);
512 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
514 /* make sure that buf is null terminated */
515 buf[sizeof(buf) - 1] = 0;
517 if (ar->state != ATH10K_STATE_ON &&
518 ar->state != ATH10K_STATE_RESTARTED) {
523 /* drop the possible '\n' from the end */
524 if (buf[count - 1] == '\n') {
529 if (!strcmp(buf, "soft")) {
530 ath10k_info("simulating soft firmware crash\n");
531 ret = ath10k_wmi_force_fw_hang(ar, WMI_FORCE_FW_HANG_ASSERT, 0);
532 } else if (!strcmp(buf, "hard")) {
533 ath10k_info("simulating hard firmware crash\n");
534 /* 0x7fff is vdev id, and it is always out of range for all
535 * firmware variants in order to force a firmware crash.
537 ret = ath10k_wmi_vdev_set_param(ar, 0x7fff,
538 ar->wmi.vdev_param->rts_threshold, 0);
545 ath10k_warn("failed to simulate firmware crash: %d\n", ret);
552 mutex_unlock(&ar->conf_mutex);
556 static const struct file_operations fops_simulate_fw_crash = {
557 .read = ath10k_read_simulate_fw_crash,
558 .write = ath10k_write_simulate_fw_crash,
560 .owner = THIS_MODULE,
561 .llseek = default_llseek,
564 static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
565 size_t count, loff_t *ppos)
567 struct ath10k *ar = file->private_data;
571 len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
573 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
576 static const struct file_operations fops_chip_id = {
577 .read = ath10k_read_chip_id,
579 .owner = THIS_MODULE,
580 .llseek = default_llseek,
583 static int ath10k_debug_htt_stats_req(struct ath10k *ar)
588 lockdep_assert_held(&ar->conf_mutex);
590 if (ar->debug.htt_stats_mask == 0)
591 /* htt stats are disabled */
594 if (ar->state != ATH10K_STATE_ON)
597 cookie = get_jiffies_64();
599 ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
602 ath10k_warn("failed to send htt stats request: %d\n", ret);
606 queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
607 msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
612 static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
614 struct ath10k *ar = container_of(work, struct ath10k,
615 debug.htt_stats_dwork.work);
617 mutex_lock(&ar->conf_mutex);
619 ath10k_debug_htt_stats_req(ar);
621 mutex_unlock(&ar->conf_mutex);
624 static ssize_t ath10k_read_htt_stats_mask(struct file *file,
625 char __user *user_buf,
626 size_t count, loff_t *ppos)
628 struct ath10k *ar = file->private_data;
632 len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
634 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
637 static ssize_t ath10k_write_htt_stats_mask(struct file *file,
638 const char __user *user_buf,
639 size_t count, loff_t *ppos)
641 struct ath10k *ar = file->private_data;
645 ret = kstrtoul_from_user(user_buf, count, 0, &mask);
649 /* max 8 bit masks (for now) */
653 mutex_lock(&ar->conf_mutex);
655 ar->debug.htt_stats_mask = mask;
657 ret = ath10k_debug_htt_stats_req(ar);
664 mutex_unlock(&ar->conf_mutex);
669 static const struct file_operations fops_htt_stats_mask = {
670 .read = ath10k_read_htt_stats_mask,
671 .write = ath10k_write_htt_stats_mask,
673 .owner = THIS_MODULE,
674 .llseek = default_llseek,
677 static ssize_t ath10k_read_htt_max_amsdu_ampdu(struct file *file,
678 char __user *user_buf,
679 size_t count, loff_t *ppos)
681 struct ath10k *ar = file->private_data;
683 u8 amsdu = 3, ampdu = 64;
686 mutex_lock(&ar->conf_mutex);
688 if (ar->debug.htt_max_amsdu)
689 amsdu = ar->debug.htt_max_amsdu;
691 if (ar->debug.htt_max_ampdu)
692 ampdu = ar->debug.htt_max_ampdu;
694 mutex_unlock(&ar->conf_mutex);
696 len = scnprintf(buf, sizeof(buf), "%u %u\n", amsdu, ampdu);
698 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
701 static ssize_t ath10k_write_htt_max_amsdu_ampdu(struct file *file,
702 const char __user *user_buf,
703 size_t count, loff_t *ppos)
705 struct ath10k *ar = file->private_data;
708 unsigned int amsdu, ampdu;
710 simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
712 /* make sure that buf is null terminated */
713 buf[sizeof(buf) - 1] = 0;
715 res = sscanf(buf, "%u %u", &amsdu, &du);
720 mutex_lock(&ar->conf_mutex);
722 res = ath10k_htt_h2t_aggr_cfg_msg(&ar->htt, ampdu, amsdu);
727 ar->debug.htt_max_amsdu = amsdu;
728 ar->debug.htt_max_ampdu = ampdu;
731 mutex_unlock(&ar->conf_mutex);
735 static const struct file_operations fops_htt_max_amsdu_ampdu = {
736 .read = ath10k_read_htt_max_amsdu_ampdu,
737 .write = ath10k_write_htt_max_amsdu_ampdu,
739 .owner = THIS_MODULE,
740 .llseek = default_llseek,
743 static ssize_t ath10k_read_fw_dbglog(struct file *file,
744 char __user *user_buf,
745 size_t count, loff_t *ppos)
747 struct ath10k *ar = file->private_data;
751 len = scnprintf(buf, sizeof(buf), "0x%08x\n",
752 ar->debug.fw_dbglog_mask);
754 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
757 static ssize_t ath10k_write_fw_dbglog(struct file *file,
758 const char __user *user_buf,
759 size_t count, loff_t *ppos)
761 struct ath10k *ar = file->private_data;
765 ret = kstrtoul_from_user(user_buf, count, 0, &mask);
769 mutex_lock(&ar->conf_mutex);
771 ar->debug.fw_dbglog_mask = mask;
773 if (ar->state == ATH10K_STATE_ON) {
774 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
776 ath10k_warn("dbglog cfg failed from debugfs: %d\n",
785 mutex_unlock(&ar->conf_mutex);
790 static const struct file_operations fops_fw_dbglog = {
791 .read = ath10k_read_fw_dbglog,
792 .write = ath10k_write_fw_dbglog,
794 .owner = THIS_MODULE,
795 .llseek = default_llseek,
798 int ath10k_debug_start(struct ath10k *ar)
802 lockdep_assert_held(&ar->conf_mutex);
804 ret = ath10k_debug_htt_stats_req(ar);
806 /* continue normally anyway, this isn't serious */
807 ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
809 if (ar->debug.fw_dbglog_mask) {
810 ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
813 ath10k_warn("failed to enable dbglog during start: %d",
820 void ath10k_debug_stop(struct ath10k *ar)
822 lockdep_assert_held(&ar->conf_mutex);
824 /* Must not use _sync to avoid deadlock, we do that in
825 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
826 * warning from del_timer(). */
827 if (ar->debug.htt_stats_mask != 0)
828 cancel_delayed_work(&ar->debug.htt_stats_dwork);
830 ar->debug.htt_max_amsdu = 0;
831 ar->debug.htt_max_ampdu = 0;
834 static ssize_t ath10k_write_simulate_radar(struct file *file,
835 const char __user *user_buf,
836 size_t count, loff_t *ppos)
838 struct ath10k *ar = file->private_data;
840 ieee80211_radar_detected(ar->hw);
845 static const struct file_operations fops_simulate_radar = {
846 .write = ath10k_write_simulate_radar,
848 .owner = THIS_MODULE,
849 .llseek = default_llseek,
852 #define ATH10K_DFS_STAT(s, p) (\
853 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
854 ar->debug.dfs_stats.p))
856 #define ATH10K_DFS_POOL_STAT(s, p) (\
857 len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
858 ar->debug.dfs_pool_stats.p))
860 static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
861 size_t count, loff_t *ppos)
863 int retval = 0, len = 0;
864 const int size = 8000;
865 struct ath10k *ar = file->private_data;
868 buf = kzalloc(size, GFP_KERNEL);
872 if (!ar->dfs_detector) {
873 len += scnprintf(buf + len, size - len, "DFS not enabled\n");
877 ar->debug.dfs_pool_stats =
878 ar->dfs_detector->get_stats(ar->dfs_detector);
880 len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
882 ATH10K_DFS_STAT("reported phy errors", phy_errors);
883 ATH10K_DFS_STAT("pulse events reported", pulses_total);
884 ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
885 ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
886 ATH10K_DFS_STAT("Radars detected", radar_detected);
888 len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
889 ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
890 ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
891 ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
892 ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
893 ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
894 ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
895 ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
901 retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
907 static const struct file_operations fops_dfs_stats = {
908 .read = ath10k_read_dfs_stats,
910 .owner = THIS_MODULE,
911 .llseek = default_llseek,
914 int ath10k_debug_create(struct ath10k *ar)
916 ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
917 ar->hw->wiphy->debugfsdir);
919 if (!ar->debug.debugfs_phy)
922 INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
923 ath10k_debug_htt_stats_dwork);
925 init_completion(&ar->debug.event_stats_compl);
927 debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
930 debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
933 debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
934 ar, &fops_simulate_fw_crash);
936 debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
939 debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
940 ar, &fops_htt_stats_mask);
942 debugfs_create_file("htt_max_amsdu_ampdu", S_IRUSR | S_IWUSR,
943 ar->debug.debugfs_phy, ar,
944 &fops_htt_max_amsdu_ampdu);
946 debugfs_create_file("fw_dbglog", S_IRUSR, ar->debug.debugfs_phy,
947 ar, &fops_fw_dbglog);
949 if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
950 debugfs_create_file("dfs_simulate_radar", S_IWUSR,
951 ar->debug.debugfs_phy, ar,
952 &fops_simulate_radar);
954 debugfs_create_bool("dfs_block_radar_events", S_IWUSR,
955 ar->debug.debugfs_phy,
956 &ar->dfs_block_radar_events);
958 debugfs_create_file("dfs_stats", S_IRUSR,
959 ar->debug.debugfs_phy, ar,
966 void ath10k_debug_destroy(struct ath10k *ar)
968 cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
971 #endif /* CONFIG_ATH10K_DEBUGFS */
973 #ifdef CONFIG_ATH10K_DEBUG
974 void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
976 struct va_format vaf;
984 if (ath10k_debug_mask & mask)
985 ath10k_printk(KERN_DEBUG, "%pV", &vaf);
987 trace_ath10k_log_dbg(mask, &vaf);
991 EXPORT_SYMBOL(ath10k_dbg);
993 void ath10k_dbg_dump(enum ath10k_debug_mask mask,
994 const char *msg, const char *prefix,
995 const void *buf, size_t len)
997 if (ath10k_debug_mask & mask) {
999 ath10k_dbg(mask, "%s\n", msg);
1001 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
1004 /* tracing code doesn't like null strings :/ */
1005 trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
1008 EXPORT_SYMBOL(ath10k_dbg_dump);
1010 #endif /* CONFIG_ATH10K_DEBUG */