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-rw-r--r--drivers/net/wireless/ath/ath6kl/debug.c935
1 files changed, 935 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
new file mode 100644
index 000000000000..7879b5314285
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -0,0 +1,935 @@
1/*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "core.h"
18
19#include <linux/circ_buf.h>
20#include <linux/fs.h>
21#include <linux/vmalloc.h>
22#include <linux/export.h>
23
24#include "debug.h"
25#include "target.h"
26
27struct ath6kl_fwlog_slot {
28 __le32 timestamp;
29 __le32 length;
30
31 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */
32 u8 payload[0];
33};
34
35#define ATH6KL_FWLOG_SIZE 32768
36#define ATH6KL_FWLOG_SLOT_SIZE (sizeof(struct ath6kl_fwlog_slot) + \
37 ATH6KL_FWLOG_PAYLOAD_SIZE)
38#define ATH6KL_FWLOG_VALID_MASK 0x1ffff
39
40int ath6kl_printk(const char *level, const char *fmt, ...)
41{
42 struct va_format vaf;
43 va_list args;
44 int rtn;
45
46 va_start(args, fmt);
47
48 vaf.fmt = fmt;
49 vaf.va = &args;
50
51 rtn = printk("%sath6kl: %pV", level, &vaf);
52
53 va_end(args);
54
55 return rtn;
56}
57
58#ifdef CONFIG_ATH6KL_DEBUG
59
60#define REG_OUTPUT_LEN_PER_LINE 25
61#define REGTYPE_STR_LEN 100
62
63struct ath6kl_diag_reg_info {
64 u32 reg_start;
65 u32 reg_end;
66 const char *reg_info;
67};
68
69static const struct ath6kl_diag_reg_info diag_reg[] = {
70 { 0x20000, 0x200fc, "General DMA and Rx registers" },
71 { 0x28000, 0x28900, "MAC PCU register & keycache" },
72 { 0x20800, 0x20a40, "QCU" },
73 { 0x21000, 0x212f0, "DCU" },
74 { 0x4000, 0x42e4, "RTC" },
75 { 0x540000, 0x540000 + (256 * 1024), "RAM" },
76 { 0x29800, 0x2B210, "Base Band" },
77 { 0x1C000, 0x1C748, "Analog" },
78};
79
80void ath6kl_dump_registers(struct ath6kl_device *dev,
81 struct ath6kl_irq_proc_registers *irq_proc_reg,
82 struct ath6kl_irq_enable_reg *irq_enable_reg)
83{
84
85 ath6kl_dbg(ATH6KL_DBG_ANY, ("<------- Register Table -------->\n"));
86
87 if (irq_proc_reg != NULL) {
88 ath6kl_dbg(ATH6KL_DBG_ANY,
89 "Host Int status: 0x%x\n",
90 irq_proc_reg->host_int_status);
91 ath6kl_dbg(ATH6KL_DBG_ANY,
92 "CPU Int status: 0x%x\n",
93 irq_proc_reg->cpu_int_status);
94 ath6kl_dbg(ATH6KL_DBG_ANY,
95 "Error Int status: 0x%x\n",
96 irq_proc_reg->error_int_status);
97 ath6kl_dbg(ATH6KL_DBG_ANY,
98 "Counter Int status: 0x%x\n",
99 irq_proc_reg->counter_int_status);
100 ath6kl_dbg(ATH6KL_DBG_ANY,
101 "Mbox Frame: 0x%x\n",
102 irq_proc_reg->mbox_frame);
103 ath6kl_dbg(ATH6KL_DBG_ANY,
104 "Rx Lookahead Valid: 0x%x\n",
105 irq_proc_reg->rx_lkahd_valid);
106 ath6kl_dbg(ATH6KL_DBG_ANY,
107 "Rx Lookahead 0: 0x%x\n",
108 irq_proc_reg->rx_lkahd[0]);
109 ath6kl_dbg(ATH6KL_DBG_ANY,
110 "Rx Lookahead 1: 0x%x\n",
111 irq_proc_reg->rx_lkahd[1]);
112
113 if (dev->ar->mbox_info.gmbox_addr != 0) {
114 /*
115 * If the target supports GMBOX hardware, dump some
116 * additional state.
117 */
118 ath6kl_dbg(ATH6KL_DBG_ANY,
119 "GMBOX Host Int status 2: 0x%x\n",
120 irq_proc_reg->host_int_status2);
121 ath6kl_dbg(ATH6KL_DBG_ANY,
122 "GMBOX RX Avail: 0x%x\n",
123 irq_proc_reg->gmbox_rx_avail);
124 ath6kl_dbg(ATH6KL_DBG_ANY,
125 "GMBOX lookahead alias 0: 0x%x\n",
126 irq_proc_reg->rx_gmbox_lkahd_alias[0]);
127 ath6kl_dbg(ATH6KL_DBG_ANY,
128 "GMBOX lookahead alias 1: 0x%x\n",
129 irq_proc_reg->rx_gmbox_lkahd_alias[1]);
130 }
131
132 }
133
134 if (irq_enable_reg != NULL) {
135 ath6kl_dbg(ATH6KL_DBG_ANY,
136 "Int status Enable: 0x%x\n",
137 irq_enable_reg->int_status_en);
138 ath6kl_dbg(ATH6KL_DBG_ANY, "Counter Int status Enable: 0x%x\n",
139 irq_enable_reg->cntr_int_status_en);
140 }
141 ath6kl_dbg(ATH6KL_DBG_ANY, "<------------------------------->\n");
142}
143
144static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist)
145{
146 ath6kl_dbg(ATH6KL_DBG_ANY,
147 "--- endpoint: %d svc_id: 0x%X ---\n",
148 ep_dist->endpoint, ep_dist->svc_id);
149 ath6kl_dbg(ATH6KL_DBG_ANY, " dist_flags : 0x%X\n",
150 ep_dist->dist_flags);
151 ath6kl_dbg(ATH6KL_DBG_ANY, " cred_norm : %d\n",
152 ep_dist->cred_norm);
153 ath6kl_dbg(ATH6KL_DBG_ANY, " cred_min : %d\n",
154 ep_dist->cred_min);
155 ath6kl_dbg(ATH6KL_DBG_ANY, " credits : %d\n",
156 ep_dist->credits);
157 ath6kl_dbg(ATH6KL_DBG_ANY, " cred_assngd : %d\n",
158 ep_dist->cred_assngd);
159 ath6kl_dbg(ATH6KL_DBG_ANY, " seek_cred : %d\n",
160 ep_dist->seek_cred);
161 ath6kl_dbg(ATH6KL_DBG_ANY, " cred_sz : %d\n",
162 ep_dist->cred_sz);
163 ath6kl_dbg(ATH6KL_DBG_ANY, " cred_per_msg : %d\n",
164 ep_dist->cred_per_msg);
165 ath6kl_dbg(ATH6KL_DBG_ANY, " cred_to_dist : %d\n",
166 ep_dist->cred_to_dist);
167 ath6kl_dbg(ATH6KL_DBG_ANY, " txq_depth : %d\n",
168 get_queue_depth(&((struct htc_endpoint *)
169 ep_dist->htc_rsvd)->txq));
170 ath6kl_dbg(ATH6KL_DBG_ANY,
171 "----------------------------------\n");
172}
173
174void dump_cred_dist_stats(struct htc_target *target)
175{
176 struct htc_endpoint_credit_dist *ep_list;
177
178 if (!AR_DBG_LVL_CHECK(ATH6KL_DBG_TRC))
179 return;
180
181 list_for_each_entry(ep_list, &target->cred_dist_list, list)
182 dump_cred_dist(ep_list);
183
184 ath6kl_dbg(ATH6KL_DBG_HTC_SEND, "ctxt:%p dist:%p\n",
185 target->cred_dist_cntxt, NULL);
186 ath6kl_dbg(ATH6KL_DBG_TRC, "credit distribution, total : %d, free : %d\n",
187 target->cred_dist_cntxt->total_avail_credits,
188 target->cred_dist_cntxt->cur_free_credits);
189}
190
191static int ath6kl_debugfs_open(struct inode *inode, struct file *file)
192{
193 file->private_data = inode->i_private;
194 return 0;
195}
196
197void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war)
198{
199 switch (war) {
200 case ATH6KL_WAR_INVALID_RATE:
201 ar->debug.war_stats.invalid_rate++;
202 break;
203 }
204}
205
206static ssize_t read_file_war_stats(struct file *file, char __user *user_buf,
207 size_t count, loff_t *ppos)
208{
209 struct ath6kl *ar = file->private_data;
210 char *buf;
211 unsigned int len = 0, buf_len = 1500;
212 ssize_t ret_cnt;
213
214 buf = kzalloc(buf_len, GFP_KERNEL);
215 if (!buf)
216 return -ENOMEM;
217
218 len += scnprintf(buf + len, buf_len - len, "\n");
219 len += scnprintf(buf + len, buf_len - len, "%25s\n",
220 "Workaround stats");
221 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
222 "=================");
223 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n",
224 "Invalid rates", ar->debug.war_stats.invalid_rate);
225
226 if (WARN_ON(len > buf_len))
227 len = buf_len;
228
229 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
230
231 kfree(buf);
232 return ret_cnt;
233}
234
235static const struct file_operations fops_war_stats = {
236 .read = read_file_war_stats,
237 .open = ath6kl_debugfs_open,
238 .owner = THIS_MODULE,
239 .llseek = default_llseek,
240};
241
242static void ath6kl_debug_fwlog_add(struct ath6kl *ar, const void *buf,
243 size_t buf_len)
244{
245 struct circ_buf *fwlog = &ar->debug.fwlog_buf;
246 size_t space;
247 int i;
248
249 /* entries must all be equal size */
250 if (WARN_ON(buf_len != ATH6KL_FWLOG_SLOT_SIZE))
251 return;
252
253 space = CIRC_SPACE(fwlog->head, fwlog->tail, ATH6KL_FWLOG_SIZE);
254 if (space < buf_len)
255 /* discard oldest slot */
256 fwlog->tail = (fwlog->tail + ATH6KL_FWLOG_SLOT_SIZE) &
257 (ATH6KL_FWLOG_SIZE - 1);
258
259 for (i = 0; i < buf_len; i += space) {
260 space = CIRC_SPACE_TO_END(fwlog->head, fwlog->tail,
261 ATH6KL_FWLOG_SIZE);
262
263 if ((size_t) space > buf_len - i)
264 space = buf_len - i;
265
266 memcpy(&fwlog->buf[fwlog->head], buf, space);
267 fwlog->head = (fwlog->head + space) & (ATH6KL_FWLOG_SIZE - 1);
268 }
269
270}
271
272void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len)
273{
274 struct ath6kl_fwlog_slot *slot = ar->debug.fwlog_tmp;
275 size_t slot_len;
276
277 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE))
278 return;
279
280 spin_lock_bh(&ar->debug.fwlog_lock);
281
282 slot->timestamp = cpu_to_le32(jiffies);
283 slot->length = cpu_to_le32(len);
284 memcpy(slot->payload, buf, len);
285
286 slot_len = sizeof(*slot) + len;
287
288 if (slot_len < ATH6KL_FWLOG_SLOT_SIZE)
289 memset(slot->payload + len, 0,
290 ATH6KL_FWLOG_SLOT_SIZE - slot_len);
291
292 ath6kl_debug_fwlog_add(ar, slot, ATH6KL_FWLOG_SLOT_SIZE);
293
294 spin_unlock_bh(&ar->debug.fwlog_lock);
295}
296
297static bool ath6kl_debug_fwlog_empty(struct ath6kl *ar)
298{
299 return CIRC_CNT(ar->debug.fwlog_buf.head,
300 ar->debug.fwlog_buf.tail,
301 ATH6KL_FWLOG_SLOT_SIZE) == 0;
302}
303
304static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf,
305 size_t count, loff_t *ppos)
306{
307 struct ath6kl *ar = file->private_data;
308 struct circ_buf *fwlog = &ar->debug.fwlog_buf;
309 size_t len = 0, buf_len = count;
310 ssize_t ret_cnt;
311 char *buf;
312 int ccnt;
313
314 buf = vmalloc(buf_len);
315 if (!buf)
316 return -ENOMEM;
317
318 /* read undelivered logs from firmware */
319 ath6kl_read_fwlogs(ar);
320
321 spin_lock_bh(&ar->debug.fwlog_lock);
322
323 while (len < buf_len && !ath6kl_debug_fwlog_empty(ar)) {
324 ccnt = CIRC_CNT_TO_END(fwlog->head, fwlog->tail,
325 ATH6KL_FWLOG_SIZE);
326
327 if ((size_t) ccnt > buf_len - len)
328 ccnt = buf_len - len;
329
330 memcpy(buf + len, &fwlog->buf[fwlog->tail], ccnt);
331 len += ccnt;
332
333 fwlog->tail = (fwlog->tail + ccnt) &
334 (ATH6KL_FWLOG_SIZE - 1);
335 }
336
337 spin_unlock_bh(&ar->debug.fwlog_lock);
338
339 if (WARN_ON(len > buf_len))
340 len = buf_len;
341
342 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
343
344 vfree(buf);
345
346 return ret_cnt;
347}
348
349static const struct file_operations fops_fwlog = {
350 .open = ath6kl_debugfs_open,
351 .read = ath6kl_fwlog_read,
352 .owner = THIS_MODULE,
353 .llseek = default_llseek,
354};
355
356static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf,
357 size_t count, loff_t *ppos)
358{
359 struct ath6kl *ar = file->private_data;
360 char buf[16];
361 int len;
362
363 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
364
365 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
366}
367
368static ssize_t ath6kl_fwlog_mask_write(struct file *file,
369 const char __user *user_buf,
370 size_t count, loff_t *ppos)
371{
372 struct ath6kl *ar = file->private_data;
373 int ret;
374
375 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
376 if (ret)
377 return ret;
378
379 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
380 ATH6KL_FWLOG_VALID_MASK,
381 ar->debug.fwlog_mask);
382 if (ret)
383 return ret;
384
385 return count;
386}
387
388static const struct file_operations fops_fwlog_mask = {
389 .open = ath6kl_debugfs_open,
390 .read = ath6kl_fwlog_mask_read,
391 .write = ath6kl_fwlog_mask_write,
392 .owner = THIS_MODULE,
393 .llseek = default_llseek,
394};
395
396static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
397 size_t count, loff_t *ppos)
398{
399 struct ath6kl *ar = file->private_data;
400 struct target_stats *tgt_stats = &ar->target_stats;
401 char *buf;
402 unsigned int len = 0, buf_len = 1500;
403 int i;
404 long left;
405 ssize_t ret_cnt;
406
407 buf = kzalloc(buf_len, GFP_KERNEL);
408 if (!buf)
409 return -ENOMEM;
410
411 if (down_interruptible(&ar->sem)) {
412 kfree(buf);
413 return -EBUSY;
414 }
415
416 set_bit(STATS_UPDATE_PEND, &ar->flag);
417
418 if (ath6kl_wmi_get_stats_cmd(ar->wmi)) {
419 up(&ar->sem);
420 kfree(buf);
421 return -EIO;
422 }
423
424 left = wait_event_interruptible_timeout(ar->event_wq,
425 !test_bit(STATS_UPDATE_PEND,
426 &ar->flag), WMI_TIMEOUT);
427
428 up(&ar->sem);
429
430 if (left <= 0) {
431 kfree(buf);
432 return -ETIMEDOUT;
433 }
434
435 len += scnprintf(buf + len, buf_len - len, "\n");
436 len += scnprintf(buf + len, buf_len - len, "%25s\n",
437 "Target Tx stats");
438 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
439 "=================");
440 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
441 "Ucast packets", tgt_stats->tx_ucast_pkt);
442 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
443 "Bcast packets", tgt_stats->tx_bcast_pkt);
444 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
445 "Ucast byte", tgt_stats->tx_ucast_byte);
446 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
447 "Bcast byte", tgt_stats->tx_bcast_byte);
448 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
449 "Rts success cnt", tgt_stats->tx_rts_success_cnt);
450 for (i = 0; i < 4; i++)
451 len += scnprintf(buf + len, buf_len - len,
452 "%18s %d %10llu\n", "PER on ac",
453 i, tgt_stats->tx_pkt_per_ac[i]);
454 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
455 "Error", tgt_stats->tx_err);
456 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
457 "Fail count", tgt_stats->tx_fail_cnt);
458 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
459 "Retry count", tgt_stats->tx_retry_cnt);
460 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
461 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
462 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
463 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
464 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
465 "TKIP counter measure used",
466 tgt_stats->tkip_cnter_measures_invoked);
467
468 len += scnprintf(buf + len, buf_len - len, "%25s\n",
469 "Target Rx stats");
470 len += scnprintf(buf + len, buf_len - len, "%25s\n",
471 "=================");
472
473 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
474 "Ucast packets", tgt_stats->rx_ucast_pkt);
475 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
476 "Ucast Rate", tgt_stats->rx_ucast_rate);
477 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
478 "Bcast packets", tgt_stats->rx_bcast_pkt);
479 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
480 "Ucast byte", tgt_stats->rx_ucast_byte);
481 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
482 "Bcast byte", tgt_stats->rx_bcast_byte);
483 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
484 "Fragmented pkt", tgt_stats->rx_frgment_pkt);
485 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
486 "Error", tgt_stats->rx_err);
487 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
488 "CRC Err", tgt_stats->rx_crc_err);
489 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
490 "Key chache miss", tgt_stats->rx_key_cache_miss);
491 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
492 "Decrypt Err", tgt_stats->rx_decrypt_err);
493 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
494 "Duplicate frame", tgt_stats->rx_dupl_frame);
495 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
496 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
497 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
498 "TKIP format err", tgt_stats->tkip_fmt_err);
499 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
500 "CCMP format Err", tgt_stats->ccmp_fmt_err);
501 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
502 "CCMP Replay Err", tgt_stats->ccmp_replays);
503
504 len += scnprintf(buf + len, buf_len - len, "%25s\n",
505 "Misc Target stats");
506 len += scnprintf(buf + len, buf_len - len, "%25s\n",
507 "=================");
508 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
509 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);
510 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
511 "Num Connects", tgt_stats->cs_connect_cnt);
512 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
513 "Num disconnects", tgt_stats->cs_discon_cnt);
514 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
515 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
516
517 if (len > buf_len)
518 len = buf_len;
519
520 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
521
522 kfree(buf);
523 return ret_cnt;
524}
525
526static const struct file_operations fops_tgt_stats = {
527 .read = read_file_tgt_stats,
528 .open = ath6kl_debugfs_open,
529 .owner = THIS_MODULE,
530 .llseek = default_llseek,
531};
532
533#define print_credit_info(fmt_str, ep_list_field) \
534 (len += scnprintf(buf + len, buf_len - len, fmt_str, \
535 ep_list->ep_list_field))
536#define CREDIT_INFO_DISPLAY_STRING_LEN 200
537#define CREDIT_INFO_LEN 128
538
539static ssize_t read_file_credit_dist_stats(struct file *file,
540 char __user *user_buf,
541 size_t count, loff_t *ppos)
542{
543 struct ath6kl *ar = file->private_data;
544 struct htc_target *target = ar->htc_target;
545 struct htc_endpoint_credit_dist *ep_list;
546 char *buf;
547 unsigned int buf_len, len = 0;
548 ssize_t ret_cnt;
549
550 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
551 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
552 buf = kzalloc(buf_len, GFP_KERNEL);
553 if (!buf)
554 return -ENOMEM;
555
556 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
557 "Total Avail Credits: ",
558 target->cred_dist_cntxt->total_avail_credits);
559 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
560 "Free credits :",
561 target->cred_dist_cntxt->cur_free_credits);
562
563 len += scnprintf(buf + len, buf_len - len,
564 " Epid Flags Cred_norm Cred_min Credits Cred_assngd"
565 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
566 " qdepth\n");
567
568 list_for_each_entry(ep_list, &target->cred_dist_list, list) {
569 print_credit_info(" %2d", endpoint);
570 print_credit_info("%10x", dist_flags);
571 print_credit_info("%8d", cred_norm);
572 print_credit_info("%9d", cred_min);
573 print_credit_info("%9d", credits);
574 print_credit_info("%10d", cred_assngd);
575 print_credit_info("%13d", seek_cred);
576 print_credit_info("%12d", cred_sz);
577 print_credit_info("%9d", cred_per_msg);
578 print_credit_info("%14d", cred_to_dist);
579 len += scnprintf(buf + len, buf_len - len, "%12d\n",
580 get_queue_depth(&((struct htc_endpoint *)
581 ep_list->htc_rsvd)->txq));
582 }
583
584 if (len > buf_len)
585 len = buf_len;
586
587 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
588 kfree(buf);
589 return ret_cnt;
590}
591
592static const struct file_operations fops_credit_dist_stats = {
593 .read = read_file_credit_dist_stats,
594 .open = ath6kl_debugfs_open,
595 .owner = THIS_MODULE,
596 .llseek = default_llseek,
597};
598
599static unsigned long ath6kl_get_num_reg(void)
600{
601 int i;
602 unsigned long n_reg = 0;
603
604 for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
605 n_reg = n_reg +
606 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
607
608 return n_reg;
609}
610
611static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
612{
613 int i;
614
615 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
616 if (reg_addr >= diag_reg[i].reg_start &&
617 reg_addr <= diag_reg[i].reg_end)
618 return true;
619 }
620
621 return false;
622}
623
624static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
625 size_t count, loff_t *ppos)
626{
627 struct ath6kl *ar = file->private_data;
628 u8 buf[50];
629 unsigned int len = 0;
630
631 if (ar->debug.dbgfs_diag_reg)
632 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
633 ar->debug.dbgfs_diag_reg);
634 else
635 len += scnprintf(buf + len, sizeof(buf) - len,
636 "All diag registers\n");
637
638 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
639}
640
641static ssize_t ath6kl_regread_write(struct file *file,
642 const char __user *user_buf,
643 size_t count, loff_t *ppos)
644{
645 struct ath6kl *ar = file->private_data;
646 u8 buf[50];
647 unsigned int len;
648 unsigned long reg_addr;
649
650 len = min(count, sizeof(buf) - 1);
651 if (copy_from_user(buf, user_buf, len))
652 return -EFAULT;
653
654 buf[len] = '\0';
655
656 if (strict_strtoul(buf, 0, &reg_addr))
657 return -EINVAL;
658
659 if ((reg_addr % 4) != 0)
660 return -EINVAL;
661
662 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
663 return -EINVAL;
664
665 ar->debug.dbgfs_diag_reg = reg_addr;
666
667 return count;
668}
669
670static const struct file_operations fops_diag_reg_read = {
671 .read = ath6kl_regread_read,
672 .write = ath6kl_regread_write,
673 .open = ath6kl_debugfs_open,
674 .owner = THIS_MODULE,
675 .llseek = default_llseek,
676};
677
678static int ath6kl_regdump_open(struct inode *inode, struct file *file)
679{
680 struct ath6kl *ar = inode->i_private;
681 u8 *buf;
682 unsigned long int reg_len;
683 unsigned int len = 0, n_reg;
684 u32 addr;
685 __le32 reg_val;
686 int i, status;
687
688 /* Dump all the registers if no register is specified */
689 if (!ar->debug.dbgfs_diag_reg)
690 n_reg = ath6kl_get_num_reg();
691 else
692 n_reg = 1;
693
694 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
695 if (n_reg > 1)
696 reg_len += REGTYPE_STR_LEN;
697
698 buf = vmalloc(reg_len);
699 if (!buf)
700 return -ENOMEM;
701
702 if (n_reg == 1) {
703 addr = ar->debug.dbgfs_diag_reg;
704
705 status = ath6kl_diag_read32(ar,
706 TARG_VTOP(ar->target_type, addr),
707 (u32 *)&reg_val);
708 if (status)
709 goto fail_reg_read;
710
711 len += scnprintf(buf + len, reg_len - len,
712 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
713 goto done;
714 }
715
716 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
717 len += scnprintf(buf + len, reg_len - len,
718 "%s\n", diag_reg[i].reg_info);
719 for (addr = diag_reg[i].reg_start;
720 addr <= diag_reg[i].reg_end; addr += 4) {
721 status = ath6kl_diag_read32(ar,
722 TARG_VTOP(ar->target_type, addr),
723 (u32 *)&reg_val);
724 if (status)
725 goto fail_reg_read;
726
727 len += scnprintf(buf + len, reg_len - len,
728 "0x%06x 0x%08x\n",
729 addr, le32_to_cpu(reg_val));
730 }
731 }
732
733done:
734 file->private_data = buf;
735 return 0;
736
737fail_reg_read:
738 ath6kl_warn("Unable to read memory:%u\n", addr);
739 vfree(buf);
740 return -EIO;
741}
742
743static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
744 size_t count, loff_t *ppos)
745{
746 u8 *buf = file->private_data;
747 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
748}
749
750static int ath6kl_regdump_release(struct inode *inode, struct file *file)
751{
752 vfree(file->private_data);
753 return 0;
754}
755
756static const struct file_operations fops_reg_dump = {
757 .open = ath6kl_regdump_open,
758 .read = ath6kl_regdump_read,
759 .release = ath6kl_regdump_release,
760 .owner = THIS_MODULE,
761 .llseek = default_llseek,
762};
763
764static ssize_t ath6kl_lrssi_roam_write(struct file *file,
765 const char __user *user_buf,
766 size_t count, loff_t *ppos)
767{
768 struct ath6kl *ar = file->private_data;
769 unsigned long lrssi_roam_threshold;
770 char buf[32];
771 ssize_t len;
772
773 len = min(count, sizeof(buf) - 1);
774 if (copy_from_user(buf, user_buf, len))
775 return -EFAULT;
776
777 buf[len] = '\0';
778 if (strict_strtoul(buf, 0, &lrssi_roam_threshold))
779 return -EINVAL;
780
781 ar->lrssi_roam_threshold = lrssi_roam_threshold;
782
783 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold);
784
785 return count;
786}
787
788static ssize_t ath6kl_lrssi_roam_read(struct file *file,
789 char __user *user_buf,
790 size_t count, loff_t *ppos)
791{
792 struct ath6kl *ar = file->private_data;
793 char buf[32];
794 unsigned int len;
795
796 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold);
797
798 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
799}
800
801static const struct file_operations fops_lrssi_roam_threshold = {
802 .read = ath6kl_lrssi_roam_read,
803 .write = ath6kl_lrssi_roam_write,
804 .open = ath6kl_debugfs_open,
805 .owner = THIS_MODULE,
806 .llseek = default_llseek,
807};
808
809static ssize_t ath6kl_regwrite_read(struct file *file,
810 char __user *user_buf,
811 size_t count, loff_t *ppos)
812{
813 struct ath6kl *ar = file->private_data;
814 u8 buf[32];
815 unsigned int len = 0;
816
817 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n",
818 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr);
819
820 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
821}
822
823static ssize_t ath6kl_regwrite_write(struct file *file,
824 const char __user *user_buf,
825 size_t count, loff_t *ppos)
826{
827 struct ath6kl *ar = file->private_data;
828 char buf[32];
829 char *sptr, *token;
830 unsigned int len = 0;
831 u32 reg_addr, reg_val;
832
833 len = min(count, sizeof(buf) - 1);
834 if (copy_from_user(buf, user_buf, len))
835 return -EFAULT;
836
837 buf[len] = '\0';
838 sptr = buf;
839
840 token = strsep(&sptr, "=");
841 if (!token)
842 return -EINVAL;
843
844 if (kstrtou32(token, 0, &reg_addr))
845 return -EINVAL;
846
847 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr))
848 return -EINVAL;
849
850 if (kstrtou32(sptr, 0, &reg_val))
851 return -EINVAL;
852
853 ar->debug.diag_reg_addr_wr = reg_addr;
854 ar->debug.diag_reg_val_wr = reg_val;
855
856 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr,
857 cpu_to_le32(ar->debug.diag_reg_val_wr)))
858 return -EIO;
859
860 return count;
861}
862
863static const struct file_operations fops_diag_reg_write = {
864 .read = ath6kl_regwrite_read,
865 .write = ath6kl_regwrite_write,
866 .open = ath6kl_debugfs_open,
867 .owner = THIS_MODULE,
868 .llseek = default_llseek,
869};
870
871int ath6kl_debug_init(struct ath6kl *ar)
872{
873 ar->debug.fwlog_buf.buf = vmalloc(ATH6KL_FWLOG_SIZE);
874 if (ar->debug.fwlog_buf.buf == NULL)
875 return -ENOMEM;
876
877 ar->debug.fwlog_tmp = kmalloc(ATH6KL_FWLOG_SLOT_SIZE, GFP_KERNEL);
878 if (ar->debug.fwlog_tmp == NULL) {
879 vfree(ar->debug.fwlog_buf.buf);
880 return -ENOMEM;
881 }
882
883 spin_lock_init(&ar->debug.fwlog_lock);
884
885 /*
886 * Actually we are lying here but don't know how to read the mask
887 * value from the firmware.
888 */
889 ar->debug.fwlog_mask = 0;
890
891 ar->debugfs_phy = debugfs_create_dir("ath6kl",
892 ar->wdev->wiphy->debugfsdir);
893 if (!ar->debugfs_phy) {
894 vfree(ar->debug.fwlog_buf.buf);
895 kfree(ar->debug.fwlog_tmp);
896 return -ENOMEM;
897 }
898
899 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
900 &fops_tgt_stats);
901
902 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar,
903 &fops_credit_dist_stats);
904
905 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar,
906 &fops_fwlog);
907
908 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy,
909 ar, &fops_fwlog_mask);
910
911 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
912 &fops_diag_reg_read);
913
914 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar,
915 &fops_reg_dump);
916
917 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR,
918 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold);
919
920 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR,
921 ar->debugfs_phy, ar, &fops_diag_reg_write);
922
923 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar,
924 &fops_war_stats);
925
926 return 0;
927}
928
929void ath6kl_debug_cleanup(struct ath6kl *ar)
930{
931 vfree(ar->debug.fwlog_buf.buf);
932 kfree(ar->debug.fwlog_tmp);
933}
934
935#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-03 22:29:04 -0400