?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / net / wireless / ath / ath6kl / debug.c
blobeb808b46f94cec1010a16e0733f9dacbf5ee4147
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
27 struct 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
40 int 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
63 struct ath6kl_diag_reg_info {
64 u32 reg_start;
65 u32 reg_end;
66 const char *reg_info;
67 };
68
69 static 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
80 void 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
144 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist)
145 {
146 ath6kl_dbg(ATH6KL_DBG_CREDIT,
147 "--- endpoint: %d svc_id: 0x%X ---\n",
148 ep_dist->endpoint, ep_dist->svc_id);
149 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n",
150 ep_dist->dist_flags);
151 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n",
152 ep_dist->cred_norm);
153 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n",
154 ep_dist->cred_min);
155 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n",
156 ep_dist->credits);
157 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n",
158 ep_dist->cred_assngd);
159 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n",
160 ep_dist->seek_cred);
161 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n",
162 ep_dist->cred_sz);
163 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n",
164 ep_dist->cred_per_msg);
165 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n",
166 ep_dist->cred_to_dist);
167 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n",
168 get_queue_depth(&ep_dist->htc_ep->txq));
169 ath6kl_dbg(ATH6KL_DBG_CREDIT,
170 "----------------------------------\n");
171 }
172
173 /* FIXME: move to htc.c */
174 void 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_CREDIT))
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_CREDIT,
185 "credit distribution total %d free %d\n",
186 target->credit_info->total_avail_credits,
187 target->credit_info->cur_free_credits);
188 }
189
190 static int ath6kl_debugfs_open(struct inode *inode, struct file *file)
191 {
192 file->private_data = inode->i_private;
193 return 0;
194 }
195
196 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war)
197 {
198 switch (war) {
199 case ATH6KL_WAR_INVALID_RATE:
200 ar->debug.war_stats.invalid_rate++;
201 break;
202 }
203 }
204
205 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf,
206 size_t count, loff_t *ppos)
207 {
208 struct ath6kl *ar = file->private_data;
209 char *buf;
210 unsigned int len = 0, buf_len = 1500;
211 ssize_t ret_cnt;
212
213 buf = kzalloc(buf_len, GFP_KERNEL);
214 if (!buf)
215 return -ENOMEM;
216
217 len += scnprintf(buf + len, buf_len - len, "\n");
218 len += scnprintf(buf + len, buf_len - len, "%25s\n",
219 "Workaround stats");
220 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
221 "=================");
222 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n",
223 "Invalid rates", ar->debug.war_stats.invalid_rate);
224
225 if (WARN_ON(len > buf_len))
226 len = buf_len;
227
228 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
229
230 kfree(buf);
231 return ret_cnt;
232 }
233
234 static const struct file_operations fops_war_stats = {
235 .read = read_file_war_stats,
236 .open = ath6kl_debugfs_open,
237 .owner = THIS_MODULE,
238 .llseek = default_llseek,
239 };
240
241 static void ath6kl_debug_fwlog_add(struct ath6kl *ar, const void *buf,
242 size_t buf_len)
243 {
244 struct circ_buf *fwlog = &ar->debug.fwlog_buf;
245 size_t space;
246 int i;
247
248 /* entries must all be equal size */
249 if (WARN_ON(buf_len != ATH6KL_FWLOG_SLOT_SIZE))
250 return;
251
252 space = CIRC_SPACE(fwlog->head, fwlog->tail, ATH6KL_FWLOG_SIZE);
253 if (space < buf_len)
254 /* discard oldest slot */
255 fwlog->tail = (fwlog->tail + ATH6KL_FWLOG_SLOT_SIZE) &
256 (ATH6KL_FWLOG_SIZE - 1);
257
258 for (i = 0; i < buf_len; i += space) {
259 space = CIRC_SPACE_TO_END(fwlog->head, fwlog->tail,
260 ATH6KL_FWLOG_SIZE);
261
262 if ((size_t) space > buf_len - i)
263 space = buf_len - i;
264
265 memcpy(&fwlog->buf[fwlog->head], buf, space);
266 fwlog->head = (fwlog->head + space) & (ATH6KL_FWLOG_SIZE - 1);
267 }
268
269 }
270
271 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len)
272 {
273 struct ath6kl_fwlog_slot *slot = ar->debug.fwlog_tmp;
274 size_t slot_len;
275
276 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE))
277 return;
278
279 spin_lock_bh(&ar->debug.fwlog_lock);
280
281 slot->timestamp = cpu_to_le32(jiffies);
282 slot->length = cpu_to_le32(len);
283 memcpy(slot->payload, buf, len);
284
285 slot_len = sizeof(*slot) + len;
286
287 if (slot_len < ATH6KL_FWLOG_SLOT_SIZE)
288 memset(slot->payload + len, 0,
289 ATH6KL_FWLOG_SLOT_SIZE - slot_len);
290
291 ath6kl_debug_fwlog_add(ar, slot, ATH6KL_FWLOG_SLOT_SIZE);
292
293 spin_unlock_bh(&ar->debug.fwlog_lock);
294 }
295
296 static bool ath6kl_debug_fwlog_empty(struct ath6kl *ar)
297 {
298 return CIRC_CNT(ar->debug.fwlog_buf.head,
299 ar->debug.fwlog_buf.tail,
300 ATH6KL_FWLOG_SLOT_SIZE) == 0;
301 }
302
303 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf,
304 size_t count, loff_t *ppos)
305 {
306 struct ath6kl *ar = file->private_data;
307 struct circ_buf *fwlog = &ar->debug.fwlog_buf;
308 size_t len = 0, buf_len = count;
309 ssize_t ret_cnt;
310 char *buf;
311 int ccnt;
312
313 buf = vmalloc(buf_len);
314 if (!buf)
315 return -ENOMEM;
316
317 /* read undelivered logs from firmware */
318 ath6kl_read_fwlogs(ar);
319
320 spin_lock_bh(&ar->debug.fwlog_lock);
321
322 while (len < buf_len && !ath6kl_debug_fwlog_empty(ar)) {
323 ccnt = CIRC_CNT_TO_END(fwlog->head, fwlog->tail,
324 ATH6KL_FWLOG_SIZE);
325
326 if ((size_t) ccnt > buf_len - len)
327 ccnt = buf_len - len;
328
329 memcpy(buf + len, &fwlog->buf[fwlog->tail], ccnt);
330 len += ccnt;
331
332 fwlog->tail = (fwlog->tail + ccnt) &
333 (ATH6KL_FWLOG_SIZE - 1);
334 }
335
336 spin_unlock_bh(&ar->debug.fwlog_lock);
337
338 if (WARN_ON(len > buf_len))
339 len = buf_len;
340
341 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
342
343 vfree(buf);
344
345 return ret_cnt;
346 }
347
348 static const struct file_operations fops_fwlog = {
349 .open = ath6kl_debugfs_open,
350 .read = ath6kl_fwlog_read,
351 .owner = THIS_MODULE,
352 .llseek = default_llseek,
353 };
354
355 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf,
356 size_t count, loff_t *ppos)
357 {
358 struct ath6kl *ar = file->private_data;
359 char buf[16];
360 int len;
361
362 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
363
364 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
365 }
366
367 static ssize_t ath6kl_fwlog_mask_write(struct file *file,
368 const char __user *user_buf,
369 size_t count, loff_t *ppos)
370 {
371 struct ath6kl *ar = file->private_data;
372 int ret;
373
374 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
375 if (ret)
376 return ret;
377
378 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
379 ATH6KL_FWLOG_VALID_MASK,
380 ar->debug.fwlog_mask);
381 if (ret)
382 return ret;
383
384 return count;
385 }
386
387 static const struct file_operations fops_fwlog_mask = {
388 .open = ath6kl_debugfs_open,
389 .read = ath6kl_fwlog_mask_read,
390 .write = ath6kl_fwlog_mask_write,
391 .owner = THIS_MODULE,
392 .llseek = default_llseek,
393 };
394
395 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
396 size_t count, loff_t *ppos)
397 {
398 struct ath6kl *ar = file->private_data;
399 struct ath6kl_vif *vif;
400 struct target_stats *tgt_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 vif = ath6kl_vif_first(ar);
408 if (!vif)
409 return -EIO;
410
411 tgt_stats = &vif->target_stats;
412
413 buf = kzalloc(buf_len, GFP_KERNEL);
414 if (!buf)
415 return -ENOMEM;
416
417 if (down_interruptible(&ar->sem)) {
418 kfree(buf);
419 return -EBUSY;
420 }
421
422 set_bit(STATS_UPDATE_PEND, &vif->flags);
423
424 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
425 up(&ar->sem);
426 kfree(buf);
427 return -EIO;
428 }
429
430 left = wait_event_interruptible_timeout(ar->event_wq,
431 !test_bit(STATS_UPDATE_PEND,
432 &vif->flags), WMI_TIMEOUT);
433
434 up(&ar->sem);
435
436 if (left <= 0) {
437 kfree(buf);
438 return -ETIMEDOUT;
439 }
440
441 len += scnprintf(buf + len, buf_len - len, "\n");
442 len += scnprintf(buf + len, buf_len - len, "%25s\n",
443 "Target Tx stats");
444 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
445 "=================");
446 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
447 "Ucast packets", tgt_stats->tx_ucast_pkt);
448 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
449 "Bcast packets", tgt_stats->tx_bcast_pkt);
450 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
451 "Ucast byte", tgt_stats->tx_ucast_byte);
452 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
453 "Bcast byte", tgt_stats->tx_bcast_byte);
454 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
455 "Rts success cnt", tgt_stats->tx_rts_success_cnt);
456 for (i = 0; i < 4; i++)
457 len += scnprintf(buf + len, buf_len - len,
458 "%18s %d %10llu\n", "PER on ac",
459 i, tgt_stats->tx_pkt_per_ac[i]);
460 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
461 "Error", tgt_stats->tx_err);
462 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
463 "Fail count", tgt_stats->tx_fail_cnt);
464 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
465 "Retry count", tgt_stats->tx_retry_cnt);
466 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
467 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
468 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
469 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
470 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
471 "TKIP counter measure used",
472 tgt_stats->tkip_cnter_measures_invoked);
473
474 len += scnprintf(buf + len, buf_len - len, "%25s\n",
475 "Target Rx stats");
476 len += scnprintf(buf + len, buf_len - len, "%25s\n",
477 "=================");
478
479 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
480 "Ucast packets", tgt_stats->rx_ucast_pkt);
481 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
482 "Ucast Rate", tgt_stats->rx_ucast_rate);
483 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
484 "Bcast packets", tgt_stats->rx_bcast_pkt);
485 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
486 "Ucast byte", tgt_stats->rx_ucast_byte);
487 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
488 "Bcast byte", tgt_stats->rx_bcast_byte);
489 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
490 "Fragmented pkt", tgt_stats->rx_frgment_pkt);
491 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
492 "Error", tgt_stats->rx_err);
493 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
494 "CRC Err", tgt_stats->rx_crc_err);
495 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
496 "Key chache miss", tgt_stats->rx_key_cache_miss);
497 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
498 "Decrypt Err", tgt_stats->rx_decrypt_err);
499 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
500 "Duplicate frame", tgt_stats->rx_dupl_frame);
501 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
502 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
503 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
504 "TKIP format err", tgt_stats->tkip_fmt_err);
505 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
506 "CCMP format Err", tgt_stats->ccmp_fmt_err);
507 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
508 "CCMP Replay Err", tgt_stats->ccmp_replays);
509
510 len += scnprintf(buf + len, buf_len - len, "%25s\n",
511 "Misc Target stats");
512 len += scnprintf(buf + len, buf_len - len, "%25s\n",
513 "=================");
514 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
515 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);
516 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
517 "Num Connects", tgt_stats->cs_connect_cnt);
518 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
519 "Num disconnects", tgt_stats->cs_discon_cnt);
520 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
521 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
522
523 if (len > buf_len)
524 len = buf_len;
525
526 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
527
528 kfree(buf);
529 return ret_cnt;
530 }
531
532 static const struct file_operations fops_tgt_stats = {
533 .read = read_file_tgt_stats,
534 .open = ath6kl_debugfs_open,
535 .owner = THIS_MODULE,
536 .llseek = default_llseek,
537 };
538
539 #define print_credit_info(fmt_str, ep_list_field) \
540 (len += scnprintf(buf + len, buf_len - len, fmt_str, \
541 ep_list->ep_list_field))
542 #define CREDIT_INFO_DISPLAY_STRING_LEN 200
543 #define CREDIT_INFO_LEN 128
544
545 static ssize_t read_file_credit_dist_stats(struct file *file,
546 char __user *user_buf,
547 size_t count, loff_t *ppos)
548 {
549 struct ath6kl *ar = file->private_data;
550 struct htc_target *target = ar->htc_target;
551 struct htc_endpoint_credit_dist *ep_list;
552 char *buf;
553 unsigned int buf_len, len = 0;
554 ssize_t ret_cnt;
555
556 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
557 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
558 buf = kzalloc(buf_len, GFP_KERNEL);
559 if (!buf)
560 return -ENOMEM;
561
562 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
563 "Total Avail Credits: ",
564 target->credit_info->total_avail_credits);
565 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
566 "Free credits :",
567 target->credit_info->cur_free_credits);
568
569 len += scnprintf(buf + len, buf_len - len,
570 " Epid Flags Cred_norm Cred_min Credits Cred_assngd"
571 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
572 " qdepth\n");
573
574 list_for_each_entry(ep_list, &target->cred_dist_list, list) {
575 print_credit_info(" %2d", endpoint);
576 print_credit_info("%10x", dist_flags);
577 print_credit_info("%8d", cred_norm);
578 print_credit_info("%9d", cred_min);
579 print_credit_info("%9d", credits);
580 print_credit_info("%10d", cred_assngd);
581 print_credit_info("%13d", seek_cred);
582 print_credit_info("%12d", cred_sz);
583 print_credit_info("%9d", cred_per_msg);
584 print_credit_info("%14d", cred_to_dist);
585 len += scnprintf(buf + len, buf_len - len, "%12d\n",
586 get_queue_depth(&ep_list->htc_ep->txq));
587 }
588
589 if (len > buf_len)
590 len = buf_len;
591
592 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
593 kfree(buf);
594 return ret_cnt;
595 }
596
597 static const struct file_operations fops_credit_dist_stats = {
598 .read = read_file_credit_dist_stats,
599 .open = ath6kl_debugfs_open,
600 .owner = THIS_MODULE,
601 .llseek = default_llseek,
602 };
603
604 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf,
605 unsigned int buf_len, unsigned int len,
606 int offset, const char *name)
607 {
608 int i;
609 struct htc_endpoint_stats *ep_st;
610 u32 *counter;
611
612 len += scnprintf(buf + len, buf_len - len, "%s:", name);
613 for (i = 0; i < ENDPOINT_MAX; i++) {
614 ep_st = &target->endpoint[i].ep_st;
615 counter = ((u32 *) ep_st) + (offset / 4);
616 len += scnprintf(buf + len, buf_len - len, " %u", *counter);
617 }
618 len += scnprintf(buf + len, buf_len - len, "\n");
619
620 return len;
621 }
622
623 static ssize_t ath6kl_endpoint_stats_read(struct file *file,
624 char __user *user_buf,
625 size_t count, loff_t *ppos)
626 {
627 struct ath6kl *ar = file->private_data;
628 struct htc_target *target = ar->htc_target;
629 char *buf;
630 unsigned int buf_len, len = 0;
631 ssize_t ret_cnt;
632
633 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) *
634 (25 + ENDPOINT_MAX * 11);
635 buf = kmalloc(buf_len, GFP_KERNEL);
636 if (!buf)
637 return -ENOMEM;
638
639 #define EPSTAT(name) \
640 len = print_endpoint_stat(target, buf, buf_len, len, \
641 offsetof(struct htc_endpoint_stats, name), \
642 #name)
643 EPSTAT(cred_low_indicate);
644 EPSTAT(tx_issued);
645 EPSTAT(tx_pkt_bundled);
646 EPSTAT(tx_bundles);
647 EPSTAT(tx_dropped);
648 EPSTAT(tx_cred_rpt);
649 EPSTAT(cred_rpt_from_rx);
650 EPSTAT(cred_rpt_from_other);
651 EPSTAT(cred_rpt_ep0);
652 EPSTAT(cred_from_rx);
653 EPSTAT(cred_from_other);
654 EPSTAT(cred_from_ep0);
655 EPSTAT(cred_cosumd);
656 EPSTAT(cred_retnd);
657 EPSTAT(rx_pkts);
658 EPSTAT(rx_lkahds);
659 EPSTAT(rx_bundl);
660 EPSTAT(rx_bundle_lkahd);
661 EPSTAT(rx_bundle_from_hdr);
662 EPSTAT(rx_alloc_thresh_hit);
663 EPSTAT(rxalloc_thresh_byte);
664 #undef EPSTAT
665
666 if (len > buf_len)
667 len = buf_len;
668
669 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
670 kfree(buf);
671 return ret_cnt;
672 }
673
674 static ssize_t ath6kl_endpoint_stats_write(struct file *file,
675 const char __user *user_buf,
676 size_t count, loff_t *ppos)
677 {
678 struct ath6kl *ar = file->private_data;
679 struct htc_target *target = ar->htc_target;
680 int ret, i;
681 u32 val;
682 struct htc_endpoint_stats *ep_st;
683
684 ret = kstrtou32_from_user(user_buf, count, 0, &val);
685 if (ret)
686 return ret;
687 if (val == 0) {
688 for (i = 0; i < ENDPOINT_MAX; i++) {
689 ep_st = &target->endpoint[i].ep_st;
690 memset(ep_st, 0, sizeof(*ep_st));
691 }
692 }
693
694 return count;
695 }
696
697 static const struct file_operations fops_endpoint_stats = {
698 .open = ath6kl_debugfs_open,
699 .read = ath6kl_endpoint_stats_read,
700 .write = ath6kl_endpoint_stats_write,
701 .owner = THIS_MODULE,
702 .llseek = default_llseek,
703 };
704
705 static unsigned long ath6kl_get_num_reg(void)
706 {
707 int i;
708 unsigned long n_reg = 0;
709
710 for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
711 n_reg = n_reg +
712 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
713
714 return n_reg;
715 }
716
717 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
718 {
719 int i;
720
721 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
722 if (reg_addr >= diag_reg[i].reg_start &&
723 reg_addr <= diag_reg[i].reg_end)
724 return true;
725 }
726
727 return false;
728 }
729
730 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
731 size_t count, loff_t *ppos)
732 {
733 struct ath6kl *ar = file->private_data;
734 u8 buf[50];
735 unsigned int len = 0;
736
737 if (ar->debug.dbgfs_diag_reg)
738 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
739 ar->debug.dbgfs_diag_reg);
740 else
741 len += scnprintf(buf + len, sizeof(buf) - len,
742 "All diag registers\n");
743
744 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
745 }
746
747 static ssize_t ath6kl_regread_write(struct file *file,
748 const char __user *user_buf,
749 size_t count, loff_t *ppos)
750 {
751 struct ath6kl *ar = file->private_data;
752 u8 buf[50];
753 unsigned int len;
754 unsigned long reg_addr;
755
756 len = min(count, sizeof(buf) - 1);
757 if (copy_from_user(buf, user_buf, len))
758 return -EFAULT;
759
760 buf[len] = '\0';
761
762 if (strict_strtoul(buf, 0, &reg_addr))
763 return -EINVAL;
764
765 if ((reg_addr % 4) != 0)
766 return -EINVAL;
767
768 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
769 return -EINVAL;
770
771 ar->debug.dbgfs_diag_reg = reg_addr;
772
773 return count;
774 }
775
776 static const struct file_operations fops_diag_reg_read = {
777 .read = ath6kl_regread_read,
778 .write = ath6kl_regread_write,
779 .open = ath6kl_debugfs_open,
780 .owner = THIS_MODULE,
781 .llseek = default_llseek,
782 };
783
784 static int ath6kl_regdump_open(struct inode *inode, struct file *file)
785 {
786 struct ath6kl *ar = inode->i_private;
787 u8 *buf;
788 unsigned long int reg_len;
789 unsigned int len = 0, n_reg;
790 u32 addr;
791 __le32 reg_val;
792 int i, status;
793
794 /* Dump all the registers if no register is specified */
795 if (!ar->debug.dbgfs_diag_reg)
796 n_reg = ath6kl_get_num_reg();
797 else
798 n_reg = 1;
799
800 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
801 if (n_reg > 1)
802 reg_len += REGTYPE_STR_LEN;
803
804 buf = vmalloc(reg_len);
805 if (!buf)
806 return -ENOMEM;
807
808 if (n_reg == 1) {
809 addr = ar->debug.dbgfs_diag_reg;
810
811 status = ath6kl_diag_read32(ar,
812 TARG_VTOP(ar->target_type, addr),
813 (u32 *)&reg_val);
814 if (status)
815 goto fail_reg_read;
816
817 len += scnprintf(buf + len, reg_len - len,
818 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
819 goto done;
820 }
821
822 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
823 len += scnprintf(buf + len, reg_len - len,
824 "%s\n", diag_reg[i].reg_info);
825 for (addr = diag_reg[i].reg_start;
826 addr <= diag_reg[i].reg_end; addr += 4) {
827 status = ath6kl_diag_read32(ar,
828 TARG_VTOP(ar->target_type, addr),
829 (u32 *)&reg_val);
830 if (status)
831 goto fail_reg_read;
832
833 len += scnprintf(buf + len, reg_len - len,
834 "0x%06x 0x%08x\n",
835 addr, le32_to_cpu(reg_val));
836 }
837 }
838
839 done:
840 file->private_data = buf;
841 return 0;
842
843 fail_reg_read:
844 ath6kl_warn("Unable to read memory:%u\n", addr);
845 vfree(buf);
846 return -EIO;
847 }
848
849 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
850 size_t count, loff_t *ppos)
851 {
852 u8 *buf = file->private_data;
853 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
854 }
855
856 static int ath6kl_regdump_release(struct inode *inode, struct file *file)
857 {
858 vfree(file->private_data);
859 return 0;
860 }
861
862 static const struct file_operations fops_reg_dump = {
863 .open = ath6kl_regdump_open,
864 .read = ath6kl_regdump_read,
865 .release = ath6kl_regdump_release,
866 .owner = THIS_MODULE,
867 .llseek = default_llseek,
868 };
869
870 static ssize_t ath6kl_lrssi_roam_write(struct file *file,
871 const char __user *user_buf,
872 size_t count, loff_t *ppos)
873 {
874 struct ath6kl *ar = file->private_data;
875 unsigned long lrssi_roam_threshold;
876 char buf[32];
877 ssize_t len;
878
879 len = min(count, sizeof(buf) - 1);
880 if (copy_from_user(buf, user_buf, len))
881 return -EFAULT;
882
883 buf[len] = '\0';
884 if (strict_strtoul(buf, 0, &lrssi_roam_threshold))
885 return -EINVAL;
886
887 ar->lrssi_roam_threshold = lrssi_roam_threshold;
888
889 ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold);
890
891 return count;
892 }
893
894 static ssize_t ath6kl_lrssi_roam_read(struct file *file,
895 char __user *user_buf,
896 size_t count, loff_t *ppos)
897 {
898 struct ath6kl *ar = file->private_data;
899 char buf[32];
900 unsigned int len;
901
902 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold);
903
904 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
905 }
906
907 static const struct file_operations fops_lrssi_roam_threshold = {
908 .read = ath6kl_lrssi_roam_read,
909 .write = ath6kl_lrssi_roam_write,
910 .open = ath6kl_debugfs_open,
911 .owner = THIS_MODULE,
912 .llseek = default_llseek,
913 };
914
915 static ssize_t ath6kl_regwrite_read(struct file *file,
916 char __user *user_buf,
917 size_t count, loff_t *ppos)
918 {
919 struct ath6kl *ar = file->private_data;
920 u8 buf[32];
921 unsigned int len = 0;
922
923 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n",
924 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr);
925
926 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
927 }
928
929 static ssize_t ath6kl_regwrite_write(struct file *file,
930 const char __user *user_buf,
931 size_t count, loff_t *ppos)
932 {
933 struct ath6kl *ar = file->private_data;
934 char buf[32];
935 char *sptr, *token;
936 unsigned int len = 0;
937 u32 reg_addr, reg_val;
938
939 len = min(count, sizeof(buf) - 1);
940 if (copy_from_user(buf, user_buf, len))
941 return -EFAULT;
942
943 buf[len] = '\0';
944 sptr = buf;
945
946 token = strsep(&sptr, "=");
947 if (!token)
948 return -EINVAL;
949
950 if (kstrtou32(token, 0, &reg_addr))
951 return -EINVAL;
952
953 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr))
954 return -EINVAL;
955
956 if (kstrtou32(sptr, 0, &reg_val))
957 return -EINVAL;
958
959 ar->debug.diag_reg_addr_wr = reg_addr;
960 ar->debug.diag_reg_val_wr = reg_val;
961
962 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr,
963 cpu_to_le32(ar->debug.diag_reg_val_wr)))
964 return -EIO;
965
966 return count;
967 }
968
969 static const struct file_operations fops_diag_reg_write = {
970 .read = ath6kl_regwrite_read,
971 .write = ath6kl_regwrite_write,
972 .open = ath6kl_debugfs_open,
973 .owner = THIS_MODULE,
974 .llseek = default_llseek,
975 };
976
977 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf,
978 size_t len)
979 {
980 const struct wmi_target_roam_tbl *tbl;
981 u16 num_entries;
982
983 if (len < sizeof(*tbl))
984 return -EINVAL;
985
986 tbl = (const struct wmi_target_roam_tbl *) buf;
987 num_entries = le16_to_cpu(tbl->num_entries);
988 if (sizeof(*tbl) + num_entries * sizeof(struct wmi_bss_roam_info) >
989 len)
990 return -EINVAL;
991
992 if (ar->debug.roam_tbl == NULL ||
993 ar->debug.roam_tbl_len < (unsigned int) len) {
994 kfree(ar->debug.roam_tbl);
995 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC);
996 if (ar->debug.roam_tbl == NULL)
997 return -ENOMEM;
998 }
999
1000 memcpy(ar->debug.roam_tbl, buf, len);
1001 ar->debug.roam_tbl_len = len;
1002
1003 if (test_bit(ROAM_TBL_PEND, &ar->flag)) {
1004 clear_bit(ROAM_TBL_PEND, &ar->flag);
1005 wake_up(&ar->event_wq);
1006 }
1007
1008 return 0;
1009 }
1010
1011 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf,
1012 size_t count, loff_t *ppos)
1013 {
1014 struct ath6kl *ar = file->private_data;
1015 int ret;
1016 long left;
1017 struct wmi_target_roam_tbl *tbl;
1018 u16 num_entries, i;
1019 char *buf;
1020 unsigned int len, buf_len;
1021 ssize_t ret_cnt;
1022
1023 if (down_interruptible(&ar->sem))
1024 return -EBUSY;
1025
1026 set_bit(ROAM_TBL_PEND, &ar->flag);
1027
1028 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi);
1029 if (ret) {
1030 up(&ar->sem);
1031 return ret;
1032 }
1033
1034 left = wait_event_interruptible_timeout(
1035 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT);
1036 up(&ar->sem);
1037
1038 if (left <= 0)
1039 return -ETIMEDOUT;
1040
1041 if (ar->debug.roam_tbl == NULL)
1042 return -ENOMEM;
1043
1044 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl;
1045 num_entries = le16_to_cpu(tbl->num_entries);
1046
1047 buf_len = 100 + num_entries * 100;
1048 buf = kzalloc(buf_len, GFP_KERNEL);
1049 if (buf == NULL)
1050 return -ENOMEM;
1051 len = 0;
1052 len += scnprintf(buf + len, buf_len - len,
1053 "roam_mode=%u\n\n"
1054 "# roam_util bssid rssi rssidt last_rssi util bias\n",
1055 le16_to_cpu(tbl->roam_mode));
1056
1057 for (i = 0; i < num_entries; i++) {
1058 struct wmi_bss_roam_info *info = &tbl->info[i];
1059 len += scnprintf(buf + len, buf_len - len,
1060 "%d %pM %d %d %d %d %d\n",
1061 a_sle32_to_cpu(info->roam_util), info->bssid,
1062 info->rssi, info->rssidt, info->last_rssi,
1063 info->util, info->bias);
1064 }
1065
1066 if (len > buf_len)
1067 len = buf_len;
1068
1069 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1070
1071 kfree(buf);
1072 return ret_cnt;
1073 }
1074
1075 static const struct file_operations fops_roam_table = {
1076 .read = ath6kl_roam_table_read,
1077 .open = ath6kl_debugfs_open,
1078 .owner = THIS_MODULE,
1079 .llseek = default_llseek,
1080 };
1081
1082 static ssize_t ath6kl_force_roam_write(struct file *file,
1083 const char __user *user_buf,
1084 size_t count, loff_t *ppos)
1085 {
1086 struct ath6kl *ar = file->private_data;
1087 int ret;
1088 char buf[20];
1089 size_t len;
1090 u8 bssid[ETH_ALEN];
1091 int i;
1092 int addr[ETH_ALEN];
1093
1094 len = min(count, sizeof(buf) - 1);
1095 if (copy_from_user(buf, user_buf, len))
1096 return -EFAULT;
1097 buf[len] = '\0';
1098
1099 if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
1100 &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5])
1101 != ETH_ALEN)
1102 return -EINVAL;
1103 for (i = 0; i < ETH_ALEN; i++)
1104 bssid[i] = addr[i];
1105
1106 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
1107 if (ret)
1108 return ret;
1109
1110 return count;
1111 }
1112
1113 static const struct file_operations fops_force_roam = {
1114 .write = ath6kl_force_roam_write,
1115 .open = ath6kl_debugfs_open,
1116 .owner = THIS_MODULE,
1117 .llseek = default_llseek,
1118 };
1119
1120 static ssize_t ath6kl_roam_mode_write(struct file *file,
1121 const char __user *user_buf,
1122 size_t count, loff_t *ppos)
1123 {
1124 struct ath6kl *ar = file->private_data;
1125 int ret;
1126 char buf[20];
1127 size_t len;
1128 enum wmi_roam_mode mode;
1129
1130 len = min(count, sizeof(buf) - 1);
1131 if (copy_from_user(buf, user_buf, len))
1132 return -EFAULT;
1133 buf[len] = '\0';
1134 if (len > 0 && buf[len - 1] == '\n')
1135 buf[len - 1] = '\0';
1136
1137 if (strcasecmp(buf, "default") == 0)
1138 mode = WMI_DEFAULT_ROAM_MODE;
1139 else if (strcasecmp(buf, "bssbias") == 0)
1140 mode = WMI_HOST_BIAS_ROAM_MODE;
1141 else if (strcasecmp(buf, "lock") == 0)
1142 mode = WMI_LOCK_BSS_MODE;
1143 else
1144 return -EINVAL;
1145
1146 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode);
1147 if (ret)
1148 return ret;
1149
1150 return count;
1151 }
1152
1153 static const struct file_operations fops_roam_mode = {
1154 .write = ath6kl_roam_mode_write,
1155 .open = ath6kl_debugfs_open,
1156 .owner = THIS_MODULE,
1157 .llseek = default_llseek,
1158 };
1159
1160 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive)
1161 {
1162 ar->debug.keepalive = keepalive;
1163 }
1164
1165 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf,
1166 size_t count, loff_t *ppos)
1167 {
1168 struct ath6kl *ar = file->private_data;
1169 char buf[16];
1170 int len;
1171
1172 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive);
1173
1174 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1175 }
1176
1177 static ssize_t ath6kl_keepalive_write(struct file *file,
1178 const char __user *user_buf,
1179 size_t count, loff_t *ppos)
1180 {
1181 struct ath6kl *ar = file->private_data;
1182 int ret;
1183 u8 val;
1184
1185 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1186 if (ret)
1187 return ret;
1188
1189 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val);
1190 if (ret)
1191 return ret;
1192
1193 return count;
1194 }
1195
1196 static const struct file_operations fops_keepalive = {
1197 .open = ath6kl_debugfs_open,
1198 .read = ath6kl_keepalive_read,
1199 .write = ath6kl_keepalive_write,
1200 .owner = THIS_MODULE,
1201 .llseek = default_llseek,
1202 };
1203
1204 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout)
1205 {
1206 ar->debug.disc_timeout = timeout;
1207 }
1208
1209 static ssize_t ath6kl_disconnect_timeout_read(struct file *file,
1210 char __user *user_buf,
1211 size_t count, loff_t *ppos)
1212 {
1213 struct ath6kl *ar = file->private_data;
1214 char buf[16];
1215 int len;
1216
1217 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout);
1218
1219 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1220 }
1221
1222 static ssize_t ath6kl_disconnect_timeout_write(struct file *file,
1223 const char __user *user_buf,
1224 size_t count, loff_t *ppos)
1225 {
1226 struct ath6kl *ar = file->private_data;
1227 int ret;
1228 u8 val;
1229
1230 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1231 if (ret)
1232 return ret;
1233
1234 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val);
1235 if (ret)
1236 return ret;
1237
1238 return count;
1239 }
1240
1241 static const struct file_operations fops_disconnect_timeout = {
1242 .open = ath6kl_debugfs_open,
1243 .read = ath6kl_disconnect_timeout_read,
1244 .write = ath6kl_disconnect_timeout_write,
1245 .owner = THIS_MODULE,
1246 .llseek = default_llseek,
1247 };
1248
1249 static ssize_t ath6kl_create_qos_write(struct file *file,
1250 const char __user *user_buf,
1251 size_t count, loff_t *ppos)
1252 {
1253
1254 struct ath6kl *ar = file->private_data;
1255 struct ath6kl_vif *vif;
1256 char buf[200];
1257 ssize_t len;
1258 char *sptr, *token;
1259 struct wmi_create_pstream_cmd pstream;
1260 u32 val32;
1261 u16 val16;
1262
1263 vif = ath6kl_vif_first(ar);
1264 if (!vif)
1265 return -EIO;
1266
1267 len = min(count, sizeof(buf) - 1);
1268 if (copy_from_user(buf, user_buf, len))
1269 return -EFAULT;
1270 buf[len] = '\0';
1271 sptr = buf;
1272
1273 token = strsep(&sptr, " ");
1274 if (!token)
1275 return -EINVAL;
1276 if (kstrtou8(token, 0, &pstream.user_pri))
1277 return -EINVAL;
1278
1279 token = strsep(&sptr, " ");
1280 if (!token)
1281 return -EINVAL;
1282 if (kstrtou8(token, 0, &pstream.traffic_direc))
1283 return -EINVAL;
1284
1285 token = strsep(&sptr, " ");
1286 if (!token)
1287 return -EINVAL;
1288 if (kstrtou8(token, 0, &pstream.traffic_class))
1289 return -EINVAL;
1290
1291 token = strsep(&sptr, " ");
1292 if (!token)
1293 return -EINVAL;
1294 if (kstrtou8(token, 0, &pstream.traffic_type))
1295 return -EINVAL;
1296
1297 token = strsep(&sptr, " ");
1298 if (!token)
1299 return -EINVAL;
1300 if (kstrtou8(token, 0, &pstream.voice_psc_cap))
1301 return -EINVAL;
1302
1303 token = strsep(&sptr, " ");
1304 if (!token)
1305 return -EINVAL;
1306 if (kstrtou32(token, 0, &val32))
1307 return -EINVAL;
1308 pstream.min_service_int = cpu_to_le32(val32);
1309
1310 token = strsep(&sptr, " ");
1311 if (!token)
1312 return -EINVAL;
1313 if (kstrtou32(token, 0, &val32))
1314 return -EINVAL;
1315 pstream.max_service_int = cpu_to_le32(val32);
1316
1317 token = strsep(&sptr, " ");
1318 if (!token)
1319 return -EINVAL;
1320 if (kstrtou32(token, 0, &val32))
1321 return -EINVAL;
1322 pstream.inactivity_int = cpu_to_le32(val32);
1323
1324 token = strsep(&sptr, " ");
1325 if (!token)
1326 return -EINVAL;
1327 if (kstrtou32(token, 0, &val32))
1328 return -EINVAL;
1329 pstream.suspension_int = cpu_to_le32(val32);
1330
1331 token = strsep(&sptr, " ");
1332 if (!token)
1333 return -EINVAL;
1334 if (kstrtou32(token, 0, &val32))
1335 return -EINVAL;
1336 pstream.service_start_time = cpu_to_le32(val32);
1337
1338 token = strsep(&sptr, " ");
1339 if (!token)
1340 return -EINVAL;
1341 if (kstrtou8(token, 0, &pstream.tsid))
1342 return -EINVAL;
1343
1344 token = strsep(&sptr, " ");
1345 if (!token)
1346 return -EINVAL;
1347 if (kstrtou16(token, 0, &val16))
1348 return -EINVAL;
1349 pstream.nominal_msdu = cpu_to_le16(val16);
1350
1351 token = strsep(&sptr, " ");
1352 if (!token)
1353 return -EINVAL;
1354 if (kstrtou16(token, 0, &val16))
1355 return -EINVAL;
1356 pstream.max_msdu = cpu_to_le16(val16);
1357
1358 token = strsep(&sptr, " ");
1359 if (!token)
1360 return -EINVAL;
1361 if (kstrtou32(token, 0, &val32))
1362 return -EINVAL;
1363 pstream.min_data_rate = cpu_to_le32(val32);
1364
1365 token = strsep(&sptr, " ");
1366 if (!token)
1367 return -EINVAL;
1368 if (kstrtou32(token, 0, &val32))
1369 return -EINVAL;
1370 pstream.mean_data_rate = cpu_to_le32(val32);
1371
1372 token = strsep(&sptr, " ");
1373 if (!token)
1374 return -EINVAL;
1375 if (kstrtou32(token, 0, &val32))
1376 return -EINVAL;
1377 pstream.peak_data_rate = cpu_to_le32(val32);
1378
1379 token = strsep(&sptr, " ");
1380 if (!token)
1381 return -EINVAL;
1382 if (kstrtou32(token, 0, &val32))
1383 return -EINVAL;
1384 pstream.max_burst_size = cpu_to_le32(val32);
1385
1386 token = strsep(&sptr, " ");
1387 if (!token)
1388 return -EINVAL;
1389 if (kstrtou32(token, 0, &val32))
1390 return -EINVAL;
1391 pstream.delay_bound = cpu_to_le32(val32);
1392
1393 token = strsep(&sptr, " ");
1394 if (!token)
1395 return -EINVAL;
1396 if (kstrtou32(token, 0, &val32))
1397 return -EINVAL;
1398 pstream.min_phy_rate = cpu_to_le32(val32);
1399
1400 token = strsep(&sptr, " ");
1401 if (!token)
1402 return -EINVAL;
1403 if (kstrtou32(token, 0, &val32))
1404 return -EINVAL;
1405 pstream.sba = cpu_to_le32(val32);
1406
1407 token = strsep(&sptr, " ");
1408 if (!token)
1409 return -EINVAL;
1410 if (kstrtou32(token, 0, &val32))
1411 return -EINVAL;
1412 pstream.medium_time = cpu_to_le32(val32);
1413
1414 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream);
1415
1416 return count;
1417 }
1418
1419 static const struct file_operations fops_create_qos = {
1420 .write = ath6kl_create_qos_write,
1421 .open = ath6kl_debugfs_open,
1422 .owner = THIS_MODULE,
1423 .llseek = default_llseek,
1424 };
1425
1426 static ssize_t ath6kl_delete_qos_write(struct file *file,
1427 const char __user *user_buf,
1428 size_t count, loff_t *ppos)
1429 {
1430
1431 struct ath6kl *ar = file->private_data;
1432 struct ath6kl_vif *vif;
1433 char buf[100];
1434 ssize_t len;
1435 char *sptr, *token;
1436 u8 traffic_class;
1437 u8 tsid;
1438
1439 vif = ath6kl_vif_first(ar);
1440 if (!vif)
1441 return -EIO;
1442
1443 len = min(count, sizeof(buf) - 1);
1444 if (copy_from_user(buf, user_buf, len))
1445 return -EFAULT;
1446 buf[len] = '\0';
1447 sptr = buf;
1448
1449 token = strsep(&sptr, " ");
1450 if (!token)
1451 return -EINVAL;
1452 if (kstrtou8(token, 0, &traffic_class))
1453 return -EINVAL;
1454
1455 token = strsep(&sptr, " ");
1456 if (!token)
1457 return -EINVAL;
1458 if (kstrtou8(token, 0, &tsid))
1459 return -EINVAL;
1460
1461 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx,
1462 traffic_class, tsid);
1463
1464 return count;
1465 }
1466
1467 static const struct file_operations fops_delete_qos = {
1468 .write = ath6kl_delete_qos_write,
1469 .open = ath6kl_debugfs_open,
1470 .owner = THIS_MODULE,
1471 .llseek = default_llseek,
1472 };
1473
1474 static ssize_t ath6kl_bgscan_int_write(struct file *file,
1475 const char __user *user_buf,
1476 size_t count, loff_t *ppos)
1477 {
1478 struct ath6kl *ar = file->private_data;
1479 u16 bgscan_int;
1480 char buf[32];
1481 ssize_t len;
1482
1483 len = min(count, sizeof(buf) - 1);
1484 if (copy_from_user(buf, user_buf, len))
1485 return -EFAULT;
1486
1487 buf[len] = '\0';
1488 if (kstrtou16(buf, 0, &bgscan_int))
1489 return -EINVAL;
1490
1491 if (bgscan_int == 0)
1492 bgscan_int = 0xffff;
1493
1494 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3,
1495 0, 0, 0);
1496
1497 return count;
1498 }
1499
1500 static const struct file_operations fops_bgscan_int = {
1501 .write = ath6kl_bgscan_int_write,
1502 .open = ath6kl_debugfs_open,
1503 .owner = THIS_MODULE,
1504 .llseek = default_llseek,
1505 };
1506
1507 static ssize_t ath6kl_listen_int_write(struct file *file,
1508 const char __user *user_buf,
1509 size_t count, loff_t *ppos)
1510 {
1511 struct ath6kl *ar = file->private_data;
1512 u16 listen_int_t, listen_int_b;
1513 char buf[32];
1514 char *sptr, *token;
1515 ssize_t len;
1516
1517 len = min(count, sizeof(buf) - 1);
1518 if (copy_from_user(buf, user_buf, len))
1519 return -EFAULT;
1520
1521 buf[len] = '\0';
1522 sptr = buf;
1523
1524 token = strsep(&sptr, " ");
1525 if (!token)
1526 return -EINVAL;
1527
1528 if (kstrtou16(token, 0, &listen_int_t))
1529 return -EINVAL;
1530
1531 if (kstrtou16(sptr, 0, &listen_int_b))
1532 return -EINVAL;
1533
1534 if ((listen_int_t < 15) || (listen_int_t > 5000))
1535 return -EINVAL;
1536
1537 if ((listen_int_b < 1) || (listen_int_b > 50))
1538 return -EINVAL;
1539
1540 ar->listen_intvl_t = listen_int_t;
1541 ar->listen_intvl_b = listen_int_b;
1542
1543 ath6kl_wmi_listeninterval_cmd(ar->wmi, 0, ar->listen_intvl_t,
1544 ar->listen_intvl_b);
1545
1546 return count;
1547 }
1548
1549 static ssize_t ath6kl_listen_int_read(struct file *file,
1550 char __user *user_buf,
1551 size_t count, loff_t *ppos)
1552 {
1553 struct ath6kl *ar = file->private_data;
1554 char buf[32];
1555 int len;
1556
1557 len = scnprintf(buf, sizeof(buf), "%u %u\n", ar->listen_intvl_t,
1558 ar->listen_intvl_b);
1559
1560 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1561 }
1562
1563 static const struct file_operations fops_listen_int = {
1564 .read = ath6kl_listen_int_read,
1565 .write = ath6kl_listen_int_write,
1566 .open = ath6kl_debugfs_open,
1567 .owner = THIS_MODULE,
1568 .llseek = default_llseek,
1569 };
1570
1571 static ssize_t ath6kl_power_params_write(struct file *file,
1572 const char __user *user_buf,
1573 size_t count, loff_t *ppos)
1574 {
1575 struct ath6kl *ar = file->private_data;
1576 u8 buf[100];
1577 unsigned int len = 0;
1578 char *sptr, *token;
1579 u16 idle_period, ps_poll_num, dtim,
1580 tx_wakeup, num_tx;
1581
1582 len = min(count, sizeof(buf) - 1);
1583 if (copy_from_user(buf, user_buf, len))
1584 return -EFAULT;
1585 buf[len] = '\0';
1586 sptr = buf;
1587
1588 token = strsep(&sptr, " ");
1589 if (!token)
1590 return -EINVAL;
1591 if (kstrtou16(token, 0, &idle_period))
1592 return -EINVAL;
1593
1594 token = strsep(&sptr, " ");
1595 if (!token)
1596 return -EINVAL;
1597 if (kstrtou16(token, 0, &ps_poll_num))
1598 return -EINVAL;
1599
1600 token = strsep(&sptr, " ");
1601 if (!token)
1602 return -EINVAL;
1603 if (kstrtou16(token, 0, &dtim))
1604 return -EINVAL;
1605
1606 token = strsep(&sptr, " ");
1607 if (!token)
1608 return -EINVAL;
1609 if (kstrtou16(token, 0, &tx_wakeup))
1610 return -EINVAL;
1611
1612 token = strsep(&sptr, " ");
1613 if (!token)
1614 return -EINVAL;
1615 if (kstrtou16(token, 0, &num_tx))
1616 return -EINVAL;
1617
1618 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num,
1619 dtim, tx_wakeup, num_tx, 0);
1620
1621 return count;
1622 }
1623
1624 static const struct file_operations fops_power_params = {
1625 .write = ath6kl_power_params_write,
1626 .open = ath6kl_debugfs_open,
1627 .owner = THIS_MODULE,
1628 .llseek = default_llseek,
1629 };
1630
1631 int ath6kl_debug_init(struct ath6kl *ar)
1632 {
1633 ar->debug.fwlog_buf.buf = vmalloc(ATH6KL_FWLOG_SIZE);
1634 if (ar->debug.fwlog_buf.buf == NULL)
1635 return -ENOMEM;
1636
1637 ar->debug.fwlog_tmp = kmalloc(ATH6KL_FWLOG_SLOT_SIZE, GFP_KERNEL);
1638 if (ar->debug.fwlog_tmp == NULL) {
1639 vfree(ar->debug.fwlog_buf.buf);
1640 return -ENOMEM;
1641 }
1642
1643 spin_lock_init(&ar->debug.fwlog_lock);
1644
1645 /*
1646 * Actually we are lying here but don't know how to read the mask
1647 * value from the firmware.
1648 */
1649 ar->debug.fwlog_mask = 0;
1650
1651 ar->debugfs_phy = debugfs_create_dir("ath6kl",
1652 ar->wiphy->debugfsdir);
1653 if (!ar->debugfs_phy) {
1654 vfree(ar->debug.fwlog_buf.buf);
1655 kfree(ar->debug.fwlog_tmp);
1656 return -ENOMEM;
1657 }
1658
1659 debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
1660 &fops_tgt_stats);
1661
1662 debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar,
1663 &fops_credit_dist_stats);
1664
1665 debugfs_create_file("endpoint_stats", S_IRUSR | S_IWUSR,
1666 ar->debugfs_phy, ar, &fops_endpoint_stats);
1667
1668 debugfs_create_file("fwlog", S_IRUSR, ar->debugfs_phy, ar,
1669 &fops_fwlog);
1670
1671 debugfs_create_file("fwlog_mask", S_IRUSR | S_IWUSR, ar->debugfs_phy,
1672 ar, &fops_fwlog_mask);
1673
1674 debugfs_create_file("reg_addr", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1675 &fops_diag_reg_read);
1676
1677 debugfs_create_file("reg_dump", S_IRUSR, ar->debugfs_phy, ar,
1678 &fops_reg_dump);
1679
1680 debugfs_create_file("lrssi_roam_threshold", S_IRUSR | S_IWUSR,
1681 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold);
1682
1683 debugfs_create_file("reg_write", S_IRUSR | S_IWUSR,
1684 ar->debugfs_phy, ar, &fops_diag_reg_write);
1685
1686 debugfs_create_file("war_stats", S_IRUSR, ar->debugfs_phy, ar,
1687 &fops_war_stats);
1688
1689 debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar,
1690 &fops_roam_table);
1691
1692 debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar,
1693 &fops_force_roam);
1694
1695 debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar,
1696 &fops_roam_mode);
1697
1698 debugfs_create_file("keepalive", S_IRUSR | S_IWUSR, ar->debugfs_phy, ar,
1699 &fops_keepalive);
1700
1701 debugfs_create_file("disconnect_timeout", S_IRUSR | S_IWUSR,
1702 ar->debugfs_phy, ar, &fops_disconnect_timeout);
1703
1704 debugfs_create_file("create_qos", S_IWUSR, ar->debugfs_phy, ar,
1705 &fops_create_qos);
1706
1707 debugfs_create_file("delete_qos", S_IWUSR, ar->debugfs_phy, ar,
1708 &fops_delete_qos);
1709
1710 debugfs_create_file("bgscan_interval", S_IWUSR,
1711 ar->debugfs_phy, ar, &fops_bgscan_int);
1712
1713 debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar,
1714 &fops_power_params);
1715
1716 return 0;
1717 }
1718
1719 void ath6kl_debug_cleanup(struct ath6kl *ar)
1720 {
1721 vfree(ar->debug.fwlog_buf.buf);
1722 kfree(ar->debug.fwlog_tmp);
1723 kfree(ar->debug.roam_tbl);
1724 }
1725
1726 #endif