1 /*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4 *
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.
8 *
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.
16 */
17
18 #include "core.h"
19
20 #include <linux/skbuff.h>
21 #include <linux/fs.h>
22 #include <linux/vmalloc.h>
23 #include <linux/export.h>
24
25 #include "debug.h"
26 #include "target.h"
27
28 struct ath6kl_fwlog_slot {
29 __le32 timestamp;
30 __le32 length;
31
32 /* max ATH6KL_FWLOG_PAYLOAD_SIZE bytes */
33 u8 payload[];
34 };
35
36 #define ATH6KL_FWLOG_MAX_ENTRIES 20
37
38 #define ATH6KL_FWLOG_VALID_MASK 0x1ffff
39
ath6kl_printk(const char * level,const char * fmt,...)40 void ath6kl_printk(const char *level, const char *fmt, ...)
41 {
42 struct va_format vaf;
43 va_list args;
44
45 va_start(args, fmt);
46
47 vaf.fmt = fmt;
48 vaf.va = &args;
49
50 printk("%sath6kl: %pV", level, &vaf);
51
52 va_end(args);
53 }
54 EXPORT_SYMBOL(ath6kl_printk);
55
ath6kl_info(const char * fmt,...)56 void ath6kl_info(const char *fmt, ...)
57 {
58 struct va_format vaf = {
59 .fmt = fmt,
60 };
61 va_list args;
62
63 va_start(args, fmt);
64 vaf.va = &args;
65 ath6kl_printk(KERN_INFO, "%pV", &vaf);
66 trace_ath6kl_log_info(&vaf);
67 va_end(args);
68 }
69 EXPORT_SYMBOL(ath6kl_info);
70
ath6kl_err(const char * fmt,...)71 void ath6kl_err(const char *fmt, ...)
72 {
73 struct va_format vaf = {
74 .fmt = fmt,
75 };
76 va_list args;
77
78 va_start(args, fmt);
79 vaf.va = &args;
80 ath6kl_printk(KERN_ERR, "%pV", &vaf);
81 trace_ath6kl_log_err(&vaf);
82 va_end(args);
83 }
84 EXPORT_SYMBOL(ath6kl_err);
85
ath6kl_warn(const char * fmt,...)86 void ath6kl_warn(const char *fmt, ...)
87 {
88 struct va_format vaf = {
89 .fmt = fmt,
90 };
91 va_list args;
92
93 va_start(args, fmt);
94 vaf.va = &args;
95 ath6kl_printk(KERN_WARNING, "%pV", &vaf);
96 trace_ath6kl_log_warn(&vaf);
97 va_end(args);
98 }
99 EXPORT_SYMBOL(ath6kl_warn);
100
ath6kl_read_tgt_stats(struct ath6kl * ar,struct ath6kl_vif * vif)101 int ath6kl_read_tgt_stats(struct ath6kl *ar, struct ath6kl_vif *vif)
102 {
103 long left;
104
105 if (down_interruptible(&ar->sem))
106 return -EBUSY;
107
108 set_bit(STATS_UPDATE_PEND, &vif->flags);
109
110 if (ath6kl_wmi_get_stats_cmd(ar->wmi, 0)) {
111 up(&ar->sem);
112 return -EIO;
113 }
114
115 left = wait_event_interruptible_timeout(ar->event_wq,
116 !test_bit(STATS_UPDATE_PEND,
117 &vif->flags), WMI_TIMEOUT);
118
119 up(&ar->sem);
120
121 if (left <= 0)
122 return -ETIMEDOUT;
123
124 return 0;
125 }
126 EXPORT_SYMBOL(ath6kl_read_tgt_stats);
127
128 #ifdef CONFIG_ATH6KL_DEBUG
129
ath6kl_dbg(enum ATH6K_DEBUG_MASK mask,const char * fmt,...)130 void ath6kl_dbg(enum ATH6K_DEBUG_MASK mask, const char *fmt, ...)
131 {
132 struct va_format vaf;
133 va_list args;
134
135 va_start(args, fmt);
136
137 vaf.fmt = fmt;
138 vaf.va = &args;
139
140 if (debug_mask & mask)
141 ath6kl_printk(KERN_DEBUG, "%pV", &vaf);
142
143 trace_ath6kl_log_dbg(mask, &vaf);
144
145 va_end(args);
146 }
147 EXPORT_SYMBOL(ath6kl_dbg);
148
ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,const char * msg,const char * prefix,const void * buf,size_t len)149 void ath6kl_dbg_dump(enum ATH6K_DEBUG_MASK mask,
150 const char *msg, const char *prefix,
151 const void *buf, size_t len)
152 {
153 if (debug_mask & mask) {
154 if (msg)
155 ath6kl_dbg(mask, "%s\n", msg);
156
157 print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
158 }
159
160 /* tracing code doesn't like null strings :/ */
161 trace_ath6kl_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
162 buf, len);
163 }
164 EXPORT_SYMBOL(ath6kl_dbg_dump);
165
166 #define REG_OUTPUT_LEN_PER_LINE 25
167 #define REGTYPE_STR_LEN 100
168
169 struct ath6kl_diag_reg_info {
170 u32 reg_start;
171 u32 reg_end;
172 const char *reg_info;
173 };
174
175 static const struct ath6kl_diag_reg_info diag_reg[] = {
176 { 0x20000, 0x200fc, "General DMA and Rx registers" },
177 { 0x28000, 0x28900, "MAC PCU register & keycache" },
178 { 0x20800, 0x20a40, "QCU" },
179 { 0x21000, 0x212f0, "DCU" },
180 { 0x4000, 0x42e4, "RTC" },
181 { 0x540000, 0x540000 + (256 * 1024), "RAM" },
182 { 0x29800, 0x2B210, "Base Band" },
183 { 0x1C000, 0x1C748, "Analog" },
184 };
185
ath6kl_dump_registers(struct ath6kl_device * dev,struct ath6kl_irq_proc_registers * irq_proc_reg,struct ath6kl_irq_enable_reg * irq_enable_reg)186 void ath6kl_dump_registers(struct ath6kl_device *dev,
187 struct ath6kl_irq_proc_registers *irq_proc_reg,
188 struct ath6kl_irq_enable_reg *irq_enable_reg)
189 {
190 ath6kl_dbg(ATH6KL_DBG_IRQ, ("<------- Register Table -------->\n"));
191
192 if (irq_proc_reg != NULL) {
193 ath6kl_dbg(ATH6KL_DBG_IRQ,
194 "Host Int status: 0x%x\n",
195 irq_proc_reg->host_int_status);
196 ath6kl_dbg(ATH6KL_DBG_IRQ,
197 "CPU Int status: 0x%x\n",
198 irq_proc_reg->cpu_int_status);
199 ath6kl_dbg(ATH6KL_DBG_IRQ,
200 "Error Int status: 0x%x\n",
201 irq_proc_reg->error_int_status);
202 ath6kl_dbg(ATH6KL_DBG_IRQ,
203 "Counter Int status: 0x%x\n",
204 irq_proc_reg->counter_int_status);
205 ath6kl_dbg(ATH6KL_DBG_IRQ,
206 "Mbox Frame: 0x%x\n",
207 irq_proc_reg->mbox_frame);
208 ath6kl_dbg(ATH6KL_DBG_IRQ,
209 "Rx Lookahead Valid: 0x%x\n",
210 irq_proc_reg->rx_lkahd_valid);
211 ath6kl_dbg(ATH6KL_DBG_IRQ,
212 "Rx Lookahead 0: 0x%x\n",
213 irq_proc_reg->rx_lkahd[0]);
214 ath6kl_dbg(ATH6KL_DBG_IRQ,
215 "Rx Lookahead 1: 0x%x\n",
216 irq_proc_reg->rx_lkahd[1]);
217
218 if (dev->ar->mbox_info.gmbox_addr != 0) {
219 /*
220 * If the target supports GMBOX hardware, dump some
221 * additional state.
222 */
223 ath6kl_dbg(ATH6KL_DBG_IRQ,
224 "GMBOX Host Int status 2: 0x%x\n",
225 irq_proc_reg->host_int_status2);
226 ath6kl_dbg(ATH6KL_DBG_IRQ,
227 "GMBOX RX Avail: 0x%x\n",
228 irq_proc_reg->gmbox_rx_avail);
229 ath6kl_dbg(ATH6KL_DBG_IRQ,
230 "GMBOX lookahead alias 0: 0x%x\n",
231 irq_proc_reg->rx_gmbox_lkahd_alias[0]);
232 ath6kl_dbg(ATH6KL_DBG_IRQ,
233 "GMBOX lookahead alias 1: 0x%x\n",
234 irq_proc_reg->rx_gmbox_lkahd_alias[1]);
235 }
236 }
237
238 if (irq_enable_reg != NULL) {
239 ath6kl_dbg(ATH6KL_DBG_IRQ,
240 "Int status Enable: 0x%x\n",
241 irq_enable_reg->int_status_en);
242 ath6kl_dbg(ATH6KL_DBG_IRQ, "Counter Int status Enable: 0x%x\n",
243 irq_enable_reg->cntr_int_status_en);
244 }
245 ath6kl_dbg(ATH6KL_DBG_IRQ, "<------------------------------->\n");
246 }
247
dump_cred_dist(struct htc_endpoint_credit_dist * ep_dist)248 static void dump_cred_dist(struct htc_endpoint_credit_dist *ep_dist)
249 {
250 ath6kl_dbg(ATH6KL_DBG_CREDIT,
251 "--- endpoint: %d svc_id: 0x%X ---\n",
252 ep_dist->endpoint, ep_dist->svc_id);
253 ath6kl_dbg(ATH6KL_DBG_CREDIT, " dist_flags : 0x%X\n",
254 ep_dist->dist_flags);
255 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_norm : %d\n",
256 ep_dist->cred_norm);
257 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_min : %d\n",
258 ep_dist->cred_min);
259 ath6kl_dbg(ATH6KL_DBG_CREDIT, " credits : %d\n",
260 ep_dist->credits);
261 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_assngd : %d\n",
262 ep_dist->cred_assngd);
263 ath6kl_dbg(ATH6KL_DBG_CREDIT, " seek_cred : %d\n",
264 ep_dist->seek_cred);
265 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_sz : %d\n",
266 ep_dist->cred_sz);
267 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_per_msg : %d\n",
268 ep_dist->cred_per_msg);
269 ath6kl_dbg(ATH6KL_DBG_CREDIT, " cred_to_dist : %d\n",
270 ep_dist->cred_to_dist);
271 ath6kl_dbg(ATH6KL_DBG_CREDIT, " txq_depth : %d\n",
272 get_queue_depth(&ep_dist->htc_ep->txq));
273 ath6kl_dbg(ATH6KL_DBG_CREDIT,
274 "----------------------------------\n");
275 }
276
277 /* FIXME: move to htc.c */
dump_cred_dist_stats(struct htc_target * target)278 void dump_cred_dist_stats(struct htc_target *target)
279 {
280 struct htc_endpoint_credit_dist *ep_list;
281
282 list_for_each_entry(ep_list, &target->cred_dist_list, list)
283 dump_cred_dist(ep_list);
284
285 ath6kl_dbg(ATH6KL_DBG_CREDIT,
286 "credit distribution total %d free %d\n",
287 target->credit_info->total_avail_credits,
288 target->credit_info->cur_free_credits);
289 }
290
ath6kl_debug_war(struct ath6kl * ar,enum ath6kl_war war)291 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war)
292 {
293 switch (war) {
294 case ATH6KL_WAR_INVALID_RATE:
295 ar->debug.war_stats.invalid_rate++;
296 break;
297 }
298 }
299
read_file_war_stats(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)300 static ssize_t read_file_war_stats(struct file *file, char __user *user_buf,
301 size_t count, loff_t *ppos)
302 {
303 struct ath6kl *ar = file->private_data;
304 char *buf;
305 unsigned int len = 0, buf_len = 1500;
306 ssize_t ret_cnt;
307
308 buf = kzalloc(buf_len, GFP_KERNEL);
309 if (!buf)
310 return -ENOMEM;
311
312 len += scnprintf(buf + len, buf_len - len, "\n");
313 len += scnprintf(buf + len, buf_len - len, "%25s\n",
314 "Workaround stats");
315 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
316 "=================");
317 len += scnprintf(buf + len, buf_len - len, "%20s %10u\n",
318 "Invalid rates", ar->debug.war_stats.invalid_rate);
319
320 if (WARN_ON(len > buf_len))
321 len = buf_len;
322
323 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
324
325 kfree(buf);
326 return ret_cnt;
327 }
328
329 static const struct file_operations fops_war_stats = {
330 .read = read_file_war_stats,
331 .open = simple_open,
332 .owner = THIS_MODULE,
333 .llseek = default_llseek,
334 };
335
ath6kl_debug_fwlog_event(struct ath6kl * ar,const void * buf,size_t len)336 void ath6kl_debug_fwlog_event(struct ath6kl *ar, const void *buf, size_t len)
337 {
338 struct ath6kl_fwlog_slot *slot;
339 struct sk_buff *skb;
340 size_t slot_len;
341
342 if (WARN_ON(len > ATH6KL_FWLOG_PAYLOAD_SIZE))
343 return;
344
345 slot_len = sizeof(*slot) + ATH6KL_FWLOG_PAYLOAD_SIZE;
346
347 skb = alloc_skb(slot_len, GFP_KERNEL);
348 if (!skb)
349 return;
350
351 slot = skb_put(skb, slot_len);
352 slot->timestamp = cpu_to_le32(jiffies);
353 slot->length = cpu_to_le32(len);
354 memcpy(slot->payload, buf, len);
355
356 /* Need to pad each record to fixed length ATH6KL_FWLOG_PAYLOAD_SIZE */
357 memset(slot->payload + len, 0, ATH6KL_FWLOG_PAYLOAD_SIZE - len);
358
359 spin_lock(&ar->debug.fwlog_queue.lock);
360
361 __skb_queue_tail(&ar->debug.fwlog_queue, skb);
362 complete(&ar->debug.fwlog_completion);
363
364 /* drop oldest entries */
365 while (skb_queue_len(&ar->debug.fwlog_queue) >
366 ATH6KL_FWLOG_MAX_ENTRIES) {
367 skb = __skb_dequeue(&ar->debug.fwlog_queue);
368 kfree_skb(skb);
369 }
370
371 spin_unlock(&ar->debug.fwlog_queue.lock);
372
373 return;
374 }
375
ath6kl_fwlog_open(struct inode * inode,struct file * file)376 static int ath6kl_fwlog_open(struct inode *inode, struct file *file)
377 {
378 struct ath6kl *ar = inode->i_private;
379
380 if (ar->debug.fwlog_open)
381 return -EBUSY;
382
383 ar->debug.fwlog_open = true;
384
385 file->private_data = inode->i_private;
386 return 0;
387 }
388
ath6kl_fwlog_release(struct inode * inode,struct file * file)389 static int ath6kl_fwlog_release(struct inode *inode, struct file *file)
390 {
391 struct ath6kl *ar = inode->i_private;
392
393 ar->debug.fwlog_open = false;
394
395 return 0;
396 }
397
ath6kl_fwlog_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)398 static ssize_t ath6kl_fwlog_read(struct file *file, char __user *user_buf,
399 size_t count, loff_t *ppos)
400 {
401 struct ath6kl *ar = file->private_data;
402 struct sk_buff *skb;
403 ssize_t ret_cnt;
404 size_t len = 0;
405 char *buf;
406
407 buf = vmalloc(count);
408 if (!buf)
409 return -ENOMEM;
410
411 /* read undelivered logs from firmware */
412 ath6kl_read_fwlogs(ar);
413
414 spin_lock(&ar->debug.fwlog_queue.lock);
415
416 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
417 if (skb->len > count - len) {
418 /* not enough space, put skb back and leave */
419 __skb_queue_head(&ar->debug.fwlog_queue, skb);
420 break;
421 }
422
423
424 memcpy(buf + len, skb->data, skb->len);
425 len += skb->len;
426
427 kfree_skb(skb);
428 }
429
430 spin_unlock(&ar->debug.fwlog_queue.lock);
431
432 /* FIXME: what to do if len == 0? */
433
434 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
435
436 vfree(buf);
437
438 return ret_cnt;
439 }
440
441 static const struct file_operations fops_fwlog = {
442 .open = ath6kl_fwlog_open,
443 .release = ath6kl_fwlog_release,
444 .read = ath6kl_fwlog_read,
445 .owner = THIS_MODULE,
446 .llseek = default_llseek,
447 };
448
ath6kl_fwlog_block_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)449 static ssize_t ath6kl_fwlog_block_read(struct file *file,
450 char __user *user_buf,
451 size_t count,
452 loff_t *ppos)
453 {
454 struct ath6kl *ar = file->private_data;
455 struct sk_buff *skb;
456 ssize_t ret_cnt;
457 size_t len = 0, not_copied;
458 char *buf;
459 int ret;
460
461 buf = vmalloc(count);
462 if (!buf)
463 return -ENOMEM;
464
465 spin_lock(&ar->debug.fwlog_queue.lock);
466
467 if (skb_queue_len(&ar->debug.fwlog_queue) == 0) {
468 /* we must init under queue lock */
469 init_completion(&ar->debug.fwlog_completion);
470
471 spin_unlock(&ar->debug.fwlog_queue.lock);
472
473 ret = wait_for_completion_interruptible(
474 &ar->debug.fwlog_completion);
475 if (ret == -ERESTARTSYS) {
476 vfree(buf);
477 return ret;
478 }
479
480 spin_lock(&ar->debug.fwlog_queue.lock);
481 }
482
483 while ((skb = __skb_dequeue(&ar->debug.fwlog_queue))) {
484 if (skb->len > count - len) {
485 /* not enough space, put skb back and leave */
486 __skb_queue_head(&ar->debug.fwlog_queue, skb);
487 break;
488 }
489
490
491 memcpy(buf + len, skb->data, skb->len);
492 len += skb->len;
493
494 kfree_skb(skb);
495 }
496
497 spin_unlock(&ar->debug.fwlog_queue.lock);
498
499 /* FIXME: what to do if len == 0? */
500
501 not_copied = copy_to_user(user_buf, buf, len);
502 if (not_copied != 0) {
503 ret_cnt = -EFAULT;
504 goto out;
505 }
506
507 *ppos = *ppos + len;
508
509 ret_cnt = len;
510
511 out:
512 vfree(buf);
513
514 return ret_cnt;
515 }
516
517 static const struct file_operations fops_fwlog_block = {
518 .open = ath6kl_fwlog_open,
519 .release = ath6kl_fwlog_release,
520 .read = ath6kl_fwlog_block_read,
521 .owner = THIS_MODULE,
522 .llseek = default_llseek,
523 };
524
ath6kl_fwlog_mask_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)525 static ssize_t ath6kl_fwlog_mask_read(struct file *file, char __user *user_buf,
526 size_t count, loff_t *ppos)
527 {
528 struct ath6kl *ar = file->private_data;
529 char buf[16];
530 int len;
531
532 len = snprintf(buf, sizeof(buf), "0x%x\n", ar->debug.fwlog_mask);
533
534 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
535 }
536
ath6kl_fwlog_mask_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)537 static ssize_t ath6kl_fwlog_mask_write(struct file *file,
538 const char __user *user_buf,
539 size_t count, loff_t *ppos)
540 {
541 struct ath6kl *ar = file->private_data;
542 int ret;
543
544 ret = kstrtou32_from_user(user_buf, count, 0, &ar->debug.fwlog_mask);
545 if (ret)
546 return ret;
547
548 ret = ath6kl_wmi_config_debug_module_cmd(ar->wmi,
549 ATH6KL_FWLOG_VALID_MASK,
550 ar->debug.fwlog_mask);
551 if (ret)
552 return ret;
553
554 return count;
555 }
556
557 static const struct file_operations fops_fwlog_mask = {
558 .open = simple_open,
559 .read = ath6kl_fwlog_mask_read,
560 .write = ath6kl_fwlog_mask_write,
561 .owner = THIS_MODULE,
562 .llseek = default_llseek,
563 };
564
read_file_tgt_stats(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)565 static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
566 size_t count, loff_t *ppos)
567 {
568 struct ath6kl *ar = file->private_data;
569 struct ath6kl_vif *vif;
570 struct target_stats *tgt_stats;
571 char *buf;
572 unsigned int len = 0, buf_len = 1500;
573 int i;
574 ssize_t ret_cnt;
575 int rv;
576
577 vif = ath6kl_vif_first(ar);
578 if (!vif)
579 return -EIO;
580
581 buf = kzalloc(buf_len, GFP_KERNEL);
582 if (!buf)
583 return -ENOMEM;
584
585 rv = ath6kl_read_tgt_stats(ar, vif);
586 if (rv < 0) {
587 kfree(buf);
588 return rv;
589 }
590
591 tgt_stats = &vif->target_stats;
592
593 len += scnprintf(buf + len, buf_len - len, "\n");
594 len += scnprintf(buf + len, buf_len - len, "%25s\n",
595 "Target Tx stats");
596 len += scnprintf(buf + len, buf_len - len, "%25s\n\n",
597 "=================");
598 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
599 "Ucast packets", tgt_stats->tx_ucast_pkt);
600 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
601 "Bcast packets", tgt_stats->tx_bcast_pkt);
602 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
603 "Ucast byte", tgt_stats->tx_ucast_byte);
604 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
605 "Bcast byte", tgt_stats->tx_bcast_byte);
606 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
607 "Rts success cnt", tgt_stats->tx_rts_success_cnt);
608 for (i = 0; i < 4; i++)
609 len += scnprintf(buf + len, buf_len - len,
610 "%18s %d %10llu\n", "PER on ac",
611 i, tgt_stats->tx_pkt_per_ac[i]);
612 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
613 "Error", tgt_stats->tx_err);
614 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
615 "Fail count", tgt_stats->tx_fail_cnt);
616 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
617 "Retry count", tgt_stats->tx_retry_cnt);
618 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
619 "Multi retry cnt", tgt_stats->tx_mult_retry_cnt);
620 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
621 "Rts fail cnt", tgt_stats->tx_rts_fail_cnt);
622 len += scnprintf(buf + len, buf_len - len, "%25s %10llu\n\n",
623 "TKIP counter measure used",
624 tgt_stats->tkip_cnter_measures_invoked);
625
626 len += scnprintf(buf + len, buf_len - len, "%25s\n",
627 "Target Rx stats");
628 len += scnprintf(buf + len, buf_len - len, "%25s\n",
629 "=================");
630
631 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
632 "Ucast packets", tgt_stats->rx_ucast_pkt);
633 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
634 "Ucast Rate", tgt_stats->rx_ucast_rate);
635 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
636 "Bcast packets", tgt_stats->rx_bcast_pkt);
637 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
638 "Ucast byte", tgt_stats->rx_ucast_byte);
639 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
640 "Bcast byte", tgt_stats->rx_bcast_byte);
641 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
642 "Fragmented pkt", tgt_stats->rx_frgment_pkt);
643 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
644 "Error", tgt_stats->rx_err);
645 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
646 "CRC Err", tgt_stats->rx_crc_err);
647 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
648 "Key cache miss", tgt_stats->rx_key_cache_miss);
649 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
650 "Decrypt Err", tgt_stats->rx_decrypt_err);
651 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
652 "Duplicate frame", tgt_stats->rx_dupl_frame);
653 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
654 "Tkip Mic failure", tgt_stats->tkip_local_mic_fail);
655 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
656 "TKIP format err", tgt_stats->tkip_fmt_err);
657 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
658 "CCMP format Err", tgt_stats->ccmp_fmt_err);
659 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n\n",
660 "CCMP Replay Err", tgt_stats->ccmp_replays);
661
662 len += scnprintf(buf + len, buf_len - len, "%25s\n",
663 "Misc Target stats");
664 len += scnprintf(buf + len, buf_len - len, "%25s\n",
665 "=================");
666 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
667 "Beacon Miss count", tgt_stats->cs_bmiss_cnt);
668 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
669 "Num Connects", tgt_stats->cs_connect_cnt);
670 len += scnprintf(buf + len, buf_len - len, "%20s %10llu\n",
671 "Num disconnects", tgt_stats->cs_discon_cnt);
672 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
673 "Beacon avg rssi", tgt_stats->cs_ave_beacon_rssi);
674 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
675 "ARP pkt received", tgt_stats->arp_received);
676 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
677 "ARP pkt matched", tgt_stats->arp_matched);
678 len += scnprintf(buf + len, buf_len - len, "%20s %10d\n",
679 "ARP pkt replied", tgt_stats->arp_replied);
680
681 if (len > buf_len)
682 len = buf_len;
683
684 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
685
686 kfree(buf);
687 return ret_cnt;
688 }
689
690 static const struct file_operations fops_tgt_stats = {
691 .read = read_file_tgt_stats,
692 .open = simple_open,
693 .owner = THIS_MODULE,
694 .llseek = default_llseek,
695 };
696
697 #define print_credit_info(fmt_str, ep_list_field) \
698 (len += scnprintf(buf + len, buf_len - len, fmt_str, \
699 ep_list->ep_list_field))
700 #define CREDIT_INFO_DISPLAY_STRING_LEN 200
701 #define CREDIT_INFO_LEN 128
702
read_file_credit_dist_stats(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)703 static ssize_t read_file_credit_dist_stats(struct file *file,
704 char __user *user_buf,
705 size_t count, loff_t *ppos)
706 {
707 struct ath6kl *ar = file->private_data;
708 struct htc_target *target = ar->htc_target;
709 struct htc_endpoint_credit_dist *ep_list;
710 char *buf;
711 unsigned int buf_len, len = 0;
712 ssize_t ret_cnt;
713
714 buf_len = CREDIT_INFO_DISPLAY_STRING_LEN +
715 get_queue_depth(&target->cred_dist_list) * CREDIT_INFO_LEN;
716 buf = kzalloc(buf_len, GFP_KERNEL);
717 if (!buf)
718 return -ENOMEM;
719
720 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
721 "Total Avail Credits: ",
722 target->credit_info->total_avail_credits);
723 len += scnprintf(buf + len, buf_len - len, "%25s%5d\n",
724 "Free credits :",
725 target->credit_info->cur_free_credits);
726
727 len += scnprintf(buf + len, buf_len - len,
728 " Epid Flags Cred_norm Cred_min Credits Cred_assngd"
729 " Seek_cred Cred_sz Cred_per_msg Cred_to_dist"
730 " qdepth\n");
731
732 list_for_each_entry(ep_list, &target->cred_dist_list, list) {
733 print_credit_info(" %2d", endpoint);
734 print_credit_info("%10x", dist_flags);
735 print_credit_info("%8d", cred_norm);
736 print_credit_info("%9d", cred_min);
737 print_credit_info("%9d", credits);
738 print_credit_info("%10d", cred_assngd);
739 print_credit_info("%13d", seek_cred);
740 print_credit_info("%12d", cred_sz);
741 print_credit_info("%9d", cred_per_msg);
742 print_credit_info("%14d", cred_to_dist);
743 len += scnprintf(buf + len, buf_len - len, "%12d\n",
744 get_queue_depth(&ep_list->htc_ep->txq));
745 }
746
747 if (len > buf_len)
748 len = buf_len;
749
750 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
751 kfree(buf);
752 return ret_cnt;
753 }
754
755 static const struct file_operations fops_credit_dist_stats = {
756 .read = read_file_credit_dist_stats,
757 .open = simple_open,
758 .owner = THIS_MODULE,
759 .llseek = default_llseek,
760 };
761
print_endpoint_stat(struct htc_target * target,char * buf,unsigned int buf_len,unsigned int len,int offset,const char * name)762 static unsigned int print_endpoint_stat(struct htc_target *target, char *buf,
763 unsigned int buf_len, unsigned int len,
764 int offset, const char *name)
765 {
766 int i;
767 struct htc_endpoint_stats *ep_st;
768 u32 *counter;
769
770 len += scnprintf(buf + len, buf_len - len, "%s:", name);
771 for (i = 0; i < ENDPOINT_MAX; i++) {
772 ep_st = &target->endpoint[i].ep_st;
773 counter = ((u32 *) ep_st) + (offset / 4);
774 len += scnprintf(buf + len, buf_len - len, " %u", *counter);
775 }
776 len += scnprintf(buf + len, buf_len - len, "\n");
777
778 return len;
779 }
780
ath6kl_endpoint_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)781 static ssize_t ath6kl_endpoint_stats_read(struct file *file,
782 char __user *user_buf,
783 size_t count, loff_t *ppos)
784 {
785 struct ath6kl *ar = file->private_data;
786 struct htc_target *target = ar->htc_target;
787 char *buf;
788 unsigned int buf_len, len = 0;
789 ssize_t ret_cnt;
790
791 buf_len = sizeof(struct htc_endpoint_stats) / sizeof(u32) *
792 (25 + ENDPOINT_MAX * 11);
793 buf = kmalloc(buf_len, GFP_KERNEL);
794 if (!buf)
795 return -ENOMEM;
796
797 #define EPSTAT(name) \
798 do { \
799 len = print_endpoint_stat(target, buf, buf_len, len, \
800 offsetof(struct htc_endpoint_stats, \
801 name), \
802 #name); \
803 } while (0)
804
805 EPSTAT(cred_low_indicate);
806 EPSTAT(tx_issued);
807 EPSTAT(tx_pkt_bundled);
808 EPSTAT(tx_bundles);
809 EPSTAT(tx_dropped);
810 EPSTAT(tx_cred_rpt);
811 EPSTAT(cred_rpt_from_rx);
812 EPSTAT(cred_rpt_from_other);
813 EPSTAT(cred_rpt_ep0);
814 EPSTAT(cred_from_rx);
815 EPSTAT(cred_from_other);
816 EPSTAT(cred_from_ep0);
817 EPSTAT(cred_cosumd);
818 EPSTAT(cred_retnd);
819 EPSTAT(rx_pkts);
820 EPSTAT(rx_lkahds);
821 EPSTAT(rx_bundl);
822 EPSTAT(rx_bundle_lkahd);
823 EPSTAT(rx_bundle_from_hdr);
824 EPSTAT(rx_alloc_thresh_hit);
825 EPSTAT(rxalloc_thresh_byte);
826 #undef EPSTAT
827
828 if (len > buf_len)
829 len = buf_len;
830
831 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
832 kfree(buf);
833 return ret_cnt;
834 }
835
ath6kl_endpoint_stats_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)836 static ssize_t ath6kl_endpoint_stats_write(struct file *file,
837 const char __user *user_buf,
838 size_t count, loff_t *ppos)
839 {
840 struct ath6kl *ar = file->private_data;
841 struct htc_target *target = ar->htc_target;
842 int ret, i;
843 u32 val;
844 struct htc_endpoint_stats *ep_st;
845
846 ret = kstrtou32_from_user(user_buf, count, 0, &val);
847 if (ret)
848 return ret;
849 if (val == 0) {
850 for (i = 0; i < ENDPOINT_MAX; i++) {
851 ep_st = &target->endpoint[i].ep_st;
852 memset(ep_st, 0, sizeof(*ep_st));
853 }
854 }
855
856 return count;
857 }
858
859 static const struct file_operations fops_endpoint_stats = {
860 .open = simple_open,
861 .read = ath6kl_endpoint_stats_read,
862 .write = ath6kl_endpoint_stats_write,
863 .owner = THIS_MODULE,
864 .llseek = default_llseek,
865 };
866
ath6kl_get_num_reg(void)867 static unsigned long ath6kl_get_num_reg(void)
868 {
869 int i;
870 unsigned long n_reg = 0;
871
872 for (i = 0; i < ARRAY_SIZE(diag_reg); i++)
873 n_reg = n_reg +
874 (diag_reg[i].reg_end - diag_reg[i].reg_start) / 4 + 1;
875
876 return n_reg;
877 }
878
ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)879 static bool ath6kl_dbg_is_diag_reg_valid(u32 reg_addr)
880 {
881 int i;
882
883 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
884 if (reg_addr >= diag_reg[i].reg_start &&
885 reg_addr <= diag_reg[i].reg_end)
886 return true;
887 }
888
889 return false;
890 }
891
ath6kl_regread_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)892 static ssize_t ath6kl_regread_read(struct file *file, char __user *user_buf,
893 size_t count, loff_t *ppos)
894 {
895 struct ath6kl *ar = file->private_data;
896 u8 buf[50];
897 unsigned int len = 0;
898
899 if (ar->debug.dbgfs_diag_reg)
900 len += scnprintf(buf + len, sizeof(buf) - len, "0x%x\n",
901 ar->debug.dbgfs_diag_reg);
902 else
903 len += scnprintf(buf + len, sizeof(buf) - len,
904 "All diag registers\n");
905
906 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
907 }
908
ath6kl_regread_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)909 static ssize_t ath6kl_regread_write(struct file *file,
910 const char __user *user_buf,
911 size_t count, loff_t *ppos)
912 {
913 struct ath6kl *ar = file->private_data;
914 unsigned long reg_addr;
915
916 if (kstrtoul_from_user(user_buf, count, 0, ®_addr))
917 return -EINVAL;
918
919 if ((reg_addr % 4) != 0)
920 return -EINVAL;
921
922 if (reg_addr && !ath6kl_dbg_is_diag_reg_valid(reg_addr))
923 return -EINVAL;
924
925 ar->debug.dbgfs_diag_reg = reg_addr;
926
927 return count;
928 }
929
930 static const struct file_operations fops_diag_reg_read = {
931 .read = ath6kl_regread_read,
932 .write = ath6kl_regread_write,
933 .open = simple_open,
934 .owner = THIS_MODULE,
935 .llseek = default_llseek,
936 };
937
ath6kl_regdump_open(struct inode * inode,struct file * file)938 static int ath6kl_regdump_open(struct inode *inode, struct file *file)
939 {
940 struct ath6kl *ar = inode->i_private;
941 u8 *buf;
942 unsigned long int reg_len;
943 unsigned int len = 0, n_reg;
944 u32 addr;
945 __le32 reg_val;
946 int i, status;
947
948 /* Dump all the registers if no register is specified */
949 if (!ar->debug.dbgfs_diag_reg)
950 n_reg = ath6kl_get_num_reg();
951 else
952 n_reg = 1;
953
954 reg_len = n_reg * REG_OUTPUT_LEN_PER_LINE;
955 if (n_reg > 1)
956 reg_len += REGTYPE_STR_LEN;
957
958 buf = vmalloc(reg_len);
959 if (!buf)
960 return -ENOMEM;
961
962 if (n_reg == 1) {
963 addr = ar->debug.dbgfs_diag_reg;
964
965 status = ath6kl_diag_read32(ar,
966 TARG_VTOP(ar->target_type, addr),
967 (u32 *)®_val);
968 if (status)
969 goto fail_reg_read;
970
971 len += scnprintf(buf + len, reg_len - len,
972 "0x%06x 0x%08x\n", addr, le32_to_cpu(reg_val));
973 goto done;
974 }
975
976 for (i = 0; i < ARRAY_SIZE(diag_reg); i++) {
977 len += scnprintf(buf + len, reg_len - len,
978 "%s\n", diag_reg[i].reg_info);
979 for (addr = diag_reg[i].reg_start;
980 addr <= diag_reg[i].reg_end; addr += 4) {
981 status = ath6kl_diag_read32(ar,
982 TARG_VTOP(ar->target_type, addr),
983 (u32 *)®_val);
984 if (status)
985 goto fail_reg_read;
986
987 len += scnprintf(buf + len, reg_len - len,
988 "0x%06x 0x%08x\n",
989 addr, le32_to_cpu(reg_val));
990 }
991 }
992
993 done:
994 file->private_data = buf;
995 return 0;
996
997 fail_reg_read:
998 ath6kl_warn("Unable to read memory:%u\n", addr);
999 vfree(buf);
1000 return -EIO;
1001 }
1002
ath6kl_regdump_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1003 static ssize_t ath6kl_regdump_read(struct file *file, char __user *user_buf,
1004 size_t count, loff_t *ppos)
1005 {
1006 u8 *buf = file->private_data;
1007 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
1008 }
1009
ath6kl_regdump_release(struct inode * inode,struct file * file)1010 static int ath6kl_regdump_release(struct inode *inode, struct file *file)
1011 {
1012 vfree(file->private_data);
1013 return 0;
1014 }
1015
1016 static const struct file_operations fops_reg_dump = {
1017 .open = ath6kl_regdump_open,
1018 .read = ath6kl_regdump_read,
1019 .release = ath6kl_regdump_release,
1020 .owner = THIS_MODULE,
1021 .llseek = default_llseek,
1022 };
1023
ath6kl_lrssi_roam_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1024 static ssize_t ath6kl_lrssi_roam_write(struct file *file,
1025 const char __user *user_buf,
1026 size_t count, loff_t *ppos)
1027 {
1028 struct ath6kl *ar = file->private_data;
1029 unsigned long lrssi_roam_threshold;
1030 int ret;
1031
1032 if (kstrtoul_from_user(user_buf, count, 0, &lrssi_roam_threshold))
1033 return -EINVAL;
1034
1035 ar->lrssi_roam_threshold = lrssi_roam_threshold;
1036
1037 ret = ath6kl_wmi_set_roam_lrssi_cmd(ar->wmi, ar->lrssi_roam_threshold);
1038
1039 if (ret)
1040 return ret;
1041 return count;
1042 }
1043
ath6kl_lrssi_roam_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1044 static ssize_t ath6kl_lrssi_roam_read(struct file *file,
1045 char __user *user_buf,
1046 size_t count, loff_t *ppos)
1047 {
1048 struct ath6kl *ar = file->private_data;
1049 char buf[32];
1050 unsigned int len;
1051
1052 len = snprintf(buf, sizeof(buf), "%u\n", ar->lrssi_roam_threshold);
1053
1054 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1055 }
1056
1057 static const struct file_operations fops_lrssi_roam_threshold = {
1058 .read = ath6kl_lrssi_roam_read,
1059 .write = ath6kl_lrssi_roam_write,
1060 .open = simple_open,
1061 .owner = THIS_MODULE,
1062 .llseek = default_llseek,
1063 };
1064
ath6kl_regwrite_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1065 static ssize_t ath6kl_regwrite_read(struct file *file,
1066 char __user *user_buf,
1067 size_t count, loff_t *ppos)
1068 {
1069 struct ath6kl *ar = file->private_data;
1070 u8 buf[32];
1071 unsigned int len = 0;
1072
1073 len = scnprintf(buf, sizeof(buf), "Addr: 0x%x Val: 0x%x\n",
1074 ar->debug.diag_reg_addr_wr, ar->debug.diag_reg_val_wr);
1075
1076 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1077 }
1078
ath6kl_regwrite_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1079 static ssize_t ath6kl_regwrite_write(struct file *file,
1080 const char __user *user_buf,
1081 size_t count, loff_t *ppos)
1082 {
1083 struct ath6kl *ar = file->private_data;
1084 char buf[32];
1085 char *sptr, *token;
1086 unsigned int len = 0;
1087 u32 reg_addr, reg_val;
1088
1089 len = min(count, sizeof(buf) - 1);
1090 if (copy_from_user(buf, user_buf, len))
1091 return -EFAULT;
1092
1093 buf[len] = '\0';
1094 sptr = buf;
1095
1096 token = strsep(&sptr, "=");
1097 if (!token)
1098 return -EINVAL;
1099
1100 if (kstrtou32(token, 0, ®_addr))
1101 return -EINVAL;
1102
1103 if (!ath6kl_dbg_is_diag_reg_valid(reg_addr))
1104 return -EINVAL;
1105
1106 if (kstrtou32(sptr, 0, ®_val))
1107 return -EINVAL;
1108
1109 ar->debug.diag_reg_addr_wr = reg_addr;
1110 ar->debug.diag_reg_val_wr = reg_val;
1111
1112 if (ath6kl_diag_write32(ar, ar->debug.diag_reg_addr_wr,
1113 cpu_to_le32(ar->debug.diag_reg_val_wr)))
1114 return -EIO;
1115
1116 return count;
1117 }
1118
1119 static const struct file_operations fops_diag_reg_write = {
1120 .read = ath6kl_regwrite_read,
1121 .write = ath6kl_regwrite_write,
1122 .open = simple_open,
1123 .owner = THIS_MODULE,
1124 .llseek = default_llseek,
1125 };
1126
ath6kl_debug_roam_tbl_event(struct ath6kl * ar,const void * buf,size_t len)1127 int ath6kl_debug_roam_tbl_event(struct ath6kl *ar, const void *buf,
1128 size_t len)
1129 {
1130 const struct wmi_target_roam_tbl *tbl;
1131 u16 num_entries;
1132
1133 if (len < sizeof(*tbl))
1134 return -EINVAL;
1135
1136 tbl = (const struct wmi_target_roam_tbl *) buf;
1137 num_entries = le16_to_cpu(tbl->num_entries);
1138 if (struct_size(tbl, info, num_entries) > len)
1139 return -EINVAL;
1140
1141 if (ar->debug.roam_tbl == NULL ||
1142 ar->debug.roam_tbl_len < (unsigned int) len) {
1143 kfree(ar->debug.roam_tbl);
1144 ar->debug.roam_tbl = kmalloc(len, GFP_ATOMIC);
1145 if (ar->debug.roam_tbl == NULL)
1146 return -ENOMEM;
1147 }
1148
1149 memcpy(ar->debug.roam_tbl, buf, len);
1150 ar->debug.roam_tbl_len = len;
1151
1152 if (test_bit(ROAM_TBL_PEND, &ar->flag)) {
1153 clear_bit(ROAM_TBL_PEND, &ar->flag);
1154 wake_up(&ar->event_wq);
1155 }
1156
1157 return 0;
1158 }
1159
ath6kl_roam_table_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1160 static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf,
1161 size_t count, loff_t *ppos)
1162 {
1163 struct ath6kl *ar = file->private_data;
1164 int ret;
1165 long left;
1166 struct wmi_target_roam_tbl *tbl;
1167 u16 num_entries, i;
1168 char *buf;
1169 unsigned int len, buf_len;
1170 ssize_t ret_cnt;
1171
1172 if (down_interruptible(&ar->sem))
1173 return -EBUSY;
1174
1175 set_bit(ROAM_TBL_PEND, &ar->flag);
1176
1177 ret = ath6kl_wmi_get_roam_tbl_cmd(ar->wmi);
1178 if (ret) {
1179 up(&ar->sem);
1180 return ret;
1181 }
1182
1183 left = wait_event_interruptible_timeout(
1184 ar->event_wq, !test_bit(ROAM_TBL_PEND, &ar->flag), WMI_TIMEOUT);
1185 up(&ar->sem);
1186
1187 if (left <= 0)
1188 return -ETIMEDOUT;
1189
1190 if (ar->debug.roam_tbl == NULL)
1191 return -ENOMEM;
1192
1193 tbl = (struct wmi_target_roam_tbl *) ar->debug.roam_tbl;
1194 num_entries = le16_to_cpu(tbl->num_entries);
1195
1196 buf_len = 100 + num_entries * 100;
1197 buf = kzalloc(buf_len, GFP_KERNEL);
1198 if (buf == NULL)
1199 return -ENOMEM;
1200 len = 0;
1201 len += scnprintf(buf + len, buf_len - len,
1202 "roam_mode=%u\n\n"
1203 "# roam_util bssid rssi rssidt last_rssi util bias\n",
1204 le16_to_cpu(tbl->roam_mode));
1205
1206 for (i = 0; i < num_entries; i++) {
1207 struct wmi_bss_roam_info *info = &tbl->info[i];
1208 len += scnprintf(buf + len, buf_len - len,
1209 "%d %pM %d %d %d %d %d\n",
1210 a_sle32_to_cpu(info->roam_util), info->bssid,
1211 info->rssi, info->rssidt, info->last_rssi,
1212 info->util, info->bias);
1213 }
1214
1215 if (len > buf_len)
1216 len = buf_len;
1217
1218 ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
1219
1220 kfree(buf);
1221 return ret_cnt;
1222 }
1223
1224 static const struct file_operations fops_roam_table = {
1225 .read = ath6kl_roam_table_read,
1226 .open = simple_open,
1227 .owner = THIS_MODULE,
1228 .llseek = default_llseek,
1229 };
1230
ath6kl_force_roam_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1231 static ssize_t ath6kl_force_roam_write(struct file *file,
1232 const char __user *user_buf,
1233 size_t count, loff_t *ppos)
1234 {
1235 struct ath6kl *ar = file->private_data;
1236 int ret;
1237 char buf[20];
1238 size_t len;
1239 u8 bssid[ETH_ALEN];
1240
1241 len = min(count, sizeof(buf) - 1);
1242 if (copy_from_user(buf, user_buf, len))
1243 return -EFAULT;
1244 buf[len] = '\0';
1245
1246 if (!mac_pton(buf, bssid))
1247 return -EINVAL;
1248
1249 ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
1250 if (ret)
1251 return ret;
1252
1253 return count;
1254 }
1255
1256 static const struct file_operations fops_force_roam = {
1257 .write = ath6kl_force_roam_write,
1258 .open = simple_open,
1259 .owner = THIS_MODULE,
1260 .llseek = default_llseek,
1261 };
1262
ath6kl_roam_mode_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1263 static ssize_t ath6kl_roam_mode_write(struct file *file,
1264 const char __user *user_buf,
1265 size_t count, loff_t *ppos)
1266 {
1267 struct ath6kl *ar = file->private_data;
1268 int ret;
1269 char buf[20];
1270 size_t len;
1271 enum wmi_roam_mode mode;
1272
1273 len = min(count, sizeof(buf) - 1);
1274 if (copy_from_user(buf, user_buf, len))
1275 return -EFAULT;
1276 buf[len] = '\0';
1277 if (len > 0 && buf[len - 1] == '\n')
1278 buf[len - 1] = '\0';
1279
1280 if (strcasecmp(buf, "default") == 0)
1281 mode = WMI_DEFAULT_ROAM_MODE;
1282 else if (strcasecmp(buf, "bssbias") == 0)
1283 mode = WMI_HOST_BIAS_ROAM_MODE;
1284 else if (strcasecmp(buf, "lock") == 0)
1285 mode = WMI_LOCK_BSS_MODE;
1286 else
1287 return -EINVAL;
1288
1289 ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode);
1290 if (ret)
1291 return ret;
1292
1293 return count;
1294 }
1295
1296 static const struct file_operations fops_roam_mode = {
1297 .write = ath6kl_roam_mode_write,
1298 .open = simple_open,
1299 .owner = THIS_MODULE,
1300 .llseek = default_llseek,
1301 };
1302
ath6kl_debug_set_keepalive(struct ath6kl * ar,u8 keepalive)1303 void ath6kl_debug_set_keepalive(struct ath6kl *ar, u8 keepalive)
1304 {
1305 ar->debug.keepalive = keepalive;
1306 }
1307
ath6kl_keepalive_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1308 static ssize_t ath6kl_keepalive_read(struct file *file, char __user *user_buf,
1309 size_t count, loff_t *ppos)
1310 {
1311 struct ath6kl *ar = file->private_data;
1312 char buf[16];
1313 int len;
1314
1315 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.keepalive);
1316
1317 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1318 }
1319
ath6kl_keepalive_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1320 static ssize_t ath6kl_keepalive_write(struct file *file,
1321 const char __user *user_buf,
1322 size_t count, loff_t *ppos)
1323 {
1324 struct ath6kl *ar = file->private_data;
1325 int ret;
1326 u8 val;
1327
1328 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1329 if (ret)
1330 return ret;
1331
1332 ret = ath6kl_wmi_set_keepalive_cmd(ar->wmi, 0, val);
1333 if (ret)
1334 return ret;
1335
1336 return count;
1337 }
1338
1339 static const struct file_operations fops_keepalive = {
1340 .open = simple_open,
1341 .read = ath6kl_keepalive_read,
1342 .write = ath6kl_keepalive_write,
1343 .owner = THIS_MODULE,
1344 .llseek = default_llseek,
1345 };
1346
ath6kl_debug_set_disconnect_timeout(struct ath6kl * ar,u8 timeout)1347 void ath6kl_debug_set_disconnect_timeout(struct ath6kl *ar, u8 timeout)
1348 {
1349 ar->debug.disc_timeout = timeout;
1350 }
1351
ath6kl_disconnect_timeout_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1352 static ssize_t ath6kl_disconnect_timeout_read(struct file *file,
1353 char __user *user_buf,
1354 size_t count, loff_t *ppos)
1355 {
1356 struct ath6kl *ar = file->private_data;
1357 char buf[16];
1358 int len;
1359
1360 len = snprintf(buf, sizeof(buf), "%u\n", ar->debug.disc_timeout);
1361
1362 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1363 }
1364
ath6kl_disconnect_timeout_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1365 static ssize_t ath6kl_disconnect_timeout_write(struct file *file,
1366 const char __user *user_buf,
1367 size_t count, loff_t *ppos)
1368 {
1369 struct ath6kl *ar = file->private_data;
1370 int ret;
1371 u8 val;
1372
1373 ret = kstrtou8_from_user(user_buf, count, 0, &val);
1374 if (ret)
1375 return ret;
1376
1377 ret = ath6kl_wmi_disctimeout_cmd(ar->wmi, 0, val);
1378 if (ret)
1379 return ret;
1380
1381 return count;
1382 }
1383
1384 static const struct file_operations fops_disconnect_timeout = {
1385 .open = simple_open,
1386 .read = ath6kl_disconnect_timeout_read,
1387 .write = ath6kl_disconnect_timeout_write,
1388 .owner = THIS_MODULE,
1389 .llseek = default_llseek,
1390 };
1391
ath6kl_create_qos_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1392 static ssize_t ath6kl_create_qos_write(struct file *file,
1393 const char __user *user_buf,
1394 size_t count, loff_t *ppos)
1395 {
1396 struct ath6kl *ar = file->private_data;
1397 struct ath6kl_vif *vif;
1398 char buf[200];
1399 ssize_t len;
1400 char *sptr, *token;
1401 struct wmi_create_pstream_cmd pstream;
1402 u32 val32;
1403 u16 val16;
1404
1405 vif = ath6kl_vif_first(ar);
1406 if (!vif)
1407 return -EIO;
1408
1409 len = min(count, sizeof(buf) - 1);
1410 if (copy_from_user(buf, user_buf, len))
1411 return -EFAULT;
1412 buf[len] = '\0';
1413 sptr = buf;
1414
1415 token = strsep(&sptr, " ");
1416 if (!token)
1417 return -EINVAL;
1418 if (kstrtou8(token, 0, &pstream.user_pri))
1419 return -EINVAL;
1420
1421 token = strsep(&sptr, " ");
1422 if (!token)
1423 return -EINVAL;
1424 if (kstrtou8(token, 0, &pstream.traffic_direc))
1425 return -EINVAL;
1426
1427 token = strsep(&sptr, " ");
1428 if (!token)
1429 return -EINVAL;
1430 if (kstrtou8(token, 0, &pstream.traffic_class))
1431 return -EINVAL;
1432
1433 token = strsep(&sptr, " ");
1434 if (!token)
1435 return -EINVAL;
1436 if (kstrtou8(token, 0, &pstream.traffic_type))
1437 return -EINVAL;
1438
1439 token = strsep(&sptr, " ");
1440 if (!token)
1441 return -EINVAL;
1442 if (kstrtou8(token, 0, &pstream.voice_psc_cap))
1443 return -EINVAL;
1444
1445 token = strsep(&sptr, " ");
1446 if (!token)
1447 return -EINVAL;
1448 if (kstrtou32(token, 0, &val32))
1449 return -EINVAL;
1450 pstream.min_service_int = cpu_to_le32(val32);
1451
1452 token = strsep(&sptr, " ");
1453 if (!token)
1454 return -EINVAL;
1455 if (kstrtou32(token, 0, &val32))
1456 return -EINVAL;
1457 pstream.max_service_int = cpu_to_le32(val32);
1458
1459 token = strsep(&sptr, " ");
1460 if (!token)
1461 return -EINVAL;
1462 if (kstrtou32(token, 0, &val32))
1463 return -EINVAL;
1464 pstream.inactivity_int = cpu_to_le32(val32);
1465
1466 token = strsep(&sptr, " ");
1467 if (!token)
1468 return -EINVAL;
1469 if (kstrtou32(token, 0, &val32))
1470 return -EINVAL;
1471 pstream.suspension_int = cpu_to_le32(val32);
1472
1473 token = strsep(&sptr, " ");
1474 if (!token)
1475 return -EINVAL;
1476 if (kstrtou32(token, 0, &val32))
1477 return -EINVAL;
1478 pstream.service_start_time = cpu_to_le32(val32);
1479
1480 token = strsep(&sptr, " ");
1481 if (!token)
1482 return -EINVAL;
1483 if (kstrtou8(token, 0, &pstream.tsid))
1484 return -EINVAL;
1485
1486 token = strsep(&sptr, " ");
1487 if (!token)
1488 return -EINVAL;
1489 if (kstrtou16(token, 0, &val16))
1490 return -EINVAL;
1491 pstream.nominal_msdu = cpu_to_le16(val16);
1492
1493 token = strsep(&sptr, " ");
1494 if (!token)
1495 return -EINVAL;
1496 if (kstrtou16(token, 0, &val16))
1497 return -EINVAL;
1498 pstream.max_msdu = cpu_to_le16(val16);
1499
1500 token = strsep(&sptr, " ");
1501 if (!token)
1502 return -EINVAL;
1503 if (kstrtou32(token, 0, &val32))
1504 return -EINVAL;
1505 pstream.min_data_rate = cpu_to_le32(val32);
1506
1507 token = strsep(&sptr, " ");
1508 if (!token)
1509 return -EINVAL;
1510 if (kstrtou32(token, 0, &val32))
1511 return -EINVAL;
1512 pstream.mean_data_rate = cpu_to_le32(val32);
1513
1514 token = strsep(&sptr, " ");
1515 if (!token)
1516 return -EINVAL;
1517 if (kstrtou32(token, 0, &val32))
1518 return -EINVAL;
1519 pstream.peak_data_rate = cpu_to_le32(val32);
1520
1521 token = strsep(&sptr, " ");
1522 if (!token)
1523 return -EINVAL;
1524 if (kstrtou32(token, 0, &val32))
1525 return -EINVAL;
1526 pstream.max_burst_size = cpu_to_le32(val32);
1527
1528 token = strsep(&sptr, " ");
1529 if (!token)
1530 return -EINVAL;
1531 if (kstrtou32(token, 0, &val32))
1532 return -EINVAL;
1533 pstream.delay_bound = cpu_to_le32(val32);
1534
1535 token = strsep(&sptr, " ");
1536 if (!token)
1537 return -EINVAL;
1538 if (kstrtou32(token, 0, &val32))
1539 return -EINVAL;
1540 pstream.min_phy_rate = cpu_to_le32(val32);
1541
1542 token = strsep(&sptr, " ");
1543 if (!token)
1544 return -EINVAL;
1545 if (kstrtou32(token, 0, &val32))
1546 return -EINVAL;
1547 pstream.sba = cpu_to_le32(val32);
1548
1549 token = strsep(&sptr, " ");
1550 if (!token)
1551 return -EINVAL;
1552 if (kstrtou32(token, 0, &val32))
1553 return -EINVAL;
1554 pstream.medium_time = cpu_to_le32(val32);
1555
1556 pstream.nominal_phy = le32_to_cpu(pstream.min_phy_rate) / 1000000;
1557
1558 ath6kl_wmi_create_pstream_cmd(ar->wmi, vif->fw_vif_idx, &pstream);
1559
1560 return count;
1561 }
1562
1563 static const struct file_operations fops_create_qos = {
1564 .write = ath6kl_create_qos_write,
1565 .open = simple_open,
1566 .owner = THIS_MODULE,
1567 .llseek = default_llseek,
1568 };
1569
ath6kl_delete_qos_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1570 static ssize_t ath6kl_delete_qos_write(struct file *file,
1571 const char __user *user_buf,
1572 size_t count, loff_t *ppos)
1573 {
1574 struct ath6kl *ar = file->private_data;
1575 struct ath6kl_vif *vif;
1576 char buf[100];
1577 ssize_t len;
1578 char *sptr, *token;
1579 u8 traffic_class;
1580 u8 tsid;
1581
1582 vif = ath6kl_vif_first(ar);
1583 if (!vif)
1584 return -EIO;
1585
1586 len = min(count, sizeof(buf) - 1);
1587 if (copy_from_user(buf, user_buf, len))
1588 return -EFAULT;
1589 buf[len] = '\0';
1590 sptr = buf;
1591
1592 token = strsep(&sptr, " ");
1593 if (!token)
1594 return -EINVAL;
1595 if (kstrtou8(token, 0, &traffic_class))
1596 return -EINVAL;
1597
1598 token = strsep(&sptr, " ");
1599 if (!token)
1600 return -EINVAL;
1601 if (kstrtou8(token, 0, &tsid))
1602 return -EINVAL;
1603
1604 ath6kl_wmi_delete_pstream_cmd(ar->wmi, vif->fw_vif_idx,
1605 traffic_class, tsid);
1606
1607 return count;
1608 }
1609
1610 static const struct file_operations fops_delete_qos = {
1611 .write = ath6kl_delete_qos_write,
1612 .open = simple_open,
1613 .owner = THIS_MODULE,
1614 .llseek = default_llseek,
1615 };
1616
ath6kl_bgscan_int_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1617 static ssize_t ath6kl_bgscan_int_write(struct file *file,
1618 const char __user *user_buf,
1619 size_t count, loff_t *ppos)
1620 {
1621 struct ath6kl *ar = file->private_data;
1622 struct ath6kl_vif *vif;
1623 u16 bgscan_int;
1624 char buf[32];
1625 ssize_t len;
1626
1627 vif = ath6kl_vif_first(ar);
1628 if (!vif)
1629 return -EIO;
1630
1631 len = min(count, sizeof(buf) - 1);
1632 if (copy_from_user(buf, user_buf, len))
1633 return -EFAULT;
1634
1635 buf[len] = '\0';
1636 if (kstrtou16(buf, 0, &bgscan_int))
1637 return -EINVAL;
1638
1639 if (bgscan_int == 0)
1640 bgscan_int = 0xffff;
1641
1642 vif->bg_scan_period = bgscan_int;
1643
1644 ath6kl_wmi_scanparams_cmd(ar->wmi, 0, 0, 0, bgscan_int, 0, 0, 0, 3,
1645 0, 0, 0);
1646
1647 return count;
1648 }
1649
1650 static const struct file_operations fops_bgscan_int = {
1651 .write = ath6kl_bgscan_int_write,
1652 .open = simple_open,
1653 .owner = THIS_MODULE,
1654 .llseek = default_llseek,
1655 };
1656
ath6kl_listen_int_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1657 static ssize_t ath6kl_listen_int_write(struct file *file,
1658 const char __user *user_buf,
1659 size_t count, loff_t *ppos)
1660 {
1661 struct ath6kl *ar = file->private_data;
1662 struct ath6kl_vif *vif;
1663 u16 listen_interval;
1664 char buf[32];
1665 ssize_t len;
1666
1667 vif = ath6kl_vif_first(ar);
1668 if (!vif)
1669 return -EIO;
1670
1671 len = min(count, sizeof(buf) - 1);
1672 if (copy_from_user(buf, user_buf, len))
1673 return -EFAULT;
1674
1675 buf[len] = '\0';
1676 if (kstrtou16(buf, 0, &listen_interval))
1677 return -EINVAL;
1678
1679 if ((listen_interval < 15) || (listen_interval > 3000))
1680 return -EINVAL;
1681
1682 vif->listen_intvl_t = listen_interval;
1683 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
1684 vif->listen_intvl_t, 0);
1685
1686 return count;
1687 }
1688
ath6kl_listen_int_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1689 static ssize_t ath6kl_listen_int_read(struct file *file,
1690 char __user *user_buf,
1691 size_t count, loff_t *ppos)
1692 {
1693 struct ath6kl *ar = file->private_data;
1694 struct ath6kl_vif *vif;
1695 char buf[32];
1696 int len;
1697
1698 vif = ath6kl_vif_first(ar);
1699 if (!vif)
1700 return -EIO;
1701
1702 len = scnprintf(buf, sizeof(buf), "%u\n", vif->listen_intvl_t);
1703
1704 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1705 }
1706
1707 static const struct file_operations fops_listen_int = {
1708 .read = ath6kl_listen_int_read,
1709 .write = ath6kl_listen_int_write,
1710 .open = simple_open,
1711 .owner = THIS_MODULE,
1712 .llseek = default_llseek,
1713 };
1714
ath6kl_power_params_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1715 static ssize_t ath6kl_power_params_write(struct file *file,
1716 const char __user *user_buf,
1717 size_t count, loff_t *ppos)
1718 {
1719 struct ath6kl *ar = file->private_data;
1720 u8 buf[100];
1721 unsigned int len = 0;
1722 char *sptr, *token;
1723 u16 idle_period, ps_poll_num, dtim,
1724 tx_wakeup, num_tx;
1725
1726 len = min(count, sizeof(buf) - 1);
1727 if (copy_from_user(buf, user_buf, len))
1728 return -EFAULT;
1729 buf[len] = '\0';
1730 sptr = buf;
1731
1732 token = strsep(&sptr, " ");
1733 if (!token)
1734 return -EINVAL;
1735 if (kstrtou16(token, 0, &idle_period))
1736 return -EINVAL;
1737
1738 token = strsep(&sptr, " ");
1739 if (!token)
1740 return -EINVAL;
1741 if (kstrtou16(token, 0, &ps_poll_num))
1742 return -EINVAL;
1743
1744 token = strsep(&sptr, " ");
1745 if (!token)
1746 return -EINVAL;
1747 if (kstrtou16(token, 0, &dtim))
1748 return -EINVAL;
1749
1750 token = strsep(&sptr, " ");
1751 if (!token)
1752 return -EINVAL;
1753 if (kstrtou16(token, 0, &tx_wakeup))
1754 return -EINVAL;
1755
1756 token = strsep(&sptr, " ");
1757 if (!token)
1758 return -EINVAL;
1759 if (kstrtou16(token, 0, &num_tx))
1760 return -EINVAL;
1761
1762 ath6kl_wmi_pmparams_cmd(ar->wmi, 0, idle_period, ps_poll_num,
1763 dtim, tx_wakeup, num_tx, 0);
1764
1765 return count;
1766 }
1767
1768 static const struct file_operations fops_power_params = {
1769 .write = ath6kl_power_params_write,
1770 .open = simple_open,
1771 .owner = THIS_MODULE,
1772 .llseek = default_llseek,
1773 };
1774
ath6kl_debug_init(struct ath6kl * ar)1775 void ath6kl_debug_init(struct ath6kl *ar)
1776 {
1777 skb_queue_head_init(&ar->debug.fwlog_queue);
1778 init_completion(&ar->debug.fwlog_completion);
1779
1780 /*
1781 * Actually we are lying here but don't know how to read the mask
1782 * value from the firmware.
1783 */
1784 ar->debug.fwlog_mask = 0;
1785 }
1786
1787 /*
1788 * Initialisation needs to happen in two stages as fwlog events can come
1789 * before cfg80211 is initialised, and debugfs depends on cfg80211
1790 * initialisation.
1791 */
ath6kl_debug_init_fs(struct ath6kl * ar)1792 int ath6kl_debug_init_fs(struct ath6kl *ar)
1793 {
1794 ar->debugfs_phy = debugfs_create_dir("ath6kl",
1795 ar->wiphy->debugfsdir);
1796
1797 debugfs_create_file("tgt_stats", 0400, ar->debugfs_phy, ar,
1798 &fops_tgt_stats);
1799
1800 if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO)
1801 debugfs_create_file("credit_dist_stats", 0400,
1802 ar->debugfs_phy, ar,
1803 &fops_credit_dist_stats);
1804
1805 debugfs_create_file("endpoint_stats", 0600,
1806 ar->debugfs_phy, ar, &fops_endpoint_stats);
1807
1808 debugfs_create_file("fwlog", 0400, ar->debugfs_phy, ar, &fops_fwlog);
1809
1810 debugfs_create_file("fwlog_block", 0400, ar->debugfs_phy, ar,
1811 &fops_fwlog_block);
1812
1813 debugfs_create_file("fwlog_mask", 0600, ar->debugfs_phy,
1814 ar, &fops_fwlog_mask);
1815
1816 debugfs_create_file("reg_addr", 0600, ar->debugfs_phy, ar,
1817 &fops_diag_reg_read);
1818
1819 debugfs_create_file("reg_dump", 0400, ar->debugfs_phy, ar,
1820 &fops_reg_dump);
1821
1822 debugfs_create_file("lrssi_roam_threshold", 0600,
1823 ar->debugfs_phy, ar, &fops_lrssi_roam_threshold);
1824
1825 debugfs_create_file("reg_write", 0600,
1826 ar->debugfs_phy, ar, &fops_diag_reg_write);
1827
1828 debugfs_create_file("war_stats", 0400, ar->debugfs_phy, ar,
1829 &fops_war_stats);
1830
1831 debugfs_create_file("roam_table", 0400, ar->debugfs_phy, ar,
1832 &fops_roam_table);
1833
1834 debugfs_create_file("force_roam", 0200, ar->debugfs_phy, ar,
1835 &fops_force_roam);
1836
1837 debugfs_create_file("roam_mode", 0200, ar->debugfs_phy, ar,
1838 &fops_roam_mode);
1839
1840 debugfs_create_file("keepalive", 0600, ar->debugfs_phy, ar,
1841 &fops_keepalive);
1842
1843 debugfs_create_file("disconnect_timeout", 0600,
1844 ar->debugfs_phy, ar, &fops_disconnect_timeout);
1845
1846 debugfs_create_file("create_qos", 0200, ar->debugfs_phy, ar,
1847 &fops_create_qos);
1848
1849 debugfs_create_file("delete_qos", 0200, ar->debugfs_phy, ar,
1850 &fops_delete_qos);
1851
1852 debugfs_create_file("bgscan_interval", 0200,
1853 ar->debugfs_phy, ar, &fops_bgscan_int);
1854
1855 debugfs_create_file("listen_interval", 0600,
1856 ar->debugfs_phy, ar, &fops_listen_int);
1857
1858 debugfs_create_file("power_params", 0200, ar->debugfs_phy, ar,
1859 &fops_power_params);
1860
1861 return 0;
1862 }
1863
ath6kl_debug_cleanup(struct ath6kl * ar)1864 void ath6kl_debug_cleanup(struct ath6kl *ar)
1865 {
1866 skb_queue_purge(&ar->debug.fwlog_queue);
1867 complete(&ar->debug.fwlog_completion);
1868 kfree(ar->debug.roam_tbl);
1869 }
1870
1871 #endif
1872