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rt2x00: Consistently name skb frame descriptor skbdesc.
[deliverable/linux.git] / drivers / net / wireless / rt2x00 / rt2x00debug.c
CommitLineData
95ea3627 1/*
9c9a0d14 2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
95ea3627
ID		 3 <http://rt2x00.serialmonkey.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21/*
22 Module: rt2x00lib
23 Abstract: rt2x00 debugfs specific routines.
24 */
25
95ea3627
ID		 26#include <linux/debugfs.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
4d8dd66c 29#include <linux/poll.h>
d43c36dc 30#include <linux/sched.h>
95ea3627
ID		 31#include <linux/uaccess.h>
32
33#include "rt2x00.h"
34#include "rt2x00lib.h"
4d8dd66c 35#include "rt2x00dump.h"
95ea3627 36
68598d29 37#define MAX_LINE_LENGTH 64
95ea3627 38
2bb057d0
ID		 39struct rt2x00debug_crypto {
40 unsigned long success;
41 unsigned long icv_error;
42 unsigned long mic_error;
43 unsigned long key_error;
44};
45
95ea3627
ID		 46struct rt2x00debug_intf {
47 /*
48 * Pointer to driver structure where
49 * this debugfs entry belongs to.
50 */
51 struct rt2x00_dev *rt2x00dev;
52
53 /*
54 * Reference to the rt2x00debug structure
55 * which can be used to communicate with
56 * the registers.
57 */
58 const struct rt2x00debug *debug;
59
60 /*
61 * Debugfs entries for:
62 * - driver folder
91921a4e
ID		 63 * - driver file
64 * - chipset file
65 * - device flags file
66 * - register folder
67 * - csr offset/value files
68 * - eeprom offset/value files
69 * - bbp offset/value files
70 * - rf offset/value files
68598d29 71 * - queue folder
4d8dd66c 72 * - frame dump file
68598d29 73 * - queue stats file
2bb057d0 74 * - crypto stats file
95ea3627
ID		 75 */
76 struct dentry *driver_folder;
77 struct dentry *driver_entry;
78 struct dentry *chipset_entry;
643b2521 79 struct dentry *dev_flags;
91921a4e 80 struct dentry *register_folder;
95ea3627
ID		 81 struct dentry *csr_off_entry;
82 struct dentry *csr_val_entry;
83 struct dentry *eeprom_off_entry;
84 struct dentry *eeprom_val_entry;
85 struct dentry *bbp_off_entry;
86 struct dentry *bbp_val_entry;
87 struct dentry *rf_off_entry;
88 struct dentry *rf_val_entry;
68598d29
ID		 89 struct dentry *queue_folder;
90 struct dentry *queue_frame_dump_entry;
91 struct dentry *queue_stats_entry;
2bb057d0 92 struct dentry *crypto_stats_entry;
4d8dd66c
ID		 93
94 /*
95 * The frame dump file only allows a single reader,
96 * so we need to store the current state here.
97 */
98 unsigned long frame_dump_flags;
99#define FRAME_DUMP_FILE_OPEN 1
100
101 /*
102 * We queue each frame before dumping it to the user,
103 * per read command we will pass a single skb structure
104 * so we should be prepared to queue multiple sk buffers
105 * before sending it to userspace.
106 */
107 struct sk_buff_head frame_dump_skbqueue;
108 wait_queue_head_t frame_dump_waitqueue;
95ea3627 109
2bb057d0
ID		 110 /*
111 * HW crypto statistics.
112 * All statistics are stored seperately per cipher type.
113 */
114 struct rt2x00debug_crypto crypto_stats[CIPHER_MAX];
115
95ea3627
ID		 116 /*
117 * Driver and chipset files will use a data buffer
118 * that has been created in advance. This will simplify
119 * the code since we can use the debugfs functions.
120 */
121 struct debugfs_blob_wrapper driver_blob;
122 struct debugfs_blob_wrapper chipset_blob;
123
124 /*
125 * Requested offset for each register type.
126 */
127 unsigned int offset_csr;
128 unsigned int offset_eeprom;
129 unsigned int offset_bbp;
130 unsigned int offset_rf;
131};
132
2bb057d0 133void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
84e3196f 134 struct rxdone_entry_desc *rxdesc)
2bb057d0
ID		 135{
136 struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
84e3196f
ID		 137 enum cipher cipher = rxdesc->cipher;
138 enum rx_crypto status = rxdesc->cipher_status;
2bb057d0
ID		 139
140 if (cipher == CIPHER_TKIP_NO_MIC)
141 cipher = CIPHER_TKIP;
a6c67339 142 if (cipher == CIPHER_NONE || cipher >= CIPHER_MAX)
2bb057d0
ID		 143 return;
144
145 /* Remove CIPHER_NONE index */
146 cipher--;
147
148 intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS);
149 intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV);
150 intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC);
151 intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY);
152}
153
4d8dd66c 154void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
5a6e5999 155 enum rt2x00_dump_type type, struct sk_buff *skb)
4d8dd66c
ID		 156{
157 struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
878f7045 158 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
4d8dd66c
ID		 159 struct sk_buff *skbcopy;
160 struct rt2x00dump_hdr *dump_hdr;
161 struct timeval timestamp;
4d8dd66c
ID		 162
163 do_gettimeofday(&timestamp);
4d8dd66c
ID		 164
165 if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))
166 return;
167
168 if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) {
169 DEBUG(rt2x00dev, "txrx dump queue length exceeded.\n");
170 return;
171 }
172
878f7045 173 skbcopy = alloc_skb(sizeof(*dump_hdr) + skbdesc->desc_len + skb->len,
4d8dd66c
ID		 174 GFP_ATOMIC);
175 if (!skbcopy) {
176 DEBUG(rt2x00dev, "Failed to copy skb for dump.\n");
177 return;
178 }
179
180 dump_hdr = (struct rt2x00dump_hdr *)skb_put(skbcopy, sizeof(*dump_hdr));
181 dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION);
182 dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr));
878f7045 183 dump_hdr->desc_length = cpu_to_le32(skbdesc->desc_len);
d56d453a 184 dump_hdr->data_length = cpu_to_le32(skb->len);
4d8dd66c
ID		 185 dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt);
186 dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf);
49e721ec 187 dump_hdr->chip_rev = cpu_to_le16(rt2x00dev->chip.rev);
5a6e5999 188 dump_hdr->type = cpu_to_le16(type);
878f7045
GW		 189 dump_hdr->queue_index = skbdesc->entry->queue->qid;
190 dump_hdr->entry_index = skbdesc->entry->entry_idx;
4d8dd66c
ID		 191 dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec);
192 dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec);
193
878f7045
GW		 194 memcpy(skb_put(skbcopy, skbdesc->desc_len), skbdesc->desc,
195 skbdesc->desc_len);
d56d453a 196 memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len);
4d8dd66c
ID		 197
198 skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy);
199 wake_up_interruptible(&intf->frame_dump_waitqueue);
200
201 /*
202 * Verify that the file has not been closed while we were working.
203 */
204 if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))
205 skb_queue_purge(&intf->frame_dump_skbqueue);
206}
207
95ea3627
ID		 208static int rt2x00debug_file_open(struct inode *inode, struct file *file)
209{
210 struct rt2x00debug_intf *intf = inode->i_private;
211
212 file->private_data = inode->i_private;
213
214 if (!try_module_get(intf->debug->owner))
215 return -EBUSY;
216
217 return 0;
218}
219
220static int rt2x00debug_file_release(struct inode *inode, struct file *file)
221{
222 struct rt2x00debug_intf *intf = file->private_data;
223
224 module_put(intf->debug->owner);
225
226 return 0;
227}
228
181d6902 229static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file)
4d8dd66c
ID		 230{
231 struct rt2x00debug_intf *intf = inode->i_private;
232 int retval;
233
234 retval = rt2x00debug_file_open(inode, file);
235 if (retval)
236 return retval;
237
238 if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) {
239 rt2x00debug_file_release(inode, file);
240 return -EBUSY;
241 }
242
243 return 0;
244}
245
181d6902 246static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file)
4d8dd66c
ID		 247{
248 struct rt2x00debug_intf *intf = inode->i_private;
249
250 skb_queue_purge(&intf->frame_dump_skbqueue);
251
252 clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags);
253
254 return rt2x00debug_file_release(inode, file);
255}
256
181d6902
ID		 257static ssize_t rt2x00debug_read_queue_dump(struct file *file,
258 char __user *buf,
259 size_t length,
260 loff_t *offset)
4d8dd66c
ID		 261{
262 struct rt2x00debug_intf *intf = file->private_data;
263 struct sk_buff *skb;
264 size_t status;
265 int retval;
266
267 if (file->f_flags & O_NONBLOCK)
268 return -EAGAIN;
269
270 retval =
271 wait_event_interruptible(intf->frame_dump_waitqueue,
272 (skb =
273 skb_dequeue(&intf->frame_dump_skbqueue)));
274 if (retval)
275 return retval;
276
277 status = min((size_t)skb->len, length);
278 if (copy_to_user(buf, skb->data, status)) {
279 status = -EFAULT;
280 goto exit;
281 }
282
283 *offset += status;
284
285exit:
286 kfree_skb(skb);
287
288 return status;
289}
290
181d6902 291static unsigned int rt2x00debug_poll_queue_dump(struct file *file,
55887511 292 poll_table *wait)
4d8dd66c
ID		 293{
294 struct rt2x00debug_intf *intf = file->private_data;
295
296 poll_wait(file, &intf->frame_dump_waitqueue, wait);
297
298 if (!skb_queue_empty(&intf->frame_dump_skbqueue))
299 return POLLOUT | POLLWRNORM;
300
301 return 0;
302}
303
181d6902 304static const struct file_operations rt2x00debug_fop_queue_dump = {
4d8dd66c 305 .owner = THIS_MODULE,
181d6902
ID		 306 .read = rt2x00debug_read_queue_dump,
307 .poll = rt2x00debug_poll_queue_dump,
308 .open = rt2x00debug_open_queue_dump,
309 .release = rt2x00debug_release_queue_dump,
4d8dd66c
ID		 310};
311
68598d29
ID		 312static ssize_t rt2x00debug_read_queue_stats(struct file *file,
313 char __user *buf,
314 size_t length,
315 loff_t *offset)
316{
317 struct rt2x00debug_intf *intf = file->private_data;
318 struct data_queue *queue;
5f46c4d0 319 unsigned long irqflags;
68598d29
ID		 320 unsigned int lines = 1 + intf->rt2x00dev->data_queues;
321 size_t size;
322 char *data;
323 char *temp;
324
325 if (*offset)
326 return 0;
327
328 data = kzalloc(lines * MAX_LINE_LENGTH, GFP_KERNEL);
329 if (!data)
330 return -ENOMEM;
331
332 temp = data +
333 sprintf(data, "qid\tcount\tlimit\tlength\tindex\tdone\tcrypto\n");
334
335 queue_for_each(intf->rt2x00dev, queue) {
5f46c4d0 336 spin_lock_irqsave(&queue->lock, irqflags);
68598d29
ID		 337
338 temp += sprintf(temp, "%d\t%d\t%d\t%d\t%d\t%d\t%d\n", queue->qid,
339 queue->count, queue->limit, queue->length,
340 queue->index[Q_INDEX],
341 queue->index[Q_INDEX_DONE],
342 queue->index[Q_INDEX_CRYPTO]);
343
5f46c4d0 344 spin_unlock_irqrestore(&queue->lock, irqflags);
68598d29
ID		 345 }
346
347 size = strlen(data);
348 size = min(size, length);
349
350 if (copy_to_user(buf, data, size)) {
351 kfree(data);
352 return -EFAULT;
353 }
354
355 kfree(data);
356
357 *offset += size;
358 return size;
359}
360
361static const struct file_operations rt2x00debug_fop_queue_stats = {
362 .owner = THIS_MODULE,
363 .read = rt2x00debug_read_queue_stats,
364 .open = rt2x00debug_file_open,
365 .release = rt2x00debug_file_release,
366};
367
2bb057d0
ID		 368#ifdef CONFIG_RT2X00_LIB_CRYPTO
369static ssize_t rt2x00debug_read_crypto_stats(struct file *file,
370 char __user *buf,
371 size_t length,
372 loff_t *offset)
373{
374 struct rt2x00debug_intf *intf = file->private_data;
375 char *name[] = { "WEP64", "WEP128", "TKIP", "AES" };
376 char *data;
377 char *temp;
378 size_t size;
379 unsigned int i;
380
381 if (*offset)
382 return 0;
383
55887511 384 data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL);
2bb057d0
ID		 385 if (!data)
386 return -ENOMEM;
387
388 temp = data;
389 temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n");
390
391 for (i = 0; i < CIPHER_MAX; i++) {
392 temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i],
393 intf->crypto_stats[i].success,
394 intf->crypto_stats[i].icv_error,
395 intf->crypto_stats[i].mic_error,
396 intf->crypto_stats[i].key_error);
397 }
398
399 size = strlen(data);
400 size = min(size, length);
401
402 if (copy_to_user(buf, data, size)) {
403 kfree(data);
404 return -EFAULT;
405 }
406
407 kfree(data);
408
409 *offset += size;
410 return size;
411}
412
413static const struct file_operations rt2x00debug_fop_crypto_stats = {
414 .owner = THIS_MODULE,
415 .read = rt2x00debug_read_crypto_stats,
416 .open = rt2x00debug_file_open,
417 .release = rt2x00debug_file_release,
418};
419#endif
420
95ea3627
ID		 421#define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \
422static ssize_t rt2x00debug_read_##__name(struct file *file, \
423 char __user *buf, \
424 size_t length, \
425 loff_t *offset) \
426{ \
91921a4e 427 struct rt2x00debug_intf *intf = file->private_data; \
95ea3627
ID		 428 const struct rt2x00debug *debug = intf->debug; \
429 char line[16]; \
430 size_t size; \
743b97ca 431 unsigned int index = intf->offset_##__name; \
95ea3627
ID		 432 __type value; \
433 \
434 if (*offset) \
435 return 0; \
436 \
743b97ca 437 if (index >= debug->__name.word_count) \
95ea3627
ID		 438 return -EINVAL; \
439 \
abd2fdb4
ID		 440 index += (debug->__name.word_base / \
441 debug->__name.word_size); \
442 \
743b97ca
ID		 443 if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \
444 index *= debug->__name.word_size; \
445 \
743b97ca 446 debug->__name.read(intf->rt2x00dev, index, &value); \
95ea3627
ID		 447 \
448 size = sprintf(line, __format, value); \
449 \
450 if (copy_to_user(buf, line, size)) \
451 return -EFAULT; \
452 \
453 *offset += size; \
454 return size; \
455}
456
457#define RT2X00DEBUGFS_OPS_WRITE(__name, __type) \
458static ssize_t rt2x00debug_write_##__name(struct file *file, \
459 const char __user *buf,\
460 size_t length, \
461 loff_t *offset) \
462{ \
91921a4e 463 struct rt2x00debug_intf *intf = file->private_data; \
95ea3627
ID		 464 const struct rt2x00debug *debug = intf->debug; \
465 char line[16]; \
466 size_t size; \
743b97ca 467 unsigned int index = intf->offset_##__name; \
95ea3627
ID		 468 __type value; \
469 \
470 if (*offset) \
471 return 0; \
472 \
743b97ca 473 if (index >= debug->__name.word_count) \
95ea3627
ID		 474 return -EINVAL; \
475 \
476 if (copy_from_user(line, buf, length)) \
477 return -EFAULT; \
478 \
479 size = strlen(line); \
480 value = simple_strtoul(line, NULL, 0); \
481 \
abd2fdb4
ID		 482 index += (debug->__name.word_base / \
483 debug->__name.word_size); \
484 \
743b97ca
ID		 485 if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \
486 index *= debug->__name.word_size; \
487 \
743b97ca 488 debug->__name.write(intf->rt2x00dev, index, value); \
95ea3627
ID		 489 \
490 *offset += size; \
491 return size; \
492}
493
494#define RT2X00DEBUGFS_OPS(__name, __format, __type) \
495RT2X00DEBUGFS_OPS_READ(__name, __format, __type); \
496RT2X00DEBUGFS_OPS_WRITE(__name, __type); \
497 \
498static const struct file_operations rt2x00debug_fop_##__name = {\
499 .owner = THIS_MODULE, \
500 .read = rt2x00debug_read_##__name, \
501 .write = rt2x00debug_write_##__name, \
502 .open = rt2x00debug_file_open, \
503 .release = rt2x00debug_file_release, \
504};
505
506RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32);
507RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16);
508RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8);
509RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32);
510
643b2521
ID		 511static ssize_t rt2x00debug_read_dev_flags(struct file *file,
512 char __user *buf,
513 size_t length,
514 loff_t *offset)
515{
516 struct rt2x00debug_intf *intf = file->private_data;
517 char line[16];
518 size_t size;
519
520 if (*offset)
521 return 0;
522
523 size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags);
524
525 if (copy_to_user(buf, line, size))
526 return -EFAULT;
527
528 *offset += size;
529 return size;
530}
531
532static const struct file_operations rt2x00debug_fop_dev_flags = {
533 .owner = THIS_MODULE,
534 .read = rt2x00debug_read_dev_flags,
535 .open = rt2x00debug_file_open,
536 .release = rt2x00debug_file_release,
537};
538
95ea3627
ID		 539static struct dentry *rt2x00debug_create_file_driver(const char *name,
540 struct rt2x00debug_intf
541 *intf,
542 struct debugfs_blob_wrapper
543 *blob)
544{
545 char *data;
546
68598d29 547 data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL);
95ea3627
ID		 548 if (!data)
549 return NULL;
550
551 blob->data = data;
860559fe
ID		 552 data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name);
553 data += sprintf(data, "version:\t%s\n", DRV_VERSION);
554 data += sprintf(data, "compiled:\t%s %s\n", __DATE__, __TIME__);
95ea3627
ID		 555 blob->size = strlen(blob->data);
556
d2b69071 557 return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
95ea3627
ID		 558}
559
560static struct dentry *rt2x00debug_create_file_chipset(const char *name,
561 struct rt2x00debug_intf
562 *intf,
563 struct
564 debugfs_blob_wrapper
565 *blob)
566{
567 const struct rt2x00debug *debug = intf->debug;
568 char *data;
569
68598d29 570 data = kzalloc(8 * MAX_LINE_LENGTH, GFP_KERNEL);
95ea3627
ID		 571 if (!data)
572 return NULL;
573
3e34c6dc 574 blob->data = data;
860559fe
ID		 575 data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt);
576 data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf);
49e721ec 577 data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev);
22c96c28 578 data += sprintf(data, "\n");
860559fe
ID		 579 data += sprintf(data, "register\tbase\twords\twordsize\n");
580 data += sprintf(data, "csr\t%d\t%d\t%d\n",
581 debug->csr.word_base,
582 debug->csr.word_count,
583 debug->csr.word_size);
584 data += sprintf(data, "eeprom\t%d\t%d\t%d\n",
585 debug->eeprom.word_base,
586 debug->eeprom.word_count,
587 debug->eeprom.word_size);
588 data += sprintf(data, "bbp\t%d\t%d\t%d\n",
589 debug->bbp.word_base,
590 debug->bbp.word_count,
591 debug->bbp.word_size);
592 data += sprintf(data, "rf\t%d\t%d\t%d\n",
593 debug->rf.word_base,
594 debug->rf.word_count,
595 debug->rf.word_size);
3e34c6dc 596 blob->size = strlen(blob->data);
95ea3627 597
d2b69071 598 return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
95ea3627
ID		 599}
600
601void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
602{
603 const struct rt2x00debug *debug = rt2x00dev->ops->debugfs;
604 struct rt2x00debug_intf *intf;
605
606 intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL);
607 if (!intf) {
608 ERROR(rt2x00dev, "Failed to allocate debug handler.\n");
609 return;
610 }
611
612 intf->debug = debug;
613 intf->rt2x00dev = rt2x00dev;
614 rt2x00dev->debugfs_intf = intf;
615
616 intf->driver_folder =
617 debugfs_create_dir(intf->rt2x00dev->ops->name,
618 rt2x00dev->hw->wiphy->debugfsdir);
cfa3fa40 619 if (IS_ERR(intf->driver_folder) || !intf->driver_folder)
95ea3627
ID		 620 goto exit;
621
622 intf->driver_entry =
623 rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob);
cfa3fa40 624 if (IS_ERR(intf->driver_entry) || !intf->driver_entry)
95ea3627
ID		 625 goto exit;
626
627 intf->chipset_entry =
628 rt2x00debug_create_file_chipset("chipset",
629 intf, &intf->chipset_blob);
cfa3fa40 630 if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry)
95ea3627
ID		 631 goto exit;
632
d2b69071 633 intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR,
643b2521
ID		 634 intf->driver_folder, intf,
635 &rt2x00debug_fop_dev_flags);
cfa3fa40 636 if (IS_ERR(intf->dev_flags) || !intf->dev_flags)
643b2521
ID		 637 goto exit;
638
91921a4e
ID		 639 intf->register_folder =
640 debugfs_create_dir("register", intf->driver_folder);
cfa3fa40 641 if (IS_ERR(intf->register_folder) || !intf->register_folder)
91921a4e
ID		 642 goto exit;
643
644#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \
95ea3627
ID		 645({ \
646 (__intf)->__name##_off_entry = \
647 debugfs_create_u32(__stringify(__name) "_offset", \
d2b69071 648 S_IRUSR | S_IWUSR, \
91921a4e 649 (__intf)->register_folder, \
95ea3627 650 &(__intf)->offset_##__name); \
cfa3fa40
Z		 651 if (IS_ERR((__intf)->__name##_off_entry) \
652 || !(__intf)->__name##_off_entry) \
95ea3627
ID		 653 goto exit; \
654 \
655 (__intf)->__name##_val_entry = \
656 debugfs_create_file(__stringify(__name) "_value", \
d2b69071 657 S_IRUSR | S_IWUSR, \
91921a4e 658 (__intf)->register_folder, \
95ea3627 659 (__intf), &rt2x00debug_fop_##__name);\
cfa3fa40
Z		 660 if (IS_ERR((__intf)->__name##_val_entry) \
661 || !(__intf)->__name##_val_entry) \
95ea3627
ID		 662 goto exit; \
663})
664
91921a4e
ID		 665 RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr);
666 RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom);
667 RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp);
668 RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf);
95ea3627 669
91921a4e 670#undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY
95ea3627 671
68598d29
ID		 672 intf->queue_folder =
673 debugfs_create_dir("queue", intf->driver_folder);
cfa3fa40 674 if (IS_ERR(intf->queue_folder) || !intf->queue_folder)
4d8dd66c
ID		 675 goto exit;
676
68598d29 677 intf->queue_frame_dump_entry =
d2b69071 678 debugfs_create_file("dump", S_IRUSR, intf->queue_folder,
181d6902 679 intf, &rt2x00debug_fop_queue_dump);
cfa3fa40
Z		 680 if (IS_ERR(intf->queue_frame_dump_entry)
681 || !intf->queue_frame_dump_entry)
4d8dd66c
ID		 682 goto exit;
683
684 skb_queue_head_init(&intf->frame_dump_skbqueue);
685 init_waitqueue_head(&intf->frame_dump_waitqueue);
686
68598d29 687 intf->queue_stats_entry =
d2b69071 688 debugfs_create_file("queue", S_IRUSR, intf->queue_folder,
68598d29
ID		 689 intf, &rt2x00debug_fop_queue_stats);
690
2bb057d0
ID		 691#ifdef CONFIG_RT2X00_LIB_CRYPTO
692 if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags))
693 intf->crypto_stats_entry =
694 debugfs_create_file("crypto", S_IRUGO, intf->queue_folder,
695 intf, &rt2x00debug_fop_crypto_stats);
696#endif
697
95ea3627
ID		 698 return;
699
700exit:
701 rt2x00debug_deregister(rt2x00dev);
702 ERROR(rt2x00dev, "Failed to register debug handler.\n");
703
704 return;
705}
706
707void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
708{
4d8dd66c 709 struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
95ea3627
ID		 710
711 if (unlikely(!intf))
712 return;
713
4d8dd66c
ID		 714 skb_queue_purge(&intf->frame_dump_skbqueue);
715
2bb057d0
ID		 716#ifdef CONFIG_RT2X00_LIB_CRYPTO
717 debugfs_remove(intf->crypto_stats_entry);
718#endif
68598d29
ID		 719 debugfs_remove(intf->queue_stats_entry);
720 debugfs_remove(intf->queue_frame_dump_entry);
721 debugfs_remove(intf->queue_folder);
95ea3627
ID		 722 debugfs_remove(intf->rf_val_entry);
723 debugfs_remove(intf->rf_off_entry);
724 debugfs_remove(intf->bbp_val_entry);
725 debugfs_remove(intf->bbp_off_entry);
726 debugfs_remove(intf->eeprom_val_entry);
727 debugfs_remove(intf->eeprom_off_entry);
728 debugfs_remove(intf->csr_val_entry);
729 debugfs_remove(intf->csr_off_entry);
91921a4e 730 debugfs_remove(intf->register_folder);
643b2521 731 debugfs_remove(intf->dev_flags);
95ea3627
ID		 732 debugfs_remove(intf->chipset_entry);
733 debugfs_remove(intf->driver_entry);
734 debugfs_remove(intf->driver_folder);
735 kfree(intf->chipset_blob.data);
736 kfree(intf->driver_blob.data);
737 kfree(intf);
738
739 rt2x00dev->debugfs_intf = NULL;
740}
Linux kernel - Deliverables
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