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Commit | Line | Data |
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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 |
39 | struct 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 |
46 | struct 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 | 133 | void 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 | 154 | void 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; | |
181d6902 | 158 | struct skb_frame_desc *desc = 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(×tamp); | |
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 | ||
d56d453a | 173 | skbcopy = alloc_skb(sizeof(*dump_hdr) + desc->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)); | |
183 | dump_hdr->desc_length = cpu_to_le32(desc->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); |
181d6902 | 189 | dump_hdr->queue_index = desc->entry->queue->qid; |
04267104 | 190 | dump_hdr->entry_index = desc->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 | ||
194 | memcpy(skb_put(skbcopy, desc->desc_len), desc->desc, desc->desc_len); | |
d56d453a | 195 | memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len); |
4d8dd66c ID |
196 | |
197 | skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy); | |
198 | wake_up_interruptible(&intf->frame_dump_waitqueue); | |
199 | ||
200 | /* | |
201 | * Verify that the file has not been closed while we were working. | |
202 | */ | |
203 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
204 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
205 | } | |
206 | ||
95ea3627 ID |
207 | static int rt2x00debug_file_open(struct inode *inode, struct file *file) |
208 | { | |
209 | struct rt2x00debug_intf *intf = inode->i_private; | |
210 | ||
211 | file->private_data = inode->i_private; | |
212 | ||
213 | if (!try_module_get(intf->debug->owner)) | |
214 | return -EBUSY; | |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
219 | static int rt2x00debug_file_release(struct inode *inode, struct file *file) | |
220 | { | |
221 | struct rt2x00debug_intf *intf = file->private_data; | |
222 | ||
223 | module_put(intf->debug->owner); | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
181d6902 | 228 | static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
229 | { |
230 | struct rt2x00debug_intf *intf = inode->i_private; | |
231 | int retval; | |
232 | ||
233 | retval = rt2x00debug_file_open(inode, file); | |
234 | if (retval) | |
235 | return retval; | |
236 | ||
237 | if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) { | |
238 | rt2x00debug_file_release(inode, file); | |
239 | return -EBUSY; | |
240 | } | |
241 | ||
242 | return 0; | |
243 | } | |
244 | ||
181d6902 | 245 | static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
246 | { |
247 | struct rt2x00debug_intf *intf = inode->i_private; | |
248 | ||
249 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
250 | ||
251 | clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags); | |
252 | ||
253 | return rt2x00debug_file_release(inode, file); | |
254 | } | |
255 | ||
181d6902 ID |
256 | static ssize_t rt2x00debug_read_queue_dump(struct file *file, |
257 | char __user *buf, | |
258 | size_t length, | |
259 | loff_t *offset) | |
4d8dd66c ID |
260 | { |
261 | struct rt2x00debug_intf *intf = file->private_data; | |
262 | struct sk_buff *skb; | |
263 | size_t status; | |
264 | int retval; | |
265 | ||
266 | if (file->f_flags & O_NONBLOCK) | |
267 | return -EAGAIN; | |
268 | ||
269 | retval = | |
270 | wait_event_interruptible(intf->frame_dump_waitqueue, | |
271 | (skb = | |
272 | skb_dequeue(&intf->frame_dump_skbqueue))); | |
273 | if (retval) | |
274 | return retval; | |
275 | ||
276 | status = min((size_t)skb->len, length); | |
277 | if (copy_to_user(buf, skb->data, status)) { | |
278 | status = -EFAULT; | |
279 | goto exit; | |
280 | } | |
281 | ||
282 | *offset += status; | |
283 | ||
284 | exit: | |
285 | kfree_skb(skb); | |
286 | ||
287 | return status; | |
288 | } | |
289 | ||
181d6902 | 290 | static unsigned int rt2x00debug_poll_queue_dump(struct file *file, |
55887511 | 291 | poll_table *wait) |
4d8dd66c ID |
292 | { |
293 | struct rt2x00debug_intf *intf = file->private_data; | |
294 | ||
295 | poll_wait(file, &intf->frame_dump_waitqueue, wait); | |
296 | ||
297 | if (!skb_queue_empty(&intf->frame_dump_skbqueue)) | |
298 | return POLLOUT | POLLWRNORM; | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
181d6902 | 303 | static const struct file_operations rt2x00debug_fop_queue_dump = { |
4d8dd66c | 304 | .owner = THIS_MODULE, |
181d6902 ID |
305 | .read = rt2x00debug_read_queue_dump, |
306 | .poll = rt2x00debug_poll_queue_dump, | |
307 | .open = rt2x00debug_open_queue_dump, | |
308 | .release = rt2x00debug_release_queue_dump, | |
4d8dd66c ID |
309 | }; |
310 | ||
68598d29 ID |
311 | static ssize_t rt2x00debug_read_queue_stats(struct file *file, |
312 | char __user *buf, | |
313 | size_t length, | |
314 | loff_t *offset) | |
315 | { | |
316 | struct rt2x00debug_intf *intf = file->private_data; | |
317 | struct data_queue *queue; | |
5f46c4d0 | 318 | unsigned long irqflags; |
68598d29 ID |
319 | unsigned int lines = 1 + intf->rt2x00dev->data_queues; |
320 | size_t size; | |
321 | char *data; | |
322 | char *temp; | |
323 | ||
324 | if (*offset) | |
325 | return 0; | |
326 | ||
327 | data = kzalloc(lines * MAX_LINE_LENGTH, GFP_KERNEL); | |
328 | if (!data) | |
329 | return -ENOMEM; | |
330 | ||
331 | temp = data + | |
332 | sprintf(data, "qid\tcount\tlimit\tlength\tindex\tdone\tcrypto\n"); | |
333 | ||
334 | queue_for_each(intf->rt2x00dev, queue) { | |
5f46c4d0 | 335 | spin_lock_irqsave(&queue->lock, irqflags); |
68598d29 ID |
336 | |
337 | temp += sprintf(temp, "%d\t%d\t%d\t%d\t%d\t%d\t%d\n", queue->qid, | |
338 | queue->count, queue->limit, queue->length, | |
339 | queue->index[Q_INDEX], | |
340 | queue->index[Q_INDEX_DONE], | |
341 | queue->index[Q_INDEX_CRYPTO]); | |
342 | ||
5f46c4d0 | 343 | spin_unlock_irqrestore(&queue->lock, irqflags); |
68598d29 ID |
344 | } |
345 | ||
346 | size = strlen(data); | |
347 | size = min(size, length); | |
348 | ||
349 | if (copy_to_user(buf, data, size)) { | |
350 | kfree(data); | |
351 | return -EFAULT; | |
352 | } | |
353 | ||
354 | kfree(data); | |
355 | ||
356 | *offset += size; | |
357 | return size; | |
358 | } | |
359 | ||
360 | static const struct file_operations rt2x00debug_fop_queue_stats = { | |
361 | .owner = THIS_MODULE, | |
362 | .read = rt2x00debug_read_queue_stats, | |
363 | .open = rt2x00debug_file_open, | |
364 | .release = rt2x00debug_file_release, | |
365 | }; | |
366 | ||
2bb057d0 ID |
367 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
368 | static ssize_t rt2x00debug_read_crypto_stats(struct file *file, | |
369 | char __user *buf, | |
370 | size_t length, | |
371 | loff_t *offset) | |
372 | { | |
373 | struct rt2x00debug_intf *intf = file->private_data; | |
374 | char *name[] = { "WEP64", "WEP128", "TKIP", "AES" }; | |
375 | char *data; | |
376 | char *temp; | |
377 | size_t size; | |
378 | unsigned int i; | |
379 | ||
380 | if (*offset) | |
381 | return 0; | |
382 | ||
55887511 | 383 | data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL); |
2bb057d0 ID |
384 | if (!data) |
385 | return -ENOMEM; | |
386 | ||
387 | temp = data; | |
388 | temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n"); | |
389 | ||
390 | for (i = 0; i < CIPHER_MAX; i++) { | |
391 | temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i], | |
392 | intf->crypto_stats[i].success, | |
393 | intf->crypto_stats[i].icv_error, | |
394 | intf->crypto_stats[i].mic_error, | |
395 | intf->crypto_stats[i].key_error); | |
396 | } | |
397 | ||
398 | size = strlen(data); | |
399 | size = min(size, length); | |
400 | ||
401 | if (copy_to_user(buf, data, size)) { | |
402 | kfree(data); | |
403 | return -EFAULT; | |
404 | } | |
405 | ||
406 | kfree(data); | |
407 | ||
408 | *offset += size; | |
409 | return size; | |
410 | } | |
411 | ||
412 | static const struct file_operations rt2x00debug_fop_crypto_stats = { | |
413 | .owner = THIS_MODULE, | |
414 | .read = rt2x00debug_read_crypto_stats, | |
415 | .open = rt2x00debug_file_open, | |
416 | .release = rt2x00debug_file_release, | |
417 | }; | |
418 | #endif | |
419 | ||
95ea3627 ID |
420 | #define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \ |
421 | static ssize_t rt2x00debug_read_##__name(struct file *file, \ | |
422 | char __user *buf, \ | |
423 | size_t length, \ | |
424 | loff_t *offset) \ | |
425 | { \ | |
91921a4e | 426 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
427 | const struct rt2x00debug *debug = intf->debug; \ |
428 | char line[16]; \ | |
429 | size_t size; \ | |
743b97ca | 430 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
431 | __type value; \ |
432 | \ | |
433 | if (*offset) \ | |
434 | return 0; \ | |
435 | \ | |
743b97ca | 436 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
437 | return -EINVAL; \ |
438 | \ | |
abd2fdb4 ID |
439 | index += (debug->__name.word_base / \ |
440 | debug->__name.word_size); \ | |
441 | \ | |
743b97ca ID |
442 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
443 | index *= debug->__name.word_size; \ | |
444 | \ | |
743b97ca | 445 | debug->__name.read(intf->rt2x00dev, index, &value); \ |
95ea3627 ID |
446 | \ |
447 | size = sprintf(line, __format, value); \ | |
448 | \ | |
449 | if (copy_to_user(buf, line, size)) \ | |
450 | return -EFAULT; \ | |
451 | \ | |
452 | *offset += size; \ | |
453 | return size; \ | |
454 | } | |
455 | ||
456 | #define RT2X00DEBUGFS_OPS_WRITE(__name, __type) \ | |
457 | static ssize_t rt2x00debug_write_##__name(struct file *file, \ | |
458 | const char __user *buf,\ | |
459 | size_t length, \ | |
460 | loff_t *offset) \ | |
461 | { \ | |
91921a4e | 462 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
463 | const struct rt2x00debug *debug = intf->debug; \ |
464 | char line[16]; \ | |
465 | size_t size; \ | |
743b97ca | 466 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
467 | __type value; \ |
468 | \ | |
469 | if (*offset) \ | |
470 | return 0; \ | |
471 | \ | |
743b97ca | 472 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
473 | return -EINVAL; \ |
474 | \ | |
475 | if (copy_from_user(line, buf, length)) \ | |
476 | return -EFAULT; \ | |
477 | \ | |
478 | size = strlen(line); \ | |
479 | value = simple_strtoul(line, NULL, 0); \ | |
480 | \ | |
abd2fdb4 ID |
481 | index += (debug->__name.word_base / \ |
482 | debug->__name.word_size); \ | |
483 | \ | |
743b97ca ID |
484 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
485 | index *= debug->__name.word_size; \ | |
486 | \ | |
743b97ca | 487 | debug->__name.write(intf->rt2x00dev, index, value); \ |
95ea3627 ID |
488 | \ |
489 | *offset += size; \ | |
490 | return size; \ | |
491 | } | |
492 | ||
493 | #define RT2X00DEBUGFS_OPS(__name, __format, __type) \ | |
494 | RT2X00DEBUGFS_OPS_READ(__name, __format, __type); \ | |
495 | RT2X00DEBUGFS_OPS_WRITE(__name, __type); \ | |
496 | \ | |
497 | static const struct file_operations rt2x00debug_fop_##__name = {\ | |
498 | .owner = THIS_MODULE, \ | |
499 | .read = rt2x00debug_read_##__name, \ | |
500 | .write = rt2x00debug_write_##__name, \ | |
501 | .open = rt2x00debug_file_open, \ | |
502 | .release = rt2x00debug_file_release, \ | |
503 | }; | |
504 | ||
505 | RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32); | |
506 | RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); | |
507 | RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8); | |
508 | RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32); | |
509 | ||
643b2521 ID |
510 | static ssize_t rt2x00debug_read_dev_flags(struct file *file, |
511 | char __user *buf, | |
512 | size_t length, | |
513 | loff_t *offset) | |
514 | { | |
515 | struct rt2x00debug_intf *intf = file->private_data; | |
516 | char line[16]; | |
517 | size_t size; | |
518 | ||
519 | if (*offset) | |
520 | return 0; | |
521 | ||
522 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags); | |
523 | ||
524 | if (copy_to_user(buf, line, size)) | |
525 | return -EFAULT; | |
526 | ||
527 | *offset += size; | |
528 | return size; | |
529 | } | |
530 | ||
531 | static const struct file_operations rt2x00debug_fop_dev_flags = { | |
532 | .owner = THIS_MODULE, | |
533 | .read = rt2x00debug_read_dev_flags, | |
534 | .open = rt2x00debug_file_open, | |
535 | .release = rt2x00debug_file_release, | |
536 | }; | |
537 | ||
95ea3627 ID |
538 | static struct dentry *rt2x00debug_create_file_driver(const char *name, |
539 | struct rt2x00debug_intf | |
540 | *intf, | |
541 | struct debugfs_blob_wrapper | |
542 | *blob) | |
543 | { | |
544 | char *data; | |
545 | ||
68598d29 | 546 | data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
547 | if (!data) |
548 | return NULL; | |
549 | ||
550 | blob->data = data; | |
860559fe ID |
551 | data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name); |
552 | data += sprintf(data, "version:\t%s\n", DRV_VERSION); | |
553 | data += sprintf(data, "compiled:\t%s %s\n", __DATE__, __TIME__); | |
95ea3627 ID |
554 | blob->size = strlen(blob->data); |
555 | ||
d2b69071 | 556 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
557 | } |
558 | ||
559 | static struct dentry *rt2x00debug_create_file_chipset(const char *name, | |
560 | struct rt2x00debug_intf | |
561 | *intf, | |
562 | struct | |
563 | debugfs_blob_wrapper | |
564 | *blob) | |
565 | { | |
566 | const struct rt2x00debug *debug = intf->debug; | |
567 | char *data; | |
568 | ||
68598d29 | 569 | data = kzalloc(8 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
570 | if (!data) |
571 | return NULL; | |
572 | ||
3e34c6dc | 573 | blob->data = data; |
860559fe ID |
574 | data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt); |
575 | data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf); | |
49e721ec | 576 | data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev); |
22c96c28 | 577 | data += sprintf(data, "\n"); |
860559fe ID |
578 | data += sprintf(data, "register\tbase\twords\twordsize\n"); |
579 | data += sprintf(data, "csr\t%d\t%d\t%d\n", | |
580 | debug->csr.word_base, | |
581 | debug->csr.word_count, | |
582 | debug->csr.word_size); | |
583 | data += sprintf(data, "eeprom\t%d\t%d\t%d\n", | |
584 | debug->eeprom.word_base, | |
585 | debug->eeprom.word_count, | |
586 | debug->eeprom.word_size); | |
587 | data += sprintf(data, "bbp\t%d\t%d\t%d\n", | |
588 | debug->bbp.word_base, | |
589 | debug->bbp.word_count, | |
590 | debug->bbp.word_size); | |
591 | data += sprintf(data, "rf\t%d\t%d\t%d\n", | |
592 | debug->rf.word_base, | |
593 | debug->rf.word_count, | |
594 | debug->rf.word_size); | |
3e34c6dc | 595 | blob->size = strlen(blob->data); |
95ea3627 | 596 | |
d2b69071 | 597 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
598 | } |
599 | ||
600 | void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) | |
601 | { | |
602 | const struct rt2x00debug *debug = rt2x00dev->ops->debugfs; | |
603 | struct rt2x00debug_intf *intf; | |
604 | ||
605 | intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL); | |
606 | if (!intf) { | |
607 | ERROR(rt2x00dev, "Failed to allocate debug handler.\n"); | |
608 | return; | |
609 | } | |
610 | ||
611 | intf->debug = debug; | |
612 | intf->rt2x00dev = rt2x00dev; | |
613 | rt2x00dev->debugfs_intf = intf; | |
614 | ||
615 | intf->driver_folder = | |
616 | debugfs_create_dir(intf->rt2x00dev->ops->name, | |
617 | rt2x00dev->hw->wiphy->debugfsdir); | |
cfa3fa40 | 618 | if (IS_ERR(intf->driver_folder) || !intf->driver_folder) |
95ea3627 ID |
619 | goto exit; |
620 | ||
621 | intf->driver_entry = | |
622 | rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob); | |
cfa3fa40 | 623 | if (IS_ERR(intf->driver_entry) || !intf->driver_entry) |
95ea3627 ID |
624 | goto exit; |
625 | ||
626 | intf->chipset_entry = | |
627 | rt2x00debug_create_file_chipset("chipset", | |
628 | intf, &intf->chipset_blob); | |
cfa3fa40 | 629 | if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry) |
95ea3627 ID |
630 | goto exit; |
631 | ||
d2b69071 | 632 | intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR, |
643b2521 ID |
633 | intf->driver_folder, intf, |
634 | &rt2x00debug_fop_dev_flags); | |
cfa3fa40 | 635 | if (IS_ERR(intf->dev_flags) || !intf->dev_flags) |
643b2521 ID |
636 | goto exit; |
637 | ||
91921a4e ID |
638 | intf->register_folder = |
639 | debugfs_create_dir("register", intf->driver_folder); | |
cfa3fa40 | 640 | if (IS_ERR(intf->register_folder) || !intf->register_folder) |
91921a4e ID |
641 | goto exit; |
642 | ||
643 | #define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ | |
95ea3627 ID |
644 | ({ \ |
645 | (__intf)->__name##_off_entry = \ | |
646 | debugfs_create_u32(__stringify(__name) "_offset", \ | |
d2b69071 | 647 | S_IRUSR | S_IWUSR, \ |
91921a4e | 648 | (__intf)->register_folder, \ |
95ea3627 | 649 | &(__intf)->offset_##__name); \ |
cfa3fa40 Z |
650 | if (IS_ERR((__intf)->__name##_off_entry) \ |
651 | || !(__intf)->__name##_off_entry) \ | |
95ea3627 ID |
652 | goto exit; \ |
653 | \ | |
654 | (__intf)->__name##_val_entry = \ | |
655 | debugfs_create_file(__stringify(__name) "_value", \ | |
d2b69071 | 656 | S_IRUSR | S_IWUSR, \ |
91921a4e | 657 | (__intf)->register_folder, \ |
95ea3627 | 658 | (__intf), &rt2x00debug_fop_##__name);\ |
cfa3fa40 Z |
659 | if (IS_ERR((__intf)->__name##_val_entry) \ |
660 | || !(__intf)->__name##_val_entry) \ | |
95ea3627 ID |
661 | goto exit; \ |
662 | }) | |
663 | ||
91921a4e ID |
664 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr); |
665 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom); | |
666 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp); | |
667 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf); | |
95ea3627 | 668 | |
91921a4e | 669 | #undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY |
95ea3627 | 670 | |
68598d29 ID |
671 | intf->queue_folder = |
672 | debugfs_create_dir("queue", intf->driver_folder); | |
cfa3fa40 | 673 | if (IS_ERR(intf->queue_folder) || !intf->queue_folder) |
4d8dd66c ID |
674 | goto exit; |
675 | ||
68598d29 | 676 | intf->queue_frame_dump_entry = |
d2b69071 | 677 | debugfs_create_file("dump", S_IRUSR, intf->queue_folder, |
181d6902 | 678 | intf, &rt2x00debug_fop_queue_dump); |
cfa3fa40 Z |
679 | if (IS_ERR(intf->queue_frame_dump_entry) |
680 | || !intf->queue_frame_dump_entry) | |
4d8dd66c ID |
681 | goto exit; |
682 | ||
683 | skb_queue_head_init(&intf->frame_dump_skbqueue); | |
684 | init_waitqueue_head(&intf->frame_dump_waitqueue); | |
685 | ||
68598d29 | 686 | intf->queue_stats_entry = |
d2b69071 | 687 | debugfs_create_file("queue", S_IRUSR, intf->queue_folder, |
68598d29 ID |
688 | intf, &rt2x00debug_fop_queue_stats); |
689 | ||
2bb057d0 ID |
690 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
691 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
692 | intf->crypto_stats_entry = | |
693 | debugfs_create_file("crypto", S_IRUGO, intf->queue_folder, | |
694 | intf, &rt2x00debug_fop_crypto_stats); | |
695 | #endif | |
696 | ||
95ea3627 ID |
697 | return; |
698 | ||
699 | exit: | |
700 | rt2x00debug_deregister(rt2x00dev); | |
701 | ERROR(rt2x00dev, "Failed to register debug handler.\n"); | |
702 | ||
703 | return; | |
704 | } | |
705 | ||
706 | void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) | |
707 | { | |
4d8dd66c | 708 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; |
95ea3627 ID |
709 | |
710 | if (unlikely(!intf)) | |
711 | return; | |
712 | ||
4d8dd66c ID |
713 | skb_queue_purge(&intf->frame_dump_skbqueue); |
714 | ||
2bb057d0 ID |
715 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
716 | debugfs_remove(intf->crypto_stats_entry); | |
717 | #endif | |
68598d29 ID |
718 | debugfs_remove(intf->queue_stats_entry); |
719 | debugfs_remove(intf->queue_frame_dump_entry); | |
720 | debugfs_remove(intf->queue_folder); | |
95ea3627 ID |
721 | debugfs_remove(intf->rf_val_entry); |
722 | debugfs_remove(intf->rf_off_entry); | |
723 | debugfs_remove(intf->bbp_val_entry); | |
724 | debugfs_remove(intf->bbp_off_entry); | |
725 | debugfs_remove(intf->eeprom_val_entry); | |
726 | debugfs_remove(intf->eeprom_off_entry); | |
727 | debugfs_remove(intf->csr_val_entry); | |
728 | debugfs_remove(intf->csr_off_entry); | |
91921a4e | 729 | debugfs_remove(intf->register_folder); |
643b2521 | 730 | debugfs_remove(intf->dev_flags); |
95ea3627 ID |
731 | debugfs_remove(intf->chipset_entry); |
732 | debugfs_remove(intf->driver_entry); | |
733 | debugfs_remove(intf->driver_folder); | |
734 | kfree(intf->chipset_blob.data); | |
735 | kfree(intf->driver_blob.data); | |
736 | kfree(intf); | |
737 | ||
738 | rt2x00dev->debugfs_intf = NULL; | |
739 | } |