Commit | Line | Data |
---|---|---|
95ea3627 | 1 | /* |
4e54c711 | 2 | Copyright (C) 2004 - 2009 rt2x00 SourceForge Project |
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> |
95ea3627 ID |
30 | #include <linux/uaccess.h> |
31 | ||
32 | #include "rt2x00.h" | |
33 | #include "rt2x00lib.h" | |
4d8dd66c | 34 | #include "rt2x00dump.h" |
95ea3627 | 35 | |
68598d29 | 36 | #define MAX_LINE_LENGTH 64 |
95ea3627 | 37 | |
2bb057d0 ID |
38 | struct rt2x00debug_crypto { |
39 | unsigned long success; | |
40 | unsigned long icv_error; | |
41 | unsigned long mic_error; | |
42 | unsigned long key_error; | |
43 | }; | |
44 | ||
95ea3627 ID |
45 | struct rt2x00debug_intf { |
46 | /* | |
47 | * Pointer to driver structure where | |
48 | * this debugfs entry belongs to. | |
49 | */ | |
50 | struct rt2x00_dev *rt2x00dev; | |
51 | ||
52 | /* | |
53 | * Reference to the rt2x00debug structure | |
54 | * which can be used to communicate with | |
55 | * the registers. | |
56 | */ | |
57 | const struct rt2x00debug *debug; | |
58 | ||
59 | /* | |
60 | * Debugfs entries for: | |
61 | * - driver folder | |
91921a4e ID |
62 | * - driver file |
63 | * - chipset file | |
64 | * - device flags file | |
65 | * - register folder | |
66 | * - csr offset/value files | |
67 | * - eeprom offset/value files | |
68 | * - bbp offset/value files | |
69 | * - rf offset/value files | |
68598d29 | 70 | * - queue folder |
4d8dd66c | 71 | * - frame dump file |
68598d29 | 72 | * - queue stats file |
2bb057d0 | 73 | * - crypto stats file |
95ea3627 ID |
74 | */ |
75 | struct dentry *driver_folder; | |
76 | struct dentry *driver_entry; | |
77 | struct dentry *chipset_entry; | |
643b2521 | 78 | struct dentry *dev_flags; |
91921a4e | 79 | struct dentry *register_folder; |
95ea3627 ID |
80 | struct dentry *csr_off_entry; |
81 | struct dentry *csr_val_entry; | |
82 | struct dentry *eeprom_off_entry; | |
83 | struct dentry *eeprom_val_entry; | |
84 | struct dentry *bbp_off_entry; | |
85 | struct dentry *bbp_val_entry; | |
86 | struct dentry *rf_off_entry; | |
87 | struct dentry *rf_val_entry; | |
68598d29 ID |
88 | struct dentry *queue_folder; |
89 | struct dentry *queue_frame_dump_entry; | |
90 | struct dentry *queue_stats_entry; | |
2bb057d0 | 91 | struct dentry *crypto_stats_entry; |
4d8dd66c ID |
92 | |
93 | /* | |
94 | * The frame dump file only allows a single reader, | |
95 | * so we need to store the current state here. | |
96 | */ | |
97 | unsigned long frame_dump_flags; | |
98 | #define FRAME_DUMP_FILE_OPEN 1 | |
99 | ||
100 | /* | |
101 | * We queue each frame before dumping it to the user, | |
102 | * per read command we will pass a single skb structure | |
103 | * so we should be prepared to queue multiple sk buffers | |
104 | * before sending it to userspace. | |
105 | */ | |
106 | struct sk_buff_head frame_dump_skbqueue; | |
107 | wait_queue_head_t frame_dump_waitqueue; | |
95ea3627 | 108 | |
2bb057d0 ID |
109 | /* |
110 | * HW crypto statistics. | |
111 | * All statistics are stored seperately per cipher type. | |
112 | */ | |
113 | struct rt2x00debug_crypto crypto_stats[CIPHER_MAX]; | |
114 | ||
95ea3627 ID |
115 | /* |
116 | * Driver and chipset files will use a data buffer | |
117 | * that has been created in advance. This will simplify | |
118 | * the code since we can use the debugfs functions. | |
119 | */ | |
120 | struct debugfs_blob_wrapper driver_blob; | |
121 | struct debugfs_blob_wrapper chipset_blob; | |
122 | ||
123 | /* | |
124 | * Requested offset for each register type. | |
125 | */ | |
126 | unsigned int offset_csr; | |
127 | unsigned int offset_eeprom; | |
128 | unsigned int offset_bbp; | |
129 | unsigned int offset_rf; | |
130 | }; | |
131 | ||
2bb057d0 | 132 | void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, |
84e3196f | 133 | struct rxdone_entry_desc *rxdesc) |
2bb057d0 ID |
134 | { |
135 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
84e3196f ID |
136 | enum cipher cipher = rxdesc->cipher; |
137 | enum rx_crypto status = rxdesc->cipher_status; | |
2bb057d0 ID |
138 | |
139 | if (cipher == CIPHER_TKIP_NO_MIC) | |
140 | cipher = CIPHER_TKIP; | |
a6c67339 | 141 | if (cipher == CIPHER_NONE || cipher >= CIPHER_MAX) |
2bb057d0 ID |
142 | return; |
143 | ||
144 | /* Remove CIPHER_NONE index */ | |
145 | cipher--; | |
146 | ||
147 | intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS); | |
148 | intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV); | |
149 | intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC); | |
150 | intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY); | |
151 | } | |
152 | ||
4d8dd66c | 153 | void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, |
5a6e5999 | 154 | enum rt2x00_dump_type type, struct sk_buff *skb) |
4d8dd66c ID |
155 | { |
156 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
181d6902 | 157 | struct skb_frame_desc *desc = get_skb_frame_desc(skb); |
4d8dd66c ID |
158 | struct sk_buff *skbcopy; |
159 | struct rt2x00dump_hdr *dump_hdr; | |
160 | struct timeval timestamp; | |
4d8dd66c ID |
161 | |
162 | do_gettimeofday(×tamp); | |
4d8dd66c ID |
163 | |
164 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
165 | return; | |
166 | ||
167 | if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) { | |
168 | DEBUG(rt2x00dev, "txrx dump queue length exceeded.\n"); | |
169 | return; | |
170 | } | |
171 | ||
d56d453a | 172 | skbcopy = alloc_skb(sizeof(*dump_hdr) + desc->desc_len + skb->len, |
4d8dd66c ID |
173 | GFP_ATOMIC); |
174 | if (!skbcopy) { | |
175 | DEBUG(rt2x00dev, "Failed to copy skb for dump.\n"); | |
176 | return; | |
177 | } | |
178 | ||
179 | dump_hdr = (struct rt2x00dump_hdr *)skb_put(skbcopy, sizeof(*dump_hdr)); | |
180 | dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION); | |
181 | dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr)); | |
182 | dump_hdr->desc_length = cpu_to_le32(desc->desc_len); | |
d56d453a | 183 | dump_hdr->data_length = cpu_to_le32(skb->len); |
4d8dd66c ID |
184 | dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt); |
185 | dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf); | |
186 | dump_hdr->chip_rev = cpu_to_le32(rt2x00dev->chip.rev); | |
5a6e5999 | 187 | dump_hdr->type = cpu_to_le16(type); |
181d6902 | 188 | dump_hdr->queue_index = desc->entry->queue->qid; |
04267104 | 189 | dump_hdr->entry_index = desc->entry->entry_idx; |
4d8dd66c ID |
190 | dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec); |
191 | dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec); | |
192 | ||
193 | memcpy(skb_put(skbcopy, desc->desc_len), desc->desc, desc->desc_len); | |
d56d453a | 194 | memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len); |
4d8dd66c ID |
195 | |
196 | skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy); | |
197 | wake_up_interruptible(&intf->frame_dump_waitqueue); | |
198 | ||
199 | /* | |
200 | * Verify that the file has not been closed while we were working. | |
201 | */ | |
202 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
203 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
204 | } | |
205 | ||
95ea3627 ID |
206 | static int rt2x00debug_file_open(struct inode *inode, struct file *file) |
207 | { | |
208 | struct rt2x00debug_intf *intf = inode->i_private; | |
209 | ||
210 | file->private_data = inode->i_private; | |
211 | ||
212 | if (!try_module_get(intf->debug->owner)) | |
213 | return -EBUSY; | |
214 | ||
215 | return 0; | |
216 | } | |
217 | ||
218 | static int rt2x00debug_file_release(struct inode *inode, struct file *file) | |
219 | { | |
220 | struct rt2x00debug_intf *intf = file->private_data; | |
221 | ||
222 | module_put(intf->debug->owner); | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
181d6902 | 227 | static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
228 | { |
229 | struct rt2x00debug_intf *intf = inode->i_private; | |
230 | int retval; | |
231 | ||
232 | retval = rt2x00debug_file_open(inode, file); | |
233 | if (retval) | |
234 | return retval; | |
235 | ||
236 | if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) { | |
237 | rt2x00debug_file_release(inode, file); | |
238 | return -EBUSY; | |
239 | } | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
181d6902 | 244 | static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
245 | { |
246 | struct rt2x00debug_intf *intf = inode->i_private; | |
247 | ||
248 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
249 | ||
250 | clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags); | |
251 | ||
252 | return rt2x00debug_file_release(inode, file); | |
253 | } | |
254 | ||
181d6902 ID |
255 | static ssize_t rt2x00debug_read_queue_dump(struct file *file, |
256 | char __user *buf, | |
257 | size_t length, | |
258 | loff_t *offset) | |
4d8dd66c ID |
259 | { |
260 | struct rt2x00debug_intf *intf = file->private_data; | |
261 | struct sk_buff *skb; | |
262 | size_t status; | |
263 | int retval; | |
264 | ||
265 | if (file->f_flags & O_NONBLOCK) | |
266 | return -EAGAIN; | |
267 | ||
268 | retval = | |
269 | wait_event_interruptible(intf->frame_dump_waitqueue, | |
270 | (skb = | |
271 | skb_dequeue(&intf->frame_dump_skbqueue))); | |
272 | if (retval) | |
273 | return retval; | |
274 | ||
275 | status = min((size_t)skb->len, length); | |
276 | if (copy_to_user(buf, skb->data, status)) { | |
277 | status = -EFAULT; | |
278 | goto exit; | |
279 | } | |
280 | ||
281 | *offset += status; | |
282 | ||
283 | exit: | |
284 | kfree_skb(skb); | |
285 | ||
286 | return status; | |
287 | } | |
288 | ||
181d6902 | 289 | static unsigned int rt2x00debug_poll_queue_dump(struct file *file, |
55887511 | 290 | poll_table *wait) |
4d8dd66c ID |
291 | { |
292 | struct rt2x00debug_intf *intf = file->private_data; | |
293 | ||
294 | poll_wait(file, &intf->frame_dump_waitqueue, wait); | |
295 | ||
296 | if (!skb_queue_empty(&intf->frame_dump_skbqueue)) | |
297 | return POLLOUT | POLLWRNORM; | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
181d6902 | 302 | static const struct file_operations rt2x00debug_fop_queue_dump = { |
4d8dd66c | 303 | .owner = THIS_MODULE, |
181d6902 ID |
304 | .read = rt2x00debug_read_queue_dump, |
305 | .poll = rt2x00debug_poll_queue_dump, | |
306 | .open = rt2x00debug_open_queue_dump, | |
307 | .release = rt2x00debug_release_queue_dump, | |
4d8dd66c ID |
308 | }; |
309 | ||
68598d29 ID |
310 | static ssize_t rt2x00debug_read_queue_stats(struct file *file, |
311 | char __user *buf, | |
312 | size_t length, | |
313 | loff_t *offset) | |
314 | { | |
315 | struct rt2x00debug_intf *intf = file->private_data; | |
316 | struct data_queue *queue; | |
5f46c4d0 | 317 | unsigned long irqflags; |
68598d29 ID |
318 | unsigned int lines = 1 + intf->rt2x00dev->data_queues; |
319 | size_t size; | |
320 | char *data; | |
321 | char *temp; | |
322 | ||
323 | if (*offset) | |
324 | return 0; | |
325 | ||
326 | data = kzalloc(lines * MAX_LINE_LENGTH, GFP_KERNEL); | |
327 | if (!data) | |
328 | return -ENOMEM; | |
329 | ||
330 | temp = data + | |
331 | sprintf(data, "qid\tcount\tlimit\tlength\tindex\tdone\tcrypto\n"); | |
332 | ||
333 | queue_for_each(intf->rt2x00dev, queue) { | |
5f46c4d0 | 334 | spin_lock_irqsave(&queue->lock, irqflags); |
68598d29 ID |
335 | |
336 | temp += sprintf(temp, "%d\t%d\t%d\t%d\t%d\t%d\t%d\n", queue->qid, | |
337 | queue->count, queue->limit, queue->length, | |
338 | queue->index[Q_INDEX], | |
339 | queue->index[Q_INDEX_DONE], | |
340 | queue->index[Q_INDEX_CRYPTO]); | |
341 | ||
5f46c4d0 | 342 | spin_unlock_irqrestore(&queue->lock, irqflags); |
68598d29 ID |
343 | } |
344 | ||
345 | size = strlen(data); | |
346 | size = min(size, length); | |
347 | ||
348 | if (copy_to_user(buf, data, size)) { | |
349 | kfree(data); | |
350 | return -EFAULT; | |
351 | } | |
352 | ||
353 | kfree(data); | |
354 | ||
355 | *offset += size; | |
356 | return size; | |
357 | } | |
358 | ||
359 | static const struct file_operations rt2x00debug_fop_queue_stats = { | |
360 | .owner = THIS_MODULE, | |
361 | .read = rt2x00debug_read_queue_stats, | |
362 | .open = rt2x00debug_file_open, | |
363 | .release = rt2x00debug_file_release, | |
364 | }; | |
365 | ||
2bb057d0 ID |
366 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
367 | static ssize_t rt2x00debug_read_crypto_stats(struct file *file, | |
368 | char __user *buf, | |
369 | size_t length, | |
370 | loff_t *offset) | |
371 | { | |
372 | struct rt2x00debug_intf *intf = file->private_data; | |
373 | char *name[] = { "WEP64", "WEP128", "TKIP", "AES" }; | |
374 | char *data; | |
375 | char *temp; | |
376 | size_t size; | |
377 | unsigned int i; | |
378 | ||
379 | if (*offset) | |
380 | return 0; | |
381 | ||
55887511 | 382 | data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL); |
2bb057d0 ID |
383 | if (!data) |
384 | return -ENOMEM; | |
385 | ||
386 | temp = data; | |
387 | temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n"); | |
388 | ||
389 | for (i = 0; i < CIPHER_MAX; i++) { | |
390 | temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i], | |
391 | intf->crypto_stats[i].success, | |
392 | intf->crypto_stats[i].icv_error, | |
393 | intf->crypto_stats[i].mic_error, | |
394 | intf->crypto_stats[i].key_error); | |
395 | } | |
396 | ||
397 | size = strlen(data); | |
398 | size = min(size, length); | |
399 | ||
400 | if (copy_to_user(buf, data, size)) { | |
401 | kfree(data); | |
402 | return -EFAULT; | |
403 | } | |
404 | ||
405 | kfree(data); | |
406 | ||
407 | *offset += size; | |
408 | return size; | |
409 | } | |
410 | ||
411 | static const struct file_operations rt2x00debug_fop_crypto_stats = { | |
412 | .owner = THIS_MODULE, | |
413 | .read = rt2x00debug_read_crypto_stats, | |
414 | .open = rt2x00debug_file_open, | |
415 | .release = rt2x00debug_file_release, | |
416 | }; | |
417 | #endif | |
418 | ||
95ea3627 ID |
419 | #define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \ |
420 | static ssize_t rt2x00debug_read_##__name(struct file *file, \ | |
421 | char __user *buf, \ | |
422 | size_t length, \ | |
423 | loff_t *offset) \ | |
424 | { \ | |
91921a4e | 425 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
426 | const struct rt2x00debug *debug = intf->debug; \ |
427 | char line[16]; \ | |
428 | size_t size; \ | |
743b97ca | 429 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
430 | __type value; \ |
431 | \ | |
432 | if (*offset) \ | |
433 | return 0; \ | |
434 | \ | |
743b97ca | 435 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
436 | return -EINVAL; \ |
437 | \ | |
abd2fdb4 ID |
438 | index += (debug->__name.word_base / \ |
439 | debug->__name.word_size); \ | |
440 | \ | |
743b97ca ID |
441 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
442 | index *= debug->__name.word_size; \ | |
443 | \ | |
743b97ca | 444 | debug->__name.read(intf->rt2x00dev, index, &value); \ |
95ea3627 ID |
445 | \ |
446 | size = sprintf(line, __format, value); \ | |
447 | \ | |
448 | if (copy_to_user(buf, line, size)) \ | |
449 | return -EFAULT; \ | |
450 | \ | |
451 | *offset += size; \ | |
452 | return size; \ | |
453 | } | |
454 | ||
455 | #define RT2X00DEBUGFS_OPS_WRITE(__name, __type) \ | |
456 | static ssize_t rt2x00debug_write_##__name(struct file *file, \ | |
457 | const char __user *buf,\ | |
458 | size_t length, \ | |
459 | loff_t *offset) \ | |
460 | { \ | |
91921a4e | 461 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
462 | const struct rt2x00debug *debug = intf->debug; \ |
463 | char line[16]; \ | |
464 | size_t size; \ | |
743b97ca | 465 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
466 | __type value; \ |
467 | \ | |
468 | if (*offset) \ | |
469 | return 0; \ | |
470 | \ | |
743b97ca | 471 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
472 | return -EINVAL; \ |
473 | \ | |
474 | if (copy_from_user(line, buf, length)) \ | |
475 | return -EFAULT; \ | |
476 | \ | |
477 | size = strlen(line); \ | |
478 | value = simple_strtoul(line, NULL, 0); \ | |
479 | \ | |
abd2fdb4 ID |
480 | index += (debug->__name.word_base / \ |
481 | debug->__name.word_size); \ | |
482 | \ | |
743b97ca ID |
483 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
484 | index *= debug->__name.word_size; \ | |
485 | \ | |
743b97ca | 486 | debug->__name.write(intf->rt2x00dev, index, value); \ |
95ea3627 ID |
487 | \ |
488 | *offset += size; \ | |
489 | return size; \ | |
490 | } | |
491 | ||
492 | #define RT2X00DEBUGFS_OPS(__name, __format, __type) \ | |
493 | RT2X00DEBUGFS_OPS_READ(__name, __format, __type); \ | |
494 | RT2X00DEBUGFS_OPS_WRITE(__name, __type); \ | |
495 | \ | |
496 | static const struct file_operations rt2x00debug_fop_##__name = {\ | |
497 | .owner = THIS_MODULE, \ | |
498 | .read = rt2x00debug_read_##__name, \ | |
499 | .write = rt2x00debug_write_##__name, \ | |
500 | .open = rt2x00debug_file_open, \ | |
501 | .release = rt2x00debug_file_release, \ | |
502 | }; | |
503 | ||
504 | RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32); | |
505 | RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); | |
506 | RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8); | |
507 | RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32); | |
508 | ||
643b2521 ID |
509 | static ssize_t rt2x00debug_read_dev_flags(struct file *file, |
510 | char __user *buf, | |
511 | size_t length, | |
512 | loff_t *offset) | |
513 | { | |
514 | struct rt2x00debug_intf *intf = file->private_data; | |
515 | char line[16]; | |
516 | size_t size; | |
517 | ||
518 | if (*offset) | |
519 | return 0; | |
520 | ||
521 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags); | |
522 | ||
523 | if (copy_to_user(buf, line, size)) | |
524 | return -EFAULT; | |
525 | ||
526 | *offset += size; | |
527 | return size; | |
528 | } | |
529 | ||
530 | static const struct file_operations rt2x00debug_fop_dev_flags = { | |
531 | .owner = THIS_MODULE, | |
532 | .read = rt2x00debug_read_dev_flags, | |
533 | .open = rt2x00debug_file_open, | |
534 | .release = rt2x00debug_file_release, | |
535 | }; | |
536 | ||
95ea3627 ID |
537 | static struct dentry *rt2x00debug_create_file_driver(const char *name, |
538 | struct rt2x00debug_intf | |
539 | *intf, | |
540 | struct debugfs_blob_wrapper | |
541 | *blob) | |
542 | { | |
543 | char *data; | |
544 | ||
68598d29 | 545 | data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
546 | if (!data) |
547 | return NULL; | |
548 | ||
549 | blob->data = data; | |
860559fe ID |
550 | data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name); |
551 | data += sprintf(data, "version:\t%s\n", DRV_VERSION); | |
552 | data += sprintf(data, "compiled:\t%s %s\n", __DATE__, __TIME__); | |
95ea3627 ID |
553 | blob->size = strlen(blob->data); |
554 | ||
d2b69071 | 555 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
556 | } |
557 | ||
558 | static struct dentry *rt2x00debug_create_file_chipset(const char *name, | |
559 | struct rt2x00debug_intf | |
560 | *intf, | |
561 | struct | |
562 | debugfs_blob_wrapper | |
563 | *blob) | |
564 | { | |
565 | const struct rt2x00debug *debug = intf->debug; | |
566 | char *data; | |
567 | ||
68598d29 | 568 | data = kzalloc(8 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
569 | if (!data) |
570 | return NULL; | |
571 | ||
3e34c6dc | 572 | blob->data = data; |
860559fe ID |
573 | data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt); |
574 | data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf); | |
575 | data += sprintf(data, "revision:\t%08x\n", intf->rt2x00dev->chip.rev); | |
22c96c28 | 576 | data += sprintf(data, "\n"); |
860559fe ID |
577 | data += sprintf(data, "register\tbase\twords\twordsize\n"); |
578 | data += sprintf(data, "csr\t%d\t%d\t%d\n", | |
579 | debug->csr.word_base, | |
580 | debug->csr.word_count, | |
581 | debug->csr.word_size); | |
582 | data += sprintf(data, "eeprom\t%d\t%d\t%d\n", | |
583 | debug->eeprom.word_base, | |
584 | debug->eeprom.word_count, | |
585 | debug->eeprom.word_size); | |
586 | data += sprintf(data, "bbp\t%d\t%d\t%d\n", | |
587 | debug->bbp.word_base, | |
588 | debug->bbp.word_count, | |
589 | debug->bbp.word_size); | |
590 | data += sprintf(data, "rf\t%d\t%d\t%d\n", | |
591 | debug->rf.word_base, | |
592 | debug->rf.word_count, | |
593 | debug->rf.word_size); | |
3e34c6dc | 594 | blob->size = strlen(blob->data); |
95ea3627 | 595 | |
d2b69071 | 596 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
597 | } |
598 | ||
599 | void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) | |
600 | { | |
601 | const struct rt2x00debug *debug = rt2x00dev->ops->debugfs; | |
602 | struct rt2x00debug_intf *intf; | |
603 | ||
604 | intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL); | |
605 | if (!intf) { | |
606 | ERROR(rt2x00dev, "Failed to allocate debug handler.\n"); | |
607 | return; | |
608 | } | |
609 | ||
610 | intf->debug = debug; | |
611 | intf->rt2x00dev = rt2x00dev; | |
612 | rt2x00dev->debugfs_intf = intf; | |
613 | ||
614 | intf->driver_folder = | |
615 | debugfs_create_dir(intf->rt2x00dev->ops->name, | |
616 | rt2x00dev->hw->wiphy->debugfsdir); | |
cfa3fa40 | 617 | if (IS_ERR(intf->driver_folder) || !intf->driver_folder) |
95ea3627 ID |
618 | goto exit; |
619 | ||
620 | intf->driver_entry = | |
621 | rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob); | |
cfa3fa40 | 622 | if (IS_ERR(intf->driver_entry) || !intf->driver_entry) |
95ea3627 ID |
623 | goto exit; |
624 | ||
625 | intf->chipset_entry = | |
626 | rt2x00debug_create_file_chipset("chipset", | |
627 | intf, &intf->chipset_blob); | |
cfa3fa40 | 628 | if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry) |
95ea3627 ID |
629 | goto exit; |
630 | ||
d2b69071 | 631 | intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR, |
643b2521 ID |
632 | intf->driver_folder, intf, |
633 | &rt2x00debug_fop_dev_flags); | |
cfa3fa40 | 634 | if (IS_ERR(intf->dev_flags) || !intf->dev_flags) |
643b2521 ID |
635 | goto exit; |
636 | ||
91921a4e ID |
637 | intf->register_folder = |
638 | debugfs_create_dir("register", intf->driver_folder); | |
cfa3fa40 | 639 | if (IS_ERR(intf->register_folder) || !intf->register_folder) |
91921a4e ID |
640 | goto exit; |
641 | ||
642 | #define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ | |
95ea3627 ID |
643 | ({ \ |
644 | (__intf)->__name##_off_entry = \ | |
645 | debugfs_create_u32(__stringify(__name) "_offset", \ | |
d2b69071 | 646 | S_IRUSR | S_IWUSR, \ |
91921a4e | 647 | (__intf)->register_folder, \ |
95ea3627 | 648 | &(__intf)->offset_##__name); \ |
cfa3fa40 Z |
649 | if (IS_ERR((__intf)->__name##_off_entry) \ |
650 | || !(__intf)->__name##_off_entry) \ | |
95ea3627 ID |
651 | goto exit; \ |
652 | \ | |
653 | (__intf)->__name##_val_entry = \ | |
654 | debugfs_create_file(__stringify(__name) "_value", \ | |
d2b69071 | 655 | S_IRUSR | S_IWUSR, \ |
91921a4e | 656 | (__intf)->register_folder, \ |
95ea3627 | 657 | (__intf), &rt2x00debug_fop_##__name);\ |
cfa3fa40 Z |
658 | if (IS_ERR((__intf)->__name##_val_entry) \ |
659 | || !(__intf)->__name##_val_entry) \ | |
95ea3627 ID |
660 | goto exit; \ |
661 | }) | |
662 | ||
91921a4e ID |
663 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr); |
664 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom); | |
665 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp); | |
666 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf); | |
95ea3627 | 667 | |
91921a4e | 668 | #undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY |
95ea3627 | 669 | |
68598d29 ID |
670 | intf->queue_folder = |
671 | debugfs_create_dir("queue", intf->driver_folder); | |
cfa3fa40 | 672 | if (IS_ERR(intf->queue_folder) || !intf->queue_folder) |
4d8dd66c ID |
673 | goto exit; |
674 | ||
68598d29 | 675 | intf->queue_frame_dump_entry = |
d2b69071 | 676 | debugfs_create_file("dump", S_IRUSR, intf->queue_folder, |
181d6902 | 677 | intf, &rt2x00debug_fop_queue_dump); |
cfa3fa40 Z |
678 | if (IS_ERR(intf->queue_frame_dump_entry) |
679 | || !intf->queue_frame_dump_entry) | |
4d8dd66c ID |
680 | goto exit; |
681 | ||
682 | skb_queue_head_init(&intf->frame_dump_skbqueue); | |
683 | init_waitqueue_head(&intf->frame_dump_waitqueue); | |
684 | ||
68598d29 | 685 | intf->queue_stats_entry = |
d2b69071 | 686 | debugfs_create_file("queue", S_IRUSR, intf->queue_folder, |
68598d29 ID |
687 | intf, &rt2x00debug_fop_queue_stats); |
688 | ||
2bb057d0 ID |
689 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
690 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
691 | intf->crypto_stats_entry = | |
692 | debugfs_create_file("crypto", S_IRUGO, intf->queue_folder, | |
693 | intf, &rt2x00debug_fop_crypto_stats); | |
694 | #endif | |
695 | ||
95ea3627 ID |
696 | return; |
697 | ||
698 | exit: | |
699 | rt2x00debug_deregister(rt2x00dev); | |
700 | ERROR(rt2x00dev, "Failed to register debug handler.\n"); | |
701 | ||
702 | return; | |
703 | } | |
704 | ||
705 | void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) | |
706 | { | |
4d8dd66c | 707 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; |
95ea3627 ID |
708 | |
709 | if (unlikely(!intf)) | |
710 | return; | |
711 | ||
4d8dd66c ID |
712 | skb_queue_purge(&intf->frame_dump_skbqueue); |
713 | ||
2bb057d0 ID |
714 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
715 | debugfs_remove(intf->crypto_stats_entry); | |
716 | #endif | |
68598d29 ID |
717 | debugfs_remove(intf->queue_stats_entry); |
718 | debugfs_remove(intf->queue_frame_dump_entry); | |
719 | debugfs_remove(intf->queue_folder); | |
95ea3627 ID |
720 | debugfs_remove(intf->rf_val_entry); |
721 | debugfs_remove(intf->rf_off_entry); | |
722 | debugfs_remove(intf->bbp_val_entry); | |
723 | debugfs_remove(intf->bbp_off_entry); | |
724 | debugfs_remove(intf->eeprom_val_entry); | |
725 | debugfs_remove(intf->eeprom_off_entry); | |
726 | debugfs_remove(intf->csr_val_entry); | |
727 | debugfs_remove(intf->csr_off_entry); | |
91921a4e | 728 | debugfs_remove(intf->register_folder); |
643b2521 | 729 | debugfs_remove(intf->dev_flags); |
95ea3627 ID |
730 | debugfs_remove(intf->chipset_entry); |
731 | debugfs_remove(intf->driver_entry); | |
732 | debugfs_remove(intf->driver_folder); | |
733 | kfree(intf->chipset_blob.data); | |
734 | kfree(intf->driver_blob.data); | |
735 | kfree(intf); | |
736 | ||
737 | rt2x00dev->debugfs_intf = NULL; | |
738 | } |