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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> |
5a0e3ad6 | 31 | #include <linux/slab.h> |
95ea3627 ID |
32 | #include <linux/uaccess.h> |
33 | ||
34 | #include "rt2x00.h" | |
35 | #include "rt2x00lib.h" | |
4d8dd66c | 36 | #include "rt2x00dump.h" |
95ea3627 | 37 | |
68598d29 | 38 | #define MAX_LINE_LENGTH 64 |
95ea3627 | 39 | |
2bb057d0 ID |
40 | struct rt2x00debug_crypto { |
41 | unsigned long success; | |
42 | unsigned long icv_error; | |
43 | unsigned long mic_error; | |
44 | unsigned long key_error; | |
45 | }; | |
46 | ||
95ea3627 ID |
47 | struct rt2x00debug_intf { |
48 | /* | |
49 | * Pointer to driver structure where | |
50 | * this debugfs entry belongs to. | |
51 | */ | |
52 | struct rt2x00_dev *rt2x00dev; | |
53 | ||
54 | /* | |
55 | * Reference to the rt2x00debug structure | |
56 | * which can be used to communicate with | |
57 | * the registers. | |
58 | */ | |
59 | const struct rt2x00debug *debug; | |
60 | ||
61 | /* | |
62 | * Debugfs entries for: | |
63 | * - driver folder | |
91921a4e ID |
64 | * - driver file |
65 | * - chipset file | |
66 | * - device flags file | |
67 | * - register folder | |
68 | * - csr offset/value files | |
69 | * - eeprom offset/value files | |
70 | * - bbp offset/value files | |
71 | * - rf offset/value files | |
68598d29 | 72 | * - queue folder |
4d8dd66c | 73 | * - frame dump file |
68598d29 | 74 | * - queue stats file |
2bb057d0 | 75 | * - crypto stats file |
95ea3627 ID |
76 | */ |
77 | struct dentry *driver_folder; | |
78 | struct dentry *driver_entry; | |
79 | struct dentry *chipset_entry; | |
643b2521 | 80 | struct dentry *dev_flags; |
91921a4e | 81 | struct dentry *register_folder; |
95ea3627 ID |
82 | struct dentry *csr_off_entry; |
83 | struct dentry *csr_val_entry; | |
84 | struct dentry *eeprom_off_entry; | |
85 | struct dentry *eeprom_val_entry; | |
86 | struct dentry *bbp_off_entry; | |
87 | struct dentry *bbp_val_entry; | |
88 | struct dentry *rf_off_entry; | |
89 | struct dentry *rf_val_entry; | |
68598d29 ID |
90 | struct dentry *queue_folder; |
91 | struct dentry *queue_frame_dump_entry; | |
92 | struct dentry *queue_stats_entry; | |
2bb057d0 | 93 | struct dentry *crypto_stats_entry; |
4d8dd66c ID |
94 | |
95 | /* | |
96 | * The frame dump file only allows a single reader, | |
97 | * so we need to store the current state here. | |
98 | */ | |
99 | unsigned long frame_dump_flags; | |
100 | #define FRAME_DUMP_FILE_OPEN 1 | |
101 | ||
102 | /* | |
103 | * We queue each frame before dumping it to the user, | |
104 | * per read command we will pass a single skb structure | |
105 | * so we should be prepared to queue multiple sk buffers | |
106 | * before sending it to userspace. | |
107 | */ | |
108 | struct sk_buff_head frame_dump_skbqueue; | |
109 | wait_queue_head_t frame_dump_waitqueue; | |
95ea3627 | 110 | |
2bb057d0 ID |
111 | /* |
112 | * HW crypto statistics. | |
3ad2f3fb | 113 | * All statistics are stored separately per cipher type. |
2bb057d0 ID |
114 | */ |
115 | struct rt2x00debug_crypto crypto_stats[CIPHER_MAX]; | |
116 | ||
95ea3627 ID |
117 | /* |
118 | * Driver and chipset files will use a data buffer | |
119 | * that has been created in advance. This will simplify | |
120 | * the code since we can use the debugfs functions. | |
121 | */ | |
122 | struct debugfs_blob_wrapper driver_blob; | |
123 | struct debugfs_blob_wrapper chipset_blob; | |
124 | ||
125 | /* | |
126 | * Requested offset for each register type. | |
127 | */ | |
128 | unsigned int offset_csr; | |
129 | unsigned int offset_eeprom; | |
130 | unsigned int offset_bbp; | |
131 | unsigned int offset_rf; | |
132 | }; | |
133 | ||
2bb057d0 | 134 | void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, |
84e3196f | 135 | struct rxdone_entry_desc *rxdesc) |
2bb057d0 ID |
136 | { |
137 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
84e3196f ID |
138 | enum cipher cipher = rxdesc->cipher; |
139 | enum rx_crypto status = rxdesc->cipher_status; | |
2bb057d0 ID |
140 | |
141 | if (cipher == CIPHER_TKIP_NO_MIC) | |
142 | cipher = CIPHER_TKIP; | |
a6c67339 | 143 | if (cipher == CIPHER_NONE || cipher >= CIPHER_MAX) |
2bb057d0 ID |
144 | return; |
145 | ||
146 | /* Remove CIPHER_NONE index */ | |
147 | cipher--; | |
148 | ||
149 | intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS); | |
150 | intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV); | |
151 | intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC); | |
152 | intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY); | |
153 | } | |
154 | ||
4d8dd66c | 155 | void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, |
5a6e5999 | 156 | enum rt2x00_dump_type type, struct sk_buff *skb) |
4d8dd66c ID |
157 | { |
158 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
878f7045 | 159 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); |
4d8dd66c ID |
160 | struct sk_buff *skbcopy; |
161 | struct rt2x00dump_hdr *dump_hdr; | |
162 | struct timeval timestamp; | |
fd76f148 | 163 | u32 data_len; |
4d8dd66c ID |
164 | |
165 | do_gettimeofday(×tamp); | |
4d8dd66c ID |
166 | |
167 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
168 | return; | |
169 | ||
170 | if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) { | |
171 | DEBUG(rt2x00dev, "txrx dump queue length exceeded.\n"); | |
172 | return; | |
173 | } | |
174 | ||
fd76f148 GW |
175 | data_len = skb->len; |
176 | if (skbdesc->flags & SKBDESC_DESC_IN_SKB) | |
177 | data_len -= skbdesc->desc_len; | |
178 | ||
179 | skbcopy = alloc_skb(sizeof(*dump_hdr) + skbdesc->desc_len + data_len, | |
4d8dd66c ID |
180 | GFP_ATOMIC); |
181 | if (!skbcopy) { | |
182 | DEBUG(rt2x00dev, "Failed to copy skb for dump.\n"); | |
183 | return; | |
184 | } | |
185 | ||
186 | dump_hdr = (struct rt2x00dump_hdr *)skb_put(skbcopy, sizeof(*dump_hdr)); | |
187 | dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION); | |
188 | dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr)); | |
878f7045 | 189 | dump_hdr->desc_length = cpu_to_le32(skbdesc->desc_len); |
fd76f148 | 190 | dump_hdr->data_length = cpu_to_le32(data_len); |
4d8dd66c ID |
191 | dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt); |
192 | dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf); | |
49e721ec | 193 | dump_hdr->chip_rev = cpu_to_le16(rt2x00dev->chip.rev); |
5a6e5999 | 194 | dump_hdr->type = cpu_to_le16(type); |
878f7045 GW |
195 | dump_hdr->queue_index = skbdesc->entry->queue->qid; |
196 | dump_hdr->entry_index = skbdesc->entry->entry_idx; | |
4d8dd66c ID |
197 | dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec); |
198 | dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec); | |
199 | ||
fd76f148 GW |
200 | if (!(skbdesc->flags & SKBDESC_DESC_IN_SKB)) |
201 | memcpy(skb_put(skbcopy, skbdesc->desc_len), skbdesc->desc, | |
202 | skbdesc->desc_len); | |
d56d453a | 203 | memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len); |
4d8dd66c ID |
204 | |
205 | skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy); | |
206 | wake_up_interruptible(&intf->frame_dump_waitqueue); | |
207 | ||
208 | /* | |
209 | * Verify that the file has not been closed while we were working. | |
210 | */ | |
211 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
212 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
213 | } | |
b4df4708 | 214 | EXPORT_SYMBOL_GPL(rt2x00debug_dump_frame); |
4d8dd66c | 215 | |
95ea3627 ID |
216 | static int rt2x00debug_file_open(struct inode *inode, struct file *file) |
217 | { | |
218 | struct rt2x00debug_intf *intf = inode->i_private; | |
219 | ||
220 | file->private_data = inode->i_private; | |
221 | ||
222 | if (!try_module_get(intf->debug->owner)) | |
223 | return -EBUSY; | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | static int rt2x00debug_file_release(struct inode *inode, struct file *file) | |
229 | { | |
230 | struct rt2x00debug_intf *intf = file->private_data; | |
231 | ||
232 | module_put(intf->debug->owner); | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
181d6902 | 237 | static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
238 | { |
239 | struct rt2x00debug_intf *intf = inode->i_private; | |
240 | int retval; | |
241 | ||
242 | retval = rt2x00debug_file_open(inode, file); | |
243 | if (retval) | |
244 | return retval; | |
245 | ||
246 | if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) { | |
247 | rt2x00debug_file_release(inode, file); | |
248 | return -EBUSY; | |
249 | } | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
181d6902 | 254 | static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
255 | { |
256 | struct rt2x00debug_intf *intf = inode->i_private; | |
257 | ||
258 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
259 | ||
260 | clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags); | |
261 | ||
262 | return rt2x00debug_file_release(inode, file); | |
263 | } | |
264 | ||
181d6902 ID |
265 | static ssize_t rt2x00debug_read_queue_dump(struct file *file, |
266 | char __user *buf, | |
267 | size_t length, | |
268 | loff_t *offset) | |
4d8dd66c ID |
269 | { |
270 | struct rt2x00debug_intf *intf = file->private_data; | |
271 | struct sk_buff *skb; | |
272 | size_t status; | |
273 | int retval; | |
274 | ||
275 | if (file->f_flags & O_NONBLOCK) | |
276 | return -EAGAIN; | |
277 | ||
278 | retval = | |
279 | wait_event_interruptible(intf->frame_dump_waitqueue, | |
280 | (skb = | |
281 | skb_dequeue(&intf->frame_dump_skbqueue))); | |
282 | if (retval) | |
283 | return retval; | |
284 | ||
285 | status = min((size_t)skb->len, length); | |
286 | if (copy_to_user(buf, skb->data, status)) { | |
287 | status = -EFAULT; | |
288 | goto exit; | |
289 | } | |
290 | ||
291 | *offset += status; | |
292 | ||
293 | exit: | |
294 | kfree_skb(skb); | |
295 | ||
296 | return status; | |
297 | } | |
298 | ||
181d6902 | 299 | static unsigned int rt2x00debug_poll_queue_dump(struct file *file, |
55887511 | 300 | poll_table *wait) |
4d8dd66c ID |
301 | { |
302 | struct rt2x00debug_intf *intf = file->private_data; | |
303 | ||
304 | poll_wait(file, &intf->frame_dump_waitqueue, wait); | |
305 | ||
306 | if (!skb_queue_empty(&intf->frame_dump_skbqueue)) | |
307 | return POLLOUT | POLLWRNORM; | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
181d6902 | 312 | static const struct file_operations rt2x00debug_fop_queue_dump = { |
4d8dd66c | 313 | .owner = THIS_MODULE, |
181d6902 ID |
314 | .read = rt2x00debug_read_queue_dump, |
315 | .poll = rt2x00debug_poll_queue_dump, | |
316 | .open = rt2x00debug_open_queue_dump, | |
317 | .release = rt2x00debug_release_queue_dump, | |
4d8dd66c ID |
318 | }; |
319 | ||
68598d29 ID |
320 | static ssize_t rt2x00debug_read_queue_stats(struct file *file, |
321 | char __user *buf, | |
322 | size_t length, | |
323 | loff_t *offset) | |
324 | { | |
325 | struct rt2x00debug_intf *intf = file->private_data; | |
326 | struct data_queue *queue; | |
5f46c4d0 | 327 | unsigned long irqflags; |
68598d29 ID |
328 | unsigned int lines = 1 + intf->rt2x00dev->data_queues; |
329 | size_t size; | |
330 | char *data; | |
331 | char *temp; | |
332 | ||
333 | if (*offset) | |
334 | return 0; | |
335 | ||
336 | data = kzalloc(lines * MAX_LINE_LENGTH, GFP_KERNEL); | |
337 | if (!data) | |
338 | return -ENOMEM; | |
339 | ||
340 | temp = data + | |
341 | sprintf(data, "qid\tcount\tlimit\tlength\tindex\tdone\tcrypto\n"); | |
342 | ||
343 | queue_for_each(intf->rt2x00dev, queue) { | |
5f46c4d0 | 344 | spin_lock_irqsave(&queue->lock, irqflags); |
68598d29 ID |
345 | |
346 | temp += sprintf(temp, "%d\t%d\t%d\t%d\t%d\t%d\t%d\n", queue->qid, | |
347 | queue->count, queue->limit, queue->length, | |
348 | queue->index[Q_INDEX], | |
349 | queue->index[Q_INDEX_DONE], | |
350 | queue->index[Q_INDEX_CRYPTO]); | |
351 | ||
5f46c4d0 | 352 | spin_unlock_irqrestore(&queue->lock, irqflags); |
68598d29 ID |
353 | } |
354 | ||
355 | size = strlen(data); | |
356 | size = min(size, length); | |
357 | ||
358 | if (copy_to_user(buf, data, size)) { | |
359 | kfree(data); | |
360 | return -EFAULT; | |
361 | } | |
362 | ||
363 | kfree(data); | |
364 | ||
365 | *offset += size; | |
366 | return size; | |
367 | } | |
368 | ||
369 | static const struct file_operations rt2x00debug_fop_queue_stats = { | |
370 | .owner = THIS_MODULE, | |
371 | .read = rt2x00debug_read_queue_stats, | |
372 | .open = rt2x00debug_file_open, | |
373 | .release = rt2x00debug_file_release, | |
374 | }; | |
375 | ||
2bb057d0 ID |
376 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
377 | static ssize_t rt2x00debug_read_crypto_stats(struct file *file, | |
378 | char __user *buf, | |
379 | size_t length, | |
380 | loff_t *offset) | |
381 | { | |
382 | struct rt2x00debug_intf *intf = file->private_data; | |
383 | char *name[] = { "WEP64", "WEP128", "TKIP", "AES" }; | |
384 | char *data; | |
385 | char *temp; | |
386 | size_t size; | |
387 | unsigned int i; | |
388 | ||
389 | if (*offset) | |
390 | return 0; | |
391 | ||
55887511 | 392 | data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL); |
2bb057d0 ID |
393 | if (!data) |
394 | return -ENOMEM; | |
395 | ||
396 | temp = data; | |
397 | temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n"); | |
398 | ||
399 | for (i = 0; i < CIPHER_MAX; i++) { | |
400 | temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i], | |
401 | intf->crypto_stats[i].success, | |
402 | intf->crypto_stats[i].icv_error, | |
403 | intf->crypto_stats[i].mic_error, | |
404 | intf->crypto_stats[i].key_error); | |
405 | } | |
406 | ||
407 | size = strlen(data); | |
408 | size = min(size, length); | |
409 | ||
410 | if (copy_to_user(buf, data, size)) { | |
411 | kfree(data); | |
412 | return -EFAULT; | |
413 | } | |
414 | ||
415 | kfree(data); | |
416 | ||
417 | *offset += size; | |
418 | return size; | |
419 | } | |
420 | ||
421 | static const struct file_operations rt2x00debug_fop_crypto_stats = { | |
422 | .owner = THIS_MODULE, | |
423 | .read = rt2x00debug_read_crypto_stats, | |
424 | .open = rt2x00debug_file_open, | |
425 | .release = rt2x00debug_file_release, | |
426 | }; | |
427 | #endif | |
428 | ||
95ea3627 ID |
429 | #define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \ |
430 | static ssize_t rt2x00debug_read_##__name(struct file *file, \ | |
431 | char __user *buf, \ | |
432 | size_t length, \ | |
433 | loff_t *offset) \ | |
434 | { \ | |
91921a4e | 435 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
436 | const struct rt2x00debug *debug = intf->debug; \ |
437 | char line[16]; \ | |
438 | size_t size; \ | |
743b97ca | 439 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
440 | __type value; \ |
441 | \ | |
442 | if (*offset) \ | |
443 | return 0; \ | |
444 | \ | |
743b97ca | 445 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
446 | return -EINVAL; \ |
447 | \ | |
abd2fdb4 ID |
448 | index += (debug->__name.word_base / \ |
449 | debug->__name.word_size); \ | |
450 | \ | |
743b97ca ID |
451 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
452 | index *= debug->__name.word_size; \ | |
453 | \ | |
743b97ca | 454 | debug->__name.read(intf->rt2x00dev, index, &value); \ |
95ea3627 ID |
455 | \ |
456 | size = sprintf(line, __format, value); \ | |
457 | \ | |
458 | if (copy_to_user(buf, line, size)) \ | |
459 | return -EFAULT; \ | |
460 | \ | |
461 | *offset += size; \ | |
462 | return size; \ | |
463 | } | |
464 | ||
465 | #define RT2X00DEBUGFS_OPS_WRITE(__name, __type) \ | |
466 | static ssize_t rt2x00debug_write_##__name(struct file *file, \ | |
467 | const char __user *buf,\ | |
468 | size_t length, \ | |
469 | loff_t *offset) \ | |
470 | { \ | |
91921a4e | 471 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
472 | const struct rt2x00debug *debug = intf->debug; \ |
473 | char line[16]; \ | |
474 | size_t size; \ | |
743b97ca | 475 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
476 | __type value; \ |
477 | \ | |
478 | if (*offset) \ | |
479 | return 0; \ | |
480 | \ | |
743b97ca | 481 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
482 | return -EINVAL; \ |
483 | \ | |
484 | if (copy_from_user(line, buf, length)) \ | |
485 | return -EFAULT; \ | |
486 | \ | |
487 | size = strlen(line); \ | |
488 | value = simple_strtoul(line, NULL, 0); \ | |
489 | \ | |
abd2fdb4 ID |
490 | index += (debug->__name.word_base / \ |
491 | debug->__name.word_size); \ | |
492 | \ | |
743b97ca ID |
493 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
494 | index *= debug->__name.word_size; \ | |
495 | \ | |
743b97ca | 496 | debug->__name.write(intf->rt2x00dev, index, value); \ |
95ea3627 ID |
497 | \ |
498 | *offset += size; \ | |
499 | return size; \ | |
500 | } | |
501 | ||
502 | #define RT2X00DEBUGFS_OPS(__name, __format, __type) \ | |
503 | RT2X00DEBUGFS_OPS_READ(__name, __format, __type); \ | |
504 | RT2X00DEBUGFS_OPS_WRITE(__name, __type); \ | |
505 | \ | |
506 | static const struct file_operations rt2x00debug_fop_##__name = {\ | |
507 | .owner = THIS_MODULE, \ | |
508 | .read = rt2x00debug_read_##__name, \ | |
509 | .write = rt2x00debug_write_##__name, \ | |
510 | .open = rt2x00debug_file_open, \ | |
511 | .release = rt2x00debug_file_release, \ | |
512 | }; | |
513 | ||
514 | RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32); | |
515 | RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); | |
516 | RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8); | |
517 | RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32); | |
518 | ||
643b2521 ID |
519 | static ssize_t rt2x00debug_read_dev_flags(struct file *file, |
520 | char __user *buf, | |
521 | size_t length, | |
522 | loff_t *offset) | |
523 | { | |
524 | struct rt2x00debug_intf *intf = file->private_data; | |
525 | char line[16]; | |
526 | size_t size; | |
527 | ||
528 | if (*offset) | |
529 | return 0; | |
530 | ||
531 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags); | |
532 | ||
533 | if (copy_to_user(buf, line, size)) | |
534 | return -EFAULT; | |
535 | ||
536 | *offset += size; | |
537 | return size; | |
538 | } | |
539 | ||
540 | static const struct file_operations rt2x00debug_fop_dev_flags = { | |
541 | .owner = THIS_MODULE, | |
542 | .read = rt2x00debug_read_dev_flags, | |
543 | .open = rt2x00debug_file_open, | |
544 | .release = rt2x00debug_file_release, | |
545 | }; | |
546 | ||
95ea3627 ID |
547 | static struct dentry *rt2x00debug_create_file_driver(const char *name, |
548 | struct rt2x00debug_intf | |
549 | *intf, | |
550 | struct debugfs_blob_wrapper | |
551 | *blob) | |
552 | { | |
553 | char *data; | |
554 | ||
68598d29 | 555 | data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
556 | if (!data) |
557 | return NULL; | |
558 | ||
559 | blob->data = data; | |
860559fe ID |
560 | data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name); |
561 | data += sprintf(data, "version:\t%s\n", DRV_VERSION); | |
562 | data += sprintf(data, "compiled:\t%s %s\n", __DATE__, __TIME__); | |
95ea3627 ID |
563 | blob->size = strlen(blob->data); |
564 | ||
d2b69071 | 565 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
566 | } |
567 | ||
568 | static struct dentry *rt2x00debug_create_file_chipset(const char *name, | |
569 | struct rt2x00debug_intf | |
570 | *intf, | |
571 | struct | |
572 | debugfs_blob_wrapper | |
573 | *blob) | |
574 | { | |
575 | const struct rt2x00debug *debug = intf->debug; | |
576 | char *data; | |
577 | ||
68598d29 | 578 | data = kzalloc(8 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
579 | if (!data) |
580 | return NULL; | |
581 | ||
3e34c6dc | 582 | blob->data = data; |
860559fe ID |
583 | data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt); |
584 | data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf); | |
49e721ec | 585 | data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev); |
22c96c28 | 586 | data += sprintf(data, "\n"); |
860559fe ID |
587 | data += sprintf(data, "register\tbase\twords\twordsize\n"); |
588 | data += sprintf(data, "csr\t%d\t%d\t%d\n", | |
589 | debug->csr.word_base, | |
590 | debug->csr.word_count, | |
591 | debug->csr.word_size); | |
592 | data += sprintf(data, "eeprom\t%d\t%d\t%d\n", | |
593 | debug->eeprom.word_base, | |
594 | debug->eeprom.word_count, | |
595 | debug->eeprom.word_size); | |
596 | data += sprintf(data, "bbp\t%d\t%d\t%d\n", | |
597 | debug->bbp.word_base, | |
598 | debug->bbp.word_count, | |
599 | debug->bbp.word_size); | |
600 | data += sprintf(data, "rf\t%d\t%d\t%d\n", | |
601 | debug->rf.word_base, | |
602 | debug->rf.word_count, | |
603 | debug->rf.word_size); | |
3e34c6dc | 604 | blob->size = strlen(blob->data); |
95ea3627 | 605 | |
d2b69071 | 606 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
607 | } |
608 | ||
609 | void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) | |
610 | { | |
611 | const struct rt2x00debug *debug = rt2x00dev->ops->debugfs; | |
612 | struct rt2x00debug_intf *intf; | |
613 | ||
614 | intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL); | |
615 | if (!intf) { | |
616 | ERROR(rt2x00dev, "Failed to allocate debug handler.\n"); | |
617 | return; | |
618 | } | |
619 | ||
620 | intf->debug = debug; | |
621 | intf->rt2x00dev = rt2x00dev; | |
622 | rt2x00dev->debugfs_intf = intf; | |
623 | ||
624 | intf->driver_folder = | |
625 | debugfs_create_dir(intf->rt2x00dev->ops->name, | |
626 | rt2x00dev->hw->wiphy->debugfsdir); | |
cfa3fa40 | 627 | if (IS_ERR(intf->driver_folder) || !intf->driver_folder) |
95ea3627 ID |
628 | goto exit; |
629 | ||
630 | intf->driver_entry = | |
631 | rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob); | |
cfa3fa40 | 632 | if (IS_ERR(intf->driver_entry) || !intf->driver_entry) |
95ea3627 ID |
633 | goto exit; |
634 | ||
635 | intf->chipset_entry = | |
636 | rt2x00debug_create_file_chipset("chipset", | |
637 | intf, &intf->chipset_blob); | |
cfa3fa40 | 638 | if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry) |
95ea3627 ID |
639 | goto exit; |
640 | ||
d2b69071 | 641 | intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR, |
643b2521 ID |
642 | intf->driver_folder, intf, |
643 | &rt2x00debug_fop_dev_flags); | |
cfa3fa40 | 644 | if (IS_ERR(intf->dev_flags) || !intf->dev_flags) |
643b2521 ID |
645 | goto exit; |
646 | ||
91921a4e ID |
647 | intf->register_folder = |
648 | debugfs_create_dir("register", intf->driver_folder); | |
cfa3fa40 | 649 | if (IS_ERR(intf->register_folder) || !intf->register_folder) |
91921a4e ID |
650 | goto exit; |
651 | ||
652 | #define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ | |
95ea3627 ID |
653 | ({ \ |
654 | (__intf)->__name##_off_entry = \ | |
655 | debugfs_create_u32(__stringify(__name) "_offset", \ | |
d2b69071 | 656 | S_IRUSR | S_IWUSR, \ |
91921a4e | 657 | (__intf)->register_folder, \ |
95ea3627 | 658 | &(__intf)->offset_##__name); \ |
cfa3fa40 Z |
659 | if (IS_ERR((__intf)->__name##_off_entry) \ |
660 | || !(__intf)->__name##_off_entry) \ | |
95ea3627 ID |
661 | goto exit; \ |
662 | \ | |
663 | (__intf)->__name##_val_entry = \ | |
664 | debugfs_create_file(__stringify(__name) "_value", \ | |
d2b69071 | 665 | S_IRUSR | S_IWUSR, \ |
91921a4e | 666 | (__intf)->register_folder, \ |
95ea3627 | 667 | (__intf), &rt2x00debug_fop_##__name);\ |
cfa3fa40 Z |
668 | if (IS_ERR((__intf)->__name##_val_entry) \ |
669 | || !(__intf)->__name##_val_entry) \ | |
95ea3627 ID |
670 | goto exit; \ |
671 | }) | |
672 | ||
91921a4e ID |
673 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr); |
674 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom); | |
675 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp); | |
676 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf); | |
95ea3627 | 677 | |
91921a4e | 678 | #undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY |
95ea3627 | 679 | |
68598d29 ID |
680 | intf->queue_folder = |
681 | debugfs_create_dir("queue", intf->driver_folder); | |
cfa3fa40 | 682 | if (IS_ERR(intf->queue_folder) || !intf->queue_folder) |
4d8dd66c ID |
683 | goto exit; |
684 | ||
68598d29 | 685 | intf->queue_frame_dump_entry = |
d2b69071 | 686 | debugfs_create_file("dump", S_IRUSR, intf->queue_folder, |
181d6902 | 687 | intf, &rt2x00debug_fop_queue_dump); |
cfa3fa40 Z |
688 | if (IS_ERR(intf->queue_frame_dump_entry) |
689 | || !intf->queue_frame_dump_entry) | |
4d8dd66c ID |
690 | goto exit; |
691 | ||
692 | skb_queue_head_init(&intf->frame_dump_skbqueue); | |
693 | init_waitqueue_head(&intf->frame_dump_waitqueue); | |
694 | ||
68598d29 | 695 | intf->queue_stats_entry = |
d2b69071 | 696 | debugfs_create_file("queue", S_IRUSR, intf->queue_folder, |
68598d29 ID |
697 | intf, &rt2x00debug_fop_queue_stats); |
698 | ||
2bb057d0 ID |
699 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
700 | if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) | |
701 | intf->crypto_stats_entry = | |
702 | debugfs_create_file("crypto", S_IRUGO, intf->queue_folder, | |
703 | intf, &rt2x00debug_fop_crypto_stats); | |
704 | #endif | |
705 | ||
95ea3627 ID |
706 | return; |
707 | ||
708 | exit: | |
709 | rt2x00debug_deregister(rt2x00dev); | |
710 | ERROR(rt2x00dev, "Failed to register debug handler.\n"); | |
95ea3627 ID |
711 | } |
712 | ||
713 | void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) | |
714 | { | |
4d8dd66c | 715 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; |
95ea3627 ID |
716 | |
717 | if (unlikely(!intf)) | |
718 | return; | |
719 | ||
4d8dd66c ID |
720 | skb_queue_purge(&intf->frame_dump_skbqueue); |
721 | ||
2bb057d0 ID |
722 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
723 | debugfs_remove(intf->crypto_stats_entry); | |
724 | #endif | |
68598d29 ID |
725 | debugfs_remove(intf->queue_stats_entry); |
726 | debugfs_remove(intf->queue_frame_dump_entry); | |
727 | debugfs_remove(intf->queue_folder); | |
95ea3627 ID |
728 | debugfs_remove(intf->rf_val_entry); |
729 | debugfs_remove(intf->rf_off_entry); | |
730 | debugfs_remove(intf->bbp_val_entry); | |
731 | debugfs_remove(intf->bbp_off_entry); | |
732 | debugfs_remove(intf->eeprom_val_entry); | |
733 | debugfs_remove(intf->eeprom_off_entry); | |
734 | debugfs_remove(intf->csr_val_entry); | |
735 | debugfs_remove(intf->csr_off_entry); | |
91921a4e | 736 | debugfs_remove(intf->register_folder); |
643b2521 | 737 | debugfs_remove(intf->dev_flags); |
95ea3627 ID |
738 | debugfs_remove(intf->chipset_entry); |
739 | debugfs_remove(intf->driver_entry); | |
740 | debugfs_remove(intf->driver_folder); | |
741 | kfree(intf->chipset_blob.data); | |
742 | kfree(intf->driver_blob.data); | |
743 | kfree(intf); | |
744 | ||
745 | rt2x00dev->debugfs_intf = NULL; | |
746 | } |