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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 | |
a05b8c58 | 16 | along with this program; if not, see <http://www.gnu.org/licenses/>. |
95ea3627 ID |
17 | */ |
18 | ||
19 | /* | |
20 | Module: rt2x00lib | |
21 | Abstract: rt2x00 debugfs specific routines. | |
22 | */ | |
23 | ||
95ea3627 ID |
24 | #include <linux/debugfs.h> |
25 | #include <linux/kernel.h> | |
26 | #include <linux/module.h> | |
4d8dd66c | 27 | #include <linux/poll.h> |
d43c36dc | 28 | #include <linux/sched.h> |
5a0e3ad6 | 29 | #include <linux/slab.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 | |
7dab73b3 ID |
64 | * - device state flags file |
65 | * - device capability flags file | |
91921a4e ID |
66 | * - register folder |
67 | * - csr offset/value files | |
68 | * - eeprom offset/value files | |
69 | * - bbp offset/value files | |
70 | * - rf offset/value files | |
f2bd7f16 | 71 | * - rfcsr 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; |
7dab73b3 | 81 | struct dentry *cap_flags; |
91921a4e | 82 | struct dentry *register_folder; |
95ea3627 ID |
83 | struct dentry *csr_off_entry; |
84 | struct dentry *csr_val_entry; | |
85 | struct dentry *eeprom_off_entry; | |
86 | struct dentry *eeprom_val_entry; | |
87 | struct dentry *bbp_off_entry; | |
88 | struct dentry *bbp_val_entry; | |
89 | struct dentry *rf_off_entry; | |
90 | struct dentry *rf_val_entry; | |
f2bd7f16 AA |
91 | struct dentry *rfcsr_off_entry; |
92 | struct dentry *rfcsr_val_entry; | |
68598d29 ID |
93 | struct dentry *queue_folder; |
94 | struct dentry *queue_frame_dump_entry; | |
95 | struct dentry *queue_stats_entry; | |
2bb057d0 | 96 | struct dentry *crypto_stats_entry; |
4d8dd66c ID |
97 | |
98 | /* | |
99 | * The frame dump file only allows a single reader, | |
100 | * so we need to store the current state here. | |
101 | */ | |
102 | unsigned long frame_dump_flags; | |
103 | #define FRAME_DUMP_FILE_OPEN 1 | |
104 | ||
105 | /* | |
106 | * We queue each frame before dumping it to the user, | |
107 | * per read command we will pass a single skb structure | |
108 | * so we should be prepared to queue multiple sk buffers | |
109 | * before sending it to userspace. | |
110 | */ | |
111 | struct sk_buff_head frame_dump_skbqueue; | |
112 | wait_queue_head_t frame_dump_waitqueue; | |
95ea3627 | 113 | |
2bb057d0 ID |
114 | /* |
115 | * HW crypto statistics. | |
3ad2f3fb | 116 | * All statistics are stored separately per cipher type. |
2bb057d0 ID |
117 | */ |
118 | struct rt2x00debug_crypto crypto_stats[CIPHER_MAX]; | |
119 | ||
95ea3627 ID |
120 | /* |
121 | * Driver and chipset files will use a data buffer | |
122 | * that has been created in advance. This will simplify | |
123 | * the code since we can use the debugfs functions. | |
124 | */ | |
125 | struct debugfs_blob_wrapper driver_blob; | |
126 | struct debugfs_blob_wrapper chipset_blob; | |
127 | ||
128 | /* | |
129 | * Requested offset for each register type. | |
130 | */ | |
131 | unsigned int offset_csr; | |
132 | unsigned int offset_eeprom; | |
133 | unsigned int offset_bbp; | |
134 | unsigned int offset_rf; | |
f2bd7f16 | 135 | unsigned int offset_rfcsr; |
95ea3627 ID |
136 | }; |
137 | ||
2bb057d0 | 138 | void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, |
84e3196f | 139 | struct rxdone_entry_desc *rxdesc) |
2bb057d0 ID |
140 | { |
141 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
84e3196f ID |
142 | enum cipher cipher = rxdesc->cipher; |
143 | enum rx_crypto status = rxdesc->cipher_status; | |
2bb057d0 ID |
144 | |
145 | if (cipher == CIPHER_TKIP_NO_MIC) | |
146 | cipher = CIPHER_TKIP; | |
a6c67339 | 147 | if (cipher == CIPHER_NONE || cipher >= CIPHER_MAX) |
2bb057d0 ID |
148 | return; |
149 | ||
150 | /* Remove CIPHER_NONE index */ | |
151 | cipher--; | |
152 | ||
153 | intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS); | |
154 | intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV); | |
155 | intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC); | |
156 | intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY); | |
157 | } | |
158 | ||
4d8dd66c | 159 | void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, |
5a6e5999 | 160 | enum rt2x00_dump_type type, struct sk_buff *skb) |
4d8dd66c ID |
161 | { |
162 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
878f7045 | 163 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); |
4d8dd66c ID |
164 | struct sk_buff *skbcopy; |
165 | struct rt2x00dump_hdr *dump_hdr; | |
166 | struct timeval timestamp; | |
fd76f148 | 167 | u32 data_len; |
4d8dd66c | 168 | |
e2f8c875 | 169 | if (likely(!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))) |
4d8dd66c ID |
170 | return; |
171 | ||
e2f8c875 HS |
172 | do_gettimeofday(×tamp); |
173 | ||
4d8dd66c | 174 | if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) { |
ec9c4989 | 175 | rt2x00_dbg(rt2x00dev, "txrx dump queue length exceeded\n"); |
4d8dd66c ID |
176 | return; |
177 | } | |
178 | ||
fd76f148 GW |
179 | data_len = skb->len; |
180 | if (skbdesc->flags & SKBDESC_DESC_IN_SKB) | |
181 | data_len -= skbdesc->desc_len; | |
182 | ||
183 | skbcopy = alloc_skb(sizeof(*dump_hdr) + skbdesc->desc_len + data_len, | |
4d8dd66c ID |
184 | GFP_ATOMIC); |
185 | if (!skbcopy) { | |
ec9c4989 | 186 | rt2x00_dbg(rt2x00dev, "Failed to copy skb for dump\n"); |
4d8dd66c ID |
187 | return; |
188 | } | |
189 | ||
190 | dump_hdr = (struct rt2x00dump_hdr *)skb_put(skbcopy, sizeof(*dump_hdr)); | |
191 | dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION); | |
192 | dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr)); | |
878f7045 | 193 | dump_hdr->desc_length = cpu_to_le32(skbdesc->desc_len); |
fd76f148 | 194 | dump_hdr->data_length = cpu_to_le32(data_len); |
4d8dd66c ID |
195 | dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt); |
196 | dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf); | |
49e721ec | 197 | dump_hdr->chip_rev = cpu_to_le16(rt2x00dev->chip.rev); |
5a6e5999 | 198 | dump_hdr->type = cpu_to_le16(type); |
878f7045 GW |
199 | dump_hdr->queue_index = skbdesc->entry->queue->qid; |
200 | dump_hdr->entry_index = skbdesc->entry->entry_idx; | |
4d8dd66c ID |
201 | dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec); |
202 | dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec); | |
203 | ||
fd76f148 GW |
204 | if (!(skbdesc->flags & SKBDESC_DESC_IN_SKB)) |
205 | memcpy(skb_put(skbcopy, skbdesc->desc_len), skbdesc->desc, | |
206 | skbdesc->desc_len); | |
d56d453a | 207 | memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len); |
4d8dd66c ID |
208 | |
209 | skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy); | |
210 | wake_up_interruptible(&intf->frame_dump_waitqueue); | |
211 | ||
212 | /* | |
213 | * Verify that the file has not been closed while we were working. | |
214 | */ | |
215 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
216 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
217 | } | |
b4df4708 | 218 | EXPORT_SYMBOL_GPL(rt2x00debug_dump_frame); |
4d8dd66c | 219 | |
95ea3627 ID |
220 | static int rt2x00debug_file_open(struct inode *inode, struct file *file) |
221 | { | |
222 | struct rt2x00debug_intf *intf = inode->i_private; | |
223 | ||
224 | file->private_data = inode->i_private; | |
225 | ||
226 | if (!try_module_get(intf->debug->owner)) | |
227 | return -EBUSY; | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
232 | static int rt2x00debug_file_release(struct inode *inode, struct file *file) | |
233 | { | |
234 | struct rt2x00debug_intf *intf = file->private_data; | |
235 | ||
236 | module_put(intf->debug->owner); | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
181d6902 | 241 | static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
242 | { |
243 | struct rt2x00debug_intf *intf = inode->i_private; | |
244 | int retval; | |
245 | ||
246 | retval = rt2x00debug_file_open(inode, file); | |
247 | if (retval) | |
248 | return retval; | |
249 | ||
250 | if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) { | |
251 | rt2x00debug_file_release(inode, file); | |
252 | return -EBUSY; | |
253 | } | |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
181d6902 | 258 | static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
259 | { |
260 | struct rt2x00debug_intf *intf = inode->i_private; | |
261 | ||
262 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
263 | ||
264 | clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags); | |
265 | ||
266 | return rt2x00debug_file_release(inode, file); | |
267 | } | |
268 | ||
181d6902 ID |
269 | static ssize_t rt2x00debug_read_queue_dump(struct file *file, |
270 | char __user *buf, | |
271 | size_t length, | |
272 | loff_t *offset) | |
4d8dd66c ID |
273 | { |
274 | struct rt2x00debug_intf *intf = file->private_data; | |
275 | struct sk_buff *skb; | |
276 | size_t status; | |
277 | int retval; | |
278 | ||
279 | if (file->f_flags & O_NONBLOCK) | |
280 | return -EAGAIN; | |
281 | ||
282 | retval = | |
283 | wait_event_interruptible(intf->frame_dump_waitqueue, | |
284 | (skb = | |
285 | skb_dequeue(&intf->frame_dump_skbqueue))); | |
286 | if (retval) | |
287 | return retval; | |
288 | ||
c8e49556 | 289 | status = min_t(size_t, skb->len, length); |
4d8dd66c ID |
290 | if (copy_to_user(buf, skb->data, status)) { |
291 | status = -EFAULT; | |
292 | goto exit; | |
293 | } | |
294 | ||
295 | *offset += status; | |
296 | ||
297 | exit: | |
298 | kfree_skb(skb); | |
299 | ||
300 | return status; | |
301 | } | |
302 | ||
181d6902 | 303 | static unsigned int rt2x00debug_poll_queue_dump(struct file *file, |
55887511 | 304 | poll_table *wait) |
4d8dd66c ID |
305 | { |
306 | struct rt2x00debug_intf *intf = file->private_data; | |
307 | ||
308 | poll_wait(file, &intf->frame_dump_waitqueue, wait); | |
309 | ||
310 | if (!skb_queue_empty(&intf->frame_dump_skbqueue)) | |
311 | return POLLOUT | POLLWRNORM; | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
181d6902 | 316 | static const struct file_operations rt2x00debug_fop_queue_dump = { |
4d8dd66c | 317 | .owner = THIS_MODULE, |
181d6902 ID |
318 | .read = rt2x00debug_read_queue_dump, |
319 | .poll = rt2x00debug_poll_queue_dump, | |
320 | .open = rt2x00debug_open_queue_dump, | |
321 | .release = rt2x00debug_release_queue_dump, | |
6038f373 | 322 | .llseek = default_llseek, |
4d8dd66c ID |
323 | }; |
324 | ||
68598d29 ID |
325 | static ssize_t rt2x00debug_read_queue_stats(struct file *file, |
326 | char __user *buf, | |
327 | size_t length, | |
328 | loff_t *offset) | |
329 | { | |
330 | struct rt2x00debug_intf *intf = file->private_data; | |
331 | struct data_queue *queue; | |
5f46c4d0 | 332 | unsigned long irqflags; |
68598d29 ID |
333 | unsigned int lines = 1 + intf->rt2x00dev->data_queues; |
334 | size_t size; | |
335 | char *data; | |
336 | char *temp; | |
337 | ||
338 | if (*offset) | |
339 | return 0; | |
340 | ||
baeb2ffa | 341 | data = kcalloc(lines, MAX_LINE_LENGTH, GFP_KERNEL); |
68598d29 ID |
342 | if (!data) |
343 | return -ENOMEM; | |
344 | ||
345 | temp = data + | |
0b7fde54 | 346 | sprintf(data, "qid\tflags\t\tcount\tlimit\tlength\tindex\tdma done\tdone\n"); |
68598d29 ID |
347 | |
348 | queue_for_each(intf->rt2x00dev, queue) { | |
813f0339 | 349 | spin_lock_irqsave(&queue->index_lock, irqflags); |
68598d29 | 350 | |
0b7fde54 ID |
351 | temp += sprintf(temp, "%d\t0x%.8x\t%d\t%d\t%d\t%d\t%d\t\t%d\n", |
352 | queue->qid, (unsigned int)queue->flags, | |
68598d29 ID |
353 | queue->count, queue->limit, queue->length, |
354 | queue->index[Q_INDEX], | |
652a9dd2 | 355 | queue->index[Q_INDEX_DMA_DONE], |
54e34fbb | 356 | queue->index[Q_INDEX_DONE]); |
68598d29 | 357 | |
813f0339 | 358 | spin_unlock_irqrestore(&queue->index_lock, irqflags); |
68598d29 ID |
359 | } |
360 | ||
361 | size = strlen(data); | |
362 | size = min(size, length); | |
363 | ||
364 | if (copy_to_user(buf, data, size)) { | |
365 | kfree(data); | |
366 | return -EFAULT; | |
367 | } | |
368 | ||
369 | kfree(data); | |
370 | ||
371 | *offset += size; | |
372 | return size; | |
373 | } | |
374 | ||
375 | static const struct file_operations rt2x00debug_fop_queue_stats = { | |
376 | .owner = THIS_MODULE, | |
377 | .read = rt2x00debug_read_queue_stats, | |
378 | .open = rt2x00debug_file_open, | |
379 | .release = rt2x00debug_file_release, | |
6038f373 | 380 | .llseek = default_llseek, |
68598d29 ID |
381 | }; |
382 | ||
2bb057d0 ID |
383 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
384 | static ssize_t rt2x00debug_read_crypto_stats(struct file *file, | |
385 | char __user *buf, | |
386 | size_t length, | |
387 | loff_t *offset) | |
388 | { | |
389 | struct rt2x00debug_intf *intf = file->private_data; | |
030bda0d | 390 | static const char * const name[] = { "WEP64", "WEP128", "TKIP", "AES" }; |
2bb057d0 ID |
391 | char *data; |
392 | char *temp; | |
393 | size_t size; | |
394 | unsigned int i; | |
395 | ||
396 | if (*offset) | |
397 | return 0; | |
398 | ||
55887511 | 399 | data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL); |
2bb057d0 ID |
400 | if (!data) |
401 | return -ENOMEM; | |
402 | ||
403 | temp = data; | |
404 | temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n"); | |
405 | ||
406 | for (i = 0; i < CIPHER_MAX; i++) { | |
407 | temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i], | |
408 | intf->crypto_stats[i].success, | |
409 | intf->crypto_stats[i].icv_error, | |
410 | intf->crypto_stats[i].mic_error, | |
411 | intf->crypto_stats[i].key_error); | |
412 | } | |
413 | ||
414 | size = strlen(data); | |
415 | size = min(size, length); | |
416 | ||
417 | if (copy_to_user(buf, data, size)) { | |
418 | kfree(data); | |
419 | return -EFAULT; | |
420 | } | |
421 | ||
422 | kfree(data); | |
423 | ||
424 | *offset += size; | |
425 | return size; | |
426 | } | |
427 | ||
428 | static const struct file_operations rt2x00debug_fop_crypto_stats = { | |
429 | .owner = THIS_MODULE, | |
430 | .read = rt2x00debug_read_crypto_stats, | |
431 | .open = rt2x00debug_file_open, | |
432 | .release = rt2x00debug_file_release, | |
6038f373 | 433 | .llseek = default_llseek, |
2bb057d0 ID |
434 | }; |
435 | #endif | |
436 | ||
95ea3627 ID |
437 | #define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \ |
438 | static ssize_t rt2x00debug_read_##__name(struct file *file, \ | |
439 | char __user *buf, \ | |
440 | size_t length, \ | |
441 | loff_t *offset) \ | |
442 | { \ | |
91921a4e | 443 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
444 | const struct rt2x00debug *debug = intf->debug; \ |
445 | char line[16]; \ | |
446 | size_t size; \ | |
743b97ca | 447 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
448 | __type value; \ |
449 | \ | |
450 | if (*offset) \ | |
451 | return 0; \ | |
452 | \ | |
743b97ca | 453 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
454 | return -EINVAL; \ |
455 | \ | |
abd2fdb4 ID |
456 | index += (debug->__name.word_base / \ |
457 | debug->__name.word_size); \ | |
458 | \ | |
743b97ca ID |
459 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
460 | index *= debug->__name.word_size; \ | |
461 | \ | |
743b97ca | 462 | debug->__name.read(intf->rt2x00dev, index, &value); \ |
95ea3627 ID |
463 | \ |
464 | size = sprintf(line, __format, value); \ | |
465 | \ | |
466 | if (copy_to_user(buf, line, size)) \ | |
467 | return -EFAULT; \ | |
468 | \ | |
469 | *offset += size; \ | |
470 | return size; \ | |
471 | } | |
472 | ||
473 | #define RT2X00DEBUGFS_OPS_WRITE(__name, __type) \ | |
474 | static ssize_t rt2x00debug_write_##__name(struct file *file, \ | |
475 | const char __user *buf,\ | |
476 | size_t length, \ | |
477 | loff_t *offset) \ | |
478 | { \ | |
91921a4e | 479 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
480 | const struct rt2x00debug *debug = intf->debug; \ |
481 | char line[16]; \ | |
482 | size_t size; \ | |
743b97ca | 483 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
484 | __type value; \ |
485 | \ | |
486 | if (*offset) \ | |
487 | return 0; \ | |
488 | \ | |
743b97ca | 489 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
490 | return -EINVAL; \ |
491 | \ | |
f8d8b7a1 AP |
492 | if (length > sizeof(line)) \ |
493 | return -EINVAL; \ | |
494 | \ | |
95ea3627 ID |
495 | if (copy_from_user(line, buf, length)) \ |
496 | return -EFAULT; \ | |
497 | \ | |
498 | size = strlen(line); \ | |
499 | value = simple_strtoul(line, NULL, 0); \ | |
500 | \ | |
abd2fdb4 ID |
501 | index += (debug->__name.word_base / \ |
502 | debug->__name.word_size); \ | |
503 | \ | |
743b97ca ID |
504 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
505 | index *= debug->__name.word_size; \ | |
506 | \ | |
743b97ca | 507 | debug->__name.write(intf->rt2x00dev, index, value); \ |
95ea3627 ID |
508 | \ |
509 | *offset += size; \ | |
510 | return size; \ | |
511 | } | |
512 | ||
513 | #define RT2X00DEBUGFS_OPS(__name, __format, __type) \ | |
514 | RT2X00DEBUGFS_OPS_READ(__name, __format, __type); \ | |
515 | RT2X00DEBUGFS_OPS_WRITE(__name, __type); \ | |
516 | \ | |
517 | static const struct file_operations rt2x00debug_fop_##__name = {\ | |
518 | .owner = THIS_MODULE, \ | |
519 | .read = rt2x00debug_read_##__name, \ | |
520 | .write = rt2x00debug_write_##__name, \ | |
521 | .open = rt2x00debug_file_open, \ | |
522 | .release = rt2x00debug_file_release, \ | |
2b18ab36 | 523 | .llseek = generic_file_llseek, \ |
95ea3627 ID |
524 | }; |
525 | ||
526 | RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32); | |
527 | RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); | |
528 | RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8); | |
529 | RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32); | |
f2bd7f16 | 530 | RT2X00DEBUGFS_OPS(rfcsr, "0x%.2x\n", u8); |
95ea3627 | 531 | |
643b2521 ID |
532 | static ssize_t rt2x00debug_read_dev_flags(struct file *file, |
533 | char __user *buf, | |
534 | size_t length, | |
535 | loff_t *offset) | |
536 | { | |
537 | struct rt2x00debug_intf *intf = file->private_data; | |
538 | char line[16]; | |
539 | size_t size; | |
540 | ||
541 | if (*offset) | |
542 | return 0; | |
543 | ||
544 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags); | |
545 | ||
546 | if (copy_to_user(buf, line, size)) | |
547 | return -EFAULT; | |
548 | ||
549 | *offset += size; | |
550 | return size; | |
551 | } | |
552 | ||
553 | static const struct file_operations rt2x00debug_fop_dev_flags = { | |
554 | .owner = THIS_MODULE, | |
555 | .read = rt2x00debug_read_dev_flags, | |
556 | .open = rt2x00debug_file_open, | |
557 | .release = rt2x00debug_file_release, | |
6038f373 | 558 | .llseek = default_llseek, |
643b2521 ID |
559 | }; |
560 | ||
7dab73b3 ID |
561 | static ssize_t rt2x00debug_read_cap_flags(struct file *file, |
562 | char __user *buf, | |
563 | size_t length, | |
564 | loff_t *offset) | |
565 | { | |
566 | struct rt2x00debug_intf *intf = file->private_data; | |
567 | char line[16]; | |
568 | size_t size; | |
569 | ||
570 | if (*offset) | |
571 | return 0; | |
572 | ||
573 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->cap_flags); | |
574 | ||
575 | if (copy_to_user(buf, line, size)) | |
576 | return -EFAULT; | |
577 | ||
578 | *offset += size; | |
579 | return size; | |
580 | } | |
581 | ||
582 | static const struct file_operations rt2x00debug_fop_cap_flags = { | |
583 | .owner = THIS_MODULE, | |
584 | .read = rt2x00debug_read_cap_flags, | |
585 | .open = rt2x00debug_file_open, | |
586 | .release = rt2x00debug_file_release, | |
587 | .llseek = default_llseek, | |
588 | }; | |
589 | ||
95ea3627 ID |
590 | static struct dentry *rt2x00debug_create_file_driver(const char *name, |
591 | struct rt2x00debug_intf | |
592 | *intf, | |
593 | struct debugfs_blob_wrapper | |
594 | *blob) | |
595 | { | |
596 | char *data; | |
597 | ||
68598d29 | 598 | data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
599 | if (!data) |
600 | return NULL; | |
601 | ||
602 | blob->data = data; | |
860559fe ID |
603 | data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name); |
604 | data += sprintf(data, "version:\t%s\n", DRV_VERSION); | |
95ea3627 ID |
605 | blob->size = strlen(blob->data); |
606 | ||
d2b69071 | 607 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
608 | } |
609 | ||
610 | static struct dentry *rt2x00debug_create_file_chipset(const char *name, | |
611 | struct rt2x00debug_intf | |
612 | *intf, | |
613 | struct | |
614 | debugfs_blob_wrapper | |
615 | *blob) | |
616 | { | |
617 | const struct rt2x00debug *debug = intf->debug; | |
618 | char *data; | |
619 | ||
f2bd7f16 | 620 | data = kzalloc(9 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
621 | if (!data) |
622 | return NULL; | |
623 | ||
3e34c6dc | 624 | blob->data = data; |
860559fe ID |
625 | data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt); |
626 | data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf); | |
49e721ec | 627 | data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev); |
22c96c28 | 628 | data += sprintf(data, "\n"); |
860559fe | 629 | data += sprintf(data, "register\tbase\twords\twordsize\n"); |
f2efd20f AA |
630 | #define RT2X00DEBUGFS_SPRINTF_REGISTER(__name) \ |
631 | { \ | |
632 | if(debug->__name.read) \ | |
633 | data += sprintf(data, __stringify(__name) \ | |
634 | "\t%d\t%d\t%d\n", \ | |
635 | debug->__name.word_base, \ | |
636 | debug->__name.word_count, \ | |
637 | debug->__name.word_size); \ | |
638 | } | |
639 | RT2X00DEBUGFS_SPRINTF_REGISTER(csr); | |
640 | RT2X00DEBUGFS_SPRINTF_REGISTER(eeprom); | |
641 | RT2X00DEBUGFS_SPRINTF_REGISTER(bbp); | |
642 | RT2X00DEBUGFS_SPRINTF_REGISTER(rf); | |
f2bd7f16 | 643 | RT2X00DEBUGFS_SPRINTF_REGISTER(rfcsr); |
f2efd20f AA |
644 | #undef RT2X00DEBUGFS_SPRINTF_REGISTER |
645 | ||
3e34c6dc | 646 | blob->size = strlen(blob->data); |
95ea3627 | 647 | |
d2b69071 | 648 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
649 | } |
650 | ||
651 | void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) | |
652 | { | |
653 | const struct rt2x00debug *debug = rt2x00dev->ops->debugfs; | |
654 | struct rt2x00debug_intf *intf; | |
655 | ||
656 | intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL); | |
657 | if (!intf) { | |
ec9c4989 | 658 | rt2x00_err(rt2x00dev, "Failed to allocate debug handler\n"); |
95ea3627 ID |
659 | return; |
660 | } | |
661 | ||
662 | intf->debug = debug; | |
663 | intf->rt2x00dev = rt2x00dev; | |
664 | rt2x00dev->debugfs_intf = intf; | |
665 | ||
666 | intf->driver_folder = | |
667 | debugfs_create_dir(intf->rt2x00dev->ops->name, | |
668 | rt2x00dev->hw->wiphy->debugfsdir); | |
cfa3fa40 | 669 | if (IS_ERR(intf->driver_folder) || !intf->driver_folder) |
95ea3627 ID |
670 | goto exit; |
671 | ||
672 | intf->driver_entry = | |
673 | rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob); | |
cfa3fa40 | 674 | if (IS_ERR(intf->driver_entry) || !intf->driver_entry) |
95ea3627 ID |
675 | goto exit; |
676 | ||
677 | intf->chipset_entry = | |
678 | rt2x00debug_create_file_chipset("chipset", | |
679 | intf, &intf->chipset_blob); | |
cfa3fa40 | 680 | if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry) |
95ea3627 ID |
681 | goto exit; |
682 | ||
d2b69071 | 683 | intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR, |
643b2521 ID |
684 | intf->driver_folder, intf, |
685 | &rt2x00debug_fop_dev_flags); | |
cfa3fa40 | 686 | if (IS_ERR(intf->dev_flags) || !intf->dev_flags) |
643b2521 ID |
687 | goto exit; |
688 | ||
7dab73b3 ID |
689 | intf->cap_flags = debugfs_create_file("cap_flags", S_IRUSR, |
690 | intf->driver_folder, intf, | |
691 | &rt2x00debug_fop_cap_flags); | |
692 | if (IS_ERR(intf->cap_flags) || !intf->cap_flags) | |
693 | goto exit; | |
694 | ||
91921a4e ID |
695 | intf->register_folder = |
696 | debugfs_create_dir("register", intf->driver_folder); | |
cfa3fa40 | 697 | if (IS_ERR(intf->register_folder) || !intf->register_folder) |
91921a4e ID |
698 | goto exit; |
699 | ||
f2efd20f AA |
700 | #define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ |
701 | ({ \ | |
702 | if(debug->__name.read) { \ | |
703 | (__intf)->__name##_off_entry = \ | |
704 | debugfs_create_u32(__stringify(__name) "_offset", \ | |
705 | S_IRUSR | S_IWUSR, \ | |
706 | (__intf)->register_folder, \ | |
707 | &(__intf)->offset_##__name); \ | |
708 | if (IS_ERR((__intf)->__name##_off_entry) \ | |
709 | || !(__intf)->__name##_off_entry) \ | |
710 | goto exit; \ | |
711 | \ | |
712 | (__intf)->__name##_val_entry = \ | |
713 | debugfs_create_file(__stringify(__name) "_value", \ | |
714 | S_IRUSR | S_IWUSR, \ | |
715 | (__intf)->register_folder, \ | |
716 | (__intf), &rt2x00debug_fop_##__name); \ | |
717 | if (IS_ERR((__intf)->__name##_val_entry) \ | |
718 | || !(__intf)->__name##_val_entry) \ | |
719 | goto exit; \ | |
720 | } \ | |
95ea3627 ID |
721 | }) |
722 | ||
91921a4e ID |
723 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr); |
724 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom); | |
725 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp); | |
726 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf); | |
f2bd7f16 | 727 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rfcsr); |
95ea3627 | 728 | |
91921a4e | 729 | #undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY |
95ea3627 | 730 | |
68598d29 ID |
731 | intf->queue_folder = |
732 | debugfs_create_dir("queue", intf->driver_folder); | |
cfa3fa40 | 733 | if (IS_ERR(intf->queue_folder) || !intf->queue_folder) |
4d8dd66c ID |
734 | goto exit; |
735 | ||
68598d29 | 736 | intf->queue_frame_dump_entry = |
d2b69071 | 737 | debugfs_create_file("dump", S_IRUSR, intf->queue_folder, |
181d6902 | 738 | intf, &rt2x00debug_fop_queue_dump); |
cfa3fa40 Z |
739 | if (IS_ERR(intf->queue_frame_dump_entry) |
740 | || !intf->queue_frame_dump_entry) | |
4d8dd66c ID |
741 | goto exit; |
742 | ||
743 | skb_queue_head_init(&intf->frame_dump_skbqueue); | |
744 | init_waitqueue_head(&intf->frame_dump_waitqueue); | |
745 | ||
68598d29 | 746 | intf->queue_stats_entry = |
d2b69071 | 747 | debugfs_create_file("queue", S_IRUSR, intf->queue_folder, |
68598d29 ID |
748 | intf, &rt2x00debug_fop_queue_stats); |
749 | ||
2bb057d0 | 750 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
7b8a00dc | 751 | if (rt2x00_has_cap_hw_crypto(rt2x00dev)) |
2bb057d0 ID |
752 | intf->crypto_stats_entry = |
753 | debugfs_create_file("crypto", S_IRUGO, intf->queue_folder, | |
754 | intf, &rt2x00debug_fop_crypto_stats); | |
755 | #endif | |
756 | ||
95ea3627 ID |
757 | return; |
758 | ||
759 | exit: | |
760 | rt2x00debug_deregister(rt2x00dev); | |
ec9c4989 | 761 | rt2x00_err(rt2x00dev, "Failed to register debug handler\n"); |
95ea3627 ID |
762 | } |
763 | ||
764 | void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) | |
765 | { | |
4d8dd66c | 766 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; |
95ea3627 ID |
767 | |
768 | if (unlikely(!intf)) | |
769 | return; | |
770 | ||
4d8dd66c ID |
771 | skb_queue_purge(&intf->frame_dump_skbqueue); |
772 | ||
2bb057d0 ID |
773 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
774 | debugfs_remove(intf->crypto_stats_entry); | |
775 | #endif | |
68598d29 ID |
776 | debugfs_remove(intf->queue_stats_entry); |
777 | debugfs_remove(intf->queue_frame_dump_entry); | |
778 | debugfs_remove(intf->queue_folder); | |
f2bd7f16 AA |
779 | debugfs_remove(intf->rfcsr_val_entry); |
780 | debugfs_remove(intf->rfcsr_off_entry); | |
95ea3627 ID |
781 | debugfs_remove(intf->rf_val_entry); |
782 | debugfs_remove(intf->rf_off_entry); | |
783 | debugfs_remove(intf->bbp_val_entry); | |
784 | debugfs_remove(intf->bbp_off_entry); | |
785 | debugfs_remove(intf->eeprom_val_entry); | |
786 | debugfs_remove(intf->eeprom_off_entry); | |
787 | debugfs_remove(intf->csr_val_entry); | |
788 | debugfs_remove(intf->csr_off_entry); | |
91921a4e | 789 | debugfs_remove(intf->register_folder); |
643b2521 | 790 | debugfs_remove(intf->dev_flags); |
7dab73b3 | 791 | debugfs_remove(intf->cap_flags); |
95ea3627 ID |
792 | debugfs_remove(intf->chipset_entry); |
793 | debugfs_remove(intf->driver_entry); | |
794 | debugfs_remove(intf->driver_folder); | |
795 | kfree(intf->chipset_blob.data); | |
796 | kfree(intf->driver_blob.data); | |
797 | kfree(intf); | |
798 | ||
799 | rt2x00dev->debugfs_intf = NULL; | |
800 | } |