Commit | Line | Data |
---|---|---|
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 | |
7dab73b3 ID |
66 | * - device state flags file |
67 | * - device capability flags file | |
91921a4e ID |
68 | * - register folder |
69 | * - csr offset/value files | |
70 | * - eeprom offset/value files | |
71 | * - bbp offset/value files | |
72 | * - rf offset/value files | |
f2bd7f16 | 73 | * - rfcsr offset/value files |
68598d29 | 74 | * - queue folder |
4d8dd66c | 75 | * - frame dump file |
68598d29 | 76 | * - queue stats file |
2bb057d0 | 77 | * - crypto stats file |
95ea3627 ID |
78 | */ |
79 | struct dentry *driver_folder; | |
80 | struct dentry *driver_entry; | |
81 | struct dentry *chipset_entry; | |
643b2521 | 82 | struct dentry *dev_flags; |
7dab73b3 | 83 | struct dentry *cap_flags; |
91921a4e | 84 | struct dentry *register_folder; |
95ea3627 ID |
85 | struct dentry *csr_off_entry; |
86 | struct dentry *csr_val_entry; | |
87 | struct dentry *eeprom_off_entry; | |
88 | struct dentry *eeprom_val_entry; | |
89 | struct dentry *bbp_off_entry; | |
90 | struct dentry *bbp_val_entry; | |
91 | struct dentry *rf_off_entry; | |
92 | struct dentry *rf_val_entry; | |
f2bd7f16 AA |
93 | struct dentry *rfcsr_off_entry; |
94 | struct dentry *rfcsr_val_entry; | |
68598d29 ID |
95 | struct dentry *queue_folder; |
96 | struct dentry *queue_frame_dump_entry; | |
97 | struct dentry *queue_stats_entry; | |
2bb057d0 | 98 | struct dentry *crypto_stats_entry; |
4d8dd66c ID |
99 | |
100 | /* | |
101 | * The frame dump file only allows a single reader, | |
102 | * so we need to store the current state here. | |
103 | */ | |
104 | unsigned long frame_dump_flags; | |
105 | #define FRAME_DUMP_FILE_OPEN 1 | |
106 | ||
107 | /* | |
108 | * We queue each frame before dumping it to the user, | |
109 | * per read command we will pass a single skb structure | |
110 | * so we should be prepared to queue multiple sk buffers | |
111 | * before sending it to userspace. | |
112 | */ | |
113 | struct sk_buff_head frame_dump_skbqueue; | |
114 | wait_queue_head_t frame_dump_waitqueue; | |
95ea3627 | 115 | |
2bb057d0 ID |
116 | /* |
117 | * HW crypto statistics. | |
3ad2f3fb | 118 | * All statistics are stored separately per cipher type. |
2bb057d0 ID |
119 | */ |
120 | struct rt2x00debug_crypto crypto_stats[CIPHER_MAX]; | |
121 | ||
95ea3627 ID |
122 | /* |
123 | * Driver and chipset files will use a data buffer | |
124 | * that has been created in advance. This will simplify | |
125 | * the code since we can use the debugfs functions. | |
126 | */ | |
127 | struct debugfs_blob_wrapper driver_blob; | |
128 | struct debugfs_blob_wrapper chipset_blob; | |
129 | ||
130 | /* | |
131 | * Requested offset for each register type. | |
132 | */ | |
133 | unsigned int offset_csr; | |
134 | unsigned int offset_eeprom; | |
135 | unsigned int offset_bbp; | |
136 | unsigned int offset_rf; | |
f2bd7f16 | 137 | unsigned int offset_rfcsr; |
95ea3627 ID |
138 | }; |
139 | ||
2bb057d0 | 140 | void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, |
84e3196f | 141 | struct rxdone_entry_desc *rxdesc) |
2bb057d0 ID |
142 | { |
143 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
84e3196f ID |
144 | enum cipher cipher = rxdesc->cipher; |
145 | enum rx_crypto status = rxdesc->cipher_status; | |
2bb057d0 ID |
146 | |
147 | if (cipher == CIPHER_TKIP_NO_MIC) | |
148 | cipher = CIPHER_TKIP; | |
a6c67339 | 149 | if (cipher == CIPHER_NONE || cipher >= CIPHER_MAX) |
2bb057d0 ID |
150 | return; |
151 | ||
152 | /* Remove CIPHER_NONE index */ | |
153 | cipher--; | |
154 | ||
155 | intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS); | |
156 | intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV); | |
157 | intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC); | |
158 | intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY); | |
159 | } | |
160 | ||
4d8dd66c | 161 | void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, |
5a6e5999 | 162 | enum rt2x00_dump_type type, struct sk_buff *skb) |
4d8dd66c ID |
163 | { |
164 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; | |
878f7045 | 165 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); |
4d8dd66c ID |
166 | struct sk_buff *skbcopy; |
167 | struct rt2x00dump_hdr *dump_hdr; | |
168 | struct timeval timestamp; | |
fd76f148 | 169 | u32 data_len; |
4d8dd66c | 170 | |
e2f8c875 | 171 | if (likely(!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))) |
4d8dd66c ID |
172 | return; |
173 | ||
e2f8c875 HS |
174 | do_gettimeofday(×tamp); |
175 | ||
4d8dd66c | 176 | if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) { |
ec9c4989 | 177 | rt2x00_dbg(rt2x00dev, "txrx dump queue length exceeded\n"); |
4d8dd66c ID |
178 | return; |
179 | } | |
180 | ||
fd76f148 GW |
181 | data_len = skb->len; |
182 | if (skbdesc->flags & SKBDESC_DESC_IN_SKB) | |
183 | data_len -= skbdesc->desc_len; | |
184 | ||
185 | skbcopy = alloc_skb(sizeof(*dump_hdr) + skbdesc->desc_len + data_len, | |
4d8dd66c ID |
186 | GFP_ATOMIC); |
187 | if (!skbcopy) { | |
ec9c4989 | 188 | rt2x00_dbg(rt2x00dev, "Failed to copy skb for dump\n"); |
4d8dd66c ID |
189 | return; |
190 | } | |
191 | ||
192 | dump_hdr = (struct rt2x00dump_hdr *)skb_put(skbcopy, sizeof(*dump_hdr)); | |
193 | dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION); | |
194 | dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr)); | |
878f7045 | 195 | dump_hdr->desc_length = cpu_to_le32(skbdesc->desc_len); |
fd76f148 | 196 | dump_hdr->data_length = cpu_to_le32(data_len); |
4d8dd66c ID |
197 | dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt); |
198 | dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf); | |
49e721ec | 199 | dump_hdr->chip_rev = cpu_to_le16(rt2x00dev->chip.rev); |
5a6e5999 | 200 | dump_hdr->type = cpu_to_le16(type); |
878f7045 GW |
201 | dump_hdr->queue_index = skbdesc->entry->queue->qid; |
202 | dump_hdr->entry_index = skbdesc->entry->entry_idx; | |
4d8dd66c ID |
203 | dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec); |
204 | dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec); | |
205 | ||
fd76f148 GW |
206 | if (!(skbdesc->flags & SKBDESC_DESC_IN_SKB)) |
207 | memcpy(skb_put(skbcopy, skbdesc->desc_len), skbdesc->desc, | |
208 | skbdesc->desc_len); | |
d56d453a | 209 | memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len); |
4d8dd66c ID |
210 | |
211 | skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy); | |
212 | wake_up_interruptible(&intf->frame_dump_waitqueue); | |
213 | ||
214 | /* | |
215 | * Verify that the file has not been closed while we were working. | |
216 | */ | |
217 | if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) | |
218 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
219 | } | |
b4df4708 | 220 | EXPORT_SYMBOL_GPL(rt2x00debug_dump_frame); |
4d8dd66c | 221 | |
95ea3627 ID |
222 | static int rt2x00debug_file_open(struct inode *inode, struct file *file) |
223 | { | |
224 | struct rt2x00debug_intf *intf = inode->i_private; | |
225 | ||
226 | file->private_data = inode->i_private; | |
227 | ||
228 | if (!try_module_get(intf->debug->owner)) | |
229 | return -EBUSY; | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | static int rt2x00debug_file_release(struct inode *inode, struct file *file) | |
235 | { | |
236 | struct rt2x00debug_intf *intf = file->private_data; | |
237 | ||
238 | module_put(intf->debug->owner); | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
181d6902 | 243 | static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
244 | { |
245 | struct rt2x00debug_intf *intf = inode->i_private; | |
246 | int retval; | |
247 | ||
248 | retval = rt2x00debug_file_open(inode, file); | |
249 | if (retval) | |
250 | return retval; | |
251 | ||
252 | if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) { | |
253 | rt2x00debug_file_release(inode, file); | |
254 | return -EBUSY; | |
255 | } | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
181d6902 | 260 | static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file) |
4d8dd66c ID |
261 | { |
262 | struct rt2x00debug_intf *intf = inode->i_private; | |
263 | ||
264 | skb_queue_purge(&intf->frame_dump_skbqueue); | |
265 | ||
266 | clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags); | |
267 | ||
268 | return rt2x00debug_file_release(inode, file); | |
269 | } | |
270 | ||
181d6902 ID |
271 | static ssize_t rt2x00debug_read_queue_dump(struct file *file, |
272 | char __user *buf, | |
273 | size_t length, | |
274 | loff_t *offset) | |
4d8dd66c ID |
275 | { |
276 | struct rt2x00debug_intf *intf = file->private_data; | |
277 | struct sk_buff *skb; | |
278 | size_t status; | |
279 | int retval; | |
280 | ||
281 | if (file->f_flags & O_NONBLOCK) | |
282 | return -EAGAIN; | |
283 | ||
284 | retval = | |
285 | wait_event_interruptible(intf->frame_dump_waitqueue, | |
286 | (skb = | |
287 | skb_dequeue(&intf->frame_dump_skbqueue))); | |
288 | if (retval) | |
289 | return retval; | |
290 | ||
291 | status = min((size_t)skb->len, length); | |
292 | if (copy_to_user(buf, skb->data, status)) { | |
293 | status = -EFAULT; | |
294 | goto exit; | |
295 | } | |
296 | ||
297 | *offset += status; | |
298 | ||
299 | exit: | |
300 | kfree_skb(skb); | |
301 | ||
302 | return status; | |
303 | } | |
304 | ||
181d6902 | 305 | static unsigned int rt2x00debug_poll_queue_dump(struct file *file, |
55887511 | 306 | poll_table *wait) |
4d8dd66c ID |
307 | { |
308 | struct rt2x00debug_intf *intf = file->private_data; | |
309 | ||
310 | poll_wait(file, &intf->frame_dump_waitqueue, wait); | |
311 | ||
312 | if (!skb_queue_empty(&intf->frame_dump_skbqueue)) | |
313 | return POLLOUT | POLLWRNORM; | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
181d6902 | 318 | static const struct file_operations rt2x00debug_fop_queue_dump = { |
4d8dd66c | 319 | .owner = THIS_MODULE, |
181d6902 ID |
320 | .read = rt2x00debug_read_queue_dump, |
321 | .poll = rt2x00debug_poll_queue_dump, | |
322 | .open = rt2x00debug_open_queue_dump, | |
323 | .release = rt2x00debug_release_queue_dump, | |
6038f373 | 324 | .llseek = default_llseek, |
4d8dd66c ID |
325 | }; |
326 | ||
68598d29 ID |
327 | static ssize_t rt2x00debug_read_queue_stats(struct file *file, |
328 | char __user *buf, | |
329 | size_t length, | |
330 | loff_t *offset) | |
331 | { | |
332 | struct rt2x00debug_intf *intf = file->private_data; | |
333 | struct data_queue *queue; | |
5f46c4d0 | 334 | unsigned long irqflags; |
68598d29 ID |
335 | unsigned int lines = 1 + intf->rt2x00dev->data_queues; |
336 | size_t size; | |
337 | char *data; | |
338 | char *temp; | |
339 | ||
340 | if (*offset) | |
341 | return 0; | |
342 | ||
baeb2ffa | 343 | data = kcalloc(lines, MAX_LINE_LENGTH, GFP_KERNEL); |
68598d29 ID |
344 | if (!data) |
345 | return -ENOMEM; | |
346 | ||
347 | temp = data + | |
0b7fde54 | 348 | sprintf(data, "qid\tflags\t\tcount\tlimit\tlength\tindex\tdma done\tdone\n"); |
68598d29 ID |
349 | |
350 | queue_for_each(intf->rt2x00dev, queue) { | |
813f0339 | 351 | spin_lock_irqsave(&queue->index_lock, irqflags); |
68598d29 | 352 | |
0b7fde54 ID |
353 | temp += sprintf(temp, "%d\t0x%.8x\t%d\t%d\t%d\t%d\t%d\t\t%d\n", |
354 | queue->qid, (unsigned int)queue->flags, | |
68598d29 ID |
355 | queue->count, queue->limit, queue->length, |
356 | queue->index[Q_INDEX], | |
652a9dd2 | 357 | queue->index[Q_INDEX_DMA_DONE], |
54e34fbb | 358 | queue->index[Q_INDEX_DONE]); |
68598d29 | 359 | |
813f0339 | 360 | spin_unlock_irqrestore(&queue->index_lock, irqflags); |
68598d29 ID |
361 | } |
362 | ||
363 | size = strlen(data); | |
364 | size = min(size, length); | |
365 | ||
366 | if (copy_to_user(buf, data, size)) { | |
367 | kfree(data); | |
368 | return -EFAULT; | |
369 | } | |
370 | ||
371 | kfree(data); | |
372 | ||
373 | *offset += size; | |
374 | return size; | |
375 | } | |
376 | ||
377 | static const struct file_operations rt2x00debug_fop_queue_stats = { | |
378 | .owner = THIS_MODULE, | |
379 | .read = rt2x00debug_read_queue_stats, | |
380 | .open = rt2x00debug_file_open, | |
381 | .release = rt2x00debug_file_release, | |
6038f373 | 382 | .llseek = default_llseek, |
68598d29 ID |
383 | }; |
384 | ||
2bb057d0 ID |
385 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
386 | static ssize_t rt2x00debug_read_crypto_stats(struct file *file, | |
387 | char __user *buf, | |
388 | size_t length, | |
389 | loff_t *offset) | |
390 | { | |
391 | struct rt2x00debug_intf *intf = file->private_data; | |
030bda0d | 392 | static const char * const name[] = { "WEP64", "WEP128", "TKIP", "AES" }; |
2bb057d0 ID |
393 | char *data; |
394 | char *temp; | |
395 | size_t size; | |
396 | unsigned int i; | |
397 | ||
398 | if (*offset) | |
399 | return 0; | |
400 | ||
55887511 | 401 | data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL); |
2bb057d0 ID |
402 | if (!data) |
403 | return -ENOMEM; | |
404 | ||
405 | temp = data; | |
406 | temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n"); | |
407 | ||
408 | for (i = 0; i < CIPHER_MAX; i++) { | |
409 | temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i], | |
410 | intf->crypto_stats[i].success, | |
411 | intf->crypto_stats[i].icv_error, | |
412 | intf->crypto_stats[i].mic_error, | |
413 | intf->crypto_stats[i].key_error); | |
414 | } | |
415 | ||
416 | size = strlen(data); | |
417 | size = min(size, length); | |
418 | ||
419 | if (copy_to_user(buf, data, size)) { | |
420 | kfree(data); | |
421 | return -EFAULT; | |
422 | } | |
423 | ||
424 | kfree(data); | |
425 | ||
426 | *offset += size; | |
427 | return size; | |
428 | } | |
429 | ||
430 | static const struct file_operations rt2x00debug_fop_crypto_stats = { | |
431 | .owner = THIS_MODULE, | |
432 | .read = rt2x00debug_read_crypto_stats, | |
433 | .open = rt2x00debug_file_open, | |
434 | .release = rt2x00debug_file_release, | |
6038f373 | 435 | .llseek = default_llseek, |
2bb057d0 ID |
436 | }; |
437 | #endif | |
438 | ||
95ea3627 ID |
439 | #define RT2X00DEBUGFS_OPS_READ(__name, __format, __type) \ |
440 | static ssize_t rt2x00debug_read_##__name(struct file *file, \ | |
441 | char __user *buf, \ | |
442 | size_t length, \ | |
443 | loff_t *offset) \ | |
444 | { \ | |
91921a4e | 445 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
446 | const struct rt2x00debug *debug = intf->debug; \ |
447 | char line[16]; \ | |
448 | size_t size; \ | |
743b97ca | 449 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
450 | __type value; \ |
451 | \ | |
452 | if (*offset) \ | |
453 | return 0; \ | |
454 | \ | |
743b97ca | 455 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
456 | return -EINVAL; \ |
457 | \ | |
abd2fdb4 ID |
458 | index += (debug->__name.word_base / \ |
459 | debug->__name.word_size); \ | |
460 | \ | |
743b97ca ID |
461 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
462 | index *= debug->__name.word_size; \ | |
463 | \ | |
743b97ca | 464 | debug->__name.read(intf->rt2x00dev, index, &value); \ |
95ea3627 ID |
465 | \ |
466 | size = sprintf(line, __format, value); \ | |
467 | \ | |
468 | if (copy_to_user(buf, line, size)) \ | |
469 | return -EFAULT; \ | |
470 | \ | |
471 | *offset += size; \ | |
472 | return size; \ | |
473 | } | |
474 | ||
475 | #define RT2X00DEBUGFS_OPS_WRITE(__name, __type) \ | |
476 | static ssize_t rt2x00debug_write_##__name(struct file *file, \ | |
477 | const char __user *buf,\ | |
478 | size_t length, \ | |
479 | loff_t *offset) \ | |
480 | { \ | |
91921a4e | 481 | struct rt2x00debug_intf *intf = file->private_data; \ |
95ea3627 ID |
482 | const struct rt2x00debug *debug = intf->debug; \ |
483 | char line[16]; \ | |
484 | size_t size; \ | |
743b97ca | 485 | unsigned int index = intf->offset_##__name; \ |
95ea3627 ID |
486 | __type value; \ |
487 | \ | |
488 | if (*offset) \ | |
489 | return 0; \ | |
490 | \ | |
743b97ca | 491 | if (index >= debug->__name.word_count) \ |
95ea3627 ID |
492 | return -EINVAL; \ |
493 | \ | |
f8d8b7a1 APR |
494 | if (length > sizeof(line)) \ |
495 | return -EINVAL; \ | |
496 | \ | |
95ea3627 ID |
497 | if (copy_from_user(line, buf, length)) \ |
498 | return -EFAULT; \ | |
499 | \ | |
500 | size = strlen(line); \ | |
501 | value = simple_strtoul(line, NULL, 0); \ | |
502 | \ | |
abd2fdb4 ID |
503 | index += (debug->__name.word_base / \ |
504 | debug->__name.word_size); \ | |
505 | \ | |
743b97ca ID |
506 | if (debug->__name.flags & RT2X00DEBUGFS_OFFSET) \ |
507 | index *= debug->__name.word_size; \ | |
508 | \ | |
743b97ca | 509 | debug->__name.write(intf->rt2x00dev, index, value); \ |
95ea3627 ID |
510 | \ |
511 | *offset += size; \ | |
512 | return size; \ | |
513 | } | |
514 | ||
515 | #define RT2X00DEBUGFS_OPS(__name, __format, __type) \ | |
516 | RT2X00DEBUGFS_OPS_READ(__name, __format, __type); \ | |
517 | RT2X00DEBUGFS_OPS_WRITE(__name, __type); \ | |
518 | \ | |
519 | static const struct file_operations rt2x00debug_fop_##__name = {\ | |
520 | .owner = THIS_MODULE, \ | |
521 | .read = rt2x00debug_read_##__name, \ | |
522 | .write = rt2x00debug_write_##__name, \ | |
523 | .open = rt2x00debug_file_open, \ | |
524 | .release = rt2x00debug_file_release, \ | |
2b18ab36 | 525 | .llseek = generic_file_llseek, \ |
95ea3627 ID |
526 | }; |
527 | ||
528 | RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32); | |
529 | RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16); | |
530 | RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8); | |
531 | RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32); | |
f2bd7f16 | 532 | RT2X00DEBUGFS_OPS(rfcsr, "0x%.2x\n", u8); |
95ea3627 | 533 | |
643b2521 ID |
534 | static ssize_t rt2x00debug_read_dev_flags(struct file *file, |
535 | char __user *buf, | |
536 | size_t length, | |
537 | loff_t *offset) | |
538 | { | |
539 | struct rt2x00debug_intf *intf = file->private_data; | |
540 | char line[16]; | |
541 | size_t size; | |
542 | ||
543 | if (*offset) | |
544 | return 0; | |
545 | ||
546 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags); | |
547 | ||
548 | if (copy_to_user(buf, line, size)) | |
549 | return -EFAULT; | |
550 | ||
551 | *offset += size; | |
552 | return size; | |
553 | } | |
554 | ||
555 | static const struct file_operations rt2x00debug_fop_dev_flags = { | |
556 | .owner = THIS_MODULE, | |
557 | .read = rt2x00debug_read_dev_flags, | |
558 | .open = rt2x00debug_file_open, | |
559 | .release = rt2x00debug_file_release, | |
6038f373 | 560 | .llseek = default_llseek, |
643b2521 ID |
561 | }; |
562 | ||
7dab73b3 ID |
563 | static ssize_t rt2x00debug_read_cap_flags(struct file *file, |
564 | char __user *buf, | |
565 | size_t length, | |
566 | loff_t *offset) | |
567 | { | |
568 | struct rt2x00debug_intf *intf = file->private_data; | |
569 | char line[16]; | |
570 | size_t size; | |
571 | ||
572 | if (*offset) | |
573 | return 0; | |
574 | ||
575 | size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->cap_flags); | |
576 | ||
577 | if (copy_to_user(buf, line, size)) | |
578 | return -EFAULT; | |
579 | ||
580 | *offset += size; | |
581 | return size; | |
582 | } | |
583 | ||
584 | static const struct file_operations rt2x00debug_fop_cap_flags = { | |
585 | .owner = THIS_MODULE, | |
586 | .read = rt2x00debug_read_cap_flags, | |
587 | .open = rt2x00debug_file_open, | |
588 | .release = rt2x00debug_file_release, | |
589 | .llseek = default_llseek, | |
590 | }; | |
591 | ||
95ea3627 ID |
592 | static struct dentry *rt2x00debug_create_file_driver(const char *name, |
593 | struct rt2x00debug_intf | |
594 | *intf, | |
595 | struct debugfs_blob_wrapper | |
596 | *blob) | |
597 | { | |
598 | char *data; | |
599 | ||
68598d29 | 600 | data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
601 | if (!data) |
602 | return NULL; | |
603 | ||
604 | blob->data = data; | |
860559fe ID |
605 | data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name); |
606 | data += sprintf(data, "version:\t%s\n", DRV_VERSION); | |
95ea3627 ID |
607 | blob->size = strlen(blob->data); |
608 | ||
d2b69071 | 609 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
610 | } |
611 | ||
612 | static struct dentry *rt2x00debug_create_file_chipset(const char *name, | |
613 | struct rt2x00debug_intf | |
614 | *intf, | |
615 | struct | |
616 | debugfs_blob_wrapper | |
617 | *blob) | |
618 | { | |
619 | const struct rt2x00debug *debug = intf->debug; | |
620 | char *data; | |
621 | ||
f2bd7f16 | 622 | data = kzalloc(9 * MAX_LINE_LENGTH, GFP_KERNEL); |
95ea3627 ID |
623 | if (!data) |
624 | return NULL; | |
625 | ||
3e34c6dc | 626 | blob->data = data; |
860559fe ID |
627 | data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt); |
628 | data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf); | |
49e721ec | 629 | data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev); |
22c96c28 | 630 | data += sprintf(data, "\n"); |
860559fe | 631 | data += sprintf(data, "register\tbase\twords\twordsize\n"); |
f2efd20f AA |
632 | #define RT2X00DEBUGFS_SPRINTF_REGISTER(__name) \ |
633 | { \ | |
634 | if(debug->__name.read) \ | |
635 | data += sprintf(data, __stringify(__name) \ | |
636 | "\t%d\t%d\t%d\n", \ | |
637 | debug->__name.word_base, \ | |
638 | debug->__name.word_count, \ | |
639 | debug->__name.word_size); \ | |
640 | } | |
641 | RT2X00DEBUGFS_SPRINTF_REGISTER(csr); | |
642 | RT2X00DEBUGFS_SPRINTF_REGISTER(eeprom); | |
643 | RT2X00DEBUGFS_SPRINTF_REGISTER(bbp); | |
644 | RT2X00DEBUGFS_SPRINTF_REGISTER(rf); | |
f2bd7f16 | 645 | RT2X00DEBUGFS_SPRINTF_REGISTER(rfcsr); |
f2efd20f AA |
646 | #undef RT2X00DEBUGFS_SPRINTF_REGISTER |
647 | ||
3e34c6dc | 648 | blob->size = strlen(blob->data); |
95ea3627 | 649 | |
d2b69071 | 650 | return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); |
95ea3627 ID |
651 | } |
652 | ||
653 | void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) | |
654 | { | |
655 | const struct rt2x00debug *debug = rt2x00dev->ops->debugfs; | |
656 | struct rt2x00debug_intf *intf; | |
657 | ||
658 | intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL); | |
659 | if (!intf) { | |
ec9c4989 | 660 | rt2x00_err(rt2x00dev, "Failed to allocate debug handler\n"); |
95ea3627 ID |
661 | return; |
662 | } | |
663 | ||
664 | intf->debug = debug; | |
665 | intf->rt2x00dev = rt2x00dev; | |
666 | rt2x00dev->debugfs_intf = intf; | |
667 | ||
668 | intf->driver_folder = | |
669 | debugfs_create_dir(intf->rt2x00dev->ops->name, | |
670 | rt2x00dev->hw->wiphy->debugfsdir); | |
cfa3fa40 | 671 | if (IS_ERR(intf->driver_folder) || !intf->driver_folder) |
95ea3627 ID |
672 | goto exit; |
673 | ||
674 | intf->driver_entry = | |
675 | rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob); | |
cfa3fa40 | 676 | if (IS_ERR(intf->driver_entry) || !intf->driver_entry) |
95ea3627 ID |
677 | goto exit; |
678 | ||
679 | intf->chipset_entry = | |
680 | rt2x00debug_create_file_chipset("chipset", | |
681 | intf, &intf->chipset_blob); | |
cfa3fa40 | 682 | if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry) |
95ea3627 ID |
683 | goto exit; |
684 | ||
d2b69071 | 685 | intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR, |
643b2521 ID |
686 | intf->driver_folder, intf, |
687 | &rt2x00debug_fop_dev_flags); | |
cfa3fa40 | 688 | if (IS_ERR(intf->dev_flags) || !intf->dev_flags) |
643b2521 ID |
689 | goto exit; |
690 | ||
7dab73b3 ID |
691 | intf->cap_flags = debugfs_create_file("cap_flags", S_IRUSR, |
692 | intf->driver_folder, intf, | |
693 | &rt2x00debug_fop_cap_flags); | |
694 | if (IS_ERR(intf->cap_flags) || !intf->cap_flags) | |
695 | goto exit; | |
696 | ||
91921a4e ID |
697 | intf->register_folder = |
698 | debugfs_create_dir("register", intf->driver_folder); | |
cfa3fa40 | 699 | if (IS_ERR(intf->register_folder) || !intf->register_folder) |
91921a4e ID |
700 | goto exit; |
701 | ||
f2efd20f AA |
702 | #define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ |
703 | ({ \ | |
704 | if(debug->__name.read) { \ | |
705 | (__intf)->__name##_off_entry = \ | |
706 | debugfs_create_u32(__stringify(__name) "_offset", \ | |
707 | S_IRUSR | S_IWUSR, \ | |
708 | (__intf)->register_folder, \ | |
709 | &(__intf)->offset_##__name); \ | |
710 | if (IS_ERR((__intf)->__name##_off_entry) \ | |
711 | || !(__intf)->__name##_off_entry) \ | |
712 | goto exit; \ | |
713 | \ | |
714 | (__intf)->__name##_val_entry = \ | |
715 | debugfs_create_file(__stringify(__name) "_value", \ | |
716 | S_IRUSR | S_IWUSR, \ | |
717 | (__intf)->register_folder, \ | |
718 | (__intf), &rt2x00debug_fop_##__name); \ | |
719 | if (IS_ERR((__intf)->__name##_val_entry) \ | |
720 | || !(__intf)->__name##_val_entry) \ | |
721 | goto exit; \ | |
722 | } \ | |
95ea3627 ID |
723 | }) |
724 | ||
91921a4e ID |
725 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr); |
726 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom); | |
727 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp); | |
728 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf); | |
f2bd7f16 | 729 | RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rfcsr); |
95ea3627 | 730 | |
91921a4e | 731 | #undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY |
95ea3627 | 732 | |
68598d29 ID |
733 | intf->queue_folder = |
734 | debugfs_create_dir("queue", intf->driver_folder); | |
cfa3fa40 | 735 | if (IS_ERR(intf->queue_folder) || !intf->queue_folder) |
4d8dd66c ID |
736 | goto exit; |
737 | ||
68598d29 | 738 | intf->queue_frame_dump_entry = |
d2b69071 | 739 | debugfs_create_file("dump", S_IRUSR, intf->queue_folder, |
181d6902 | 740 | intf, &rt2x00debug_fop_queue_dump); |
cfa3fa40 Z |
741 | if (IS_ERR(intf->queue_frame_dump_entry) |
742 | || !intf->queue_frame_dump_entry) | |
4d8dd66c ID |
743 | goto exit; |
744 | ||
745 | skb_queue_head_init(&intf->frame_dump_skbqueue); | |
746 | init_waitqueue_head(&intf->frame_dump_waitqueue); | |
747 | ||
68598d29 | 748 | intf->queue_stats_entry = |
d2b69071 | 749 | debugfs_create_file("queue", S_IRUSR, intf->queue_folder, |
68598d29 ID |
750 | intf, &rt2x00debug_fop_queue_stats); |
751 | ||
2bb057d0 | 752 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
7b8a00dc | 753 | if (rt2x00_has_cap_hw_crypto(rt2x00dev)) |
2bb057d0 ID |
754 | intf->crypto_stats_entry = |
755 | debugfs_create_file("crypto", S_IRUGO, intf->queue_folder, | |
756 | intf, &rt2x00debug_fop_crypto_stats); | |
757 | #endif | |
758 | ||
95ea3627 ID |
759 | return; |
760 | ||
761 | exit: | |
762 | rt2x00debug_deregister(rt2x00dev); | |
ec9c4989 | 763 | rt2x00_err(rt2x00dev, "Failed to register debug handler\n"); |
95ea3627 ID |
764 | } |
765 | ||
766 | void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) | |
767 | { | |
4d8dd66c | 768 | struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf; |
95ea3627 ID |
769 | |
770 | if (unlikely(!intf)) | |
771 | return; | |
772 | ||
4d8dd66c ID |
773 | skb_queue_purge(&intf->frame_dump_skbqueue); |
774 | ||
2bb057d0 ID |
775 | #ifdef CONFIG_RT2X00_LIB_CRYPTO |
776 | debugfs_remove(intf->crypto_stats_entry); | |
777 | #endif | |
68598d29 ID |
778 | debugfs_remove(intf->queue_stats_entry); |
779 | debugfs_remove(intf->queue_frame_dump_entry); | |
780 | debugfs_remove(intf->queue_folder); | |
f2bd7f16 AA |
781 | debugfs_remove(intf->rfcsr_val_entry); |
782 | debugfs_remove(intf->rfcsr_off_entry); | |
95ea3627 ID |
783 | debugfs_remove(intf->rf_val_entry); |
784 | debugfs_remove(intf->rf_off_entry); | |
785 | debugfs_remove(intf->bbp_val_entry); | |
786 | debugfs_remove(intf->bbp_off_entry); | |
787 | debugfs_remove(intf->eeprom_val_entry); | |
788 | debugfs_remove(intf->eeprom_off_entry); | |
789 | debugfs_remove(intf->csr_val_entry); | |
790 | debugfs_remove(intf->csr_off_entry); | |
91921a4e | 791 | debugfs_remove(intf->register_folder); |
643b2521 | 792 | debugfs_remove(intf->dev_flags); |
7dab73b3 | 793 | debugfs_remove(intf->cap_flags); |
95ea3627 ID |
794 | debugfs_remove(intf->chipset_entry); |
795 | debugfs_remove(intf->driver_entry); | |
796 | debugfs_remove(intf->driver_folder); | |
797 | kfree(intf->chipset_blob.data); | |
798 | kfree(intf->driver_blob.data); | |
799 | kfree(intf); | |
800 | ||
801 | rt2x00dev->debugfs_intf = NULL; | |
802 | } |