Commit | Line | Data |
---|---|---|
e4d6b795 MB |
1 | /* |
2 | ||
3 | Broadcom B43 wireless driver | |
4 | ||
5 | debugfs driver debugging code | |
6 | ||
7 | Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de> | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; see the file COPYING. If not, write to | |
21 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
22 | Boston, MA 02110-1301, USA. | |
23 | ||
24 | */ | |
25 | ||
26 | #include <linux/fs.h> | |
27 | #include <linux/debugfs.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/pci.h> | |
31 | #include <linux/mutex.h> | |
32 | ||
33 | #include "b43.h" | |
34 | #include "main.h" | |
35 | #include "debugfs.h" | |
36 | #include "dma.h" | |
e4d6b795 MB |
37 | #include "xmit.h" |
38 | ||
39 | ||
40 | /* The root directory. */ | |
1a09404a | 41 | static struct dentry *rootdir; |
e4d6b795 MB |
42 | |
43 | struct b43_debugfs_fops { | |
44 | ssize_t (*read)(struct b43_wldev *dev, char *buf, size_t bufsize); | |
45 | int (*write)(struct b43_wldev *dev, const char *buf, size_t count); | |
46 | struct file_operations fops; | |
47 | /* Offset of struct b43_dfs_file in struct b43_dfsentry */ | |
48 | size_t file_struct_offset; | |
49 | /* Take wl->irq_lock before calling read/write? */ | |
50 | bool take_irqlock; | |
51 | }; | |
52 | ||
53 | static inline | |
54 | struct b43_dfs_file * fops_to_dfs_file(struct b43_wldev *dev, | |
55 | const struct b43_debugfs_fops *dfops) | |
56 | { | |
57 | void *p; | |
58 | ||
59 | p = dev->dfsentry; | |
60 | p += dfops->file_struct_offset; | |
61 | ||
62 | return p; | |
63 | } | |
64 | ||
65 | ||
66 | #define fappend(fmt, x...) \ | |
67 | do { \ | |
68 | if (bufsize - count) \ | |
69 | count += snprintf(buf + count, \ | |
70 | bufsize - count, \ | |
71 | fmt , ##x); \ | |
72 | else \ | |
73 | printk(KERN_ERR "b43: fappend overflow\n"); \ | |
74 | } while (0) | |
75 | ||
76 | ||
77 | /* wl->irq_lock is locked */ | |
1a09404a MB |
78 | static ssize_t tsf_read_file(struct b43_wldev *dev, |
79 | char *buf, size_t bufsize) | |
e4d6b795 MB |
80 | { |
81 | ssize_t count = 0; | |
82 | u64 tsf; | |
83 | ||
84 | b43_tsf_read(dev, &tsf); | |
85 | fappend("0x%08x%08x\n", | |
86 | (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32), | |
87 | (unsigned int)(tsf & 0xFFFFFFFFULL)); | |
88 | ||
89 | return count; | |
90 | } | |
91 | ||
92 | /* wl->irq_lock is locked */ | |
1a09404a MB |
93 | static int tsf_write_file(struct b43_wldev *dev, |
94 | const char *buf, size_t count) | |
e4d6b795 MB |
95 | { |
96 | u64 tsf; | |
97 | ||
98 | if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1) | |
99 | return -EINVAL; | |
100 | b43_tsf_write(dev, tsf); | |
101 | ||
102 | return 0; | |
103 | } | |
104 | ||
105 | /* wl->irq_lock is locked */ | |
1a09404a MB |
106 | static ssize_t ucode_regs_read_file(struct b43_wldev *dev, |
107 | char *buf, size_t bufsize) | |
e4d6b795 MB |
108 | { |
109 | ssize_t count = 0; | |
110 | int i; | |
111 | ||
112 | for (i = 0; i < 64; i++) { | |
113 | fappend("r%d = 0x%04x\n", i, | |
114 | b43_shm_read16(dev, B43_SHM_SCRATCH, i)); | |
115 | } | |
116 | ||
117 | return count; | |
118 | } | |
119 | ||
120 | /* wl->irq_lock is locked */ | |
1a09404a MB |
121 | static ssize_t shm_read_file(struct b43_wldev *dev, |
122 | char *buf, size_t bufsize) | |
e4d6b795 MB |
123 | { |
124 | ssize_t count = 0; | |
125 | int i; | |
126 | u16 tmp; | |
127 | __le16 *le16buf = (__le16 *)buf; | |
128 | ||
129 | for (i = 0; i < 0x1000; i++) { | |
30c4ae42 | 130 | if (bufsize < sizeof(tmp)) |
e4d6b795 MB |
131 | break; |
132 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 2 * i); | |
133 | le16buf[i] = cpu_to_le16(tmp); | |
134 | count += sizeof(tmp); | |
135 | bufsize -= sizeof(tmp); | |
136 | } | |
137 | ||
138 | return count; | |
139 | } | |
140 | ||
1a09404a MB |
141 | static ssize_t txstat_read_file(struct b43_wldev *dev, |
142 | char *buf, size_t bufsize) | |
e4d6b795 MB |
143 | { |
144 | struct b43_txstatus_log *log = &dev->dfsentry->txstatlog; | |
145 | ssize_t count = 0; | |
146 | unsigned long flags; | |
147 | int i, idx; | |
148 | struct b43_txstatus *stat; | |
149 | ||
150 | spin_lock_irqsave(&log->lock, flags); | |
151 | if (log->end < 0) { | |
152 | fappend("Nothing transmitted, yet\n"); | |
153 | goto out_unlock; | |
154 | } | |
155 | fappend("b43 TX status reports:\n\n" | |
156 | "index | cookie | seq | phy_stat | frame_count | " | |
157 | "rts_count | supp_reason | pm_indicated | " | |
158 | "intermediate | for_ampdu | acked\n" "---\n"); | |
159 | i = log->end + 1; | |
160 | idx = 0; | |
161 | while (1) { | |
162 | if (i == B43_NR_LOGGED_TXSTATUS) | |
163 | i = 0; | |
164 | stat = &(log->log[i]); | |
165 | if (stat->cookie) { | |
166 | fappend("%03d | " | |
167 | "0x%04X | 0x%04X | 0x%02X | " | |
168 | "0x%X | 0x%X | " | |
169 | "%u | %u | " | |
170 | "%u | %u | %u\n", | |
171 | idx, | |
172 | stat->cookie, stat->seq, stat->phy_stat, | |
173 | stat->frame_count, stat->rts_count, | |
174 | stat->supp_reason, stat->pm_indicated, | |
175 | stat->intermediate, stat->for_ampdu, | |
176 | stat->acked); | |
177 | idx++; | |
178 | } | |
179 | if (i == log->end) | |
180 | break; | |
181 | i++; | |
182 | } | |
183 | out_unlock: | |
184 | spin_unlock_irqrestore(&log->lock, flags); | |
185 | ||
186 | return count; | |
187 | } | |
188 | ||
1a09404a MB |
189 | static ssize_t txpower_g_read_file(struct b43_wldev *dev, |
190 | char *buf, size_t bufsize) | |
e4d6b795 MB |
191 | { |
192 | ssize_t count = 0; | |
193 | ||
194 | if (dev->phy.type != B43_PHYTYPE_G) { | |
195 | fappend("Device is not a G-PHY\n"); | |
196 | goto out; | |
197 | } | |
198 | fappend("Control: %s\n", dev->phy.manual_txpower_control ? | |
199 | "MANUAL" : "AUTOMATIC"); | |
200 | fappend("Baseband attenuation: %u\n", dev->phy.bbatt.att); | |
201 | fappend("Radio attenuation: %u\n", dev->phy.rfatt.att); | |
202 | fappend("TX Mixer Gain: %s\n", | |
203 | (dev->phy.tx_control & B43_TXCTL_TXMIX) ? "ON" : "OFF"); | |
204 | fappend("PA Gain 2dB: %s\n", | |
205 | (dev->phy.tx_control & B43_TXCTL_PA2DB) ? "ON" : "OFF"); | |
206 | fappend("PA Gain 3dB: %s\n", | |
207 | (dev->phy.tx_control & B43_TXCTL_PA3DB) ? "ON" : "OFF"); | |
208 | fappend("\n\n"); | |
209 | fappend("You can write to this file:\n"); | |
210 | fappend("Writing \"auto\" enables automatic txpower control.\n"); | |
211 | fappend | |
212 | ("Writing the attenuation values as \"bbatt rfatt txmix pa2db pa3db\" " | |
213 | "enables manual txpower control.\n"); | |
214 | fappend("Example: 5 4 0 0 1\n"); | |
215 | fappend("Enables manual control with Baseband attenuation 5, " | |
216 | "Radio attenuation 4, No TX Mixer Gain, " | |
217 | "No PA Gain 2dB, With PA Gain 3dB.\n"); | |
218 | out: | |
219 | return count; | |
220 | } | |
221 | ||
1a09404a MB |
222 | static int txpower_g_write_file(struct b43_wldev *dev, |
223 | const char *buf, size_t count) | |
e4d6b795 | 224 | { |
b85b3b7a MB |
225 | if (dev->phy.type != B43_PHYTYPE_G) |
226 | return -ENODEV; | |
e4d6b795 MB |
227 | if ((count >= 4) && (memcmp(buf, "auto", 4) == 0)) { |
228 | /* Automatic control */ | |
229 | dev->phy.manual_txpower_control = 0; | |
230 | b43_phy_xmitpower(dev); | |
231 | } else { | |
232 | int bbatt = 0, rfatt = 0, txmix = 0, pa2db = 0, pa3db = 0; | |
233 | /* Manual control */ | |
234 | if (sscanf(buf, "%d %d %d %d %d", &bbatt, &rfatt, | |
b85b3b7a MB |
235 | &txmix, &pa2db, &pa3db) != 5) |
236 | return -EINVAL; | |
e4d6b795 MB |
237 | b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt); |
238 | dev->phy.manual_txpower_control = 1; | |
239 | dev->phy.bbatt.att = bbatt; | |
240 | dev->phy.rfatt.att = rfatt; | |
241 | dev->phy.tx_control = 0; | |
242 | if (txmix) | |
243 | dev->phy.tx_control |= B43_TXCTL_TXMIX; | |
244 | if (pa2db) | |
245 | dev->phy.tx_control |= B43_TXCTL_PA2DB; | |
246 | if (pa3db) | |
247 | dev->phy.tx_control |= B43_TXCTL_PA3DB; | |
f31800d8 | 248 | b43_phy_lock(dev); |
e4d6b795 MB |
249 | b43_radio_lock(dev); |
250 | b43_set_txpower_g(dev, &dev->phy.bbatt, | |
251 | &dev->phy.rfatt, dev->phy.tx_control); | |
252 | b43_radio_unlock(dev); | |
f31800d8 | 253 | b43_phy_unlock(dev); |
e4d6b795 | 254 | } |
e4d6b795 | 255 | |
b85b3b7a | 256 | return 0; |
e4d6b795 MB |
257 | } |
258 | ||
259 | /* wl->irq_lock is locked */ | |
1a09404a MB |
260 | static int restart_write_file(struct b43_wldev *dev, |
261 | const char *buf, size_t count) | |
e4d6b795 MB |
262 | { |
263 | int err = 0; | |
264 | ||
265 | if (count > 0 && buf[0] == '1') { | |
266 | b43_controller_restart(dev, "manually restarted"); | |
267 | } else | |
268 | err = -EINVAL; | |
269 | ||
270 | return err; | |
271 | } | |
272 | ||
f5eda47f MB |
273 | static unsigned long calc_expire_secs(unsigned long now, |
274 | unsigned long time, | |
275 | unsigned long expire) | |
e4d6b795 | 276 | { |
f5eda47f MB |
277 | expire = time + expire; |
278 | ||
279 | if (time_after(now, expire)) | |
280 | return 0; /* expired */ | |
281 | if (expire < now) { | |
282 | /* jiffies wrapped */ | |
283 | expire -= MAX_JIFFY_OFFSET; | |
284 | now -= MAX_JIFFY_OFFSET; | |
e4d6b795 | 285 | } |
f5eda47f | 286 | B43_WARN_ON(expire < now); |
e4d6b795 | 287 | |
f5eda47f | 288 | return (expire - now) / HZ; |
e4d6b795 MB |
289 | } |
290 | ||
1a09404a MB |
291 | static ssize_t loctls_read_file(struct b43_wldev *dev, |
292 | char *buf, size_t bufsize) | |
e4d6b795 MB |
293 | { |
294 | ssize_t count = 0; | |
295 | struct b43_txpower_lo_control *lo; | |
296 | int i, err = 0; | |
f5eda47f MB |
297 | struct b43_lo_calib *cal; |
298 | unsigned long now = jiffies; | |
299 | struct b43_phy *phy = &dev->phy; | |
e4d6b795 | 300 | |
f5eda47f | 301 | if (phy->type != B43_PHYTYPE_G) { |
e4d6b795 MB |
302 | fappend("Device is not a G-PHY\n"); |
303 | err = -ENODEV; | |
304 | goto out; | |
305 | } | |
f5eda47f | 306 | lo = phy->lo_control; |
e4d6b795 | 307 | fappend("-- Local Oscillator calibration data --\n\n"); |
f5eda47f | 308 | fappend("HW-power-control enabled: %d\n", |
e4d6b795 | 309 | dev->phy.hardware_power_control); |
f5eda47f MB |
310 | fappend("TX Bias: 0x%02X, TX Magn: 0x%02X (expire in %lu sec)\n", |
311 | lo->tx_bias, lo->tx_magn, | |
312 | calc_expire_secs(now, lo->txctl_measured_time, | |
313 | B43_LO_TXCTL_EXPIRE)); | |
314 | fappend("Power Vector: 0x%08X%08X (expires in %lu sec)\n", | |
e4d6b795 | 315 | (unsigned int)((lo->power_vector & 0xFFFFFFFF00000000ULL) >> 32), |
f5eda47f MB |
316 | (unsigned int)(lo->power_vector & 0x00000000FFFFFFFFULL), |
317 | calc_expire_secs(now, lo->pwr_vec_read_time, | |
318 | B43_LO_PWRVEC_EXPIRE)); | |
319 | ||
320 | fappend("\nCalibrated settings:\n"); | |
321 | list_for_each_entry(cal, &lo->calib_list, list) { | |
322 | bool active; | |
323 | ||
324 | active = (b43_compare_bbatt(&cal->bbatt, &phy->bbatt) && | |
325 | b43_compare_rfatt(&cal->rfatt, &phy->rfatt)); | |
326 | fappend("BB(%d), RF(%d,%d) -> I=%d, Q=%d " | |
327 | "(expires in %lu sec)%s\n", | |
328 | cal->bbatt.att, | |
329 | cal->rfatt.att, cal->rfatt.with_padmix, | |
330 | cal->ctl.i, cal->ctl.q, | |
331 | calc_expire_secs(now, cal->calib_time, | |
332 | B43_LO_CALIB_EXPIRE), | |
333 | active ? " ACTIVE" : ""); | |
334 | } | |
335 | ||
e4d6b795 MB |
336 | fappend("\nUsed RF attenuation values: Value(WithPadmix flag)\n"); |
337 | for (i = 0; i < lo->rfatt_list.len; i++) { | |
338 | fappend("%u(%d), ", | |
339 | lo->rfatt_list.list[i].att, | |
340 | lo->rfatt_list.list[i].with_padmix); | |
341 | } | |
342 | fappend("\n"); | |
343 | fappend("\nUsed Baseband attenuation values:\n"); | |
344 | for (i = 0; i < lo->bbatt_list.len; i++) { | |
345 | fappend("%u, ", | |
346 | lo->bbatt_list.list[i].att); | |
347 | } | |
348 | fappend("\n"); | |
349 | ||
350 | out: | |
351 | return err ? err : count; | |
352 | } | |
353 | ||
354 | #undef fappend | |
355 | ||
356 | static int b43_debugfs_open(struct inode *inode, struct file *file) | |
357 | { | |
358 | file->private_data = inode->i_private; | |
359 | return 0; | |
360 | } | |
361 | ||
362 | static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf, | |
363 | size_t count, loff_t *ppos) | |
364 | { | |
365 | struct b43_wldev *dev; | |
366 | struct b43_debugfs_fops *dfops; | |
367 | struct b43_dfs_file *dfile; | |
7223e8d9 | 368 | ssize_t uninitialized_var(ret); |
e4d6b795 | 369 | char *buf; |
f5eda47f | 370 | const size_t bufsize = 1024 * 16; /* 16 kiB buffer */ |
e4d6b795 MB |
371 | const size_t buforder = get_order(bufsize); |
372 | int err = 0; | |
373 | ||
374 | if (!count) | |
375 | return 0; | |
376 | dev = file->private_data; | |
377 | if (!dev) | |
378 | return -ENODEV; | |
379 | ||
380 | mutex_lock(&dev->wl->mutex); | |
381 | if (b43_status(dev) < B43_STAT_INITIALIZED) { | |
382 | err = -ENODEV; | |
383 | goto out_unlock; | |
384 | } | |
385 | ||
386 | dfops = container_of(file->f_op, struct b43_debugfs_fops, fops); | |
387 | if (!dfops->read) { | |
388 | err = -ENOSYS; | |
389 | goto out_unlock; | |
390 | } | |
391 | dfile = fops_to_dfs_file(dev, dfops); | |
392 | ||
393 | if (!dfile->buffer) { | |
394 | buf = (char *)__get_free_pages(GFP_KERNEL, buforder); | |
395 | if (!buf) { | |
396 | err = -ENOMEM; | |
397 | goto out_unlock; | |
398 | } | |
399 | memset(buf, 0, bufsize); | |
400 | if (dfops->take_irqlock) { | |
401 | spin_lock_irq(&dev->wl->irq_lock); | |
402 | ret = dfops->read(dev, buf, bufsize); | |
403 | spin_unlock_irq(&dev->wl->irq_lock); | |
404 | } else | |
405 | ret = dfops->read(dev, buf, bufsize); | |
406 | if (ret <= 0) { | |
407 | free_pages((unsigned long)buf, buforder); | |
408 | err = ret; | |
409 | goto out_unlock; | |
410 | } | |
411 | dfile->data_len = ret; | |
412 | dfile->buffer = buf; | |
413 | } | |
414 | ||
415 | ret = simple_read_from_buffer(userbuf, count, ppos, | |
416 | dfile->buffer, | |
417 | dfile->data_len); | |
418 | if (*ppos >= dfile->data_len) { | |
419 | free_pages((unsigned long)dfile->buffer, buforder); | |
420 | dfile->buffer = NULL; | |
421 | dfile->data_len = 0; | |
422 | } | |
423 | out_unlock: | |
424 | mutex_unlock(&dev->wl->mutex); | |
425 | ||
426 | return err ? err : ret; | |
427 | } | |
428 | ||
429 | static ssize_t b43_debugfs_write(struct file *file, | |
430 | const char __user *userbuf, | |
431 | size_t count, loff_t *ppos) | |
432 | { | |
433 | struct b43_wldev *dev; | |
434 | struct b43_debugfs_fops *dfops; | |
435 | char *buf; | |
436 | int err = 0; | |
437 | ||
438 | if (!count) | |
439 | return 0; | |
440 | if (count > PAGE_SIZE) | |
441 | return -E2BIG; | |
442 | dev = file->private_data; | |
443 | if (!dev) | |
444 | return -ENODEV; | |
445 | ||
446 | mutex_lock(&dev->wl->mutex); | |
447 | if (b43_status(dev) < B43_STAT_INITIALIZED) { | |
448 | err = -ENODEV; | |
449 | goto out_unlock; | |
450 | } | |
451 | ||
452 | dfops = container_of(file->f_op, struct b43_debugfs_fops, fops); | |
453 | if (!dfops->write) { | |
454 | err = -ENOSYS; | |
455 | goto out_unlock; | |
456 | } | |
457 | ||
458 | buf = (char *)get_zeroed_page(GFP_KERNEL); | |
459 | if (!buf) { | |
460 | err = -ENOMEM; | |
461 | goto out_unlock; | |
462 | } | |
463 | if (copy_from_user(buf, userbuf, count)) { | |
464 | err = -EFAULT; | |
465 | goto out_freepage; | |
466 | } | |
467 | if (dfops->take_irqlock) { | |
468 | spin_lock_irq(&dev->wl->irq_lock); | |
469 | err = dfops->write(dev, buf, count); | |
470 | spin_unlock_irq(&dev->wl->irq_lock); | |
471 | } else | |
472 | err = dfops->write(dev, buf, count); | |
473 | if (err) | |
474 | goto out_freepage; | |
475 | ||
476 | out_freepage: | |
477 | free_page((unsigned long)buf); | |
478 | out_unlock: | |
479 | mutex_unlock(&dev->wl->mutex); | |
480 | ||
481 | return err ? err : count; | |
482 | } | |
483 | ||
484 | ||
485 | #define B43_DEBUGFS_FOPS(name, _read, _write, _take_irqlock) \ | |
486 | static struct b43_debugfs_fops fops_##name = { \ | |
487 | .read = _read, \ | |
488 | .write = _write, \ | |
489 | .fops = { \ | |
490 | .open = b43_debugfs_open, \ | |
491 | .read = b43_debugfs_read, \ | |
492 | .write = b43_debugfs_write, \ | |
493 | }, \ | |
494 | .file_struct_offset = offsetof(struct b43_dfsentry, \ | |
495 | file_##name), \ | |
496 | .take_irqlock = _take_irqlock, \ | |
497 | } | |
498 | ||
499 | B43_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1); | |
500 | B43_DEBUGFS_FOPS(ucode_regs, ucode_regs_read_file, NULL, 1); | |
501 | B43_DEBUGFS_FOPS(shm, shm_read_file, NULL, 1); | |
502 | B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0); | |
503 | B43_DEBUGFS_FOPS(txpower_g, txpower_g_read_file, txpower_g_write_file, 0); | |
504 | B43_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1); | |
505 | B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL, 0); | |
506 | ||
507 | ||
508 | int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature) | |
509 | { | |
510 | return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]); | |
511 | } | |
512 | ||
513 | static void b43_remove_dynamic_debug(struct b43_wldev *dev) | |
514 | { | |
515 | struct b43_dfsentry *e = dev->dfsentry; | |
516 | int i; | |
517 | ||
518 | for (i = 0; i < __B43_NR_DYNDBG; i++) | |
519 | debugfs_remove(e->dyn_debug_dentries[i]); | |
520 | } | |
521 | ||
522 | static void b43_add_dynamic_debug(struct b43_wldev *dev) | |
523 | { | |
524 | struct b43_dfsentry *e = dev->dfsentry; | |
525 | struct dentry *d; | |
526 | ||
527 | #define add_dyn_dbg(name, id, initstate) do { \ | |
528 | e->dyn_debug[id] = (initstate); \ | |
529 | d = debugfs_create_bool(name, 0600, e->subdir, \ | |
530 | &(e->dyn_debug[id])); \ | |
531 | if (!IS_ERR(d)) \ | |
532 | e->dyn_debug_dentries[id] = d; \ | |
533 | } while (0) | |
534 | ||
535 | add_dyn_dbg("debug_xmitpower", B43_DBG_XMITPOWER, 0); | |
536 | add_dyn_dbg("debug_dmaoverflow", B43_DBG_DMAOVERFLOW, 0); | |
537 | add_dyn_dbg("debug_dmaverbose", B43_DBG_DMAVERBOSE, 0); | |
538 | add_dyn_dbg("debug_pwork_fast", B43_DBG_PWORK_FAST, 0); | |
539 | add_dyn_dbg("debug_pwork_stop", B43_DBG_PWORK_STOP, 0); | |
f5eda47f | 540 | add_dyn_dbg("debug_lo", B43_DBG_LO, 0); |
e4d6b795 MB |
541 | |
542 | #undef add_dyn_dbg | |
543 | } | |
544 | ||
545 | void b43_debugfs_add_device(struct b43_wldev *dev) | |
546 | { | |
547 | struct b43_dfsentry *e; | |
548 | struct b43_txstatus_log *log; | |
549 | char devdir[16]; | |
550 | ||
551 | B43_WARN_ON(!dev); | |
552 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
553 | if (!e) { | |
554 | b43err(dev->wl, "debugfs: add device OOM\n"); | |
555 | return; | |
556 | } | |
557 | e->dev = dev; | |
558 | log = &e->txstatlog; | |
559 | log->log = kcalloc(B43_NR_LOGGED_TXSTATUS, | |
560 | sizeof(struct b43_txstatus), GFP_KERNEL); | |
561 | if (!log->log) { | |
562 | b43err(dev->wl, "debugfs: add device txstatus OOM\n"); | |
563 | kfree(e); | |
564 | return; | |
565 | } | |
566 | log->end = -1; | |
567 | spin_lock_init(&log->lock); | |
568 | ||
569 | dev->dfsentry = e; | |
570 | ||
571 | snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy)); | |
572 | e->subdir = debugfs_create_dir(devdir, rootdir); | |
573 | if (!e->subdir || IS_ERR(e->subdir)) { | |
574 | if (e->subdir == ERR_PTR(-ENODEV)) { | |
575 | b43dbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not " | |
576 | "enabled in kernel config\n"); | |
577 | } else { | |
578 | b43err(dev->wl, "debugfs: cannot create %s directory\n", | |
579 | devdir); | |
580 | } | |
581 | dev->dfsentry = NULL; | |
582 | kfree(log->log); | |
583 | kfree(e); | |
584 | return; | |
585 | } | |
586 | ||
587 | #define ADD_FILE(name, mode) \ | |
588 | do { \ | |
589 | struct dentry *d; \ | |
590 | d = debugfs_create_file(__stringify(name), \ | |
591 | mode, e->subdir, dev, \ | |
592 | &fops_##name.fops); \ | |
593 | e->file_##name.dentry = NULL; \ | |
594 | if (!IS_ERR(d)) \ | |
595 | e->file_##name.dentry = d; \ | |
596 | } while (0) | |
597 | ||
598 | ||
599 | ADD_FILE(tsf, 0600); | |
600 | ADD_FILE(ucode_regs, 0400); | |
601 | ADD_FILE(shm, 0400); | |
602 | ADD_FILE(txstat, 0400); | |
603 | ADD_FILE(txpower_g, 0600); | |
604 | ADD_FILE(restart, 0200); | |
605 | ADD_FILE(loctls, 0400); | |
606 | ||
607 | #undef ADD_FILE | |
608 | ||
609 | b43_add_dynamic_debug(dev); | |
610 | } | |
611 | ||
612 | void b43_debugfs_remove_device(struct b43_wldev *dev) | |
613 | { | |
614 | struct b43_dfsentry *e; | |
615 | ||
616 | if (!dev) | |
617 | return; | |
618 | e = dev->dfsentry; | |
619 | if (!e) | |
620 | return; | |
621 | b43_remove_dynamic_debug(dev); | |
622 | ||
623 | debugfs_remove(e->file_tsf.dentry); | |
624 | debugfs_remove(e->file_ucode_regs.dentry); | |
625 | debugfs_remove(e->file_shm.dentry); | |
626 | debugfs_remove(e->file_txstat.dentry); | |
627 | debugfs_remove(e->file_txpower_g.dentry); | |
628 | debugfs_remove(e->file_restart.dentry); | |
629 | debugfs_remove(e->file_loctls.dentry); | |
630 | ||
631 | debugfs_remove(e->subdir); | |
632 | kfree(e->txstatlog.log); | |
633 | kfree(e); | |
634 | } | |
635 | ||
7a193a5d | 636 | /* Called with IRQs disabled. */ |
e4d6b795 MB |
637 | void b43_debugfs_log_txstat(struct b43_wldev *dev, |
638 | const struct b43_txstatus *status) | |
639 | { | |
640 | struct b43_dfsentry *e = dev->dfsentry; | |
641 | struct b43_txstatus_log *log; | |
642 | struct b43_txstatus *cur; | |
643 | int i; | |
644 | ||
645 | if (!e) | |
646 | return; | |
647 | log = &e->txstatlog; | |
7a193a5d | 648 | spin_lock(&log->lock); /* IRQs are already disabled. */ |
e4d6b795 MB |
649 | i = log->end + 1; |
650 | if (i == B43_NR_LOGGED_TXSTATUS) | |
651 | i = 0; | |
652 | log->end = i; | |
653 | cur = &(log->log[i]); | |
654 | memcpy(cur, status, sizeof(*cur)); | |
655 | spin_unlock(&log->lock); | |
656 | } | |
657 | ||
658 | void b43_debugfs_init(void) | |
659 | { | |
660 | rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); | |
661 | if (IS_ERR(rootdir)) | |
662 | rootdir = NULL; | |
663 | } | |
664 | ||
665 | void b43_debugfs_exit(void) | |
666 | { | |
667 | debugfs_remove(rootdir); | |
668 | } |