Commit | Line | Data |
---|---|---|
2807314d TI |
1 | /* |
2 | * HWDEP Interface for HD-audio codec | |
3 | * | |
4 | * Copyright (c) 2007 Takashi Iwai <tiwai@suse.de> | |
5 | * | |
6 | * This driver is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This driver is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
2807314d TI |
21 | #include <linux/init.h> |
22 | #include <linux/slab.h> | |
23 | #include <linux/pci.h> | |
24 | #include <linux/compat.h> | |
25 | #include <linux/mutex.h> | |
1e1be432 | 26 | #include <linux/ctype.h> |
e7d2860b | 27 | #include <linux/string.h> |
d81a6d71 | 28 | #include <linux/export.h> |
2807314d TI |
29 | #include <sound/core.h> |
30 | #include "hda_codec.h" | |
31 | #include "hda_local.h" | |
32 | #include <sound/hda_hwdep.h> | |
d7ffba19 | 33 | #include <sound/minors.h> |
2807314d | 34 | |
43b62713 TI |
35 | /* hint string pair */ |
36 | struct hda_hint { | |
37 | const char *key; | |
38 | const char *val; /* contained in the same alloc as key */ | |
39 | }; | |
40 | ||
2807314d TI |
41 | /* |
42 | * write/read an out-of-bound verb | |
43 | */ | |
44 | static int verb_write_ioctl(struct hda_codec *codec, | |
45 | struct hda_verb_ioctl __user *arg) | |
46 | { | |
47 | u32 verb, res; | |
48 | ||
49 | if (get_user(verb, &arg->verb)) | |
50 | return -EFAULT; | |
51 | res = snd_hda_codec_read(codec, verb >> 24, 0, | |
52 | (verb >> 8) & 0xffff, verb & 0xff); | |
53 | if (put_user(res, &arg->res)) | |
54 | return -EFAULT; | |
55 | return 0; | |
56 | } | |
57 | ||
58 | static int get_wcap_ioctl(struct hda_codec *codec, | |
59 | struct hda_verb_ioctl __user *arg) | |
60 | { | |
61 | u32 verb, res; | |
62 | ||
63 | if (get_user(verb, &arg->verb)) | |
64 | return -EFAULT; | |
65 | res = get_wcaps(codec, verb >> 24); | |
66 | if (put_user(res, &arg->res)) | |
67 | return -EFAULT; | |
68 | return 0; | |
69 | } | |
70 | ||
71 | ||
72 | /* | |
73 | */ | |
74 | static int hda_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, | |
75 | unsigned int cmd, unsigned long arg) | |
76 | { | |
77 | struct hda_codec *codec = hw->private_data; | |
78 | void __user *argp = (void __user *)arg; | |
79 | ||
80 | switch (cmd) { | |
81 | case HDA_IOCTL_PVERSION: | |
82 | return put_user(HDA_HWDEP_VERSION, (int __user *)argp); | |
83 | case HDA_IOCTL_VERB_WRITE: | |
84 | return verb_write_ioctl(codec, argp); | |
85 | case HDA_IOCTL_GET_WCAP: | |
86 | return get_wcap_ioctl(codec, argp); | |
87 | } | |
88 | return -ENOIOCTLCMD; | |
89 | } | |
90 | ||
91 | #ifdef CONFIG_COMPAT | |
92 | static int hda_hwdep_ioctl_compat(struct snd_hwdep *hw, struct file *file, | |
93 | unsigned int cmd, unsigned long arg) | |
94 | { | |
312d045c | 95 | return hda_hwdep_ioctl(hw, file, cmd, (unsigned long)compat_ptr(arg)); |
2807314d TI |
96 | } |
97 | #endif | |
98 | ||
99 | static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file) | |
100 | { | |
62cf872a | 101 | #ifndef CONFIG_SND_DEBUG_VERBOSE |
2807314d TI |
102 | if (!capable(CAP_SYS_RAWIO)) |
103 | return -EACCES; | |
104 | #endif | |
105 | return 0; | |
106 | } | |
107 | ||
11aeff08 TI |
108 | static void clear_hwdep_elements(struct hda_codec *codec) |
109 | { | |
1e1be432 TI |
110 | int i; |
111 | ||
11aeff08 TI |
112 | /* clear init verbs */ |
113 | snd_array_free(&codec->init_verbs); | |
1e1be432 | 114 | /* clear hints */ |
43b62713 TI |
115 | for (i = 0; i < codec->hints.used; i++) { |
116 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
117 | kfree(hint->key); /* we don't need to free hint->val */ | |
118 | } | |
1e1be432 | 119 | snd_array_free(&codec->hints); |
346ff70f | 120 | snd_array_free(&codec->user_pins); |
11aeff08 TI |
121 | } |
122 | ||
123 | static void hwdep_free(struct snd_hwdep *hwdep) | |
124 | { | |
125 | clear_hwdep_elements(hwdep->private_data); | |
126 | } | |
127 | ||
6a0f56a7 | 128 | int snd_hda_create_hwdep(struct hda_codec *codec) |
2807314d TI |
129 | { |
130 | char hwname[16]; | |
131 | struct snd_hwdep *hwdep; | |
132 | int err; | |
133 | ||
134 | sprintf(hwname, "HDA Codec %d", codec->addr); | |
135 | err = snd_hwdep_new(codec->bus->card, hwname, codec->addr, &hwdep); | |
136 | if (err < 0) | |
137 | return err; | |
138 | codec->hwdep = hwdep; | |
139 | sprintf(hwdep->name, "HDA Codec %d", codec->addr); | |
140 | hwdep->iface = SNDRV_HWDEP_IFACE_HDA; | |
141 | hwdep->private_data = codec; | |
11aeff08 | 142 | hwdep->private_free = hwdep_free; |
2807314d TI |
143 | hwdep->exclusive = 1; |
144 | ||
145 | hwdep->ops.open = hda_hwdep_open; | |
146 | hwdep->ops.ioctl = hda_hwdep_ioctl; | |
147 | #ifdef CONFIG_COMPAT | |
148 | hwdep->ops.ioctl_compat = hda_hwdep_ioctl_compat; | |
149 | #endif | |
150 | ||
09b70e85 | 151 | mutex_init(&codec->user_mutex); |
11aeff08 | 152 | snd_array_init(&codec->init_verbs, sizeof(struct hda_verb), 32); |
43b62713 | 153 | snd_array_init(&codec->hints, sizeof(struct hda_hint), 32); |
346ff70f | 154 | snd_array_init(&codec->user_pins, sizeof(struct hda_pincfg), 16); |
11aeff08 | 155 | |
2807314d TI |
156 | return 0; |
157 | } | |
d7ffba19 | 158 | |
83012a7c | 159 | #ifdef CONFIG_PM |
a2f6309e TI |
160 | static ssize_t power_on_acct_show(struct device *dev, |
161 | struct device_attribute *attr, | |
162 | char *buf) | |
163 | { | |
164 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
165 | struct hda_codec *codec = hwdep->private_data; | |
166 | snd_hda_update_power_acct(codec); | |
167 | return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct)); | |
168 | } | |
169 | ||
170 | static ssize_t power_off_acct_show(struct device *dev, | |
171 | struct device_attribute *attr, | |
172 | char *buf) | |
173 | { | |
174 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
175 | struct hda_codec *codec = hwdep->private_data; | |
176 | snd_hda_update_power_acct(codec); | |
177 | return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct)); | |
178 | } | |
179 | ||
180 | static struct device_attribute power_attrs[] = { | |
181 | __ATTR_RO(power_on_acct), | |
182 | __ATTR_RO(power_off_acct), | |
183 | }; | |
184 | ||
185 | int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec) | |
186 | { | |
187 | struct snd_hwdep *hwdep = codec->hwdep; | |
188 | int i; | |
189 | ||
190 | for (i = 0; i < ARRAY_SIZE(power_attrs); i++) | |
191 | snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, | |
192 | hwdep->device, &power_attrs[i]); | |
193 | return 0; | |
194 | } | |
83012a7c | 195 | #endif /* CONFIG_PM */ |
a2f6309e | 196 | |
e7ee058c TI |
197 | #ifdef CONFIG_SND_HDA_RECONFIG |
198 | ||
d7ffba19 TI |
199 | /* |
200 | * sysfs interface | |
201 | */ | |
202 | ||
203 | static int clear_codec(struct hda_codec *codec) | |
204 | { | |
a65d629c TI |
205 | int err; |
206 | ||
207 | err = snd_hda_codec_reset(codec); | |
208 | if (err < 0) { | |
209 | snd_printk(KERN_ERR "The codec is being used, can't free.\n"); | |
210 | return err; | |
211 | } | |
11aeff08 | 212 | clear_hwdep_elements(codec); |
d7ffba19 TI |
213 | return 0; |
214 | } | |
215 | ||
216 | static int reconfig_codec(struct hda_codec *codec) | |
217 | { | |
218 | int err; | |
219 | ||
bb6ac72f | 220 | snd_hda_power_up(codec); |
d7ffba19 | 221 | snd_printk(KERN_INFO "hda-codec: reconfiguring\n"); |
a65d629c TI |
222 | err = snd_hda_codec_reset(codec); |
223 | if (err < 0) { | |
224 | snd_printk(KERN_ERR | |
225 | "The codec is being used, can't reconfigure.\n"); | |
bb6ac72f | 226 | goto error; |
a65d629c | 227 | } |
d7ffba19 TI |
228 | err = snd_hda_codec_configure(codec); |
229 | if (err < 0) | |
bb6ac72f | 230 | goto error; |
d7ffba19 | 231 | /* rebuild PCMs */ |
529bd6c4 | 232 | err = snd_hda_codec_build_pcms(codec); |
d7ffba19 | 233 | if (err < 0) |
bb6ac72f | 234 | goto error; |
d7ffba19 TI |
235 | /* rebuild mixers */ |
236 | err = snd_hda_codec_build_controls(codec); | |
237 | if (err < 0) | |
bb6ac72f TI |
238 | goto error; |
239 | err = snd_card_register(codec->bus->card); | |
240 | error: | |
241 | snd_hda_power_down(codec); | |
242 | return err; | |
d7ffba19 TI |
243 | } |
244 | ||
245 | /* | |
246 | * allocate a string at most len chars, and remove the trailing EOL | |
247 | */ | |
248 | static char *kstrndup_noeol(const char *src, size_t len) | |
249 | { | |
250 | char *s = kstrndup(src, len, GFP_KERNEL); | |
251 | char *p; | |
252 | if (!s) | |
253 | return NULL; | |
254 | p = strchr(s, '\n'); | |
255 | if (p) | |
256 | *p = 0; | |
257 | return s; | |
258 | } | |
259 | ||
260 | #define CODEC_INFO_SHOW(type) \ | |
261 | static ssize_t type##_show(struct device *dev, \ | |
262 | struct device_attribute *attr, \ | |
263 | char *buf) \ | |
264 | { \ | |
265 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
266 | struct hda_codec *codec = hwdep->private_data; \ | |
267 | return sprintf(buf, "0x%x\n", codec->type); \ | |
268 | } | |
269 | ||
270 | #define CODEC_INFO_STR_SHOW(type) \ | |
271 | static ssize_t type##_show(struct device *dev, \ | |
272 | struct device_attribute *attr, \ | |
273 | char *buf) \ | |
274 | { \ | |
275 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
276 | struct hda_codec *codec = hwdep->private_data; \ | |
277 | return sprintf(buf, "%s\n", \ | |
278 | codec->type ? codec->type : ""); \ | |
279 | } | |
280 | ||
281 | CODEC_INFO_SHOW(vendor_id); | |
282 | CODEC_INFO_SHOW(subsystem_id); | |
283 | CODEC_INFO_SHOW(revision_id); | |
284 | CODEC_INFO_SHOW(afg); | |
285 | CODEC_INFO_SHOW(mfg); | |
812a2cca TI |
286 | CODEC_INFO_STR_SHOW(vendor_name); |
287 | CODEC_INFO_STR_SHOW(chip_name); | |
d7ffba19 TI |
288 | CODEC_INFO_STR_SHOW(modelname); |
289 | ||
290 | #define CODEC_INFO_STORE(type) \ | |
291 | static ssize_t type##_store(struct device *dev, \ | |
292 | struct device_attribute *attr, \ | |
293 | const char *buf, size_t count) \ | |
294 | { \ | |
295 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
296 | struct hda_codec *codec = hwdep->private_data; \ | |
014c41fc TI |
297 | unsigned long val; \ |
298 | int err = strict_strtoul(buf, 0, &val); \ | |
299 | if (err < 0) \ | |
300 | return err; \ | |
301 | codec->type = val; \ | |
d7ffba19 TI |
302 | return count; \ |
303 | } | |
304 | ||
305 | #define CODEC_INFO_STR_STORE(type) \ | |
306 | static ssize_t type##_store(struct device *dev, \ | |
307 | struct device_attribute *attr, \ | |
308 | const char *buf, size_t count) \ | |
309 | { \ | |
310 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
311 | struct hda_codec *codec = hwdep->private_data; \ | |
312 | char *s = kstrndup_noeol(buf, 64); \ | |
313 | if (!s) \ | |
314 | return -ENOMEM; \ | |
315 | kfree(codec->type); \ | |
316 | codec->type = s; \ | |
317 | return count; \ | |
318 | } | |
319 | ||
320 | CODEC_INFO_STORE(vendor_id); | |
321 | CODEC_INFO_STORE(subsystem_id); | |
322 | CODEC_INFO_STORE(revision_id); | |
812a2cca TI |
323 | CODEC_INFO_STR_STORE(vendor_name); |
324 | CODEC_INFO_STR_STORE(chip_name); | |
d7ffba19 TI |
325 | CODEC_INFO_STR_STORE(modelname); |
326 | ||
327 | #define CODEC_ACTION_STORE(type) \ | |
328 | static ssize_t type##_store(struct device *dev, \ | |
329 | struct device_attribute *attr, \ | |
330 | const char *buf, size_t count) \ | |
331 | { \ | |
332 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
333 | struct hda_codec *codec = hwdep->private_data; \ | |
334 | int err = 0; \ | |
335 | if (*buf) \ | |
336 | err = type##_codec(codec); \ | |
337 | return err < 0 ? err : count; \ | |
338 | } | |
339 | ||
340 | CODEC_ACTION_STORE(reconfig); | |
341 | CODEC_ACTION_STORE(clear); | |
342 | ||
ab1726f9 TI |
343 | static ssize_t init_verbs_show(struct device *dev, |
344 | struct device_attribute *attr, | |
345 | char *buf) | |
346 | { | |
347 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
348 | struct hda_codec *codec = hwdep->private_data; | |
349 | int i, len = 0; | |
09b70e85 | 350 | mutex_lock(&codec->user_mutex); |
ab1726f9 TI |
351 | for (i = 0; i < codec->init_verbs.used; i++) { |
352 | struct hda_verb *v = snd_array_elem(&codec->init_verbs, i); | |
353 | len += snprintf(buf + len, PAGE_SIZE - len, | |
354 | "0x%02x 0x%03x 0x%04x\n", | |
355 | v->nid, v->verb, v->param); | |
356 | } | |
09b70e85 | 357 | mutex_unlock(&codec->user_mutex); |
ab1726f9 TI |
358 | return len; |
359 | } | |
360 | ||
4ea6fbc8 | 361 | static int parse_init_verbs(struct hda_codec *codec, const char *buf) |
11aeff08 | 362 | { |
55290e19 TI |
363 | struct hda_verb *v; |
364 | int nid, verb, param; | |
11aeff08 | 365 | |
55290e19 TI |
366 | if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3) |
367 | return -EINVAL; | |
368 | if (!nid || !verb) | |
11aeff08 | 369 | return -EINVAL; |
09b70e85 | 370 | mutex_lock(&codec->user_mutex); |
11aeff08 | 371 | v = snd_array_new(&codec->init_verbs); |
09b70e85 TI |
372 | if (!v) { |
373 | mutex_unlock(&codec->user_mutex); | |
11aeff08 | 374 | return -ENOMEM; |
09b70e85 | 375 | } |
55290e19 TI |
376 | v->nid = nid; |
377 | v->verb = verb; | |
378 | v->param = param; | |
09b70e85 | 379 | mutex_unlock(&codec->user_mutex); |
4ea6fbc8 TI |
380 | return 0; |
381 | } | |
382 | ||
383 | static ssize_t init_verbs_store(struct device *dev, | |
384 | struct device_attribute *attr, | |
385 | const char *buf, size_t count) | |
386 | { | |
387 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
388 | struct hda_codec *codec = hwdep->private_data; | |
389 | int err = parse_init_verbs(codec, buf); | |
390 | if (err < 0) | |
391 | return err; | |
11aeff08 TI |
392 | return count; |
393 | } | |
394 | ||
ab1726f9 TI |
395 | static ssize_t hints_show(struct device *dev, |
396 | struct device_attribute *attr, | |
397 | char *buf) | |
398 | { | |
399 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
400 | struct hda_codec *codec = hwdep->private_data; | |
401 | int i, len = 0; | |
09b70e85 | 402 | mutex_lock(&codec->user_mutex); |
ab1726f9 TI |
403 | for (i = 0; i < codec->hints.used; i++) { |
404 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
405 | len += snprintf(buf + len, PAGE_SIZE - len, | |
406 | "%s = %s\n", hint->key, hint->val); | |
407 | } | |
09b70e85 | 408 | mutex_unlock(&codec->user_mutex); |
ab1726f9 TI |
409 | return len; |
410 | } | |
411 | ||
43b62713 TI |
412 | static struct hda_hint *get_hint(struct hda_codec *codec, const char *key) |
413 | { | |
414 | int i; | |
415 | ||
416 | for (i = 0; i < codec->hints.used; i++) { | |
417 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
418 | if (!strcmp(hint->key, key)) | |
419 | return hint; | |
420 | } | |
421 | return NULL; | |
422 | } | |
423 | ||
424 | static void remove_trail_spaces(char *str) | |
425 | { | |
426 | char *p; | |
427 | if (!*str) | |
428 | return; | |
429 | p = str + strlen(str) - 1; | |
430 | for (; isspace(*p); p--) { | |
431 | *p = 0; | |
432 | if (p == str) | |
433 | return; | |
434 | } | |
435 | } | |
436 | ||
437 | #define MAX_HINTS 1024 | |
438 | ||
4ea6fbc8 | 439 | static int parse_hints(struct hda_codec *codec, const char *buf) |
1e1be432 | 440 | { |
43b62713 TI |
441 | char *key, *val; |
442 | struct hda_hint *hint; | |
09b70e85 | 443 | int err = 0; |
1e1be432 | 444 | |
e7d2860b | 445 | buf = skip_spaces(buf); |
43b62713 | 446 | if (!*buf || *buf == '#' || *buf == '\n') |
4ea6fbc8 | 447 | return 0; |
43b62713 TI |
448 | if (*buf == '=') |
449 | return -EINVAL; | |
450 | key = kstrndup_noeol(buf, 1024); | |
451 | if (!key) | |
1e1be432 | 452 | return -ENOMEM; |
43b62713 TI |
453 | /* extract key and val */ |
454 | val = strchr(key, '='); | |
455 | if (!val) { | |
456 | kfree(key); | |
457 | return -EINVAL; | |
458 | } | |
459 | *val++ = 0; | |
e7d2860b | 460 | val = skip_spaces(val); |
43b62713 TI |
461 | remove_trail_spaces(key); |
462 | remove_trail_spaces(val); | |
09b70e85 | 463 | mutex_lock(&codec->user_mutex); |
43b62713 TI |
464 | hint = get_hint(codec, key); |
465 | if (hint) { | |
466 | /* replace */ | |
467 | kfree(hint->key); | |
468 | hint->key = key; | |
469 | hint->val = val; | |
09b70e85 | 470 | goto unlock; |
43b62713 TI |
471 | } |
472 | /* allocate a new hint entry */ | |
473 | if (codec->hints.used >= MAX_HINTS) | |
474 | hint = NULL; | |
475 | else | |
476 | hint = snd_array_new(&codec->hints); | |
09b70e85 TI |
477 | if (hint) { |
478 | hint->key = key; | |
479 | hint->val = val; | |
480 | } else { | |
481 | err = -ENOMEM; | |
1e1be432 | 482 | } |
09b70e85 TI |
483 | unlock: |
484 | mutex_unlock(&codec->user_mutex); | |
485 | if (err) | |
486 | kfree(key); | |
487 | return err; | |
4ea6fbc8 TI |
488 | } |
489 | ||
490 | static ssize_t hints_store(struct device *dev, | |
491 | struct device_attribute *attr, | |
492 | const char *buf, size_t count) | |
493 | { | |
494 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
495 | struct hda_codec *codec = hwdep->private_data; | |
496 | int err = parse_hints(codec, buf); | |
497 | if (err < 0) | |
498 | return err; | |
1e1be432 TI |
499 | return count; |
500 | } | |
501 | ||
3be14149 TI |
502 | static ssize_t pin_configs_show(struct hda_codec *codec, |
503 | struct snd_array *list, | |
504 | char *buf) | |
505 | { | |
506 | int i, len = 0; | |
09b70e85 | 507 | mutex_lock(&codec->user_mutex); |
3be14149 TI |
508 | for (i = 0; i < list->used; i++) { |
509 | struct hda_pincfg *pin = snd_array_elem(list, i); | |
510 | len += sprintf(buf + len, "0x%02x 0x%08x\n", | |
511 | pin->nid, pin->cfg); | |
512 | } | |
09b70e85 | 513 | mutex_unlock(&codec->user_mutex); |
3be14149 TI |
514 | return len; |
515 | } | |
516 | ||
517 | static ssize_t init_pin_configs_show(struct device *dev, | |
518 | struct device_attribute *attr, | |
519 | char *buf) | |
520 | { | |
521 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
522 | struct hda_codec *codec = hwdep->private_data; | |
523 | return pin_configs_show(codec, &codec->init_pins, buf); | |
524 | } | |
525 | ||
346ff70f TI |
526 | static ssize_t user_pin_configs_show(struct device *dev, |
527 | struct device_attribute *attr, | |
528 | char *buf) | |
3be14149 TI |
529 | { |
530 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
531 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 532 | return pin_configs_show(codec, &codec->user_pins, buf); |
3be14149 TI |
533 | } |
534 | ||
346ff70f TI |
535 | static ssize_t driver_pin_configs_show(struct device *dev, |
536 | struct device_attribute *attr, | |
537 | char *buf) | |
3be14149 TI |
538 | { |
539 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
540 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 541 | return pin_configs_show(codec, &codec->driver_pins, buf); |
3be14149 TI |
542 | } |
543 | ||
544 | #define MAX_PIN_CONFIGS 32 | |
545 | ||
4ea6fbc8 | 546 | static int parse_user_pin_configs(struct hda_codec *codec, const char *buf) |
3be14149 | 547 | { |
09b70e85 | 548 | int nid, cfg, err; |
3be14149 TI |
549 | |
550 | if (sscanf(buf, "%i %i", &nid, &cfg) != 2) | |
551 | return -EINVAL; | |
552 | if (!nid) | |
553 | return -EINVAL; | |
09b70e85 TI |
554 | mutex_lock(&codec->user_mutex); |
555 | err = snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg); | |
556 | mutex_unlock(&codec->user_mutex); | |
557 | return err; | |
4ea6fbc8 TI |
558 | } |
559 | ||
560 | static ssize_t user_pin_configs_store(struct device *dev, | |
561 | struct device_attribute *attr, | |
562 | const char *buf, size_t count) | |
563 | { | |
564 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
565 | struct hda_codec *codec = hwdep->private_data; | |
566 | int err = parse_user_pin_configs(codec, buf); | |
3be14149 TI |
567 | if (err < 0) |
568 | return err; | |
569 | return count; | |
570 | } | |
571 | ||
d7ffba19 TI |
572 | #define CODEC_ATTR_RW(type) \ |
573 | __ATTR(type, 0644, type##_show, type##_store) | |
574 | #define CODEC_ATTR_RO(type) \ | |
575 | __ATTR_RO(type) | |
576 | #define CODEC_ATTR_WO(type) \ | |
577 | __ATTR(type, 0200, NULL, type##_store) | |
578 | ||
579 | static struct device_attribute codec_attrs[] = { | |
580 | CODEC_ATTR_RW(vendor_id), | |
581 | CODEC_ATTR_RW(subsystem_id), | |
582 | CODEC_ATTR_RW(revision_id), | |
583 | CODEC_ATTR_RO(afg), | |
584 | CODEC_ATTR_RO(mfg), | |
812a2cca TI |
585 | CODEC_ATTR_RW(vendor_name), |
586 | CODEC_ATTR_RW(chip_name), | |
d7ffba19 | 587 | CODEC_ATTR_RW(modelname), |
ab1726f9 TI |
588 | CODEC_ATTR_RW(init_verbs), |
589 | CODEC_ATTR_RW(hints), | |
3be14149 | 590 | CODEC_ATTR_RO(init_pin_configs), |
346ff70f TI |
591 | CODEC_ATTR_RW(user_pin_configs), |
592 | CODEC_ATTR_RO(driver_pin_configs), | |
d7ffba19 TI |
593 | CODEC_ATTR_WO(reconfig), |
594 | CODEC_ATTR_WO(clear), | |
595 | }; | |
596 | ||
597 | /* | |
598 | * create sysfs files on hwdep directory | |
599 | */ | |
600 | int snd_hda_hwdep_add_sysfs(struct hda_codec *codec) | |
601 | { | |
602 | struct snd_hwdep *hwdep = codec->hwdep; | |
603 | int i; | |
604 | ||
605 | for (i = 0; i < ARRAY_SIZE(codec_attrs); i++) | |
606 | snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, | |
607 | hwdep->device, &codec_attrs[i]); | |
608 | return 0; | |
609 | } | |
e7ee058c | 610 | |
43b62713 TI |
611 | /* |
612 | * Look for hint string | |
613 | */ | |
614 | const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) | |
615 | { | |
616 | struct hda_hint *hint = get_hint(codec, key); | |
617 | return hint ? hint->val : NULL; | |
618 | } | |
619 | EXPORT_SYMBOL_HDA(snd_hda_get_hint); | |
620 | ||
621 | int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) | |
622 | { | |
09b70e85 TI |
623 | const char *p; |
624 | int ret; | |
625 | ||
626 | mutex_lock(&codec->user_mutex); | |
627 | p = snd_hda_get_hint(codec, key); | |
43b62713 | 628 | if (!p || !*p) |
09b70e85 TI |
629 | ret = -ENOENT; |
630 | else { | |
631 | switch (toupper(*p)) { | |
632 | case 'T': /* true */ | |
633 | case 'Y': /* yes */ | |
634 | case '1': | |
635 | ret = 1; | |
636 | break; | |
637 | default: | |
638 | ret = 0; | |
639 | break; | |
640 | } | |
43b62713 | 641 | } |
09b70e85 TI |
642 | mutex_unlock(&codec->user_mutex); |
643 | return ret; | |
43b62713 TI |
644 | } |
645 | EXPORT_SYMBOL_HDA(snd_hda_get_bool_hint); | |
646 | ||
bc759721 TI |
647 | int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp) |
648 | { | |
649 | const char *p; | |
650 | unsigned long val; | |
651 | int ret; | |
652 | ||
653 | mutex_lock(&codec->user_mutex); | |
654 | p = snd_hda_get_hint(codec, key); | |
655 | if (!p) | |
656 | ret = -ENOENT; | |
657 | else if (strict_strtoul(p, 0, &val)) | |
658 | ret = -EINVAL; | |
659 | else { | |
660 | *valp = val; | |
661 | ret = 0; | |
662 | } | |
663 | mutex_unlock(&codec->user_mutex); | |
664 | return ret; | |
665 | } | |
666 | EXPORT_SYMBOL_HDA(snd_hda_get_int_hint); | |
e7ee058c | 667 | #endif /* CONFIG_SND_HDA_RECONFIG */ |
4ea6fbc8 TI |
668 | |
669 | #ifdef CONFIG_SND_HDA_PATCH_LOADER | |
670 | ||
671 | /* parser mode */ | |
672 | enum { | |
673 | LINE_MODE_NONE, | |
674 | LINE_MODE_CODEC, | |
675 | LINE_MODE_MODEL, | |
676 | LINE_MODE_PINCFG, | |
677 | LINE_MODE_VERB, | |
678 | LINE_MODE_HINT, | |
b09f3e78 TI |
679 | LINE_MODE_VENDOR_ID, |
680 | LINE_MODE_SUBSYSTEM_ID, | |
681 | LINE_MODE_REVISION_ID, | |
682 | LINE_MODE_CHIP_NAME, | |
4ea6fbc8 TI |
683 | NUM_LINE_MODES, |
684 | }; | |
685 | ||
686 | static inline int strmatch(const char *a, const char *b) | |
687 | { | |
688 | return strnicmp(a, b, strlen(b)) == 0; | |
689 | } | |
690 | ||
691 | /* parse the contents after the line "[codec]" | |
692 | * accept only the line with three numbers, and assign the current codec | |
693 | */ | |
694 | static void parse_codec_mode(char *buf, struct hda_bus *bus, | |
695 | struct hda_codec **codecp) | |
696 | { | |
ef940b04 | 697 | int vendorid, subid, caddr; |
4ea6fbc8 TI |
698 | struct hda_codec *codec; |
699 | ||
700 | *codecp = NULL; | |
701 | if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) { | |
702 | list_for_each_entry(codec, &bus->codec_list, list) { | |
ef940b04 TI |
703 | if ((vendorid <= 0 || codec->vendor_id == vendorid) && |
704 | (subid <= 0 || codec->subsystem_id == subid) && | |
2385b789 | 705 | codec->addr == caddr) { |
4ea6fbc8 TI |
706 | *codecp = codec; |
707 | break; | |
708 | } | |
709 | } | |
710 | } | |
711 | } | |
712 | ||
713 | /* parse the contents after the other command tags, [pincfg], [verb], | |
b09f3e78 | 714 | * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model] |
4ea6fbc8 TI |
715 | * just pass to the sysfs helper (only when any codec was specified) |
716 | */ | |
717 | static void parse_pincfg_mode(char *buf, struct hda_bus *bus, | |
718 | struct hda_codec **codecp) | |
719 | { | |
4ea6fbc8 TI |
720 | parse_user_pin_configs(*codecp, buf); |
721 | } | |
722 | ||
723 | static void parse_verb_mode(char *buf, struct hda_bus *bus, | |
724 | struct hda_codec **codecp) | |
725 | { | |
4ea6fbc8 TI |
726 | parse_init_verbs(*codecp, buf); |
727 | } | |
728 | ||
729 | static void parse_hint_mode(char *buf, struct hda_bus *bus, | |
730 | struct hda_codec **codecp) | |
731 | { | |
4ea6fbc8 TI |
732 | parse_hints(*codecp, buf); |
733 | } | |
734 | ||
735 | static void parse_model_mode(char *buf, struct hda_bus *bus, | |
736 | struct hda_codec **codecp) | |
737 | { | |
4ea6fbc8 TI |
738 | kfree((*codecp)->modelname); |
739 | (*codecp)->modelname = kstrdup(buf, GFP_KERNEL); | |
740 | } | |
741 | ||
b09f3e78 TI |
742 | static void parse_chip_name_mode(char *buf, struct hda_bus *bus, |
743 | struct hda_codec **codecp) | |
744 | { | |
745 | kfree((*codecp)->chip_name); | |
746 | (*codecp)->chip_name = kstrdup(buf, GFP_KERNEL); | |
747 | } | |
748 | ||
749 | #define DEFINE_PARSE_ID_MODE(name) \ | |
750 | static void parse_##name##_mode(char *buf, struct hda_bus *bus, \ | |
751 | struct hda_codec **codecp) \ | |
752 | { \ | |
753 | unsigned long val; \ | |
754 | if (!strict_strtoul(buf, 0, &val)) \ | |
755 | (*codecp)->name = val; \ | |
756 | } | |
757 | ||
758 | DEFINE_PARSE_ID_MODE(vendor_id); | |
759 | DEFINE_PARSE_ID_MODE(subsystem_id); | |
760 | DEFINE_PARSE_ID_MODE(revision_id); | |
761 | ||
762 | ||
4ea6fbc8 TI |
763 | struct hda_patch_item { |
764 | const char *tag; | |
765 | void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc); | |
b09f3e78 | 766 | int need_codec; |
4ea6fbc8 TI |
767 | }; |
768 | ||
769 | static struct hda_patch_item patch_items[NUM_LINE_MODES] = { | |
b09f3e78 TI |
770 | [LINE_MODE_CODEC] = { "[codec]", parse_codec_mode, 0 }, |
771 | [LINE_MODE_MODEL] = { "[model]", parse_model_mode, 1 }, | |
772 | [LINE_MODE_VERB] = { "[verb]", parse_verb_mode, 1 }, | |
773 | [LINE_MODE_PINCFG] = { "[pincfg]", parse_pincfg_mode, 1 }, | |
774 | [LINE_MODE_HINT] = { "[hint]", parse_hint_mode, 1 }, | |
775 | [LINE_MODE_VENDOR_ID] = { "[vendor_id]", parse_vendor_id_mode, 1 }, | |
776 | [LINE_MODE_SUBSYSTEM_ID] = { "[subsystem_id]", parse_subsystem_id_mode, 1 }, | |
777 | [LINE_MODE_REVISION_ID] = { "[revision_id]", parse_revision_id_mode, 1 }, | |
778 | [LINE_MODE_CHIP_NAME] = { "[chip_name]", parse_chip_name_mode, 1 }, | |
4ea6fbc8 TI |
779 | }; |
780 | ||
781 | /* check the line starting with '[' -- change the parser mode accodingly */ | |
782 | static int parse_line_mode(char *buf, struct hda_bus *bus) | |
783 | { | |
784 | int i; | |
785 | for (i = 0; i < ARRAY_SIZE(patch_items); i++) { | |
786 | if (!patch_items[i].tag) | |
787 | continue; | |
788 | if (strmatch(buf, patch_items[i].tag)) | |
789 | return i; | |
790 | } | |
791 | return LINE_MODE_NONE; | |
792 | } | |
793 | ||
794 | /* copy one line from the buffer in fw, and update the fields in fw | |
795 | * return zero if it reaches to the end of the buffer, or non-zero | |
796 | * if successfully copied a line | |
797 | * | |
798 | * the spaces at the beginning and the end of the line are stripped | |
799 | */ | |
4918cdab TI |
800 | static int get_line_from_fw(char *buf, int size, size_t *fw_size_p, |
801 | const void **fw_data_p) | |
4ea6fbc8 TI |
802 | { |
803 | int len; | |
4918cdab TI |
804 | size_t fw_size = *fw_size_p; |
805 | const char *p = *fw_data_p; | |
806 | ||
807 | while (isspace(*p) && fw_size) { | |
4ea6fbc8 | 808 | p++; |
4918cdab | 809 | fw_size--; |
4ea6fbc8 | 810 | } |
4918cdab | 811 | if (!fw_size) |
4ea6fbc8 | 812 | return 0; |
4ea6fbc8 | 813 | |
4918cdab | 814 | for (len = 0; len < fw_size; len++) { |
4ea6fbc8 TI |
815 | if (!*p) |
816 | break; | |
817 | if (*p == '\n') { | |
818 | p++; | |
819 | len++; | |
820 | break; | |
821 | } | |
822 | if (len < size) | |
823 | *buf++ = *p++; | |
824 | } | |
825 | *buf = 0; | |
4918cdab TI |
826 | *fw_size_p = fw_size - len; |
827 | *fw_data_p = p; | |
4ea6fbc8 TI |
828 | remove_trail_spaces(buf); |
829 | return 1; | |
830 | } | |
831 | ||
832 | /* | |
833 | * load a "patch" firmware file and parse it | |
834 | */ | |
4918cdab | 835 | int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, const void *fw_buf) |
4ea6fbc8 | 836 | { |
4ea6fbc8 TI |
837 | char buf[128]; |
838 | struct hda_codec *codec; | |
839 | int line_mode; | |
4ea6fbc8 | 840 | |
4ea6fbc8 TI |
841 | line_mode = LINE_MODE_NONE; |
842 | codec = NULL; | |
4918cdab | 843 | while (get_line_from_fw(buf, sizeof(buf) - 1, &fw_size, &fw_buf)) { |
4ea6fbc8 TI |
844 | if (!*buf || *buf == '#' || *buf == '\n') |
845 | continue; | |
846 | if (*buf == '[') | |
847 | line_mode = parse_line_mode(buf, bus); | |
b09f3e78 TI |
848 | else if (patch_items[line_mode].parser && |
849 | (codec || !patch_items[line_mode].need_codec)) | |
4ea6fbc8 TI |
850 | patch_items[line_mode].parser(buf, bus, &codec); |
851 | } | |
4ea6fbc8 TI |
852 | return 0; |
853 | } | |
854 | EXPORT_SYMBOL_HDA(snd_hda_load_patch); | |
855 | #endif /* CONFIG_SND_HDA_PATCH_LOADER */ |