]>
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> |
4ea6fbc8 | 28 | #include <linux/firmware.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 | ||
1289e9e8 | 128 | int /*__devinit*/ 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 | ||
11aeff08 | 151 | snd_array_init(&codec->init_verbs, sizeof(struct hda_verb), 32); |
43b62713 | 152 | snd_array_init(&codec->hints, sizeof(struct hda_hint), 32); |
346ff70f | 153 | snd_array_init(&codec->user_pins, sizeof(struct hda_pincfg), 16); |
11aeff08 | 154 | |
2807314d TI |
155 | return 0; |
156 | } | |
d7ffba19 | 157 | |
a2f6309e TI |
158 | #ifdef CONFIG_SND_HDA_POWER_SAVE |
159 | static ssize_t power_on_acct_show(struct device *dev, | |
160 | struct device_attribute *attr, | |
161 | char *buf) | |
162 | { | |
163 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
164 | struct hda_codec *codec = hwdep->private_data; | |
165 | snd_hda_update_power_acct(codec); | |
166 | return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct)); | |
167 | } | |
168 | ||
169 | static ssize_t power_off_acct_show(struct device *dev, | |
170 | struct device_attribute *attr, | |
171 | char *buf) | |
172 | { | |
173 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
174 | struct hda_codec *codec = hwdep->private_data; | |
175 | snd_hda_update_power_acct(codec); | |
176 | return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct)); | |
177 | } | |
178 | ||
179 | static struct device_attribute power_attrs[] = { | |
180 | __ATTR_RO(power_on_acct), | |
181 | __ATTR_RO(power_off_acct), | |
182 | }; | |
183 | ||
184 | int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec) | |
185 | { | |
186 | struct snd_hwdep *hwdep = codec->hwdep; | |
187 | int i; | |
188 | ||
189 | for (i = 0; i < ARRAY_SIZE(power_attrs); i++) | |
190 | snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, | |
191 | hwdep->device, &power_attrs[i]); | |
192 | return 0; | |
193 | } | |
194 | #endif /* CONFIG_SND_HDA_POWER_SAVE */ | |
195 | ||
e7ee058c TI |
196 | #ifdef CONFIG_SND_HDA_RECONFIG |
197 | ||
d7ffba19 TI |
198 | /* |
199 | * sysfs interface | |
200 | */ | |
201 | ||
202 | static int clear_codec(struct hda_codec *codec) | |
203 | { | |
a65d629c TI |
204 | int err; |
205 | ||
206 | err = snd_hda_codec_reset(codec); | |
207 | if (err < 0) { | |
208 | snd_printk(KERN_ERR "The codec is being used, can't free.\n"); | |
209 | return err; | |
210 | } | |
11aeff08 | 211 | clear_hwdep_elements(codec); |
d7ffba19 TI |
212 | return 0; |
213 | } | |
214 | ||
215 | static int reconfig_codec(struct hda_codec *codec) | |
216 | { | |
217 | int err; | |
218 | ||
bb6ac72f | 219 | snd_hda_power_up(codec); |
d7ffba19 | 220 | snd_printk(KERN_INFO "hda-codec: reconfiguring\n"); |
a65d629c TI |
221 | err = snd_hda_codec_reset(codec); |
222 | if (err < 0) { | |
223 | snd_printk(KERN_ERR | |
224 | "The codec is being used, can't reconfigure.\n"); | |
bb6ac72f | 225 | goto error; |
a65d629c | 226 | } |
d7ffba19 TI |
227 | err = snd_hda_codec_configure(codec); |
228 | if (err < 0) | |
bb6ac72f | 229 | goto error; |
d7ffba19 | 230 | /* rebuild PCMs */ |
529bd6c4 | 231 | err = snd_hda_codec_build_pcms(codec); |
d7ffba19 | 232 | if (err < 0) |
bb6ac72f | 233 | goto error; |
d7ffba19 TI |
234 | /* rebuild mixers */ |
235 | err = snd_hda_codec_build_controls(codec); | |
236 | if (err < 0) | |
bb6ac72f TI |
237 | goto error; |
238 | err = snd_card_register(codec->bus->card); | |
239 | error: | |
240 | snd_hda_power_down(codec); | |
241 | return err; | |
d7ffba19 TI |
242 | } |
243 | ||
244 | /* | |
245 | * allocate a string at most len chars, and remove the trailing EOL | |
246 | */ | |
247 | static char *kstrndup_noeol(const char *src, size_t len) | |
248 | { | |
249 | char *s = kstrndup(src, len, GFP_KERNEL); | |
250 | char *p; | |
251 | if (!s) | |
252 | return NULL; | |
253 | p = strchr(s, '\n'); | |
254 | if (p) | |
255 | *p = 0; | |
256 | return s; | |
257 | } | |
258 | ||
259 | #define CODEC_INFO_SHOW(type) \ | |
260 | static ssize_t type##_show(struct device *dev, \ | |
261 | struct device_attribute *attr, \ | |
262 | char *buf) \ | |
263 | { \ | |
264 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
265 | struct hda_codec *codec = hwdep->private_data; \ | |
266 | return sprintf(buf, "0x%x\n", codec->type); \ | |
267 | } | |
268 | ||
269 | #define CODEC_INFO_STR_SHOW(type) \ | |
270 | static ssize_t type##_show(struct device *dev, \ | |
271 | struct device_attribute *attr, \ | |
272 | char *buf) \ | |
273 | { \ | |
274 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
275 | struct hda_codec *codec = hwdep->private_data; \ | |
276 | return sprintf(buf, "%s\n", \ | |
277 | codec->type ? codec->type : ""); \ | |
278 | } | |
279 | ||
280 | CODEC_INFO_SHOW(vendor_id); | |
281 | CODEC_INFO_SHOW(subsystem_id); | |
282 | CODEC_INFO_SHOW(revision_id); | |
283 | CODEC_INFO_SHOW(afg); | |
284 | CODEC_INFO_SHOW(mfg); | |
812a2cca TI |
285 | CODEC_INFO_STR_SHOW(vendor_name); |
286 | CODEC_INFO_STR_SHOW(chip_name); | |
d7ffba19 TI |
287 | CODEC_INFO_STR_SHOW(modelname); |
288 | ||
289 | #define CODEC_INFO_STORE(type) \ | |
290 | static ssize_t type##_store(struct device *dev, \ | |
291 | struct device_attribute *attr, \ | |
292 | const char *buf, size_t count) \ | |
293 | { \ | |
294 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
295 | struct hda_codec *codec = hwdep->private_data; \ | |
296 | char *after; \ | |
297 | codec->type = simple_strtoul(buf, &after, 0); \ | |
298 | return count; \ | |
299 | } | |
300 | ||
301 | #define CODEC_INFO_STR_STORE(type) \ | |
302 | static ssize_t type##_store(struct device *dev, \ | |
303 | struct device_attribute *attr, \ | |
304 | const char *buf, size_t count) \ | |
305 | { \ | |
306 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
307 | struct hda_codec *codec = hwdep->private_data; \ | |
308 | char *s = kstrndup_noeol(buf, 64); \ | |
309 | if (!s) \ | |
310 | return -ENOMEM; \ | |
311 | kfree(codec->type); \ | |
312 | codec->type = s; \ | |
313 | return count; \ | |
314 | } | |
315 | ||
316 | CODEC_INFO_STORE(vendor_id); | |
317 | CODEC_INFO_STORE(subsystem_id); | |
318 | CODEC_INFO_STORE(revision_id); | |
812a2cca TI |
319 | CODEC_INFO_STR_STORE(vendor_name); |
320 | CODEC_INFO_STR_STORE(chip_name); | |
d7ffba19 TI |
321 | CODEC_INFO_STR_STORE(modelname); |
322 | ||
323 | #define CODEC_ACTION_STORE(type) \ | |
324 | static ssize_t type##_store(struct device *dev, \ | |
325 | struct device_attribute *attr, \ | |
326 | const char *buf, size_t count) \ | |
327 | { \ | |
328 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
329 | struct hda_codec *codec = hwdep->private_data; \ | |
330 | int err = 0; \ | |
331 | if (*buf) \ | |
332 | err = type##_codec(codec); \ | |
333 | return err < 0 ? err : count; \ | |
334 | } | |
335 | ||
336 | CODEC_ACTION_STORE(reconfig); | |
337 | CODEC_ACTION_STORE(clear); | |
338 | ||
ab1726f9 TI |
339 | static ssize_t init_verbs_show(struct device *dev, |
340 | struct device_attribute *attr, | |
341 | char *buf) | |
342 | { | |
343 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
344 | struct hda_codec *codec = hwdep->private_data; | |
345 | int i, len = 0; | |
346 | for (i = 0; i < codec->init_verbs.used; i++) { | |
347 | struct hda_verb *v = snd_array_elem(&codec->init_verbs, i); | |
348 | len += snprintf(buf + len, PAGE_SIZE - len, | |
349 | "0x%02x 0x%03x 0x%04x\n", | |
350 | v->nid, v->verb, v->param); | |
351 | } | |
352 | return len; | |
353 | } | |
354 | ||
4ea6fbc8 | 355 | static int parse_init_verbs(struct hda_codec *codec, const char *buf) |
11aeff08 | 356 | { |
55290e19 TI |
357 | struct hda_verb *v; |
358 | int nid, verb, param; | |
11aeff08 | 359 | |
55290e19 TI |
360 | if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3) |
361 | return -EINVAL; | |
362 | if (!nid || !verb) | |
11aeff08 TI |
363 | return -EINVAL; |
364 | v = snd_array_new(&codec->init_verbs); | |
365 | if (!v) | |
366 | return -ENOMEM; | |
55290e19 TI |
367 | v->nid = nid; |
368 | v->verb = verb; | |
369 | v->param = param; | |
4ea6fbc8 TI |
370 | return 0; |
371 | } | |
372 | ||
373 | static ssize_t init_verbs_store(struct device *dev, | |
374 | struct device_attribute *attr, | |
375 | const char *buf, size_t count) | |
376 | { | |
377 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
378 | struct hda_codec *codec = hwdep->private_data; | |
379 | int err = parse_init_verbs(codec, buf); | |
380 | if (err < 0) | |
381 | return err; | |
11aeff08 TI |
382 | return count; |
383 | } | |
384 | ||
ab1726f9 TI |
385 | static ssize_t hints_show(struct device *dev, |
386 | struct device_attribute *attr, | |
387 | char *buf) | |
388 | { | |
389 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
390 | struct hda_codec *codec = hwdep->private_data; | |
391 | int i, len = 0; | |
392 | for (i = 0; i < codec->hints.used; i++) { | |
393 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
394 | len += snprintf(buf + len, PAGE_SIZE - len, | |
395 | "%s = %s\n", hint->key, hint->val); | |
396 | } | |
397 | return len; | |
398 | } | |
399 | ||
43b62713 TI |
400 | static struct hda_hint *get_hint(struct hda_codec *codec, const char *key) |
401 | { | |
402 | int i; | |
403 | ||
404 | for (i = 0; i < codec->hints.used; i++) { | |
405 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
406 | if (!strcmp(hint->key, key)) | |
407 | return hint; | |
408 | } | |
409 | return NULL; | |
410 | } | |
411 | ||
412 | static void remove_trail_spaces(char *str) | |
413 | { | |
414 | char *p; | |
415 | if (!*str) | |
416 | return; | |
417 | p = str + strlen(str) - 1; | |
418 | for (; isspace(*p); p--) { | |
419 | *p = 0; | |
420 | if (p == str) | |
421 | return; | |
422 | } | |
423 | } | |
424 | ||
425 | #define MAX_HINTS 1024 | |
426 | ||
4ea6fbc8 | 427 | static int parse_hints(struct hda_codec *codec, const char *buf) |
1e1be432 | 428 | { |
43b62713 TI |
429 | char *key, *val; |
430 | struct hda_hint *hint; | |
1e1be432 | 431 | |
e7d2860b | 432 | buf = skip_spaces(buf); |
43b62713 | 433 | if (!*buf || *buf == '#' || *buf == '\n') |
4ea6fbc8 | 434 | return 0; |
43b62713 TI |
435 | if (*buf == '=') |
436 | return -EINVAL; | |
437 | key = kstrndup_noeol(buf, 1024); | |
438 | if (!key) | |
1e1be432 | 439 | return -ENOMEM; |
43b62713 TI |
440 | /* extract key and val */ |
441 | val = strchr(key, '='); | |
442 | if (!val) { | |
443 | kfree(key); | |
444 | return -EINVAL; | |
445 | } | |
446 | *val++ = 0; | |
e7d2860b | 447 | val = skip_spaces(val); |
43b62713 TI |
448 | remove_trail_spaces(key); |
449 | remove_trail_spaces(val); | |
450 | hint = get_hint(codec, key); | |
451 | if (hint) { | |
452 | /* replace */ | |
453 | kfree(hint->key); | |
454 | hint->key = key; | |
455 | hint->val = val; | |
4ea6fbc8 | 456 | return 0; |
43b62713 TI |
457 | } |
458 | /* allocate a new hint entry */ | |
459 | if (codec->hints.used >= MAX_HINTS) | |
460 | hint = NULL; | |
461 | else | |
462 | hint = snd_array_new(&codec->hints); | |
1e1be432 | 463 | if (!hint) { |
43b62713 | 464 | kfree(key); |
1e1be432 TI |
465 | return -ENOMEM; |
466 | } | |
43b62713 TI |
467 | hint->key = key; |
468 | hint->val = val; | |
4ea6fbc8 TI |
469 | return 0; |
470 | } | |
471 | ||
472 | static ssize_t hints_store(struct device *dev, | |
473 | struct device_attribute *attr, | |
474 | const char *buf, size_t count) | |
475 | { | |
476 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
477 | struct hda_codec *codec = hwdep->private_data; | |
478 | int err = parse_hints(codec, buf); | |
479 | if (err < 0) | |
480 | return err; | |
1e1be432 TI |
481 | return count; |
482 | } | |
483 | ||
3be14149 TI |
484 | static ssize_t pin_configs_show(struct hda_codec *codec, |
485 | struct snd_array *list, | |
486 | char *buf) | |
487 | { | |
488 | int i, len = 0; | |
489 | for (i = 0; i < list->used; i++) { | |
490 | struct hda_pincfg *pin = snd_array_elem(list, i); | |
491 | len += sprintf(buf + len, "0x%02x 0x%08x\n", | |
492 | pin->nid, pin->cfg); | |
493 | } | |
494 | return len; | |
495 | } | |
496 | ||
497 | static ssize_t init_pin_configs_show(struct device *dev, | |
498 | struct device_attribute *attr, | |
499 | char *buf) | |
500 | { | |
501 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
502 | struct hda_codec *codec = hwdep->private_data; | |
503 | return pin_configs_show(codec, &codec->init_pins, buf); | |
504 | } | |
505 | ||
346ff70f TI |
506 | static ssize_t user_pin_configs_show(struct device *dev, |
507 | struct device_attribute *attr, | |
508 | char *buf) | |
3be14149 TI |
509 | { |
510 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
511 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 512 | return pin_configs_show(codec, &codec->user_pins, buf); |
3be14149 TI |
513 | } |
514 | ||
346ff70f TI |
515 | static ssize_t driver_pin_configs_show(struct device *dev, |
516 | struct device_attribute *attr, | |
517 | char *buf) | |
3be14149 TI |
518 | { |
519 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
520 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 521 | return pin_configs_show(codec, &codec->driver_pins, buf); |
3be14149 TI |
522 | } |
523 | ||
524 | #define MAX_PIN_CONFIGS 32 | |
525 | ||
4ea6fbc8 | 526 | static int parse_user_pin_configs(struct hda_codec *codec, const char *buf) |
3be14149 | 527 | { |
3be14149 | 528 | int nid, cfg; |
3be14149 TI |
529 | |
530 | if (sscanf(buf, "%i %i", &nid, &cfg) != 2) | |
531 | return -EINVAL; | |
532 | if (!nid) | |
533 | return -EINVAL; | |
4ea6fbc8 TI |
534 | return snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg); |
535 | } | |
536 | ||
537 | static ssize_t user_pin_configs_store(struct device *dev, | |
538 | struct device_attribute *attr, | |
539 | const char *buf, size_t count) | |
540 | { | |
541 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
542 | struct hda_codec *codec = hwdep->private_data; | |
543 | int err = parse_user_pin_configs(codec, buf); | |
3be14149 TI |
544 | if (err < 0) |
545 | return err; | |
546 | return count; | |
547 | } | |
548 | ||
d7ffba19 TI |
549 | #define CODEC_ATTR_RW(type) \ |
550 | __ATTR(type, 0644, type##_show, type##_store) | |
551 | #define CODEC_ATTR_RO(type) \ | |
552 | __ATTR_RO(type) | |
553 | #define CODEC_ATTR_WO(type) \ | |
554 | __ATTR(type, 0200, NULL, type##_store) | |
555 | ||
556 | static struct device_attribute codec_attrs[] = { | |
557 | CODEC_ATTR_RW(vendor_id), | |
558 | CODEC_ATTR_RW(subsystem_id), | |
559 | CODEC_ATTR_RW(revision_id), | |
560 | CODEC_ATTR_RO(afg), | |
561 | CODEC_ATTR_RO(mfg), | |
812a2cca TI |
562 | CODEC_ATTR_RW(vendor_name), |
563 | CODEC_ATTR_RW(chip_name), | |
d7ffba19 | 564 | CODEC_ATTR_RW(modelname), |
ab1726f9 TI |
565 | CODEC_ATTR_RW(init_verbs), |
566 | CODEC_ATTR_RW(hints), | |
3be14149 | 567 | CODEC_ATTR_RO(init_pin_configs), |
346ff70f TI |
568 | CODEC_ATTR_RW(user_pin_configs), |
569 | CODEC_ATTR_RO(driver_pin_configs), | |
d7ffba19 TI |
570 | CODEC_ATTR_WO(reconfig), |
571 | CODEC_ATTR_WO(clear), | |
572 | }; | |
573 | ||
574 | /* | |
575 | * create sysfs files on hwdep directory | |
576 | */ | |
577 | int snd_hda_hwdep_add_sysfs(struct hda_codec *codec) | |
578 | { | |
579 | struct snd_hwdep *hwdep = codec->hwdep; | |
580 | int i; | |
581 | ||
582 | for (i = 0; i < ARRAY_SIZE(codec_attrs); i++) | |
583 | snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, | |
584 | hwdep->device, &codec_attrs[i]); | |
585 | return 0; | |
586 | } | |
e7ee058c | 587 | |
43b62713 TI |
588 | /* |
589 | * Look for hint string | |
590 | */ | |
591 | const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) | |
592 | { | |
593 | struct hda_hint *hint = get_hint(codec, key); | |
594 | return hint ? hint->val : NULL; | |
595 | } | |
596 | EXPORT_SYMBOL_HDA(snd_hda_get_hint); | |
597 | ||
598 | int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) | |
599 | { | |
600 | const char *p = snd_hda_get_hint(codec, key); | |
601 | if (!p || !*p) | |
602 | return -ENOENT; | |
603 | switch (toupper(*p)) { | |
604 | case 'T': /* true */ | |
605 | case 'Y': /* yes */ | |
606 | case '1': | |
607 | return 1; | |
608 | } | |
609 | return 0; | |
610 | } | |
611 | EXPORT_SYMBOL_HDA(snd_hda_get_bool_hint); | |
612 | ||
e7ee058c | 613 | #endif /* CONFIG_SND_HDA_RECONFIG */ |
4ea6fbc8 TI |
614 | |
615 | #ifdef CONFIG_SND_HDA_PATCH_LOADER | |
616 | ||
617 | /* parser mode */ | |
618 | enum { | |
619 | LINE_MODE_NONE, | |
620 | LINE_MODE_CODEC, | |
621 | LINE_MODE_MODEL, | |
622 | LINE_MODE_PINCFG, | |
623 | LINE_MODE_VERB, | |
624 | LINE_MODE_HINT, | |
625 | NUM_LINE_MODES, | |
626 | }; | |
627 | ||
628 | static inline int strmatch(const char *a, const char *b) | |
629 | { | |
630 | return strnicmp(a, b, strlen(b)) == 0; | |
631 | } | |
632 | ||
633 | /* parse the contents after the line "[codec]" | |
634 | * accept only the line with three numbers, and assign the current codec | |
635 | */ | |
636 | static void parse_codec_mode(char *buf, struct hda_bus *bus, | |
637 | struct hda_codec **codecp) | |
638 | { | |
639 | unsigned int vendorid, subid, caddr; | |
640 | struct hda_codec *codec; | |
641 | ||
642 | *codecp = NULL; | |
643 | if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) { | |
644 | list_for_each_entry(codec, &bus->codec_list, list) { | |
645 | if (codec->addr == caddr) { | |
646 | *codecp = codec; | |
647 | break; | |
648 | } | |
649 | } | |
650 | } | |
651 | } | |
652 | ||
653 | /* parse the contents after the other command tags, [pincfg], [verb], | |
654 | * [hint] and [model] | |
655 | * just pass to the sysfs helper (only when any codec was specified) | |
656 | */ | |
657 | static void parse_pincfg_mode(char *buf, struct hda_bus *bus, | |
658 | struct hda_codec **codecp) | |
659 | { | |
660 | if (!*codecp) | |
661 | return; | |
662 | parse_user_pin_configs(*codecp, buf); | |
663 | } | |
664 | ||
665 | static void parse_verb_mode(char *buf, struct hda_bus *bus, | |
666 | struct hda_codec **codecp) | |
667 | { | |
668 | if (!*codecp) | |
669 | return; | |
670 | parse_init_verbs(*codecp, buf); | |
671 | } | |
672 | ||
673 | static void parse_hint_mode(char *buf, struct hda_bus *bus, | |
674 | struct hda_codec **codecp) | |
675 | { | |
676 | if (!*codecp) | |
677 | return; | |
678 | parse_hints(*codecp, buf); | |
679 | } | |
680 | ||
681 | static void parse_model_mode(char *buf, struct hda_bus *bus, | |
682 | struct hda_codec **codecp) | |
683 | { | |
684 | if (!*codecp) | |
685 | return; | |
686 | kfree((*codecp)->modelname); | |
687 | (*codecp)->modelname = kstrdup(buf, GFP_KERNEL); | |
688 | } | |
689 | ||
690 | struct hda_patch_item { | |
691 | const char *tag; | |
692 | void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc); | |
693 | }; | |
694 | ||
695 | static struct hda_patch_item patch_items[NUM_LINE_MODES] = { | |
696 | [LINE_MODE_CODEC] = { "[codec]", parse_codec_mode }, | |
697 | [LINE_MODE_MODEL] = { "[model]", parse_model_mode }, | |
698 | [LINE_MODE_VERB] = { "[verb]", parse_verb_mode }, | |
699 | [LINE_MODE_PINCFG] = { "[pincfg]", parse_pincfg_mode }, | |
700 | [LINE_MODE_HINT] = { "[hint]", parse_hint_mode }, | |
701 | }; | |
702 | ||
703 | /* check the line starting with '[' -- change the parser mode accodingly */ | |
704 | static int parse_line_mode(char *buf, struct hda_bus *bus) | |
705 | { | |
706 | int i; | |
707 | for (i = 0; i < ARRAY_SIZE(patch_items); i++) { | |
708 | if (!patch_items[i].tag) | |
709 | continue; | |
710 | if (strmatch(buf, patch_items[i].tag)) | |
711 | return i; | |
712 | } | |
713 | return LINE_MODE_NONE; | |
714 | } | |
715 | ||
716 | /* copy one line from the buffer in fw, and update the fields in fw | |
717 | * return zero if it reaches to the end of the buffer, or non-zero | |
718 | * if successfully copied a line | |
719 | * | |
720 | * the spaces at the beginning and the end of the line are stripped | |
721 | */ | |
722 | static int get_line_from_fw(char *buf, int size, struct firmware *fw) | |
723 | { | |
724 | int len; | |
725 | const char *p = fw->data; | |
726 | while (isspace(*p) && fw->size) { | |
727 | p++; | |
728 | fw->size--; | |
729 | } | |
730 | if (!fw->size) | |
731 | return 0; | |
732 | if (size < fw->size) | |
733 | size = fw->size; | |
734 | ||
735 | for (len = 0; len < fw->size; len++) { | |
736 | if (!*p) | |
737 | break; | |
738 | if (*p == '\n') { | |
739 | p++; | |
740 | len++; | |
741 | break; | |
742 | } | |
743 | if (len < size) | |
744 | *buf++ = *p++; | |
745 | } | |
746 | *buf = 0; | |
747 | fw->size -= len; | |
748 | fw->data = p; | |
749 | remove_trail_spaces(buf); | |
750 | return 1; | |
751 | } | |
752 | ||
753 | /* | |
754 | * load a "patch" firmware file and parse it | |
755 | */ | |
756 | int snd_hda_load_patch(struct hda_bus *bus, const char *patch) | |
757 | { | |
758 | int err; | |
759 | const struct firmware *fw; | |
760 | struct firmware tmp; | |
761 | char buf[128]; | |
762 | struct hda_codec *codec; | |
763 | int line_mode; | |
764 | struct device *dev = bus->card->dev; | |
765 | ||
766 | if (snd_BUG_ON(!dev)) | |
767 | return -ENODEV; | |
768 | err = request_firmware(&fw, patch, dev); | |
769 | if (err < 0) { | |
770 | printk(KERN_ERR "hda-codec: Cannot load the patch '%s'\n", | |
771 | patch); | |
772 | return err; | |
773 | } | |
774 | ||
775 | tmp = *fw; | |
776 | line_mode = LINE_MODE_NONE; | |
777 | codec = NULL; | |
778 | while (get_line_from_fw(buf, sizeof(buf) - 1, &tmp)) { | |
779 | if (!*buf || *buf == '#' || *buf == '\n') | |
780 | continue; | |
781 | if (*buf == '[') | |
782 | line_mode = parse_line_mode(buf, bus); | |
783 | else if (patch_items[line_mode].parser) | |
784 | patch_items[line_mode].parser(buf, bus, &codec); | |
785 | } | |
786 | release_firmware(fw); | |
787 | return 0; | |
788 | } | |
789 | EXPORT_SYMBOL_HDA(snd_hda_load_patch); | |
790 | #endif /* CONFIG_SND_HDA_PATCH_LOADER */ |