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> |
d81a6d71 | 29 | #include <linux/export.h> |
2807314d TI |
30 | #include <sound/core.h> |
31 | #include "hda_codec.h" | |
32 | #include "hda_local.h" | |
33 | #include <sound/hda_hwdep.h> | |
d7ffba19 | 34 | #include <sound/minors.h> |
2807314d | 35 | |
43b62713 TI |
36 | /* hint string pair */ |
37 | struct hda_hint { | |
38 | const char *key; | |
39 | const char *val; /* contained in the same alloc as key */ | |
40 | }; | |
41 | ||
2807314d TI |
42 | /* |
43 | * write/read an out-of-bound verb | |
44 | */ | |
45 | static int verb_write_ioctl(struct hda_codec *codec, | |
46 | struct hda_verb_ioctl __user *arg) | |
47 | { | |
48 | u32 verb, res; | |
49 | ||
50 | if (get_user(verb, &arg->verb)) | |
51 | return -EFAULT; | |
52 | res = snd_hda_codec_read(codec, verb >> 24, 0, | |
53 | (verb >> 8) & 0xffff, verb & 0xff); | |
54 | if (put_user(res, &arg->res)) | |
55 | return -EFAULT; | |
56 | return 0; | |
57 | } | |
58 | ||
59 | static int get_wcap_ioctl(struct hda_codec *codec, | |
60 | struct hda_verb_ioctl __user *arg) | |
61 | { | |
62 | u32 verb, res; | |
63 | ||
64 | if (get_user(verb, &arg->verb)) | |
65 | return -EFAULT; | |
66 | res = get_wcaps(codec, verb >> 24); | |
67 | if (put_user(res, &arg->res)) | |
68 | return -EFAULT; | |
69 | return 0; | |
70 | } | |
71 | ||
72 | ||
73 | /* | |
74 | */ | |
75 | static int hda_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, | |
76 | unsigned int cmd, unsigned long arg) | |
77 | { | |
78 | struct hda_codec *codec = hw->private_data; | |
79 | void __user *argp = (void __user *)arg; | |
80 | ||
81 | switch (cmd) { | |
82 | case HDA_IOCTL_PVERSION: | |
83 | return put_user(HDA_HWDEP_VERSION, (int __user *)argp); | |
84 | case HDA_IOCTL_VERB_WRITE: | |
85 | return verb_write_ioctl(codec, argp); | |
86 | case HDA_IOCTL_GET_WCAP: | |
87 | return get_wcap_ioctl(codec, argp); | |
88 | } | |
89 | return -ENOIOCTLCMD; | |
90 | } | |
91 | ||
92 | #ifdef CONFIG_COMPAT | |
93 | static int hda_hwdep_ioctl_compat(struct snd_hwdep *hw, struct file *file, | |
94 | unsigned int cmd, unsigned long arg) | |
95 | { | |
312d045c | 96 | return hda_hwdep_ioctl(hw, file, cmd, (unsigned long)compat_ptr(arg)); |
2807314d TI |
97 | } |
98 | #endif | |
99 | ||
100 | static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file) | |
101 | { | |
62cf872a | 102 | #ifndef CONFIG_SND_DEBUG_VERBOSE |
2807314d TI |
103 | if (!capable(CAP_SYS_RAWIO)) |
104 | return -EACCES; | |
105 | #endif | |
106 | return 0; | |
107 | } | |
108 | ||
11aeff08 TI |
109 | static void clear_hwdep_elements(struct hda_codec *codec) |
110 | { | |
1e1be432 TI |
111 | int i; |
112 | ||
11aeff08 TI |
113 | /* clear init verbs */ |
114 | snd_array_free(&codec->init_verbs); | |
1e1be432 | 115 | /* clear hints */ |
43b62713 TI |
116 | for (i = 0; i < codec->hints.used; i++) { |
117 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
118 | kfree(hint->key); /* we don't need to free hint->val */ | |
119 | } | |
1e1be432 | 120 | snd_array_free(&codec->hints); |
346ff70f | 121 | snd_array_free(&codec->user_pins); |
11aeff08 TI |
122 | } |
123 | ||
124 | static void hwdep_free(struct snd_hwdep *hwdep) | |
125 | { | |
126 | clear_hwdep_elements(hwdep->private_data); | |
127 | } | |
128 | ||
1289e9e8 | 129 | int /*__devinit*/ snd_hda_create_hwdep(struct hda_codec *codec) |
2807314d TI |
130 | { |
131 | char hwname[16]; | |
132 | struct snd_hwdep *hwdep; | |
133 | int err; | |
134 | ||
135 | sprintf(hwname, "HDA Codec %d", codec->addr); | |
136 | err = snd_hwdep_new(codec->bus->card, hwname, codec->addr, &hwdep); | |
137 | if (err < 0) | |
138 | return err; | |
139 | codec->hwdep = hwdep; | |
140 | sprintf(hwdep->name, "HDA Codec %d", codec->addr); | |
141 | hwdep->iface = SNDRV_HWDEP_IFACE_HDA; | |
142 | hwdep->private_data = codec; | |
11aeff08 | 143 | hwdep->private_free = hwdep_free; |
2807314d TI |
144 | hwdep->exclusive = 1; |
145 | ||
146 | hwdep->ops.open = hda_hwdep_open; | |
147 | hwdep->ops.ioctl = hda_hwdep_ioctl; | |
148 | #ifdef CONFIG_COMPAT | |
149 | hwdep->ops.ioctl_compat = hda_hwdep_ioctl_compat; | |
150 | #endif | |
151 | ||
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 | |
a2f6309e TI |
159 | #ifdef CONFIG_SND_HDA_POWER_SAVE |
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 | } | |
195 | #endif /* CONFIG_SND_HDA_POWER_SAVE */ | |
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; | |
350 | for (i = 0; i < codec->init_verbs.used; i++) { | |
351 | struct hda_verb *v = snd_array_elem(&codec->init_verbs, i); | |
352 | len += snprintf(buf + len, PAGE_SIZE - len, | |
353 | "0x%02x 0x%03x 0x%04x\n", | |
354 | v->nid, v->verb, v->param); | |
355 | } | |
356 | return len; | |
357 | } | |
358 | ||
4ea6fbc8 | 359 | static int parse_init_verbs(struct hda_codec *codec, const char *buf) |
11aeff08 | 360 | { |
55290e19 TI |
361 | struct hda_verb *v; |
362 | int nid, verb, param; | |
11aeff08 | 363 | |
55290e19 TI |
364 | if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3) |
365 | return -EINVAL; | |
366 | if (!nid || !verb) | |
11aeff08 TI |
367 | return -EINVAL; |
368 | v = snd_array_new(&codec->init_verbs); | |
369 | if (!v) | |
370 | return -ENOMEM; | |
55290e19 TI |
371 | v->nid = nid; |
372 | v->verb = verb; | |
373 | v->param = param; | |
4ea6fbc8 TI |
374 | return 0; |
375 | } | |
376 | ||
377 | static ssize_t init_verbs_store(struct device *dev, | |
378 | struct device_attribute *attr, | |
379 | const char *buf, size_t count) | |
380 | { | |
381 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
382 | struct hda_codec *codec = hwdep->private_data; | |
383 | int err = parse_init_verbs(codec, buf); | |
384 | if (err < 0) | |
385 | return err; | |
11aeff08 TI |
386 | return count; |
387 | } | |
388 | ||
ab1726f9 TI |
389 | static ssize_t hints_show(struct device *dev, |
390 | struct device_attribute *attr, | |
391 | char *buf) | |
392 | { | |
393 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
394 | struct hda_codec *codec = hwdep->private_data; | |
395 | int i, len = 0; | |
396 | for (i = 0; i < codec->hints.used; i++) { | |
397 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
398 | len += snprintf(buf + len, PAGE_SIZE - len, | |
399 | "%s = %s\n", hint->key, hint->val); | |
400 | } | |
401 | return len; | |
402 | } | |
403 | ||
43b62713 TI |
404 | static struct hda_hint *get_hint(struct hda_codec *codec, const char *key) |
405 | { | |
406 | int i; | |
407 | ||
408 | for (i = 0; i < codec->hints.used; i++) { | |
409 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
410 | if (!strcmp(hint->key, key)) | |
411 | return hint; | |
412 | } | |
413 | return NULL; | |
414 | } | |
415 | ||
416 | static void remove_trail_spaces(char *str) | |
417 | { | |
418 | char *p; | |
419 | if (!*str) | |
420 | return; | |
421 | p = str + strlen(str) - 1; | |
422 | for (; isspace(*p); p--) { | |
423 | *p = 0; | |
424 | if (p == str) | |
425 | return; | |
426 | } | |
427 | } | |
428 | ||
429 | #define MAX_HINTS 1024 | |
430 | ||
4ea6fbc8 | 431 | static int parse_hints(struct hda_codec *codec, const char *buf) |
1e1be432 | 432 | { |
43b62713 TI |
433 | char *key, *val; |
434 | struct hda_hint *hint; | |
1e1be432 | 435 | |
e7d2860b | 436 | buf = skip_spaces(buf); |
43b62713 | 437 | if (!*buf || *buf == '#' || *buf == '\n') |
4ea6fbc8 | 438 | return 0; |
43b62713 TI |
439 | if (*buf == '=') |
440 | return -EINVAL; | |
441 | key = kstrndup_noeol(buf, 1024); | |
442 | if (!key) | |
1e1be432 | 443 | return -ENOMEM; |
43b62713 TI |
444 | /* extract key and val */ |
445 | val = strchr(key, '='); | |
446 | if (!val) { | |
447 | kfree(key); | |
448 | return -EINVAL; | |
449 | } | |
450 | *val++ = 0; | |
e7d2860b | 451 | val = skip_spaces(val); |
43b62713 TI |
452 | remove_trail_spaces(key); |
453 | remove_trail_spaces(val); | |
454 | hint = get_hint(codec, key); | |
455 | if (hint) { | |
456 | /* replace */ | |
457 | kfree(hint->key); | |
458 | hint->key = key; | |
459 | hint->val = val; | |
4ea6fbc8 | 460 | return 0; |
43b62713 TI |
461 | } |
462 | /* allocate a new hint entry */ | |
463 | if (codec->hints.used >= MAX_HINTS) | |
464 | hint = NULL; | |
465 | else | |
466 | hint = snd_array_new(&codec->hints); | |
1e1be432 | 467 | if (!hint) { |
43b62713 | 468 | kfree(key); |
1e1be432 TI |
469 | return -ENOMEM; |
470 | } | |
43b62713 TI |
471 | hint->key = key; |
472 | hint->val = val; | |
4ea6fbc8 TI |
473 | return 0; |
474 | } | |
475 | ||
476 | static ssize_t hints_store(struct device *dev, | |
477 | struct device_attribute *attr, | |
478 | const char *buf, size_t count) | |
479 | { | |
480 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
481 | struct hda_codec *codec = hwdep->private_data; | |
482 | int err = parse_hints(codec, buf); | |
483 | if (err < 0) | |
484 | return err; | |
1e1be432 TI |
485 | return count; |
486 | } | |
487 | ||
3be14149 TI |
488 | static ssize_t pin_configs_show(struct hda_codec *codec, |
489 | struct snd_array *list, | |
490 | char *buf) | |
491 | { | |
492 | int i, len = 0; | |
493 | for (i = 0; i < list->used; i++) { | |
494 | struct hda_pincfg *pin = snd_array_elem(list, i); | |
495 | len += sprintf(buf + len, "0x%02x 0x%08x\n", | |
496 | pin->nid, pin->cfg); | |
497 | } | |
498 | return len; | |
499 | } | |
500 | ||
501 | static ssize_t init_pin_configs_show(struct device *dev, | |
502 | struct device_attribute *attr, | |
503 | char *buf) | |
504 | { | |
505 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
506 | struct hda_codec *codec = hwdep->private_data; | |
507 | return pin_configs_show(codec, &codec->init_pins, buf); | |
508 | } | |
509 | ||
346ff70f TI |
510 | static ssize_t user_pin_configs_show(struct device *dev, |
511 | struct device_attribute *attr, | |
512 | char *buf) | |
3be14149 TI |
513 | { |
514 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
515 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 516 | return pin_configs_show(codec, &codec->user_pins, buf); |
3be14149 TI |
517 | } |
518 | ||
346ff70f TI |
519 | static ssize_t driver_pin_configs_show(struct device *dev, |
520 | struct device_attribute *attr, | |
521 | char *buf) | |
3be14149 TI |
522 | { |
523 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
524 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 525 | return pin_configs_show(codec, &codec->driver_pins, buf); |
3be14149 TI |
526 | } |
527 | ||
528 | #define MAX_PIN_CONFIGS 32 | |
529 | ||
4ea6fbc8 | 530 | static int parse_user_pin_configs(struct hda_codec *codec, const char *buf) |
3be14149 | 531 | { |
3be14149 | 532 | int nid, cfg; |
3be14149 TI |
533 | |
534 | if (sscanf(buf, "%i %i", &nid, &cfg) != 2) | |
535 | return -EINVAL; | |
536 | if (!nid) | |
537 | return -EINVAL; | |
4ea6fbc8 TI |
538 | return snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg); |
539 | } | |
540 | ||
541 | static ssize_t user_pin_configs_store(struct device *dev, | |
542 | struct device_attribute *attr, | |
543 | const char *buf, size_t count) | |
544 | { | |
545 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
546 | struct hda_codec *codec = hwdep->private_data; | |
547 | int err = parse_user_pin_configs(codec, buf); | |
3be14149 TI |
548 | if (err < 0) |
549 | return err; | |
550 | return count; | |
551 | } | |
552 | ||
d7ffba19 TI |
553 | #define CODEC_ATTR_RW(type) \ |
554 | __ATTR(type, 0644, type##_show, type##_store) | |
555 | #define CODEC_ATTR_RO(type) \ | |
556 | __ATTR_RO(type) | |
557 | #define CODEC_ATTR_WO(type) \ | |
558 | __ATTR(type, 0200, NULL, type##_store) | |
559 | ||
560 | static struct device_attribute codec_attrs[] = { | |
561 | CODEC_ATTR_RW(vendor_id), | |
562 | CODEC_ATTR_RW(subsystem_id), | |
563 | CODEC_ATTR_RW(revision_id), | |
564 | CODEC_ATTR_RO(afg), | |
565 | CODEC_ATTR_RO(mfg), | |
812a2cca TI |
566 | CODEC_ATTR_RW(vendor_name), |
567 | CODEC_ATTR_RW(chip_name), | |
d7ffba19 | 568 | CODEC_ATTR_RW(modelname), |
ab1726f9 TI |
569 | CODEC_ATTR_RW(init_verbs), |
570 | CODEC_ATTR_RW(hints), | |
3be14149 | 571 | CODEC_ATTR_RO(init_pin_configs), |
346ff70f TI |
572 | CODEC_ATTR_RW(user_pin_configs), |
573 | CODEC_ATTR_RO(driver_pin_configs), | |
d7ffba19 TI |
574 | CODEC_ATTR_WO(reconfig), |
575 | CODEC_ATTR_WO(clear), | |
576 | }; | |
577 | ||
578 | /* | |
579 | * create sysfs files on hwdep directory | |
580 | */ | |
581 | int snd_hda_hwdep_add_sysfs(struct hda_codec *codec) | |
582 | { | |
583 | struct snd_hwdep *hwdep = codec->hwdep; | |
584 | int i; | |
585 | ||
586 | for (i = 0; i < ARRAY_SIZE(codec_attrs); i++) | |
587 | snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, | |
588 | hwdep->device, &codec_attrs[i]); | |
589 | return 0; | |
590 | } | |
e7ee058c | 591 | |
43b62713 TI |
592 | /* |
593 | * Look for hint string | |
594 | */ | |
595 | const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) | |
596 | { | |
597 | struct hda_hint *hint = get_hint(codec, key); | |
598 | return hint ? hint->val : NULL; | |
599 | } | |
600 | EXPORT_SYMBOL_HDA(snd_hda_get_hint); | |
601 | ||
602 | int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) | |
603 | { | |
604 | const char *p = snd_hda_get_hint(codec, key); | |
605 | if (!p || !*p) | |
606 | return -ENOENT; | |
607 | switch (toupper(*p)) { | |
608 | case 'T': /* true */ | |
609 | case 'Y': /* yes */ | |
610 | case '1': | |
611 | return 1; | |
612 | } | |
613 | return 0; | |
614 | } | |
615 | EXPORT_SYMBOL_HDA(snd_hda_get_bool_hint); | |
616 | ||
e7ee058c | 617 | #endif /* CONFIG_SND_HDA_RECONFIG */ |
4ea6fbc8 TI |
618 | |
619 | #ifdef CONFIG_SND_HDA_PATCH_LOADER | |
620 | ||
621 | /* parser mode */ | |
622 | enum { | |
623 | LINE_MODE_NONE, | |
624 | LINE_MODE_CODEC, | |
625 | LINE_MODE_MODEL, | |
626 | LINE_MODE_PINCFG, | |
627 | LINE_MODE_VERB, | |
628 | LINE_MODE_HINT, | |
b09f3e78 TI |
629 | LINE_MODE_VENDOR_ID, |
630 | LINE_MODE_SUBSYSTEM_ID, | |
631 | LINE_MODE_REVISION_ID, | |
632 | LINE_MODE_CHIP_NAME, | |
4ea6fbc8 TI |
633 | NUM_LINE_MODES, |
634 | }; | |
635 | ||
636 | static inline int strmatch(const char *a, const char *b) | |
637 | { | |
638 | return strnicmp(a, b, strlen(b)) == 0; | |
639 | } | |
640 | ||
641 | /* parse the contents after the line "[codec]" | |
642 | * accept only the line with three numbers, and assign the current codec | |
643 | */ | |
644 | static void parse_codec_mode(char *buf, struct hda_bus *bus, | |
645 | struct hda_codec **codecp) | |
646 | { | |
ef940b04 | 647 | int vendorid, subid, caddr; |
4ea6fbc8 TI |
648 | struct hda_codec *codec; |
649 | ||
650 | *codecp = NULL; | |
651 | if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) { | |
652 | list_for_each_entry(codec, &bus->codec_list, list) { | |
ef940b04 TI |
653 | if ((vendorid <= 0 || codec->vendor_id == vendorid) && |
654 | (subid <= 0 || codec->subsystem_id == subid) && | |
2385b789 | 655 | codec->addr == caddr) { |
4ea6fbc8 TI |
656 | *codecp = codec; |
657 | break; | |
658 | } | |
659 | } | |
660 | } | |
661 | } | |
662 | ||
663 | /* parse the contents after the other command tags, [pincfg], [verb], | |
b09f3e78 | 664 | * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model] |
4ea6fbc8 TI |
665 | * just pass to the sysfs helper (only when any codec was specified) |
666 | */ | |
667 | static void parse_pincfg_mode(char *buf, struct hda_bus *bus, | |
668 | struct hda_codec **codecp) | |
669 | { | |
4ea6fbc8 TI |
670 | parse_user_pin_configs(*codecp, buf); |
671 | } | |
672 | ||
673 | static void parse_verb_mode(char *buf, struct hda_bus *bus, | |
674 | struct hda_codec **codecp) | |
675 | { | |
4ea6fbc8 TI |
676 | parse_init_verbs(*codecp, buf); |
677 | } | |
678 | ||
679 | static void parse_hint_mode(char *buf, struct hda_bus *bus, | |
680 | struct hda_codec **codecp) | |
681 | { | |
4ea6fbc8 TI |
682 | parse_hints(*codecp, buf); |
683 | } | |
684 | ||
685 | static void parse_model_mode(char *buf, struct hda_bus *bus, | |
686 | struct hda_codec **codecp) | |
687 | { | |
4ea6fbc8 TI |
688 | kfree((*codecp)->modelname); |
689 | (*codecp)->modelname = kstrdup(buf, GFP_KERNEL); | |
690 | } | |
691 | ||
b09f3e78 TI |
692 | static void parse_chip_name_mode(char *buf, struct hda_bus *bus, |
693 | struct hda_codec **codecp) | |
694 | { | |
695 | kfree((*codecp)->chip_name); | |
696 | (*codecp)->chip_name = kstrdup(buf, GFP_KERNEL); | |
697 | } | |
698 | ||
699 | #define DEFINE_PARSE_ID_MODE(name) \ | |
700 | static void parse_##name##_mode(char *buf, struct hda_bus *bus, \ | |
701 | struct hda_codec **codecp) \ | |
702 | { \ | |
703 | unsigned long val; \ | |
704 | if (!strict_strtoul(buf, 0, &val)) \ | |
705 | (*codecp)->name = val; \ | |
706 | } | |
707 | ||
708 | DEFINE_PARSE_ID_MODE(vendor_id); | |
709 | DEFINE_PARSE_ID_MODE(subsystem_id); | |
710 | DEFINE_PARSE_ID_MODE(revision_id); | |
711 | ||
712 | ||
4ea6fbc8 TI |
713 | struct hda_patch_item { |
714 | const char *tag; | |
715 | void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc); | |
b09f3e78 | 716 | int need_codec; |
4ea6fbc8 TI |
717 | }; |
718 | ||
719 | static struct hda_patch_item patch_items[NUM_LINE_MODES] = { | |
b09f3e78 TI |
720 | [LINE_MODE_CODEC] = { "[codec]", parse_codec_mode, 0 }, |
721 | [LINE_MODE_MODEL] = { "[model]", parse_model_mode, 1 }, | |
722 | [LINE_MODE_VERB] = { "[verb]", parse_verb_mode, 1 }, | |
723 | [LINE_MODE_PINCFG] = { "[pincfg]", parse_pincfg_mode, 1 }, | |
724 | [LINE_MODE_HINT] = { "[hint]", parse_hint_mode, 1 }, | |
725 | [LINE_MODE_VENDOR_ID] = { "[vendor_id]", parse_vendor_id_mode, 1 }, | |
726 | [LINE_MODE_SUBSYSTEM_ID] = { "[subsystem_id]", parse_subsystem_id_mode, 1 }, | |
727 | [LINE_MODE_REVISION_ID] = { "[revision_id]", parse_revision_id_mode, 1 }, | |
728 | [LINE_MODE_CHIP_NAME] = { "[chip_name]", parse_chip_name_mode, 1 }, | |
4ea6fbc8 TI |
729 | }; |
730 | ||
731 | /* check the line starting with '[' -- change the parser mode accodingly */ | |
732 | static int parse_line_mode(char *buf, struct hda_bus *bus) | |
733 | { | |
734 | int i; | |
735 | for (i = 0; i < ARRAY_SIZE(patch_items); i++) { | |
736 | if (!patch_items[i].tag) | |
737 | continue; | |
738 | if (strmatch(buf, patch_items[i].tag)) | |
739 | return i; | |
740 | } | |
741 | return LINE_MODE_NONE; | |
742 | } | |
743 | ||
744 | /* copy one line from the buffer in fw, and update the fields in fw | |
745 | * return zero if it reaches to the end of the buffer, or non-zero | |
746 | * if successfully copied a line | |
747 | * | |
748 | * the spaces at the beginning and the end of the line are stripped | |
749 | */ | |
750 | static int get_line_from_fw(char *buf, int size, struct firmware *fw) | |
751 | { | |
752 | int len; | |
753 | const char *p = fw->data; | |
754 | while (isspace(*p) && fw->size) { | |
755 | p++; | |
756 | fw->size--; | |
757 | } | |
758 | if (!fw->size) | |
759 | return 0; | |
760 | if (size < fw->size) | |
761 | size = fw->size; | |
762 | ||
763 | for (len = 0; len < fw->size; len++) { | |
764 | if (!*p) | |
765 | break; | |
766 | if (*p == '\n') { | |
767 | p++; | |
768 | len++; | |
769 | break; | |
770 | } | |
771 | if (len < size) | |
772 | *buf++ = *p++; | |
773 | } | |
774 | *buf = 0; | |
775 | fw->size -= len; | |
776 | fw->data = p; | |
777 | remove_trail_spaces(buf); | |
778 | return 1; | |
779 | } | |
780 | ||
781 | /* | |
782 | * load a "patch" firmware file and parse it | |
783 | */ | |
784 | int snd_hda_load_patch(struct hda_bus *bus, const char *patch) | |
785 | { | |
786 | int err; | |
787 | const struct firmware *fw; | |
788 | struct firmware tmp; | |
789 | char buf[128]; | |
790 | struct hda_codec *codec; | |
791 | int line_mode; | |
792 | struct device *dev = bus->card->dev; | |
793 | ||
794 | if (snd_BUG_ON(!dev)) | |
795 | return -ENODEV; | |
796 | err = request_firmware(&fw, patch, dev); | |
797 | if (err < 0) { | |
798 | printk(KERN_ERR "hda-codec: Cannot load the patch '%s'\n", | |
799 | patch); | |
800 | return err; | |
801 | } | |
802 | ||
803 | tmp = *fw; | |
804 | line_mode = LINE_MODE_NONE; | |
805 | codec = NULL; | |
806 | while (get_line_from_fw(buf, sizeof(buf) - 1, &tmp)) { | |
807 | if (!*buf || *buf == '#' || *buf == '\n') | |
808 | continue; | |
809 | if (*buf == '[') | |
810 | line_mode = parse_line_mode(buf, bus); | |
b09f3e78 TI |
811 | else if (patch_items[line_mode].parser && |
812 | (codec || !patch_items[line_mode].need_codec)) | |
4ea6fbc8 TI |
813 | patch_items[line_mode].parser(buf, bus, &codec); |
814 | } | |
815 | release_firmware(fw); | |
816 | return 0; | |
817 | } | |
818 | EXPORT_SYMBOL_HDA(snd_hda_load_patch); | |
819 | #endif /* CONFIG_SND_HDA_PATCH_LOADER */ |