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; \ | |
014c41fc TI |
296 | unsigned long val; \ |
297 | int err = strict_strtoul(buf, 0, &val); \ | |
298 | if (err < 0) \ | |
299 | return err; \ | |
300 | codec->type = val; \ | |
d7ffba19 TI |
301 | return count; \ |
302 | } | |
303 | ||
304 | #define CODEC_INFO_STR_STORE(type) \ | |
305 | static ssize_t type##_store(struct device *dev, \ | |
306 | struct device_attribute *attr, \ | |
307 | const char *buf, size_t count) \ | |
308 | { \ | |
309 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
310 | struct hda_codec *codec = hwdep->private_data; \ | |
311 | char *s = kstrndup_noeol(buf, 64); \ | |
312 | if (!s) \ | |
313 | return -ENOMEM; \ | |
314 | kfree(codec->type); \ | |
315 | codec->type = s; \ | |
316 | return count; \ | |
317 | } | |
318 | ||
319 | CODEC_INFO_STORE(vendor_id); | |
320 | CODEC_INFO_STORE(subsystem_id); | |
321 | CODEC_INFO_STORE(revision_id); | |
812a2cca TI |
322 | CODEC_INFO_STR_STORE(vendor_name); |
323 | CODEC_INFO_STR_STORE(chip_name); | |
d7ffba19 TI |
324 | CODEC_INFO_STR_STORE(modelname); |
325 | ||
326 | #define CODEC_ACTION_STORE(type) \ | |
327 | static ssize_t type##_store(struct device *dev, \ | |
328 | struct device_attribute *attr, \ | |
329 | const char *buf, size_t count) \ | |
330 | { \ | |
331 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); \ | |
332 | struct hda_codec *codec = hwdep->private_data; \ | |
333 | int err = 0; \ | |
334 | if (*buf) \ | |
335 | err = type##_codec(codec); \ | |
336 | return err < 0 ? err : count; \ | |
337 | } | |
338 | ||
339 | CODEC_ACTION_STORE(reconfig); | |
340 | CODEC_ACTION_STORE(clear); | |
341 | ||
ab1726f9 TI |
342 | static ssize_t init_verbs_show(struct device *dev, |
343 | struct device_attribute *attr, | |
344 | char *buf) | |
345 | { | |
346 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
347 | struct hda_codec *codec = hwdep->private_data; | |
348 | int i, len = 0; | |
349 | for (i = 0; i < codec->init_verbs.used; i++) { | |
350 | struct hda_verb *v = snd_array_elem(&codec->init_verbs, i); | |
351 | len += snprintf(buf + len, PAGE_SIZE - len, | |
352 | "0x%02x 0x%03x 0x%04x\n", | |
353 | v->nid, v->verb, v->param); | |
354 | } | |
355 | return len; | |
356 | } | |
357 | ||
4ea6fbc8 | 358 | static int parse_init_verbs(struct hda_codec *codec, const char *buf) |
11aeff08 | 359 | { |
55290e19 TI |
360 | struct hda_verb *v; |
361 | int nid, verb, param; | |
11aeff08 | 362 | |
55290e19 TI |
363 | if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3) |
364 | return -EINVAL; | |
365 | if (!nid || !verb) | |
11aeff08 TI |
366 | return -EINVAL; |
367 | v = snd_array_new(&codec->init_verbs); | |
368 | if (!v) | |
369 | return -ENOMEM; | |
55290e19 TI |
370 | v->nid = nid; |
371 | v->verb = verb; | |
372 | v->param = param; | |
4ea6fbc8 TI |
373 | return 0; |
374 | } | |
375 | ||
376 | static ssize_t init_verbs_store(struct device *dev, | |
377 | struct device_attribute *attr, | |
378 | const char *buf, size_t count) | |
379 | { | |
380 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
381 | struct hda_codec *codec = hwdep->private_data; | |
382 | int err = parse_init_verbs(codec, buf); | |
383 | if (err < 0) | |
384 | return err; | |
11aeff08 TI |
385 | return count; |
386 | } | |
387 | ||
ab1726f9 TI |
388 | static ssize_t hints_show(struct device *dev, |
389 | struct device_attribute *attr, | |
390 | char *buf) | |
391 | { | |
392 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
393 | struct hda_codec *codec = hwdep->private_data; | |
394 | int i, len = 0; | |
395 | for (i = 0; i < codec->hints.used; i++) { | |
396 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
397 | len += snprintf(buf + len, PAGE_SIZE - len, | |
398 | "%s = %s\n", hint->key, hint->val); | |
399 | } | |
400 | return len; | |
401 | } | |
402 | ||
43b62713 TI |
403 | static struct hda_hint *get_hint(struct hda_codec *codec, const char *key) |
404 | { | |
405 | int i; | |
406 | ||
407 | for (i = 0; i < codec->hints.used; i++) { | |
408 | struct hda_hint *hint = snd_array_elem(&codec->hints, i); | |
409 | if (!strcmp(hint->key, key)) | |
410 | return hint; | |
411 | } | |
412 | return NULL; | |
413 | } | |
414 | ||
415 | static void remove_trail_spaces(char *str) | |
416 | { | |
417 | char *p; | |
418 | if (!*str) | |
419 | return; | |
420 | p = str + strlen(str) - 1; | |
421 | for (; isspace(*p); p--) { | |
422 | *p = 0; | |
423 | if (p == str) | |
424 | return; | |
425 | } | |
426 | } | |
427 | ||
428 | #define MAX_HINTS 1024 | |
429 | ||
4ea6fbc8 | 430 | static int parse_hints(struct hda_codec *codec, const char *buf) |
1e1be432 | 431 | { |
43b62713 TI |
432 | char *key, *val; |
433 | struct hda_hint *hint; | |
1e1be432 | 434 | |
e7d2860b | 435 | buf = skip_spaces(buf); |
43b62713 | 436 | if (!*buf || *buf == '#' || *buf == '\n') |
4ea6fbc8 | 437 | return 0; |
43b62713 TI |
438 | if (*buf == '=') |
439 | return -EINVAL; | |
440 | key = kstrndup_noeol(buf, 1024); | |
441 | if (!key) | |
1e1be432 | 442 | return -ENOMEM; |
43b62713 TI |
443 | /* extract key and val */ |
444 | val = strchr(key, '='); | |
445 | if (!val) { | |
446 | kfree(key); | |
447 | return -EINVAL; | |
448 | } | |
449 | *val++ = 0; | |
e7d2860b | 450 | val = skip_spaces(val); |
43b62713 TI |
451 | remove_trail_spaces(key); |
452 | remove_trail_spaces(val); | |
453 | hint = get_hint(codec, key); | |
454 | if (hint) { | |
455 | /* replace */ | |
456 | kfree(hint->key); | |
457 | hint->key = key; | |
458 | hint->val = val; | |
4ea6fbc8 | 459 | return 0; |
43b62713 TI |
460 | } |
461 | /* allocate a new hint entry */ | |
462 | if (codec->hints.used >= MAX_HINTS) | |
463 | hint = NULL; | |
464 | else | |
465 | hint = snd_array_new(&codec->hints); | |
1e1be432 | 466 | if (!hint) { |
43b62713 | 467 | kfree(key); |
1e1be432 TI |
468 | return -ENOMEM; |
469 | } | |
43b62713 TI |
470 | hint->key = key; |
471 | hint->val = val; | |
4ea6fbc8 TI |
472 | return 0; |
473 | } | |
474 | ||
475 | static ssize_t hints_store(struct device *dev, | |
476 | struct device_attribute *attr, | |
477 | const char *buf, size_t count) | |
478 | { | |
479 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
480 | struct hda_codec *codec = hwdep->private_data; | |
481 | int err = parse_hints(codec, buf); | |
482 | if (err < 0) | |
483 | return err; | |
1e1be432 TI |
484 | return count; |
485 | } | |
486 | ||
3be14149 TI |
487 | static ssize_t pin_configs_show(struct hda_codec *codec, |
488 | struct snd_array *list, | |
489 | char *buf) | |
490 | { | |
491 | int i, len = 0; | |
492 | for (i = 0; i < list->used; i++) { | |
493 | struct hda_pincfg *pin = snd_array_elem(list, i); | |
494 | len += sprintf(buf + len, "0x%02x 0x%08x\n", | |
495 | pin->nid, pin->cfg); | |
496 | } | |
497 | return len; | |
498 | } | |
499 | ||
500 | static ssize_t init_pin_configs_show(struct device *dev, | |
501 | struct device_attribute *attr, | |
502 | char *buf) | |
503 | { | |
504 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
505 | struct hda_codec *codec = hwdep->private_data; | |
506 | return pin_configs_show(codec, &codec->init_pins, buf); | |
507 | } | |
508 | ||
346ff70f TI |
509 | static ssize_t user_pin_configs_show(struct device *dev, |
510 | struct device_attribute *attr, | |
511 | char *buf) | |
3be14149 TI |
512 | { |
513 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
514 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 515 | return pin_configs_show(codec, &codec->user_pins, buf); |
3be14149 TI |
516 | } |
517 | ||
346ff70f TI |
518 | static ssize_t driver_pin_configs_show(struct device *dev, |
519 | struct device_attribute *attr, | |
520 | char *buf) | |
3be14149 TI |
521 | { |
522 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
523 | struct hda_codec *codec = hwdep->private_data; | |
346ff70f | 524 | return pin_configs_show(codec, &codec->driver_pins, buf); |
3be14149 TI |
525 | } |
526 | ||
527 | #define MAX_PIN_CONFIGS 32 | |
528 | ||
4ea6fbc8 | 529 | static int parse_user_pin_configs(struct hda_codec *codec, const char *buf) |
3be14149 | 530 | { |
3be14149 | 531 | int nid, cfg; |
3be14149 TI |
532 | |
533 | if (sscanf(buf, "%i %i", &nid, &cfg) != 2) | |
534 | return -EINVAL; | |
535 | if (!nid) | |
536 | return -EINVAL; | |
4ea6fbc8 TI |
537 | return snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg); |
538 | } | |
539 | ||
540 | static ssize_t user_pin_configs_store(struct device *dev, | |
541 | struct device_attribute *attr, | |
542 | const char *buf, size_t count) | |
543 | { | |
544 | struct snd_hwdep *hwdep = dev_get_drvdata(dev); | |
545 | struct hda_codec *codec = hwdep->private_data; | |
546 | int err = parse_user_pin_configs(codec, buf); | |
3be14149 TI |
547 | if (err < 0) |
548 | return err; | |
549 | return count; | |
550 | } | |
551 | ||
d7ffba19 TI |
552 | #define CODEC_ATTR_RW(type) \ |
553 | __ATTR(type, 0644, type##_show, type##_store) | |
554 | #define CODEC_ATTR_RO(type) \ | |
555 | __ATTR_RO(type) | |
556 | #define CODEC_ATTR_WO(type) \ | |
557 | __ATTR(type, 0200, NULL, type##_store) | |
558 | ||
559 | static struct device_attribute codec_attrs[] = { | |
560 | CODEC_ATTR_RW(vendor_id), | |
561 | CODEC_ATTR_RW(subsystem_id), | |
562 | CODEC_ATTR_RW(revision_id), | |
563 | CODEC_ATTR_RO(afg), | |
564 | CODEC_ATTR_RO(mfg), | |
812a2cca TI |
565 | CODEC_ATTR_RW(vendor_name), |
566 | CODEC_ATTR_RW(chip_name), | |
d7ffba19 | 567 | CODEC_ATTR_RW(modelname), |
ab1726f9 TI |
568 | CODEC_ATTR_RW(init_verbs), |
569 | CODEC_ATTR_RW(hints), | |
3be14149 | 570 | CODEC_ATTR_RO(init_pin_configs), |
346ff70f TI |
571 | CODEC_ATTR_RW(user_pin_configs), |
572 | CODEC_ATTR_RO(driver_pin_configs), | |
d7ffba19 TI |
573 | CODEC_ATTR_WO(reconfig), |
574 | CODEC_ATTR_WO(clear), | |
575 | }; | |
576 | ||
577 | /* | |
578 | * create sysfs files on hwdep directory | |
579 | */ | |
580 | int snd_hda_hwdep_add_sysfs(struct hda_codec *codec) | |
581 | { | |
582 | struct snd_hwdep *hwdep = codec->hwdep; | |
583 | int i; | |
584 | ||
585 | for (i = 0; i < ARRAY_SIZE(codec_attrs); i++) | |
586 | snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card, | |
587 | hwdep->device, &codec_attrs[i]); | |
588 | return 0; | |
589 | } | |
e7ee058c | 590 | |
43b62713 TI |
591 | /* |
592 | * Look for hint string | |
593 | */ | |
594 | const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) | |
595 | { | |
596 | struct hda_hint *hint = get_hint(codec, key); | |
597 | return hint ? hint->val : NULL; | |
598 | } | |
599 | EXPORT_SYMBOL_HDA(snd_hda_get_hint); | |
600 | ||
601 | int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) | |
602 | { | |
603 | const char *p = snd_hda_get_hint(codec, key); | |
604 | if (!p || !*p) | |
605 | return -ENOENT; | |
606 | switch (toupper(*p)) { | |
607 | case 'T': /* true */ | |
608 | case 'Y': /* yes */ | |
609 | case '1': | |
610 | return 1; | |
611 | } | |
612 | return 0; | |
613 | } | |
614 | EXPORT_SYMBOL_HDA(snd_hda_get_bool_hint); | |
615 | ||
e7ee058c | 616 | #endif /* CONFIG_SND_HDA_RECONFIG */ |
4ea6fbc8 TI |
617 | |
618 | #ifdef CONFIG_SND_HDA_PATCH_LOADER | |
619 | ||
620 | /* parser mode */ | |
621 | enum { | |
622 | LINE_MODE_NONE, | |
623 | LINE_MODE_CODEC, | |
624 | LINE_MODE_MODEL, | |
625 | LINE_MODE_PINCFG, | |
626 | LINE_MODE_VERB, | |
627 | LINE_MODE_HINT, | |
b09f3e78 TI |
628 | LINE_MODE_VENDOR_ID, |
629 | LINE_MODE_SUBSYSTEM_ID, | |
630 | LINE_MODE_REVISION_ID, | |
631 | LINE_MODE_CHIP_NAME, | |
4ea6fbc8 TI |
632 | NUM_LINE_MODES, |
633 | }; | |
634 | ||
635 | static inline int strmatch(const char *a, const char *b) | |
636 | { | |
637 | return strnicmp(a, b, strlen(b)) == 0; | |
638 | } | |
639 | ||
640 | /* parse the contents after the line "[codec]" | |
641 | * accept only the line with three numbers, and assign the current codec | |
642 | */ | |
643 | static void parse_codec_mode(char *buf, struct hda_bus *bus, | |
644 | struct hda_codec **codecp) | |
645 | { | |
646 | unsigned int vendorid, subid, caddr; | |
647 | struct hda_codec *codec; | |
648 | ||
649 | *codecp = NULL; | |
650 | if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) { | |
651 | list_for_each_entry(codec, &bus->codec_list, list) { | |
2385b789 DH |
652 | if (codec->vendor_id == vendorid && |
653 | codec->subsystem_id == subid && | |
654 | codec->addr == caddr) { | |
4ea6fbc8 TI |
655 | *codecp = codec; |
656 | break; | |
657 | } | |
658 | } | |
659 | } | |
660 | } | |
661 | ||
662 | /* parse the contents after the other command tags, [pincfg], [verb], | |
b09f3e78 | 663 | * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model] |
4ea6fbc8 TI |
664 | * just pass to the sysfs helper (only when any codec was specified) |
665 | */ | |
666 | static void parse_pincfg_mode(char *buf, struct hda_bus *bus, | |
667 | struct hda_codec **codecp) | |
668 | { | |
4ea6fbc8 TI |
669 | parse_user_pin_configs(*codecp, buf); |
670 | } | |
671 | ||
672 | static void parse_verb_mode(char *buf, struct hda_bus *bus, | |
673 | struct hda_codec **codecp) | |
674 | { | |
4ea6fbc8 TI |
675 | parse_init_verbs(*codecp, buf); |
676 | } | |
677 | ||
678 | static void parse_hint_mode(char *buf, struct hda_bus *bus, | |
679 | struct hda_codec **codecp) | |
680 | { | |
4ea6fbc8 TI |
681 | parse_hints(*codecp, buf); |
682 | } | |
683 | ||
684 | static void parse_model_mode(char *buf, struct hda_bus *bus, | |
685 | struct hda_codec **codecp) | |
686 | { | |
4ea6fbc8 TI |
687 | kfree((*codecp)->modelname); |
688 | (*codecp)->modelname = kstrdup(buf, GFP_KERNEL); | |
689 | } | |
690 | ||
b09f3e78 TI |
691 | static void parse_chip_name_mode(char *buf, struct hda_bus *bus, |
692 | struct hda_codec **codecp) | |
693 | { | |
694 | kfree((*codecp)->chip_name); | |
695 | (*codecp)->chip_name = kstrdup(buf, GFP_KERNEL); | |
696 | } | |
697 | ||
698 | #define DEFINE_PARSE_ID_MODE(name) \ | |
699 | static void parse_##name##_mode(char *buf, struct hda_bus *bus, \ | |
700 | struct hda_codec **codecp) \ | |
701 | { \ | |
702 | unsigned long val; \ | |
703 | if (!strict_strtoul(buf, 0, &val)) \ | |
704 | (*codecp)->name = val; \ | |
705 | } | |
706 | ||
707 | DEFINE_PARSE_ID_MODE(vendor_id); | |
708 | DEFINE_PARSE_ID_MODE(subsystem_id); | |
709 | DEFINE_PARSE_ID_MODE(revision_id); | |
710 | ||
711 | ||
4ea6fbc8 TI |
712 | struct hda_patch_item { |
713 | const char *tag; | |
714 | void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc); | |
b09f3e78 | 715 | int need_codec; |
4ea6fbc8 TI |
716 | }; |
717 | ||
718 | static struct hda_patch_item patch_items[NUM_LINE_MODES] = { | |
b09f3e78 TI |
719 | [LINE_MODE_CODEC] = { "[codec]", parse_codec_mode, 0 }, |
720 | [LINE_MODE_MODEL] = { "[model]", parse_model_mode, 1 }, | |
721 | [LINE_MODE_VERB] = { "[verb]", parse_verb_mode, 1 }, | |
722 | [LINE_MODE_PINCFG] = { "[pincfg]", parse_pincfg_mode, 1 }, | |
723 | [LINE_MODE_HINT] = { "[hint]", parse_hint_mode, 1 }, | |
724 | [LINE_MODE_VENDOR_ID] = { "[vendor_id]", parse_vendor_id_mode, 1 }, | |
725 | [LINE_MODE_SUBSYSTEM_ID] = { "[subsystem_id]", parse_subsystem_id_mode, 1 }, | |
726 | [LINE_MODE_REVISION_ID] = { "[revision_id]", parse_revision_id_mode, 1 }, | |
727 | [LINE_MODE_CHIP_NAME] = { "[chip_name]", parse_chip_name_mode, 1 }, | |
4ea6fbc8 TI |
728 | }; |
729 | ||
730 | /* check the line starting with '[' -- change the parser mode accodingly */ | |
731 | static int parse_line_mode(char *buf, struct hda_bus *bus) | |
732 | { | |
733 | int i; | |
734 | for (i = 0; i < ARRAY_SIZE(patch_items); i++) { | |
735 | if (!patch_items[i].tag) | |
736 | continue; | |
737 | if (strmatch(buf, patch_items[i].tag)) | |
738 | return i; | |
739 | } | |
740 | return LINE_MODE_NONE; | |
741 | } | |
742 | ||
743 | /* copy one line from the buffer in fw, and update the fields in fw | |
744 | * return zero if it reaches to the end of the buffer, or non-zero | |
745 | * if successfully copied a line | |
746 | * | |
747 | * the spaces at the beginning and the end of the line are stripped | |
748 | */ | |
749 | static int get_line_from_fw(char *buf, int size, struct firmware *fw) | |
750 | { | |
751 | int len; | |
752 | const char *p = fw->data; | |
753 | while (isspace(*p) && fw->size) { | |
754 | p++; | |
755 | fw->size--; | |
756 | } | |
757 | if (!fw->size) | |
758 | return 0; | |
759 | if (size < fw->size) | |
760 | size = fw->size; | |
761 | ||
762 | for (len = 0; len < fw->size; len++) { | |
763 | if (!*p) | |
764 | break; | |
765 | if (*p == '\n') { | |
766 | p++; | |
767 | len++; | |
768 | break; | |
769 | } | |
770 | if (len < size) | |
771 | *buf++ = *p++; | |
772 | } | |
773 | *buf = 0; | |
774 | fw->size -= len; | |
775 | fw->data = p; | |
776 | remove_trail_spaces(buf); | |
777 | return 1; | |
778 | } | |
779 | ||
780 | /* | |
781 | * load a "patch" firmware file and parse it | |
782 | */ | |
783 | int snd_hda_load_patch(struct hda_bus *bus, const char *patch) | |
784 | { | |
785 | int err; | |
786 | const struct firmware *fw; | |
787 | struct firmware tmp; | |
788 | char buf[128]; | |
789 | struct hda_codec *codec; | |
790 | int line_mode; | |
791 | struct device *dev = bus->card->dev; | |
792 | ||
793 | if (snd_BUG_ON(!dev)) | |
794 | return -ENODEV; | |
795 | err = request_firmware(&fw, patch, dev); | |
796 | if (err < 0) { | |
797 | printk(KERN_ERR "hda-codec: Cannot load the patch '%s'\n", | |
798 | patch); | |
799 | return err; | |
800 | } | |
801 | ||
802 | tmp = *fw; | |
803 | line_mode = LINE_MODE_NONE; | |
804 | codec = NULL; | |
805 | while (get_line_from_fw(buf, sizeof(buf) - 1, &tmp)) { | |
806 | if (!*buf || *buf == '#' || *buf == '\n') | |
807 | continue; | |
808 | if (*buf == '[') | |
809 | line_mode = parse_line_mode(buf, bus); | |
b09f3e78 TI |
810 | else if (patch_items[line_mode].parser && |
811 | (codec || !patch_items[line_mode].need_codec)) | |
4ea6fbc8 TI |
812 | patch_items[line_mode].parser(buf, bus, &codec); |
813 | } | |
814 | release_firmware(fw); | |
815 | return 0; | |
816 | } | |
817 | EXPORT_SYMBOL_HDA(snd_hda_load_patch); | |
818 | #endif /* CONFIG_SND_HDA_PATCH_LOADER */ |