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[ALSA] hda-codec - More fix of ALC880 codec support
[mirror_ubuntu-bionic-kernel.git] / sound / pci / hda / hda_codec.c
CommitLineData
1da177e4
LT		 1/*
2 * Universal Interface for Intel High Definition Audio Codec
3 *
4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
5 *
6 *
7 * This driver is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This driver is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <sound/driver.h>
23#include <linux/init.h>
24#include <linux/delay.h>
25#include <linux/slab.h>
26#include <linux/pci.h>
27#include <linux/moduleparam.h>
28#include <sound/core.h>
29#include "hda_codec.h"
30#include <sound/asoundef.h>
31#include <sound/initval.h>
32#include "hda_local.h"
33
34
35MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
36MODULE_DESCRIPTION("Universal interface for High Definition Audio Codec");
37MODULE_LICENSE("GPL");
38
39
40/*
41 * vendor / preset table
42 */
43
44struct hda_vendor_id {
45 unsigned int id;
46 const char *name;
47};
48
49/* codec vendor labels */
50static struct hda_vendor_id hda_vendor_ids[] = {
51 { 0x10ec, "Realtek" },
54b903ec 52 { 0x11d4, "Analog Devices" },
1da177e4
LT		 53 { 0x13f6, "C-Media" },
54 { 0x434d, "C-Media" },
2f2f4251 55 { 0x8384, "SigmaTel" },
1da177e4
LT		 56 {} /* terminator */
57};
58
59/* codec presets */
60#include "hda_patch.h"
61
62
63/**
64 * snd_hda_codec_read - send a command and get the response
65 * @codec: the HDA codec
66 * @nid: NID to send the command
67 * @direct: direct flag
68 * @verb: the verb to send
69 * @parm: the parameter for the verb
70 *
71 * Send a single command and read the corresponding response.
72 *
73 * Returns the obtained response value, or -1 for an error.
74 */
75unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
76 unsigned int verb, unsigned int parm)
77{
78 unsigned int res;
79 down(&codec->bus->cmd_mutex);
80 if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
81 res = codec->bus->ops.get_response(codec);
82 else
83 res = (unsigned int)-1;
84 up(&codec->bus->cmd_mutex);
85 return res;
86}
87
88/**
89 * snd_hda_codec_write - send a single command without waiting for response
90 * @codec: the HDA codec
91 * @nid: NID to send the command
92 * @direct: direct flag
93 * @verb: the verb to send
94 * @parm: the parameter for the verb
95 *
96 * Send a single command without waiting for response.
97 *
98 * Returns 0 if successful, or a negative error code.
99 */
100int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
101 unsigned int verb, unsigned int parm)
102{
103 int err;
104 down(&codec->bus->cmd_mutex);
105 err = codec->bus->ops.command(codec, nid, direct, verb, parm);
106 up(&codec->bus->cmd_mutex);
107 return err;
108}
109
110/**
111 * snd_hda_sequence_write - sequence writes
112 * @codec: the HDA codec
113 * @seq: VERB array to send
114 *
115 * Send the commands sequentially from the given array.
116 * The array must be terminated with NID=0.
117 */
118void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
119{
120 for (; seq->nid; seq++)
121 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
122}
123
124/**
125 * snd_hda_get_sub_nodes - get the range of sub nodes
126 * @codec: the HDA codec
127 * @nid: NID to parse
128 * @start_id: the pointer to store the start NID
129 *
130 * Parse the NID and store the start NID of its sub-nodes.
131 * Returns the number of sub-nodes.
132 */
133int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
134{
135 unsigned int parm;
136
137 parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
138 *start_id = (parm >> 16) & 0x7fff;
139 return (int)(parm & 0x7fff);
140}
141
142/**
143 * snd_hda_get_connections - get connection list
144 * @codec: the HDA codec
145 * @nid: NID to parse
146 * @conn_list: connection list array
147 * @max_conns: max. number of connections to store
148 *
149 * Parses the connection list of the given widget and stores the list
150 * of NIDs.
151 *
152 * Returns the number of connections, or a negative error code.
153 */
154int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
155 hda_nid_t *conn_list, int max_conns)
156{
157 unsigned int parm;
158 int i, j, conn_len, num_tupples, conns;
159 unsigned int shift, num_elems, mask;
160
161 snd_assert(conn_list && max_conns > 0, return -EINVAL);
162
163 parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
164 if (parm & AC_CLIST_LONG) {
165 /* long form */
166 shift = 16;
167 num_elems = 2;
168 } else {
169 /* short form */
170 shift = 8;
171 num_elems = 4;
172 }
173 conn_len = parm & AC_CLIST_LENGTH;
174 num_tupples = num_elems / 2;
175 mask = (1 << (shift-1)) - 1;
176
177 if (! conn_len)
178 return 0; /* no connection */
179
180 if (conn_len == 1) {
181 /* single connection */
182 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
183 conn_list[0] = parm & mask;
184 return 1;
185 }
186
187 /* multi connection */
188 conns = 0;
189 for (i = 0; i < conn_len; i += num_elems) {
190 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, i);
191 for (j = 0; j < num_tupples; j++) {
192 int range_val;
193 hda_nid_t val1, val2, n;
194 range_val = parm & (1 << (shift-1)); /* ranges */
195 val1 = parm & mask;
196 parm >>= shift;
197 val2 = parm & mask;
198 parm >>= shift;
199 if (range_val) {
200 /* ranges between val1 and val2 */
201 if (val1 > val2) {
202 snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", val1, val2);
203 continue;
204 }
205 for (n = val1; n <= val2; n++) {
206 if (conns >= max_conns)
207 return -EINVAL;
208 conn_list[conns++] = n;
209 }
210 } else {
211 if (! val1)
212 break;
213 if (conns >= max_conns)
214 return -EINVAL;
215 conn_list[conns++] = val1;
216 if (! val2)
217 break;
218 if (conns >= max_conns)
219 return -EINVAL;
220 conn_list[conns++] = val2;
221 }
222 }
223 }
224 return conns;
225}
226
227
228/**
229 * snd_hda_queue_unsol_event - add an unsolicited event to queue
230 * @bus: the BUS
231 * @res: unsolicited event (lower 32bit of RIRB entry)
232 * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
233 *
234 * Adds the given event to the queue. The events are processed in
235 * the workqueue asynchronously. Call this function in the interrupt
236 * hanlder when RIRB receives an unsolicited event.
237 *
238 * Returns 0 if successful, or a negative error code.
239 */
240int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
241{
242 struct hda_bus_unsolicited *unsol;
243 unsigned int wp;
244
245 if ((unsol = bus->unsol) == NULL)
246 return 0;
247
248 wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
249 unsol->wp = wp;
250
251 wp <<= 1;
252 unsol->queue[wp] = res;
253 unsol->queue[wp + 1] = res_ex;
254
255 queue_work(unsol->workq, &unsol->work);
256
257 return 0;
258}
259
260/*
261 * process queueud unsolicited events
262 */
263static void process_unsol_events(void *data)
264{
265 struct hda_bus *bus = data;
266 struct hda_bus_unsolicited *unsol = bus->unsol;
267 struct hda_codec *codec;
268 unsigned int rp, caddr, res;
269
270 while (unsol->rp != unsol->wp) {
271 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
272 unsol->rp = rp;
273 rp <<= 1;
274 res = unsol->queue[rp];
275 caddr = unsol->queue[rp + 1];
276 if (! (caddr & (1 << 4))) /* no unsolicited event? */
277 continue;
278 codec = bus->caddr_tbl[caddr & 0x0f];
279 if (codec && codec->patch_ops.unsol_event)
280 codec->patch_ops.unsol_event(codec, res);
281 }
282}
283
284/*
285 * initialize unsolicited queue
286 */
287static int init_unsol_queue(struct hda_bus *bus)
288{
289 struct hda_bus_unsolicited *unsol;
290
291 unsol = kcalloc(1, sizeof(*unsol), GFP_KERNEL);
292 if (! unsol) {
293 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
294 return -ENOMEM;
295 }
296 unsol->workq = create_workqueue("hda_codec");
297 if (! unsol->workq) {
298 snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
299 kfree(unsol);
300 return -ENOMEM;
301 }
302 INIT_WORK(&unsol->work, process_unsol_events, bus);
303 bus->unsol = unsol;
304 return 0;
305}
306
307/*
308 * destructor
309 */
310static void snd_hda_codec_free(struct hda_codec *codec);
311
312static int snd_hda_bus_free(struct hda_bus *bus)
313{
314 struct list_head *p, *n;
315
316 if (! bus)
317 return 0;
318 if (bus->unsol) {
319 destroy_workqueue(bus->unsol->workq);
320 kfree(bus->unsol);
321 }
322 list_for_each_safe(p, n, &bus->codec_list) {
323 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
324 snd_hda_codec_free(codec);
325 }
326 if (bus->ops.private_free)
327 bus->ops.private_free(bus);
328 kfree(bus);
329 return 0;
330}
331
332static int snd_hda_bus_dev_free(snd_device_t *device)
333{
334 struct hda_bus *bus = device->device_data;
335 return snd_hda_bus_free(bus);
336}
337
338/**
339 * snd_hda_bus_new - create a HDA bus
340 * @card: the card entry
341 * @temp: the template for hda_bus information
342 * @busp: the pointer to store the created bus instance
343 *
344 * Returns 0 if successful, or a negative error code.
345 */
346int snd_hda_bus_new(snd_card_t *card, const struct hda_bus_template *temp,
347 struct hda_bus **busp)
348{
349 struct hda_bus *bus;
350 int err;
351 static snd_device_ops_t dev_ops = {
352 .dev_free = snd_hda_bus_dev_free,
353 };
354
355 snd_assert(temp, return -EINVAL);
356 snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
357
358 if (busp)
359 *busp = NULL;
360
361 bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
362 if (bus == NULL) {
363 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
364 return -ENOMEM;
365 }
366
367 bus->card = card;
368 bus->private_data = temp->private_data;
369 bus->pci = temp->pci;
370 bus->modelname = temp->modelname;
371 bus->ops = temp->ops;
372
373 init_MUTEX(&bus->cmd_mutex);
374 INIT_LIST_HEAD(&bus->codec_list);
375
376 init_unsol_queue(bus);
377
378 if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
379 snd_hda_bus_free(bus);
380 return err;
381 }
382 if (busp)
383 *busp = bus;
384 return 0;
385}
386
387
388/*
389 * find a matching codec preset
390 */
391static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
392{
393 const struct hda_codec_preset **tbl, *preset;
394
395 for (tbl = hda_preset_tables; *tbl; tbl++) {
396 for (preset = *tbl; preset->id; preset++) {
397 u32 mask = preset->mask;
398 if (! mask)
399 mask = ~0;
400 if (preset->id == (codec->vendor_id & mask))
401 return preset;
402 }
403 }
404 return NULL;
405}
406
407/*
408 * snd_hda_get_codec_name - store the codec name
409 */
410void snd_hda_get_codec_name(struct hda_codec *codec,
411 char *name, int namelen)
412{
413 const struct hda_vendor_id *c;
414 const char *vendor = NULL;
415 u16 vendor_id = codec->vendor_id >> 16;
416 char tmp[16];
417
418 for (c = hda_vendor_ids; c->id; c++) {
419 if (c->id == vendor_id) {
420 vendor = c->name;
421 break;
422 }
423 }
424 if (! vendor) {
425 sprintf(tmp, "Generic %04x", vendor_id);
426 vendor = tmp;
427 }
428 if (codec->preset && codec->preset->name)
429 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
430 else
431 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
432}
433
434/*
435 * look for an AFG node
436 *
437 * return 0 if not found
438 */
439static int look_for_afg_node(struct hda_codec *codec)
440{
441 int i, total_nodes;
442 hda_nid_t nid;
443
444 total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
445 for (i = 0; i < total_nodes; i++, nid++) {
446 if ((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff) ==
447 AC_GRP_AUDIO_FUNCTION)
448 return nid;
449 }
450 return 0;
451}
452
453/*
454 * codec destructor
455 */
456static void snd_hda_codec_free(struct hda_codec *codec)
457{
458 if (! codec)
459 return;
460 list_del(&codec->list);
461 codec->bus->caddr_tbl[codec->addr] = NULL;
462 if (codec->patch_ops.free)
463 codec->patch_ops.free(codec);
464 kfree(codec);
465}
466
467static void init_amp_hash(struct hda_codec *codec);
468
469/**
470 * snd_hda_codec_new - create a HDA codec
471 * @bus: the bus to assign
472 * @codec_addr: the codec address
473 * @codecp: the pointer to store the generated codec
474 *
475 * Returns 0 if successful, or a negative error code.
476 */
477int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
478 struct hda_codec **codecp)
479{
480 struct hda_codec *codec;
481 char component[13];
482 int err;
483
484 snd_assert(bus, return -EINVAL);
485 snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
486
487 if (bus->caddr_tbl[codec_addr]) {
488 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
489 return -EBUSY;
490 }
491
492 codec = kcalloc(1, sizeof(*codec), GFP_KERNEL);
493 if (codec == NULL) {
494 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
495 return -ENOMEM;
496 }
497
498 codec->bus = bus;
499 codec->addr = codec_addr;
500 init_MUTEX(&codec->spdif_mutex);
501 init_amp_hash(codec);
502
503 list_add_tail(&codec->list, &bus->codec_list);
504 bus->caddr_tbl[codec_addr] = codec;
505
506 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
507 codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
508 codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
509
510 /* FIXME: support for multiple AFGs? */
511 codec->afg = look_for_afg_node(codec);
512 if (! codec->afg) {
680ff0ac 513 snd_printdd("hda_codec: no AFG node found\n");
1da177e4
LT		 514 snd_hda_codec_free(codec);
515 return -ENODEV;
516 }
517
518 codec->preset = find_codec_preset(codec);
519 if (! *bus->card->mixername)
520 snd_hda_get_codec_name(codec, bus->card->mixername,
521 sizeof(bus->card->mixername));
522
523 if (codec->preset && codec->preset->patch)
524 err = codec->preset->patch(codec);
525 else
526 err = snd_hda_parse_generic_codec(codec);
527 if (err < 0) {
528 snd_hda_codec_free(codec);
529 return err;
530 }
531
532 snd_hda_codec_proc_new(codec);
533
534 sprintf(component, "HDA:%08x", codec->vendor_id);
535 snd_component_add(codec->bus->card, component);
536
537 if (codecp)
538 *codecp = codec;
539 return 0;
540}
541
542/**
543 * snd_hda_codec_setup_stream - set up the codec for streaming
544 * @codec: the CODEC to set up
545 * @nid: the NID to set up
546 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
547 * @channel_id: channel id to pass, zero based.
548 * @format: stream format.
549 */
550void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
551 int channel_id, int format)
552{
d21b37ea
TI		 553 if (! nid)
554 return;
555
1da177e4
LT		 556 snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
557 nid, stream_tag, channel_id, format);
558 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
559 (stream_tag << 4) | channel_id);
560 msleep(1);
561 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
562}
563
564
565/*
566 * amp access functions
567 */
568
4a19faee
TI		 569/* FIXME: more better hash key? */
570#define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
1da177e4 571#define INFO_AMP_CAPS (1<<0)
4a19faee 572#define INFO_AMP_VOL(ch) (1 << (1 + (ch)))
1da177e4
LT		 573
574/* initialize the hash table */
575static void init_amp_hash(struct hda_codec *codec)
576{
577 memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
578 codec->num_amp_entries = 0;
579}
580
581/* query the hash. allocate an entry if not found. */
582static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
583{
584 u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
585 u16 cur = codec->amp_hash[idx];
586 struct hda_amp_info *info;
587
588 while (cur != 0xffff) {
589 info = &codec->amp_info[cur];
590 if (info->key == key)
591 return info;
592 cur = info->next;
593 }
594
595 /* add a new hash entry */
596 if (codec->num_amp_entries >= ARRAY_SIZE(codec->amp_info)) {
597 snd_printk(KERN_ERR "hda_codec: Tooooo many amps!\n");
598 return NULL;
599 }
600 cur = codec->num_amp_entries++;
601 info = &codec->amp_info[cur];
602 info->key = key;
603 info->status = 0; /* not initialized yet */
604 info->next = codec->amp_hash[idx];
605 codec->amp_hash[idx] = cur;
606
607 return info;
608}
609
610/*
611 * query AMP capabilities for the given widget and direction
612 */
613static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
614{
615 struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
616
617 if (! info)
618 return 0;
619 if (! (info->status & INFO_AMP_CAPS)) {
620 if (!(snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_AMP_OVRD))
621 nid = codec->afg;
622 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
623 AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
624 info->status |= INFO_AMP_CAPS;
625 }
626 return info->amp_caps;
627}
628
629/*
630 * read the current volume to info
4a19faee 631 * if the cache exists, read the cache value.
1da177e4 632 */
4a19faee 633static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
1da177e4
LT		 634 hda_nid_t nid, int ch, int direction, int index)
635{
636 u32 val, parm;
637
4a19faee
TI		 638 if (info->status & INFO_AMP_VOL(ch))
639 return info->vol[ch];
1da177e4
LT		 640
641 parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
642 parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
643 parm |= index;
644 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
645 info->vol[ch] = val & 0xff;
4a19faee
TI		 646 info->status |= INFO_AMP_VOL(ch);
647 return info->vol[ch];
1da177e4
LT		 648}
649
650/*
4a19faee 651 * write the current volume in info to the h/w and update the cache
1da177e4 652 */
4a19faee 653static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
1da177e4
LT		 654 hda_nid_t nid, int ch, int direction, int index, int val)
655{
656 u32 parm;
657
658 parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
659 parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
660 parm |= index << AC_AMP_SET_INDEX_SHIFT;
661 parm |= val;
662 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
4a19faee 663 info->vol[ch] = val;
1da177e4
LT		 664}
665
666/*
4a19faee 667 * read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
1da177e4 668 */
89c87bf8 669static int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int index)
1da177e4
LT		 670{
671 struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
672 if (! info)
673 return 0;
4a19faee 674 return get_vol_mute(codec, info, nid, ch, direction, index);
1da177e4
LT		 675}
676
4a19faee
TI		 677/*
678 * update the AMP value, mask = bit mask to set, val = the value
679 */
680static int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int idx, int mask, int val)
1da177e4
LT		 681{
682 struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
4a19faee 683
1da177e4
LT		 684 if (! info)
685 return 0;
4a19faee
TI		 686 val &= mask;
687 val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
1da177e4
LT		 688 if (info->vol[ch] == val && ! codec->in_resume)
689 return 0;
4a19faee 690 put_vol_mute(codec, info, nid, ch, direction, idx, val);
1da177e4
LT		 691 return 1;
692}
693
694
695/*
696 * AMP control callbacks
697 */
698/* retrieve parameters from private_value */
699#define get_amp_nid(kc) ((kc)->private_value & 0xffff)
700#define get_amp_channels(kc) (((kc)->private_value >> 16) & 0x3)
701#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
702#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
703
704/* volume */
705int snd_hda_mixer_amp_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
706{
707 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
708 u16 nid = get_amp_nid(kcontrol);
709 u8 chs = get_amp_channels(kcontrol);
710 int dir = get_amp_direction(kcontrol);
711 u32 caps;
712
713 caps = query_amp_caps(codec, nid, dir);
714 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
715 if (! caps) {
716 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
717 return -EINVAL;
718 }
719 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
720 uinfo->count = chs == 3 ? 2 : 1;
721 uinfo->value.integer.min = 0;
722 uinfo->value.integer.max = caps;
723 return 0;
724}
725
726int snd_hda_mixer_amp_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
727{
728 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
729 hda_nid_t nid = get_amp_nid(kcontrol);
730 int chs = get_amp_channels(kcontrol);
731 int dir = get_amp_direction(kcontrol);
732 int idx = get_amp_index(kcontrol);
733 long *valp = ucontrol->value.integer.value;
734
735 if (chs & 1)
736 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
737 if (chs & 2)
738 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
739 return 0;
740}
741
742int snd_hda_mixer_amp_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
743{
744 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
745 hda_nid_t nid = get_amp_nid(kcontrol);
746 int chs = get_amp_channels(kcontrol);
747 int dir = get_amp_direction(kcontrol);
748 int idx = get_amp_index(kcontrol);
1da177e4
LT		 749 long *valp = ucontrol->value.integer.value;
750 int change = 0;
751
4a19faee
TI		 752 if (chs & 1)
753 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
754 0x7f, *valp);
755 if (chs & 2)
756 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
757 0x7f, valp[1]);
1da177e4
LT		 758 return change;
759}
760
761/* switch */
762int snd_hda_mixer_amp_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
763{
764 int chs = get_amp_channels(kcontrol);
765
766 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
767 uinfo->count = chs == 3 ? 2 : 1;
768 uinfo->value.integer.min = 0;
769 uinfo->value.integer.max = 1;
770 return 0;
771}
772
773int snd_hda_mixer_amp_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
774{
775 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
776 hda_nid_t nid = get_amp_nid(kcontrol);
777 int chs = get_amp_channels(kcontrol);
778 int dir = get_amp_direction(kcontrol);
779 int idx = get_amp_index(kcontrol);
780 long *valp = ucontrol->value.integer.value;
781
782 if (chs & 1)
783 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
784 if (chs & 2)
785 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
786 return 0;
787}
788
789int snd_hda_mixer_amp_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
790{
791 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
792 hda_nid_t nid = get_amp_nid(kcontrol);
793 int chs = get_amp_channels(kcontrol);
794 int dir = get_amp_direction(kcontrol);
795 int idx = get_amp_index(kcontrol);
1da177e4
LT		 796 long *valp = ucontrol->value.integer.value;
797 int change = 0;
798
4a19faee
TI		 799 if (chs & 1)
800 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
801 0x80, *valp ? 0 : 0x80);
802 if (chs & 2)
803 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
804 0x80, valp[1] ? 0 : 0x80);
1da177e4
LT		 805 return change;
806}
807
808/*
809 * SPDIF out controls
810 */
811
812static int snd_hda_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
813{
814 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
815 uinfo->count = 1;
816 return 0;
817}
818
819static int snd_hda_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
820{
821 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
822 IEC958_AES0_NONAUDIO |
823 IEC958_AES0_CON_EMPHASIS_5015 |
824 IEC958_AES0_CON_NOT_COPYRIGHT;
825 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
826 IEC958_AES1_CON_ORIGINAL;
827 return 0;
828}
829
830static int snd_hda_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
831{
832 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
833 IEC958_AES0_NONAUDIO |
834 IEC958_AES0_PRO_EMPHASIS_5015;
835 return 0;
836}
837
838static int snd_hda_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
839{
840 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
841
842 ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
843 ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
844 ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
845 ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
846
847 return 0;
848}
849
850/* convert from SPDIF status bits to HDA SPDIF bits
851 * bit 0 (DigEn) is always set zero (to be filled later)
852 */
853static unsigned short convert_from_spdif_status(unsigned int sbits)
854{
855 unsigned short val = 0;
856
857 if (sbits & IEC958_AES0_PROFESSIONAL)
858 val |= 1 << 6;
859 if (sbits & IEC958_AES0_NONAUDIO)
860 val |= 1 << 5;
861 if (sbits & IEC958_AES0_PROFESSIONAL) {
862 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
863 val |= 1 << 3;
864 } else {
865 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
866 val |= 1 << 3;
867 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
868 val |= 1 << 4;
869 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
870 val |= 1 << 7;
871 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
872 }
873 return val;
874}
875
876/* convert to SPDIF status bits from HDA SPDIF bits
877 */
878static unsigned int convert_to_spdif_status(unsigned short val)
879{
880 unsigned int sbits = 0;
881
882 if (val & (1 << 5))
883 sbits |= IEC958_AES0_NONAUDIO;
884 if (val & (1 << 6))
885 sbits |= IEC958_AES0_PROFESSIONAL;
886 if (sbits & IEC958_AES0_PROFESSIONAL) {
887 if (sbits & (1 << 3))
888 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
889 } else {
890 if (val & (1 << 3))
891 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
892 if (! (val & (1 << 4)))
893 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
894 if (val & (1 << 7))
895 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
896 sbits |= val & (0x7f << 8);
897 }
898 return sbits;
899}
900
901static int snd_hda_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
902{
903 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
904 hda_nid_t nid = kcontrol->private_value;
905 unsigned short val;
906 int change;
907
908 down(&codec->spdif_mutex);
909 codec->spdif_status = ucontrol->value.iec958.status[0] |
910 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
911 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
912 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
913 val = convert_from_spdif_status(codec->spdif_status);
914 val |= codec->spdif_ctls & 1;
915 change = codec->spdif_ctls != val;
916 codec->spdif_ctls = val;
917
918 if (change || codec->in_resume) {
919 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
920 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
921 }
922
923 up(&codec->spdif_mutex);
924 return change;
925}
926
927static int snd_hda_spdif_out_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
928{
929 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
930 uinfo->count = 1;
931 uinfo->value.integer.min = 0;
932 uinfo->value.integer.max = 1;
933 return 0;
934}
935
936static int snd_hda_spdif_out_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
937{
938 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
939
940 ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
941 return 0;
942}
943
944static int snd_hda_spdif_out_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
945{
946 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
947 hda_nid_t nid = kcontrol->private_value;
948 unsigned short val;
949 int change;
950
951 down(&codec->spdif_mutex);
952 val = codec->spdif_ctls & ~1;
953 if (ucontrol->value.integer.value[0])
954 val |= 1;
955 change = codec->spdif_ctls != val;
956 if (change || codec->in_resume) {
957 codec->spdif_ctls = val;
958 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
959 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
960 AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
961 AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
962 }
963 up(&codec->spdif_mutex);
964 return change;
965}
966
967static snd_kcontrol_new_t dig_mixes[] = {
968 {
969 .access = SNDRV_CTL_ELEM_ACCESS_READ,
970 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
971 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
972 .info = snd_hda_spdif_mask_info,
973 .get = snd_hda_spdif_cmask_get,
974 },
975 {
976 .access = SNDRV_CTL_ELEM_ACCESS_READ,
977 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
978 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
979 .info = snd_hda_spdif_mask_info,
980 .get = snd_hda_spdif_pmask_get,
981 },
982 {
983 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
984 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
985 .info = snd_hda_spdif_mask_info,
986 .get = snd_hda_spdif_default_get,
987 .put = snd_hda_spdif_default_put,
988 },
989 {
990 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
991 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
992 .info = snd_hda_spdif_out_switch_info,
993 .get = snd_hda_spdif_out_switch_get,
994 .put = snd_hda_spdif_out_switch_put,
995 },
996 { } /* end */
997};
998
999/**
1000 * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1001 * @codec: the HDA codec
1002 * @nid: audio out widget NID
1003 *
1004 * Creates controls related with the SPDIF output.
1005 * Called from each patch supporting the SPDIF out.
1006 *
1007 * Returns 0 if successful, or a negative error code.
1008 */
1009int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1010{
1011 int err;
1012 snd_kcontrol_t *kctl;
1013 snd_kcontrol_new_t *dig_mix;
1014
1015 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1016 kctl = snd_ctl_new1(dig_mix, codec);
1017 kctl->private_value = nid;
1018 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1019 return err;
1020 }
1021 codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1022 codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1023 return 0;
1024}
1025
1026/*
1027 * SPDIF input
1028 */
1029
1030#define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
1031
1032static int snd_hda_spdif_in_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1033{
1034 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1035
1036 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1037 return 0;
1038}
1039
1040static int snd_hda_spdif_in_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1041{
1042 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1043 hda_nid_t nid = kcontrol->private_value;
1044 unsigned int val = !!ucontrol->value.integer.value[0];
1045 int change;
1046
1047 down(&codec->spdif_mutex);
1048 change = codec->spdif_in_enable != val;
1049 if (change || codec->in_resume) {
1050 codec->spdif_in_enable = val;
1051 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1052 }
1053 up(&codec->spdif_mutex);
1054 return change;
1055}
1056
1057static int snd_hda_spdif_in_status_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1058{
1059 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1060 hda_nid_t nid = kcontrol->private_value;
1061 unsigned short val;
1062 unsigned int sbits;
1063
1064 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1065 sbits = convert_to_spdif_status(val);
1066 ucontrol->value.iec958.status[0] = sbits;
1067 ucontrol->value.iec958.status[1] = sbits >> 8;
1068 ucontrol->value.iec958.status[2] = sbits >> 16;
1069 ucontrol->value.iec958.status[3] = sbits >> 24;
1070 return 0;
1071}
1072
1073static snd_kcontrol_new_t dig_in_ctls[] = {
1074 {
1075 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1076 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1077 .info = snd_hda_spdif_in_switch_info,
1078 .get = snd_hda_spdif_in_switch_get,
1079 .put = snd_hda_spdif_in_switch_put,
1080 },
1081 {
1082 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1083 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1084 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1085 .info = snd_hda_spdif_mask_info,
1086 .get = snd_hda_spdif_in_status_get,
1087 },
1088 { } /* end */
1089};
1090
1091/**
1092 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1093 * @codec: the HDA codec
1094 * @nid: audio in widget NID
1095 *
1096 * Creates controls related with the SPDIF input.
1097 * Called from each patch supporting the SPDIF in.
1098 *
1099 * Returns 0 if successful, or a negative error code.
1100 */
1101int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1102{
1103 int err;
1104 snd_kcontrol_t *kctl;
1105 snd_kcontrol_new_t *dig_mix;
1106
1107 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1108 kctl = snd_ctl_new1(dig_mix, codec);
1109 kctl->private_value = nid;
1110 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1111 return err;
1112 }
1113 codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1114 return 0;
1115}
1116
1117
1118/**
1119 * snd_hda_build_controls - build mixer controls
1120 * @bus: the BUS
1121 *
1122 * Creates mixer controls for each codec included in the bus.
1123 *
1124 * Returns 0 if successful, otherwise a negative error code.
1125 */
1126int snd_hda_build_controls(struct hda_bus *bus)
1127{
1128 struct list_head *p;
1129
1130 /* build controls */
1131 list_for_each(p, &bus->codec_list) {
1132 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1133 int err;
1134 if (! codec->patch_ops.build_controls)
1135 continue;
1136 err = codec->patch_ops.build_controls(codec);
1137 if (err < 0)
1138 return err;
1139 }
1140
1141 /* initialize */
1142 list_for_each(p, &bus->codec_list) {
1143 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1144 int err;
1145 if (! codec->patch_ops.init)
1146 continue;
1147 err = codec->patch_ops.init(codec);
1148 if (err < 0)
1149 return err;
1150 }
1151 return 0;
1152}
1153
1154
1155/*
1156 * stream formats
1157 */
1158static unsigned int rate_bits[][3] = {
1159 /* rate in Hz, ALSA rate bitmask, HDA format value */
1160 { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1161 { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1162 { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1163 { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1164 { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1165 { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1166 { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1167 { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1168 { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1169 { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1170 { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1171 { 0 }
1172};
1173
1174/**
1175 * snd_hda_calc_stream_format - calculate format bitset
1176 * @rate: the sample rate
1177 * @channels: the number of channels
1178 * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1179 * @maxbps: the max. bps
1180 *
1181 * Calculate the format bitset from the given rate, channels and th PCM format.
1182 *
1183 * Return zero if invalid.
1184 */
1185unsigned int snd_hda_calc_stream_format(unsigned int rate,
1186 unsigned int channels,
1187 unsigned int format,
1188 unsigned int maxbps)
1189{
1190 int i;
1191 unsigned int val = 0;
1192
1193 for (i = 0; rate_bits[i][0]; i++)
1194 if (rate_bits[i][0] == rate) {
1195 val = rate_bits[i][2];
1196 break;
1197 }
1198 if (! rate_bits[i][0]) {
1199 snd_printdd("invalid rate %d\n", rate);
1200 return 0;
1201 }
1202
1203 if (channels == 0 || channels > 8) {
1204 snd_printdd("invalid channels %d\n", channels);
1205 return 0;
1206 }
1207 val |= channels - 1;
1208
1209 switch (snd_pcm_format_width(format)) {
1210 case 8: val |= 0x00; break;
1211 case 16: val |= 0x10; break;
1212 case 20:
1213 case 24:
1214 case 32:
1215 if (maxbps >= 32)
1216 val |= 0x40;
1217 else if (maxbps >= 24)
1218 val |= 0x30;
1219 else
1220 val |= 0x20;
1221 break;
1222 default:
1223 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1224 return 0;
1225 }
1226
1227 return val;
1228}
1229
1230/**
1231 * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1232 * @codec: the HDA codec
1233 * @nid: NID to query
1234 * @ratesp: the pointer to store the detected rate bitflags
1235 * @formatsp: the pointer to store the detected formats
1236 * @bpsp: the pointer to store the detected format widths
1237 *
1238 * Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
1239 * or @bsps argument is ignored.
1240 *
1241 * Returns 0 if successful, otherwise a negative error code.
1242 */
1243int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1244 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1245{
1246 int i;
1247 unsigned int val, streams;
1248
1249 val = 0;
1250 if (nid != codec->afg &&
1251 snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
1252 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1253 if (val == -1)
1254 return -EIO;
1255 }
1256 if (! val)
1257 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1258
1259 if (ratesp) {
1260 u32 rates = 0;
1261 for (i = 0; rate_bits[i][0]; i++) {
1262 if (val & (1 << i))
1263 rates |= rate_bits[i][1];
1264 }
1265 *ratesp = rates;
1266 }
1267
1268 if (formatsp || bpsp) {
1269 u64 formats = 0;
1270 unsigned int bps;
1271 unsigned int wcaps;
1272
1273 wcaps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
1274 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1275 if (streams == -1)
1276 return -EIO;
1277 if (! streams) {
1278 streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1279 if (streams == -1)
1280 return -EIO;
1281 }
1282
1283 bps = 0;
1284 if (streams & AC_SUPFMT_PCM) {
1285 if (val & AC_SUPPCM_BITS_8) {
1286 formats |= SNDRV_PCM_FMTBIT_U8;
1287 bps = 8;
1288 }
1289 if (val & AC_SUPPCM_BITS_16) {
1290 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1291 bps = 16;
1292 }
1293 if (wcaps & AC_WCAP_DIGITAL) {
1294 if (val & AC_SUPPCM_BITS_32)
1295 formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1296 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1297 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1298 if (val & AC_SUPPCM_BITS_24)
1299 bps = 24;
1300 else if (val & AC_SUPPCM_BITS_20)
1301 bps = 20;
1302 } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1303 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1304 if (val & AC_SUPPCM_BITS_32)
1305 bps = 32;
1306 else if (val & AC_SUPPCM_BITS_20)
1307 bps = 20;
1308 else if (val & AC_SUPPCM_BITS_24)
1309 bps = 24;
1310 }
1311 }
1312 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1313 formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1314 bps = 32;
1315 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1316 /* temporary hack: we have still no proper support
1317 * for the direct AC3 stream...
1318 */
1319 formats |= SNDRV_PCM_FMTBIT_U8;
1320 bps = 8;
1321 }
1322 if (formatsp)
1323 *formatsp = formats;
1324 if (bpsp)
1325 *bpsp = bps;
1326 }
1327
1328 return 0;
1329}
1330
1331/**
1332 * snd_hda_is_supported_format - check whether the given node supports the format val
1333 *
1334 * Returns 1 if supported, 0 if not.
1335 */
1336int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1337 unsigned int format)
1338{
1339 int i;
1340 unsigned int val = 0, rate, stream;
1341
1342 if (nid != codec->afg &&
1343 snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
1344 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1345 if (val == -1)
1346 return 0;
1347 }
1348 if (! val) {
1349 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1350 if (val == -1)
1351 return 0;
1352 }
1353
1354 rate = format & 0xff00;
1355 for (i = 0; rate_bits[i][0]; i++)
1356 if (rate_bits[i][2] == rate) {
1357 if (val & (1 << i))
1358 break;
1359 return 0;
1360 }
1361 if (! rate_bits[i][0])
1362 return 0;
1363
1364 stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1365 if (stream == -1)
1366 return 0;
1367 if (! stream && nid != codec->afg)
1368 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1369 if (! stream || stream == -1)
1370 return 0;
1371
1372 if (stream & AC_SUPFMT_PCM) {
1373 switch (format & 0xf0) {
1374 case 0x00:
1375 if (! (val & AC_SUPPCM_BITS_8))
1376 return 0;
1377 break;
1378 case 0x10:
1379 if (! (val & AC_SUPPCM_BITS_16))
1380 return 0;
1381 break;
1382 case 0x20:
1383 if (! (val & AC_SUPPCM_BITS_20))
1384 return 0;
1385 break;
1386 case 0x30:
1387 if (! (val & AC_SUPPCM_BITS_24))
1388 return 0;
1389 break;
1390 case 0x40:
1391 if (! (val & AC_SUPPCM_BITS_32))
1392 return 0;
1393 break;
1394 default:
1395 return 0;
1396 }
1397 } else {
1398 /* FIXME: check for float32 and AC3? */
1399 }
1400
1401 return 1;
1402}
1403
1404/*
1405 * PCM stuff
1406 */
1407static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1408 struct hda_codec *codec,
1409 snd_pcm_substream_t *substream)
1410{
1411 return 0;
1412}
1413
1414static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1415 struct hda_codec *codec,
1416 unsigned int stream_tag,
1417 unsigned int format,
1418 snd_pcm_substream_t *substream)
1419{
1420 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1421 return 0;
1422}
1423
1424static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1425 struct hda_codec *codec,
1426 snd_pcm_substream_t *substream)
1427{
1428 snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1429 return 0;
1430}
1431
1432static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1433{
1434 if (info->nid) {
1435 /* query support PCM information from the given NID */
1436 if (! info->rates || ! info->formats)
1437 snd_hda_query_supported_pcm(codec, info->nid,
1438 info->rates ? NULL : &info->rates,
1439 info->formats ? NULL : &info->formats,
1440 info->maxbps ? NULL : &info->maxbps);
1441 }
1442 if (info->ops.open == NULL)
1443 info->ops.open = hda_pcm_default_open_close;
1444 if (info->ops.close == NULL)
1445 info->ops.close = hda_pcm_default_open_close;
1446 if (info->ops.prepare == NULL) {
1447 snd_assert(info->nid, return -EINVAL);
1448 info->ops.prepare = hda_pcm_default_prepare;
1449 }
1da177e4
LT		 1450 if (info->ops.cleanup == NULL) {
1451 snd_assert(info->nid, return -EINVAL);
1452 info->ops.cleanup = hda_pcm_default_cleanup;
1453 }
1454 return 0;
1455}
1456
1457/**
1458 * snd_hda_build_pcms - build PCM information
1459 * @bus: the BUS
1460 *
1461 * Create PCM information for each codec included in the bus.
1462 *
1463 * The build_pcms codec patch is requested to set up codec->num_pcms and
1464 * codec->pcm_info properly. The array is referred by the top-level driver
1465 * to create its PCM instances.
1466 * The allocated codec->pcm_info should be released in codec->patch_ops.free
1467 * callback.
1468 *
1469 * At least, substreams, channels_min and channels_max must be filled for
1470 * each stream. substreams = 0 indicates that the stream doesn't exist.
1471 * When rates and/or formats are zero, the supported values are queried
1472 * from the given nid. The nid is used also by the default ops.prepare
1473 * and ops.cleanup callbacks.
1474 *
1475 * The driver needs to call ops.open in its open callback. Similarly,
1476 * ops.close is supposed to be called in the close callback.
1477 * ops.prepare should be called in the prepare or hw_params callback
1478 * with the proper parameters for set up.
1479 * ops.cleanup should be called in hw_free for clean up of streams.
1480 *
1481 * This function returns 0 if successfull, or a negative error code.
1482 */
1483int snd_hda_build_pcms(struct hda_bus *bus)
1484{
1485 struct list_head *p;
1486
1487 list_for_each(p, &bus->codec_list) {
1488 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1489 unsigned int pcm, s;
1490 int err;
1491 if (! codec->patch_ops.build_pcms)
1492 continue;
1493 err = codec->patch_ops.build_pcms(codec);
1494 if (err < 0)
1495 return err;
1496 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1497 for (s = 0; s < 2; s++) {
1498 struct hda_pcm_stream *info;
1499 info = &codec->pcm_info[pcm].stream[s];
1500 if (! info->substreams)
1501 continue;
1502 err = set_pcm_default_values(codec, info);
1503 if (err < 0)
1504 return err;
1505 }
1506 }
1507 }
1508 return 0;
1509}
1510
1511
1512/**
1513 * snd_hda_check_board_config - compare the current codec with the config table
1514 * @codec: the HDA codec
1515 * @tbl: configuration table, terminated by null entries
1516 *
1517 * Compares the modelname or PCI subsystem id of the current codec with the
1518 * given configuration table. If a matching entry is found, returns its
1519 * config value (supposed to be 0 or positive).
1520 *
1521 * If no entries are matching, the function returns a negative value.
1522 */
e9edcee0 1523int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1da177e4 1524{
e9edcee0 1525 const struct hda_board_config *c;
1da177e4
LT		 1526
1527 if (codec->bus->modelname) {
7291548d 1528 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1da177e4
LT		 1529 if (c->modelname &&
1530 ! strcmp(codec->bus->modelname, c->modelname)) {
1531 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1532 return c->config;
1533 }
1534 }
1535 }
1536
1537 if (codec->bus->pci) {
1538 u16 subsystem_vendor, subsystem_device;
1539 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1540 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
7291548d
TI		 1541 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1542 if (c->pci_subvendor == subsystem_vendor &&
5ecd7022
TI		 1543 (! c->pci_subdevice /* all match */||
1544 (c->pci_subdevice == subsystem_device)))
1da177e4
LT		 1545 return c->config;
1546 }
1547 }
1548 return -1;
1549}
1550
1551/**
1552 * snd_hda_add_new_ctls - create controls from the array
1553 * @codec: the HDA codec
1554 * @knew: the array of snd_kcontrol_new_t
1555 *
1556 * This helper function creates and add new controls in the given array.
1557 * The array must be terminated with an empty entry as terminator.
1558 *
1559 * Returns 0 if successful, or a negative error code.
1560 */
1561int snd_hda_add_new_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
1562{
1563 int err;
1564
1565 for (; knew->name; knew++) {
1566 err = snd_ctl_add(codec->bus->card, snd_ctl_new1(knew, codec));
1567 if (err < 0)
1568 return err;
1569 }
1570 return 0;
1571}
1572
1573
1574/*
1575 * input MUX helper
1576 */
1577int snd_hda_input_mux_info(const struct hda_input_mux *imux, snd_ctl_elem_info_t *uinfo)
1578{
1579 unsigned int index;
1580
1581 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1582 uinfo->count = 1;
1583 uinfo->value.enumerated.items = imux->num_items;
1584 index = uinfo->value.enumerated.item;
1585 if (index >= imux->num_items)
1586 index = imux->num_items - 1;
1587 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1588 return 0;
1589}
1590
1591int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1592 snd_ctl_elem_value_t *ucontrol, hda_nid_t nid,
1593 unsigned int *cur_val)
1594{
1595 unsigned int idx;
1596
1597 idx = ucontrol->value.enumerated.item[0];
1598 if (idx >= imux->num_items)
1599 idx = imux->num_items - 1;
1600 if (*cur_val == idx && ! codec->in_resume)
1601 return 0;
1602 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1603 imux->items[idx].index);
1604 *cur_val = idx;
1605 return 1;
1606}
1607
1608
1609/*
1610 * Multi-channel / digital-out PCM helper functions
1611 */
1612
1613/*
1614 * open the digital out in the exclusive mode
1615 */
1616int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1617{
1618 down(&codec->spdif_mutex);
1619 if (mout->dig_out_used) {
1620 up(&codec->spdif_mutex);
1621 return -EBUSY; /* already being used */
1622 }
1623 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1624 up(&codec->spdif_mutex);
1625 return 0;
1626}
1627
1628/*
1629 * release the digital out
1630 */
1631int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1632{
1633 down(&codec->spdif_mutex);
1634 mout->dig_out_used = 0;
1635 up(&codec->spdif_mutex);
1636 return 0;
1637}
1638
1639/*
1640 * set up more restrictions for analog out
1641 */
1642int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1643 snd_pcm_substream_t *substream)
1644{
1645 substream->runtime->hw.channels_max = mout->max_channels;
1646 return snd_pcm_hw_constraint_step(substream->runtime, 0,
1647 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1648}
1649
1650/*
1651 * set up the i/o for analog out
1652 * when the digital out is available, copy the front out to digital out, too.
1653 */
1654int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1655 unsigned int stream_tag,
1656 unsigned int format,
1657 snd_pcm_substream_t *substream)
1658{
1659 hda_nid_t *nids = mout->dac_nids;
1660 int chs = substream->runtime->channels;
1661 int i;
1662
1663 down(&codec->spdif_mutex);
1664 if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1665 if (chs == 2 &&
1666 snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1667 ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1668 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1669 /* setup digital receiver */
1670 snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1671 stream_tag, 0, format);
1672 } else {
1673 mout->dig_out_used = 0;
1674 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1675 }
1676 }
1677 up(&codec->spdif_mutex);
1678
1679 /* front */
1680 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1681 if (mout->hp_nid)
1682 /* headphone out will just decode front left/right (stereo) */
1683 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1684 /* surrounds */
1685 for (i = 1; i < mout->num_dacs; i++) {
4b3acaf5 1686 if (chs >= (i + 1) * 2) /* independent out */
1da177e4
LT		 1687 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1688 format);
4b3acaf5
TI		 1689 else /* copy front */
1690 snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1691 format);
1da177e4
LT		 1692 }
1693 return 0;
1694}
1695
1696/*
1697 * clean up the setting for analog out
1698 */
1699int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1700{
1701 hda_nid_t *nids = mout->dac_nids;
1702 int i;
1703
1704 for (i = 0; i < mout->num_dacs; i++)
1705 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1706 if (mout->hp_nid)
1707 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1708 down(&codec->spdif_mutex);
1709 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1710 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1711 mout->dig_out_used = 0;
1712 }
1713 up(&codec->spdif_mutex);
1714 return 0;
1715}
1716
e9edcee0
TI		 1717/*
1718 * Helper for automatic ping configuration
1719 */
1720/* parse all pin widgets and store the useful pin nids to cfg */
1721int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg)
1722{
1723 hda_nid_t nid, nid_start;
1724 int i, j, nodes;
1725 short seq, sequences[4], assoc_line_out;
1726
1727 memset(cfg, 0, sizeof(*cfg));
1728
1729 memset(sequences, 0, sizeof(sequences));
1730 assoc_line_out = 0;
1731
1732 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
1733 for (nid = nid_start; nid < nodes + nid_start; nid++) {
1734 unsigned int wid_caps = snd_hda_param_read(codec, nid,
1735 AC_PAR_AUDIO_WIDGET_CAP);
1736 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
1737 unsigned int def_conf;
1738 short assoc, loc;
1739
1740 /* read all default configuration for pin complex */
1741 if (wid_type != AC_WID_PIN)
1742 continue;
1743 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
1744 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
1745 continue;
1746 loc = get_defcfg_location(def_conf);
1747 switch (get_defcfg_device(def_conf)) {
1748 case AC_JACK_LINE_OUT:
1749 case AC_JACK_SPEAKER:
1750 seq = get_defcfg_sequence(def_conf);
1751 assoc = get_defcfg_association(def_conf);
1752 if (! assoc)
1753 continue;
1754 if (! assoc_line_out)
1755 assoc_line_out = assoc;
1756 else if (assoc_line_out != assoc)
1757 continue;
1758 if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
1759 continue;
1760 cfg->line_out_pins[cfg->line_outs] = nid;
1761 sequences[cfg->line_outs] = seq;
1762 cfg->line_outs++;
1763 break;
1764 case AC_JACK_HP_OUT:
1765 cfg->hp_pin = nid;
1766 break;
1767 case AC_JACK_MIC_IN:
1768 if (loc == AC_JACK_LOC_FRONT)
1769 cfg->input_pins[AUTO_PIN_FRONT_MIC] = nid;
1770 else
1771 cfg->input_pins[AUTO_PIN_MIC] = nid;
1772 break;
1773 case AC_JACK_LINE_IN:
1774 if (loc == AC_JACK_LOC_FRONT)
1775 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
1776 else
1777 cfg->input_pins[AUTO_PIN_LINE] = nid;
1778 break;
1779 case AC_JACK_CD:
1780 cfg->input_pins[AUTO_PIN_CD] = nid;
1781 break;
1782 case AC_JACK_AUX:
1783 cfg->input_pins[AUTO_PIN_AUX] = nid;
1784 break;
1785 case AC_JACK_SPDIF_OUT:
1786 cfg->dig_out_pin = nid;
1787 break;
1788 case AC_JACK_SPDIF_IN:
1789 cfg->dig_in_pin = nid;
1790 break;
1791 }
1792 }
1793
1794 /* sort by sequence */
1795 for (i = 0; i < cfg->line_outs; i++)
1796 for (j = i + 1; j < cfg->line_outs; j++)
1797 if (sequences[i] > sequences[j]) {
1798 seq = sequences[i];
1799 sequences[i] = sequences[j];
1800 sequences[j] = seq;
1801 nid = cfg->line_out_pins[i];
1802 cfg->line_out_pins[i] = cfg->line_out_pins[j];
1803 cfg->line_out_pins[j] = nid;
1804 }
1805
1806 /* Swap surround and CLFE: the association order is front/CLFE/surr/back */
1807 if (cfg->line_outs >= 3) {
1808 nid = cfg->line_out_pins[1];
1809 cfg->line_out_pins[1] = cfg->line_out_pins[2];
1810 cfg->line_out_pins[2] = nid;
1811 }
1812
1813 return 0;
1814}
1815
1da177e4
LT		 1816#ifdef CONFIG_PM
1817/*
1818 * power management
1819 */
1820
1821/**
1822 * snd_hda_suspend - suspend the codecs
1823 * @bus: the HDA bus
1824 * @state: suspsend state
1825 *
1826 * Returns 0 if successful.
1827 */
1828int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
1829{
1830 struct list_head *p;
1831
1832 /* FIXME: should handle power widget capabilities */
1833 list_for_each(p, &bus->codec_list) {
1834 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1835 if (codec->patch_ops.suspend)
1836 codec->patch_ops.suspend(codec, state);
1837 }
1838 return 0;
1839}
1840
1841/**
1842 * snd_hda_resume - resume the codecs
1843 * @bus: the HDA bus
1844 * @state: resume state
1845 *
1846 * Returns 0 if successful.
1847 */
1848int snd_hda_resume(struct hda_bus *bus)
1849{
1850 struct list_head *p;
1851
1852 list_for_each(p, &bus->codec_list) {
1853 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1854 if (codec->patch_ops.resume)
1855 codec->patch_ops.resume(codec);
1856 }
1857 return 0;
1858}
1859
1860/**
1861 * snd_hda_resume_ctls - resume controls in the new control list
1862 * @codec: the HDA codec
1863 * @knew: the array of snd_kcontrol_new_t
1864 *
1865 * This function resumes the mixer controls in the snd_kcontrol_new_t array,
1866 * originally for snd_hda_add_new_ctls().
1867 * The array must be terminated with an empty entry as terminator.
1868 */
1869int snd_hda_resume_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
1870{
1871 snd_ctl_elem_value_t *val;
1872
1873 val = kmalloc(sizeof(*val), GFP_KERNEL);
1874 if (! val)
1875 return -ENOMEM;
1876 codec->in_resume = 1;
1877 for (; knew->name; knew++) {
1878 int i, count;
1879 count = knew->count ? knew->count : 1;
1880 for (i = 0; i < count; i++) {
1881 memset(val, 0, sizeof(*val));
1882 val->id.iface = knew->iface;
1883 val->id.device = knew->device;
1884 val->id.subdevice = knew->subdevice;
1885 strcpy(val->id.name, knew->name);
1886 val->id.index = knew->index ? knew->index : i;
1887 /* Assume that get callback reads only from cache,
1888 * not accessing to the real hardware
1889 */
1890 if (snd_ctl_elem_read(codec->bus->card, val) < 0)
1891 continue;
1892 snd_ctl_elem_write(codec->bus->card, NULL, val);
1893 }
1894 }
1895 codec->in_resume = 0;
1896 kfree(val);
1897 return 0;
1898}
1899
1900/**
1901 * snd_hda_resume_spdif_out - resume the digital out
1902 * @codec: the HDA codec
1903 */
1904int snd_hda_resume_spdif_out(struct hda_codec *codec)
1905{
1906 return snd_hda_resume_ctls(codec, dig_mixes);
1907}
1908
1909/**
1910 * snd_hda_resume_spdif_in - resume the digital in
1911 * @codec: the HDA codec
1912 */
1913int snd_hda_resume_spdif_in(struct hda_codec *codec)
1914{
1915 return snd_hda_resume_ctls(codec, dig_in_ctls);
1916}
1917#endif
1918
1919/*
1920 * symbols exported for controller modules
1921 */
1922EXPORT_SYMBOL(snd_hda_codec_read);
1923EXPORT_SYMBOL(snd_hda_codec_write);
1924EXPORT_SYMBOL(snd_hda_sequence_write);
1925EXPORT_SYMBOL(snd_hda_get_sub_nodes);
1926EXPORT_SYMBOL(snd_hda_queue_unsol_event);
1927EXPORT_SYMBOL(snd_hda_bus_new);
1928EXPORT_SYMBOL(snd_hda_codec_new);
1929EXPORT_SYMBOL(snd_hda_codec_setup_stream);
1930EXPORT_SYMBOL(snd_hda_calc_stream_format);
1931EXPORT_SYMBOL(snd_hda_build_pcms);
1932EXPORT_SYMBOL(snd_hda_build_controls);
1933#ifdef CONFIG_PM
1934EXPORT_SYMBOL(snd_hda_suspend);
1935EXPORT_SYMBOL(snd_hda_resume);
1936#endif
1937
1938/*
1939 * INIT part
1940 */
1941
1942static int __init alsa_hda_init(void)
1943{
1944 return 0;
1945}
1946
1947static void __exit alsa_hda_exit(void)
1948{
1949}
1950
1951module_init(alsa_hda_init)
1952module_exit(alsa_hda_exit)
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