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[ALSA] hda-codec - Fix Conexant 5045 volumes
[deliverable/linux.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>
62932df8 27#include <linux/mutex.h>
1da177e4
LT		 28#include <sound/core.h>
29#include "hda_codec.h"
30#include <sound/asoundef.h>
302e9c5a 31#include <sound/tlv.h>
1da177e4
LT		 32#include <sound/initval.h>
33#include "hda_local.h"
2807314d 34#include <sound/hda_hwdep.h>
1da177e4 35
cb53c626
TI		 36#ifdef CONFIG_SND_HDA_POWER_SAVE
37/* define this option here to hide as static */
7a5a27cf 38static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
cb53c626
TI		 39module_param(power_save, int, 0644);
40MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
41 "(in second, 0 = disable).");
42#endif
1da177e4 43
1da177e4
LT		 44/*
45 * vendor / preset table
46 */
47
48struct hda_vendor_id {
49 unsigned int id;
50 const char *name;
51};
52
53/* codec vendor labels */
54static struct hda_vendor_id hda_vendor_ids[] = {
55 { 0x10ec, "Realtek" },
a9226251 56 { 0x1057, "Motorola" },
c577b8a1 57 { 0x1106, "VIA" },
54b903ec 58 { 0x11d4, "Analog Devices" },
1da177e4 59 { 0x13f6, "C-Media" },
a9226251 60 { 0x14f1, "Conexant" },
1da177e4 61 { 0x434d, "C-Media" },
2f2f4251 62 { 0x8384, "SigmaTel" },
1da177e4
LT		 63 {} /* terminator */
64};
65
66/* codec presets */
67#include "hda_patch.h"
68
69
cb53c626
TI		 70#ifdef CONFIG_SND_HDA_POWER_SAVE
71static void hda_power_work(struct work_struct *work);
72static void hda_keep_power_on(struct hda_codec *codec);
73#else
74static inline void hda_keep_power_on(struct hda_codec *codec) {}
75#endif
76
1da177e4
LT		 77/**
78 * snd_hda_codec_read - send a command and get the response
79 * @codec: the HDA codec
80 * @nid: NID to send the command
81 * @direct: direct flag
82 * @verb: the verb to send
83 * @parm: the parameter for the verb
84 *
85 * Send a single command and read the corresponding response.
86 *
87 * Returns the obtained response value, or -1 for an error.
88 */
0ba21762
TI		 89unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
90 int direct,
1da177e4
LT		 91 unsigned int verb, unsigned int parm)
92{
93 unsigned int res;
cb53c626 94 snd_hda_power_up(codec);
62932df8 95 mutex_lock(&codec->bus->cmd_mutex);
0ba21762 96 if (!codec->bus->ops.command(codec, nid, direct, verb, parm))
1da177e4
LT		 97 res = codec->bus->ops.get_response(codec);
98 else
99 res = (unsigned int)-1;
62932df8 100 mutex_unlock(&codec->bus->cmd_mutex);
cb53c626 101 snd_hda_power_down(codec);
1da177e4
LT		 102 return res;
103}
104
105/**
106 * snd_hda_codec_write - send a single command without waiting for response
107 * @codec: the HDA codec
108 * @nid: NID to send the command
109 * @direct: direct flag
110 * @verb: the verb to send
111 * @parm: the parameter for the verb
112 *
113 * Send a single command without waiting for response.
114 *
115 * Returns 0 if successful, or a negative error code.
116 */
117int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
118 unsigned int verb, unsigned int parm)
119{
120 int err;
cb53c626 121 snd_hda_power_up(codec);
62932df8 122 mutex_lock(&codec->bus->cmd_mutex);
1da177e4 123 err = codec->bus->ops.command(codec, nid, direct, verb, parm);
62932df8 124 mutex_unlock(&codec->bus->cmd_mutex);
cb53c626 125 snd_hda_power_down(codec);
1da177e4
LT		 126 return err;
127}
128
129/**
130 * snd_hda_sequence_write - sequence writes
131 * @codec: the HDA codec
132 * @seq: VERB array to send
133 *
134 * Send the commands sequentially from the given array.
135 * The array must be terminated with NID=0.
136 */
137void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
138{
139 for (; seq->nid; seq++)
140 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
141}
142
143/**
144 * snd_hda_get_sub_nodes - get the range of sub nodes
145 * @codec: the HDA codec
146 * @nid: NID to parse
147 * @start_id: the pointer to store the start NID
148 *
149 * Parse the NID and store the start NID of its sub-nodes.
150 * Returns the number of sub-nodes.
151 */
0ba21762
TI		 152int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
153 hda_nid_t *start_id)
1da177e4
LT		 154{
155 unsigned int parm;
156
157 parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
e8a7f136
DT		 158 if (parm == -1)
159 return 0;
1da177e4
LT		 160 *start_id = (parm >> 16) & 0x7fff;
161 return (int)(parm & 0x7fff);
162}
163
164/**
165 * snd_hda_get_connections - get connection list
166 * @codec: the HDA codec
167 * @nid: NID to parse
168 * @conn_list: connection list array
169 * @max_conns: max. number of connections to store
170 *
171 * Parses the connection list of the given widget and stores the list
172 * of NIDs.
173 *
174 * Returns the number of connections, or a negative error code.
175 */
176int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
177 hda_nid_t *conn_list, int max_conns)
178{
179 unsigned int parm;
54d17403 180 int i, conn_len, conns;
1da177e4 181 unsigned int shift, num_elems, mask;
54d17403 182 hda_nid_t prev_nid;
1da177e4
LT		 183
184 snd_assert(conn_list && max_conns > 0, return -EINVAL);
185
186 parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
187 if (parm & AC_CLIST_LONG) {
188 /* long form */
189 shift = 16;
190 num_elems = 2;
191 } else {
192 /* short form */
193 shift = 8;
194 num_elems = 4;
195 }
196 conn_len = parm & AC_CLIST_LENGTH;
1da177e4
LT		 197 mask = (1 << (shift-1)) - 1;
198
0ba21762 199 if (!conn_len)
1da177e4
LT		 200 return 0; /* no connection */
201
202 if (conn_len == 1) {
203 /* single connection */
0ba21762
TI		 204 parm = snd_hda_codec_read(codec, nid, 0,
205 AC_VERB_GET_CONNECT_LIST, 0);
1da177e4
LT		 206 conn_list[0] = parm & mask;
207 return 1;
208 }
209
210 /* multi connection */
211 conns = 0;
54d17403
TI		 212 prev_nid = 0;
213 for (i = 0; i < conn_len; i++) {
214 int range_val;
215 hda_nid_t val, n;
216
217 if (i % num_elems == 0)
218 parm = snd_hda_codec_read(codec, nid, 0,
219 AC_VERB_GET_CONNECT_LIST, i);
0ba21762 220 range_val = !!(parm & (1 << (shift-1))); /* ranges */
54d17403
TI		 221 val = parm & mask;
222 parm >>= shift;
223 if (range_val) {
224 /* ranges between the previous and this one */
0ba21762
TI		 225 if (!prev_nid || prev_nid >= val) {
226 snd_printk(KERN_WARNING "hda_codec: "
227 "invalid dep_range_val %x:%x\n",
228 prev_nid, val);
54d17403
TI		 229 continue;
230 }
231 for (n = prev_nid + 1; n <= val; n++) {
232 if (conns >= max_conns) {
0ba21762
TI		 233 snd_printk(KERN_ERR
234 "Too many connections\n");
1da177e4 235 return -EINVAL;
54d17403
TI		 236 }
237 conn_list[conns++] = n;
1da177e4 238 }
54d17403
TI		 239 } else {
240 if (conns >= max_conns) {
241 snd_printk(KERN_ERR "Too many connections\n");
242 return -EINVAL;
243 }
244 conn_list[conns++] = val;
1da177e4 245 }
54d17403 246 prev_nid = val;
1da177e4
LT		 247 }
248 return conns;
249}
250
251
252/**
253 * snd_hda_queue_unsol_event - add an unsolicited event to queue
254 * @bus: the BUS
255 * @res: unsolicited event (lower 32bit of RIRB entry)
256 * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
257 *
258 * Adds the given event to the queue. The events are processed in
259 * the workqueue asynchronously. Call this function in the interrupt
260 * hanlder when RIRB receives an unsolicited event.
261 *
262 * Returns 0 if successful, or a negative error code.
263 */
264int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
265{
266 struct hda_bus_unsolicited *unsol;
267 unsigned int wp;
268
0ba21762
TI		 269 unsol = bus->unsol;
270 if (!unsol)
1da177e4
LT		 271 return 0;
272
273 wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
274 unsol->wp = wp;
275
276 wp <<= 1;
277 unsol->queue[wp] = res;
278 unsol->queue[wp + 1] = res_ex;
279
e250af29 280 schedule_work(&unsol->work);
1da177e4
LT		 281
282 return 0;
283}
284
285/*
286 * process queueud unsolicited events
287 */
c4028958 288static void process_unsol_events(struct work_struct *work)
1da177e4 289{
c4028958
DH		 290 struct hda_bus_unsolicited *unsol =
291 container_of(work, struct hda_bus_unsolicited, work);
292 struct hda_bus *bus = unsol->bus;
1da177e4
LT		 293 struct hda_codec *codec;
294 unsigned int rp, caddr, res;
295
296 while (unsol->rp != unsol->wp) {
297 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
298 unsol->rp = rp;
299 rp <<= 1;
300 res = unsol->queue[rp];
301 caddr = unsol->queue[rp + 1];
0ba21762 302 if (!(caddr & (1 << 4))) /* no unsolicited event? */
1da177e4
LT		 303 continue;
304 codec = bus->caddr_tbl[caddr & 0x0f];
305 if (codec && codec->patch_ops.unsol_event)
306 codec->patch_ops.unsol_event(codec, res);
307 }
308}
309
310/*
311 * initialize unsolicited queue
312 */
756e2b01 313static int __devinit init_unsol_queue(struct hda_bus *bus)
1da177e4
LT		 314{
315 struct hda_bus_unsolicited *unsol;
316
9f146bb6
TI		 317 if (bus->unsol) /* already initialized */
318 return 0;
319
e560d8d8 320 unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
0ba21762
TI		 321 if (!unsol) {
322 snd_printk(KERN_ERR "hda_codec: "
323 "can't allocate unsolicited queue\n");
1da177e4
LT		 324 return -ENOMEM;
325 }
c4028958
DH		 326 INIT_WORK(&unsol->work, process_unsol_events);
327 unsol->bus = bus;
1da177e4
LT		 328 bus->unsol = unsol;
329 return 0;
330}
331
332/*
333 * destructor
334 */
335static void snd_hda_codec_free(struct hda_codec *codec);
336
337static int snd_hda_bus_free(struct hda_bus *bus)
338{
0ba21762 339 struct hda_codec *codec, *n;
1da177e4 340
0ba21762 341 if (!bus)
1da177e4
LT		 342 return 0;
343 if (bus->unsol) {
e250af29 344 flush_scheduled_work();
1da177e4
LT		 345 kfree(bus->unsol);
346 }
0ba21762 347 list_for_each_entry_safe(codec, n, &bus->codec_list, list) {
1da177e4
LT		 348 snd_hda_codec_free(codec);
349 }
350 if (bus->ops.private_free)
351 bus->ops.private_free(bus);
352 kfree(bus);
353 return 0;
354}
355
c8b6bf9b 356static int snd_hda_bus_dev_free(struct snd_device *device)
1da177e4
LT		 357{
358 struct hda_bus *bus = device->device_data;
359 return snd_hda_bus_free(bus);
360}
361
362/**
363 * snd_hda_bus_new - create a HDA bus
364 * @card: the card entry
365 * @temp: the template for hda_bus information
366 * @busp: the pointer to store the created bus instance
367 *
368 * Returns 0 if successful, or a negative error code.
369 */
756e2b01
TI		 370int __devinit snd_hda_bus_new(struct snd_card *card,
371 const struct hda_bus_template *temp,
372 struct hda_bus **busp)
1da177e4
LT		 373{
374 struct hda_bus *bus;
375 int err;
c8b6bf9b 376 static struct snd_device_ops dev_ops = {
1da177e4
LT		 377 .dev_free = snd_hda_bus_dev_free,
378 };
379
380 snd_assert(temp, return -EINVAL);
381 snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
382
383 if (busp)
384 *busp = NULL;
385
e560d8d8 386 bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1da177e4
LT		 387 if (bus == NULL) {
388 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
389 return -ENOMEM;
390 }
391
392 bus->card = card;
393 bus->private_data = temp->private_data;
394 bus->pci = temp->pci;
395 bus->modelname = temp->modelname;
396 bus->ops = temp->ops;
397
62932df8 398 mutex_init(&bus->cmd_mutex);
1da177e4
LT		 399 INIT_LIST_HEAD(&bus->codec_list);
400
0ba21762
TI		 401 err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
402 if (err < 0) {
1da177e4
LT		 403 snd_hda_bus_free(bus);
404 return err;
405 }
406 if (busp)
407 *busp = bus;
408 return 0;
409}
410
82467611
TI		 411#ifdef CONFIG_SND_HDA_GENERIC
412#define is_generic_config(codec) \
413 (codec->bus->modelname && !strcmp(codec->bus->modelname, "generic"))
414#else
415#define is_generic_config(codec) 0
416#endif
417
1da177e4
LT		 418/*
419 * find a matching codec preset
420 */
756e2b01
TI		 421static const struct hda_codec_preset __devinit *
422find_codec_preset(struct hda_codec *codec)
1da177e4
LT		 423{
424 const struct hda_codec_preset **tbl, *preset;
425
82467611 426 if (is_generic_config(codec))
d5ad630b
TI		 427 return NULL; /* use the generic parser */
428
1da177e4
LT		 429 for (tbl = hda_preset_tables; *tbl; tbl++) {
430 for (preset = *tbl; preset->id; preset++) {
431 u32 mask = preset->mask;
0ba21762 432 if (!mask)
1da177e4 433 mask = ~0;
9c7f852e 434 if (preset->id == (codec->vendor_id & mask) &&
0ba21762 435 (!preset->rev ||
9c7f852e 436 preset->rev == codec->revision_id))
1da177e4
LT		 437 return preset;
438 }
439 }
440 return NULL;
441}
442
443/*
444 * snd_hda_get_codec_name - store the codec name
445 */
446void snd_hda_get_codec_name(struct hda_codec *codec,
447 char *name, int namelen)
448{
449 const struct hda_vendor_id *c;
450 const char *vendor = NULL;
451 u16 vendor_id = codec->vendor_id >> 16;
452 char tmp[16];
453
454 for (c = hda_vendor_ids; c->id; c++) {
455 if (c->id == vendor_id) {
456 vendor = c->name;
457 break;
458 }
459 }
0ba21762 460 if (!vendor) {
1da177e4
LT		 461 sprintf(tmp, "Generic %04x", vendor_id);
462 vendor = tmp;
463 }
464 if (codec->preset && codec->preset->name)
465 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
466 else
0ba21762
TI		 467 snprintf(name, namelen, "%s ID %x", vendor,
468 codec->vendor_id & 0xffff);
1da177e4
LT		 469}
470
471/*
673b683a 472 * look for an AFG and MFG nodes
1da177e4 473 */
756e2b01 474static void __devinit setup_fg_nodes(struct hda_codec *codec)
1da177e4
LT		 475{
476 int i, total_nodes;
477 hda_nid_t nid;
478
479 total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
480 for (i = 0; i < total_nodes; i++, nid++) {
0ba21762
TI		 481 unsigned int func;
482 func = snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE);
483 switch (func & 0xff) {
673b683a
SK		 484 case AC_GRP_AUDIO_FUNCTION:
485 codec->afg = nid;
486 break;
487 case AC_GRP_MODEM_FUNCTION:
488 codec->mfg = nid;
489 break;
490 default:
491 break;
492 }
1da177e4 493 }
1da177e4
LT		 494}
495
54d17403
TI		 496/*
497 * read widget caps for each widget and store in cache
498 */
499static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
500{
501 int i;
502 hda_nid_t nid;
503
504 codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
505 &codec->start_nid);
506 codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
0ba21762 507 if (!codec->wcaps)
54d17403
TI		 508 return -ENOMEM;
509 nid = codec->start_nid;
510 for (i = 0; i < codec->num_nodes; i++, nid++)
511 codec->wcaps[i] = snd_hda_param_read(codec, nid,
512 AC_PAR_AUDIO_WIDGET_CAP);
513 return 0;
514}
515
516
01751f54
TI		 517static void init_hda_cache(struct hda_cache_rec *cache,
518 unsigned int record_size);
1fcaee6e 519static void free_hda_cache(struct hda_cache_rec *cache);
01751f54 520
1da177e4
LT		 521/*
522 * codec destructor
523 */
524static void snd_hda_codec_free(struct hda_codec *codec)
525{
0ba21762 526 if (!codec)
1da177e4 527 return;
cb53c626
TI		 528#ifdef CONFIG_SND_HDA_POWER_SAVE
529 cancel_delayed_work(&codec->power_work);
2525fdc4 530 flush_scheduled_work();
cb53c626 531#endif
1da177e4
LT		 532 list_del(&codec->list);
533 codec->bus->caddr_tbl[codec->addr] = NULL;
534 if (codec->patch_ops.free)
535 codec->patch_ops.free(codec);
01751f54 536 free_hda_cache(&codec->amp_cache);
b3ac5636 537 free_hda_cache(&codec->cmd_cache);
54d17403 538 kfree(codec->wcaps);
1da177e4
LT		 539 kfree(codec);
540}
541
1da177e4
LT		 542/**
543 * snd_hda_codec_new - create a HDA codec
544 * @bus: the bus to assign
545 * @codec_addr: the codec address
546 * @codecp: the pointer to store the generated codec
547 *
548 * Returns 0 if successful, or a negative error code.
549 */
756e2b01
TI		 550int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
551 struct hda_codec **codecp)
1da177e4
LT		 552{
553 struct hda_codec *codec;
554 char component[13];
555 int err;
556
557 snd_assert(bus, return -EINVAL);
558 snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
559
560 if (bus->caddr_tbl[codec_addr]) {
0ba21762
TI		 561 snd_printk(KERN_ERR "hda_codec: "
562 "address 0x%x is already occupied\n", codec_addr);
1da177e4
LT		 563 return -EBUSY;
564 }
565
e560d8d8 566 codec = kzalloc(sizeof(*codec), GFP_KERNEL);
1da177e4
LT		 567 if (codec == NULL) {
568 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
569 return -ENOMEM;
570 }
571
572 codec->bus = bus;
573 codec->addr = codec_addr;
62932df8 574 mutex_init(&codec->spdif_mutex);
01751f54 575 init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
b3ac5636 576 init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
1da177e4 577
cb53c626
TI		 578#ifdef CONFIG_SND_HDA_POWER_SAVE
579 INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
580 /* snd_hda_codec_new() marks the codec as power-up, and leave it as is.
581 * the caller has to power down appropriatley after initialization
582 * phase.
583 */
584 hda_keep_power_on(codec);
585#endif
586
1da177e4
LT		 587 list_add_tail(&codec->list, &bus->codec_list);
588 bus->caddr_tbl[codec_addr] = codec;
589
0ba21762
TI		 590 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
591 AC_PAR_VENDOR_ID);
111d3af5
TI		 592 if (codec->vendor_id == -1)
593 /* read again, hopefully the access method was corrected
594 * in the last read...
595 */
596 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
597 AC_PAR_VENDOR_ID);
0ba21762
TI		 598 codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
599 AC_PAR_SUBSYSTEM_ID);
600 codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
601 AC_PAR_REV_ID);
1da177e4 602
673b683a 603 setup_fg_nodes(codec);
0ba21762 604 if (!codec->afg && !codec->mfg) {
673b683a 605 snd_printdd("hda_codec: no AFG or MFG node found\n");
1da177e4
LT		 606 snd_hda_codec_free(codec);
607 return -ENODEV;
608 }
609
54d17403
TI		 610 if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
611 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
612 snd_hda_codec_free(codec);
613 return -ENOMEM;
614 }
615
0ba21762 616 if (!codec->subsystem_id) {
86284e45 617 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
0ba21762
TI		 618 codec->subsystem_id =
619 snd_hda_codec_read(codec, nid, 0,
620 AC_VERB_GET_SUBSYSTEM_ID, 0);
86284e45
TI		 621 }
622
d5ad630b 623 codec->preset = find_codec_preset(codec);
43ea1d47
TI		 624 /* audio codec should override the mixer name */
625 if (codec->afg || !*bus->card->mixername)
1da177e4
LT		 626 snd_hda_get_codec_name(codec, bus->card->mixername,
627 sizeof(bus->card->mixername));
628
82467611
TI		 629#ifdef CONFIG_SND_HDA_GENERIC
630 if (is_generic_config(codec)) {
1da177e4 631 err = snd_hda_parse_generic_codec(codec);
82467611
TI		 632 goto patched;
633 }
634#endif
635 if (codec->preset && codec->preset->patch) {
636 err = codec->preset->patch(codec);
637 goto patched;
638 }
639
640 /* call the default parser */
641#ifdef CONFIG_SND_HDA_GENERIC
642 err = snd_hda_parse_generic_codec(codec);
643#else
644 printk(KERN_ERR "hda-codec: No codec parser is available\n");
645 err = -ENODEV;
646#endif
647
648 patched:
1da177e4
LT		 649 if (err < 0) {
650 snd_hda_codec_free(codec);
651 return err;
652 }
653
9f146bb6
TI		 654 if (codec->patch_ops.unsol_event)
655 init_unsol_queue(bus);
656
1da177e4 657 snd_hda_codec_proc_new(codec);
2807314d
TI		 658#ifdef CONFIG_SND_HDA_HWDEP
659 snd_hda_create_hwdep(codec);
660#endif
1da177e4
LT		 661
662 sprintf(component, "HDA:%08x", codec->vendor_id);
663 snd_component_add(codec->bus->card, component);
664
665 if (codecp)
666 *codecp = codec;
667 return 0;
668}
669
670/**
671 * snd_hda_codec_setup_stream - set up the codec for streaming
672 * @codec: the CODEC to set up
673 * @nid: the NID to set up
674 * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
675 * @channel_id: channel id to pass, zero based.
676 * @format: stream format.
677 */
0ba21762
TI		 678void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
679 u32 stream_tag,
1da177e4
LT		 680 int channel_id, int format)
681{
0ba21762 682 if (!nid)
d21b37ea
TI		 683 return;
684
0ba21762
TI		 685 snd_printdd("hda_codec_setup_stream: "
686 "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
1da177e4
LT		 687 nid, stream_tag, channel_id, format);
688 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
689 (stream_tag << 4) | channel_id);
690 msleep(1);
691 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
692}
693
1da177e4
LT		 694/*
695 * amp access functions
696 */
697
4a19faee
TI		 698/* FIXME: more better hash key? */
699#define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
1da177e4 700#define INFO_AMP_CAPS (1<<0)
4a19faee 701#define INFO_AMP_VOL(ch) (1 << (1 + (ch)))
1da177e4
LT		 702
703/* initialize the hash table */
01751f54
TI		 704static void __devinit init_hda_cache(struct hda_cache_rec *cache,
705 unsigned int record_size)
706{
707 memset(cache, 0, sizeof(*cache));
708 memset(cache->hash, 0xff, sizeof(cache->hash));
709 cache->record_size = record_size;
710}
711
1fcaee6e 712static void free_hda_cache(struct hda_cache_rec *cache)
1da177e4 713{
01751f54 714 kfree(cache->buffer);
1da177e4
LT		 715}
716
717/* query the hash. allocate an entry if not found. */
01751f54
TI		 718static struct hda_cache_head *get_alloc_hash(struct hda_cache_rec *cache,
719 u32 key)
1da177e4 720{
01751f54
TI		 721 u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
722 u16 cur = cache->hash[idx];
723 struct hda_cache_head *info;
1da177e4
LT		 724
725 while (cur != 0xffff) {
01751f54
TI		 726 info = (struct hda_cache_head *)(cache->buffer +
727 cur * cache->record_size);
1da177e4
LT		 728 if (info->key == key)
729 return info;
730 cur = info->next;
731 }
732
733 /* add a new hash entry */
01751f54 734 if (cache->num_entries >= cache->size) {
d031166f 735 /* reallocate the array */
01751f54
TI		 736 unsigned int new_size = cache->size + 64;
737 void *new_buffer;
738 new_buffer = kcalloc(new_size, cache->record_size, GFP_KERNEL);
739 if (!new_buffer) {
0ba21762
TI		 740 snd_printk(KERN_ERR "hda_codec: "
741 "can't malloc amp_info\n");
d031166f
TI		 742 return NULL;
743 }
01751f54
TI		 744 if (cache->buffer) {
745 memcpy(new_buffer, cache->buffer,
746 cache->size * cache->record_size);
747 kfree(cache->buffer);
d031166f 748 }
01751f54
TI		 749 cache->size = new_size;
750 cache->buffer = new_buffer;
1da177e4 751 }
01751f54
TI		 752 cur = cache->num_entries++;
753 info = (struct hda_cache_head *)(cache->buffer +
754 cur * cache->record_size);
1da177e4 755 info->key = key;
01751f54
TI		 756 info->val = 0;
757 info->next = cache->hash[idx];
758 cache->hash[idx] = cur;
1da177e4
LT		 759
760 return info;
761}
762
01751f54
TI		 763/* query and allocate an amp hash entry */
764static inline struct hda_amp_info *
765get_alloc_amp_hash(struct hda_codec *codec, u32 key)
766{
767 return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
768}
769
1da177e4
LT		 770/*
771 * query AMP capabilities for the given widget and direction
772 */
773static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
774{
0ba21762 775 struct hda_amp_info *info;
1da177e4 776
0ba21762
TI		 777 info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
778 if (!info)
1da177e4 779 return 0;
01751f54 780 if (!(info->head.val & INFO_AMP_CAPS)) {
0ba21762 781 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
1da177e4 782 nid = codec->afg;
0ba21762
TI		 783 info->amp_caps = snd_hda_param_read(codec, nid,
784 direction == HDA_OUTPUT ?
785 AC_PAR_AMP_OUT_CAP :
786 AC_PAR_AMP_IN_CAP);
b75e53f0 787 if (info->amp_caps)
01751f54 788 info->head.val |= INFO_AMP_CAPS;
1da177e4
LT		 789 }
790 return info->amp_caps;
791}
792
897cc188
TI		 793int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
794 unsigned int caps)
795{
796 struct hda_amp_info *info;
797
798 info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0));
799 if (!info)
800 return -EINVAL;
801 info->amp_caps = caps;
01751f54 802 info->head.val |= INFO_AMP_CAPS;
897cc188
TI		 803 return 0;
804}
805
1da177e4
LT		 806/*
807 * read the current volume to info
4a19faee 808 * if the cache exists, read the cache value.
1da177e4 809 */
0ba21762
TI		 810static unsigned int get_vol_mute(struct hda_codec *codec,
811 struct hda_amp_info *info, hda_nid_t nid,
812 int ch, int direction, int index)
1da177e4
LT		 813{
814 u32 val, parm;
815
01751f54 816 if (info->head.val & INFO_AMP_VOL(ch))
4a19faee 817 return info->vol[ch];
1da177e4
LT		 818
819 parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
820 parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
821 parm |= index;
0ba21762
TI		 822 val = snd_hda_codec_read(codec, nid, 0,
823 AC_VERB_GET_AMP_GAIN_MUTE, parm);
1da177e4 824 info->vol[ch] = val & 0xff;
01751f54 825 info->head.val |= INFO_AMP_VOL(ch);
4a19faee 826 return info->vol[ch];
1da177e4
LT		 827}
828
829/*
4a19faee 830 * write the current volume in info to the h/w and update the cache
1da177e4 831 */
4a19faee 832static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
0ba21762
TI		 833 hda_nid_t nid, int ch, int direction, int index,
834 int val)
1da177e4
LT		 835{
836 u32 parm;
837
838 parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
839 parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
840 parm |= index << AC_AMP_SET_INDEX_SHIFT;
841 parm |= val;
842 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
4a19faee 843 info->vol[ch] = val;
1da177e4
LT		 844}
845
846/*
4a19faee 847 * read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
1da177e4 848 */
834be88d
TI		 849int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
850 int direction, int index)
1da177e4 851{
0ba21762
TI		 852 struct hda_amp_info *info;
853 info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
854 if (!info)
1da177e4 855 return 0;
4a19faee 856 return get_vol_mute(codec, info, nid, ch, direction, index);
1da177e4
LT		 857}
858
4a19faee
TI		 859/*
860 * update the AMP value, mask = bit mask to set, val = the value
861 */
834be88d
TI		 862int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
863 int direction, int idx, int mask, int val)
1da177e4 864{
0ba21762 865 struct hda_amp_info *info;
4a19faee 866
0ba21762
TI		 867 info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
868 if (!info)
1da177e4 869 return 0;
4a19faee
TI		 870 val &= mask;
871 val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
82beb8fd 872 if (info->vol[ch] == val)
1da177e4 873 return 0;
4a19faee 874 put_vol_mute(codec, info, nid, ch, direction, idx, val);
1da177e4
LT		 875 return 1;
876}
877
47fd830a
TI		 878/*
879 * update the AMP stereo with the same mask and value
880 */
881int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
882 int direction, int idx, int mask, int val)
883{
884 int ch, ret = 0;
885 for (ch = 0; ch < 2; ch++)
886 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
887 idx, mask, val);
888 return ret;
889}
890
cb53c626 891#ifdef SND_HDA_NEEDS_RESUME
b3ac5636
TI		 892/* resume the all amp commands from the cache */
893void snd_hda_codec_resume_amp(struct hda_codec *codec)
894{
895 struct hda_amp_info *buffer = codec->amp_cache.buffer;
896 int i;
897
898 for (i = 0; i < codec->amp_cache.size; i++, buffer++) {
899 u32 key = buffer->head.key;
900 hda_nid_t nid;
901 unsigned int idx, dir, ch;
902 if (!key)
903 continue;
904 nid = key & 0xff;
905 idx = (key >> 16) & 0xff;
906 dir = (key >> 24) & 0xff;
907 for (ch = 0; ch < 2; ch++) {
908 if (!(buffer->head.val & INFO_AMP_VOL(ch)))
909 continue;
910 put_vol_mute(codec, buffer, nid, ch, dir, idx,
911 buffer->vol[ch]);
912 }
913 }
914}
cb53c626 915#endif /* SND_HDA_NEEDS_RESUME */
1da177e4
LT		 916
917/*
918 * AMP control callbacks
919 */
920/* retrieve parameters from private_value */
921#define get_amp_nid(kc) ((kc)->private_value & 0xffff)
922#define get_amp_channels(kc) (((kc)->private_value >> 16) & 0x3)
923#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
924#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
925
926/* volume */
0ba21762
TI		 927int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
928 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 929{
930 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
931 u16 nid = get_amp_nid(kcontrol);
932 u8 chs = get_amp_channels(kcontrol);
933 int dir = get_amp_direction(kcontrol);
934 u32 caps;
935
936 caps = query_amp_caps(codec, nid, dir);
0ba21762
TI		 937 /* num steps */
938 caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
939 if (!caps) {
940 printk(KERN_WARNING "hda_codec: "
941 "num_steps = 0 for NID=0x%x\n", nid);
1da177e4
LT		 942 return -EINVAL;
943 }
944 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
945 uinfo->count = chs == 3 ? 2 : 1;
946 uinfo->value.integer.min = 0;
947 uinfo->value.integer.max = caps;
948 return 0;
949}
950
0ba21762
TI		 951int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
952 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 953{
954 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
955 hda_nid_t nid = get_amp_nid(kcontrol);
956 int chs = get_amp_channels(kcontrol);
957 int dir = get_amp_direction(kcontrol);
958 int idx = get_amp_index(kcontrol);
959 long *valp = ucontrol->value.integer.value;
960
961 if (chs & 1)
47fd830a
TI		 962 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx)
963 & HDA_AMP_VOLMASK;
1da177e4 964 if (chs & 2)
47fd830a
TI		 965 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx)
966 & HDA_AMP_VOLMASK;
1da177e4
LT		 967 return 0;
968}
969
0ba21762
TI		 970int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
971 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 972{
973 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
974 hda_nid_t nid = get_amp_nid(kcontrol);
975 int chs = get_amp_channels(kcontrol);
976 int dir = get_amp_direction(kcontrol);
977 int idx = get_amp_index(kcontrol);
1da177e4
LT		 978 long *valp = ucontrol->value.integer.value;
979 int change = 0;
980
cb53c626 981 snd_hda_power_up(codec);
b9f5a89c 982 if (chs & 1) {
4a19faee
TI		 983 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
984 0x7f, *valp);
b9f5a89c
NG		 985 valp++;
986 }
4a19faee
TI		 987 if (chs & 2)
988 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
b9f5a89c 989 0x7f, *valp);
cb53c626 990 snd_hda_power_down(codec);
1da177e4
LT		 991 return change;
992}
993
302e9c5a
JK		 994int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
995 unsigned int size, unsigned int __user *_tlv)
996{
997 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
998 hda_nid_t nid = get_amp_nid(kcontrol);
999 int dir = get_amp_direction(kcontrol);
1000 u32 caps, val1, val2;
1001
1002 if (size < 4 * sizeof(unsigned int))
1003 return -ENOMEM;
1004 caps = query_amp_caps(codec, nid, dir);
0ba21762
TI		 1005 val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1006 val2 = (val2 + 1) * 25;
302e9c5a
JK		 1007 val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1008 val1 = ((int)val1) * ((int)val2);
302e9c5a
JK		 1009 if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
1010 return -EFAULT;
1011 if (put_user(2 * sizeof(unsigned int), _tlv + 1))
1012 return -EFAULT;
1013 if (put_user(val1, _tlv + 2))
1014 return -EFAULT;
1015 if (put_user(val2, _tlv + 3))
1016 return -EFAULT;
1017 return 0;
1018}
1019
1da177e4 1020/* switch */
0ba21762
TI		 1021int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
1022 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 1023{
1024 int chs = get_amp_channels(kcontrol);
1025
1026 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1027 uinfo->count = chs == 3 ? 2 : 1;
1028 uinfo->value.integer.min = 0;
1029 uinfo->value.integer.max = 1;
1030 return 0;
1031}
1032
0ba21762
TI		 1033int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
1034 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1035{
1036 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1037 hda_nid_t nid = get_amp_nid(kcontrol);
1038 int chs = get_amp_channels(kcontrol);
1039 int dir = get_amp_direction(kcontrol);
1040 int idx = get_amp_index(kcontrol);
1041 long *valp = ucontrol->value.integer.value;
1042
1043 if (chs & 1)
0ba21762 1044 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
47fd830a 1045 HDA_AMP_MUTE) ? 0 : 1;
1da177e4 1046 if (chs & 2)
0ba21762 1047 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
47fd830a 1048 HDA_AMP_MUTE) ? 0 : 1;
1da177e4
LT		 1049 return 0;
1050}
1051
0ba21762
TI		 1052int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
1053 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1054{
1055 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1056 hda_nid_t nid = get_amp_nid(kcontrol);
1057 int chs = get_amp_channels(kcontrol);
1058 int dir = get_amp_direction(kcontrol);
1059 int idx = get_amp_index(kcontrol);
1da177e4
LT		 1060 long *valp = ucontrol->value.integer.value;
1061 int change = 0;
1062
cb53c626 1063 snd_hda_power_up(codec);
b9f5a89c 1064 if (chs & 1) {
4a19faee 1065 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
47fd830a
TI		 1066 HDA_AMP_MUTE,
1067 *valp ? 0 : HDA_AMP_MUTE);
b9f5a89c
NG		 1068 valp++;
1069 }
4a19faee
TI		 1070 if (chs & 2)
1071 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
47fd830a
TI		 1072 HDA_AMP_MUTE,
1073 *valp ? 0 : HDA_AMP_MUTE);
cb53c626
TI		 1074#ifdef CONFIG_SND_HDA_POWER_SAVE
1075 if (codec->patch_ops.check_power_status)
1076 codec->patch_ops.check_power_status(codec, nid);
1077#endif
1078 snd_hda_power_down(codec);
1da177e4
LT		 1079 return change;
1080}
1081
985be54b
TI		 1082/*
1083 * bound volume controls
1084 *
1085 * bind multiple volumes (# indices, from 0)
1086 */
1087
1088#define AMP_VAL_IDX_SHIFT 19
1089#define AMP_VAL_IDX_MASK (0x0f<<19)
1090
0ba21762
TI		 1091int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
1092 struct snd_ctl_elem_value *ucontrol)
985be54b
TI		 1093{
1094 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1095 unsigned long pval;
1096 int err;
1097
62932df8 1098 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
985be54b
TI		 1099 pval = kcontrol->private_value;
1100 kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
1101 err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
1102 kcontrol->private_value = pval;
62932df8 1103 mutex_unlock(&codec->spdif_mutex);
985be54b
TI		 1104 return err;
1105}
1106
0ba21762
TI		 1107int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
1108 struct snd_ctl_elem_value *ucontrol)
985be54b
TI		 1109{
1110 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1111 unsigned long pval;
1112 int i, indices, err = 0, change = 0;
1113
62932df8 1114 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
985be54b
TI		 1115 pval = kcontrol->private_value;
1116 indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
1117 for (i = 0; i < indices; i++) {
0ba21762
TI		 1118 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
1119 (i << AMP_VAL_IDX_SHIFT);
985be54b
TI		 1120 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
1121 if (err < 0)
1122 break;
1123 change |= err;
1124 }
1125 kcontrol->private_value = pval;
62932df8 1126 mutex_unlock(&codec->spdif_mutex);
985be54b
TI		 1127 return err < 0 ? err : change;
1128}
1129
532d5381
TI		 1130/*
1131 * generic bound volume/swtich controls
1132 */
1133int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
1134 struct snd_ctl_elem_info *uinfo)
1135{
1136 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1137 struct hda_bind_ctls *c;
1138 int err;
1139
1140 c = (struct hda_bind_ctls *)kcontrol->private_value;
1141 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1142 kcontrol->private_value = *c->values;
1143 err = c->ops->info(kcontrol, uinfo);
1144 kcontrol->private_value = (long)c;
1145 mutex_unlock(&codec->spdif_mutex);
1146 return err;
1147}
1148
1149int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
1150 struct snd_ctl_elem_value *ucontrol)
1151{
1152 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1153 struct hda_bind_ctls *c;
1154 int err;
1155
1156 c = (struct hda_bind_ctls *)kcontrol->private_value;
1157 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1158 kcontrol->private_value = *c->values;
1159 err = c->ops->get(kcontrol, ucontrol);
1160 kcontrol->private_value = (long)c;
1161 mutex_unlock(&codec->spdif_mutex);
1162 return err;
1163}
1164
1165int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
1166 struct snd_ctl_elem_value *ucontrol)
1167{
1168 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1169 struct hda_bind_ctls *c;
1170 unsigned long *vals;
1171 int err = 0, change = 0;
1172
1173 c = (struct hda_bind_ctls *)kcontrol->private_value;
1174 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1175 for (vals = c->values; *vals; vals++) {
1176 kcontrol->private_value = *vals;
1177 err = c->ops->put(kcontrol, ucontrol);
1178 if (err < 0)
1179 break;
1180 change |= err;
1181 }
1182 kcontrol->private_value = (long)c;
1183 mutex_unlock(&codec->spdif_mutex);
1184 return err < 0 ? err : change;
1185}
1186
1187int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1188 unsigned int size, unsigned int __user *tlv)
1189{
1190 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1191 struct hda_bind_ctls *c;
1192 int err;
1193
1194 c = (struct hda_bind_ctls *)kcontrol->private_value;
1195 mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1196 kcontrol->private_value = *c->values;
1197 err = c->ops->tlv(kcontrol, op_flag, size, tlv);
1198 kcontrol->private_value = (long)c;
1199 mutex_unlock(&codec->spdif_mutex);
1200 return err;
1201}
1202
1203struct hda_ctl_ops snd_hda_bind_vol = {
1204 .info = snd_hda_mixer_amp_volume_info,
1205 .get = snd_hda_mixer_amp_volume_get,
1206 .put = snd_hda_mixer_amp_volume_put,
1207 .tlv = snd_hda_mixer_amp_tlv
1208};
1209
1210struct hda_ctl_ops snd_hda_bind_sw = {
1211 .info = snd_hda_mixer_amp_switch_info,
1212 .get = snd_hda_mixer_amp_switch_get,
1213 .put = snd_hda_mixer_amp_switch_put,
1214 .tlv = snd_hda_mixer_amp_tlv
1215};
1216
1da177e4
LT		 1217/*
1218 * SPDIF out controls
1219 */
1220
0ba21762
TI		 1221static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
1222 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 1223{
1224 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1225 uinfo->count = 1;
1226 return 0;
1227}
1228
0ba21762
TI		 1229static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
1230 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1231{
1232 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1233 IEC958_AES0_NONAUDIO |
1234 IEC958_AES0_CON_EMPHASIS_5015 |
1235 IEC958_AES0_CON_NOT_COPYRIGHT;
1236 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
1237 IEC958_AES1_CON_ORIGINAL;
1238 return 0;
1239}
1240
0ba21762
TI		 1241static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
1242 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1243{
1244 ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1245 IEC958_AES0_NONAUDIO |
1246 IEC958_AES0_PRO_EMPHASIS_5015;
1247 return 0;
1248}
1249
0ba21762
TI		 1250static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
1251 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1252{
1253 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1254
1255 ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1256 ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1257 ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1258 ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1259
1260 return 0;
1261}
1262
1263/* convert from SPDIF status bits to HDA SPDIF bits
1264 * bit 0 (DigEn) is always set zero (to be filled later)
1265 */
1266static unsigned short convert_from_spdif_status(unsigned int sbits)
1267{
1268 unsigned short val = 0;
1269
1270 if (sbits & IEC958_AES0_PROFESSIONAL)
0ba21762 1271 val |= AC_DIG1_PROFESSIONAL;
1da177e4 1272 if (sbits & IEC958_AES0_NONAUDIO)
0ba21762 1273 val |= AC_DIG1_NONAUDIO;
1da177e4 1274 if (sbits & IEC958_AES0_PROFESSIONAL) {
0ba21762
TI		 1275 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
1276 IEC958_AES0_PRO_EMPHASIS_5015)
1277 val |= AC_DIG1_EMPHASIS;
1da177e4 1278 } else {
0ba21762
TI		 1279 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
1280 IEC958_AES0_CON_EMPHASIS_5015)
1281 val |= AC_DIG1_EMPHASIS;
1282 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1283 val |= AC_DIG1_COPYRIGHT;
1da177e4 1284 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
0ba21762 1285 val |= AC_DIG1_LEVEL;
1da177e4
LT		 1286 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1287 }
1288 return val;
1289}
1290
1291/* convert to SPDIF status bits from HDA SPDIF bits
1292 */
1293static unsigned int convert_to_spdif_status(unsigned short val)
1294{
1295 unsigned int sbits = 0;
1296
0ba21762 1297 if (val & AC_DIG1_NONAUDIO)
1da177e4 1298 sbits |= IEC958_AES0_NONAUDIO;
0ba21762 1299 if (val & AC_DIG1_PROFESSIONAL)
1da177e4
LT		 1300 sbits |= IEC958_AES0_PROFESSIONAL;
1301 if (sbits & IEC958_AES0_PROFESSIONAL) {
0ba21762 1302 if (sbits & AC_DIG1_EMPHASIS)
1da177e4
LT		 1303 sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1304 } else {
0ba21762 1305 if (val & AC_DIG1_EMPHASIS)
1da177e4 1306 sbits |= IEC958_AES0_CON_EMPHASIS_5015;
0ba21762 1307 if (!(val & AC_DIG1_COPYRIGHT))
1da177e4 1308 sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
0ba21762 1309 if (val & AC_DIG1_LEVEL)
1da177e4
LT		 1310 sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1311 sbits |= val & (0x7f << 8);
1312 }
1313 return sbits;
1314}
1315
0ba21762
TI		 1316static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
1317 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1318{
1319 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1320 hda_nid_t nid = kcontrol->private_value;
1321 unsigned short val;
1322 int change;
1323
62932df8 1324 mutex_lock(&codec->spdif_mutex);
1da177e4
LT		 1325 codec->spdif_status = ucontrol->value.iec958.status[0] |
1326 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1327 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1328 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1329 val = convert_from_spdif_status(codec->spdif_status);
1330 val |= codec->spdif_ctls & 1;
1331 change = codec->spdif_ctls != val;
1332 codec->spdif_ctls = val;
1333
82beb8fd
TI		 1334 if (change) {
1335 snd_hda_codec_write_cache(codec, nid, 0,
1336 AC_VERB_SET_DIGI_CONVERT_1,
1337 val & 0xff);
1338 snd_hda_codec_write_cache(codec, nid, 0,
1339 AC_VERB_SET_DIGI_CONVERT_2,
1340 val >> 8);
1da177e4
LT		 1341 }
1342
62932df8 1343 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 1344 return change;
1345}
1346
a5ce8890 1347#define snd_hda_spdif_out_switch_info snd_ctl_boolean_mono_info
1da177e4 1348
0ba21762
TI		 1349static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
1350 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1351{
1352 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1353
0ba21762 1354 ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
1da177e4
LT		 1355 return 0;
1356}
1357
0ba21762
TI		 1358static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
1359 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1360{
1361 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1362 hda_nid_t nid = kcontrol->private_value;
1363 unsigned short val;
1364 int change;
1365
62932df8 1366 mutex_lock(&codec->spdif_mutex);
0ba21762 1367 val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
1da177e4 1368 if (ucontrol->value.integer.value[0])
0ba21762 1369 val |= AC_DIG1_ENABLE;
1da177e4 1370 change = codec->spdif_ctls != val;
82beb8fd 1371 if (change) {
1da177e4 1372 codec->spdif_ctls = val;
82beb8fd
TI		 1373 snd_hda_codec_write_cache(codec, nid, 0,
1374 AC_VERB_SET_DIGI_CONVERT_1,
1375 val & 0xff);
0ba21762
TI		 1376 /* unmute amp switch (if any) */
1377 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
47fd830a
TI		 1378 (val & AC_DIG1_ENABLE))
1379 snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
1380 HDA_AMP_MUTE, 0);
1da177e4 1381 }
62932df8 1382 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 1383 return change;
1384}
1385
c8b6bf9b 1386static struct snd_kcontrol_new dig_mixes[] = {
1da177e4
LT		 1387 {
1388 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1389 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1390 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1391 .info = snd_hda_spdif_mask_info,
1392 .get = snd_hda_spdif_cmask_get,
1393 },
1394 {
1395 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1396 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1397 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1398 .info = snd_hda_spdif_mask_info,
1399 .get = snd_hda_spdif_pmask_get,
1400 },
1401 {
1402 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1403 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1404 .info = snd_hda_spdif_mask_info,
1405 .get = snd_hda_spdif_default_get,
1406 .put = snd_hda_spdif_default_put,
1407 },
1408 {
1409 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1410 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1411 .info = snd_hda_spdif_out_switch_info,
1412 .get = snd_hda_spdif_out_switch_get,
1413 .put = snd_hda_spdif_out_switch_put,
1414 },
1415 { } /* end */
1416};
1417
1418/**
1419 * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1420 * @codec: the HDA codec
1421 * @nid: audio out widget NID
1422 *
1423 * Creates controls related with the SPDIF output.
1424 * Called from each patch supporting the SPDIF out.
1425 *
1426 * Returns 0 if successful, or a negative error code.
1427 */
12f288bf 1428int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1da177e4
LT		 1429{
1430 int err;
c8b6bf9b
TI		 1431 struct snd_kcontrol *kctl;
1432 struct snd_kcontrol_new *dig_mix;
1da177e4
LT		 1433
1434 for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1435 kctl = snd_ctl_new1(dig_mix, codec);
1436 kctl->private_value = nid;
0ba21762
TI		 1437 err = snd_ctl_add(codec->bus->card, kctl);
1438 if (err < 0)
1da177e4
LT		 1439 return err;
1440 }
0ba21762
TI		 1441 codec->spdif_ctls =
1442 snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1da177e4
LT		 1443 codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1444 return 0;
1445}
1446
1447/*
1448 * SPDIF input
1449 */
1450
1451#define snd_hda_spdif_in_switch_info snd_hda_spdif_out_switch_info
1452
0ba21762
TI		 1453static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
1454 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1455{
1456 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1457
1458 ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1459 return 0;
1460}
1461
0ba21762
TI		 1462static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
1463 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1464{
1465 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1466 hda_nid_t nid = kcontrol->private_value;
1467 unsigned int val = !!ucontrol->value.integer.value[0];
1468 int change;
1469
62932df8 1470 mutex_lock(&codec->spdif_mutex);
1da177e4 1471 change = codec->spdif_in_enable != val;
82beb8fd 1472 if (change) {
1da177e4 1473 codec->spdif_in_enable = val;
82beb8fd
TI		 1474 snd_hda_codec_write_cache(codec, nid, 0,
1475 AC_VERB_SET_DIGI_CONVERT_1, val);
1da177e4 1476 }
62932df8 1477 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 1478 return change;
1479}
1480
0ba21762
TI		 1481static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
1482 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 1483{
1484 struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1485 hda_nid_t nid = kcontrol->private_value;
1486 unsigned short val;
1487 unsigned int sbits;
1488
1489 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1490 sbits = convert_to_spdif_status(val);
1491 ucontrol->value.iec958.status[0] = sbits;
1492 ucontrol->value.iec958.status[1] = sbits >> 8;
1493 ucontrol->value.iec958.status[2] = sbits >> 16;
1494 ucontrol->value.iec958.status[3] = sbits >> 24;
1495 return 0;
1496}
1497
c8b6bf9b 1498static struct snd_kcontrol_new dig_in_ctls[] = {
1da177e4
LT		 1499 {
1500 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1501 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1502 .info = snd_hda_spdif_in_switch_info,
1503 .get = snd_hda_spdif_in_switch_get,
1504 .put = snd_hda_spdif_in_switch_put,
1505 },
1506 {
1507 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1508 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1509 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1510 .info = snd_hda_spdif_mask_info,
1511 .get = snd_hda_spdif_in_status_get,
1512 },
1513 { } /* end */
1514};
1515
1516/**
1517 * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1518 * @codec: the HDA codec
1519 * @nid: audio in widget NID
1520 *
1521 * Creates controls related with the SPDIF input.
1522 * Called from each patch supporting the SPDIF in.
1523 *
1524 * Returns 0 if successful, or a negative error code.
1525 */
12f288bf 1526int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1da177e4
LT		 1527{
1528 int err;
c8b6bf9b
TI		 1529 struct snd_kcontrol *kctl;
1530 struct snd_kcontrol_new *dig_mix;
1da177e4
LT		 1531
1532 for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1533 kctl = snd_ctl_new1(dig_mix, codec);
1534 kctl->private_value = nid;
0ba21762
TI		 1535 err = snd_ctl_add(codec->bus->card, kctl);
1536 if (err < 0)
1da177e4
LT		 1537 return err;
1538 }
0ba21762
TI		 1539 codec->spdif_in_enable =
1540 snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) &
1541 AC_DIG1_ENABLE;
1da177e4
LT		 1542 return 0;
1543}
1544
cb53c626 1545#ifdef SND_HDA_NEEDS_RESUME
82beb8fd
TI		 1546/*
1547 * command cache
1548 */
1da177e4 1549
b3ac5636
TI		 1550/* build a 32bit cache key with the widget id and the command parameter */
1551#define build_cmd_cache_key(nid, verb) ((verb << 8) | nid)
1552#define get_cmd_cache_nid(key) ((key) & 0xff)
1553#define get_cmd_cache_cmd(key) (((key) >> 8) & 0xffff)
1554
1555/**
1556 * snd_hda_codec_write_cache - send a single command with caching
1557 * @codec: the HDA codec
1558 * @nid: NID to send the command
1559 * @direct: direct flag
1560 * @verb: the verb to send
1561 * @parm: the parameter for the verb
1562 *
1563 * Send a single command without waiting for response.
1564 *
1565 * Returns 0 if successful, or a negative error code.
1566 */
1567int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
1568 int direct, unsigned int verb, unsigned int parm)
1569{
1570 int err;
cb53c626 1571 snd_hda_power_up(codec);
b3ac5636
TI		 1572 mutex_lock(&codec->bus->cmd_mutex);
1573 err = codec->bus->ops.command(codec, nid, direct, verb, parm);
1574 if (!err) {
1575 struct hda_cache_head *c;
1576 u32 key = build_cmd_cache_key(nid, verb);
1577 c = get_alloc_hash(&codec->cmd_cache, key);
1578 if (c)
1579 c->val = parm;
1580 }
1581 mutex_unlock(&codec->bus->cmd_mutex);
cb53c626 1582 snd_hda_power_down(codec);
b3ac5636
TI		 1583 return err;
1584}
1585
1586/* resume the all commands from the cache */
1587void snd_hda_codec_resume_cache(struct hda_codec *codec)
1588{
1589 struct hda_cache_head *buffer = codec->cmd_cache.buffer;
1590 int i;
1591
1592 for (i = 0; i < codec->cmd_cache.size; i++, buffer++) {
1593 u32 key = buffer->key;
1594 if (!key)
1595 continue;
1596 snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0,
1597 get_cmd_cache_cmd(key), buffer->val);
1598 }
1599}
1600
1601/**
1602 * snd_hda_sequence_write_cache - sequence writes with caching
1603 * @codec: the HDA codec
1604 * @seq: VERB array to send
1605 *
1606 * Send the commands sequentially from the given array.
1607 * Thte commands are recorded on cache for power-save and resume.
1608 * The array must be terminated with NID=0.
1609 */
1610void snd_hda_sequence_write_cache(struct hda_codec *codec,
1611 const struct hda_verb *seq)
1612{
1613 for (; seq->nid; seq++)
1614 snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb,
1615 seq->param);
1616}
cb53c626 1617#endif /* SND_HDA_NEEDS_RESUME */
b3ac5636 1618
54d17403
TI		 1619/*
1620 * set power state of the codec
1621 */
1622static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1623 unsigned int power_state)
1624{
cb53c626
TI		 1625 hda_nid_t nid;
1626 int i;
54d17403
TI		 1627
1628 snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1629 power_state);
1630
cb53c626
TI		 1631 nid = codec->start_nid;
1632 for (i = 0; i < codec->num_nodes; i++, nid++) {
1194b5b7
TI		 1633 if (get_wcaps(codec, nid) & AC_WCAP_POWER) {
1634 unsigned int pincap;
1635 /*
1636 * don't power down the widget if it controls eapd
1637 * and EAPD_BTLENABLE is set.
1638 */
1639 pincap = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
1640 if (pincap & AC_PINCAP_EAPD) {
1641 int eapd = snd_hda_codec_read(codec, nid,
1642 0, AC_VERB_GET_EAPD_BTLENABLE, 0);
1643 eapd &= 0x02;
1644 if (power_state == AC_PWRST_D3 && eapd)
1645 continue;
1646 }
54d17403
TI		 1647 snd_hda_codec_write(codec, nid, 0,
1648 AC_VERB_SET_POWER_STATE,
1649 power_state);
1194b5b7 1650 }
54d17403
TI		 1651 }
1652
cb53c626
TI		 1653 if (power_state == AC_PWRST_D0) {
1654 unsigned long end_time;
1655 int state;
54d17403 1656 msleep(10);
cb53c626
TI		 1657 /* wait until the codec reachs to D0 */
1658 end_time = jiffies + msecs_to_jiffies(500);
1659 do {
1660 state = snd_hda_codec_read(codec, fg, 0,
1661 AC_VERB_GET_POWER_STATE, 0);
1662 if (state == power_state)
1663 break;
1664 msleep(1);
1665 } while (time_after_eq(end_time, jiffies));
1666 }
1667}
1668
1669#ifdef SND_HDA_NEEDS_RESUME
1670/*
1671 * call suspend and power-down; used both from PM and power-save
1672 */
1673static void hda_call_codec_suspend(struct hda_codec *codec)
1674{
1675 if (codec->patch_ops.suspend)
1676 codec->patch_ops.suspend(codec, PMSG_SUSPEND);
1677 hda_set_power_state(codec,
1678 codec->afg ? codec->afg : codec->mfg,
1679 AC_PWRST_D3);
1680#ifdef CONFIG_SND_HDA_POWER_SAVE
1681 cancel_delayed_work(&codec->power_work);
95e99fda 1682 codec->power_on = 0;
a221e287 1683 codec->power_transition = 0;
cb53c626 1684#endif
54d17403
TI		 1685}
1686
cb53c626
TI		 1687/*
1688 * kick up codec; used both from PM and power-save
1689 */
1690static void hda_call_codec_resume(struct hda_codec *codec)
1691{
1692 hda_set_power_state(codec,
1693 codec->afg ? codec->afg : codec->mfg,
1694 AC_PWRST_D0);
1695 if (codec->patch_ops.resume)
1696 codec->patch_ops.resume(codec);
1697 else {
9d99f312
TI		 1698 if (codec->patch_ops.init)
1699 codec->patch_ops.init(codec);
cb53c626
TI		 1700 snd_hda_codec_resume_amp(codec);
1701 snd_hda_codec_resume_cache(codec);
1702 }
1703}
1704#endif /* SND_HDA_NEEDS_RESUME */
1705
54d17403 1706
1da177e4
LT		 1707/**
1708 * snd_hda_build_controls - build mixer controls
1709 * @bus: the BUS
1710 *
1711 * Creates mixer controls for each codec included in the bus.
1712 *
1713 * Returns 0 if successful, otherwise a negative error code.
1714 */
756e2b01 1715int __devinit snd_hda_build_controls(struct hda_bus *bus)
1da177e4 1716{
0ba21762 1717 struct hda_codec *codec;
1da177e4 1718
0ba21762 1719 list_for_each_entry(codec, &bus->codec_list, list) {
cb53c626
TI		 1720 int err = 0;
1721 /* fake as if already powered-on */
1722 hda_keep_power_on(codec);
1723 /* then fire up */
54d17403
TI		 1724 hda_set_power_state(codec,
1725 codec->afg ? codec->afg : codec->mfg,
1726 AC_PWRST_D0);
cb53c626
TI		 1727 /* continue to initialize... */
1728 if (codec->patch_ops.init)
1729 err = codec->patch_ops.init(codec);
1730 if (!err && codec->patch_ops.build_controls)
1731 err = codec->patch_ops.build_controls(codec);
1732 snd_hda_power_down(codec);
1da177e4
LT		 1733 if (err < 0)
1734 return err;
1735 }
cb53c626 1736
1da177e4
LT		 1737 return 0;
1738}
1739
1da177e4
LT		 1740/*
1741 * stream formats
1742 */
befdf316
TI		 1743struct hda_rate_tbl {
1744 unsigned int hz;
1745 unsigned int alsa_bits;
1746 unsigned int hda_fmt;
1747};
1748
1749static struct hda_rate_tbl rate_bits[] = {
1da177e4 1750 /* rate in Hz, ALSA rate bitmask, HDA format value */
9d8f53f2
NG		 1751
1752 /* autodetected value used in snd_hda_query_supported_pcm */
1da177e4
LT		 1753 { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1754 { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1755 { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1756 { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1757 { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1758 { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1759 { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1760 { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1761 { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1762 { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1763 { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
a961f9fe
TI		 1764#define AC_PAR_PCM_RATE_BITS 11
1765 /* up to bits 10, 384kHZ isn't supported properly */
1766
1767 /* not autodetected value */
1768 { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
9d8f53f2 1769
befdf316 1770 { 0 } /* terminator */
1da177e4
LT		 1771};
1772
1773/**
1774 * snd_hda_calc_stream_format - calculate format bitset
1775 * @rate: the sample rate
1776 * @channels: the number of channels
1777 * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1778 * @maxbps: the max. bps
1779 *
1780 * Calculate the format bitset from the given rate, channels and th PCM format.
1781 *
1782 * Return zero if invalid.
1783 */
1784unsigned int snd_hda_calc_stream_format(unsigned int rate,
1785 unsigned int channels,
1786 unsigned int format,
1787 unsigned int maxbps)
1788{
1789 int i;
1790 unsigned int val = 0;
1791
befdf316
TI		 1792 for (i = 0; rate_bits[i].hz; i++)
1793 if (rate_bits[i].hz == rate) {
1794 val = rate_bits[i].hda_fmt;
1da177e4
LT		 1795 break;
1796 }
0ba21762 1797 if (!rate_bits[i].hz) {
1da177e4
LT		 1798 snd_printdd("invalid rate %d\n", rate);
1799 return 0;
1800 }
1801
1802 if (channels == 0 || channels > 8) {
1803 snd_printdd("invalid channels %d\n", channels);
1804 return 0;
1805 }
1806 val |= channels - 1;
1807
1808 switch (snd_pcm_format_width(format)) {
1809 case 8: val |= 0x00; break;
1810 case 16: val |= 0x10; break;
1811 case 20:
1812 case 24:
1813 case 32:
1814 if (maxbps >= 32)
1815 val |= 0x40;
1816 else if (maxbps >= 24)
1817 val |= 0x30;
1818 else
1819 val |= 0x20;
1820 break;
1821 default:
0ba21762
TI		 1822 snd_printdd("invalid format width %d\n",
1823 snd_pcm_format_width(format));
1da177e4
LT		 1824 return 0;
1825 }
1826
1827 return val;
1828}
1829
1830/**
1831 * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1832 * @codec: the HDA codec
1833 * @nid: NID to query
1834 * @ratesp: the pointer to store the detected rate bitflags
1835 * @formatsp: the pointer to store the detected formats
1836 * @bpsp: the pointer to store the detected format widths
1837 *
1838 * Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
1839 * or @bsps argument is ignored.
1840 *
1841 * Returns 0 if successful, otherwise a negative error code.
1842 */
1843int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1844 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1845{
1846 int i;
1847 unsigned int val, streams;
1848
1849 val = 0;
1850 if (nid != codec->afg &&
54d17403 1851 (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1da177e4
LT		 1852 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1853 if (val == -1)
1854 return -EIO;
1855 }
0ba21762 1856 if (!val)
1da177e4
LT		 1857 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1858
1859 if (ratesp) {
1860 u32 rates = 0;
a961f9fe 1861 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
1da177e4 1862 if (val & (1 << i))
befdf316 1863 rates |= rate_bits[i].alsa_bits;
1da177e4
LT		 1864 }
1865 *ratesp = rates;
1866 }
1867
1868 if (formatsp || bpsp) {
1869 u64 formats = 0;
1870 unsigned int bps;
1871 unsigned int wcaps;
1872
54d17403 1873 wcaps = get_wcaps(codec, nid);
1da177e4
LT		 1874 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1875 if (streams == -1)
1876 return -EIO;
0ba21762
TI		 1877 if (!streams) {
1878 streams = snd_hda_param_read(codec, codec->afg,
1879 AC_PAR_STREAM);
1da177e4
LT		 1880 if (streams == -1)
1881 return -EIO;
1882 }
1883
1884 bps = 0;
1885 if (streams & AC_SUPFMT_PCM) {
1886 if (val & AC_SUPPCM_BITS_8) {
1887 formats |= SNDRV_PCM_FMTBIT_U8;
1888 bps = 8;
1889 }
1890 if (val & AC_SUPPCM_BITS_16) {
1891 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1892 bps = 16;
1893 }
1894 if (wcaps & AC_WCAP_DIGITAL) {
1895 if (val & AC_SUPPCM_BITS_32)
1896 formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1897 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1898 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1899 if (val & AC_SUPPCM_BITS_24)
1900 bps = 24;
1901 else if (val & AC_SUPPCM_BITS_20)
1902 bps = 20;
0ba21762
TI		 1903 } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
1904 AC_SUPPCM_BITS_32)) {
1da177e4
LT		 1905 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1906 if (val & AC_SUPPCM_BITS_32)
1907 bps = 32;
1da177e4
LT		 1908 else if (val & AC_SUPPCM_BITS_24)
1909 bps = 24;
33ef7651
NG		 1910 else if (val & AC_SUPPCM_BITS_20)
1911 bps = 20;
1da177e4
LT		 1912 }
1913 }
0ba21762
TI		 1914 else if (streams == AC_SUPFMT_FLOAT32) {
1915 /* should be exclusive */
1da177e4
LT		 1916 formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1917 bps = 32;
0ba21762
TI		 1918 } else if (streams == AC_SUPFMT_AC3) {
1919 /* should be exclusive */
1da177e4
LT		 1920 /* temporary hack: we have still no proper support
1921 * for the direct AC3 stream...
1922 */
1923 formats |= SNDRV_PCM_FMTBIT_U8;
1924 bps = 8;
1925 }
1926 if (formatsp)
1927 *formatsp = formats;
1928 if (bpsp)
1929 *bpsp = bps;
1930 }
1931
1932 return 0;
1933}
1934
1935/**
0ba21762
TI		 1936 * snd_hda_is_supported_format - check whether the given node supports
1937 * the format val
1da177e4
LT		 1938 *
1939 * Returns 1 if supported, 0 if not.
1940 */
1941int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1942 unsigned int format)
1943{
1944 int i;
1945 unsigned int val = 0, rate, stream;
1946
1947 if (nid != codec->afg &&
54d17403 1948 (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1da177e4
LT		 1949 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1950 if (val == -1)
1951 return 0;
1952 }
0ba21762 1953 if (!val) {
1da177e4
LT		 1954 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1955 if (val == -1)
1956 return 0;
1957 }
1958
1959 rate = format & 0xff00;
a961f9fe 1960 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
befdf316 1961 if (rate_bits[i].hda_fmt == rate) {
1da177e4
LT		 1962 if (val & (1 << i))
1963 break;
1964 return 0;
1965 }
a961f9fe 1966 if (i >= AC_PAR_PCM_RATE_BITS)
1da177e4
LT		 1967 return 0;
1968
1969 stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1970 if (stream == -1)
1971 return 0;
0ba21762 1972 if (!stream && nid != codec->afg)
1da177e4 1973 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
0ba21762 1974 if (!stream || stream == -1)
1da177e4
LT		 1975 return 0;
1976
1977 if (stream & AC_SUPFMT_PCM) {
1978 switch (format & 0xf0) {
1979 case 0x00:
0ba21762 1980 if (!(val & AC_SUPPCM_BITS_8))
1da177e4
LT		 1981 return 0;
1982 break;
1983 case 0x10:
0ba21762 1984 if (!(val & AC_SUPPCM_BITS_16))
1da177e4
LT		 1985 return 0;
1986 break;
1987 case 0x20:
0ba21762 1988 if (!(val & AC_SUPPCM_BITS_20))
1da177e4
LT		 1989 return 0;
1990 break;
1991 case 0x30:
0ba21762 1992 if (!(val & AC_SUPPCM_BITS_24))
1da177e4
LT		 1993 return 0;
1994 break;
1995 case 0x40:
0ba21762 1996 if (!(val & AC_SUPPCM_BITS_32))
1da177e4
LT		 1997 return 0;
1998 break;
1999 default:
2000 return 0;
2001 }
2002 } else {
2003 /* FIXME: check for float32 and AC3? */
2004 }
2005
2006 return 1;
2007}
2008
2009/*
2010 * PCM stuff
2011 */
2012static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
2013 struct hda_codec *codec,
c8b6bf9b 2014 struct snd_pcm_substream *substream)
1da177e4
LT		 2015{
2016 return 0;
2017}
2018
2019static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
2020 struct hda_codec *codec,
2021 unsigned int stream_tag,
2022 unsigned int format,
c8b6bf9b 2023 struct snd_pcm_substream *substream)
1da177e4
LT		 2024{
2025 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
2026 return 0;
2027}
2028
2029static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
2030 struct hda_codec *codec,
c8b6bf9b 2031 struct snd_pcm_substream *substream)
1da177e4
LT		 2032{
2033 snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
2034 return 0;
2035}
2036
0ba21762
TI		 2037static int __devinit set_pcm_default_values(struct hda_codec *codec,
2038 struct hda_pcm_stream *info)
1da177e4 2039{
0ba21762
TI		 2040 /* query support PCM information from the given NID */
2041 if (info->nid && (!info->rates || !info->formats)) {
2042 snd_hda_query_supported_pcm(codec, info->nid,
2043 info->rates ? NULL : &info->rates,
2044 info->formats ? NULL : &info->formats,
2045 info->maxbps ? NULL : &info->maxbps);
1da177e4
LT		 2046 }
2047 if (info->ops.open == NULL)
2048 info->ops.open = hda_pcm_default_open_close;
2049 if (info->ops.close == NULL)
2050 info->ops.close = hda_pcm_default_open_close;
2051 if (info->ops.prepare == NULL) {
2052 snd_assert(info->nid, return -EINVAL);
2053 info->ops.prepare = hda_pcm_default_prepare;
2054 }
1da177e4
LT		 2055 if (info->ops.cleanup == NULL) {
2056 snd_assert(info->nid, return -EINVAL);
2057 info->ops.cleanup = hda_pcm_default_cleanup;
2058 }
2059 return 0;
2060}
2061
2062/**
2063 * snd_hda_build_pcms - build PCM information
2064 * @bus: the BUS
2065 *
2066 * Create PCM information for each codec included in the bus.
2067 *
2068 * The build_pcms codec patch is requested to set up codec->num_pcms and
2069 * codec->pcm_info properly. The array is referred by the top-level driver
2070 * to create its PCM instances.
2071 * The allocated codec->pcm_info should be released in codec->patch_ops.free
2072 * callback.
2073 *
2074 * At least, substreams, channels_min and channels_max must be filled for
2075 * each stream. substreams = 0 indicates that the stream doesn't exist.
2076 * When rates and/or formats are zero, the supported values are queried
2077 * from the given nid. The nid is used also by the default ops.prepare
2078 * and ops.cleanup callbacks.
2079 *
2080 * The driver needs to call ops.open in its open callback. Similarly,
2081 * ops.close is supposed to be called in the close callback.
2082 * ops.prepare should be called in the prepare or hw_params callback
2083 * with the proper parameters for set up.
2084 * ops.cleanup should be called in hw_free for clean up of streams.
2085 *
2086 * This function returns 0 if successfull, or a negative error code.
2087 */
756e2b01 2088int __devinit snd_hda_build_pcms(struct hda_bus *bus)
1da177e4 2089{
0ba21762 2090 struct hda_codec *codec;
1da177e4 2091
0ba21762 2092 list_for_each_entry(codec, &bus->codec_list, list) {
1da177e4
LT		 2093 unsigned int pcm, s;
2094 int err;
0ba21762 2095 if (!codec->patch_ops.build_pcms)
1da177e4
LT		 2096 continue;
2097 err = codec->patch_ops.build_pcms(codec);
2098 if (err < 0)
2099 return err;
2100 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
2101 for (s = 0; s < 2; s++) {
2102 struct hda_pcm_stream *info;
2103 info = &codec->pcm_info[pcm].stream[s];
0ba21762 2104 if (!info->substreams)
1da177e4
LT		 2105 continue;
2106 err = set_pcm_default_values(codec, info);
2107 if (err < 0)
2108 return err;
2109 }
2110 }
2111 }
2112 return 0;
2113}
2114
1da177e4
LT		 2115/**
2116 * snd_hda_check_board_config - compare the current codec with the config table
2117 * @codec: the HDA codec
f5fcc13c
TI		 2118 * @num_configs: number of config enums
2119 * @models: array of model name strings
1da177e4
LT		 2120 * @tbl: configuration table, terminated by null entries
2121 *
2122 * Compares the modelname or PCI subsystem id of the current codec with the
2123 * given configuration table. If a matching entry is found, returns its
2124 * config value (supposed to be 0 or positive).
2125 *
2126 * If no entries are matching, the function returns a negative value.
2127 */
12f288bf
TI		 2128int snd_hda_check_board_config(struct hda_codec *codec,
2129 int num_configs, const char **models,
2130 const struct snd_pci_quirk *tbl)
1da177e4 2131{
f5fcc13c
TI		 2132 if (codec->bus->modelname && models) {
2133 int i;
2134 for (i = 0; i < num_configs; i++) {
2135 if (models[i] &&
2136 !strcmp(codec->bus->modelname, models[i])) {
2137 snd_printd(KERN_INFO "hda_codec: model '%s' is "
2138 "selected\n", models[i]);
2139 return i;
1da177e4
LT		 2140 }
2141 }
2142 }
2143
f5fcc13c
TI		 2144 if (!codec->bus->pci || !tbl)
2145 return -1;
2146
2147 tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
2148 if (!tbl)
2149 return -1;
2150 if (tbl->value >= 0 && tbl->value < num_configs) {
2151#ifdef CONFIG_SND_DEBUG_DETECT
2152 char tmp[10];
2153 const char *model = NULL;
2154 if (models)
2155 model = models[tbl->value];
2156 if (!model) {
2157 sprintf(tmp, "#%d", tbl->value);
2158 model = tmp;
1da177e4 2159 }
f5fcc13c
TI		 2160 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
2161 "for config %x:%x (%s)\n",
2162 model, tbl->subvendor, tbl->subdevice,
2163 (tbl->name ? tbl->name : "Unknown device"));
2164#endif
2165 return tbl->value;
1da177e4
LT		 2166 }
2167 return -1;
2168}
2169
2170/**
2171 * snd_hda_add_new_ctls - create controls from the array
2172 * @codec: the HDA codec
c8b6bf9b 2173 * @knew: the array of struct snd_kcontrol_new
1da177e4
LT		 2174 *
2175 * This helper function creates and add new controls in the given array.
2176 * The array must be terminated with an empty entry as terminator.
2177 *
2178 * Returns 0 if successful, or a negative error code.
2179 */
12f288bf 2180int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
1da177e4 2181{
cb53c626 2182 int err;
1da177e4
LT		 2183
2184 for (; knew->name; knew++) {
54d17403
TI		 2185 struct snd_kcontrol *kctl;
2186 kctl = snd_ctl_new1(knew, codec);
0ba21762 2187 if (!kctl)
54d17403
TI		 2188 return -ENOMEM;
2189 err = snd_ctl_add(codec->bus->card, kctl);
2190 if (err < 0) {
0ba21762 2191 if (!codec->addr)
54d17403
TI		 2192 return err;
2193 kctl = snd_ctl_new1(knew, codec);
0ba21762 2194 if (!kctl)
54d17403
TI		 2195 return -ENOMEM;
2196 kctl->id.device = codec->addr;
0ba21762
TI		 2197 err = snd_ctl_add(codec->bus->card, kctl);
2198 if (err < 0)
54d17403
TI		 2199 return err;
2200 }
1da177e4
LT		 2201 }
2202 return 0;
2203}
2204
cb53c626
TI		 2205#ifdef CONFIG_SND_HDA_POWER_SAVE
2206static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2207 unsigned int power_state);
2208
2209static void hda_power_work(struct work_struct *work)
2210{
2211 struct hda_codec *codec =
2212 container_of(work, struct hda_codec, power_work.work);
2213
2e492462
ML		 2214 if (!codec->power_on || codec->power_count) {
2215 codec->power_transition = 0;
cb53c626 2216 return;
2e492462 2217 }
cb53c626
TI		 2218
2219 hda_call_codec_suspend(codec);
cb53c626
TI		 2220 if (codec->bus->ops.pm_notify)
2221 codec->bus->ops.pm_notify(codec);
2222}
2223
2224static void hda_keep_power_on(struct hda_codec *codec)
2225{
2226 codec->power_count++;
2227 codec->power_on = 1;
2228}
2229
2230void snd_hda_power_up(struct hda_codec *codec)
2231{
2232 codec->power_count++;
a221e287 2233 if (codec->power_on || codec->power_transition)
cb53c626
TI		 2234 return;
2235
2236 codec->power_on = 1;
2237 if (codec->bus->ops.pm_notify)
2238 codec->bus->ops.pm_notify(codec);
2239 hda_call_codec_resume(codec);
2240 cancel_delayed_work(&codec->power_work);
a221e287 2241 codec->power_transition = 0;
cb53c626
TI		 2242}
2243
2244void snd_hda_power_down(struct hda_codec *codec)
2245{
2246 --codec->power_count;
a221e287 2247 if (!codec->power_on || codec->power_count || codec->power_transition)
cb53c626 2248 return;
a221e287
TI		 2249 if (power_save) {
2250 codec->power_transition = 1; /* avoid reentrance */
cb53c626
TI		 2251 schedule_delayed_work(&codec->power_work,
2252 msecs_to_jiffies(power_save * 1000));
a221e287 2253 }
cb53c626
TI		 2254}
2255
2256int snd_hda_check_amp_list_power(struct hda_codec *codec,
2257 struct hda_loopback_check *check,
2258 hda_nid_t nid)
2259{
2260 struct hda_amp_list *p;
2261 int ch, v;
2262
2263 if (!check->amplist)
2264 return 0;
2265 for (p = check->amplist; p->nid; p++) {
2266 if (p->nid == nid)
2267 break;
2268 }
2269 if (!p->nid)
2270 return 0; /* nothing changed */
2271
2272 for (p = check->amplist; p->nid; p++) {
2273 for (ch = 0; ch < 2; ch++) {
2274 v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
2275 p->idx);
2276 if (!(v & HDA_AMP_MUTE) && v > 0) {
2277 if (!check->power_on) {
2278 check->power_on = 1;
2279 snd_hda_power_up(codec);
2280 }
2281 return 1;
2282 }
2283 }
2284 }
2285 if (check->power_on) {
2286 check->power_on = 0;
2287 snd_hda_power_down(codec);
2288 }
2289 return 0;
2290}
2291#endif
1da177e4 2292
c8b6bf9b 2293/*
d2a6d7dc
TI		 2294 * Channel mode helper
2295 */
0ba21762
TI		 2296int snd_hda_ch_mode_info(struct hda_codec *codec,
2297 struct snd_ctl_elem_info *uinfo,
2298 const struct hda_channel_mode *chmode,
2299 int num_chmodes)
d2a6d7dc
TI		 2300{
2301 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2302 uinfo->count = 1;
2303 uinfo->value.enumerated.items = num_chmodes;
2304 if (uinfo->value.enumerated.item >= num_chmodes)
2305 uinfo->value.enumerated.item = num_chmodes - 1;
2306 sprintf(uinfo->value.enumerated.name, "%dch",
2307 chmode[uinfo->value.enumerated.item].channels);
2308 return 0;
2309}
2310
0ba21762
TI		 2311int snd_hda_ch_mode_get(struct hda_codec *codec,
2312 struct snd_ctl_elem_value *ucontrol,
2313 const struct hda_channel_mode *chmode,
2314 int num_chmodes,
d2a6d7dc
TI		 2315 int max_channels)
2316{
2317 int i;
2318
2319 for (i = 0; i < num_chmodes; i++) {
2320 if (max_channels == chmode[i].channels) {
2321 ucontrol->value.enumerated.item[0] = i;
2322 break;
2323 }
2324 }
2325 return 0;
2326}
2327
0ba21762
TI		 2328int snd_hda_ch_mode_put(struct hda_codec *codec,
2329 struct snd_ctl_elem_value *ucontrol,
2330 const struct hda_channel_mode *chmode,
2331 int num_chmodes,
d2a6d7dc
TI		 2332 int *max_channelsp)
2333{
2334 unsigned int mode;
2335
2336 mode = ucontrol->value.enumerated.item[0];
2337 snd_assert(mode < num_chmodes, return -EINVAL);
82beb8fd 2338 if (*max_channelsp == chmode[mode].channels)
d2a6d7dc
TI		 2339 return 0;
2340 /* change the current channel setting */
2341 *max_channelsp = chmode[mode].channels;
2342 if (chmode[mode].sequence)
82beb8fd 2343 snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
d2a6d7dc
TI		 2344 return 1;
2345}
2346
1da177e4
LT		 2347/*
2348 * input MUX helper
2349 */
0ba21762
TI		 2350int snd_hda_input_mux_info(const struct hda_input_mux *imux,
2351 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 2352{
2353 unsigned int index;
2354
2355 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2356 uinfo->count = 1;
2357 uinfo->value.enumerated.items = imux->num_items;
5513b0c5
TI		 2358 if (!imux->num_items)
2359 return 0;
1da177e4
LT		 2360 index = uinfo->value.enumerated.item;
2361 if (index >= imux->num_items)
2362 index = imux->num_items - 1;
2363 strcpy(uinfo->value.enumerated.name, imux->items[index].label);
2364 return 0;
2365}
2366
0ba21762
TI		 2367int snd_hda_input_mux_put(struct hda_codec *codec,
2368 const struct hda_input_mux *imux,
2369 struct snd_ctl_elem_value *ucontrol,
2370 hda_nid_t nid,
1da177e4
LT		 2371 unsigned int *cur_val)
2372{
2373 unsigned int idx;
2374
5513b0c5
TI		 2375 if (!imux->num_items)
2376 return 0;
1da177e4
LT		 2377 idx = ucontrol->value.enumerated.item[0];
2378 if (idx >= imux->num_items)
2379 idx = imux->num_items - 1;
82beb8fd 2380 if (*cur_val == idx)
1da177e4 2381 return 0;
82beb8fd
TI		 2382 snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
2383 imux->items[idx].index);
1da177e4
LT		 2384 *cur_val = idx;
2385 return 1;
2386}
2387
2388
2389/*
2390 * Multi-channel / digital-out PCM helper functions
2391 */
2392
6b97eb45
TI		 2393/* setup SPDIF output stream */
2394static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
2395 unsigned int stream_tag, unsigned int format)
2396{
2397 /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2398 if (codec->spdif_ctls & AC_DIG1_ENABLE)
2399 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
2400 codec->spdif_ctls & ~AC_DIG1_ENABLE & 0xff);
2401 snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
2402 /* turn on again (if needed) */
2403 if (codec->spdif_ctls & AC_DIG1_ENABLE)
2404 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
2405 codec->spdif_ctls & 0xff);
2406}
2407
1da177e4
LT		 2408/*
2409 * open the digital out in the exclusive mode
2410 */
0ba21762
TI		 2411int snd_hda_multi_out_dig_open(struct hda_codec *codec,
2412 struct hda_multi_out *mout)
1da177e4 2413{
62932df8 2414 mutex_lock(&codec->spdif_mutex);
5930ca41
TI		 2415 if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
2416 /* already opened as analog dup; reset it once */
2417 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1da177e4 2418 mout->dig_out_used = HDA_DIG_EXCLUSIVE;
62932df8 2419 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 2420 return 0;
2421}
2422
6b97eb45
TI		 2423int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
2424 struct hda_multi_out *mout,
2425 unsigned int stream_tag,
2426 unsigned int format,
2427 struct snd_pcm_substream *substream)
2428{
2429 mutex_lock(&codec->spdif_mutex);
2430 setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
2431 mutex_unlock(&codec->spdif_mutex);
2432 return 0;
2433}
2434
1da177e4
LT		 2435/*
2436 * release the digital out
2437 */
0ba21762
TI		 2438int snd_hda_multi_out_dig_close(struct hda_codec *codec,
2439 struct hda_multi_out *mout)
1da177e4 2440{
62932df8 2441 mutex_lock(&codec->spdif_mutex);
1da177e4 2442 mout->dig_out_used = 0;
62932df8 2443 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 2444 return 0;
2445}
2446
2447/*
2448 * set up more restrictions for analog out
2449 */
0ba21762
TI		 2450int snd_hda_multi_out_analog_open(struct hda_codec *codec,
2451 struct hda_multi_out *mout,
c8b6bf9b 2452 struct snd_pcm_substream *substream)
1da177e4
LT		 2453{
2454 substream->runtime->hw.channels_max = mout->max_channels;
2455 return snd_pcm_hw_constraint_step(substream->runtime, 0,
2456 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2457}
2458
2459/*
2460 * set up the i/o for analog out
2461 * when the digital out is available, copy the front out to digital out, too.
2462 */
0ba21762
TI		 2463int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
2464 struct hda_multi_out *mout,
1da177e4
LT		 2465 unsigned int stream_tag,
2466 unsigned int format,
c8b6bf9b 2467 struct snd_pcm_substream *substream)
1da177e4
LT		 2468{
2469 hda_nid_t *nids = mout->dac_nids;
2470 int chs = substream->runtime->channels;
2471 int i;
2472
62932df8 2473 mutex_lock(&codec->spdif_mutex);
1da177e4
LT		 2474 if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
2475 if (chs == 2 &&
0ba21762
TI		 2476 snd_hda_is_supported_format(codec, mout->dig_out_nid,
2477 format) &&
2478 !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1da177e4 2479 mout->dig_out_used = HDA_DIG_ANALOG_DUP;
6b97eb45
TI		 2480 setup_dig_out_stream(codec, mout->dig_out_nid,
2481 stream_tag, format);
1da177e4
LT		 2482 } else {
2483 mout->dig_out_used = 0;
0ba21762
TI		 2484 snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
2485 0, 0, 0);
1da177e4
LT		 2486 }
2487 }
62932df8 2488 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 2489
2490 /* front */
0ba21762
TI		 2491 snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
2492 0, format);
35aec4e2 2493 if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
1da177e4 2494 /* headphone out will just decode front left/right (stereo) */
0ba21762
TI		 2495 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
2496 0, format);
82bc955f
TI		 2497 /* extra outputs copied from front */
2498 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
2499 if (mout->extra_out_nid[i])
2500 snd_hda_codec_setup_stream(codec,
2501 mout->extra_out_nid[i],
2502 stream_tag, 0, format);
2503
1da177e4
LT		 2504 /* surrounds */
2505 for (i = 1; i < mout->num_dacs; i++) {
4b3acaf5 2506 if (chs >= (i + 1) * 2) /* independent out */
0ba21762
TI		 2507 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
2508 i * 2, format);
4b3acaf5 2509 else /* copy front */
0ba21762
TI		 2510 snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
2511 0, format);
1da177e4
LT		 2512 }
2513 return 0;
2514}
2515
2516/*
2517 * clean up the setting for analog out
2518 */
0ba21762
TI		 2519int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
2520 struct hda_multi_out *mout)
1da177e4
LT		 2521{
2522 hda_nid_t *nids = mout->dac_nids;
2523 int i;
2524
2525 for (i = 0; i < mout->num_dacs; i++)
2526 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
2527 if (mout->hp_nid)
2528 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
82bc955f
TI		 2529 for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
2530 if (mout->extra_out_nid[i])
2531 snd_hda_codec_setup_stream(codec,
2532 mout->extra_out_nid[i],
2533 0, 0, 0);
62932df8 2534 mutex_lock(&codec->spdif_mutex);
1da177e4
LT		 2535 if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
2536 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
2537 mout->dig_out_used = 0;
2538 }
62932df8 2539 mutex_unlock(&codec->spdif_mutex);
1da177e4
LT		 2540 return 0;
2541}
2542
e9edcee0
TI		 2543/*
2544 * Helper for automatic ping configuration
2545 */
df694daa 2546
12f288bf 2547static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
df694daa
KY		 2548{
2549 for (; *list; list++)
2550 if (*list == nid)
2551 return 1;
2552 return 0;
2553}
2554
81937d3b
SL		 2555
2556/*
2557 * Sort an associated group of pins according to their sequence numbers.
2558 */
2559static void sort_pins_by_sequence(hda_nid_t * pins, short * sequences,
2560 int num_pins)
2561{
2562 int i, j;
2563 short seq;
2564 hda_nid_t nid;
2565
2566 for (i = 0; i < num_pins; i++) {
2567 for (j = i + 1; j < num_pins; j++) {
2568 if (sequences[i] > sequences[j]) {
2569 seq = sequences[i];
2570 sequences[i] = sequences[j];
2571 sequences[j] = seq;
2572 nid = pins[i];
2573 pins[i] = pins[j];
2574 pins[j] = nid;
2575 }
2576 }
2577 }
2578}
2579
2580
82bc955f
TI		 2581/*
2582 * Parse all pin widgets and store the useful pin nids to cfg
2583 *
2584 * The number of line-outs or any primary output is stored in line_outs,
2585 * and the corresponding output pins are assigned to line_out_pins[],
2586 * in the order of front, rear, CLFE, side, ...
2587 *
2588 * If more extra outputs (speaker and headphone) are found, the pins are
eb06ed8f 2589 * assisnged to hp_pins[] and speaker_pins[], respectively. If no line-out jack
82bc955f
TI		 2590 * is detected, one of speaker of HP pins is assigned as the primary
2591 * output, i.e. to line_out_pins[0]. So, line_outs is always positive
2592 * if any analog output exists.
2593 *
2594 * The analog input pins are assigned to input_pins array.
2595 * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2596 * respectively.
2597 */
12f288bf
TI		 2598int snd_hda_parse_pin_def_config(struct hda_codec *codec,
2599 struct auto_pin_cfg *cfg,
2600 hda_nid_t *ignore_nids)
e9edcee0
TI		 2601{
2602 hda_nid_t nid, nid_start;
81937d3b
SL		 2603 int nodes;
2604 short seq, assoc_line_out, assoc_speaker;
2605 short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
2606 short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
e9edcee0
TI		 2607
2608 memset(cfg, 0, sizeof(*cfg));
2609
81937d3b
SL		 2610 memset(sequences_line_out, 0, sizeof(sequences_line_out));
2611 memset(sequences_speaker, 0, sizeof(sequences_speaker));
2612 assoc_line_out = assoc_speaker = 0;
e9edcee0
TI		 2613
2614 nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2615 for (nid = nid_start; nid < nodes + nid_start; nid++) {
54d17403 2616 unsigned int wid_caps = get_wcaps(codec, nid);
0ba21762
TI		 2617 unsigned int wid_type =
2618 (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
e9edcee0
TI		 2619 unsigned int def_conf;
2620 short assoc, loc;
2621
2622 /* read all default configuration for pin complex */
2623 if (wid_type != AC_WID_PIN)
2624 continue;
df694daa
KY		 2625 /* ignore the given nids (e.g. pc-beep returns error) */
2626 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2627 continue;
2628
0ba21762
TI		 2629 def_conf = snd_hda_codec_read(codec, nid, 0,
2630 AC_VERB_GET_CONFIG_DEFAULT, 0);
e9edcee0
TI		 2631 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2632 continue;
2633 loc = get_defcfg_location(def_conf);
2634 switch (get_defcfg_device(def_conf)) {
2635 case AC_JACK_LINE_OUT:
e9edcee0
TI		 2636 seq = get_defcfg_sequence(def_conf);
2637 assoc = get_defcfg_association(def_conf);
0ba21762 2638 if (!assoc)
e9edcee0 2639 continue;
0ba21762 2640 if (!assoc_line_out)
e9edcee0
TI		 2641 assoc_line_out = assoc;
2642 else if (assoc_line_out != assoc)
2643 continue;
2644 if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2645 continue;
2646 cfg->line_out_pins[cfg->line_outs] = nid;
81937d3b 2647 sequences_line_out[cfg->line_outs] = seq;
e9edcee0
TI		 2648 cfg->line_outs++;
2649 break;
8d88bc3d 2650 case AC_JACK_SPEAKER:
81937d3b
SL		 2651 seq = get_defcfg_sequence(def_conf);
2652 assoc = get_defcfg_association(def_conf);
2653 if (! assoc)
2654 continue;
2655 if (! assoc_speaker)
2656 assoc_speaker = assoc;
2657 else if (assoc_speaker != assoc)
2658 continue;
82bc955f
TI		 2659 if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2660 continue;
2661 cfg->speaker_pins[cfg->speaker_outs] = nid;
81937d3b 2662 sequences_speaker[cfg->speaker_outs] = seq;
82bc955f 2663 cfg->speaker_outs++;
8d88bc3d 2664 break;
e9edcee0 2665 case AC_JACK_HP_OUT:
eb06ed8f
TI		 2666 if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
2667 continue;
2668 cfg->hp_pins[cfg->hp_outs] = nid;
2669 cfg->hp_outs++;
e9edcee0 2670 break;
314634bc
TI		 2671 case AC_JACK_MIC_IN: {
2672 int preferred, alt;
2673 if (loc == AC_JACK_LOC_FRONT) {
2674 preferred = AUTO_PIN_FRONT_MIC;
2675 alt = AUTO_PIN_MIC;
2676 } else {
2677 preferred = AUTO_PIN_MIC;
2678 alt = AUTO_PIN_FRONT_MIC;
2679 }
2680 if (!cfg->input_pins[preferred])
2681 cfg->input_pins[preferred] = nid;
2682 else if (!cfg->input_pins[alt])
2683 cfg->input_pins[alt] = nid;
e9edcee0 2684 break;
314634bc 2685 }
e9edcee0
TI		 2686 case AC_JACK_LINE_IN:
2687 if (loc == AC_JACK_LOC_FRONT)
2688 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2689 else
2690 cfg->input_pins[AUTO_PIN_LINE] = nid;
2691 break;
2692 case AC_JACK_CD:
2693 cfg->input_pins[AUTO_PIN_CD] = nid;
2694 break;
2695 case AC_JACK_AUX:
2696 cfg->input_pins[AUTO_PIN_AUX] = nid;
2697 break;
2698 case AC_JACK_SPDIF_OUT:
2699 cfg->dig_out_pin = nid;
2700 break;
2701 case AC_JACK_SPDIF_IN:
2702 cfg->dig_in_pin = nid;
2703 break;
2704 }
2705 }
2706
2707 /* sort by sequence */
81937d3b
SL		 2708 sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
2709 cfg->line_outs);
2710 sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
2711 cfg->speaker_outs);
2712
2713 /*
2714 * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2715 * as a primary output
2716 */
2717 if (!cfg->line_outs) {
2718 if (cfg->speaker_outs) {
2719 cfg->line_outs = cfg->speaker_outs;
2720 memcpy(cfg->line_out_pins, cfg->speaker_pins,
2721 sizeof(cfg->speaker_pins));
2722 cfg->speaker_outs = 0;
2723 memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2724 cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
2725 } else if (cfg->hp_outs) {
2726 cfg->line_outs = cfg->hp_outs;
2727 memcpy(cfg->line_out_pins, cfg->hp_pins,
2728 sizeof(cfg->hp_pins));
2729 cfg->hp_outs = 0;
2730 memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
2731 cfg->line_out_type = AUTO_PIN_HP_OUT;
2732 }
2733 }
e9edcee0 2734
cb8e2f83
TI		 2735 /* Reorder the surround channels
2736 * ALSA sequence is front/surr/clfe/side
2737 * HDA sequence is:
2738 * 4-ch: front/surr => OK as it is
2739 * 6-ch: front/clfe/surr
9422db40 2740 * 8-ch: front/clfe/rear/side|fc
cb8e2f83
TI		 2741 */
2742 switch (cfg->line_outs) {
2743 case 3:
cb8e2f83
TI		 2744 case 4:
2745 nid = cfg->line_out_pins[1];
9422db40 2746 cfg->line_out_pins[1] = cfg->line_out_pins[2];
cb8e2f83
TI		 2747 cfg->line_out_pins[2] = nid;
2748 break;
e9edcee0
TI		 2749 }
2750
82bc955f
TI		 2751 /*
2752 * debug prints of the parsed results
2753 */
2754 snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2755 cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2756 cfg->line_out_pins[2], cfg->line_out_pins[3],
2757 cfg->line_out_pins[4]);
2758 snd_printd(" speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2759 cfg->speaker_outs, cfg->speaker_pins[0],
2760 cfg->speaker_pins[1], cfg->speaker_pins[2],
2761 cfg->speaker_pins[3], cfg->speaker_pins[4]);
eb06ed8f
TI		 2762 snd_printd(" hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2763 cfg->hp_outs, cfg->hp_pins[0],
2764 cfg->hp_pins[1], cfg->hp_pins[2],
2765 cfg->hp_pins[3], cfg->hp_pins[4]);
82bc955f
TI		 2766 snd_printd(" inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2767 " cd=0x%x, aux=0x%x\n",
2768 cfg->input_pins[AUTO_PIN_MIC],
2769 cfg->input_pins[AUTO_PIN_FRONT_MIC],
2770 cfg->input_pins[AUTO_PIN_LINE],
2771 cfg->input_pins[AUTO_PIN_FRONT_LINE],
2772 cfg->input_pins[AUTO_PIN_CD],
2773 cfg->input_pins[AUTO_PIN_AUX]);
2774
e9edcee0
TI		 2775 return 0;
2776}
2777
4a471b7d
TI		 2778/* labels for input pins */
2779const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2780 "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2781};
2782
2783
1da177e4
LT		 2784#ifdef CONFIG_PM
2785/*
2786 * power management
2787 */
2788
2789/**
2790 * snd_hda_suspend - suspend the codecs
2791 * @bus: the HDA bus
2792 * @state: suspsend state
2793 *
2794 * Returns 0 if successful.
2795 */
2796int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2797{
0ba21762 2798 struct hda_codec *codec;
1da177e4 2799
0ba21762 2800 list_for_each_entry(codec, &bus->codec_list, list) {
0b7a2e9c
TI		 2801#ifdef CONFIG_SND_HDA_POWER_SAVE
2802 if (!codec->power_on)
2803 continue;
2804#endif
cb53c626 2805 hda_call_codec_suspend(codec);
1da177e4
LT		 2806 }
2807 return 0;
2808}
2809
2810/**
2811 * snd_hda_resume - resume the codecs
2812 * @bus: the HDA bus
2813 * @state: resume state
2814 *
2815 * Returns 0 if successful.
cb53c626
TI		 2816 *
2817 * This fucntion is defined only when POWER_SAVE isn't set.
2818 * In the power-save mode, the codec is resumed dynamically.
1da177e4
LT		 2819 */
2820int snd_hda_resume(struct hda_bus *bus)
2821{
0ba21762 2822 struct hda_codec *codec;
1da177e4 2823
0ba21762 2824 list_for_each_entry(codec, &bus->codec_list, list) {
d804ad92
ML		 2825 if (snd_hda_codec_needs_resume(codec))
2826 hda_call_codec_resume(codec);
1da177e4 2827 }
1da177e4
LT		 2828 return 0;
2829}
d804ad92
ML		 2830#ifdef CONFIG_SND_HDA_POWER_SAVE
2831int snd_hda_codecs_inuse(struct hda_bus *bus)
2832{
2833 struct hda_codec *codec;
1da177e4 2834
d804ad92
ML		 2835 list_for_each_entry(codec, &bus->codec_list, list) {
2836 if (snd_hda_codec_needs_resume(codec))
2837 return 1;
2838 }
2839 return 0;
2840}
2841#endif
1da177e4 2842#endif
Linux kernel - Deliverables
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