WorkStruct: make allyesconfig
[linux-3.10.git] / sound / pci / hda / hda_codec.c
1 /*
2  * Universal Interface for Intel High Definition Audio Codec
3  *
4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
5  *
6  *
7  *  This driver is free software; you can redistribute it and/or modify
8  *  it under the terms of the GNU General Public License as published by
9  *  the Free Software Foundation; either version 2 of the License, or
10  *  (at your option) any later version.
11  *
12  *  This driver is distributed in the hope that it will be useful,
13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *  GNU General Public License for more details.
16  *
17  *  You should have received a copy of the GNU General Public License
18  *  along with this program; if not, write to the Free Software
19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  */
21
22 #include <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/slab.h>
26 #include <linux/pci.h>
27 #include <linux/moduleparam.h>
28 #include <linux/mutex.h>
29 #include <sound/core.h>
30 #include "hda_codec.h"
31 #include <sound/asoundef.h>
32 #include <sound/tlv.h>
33 #include <sound/initval.h>
34 #include "hda_local.h"
35
36
37 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
38 MODULE_DESCRIPTION("Universal interface for High Definition Audio Codec");
39 MODULE_LICENSE("GPL");
40
41
42 /*
43  * vendor / preset table
44  */
45
46 struct hda_vendor_id {
47         unsigned int id;
48         const char *name;
49 };
50
51 /* codec vendor labels */
52 static struct hda_vendor_id hda_vendor_ids[] = {
53         { 0x10ec, "Realtek" },
54         { 0x1057, "Motorola" },
55         { 0x11d4, "Analog Devices" },
56         { 0x13f6, "C-Media" },
57         { 0x14f1, "Conexant" },
58         { 0x434d, "C-Media" },
59         { 0x8384, "SigmaTel" },
60         {} /* terminator */
61 };
62
63 /* codec presets */
64 #include "hda_patch.h"
65
66
67 /**
68  * snd_hda_codec_read - send a command and get the response
69  * @codec: the HDA codec
70  * @nid: NID to send the command
71  * @direct: direct flag
72  * @verb: the verb to send
73  * @parm: the parameter for the verb
74  *
75  * Send a single command and read the corresponding response.
76  *
77  * Returns the obtained response value, or -1 for an error.
78  */
79 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
80                                 unsigned int verb, unsigned int parm)
81 {
82         unsigned int res;
83         mutex_lock(&codec->bus->cmd_mutex);
84         if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
85                 res = codec->bus->ops.get_response(codec);
86         else
87                 res = (unsigned int)-1;
88         mutex_unlock(&codec->bus->cmd_mutex);
89         return res;
90 }
91
92 EXPORT_SYMBOL(snd_hda_codec_read);
93
94 /**
95  * snd_hda_codec_write - send a single command without waiting for response
96  * @codec: the HDA codec
97  * @nid: NID to send the command
98  * @direct: direct flag
99  * @verb: the verb to send
100  * @parm: the parameter for the verb
101  *
102  * Send a single command without waiting for response.
103  *
104  * Returns 0 if successful, or a negative error code.
105  */
106 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
107                          unsigned int verb, unsigned int parm)
108 {
109         int err;
110         mutex_lock(&codec->bus->cmd_mutex);
111         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
112         mutex_unlock(&codec->bus->cmd_mutex);
113         return err;
114 }
115
116 EXPORT_SYMBOL(snd_hda_codec_write);
117
118 /**
119  * snd_hda_sequence_write - sequence writes
120  * @codec: the HDA codec
121  * @seq: VERB array to send
122  *
123  * Send the commands sequentially from the given array.
124  * The array must be terminated with NID=0.
125  */
126 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
127 {
128         for (; seq->nid; seq++)
129                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
130 }
131
132 EXPORT_SYMBOL(snd_hda_sequence_write);
133
134 /**
135  * snd_hda_get_sub_nodes - get the range of sub nodes
136  * @codec: the HDA codec
137  * @nid: NID to parse
138  * @start_id: the pointer to store the start NID
139  *
140  * Parse the NID and store the start NID of its sub-nodes.
141  * Returns the number of sub-nodes.
142  */
143 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
144 {
145         unsigned int parm;
146
147         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
148         *start_id = (parm >> 16) & 0x7fff;
149         return (int)(parm & 0x7fff);
150 }
151
152 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
153
154 /**
155  * snd_hda_get_connections - get connection list
156  * @codec: the HDA codec
157  * @nid: NID to parse
158  * @conn_list: connection list array
159  * @max_conns: max. number of connections to store
160  *
161  * Parses the connection list of the given widget and stores the list
162  * of NIDs.
163  *
164  * Returns the number of connections, or a negative error code.
165  */
166 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
167                             hda_nid_t *conn_list, int max_conns)
168 {
169         unsigned int parm;
170         int i, conn_len, conns;
171         unsigned int shift, num_elems, mask;
172         hda_nid_t prev_nid;
173
174         snd_assert(conn_list && max_conns > 0, return -EINVAL);
175
176         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
177         if (parm & AC_CLIST_LONG) {
178                 /* long form */
179                 shift = 16;
180                 num_elems = 2;
181         } else {
182                 /* short form */
183                 shift = 8;
184                 num_elems = 4;
185         }
186         conn_len = parm & AC_CLIST_LENGTH;
187         mask = (1 << (shift-1)) - 1;
188
189         if (! conn_len)
190                 return 0; /* no connection */
191
192         if (conn_len == 1) {
193                 /* single connection */
194                 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
195                 conn_list[0] = parm & mask;
196                 return 1;
197         }
198
199         /* multi connection */
200         conns = 0;
201         prev_nid = 0;
202         for (i = 0; i < conn_len; i++) {
203                 int range_val;
204                 hda_nid_t val, n;
205
206                 if (i % num_elems == 0)
207                         parm = snd_hda_codec_read(codec, nid, 0,
208                                                   AC_VERB_GET_CONNECT_LIST, i);
209                 range_val = !! (parm & (1 << (shift-1))); /* ranges */
210                 val = parm & mask;
211                 parm >>= shift;
212                 if (range_val) {
213                         /* ranges between the previous and this one */
214                         if (! prev_nid || prev_nid >= val) {
215                                 snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", prev_nid, val);
216                                 continue;
217                         }
218                         for (n = prev_nid + 1; n <= val; n++) {
219                                 if (conns >= max_conns) {
220                                         snd_printk(KERN_ERR "Too many connections\n");
221                                         return -EINVAL;
222                                 }
223                                 conn_list[conns++] = n;
224                         }
225                 } else {
226                         if (conns >= max_conns) {
227                                 snd_printk(KERN_ERR "Too many connections\n");
228                                 return -EINVAL;
229                         }
230                         conn_list[conns++] = val;
231                 }
232                 prev_nid = val;
233         }
234         return conns;
235 }
236
237
238 /**
239  * snd_hda_queue_unsol_event - add an unsolicited event to queue
240  * @bus: the BUS
241  * @res: unsolicited event (lower 32bit of RIRB entry)
242  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
243  *
244  * Adds the given event to the queue.  The events are processed in
245  * the workqueue asynchronously.  Call this function in the interrupt
246  * hanlder when RIRB receives an unsolicited event.
247  *
248  * Returns 0 if successful, or a negative error code.
249  */
250 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
251 {
252         struct hda_bus_unsolicited *unsol;
253         unsigned int wp;
254
255         if ((unsol = bus->unsol) == NULL)
256                 return 0;
257
258         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
259         unsol->wp = wp;
260
261         wp <<= 1;
262         unsol->queue[wp] = res;
263         unsol->queue[wp + 1] = res_ex;
264
265         queue_work(unsol->workq, &unsol->work);
266
267         return 0;
268 }
269
270 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
271
272 /*
273  * process queueud unsolicited events
274  */
275 static void process_unsol_events(struct work_struct *work)
276 {
277         struct hda_bus_unsolicited *unsol =
278                 container_of(work, struct hda_bus_unsolicited, work);
279         struct hda_bus *bus = unsol->bus;
280         struct hda_codec *codec;
281         unsigned int rp, caddr, res;
282
283         while (unsol->rp != unsol->wp) {
284                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
285                 unsol->rp = rp;
286                 rp <<= 1;
287                 res = unsol->queue[rp];
288                 caddr = unsol->queue[rp + 1];
289                 if (! (caddr & (1 << 4))) /* no unsolicited event? */
290                         continue;
291                 codec = bus->caddr_tbl[caddr & 0x0f];
292                 if (codec && codec->patch_ops.unsol_event)
293                         codec->patch_ops.unsol_event(codec, res);
294         }
295 }
296
297 /*
298  * initialize unsolicited queue
299  */
300 static int init_unsol_queue(struct hda_bus *bus)
301 {
302         struct hda_bus_unsolicited *unsol;
303
304         if (bus->unsol) /* already initialized */
305                 return 0;
306
307         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
308         if (! unsol) {
309                 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
310                 return -ENOMEM;
311         }
312         unsol->workq = create_singlethread_workqueue("hda_codec");
313         if (! unsol->workq) {
314                 snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
315                 kfree(unsol);
316                 return -ENOMEM;
317         }
318         INIT_WORK(&unsol->work, process_unsol_events);
319         unsol->bus = bus;
320         bus->unsol = unsol;
321         return 0;
322 }
323
324 /*
325  * destructor
326  */
327 static void snd_hda_codec_free(struct hda_codec *codec);
328
329 static int snd_hda_bus_free(struct hda_bus *bus)
330 {
331         struct list_head *p, *n;
332
333         if (! bus)
334                 return 0;
335         if (bus->unsol) {
336                 destroy_workqueue(bus->unsol->workq);
337                 kfree(bus->unsol);
338         }
339         list_for_each_safe(p, n, &bus->codec_list) {
340                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
341                 snd_hda_codec_free(codec);
342         }
343         if (bus->ops.private_free)
344                 bus->ops.private_free(bus);
345         kfree(bus);
346         return 0;
347 }
348
349 static int snd_hda_bus_dev_free(struct snd_device *device)
350 {
351         struct hda_bus *bus = device->device_data;
352         return snd_hda_bus_free(bus);
353 }
354
355 /**
356  * snd_hda_bus_new - create a HDA bus
357  * @card: the card entry
358  * @temp: the template for hda_bus information
359  * @busp: the pointer to store the created bus instance
360  *
361  * Returns 0 if successful, or a negative error code.
362  */
363 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
364                     struct hda_bus **busp)
365 {
366         struct hda_bus *bus;
367         int err;
368         static struct snd_device_ops dev_ops = {
369                 .dev_free = snd_hda_bus_dev_free,
370         };
371
372         snd_assert(temp, return -EINVAL);
373         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
374
375         if (busp)
376                 *busp = NULL;
377
378         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
379         if (bus == NULL) {
380                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
381                 return -ENOMEM;
382         }
383
384         bus->card = card;
385         bus->private_data = temp->private_data;
386         bus->pci = temp->pci;
387         bus->modelname = temp->modelname;
388         bus->ops = temp->ops;
389
390         mutex_init(&bus->cmd_mutex);
391         INIT_LIST_HEAD(&bus->codec_list);
392
393         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
394                 snd_hda_bus_free(bus);
395                 return err;
396         }
397         if (busp)
398                 *busp = bus;
399         return 0;
400 }
401
402 EXPORT_SYMBOL(snd_hda_bus_new);
403
404 /*
405  * find a matching codec preset
406  */
407 static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
408 {
409         const struct hda_codec_preset **tbl, *preset;
410
411         for (tbl = hda_preset_tables; *tbl; tbl++) {
412                 for (preset = *tbl; preset->id; preset++) {
413                         u32 mask = preset->mask;
414                         if (! mask)
415                                 mask = ~0;
416                         if (preset->id == (codec->vendor_id & mask) &&
417                             (! preset->rev ||
418                              preset->rev == codec->revision_id))
419                                 return preset;
420                 }
421         }
422         return NULL;
423 }
424
425 /*
426  * snd_hda_get_codec_name - store the codec name
427  */
428 void snd_hda_get_codec_name(struct hda_codec *codec,
429                             char *name, int namelen)
430 {
431         const struct hda_vendor_id *c;
432         const char *vendor = NULL;
433         u16 vendor_id = codec->vendor_id >> 16;
434         char tmp[16];
435
436         for (c = hda_vendor_ids; c->id; c++) {
437                 if (c->id == vendor_id) {
438                         vendor = c->name;
439                         break;
440                 }
441         }
442         if (! vendor) {
443                 sprintf(tmp, "Generic %04x", vendor_id);
444                 vendor = tmp;
445         }
446         if (codec->preset && codec->preset->name)
447                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
448         else
449                 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
450 }
451
452 /*
453  * look for an AFG and MFG nodes
454  */
455 static void setup_fg_nodes(struct hda_codec *codec)
456 {
457         int i, total_nodes;
458         hda_nid_t nid;
459
460         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
461         for (i = 0; i < total_nodes; i++, nid++) {
462                 switch((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff)) {
463                 case AC_GRP_AUDIO_FUNCTION:
464                         codec->afg = nid;
465                         break;
466                 case AC_GRP_MODEM_FUNCTION:
467                         codec->mfg = nid;
468                         break;
469                 default:
470                         break;
471                 }
472         }
473 }
474
475 /*
476  * read widget caps for each widget and store in cache
477  */
478 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
479 {
480         int i;
481         hda_nid_t nid;
482
483         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
484                                                  &codec->start_nid);
485         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
486         if (! codec->wcaps)
487                 return -ENOMEM;
488         nid = codec->start_nid;
489         for (i = 0; i < codec->num_nodes; i++, nid++)
490                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
491                                                      AC_PAR_AUDIO_WIDGET_CAP);
492         return 0;
493 }
494
495
496 /*
497  * codec destructor
498  */
499 static void snd_hda_codec_free(struct hda_codec *codec)
500 {
501         if (! codec)
502                 return;
503         list_del(&codec->list);
504         codec->bus->caddr_tbl[codec->addr] = NULL;
505         if (codec->patch_ops.free)
506                 codec->patch_ops.free(codec);
507         kfree(codec->amp_info);
508         kfree(codec->wcaps);
509         kfree(codec);
510 }
511
512 static void init_amp_hash(struct hda_codec *codec);
513
514 /**
515  * snd_hda_codec_new - create a HDA codec
516  * @bus: the bus to assign
517  * @codec_addr: the codec address
518  * @codecp: the pointer to store the generated codec
519  *
520  * Returns 0 if successful, or a negative error code.
521  */
522 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
523                       struct hda_codec **codecp)
524 {
525         struct hda_codec *codec;
526         char component[13];
527         int err;
528
529         snd_assert(bus, return -EINVAL);
530         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
531
532         if (bus->caddr_tbl[codec_addr]) {
533                 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
534                 return -EBUSY;
535         }
536
537         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
538         if (codec == NULL) {
539                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
540                 return -ENOMEM;
541         }
542
543         codec->bus = bus;
544         codec->addr = codec_addr;
545         mutex_init(&codec->spdif_mutex);
546         init_amp_hash(codec);
547
548         list_add_tail(&codec->list, &bus->codec_list);
549         bus->caddr_tbl[codec_addr] = codec;
550
551         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
552         if (codec->vendor_id == -1)
553                 /* read again, hopefully the access method was corrected
554                  * in the last read...
555                  */
556                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
557                                                       AC_PAR_VENDOR_ID);
558         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
559         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
560
561         setup_fg_nodes(codec);
562         if (! codec->afg && ! codec->mfg) {
563                 snd_printdd("hda_codec: no AFG or MFG node found\n");
564                 snd_hda_codec_free(codec);
565                 return -ENODEV;
566         }
567
568         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
569                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
570                 snd_hda_codec_free(codec);
571                 return -ENOMEM;
572         }
573
574         if (! codec->subsystem_id) {
575                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
576                 codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
577                                                          AC_VERB_GET_SUBSYSTEM_ID,
578                                                          0);
579         }
580
581         codec->preset = find_codec_preset(codec);
582         if (! *bus->card->mixername)
583                 snd_hda_get_codec_name(codec, bus->card->mixername,
584                                        sizeof(bus->card->mixername));
585
586         if (codec->preset && codec->preset->patch)
587                 err = codec->preset->patch(codec);
588         else
589                 err = snd_hda_parse_generic_codec(codec);
590         if (err < 0) {
591                 snd_hda_codec_free(codec);
592                 return err;
593         }
594
595         if (codec->patch_ops.unsol_event)
596                 init_unsol_queue(bus);
597
598         snd_hda_codec_proc_new(codec);
599
600         sprintf(component, "HDA:%08x", codec->vendor_id);
601         snd_component_add(codec->bus->card, component);
602
603         if (codecp)
604                 *codecp = codec;
605         return 0;
606 }
607
608 EXPORT_SYMBOL(snd_hda_codec_new);
609
610 /**
611  * snd_hda_codec_setup_stream - set up the codec for streaming
612  * @codec: the CODEC to set up
613  * @nid: the NID to set up
614  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
615  * @channel_id: channel id to pass, zero based.
616  * @format: stream format.
617  */
618 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
619                                 int channel_id, int format)
620 {
621         if (! nid)
622                 return;
623
624         snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
625                     nid, stream_tag, channel_id, format);
626         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
627                             (stream_tag << 4) | channel_id);
628         msleep(1);
629         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
630 }
631
632 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
633
634 /*
635  * amp access functions
636  */
637
638 /* FIXME: more better hash key? */
639 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
640 #define INFO_AMP_CAPS   (1<<0)
641 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
642
643 /* initialize the hash table */
644 static void init_amp_hash(struct hda_codec *codec)
645 {
646         memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
647         codec->num_amp_entries = 0;
648         codec->amp_info_size = 0;
649         codec->amp_info = NULL;
650 }
651
652 /* query the hash.  allocate an entry if not found. */
653 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
654 {
655         u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
656         u16 cur = codec->amp_hash[idx];
657         struct hda_amp_info *info;
658
659         while (cur != 0xffff) {
660                 info = &codec->amp_info[cur];
661                 if (info->key == key)
662                         return info;
663                 cur = info->next;
664         }
665
666         /* add a new hash entry */
667         if (codec->num_amp_entries >= codec->amp_info_size) {
668                 /* reallocate the array */
669                 int new_size = codec->amp_info_size + 64;
670                 struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
671                                                         GFP_KERNEL);
672                 if (! new_info) {
673                         snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
674                         return NULL;
675                 }
676                 if (codec->amp_info) {
677                         memcpy(new_info, codec->amp_info,
678                                codec->amp_info_size * sizeof(struct hda_amp_info));
679                         kfree(codec->amp_info);
680                 }
681                 codec->amp_info_size = new_size;
682                 codec->amp_info = new_info;
683         }
684         cur = codec->num_amp_entries++;
685         info = &codec->amp_info[cur];
686         info->key = key;
687         info->status = 0; /* not initialized yet */
688         info->next = codec->amp_hash[idx];
689         codec->amp_hash[idx] = cur;
690
691         return info;
692 }
693
694 /*
695  * query AMP capabilities for the given widget and direction
696  */
697 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
698 {
699         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
700
701         if (! info)
702                 return 0;
703         if (! (info->status & INFO_AMP_CAPS)) {
704                 if (! (get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
705                         nid = codec->afg;
706                 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
707                                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
708                 info->status |= INFO_AMP_CAPS;
709         }
710         return info->amp_caps;
711 }
712
713 /*
714  * read the current volume to info
715  * if the cache exists, read the cache value.
716  */
717 static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
718                          hda_nid_t nid, int ch, int direction, int index)
719 {
720         u32 val, parm;
721
722         if (info->status & INFO_AMP_VOL(ch))
723                 return info->vol[ch];
724
725         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
726         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
727         parm |= index;
728         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
729         info->vol[ch] = val & 0xff;
730         info->status |= INFO_AMP_VOL(ch);
731         return info->vol[ch];
732 }
733
734 /*
735  * write the current volume in info to the h/w and update the cache
736  */
737 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
738                          hda_nid_t nid, int ch, int direction, int index, int val)
739 {
740         u32 parm;
741
742         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
743         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
744         parm |= index << AC_AMP_SET_INDEX_SHIFT;
745         parm |= val;
746         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
747         info->vol[ch] = val;
748 }
749
750 /*
751  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
752  */
753 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
754                            int direction, int index)
755 {
756         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
757         if (! info)
758                 return 0;
759         return get_vol_mute(codec, info, nid, ch, direction, index);
760 }
761
762 /*
763  * update the AMP value, mask = bit mask to set, val = the value
764  */
765 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
766                              int direction, int idx, int mask, int val)
767 {
768         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
769
770         if (! info)
771                 return 0;
772         val &= mask;
773         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
774         if (info->vol[ch] == val && ! codec->in_resume)
775                 return 0;
776         put_vol_mute(codec, info, nid, ch, direction, idx, val);
777         return 1;
778 }
779
780
781 /*
782  * AMP control callbacks
783  */
784 /* retrieve parameters from private_value */
785 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
786 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
787 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
788 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
789
790 /* volume */
791 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
792 {
793         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
794         u16 nid = get_amp_nid(kcontrol);
795         u8 chs = get_amp_channels(kcontrol);
796         int dir = get_amp_direction(kcontrol);
797         u32 caps;
798
799         caps = query_amp_caps(codec, nid, dir);
800         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
801         if (! caps) {
802                 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
803                 return -EINVAL;
804         }
805         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
806         uinfo->count = chs == 3 ? 2 : 1;
807         uinfo->value.integer.min = 0;
808         uinfo->value.integer.max = caps;
809         return 0;
810 }
811
812 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
813 {
814         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
815         hda_nid_t nid = get_amp_nid(kcontrol);
816         int chs = get_amp_channels(kcontrol);
817         int dir = get_amp_direction(kcontrol);
818         int idx = get_amp_index(kcontrol);
819         long *valp = ucontrol->value.integer.value;
820
821         if (chs & 1)
822                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
823         if (chs & 2)
824                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
825         return 0;
826 }
827
828 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
829 {
830         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
831         hda_nid_t nid = get_amp_nid(kcontrol);
832         int chs = get_amp_channels(kcontrol);
833         int dir = get_amp_direction(kcontrol);
834         int idx = get_amp_index(kcontrol);
835         long *valp = ucontrol->value.integer.value;
836         int change = 0;
837
838         if (chs & 1) {
839                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
840                                                   0x7f, *valp);
841                 valp++;
842         }
843         if (chs & 2)
844                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
845                                                    0x7f, *valp);
846         return change;
847 }
848
849 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
850                           unsigned int size, unsigned int __user *_tlv)
851 {
852         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
853         hda_nid_t nid = get_amp_nid(kcontrol);
854         int dir = get_amp_direction(kcontrol);
855         u32 caps, val1, val2;
856
857         if (size < 4 * sizeof(unsigned int))
858                 return -ENOMEM;
859         caps = query_amp_caps(codec, nid, dir);
860         val2 = (((caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT) + 1) * 25;
861         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
862         val1 = ((int)val1) * ((int)val2);
863         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
864                 return -EFAULT;
865         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
866                 return -EFAULT;
867         if (put_user(val1, _tlv + 2))
868                 return -EFAULT;
869         if (put_user(val2, _tlv + 3))
870                 return -EFAULT;
871         return 0;
872 }
873
874 /* switch */
875 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
876 {
877         int chs = get_amp_channels(kcontrol);
878
879         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
880         uinfo->count = chs == 3 ? 2 : 1;
881         uinfo->value.integer.min = 0;
882         uinfo->value.integer.max = 1;
883         return 0;
884 }
885
886 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
887 {
888         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
889         hda_nid_t nid = get_amp_nid(kcontrol);
890         int chs = get_amp_channels(kcontrol);
891         int dir = get_amp_direction(kcontrol);
892         int idx = get_amp_index(kcontrol);
893         long *valp = ucontrol->value.integer.value;
894
895         if (chs & 1)
896                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
897         if (chs & 2)
898                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
899         return 0;
900 }
901
902 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
903 {
904         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
905         hda_nid_t nid = get_amp_nid(kcontrol);
906         int chs = get_amp_channels(kcontrol);
907         int dir = get_amp_direction(kcontrol);
908         int idx = get_amp_index(kcontrol);
909         long *valp = ucontrol->value.integer.value;
910         int change = 0;
911
912         if (chs & 1) {
913                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
914                                                   0x80, *valp ? 0 : 0x80);
915                 valp++;
916         }
917         if (chs & 2)
918                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
919                                                    0x80, *valp ? 0 : 0x80);
920         
921         return change;
922 }
923
924 /*
925  * bound volume controls
926  *
927  * bind multiple volumes (# indices, from 0)
928  */
929
930 #define AMP_VAL_IDX_SHIFT       19
931 #define AMP_VAL_IDX_MASK        (0x0f<<19)
932
933 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
934 {
935         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
936         unsigned long pval;
937         int err;
938
939         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
940         pval = kcontrol->private_value;
941         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
942         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
943         kcontrol->private_value = pval;
944         mutex_unlock(&codec->spdif_mutex);
945         return err;
946 }
947
948 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
949 {
950         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
951         unsigned long pval;
952         int i, indices, err = 0, change = 0;
953
954         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
955         pval = kcontrol->private_value;
956         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
957         for (i = 0; i < indices; i++) {
958                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
959                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
960                 if (err < 0)
961                         break;
962                 change |= err;
963         }
964         kcontrol->private_value = pval;
965         mutex_unlock(&codec->spdif_mutex);
966         return err < 0 ? err : change;
967 }
968
969 /*
970  * SPDIF out controls
971  */
972
973 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
974 {
975         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
976         uinfo->count = 1;
977         return 0;
978 }
979
980 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
981 {
982         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
983                                            IEC958_AES0_NONAUDIO |
984                                            IEC958_AES0_CON_EMPHASIS_5015 |
985                                            IEC958_AES0_CON_NOT_COPYRIGHT;
986         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
987                                            IEC958_AES1_CON_ORIGINAL;
988         return 0;
989 }
990
991 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
992 {
993         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
994                                            IEC958_AES0_NONAUDIO |
995                                            IEC958_AES0_PRO_EMPHASIS_5015;
996         return 0;
997 }
998
999 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1000 {
1001         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1002
1003         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1004         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1005         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1006         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1007
1008         return 0;
1009 }
1010
1011 /* convert from SPDIF status bits to HDA SPDIF bits
1012  * bit 0 (DigEn) is always set zero (to be filled later)
1013  */
1014 static unsigned short convert_from_spdif_status(unsigned int sbits)
1015 {
1016         unsigned short val = 0;
1017
1018         if (sbits & IEC958_AES0_PROFESSIONAL)
1019                 val |= 1 << 6;
1020         if (sbits & IEC958_AES0_NONAUDIO)
1021                 val |= 1 << 5;
1022         if (sbits & IEC958_AES0_PROFESSIONAL) {
1023                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
1024                         val |= 1 << 3;
1025         } else {
1026                 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
1027                         val |= 1 << 3;
1028                 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1029                         val |= 1 << 4;
1030                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1031                         val |= 1 << 7;
1032                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1033         }
1034         return val;
1035 }
1036
1037 /* convert to SPDIF status bits from HDA SPDIF bits
1038  */
1039 static unsigned int convert_to_spdif_status(unsigned short val)
1040 {
1041         unsigned int sbits = 0;
1042
1043         if (val & (1 << 5))
1044                 sbits |= IEC958_AES0_NONAUDIO;
1045         if (val & (1 << 6))
1046                 sbits |= IEC958_AES0_PROFESSIONAL;
1047         if (sbits & IEC958_AES0_PROFESSIONAL) {
1048                 if (sbits & (1 << 3))
1049                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1050         } else {
1051                 if (val & (1 << 3))
1052                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1053                 if (! (val & (1 << 4)))
1054                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1055                 if (val & (1 << 7))
1056                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1057                 sbits |= val & (0x7f << 8);
1058         }
1059         return sbits;
1060 }
1061
1062 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1063 {
1064         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1065         hda_nid_t nid = kcontrol->private_value;
1066         unsigned short val;
1067         int change;
1068
1069         mutex_lock(&codec->spdif_mutex);
1070         codec->spdif_status = ucontrol->value.iec958.status[0] |
1071                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1072                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1073                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1074         val = convert_from_spdif_status(codec->spdif_status);
1075         val |= codec->spdif_ctls & 1;
1076         change = codec->spdif_ctls != val;
1077         codec->spdif_ctls = val;
1078
1079         if (change || codec->in_resume) {
1080                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1081                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
1082         }
1083
1084         mutex_unlock(&codec->spdif_mutex);
1085         return change;
1086 }
1087
1088 static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1089 {
1090         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1091         uinfo->count = 1;
1092         uinfo->value.integer.min = 0;
1093         uinfo->value.integer.max = 1;
1094         return 0;
1095 }
1096
1097 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1098 {
1099         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1100
1101         ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
1102         return 0;
1103 }
1104
1105 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1106 {
1107         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1108         hda_nid_t nid = kcontrol->private_value;
1109         unsigned short val;
1110         int change;
1111
1112         mutex_lock(&codec->spdif_mutex);
1113         val = codec->spdif_ctls & ~1;
1114         if (ucontrol->value.integer.value[0])
1115                 val |= 1;
1116         change = codec->spdif_ctls != val;
1117         if (change || codec->in_resume) {
1118                 codec->spdif_ctls = val;
1119                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1120                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
1121                                     AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
1122                                     AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
1123         }
1124         mutex_unlock(&codec->spdif_mutex);
1125         return change;
1126 }
1127
1128 static struct snd_kcontrol_new dig_mixes[] = {
1129         {
1130                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1131                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1132                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1133                 .info = snd_hda_spdif_mask_info,
1134                 .get = snd_hda_spdif_cmask_get,
1135         },
1136         {
1137                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1138                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1139                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1140                 .info = snd_hda_spdif_mask_info,
1141                 .get = snd_hda_spdif_pmask_get,
1142         },
1143         {
1144                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1145                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1146                 .info = snd_hda_spdif_mask_info,
1147                 .get = snd_hda_spdif_default_get,
1148                 .put = snd_hda_spdif_default_put,
1149         },
1150         {
1151                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1152                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1153                 .info = snd_hda_spdif_out_switch_info,
1154                 .get = snd_hda_spdif_out_switch_get,
1155                 .put = snd_hda_spdif_out_switch_put,
1156         },
1157         { } /* end */
1158 };
1159
1160 /**
1161  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1162  * @codec: the HDA codec
1163  * @nid: audio out widget NID
1164  *
1165  * Creates controls related with the SPDIF output.
1166  * Called from each patch supporting the SPDIF out.
1167  *
1168  * Returns 0 if successful, or a negative error code.
1169  */
1170 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1171 {
1172         int err;
1173         struct snd_kcontrol *kctl;
1174         struct snd_kcontrol_new *dig_mix;
1175
1176         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1177                 kctl = snd_ctl_new1(dig_mix, codec);
1178                 kctl->private_value = nid;
1179                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1180                         return err;
1181         }
1182         codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1183         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1184         return 0;
1185 }
1186
1187 /*
1188  * SPDIF input
1189  */
1190
1191 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1192
1193 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1194 {
1195         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1196
1197         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1198         return 0;
1199 }
1200
1201 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1202 {
1203         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1204         hda_nid_t nid = kcontrol->private_value;
1205         unsigned int val = !!ucontrol->value.integer.value[0];
1206         int change;
1207
1208         mutex_lock(&codec->spdif_mutex);
1209         change = codec->spdif_in_enable != val;
1210         if (change || codec->in_resume) {
1211                 codec->spdif_in_enable = val;
1212                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1213         }
1214         mutex_unlock(&codec->spdif_mutex);
1215         return change;
1216 }
1217
1218 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1219 {
1220         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1221         hda_nid_t nid = kcontrol->private_value;
1222         unsigned short val;
1223         unsigned int sbits;
1224
1225         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1226         sbits = convert_to_spdif_status(val);
1227         ucontrol->value.iec958.status[0] = sbits;
1228         ucontrol->value.iec958.status[1] = sbits >> 8;
1229         ucontrol->value.iec958.status[2] = sbits >> 16;
1230         ucontrol->value.iec958.status[3] = sbits >> 24;
1231         return 0;
1232 }
1233
1234 static struct snd_kcontrol_new dig_in_ctls[] = {
1235         {
1236                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1237                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1238                 .info = snd_hda_spdif_in_switch_info,
1239                 .get = snd_hda_spdif_in_switch_get,
1240                 .put = snd_hda_spdif_in_switch_put,
1241         },
1242         {
1243                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1244                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1245                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1246                 .info = snd_hda_spdif_mask_info,
1247                 .get = snd_hda_spdif_in_status_get,
1248         },
1249         { } /* end */
1250 };
1251
1252 /**
1253  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1254  * @codec: the HDA codec
1255  * @nid: audio in widget NID
1256  *
1257  * Creates controls related with the SPDIF input.
1258  * Called from each patch supporting the SPDIF in.
1259  *
1260  * Returns 0 if successful, or a negative error code.
1261  */
1262 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1263 {
1264         int err;
1265         struct snd_kcontrol *kctl;
1266         struct snd_kcontrol_new *dig_mix;
1267
1268         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1269                 kctl = snd_ctl_new1(dig_mix, codec);
1270                 kctl->private_value = nid;
1271                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1272                         return err;
1273         }
1274         codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1275         return 0;
1276 }
1277
1278
1279 /*
1280  * set power state of the codec
1281  */
1282 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1283                                 unsigned int power_state)
1284 {
1285         hda_nid_t nid, nid_start;
1286         int nodes;
1287
1288         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1289                             power_state);
1290
1291         nodes = snd_hda_get_sub_nodes(codec, fg, &nid_start);
1292         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1293                 if (get_wcaps(codec, nid) & AC_WCAP_POWER)
1294                         snd_hda_codec_write(codec, nid, 0,
1295                                             AC_VERB_SET_POWER_STATE,
1296                                             power_state);
1297         }
1298
1299         if (power_state == AC_PWRST_D0)
1300                 msleep(10);
1301 }
1302
1303
1304 /**
1305  * snd_hda_build_controls - build mixer controls
1306  * @bus: the BUS
1307  *
1308  * Creates mixer controls for each codec included in the bus.
1309  *
1310  * Returns 0 if successful, otherwise a negative error code.
1311  */
1312 int snd_hda_build_controls(struct hda_bus *bus)
1313 {
1314         struct list_head *p;
1315
1316         /* build controls */
1317         list_for_each(p, &bus->codec_list) {
1318                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1319                 int err;
1320                 if (! codec->patch_ops.build_controls)
1321                         continue;
1322                 err = codec->patch_ops.build_controls(codec);
1323                 if (err < 0)
1324                         return err;
1325         }
1326
1327         /* initialize */
1328         list_for_each(p, &bus->codec_list) {
1329                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1330                 int err;
1331                 hda_set_power_state(codec,
1332                                     codec->afg ? codec->afg : codec->mfg,
1333                                     AC_PWRST_D0);
1334                 if (! codec->patch_ops.init)
1335                         continue;
1336                 err = codec->patch_ops.init(codec);
1337                 if (err < 0)
1338                         return err;
1339         }
1340         return 0;
1341 }
1342
1343 EXPORT_SYMBOL(snd_hda_build_controls);
1344
1345 /*
1346  * stream formats
1347  */
1348 struct hda_rate_tbl {
1349         unsigned int hz;
1350         unsigned int alsa_bits;
1351         unsigned int hda_fmt;
1352 };
1353
1354 static struct hda_rate_tbl rate_bits[] = {
1355         /* rate in Hz, ALSA rate bitmask, HDA format value */
1356
1357         /* autodetected value used in snd_hda_query_supported_pcm */
1358         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1359         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1360         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1361         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1362         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1363         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1364         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1365         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1366         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1367         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1368         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1369
1370         /* not autodetected value */
1371         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
1372
1373         { 0 } /* terminator */
1374 };
1375
1376 /**
1377  * snd_hda_calc_stream_format - calculate format bitset
1378  * @rate: the sample rate
1379  * @channels: the number of channels
1380  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1381  * @maxbps: the max. bps
1382  *
1383  * Calculate the format bitset from the given rate, channels and th PCM format.
1384  *
1385  * Return zero if invalid.
1386  */
1387 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1388                                         unsigned int channels,
1389                                         unsigned int format,
1390                                         unsigned int maxbps)
1391 {
1392         int i;
1393         unsigned int val = 0;
1394
1395         for (i = 0; rate_bits[i].hz; i++)
1396                 if (rate_bits[i].hz == rate) {
1397                         val = rate_bits[i].hda_fmt;
1398                         break;
1399                 }
1400         if (! rate_bits[i].hz) {
1401                 snd_printdd("invalid rate %d\n", rate);
1402                 return 0;
1403         }
1404
1405         if (channels == 0 || channels > 8) {
1406                 snd_printdd("invalid channels %d\n", channels);
1407                 return 0;
1408         }
1409         val |= channels - 1;
1410
1411         switch (snd_pcm_format_width(format)) {
1412         case 8:  val |= 0x00; break;
1413         case 16: val |= 0x10; break;
1414         case 20:
1415         case 24:
1416         case 32:
1417                 if (maxbps >= 32)
1418                         val |= 0x40;
1419                 else if (maxbps >= 24)
1420                         val |= 0x30;
1421                 else
1422                         val |= 0x20;
1423                 break;
1424         default:
1425                 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1426                 return 0;
1427         }
1428
1429         return val;
1430 }
1431
1432 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1433
1434 /**
1435  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1436  * @codec: the HDA codec
1437  * @nid: NID to query
1438  * @ratesp: the pointer to store the detected rate bitflags
1439  * @formatsp: the pointer to store the detected formats
1440  * @bpsp: the pointer to store the detected format widths
1441  *
1442  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1443  * or @bsps argument is ignored.
1444  *
1445  * Returns 0 if successful, otherwise a negative error code.
1446  */
1447 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1448                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1449 {
1450         int i;
1451         unsigned int val, streams;
1452
1453         val = 0;
1454         if (nid != codec->afg &&
1455             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1456                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1457                 if (val == -1)
1458                         return -EIO;
1459         }
1460         if (! val)
1461                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1462
1463         if (ratesp) {
1464                 u32 rates = 0;
1465                 for (i = 0; rate_bits[i].hz; i++) {
1466                         if (val & (1 << i))
1467                                 rates |= rate_bits[i].alsa_bits;
1468                 }
1469                 *ratesp = rates;
1470         }
1471
1472         if (formatsp || bpsp) {
1473                 u64 formats = 0;
1474                 unsigned int bps;
1475                 unsigned int wcaps;
1476
1477                 wcaps = get_wcaps(codec, nid);
1478                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1479                 if (streams == -1)
1480                         return -EIO;
1481                 if (! streams) {
1482                         streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1483                         if (streams == -1)
1484                                 return -EIO;
1485                 }
1486
1487                 bps = 0;
1488                 if (streams & AC_SUPFMT_PCM) {
1489                         if (val & AC_SUPPCM_BITS_8) {
1490                                 formats |= SNDRV_PCM_FMTBIT_U8;
1491                                 bps = 8;
1492                         }
1493                         if (val & AC_SUPPCM_BITS_16) {
1494                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1495                                 bps = 16;
1496                         }
1497                         if (wcaps & AC_WCAP_DIGITAL) {
1498                                 if (val & AC_SUPPCM_BITS_32)
1499                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1500                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1501                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1502                                 if (val & AC_SUPPCM_BITS_24)
1503                                         bps = 24;
1504                                 else if (val & AC_SUPPCM_BITS_20)
1505                                         bps = 20;
1506                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1507                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1508                                 if (val & AC_SUPPCM_BITS_32)
1509                                         bps = 32;
1510                                 else if (val & AC_SUPPCM_BITS_24)
1511                                         bps = 24;
1512                                 else if (val & AC_SUPPCM_BITS_20)
1513                                         bps = 20;
1514                         }
1515                 }
1516                 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1517                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1518                         bps = 32;
1519                 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1520                         /* temporary hack: we have still no proper support
1521                          * for the direct AC3 stream...
1522                          */
1523                         formats |= SNDRV_PCM_FMTBIT_U8;
1524                         bps = 8;
1525                 }
1526                 if (formatsp)
1527                         *formatsp = formats;
1528                 if (bpsp)
1529                         *bpsp = bps;
1530         }
1531
1532         return 0;
1533 }
1534
1535 /**
1536  * snd_hda_is_supported_format - check whether the given node supports the format val
1537  *
1538  * Returns 1 if supported, 0 if not.
1539  */
1540 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1541                                 unsigned int format)
1542 {
1543         int i;
1544         unsigned int val = 0, rate, stream;
1545
1546         if (nid != codec->afg &&
1547             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1548                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1549                 if (val == -1)
1550                         return 0;
1551         }
1552         if (! val) {
1553                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1554                 if (val == -1)
1555                         return 0;
1556         }
1557
1558         rate = format & 0xff00;
1559         for (i = 0; rate_bits[i].hz; i++)
1560                 if (rate_bits[i].hda_fmt == rate) {
1561                         if (val & (1 << i))
1562                                 break;
1563                         return 0;
1564                 }
1565         if (! rate_bits[i].hz)
1566                 return 0;
1567
1568         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1569         if (stream == -1)
1570                 return 0;
1571         if (! stream && nid != codec->afg)
1572                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1573         if (! stream || stream == -1)
1574                 return 0;
1575
1576         if (stream & AC_SUPFMT_PCM) {
1577                 switch (format & 0xf0) {
1578                 case 0x00:
1579                         if (! (val & AC_SUPPCM_BITS_8))
1580                                 return 0;
1581                         break;
1582                 case 0x10:
1583                         if (! (val & AC_SUPPCM_BITS_16))
1584                                 return 0;
1585                         break;
1586                 case 0x20:
1587                         if (! (val & AC_SUPPCM_BITS_20))
1588                                 return 0;
1589                         break;
1590                 case 0x30:
1591                         if (! (val & AC_SUPPCM_BITS_24))
1592                                 return 0;
1593                         break;
1594                 case 0x40:
1595                         if (! (val & AC_SUPPCM_BITS_32))
1596                                 return 0;
1597                         break;
1598                 default:
1599                         return 0;
1600                 }
1601         } else {
1602                 /* FIXME: check for float32 and AC3? */
1603         }
1604
1605         return 1;
1606 }
1607
1608 /*
1609  * PCM stuff
1610  */
1611 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1612                                       struct hda_codec *codec,
1613                                       struct snd_pcm_substream *substream)
1614 {
1615         return 0;
1616 }
1617
1618 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1619                                    struct hda_codec *codec,
1620                                    unsigned int stream_tag,
1621                                    unsigned int format,
1622                                    struct snd_pcm_substream *substream)
1623 {
1624         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1625         return 0;
1626 }
1627
1628 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1629                                    struct hda_codec *codec,
1630                                    struct snd_pcm_substream *substream)
1631 {
1632         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1633         return 0;
1634 }
1635
1636 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1637 {
1638         if (info->nid) {
1639                 /* query support PCM information from the given NID */
1640                 if (! info->rates || ! info->formats)
1641                         snd_hda_query_supported_pcm(codec, info->nid,
1642                                                     info->rates ? NULL : &info->rates,
1643                                                     info->formats ? NULL : &info->formats,
1644                                                     info->maxbps ? NULL : &info->maxbps);
1645         }
1646         if (info->ops.open == NULL)
1647                 info->ops.open = hda_pcm_default_open_close;
1648         if (info->ops.close == NULL)
1649                 info->ops.close = hda_pcm_default_open_close;
1650         if (info->ops.prepare == NULL) {
1651                 snd_assert(info->nid, return -EINVAL);
1652                 info->ops.prepare = hda_pcm_default_prepare;
1653         }
1654         if (info->ops.cleanup == NULL) {
1655                 snd_assert(info->nid, return -EINVAL);
1656                 info->ops.cleanup = hda_pcm_default_cleanup;
1657         }
1658         return 0;
1659 }
1660
1661 /**
1662  * snd_hda_build_pcms - build PCM information
1663  * @bus: the BUS
1664  *
1665  * Create PCM information for each codec included in the bus.
1666  *
1667  * The build_pcms codec patch is requested to set up codec->num_pcms and
1668  * codec->pcm_info properly.  The array is referred by the top-level driver
1669  * to create its PCM instances.
1670  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1671  * callback.
1672  *
1673  * At least, substreams, channels_min and channels_max must be filled for
1674  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1675  * When rates and/or formats are zero, the supported values are queried
1676  * from the given nid.  The nid is used also by the default ops.prepare
1677  * and ops.cleanup callbacks.
1678  *
1679  * The driver needs to call ops.open in its open callback.  Similarly,
1680  * ops.close is supposed to be called in the close callback.
1681  * ops.prepare should be called in the prepare or hw_params callback
1682  * with the proper parameters for set up.
1683  * ops.cleanup should be called in hw_free for clean up of streams.
1684  *
1685  * This function returns 0 if successfull, or a negative error code.
1686  */
1687 int snd_hda_build_pcms(struct hda_bus *bus)
1688 {
1689         struct list_head *p;
1690
1691         list_for_each(p, &bus->codec_list) {
1692                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1693                 unsigned int pcm, s;
1694                 int err;
1695                 if (! codec->patch_ops.build_pcms)
1696                         continue;
1697                 err = codec->patch_ops.build_pcms(codec);
1698                 if (err < 0)
1699                         return err;
1700                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1701                         for (s = 0; s < 2; s++) {
1702                                 struct hda_pcm_stream *info;
1703                                 info = &codec->pcm_info[pcm].stream[s];
1704                                 if (! info->substreams)
1705                                         continue;
1706                                 err = set_pcm_default_values(codec, info);
1707                                 if (err < 0)
1708                                         return err;
1709                         }
1710                 }
1711         }
1712         return 0;
1713 }
1714
1715 EXPORT_SYMBOL(snd_hda_build_pcms);
1716
1717 /**
1718  * snd_hda_check_board_config - compare the current codec with the config table
1719  * @codec: the HDA codec
1720  * @tbl: configuration table, terminated by null entries
1721  *
1722  * Compares the modelname or PCI subsystem id of the current codec with the
1723  * given configuration table.  If a matching entry is found, returns its
1724  * config value (supposed to be 0 or positive).
1725  *
1726  * If no entries are matching, the function returns a negative value.
1727  */
1728 int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1729 {
1730         const struct hda_board_config *c;
1731
1732         if (codec->bus->modelname) {
1733                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1734                         if (c->modelname &&
1735                             ! strcmp(codec->bus->modelname, c->modelname)) {
1736                                 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1737                                 return c->config;
1738                         }
1739                 }
1740         }
1741
1742         if (codec->bus->pci) {
1743                 u16 subsystem_vendor, subsystem_device;
1744                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1745                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
1746                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1747                         if (c->pci_subvendor == subsystem_vendor &&
1748                             (! c->pci_subdevice /* all match */||
1749                              (c->pci_subdevice == subsystem_device))) {
1750                                 snd_printdd(KERN_INFO "hda_codec: PCI %x:%x, codec config %d is selected\n",
1751                                             subsystem_vendor, subsystem_device, c->config);
1752                                 return c->config;
1753                         }
1754                 }
1755         }
1756         return -1;
1757 }
1758
1759 /**
1760  * snd_hda_add_new_ctls - create controls from the array
1761  * @codec: the HDA codec
1762  * @knew: the array of struct snd_kcontrol_new
1763  *
1764  * This helper function creates and add new controls in the given array.
1765  * The array must be terminated with an empty entry as terminator.
1766  *
1767  * Returns 0 if successful, or a negative error code.
1768  */
1769 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
1770 {
1771         int err;
1772
1773         for (; knew->name; knew++) {
1774                 struct snd_kcontrol *kctl;
1775                 kctl = snd_ctl_new1(knew, codec);
1776                 if (! kctl)
1777                         return -ENOMEM;
1778                 err = snd_ctl_add(codec->bus->card, kctl);
1779                 if (err < 0) {
1780                         if (! codec->addr)
1781                                 return err;
1782                         kctl = snd_ctl_new1(knew, codec);
1783                         if (! kctl)
1784                                 return -ENOMEM;
1785                         kctl->id.device = codec->addr;
1786                         if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1787                                 return err;
1788                 }
1789         }
1790         return 0;
1791 }
1792
1793
1794 /*
1795  * Channel mode helper
1796  */
1797 int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinfo,
1798                          const struct hda_channel_mode *chmode, int num_chmodes)
1799 {
1800         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1801         uinfo->count = 1;
1802         uinfo->value.enumerated.items = num_chmodes;
1803         if (uinfo->value.enumerated.item >= num_chmodes)
1804                 uinfo->value.enumerated.item = num_chmodes - 1;
1805         sprintf(uinfo->value.enumerated.name, "%dch",
1806                 chmode[uinfo->value.enumerated.item].channels);
1807         return 0;
1808 }
1809
1810 int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1811                         const struct hda_channel_mode *chmode, int num_chmodes,
1812                         int max_channels)
1813 {
1814         int i;
1815
1816         for (i = 0; i < num_chmodes; i++) {
1817                 if (max_channels == chmode[i].channels) {
1818                         ucontrol->value.enumerated.item[0] = i;
1819                         break;
1820                 }
1821         }
1822         return 0;
1823 }
1824
1825 int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1826                         const struct hda_channel_mode *chmode, int num_chmodes,
1827                         int *max_channelsp)
1828 {
1829         unsigned int mode;
1830
1831         mode = ucontrol->value.enumerated.item[0];
1832         snd_assert(mode < num_chmodes, return -EINVAL);
1833         if (*max_channelsp == chmode[mode].channels && ! codec->in_resume)
1834                 return 0;
1835         /* change the current channel setting */
1836         *max_channelsp = chmode[mode].channels;
1837         if (chmode[mode].sequence)
1838                 snd_hda_sequence_write(codec, chmode[mode].sequence);
1839         return 1;
1840 }
1841
1842 /*
1843  * input MUX helper
1844  */
1845 int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo)
1846 {
1847         unsigned int index;
1848
1849         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1850         uinfo->count = 1;
1851         uinfo->value.enumerated.items = imux->num_items;
1852         index = uinfo->value.enumerated.item;
1853         if (index >= imux->num_items)
1854                 index = imux->num_items - 1;
1855         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1856         return 0;
1857 }
1858
1859 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1860                           struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
1861                           unsigned int *cur_val)
1862 {
1863         unsigned int idx;
1864
1865         idx = ucontrol->value.enumerated.item[0];
1866         if (idx >= imux->num_items)
1867                 idx = imux->num_items - 1;
1868         if (*cur_val == idx && ! codec->in_resume)
1869                 return 0;
1870         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1871                             imux->items[idx].index);
1872         *cur_val = idx;
1873         return 1;
1874 }
1875
1876
1877 /*
1878  * Multi-channel / digital-out PCM helper functions
1879  */
1880
1881 /*
1882  * open the digital out in the exclusive mode
1883  */
1884 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1885 {
1886         mutex_lock(&codec->spdif_mutex);
1887         if (mout->dig_out_used) {
1888                 mutex_unlock(&codec->spdif_mutex);
1889                 return -EBUSY; /* already being used */
1890         }
1891         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1892         mutex_unlock(&codec->spdif_mutex);
1893         return 0;
1894 }
1895
1896 /*
1897  * release the digital out
1898  */
1899 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1900 {
1901         mutex_lock(&codec->spdif_mutex);
1902         mout->dig_out_used = 0;
1903         mutex_unlock(&codec->spdif_mutex);
1904         return 0;
1905 }
1906
1907 /*
1908  * set up more restrictions for analog out
1909  */
1910 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1911                                   struct snd_pcm_substream *substream)
1912 {
1913         substream->runtime->hw.channels_max = mout->max_channels;
1914         return snd_pcm_hw_constraint_step(substream->runtime, 0,
1915                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1916 }
1917
1918 /*
1919  * set up the i/o for analog out
1920  * when the digital out is available, copy the front out to digital out, too.
1921  */
1922 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1923                                      unsigned int stream_tag,
1924                                      unsigned int format,
1925                                      struct snd_pcm_substream *substream)
1926 {
1927         hda_nid_t *nids = mout->dac_nids;
1928         int chs = substream->runtime->channels;
1929         int i;
1930
1931         mutex_lock(&codec->spdif_mutex);
1932         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1933                 if (chs == 2 &&
1934                     snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1935                     ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1936                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1937                         /* setup digital receiver */
1938                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1939                                                    stream_tag, 0, format);
1940                 } else {
1941                         mout->dig_out_used = 0;
1942                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1943                 }
1944         }
1945         mutex_unlock(&codec->spdif_mutex);
1946
1947         /* front */
1948         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1949         if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
1950                 /* headphone out will just decode front left/right (stereo) */
1951                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1952         /* extra outputs copied from front */
1953         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1954                 if (mout->extra_out_nid[i])
1955                         snd_hda_codec_setup_stream(codec,
1956                                                    mout->extra_out_nid[i],
1957                                                    stream_tag, 0, format);
1958
1959         /* surrounds */
1960         for (i = 1; i < mout->num_dacs; i++) {
1961                 if (chs >= (i + 1) * 2) /* independent out */
1962                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1963                                                    format);
1964                 else /* copy front */
1965                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1966                                                    format);
1967         }
1968         return 0;
1969 }
1970
1971 /*
1972  * clean up the setting for analog out
1973  */
1974 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1975 {
1976         hda_nid_t *nids = mout->dac_nids;
1977         int i;
1978
1979         for (i = 0; i < mout->num_dacs; i++)
1980                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1981         if (mout->hp_nid)
1982                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1983         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1984                 if (mout->extra_out_nid[i])
1985                         snd_hda_codec_setup_stream(codec,
1986                                                    mout->extra_out_nid[i],
1987                                                    0, 0, 0);
1988         mutex_lock(&codec->spdif_mutex);
1989         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1990                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1991                 mout->dig_out_used = 0;
1992         }
1993         mutex_unlock(&codec->spdif_mutex);
1994         return 0;
1995 }
1996
1997 /*
1998  * Helper for automatic ping configuration
1999  */
2000
2001 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
2002 {
2003         for (; *list; list++)
2004                 if (*list == nid)
2005                         return 1;
2006         return 0;
2007 }
2008
2009 /*
2010  * Parse all pin widgets and store the useful pin nids to cfg
2011  *
2012  * The number of line-outs or any primary output is stored in line_outs,
2013  * and the corresponding output pins are assigned to line_out_pins[],
2014  * in the order of front, rear, CLFE, side, ...
2015  *
2016  * If more extra outputs (speaker and headphone) are found, the pins are
2017  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
2018  * is detected, one of speaker of HP pins is assigned as the primary
2019  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
2020  * if any analog output exists.
2021  * 
2022  * The analog input pins are assigned to input_pins array.
2023  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2024  * respectively.
2025  */
2026 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg,
2027                                  hda_nid_t *ignore_nids)
2028 {
2029         hda_nid_t nid, nid_start;
2030         int i, j, nodes;
2031         short seq, assoc_line_out, sequences[ARRAY_SIZE(cfg->line_out_pins)];
2032
2033         memset(cfg, 0, sizeof(*cfg));
2034
2035         memset(sequences, 0, sizeof(sequences));
2036         assoc_line_out = 0;
2037
2038         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2039         for (nid = nid_start; nid < nodes + nid_start; nid++) {
2040                 unsigned int wid_caps = get_wcaps(codec, nid);
2041                 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2042                 unsigned int def_conf;
2043                 short assoc, loc;
2044
2045                 /* read all default configuration for pin complex */
2046                 if (wid_type != AC_WID_PIN)
2047                         continue;
2048                 /* ignore the given nids (e.g. pc-beep returns error) */
2049                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2050                         continue;
2051
2052                 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
2053                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2054                         continue;
2055                 loc = get_defcfg_location(def_conf);
2056                 switch (get_defcfg_device(def_conf)) {
2057                 case AC_JACK_LINE_OUT:
2058                         seq = get_defcfg_sequence(def_conf);
2059                         assoc = get_defcfg_association(def_conf);
2060                         if (! assoc)
2061                                 continue;
2062                         if (! assoc_line_out)
2063                                 assoc_line_out = assoc;
2064                         else if (assoc_line_out != assoc)
2065                                 continue;
2066                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2067                                 continue;
2068                         cfg->line_out_pins[cfg->line_outs] = nid;
2069                         sequences[cfg->line_outs] = seq;
2070                         cfg->line_outs++;
2071                         break;
2072                 case AC_JACK_SPEAKER:
2073                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2074                                 continue;
2075                         cfg->speaker_pins[cfg->speaker_outs] = nid;
2076                         cfg->speaker_outs++;
2077                         break;
2078                 case AC_JACK_HP_OUT:
2079                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
2080                                 continue;
2081                         cfg->hp_pins[cfg->hp_outs] = nid;
2082                         cfg->hp_outs++;
2083                         break;
2084                 case AC_JACK_MIC_IN: {
2085                         int preferred, alt;
2086                         if (loc == AC_JACK_LOC_FRONT) {
2087                                 preferred = AUTO_PIN_FRONT_MIC;
2088                                 alt = AUTO_PIN_MIC;
2089                         } else {
2090                                 preferred = AUTO_PIN_MIC;
2091                                 alt = AUTO_PIN_FRONT_MIC;
2092                         }
2093                         if (!cfg->input_pins[preferred])
2094                                 cfg->input_pins[preferred] = nid;
2095                         else if (!cfg->input_pins[alt])
2096                                 cfg->input_pins[alt] = nid;
2097                         break;
2098                 }
2099                 case AC_JACK_LINE_IN:
2100                         if (loc == AC_JACK_LOC_FRONT)
2101                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2102                         else
2103                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
2104                         break;
2105                 case AC_JACK_CD:
2106                         cfg->input_pins[AUTO_PIN_CD] = nid;
2107                         break;
2108                 case AC_JACK_AUX:
2109                         cfg->input_pins[AUTO_PIN_AUX] = nid;
2110                         break;
2111                 case AC_JACK_SPDIF_OUT:
2112                         cfg->dig_out_pin = nid;
2113                         break;
2114                 case AC_JACK_SPDIF_IN:
2115                         cfg->dig_in_pin = nid;
2116                         break;
2117                 }
2118         }
2119
2120         /* sort by sequence */
2121         for (i = 0; i < cfg->line_outs; i++)
2122                 for (j = i + 1; j < cfg->line_outs; j++)
2123                         if (sequences[i] > sequences[j]) {
2124                                 seq = sequences[i];
2125                                 sequences[i] = sequences[j];
2126                                 sequences[j] = seq;
2127                                 nid = cfg->line_out_pins[i];
2128                                 cfg->line_out_pins[i] = cfg->line_out_pins[j];
2129                                 cfg->line_out_pins[j] = nid;
2130                         }
2131
2132         /* Reorder the surround channels
2133          * ALSA sequence is front/surr/clfe/side
2134          * HDA sequence is:
2135          *    4-ch: front/surr  =>  OK as it is
2136          *    6-ch: front/clfe/surr
2137          *    8-ch: front/clfe/side/surr
2138          */
2139         switch (cfg->line_outs) {
2140         case 3:
2141                 nid = cfg->line_out_pins[1];
2142                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2143                 cfg->line_out_pins[2] = nid;
2144                 break;
2145         case 4:
2146                 nid = cfg->line_out_pins[1];
2147                 cfg->line_out_pins[1] = cfg->line_out_pins[3];
2148                 cfg->line_out_pins[3] = cfg->line_out_pins[2];
2149                 cfg->line_out_pins[2] = nid;
2150                 break;
2151         }
2152
2153         /*
2154          * debug prints of the parsed results
2155          */
2156         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2157                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2158                    cfg->line_out_pins[2], cfg->line_out_pins[3],
2159                    cfg->line_out_pins[4]);
2160         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2161                    cfg->speaker_outs, cfg->speaker_pins[0],
2162                    cfg->speaker_pins[1], cfg->speaker_pins[2],
2163                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
2164         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2165                    cfg->hp_outs, cfg->hp_pins[0],
2166                    cfg->hp_pins[1], cfg->hp_pins[2],
2167                    cfg->hp_pins[3], cfg->hp_pins[4]);
2168         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2169                    " cd=0x%x, aux=0x%x\n",
2170                    cfg->input_pins[AUTO_PIN_MIC],
2171                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
2172                    cfg->input_pins[AUTO_PIN_LINE],
2173                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
2174                    cfg->input_pins[AUTO_PIN_CD],
2175                    cfg->input_pins[AUTO_PIN_AUX]);
2176
2177         /*
2178          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2179          * as a primary output
2180          */
2181         if (! cfg->line_outs) {
2182                 if (cfg->speaker_outs) {
2183                         cfg->line_outs = cfg->speaker_outs;
2184                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
2185                                sizeof(cfg->speaker_pins));
2186                         cfg->speaker_outs = 0;
2187                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2188                 } else if (cfg->hp_outs) {
2189                         cfg->line_outs = cfg->hp_outs;
2190                         memcpy(cfg->line_out_pins, cfg->hp_pins,
2191                                sizeof(cfg->hp_pins));
2192                         cfg->hp_outs = 0;
2193                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
2194                 }
2195         }
2196
2197         return 0;
2198 }
2199
2200 /* labels for input pins */
2201 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2202         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2203 };
2204
2205
2206 #ifdef CONFIG_PM
2207 /*
2208  * power management
2209  */
2210
2211 /**
2212  * snd_hda_suspend - suspend the codecs
2213  * @bus: the HDA bus
2214  * @state: suspsend state
2215  *
2216  * Returns 0 if successful.
2217  */
2218 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2219 {
2220         struct list_head *p;
2221
2222         /* FIXME: should handle power widget capabilities */
2223         list_for_each(p, &bus->codec_list) {
2224                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2225                 if (codec->patch_ops.suspend)
2226                         codec->patch_ops.suspend(codec, state);
2227                 hda_set_power_state(codec,
2228                                     codec->afg ? codec->afg : codec->mfg,
2229                                     AC_PWRST_D3);
2230         }
2231         return 0;
2232 }
2233
2234 EXPORT_SYMBOL(snd_hda_suspend);
2235
2236 /**
2237  * snd_hda_resume - resume the codecs
2238  * @bus: the HDA bus
2239  * @state: resume state
2240  *
2241  * Returns 0 if successful.
2242  */
2243 int snd_hda_resume(struct hda_bus *bus)
2244 {
2245         struct list_head *p;
2246
2247         list_for_each(p, &bus->codec_list) {
2248                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2249                 hda_set_power_state(codec,
2250                                     codec->afg ? codec->afg : codec->mfg,
2251                                     AC_PWRST_D0);
2252                 if (codec->patch_ops.resume)
2253                         codec->patch_ops.resume(codec);
2254         }
2255         return 0;
2256 }
2257
2258 EXPORT_SYMBOL(snd_hda_resume);
2259
2260 /**
2261  * snd_hda_resume_ctls - resume controls in the new control list
2262  * @codec: the HDA codec
2263  * @knew: the array of struct snd_kcontrol_new
2264  *
2265  * This function resumes the mixer controls in the struct snd_kcontrol_new array,
2266  * originally for snd_hda_add_new_ctls().
2267  * The array must be terminated with an empty entry as terminator.
2268  */
2269 int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2270 {
2271         struct snd_ctl_elem_value *val;
2272
2273         val = kmalloc(sizeof(*val), GFP_KERNEL);
2274         if (! val)
2275                 return -ENOMEM;
2276         codec->in_resume = 1;
2277         for (; knew->name; knew++) {
2278                 int i, count;
2279                 count = knew->count ? knew->count : 1;
2280                 for (i = 0; i < count; i++) {
2281                         memset(val, 0, sizeof(*val));
2282                         val->id.iface = knew->iface;
2283                         val->id.device = knew->device;
2284                         val->id.subdevice = knew->subdevice;
2285                         strcpy(val->id.name, knew->name);
2286                         val->id.index = knew->index ? knew->index : i;
2287                         /* Assume that get callback reads only from cache,
2288                          * not accessing to the real hardware
2289                          */
2290                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
2291                                 continue;
2292                         snd_ctl_elem_write(codec->bus->card, NULL, val);
2293                 }
2294         }
2295         codec->in_resume = 0;
2296         kfree(val);
2297         return 0;
2298 }
2299
2300 /**
2301  * snd_hda_resume_spdif_out - resume the digital out
2302  * @codec: the HDA codec
2303  */
2304 int snd_hda_resume_spdif_out(struct hda_codec *codec)
2305 {
2306         return snd_hda_resume_ctls(codec, dig_mixes);
2307 }
2308
2309 /**
2310  * snd_hda_resume_spdif_in - resume the digital in
2311  * @codec: the HDA codec
2312  */
2313 int snd_hda_resume_spdif_in(struct hda_codec *codec)
2314 {
2315         return snd_hda_resume_ctls(codec, dig_in_ctls);
2316 }
2317 #endif
2318
2319 /*
2320  *  INIT part
2321  */
2322
2323 static int __init alsa_hda_init(void)
2324 {
2325         return 0;
2326 }
2327
2328 static void __exit alsa_hda_exit(void)
2329 {
2330 }
2331
2332 module_init(alsa_hda_init)
2333 module_exit(alsa_hda_exit)