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