git.oblomov.eu Git - linux-2.6/blob - 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         unsol = kcalloc(1, sizeof(*unsol), GFP_KERNEL);
 292         if (! unsol) {
 293                 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
 294                 return -ENOMEM;
 295         }
 296         unsol->workq = create_workqueue("hda_codec");
 297         if (! unsol->workq) {
 298                 snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
 299                 kfree(unsol);
 300                 return -ENOMEM;
 301         }
 302         INIT_WORK(&unsol->work, process_unsol_events, bus);
 303         bus->unsol = unsol;
 304         return 0;
 305 }
 306
 307 /*
 308  * destructor
 309  */
 310 static void snd_hda_codec_free(struct hda_codec *codec);
 311
 312 static int snd_hda_bus_free(struct hda_bus *bus)
 313 {
 314         struct list_head *p, *n;
 315
 316         if (! bus)
 317                 return 0;
 318         if (bus->unsol) {
 319                 destroy_workqueue(bus->unsol->workq);
 320                 kfree(bus->unsol);
 321         }
 322         list_for_each_safe(p, n, &bus->codec_list) {
 323                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
 324                 snd_hda_codec_free(codec);
 325         }
 326         if (bus->ops.private_free)
 327                 bus->ops.private_free(bus);
 328         kfree(bus);
 329         return 0;
 330 }
 331
 332 static int snd_hda_bus_dev_free(snd_device_t *device)
 333 {
 334         struct hda_bus *bus = device->device_data;
 335         return snd_hda_bus_free(bus);
 336 }
 337
 338 /**
 339  * snd_hda_bus_new - create a HDA bus
 340  * @card: the card entry
 341  * @temp: the template for hda_bus information
 342  * @busp: the pointer to store the created bus instance
 343  *
 344  * Returns 0 if successful, or a negative error code.
 345  */
 346 int snd_hda_bus_new(snd_card_t *card, const struct hda_bus_template *temp,
 347                     struct hda_bus **busp)
 348 {
 349         struct hda_bus *bus;
 350         int err;
 351         static snd_device_ops_t dev_ops = {
 352                 .dev_free = snd_hda_bus_dev_free,
 353         };
 354
 355         snd_assert(temp, return -EINVAL);
 356         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
 357
 358         if (busp)
 359                 *busp = NULL;
 360
 361         bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
 362         if (bus == NULL) {
 363                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 364                 return -ENOMEM;
 365         }
 366
 367         bus->card = card;
 368         bus->private_data = temp->private_data;
 369         bus->pci = temp->pci;
 370         bus->modelname = temp->modelname;
 371         bus->ops = temp->ops;
 372
 373         init_MUTEX(&bus->cmd_mutex);
 374         INIT_LIST_HEAD(&bus->codec_list);
 375
 376         init_unsol_queue(bus);
 377
 378         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
 379                 snd_hda_bus_free(bus);
 380                 return err;
 381         }
 382         if (busp)
 383                 *busp = bus;
 384         return 0;
 385 }
 386
 387
 388 /*
 389  * find a matching codec preset
 390  */
 391 static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
 392 {
 393         const struct hda_codec_preset **tbl, *preset;
 394
 395         for (tbl = hda_preset_tables; *tbl; tbl++) {
 396                 for (preset = *tbl; preset->id; preset++) {
 397                         u32 mask = preset->mask;
 398                         if (! mask)
 399                                 mask = ~0;
 400                         if (preset->id == (codec->vendor_id & mask))
 401                                 return preset;
 402                 }
 403         }
 404         return NULL;
 405 }
 406
 407 /*
 408  * snd_hda_get_codec_name - store the codec name
 409  */
 410 void snd_hda_get_codec_name(struct hda_codec *codec,
 411                             char *name, int namelen)
 412 {
 413         const struct hda_vendor_id *c;
 414         const char *vendor = NULL;
 415         u16 vendor_id = codec->vendor_id >> 16;
 416         char tmp[16];
 417
 418         for (c = hda_vendor_ids; c->id; c++) {
 419                 if (c->id == vendor_id) {
 420                         vendor = c->name;
 421                         break;
 422                 }
 423         }
 424         if (! vendor) {
 425                 sprintf(tmp, "Generic %04x", vendor_id);
 426                 vendor = tmp;
 427         }
 428         if (codec->preset && codec->preset->name)
 429                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 430         else
 431                 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
 432 }
 433
 434 /*
 435  * look for an AFG node
 436  *
 437  * return 0 if not found
 438  */
 439 static int look_for_afg_node(struct hda_codec *codec)
 440 {
 441         int i, total_nodes;
 442         hda_nid_t nid;
 443
 444         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 445         for (i = 0; i < total_nodes; i++, nid++) {
 446                 if ((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff) ==
 447                     AC_GRP_AUDIO_FUNCTION)
 448                         return nid;
 449         }
 450         return 0;
 451 }
 452
 453 /*
 454  * codec destructor
 455  */
 456 static void snd_hda_codec_free(struct hda_codec *codec)
 457 {
 458         if (! codec)
 459                 return;
 460         list_del(&codec->list);
 461         codec->bus->caddr_tbl[codec->addr] = NULL;
 462         if (codec->patch_ops.free)
 463                 codec->patch_ops.free(codec);
 464         kfree(codec);
 465 }
 466
 467 static void init_amp_hash(struct hda_codec *codec);
 468
 469 /**
 470  * snd_hda_codec_new - create a HDA codec
 471  * @bus: the bus to assign
 472  * @codec_addr: the codec address
 473  * @codecp: the pointer to store the generated codec
 474  *
 475  * Returns 0 if successful, or a negative error code.
 476  */
 477 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 478                       struct hda_codec **codecp)
 479 {
 480         struct hda_codec *codec;
 481         char component[13];
 482         int err;
 483
 484         snd_assert(bus, return -EINVAL);
 485         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 486
 487         if (bus->caddr_tbl[codec_addr]) {
 488                 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
 489                 return -EBUSY;
 490         }
 491
 492         codec = kcalloc(1, sizeof(*codec), GFP_KERNEL);
 493         if (codec == NULL) {
 494                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 495                 return -ENOMEM;
 496         }
 497
 498         codec->bus = bus;
 499         codec->addr = codec_addr;
 500         init_MUTEX(&codec->spdif_mutex);
 501         init_amp_hash(codec);
 502
 503         list_add_tail(&codec->list, &bus->codec_list);
 504         bus->caddr_tbl[codec_addr] = codec;
 505
 506         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
 507         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
 508         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
 509
 510         /* FIXME: support for multiple AFGs? */
 511         codec->afg = look_for_afg_node(codec);
 512         if (! codec->afg) {
 513                 snd_printdd("hda_codec: no AFG node found\n");
 514                 snd_hda_codec_free(codec);
 515                 return -ENODEV;
 516         }
 517
 518         codec->preset = find_codec_preset(codec);
 519         if (! *bus->card->mixername)
 520                 snd_hda_get_codec_name(codec, bus->card->mixername,
 521                                        sizeof(bus->card->mixername));
 522
 523         if (codec->preset && codec->preset->patch)
 524                 err = codec->preset->patch(codec);
 525         else
 526                 err = snd_hda_parse_generic_codec(codec);
 527         if (err < 0) {
 528                 snd_hda_codec_free(codec);
 529                 return err;
 530         }
 531
 532         snd_hda_codec_proc_new(codec);
 533
 534         sprintf(component, "HDA:%08x", codec->vendor_id);
 535         snd_component_add(codec->bus->card, component);
 536
 537         if (codecp)
 538                 *codecp = codec;
 539         return 0;
 540 }
 541
 542 /**
 543  * snd_hda_codec_setup_stream - set up the codec for streaming
 544  * @codec: the CODEC to set up
 545  * @nid: the NID to set up
 546  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 547  * @channel_id: channel id to pass, zero based.
 548  * @format: stream format.
 549  */
 550 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
 551                                 int channel_id, int format)
 552 {
 553         if (! nid)
 554                 return;
 555
 556         snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 557                     nid, stream_tag, channel_id, format);
 558         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 559                             (stream_tag << 4) | channel_id);
 560         msleep(1);
 561         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 562 }
 563
 564
 565 /*
 566  * amp access functions
 567  */
 568
 569 /* FIXME: more better hash key? */
 570 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 571 #define INFO_AMP_CAPS   (1<<0)
 572 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 573
 574 /* initialize the hash table */
 575 static void init_amp_hash(struct hda_codec *codec)
 576 {
 577         memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
 578         codec->num_amp_entries = 0;
 579 }
 580
 581 /* query the hash.  allocate an entry if not found. */
 582 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 583 {
 584         u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
 585         u16 cur = codec->amp_hash[idx];
 586         struct hda_amp_info *info;
 587
 588         while (cur != 0xffff) {
 589                 info = &codec->amp_info[cur];
 590                 if (info->key == key)
 591                         return info;
 592                 cur = info->next;
 593         }
 594
 595         /* add a new hash entry */
 596         if (codec->num_amp_entries >= ARRAY_SIZE(codec->amp_info)) {
 597                 snd_printk(KERN_ERR "hda_codec: Tooooo many amps!\n");
 598                 return NULL;
 599         }
 600         cur = codec->num_amp_entries++;
 601         info = &codec->amp_info[cur];
 602         info->key = key;
 603         info->status = 0; /* not initialized yet */
 604         info->next = codec->amp_hash[idx];
 605         codec->amp_hash[idx] = cur;
 606
 607         return info;
 608 }
 609
 610 /*
 611  * query AMP capabilities for the given widget and direction
 612  */
 613 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 614 {
 615         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 616
 617         if (! info)
 618                 return 0;
 619         if (! (info->status & INFO_AMP_CAPS)) {
 620                 if (!(snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_AMP_OVRD))
 621                         nid = codec->afg;
 622                 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
 623                                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 624                 info->status |= INFO_AMP_CAPS;
 625         }
 626         return info->amp_caps;
 627 }
 628
 629 /*
 630  * read the current volume to info
 631  * if the cache exists, read the cache value.
 632  */
 633 static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 634                          hda_nid_t nid, int ch, int direction, int index)
 635 {
 636         u32 val, parm;
 637
 638         if (info->status & INFO_AMP_VOL(ch))
 639                 return info->vol[ch];
 640
 641         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 642         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 643         parm |= index;
 644         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
 645         info->vol[ch] = val & 0xff;
 646         info->status |= INFO_AMP_VOL(ch);
 647         return info->vol[ch];
 648 }
 649
 650 /*
 651  * write the current volume in info to the h/w and update the cache
 652  */
 653 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 654                          hda_nid_t nid, int ch, int direction, int index, int val)
 655 {
 656         u32 parm;
 657
 658         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
 659         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
 660         parm |= index << AC_AMP_SET_INDEX_SHIFT;
 661         parm |= val;
 662         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
 663         info->vol[ch] = val;
 664 }
 665
 666 /*
 667  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 668  */
 669 static int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch, int direction, int index)
 670 {
 671         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
 672         if (! info)
 673                 return 0;
 674         return get_vol_mute(codec, info, nid, ch, direction, index);
 675 }
 676
 677 /*
 678  * update the AMP value, mask = bit mask to set, val = the value
 679  */
 680 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)
 681 {
 682         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
 683
 684         if (! info)
 685                 return 0;
 686         val &= mask;
 687         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
 688         if (info->vol[ch] == val && ! codec->in_resume)
 689                 return 0;
 690         put_vol_mute(codec, info, nid, ch, direction, idx, val);
 691         return 1;
 692 }
 693
 694
 695 /*
 696  * AMP control callbacks
 697  */
 698 /* retrieve parameters from private_value */
 699 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 700 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 701 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 702 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 703
 704 /* volume */
 705 int snd_hda_mixer_amp_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 706 {
 707         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 708         u16 nid = get_amp_nid(kcontrol);
 709         u8 chs = get_amp_channels(kcontrol);
 710         int dir = get_amp_direction(kcontrol);
 711         u32 caps;
 712
 713         caps = query_amp_caps(codec, nid, dir);
 714         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
 715         if (! caps) {
 716                 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
 717                 return -EINVAL;
 718         }
 719         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 720         uinfo->count = chs == 3 ? 2 : 1;
 721         uinfo->value.integer.min = 0;
 722         uinfo->value.integer.max = caps;
 723         return 0;
 724 }
 725
 726 int snd_hda_mixer_amp_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 727 {
 728         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 729         hda_nid_t nid = get_amp_nid(kcontrol);
 730         int chs = get_amp_channels(kcontrol);
 731         int dir = get_amp_direction(kcontrol);
 732         int idx = get_amp_index(kcontrol);
 733         long *valp = ucontrol->value.integer.value;
 734
 735         if (chs & 1)
 736                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
 737         if (chs & 2)
 738                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
 739         return 0;
 740 }
 741
 742 int snd_hda_mixer_amp_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 743 {
 744         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 745         hda_nid_t nid = get_amp_nid(kcontrol);
 746         int chs = get_amp_channels(kcontrol);
 747         int dir = get_amp_direction(kcontrol);
 748         int idx = get_amp_index(kcontrol);
 749         long *valp = ucontrol->value.integer.value;
 750         int change = 0;
 751
 752         if (chs & 1)
 753                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 754                                                   0x7f, *valp);
 755         if (chs & 2)
 756                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 757                                                    0x7f, valp[1]);
 758         return change;
 759 }
 760
 761 /* switch */
 762 int snd_hda_mixer_amp_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 763 {
 764         int chs = get_amp_channels(kcontrol);
 765
 766         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 767         uinfo->count = chs == 3 ? 2 : 1;
 768         uinfo->value.integer.min = 0;
 769         uinfo->value.integer.max = 1;
 770         return 0;
 771 }
 772
 773 int snd_hda_mixer_amp_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 774 {
 775         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 776         hda_nid_t nid = get_amp_nid(kcontrol);
 777         int chs = get_amp_channels(kcontrol);
 778         int dir = get_amp_direction(kcontrol);
 779         int idx = get_amp_index(kcontrol);
 780         long *valp = ucontrol->value.integer.value;
 781
 782         if (chs & 1)
 783                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
 784         if (chs & 2)
 785                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
 786         return 0;
 787 }
 788
 789 int snd_hda_mixer_amp_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 790 {
 791         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 792         hda_nid_t nid = get_amp_nid(kcontrol);
 793         int chs = get_amp_channels(kcontrol);
 794         int dir = get_amp_direction(kcontrol);
 795         int idx = get_amp_index(kcontrol);
 796         long *valp = ucontrol->value.integer.value;
 797         int change = 0;
 798
 799         if (chs & 1)
 800                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 801                                                   0x80, *valp ? 0 : 0x80);
 802         if (chs & 2)
 803                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 804                                                    0x80, valp[1] ? 0 : 0x80);
 805         return change;
 806 }
 807
 808 /*
 809  * SPDIF out controls
 810  */
 811
 812 static int snd_hda_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 813 {
 814         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 815         uinfo->count = 1;
 816         return 0;
 817 }
 818
 819 static int snd_hda_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 820 {
 821         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 822                                            IEC958_AES0_NONAUDIO |
 823                                            IEC958_AES0_CON_EMPHASIS_5015 |
 824                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 825         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 826                                            IEC958_AES1_CON_ORIGINAL;
 827         return 0;
 828 }
 829
 830 static int snd_hda_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 831 {
 832         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 833                                            IEC958_AES0_NONAUDIO |
 834                                            IEC958_AES0_PRO_EMPHASIS_5015;
 835         return 0;
 836 }
 837
 838 static int snd_hda_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 839 {
 840         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 841
 842         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
 843         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
 844         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
 845         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
 846
 847         return 0;
 848 }
 849
 850 /* convert from SPDIF status bits to HDA SPDIF bits
 851  * bit 0 (DigEn) is always set zero (to be filled later)
 852  */
 853 static unsigned short convert_from_spdif_status(unsigned int sbits)
 854 {
 855         unsigned short val = 0;
 856
 857         if (sbits & IEC958_AES0_PROFESSIONAL)
 858                 val |= 1 << 6;
 859         if (sbits & IEC958_AES0_NONAUDIO)
 860                 val |= 1 << 5;
 861         if (sbits & IEC958_AES0_PROFESSIONAL) {
 862                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 863                         val |= 1 << 3;
 864         } else {
 865                 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 866                         val |= 1 << 3;
 867                 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
 868                         val |= 1 << 4;
 869                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
 870                         val |= 1 << 7;
 871                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
 872         }
 873         return val;
 874 }
 875
 876 /* convert to SPDIF status bits from HDA SPDIF bits
 877  */
 878 static unsigned int convert_to_spdif_status(unsigned short val)
 879 {
 880         unsigned int sbits = 0;
 881
 882         if (val & (1 << 5))
 883                 sbits |= IEC958_AES0_NONAUDIO;
 884         if (val & (1 << 6))
 885                 sbits |= IEC958_AES0_PROFESSIONAL;
 886         if (sbits & IEC958_AES0_PROFESSIONAL) {
 887                 if (sbits & (1 << 3))
 888                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
 889         } else {
 890                 if (val & (1 << 3))
 891                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
 892                 if (! (val & (1 << 4)))
 893                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
 894                 if (val & (1 << 7))
 895                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
 896                 sbits |= val & (0x7f << 8);
 897         }
 898         return sbits;
 899 }
 900
 901 static int snd_hda_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 902 {
 903         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 904         hda_nid_t nid = kcontrol->private_value;
 905         unsigned short val;
 906         int change;
 907
 908         down(&codec->spdif_mutex);
 909         codec->spdif_status = ucontrol->value.iec958.status[0] |
 910                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
 911                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
 912                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
 913         val = convert_from_spdif_status(codec->spdif_status);
 914         val |= codec->spdif_ctls & 1;
 915         change = codec->spdif_ctls != val;
 916         codec->spdif_ctls = val;
 917
 918         if (change || codec->in_resume) {
 919                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
 920                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
 921         }
 922
 923         up(&codec->spdif_mutex);
 924         return change;
 925 }
 926
 927 static int snd_hda_spdif_out_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 928 {
 929         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 930         uinfo->count = 1;
 931         uinfo->value.integer.min = 0;
 932         uinfo->value.integer.max = 1;
 933         return 0;
 934 }
 935
 936 static int snd_hda_spdif_out_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 937 {
 938         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 939
 940         ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
 941         return 0;
 942 }
 943
 944 static int snd_hda_spdif_out_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 945 {
 946         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 947         hda_nid_t nid = kcontrol->private_value;
 948         unsigned short val;
 949         int change;
 950
 951         down(&codec->spdif_mutex);
 952         val = codec->spdif_ctls & ~1;
 953         if (ucontrol->value.integer.value[0])
 954                 val |= 1;
 955         change = codec->spdif_ctls != val;
 956         if (change || codec->in_resume) {
 957                 codec->spdif_ctls = val;
 958                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
 959                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
 960                                     AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
 961                                     AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
 962         }
 963         up(&codec->spdif_mutex);
 964         return change;
 965 }
 966
 967 static snd_kcontrol_new_t dig_mixes[] = {
 968         {
 969                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 970                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 971                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 972                 .info = snd_hda_spdif_mask_info,
 973                 .get = snd_hda_spdif_cmask_get,
 974         },
 975         {
 976                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 977                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 978                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 979                 .info = snd_hda_spdif_mask_info,
 980                 .get = snd_hda_spdif_pmask_get,
 981         },
 982         {
 983                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 984                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 985                 .info = snd_hda_spdif_mask_info,
 986                 .get = snd_hda_spdif_default_get,
 987                 .put = snd_hda_spdif_default_put,
 988         },
 989         {
 990                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 991                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
 992                 .info = snd_hda_spdif_out_switch_info,
 993                 .get = snd_hda_spdif_out_switch_get,
 994                 .put = snd_hda_spdif_out_switch_put,
 995         },
 996         { } /* end */
 997 };
 998
 999 /**
1000  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1001  * @codec: the HDA codec
1002  * @nid: audio out widget NID
1003  *
1004  * Creates controls related with the SPDIF output.
1005  * Called from each patch supporting the SPDIF out.
1006  *
1007  * Returns 0 if successful, or a negative error code.
1008  */
1009 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1010 {
1011         int err;
1012         snd_kcontrol_t *kctl;
1013         snd_kcontrol_new_t *dig_mix;
1014
1015         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1016                 kctl = snd_ctl_new1(dig_mix, codec);
1017                 kctl->private_value = nid;
1018                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1019                         return err;
1020         }
1021         codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1022         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1023         return 0;
1024 }
1025
1026 /*
1027  * SPDIF input
1028  */
1029
1030 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1031
1032 static int snd_hda_spdif_in_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1033 {
1034         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1035
1036         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1037         return 0;
1038 }
1039
1040 static int snd_hda_spdif_in_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1041 {
1042         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1043         hda_nid_t nid = kcontrol->private_value;
1044         unsigned int val = !!ucontrol->value.integer.value[0];
1045         int change;
1046
1047         down(&codec->spdif_mutex);
1048         change = codec->spdif_in_enable != val;
1049         if (change || codec->in_resume) {
1050                 codec->spdif_in_enable = val;
1051                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1052         }
1053         up(&codec->spdif_mutex);
1054         return change;
1055 }
1056
1057 static int snd_hda_spdif_in_status_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1058 {
1059         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1060         hda_nid_t nid = kcontrol->private_value;
1061         unsigned short val;
1062         unsigned int sbits;
1063
1064         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1065         sbits = convert_to_spdif_status(val);
1066         ucontrol->value.iec958.status[0] = sbits;
1067         ucontrol->value.iec958.status[1] = sbits >> 8;
1068         ucontrol->value.iec958.status[2] = sbits >> 16;
1069         ucontrol->value.iec958.status[3] = sbits >> 24;
1070         return 0;
1071 }
1072
1073 static snd_kcontrol_new_t dig_in_ctls[] = {
1074         {
1075                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1076                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1077                 .info = snd_hda_spdif_in_switch_info,
1078                 .get = snd_hda_spdif_in_switch_get,
1079                 .put = snd_hda_spdif_in_switch_put,
1080         },
1081         {
1082                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1083                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1084                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1085                 .info = snd_hda_spdif_mask_info,
1086                 .get = snd_hda_spdif_in_status_get,
1087         },
1088         { } /* end */
1089 };
1090
1091 /**
1092  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1093  * @codec: the HDA codec
1094  * @nid: audio in widget NID
1095  *
1096  * Creates controls related with the SPDIF input.
1097  * Called from each patch supporting the SPDIF in.
1098  *
1099  * Returns 0 if successful, or a negative error code.
1100  */
1101 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1102 {
1103         int err;
1104         snd_kcontrol_t *kctl;
1105         snd_kcontrol_new_t *dig_mix;
1106
1107         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1108                 kctl = snd_ctl_new1(dig_mix, codec);
1109                 kctl->private_value = nid;
1110                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1111                         return err;
1112         }
1113         codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1114         return 0;
1115 }
1116
1117
1118 /**
1119  * snd_hda_build_controls - build mixer controls
1120  * @bus: the BUS
1121  *
1122  * Creates mixer controls for each codec included in the bus.
1123  *
1124  * Returns 0 if successful, otherwise a negative error code.
1125  */
1126 int snd_hda_build_controls(struct hda_bus *bus)
1127 {
1128         struct list_head *p;
1129
1130         /* build controls */
1131         list_for_each(p, &bus->codec_list) {
1132                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1133                 int err;
1134                 if (! codec->patch_ops.build_controls)
1135                         continue;
1136                 err = codec->patch_ops.build_controls(codec);
1137                 if (err < 0)
1138                         return err;
1139         }
1140
1141         /* initialize */
1142         list_for_each(p, &bus->codec_list) {
1143                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1144                 int err;
1145                 if (! codec->patch_ops.init)
1146                         continue;
1147                 err = codec->patch_ops.init(codec);
1148                 if (err < 0)
1149                         return err;
1150         }
1151         return 0;
1152 }
1153
1154
1155 /*
1156  * stream formats
1157  */
1158 static unsigned int rate_bits[][3] = {
1159         /* rate in Hz, ALSA rate bitmask, HDA format value */
1160         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1161         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1162         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1163         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1164         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1165         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1166         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1167         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1168         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1169         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1170         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1171         { 0 }
1172 };
1173
1174 /**
1175  * snd_hda_calc_stream_format - calculate format bitset
1176  * @rate: the sample rate
1177  * @channels: the number of channels
1178  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1179  * @maxbps: the max. bps
1180  *
1181  * Calculate the format bitset from the given rate, channels and th PCM format.
1182  *
1183  * Return zero if invalid.
1184  */
1185 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1186                                         unsigned int channels,
1187                                         unsigned int format,
1188                                         unsigned int maxbps)
1189 {
1190         int i;
1191         unsigned int val = 0;
1192
1193         for (i = 0; rate_bits[i][0]; i++)
1194                 if (rate_bits[i][0] == rate) {
1195                         val = rate_bits[i][2];
1196                         break;
1197                 }
1198         if (! rate_bits[i][0]) {
1199                 snd_printdd("invalid rate %d\n", rate);
1200                 return 0;
1201         }
1202
1203         if (channels == 0 || channels > 8) {
1204                 snd_printdd("invalid channels %d\n", channels);
1205                 return 0;
1206         }
1207         val |= channels - 1;
1208
1209         switch (snd_pcm_format_width(format)) {
1210         case 8:  val |= 0x00; break;
1211         case 16: val |= 0x10; break;
1212         case 20:
1213         case 24:
1214         case 32:
1215                 if (maxbps >= 32)
1216                         val |= 0x40;
1217                 else if (maxbps >= 24)
1218                         val |= 0x30;
1219                 else
1220                         val |= 0x20;
1221                 break;
1222         default:
1223                 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1224                 return 0;
1225         }
1226
1227         return val;
1228 }
1229
1230 /**
1231  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1232  * @codec: the HDA codec
1233  * @nid: NID to query
1234  * @ratesp: the pointer to store the detected rate bitflags
1235  * @formatsp: the pointer to store the detected formats
1236  * @bpsp: the pointer to store the detected format widths
1237  *
1238  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1239  * or @bsps argument is ignored.
1240  *
1241  * Returns 0 if successful, otherwise a negative error code.
1242  */
1243 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1244                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1245 {
1246         int i;
1247         unsigned int val, streams;
1248
1249         val = 0;
1250         if (nid != codec->afg &&
1251             snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
1252                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1253                 if (val == -1)
1254                         return -EIO;
1255         }
1256         if (! val)
1257                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1258
1259         if (ratesp) {
1260                 u32 rates = 0;
1261                 for (i = 0; rate_bits[i][0]; i++) {
1262                         if (val & (1 << i))
1263                                 rates |= rate_bits[i][1];
1264                 }
1265                 *ratesp = rates;
1266         }
1267
1268         if (formatsp || bpsp) {
1269                 u64 formats = 0;
1270                 unsigned int bps;
1271                 unsigned int wcaps;
1272
1273                 wcaps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
1274                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1275                 if (streams == -1)
1276                         return -EIO;
1277                 if (! streams) {
1278                         streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1279                         if (streams == -1)
1280                                 return -EIO;
1281                 }
1282
1283                 bps = 0;
1284                 if (streams & AC_SUPFMT_PCM) {
1285                         if (val & AC_SUPPCM_BITS_8) {
1286                                 formats |= SNDRV_PCM_FMTBIT_U8;
1287                                 bps = 8;
1288                         }
1289                         if (val & AC_SUPPCM_BITS_16) {
1290                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1291                                 bps = 16;
1292                         }
1293                         if (wcaps & AC_WCAP_DIGITAL) {
1294                                 if (val & AC_SUPPCM_BITS_32)
1295                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1296                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1297                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1298                                 if (val & AC_SUPPCM_BITS_24)
1299                                         bps = 24;
1300                                 else if (val & AC_SUPPCM_BITS_20)
1301                                         bps = 20;
1302                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1303                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1304                                 if (val & AC_SUPPCM_BITS_32)
1305                                         bps = 32;
1306                                 else if (val & AC_SUPPCM_BITS_20)
1307                                         bps = 20;
1308                                 else if (val & AC_SUPPCM_BITS_24)
1309                                         bps = 24;
1310                         }
1311                 }
1312                 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1313                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1314                         bps = 32;
1315                 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1316                         /* temporary hack: we have still no proper support
1317                          * for the direct AC3 stream...
1318                          */
1319                         formats |= SNDRV_PCM_FMTBIT_U8;
1320                         bps = 8;
1321                 }
1322                 if (formatsp)
1323                         *formatsp = formats;
1324                 if (bpsp)
1325                         *bpsp = bps;
1326         }
1327
1328         return 0;
1329 }
1330
1331 /**
1332  * snd_hda_is_supported_format - check whether the given node supports the format val
1333  *
1334  * Returns 1 if supported, 0 if not.
1335  */
1336 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1337                                 unsigned int format)
1338 {
1339         int i;
1340         unsigned int val = 0, rate, stream;
1341
1342         if (nid != codec->afg &&
1343             snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
1344                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1345                 if (val == -1)
1346                         return 0;
1347         }
1348         if (! val) {
1349                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1350                 if (val == -1)
1351                         return 0;
1352         }
1353
1354         rate = format & 0xff00;
1355         for (i = 0; rate_bits[i][0]; i++)
1356                 if (rate_bits[i][2] == rate) {
1357                         if (val & (1 << i))
1358                                 break;
1359                         return 0;
1360                 }
1361         if (! rate_bits[i][0])
1362                 return 0;
1363
1364         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1365         if (stream == -1)
1366                 return 0;
1367         if (! stream && nid != codec->afg)
1368                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1369         if (! stream || stream == -1)
1370                 return 0;
1371
1372         if (stream & AC_SUPFMT_PCM) {
1373                 switch (format & 0xf0) {
1374                 case 0x00:
1375                         if (! (val & AC_SUPPCM_BITS_8))
1376                                 return 0;
1377                         break;
1378                 case 0x10:
1379                         if (! (val & AC_SUPPCM_BITS_16))
1380                                 return 0;
1381                         break;
1382                 case 0x20:
1383                         if (! (val & AC_SUPPCM_BITS_20))
1384                                 return 0;
1385                         break;
1386                 case 0x30:
1387                         if (! (val & AC_SUPPCM_BITS_24))
1388                                 return 0;
1389                         break;
1390                 case 0x40:
1391                         if (! (val & AC_SUPPCM_BITS_32))
1392                                 return 0;
1393                         break;
1394                 default:
1395                         return 0;
1396                 }
1397         } else {
1398                 /* FIXME: check for float32 and AC3? */
1399         }
1400
1401         return 1;
1402 }
1403
1404 /*
1405  * PCM stuff
1406  */
1407 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1408                                       struct hda_codec *codec,
1409                                       snd_pcm_substream_t *substream)
1410 {
1411         return 0;
1412 }
1413
1414 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1415                                    struct hda_codec *codec,
1416                                    unsigned int stream_tag,
1417                                    unsigned int format,
1418                                    snd_pcm_substream_t *substream)
1419 {
1420         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1421         return 0;
1422 }
1423
1424 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1425                                    struct hda_codec *codec,
1426                                    snd_pcm_substream_t *substream)
1427 {
1428         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1429         return 0;
1430 }
1431
1432 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1433 {
1434         if (info->nid) {
1435                 /* query support PCM information from the given NID */
1436                 if (! info->rates || ! info->formats)
1437                         snd_hda_query_supported_pcm(codec, info->nid,
1438                                                     info->rates ? NULL : &info->rates,
1439                                                     info->formats ? NULL : &info->formats,
1440                                                     info->maxbps ? NULL : &info->maxbps);
1441         }
1442         if (info->ops.open == NULL)
1443                 info->ops.open = hda_pcm_default_open_close;
1444         if (info->ops.close == NULL)
1445                 info->ops.close = hda_pcm_default_open_close;
1446         if (info->ops.prepare == NULL) {
1447                 snd_assert(info->nid, return -EINVAL);
1448                 info->ops.prepare = hda_pcm_default_prepare;
1449         }
1450         if (info->ops.cleanup == NULL) {
1451                 snd_assert(info->nid, return -EINVAL);
1452                 info->ops.cleanup = hda_pcm_default_cleanup;
1453         }
1454         return 0;
1455 }
1456
1457 /**
1458  * snd_hda_build_pcms - build PCM information
1459  * @bus: the BUS
1460  *
1461  * Create PCM information for each codec included in the bus.
1462  *
1463  * The build_pcms codec patch is requested to set up codec->num_pcms and
1464  * codec->pcm_info properly.  The array is referred by the top-level driver
1465  * to create its PCM instances.
1466  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1467  * callback.
1468  *
1469  * At least, substreams, channels_min and channels_max must be filled for
1470  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1471  * When rates and/or formats are zero, the supported values are queried
1472  * from the given nid.  The nid is used also by the default ops.prepare
1473  * and ops.cleanup callbacks.
1474  *
1475  * The driver needs to call ops.open in its open callback.  Similarly,
1476  * ops.close is supposed to be called in the close callback.
1477  * ops.prepare should be called in the prepare or hw_params callback
1478  * with the proper parameters for set up.
1479  * ops.cleanup should be called in hw_free for clean up of streams.
1480  *
1481  * This function returns 0 if successfull, or a negative error code.
1482  */
1483 int snd_hda_build_pcms(struct hda_bus *bus)
1484 {
1485         struct list_head *p;
1486
1487         list_for_each(p, &bus->codec_list) {
1488                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1489                 unsigned int pcm, s;
1490                 int err;
1491                 if (! codec->patch_ops.build_pcms)
1492                         continue;
1493                 err = codec->patch_ops.build_pcms(codec);
1494                 if (err < 0)
1495                         return err;
1496                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1497                         for (s = 0; s < 2; s++) {
1498                                 struct hda_pcm_stream *info;
1499                                 info = &codec->pcm_info[pcm].stream[s];
1500                                 if (! info->substreams)
1501                                         continue;
1502                                 err = set_pcm_default_values(codec, info);
1503                                 if (err < 0)
1504                                         return err;
1505                         }
1506                 }
1507         }
1508         return 0;
1509 }
1510
1511
1512 /**
1513  * snd_hda_check_board_config - compare the current codec with the config table
1514  * @codec: the HDA codec
1515  * @tbl: configuration table, terminated by null entries
1516  *
1517  * Compares the modelname or PCI subsystem id of the current codec with the
1518  * given configuration table.  If a matching entry is found, returns its
1519  * config value (supposed to be 0 or positive).
1520  *
1521  * If no entries are matching, the function returns a negative value.
1522  */
1523 int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1524 {
1525         const struct hda_board_config *c;
1526
1527         if (codec->bus->modelname) {
1528                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1529                         if (c->modelname &&
1530                             ! strcmp(codec->bus->modelname, c->modelname)) {
1531                                 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1532                                 return c->config;
1533                         }
1534                 }
1535         }
1536
1537         if (codec->bus->pci) {
1538                 u16 subsystem_vendor, subsystem_device;
1539                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1540                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
1541                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1542                         if (c->pci_subvendor == subsystem_vendor &&
1543                             (! c->pci_subdevice /* all match */||
1544                              (c->pci_subdevice == subsystem_device)))
1545                                 return c->config;
1546                 }
1547         }
1548         return -1;
1549 }
1550
1551 /**
1552  * snd_hda_add_new_ctls - create controls from the array
1553  * @codec: the HDA codec
1554  * @knew: the array of snd_kcontrol_new_t
1555  *
1556  * This helper function creates and add new controls in the given array.
1557  * The array must be terminated with an empty entry as terminator.
1558  *
1559  * Returns 0 if successful, or a negative error code.
1560  */
1561 int snd_hda_add_new_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
1562 {
1563         int err;
1564
1565         for (; knew->name; knew++) {
1566                 err = snd_ctl_add(codec->bus->card, snd_ctl_new1(knew, codec));
1567                 if (err < 0)
1568                         return err;
1569         }
1570         return 0;
1571 }
1572
1573
1574 /*
1575  * input MUX helper
1576  */
1577 int snd_hda_input_mux_info(const struct hda_input_mux *imux, snd_ctl_elem_info_t *uinfo)
1578 {
1579         unsigned int index;
1580
1581         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1582         uinfo->count = 1;
1583         uinfo->value.enumerated.items = imux->num_items;
1584         index = uinfo->value.enumerated.item;
1585         if (index >= imux->num_items)
1586                 index = imux->num_items - 1;
1587         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1588         return 0;
1589 }
1590
1591 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1592                           snd_ctl_elem_value_t *ucontrol, hda_nid_t nid,
1593                           unsigned int *cur_val)
1594 {
1595         unsigned int idx;
1596
1597         idx = ucontrol->value.enumerated.item[0];
1598         if (idx >= imux->num_items)
1599                 idx = imux->num_items - 1;
1600         if (*cur_val == idx && ! codec->in_resume)
1601                 return 0;
1602         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1603                             imux->items[idx].index);
1604         *cur_val = idx;
1605         return 1;
1606 }
1607
1608
1609 /*
1610  * Multi-channel / digital-out PCM helper functions
1611  */
1612
1613 /*
1614  * open the digital out in the exclusive mode
1615  */
1616 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1617 {
1618         down(&codec->spdif_mutex);
1619         if (mout->dig_out_used) {
1620                 up(&codec->spdif_mutex);
1621                 return -EBUSY; /* already being used */
1622         }
1623         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1624         up(&codec->spdif_mutex);
1625         return 0;
1626 }
1627
1628 /*
1629  * release the digital out
1630  */
1631 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1632 {
1633         down(&codec->spdif_mutex);
1634         mout->dig_out_used = 0;
1635         up(&codec->spdif_mutex);
1636         return 0;
1637 }
1638
1639 /*
1640  * set up more restrictions for analog out
1641  */
1642 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1643                                   snd_pcm_substream_t *substream)
1644 {
1645         substream->runtime->hw.channels_max = mout->max_channels;
1646         return snd_pcm_hw_constraint_step(substream->runtime, 0,
1647                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1648 }
1649
1650 /*
1651  * set up the i/o for analog out
1652  * when the digital out is available, copy the front out to digital out, too.
1653  */
1654 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1655                                      unsigned int stream_tag,
1656                                      unsigned int format,
1657                                      snd_pcm_substream_t *substream)
1658 {
1659         hda_nid_t *nids = mout->dac_nids;
1660         int chs = substream->runtime->channels;
1661         int i;
1662
1663         down(&codec->spdif_mutex);
1664         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1665                 if (chs == 2 &&
1666                     snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1667                     ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1668                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1669                         /* setup digital receiver */
1670                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1671                                                    stream_tag, 0, format);
1672                 } else {
1673                         mout->dig_out_used = 0;
1674                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1675                 }
1676         }
1677         up(&codec->spdif_mutex);
1678
1679         /* front */
1680         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1681         if (mout->hp_nid)
1682                 /* headphone out will just decode front left/right (stereo) */
1683                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1684         /* surrounds */
1685         for (i = 1; i < mout->num_dacs; i++) {
1686                 if (chs >= (i + 1) * 2) /* independent out */
1687                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1688                                                    format);
1689                 else /* copy front */
1690                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1691                                                    format);
1692         }
1693         return 0;
1694 }
1695
1696 /*
1697  * clean up the setting for analog out
1698  */
1699 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1700 {
1701         hda_nid_t *nids = mout->dac_nids;
1702         int i;
1703
1704         for (i = 0; i < mout->num_dacs; i++)
1705                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1706         if (mout->hp_nid)
1707                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1708         down(&codec->spdif_mutex);
1709         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1710                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1711                 mout->dig_out_used = 0;
1712         }
1713         up(&codec->spdif_mutex);
1714         return 0;
1715 }
1716
1717 /*
1718  * Helper for automatic ping configuration
1719  */
1720 /* parse all pin widgets and store the useful pin nids to cfg */
1721 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg)
1722 {
1723         hda_nid_t nid, nid_start;
1724         int i, j, nodes;
1725         short seq, sequences[4], assoc_line_out;
1726
1727         memset(cfg, 0, sizeof(*cfg));
1728
1729         memset(sequences, 0, sizeof(sequences));
1730         assoc_line_out = 0;
1731
1732         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
1733         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1734                 unsigned int wid_caps = snd_hda_param_read(codec, nid,
1735                                                            AC_PAR_AUDIO_WIDGET_CAP);
1736                 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
1737                 unsigned int def_conf;
1738                 short assoc, loc;
1739
1740                 /* read all default configuration for pin complex */
1741                 if (wid_type != AC_WID_PIN)
1742                         continue;
1743                 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
1744                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
1745                         continue;
1746                 loc = get_defcfg_location(def_conf);
1747                 switch (get_defcfg_device(def_conf)) {
1748                 case AC_JACK_LINE_OUT:
1749                 case AC_JACK_SPEAKER:
1750                         seq = get_defcfg_sequence(def_conf);
1751                         assoc = get_defcfg_association(def_conf);
1752                         if (! assoc)
1753                                 continue;
1754                         if (! assoc_line_out)
1755                                 assoc_line_out = assoc;
1756                         else if (assoc_line_out != assoc)
1757                                 continue;
1758                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
1759                                 continue;
1760                         cfg->line_out_pins[cfg->line_outs] = nid;
1761                         sequences[cfg->line_outs] = seq;
1762                         cfg->line_outs++;
1763                         break;
1764                 case AC_JACK_HP_OUT:
1765                         cfg->hp_pin = nid;
1766                         break;
1767                 case AC_JACK_MIC_IN:
1768                         if (loc == AC_JACK_LOC_FRONT)
1769                                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = nid;
1770                         else
1771                                 cfg->input_pins[AUTO_PIN_MIC] = nid;
1772                         break;
1773                 case AC_JACK_LINE_IN:
1774                         if (loc == AC_JACK_LOC_FRONT)
1775                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
1776                         else
1777                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
1778                         break;
1779                 case AC_JACK_CD:
1780                         cfg->input_pins[AUTO_PIN_CD] = nid;
1781                         break;
1782                 case AC_JACK_AUX:
1783                         cfg->input_pins[AUTO_PIN_AUX] = nid;
1784                         break;
1785                 case AC_JACK_SPDIF_OUT:
1786                         cfg->dig_out_pin = nid;
1787                         break;
1788                 case AC_JACK_SPDIF_IN:
1789                         cfg->dig_in_pin = nid;
1790                         break;
1791                 }
1792         }
1793
1794         /* sort by sequence */
1795         for (i = 0; i < cfg->line_outs; i++)
1796                 for (j = i + 1; j < cfg->line_outs; j++)
1797                         if (sequences[i] > sequences[j]) {
1798                                 seq = sequences[i];
1799                                 sequences[i] = sequences[j];
1800                                 sequences[j] = seq;
1801                                 nid = cfg->line_out_pins[i];
1802                                 cfg->line_out_pins[i] = cfg->line_out_pins[j];
1803                                 cfg->line_out_pins[j] = nid;
1804                         }
1805
1806         /* Swap surround and CLFE: the association order is front/CLFE/surr/back */
1807         if (cfg->line_outs >= 3) {
1808                 nid = cfg->line_out_pins[1];
1809                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
1810                 cfg->line_out_pins[2] = nid;
1811         }
1812
1813         return 0;
1814 }
1815
1816 #ifdef CONFIG_PM
1817 /*
1818  * power management
1819  */
1820
1821 /**
1822  * snd_hda_suspend - suspend the codecs
1823  * @bus: the HDA bus
1824  * @state: suspsend state
1825  *
1826  * Returns 0 if successful.
1827  */
1828 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
1829 {
1830         struct list_head *p;
1831
1832         /* FIXME: should handle power widget capabilities */
1833         list_for_each(p, &bus->codec_list) {
1834                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1835                 if (codec->patch_ops.suspend)
1836                         codec->patch_ops.suspend(codec, state);
1837         }
1838         return 0;
1839 }
1840
1841 /**
1842  * snd_hda_resume - resume the codecs
1843  * @bus: the HDA bus
1844  * @state: resume state
1845  *
1846  * Returns 0 if successful.
1847  */
1848 int snd_hda_resume(struct hda_bus *bus)
1849 {
1850         struct list_head *p;
1851
1852         list_for_each(p, &bus->codec_list) {
1853                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1854                 if (codec->patch_ops.resume)
1855                         codec->patch_ops.resume(codec);
1856         }
1857         return 0;
1858 }
1859
1860 /**
1861  * snd_hda_resume_ctls - resume controls in the new control list
1862  * @codec: the HDA codec
1863  * @knew: the array of snd_kcontrol_new_t
1864  *
1865  * This function resumes the mixer controls in the snd_kcontrol_new_t array,
1866  * originally for snd_hda_add_new_ctls().
1867  * The array must be terminated with an empty entry as terminator.
1868  */
1869 int snd_hda_resume_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
1870 {
1871         snd_ctl_elem_value_t *val;
1872
1873         val = kmalloc(sizeof(*val), GFP_KERNEL);
1874         if (! val)
1875                 return -ENOMEM;
1876         codec->in_resume = 1;
1877         for (; knew->name; knew++) {
1878                 int i, count;
1879                 count = knew->count ? knew->count : 1;
1880                 for (i = 0; i < count; i++) {
1881                         memset(val, 0, sizeof(*val));
1882                         val->id.iface = knew->iface;
1883                         val->id.device = knew->device;
1884                         val->id.subdevice = knew->subdevice;
1885                         strcpy(val->id.name, knew->name);
1886                         val->id.index = knew->index ? knew->index : i;
1887                         /* Assume that get callback reads only from cache,
1888                          * not accessing to the real hardware
1889                          */
1890                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
1891                                 continue;
1892                         snd_ctl_elem_write(codec->bus->card, NULL, val);
1893                 }
1894         }
1895         codec->in_resume = 0;
1896         kfree(val);
1897         return 0;
1898 }
1899
1900 /**
1901  * snd_hda_resume_spdif_out - resume the digital out
1902  * @codec: the HDA codec
1903  */
1904 int snd_hda_resume_spdif_out(struct hda_codec *codec)
1905 {
1906         return snd_hda_resume_ctls(codec, dig_mixes);
1907 }
1908
1909 /**
1910  * snd_hda_resume_spdif_in - resume the digital in
1911  * @codec: the HDA codec
1912  */
1913 int snd_hda_resume_spdif_in(struct hda_codec *codec)
1914 {
1915         return snd_hda_resume_ctls(codec, dig_in_ctls);
1916 }
1917 #endif
1918
1919 /*
1920  * symbols exported for controller modules
1921  */
1922 EXPORT_SYMBOL(snd_hda_codec_read);
1923 EXPORT_SYMBOL(snd_hda_codec_write);
1924 EXPORT_SYMBOL(snd_hda_sequence_write);
1925 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
1926 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
1927 EXPORT_SYMBOL(snd_hda_bus_new);
1928 EXPORT_SYMBOL(snd_hda_codec_new);
1929 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
1930 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1931 EXPORT_SYMBOL(snd_hda_build_pcms);
1932 EXPORT_SYMBOL(snd_hda_build_controls);
1933 #ifdef CONFIG_PM
1934 EXPORT_SYMBOL(snd_hda_suspend);
1935 EXPORT_SYMBOL(snd_hda_resume);
1936 #endif
1937
1938 /*
1939  *  INIT part
1940  */
1941
1942 static int __init alsa_hda_init(void)
1943 {
1944         return 0;
1945 }
1946
1947 static void __exit alsa_hda_exit(void)
1948 {
1949 }
1950
1951 module_init(alsa_hda_init)
1952 module_exit(alsa_hda_exit)