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                 valp++;
 756         }
 757         if (chs & 2)
 758                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 759                                                    0x7f, *valp);
 760         return change;
 761 }
 762
 763 /* switch */
 764 int snd_hda_mixer_amp_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 765 {
 766         int chs = get_amp_channels(kcontrol);
 767
 768         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 769         uinfo->count = chs == 3 ? 2 : 1;
 770         uinfo->value.integer.min = 0;
 771         uinfo->value.integer.max = 1;
 772         return 0;
 773 }
 774
 775 int snd_hda_mixer_amp_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 776 {
 777         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 778         hda_nid_t nid = get_amp_nid(kcontrol);
 779         int chs = get_amp_channels(kcontrol);
 780         int dir = get_amp_direction(kcontrol);
 781         int idx = get_amp_index(kcontrol);
 782         long *valp = ucontrol->value.integer.value;
 783
 784         if (chs & 1)
 785                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
 786         if (chs & 2)
 787                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
 788         return 0;
 789 }
 790
 791 int snd_hda_mixer_amp_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 792 {
 793         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 794         hda_nid_t nid = get_amp_nid(kcontrol);
 795         int chs = get_amp_channels(kcontrol);
 796         int dir = get_amp_direction(kcontrol);
 797         int idx = get_amp_index(kcontrol);
 798         long *valp = ucontrol->value.integer.value;
 799         int change = 0;
 800
 801         if (chs & 1) {
 802                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 803                                                   0x80, *valp ? 0 : 0x80);
 804                 valp++;
 805         }
 806         if (chs & 2)
 807                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 808                                                    0x80, *valp ? 0 : 0x80);
 809
 810         return change;
 811 }
 812
 813 /*
 814  * SPDIF out controls
 815  */
 816
 817 static int snd_hda_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 818 {
 819         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 820         uinfo->count = 1;
 821         return 0;
 822 }
 823
 824 static int snd_hda_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 825 {
 826         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 827                                            IEC958_AES0_NONAUDIO |
 828                                            IEC958_AES0_CON_EMPHASIS_5015 |
 829                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 830         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 831                                            IEC958_AES1_CON_ORIGINAL;
 832         return 0;
 833 }
 834
 835 static int snd_hda_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 836 {
 837         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 838                                            IEC958_AES0_NONAUDIO |
 839                                            IEC958_AES0_PRO_EMPHASIS_5015;
 840         return 0;
 841 }
 842
 843 static int snd_hda_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 844 {
 845         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 846
 847         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
 848         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
 849         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
 850         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
 851
 852         return 0;
 853 }
 854
 855 /* convert from SPDIF status bits to HDA SPDIF bits
 856  * bit 0 (DigEn) is always set zero (to be filled later)
 857  */
 858 static unsigned short convert_from_spdif_status(unsigned int sbits)
 859 {
 860         unsigned short val = 0;
 861
 862         if (sbits & IEC958_AES0_PROFESSIONAL)
 863                 val |= 1 << 6;
 864         if (sbits & IEC958_AES0_NONAUDIO)
 865                 val |= 1 << 5;
 866         if (sbits & IEC958_AES0_PROFESSIONAL) {
 867                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 868                         val |= 1 << 3;
 869         } else {
 870                 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 871                         val |= 1 << 3;
 872                 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
 873                         val |= 1 << 4;
 874                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
 875                         val |= 1 << 7;
 876                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
 877         }
 878         return val;
 879 }
 880
 881 /* convert to SPDIF status bits from HDA SPDIF bits
 882  */
 883 static unsigned int convert_to_spdif_status(unsigned short val)
 884 {
 885         unsigned int sbits = 0;
 886
 887         if (val & (1 << 5))
 888                 sbits |= IEC958_AES0_NONAUDIO;
 889         if (val & (1 << 6))
 890                 sbits |= IEC958_AES0_PROFESSIONAL;
 891         if (sbits & IEC958_AES0_PROFESSIONAL) {
 892                 if (sbits & (1 << 3))
 893                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
 894         } else {
 895                 if (val & (1 << 3))
 896                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
 897                 if (! (val & (1 << 4)))
 898                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
 899                 if (val & (1 << 7))
 900                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
 901                 sbits |= val & (0x7f << 8);
 902         }
 903         return sbits;
 904 }
 905
 906 static int snd_hda_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 907 {
 908         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 909         hda_nid_t nid = kcontrol->private_value;
 910         unsigned short val;
 911         int change;
 912
 913         down(&codec->spdif_mutex);
 914         codec->spdif_status = ucontrol->value.iec958.status[0] |
 915                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
 916                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
 917                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
 918         val = convert_from_spdif_status(codec->spdif_status);
 919         val |= codec->spdif_ctls & 1;
 920         change = codec->spdif_ctls != val;
 921         codec->spdif_ctls = val;
 922
 923         if (change || codec->in_resume) {
 924                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
 925                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
 926         }
 927
 928         up(&codec->spdif_mutex);
 929         return change;
 930 }
 931
 932 static int snd_hda_spdif_out_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 933 {
 934         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 935         uinfo->count = 1;
 936         uinfo->value.integer.min = 0;
 937         uinfo->value.integer.max = 1;
 938         return 0;
 939 }
 940
 941 static int snd_hda_spdif_out_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 942 {
 943         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 944
 945         ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
 946         return 0;
 947 }
 948
 949 static int snd_hda_spdif_out_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 950 {
 951         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 952         hda_nid_t nid = kcontrol->private_value;
 953         unsigned short val;
 954         int change;
 955
 956         down(&codec->spdif_mutex);
 957         val = codec->spdif_ctls & ~1;
 958         if (ucontrol->value.integer.value[0])
 959                 val |= 1;
 960         change = codec->spdif_ctls != val;
 961         if (change || codec->in_resume) {
 962                 codec->spdif_ctls = val;
 963                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
 964                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
 965                                     AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
 966                                     AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
 967         }
 968         up(&codec->spdif_mutex);
 969         return change;
 970 }
 971
 972 static snd_kcontrol_new_t dig_mixes[] = {
 973         {
 974                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 975                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 976                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 977                 .info = snd_hda_spdif_mask_info,
 978                 .get = snd_hda_spdif_cmask_get,
 979         },
 980         {
 981                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 982                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 983                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 984                 .info = snd_hda_spdif_mask_info,
 985                 .get = snd_hda_spdif_pmask_get,
 986         },
 987         {
 988                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 989                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 990                 .info = snd_hda_spdif_mask_info,
 991                 .get = snd_hda_spdif_default_get,
 992                 .put = snd_hda_spdif_default_put,
 993         },
 994         {
 995                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 996                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
 997                 .info = snd_hda_spdif_out_switch_info,
 998                 .get = snd_hda_spdif_out_switch_get,
 999                 .put = snd_hda_spdif_out_switch_put,
1000         },
1001         { } /* end */
1002 };
1003
1004 /**
1005  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1006  * @codec: the HDA codec
1007  * @nid: audio out widget NID
1008  *
1009  * Creates controls related with the SPDIF output.
1010  * Called from each patch supporting the SPDIF out.
1011  *
1012  * Returns 0 if successful, or a negative error code.
1013  */
1014 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1015 {
1016         int err;
1017         snd_kcontrol_t *kctl;
1018         snd_kcontrol_new_t *dig_mix;
1019
1020         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1021                 kctl = snd_ctl_new1(dig_mix, codec);
1022                 kctl->private_value = nid;
1023                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1024                         return err;
1025         }
1026         codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1027         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1028         return 0;
1029 }
1030
1031 /*
1032  * SPDIF input
1033  */
1034
1035 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1036
1037 static int snd_hda_spdif_in_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1038 {
1039         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1040
1041         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1042         return 0;
1043 }
1044
1045 static int snd_hda_spdif_in_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1046 {
1047         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1048         hda_nid_t nid = kcontrol->private_value;
1049         unsigned int val = !!ucontrol->value.integer.value[0];
1050         int change;
1051
1052         down(&codec->spdif_mutex);
1053         change = codec->spdif_in_enable != val;
1054         if (change || codec->in_resume) {
1055                 codec->spdif_in_enable = val;
1056                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1057         }
1058         up(&codec->spdif_mutex);
1059         return change;
1060 }
1061
1062 static int snd_hda_spdif_in_status_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1063 {
1064         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1065         hda_nid_t nid = kcontrol->private_value;
1066         unsigned short val;
1067         unsigned int sbits;
1068
1069         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1070         sbits = convert_to_spdif_status(val);
1071         ucontrol->value.iec958.status[0] = sbits;
1072         ucontrol->value.iec958.status[1] = sbits >> 8;
1073         ucontrol->value.iec958.status[2] = sbits >> 16;
1074         ucontrol->value.iec958.status[3] = sbits >> 24;
1075         return 0;
1076 }
1077
1078 static snd_kcontrol_new_t dig_in_ctls[] = {
1079         {
1080                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1081                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1082                 .info = snd_hda_spdif_in_switch_info,
1083                 .get = snd_hda_spdif_in_switch_get,
1084                 .put = snd_hda_spdif_in_switch_put,
1085         },
1086         {
1087                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1088                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1089                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1090                 .info = snd_hda_spdif_mask_info,
1091                 .get = snd_hda_spdif_in_status_get,
1092         },
1093         { } /* end */
1094 };
1095
1096 /**
1097  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1098  * @codec: the HDA codec
1099  * @nid: audio in widget NID
1100  *
1101  * Creates controls related with the SPDIF input.
1102  * Called from each patch supporting the SPDIF in.
1103  *
1104  * Returns 0 if successful, or a negative error code.
1105  */
1106 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1107 {
1108         int err;
1109         snd_kcontrol_t *kctl;
1110         snd_kcontrol_new_t *dig_mix;
1111
1112         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1113                 kctl = snd_ctl_new1(dig_mix, codec);
1114                 kctl->private_value = nid;
1115                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1116                         return err;
1117         }
1118         codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1119         return 0;
1120 }
1121
1122
1123 /**
1124  * snd_hda_build_controls - build mixer controls
1125  * @bus: the BUS
1126  *
1127  * Creates mixer controls for each codec included in the bus.
1128  *
1129  * Returns 0 if successful, otherwise a negative error code.
1130  */
1131 int snd_hda_build_controls(struct hda_bus *bus)
1132 {
1133         struct list_head *p;
1134
1135         /* build controls */
1136         list_for_each(p, &bus->codec_list) {
1137                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1138                 int err;
1139                 if (! codec->patch_ops.build_controls)
1140                         continue;
1141                 err = codec->patch_ops.build_controls(codec);
1142                 if (err < 0)
1143                         return err;
1144         }
1145
1146         /* initialize */
1147         list_for_each(p, &bus->codec_list) {
1148                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1149                 int err;
1150                 if (! codec->patch_ops.init)
1151                         continue;
1152                 err = codec->patch_ops.init(codec);
1153                 if (err < 0)
1154                         return err;
1155         }
1156         return 0;
1157 }
1158
1159
1160 /*
1161  * stream formats
1162  */
1163 static unsigned int rate_bits[][3] = {
1164         /* rate in Hz, ALSA rate bitmask, HDA format value */
1165         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1166         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1167         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1168         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1169         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1170         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1171         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1172         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1173         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1174         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1175         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1176         { 0 }
1177 };
1178
1179 /**
1180  * snd_hda_calc_stream_format - calculate format bitset
1181  * @rate: the sample rate
1182  * @channels: the number of channels
1183  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1184  * @maxbps: the max. bps
1185  *
1186  * Calculate the format bitset from the given rate, channels and th PCM format.
1187  *
1188  * Return zero if invalid.
1189  */
1190 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1191                                         unsigned int channels,
1192                                         unsigned int format,
1193                                         unsigned int maxbps)
1194 {
1195         int i;
1196         unsigned int val = 0;
1197
1198         for (i = 0; rate_bits[i][0]; i++)
1199                 if (rate_bits[i][0] == rate) {
1200                         val = rate_bits[i][2];
1201                         break;
1202                 }
1203         if (! rate_bits[i][0]) {
1204                 snd_printdd("invalid rate %d\n", rate);
1205                 return 0;
1206         }
1207
1208         if (channels == 0 || channels > 8) {
1209                 snd_printdd("invalid channels %d\n", channels);
1210                 return 0;
1211         }
1212         val |= channels - 1;
1213
1214         switch (snd_pcm_format_width(format)) {
1215         case 8:  val |= 0x00; break;
1216         case 16: val |= 0x10; break;
1217         case 20:
1218         case 24:
1219         case 32:
1220                 if (maxbps >= 32)
1221                         val |= 0x40;
1222                 else if (maxbps >= 24)
1223                         val |= 0x30;
1224                 else
1225                         val |= 0x20;
1226                 break;
1227         default:
1228                 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1229                 return 0;
1230         }
1231
1232         return val;
1233 }
1234
1235 /**
1236  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1237  * @codec: the HDA codec
1238  * @nid: NID to query
1239  * @ratesp: the pointer to store the detected rate bitflags
1240  * @formatsp: the pointer to store the detected formats
1241  * @bpsp: the pointer to store the detected format widths
1242  *
1243  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1244  * or @bsps argument is ignored.
1245  *
1246  * Returns 0 if successful, otherwise a negative error code.
1247  */
1248 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1249                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1250 {
1251         int i;
1252         unsigned int val, streams;
1253
1254         val = 0;
1255         if (nid != codec->afg &&
1256             snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
1257                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1258                 if (val == -1)
1259                         return -EIO;
1260         }
1261         if (! val)
1262                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1263
1264         if (ratesp) {
1265                 u32 rates = 0;
1266                 for (i = 0; rate_bits[i][0]; i++) {
1267                         if (val & (1 << i))
1268                                 rates |= rate_bits[i][1];
1269                 }
1270                 *ratesp = rates;
1271         }
1272
1273         if (formatsp || bpsp) {
1274                 u64 formats = 0;
1275                 unsigned int bps;
1276                 unsigned int wcaps;
1277
1278                 wcaps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
1279                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1280                 if (streams == -1)
1281                         return -EIO;
1282                 if (! streams) {
1283                         streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1284                         if (streams == -1)
1285                                 return -EIO;
1286                 }
1287
1288                 bps = 0;
1289                 if (streams & AC_SUPFMT_PCM) {
1290                         if (val & AC_SUPPCM_BITS_8) {
1291                                 formats |= SNDRV_PCM_FMTBIT_U8;
1292                                 bps = 8;
1293                         }
1294                         if (val & AC_SUPPCM_BITS_16) {
1295                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1296                                 bps = 16;
1297                         }
1298                         if (wcaps & AC_WCAP_DIGITAL) {
1299                                 if (val & AC_SUPPCM_BITS_32)
1300                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1301                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1302                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1303                                 if (val & AC_SUPPCM_BITS_24)
1304                                         bps = 24;
1305                                 else if (val & AC_SUPPCM_BITS_20)
1306                                         bps = 20;
1307                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1308                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1309                                 if (val & AC_SUPPCM_BITS_32)
1310                                         bps = 32;
1311                                 else if (val & AC_SUPPCM_BITS_20)
1312                                         bps = 20;
1313                                 else if (val & AC_SUPPCM_BITS_24)
1314                                         bps = 24;
1315                         }
1316                 }
1317                 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1318                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1319                         bps = 32;
1320                 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1321                         /* temporary hack: we have still no proper support
1322                          * for the direct AC3 stream...
1323                          */
1324                         formats |= SNDRV_PCM_FMTBIT_U8;
1325                         bps = 8;
1326                 }
1327                 if (formatsp)
1328                         *formatsp = formats;
1329                 if (bpsp)
1330                         *bpsp = bps;
1331         }
1332
1333         return 0;
1334 }
1335
1336 /**
1337  * snd_hda_is_supported_format - check whether the given node supports the format val
1338  *
1339  * Returns 1 if supported, 0 if not.
1340  */
1341 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1342                                 unsigned int format)
1343 {
1344         int i;
1345         unsigned int val = 0, rate, stream;
1346
1347         if (nid != codec->afg &&
1348             snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) & AC_WCAP_FORMAT_OVRD) {
1349                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1350                 if (val == -1)
1351                         return 0;
1352         }
1353         if (! val) {
1354                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1355                 if (val == -1)
1356                         return 0;
1357         }
1358
1359         rate = format & 0xff00;
1360         for (i = 0; rate_bits[i][0]; i++)
1361                 if (rate_bits[i][2] == rate) {
1362                         if (val & (1 << i))
1363                                 break;
1364                         return 0;
1365                 }
1366         if (! rate_bits[i][0])
1367                 return 0;
1368
1369         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1370         if (stream == -1)
1371                 return 0;
1372         if (! stream && nid != codec->afg)
1373                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1374         if (! stream || stream == -1)
1375                 return 0;
1376
1377         if (stream & AC_SUPFMT_PCM) {
1378                 switch (format & 0xf0) {
1379                 case 0x00:
1380                         if (! (val & AC_SUPPCM_BITS_8))
1381                                 return 0;
1382                         break;
1383                 case 0x10:
1384                         if (! (val & AC_SUPPCM_BITS_16))
1385                                 return 0;
1386                         break;
1387                 case 0x20:
1388                         if (! (val & AC_SUPPCM_BITS_20))
1389                                 return 0;
1390                         break;
1391                 case 0x30:
1392                         if (! (val & AC_SUPPCM_BITS_24))
1393                                 return 0;
1394                         break;
1395                 case 0x40:
1396                         if (! (val & AC_SUPPCM_BITS_32))
1397                                 return 0;
1398                         break;
1399                 default:
1400                         return 0;
1401                 }
1402         } else {
1403                 /* FIXME: check for float32 and AC3? */
1404         }
1405
1406         return 1;
1407 }
1408
1409 /*
1410  * PCM stuff
1411  */
1412 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1413                                       struct hda_codec *codec,
1414                                       snd_pcm_substream_t *substream)
1415 {
1416         return 0;
1417 }
1418
1419 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1420                                    struct hda_codec *codec,
1421                                    unsigned int stream_tag,
1422                                    unsigned int format,
1423                                    snd_pcm_substream_t *substream)
1424 {
1425         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1426         return 0;
1427 }
1428
1429 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1430                                    struct hda_codec *codec,
1431                                    snd_pcm_substream_t *substream)
1432 {
1433         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1434         return 0;
1435 }
1436
1437 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1438 {
1439         if (info->nid) {
1440                 /* query support PCM information from the given NID */
1441                 if (! info->rates || ! info->formats)
1442                         snd_hda_query_supported_pcm(codec, info->nid,
1443                                                     info->rates ? NULL : &info->rates,
1444                                                     info->formats ? NULL : &info->formats,
1445                                                     info->maxbps ? NULL : &info->maxbps);
1446         }
1447         if (info->ops.open == NULL)
1448                 info->ops.open = hda_pcm_default_open_close;
1449         if (info->ops.close == NULL)
1450                 info->ops.close = hda_pcm_default_open_close;
1451         if (info->ops.prepare == NULL) {
1452                 snd_assert(info->nid, return -EINVAL);
1453                 info->ops.prepare = hda_pcm_default_prepare;
1454         }
1455         if (info->ops.cleanup == NULL) {
1456                 snd_assert(info->nid, return -EINVAL);
1457                 info->ops.cleanup = hda_pcm_default_cleanup;
1458         }
1459         return 0;
1460 }
1461
1462 /**
1463  * snd_hda_build_pcms - build PCM information
1464  * @bus: the BUS
1465  *
1466  * Create PCM information for each codec included in the bus.
1467  *
1468  * The build_pcms codec patch is requested to set up codec->num_pcms and
1469  * codec->pcm_info properly.  The array is referred by the top-level driver
1470  * to create its PCM instances.
1471  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1472  * callback.
1473  *
1474  * At least, substreams, channels_min and channels_max must be filled for
1475  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1476  * When rates and/or formats are zero, the supported values are queried
1477  * from the given nid.  The nid is used also by the default ops.prepare
1478  * and ops.cleanup callbacks.
1479  *
1480  * The driver needs to call ops.open in its open callback.  Similarly,
1481  * ops.close is supposed to be called in the close callback.
1482  * ops.prepare should be called in the prepare or hw_params callback
1483  * with the proper parameters for set up.
1484  * ops.cleanup should be called in hw_free for clean up of streams.
1485  *
1486  * This function returns 0 if successfull, or a negative error code.
1487  */
1488 int snd_hda_build_pcms(struct hda_bus *bus)
1489 {
1490         struct list_head *p;
1491
1492         list_for_each(p, &bus->codec_list) {
1493                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1494                 unsigned int pcm, s;
1495                 int err;
1496                 if (! codec->patch_ops.build_pcms)
1497                         continue;
1498                 err = codec->patch_ops.build_pcms(codec);
1499                 if (err < 0)
1500                         return err;
1501                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1502                         for (s = 0; s < 2; s++) {
1503                                 struct hda_pcm_stream *info;
1504                                 info = &codec->pcm_info[pcm].stream[s];
1505                                 if (! info->substreams)
1506                                         continue;
1507                                 err = set_pcm_default_values(codec, info);
1508                                 if (err < 0)
1509                                         return err;
1510                         }
1511                 }
1512         }
1513         return 0;
1514 }
1515
1516
1517 /**
1518  * snd_hda_check_board_config - compare the current codec with the config table
1519  * @codec: the HDA codec
1520  * @tbl: configuration table, terminated by null entries
1521  *
1522  * Compares the modelname or PCI subsystem id of the current codec with the
1523  * given configuration table.  If a matching entry is found, returns its
1524  * config value (supposed to be 0 or positive).
1525  *
1526  * If no entries are matching, the function returns a negative value.
1527  */
1528 int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1529 {
1530         const struct hda_board_config *c;
1531
1532         if (codec->bus->modelname) {
1533                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1534                         if (c->modelname &&
1535                             ! strcmp(codec->bus->modelname, c->modelname)) {
1536                                 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1537                                 return c->config;
1538                         }
1539                 }
1540         }
1541
1542         if (codec->bus->pci) {
1543                 u16 subsystem_vendor, subsystem_device;
1544                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1545                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
1546                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1547                         if (c->pci_subvendor == subsystem_vendor &&
1548                             (! c->pci_subdevice /* all match */||
1549                              (c->pci_subdevice == subsystem_device))) {
1550                                 snd_printdd(KERN_INFO "hda_codec: PCI %x:%x, codec config %d is selected\n",
1551                                             subsystem_vendor, subsystem_device, c->config);
1552                                 return c->config;
1553                         }
1554                 }
1555         }
1556         return -1;
1557 }
1558
1559 /**
1560  * snd_hda_add_new_ctls - create controls from the array
1561  * @codec: the HDA codec
1562  * @knew: the array of snd_kcontrol_new_t
1563  *
1564  * This helper function creates and add new controls in the given array.
1565  * The array must be terminated with an empty entry as terminator.
1566  *
1567  * Returns 0 if successful, or a negative error code.
1568  */
1569 int snd_hda_add_new_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
1570 {
1571         int err;
1572
1573         for (; knew->name; knew++) {
1574                 err = snd_ctl_add(codec->bus->card, snd_ctl_new1(knew, codec));
1575                 if (err < 0)
1576                         return err;
1577         }
1578         return 0;
1579 }
1580
1581
1582 /*
1583  * input MUX helper
1584  */
1585 int snd_hda_input_mux_info(const struct hda_input_mux *imux, snd_ctl_elem_info_t *uinfo)
1586 {
1587         unsigned int index;
1588
1589         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1590         uinfo->count = 1;
1591         uinfo->value.enumerated.items = imux->num_items;
1592         index = uinfo->value.enumerated.item;
1593         if (index >= imux->num_items)
1594                 index = imux->num_items - 1;
1595         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1596         return 0;
1597 }
1598
1599 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1600                           snd_ctl_elem_value_t *ucontrol, hda_nid_t nid,
1601                           unsigned int *cur_val)
1602 {
1603         unsigned int idx;
1604
1605         idx = ucontrol->value.enumerated.item[0];
1606         if (idx >= imux->num_items)
1607                 idx = imux->num_items - 1;
1608         if (*cur_val == idx && ! codec->in_resume)
1609                 return 0;
1610         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1611                             imux->items[idx].index);
1612         *cur_val = idx;
1613         return 1;
1614 }
1615
1616
1617 /*
1618  * Multi-channel / digital-out PCM helper functions
1619  */
1620
1621 /*
1622  * open the digital out in the exclusive mode
1623  */
1624 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1625 {
1626         down(&codec->spdif_mutex);
1627         if (mout->dig_out_used) {
1628                 up(&codec->spdif_mutex);
1629                 return -EBUSY; /* already being used */
1630         }
1631         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1632         up(&codec->spdif_mutex);
1633         return 0;
1634 }
1635
1636 /*
1637  * release the digital out
1638  */
1639 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1640 {
1641         down(&codec->spdif_mutex);
1642         mout->dig_out_used = 0;
1643         up(&codec->spdif_mutex);
1644         return 0;
1645 }
1646
1647 /*
1648  * set up more restrictions for analog out
1649  */
1650 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1651                                   snd_pcm_substream_t *substream)
1652 {
1653         substream->runtime->hw.channels_max = mout->max_channels;
1654         return snd_pcm_hw_constraint_step(substream->runtime, 0,
1655                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1656 }
1657
1658 /*
1659  * set up the i/o for analog out
1660  * when the digital out is available, copy the front out to digital out, too.
1661  */
1662 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1663                                      unsigned int stream_tag,
1664                                      unsigned int format,
1665                                      snd_pcm_substream_t *substream)
1666 {
1667         hda_nid_t *nids = mout->dac_nids;
1668         int chs = substream->runtime->channels;
1669         int i;
1670
1671         down(&codec->spdif_mutex);
1672         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1673                 if (chs == 2 &&
1674                     snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1675                     ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1676                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1677                         /* setup digital receiver */
1678                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1679                                                    stream_tag, 0, format);
1680                 } else {
1681                         mout->dig_out_used = 0;
1682                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1683                 }
1684         }
1685         up(&codec->spdif_mutex);
1686
1687         /* front */
1688         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1689         if (mout->hp_nid)
1690                 /* headphone out will just decode front left/right (stereo) */
1691                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1692         /* surrounds */
1693         for (i = 1; i < mout->num_dacs; i++) {
1694                 if (chs >= (i + 1) * 2) /* independent out */
1695                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1696                                                    format);
1697                 else /* copy front */
1698                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1699                                                    format);
1700         }
1701         return 0;
1702 }
1703
1704 /*
1705  * clean up the setting for analog out
1706  */
1707 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1708 {
1709         hda_nid_t *nids = mout->dac_nids;
1710         int i;
1711
1712         for (i = 0; i < mout->num_dacs; i++)
1713                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1714         if (mout->hp_nid)
1715                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1716         down(&codec->spdif_mutex);
1717         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1718                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1719                 mout->dig_out_used = 0;
1720         }
1721         up(&codec->spdif_mutex);
1722         return 0;
1723 }
1724
1725 /*
1726  * Helper for automatic ping configuration
1727  */
1728 /* parse all pin widgets and store the useful pin nids to cfg */
1729 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg)
1730 {
1731         hda_nid_t nid, nid_start;
1732         int i, j, nodes;
1733         short seq, sequences[4], assoc_line_out;
1734
1735         memset(cfg, 0, sizeof(*cfg));
1736
1737         memset(sequences, 0, sizeof(sequences));
1738         assoc_line_out = 0;
1739
1740         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
1741         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1742                 unsigned int wid_caps = snd_hda_param_read(codec, nid,
1743                                                            AC_PAR_AUDIO_WIDGET_CAP);
1744                 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
1745                 unsigned int def_conf;
1746                 short assoc, loc;
1747
1748                 /* read all default configuration for pin complex */
1749                 if (wid_type != AC_WID_PIN)
1750                         continue;
1751                 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
1752                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
1753                         continue;
1754                 loc = get_defcfg_location(def_conf);
1755                 switch (get_defcfg_device(def_conf)) {
1756                 case AC_JACK_LINE_OUT:
1757                 case AC_JACK_SPEAKER:
1758                         seq = get_defcfg_sequence(def_conf);
1759                         assoc = get_defcfg_association(def_conf);
1760                         if (! assoc)
1761                                 continue;
1762                         if (! assoc_line_out)
1763                                 assoc_line_out = assoc;
1764                         else if (assoc_line_out != assoc)
1765                                 continue;
1766                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
1767                                 continue;
1768                         cfg->line_out_pins[cfg->line_outs] = nid;
1769                         sequences[cfg->line_outs] = seq;
1770                         cfg->line_outs++;
1771                         break;
1772                 case AC_JACK_HP_OUT:
1773                         cfg->hp_pin = nid;
1774                         break;
1775                 case AC_JACK_MIC_IN:
1776                         if (loc == AC_JACK_LOC_FRONT)
1777                                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = nid;
1778                         else
1779                                 cfg->input_pins[AUTO_PIN_MIC] = nid;
1780                         break;
1781                 case AC_JACK_LINE_IN:
1782                         if (loc == AC_JACK_LOC_FRONT)
1783                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
1784                         else
1785                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
1786                         break;
1787                 case AC_JACK_CD:
1788                         cfg->input_pins[AUTO_PIN_CD] = nid;
1789                         break;
1790                 case AC_JACK_AUX:
1791                         cfg->input_pins[AUTO_PIN_AUX] = nid;
1792                         break;
1793                 case AC_JACK_SPDIF_OUT:
1794                         cfg->dig_out_pin = nid;
1795                         break;
1796                 case AC_JACK_SPDIF_IN:
1797                         cfg->dig_in_pin = nid;
1798                         break;
1799                 }
1800         }
1801
1802         /* sort by sequence */
1803         for (i = 0; i < cfg->line_outs; i++)
1804                 for (j = i + 1; j < cfg->line_outs; j++)
1805                         if (sequences[i] > sequences[j]) {
1806                                 seq = sequences[i];
1807                                 sequences[i] = sequences[j];
1808                                 sequences[j] = seq;
1809                                 nid = cfg->line_out_pins[i];
1810                                 cfg->line_out_pins[i] = cfg->line_out_pins[j];
1811                                 cfg->line_out_pins[j] = nid;
1812                         }
1813
1814         /* Reorder the surround channels
1815          * ALSA sequence is front/surr/clfe/side
1816          * HDA sequence is:
1817          *    4-ch: front/surr  =>  OK as it is
1818          *    6-ch: front/clfe/surr
1819          *    8-ch: front/clfe/side/surr
1820          */
1821         switch (cfg->line_outs) {
1822         case 3:
1823                 nid = cfg->line_out_pins[1];
1824                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
1825                 cfg->line_out_pins[2] = nid;
1826                 break;
1827         case 4:
1828                 nid = cfg->line_out_pins[1];
1829                 cfg->line_out_pins[1] = cfg->line_out_pins[3];
1830                 cfg->line_out_pins[3] = cfg->line_out_pins[2];
1831                 cfg->line_out_pins[2] = nid;
1832                 break;
1833         }
1834
1835         return 0;
1836 }
1837
1838 #ifdef CONFIG_PM
1839 /*
1840  * power management
1841  */
1842
1843 /**
1844  * snd_hda_suspend - suspend the codecs
1845  * @bus: the HDA bus
1846  * @state: suspsend state
1847  *
1848  * Returns 0 if successful.
1849  */
1850 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
1851 {
1852         struct list_head *p;
1853
1854         /* FIXME: should handle power widget capabilities */
1855         list_for_each(p, &bus->codec_list) {
1856                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1857                 if (codec->patch_ops.suspend)
1858                         codec->patch_ops.suspend(codec, state);
1859         }
1860         return 0;
1861 }
1862
1863 /**
1864  * snd_hda_resume - resume the codecs
1865  * @bus: the HDA bus
1866  * @state: resume state
1867  *
1868  * Returns 0 if successful.
1869  */
1870 int snd_hda_resume(struct hda_bus *bus)
1871 {
1872         struct list_head *p;
1873
1874         list_for_each(p, &bus->codec_list) {
1875                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1876                 if (codec->patch_ops.resume)
1877                         codec->patch_ops.resume(codec);
1878         }
1879         return 0;
1880 }
1881
1882 /**
1883  * snd_hda_resume_ctls - resume controls in the new control list
1884  * @codec: the HDA codec
1885  * @knew: the array of snd_kcontrol_new_t
1886  *
1887  * This function resumes the mixer controls in the snd_kcontrol_new_t array,
1888  * originally for snd_hda_add_new_ctls().
1889  * The array must be terminated with an empty entry as terminator.
1890  */
1891 int snd_hda_resume_ctls(struct hda_codec *codec, snd_kcontrol_new_t *knew)
1892 {
1893         snd_ctl_elem_value_t *val;
1894
1895         val = kmalloc(sizeof(*val), GFP_KERNEL);
1896         if (! val)
1897                 return -ENOMEM;
1898         codec->in_resume = 1;
1899         for (; knew->name; knew++) {
1900                 int i, count;
1901                 count = knew->count ? knew->count : 1;
1902                 for (i = 0; i < count; i++) {
1903                         memset(val, 0, sizeof(*val));
1904                         val->id.iface = knew->iface;
1905                         val->id.device = knew->device;
1906                         val->id.subdevice = knew->subdevice;
1907                         strcpy(val->id.name, knew->name);
1908                         val->id.index = knew->index ? knew->index : i;
1909                         /* Assume that get callback reads only from cache,
1910                          * not accessing to the real hardware
1911                          */
1912                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
1913                                 continue;
1914                         snd_ctl_elem_write(codec->bus->card, NULL, val);
1915                 }
1916         }
1917         codec->in_resume = 0;
1918         kfree(val);
1919         return 0;
1920 }
1921
1922 /**
1923  * snd_hda_resume_spdif_out - resume the digital out
1924  * @codec: the HDA codec
1925  */
1926 int snd_hda_resume_spdif_out(struct hda_codec *codec)
1927 {
1928         return snd_hda_resume_ctls(codec, dig_mixes);
1929 }
1930
1931 /**
1932  * snd_hda_resume_spdif_in - resume the digital in
1933  * @codec: the HDA codec
1934  */
1935 int snd_hda_resume_spdif_in(struct hda_codec *codec)
1936 {
1937         return snd_hda_resume_ctls(codec, dig_in_ctls);
1938 }
1939 #endif
1940
1941 /*
1942  * symbols exported for controller modules
1943  */
1944 EXPORT_SYMBOL(snd_hda_codec_read);
1945 EXPORT_SYMBOL(snd_hda_codec_write);
1946 EXPORT_SYMBOL(snd_hda_sequence_write);
1947 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
1948 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
1949 EXPORT_SYMBOL(snd_hda_bus_new);
1950 EXPORT_SYMBOL(snd_hda_codec_new);
1951 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
1952 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1953 EXPORT_SYMBOL(snd_hda_build_pcms);
1954 EXPORT_SYMBOL(snd_hda_build_controls);
1955 #ifdef CONFIG_PM
1956 EXPORT_SYMBOL(snd_hda_suspend);
1957 EXPORT_SYMBOL(snd_hda_resume);
1958 #endif
1959
1960 /*
1961  *  INIT part
1962  */
1963
1964 static int __init alsa_hda_init(void)
1965 {
1966         return 0;
1967 }
1968
1969 static void __exit alsa_hda_exit(void)
1970 {
1971 }
1972
1973 module_init(alsa_hda_init)
1974 module_exit(alsa_hda_exit)