err.no 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 <linux/init.h>
  23 #include <linux/delay.h>
  24 #include <linux/slab.h>
  25 #include <linux/pci.h>
  26 #include <linux/mutex.h>
  27 #include <sound/core.h>
  28 #include "hda_codec.h"
  29 #include <sound/asoundef.h>
  30 #include <sound/tlv.h>
  31 #include <sound/initval.h>
  32 #include "hda_local.h"
  33 #include <sound/hda_hwdep.h>
  34
  35 #ifdef CONFIG_SND_HDA_POWER_SAVE
  36 /* define this option here to hide as static */
  37 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
  38 module_param(power_save, int, 0644);
  39 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
  40                  "(in second, 0 = disable).");
  41 #endif
  42
  43 /*
  44  * vendor / preset table
  45  */
  46
  47 struct hda_vendor_id {
  48         unsigned int id;
  49         const char *name;
  50 };
  51
  52 /* codec vendor labels */
  53 static struct hda_vendor_id hda_vendor_ids[] = {
  54         { 0x10ec, "Realtek" },
  55         { 0x1057, "Motorola" },
  56         { 0x1106, "VIA" },
  57         { 0x111d, "IDT" },
  58         { 0x11d4, "Analog Devices" },
  59         { 0x13f6, "C-Media" },
  60         { 0x14f1, "Conexant" },
  61         { 0x434d, "C-Media" },
  62         { 0x8384, "SigmaTel" },
  63         {} /* terminator */
  64 };
  65
  66 /* codec presets */
  67 #include "hda_patch.h"
  68
  69
  70 #ifdef CONFIG_SND_HDA_POWER_SAVE
  71 static void hda_power_work(struct work_struct *work);
  72 static void hda_keep_power_on(struct hda_codec *codec);
  73 #else
  74 static inline void hda_keep_power_on(struct hda_codec *codec) {}
  75 #endif
  76
  77 /**
  78  * snd_hda_codec_read - send a command and get the response
  79  * @codec: the HDA codec
  80  * @nid: NID to send the command
  81  * @direct: direct flag
  82  * @verb: the verb to send
  83  * @parm: the parameter for the verb
  84  *
  85  * Send a single command and read the corresponding response.
  86  *
  87  * Returns the obtained response value, or -1 for an error.
  88  */
  89 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
  90                                 int direct,
  91                                 unsigned int verb, unsigned int parm)
  92 {
  93         unsigned int res;
  94         snd_hda_power_up(codec);
  95         mutex_lock(&codec->bus->cmd_mutex);
  96         if (!codec->bus->ops.command(codec, nid, direct, verb, parm))
  97                 res = codec->bus->ops.get_response(codec);
  98         else
  99                 res = (unsigned int)-1;
 100         mutex_unlock(&codec->bus->cmd_mutex);
 101         snd_hda_power_down(codec);
 102         return res;
 103 }
 104
 105 /**
 106  * snd_hda_codec_write - send a single command without waiting for response
 107  * @codec: the HDA codec
 108  * @nid: NID to send the command
 109  * @direct: direct flag
 110  * @verb: the verb to send
 111  * @parm: the parameter for the verb
 112  *
 113  * Send a single command without waiting for response.
 114  *
 115  * Returns 0 if successful, or a negative error code.
 116  */
 117 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 118                          unsigned int verb, unsigned int parm)
 119 {
 120         int err;
 121         snd_hda_power_up(codec);
 122         mutex_lock(&codec->bus->cmd_mutex);
 123         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
 124         mutex_unlock(&codec->bus->cmd_mutex);
 125         snd_hda_power_down(codec);
 126         return err;
 127 }
 128
 129 /**
 130  * snd_hda_sequence_write - sequence writes
 131  * @codec: the HDA codec
 132  * @seq: VERB array to send
 133  *
 134  * Send the commands sequentially from the given array.
 135  * The array must be terminated with NID=0.
 136  */
 137 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 138 {
 139         for (; seq->nid; seq++)
 140                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 141 }
 142
 143 /**
 144  * snd_hda_get_sub_nodes - get the range of sub nodes
 145  * @codec: the HDA codec
 146  * @nid: NID to parse
 147  * @start_id: the pointer to store the start NID
 148  *
 149  * Parse the NID and store the start NID of its sub-nodes.
 150  * Returns the number of sub-nodes.
 151  */
 152 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 153                           hda_nid_t *start_id)
 154 {
 155         unsigned int parm;
 156
 157         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
 158         if (parm == -1)
 159                 return 0;
 160         *start_id = (parm >> 16) & 0x7fff;
 161         return (int)(parm & 0x7fff);
 162 }
 163
 164 /**
 165  * snd_hda_get_connections - get connection list
 166  * @codec: the HDA codec
 167  * @nid: NID to parse
 168  * @conn_list: connection list array
 169  * @max_conns: max. number of connections to store
 170  *
 171  * Parses the connection list of the given widget and stores the list
 172  * of NIDs.
 173  *
 174  * Returns the number of connections, or a negative error code.
 175  */
 176 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 177                             hda_nid_t *conn_list, int max_conns)
 178 {
 179         unsigned int parm;
 180         int i, conn_len, conns;
 181         unsigned int shift, num_elems, mask;
 182         hda_nid_t prev_nid;
 183
 184         snd_assert(conn_list && max_conns > 0, return -EINVAL);
 185
 186         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 187         if (parm & AC_CLIST_LONG) {
 188                 /* long form */
 189                 shift = 16;
 190                 num_elems = 2;
 191         } else {
 192                 /* short form */
 193                 shift = 8;
 194                 num_elems = 4;
 195         }
 196         conn_len = parm & AC_CLIST_LENGTH;
 197         mask = (1 << (shift-1)) - 1;
 198
 199         if (!conn_len)
 200                 return 0; /* no connection */
 201
 202         if (conn_len == 1) {
 203                 /* single connection */
 204                 parm = snd_hda_codec_read(codec, nid, 0,
 205                                           AC_VERB_GET_CONNECT_LIST, 0);
 206                 conn_list[0] = parm & mask;
 207                 return 1;
 208         }
 209
 210         /* multi connection */
 211         conns = 0;
 212         prev_nid = 0;
 213         for (i = 0; i < conn_len; i++) {
 214                 int range_val;
 215                 hda_nid_t val, n;
 216
 217                 if (i % num_elems == 0)
 218                         parm = snd_hda_codec_read(codec, nid, 0,
 219                                                   AC_VERB_GET_CONNECT_LIST, i);
 220                 range_val = !!(parm & (1 << (shift-1))); /* ranges */
 221                 val = parm & mask;
 222                 parm >>= shift;
 223                 if (range_val) {
 224                         /* ranges between the previous and this one */
 225                         if (!prev_nid || prev_nid >= val) {
 226                                 snd_printk(KERN_WARNING "hda_codec: "
 227                                            "invalid dep_range_val %x:%x\n",
 228                                            prev_nid, val);
 229                                 continue;
 230                         }
 231                         for (n = prev_nid + 1; n <= val; n++) {
 232                                 if (conns >= max_conns) {
 233                                         snd_printk(KERN_ERR
 234                                                    "Too many connections\n");
 235                                         return -EINVAL;
 236                                 }
 237                                 conn_list[conns++] = n;
 238                         }
 239                 } else {
 240                         if (conns >= max_conns) {
 241                                 snd_printk(KERN_ERR "Too many connections\n");
 242                                 return -EINVAL;
 243                         }
 244                         conn_list[conns++] = val;
 245                 }
 246                 prev_nid = val;
 247         }
 248         return conns;
 249 }
 250
 251
 252 /**
 253  * snd_hda_queue_unsol_event - add an unsolicited event to queue
 254  * @bus: the BUS
 255  * @res: unsolicited event (lower 32bit of RIRB entry)
 256  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
 257  *
 258  * Adds the given event to the queue.  The events are processed in
 259  * the workqueue asynchronously.  Call this function in the interrupt
 260  * hanlder when RIRB receives an unsolicited event.
 261  *
 262  * Returns 0 if successful, or a negative error code.
 263  */
 264 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 265 {
 266         struct hda_bus_unsolicited *unsol;
 267         unsigned int wp;
 268
 269         unsol = bus->unsol;
 270         if (!unsol)
 271                 return 0;
 272
 273         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
 274         unsol->wp = wp;
 275
 276         wp <<= 1;
 277         unsol->queue[wp] = res;
 278         unsol->queue[wp + 1] = res_ex;
 279
 280         schedule_work(&unsol->work);
 281
 282         return 0;
 283 }
 284
 285 /*
 286  * process queueud unsolicited events
 287  */
 288 static void process_unsol_events(struct work_struct *work)
 289 {
 290         struct hda_bus_unsolicited *unsol =
 291                 container_of(work, struct hda_bus_unsolicited, work);
 292         struct hda_bus *bus = unsol->bus;
 293         struct hda_codec *codec;
 294         unsigned int rp, caddr, res;
 295
 296         while (unsol->rp != unsol->wp) {
 297                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
 298                 unsol->rp = rp;
 299                 rp <<= 1;
 300                 res = unsol->queue[rp];
 301                 caddr = unsol->queue[rp + 1];
 302                 if (!(caddr & (1 << 4))) /* no unsolicited event? */
 303                         continue;
 304                 codec = bus->caddr_tbl[caddr & 0x0f];
 305                 if (codec && codec->patch_ops.unsol_event)
 306                         codec->patch_ops.unsol_event(codec, res);
 307         }
 308 }
 309
 310 /*
 311  * initialize unsolicited queue
 312  */
 313 static int __devinit init_unsol_queue(struct hda_bus *bus)
 314 {
 315         struct hda_bus_unsolicited *unsol;
 316
 317         if (bus->unsol) /* already initialized */
 318                 return 0;
 319
 320         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
 321         if (!unsol) {
 322                 snd_printk(KERN_ERR "hda_codec: "
 323                            "can't allocate unsolicited queue\n");
 324                 return -ENOMEM;
 325         }
 326         INIT_WORK(&unsol->work, process_unsol_events);
 327         unsol->bus = bus;
 328         bus->unsol = unsol;
 329         return 0;
 330 }
 331
 332 /*
 333  * destructor
 334  */
 335 static void snd_hda_codec_free(struct hda_codec *codec);
 336
 337 static int snd_hda_bus_free(struct hda_bus *bus)
 338 {
 339         struct hda_codec *codec, *n;
 340
 341         if (!bus)
 342                 return 0;
 343         if (bus->unsol) {
 344                 flush_scheduled_work();
 345                 kfree(bus->unsol);
 346         }
 347         list_for_each_entry_safe(codec, n, &bus->codec_list, list) {
 348                 snd_hda_codec_free(codec);
 349         }
 350         if (bus->ops.private_free)
 351                 bus->ops.private_free(bus);
 352         kfree(bus);
 353         return 0;
 354 }
 355
 356 static int snd_hda_bus_dev_free(struct snd_device *device)
 357 {
 358         struct hda_bus *bus = device->device_data;
 359         return snd_hda_bus_free(bus);
 360 }
 361
 362 /**
 363  * snd_hda_bus_new - create a HDA bus
 364  * @card: the card entry
 365  * @temp: the template for hda_bus information
 366  * @busp: the pointer to store the created bus instance
 367  *
 368  * Returns 0 if successful, or a negative error code.
 369  */
 370 int __devinit snd_hda_bus_new(struct snd_card *card,
 371                               const struct hda_bus_template *temp,
 372                               struct hda_bus **busp)
 373 {
 374         struct hda_bus *bus;
 375         int err;
 376         static struct snd_device_ops dev_ops = {
 377                 .dev_free = snd_hda_bus_dev_free,
 378         };
 379
 380         snd_assert(temp, return -EINVAL);
 381         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
 382
 383         if (busp)
 384                 *busp = NULL;
 385
 386         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 387         if (bus == NULL) {
 388                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 389                 return -ENOMEM;
 390         }
 391
 392         bus->card = card;
 393         bus->private_data = temp->private_data;
 394         bus->pci = temp->pci;
 395         bus->modelname = temp->modelname;
 396         bus->ops = temp->ops;
 397
 398         mutex_init(&bus->cmd_mutex);
 399         INIT_LIST_HEAD(&bus->codec_list);
 400
 401         err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
 402         if (err < 0) {
 403                 snd_hda_bus_free(bus);
 404                 return err;
 405         }
 406         if (busp)
 407                 *busp = bus;
 408         return 0;
 409 }
 410
 411 #ifdef CONFIG_SND_HDA_GENERIC
 412 #define is_generic_config(codec) \
 413         (codec->bus->modelname && !strcmp(codec->bus->modelname, "generic"))
 414 #else
 415 #define is_generic_config(codec)        0
 416 #endif
 417
 418 /*
 419  * find a matching codec preset
 420  */
 421 static const struct hda_codec_preset __devinit *
 422 find_codec_preset(struct hda_codec *codec)
 423 {
 424         const struct hda_codec_preset **tbl, *preset;
 425
 426         if (is_generic_config(codec))
 427                 return NULL; /* use the generic parser */
 428
 429         for (tbl = hda_preset_tables; *tbl; tbl++) {
 430                 for (preset = *tbl; preset->id; preset++) {
 431                         u32 mask = preset->mask;
 432                         if (preset->afg && preset->afg != codec->afg)
 433                                 continue;
 434                         if (preset->mfg && preset->mfg != codec->mfg)
 435                                 continue;
 436                         if (!mask)
 437                                 mask = ~0;
 438                         if (preset->id == (codec->vendor_id & mask) &&
 439                             (!preset->rev ||
 440                              preset->rev == codec->revision_id))
 441                                 return preset;
 442                 }
 443         }
 444         return NULL;
 445 }
 446
 447 /*
 448  * snd_hda_get_codec_name - store the codec name
 449  */
 450 void snd_hda_get_codec_name(struct hda_codec *codec,
 451                             char *name, int namelen)
 452 {
 453         const struct hda_vendor_id *c;
 454         const char *vendor = NULL;
 455         u16 vendor_id = codec->vendor_id >> 16;
 456         char tmp[16];
 457
 458         for (c = hda_vendor_ids; c->id; c++) {
 459                 if (c->id == vendor_id) {
 460                         vendor = c->name;
 461                         break;
 462                 }
 463         }
 464         if (!vendor) {
 465                 sprintf(tmp, "Generic %04x", vendor_id);
 466                 vendor = tmp;
 467         }
 468         if (codec->preset && codec->preset->name)
 469                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 470         else
 471                 snprintf(name, namelen, "%s ID %x", vendor,
 472                          codec->vendor_id & 0xffff);
 473 }
 474
 475 /*
 476  * look for an AFG and MFG nodes
 477  */
 478 static void __devinit setup_fg_nodes(struct hda_codec *codec)
 479 {
 480         int i, total_nodes;
 481         hda_nid_t nid;
 482
 483         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 484         for (i = 0; i < total_nodes; i++, nid++) {
 485                 unsigned int func;
 486                 func = snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE);
 487                 switch (func & 0xff) {
 488                 case AC_GRP_AUDIO_FUNCTION:
 489                         codec->afg = nid;
 490                         break;
 491                 case AC_GRP_MODEM_FUNCTION:
 492                         codec->mfg = nid;
 493                         break;
 494                 default:
 495                         break;
 496                 }
 497         }
 498 }
 499
 500 /*
 501  * read widget caps for each widget and store in cache
 502  */
 503 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 504 {
 505         int i;
 506         hda_nid_t nid;
 507
 508         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 509                                                  &codec->start_nid);
 510         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 511         if (!codec->wcaps)
 512                 return -ENOMEM;
 513         nid = codec->start_nid;
 514         for (i = 0; i < codec->num_nodes; i++, nid++)
 515                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 516                                                      AC_PAR_AUDIO_WIDGET_CAP);
 517         return 0;
 518 }
 519
 520
 521 static void init_hda_cache(struct hda_cache_rec *cache,
 522                            unsigned int record_size);
 523 static void free_hda_cache(struct hda_cache_rec *cache);
 524
 525 /*
 526  * codec destructor
 527  */
 528 static void snd_hda_codec_free(struct hda_codec *codec)
 529 {
 530         if (!codec)
 531                 return;
 532 #ifdef CONFIG_SND_HDA_POWER_SAVE
 533         cancel_delayed_work(&codec->power_work);
 534         flush_scheduled_work();
 535 #endif
 536         list_del(&codec->list);
 537         codec->bus->caddr_tbl[codec->addr] = NULL;
 538         if (codec->patch_ops.free)
 539                 codec->patch_ops.free(codec);
 540         free_hda_cache(&codec->amp_cache);
 541         free_hda_cache(&codec->cmd_cache);
 542         kfree(codec->wcaps);
 543         kfree(codec);
 544 }
 545
 546 /**
 547  * snd_hda_codec_new - create a HDA codec
 548  * @bus: the bus to assign
 549  * @codec_addr: the codec address
 550  * @codecp: the pointer to store the generated codec
 551  *
 552  * Returns 0 if successful, or a negative error code.
 553  */
 554 int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 555                                 struct hda_codec **codecp)
 556 {
 557         struct hda_codec *codec;
 558         char component[13];
 559         int err;
 560
 561         snd_assert(bus, return -EINVAL);
 562         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 563
 564         if (bus->caddr_tbl[codec_addr]) {
 565                 snd_printk(KERN_ERR "hda_codec: "
 566                            "address 0x%x is already occupied\n", codec_addr);
 567                 return -EBUSY;
 568         }
 569
 570         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 571         if (codec == NULL) {
 572                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 573                 return -ENOMEM;
 574         }
 575
 576         codec->bus = bus;
 577         codec->addr = codec_addr;
 578         mutex_init(&codec->spdif_mutex);
 579         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
 580         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
 581
 582 #ifdef CONFIG_SND_HDA_POWER_SAVE
 583         INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
 584         /* snd_hda_codec_new() marks the codec as power-up, and leave it as is.
 585          * the caller has to power down appropriatley after initialization
 586          * phase.
 587          */
 588         hda_keep_power_on(codec);
 589 #endif
 590
 591         list_add_tail(&codec->list, &bus->codec_list);
 592         bus->caddr_tbl[codec_addr] = codec;
 593
 594         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 595                                               AC_PAR_VENDOR_ID);
 596         if (codec->vendor_id == -1)
 597                 /* read again, hopefully the access method was corrected
 598                  * in the last read...
 599                  */
 600                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 601                                                       AC_PAR_VENDOR_ID);
 602         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 603                                                  AC_PAR_SUBSYSTEM_ID);
 604         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 605                                                 AC_PAR_REV_ID);
 606
 607         setup_fg_nodes(codec);
 608         if (!codec->afg && !codec->mfg) {
 609                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 610                 snd_hda_codec_free(codec);
 611                 return -ENODEV;
 612         }
 613
 614         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 615                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 616                 snd_hda_codec_free(codec);
 617                 return -ENOMEM;
 618         }
 619
 620         if (!codec->subsystem_id) {
 621                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 622                 codec->subsystem_id =
 623                         snd_hda_codec_read(codec, nid, 0,
 624                                            AC_VERB_GET_SUBSYSTEM_ID, 0);
 625         }
 626
 627         codec->preset = find_codec_preset(codec);
 628         /* audio codec should override the mixer name */
 629         if (codec->afg || !*bus->card->mixername)
 630                 snd_hda_get_codec_name(codec, bus->card->mixername,
 631                                        sizeof(bus->card->mixername));
 632
 633         if (is_generic_config(codec)) {
 634                 err = snd_hda_parse_generic_codec(codec);
 635                 goto patched;
 636         }
 637         if (codec->preset && codec->preset->patch) {
 638                 err = codec->preset->patch(codec);
 639                 goto patched;
 640         }
 641
 642         /* call the default parser */
 643         err = snd_hda_parse_generic_codec(codec);
 644         if (err < 0)
 645                 printk(KERN_ERR "hda-codec: No codec parser is available\n");
 646
 647  patched:
 648         if (err < 0) {
 649                 snd_hda_codec_free(codec);
 650                 return err;
 651         }
 652
 653         if (codec->patch_ops.unsol_event)
 654                 init_unsol_queue(bus);
 655
 656         snd_hda_codec_proc_new(codec);
 657 #ifdef CONFIG_SND_HDA_HWDEP
 658         snd_hda_create_hwdep(codec);
 659 #endif
 660
 661         sprintf(component, "HDA:%08x", codec->vendor_id);
 662         snd_component_add(codec->bus->card, component);
 663
 664         if (codecp)
 665                 *codecp = codec;
 666         return 0;
 667 }
 668
 669 /**
 670  * snd_hda_codec_setup_stream - set up the codec for streaming
 671  * @codec: the CODEC to set up
 672  * @nid: the NID to set up
 673  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 674  * @channel_id: channel id to pass, zero based.
 675  * @format: stream format.
 676  */
 677 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 678                                 u32 stream_tag,
 679                                 int channel_id, int format)
 680 {
 681         if (!nid)
 682                 return;
 683
 684         snd_printdd("hda_codec_setup_stream: "
 685                     "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 686                     nid, stream_tag, channel_id, format);
 687         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 688                             (stream_tag << 4) | channel_id);
 689         msleep(1);
 690         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 691 }
 692
 693 /*
 694  * amp access functions
 695  */
 696
 697 /* FIXME: more better hash key? */
 698 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 699 #define INFO_AMP_CAPS   (1<<0)
 700 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 701
 702 /* initialize the hash table */
 703 static void __devinit init_hda_cache(struct hda_cache_rec *cache,
 704                                      unsigned int record_size)
 705 {
 706         memset(cache, 0, sizeof(*cache));
 707         memset(cache->hash, 0xff, sizeof(cache->hash));
 708         cache->record_size = record_size;
 709 }
 710
 711 static void free_hda_cache(struct hda_cache_rec *cache)
 712 {
 713         kfree(cache->buffer);
 714 }
 715
 716 /* query the hash.  allocate an entry if not found. */
 717 static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
 718                                               u32 key)
 719 {
 720         u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
 721         u16 cur = cache->hash[idx];
 722         struct hda_cache_head *info;
 723
 724         while (cur != 0xffff) {
 725                 info = (struct hda_cache_head *)(cache->buffer +
 726                                                  cur * cache->record_size);
 727                 if (info->key == key)
 728                         return info;
 729                 cur = info->next;
 730         }
 731
 732         /* add a new hash entry */
 733         if (cache->num_entries >= cache->size) {
 734                 /* reallocate the array */
 735                 unsigned int new_size = cache->size + 64;
 736                 void *new_buffer;
 737                 new_buffer = kcalloc(new_size, cache->record_size, GFP_KERNEL);
 738                 if (!new_buffer) {
 739                         snd_printk(KERN_ERR "hda_codec: "
 740                                    "can't malloc amp_info\n");
 741                         return NULL;
 742                 }
 743                 if (cache->buffer) {
 744                         memcpy(new_buffer, cache->buffer,
 745                                cache->size * cache->record_size);
 746                         kfree(cache->buffer);
 747                 }
 748                 cache->size = new_size;
 749                 cache->buffer = new_buffer;
 750         }
 751         cur = cache->num_entries++;
 752         info = (struct hda_cache_head *)(cache->buffer +
 753                                          cur * cache->record_size);
 754         info->key = key;
 755         info->val = 0;
 756         info->next = cache->hash[idx];
 757         cache->hash[idx] = cur;
 758
 759         return info;
 760 }
 761
 762 /* query and allocate an amp hash entry */
 763 static inline struct hda_amp_info *
 764 get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 765 {
 766         return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
 767 }
 768
 769 /*
 770  * query AMP capabilities for the given widget and direction
 771  */
 772 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 773 {
 774         struct hda_amp_info *info;
 775
 776         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 777         if (!info)
 778                 return 0;
 779         if (!(info->head.val & INFO_AMP_CAPS)) {
 780                 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 781                         nid = codec->afg;
 782                 info->amp_caps = snd_hda_param_read(codec, nid,
 783                                                     direction == HDA_OUTPUT ?
 784                                                     AC_PAR_AMP_OUT_CAP :
 785                                                     AC_PAR_AMP_IN_CAP);
 786                 if (info->amp_caps)
 787                         info->head.val |= INFO_AMP_CAPS;
 788         }
 789         return info->amp_caps;
 790 }
 791
 792 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 793                               unsigned int caps)
 794 {
 795         struct hda_amp_info *info;
 796
 797         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0));
 798         if (!info)
 799                 return -EINVAL;
 800         info->amp_caps = caps;
 801         info->head.val |= INFO_AMP_CAPS;
 802         return 0;
 803 }
 804
 805 /*
 806  * read the current volume to info
 807  * if the cache exists, read the cache value.
 808  */
 809 static unsigned int get_vol_mute(struct hda_codec *codec,
 810                                  struct hda_amp_info *info, hda_nid_t nid,
 811                                  int ch, int direction, int index)
 812 {
 813         u32 val, parm;
 814
 815         if (info->head.val & INFO_AMP_VOL(ch))
 816                 return info->vol[ch];
 817
 818         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 819         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 820         parm |= index;
 821         val = snd_hda_codec_read(codec, nid, 0,
 822                                  AC_VERB_GET_AMP_GAIN_MUTE, parm);
 823         info->vol[ch] = val & 0xff;
 824         info->head.val |= INFO_AMP_VOL(ch);
 825         return info->vol[ch];
 826 }
 827
 828 /*
 829  * write the current volume in info to the h/w and update the cache
 830  */
 831 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 832                          hda_nid_t nid, int ch, int direction, int index,
 833                          int val)
 834 {
 835         u32 parm;
 836
 837         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
 838         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
 839         parm |= index << AC_AMP_SET_INDEX_SHIFT;
 840         parm |= val;
 841         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
 842         info->vol[ch] = val;
 843 }
 844
 845 /*
 846  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 847  */
 848 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 849                            int direction, int index)
 850 {
 851         struct hda_amp_info *info;
 852         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
 853         if (!info)
 854                 return 0;
 855         return get_vol_mute(codec, info, nid, ch, direction, index);
 856 }
 857
 858 /*
 859  * update the AMP value, mask = bit mask to set, val = the value
 860  */
 861 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 862                              int direction, int idx, int mask, int val)
 863 {
 864         struct hda_amp_info *info;
 865
 866         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
 867         if (!info)
 868                 return 0;
 869         val &= mask;
 870         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
 871         if (info->vol[ch] == val)
 872                 return 0;
 873         put_vol_mute(codec, info, nid, ch, direction, idx, val);
 874         return 1;
 875 }
 876
 877 /*
 878  * update the AMP stereo with the same mask and value
 879  */
 880 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
 881                              int direction, int idx, int mask, int val)
 882 {
 883         int ch, ret = 0;
 884         for (ch = 0; ch < 2; ch++)
 885                 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
 886                                                 idx, mask, val);
 887         return ret;
 888 }
 889
 890 #ifdef SND_HDA_NEEDS_RESUME
 891 /* resume the all amp commands from the cache */
 892 void snd_hda_codec_resume_amp(struct hda_codec *codec)
 893 {
 894         struct hda_amp_info *buffer = codec->amp_cache.buffer;
 895         int i;
 896
 897         for (i = 0; i < codec->amp_cache.size; i++, buffer++) {
 898                 u32 key = buffer->head.key;
 899                 hda_nid_t nid;
 900                 unsigned int idx, dir, ch;
 901                 if (!key)
 902                         continue;
 903                 nid = key & 0xff;
 904                 idx = (key >> 16) & 0xff;
 905                 dir = (key >> 24) & 0xff;
 906                 for (ch = 0; ch < 2; ch++) {
 907                         if (!(buffer->head.val & INFO_AMP_VOL(ch)))
 908                                 continue;
 909                         put_vol_mute(codec, buffer, nid, ch, dir, idx,
 910                                      buffer->vol[ch]);
 911                 }
 912         }
 913 }
 914 #endif /* SND_HDA_NEEDS_RESUME */
 915
 916 /*
 917  * AMP control callbacks
 918  */
 919 /* retrieve parameters from private_value */
 920 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 921 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 922 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 923 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 924
 925 /* volume */
 926 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
 927                                   struct snd_ctl_elem_info *uinfo)
 928 {
 929         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 930         u16 nid = get_amp_nid(kcontrol);
 931         u8 chs = get_amp_channels(kcontrol);
 932         int dir = get_amp_direction(kcontrol);
 933         u32 caps;
 934
 935         caps = query_amp_caps(codec, nid, dir);
 936         /* num steps */
 937         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
 938         if (!caps) {
 939                 printk(KERN_WARNING "hda_codec: "
 940                        "num_steps = 0 for NID=0x%x (ctl = %s)\n", nid,
 941                        kcontrol->id.name);
 942                 return -EINVAL;
 943         }
 944         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 945         uinfo->count = chs == 3 ? 2 : 1;
 946         uinfo->value.integer.min = 0;
 947         uinfo->value.integer.max = caps;
 948         return 0;
 949 }
 950
 951 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
 952                                  struct snd_ctl_elem_value *ucontrol)
 953 {
 954         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 955         hda_nid_t nid = get_amp_nid(kcontrol);
 956         int chs = get_amp_channels(kcontrol);
 957         int dir = get_amp_direction(kcontrol);
 958         int idx = get_amp_index(kcontrol);
 959         long *valp = ucontrol->value.integer.value;
 960
 961         if (chs & 1)
 962                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx)
 963                         & HDA_AMP_VOLMASK;
 964         if (chs & 2)
 965                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx)
 966                         & HDA_AMP_VOLMASK;
 967         return 0;
 968 }
 969
 970 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
 971                                  struct snd_ctl_elem_value *ucontrol)
 972 {
 973         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 974         hda_nid_t nid = get_amp_nid(kcontrol);
 975         int chs = get_amp_channels(kcontrol);
 976         int dir = get_amp_direction(kcontrol);
 977         int idx = get_amp_index(kcontrol);
 978         long *valp = ucontrol->value.integer.value;
 979         int change = 0;
 980
 981         snd_hda_power_up(codec);
 982         if (chs & 1) {
 983                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 984                                                   0x7f, *valp);
 985                 valp++;
 986         }
 987         if (chs & 2)
 988                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 989                                                    0x7f, *valp);
 990         snd_hda_power_down(codec);
 991         return change;
 992 }
 993
 994 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 995                           unsigned int size, unsigned int __user *_tlv)
 996 {
 997         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 998         hda_nid_t nid = get_amp_nid(kcontrol);
 999         int dir = get_amp_direction(kcontrol);
1000         u32 caps, val1, val2;
1001
1002         if (size < 4 * sizeof(unsigned int))
1003                 return -ENOMEM;
1004         caps = query_amp_caps(codec, nid, dir);
1005         val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1006         val2 = (val2 + 1) * 25;
1007         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1008         val1 = ((int)val1) * ((int)val2);
1009         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
1010                 return -EFAULT;
1011         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
1012                 return -EFAULT;
1013         if (put_user(val1, _tlv + 2))
1014                 return -EFAULT;
1015         if (put_user(val2, _tlv + 3))
1016                 return -EFAULT;
1017         return 0;
1018 }
1019
1020 /*
1021  * set (static) TLV for virtual master volume; recalculated as max 0dB
1022  */
1023 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1024                              unsigned int *tlv)
1025 {
1026         u32 caps;
1027         int nums, step;
1028
1029         caps = query_amp_caps(codec, nid, dir);
1030         nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1031         step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1032         step = (step + 1) * 25;
1033         tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
1034         tlv[1] = 2 * sizeof(unsigned int);
1035         tlv[2] = -nums * step;
1036         tlv[3] = step;
1037 }
1038
1039 /* find a mixer control element with the given name */
1040 static struct snd_kcontrol *
1041 _snd_hda_find_mixer_ctl(struct hda_codec *codec,
1042                         const char *name, int idx)
1043 {
1044         struct snd_ctl_elem_id id;
1045         memset(&id, 0, sizeof(id));
1046         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1047         id.index = idx;
1048         strcpy(id.name, name);
1049         return snd_ctl_find_id(codec->bus->card, &id);
1050 }
1051
1052 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1053                                             const char *name)
1054 {
1055         return _snd_hda_find_mixer_ctl(codec, name, 0);
1056 }
1057
1058 /* create a virtual master control and add slaves */
1059 int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1060                         unsigned int *tlv, const char **slaves)
1061 {
1062         struct snd_kcontrol *kctl;
1063         const char **s;
1064         int err;
1065
1066         for (s = slaves; *s && !snd_hda_find_mixer_ctl(codec, *s); s++)
1067                 ;
1068         if (!*s) {
1069                 snd_printdd("No slave found for %s\n", name);
1070                 return 0;
1071         }
1072         kctl = snd_ctl_make_virtual_master(name, tlv);
1073         if (!kctl)
1074                 return -ENOMEM;
1075         err = snd_ctl_add(codec->bus->card, kctl);
1076         if (err < 0)
1077                 return err;
1078
1079         for (s = slaves; *s; s++) {
1080                 struct snd_kcontrol *sctl;
1081
1082                 sctl = snd_hda_find_mixer_ctl(codec, *s);
1083                 if (!sctl) {
1084                         snd_printdd("Cannot find slave %s, skipped\n", *s);
1085                         continue;
1086                 }
1087                 err = snd_ctl_add_slave(kctl, sctl);
1088                 if (err < 0)
1089                         return err;
1090         }
1091         return 0;
1092 }
1093
1094 /* switch */
1095 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
1096                                   struct snd_ctl_elem_info *uinfo)
1097 {
1098         int chs = get_amp_channels(kcontrol);
1099
1100         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1101         uinfo->count = chs == 3 ? 2 : 1;
1102         uinfo->value.integer.min = 0;
1103         uinfo->value.integer.max = 1;
1104         return 0;
1105 }
1106
1107 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
1108                                  struct snd_ctl_elem_value *ucontrol)
1109 {
1110         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1111         hda_nid_t nid = get_amp_nid(kcontrol);
1112         int chs = get_amp_channels(kcontrol);
1113         int dir = get_amp_direction(kcontrol);
1114         int idx = get_amp_index(kcontrol);
1115         long *valp = ucontrol->value.integer.value;
1116
1117         if (chs & 1)
1118                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
1119                            HDA_AMP_MUTE) ? 0 : 1;
1120         if (chs & 2)
1121                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
1122                          HDA_AMP_MUTE) ? 0 : 1;
1123         return 0;
1124 }
1125
1126 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
1127                                  struct snd_ctl_elem_value *ucontrol)
1128 {
1129         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1130         hda_nid_t nid = get_amp_nid(kcontrol);
1131         int chs = get_amp_channels(kcontrol);
1132         int dir = get_amp_direction(kcontrol);
1133         int idx = get_amp_index(kcontrol);
1134         long *valp = ucontrol->value.integer.value;
1135         int change = 0;
1136
1137         snd_hda_power_up(codec);
1138         if (chs & 1) {
1139                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1140                                                   HDA_AMP_MUTE,
1141                                                   *valp ? 0 : HDA_AMP_MUTE);
1142                 valp++;
1143         }
1144         if (chs & 2)
1145                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1146                                                    HDA_AMP_MUTE,
1147                                                    *valp ? 0 : HDA_AMP_MUTE);
1148 #ifdef CONFIG_SND_HDA_POWER_SAVE
1149         if (codec->patch_ops.check_power_status)
1150                 codec->patch_ops.check_power_status(codec, nid);
1151 #endif
1152         snd_hda_power_down(codec);
1153         return change;
1154 }
1155
1156 /*
1157  * bound volume controls
1158  *
1159  * bind multiple volumes (# indices, from 0)
1160  */
1161
1162 #define AMP_VAL_IDX_SHIFT       19
1163 #define AMP_VAL_IDX_MASK        (0x0f<<19)
1164
1165 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
1166                                   struct snd_ctl_elem_value *ucontrol)
1167 {
1168         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1169         unsigned long pval;
1170         int err;
1171
1172         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1173         pval = kcontrol->private_value;
1174         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
1175         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
1176         kcontrol->private_value = pval;
1177         mutex_unlock(&codec->spdif_mutex);
1178         return err;
1179 }
1180
1181 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
1182                                   struct snd_ctl_elem_value *ucontrol)
1183 {
1184         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1185         unsigned long pval;
1186         int i, indices, err = 0, change = 0;
1187
1188         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1189         pval = kcontrol->private_value;
1190         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
1191         for (i = 0; i < indices; i++) {
1192                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
1193                         (i << AMP_VAL_IDX_SHIFT);
1194                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
1195                 if (err < 0)
1196                         break;
1197                 change |= err;
1198         }
1199         kcontrol->private_value = pval;
1200         mutex_unlock(&codec->spdif_mutex);
1201         return err < 0 ? err : change;
1202 }
1203
1204 /*
1205  * generic bound volume/swtich controls
1206  */
1207 int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
1208                                  struct snd_ctl_elem_info *uinfo)
1209 {
1210         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1211         struct hda_bind_ctls *c;
1212         int err;
1213
1214         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1215         c = (struct hda_bind_ctls *)kcontrol->private_value;
1216         kcontrol->private_value = *c->values;
1217         err = c->ops->info(kcontrol, uinfo);
1218         kcontrol->private_value = (long)c;
1219         mutex_unlock(&codec->spdif_mutex);
1220         return err;
1221 }
1222
1223 int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
1224                                 struct snd_ctl_elem_value *ucontrol)
1225 {
1226         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1227         struct hda_bind_ctls *c;
1228         int err;
1229
1230         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1231         c = (struct hda_bind_ctls *)kcontrol->private_value;
1232         kcontrol->private_value = *c->values;
1233         err = c->ops->get(kcontrol, ucontrol);
1234         kcontrol->private_value = (long)c;
1235         mutex_unlock(&codec->spdif_mutex);
1236         return err;
1237 }
1238
1239 int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
1240                                 struct snd_ctl_elem_value *ucontrol)
1241 {
1242         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1243         struct hda_bind_ctls *c;
1244         unsigned long *vals;
1245         int err = 0, change = 0;
1246
1247         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1248         c = (struct hda_bind_ctls *)kcontrol->private_value;
1249         for (vals = c->values; *vals; vals++) {
1250                 kcontrol->private_value = *vals;
1251                 err = c->ops->put(kcontrol, ucontrol);
1252                 if (err < 0)
1253                         break;
1254                 change |= err;
1255         }
1256         kcontrol->private_value = (long)c;
1257         mutex_unlock(&codec->spdif_mutex);
1258         return err < 0 ? err : change;
1259 }
1260
1261 int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1262                            unsigned int size, unsigned int __user *tlv)
1263 {
1264         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1265         struct hda_bind_ctls *c;
1266         int err;
1267
1268         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1269         c = (struct hda_bind_ctls *)kcontrol->private_value;
1270         kcontrol->private_value = *c->values;
1271         err = c->ops->tlv(kcontrol, op_flag, size, tlv);
1272         kcontrol->private_value = (long)c;
1273         mutex_unlock(&codec->spdif_mutex);
1274         return err;
1275 }
1276
1277 struct hda_ctl_ops snd_hda_bind_vol = {
1278         .info = snd_hda_mixer_amp_volume_info,
1279         .get = snd_hda_mixer_amp_volume_get,
1280         .put = snd_hda_mixer_amp_volume_put,
1281         .tlv = snd_hda_mixer_amp_tlv
1282 };
1283
1284 struct hda_ctl_ops snd_hda_bind_sw = {
1285         .info = snd_hda_mixer_amp_switch_info,
1286         .get = snd_hda_mixer_amp_switch_get,
1287         .put = snd_hda_mixer_amp_switch_put,
1288         .tlv = snd_hda_mixer_amp_tlv
1289 };
1290
1291 /*
1292  * SPDIF out controls
1293  */
1294
1295 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
1296                                    struct snd_ctl_elem_info *uinfo)
1297 {
1298         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1299         uinfo->count = 1;
1300         return 0;
1301 }
1302
1303 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
1304                                    struct snd_ctl_elem_value *ucontrol)
1305 {
1306         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1307                                            IEC958_AES0_NONAUDIO |
1308                                            IEC958_AES0_CON_EMPHASIS_5015 |
1309                                            IEC958_AES0_CON_NOT_COPYRIGHT;
1310         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
1311                                            IEC958_AES1_CON_ORIGINAL;
1312         return 0;
1313 }
1314
1315 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
1316                                    struct snd_ctl_elem_value *ucontrol)
1317 {
1318         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1319                                            IEC958_AES0_NONAUDIO |
1320                                            IEC958_AES0_PRO_EMPHASIS_5015;
1321         return 0;
1322 }
1323
1324 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
1325                                      struct snd_ctl_elem_value *ucontrol)
1326 {
1327         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1328
1329         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1330         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1331         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1332         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1333
1334         return 0;
1335 }
1336
1337 /* convert from SPDIF status bits to HDA SPDIF bits
1338  * bit 0 (DigEn) is always set zero (to be filled later)
1339  */
1340 static unsigned short convert_from_spdif_status(unsigned int sbits)
1341 {
1342         unsigned short val = 0;
1343
1344         if (sbits & IEC958_AES0_PROFESSIONAL)
1345                 val |= AC_DIG1_PROFESSIONAL;
1346         if (sbits & IEC958_AES0_NONAUDIO)
1347                 val |= AC_DIG1_NONAUDIO;
1348         if (sbits & IEC958_AES0_PROFESSIONAL) {
1349                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
1350                     IEC958_AES0_PRO_EMPHASIS_5015)
1351                         val |= AC_DIG1_EMPHASIS;
1352         } else {
1353                 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
1354                     IEC958_AES0_CON_EMPHASIS_5015)
1355                         val |= AC_DIG1_EMPHASIS;
1356                 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1357                         val |= AC_DIG1_COPYRIGHT;
1358                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1359                         val |= AC_DIG1_LEVEL;
1360                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1361         }
1362         return val;
1363 }
1364
1365 /* convert to SPDIF status bits from HDA SPDIF bits
1366  */
1367 static unsigned int convert_to_spdif_status(unsigned short val)
1368 {
1369         unsigned int sbits = 0;
1370
1371         if (val & AC_DIG1_NONAUDIO)
1372                 sbits |= IEC958_AES0_NONAUDIO;
1373         if (val & AC_DIG1_PROFESSIONAL)
1374                 sbits |= IEC958_AES0_PROFESSIONAL;
1375         if (sbits & IEC958_AES0_PROFESSIONAL) {
1376                 if (sbits & AC_DIG1_EMPHASIS)
1377                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1378         } else {
1379                 if (val & AC_DIG1_EMPHASIS)
1380                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1381                 if (!(val & AC_DIG1_COPYRIGHT))
1382                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1383                 if (val & AC_DIG1_LEVEL)
1384                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1385                 sbits |= val & (0x7f << 8);
1386         }
1387         return sbits;
1388 }
1389
1390 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
1391                                      struct snd_ctl_elem_value *ucontrol)
1392 {
1393         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1394         hda_nid_t nid = kcontrol->private_value;
1395         unsigned short val;
1396         int change;
1397
1398         mutex_lock(&codec->spdif_mutex);
1399         codec->spdif_status = ucontrol->value.iec958.status[0] |
1400                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1401                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1402                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1403         val = convert_from_spdif_status(codec->spdif_status);
1404         val |= codec->spdif_ctls & 1;
1405         change = codec->spdif_ctls != val;
1406         codec->spdif_ctls = val;
1407
1408         if (change) {
1409                 snd_hda_codec_write_cache(codec, nid, 0,
1410                                           AC_VERB_SET_DIGI_CONVERT_1,
1411                                           val & 0xff);
1412                 snd_hda_codec_write_cache(codec, nid, 0,
1413                                           AC_VERB_SET_DIGI_CONVERT_2,
1414                                           val >> 8);
1415         }
1416
1417         mutex_unlock(&codec->spdif_mutex);
1418         return change;
1419 }
1420
1421 #define snd_hda_spdif_out_switch_info   snd_ctl_boolean_mono_info
1422
1423 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
1424                                         struct snd_ctl_elem_value *ucontrol)
1425 {
1426         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1427
1428         ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
1429         return 0;
1430 }
1431
1432 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
1433                                         struct snd_ctl_elem_value *ucontrol)
1434 {
1435         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1436         hda_nid_t nid = kcontrol->private_value;
1437         unsigned short val;
1438         int change;
1439
1440         mutex_lock(&codec->spdif_mutex);
1441         val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
1442         if (ucontrol->value.integer.value[0])
1443                 val |= AC_DIG1_ENABLE;
1444         change = codec->spdif_ctls != val;
1445         if (change) {
1446                 codec->spdif_ctls = val;
1447                 snd_hda_codec_write_cache(codec, nid, 0,
1448                                           AC_VERB_SET_DIGI_CONVERT_1,
1449                                           val & 0xff);
1450                 /* unmute amp switch (if any) */
1451                 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
1452                     (val & AC_DIG1_ENABLE))
1453                         snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
1454                                                  HDA_AMP_MUTE, 0);
1455         }
1456         mutex_unlock(&codec->spdif_mutex);
1457         return change;
1458 }
1459
1460 static struct snd_kcontrol_new dig_mixes[] = {
1461         {
1462                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1463                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1464                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1465                 .info = snd_hda_spdif_mask_info,
1466                 .get = snd_hda_spdif_cmask_get,
1467         },
1468         {
1469                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1470                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1471                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1472                 .info = snd_hda_spdif_mask_info,
1473                 .get = snd_hda_spdif_pmask_get,
1474         },
1475         {
1476                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1477                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1478                 .info = snd_hda_spdif_mask_info,
1479                 .get = snd_hda_spdif_default_get,
1480                 .put = snd_hda_spdif_default_put,
1481         },
1482         {
1483                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1484                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1485                 .info = snd_hda_spdif_out_switch_info,
1486                 .get = snd_hda_spdif_out_switch_get,
1487                 .put = snd_hda_spdif_out_switch_put,
1488         },
1489         { } /* end */
1490 };
1491
1492 #define SPDIF_MAX_IDX   4       /* 4 instances should be enough to probe */
1493
1494 /**
1495  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1496  * @codec: the HDA codec
1497  * @nid: audio out widget NID
1498  *
1499  * Creates controls related with the SPDIF output.
1500  * Called from each patch supporting the SPDIF out.
1501  *
1502  * Returns 0 if successful, or a negative error code.
1503  */
1504 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1505 {
1506         int err;
1507         struct snd_kcontrol *kctl;
1508         struct snd_kcontrol_new *dig_mix;
1509         int idx;
1510
1511         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1512                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Playback Switch",
1513                                              idx))
1514                         break;
1515         }
1516         if (idx >= SPDIF_MAX_IDX) {
1517                 printk(KERN_ERR "hda_codec: too many IEC958 outputs\n");
1518                 return -EBUSY;
1519         }
1520         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1521                 kctl = snd_ctl_new1(dig_mix, codec);
1522                 kctl->id.index = idx;
1523                 kctl->private_value = nid;
1524                 err = snd_ctl_add(codec->bus->card, kctl);
1525                 if (err < 0)
1526                         return err;
1527         }
1528         codec->spdif_ctls =
1529                 snd_hda_codec_read(codec, nid, 0,
1530                                    AC_VERB_GET_DIGI_CONVERT_1, 0);
1531         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1532         return 0;
1533 }
1534
1535 /*
1536  * SPDIF sharing with analog output
1537  */
1538 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
1539                               struct snd_ctl_elem_value *ucontrol)
1540 {
1541         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1542         ucontrol->value.integer.value[0] = mout->share_spdif;
1543         return 0;
1544 }
1545
1546 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
1547                               struct snd_ctl_elem_value *ucontrol)
1548 {
1549         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1550         mout->share_spdif = !!ucontrol->value.integer.value[0];
1551         return 0;
1552 }
1553
1554 static struct snd_kcontrol_new spdif_share_sw = {
1555         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1556         .name = "IEC958 Default PCM Playback Switch",
1557         .info = snd_ctl_boolean_mono_info,
1558         .get = spdif_share_sw_get,
1559         .put = spdif_share_sw_put,
1560 };
1561
1562 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
1563                                   struct hda_multi_out *mout)
1564 {
1565         if (!mout->dig_out_nid)
1566                 return 0;
1567         /* ATTENTION: here mout is passed as private_data, instead of codec */
1568         return snd_ctl_add(codec->bus->card,
1569                            snd_ctl_new1(&spdif_share_sw, mout));
1570 }
1571
1572 /*
1573  * SPDIF input
1574  */
1575
1576 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1577
1578 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
1579                                        struct snd_ctl_elem_value *ucontrol)
1580 {
1581         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1582
1583         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1584         return 0;
1585 }
1586
1587 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
1588                                        struct snd_ctl_elem_value *ucontrol)
1589 {
1590         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1591         hda_nid_t nid = kcontrol->private_value;
1592         unsigned int val = !!ucontrol->value.integer.value[0];
1593         int change;
1594
1595         mutex_lock(&codec->spdif_mutex);
1596         change = codec->spdif_in_enable != val;
1597         if (change) {
1598                 codec->spdif_in_enable = val;
1599                 snd_hda_codec_write_cache(codec, nid, 0,
1600                                           AC_VERB_SET_DIGI_CONVERT_1, val);
1601         }
1602         mutex_unlock(&codec->spdif_mutex);
1603         return change;
1604 }
1605
1606 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
1607                                        struct snd_ctl_elem_value *ucontrol)
1608 {
1609         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1610         hda_nid_t nid = kcontrol->private_value;
1611         unsigned short val;
1612         unsigned int sbits;
1613
1614         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0);
1615         sbits = convert_to_spdif_status(val);
1616         ucontrol->value.iec958.status[0] = sbits;
1617         ucontrol->value.iec958.status[1] = sbits >> 8;
1618         ucontrol->value.iec958.status[2] = sbits >> 16;
1619         ucontrol->value.iec958.status[3] = sbits >> 24;
1620         return 0;
1621 }
1622
1623 static struct snd_kcontrol_new dig_in_ctls[] = {
1624         {
1625                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1626                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1627                 .info = snd_hda_spdif_in_switch_info,
1628                 .get = snd_hda_spdif_in_switch_get,
1629                 .put = snd_hda_spdif_in_switch_put,
1630         },
1631         {
1632                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1633                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1634                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1635                 .info = snd_hda_spdif_mask_info,
1636                 .get = snd_hda_spdif_in_status_get,
1637         },
1638         { } /* end */
1639 };
1640
1641 /**
1642  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1643  * @codec: the HDA codec
1644  * @nid: audio in widget NID
1645  *
1646  * Creates controls related with the SPDIF input.
1647  * Called from each patch supporting the SPDIF in.
1648  *
1649  * Returns 0 if successful, or a negative error code.
1650  */
1651 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1652 {
1653         int err;
1654         struct snd_kcontrol *kctl;
1655         struct snd_kcontrol_new *dig_mix;
1656         int idx;
1657
1658         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1659                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Capture Switch",
1660                                              idx))
1661                         break;
1662         }
1663         if (idx >= SPDIF_MAX_IDX) {
1664                 printk(KERN_ERR "hda_codec: too many IEC958 inputs\n");
1665                 return -EBUSY;
1666         }
1667         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1668                 kctl = snd_ctl_new1(dig_mix, codec);
1669                 kctl->private_value = nid;
1670                 err = snd_ctl_add(codec->bus->card, kctl);
1671                 if (err < 0)
1672                         return err;
1673         }
1674         codec->spdif_in_enable =
1675                 snd_hda_codec_read(codec, nid, 0,
1676                                    AC_VERB_GET_DIGI_CONVERT_1, 0) &
1677                 AC_DIG1_ENABLE;
1678         return 0;
1679 }
1680
1681 #ifdef SND_HDA_NEEDS_RESUME
1682 /*
1683  * command cache
1684  */
1685
1686 /* build a 32bit cache key with the widget id and the command parameter */
1687 #define build_cmd_cache_key(nid, verb)  ((verb << 8) | nid)
1688 #define get_cmd_cache_nid(key)          ((key) & 0xff)
1689 #define get_cmd_cache_cmd(key)          (((key) >> 8) & 0xffff)
1690
1691 /**
1692  * snd_hda_codec_write_cache - send a single command with caching
1693  * @codec: the HDA codec
1694  * @nid: NID to send the command
1695  * @direct: direct flag
1696  * @verb: the verb to send
1697  * @parm: the parameter for the verb
1698  *
1699  * Send a single command without waiting for response.
1700  *
1701  * Returns 0 if successful, or a negative error code.
1702  */
1703 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
1704                               int direct, unsigned int verb, unsigned int parm)
1705 {
1706         int err;
1707         snd_hda_power_up(codec);
1708         mutex_lock(&codec->bus->cmd_mutex);
1709         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
1710         if (!err) {
1711                 struct hda_cache_head *c;
1712                 u32 key = build_cmd_cache_key(nid, verb);
1713                 c = get_alloc_hash(&codec->cmd_cache, key);
1714                 if (c)
1715                         c->val = parm;
1716         }
1717         mutex_unlock(&codec->bus->cmd_mutex);
1718         snd_hda_power_down(codec);
1719         return err;
1720 }
1721
1722 /* resume the all commands from the cache */
1723 void snd_hda_codec_resume_cache(struct hda_codec *codec)
1724 {
1725         struct hda_cache_head *buffer = codec->cmd_cache.buffer;
1726         int i;
1727
1728         for (i = 0; i < codec->cmd_cache.size; i++, buffer++) {
1729                 u32 key = buffer->key;
1730                 if (!key)
1731                         continue;
1732                 snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0,
1733                                     get_cmd_cache_cmd(key), buffer->val);
1734         }
1735 }
1736
1737 /**
1738  * snd_hda_sequence_write_cache - sequence writes with caching
1739  * @codec: the HDA codec
1740  * @seq: VERB array to send
1741  *
1742  * Send the commands sequentially from the given array.
1743  * Thte commands are recorded on cache for power-save and resume.
1744  * The array must be terminated with NID=0.
1745  */
1746 void snd_hda_sequence_write_cache(struct hda_codec *codec,
1747                                   const struct hda_verb *seq)
1748 {
1749         for (; seq->nid; seq++)
1750                 snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb,
1751                                           seq->param);
1752 }
1753 #endif /* SND_HDA_NEEDS_RESUME */
1754
1755 /*
1756  * set power state of the codec
1757  */
1758 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1759                                 unsigned int power_state)
1760 {
1761         hda_nid_t nid;
1762         int i;
1763
1764         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1765                             power_state);
1766         msleep(10); /* partial workaround for "azx_get_response timeout" */
1767
1768         nid = codec->start_nid;
1769         for (i = 0; i < codec->num_nodes; i++, nid++) {
1770                 unsigned int wcaps = get_wcaps(codec, nid);
1771                 if (wcaps & AC_WCAP_POWER) {
1772                         unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
1773                                 AC_WCAP_TYPE_SHIFT;
1774                         if (wid_type == AC_WID_PIN) {
1775                                 unsigned int pincap;
1776                                 /*
1777                                  * don't power down the widget if it controls
1778                                  * eapd and EAPD_BTLENABLE is set.
1779                                  */
1780                                 pincap = snd_hda_param_read(codec, nid,
1781                                                             AC_PAR_PIN_CAP);
1782                                 if (pincap & AC_PINCAP_EAPD) {
1783                                         int eapd = snd_hda_codec_read(codec,
1784                                                 nid, 0,
1785                                                 AC_VERB_GET_EAPD_BTLENABLE, 0);
1786                                         eapd &= 0x02;
1787                                         if (power_state == AC_PWRST_D3 && eapd)
1788                                                 continue;
1789                                 }
1790                         }
1791                         snd_hda_codec_write(codec, nid, 0,
1792                                             AC_VERB_SET_POWER_STATE,
1793                                             power_state);
1794                 }
1795         }
1796
1797         if (power_state == AC_PWRST_D0) {
1798                 unsigned long end_time;
1799                 int state;
1800                 msleep(10);
1801                 /* wait until the codec reachs to D0 */
1802                 end_time = jiffies + msecs_to_jiffies(500);
1803                 do {
1804                         state = snd_hda_codec_read(codec, fg, 0,
1805                                                    AC_VERB_GET_POWER_STATE, 0);
1806                         if (state == power_state)
1807                                 break;
1808                         msleep(1);
1809                 } while (time_after_eq(end_time, jiffies));
1810         }
1811 }
1812
1813 #ifdef SND_HDA_NEEDS_RESUME
1814 /*
1815  * call suspend and power-down; used both from PM and power-save
1816  */
1817 static void hda_call_codec_suspend(struct hda_codec *codec)
1818 {
1819         if (codec->patch_ops.suspend)
1820                 codec->patch_ops.suspend(codec, PMSG_SUSPEND);
1821         hda_set_power_state(codec,
1822                             codec->afg ? codec->afg : codec->mfg,
1823                             AC_PWRST_D3);
1824 #ifdef CONFIG_SND_HDA_POWER_SAVE
1825         cancel_delayed_work(&codec->power_work);
1826         codec->power_on = 0;
1827         codec->power_transition = 0;
1828 #endif
1829 }
1830
1831 /*
1832  * kick up codec; used both from PM and power-save
1833  */
1834 static void hda_call_codec_resume(struct hda_codec *codec)
1835 {
1836         hda_set_power_state(codec,
1837                             codec->afg ? codec->afg : codec->mfg,
1838                             AC_PWRST_D0);
1839         if (codec->patch_ops.resume)
1840                 codec->patch_ops.resume(codec);
1841         else {
1842                 if (codec->patch_ops.init)
1843                         codec->patch_ops.init(codec);
1844                 snd_hda_codec_resume_amp(codec);
1845                 snd_hda_codec_resume_cache(codec);
1846         }
1847 }
1848 #endif /* SND_HDA_NEEDS_RESUME */
1849
1850
1851 /**
1852  * snd_hda_build_controls - build mixer controls
1853  * @bus: the BUS
1854  *
1855  * Creates mixer controls for each codec included in the bus.
1856  *
1857  * Returns 0 if successful, otherwise a negative error code.
1858  */
1859 int __devinit snd_hda_build_controls(struct hda_bus *bus)
1860 {
1861         struct hda_codec *codec;
1862
1863         list_for_each_entry(codec, &bus->codec_list, list) {
1864                 int err = 0;
1865                 /* fake as if already powered-on */
1866                 hda_keep_power_on(codec);
1867                 /* then fire up */
1868                 hda_set_power_state(codec,
1869                                     codec->afg ? codec->afg : codec->mfg,
1870                                     AC_PWRST_D0);
1871                 /* continue to initialize... */
1872                 if (codec->patch_ops.init)
1873                         err = codec->patch_ops.init(codec);
1874                 if (!err && codec->patch_ops.build_controls)
1875                         err = codec->patch_ops.build_controls(codec);
1876                 snd_hda_power_down(codec);
1877                 if (err < 0)
1878                         return err;
1879         }
1880
1881         return 0;
1882 }
1883
1884 /*
1885  * stream formats
1886  */
1887 struct hda_rate_tbl {
1888         unsigned int hz;
1889         unsigned int alsa_bits;
1890         unsigned int hda_fmt;
1891 };
1892
1893 static struct hda_rate_tbl rate_bits[] = {
1894         /* rate in Hz, ALSA rate bitmask, HDA format value */
1895
1896         /* autodetected value used in snd_hda_query_supported_pcm */
1897         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1898         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1899         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1900         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1901         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1902         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1903         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1904         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1905         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1906         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1907         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1908 #define AC_PAR_PCM_RATE_BITS    11
1909         /* up to bits 10, 384kHZ isn't supported properly */
1910
1911         /* not autodetected value */
1912         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
1913
1914         { 0 } /* terminator */
1915 };
1916
1917 /**
1918  * snd_hda_calc_stream_format - calculate format bitset
1919  * @rate: the sample rate
1920  * @channels: the number of channels
1921  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1922  * @maxbps: the max. bps
1923  *
1924  * Calculate the format bitset from the given rate, channels and th PCM format.
1925  *
1926  * Return zero if invalid.
1927  */
1928 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1929                                         unsigned int channels,
1930                                         unsigned int format,
1931                                         unsigned int maxbps)
1932 {
1933         int i;
1934         unsigned int val = 0;
1935
1936         for (i = 0; rate_bits[i].hz; i++)
1937                 if (rate_bits[i].hz == rate) {
1938                         val = rate_bits[i].hda_fmt;
1939                         break;
1940                 }
1941         if (!rate_bits[i].hz) {
1942                 snd_printdd("invalid rate %d\n", rate);
1943                 return 0;
1944         }
1945
1946         if (channels == 0 || channels > 8) {
1947                 snd_printdd("invalid channels %d\n", channels);
1948                 return 0;
1949         }
1950         val |= channels - 1;
1951
1952         switch (snd_pcm_format_width(format)) {
1953         case 8:  val |= 0x00; break;
1954         case 16: val |= 0x10; break;
1955         case 20:
1956         case 24:
1957         case 32:
1958                 if (maxbps >= 32)
1959                         val |= 0x40;
1960                 else if (maxbps >= 24)
1961                         val |= 0x30;
1962                 else
1963                         val |= 0x20;
1964                 break;
1965         default:
1966                 snd_printdd("invalid format width %d\n",
1967                             snd_pcm_format_width(format));
1968                 return 0;
1969         }
1970
1971         return val;
1972 }
1973
1974 /**
1975  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1976  * @codec: the HDA codec
1977  * @nid: NID to query
1978  * @ratesp: the pointer to store the detected rate bitflags
1979  * @formatsp: the pointer to store the detected formats
1980  * @bpsp: the pointer to store the detected format widths
1981  *
1982  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1983  * or @bsps argument is ignored.
1984  *
1985  * Returns 0 if successful, otherwise a negative error code.
1986  */
1987 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1988                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1989 {
1990         int i;
1991         unsigned int val, streams;
1992
1993         val = 0;
1994         if (nid != codec->afg &&
1995             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1996                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1997                 if (val == -1)
1998                         return -EIO;
1999         }
2000         if (!val)
2001                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2002
2003         if (ratesp) {
2004                 u32 rates = 0;
2005                 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
2006                         if (val & (1 << i))
2007                                 rates |= rate_bits[i].alsa_bits;
2008                 }
2009                 *ratesp = rates;
2010         }
2011
2012         if (formatsp || bpsp) {
2013                 u64 formats = 0;
2014                 unsigned int bps;
2015                 unsigned int wcaps;
2016
2017                 wcaps = get_wcaps(codec, nid);
2018                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2019                 if (streams == -1)
2020                         return -EIO;
2021                 if (!streams) {
2022                         streams = snd_hda_param_read(codec, codec->afg,
2023                                                      AC_PAR_STREAM);
2024                         if (streams == -1)
2025                                 return -EIO;
2026                 }
2027
2028                 bps = 0;
2029                 if (streams & AC_SUPFMT_PCM) {
2030                         if (val & AC_SUPPCM_BITS_8) {
2031                                 formats |= SNDRV_PCM_FMTBIT_U8;
2032                                 bps = 8;
2033                         }
2034                         if (val & AC_SUPPCM_BITS_16) {
2035                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
2036                                 bps = 16;
2037                         }
2038                         if (wcaps & AC_WCAP_DIGITAL) {
2039                                 if (val & AC_SUPPCM_BITS_32)
2040                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
2041                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
2042                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
2043                                 if (val & AC_SUPPCM_BITS_24)
2044                                         bps = 24;
2045                                 else if (val & AC_SUPPCM_BITS_20)
2046                                         bps = 20;
2047                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
2048                                           AC_SUPPCM_BITS_32)) {
2049                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
2050                                 if (val & AC_SUPPCM_BITS_32)
2051                                         bps = 32;
2052                                 else if (val & AC_SUPPCM_BITS_24)
2053                                         bps = 24;
2054                                 else if (val & AC_SUPPCM_BITS_20)
2055                                         bps = 20;
2056                         }
2057                 }
2058                 else if (streams == AC_SUPFMT_FLOAT32) {
2059                         /* should be exclusive */
2060                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
2061                         bps = 32;
2062                 } else if (streams == AC_SUPFMT_AC3) {
2063                         /* should be exclusive */
2064                         /* temporary hack: we have still no proper support
2065                          * for the direct AC3 stream...
2066                          */
2067                         formats |= SNDRV_PCM_FMTBIT_U8;
2068                         bps = 8;
2069                 }
2070                 if (formatsp)
2071                         *formatsp = formats;
2072                 if (bpsp)
2073                         *bpsp = bps;
2074         }
2075
2076         return 0;
2077 }
2078
2079 /**
2080  * snd_hda_is_supported_format - check whether the given node supports
2081  * the format val
2082  *
2083  * Returns 1 if supported, 0 if not.
2084  */
2085 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
2086                                 unsigned int format)
2087 {
2088         int i;
2089         unsigned int val = 0, rate, stream;
2090
2091         if (nid != codec->afg &&
2092             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2093                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2094                 if (val == -1)
2095                         return 0;
2096         }
2097         if (!val) {
2098                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2099                 if (val == -1)
2100                         return 0;
2101         }
2102
2103         rate = format & 0xff00;
2104         for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
2105                 if (rate_bits[i].hda_fmt == rate) {
2106                         if (val & (1 << i))
2107                                 break;
2108                         return 0;
2109                 }
2110         if (i >= AC_PAR_PCM_RATE_BITS)
2111                 return 0;
2112
2113         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2114         if (stream == -1)
2115                 return 0;
2116         if (!stream && nid != codec->afg)
2117                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
2118         if (!stream || stream == -1)
2119                 return 0;
2120
2121         if (stream & AC_SUPFMT_PCM) {
2122                 switch (format & 0xf0) {
2123                 case 0x00:
2124                         if (!(val & AC_SUPPCM_BITS_8))
2125                                 return 0;
2126                         break;
2127                 case 0x10:
2128                         if (!(val & AC_SUPPCM_BITS_16))
2129                                 return 0;
2130                         break;
2131                 case 0x20:
2132                         if (!(val & AC_SUPPCM_BITS_20))
2133                                 return 0;
2134                         break;
2135                 case 0x30:
2136                         if (!(val & AC_SUPPCM_BITS_24))
2137                                 return 0;
2138                         break;
2139                 case 0x40:
2140                         if (!(val & AC_SUPPCM_BITS_32))
2141                                 return 0;
2142                         break;
2143                 default:
2144                         return 0;
2145                 }
2146         } else {
2147                 /* FIXME: check for float32 and AC3? */
2148         }
2149
2150         return 1;
2151 }
2152
2153 /*
2154  * PCM stuff
2155  */
2156 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
2157                                       struct hda_codec *codec,
2158                                       struct snd_pcm_substream *substream)
2159 {
2160         return 0;
2161 }
2162
2163 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
2164                                    struct hda_codec *codec,
2165                                    unsigned int stream_tag,
2166                                    unsigned int format,
2167                                    struct snd_pcm_substream *substream)
2168 {
2169         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
2170         return 0;
2171 }
2172
2173 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
2174                                    struct hda_codec *codec,
2175                                    struct snd_pcm_substream *substream)
2176 {
2177         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
2178         return 0;
2179 }
2180
2181 static int __devinit set_pcm_default_values(struct hda_codec *codec,
2182                                             struct hda_pcm_stream *info)
2183 {
2184         /* query support PCM information from the given NID */
2185         if (info->nid && (!info->rates || !info->formats)) {
2186                 snd_hda_query_supported_pcm(codec, info->nid,
2187                                 info->rates ? NULL : &info->rates,
2188                                 info->formats ? NULL : &info->formats,
2189                                 info->maxbps ? NULL : &info->maxbps);
2190         }
2191         if (info->ops.open == NULL)
2192                 info->ops.open = hda_pcm_default_open_close;
2193         if (info->ops.close == NULL)
2194                 info->ops.close = hda_pcm_default_open_close;
2195         if (info->ops.prepare == NULL) {
2196                 snd_assert(info->nid, return -EINVAL);
2197                 info->ops.prepare = hda_pcm_default_prepare;
2198         }
2199         if (info->ops.cleanup == NULL) {
2200                 snd_assert(info->nid, return -EINVAL);
2201                 info->ops.cleanup = hda_pcm_default_cleanup;
2202         }
2203         return 0;
2204 }
2205
2206 /**
2207  * snd_hda_build_pcms - build PCM information
2208  * @bus: the BUS
2209  *
2210  * Create PCM information for each codec included in the bus.
2211  *
2212  * The build_pcms codec patch is requested to set up codec->num_pcms and
2213  * codec->pcm_info properly.  The array is referred by the top-level driver
2214  * to create its PCM instances.
2215  * The allocated codec->pcm_info should be released in codec->patch_ops.free
2216  * callback.
2217  *
2218  * At least, substreams, channels_min and channels_max must be filled for
2219  * each stream.  substreams = 0 indicates that the stream doesn't exist.
2220  * When rates and/or formats are zero, the supported values are queried
2221  * from the given nid.  The nid is used also by the default ops.prepare
2222  * and ops.cleanup callbacks.
2223  *
2224  * The driver needs to call ops.open in its open callback.  Similarly,
2225  * ops.close is supposed to be called in the close callback.
2226  * ops.prepare should be called in the prepare or hw_params callback
2227  * with the proper parameters for set up.
2228  * ops.cleanup should be called in hw_free for clean up of streams.
2229  *
2230  * This function returns 0 if successfull, or a negative error code.
2231  */
2232 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
2233 {
2234         struct hda_codec *codec;
2235
2236         list_for_each_entry(codec, &bus->codec_list, list) {
2237                 unsigned int pcm, s;
2238                 int err;
2239                 if (!codec->patch_ops.build_pcms)
2240                         continue;
2241                 err = codec->patch_ops.build_pcms(codec);
2242                 if (err < 0)
2243                         return err;
2244                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
2245                         for (s = 0; s < 2; s++) {
2246                                 struct hda_pcm_stream *info;
2247                                 info = &codec->pcm_info[pcm].stream[s];
2248                                 if (!info->substreams)
2249                                         continue;
2250                                 err = set_pcm_default_values(codec, info);
2251                                 if (err < 0)
2252                                         return err;
2253                         }
2254                 }
2255         }
2256         return 0;
2257 }
2258
2259 /**
2260  * snd_hda_check_board_config - compare the current codec with the config table
2261  * @codec: the HDA codec
2262  * @num_configs: number of config enums
2263  * @models: array of model name strings
2264  * @tbl: configuration table, terminated by null entries
2265  *
2266  * Compares the modelname or PCI subsystem id of the current codec with the
2267  * given configuration table.  If a matching entry is found, returns its
2268  * config value (supposed to be 0 or positive).
2269  *
2270  * If no entries are matching, the function returns a negative value.
2271  */
2272 int snd_hda_check_board_config(struct hda_codec *codec,
2273                                int num_configs, const char **models,
2274                                const struct snd_pci_quirk *tbl)
2275 {
2276         if (codec->bus->modelname && models) {
2277                 int i;
2278                 for (i = 0; i < num_configs; i++) {
2279                         if (models[i] &&
2280                             !strcmp(codec->bus->modelname, models[i])) {
2281                                 snd_printd(KERN_INFO "hda_codec: model '%s' is "
2282                                            "selected\n", models[i]);
2283                                 return i;
2284                         }
2285                 }
2286         }
2287
2288         if (!codec->bus->pci || !tbl)
2289                 return -1;
2290
2291         tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
2292         if (!tbl)
2293                 return -1;
2294         if (tbl->value >= 0 && tbl->value < num_configs) {
2295 #ifdef CONFIG_SND_DEBUG_DETECT
2296                 char tmp[10];
2297                 const char *model = NULL;
2298                 if (models)
2299                         model = models[tbl->value];
2300                 if (!model) {
2301                         sprintf(tmp, "#%d", tbl->value);
2302                         model = tmp;
2303                 }
2304                 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
2305                             "for config %x:%x (%s)\n",
2306                             model, tbl->subvendor, tbl->subdevice,
2307                             (tbl->name ? tbl->name : "Unknown device"));
2308 #endif
2309                 return tbl->value;
2310         }
2311         return -1;
2312 }
2313
2314 /**
2315  * snd_hda_add_new_ctls - create controls from the array
2316  * @codec: the HDA codec
2317  * @knew: the array of struct snd_kcontrol_new
2318  *
2319  * This helper function creates and add new controls in the given array.
2320  * The array must be terminated with an empty entry as terminator.
2321  *
2322  * Returns 0 if successful, or a negative error code.
2323  */
2324 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2325 {
2326         int err;
2327
2328         for (; knew->name; knew++) {
2329                 struct snd_kcontrol *kctl;
2330                 kctl = snd_ctl_new1(knew, codec);
2331                 if (!kctl)
2332                         return -ENOMEM;
2333                 err = snd_ctl_add(codec->bus->card, kctl);
2334                 if (err < 0) {
2335                         if (!codec->addr)
2336                                 return err;
2337                         kctl = snd_ctl_new1(knew, codec);
2338                         if (!kctl)
2339                                 return -ENOMEM;
2340                         kctl->id.device = codec->addr;
2341                         err = snd_ctl_add(codec->bus->card, kctl);
2342                         if (err < 0)
2343                                 return err;
2344                 }
2345         }
2346         return 0;
2347 }
2348
2349 #ifdef CONFIG_SND_HDA_POWER_SAVE
2350 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2351                                 unsigned int power_state);
2352
2353 static void hda_power_work(struct work_struct *work)
2354 {
2355         struct hda_codec *codec =
2356                 container_of(work, struct hda_codec, power_work.work);
2357
2358         if (!codec->power_on || codec->power_count) {
2359                 codec->power_transition = 0;
2360                 return;
2361         }
2362
2363         hda_call_codec_suspend(codec);
2364         if (codec->bus->ops.pm_notify)
2365                 codec->bus->ops.pm_notify(codec);
2366 }
2367
2368 static void hda_keep_power_on(struct hda_codec *codec)
2369 {
2370         codec->power_count++;
2371         codec->power_on = 1;
2372 }
2373
2374 void snd_hda_power_up(struct hda_codec *codec)
2375 {
2376         codec->power_count++;
2377         if (codec->power_on || codec->power_transition)
2378                 return;
2379
2380         codec->power_on = 1;
2381         if (codec->bus->ops.pm_notify)
2382                 codec->bus->ops.pm_notify(codec);
2383         hda_call_codec_resume(codec);
2384         cancel_delayed_work(&codec->power_work);
2385         codec->power_transition = 0;
2386 }
2387
2388 void snd_hda_power_down(struct hda_codec *codec)
2389 {
2390         --codec->power_count;
2391         if (!codec->power_on || codec->power_count || codec->power_transition)
2392                 return;
2393         if (power_save) {
2394                 codec->power_transition = 1; /* avoid reentrance */
2395                 schedule_delayed_work(&codec->power_work,
2396                                       msecs_to_jiffies(power_save * 1000));
2397         }
2398 }
2399
2400 int snd_hda_check_amp_list_power(struct hda_codec *codec,
2401                                  struct hda_loopback_check *check,
2402                                  hda_nid_t nid)
2403 {
2404         struct hda_amp_list *p;
2405         int ch, v;
2406
2407         if (!check->amplist)
2408                 return 0;
2409         for (p = check->amplist; p->nid; p++) {
2410                 if (p->nid == nid)
2411                         break;
2412         }
2413         if (!p->nid)
2414                 return 0; /* nothing changed */
2415
2416         for (p = check->amplist; p->nid; p++) {
2417                 for (ch = 0; ch < 2; ch++) {
2418                         v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
2419                                                    p->idx);
2420                         if (!(v & HDA_AMP_MUTE) && v > 0) {
2421                                 if (!check->power_on) {
2422                                         check->power_on = 1;
2423                                         snd_hda_power_up(codec);
2424                                 }
2425                                 return 1;
2426                         }
2427                 }
2428         }
2429         if (check->power_on) {
2430                 check->power_on = 0;
2431                 snd_hda_power_down(codec);
2432         }
2433         return 0;
2434 }
2435 #endif
2436
2437 /*
2438  * Channel mode helper
2439  */
2440 int snd_hda_ch_mode_info(struct hda_codec *codec,
2441                          struct snd_ctl_elem_info *uinfo,
2442                          const struct hda_channel_mode *chmode,
2443                          int num_chmodes)
2444 {
2445         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2446         uinfo->count = 1;
2447         uinfo->value.enumerated.items = num_chmodes;
2448         if (uinfo->value.enumerated.item >= num_chmodes)
2449                 uinfo->value.enumerated.item = num_chmodes - 1;
2450         sprintf(uinfo->value.enumerated.name, "%dch",
2451                 chmode[uinfo->value.enumerated.item].channels);
2452         return 0;
2453 }
2454
2455 int snd_hda_ch_mode_get(struct hda_codec *codec,
2456                         struct snd_ctl_elem_value *ucontrol,
2457                         const struct hda_channel_mode *chmode,
2458                         int num_chmodes,
2459                         int max_channels)
2460 {
2461         int i;
2462
2463         for (i = 0; i < num_chmodes; i++) {
2464                 if (max_channels == chmode[i].channels) {
2465                         ucontrol->value.enumerated.item[0] = i;
2466                         break;
2467                 }
2468         }
2469         return 0;
2470 }
2471
2472 int snd_hda_ch_mode_put(struct hda_codec *codec,
2473                         struct snd_ctl_elem_value *ucontrol,
2474                         const struct hda_channel_mode *chmode,
2475                         int num_chmodes,
2476                         int *max_channelsp)
2477 {
2478         unsigned int mode;
2479
2480         mode = ucontrol->value.enumerated.item[0];
2481         if (mode >= num_chmodes)
2482                 return -EINVAL;
2483         if (*max_channelsp == chmode[mode].channels)
2484                 return 0;
2485         /* change the current channel setting */
2486         *max_channelsp = chmode[mode].channels;
2487         if (chmode[mode].sequence)
2488                 snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
2489         return 1;
2490 }
2491
2492 /*
2493  * input MUX helper
2494  */
2495 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
2496                            struct snd_ctl_elem_info *uinfo)
2497 {
2498         unsigned int index;
2499
2500         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2501         uinfo->count = 1;
2502         uinfo->value.enumerated.items = imux->num_items;
2503         if (!imux->num_items)
2504                 return 0;
2505         index = uinfo->value.enumerated.item;
2506         if (index >= imux->num_items)
2507                 index = imux->num_items - 1;
2508         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
2509         return 0;
2510 }
2511
2512 int snd_hda_input_mux_put(struct hda_codec *codec,
2513                           const struct hda_input_mux *imux,
2514                           struct snd_ctl_elem_value *ucontrol,
2515                           hda_nid_t nid,
2516                           unsigned int *cur_val)
2517 {
2518         unsigned int idx;
2519
2520         if (!imux->num_items)
2521                 return 0;
2522         idx = ucontrol->value.enumerated.item[0];
2523         if (idx >= imux->num_items)
2524                 idx = imux->num_items - 1;
2525         if (*cur_val == idx)
2526                 return 0;
2527         snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
2528                                   imux->items[idx].index);
2529         *cur_val = idx;
2530         return 1;
2531 }
2532
2533
2534 /*
2535  * Multi-channel / digital-out PCM helper functions
2536  */
2537
2538 /* setup SPDIF output stream */
2539 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
2540                                  unsigned int stream_tag, unsigned int format)
2541 {
2542         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2543         if (codec->spdif_ctls & AC_DIG1_ENABLE)
2544                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
2545                                     codec->spdif_ctls & ~AC_DIG1_ENABLE & 0xff);
2546         snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
2547         /* turn on again (if needed) */
2548         if (codec->spdif_ctls & AC_DIG1_ENABLE)
2549                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
2550                                     codec->spdif_ctls & 0xff);
2551 }
2552
2553 /*
2554  * open the digital out in the exclusive mode
2555  */
2556 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
2557                                struct hda_multi_out *mout)
2558 {
2559         mutex_lock(&codec->spdif_mutex);
2560         if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
2561                 /* already opened as analog dup; reset it once */
2562                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
2563         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
2564         mutex_unlock(&codec->spdif_mutex);
2565         return 0;
2566 }
2567
2568 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
2569                                   struct hda_multi_out *mout,
2570                                   unsigned int stream_tag,
2571                                   unsigned int format,
2572                                   struct snd_pcm_substream *substream)
2573 {
2574         mutex_lock(&codec->spdif_mutex);
2575         setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
2576         mutex_unlock(&codec->spdif_mutex);
2577         return 0;
2578 }
2579
2580 /*
2581  * release the digital out
2582  */
2583 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
2584                                 struct hda_multi_out *mout)
2585 {
2586         mutex_lock(&codec->spdif_mutex);
2587         mout->dig_out_used = 0;
2588         mutex_unlock(&codec->spdif_mutex);
2589         return 0;
2590 }
2591
2592 /*
2593  * set up more restrictions for analog out
2594  */
2595 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
2596                                   struct hda_multi_out *mout,
2597                                   struct snd_pcm_substream *substream,
2598                                   struct hda_pcm_stream *hinfo)
2599 {
2600         struct snd_pcm_runtime *runtime = substream->runtime;
2601         runtime->hw.channels_max = mout->max_channels;
2602         if (mout->dig_out_nid) {
2603                 if (!mout->analog_rates) {
2604                         mout->analog_rates = hinfo->rates;
2605                         mout->analog_formats = hinfo->formats;
2606                         mout->analog_maxbps = hinfo->maxbps;
2607                 } else {
2608                         runtime->hw.rates = mout->analog_rates;
2609                         runtime->hw.formats = mout->analog_formats;
2610                         hinfo->maxbps = mout->analog_maxbps;
2611                 }
2612                 if (!mout->spdif_rates) {
2613                         snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
2614                                                     &mout->spdif_rates,
2615                                                     &mout->spdif_formats,
2616                                                     &mout->spdif_maxbps);
2617                 }
2618                 mutex_lock(&codec->spdif_mutex);
2619                 if (mout->share_spdif) {
2620                         runtime->hw.rates &= mout->spdif_rates;
2621                         runtime->hw.formats &= mout->spdif_formats;
2622                         if (mout->spdif_maxbps < hinfo->maxbps)
2623                                 hinfo->maxbps = mout->spdif_maxbps;
2624                 }
2625         }
2626         mutex_unlock(&codec->spdif_mutex);
2627         return snd_pcm_hw_constraint_step(substream->runtime, 0,
2628                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2629 }
2630
2631 /*
2632  * set up the i/o for analog out
2633  * when the digital out is available, copy the front out to digital out, too.
2634  */
2635 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
2636                                      struct hda_multi_out *mout,
2637                                      unsigned int stream_tag,
2638                                      unsigned int format,
2639                                      struct snd_pcm_substream *substream)
2640 {
2641         hda_nid_t *nids = mout->dac_nids;
2642         int chs = substream->runtime->channels;
2643         int i;
2644
2645         mutex_lock(&codec->spdif_mutex);
2646         if (mout->dig_out_nid && mout->share_spdif &&
2647             mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
2648                 if (chs == 2 &&
2649                     snd_hda_is_supported_format(codec, mout->dig_out_nid,
2650                                                 format) &&
2651                     !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
2652                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
2653                         setup_dig_out_stream(codec, mout->dig_out_nid,
2654                                              stream_tag, format);
2655                 } else {
2656                         mout->dig_out_used = 0;
2657                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
2658                                                    0, 0, 0);
2659                 }
2660         }
2661         mutex_unlock(&codec->spdif_mutex);
2662
2663         /* front */
2664         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
2665                                    0, format);
2666         if (!mout->no_share_stream &&
2667             mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
2668                 /* headphone out will just decode front left/right (stereo) */
2669                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
2670                                            0, format);
2671         /* extra outputs copied from front */
2672         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
2673                 if (!mout->no_share_stream && mout->extra_out_nid[i])
2674                         snd_hda_codec_setup_stream(codec,
2675                                                    mout->extra_out_nid[i],
2676                                                    stream_tag, 0, format);
2677
2678         /* surrounds */
2679         for (i = 1; i < mout->num_dacs; i++) {
2680                 if (chs >= (i + 1) * 2) /* independent out */
2681                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
2682                                                    i * 2, format);
2683                 else if (!mout->no_share_stream) /* copy front */
2684                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
2685                                                    0, format);
2686         }
2687         return 0;
2688 }
2689
2690 /*
2691  * clean up the setting for analog out
2692  */
2693 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
2694                                      struct hda_multi_out *mout)
2695 {
2696         hda_nid_t *nids = mout->dac_nids;
2697         int i;
2698
2699         for (i = 0; i < mout->num_dacs; i++)
2700                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
2701         if (mout->hp_nid)
2702                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
2703         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
2704                 if (mout->extra_out_nid[i])
2705                         snd_hda_codec_setup_stream(codec,
2706                                                    mout->extra_out_nid[i],
2707                                                    0, 0, 0);
2708         mutex_lock(&codec->spdif_mutex);
2709         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
2710                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
2711                 mout->dig_out_used = 0;
2712         }
2713         mutex_unlock(&codec->spdif_mutex);
2714         return 0;
2715 }
2716
2717 /*
2718  * Helper for automatic ping configuration
2719  */
2720
2721 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
2722 {
2723         for (; *list; list++)
2724                 if (*list == nid)
2725                         return 1;
2726         return 0;
2727 }
2728
2729
2730 /*
2731  * Sort an associated group of pins according to their sequence numbers.
2732  */
2733 static void sort_pins_by_sequence(hda_nid_t * pins, short * sequences,
2734                                   int num_pins)
2735 {
2736         int i, j;
2737         short seq;
2738         hda_nid_t nid;
2739
2740         for (i = 0; i < num_pins; i++) {
2741                 for (j = i + 1; j < num_pins; j++) {
2742                         if (sequences[i] > sequences[j]) {
2743                                 seq = sequences[i];
2744                                 sequences[i] = sequences[j];
2745                                 sequences[j] = seq;
2746                                 nid = pins[i];
2747                                 pins[i] = pins[j];
2748                                 pins[j] = nid;
2749                         }
2750                 }
2751         }
2752 }
2753
2754
2755 /*
2756  * Parse all pin widgets and store the useful pin nids to cfg
2757  *
2758  * The number of line-outs or any primary output is stored in line_outs,
2759  * and the corresponding output pins are assigned to line_out_pins[],
2760  * in the order of front, rear, CLFE, side, ...
2761  *
2762  * If more extra outputs (speaker and headphone) are found, the pins are
2763  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
2764  * is detected, one of speaker of HP pins is assigned as the primary
2765  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
2766  * if any analog output exists.
2767  *
2768  * The analog input pins are assigned to input_pins array.
2769  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2770  * respectively.
2771  */
2772 int snd_hda_parse_pin_def_config(struct hda_codec *codec,
2773                                  struct auto_pin_cfg *cfg,
2774                                  hda_nid_t *ignore_nids)
2775 {
2776         hda_nid_t nid, end_nid;
2777         short seq, assoc_line_out, assoc_speaker;
2778         short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
2779         short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
2780         short sequences_hp[ARRAY_SIZE(cfg->hp_pins)];
2781
2782         memset(cfg, 0, sizeof(*cfg));
2783
2784         memset(sequences_line_out, 0, sizeof(sequences_line_out));
2785         memset(sequences_speaker, 0, sizeof(sequences_speaker));
2786         memset(sequences_hp, 0, sizeof(sequences_hp));
2787         assoc_line_out = assoc_speaker = 0;
2788
2789         end_nid = codec->start_nid + codec->num_nodes;
2790         for (nid = codec->start_nid; nid < end_nid; nid++) {
2791                 unsigned int wid_caps = get_wcaps(codec, nid);
2792                 unsigned int wid_type =
2793                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2794                 unsigned int def_conf;
2795                 short assoc, loc;
2796
2797                 /* read all default configuration for pin complex */
2798                 if (wid_type != AC_WID_PIN)
2799                         continue;
2800                 /* ignore the given nids (e.g. pc-beep returns error) */
2801                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2802                         continue;
2803
2804                 def_conf = snd_hda_codec_read(codec, nid, 0,
2805                                               AC_VERB_GET_CONFIG_DEFAULT, 0);
2806                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2807                         continue;
2808                 loc = get_defcfg_location(def_conf);
2809                 switch (get_defcfg_device(def_conf)) {
2810                 case AC_JACK_LINE_OUT:
2811                         seq = get_defcfg_sequence(def_conf);
2812                         assoc = get_defcfg_association(def_conf);
2813
2814                         if (!(wid_caps & AC_WCAP_STEREO))
2815                                 if (!cfg->mono_out_pin)
2816                                         cfg->mono_out_pin = nid;
2817                         if (!assoc)
2818                                 continue;
2819                         if (!assoc_line_out)
2820                                 assoc_line_out = assoc;
2821                         else if (assoc_line_out != assoc)
2822                                 continue;
2823                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2824                                 continue;
2825                         cfg->line_out_pins[cfg->line_outs] = nid;
2826                         sequences_line_out[cfg->line_outs] = seq;
2827                         cfg->line_outs++;
2828                         break;
2829                 case AC_JACK_SPEAKER:
2830                         seq = get_defcfg_sequence(def_conf);
2831                         assoc = get_defcfg_association(def_conf);
2832                         if (! assoc)
2833                                 continue;
2834                         if (! assoc_speaker)
2835                                 assoc_speaker = assoc;
2836                         else if (assoc_speaker != assoc)
2837                                 continue;
2838                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2839                                 continue;
2840                         cfg->speaker_pins[cfg->speaker_outs] = nid;
2841                         sequences_speaker[cfg->speaker_outs] = seq;
2842                         cfg->speaker_outs++;
2843                         break;
2844                 case AC_JACK_HP_OUT:
2845                         seq = get_defcfg_sequence(def_conf);
2846                         assoc = get_defcfg_association(def_conf);
2847                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
2848                                 continue;
2849                         cfg->hp_pins[cfg->hp_outs] = nid;
2850                         sequences_hp[cfg->hp_outs] = (assoc << 4) | seq;
2851                         cfg->hp_outs++;
2852                         break;
2853                 case AC_JACK_MIC_IN: {
2854                         int preferred, alt;
2855                         if (loc == AC_JACK_LOC_FRONT) {
2856                                 preferred = AUTO_PIN_FRONT_MIC;
2857                                 alt = AUTO_PIN_MIC;
2858                         } else {
2859                                 preferred = AUTO_PIN_MIC;
2860                                 alt = AUTO_PIN_FRONT_MIC;
2861                         }
2862                         if (!cfg->input_pins[preferred])
2863                                 cfg->input_pins[preferred] = nid;
2864                         else if (!cfg->input_pins[alt])
2865                                 cfg->input_pins[alt] = nid;
2866                         break;
2867                 }
2868                 case AC_JACK_LINE_IN:
2869                         if (loc == AC_JACK_LOC_FRONT)
2870                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2871                         else
2872                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
2873                         break;
2874                 case AC_JACK_CD:
2875                         cfg->input_pins[AUTO_PIN_CD] = nid;
2876                         break;
2877                 case AC_JACK_AUX:
2878                         cfg->input_pins[AUTO_PIN_AUX] = nid;
2879                         break;
2880                 case AC_JACK_SPDIF_OUT:
2881                         cfg->dig_out_pin = nid;
2882                         break;
2883                 case AC_JACK_SPDIF_IN:
2884                         cfg->dig_in_pin = nid;
2885                         break;
2886                 }
2887         }
2888
2889         /* FIX-UP:
2890          * If no line-out is defined but multiple HPs are found,
2891          * some of them might be the real line-outs.
2892          */
2893         if (!cfg->line_outs && cfg->hp_outs > 1) {
2894                 int i = 0;
2895                 while (i < cfg->hp_outs) {
2896                         /* The real HPs should have the sequence 0x0f */
2897                         if ((sequences_hp[i] & 0x0f) == 0x0f) {
2898                                 i++;
2899                                 continue;
2900                         }
2901                         /* Move it to the line-out table */
2902                         cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i];
2903                         sequences_line_out[cfg->line_outs] = sequences_hp[i];
2904                         cfg->line_outs++;
2905                         cfg->hp_outs--;
2906                         memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
2907                                 sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
2908                         memmove(sequences_hp + i - 1, sequences_hp + i,
2909                                 sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
2910                 }
2911         }
2912
2913         /* sort by sequence */
2914         sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
2915                               cfg->line_outs);
2916         sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
2917                               cfg->speaker_outs);
2918         sort_pins_by_sequence(cfg->hp_pins, sequences_hp,
2919                               cfg->hp_outs);
2920
2921         /* if we have only one mic, make it AUTO_PIN_MIC */
2922         if (!cfg->input_pins[AUTO_PIN_MIC] &&
2923             cfg->input_pins[AUTO_PIN_FRONT_MIC]) {
2924                 cfg->input_pins[AUTO_PIN_MIC] =
2925                         cfg->input_pins[AUTO_PIN_FRONT_MIC];
2926                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = 0;
2927         }
2928         /* ditto for line-in */
2929         if (!cfg->input_pins[AUTO_PIN_LINE] &&
2930             cfg->input_pins[AUTO_PIN_FRONT_LINE]) {
2931                 cfg->input_pins[AUTO_PIN_LINE] =
2932                         cfg->input_pins[AUTO_PIN_FRONT_LINE];
2933                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = 0;
2934         }
2935
2936         /*
2937          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2938          * as a primary output
2939          */
2940         if (!cfg->line_outs) {
2941                 if (cfg->speaker_outs) {
2942                         cfg->line_outs = cfg->speaker_outs;
2943                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
2944                                sizeof(cfg->speaker_pins));
2945                         cfg->speaker_outs = 0;
2946                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2947                         cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
2948                 } else if (cfg->hp_outs) {
2949                         cfg->line_outs = cfg->hp_outs;
2950                         memcpy(cfg->line_out_pins, cfg->hp_pins,
2951                                sizeof(cfg->hp_pins));
2952                         cfg->hp_outs = 0;
2953                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
2954                         cfg->line_out_type = AUTO_PIN_HP_OUT;
2955                 }
2956         }
2957
2958         /* Reorder the surround channels
2959          * ALSA sequence is front/surr/clfe/side
2960          * HDA sequence is:
2961          *    4-ch: front/surr  =>  OK as it is
2962          *    6-ch: front/clfe/surr
2963          *    8-ch: front/clfe/rear/side|fc
2964          */
2965         switch (cfg->line_outs) {
2966         case 3:
2967         case 4:
2968                 nid = cfg->line_out_pins[1];
2969                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2970                 cfg->line_out_pins[2] = nid;
2971                 break;
2972         }
2973
2974         /*
2975          * debug prints of the parsed results
2976          */
2977         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2978                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2979                    cfg->line_out_pins[2], cfg->line_out_pins[3],
2980                    cfg->line_out_pins[4]);
2981         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2982                    cfg->speaker_outs, cfg->speaker_pins[0],
2983                    cfg->speaker_pins[1], cfg->speaker_pins[2],
2984                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
2985         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2986                    cfg->hp_outs, cfg->hp_pins[0],
2987                    cfg->hp_pins[1], cfg->hp_pins[2],
2988                    cfg->hp_pins[3], cfg->hp_pins[4]);
2989         snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
2990         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2991                    " cd=0x%x, aux=0x%x\n",
2992                    cfg->input_pins[AUTO_PIN_MIC],
2993                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
2994                    cfg->input_pins[AUTO_PIN_LINE],
2995                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
2996                    cfg->input_pins[AUTO_PIN_CD],
2997                    cfg->input_pins[AUTO_PIN_AUX]);
2998
2999         return 0;
3000 }
3001
3002 /* labels for input pins */
3003 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
3004         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
3005 };
3006
3007
3008 #ifdef CONFIG_PM
3009 /*
3010  * power management
3011  */
3012
3013 /**
3014  * snd_hda_suspend - suspend the codecs
3015  * @bus: the HDA bus
3016  * @state: suspsend state
3017  *
3018  * Returns 0 if successful.
3019  */
3020 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
3021 {
3022         struct hda_codec *codec;
3023
3024         list_for_each_entry(codec, &bus->codec_list, list) {
3025 #ifdef CONFIG_SND_HDA_POWER_SAVE
3026                 if (!codec->power_on)
3027                         continue;
3028 #endif
3029                 hda_call_codec_suspend(codec);
3030         }
3031         return 0;
3032 }
3033
3034 /**
3035  * snd_hda_resume - resume the codecs
3036  * @bus: the HDA bus
3037  * @state: resume state
3038  *
3039  * Returns 0 if successful.
3040  *
3041  * This fucntion is defined only when POWER_SAVE isn't set.
3042  * In the power-save mode, the codec is resumed dynamically.
3043  */
3044 int snd_hda_resume(struct hda_bus *bus)
3045 {
3046         struct hda_codec *codec;
3047
3048         list_for_each_entry(codec, &bus->codec_list, list) {
3049                 if (snd_hda_codec_needs_resume(codec))
3050                         hda_call_codec_resume(codec);
3051         }
3052         return 0;
3053 }
3054 #ifdef CONFIG_SND_HDA_POWER_SAVE
3055 int snd_hda_codecs_inuse(struct hda_bus *bus)
3056 {
3057         struct hda_codec *codec;
3058
3059         list_for_each_entry(codec, &bus->codec_list, list) {
3060                 if (snd_hda_codec_needs_resume(codec))
3061                         return 1;
3062         }
3063         return 0;
3064 }
3065 #endif
3066 #endif