git.oblomov.eu Git - linux-2.6/blob - sound/pci/hda/hda_codec.c

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