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 <linux/mutex.h>
  29 #include <sound/core.h>
  30 #include "hda_codec.h"
  31 #include <sound/asoundef.h>
  32 #include <sound/initval.h>
  33 #include "hda_local.h"
  34
  35
  36 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  37 MODULE_DESCRIPTION("Universal interface for High Definition Audio Codec");
  38 MODULE_LICENSE("GPL");
  39
  40
  41 /*
  42  * vendor / preset table
  43  */
  44
  45 struct hda_vendor_id {
  46         unsigned int id;
  47         const char *name;
  48 };
  49
  50 /* codec vendor labels */
  51 static struct hda_vendor_id hda_vendor_ids[] = {
  52         { 0x10ec, "Realtek" },
  53         { 0x11d4, "Analog Devices" },
  54         { 0x13f6, "C-Media" },
  55         { 0x434d, "C-Media" },
  56         { 0x8384, "SigmaTel" },
  57         {} /* terminator */
  58 };
  59
  60 /* codec presets */
  61 #include "hda_patch.h"
  62
  63
  64 /**
  65  * snd_hda_codec_read - send a command and get the response
  66  * @codec: the HDA codec
  67  * @nid: NID to send the command
  68  * @direct: direct flag
  69  * @verb: the verb to send
  70  * @parm: the parameter for the verb
  71  *
  72  * Send a single command and read the corresponding response.
  73  *
  74  * Returns the obtained response value, or -1 for an error.
  75  */
  76 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
  77                                 unsigned int verb, unsigned int parm)
  78 {
  79         unsigned int res;
  80         mutex_lock(&codec->bus->cmd_mutex);
  81         if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
  82                 res = codec->bus->ops.get_response(codec);
  83         else
  84                 res = (unsigned int)-1;
  85         mutex_unlock(&codec->bus->cmd_mutex);
  86         return res;
  87 }
  88
  89 EXPORT_SYMBOL(snd_hda_codec_read);
  90
  91 /**
  92  * snd_hda_codec_write - send a single command without waiting for response
  93  * @codec: the HDA codec
  94  * @nid: NID to send the command
  95  * @direct: direct flag
  96  * @verb: the verb to send
  97  * @parm: the parameter for the verb
  98  *
  99  * Send a single command without waiting for response.
 100  *
 101  * Returns 0 if successful, or a negative error code.
 102  */
 103 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 104                          unsigned int verb, unsigned int parm)
 105 {
 106         int err;
 107         mutex_lock(&codec->bus->cmd_mutex);
 108         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
 109         mutex_unlock(&codec->bus->cmd_mutex);
 110         return err;
 111 }
 112
 113 EXPORT_SYMBOL(snd_hda_codec_write);
 114
 115 /**
 116  * snd_hda_sequence_write - sequence writes
 117  * @codec: the HDA codec
 118  * @seq: VERB array to send
 119  *
 120  * Send the commands sequentially from the given array.
 121  * The array must be terminated with NID=0.
 122  */
 123 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 124 {
 125         for (; seq->nid; seq++)
 126                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 127 }
 128
 129 EXPORT_SYMBOL(snd_hda_sequence_write);
 130
 131 /**
 132  * snd_hda_get_sub_nodes - get the range of sub nodes
 133  * @codec: the HDA codec
 134  * @nid: NID to parse
 135  * @start_id: the pointer to store the start NID
 136  *
 137  * Parse the NID and store the start NID of its sub-nodes.
 138  * Returns the number of sub-nodes.
 139  */
 140 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
 141 {
 142         unsigned int parm;
 143
 144         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
 145         *start_id = (parm >> 16) & 0x7fff;
 146         return (int)(parm & 0x7fff);
 147 }
 148
 149 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
 150
 151 /**
 152  * snd_hda_get_connections - get connection list
 153  * @codec: the HDA codec
 154  * @nid: NID to parse
 155  * @conn_list: connection list array
 156  * @max_conns: max. number of connections to store
 157  *
 158  * Parses the connection list of the given widget and stores the list
 159  * of NIDs.
 160  *
 161  * Returns the number of connections, or a negative error code.
 162  */
 163 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 164                             hda_nid_t *conn_list, int max_conns)
 165 {
 166         unsigned int parm;
 167         int i, conn_len, conns;
 168         unsigned int shift, num_elems, mask;
 169         hda_nid_t prev_nid;
 170
 171         snd_assert(conn_list && max_conns > 0, return -EINVAL);
 172
 173         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 174         if (parm & AC_CLIST_LONG) {
 175                 /* long form */
 176                 shift = 16;
 177                 num_elems = 2;
 178         } else {
 179                 /* short form */
 180                 shift = 8;
 181                 num_elems = 4;
 182         }
 183         conn_len = parm & AC_CLIST_LENGTH;
 184         mask = (1 << (shift-1)) - 1;
 185
 186         if (! conn_len)
 187                 return 0; /* no connection */
 188
 189         if (conn_len == 1) {
 190                 /* single connection */
 191                 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
 192                 conn_list[0] = parm & mask;
 193                 return 1;
 194         }
 195
 196         /* multi connection */
 197         conns = 0;
 198         prev_nid = 0;
 199         for (i = 0; i < conn_len; i++) {
 200                 int range_val;
 201                 hda_nid_t val, n;
 202
 203                 if (i % num_elems == 0)
 204                         parm = snd_hda_codec_read(codec, nid, 0,
 205                                                   AC_VERB_GET_CONNECT_LIST, i);
 206                 range_val = !! (parm & (1 << (shift-1))); /* ranges */
 207                 val = parm & mask;
 208                 parm >>= shift;
 209                 if (range_val) {
 210                         /* ranges between the previous and this one */
 211                         if (! prev_nid || prev_nid >= val) {
 212                                 snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", prev_nid, val);
 213                                 continue;
 214                         }
 215                         for (n = prev_nid + 1; n <= val; n++) {
 216                                 if (conns >= max_conns) {
 217                                         snd_printk(KERN_ERR "Too many connections\n");
 218                                         return -EINVAL;
 219                                 }
 220                                 conn_list[conns++] = n;
 221                         }
 222                 } else {
 223                         if (conns >= max_conns) {
 224                                 snd_printk(KERN_ERR "Too many connections\n");
 225                                 return -EINVAL;
 226                         }
 227                         conn_list[conns++] = val;
 228                 }
 229                 prev_nid = val;
 230         }
 231         return conns;
 232 }
 233
 234
 235 /**
 236  * snd_hda_queue_unsol_event - add an unsolicited event to queue
 237  * @bus: the BUS
 238  * @res: unsolicited event (lower 32bit of RIRB entry)
 239  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
 240  *
 241  * Adds the given event to the queue.  The events are processed in
 242  * the workqueue asynchronously.  Call this function in the interrupt
 243  * hanlder when RIRB receives an unsolicited event.
 244  *
 245  * Returns 0 if successful, or a negative error code.
 246  */
 247 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 248 {
 249         struct hda_bus_unsolicited *unsol;
 250         unsigned int wp;
 251
 252         if ((unsol = bus->unsol) == NULL)
 253                 return 0;
 254
 255         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
 256         unsol->wp = wp;
 257
 258         wp <<= 1;
 259         unsol->queue[wp] = res;
 260         unsol->queue[wp + 1] = res_ex;
 261
 262         queue_work(unsol->workq, &unsol->work);
 263
 264         return 0;
 265 }
 266
 267 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
 268
 269 /*
 270  * process queueud unsolicited events
 271  */
 272 static void process_unsol_events(void *data)
 273 {
 274         struct hda_bus *bus = data;
 275         struct hda_bus_unsolicited *unsol = bus->unsol;
 276         struct hda_codec *codec;
 277         unsigned int rp, caddr, res;
 278
 279         while (unsol->rp != unsol->wp) {
 280                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
 281                 unsol->rp = rp;
 282                 rp <<= 1;
 283                 res = unsol->queue[rp];
 284                 caddr = unsol->queue[rp + 1];
 285                 if (! (caddr & (1 << 4))) /* no unsolicited event? */
 286                         continue;
 287                 codec = bus->caddr_tbl[caddr & 0x0f];
 288                 if (codec && codec->patch_ops.unsol_event)
 289                         codec->patch_ops.unsol_event(codec, res);
 290         }
 291 }
 292
 293 /*
 294  * initialize unsolicited queue
 295  */
 296 static int init_unsol_queue(struct hda_bus *bus)
 297 {
 298         struct hda_bus_unsolicited *unsol;
 299
 300         if (bus->unsol) /* already initialized */
 301                 return 0;
 302
 303         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
 304         if (! unsol) {
 305                 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
 306                 return -ENOMEM;
 307         }
 308         unsol->workq = create_singlethread_workqueue("hda_codec");
 309         if (! unsol->workq) {
 310                 snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
 311                 kfree(unsol);
 312                 return -ENOMEM;
 313         }
 314         INIT_WORK(&unsol->work, process_unsol_events, bus);
 315         bus->unsol = unsol;
 316         return 0;
 317 }
 318
 319 /*
 320  * destructor
 321  */
 322 static void snd_hda_codec_free(struct hda_codec *codec);
 323
 324 static int snd_hda_bus_free(struct hda_bus *bus)
 325 {
 326         struct list_head *p, *n;
 327
 328         if (! bus)
 329                 return 0;
 330         if (bus->unsol) {
 331                 destroy_workqueue(bus->unsol->workq);
 332                 kfree(bus->unsol);
 333         }
 334         list_for_each_safe(p, n, &bus->codec_list) {
 335                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
 336                 snd_hda_codec_free(codec);
 337         }
 338         if (bus->ops.private_free)
 339                 bus->ops.private_free(bus);
 340         kfree(bus);
 341         return 0;
 342 }
 343
 344 static int snd_hda_bus_dev_free(struct snd_device *device)
 345 {
 346         struct hda_bus *bus = device->device_data;
 347         return snd_hda_bus_free(bus);
 348 }
 349
 350 /**
 351  * snd_hda_bus_new - create a HDA bus
 352  * @card: the card entry
 353  * @temp: the template for hda_bus information
 354  * @busp: the pointer to store the created bus instance
 355  *
 356  * Returns 0 if successful, or a negative error code.
 357  */
 358 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
 359                     struct hda_bus **busp)
 360 {
 361         struct hda_bus *bus;
 362         int err;
 363         static struct snd_device_ops dev_ops = {
 364                 .dev_free = snd_hda_bus_dev_free,
 365         };
 366
 367         snd_assert(temp, return -EINVAL);
 368         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
 369
 370         if (busp)
 371                 *busp = NULL;
 372
 373         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 374         if (bus == NULL) {
 375                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 376                 return -ENOMEM;
 377         }
 378
 379         bus->card = card;
 380         bus->private_data = temp->private_data;
 381         bus->pci = temp->pci;
 382         bus->modelname = temp->modelname;
 383         bus->ops = temp->ops;
 384
 385         mutex_init(&bus->cmd_mutex);
 386         INIT_LIST_HEAD(&bus->codec_list);
 387
 388         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
 389                 snd_hda_bus_free(bus);
 390                 return err;
 391         }
 392         if (busp)
 393                 *busp = bus;
 394         return 0;
 395 }
 396
 397 EXPORT_SYMBOL(snd_hda_bus_new);
 398
 399 /*
 400  * find a matching codec preset
 401  */
 402 static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
 403 {
 404         const struct hda_codec_preset **tbl, *preset;
 405
 406         for (tbl = hda_preset_tables; *tbl; tbl++) {
 407                 for (preset = *tbl; preset->id; preset++) {
 408                         u32 mask = preset->mask;
 409                         if (! mask)
 410                                 mask = ~0;
 411                         if (preset->id == (codec->vendor_id & mask))
 412                                 return preset;
 413                 }
 414         }
 415         return NULL;
 416 }
 417
 418 /*
 419  * snd_hda_get_codec_name - store the codec name
 420  */
 421 void snd_hda_get_codec_name(struct hda_codec *codec,
 422                             char *name, int namelen)
 423 {
 424         const struct hda_vendor_id *c;
 425         const char *vendor = NULL;
 426         u16 vendor_id = codec->vendor_id >> 16;
 427         char tmp[16];
 428
 429         for (c = hda_vendor_ids; c->id; c++) {
 430                 if (c->id == vendor_id) {
 431                         vendor = c->name;
 432                         break;
 433                 }
 434         }
 435         if (! vendor) {
 436                 sprintf(tmp, "Generic %04x", vendor_id);
 437                 vendor = tmp;
 438         }
 439         if (codec->preset && codec->preset->name)
 440                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 441         else
 442                 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
 443 }
 444
 445 /*
 446  * look for an AFG and MFG nodes
 447  */
 448 static void setup_fg_nodes(struct hda_codec *codec)
 449 {
 450         int i, total_nodes;
 451         hda_nid_t nid;
 452
 453         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 454         for (i = 0; i < total_nodes; i++, nid++) {
 455                 switch((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff)) {
 456                 case AC_GRP_AUDIO_FUNCTION:
 457                         codec->afg = nid;
 458                         break;
 459                 case AC_GRP_MODEM_FUNCTION:
 460                         codec->mfg = nid;
 461                         break;
 462                 default:
 463                         break;
 464                 }
 465         }
 466 }
 467
 468 /*
 469  * read widget caps for each widget and store in cache
 470  */
 471 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 472 {
 473         int i;
 474         hda_nid_t nid;
 475
 476         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 477                                                  &codec->start_nid);
 478         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 479         if (! codec->wcaps)
 480                 return -ENOMEM;
 481         nid = codec->start_nid;
 482         for (i = 0; i < codec->num_nodes; i++, nid++)
 483                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 484                                                      AC_PAR_AUDIO_WIDGET_CAP);
 485         return 0;
 486 }
 487
 488
 489 /*
 490  * codec destructor
 491  */
 492 static void snd_hda_codec_free(struct hda_codec *codec)
 493 {
 494         if (! codec)
 495                 return;
 496         list_del(&codec->list);
 497         codec->bus->caddr_tbl[codec->addr] = NULL;
 498         if (codec->patch_ops.free)
 499                 codec->patch_ops.free(codec);
 500         kfree(codec->amp_info);
 501         kfree(codec->wcaps);
 502         kfree(codec);
 503 }
 504
 505 static void init_amp_hash(struct hda_codec *codec);
 506
 507 /**
 508  * snd_hda_codec_new - create a HDA codec
 509  * @bus: the bus to assign
 510  * @codec_addr: the codec address
 511  * @codecp: the pointer to store the generated codec
 512  *
 513  * Returns 0 if successful, or a negative error code.
 514  */
 515 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 516                       struct hda_codec **codecp)
 517 {
 518         struct hda_codec *codec;
 519         char component[13];
 520         int err;
 521
 522         snd_assert(bus, return -EINVAL);
 523         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 524
 525         if (bus->caddr_tbl[codec_addr]) {
 526                 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
 527                 return -EBUSY;
 528         }
 529
 530         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 531         if (codec == NULL) {
 532                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 533                 return -ENOMEM;
 534         }
 535
 536         codec->bus = bus;
 537         codec->addr = codec_addr;
 538         mutex_init(&codec->spdif_mutex);
 539         init_amp_hash(codec);
 540
 541         list_add_tail(&codec->list, &bus->codec_list);
 542         bus->caddr_tbl[codec_addr] = codec;
 543
 544         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
 545         if (codec->vendor_id == -1)
 546                 /* read again, hopefully the access method was corrected
 547                  * in the last read...
 548                  */
 549                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 550                                                       AC_PAR_VENDOR_ID);
 551         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
 552         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
 553
 554         setup_fg_nodes(codec);
 555         if (! codec->afg && ! codec->mfg) {
 556                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 557                 snd_hda_codec_free(codec);
 558                 return -ENODEV;
 559         }
 560
 561         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 562                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 563                 snd_hda_codec_free(codec);
 564                 return -ENOMEM;
 565         }
 566
 567         if (! codec->subsystem_id) {
 568                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 569                 codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
 570                                                          AC_VERB_GET_SUBSYSTEM_ID,
 571                                                          0);
 572         }
 573
 574         codec->preset = find_codec_preset(codec);
 575         if (! *bus->card->mixername)
 576                 snd_hda_get_codec_name(codec, bus->card->mixername,
 577                                        sizeof(bus->card->mixername));
 578
 579         if (codec->preset && codec->preset->patch)
 580                 err = codec->preset->patch(codec);
 581         else
 582                 err = snd_hda_parse_generic_codec(codec);
 583         if (err < 0) {
 584                 snd_hda_codec_free(codec);
 585                 return err;
 586         }
 587
 588         if (codec->patch_ops.unsol_event)
 589                 init_unsol_queue(bus);
 590
 591         snd_hda_codec_proc_new(codec);
 592
 593         sprintf(component, "HDA:%08x", codec->vendor_id);
 594         snd_component_add(codec->bus->card, component);
 595
 596         if (codecp)
 597                 *codecp = codec;
 598         return 0;
 599 }
 600
 601 EXPORT_SYMBOL(snd_hda_codec_new);
 602
 603 /**
 604  * snd_hda_codec_setup_stream - set up the codec for streaming
 605  * @codec: the CODEC to set up
 606  * @nid: the NID to set up
 607  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 608  * @channel_id: channel id to pass, zero based.
 609  * @format: stream format.
 610  */
 611 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
 612                                 int channel_id, int format)
 613 {
 614         if (! nid)
 615                 return;
 616
 617         snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 618                     nid, stream_tag, channel_id, format);
 619         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 620                             (stream_tag << 4) | channel_id);
 621         msleep(1);
 622         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 623 }
 624
 625 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
 626
 627 /*
 628  * amp access functions
 629  */
 630
 631 /* FIXME: more better hash key? */
 632 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 633 #define INFO_AMP_CAPS   (1<<0)
 634 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 635
 636 /* initialize the hash table */
 637 static void init_amp_hash(struct hda_codec *codec)
 638 {
 639         memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
 640         codec->num_amp_entries = 0;
 641         codec->amp_info_size = 0;
 642         codec->amp_info = NULL;
 643 }
 644
 645 /* query the hash.  allocate an entry if not found. */
 646 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 647 {
 648         u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
 649         u16 cur = codec->amp_hash[idx];
 650         struct hda_amp_info *info;
 651
 652         while (cur != 0xffff) {
 653                 info = &codec->amp_info[cur];
 654                 if (info->key == key)
 655                         return info;
 656                 cur = info->next;
 657         }
 658
 659         /* add a new hash entry */
 660         if (codec->num_amp_entries >= codec->amp_info_size) {
 661                 /* reallocate the array */
 662                 int new_size = codec->amp_info_size + 64;
 663                 struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
 664                                                         GFP_KERNEL);
 665                 if (! new_info) {
 666                         snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
 667                         return NULL;
 668                 }
 669                 if (codec->amp_info) {
 670                         memcpy(new_info, codec->amp_info,
 671                                codec->amp_info_size * sizeof(struct hda_amp_info));
 672                         kfree(codec->amp_info);
 673                 }
 674                 codec->amp_info_size = new_size;
 675                 codec->amp_info = new_info;
 676         }
 677         cur = codec->num_amp_entries++;
 678         info = &codec->amp_info[cur];
 679         info->key = key;
 680         info->status = 0; /* not initialized yet */
 681         info->next = codec->amp_hash[idx];
 682         codec->amp_hash[idx] = cur;
 683
 684         return info;
 685 }
 686
 687 /*
 688  * query AMP capabilities for the given widget and direction
 689  */
 690 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 691 {
 692         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 693
 694         if (! info)
 695                 return 0;
 696         if (! (info->status & INFO_AMP_CAPS)) {
 697                 if (! (get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 698                         nid = codec->afg;
 699                 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
 700                                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 701                 info->status |= INFO_AMP_CAPS;
 702         }
 703         return info->amp_caps;
 704 }
 705
 706 /*
 707  * read the current volume to info
 708  * if the cache exists, read the cache value.
 709  */
 710 static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 711                          hda_nid_t nid, int ch, int direction, int index)
 712 {
 713         u32 val, parm;
 714
 715         if (info->status & INFO_AMP_VOL(ch))
 716                 return info->vol[ch];
 717
 718         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 719         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 720         parm |= index;
 721         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
 722         info->vol[ch] = val & 0xff;
 723         info->status |= INFO_AMP_VOL(ch);
 724         return info->vol[ch];
 725 }
 726
 727 /*
 728  * write the current volume in info to the h/w and update the cache
 729  */
 730 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 731                          hda_nid_t nid, int ch, int direction, int index, int val)
 732 {
 733         u32 parm;
 734
 735         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
 736         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
 737         parm |= index << AC_AMP_SET_INDEX_SHIFT;
 738         parm |= val;
 739         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
 740         info->vol[ch] = val;
 741 }
 742
 743 /*
 744  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 745  */
 746 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 747                            int direction, int index)
 748 {
 749         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
 750         if (! info)
 751                 return 0;
 752         return get_vol_mute(codec, info, nid, ch, direction, index);
 753 }
 754
 755 /*
 756  * update the AMP value, mask = bit mask to set, val = the value
 757  */
 758 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 759                              int direction, int idx, int mask, int val)
 760 {
 761         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
 762
 763         if (! info)
 764                 return 0;
 765         val &= mask;
 766         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
 767         if (info->vol[ch] == val && ! codec->in_resume)
 768                 return 0;
 769         put_vol_mute(codec, info, nid, ch, direction, idx, val);
 770         return 1;
 771 }
 772
 773
 774 /*
 775  * AMP control callbacks
 776  */
 777 /* retrieve parameters from private_value */
 778 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 779 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 780 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 781 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 782
 783 /* volume */
 784 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 785 {
 786         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 787         u16 nid = get_amp_nid(kcontrol);
 788         u8 chs = get_amp_channels(kcontrol);
 789         int dir = get_amp_direction(kcontrol);
 790         u32 caps;
 791
 792         caps = query_amp_caps(codec, nid, dir);
 793         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
 794         if (! caps) {
 795                 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
 796                 return -EINVAL;
 797         }
 798         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 799         uinfo->count = chs == 3 ? 2 : 1;
 800         uinfo->value.integer.min = 0;
 801         uinfo->value.integer.max = caps;
 802         return 0;
 803 }
 804
 805 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 806 {
 807         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 808         hda_nid_t nid = get_amp_nid(kcontrol);
 809         int chs = get_amp_channels(kcontrol);
 810         int dir = get_amp_direction(kcontrol);
 811         int idx = get_amp_index(kcontrol);
 812         long *valp = ucontrol->value.integer.value;
 813
 814         if (chs & 1)
 815                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
 816         if (chs & 2)
 817                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
 818         return 0;
 819 }
 820
 821 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 822 {
 823         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 824         hda_nid_t nid = get_amp_nid(kcontrol);
 825         int chs = get_amp_channels(kcontrol);
 826         int dir = get_amp_direction(kcontrol);
 827         int idx = get_amp_index(kcontrol);
 828         long *valp = ucontrol->value.integer.value;
 829         int change = 0;
 830
 831         if (chs & 1) {
 832                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 833                                                   0x7f, *valp);
 834                 valp++;
 835         }
 836         if (chs & 2)
 837                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 838                                                    0x7f, *valp);
 839         return change;
 840 }
 841
 842 /* switch */
 843 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 844 {
 845         int chs = get_amp_channels(kcontrol);
 846
 847         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 848         uinfo->count = chs == 3 ? 2 : 1;
 849         uinfo->value.integer.min = 0;
 850         uinfo->value.integer.max = 1;
 851         return 0;
 852 }
 853
 854 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 855 {
 856         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 857         hda_nid_t nid = get_amp_nid(kcontrol);
 858         int chs = get_amp_channels(kcontrol);
 859         int dir = get_amp_direction(kcontrol);
 860         int idx = get_amp_index(kcontrol);
 861         long *valp = ucontrol->value.integer.value;
 862
 863         if (chs & 1)
 864                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
 865         if (chs & 2)
 866                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
 867         return 0;
 868 }
 869
 870 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 871 {
 872         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 873         hda_nid_t nid = get_amp_nid(kcontrol);
 874         int chs = get_amp_channels(kcontrol);
 875         int dir = get_amp_direction(kcontrol);
 876         int idx = get_amp_index(kcontrol);
 877         long *valp = ucontrol->value.integer.value;
 878         int change = 0;
 879
 880         if (chs & 1) {
 881                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 882                                                   0x80, *valp ? 0 : 0x80);
 883                 valp++;
 884         }
 885         if (chs & 2)
 886                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 887                                                    0x80, *valp ? 0 : 0x80);
 888
 889         return change;
 890 }
 891
 892 /*
 893  * bound volume controls
 894  *
 895  * bind multiple volumes (# indices, from 0)
 896  */
 897
 898 #define AMP_VAL_IDX_SHIFT       19
 899 #define AMP_VAL_IDX_MASK        (0x0f<<19)
 900
 901 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 902 {
 903         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 904         unsigned long pval;
 905         int err;
 906
 907         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 908         pval = kcontrol->private_value;
 909         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
 910         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
 911         kcontrol->private_value = pval;
 912         mutex_unlock(&codec->spdif_mutex);
 913         return err;
 914 }
 915
 916 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 917 {
 918         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 919         unsigned long pval;
 920         int i, indices, err = 0, change = 0;
 921
 922         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 923         pval = kcontrol->private_value;
 924         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
 925         for (i = 0; i < indices; i++) {
 926                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
 927                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
 928                 if (err < 0)
 929                         break;
 930                 change |= err;
 931         }
 932         kcontrol->private_value = pval;
 933         mutex_unlock(&codec->spdif_mutex);
 934         return err < 0 ? err : change;
 935 }
 936
 937 /*
 938  * SPDIF out controls
 939  */
 940
 941 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 942 {
 943         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 944         uinfo->count = 1;
 945         return 0;
 946 }
 947
 948 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 949 {
 950         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 951                                            IEC958_AES0_NONAUDIO |
 952                                            IEC958_AES0_CON_EMPHASIS_5015 |
 953                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 954         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 955                                            IEC958_AES1_CON_ORIGINAL;
 956         return 0;
 957 }
 958
 959 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 960 {
 961         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 962                                            IEC958_AES0_NONAUDIO |
 963                                            IEC958_AES0_PRO_EMPHASIS_5015;
 964         return 0;
 965 }
 966
 967 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 968 {
 969         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 970
 971         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
 972         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
 973         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
 974         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
 975
 976         return 0;
 977 }
 978
 979 /* convert from SPDIF status bits to HDA SPDIF bits
 980  * bit 0 (DigEn) is always set zero (to be filled later)
 981  */
 982 static unsigned short convert_from_spdif_status(unsigned int sbits)
 983 {
 984         unsigned short val = 0;
 985
 986         if (sbits & IEC958_AES0_PROFESSIONAL)
 987                 val |= 1 << 6;
 988         if (sbits & IEC958_AES0_NONAUDIO)
 989                 val |= 1 << 5;
 990         if (sbits & IEC958_AES0_PROFESSIONAL) {
 991                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 992                         val |= 1 << 3;
 993         } else {
 994                 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 995                         val |= 1 << 3;
 996                 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
 997                         val |= 1 << 4;
 998                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
 999                         val |= 1 << 7;
1000                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1001         }
1002         return val;
1003 }
1004
1005 /* convert to SPDIF status bits from HDA SPDIF bits
1006  */
1007 static unsigned int convert_to_spdif_status(unsigned short val)
1008 {
1009         unsigned int sbits = 0;
1010
1011         if (val & (1 << 5))
1012                 sbits |= IEC958_AES0_NONAUDIO;
1013         if (val & (1 << 6))
1014                 sbits |= IEC958_AES0_PROFESSIONAL;
1015         if (sbits & IEC958_AES0_PROFESSIONAL) {
1016                 if (sbits & (1 << 3))
1017                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1018         } else {
1019                 if (val & (1 << 3))
1020                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1021                 if (! (val & (1 << 4)))
1022                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1023                 if (val & (1 << 7))
1024                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1025                 sbits |= val & (0x7f << 8);
1026         }
1027         return sbits;
1028 }
1029
1030 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1031 {
1032         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1033         hda_nid_t nid = kcontrol->private_value;
1034         unsigned short val;
1035         int change;
1036
1037         mutex_lock(&codec->spdif_mutex);
1038         codec->spdif_status = ucontrol->value.iec958.status[0] |
1039                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1040                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1041                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1042         val = convert_from_spdif_status(codec->spdif_status);
1043         val |= codec->spdif_ctls & 1;
1044         change = codec->spdif_ctls != val;
1045         codec->spdif_ctls = val;
1046
1047         if (change || codec->in_resume) {
1048                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1049                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
1050         }
1051
1052         mutex_unlock(&codec->spdif_mutex);
1053         return change;
1054 }
1055
1056 static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1057 {
1058         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1059         uinfo->count = 1;
1060         uinfo->value.integer.min = 0;
1061         uinfo->value.integer.max = 1;
1062         return 0;
1063 }
1064
1065 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1066 {
1067         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1068
1069         ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
1070         return 0;
1071 }
1072
1073 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1074 {
1075         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1076         hda_nid_t nid = kcontrol->private_value;
1077         unsigned short val;
1078         int change;
1079
1080         mutex_lock(&codec->spdif_mutex);
1081         val = codec->spdif_ctls & ~1;
1082         if (ucontrol->value.integer.value[0])
1083                 val |= 1;
1084         change = codec->spdif_ctls != val;
1085         if (change || codec->in_resume) {
1086                 codec->spdif_ctls = val;
1087                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1088                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
1089                                     AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
1090                                     AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
1091         }
1092         mutex_unlock(&codec->spdif_mutex);
1093         return change;
1094 }
1095
1096 static struct snd_kcontrol_new dig_mixes[] = {
1097         {
1098                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1099                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1100                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1101                 .info = snd_hda_spdif_mask_info,
1102                 .get = snd_hda_spdif_cmask_get,
1103         },
1104         {
1105                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1106                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1107                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1108                 .info = snd_hda_spdif_mask_info,
1109                 .get = snd_hda_spdif_pmask_get,
1110         },
1111         {
1112                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1113                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1114                 .info = snd_hda_spdif_mask_info,
1115                 .get = snd_hda_spdif_default_get,
1116                 .put = snd_hda_spdif_default_put,
1117         },
1118         {
1119                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1120                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1121                 .info = snd_hda_spdif_out_switch_info,
1122                 .get = snd_hda_spdif_out_switch_get,
1123                 .put = snd_hda_spdif_out_switch_put,
1124         },
1125         { } /* end */
1126 };
1127
1128 /**
1129  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1130  * @codec: the HDA codec
1131  * @nid: audio out widget NID
1132  *
1133  * Creates controls related with the SPDIF output.
1134  * Called from each patch supporting the SPDIF out.
1135  *
1136  * Returns 0 if successful, or a negative error code.
1137  */
1138 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1139 {
1140         int err;
1141         struct snd_kcontrol *kctl;
1142         struct snd_kcontrol_new *dig_mix;
1143
1144         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1145                 kctl = snd_ctl_new1(dig_mix, codec);
1146                 kctl->private_value = nid;
1147                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1148                         return err;
1149         }
1150         codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1151         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1152         return 0;
1153 }
1154
1155 /*
1156  * SPDIF input
1157  */
1158
1159 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1160
1161 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1162 {
1163         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1164
1165         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1166         return 0;
1167 }
1168
1169 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1170 {
1171         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1172         hda_nid_t nid = kcontrol->private_value;
1173         unsigned int val = !!ucontrol->value.integer.value[0];
1174         int change;
1175
1176         mutex_lock(&codec->spdif_mutex);
1177         change = codec->spdif_in_enable != val;
1178         if (change || codec->in_resume) {
1179                 codec->spdif_in_enable = val;
1180                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1181         }
1182         mutex_unlock(&codec->spdif_mutex);
1183         return change;
1184 }
1185
1186 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1187 {
1188         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1189         hda_nid_t nid = kcontrol->private_value;
1190         unsigned short val;
1191         unsigned int sbits;
1192
1193         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1194         sbits = convert_to_spdif_status(val);
1195         ucontrol->value.iec958.status[0] = sbits;
1196         ucontrol->value.iec958.status[1] = sbits >> 8;
1197         ucontrol->value.iec958.status[2] = sbits >> 16;
1198         ucontrol->value.iec958.status[3] = sbits >> 24;
1199         return 0;
1200 }
1201
1202 static struct snd_kcontrol_new dig_in_ctls[] = {
1203         {
1204                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1205                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1206                 .info = snd_hda_spdif_in_switch_info,
1207                 .get = snd_hda_spdif_in_switch_get,
1208                 .put = snd_hda_spdif_in_switch_put,
1209         },
1210         {
1211                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1212                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1213                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1214                 .info = snd_hda_spdif_mask_info,
1215                 .get = snd_hda_spdif_in_status_get,
1216         },
1217         { } /* end */
1218 };
1219
1220 /**
1221  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1222  * @codec: the HDA codec
1223  * @nid: audio in widget NID
1224  *
1225  * Creates controls related with the SPDIF input.
1226  * Called from each patch supporting the SPDIF in.
1227  *
1228  * Returns 0 if successful, or a negative error code.
1229  */
1230 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1231 {
1232         int err;
1233         struct snd_kcontrol *kctl;
1234         struct snd_kcontrol_new *dig_mix;
1235
1236         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1237                 kctl = snd_ctl_new1(dig_mix, codec);
1238                 kctl->private_value = nid;
1239                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1240                         return err;
1241         }
1242         codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1243         return 0;
1244 }
1245
1246
1247 /*
1248  * set power state of the codec
1249  */
1250 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1251                                 unsigned int power_state)
1252 {
1253         hda_nid_t nid, nid_start;
1254         int nodes;
1255
1256         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1257                             power_state);
1258
1259         nodes = snd_hda_get_sub_nodes(codec, fg, &nid_start);
1260         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1261                 if (get_wcaps(codec, nid) & AC_WCAP_POWER)
1262                         snd_hda_codec_write(codec, nid, 0,
1263                                             AC_VERB_SET_POWER_STATE,
1264                                             power_state);
1265         }
1266
1267         if (power_state == AC_PWRST_D0)
1268                 msleep(10);
1269 }
1270
1271
1272 /**
1273  * snd_hda_build_controls - build mixer controls
1274  * @bus: the BUS
1275  *
1276  * Creates mixer controls for each codec included in the bus.
1277  *
1278  * Returns 0 if successful, otherwise a negative error code.
1279  */
1280 int snd_hda_build_controls(struct hda_bus *bus)
1281 {
1282         struct list_head *p;
1283
1284         /* build controls */
1285         list_for_each(p, &bus->codec_list) {
1286                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1287                 int err;
1288                 if (! codec->patch_ops.build_controls)
1289                         continue;
1290                 err = codec->patch_ops.build_controls(codec);
1291                 if (err < 0)
1292                         return err;
1293         }
1294
1295         /* initialize */
1296         list_for_each(p, &bus->codec_list) {
1297                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1298                 int err;
1299                 hda_set_power_state(codec,
1300                                     codec->afg ? codec->afg : codec->mfg,
1301                                     AC_PWRST_D0);
1302                 if (! codec->patch_ops.init)
1303                         continue;
1304                 err = codec->patch_ops.init(codec);
1305                 if (err < 0)
1306                         return err;
1307         }
1308         return 0;
1309 }
1310
1311 EXPORT_SYMBOL(snd_hda_build_controls);
1312
1313 /*
1314  * stream formats
1315  */
1316 struct hda_rate_tbl {
1317         unsigned int hz;
1318         unsigned int alsa_bits;
1319         unsigned int hda_fmt;
1320 };
1321
1322 static struct hda_rate_tbl rate_bits[] = {
1323         /* rate in Hz, ALSA rate bitmask, HDA format value */
1324
1325         /* autodetected value used in snd_hda_query_supported_pcm */
1326         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1327         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1328         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1329         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1330         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1331         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1332         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1333         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1334         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1335         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1336         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1337
1338         /* not autodetected value */
1339         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
1340
1341         { 0 } /* terminator */
1342 };
1343
1344 /**
1345  * snd_hda_calc_stream_format - calculate format bitset
1346  * @rate: the sample rate
1347  * @channels: the number of channels
1348  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1349  * @maxbps: the max. bps
1350  *
1351  * Calculate the format bitset from the given rate, channels and th PCM format.
1352  *
1353  * Return zero if invalid.
1354  */
1355 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1356                                         unsigned int channels,
1357                                         unsigned int format,
1358                                         unsigned int maxbps)
1359 {
1360         int i;
1361         unsigned int val = 0;
1362
1363         for (i = 0; rate_bits[i].hz; i++)
1364                 if (rate_bits[i].hz == rate) {
1365                         val = rate_bits[i].hda_fmt;
1366                         break;
1367                 }
1368         if (! rate_bits[i].hz) {
1369                 snd_printdd("invalid rate %d\n", rate);
1370                 return 0;
1371         }
1372
1373         if (channels == 0 || channels > 8) {
1374                 snd_printdd("invalid channels %d\n", channels);
1375                 return 0;
1376         }
1377         val |= channels - 1;
1378
1379         switch (snd_pcm_format_width(format)) {
1380         case 8:  val |= 0x00; break;
1381         case 16: val |= 0x10; break;
1382         case 20:
1383         case 24:
1384         case 32:
1385                 if (maxbps >= 32)
1386                         val |= 0x40;
1387                 else if (maxbps >= 24)
1388                         val |= 0x30;
1389                 else
1390                         val |= 0x20;
1391                 break;
1392         default:
1393                 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1394                 return 0;
1395         }
1396
1397         return val;
1398 }
1399
1400 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1401
1402 /**
1403  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1404  * @codec: the HDA codec
1405  * @nid: NID to query
1406  * @ratesp: the pointer to store the detected rate bitflags
1407  * @formatsp: the pointer to store the detected formats
1408  * @bpsp: the pointer to store the detected format widths
1409  *
1410  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1411  * or @bsps argument is ignored.
1412  *
1413  * Returns 0 if successful, otherwise a negative error code.
1414  */
1415 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1416                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1417 {
1418         int i;
1419         unsigned int val, streams;
1420
1421         val = 0;
1422         if (nid != codec->afg &&
1423             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1424                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1425                 if (val == -1)
1426                         return -EIO;
1427         }
1428         if (! val)
1429                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1430
1431         if (ratesp) {
1432                 u32 rates = 0;
1433                 for (i = 0; rate_bits[i].hz; i++) {
1434                         if (val & (1 << i))
1435                                 rates |= rate_bits[i].alsa_bits;
1436                 }
1437                 *ratesp = rates;
1438         }
1439
1440         if (formatsp || bpsp) {
1441                 u64 formats = 0;
1442                 unsigned int bps;
1443                 unsigned int wcaps;
1444
1445                 wcaps = get_wcaps(codec, nid);
1446                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1447                 if (streams == -1)
1448                         return -EIO;
1449                 if (! streams) {
1450                         streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1451                         if (streams == -1)
1452                                 return -EIO;
1453                 }
1454
1455                 bps = 0;
1456                 if (streams & AC_SUPFMT_PCM) {
1457                         if (val & AC_SUPPCM_BITS_8) {
1458                                 formats |= SNDRV_PCM_FMTBIT_U8;
1459                                 bps = 8;
1460                         }
1461                         if (val & AC_SUPPCM_BITS_16) {
1462                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1463                                 bps = 16;
1464                         }
1465                         if (wcaps & AC_WCAP_DIGITAL) {
1466                                 if (val & AC_SUPPCM_BITS_32)
1467                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1468                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1469                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1470                                 if (val & AC_SUPPCM_BITS_24)
1471                                         bps = 24;
1472                                 else if (val & AC_SUPPCM_BITS_20)
1473                                         bps = 20;
1474                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1475                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1476                                 if (val & AC_SUPPCM_BITS_32)
1477                                         bps = 32;
1478                                 else if (val & AC_SUPPCM_BITS_20)
1479                                         bps = 20;
1480                                 else if (val & AC_SUPPCM_BITS_24)
1481                                         bps = 24;
1482                         }
1483                 }
1484                 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1485                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1486                         bps = 32;
1487                 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1488                         /* temporary hack: we have still no proper support
1489                          * for the direct AC3 stream...
1490                          */
1491                         formats |= SNDRV_PCM_FMTBIT_U8;
1492                         bps = 8;
1493                 }
1494                 if (formatsp)
1495                         *formatsp = formats;
1496                 if (bpsp)
1497                         *bpsp = bps;
1498         }
1499
1500         return 0;
1501 }
1502
1503 /**
1504  * snd_hda_is_supported_format - check whether the given node supports the format val
1505  *
1506  * Returns 1 if supported, 0 if not.
1507  */
1508 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1509                                 unsigned int format)
1510 {
1511         int i;
1512         unsigned int val = 0, rate, stream;
1513
1514         if (nid != codec->afg &&
1515             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1516                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1517                 if (val == -1)
1518                         return 0;
1519         }
1520         if (! val) {
1521                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1522                 if (val == -1)
1523                         return 0;
1524         }
1525
1526         rate = format & 0xff00;
1527         for (i = 0; rate_bits[i].hz; i++)
1528                 if (rate_bits[i].hda_fmt == rate) {
1529                         if (val & (1 << i))
1530                                 break;
1531                         return 0;
1532                 }
1533         if (! rate_bits[i].hz)
1534                 return 0;
1535
1536         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1537         if (stream == -1)
1538                 return 0;
1539         if (! stream && nid != codec->afg)
1540                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1541         if (! stream || stream == -1)
1542                 return 0;
1543
1544         if (stream & AC_SUPFMT_PCM) {
1545                 switch (format & 0xf0) {
1546                 case 0x00:
1547                         if (! (val & AC_SUPPCM_BITS_8))
1548                                 return 0;
1549                         break;
1550                 case 0x10:
1551                         if (! (val & AC_SUPPCM_BITS_16))
1552                                 return 0;
1553                         break;
1554                 case 0x20:
1555                         if (! (val & AC_SUPPCM_BITS_20))
1556                                 return 0;
1557                         break;
1558                 case 0x30:
1559                         if (! (val & AC_SUPPCM_BITS_24))
1560                                 return 0;
1561                         break;
1562                 case 0x40:
1563                         if (! (val & AC_SUPPCM_BITS_32))
1564                                 return 0;
1565                         break;
1566                 default:
1567                         return 0;
1568                 }
1569         } else {
1570                 /* FIXME: check for float32 and AC3? */
1571         }
1572
1573         return 1;
1574 }
1575
1576 /*
1577  * PCM stuff
1578  */
1579 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1580                                       struct hda_codec *codec,
1581                                       struct snd_pcm_substream *substream)
1582 {
1583         return 0;
1584 }
1585
1586 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1587                                    struct hda_codec *codec,
1588                                    unsigned int stream_tag,
1589                                    unsigned int format,
1590                                    struct snd_pcm_substream *substream)
1591 {
1592         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1593         return 0;
1594 }
1595
1596 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1597                                    struct hda_codec *codec,
1598                                    struct snd_pcm_substream *substream)
1599 {
1600         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1601         return 0;
1602 }
1603
1604 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1605 {
1606         if (info->nid) {
1607                 /* query support PCM information from the given NID */
1608                 if (! info->rates || ! info->formats)
1609                         snd_hda_query_supported_pcm(codec, info->nid,
1610                                                     info->rates ? NULL : &info->rates,
1611                                                     info->formats ? NULL : &info->formats,
1612                                                     info->maxbps ? NULL : &info->maxbps);
1613         }
1614         if (info->ops.open == NULL)
1615                 info->ops.open = hda_pcm_default_open_close;
1616         if (info->ops.close == NULL)
1617                 info->ops.close = hda_pcm_default_open_close;
1618         if (info->ops.prepare == NULL) {
1619                 snd_assert(info->nid, return -EINVAL);
1620                 info->ops.prepare = hda_pcm_default_prepare;
1621         }
1622         if (info->ops.cleanup == NULL) {
1623                 snd_assert(info->nid, return -EINVAL);
1624                 info->ops.cleanup = hda_pcm_default_cleanup;
1625         }
1626         return 0;
1627 }
1628
1629 /**
1630  * snd_hda_build_pcms - build PCM information
1631  * @bus: the BUS
1632  *
1633  * Create PCM information for each codec included in the bus.
1634  *
1635  * The build_pcms codec patch is requested to set up codec->num_pcms and
1636  * codec->pcm_info properly.  The array is referred by the top-level driver
1637  * to create its PCM instances.
1638  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1639  * callback.
1640  *
1641  * At least, substreams, channels_min and channels_max must be filled for
1642  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1643  * When rates and/or formats are zero, the supported values are queried
1644  * from the given nid.  The nid is used also by the default ops.prepare
1645  * and ops.cleanup callbacks.
1646  *
1647  * The driver needs to call ops.open in its open callback.  Similarly,
1648  * ops.close is supposed to be called in the close callback.
1649  * ops.prepare should be called in the prepare or hw_params callback
1650  * with the proper parameters for set up.
1651  * ops.cleanup should be called in hw_free for clean up of streams.
1652  *
1653  * This function returns 0 if successfull, or a negative error code.
1654  */
1655 int snd_hda_build_pcms(struct hda_bus *bus)
1656 {
1657         struct list_head *p;
1658
1659         list_for_each(p, &bus->codec_list) {
1660                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1661                 unsigned int pcm, s;
1662                 int err;
1663                 if (! codec->patch_ops.build_pcms)
1664                         continue;
1665                 err = codec->patch_ops.build_pcms(codec);
1666                 if (err < 0)
1667                         return err;
1668                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1669                         for (s = 0; s < 2; s++) {
1670                                 struct hda_pcm_stream *info;
1671                                 info = &codec->pcm_info[pcm].stream[s];
1672                                 if (! info->substreams)
1673                                         continue;
1674                                 err = set_pcm_default_values(codec, info);
1675                                 if (err < 0)
1676                                         return err;
1677                         }
1678                 }
1679         }
1680         return 0;
1681 }
1682
1683 EXPORT_SYMBOL(snd_hda_build_pcms);
1684
1685 /**
1686  * snd_hda_check_board_config - compare the current codec with the config table
1687  * @codec: the HDA codec
1688  * @tbl: configuration table, terminated by null entries
1689  *
1690  * Compares the modelname or PCI subsystem id of the current codec with the
1691  * given configuration table.  If a matching entry is found, returns its
1692  * config value (supposed to be 0 or positive).
1693  *
1694  * If no entries are matching, the function returns a negative value.
1695  */
1696 int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1697 {
1698         const struct hda_board_config *c;
1699
1700         if (codec->bus->modelname) {
1701                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1702                         if (c->modelname &&
1703                             ! strcmp(codec->bus->modelname, c->modelname)) {
1704                                 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1705                                 return c->config;
1706                         }
1707                 }
1708         }
1709
1710         if (codec->bus->pci) {
1711                 u16 subsystem_vendor, subsystem_device;
1712                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1713                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
1714                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1715                         if (c->pci_subvendor == subsystem_vendor &&
1716                             (! c->pci_subdevice /* all match */||
1717                              (c->pci_subdevice == subsystem_device))) {
1718                                 snd_printdd(KERN_INFO "hda_codec: PCI %x:%x, codec config %d is selected\n",
1719                                             subsystem_vendor, subsystem_device, c->config);
1720                                 return c->config;
1721                         }
1722                 }
1723         }
1724         return -1;
1725 }
1726
1727 /**
1728  * snd_hda_add_new_ctls - create controls from the array
1729  * @codec: the HDA codec
1730  * @knew: the array of struct snd_kcontrol_new
1731  *
1732  * This helper function creates and add new controls in the given array.
1733  * The array must be terminated with an empty entry as terminator.
1734  *
1735  * Returns 0 if successful, or a negative error code.
1736  */
1737 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
1738 {
1739         int err;
1740
1741         for (; knew->name; knew++) {
1742                 struct snd_kcontrol *kctl;
1743                 kctl = snd_ctl_new1(knew, codec);
1744                 if (! kctl)
1745                         return -ENOMEM;
1746                 err = snd_ctl_add(codec->bus->card, kctl);
1747                 if (err < 0) {
1748                         if (! codec->addr)
1749                                 return err;
1750                         kctl = snd_ctl_new1(knew, codec);
1751                         if (! kctl)
1752                                 return -ENOMEM;
1753                         kctl->id.device = codec->addr;
1754                         if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1755                                 return err;
1756                 }
1757         }
1758         return 0;
1759 }
1760
1761
1762 /*
1763  * Channel mode helper
1764  */
1765 int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinfo,
1766                          const struct hda_channel_mode *chmode, int num_chmodes)
1767 {
1768         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1769         uinfo->count = 1;
1770         uinfo->value.enumerated.items = num_chmodes;
1771         if (uinfo->value.enumerated.item >= num_chmodes)
1772                 uinfo->value.enumerated.item = num_chmodes - 1;
1773         sprintf(uinfo->value.enumerated.name, "%dch",
1774                 chmode[uinfo->value.enumerated.item].channels);
1775         return 0;
1776 }
1777
1778 int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1779                         const struct hda_channel_mode *chmode, int num_chmodes,
1780                         int max_channels)
1781 {
1782         int i;
1783
1784         for (i = 0; i < num_chmodes; i++) {
1785                 if (max_channels == chmode[i].channels) {
1786                         ucontrol->value.enumerated.item[0] = i;
1787                         break;
1788                 }
1789         }
1790         return 0;
1791 }
1792
1793 int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1794                         const struct hda_channel_mode *chmode, int num_chmodes,
1795                         int *max_channelsp)
1796 {
1797         unsigned int mode;
1798
1799         mode = ucontrol->value.enumerated.item[0];
1800         snd_assert(mode < num_chmodes, return -EINVAL);
1801         if (*max_channelsp == chmode[mode].channels && ! codec->in_resume)
1802                 return 0;
1803         /* change the current channel setting */
1804         *max_channelsp = chmode[mode].channels;
1805         if (chmode[mode].sequence)
1806                 snd_hda_sequence_write(codec, chmode[mode].sequence);
1807         return 1;
1808 }
1809
1810 /*
1811  * input MUX helper
1812  */
1813 int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo)
1814 {
1815         unsigned int index;
1816
1817         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1818         uinfo->count = 1;
1819         uinfo->value.enumerated.items = imux->num_items;
1820         index = uinfo->value.enumerated.item;
1821         if (index >= imux->num_items)
1822                 index = imux->num_items - 1;
1823         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1824         return 0;
1825 }
1826
1827 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1828                           struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
1829                           unsigned int *cur_val)
1830 {
1831         unsigned int idx;
1832
1833         idx = ucontrol->value.enumerated.item[0];
1834         if (idx >= imux->num_items)
1835                 idx = imux->num_items - 1;
1836         if (*cur_val == idx && ! codec->in_resume)
1837                 return 0;
1838         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1839                             imux->items[idx].index);
1840         *cur_val = idx;
1841         return 1;
1842 }
1843
1844
1845 /*
1846  * Multi-channel / digital-out PCM helper functions
1847  */
1848
1849 /*
1850  * open the digital out in the exclusive mode
1851  */
1852 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1853 {
1854         mutex_lock(&codec->spdif_mutex);
1855         if (mout->dig_out_used) {
1856                 mutex_unlock(&codec->spdif_mutex);
1857                 return -EBUSY; /* already being used */
1858         }
1859         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1860         mutex_unlock(&codec->spdif_mutex);
1861         return 0;
1862 }
1863
1864 /*
1865  * release the digital out
1866  */
1867 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1868 {
1869         mutex_lock(&codec->spdif_mutex);
1870         mout->dig_out_used = 0;
1871         mutex_unlock(&codec->spdif_mutex);
1872         return 0;
1873 }
1874
1875 /*
1876  * set up more restrictions for analog out
1877  */
1878 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1879                                   struct snd_pcm_substream *substream)
1880 {
1881         substream->runtime->hw.channels_max = mout->max_channels;
1882         return snd_pcm_hw_constraint_step(substream->runtime, 0,
1883                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1884 }
1885
1886 /*
1887  * set up the i/o for analog out
1888  * when the digital out is available, copy the front out to digital out, too.
1889  */
1890 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1891                                      unsigned int stream_tag,
1892                                      unsigned int format,
1893                                      struct snd_pcm_substream *substream)
1894 {
1895         hda_nid_t *nids = mout->dac_nids;
1896         int chs = substream->runtime->channels;
1897         int i;
1898
1899         mutex_lock(&codec->spdif_mutex);
1900         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1901                 if (chs == 2 &&
1902                     snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1903                     ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1904                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1905                         /* setup digital receiver */
1906                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1907                                                    stream_tag, 0, format);
1908                 } else {
1909                         mout->dig_out_used = 0;
1910                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1911                 }
1912         }
1913         mutex_unlock(&codec->spdif_mutex);
1914
1915         /* front */
1916         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1917         if (mout->hp_nid)
1918                 /* headphone out will just decode front left/right (stereo) */
1919                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1920         /* extra outputs copied from front */
1921         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1922                 if (mout->extra_out_nid[i])
1923                         snd_hda_codec_setup_stream(codec,
1924                                                    mout->extra_out_nid[i],
1925                                                    stream_tag, 0, format);
1926
1927         /* surrounds */
1928         for (i = 1; i < mout->num_dacs; i++) {
1929                 if (chs >= (i + 1) * 2) /* independent out */
1930                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1931                                                    format);
1932                 else /* copy front */
1933                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1934                                                    format);
1935         }
1936         return 0;
1937 }
1938
1939 /*
1940  * clean up the setting for analog out
1941  */
1942 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1943 {
1944         hda_nid_t *nids = mout->dac_nids;
1945         int i;
1946
1947         for (i = 0; i < mout->num_dacs; i++)
1948                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1949         if (mout->hp_nid)
1950                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1951         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1952                 if (mout->extra_out_nid[i])
1953                         snd_hda_codec_setup_stream(codec,
1954                                                    mout->extra_out_nid[i],
1955                                                    0, 0, 0);
1956         mutex_lock(&codec->spdif_mutex);
1957         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1958                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1959                 mout->dig_out_used = 0;
1960         }
1961         mutex_unlock(&codec->spdif_mutex);
1962         return 0;
1963 }
1964
1965 /*
1966  * Helper for automatic ping configuration
1967  */
1968
1969 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
1970 {
1971         for (; *list; list++)
1972                 if (*list == nid)
1973                         return 1;
1974         return 0;
1975 }
1976
1977 /*
1978  * Parse all pin widgets and store the useful pin nids to cfg
1979  *
1980  * The number of line-outs or any primary output is stored in line_outs,
1981  * and the corresponding output pins are assigned to line_out_pins[],
1982  * in the order of front, rear, CLFE, side, ...
1983  *
1984  * If more extra outputs (speaker and headphone) are found, the pins are
1985  * assisnged to hp_pin and speaker_pins[], respectively.  If no line-out jack
1986  * is detected, one of speaker of HP pins is assigned as the primary
1987  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
1988  * if any analog output exists.
1989  *
1990  * The analog input pins are assigned to input_pins array.
1991  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
1992  * respectively.
1993  */
1994 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg,
1995                                  hda_nid_t *ignore_nids)
1996 {
1997         hda_nid_t nid, nid_start;
1998         int i, j, nodes;
1999         short seq, assoc_line_out, sequences[ARRAY_SIZE(cfg->line_out_pins)];
2000
2001         memset(cfg, 0, sizeof(*cfg));
2002
2003         memset(sequences, 0, sizeof(sequences));
2004         assoc_line_out = 0;
2005
2006         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2007         for (nid = nid_start; nid < nodes + nid_start; nid++) {
2008                 unsigned int wid_caps = get_wcaps(codec, nid);
2009                 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2010                 unsigned int def_conf;
2011                 short assoc, loc;
2012
2013                 /* read all default configuration for pin complex */
2014                 if (wid_type != AC_WID_PIN)
2015                         continue;
2016                 /* ignore the given nids (e.g. pc-beep returns error) */
2017                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2018                         continue;
2019
2020                 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
2021                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2022                         continue;
2023                 loc = get_defcfg_location(def_conf);
2024                 switch (get_defcfg_device(def_conf)) {
2025                 case AC_JACK_LINE_OUT:
2026                         seq = get_defcfg_sequence(def_conf);
2027                         assoc = get_defcfg_association(def_conf);
2028                         if (! assoc)
2029                                 continue;
2030                         if (! assoc_line_out)
2031                                 assoc_line_out = assoc;
2032                         else if (assoc_line_out != assoc)
2033                                 continue;
2034                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2035                                 continue;
2036                         cfg->line_out_pins[cfg->line_outs] = nid;
2037                         sequences[cfg->line_outs] = seq;
2038                         cfg->line_outs++;
2039                         break;
2040                 case AC_JACK_SPEAKER:
2041                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2042                                 continue;
2043                         cfg->speaker_pins[cfg->speaker_outs] = nid;
2044                         cfg->speaker_outs++;
2045                         break;
2046                 case AC_JACK_HP_OUT:
2047                         cfg->hp_pin = nid;
2048                         break;
2049                 case AC_JACK_MIC_IN:
2050                         if (loc == AC_JACK_LOC_FRONT)
2051                                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = nid;
2052                         else
2053                                 cfg->input_pins[AUTO_PIN_MIC] = nid;
2054                         break;
2055                 case AC_JACK_LINE_IN:
2056                         if (loc == AC_JACK_LOC_FRONT)
2057                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2058                         else
2059                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
2060                         break;
2061                 case AC_JACK_CD:
2062                         cfg->input_pins[AUTO_PIN_CD] = nid;
2063                         break;
2064                 case AC_JACK_AUX:
2065                         cfg->input_pins[AUTO_PIN_AUX] = nid;
2066                         break;
2067                 case AC_JACK_SPDIF_OUT:
2068                         cfg->dig_out_pin = nid;
2069                         break;
2070                 case AC_JACK_SPDIF_IN:
2071                         cfg->dig_in_pin = nid;
2072                         break;
2073                 }
2074         }
2075
2076         /* sort by sequence */
2077         for (i = 0; i < cfg->line_outs; i++)
2078                 for (j = i + 1; j < cfg->line_outs; j++)
2079                         if (sequences[i] > sequences[j]) {
2080                                 seq = sequences[i];
2081                                 sequences[i] = sequences[j];
2082                                 sequences[j] = seq;
2083                                 nid = cfg->line_out_pins[i];
2084                                 cfg->line_out_pins[i] = cfg->line_out_pins[j];
2085                                 cfg->line_out_pins[j] = nid;
2086                         }
2087
2088         /* Reorder the surround channels
2089          * ALSA sequence is front/surr/clfe/side
2090          * HDA sequence is:
2091          *    4-ch: front/surr  =>  OK as it is
2092          *    6-ch: front/clfe/surr
2093          *    8-ch: front/clfe/side/surr
2094          */
2095         switch (cfg->line_outs) {
2096         case 3:
2097                 nid = cfg->line_out_pins[1];
2098                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2099                 cfg->line_out_pins[2] = nid;
2100                 break;
2101         case 4:
2102                 nid = cfg->line_out_pins[1];
2103                 cfg->line_out_pins[1] = cfg->line_out_pins[3];
2104                 cfg->line_out_pins[3] = cfg->line_out_pins[2];
2105                 cfg->line_out_pins[2] = nid;
2106                 break;
2107         }
2108
2109         /*
2110          * debug prints of the parsed results
2111          */
2112         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2113                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2114                    cfg->line_out_pins[2], cfg->line_out_pins[3],
2115                    cfg->line_out_pins[4]);
2116         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2117                    cfg->speaker_outs, cfg->speaker_pins[0],
2118                    cfg->speaker_pins[1], cfg->speaker_pins[2],
2119                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
2120         snd_printd("   hp=0x%x, dig_out=0x%x, din_in=0x%x\n",
2121                    cfg->hp_pin, cfg->dig_out_pin, cfg->dig_in_pin);
2122         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2123                    " cd=0x%x, aux=0x%x\n",
2124                    cfg->input_pins[AUTO_PIN_MIC],
2125                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
2126                    cfg->input_pins[AUTO_PIN_LINE],
2127                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
2128                    cfg->input_pins[AUTO_PIN_CD],
2129                    cfg->input_pins[AUTO_PIN_AUX]);
2130
2131         /*
2132          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2133          * as a primary output
2134          */
2135         if (! cfg->line_outs) {
2136                 if (cfg->speaker_outs) {
2137                         cfg->line_outs = cfg->speaker_outs;
2138                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
2139                                sizeof(cfg->speaker_pins));
2140                         cfg->speaker_outs = 0;
2141                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2142                 } else if (cfg->hp_pin) {
2143                         cfg->line_outs = 1;
2144                         cfg->line_out_pins[0] = cfg->hp_pin;
2145                         cfg->hp_pin = 0;
2146                 }
2147         }
2148
2149         return 0;
2150 }
2151
2152 /* labels for input pins */
2153 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2154         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2155 };
2156
2157
2158 #ifdef CONFIG_PM
2159 /*
2160  * power management
2161  */
2162
2163 /**
2164  * snd_hda_suspend - suspend the codecs
2165  * @bus: the HDA bus
2166  * @state: suspsend state
2167  *
2168  * Returns 0 if successful.
2169  */
2170 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2171 {
2172         struct list_head *p;
2173
2174         /* FIXME: should handle power widget capabilities */
2175         list_for_each(p, &bus->codec_list) {
2176                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2177                 if (codec->patch_ops.suspend)
2178                         codec->patch_ops.suspend(codec, state);
2179                 hda_set_power_state(codec,
2180                                     codec->afg ? codec->afg : codec->mfg,
2181                                     AC_PWRST_D3);
2182         }
2183         return 0;
2184 }
2185
2186 EXPORT_SYMBOL(snd_hda_suspend);
2187
2188 /**
2189  * snd_hda_resume - resume the codecs
2190  * @bus: the HDA bus
2191  * @state: resume state
2192  *
2193  * Returns 0 if successful.
2194  */
2195 int snd_hda_resume(struct hda_bus *bus)
2196 {
2197         struct list_head *p;
2198
2199         list_for_each(p, &bus->codec_list) {
2200                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2201                 hda_set_power_state(codec,
2202                                     codec->afg ? codec->afg : codec->mfg,
2203                                     AC_PWRST_D0);
2204                 if (codec->patch_ops.resume)
2205                         codec->patch_ops.resume(codec);
2206         }
2207         return 0;
2208 }
2209
2210 EXPORT_SYMBOL(snd_hda_resume);
2211
2212 /**
2213  * snd_hda_resume_ctls - resume controls in the new control list
2214  * @codec: the HDA codec
2215  * @knew: the array of struct snd_kcontrol_new
2216  *
2217  * This function resumes the mixer controls in the struct snd_kcontrol_new array,
2218  * originally for snd_hda_add_new_ctls().
2219  * The array must be terminated with an empty entry as terminator.
2220  */
2221 int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2222 {
2223         struct snd_ctl_elem_value *val;
2224
2225         val = kmalloc(sizeof(*val), GFP_KERNEL);
2226         if (! val)
2227                 return -ENOMEM;
2228         codec->in_resume = 1;
2229         for (; knew->name; knew++) {
2230                 int i, count;
2231                 count = knew->count ? knew->count : 1;
2232                 for (i = 0; i < count; i++) {
2233                         memset(val, 0, sizeof(*val));
2234                         val->id.iface = knew->iface;
2235                         val->id.device = knew->device;
2236                         val->id.subdevice = knew->subdevice;
2237                         strcpy(val->id.name, knew->name);
2238                         val->id.index = knew->index ? knew->index : i;
2239                         /* Assume that get callback reads only from cache,
2240                          * not accessing to the real hardware
2241                          */
2242                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
2243                                 continue;
2244                         snd_ctl_elem_write(codec->bus->card, NULL, val);
2245                 }
2246         }
2247         codec->in_resume = 0;
2248         kfree(val);
2249         return 0;
2250 }
2251
2252 /**
2253  * snd_hda_resume_spdif_out - resume the digital out
2254  * @codec: the HDA codec
2255  */
2256 int snd_hda_resume_spdif_out(struct hda_codec *codec)
2257 {
2258         return snd_hda_resume_ctls(codec, dig_mixes);
2259 }
2260
2261 /**
2262  * snd_hda_resume_spdif_in - resume the digital in
2263  * @codec: the HDA codec
2264  */
2265 int snd_hda_resume_spdif_in(struct hda_codec *codec)
2266 {
2267         return snd_hda_resume_ctls(codec, dig_in_ctls);
2268 }
2269 #endif
2270
2271 /*
2272  *  INIT part
2273  */
2274
2275 static int __init alsa_hda_init(void)
2276 {
2277         return 0;
2278 }
2279
2280 static void __exit alsa_hda_exit(void)
2281 {
2282 }
2283
2284 module_init(alsa_hda_init)
2285 module_exit(alsa_hda_exit)