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/tlv.h>
  33 #include <sound/initval.h>
  34 #include "hda_local.h"
  35
  36
  37 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
  38 MODULE_DESCRIPTION("Universal interface for High Definition Audio Codec");
  39 MODULE_LICENSE("GPL");
  40
  41
  42 /*
  43  * vendor / preset table
  44  */
  45
  46 struct hda_vendor_id {
  47         unsigned int id;
  48         const char *name;
  49 };
  50
  51 /* codec vendor labels */
  52 static struct hda_vendor_id hda_vendor_ids[] = {
  53         { 0x10ec, "Realtek" },
  54         { 0x1057, "Motorola" },
  55         { 0x11d4, "Analog Devices" },
  56         { 0x13f6, "C-Media" },
  57         { 0x14f1, "Conexant" },
  58         { 0x434d, "C-Media" },
  59         { 0x8384, "SigmaTel" },
  60         {} /* terminator */
  61 };
  62
  63 /* codec presets */
  64 #include "hda_patch.h"
  65
  66
  67 /**
  68  * snd_hda_codec_read - send a command and get the response
  69  * @codec: the HDA codec
  70  * @nid: NID to send the command
  71  * @direct: direct flag
  72  * @verb: the verb to send
  73  * @parm: the parameter for the verb
  74  *
  75  * Send a single command and read the corresponding response.
  76  *
  77  * Returns the obtained response value, or -1 for an error.
  78  */
  79 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
  80                                 unsigned int verb, unsigned int parm)
  81 {
  82         unsigned int res;
  83         mutex_lock(&codec->bus->cmd_mutex);
  84         if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
  85                 res = codec->bus->ops.get_response(codec);
  86         else
  87                 res = (unsigned int)-1;
  88         mutex_unlock(&codec->bus->cmd_mutex);
  89         return res;
  90 }
  91
  92 EXPORT_SYMBOL(snd_hda_codec_read);
  93
  94 /**
  95  * snd_hda_codec_write - send a single command without waiting for response
  96  * @codec: the HDA codec
  97  * @nid: NID to send the command
  98  * @direct: direct flag
  99  * @verb: the verb to send
 100  * @parm: the parameter for the verb
 101  *
 102  * Send a single command without waiting for response.
 103  *
 104  * Returns 0 if successful, or a negative error code.
 105  */
 106 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 107                          unsigned int verb, unsigned int parm)
 108 {
 109         int err;
 110         mutex_lock(&codec->bus->cmd_mutex);
 111         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
 112         mutex_unlock(&codec->bus->cmd_mutex);
 113         return err;
 114 }
 115
 116 EXPORT_SYMBOL(snd_hda_codec_write);
 117
 118 /**
 119  * snd_hda_sequence_write - sequence writes
 120  * @codec: the HDA codec
 121  * @seq: VERB array to send
 122  *
 123  * Send the commands sequentially from the given array.
 124  * The array must be terminated with NID=0.
 125  */
 126 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 127 {
 128         for (; seq->nid; seq++)
 129                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 130 }
 131
 132 EXPORT_SYMBOL(snd_hda_sequence_write);
 133
 134 /**
 135  * snd_hda_get_sub_nodes - get the range of sub nodes
 136  * @codec: the HDA codec
 137  * @nid: NID to parse
 138  * @start_id: the pointer to store the start NID
 139  *
 140  * Parse the NID and store the start NID of its sub-nodes.
 141  * Returns the number of sub-nodes.
 142  */
 143 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
 144 {
 145         unsigned int parm;
 146
 147         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
 148         *start_id = (parm >> 16) & 0x7fff;
 149         return (int)(parm & 0x7fff);
 150 }
 151
 152 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
 153
 154 /**
 155  * snd_hda_get_connections - get connection list
 156  * @codec: the HDA codec
 157  * @nid: NID to parse
 158  * @conn_list: connection list array
 159  * @max_conns: max. number of connections to store
 160  *
 161  * Parses the connection list of the given widget and stores the list
 162  * of NIDs.
 163  *
 164  * Returns the number of connections, or a negative error code.
 165  */
 166 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 167                             hda_nid_t *conn_list, int max_conns)
 168 {
 169         unsigned int parm;
 170         int i, conn_len, conns;
 171         unsigned int shift, num_elems, mask;
 172         hda_nid_t prev_nid;
 173
 174         snd_assert(conn_list && max_conns > 0, return -EINVAL);
 175
 176         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 177         if (parm & AC_CLIST_LONG) {
 178                 /* long form */
 179                 shift = 16;
 180                 num_elems = 2;
 181         } else {
 182                 /* short form */
 183                 shift = 8;
 184                 num_elems = 4;
 185         }
 186         conn_len = parm & AC_CLIST_LENGTH;
 187         mask = (1 << (shift-1)) - 1;
 188
 189         if (! conn_len)
 190                 return 0; /* no connection */
 191
 192         if (conn_len == 1) {
 193                 /* single connection */
 194                 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
 195                 conn_list[0] = parm & mask;
 196                 return 1;
 197         }
 198
 199         /* multi connection */
 200         conns = 0;
 201         prev_nid = 0;
 202         for (i = 0; i < conn_len; i++) {
 203                 int range_val;
 204                 hda_nid_t val, n;
 205
 206                 if (i % num_elems == 0)
 207                         parm = snd_hda_codec_read(codec, nid, 0,
 208                                                   AC_VERB_GET_CONNECT_LIST, i);
 209                 range_val = !! (parm & (1 << (shift-1))); /* ranges */
 210                 val = parm & mask;
 211                 parm >>= shift;
 212                 if (range_val) {
 213                         /* ranges between the previous and this one */
 214                         if (! prev_nid || prev_nid >= val) {
 215                                 snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", prev_nid, val);
 216                                 continue;
 217                         }
 218                         for (n = prev_nid + 1; n <= val; n++) {
 219                                 if (conns >= max_conns) {
 220                                         snd_printk(KERN_ERR "Too many connections\n");
 221                                         return -EINVAL;
 222                                 }
 223                                 conn_list[conns++] = n;
 224                         }
 225                 } else {
 226                         if (conns >= max_conns) {
 227                                 snd_printk(KERN_ERR "Too many connections\n");
 228                                 return -EINVAL;
 229                         }
 230                         conn_list[conns++] = val;
 231                 }
 232                 prev_nid = val;
 233         }
 234         return conns;
 235 }
 236
 237
 238 /**
 239  * snd_hda_queue_unsol_event - add an unsolicited event to queue
 240  * @bus: the BUS
 241  * @res: unsolicited event (lower 32bit of RIRB entry)
 242  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
 243  *
 244  * Adds the given event to the queue.  The events are processed in
 245  * the workqueue asynchronously.  Call this function in the interrupt
 246  * hanlder when RIRB receives an unsolicited event.
 247  *
 248  * Returns 0 if successful, or a negative error code.
 249  */
 250 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 251 {
 252         struct hda_bus_unsolicited *unsol;
 253         unsigned int wp;
 254
 255         if ((unsol = bus->unsol) == NULL)
 256                 return 0;
 257
 258         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
 259         unsol->wp = wp;
 260
 261         wp <<= 1;
 262         unsol->queue[wp] = res;
 263         unsol->queue[wp + 1] = res_ex;
 264
 265         queue_work(unsol->workq, &unsol->work);
 266
 267         return 0;
 268 }
 269
 270 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
 271
 272 /*
 273  * process queueud unsolicited events
 274  */
 275 static void process_unsol_events(struct work_struct *work)
 276 {
 277         struct hda_bus_unsolicited *unsol =
 278                 container_of(work, struct hda_bus_unsolicited, work);
 279         struct hda_bus *bus = unsol->bus;
 280         struct hda_codec *codec;
 281         unsigned int rp, caddr, res;
 282
 283         while (unsol->rp != unsol->wp) {
 284                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
 285                 unsol->rp = rp;
 286                 rp <<= 1;
 287                 res = unsol->queue[rp];
 288                 caddr = unsol->queue[rp + 1];
 289                 if (! (caddr & (1 << 4))) /* no unsolicited event? */
 290                         continue;
 291                 codec = bus->caddr_tbl[caddr & 0x0f];
 292                 if (codec && codec->patch_ops.unsol_event)
 293                         codec->patch_ops.unsol_event(codec, res);
 294         }
 295 }
 296
 297 /*
 298  * initialize unsolicited queue
 299  */
 300 static int init_unsol_queue(struct hda_bus *bus)
 301 {
 302         struct hda_bus_unsolicited *unsol;
 303
 304         if (bus->unsol) /* already initialized */
 305                 return 0;
 306
 307         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
 308         if (! unsol) {
 309                 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
 310                 return -ENOMEM;
 311         }
 312         unsol->workq = create_singlethread_workqueue("hda_codec");
 313         if (! unsol->workq) {
 314                 snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
 315                 kfree(unsol);
 316                 return -ENOMEM;
 317         }
 318         INIT_WORK(&unsol->work, process_unsol_events);
 319         unsol->bus = bus;
 320         bus->unsol = unsol;
 321         return 0;
 322 }
 323
 324 /*
 325  * destructor
 326  */
 327 static void snd_hda_codec_free(struct hda_codec *codec);
 328
 329 static int snd_hda_bus_free(struct hda_bus *bus)
 330 {
 331         struct list_head *p, *n;
 332
 333         if (! bus)
 334                 return 0;
 335         if (bus->unsol) {
 336                 destroy_workqueue(bus->unsol->workq);
 337                 kfree(bus->unsol);
 338         }
 339         list_for_each_safe(p, n, &bus->codec_list) {
 340                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
 341                 snd_hda_codec_free(codec);
 342         }
 343         if (bus->ops.private_free)
 344                 bus->ops.private_free(bus);
 345         kfree(bus);
 346         return 0;
 347 }
 348
 349 static int snd_hda_bus_dev_free(struct snd_device *device)
 350 {
 351         struct hda_bus *bus = device->device_data;
 352         return snd_hda_bus_free(bus);
 353 }
 354
 355 /**
 356  * snd_hda_bus_new - create a HDA bus
 357  * @card: the card entry
 358  * @temp: the template for hda_bus information
 359  * @busp: the pointer to store the created bus instance
 360  *
 361  * Returns 0 if successful, or a negative error code.
 362  */
 363 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
 364                     struct hda_bus **busp)
 365 {
 366         struct hda_bus *bus;
 367         int err;
 368         static struct snd_device_ops dev_ops = {
 369                 .dev_free = snd_hda_bus_dev_free,
 370         };
 371
 372         snd_assert(temp, return -EINVAL);
 373         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
 374
 375         if (busp)
 376                 *busp = NULL;
 377
 378         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 379         if (bus == NULL) {
 380                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 381                 return -ENOMEM;
 382         }
 383
 384         bus->card = card;
 385         bus->private_data = temp->private_data;
 386         bus->pci = temp->pci;
 387         bus->modelname = temp->modelname;
 388         bus->ops = temp->ops;
 389
 390         mutex_init(&bus->cmd_mutex);
 391         INIT_LIST_HEAD(&bus->codec_list);
 392
 393         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
 394                 snd_hda_bus_free(bus);
 395                 return err;
 396         }
 397         if (busp)
 398                 *busp = bus;
 399         return 0;
 400 }
 401
 402 EXPORT_SYMBOL(snd_hda_bus_new);
 403
 404 /*
 405  * find a matching codec preset
 406  */
 407 static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
 408 {
 409         const struct hda_codec_preset **tbl, *preset;
 410
 411         for (tbl = hda_preset_tables; *tbl; tbl++) {
 412                 for (preset = *tbl; preset->id; preset++) {
 413                         u32 mask = preset->mask;
 414                         if (! mask)
 415                                 mask = ~0;
 416                         if (preset->id == (codec->vendor_id & mask) &&
 417                             (! preset->rev ||
 418                              preset->rev == codec->revision_id))
 419                                 return preset;
 420                 }
 421         }
 422         return NULL;
 423 }
 424
 425 /*
 426  * snd_hda_get_codec_name - store the codec name
 427  */
 428 void snd_hda_get_codec_name(struct hda_codec *codec,
 429                             char *name, int namelen)
 430 {
 431         const struct hda_vendor_id *c;
 432         const char *vendor = NULL;
 433         u16 vendor_id = codec->vendor_id >> 16;
 434         char tmp[16];
 435
 436         for (c = hda_vendor_ids; c->id; c++) {
 437                 if (c->id == vendor_id) {
 438                         vendor = c->name;
 439                         break;
 440                 }
 441         }
 442         if (! vendor) {
 443                 sprintf(tmp, "Generic %04x", vendor_id);
 444                 vendor = tmp;
 445         }
 446         if (codec->preset && codec->preset->name)
 447                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 448         else
 449                 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
 450 }
 451
 452 /*
 453  * look for an AFG and MFG nodes
 454  */
 455 static void setup_fg_nodes(struct hda_codec *codec)
 456 {
 457         int i, total_nodes;
 458         hda_nid_t nid;
 459
 460         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 461         for (i = 0; i < total_nodes; i++, nid++) {
 462                 switch((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff)) {
 463                 case AC_GRP_AUDIO_FUNCTION:
 464                         codec->afg = nid;
 465                         break;
 466                 case AC_GRP_MODEM_FUNCTION:
 467                         codec->mfg = nid;
 468                         break;
 469                 default:
 470                         break;
 471                 }
 472         }
 473 }
 474
 475 /*
 476  * read widget caps for each widget and store in cache
 477  */
 478 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 479 {
 480         int i;
 481         hda_nid_t nid;
 482
 483         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 484                                                  &codec->start_nid);
 485         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 486         if (! codec->wcaps)
 487                 return -ENOMEM;
 488         nid = codec->start_nid;
 489         for (i = 0; i < codec->num_nodes; i++, nid++)
 490                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 491                                                      AC_PAR_AUDIO_WIDGET_CAP);
 492         return 0;
 493 }
 494
 495
 496 /*
 497  * codec destructor
 498  */
 499 static void snd_hda_codec_free(struct hda_codec *codec)
 500 {
 501         if (! codec)
 502                 return;
 503         list_del(&codec->list);
 504         codec->bus->caddr_tbl[codec->addr] = NULL;
 505         if (codec->patch_ops.free)
 506                 codec->patch_ops.free(codec);
 507         kfree(codec->amp_info);
 508         kfree(codec->wcaps);
 509         kfree(codec);
 510 }
 511
 512 static void init_amp_hash(struct hda_codec *codec);
 513
 514 /**
 515  * snd_hda_codec_new - create a HDA codec
 516  * @bus: the bus to assign
 517  * @codec_addr: the codec address
 518  * @codecp: the pointer to store the generated codec
 519  *
 520  * Returns 0 if successful, or a negative error code.
 521  */
 522 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 523                       struct hda_codec **codecp)
 524 {
 525         struct hda_codec *codec;
 526         char component[13];
 527         int err;
 528
 529         snd_assert(bus, return -EINVAL);
 530         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 531
 532         if (bus->caddr_tbl[codec_addr]) {
 533                 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
 534                 return -EBUSY;
 535         }
 536
 537         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 538         if (codec == NULL) {
 539                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 540                 return -ENOMEM;
 541         }
 542
 543         codec->bus = bus;
 544         codec->addr = codec_addr;
 545         mutex_init(&codec->spdif_mutex);
 546         init_amp_hash(codec);
 547
 548         list_add_tail(&codec->list, &bus->codec_list);
 549         bus->caddr_tbl[codec_addr] = codec;
 550
 551         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
 552         if (codec->vendor_id == -1)
 553                 /* read again, hopefully the access method was corrected
 554                  * in the last read...
 555                  */
 556                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 557                                                       AC_PAR_VENDOR_ID);
 558         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
 559         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
 560
 561         setup_fg_nodes(codec);
 562         if (! codec->afg && ! codec->mfg) {
 563                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 564                 snd_hda_codec_free(codec);
 565                 return -ENODEV;
 566         }
 567
 568         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 569                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 570                 snd_hda_codec_free(codec);
 571                 return -ENOMEM;
 572         }
 573
 574         if (! codec->subsystem_id) {
 575                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 576                 codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
 577                                                          AC_VERB_GET_SUBSYSTEM_ID,
 578                                                          0);
 579         }
 580
 581         codec->preset = find_codec_preset(codec);
 582         if (! *bus->card->mixername)
 583                 snd_hda_get_codec_name(codec, bus->card->mixername,
 584                                        sizeof(bus->card->mixername));
 585
 586         if (codec->preset && codec->preset->patch)
 587                 err = codec->preset->patch(codec);
 588         else
 589                 err = snd_hda_parse_generic_codec(codec);
 590         if (err < 0) {
 591                 snd_hda_codec_free(codec);
 592                 return err;
 593         }
 594
 595         if (codec->patch_ops.unsol_event)
 596                 init_unsol_queue(bus);
 597
 598         snd_hda_codec_proc_new(codec);
 599
 600         sprintf(component, "HDA:%08x", codec->vendor_id);
 601         snd_component_add(codec->bus->card, component);
 602
 603         if (codecp)
 604                 *codecp = codec;
 605         return 0;
 606 }
 607
 608 EXPORT_SYMBOL(snd_hda_codec_new);
 609
 610 /**
 611  * snd_hda_codec_setup_stream - set up the codec for streaming
 612  * @codec: the CODEC to set up
 613  * @nid: the NID to set up
 614  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 615  * @channel_id: channel id to pass, zero based.
 616  * @format: stream format.
 617  */
 618 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
 619                                 int channel_id, int format)
 620 {
 621         if (! nid)
 622                 return;
 623
 624         snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 625                     nid, stream_tag, channel_id, format);
 626         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 627                             (stream_tag << 4) | channel_id);
 628         msleep(1);
 629         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 630 }
 631
 632 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
 633
 634 /*
 635  * amp access functions
 636  */
 637
 638 /* FIXME: more better hash key? */
 639 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 640 #define INFO_AMP_CAPS   (1<<0)
 641 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 642
 643 /* initialize the hash table */
 644 static void init_amp_hash(struct hda_codec *codec)
 645 {
 646         memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
 647         codec->num_amp_entries = 0;
 648         codec->amp_info_size = 0;
 649         codec->amp_info = NULL;
 650 }
 651
 652 /* query the hash.  allocate an entry if not found. */
 653 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 654 {
 655         u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
 656         u16 cur = codec->amp_hash[idx];
 657         struct hda_amp_info *info;
 658
 659         while (cur != 0xffff) {
 660                 info = &codec->amp_info[cur];
 661                 if (info->key == key)
 662                         return info;
 663                 cur = info->next;
 664         }
 665
 666         /* add a new hash entry */
 667         if (codec->num_amp_entries >= codec->amp_info_size) {
 668                 /* reallocate the array */
 669                 int new_size = codec->amp_info_size + 64;
 670                 struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
 671                                                         GFP_KERNEL);
 672                 if (! new_info) {
 673                         snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
 674                         return NULL;
 675                 }
 676                 if (codec->amp_info) {
 677                         memcpy(new_info, codec->amp_info,
 678                                codec->amp_info_size * sizeof(struct hda_amp_info));
 679                         kfree(codec->amp_info);
 680                 }
 681                 codec->amp_info_size = new_size;
 682                 codec->amp_info = new_info;
 683         }
 684         cur = codec->num_amp_entries++;
 685         info = &codec->amp_info[cur];
 686         info->key = key;
 687         info->status = 0; /* not initialized yet */
 688         info->next = codec->amp_hash[idx];
 689         codec->amp_hash[idx] = cur;
 690
 691         return info;
 692 }
 693
 694 /*
 695  * query AMP capabilities for the given widget and direction
 696  */
 697 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 698 {
 699         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 700
 701         if (! info)
 702                 return 0;
 703         if (! (info->status & INFO_AMP_CAPS)) {
 704                 if (! (get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 705                         nid = codec->afg;
 706                 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
 707                                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 708                 info->status |= INFO_AMP_CAPS;
 709         }
 710         return info->amp_caps;
 711 }
 712
 713 /*
 714  * read the current volume to info
 715  * if the cache exists, read the cache value.
 716  */
 717 static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 718                          hda_nid_t nid, int ch, int direction, int index)
 719 {
 720         u32 val, parm;
 721
 722         if (info->status & INFO_AMP_VOL(ch))
 723                 return info->vol[ch];
 724
 725         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 726         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 727         parm |= index;
 728         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
 729         info->vol[ch] = val & 0xff;
 730         info->status |= INFO_AMP_VOL(ch);
 731         return info->vol[ch];
 732 }
 733
 734 /*
 735  * write the current volume in info to the h/w and update the cache
 736  */
 737 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 738                          hda_nid_t nid, int ch, int direction, int index, int val)
 739 {
 740         u32 parm;
 741
 742         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
 743         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
 744         parm |= index << AC_AMP_SET_INDEX_SHIFT;
 745         parm |= val;
 746         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
 747         info->vol[ch] = val;
 748 }
 749
 750 /*
 751  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 752  */
 753 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 754                            int direction, int index)
 755 {
 756         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
 757         if (! info)
 758                 return 0;
 759         return get_vol_mute(codec, info, nid, ch, direction, index);
 760 }
 761
 762 /*
 763  * update the AMP value, mask = bit mask to set, val = the value
 764  */
 765 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 766                              int direction, int idx, int mask, int val)
 767 {
 768         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
 769
 770         if (! info)
 771                 return 0;
 772         val &= mask;
 773         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
 774         if (info->vol[ch] == val && ! codec->in_resume)
 775                 return 0;
 776         put_vol_mute(codec, info, nid, ch, direction, idx, val);
 777         return 1;
 778 }
 779
 780
 781 /*
 782  * AMP control callbacks
 783  */
 784 /* retrieve parameters from private_value */
 785 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 786 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 787 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 788 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 789
 790 /* volume */
 791 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 792 {
 793         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 794         u16 nid = get_amp_nid(kcontrol);
 795         u8 chs = get_amp_channels(kcontrol);
 796         int dir = get_amp_direction(kcontrol);
 797         u32 caps;
 798
 799         caps = query_amp_caps(codec, nid, dir);
 800         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
 801         if (! caps) {
 802                 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
 803                 return -EINVAL;
 804         }
 805         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 806         uinfo->count = chs == 3 ? 2 : 1;
 807         uinfo->value.integer.min = 0;
 808         uinfo->value.integer.max = caps;
 809         return 0;
 810 }
 811
 812 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 813 {
 814         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 815         hda_nid_t nid = get_amp_nid(kcontrol);
 816         int chs = get_amp_channels(kcontrol);
 817         int dir = get_amp_direction(kcontrol);
 818         int idx = get_amp_index(kcontrol);
 819         long *valp = ucontrol->value.integer.value;
 820
 821         if (chs & 1)
 822                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
 823         if (chs & 2)
 824                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
 825         return 0;
 826 }
 827
 828 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 829 {
 830         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 831         hda_nid_t nid = get_amp_nid(kcontrol);
 832         int chs = get_amp_channels(kcontrol);
 833         int dir = get_amp_direction(kcontrol);
 834         int idx = get_amp_index(kcontrol);
 835         long *valp = ucontrol->value.integer.value;
 836         int change = 0;
 837
 838         if (chs & 1) {
 839                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 840                                                   0x7f, *valp);
 841                 valp++;
 842         }
 843         if (chs & 2)
 844                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 845                                                    0x7f, *valp);
 846         return change;
 847 }
 848
 849 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 850                           unsigned int size, unsigned int __user *_tlv)
 851 {
 852         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 853         hda_nid_t nid = get_amp_nid(kcontrol);
 854         int dir = get_amp_direction(kcontrol);
 855         u32 caps, val1, val2;
 856
 857         if (size < 4 * sizeof(unsigned int))
 858                 return -ENOMEM;
 859         caps = query_amp_caps(codec, nid, dir);
 860         val2 = (((caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT) + 1) * 25;
 861         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
 862         val1 = ((int)val1) * ((int)val2);
 863         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
 864                 return -EFAULT;
 865         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
 866                 return -EFAULT;
 867         if (put_user(val1, _tlv + 2))
 868                 return -EFAULT;
 869         if (put_user(val2, _tlv + 3))
 870                 return -EFAULT;
 871         return 0;
 872 }
 873
 874 /* switch */
 875 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 876 {
 877         int chs = get_amp_channels(kcontrol);
 878
 879         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 880         uinfo->count = chs == 3 ? 2 : 1;
 881         uinfo->value.integer.min = 0;
 882         uinfo->value.integer.max = 1;
 883         return 0;
 884 }
 885
 886 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 887 {
 888         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 889         hda_nid_t nid = get_amp_nid(kcontrol);
 890         int chs = get_amp_channels(kcontrol);
 891         int dir = get_amp_direction(kcontrol);
 892         int idx = get_amp_index(kcontrol);
 893         long *valp = ucontrol->value.integer.value;
 894
 895         if (chs & 1)
 896                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
 897         if (chs & 2)
 898                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
 899         return 0;
 900 }
 901
 902 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 903 {
 904         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 905         hda_nid_t nid = get_amp_nid(kcontrol);
 906         int chs = get_amp_channels(kcontrol);
 907         int dir = get_amp_direction(kcontrol);
 908         int idx = get_amp_index(kcontrol);
 909         long *valp = ucontrol->value.integer.value;
 910         int change = 0;
 911
 912         if (chs & 1) {
 913                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 914                                                   0x80, *valp ? 0 : 0x80);
 915                 valp++;
 916         }
 917         if (chs & 2)
 918                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 919                                                    0x80, *valp ? 0 : 0x80);
 920
 921         return change;
 922 }
 923
 924 /*
 925  * bound volume controls
 926  *
 927  * bind multiple volumes (# indices, from 0)
 928  */
 929
 930 #define AMP_VAL_IDX_SHIFT       19
 931 #define AMP_VAL_IDX_MASK        (0x0f<<19)
 932
 933 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 934 {
 935         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 936         unsigned long pval;
 937         int err;
 938
 939         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 940         pval = kcontrol->private_value;
 941         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
 942         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
 943         kcontrol->private_value = pval;
 944         mutex_unlock(&codec->spdif_mutex);
 945         return err;
 946 }
 947
 948 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 949 {
 950         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 951         unsigned long pval;
 952         int i, indices, err = 0, change = 0;
 953
 954         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 955         pval = kcontrol->private_value;
 956         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
 957         for (i = 0; i < indices; i++) {
 958                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
 959                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
 960                 if (err < 0)
 961                         break;
 962                 change |= err;
 963         }
 964         kcontrol->private_value = pval;
 965         mutex_unlock(&codec->spdif_mutex);
 966         return err < 0 ? err : change;
 967 }
 968
 969 /*
 970  * SPDIF out controls
 971  */
 972
 973 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 974 {
 975         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 976         uinfo->count = 1;
 977         return 0;
 978 }
 979
 980 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 981 {
 982         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 983                                            IEC958_AES0_NONAUDIO |
 984                                            IEC958_AES0_CON_EMPHASIS_5015 |
 985                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 986         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 987                                            IEC958_AES1_CON_ORIGINAL;
 988         return 0;
 989 }
 990
 991 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 992 {
 993         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 994                                            IEC958_AES0_NONAUDIO |
 995                                            IEC958_AES0_PRO_EMPHASIS_5015;
 996         return 0;
 997 }
 998
 999 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1000 {
1001         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1002
1003         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1004         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1005         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1006         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1007
1008         return 0;
1009 }
1010
1011 /* convert from SPDIF status bits to HDA SPDIF bits
1012  * bit 0 (DigEn) is always set zero (to be filled later)
1013  */
1014 static unsigned short convert_from_spdif_status(unsigned int sbits)
1015 {
1016         unsigned short val = 0;
1017
1018         if (sbits & IEC958_AES0_PROFESSIONAL)
1019                 val |= 1 << 6;
1020         if (sbits & IEC958_AES0_NONAUDIO)
1021                 val |= 1 << 5;
1022         if (sbits & IEC958_AES0_PROFESSIONAL) {
1023                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
1024                         val |= 1 << 3;
1025         } else {
1026                 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
1027                         val |= 1 << 3;
1028                 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1029                         val |= 1 << 4;
1030                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1031                         val |= 1 << 7;
1032                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1033         }
1034         return val;
1035 }
1036
1037 /* convert to SPDIF status bits from HDA SPDIF bits
1038  */
1039 static unsigned int convert_to_spdif_status(unsigned short val)
1040 {
1041         unsigned int sbits = 0;
1042
1043         if (val & (1 << 5))
1044                 sbits |= IEC958_AES0_NONAUDIO;
1045         if (val & (1 << 6))
1046                 sbits |= IEC958_AES0_PROFESSIONAL;
1047         if (sbits & IEC958_AES0_PROFESSIONAL) {
1048                 if (sbits & (1 << 3))
1049                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1050         } else {
1051                 if (val & (1 << 3))
1052                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1053                 if (! (val & (1 << 4)))
1054                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1055                 if (val & (1 << 7))
1056                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1057                 sbits |= val & (0x7f << 8);
1058         }
1059         return sbits;
1060 }
1061
1062 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1063 {
1064         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1065         hda_nid_t nid = kcontrol->private_value;
1066         unsigned short val;
1067         int change;
1068
1069         mutex_lock(&codec->spdif_mutex);
1070         codec->spdif_status = ucontrol->value.iec958.status[0] |
1071                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1072                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1073                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1074         val = convert_from_spdif_status(codec->spdif_status);
1075         val |= codec->spdif_ctls & 1;
1076         change = codec->spdif_ctls != val;
1077         codec->spdif_ctls = val;
1078
1079         if (change || codec->in_resume) {
1080                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1081                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
1082         }
1083
1084         mutex_unlock(&codec->spdif_mutex);
1085         return change;
1086 }
1087
1088 static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1089 {
1090         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1091         uinfo->count = 1;
1092         uinfo->value.integer.min = 0;
1093         uinfo->value.integer.max = 1;
1094         return 0;
1095 }
1096
1097 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1098 {
1099         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1100
1101         ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
1102         return 0;
1103 }
1104
1105 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1106 {
1107         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1108         hda_nid_t nid = kcontrol->private_value;
1109         unsigned short val;
1110         int change;
1111
1112         mutex_lock(&codec->spdif_mutex);
1113         val = codec->spdif_ctls & ~1;
1114         if (ucontrol->value.integer.value[0])
1115                 val |= 1;
1116         change = codec->spdif_ctls != val;
1117         if (change || codec->in_resume) {
1118                 codec->spdif_ctls = val;
1119                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1120                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
1121                                     AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
1122                                     AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
1123         }
1124         mutex_unlock(&codec->spdif_mutex);
1125         return change;
1126 }
1127
1128 static struct snd_kcontrol_new dig_mixes[] = {
1129         {
1130                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1131                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1132                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1133                 .info = snd_hda_spdif_mask_info,
1134                 .get = snd_hda_spdif_cmask_get,
1135         },
1136         {
1137                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1138                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1139                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1140                 .info = snd_hda_spdif_mask_info,
1141                 .get = snd_hda_spdif_pmask_get,
1142         },
1143         {
1144                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1145                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1146                 .info = snd_hda_spdif_mask_info,
1147                 .get = snd_hda_spdif_default_get,
1148                 .put = snd_hda_spdif_default_put,
1149         },
1150         {
1151                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1152                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1153                 .info = snd_hda_spdif_out_switch_info,
1154                 .get = snd_hda_spdif_out_switch_get,
1155                 .put = snd_hda_spdif_out_switch_put,
1156         },
1157         { } /* end */
1158 };
1159
1160 /**
1161  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1162  * @codec: the HDA codec
1163  * @nid: audio out widget NID
1164  *
1165  * Creates controls related with the SPDIF output.
1166  * Called from each patch supporting the SPDIF out.
1167  *
1168  * Returns 0 if successful, or a negative error code.
1169  */
1170 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1171 {
1172         int err;
1173         struct snd_kcontrol *kctl;
1174         struct snd_kcontrol_new *dig_mix;
1175
1176         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1177                 kctl = snd_ctl_new1(dig_mix, codec);
1178                 kctl->private_value = nid;
1179                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1180                         return err;
1181         }
1182         codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1183         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1184         return 0;
1185 }
1186
1187 /*
1188  * SPDIF input
1189  */
1190
1191 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1192
1193 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1194 {
1195         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1196
1197         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1198         return 0;
1199 }
1200
1201 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1202 {
1203         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1204         hda_nid_t nid = kcontrol->private_value;
1205         unsigned int val = !!ucontrol->value.integer.value[0];
1206         int change;
1207
1208         mutex_lock(&codec->spdif_mutex);
1209         change = codec->spdif_in_enable != val;
1210         if (change || codec->in_resume) {
1211                 codec->spdif_in_enable = val;
1212                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1213         }
1214         mutex_unlock(&codec->spdif_mutex);
1215         return change;
1216 }
1217
1218 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1219 {
1220         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1221         hda_nid_t nid = kcontrol->private_value;
1222         unsigned short val;
1223         unsigned int sbits;
1224
1225         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1226         sbits = convert_to_spdif_status(val);
1227         ucontrol->value.iec958.status[0] = sbits;
1228         ucontrol->value.iec958.status[1] = sbits >> 8;
1229         ucontrol->value.iec958.status[2] = sbits >> 16;
1230         ucontrol->value.iec958.status[3] = sbits >> 24;
1231         return 0;
1232 }
1233
1234 static struct snd_kcontrol_new dig_in_ctls[] = {
1235         {
1236                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1237                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1238                 .info = snd_hda_spdif_in_switch_info,
1239                 .get = snd_hda_spdif_in_switch_get,
1240                 .put = snd_hda_spdif_in_switch_put,
1241         },
1242         {
1243                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1244                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1245                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1246                 .info = snd_hda_spdif_mask_info,
1247                 .get = snd_hda_spdif_in_status_get,
1248         },
1249         { } /* end */
1250 };
1251
1252 /**
1253  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1254  * @codec: the HDA codec
1255  * @nid: audio in widget NID
1256  *
1257  * Creates controls related with the SPDIF input.
1258  * Called from each patch supporting the SPDIF in.
1259  *
1260  * Returns 0 if successful, or a negative error code.
1261  */
1262 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1263 {
1264         int err;
1265         struct snd_kcontrol *kctl;
1266         struct snd_kcontrol_new *dig_mix;
1267
1268         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1269                 kctl = snd_ctl_new1(dig_mix, codec);
1270                 kctl->private_value = nid;
1271                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1272                         return err;
1273         }
1274         codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1275         return 0;
1276 }
1277
1278
1279 /*
1280  * set power state of the codec
1281  */
1282 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1283                                 unsigned int power_state)
1284 {
1285         hda_nid_t nid, nid_start;
1286         int nodes;
1287
1288         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1289                             power_state);
1290
1291         nodes = snd_hda_get_sub_nodes(codec, fg, &nid_start);
1292         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1293                 if (get_wcaps(codec, nid) & AC_WCAP_POWER)
1294                         snd_hda_codec_write(codec, nid, 0,
1295                                             AC_VERB_SET_POWER_STATE,
1296                                             power_state);
1297         }
1298
1299         if (power_state == AC_PWRST_D0)
1300                 msleep(10);
1301 }
1302
1303
1304 /**
1305  * snd_hda_build_controls - build mixer controls
1306  * @bus: the BUS
1307  *
1308  * Creates mixer controls for each codec included in the bus.
1309  *
1310  * Returns 0 if successful, otherwise a negative error code.
1311  */
1312 int snd_hda_build_controls(struct hda_bus *bus)
1313 {
1314         struct list_head *p;
1315
1316         /* build controls */
1317         list_for_each(p, &bus->codec_list) {
1318                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1319                 int err;
1320                 if (! codec->patch_ops.build_controls)
1321                         continue;
1322                 err = codec->patch_ops.build_controls(codec);
1323                 if (err < 0)
1324                         return err;
1325         }
1326
1327         /* initialize */
1328         list_for_each(p, &bus->codec_list) {
1329                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1330                 int err;
1331                 hda_set_power_state(codec,
1332                                     codec->afg ? codec->afg : codec->mfg,
1333                                     AC_PWRST_D0);
1334                 if (! codec->patch_ops.init)
1335                         continue;
1336                 err = codec->patch_ops.init(codec);
1337                 if (err < 0)
1338                         return err;
1339         }
1340         return 0;
1341 }
1342
1343 EXPORT_SYMBOL(snd_hda_build_controls);
1344
1345 /*
1346  * stream formats
1347  */
1348 struct hda_rate_tbl {
1349         unsigned int hz;
1350         unsigned int alsa_bits;
1351         unsigned int hda_fmt;
1352 };
1353
1354 static struct hda_rate_tbl rate_bits[] = {
1355         /* rate in Hz, ALSA rate bitmask, HDA format value */
1356
1357         /* autodetected value used in snd_hda_query_supported_pcm */
1358         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1359         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1360         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1361         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1362         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1363         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1364         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1365         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1366         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1367         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1368         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1369
1370         { 0 } /* terminator */
1371 };
1372
1373 /**
1374  * snd_hda_calc_stream_format - calculate format bitset
1375  * @rate: the sample rate
1376  * @channels: the number of channels
1377  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1378  * @maxbps: the max. bps
1379  *
1380  * Calculate the format bitset from the given rate, channels and th PCM format.
1381  *
1382  * Return zero if invalid.
1383  */
1384 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1385                                         unsigned int channels,
1386                                         unsigned int format,
1387                                         unsigned int maxbps)
1388 {
1389         int i;
1390         unsigned int val = 0;
1391
1392         for (i = 0; rate_bits[i].hz; i++)
1393                 if (rate_bits[i].hz == rate) {
1394                         val = rate_bits[i].hda_fmt;
1395                         break;
1396                 }
1397         if (! rate_bits[i].hz) {
1398                 snd_printdd("invalid rate %d\n", rate);
1399                 return 0;
1400         }
1401
1402         if (channels == 0 || channels > 8) {
1403                 snd_printdd("invalid channels %d\n", channels);
1404                 return 0;
1405         }
1406         val |= channels - 1;
1407
1408         switch (snd_pcm_format_width(format)) {
1409         case 8:  val |= 0x00; break;
1410         case 16: val |= 0x10; break;
1411         case 20:
1412         case 24:
1413         case 32:
1414                 if (maxbps >= 32)
1415                         val |= 0x40;
1416                 else if (maxbps >= 24)
1417                         val |= 0x30;
1418                 else
1419                         val |= 0x20;
1420                 break;
1421         default:
1422                 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1423                 return 0;
1424         }
1425
1426         return val;
1427 }
1428
1429 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1430
1431 /**
1432  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1433  * @codec: the HDA codec
1434  * @nid: NID to query
1435  * @ratesp: the pointer to store the detected rate bitflags
1436  * @formatsp: the pointer to store the detected formats
1437  * @bpsp: the pointer to store the detected format widths
1438  *
1439  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1440  * or @bsps argument is ignored.
1441  *
1442  * Returns 0 if successful, otherwise a negative error code.
1443  */
1444 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1445                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1446 {
1447         int i;
1448         unsigned int val, streams;
1449
1450         val = 0;
1451         if (nid != codec->afg &&
1452             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1453                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1454                 if (val == -1)
1455                         return -EIO;
1456         }
1457         if (! val)
1458                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1459
1460         if (ratesp) {
1461                 u32 rates = 0;
1462                 for (i = 0; rate_bits[i].hz; i++) {
1463                         if (val & (1 << i))
1464                                 rates |= rate_bits[i].alsa_bits;
1465                 }
1466                 *ratesp = rates;
1467         }
1468
1469         if (formatsp || bpsp) {
1470                 u64 formats = 0;
1471                 unsigned int bps;
1472                 unsigned int wcaps;
1473
1474                 wcaps = get_wcaps(codec, nid);
1475                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1476                 if (streams == -1)
1477                         return -EIO;
1478                 if (! streams) {
1479                         streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1480                         if (streams == -1)
1481                                 return -EIO;
1482                 }
1483
1484                 bps = 0;
1485                 if (streams & AC_SUPFMT_PCM) {
1486                         if (val & AC_SUPPCM_BITS_8) {
1487                                 formats |= SNDRV_PCM_FMTBIT_U8;
1488                                 bps = 8;
1489                         }
1490                         if (val & AC_SUPPCM_BITS_16) {
1491                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1492                                 bps = 16;
1493                         }
1494                         if (wcaps & AC_WCAP_DIGITAL) {
1495                                 if (val & AC_SUPPCM_BITS_32)
1496                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1497                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1498                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1499                                 if (val & AC_SUPPCM_BITS_24)
1500                                         bps = 24;
1501                                 else if (val & AC_SUPPCM_BITS_20)
1502                                         bps = 20;
1503                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1504                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1505                                 if (val & AC_SUPPCM_BITS_32)
1506                                         bps = 32;
1507                                 else if (val & AC_SUPPCM_BITS_24)
1508                                         bps = 24;
1509                                 else if (val & AC_SUPPCM_BITS_20)
1510                                         bps = 20;
1511                         }
1512                 }
1513                 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1514                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1515                         bps = 32;
1516                 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1517                         /* temporary hack: we have still no proper support
1518                          * for the direct AC3 stream...
1519                          */
1520                         formats |= SNDRV_PCM_FMTBIT_U8;
1521                         bps = 8;
1522                 }
1523                 if (formatsp)
1524                         *formatsp = formats;
1525                 if (bpsp)
1526                         *bpsp = bps;
1527         }
1528
1529         return 0;
1530 }
1531
1532 /**
1533  * snd_hda_is_supported_format - check whether the given node supports the format val
1534  *
1535  * Returns 1 if supported, 0 if not.
1536  */
1537 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1538                                 unsigned int format)
1539 {
1540         int i;
1541         unsigned int val = 0, rate, stream;
1542
1543         if (nid != codec->afg &&
1544             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1545                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1546                 if (val == -1)
1547                         return 0;
1548         }
1549         if (! val) {
1550                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1551                 if (val == -1)
1552                         return 0;
1553         }
1554
1555         rate = format & 0xff00;
1556         for (i = 0; rate_bits[i].hz; i++)
1557                 if (rate_bits[i].hda_fmt == rate) {
1558                         if (val & (1 << i))
1559                                 break;
1560                         return 0;
1561                 }
1562         if (! rate_bits[i].hz)
1563                 return 0;
1564
1565         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1566         if (stream == -1)
1567                 return 0;
1568         if (! stream && nid != codec->afg)
1569                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1570         if (! stream || stream == -1)
1571                 return 0;
1572
1573         if (stream & AC_SUPFMT_PCM) {
1574                 switch (format & 0xf0) {
1575                 case 0x00:
1576                         if (! (val & AC_SUPPCM_BITS_8))
1577                                 return 0;
1578                         break;
1579                 case 0x10:
1580                         if (! (val & AC_SUPPCM_BITS_16))
1581                                 return 0;
1582                         break;
1583                 case 0x20:
1584                         if (! (val & AC_SUPPCM_BITS_20))
1585                                 return 0;
1586                         break;
1587                 case 0x30:
1588                         if (! (val & AC_SUPPCM_BITS_24))
1589                                 return 0;
1590                         break;
1591                 case 0x40:
1592                         if (! (val & AC_SUPPCM_BITS_32))
1593                                 return 0;
1594                         break;
1595                 default:
1596                         return 0;
1597                 }
1598         } else {
1599                 /* FIXME: check for float32 and AC3? */
1600         }
1601
1602         return 1;
1603 }
1604
1605 /*
1606  * PCM stuff
1607  */
1608 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1609                                       struct hda_codec *codec,
1610                                       struct snd_pcm_substream *substream)
1611 {
1612         return 0;
1613 }
1614
1615 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1616                                    struct hda_codec *codec,
1617                                    unsigned int stream_tag,
1618                                    unsigned int format,
1619                                    struct snd_pcm_substream *substream)
1620 {
1621         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1622         return 0;
1623 }
1624
1625 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1626                                    struct hda_codec *codec,
1627                                    struct snd_pcm_substream *substream)
1628 {
1629         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1630         return 0;
1631 }
1632
1633 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1634 {
1635         if (info->nid) {
1636                 /* query support PCM information from the given NID */
1637                 if (! info->rates || ! info->formats)
1638                         snd_hda_query_supported_pcm(codec, info->nid,
1639                                                     info->rates ? NULL : &info->rates,
1640                                                     info->formats ? NULL : &info->formats,
1641                                                     info->maxbps ? NULL : &info->maxbps);
1642         }
1643         if (info->ops.open == NULL)
1644                 info->ops.open = hda_pcm_default_open_close;
1645         if (info->ops.close == NULL)
1646                 info->ops.close = hda_pcm_default_open_close;
1647         if (info->ops.prepare == NULL) {
1648                 snd_assert(info->nid, return -EINVAL);
1649                 info->ops.prepare = hda_pcm_default_prepare;
1650         }
1651         if (info->ops.cleanup == NULL) {
1652                 snd_assert(info->nid, return -EINVAL);
1653                 info->ops.cleanup = hda_pcm_default_cleanup;
1654         }
1655         return 0;
1656 }
1657
1658 /**
1659  * snd_hda_build_pcms - build PCM information
1660  * @bus: the BUS
1661  *
1662  * Create PCM information for each codec included in the bus.
1663  *
1664  * The build_pcms codec patch is requested to set up codec->num_pcms and
1665  * codec->pcm_info properly.  The array is referred by the top-level driver
1666  * to create its PCM instances.
1667  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1668  * callback.
1669  *
1670  * At least, substreams, channels_min and channels_max must be filled for
1671  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1672  * When rates and/or formats are zero, the supported values are queried
1673  * from the given nid.  The nid is used also by the default ops.prepare
1674  * and ops.cleanup callbacks.
1675  *
1676  * The driver needs to call ops.open in its open callback.  Similarly,
1677  * ops.close is supposed to be called in the close callback.
1678  * ops.prepare should be called in the prepare or hw_params callback
1679  * with the proper parameters for set up.
1680  * ops.cleanup should be called in hw_free for clean up of streams.
1681  *
1682  * This function returns 0 if successfull, or a negative error code.
1683  */
1684 int snd_hda_build_pcms(struct hda_bus *bus)
1685 {
1686         struct list_head *p;
1687
1688         list_for_each(p, &bus->codec_list) {
1689                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1690                 unsigned int pcm, s;
1691                 int err;
1692                 if (! codec->patch_ops.build_pcms)
1693                         continue;
1694                 err = codec->patch_ops.build_pcms(codec);
1695                 if (err < 0)
1696                         return err;
1697                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1698                         for (s = 0; s < 2; s++) {
1699                                 struct hda_pcm_stream *info;
1700                                 info = &codec->pcm_info[pcm].stream[s];
1701                                 if (! info->substreams)
1702                                         continue;
1703                                 err = set_pcm_default_values(codec, info);
1704                                 if (err < 0)
1705                                         return err;
1706                         }
1707                 }
1708         }
1709         return 0;
1710 }
1711
1712 EXPORT_SYMBOL(snd_hda_build_pcms);
1713
1714 /**
1715  * snd_hda_check_board_config - compare the current codec with the config table
1716  * @codec: the HDA codec
1717  * @tbl: configuration table, terminated by null entries
1718  *
1719  * Compares the modelname or PCI subsystem id of the current codec with the
1720  * given configuration table.  If a matching entry is found, returns its
1721  * config value (supposed to be 0 or positive).
1722  *
1723  * If no entries are matching, the function returns a negative value.
1724  */
1725 int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1726 {
1727         const struct hda_board_config *c;
1728
1729         if (codec->bus->modelname) {
1730                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1731                         if (c->modelname &&
1732                             ! strcmp(codec->bus->modelname, c->modelname)) {
1733                                 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1734                                 return c->config;
1735                         }
1736                 }
1737         }
1738
1739         if (codec->bus->pci) {
1740                 u16 subsystem_vendor, subsystem_device;
1741                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1742                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
1743                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1744                         if (c->pci_subvendor == subsystem_vendor &&
1745                             (! c->pci_subdevice /* all match */||
1746                              (c->pci_subdevice == subsystem_device))) {
1747                                 snd_printdd(KERN_INFO "hda_codec: PCI %x:%x, codec config %d is selected\n",
1748                                             subsystem_vendor, subsystem_device, c->config);
1749                                 return c->config;
1750                         }
1751                 }
1752         }
1753         return -1;
1754 }
1755
1756 /**
1757  * snd_hda_add_new_ctls - create controls from the array
1758  * @codec: the HDA codec
1759  * @knew: the array of struct snd_kcontrol_new
1760  *
1761  * This helper function creates and add new controls in the given array.
1762  * The array must be terminated with an empty entry as terminator.
1763  *
1764  * Returns 0 if successful, or a negative error code.
1765  */
1766 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
1767 {
1768         int err;
1769
1770         for (; knew->name; knew++) {
1771                 struct snd_kcontrol *kctl;
1772                 kctl = snd_ctl_new1(knew, codec);
1773                 if (! kctl)
1774                         return -ENOMEM;
1775                 err = snd_ctl_add(codec->bus->card, kctl);
1776                 if (err < 0) {
1777                         if (! codec->addr)
1778                                 return err;
1779                         kctl = snd_ctl_new1(knew, codec);
1780                         if (! kctl)
1781                                 return -ENOMEM;
1782                         kctl->id.device = codec->addr;
1783                         if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1784                                 return err;
1785                 }
1786         }
1787         return 0;
1788 }
1789
1790
1791 /*
1792  * Channel mode helper
1793  */
1794 int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinfo,
1795                          const struct hda_channel_mode *chmode, int num_chmodes)
1796 {
1797         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1798         uinfo->count = 1;
1799         uinfo->value.enumerated.items = num_chmodes;
1800         if (uinfo->value.enumerated.item >= num_chmodes)
1801                 uinfo->value.enumerated.item = num_chmodes - 1;
1802         sprintf(uinfo->value.enumerated.name, "%dch",
1803                 chmode[uinfo->value.enumerated.item].channels);
1804         return 0;
1805 }
1806
1807 int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1808                         const struct hda_channel_mode *chmode, int num_chmodes,
1809                         int max_channels)
1810 {
1811         int i;
1812
1813         for (i = 0; i < num_chmodes; i++) {
1814                 if (max_channels == chmode[i].channels) {
1815                         ucontrol->value.enumerated.item[0] = i;
1816                         break;
1817                 }
1818         }
1819         return 0;
1820 }
1821
1822 int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1823                         const struct hda_channel_mode *chmode, int num_chmodes,
1824                         int *max_channelsp)
1825 {
1826         unsigned int mode;
1827
1828         mode = ucontrol->value.enumerated.item[0];
1829         snd_assert(mode < num_chmodes, return -EINVAL);
1830         if (*max_channelsp == chmode[mode].channels && ! codec->in_resume)
1831                 return 0;
1832         /* change the current channel setting */
1833         *max_channelsp = chmode[mode].channels;
1834         if (chmode[mode].sequence)
1835                 snd_hda_sequence_write(codec, chmode[mode].sequence);
1836         return 1;
1837 }
1838
1839 /*
1840  * input MUX helper
1841  */
1842 int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo)
1843 {
1844         unsigned int index;
1845
1846         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1847         uinfo->count = 1;
1848         uinfo->value.enumerated.items = imux->num_items;
1849         index = uinfo->value.enumerated.item;
1850         if (index >= imux->num_items)
1851                 index = imux->num_items - 1;
1852         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1853         return 0;
1854 }
1855
1856 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1857                           struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
1858                           unsigned int *cur_val)
1859 {
1860         unsigned int idx;
1861
1862         idx = ucontrol->value.enumerated.item[0];
1863         if (idx >= imux->num_items)
1864                 idx = imux->num_items - 1;
1865         if (*cur_val == idx && ! codec->in_resume)
1866                 return 0;
1867         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1868                             imux->items[idx].index);
1869         *cur_val = idx;
1870         return 1;
1871 }
1872
1873
1874 /*
1875  * Multi-channel / digital-out PCM helper functions
1876  */
1877
1878 /*
1879  * open the digital out in the exclusive mode
1880  */
1881 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1882 {
1883         mutex_lock(&codec->spdif_mutex);
1884         if (mout->dig_out_used) {
1885                 mutex_unlock(&codec->spdif_mutex);
1886                 return -EBUSY; /* already being used */
1887         }
1888         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1889         mutex_unlock(&codec->spdif_mutex);
1890         return 0;
1891 }
1892
1893 /*
1894  * release the digital out
1895  */
1896 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1897 {
1898         mutex_lock(&codec->spdif_mutex);
1899         mout->dig_out_used = 0;
1900         mutex_unlock(&codec->spdif_mutex);
1901         return 0;
1902 }
1903
1904 /*
1905  * set up more restrictions for analog out
1906  */
1907 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1908                                   struct snd_pcm_substream *substream)
1909 {
1910         substream->runtime->hw.channels_max = mout->max_channels;
1911         return snd_pcm_hw_constraint_step(substream->runtime, 0,
1912                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1913 }
1914
1915 /*
1916  * set up the i/o for analog out
1917  * when the digital out is available, copy the front out to digital out, too.
1918  */
1919 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1920                                      unsigned int stream_tag,
1921                                      unsigned int format,
1922                                      struct snd_pcm_substream *substream)
1923 {
1924         hda_nid_t *nids = mout->dac_nids;
1925         int chs = substream->runtime->channels;
1926         int i;
1927
1928         mutex_lock(&codec->spdif_mutex);
1929         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1930                 if (chs == 2 &&
1931                     snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1932                     ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1933                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1934                         /* setup digital receiver */
1935                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1936                                                    stream_tag, 0, format);
1937                 } else {
1938                         mout->dig_out_used = 0;
1939                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1940                 }
1941         }
1942         mutex_unlock(&codec->spdif_mutex);
1943
1944         /* front */
1945         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1946         if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
1947                 /* headphone out will just decode front left/right (stereo) */
1948                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1949         /* extra outputs copied from front */
1950         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1951                 if (mout->extra_out_nid[i])
1952                         snd_hda_codec_setup_stream(codec,
1953                                                    mout->extra_out_nid[i],
1954                                                    stream_tag, 0, format);
1955
1956         /* surrounds */
1957         for (i = 1; i < mout->num_dacs; i++) {
1958                 if (chs >= (i + 1) * 2) /* independent out */
1959                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1960                                                    format);
1961                 else /* copy front */
1962                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1963                                                    format);
1964         }
1965         return 0;
1966 }
1967
1968 /*
1969  * clean up the setting for analog out
1970  */
1971 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1972 {
1973         hda_nid_t *nids = mout->dac_nids;
1974         int i;
1975
1976         for (i = 0; i < mout->num_dacs; i++)
1977                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1978         if (mout->hp_nid)
1979                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1980         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1981                 if (mout->extra_out_nid[i])
1982                         snd_hda_codec_setup_stream(codec,
1983                                                    mout->extra_out_nid[i],
1984                                                    0, 0, 0);
1985         mutex_lock(&codec->spdif_mutex);
1986         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1987                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1988                 mout->dig_out_used = 0;
1989         }
1990         mutex_unlock(&codec->spdif_mutex);
1991         return 0;
1992 }
1993
1994 /*
1995  * Helper for automatic ping configuration
1996  */
1997
1998 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
1999 {
2000         for (; *list; list++)
2001                 if (*list == nid)
2002                         return 1;
2003         return 0;
2004 }
2005
2006 /*
2007  * Parse all pin widgets and store the useful pin nids to cfg
2008  *
2009  * The number of line-outs or any primary output is stored in line_outs,
2010  * and the corresponding output pins are assigned to line_out_pins[],
2011  * in the order of front, rear, CLFE, side, ...
2012  *
2013  * If more extra outputs (speaker and headphone) are found, the pins are
2014  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
2015  * is detected, one of speaker of HP pins is assigned as the primary
2016  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
2017  * if any analog output exists.
2018  *
2019  * The analog input pins are assigned to input_pins array.
2020  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2021  * respectively.
2022  */
2023 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg,
2024                                  hda_nid_t *ignore_nids)
2025 {
2026         hda_nid_t nid, nid_start;
2027         int i, j, nodes;
2028         short seq, assoc_line_out, sequences[ARRAY_SIZE(cfg->line_out_pins)];
2029
2030         memset(cfg, 0, sizeof(*cfg));
2031
2032         memset(sequences, 0, sizeof(sequences));
2033         assoc_line_out = 0;
2034
2035         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2036         for (nid = nid_start; nid < nodes + nid_start; nid++) {
2037                 unsigned int wid_caps = get_wcaps(codec, nid);
2038                 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2039                 unsigned int def_conf;
2040                 short assoc, loc;
2041
2042                 /* read all default configuration for pin complex */
2043                 if (wid_type != AC_WID_PIN)
2044                         continue;
2045                 /* ignore the given nids (e.g. pc-beep returns error) */
2046                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2047                         continue;
2048
2049                 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
2050                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2051                         continue;
2052                 loc = get_defcfg_location(def_conf);
2053                 switch (get_defcfg_device(def_conf)) {
2054                 case AC_JACK_LINE_OUT:
2055                         seq = get_defcfg_sequence(def_conf);
2056                         assoc = get_defcfg_association(def_conf);
2057                         if (! assoc)
2058                                 continue;
2059                         if (! assoc_line_out)
2060                                 assoc_line_out = assoc;
2061                         else if (assoc_line_out != assoc)
2062                                 continue;
2063                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2064                                 continue;
2065                         cfg->line_out_pins[cfg->line_outs] = nid;
2066                         sequences[cfg->line_outs] = seq;
2067                         cfg->line_outs++;
2068                         break;
2069                 case AC_JACK_SPEAKER:
2070                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2071                                 continue;
2072                         cfg->speaker_pins[cfg->speaker_outs] = nid;
2073                         cfg->speaker_outs++;
2074                         break;
2075                 case AC_JACK_HP_OUT:
2076                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
2077                                 continue;
2078                         cfg->hp_pins[cfg->hp_outs] = nid;
2079                         cfg->hp_outs++;
2080                         break;
2081                 case AC_JACK_MIC_IN: {
2082                         int preferred, alt;
2083                         if (loc == AC_JACK_LOC_FRONT) {
2084                                 preferred = AUTO_PIN_FRONT_MIC;
2085                                 alt = AUTO_PIN_MIC;
2086                         } else {
2087                                 preferred = AUTO_PIN_MIC;
2088                                 alt = AUTO_PIN_FRONT_MIC;
2089                         }
2090                         if (!cfg->input_pins[preferred])
2091                                 cfg->input_pins[preferred] = nid;
2092                         else if (!cfg->input_pins[alt])
2093                                 cfg->input_pins[alt] = nid;
2094                         break;
2095                 }
2096                 case AC_JACK_LINE_IN:
2097                         if (loc == AC_JACK_LOC_FRONT)
2098                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2099                         else
2100                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
2101                         break;
2102                 case AC_JACK_CD:
2103                         cfg->input_pins[AUTO_PIN_CD] = nid;
2104                         break;
2105                 case AC_JACK_AUX:
2106                         cfg->input_pins[AUTO_PIN_AUX] = nid;
2107                         break;
2108                 case AC_JACK_SPDIF_OUT:
2109                         cfg->dig_out_pin = nid;
2110                         break;
2111                 case AC_JACK_SPDIF_IN:
2112                         cfg->dig_in_pin = nid;
2113                         break;
2114                 }
2115         }
2116
2117         /* sort by sequence */
2118         for (i = 0; i < cfg->line_outs; i++)
2119                 for (j = i + 1; j < cfg->line_outs; j++)
2120                         if (sequences[i] > sequences[j]) {
2121                                 seq = sequences[i];
2122                                 sequences[i] = sequences[j];
2123                                 sequences[j] = seq;
2124                                 nid = cfg->line_out_pins[i];
2125                                 cfg->line_out_pins[i] = cfg->line_out_pins[j];
2126                                 cfg->line_out_pins[j] = nid;
2127                         }
2128
2129         /* Reorder the surround channels
2130          * ALSA sequence is front/surr/clfe/side
2131          * HDA sequence is:
2132          *    4-ch: front/surr  =>  OK as it is
2133          *    6-ch: front/clfe/surr
2134          *    8-ch: front/clfe/side/surr
2135          */
2136         switch (cfg->line_outs) {
2137         case 3:
2138                 nid = cfg->line_out_pins[1];
2139                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2140                 cfg->line_out_pins[2] = nid;
2141                 break;
2142         case 4:
2143                 nid = cfg->line_out_pins[1];
2144                 cfg->line_out_pins[1] = cfg->line_out_pins[3];
2145                 cfg->line_out_pins[3] = cfg->line_out_pins[2];
2146                 cfg->line_out_pins[2] = nid;
2147                 break;
2148         }
2149
2150         /*
2151          * debug prints of the parsed results
2152          */
2153         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2154                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2155                    cfg->line_out_pins[2], cfg->line_out_pins[3],
2156                    cfg->line_out_pins[4]);
2157         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2158                    cfg->speaker_outs, cfg->speaker_pins[0],
2159                    cfg->speaker_pins[1], cfg->speaker_pins[2],
2160                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
2161         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2162                    cfg->hp_outs, cfg->hp_pins[0],
2163                    cfg->hp_pins[1], cfg->hp_pins[2],
2164                    cfg->hp_pins[3], cfg->hp_pins[4]);
2165         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2166                    " cd=0x%x, aux=0x%x\n",
2167                    cfg->input_pins[AUTO_PIN_MIC],
2168                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
2169                    cfg->input_pins[AUTO_PIN_LINE],
2170                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
2171                    cfg->input_pins[AUTO_PIN_CD],
2172                    cfg->input_pins[AUTO_PIN_AUX]);
2173
2174         /*
2175          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2176          * as a primary output
2177          */
2178         if (! cfg->line_outs) {
2179                 if (cfg->speaker_outs) {
2180                         cfg->line_outs = cfg->speaker_outs;
2181                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
2182                                sizeof(cfg->speaker_pins));
2183                         cfg->speaker_outs = 0;
2184                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2185                 } else if (cfg->hp_outs) {
2186                         cfg->line_outs = cfg->hp_outs;
2187                         memcpy(cfg->line_out_pins, cfg->hp_pins,
2188                                sizeof(cfg->hp_pins));
2189                         cfg->hp_outs = 0;
2190                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
2191                 }
2192         }
2193
2194         return 0;
2195 }
2196
2197 /* labels for input pins */
2198 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2199         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2200 };
2201
2202
2203 #ifdef CONFIG_PM
2204 /*
2205  * power management
2206  */
2207
2208 /**
2209  * snd_hda_suspend - suspend the codecs
2210  * @bus: the HDA bus
2211  * @state: suspsend state
2212  *
2213  * Returns 0 if successful.
2214  */
2215 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2216 {
2217         struct list_head *p;
2218
2219         /* FIXME: should handle power widget capabilities */
2220         list_for_each(p, &bus->codec_list) {
2221                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2222                 if (codec->patch_ops.suspend)
2223                         codec->patch_ops.suspend(codec, state);
2224                 hda_set_power_state(codec,
2225                                     codec->afg ? codec->afg : codec->mfg,
2226                                     AC_PWRST_D3);
2227         }
2228         return 0;
2229 }
2230
2231 EXPORT_SYMBOL(snd_hda_suspend);
2232
2233 /**
2234  * snd_hda_resume - resume the codecs
2235  * @bus: the HDA bus
2236  * @state: resume state
2237  *
2238  * Returns 0 if successful.
2239  */
2240 int snd_hda_resume(struct hda_bus *bus)
2241 {
2242         struct list_head *p;
2243
2244         list_for_each(p, &bus->codec_list) {
2245                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2246                 hda_set_power_state(codec,
2247                                     codec->afg ? codec->afg : codec->mfg,
2248                                     AC_PWRST_D0);
2249                 if (codec->patch_ops.resume)
2250                         codec->patch_ops.resume(codec);
2251         }
2252         return 0;
2253 }
2254
2255 EXPORT_SYMBOL(snd_hda_resume);
2256
2257 /**
2258  * snd_hda_resume_ctls - resume controls in the new control list
2259  * @codec: the HDA codec
2260  * @knew: the array of struct snd_kcontrol_new
2261  *
2262  * This function resumes the mixer controls in the struct snd_kcontrol_new array,
2263  * originally for snd_hda_add_new_ctls().
2264  * The array must be terminated with an empty entry as terminator.
2265  */
2266 int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2267 {
2268         struct snd_ctl_elem_value *val;
2269
2270         val = kmalloc(sizeof(*val), GFP_KERNEL);
2271         if (! val)
2272                 return -ENOMEM;
2273         codec->in_resume = 1;
2274         for (; knew->name; knew++) {
2275                 int i, count;
2276                 count = knew->count ? knew->count : 1;
2277                 for (i = 0; i < count; i++) {
2278                         memset(val, 0, sizeof(*val));
2279                         val->id.iface = knew->iface;
2280                         val->id.device = knew->device;
2281                         val->id.subdevice = knew->subdevice;
2282                         strcpy(val->id.name, knew->name);
2283                         val->id.index = knew->index ? knew->index : i;
2284                         /* Assume that get callback reads only from cache,
2285                          * not accessing to the real hardware
2286                          */
2287                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
2288                                 continue;
2289                         snd_ctl_elem_write(codec->bus->card, NULL, val);
2290                 }
2291         }
2292         codec->in_resume = 0;
2293         kfree(val);
2294         return 0;
2295 }
2296
2297 /**
2298  * snd_hda_resume_spdif_out - resume the digital out
2299  * @codec: the HDA codec
2300  */
2301 int snd_hda_resume_spdif_out(struct hda_codec *codec)
2302 {
2303         return snd_hda_resume_ctls(codec, dig_mixes);
2304 }
2305
2306 /**
2307  * snd_hda_resume_spdif_in - resume the digital in
2308  * @codec: the HDA codec
2309  */
2310 int snd_hda_resume_spdif_in(struct hda_codec *codec)
2311 {
2312         return snd_hda_resume_ctls(codec, dig_in_ctls);
2313 }
2314 #endif
2315
2316 /*
2317  *  INIT part
2318  */
2319
2320 static int __init alsa_hda_init(void)
2321 {
2322         return 0;
2323 }
2324
2325 static void __exit alsa_hda_exit(void)
2326 {
2327 }
2328
2329 module_init(alsa_hda_init)
2330 module_exit(alsa_hda_exit)