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         { 0x11d4, "Analog Devices" },
  55         { 0x13f6, "C-Media" },
  56         { 0x434d, "C-Media" },
  57         { 0x8384, "SigmaTel" },
  58         {} /* terminator */
  59 };
  60
  61 /* codec presets */
  62 #include "hda_patch.h"
  63
  64
  65 /**
  66  * snd_hda_codec_read - send a command and get the response
  67  * @codec: the HDA codec
  68  * @nid: NID to send the command
  69  * @direct: direct flag
  70  * @verb: the verb to send
  71  * @parm: the parameter for the verb
  72  *
  73  * Send a single command and read the corresponding response.
  74  *
  75  * Returns the obtained response value, or -1 for an error.
  76  */
  77 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, int direct,
  78                                 unsigned int verb, unsigned int parm)
  79 {
  80         unsigned int res;
  81         mutex_lock(&codec->bus->cmd_mutex);
  82         if (! codec->bus->ops.command(codec, nid, direct, verb, parm))
  83                 res = codec->bus->ops.get_response(codec);
  84         else
  85                 res = (unsigned int)-1;
  86         mutex_unlock(&codec->bus->cmd_mutex);
  87         return res;
  88 }
  89
  90 EXPORT_SYMBOL(snd_hda_codec_read);
  91
  92 /**
  93  * snd_hda_codec_write - send a single command without waiting for response
  94  * @codec: the HDA codec
  95  * @nid: NID to send the command
  96  * @direct: direct flag
  97  * @verb: the verb to send
  98  * @parm: the parameter for the verb
  99  *
 100  * Send a single command without waiting for response.
 101  *
 102  * Returns 0 if successful, or a negative error code.
 103  */
 104 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 105                          unsigned int verb, unsigned int parm)
 106 {
 107         int err;
 108         mutex_lock(&codec->bus->cmd_mutex);
 109         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
 110         mutex_unlock(&codec->bus->cmd_mutex);
 111         return err;
 112 }
 113
 114 EXPORT_SYMBOL(snd_hda_codec_write);
 115
 116 /**
 117  * snd_hda_sequence_write - sequence writes
 118  * @codec: the HDA codec
 119  * @seq: VERB array to send
 120  *
 121  * Send the commands sequentially from the given array.
 122  * The array must be terminated with NID=0.
 123  */
 124 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 125 {
 126         for (; seq->nid; seq++)
 127                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 128 }
 129
 130 EXPORT_SYMBOL(snd_hda_sequence_write);
 131
 132 /**
 133  * snd_hda_get_sub_nodes - get the range of sub nodes
 134  * @codec: the HDA codec
 135  * @nid: NID to parse
 136  * @start_id: the pointer to store the start NID
 137  *
 138  * Parse the NID and store the start NID of its sub-nodes.
 139  * Returns the number of sub-nodes.
 140  */
 141 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, hda_nid_t *start_id)
 142 {
 143         unsigned int parm;
 144
 145         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
 146         *start_id = (parm >> 16) & 0x7fff;
 147         return (int)(parm & 0x7fff);
 148 }
 149
 150 EXPORT_SYMBOL(snd_hda_get_sub_nodes);
 151
 152 /**
 153  * snd_hda_get_connections - get connection list
 154  * @codec: the HDA codec
 155  * @nid: NID to parse
 156  * @conn_list: connection list array
 157  * @max_conns: max. number of connections to store
 158  *
 159  * Parses the connection list of the given widget and stores the list
 160  * of NIDs.
 161  *
 162  * Returns the number of connections, or a negative error code.
 163  */
 164 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 165                             hda_nid_t *conn_list, int max_conns)
 166 {
 167         unsigned int parm;
 168         int i, conn_len, conns;
 169         unsigned int shift, num_elems, mask;
 170         hda_nid_t prev_nid;
 171
 172         snd_assert(conn_list && max_conns > 0, return -EINVAL);
 173
 174         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 175         if (parm & AC_CLIST_LONG) {
 176                 /* long form */
 177                 shift = 16;
 178                 num_elems = 2;
 179         } else {
 180                 /* short form */
 181                 shift = 8;
 182                 num_elems = 4;
 183         }
 184         conn_len = parm & AC_CLIST_LENGTH;
 185         mask = (1 << (shift-1)) - 1;
 186
 187         if (! conn_len)
 188                 return 0; /* no connection */
 189
 190         if (conn_len == 1) {
 191                 /* single connection */
 192                 parm = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONNECT_LIST, 0);
 193                 conn_list[0] = parm & mask;
 194                 return 1;
 195         }
 196
 197         /* multi connection */
 198         conns = 0;
 199         prev_nid = 0;
 200         for (i = 0; i < conn_len; i++) {
 201                 int range_val;
 202                 hda_nid_t val, n;
 203
 204                 if (i % num_elems == 0)
 205                         parm = snd_hda_codec_read(codec, nid, 0,
 206                                                   AC_VERB_GET_CONNECT_LIST, i);
 207                 range_val = !! (parm & (1 << (shift-1))); /* ranges */
 208                 val = parm & mask;
 209                 parm >>= shift;
 210                 if (range_val) {
 211                         /* ranges between the previous and this one */
 212                         if (! prev_nid || prev_nid >= val) {
 213                                 snd_printk(KERN_WARNING "hda_codec: invalid dep_range_val %x:%x\n", prev_nid, val);
 214                                 continue;
 215                         }
 216                         for (n = prev_nid + 1; n <= val; n++) {
 217                                 if (conns >= max_conns) {
 218                                         snd_printk(KERN_ERR "Too many connections\n");
 219                                         return -EINVAL;
 220                                 }
 221                                 conn_list[conns++] = n;
 222                         }
 223                 } else {
 224                         if (conns >= max_conns) {
 225                                 snd_printk(KERN_ERR "Too many connections\n");
 226                                 return -EINVAL;
 227                         }
 228                         conn_list[conns++] = val;
 229                 }
 230                 prev_nid = val;
 231         }
 232         return conns;
 233 }
 234
 235
 236 /**
 237  * snd_hda_queue_unsol_event - add an unsolicited event to queue
 238  * @bus: the BUS
 239  * @res: unsolicited event (lower 32bit of RIRB entry)
 240  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
 241  *
 242  * Adds the given event to the queue.  The events are processed in
 243  * the workqueue asynchronously.  Call this function in the interrupt
 244  * hanlder when RIRB receives an unsolicited event.
 245  *
 246  * Returns 0 if successful, or a negative error code.
 247  */
 248 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 249 {
 250         struct hda_bus_unsolicited *unsol;
 251         unsigned int wp;
 252
 253         if ((unsol = bus->unsol) == NULL)
 254                 return 0;
 255
 256         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
 257         unsol->wp = wp;
 258
 259         wp <<= 1;
 260         unsol->queue[wp] = res;
 261         unsol->queue[wp + 1] = res_ex;
 262
 263         queue_work(unsol->workq, &unsol->work);
 264
 265         return 0;
 266 }
 267
 268 EXPORT_SYMBOL(snd_hda_queue_unsol_event);
 269
 270 /*
 271  * process queueud unsolicited events
 272  */
 273 static void process_unsol_events(void *data)
 274 {
 275         struct hda_bus *bus = data;
 276         struct hda_bus_unsolicited *unsol = bus->unsol;
 277         struct hda_codec *codec;
 278         unsigned int rp, caddr, res;
 279
 280         while (unsol->rp != unsol->wp) {
 281                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
 282                 unsol->rp = rp;
 283                 rp <<= 1;
 284                 res = unsol->queue[rp];
 285                 caddr = unsol->queue[rp + 1];
 286                 if (! (caddr & (1 << 4))) /* no unsolicited event? */
 287                         continue;
 288                 codec = bus->caddr_tbl[caddr & 0x0f];
 289                 if (codec && codec->patch_ops.unsol_event)
 290                         codec->patch_ops.unsol_event(codec, res);
 291         }
 292 }
 293
 294 /*
 295  * initialize unsolicited queue
 296  */
 297 static int init_unsol_queue(struct hda_bus *bus)
 298 {
 299         struct hda_bus_unsolicited *unsol;
 300
 301         if (bus->unsol) /* already initialized */
 302                 return 0;
 303
 304         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
 305         if (! unsol) {
 306                 snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
 307                 return -ENOMEM;
 308         }
 309         unsol->workq = create_singlethread_workqueue("hda_codec");
 310         if (! unsol->workq) {
 311                 snd_printk(KERN_ERR "hda_codec: can't create workqueue\n");
 312                 kfree(unsol);
 313                 return -ENOMEM;
 314         }
 315         INIT_WORK(&unsol->work, process_unsol_events, bus);
 316         bus->unsol = unsol;
 317         return 0;
 318 }
 319
 320 /*
 321  * destructor
 322  */
 323 static void snd_hda_codec_free(struct hda_codec *codec);
 324
 325 static int snd_hda_bus_free(struct hda_bus *bus)
 326 {
 327         struct list_head *p, *n;
 328
 329         if (! bus)
 330                 return 0;
 331         if (bus->unsol) {
 332                 destroy_workqueue(bus->unsol->workq);
 333                 kfree(bus->unsol);
 334         }
 335         list_for_each_safe(p, n, &bus->codec_list) {
 336                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
 337                 snd_hda_codec_free(codec);
 338         }
 339         if (bus->ops.private_free)
 340                 bus->ops.private_free(bus);
 341         kfree(bus);
 342         return 0;
 343 }
 344
 345 static int snd_hda_bus_dev_free(struct snd_device *device)
 346 {
 347         struct hda_bus *bus = device->device_data;
 348         return snd_hda_bus_free(bus);
 349 }
 350
 351 /**
 352  * snd_hda_bus_new - create a HDA bus
 353  * @card: the card entry
 354  * @temp: the template for hda_bus information
 355  * @busp: the pointer to store the created bus instance
 356  *
 357  * Returns 0 if successful, or a negative error code.
 358  */
 359 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
 360                     struct hda_bus **busp)
 361 {
 362         struct hda_bus *bus;
 363         int err;
 364         static struct snd_device_ops dev_ops = {
 365                 .dev_free = snd_hda_bus_dev_free,
 366         };
 367
 368         snd_assert(temp, return -EINVAL);
 369         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
 370
 371         if (busp)
 372                 *busp = NULL;
 373
 374         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 375         if (bus == NULL) {
 376                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 377                 return -ENOMEM;
 378         }
 379
 380         bus->card = card;
 381         bus->private_data = temp->private_data;
 382         bus->pci = temp->pci;
 383         bus->modelname = temp->modelname;
 384         bus->ops = temp->ops;
 385
 386         mutex_init(&bus->cmd_mutex);
 387         INIT_LIST_HEAD(&bus->codec_list);
 388
 389         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
 390                 snd_hda_bus_free(bus);
 391                 return err;
 392         }
 393         if (busp)
 394                 *busp = bus;
 395         return 0;
 396 }
 397
 398 EXPORT_SYMBOL(snd_hda_bus_new);
 399
 400 /*
 401  * find a matching codec preset
 402  */
 403 static const struct hda_codec_preset *find_codec_preset(struct hda_codec *codec)
 404 {
 405         const struct hda_codec_preset **tbl, *preset;
 406
 407         for (tbl = hda_preset_tables; *tbl; tbl++) {
 408                 for (preset = *tbl; preset->id; preset++) {
 409                         u32 mask = preset->mask;
 410                         if (! mask)
 411                                 mask = ~0;
 412                         if (preset->id == (codec->vendor_id & mask) &&
 413                             (! preset->rev ||
 414                              preset->rev == codec->revision_id))
 415                                 return preset;
 416                 }
 417         }
 418         return NULL;
 419 }
 420
 421 /*
 422  * snd_hda_get_codec_name - store the codec name
 423  */
 424 void snd_hda_get_codec_name(struct hda_codec *codec,
 425                             char *name, int namelen)
 426 {
 427         const struct hda_vendor_id *c;
 428         const char *vendor = NULL;
 429         u16 vendor_id = codec->vendor_id >> 16;
 430         char tmp[16];
 431
 432         for (c = hda_vendor_ids; c->id; c++) {
 433                 if (c->id == vendor_id) {
 434                         vendor = c->name;
 435                         break;
 436                 }
 437         }
 438         if (! vendor) {
 439                 sprintf(tmp, "Generic %04x", vendor_id);
 440                 vendor = tmp;
 441         }
 442         if (codec->preset && codec->preset->name)
 443                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 444         else
 445                 snprintf(name, namelen, "%s ID %x", vendor, codec->vendor_id & 0xffff);
 446 }
 447
 448 /*
 449  * look for an AFG and MFG nodes
 450  */
 451 static void setup_fg_nodes(struct hda_codec *codec)
 452 {
 453         int i, total_nodes;
 454         hda_nid_t nid;
 455
 456         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 457         for (i = 0; i < total_nodes; i++, nid++) {
 458                 switch((snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE) & 0xff)) {
 459                 case AC_GRP_AUDIO_FUNCTION:
 460                         codec->afg = nid;
 461                         break;
 462                 case AC_GRP_MODEM_FUNCTION:
 463                         codec->mfg = nid;
 464                         break;
 465                 default:
 466                         break;
 467                 }
 468         }
 469 }
 470
 471 /*
 472  * read widget caps for each widget and store in cache
 473  */
 474 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 475 {
 476         int i;
 477         hda_nid_t nid;
 478
 479         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 480                                                  &codec->start_nid);
 481         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 482         if (! codec->wcaps)
 483                 return -ENOMEM;
 484         nid = codec->start_nid;
 485         for (i = 0; i < codec->num_nodes; i++, nid++)
 486                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 487                                                      AC_PAR_AUDIO_WIDGET_CAP);
 488         return 0;
 489 }
 490
 491
 492 /*
 493  * codec destructor
 494  */
 495 static void snd_hda_codec_free(struct hda_codec *codec)
 496 {
 497         if (! codec)
 498                 return;
 499         list_del(&codec->list);
 500         codec->bus->caddr_tbl[codec->addr] = NULL;
 501         if (codec->patch_ops.free)
 502                 codec->patch_ops.free(codec);
 503         kfree(codec->amp_info);
 504         kfree(codec->wcaps);
 505         kfree(codec);
 506 }
 507
 508 static void init_amp_hash(struct hda_codec *codec);
 509
 510 /**
 511  * snd_hda_codec_new - create a HDA codec
 512  * @bus: the bus to assign
 513  * @codec_addr: the codec address
 514  * @codecp: the pointer to store the generated codec
 515  *
 516  * Returns 0 if successful, or a negative error code.
 517  */
 518 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 519                       struct hda_codec **codecp)
 520 {
 521         struct hda_codec *codec;
 522         char component[13];
 523         int err;
 524
 525         snd_assert(bus, return -EINVAL);
 526         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 527
 528         if (bus->caddr_tbl[codec_addr]) {
 529                 snd_printk(KERN_ERR "hda_codec: address 0x%x is already occupied\n", codec_addr);
 530                 return -EBUSY;
 531         }
 532
 533         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 534         if (codec == NULL) {
 535                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 536                 return -ENOMEM;
 537         }
 538
 539         codec->bus = bus;
 540         codec->addr = codec_addr;
 541         mutex_init(&codec->spdif_mutex);
 542         init_amp_hash(codec);
 543
 544         list_add_tail(&codec->list, &bus->codec_list);
 545         bus->caddr_tbl[codec_addr] = codec;
 546
 547         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID);
 548         if (codec->vendor_id == -1)
 549                 /* read again, hopefully the access method was corrected
 550                  * in the last read...
 551                  */
 552                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 553                                                       AC_PAR_VENDOR_ID);
 554         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID);
 555         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID);
 556
 557         setup_fg_nodes(codec);
 558         if (! codec->afg && ! codec->mfg) {
 559                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 560                 snd_hda_codec_free(codec);
 561                 return -ENODEV;
 562         }
 563
 564         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 565                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 566                 snd_hda_codec_free(codec);
 567                 return -ENOMEM;
 568         }
 569
 570         if (! codec->subsystem_id) {
 571                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 572                 codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
 573                                                          AC_VERB_GET_SUBSYSTEM_ID,
 574                                                          0);
 575         }
 576
 577         codec->preset = find_codec_preset(codec);
 578         if (! *bus->card->mixername)
 579                 snd_hda_get_codec_name(codec, bus->card->mixername,
 580                                        sizeof(bus->card->mixername));
 581
 582         if (codec->preset && codec->preset->patch)
 583                 err = codec->preset->patch(codec);
 584         else
 585                 err = snd_hda_parse_generic_codec(codec);
 586         if (err < 0) {
 587                 snd_hda_codec_free(codec);
 588                 return err;
 589         }
 590
 591         if (codec->patch_ops.unsol_event)
 592                 init_unsol_queue(bus);
 593
 594         snd_hda_codec_proc_new(codec);
 595
 596         sprintf(component, "HDA:%08x", codec->vendor_id);
 597         snd_component_add(codec->bus->card, component);
 598
 599         if (codecp)
 600                 *codecp = codec;
 601         return 0;
 602 }
 603
 604 EXPORT_SYMBOL(snd_hda_codec_new);
 605
 606 /**
 607  * snd_hda_codec_setup_stream - set up the codec for streaming
 608  * @codec: the CODEC to set up
 609  * @nid: the NID to set up
 610  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 611  * @channel_id: channel id to pass, zero based.
 612  * @format: stream format.
 613  */
 614 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag,
 615                                 int channel_id, int format)
 616 {
 617         if (! nid)
 618                 return;
 619
 620         snd_printdd("hda_codec_setup_stream: NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 621                     nid, stream_tag, channel_id, format);
 622         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 623                             (stream_tag << 4) | channel_id);
 624         msleep(1);
 625         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 626 }
 627
 628 EXPORT_SYMBOL(snd_hda_codec_setup_stream);
 629
 630 /*
 631  * amp access functions
 632  */
 633
 634 /* FIXME: more better hash key? */
 635 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 636 #define INFO_AMP_CAPS   (1<<0)
 637 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 638
 639 /* initialize the hash table */
 640 static void init_amp_hash(struct hda_codec *codec)
 641 {
 642         memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
 643         codec->num_amp_entries = 0;
 644         codec->amp_info_size = 0;
 645         codec->amp_info = NULL;
 646 }
 647
 648 /* query the hash.  allocate an entry if not found. */
 649 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 650 {
 651         u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
 652         u16 cur = codec->amp_hash[idx];
 653         struct hda_amp_info *info;
 654
 655         while (cur != 0xffff) {
 656                 info = &codec->amp_info[cur];
 657                 if (info->key == key)
 658                         return info;
 659                 cur = info->next;
 660         }
 661
 662         /* add a new hash entry */
 663         if (codec->num_amp_entries >= codec->amp_info_size) {
 664                 /* reallocate the array */
 665                 int new_size = codec->amp_info_size + 64;
 666                 struct hda_amp_info *new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
 667                                                         GFP_KERNEL);
 668                 if (! new_info) {
 669                         snd_printk(KERN_ERR "hda_codec: can't malloc amp_info\n");
 670                         return NULL;
 671                 }
 672                 if (codec->amp_info) {
 673                         memcpy(new_info, codec->amp_info,
 674                                codec->amp_info_size * sizeof(struct hda_amp_info));
 675                         kfree(codec->amp_info);
 676                 }
 677                 codec->amp_info_size = new_size;
 678                 codec->amp_info = new_info;
 679         }
 680         cur = codec->num_amp_entries++;
 681         info = &codec->amp_info[cur];
 682         info->key = key;
 683         info->status = 0; /* not initialized yet */
 684         info->next = codec->amp_hash[idx];
 685         codec->amp_hash[idx] = cur;
 686
 687         return info;
 688 }
 689
 690 /*
 691  * query AMP capabilities for the given widget and direction
 692  */
 693 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 694 {
 695         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 696
 697         if (! info)
 698                 return 0;
 699         if (! (info->status & INFO_AMP_CAPS)) {
 700                 if (! (get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 701                         nid = codec->afg;
 702                 info->amp_caps = snd_hda_param_read(codec, nid, direction == HDA_OUTPUT ?
 703                                                     AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP);
 704                 info->status |= INFO_AMP_CAPS;
 705         }
 706         return info->amp_caps;
 707 }
 708
 709 /*
 710  * read the current volume to info
 711  * if the cache exists, read the cache value.
 712  */
 713 static unsigned int get_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 714                          hda_nid_t nid, int ch, int direction, int index)
 715 {
 716         u32 val, parm;
 717
 718         if (info->status & INFO_AMP_VOL(ch))
 719                 return info->vol[ch];
 720
 721         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 722         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 723         parm |= index;
 724         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_AMP_GAIN_MUTE, parm);
 725         info->vol[ch] = val & 0xff;
 726         info->status |= INFO_AMP_VOL(ch);
 727         return info->vol[ch];
 728 }
 729
 730 /*
 731  * write the current volume in info to the h/w and update the cache
 732  */
 733 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 734                          hda_nid_t nid, int ch, int direction, int index, int val)
 735 {
 736         u32 parm;
 737
 738         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
 739         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
 740         parm |= index << AC_AMP_SET_INDEX_SHIFT;
 741         parm |= val;
 742         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
 743         info->vol[ch] = val;
 744 }
 745
 746 /*
 747  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 748  */
 749 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 750                            int direction, int index)
 751 {
 752         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
 753         if (! info)
 754                 return 0;
 755         return get_vol_mute(codec, info, nid, ch, direction, index);
 756 }
 757
 758 /*
 759  * update the AMP value, mask = bit mask to set, val = the value
 760  */
 761 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 762                              int direction, int idx, int mask, int val)
 763 {
 764         struct hda_amp_info *info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
 765
 766         if (! info)
 767                 return 0;
 768         val &= mask;
 769         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
 770         if (info->vol[ch] == val && ! codec->in_resume)
 771                 return 0;
 772         put_vol_mute(codec, info, nid, ch, direction, idx, val);
 773         return 1;
 774 }
 775
 776
 777 /*
 778  * AMP control callbacks
 779  */
 780 /* retrieve parameters from private_value */
 781 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 782 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 783 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 784 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 785
 786 /* volume */
 787 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 788 {
 789         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 790         u16 nid = get_amp_nid(kcontrol);
 791         u8 chs = get_amp_channels(kcontrol);
 792         int dir = get_amp_direction(kcontrol);
 793         u32 caps;
 794
 795         caps = query_amp_caps(codec, nid, dir);
 796         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT; /* num steps */
 797         if (! caps) {
 798                 printk(KERN_WARNING "hda_codec: num_steps = 0 for NID=0x%x\n", nid);
 799                 return -EINVAL;
 800         }
 801         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 802         uinfo->count = chs == 3 ? 2 : 1;
 803         uinfo->value.integer.min = 0;
 804         uinfo->value.integer.max = caps;
 805         return 0;
 806 }
 807
 808 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 809 {
 810         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 811         hda_nid_t nid = get_amp_nid(kcontrol);
 812         int chs = get_amp_channels(kcontrol);
 813         int dir = get_amp_direction(kcontrol);
 814         int idx = get_amp_index(kcontrol);
 815         long *valp = ucontrol->value.integer.value;
 816
 817         if (chs & 1)
 818                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
 819         if (chs & 2)
 820                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
 821         return 0;
 822 }
 823
 824 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 825 {
 826         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 827         hda_nid_t nid = get_amp_nid(kcontrol);
 828         int chs = get_amp_channels(kcontrol);
 829         int dir = get_amp_direction(kcontrol);
 830         int idx = get_amp_index(kcontrol);
 831         long *valp = ucontrol->value.integer.value;
 832         int change = 0;
 833
 834         if (chs & 1) {
 835                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 836                                                   0x7f, *valp);
 837                 valp++;
 838         }
 839         if (chs & 2)
 840                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 841                                                    0x7f, *valp);
 842         return change;
 843 }
 844
 845 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 846                           unsigned int size, unsigned int __user *_tlv)
 847 {
 848         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 849         hda_nid_t nid = get_amp_nid(kcontrol);
 850         int dir = get_amp_direction(kcontrol);
 851         u32 caps, val1, val2;
 852
 853         if (size < 4 * sizeof(unsigned int))
 854                 return -ENOMEM;
 855         caps = query_amp_caps(codec, nid, dir);
 856         val2 = (((caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT) + 1) * 25;
 857         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
 858         val1 = ((int)val1) * ((int)val2);
 859         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
 860                 return -EFAULT;
 861         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
 862                 return -EFAULT;
 863         if (put_user(val1, _tlv + 2))
 864                 return -EFAULT;
 865         if (put_user(val2, _tlv + 3))
 866                 return -EFAULT;
 867         return 0;
 868 }
 869
 870 /* switch */
 871 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 872 {
 873         int chs = get_amp_channels(kcontrol);
 874
 875         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 876         uinfo->count = chs == 3 ? 2 : 1;
 877         uinfo->value.integer.min = 0;
 878         uinfo->value.integer.max = 1;
 879         return 0;
 880 }
 881
 882 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 883 {
 884         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 885         hda_nid_t nid = get_amp_nid(kcontrol);
 886         int chs = get_amp_channels(kcontrol);
 887         int dir = get_amp_direction(kcontrol);
 888         int idx = get_amp_index(kcontrol);
 889         long *valp = ucontrol->value.integer.value;
 890
 891         if (chs & 1)
 892                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x80) ? 0 : 1;
 893         if (chs & 2)
 894                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x80) ? 0 : 1;
 895         return 0;
 896 }
 897
 898 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 899 {
 900         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 901         hda_nid_t nid = get_amp_nid(kcontrol);
 902         int chs = get_amp_channels(kcontrol);
 903         int dir = get_amp_direction(kcontrol);
 904         int idx = get_amp_index(kcontrol);
 905         long *valp = ucontrol->value.integer.value;
 906         int change = 0;
 907
 908         if (chs & 1) {
 909                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 910                                                   0x80, *valp ? 0 : 0x80);
 911                 valp++;
 912         }
 913         if (chs & 2)
 914                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 915                                                    0x80, *valp ? 0 : 0x80);
 916
 917         return change;
 918 }
 919
 920 /*
 921  * bound volume controls
 922  *
 923  * bind multiple volumes (# indices, from 0)
 924  */
 925
 926 #define AMP_VAL_IDX_SHIFT       19
 927 #define AMP_VAL_IDX_MASK        (0x0f<<19)
 928
 929 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 930 {
 931         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 932         unsigned long pval;
 933         int err;
 934
 935         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 936         pval = kcontrol->private_value;
 937         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
 938         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
 939         kcontrol->private_value = pval;
 940         mutex_unlock(&codec->spdif_mutex);
 941         return err;
 942 }
 943
 944 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 945 {
 946         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 947         unsigned long pval;
 948         int i, indices, err = 0, change = 0;
 949
 950         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 951         pval = kcontrol->private_value;
 952         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
 953         for (i = 0; i < indices; i++) {
 954                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
 955                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
 956                 if (err < 0)
 957                         break;
 958                 change |= err;
 959         }
 960         kcontrol->private_value = pval;
 961         mutex_unlock(&codec->spdif_mutex);
 962         return err < 0 ? err : change;
 963 }
 964
 965 /*
 966  * SPDIF out controls
 967  */
 968
 969 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 970 {
 971         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 972         uinfo->count = 1;
 973         return 0;
 974 }
 975
 976 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 977 {
 978         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 979                                            IEC958_AES0_NONAUDIO |
 980                                            IEC958_AES0_CON_EMPHASIS_5015 |
 981                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 982         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 983                                            IEC958_AES1_CON_ORIGINAL;
 984         return 0;
 985 }
 986
 987 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 988 {
 989         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 990                                            IEC958_AES0_NONAUDIO |
 991                                            IEC958_AES0_PRO_EMPHASIS_5015;
 992         return 0;
 993 }
 994
 995 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 996 {
 997         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 998
 999         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1000         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1001         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1002         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1003
1004         return 0;
1005 }
1006
1007 /* convert from SPDIF status bits to HDA SPDIF bits
1008  * bit 0 (DigEn) is always set zero (to be filled later)
1009  */
1010 static unsigned short convert_from_spdif_status(unsigned int sbits)
1011 {
1012         unsigned short val = 0;
1013
1014         if (sbits & IEC958_AES0_PROFESSIONAL)
1015                 val |= 1 << 6;
1016         if (sbits & IEC958_AES0_NONAUDIO)
1017                 val |= 1 << 5;
1018         if (sbits & IEC958_AES0_PROFESSIONAL) {
1019                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
1020                         val |= 1 << 3;
1021         } else {
1022                 if ((sbits & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
1023                         val |= 1 << 3;
1024                 if (! (sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1025                         val |= 1 << 4;
1026                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1027                         val |= 1 << 7;
1028                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1029         }
1030         return val;
1031 }
1032
1033 /* convert to SPDIF status bits from HDA SPDIF bits
1034  */
1035 static unsigned int convert_to_spdif_status(unsigned short val)
1036 {
1037         unsigned int sbits = 0;
1038
1039         if (val & (1 << 5))
1040                 sbits |= IEC958_AES0_NONAUDIO;
1041         if (val & (1 << 6))
1042                 sbits |= IEC958_AES0_PROFESSIONAL;
1043         if (sbits & IEC958_AES0_PROFESSIONAL) {
1044                 if (sbits & (1 << 3))
1045                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1046         } else {
1047                 if (val & (1 << 3))
1048                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1049                 if (! (val & (1 << 4)))
1050                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1051                 if (val & (1 << 7))
1052                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1053                 sbits |= val & (0x7f << 8);
1054         }
1055         return sbits;
1056 }
1057
1058 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1059 {
1060         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1061         hda_nid_t nid = kcontrol->private_value;
1062         unsigned short val;
1063         int change;
1064
1065         mutex_lock(&codec->spdif_mutex);
1066         codec->spdif_status = ucontrol->value.iec958.status[0] |
1067                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1068                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1069                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1070         val = convert_from_spdif_status(codec->spdif_status);
1071         val |= codec->spdif_ctls & 1;
1072         change = codec->spdif_ctls != val;
1073         codec->spdif_ctls = val;
1074
1075         if (change || codec->in_resume) {
1076                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1077                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, val >> 8);
1078         }
1079
1080         mutex_unlock(&codec->spdif_mutex);
1081         return change;
1082 }
1083
1084 static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1085 {
1086         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1087         uinfo->count = 1;
1088         uinfo->value.integer.min = 0;
1089         uinfo->value.integer.max = 1;
1090         return 0;
1091 }
1092
1093 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1094 {
1095         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1096
1097         ucontrol->value.integer.value[0] = codec->spdif_ctls & 1;
1098         return 0;
1099 }
1100
1101 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1102 {
1103         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1104         hda_nid_t nid = kcontrol->private_value;
1105         unsigned short val;
1106         int change;
1107
1108         mutex_lock(&codec->spdif_mutex);
1109         val = codec->spdif_ctls & ~1;
1110         if (ucontrol->value.integer.value[0])
1111                 val |= 1;
1112         change = codec->spdif_ctls != val;
1113         if (change || codec->in_resume) {
1114                 codec->spdif_ctls = val;
1115                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val & 0xff);
1116                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
1117                                     AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
1118                                     AC_AMP_SET_OUTPUT | ((val & 1) ? 0 : 0x80));
1119         }
1120         mutex_unlock(&codec->spdif_mutex);
1121         return change;
1122 }
1123
1124 static struct snd_kcontrol_new dig_mixes[] = {
1125         {
1126                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1127                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1128                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1129                 .info = snd_hda_spdif_mask_info,
1130                 .get = snd_hda_spdif_cmask_get,
1131         },
1132         {
1133                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1134                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1135                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1136                 .info = snd_hda_spdif_mask_info,
1137                 .get = snd_hda_spdif_pmask_get,
1138         },
1139         {
1140                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1141                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1142                 .info = snd_hda_spdif_mask_info,
1143                 .get = snd_hda_spdif_default_get,
1144                 .put = snd_hda_spdif_default_put,
1145         },
1146         {
1147                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1148                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1149                 .info = snd_hda_spdif_out_switch_info,
1150                 .get = snd_hda_spdif_out_switch_get,
1151                 .put = snd_hda_spdif_out_switch_put,
1152         },
1153         { } /* end */
1154 };
1155
1156 /**
1157  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1158  * @codec: the HDA codec
1159  * @nid: audio out widget NID
1160  *
1161  * Creates controls related with the SPDIF output.
1162  * Called from each patch supporting the SPDIF out.
1163  *
1164  * Returns 0 if successful, or a negative error code.
1165  */
1166 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1167 {
1168         int err;
1169         struct snd_kcontrol *kctl;
1170         struct snd_kcontrol_new *dig_mix;
1171
1172         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1173                 kctl = snd_ctl_new1(dig_mix, codec);
1174                 kctl->private_value = nid;
1175                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1176                         return err;
1177         }
1178         codec->spdif_ctls = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1179         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1180         return 0;
1181 }
1182
1183 /*
1184  * SPDIF input
1185  */
1186
1187 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1188
1189 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1190 {
1191         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1192
1193         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1194         return 0;
1195 }
1196
1197 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1198 {
1199         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1200         hda_nid_t nid = kcontrol->private_value;
1201         unsigned int val = !!ucontrol->value.integer.value[0];
1202         int change;
1203
1204         mutex_lock(&codec->spdif_mutex);
1205         change = codec->spdif_in_enable != val;
1206         if (change || codec->in_resume) {
1207                 codec->spdif_in_enable = val;
1208                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1, val);
1209         }
1210         mutex_unlock(&codec->spdif_mutex);
1211         return change;
1212 }
1213
1214 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1215 {
1216         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1217         hda_nid_t nid = kcontrol->private_value;
1218         unsigned short val;
1219         unsigned int sbits;
1220
1221         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1222         sbits = convert_to_spdif_status(val);
1223         ucontrol->value.iec958.status[0] = sbits;
1224         ucontrol->value.iec958.status[1] = sbits >> 8;
1225         ucontrol->value.iec958.status[2] = sbits >> 16;
1226         ucontrol->value.iec958.status[3] = sbits >> 24;
1227         return 0;
1228 }
1229
1230 static struct snd_kcontrol_new dig_in_ctls[] = {
1231         {
1232                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1233                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1234                 .info = snd_hda_spdif_in_switch_info,
1235                 .get = snd_hda_spdif_in_switch_get,
1236                 .put = snd_hda_spdif_in_switch_put,
1237         },
1238         {
1239                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1240                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1241                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1242                 .info = snd_hda_spdif_mask_info,
1243                 .get = snd_hda_spdif_in_status_get,
1244         },
1245         { } /* end */
1246 };
1247
1248 /**
1249  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1250  * @codec: the HDA codec
1251  * @nid: audio in widget NID
1252  *
1253  * Creates controls related with the SPDIF input.
1254  * Called from each patch supporting the SPDIF in.
1255  *
1256  * Returns 0 if successful, or a negative error code.
1257  */
1258 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1259 {
1260         int err;
1261         struct snd_kcontrol *kctl;
1262         struct snd_kcontrol_new *dig_mix;
1263
1264         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1265                 kctl = snd_ctl_new1(dig_mix, codec);
1266                 kctl->private_value = nid;
1267                 if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1268                         return err;
1269         }
1270         codec->spdif_in_enable = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) & 1;
1271         return 0;
1272 }
1273
1274
1275 /*
1276  * set power state of the codec
1277  */
1278 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1279                                 unsigned int power_state)
1280 {
1281         hda_nid_t nid, nid_start;
1282         int nodes;
1283
1284         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1285                             power_state);
1286
1287         nodes = snd_hda_get_sub_nodes(codec, fg, &nid_start);
1288         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1289                 if (get_wcaps(codec, nid) & AC_WCAP_POWER)
1290                         snd_hda_codec_write(codec, nid, 0,
1291                                             AC_VERB_SET_POWER_STATE,
1292                                             power_state);
1293         }
1294
1295         if (power_state == AC_PWRST_D0)
1296                 msleep(10);
1297 }
1298
1299
1300 /**
1301  * snd_hda_build_controls - build mixer controls
1302  * @bus: the BUS
1303  *
1304  * Creates mixer controls for each codec included in the bus.
1305  *
1306  * Returns 0 if successful, otherwise a negative error code.
1307  */
1308 int snd_hda_build_controls(struct hda_bus *bus)
1309 {
1310         struct list_head *p;
1311
1312         /* build controls */
1313         list_for_each(p, &bus->codec_list) {
1314                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1315                 int err;
1316                 if (! codec->patch_ops.build_controls)
1317                         continue;
1318                 err = codec->patch_ops.build_controls(codec);
1319                 if (err < 0)
1320                         return err;
1321         }
1322
1323         /* initialize */
1324         list_for_each(p, &bus->codec_list) {
1325                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1326                 int err;
1327                 hda_set_power_state(codec,
1328                                     codec->afg ? codec->afg : codec->mfg,
1329                                     AC_PWRST_D0);
1330                 if (! codec->patch_ops.init)
1331                         continue;
1332                 err = codec->patch_ops.init(codec);
1333                 if (err < 0)
1334                         return err;
1335         }
1336         return 0;
1337 }
1338
1339 EXPORT_SYMBOL(snd_hda_build_controls);
1340
1341 /*
1342  * stream formats
1343  */
1344 struct hda_rate_tbl {
1345         unsigned int hz;
1346         unsigned int alsa_bits;
1347         unsigned int hda_fmt;
1348 };
1349
1350 static struct hda_rate_tbl rate_bits[] = {
1351         /* rate in Hz, ALSA rate bitmask, HDA format value */
1352
1353         /* autodetected value used in snd_hda_query_supported_pcm */
1354         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1355         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1356         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1357         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1358         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1359         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1360         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1361         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1362         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1363         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1364         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1365
1366         /* not autodetected value */
1367         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
1368
1369         { 0 } /* terminator */
1370 };
1371
1372 /**
1373  * snd_hda_calc_stream_format - calculate format bitset
1374  * @rate: the sample rate
1375  * @channels: the number of channels
1376  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1377  * @maxbps: the max. bps
1378  *
1379  * Calculate the format bitset from the given rate, channels and th PCM format.
1380  *
1381  * Return zero if invalid.
1382  */
1383 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1384                                         unsigned int channels,
1385                                         unsigned int format,
1386                                         unsigned int maxbps)
1387 {
1388         int i;
1389         unsigned int val = 0;
1390
1391         for (i = 0; rate_bits[i].hz; i++)
1392                 if (rate_bits[i].hz == rate) {
1393                         val = rate_bits[i].hda_fmt;
1394                         break;
1395                 }
1396         if (! rate_bits[i].hz) {
1397                 snd_printdd("invalid rate %d\n", rate);
1398                 return 0;
1399         }
1400
1401         if (channels == 0 || channels > 8) {
1402                 snd_printdd("invalid channels %d\n", channels);
1403                 return 0;
1404         }
1405         val |= channels - 1;
1406
1407         switch (snd_pcm_format_width(format)) {
1408         case 8:  val |= 0x00; break;
1409         case 16: val |= 0x10; break;
1410         case 20:
1411         case 24:
1412         case 32:
1413                 if (maxbps >= 32)
1414                         val |= 0x40;
1415                 else if (maxbps >= 24)
1416                         val |= 0x30;
1417                 else
1418                         val |= 0x20;
1419                 break;
1420         default:
1421                 snd_printdd("invalid format width %d\n", snd_pcm_format_width(format));
1422                 return 0;
1423         }
1424
1425         return val;
1426 }
1427
1428 EXPORT_SYMBOL(snd_hda_calc_stream_format);
1429
1430 /**
1431  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1432  * @codec: the HDA codec
1433  * @nid: NID to query
1434  * @ratesp: the pointer to store the detected rate bitflags
1435  * @formatsp: the pointer to store the detected formats
1436  * @bpsp: the pointer to store the detected format widths
1437  *
1438  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1439  * or @bsps argument is ignored.
1440  *
1441  * Returns 0 if successful, otherwise a negative error code.
1442  */
1443 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1444                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1445 {
1446         int i;
1447         unsigned int val, streams;
1448
1449         val = 0;
1450         if (nid != codec->afg &&
1451             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1452                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1453                 if (val == -1)
1454                         return -EIO;
1455         }
1456         if (! val)
1457                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1458
1459         if (ratesp) {
1460                 u32 rates = 0;
1461                 for (i = 0; rate_bits[i].hz; i++) {
1462                         if (val & (1 << i))
1463                                 rates |= rate_bits[i].alsa_bits;
1464                 }
1465                 *ratesp = rates;
1466         }
1467
1468         if (formatsp || bpsp) {
1469                 u64 formats = 0;
1470                 unsigned int bps;
1471                 unsigned int wcaps;
1472
1473                 wcaps = get_wcaps(codec, nid);
1474                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1475                 if (streams == -1)
1476                         return -EIO;
1477                 if (! streams) {
1478                         streams = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1479                         if (streams == -1)
1480                                 return -EIO;
1481                 }
1482
1483                 bps = 0;
1484                 if (streams & AC_SUPFMT_PCM) {
1485                         if (val & AC_SUPPCM_BITS_8) {
1486                                 formats |= SNDRV_PCM_FMTBIT_U8;
1487                                 bps = 8;
1488                         }
1489                         if (val & AC_SUPPCM_BITS_16) {
1490                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1491                                 bps = 16;
1492                         }
1493                         if (wcaps & AC_WCAP_DIGITAL) {
1494                                 if (val & AC_SUPPCM_BITS_32)
1495                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1496                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1497                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1498                                 if (val & AC_SUPPCM_BITS_24)
1499                                         bps = 24;
1500                                 else if (val & AC_SUPPCM_BITS_20)
1501                                         bps = 20;
1502                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|AC_SUPPCM_BITS_32)) {
1503                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1504                                 if (val & AC_SUPPCM_BITS_32)
1505                                         bps = 32;
1506                                 else if (val & AC_SUPPCM_BITS_20)
1507                                         bps = 20;
1508                                 else if (val & AC_SUPPCM_BITS_24)
1509                                         bps = 24;
1510                         }
1511                 }
1512                 else if (streams == AC_SUPFMT_FLOAT32) { /* should be exclusive */
1513                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1514                         bps = 32;
1515                 } else if (streams == AC_SUPFMT_AC3) { /* should be exclusive */
1516                         /* temporary hack: we have still no proper support
1517                          * for the direct AC3 stream...
1518                          */
1519                         formats |= SNDRV_PCM_FMTBIT_U8;
1520                         bps = 8;
1521                 }
1522                 if (formatsp)
1523                         *formatsp = formats;
1524                 if (bpsp)
1525                         *bpsp = bps;
1526         }
1527
1528         return 0;
1529 }
1530
1531 /**
1532  * snd_hda_is_supported_format - check whether the given node supports the format val
1533  *
1534  * Returns 1 if supported, 0 if not.
1535  */
1536 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1537                                 unsigned int format)
1538 {
1539         int i;
1540         unsigned int val = 0, rate, stream;
1541
1542         if (nid != codec->afg &&
1543             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1544                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1545                 if (val == -1)
1546                         return 0;
1547         }
1548         if (! val) {
1549                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1550                 if (val == -1)
1551                         return 0;
1552         }
1553
1554         rate = format & 0xff00;
1555         for (i = 0; rate_bits[i].hz; i++)
1556                 if (rate_bits[i].hda_fmt == rate) {
1557                         if (val & (1 << i))
1558                                 break;
1559                         return 0;
1560                 }
1561         if (! rate_bits[i].hz)
1562                 return 0;
1563
1564         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1565         if (stream == -1)
1566                 return 0;
1567         if (! stream && nid != codec->afg)
1568                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1569         if (! stream || stream == -1)
1570                 return 0;
1571
1572         if (stream & AC_SUPFMT_PCM) {
1573                 switch (format & 0xf0) {
1574                 case 0x00:
1575                         if (! (val & AC_SUPPCM_BITS_8))
1576                                 return 0;
1577                         break;
1578                 case 0x10:
1579                         if (! (val & AC_SUPPCM_BITS_16))
1580                                 return 0;
1581                         break;
1582                 case 0x20:
1583                         if (! (val & AC_SUPPCM_BITS_20))
1584                                 return 0;
1585                         break;
1586                 case 0x30:
1587                         if (! (val & AC_SUPPCM_BITS_24))
1588                                 return 0;
1589                         break;
1590                 case 0x40:
1591                         if (! (val & AC_SUPPCM_BITS_32))
1592                                 return 0;
1593                         break;
1594                 default:
1595                         return 0;
1596                 }
1597         } else {
1598                 /* FIXME: check for float32 and AC3? */
1599         }
1600
1601         return 1;
1602 }
1603
1604 /*
1605  * PCM stuff
1606  */
1607 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1608                                       struct hda_codec *codec,
1609                                       struct snd_pcm_substream *substream)
1610 {
1611         return 0;
1612 }
1613
1614 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1615                                    struct hda_codec *codec,
1616                                    unsigned int stream_tag,
1617                                    unsigned int format,
1618                                    struct snd_pcm_substream *substream)
1619 {
1620         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1621         return 0;
1622 }
1623
1624 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1625                                    struct hda_codec *codec,
1626                                    struct snd_pcm_substream *substream)
1627 {
1628         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1629         return 0;
1630 }
1631
1632 static int set_pcm_default_values(struct hda_codec *codec, struct hda_pcm_stream *info)
1633 {
1634         if (info->nid) {
1635                 /* query support PCM information from the given NID */
1636                 if (! info->rates || ! info->formats)
1637                         snd_hda_query_supported_pcm(codec, info->nid,
1638                                                     info->rates ? NULL : &info->rates,
1639                                                     info->formats ? NULL : &info->formats,
1640                                                     info->maxbps ? NULL : &info->maxbps);
1641         }
1642         if (info->ops.open == NULL)
1643                 info->ops.open = hda_pcm_default_open_close;
1644         if (info->ops.close == NULL)
1645                 info->ops.close = hda_pcm_default_open_close;
1646         if (info->ops.prepare == NULL) {
1647                 snd_assert(info->nid, return -EINVAL);
1648                 info->ops.prepare = hda_pcm_default_prepare;
1649         }
1650         if (info->ops.cleanup == NULL) {
1651                 snd_assert(info->nid, return -EINVAL);
1652                 info->ops.cleanup = hda_pcm_default_cleanup;
1653         }
1654         return 0;
1655 }
1656
1657 /**
1658  * snd_hda_build_pcms - build PCM information
1659  * @bus: the BUS
1660  *
1661  * Create PCM information for each codec included in the bus.
1662  *
1663  * The build_pcms codec patch is requested to set up codec->num_pcms and
1664  * codec->pcm_info properly.  The array is referred by the top-level driver
1665  * to create its PCM instances.
1666  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1667  * callback.
1668  *
1669  * At least, substreams, channels_min and channels_max must be filled for
1670  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1671  * When rates and/or formats are zero, the supported values are queried
1672  * from the given nid.  The nid is used also by the default ops.prepare
1673  * and ops.cleanup callbacks.
1674  *
1675  * The driver needs to call ops.open in its open callback.  Similarly,
1676  * ops.close is supposed to be called in the close callback.
1677  * ops.prepare should be called in the prepare or hw_params callback
1678  * with the proper parameters for set up.
1679  * ops.cleanup should be called in hw_free for clean up of streams.
1680  *
1681  * This function returns 0 if successfull, or a negative error code.
1682  */
1683 int snd_hda_build_pcms(struct hda_bus *bus)
1684 {
1685         struct list_head *p;
1686
1687         list_for_each(p, &bus->codec_list) {
1688                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
1689                 unsigned int pcm, s;
1690                 int err;
1691                 if (! codec->patch_ops.build_pcms)
1692                         continue;
1693                 err = codec->patch_ops.build_pcms(codec);
1694                 if (err < 0)
1695                         return err;
1696                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1697                         for (s = 0; s < 2; s++) {
1698                                 struct hda_pcm_stream *info;
1699                                 info = &codec->pcm_info[pcm].stream[s];
1700                                 if (! info->substreams)
1701                                         continue;
1702                                 err = set_pcm_default_values(codec, info);
1703                                 if (err < 0)
1704                                         return err;
1705                         }
1706                 }
1707         }
1708         return 0;
1709 }
1710
1711 EXPORT_SYMBOL(snd_hda_build_pcms);
1712
1713 /**
1714  * snd_hda_check_board_config - compare the current codec with the config table
1715  * @codec: the HDA codec
1716  * @tbl: configuration table, terminated by null entries
1717  *
1718  * Compares the modelname or PCI subsystem id of the current codec with the
1719  * given configuration table.  If a matching entry is found, returns its
1720  * config value (supposed to be 0 or positive).
1721  *
1722  * If no entries are matching, the function returns a negative value.
1723  */
1724 int snd_hda_check_board_config(struct hda_codec *codec, const struct hda_board_config *tbl)
1725 {
1726         const struct hda_board_config *c;
1727
1728         if (codec->bus->modelname) {
1729                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1730                         if (c->modelname &&
1731                             ! strcmp(codec->bus->modelname, c->modelname)) {
1732                                 snd_printd(KERN_INFO "hda_codec: model '%s' is selected\n", c->modelname);
1733                                 return c->config;
1734                         }
1735                 }
1736         }
1737
1738         if (codec->bus->pci) {
1739                 u16 subsystem_vendor, subsystem_device;
1740                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
1741                 pci_read_config_word(codec->bus->pci, PCI_SUBSYSTEM_ID, &subsystem_device);
1742                 for (c = tbl; c->modelname || c->pci_subvendor; c++) {
1743                         if (c->pci_subvendor == subsystem_vendor &&
1744                             (! c->pci_subdevice /* all match */||
1745                              (c->pci_subdevice == subsystem_device))) {
1746                                 snd_printdd(KERN_INFO "hda_codec: PCI %x:%x, codec config %d is selected\n",
1747                                             subsystem_vendor, subsystem_device, c->config);
1748                                 return c->config;
1749                         }
1750                 }
1751         }
1752         return -1;
1753 }
1754
1755 /**
1756  * snd_hda_add_new_ctls - create controls from the array
1757  * @codec: the HDA codec
1758  * @knew: the array of struct snd_kcontrol_new
1759  *
1760  * This helper function creates and add new controls in the given array.
1761  * The array must be terminated with an empty entry as terminator.
1762  *
1763  * Returns 0 if successful, or a negative error code.
1764  */
1765 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
1766 {
1767         int err;
1768
1769         for (; knew->name; knew++) {
1770                 struct snd_kcontrol *kctl;
1771                 kctl = snd_ctl_new1(knew, codec);
1772                 if (! kctl)
1773                         return -ENOMEM;
1774                 err = snd_ctl_add(codec->bus->card, kctl);
1775                 if (err < 0) {
1776                         if (! codec->addr)
1777                                 return err;
1778                         kctl = snd_ctl_new1(knew, codec);
1779                         if (! kctl)
1780                                 return -ENOMEM;
1781                         kctl->id.device = codec->addr;
1782                         if ((err = snd_ctl_add(codec->bus->card, kctl)) < 0)
1783                                 return err;
1784                 }
1785         }
1786         return 0;
1787 }
1788
1789
1790 /*
1791  * Channel mode helper
1792  */
1793 int snd_hda_ch_mode_info(struct hda_codec *codec, struct snd_ctl_elem_info *uinfo,
1794                          const struct hda_channel_mode *chmode, int num_chmodes)
1795 {
1796         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1797         uinfo->count = 1;
1798         uinfo->value.enumerated.items = num_chmodes;
1799         if (uinfo->value.enumerated.item >= num_chmodes)
1800                 uinfo->value.enumerated.item = num_chmodes - 1;
1801         sprintf(uinfo->value.enumerated.name, "%dch",
1802                 chmode[uinfo->value.enumerated.item].channels);
1803         return 0;
1804 }
1805
1806 int snd_hda_ch_mode_get(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1807                         const struct hda_channel_mode *chmode, int num_chmodes,
1808                         int max_channels)
1809 {
1810         int i;
1811
1812         for (i = 0; i < num_chmodes; i++) {
1813                 if (max_channels == chmode[i].channels) {
1814                         ucontrol->value.enumerated.item[0] = i;
1815                         break;
1816                 }
1817         }
1818         return 0;
1819 }
1820
1821 int snd_hda_ch_mode_put(struct hda_codec *codec, struct snd_ctl_elem_value *ucontrol,
1822                         const struct hda_channel_mode *chmode, int num_chmodes,
1823                         int *max_channelsp)
1824 {
1825         unsigned int mode;
1826
1827         mode = ucontrol->value.enumerated.item[0];
1828         snd_assert(mode < num_chmodes, return -EINVAL);
1829         if (*max_channelsp == chmode[mode].channels && ! codec->in_resume)
1830                 return 0;
1831         /* change the current channel setting */
1832         *max_channelsp = chmode[mode].channels;
1833         if (chmode[mode].sequence)
1834                 snd_hda_sequence_write(codec, chmode[mode].sequence);
1835         return 1;
1836 }
1837
1838 /*
1839  * input MUX helper
1840  */
1841 int snd_hda_input_mux_info(const struct hda_input_mux *imux, struct snd_ctl_elem_info *uinfo)
1842 {
1843         unsigned int index;
1844
1845         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1846         uinfo->count = 1;
1847         uinfo->value.enumerated.items = imux->num_items;
1848         index = uinfo->value.enumerated.item;
1849         if (index >= imux->num_items)
1850                 index = imux->num_items - 1;
1851         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1852         return 0;
1853 }
1854
1855 int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *imux,
1856                           struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
1857                           unsigned int *cur_val)
1858 {
1859         unsigned int idx;
1860
1861         idx = ucontrol->value.enumerated.item[0];
1862         if (idx >= imux->num_items)
1863                 idx = imux->num_items - 1;
1864         if (*cur_val == idx && ! codec->in_resume)
1865                 return 0;
1866         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1867                             imux->items[idx].index);
1868         *cur_val = idx;
1869         return 1;
1870 }
1871
1872
1873 /*
1874  * Multi-channel / digital-out PCM helper functions
1875  */
1876
1877 /*
1878  * open the digital out in the exclusive mode
1879  */
1880 int snd_hda_multi_out_dig_open(struct hda_codec *codec, struct hda_multi_out *mout)
1881 {
1882         mutex_lock(&codec->spdif_mutex);
1883         if (mout->dig_out_used) {
1884                 mutex_unlock(&codec->spdif_mutex);
1885                 return -EBUSY; /* already being used */
1886         }
1887         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1888         mutex_unlock(&codec->spdif_mutex);
1889         return 0;
1890 }
1891
1892 /*
1893  * release the digital out
1894  */
1895 int snd_hda_multi_out_dig_close(struct hda_codec *codec, struct hda_multi_out *mout)
1896 {
1897         mutex_lock(&codec->spdif_mutex);
1898         mout->dig_out_used = 0;
1899         mutex_unlock(&codec->spdif_mutex);
1900         return 0;
1901 }
1902
1903 /*
1904  * set up more restrictions for analog out
1905  */
1906 int snd_hda_multi_out_analog_open(struct hda_codec *codec, struct hda_multi_out *mout,
1907                                   struct snd_pcm_substream *substream)
1908 {
1909         substream->runtime->hw.channels_max = mout->max_channels;
1910         return snd_pcm_hw_constraint_step(substream->runtime, 0,
1911                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1912 }
1913
1914 /*
1915  * set up the i/o for analog out
1916  * when the digital out is available, copy the front out to digital out, too.
1917  */
1918 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec, struct hda_multi_out *mout,
1919                                      unsigned int stream_tag,
1920                                      unsigned int format,
1921                                      struct snd_pcm_substream *substream)
1922 {
1923         hda_nid_t *nids = mout->dac_nids;
1924         int chs = substream->runtime->channels;
1925         int i;
1926
1927         mutex_lock(&codec->spdif_mutex);
1928         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
1929                 if (chs == 2 &&
1930                     snd_hda_is_supported_format(codec, mout->dig_out_nid, format) &&
1931                     ! (codec->spdif_status & IEC958_AES0_NONAUDIO)) {
1932                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
1933                         /* setup digital receiver */
1934                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
1935                                                    stream_tag, 0, format);
1936                 } else {
1937                         mout->dig_out_used = 0;
1938                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1939                 }
1940         }
1941         mutex_unlock(&codec->spdif_mutex);
1942
1943         /* front */
1944         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag, 0, format);
1945         if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
1946                 /* headphone out will just decode front left/right (stereo) */
1947                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag, 0, format);
1948         /* extra outputs copied from front */
1949         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1950                 if (mout->extra_out_nid[i])
1951                         snd_hda_codec_setup_stream(codec,
1952                                                    mout->extra_out_nid[i],
1953                                                    stream_tag, 0, format);
1954
1955         /* surrounds */
1956         for (i = 1; i < mout->num_dacs; i++) {
1957                 if (chs >= (i + 1) * 2) /* independent out */
1958                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, i * 2,
1959                                                    format);
1960                 else /* copy front */
1961                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag, 0,
1962                                                    format);
1963         }
1964         return 0;
1965 }
1966
1967 /*
1968  * clean up the setting for analog out
1969  */
1970 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec, struct hda_multi_out *mout)
1971 {
1972         hda_nid_t *nids = mout->dac_nids;
1973         int i;
1974
1975         for (i = 0; i < mout->num_dacs; i++)
1976                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
1977         if (mout->hp_nid)
1978                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
1979         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
1980                 if (mout->extra_out_nid[i])
1981                         snd_hda_codec_setup_stream(codec,
1982                                                    mout->extra_out_nid[i],
1983                                                    0, 0, 0);
1984         mutex_lock(&codec->spdif_mutex);
1985         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
1986                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1987                 mout->dig_out_used = 0;
1988         }
1989         mutex_unlock(&codec->spdif_mutex);
1990         return 0;
1991 }
1992
1993 /*
1994  * Helper for automatic ping configuration
1995  */
1996
1997 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
1998 {
1999         for (; *list; list++)
2000                 if (*list == nid)
2001                         return 1;
2002         return 0;
2003 }
2004
2005 /*
2006  * Parse all pin widgets and store the useful pin nids to cfg
2007  *
2008  * The number of line-outs or any primary output is stored in line_outs,
2009  * and the corresponding output pins are assigned to line_out_pins[],
2010  * in the order of front, rear, CLFE, side, ...
2011  *
2012  * If more extra outputs (speaker and headphone) are found, the pins are
2013  * assisnged to hp_pin and speaker_pins[], respectively.  If no line-out jack
2014  * is detected, one of speaker of HP pins is assigned as the primary
2015  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
2016  * if any analog output exists.
2017  *
2018  * The analog input pins are assigned to input_pins array.
2019  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2020  * respectively.
2021  */
2022 int snd_hda_parse_pin_def_config(struct hda_codec *codec, struct auto_pin_cfg *cfg,
2023                                  hda_nid_t *ignore_nids)
2024 {
2025         hda_nid_t nid, nid_start;
2026         int i, j, nodes;
2027         short seq, assoc_line_out, sequences[ARRAY_SIZE(cfg->line_out_pins)];
2028
2029         memset(cfg, 0, sizeof(*cfg));
2030
2031         memset(sequences, 0, sizeof(sequences));
2032         assoc_line_out = 0;
2033
2034         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2035         for (nid = nid_start; nid < nodes + nid_start; nid++) {
2036                 unsigned int wid_caps = get_wcaps(codec, nid);
2037                 unsigned int wid_type = (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2038                 unsigned int def_conf;
2039                 short assoc, loc;
2040
2041                 /* read all default configuration for pin complex */
2042                 if (wid_type != AC_WID_PIN)
2043                         continue;
2044                 /* ignore the given nids (e.g. pc-beep returns error) */
2045                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2046                         continue;
2047
2048                 def_conf = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
2049                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2050                         continue;
2051                 loc = get_defcfg_location(def_conf);
2052                 switch (get_defcfg_device(def_conf)) {
2053                 case AC_JACK_LINE_OUT:
2054                         seq = get_defcfg_sequence(def_conf);
2055                         assoc = get_defcfg_association(def_conf);
2056                         if (! assoc)
2057                                 continue;
2058                         if (! assoc_line_out)
2059                                 assoc_line_out = assoc;
2060                         else if (assoc_line_out != assoc)
2061                                 continue;
2062                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2063                                 continue;
2064                         cfg->line_out_pins[cfg->line_outs] = nid;
2065                         sequences[cfg->line_outs] = seq;
2066                         cfg->line_outs++;
2067                         break;
2068                 case AC_JACK_SPEAKER:
2069                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2070                                 continue;
2071                         cfg->speaker_pins[cfg->speaker_outs] = nid;
2072                         cfg->speaker_outs++;
2073                         break;
2074                 case AC_JACK_HP_OUT:
2075                         cfg->hp_pin = nid;
2076                         break;
2077                 case AC_JACK_MIC_IN:
2078                         if (loc == AC_JACK_LOC_FRONT)
2079                                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = nid;
2080                         else
2081                                 cfg->input_pins[AUTO_PIN_MIC] = nid;
2082                         break;
2083                 case AC_JACK_LINE_IN:
2084                         if (loc == AC_JACK_LOC_FRONT)
2085                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2086                         else
2087                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
2088                         break;
2089                 case AC_JACK_CD:
2090                         cfg->input_pins[AUTO_PIN_CD] = nid;
2091                         break;
2092                 case AC_JACK_AUX:
2093                         cfg->input_pins[AUTO_PIN_AUX] = nid;
2094                         break;
2095                 case AC_JACK_SPDIF_OUT:
2096                         cfg->dig_out_pin = nid;
2097                         break;
2098                 case AC_JACK_SPDIF_IN:
2099                         cfg->dig_in_pin = nid;
2100                         break;
2101                 }
2102         }
2103
2104         /* sort by sequence */
2105         for (i = 0; i < cfg->line_outs; i++)
2106                 for (j = i + 1; j < cfg->line_outs; j++)
2107                         if (sequences[i] > sequences[j]) {
2108                                 seq = sequences[i];
2109                                 sequences[i] = sequences[j];
2110                                 sequences[j] = seq;
2111                                 nid = cfg->line_out_pins[i];
2112                                 cfg->line_out_pins[i] = cfg->line_out_pins[j];
2113                                 cfg->line_out_pins[j] = nid;
2114                         }
2115
2116         /* Reorder the surround channels
2117          * ALSA sequence is front/surr/clfe/side
2118          * HDA sequence is:
2119          *    4-ch: front/surr  =>  OK as it is
2120          *    6-ch: front/clfe/surr
2121          *    8-ch: front/clfe/side/surr
2122          */
2123         switch (cfg->line_outs) {
2124         case 3:
2125                 nid = cfg->line_out_pins[1];
2126                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2127                 cfg->line_out_pins[2] = nid;
2128                 break;
2129         case 4:
2130                 nid = cfg->line_out_pins[1];
2131                 cfg->line_out_pins[1] = cfg->line_out_pins[3];
2132                 cfg->line_out_pins[3] = cfg->line_out_pins[2];
2133                 cfg->line_out_pins[2] = nid;
2134                 break;
2135         }
2136
2137         /*
2138          * debug prints of the parsed results
2139          */
2140         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2141                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2142                    cfg->line_out_pins[2], cfg->line_out_pins[3],
2143                    cfg->line_out_pins[4]);
2144         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2145                    cfg->speaker_outs, cfg->speaker_pins[0],
2146                    cfg->speaker_pins[1], cfg->speaker_pins[2],
2147                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
2148         snd_printd("   hp=0x%x, dig_out=0x%x, din_in=0x%x\n",
2149                    cfg->hp_pin, cfg->dig_out_pin, cfg->dig_in_pin);
2150         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2151                    " cd=0x%x, aux=0x%x\n",
2152                    cfg->input_pins[AUTO_PIN_MIC],
2153                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
2154                    cfg->input_pins[AUTO_PIN_LINE],
2155                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
2156                    cfg->input_pins[AUTO_PIN_CD],
2157                    cfg->input_pins[AUTO_PIN_AUX]);
2158
2159         /*
2160          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2161          * as a primary output
2162          */
2163         if (! cfg->line_outs) {
2164                 if (cfg->speaker_outs) {
2165                         cfg->line_outs = cfg->speaker_outs;
2166                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
2167                                sizeof(cfg->speaker_pins));
2168                         cfg->speaker_outs = 0;
2169                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2170                 } else if (cfg->hp_pin) {
2171                         cfg->line_outs = 1;
2172                         cfg->line_out_pins[0] = cfg->hp_pin;
2173                         cfg->hp_pin = 0;
2174                 }
2175         }
2176
2177         return 0;
2178 }
2179
2180 /* labels for input pins */
2181 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2182         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2183 };
2184
2185
2186 #ifdef CONFIG_PM
2187 /*
2188  * power management
2189  */
2190
2191 /**
2192  * snd_hda_suspend - suspend the codecs
2193  * @bus: the HDA bus
2194  * @state: suspsend state
2195  *
2196  * Returns 0 if successful.
2197  */
2198 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2199 {
2200         struct list_head *p;
2201
2202         /* FIXME: should handle power widget capabilities */
2203         list_for_each(p, &bus->codec_list) {
2204                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2205                 if (codec->patch_ops.suspend)
2206                         codec->patch_ops.suspend(codec, state);
2207                 hda_set_power_state(codec,
2208                                     codec->afg ? codec->afg : codec->mfg,
2209                                     AC_PWRST_D3);
2210         }
2211         return 0;
2212 }
2213
2214 EXPORT_SYMBOL(snd_hda_suspend);
2215
2216 /**
2217  * snd_hda_resume - resume the codecs
2218  * @bus: the HDA bus
2219  * @state: resume state
2220  *
2221  * Returns 0 if successful.
2222  */
2223 int snd_hda_resume(struct hda_bus *bus)
2224 {
2225         struct list_head *p;
2226
2227         list_for_each(p, &bus->codec_list) {
2228                 struct hda_codec *codec = list_entry(p, struct hda_codec, list);
2229                 hda_set_power_state(codec,
2230                                     codec->afg ? codec->afg : codec->mfg,
2231                                     AC_PWRST_D0);
2232                 if (codec->patch_ops.resume)
2233                         codec->patch_ops.resume(codec);
2234         }
2235         return 0;
2236 }
2237
2238 EXPORT_SYMBOL(snd_hda_resume);
2239
2240 /**
2241  * snd_hda_resume_ctls - resume controls in the new control list
2242  * @codec: the HDA codec
2243  * @knew: the array of struct snd_kcontrol_new
2244  *
2245  * This function resumes the mixer controls in the struct snd_kcontrol_new array,
2246  * originally for snd_hda_add_new_ctls().
2247  * The array must be terminated with an empty entry as terminator.
2248  */
2249 int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2250 {
2251         struct snd_ctl_elem_value *val;
2252
2253         val = kmalloc(sizeof(*val), GFP_KERNEL);
2254         if (! val)
2255                 return -ENOMEM;
2256         codec->in_resume = 1;
2257         for (; knew->name; knew++) {
2258                 int i, count;
2259                 count = knew->count ? knew->count : 1;
2260                 for (i = 0; i < count; i++) {
2261                         memset(val, 0, sizeof(*val));
2262                         val->id.iface = knew->iface;
2263                         val->id.device = knew->device;
2264                         val->id.subdevice = knew->subdevice;
2265                         strcpy(val->id.name, knew->name);
2266                         val->id.index = knew->index ? knew->index : i;
2267                         /* Assume that get callback reads only from cache,
2268                          * not accessing to the real hardware
2269                          */
2270                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
2271                                 continue;
2272                         snd_ctl_elem_write(codec->bus->card, NULL, val);
2273                 }
2274         }
2275         codec->in_resume = 0;
2276         kfree(val);
2277         return 0;
2278 }
2279
2280 /**
2281  * snd_hda_resume_spdif_out - resume the digital out
2282  * @codec: the HDA codec
2283  */
2284 int snd_hda_resume_spdif_out(struct hda_codec *codec)
2285 {
2286         return snd_hda_resume_ctls(codec, dig_mixes);
2287 }
2288
2289 /**
2290  * snd_hda_resume_spdif_in - resume the digital in
2291  * @codec: the HDA codec
2292  */
2293 int snd_hda_resume_spdif_in(struct hda_codec *codec)
2294 {
2295         return snd_hda_resume_ctls(codec, dig_in_ctls);
2296 }
2297 #endif
2298
2299 /*
2300  *  INIT part
2301  */
2302
2303 static int __init alsa_hda_init(void)
2304 {
2305         return 0;
2306 }
2307
2308 static void __exit alsa_hda_exit(void)
2309 {
2310 }
2311
2312 module_init(alsa_hda_init)
2313 module_exit(alsa_hda_exit)