sound/pci/hda/hda_codec.c

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   5  *
   6  *
   7  *  This driver is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This driver is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/delay.h>
  24 #include <linux/slab.h>
  25 #include <linux/pci.h>
  26 #include <linux/mutex.h>
  27 #include <sound/core.h>
  28 #include "hda_codec.h"
  29 #include <sound/asoundef.h>
  30 #include <sound/tlv.h>
  31 #include <sound/initval.h>
  32 #include "hda_local.h"
  33 #include <sound/hda_hwdep.h>
  34
  35 /*
  36  * vendor / preset table
  37  */
  38
  39 struct hda_vendor_id {
  40         unsigned int id;
  41         const char *name;
  42 };
  43
  44 /* codec vendor labels */
  45 static struct hda_vendor_id hda_vendor_ids[] = {
  46         { 0x1002, "ATI" },
  47         { 0x1057, "Motorola" },
  48         { 0x1095, "Silicon Image" },
  49         { 0x10de, "Nvidia" },
  50         { 0x10ec, "Realtek" },
  51         { 0x1106, "VIA" },
  52         { 0x111d, "IDT" },
  53         { 0x11c1, "LSI" },
  54         { 0x11d4, "Analog Devices" },
  55         { 0x13f6, "C-Media" },
  56         { 0x14f1, "Conexant" },
  57         { 0x17e8, "Chrontel" },
  58         { 0x1854, "LG" },
  59         { 0x1aec, "Wolfson Microelectronics" },
  60         { 0x434d, "C-Media" },
  61         { 0x8086, "Intel" },
  62         { 0x8384, "SigmaTel" },
  63         {} /* terminator */
  64 };
  65
  66 static DEFINE_MUTEX(preset_mutex);
  67 static LIST_HEAD(hda_preset_tables);
  68
  69 int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset)
  70 {
  71         mutex_lock(&preset_mutex);
  72         list_add_tail(&preset->list, &hda_preset_tables);
  73         mutex_unlock(&preset_mutex);
  74         return 0;
  75 }
  76 EXPORT_SYMBOL_HDA(snd_hda_add_codec_preset);
  77
  78 int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset)
  79 {
  80         mutex_lock(&preset_mutex);
  81         list_del(&preset->list);
  82         mutex_unlock(&preset_mutex);
  83         return 0;
  84 }
  85 EXPORT_SYMBOL_HDA(snd_hda_delete_codec_preset);
  86
  87 #ifdef CONFIG_SND_HDA_POWER_SAVE
  88 static void hda_power_work(struct work_struct *work);
  89 static void hda_keep_power_on(struct hda_codec *codec);
  90 #else
  91 static inline void hda_keep_power_on(struct hda_codec *codec) {}
  92 #endif
  93
  94 const char *snd_hda_get_jack_location(u32 cfg)
  95 {
  96         static char *bases[7] = {
  97                 "N/A", "Rear", "Front", "Left", "Right", "Top", "Bottom",
  98         };
  99         static unsigned char specials_idx[] = {
 100                 0x07, 0x08,
 101                 0x17, 0x18, 0x19,
 102                 0x37, 0x38
 103         };
 104         static char *specials[] = {
 105                 "Rear Panel", "Drive Bar",
 106                 "Riser", "HDMI", "ATAPI",
 107                 "Mobile-In", "Mobile-Out"
 108         };
 109         int i;
 110         cfg = (cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT;
 111         if ((cfg & 0x0f) < 7)
 112                 return bases[cfg & 0x0f];
 113         for (i = 0; i < ARRAY_SIZE(specials_idx); i++) {
 114                 if (cfg == specials_idx[i])
 115                         return specials[i];
 116         }
 117         return "UNKNOWN";
 118 }
 119 EXPORT_SYMBOL_HDA(snd_hda_get_jack_location);
 120
 121 const char *snd_hda_get_jack_connectivity(u32 cfg)
 122 {
 123         static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" };
 124
 125         return jack_locations[(cfg >> (AC_DEFCFG_LOCATION_SHIFT + 4)) & 3];
 126 }
 127 EXPORT_SYMBOL_HDA(snd_hda_get_jack_connectivity);
 128
 129 const char *snd_hda_get_jack_type(u32 cfg)
 130 {
 131         static char *jack_types[16] = {
 132                 "Line Out", "Speaker", "HP Out", "CD",
 133                 "SPDIF Out", "Digital Out", "Modem Line", "Modem Hand",
 134                 "Line In", "Aux", "Mic", "Telephony",
 135                 "SPDIF In", "Digitial In", "Reserved", "Other"
 136         };
 137
 138         return jack_types[(cfg & AC_DEFCFG_DEVICE)
 139                                 >> AC_DEFCFG_DEVICE_SHIFT];
 140 }
 141 EXPORT_SYMBOL_HDA(snd_hda_get_jack_type);
 142
 143 /*
 144  * Compose a 32bit command word to be sent to the HD-audio controller
 145  */
 146 static inline unsigned int
 147 make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int direct,
 148                unsigned int verb, unsigned int parm)
 149 {
 150         u32 val;
 151
 152         val = (u32)(codec->addr & 0x0f) << 28;
 153         val |= (u32)direct << 27;
 154         val |= (u32)nid << 20;
 155         val |= verb << 8;
 156         val |= parm;
 157         return val;
 158 }
 159
 160 /**
 161  * snd_hda_codec_read - send a command and get the response
 162  * @codec: the HDA codec
 163  * @nid: NID to send the command
 164  * @direct: direct flag
 165  * @verb: the verb to send
 166  * @parm: the parameter for the verb
 167  *
 168  * Send a single command and read the corresponding response.
 169  *
 170  * Returns the obtained response value, or -1 for an error.
 171  */
 172 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 173                                 int direct,
 174                                 unsigned int verb, unsigned int parm)
 175 {
 176         struct hda_bus *bus = codec->bus;
 177         unsigned int res;
 178
 179         res = make_codec_cmd(codec, nid, direct, verb, parm);
 180         snd_hda_power_up(codec);
 181         mutex_lock(&bus->cmd_mutex);
 182         if (!bus->ops.command(bus, res))
 183                 res = bus->ops.get_response(bus);
 184         else
 185                 res = (unsigned int)-1;
 186         mutex_unlock(&bus->cmd_mutex);
 187         snd_hda_power_down(codec);
 188         return res;
 189 }
 190 EXPORT_SYMBOL_HDA(snd_hda_codec_read);
 191
 192 /**
 193  * snd_hda_codec_write - send a single command without waiting for response
 194  * @codec: the HDA codec
 195  * @nid: NID to send the command
 196  * @direct: direct flag
 197  * @verb: the verb to send
 198  * @parm: the parameter for the verb
 199  *
 200  * Send a single command without waiting for response.
 201  *
 202  * Returns 0 if successful, or a negative error code.
 203  */
 204 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 205                          unsigned int verb, unsigned int parm)
 206 {
 207         struct hda_bus *bus = codec->bus;
 208         unsigned int res;
 209         int err;
 210
 211         res = make_codec_cmd(codec, nid, direct, verb, parm);
 212         snd_hda_power_up(codec);
 213         mutex_lock(&bus->cmd_mutex);
 214         err = bus->ops.command(bus, res);
 215         mutex_unlock(&bus->cmd_mutex);
 216         snd_hda_power_down(codec);
 217         return err;
 218 }
 219 EXPORT_SYMBOL_HDA(snd_hda_codec_write);
 220
 221 /**
 222  * snd_hda_sequence_write - sequence writes
 223  * @codec: the HDA codec
 224  * @seq: VERB array to send
 225  *
 226  * Send the commands sequentially from the given array.
 227  * The array must be terminated with NID=0.
 228  */
 229 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 230 {
 231         for (; seq->nid; seq++)
 232                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 233 }
 234 EXPORT_SYMBOL_HDA(snd_hda_sequence_write);
 235
 236 /**
 237  * snd_hda_get_sub_nodes - get the range of sub nodes
 238  * @codec: the HDA codec
 239  * @nid: NID to parse
 240  * @start_id: the pointer to store the start NID
 241  *
 242  * Parse the NID and store the start NID of its sub-nodes.
 243  * Returns the number of sub-nodes.
 244  */
 245 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 246                           hda_nid_t *start_id)
 247 {
 248         unsigned int parm;
 249
 250         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
 251         if (parm == -1)
 252                 return 0;
 253         *start_id = (parm >> 16) & 0x7fff;
 254         return (int)(parm & 0x7fff);
 255 }
 256 EXPORT_SYMBOL_HDA(snd_hda_get_sub_nodes);
 257
 258 /**
 259  * snd_hda_get_connections - get connection list
 260  * @codec: the HDA codec
 261  * @nid: NID to parse
 262  * @conn_list: connection list array
 263  * @max_conns: max. number of connections to store
 264  *
 265  * Parses the connection list of the given widget and stores the list
 266  * of NIDs.
 267  *
 268  * Returns the number of connections, or a negative error code.
 269  */
 270 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 271                             hda_nid_t *conn_list, int max_conns)
 272 {
 273         unsigned int parm;
 274         int i, conn_len, conns;
 275         unsigned int shift, num_elems, mask;
 276         hda_nid_t prev_nid;
 277
 278         if (snd_BUG_ON(!conn_list || max_conns <= 0))
 279                 return -EINVAL;
 280
 281         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 282         if (parm & AC_CLIST_LONG) {
 283                 /* long form */
 284                 shift = 16;
 285                 num_elems = 2;
 286         } else {
 287                 /* short form */
 288                 shift = 8;
 289                 num_elems = 4;
 290         }
 291         conn_len = parm & AC_CLIST_LENGTH;
 292         mask = (1 << (shift-1)) - 1;
 293
 294         if (!conn_len)
 295                 return 0; /* no connection */
 296
 297         if (conn_len == 1) {
 298                 /* single connection */
 299                 parm = snd_hda_codec_read(codec, nid, 0,
 300                                           AC_VERB_GET_CONNECT_LIST, 0);
 301                 conn_list[0] = parm & mask;
 302                 return 1;
 303         }
 304
 305         /* multi connection */
 306         conns = 0;
 307         prev_nid = 0;
 308         for (i = 0; i < conn_len; i++) {
 309                 int range_val;
 310                 hda_nid_t val, n;
 311
 312                 if (i % num_elems == 0)
 313                         parm = snd_hda_codec_read(codec, nid, 0,
 314                                                   AC_VERB_GET_CONNECT_LIST, i);
 315                 range_val = !!(parm & (1 << (shift-1))); /* ranges */
 316                 val = parm & mask;
 317                 parm >>= shift;
 318                 if (range_val) {
 319                         /* ranges between the previous and this one */
 320                         if (!prev_nid || prev_nid >= val) {
 321                                 snd_printk(KERN_WARNING "hda_codec: "
 322                                            "invalid dep_range_val %x:%x\n",
 323                                            prev_nid, val);
 324                                 continue;
 325                         }
 326                         for (n = prev_nid + 1; n <= val; n++) {
 327                                 if (conns >= max_conns) {
 328                                         snd_printk(KERN_ERR
 329                                                    "Too many connections\n");
 330                                         return -EINVAL;
 331                                 }
 332                                 conn_list[conns++] = n;
 333                         }
 334                 } else {
 335                         if (conns >= max_conns) {
 336                                 snd_printk(KERN_ERR "Too many connections\n");
 337                                 return -EINVAL;
 338                         }
 339                         conn_list[conns++] = val;
 340                 }
 341                 prev_nid = val;
 342         }
 343         return conns;
 344 }
 345 EXPORT_SYMBOL_HDA(snd_hda_get_connections);
 346
 347
 348 /**
 349  * snd_hda_queue_unsol_event - add an unsolicited event to queue
 350  * @bus: the BUS
 351  * @res: unsolicited event (lower 32bit of RIRB entry)
 352  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
 353  *
 354  * Adds the given event to the queue.  The events are processed in
 355  * the workqueue asynchronously.  Call this function in the interrupt
 356  * hanlder when RIRB receives an unsolicited event.
 357  *
 358  * Returns 0 if successful, or a negative error code.
 359  */
 360 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 361 {
 362         struct hda_bus_unsolicited *unsol;
 363         unsigned int wp;
 364
 365         unsol = bus->unsol;
 366         if (!unsol)
 367                 return 0;
 368
 369         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
 370         unsol->wp = wp;
 371
 372         wp <<= 1;
 373         unsol->queue[wp] = res;
 374         unsol->queue[wp + 1] = res_ex;
 375
 376         schedule_work(&unsol->work);
 377
 378         return 0;
 379 }
 380 EXPORT_SYMBOL_HDA(snd_hda_queue_unsol_event);
 381
 382 /*
 383  * process queued unsolicited events
 384  */
 385 static void process_unsol_events(struct work_struct *work)
 386 {
 387         struct hda_bus_unsolicited *unsol =
 388                 container_of(work, struct hda_bus_unsolicited, work);
 389         struct hda_bus *bus = unsol->bus;
 390         struct hda_codec *codec;
 391         unsigned int rp, caddr, res;
 392
 393         while (unsol->rp != unsol->wp) {
 394                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
 395                 unsol->rp = rp;
 396                 rp <<= 1;
 397                 res = unsol->queue[rp];
 398                 caddr = unsol->queue[rp + 1];
 399                 if (!(caddr & (1 << 4))) /* no unsolicited event? */
 400                         continue;
 401                 codec = bus->caddr_tbl[caddr & 0x0f];
 402                 if (codec && codec->patch_ops.unsol_event)
 403                         codec->patch_ops.unsol_event(codec, res);
 404         }
 405 }
 406
 407 /*
 408  * initialize unsolicited queue
 409  */
 410 static int init_unsol_queue(struct hda_bus *bus)
 411 {
 412         struct hda_bus_unsolicited *unsol;
 413
 414         if (bus->unsol) /* already initialized */
 415                 return 0;
 416
 417         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
 418         if (!unsol) {
 419                 snd_printk(KERN_ERR "hda_codec: "
 420                            "can't allocate unsolicited queue\n");
 421                 return -ENOMEM;
 422         }
 423         INIT_WORK(&unsol->work, process_unsol_events);
 424         unsol->bus = bus;
 425         bus->unsol = unsol;
 426         return 0;
 427 }
 428
 429 /*
 430  * destructor
 431  */
 432 static void snd_hda_codec_free(struct hda_codec *codec);
 433
 434 static int snd_hda_bus_free(struct hda_bus *bus)
 435 {
 436         struct hda_codec *codec, *n;
 437
 438         if (!bus)
 439                 return 0;
 440         if (bus->unsol) {
 441                 flush_scheduled_work();
 442                 kfree(bus->unsol);
 443         }
 444         list_for_each_entry_safe(codec, n, &bus->codec_list, list) {
 445                 snd_hda_codec_free(codec);
 446         }
 447         if (bus->ops.private_free)
 448                 bus->ops.private_free(bus);
 449         kfree(bus);
 450         return 0;
 451 }
 452
 453 static int snd_hda_bus_dev_free(struct snd_device *device)
 454 {
 455         struct hda_bus *bus = device->device_data;
 456         bus->shutdown = 1;
 457         return snd_hda_bus_free(bus);
 458 }
 459
 460 #ifdef CONFIG_SND_HDA_HWDEP
 461 static int snd_hda_bus_dev_register(struct snd_device *device)
 462 {
 463         struct hda_bus *bus = device->device_data;
 464         struct hda_codec *codec;
 465         list_for_each_entry(codec, &bus->codec_list, list) {
 466                 snd_hda_hwdep_add_sysfs(codec);
 467         }
 468         return 0;
 469 }
 470 #else
 471 #define snd_hda_bus_dev_register        NULL
 472 #endif
 473
 474 /**
 475  * snd_hda_bus_new - create a HDA bus
 476  * @card: the card entry
 477  * @temp: the template for hda_bus information
 478  * @busp: the pointer to store the created bus instance
 479  *
 480  * Returns 0 if successful, or a negative error code.
 481  */
 482 int /*__devinit*/ snd_hda_bus_new(struct snd_card *card,
 483                               const struct hda_bus_template *temp,
 484                               struct hda_bus **busp)
 485 {
 486         struct hda_bus *bus;
 487         int err;
 488         static struct snd_device_ops dev_ops = {
 489                 .dev_register = snd_hda_bus_dev_register,
 490                 .dev_free = snd_hda_bus_dev_free,
 491         };
 492
 493         if (snd_BUG_ON(!temp))
 494                 return -EINVAL;
 495         if (snd_BUG_ON(!temp->ops.command || !temp->ops.get_response))
 496                 return -EINVAL;
 497
 498         if (busp)
 499                 *busp = NULL;
 500
 501         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 502         if (bus == NULL) {
 503                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 504                 return -ENOMEM;
 505         }
 506
 507         bus->card = card;
 508         bus->private_data = temp->private_data;
 509         bus->pci = temp->pci;
 510         bus->modelname = temp->modelname;
 511         bus->power_save = temp->power_save;
 512         bus->ops = temp->ops;
 513
 514         mutex_init(&bus->cmd_mutex);
 515         INIT_LIST_HEAD(&bus->codec_list);
 516
 517         err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
 518         if (err < 0) {
 519                 snd_hda_bus_free(bus);
 520                 return err;
 521         }
 522         if (busp)
 523                 *busp = bus;
 524         return 0;
 525 }
 526 EXPORT_SYMBOL_HDA(snd_hda_bus_new);
 527
 528 #ifdef CONFIG_SND_HDA_GENERIC
 529 #define is_generic_config(codec) \
 530         (codec->modelname && !strcmp(codec->modelname, "generic"))
 531 #else
 532 #define is_generic_config(codec)        0
 533 #endif
 534
 535 #ifdef MODULE
 536 #define HDA_MODREQ_MAX_COUNT    2       /* two request_modules()'s */
 537 #else
 538 #define HDA_MODREQ_MAX_COUNT    0       /* all presets are statically linked */
 539 #endif
 540
 541 /*
 542  * find a matching codec preset
 543  */
 544 static const struct hda_codec_preset *
 545 find_codec_preset(struct hda_codec *codec)
 546 {
 547         struct hda_codec_preset_list *tbl;
 548         const struct hda_codec_preset *preset;
 549         int mod_requested = 0;
 550
 551         if (is_generic_config(codec))
 552                 return NULL; /* use the generic parser */
 553
 554  again:
 555         mutex_lock(&preset_mutex);
 556         list_for_each_entry(tbl, &hda_preset_tables, list) {
 557                 if (!try_module_get(tbl->owner)) {
 558                         snd_printk(KERN_ERR "hda_codec: cannot module_get\n");
 559                         continue;
 560                 }
 561                 for (preset = tbl->preset; preset->id; preset++) {
 562                         u32 mask = preset->mask;
 563                         if (preset->afg && preset->afg != codec->afg)
 564                                 continue;
 565                         if (preset->mfg && preset->mfg != codec->mfg)
 566                                 continue;
 567                         if (!mask)
 568                                 mask = ~0;
 569                         if (preset->id == (codec->vendor_id & mask) &&
 570                             (!preset->rev ||
 571                              preset->rev == codec->revision_id)) {
 572                                 mutex_unlock(&preset_mutex);
 573                                 codec->owner = tbl->owner;
 574                                 return preset;
 575                         }
 576                 }
 577                 module_put(tbl->owner);
 578         }
 579         mutex_unlock(&preset_mutex);
 580
 581         if (mod_requested < HDA_MODREQ_MAX_COUNT) {
 582                 char name[32];
 583                 if (!mod_requested)
 584                         snprintf(name, sizeof(name), "snd-hda-codec-id:%08x",
 585                                  codec->vendor_id);
 586                 else
 587                         snprintf(name, sizeof(name), "snd-hda-codec-id:%04x*",
 588                                  (codec->vendor_id >> 16) & 0xffff);
 589                 request_module(name);
 590                 mod_requested++;
 591                 goto again;
 592         }
 593         return NULL;
 594 }
 595
 596 /*
 597  * get_codec_name - store the codec name
 598  */
 599 static int get_codec_name(struct hda_codec *codec)
 600 {
 601         const struct hda_vendor_id *c;
 602         const char *vendor = NULL;
 603         u16 vendor_id = codec->vendor_id >> 16;
 604         char tmp[16], name[32];
 605
 606         for (c = hda_vendor_ids; c->id; c++) {
 607                 if (c->id == vendor_id) {
 608                         vendor = c->name;
 609                         break;
 610                 }
 611         }
 612         if (!vendor) {
 613                 sprintf(tmp, "Generic %04x", vendor_id);
 614                 vendor = tmp;
 615         }
 616         if (codec->preset && codec->preset->name)
 617                 snprintf(name, sizeof(name), "%s %s", vendor,
 618                          codec->preset->name);
 619         else
 620                 snprintf(name, sizeof(name), "%s ID %x", vendor,
 621                          codec->vendor_id & 0xffff);
 622         codec->name = kstrdup(name, GFP_KERNEL);
 623         if (!codec->name)
 624                 return -ENOMEM;
 625         return 0;
 626 }
 627
 628 /*
 629  * look for an AFG and MFG nodes
 630  */
 631 static void /*__devinit*/ setup_fg_nodes(struct hda_codec *codec)
 632 {
 633         int i, total_nodes;
 634         hda_nid_t nid;
 635
 636         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 637         for (i = 0; i < total_nodes; i++, nid++) {
 638                 unsigned int func;
 639                 func = snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE);
 640                 switch (func & 0xff) {
 641                 case AC_GRP_AUDIO_FUNCTION:
 642                         codec->afg = nid;
 643                         break;
 644                 case AC_GRP_MODEM_FUNCTION:
 645                         codec->mfg = nid;
 646                         break;
 647                 default:
 648                         break;
 649                 }
 650         }
 651 }
 652
 653 /*
 654  * read widget caps for each widget and store in cache
 655  */
 656 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 657 {
 658         int i;
 659         hda_nid_t nid;
 660
 661         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 662                                                  &codec->start_nid);
 663         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 664         if (!codec->wcaps)
 665                 return -ENOMEM;
 666         nid = codec->start_nid;
 667         for (i = 0; i < codec->num_nodes; i++, nid++)
 668                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 669                                                      AC_PAR_AUDIO_WIDGET_CAP);
 670         return 0;
 671 }
 672
 673
 674 static void init_hda_cache(struct hda_cache_rec *cache,
 675                            unsigned int record_size);
 676 static void free_hda_cache(struct hda_cache_rec *cache);
 677
 678 /*
 679  * codec destructor
 680  */
 681 static void snd_hda_codec_free(struct hda_codec *codec)
 682 {
 683         if (!codec)
 684                 return;
 685 #ifdef CONFIG_SND_HDA_POWER_SAVE
 686         cancel_delayed_work(&codec->power_work);
 687         flush_scheduled_work();
 688 #endif
 689         list_del(&codec->list);
 690         snd_array_free(&codec->mixers);
 691         codec->bus->caddr_tbl[codec->addr] = NULL;
 692         if (codec->patch_ops.free)
 693                 codec->patch_ops.free(codec);
 694         module_put(codec->owner);
 695         free_hda_cache(&codec->amp_cache);
 696         free_hda_cache(&codec->cmd_cache);
 697         kfree(codec->name);
 698         kfree(codec->modelname);
 699         kfree(codec->wcaps);
 700         kfree(codec);
 701 }
 702
 703 /**
 704  * snd_hda_codec_new - create a HDA codec
 705  * @bus: the bus to assign
 706  * @codec_addr: the codec address
 707  * @codecp: the pointer to store the generated codec
 708  *
 709  * Returns 0 if successful, or a negative error code.
 710  */
 711 int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 712                                     int do_init, struct hda_codec **codecp)
 713 {
 714         struct hda_codec *codec;
 715         char component[31];
 716         int err;
 717
 718         if (snd_BUG_ON(!bus))
 719                 return -EINVAL;
 720         if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 721                 return -EINVAL;
 722
 723         if (bus->caddr_tbl[codec_addr]) {
 724                 snd_printk(KERN_ERR "hda_codec: "
 725                            "address 0x%x is already occupied\n", codec_addr);
 726                 return -EBUSY;
 727         }
 728
 729         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 730         if (codec == NULL) {
 731                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 732                 return -ENOMEM;
 733         }
 734
 735         codec->bus = bus;
 736         codec->addr = codec_addr;
 737         mutex_init(&codec->spdif_mutex);
 738         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
 739         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
 740         snd_array_init(&codec->mixers, sizeof(struct snd_kcontrol *), 32);
 741         if (codec->bus->modelname) {
 742                 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
 743                 if (!codec->modelname) {
 744                         snd_hda_codec_free(codec);
 745                         return -ENODEV;
 746                 }
 747         }
 748
 749 #ifdef CONFIG_SND_HDA_POWER_SAVE
 750         INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
 751         /* snd_hda_codec_new() marks the codec as power-up, and leave it as is.
 752          * the caller has to power down appropriatley after initialization
 753          * phase.
 754          */
 755         hda_keep_power_on(codec);
 756 #endif
 757
 758         list_add_tail(&codec->list, &bus->codec_list);
 759         bus->caddr_tbl[codec_addr] = codec;
 760
 761         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 762                                               AC_PAR_VENDOR_ID);
 763         if (codec->vendor_id == -1)
 764                 /* read again, hopefully the access method was corrected
 765                  * in the last read...
 766                  */
 767                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 768                                                       AC_PAR_VENDOR_ID);
 769         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 770                                                  AC_PAR_SUBSYSTEM_ID);
 771         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 772                                                 AC_PAR_REV_ID);
 773
 774         setup_fg_nodes(codec);
 775         if (!codec->afg && !codec->mfg) {
 776                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 777                 snd_hda_codec_free(codec);
 778                 return -ENODEV;
 779         }
 780
 781         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 782                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 783                 snd_hda_codec_free(codec);
 784                 return -ENOMEM;
 785         }
 786
 787         if (!codec->subsystem_id) {
 788                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 789                 codec->subsystem_id =
 790                         snd_hda_codec_read(codec, nid, 0,
 791                                            AC_VERB_GET_SUBSYSTEM_ID, 0);
 792         }
 793         if (bus->modelname)
 794                 codec->modelname = kstrdup(bus->modelname, GFP_KERNEL);
 795
 796         if (do_init) {
 797                 err = snd_hda_codec_configure(codec);
 798                 if (err < 0) {
 799                         snd_hda_codec_free(codec);
 800                         return err;
 801                 }
 802         }
 803         snd_hda_codec_proc_new(codec);
 804
 805         snd_hda_create_hwdep(codec);
 806
 807         sprintf(component, "HDA:%08x,%08x,%08x", codec->vendor_id,
 808                 codec->subsystem_id, codec->revision_id);
 809         snd_component_add(codec->bus->card, component);
 810
 811         if (codecp)
 812                 *codecp = codec;
 813         return 0;
 814 }
 815 EXPORT_SYMBOL_HDA(snd_hda_codec_new);
 816
 817 int snd_hda_codec_configure(struct hda_codec *codec)
 818 {
 819         int err;
 820
 821         codec->preset = find_codec_preset(codec);
 822         if (!codec->name) {
 823                 err = get_codec_name(codec);
 824                 if (err < 0)
 825                         return err;
 826         }
 827         /* audio codec should override the mixer name */
 828         if (codec->afg || !*codec->bus->card->mixername)
 829                 strlcpy(codec->bus->card->mixername, codec->name,
 830                         sizeof(codec->bus->card->mixername));
 831
 832         if (is_generic_config(codec)) {
 833                 err = snd_hda_parse_generic_codec(codec);
 834                 goto patched;
 835         }
 836         if (codec->preset && codec->preset->patch) {
 837                 err = codec->preset->patch(codec);
 838                 goto patched;
 839         }
 840
 841         /* call the default parser */
 842         err = snd_hda_parse_generic_codec(codec);
 843         if (err < 0)
 844                 printk(KERN_ERR "hda-codec: No codec parser is available\n");
 845
 846  patched:
 847         if (!err && codec->patch_ops.unsol_event)
 848                 err = init_unsol_queue(codec->bus);
 849         return err;
 850 }
 851
 852 /**
 853  * snd_hda_codec_setup_stream - set up the codec for streaming
 854  * @codec: the CODEC to set up
 855  * @nid: the NID to set up
 856  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 857  * @channel_id: channel id to pass, zero based.
 858  * @format: stream format.
 859  */
 860 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 861                                 u32 stream_tag,
 862                                 int channel_id, int format)
 863 {
 864         if (!nid)
 865                 return;
 866
 867         snd_printdd("hda_codec_setup_stream: "
 868                     "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 869                     nid, stream_tag, channel_id, format);
 870         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 871                             (stream_tag << 4) | channel_id);
 872         msleep(1);
 873         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 874 }
 875 EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
 876
 877 void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
 878 {
 879         if (!nid)
 880                 return;
 881
 882         snd_printdd("hda_codec_cleanup_stream: NID=0x%x\n", nid);
 883         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
 884 #if 0 /* keep the format */
 885         msleep(1);
 886         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0);
 887 #endif
 888 }
 889 EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
 890
 891 /*
 892  * amp access functions
 893  */
 894
 895 /* FIXME: more better hash key? */
 896 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 897 #define INFO_AMP_CAPS   (1<<0)
 898 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 899
 900 /* initialize the hash table */
 901 static void /*__devinit*/ init_hda_cache(struct hda_cache_rec *cache,
 902                                      unsigned int record_size)
 903 {
 904         memset(cache, 0, sizeof(*cache));
 905         memset(cache->hash, 0xff, sizeof(cache->hash));
 906         snd_array_init(&cache->buf, record_size, 64);
 907 }
 908
 909 static void free_hda_cache(struct hda_cache_rec *cache)
 910 {
 911         snd_array_free(&cache->buf);
 912 }
 913
 914 /* query the hash.  allocate an entry if not found. */
 915 static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
 916                                               u32 key)
 917 {
 918         u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
 919         u16 cur = cache->hash[idx];
 920         struct hda_cache_head *info;
 921
 922         while (cur != 0xffff) {
 923                 info = snd_array_elem(&cache->buf, cur);
 924                 if (info->key == key)
 925                         return info;
 926                 cur = info->next;
 927         }
 928
 929         /* add a new hash entry */
 930         info = snd_array_new(&cache->buf);
 931         if (!info)
 932                 return NULL;
 933         cur = snd_array_index(&cache->buf, info);
 934         info->key = key;
 935         info->val = 0;
 936         info->next = cache->hash[idx];
 937         cache->hash[idx] = cur;
 938
 939         return info;
 940 }
 941
 942 /* query and allocate an amp hash entry */
 943 static inline struct hda_amp_info *
 944 get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 945 {
 946         return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
 947 }
 948
 949 /*
 950  * query AMP capabilities for the given widget and direction
 951  */
 952 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 953 {
 954         struct hda_amp_info *info;
 955
 956         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 957         if (!info)
 958                 return 0;
 959         if (!(info->head.val & INFO_AMP_CAPS)) {
 960                 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 961                         nid = codec->afg;
 962                 info->amp_caps = snd_hda_param_read(codec, nid,
 963                                                     direction == HDA_OUTPUT ?
 964                                                     AC_PAR_AMP_OUT_CAP :
 965                                                     AC_PAR_AMP_IN_CAP);
 966                 if (info->amp_caps)
 967                         info->head.val |= INFO_AMP_CAPS;
 968         }
 969         return info->amp_caps;
 970 }
 971 EXPORT_SYMBOL_HDA(query_amp_caps);
 972
 973 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 974                               unsigned int caps)
 975 {
 976         struct hda_amp_info *info;
 977
 978         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0));
 979         if (!info)
 980                 return -EINVAL;
 981         info->amp_caps = caps;
 982         info->head.val |= INFO_AMP_CAPS;
 983         return 0;
 984 }
 985 EXPORT_SYMBOL_HDA(snd_hda_override_amp_caps);
 986
 987 /*
 988  * read the current volume to info
 989  * if the cache exists, read the cache value.
 990  */
 991 static unsigned int get_vol_mute(struct hda_codec *codec,
 992                                  struct hda_amp_info *info, hda_nid_t nid,
 993                                  int ch, int direction, int index)
 994 {
 995         u32 val, parm;
 996
 997         if (info->head.val & INFO_AMP_VOL(ch))
 998                 return info->vol[ch];
 999
1000         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
1001         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
1002         parm |= index;
1003         val = snd_hda_codec_read(codec, nid, 0,
1004                                  AC_VERB_GET_AMP_GAIN_MUTE, parm);
1005         info->vol[ch] = val & 0xff;
1006         info->head.val |= INFO_AMP_VOL(ch);
1007         return info->vol[ch];
1008 }
1009
1010 /*
1011  * write the current volume in info to the h/w and update the cache
1012  */
1013 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
1014                          hda_nid_t nid, int ch, int direction, int index,
1015                          int val)
1016 {
1017         u32 parm;
1018
1019         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
1020         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
1021         parm |= index << AC_AMP_SET_INDEX_SHIFT;
1022         parm |= val;
1023         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
1024         info->vol[ch] = val;
1025 }
1026
1027 /*
1028  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
1029  */
1030 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
1031                            int direction, int index)
1032 {
1033         struct hda_amp_info *info;
1034         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
1035         if (!info)
1036                 return 0;
1037         return get_vol_mute(codec, info, nid, ch, direction, index);
1038 }
1039 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_read);
1040
1041 /*
1042  * update the AMP value, mask = bit mask to set, val = the value
1043  */
1044 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
1045                              int direction, int idx, int mask, int val)
1046 {
1047         struct hda_amp_info *info;
1048
1049         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
1050         if (!info)
1051                 return 0;
1052         val &= mask;
1053         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
1054         if (info->vol[ch] == val)
1055                 return 0;
1056         put_vol_mute(codec, info, nid, ch, direction, idx, val);
1057         return 1;
1058 }
1059 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_update);
1060
1061 /*
1062  * update the AMP stereo with the same mask and value
1063  */
1064 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1065                              int direction, int idx, int mask, int val)
1066 {
1067         int ch, ret = 0;
1068         for (ch = 0; ch < 2; ch++)
1069                 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1070                                                 idx, mask, val);
1071         return ret;
1072 }
1073 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_stereo);
1074
1075 #ifdef SND_HDA_NEEDS_RESUME
1076 /* resume the all amp commands from the cache */
1077 void snd_hda_codec_resume_amp(struct hda_codec *codec)
1078 {
1079         struct hda_amp_info *buffer = codec->amp_cache.buf.list;
1080         int i;
1081
1082         for (i = 0; i < codec->amp_cache.buf.used; i++, buffer++) {
1083                 u32 key = buffer->head.key;
1084                 hda_nid_t nid;
1085                 unsigned int idx, dir, ch;
1086                 if (!key)
1087                         continue;
1088                 nid = key & 0xff;
1089                 idx = (key >> 16) & 0xff;
1090                 dir = (key >> 24) & 0xff;
1091                 for (ch = 0; ch < 2; ch++) {
1092                         if (!(buffer->head.val & INFO_AMP_VOL(ch)))
1093                                 continue;
1094                         put_vol_mute(codec, buffer, nid, ch, dir, idx,
1095                                      buffer->vol[ch]);
1096                 }
1097         }
1098 }
1099 EXPORT_SYMBOL_HDA(snd_hda_codec_resume_amp);
1100 #endif /* SND_HDA_NEEDS_RESUME */
1101
1102 /* volume */
1103 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1104                                   struct snd_ctl_elem_info *uinfo)
1105 {
1106         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1107         u16 nid = get_amp_nid(kcontrol);
1108         u8 chs = get_amp_channels(kcontrol);
1109         int dir = get_amp_direction(kcontrol);
1110         u32 caps;
1111
1112         caps = query_amp_caps(codec, nid, dir);
1113         /* num steps */
1114         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1115         if (!caps) {
1116                 printk(KERN_WARNING "hda_codec: "
1117                        "num_steps = 0 for NID=0x%x (ctl = %s)\n", nid,
1118                        kcontrol->id.name);
1119                 return -EINVAL;
1120         }
1121         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1122         uinfo->count = chs == 3 ? 2 : 1;
1123         uinfo->value.integer.min = 0;
1124         uinfo->value.integer.max = caps;
1125         return 0;
1126 }
1127 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_info);
1128
1129 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1130                                  struct snd_ctl_elem_value *ucontrol)
1131 {
1132         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1133         hda_nid_t nid = get_amp_nid(kcontrol);
1134         int chs = get_amp_channels(kcontrol);
1135         int dir = get_amp_direction(kcontrol);
1136         int idx = get_amp_index(kcontrol);
1137         long *valp = ucontrol->value.integer.value;
1138
1139         if (chs & 1)
1140                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx)
1141                         & HDA_AMP_VOLMASK;
1142         if (chs & 2)
1143                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx)
1144                         & HDA_AMP_VOLMASK;
1145         return 0;
1146 }
1147 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_get);
1148
1149 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1150                                  struct snd_ctl_elem_value *ucontrol)
1151 {
1152         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1153         hda_nid_t nid = get_amp_nid(kcontrol);
1154         int chs = get_amp_channels(kcontrol);
1155         int dir = get_amp_direction(kcontrol);
1156         int idx = get_amp_index(kcontrol);
1157         long *valp = ucontrol->value.integer.value;
1158         int change = 0;
1159
1160         snd_hda_power_up(codec);
1161         if (chs & 1) {
1162                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1163                                                   0x7f, *valp);
1164                 valp++;
1165         }
1166         if (chs & 2)
1167                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1168                                                    0x7f, *valp);
1169         snd_hda_power_down(codec);
1170         return change;
1171 }
1172 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_put);
1173
1174 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1175                           unsigned int size, unsigned int __user *_tlv)
1176 {
1177         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1178         hda_nid_t nid = get_amp_nid(kcontrol);
1179         int dir = get_amp_direction(kcontrol);
1180         u32 caps, val1, val2;
1181
1182         if (size < 4 * sizeof(unsigned int))
1183                 return -ENOMEM;
1184         caps = query_amp_caps(codec, nid, dir);
1185         val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1186         val2 = (val2 + 1) * 25;
1187         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1188         val1 = ((int)val1) * ((int)val2);
1189         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
1190                 return -EFAULT;
1191         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
1192                 return -EFAULT;
1193         if (put_user(val1, _tlv + 2))
1194                 return -EFAULT;
1195         if (put_user(val2, _tlv + 3))
1196                 return -EFAULT;
1197         return 0;
1198 }
1199 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_tlv);
1200
1201 /*
1202  * set (static) TLV for virtual master volume; recalculated as max 0dB
1203  */
1204 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1205                              unsigned int *tlv)
1206 {
1207         u32 caps;
1208         int nums, step;
1209
1210         caps = query_amp_caps(codec, nid, dir);
1211         nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1212         step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1213         step = (step + 1) * 25;
1214         tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
1215         tlv[1] = 2 * sizeof(unsigned int);
1216         tlv[2] = -nums * step;
1217         tlv[3] = step;
1218 }
1219 EXPORT_SYMBOL_HDA(snd_hda_set_vmaster_tlv);
1220
1221 /* find a mixer control element with the given name */
1222 static struct snd_kcontrol *
1223 _snd_hda_find_mixer_ctl(struct hda_codec *codec,
1224                         const char *name, int idx)
1225 {
1226         struct snd_ctl_elem_id id;
1227         memset(&id, 0, sizeof(id));
1228         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1229         id.index = idx;
1230         strcpy(id.name, name);
1231         return snd_ctl_find_id(codec->bus->card, &id);
1232 }
1233
1234 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1235                                             const char *name)
1236 {
1237         return _snd_hda_find_mixer_ctl(codec, name, 0);
1238 }
1239 EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl);
1240
1241 /* Add a control element and assign to the codec */
1242 int snd_hda_ctl_add(struct hda_codec *codec, struct snd_kcontrol *kctl)
1243 {
1244         int err;
1245         struct snd_kcontrol **knewp;
1246
1247         err = snd_ctl_add(codec->bus->card, kctl);
1248         if (err < 0)
1249                 return err;
1250         knewp = snd_array_new(&codec->mixers);
1251         if (!knewp)
1252                 return -ENOMEM;
1253         *knewp = kctl;
1254         return 0;
1255 }
1256 EXPORT_SYMBOL_HDA(snd_hda_ctl_add);
1257
1258 #ifdef CONFIG_SND_HDA_RECONFIG
1259 /* Clear all controls assigned to the given codec */
1260 void snd_hda_ctls_clear(struct hda_codec *codec)
1261 {
1262         int i;
1263         struct snd_kcontrol **kctls = codec->mixers.list;
1264         for (i = 0; i < codec->mixers.used; i++)
1265                 snd_ctl_remove(codec->bus->card, kctls[i]);
1266         snd_array_free(&codec->mixers);
1267 }
1268
1269 void snd_hda_codec_reset(struct hda_codec *codec)
1270 {
1271         int i;
1272
1273 #ifdef CONFIG_SND_HDA_POWER_SAVE
1274         cancel_delayed_work(&codec->power_work);
1275         flush_scheduled_work();
1276 #endif
1277         snd_hda_ctls_clear(codec);
1278         /* relase PCMs */
1279         for (i = 0; i < codec->num_pcms; i++) {
1280                 if (codec->pcm_info[i].pcm) {
1281                         snd_device_free(codec->bus->card,
1282                                         codec->pcm_info[i].pcm);
1283                         clear_bit(codec->pcm_info[i].device,
1284                                   codec->bus->pcm_dev_bits);
1285                 }
1286         }
1287         if (codec->patch_ops.free)
1288                 codec->patch_ops.free(codec);
1289         codec->proc_widget_hook = NULL;
1290         codec->spec = NULL;
1291         free_hda_cache(&codec->amp_cache);
1292         free_hda_cache(&codec->cmd_cache);
1293         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
1294         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
1295         codec->num_pcms = 0;
1296         codec->pcm_info = NULL;
1297         codec->preset = NULL;
1298         module_put(codec->owner);
1299         codec->owner = NULL;
1300 }
1301 #endif /* CONFIG_SND_HDA_RECONFIG */
1302
1303 /* create a virtual master control and add slaves */
1304 int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1305                         unsigned int *tlv, const char **slaves)
1306 {
1307         struct snd_kcontrol *kctl;
1308         const char **s;
1309         int err;
1310
1311         for (s = slaves; *s && !snd_hda_find_mixer_ctl(codec, *s); s++)
1312                 ;
1313         if (!*s) {
1314                 snd_printdd("No slave found for %s\n", name);
1315                 return 0;
1316         }
1317         kctl = snd_ctl_make_virtual_master(name, tlv);
1318         if (!kctl)
1319                 return -ENOMEM;
1320         err = snd_hda_ctl_add(codec, kctl);
1321         if (err < 0)
1322                 return err;
1323
1324         for (s = slaves; *s; s++) {
1325                 struct snd_kcontrol *sctl;
1326
1327                 sctl = snd_hda_find_mixer_ctl(codec, *s);
1328                 if (!sctl) {
1329                         snd_printdd("Cannot find slave %s, skipped\n", *s);
1330                         continue;
1331                 }
1332                 err = snd_ctl_add_slave(kctl, sctl);
1333                 if (err < 0)
1334                         return err;
1335         }
1336         return 0;
1337 }
1338 EXPORT_SYMBOL_HDA(snd_hda_add_vmaster);
1339
1340 /* switch */
1341 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
1342                                   struct snd_ctl_elem_info *uinfo)
1343 {
1344         int chs = get_amp_channels(kcontrol);
1345
1346         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1347         uinfo->count = chs == 3 ? 2 : 1;
1348         uinfo->value.integer.min = 0;
1349         uinfo->value.integer.max = 1;
1350         return 0;
1351 }
1352 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_info);
1353
1354 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
1355                                  struct snd_ctl_elem_value *ucontrol)
1356 {
1357         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1358         hda_nid_t nid = get_amp_nid(kcontrol);
1359         int chs = get_amp_channels(kcontrol);
1360         int dir = get_amp_direction(kcontrol);
1361         int idx = get_amp_index(kcontrol);
1362         long *valp = ucontrol->value.integer.value;
1363
1364         if (chs & 1)
1365                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
1366                            HDA_AMP_MUTE) ? 0 : 1;
1367         if (chs & 2)
1368                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
1369                          HDA_AMP_MUTE) ? 0 : 1;
1370         return 0;
1371 }
1372 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_get);
1373
1374 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
1375                                  struct snd_ctl_elem_value *ucontrol)
1376 {
1377         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1378         hda_nid_t nid = get_amp_nid(kcontrol);
1379         int chs = get_amp_channels(kcontrol);
1380         int dir = get_amp_direction(kcontrol);
1381         int idx = get_amp_index(kcontrol);
1382         long *valp = ucontrol->value.integer.value;
1383         int change = 0;
1384
1385         snd_hda_power_up(codec);
1386         if (chs & 1) {
1387                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1388                                                   HDA_AMP_MUTE,
1389                                                   *valp ? 0 : HDA_AMP_MUTE);
1390                 valp++;
1391         }
1392         if (chs & 2)
1393                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1394                                                    HDA_AMP_MUTE,
1395                                                    *valp ? 0 : HDA_AMP_MUTE);
1396 #ifdef CONFIG_SND_HDA_POWER_SAVE
1397         if (codec->patch_ops.check_power_status)
1398                 codec->patch_ops.check_power_status(codec, nid);
1399 #endif
1400         snd_hda_power_down(codec);
1401         return change;
1402 }
1403 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_put);
1404
1405 /*
1406  * bound volume controls
1407  *
1408  * bind multiple volumes (# indices, from 0)
1409  */
1410
1411 #define AMP_VAL_IDX_SHIFT       19
1412 #define AMP_VAL_IDX_MASK        (0x0f<<19)
1413
1414 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
1415                                   struct snd_ctl_elem_value *ucontrol)
1416 {
1417         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1418         unsigned long pval;
1419         int err;
1420
1421         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1422         pval = kcontrol->private_value;
1423         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
1424         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
1425         kcontrol->private_value = pval;
1426         mutex_unlock(&codec->spdif_mutex);
1427         return err;
1428 }
1429 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_get);
1430
1431 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
1432                                   struct snd_ctl_elem_value *ucontrol)
1433 {
1434         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1435         unsigned long pval;
1436         int i, indices, err = 0, change = 0;
1437
1438         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1439         pval = kcontrol->private_value;
1440         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
1441         for (i = 0; i < indices; i++) {
1442                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
1443                         (i << AMP_VAL_IDX_SHIFT);
1444                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
1445                 if (err < 0)
1446                         break;
1447                 change |= err;
1448         }
1449         kcontrol->private_value = pval;
1450         mutex_unlock(&codec->spdif_mutex);
1451         return err < 0 ? err : change;
1452 }
1453 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_put);
1454
1455 /*
1456  * generic bound volume/swtich controls
1457  */
1458 int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
1459                                  struct snd_ctl_elem_info *uinfo)
1460 {
1461         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1462         struct hda_bind_ctls *c;
1463         int err;
1464
1465         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1466         c = (struct hda_bind_ctls *)kcontrol->private_value;
1467         kcontrol->private_value = *c->values;
1468         err = c->ops->info(kcontrol, uinfo);
1469         kcontrol->private_value = (long)c;
1470         mutex_unlock(&codec->spdif_mutex);
1471         return err;
1472 }
1473 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_info);
1474
1475 int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
1476                                 struct snd_ctl_elem_value *ucontrol)
1477 {
1478         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1479         struct hda_bind_ctls *c;
1480         int err;
1481
1482         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1483         c = (struct hda_bind_ctls *)kcontrol->private_value;
1484         kcontrol->private_value = *c->values;
1485         err = c->ops->get(kcontrol, ucontrol);
1486         kcontrol->private_value = (long)c;
1487         mutex_unlock(&codec->spdif_mutex);
1488         return err;
1489 }
1490 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_get);
1491
1492 int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
1493                                 struct snd_ctl_elem_value *ucontrol)
1494 {
1495         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1496         struct hda_bind_ctls *c;
1497         unsigned long *vals;
1498         int err = 0, change = 0;
1499
1500         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1501         c = (struct hda_bind_ctls *)kcontrol->private_value;
1502         for (vals = c->values; *vals; vals++) {
1503                 kcontrol->private_value = *vals;
1504                 err = c->ops->put(kcontrol, ucontrol);
1505                 if (err < 0)
1506                         break;
1507                 change |= err;
1508         }
1509         kcontrol->private_value = (long)c;
1510         mutex_unlock(&codec->spdif_mutex);
1511         return err < 0 ? err : change;
1512 }
1513 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_put);
1514
1515 int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1516                            unsigned int size, unsigned int __user *tlv)
1517 {
1518         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1519         struct hda_bind_ctls *c;
1520         int err;
1521
1522         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
1523         c = (struct hda_bind_ctls *)kcontrol->private_value;
1524         kcontrol->private_value = *c->values;
1525         err = c->ops->tlv(kcontrol, op_flag, size, tlv);
1526         kcontrol->private_value = (long)c;
1527         mutex_unlock(&codec->spdif_mutex);
1528         return err;
1529 }
1530 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_tlv);
1531
1532 struct hda_ctl_ops snd_hda_bind_vol = {
1533         .info = snd_hda_mixer_amp_volume_info,
1534         .get = snd_hda_mixer_amp_volume_get,
1535         .put = snd_hda_mixer_amp_volume_put,
1536         .tlv = snd_hda_mixer_amp_tlv
1537 };
1538 EXPORT_SYMBOL_HDA(snd_hda_bind_vol);
1539
1540 struct hda_ctl_ops snd_hda_bind_sw = {
1541         .info = snd_hda_mixer_amp_switch_info,
1542         .get = snd_hda_mixer_amp_switch_get,
1543         .put = snd_hda_mixer_amp_switch_put,
1544         .tlv = snd_hda_mixer_amp_tlv
1545 };
1546 EXPORT_SYMBOL_HDA(snd_hda_bind_sw);
1547
1548 /*
1549  * SPDIF out controls
1550  */
1551
1552 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
1553                                    struct snd_ctl_elem_info *uinfo)
1554 {
1555         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1556         uinfo->count = 1;
1557         return 0;
1558 }
1559
1560 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
1561                                    struct snd_ctl_elem_value *ucontrol)
1562 {
1563         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1564                                            IEC958_AES0_NONAUDIO |
1565                                            IEC958_AES0_CON_EMPHASIS_5015 |
1566                                            IEC958_AES0_CON_NOT_COPYRIGHT;
1567         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
1568                                            IEC958_AES1_CON_ORIGINAL;
1569         return 0;
1570 }
1571
1572 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
1573                                    struct snd_ctl_elem_value *ucontrol)
1574 {
1575         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1576                                            IEC958_AES0_NONAUDIO |
1577                                            IEC958_AES0_PRO_EMPHASIS_5015;
1578         return 0;
1579 }
1580
1581 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
1582                                      struct snd_ctl_elem_value *ucontrol)
1583 {
1584         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1585
1586         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1587         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1588         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1589         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1590
1591         return 0;
1592 }
1593
1594 /* convert from SPDIF status bits to HDA SPDIF bits
1595  * bit 0 (DigEn) is always set zero (to be filled later)
1596  */
1597 static unsigned short convert_from_spdif_status(unsigned int sbits)
1598 {
1599         unsigned short val = 0;
1600
1601         if (sbits & IEC958_AES0_PROFESSIONAL)
1602                 val |= AC_DIG1_PROFESSIONAL;
1603         if (sbits & IEC958_AES0_NONAUDIO)
1604                 val |= AC_DIG1_NONAUDIO;
1605         if (sbits & IEC958_AES0_PROFESSIONAL) {
1606                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
1607                     IEC958_AES0_PRO_EMPHASIS_5015)
1608                         val |= AC_DIG1_EMPHASIS;
1609         } else {
1610                 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
1611                     IEC958_AES0_CON_EMPHASIS_5015)
1612                         val |= AC_DIG1_EMPHASIS;
1613                 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1614                         val |= AC_DIG1_COPYRIGHT;
1615                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1616                         val |= AC_DIG1_LEVEL;
1617                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1618         }
1619         return val;
1620 }
1621
1622 /* convert to SPDIF status bits from HDA SPDIF bits
1623  */
1624 static unsigned int convert_to_spdif_status(unsigned short val)
1625 {
1626         unsigned int sbits = 0;
1627
1628         if (val & AC_DIG1_NONAUDIO)
1629                 sbits |= IEC958_AES0_NONAUDIO;
1630         if (val & AC_DIG1_PROFESSIONAL)
1631                 sbits |= IEC958_AES0_PROFESSIONAL;
1632         if (sbits & IEC958_AES0_PROFESSIONAL) {
1633                 if (sbits & AC_DIG1_EMPHASIS)
1634                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1635         } else {
1636                 if (val & AC_DIG1_EMPHASIS)
1637                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1638                 if (!(val & AC_DIG1_COPYRIGHT))
1639                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1640                 if (val & AC_DIG1_LEVEL)
1641                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1642                 sbits |= val & (0x7f << 8);
1643         }
1644         return sbits;
1645 }
1646
1647 /* set digital convert verbs both for the given NID and its slaves */
1648 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
1649                         int verb, int val)
1650 {
1651         hda_nid_t *d;
1652
1653         snd_hda_codec_write_cache(codec, nid, 0, verb, val);
1654         d = codec->slave_dig_outs;
1655         if (!d)
1656                 return;
1657         for (; *d; d++)
1658                 snd_hda_codec_write_cache(codec, *d, 0, verb, val);
1659 }
1660
1661 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
1662                                        int dig1, int dig2)
1663 {
1664         if (dig1 != -1)
1665                 set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_1, dig1);
1666         if (dig2 != -1)
1667                 set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_2, dig2);
1668 }
1669
1670 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
1671                                      struct snd_ctl_elem_value *ucontrol)
1672 {
1673         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1674         hda_nid_t nid = kcontrol->private_value;
1675         unsigned short val;
1676         int change;
1677
1678         mutex_lock(&codec->spdif_mutex);
1679         codec->spdif_status = ucontrol->value.iec958.status[0] |
1680                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1681                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1682                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1683         val = convert_from_spdif_status(codec->spdif_status);
1684         val |= codec->spdif_ctls & 1;
1685         change = codec->spdif_ctls != val;
1686         codec->spdif_ctls = val;
1687
1688         if (change)
1689                 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
1690
1691         mutex_unlock(&codec->spdif_mutex);
1692         return change;
1693 }
1694
1695 #define snd_hda_spdif_out_switch_info   snd_ctl_boolean_mono_info
1696
1697 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
1698                                         struct snd_ctl_elem_value *ucontrol)
1699 {
1700         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1701
1702         ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
1703         return 0;
1704 }
1705
1706 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
1707                                         struct snd_ctl_elem_value *ucontrol)
1708 {
1709         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1710         hda_nid_t nid = kcontrol->private_value;
1711         unsigned short val;
1712         int change;
1713
1714         mutex_lock(&codec->spdif_mutex);
1715         val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
1716         if (ucontrol->value.integer.value[0])
1717                 val |= AC_DIG1_ENABLE;
1718         change = codec->spdif_ctls != val;
1719         if (change) {
1720                 codec->spdif_ctls = val;
1721                 set_dig_out_convert(codec, nid, val & 0xff, -1);
1722                 /* unmute amp switch (if any) */
1723                 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
1724                     (val & AC_DIG1_ENABLE))
1725                         snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
1726                                                  HDA_AMP_MUTE, 0);
1727         }
1728         mutex_unlock(&codec->spdif_mutex);
1729         return change;
1730 }
1731
1732 static struct snd_kcontrol_new dig_mixes[] = {
1733         {
1734                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1735                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1736                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1737                 .info = snd_hda_spdif_mask_info,
1738                 .get = snd_hda_spdif_cmask_get,
1739         },
1740         {
1741                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1742                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1743                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1744                 .info = snd_hda_spdif_mask_info,
1745                 .get = snd_hda_spdif_pmask_get,
1746         },
1747         {
1748                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1749                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1750                 .info = snd_hda_spdif_mask_info,
1751                 .get = snd_hda_spdif_default_get,
1752                 .put = snd_hda_spdif_default_put,
1753         },
1754         {
1755                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1756                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1757                 .info = snd_hda_spdif_out_switch_info,
1758                 .get = snd_hda_spdif_out_switch_get,
1759                 .put = snd_hda_spdif_out_switch_put,
1760         },
1761         { } /* end */
1762 };
1763
1764 #define SPDIF_MAX_IDX   4       /* 4 instances should be enough to probe */
1765
1766 /**
1767  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1768  * @codec: the HDA codec
1769  * @nid: audio out widget NID
1770  *
1771  * Creates controls related with the SPDIF output.
1772  * Called from each patch supporting the SPDIF out.
1773  *
1774  * Returns 0 if successful, or a negative error code.
1775  */
1776 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1777 {
1778         int err;
1779         struct snd_kcontrol *kctl;
1780         struct snd_kcontrol_new *dig_mix;
1781         int idx;
1782
1783         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1784                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Playback Switch",
1785                                              idx))
1786                         break;
1787         }
1788         if (idx >= SPDIF_MAX_IDX) {
1789                 printk(KERN_ERR "hda_codec: too many IEC958 outputs\n");
1790                 return -EBUSY;
1791         }
1792         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1793                 kctl = snd_ctl_new1(dig_mix, codec);
1794                 if (!kctl)
1795                         return -ENOMEM;
1796                 kctl->id.index = idx;
1797                 kctl->private_value = nid;
1798                 err = snd_hda_ctl_add(codec, kctl);
1799                 if (err < 0)
1800                         return err;
1801         }
1802         codec->spdif_ctls =
1803                 snd_hda_codec_read(codec, nid, 0,
1804                                    AC_VERB_GET_DIGI_CONVERT_1, 0);
1805         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1806         return 0;
1807 }
1808 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_out_ctls);
1809
1810 /*
1811  * SPDIF sharing with analog output
1812  */
1813 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
1814                               struct snd_ctl_elem_value *ucontrol)
1815 {
1816         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1817         ucontrol->value.integer.value[0] = mout->share_spdif;
1818         return 0;
1819 }
1820
1821 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
1822                               struct snd_ctl_elem_value *ucontrol)
1823 {
1824         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1825         mout->share_spdif = !!ucontrol->value.integer.value[0];
1826         return 0;
1827 }
1828
1829 static struct snd_kcontrol_new spdif_share_sw = {
1830         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1831         .name = "IEC958 Default PCM Playback Switch",
1832         .info = snd_ctl_boolean_mono_info,
1833         .get = spdif_share_sw_get,
1834         .put = spdif_share_sw_put,
1835 };
1836
1837 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
1838                                   struct hda_multi_out *mout)
1839 {
1840         if (!mout->dig_out_nid)
1841                 return 0;
1842         /* ATTENTION: here mout is passed as private_data, instead of codec */
1843         return snd_hda_ctl_add(codec,
1844                            snd_ctl_new1(&spdif_share_sw, mout));
1845 }
1846 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_share_sw);
1847
1848 /*
1849  * SPDIF input
1850  */
1851
1852 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1853
1854 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
1855                                        struct snd_ctl_elem_value *ucontrol)
1856 {
1857         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1858
1859         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1860         return 0;
1861 }
1862
1863 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
1864                                        struct snd_ctl_elem_value *ucontrol)
1865 {
1866         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1867         hda_nid_t nid = kcontrol->private_value;
1868         unsigned int val = !!ucontrol->value.integer.value[0];
1869         int change;
1870
1871         mutex_lock(&codec->spdif_mutex);
1872         change = codec->spdif_in_enable != val;
1873         if (change) {
1874                 codec->spdif_in_enable = val;
1875                 snd_hda_codec_write_cache(codec, nid, 0,
1876                                           AC_VERB_SET_DIGI_CONVERT_1, val);
1877         }
1878         mutex_unlock(&codec->spdif_mutex);
1879         return change;
1880 }
1881
1882 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
1883                                        struct snd_ctl_elem_value *ucontrol)
1884 {
1885         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1886         hda_nid_t nid = kcontrol->private_value;
1887         unsigned short val;
1888         unsigned int sbits;
1889
1890         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0);
1891         sbits = convert_to_spdif_status(val);
1892         ucontrol->value.iec958.status[0] = sbits;
1893         ucontrol->value.iec958.status[1] = sbits >> 8;
1894         ucontrol->value.iec958.status[2] = sbits >> 16;
1895         ucontrol->value.iec958.status[3] = sbits >> 24;
1896         return 0;
1897 }
1898
1899 static struct snd_kcontrol_new dig_in_ctls[] = {
1900         {
1901                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1902                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1903                 .info = snd_hda_spdif_in_switch_info,
1904                 .get = snd_hda_spdif_in_switch_get,
1905                 .put = snd_hda_spdif_in_switch_put,
1906         },
1907         {
1908                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1909                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1910                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1911                 .info = snd_hda_spdif_mask_info,
1912                 .get = snd_hda_spdif_in_status_get,
1913         },
1914         { } /* end */
1915 };
1916
1917 /**
1918  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1919  * @codec: the HDA codec
1920  * @nid: audio in widget NID
1921  *
1922  * Creates controls related with the SPDIF input.
1923  * Called from each patch supporting the SPDIF in.
1924  *
1925  * Returns 0 if successful, or a negative error code.
1926  */
1927 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1928 {
1929         int err;
1930         struct snd_kcontrol *kctl;
1931         struct snd_kcontrol_new *dig_mix;
1932         int idx;
1933
1934         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1935                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Capture Switch",
1936                                              idx))
1937                         break;
1938         }
1939         if (idx >= SPDIF_MAX_IDX) {
1940                 printk(KERN_ERR "hda_codec: too many IEC958 inputs\n");
1941                 return -EBUSY;
1942         }
1943         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1944                 kctl = snd_ctl_new1(dig_mix, codec);
1945                 kctl->private_value = nid;
1946                 err = snd_hda_ctl_add(codec, kctl);
1947                 if (err < 0)
1948                         return err;
1949         }
1950         codec->spdif_in_enable =
1951                 snd_hda_codec_read(codec, nid, 0,
1952                                    AC_VERB_GET_DIGI_CONVERT_1, 0) &
1953                 AC_DIG1_ENABLE;
1954         return 0;
1955 }
1956 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_in_ctls);
1957
1958 #ifdef SND_HDA_NEEDS_RESUME
1959 /*
1960  * command cache
1961  */
1962
1963 /* build a 32bit cache key with the widget id and the command parameter */
1964 #define build_cmd_cache_key(nid, verb)  ((verb << 8) | nid)
1965 #define get_cmd_cache_nid(key)          ((key) & 0xff)
1966 #define get_cmd_cache_cmd(key)          (((key) >> 8) & 0xffff)
1967
1968 /**
1969  * snd_hda_codec_write_cache - send a single command with caching
1970  * @codec: the HDA codec
1971  * @nid: NID to send the command
1972  * @direct: direct flag
1973  * @verb: the verb to send
1974  * @parm: the parameter for the verb
1975  *
1976  * Send a single command without waiting for response.
1977  *
1978  * Returns 0 if successful, or a negative error code.
1979  */
1980 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
1981                               int direct, unsigned int verb, unsigned int parm)
1982 {
1983         struct hda_bus *bus = codec->bus;
1984         unsigned int res;
1985         int err;
1986
1987         res = make_codec_cmd(codec, nid, direct, verb, parm);
1988         snd_hda_power_up(codec);
1989         mutex_lock(&bus->cmd_mutex);
1990         err = bus->ops.command(bus, res);
1991         if (!err) {
1992                 struct hda_cache_head *c;
1993                 u32 key = build_cmd_cache_key(nid, verb);
1994                 c = get_alloc_hash(&codec->cmd_cache, key);
1995                 if (c)
1996                         c->val = parm;
1997         }
1998         mutex_unlock(&bus->cmd_mutex);
1999         snd_hda_power_down(codec);
2000         return err;
2001 }
2002 EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
2003
2004 /* resume the all commands from the cache */
2005 void snd_hda_codec_resume_cache(struct hda_codec *codec)
2006 {
2007         struct hda_cache_head *buffer = codec->cmd_cache.buf.list;
2008         int i;
2009
2010         for (i = 0; i < codec->cmd_cache.buf.used; i++, buffer++) {
2011                 u32 key = buffer->key;
2012                 if (!key)
2013                         continue;
2014                 snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0,
2015                                     get_cmd_cache_cmd(key), buffer->val);
2016         }
2017 }
2018 EXPORT_SYMBOL_HDA(snd_hda_codec_resume_cache);
2019
2020 /**
2021  * snd_hda_sequence_write_cache - sequence writes with caching
2022  * @codec: the HDA codec
2023  * @seq: VERB array to send
2024  *
2025  * Send the commands sequentially from the given array.
2026  * Thte commands are recorded on cache for power-save and resume.
2027  * The array must be terminated with NID=0.
2028  */
2029 void snd_hda_sequence_write_cache(struct hda_codec *codec,
2030                                   const struct hda_verb *seq)
2031 {
2032         for (; seq->nid; seq++)
2033                 snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb,
2034                                           seq->param);
2035 }
2036 EXPORT_SYMBOL_HDA(snd_hda_sequence_write_cache);
2037 #endif /* SND_HDA_NEEDS_RESUME */
2038
2039 /*
2040  * set power state of the codec
2041  */
2042 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2043                                 unsigned int power_state)
2044 {
2045         hda_nid_t nid;
2046         int i;
2047
2048         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
2049                             power_state);
2050         msleep(10); /* partial workaround for "azx_get_response timeout" */
2051
2052         nid = codec->start_nid;
2053         for (i = 0; i < codec->num_nodes; i++, nid++) {
2054                 unsigned int wcaps = get_wcaps(codec, nid);
2055                 if (wcaps & AC_WCAP_POWER) {
2056                         unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
2057                                 AC_WCAP_TYPE_SHIFT;
2058                         if (wid_type == AC_WID_PIN) {
2059                                 unsigned int pincap;
2060                                 /*
2061                                  * don't power down the widget if it controls
2062                                  * eapd and EAPD_BTLENABLE is set.
2063                                  */
2064                                 pincap = snd_hda_param_read(codec, nid,
2065                                                             AC_PAR_PIN_CAP);
2066                                 if (pincap & AC_PINCAP_EAPD) {
2067                                         int eapd = snd_hda_codec_read(codec,
2068                                                 nid, 0,
2069                                                 AC_VERB_GET_EAPD_BTLENABLE, 0);
2070                                         eapd &= 0x02;
2071                                         if (power_state == AC_PWRST_D3 && eapd)
2072                                                 continue;
2073                                 }
2074                         }
2075                         snd_hda_codec_write(codec, nid, 0,
2076                                             AC_VERB_SET_POWER_STATE,
2077                                             power_state);
2078                 }
2079         }
2080
2081         if (power_state == AC_PWRST_D0) {
2082                 unsigned long end_time;
2083                 int state;
2084                 msleep(10);
2085                 /* wait until the codec reachs to D0 */
2086                 end_time = jiffies + msecs_to_jiffies(500);
2087                 do {
2088                         state = snd_hda_codec_read(codec, fg, 0,
2089                                                    AC_VERB_GET_POWER_STATE, 0);
2090                         if (state == power_state)
2091                                 break;
2092                         msleep(1);
2093                 } while (time_after_eq(end_time, jiffies));
2094         }
2095 }
2096
2097 #ifdef CONFIG_SND_HDA_HWDEP
2098 /* execute additional init verbs */
2099 static void hda_exec_init_verbs(struct hda_codec *codec)
2100 {
2101         if (codec->init_verbs.list)
2102                 snd_hda_sequence_write(codec, codec->init_verbs.list);
2103 }
2104 #else
2105 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2106 #endif
2107
2108 #ifdef SND_HDA_NEEDS_RESUME
2109 /*
2110  * call suspend and power-down; used both from PM and power-save
2111  */
2112 static void hda_call_codec_suspend(struct hda_codec *codec)
2113 {
2114         if (codec->patch_ops.suspend)
2115                 codec->patch_ops.suspend(codec, PMSG_SUSPEND);
2116         hda_set_power_state(codec,
2117                             codec->afg ? codec->afg : codec->mfg,
2118                             AC_PWRST_D3);
2119 #ifdef CONFIG_SND_HDA_POWER_SAVE
2120         cancel_delayed_work(&codec->power_work);
2121         codec->power_on = 0;
2122         codec->power_transition = 0;
2123 #endif
2124 }
2125
2126 /*
2127  * kick up codec; used both from PM and power-save
2128  */
2129 static void hda_call_codec_resume(struct hda_codec *codec)
2130 {
2131         hda_set_power_state(codec,
2132                             codec->afg ? codec->afg : codec->mfg,
2133                             AC_PWRST_D0);
2134         hda_exec_init_verbs(codec);
2135         if (codec->patch_ops.resume)
2136                 codec->patch_ops.resume(codec);
2137         else {
2138                 if (codec->patch_ops.init)
2139                         codec->patch_ops.init(codec);
2140                 snd_hda_codec_resume_amp(codec);
2141                 snd_hda_codec_resume_cache(codec);
2142         }
2143 }
2144 #endif /* SND_HDA_NEEDS_RESUME */
2145
2146
2147 /**
2148  * snd_hda_build_controls - build mixer controls
2149  * @bus: the BUS
2150  *
2151  * Creates mixer controls for each codec included in the bus.
2152  *
2153  * Returns 0 if successful, otherwise a negative error code.
2154  */
2155 int /*__devinit*/ snd_hda_build_controls(struct hda_bus *bus)
2156 {
2157         struct hda_codec *codec;
2158
2159         list_for_each_entry(codec, &bus->codec_list, list) {
2160                 int err = snd_hda_codec_build_controls(codec);
2161                 if (err < 0)
2162                         return err;
2163         }
2164         return 0;
2165 }
2166 EXPORT_SYMBOL_HDA(snd_hda_build_controls);
2167
2168 int snd_hda_codec_build_controls(struct hda_codec *codec)
2169 {
2170         int err = 0;
2171         /* fake as if already powered-on */
2172         hda_keep_power_on(codec);
2173         /* then fire up */
2174         hda_set_power_state(codec,
2175                             codec->afg ? codec->afg : codec->mfg,
2176                             AC_PWRST_D0);
2177         hda_exec_init_verbs(codec);
2178         /* continue to initialize... */
2179         if (codec->patch_ops.init)
2180                 err = codec->patch_ops.init(codec);
2181         if (!err && codec->patch_ops.build_controls)
2182                 err = codec->patch_ops.build_controls(codec);
2183         snd_hda_power_down(codec);
2184         if (err < 0)
2185                 return err;
2186         return 0;
2187 }
2188
2189 /*
2190  * stream formats
2191  */
2192 struct hda_rate_tbl {
2193         unsigned int hz;
2194         unsigned int alsa_bits;
2195         unsigned int hda_fmt;
2196 };
2197
2198 static struct hda_rate_tbl rate_bits[] = {
2199         /* rate in Hz, ALSA rate bitmask, HDA format value */
2200
2201         /* autodetected value used in snd_hda_query_supported_pcm */
2202         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
2203         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
2204         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
2205         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
2206         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
2207         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
2208         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
2209         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
2210         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
2211         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
2212         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
2213 #define AC_PAR_PCM_RATE_BITS    11
2214         /* up to bits 10, 384kHZ isn't supported properly */
2215
2216         /* not autodetected value */
2217         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
2218
2219         { 0 } /* terminator */
2220 };
2221
2222 /**
2223  * snd_hda_calc_stream_format - calculate format bitset
2224  * @rate: the sample rate
2225  * @channels: the number of channels
2226  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
2227  * @maxbps: the max. bps
2228  *
2229  * Calculate the format bitset from the given rate, channels and th PCM format.
2230  *
2231  * Return zero if invalid.
2232  */
2233 unsigned int snd_hda_calc_stream_format(unsigned int rate,
2234                                         unsigned int channels,
2235                                         unsigned int format,
2236                                         unsigned int maxbps)
2237 {
2238         int i;
2239         unsigned int val = 0;
2240
2241         for (i = 0; rate_bits[i].hz; i++)
2242                 if (rate_bits[i].hz == rate) {
2243                         val = rate_bits[i].hda_fmt;
2244                         break;
2245                 }
2246         if (!rate_bits[i].hz) {
2247                 snd_printdd("invalid rate %d\n", rate);
2248                 return 0;
2249         }
2250
2251         if (channels == 0 || channels > 8) {
2252                 snd_printdd("invalid channels %d\n", channels);
2253                 return 0;
2254         }
2255         val |= channels - 1;
2256
2257         switch (snd_pcm_format_width(format)) {
2258         case 8:  val |= 0x00; break;
2259         case 16: val |= 0x10; break;
2260         case 20:
2261         case 24:
2262         case 32:
2263                 if (maxbps >= 32)
2264                         val |= 0x40;
2265                 else if (maxbps >= 24)
2266                         val |= 0x30;
2267                 else
2268                         val |= 0x20;
2269                 break;
2270         default:
2271                 snd_printdd("invalid format width %d\n",
2272                             snd_pcm_format_width(format));
2273                 return 0;
2274         }
2275
2276         return val;
2277 }
2278 EXPORT_SYMBOL_HDA(snd_hda_calc_stream_format);
2279
2280 /**
2281  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
2282  * @codec: the HDA codec
2283  * @nid: NID to query
2284  * @ratesp: the pointer to store the detected rate bitflags
2285  * @formatsp: the pointer to store the detected formats
2286  * @bpsp: the pointer to store the detected format widths
2287  *
2288  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
2289  * or @bsps argument is ignored.
2290  *
2291  * Returns 0 if successful, otherwise a negative error code.
2292  */
2293 static int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
2294                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
2295 {
2296         int i;
2297         unsigned int val, streams;
2298
2299         val = 0;
2300         if (nid != codec->afg &&
2301             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2302                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2303                 if (val == -1)
2304                         return -EIO;
2305         }
2306         if (!val)
2307                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2308
2309         if (ratesp) {
2310                 u32 rates = 0;
2311                 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
2312                         if (val & (1 << i))
2313                                 rates |= rate_bits[i].alsa_bits;
2314                 }
2315                 *ratesp = rates;
2316         }
2317
2318         if (formatsp || bpsp) {
2319                 u64 formats = 0;
2320                 unsigned int bps;
2321                 unsigned int wcaps;
2322
2323                 wcaps = get_wcaps(codec, nid);
2324                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2325                 if (streams == -1)
2326                         return -EIO;
2327                 if (!streams) {
2328                         streams = snd_hda_param_read(codec, codec->afg,
2329                                                      AC_PAR_STREAM);
2330                         if (streams == -1)
2331                                 return -EIO;
2332                 }
2333
2334                 bps = 0;
2335                 if (streams & AC_SUPFMT_PCM) {
2336                         if (val & AC_SUPPCM_BITS_8) {
2337                                 formats |= SNDRV_PCM_FMTBIT_U8;
2338                                 bps = 8;
2339                         }
2340                         if (val & AC_SUPPCM_BITS_16) {
2341                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
2342                                 bps = 16;
2343                         }
2344                         if (wcaps & AC_WCAP_DIGITAL) {
2345                                 if (val & AC_SUPPCM_BITS_32)
2346                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
2347                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
2348                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
2349                                 if (val & AC_SUPPCM_BITS_24)
2350                                         bps = 24;
2351                                 else if (val & AC_SUPPCM_BITS_20)
2352                                         bps = 20;
2353                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
2354                                           AC_SUPPCM_BITS_32)) {
2355                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
2356                                 if (val & AC_SUPPCM_BITS_32)
2357                                         bps = 32;
2358                                 else if (val & AC_SUPPCM_BITS_24)
2359                                         bps = 24;
2360                                 else if (val & AC_SUPPCM_BITS_20)
2361                                         bps = 20;
2362                         }
2363                 }
2364                 else if (streams == AC_SUPFMT_FLOAT32) {
2365                         /* should be exclusive */
2366                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
2367                         bps = 32;
2368                 } else if (streams == AC_SUPFMT_AC3) {
2369                         /* should be exclusive */
2370                         /* temporary hack: we have still no proper support
2371                          * for the direct AC3 stream...
2372                          */
2373                         formats |= SNDRV_PCM_FMTBIT_U8;
2374                         bps = 8;
2375                 }
2376                 if (formatsp)
2377                         *formatsp = formats;
2378                 if (bpsp)
2379                         *bpsp = bps;
2380         }
2381
2382         return 0;
2383 }
2384
2385 /**
2386  * snd_hda_is_supported_format - check whether the given node supports
2387  * the format val
2388  *
2389  * Returns 1 if supported, 0 if not.
2390  */
2391 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
2392                                 unsigned int format)
2393 {
2394         int i;
2395         unsigned int val = 0, rate, stream;
2396
2397         if (nid != codec->afg &&
2398             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2399                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2400                 if (val == -1)
2401                         return 0;
2402         }
2403         if (!val) {
2404                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2405                 if (val == -1)
2406                         return 0;
2407         }
2408
2409         rate = format & 0xff00;
2410         for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
2411                 if (rate_bits[i].hda_fmt == rate) {
2412                         if (val & (1 << i))
2413                                 break;
2414                         return 0;
2415                 }
2416         if (i >= AC_PAR_PCM_RATE_BITS)
2417                 return 0;
2418
2419         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2420         if (stream == -1)
2421                 return 0;
2422         if (!stream && nid != codec->afg)
2423                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
2424         if (!stream || stream == -1)
2425                 return 0;
2426
2427         if (stream & AC_SUPFMT_PCM) {
2428                 switch (format & 0xf0) {
2429                 case 0x00:
2430                         if (!(val & AC_SUPPCM_BITS_8))
2431                                 return 0;
2432                         break;
2433                 case 0x10:
2434                         if (!(val & AC_SUPPCM_BITS_16))
2435                                 return 0;
2436                         break;
2437                 case 0x20:
2438                         if (!(val & AC_SUPPCM_BITS_20))
2439                                 return 0;
2440                         break;
2441                 case 0x30:
2442                         if (!(val & AC_SUPPCM_BITS_24))
2443                                 return 0;
2444                         break;
2445                 case 0x40:
2446                         if (!(val & AC_SUPPCM_BITS_32))
2447                                 return 0;
2448                         break;
2449                 default:
2450                         return 0;
2451                 }
2452         } else {
2453                 /* FIXME: check for float32 and AC3? */
2454         }
2455
2456         return 1;
2457 }
2458 EXPORT_SYMBOL_HDA(snd_hda_is_supported_format);
2459
2460 /*
2461  * PCM stuff
2462  */
2463 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
2464                                       struct hda_codec *codec,
2465                                       struct snd_pcm_substream *substream)
2466 {
2467         return 0;
2468 }
2469
2470 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
2471                                    struct hda_codec *codec,
2472                                    unsigned int stream_tag,
2473                                    unsigned int format,
2474                                    struct snd_pcm_substream *substream)
2475 {
2476         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
2477         return 0;
2478 }
2479
2480 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
2481                                    struct hda_codec *codec,
2482                                    struct snd_pcm_substream *substream)
2483 {
2484         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
2485         return 0;
2486 }
2487
2488 static int set_pcm_default_values(struct hda_codec *codec,
2489                                   struct hda_pcm_stream *info)
2490 {
2491         /* query support PCM information from the given NID */
2492         if (info->nid && (!info->rates || !info->formats)) {
2493                 snd_hda_query_supported_pcm(codec, info->nid,
2494                                 info->rates ? NULL : &info->rates,
2495                                 info->formats ? NULL : &info->formats,
2496                                 info->maxbps ? NULL : &info->maxbps);
2497         }
2498         if (info->ops.open == NULL)
2499                 info->ops.open = hda_pcm_default_open_close;
2500         if (info->ops.close == NULL)
2501                 info->ops.close = hda_pcm_default_open_close;
2502         if (info->ops.prepare == NULL) {
2503                 if (snd_BUG_ON(!info->nid))
2504                         return -EINVAL;
2505                 info->ops.prepare = hda_pcm_default_prepare;
2506         }
2507         if (info->ops.cleanup == NULL) {
2508                 if (snd_BUG_ON(!info->nid))
2509                         return -EINVAL;
2510                 info->ops.cleanup = hda_pcm_default_cleanup;
2511         }
2512         return 0;
2513 }
2514
2515 /*
2516  * get the empty PCM device number to assign
2517  */
2518 static int get_empty_pcm_device(struct hda_bus *bus, int type)
2519 {
2520         static const char *dev_name[HDA_PCM_NTYPES] = {
2521                 "Audio", "SPDIF", "HDMI", "Modem"
2522         };
2523         /* starting device index for each PCM type */
2524         static int dev_idx[HDA_PCM_NTYPES] = {
2525                 [HDA_PCM_TYPE_AUDIO] = 0,
2526                 [HDA_PCM_TYPE_SPDIF] = 1,
2527                 [HDA_PCM_TYPE_HDMI] = 3,
2528                 [HDA_PCM_TYPE_MODEM] = 6
2529         };
2530         /* normal audio device indices; not linear to keep compatibility */
2531         static int audio_idx[4] = { 0, 2, 4, 5 };
2532         int i, dev;
2533
2534         switch (type) {
2535         case HDA_PCM_TYPE_AUDIO:
2536                 for (i = 0; i < ARRAY_SIZE(audio_idx); i++) {
2537                         dev = audio_idx[i];
2538                         if (!test_bit(dev, bus->pcm_dev_bits))
2539                                 break;
2540                 }
2541                 if (i >= ARRAY_SIZE(audio_idx)) {
2542                         snd_printk(KERN_WARNING "Too many audio devices\n");
2543                         return -EAGAIN;
2544                 }
2545                 break;
2546         case HDA_PCM_TYPE_SPDIF:
2547         case HDA_PCM_TYPE_HDMI:
2548         case HDA_PCM_TYPE_MODEM:
2549                 dev = dev_idx[type];
2550                 if (test_bit(dev, bus->pcm_dev_bits)) {
2551                         snd_printk(KERN_WARNING "%s already defined\n",
2552                                    dev_name[type]);
2553                         return -EAGAIN;
2554                 }
2555                 break;
2556         default:
2557                 snd_printk(KERN_WARNING "Invalid PCM type %d\n", type);
2558                 return -EINVAL;
2559         }
2560         set_bit(dev, bus->pcm_dev_bits);
2561         return dev;
2562 }
2563
2564 /*
2565  * attach a new PCM stream
2566  */
2567 static int snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
2568 {
2569         struct hda_bus *bus = codec->bus;
2570         struct hda_pcm_stream *info;
2571         int stream, err;
2572
2573         if (snd_BUG_ON(!pcm->name))
2574                 return -EINVAL;
2575         for (stream = 0; stream < 2; stream++) {
2576                 info = &pcm->stream[stream];
2577                 if (info->substreams) {
2578                         err = set_pcm_default_values(codec, info);
2579                         if (err < 0)
2580                                 return err;
2581                 }
2582         }
2583         return bus->ops.attach_pcm(bus, codec, pcm);
2584 }
2585
2586 /* assign all PCMs of the given codec */
2587 int snd_hda_codec_build_pcms(struct hda_codec *codec)
2588 {
2589         unsigned int pcm;
2590         int err;
2591
2592         if (!codec->num_pcms) {
2593                 if (!codec->patch_ops.build_pcms)
2594                         return 0;
2595                 err = codec->patch_ops.build_pcms(codec);
2596                 if (err < 0)
2597                         return err;
2598         }
2599         for (pcm = 0; pcm < codec->num_pcms; pcm++) {
2600                 struct hda_pcm *cpcm = &codec->pcm_info[pcm];
2601                 int dev;
2602
2603                 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
2604                         return 0; /* no substreams assigned */
2605
2606                 if (!cpcm->pcm) {
2607                         dev = get_empty_pcm_device(codec->bus, cpcm->pcm_type);
2608                         if (dev < 0)
2609                                 return 0;
2610                         cpcm->device = dev;
2611                         err = snd_hda_attach_pcm(codec, cpcm);
2612                         if (err < 0)
2613                                 return err;
2614                 }
2615         }
2616         return 0;
2617 }
2618
2619 /**
2620  * snd_hda_build_pcms - build PCM information
2621  * @bus: the BUS
2622  *
2623  * Create PCM information for each codec included in the bus.
2624  *
2625  * The build_pcms codec patch is requested to set up codec->num_pcms and
2626  * codec->pcm_info properly.  The array is referred by the top-level driver
2627  * to create its PCM instances.
2628  * The allocated codec->pcm_info should be released in codec->patch_ops.free
2629  * callback.
2630  *
2631  * At least, substreams, channels_min and channels_max must be filled for
2632  * each stream.  substreams = 0 indicates that the stream doesn't exist.
2633  * When rates and/or formats are zero, the supported values are queried
2634  * from the given nid.  The nid is used also by the default ops.prepare
2635  * and ops.cleanup callbacks.
2636  *
2637  * The driver needs to call ops.open in its open callback.  Similarly,
2638  * ops.close is supposed to be called in the close callback.
2639  * ops.prepare should be called in the prepare or hw_params callback
2640  * with the proper parameters for set up.
2641  * ops.cleanup should be called in hw_free for clean up of streams.
2642  *
2643  * This function returns 0 if successfull, or a negative error code.
2644  */
2645 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
2646 {
2647         struct hda_codec *codec;
2648
2649         list_for_each_entry(codec, &bus->codec_list, list) {
2650                 int err = snd_hda_codec_build_pcms(codec);
2651                 if (err < 0)
2652                         return err;
2653         }
2654         return 0;
2655 }
2656 EXPORT_SYMBOL_HDA(snd_hda_build_pcms);
2657
2658 /**
2659  * snd_hda_check_board_config - compare the current codec with the config table
2660  * @codec: the HDA codec
2661  * @num_configs: number of config enums
2662  * @models: array of model name strings
2663  * @tbl: configuration table, terminated by null entries
2664  *
2665  * Compares the modelname or PCI subsystem id of the current codec with the
2666  * given configuration table.  If a matching entry is found, returns its
2667  * config value (supposed to be 0 or positive).
2668  *
2669  * If no entries are matching, the function returns a negative value.
2670  */
2671 int snd_hda_check_board_config(struct hda_codec *codec,
2672                                int num_configs, const char **models,
2673                                const struct snd_pci_quirk *tbl)
2674 {
2675         if (codec->modelname && models) {
2676                 int i;
2677                 for (i = 0; i < num_configs; i++) {
2678                         if (models[i] &&
2679                             !strcmp(codec->modelname, models[i])) {
2680                                 snd_printd(KERN_INFO "hda_codec: model '%s' is "
2681                                            "selected\n", models[i]);
2682                                 return i;
2683                         }
2684                 }
2685         }
2686
2687         if (!codec->bus->pci || !tbl)
2688                 return -1;
2689
2690         tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
2691         if (!tbl)
2692                 return -1;
2693         if (tbl->value >= 0 && tbl->value < num_configs) {
2694 #ifdef CONFIG_SND_DEBUG_VERBOSE
2695                 char tmp[10];
2696                 const char *model = NULL;
2697                 if (models)
2698                         model = models[tbl->value];
2699                 if (!model) {
2700                         sprintf(tmp, "#%d", tbl->value);
2701                         model = tmp;
2702                 }
2703                 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
2704                             "for config %x:%x (%s)\n",
2705                             model, tbl->subvendor, tbl->subdevice,
2706                             (tbl->name ? tbl->name : "Unknown device"));
2707 #endif
2708                 return tbl->value;
2709         }
2710         return -1;
2711 }
2712 EXPORT_SYMBOL_HDA(snd_hda_check_board_config);
2713
2714 /**
2715  * snd_hda_add_new_ctls - create controls from the array
2716  * @codec: the HDA codec
2717  * @knew: the array of struct snd_kcontrol_new
2718  *
2719  * This helper function creates and add new controls in the given array.
2720  * The array must be terminated with an empty entry as terminator.
2721  *
2722  * Returns 0 if successful, or a negative error code.
2723  */
2724 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2725 {
2726         int err;
2727
2728         for (; knew->name; knew++) {
2729                 struct snd_kcontrol *kctl;
2730                 kctl = snd_ctl_new1(knew, codec);
2731                 if (!kctl)
2732                         return -ENOMEM;
2733                 err = snd_hda_ctl_add(codec, kctl);
2734                 if (err < 0) {
2735                         if (!codec->addr)
2736                                 return err;
2737                         kctl = snd_ctl_new1(knew, codec);
2738                         if (!kctl)
2739                                 return -ENOMEM;
2740                         kctl->id.device = codec->addr;
2741                         err = snd_hda_ctl_add(codec, kctl);
2742                         if (err < 0)
2743                                 return err;
2744                 }
2745         }
2746         return 0;
2747 }
2748 EXPORT_SYMBOL_HDA(snd_hda_add_new_ctls);
2749
2750 #ifdef CONFIG_SND_HDA_POWER_SAVE
2751 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2752                                 unsigned int power_state);
2753
2754 static void hda_power_work(struct work_struct *work)
2755 {
2756         struct hda_codec *codec =
2757                 container_of(work, struct hda_codec, power_work.work);
2758         struct hda_bus *bus = codec->bus;
2759
2760         if (!codec->power_on || codec->power_count) {
2761                 codec->power_transition = 0;
2762                 return;
2763         }
2764
2765         hda_call_codec_suspend(codec);
2766         if (bus->ops.pm_notify)
2767                 bus->ops.pm_notify(bus);
2768 }
2769
2770 static void hda_keep_power_on(struct hda_codec *codec)
2771 {
2772         codec->power_count++;
2773         codec->power_on = 1;
2774 }
2775
2776 void snd_hda_power_up(struct hda_codec *codec)
2777 {
2778         struct hda_bus *bus = codec->bus;
2779
2780         codec->power_count++;
2781         if (codec->power_on || codec->power_transition)
2782                 return;
2783
2784         codec->power_on = 1;
2785         if (bus->ops.pm_notify)
2786                 bus->ops.pm_notify(bus);
2787         hda_call_codec_resume(codec);
2788         cancel_delayed_work(&codec->power_work);
2789         codec->power_transition = 0;
2790 }
2791 EXPORT_SYMBOL_HDA(snd_hda_power_up);
2792
2793 #define power_save(codec)       \
2794         ((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
2795
2796 #define power_save(codec)       \
2797         ((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
2798
2799 void snd_hda_power_down(struct hda_codec *codec)
2800 {
2801         --codec->power_count;
2802         if (!codec->power_on || codec->power_count || codec->power_transition)
2803                 return;
2804         if (power_save(codec)) {
2805                 codec->power_transition = 1; /* avoid reentrance */
2806                 schedule_delayed_work(&codec->power_work,
2807                                 msecs_to_jiffies(power_save(codec) * 1000));
2808         }
2809 }
2810 EXPORT_SYMBOL_HDA(snd_hda_power_down);
2811
2812 int snd_hda_check_amp_list_power(struct hda_codec *codec,
2813                                  struct hda_loopback_check *check,
2814                                  hda_nid_t nid)
2815 {
2816         struct hda_amp_list *p;
2817         int ch, v;
2818
2819         if (!check->amplist)
2820                 return 0;
2821         for (p = check->amplist; p->nid; p++) {
2822                 if (p->nid == nid)
2823                         break;
2824         }
2825         if (!p->nid)
2826                 return 0; /* nothing changed */
2827
2828         for (p = check->amplist; p->nid; p++) {
2829                 for (ch = 0; ch < 2; ch++) {
2830                         v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
2831                                                    p->idx);
2832                         if (!(v & HDA_AMP_MUTE) && v > 0) {
2833                                 if (!check->power_on) {
2834                                         check->power_on = 1;
2835                                         snd_hda_power_up(codec);
2836                                 }
2837                                 return 1;
2838                         }
2839                 }
2840         }
2841         if (check->power_on) {
2842                 check->power_on = 0;
2843                 snd_hda_power_down(codec);
2844         }
2845         return 0;
2846 }
2847 EXPORT_SYMBOL_HDA(snd_hda_check_amp_list_power);
2848 #endif
2849
2850 /*
2851  * Channel mode helper
2852  */
2853 int snd_hda_ch_mode_info(struct hda_codec *codec,
2854                          struct snd_ctl_elem_info *uinfo,
2855                          const struct hda_channel_mode *chmode,
2856                          int num_chmodes)
2857 {
2858         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2859         uinfo->count = 1;
2860         uinfo->value.enumerated.items = num_chmodes;
2861         if (uinfo->value.enumerated.item >= num_chmodes)
2862                 uinfo->value.enumerated.item = num_chmodes - 1;
2863         sprintf(uinfo->value.enumerated.name, "%dch",
2864                 chmode[uinfo->value.enumerated.item].channels);
2865         return 0;
2866 }
2867 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_info);
2868
2869 int snd_hda_ch_mode_get(struct hda_codec *codec,
2870                         struct snd_ctl_elem_value *ucontrol,
2871                         const struct hda_channel_mode *chmode,
2872                         int num_chmodes,
2873                         int max_channels)
2874 {
2875         int i;
2876
2877         for (i = 0; i < num_chmodes; i++) {
2878                 if (max_channels == chmode[i].channels) {
2879                         ucontrol->value.enumerated.item[0] = i;
2880                         break;
2881                 }
2882         }
2883         return 0;
2884 }
2885 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_get);
2886
2887 int snd_hda_ch_mode_put(struct hda_codec *codec,
2888                         struct snd_ctl_elem_value *ucontrol,
2889                         const struct hda_channel_mode *chmode,
2890                         int num_chmodes,
2891                         int *max_channelsp)
2892 {
2893         unsigned int mode;
2894
2895         mode = ucontrol->value.enumerated.item[0];
2896         if (mode >= num_chmodes)
2897                 return -EINVAL;
2898         if (*max_channelsp == chmode[mode].channels)
2899                 return 0;
2900         /* change the current channel setting */
2901         *max_channelsp = chmode[mode].channels;
2902         if (chmode[mode].sequence)
2903                 snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
2904         return 1;
2905 }
2906 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_put);
2907
2908 /*
2909  * input MUX helper
2910  */
2911 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
2912                            struct snd_ctl_elem_info *uinfo)
2913 {
2914         unsigned int index;
2915
2916         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2917         uinfo->count = 1;
2918         uinfo->value.enumerated.items = imux->num_items;
2919         if (!imux->num_items)
2920                 return 0;
2921         index = uinfo->value.enumerated.item;
2922         if (index >= imux->num_items)
2923                 index = imux->num_items - 1;
2924         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
2925         return 0;
2926 }
2927 EXPORT_SYMBOL_HDA(snd_hda_input_mux_info);
2928
2929 int snd_hda_input_mux_put(struct hda_codec *codec,
2930                           const struct hda_input_mux *imux,
2931                           struct snd_ctl_elem_value *ucontrol,
2932                           hda_nid_t nid,
2933                           unsigned int *cur_val)
2934 {
2935         unsigned int idx;
2936
2937         if (!imux->num_items)
2938                 return 0;
2939         idx = ucontrol->value.enumerated.item[0];
2940         if (idx >= imux->num_items)
2941                 idx = imux->num_items - 1;
2942         if (*cur_val == idx)
2943                 return 0;
2944         snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
2945                                   imux->items[idx].index);
2946         *cur_val = idx;
2947         return 1;
2948 }
2949 EXPORT_SYMBOL_HDA(snd_hda_input_mux_put);
2950
2951
2952 /*
2953  * Multi-channel / digital-out PCM helper functions
2954  */
2955
2956 /* setup SPDIF output stream */
2957 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
2958                                  unsigned int stream_tag, unsigned int format)
2959 {
2960         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2961         if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
2962                 set_dig_out_convert(codec, nid,
2963                                     codec->spdif_ctls & ~AC_DIG1_ENABLE & 0xff,
2964                                     -1);
2965         snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
2966         if (codec->slave_dig_outs) {
2967                 hda_nid_t *d;
2968                 for (d = codec->slave_dig_outs; *d; d++)
2969                         snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
2970                                                    format);
2971         }
2972         /* turn on again (if needed) */
2973         if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
2974                 set_dig_out_convert(codec, nid,
2975                                     codec->spdif_ctls & 0xff, -1);
2976 }
2977
2978 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
2979 {
2980         snd_hda_codec_cleanup_stream(codec, nid);
2981         if (codec->slave_dig_outs) {
2982                 hda_nid_t *d;
2983                 for (d = codec->slave_dig_outs; *d; d++)
2984                         snd_hda_codec_cleanup_stream(codec, *d);
2985         }
2986 }
2987
2988 /*
2989  * open the digital out in the exclusive mode
2990  */
2991 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
2992                                struct hda_multi_out *mout)
2993 {
2994         mutex_lock(&codec->spdif_mutex);
2995         if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
2996                 /* already opened as analog dup; reset it once */
2997                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
2998         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
2999         mutex_unlock(&codec->spdif_mutex);
3000         return 0;
3001 }
3002 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_open);
3003
3004 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3005                                   struct hda_multi_out *mout,
3006                                   unsigned int stream_tag,
3007                                   unsigned int format,
3008                                   struct snd_pcm_substream *substream)
3009 {
3010         mutex_lock(&codec->spdif_mutex);
3011         setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3012         mutex_unlock(&codec->spdif_mutex);
3013         return 0;
3014 }
3015 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_prepare);
3016
3017 /*
3018  * release the digital out
3019  */
3020 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3021                                 struct hda_multi_out *mout)
3022 {
3023         mutex_lock(&codec->spdif_mutex);
3024         mout->dig_out_used = 0;
3025         mutex_unlock(&codec->spdif_mutex);
3026         return 0;
3027 }
3028 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_close);
3029
3030 /*
3031  * set up more restrictions for analog out
3032  */
3033 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3034                                   struct hda_multi_out *mout,
3035                                   struct snd_pcm_substream *substream,
3036                                   struct hda_pcm_stream *hinfo)
3037 {
3038         struct snd_pcm_runtime *runtime = substream->runtime;
3039         runtime->hw.channels_max = mout->max_channels;
3040         if (mout->dig_out_nid) {
3041                 if (!mout->analog_rates) {
3042                         mout->analog_rates = hinfo->rates;
3043                         mout->analog_formats = hinfo->formats;
3044                         mout->analog_maxbps = hinfo->maxbps;
3045                 } else {
3046                         runtime->hw.rates = mout->analog_rates;
3047                         runtime->hw.formats = mout->analog_formats;
3048                         hinfo->maxbps = mout->analog_maxbps;
3049                 }
3050                 if (!mout->spdif_rates) {
3051                         snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3052                                                     &mout->spdif_rates,
3053                                                     &mout->spdif_formats,
3054                                                     &mout->spdif_maxbps);
3055                 }
3056                 mutex_lock(&codec->spdif_mutex);
3057                 if (mout->share_spdif) {
3058                         runtime->hw.rates &= mout->spdif_rates;
3059                         runtime->hw.formats &= mout->spdif_formats;
3060                         if (mout->spdif_maxbps < hinfo->maxbps)
3061                                 hinfo->maxbps = mout->spdif_maxbps;
3062                 }
3063                 mutex_unlock(&codec->spdif_mutex);
3064         }
3065         return snd_pcm_hw_constraint_step(substream->runtime, 0,
3066                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3067 }
3068 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_open);
3069
3070 /*
3071  * set up the i/o for analog out
3072  * when the digital out is available, copy the front out to digital out, too.
3073  */
3074 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3075                                      struct hda_multi_out *mout,
3076                                      unsigned int stream_tag,
3077                                      unsigned int format,
3078                                      struct snd_pcm_substream *substream)
3079 {
3080         hda_nid_t *nids = mout->dac_nids;
3081         int chs = substream->runtime->channels;
3082         int i;
3083
3084         mutex_lock(&codec->spdif_mutex);
3085         if (mout->dig_out_nid && mout->share_spdif &&
3086             mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3087                 if (chs == 2 &&
3088                     snd_hda_is_supported_format(codec, mout->dig_out_nid,
3089                                                 format) &&
3090                     !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
3091                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3092                         setup_dig_out_stream(codec, mout->dig_out_nid,
3093                                              stream_tag, format);
3094                 } else {
3095                         mout->dig_out_used = 0;
3096                         cleanup_dig_out_stream(codec, mout->dig_out_nid);
3097                 }
3098         }
3099         mutex_unlock(&codec->spdif_mutex);
3100
3101         /* front */
3102         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3103                                    0, format);
3104         if (!mout->no_share_stream &&
3105             mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3106                 /* headphone out will just decode front left/right (stereo) */
3107                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3108                                            0, format);
3109         /* extra outputs copied from front */
3110         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3111                 if (!mout->no_share_stream && mout->extra_out_nid[i])
3112                         snd_hda_codec_setup_stream(codec,
3113                                                    mout->extra_out_nid[i],
3114                                                    stream_tag, 0, format);
3115
3116         /* surrounds */
3117         for (i = 1; i < mout->num_dacs; i++) {
3118                 if (chs >= (i + 1) * 2) /* independent out */
3119                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3120                                                    i * 2, format);
3121                 else if (!mout->no_share_stream) /* copy front */
3122                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3123                                                    0, format);
3124         }
3125         return 0;
3126 }
3127 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);
3128
3129 /*
3130  * clean up the setting for analog out
3131  */
3132 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3133                                      struct hda_multi_out *mout)
3134 {
3135         hda_nid_t *nids = mout->dac_nids;
3136         int i;
3137
3138         for (i = 0; i < mout->num_dacs; i++)
3139                 snd_hda_codec_cleanup_stream(codec, nids[i]);
3140         if (mout->hp_nid)
3141                 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3142         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3143                 if (mout->extra_out_nid[i])
3144                         snd_hda_codec_cleanup_stream(codec,
3145                                                      mout->extra_out_nid[i]);
3146         mutex_lock(&codec->spdif_mutex);
3147         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3148                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3149                 mout->dig_out_used = 0;
3150         }
3151         mutex_unlock(&codec->spdif_mutex);
3152         return 0;
3153 }
3154 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup);
3155
3156 /*
3157  * Helper for automatic pin configuration
3158  */
3159
3160 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
3161 {
3162         for (; *list; list++)
3163                 if (*list == nid)
3164                         return 1;
3165         return 0;
3166 }
3167
3168
3169 /*
3170  * Sort an associated group of pins according to their sequence numbers.
3171  */
3172 static void sort_pins_by_sequence(hda_nid_t * pins, short * sequences,
3173                                   int num_pins)
3174 {
3175         int i, j;
3176         short seq;
3177         hda_nid_t nid;
3178
3179         for (i = 0; i < num_pins; i++) {
3180                 for (j = i + 1; j < num_pins; j++) {
3181                         if (sequences[i] > sequences[j]) {
3182                                 seq = sequences[i];
3183                                 sequences[i] = sequences[j];
3184                                 sequences[j] = seq;
3185                                 nid = pins[i];
3186                                 pins[i] = pins[j];
3187                                 pins[j] = nid;
3188                         }
3189                 }
3190         }
3191 }
3192
3193
3194 /*
3195  * Parse all pin widgets and store the useful pin nids to cfg
3196  *
3197  * The number of line-outs or any primary output is stored in line_outs,
3198  * and the corresponding output pins are assigned to line_out_pins[],
3199  * in the order of front, rear, CLFE, side, ...
3200  *
3201  * If more extra outputs (speaker and headphone) are found, the pins are
3202  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
3203  * is detected, one of speaker of HP pins is assigned as the primary
3204  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
3205  * if any analog output exists.
3206  *
3207  * The analog input pins are assigned to input_pins array.
3208  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
3209  * respectively.
3210  */
3211 int snd_hda_parse_pin_def_config(struct hda_codec *codec,
3212                                  struct auto_pin_cfg *cfg,
3213                                  hda_nid_t *ignore_nids)
3214 {
3215         hda_nid_t nid, end_nid;
3216         short seq, assoc_line_out, assoc_speaker;
3217         short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
3218         short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
3219         short sequences_hp[ARRAY_SIZE(cfg->hp_pins)];
3220
3221         memset(cfg, 0, sizeof(*cfg));
3222
3223         memset(sequences_line_out, 0, sizeof(sequences_line_out));
3224         memset(sequences_speaker, 0, sizeof(sequences_speaker));
3225         memset(sequences_hp, 0, sizeof(sequences_hp));
3226         assoc_line_out = assoc_speaker = 0;
3227
3228         end_nid = codec->start_nid + codec->num_nodes;
3229         for (nid = codec->start_nid; nid < end_nid; nid++) {
3230                 unsigned int wid_caps = get_wcaps(codec, nid);
3231                 unsigned int wid_type =
3232                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
3233                 unsigned int def_conf;
3234                 short assoc, loc;
3235
3236                 /* read all default configuration for pin complex */
3237                 if (wid_type != AC_WID_PIN)
3238                         continue;
3239                 /* ignore the given nids (e.g. pc-beep returns error) */
3240                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
3241                         continue;
3242
3243                 def_conf = snd_hda_codec_read(codec, nid, 0,
3244                                               AC_VERB_GET_CONFIG_DEFAULT, 0);
3245                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
3246                         continue;
3247                 loc = get_defcfg_location(def_conf);
3248                 switch (get_defcfg_device(def_conf)) {
3249                 case AC_JACK_LINE_OUT:
3250                         seq = get_defcfg_sequence(def_conf);
3251                         assoc = get_defcfg_association(def_conf);
3252
3253                         if (!(wid_caps & AC_WCAP_STEREO))
3254                                 if (!cfg->mono_out_pin)
3255                                         cfg->mono_out_pin = nid;
3256                         if (!assoc)
3257                                 continue;
3258                         if (!assoc_line_out)
3259                                 assoc_line_out = assoc;
3260                         else if (assoc_line_out != assoc)
3261                                 continue;
3262                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
3263                                 continue;
3264                         cfg->line_out_pins[cfg->line_outs] = nid;
3265                         sequences_line_out[cfg->line_outs] = seq;
3266                         cfg->line_outs++;
3267                         break;
3268                 case AC_JACK_SPEAKER:
3269                         seq = get_defcfg_sequence(def_conf);
3270                         assoc = get_defcfg_association(def_conf);
3271                         if (! assoc)
3272                                 continue;
3273                         if (! assoc_speaker)
3274                                 assoc_speaker = assoc;
3275                         else if (assoc_speaker != assoc)
3276                                 continue;
3277                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
3278                                 continue;
3279                         cfg->speaker_pins[cfg->speaker_outs] = nid;
3280                         sequences_speaker[cfg->speaker_outs] = seq;
3281                         cfg->speaker_outs++;
3282                         break;
3283                 case AC_JACK_HP_OUT:
3284                         seq = get_defcfg_sequence(def_conf);
3285                         assoc = get_defcfg_association(def_conf);
3286                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
3287                                 continue;
3288                         cfg->hp_pins[cfg->hp_outs] = nid;
3289                         sequences_hp[cfg->hp_outs] = (assoc << 4) | seq;
3290                         cfg->hp_outs++;
3291                         break;
3292                 case AC_JACK_MIC_IN: {
3293                         int preferred, alt;
3294                         if (loc == AC_JACK_LOC_FRONT) {
3295                                 preferred = AUTO_PIN_FRONT_MIC;
3296                                 alt = AUTO_PIN_MIC;
3297                         } else {
3298                                 preferred = AUTO_PIN_MIC;
3299                                 alt = AUTO_PIN_FRONT_MIC;
3300                         }
3301                         if (!cfg->input_pins[preferred])
3302                                 cfg->input_pins[preferred] = nid;
3303                         else if (!cfg->input_pins[alt])
3304                                 cfg->input_pins[alt] = nid;
3305                         break;
3306                 }
3307                 case AC_JACK_LINE_IN:
3308                         if (loc == AC_JACK_LOC_FRONT)
3309                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
3310                         else
3311                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
3312                         break;
3313                 case AC_JACK_CD:
3314                         cfg->input_pins[AUTO_PIN_CD] = nid;
3315                         break;
3316                 case AC_JACK_AUX:
3317                         cfg->input_pins[AUTO_PIN_AUX] = nid;
3318                         break;
3319                 case AC_JACK_SPDIF_OUT:
3320                         cfg->dig_out_pin = nid;
3321                         break;
3322                 case AC_JACK_SPDIF_IN:
3323                         cfg->dig_in_pin = nid;
3324                         break;
3325                 }
3326         }
3327
3328         /* FIX-UP:
3329          * If no line-out is defined but multiple HPs are found,
3330          * some of them might be the real line-outs.
3331          */
3332         if (!cfg->line_outs && cfg->hp_outs > 1) {
3333                 int i = 0;
3334                 while (i < cfg->hp_outs) {
3335                         /* The real HPs should have the sequence 0x0f */
3336                         if ((sequences_hp[i] & 0x0f) == 0x0f) {
3337                                 i++;
3338                                 continue;
3339                         }
3340                         /* Move it to the line-out table */
3341                         cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i];
3342                         sequences_line_out[cfg->line_outs] = sequences_hp[i];
3343                         cfg->line_outs++;
3344                         cfg->hp_outs--;
3345                         memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
3346                                 sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
3347                         memmove(sequences_hp + i - 1, sequences_hp + i,
3348                                 sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
3349                 }
3350         }
3351
3352         /* sort by sequence */
3353         sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
3354                               cfg->line_outs);
3355         sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
3356                               cfg->speaker_outs);
3357         sort_pins_by_sequence(cfg->hp_pins, sequences_hp,
3358                               cfg->hp_outs);
3359
3360         /* if we have only one mic, make it AUTO_PIN_MIC */
3361         if (!cfg->input_pins[AUTO_PIN_MIC] &&
3362             cfg->input_pins[AUTO_PIN_FRONT_MIC]) {
3363                 cfg->input_pins[AUTO_PIN_MIC] =
3364                         cfg->input_pins[AUTO_PIN_FRONT_MIC];
3365                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = 0;
3366         }
3367         /* ditto for line-in */
3368         if (!cfg->input_pins[AUTO_PIN_LINE] &&
3369             cfg->input_pins[AUTO_PIN_FRONT_LINE]) {
3370                 cfg->input_pins[AUTO_PIN_LINE] =
3371                         cfg->input_pins[AUTO_PIN_FRONT_LINE];
3372                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = 0;
3373         }
3374
3375         /*
3376          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
3377          * as a primary output
3378          */
3379         if (!cfg->line_outs) {
3380                 if (cfg->speaker_outs) {
3381                         cfg->line_outs = cfg->speaker_outs;
3382                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
3383                                sizeof(cfg->speaker_pins));
3384                         cfg->speaker_outs = 0;
3385                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
3386                         cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
3387                 } else if (cfg->hp_outs) {
3388                         cfg->line_outs = cfg->hp_outs;
3389                         memcpy(cfg->line_out_pins, cfg->hp_pins,
3390                                sizeof(cfg->hp_pins));
3391                         cfg->hp_outs = 0;
3392                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
3393                         cfg->line_out_type = AUTO_PIN_HP_OUT;
3394                 }
3395         }
3396
3397         /* Reorder the surround channels
3398          * ALSA sequence is front/surr/clfe/side
3399          * HDA sequence is:
3400          *    4-ch: front/surr  =>  OK as it is
3401          *    6-ch: front/clfe/surr
3402          *    8-ch: front/clfe/rear/side|fc
3403          */
3404         switch (cfg->line_outs) {
3405         case 3:
3406         case 4:
3407                 nid = cfg->line_out_pins[1];
3408                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
3409                 cfg->line_out_pins[2] = nid;
3410                 break;
3411         }
3412
3413         /*
3414          * debug prints of the parsed results
3415          */
3416         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3417                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
3418                    cfg->line_out_pins[2], cfg->line_out_pins[3],
3419                    cfg->line_out_pins[4]);
3420         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3421                    cfg->speaker_outs, cfg->speaker_pins[0],
3422                    cfg->speaker_pins[1], cfg->speaker_pins[2],
3423                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
3424         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3425                    cfg->hp_outs, cfg->hp_pins[0],
3426                    cfg->hp_pins[1], cfg->hp_pins[2],
3427                    cfg->hp_pins[3], cfg->hp_pins[4]);
3428         snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
3429         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
3430                    " cd=0x%x, aux=0x%x\n",
3431                    cfg->input_pins[AUTO_PIN_MIC],
3432                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
3433                    cfg->input_pins[AUTO_PIN_LINE],
3434                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
3435                    cfg->input_pins[AUTO_PIN_CD],
3436                    cfg->input_pins[AUTO_PIN_AUX]);
3437
3438         return 0;
3439 }
3440 EXPORT_SYMBOL_HDA(snd_hda_parse_pin_def_config);
3441
3442 /* labels for input pins */
3443 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
3444         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
3445 };
3446 EXPORT_SYMBOL_HDA(auto_pin_cfg_labels);
3447
3448
3449 #ifdef CONFIG_PM
3450 /*
3451  * power management
3452  */
3453
3454 /**
3455  * snd_hda_suspend - suspend the codecs
3456  * @bus: the HDA bus
3457  * @state: suspsend state
3458  *
3459  * Returns 0 if successful.
3460  */
3461 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
3462 {
3463         struct hda_codec *codec;
3464
3465         list_for_each_entry(codec, &bus->codec_list, list) {
3466 #ifdef CONFIG_SND_HDA_POWER_SAVE
3467                 if (!codec->power_on)
3468                         continue;
3469 #endif
3470                 hda_call_codec_suspend(codec);
3471         }
3472         return 0;
3473 }
3474 EXPORT_SYMBOL_HDA(snd_hda_suspend);
3475
3476 /**
3477  * snd_hda_resume - resume the codecs
3478  * @bus: the HDA bus
3479  *
3480  * Returns 0 if successful.
3481  *
3482  * This fucntion is defined only when POWER_SAVE isn't set.
3483  * In the power-save mode, the codec is resumed dynamically.
3484  */
3485 int snd_hda_resume(struct hda_bus *bus)
3486 {
3487         struct hda_codec *codec;
3488
3489         list_for_each_entry(codec, &bus->codec_list, list) {
3490                 if (snd_hda_codec_needs_resume(codec))
3491                         hda_call_codec_resume(codec);
3492         }
3493         return 0;
3494 }
3495 EXPORT_SYMBOL_HDA(snd_hda_resume);
3496 #endif /* CONFIG_PM */
3497
3498 /*
3499  * generic arrays
3500  */
3501
3502 /* get a new element from the given array
3503  * if it exceeds the pre-allocated array size, re-allocate the array
3504  */
3505 void *snd_array_new(struct snd_array *array)
3506 {
3507         if (array->used >= array->alloced) {
3508                 int num = array->alloced + array->alloc_align;
3509                 void *nlist;
3510                 if (snd_BUG_ON(num >= 4096))
3511                         return NULL;
3512                 nlist = kcalloc(num + 1, array->elem_size, GFP_KERNEL);
3513                 if (!nlist)
3514                         return NULL;
3515                 if (array->list) {
3516                         memcpy(nlist, array->list,
3517                                array->elem_size * array->alloced);
3518                         kfree(array->list);
3519                 }
3520                 array->list = nlist;
3521                 array->alloced = num;
3522         }
3523         return snd_array_elem(array, array->used++);
3524 }
3525 EXPORT_SYMBOL_HDA(snd_array_new);
3526
3527 /* free the given array elements */
3528 void snd_array_free(struct snd_array *array)
3529 {
3530         kfree(array->list);
3531         array->used = 0;
3532         array->alloced = 0;
3533         array->list = NULL;
3534 }
3535 EXPORT_SYMBOL_HDA(snd_array_free);
3536
3537 /*
3538  * used by hda_proc.c and hda_eld.c
3539  */
3540 void snd_print_pcm_rates(int pcm, char *buf, int buflen)
3541 {
3542         static unsigned int rates[] = {
3543                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
3544                 96000, 176400, 192000, 384000
3545         };
3546         int i, j;
3547
3548         for (i = 0, j = 0; i < ARRAY_SIZE(rates); i++)
3549                 if (pcm & (1 << i))
3550                         j += snprintf(buf + j, buflen - j,  " %d", rates[i]);
3551
3552         buf[j] = '\0'; /* necessary when j == 0 */
3553 }
3554 EXPORT_SYMBOL_HDA(snd_print_pcm_rates);
3555
3556 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3557 {
3558         static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3559         int i, j;
3560
3561         for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3562                 if (pcm & (AC_SUPPCM_BITS_8 << i))
3563                         j += snprintf(buf + j, buflen - j,  " %d", bits[i]);
3564
3565         buf[j] = '\0'; /* necessary when j == 0 */
3566 }
3567 EXPORT_SYMBOL_HDA(snd_print_pcm_bits);
3568
3569 MODULE_DESCRIPTION("HDA codec core");
3570 MODULE_LICENSE("GPL");