SAFE public projects git trees. - safe/jmp/linux-2.6/blob - sound/pci/hda/hda_codec.c

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   5  *
   6  *
   7  *  This driver is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This driver is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  */
  21
  22 #include <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         mutex_init(&codec->control_mutex);
 739         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
 740         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
 741         snd_array_init(&codec->mixers, sizeof(struct snd_kcontrol *), 32);
 742         if (codec->bus->modelname) {
 743                 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
 744                 if (!codec->modelname) {
 745                         snd_hda_codec_free(codec);
 746                         return -ENODEV;
 747                 }
 748         }
 749
 750 #ifdef CONFIG_SND_HDA_POWER_SAVE
 751         INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
 752         /* snd_hda_codec_new() marks the codec as power-up, and leave it as is.
 753          * the caller has to power down appropriatley after initialization
 754          * phase.
 755          */
 756         hda_keep_power_on(codec);
 757 #endif
 758
 759         list_add_tail(&codec->list, &bus->codec_list);
 760         bus->caddr_tbl[codec_addr] = codec;
 761
 762         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 763                                               AC_PAR_VENDOR_ID);
 764         if (codec->vendor_id == -1)
 765                 /* read again, hopefully the access method was corrected
 766                  * in the last read...
 767                  */
 768                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 769                                                       AC_PAR_VENDOR_ID);
 770         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 771                                                  AC_PAR_SUBSYSTEM_ID);
 772         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 773                                                 AC_PAR_REV_ID);
 774
 775         setup_fg_nodes(codec);
 776         if (!codec->afg && !codec->mfg) {
 777                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 778                 snd_hda_codec_free(codec);
 779                 return -ENODEV;
 780         }
 781
 782         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 783                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 784                 snd_hda_codec_free(codec);
 785                 return -ENOMEM;
 786         }
 787
 788         if (!codec->subsystem_id) {
 789                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 790                 codec->subsystem_id =
 791                         snd_hda_codec_read(codec, nid, 0,
 792                                            AC_VERB_GET_SUBSYSTEM_ID, 0);
 793         }
 794         if (bus->modelname)
 795                 codec->modelname = kstrdup(bus->modelname, GFP_KERNEL);
 796
 797         if (do_init) {
 798                 err = snd_hda_codec_configure(codec);
 799                 if (err < 0) {
 800                         snd_hda_codec_free(codec);
 801                         return err;
 802                 }
 803         }
 804         snd_hda_codec_proc_new(codec);
 805
 806         snd_hda_create_hwdep(codec);
 807
 808         sprintf(component, "HDA:%08x,%08x,%08x", codec->vendor_id,
 809                 codec->subsystem_id, codec->revision_id);
 810         snd_component_add(codec->bus->card, component);
 811
 812         if (codecp)
 813                 *codecp = codec;
 814         return 0;
 815 }
 816 EXPORT_SYMBOL_HDA(snd_hda_codec_new);
 817
 818 int snd_hda_codec_configure(struct hda_codec *codec)
 819 {
 820         int err;
 821
 822         codec->preset = find_codec_preset(codec);
 823         if (!codec->name) {
 824                 err = get_codec_name(codec);
 825                 if (err < 0)
 826                         return err;
 827         }
 828         /* audio codec should override the mixer name */
 829         if (codec->afg || !*codec->bus->card->mixername)
 830                 strlcpy(codec->bus->card->mixername, codec->name,
 831                         sizeof(codec->bus->card->mixername));
 832
 833         if (is_generic_config(codec)) {
 834                 err = snd_hda_parse_generic_codec(codec);
 835                 goto patched;
 836         }
 837         if (codec->preset && codec->preset->patch) {
 838                 err = codec->preset->patch(codec);
 839                 goto patched;
 840         }
 841
 842         /* call the default parser */
 843         err = snd_hda_parse_generic_codec(codec);
 844         if (err < 0)
 845                 printk(KERN_ERR "hda-codec: No codec parser is available\n");
 846
 847  patched:
 848         if (!err && codec->patch_ops.unsol_event)
 849                 err = init_unsol_queue(codec->bus);
 850         return err;
 851 }
 852
 853 /**
 854  * snd_hda_codec_setup_stream - set up the codec for streaming
 855  * @codec: the CODEC to set up
 856  * @nid: the NID to set up
 857  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 858  * @channel_id: channel id to pass, zero based.
 859  * @format: stream format.
 860  */
 861 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 862                                 u32 stream_tag,
 863                                 int channel_id, int format)
 864 {
 865         if (!nid)
 866                 return;
 867
 868         snd_printdd("hda_codec_setup_stream: "
 869                     "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 870                     nid, stream_tag, channel_id, format);
 871         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 872                             (stream_tag << 4) | channel_id);
 873         msleep(1);
 874         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 875 }
 876 EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
 877
 878 void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
 879 {
 880         if (!nid)
 881                 return;
 882
 883         snd_printdd("hda_codec_cleanup_stream: NID=0x%x\n", nid);
 884         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
 885 #if 0 /* keep the format */
 886         msleep(1);
 887         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0);
 888 #endif
 889 }
 890 EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
 891
 892 /*
 893  * amp access functions
 894  */
 895
 896 /* FIXME: more better hash key? */
 897 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 898 #define INFO_AMP_CAPS   (1<<0)
 899 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 900
 901 /* initialize the hash table */
 902 static void /*__devinit*/ init_hda_cache(struct hda_cache_rec *cache,
 903                                      unsigned int record_size)
 904 {
 905         memset(cache, 0, sizeof(*cache));
 906         memset(cache->hash, 0xff, sizeof(cache->hash));
 907         snd_array_init(&cache->buf, record_size, 64);
 908 }
 909
 910 static void free_hda_cache(struct hda_cache_rec *cache)
 911 {
 912         snd_array_free(&cache->buf);
 913 }
 914
 915 /* query the hash.  allocate an entry if not found. */
 916 static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
 917                                               u32 key)
 918 {
 919         u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
 920         u16 cur = cache->hash[idx];
 921         struct hda_cache_head *info;
 922
 923         while (cur != 0xffff) {
 924                 info = snd_array_elem(&cache->buf, cur);
 925                 if (info->key == key)
 926                         return info;
 927                 cur = info->next;
 928         }
 929
 930         /* add a new hash entry */
 931         info = snd_array_new(&cache->buf);
 932         if (!info)
 933                 return NULL;
 934         cur = snd_array_index(&cache->buf, info);
 935         info->key = key;
 936         info->val = 0;
 937         info->next = cache->hash[idx];
 938         cache->hash[idx] = cur;
 939
 940         return info;
 941 }
 942
 943 /* query and allocate an amp hash entry */
 944 static inline struct hda_amp_info *
 945 get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 946 {
 947         return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
 948 }
 949
 950 /*
 951  * query AMP capabilities for the given widget and direction
 952  */
 953 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 954 {
 955         struct hda_amp_info *info;
 956
 957         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 958         if (!info)
 959                 return 0;
 960         if (!(info->head.val & INFO_AMP_CAPS)) {
 961                 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 962                         nid = codec->afg;
 963                 info->amp_caps = snd_hda_param_read(codec, nid,
 964                                                     direction == HDA_OUTPUT ?
 965                                                     AC_PAR_AMP_OUT_CAP :
 966                                                     AC_PAR_AMP_IN_CAP);
 967                 if (info->amp_caps)
 968                         info->head.val |= INFO_AMP_CAPS;
 969         }
 970         return info->amp_caps;
 971 }
 972 EXPORT_SYMBOL_HDA(query_amp_caps);
 973
 974 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 975                               unsigned int caps)
 976 {
 977         struct hda_amp_info *info;
 978
 979         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0));
 980         if (!info)
 981                 return -EINVAL;
 982         info->amp_caps = caps;
 983         info->head.val |= INFO_AMP_CAPS;
 984         return 0;
 985 }
 986 EXPORT_SYMBOL_HDA(snd_hda_override_amp_caps);
 987
 988 /*
 989  * read the current volume to info
 990  * if the cache exists, read the cache value.
 991  */
 992 static unsigned int get_vol_mute(struct hda_codec *codec,
 993                                  struct hda_amp_info *info, hda_nid_t nid,
 994                                  int ch, int direction, int index)
 995 {
 996         u32 val, parm;
 997
 998         if (info->head.val & INFO_AMP_VOL(ch))
 999                 return info->vol[ch];
1000
1001         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
1002         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
1003         parm |= index;
1004         val = snd_hda_codec_read(codec, nid, 0,
1005                                  AC_VERB_GET_AMP_GAIN_MUTE, parm);
1006         info->vol[ch] = val & 0xff;
1007         info->head.val |= INFO_AMP_VOL(ch);
1008         return info->vol[ch];
1009 }
1010
1011 /*
1012  * write the current volume in info to the h/w and update the cache
1013  */
1014 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
1015                          hda_nid_t nid, int ch, int direction, int index,
1016                          int val)
1017 {
1018         u32 parm;
1019
1020         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
1021         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
1022         parm |= index << AC_AMP_SET_INDEX_SHIFT;
1023         parm |= val;
1024         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
1025         info->vol[ch] = val;
1026 }
1027
1028 /*
1029  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
1030  */
1031 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
1032                            int direction, int index)
1033 {
1034         struct hda_amp_info *info;
1035         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
1036         if (!info)
1037                 return 0;
1038         return get_vol_mute(codec, info, nid, ch, direction, index);
1039 }
1040 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_read);
1041
1042 /*
1043  * update the AMP value, mask = bit mask to set, val = the value
1044  */
1045 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
1046                              int direction, int idx, int mask, int val)
1047 {
1048         struct hda_amp_info *info;
1049
1050         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
1051         if (!info)
1052                 return 0;
1053         val &= mask;
1054         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
1055         if (info->vol[ch] == val)
1056                 return 0;
1057         put_vol_mute(codec, info, nid, ch, direction, idx, val);
1058         return 1;
1059 }
1060 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_update);
1061
1062 /*
1063  * update the AMP stereo with the same mask and value
1064  */
1065 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1066                              int direction, int idx, int mask, int val)
1067 {
1068         int ch, ret = 0;
1069         for (ch = 0; ch < 2; ch++)
1070                 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1071                                                 idx, mask, val);
1072         return ret;
1073 }
1074 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_stereo);
1075
1076 #ifdef SND_HDA_NEEDS_RESUME
1077 /* resume the all amp commands from the cache */
1078 void snd_hda_codec_resume_amp(struct hda_codec *codec)
1079 {
1080         struct hda_amp_info *buffer = codec->amp_cache.buf.list;
1081         int i;
1082
1083         for (i = 0; i < codec->amp_cache.buf.used; i++, buffer++) {
1084                 u32 key = buffer->head.key;
1085                 hda_nid_t nid;
1086                 unsigned int idx, dir, ch;
1087                 if (!key)
1088                         continue;
1089                 nid = key & 0xff;
1090                 idx = (key >> 16) & 0xff;
1091                 dir = (key >> 24) & 0xff;
1092                 for (ch = 0; ch < 2; ch++) {
1093                         if (!(buffer->head.val & INFO_AMP_VOL(ch)))
1094                                 continue;
1095                         put_vol_mute(codec, buffer, nid, ch, dir, idx,
1096                                      buffer->vol[ch]);
1097                 }
1098         }
1099 }
1100 EXPORT_SYMBOL_HDA(snd_hda_codec_resume_amp);
1101 #endif /* SND_HDA_NEEDS_RESUME */
1102
1103 /* volume */
1104 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1105                                   struct snd_ctl_elem_info *uinfo)
1106 {
1107         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1108         u16 nid = get_amp_nid(kcontrol);
1109         u8 chs = get_amp_channels(kcontrol);
1110         int dir = get_amp_direction(kcontrol);
1111         u32 caps;
1112
1113         caps = query_amp_caps(codec, nid, dir);
1114         /* num steps */
1115         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1116         if (!caps) {
1117                 printk(KERN_WARNING "hda_codec: "
1118                        "num_steps = 0 for NID=0x%x (ctl = %s)\n", nid,
1119                        kcontrol->id.name);
1120                 return -EINVAL;
1121         }
1122         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1123         uinfo->count = chs == 3 ? 2 : 1;
1124         uinfo->value.integer.min = 0;
1125         uinfo->value.integer.max = caps;
1126         return 0;
1127 }
1128 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_info);
1129
1130 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1131                                  struct snd_ctl_elem_value *ucontrol)
1132 {
1133         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1134         hda_nid_t nid = get_amp_nid(kcontrol);
1135         int chs = get_amp_channels(kcontrol);
1136         int dir = get_amp_direction(kcontrol);
1137         int idx = get_amp_index(kcontrol);
1138         long *valp = ucontrol->value.integer.value;
1139
1140         if (chs & 1)
1141                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx)
1142                         & HDA_AMP_VOLMASK;
1143         if (chs & 2)
1144                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx)
1145                         & HDA_AMP_VOLMASK;
1146         return 0;
1147 }
1148 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_get);
1149
1150 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1151                                  struct snd_ctl_elem_value *ucontrol)
1152 {
1153         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1154         hda_nid_t nid = get_amp_nid(kcontrol);
1155         int chs = get_amp_channels(kcontrol);
1156         int dir = get_amp_direction(kcontrol);
1157         int idx = get_amp_index(kcontrol);
1158         long *valp = ucontrol->value.integer.value;
1159         int change = 0;
1160
1161         snd_hda_power_up(codec);
1162         if (chs & 1) {
1163                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1164                                                   0x7f, *valp);
1165                 valp++;
1166         }
1167         if (chs & 2)
1168                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1169                                                    0x7f, *valp);
1170         snd_hda_power_down(codec);
1171         return change;
1172 }
1173 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_put);
1174
1175 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1176                           unsigned int size, unsigned int __user *_tlv)
1177 {
1178         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1179         hda_nid_t nid = get_amp_nid(kcontrol);
1180         int dir = get_amp_direction(kcontrol);
1181         u32 caps, val1, val2;
1182
1183         if (size < 4 * sizeof(unsigned int))
1184                 return -ENOMEM;
1185         caps = query_amp_caps(codec, nid, dir);
1186         val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1187         val2 = (val2 + 1) * 25;
1188         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1189         val1 = ((int)val1) * ((int)val2);
1190         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
1191                 return -EFAULT;
1192         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
1193                 return -EFAULT;
1194         if (put_user(val1, _tlv + 2))
1195                 return -EFAULT;
1196         if (put_user(val2, _tlv + 3))
1197                 return -EFAULT;
1198         return 0;
1199 }
1200 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_tlv);
1201
1202 /*
1203  * set (static) TLV for virtual master volume; recalculated as max 0dB
1204  */
1205 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1206                              unsigned int *tlv)
1207 {
1208         u32 caps;
1209         int nums, step;
1210
1211         caps = query_amp_caps(codec, nid, dir);
1212         nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1213         step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1214         step = (step + 1) * 25;
1215         tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
1216         tlv[1] = 2 * sizeof(unsigned int);
1217         tlv[2] = -nums * step;
1218         tlv[3] = step;
1219 }
1220 EXPORT_SYMBOL_HDA(snd_hda_set_vmaster_tlv);
1221
1222 /* find a mixer control element with the given name */
1223 static struct snd_kcontrol *
1224 _snd_hda_find_mixer_ctl(struct hda_codec *codec,
1225                         const char *name, int idx)
1226 {
1227         struct snd_ctl_elem_id id;
1228         memset(&id, 0, sizeof(id));
1229         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1230         id.index = idx;
1231         strcpy(id.name, name);
1232         return snd_ctl_find_id(codec->bus->card, &id);
1233 }
1234
1235 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1236                                             const char *name)
1237 {
1238         return _snd_hda_find_mixer_ctl(codec, name, 0);
1239 }
1240 EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl);
1241
1242 /* Add a control element and assign to the codec */
1243 int snd_hda_ctl_add(struct hda_codec *codec, struct snd_kcontrol *kctl)
1244 {
1245         int err;
1246         struct snd_kcontrol **knewp;
1247
1248         err = snd_ctl_add(codec->bus->card, kctl);
1249         if (err < 0)
1250                 return err;
1251         knewp = snd_array_new(&codec->mixers);
1252         if (!knewp)
1253                 return -ENOMEM;
1254         *knewp = kctl;
1255         return 0;
1256 }
1257 EXPORT_SYMBOL_HDA(snd_hda_ctl_add);
1258
1259 #ifdef CONFIG_SND_HDA_RECONFIG
1260 /* Clear all controls assigned to the given codec */
1261 void snd_hda_ctls_clear(struct hda_codec *codec)
1262 {
1263         int i;
1264         struct snd_kcontrol **kctls = codec->mixers.list;
1265         for (i = 0; i < codec->mixers.used; i++)
1266                 snd_ctl_remove(codec->bus->card, kctls[i]);
1267         snd_array_free(&codec->mixers);
1268 }
1269
1270 void snd_hda_codec_reset(struct hda_codec *codec)
1271 {
1272         int i;
1273
1274 #ifdef CONFIG_SND_HDA_POWER_SAVE
1275         cancel_delayed_work(&codec->power_work);
1276         flush_scheduled_work();
1277 #endif
1278         snd_hda_ctls_clear(codec);
1279         /* relase PCMs */
1280         for (i = 0; i < codec->num_pcms; i++) {
1281                 if (codec->pcm_info[i].pcm) {
1282                         snd_device_free(codec->bus->card,
1283                                         codec->pcm_info[i].pcm);
1284                         clear_bit(codec->pcm_info[i].device,
1285                                   codec->bus->pcm_dev_bits);
1286                 }
1287         }
1288         if (codec->patch_ops.free)
1289                 codec->patch_ops.free(codec);
1290         codec->proc_widget_hook = NULL;
1291         codec->spec = NULL;
1292         free_hda_cache(&codec->amp_cache);
1293         free_hda_cache(&codec->cmd_cache);
1294         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
1295         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
1296         codec->num_pcms = 0;
1297         codec->pcm_info = NULL;
1298         codec->preset = NULL;
1299         module_put(codec->owner);
1300         codec->owner = NULL;
1301 }
1302 #endif /* CONFIG_SND_HDA_RECONFIG */
1303
1304 /* create a virtual master control and add slaves */
1305 int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1306                         unsigned int *tlv, const char **slaves)
1307 {
1308         struct snd_kcontrol *kctl;
1309         const char **s;
1310         int err;
1311
1312         for (s = slaves; *s && !snd_hda_find_mixer_ctl(codec, *s); s++)
1313                 ;
1314         if (!*s) {
1315                 snd_printdd("No slave found for %s\n", name);
1316                 return 0;
1317         }
1318         kctl = snd_ctl_make_virtual_master(name, tlv);
1319         if (!kctl)
1320                 return -ENOMEM;
1321         err = snd_hda_ctl_add(codec, kctl);
1322         if (err < 0)
1323                 return err;
1324
1325         for (s = slaves; *s; s++) {
1326                 struct snd_kcontrol *sctl;
1327
1328                 sctl = snd_hda_find_mixer_ctl(codec, *s);
1329                 if (!sctl) {
1330                         snd_printdd("Cannot find slave %s, skipped\n", *s);
1331                         continue;
1332                 }
1333                 err = snd_ctl_add_slave(kctl, sctl);
1334                 if (err < 0)
1335                         return err;
1336         }
1337         return 0;
1338 }
1339 EXPORT_SYMBOL_HDA(snd_hda_add_vmaster);
1340
1341 /* switch */
1342 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
1343                                   struct snd_ctl_elem_info *uinfo)
1344 {
1345         int chs = get_amp_channels(kcontrol);
1346
1347         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1348         uinfo->count = chs == 3 ? 2 : 1;
1349         uinfo->value.integer.min = 0;
1350         uinfo->value.integer.max = 1;
1351         return 0;
1352 }
1353 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_info);
1354
1355 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
1356                                  struct snd_ctl_elem_value *ucontrol)
1357 {
1358         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1359         hda_nid_t nid = get_amp_nid(kcontrol);
1360         int chs = get_amp_channels(kcontrol);
1361         int dir = get_amp_direction(kcontrol);
1362         int idx = get_amp_index(kcontrol);
1363         long *valp = ucontrol->value.integer.value;
1364
1365         if (chs & 1)
1366                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
1367                            HDA_AMP_MUTE) ? 0 : 1;
1368         if (chs & 2)
1369                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
1370                          HDA_AMP_MUTE) ? 0 : 1;
1371         return 0;
1372 }
1373 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_get);
1374
1375 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
1376                                  struct snd_ctl_elem_value *ucontrol)
1377 {
1378         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1379         hda_nid_t nid = get_amp_nid(kcontrol);
1380         int chs = get_amp_channels(kcontrol);
1381         int dir = get_amp_direction(kcontrol);
1382         int idx = get_amp_index(kcontrol);
1383         long *valp = ucontrol->value.integer.value;
1384         int change = 0;
1385
1386         snd_hda_power_up(codec);
1387         if (chs & 1) {
1388                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1389                                                   HDA_AMP_MUTE,
1390                                                   *valp ? 0 : HDA_AMP_MUTE);
1391                 valp++;
1392         }
1393         if (chs & 2)
1394                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1395                                                    HDA_AMP_MUTE,
1396                                                    *valp ? 0 : HDA_AMP_MUTE);
1397 #ifdef CONFIG_SND_HDA_POWER_SAVE
1398         if (codec->patch_ops.check_power_status)
1399                 codec->patch_ops.check_power_status(codec, nid);
1400 #endif
1401         snd_hda_power_down(codec);
1402         return change;
1403 }
1404 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_put);
1405
1406 /*
1407  * bound volume controls
1408  *
1409  * bind multiple volumes (# indices, from 0)
1410  */
1411
1412 #define AMP_VAL_IDX_SHIFT       19
1413 #define AMP_VAL_IDX_MASK        (0x0f<<19)
1414
1415 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
1416                                   struct snd_ctl_elem_value *ucontrol)
1417 {
1418         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1419         unsigned long pval;
1420         int err;
1421
1422         mutex_lock(&codec->control_mutex);
1423         pval = kcontrol->private_value;
1424         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
1425         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
1426         kcontrol->private_value = pval;
1427         mutex_unlock(&codec->control_mutex);
1428         return err;
1429 }
1430 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_get);
1431
1432 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
1433                                   struct snd_ctl_elem_value *ucontrol)
1434 {
1435         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1436         unsigned long pval;
1437         int i, indices, err = 0, change = 0;
1438
1439         mutex_lock(&codec->control_mutex);
1440         pval = kcontrol->private_value;
1441         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
1442         for (i = 0; i < indices; i++) {
1443                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
1444                         (i << AMP_VAL_IDX_SHIFT);
1445                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
1446                 if (err < 0)
1447                         break;
1448                 change |= err;
1449         }
1450         kcontrol->private_value = pval;
1451         mutex_unlock(&codec->control_mutex);
1452         return err < 0 ? err : change;
1453 }
1454 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_put);
1455
1456 /*
1457  * generic bound volume/swtich controls
1458  */
1459 int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
1460                                  struct snd_ctl_elem_info *uinfo)
1461 {
1462         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1463         struct hda_bind_ctls *c;
1464         int err;
1465
1466         mutex_lock(&codec->control_mutex);
1467         c = (struct hda_bind_ctls *)kcontrol->private_value;
1468         kcontrol->private_value = *c->values;
1469         err = c->ops->info(kcontrol, uinfo);
1470         kcontrol->private_value = (long)c;
1471         mutex_unlock(&codec->control_mutex);
1472         return err;
1473 }
1474 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_info);
1475
1476 int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
1477                                 struct snd_ctl_elem_value *ucontrol)
1478 {
1479         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1480         struct hda_bind_ctls *c;
1481         int err;
1482
1483         mutex_lock(&codec->control_mutex);
1484         c = (struct hda_bind_ctls *)kcontrol->private_value;
1485         kcontrol->private_value = *c->values;
1486         err = c->ops->get(kcontrol, ucontrol);
1487         kcontrol->private_value = (long)c;
1488         mutex_unlock(&codec->control_mutex);
1489         return err;
1490 }
1491 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_get);
1492
1493 int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
1494                                 struct snd_ctl_elem_value *ucontrol)
1495 {
1496         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1497         struct hda_bind_ctls *c;
1498         unsigned long *vals;
1499         int err = 0, change = 0;
1500
1501         mutex_lock(&codec->control_mutex);
1502         c = (struct hda_bind_ctls *)kcontrol->private_value;
1503         for (vals = c->values; *vals; vals++) {
1504                 kcontrol->private_value = *vals;
1505                 err = c->ops->put(kcontrol, ucontrol);
1506                 if (err < 0)
1507                         break;
1508                 change |= err;
1509         }
1510         kcontrol->private_value = (long)c;
1511         mutex_unlock(&codec->control_mutex);
1512         return err < 0 ? err : change;
1513 }
1514 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_put);
1515
1516 int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1517                            unsigned int size, unsigned int __user *tlv)
1518 {
1519         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1520         struct hda_bind_ctls *c;
1521         int err;
1522
1523         mutex_lock(&codec->control_mutex);
1524         c = (struct hda_bind_ctls *)kcontrol->private_value;
1525         kcontrol->private_value = *c->values;
1526         err = c->ops->tlv(kcontrol, op_flag, size, tlv);
1527         kcontrol->private_value = (long)c;
1528         mutex_unlock(&codec->control_mutex);
1529         return err;
1530 }
1531 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_tlv);
1532
1533 struct hda_ctl_ops snd_hda_bind_vol = {
1534         .info = snd_hda_mixer_amp_volume_info,
1535         .get = snd_hda_mixer_amp_volume_get,
1536         .put = snd_hda_mixer_amp_volume_put,
1537         .tlv = snd_hda_mixer_amp_tlv
1538 };
1539 EXPORT_SYMBOL_HDA(snd_hda_bind_vol);
1540
1541 struct hda_ctl_ops snd_hda_bind_sw = {
1542         .info = snd_hda_mixer_amp_switch_info,
1543         .get = snd_hda_mixer_amp_switch_get,
1544         .put = snd_hda_mixer_amp_switch_put,
1545         .tlv = snd_hda_mixer_amp_tlv
1546 };
1547 EXPORT_SYMBOL_HDA(snd_hda_bind_sw);
1548
1549 /*
1550  * SPDIF out controls
1551  */
1552
1553 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
1554                                    struct snd_ctl_elem_info *uinfo)
1555 {
1556         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1557         uinfo->count = 1;
1558         return 0;
1559 }
1560
1561 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
1562                                    struct snd_ctl_elem_value *ucontrol)
1563 {
1564         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1565                                            IEC958_AES0_NONAUDIO |
1566                                            IEC958_AES0_CON_EMPHASIS_5015 |
1567                                            IEC958_AES0_CON_NOT_COPYRIGHT;
1568         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
1569                                            IEC958_AES1_CON_ORIGINAL;
1570         return 0;
1571 }
1572
1573 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
1574                                    struct snd_ctl_elem_value *ucontrol)
1575 {
1576         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1577                                            IEC958_AES0_NONAUDIO |
1578                                            IEC958_AES0_PRO_EMPHASIS_5015;
1579         return 0;
1580 }
1581
1582 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
1583                                      struct snd_ctl_elem_value *ucontrol)
1584 {
1585         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1586
1587         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1588         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1589         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1590         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1591
1592         return 0;
1593 }
1594
1595 /* convert from SPDIF status bits to HDA SPDIF bits
1596  * bit 0 (DigEn) is always set zero (to be filled later)
1597  */
1598 static unsigned short convert_from_spdif_status(unsigned int sbits)
1599 {
1600         unsigned short val = 0;
1601
1602         if (sbits & IEC958_AES0_PROFESSIONAL)
1603                 val |= AC_DIG1_PROFESSIONAL;
1604         if (sbits & IEC958_AES0_NONAUDIO)
1605                 val |= AC_DIG1_NONAUDIO;
1606         if (sbits & IEC958_AES0_PROFESSIONAL) {
1607                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
1608                     IEC958_AES0_PRO_EMPHASIS_5015)
1609                         val |= AC_DIG1_EMPHASIS;
1610         } else {
1611                 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
1612                     IEC958_AES0_CON_EMPHASIS_5015)
1613                         val |= AC_DIG1_EMPHASIS;
1614                 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1615                         val |= AC_DIG1_COPYRIGHT;
1616                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1617                         val |= AC_DIG1_LEVEL;
1618                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1619         }
1620         return val;
1621 }
1622
1623 /* convert to SPDIF status bits from HDA SPDIF bits
1624  */
1625 static unsigned int convert_to_spdif_status(unsigned short val)
1626 {
1627         unsigned int sbits = 0;
1628
1629         if (val & AC_DIG1_NONAUDIO)
1630                 sbits |= IEC958_AES0_NONAUDIO;
1631         if (val & AC_DIG1_PROFESSIONAL)
1632                 sbits |= IEC958_AES0_PROFESSIONAL;
1633         if (sbits & IEC958_AES0_PROFESSIONAL) {
1634                 if (sbits & AC_DIG1_EMPHASIS)
1635                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1636         } else {
1637                 if (val & AC_DIG1_EMPHASIS)
1638                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1639                 if (!(val & AC_DIG1_COPYRIGHT))
1640                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1641                 if (val & AC_DIG1_LEVEL)
1642                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1643                 sbits |= val & (0x7f << 8);
1644         }
1645         return sbits;
1646 }
1647
1648 /* set digital convert verbs both for the given NID and its slaves */
1649 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
1650                         int verb, int val)
1651 {
1652         hda_nid_t *d;
1653
1654         snd_hda_codec_write_cache(codec, nid, 0, verb, val);
1655         d = codec->slave_dig_outs;
1656         if (!d)
1657                 return;
1658         for (; *d; d++)
1659                 snd_hda_codec_write_cache(codec, *d, 0, verb, val);
1660 }
1661
1662 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
1663                                        int dig1, int dig2)
1664 {
1665         if (dig1 != -1)
1666                 set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_1, dig1);
1667         if (dig2 != -1)
1668                 set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_2, dig2);
1669 }
1670
1671 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
1672                                      struct snd_ctl_elem_value *ucontrol)
1673 {
1674         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1675         hda_nid_t nid = kcontrol->private_value;
1676         unsigned short val;
1677         int change;
1678
1679         mutex_lock(&codec->spdif_mutex);
1680         codec->spdif_status = ucontrol->value.iec958.status[0] |
1681                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1682                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1683                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1684         val = convert_from_spdif_status(codec->spdif_status);
1685         val |= codec->spdif_ctls & 1;
1686         change = codec->spdif_ctls != val;
1687         codec->spdif_ctls = val;
1688
1689         if (change)
1690                 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
1691
1692         mutex_unlock(&codec->spdif_mutex);
1693         return change;
1694 }
1695
1696 #define snd_hda_spdif_out_switch_info   snd_ctl_boolean_mono_info
1697
1698 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
1699                                         struct snd_ctl_elem_value *ucontrol)
1700 {
1701         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1702
1703         ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
1704         return 0;
1705 }
1706
1707 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
1708                                         struct snd_ctl_elem_value *ucontrol)
1709 {
1710         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1711         hda_nid_t nid = kcontrol->private_value;
1712         unsigned short val;
1713         int change;
1714
1715         mutex_lock(&codec->spdif_mutex);
1716         val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
1717         if (ucontrol->value.integer.value[0])
1718                 val |= AC_DIG1_ENABLE;
1719         change = codec->spdif_ctls != val;
1720         if (change) {
1721                 codec->spdif_ctls = val;
1722                 set_dig_out_convert(codec, nid, val & 0xff, -1);
1723                 /* unmute amp switch (if any) */
1724                 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
1725                     (val & AC_DIG1_ENABLE))
1726                         snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
1727                                                  HDA_AMP_MUTE, 0);
1728         }
1729         mutex_unlock(&codec->spdif_mutex);
1730         return change;
1731 }
1732
1733 static struct snd_kcontrol_new dig_mixes[] = {
1734         {
1735                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1736                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1737                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1738                 .info = snd_hda_spdif_mask_info,
1739                 .get = snd_hda_spdif_cmask_get,
1740         },
1741         {
1742                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1743                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1744                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1745                 .info = snd_hda_spdif_mask_info,
1746                 .get = snd_hda_spdif_pmask_get,
1747         },
1748         {
1749                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1750                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1751                 .info = snd_hda_spdif_mask_info,
1752                 .get = snd_hda_spdif_default_get,
1753                 .put = snd_hda_spdif_default_put,
1754         },
1755         {
1756                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1757                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1758                 .info = snd_hda_spdif_out_switch_info,
1759                 .get = snd_hda_spdif_out_switch_get,
1760                 .put = snd_hda_spdif_out_switch_put,
1761         },
1762         { } /* end */
1763 };
1764
1765 #define SPDIF_MAX_IDX   4       /* 4 instances should be enough to probe */
1766
1767 /**
1768  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1769  * @codec: the HDA codec
1770  * @nid: audio out widget NID
1771  *
1772  * Creates controls related with the SPDIF output.
1773  * Called from each patch supporting the SPDIF out.
1774  *
1775  * Returns 0 if successful, or a negative error code.
1776  */
1777 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1778 {
1779         int err;
1780         struct snd_kcontrol *kctl;
1781         struct snd_kcontrol_new *dig_mix;
1782         int idx;
1783
1784         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1785                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Playback Switch",
1786                                              idx))
1787                         break;
1788         }
1789         if (idx >= SPDIF_MAX_IDX) {
1790                 printk(KERN_ERR "hda_codec: too many IEC958 outputs\n");
1791                 return -EBUSY;
1792         }
1793         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1794                 kctl = snd_ctl_new1(dig_mix, codec);
1795                 if (!kctl)
1796                         return -ENOMEM;
1797                 kctl->id.index = idx;
1798                 kctl->private_value = nid;
1799                 err = snd_hda_ctl_add(codec, kctl);
1800                 if (err < 0)
1801                         return err;
1802         }
1803         codec->spdif_ctls =
1804                 snd_hda_codec_read(codec, nid, 0,
1805                                    AC_VERB_GET_DIGI_CONVERT_1, 0);
1806         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1807         return 0;
1808 }
1809 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_out_ctls);
1810
1811 /*
1812  * SPDIF sharing with analog output
1813  */
1814 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
1815                               struct snd_ctl_elem_value *ucontrol)
1816 {
1817         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1818         ucontrol->value.integer.value[0] = mout->share_spdif;
1819         return 0;
1820 }
1821
1822 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
1823                               struct snd_ctl_elem_value *ucontrol)
1824 {
1825         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1826         mout->share_spdif = !!ucontrol->value.integer.value[0];
1827         return 0;
1828 }
1829
1830 static struct snd_kcontrol_new spdif_share_sw = {
1831         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1832         .name = "IEC958 Default PCM Playback Switch",
1833         .info = snd_ctl_boolean_mono_info,
1834         .get = spdif_share_sw_get,
1835         .put = spdif_share_sw_put,
1836 };
1837
1838 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
1839                                   struct hda_multi_out *mout)
1840 {
1841         if (!mout->dig_out_nid)
1842                 return 0;
1843         /* ATTENTION: here mout is passed as private_data, instead of codec */
1844         return snd_hda_ctl_add(codec,
1845                            snd_ctl_new1(&spdif_share_sw, mout));
1846 }
1847 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_share_sw);
1848
1849 /*
1850  * SPDIF input
1851  */
1852
1853 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1854
1855 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
1856                                        struct snd_ctl_elem_value *ucontrol)
1857 {
1858         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1859
1860         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1861         return 0;
1862 }
1863
1864 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
1865                                        struct snd_ctl_elem_value *ucontrol)
1866 {
1867         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1868         hda_nid_t nid = kcontrol->private_value;
1869         unsigned int val = !!ucontrol->value.integer.value[0];
1870         int change;
1871
1872         mutex_lock(&codec->spdif_mutex);
1873         change = codec->spdif_in_enable != val;
1874         if (change) {
1875                 codec->spdif_in_enable = val;
1876                 snd_hda_codec_write_cache(codec, nid, 0,
1877                                           AC_VERB_SET_DIGI_CONVERT_1, val);
1878         }
1879         mutex_unlock(&codec->spdif_mutex);
1880         return change;
1881 }
1882
1883 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
1884                                        struct snd_ctl_elem_value *ucontrol)
1885 {
1886         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1887         hda_nid_t nid = kcontrol->private_value;
1888         unsigned short val;
1889         unsigned int sbits;
1890
1891         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0);
1892         sbits = convert_to_spdif_status(val);
1893         ucontrol->value.iec958.status[0] = sbits;
1894         ucontrol->value.iec958.status[1] = sbits >> 8;
1895         ucontrol->value.iec958.status[2] = sbits >> 16;
1896         ucontrol->value.iec958.status[3] = sbits >> 24;
1897         return 0;
1898 }
1899
1900 static struct snd_kcontrol_new dig_in_ctls[] = {
1901         {
1902                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1903                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1904                 .info = snd_hda_spdif_in_switch_info,
1905                 .get = snd_hda_spdif_in_switch_get,
1906                 .put = snd_hda_spdif_in_switch_put,
1907         },
1908         {
1909                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1910                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1911                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1912                 .info = snd_hda_spdif_mask_info,
1913                 .get = snd_hda_spdif_in_status_get,
1914         },
1915         { } /* end */
1916 };
1917
1918 /**
1919  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1920  * @codec: the HDA codec
1921  * @nid: audio in widget NID
1922  *
1923  * Creates controls related with the SPDIF input.
1924  * Called from each patch supporting the SPDIF in.
1925  *
1926  * Returns 0 if successful, or a negative error code.
1927  */
1928 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1929 {
1930         int err;
1931         struct snd_kcontrol *kctl;
1932         struct snd_kcontrol_new *dig_mix;
1933         int idx;
1934
1935         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1936                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Capture Switch",
1937                                              idx))
1938                         break;
1939         }
1940         if (idx >= SPDIF_MAX_IDX) {
1941                 printk(KERN_ERR "hda_codec: too many IEC958 inputs\n");
1942                 return -EBUSY;
1943         }
1944         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1945                 kctl = snd_ctl_new1(dig_mix, codec);
1946                 kctl->private_value = nid;
1947                 err = snd_hda_ctl_add(codec, kctl);
1948                 if (err < 0)
1949                         return err;
1950         }
1951         codec->spdif_in_enable =
1952                 snd_hda_codec_read(codec, nid, 0,
1953                                    AC_VERB_GET_DIGI_CONVERT_1, 0) &
1954                 AC_DIG1_ENABLE;
1955         return 0;
1956 }
1957 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_in_ctls);
1958
1959 #ifdef SND_HDA_NEEDS_RESUME
1960 /*
1961  * command cache
1962  */
1963
1964 /* build a 32bit cache key with the widget id and the command parameter */
1965 #define build_cmd_cache_key(nid, verb)  ((verb << 8) | nid)
1966 #define get_cmd_cache_nid(key)          ((key) & 0xff)
1967 #define get_cmd_cache_cmd(key)          (((key) >> 8) & 0xffff)
1968
1969 /**
1970  * snd_hda_codec_write_cache - send a single command with caching
1971  * @codec: the HDA codec
1972  * @nid: NID to send the command
1973  * @direct: direct flag
1974  * @verb: the verb to send
1975  * @parm: the parameter for the verb
1976  *
1977  * Send a single command without waiting for response.
1978  *
1979  * Returns 0 if successful, or a negative error code.
1980  */
1981 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
1982                               int direct, unsigned int verb, unsigned int parm)
1983 {
1984         struct hda_bus *bus = codec->bus;
1985         unsigned int res;
1986         int err;
1987
1988         res = make_codec_cmd(codec, nid, direct, verb, parm);
1989         snd_hda_power_up(codec);
1990         mutex_lock(&bus->cmd_mutex);
1991         err = bus->ops.command(bus, res);
1992         if (!err) {
1993                 struct hda_cache_head *c;
1994                 u32 key = build_cmd_cache_key(nid, verb);
1995                 c = get_alloc_hash(&codec->cmd_cache, key);
1996                 if (c)
1997                         c->val = parm;
1998         }
1999         mutex_unlock(&bus->cmd_mutex);
2000         snd_hda_power_down(codec);
2001         return err;
2002 }
2003 EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
2004
2005 /* resume the all commands from the cache */
2006 void snd_hda_codec_resume_cache(struct hda_codec *codec)
2007 {
2008         struct hda_cache_head *buffer = codec->cmd_cache.buf.list;
2009         int i;
2010
2011         for (i = 0; i < codec->cmd_cache.buf.used; i++, buffer++) {
2012                 u32 key = buffer->key;
2013                 if (!key)
2014                         continue;
2015                 snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0,
2016                                     get_cmd_cache_cmd(key), buffer->val);
2017         }
2018 }
2019 EXPORT_SYMBOL_HDA(snd_hda_codec_resume_cache);
2020
2021 /**
2022  * snd_hda_sequence_write_cache - sequence writes with caching
2023  * @codec: the HDA codec
2024  * @seq: VERB array to send
2025  *
2026  * Send the commands sequentially from the given array.
2027  * Thte commands are recorded on cache for power-save and resume.
2028  * The array must be terminated with NID=0.
2029  */
2030 void snd_hda_sequence_write_cache(struct hda_codec *codec,
2031                                   const struct hda_verb *seq)
2032 {
2033         for (; seq->nid; seq++)
2034                 snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb,
2035                                           seq->param);
2036 }
2037 EXPORT_SYMBOL_HDA(snd_hda_sequence_write_cache);
2038 #endif /* SND_HDA_NEEDS_RESUME */
2039
2040 /*
2041  * set power state of the codec
2042  */
2043 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2044                                 unsigned int power_state)
2045 {
2046         hda_nid_t nid;
2047         int i;
2048
2049         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
2050                             power_state);
2051         msleep(10); /* partial workaround for "azx_get_response timeout" */
2052
2053         nid = codec->start_nid;
2054         for (i = 0; i < codec->num_nodes; i++, nid++) {
2055                 unsigned int wcaps = get_wcaps(codec, nid);
2056                 if (wcaps & AC_WCAP_POWER) {
2057                         unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
2058                                 AC_WCAP_TYPE_SHIFT;
2059                         if (wid_type == AC_WID_PIN) {
2060                                 unsigned int pincap;
2061                                 /*
2062                                  * don't power down the widget if it controls
2063                                  * eapd and EAPD_BTLENABLE is set.
2064                                  */
2065                                 pincap = snd_hda_param_read(codec, nid,
2066                                                             AC_PAR_PIN_CAP);
2067                                 if (pincap & AC_PINCAP_EAPD) {
2068                                         int eapd = snd_hda_codec_read(codec,
2069                                                 nid, 0,
2070                                                 AC_VERB_GET_EAPD_BTLENABLE, 0);
2071                                         eapd &= 0x02;
2072                                         if (power_state == AC_PWRST_D3 && eapd)
2073                                                 continue;
2074                                 }
2075                         }
2076                         snd_hda_codec_write(codec, nid, 0,
2077                                             AC_VERB_SET_POWER_STATE,
2078                                             power_state);
2079                 }
2080         }
2081
2082         if (power_state == AC_PWRST_D0) {
2083                 unsigned long end_time;
2084                 int state;
2085                 msleep(10);
2086                 /* wait until the codec reachs to D0 */
2087                 end_time = jiffies + msecs_to_jiffies(500);
2088                 do {
2089                         state = snd_hda_codec_read(codec, fg, 0,
2090                                                    AC_VERB_GET_POWER_STATE, 0);
2091                         if (state == power_state)
2092                                 break;
2093                         msleep(1);
2094                 } while (time_after_eq(end_time, jiffies));
2095         }
2096 }
2097
2098 #ifdef CONFIG_SND_HDA_HWDEP
2099 /* execute additional init verbs */
2100 static void hda_exec_init_verbs(struct hda_codec *codec)
2101 {
2102         if (codec->init_verbs.list)
2103                 snd_hda_sequence_write(codec, codec->init_verbs.list);
2104 }
2105 #else
2106 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2107 #endif
2108
2109 #ifdef SND_HDA_NEEDS_RESUME
2110 /*
2111  * call suspend and power-down; used both from PM and power-save
2112  */
2113 static void hda_call_codec_suspend(struct hda_codec *codec)
2114 {
2115         if (codec->patch_ops.suspend)
2116                 codec->patch_ops.suspend(codec, PMSG_SUSPEND);
2117         hda_set_power_state(codec,
2118                             codec->afg ? codec->afg : codec->mfg,
2119                             AC_PWRST_D3);
2120 #ifdef CONFIG_SND_HDA_POWER_SAVE
2121         cancel_delayed_work(&codec->power_work);
2122         codec->power_on = 0;
2123         codec->power_transition = 0;
2124 #endif
2125 }
2126
2127 /*
2128  * kick up codec; used both from PM and power-save
2129  */
2130 static void hda_call_codec_resume(struct hda_codec *codec)
2131 {
2132         hda_set_power_state(codec,
2133                             codec->afg ? codec->afg : codec->mfg,
2134                             AC_PWRST_D0);
2135         hda_exec_init_verbs(codec);
2136         if (codec->patch_ops.resume)
2137                 codec->patch_ops.resume(codec);
2138         else {
2139                 if (codec->patch_ops.init)
2140                         codec->patch_ops.init(codec);
2141                 snd_hda_codec_resume_amp(codec);
2142                 snd_hda_codec_resume_cache(codec);
2143         }
2144 }
2145 #endif /* SND_HDA_NEEDS_RESUME */
2146
2147
2148 /**
2149  * snd_hda_build_controls - build mixer controls
2150  * @bus: the BUS
2151  *
2152  * Creates mixer controls for each codec included in the bus.
2153  *
2154  * Returns 0 if successful, otherwise a negative error code.
2155  */
2156 int /*__devinit*/ snd_hda_build_controls(struct hda_bus *bus)
2157 {
2158         struct hda_codec *codec;
2159
2160         list_for_each_entry(codec, &bus->codec_list, list) {
2161                 int err = snd_hda_codec_build_controls(codec);
2162                 if (err < 0)
2163                         return err;
2164         }
2165         return 0;
2166 }
2167 EXPORT_SYMBOL_HDA(snd_hda_build_controls);
2168
2169 int snd_hda_codec_build_controls(struct hda_codec *codec)
2170 {
2171         int err = 0;
2172         /* fake as if already powered-on */
2173         hda_keep_power_on(codec);
2174         /* then fire up */
2175         hda_set_power_state(codec,
2176                             codec->afg ? codec->afg : codec->mfg,
2177                             AC_PWRST_D0);
2178         hda_exec_init_verbs(codec);
2179         /* continue to initialize... */
2180         if (codec->patch_ops.init)
2181                 err = codec->patch_ops.init(codec);
2182         if (!err && codec->patch_ops.build_controls)
2183                 err = codec->patch_ops.build_controls(codec);
2184         snd_hda_power_down(codec);
2185         if (err < 0)
2186                 return err;
2187         return 0;
2188 }
2189
2190 /*
2191  * stream formats
2192  */
2193 struct hda_rate_tbl {
2194         unsigned int hz;
2195         unsigned int alsa_bits;
2196         unsigned int hda_fmt;
2197 };
2198
2199 static struct hda_rate_tbl rate_bits[] = {
2200         /* rate in Hz, ALSA rate bitmask, HDA format value */
2201
2202         /* autodetected value used in snd_hda_query_supported_pcm */
2203         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
2204         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
2205         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
2206         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
2207         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
2208         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
2209         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
2210         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
2211         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
2212         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
2213         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
2214 #define AC_PAR_PCM_RATE_BITS    11
2215         /* up to bits 10, 384kHZ isn't supported properly */
2216
2217         /* not autodetected value */
2218         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
2219
2220         { 0 } /* terminator */
2221 };
2222
2223 /**
2224  * snd_hda_calc_stream_format - calculate format bitset
2225  * @rate: the sample rate
2226  * @channels: the number of channels
2227  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
2228  * @maxbps: the max. bps
2229  *
2230  * Calculate the format bitset from the given rate, channels and th PCM format.
2231  *
2232  * Return zero if invalid.
2233  */
2234 unsigned int snd_hda_calc_stream_format(unsigned int rate,
2235                                         unsigned int channels,
2236                                         unsigned int format,
2237                                         unsigned int maxbps)
2238 {
2239         int i;
2240         unsigned int val = 0;
2241
2242         for (i = 0; rate_bits[i].hz; i++)
2243                 if (rate_bits[i].hz == rate) {
2244                         val = rate_bits[i].hda_fmt;
2245                         break;
2246                 }
2247         if (!rate_bits[i].hz) {
2248                 snd_printdd("invalid rate %d\n", rate);
2249                 return 0;
2250         }
2251
2252         if (channels == 0 || channels > 8) {
2253                 snd_printdd("invalid channels %d\n", channels);
2254                 return 0;
2255         }
2256         val |= channels - 1;
2257
2258         switch (snd_pcm_format_width(format)) {
2259         case 8:  val |= 0x00; break;
2260         case 16: val |= 0x10; break;
2261         case 20:
2262         case 24:
2263         case 32:
2264                 if (maxbps >= 32)
2265                         val |= 0x40;
2266                 else if (maxbps >= 24)
2267                         val |= 0x30;
2268                 else
2269                         val |= 0x20;
2270                 break;
2271         default:
2272                 snd_printdd("invalid format width %d\n",
2273                             snd_pcm_format_width(format));
2274                 return 0;
2275         }
2276
2277         return val;
2278 }
2279 EXPORT_SYMBOL_HDA(snd_hda_calc_stream_format);
2280
2281 /**
2282  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
2283  * @codec: the HDA codec
2284  * @nid: NID to query
2285  * @ratesp: the pointer to store the detected rate bitflags
2286  * @formatsp: the pointer to store the detected formats
2287  * @bpsp: the pointer to store the detected format widths
2288  *
2289  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
2290  * or @bsps argument is ignored.
2291  *
2292  * Returns 0 if successful, otherwise a negative error code.
2293  */
2294 static int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
2295                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
2296 {
2297         int i;
2298         unsigned int val, streams;
2299
2300         val = 0;
2301         if (nid != codec->afg &&
2302             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2303                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2304                 if (val == -1)
2305                         return -EIO;
2306         }
2307         if (!val)
2308                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2309
2310         if (ratesp) {
2311                 u32 rates = 0;
2312                 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
2313                         if (val & (1 << i))
2314                                 rates |= rate_bits[i].alsa_bits;
2315                 }
2316                 *ratesp = rates;
2317         }
2318
2319         if (formatsp || bpsp) {
2320                 u64 formats = 0;
2321                 unsigned int bps;
2322                 unsigned int wcaps;
2323
2324                 wcaps = get_wcaps(codec, nid);
2325                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2326                 if (streams == -1)
2327                         return -EIO;
2328                 if (!streams) {
2329                         streams = snd_hda_param_read(codec, codec->afg,
2330                                                      AC_PAR_STREAM);
2331                         if (streams == -1)
2332                                 return -EIO;
2333                 }
2334
2335                 bps = 0;
2336                 if (streams & AC_SUPFMT_PCM) {
2337                         if (val & AC_SUPPCM_BITS_8) {
2338                                 formats |= SNDRV_PCM_FMTBIT_U8;
2339                                 bps = 8;
2340                         }
2341                         if (val & AC_SUPPCM_BITS_16) {
2342                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
2343                                 bps = 16;
2344                         }
2345                         if (wcaps & AC_WCAP_DIGITAL) {
2346                                 if (val & AC_SUPPCM_BITS_32)
2347                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
2348                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
2349                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
2350                                 if (val & AC_SUPPCM_BITS_24)
2351                                         bps = 24;
2352                                 else if (val & AC_SUPPCM_BITS_20)
2353                                         bps = 20;
2354                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
2355                                           AC_SUPPCM_BITS_32)) {
2356                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
2357                                 if (val & AC_SUPPCM_BITS_32)
2358                                         bps = 32;
2359                                 else if (val & AC_SUPPCM_BITS_24)
2360                                         bps = 24;
2361                                 else if (val & AC_SUPPCM_BITS_20)
2362                                         bps = 20;
2363                         }
2364                 }
2365                 else if (streams == AC_SUPFMT_FLOAT32) {
2366                         /* should be exclusive */
2367                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
2368                         bps = 32;
2369                 } else if (streams == AC_SUPFMT_AC3) {
2370                         /* should be exclusive */
2371                         /* temporary hack: we have still no proper support
2372                          * for the direct AC3 stream...
2373                          */
2374                         formats |= SNDRV_PCM_FMTBIT_U8;
2375                         bps = 8;
2376                 }
2377                 if (formatsp)
2378                         *formatsp = formats;
2379                 if (bpsp)
2380                         *bpsp = bps;
2381         }
2382
2383         return 0;
2384 }
2385
2386 /**
2387  * snd_hda_is_supported_format - check whether the given node supports
2388  * the format val
2389  *
2390  * Returns 1 if supported, 0 if not.
2391  */
2392 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
2393                                 unsigned int format)
2394 {
2395         int i;
2396         unsigned int val = 0, rate, stream;
2397
2398         if (nid != codec->afg &&
2399             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2400                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2401                 if (val == -1)
2402                         return 0;
2403         }
2404         if (!val) {
2405                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2406                 if (val == -1)
2407                         return 0;
2408         }
2409
2410         rate = format & 0xff00;
2411         for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
2412                 if (rate_bits[i].hda_fmt == rate) {
2413                         if (val & (1 << i))
2414                                 break;
2415                         return 0;
2416                 }
2417         if (i >= AC_PAR_PCM_RATE_BITS)
2418                 return 0;
2419
2420         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2421         if (stream == -1)
2422                 return 0;
2423         if (!stream && nid != codec->afg)
2424                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
2425         if (!stream || stream == -1)
2426                 return 0;
2427
2428         if (stream & AC_SUPFMT_PCM) {
2429                 switch (format & 0xf0) {
2430                 case 0x00:
2431                         if (!(val & AC_SUPPCM_BITS_8))
2432                                 return 0;
2433                         break;
2434                 case 0x10:
2435                         if (!(val & AC_SUPPCM_BITS_16))
2436                                 return 0;
2437                         break;
2438                 case 0x20:
2439                         if (!(val & AC_SUPPCM_BITS_20))
2440                                 return 0;
2441                         break;
2442                 case 0x30:
2443                         if (!(val & AC_SUPPCM_BITS_24))
2444                                 return 0;
2445                         break;
2446                 case 0x40:
2447                         if (!(val & AC_SUPPCM_BITS_32))
2448                                 return 0;
2449                         break;
2450                 default:
2451                         return 0;
2452                 }
2453         } else {
2454                 /* FIXME: check for float32 and AC3? */
2455         }
2456
2457         return 1;
2458 }
2459 EXPORT_SYMBOL_HDA(snd_hda_is_supported_format);
2460
2461 /*
2462  * PCM stuff
2463  */
2464 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
2465                                       struct hda_codec *codec,
2466                                       struct snd_pcm_substream *substream)
2467 {
2468         return 0;
2469 }
2470
2471 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
2472                                    struct hda_codec *codec,
2473                                    unsigned int stream_tag,
2474                                    unsigned int format,
2475                                    struct snd_pcm_substream *substream)
2476 {
2477         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
2478         return 0;
2479 }
2480
2481 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
2482                                    struct hda_codec *codec,
2483                                    struct snd_pcm_substream *substream)
2484 {
2485         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
2486         return 0;
2487 }
2488
2489 static int set_pcm_default_values(struct hda_codec *codec,
2490                                   struct hda_pcm_stream *info)
2491 {
2492         /* query support PCM information from the given NID */
2493         if (info->nid && (!info->rates || !info->formats)) {
2494                 snd_hda_query_supported_pcm(codec, info->nid,
2495                                 info->rates ? NULL : &info->rates,
2496                                 info->formats ? NULL : &info->formats,
2497                                 info->maxbps ? NULL : &info->maxbps);
2498         }
2499         if (info->ops.open == NULL)
2500                 info->ops.open = hda_pcm_default_open_close;
2501         if (info->ops.close == NULL)
2502                 info->ops.close = hda_pcm_default_open_close;
2503         if (info->ops.prepare == NULL) {
2504                 if (snd_BUG_ON(!info->nid))
2505                         return -EINVAL;
2506                 info->ops.prepare = hda_pcm_default_prepare;
2507         }
2508         if (info->ops.cleanup == NULL) {
2509                 if (snd_BUG_ON(!info->nid))
2510                         return -EINVAL;
2511                 info->ops.cleanup = hda_pcm_default_cleanup;
2512         }
2513         return 0;
2514 }
2515
2516 /*
2517  * get the empty PCM device number to assign
2518  */
2519 static int get_empty_pcm_device(struct hda_bus *bus, int type)
2520 {
2521         static const char *dev_name[HDA_PCM_NTYPES] = {
2522                 "Audio", "SPDIF", "HDMI", "Modem"
2523         };
2524         /* starting device index for each PCM type */
2525         static int dev_idx[HDA_PCM_NTYPES] = {
2526                 [HDA_PCM_TYPE_AUDIO] = 0,
2527                 [HDA_PCM_TYPE_SPDIF] = 1,
2528                 [HDA_PCM_TYPE_HDMI] = 3,
2529                 [HDA_PCM_TYPE_MODEM] = 6
2530         };
2531         /* normal audio device indices; not linear to keep compatibility */
2532         static int audio_idx[4] = { 0, 2, 4, 5 };
2533         int i, dev;
2534
2535         switch (type) {
2536         case HDA_PCM_TYPE_AUDIO:
2537                 for (i = 0; i < ARRAY_SIZE(audio_idx); i++) {
2538                         dev = audio_idx[i];
2539                         if (!test_bit(dev, bus->pcm_dev_bits))
2540                                 break;
2541                 }
2542                 if (i >= ARRAY_SIZE(audio_idx)) {
2543                         snd_printk(KERN_WARNING "Too many audio devices\n");
2544                         return -EAGAIN;
2545                 }
2546                 break;
2547         case HDA_PCM_TYPE_SPDIF:
2548         case HDA_PCM_TYPE_HDMI:
2549         case HDA_PCM_TYPE_MODEM:
2550                 dev = dev_idx[type];
2551                 if (test_bit(dev, bus->pcm_dev_bits)) {
2552                         snd_printk(KERN_WARNING "%s already defined\n",
2553                                    dev_name[type]);
2554                         return -EAGAIN;
2555                 }
2556                 break;
2557         default:
2558                 snd_printk(KERN_WARNING "Invalid PCM type %d\n", type);
2559                 return -EINVAL;
2560         }
2561         set_bit(dev, bus->pcm_dev_bits);
2562         return dev;
2563 }
2564
2565 /*
2566  * attach a new PCM stream
2567  */
2568 static int snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
2569 {
2570         struct hda_bus *bus = codec->bus;
2571         struct hda_pcm_stream *info;
2572         int stream, err;
2573
2574         if (snd_BUG_ON(!pcm->name))
2575                 return -EINVAL;
2576         for (stream = 0; stream < 2; stream++) {
2577                 info = &pcm->stream[stream];
2578                 if (info->substreams) {
2579                         err = set_pcm_default_values(codec, info);
2580                         if (err < 0)
2581                                 return err;
2582                 }
2583         }
2584         return bus->ops.attach_pcm(bus, codec, pcm);
2585 }
2586
2587 /* assign all PCMs of the given codec */
2588 int snd_hda_codec_build_pcms(struct hda_codec *codec)
2589 {
2590         unsigned int pcm;
2591         int err;
2592
2593         if (!codec->num_pcms) {
2594                 if (!codec->patch_ops.build_pcms)
2595                         return 0;
2596                 err = codec->patch_ops.build_pcms(codec);
2597                 if (err < 0)
2598                         return err;
2599         }
2600         for (pcm = 0; pcm < codec->num_pcms; pcm++) {
2601                 struct hda_pcm *cpcm = &codec->pcm_info[pcm];
2602                 int dev;
2603
2604                 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
2605                         return 0; /* no substreams assigned */
2606
2607                 if (!cpcm->pcm) {
2608                         dev = get_empty_pcm_device(codec->bus, cpcm->pcm_type);
2609                         if (dev < 0)
2610                                 return 0;
2611                         cpcm->device = dev;
2612                         err = snd_hda_attach_pcm(codec, cpcm);
2613                         if (err < 0)
2614                                 return err;
2615                 }
2616         }
2617         return 0;
2618 }
2619
2620 /**
2621  * snd_hda_build_pcms - build PCM information
2622  * @bus: the BUS
2623  *
2624  * Create PCM information for each codec included in the bus.
2625  *
2626  * The build_pcms codec patch is requested to set up codec->num_pcms and
2627  * codec->pcm_info properly.  The array is referred by the top-level driver
2628  * to create its PCM instances.
2629  * The allocated codec->pcm_info should be released in codec->patch_ops.free
2630  * callback.
2631  *
2632  * At least, substreams, channels_min and channels_max must be filled for
2633  * each stream.  substreams = 0 indicates that the stream doesn't exist.
2634  * When rates and/or formats are zero, the supported values are queried
2635  * from the given nid.  The nid is used also by the default ops.prepare
2636  * and ops.cleanup callbacks.
2637  *
2638  * The driver needs to call ops.open in its open callback.  Similarly,
2639  * ops.close is supposed to be called in the close callback.
2640  * ops.prepare should be called in the prepare or hw_params callback
2641  * with the proper parameters for set up.
2642  * ops.cleanup should be called in hw_free for clean up of streams.
2643  *
2644  * This function returns 0 if successfull, or a negative error code.
2645  */
2646 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
2647 {
2648         struct hda_codec *codec;
2649
2650         list_for_each_entry(codec, &bus->codec_list, list) {
2651                 int err = snd_hda_codec_build_pcms(codec);
2652                 if (err < 0)
2653                         return err;
2654         }
2655         return 0;
2656 }
2657 EXPORT_SYMBOL_HDA(snd_hda_build_pcms);
2658
2659 /**
2660  * snd_hda_check_board_config - compare the current codec with the config table
2661  * @codec: the HDA codec
2662  * @num_configs: number of config enums
2663  * @models: array of model name strings
2664  * @tbl: configuration table, terminated by null entries
2665  *
2666  * Compares the modelname or PCI subsystem id of the current codec with the
2667  * given configuration table.  If a matching entry is found, returns its
2668  * config value (supposed to be 0 or positive).
2669  *
2670  * If no entries are matching, the function returns a negative value.
2671  */
2672 int snd_hda_check_board_config(struct hda_codec *codec,
2673                                int num_configs, const char **models,
2674                                const struct snd_pci_quirk *tbl)
2675 {
2676         if (codec->modelname && models) {
2677                 int i;
2678                 for (i = 0; i < num_configs; i++) {
2679                         if (models[i] &&
2680                             !strcmp(codec->modelname, models[i])) {
2681                                 snd_printd(KERN_INFO "hda_codec: model '%s' is "
2682                                            "selected\n", models[i]);
2683                                 return i;
2684                         }
2685                 }
2686         }
2687
2688         if (!codec->bus->pci || !tbl)
2689                 return -1;
2690
2691         tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
2692         if (!tbl)
2693                 return -1;
2694         if (tbl->value >= 0 && tbl->value < num_configs) {
2695 #ifdef CONFIG_SND_DEBUG_VERBOSE
2696                 char tmp[10];
2697                 const char *model = NULL;
2698                 if (models)
2699                         model = models[tbl->value];
2700                 if (!model) {
2701                         sprintf(tmp, "#%d", tbl->value);
2702                         model = tmp;
2703                 }
2704                 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
2705                             "for config %x:%x (%s)\n",
2706                             model, tbl->subvendor, tbl->subdevice,
2707                             (tbl->name ? tbl->name : "Unknown device"));
2708 #endif
2709                 return tbl->value;
2710         }
2711         return -1;
2712 }
2713 EXPORT_SYMBOL_HDA(snd_hda_check_board_config);
2714
2715 /**
2716  * snd_hda_add_new_ctls - create controls from the array
2717  * @codec: the HDA codec
2718  * @knew: the array of struct snd_kcontrol_new
2719  *
2720  * This helper function creates and add new controls in the given array.
2721  * The array must be terminated with an empty entry as terminator.
2722  *
2723  * Returns 0 if successful, or a negative error code.
2724  */
2725 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2726 {
2727         int err;
2728
2729         for (; knew->name; knew++) {
2730                 struct snd_kcontrol *kctl;
2731                 kctl = snd_ctl_new1(knew, codec);
2732                 if (!kctl)
2733                         return -ENOMEM;
2734                 err = snd_hda_ctl_add(codec, kctl);
2735                 if (err < 0) {
2736                         if (!codec->addr)
2737                                 return err;
2738                         kctl = snd_ctl_new1(knew, codec);
2739                         if (!kctl)
2740                                 return -ENOMEM;
2741                         kctl->id.device = codec->addr;
2742                         err = snd_hda_ctl_add(codec, kctl);
2743                         if (err < 0)
2744                                 return err;
2745                 }
2746         }
2747         return 0;
2748 }
2749 EXPORT_SYMBOL_HDA(snd_hda_add_new_ctls);
2750
2751 #ifdef CONFIG_SND_HDA_POWER_SAVE
2752 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2753                                 unsigned int power_state);
2754
2755 static void hda_power_work(struct work_struct *work)
2756 {
2757         struct hda_codec *codec =
2758                 container_of(work, struct hda_codec, power_work.work);
2759         struct hda_bus *bus = codec->bus;
2760
2761         if (!codec->power_on || codec->power_count) {
2762                 codec->power_transition = 0;
2763                 return;
2764         }
2765
2766         hda_call_codec_suspend(codec);
2767         if (bus->ops.pm_notify)
2768                 bus->ops.pm_notify(bus);
2769 }
2770
2771 static void hda_keep_power_on(struct hda_codec *codec)
2772 {
2773         codec->power_count++;
2774         codec->power_on = 1;
2775 }
2776
2777 void snd_hda_power_up(struct hda_codec *codec)
2778 {
2779         struct hda_bus *bus = codec->bus;
2780
2781         codec->power_count++;
2782         if (codec->power_on || codec->power_transition)
2783                 return;
2784
2785         codec->power_on = 1;
2786         if (bus->ops.pm_notify)
2787                 bus->ops.pm_notify(bus);
2788         hda_call_codec_resume(codec);
2789         cancel_delayed_work(&codec->power_work);
2790         codec->power_transition = 0;
2791 }
2792 EXPORT_SYMBOL_HDA(snd_hda_power_up);
2793
2794 #define power_save(codec)       \
2795         ((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
2796
2797 #define power_save(codec)       \
2798         ((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
2799
2800 void snd_hda_power_down(struct hda_codec *codec)
2801 {
2802         --codec->power_count;
2803         if (!codec->power_on || codec->power_count || codec->power_transition)
2804                 return;
2805         if (power_save(codec)) {
2806                 codec->power_transition = 1; /* avoid reentrance */
2807                 schedule_delayed_work(&codec->power_work,
2808                                 msecs_to_jiffies(power_save(codec) * 1000));
2809         }
2810 }
2811 EXPORT_SYMBOL_HDA(snd_hda_power_down);
2812
2813 int snd_hda_check_amp_list_power(struct hda_codec *codec,
2814                                  struct hda_loopback_check *check,
2815                                  hda_nid_t nid)
2816 {
2817         struct hda_amp_list *p;
2818         int ch, v;
2819
2820         if (!check->amplist)
2821                 return 0;
2822         for (p = check->amplist; p->nid; p++) {
2823                 if (p->nid == nid)
2824                         break;
2825         }
2826         if (!p->nid)
2827                 return 0; /* nothing changed */
2828
2829         for (p = check->amplist; p->nid; p++) {
2830                 for (ch = 0; ch < 2; ch++) {
2831                         v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
2832                                                    p->idx);
2833                         if (!(v & HDA_AMP_MUTE) && v > 0) {
2834                                 if (!check->power_on) {
2835                                         check->power_on = 1;
2836                                         snd_hda_power_up(codec);
2837                                 }
2838                                 return 1;
2839                         }
2840                 }
2841         }
2842         if (check->power_on) {
2843                 check->power_on = 0;
2844                 snd_hda_power_down(codec);
2845         }
2846         return 0;
2847 }
2848 EXPORT_SYMBOL_HDA(snd_hda_check_amp_list_power);
2849 #endif
2850
2851 /*
2852  * Channel mode helper
2853  */
2854 int snd_hda_ch_mode_info(struct hda_codec *codec,
2855                          struct snd_ctl_elem_info *uinfo,
2856                          const struct hda_channel_mode *chmode,
2857                          int num_chmodes)
2858 {
2859         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2860         uinfo->count = 1;
2861         uinfo->value.enumerated.items = num_chmodes;
2862         if (uinfo->value.enumerated.item >= num_chmodes)
2863                 uinfo->value.enumerated.item = num_chmodes - 1;
2864         sprintf(uinfo->value.enumerated.name, "%dch",
2865                 chmode[uinfo->value.enumerated.item].channels);
2866         return 0;
2867 }
2868 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_info);
2869
2870 int snd_hda_ch_mode_get(struct hda_codec *codec,
2871                         struct snd_ctl_elem_value *ucontrol,
2872                         const struct hda_channel_mode *chmode,
2873                         int num_chmodes,
2874                         int max_channels)
2875 {
2876         int i;
2877
2878         for (i = 0; i < num_chmodes; i++) {
2879                 if (max_channels == chmode[i].channels) {
2880                         ucontrol->value.enumerated.item[0] = i;
2881                         break;
2882                 }
2883         }
2884         return 0;
2885 }
2886 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_get);
2887
2888 int snd_hda_ch_mode_put(struct hda_codec *codec,
2889                         struct snd_ctl_elem_value *ucontrol,
2890                         const struct hda_channel_mode *chmode,
2891                         int num_chmodes,
2892                         int *max_channelsp)
2893 {
2894         unsigned int mode;
2895
2896         mode = ucontrol->value.enumerated.item[0];
2897         if (mode >= num_chmodes)
2898                 return -EINVAL;
2899         if (*max_channelsp == chmode[mode].channels)
2900                 return 0;
2901         /* change the current channel setting */
2902         *max_channelsp = chmode[mode].channels;
2903         if (chmode[mode].sequence)
2904                 snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
2905         return 1;
2906 }
2907 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_put);
2908
2909 /*
2910  * input MUX helper
2911  */
2912 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
2913                            struct snd_ctl_elem_info *uinfo)
2914 {
2915         unsigned int index;
2916
2917         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2918         uinfo->count = 1;
2919         uinfo->value.enumerated.items = imux->num_items;
2920         if (!imux->num_items)
2921                 return 0;
2922         index = uinfo->value.enumerated.item;
2923         if (index >= imux->num_items)
2924                 index = imux->num_items - 1;
2925         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
2926         return 0;
2927 }
2928 EXPORT_SYMBOL_HDA(snd_hda_input_mux_info);
2929
2930 int snd_hda_input_mux_put(struct hda_codec *codec,
2931                           const struct hda_input_mux *imux,
2932                           struct snd_ctl_elem_value *ucontrol,
2933                           hda_nid_t nid,
2934                           unsigned int *cur_val)
2935 {
2936         unsigned int idx;
2937
2938         if (!imux->num_items)
2939                 return 0;
2940         idx = ucontrol->value.enumerated.item[0];
2941         if (idx >= imux->num_items)
2942                 idx = imux->num_items - 1;
2943         if (*cur_val == idx)
2944                 return 0;
2945         snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
2946                                   imux->items[idx].index);
2947         *cur_val = idx;
2948         return 1;
2949 }
2950 EXPORT_SYMBOL_HDA(snd_hda_input_mux_put);
2951
2952
2953 /*
2954  * Multi-channel / digital-out PCM helper functions
2955  */
2956
2957 /* setup SPDIF output stream */
2958 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
2959                                  unsigned int stream_tag, unsigned int format)
2960 {
2961         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2962         if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
2963                 set_dig_out_convert(codec, nid,
2964                                     codec->spdif_ctls & ~AC_DIG1_ENABLE & 0xff,
2965                                     -1);
2966         snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
2967         if (codec->slave_dig_outs) {
2968                 hda_nid_t *d;
2969                 for (d = codec->slave_dig_outs; *d; d++)
2970                         snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
2971                                                    format);
2972         }
2973         /* turn on again (if needed) */
2974         if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
2975                 set_dig_out_convert(codec, nid,
2976                                     codec->spdif_ctls & 0xff, -1);
2977 }
2978
2979 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
2980 {
2981         snd_hda_codec_cleanup_stream(codec, nid);
2982         if (codec->slave_dig_outs) {
2983                 hda_nid_t *d;
2984                 for (d = codec->slave_dig_outs; *d; d++)
2985                         snd_hda_codec_cleanup_stream(codec, *d);
2986         }
2987 }
2988
2989 /*
2990  * open the digital out in the exclusive mode
2991  */
2992 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
2993                                struct hda_multi_out *mout)
2994 {
2995         mutex_lock(&codec->spdif_mutex);
2996         if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
2997                 /* already opened as analog dup; reset it once */
2998                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
2999         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3000         mutex_unlock(&codec->spdif_mutex);
3001         return 0;
3002 }
3003 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_open);
3004
3005 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3006                                   struct hda_multi_out *mout,
3007                                   unsigned int stream_tag,
3008                                   unsigned int format,
3009                                   struct snd_pcm_substream *substream)
3010 {
3011         mutex_lock(&codec->spdif_mutex);
3012         setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3013         mutex_unlock(&codec->spdif_mutex);
3014         return 0;
3015 }
3016 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_prepare);
3017
3018 /*
3019  * release the digital out
3020  */
3021 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3022                                 struct hda_multi_out *mout)
3023 {
3024         mutex_lock(&codec->spdif_mutex);
3025         mout->dig_out_used = 0;
3026         mutex_unlock(&codec->spdif_mutex);
3027         return 0;
3028 }
3029 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_close);
3030
3031 /*
3032  * set up more restrictions for analog out
3033  */
3034 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3035                                   struct hda_multi_out *mout,
3036                                   struct snd_pcm_substream *substream,
3037                                   struct hda_pcm_stream *hinfo)
3038 {
3039         struct snd_pcm_runtime *runtime = substream->runtime;
3040         runtime->hw.channels_max = mout->max_channels;
3041         if (mout->dig_out_nid) {
3042                 if (!mout->analog_rates) {
3043                         mout->analog_rates = hinfo->rates;
3044                         mout->analog_formats = hinfo->formats;
3045                         mout->analog_maxbps = hinfo->maxbps;
3046                 } else {
3047                         runtime->hw.rates = mout->analog_rates;
3048                         runtime->hw.formats = mout->analog_formats;
3049                         hinfo->maxbps = mout->analog_maxbps;
3050                 }
3051                 if (!mout->spdif_rates) {
3052                         snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3053                                                     &mout->spdif_rates,
3054                                                     &mout->spdif_formats,
3055                                                     &mout->spdif_maxbps);
3056                 }
3057                 mutex_lock(&codec->spdif_mutex);
3058                 if (mout->share_spdif) {
3059                         runtime->hw.rates &= mout->spdif_rates;
3060                         runtime->hw.formats &= mout->spdif_formats;
3061                         if (mout->spdif_maxbps < hinfo->maxbps)
3062                                 hinfo->maxbps = mout->spdif_maxbps;
3063                 }
3064                 mutex_unlock(&codec->spdif_mutex);
3065         }
3066         return snd_pcm_hw_constraint_step(substream->runtime, 0,
3067                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3068 }
3069 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_open);
3070
3071 /*
3072  * set up the i/o for analog out
3073  * when the digital out is available, copy the front out to digital out, too.
3074  */
3075 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3076                                      struct hda_multi_out *mout,
3077                                      unsigned int stream_tag,
3078                                      unsigned int format,
3079                                      struct snd_pcm_substream *substream)
3080 {
3081         hda_nid_t *nids = mout->dac_nids;
3082         int chs = substream->runtime->channels;
3083         int i;
3084
3085         mutex_lock(&codec->spdif_mutex);
3086         if (mout->dig_out_nid && mout->share_spdif &&
3087             mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3088                 if (chs == 2 &&
3089                     snd_hda_is_supported_format(codec, mout->dig_out_nid,
3090                                                 format) &&
3091                     !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
3092                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3093                         setup_dig_out_stream(codec, mout->dig_out_nid,
3094                                              stream_tag, format);
3095                 } else {
3096                         mout->dig_out_used = 0;
3097                         cleanup_dig_out_stream(codec, mout->dig_out_nid);
3098                 }
3099         }
3100         mutex_unlock(&codec->spdif_mutex);
3101
3102         /* front */
3103         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3104                                    0, format);
3105         if (!mout->no_share_stream &&
3106             mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3107                 /* headphone out will just decode front left/right (stereo) */
3108                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3109                                            0, format);
3110         /* extra outputs copied from front */
3111         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3112                 if (!mout->no_share_stream && mout->extra_out_nid[i])
3113                         snd_hda_codec_setup_stream(codec,
3114                                                    mout->extra_out_nid[i],
3115                                                    stream_tag, 0, format);
3116
3117         /* surrounds */
3118         for (i = 1; i < mout->num_dacs; i++) {
3119                 if (chs >= (i + 1) * 2) /* independent out */
3120                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3121                                                    i * 2, format);
3122                 else if (!mout->no_share_stream) /* copy front */
3123                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3124                                                    0, format);
3125         }
3126         return 0;
3127 }
3128 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);
3129
3130 /*
3131  * clean up the setting for analog out
3132  */
3133 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3134                                      struct hda_multi_out *mout)
3135 {
3136         hda_nid_t *nids = mout->dac_nids;
3137         int i;
3138
3139         for (i = 0; i < mout->num_dacs; i++)
3140                 snd_hda_codec_cleanup_stream(codec, nids[i]);
3141         if (mout->hp_nid)
3142                 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3143         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3144                 if (mout->extra_out_nid[i])
3145                         snd_hda_codec_cleanup_stream(codec,
3146                                                      mout->extra_out_nid[i]);
3147         mutex_lock(&codec->spdif_mutex);
3148         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3149                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3150                 mout->dig_out_used = 0;
3151         }
3152         mutex_unlock(&codec->spdif_mutex);
3153         return 0;
3154 }
3155 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup);
3156
3157 /*
3158  * Helper for automatic pin configuration
3159  */
3160
3161 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
3162 {
3163         for (; *list; list++)
3164                 if (*list == nid)
3165                         return 1;
3166         return 0;
3167 }
3168
3169
3170 /*
3171  * Sort an associated group of pins according to their sequence numbers.
3172  */
3173 static void sort_pins_by_sequence(hda_nid_t * pins, short * sequences,
3174                                   int num_pins)
3175 {
3176         int i, j;
3177         short seq;
3178         hda_nid_t nid;
3179
3180         for (i = 0; i < num_pins; i++) {
3181                 for (j = i + 1; j < num_pins; j++) {
3182                         if (sequences[i] > sequences[j]) {
3183                                 seq = sequences[i];
3184                                 sequences[i] = sequences[j];
3185                                 sequences[j] = seq;
3186                                 nid = pins[i];
3187                                 pins[i] = pins[j];
3188                                 pins[j] = nid;
3189                         }
3190                 }
3191         }
3192 }
3193
3194
3195 /*
3196  * Parse all pin widgets and store the useful pin nids to cfg
3197  *
3198  * The number of line-outs or any primary output is stored in line_outs,
3199  * and the corresponding output pins are assigned to line_out_pins[],
3200  * in the order of front, rear, CLFE, side, ...
3201  *
3202  * If more extra outputs (speaker and headphone) are found, the pins are
3203  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
3204  * is detected, one of speaker of HP pins is assigned as the primary
3205  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
3206  * if any analog output exists.
3207  *
3208  * The analog input pins are assigned to input_pins array.
3209  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
3210  * respectively.
3211  */
3212 int snd_hda_parse_pin_def_config(struct hda_codec *codec,
3213                                  struct auto_pin_cfg *cfg,
3214                                  hda_nid_t *ignore_nids)
3215 {
3216         hda_nid_t nid, end_nid;
3217         short seq, assoc_line_out, assoc_speaker;
3218         short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
3219         short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
3220         short sequences_hp[ARRAY_SIZE(cfg->hp_pins)];
3221
3222         memset(cfg, 0, sizeof(*cfg));
3223
3224         memset(sequences_line_out, 0, sizeof(sequences_line_out));
3225         memset(sequences_speaker, 0, sizeof(sequences_speaker));
3226         memset(sequences_hp, 0, sizeof(sequences_hp));
3227         assoc_line_out = assoc_speaker = 0;
3228
3229         end_nid = codec->start_nid + codec->num_nodes;
3230         for (nid = codec->start_nid; nid < end_nid; nid++) {
3231                 unsigned int wid_caps = get_wcaps(codec, nid);
3232                 unsigned int wid_type =
3233                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
3234                 unsigned int def_conf;
3235                 short assoc, loc;
3236
3237                 /* read all default configuration for pin complex */
3238                 if (wid_type != AC_WID_PIN)
3239                         continue;
3240                 /* ignore the given nids (e.g. pc-beep returns error) */
3241                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
3242                         continue;
3243
3244                 def_conf = snd_hda_codec_read(codec, nid, 0,
3245                                               AC_VERB_GET_CONFIG_DEFAULT, 0);
3246                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
3247                         continue;
3248                 loc = get_defcfg_location(def_conf);
3249                 switch (get_defcfg_device(def_conf)) {
3250                 case AC_JACK_LINE_OUT:
3251                         seq = get_defcfg_sequence(def_conf);
3252                         assoc = get_defcfg_association(def_conf);
3253
3254                         if (!(wid_caps & AC_WCAP_STEREO))
3255                                 if (!cfg->mono_out_pin)
3256                                         cfg->mono_out_pin = nid;
3257                         if (!assoc)
3258                                 continue;
3259                         if (!assoc_line_out)
3260                                 assoc_line_out = assoc;
3261                         else if (assoc_line_out != assoc)
3262                                 continue;
3263                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
3264                                 continue;
3265                         cfg->line_out_pins[cfg->line_outs] = nid;
3266                         sequences_line_out[cfg->line_outs] = seq;
3267                         cfg->line_outs++;
3268                         break;
3269                 case AC_JACK_SPEAKER:
3270                         seq = get_defcfg_sequence(def_conf);
3271                         assoc = get_defcfg_association(def_conf);
3272                         if (! assoc)
3273                                 continue;
3274                         if (! assoc_speaker)
3275                                 assoc_speaker = assoc;
3276                         else if (assoc_speaker != assoc)
3277                                 continue;
3278                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
3279                                 continue;
3280                         cfg->speaker_pins[cfg->speaker_outs] = nid;
3281                         sequences_speaker[cfg->speaker_outs] = seq;
3282                         cfg->speaker_outs++;
3283                         break;
3284                 case AC_JACK_HP_OUT:
3285                         seq = get_defcfg_sequence(def_conf);
3286                         assoc = get_defcfg_association(def_conf);
3287                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
3288                                 continue;
3289                         cfg->hp_pins[cfg->hp_outs] = nid;
3290                         sequences_hp[cfg->hp_outs] = (assoc << 4) | seq;
3291                         cfg->hp_outs++;
3292                         break;
3293                 case AC_JACK_MIC_IN: {
3294                         int preferred, alt;
3295                         if (loc == AC_JACK_LOC_FRONT) {
3296                                 preferred = AUTO_PIN_FRONT_MIC;
3297                                 alt = AUTO_PIN_MIC;
3298                         } else {
3299                                 preferred = AUTO_PIN_MIC;
3300                                 alt = AUTO_PIN_FRONT_MIC;
3301                         }
3302                         if (!cfg->input_pins[preferred])
3303                                 cfg->input_pins[preferred] = nid;
3304                         else if (!cfg->input_pins[alt])
3305                                 cfg->input_pins[alt] = nid;
3306                         break;
3307                 }
3308                 case AC_JACK_LINE_IN:
3309                         if (loc == AC_JACK_LOC_FRONT)
3310                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
3311                         else
3312                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
3313                         break;
3314                 case AC_JACK_CD:
3315                         cfg->input_pins[AUTO_PIN_CD] = nid;
3316                         break;
3317                 case AC_JACK_AUX:
3318                         cfg->input_pins[AUTO_PIN_AUX] = nid;
3319                         break;
3320                 case AC_JACK_SPDIF_OUT:
3321                         cfg->dig_out_pin = nid;
3322                         break;
3323                 case AC_JACK_SPDIF_IN:
3324                         cfg->dig_in_pin = nid;
3325                         break;
3326                 }
3327         }
3328
3329         /* FIX-UP:
3330          * If no line-out is defined but multiple HPs are found,
3331          * some of them might be the real line-outs.
3332          */
3333         if (!cfg->line_outs && cfg->hp_outs > 1) {
3334                 int i = 0;
3335                 while (i < cfg->hp_outs) {
3336                         /* The real HPs should have the sequence 0x0f */
3337                         if ((sequences_hp[i] & 0x0f) == 0x0f) {
3338                                 i++;
3339                                 continue;
3340                         }
3341                         /* Move it to the line-out table */
3342                         cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i];
3343                         sequences_line_out[cfg->line_outs] = sequences_hp[i];
3344                         cfg->line_outs++;
3345                         cfg->hp_outs--;
3346                         memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
3347                                 sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
3348                         memmove(sequences_hp + i - 1, sequences_hp + i,
3349                                 sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
3350                 }
3351         }
3352
3353         /* sort by sequence */
3354         sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
3355                               cfg->line_outs);
3356         sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
3357                               cfg->speaker_outs);
3358         sort_pins_by_sequence(cfg->hp_pins, sequences_hp,
3359                               cfg->hp_outs);
3360
3361         /* if we have only one mic, make it AUTO_PIN_MIC */
3362         if (!cfg->input_pins[AUTO_PIN_MIC] &&
3363             cfg->input_pins[AUTO_PIN_FRONT_MIC]) {
3364                 cfg->input_pins[AUTO_PIN_MIC] =
3365                         cfg->input_pins[AUTO_PIN_FRONT_MIC];
3366                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = 0;
3367         }
3368         /* ditto for line-in */
3369         if (!cfg->input_pins[AUTO_PIN_LINE] &&
3370             cfg->input_pins[AUTO_PIN_FRONT_LINE]) {
3371                 cfg->input_pins[AUTO_PIN_LINE] =
3372                         cfg->input_pins[AUTO_PIN_FRONT_LINE];
3373                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = 0;
3374         }
3375
3376         /*
3377          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
3378          * as a primary output
3379          */
3380         if (!cfg->line_outs) {
3381                 if (cfg->speaker_outs) {
3382                         cfg->line_outs = cfg->speaker_outs;
3383                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
3384                                sizeof(cfg->speaker_pins));
3385                         cfg->speaker_outs = 0;
3386                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
3387                         cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
3388                 } else if (cfg->hp_outs) {
3389                         cfg->line_outs = cfg->hp_outs;
3390                         memcpy(cfg->line_out_pins, cfg->hp_pins,
3391                                sizeof(cfg->hp_pins));
3392                         cfg->hp_outs = 0;
3393                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
3394                         cfg->line_out_type = AUTO_PIN_HP_OUT;
3395                 }
3396         }
3397
3398         /* Reorder the surround channels
3399          * ALSA sequence is front/surr/clfe/side
3400          * HDA sequence is:
3401          *    4-ch: front/surr  =>  OK as it is
3402          *    6-ch: front/clfe/surr
3403          *    8-ch: front/clfe/rear/side|fc
3404          */
3405         switch (cfg->line_outs) {
3406         case 3:
3407         case 4:
3408                 nid = cfg->line_out_pins[1];
3409                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
3410                 cfg->line_out_pins[2] = nid;
3411                 break;
3412         }
3413
3414         /*
3415          * debug prints of the parsed results
3416          */
3417         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3418                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
3419                    cfg->line_out_pins[2], cfg->line_out_pins[3],
3420                    cfg->line_out_pins[4]);
3421         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3422                    cfg->speaker_outs, cfg->speaker_pins[0],
3423                    cfg->speaker_pins[1], cfg->speaker_pins[2],
3424                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
3425         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3426                    cfg->hp_outs, cfg->hp_pins[0],
3427                    cfg->hp_pins[1], cfg->hp_pins[2],
3428                    cfg->hp_pins[3], cfg->hp_pins[4]);
3429         snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
3430         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
3431                    " cd=0x%x, aux=0x%x\n",
3432                    cfg->input_pins[AUTO_PIN_MIC],
3433                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
3434                    cfg->input_pins[AUTO_PIN_LINE],
3435                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
3436                    cfg->input_pins[AUTO_PIN_CD],
3437                    cfg->input_pins[AUTO_PIN_AUX]);
3438
3439         return 0;
3440 }
3441 EXPORT_SYMBOL_HDA(snd_hda_parse_pin_def_config);
3442
3443 /* labels for input pins */
3444 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
3445         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
3446 };
3447 EXPORT_SYMBOL_HDA(auto_pin_cfg_labels);
3448
3449
3450 #ifdef CONFIG_PM
3451 /*
3452  * power management
3453  */
3454
3455 /**
3456  * snd_hda_suspend - suspend the codecs
3457  * @bus: the HDA bus
3458  * @state: suspsend state
3459  *
3460  * Returns 0 if successful.
3461  */
3462 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
3463 {
3464         struct hda_codec *codec;
3465
3466         list_for_each_entry(codec, &bus->codec_list, list) {
3467 #ifdef CONFIG_SND_HDA_POWER_SAVE
3468                 if (!codec->power_on)
3469                         continue;
3470 #endif
3471                 hda_call_codec_suspend(codec);
3472         }
3473         return 0;
3474 }
3475 EXPORT_SYMBOL_HDA(snd_hda_suspend);
3476
3477 /**
3478  * snd_hda_resume - resume the codecs
3479  * @bus: the HDA bus
3480  *
3481  * Returns 0 if successful.
3482  *
3483  * This fucntion is defined only when POWER_SAVE isn't set.
3484  * In the power-save mode, the codec is resumed dynamically.
3485  */
3486 int snd_hda_resume(struct hda_bus *bus)
3487 {
3488         struct hda_codec *codec;
3489
3490         list_for_each_entry(codec, &bus->codec_list, list) {
3491                 if (snd_hda_codec_needs_resume(codec))
3492                         hda_call_codec_resume(codec);
3493         }
3494         return 0;
3495 }
3496 EXPORT_SYMBOL_HDA(snd_hda_resume);
3497 #endif /* CONFIG_PM */
3498
3499 /*
3500  * generic arrays
3501  */
3502
3503 /* get a new element from the given array
3504  * if it exceeds the pre-allocated array size, re-allocate the array
3505  */
3506 void *snd_array_new(struct snd_array *array)
3507 {
3508         if (array->used >= array->alloced) {
3509                 int num = array->alloced + array->alloc_align;
3510                 void *nlist;
3511                 if (snd_BUG_ON(num >= 4096))
3512                         return NULL;
3513                 nlist = kcalloc(num + 1, array->elem_size, GFP_KERNEL);
3514                 if (!nlist)
3515                         return NULL;
3516                 if (array->list) {
3517                         memcpy(nlist, array->list,
3518                                array->elem_size * array->alloced);
3519                         kfree(array->list);
3520                 }
3521                 array->list = nlist;
3522                 array->alloced = num;
3523         }
3524         return snd_array_elem(array, array->used++);
3525 }
3526 EXPORT_SYMBOL_HDA(snd_array_new);
3527
3528 /* free the given array elements */
3529 void snd_array_free(struct snd_array *array)
3530 {
3531         kfree(array->list);
3532         array->used = 0;
3533         array->alloced = 0;
3534         array->list = NULL;
3535 }
3536 EXPORT_SYMBOL_HDA(snd_array_free);
3537
3538 /*
3539  * used by hda_proc.c and hda_eld.c
3540  */
3541 void snd_print_pcm_rates(int pcm, char *buf, int buflen)
3542 {
3543         static unsigned int rates[] = {
3544                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
3545                 96000, 176400, 192000, 384000
3546         };
3547         int i, j;
3548
3549         for (i = 0, j = 0; i < ARRAY_SIZE(rates); i++)
3550                 if (pcm & (1 << i))
3551                         j += snprintf(buf + j, buflen - j,  " %d", rates[i]);
3552
3553         buf[j] = '\0'; /* necessary when j == 0 */
3554 }
3555 EXPORT_SYMBOL_HDA(snd_print_pcm_rates);
3556
3557 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3558 {
3559         static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3560         int i, j;
3561
3562         for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3563                 if (pcm & (AC_SUPPCM_BITS_8 << i))
3564                         j += snprintf(buf + j, buflen - j,  " %d", bits[i]);
3565
3566         buf[j] = '\0'; /* necessary when j == 0 */
3567 }
3568 EXPORT_SYMBOL_HDA(snd_print_pcm_bits);
3569
3570 MODULE_DESCRIPTION("HDA codec core");
3571 MODULE_LICENSE("GPL");