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