git.oblomov.eu Git - 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         queue_work(bus->workq, &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->workq)
 441                 flush_workqueue(bus->workq);
 442         if (bus->unsol)
 443                 kfree(bus->unsol);
 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         if (bus->workq)
 450                 destroy_workqueue(bus->workq);
 451         kfree(bus);
 452         return 0;
 453 }
 454
 455 static int snd_hda_bus_dev_free(struct snd_device *device)
 456 {
 457         struct hda_bus *bus = device->device_data;
 458         bus->shutdown = 1;
 459         return snd_hda_bus_free(bus);
 460 }
 461
 462 #ifdef CONFIG_SND_HDA_HWDEP
 463 static int snd_hda_bus_dev_register(struct snd_device *device)
 464 {
 465         struct hda_bus *bus = device->device_data;
 466         struct hda_codec *codec;
 467         list_for_each_entry(codec, &bus->codec_list, list) {
 468                 snd_hda_hwdep_add_sysfs(codec);
 469         }
 470         return 0;
 471 }
 472 #else
 473 #define snd_hda_bus_dev_register        NULL
 474 #endif
 475
 476 /**
 477  * snd_hda_bus_new - create a HDA bus
 478  * @card: the card entry
 479  * @temp: the template for hda_bus information
 480  * @busp: the pointer to store the created bus instance
 481  *
 482  * Returns 0 if successful, or a negative error code.
 483  */
 484 int /*__devinit*/ snd_hda_bus_new(struct snd_card *card,
 485                               const struct hda_bus_template *temp,
 486                               struct hda_bus **busp)
 487 {
 488         struct hda_bus *bus;
 489         int err;
 490         char qname[8];
 491         static struct snd_device_ops dev_ops = {
 492                 .dev_register = snd_hda_bus_dev_register,
 493                 .dev_free = snd_hda_bus_dev_free,
 494         };
 495
 496         if (snd_BUG_ON(!temp))
 497                 return -EINVAL;
 498         if (snd_BUG_ON(!temp->ops.command || !temp->ops.get_response))
 499                 return -EINVAL;
 500
 501         if (busp)
 502                 *busp = NULL;
 503
 504         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 505         if (bus == NULL) {
 506                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 507                 return -ENOMEM;
 508         }
 509
 510         bus->card = card;
 511         bus->private_data = temp->private_data;
 512         bus->pci = temp->pci;
 513         bus->modelname = temp->modelname;
 514         bus->power_save = temp->power_save;
 515         bus->ops = temp->ops;
 516
 517         mutex_init(&bus->cmd_mutex);
 518         INIT_LIST_HEAD(&bus->codec_list);
 519
 520         snprintf(qname, sizeof(qname), "hda%d", card->number);
 521         bus->workq = create_workqueue(qname);
 522         if (!bus->workq) {
 523                 snd_printk(KERN_ERR "cannot create workqueue %s\n", qname);
 524                 kfree(bus);
 525                 return -ENOMEM;
 526         }
 527
 528         err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
 529         if (err < 0) {
 530                 snd_hda_bus_free(bus);
 531                 return err;
 532         }
 533         if (busp)
 534                 *busp = bus;
 535         return 0;
 536 }
 537 EXPORT_SYMBOL_HDA(snd_hda_bus_new);
 538
 539 #ifdef CONFIG_SND_HDA_GENERIC
 540 #define is_generic_config(codec) \
 541         (codec->modelname && !strcmp(codec->modelname, "generic"))
 542 #else
 543 #define is_generic_config(codec)        0
 544 #endif
 545
 546 #ifdef MODULE
 547 #define HDA_MODREQ_MAX_COUNT    2       /* two request_modules()'s */
 548 #else
 549 #define HDA_MODREQ_MAX_COUNT    0       /* all presets are statically linked */
 550 #endif
 551
 552 /*
 553  * find a matching codec preset
 554  */
 555 static const struct hda_codec_preset *
 556 find_codec_preset(struct hda_codec *codec)
 557 {
 558         struct hda_codec_preset_list *tbl;
 559         const struct hda_codec_preset *preset;
 560         int mod_requested = 0;
 561
 562         if (is_generic_config(codec))
 563                 return NULL; /* use the generic parser */
 564
 565  again:
 566         mutex_lock(&preset_mutex);
 567         list_for_each_entry(tbl, &hda_preset_tables, list) {
 568                 if (!try_module_get(tbl->owner)) {
 569                         snd_printk(KERN_ERR "hda_codec: cannot module_get\n");
 570                         continue;
 571                 }
 572                 for (preset = tbl->preset; preset->id; preset++) {
 573                         u32 mask = preset->mask;
 574                         if (preset->afg && preset->afg != codec->afg)
 575                                 continue;
 576                         if (preset->mfg && preset->mfg != codec->mfg)
 577                                 continue;
 578                         if (!mask)
 579                                 mask = ~0;
 580                         if (preset->id == (codec->vendor_id & mask) &&
 581                             (!preset->rev ||
 582                              preset->rev == codec->revision_id)) {
 583                                 mutex_unlock(&preset_mutex);
 584                                 codec->owner = tbl->owner;
 585                                 return preset;
 586                         }
 587                 }
 588                 module_put(tbl->owner);
 589         }
 590         mutex_unlock(&preset_mutex);
 591
 592         if (mod_requested < HDA_MODREQ_MAX_COUNT) {
 593                 char name[32];
 594                 if (!mod_requested)
 595                         snprintf(name, sizeof(name), "snd-hda-codec-id:%08x",
 596                                  codec->vendor_id);
 597                 else
 598                         snprintf(name, sizeof(name), "snd-hda-codec-id:%04x*",
 599                                  (codec->vendor_id >> 16) & 0xffff);
 600                 request_module(name);
 601                 mod_requested++;
 602                 goto again;
 603         }
 604         return NULL;
 605 }
 606
 607 /*
 608  * get_codec_name - store the codec name
 609  */
 610 static int get_codec_name(struct hda_codec *codec)
 611 {
 612         const struct hda_vendor_id *c;
 613         const char *vendor = NULL;
 614         u16 vendor_id = codec->vendor_id >> 16;
 615         char tmp[16], name[32];
 616
 617         for (c = hda_vendor_ids; c->id; c++) {
 618                 if (c->id == vendor_id) {
 619                         vendor = c->name;
 620                         break;
 621                 }
 622         }
 623         if (!vendor) {
 624                 sprintf(tmp, "Generic %04x", vendor_id);
 625                 vendor = tmp;
 626         }
 627         if (codec->preset && codec->preset->name)
 628                 snprintf(name, sizeof(name), "%s %s", vendor,
 629                          codec->preset->name);
 630         else
 631                 snprintf(name, sizeof(name), "%s ID %x", vendor,
 632                          codec->vendor_id & 0xffff);
 633         codec->name = kstrdup(name, GFP_KERNEL);
 634         if (!codec->name)
 635                 return -ENOMEM;
 636         return 0;
 637 }
 638
 639 /*
 640  * look for an AFG and MFG nodes
 641  */
 642 static void /*__devinit*/ setup_fg_nodes(struct hda_codec *codec)
 643 {
 644         int i, total_nodes;
 645         hda_nid_t nid;
 646
 647         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 648         for (i = 0; i < total_nodes; i++, nid++) {
 649                 unsigned int func;
 650                 func = snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE);
 651                 switch (func & 0xff) {
 652                 case AC_GRP_AUDIO_FUNCTION:
 653                         codec->afg = nid;
 654                         break;
 655                 case AC_GRP_MODEM_FUNCTION:
 656                         codec->mfg = nid;
 657                         break;
 658                 default:
 659                         break;
 660                 }
 661         }
 662 }
 663
 664 /*
 665  * read widget caps for each widget and store in cache
 666  */
 667 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 668 {
 669         int i;
 670         hda_nid_t nid;
 671
 672         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 673                                                  &codec->start_nid);
 674         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 675         if (!codec->wcaps)
 676                 return -ENOMEM;
 677         nid = codec->start_nid;
 678         for (i = 0; i < codec->num_nodes; i++, nid++)
 679                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 680                                                      AC_PAR_AUDIO_WIDGET_CAP);
 681         return 0;
 682 }
 683
 684
 685 static void init_hda_cache(struct hda_cache_rec *cache,
 686                            unsigned int record_size);
 687 static void free_hda_cache(struct hda_cache_rec *cache);
 688
 689 /*
 690  * codec destructor
 691  */
 692 static void snd_hda_codec_free(struct hda_codec *codec)
 693 {
 694         if (!codec)
 695                 return;
 696 #ifdef CONFIG_SND_HDA_POWER_SAVE
 697         cancel_delayed_work(&codec->power_work);
 698         flush_workqueue(codec->bus->workq);
 699 #endif
 700         list_del(&codec->list);
 701         snd_array_free(&codec->mixers);
 702         codec->bus->caddr_tbl[codec->addr] = NULL;
 703         if (codec->patch_ops.free)
 704                 codec->patch_ops.free(codec);
 705         module_put(codec->owner);
 706         free_hda_cache(&codec->amp_cache);
 707         free_hda_cache(&codec->cmd_cache);
 708         kfree(codec->name);
 709         kfree(codec->modelname);
 710         kfree(codec->wcaps);
 711         kfree(codec);
 712 }
 713
 714 /**
 715  * snd_hda_codec_new - create a HDA codec
 716  * @bus: the bus to assign
 717  * @codec_addr: the codec address
 718  * @codecp: the pointer to store the generated codec
 719  *
 720  * Returns 0 if successful, or a negative error code.
 721  */
 722 int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 723                                     int do_init, struct hda_codec **codecp)
 724 {
 725         struct hda_codec *codec;
 726         char component[31];
 727         int err;
 728
 729         if (snd_BUG_ON(!bus))
 730                 return -EINVAL;
 731         if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
 732                 return -EINVAL;
 733
 734         if (bus->caddr_tbl[codec_addr]) {
 735                 snd_printk(KERN_ERR "hda_codec: "
 736                            "address 0x%x is already occupied\n", codec_addr);
 737                 return -EBUSY;
 738         }
 739
 740         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 741         if (codec == NULL) {
 742                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 743                 return -ENOMEM;
 744         }
 745
 746         codec->bus = bus;
 747         codec->addr = codec_addr;
 748         mutex_init(&codec->spdif_mutex);
 749         mutex_init(&codec->control_mutex);
 750         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
 751         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
 752         snd_array_init(&codec->mixers, sizeof(struct snd_kcontrol *), 32);
 753         if (codec->bus->modelname) {
 754                 codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL);
 755                 if (!codec->modelname) {
 756                         snd_hda_codec_free(codec);
 757                         return -ENODEV;
 758                 }
 759         }
 760
 761 #ifdef CONFIG_SND_HDA_POWER_SAVE
 762         INIT_DELAYED_WORK(&codec->power_work, hda_power_work);
 763         /* snd_hda_codec_new() marks the codec as power-up, and leave it as is.
 764          * the caller has to power down appropriatley after initialization
 765          * phase.
 766          */
 767         hda_keep_power_on(codec);
 768 #endif
 769
 770         list_add_tail(&codec->list, &bus->codec_list);
 771         bus->caddr_tbl[codec_addr] = codec;
 772
 773         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 774                                               AC_PAR_VENDOR_ID);
 775         if (codec->vendor_id == -1)
 776                 /* read again, hopefully the access method was corrected
 777                  * in the last read...
 778                  */
 779                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 780                                                       AC_PAR_VENDOR_ID);
 781         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 782                                                  AC_PAR_SUBSYSTEM_ID);
 783         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 784                                                 AC_PAR_REV_ID);
 785
 786         setup_fg_nodes(codec);
 787         if (!codec->afg && !codec->mfg) {
 788                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 789                 snd_hda_codec_free(codec);
 790                 return -ENODEV;
 791         }
 792
 793         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 794                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 795                 snd_hda_codec_free(codec);
 796                 return -ENOMEM;
 797         }
 798
 799         if (!codec->subsystem_id) {
 800                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 801                 codec->subsystem_id =
 802                         snd_hda_codec_read(codec, nid, 0,
 803                                            AC_VERB_GET_SUBSYSTEM_ID, 0);
 804         }
 805         if (bus->modelname)
 806                 codec->modelname = kstrdup(bus->modelname, GFP_KERNEL);
 807
 808         if (do_init) {
 809                 err = snd_hda_codec_configure(codec);
 810                 if (err < 0) {
 811                         snd_hda_codec_free(codec);
 812                         return err;
 813                 }
 814         }
 815         snd_hda_codec_proc_new(codec);
 816
 817         snd_hda_create_hwdep(codec);
 818
 819         sprintf(component, "HDA:%08x,%08x,%08x", codec->vendor_id,
 820                 codec->subsystem_id, codec->revision_id);
 821         snd_component_add(codec->bus->card, component);
 822
 823         if (codecp)
 824                 *codecp = codec;
 825         return 0;
 826 }
 827 EXPORT_SYMBOL_HDA(snd_hda_codec_new);
 828
 829 int snd_hda_codec_configure(struct hda_codec *codec)
 830 {
 831         int err;
 832
 833         codec->preset = find_codec_preset(codec);
 834         if (!codec->name) {
 835                 err = get_codec_name(codec);
 836                 if (err < 0)
 837                         return err;
 838         }
 839         /* audio codec should override the mixer name */
 840         if (codec->afg || !*codec->bus->card->mixername)
 841                 strlcpy(codec->bus->card->mixername, codec->name,
 842                         sizeof(codec->bus->card->mixername));
 843
 844         if (is_generic_config(codec)) {
 845                 err = snd_hda_parse_generic_codec(codec);
 846                 goto patched;
 847         }
 848         if (codec->preset && codec->preset->patch) {
 849                 err = codec->preset->patch(codec);
 850                 goto patched;
 851         }
 852
 853         /* call the default parser */
 854         err = snd_hda_parse_generic_codec(codec);
 855         if (err < 0)
 856                 printk(KERN_ERR "hda-codec: No codec parser is available\n");
 857
 858  patched:
 859         if (!err && codec->patch_ops.unsol_event)
 860                 err = init_unsol_queue(codec->bus);
 861         return err;
 862 }
 863
 864 /**
 865  * snd_hda_codec_setup_stream - set up the codec for streaming
 866  * @codec: the CODEC to set up
 867  * @nid: the NID to set up
 868  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 869  * @channel_id: channel id to pass, zero based.
 870  * @format: stream format.
 871  */
 872 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 873                                 u32 stream_tag,
 874                                 int channel_id, int format)
 875 {
 876         if (!nid)
 877                 return;
 878
 879         snd_printdd("hda_codec_setup_stream: "
 880                     "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 881                     nid, stream_tag, channel_id, format);
 882         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 883                             (stream_tag << 4) | channel_id);
 884         msleep(1);
 885         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 886 }
 887 EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
 888
 889 void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
 890 {
 891         if (!nid)
 892                 return;
 893
 894         snd_printdd("hda_codec_cleanup_stream: NID=0x%x\n", nid);
 895         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0);
 896 #if 0 /* keep the format */
 897         msleep(1);
 898         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0);
 899 #endif
 900 }
 901 EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
 902
 903 /*
 904  * amp access functions
 905  */
 906
 907 /* FIXME: more better hash key? */
 908 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 909 #define INFO_AMP_CAPS   (1<<0)
 910 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 911
 912 /* initialize the hash table */
 913 static void /*__devinit*/ init_hda_cache(struct hda_cache_rec *cache,
 914                                      unsigned int record_size)
 915 {
 916         memset(cache, 0, sizeof(*cache));
 917         memset(cache->hash, 0xff, sizeof(cache->hash));
 918         snd_array_init(&cache->buf, record_size, 64);
 919 }
 920
 921 static void free_hda_cache(struct hda_cache_rec *cache)
 922 {
 923         snd_array_free(&cache->buf);
 924 }
 925
 926 /* query the hash.  allocate an entry if not found. */
 927 static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
 928                                               u32 key)
 929 {
 930         u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
 931         u16 cur = cache->hash[idx];
 932         struct hda_cache_head *info;
 933
 934         while (cur != 0xffff) {
 935                 info = snd_array_elem(&cache->buf, cur);
 936                 if (info->key == key)
 937                         return info;
 938                 cur = info->next;
 939         }
 940
 941         /* add a new hash entry */
 942         info = snd_array_new(&cache->buf);
 943         if (!info)
 944                 return NULL;
 945         cur = snd_array_index(&cache->buf, info);
 946         info->key = key;
 947         info->val = 0;
 948         info->next = cache->hash[idx];
 949         cache->hash[idx] = cur;
 950
 951         return info;
 952 }
 953
 954 /* query and allocate an amp hash entry */
 955 static inline struct hda_amp_info *
 956 get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 957 {
 958         return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
 959 }
 960
 961 /*
 962  * query AMP capabilities for the given widget and direction
 963  */
 964 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 965 {
 966         struct hda_amp_info *info;
 967
 968         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 969         if (!info)
 970                 return 0;
 971         if (!(info->head.val & INFO_AMP_CAPS)) {
 972                 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 973                         nid = codec->afg;
 974                 info->amp_caps = snd_hda_param_read(codec, nid,
 975                                                     direction == HDA_OUTPUT ?
 976                                                     AC_PAR_AMP_OUT_CAP :
 977                                                     AC_PAR_AMP_IN_CAP);
 978                 if (info->amp_caps)
 979                         info->head.val |= INFO_AMP_CAPS;
 980         }
 981         return info->amp_caps;
 982 }
 983 EXPORT_SYMBOL_HDA(query_amp_caps);
 984
 985 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 986                               unsigned int caps)
 987 {
 988         struct hda_amp_info *info;
 989
 990         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0));
 991         if (!info)
 992                 return -EINVAL;
 993         info->amp_caps = caps;
 994         info->head.val |= INFO_AMP_CAPS;
 995         return 0;
 996 }
 997 EXPORT_SYMBOL_HDA(snd_hda_override_amp_caps);
 998
 999 /*
1000  * read the current volume to info
1001  * if the cache exists, read the cache value.
1002  */
1003 static unsigned int get_vol_mute(struct hda_codec *codec,
1004                                  struct hda_amp_info *info, hda_nid_t nid,
1005                                  int ch, int direction, int index)
1006 {
1007         u32 val, parm;
1008
1009         if (info->head.val & INFO_AMP_VOL(ch))
1010                 return info->vol[ch];
1011
1012         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
1013         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
1014         parm |= index;
1015         val = snd_hda_codec_read(codec, nid, 0,
1016                                  AC_VERB_GET_AMP_GAIN_MUTE, parm);
1017         info->vol[ch] = val & 0xff;
1018         info->head.val |= INFO_AMP_VOL(ch);
1019         return info->vol[ch];
1020 }
1021
1022 /*
1023  * write the current volume in info to the h/w and update the cache
1024  */
1025 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
1026                          hda_nid_t nid, int ch, int direction, int index,
1027                          int val)
1028 {
1029         u32 parm;
1030
1031         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
1032         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
1033         parm |= index << AC_AMP_SET_INDEX_SHIFT;
1034         parm |= val;
1035         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
1036         info->vol[ch] = val;
1037 }
1038
1039 /*
1040  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
1041  */
1042 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
1043                            int direction, int index)
1044 {
1045         struct hda_amp_info *info;
1046         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
1047         if (!info)
1048                 return 0;
1049         return get_vol_mute(codec, info, nid, ch, direction, index);
1050 }
1051 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_read);
1052
1053 /*
1054  * update the AMP value, mask = bit mask to set, val = the value
1055  */
1056 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
1057                              int direction, int idx, int mask, int val)
1058 {
1059         struct hda_amp_info *info;
1060
1061         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
1062         if (!info)
1063                 return 0;
1064         val &= mask;
1065         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
1066         if (info->vol[ch] == val)
1067                 return 0;
1068         put_vol_mute(codec, info, nid, ch, direction, idx, val);
1069         return 1;
1070 }
1071 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_update);
1072
1073 /*
1074  * update the AMP stereo with the same mask and value
1075  */
1076 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
1077                              int direction, int idx, int mask, int val)
1078 {
1079         int ch, ret = 0;
1080         for (ch = 0; ch < 2; ch++)
1081                 ret |= snd_hda_codec_amp_update(codec, nid, ch, direction,
1082                                                 idx, mask, val);
1083         return ret;
1084 }
1085 EXPORT_SYMBOL_HDA(snd_hda_codec_amp_stereo);
1086
1087 #ifdef SND_HDA_NEEDS_RESUME
1088 /* resume the all amp commands from the cache */
1089 void snd_hda_codec_resume_amp(struct hda_codec *codec)
1090 {
1091         struct hda_amp_info *buffer = codec->amp_cache.buf.list;
1092         int i;
1093
1094         for (i = 0; i < codec->amp_cache.buf.used; i++, buffer++) {
1095                 u32 key = buffer->head.key;
1096                 hda_nid_t nid;
1097                 unsigned int idx, dir, ch;
1098                 if (!key)
1099                         continue;
1100                 nid = key & 0xff;
1101                 idx = (key >> 16) & 0xff;
1102                 dir = (key >> 24) & 0xff;
1103                 for (ch = 0; ch < 2; ch++) {
1104                         if (!(buffer->head.val & INFO_AMP_VOL(ch)))
1105                                 continue;
1106                         put_vol_mute(codec, buffer, nid, ch, dir, idx,
1107                                      buffer->vol[ch]);
1108                 }
1109         }
1110 }
1111 EXPORT_SYMBOL_HDA(snd_hda_codec_resume_amp);
1112 #endif /* SND_HDA_NEEDS_RESUME */
1113
1114 /* volume */
1115 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
1116                                   struct snd_ctl_elem_info *uinfo)
1117 {
1118         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1119         u16 nid = get_amp_nid(kcontrol);
1120         u8 chs = get_amp_channels(kcontrol);
1121         int dir = get_amp_direction(kcontrol);
1122         u32 caps;
1123
1124         caps = query_amp_caps(codec, nid, dir);
1125         /* num steps */
1126         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1127         if (!caps) {
1128                 printk(KERN_WARNING "hda_codec: "
1129                        "num_steps = 0 for NID=0x%x (ctl = %s)\n", nid,
1130                        kcontrol->id.name);
1131                 return -EINVAL;
1132         }
1133         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1134         uinfo->count = chs == 3 ? 2 : 1;
1135         uinfo->value.integer.min = 0;
1136         uinfo->value.integer.max = caps;
1137         return 0;
1138 }
1139 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_info);
1140
1141 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
1142                                  struct snd_ctl_elem_value *ucontrol)
1143 {
1144         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1145         hda_nid_t nid = get_amp_nid(kcontrol);
1146         int chs = get_amp_channels(kcontrol);
1147         int dir = get_amp_direction(kcontrol);
1148         int idx = get_amp_index(kcontrol);
1149         long *valp = ucontrol->value.integer.value;
1150
1151         if (chs & 1)
1152                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx)
1153                         & HDA_AMP_VOLMASK;
1154         if (chs & 2)
1155                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx)
1156                         & HDA_AMP_VOLMASK;
1157         return 0;
1158 }
1159 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_get);
1160
1161 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
1162                                  struct snd_ctl_elem_value *ucontrol)
1163 {
1164         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1165         hda_nid_t nid = get_amp_nid(kcontrol);
1166         int chs = get_amp_channels(kcontrol);
1167         int dir = get_amp_direction(kcontrol);
1168         int idx = get_amp_index(kcontrol);
1169         long *valp = ucontrol->value.integer.value;
1170         int change = 0;
1171
1172         snd_hda_power_up(codec);
1173         if (chs & 1) {
1174                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1175                                                   0x7f, *valp);
1176                 valp++;
1177         }
1178         if (chs & 2)
1179                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1180                                                    0x7f, *valp);
1181         snd_hda_power_down(codec);
1182         return change;
1183 }
1184 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_put);
1185
1186 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1187                           unsigned int size, unsigned int __user *_tlv)
1188 {
1189         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1190         hda_nid_t nid = get_amp_nid(kcontrol);
1191         int dir = get_amp_direction(kcontrol);
1192         u32 caps, val1, val2;
1193
1194         if (size < 4 * sizeof(unsigned int))
1195                 return -ENOMEM;
1196         caps = query_amp_caps(codec, nid, dir);
1197         val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1198         val2 = (val2 + 1) * 25;
1199         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
1200         val1 = ((int)val1) * ((int)val2);
1201         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
1202                 return -EFAULT;
1203         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
1204                 return -EFAULT;
1205         if (put_user(val1, _tlv + 2))
1206                 return -EFAULT;
1207         if (put_user(val2, _tlv + 3))
1208                 return -EFAULT;
1209         return 0;
1210 }
1211 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_tlv);
1212
1213 /*
1214  * set (static) TLV for virtual master volume; recalculated as max 0dB
1215  */
1216 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
1217                              unsigned int *tlv)
1218 {
1219         u32 caps;
1220         int nums, step;
1221
1222         caps = query_amp_caps(codec, nid, dir);
1223         nums = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
1224         step = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
1225         step = (step + 1) * 25;
1226         tlv[0] = SNDRV_CTL_TLVT_DB_SCALE;
1227         tlv[1] = 2 * sizeof(unsigned int);
1228         tlv[2] = -nums * step;
1229         tlv[3] = step;
1230 }
1231 EXPORT_SYMBOL_HDA(snd_hda_set_vmaster_tlv);
1232
1233 /* find a mixer control element with the given name */
1234 static struct snd_kcontrol *
1235 _snd_hda_find_mixer_ctl(struct hda_codec *codec,
1236                         const char *name, int idx)
1237 {
1238         struct snd_ctl_elem_id id;
1239         memset(&id, 0, sizeof(id));
1240         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1241         id.index = idx;
1242         strcpy(id.name, name);
1243         return snd_ctl_find_id(codec->bus->card, &id);
1244 }
1245
1246 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
1247                                             const char *name)
1248 {
1249         return _snd_hda_find_mixer_ctl(codec, name, 0);
1250 }
1251 EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl);
1252
1253 /* Add a control element and assign to the codec */
1254 int snd_hda_ctl_add(struct hda_codec *codec, struct snd_kcontrol *kctl)
1255 {
1256         int err;
1257         struct snd_kcontrol **knewp;
1258
1259         err = snd_ctl_add(codec->bus->card, kctl);
1260         if (err < 0)
1261                 return err;
1262         knewp = snd_array_new(&codec->mixers);
1263         if (!knewp)
1264                 return -ENOMEM;
1265         *knewp = kctl;
1266         return 0;
1267 }
1268 EXPORT_SYMBOL_HDA(snd_hda_ctl_add);
1269
1270 #ifdef CONFIG_SND_HDA_RECONFIG
1271 /* Clear all controls assigned to the given codec */
1272 void snd_hda_ctls_clear(struct hda_codec *codec)
1273 {
1274         int i;
1275         struct snd_kcontrol **kctls = codec->mixers.list;
1276         for (i = 0; i < codec->mixers.used; i++)
1277                 snd_ctl_remove(codec->bus->card, kctls[i]);
1278         snd_array_free(&codec->mixers);
1279 }
1280
1281 void snd_hda_codec_reset(struct hda_codec *codec)
1282 {
1283         int i;
1284
1285 #ifdef CONFIG_SND_HDA_POWER_SAVE
1286         cancel_delayed_work(&codec->power_work);
1287         flush_workqueue(codec->bus->workq);
1288 #endif
1289         snd_hda_ctls_clear(codec);
1290         /* relase PCMs */
1291         for (i = 0; i < codec->num_pcms; i++) {
1292                 if (codec->pcm_info[i].pcm) {
1293                         snd_device_free(codec->bus->card,
1294                                         codec->pcm_info[i].pcm);
1295                         clear_bit(codec->pcm_info[i].device,
1296                                   codec->bus->pcm_dev_bits);
1297                 }
1298         }
1299         if (codec->patch_ops.free)
1300                 codec->patch_ops.free(codec);
1301         codec->proc_widget_hook = NULL;
1302         codec->spec = NULL;
1303         free_hda_cache(&codec->amp_cache);
1304         free_hda_cache(&codec->cmd_cache);
1305         init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
1306         init_hda_cache(&codec->cmd_cache, sizeof(struct hda_cache_head));
1307         codec->num_pcms = 0;
1308         codec->pcm_info = NULL;
1309         codec->preset = NULL;
1310         module_put(codec->owner);
1311         codec->owner = NULL;
1312 }
1313 #endif /* CONFIG_SND_HDA_RECONFIG */
1314
1315 /* create a virtual master control and add slaves */
1316 int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
1317                         unsigned int *tlv, const char **slaves)
1318 {
1319         struct snd_kcontrol *kctl;
1320         const char **s;
1321         int err;
1322
1323         for (s = slaves; *s && !snd_hda_find_mixer_ctl(codec, *s); s++)
1324                 ;
1325         if (!*s) {
1326                 snd_printdd("No slave found for %s\n", name);
1327                 return 0;
1328         }
1329         kctl = snd_ctl_make_virtual_master(name, tlv);
1330         if (!kctl)
1331                 return -ENOMEM;
1332         err = snd_hda_ctl_add(codec, kctl);
1333         if (err < 0)
1334                 return err;
1335
1336         for (s = slaves; *s; s++) {
1337                 struct snd_kcontrol *sctl;
1338
1339                 sctl = snd_hda_find_mixer_ctl(codec, *s);
1340                 if (!sctl) {
1341                         snd_printdd("Cannot find slave %s, skipped\n", *s);
1342                         continue;
1343                 }
1344                 err = snd_ctl_add_slave(kctl, sctl);
1345                 if (err < 0)
1346                         return err;
1347         }
1348         return 0;
1349 }
1350 EXPORT_SYMBOL_HDA(snd_hda_add_vmaster);
1351
1352 /* switch */
1353 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
1354                                   struct snd_ctl_elem_info *uinfo)
1355 {
1356         int chs = get_amp_channels(kcontrol);
1357
1358         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1359         uinfo->count = chs == 3 ? 2 : 1;
1360         uinfo->value.integer.min = 0;
1361         uinfo->value.integer.max = 1;
1362         return 0;
1363 }
1364 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_info);
1365
1366 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
1367                                  struct snd_ctl_elem_value *ucontrol)
1368 {
1369         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1370         hda_nid_t nid = get_amp_nid(kcontrol);
1371         int chs = get_amp_channels(kcontrol);
1372         int dir = get_amp_direction(kcontrol);
1373         int idx = get_amp_index(kcontrol);
1374         long *valp = ucontrol->value.integer.value;
1375
1376         if (chs & 1)
1377                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
1378                            HDA_AMP_MUTE) ? 0 : 1;
1379         if (chs & 2)
1380                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
1381                          HDA_AMP_MUTE) ? 0 : 1;
1382         return 0;
1383 }
1384 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_get);
1385
1386 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
1387                                  struct snd_ctl_elem_value *ucontrol)
1388 {
1389         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1390         hda_nid_t nid = get_amp_nid(kcontrol);
1391         int chs = get_amp_channels(kcontrol);
1392         int dir = get_amp_direction(kcontrol);
1393         int idx = get_amp_index(kcontrol);
1394         long *valp = ucontrol->value.integer.value;
1395         int change = 0;
1396
1397         snd_hda_power_up(codec);
1398         if (chs & 1) {
1399                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
1400                                                   HDA_AMP_MUTE,
1401                                                   *valp ? 0 : HDA_AMP_MUTE);
1402                 valp++;
1403         }
1404         if (chs & 2)
1405                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
1406                                                    HDA_AMP_MUTE,
1407                                                    *valp ? 0 : HDA_AMP_MUTE);
1408 #ifdef CONFIG_SND_HDA_POWER_SAVE
1409         if (codec->patch_ops.check_power_status)
1410                 codec->patch_ops.check_power_status(codec, nid);
1411 #endif
1412         snd_hda_power_down(codec);
1413         return change;
1414 }
1415 EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_put);
1416
1417 /*
1418  * bound volume controls
1419  *
1420  * bind multiple volumes (# indices, from 0)
1421  */
1422
1423 #define AMP_VAL_IDX_SHIFT       19
1424 #define AMP_VAL_IDX_MASK        (0x0f<<19)
1425
1426 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
1427                                   struct snd_ctl_elem_value *ucontrol)
1428 {
1429         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1430         unsigned long pval;
1431         int err;
1432
1433         mutex_lock(&codec->control_mutex);
1434         pval = kcontrol->private_value;
1435         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
1436         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
1437         kcontrol->private_value = pval;
1438         mutex_unlock(&codec->control_mutex);
1439         return err;
1440 }
1441 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_get);
1442
1443 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
1444                                   struct snd_ctl_elem_value *ucontrol)
1445 {
1446         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1447         unsigned long pval;
1448         int i, indices, err = 0, change = 0;
1449
1450         mutex_lock(&codec->control_mutex);
1451         pval = kcontrol->private_value;
1452         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
1453         for (i = 0; i < indices; i++) {
1454                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
1455                         (i << AMP_VAL_IDX_SHIFT);
1456                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
1457                 if (err < 0)
1458                         break;
1459                 change |= err;
1460         }
1461         kcontrol->private_value = pval;
1462         mutex_unlock(&codec->control_mutex);
1463         return err < 0 ? err : change;
1464 }
1465 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_put);
1466
1467 /*
1468  * generic bound volume/swtich controls
1469  */
1470 int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
1471                                  struct snd_ctl_elem_info *uinfo)
1472 {
1473         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1474         struct hda_bind_ctls *c;
1475         int err;
1476
1477         mutex_lock(&codec->control_mutex);
1478         c = (struct hda_bind_ctls *)kcontrol->private_value;
1479         kcontrol->private_value = *c->values;
1480         err = c->ops->info(kcontrol, uinfo);
1481         kcontrol->private_value = (long)c;
1482         mutex_unlock(&codec->control_mutex);
1483         return err;
1484 }
1485 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_info);
1486
1487 int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
1488                                 struct snd_ctl_elem_value *ucontrol)
1489 {
1490         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1491         struct hda_bind_ctls *c;
1492         int err;
1493
1494         mutex_lock(&codec->control_mutex);
1495         c = (struct hda_bind_ctls *)kcontrol->private_value;
1496         kcontrol->private_value = *c->values;
1497         err = c->ops->get(kcontrol, ucontrol);
1498         kcontrol->private_value = (long)c;
1499         mutex_unlock(&codec->control_mutex);
1500         return err;
1501 }
1502 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_get);
1503
1504 int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
1505                                 struct snd_ctl_elem_value *ucontrol)
1506 {
1507         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1508         struct hda_bind_ctls *c;
1509         unsigned long *vals;
1510         int err = 0, change = 0;
1511
1512         mutex_lock(&codec->control_mutex);
1513         c = (struct hda_bind_ctls *)kcontrol->private_value;
1514         for (vals = c->values; *vals; vals++) {
1515                 kcontrol->private_value = *vals;
1516                 err = c->ops->put(kcontrol, ucontrol);
1517                 if (err < 0)
1518                         break;
1519                 change |= err;
1520         }
1521         kcontrol->private_value = (long)c;
1522         mutex_unlock(&codec->control_mutex);
1523         return err < 0 ? err : change;
1524 }
1525 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_put);
1526
1527 int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1528                            unsigned int size, unsigned int __user *tlv)
1529 {
1530         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1531         struct hda_bind_ctls *c;
1532         int err;
1533
1534         mutex_lock(&codec->control_mutex);
1535         c = (struct hda_bind_ctls *)kcontrol->private_value;
1536         kcontrol->private_value = *c->values;
1537         err = c->ops->tlv(kcontrol, op_flag, size, tlv);
1538         kcontrol->private_value = (long)c;
1539         mutex_unlock(&codec->control_mutex);
1540         return err;
1541 }
1542 EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_tlv);
1543
1544 struct hda_ctl_ops snd_hda_bind_vol = {
1545         .info = snd_hda_mixer_amp_volume_info,
1546         .get = snd_hda_mixer_amp_volume_get,
1547         .put = snd_hda_mixer_amp_volume_put,
1548         .tlv = snd_hda_mixer_amp_tlv
1549 };
1550 EXPORT_SYMBOL_HDA(snd_hda_bind_vol);
1551
1552 struct hda_ctl_ops snd_hda_bind_sw = {
1553         .info = snd_hda_mixer_amp_switch_info,
1554         .get = snd_hda_mixer_amp_switch_get,
1555         .put = snd_hda_mixer_amp_switch_put,
1556         .tlv = snd_hda_mixer_amp_tlv
1557 };
1558 EXPORT_SYMBOL_HDA(snd_hda_bind_sw);
1559
1560 /*
1561  * SPDIF out controls
1562  */
1563
1564 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
1565                                    struct snd_ctl_elem_info *uinfo)
1566 {
1567         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1568         uinfo->count = 1;
1569         return 0;
1570 }
1571
1572 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
1573                                    struct snd_ctl_elem_value *ucontrol)
1574 {
1575         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1576                                            IEC958_AES0_NONAUDIO |
1577                                            IEC958_AES0_CON_EMPHASIS_5015 |
1578                                            IEC958_AES0_CON_NOT_COPYRIGHT;
1579         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
1580                                            IEC958_AES1_CON_ORIGINAL;
1581         return 0;
1582 }
1583
1584 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
1585                                    struct snd_ctl_elem_value *ucontrol)
1586 {
1587         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1588                                            IEC958_AES0_NONAUDIO |
1589                                            IEC958_AES0_PRO_EMPHASIS_5015;
1590         return 0;
1591 }
1592
1593 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
1594                                      struct snd_ctl_elem_value *ucontrol)
1595 {
1596         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1597
1598         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1599         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1600         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1601         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1602
1603         return 0;
1604 }
1605
1606 /* convert from SPDIF status bits to HDA SPDIF bits
1607  * bit 0 (DigEn) is always set zero (to be filled later)
1608  */
1609 static unsigned short convert_from_spdif_status(unsigned int sbits)
1610 {
1611         unsigned short val = 0;
1612
1613         if (sbits & IEC958_AES0_PROFESSIONAL)
1614                 val |= AC_DIG1_PROFESSIONAL;
1615         if (sbits & IEC958_AES0_NONAUDIO)
1616                 val |= AC_DIG1_NONAUDIO;
1617         if (sbits & IEC958_AES0_PROFESSIONAL) {
1618                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
1619                     IEC958_AES0_PRO_EMPHASIS_5015)
1620                         val |= AC_DIG1_EMPHASIS;
1621         } else {
1622                 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
1623                     IEC958_AES0_CON_EMPHASIS_5015)
1624                         val |= AC_DIG1_EMPHASIS;
1625                 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1626                         val |= AC_DIG1_COPYRIGHT;
1627                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1628                         val |= AC_DIG1_LEVEL;
1629                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1630         }
1631         return val;
1632 }
1633
1634 /* convert to SPDIF status bits from HDA SPDIF bits
1635  */
1636 static unsigned int convert_to_spdif_status(unsigned short val)
1637 {
1638         unsigned int sbits = 0;
1639
1640         if (val & AC_DIG1_NONAUDIO)
1641                 sbits |= IEC958_AES0_NONAUDIO;
1642         if (val & AC_DIG1_PROFESSIONAL)
1643                 sbits |= IEC958_AES0_PROFESSIONAL;
1644         if (sbits & IEC958_AES0_PROFESSIONAL) {
1645                 if (sbits & AC_DIG1_EMPHASIS)
1646                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1647         } else {
1648                 if (val & AC_DIG1_EMPHASIS)
1649                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1650                 if (!(val & AC_DIG1_COPYRIGHT))
1651                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1652                 if (val & AC_DIG1_LEVEL)
1653                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1654                 sbits |= val & (0x7f << 8);
1655         }
1656         return sbits;
1657 }
1658
1659 /* set digital convert verbs both for the given NID and its slaves */
1660 static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
1661                         int verb, int val)
1662 {
1663         hda_nid_t *d;
1664
1665         snd_hda_codec_write_cache(codec, nid, 0, verb, val);
1666         d = codec->slave_dig_outs;
1667         if (!d)
1668                 return;
1669         for (; *d; d++)
1670                 snd_hda_codec_write_cache(codec, *d, 0, verb, val);
1671 }
1672
1673 static inline void set_dig_out_convert(struct hda_codec *codec, hda_nid_t nid,
1674                                        int dig1, int dig2)
1675 {
1676         if (dig1 != -1)
1677                 set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_1, dig1);
1678         if (dig2 != -1)
1679                 set_dig_out(codec, nid, AC_VERB_SET_DIGI_CONVERT_2, dig2);
1680 }
1681
1682 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
1683                                      struct snd_ctl_elem_value *ucontrol)
1684 {
1685         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1686         hda_nid_t nid = kcontrol->private_value;
1687         unsigned short val;
1688         int change;
1689
1690         mutex_lock(&codec->spdif_mutex);
1691         codec->spdif_status = ucontrol->value.iec958.status[0] |
1692                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1693                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1694                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1695         val = convert_from_spdif_status(codec->spdif_status);
1696         val |= codec->spdif_ctls & 1;
1697         change = codec->spdif_ctls != val;
1698         codec->spdif_ctls = val;
1699
1700         if (change)
1701                 set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
1702
1703         mutex_unlock(&codec->spdif_mutex);
1704         return change;
1705 }
1706
1707 #define snd_hda_spdif_out_switch_info   snd_ctl_boolean_mono_info
1708
1709 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
1710                                         struct snd_ctl_elem_value *ucontrol)
1711 {
1712         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1713
1714         ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
1715         return 0;
1716 }
1717
1718 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
1719                                         struct snd_ctl_elem_value *ucontrol)
1720 {
1721         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1722         hda_nid_t nid = kcontrol->private_value;
1723         unsigned short val;
1724         int change;
1725
1726         mutex_lock(&codec->spdif_mutex);
1727         val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
1728         if (ucontrol->value.integer.value[0])
1729                 val |= AC_DIG1_ENABLE;
1730         change = codec->spdif_ctls != val;
1731         if (change) {
1732                 codec->spdif_ctls = val;
1733                 set_dig_out_convert(codec, nid, val & 0xff, -1);
1734                 /* unmute amp switch (if any) */
1735                 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
1736                     (val & AC_DIG1_ENABLE))
1737                         snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
1738                                                  HDA_AMP_MUTE, 0);
1739         }
1740         mutex_unlock(&codec->spdif_mutex);
1741         return change;
1742 }
1743
1744 static struct snd_kcontrol_new dig_mixes[] = {
1745         {
1746                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1747                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1748                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1749                 .info = snd_hda_spdif_mask_info,
1750                 .get = snd_hda_spdif_cmask_get,
1751         },
1752         {
1753                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1754                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1755                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1756                 .info = snd_hda_spdif_mask_info,
1757                 .get = snd_hda_spdif_pmask_get,
1758         },
1759         {
1760                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1761                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1762                 .info = snd_hda_spdif_mask_info,
1763                 .get = snd_hda_spdif_default_get,
1764                 .put = snd_hda_spdif_default_put,
1765         },
1766         {
1767                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1768                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1769                 .info = snd_hda_spdif_out_switch_info,
1770                 .get = snd_hda_spdif_out_switch_get,
1771                 .put = snd_hda_spdif_out_switch_put,
1772         },
1773         { } /* end */
1774 };
1775
1776 #define SPDIF_MAX_IDX   4       /* 4 instances should be enough to probe */
1777
1778 /**
1779  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1780  * @codec: the HDA codec
1781  * @nid: audio out widget NID
1782  *
1783  * Creates controls related with the SPDIF output.
1784  * Called from each patch supporting the SPDIF out.
1785  *
1786  * Returns 0 if successful, or a negative error code.
1787  */
1788 int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
1789 {
1790         int err;
1791         struct snd_kcontrol *kctl;
1792         struct snd_kcontrol_new *dig_mix;
1793         int idx;
1794
1795         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1796                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Playback Switch",
1797                                              idx))
1798                         break;
1799         }
1800         if (idx >= SPDIF_MAX_IDX) {
1801                 printk(KERN_ERR "hda_codec: too many IEC958 outputs\n");
1802                 return -EBUSY;
1803         }
1804         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1805                 kctl = snd_ctl_new1(dig_mix, codec);
1806                 if (!kctl)
1807                         return -ENOMEM;
1808                 kctl->id.index = idx;
1809                 kctl->private_value = nid;
1810                 err = snd_hda_ctl_add(codec, kctl);
1811                 if (err < 0)
1812                         return err;
1813         }
1814         codec->spdif_ctls =
1815                 snd_hda_codec_read(codec, nid, 0,
1816                                    AC_VERB_GET_DIGI_CONVERT_1, 0);
1817         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1818         return 0;
1819 }
1820 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_out_ctls);
1821
1822 /*
1823  * SPDIF sharing with analog output
1824  */
1825 static int spdif_share_sw_get(struct snd_kcontrol *kcontrol,
1826                               struct snd_ctl_elem_value *ucontrol)
1827 {
1828         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1829         ucontrol->value.integer.value[0] = mout->share_spdif;
1830         return 0;
1831 }
1832
1833 static int spdif_share_sw_put(struct snd_kcontrol *kcontrol,
1834                               struct snd_ctl_elem_value *ucontrol)
1835 {
1836         struct hda_multi_out *mout = snd_kcontrol_chip(kcontrol);
1837         mout->share_spdif = !!ucontrol->value.integer.value[0];
1838         return 0;
1839 }
1840
1841 static struct snd_kcontrol_new spdif_share_sw = {
1842         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1843         .name = "IEC958 Default PCM Playback Switch",
1844         .info = snd_ctl_boolean_mono_info,
1845         .get = spdif_share_sw_get,
1846         .put = spdif_share_sw_put,
1847 };
1848
1849 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
1850                                   struct hda_multi_out *mout)
1851 {
1852         if (!mout->dig_out_nid)
1853                 return 0;
1854         /* ATTENTION: here mout is passed as private_data, instead of codec */
1855         return snd_hda_ctl_add(codec,
1856                            snd_ctl_new1(&spdif_share_sw, mout));
1857 }
1858 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_share_sw);
1859
1860 /*
1861  * SPDIF input
1862  */
1863
1864 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1865
1866 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
1867                                        struct snd_ctl_elem_value *ucontrol)
1868 {
1869         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1870
1871         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1872         return 0;
1873 }
1874
1875 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
1876                                        struct snd_ctl_elem_value *ucontrol)
1877 {
1878         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1879         hda_nid_t nid = kcontrol->private_value;
1880         unsigned int val = !!ucontrol->value.integer.value[0];
1881         int change;
1882
1883         mutex_lock(&codec->spdif_mutex);
1884         change = codec->spdif_in_enable != val;
1885         if (change) {
1886                 codec->spdif_in_enable = val;
1887                 snd_hda_codec_write_cache(codec, nid, 0,
1888                                           AC_VERB_SET_DIGI_CONVERT_1, val);
1889         }
1890         mutex_unlock(&codec->spdif_mutex);
1891         return change;
1892 }
1893
1894 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
1895                                        struct snd_ctl_elem_value *ucontrol)
1896 {
1897         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1898         hda_nid_t nid = kcontrol->private_value;
1899         unsigned short val;
1900         unsigned int sbits;
1901
1902         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT_1, 0);
1903         sbits = convert_to_spdif_status(val);
1904         ucontrol->value.iec958.status[0] = sbits;
1905         ucontrol->value.iec958.status[1] = sbits >> 8;
1906         ucontrol->value.iec958.status[2] = sbits >> 16;
1907         ucontrol->value.iec958.status[3] = sbits >> 24;
1908         return 0;
1909 }
1910
1911 static struct snd_kcontrol_new dig_in_ctls[] = {
1912         {
1913                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1914                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1915                 .info = snd_hda_spdif_in_switch_info,
1916                 .get = snd_hda_spdif_in_switch_get,
1917                 .put = snd_hda_spdif_in_switch_put,
1918         },
1919         {
1920                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1921                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1922                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1923                 .info = snd_hda_spdif_mask_info,
1924                 .get = snd_hda_spdif_in_status_get,
1925         },
1926         { } /* end */
1927 };
1928
1929 /**
1930  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1931  * @codec: the HDA codec
1932  * @nid: audio in widget NID
1933  *
1934  * Creates controls related with the SPDIF input.
1935  * Called from each patch supporting the SPDIF in.
1936  *
1937  * Returns 0 if successful, or a negative error code.
1938  */
1939 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid)
1940 {
1941         int err;
1942         struct snd_kcontrol *kctl;
1943         struct snd_kcontrol_new *dig_mix;
1944         int idx;
1945
1946         for (idx = 0; idx < SPDIF_MAX_IDX; idx++) {
1947                 if (!_snd_hda_find_mixer_ctl(codec, "IEC958 Capture Switch",
1948                                              idx))
1949                         break;
1950         }
1951         if (idx >= SPDIF_MAX_IDX) {
1952                 printk(KERN_ERR "hda_codec: too many IEC958 inputs\n");
1953                 return -EBUSY;
1954         }
1955         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1956                 kctl = snd_ctl_new1(dig_mix, codec);
1957                 kctl->private_value = nid;
1958                 err = snd_hda_ctl_add(codec, kctl);
1959                 if (err < 0)
1960                         return err;
1961         }
1962         codec->spdif_in_enable =
1963                 snd_hda_codec_read(codec, nid, 0,
1964                                    AC_VERB_GET_DIGI_CONVERT_1, 0) &
1965                 AC_DIG1_ENABLE;
1966         return 0;
1967 }
1968 EXPORT_SYMBOL_HDA(snd_hda_create_spdif_in_ctls);
1969
1970 #ifdef SND_HDA_NEEDS_RESUME
1971 /*
1972  * command cache
1973  */
1974
1975 /* build a 32bit cache key with the widget id and the command parameter */
1976 #define build_cmd_cache_key(nid, verb)  ((verb << 8) | nid)
1977 #define get_cmd_cache_nid(key)          ((key) & 0xff)
1978 #define get_cmd_cache_cmd(key)          (((key) >> 8) & 0xffff)
1979
1980 /**
1981  * snd_hda_codec_write_cache - send a single command with caching
1982  * @codec: the HDA codec
1983  * @nid: NID to send the command
1984  * @direct: direct flag
1985  * @verb: the verb to send
1986  * @parm: the parameter for the verb
1987  *
1988  * Send a single command without waiting for response.
1989  *
1990  * Returns 0 if successful, or a negative error code.
1991  */
1992 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
1993                               int direct, unsigned int verb, unsigned int parm)
1994 {
1995         struct hda_bus *bus = codec->bus;
1996         unsigned int res;
1997         int err;
1998
1999         res = make_codec_cmd(codec, nid, direct, verb, parm);
2000         snd_hda_power_up(codec);
2001         mutex_lock(&bus->cmd_mutex);
2002         err = bus->ops.command(bus, res);
2003         if (!err) {
2004                 struct hda_cache_head *c;
2005                 u32 key = build_cmd_cache_key(nid, verb);
2006                 c = get_alloc_hash(&codec->cmd_cache, key);
2007                 if (c)
2008                         c->val = parm;
2009         }
2010         mutex_unlock(&bus->cmd_mutex);
2011         snd_hda_power_down(codec);
2012         return err;
2013 }
2014 EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
2015
2016 /* resume the all commands from the cache */
2017 void snd_hda_codec_resume_cache(struct hda_codec *codec)
2018 {
2019         struct hda_cache_head *buffer = codec->cmd_cache.buf.list;
2020         int i;
2021
2022         for (i = 0; i < codec->cmd_cache.buf.used; i++, buffer++) {
2023                 u32 key = buffer->key;
2024                 if (!key)
2025                         continue;
2026                 snd_hda_codec_write(codec, get_cmd_cache_nid(key), 0,
2027                                     get_cmd_cache_cmd(key), buffer->val);
2028         }
2029 }
2030 EXPORT_SYMBOL_HDA(snd_hda_codec_resume_cache);
2031
2032 /**
2033  * snd_hda_sequence_write_cache - sequence writes with caching
2034  * @codec: the HDA codec
2035  * @seq: VERB array to send
2036  *
2037  * Send the commands sequentially from the given array.
2038  * Thte commands are recorded on cache for power-save and resume.
2039  * The array must be terminated with NID=0.
2040  */
2041 void snd_hda_sequence_write_cache(struct hda_codec *codec,
2042                                   const struct hda_verb *seq)
2043 {
2044         for (; seq->nid; seq++)
2045                 snd_hda_codec_write_cache(codec, seq->nid, 0, seq->verb,
2046                                           seq->param);
2047 }
2048 EXPORT_SYMBOL_HDA(snd_hda_sequence_write_cache);
2049 #endif /* SND_HDA_NEEDS_RESUME */
2050
2051 /*
2052  * set power state of the codec
2053  */
2054 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2055                                 unsigned int power_state)
2056 {
2057         hda_nid_t nid;
2058         int i;
2059
2060         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
2061                             power_state);
2062         msleep(10); /* partial workaround for "azx_get_response timeout" */
2063
2064         nid = codec->start_nid;
2065         for (i = 0; i < codec->num_nodes; i++, nid++) {
2066                 unsigned int wcaps = get_wcaps(codec, nid);
2067                 if (wcaps & AC_WCAP_POWER) {
2068                         unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
2069                                 AC_WCAP_TYPE_SHIFT;
2070                         if (wid_type == AC_WID_PIN) {
2071                                 unsigned int pincap;
2072                                 /*
2073                                  * don't power down the widget if it controls
2074                                  * eapd and EAPD_BTLENABLE is set.
2075                                  */
2076                                 pincap = snd_hda_param_read(codec, nid,
2077                                                             AC_PAR_PIN_CAP);
2078                                 if (pincap & AC_PINCAP_EAPD) {
2079                                         int eapd = snd_hda_codec_read(codec,
2080                                                 nid, 0,
2081                                                 AC_VERB_GET_EAPD_BTLENABLE, 0);
2082                                         eapd &= 0x02;
2083                                         if (power_state == AC_PWRST_D3 && eapd)
2084                                                 continue;
2085                                 }
2086                         }
2087                         snd_hda_codec_write(codec, nid, 0,
2088                                             AC_VERB_SET_POWER_STATE,
2089                                             power_state);
2090                 }
2091         }
2092
2093         if (power_state == AC_PWRST_D0) {
2094                 unsigned long end_time;
2095                 int state;
2096                 msleep(10);
2097                 /* wait until the codec reachs to D0 */
2098                 end_time = jiffies + msecs_to_jiffies(500);
2099                 do {
2100                         state = snd_hda_codec_read(codec, fg, 0,
2101                                                    AC_VERB_GET_POWER_STATE, 0);
2102                         if (state == power_state)
2103                                 break;
2104                         msleep(1);
2105                 } while (time_after_eq(end_time, jiffies));
2106         }
2107 }
2108
2109 #ifdef CONFIG_SND_HDA_HWDEP
2110 /* execute additional init verbs */
2111 static void hda_exec_init_verbs(struct hda_codec *codec)
2112 {
2113         if (codec->init_verbs.list)
2114                 snd_hda_sequence_write(codec, codec->init_verbs.list);
2115 }
2116 #else
2117 static inline void hda_exec_init_verbs(struct hda_codec *codec) {}
2118 #endif
2119
2120 #ifdef SND_HDA_NEEDS_RESUME
2121 /*
2122  * call suspend and power-down; used both from PM and power-save
2123  */
2124 static void hda_call_codec_suspend(struct hda_codec *codec)
2125 {
2126         if (codec->patch_ops.suspend)
2127                 codec->patch_ops.suspend(codec, PMSG_SUSPEND);
2128         hda_set_power_state(codec,
2129                             codec->afg ? codec->afg : codec->mfg,
2130                             AC_PWRST_D3);
2131 #ifdef CONFIG_SND_HDA_POWER_SAVE
2132         cancel_delayed_work(&codec->power_work);
2133         codec->power_on = 0;
2134         codec->power_transition = 0;
2135 #endif
2136 }
2137
2138 /*
2139  * kick up codec; used both from PM and power-save
2140  */
2141 static void hda_call_codec_resume(struct hda_codec *codec)
2142 {
2143         hda_set_power_state(codec,
2144                             codec->afg ? codec->afg : codec->mfg,
2145                             AC_PWRST_D0);
2146         hda_exec_init_verbs(codec);
2147         if (codec->patch_ops.resume)
2148                 codec->patch_ops.resume(codec);
2149         else {
2150                 if (codec->patch_ops.init)
2151                         codec->patch_ops.init(codec);
2152                 snd_hda_codec_resume_amp(codec);
2153                 snd_hda_codec_resume_cache(codec);
2154         }
2155 }
2156 #endif /* SND_HDA_NEEDS_RESUME */
2157
2158
2159 /**
2160  * snd_hda_build_controls - build mixer controls
2161  * @bus: the BUS
2162  *
2163  * Creates mixer controls for each codec included in the bus.
2164  *
2165  * Returns 0 if successful, otherwise a negative error code.
2166  */
2167 int /*__devinit*/ snd_hda_build_controls(struct hda_bus *bus)
2168 {
2169         struct hda_codec *codec;
2170
2171         list_for_each_entry(codec, &bus->codec_list, list) {
2172                 int err = snd_hda_codec_build_controls(codec);
2173                 if (err < 0)
2174                         return err;
2175         }
2176         return 0;
2177 }
2178 EXPORT_SYMBOL_HDA(snd_hda_build_controls);
2179
2180 int snd_hda_codec_build_controls(struct hda_codec *codec)
2181 {
2182         int err = 0;
2183         /* fake as if already powered-on */
2184         hda_keep_power_on(codec);
2185         /* then fire up */
2186         hda_set_power_state(codec,
2187                             codec->afg ? codec->afg : codec->mfg,
2188                             AC_PWRST_D0);
2189         hda_exec_init_verbs(codec);
2190         /* continue to initialize... */
2191         if (codec->patch_ops.init)
2192                 err = codec->patch_ops.init(codec);
2193         if (!err && codec->patch_ops.build_controls)
2194                 err = codec->patch_ops.build_controls(codec);
2195         snd_hda_power_down(codec);
2196         if (err < 0)
2197                 return err;
2198         return 0;
2199 }
2200
2201 /*
2202  * stream formats
2203  */
2204 struct hda_rate_tbl {
2205         unsigned int hz;
2206         unsigned int alsa_bits;
2207         unsigned int hda_fmt;
2208 };
2209
2210 static struct hda_rate_tbl rate_bits[] = {
2211         /* rate in Hz, ALSA rate bitmask, HDA format value */
2212
2213         /* autodetected value used in snd_hda_query_supported_pcm */
2214         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
2215         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
2216         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
2217         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
2218         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
2219         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
2220         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
2221         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
2222         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
2223         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
2224         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
2225 #define AC_PAR_PCM_RATE_BITS    11
2226         /* up to bits 10, 384kHZ isn't supported properly */
2227
2228         /* not autodetected value */
2229         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
2230
2231         { 0 } /* terminator */
2232 };
2233
2234 /**
2235  * snd_hda_calc_stream_format - calculate format bitset
2236  * @rate: the sample rate
2237  * @channels: the number of channels
2238  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
2239  * @maxbps: the max. bps
2240  *
2241  * Calculate the format bitset from the given rate, channels and th PCM format.
2242  *
2243  * Return zero if invalid.
2244  */
2245 unsigned int snd_hda_calc_stream_format(unsigned int rate,
2246                                         unsigned int channels,
2247                                         unsigned int format,
2248                                         unsigned int maxbps)
2249 {
2250         int i;
2251         unsigned int val = 0;
2252
2253         for (i = 0; rate_bits[i].hz; i++)
2254                 if (rate_bits[i].hz == rate) {
2255                         val = rate_bits[i].hda_fmt;
2256                         break;
2257                 }
2258         if (!rate_bits[i].hz) {
2259                 snd_printdd("invalid rate %d\n", rate);
2260                 return 0;
2261         }
2262
2263         if (channels == 0 || channels > 8) {
2264                 snd_printdd("invalid channels %d\n", channels);
2265                 return 0;
2266         }
2267         val |= channels - 1;
2268
2269         switch (snd_pcm_format_width(format)) {
2270         case 8:  val |= 0x00; break;
2271         case 16: val |= 0x10; break;
2272         case 20:
2273         case 24:
2274         case 32:
2275                 if (maxbps >= 32)
2276                         val |= 0x40;
2277                 else if (maxbps >= 24)
2278                         val |= 0x30;
2279                 else
2280                         val |= 0x20;
2281                 break;
2282         default:
2283                 snd_printdd("invalid format width %d\n",
2284                             snd_pcm_format_width(format));
2285                 return 0;
2286         }
2287
2288         return val;
2289 }
2290 EXPORT_SYMBOL_HDA(snd_hda_calc_stream_format);
2291
2292 /**
2293  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
2294  * @codec: the HDA codec
2295  * @nid: NID to query
2296  * @ratesp: the pointer to store the detected rate bitflags
2297  * @formatsp: the pointer to store the detected formats
2298  * @bpsp: the pointer to store the detected format widths
2299  *
2300  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
2301  * or @bsps argument is ignored.
2302  *
2303  * Returns 0 if successful, otherwise a negative error code.
2304  */
2305 static int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
2306                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
2307 {
2308         int i;
2309         unsigned int val, streams;
2310
2311         val = 0;
2312         if (nid != codec->afg &&
2313             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2314                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2315                 if (val == -1)
2316                         return -EIO;
2317         }
2318         if (!val)
2319                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2320
2321         if (ratesp) {
2322                 u32 rates = 0;
2323                 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
2324                         if (val & (1 << i))
2325                                 rates |= rate_bits[i].alsa_bits;
2326                 }
2327                 *ratesp = rates;
2328         }
2329
2330         if (formatsp || bpsp) {
2331                 u64 formats = 0;
2332                 unsigned int bps;
2333                 unsigned int wcaps;
2334
2335                 wcaps = get_wcaps(codec, nid);
2336                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2337                 if (streams == -1)
2338                         return -EIO;
2339                 if (!streams) {
2340                         streams = snd_hda_param_read(codec, codec->afg,
2341                                                      AC_PAR_STREAM);
2342                         if (streams == -1)
2343                                 return -EIO;
2344                 }
2345
2346                 bps = 0;
2347                 if (streams & AC_SUPFMT_PCM) {
2348                         if (val & AC_SUPPCM_BITS_8) {
2349                                 formats |= SNDRV_PCM_FMTBIT_U8;
2350                                 bps = 8;
2351                         }
2352                         if (val & AC_SUPPCM_BITS_16) {
2353                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
2354                                 bps = 16;
2355                         }
2356                         if (wcaps & AC_WCAP_DIGITAL) {
2357                                 if (val & AC_SUPPCM_BITS_32)
2358                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
2359                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
2360                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
2361                                 if (val & AC_SUPPCM_BITS_24)
2362                                         bps = 24;
2363                                 else if (val & AC_SUPPCM_BITS_20)
2364                                         bps = 20;
2365                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
2366                                           AC_SUPPCM_BITS_32)) {
2367                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
2368                                 if (val & AC_SUPPCM_BITS_32)
2369                                         bps = 32;
2370                                 else if (val & AC_SUPPCM_BITS_24)
2371                                         bps = 24;
2372                                 else if (val & AC_SUPPCM_BITS_20)
2373                                         bps = 20;
2374                         }
2375                 }
2376                 else if (streams == AC_SUPFMT_FLOAT32) {
2377                         /* should be exclusive */
2378                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
2379                         bps = 32;
2380                 } else if (streams == AC_SUPFMT_AC3) {
2381                         /* should be exclusive */
2382                         /* temporary hack: we have still no proper support
2383                          * for the direct AC3 stream...
2384                          */
2385                         formats |= SNDRV_PCM_FMTBIT_U8;
2386                         bps = 8;
2387                 }
2388                 if (formatsp)
2389                         *formatsp = formats;
2390                 if (bpsp)
2391                         *bpsp = bps;
2392         }
2393
2394         return 0;
2395 }
2396
2397 /**
2398  * snd_hda_is_supported_format - check whether the given node supports
2399  * the format val
2400  *
2401  * Returns 1 if supported, 0 if not.
2402  */
2403 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
2404                                 unsigned int format)
2405 {
2406         int i;
2407         unsigned int val = 0, rate, stream;
2408
2409         if (nid != codec->afg &&
2410             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
2411                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
2412                 if (val == -1)
2413                         return 0;
2414         }
2415         if (!val) {
2416                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
2417                 if (val == -1)
2418                         return 0;
2419         }
2420
2421         rate = format & 0xff00;
2422         for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
2423                 if (rate_bits[i].hda_fmt == rate) {
2424                         if (val & (1 << i))
2425                                 break;
2426                         return 0;
2427                 }
2428         if (i >= AC_PAR_PCM_RATE_BITS)
2429                 return 0;
2430
2431         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
2432         if (stream == -1)
2433                 return 0;
2434         if (!stream && nid != codec->afg)
2435                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
2436         if (!stream || stream == -1)
2437                 return 0;
2438
2439         if (stream & AC_SUPFMT_PCM) {
2440                 switch (format & 0xf0) {
2441                 case 0x00:
2442                         if (!(val & AC_SUPPCM_BITS_8))
2443                                 return 0;
2444                         break;
2445                 case 0x10:
2446                         if (!(val & AC_SUPPCM_BITS_16))
2447                                 return 0;
2448                         break;
2449                 case 0x20:
2450                         if (!(val & AC_SUPPCM_BITS_20))
2451                                 return 0;
2452                         break;
2453                 case 0x30:
2454                         if (!(val & AC_SUPPCM_BITS_24))
2455                                 return 0;
2456                         break;
2457                 case 0x40:
2458                         if (!(val & AC_SUPPCM_BITS_32))
2459                                 return 0;
2460                         break;
2461                 default:
2462                         return 0;
2463                 }
2464         } else {
2465                 /* FIXME: check for float32 and AC3? */
2466         }
2467
2468         return 1;
2469 }
2470 EXPORT_SYMBOL_HDA(snd_hda_is_supported_format);
2471
2472 /*
2473  * PCM stuff
2474  */
2475 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
2476                                       struct hda_codec *codec,
2477                                       struct snd_pcm_substream *substream)
2478 {
2479         return 0;
2480 }
2481
2482 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
2483                                    struct hda_codec *codec,
2484                                    unsigned int stream_tag,
2485                                    unsigned int format,
2486                                    struct snd_pcm_substream *substream)
2487 {
2488         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
2489         return 0;
2490 }
2491
2492 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
2493                                    struct hda_codec *codec,
2494                                    struct snd_pcm_substream *substream)
2495 {
2496         snd_hda_codec_cleanup_stream(codec, hinfo->nid);
2497         return 0;
2498 }
2499
2500 static int set_pcm_default_values(struct hda_codec *codec,
2501                                   struct hda_pcm_stream *info)
2502 {
2503         /* query support PCM information from the given NID */
2504         if (info->nid && (!info->rates || !info->formats)) {
2505                 snd_hda_query_supported_pcm(codec, info->nid,
2506                                 info->rates ? NULL : &info->rates,
2507                                 info->formats ? NULL : &info->formats,
2508                                 info->maxbps ? NULL : &info->maxbps);
2509         }
2510         if (info->ops.open == NULL)
2511                 info->ops.open = hda_pcm_default_open_close;
2512         if (info->ops.close == NULL)
2513                 info->ops.close = hda_pcm_default_open_close;
2514         if (info->ops.prepare == NULL) {
2515                 if (snd_BUG_ON(!info->nid))
2516                         return -EINVAL;
2517                 info->ops.prepare = hda_pcm_default_prepare;
2518         }
2519         if (info->ops.cleanup == NULL) {
2520                 if (snd_BUG_ON(!info->nid))
2521                         return -EINVAL;
2522                 info->ops.cleanup = hda_pcm_default_cleanup;
2523         }
2524         return 0;
2525 }
2526
2527 /*
2528  * get the empty PCM device number to assign
2529  */
2530 static int get_empty_pcm_device(struct hda_bus *bus, int type)
2531 {
2532         static const char *dev_name[HDA_PCM_NTYPES] = {
2533                 "Audio", "SPDIF", "HDMI", "Modem"
2534         };
2535         /* starting device index for each PCM type */
2536         static int dev_idx[HDA_PCM_NTYPES] = {
2537                 [HDA_PCM_TYPE_AUDIO] = 0,
2538                 [HDA_PCM_TYPE_SPDIF] = 1,
2539                 [HDA_PCM_TYPE_HDMI] = 3,
2540                 [HDA_PCM_TYPE_MODEM] = 6
2541         };
2542         /* normal audio device indices; not linear to keep compatibility */
2543         static int audio_idx[4] = { 0, 2, 4, 5 };
2544         int i, dev;
2545
2546         switch (type) {
2547         case HDA_PCM_TYPE_AUDIO:
2548                 for (i = 0; i < ARRAY_SIZE(audio_idx); i++) {
2549                         dev = audio_idx[i];
2550                         if (!test_bit(dev, bus->pcm_dev_bits))
2551                                 break;
2552                 }
2553                 if (i >= ARRAY_SIZE(audio_idx)) {
2554                         snd_printk(KERN_WARNING "Too many audio devices\n");
2555                         return -EAGAIN;
2556                 }
2557                 break;
2558         case HDA_PCM_TYPE_SPDIF:
2559         case HDA_PCM_TYPE_HDMI:
2560         case HDA_PCM_TYPE_MODEM:
2561                 dev = dev_idx[type];
2562                 if (test_bit(dev, bus->pcm_dev_bits)) {
2563                         snd_printk(KERN_WARNING "%s already defined\n",
2564                                    dev_name[type]);
2565                         return -EAGAIN;
2566                 }
2567                 break;
2568         default:
2569                 snd_printk(KERN_WARNING "Invalid PCM type %d\n", type);
2570                 return -EINVAL;
2571         }
2572         set_bit(dev, bus->pcm_dev_bits);
2573         return dev;
2574 }
2575
2576 /*
2577  * attach a new PCM stream
2578  */
2579 static int snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
2580 {
2581         struct hda_bus *bus = codec->bus;
2582         struct hda_pcm_stream *info;
2583         int stream, err;
2584
2585         if (snd_BUG_ON(!pcm->name))
2586                 return -EINVAL;
2587         for (stream = 0; stream < 2; stream++) {
2588                 info = &pcm->stream[stream];
2589                 if (info->substreams) {
2590                         err = set_pcm_default_values(codec, info);
2591                         if (err < 0)
2592                                 return err;
2593                 }
2594         }
2595         return bus->ops.attach_pcm(bus, codec, pcm);
2596 }
2597
2598 /* assign all PCMs of the given codec */
2599 int snd_hda_codec_build_pcms(struct hda_codec *codec)
2600 {
2601         unsigned int pcm;
2602         int err;
2603
2604         if (!codec->num_pcms) {
2605                 if (!codec->patch_ops.build_pcms)
2606                         return 0;
2607                 err = codec->patch_ops.build_pcms(codec);
2608                 if (err < 0)
2609                         return err;
2610         }
2611         for (pcm = 0; pcm < codec->num_pcms; pcm++) {
2612                 struct hda_pcm *cpcm = &codec->pcm_info[pcm];
2613                 int dev;
2614
2615                 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
2616                         return 0; /* no substreams assigned */
2617
2618                 if (!cpcm->pcm) {
2619                         dev = get_empty_pcm_device(codec->bus, cpcm->pcm_type);
2620                         if (dev < 0)
2621                                 return 0;
2622                         cpcm->device = dev;
2623                         err = snd_hda_attach_pcm(codec, cpcm);
2624                         if (err < 0)
2625                                 return err;
2626                 }
2627         }
2628         return 0;
2629 }
2630
2631 /**
2632  * snd_hda_build_pcms - build PCM information
2633  * @bus: the BUS
2634  *
2635  * Create PCM information for each codec included in the bus.
2636  *
2637  * The build_pcms codec patch is requested to set up codec->num_pcms and
2638  * codec->pcm_info properly.  The array is referred by the top-level driver
2639  * to create its PCM instances.
2640  * The allocated codec->pcm_info should be released in codec->patch_ops.free
2641  * callback.
2642  *
2643  * At least, substreams, channels_min and channels_max must be filled for
2644  * each stream.  substreams = 0 indicates that the stream doesn't exist.
2645  * When rates and/or formats are zero, the supported values are queried
2646  * from the given nid.  The nid is used also by the default ops.prepare
2647  * and ops.cleanup callbacks.
2648  *
2649  * The driver needs to call ops.open in its open callback.  Similarly,
2650  * ops.close is supposed to be called in the close callback.
2651  * ops.prepare should be called in the prepare or hw_params callback
2652  * with the proper parameters for set up.
2653  * ops.cleanup should be called in hw_free for clean up of streams.
2654  *
2655  * This function returns 0 if successfull, or a negative error code.
2656  */
2657 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
2658 {
2659         struct hda_codec *codec;
2660
2661         list_for_each_entry(codec, &bus->codec_list, list) {
2662                 int err = snd_hda_codec_build_pcms(codec);
2663                 if (err < 0)
2664                         return err;
2665         }
2666         return 0;
2667 }
2668 EXPORT_SYMBOL_HDA(snd_hda_build_pcms);
2669
2670 /**
2671  * snd_hda_check_board_config - compare the current codec with the config table
2672  * @codec: the HDA codec
2673  * @num_configs: number of config enums
2674  * @models: array of model name strings
2675  * @tbl: configuration table, terminated by null entries
2676  *
2677  * Compares the modelname or PCI subsystem id of the current codec with the
2678  * given configuration table.  If a matching entry is found, returns its
2679  * config value (supposed to be 0 or positive).
2680  *
2681  * If no entries are matching, the function returns a negative value.
2682  */
2683 int snd_hda_check_board_config(struct hda_codec *codec,
2684                                int num_configs, const char **models,
2685                                const struct snd_pci_quirk *tbl)
2686 {
2687         if (codec->modelname && models) {
2688                 int i;
2689                 for (i = 0; i < num_configs; i++) {
2690                         if (models[i] &&
2691                             !strcmp(codec->modelname, models[i])) {
2692                                 snd_printd(KERN_INFO "hda_codec: model '%s' is "
2693                                            "selected\n", models[i]);
2694                                 return i;
2695                         }
2696                 }
2697         }
2698
2699         if (!codec->bus->pci || !tbl)
2700                 return -1;
2701
2702         tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
2703         if (!tbl)
2704                 return -1;
2705         if (tbl->value >= 0 && tbl->value < num_configs) {
2706 #ifdef CONFIG_SND_DEBUG_VERBOSE
2707                 char tmp[10];
2708                 const char *model = NULL;
2709                 if (models)
2710                         model = models[tbl->value];
2711                 if (!model) {
2712                         sprintf(tmp, "#%d", tbl->value);
2713                         model = tmp;
2714                 }
2715                 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
2716                             "for config %x:%x (%s)\n",
2717                             model, tbl->subvendor, tbl->subdevice,
2718                             (tbl->name ? tbl->name : "Unknown device"));
2719 #endif
2720                 return tbl->value;
2721         }
2722         return -1;
2723 }
2724 EXPORT_SYMBOL_HDA(snd_hda_check_board_config);
2725
2726 /**
2727  * snd_hda_add_new_ctls - create controls from the array
2728  * @codec: the HDA codec
2729  * @knew: the array of struct snd_kcontrol_new
2730  *
2731  * This helper function creates and add new controls in the given array.
2732  * The array must be terminated with an empty entry as terminator.
2733  *
2734  * Returns 0 if successful, or a negative error code.
2735  */
2736 int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2737 {
2738         int err;
2739
2740         for (; knew->name; knew++) {
2741                 struct snd_kcontrol *kctl;
2742                 kctl = snd_ctl_new1(knew, codec);
2743                 if (!kctl)
2744                         return -ENOMEM;
2745                 err = snd_hda_ctl_add(codec, kctl);
2746                 if (err < 0) {
2747                         if (!codec->addr)
2748                                 return err;
2749                         kctl = snd_ctl_new1(knew, codec);
2750                         if (!kctl)
2751                                 return -ENOMEM;
2752                         kctl->id.device = codec->addr;
2753                         err = snd_hda_ctl_add(codec, kctl);
2754                         if (err < 0)
2755                                 return err;
2756                 }
2757         }
2758         return 0;
2759 }
2760 EXPORT_SYMBOL_HDA(snd_hda_add_new_ctls);
2761
2762 #ifdef CONFIG_SND_HDA_POWER_SAVE
2763 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2764                                 unsigned int power_state);
2765
2766 static void hda_power_work(struct work_struct *work)
2767 {
2768         struct hda_codec *codec =
2769                 container_of(work, struct hda_codec, power_work.work);
2770         struct hda_bus *bus = codec->bus;
2771
2772         if (!codec->power_on || codec->power_count) {
2773                 codec->power_transition = 0;
2774                 return;
2775         }
2776
2777         hda_call_codec_suspend(codec);
2778         if (bus->ops.pm_notify)
2779                 bus->ops.pm_notify(bus);
2780 }
2781
2782 static void hda_keep_power_on(struct hda_codec *codec)
2783 {
2784         codec->power_count++;
2785         codec->power_on = 1;
2786 }
2787
2788 void snd_hda_power_up(struct hda_codec *codec)
2789 {
2790         struct hda_bus *bus = codec->bus;
2791
2792         codec->power_count++;
2793         if (codec->power_on || codec->power_transition)
2794                 return;
2795
2796         codec->power_on = 1;
2797         if (bus->ops.pm_notify)
2798                 bus->ops.pm_notify(bus);
2799         hda_call_codec_resume(codec);
2800         cancel_delayed_work(&codec->power_work);
2801         codec->power_transition = 0;
2802 }
2803 EXPORT_SYMBOL_HDA(snd_hda_power_up);
2804
2805 #define power_save(codec)       \
2806         ((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
2807
2808 #define power_save(codec)       \
2809         ((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
2810
2811 void snd_hda_power_down(struct hda_codec *codec)
2812 {
2813         --codec->power_count;
2814         if (!codec->power_on || codec->power_count || codec->power_transition)
2815                 return;
2816         if (power_save(codec)) {
2817                 codec->power_transition = 1; /* avoid reentrance */
2818                 schedule_delayed_work(&codec->power_work,
2819                                 msecs_to_jiffies(power_save(codec) * 1000));
2820         }
2821 }
2822 EXPORT_SYMBOL_HDA(snd_hda_power_down);
2823
2824 int snd_hda_check_amp_list_power(struct hda_codec *codec,
2825                                  struct hda_loopback_check *check,
2826                                  hda_nid_t nid)
2827 {
2828         struct hda_amp_list *p;
2829         int ch, v;
2830
2831         if (!check->amplist)
2832                 return 0;
2833         for (p = check->amplist; p->nid; p++) {
2834                 if (p->nid == nid)
2835                         break;
2836         }
2837         if (!p->nid)
2838                 return 0; /* nothing changed */
2839
2840         for (p = check->amplist; p->nid; p++) {
2841                 for (ch = 0; ch < 2; ch++) {
2842                         v = snd_hda_codec_amp_read(codec, p->nid, ch, p->dir,
2843                                                    p->idx);
2844                         if (!(v & HDA_AMP_MUTE) && v > 0) {
2845                                 if (!check->power_on) {
2846                                         check->power_on = 1;
2847                                         snd_hda_power_up(codec);
2848                                 }
2849                                 return 1;
2850                         }
2851                 }
2852         }
2853         if (check->power_on) {
2854                 check->power_on = 0;
2855                 snd_hda_power_down(codec);
2856         }
2857         return 0;
2858 }
2859 EXPORT_SYMBOL_HDA(snd_hda_check_amp_list_power);
2860 #endif
2861
2862 /*
2863  * Channel mode helper
2864  */
2865 int snd_hda_ch_mode_info(struct hda_codec *codec,
2866                          struct snd_ctl_elem_info *uinfo,
2867                          const struct hda_channel_mode *chmode,
2868                          int num_chmodes)
2869 {
2870         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2871         uinfo->count = 1;
2872         uinfo->value.enumerated.items = num_chmodes;
2873         if (uinfo->value.enumerated.item >= num_chmodes)
2874                 uinfo->value.enumerated.item = num_chmodes - 1;
2875         sprintf(uinfo->value.enumerated.name, "%dch",
2876                 chmode[uinfo->value.enumerated.item].channels);
2877         return 0;
2878 }
2879 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_info);
2880
2881 int snd_hda_ch_mode_get(struct hda_codec *codec,
2882                         struct snd_ctl_elem_value *ucontrol,
2883                         const struct hda_channel_mode *chmode,
2884                         int num_chmodes,
2885                         int max_channels)
2886 {
2887         int i;
2888
2889         for (i = 0; i < num_chmodes; i++) {
2890                 if (max_channels == chmode[i].channels) {
2891                         ucontrol->value.enumerated.item[0] = i;
2892                         break;
2893                 }
2894         }
2895         return 0;
2896 }
2897 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_get);
2898
2899 int snd_hda_ch_mode_put(struct hda_codec *codec,
2900                         struct snd_ctl_elem_value *ucontrol,
2901                         const struct hda_channel_mode *chmode,
2902                         int num_chmodes,
2903                         int *max_channelsp)
2904 {
2905         unsigned int mode;
2906
2907         mode = ucontrol->value.enumerated.item[0];
2908         if (mode >= num_chmodes)
2909                 return -EINVAL;
2910         if (*max_channelsp == chmode[mode].channels)
2911                 return 0;
2912         /* change the current channel setting */
2913         *max_channelsp = chmode[mode].channels;
2914         if (chmode[mode].sequence)
2915                 snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
2916         return 1;
2917 }
2918 EXPORT_SYMBOL_HDA(snd_hda_ch_mode_put);
2919
2920 /*
2921  * input MUX helper
2922  */
2923 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
2924                            struct snd_ctl_elem_info *uinfo)
2925 {
2926         unsigned int index;
2927
2928         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2929         uinfo->count = 1;
2930         uinfo->value.enumerated.items = imux->num_items;
2931         if (!imux->num_items)
2932                 return 0;
2933         index = uinfo->value.enumerated.item;
2934         if (index >= imux->num_items)
2935                 index = imux->num_items - 1;
2936         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
2937         return 0;
2938 }
2939 EXPORT_SYMBOL_HDA(snd_hda_input_mux_info);
2940
2941 int snd_hda_input_mux_put(struct hda_codec *codec,
2942                           const struct hda_input_mux *imux,
2943                           struct snd_ctl_elem_value *ucontrol,
2944                           hda_nid_t nid,
2945                           unsigned int *cur_val)
2946 {
2947         unsigned int idx;
2948
2949         if (!imux->num_items)
2950                 return 0;
2951         idx = ucontrol->value.enumerated.item[0];
2952         if (idx >= imux->num_items)
2953                 idx = imux->num_items - 1;
2954         if (*cur_val == idx)
2955                 return 0;
2956         snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
2957                                   imux->items[idx].index);
2958         *cur_val = idx;
2959         return 1;
2960 }
2961 EXPORT_SYMBOL_HDA(snd_hda_input_mux_put);
2962
2963
2964 /*
2965  * Multi-channel / digital-out PCM helper functions
2966  */
2967
2968 /* setup SPDIF output stream */
2969 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
2970                                  unsigned int stream_tag, unsigned int format)
2971 {
2972         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2973         if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
2974                 set_dig_out_convert(codec, nid,
2975                                     codec->spdif_ctls & ~AC_DIG1_ENABLE & 0xff,
2976                                     -1);
2977         snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
2978         if (codec->slave_dig_outs) {
2979                 hda_nid_t *d;
2980                 for (d = codec->slave_dig_outs; *d; d++)
2981                         snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
2982                                                    format);
2983         }
2984         /* turn on again (if needed) */
2985         if (codec->spdif_status_reset && (codec->spdif_ctls & AC_DIG1_ENABLE))
2986                 set_dig_out_convert(codec, nid,
2987                                     codec->spdif_ctls & 0xff, -1);
2988 }
2989
2990 static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
2991 {
2992         snd_hda_codec_cleanup_stream(codec, nid);
2993         if (codec->slave_dig_outs) {
2994                 hda_nid_t *d;
2995                 for (d = codec->slave_dig_outs; *d; d++)
2996                         snd_hda_codec_cleanup_stream(codec, *d);
2997         }
2998 }
2999
3000 /*
3001  * open the digital out in the exclusive mode
3002  */
3003 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
3004                                struct hda_multi_out *mout)
3005 {
3006         mutex_lock(&codec->spdif_mutex);
3007         if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
3008                 /* already opened as analog dup; reset it once */
3009                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3010         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
3011         mutex_unlock(&codec->spdif_mutex);
3012         return 0;
3013 }
3014 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_open);
3015
3016 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
3017                                   struct hda_multi_out *mout,
3018                                   unsigned int stream_tag,
3019                                   unsigned int format,
3020                                   struct snd_pcm_substream *substream)
3021 {
3022         mutex_lock(&codec->spdif_mutex);
3023         setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
3024         mutex_unlock(&codec->spdif_mutex);
3025         return 0;
3026 }
3027 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_prepare);
3028
3029 /*
3030  * release the digital out
3031  */
3032 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
3033                                 struct hda_multi_out *mout)
3034 {
3035         mutex_lock(&codec->spdif_mutex);
3036         mout->dig_out_used = 0;
3037         mutex_unlock(&codec->spdif_mutex);
3038         return 0;
3039 }
3040 EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_close);
3041
3042 /*
3043  * set up more restrictions for analog out
3044  */
3045 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
3046                                   struct hda_multi_out *mout,
3047                                   struct snd_pcm_substream *substream,
3048                                   struct hda_pcm_stream *hinfo)
3049 {
3050         struct snd_pcm_runtime *runtime = substream->runtime;
3051         runtime->hw.channels_max = mout->max_channels;
3052         if (mout->dig_out_nid) {
3053                 if (!mout->analog_rates) {
3054                         mout->analog_rates = hinfo->rates;
3055                         mout->analog_formats = hinfo->formats;
3056                         mout->analog_maxbps = hinfo->maxbps;
3057                 } else {
3058                         runtime->hw.rates = mout->analog_rates;
3059                         runtime->hw.formats = mout->analog_formats;
3060                         hinfo->maxbps = mout->analog_maxbps;
3061                 }
3062                 if (!mout->spdif_rates) {
3063                         snd_hda_query_supported_pcm(codec, mout->dig_out_nid,
3064                                                     &mout->spdif_rates,
3065                                                     &mout->spdif_formats,
3066                                                     &mout->spdif_maxbps);
3067                 }
3068                 mutex_lock(&codec->spdif_mutex);
3069                 if (mout->share_spdif) {
3070                         runtime->hw.rates &= mout->spdif_rates;
3071                         runtime->hw.formats &= mout->spdif_formats;
3072                         if (mout->spdif_maxbps < hinfo->maxbps)
3073                                 hinfo->maxbps = mout->spdif_maxbps;
3074                 }
3075                 mutex_unlock(&codec->spdif_mutex);
3076         }
3077         return snd_pcm_hw_constraint_step(substream->runtime, 0,
3078                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
3079 }
3080 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_open);
3081
3082 /*
3083  * set up the i/o for analog out
3084  * when the digital out is available, copy the front out to digital out, too.
3085  */
3086 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
3087                                      struct hda_multi_out *mout,
3088                                      unsigned int stream_tag,
3089                                      unsigned int format,
3090                                      struct snd_pcm_substream *substream)
3091 {
3092         hda_nid_t *nids = mout->dac_nids;
3093         int chs = substream->runtime->channels;
3094         int i;
3095
3096         mutex_lock(&codec->spdif_mutex);
3097         if (mout->dig_out_nid && mout->share_spdif &&
3098             mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
3099                 if (chs == 2 &&
3100                     snd_hda_is_supported_format(codec, mout->dig_out_nid,
3101                                                 format) &&
3102                     !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
3103                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
3104                         setup_dig_out_stream(codec, mout->dig_out_nid,
3105                                              stream_tag, format);
3106                 } else {
3107                         mout->dig_out_used = 0;
3108                         cleanup_dig_out_stream(codec, mout->dig_out_nid);
3109                 }
3110         }
3111         mutex_unlock(&codec->spdif_mutex);
3112
3113         /* front */
3114         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
3115                                    0, format);
3116         if (!mout->no_share_stream &&
3117             mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
3118                 /* headphone out will just decode front left/right (stereo) */
3119                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
3120                                            0, format);
3121         /* extra outputs copied from front */
3122         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3123                 if (!mout->no_share_stream && mout->extra_out_nid[i])
3124                         snd_hda_codec_setup_stream(codec,
3125                                                    mout->extra_out_nid[i],
3126                                                    stream_tag, 0, format);
3127
3128         /* surrounds */
3129         for (i = 1; i < mout->num_dacs; i++) {
3130                 if (chs >= (i + 1) * 2) /* independent out */
3131                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3132                                                    i * 2, format);
3133                 else if (!mout->no_share_stream) /* copy front */
3134                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
3135                                                    0, format);
3136         }
3137         return 0;
3138 }
3139 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);
3140
3141 /*
3142  * clean up the setting for analog out
3143  */
3144 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
3145                                      struct hda_multi_out *mout)
3146 {
3147         hda_nid_t *nids = mout->dac_nids;
3148         int i;
3149
3150         for (i = 0; i < mout->num_dacs; i++)
3151                 snd_hda_codec_cleanup_stream(codec, nids[i]);
3152         if (mout->hp_nid)
3153                 snd_hda_codec_cleanup_stream(codec, mout->hp_nid);
3154         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
3155                 if (mout->extra_out_nid[i])
3156                         snd_hda_codec_cleanup_stream(codec,
3157                                                      mout->extra_out_nid[i]);
3158         mutex_lock(&codec->spdif_mutex);
3159         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
3160                 cleanup_dig_out_stream(codec, mout->dig_out_nid);
3161                 mout->dig_out_used = 0;
3162         }
3163         mutex_unlock(&codec->spdif_mutex);
3164         return 0;
3165 }
3166 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_cleanup);
3167
3168 /*
3169  * Helper for automatic pin configuration
3170  */
3171
3172 static int is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
3173 {
3174         for (; *list; list++)
3175                 if (*list == nid)
3176                         return 1;
3177         return 0;
3178 }
3179
3180
3181 /*
3182  * Sort an associated group of pins according to their sequence numbers.
3183  */
3184 static void sort_pins_by_sequence(hda_nid_t * pins, short * sequences,
3185                                   int num_pins)
3186 {
3187         int i, j;
3188         short seq;
3189         hda_nid_t nid;
3190
3191         for (i = 0; i < num_pins; i++) {
3192                 for (j = i + 1; j < num_pins; j++) {
3193                         if (sequences[i] > sequences[j]) {
3194                                 seq = sequences[i];
3195                                 sequences[i] = sequences[j];
3196                                 sequences[j] = seq;
3197                                 nid = pins[i];
3198                                 pins[i] = pins[j];
3199                                 pins[j] = nid;
3200                         }
3201                 }
3202         }
3203 }
3204
3205
3206 /*
3207  * Parse all pin widgets and store the useful pin nids to cfg
3208  *
3209  * The number of line-outs or any primary output is stored in line_outs,
3210  * and the corresponding output pins are assigned to line_out_pins[],
3211  * in the order of front, rear, CLFE, side, ...
3212  *
3213  * If more extra outputs (speaker and headphone) are found, the pins are
3214  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
3215  * is detected, one of speaker of HP pins is assigned as the primary
3216  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
3217  * if any analog output exists.
3218  *
3219  * The analog input pins are assigned to input_pins array.
3220  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
3221  * respectively.
3222  */
3223 int snd_hda_parse_pin_def_config(struct hda_codec *codec,
3224                                  struct auto_pin_cfg *cfg,
3225                                  hda_nid_t *ignore_nids)
3226 {
3227         hda_nid_t nid, end_nid;
3228         short seq, assoc_line_out, assoc_speaker;
3229         short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
3230         short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
3231         short sequences_hp[ARRAY_SIZE(cfg->hp_pins)];
3232
3233         memset(cfg, 0, sizeof(*cfg));
3234
3235         memset(sequences_line_out, 0, sizeof(sequences_line_out));
3236         memset(sequences_speaker, 0, sizeof(sequences_speaker));
3237         memset(sequences_hp, 0, sizeof(sequences_hp));
3238         assoc_line_out = assoc_speaker = 0;
3239
3240         end_nid = codec->start_nid + codec->num_nodes;
3241         for (nid = codec->start_nid; nid < end_nid; nid++) {
3242                 unsigned int wid_caps = get_wcaps(codec, nid);
3243                 unsigned int wid_type =
3244                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
3245                 unsigned int def_conf;
3246                 short assoc, loc;
3247
3248                 /* read all default configuration for pin complex */
3249                 if (wid_type != AC_WID_PIN)
3250                         continue;
3251                 /* ignore the given nids (e.g. pc-beep returns error) */
3252                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
3253                         continue;
3254
3255                 def_conf = snd_hda_codec_read(codec, nid, 0,
3256                                               AC_VERB_GET_CONFIG_DEFAULT, 0);
3257                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
3258                         continue;
3259                 loc = get_defcfg_location(def_conf);
3260                 switch (get_defcfg_device(def_conf)) {
3261                 case AC_JACK_LINE_OUT:
3262                         seq = get_defcfg_sequence(def_conf);
3263                         assoc = get_defcfg_association(def_conf);
3264
3265                         if (!(wid_caps & AC_WCAP_STEREO))
3266                                 if (!cfg->mono_out_pin)
3267                                         cfg->mono_out_pin = nid;
3268                         if (!assoc)
3269                                 continue;
3270                         if (!assoc_line_out)
3271                                 assoc_line_out = assoc;
3272                         else if (assoc_line_out != assoc)
3273                                 continue;
3274                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
3275                                 continue;
3276                         cfg->line_out_pins[cfg->line_outs] = nid;
3277                         sequences_line_out[cfg->line_outs] = seq;
3278                         cfg->line_outs++;
3279                         break;
3280                 case AC_JACK_SPEAKER:
3281                         seq = get_defcfg_sequence(def_conf);
3282                         assoc = get_defcfg_association(def_conf);
3283                         if (! assoc)
3284                                 continue;
3285                         if (! assoc_speaker)
3286                                 assoc_speaker = assoc;
3287                         else if (assoc_speaker != assoc)
3288                                 continue;
3289                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
3290                                 continue;
3291                         cfg->speaker_pins[cfg->speaker_outs] = nid;
3292                         sequences_speaker[cfg->speaker_outs] = seq;
3293                         cfg->speaker_outs++;
3294                         break;
3295                 case AC_JACK_HP_OUT:
3296                         seq = get_defcfg_sequence(def_conf);
3297                         assoc = get_defcfg_association(def_conf);
3298                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
3299                                 continue;
3300                         cfg->hp_pins[cfg->hp_outs] = nid;
3301                         sequences_hp[cfg->hp_outs] = (assoc << 4) | seq;
3302                         cfg->hp_outs++;
3303                         break;
3304                 case AC_JACK_MIC_IN: {
3305                         int preferred, alt;
3306                         if (loc == AC_JACK_LOC_FRONT) {
3307                                 preferred = AUTO_PIN_FRONT_MIC;
3308                                 alt = AUTO_PIN_MIC;
3309                         } else {
3310                                 preferred = AUTO_PIN_MIC;
3311                                 alt = AUTO_PIN_FRONT_MIC;
3312                         }
3313                         if (!cfg->input_pins[preferred])
3314                                 cfg->input_pins[preferred] = nid;
3315                         else if (!cfg->input_pins[alt])
3316                                 cfg->input_pins[alt] = nid;
3317                         break;
3318                 }
3319                 case AC_JACK_LINE_IN:
3320                         if (loc == AC_JACK_LOC_FRONT)
3321                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
3322                         else
3323                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
3324                         break;
3325                 case AC_JACK_CD:
3326                         cfg->input_pins[AUTO_PIN_CD] = nid;
3327                         break;
3328                 case AC_JACK_AUX:
3329                         cfg->input_pins[AUTO_PIN_AUX] = nid;
3330                         break;
3331                 case AC_JACK_SPDIF_OUT:
3332                         cfg->dig_out_pin = nid;
3333                         break;
3334                 case AC_JACK_SPDIF_IN:
3335                         cfg->dig_in_pin = nid;
3336                         break;
3337                 }
3338         }
3339
3340         /* FIX-UP:
3341          * If no line-out is defined but multiple HPs are found,
3342          * some of them might be the real line-outs.
3343          */
3344         if (!cfg->line_outs && cfg->hp_outs > 1) {
3345                 int i = 0;
3346                 while (i < cfg->hp_outs) {
3347                         /* The real HPs should have the sequence 0x0f */
3348                         if ((sequences_hp[i] & 0x0f) == 0x0f) {
3349                                 i++;
3350                                 continue;
3351                         }
3352                         /* Move it to the line-out table */
3353                         cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i];
3354                         sequences_line_out[cfg->line_outs] = sequences_hp[i];
3355                         cfg->line_outs++;
3356                         cfg->hp_outs--;
3357                         memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
3358                                 sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
3359                         memmove(sequences_hp + i - 1, sequences_hp + i,
3360                                 sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
3361                 }
3362         }
3363
3364         /* sort by sequence */
3365         sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
3366                               cfg->line_outs);
3367         sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
3368                               cfg->speaker_outs);
3369         sort_pins_by_sequence(cfg->hp_pins, sequences_hp,
3370                               cfg->hp_outs);
3371
3372         /* if we have only one mic, make it AUTO_PIN_MIC */
3373         if (!cfg->input_pins[AUTO_PIN_MIC] &&
3374             cfg->input_pins[AUTO_PIN_FRONT_MIC]) {
3375                 cfg->input_pins[AUTO_PIN_MIC] =
3376                         cfg->input_pins[AUTO_PIN_FRONT_MIC];
3377                 cfg->input_pins[AUTO_PIN_FRONT_MIC] = 0;
3378         }
3379         /* ditto for line-in */
3380         if (!cfg->input_pins[AUTO_PIN_LINE] &&
3381             cfg->input_pins[AUTO_PIN_FRONT_LINE]) {
3382                 cfg->input_pins[AUTO_PIN_LINE] =
3383                         cfg->input_pins[AUTO_PIN_FRONT_LINE];
3384                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = 0;
3385         }
3386
3387         /*
3388          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
3389          * as a primary output
3390          */
3391         if (!cfg->line_outs) {
3392                 if (cfg->speaker_outs) {
3393                         cfg->line_outs = cfg->speaker_outs;
3394                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
3395                                sizeof(cfg->speaker_pins));
3396                         cfg->speaker_outs = 0;
3397                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
3398                         cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
3399                 } else if (cfg->hp_outs) {
3400                         cfg->line_outs = cfg->hp_outs;
3401                         memcpy(cfg->line_out_pins, cfg->hp_pins,
3402                                sizeof(cfg->hp_pins));
3403                         cfg->hp_outs = 0;
3404                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
3405                         cfg->line_out_type = AUTO_PIN_HP_OUT;
3406                 }
3407         }
3408
3409         /* Reorder the surround channels
3410          * ALSA sequence is front/surr/clfe/side
3411          * HDA sequence is:
3412          *    4-ch: front/surr  =>  OK as it is
3413          *    6-ch: front/clfe/surr
3414          *    8-ch: front/clfe/rear/side|fc
3415          */
3416         switch (cfg->line_outs) {
3417         case 3:
3418         case 4:
3419                 nid = cfg->line_out_pins[1];
3420                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
3421                 cfg->line_out_pins[2] = nid;
3422                 break;
3423         }
3424
3425         /*
3426          * debug prints of the parsed results
3427          */
3428         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3429                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
3430                    cfg->line_out_pins[2], cfg->line_out_pins[3],
3431                    cfg->line_out_pins[4]);
3432         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3433                    cfg->speaker_outs, cfg->speaker_pins[0],
3434                    cfg->speaker_pins[1], cfg->speaker_pins[2],
3435                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
3436         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
3437                    cfg->hp_outs, cfg->hp_pins[0],
3438                    cfg->hp_pins[1], cfg->hp_pins[2],
3439                    cfg->hp_pins[3], cfg->hp_pins[4]);
3440         snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
3441         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
3442                    " cd=0x%x, aux=0x%x\n",
3443                    cfg->input_pins[AUTO_PIN_MIC],
3444                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
3445                    cfg->input_pins[AUTO_PIN_LINE],
3446                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
3447                    cfg->input_pins[AUTO_PIN_CD],
3448                    cfg->input_pins[AUTO_PIN_AUX]);
3449
3450         return 0;
3451 }
3452 EXPORT_SYMBOL_HDA(snd_hda_parse_pin_def_config);
3453
3454 /* labels for input pins */
3455 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
3456         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
3457 };
3458 EXPORT_SYMBOL_HDA(auto_pin_cfg_labels);
3459
3460
3461 #ifdef CONFIG_PM
3462 /*
3463  * power management
3464  */
3465
3466 /**
3467  * snd_hda_suspend - suspend the codecs
3468  * @bus: the HDA bus
3469  * @state: suspsend state
3470  *
3471  * Returns 0 if successful.
3472  */
3473 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
3474 {
3475         struct hda_codec *codec;
3476
3477         list_for_each_entry(codec, &bus->codec_list, list) {
3478 #ifdef CONFIG_SND_HDA_POWER_SAVE
3479                 if (!codec->power_on)
3480                         continue;
3481 #endif
3482                 hda_call_codec_suspend(codec);
3483         }
3484         return 0;
3485 }
3486 EXPORT_SYMBOL_HDA(snd_hda_suspend);
3487
3488 /**
3489  * snd_hda_resume - resume the codecs
3490  * @bus: the HDA bus
3491  *
3492  * Returns 0 if successful.
3493  *
3494  * This fucntion is defined only when POWER_SAVE isn't set.
3495  * In the power-save mode, the codec is resumed dynamically.
3496  */
3497 int snd_hda_resume(struct hda_bus *bus)
3498 {
3499         struct hda_codec *codec;
3500
3501         list_for_each_entry(codec, &bus->codec_list, list) {
3502                 if (snd_hda_codec_needs_resume(codec))
3503                         hda_call_codec_resume(codec);
3504         }
3505         return 0;
3506 }
3507 EXPORT_SYMBOL_HDA(snd_hda_resume);
3508 #endif /* CONFIG_PM */
3509
3510 /*
3511  * generic arrays
3512  */
3513
3514 /* get a new element from the given array
3515  * if it exceeds the pre-allocated array size, re-allocate the array
3516  */
3517 void *snd_array_new(struct snd_array *array)
3518 {
3519         if (array->used >= array->alloced) {
3520                 int num = array->alloced + array->alloc_align;
3521                 void *nlist;
3522                 if (snd_BUG_ON(num >= 4096))
3523                         return NULL;
3524                 nlist = kcalloc(num + 1, array->elem_size, GFP_KERNEL);
3525                 if (!nlist)
3526                         return NULL;
3527                 if (array->list) {
3528                         memcpy(nlist, array->list,
3529                                array->elem_size * array->alloced);
3530                         kfree(array->list);
3531                 }
3532                 array->list = nlist;
3533                 array->alloced = num;
3534         }
3535         return snd_array_elem(array, array->used++);
3536 }
3537 EXPORT_SYMBOL_HDA(snd_array_new);
3538
3539 /* free the given array elements */
3540 void snd_array_free(struct snd_array *array)
3541 {
3542         kfree(array->list);
3543         array->used = 0;
3544         array->alloced = 0;
3545         array->list = NULL;
3546 }
3547 EXPORT_SYMBOL_HDA(snd_array_free);
3548
3549 /*
3550  * used by hda_proc.c and hda_eld.c
3551  */
3552 void snd_print_pcm_rates(int pcm, char *buf, int buflen)
3553 {
3554         static unsigned int rates[] = {
3555                 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
3556                 96000, 176400, 192000, 384000
3557         };
3558         int i, j;
3559
3560         for (i = 0, j = 0; i < ARRAY_SIZE(rates); i++)
3561                 if (pcm & (1 << i))
3562                         j += snprintf(buf + j, buflen - j,  " %d", rates[i]);
3563
3564         buf[j] = '\0'; /* necessary when j == 0 */
3565 }
3566 EXPORT_SYMBOL_HDA(snd_print_pcm_rates);
3567
3568 void snd_print_pcm_bits(int pcm, char *buf, int buflen)
3569 {
3570         static unsigned int bits[] = { 8, 16, 20, 24, 32 };
3571         int i, j;
3572
3573         for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
3574                 if (pcm & (AC_SUPPCM_BITS_8 << i))
3575                         j += snprintf(buf + j, buflen - j,  " %d", bits[i]);
3576
3577         buf[j] = '\0'; /* necessary when j == 0 */
3578 }
3579 EXPORT_SYMBOL_HDA(snd_print_pcm_bits);
3580
3581 MODULE_DESCRIPTION("HDA codec core");
3582 MODULE_LICENSE("GPL");