LXR linux/sound/pci/hda/hda

   1/*
   2 * Universal Interface for Intel High Definition Audio Codec
   3 *
   4 * Local helper functions
   5 *
   6 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   7 *
   8 *  This program is free software; you can redistribute it and/or modify it
   9 *  under the terms of the GNU General Public License as published by the Free
  10 *  Software Foundation; either version 2 of the License, or (at your option)
  11 *  any later version.
  12 *
  13 *  This program is distributed in the hope that it will be useful, but WITHOUT
  14 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16 *  more details.
  17 *
  18 *  You should have received a copy of the GNU General Public License along with
  19 *  this program; if not, write to the Free Software Foundation, Inc., 59
  20 *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 */
  22
  23#ifndef __SOUND_HDA_LOCAL_H
  24#define __SOUND_HDA_LOCAL_H
  25
  26/*
  27 * for mixer controls
  28 */
  29#define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs)            \
  30        ((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
  31#define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
  32        HDA_COMPOSE_AMP_VAL_OFS(nid, chs, idx, dir, 0)
  33/* mono volume with index (index=0,1,...) (channel=1,2) */
  34#define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
  35        { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx,  \
  36          .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
  37                    SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  38                    SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
  39          .info = snd_hda_mixer_amp_volume_info, \
  40          .get = snd_hda_mixer_amp_volume_get, \
  41          .put = snd_hda_mixer_amp_volume_put, \
  42          .tlv = { .c = snd_hda_mixer_amp_tlv },                \
  43          .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
  44/* stereo volume with index */
  45#define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
  46        HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
  47/* mono volume */
  48#define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
  49        HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction)
  50/* stereo volume */
  51#define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
  52        HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
  53/* mono mute switch with index (index=0,1,...) (channel=1,2) */
  54#define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
  55        { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
  56          .info = snd_hda_mixer_amp_switch_info, \
  57          .get = snd_hda_mixer_amp_switch_get, \
  58          .put = snd_hda_mixer_amp_switch_put, \
  59          .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
  60/* stereo mute switch with index */
  61#define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
  62        HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
  63/* mono mute switch */
  64#define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
  65        HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
  66/* stereo mute switch */
  67#define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
  68        HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
  69
  70int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
  71                                  struct snd_ctl_elem_info *uinfo);
  72int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
  73                                 struct snd_ctl_elem_value *ucontrol);
  74int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
  75                                 struct snd_ctl_elem_value *ucontrol);
  76int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
  77                          unsigned int size, unsigned int __user *tlv);
  78int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
  79                                  struct snd_ctl_elem_info *uinfo);
  80int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
  81                                 struct snd_ctl_elem_value *ucontrol);
  82int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
  83                                 struct snd_ctl_elem_value *ucontrol);
  84/* lowlevel accessor with caching; use carefully */
  85int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
  86                           int direction, int index);
  87int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
  88                             int direction, int idx, int mask, int val);
  89int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
  90                             int dir, int idx, int mask, int val);
  91#ifdef SND_HDA_NEEDS_RESUME
  92void snd_hda_codec_resume_amp(struct hda_codec *codec);
  93#endif
  94
  95void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
  96                             unsigned int *tlv);
  97struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
  98                                            const char *name);
  99int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
 100                        unsigned int *tlv, const char **slaves);
 101int snd_hda_codec_reset(struct hda_codec *codec);
 102
 103/* amp value bits */
 104#define HDA_AMP_MUTE    0x80
 105#define HDA_AMP_UNMUTE  0x00
 106#define HDA_AMP_VOLMASK 0x7f
 107
 108/* mono switch binding multiple inputs */
 109#define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
 110        { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0,  \
 111          .info = snd_hda_mixer_amp_switch_info, \
 112          .get = snd_hda_mixer_bind_switch_get, \
 113          .put = snd_hda_mixer_bind_switch_put, \
 114          .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, indices, direction) }
 115
 116/* stereo switch binding multiple inputs */
 117#define HDA_BIND_MUTE(xname,nid,indices,dir) \
 118        HDA_BIND_MUTE_MONO(xname,nid,3,indices,dir)
 119
 120int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
 121                                  struct snd_ctl_elem_value *ucontrol);
 122int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
 123                                  struct snd_ctl_elem_value *ucontrol);
 124
 125/* more generic bound controls */
 126struct hda_ctl_ops {
 127        snd_kcontrol_info_t *info;
 128        snd_kcontrol_get_t *get;
 129        snd_kcontrol_put_t *put;
 130        snd_kcontrol_tlv_rw_t *tlv;
 131};
 132
 133extern struct hda_ctl_ops snd_hda_bind_vol;     /* for bind-volume with TLV */
 134extern struct hda_ctl_ops snd_hda_bind_sw;      /* for bind-switch */
 135
 136struct hda_bind_ctls {
 137        struct hda_ctl_ops *ops;
 138        unsigned long values[];
 139};
 140
 141int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
 142                                 struct snd_ctl_elem_info *uinfo);
 143int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
 144                                struct snd_ctl_elem_value *ucontrol);
 145int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
 146                                struct snd_ctl_elem_value *ucontrol);
 147int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 148                           unsigned int size, unsigned int __user *tlv);
 149
 150#define HDA_BIND_VOL(xname, bindrec) \
 151        { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 152          .name = xname, \
 153          .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\
 154                          SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 155                          SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,\
 156          .info = snd_hda_mixer_bind_ctls_info,\
 157          .get =  snd_hda_mixer_bind_ctls_get,\
 158          .put = snd_hda_mixer_bind_ctls_put,\
 159          .tlv = { .c = snd_hda_mixer_bind_tlv },\
 160          .private_value = (long) (bindrec) }
 161#define HDA_BIND_SW(xname, bindrec) \
 162        { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 163          .name = xname, \
 164          .info = snd_hda_mixer_bind_ctls_info,\
 165          .get =  snd_hda_mixer_bind_ctls_get,\
 166          .put = snd_hda_mixer_bind_ctls_put,\
 167          .private_value = (long) (bindrec) }
 168
 169/*
 170 * SPDIF I/O
 171 */
 172int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid);
 173int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
 174
 175/*
 176 * input MUX helper
 177 */
 178#define HDA_MAX_NUM_INPUTS      16
 179struct hda_input_mux_item {
 180        const char *label;
 181        unsigned int index;
 182};
 183struct hda_input_mux {
 184        unsigned int num_items;
 185        struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
 186};
 187
 188int snd_hda_input_mux_info(const struct hda_input_mux *imux,
 189                           struct snd_ctl_elem_info *uinfo);
 190int snd_hda_input_mux_put(struct hda_codec *codec,
 191                          const struct hda_input_mux *imux,
 192                          struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
 193                          unsigned int *cur_val);
 194
 195/*
 196 * Channel mode helper
 197 */
 198struct hda_channel_mode {
 199        int channels;
 200        const struct hda_verb *sequence;
 201};
 202
 203int snd_hda_ch_mode_info(struct hda_codec *codec,
 204                         struct snd_ctl_elem_info *uinfo,
 205                         const struct hda_channel_mode *chmode,
 206                         int num_chmodes);
 207int snd_hda_ch_mode_get(struct hda_codec *codec,
 208                        struct snd_ctl_elem_value *ucontrol,
 209                        const struct hda_channel_mode *chmode,
 210                        int num_chmodes,
 211                        int max_channels);
 212int snd_hda_ch_mode_put(struct hda_codec *codec,
 213                        struct snd_ctl_elem_value *ucontrol,
 214                        const struct hda_channel_mode *chmode,
 215                        int num_chmodes,
 216                        int *max_channelsp);
 217
 218/*
 219 * Multi-channel / digital-out PCM helper
 220 */
 221
 222enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
 223enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
 224
 225struct hda_multi_out {
 226        int num_dacs;           /* # of DACs, must be more than 1 */
 227        hda_nid_t *dac_nids;    /* DAC list */
 228        hda_nid_t hp_nid;       /* optional DAC for HP, 0 when not exists */
 229        hda_nid_t extra_out_nid[3];     /* optional DACs, 0 when not exists */
 230        hda_nid_t dig_out_nid;  /* digital out audio widget */
 231        hda_nid_t *slave_dig_outs;
 232        int max_channels;       /* currently supported analog channels */
 233        int dig_out_used;       /* current usage of digital out (HDA_DIG_XXX) */
 234        int no_share_stream;    /* don't share a stream with multiple pins */
 235        int share_spdif;        /* share SPDIF pin */
 236        /* PCM information for both analog and SPDIF DACs */
 237        unsigned int analog_rates;
 238        unsigned int analog_maxbps;
 239        u64 analog_formats;
 240        unsigned int spdif_rates;
 241        unsigned int spdif_maxbps;
 242        u64 spdif_formats;
 243};
 244
 245int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
 246                                  struct hda_multi_out *mout);
 247int snd_hda_multi_out_dig_open(struct hda_codec *codec,
 248                               struct hda_multi_out *mout);
 249int snd_hda_multi_out_dig_close(struct hda_codec *codec,
 250                                struct hda_multi_out *mout);
 251int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
 252                                  struct hda_multi_out *mout,
 253                                  unsigned int stream_tag,
 254                                  unsigned int format,
 255                                  struct snd_pcm_substream *substream);
 256int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
 257                                  struct hda_multi_out *mout);
 258int snd_hda_multi_out_analog_open(struct hda_codec *codec,
 259                                  struct hda_multi_out *mout,
 260                                  struct snd_pcm_substream *substream,
 261                                  struct hda_pcm_stream *hinfo);
 262int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
 263                                     struct hda_multi_out *mout,
 264                                     unsigned int stream_tag,
 265                                     unsigned int format,
 266                                     struct snd_pcm_substream *substream);
 267int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
 268                                     struct hda_multi_out *mout);
 269
 270/*
 271 * generic codec parser
 272 */
 273#ifdef CONFIG_SND_HDA_GENERIC
 274int snd_hda_parse_generic_codec(struct hda_codec *codec);
 275#else
 276static inline int snd_hda_parse_generic_codec(struct hda_codec *codec)
 277{
 278        return -ENODEV;
 279}
 280#endif
 281
 282/*
 283 * generic proc interface
 284 */
 285#ifdef CONFIG_PROC_FS
 286int snd_hda_codec_proc_new(struct hda_codec *codec);
 287#else
 288static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
 289#endif
 290
 291#define SND_PRINT_RATES_ADVISED_BUFSIZE 80
 292void snd_print_pcm_rates(int pcm, char *buf, int buflen);
 293
 294#define SND_PRINT_BITS_ADVISED_BUFSIZE  16
 295void snd_print_pcm_bits(int pcm, char *buf, int buflen);
 296
 297/*
 298 * Misc
 299 */
 300int snd_hda_check_board_config(struct hda_codec *codec, int num_configs,
 301                               const char **modelnames,
 302                               const struct snd_pci_quirk *pci_list);
 303int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
 304                               int num_configs, const char **models,
 305                               const struct snd_pci_quirk *tbl);
 306int snd_hda_add_new_ctls(struct hda_codec *codec,
 307                         struct snd_kcontrol_new *knew);
 308
 309/*
 310 * unsolicited event handler
 311 */
 312
 313#define HDA_UNSOL_QUEUE_SIZE    64
 314
 315struct hda_bus_unsolicited {
 316        /* ring buffer */
 317        u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
 318        unsigned int rp, wp;
 319
 320        /* workqueue */
 321        struct work_struct work;
 322        struct hda_bus *bus;
 323};
 324
 325/*
 326 * Helper for automatic ping configuration
 327 */
 328
 329enum {
 330        AUTO_PIN_MIC,
 331        AUTO_PIN_FRONT_MIC,
 332        AUTO_PIN_LINE,
 333        AUTO_PIN_FRONT_LINE,
 334        AUTO_PIN_CD,
 335        AUTO_PIN_AUX,
 336        AUTO_PIN_LAST
 337};
 338
 339enum {
 340        AUTO_PIN_LINE_OUT,
 341        AUTO_PIN_SPEAKER_OUT,
 342        AUTO_PIN_HP_OUT
 343};
 344
 345extern const char *auto_pin_cfg_labels[AUTO_PIN_LAST];
 346
 347#define AUTO_CFG_MAX_OUTS       5
 348
 349struct auto_pin_cfg {
 350        int line_outs;
 351        /* sorted in the order of Front/Surr/CLFE/Side */
 352        hda_nid_t line_out_pins[AUTO_CFG_MAX_OUTS];
 353        int speaker_outs;
 354        hda_nid_t speaker_pins[AUTO_CFG_MAX_OUTS];
 355        int hp_outs;
 356        int line_out_type;      /* AUTO_PIN_XXX_OUT */
 357        hda_nid_t hp_pins[AUTO_CFG_MAX_OUTS];
 358        hda_nid_t input_pins[AUTO_PIN_LAST];
 359        int dig_outs;
 360        hda_nid_t dig_out_pins[2];
 361        hda_nid_t dig_in_pin;
 362        hda_nid_t mono_out_pin;
 363        int dig_out_type[2]; /* HDA_PCM_TYPE_XXX */
 364        int dig_in_type; /* HDA_PCM_TYPE_XXX */
 365};
 366
 367#define get_defcfg_connect(cfg) \
 368        ((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
 369#define get_defcfg_association(cfg) \
 370        ((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
 371#define get_defcfg_location(cfg) \
 372        ((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
 373#define get_defcfg_sequence(cfg) \
 374        (cfg & AC_DEFCFG_SEQUENCE)
 375#define get_defcfg_device(cfg) \
 376        ((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
 377
 378int snd_hda_parse_pin_def_config(struct hda_codec *codec,
 379                                 struct auto_pin_cfg *cfg,
 380                                 hda_nid_t *ignore_nids);
 381
 382/* amp values */
 383#define AMP_IN_MUTE(idx)        (0x7080 | ((idx)<<8))
 384#define AMP_IN_UNMUTE(idx)      (0x7000 | ((idx)<<8))
 385#define AMP_OUT_MUTE            0xb080
 386#define AMP_OUT_UNMUTE          0xb000
 387#define AMP_OUT_ZERO            0xb000
 388/* pinctl values */
 389#define PIN_IN                  (AC_PINCTL_IN_EN)
 390#define PIN_VREFHIZ             (AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
 391#define PIN_VREF50              (AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
 392#define PIN_VREFGRD             (AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
 393#define PIN_VREF80              (AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
 394#define PIN_VREF100             (AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
 395#define PIN_OUT                 (AC_PINCTL_OUT_EN)
 396#define PIN_HP                  (AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
 397#define PIN_HP_AMP              (AC_PINCTL_HP_EN)
 398
 399/*
 400 * get widget capabilities
 401 */
 402static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
 403{
 404        if (nid < codec->start_nid ||
 405            nid >= codec->start_nid + codec->num_nodes)
 406                return 0;
 407        return codec->wcaps[nid - codec->start_nid];
 408}
 409
 410/* get the widget type from widget capability bits */
 411#define get_wcaps_type(wcaps) (((wcaps) & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT)
 412
 413static inline unsigned int get_wcaps_channels(u32 wcaps)
 414{
 415        unsigned int chans;
 416
 417        chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
 418        chans = ((chans << 1) | 1) + 1;
 419
 420        return chans;
 421}
 422
 423u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
 424int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 425                              unsigned int caps);
 426u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid);
 427
 428int snd_hda_ctl_add(struct hda_codec *codec, struct snd_kcontrol *kctl);
 429void snd_hda_ctls_clear(struct hda_codec *codec);
 430
 431/*
 432 * hwdep interface
 433 */
 434#ifdef CONFIG_SND_HDA_HWDEP
 435int snd_hda_create_hwdep(struct hda_codec *codec);
 436#else
 437static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
 438#endif
 439
 440#ifdef CONFIG_SND_HDA_RECONFIG
 441int snd_hda_hwdep_add_sysfs(struct hda_codec *codec);
 442#else
 443static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
 444{
 445        return 0;
 446}
 447#endif
 448
 449#ifdef CONFIG_SND_HDA_RECONFIG
 450const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
 451int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
 452#else
 453static inline
 454const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
 455{
 456        return NULL;
 457}
 458
 459static inline
 460int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
 461{
 462        return -ENOENT;
 463}
 464#endif
 465
 466/*
 467 * power-management
 468 */
 469
 470#ifdef CONFIG_SND_HDA_POWER_SAVE
 471void snd_hda_schedule_power_save(struct hda_codec *codec);
 472
 473struct hda_amp_list {
 474        hda_nid_t nid;
 475        unsigned char dir;
 476        unsigned char idx;
 477};
 478
 479struct hda_loopback_check {
 480        struct hda_amp_list *amplist;
 481        int power_on;
 482};
 483
 484int snd_hda_check_amp_list_power(struct hda_codec *codec,
 485                                 struct hda_loopback_check *check,
 486                                 hda_nid_t nid);
 487#endif /* CONFIG_SND_HDA_POWER_SAVE */
 488
 489/*
 490 * AMP control callbacks
 491 */
 492/* retrieve parameters from private_value */
 493#define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 494#define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 495#define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 496#define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 497#define get_amp_offset(kc)      (((kc)->private_value >> 23) & 0x3f)
 498
 499/*
 500 * CEA Short Audio Descriptor data
 501 */
 502struct cea_sad {
 503        int     channels;
 504        int     format;         /* (format == 0) indicates invalid SAD */
 505        int     rates;
 506        int     sample_bits;    /* for LPCM */
 507        int     max_bitrate;    /* for AC3...ATRAC */
 508        int     profile;        /* for WMAPRO */
 509};
 510
 511#define ELD_FIXED_BYTES 20
 512#define ELD_MAX_MNL     16
 513#define ELD_MAX_SAD     16
 514
 515/*
 516 * ELD: EDID Like Data
 517 */
 518struct hdmi_eld {
 519        int     eld_size;
 520        int     baseline_len;
 521        int     eld_ver;        /* (eld_ver == 0) indicates invalid ELD */
 522        int     cea_edid_ver;
 523        char    monitor_name[ELD_MAX_MNL + 1];
 524        int     manufacture_id;
 525        int     product_id;
 526        u64     port_id;
 527        int     support_hdcp;
 528        int     support_ai;
 529        int     conn_type;
 530        int     aud_synch_delay;
 531        int     spk_alloc;
 532        int     sad_count;
 533        struct cea_sad sad[ELD_MAX_SAD];
 534#ifdef CONFIG_PROC_FS
 535        struct snd_info_entry *proc_entry;
 536#endif
 537};
 538
 539int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
 540int snd_hdmi_get_eld(struct hdmi_eld *, struct hda_codec *, hda_nid_t);
 541void snd_hdmi_show_eld(struct hdmi_eld *eld);
 542
 543#ifdef CONFIG_PROC_FS
 544int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld);
 545void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld);
 546#else
 547static inline int snd_hda_eld_proc_new(struct hda_codec *codec,
 548                                       struct hdmi_eld *eld)
 549{
 550        return 0;
 551}
 552static inline void snd_hda_eld_proc_free(struct hda_codec *codec,
 553                                         struct hdmi_eld *eld)
 554{
 555}
 556#endif
 557
 558#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
 559void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
 560
 561#endif /* __SOUND_HDA_LOCAL_H */
 562