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hda_local.h

/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Local helper functions
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License as published by the Free
 *  Software Foundation; either version 2 of the License, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 *  more details.
 *
 *  You should have received a copy of the GNU General Public License along with
 *  this program; if not, write to the Free Software Foundation, Inc., 59
 *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef __SOUND_HDA_LOCAL_H
#define __SOUND_HDA_LOCAL_H

/* We abuse kcontrol_new.subdev field to pass the NID corresponding to
 * the given new control.  If id.subdev has a bit flag HDA_SUBDEV_NID_FLAG,
 * snd_hda_ctl_add() takes the lower-bit subdev value as a valid NID.
 * 
 * Note that the subdevice field is cleared again before the real registration
 * in snd_hda_ctl_add(), so that this value won't appear in the outside.
 */
#define HDA_SUBDEV_NID_FLAG   (1U << 31)
#define HDA_SUBDEV_AMP_FLAG   (1U << 30)

/*
 * for mixer controls
 */
#define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs)        \
      ((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
#define HDA_AMP_VAL_MIN_MUTE (1<<29)
#define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
      HDA_COMPOSE_AMP_VAL_OFS(nid, chs, idx, dir, 0)
/* mono volume with index (index=0,1,...) (channel=1,2) */
#define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, dir, flags) \
      { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx,  \
        .subdevice = HDA_SUBDEV_AMP_FLAG, \
        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
                SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
                SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
        .info = snd_hda_mixer_amp_volume_info, \
        .get = snd_hda_mixer_amp_volume_get, \
        .put = snd_hda_mixer_amp_volume_put, \
        .tlv = { .c = snd_hda_mixer_amp_tlv },        \
        .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, dir) | flags }
/* stereo volume with index */
#define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
      HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction, 0)
/* mono volume */
#define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
      HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction, 0)
/* stereo volume */
#define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
      HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
/* stereo volume with min=mute */
#define HDA_CODEC_VOLUME_MIN_MUTE(xname, nid, xindex, direction) \
      HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, 3, xindex, direction, \
                          HDA_AMP_VAL_MIN_MUTE)
/* mono mute switch with index (index=0,1,...) (channel=1,2) */
#define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
      { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
        .subdevice = HDA_SUBDEV_AMP_FLAG, \
        .info = snd_hda_mixer_amp_switch_info, \
        .get = snd_hda_mixer_amp_switch_get, \
        .put = snd_hda_mixer_amp_switch_put, \
        .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
/* stereo mute switch with index */
#define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
      HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
/* mono mute switch */
#define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
      HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
/* stereo mute switch */
#define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
      HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
#ifdef CONFIG_SND_HDA_INPUT_BEEP
/* special beep mono mute switch with index (index=0,1,...) (channel=1,2) */
#define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
      { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
        .subdevice = HDA_SUBDEV_AMP_FLAG, \
        .info = snd_hda_mixer_amp_switch_info, \
        .get = snd_hda_mixer_amp_switch_get, \
        .put = snd_hda_mixer_amp_switch_put_beep, \
        .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
#else
/* no digital beep - just the standard one */
#define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, ch, xidx, dir) \
      HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, ch, xidx, dir)
#endif /* CONFIG_SND_HDA_INPUT_BEEP */
/* special beep mono mute switch */
#define HDA_CODEC_MUTE_BEEP_MONO(xname, nid, channel, xindex, direction) \
      HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, 0, nid, channel, xindex, direction)
/* special beep stereo mute switch */
#define HDA_CODEC_MUTE_BEEP(xname, nid, xindex, direction) \
      HDA_CODEC_MUTE_BEEP_MONO(xname, nid, 3, xindex, direction)

extern const char *snd_hda_pcm_type_name[];

int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_info *uinfo);
int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
                    unsigned int size, unsigned int __user *tlv);
int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_info *uinfo);
int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_value *ucontrol);
#ifdef CONFIG_SND_HDA_INPUT_BEEP
int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
                              struct snd_ctl_elem_value *ucontrol);
#endif
/* lowlevel accessor with caching; use carefully */
int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
                     int direction, int index);
int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
                       int direction, int idx, int mask, int val);
int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
                       int dir, int idx, int mask, int val);
#ifdef SND_HDA_NEEDS_RESUME
void snd_hda_codec_resume_amp(struct hda_codec *codec);
#endif

void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
                       unsigned int *tlv);
struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
                                  const char *name);
int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
                  unsigned int *tlv, const char * const *slaves);
int snd_hda_codec_reset(struct hda_codec *codec);

/* amp value bits */
#define HDA_AMP_MUTE    0x80
#define HDA_AMP_UNMUTE  0x00
#define HDA_AMP_VOLMASK 0x7f

/* mono switch binding multiple inputs */
#define HDA_BIND_MUTE_MONO(xname, nid, channel, indices, direction) \
      { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0,  \
        .info = snd_hda_mixer_amp_switch_info, \
        .get = snd_hda_mixer_bind_switch_get, \
        .put = snd_hda_mixer_bind_switch_put, \
        .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, indices, direction) }

/* stereo switch binding multiple inputs */
#define HDA_BIND_MUTE(xname,nid,indices,dir) \
      HDA_BIND_MUTE_MONO(xname,nid,3,indices,dir)

int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_value *ucontrol);

/* more generic bound controls */
00169 struct hda_ctl_ops {
      snd_kcontrol_info_t *info;
      snd_kcontrol_get_t *get;
      snd_kcontrol_put_t *put;
      snd_kcontrol_tlv_rw_t *tlv;
};

extern struct hda_ctl_ops snd_hda_bind_vol;     /* for bind-volume with TLV */
extern struct hda_ctl_ops snd_hda_bind_sw;      /* for bind-switch */

00179 struct hda_bind_ctls {
      struct hda_ctl_ops *ops;
      unsigned long values[];
};

int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_info *uinfo);
int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol);
int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
                     unsigned int size, unsigned int __user *tlv);

#define HDA_BIND_VOL(xname, bindrec) \
      { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
        .name = xname, \
        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |\
                    SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
                    SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,\
        .info = snd_hda_mixer_bind_ctls_info,\
        .get =  snd_hda_mixer_bind_ctls_get,\
        .put = snd_hda_mixer_bind_ctls_put,\
        .tlv = { .c = snd_hda_mixer_bind_tlv },\
        .private_value = (long) (bindrec) }
#define HDA_BIND_SW(xname, bindrec) \
      { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
        .name = xname, \
        .info = snd_hda_mixer_bind_ctls_info,\
        .get =  snd_hda_mixer_bind_ctls_get,\
        .put = snd_hda_mixer_bind_ctls_put,\
        .private_value = (long) (bindrec) }

/*
 * SPDIF I/O
 */
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);

/*
 * input MUX helper
 */
#define HDA_MAX_NUM_INPUTS    16
00222 struct hda_input_mux_item {
      char label[32];
      unsigned int index;
};
00226 struct hda_input_mux {
      unsigned int num_items;
      struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
};

int snd_hda_input_mux_info(const struct hda_input_mux *imux,
                     struct snd_ctl_elem_info *uinfo);
int snd_hda_input_mux_put(struct hda_codec *codec,
                    const struct hda_input_mux *imux,
                    struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
                    unsigned int *cur_val);

/*
 * Channel mode helper
 */
00241 struct hda_channel_mode {
      int channels;
      const struct hda_verb *sequence;
};

int snd_hda_ch_mode_info(struct hda_codec *codec,
                   struct snd_ctl_elem_info *uinfo,
                   const struct hda_channel_mode *chmode,
                   int num_chmodes);
int snd_hda_ch_mode_get(struct hda_codec *codec,
                  struct snd_ctl_elem_value *ucontrol,
                  const struct hda_channel_mode *chmode,
                  int num_chmodes,
                  int max_channels);
int snd_hda_ch_mode_put(struct hda_codec *codec,
                  struct snd_ctl_elem_value *ucontrol,
                  const struct hda_channel_mode *chmode,
                  int num_chmodes,
                  int *max_channelsp);

/*
 * Multi-channel / digital-out PCM helper
 */

enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */

00268 struct hda_multi_out {
      int num_dacs;           /* # of DACs, must be more than 1 */
      hda_nid_t *dac_nids;    /* DAC list */
      hda_nid_t hp_nid; /* optional DAC for HP, 0 when not exists */
      hda_nid_t extra_out_nid[3];   /* optional DACs, 0 when not exists */
      hda_nid_t dig_out_nid;  /* digital out audio widget */
      hda_nid_t *slave_dig_outs;
      int max_channels; /* currently supported analog channels */
      int dig_out_used; /* current usage of digital out (HDA_DIG_XXX) */
      int no_share_stream;    /* don't share a stream with multiple pins */
      int share_spdif;  /* share SPDIF pin */
      /* PCM information for both analog and SPDIF DACs */
      unsigned int analog_rates;
      unsigned int analog_maxbps;
      u64 analog_formats;
      unsigned int spdif_rates;
      unsigned int spdif_maxbps;
      u64 spdif_formats;
};

int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
                          struct hda_multi_out *mout);
int snd_hda_multi_out_dig_open(struct hda_codec *codec,
                         struct hda_multi_out *mout);
int snd_hda_multi_out_dig_close(struct hda_codec *codec,
                        struct hda_multi_out *mout);
int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
                          struct hda_multi_out *mout,
                          unsigned int stream_tag,
                          unsigned int format,
                          struct snd_pcm_substream *substream);
int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
                          struct hda_multi_out *mout);
int snd_hda_multi_out_analog_open(struct hda_codec *codec,
                          struct hda_multi_out *mout,
                          struct snd_pcm_substream *substream,
                          struct hda_pcm_stream *hinfo);
int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
                             struct hda_multi_out *mout,
                             unsigned int stream_tag,
                             unsigned int format,
                             struct snd_pcm_substream *substream);
int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
                             struct hda_multi_out *mout);

/*
 * generic codec parser
 */
#ifdef CONFIG_SND_HDA_GENERIC
int snd_hda_parse_generic_codec(struct hda_codec *codec);
#else
static inline int snd_hda_parse_generic_codec(struct hda_codec *codec)
{
      return -ENODEV;
}
#endif

/*
 * generic proc interface
 */
#ifdef CONFIG_PROC_FS
int snd_hda_codec_proc_new(struct hda_codec *codec);
#else
static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
#endif

#define SND_PRINT_RATES_ADVISED_BUFSIZE   80
void snd_print_pcm_rates(int pcm, char *buf, int buflen);

#define SND_PRINT_BITS_ADVISED_BUFSIZE    16
void snd_print_pcm_bits(int pcm, char *buf, int buflen);

/*
 * Misc
 */
int snd_hda_check_board_config(struct hda_codec *codec, int num_configs,
                         const char * const *modelnames,
                         const struct snd_pci_quirk *pci_list);
int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
                               int num_configs, const char * const *models,
                               const struct snd_pci_quirk *tbl);
int snd_hda_add_new_ctls(struct hda_codec *codec,
                   struct snd_kcontrol_new *knew);

/*
 * unsolicited event handler
 */

#define HDA_UNSOL_QUEUE_SIZE  64

00358 struct hda_bus_unsolicited {
      /* ring buffer */
      u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
      unsigned int rp, wp;

      /* workqueue */
      struct work_struct work;
      struct hda_bus *bus;
};

/*
 * Helper for automatic pin configuration
 */

enum {
      AUTO_PIN_MIC,
      AUTO_PIN_LINE_IN,
      AUTO_PIN_CD,
      AUTO_PIN_AUX,
      AUTO_PIN_LAST
};

enum {
      AUTO_PIN_LINE_OUT,
      AUTO_PIN_SPEAKER_OUT,
      AUTO_PIN_HP_OUT
};

#define AUTO_CFG_MAX_OUTS     5
#define AUTO_CFG_MAX_INS      8

00389 struct auto_pin_cfg_item {
      hda_nid_t pin;
      int type;
};

struct auto_pin_cfg;
const char *hda_get_input_pin_label(struct hda_codec *codec, hda_nid_t pin,
                            int check_location);
const char *hda_get_autocfg_input_label(struct hda_codec *codec,
                              const struct auto_pin_cfg *cfg,
                              int input);
int snd_hda_add_imux_item(struct hda_input_mux *imux, const char *label,
                    int index, int *type_index_ret);

enum {
      INPUT_PIN_ATTR_UNUSED,  /* pin not connected */
      INPUT_PIN_ATTR_INT,     /* internal mic/line-in */
      INPUT_PIN_ATTR_DOCK,    /* docking mic/line-in */
      INPUT_PIN_ATTR_NORMAL,  /* mic/line-in jack */
      INPUT_PIN_ATTR_FRONT,   /* mic/line-in jack in front */
      INPUT_PIN_ATTR_REAR,    /* mic/line-in jack in rear */
};

int snd_hda_get_input_pin_attr(unsigned int def_conf);

00414 struct auto_pin_cfg {
      int line_outs;
      /* sorted in the order of Front/Surr/CLFE/Side */
      hda_nid_t line_out_pins[AUTO_CFG_MAX_OUTS];
      int speaker_outs;
      hda_nid_t speaker_pins[AUTO_CFG_MAX_OUTS];
      int hp_outs;
      int line_out_type;      /* AUTO_PIN_XXX_OUT */
      hda_nid_t hp_pins[AUTO_CFG_MAX_OUTS];
      int num_inputs;
      struct auto_pin_cfg_item inputs[AUTO_CFG_MAX_INS];
      int dig_outs;
      hda_nid_t dig_out_pins[2];
      hda_nid_t dig_in_pin;
      hda_nid_t mono_out_pin;
      int dig_out_type[2]; /* HDA_PCM_TYPE_XXX */
      int dig_in_type; /* HDA_PCM_TYPE_XXX */
};

#define get_defcfg_connect(cfg) \
      ((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
#define get_defcfg_association(cfg) \
      ((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
#define get_defcfg_location(cfg) \
      ((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
#define get_defcfg_sequence(cfg) \
      (cfg & AC_DEFCFG_SEQUENCE)
#define get_defcfg_device(cfg) \
      ((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)

int snd_hda_parse_pin_def_config(struct hda_codec *codec,
                         struct auto_pin_cfg *cfg,
                         hda_nid_t *ignore_nids);

/* amp values */
#define AMP_IN_MUTE(idx)      (0x7080 | ((idx)<<8))
#define AMP_IN_UNMUTE(idx)    (0x7000 | ((idx)<<8))
#define AMP_OUT_MUTE          0xb080
#define AMP_OUT_UNMUTE        0xb000
#define AMP_OUT_ZERO          0xb000
/* pinctl values */
#define PIN_IN                (AC_PINCTL_IN_EN)
#define PIN_VREFHIZ           (AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
#define PIN_VREF50            (AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
#define PIN_VREFGRD           (AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
#define PIN_VREF80            (AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
#define PIN_VREF100           (AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
#define PIN_OUT               (AC_PINCTL_OUT_EN)
#define PIN_HP                (AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
#define PIN_HP_AMP            (AC_PINCTL_HP_EN)

/*
 * get widget capabilities
 */
static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
{
      if (nid < codec->start_nid ||
          nid >= codec->start_nid + codec->num_nodes)
            return 0;
      return codec->wcaps[nid - codec->start_nid];
}

/* get the widget type from widget capability bits */
#define get_wcaps_type(wcaps) (((wcaps) & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT)

static inline unsigned int get_wcaps_channels(u32 wcaps)
{
      unsigned int chans;

      chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
      chans = ((chans << 1) | 1) + 1;

      return chans;
}

u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
                        unsigned int caps);
u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid);
u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);

/* flags for hda_nid_item */
#define HDA_NID_ITEM_AMP      (1<<0)

00499 struct hda_nid_item {
      struct snd_kcontrol *kctl;
      unsigned int index;
      hda_nid_t nid;
      unsigned short flags;
};

int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
                struct snd_kcontrol *kctl);
int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
                unsigned int index, hda_nid_t nid);
void snd_hda_ctls_clear(struct hda_codec *codec);

/*
 * hwdep interface
 */
#ifdef CONFIG_SND_HDA_HWDEP
int snd_hda_create_hwdep(struct hda_codec *codec);
#else
static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
#endif

#if defined(CONFIG_SND_HDA_POWER_SAVE) && defined(CONFIG_SND_HDA_HWDEP)
int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec);
#else
static inline int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec)
{
      return 0;
}
#endif

#ifdef CONFIG_SND_HDA_RECONFIG
int snd_hda_hwdep_add_sysfs(struct hda_codec *codec);
#else
static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec)
{
      return 0;
}
#endif

#ifdef CONFIG_SND_HDA_RECONFIG
const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
#else
static inline
const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
{
      return NULL;
}

static inline
int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
{
      return -ENOENT;
}
#endif

/*
 * power-management
 */

#ifdef CONFIG_SND_HDA_POWER_SAVE
void snd_hda_schedule_power_save(struct hda_codec *codec);

struct hda_amp_list {
      hda_nid_t nid;
      unsigned char dir;
      unsigned char idx;
};

struct hda_loopback_check {
      struct hda_amp_list *amplist;
      int power_on;
};

int snd_hda_check_amp_list_power(struct hda_codec *codec,
                         struct hda_loopback_check *check,
                         hda_nid_t nid);
#endif /* CONFIG_SND_HDA_POWER_SAVE */

/*
 * AMP control callbacks
 */
/* retrieve parameters from private_value */
#define get_amp_nid_(pv)      ((pv) & 0xffff)
#define get_amp_nid(kc)       get_amp_nid_((kc)->private_value)
#define get_amp_channels(kc)  (((kc)->private_value >> 16) & 0x3)
#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
#define get_amp_index(kc)     (((kc)->private_value >> 19) & 0xf)
#define get_amp_offset(kc)    (((kc)->private_value >> 23) & 0x3f)
#define get_amp_min_mute(kc)  (((kc)->private_value >> 29) & 0x1)

/*
 * CEA Short Audio Descriptor data
 */
00594 struct cea_sad {
      int   channels;
      int   format;           /* (format == 0) indicates invalid SAD */
      int   rates;
      int   sample_bits;      /* for LPCM */
      int   max_bitrate;      /* for AC3...ATRAC */
      int   profile;    /* for WMAPRO */
};

#define ELD_FIXED_BYTES 20
#define ELD_MAX_MNL     16
#define ELD_MAX_SAD     16

/*
 * ELD: EDID Like Data
 */
00610 struct hdmi_eld {
      bool  monitor_present;
      bool  eld_valid;
      int   eld_size;
      int   baseline_len;
      int   eld_ver;
      int   cea_edid_ver;
      char  monitor_name[ELD_MAX_MNL + 1];
      int   manufacture_id;
      int   product_id;
      u64   port_id;
      int   support_hdcp;
      int   support_ai;
      int   conn_type;
      int   aud_synch_delay;
      int   spk_alloc;
      int   sad_count;
      struct cea_sad sad[ELD_MAX_SAD];
#ifdef CONFIG_PROC_FS
      struct snd_info_entry *proc_entry;
#endif
};

int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
int snd_hdmi_get_eld(struct hdmi_eld *, struct hda_codec *, hda_nid_t);
void snd_hdmi_show_eld(struct hdmi_eld *eld);
void hdmi_eld_update_pcm_info(struct hdmi_eld *eld, struct hda_pcm_stream *pcm,
                        struct hda_pcm_stream *codec_pars);

#ifdef CONFIG_PROC_FS
int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld,
                   int index);
void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld);
#else
static inline int snd_hda_eld_proc_new(struct hda_codec *codec,
                               struct hdmi_eld *eld,
                               int index)
{
      return 0;
}
static inline void snd_hda_eld_proc_free(struct hda_codec *codec,
                               struct hdmi_eld *eld)
{
}
#endif

#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);

#endif /* __SOUND_HDA_LOCAL_H */

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