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0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * Universal Interface for Intel High Definition Audio Codec
0004  *
0005  * Local helper functions
0006  *
0007  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
0008  */
0009 
0010 #ifndef __SOUND_HDA_LOCAL_H
0011 #define __SOUND_HDA_LOCAL_H
0012 
0013 /* We abuse kcontrol_new.subdev field to pass the NID corresponding to
0014  * the given new control.  If id.subdev has a bit flag HDA_SUBDEV_NID_FLAG,
0015  * snd_hda_ctl_add() takes the lower-bit subdev value as a valid NID.
0016  * 
0017  * Note that the subdevice field is cleared again before the real registration
0018  * in snd_hda_ctl_add(), so that this value won't appear in the outside.
0019  */
0020 #define HDA_SUBDEV_NID_FLAG (1U << 31)
0021 #define HDA_SUBDEV_AMP_FLAG (1U << 30)
0022 
0023 /*
0024  * for mixer controls
0025  */
0026 #define HDA_COMPOSE_AMP_VAL_OFS(nid,chs,idx,dir,ofs)        \
0027     ((nid) | ((chs)<<16) | ((dir)<<18) | ((idx)<<19) | ((ofs)<<23))
0028 #define HDA_AMP_VAL_MIN_MUTE (1<<29)
0029 #define HDA_COMPOSE_AMP_VAL(nid,chs,idx,dir) \
0030     HDA_COMPOSE_AMP_VAL_OFS(nid, chs, idx, dir, 0)
0031 /* mono volume with index (index=0,1,...) (channel=1,2) */
0032 #define HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, channel, xindex, dir, flags) \
0033     { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx,  \
0034       .subdevice = HDA_SUBDEV_AMP_FLAG, \
0035       .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
0036             SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
0037             SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
0038       .info = snd_hda_mixer_amp_volume_info, \
0039       .get = snd_hda_mixer_amp_volume_get, \
0040       .put = snd_hda_mixer_amp_volume_put, \
0041       .tlv = { .c = snd_hda_mixer_amp_tlv },        \
0042       .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, dir) | flags }
0043 /* stereo volume with index */
0044 #define HDA_CODEC_VOLUME_IDX(xname, xcidx, nid, xindex, direction) \
0045     HDA_CODEC_VOLUME_MONO_IDX(xname, xcidx, nid, 3, xindex, direction, 0)
0046 /* mono volume */
0047 #define HDA_CODEC_VOLUME_MONO(xname, nid, channel, xindex, direction) \
0048     HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, channel, xindex, direction, 0)
0049 /* stereo volume */
0050 #define HDA_CODEC_VOLUME(xname, nid, xindex, direction) \
0051     HDA_CODEC_VOLUME_MONO(xname, nid, 3, xindex, direction)
0052 /* stereo volume with min=mute */
0053 #define HDA_CODEC_VOLUME_MIN_MUTE(xname, nid, xindex, direction) \
0054     HDA_CODEC_VOLUME_MONO_IDX(xname, 0, nid, 3, xindex, direction, \
0055                   HDA_AMP_VAL_MIN_MUTE)
0056 /* mono mute switch with index (index=0,1,...) (channel=1,2) */
0057 #define HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
0058     { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
0059       .subdevice = HDA_SUBDEV_AMP_FLAG, \
0060       .info = snd_hda_mixer_amp_switch_info, \
0061       .get = snd_hda_mixer_amp_switch_get, \
0062       .put = snd_hda_mixer_amp_switch_put, \
0063       .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
0064 /* stereo mute switch with index */
0065 #define HDA_CODEC_MUTE_IDX(xname, xcidx, nid, xindex, direction) \
0066     HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, 3, xindex, direction)
0067 /* mono mute switch */
0068 #define HDA_CODEC_MUTE_MONO(xname, nid, channel, xindex, direction) \
0069     HDA_CODEC_MUTE_MONO_IDX(xname, 0, nid, channel, xindex, direction)
0070 /* stereo mute switch */
0071 #define HDA_CODEC_MUTE(xname, nid, xindex, direction) \
0072     HDA_CODEC_MUTE_MONO(xname, nid, 3, xindex, direction)
0073 #ifdef CONFIG_SND_HDA_INPUT_BEEP
0074 /* special beep mono mute switch with index (index=0,1,...) (channel=1,2) */
0075 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, channel, xindex, direction) \
0076     { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xcidx, \
0077       .subdevice = HDA_SUBDEV_AMP_FLAG, \
0078       .info = snd_hda_mixer_amp_switch_info, \
0079       .get = snd_hda_mixer_amp_switch_get_beep, \
0080       .put = snd_hda_mixer_amp_switch_put_beep, \
0081       .private_value = HDA_COMPOSE_AMP_VAL(nid, channel, xindex, direction) }
0082 #else
0083 /* no digital beep - just the standard one */
0084 #define HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, xcidx, nid, ch, xidx, dir) \
0085     HDA_CODEC_MUTE_MONO_IDX(xname, xcidx, nid, ch, xidx, dir)
0086 #endif /* CONFIG_SND_HDA_INPUT_BEEP */
0087 /* special beep mono mute switch */
0088 #define HDA_CODEC_MUTE_BEEP_MONO(xname, nid, channel, xindex, direction) \
0089     HDA_CODEC_MUTE_BEEP_MONO_IDX(xname, 0, nid, channel, xindex, direction)
0090 /* special beep stereo mute switch */
0091 #define HDA_CODEC_MUTE_BEEP(xname, nid, xindex, direction) \
0092     HDA_CODEC_MUTE_BEEP_MONO(xname, nid, 3, xindex, direction)
0093 
0094 extern const char *snd_hda_pcm_type_name[];
0095 
0096 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
0097                   struct snd_ctl_elem_info *uinfo);
0098 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
0099                  struct snd_ctl_elem_value *ucontrol);
0100 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
0101                  struct snd_ctl_elem_value *ucontrol);
0102 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
0103               unsigned int size, unsigned int __user *_tlv);
0104 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
0105                   struct snd_ctl_elem_info *uinfo);
0106 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
0107                  struct snd_ctl_elem_value *ucontrol);
0108 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
0109                  struct snd_ctl_elem_value *ucontrol);
0110 #ifdef CONFIG_SND_HDA_INPUT_BEEP
0111 int snd_hda_mixer_amp_switch_get_beep(struct snd_kcontrol *kcontrol,
0112                       struct snd_ctl_elem_value *ucontrol);
0113 int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
0114                       struct snd_ctl_elem_value *ucontrol);
0115 #endif
0116 /* lowlevel accessor with caching; use carefully */
0117 #define snd_hda_codec_amp_read(codec, nid, ch, dir, idx) \
0118     snd_hdac_regmap_get_amp(&(codec)->core, nid, ch, dir, idx)
0119 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
0120                  int ch, int dir, int idx, int mask, int val);
0121 int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
0122                  int direction, int idx, int mask, int val);
0123 int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
0124                int direction, int idx, int mask, int val);
0125 int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
0126                   int dir, int idx, int mask, int val);
0127 void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
0128                  unsigned int *tlv);
0129 struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
0130                         const char *name);
0131 int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
0132               unsigned int *tlv, const char * const *followers,
0133               const char *suffix, bool init_follower_vol,
0134               unsigned int access, struct snd_kcontrol **ctl_ret);
0135 #define snd_hda_add_vmaster(codec, name, tlv, followers, suffix, access) \
0136     __snd_hda_add_vmaster(codec, name, tlv, followers, suffix, true, access, NULL)
0137 int snd_hda_codec_reset(struct hda_codec *codec);
0138 void snd_hda_codec_disconnect_pcms(struct hda_codec *codec);
0139 
0140 #define snd_hda_regmap_sync(codec)  snd_hdac_regmap_sync(&(codec)->core)
0141 
0142 struct hda_vmaster_mute_hook {
0143     /* below two fields must be filled by the caller of
0144      * snd_hda_add_vmaster_hook() beforehand
0145      */
0146     struct snd_kcontrol *sw_kctl;
0147     void (*hook)(void *, int);
0148     /* below are initialized automatically */
0149     struct hda_codec *codec;
0150 };
0151 
0152 int snd_hda_add_vmaster_hook(struct hda_codec *codec,
0153                  struct hda_vmaster_mute_hook *hook);
0154 void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
0155 
0156 /* amp value bits */
0157 #define HDA_AMP_MUTE    0x80
0158 #define HDA_AMP_UNMUTE  0x00
0159 #define HDA_AMP_VOLMASK 0x7f
0160 
0161 /*
0162  * SPDIF I/O
0163  */
0164 int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
0165                 hda_nid_t associated_nid,
0166                 hda_nid_t cvt_nid, int type);
0167 #define snd_hda_create_spdif_out_ctls(codec, anid, cnid) \
0168     snd_hda_create_dig_out_ctls(codec, anid, cnid, HDA_PCM_TYPE_SPDIF)
0169 int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
0170 
0171 /*
0172  * input MUX helper
0173  */
0174 #define HDA_MAX_NUM_INPUTS  36
0175 struct hda_input_mux_item {
0176     char label[32];
0177     unsigned int index;
0178 };
0179 struct hda_input_mux {
0180     unsigned int num_items;
0181     struct hda_input_mux_item items[HDA_MAX_NUM_INPUTS];
0182 };
0183 
0184 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
0185                struct snd_ctl_elem_info *uinfo);
0186 int snd_hda_input_mux_put(struct hda_codec *codec,
0187               const struct hda_input_mux *imux,
0188               struct snd_ctl_elem_value *ucontrol, hda_nid_t nid,
0189               unsigned int *cur_val);
0190 int snd_hda_add_imux_item(struct hda_codec *codec,
0191               struct hda_input_mux *imux, const char *label,
0192               int index, int *type_idx);
0193 
0194 /*
0195  * Multi-channel / digital-out PCM helper
0196  */
0197 
0198 enum { HDA_FRONT, HDA_REAR, HDA_CLFE, HDA_SIDE }; /* index for dac_nidx */
0199 enum { HDA_DIG_NONE, HDA_DIG_EXCLUSIVE, HDA_DIG_ANALOG_DUP }; /* dig_out_used */
0200 
0201 #define HDA_MAX_OUTS    5
0202 
0203 struct hda_multi_out {
0204     int num_dacs;       /* # of DACs, must be more than 1 */
0205     const hda_nid_t *dac_nids;  /* DAC list */
0206     hda_nid_t hp_nid;   /* optional DAC for HP, 0 when not exists */
0207     hda_nid_t hp_out_nid[HDA_MAX_OUTS]; /* DACs for multiple HPs */
0208     hda_nid_t extra_out_nid[HDA_MAX_OUTS];  /* other (e.g. speaker) DACs */
0209     hda_nid_t dig_out_nid;  /* digital out audio widget */
0210     const hda_nid_t *follower_dig_outs;
0211     int max_channels;   /* currently supported analog channels */
0212     int dig_out_used;   /* current usage of digital out (HDA_DIG_XXX) */
0213     int no_share_stream;    /* don't share a stream with multiple pins */
0214     int share_spdif;    /* share SPDIF pin */
0215     /* PCM information for both analog and SPDIF DACs */
0216     unsigned int analog_rates;
0217     unsigned int analog_maxbps;
0218     u64 analog_formats;
0219     unsigned int spdif_rates;
0220     unsigned int spdif_maxbps;
0221     u64 spdif_formats;
0222 };
0223 
0224 int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
0225                   struct hda_multi_out *mout);
0226 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
0227                    struct hda_multi_out *mout);
0228 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
0229                 struct hda_multi_out *mout);
0230 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
0231                   struct hda_multi_out *mout,
0232                   unsigned int stream_tag,
0233                   unsigned int format,
0234                   struct snd_pcm_substream *substream);
0235 int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
0236                   struct hda_multi_out *mout);
0237 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
0238                   struct hda_multi_out *mout,
0239                   struct snd_pcm_substream *substream,
0240                   struct hda_pcm_stream *hinfo);
0241 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
0242                      struct hda_multi_out *mout,
0243                      unsigned int stream_tag,
0244                      unsigned int format,
0245                      struct snd_pcm_substream *substream);
0246 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
0247                      struct hda_multi_out *mout);
0248 
0249 /*
0250  * generic proc interface
0251  */
0252 #ifdef CONFIG_SND_PROC_FS
0253 int snd_hda_codec_proc_new(struct hda_codec *codec);
0254 #else
0255 static inline int snd_hda_codec_proc_new(struct hda_codec *codec) { return 0; }
0256 #endif
0257 
0258 #define SND_PRINT_BITS_ADVISED_BUFSIZE  16
0259 void snd_print_pcm_bits(int pcm, char *buf, int buflen);
0260 
0261 /*
0262  * Misc
0263  */
0264 int snd_hda_add_new_ctls(struct hda_codec *codec,
0265              const struct snd_kcontrol_new *knew);
0266 
0267 /*
0268  * Fix-up pin default configurations and add default verbs
0269  */
0270 
0271 struct hda_pintbl {
0272     hda_nid_t nid;
0273     u32 val;
0274 };
0275 
0276 struct hda_model_fixup {
0277     const int id;
0278     const char *name;
0279 };
0280 
0281 struct hda_fixup {
0282     int type;
0283     bool chained:1;     /* call the chained fixup(s) after this */
0284     bool chained_before:1;  /* call the chained fixup(s) before this */
0285     int chain_id;
0286     union {
0287         const struct hda_pintbl *pins;
0288         const struct hda_verb *verbs;
0289         void (*func)(struct hda_codec *codec,
0290                  const struct hda_fixup *fix,
0291                  int action);
0292     } v;
0293 };
0294 
0295 struct snd_hda_pin_quirk {
0296     unsigned int codec;             /* Codec vendor/device ID */
0297     unsigned short subvendor;   /* PCI subvendor ID */
0298     const struct hda_pintbl *pins;  /* list of matching pins */
0299 #ifdef CONFIG_SND_DEBUG_VERBOSE
0300     const char *name;
0301 #endif
0302     int value;          /* quirk value */
0303 };
0304 
0305 #ifdef CONFIG_SND_DEBUG_VERBOSE
0306 
0307 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
0308     { .codec = _codec,\
0309       .subvendor = _subvendor,\
0310       .name = _name,\
0311       .value = _value,\
0312       .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
0313     }
0314 #else
0315 
0316 #define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
0317     { .codec = _codec,\
0318       .subvendor = _subvendor,\
0319       .value = _value,\
0320       .pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
0321     }
0322 
0323 #endif
0324 
0325 #define HDA_FIXUP_ID_NOT_SET -1
0326 #define HDA_FIXUP_ID_NO_FIXUP -2
0327 
0328 /* fixup types */
0329 enum {
0330     HDA_FIXUP_INVALID,
0331     HDA_FIXUP_PINS,
0332     HDA_FIXUP_VERBS,
0333     HDA_FIXUP_FUNC,
0334     HDA_FIXUP_PINCTLS,
0335 };
0336 
0337 /* fixup action definitions */
0338 enum {
0339     HDA_FIXUP_ACT_PRE_PROBE,
0340     HDA_FIXUP_ACT_PROBE,
0341     HDA_FIXUP_ACT_INIT,
0342     HDA_FIXUP_ACT_BUILD,
0343     HDA_FIXUP_ACT_FREE,
0344 };
0345 
0346 int snd_hda_add_verbs(struct hda_codec *codec, const struct hda_verb *list);
0347 void snd_hda_apply_verbs(struct hda_codec *codec);
0348 void snd_hda_apply_pincfgs(struct hda_codec *codec,
0349                const struct hda_pintbl *cfg);
0350 void snd_hda_apply_fixup(struct hda_codec *codec, int action);
0351 void __snd_hda_apply_fixup(struct hda_codec *codec, int id, int action, int depth);
0352 void snd_hda_pick_fixup(struct hda_codec *codec,
0353             const struct hda_model_fixup *models,
0354             const struct snd_pci_quirk *quirk,
0355             const struct hda_fixup *fixlist);
0356 void snd_hda_pick_pin_fixup(struct hda_codec *codec,
0357                 const struct snd_hda_pin_quirk *pin_quirk,
0358                 const struct hda_fixup *fixlist,
0359                 bool match_all_pins);
0360 
0361 /* helper macros to retrieve pin default-config values */
0362 #define get_defcfg_connect(cfg) \
0363     ((cfg & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT)
0364 #define get_defcfg_association(cfg) \
0365     ((cfg & AC_DEFCFG_DEF_ASSOC) >> AC_DEFCFG_ASSOC_SHIFT)
0366 #define get_defcfg_location(cfg) \
0367     ((cfg & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT)
0368 #define get_defcfg_sequence(cfg) \
0369     (cfg & AC_DEFCFG_SEQUENCE)
0370 #define get_defcfg_device(cfg) \
0371     ((cfg & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT)
0372 #define get_defcfg_misc(cfg) \
0373     ((cfg & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT)
0374 
0375 /* amp values */
0376 #define AMP_IN_MUTE(idx)    (0x7080 | ((idx)<<8))
0377 #define AMP_IN_UNMUTE(idx)  (0x7000 | ((idx)<<8))
0378 #define AMP_OUT_MUTE        0xb080
0379 #define AMP_OUT_UNMUTE      0xb000
0380 #define AMP_OUT_ZERO        0xb000
0381 /* pinctl values */
0382 #define PIN_IN          (AC_PINCTL_IN_EN)
0383 #define PIN_VREFHIZ     (AC_PINCTL_IN_EN | AC_PINCTL_VREF_HIZ)
0384 #define PIN_VREF50      (AC_PINCTL_IN_EN | AC_PINCTL_VREF_50)
0385 #define PIN_VREFGRD     (AC_PINCTL_IN_EN | AC_PINCTL_VREF_GRD)
0386 #define PIN_VREF80      (AC_PINCTL_IN_EN | AC_PINCTL_VREF_80)
0387 #define PIN_VREF100     (AC_PINCTL_IN_EN | AC_PINCTL_VREF_100)
0388 #define PIN_OUT         (AC_PINCTL_OUT_EN)
0389 #define PIN_HP          (AC_PINCTL_OUT_EN | AC_PINCTL_HP_EN)
0390 #define PIN_HP_AMP      (AC_PINCTL_HP_EN)
0391 
0392 unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin);
0393 unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
0394                      hda_nid_t pin, unsigned int val);
0395 int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
0396              unsigned int val, bool cached);
0397 
0398 /**
0399  * _snd_hda_set_pin_ctl - Set a pin-control value safely
0400  * @codec: the codec instance
0401  * @pin: the pin NID to set the control
0402  * @val: the pin-control value (AC_PINCTL_* bits)
0403  *
0404  * This function sets the pin-control value to the given pin, but
0405  * filters out the invalid pin-control bits when the pin has no such
0406  * capabilities.  For example, when PIN_HP is passed but the pin has no
0407  * HP-drive capability, the HP bit is omitted.
0408  *
0409  * The function doesn't check the input VREF capability bits, though.
0410  * Use snd_hda_get_default_vref() to guess the right value.
0411  * Also, this function is only for analog pins, not for HDMI pins.
0412  */
0413 static inline int
0414 snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val)
0415 {
0416     return _snd_hda_set_pin_ctl(codec, pin, val, false);
0417 }
0418 
0419 /**
0420  * snd_hda_set_pin_ctl_cache - Set a pin-control value safely
0421  * @codec: the codec instance
0422  * @pin: the pin NID to set the control
0423  * @val: the pin-control value (AC_PINCTL_* bits)
0424  *
0425  * Just like snd_hda_set_pin_ctl() but write to cache as well.
0426  */
0427 static inline int
0428 snd_hda_set_pin_ctl_cache(struct hda_codec *codec, hda_nid_t pin,
0429               unsigned int val)
0430 {
0431     return _snd_hda_set_pin_ctl(codec, pin, val, true);
0432 }
0433 
0434 int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid);
0435 int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
0436                  unsigned int val);
0437 
0438 #define for_each_hda_codec_node(nid, codec) \
0439     for ((nid) = (codec)->core.start_nid; (nid) < (codec)->core.end_nid; (nid)++)
0440 
0441 /* Set the codec power_state flag to indicate to allow unsol event handling;
0442  * see hda_codec_unsol_event() in hda_bind.c.  Calling this might confuse the
0443  * state tracking, so use with care.
0444  */
0445 static inline void snd_hda_codec_allow_unsol_events(struct hda_codec *codec)
0446 {
0447     codec->core.dev.power.power_state = PMSG_ON;
0448 }
0449 
0450 /*
0451  * get widget capabilities
0452  */
0453 static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
0454 {
0455     if (nid < codec->core.start_nid ||
0456         nid >= codec->core.start_nid + codec->core.num_nodes)
0457         return 0;
0458     return codec->wcaps[nid - codec->core.start_nid];
0459 }
0460 
0461 /* get the widget type from widget capability bits */
0462 static inline int get_wcaps_type(unsigned int wcaps)
0463 {
0464     if (!wcaps)
0465         return -1; /* invalid type */
0466     return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
0467 }
0468 
0469 static inline unsigned int get_wcaps_channels(u32 wcaps)
0470 {
0471     unsigned int chans;
0472 
0473     chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
0474     chans = ((chans << 1) | 1) + 1;
0475 
0476     return chans;
0477 }
0478 
0479 static inline void snd_hda_override_wcaps(struct hda_codec *codec,
0480                       hda_nid_t nid, u32 val)
0481 {
0482     if (nid >= codec->core.start_nid &&
0483         nid < codec->core.start_nid + codec->core.num_nodes)
0484         codec->wcaps[nid - codec->core.start_nid] = val;
0485 }
0486 
0487 u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction);
0488 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
0489                   unsigned int caps);
0490 /**
0491  * snd_hda_query_pin_caps - Query PIN capabilities
0492  * @codec: the HD-auio codec
0493  * @nid: the NID to query
0494  *
0495  * Query PIN capabilities for the given widget.
0496  * Returns the obtained capability bits.
0497  *
0498  * When cap bits have been already read, this doesn't read again but
0499  * returns the cached value.
0500  */
0501 static inline u32
0502 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
0503 {
0504     return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
0505 
0506 }
0507 
0508 /**
0509  * snd_hda_override_pin_caps - Override the pin capabilities
0510  * @codec: the CODEC
0511  * @nid: the NID to override
0512  * @caps: the capability bits to set
0513  *
0514  * Override the cached PIN capabilitiy bits value by the given one.
0515  *
0516  * Returns zero if successful or a negative error code.
0517  */
0518 static inline int
0519 snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
0520               unsigned int caps)
0521 {
0522     return snd_hdac_override_parm(&codec->core, nid, AC_PAR_PIN_CAP, caps);
0523 }
0524 
0525 bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
0526                int dir, unsigned int bits);
0527 
0528 #define nid_has_mute(codec, nid, dir) \
0529     snd_hda_check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
0530 #define nid_has_volume(codec, nid, dir) \
0531     snd_hda_check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
0532 
0533 
0534 /* flags for hda_nid_item */
0535 #define HDA_NID_ITEM_AMP    (1<<0)
0536 
0537 struct hda_nid_item {
0538     struct snd_kcontrol *kctl;
0539     unsigned int index;
0540     hda_nid_t nid;
0541     unsigned short flags;
0542 };
0543 
0544 int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
0545             struct snd_kcontrol *kctl);
0546 int snd_hda_add_nid(struct hda_codec *codec, struct snd_kcontrol *kctl,
0547             unsigned int index, hda_nid_t nid);
0548 void snd_hda_ctls_clear(struct hda_codec *codec);
0549 
0550 /*
0551  * hwdep interface
0552  */
0553 #ifdef CONFIG_SND_HDA_HWDEP
0554 int snd_hda_create_hwdep(struct hda_codec *codec);
0555 #else
0556 static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; }
0557 #endif
0558 
0559 void snd_hda_sysfs_init(struct hda_codec *codec);
0560 void snd_hda_sysfs_clear(struct hda_codec *codec);
0561 
0562 extern const struct attribute_group *snd_hda_dev_attr_groups[];
0563 
0564 #ifdef CONFIG_SND_HDA_RECONFIG
0565 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key);
0566 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key);
0567 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp);
0568 #else
0569 static inline
0570 const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
0571 {
0572     return NULL;
0573 }
0574 
0575 static inline
0576 int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
0577 {
0578     return -ENOENT;
0579 }
0580 
0581 static inline
0582 int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
0583 {
0584     return -ENOENT;
0585 }
0586 #endif
0587 
0588 /*
0589  * power-management
0590  */
0591 
0592 void snd_hda_schedule_power_save(struct hda_codec *codec);
0593 
0594 struct hda_amp_list {
0595     hda_nid_t nid;
0596     unsigned char dir;
0597     unsigned char idx;
0598 };
0599 
0600 struct hda_loopback_check {
0601     const struct hda_amp_list *amplist;
0602     int power_on;
0603 };
0604 
0605 int snd_hda_check_amp_list_power(struct hda_codec *codec,
0606                  struct hda_loopback_check *check,
0607                  hda_nid_t nid);
0608 
0609 /* check whether the actual power state matches with the target state */
0610 static inline bool
0611 snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid,
0612               unsigned int target_state)
0613 {
0614     return snd_hdac_check_power_state(&codec->core, nid, target_state);
0615 }
0616 
0617 static inline unsigned int snd_hda_sync_power_state(struct hda_codec *codec,
0618                             hda_nid_t nid,
0619                             unsigned int target_state)
0620 {
0621     return snd_hdac_sync_power_state(&codec->core, nid, target_state);
0622 }
0623 unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
0624                          hda_nid_t nid,
0625                          unsigned int power_state);
0626 
0627 void snd_hda_codec_shutdown(struct hda_codec *codec);
0628 
0629 /*
0630  * AMP control callbacks
0631  */
0632 /* retrieve parameters from private_value */
0633 #define get_amp_nid_(pv)    ((pv) & 0xffff)
0634 #define get_amp_nid(kc)     get_amp_nid_((kc)->private_value)
0635 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
0636 #define get_amp_direction_(pv)  (((pv) >> 18) & 0x1)
0637 #define get_amp_direction(kc)   get_amp_direction_((kc)->private_value)
0638 #define get_amp_index_(pv)  (((pv) >> 19) & 0xf)
0639 #define get_amp_index(kc)   get_amp_index_((kc)->private_value)
0640 #define get_amp_offset(kc)  (((kc)->private_value >> 23) & 0x3f)
0641 #define get_amp_min_mute(kc)    (((kc)->private_value >> 29) & 0x1)
0642 
0643 /*
0644  * enum control helper
0645  */
0646 int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
0647                  struct snd_ctl_elem_info *uinfo,
0648                  int num_items, const char * const *texts);
0649 #define snd_hda_enum_bool_helper_info(kcontrol, uinfo) \
0650     snd_hda_enum_helper_info(kcontrol, uinfo, 0, NULL)
0651 
0652 /*
0653  * CEA Short Audio Descriptor data
0654  */
0655 struct cea_sad {
0656     int channels;
0657     int format;     /* (format == 0) indicates invalid SAD */
0658     int rates;
0659     int sample_bits;    /* for LPCM */
0660     int max_bitrate;    /* for AC3...ATRAC */
0661     int profile;    /* for WMAPRO */
0662 };
0663 
0664 #define ELD_FIXED_BYTES 20
0665 #define ELD_MAX_SIZE    256
0666 #define ELD_MAX_MNL 16
0667 #define ELD_MAX_SAD 16
0668 
0669 /*
0670  * ELD: EDID Like Data
0671  */
0672 struct parsed_hdmi_eld {
0673     /*
0674      * all fields will be cleared before updating ELD
0675      */
0676     int baseline_len;
0677     int eld_ver;
0678     int cea_edid_ver;
0679     char    monitor_name[ELD_MAX_MNL + 1];
0680     int manufacture_id;
0681     int product_id;
0682     u64 port_id;
0683     int support_hdcp;
0684     int support_ai;
0685     int conn_type;
0686     int aud_synch_delay;
0687     int spk_alloc;
0688     int sad_count;
0689     struct cea_sad sad[ELD_MAX_SAD];
0690 };
0691 
0692 struct hdmi_eld {
0693     bool    monitor_present;
0694     bool    eld_valid;
0695     int eld_size;
0696     char    eld_buffer[ELD_MAX_SIZE];
0697     struct parsed_hdmi_eld info;
0698 };
0699 
0700 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
0701 int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
0702              unsigned char *buf, int *eld_size);
0703 int snd_hdmi_parse_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e,
0704                const unsigned char *buf, int size);
0705 void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e);
0706 void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
0707                   struct hda_pcm_stream *hinfo);
0708 
0709 int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
0710              unsigned char *buf, int *eld_size,
0711              bool rev3_or_later);
0712 
0713 #ifdef CONFIG_SND_PROC_FS
0714 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
0715                  struct snd_info_buffer *buffer);
0716 void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
0717                  struct snd_info_buffer *buffer);
0718 #endif
0719 
0720 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
0721 void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
0722 
0723 void snd_hda_codec_display_power(struct hda_codec *codec, bool enable);
0724 
0725 /*
0726  */
0727 #define codec_err(codec, fmt, args...) \
0728     dev_err(hda_codec_dev(codec), fmt, ##args)
0729 #define codec_warn(codec, fmt, args...) \
0730     dev_warn(hda_codec_dev(codec), fmt, ##args)
0731 #define codec_info(codec, fmt, args...) \
0732     dev_info(hda_codec_dev(codec), fmt, ##args)
0733 #define codec_dbg(codec, fmt, args...) \
0734     dev_dbg(hda_codec_dev(codec), fmt, ##args)
0735 
0736 #endif /* __SOUND_HDA_LOCAL_H */
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