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linux-stable/sound/pci/hda/hda_local.h
Takashi Iwai 5b1ed7df01 ALSA: control - add generic LED API 
This patchset tries to resolve the diversity in the audio LED
 control among the ALSA drivers. A new control layer registration
 is introduced which allows to run additional operations on
 top of the elementary ALSA sound controls.
 
 A new control access group (three bits in the access flags)
 was introduced to carry the LED group information for
 the sound controls. The low-level sound drivers can just
 mark those controls using this access group. This information
 is not exported to the user space, but user space can
 manage the LED sound control associations through sysfs
 (last patch) per Mark's request. It makes things fully
 configurable in the kernel and user space (UCM).
 
 The actual state ('route') evaluation is really easy
 (the minimal value check for all channels / controls / cards).
 If there's more complicated logic for a given hardware,
 the card driver may eventually export a new read-only
 sound control for the LED group and do the logic itself.
 
 The new LED trigger control code is completely separated
 and possibly optional (there's no symbol dependency).
 The full code separation allows eventually to move this
 LED trigger control to the user space in future.
 Actually it replaces the already present functionality
 in the kernel space (HDA drivers) and allows a quick adoption
 for the recent hardware (ASoC codecs including SoundWire).
 
 snd_ctl_led            24576  0
 
 The sound driver implementation is really easy:
 
 1) call snd_ctl_led_request() when control LED layer should be
    automatically activated
    / it calls module_request("snd-ctl-led") on demand /
 2) mark all related kcontrols with
         SNDRV_CTL_ELEM_ACCESS_SPK_LED or
         SNDRV_CTL_ELEM_ACCESS_MIC_LED
 
 Link: https://lore.kernel.org/r/20210317172945.842280-1-perex@perex.cz
 Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Merge tag 'tags/mute-led-rework' into for-next

ALSA: control - add generic LED API

This patchset tries to resolve the diversity in the audio LED
control among the ALSA drivers. A new control layer registration
is introduced which allows to run additional operations on
top of the elementary ALSA sound controls.

A new control access group (three bits in the access flags)
was introduced to carry the LED group information for
the sound controls. The low-level sound drivers can just
mark those controls using this access group. This information
is not exported to the user space, but user space can
manage the LED sound control associations through sysfs
(last patch) per Mark's request. It makes things fully
configurable in the kernel and user space (UCM).

The actual state ('route') evaluation is really easy
(the minimal value check for all channels / controls / cards).
If there's more complicated logic for a given hardware,
the card driver may eventually export a new read-only
sound control for the LED group and do the logic itself.

The new LED trigger control code is completely separated
and possibly optional (there's no symbol dependency).
The full code separation allows eventually to move this
LED trigger control to the user space in future.
Actually it replaces the already present functionality
in the kernel space (HDA drivers) and allows a quick adoption
for the recent hardware (ASoC codecs including SoundWire).

snd_ctl_led            24576  0

The sound driver implementation is really easy:

1) call snd_ctl_led_request() when control LED layer should be
   automatically activated
   / it calls module_request("snd-ctl-led") on demand /
2) mark all related kcontrols with
        SNDRV_CTL_ELEM_ACCESS_SPK_LED or
        SNDRV_CTL_ELEM_ACCESS_MIC_LED

Link: https://lore.kernel.org/r/20210317172945.842280-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-30 17:42:40 +02:00

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Universal Interface for Intel High Definition Audio Codec
*
* Local helper functions
*
* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
*/
#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_beep, \
.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_get_beep(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
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 */
#define snd_hda_codec_amp_read(codec, nid, ch, dir, idx) \
snd_hdac_regmap_get_amp(&(codec)->core, nid, ch, dir, idx)
int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
int ch, int dir, int idx, int mask, int val);
int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
int direction, int idx, int mask, int val);
int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
int direction, int idx, int mask, int val);
int snd_hda_codec_amp_init_stereo(struct hda_codec *codec, hda_nid_t nid,
int dir, int idx, int mask, int val);
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 *followers,
const char *suffix, bool init_follower_vol,
unsigned int access, struct snd_kcontrol **ctl_ret);
#define snd_hda_add_vmaster(codec, name, tlv, followers, suffix, access) \
__snd_hda_add_vmaster(codec, name, tlv, followers, suffix, true, access, NULL)
int snd_hda_codec_reset(struct hda_codec *codec);
void snd_hda_codec_register(struct hda_codec *codec);
void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
#define snd_hda_regmap_sync(codec) snd_hdac_regmap_sync(&(codec)->core)
struct hda_vmaster_mute_hook {
/* below two fields must be filled by the caller of
* snd_hda_add_vmaster_hook() beforehand
*/
struct snd_kcontrol *sw_kctl;
void (*hook)(void *, int);
/* below are initialized automatically */
struct hda_codec *codec;
};
int snd_hda_add_vmaster_hook(struct hda_codec *codec,
struct hda_vmaster_mute_hook *hook);
void snd_hda_sync_vmaster_hook(struct hda_vmaster_mute_hook *hook);
/* amp value bits */
#define HDA_AMP_MUTE 0x80
#define HDA_AMP_UNMUTE 0x00
#define HDA_AMP_VOLMASK 0x7f
/*
* SPDIF I/O
*/
int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
hda_nid_t associated_nid,
hda_nid_t cvt_nid, int type);
#define snd_hda_create_spdif_out_ctls(codec, anid, cnid) \
snd_hda_create_dig_out_ctls(codec, anid, cnid, HDA_PCM_TYPE_SPDIF)
int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
/*
* input MUX helper
*/
#define HDA_MAX_NUM_INPUTS 36
struct hda_input_mux_item {
char label[32];
unsigned int index;
};
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);
int snd_hda_add_imux_item(struct hda_codec *codec,
struct hda_input_mux *imux, const char *label,
int index, int *type_idx);
/*
* 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 */
#define HDA_MAX_OUTS 5
struct hda_multi_out {
int num_dacs; /* # of DACs, must be more than 1 */
const hda_nid_t *dac_nids; /* DAC list */
hda_nid_t hp_nid; /* optional DAC for HP, 0 when not exists */
hda_nid_t hp_out_nid[HDA_MAX_OUTS]; /* DACs for multiple HPs */
hda_nid_t extra_out_nid[HDA_MAX_OUTS]; /* other (e.g. speaker) DACs */
hda_nid_t dig_out_nid; /* digital out audio widget */
const hda_nid_t *follower_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 proc interface
*/
#ifdef CONFIG_SND_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_BITS_ADVISED_BUFSIZE 16
void snd_print_pcm_bits(int pcm, char *buf, int buflen);
/*
* Misc
*/
int snd_hda_add_new_ctls(struct hda_codec *codec,
const struct snd_kcontrol_new *knew);
/*
* Fix-up pin default configurations and add default verbs
*/
struct hda_pintbl {
hda_nid_t nid;
u32 val;
};
struct hda_model_fixup {
const int id;
const char *name;
};
struct hda_fixup {
int type;
bool chained:1; /* call the chained fixup(s) after this */
bool chained_before:1; /* call the chained fixup(s) before this */
int chain_id;
union {
const struct hda_pintbl *pins;
const struct hda_verb *verbs;
void (*func)(struct hda_codec *codec,
const struct hda_fixup *fix,
int action);
} v;
};
struct snd_hda_pin_quirk {
unsigned int codec; /* Codec vendor/device ID */
unsigned short subvendor; /* PCI subvendor ID */
const struct hda_pintbl *pins; /* list of matching pins */
#ifdef CONFIG_SND_DEBUG_VERBOSE
const char *name;
#endif
int value; /* quirk value */
};
#ifdef CONFIG_SND_DEBUG_VERBOSE
#define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
{ .codec = _codec,\
.subvendor = _subvendor,\
.name = _name,\
.value = _value,\
.pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
}
#else
#define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \
{ .codec = _codec,\
.subvendor = _subvendor,\
.value = _value,\
.pins = (const struct hda_pintbl[]) { _pins, {0, 0}} \
}
#endif
#define HDA_FIXUP_ID_NOT_SET -1
#define HDA_FIXUP_ID_NO_FIXUP -2
/* fixup types */
enum {
HDA_FIXUP_INVALID,
HDA_FIXUP_PINS,
HDA_FIXUP_VERBS,
HDA_FIXUP_FUNC,
HDA_FIXUP_PINCTLS,
};
/* fixup action definitions */
enum {
HDA_FIXUP_ACT_PRE_PROBE,
HDA_FIXUP_ACT_PROBE,
HDA_FIXUP_ACT_INIT,
HDA_FIXUP_ACT_BUILD,
HDA_FIXUP_ACT_FREE,
};
int snd_hda_add_verbs(struct hda_codec *codec, const struct hda_verb *list);
void snd_hda_apply_verbs(struct hda_codec *codec);
void snd_hda_apply_pincfgs(struct hda_codec *codec,
const struct hda_pintbl *cfg);
void snd_hda_apply_fixup(struct hda_codec *codec, int action);
void snd_hda_pick_fixup(struct hda_codec *codec,
const struct hda_model_fixup *models,
const struct snd_pci_quirk *quirk,
const struct hda_fixup *fixlist);
void snd_hda_pick_pin_fixup(struct hda_codec *codec,
const struct snd_hda_pin_quirk *pin_quirk,
const struct hda_fixup *fixlist,
bool match_all_pins);
/* helper macros to retrieve pin default-config values */
#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)
#define get_defcfg_misc(cfg) \
((cfg & AC_DEFCFG_MISC) >> AC_DEFCFG_MISC_SHIFT)
/* 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)
unsigned int snd_hda_get_default_vref(struct hda_codec *codec, hda_nid_t pin);
unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
hda_nid_t pin, unsigned int val);
int _snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin,
unsigned int val, bool cached);
/**
* _snd_hda_set_pin_ctl - Set a pin-control value safely
* @codec: the codec instance
* @pin: the pin NID to set the control
* @val: the pin-control value (AC_PINCTL_* bits)
*
* This function sets the pin-control value to the given pin, but
* filters out the invalid pin-control bits when the pin has no such
* capabilities. For example, when PIN_HP is passed but the pin has no
* HP-drive capability, the HP bit is omitted.
*
* The function doesn't check the input VREF capability bits, though.
* Use snd_hda_get_default_vref() to guess the right value.
* Also, this function is only for analog pins, not for HDMI pins.
*/
static inline int
snd_hda_set_pin_ctl(struct hda_codec *codec, hda_nid_t pin, unsigned int val)
{
return _snd_hda_set_pin_ctl(codec, pin, val, false);
}
/**
* snd_hda_set_pin_ctl_cache - Set a pin-control value safely
* @codec: the codec instance
* @pin: the pin NID to set the control
* @val: the pin-control value (AC_PINCTL_* bits)
*
* Just like snd_hda_set_pin_ctl() but write to cache as well.
*/
static inline int
snd_hda_set_pin_ctl_cache(struct hda_codec *codec, hda_nid_t pin,
unsigned int val)
{
return _snd_hda_set_pin_ctl(codec, pin, val, true);
}
int snd_hda_codec_get_pin_target(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_codec_set_pin_target(struct hda_codec *codec, hda_nid_t nid,
unsigned int val);
#define for_each_hda_codec_node(nid, codec) \
for ((nid) = (codec)->core.start_nid; (nid) < (codec)->core.end_nid; (nid)++)
/*
* get widget capabilities
*/
static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid)
{
if (nid < codec->core.start_nid ||
nid >= codec->core.start_nid + codec->core.num_nodes)
return 0;
return codec->wcaps[nid - codec->core.start_nid];
}
/* get the widget type from widget capability bits */
static inline int get_wcaps_type(unsigned int wcaps)
{
if (!wcaps)
return -1; /* invalid type */
return (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;
}
static inline void snd_hda_override_wcaps(struct hda_codec *codec,
hda_nid_t nid, u32 val)
{
if (nid >= codec->core.start_nid &&
nid < codec->core.start_nid + codec->core.num_nodes)
codec->wcaps[nid - codec->core.start_nid] = val;
}
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);
/**
* snd_hda_query_pin_caps - Query PIN capabilities
* @codec: the HD-auio codec
* @nid: the NID to query
*
* Query PIN capabilities for the given widget.
* Returns the obtained capability bits.
*
* When cap bits have been already read, this doesn't read again but
* returns the cached value.
*/
static inline u32
snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
{
return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
}
/**
* snd_hda_override_pin_caps - Override the pin capabilities
* @codec: the CODEC
* @nid: the NID to override
* @caps: the capability bits to set
*
* Override the cached PIN capabilitiy bits value by the given one.
*
* Returns zero if successful or a negative error code.
*/
static inline int
snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
unsigned int caps)
{
return snd_hdac_override_parm(&codec->core, nid, AC_PAR_PIN_CAP, caps);
}
bool snd_hda_check_amp_caps(struct hda_codec *codec, hda_nid_t nid,
int dir, unsigned int bits);
#define nid_has_mute(codec, nid, dir) \
snd_hda_check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
#define nid_has_volume(codec, nid, dir) \
snd_hda_check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
/* flags for hda_nid_item */
#define HDA_NID_ITEM_AMP (1<<0)
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
void snd_hda_sysfs_init(struct hda_codec *codec);
void snd_hda_sysfs_clear(struct hda_codec *codec);
extern const struct attribute_group *snd_hda_dev_attr_groups[];
#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);
int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp);
#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;
}
static inline
int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
{
return -ENOENT;
}
#endif
/*
* power-management
*/
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 {
const 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);
/* check whether the actual power state matches with the target state */
static inline bool
snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid,
unsigned int target_state)
{
return snd_hdac_check_power_state(&codec->core, nid, target_state);
}
static inline unsigned int snd_hda_sync_power_state(struct hda_codec *codec,
hda_nid_t nid,
unsigned int target_state)
{
return snd_hdac_sync_power_state(&codec->core, nid, target_state);
}
unsigned int snd_hda_codec_eapd_power_filter(struct hda_codec *codec,
hda_nid_t nid,
unsigned int power_state);
/*
* 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_(pv) (((pv) >> 18) & 0x1)
#define get_amp_direction(kc) get_amp_direction_((kc)->private_value)
#define get_amp_index_(pv) (((pv) >> 19) & 0xf)
#define get_amp_index(kc) get_amp_index_((kc)->private_value)
#define get_amp_offset(kc) (((kc)->private_value >> 23) & 0x3f)
#define get_amp_min_mute(kc) (((kc)->private_value >> 29) & 0x1)
/*
* enum control helper
*/
int snd_hda_enum_helper_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo,
int num_items, const char * const *texts);
#define snd_hda_enum_bool_helper_info(kcontrol, uinfo) \
snd_hda_enum_helper_info(kcontrol, uinfo, 0, NULL)
/*
* CEA Short Audio Descriptor data
*/
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_SIZE 256
#define ELD_MAX_MNL 16
#define ELD_MAX_SAD 16
/*
* ELD: EDID Like Data
*/
struct parsed_hdmi_eld {
/*
* all fields will be cleared before updating ELD
*/
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];
};
struct hdmi_eld {
bool monitor_present;
bool eld_valid;
int eld_size;
char eld_buffer[ELD_MAX_SIZE];
struct parsed_hdmi_eld info;
};
int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
unsigned char *buf, int *eld_size);
int snd_hdmi_parse_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e,
const unsigned char *buf, int size);
void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e);
void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
struct hda_pcm_stream *hinfo);
int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
unsigned char *buf, int *eld_size,
bool rev3_or_later);
#ifdef CONFIG_SND_PROC_FS
void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
struct snd_info_buffer *buffer);
void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
struct snd_info_buffer *buffer);
#endif
#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen);
/*
*/
#define codec_err(codec, fmt, args...) \
dev_err(hda_codec_dev(codec), fmt, ##args)
#define codec_warn(codec, fmt, args...) \
dev_warn(hda_codec_dev(codec), fmt, ##args)
#define codec_info(codec, fmt, args...) \
dev_info(hda_codec_dev(codec), fmt, ##args)
#define codec_dbg(codec, fmt, args...) \
dev_dbg(hda_codec_dev(codec), fmt, ##args)
#endif /* __SOUND_HDA_LOCAL_H */
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