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# SPDX-License-Identifier: GPL-2.0-only
config SND_HDA
tristate
select SND_PCM
select SND_VMASTER
select SND_JACK
select SND_HDA_CORE
if SND_HDA
config SND_HDA_HWDEP
bool "Build hwdep interface for HD-audio driver"
select SND_HWDEP
help
Say Y here to build a hwdep interface for HD-audio driver.
This interface can be used for out-of-band communication
with codecs for debugging purposes.
config SND_HDA_RECONFIG
bool "Allow dynamic codec reconfiguration"
help
Say Y here to enable the HD-audio codec re-configuration feature.
It allows user to clear the whole codec configuration, change the
codec setup, add extra verbs, and re-configure the codec dynamically.
Note that this item alone doesn't provide the sysfs interface, but
enables the feature just for the patch loader below.
If you need the traditional sysfs entries for the manual interaction,
turn on CONFIG_SND_HDA_HWDEP as well.
config SND_HDA_INPUT_BEEP
bool "Support digital beep via input layer"
depends on INPUT=y || INPUT=SND_HDA
help
Say Y here to build a digital beep interface for HD-audio
driver. This interface is used to generate digital beeps.
config SND_HDA_INPUT_BEEP_MODE
int "Digital beep registration mode (0=off, 1=on)"
depends on SND_HDA_INPUT_BEEP=y
default "1"
range 0 1
help
Set 0 to disable the digital beep interface for HD-audio by default.
Set 1 to always enable the digital beep interface for HD-audio by
default.
config SND_HDA_PATCH_LOADER
bool "Support initialization patch loading for HD-audio"
select FW_LOADER
select SND_HDA_RECONFIG
help
Say Y here to allow the HD-audio driver to load a pseudo
firmware file ("patch") for overriding the BIOS setup at
start up. The "patch" file can be specified via patch module
option, such as patch=hda-init.
config SND_HDA_POWER_SAVE_DEFAULT
int "Default time-out for HD-audio power-save mode"
depends on PM
default 0
help
The default time-out value in seconds for HD-audio automatic
power-save mode. 0 means to disable the power-save mode.
config SND_HDA_CTL_DEV_ID
bool "Use the device identifier field for controls"
depends on SND_HDA_INTEL
help
Say Y to use the device identifier field for (mixer)
controls (old behaviour until this option is available).
When enabled, the multiple HDA codecs may set the device
field in control (mixer) element identifiers. The use
of this field is not recommended and defined for mixer controls.
The old behaviour (Y) is obsolete and will be removed. Consider
to not enable this option.
config SND_HDA_PREALLOC_SIZE
int "Pre-allocated buffer size for HD-audio driver"
range 0 32768
default 0 if SND_DMA_SGBUF
default 64 if !SND_DMA_SGBUF
help
Specifies the default pre-allocated buffer-size in kB for the
HD-audio driver. A larger buffer (e.g. 2048) is preferred
for systems using PulseAudio. The default 64 is chosen just
for compatibility reasons.
On x86 systems, the default is zero as S/G allocation works
and no preallocation is needed in most cases.
Note that the pre-allocation size can be changed dynamically
via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.
endif
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