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