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Introduce skeleton of the virtio sound driver. The driver implements the virtio sound device specification, which has become part of the virtio standard. Initial initialization of the device, virtqueues and creation of an empty ALSA sound device. Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> Link: https://lore.kernel.org/r/20210302164709.3142702-3-anton.yakovlev@opensynergy.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
118 lines
2.8 KiB
Plaintext
118 lines
2.8 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menuconfig SOUND
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tristate "Sound card support"
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depends on HAS_IOMEM
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help
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If you have a sound card in your computer, i.e. if it can say more
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than an occasional beep, say Y.
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if SOUND
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config SOUND_OSS_CORE
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bool
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default n
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config SOUND_OSS_CORE_PRECLAIM
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bool "Preclaim OSS device numbers"
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depends on SOUND_OSS_CORE
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default y
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help
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With this option enabled, the kernel will claim all OSS device
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numbers if any OSS support (native or emulation) is enabled
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whether the respective module is loaded or not and try to load the
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appropriate module using sound-slot/service-* and char-major-*
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module aliases when one of the device numbers is opened. With
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this option disabled, kernel will only claim actually in-use
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device numbers and opening a missing device will generate only the
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standard char-major-* aliases.
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The only visible difference is use of additional module aliases
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and whether OSS sound devices appear multiple times in
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/proc/devices. sound-slot/service-* module aliases are scheduled
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to be removed (ie. PRECLAIM won't be available) and this option is
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to make the transition easier. This option can be overridden
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during boot using the kernel parameter soundcore.preclaim_oss.
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Disabling this allows alternative OSS implementations.
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If unsure, say Y.
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source "sound/oss/dmasound/Kconfig"
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if !UML
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menuconfig SND
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tristate "Advanced Linux Sound Architecture"
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help
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Say 'Y' or 'M' to enable ALSA (Advanced Linux Sound Architecture),
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the new base sound system.
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For more information, see <http://www.alsa-project.org/>
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if SND
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source "sound/core/Kconfig"
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source "sound/drivers/Kconfig"
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source "sound/isa/Kconfig"
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source "sound/pci/Kconfig"
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source "sound/hda/Kconfig"
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source "sound/ppc/Kconfig"
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source "sound/ac97/Kconfig"
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source "sound/aoa/Kconfig"
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source "sound/arm/Kconfig"
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source "sound/atmel/Kconfig"
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source "sound/spi/Kconfig"
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source "sound/mips/Kconfig"
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source "sound/sh/Kconfig"
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# the following will depend on the order of config.
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# here assuming USB is defined before ALSA
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source "sound/usb/Kconfig"
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source "sound/firewire/Kconfig"
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# the following will depend on the order of config.
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# here assuming PCMCIA is defined before ALSA
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source "sound/pcmcia/Kconfig"
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source "sound/sparc/Kconfig"
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source "sound/parisc/Kconfig"
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source "sound/soc/Kconfig"
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source "sound/x86/Kconfig"
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source "sound/synth/Kconfig"
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source "sound/xen/Kconfig"
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source "sound/virtio/Kconfig"
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endif # SND
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endif # !UML
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endif # SOUND
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# AC97_BUS is used from both sound and ucb1400
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config AC97_BUS
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tristate
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help
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This is used to avoid config and link hard dependencies between the
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sound subsystem and other function drivers completely unrelated to
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sound although they're sharing the AC97 bus. Concerned drivers
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should "select" this.
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