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menu "Sound support"
config SOUND
bool "Enable sound support"
help
Support making sounds through an audio codec. This is normally a
beep at a chosen frequency for a selected length of time. However
the drivers support playing arbitrary sound samples using a
PCM interface.
Note: At present the sound setup is somewhat tangled up in that the
audio codecs are called from the sound-i2s code. This could be
converted to driver model.
config I2S
bool "Enable I2S support"
depends on SOUND
help
I2S is a serial bus often used to transmit audio data from the
SoC to the audio codec. This option enables sound support using
I2S. It calls either of the two supported codecs (no use is made
of driver model at present).
config I2S_ROCKCHIP
bool "Enable I2S support for Rockchip SoCs"
depends on I2S
help
Rockchip SoCs support an I2S interface for sending audio data to an
audio codec. This option enables support for this, using one of the
available audio codec drivers. This driver does not make use of
DMA, but writes each word directly to the hardware.
config I2S_SAMSUNG
bool "Enable I2C support for Samsung SoCs"
depends on I2S
help
Samsung Exynos SoCs support an I2S interface for sending audio
data to an audio codec. This option enables support for this,
using one of the available audio codec drivers. Enabling this
option provides an implementation for sound_init() and
sound_play().
config SOUND_MAX98088
bool "Support Maxim max98088 audio codec"
depends on I2S
help
Enable the max98088 audio codec. This is connected via I2S for
audio data and I2C for codec control. At present it only works
with the Samsung I2S driver.
config SOUND_MAX98090
bool "Support Maxim max98090 audio codec"
depends on I2S
help
Enable the max98090 audio codec. This is connected via I2S for
audio data and I2C for codec control. At present it only works
with the Samsung I2S driver.
config SOUND_MAX98095
bool "Support Maxim max98095 audio codec"
depends on I2S
help
Enable the max98095 audio codec. This is connected via I2S for
audio data and I2C for codec control. At present it only works
with the Samsung I2S driver.
config SOUND_SANDBOX
bool "Support sandbox emulated audio codec"
depends on SANDBOX && SOUND
help
U-Boot sandbox can emulate a sound device using SDL, playing the
sound on the host machine. This option implements the sound_init()
and sound_play() functions for sandbox. Note that you must install
the SDL libraries for this to work.
config SOUND_WM8994
bool "Support Wolfson Micro wm8994 audio codec"
depends on I2S_SAMSUNG
help
Enable the wm8994 audio codec. This is connected via I2S for
audio data and I2C for codec control. At present it only works
with the Samsung I2S driver.
endmenu
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