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_SAMSUNG bool "Enable I2C support for Samsung SoCs" depends on SOUND 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_MAX98095 bool "Support Maxim max98095 audio codec" depends on I2S_SAMSUNG 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