1menu "Sound support" 2 3config SOUND 4 bool "Enable sound support" 5 help 6 Support making sounds through an audio codec. This is normally a 7 beep at a chosen frequency for a selected length of time. However 8 the drivers support playing arbitrary sound samples using a 9 PCM interface. 10 11 Note: At present the sound setup is somewhat tangled up in that the 12 audio codecs are called from the sound-i2s code. This could be 13 converted to driver model. 14 15config DM_SOUND 16 bool "Use driver model for sound" 17 help 18 Enable this option to use driver model for sound devices. This is a 19 migration option and will be removed. 20 21config I2S 22 bool "Enable I2S support" 23 depends on SOUND 24 help 25 I2S is a serial bus often used to transmit audio data from the 26 SoC to the audio codec. This option enables sound support using 27 I2S. It calls either of the two supported codecs (no use is made 28 of driver model at present). 29 30config I2S_SAMSUNG 31 bool "Enable I2C support for Samsung SoCs" 32 depends on SOUND 33 help 34 Samsung Exynos SoCs support an I2S interface for sending audio 35 data to an audio codec. This option enables support for this, 36 using one of the available audio codec drivers. Enabling this 37 option provides an implementation for sound_init() and 38 sound_play(). 39 40config SOUND_MAX98095 41 bool "Support Maxim max98095 audio codec" 42 depends on I2S_SAMSUNG 43 help 44 Enable the max98095 audio codec. This is connected via I2S for 45 audio data and I2C for codec control. At present it only works 46 with the Samsung I2S driver. 47 48config SOUND_SANDBOX 49 bool "Support sandbox emulated audio codec" 50 depends on SANDBOX && SOUND 51 help 52 U-Boot sandbox can emulate a sound device using SDL, playing the 53 sound on the host machine. This option implements the sound_init() 54 and sound_play() functions for sandbox. Note that you must install 55 the SDL libraries for this to work. 56 57config SOUND_WM8994 58 bool "Support Wolfson Micro wm8994 audio codec" 59 depends on I2S_SAMSUNG 60 help 61 Enable the wm8994 audio codec. This is connected via I2S for 62 audio data and I2C for codec control. At present it only works 63 with the Samsung I2S driver. 64 65endmenu 66