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 I2S 16 bool "Enable I2S support" 17 depends on SOUND 18 help 19 I2S is a serial bus often used to transmit audio data from the 20 SoC to the audio codec. This option enables sound support using 21 I2S. It calls either of the two supported codecs (no use is made 22 of driver model at present). 23 24config I2S_SAMSUNG 25 bool "Enable I2C support for Samsung SoCs" 26 depends on SOUND 27 help 28 Samsung Exynos SoCs support an I2S interface for sending audio 29 data to an audio codec. This option enables support for this, 30 using one of the available audio codec drivers. Enabling this 31 option provides an implementation for sound_init() and 32 sound_play(). 33 34config SOUND_MAX98095 35 bool "Support Maxim max98095 audio codec" 36 depends on I2S_SAMSUNG 37 help 38 Enable the max98095 audio codec. This is connected via I2S for 39 audio data and I2C for codec control. At present it only works 40 with the Samsung I2S driver. 41 42config SOUND_SANDBOX 43 bool "Support sandbox emulated audio codec" 44 depends on SANDBOX && SOUND 45 help 46 U-Boot sandbox can emulate a sound device using SDL, playing the 47 sound on the host machine. This option implements the sound_init() 48 and sound_play() functions for sandbox. Note that you must install 49 the SDL libraries for this to work. 50 51config SOUND_WM8994 52 bool "Support Wolfson Micro wm8994 audio codec" 53 depends on I2S_SAMSUNG 54 help 55 Enable the wm8994 audio codec. This is connected via I2S for 56 audio data and I2C for codec control. At present it only works 57 with the Samsung I2S driver. 58 59endmenu 60