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Audio underlying driver

Source: Internet
Author: User
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Driver Components

Asocsplits an embedded audio system into 3 components :-

 

* Codec DRIVER: the codec driver is platformindependent and contains audio

Controls, audio interface capabilities, codec dapm definition and CODEC Io

Functions.

 

* Platform DRIVER: The Platform drivercontains the audio DMA engine and audio interface drivers (e.g. I2S, ac97, PCM) for that platform.

 

* Machine driver: The machine driver handlesany machine specific controls and Audio events (e.g. Turning on an amp at startof playback ).

Driver file Composition Ad1938 with ASOC Codec Ad1938 codec DRIVER: Sound/soc/codecs/ad1938.h Sound/soc/codecs/ad1938.c

Platform TDM Dai DRIVER: Sound/soc/Blackfin/bf5xx-tdm.h Sound/soc/Blackfin/bf5xx-tdm.c
Tdm pcm (DMA) DRIVER: Sound/soc/Blackfin/bf5xx-tdm-pcm.h Sound/soc/Blackfin/bf5xx-tdm-pcm.c
Sport interface driver: Sound/soc/Blackfin/bf5xx-sport.h Sound/soc/Blackfin/bf5xx-sport.c

Board Machine (board) DRIVER: Sound/soc/Blackfin/bf5xx-ad1938.c
SPI board info: Add related information to arch/Blackfin/Mach-xxx/boards/xxx. c

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Related Keywords:
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