mirror of
https://github.com/torvalds/linux
synced 2024-09-06 01:40:28 +00:00
ASoC: docs: Update the Overview document
Update the ASoC overview to bring it up to date with the current code base and include multi-component. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
parent
6ce4eac1f6
commit
d9e9ff5a8e
|
@ -49,18 +49,23 @@ features :-
|
|||
* Machine specific controls: Allow machines to add controls to the sound card
|
||||
(e.g. volume control for speaker amplifier).
|
||||
|
||||
To achieve all this, ASoC basically splits an embedded audio system into 3
|
||||
components :-
|
||||
To achieve all this, ASoC basically splits an embedded audio system into
|
||||
multiple re-usable component drivers :-
|
||||
|
||||
* Codec driver: The codec driver is platform independent and contains audio
|
||||
controls, audio interface capabilities, codec DAPM definition and codec IO
|
||||
functions.
|
||||
* Codec class drivers: The codec class driver is platform independent and
|
||||
contains audio controls, audio interface capabilities, codec DAPM
|
||||
definition and codec IO functions. This class extends to BT, FM and MODEM
|
||||
ICs if required. Codec class drivers should be generic code that can run
|
||||
on any architecture and machine.
|
||||
|
||||
* Platform driver: The platform driver contains the audio DMA engine and audio
|
||||
interface drivers (e.g. I2S, AC97, PCM) for that platform.
|
||||
* Platform class drivers: The platform class driver includes the audio DMA
|
||||
engine driver, digital audio interface (DAI) drivers (e.g. I2S, AC97, PCM)
|
||||
and any audio DSP drivers for that platform.
|
||||
|
||||
* Machine driver: The machine driver handles any machine specific controls and
|
||||
audio events (e.g. turning on an amp at start of playback).
|
||||
* Machine class driver: The machine driver class acts as the glue that
|
||||
decribes and binds the other component drivers together to form an ALSA
|
||||
"sound card device". It handles any machine specific controls and
|
||||
machine level audio events (e.g. turning on an amp at start of playback).
|
||||
|
||||
|
||||
Documentation
|
||||
|
@ -84,3 +89,7 @@ machine.txt: Machine driver internals.
|
|||
pop_clicks.txt: How to minimise audio artifacts.
|
||||
|
||||
clocking.txt: ASoC clocking for best power performance.
|
||||
|
||||
jack.txt: ASoC jack detection.
|
||||
|
||||
DPCM.txt: Dynamic PCM - Describes DPCM with DSP examples.
|
||||
|
|
Loading…
Reference in a new issue