mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 05:23:34 +00:00
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0+ */
|
||
|
|
/*
|
||
|
|
* Copyright 2018 Google LLC
|
||
|
|
* Written by Simon Glass <sjg@chromium.org>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __AUDIO_CODEC_H__
|
||
|
|
#define __AUDIO_CODEC_H__
|
||
|
|
|
||
|
|
/*
|
||
|
|
* An audio codec turns digital data into sound with various parameters to
|
||
|
|
* control its operation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Operations for sound */
|
||
|
|
struct audio_codec_ops {
|
||
|
|
/**
|
||
|
|
* set_params() - Set audio codec parameters
|
||
|
|
*
|
||
|
|
* @dev: Sound device
|
||
|
|
* @inteface: Interface number to use on codec
|
||
|
|
* @rate: Sampling rate in Hz
|
||
|
|
* @mclk_freq: Codec clock frequency in Hz
|
||
|
|
* @bits_per_sample: Must be 16 or 24
|
||
|
|
* @channels: Number of channels to use (1=mono, 2=stereo)
|
||
|
|
* @return 0 if OK, -ve on error
|
||
|
|
*/
|
||
|
|
int (*set_params)(struct udevice *dev, int interface, int rate,
|
||
|
|
int mclk_freq, int bits_per_sample, uint channels);
|
||
|
|
};
|
||
|
|
|
||
|
|
#define audio_codec_get_ops(dev) ((struct audio_codec_ops *)(dev)->driver->ops)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* audio_codec_set_params() - Set audio codec parameters
|
||
|
|
*
|
||
|
|
* @dev: Sound device
|
||
|
|
* @inteface: Interface number to use on codec
|
||
|
|
* @rate: Sampling rate in Hz
|
||
|
|
* @mclk_freq: Codec clock frequency in Hz
|
||
|
|
* @bits_per_sample: Must be 16 or 24
|
||
|
|
* @channels: Number of channels to use (1=mono, 2=stereo)
|
||
|
|
* @return 0 if OK, -ve on error
|
||
|
|
*/
|
||
|
|
int audio_codec_set_params(struct udevice *dev, int interface, int rate,
|
||
|
|
int mclk_freq, int bits_per_sample, uint channels);
|
||
|
|
|
||
|
|
#endif /* __AUDIO_CODEC_H__ */
|