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include/audio_codec.h
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ce6d99a05 dm: sound: Create... |
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/* 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__ */ |