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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__
- struct udevice;
- /*
- * 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__ */
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