diff options
| author | thead_admin <occ_thead@service.alibaba.com> | 2022-09-13 11:04:33 +0800 |
|---|---|---|
| committer | thead_admin <occ_thead@service.alibaba.com> | 2022-09-13 11:04:33 +0800 |
| commit | 43db9e00d5837c100c0b2fbbee64a08ab807d1e0 (patch) | |
| tree | b40c0eed02935b6682e8c5c975e3016b6b2f55fe /include/audio_codec.h | |
Linux_SDK_V0.9.5Linux_SDK_V0.9.5
Diffstat (limited to 'include/audio_codec.h')
| -rw-r--r-- | include/audio_codec.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/audio_codec.h b/include/audio_codec.h new file mode 100644 index 00000000..25870995 --- /dev/null +++ b/include/audio_codec.h @@ -0,0 +1,48 @@ +/* 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__ */ |