Ken Van Hoeylandt
15 lines
989 B
Markdown
15 lines
989 B
Markdown
# Audio codec module
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Defines codec-agnostic `AudioCodecApi` (open/close/read/write/volume/mute/native-rate/native-channels/capabilities)
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that every audio codec driver in this repo implements (ES8311, ES8388, ES7210, AW88298, the dummy I2S amps, the PDM mic).
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This is intentionally low-level: no resampling or mixing, one codec device per chip. Most app code should go through
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`audio_stream` (see `Drivers/audio-stream-module`) instead of talking to a codec device directly.
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Also provides `audio_codec_adapters.h`: glue that lets a codec driver build an `esp_codec_dev` control/data/GPIO
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interface (`audio_codec_ctrl_if_t` / `audio_codec_data_if_t` / `audio_codec_gpio_if_t`) directly from Tactility's
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own I2C controller, I2S controller, and GPIO pin devices, so a codec driver only ever needs
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`device_get_parent()`/`device_find_by_name()` plus a handful of devicetree properties -- it never touches the platform
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I2C/I2S/GPIO APIs directly.
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License: [Apache v2.0](LICENSE-Apache-2.0.md)
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