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The Intel High-definition Audio is a newer-generation audio system which provides for transfer of a large number of audio stream, each containing up to 16 channels. Add support for HDA as a library which can be used by other drivers. U-Boot currently uses only two channels (stereo). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
26 lines
641 B
Plaintext
26 lines
641 B
Plaintext
* Intel High-definition Audio
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Configuration is set using 'verbs' which are blocks of 16 bytes of data each
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with a different purpose, a little like a simple instruction set.
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Top-level node
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--------------
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Required properties:
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- compatible: "intel,hd-audio"
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- beep-verbs: list of verbs to send for a beep
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Optional properties
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- intel,beep-nid: Node ID to use for beep (will be detected if not provided)
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Required subnodes:
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- codecs: Contains a list of codec nodes
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* Codec nodes
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Required properties:
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- vendor-id: 16-bit vendor ID for audio codec
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- device-id: 16-bit device ID for audio codec
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- verbs: List of verbs, each 4 cells in length
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