| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved. |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _DP_AUDIO_H_ |
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| 7 | #define _DP_AUDIO_H_ |
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| 8 | |
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| 9 | #include <linux/platform_device.h> |
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| 10 | |
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| 11 | #include "dp_panel.h" |
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| 12 | #include "dp_catalog.h" |
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| 13 | #include <sound/hdmi-codec.h> |
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| 14 | |
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| 15 | /** |
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| 16 | * struct dp_audio |
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| 17 | * @lane_count: number of lanes configured in current session |
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| 18 | * @bw_code: link rate's bandwidth code for current session |
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| 19 | */ |
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| 20 | struct dp_audio { |
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| 21 | u32 lane_count; |
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| 22 | u32 bw_code; |
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| 23 | }; |
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| 24 | |
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| 25 | /** |
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| 26 | * dp_audio_get() |
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| 27 | * |
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| 28 | * Creates and instance of dp audio. |
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| 29 | * |
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| 30 | * @pdev: caller's platform device instance. |
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| 31 | * @panel: an instance of dp_panel module. |
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| 32 | * @catalog: an instance of dp_catalog module. |
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| 33 | * |
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| 34 | * Returns the error code in case of failure, otherwize |
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| 35 | * an instance of newly created dp_module. |
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| 36 | */ |
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| 37 | struct dp_audio *dp_audio_get(struct platform_device *pdev, |
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| 38 | struct dp_panel *panel, |
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| 39 | struct dp_catalog *catalog); |
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| 40 | |
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| 41 | /** |
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| 42 | * dp_register_audio_driver() |
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| 43 | * |
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| 44 | * Registers DP device with hdmi_codec interface. |
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| 45 | * |
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| 46 | * @dev: DP device instance. |
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| 47 | * @dp_audio: an instance of dp_audio module. |
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| 48 | * |
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| 49 | * |
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| 50 | * Returns the error code in case of failure, otherwise |
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| 51 | * zero on success. |
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| 52 | */ |
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| 53 | int dp_register_audio_driver(struct device *dev, |
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| 54 | struct dp_audio *dp_audio); |
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| 55 | |
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| 56 | void dp_unregister_audio_driver(struct device *dev, struct dp_audio *dp_audio); |
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| 57 | |
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| 58 | /** |
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| 59 | * dp_audio_put() |
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| 60 | * |
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| 61 | * Cleans the dp_audio instance. |
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| 62 | * |
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| 63 | * @dp_audio: an instance of dp_audio. |
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| 64 | */ |
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| 65 | void dp_audio_put(struct dp_audio *dp_audio); |
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| 66 | |
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| 67 | int dp_audio_hw_params(struct device *dev, |
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| 68 | void *data, |
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| 69 | struct hdmi_codec_daifmt *daifmt, |
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| 70 | struct hdmi_codec_params *params); |
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| 71 | |
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| 72 | #endif /* _DP_AUDIO_H_ */ |
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| 73 | |
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| 74 | |
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| 75 | |
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