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Viewing changes to buildroot/src/oem-audiosdw-lp1836324-0.6ubuntu1.2/include/dkms/sound/hdmi-codec.h

  • Committer: Hui Wang
  • Date: 2019-12-13 02:41:40 UTC
  • Revision ID: hui.wang@canonical.com-20191213024140-1cprdcbl3122fn85
insert pc-oem-dkms

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buildroot/src/oem-audiosdw-lp1836324-0.6ubuntu1.2/include/dkms/sound/hdmi-codec.h
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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 * hdmi-codec.h - HDMI Codec driver API
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 *
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 * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
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 *
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 * Author: Jyri Sarha <jsarha@ti.com>
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 */
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#ifndef __HDMI_CODEC_H__
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#define __HDMI_CODEC_H__
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#include <linux/of_graph.h>
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#include <linux/hdmi.h>
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#include <drm/drm_edid.h>
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#include <dkms/sound/asoundef.h>
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#include <dkms/sound/soc.h>
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#include <dkms/uapi/sound/asound.h>
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/*
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 * Protocol between ASoC cpu-dai and HDMI-encoder
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 */
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struct hdmi_codec_daifmt {
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        enum {
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                HDMI_I2S,
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                HDMI_RIGHT_J,
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                HDMI_LEFT_J,
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                HDMI_DSP_A,
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                HDMI_DSP_B,
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                HDMI_AC97,
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                HDMI_SPDIF,
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        } fmt;
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        unsigned int bit_clk_inv:1;
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        unsigned int frame_clk_inv:1;
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        unsigned int bit_clk_master:1;
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        unsigned int frame_clk_master:1;
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};
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/*
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 * HDMI audio parameters
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 */
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struct hdmi_codec_params {
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        struct hdmi_audio_infoframe cea;
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        struct snd_aes_iec958 iec;
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        int sample_rate;
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        int sample_width;
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        int channels;
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};
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typedef void (*hdmi_codec_plugged_cb)(struct device *dev,
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                                      bool plugged);
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struct hdmi_codec_pdata;
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struct hdmi_codec_ops {
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        /*
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         * Called when ASoC starts an audio stream setup.
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         * Optional
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         */
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        int (*audio_startup)(struct device *dev, void *data);
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        /*
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         * Configures HDMI-encoder for audio stream.
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         * Mandatory
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         */
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        int (*hw_params)(struct device *dev, void *data,
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                         struct hdmi_codec_daifmt *fmt,
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                         struct hdmi_codec_params *hparms);
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        /*
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         * Shuts down the audio stream.
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         * Mandatory
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         */
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        void (*audio_shutdown)(struct device *dev, void *data);
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        /*
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         * Mute/unmute HDMI audio stream.
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         * Optional
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         */
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        int (*digital_mute)(struct device *dev, void *data, bool enable);
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        /*
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         * Provides EDID-Like-Data from connected HDMI device.
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         * Optional
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         */
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        int (*get_eld)(struct device *dev, void *data,
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                       uint8_t *buf, size_t len);
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        /*
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         * Getting DAI ID
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         * Optional
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         */
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        int (*get_dai_id)(struct snd_soc_component *comment,
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                          struct device_node *endpoint);
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        /*
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         * Hook callback function to handle connector plug event.
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         * Optional
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         */
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        int (*hook_plugged_cb)(struct device *dev, void *data,
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                               hdmi_codec_plugged_cb fn,
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                               struct device *codec_dev);
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};
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/* HDMI codec initalization data */
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struct hdmi_codec_pdata {
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        const struct hdmi_codec_ops *ops;
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        uint i2s:1;
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        uint spdif:1;
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        int max_i2s_channels;
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        void *data;
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};
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struct snd_soc_component;
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struct snd_soc_jack;
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int hdmi_codec_set_jack_detect(struct snd_soc_component *component,
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                               struct snd_soc_jack *jack);
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#define HDMI_CODEC_DRV_NAME "hdmi-audio-codec"
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#endif /* __HDMI_CODEC_H__ */