Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141/* SPDX-License-Identifier: GPL-2.0-only *//* * hdmi-codec.h - HDMI Codec driver API * * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com * * Author: Jyri Sarha <jsarha@ti.com> */
#ifndef __HDMI_CODEC_H__#define __HDMI_CODEC_H__
#include <linux/of_graph.h>#include <linux/hdmi.h>#include <sound/asoundef.h>#include <sound/soc.h>#include <uapi/sound/asound.h>
/* * Protocol between ASoC cpu-dai and HDMI-encoder */struct hdmi_codec_daifmt { enum { HDMI_I2S, HDMI_RIGHT_J, HDMI_LEFT_J, HDMI_DSP_A, HDMI_DSP_B, HDMI_AC97, HDMI_SPDIF, } fmt; unsigned int bit_clk_inv:1; unsigned int frame_clk_inv:1; unsigned int bit_clk_provider:1; unsigned int frame_clk_provider:1; /* bit_fmt could be standard PCM format or * IEC958 encoded format. ALSA IEC958 plugin will pass * IEC958_SUBFRAME format to the underneath driver. */ snd_pcm_format_t bit_fmt;};
/* * HDMI audio parameters */struct hdmi_codec_params { struct hdmi_audio_infoframe cea; struct snd_aes_iec958 iec; int sample_rate; int sample_width; int channels;};
typedef void (*hdmi_codec_plugged_cb)(struct device *dev, bool plugged);
struct hdmi_codec_pdata;struct hdmi_codec_ops { /* * Called when ASoC starts an audio stream setup. * Optional */ int (*audio_startup)(struct device *dev, void *data);
/* * Configures HDMI-encoder for audio stream. * Having either prepare or hw_params is mandatory. */ int (*hw_params)(struct device *dev, void *data, struct hdmi_codec_daifmt *fmt, struct hdmi_codec_params *hparms);
/* * Configures HDMI-encoder for audio stream. Can be called * multiple times for each setup. * * Having either prepare or hw_params is mandatory. */ int (*prepare)(struct device *dev, void *data, struct hdmi_codec_daifmt *fmt, struct hdmi_codec_params *hparms);
/* * Shuts down the audio stream. * Mandatory */ void (*audio_shutdown)(struct device *dev, void *data);
/* * Mute/unmute HDMI audio stream. * Optional */ int (*mute_stream)(struct device *dev, void *data, bool enable, int direction);
/* * Provides EDID-Like-Data from connected HDMI device. * Optional */ int (*get_eld)(struct device *dev, void *data, uint8_t *buf, size_t len);
/* * Getting DAI ID * Optional */ int (*get_dai_id)(struct snd_soc_component *comment, struct device_node *endpoint, void *data);
/* * Hook callback function to handle connector plug event. * Optional */ int (*hook_plugged_cb)(struct device *dev, void *data, hdmi_codec_plugged_cb fn, struct device *codec_dev);};
/* HDMI codec initalization data */struct hdmi_codec_pdata { const struct hdmi_codec_ops *ops; u64 i2s_formats; uint i2s:1; uint no_i2s_playback:1; uint no_i2s_capture:1; uint spdif:1; uint no_spdif_playback:1; uint no_spdif_capture:1; uint no_capture_mute:1; int max_i2s_channels; void *data;};
struct snd_soc_component;struct snd_soc_jack;
#define HDMI_CODEC_DRV_NAME "hdmi-audio-codec"
#endif /* __HDMI_CODEC_H__ */