forked from Minki/linux
103f528d3b
The biggest changes here one again come from Mormioto-san who has
continued his dilligent work cleaning up long standing issues in the
APIs, it's particularly nice to see the transition from digital_mute()
to mute_stream() finally completed. There's also been a lot of work on
the x86 code again, this time a big focus has been on cleaning up some
issues identified by various static tests, and on the Freescale systems.
Otherwise the biggest thing has been a lot of driver additions:
- Convert users of digital_mute() to mute_stream().
- Simplify I/O helper functions.
- Add a helper for getting the RTD from a substream.
- Many, many fixes and cleanups to the x86 code.
- New drivers for Freescale MQS and i.MX6sx, Intel KeemBay I2S, Maxim
MAX98360A and MAX98373 Soundwire, several Mediatek boards, nVidia
Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries boards (some
of the first phones I worked on!) and TI J721e EVM.
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Merge tag 'asoc-v5.9' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.9
The biggest changes here one again come from Mormioto-san who has
continued his dilligent work cleaning up long standing issues in the
APIs, it's particularly nice to see the transition from digital_mute()
to mute_stream() finally completed. There's also been a lot of work on
the x86 code again, this time a big focus has been on cleaning up some
issues identified by various static tests, and on the Freescale systems.
Otherwise the biggest thing has been a lot of driver additions:
- Convert users of digital_mute() to mute_stream().
- Simplify I/O helper functions.
- Add a helper for getting the RTD from a substream.
- Many, many fixes and cleanups to the x86 code.
- New drivers for Freescale MQS and i.MX6sx, Intel KeemBay I2S, Maxim
MAX98360A and MAX98373 Soundwire, several Mediatek boards, nVidia
Tegra 186 and 210, RealTek RL6231, Samsung Midas and Aries boards (some
of the first phones I worked on!) and TI J721e EVM.
126 lines
2.5 KiB
C
126 lines
2.5 KiB
C
/* 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 - https://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 <sound/asoundef.h>
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#include <sound/soc.h>
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#include <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 (*mute_stream)(struct device *dev, void *data,
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bool enable, int direction);
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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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/* bit field */
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unsigned int no_capture_mute:1;
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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__ */
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