JFIF$        dd7 

Viewing File: /usr/src/kernels/5.14.0-570.32.1.el9_6.x86_64/include/sound/hdmi-codec.h

/* 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 <drm/drm_edid.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);

	/*
	 * 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);

	/* bit field */
	unsigned int no_capture_mute:1;
};

/* HDMI codec initalization data */
struct hdmi_codec_pdata {
	const struct hdmi_codec_ops *ops;
	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;
	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__ */
Back to Directory  nL+D550H?Mx ,D"v]qv;6*Zqn)ZP0!1 A "#a$2Qr D8 a Ri[f\mIykIw0cuFcRı?lO7к_f˓[C$殷WF<_W ԣsKcëIzyQy/_LKℂ;C",pFA:/]=H  ~,ls/9ć:[=/#f;)x{ٛEQ )~ =𘙲r*2~ a _V=' kumFD}KYYC)({ *g&f`툪ry`=^cJ.I](*`wq1dđ#̩͑0;H]u搂@:~וKL Nsh}OIR*8:2 !lDJVo(3=M(zȰ+i*NAr6KnSl)!JJӁ* %݉?|D}d5:eP0R;{$X'xF@.ÊB {,WJuQɲRI;9QE琯62fT.DUJ;*cP A\ILNj!J۱+O\͔]ޒS߼Jȧc%ANolՎprULZԛerE2=XDXgVQeӓk yP7U*omQIs,K`)6\G3t?pgjrmۛجwluGtfh9uyP0D;Uڽ"OXlif$)&|ML0Zrm1[HXPlPR0'G=i2N+0e2]]9VTPO׮7h(F*癈'=QVZDF,d߬~TX G[`le69CR(!S2!P <0x<!1AQ "Raq02Br#SCTb ?Ζ"]mH5WR7k.ۛ!}Q~+yԏz|@T20S~Kek *zFf^2X*(@8r?CIuI|֓>^ExLgNUY+{.RѪ τV׸YTD I62'8Y27'\TP.6d&˦@Vqi|8-OΕ]ʔ U=TL8=;6c| !qfF3aů&~$l}'NWUs$Uk^SV:U# 6w++s&r+nڐ{@29 gL u"TÙM=6(^"7r}=6YݾlCuhquympǦ GjhsǜNlɻ}o7#S6aw4!OSrD57%|?x>L |/nD6?/8w#[)L7+6〼T ATg!%5MmZ/c-{1_Je"|^$'O&ޱմTrb$w)R$& N1EtdU3Uȉ1pM"N*(DNyd96.(jQ)X 5cQɎMyW?Q*!R>6=7)Xj5`J]e8%t!+'!1Q5 !1 AQaqё#2"0BRb?Gt^## .llQT $v,,m㵜5ubV =sY+@d{N! dnO<.-B;_wJt6;QJd.Qc%p{ 1,sNDdFHI0ГoXшe黅XۢF:)[FGXƹ/w_cMeD,ʡcc.WDtA$j@:) -# u c1<@ۗ9F)KJ-hpP]_x[qBlbpʖw q"LFGdƶ*s+ډ_Zc"?%t[IP 6J]#=ɺVvvCGsGh1 >)6|ey?Lӣm,4GWUi`]uJVoVDG< SB6ϏQ@ TiUlyOU0kfV~~}SZ@*WUUi##; s/[=!7}"WN]'(L! ~y5g9T̅JkbM' +s:S +B)v@Mj e Cf jE 0Y\QnzG1д~Wo{T9?`Rmyhsy3!HAD]mc1~2LSu7xT;j$`}4->L#vzŏILS ֭T{rjGKC;bpU=-`BsK.SFw4Mq]ZdHS0)tLg