1
  *   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿ¿ƒ@_†I|¥+ÃÂ 	i    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef __SOUND_PCM_DRM_ELD_H
#define __SOUND_PCM_DRM_ELD_H

enum eld_versions {
	ELD_VER_CEA_861D	= 2,
	ELD_VER_PARTIAL		= 31,
};

enum cea_audio_coding_types {
	AUDIO_CODING_TYPE_REF_STREAM_HEADER	=  0,
	AUDIO_CODING_TYPE_LPCM			=  1,
	AUDIO_CODING_TYPE_AC3			=  2,
	AUDIO_CODING_TYPE_MPEG1			=  3,
	AUDIO_CODING_TYPE_MP3			=  4,
	AUDIO_CODING_TYPE_MPEG2			=  5,
	AUDIO_CODING_TYPE_AACLC			=  6,
	AUDIO_CODING_TYPE_DTS			=  7,
	AUDIO_CODING_TYPE_ATRAC			=  8,
	AUDIO_CODING_TYPE_SACD			=  9,
	AUDIO_CODING_TYPE_EAC3			= 10,
	AUDIO_CODING_TYPE_DTS_HD		= 11,
	AUDIO_CODING_TYPE_MLP			= 12,
	AUDIO_CODING_TYPE_DST			= 13,
	AUDIO_CODING_TYPE_WMAPRO		= 14,
	AUDIO_CODING_TYPE_REF_CXT		= 15,
	/* also include valid xtypes below */
	AUDIO_CODING_TYPE_HE_AAC		= 15,
	AUDIO_CODING_TYPE_HE_AAC2		= 16,
	AUDIO_CODING_TYPE_MPEG_SURROUND		= 17,
};

enum cea_audio_coding_xtypes {
	AUDIO_CODING_XTYPE_HE_REF_CT		= 0,
	AUDIO_CODING_XTYPE_HE_AAC		= 1,
	AUDIO_CODING_XTYPE_HE_AAC2		= 2,
	AUDIO_CODING_XTYPE_MPEG_SURROUND	= 3,
	AUDIO_CODING_XTYPE_FIRST_RESERVED	= 4,
};

/*
 * CEA Short Audio Descriptor data
 */
struct snd_cea_sad {
	int	channels;
	int	format;		/* (format == 0) indicates invalid SAD */
	int	rates;
	int	sample_bits;	/* for LPCM */
	int	max_bitrate;	/* for AC3...ATRAC */
	int	profile;	/* for WMAPRO */
};

#define ELD_FIXED_BYTES	20
#define ELD_MAX_SIZE    256
#define ELD_MAX_MNL	16
#define ELD_MAX_SAD	16

#define ELD_PCM_BITS_8		BIT(0)
#define ELD_PCM_BITS_16		BIT(1)
#define ELD_PCM_BITS_20		BIT(2)
#define ELD_PCM_BITS_24		BIT(3)
#define ELD_PCM_BITS_32		BIT(4)

/*
 * ELD: EDID Like Data
 */
struct snd_parsed_hdmi_eld {
	/*
	 * all fields will be cleared before updating ELD
	 */
	int	baseline_len;
	int	eld_ver;
	int	cea_edid_ver;
	char	monitor_name[ELD_MAX_MNL + 1];
	int	manufacture_id;
	int	product_id;
	u64	port_id;
	int	support_hdcp;
	int	support_ai;
	int	conn_type;
	int	aud_synch_delay;
	int	spk_alloc;
	int	sad_count;
	struct snd_cea_sad sad[ELD_MAX_SAD];
};

int snd_pcm_hw_constraint_eld(struct snd_pcm_runtime *runtime, void *eld);

int snd_parse_eld(struct device *dev, struct snd_parsed_hdmi_eld *e,
		  const unsigned char *buf, int size);
void snd_show_eld(struct device *dev, struct snd_parsed_hdmi_eld *e);

#ifdef CONFIG_SND_PROC_FS
void snd_print_eld_info(struct snd_parsed_hdmi_eld *eld,
			struct snd_info_buffer *buffer);
#endif

#endif
  #   ˆ¿Àƒ€{¾a–Ým_J*j"TârãLÜh
bÑ¿Ã 
0    /* SPDX-License-Identifier: GPL-2.0-only */
/*
 * sm3_base.h - core logic for SM3 implementations
 *
 * Copyright (C) 2017 ARM Limited or its affiliates.
 * Written by Gilad Ben-Yossef <gilad@benyossef.com>
 */

#ifndef _CRYPTO_SM3_BASE_H
#define _CRYPTO_SM3_BASE_H

#include <crypto/internal/hash.h>
#include <crypto/sm3.h>
#include <linux/crypto.h>
#include <linux/module.h>
#include <linux/string.h>
#include <asm/unaligned.h>

typedef void (sm3_block_fn)(struct sm3_state *sst, u8 const *src, int blocks);

static inline int sm3_base_init(struct shash_desc *desc)
{
	struct sm3_state *sctx = shash_desc_ctx(desc);

	sctx->state[0] = SM3_IVA;
	sctx->state[1] = SM3_IVB;
	sctx->state[2] = SM3_IVC;
	sctx->state[3] = SM3_IVD;
	sctx->state[4] = SM3_IVE;
	sctx->state[5] = SM3_IVF;
	sctx->state[6] = SM3_IVG;
	sctx->state[7] = SM3_IVH;
	sctx->count = 0;

	return 0;
}

static inline int sm3_base_do_update(struct shash_desc *desc,
				      const u8 *data,
				      unsigned int len,
				      sm3_block_fn *block_fn)
{
	struct sm3_state *sctx = shash_desc_ctx(desc);
	unsigned int partial = sctx->count % SM3_BLOCK_SIZE;

	sctx->count += len;

	if (unlikely((partial + len) >= SM3_BLOCK_SIZE)) {
		int blocks;

		if (partial) {
			int p = SM3_BLOCK_SIZE - partial;

			memcpy(sctx->buffer + partial, data, p);
			data += p;
			len -= p;

			block_fn(sctx, sctx->buffer, 1);
		}

		blocks = len / SM3_BLOCK_SIZE;
		len %= SM3_BLOCK_SIZE;

		if (blocks) {
			block_fn(sctx, data, blocks);
			data += blocks * SM3_BLOCK_SIZE;
		}
		partial = 0;
	}
	if (len)
		memcpy(sctx->b