/*
 * Copyright (C) 2016-2018 Richard Hughes <richard@hughsie.com>
 * Copyright (C) 2020 boger wang <boger@goodix.com>
 *
 * SPDX-License-Identifier: LGPL-2.1+
 */

#pragma once

#include <glib.h>

/* protocol */
#define GX_CMD_ACK		0xAA
#define GX_CMD_VERSION		0xD0
#define GX_CMD_RESET		0xB4
#define GX_CMD_UPGRADE		0x80
#define GX_CMD_UPGRADE_INIT	0x00
#define GX_CMD_UPGRADE_DATA	0x01
#define GX_CMD1_DEFAULT		0x00

#define GX_SIZE_CRC32		4

/* type covert */
#define MAKE_CMD_EX(cmd0, cmd1) ((guint16)(((cmd0) << 8) | (cmd1)))

typedef struct {
	guint8		 format[2];
	guint8		 fwtype[8];
	guint8		 fwversion[8];
	guint8		 customer[8];
	guint8		 mcu[8];
	guint8		 sensor[8];
	guint8		 algversion[8];
	guint8		 interface[8];
	guint8		 protocol[8];
	guint8		 flashVersion[8];
	guint8		 reserved[62];
} GxfpVersiomInfo;

typedef struct {
	guint8		 cmd;
	gboolean	 configured;
} GxfpAckMsg;

typedef struct {
	guint8		 result;
	union {
		GxfpAckMsg	ack_msg;
		GxfpVersiomInfo version_info;
	};
} GxfpCmdResp;

typedef enum {
	GX_PKG_TYPE_NORMAL	= 0x80,
	GX_PKG_TYPE_EOP		= 0,
} GxPkgType;

typedef struct __attribute__((__packed__)) {
	guint8		 cmd0;
	guint8		 cmd1;
	guint8		 pkg_flag;
	guint8		 reserved;
	guint16		 len;
	guint8		 crc8;
	guint8		 rev_crc8;
} GxfpPkgHeader;

void		 fu_goodixmoc_build_header	(GxfpPkgHeader	*pheader,
						 guint16	 len,
						 guint8		 cmd0,
						 guint8		 cmd1,
						 GxPkgType	 type);
gboolean	 fu_goodixmoc_parse_header	(guint8		*buf,
						 guint32	 bufsz,
						 GxfpPkgHeader	*pheader,
						 GError		**error);
gboolean	 fu_goodixmoc_parse_body	(guint8		 cmd,
						 guint8		*buf,
						 guint32	 bufsz,
						 GxfpCmdResp	*presp,
						 GError		**error);