NTR_Launcher/BootLoader/source/read_card.h

/*
    NitroHax -- Cheat tool for the Nintendo DS
    Copyright (C) 2008  Michael "Chishm" Chisholm

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef READ_CARD_H
#define READ_CARD_H

#include <nds/ndstypes.h>
#include <nds/memory.h>
#include <stdlib.h>

#define CARD_NDS_HEADER_SIZE (0x200)
#define CARD_SECURE_AREA_OFFSET (0x4000)
#define CARD_SECURE_AREA_SIZE (0x4000)
#define CARD_DATA_OFFSET (0x8000)
#define CARD_DATA_BLOCK_SIZE (0x200)

typedef struct {
	char gameTitle[12];			//!< 12 characters for the game title.
	char gameCode[4];			//!< 4 characters for the game code.
	char makercode[2];			//!< identifies the (commercial) developer.
	u8 unitCode;				//!< identifies the required hardware.
	u8 deviceType;				//!< type of device in the game card
	u8 deviceSize;				//!< capacity of the device (1 << n Mbit)
	u8 reserved1[9];
	u8 romversion;				//!< version of the ROM.
	u8 flags;					//!< bit 2: auto-boot flag.

	u32 arm9romOffset;			//!< offset of the arm9 binary in the nds file.
	u32 arm9executeAddress;		//!< adress that should be executed after the binary has been copied.
	u32 arm9destination;		//!< destination address to where the arm9 binary should be copied.
	u32 arm9binarySize;			//!< size of the arm9 binary.

	u32 arm7romOffset;			//!< offset of the arm7 binary in the nds file.
	u32 arm7executeAddress;		//!< adress that should be executed after the binary has been copied.
	u32 arm7destination;		//!< destination address to where the arm7 binary should be copied.
	u32 arm7binarySize;			//!< size of the arm7 binary.

	u32 filenameOffset;			//!< File Name Table (FNT) offset.
	u32 filenameSize;			//!< File Name Table (FNT) size.
	u32 fatOffset;				//!< File Allocation Table (FAT) offset.
	u32 fatSize;				//!< File Allocation Table (FAT) size.

	u32 arm9overlaySource;		//!< File arm9 overlay offset.
	u32 arm9overlaySize;		//!< File arm9 overlay size.
	u32 arm7overlaySource;		//!< File arm7 overlay offset.
	u32 arm7overlaySize;		//!< File arm7 overlay size.

	u32 cardControl13;			//!< Port 40001A4h setting for normal commands (used in modes 1 and 3)
	u32 cardControlBF;			//!< Port 40001A4h setting for KEY1 commands (used in mode 2)
	u32 bannerOffset;			//!< offset to the banner with icon and titles etc.

	u16 secureCRC16;			//!< Secure Area Checksum, CRC-16.

	u16 readTimeout;			//!< Secure Area Loading Timeout.

	u32 unknownRAM1;			//!< ARM9 Auto Load List RAM Address (?)
	u32 unknownRAM2;			//!< ARM7 Auto Load List RAM Address (?)

	u32 bfPrime1;				//!< Secure Area Disable part 1.
	u32 bfPrime2;				//!< Secure Area Disable part 2.
	u32 romSize;				//!< total size of the ROM.

	u32 headerSize;				//!< ROM header size.
	u32 zeros88[14];
	u8 gbaLogo[156];			//!< Nintendo logo needed for booting the game.
	u16 logoCRC16;				//!< Nintendo Logo Checksum, CRC-16.
	u16 headerCRC16;			//!< header checksum, CRC-16.

	u32 debugRomSource;			//!< debug ROM offset.
	u32 debugRomSize;			//!< debug size.
	u32 debugRomDestination;	//!< debug RAM destination.
	u32 offset_0x16C;			//reserved?

	u8 zero[0x40];
	u32 region;
	u32 accessControl;
	u32 arm7SCFGSettings;
	u16 dsi_unk1;
	u8 dsi_unk2;
	u8 dsi_flags;

	u32 arm9iromOffset;			//!< offset of the arm9 binary in the nds file.
	u32 arm9iexecuteAddress;
	u32 arm9idestination;		//!< destination address to where the arm9 binary should be copied.
	u32 arm9ibinarySize;		//!< size of the arm9 binary.

	u32 arm7iromOffset;			//!< offset of the arm7 binary in the nds file.
	u32 deviceListDestination;
	u32 arm7idestination;		//!< destination address to where the arm7 binary should be copied.
	u32 arm7ibinarySize;		//!< size of the arm7 binary.

	u8 zero2[0x20];

	// 0x200
	// TODO: More DSi-specific fields.
	u32 dsi1[0x10/4];
	u32 twlRomSize;
	u32 dsi_unk3;
	u32 dsi_unk4;
	u32 dsi_unk5;
	u8 dsi2[0x10];
	u32 dsi_tid;
	u32 dsi_tid2;
	u32 pubSavSize;
	u32 prvSavSize;
	u8 dsi3[0x174];
} sNDSHeaderExt;

u32 cardInit (sNDSHeaderExt* ndsHeader, u32* chipID);
void cardRead (u32 src, u32* dest, size_t size);
// u32 cardInitShort (sNDSHeaderExt* ndsHeader, u32* chipID);

#endif // READ_CARD_H