dosbox-wii/include/bios.h

/*
 *  Copyright (C) 2002-2007  The DOSBox Team
 *
 *  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 2 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef DOSBOX_BIOS_H
#define DOSBOX_BIOS_H

#define BIOS_BASE_ADDRESS_COM1          0x400
#define BIOS_BASE_ADDRESS_COM2          0x402
#define BIOS_BASE_ADDRESS_COM3          0x404
#define BIOS_BASE_ADDRESS_COM4          0x406
#define BIOS_ADDRESS_LPT1               0x408
#define BIOS_ADDRESS_LPT2               0x40a
#define BIOS_ADDRESS_LPT3               0x40c
/* 0x40e is reserved */
#define BIOS_CONFIGURATION              0x410
/* 0x412 is reserved */
#define BIOS_MEMORY_SIZE                0x413
#define BIOS_TRUE_MEMORY_SIZE           0x415
/* #define bios_expansion_memory_size      (*(unsigned int   *) 0x415) */
#define BIOS_KEYBOARD_STATE             0x417
#define BIOS_KEYBOARD_FLAGS1            BIOS_KEYBOARD_STATE
#define BIOS_KEYBOARD_FLAGS2            0x418
#define BIOS_KEYBOARD_TOKEN             0x419
/* used for keyboard input with Alt-Number */
#define BIOS_KEYBOARD_BUFFER_HEAD       0x41a
#define BIOS_KEYBOARD_BUFFER_TAIL       0x41c
#define BIOS_KEYBOARD_BUFFER            0x41e
/* #define bios_keyboard_buffer            (*(unsigned int   *) 0x41e) */
#define BIOS_DRIVE_ACTIVE               0x43e
#define BIOS_DRIVE_RUNNING              0x43f
#define BIOS_DISK_MOTOR_TIMEOUT         0x440
#define BIOS_DISK_STATUS                0x441
/* #define bios_fdc_result_buffer          (*(unsigned short *) 0x442) */
#define BIOS_VIDEO_MODE                 0x449
#define BIOS_SCREEN_COLUMNS             0x44a
#define BIOS_VIDEO_MEMORY_USED          0x44c
#define BIOS_VIDEO_MEMORY_ADDRESS       0x44e
#define BIOS_VIDEO_CURSOR_POS	        0x450


#define BIOS_CURSOR_SHAPE               0x460
#define BIOS_CURSOR_LAST_LINE           0x460
#define BIOS_CURSOR_FIRST_LINE          0x461
#define BIOS_CURRENT_SCREEN_PAGE        0x462
#define BIOS_VIDEO_PORT                 0x463
#define BIOS_VDU_CONTROL                0x465
#define BIOS_VDU_COLOR_REGISTER         0x466
/* 0x467-0x468 is reserved */
#define BIOS_TIMER                      0x46c
#define BIOS_24_HOURS_FLAG              0x470
#define BIOS_KEYBOARD_FLAGS             0x471
#define BIOS_CTRL_ALT_DEL_FLAG          0x472
#define BIOS_HARDDISK_COUNT		0x475
/* 0x474, 0x476, 0x477 is reserved */
#define BIOS_LPT1_TIMEOUT               0x478
#define BIOS_LPT2_TIMEOUT               0x479
#define BIOS_LPT3_TIMEOUT               0x47a
/* 0x47b is reserved */
#define BIOS_COM1_TIMEOUT               0x47c
#define BIOS_COM2_TIMEOUT               0x47d
#define BIOS_COM3_TIMEOUT               0x47e
#define BIOS_COM4_TIMEOUT               0x47f
/* 0x47e is reserved */ //<- why that?
/* 0x47f-0x4ff is unknow for me */
#define BIOS_KEYBOARD_BUFFER_START      0x480
#define BIOS_KEYBOARD_BUFFER_END        0x482

#define BIOS_ROWS_ON_SCREEN_MINUS_1     0x484
#define BIOS_FONT_HEIGHT                0x485

#define BIOS_VIDEO_INFO_0               0x487
#define BIOS_VIDEO_INFO_1               0x488
#define BIOS_VIDEO_INFO_2               0x489
#define BIOS_VIDEO_COMBO                0x48a

#define BIOS_KEYBOARD_FLAGS3            0x496
#define BIOS_KEYBOARD_LEDS              0x497

#define BIOS_WAIT_FLAG_POINTER          0x498
#define BIOS_WAIT_FLAG_COUNT	        0x49c		
#define BIOS_WAIT_FLAG_ACTIVE			0x4a0
#define BIOS_WAIT_FLAG_TEMP				0x4a1


#define BIOS_PRINT_SCREEN_FLAG          0x500

#define BIOS_VIDEO_SAVEPTR              0x4a8

/* maximum of scancodes handled by keyboard bios routines */
#define MAX_SCAN_CODE 0x58

/* The Section handling Bios Disk Access */
#define BIOS_MAX_DISK 10

#define MAX_SWAPPABLE_DISKS 20

struct diskGeo {
	Bit32u ksize;  /* Size in kilobytes */
	Bit16u secttrack; /* Sectors per track */
	Bit16u headscyl;  /* Heads per cylinder */
	Bit16u cylcount;  /* Cylinders per side */
	Bit16u biosval;   /* Type to return from BIOS */
};

extern diskGeo DiskGeometryList[];

#include <stdio.h>
#ifndef DOSBOX_MEM_H
#include "mem.h"
#endif
#ifndef DOSBOX_DOS_INC_H
#include "dos_inc.h"
#endif

class imageDisk  {
public:
	Bit8u Read_Sector(Bit32u head,Bit32u cylinder,Bit32u sector,void * data);
	Bit8u Write_Sector(Bit32u head,Bit32u cylinder,Bit32u sector,void * data);
	Bit8u Read_AbsoluteSector(Bit32u sectnum, void * data);
	Bit8u Write_AbsoluteSector(Bit32u sectnum, void * data);

	void Set_Geometry(Bit32u setHeads, Bit32u setCyl, Bit32u setSect, Bit32u setSectSize);
	void Get_Geometry(Bit32u * getHeads, Bit32u *getCyl, Bit32u *getSect, Bit32u *getSectSize);
	Bit8u GetBiosType(void);
	Bit32u getSectSize(void);
	imageDisk(FILE *imgFile, Bit8u *imgName, Bit32u imgSizeK, bool isHardDisk);
	~imageDisk() { if(diskimg != NULL) { fclose(diskimg); }	};

	bool hardDrive;
	bool active;
	FILE *diskimg;
	Bit8u diskname[512];
	Bit8u floppytype;

	Bit32u sector_size;
	Bit32u heads,cylinders,sectors;
};

void updateDPT(void);

#define MAX_HDD_IMAGES 2

extern imageDisk *imageDiskList[2 + MAX_HDD_IMAGES];
extern imageDisk *diskSwap[20];
extern Bits swapPosition;
extern Bit16u imgDTASeg; /* Real memory location of temporary DTA pointer for fat image disk access */
extern RealPt imgDTAPtr; /* Real memory location of temporary DTA pointer for fat image disk access */
extern DOS_DTA *imgDTA;

void swapInDisks(void);
void swapInNextDisk(void);
bool getSwapRequest(void);

void BIOS_ZeroExtendedSize(bool in);
void char_out(Bit8u chr,Bit32u att,Bit8u page);
void INT10_StartUp(void);
void INT16_StartUp(void);
void INT2A_StartUp(void);
void INT2F_StartUp(void);
void INT33_StartUp(void);
void INT13_StartUp(void);

bool BIOS_AddKeyToBuffer(Bit16u code);

void INT10_ReloadRomFonts();

void BIOS_SetComPorts (Bit16u baseaddr[]);

#endif