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/* $Id: biosint.h $ */
/** @file
* PC BIOS - ???
*/
/*
* Copyright (C) 2006-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
* --------------------------------------------------------------------
*
* This code is based on:
*
* ROM BIOS for use with Bochs/Plex86/QEMU emulation environment
*
* Copyright (C) 2002 MandrakeSoft S.A.
*
* MandrakeSoft S.A.
* 43, rue d'Aboukir
* 75002 Paris - France
* http://www.linux-mandrake.com/
* http://www.mandrakesoft.com/
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/*
* Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
* other than GPL or LGPL is available it will apply instead, Oracle elects to use only
* the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
* a choice of LGPL license versions is made available with the language indicating
* that LGPLv2 or any later version may be used, or where a choice of which version
* of the LGPL is applied is otherwise unspecified.
*/
#ifndef VBOX_INCLUDED_SRC_PC_BIOS_biosint_h
#define VBOX_INCLUDED_SRC_PC_BIOS_biosint_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/* Compile-time assertion macro. */
#define ct_assert(a) extern int ct_ass_arr[!!(a) == 1];
/* For functions called from assembly code. */
#define BIOSCALL __cdecl
#define BX_ELTORITO_BOOT 1
#define BX_PCIBIOS 1
#define BX_USE_PS2_MOUSE 1
#define BX_APM 1
#ifndef DEBUG_ATA
# define DEBUG_ATA 0
#endif
#ifdef DEBUG_AHCI
# define DEBUG_AHCI 0
#endif
#ifndef DEBUG_SCSI
# define DEBUG_SCSI 0
#endif
#ifndef DEBUG_CD_BOOT
# define DEBUG_CD_BOOT 0
#endif
#ifndef DEBUG_ELTORITO
# define DEBUG_ELTORITO 0
#endif
#ifndef DEBUG_INT13_HD
# define DEBUG_INT13_HD 0
#endif
#ifndef DEBUG_INT13_FL
# define DEBUG_INT13_FL 0
#endif
#ifndef DEBUG_INT13_CD
# define DEBUG_INT13_CD 0
#endif
#ifndef DEBUG_INT15
# define DEBUG_INT15 0
#endif
#ifndef DEBUG_INT15_MS
# define DEBUG_INT15_MS 0
#endif
#ifndef DEBUG_INT16
# define DEBUG_INT16 0
#endif
#ifndef DEBUG_INT1A
# define DEBUG_INT1A 0
#endif
#ifndef DEBUG_INT74
# define DEBUG_INT74 0
#endif
#ifndef DEBUG_PCI
# define DEBUG_PCI 0
#endif
#ifndef DEBUG_APM
# define DEBUG_APM 0
#endif
#ifndef DEBUG_POST
# define DEBUG_POST 0
#endif
#define FP_OFF(p) ((unsigned)(p))
#define FP_SEG(p) ((unsigned)((unsigned long)(void __far*)(p) >> 16))
#define MK_FP(s,o) (((unsigned short)(s)):>((void __near *)(o)))
typedef struct {
union {
struct {
uint16_t di, si, bp, sp;
uint16_t bx, dx, cx, ax;
} r16;
struct {
uint16_t filler[4];
uint8_t bl, bh, dl, dh, cl, ch, al, ah;
} r8;
} u;
} pusha_regs_t;
typedef struct {
union {
struct {
uint32_t edi, esi, ebp, esp;
uint32_t ebx, edx, ecx, eax;
} r32;
struct {
uint16_t di, filler1, si, filler2, bp, filler3, sp, filler4;
uint16_t bx, filler5, dx, filler6, cx, filler7, ax, filler8;
} r16;
struct {
uint32_t filler[4];
uint8_t bl, bh;
uint16_t filler1;
uint8_t dl, dh;
uint16_t filler2;
uint8_t cl, ch;
uint16_t filler3;
uint8_t al, ah;
uint16_t filler4;
} r8;
} u;
} pushad_regs_t;
typedef struct {
union {
struct {
uint16_t flags;
} r16;
struct {
uint8_t flagsl;
uint8_t flagsh;
} r8;
} u;
} flags_t;
typedef struct {
uint16_t ip;
uint16_t cs;
flags_t flags;
} iret_addr_t;
typedef struct {
uint16_t ds;
uint16_t es;
pusha_regs_t gr;
iret_addr_t ra;
} disk_regs_t;
typedef struct {
pusha_regs_t gr;
uint16_t es;
uint16_t ds;
uint16_t ifl;
iret_addr_t ra;
} kbd_regs_t;
typedef struct {
pusha_regs_t gr;
uint16_t es;
uint16_t ds;
flags_t fl;
} sys_regs_t;
typedef struct {
pushad_regs_t gr;
uint16_t es;
uint16_t ds;
flags_t fl;
} sys32_regs_t;
typedef struct {
pusha_regs_t gr;
iret_addr_t ra;
} i1apci_regs_t;
#define SetCF(x) x.u.r8.flagsl |= 0x01
#define SetZF(x) x.u.r8.flagsl |= 0x40
#define ClearCF(x) x.u.r8.flagsl &= 0xfe
#define ClearZF(x) x.u.r8.flagsl &= 0xbf
#define GetCF(x) (x.u.r8.flagsl & 0x01)
#define SET_AL(val8) AX = ((AX & 0xff00) | (val8))
#define SET_BL(val8) BX = ((BX & 0xff00) | (val8))
#define SET_CL(val8) CX = ((CX & 0xff00) | (val8))
#define SET_DL(val8) DX = ((DX & 0xff00) | (val8))
#define SET_AH(val8) AX = ((AX & 0x00ff) | ((val8) << 8))
#define SET_BH(val8) BX = ((BX & 0x00ff) | ((val8) << 8))
#define SET_CH(val8) CX = ((CX & 0x00ff) | ((val8) << 8))
#define SET_DH(val8) DX = ((DX & 0x00ff) | ((val8) << 8))
#define GET_AL() ( AX & 0x00ff )
#define GET_BL() ( BX & 0x00ff )
#define GET_CL() ( CX & 0x00ff )
#define GET_DL() ( DX & 0x00ff )
#define GET_AH() ( AX >> 8 )
#define GET_BH() ( BX >> 8 )
#define GET_CH() ( CX >> 8 )
#define GET_DH() ( DX >> 8 )
#define GET_ELDL() ( ELDX & 0x00ff )
#define GET_ELDH() ( ELDX >> 8 )
#define SET_CF() FLAGS |= 0x0001
#define CLEAR_CF() FLAGS &= 0xfffe
#define GET_CF() (FLAGS & 0x0001)
#define SET_ZF() FLAGS |= 0x0040
#define CLEAR_ZF() FLAGS &= 0xffbf
#define GET_ZF() (FLAGS & 0x0040)
#define SET_IF() FLAGS |= 0x0200
typedef unsigned short bx_bool;
#define BX_VIRTUAL_PORTS 1 /* normal output to Bochs ports */
#define BX_DEBUG_SERIAL 0 /* output to COM1 */
#define BIOS_PRINTF_HALT 1
#define BIOS_PRINTF_SCREEN 2
#define BIOS_PRINTF_INFO 4
#define BIOS_PRINTF_DEBUG 8
#define BIOS_PRINTF_ALL (BIOS_PRINTF_SCREEN | BIOS_PRINTF_INFO)
#define BIOS_PRINTF_DEBHALT (BIOS_PRINTF_SCREEN | BIOS_PRINTF_INFO | BIOS_PRINTF_HALT)
extern const char bios_prefix_string[];
extern void bios_printf(uint16_t action, const char *s, ...);
extern void put_str(uint16_t action, const char __far *s);
extern void put_str_near(uint16_t action, const char __near *s);
extern uint8_t inb_cmos(uint8_t cmos_reg);
extern void outb_cmos(uint8_t cmos_reg, uint8_t val);
extern uint16_t cdrom_boot(void);
extern void show_logo(void);
extern void delay_boot(uint16_t secs);
extern bx_bool set_enable_a20(bx_bool val);
#define printf(...) bios_printf(BIOS_PRINTF_SCREEN, __VA_ARGS__)
// Defines the output macros.
// BX_DEBUG goes to INFO port until we can easily choose debug info on a
// per-device basis. Debug info are sent only in debug mode
#define DEBUG_ROMBIOS 1
#if DEBUG_ROMBIOS
# define BX_DEBUG(...) bios_printf(BIOS_PRINTF_INFO, __VA_ARGS__)
#else
# define BX_DEBUG(...)
#endif
#ifdef VBOX
#define BX_INFO(...) do { put_str(BIOS_PRINTF_INFO, bios_prefix_string); bios_printf(BIOS_PRINTF_INFO, __VA_ARGS__); } while (0)
#else /* !VBOX */
#define BX_INFO(...) bios_printf(BIOS_PRINTF_INFO, __VA_ARGS__)
#endif /* !VBOX */
#define BX_PANIC(...) bios_printf(BIOS_PRINTF_DEBHALT, __VA_ARGS__)
/* Because we don't tell the recompiler when guest physical memory
* is written, it can incorrectly cache guest code overwritten by
* DMA (bus master or not). We just re-write the memory block to flush
* any of its caches. This is not exactly efficient, but works!
*/
#define DMA_WORKAROUND 1
/* Random hardware-related definitions. */
#define PIC_MASTER 0x20
#define PIC_MASTER_MASK 0x21
#define PIC_SLAVE 0xA0
#define PIC_SLAVE_MASK 0xA1
#define PIC_CMD_EOI 0x20
#define PIC_CMD_RD_ISR 0x0B
#define PIC_CMD_INIT 0x11
#endif /* !VBOX_INCLUDED_SRC_PC_BIOS_biosint_h */
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