[69501] | 1 | /* $Id: biosint.h 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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[78714] | 3 | * PC BIOS - BIOS internal definitions.
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[69501] | 4 | */
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| 5 |
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[38699] | 6 | /*
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[98103] | 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[38699] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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[69498] | 26 | * --------------------------------------------------------------------
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[38699] | 27 | *
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| 28 | * This code is based on:
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| 29 | *
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| 30 | * ROM BIOS for use with Bochs/Plex86/QEMU emulation environment
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| 31 | *
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| 32 | * Copyright (C) 2002 MandrakeSoft S.A.
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| 33 | *
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| 34 | * MandrakeSoft S.A.
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| 35 | * 43, rue d'Aboukir
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| 36 | * 75002 Paris - France
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| 37 | * http://www.linux-mandrake.com/
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| 38 | * http://www.mandrakesoft.com/
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| 39 | *
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| 40 | * This library is free software; you can redistribute it and/or
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| 41 | * modify it under the terms of the GNU Lesser General Public
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| 42 | * License as published by the Free Software Foundation; either
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| 43 | * version 2 of the License, or (at your option) any later version.
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| 44 | *
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| 45 | * This library is distributed in the hope that it will be useful,
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| 46 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 47 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 48 | * Lesser General Public License for more details.
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| 49 | *
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| 50 | * You should have received a copy of the GNU Lesser General Public
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| 51 | * License along with this library; if not, write to the Free Software
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| 52 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| 53 | *
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| 54 | */
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| 55 |
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[69501] | 56 | /*
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| 57 | * Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
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| 58 | * other than GPL or LGPL is available it will apply instead, Oracle elects to use only
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| 59 | * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
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| 60 | * a choice of LGPL license versions is made available with the language indicating
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| 61 | * that LGPLv2 or any later version may be used, or where a choice of which version
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| 62 | * of the LGPL is applied is otherwise unspecified.
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| 63 | */
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[38699] | 64 |
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[76565] | 65 | #ifndef VBOX_INCLUDED_SRC_PC_BIOS_biosint_h
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| 66 | #define VBOX_INCLUDED_SRC_PC_BIOS_biosint_h
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[76520] | 67 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 68 | # pragma once
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| 69 | #endif
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[69501] | 70 |
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[39340] | 71 | /* Compile-time assertion macro. */
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| 72 | #define ct_assert(a) extern int ct_ass_arr[!!(a) == 1];
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| 73 |
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[38699] | 74 | /* For functions called from assembly code. */
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[42202] | 75 | #define BIOSCALL __cdecl
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[38699] | 76 |
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| 77 | #define BX_ELTORITO_BOOT 1
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| 78 | #define BX_PCIBIOS 1
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| 79 | #define BX_USE_PS2_MOUSE 1
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[39366] | 80 | #define BX_APM 1
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[38699] | 81 |
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[60422] | 82 | #ifndef DEBUG_ATA
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| 83 | # define DEBUG_ATA 0
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| 84 | #endif
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| 85 | #ifdef DEBUG_AHCI
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| 86 | # define DEBUG_AHCI 0
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| 87 | #endif
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| 88 | #ifndef DEBUG_SCSI
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| 89 | # define DEBUG_SCSI 0
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| 90 | #endif
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| 91 | #ifndef DEBUG_CD_BOOT
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| 92 | # define DEBUG_CD_BOOT 0
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| 93 | #endif
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| 94 | #ifndef DEBUG_ELTORITO
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| 95 | # define DEBUG_ELTORITO 0
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| 96 | #endif
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| 97 | #ifndef DEBUG_INT13_HD
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| 98 | # define DEBUG_INT13_HD 0
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| 99 | #endif
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| 100 | #ifndef DEBUG_INT13_FL
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| 101 | # define DEBUG_INT13_FL 0
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| 102 | #endif
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| 103 | #ifndef DEBUG_INT13_CD
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| 104 | # define DEBUG_INT13_CD 0
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| 105 | #endif
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| 106 | #ifndef DEBUG_INT15
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| 107 | # define DEBUG_INT15 0
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| 108 | #endif
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| 109 | #ifndef DEBUG_INT15_MS
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| 110 | # define DEBUG_INT15_MS 0
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| 111 | #endif
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| 112 | #ifndef DEBUG_INT16
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| 113 | # define DEBUG_INT16 0
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| 114 | #endif
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| 115 | #ifndef DEBUG_INT1A
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| 116 | # define DEBUG_INT1A 0
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| 117 | #endif
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| 118 | #ifndef DEBUG_INT74
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| 119 | # define DEBUG_INT74 0
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| 120 | #endif
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| 121 | #ifndef DEBUG_PCI
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| 122 | # define DEBUG_PCI 0
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| 123 | #endif
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| 124 | #ifndef DEBUG_APM
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| 125 | # define DEBUG_APM 0
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| 126 | #endif
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| 127 | #ifndef DEBUG_POST
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| 128 | # define DEBUG_POST 0
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| 129 | #endif
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[38699] | 130 |
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| 131 | #define FP_OFF(p) ((unsigned)(p))
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| 132 | #define FP_SEG(p) ((unsigned)((unsigned long)(void __far*)(p) >> 16))
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| 133 | #define MK_FP(s,o) (((unsigned short)(s)):>((void __near *)(o)))
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| 134 |
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| 135 | typedef struct {
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| 136 | union {
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| 137 | struct {
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| 138 | uint16_t di, si, bp, sp;
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| 139 | uint16_t bx, dx, cx, ax;
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| 140 | } r16;
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| 141 | struct {
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| 142 | uint16_t filler[4];
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| 143 | uint8_t bl, bh, dl, dh, cl, ch, al, ah;
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| 144 | } r8;
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| 145 | } u;
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| 146 | } pusha_regs_t;
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| 147 |
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| 148 | typedef struct {
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| 149 | union {
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| 150 | struct {
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| 151 | uint32_t edi, esi, ebp, esp;
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| 152 | uint32_t ebx, edx, ecx, eax;
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| 153 | } r32;
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| 154 | struct {
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| 155 | uint16_t di, filler1, si, filler2, bp, filler3, sp, filler4;
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| 156 | uint16_t bx, filler5, dx, filler6, cx, filler7, ax, filler8;
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| 157 | } r16;
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| 158 | struct {
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| 159 | uint32_t filler[4];
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| 160 | uint8_t bl, bh;
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| 161 | uint16_t filler1;
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| 162 | uint8_t dl, dh;
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| 163 | uint16_t filler2;
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| 164 | uint8_t cl, ch;
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| 165 | uint16_t filler3;
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| 166 | uint8_t al, ah;
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| 167 | uint16_t filler4;
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| 168 | } r8;
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| 169 | } u;
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| 170 | } pushad_regs_t;
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| 171 |
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| 172 | typedef struct {
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| 173 | union {
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| 174 | struct {
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| 175 | uint16_t flags;
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| 176 | } r16;
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| 177 | struct {
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[40721] | 178 | uint8_t flagsl;
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| 179 | uint8_t flagsh;
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[38699] | 180 | } r8;
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| 181 | } u;
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| 182 | } flags_t;
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| 183 |
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| 184 | typedef struct {
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| 185 | uint16_t ip;
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| 186 | uint16_t cs;
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| 187 | flags_t flags;
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| 188 | } iret_addr_t;
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| 189 |
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| 190 | typedef struct {
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| 191 | uint16_t ds;
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| 192 | uint16_t es;
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| 193 | pusha_regs_t gr;
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| 194 | iret_addr_t ra;
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| 195 | } disk_regs_t;
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| 196 |
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| 197 | typedef struct {
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| 198 | pusha_regs_t gr;
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[40721] | 199 | uint16_t es;
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| 200 | uint16_t ds;
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[67785] | 201 | uint16_t ifl;
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[40721] | 202 | iret_addr_t ra;
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[38699] | 203 | } kbd_regs_t;
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| 204 |
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| 205 | typedef struct {
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| 206 | pusha_regs_t gr;
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| 207 | uint16_t es;
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| 208 | uint16_t ds;
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| 209 | flags_t fl;
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| 210 | } sys_regs_t;
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| 211 |
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| 212 | typedef struct {
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| 213 | pushad_regs_t gr;
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| 214 | uint16_t es;
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| 215 | uint16_t ds;
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| 216 | flags_t fl;
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| 217 | } sys32_regs_t;
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| 218 |
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| 219 | typedef struct {
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| 220 | pusha_regs_t gr;
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| 221 | iret_addr_t ra;
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| 222 | } i1apci_regs_t;
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| 223 |
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| 224 |
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| 225 | #define SetCF(x) x.u.r8.flagsl |= 0x01
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| 226 | #define SetZF(x) x.u.r8.flagsl |= 0x40
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| 227 | #define ClearCF(x) x.u.r8.flagsl &= 0xfe
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| 228 | #define ClearZF(x) x.u.r8.flagsl &= 0xbf
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| 229 | #define GetCF(x) (x.u.r8.flagsl & 0x01)
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| 230 |
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| 231 | #define SET_AL(val8) AX = ((AX & 0xff00) | (val8))
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| 232 | #define SET_BL(val8) BX = ((BX & 0xff00) | (val8))
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| 233 | #define SET_CL(val8) CX = ((CX & 0xff00) | (val8))
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| 234 | #define SET_DL(val8) DX = ((DX & 0xff00) | (val8))
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| 235 | #define SET_AH(val8) AX = ((AX & 0x00ff) | ((val8) << 8))
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| 236 | #define SET_BH(val8) BX = ((BX & 0x00ff) | ((val8) << 8))
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| 237 | #define SET_CH(val8) CX = ((CX & 0x00ff) | ((val8) << 8))
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| 238 | #define SET_DH(val8) DX = ((DX & 0x00ff) | ((val8) << 8))
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| 239 |
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| 240 | #define GET_AL() ( AX & 0x00ff )
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| 241 | #define GET_BL() ( BX & 0x00ff )
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| 242 | #define GET_CL() ( CX & 0x00ff )
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| 243 | #define GET_DL() ( DX & 0x00ff )
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| 244 | #define GET_AH() ( AX >> 8 )
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| 245 | #define GET_BH() ( BX >> 8 )
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| 246 | #define GET_CH() ( CX >> 8 )
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| 247 | #define GET_DH() ( DX >> 8 )
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| 248 |
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| 249 | #define GET_ELDL() ( ELDX & 0x00ff )
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| 250 | #define GET_ELDH() ( ELDX >> 8 )
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| 251 |
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| 252 | #define SET_CF() FLAGS |= 0x0001
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| 253 | #define CLEAR_CF() FLAGS &= 0xfffe
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| 254 | #define GET_CF() (FLAGS & 0x0001)
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| 255 |
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| 256 | #define SET_ZF() FLAGS |= 0x0040
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| 257 | #define CLEAR_ZF() FLAGS &= 0xffbf
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| 258 | #define GET_ZF() (FLAGS & 0x0040)
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| 259 |
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[40721] | 260 | #define SET_IF() FLAGS |= 0x0200
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| 261 |
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[38699] | 262 | typedef unsigned short bx_bool;
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| 263 |
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| 264 | #define BX_VIRTUAL_PORTS 1 /* normal output to Bochs ports */
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| 265 | #define BX_DEBUG_SERIAL 0 /* output to COM1 */
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| 266 |
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| 267 | #define BIOS_PRINTF_HALT 1
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| 268 | #define BIOS_PRINTF_SCREEN 2
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| 269 | #define BIOS_PRINTF_INFO 4
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| 270 | #define BIOS_PRINTF_DEBUG 8
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| 271 | #define BIOS_PRINTF_ALL (BIOS_PRINTF_SCREEN | BIOS_PRINTF_INFO)
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| 272 | #define BIOS_PRINTF_DEBHALT (BIOS_PRINTF_SCREEN | BIOS_PRINTF_INFO | BIOS_PRINTF_HALT)
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| 273 |
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| 274 | extern const char bios_prefix_string[];
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| 275 | extern void bios_printf(uint16_t action, const char *s, ...);
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| 276 | extern void put_str(uint16_t action, const char __far *s);
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| 277 | extern void put_str_near(uint16_t action, const char __near *s);
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| 278 | extern uint8_t inb_cmos(uint8_t cmos_reg);
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| 279 | extern void outb_cmos(uint8_t cmos_reg, uint8_t val);
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[92290] | 280 | extern uint16_t get_cmos_word(uint8_t idxFirst);
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[38699] | 281 | extern uint16_t cdrom_boot(void);
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| 282 | extern void show_logo(void);
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| 283 | extern void delay_boot(uint16_t secs);
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[38833] | 284 | extern bx_bool set_enable_a20(bx_bool val);
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[38699] | 285 |
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| 286 | #define printf(...) bios_printf(BIOS_PRINTF_SCREEN, __VA_ARGS__)
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| 287 |
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| 288 | // Defines the output macros.
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| 289 | // BX_DEBUG goes to INFO port until we can easily choose debug info on a
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| 290 | // per-device basis. Debug info are sent only in debug mode
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| 291 | #define DEBUG_ROMBIOS 1
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| 292 | #if DEBUG_ROMBIOS
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| 293 | # define BX_DEBUG(...) bios_printf(BIOS_PRINTF_INFO, __VA_ARGS__)
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| 294 | #else
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| 295 | # define BX_DEBUG(...)
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| 296 | #endif
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| 297 | #ifdef VBOX
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| 298 | #define BX_INFO(...) do { put_str(BIOS_PRINTF_INFO, bios_prefix_string); bios_printf(BIOS_PRINTF_INFO, __VA_ARGS__); } while (0)
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[84752] | 299 | #define BX_INFO_CON(...)do { put_str(BIOS_PRINTF_INFO, bios_prefix_string); bios_printf(BIOS_PRINTF_ALL, __VA_ARGS__); } while (0)
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[38699] | 300 | #else /* !VBOX */
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| 301 | #define BX_INFO(...) bios_printf(BIOS_PRINTF_INFO, __VA_ARGS__)
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| 302 | #endif /* !VBOX */
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| 303 | #define BX_PANIC(...) bios_printf(BIOS_PRINTF_DEBHALT, __VA_ARGS__)
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| 304 |
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[78052] | 305 | uint16_t pci16_find_device(uint32_t search_item, uint16_t index, int search_class, int ignore_if);
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| 306 |
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[48123] | 307 | /* Because we don't tell the recompiler when guest physical memory
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[38997] | 308 | * is written, it can incorrectly cache guest code overwritten by
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| 309 | * DMA (bus master or not). We just re-write the memory block to flush
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| 310 | * any of its caches. This is not exactly efficient, but works!
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| 311 | */
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| 312 | #define DMA_WORKAROUND 1
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| 313 |
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[38699] | 314 | /* Random hardware-related definitions. */
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| 315 |
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| 316 | #define PIC_MASTER 0x20
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| 317 | #define PIC_MASTER_MASK 0x21
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| 318 | #define PIC_SLAVE 0xA0
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| 319 | #define PIC_SLAVE_MASK 0xA1
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| 320 | #define PIC_CMD_EOI 0x20
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| 321 | #define PIC_CMD_RD_ISR 0x0B
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| 322 | #define PIC_CMD_INIT 0x11
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[76519] | 323 |
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[76565] | 324 | #endif /* !VBOX_INCLUDED_SRC_PC_BIOS_biosint_h */
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[76519] | 325 |
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