mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-05-09 03:41:10 +08:00
406 lines
20 KiB
C++
406 lines
20 KiB
C++
/*
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* Copyright (C) 2002-2021 The DOSBox Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "regionalloctracking.h"
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#ifndef DOSBOX_BIOS_H
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#define DOSBOX_BIOS_H
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#define BIOS_BASE_ADDRESS_COM1 0x400 /* uint16_t */
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#define BIOS_BASE_ADDRESS_COM2 0x402 /* uint16_t */
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#define BIOS_BASE_ADDRESS_COM3 0x404 /* uint16_t */
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#define BIOS_BASE_ADDRESS_COM4 0x406 /* uint16_t */
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#define BIOS_ADDRESS_LPT1 0x408 /* uint16_t */
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#define BIOS_ADDRESS_LPT2 0x40a /* uint16_t */
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#define BIOS_ADDRESS_LPT3 0x40c /* uint16_t */
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/* 0x40e is reserved */
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#define BIOS_CONFIGURATION 0x410 /* uint16_t */
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/* 0x412 is reserved */
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#define BIOS_MEMORY_SIZE 0x413 /* uint16_t */
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#define BIOS_TRUE_MEMORY_SIZE 0x415 /* uint16_t */
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#define BIOS_KEYBOARD_STATE 0x417
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#define BIOS_KEYBOARD_FLAGS1 BIOS_KEYBOARD_STATE
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#define BIOS_KEYBOARD_FLAGS1_RSHIFT_PRESSED (1 << 0)
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#define BIOS_KEYBOARD_FLAGS1_LSHIFT_PRESSED (1 << 1)
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#define BIOS_KEYBOARD_FLAGS1_CTRL_PRESSED (1 << 2)
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#define BIOS_KEYBOARD_FLAGS1_ALT_PRESSED (1 << 3)
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#define BIOS_KEYBOARD_FLAGS1_SCROLL_LOCK_ACTIVE (1 << 4)
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#define BIOS_KEYBOARD_FLAGS1_NUMLOCK_ACTIVE (1 << 5)
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#define BIOS_KEYBOARD_FLAGS1_CAPS_LOCK_ACTIVE (1 << 6)
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#define BIOS_KEYBOARD_FLAGS1_INSERT_ACTIVE (1 << 7)
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#define BIOS_KEYBOARD_FLAGS2 0x418
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#define BIOS_KEYBOARD_FLAGS2_LCTRL_PRESSED (1 << 0)
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#define BIOS_KEYBOARD_FLAGS2_LALT_PRESSED (1 << 1)
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#define BIOS_KEYBOARD_FLAGS2_SYSTEMKEY_HELD (1 << 2)
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#define BIOS_KEYBOARD_FLAGS2_SUSPENDKEY_TOGGLED (1 << 3)
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#define BIOS_KEYBOARD_FLAGS2_SCROLL_LOCK_PRESSED (1 << 4)
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#define BIOS_KEYBOARD_FLAGS2_NUM_LOCK_PRESSED (1 << 5)
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#define BIOS_KEYBOARD_FLAGS2_CAPS_LOCK_PRESSED (1 << 6)
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#define BIOS_KEYBOARD_FLAGS2_INSERT_PRESSED (1 << 7)
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#define BIOS_KEYBOARD_TOKEN 0x419 /* used for keyboard input with Alt-Number */
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#define BIOS_KEYBOARD_BUFFER_HEAD 0x41a /* uint16_t */
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#define BIOS_KEYBOARD_BUFFER_TAIL 0x41c /* uint16_t */
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#define BIOS_KEYBOARD_BUFFER 0x41e /* uint16_t[] */
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#define BIOS_DRIVE_ACTIVE 0x43e
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#define BIOS_DRIVE_RUNNING 0x43f
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#define BIOS_DISK_MOTOR_TIMEOUT 0x440
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#define BIOS_DISK_STATUS 0x441
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/* #define bios_fdc_result_buffer (*(unsigned short *) 0x442) */
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#define BIOS_VIDEO_MODE 0x449
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#define BIOS_SCREEN_COLUMNS 0x44a
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#define BIOS_VIDEO_MEMORY_USED 0x44c
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#define BIOS_VIDEO_MEMORY_ADDRESS 0x44e
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#define BIOS_VIDEO_CURSOR_POS 0x450
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#define BIOS_CURSOR_SHAPE 0x460
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#define BIOS_CURSOR_LAST_LINE 0x460
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#define BIOS_CURSOR_FIRST_LINE 0x461
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#define BIOS_CURRENT_SCREEN_PAGE 0x462
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#define BIOS_VIDEO_PORT 0x463
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#define BIOS_VDU_CONTROL 0x465
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#define BIOS_VDU_COLOR_REGISTER 0x466
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/* 0x467-0x468 is reserved */
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#define BIOS_LAST_UNEXPECTED_IRQ 0x46b
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#define BIOS_TIMER 0x46c
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#define BIOS_24_HOURS_FLAG 0x470
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#define BIOS_CTRL_BREAK_FLAG 0x471
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#define BIOS_CTRL_ALT_DEL_FLAG 0x472
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#define BIOS_HARDDISK_COUNT 0x475
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/* 0x474, 0x476, 0x477 is reserved */
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#define BIOS_LPT1_TIMEOUT 0x478
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#define BIOS_LPT2_TIMEOUT 0x479
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#define BIOS_LPT3_TIMEOUT 0x47a
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/* 0x47b is reserved */
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#define BIOS_COM1_TIMEOUT 0x47c
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#define BIOS_COM2_TIMEOUT 0x47d
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#define BIOS_COM3_TIMEOUT 0x47e
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#define BIOS_COM4_TIMEOUT 0x47f
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/* 0x47e is reserved */ //<- why that?
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/* 0x47f-0x4ff is unknow for me */
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#define BIOS_KEYBOARD_BUFFER_START 0x480
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#define BIOS_KEYBOARD_BUFFER_END 0x482
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#define BIOS_ROWS_ON_SCREEN_MINUS_1 0x484
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#define BIOS_FONT_HEIGHT 0x485
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#define BIOS_VIDEO_INFO_0 0x487
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#define BIOS_VIDEO_INFO_1 0x488
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#define BIOS_VIDEO_INFO_2 0x489
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#define BIOS_VIDEO_COMBO 0x48a
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#define BIOS_KEYBOARD_PCJR_FLAG2 0x488 /* KB_FLAG_2 */
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#define BIOS_KEYBOARD_PCJR_FLAG2_PUTCHAR (1 << 0)
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#define BIOS_KEYBOARD_PCJR_FLAG2_INIT_DELAY (1 << 1)
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#define BIOS_KEYBOARD_PCJR_FLAG2_HALF_RATE (1 << 2)
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#define BIOS_KEYBOARD_PCJR_FLAG2_TYPE_OFF (1 << 3)
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#define BIOS_KEYBOARD_PCJR_FLAG2_FN_LOCK (1 << 4)
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#define BIOS_KEYBOARD_PCJR_FLAG2_FN_PENDING (1 << 5)
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#define BIOS_KEYBOARD_PCJR_FLAG2_FN_BREAK (1 << 6)
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#define BIOS_KEYBOARD_PCJR_FLAG2_FN_FLAG (1 << 7)
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#define BIOS_KEYBOARD_FLAGS3 0x496
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#define BIOS_KEYBOARD_FLAGS3_HIDDEN_E1 (1 << 0)
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#define BIOS_KEYBOARD_FLAGS3_HIDDEN_E0 (1 << 1)
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#define BIOS_KEYBOARD_FLAGS3_RCTRL_PRESSED (1 << 2)
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#define BIOS_KEYBOARD_FLAGS3_RALT_PRESSED (1 << 3)
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#define BIOS_KEYBOARD_FLAGS3_ENHANCED_KEYBOARD (1 << 4)
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#define BIOS_KEYBOARD_FLAGS3_NUM_LOCK_FORCED (1 << 5)
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#define BIOS_KEYBOARD_FLAGS3_ID_CHAR_WAS_LAST (1 << 6)
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#define BIOS_KEYBOARD_FLAGS3_ID_READ_IN_PROCESS (1 << 7)
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#define BIOS_KEYBOARD_LEDS 0x497
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#define BIOS_KEYBOARD_LEDS_SCROLL_LOCK (1 << 0)
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#define BIOS_KEYBOARD_LEDS_NUM_LOCK (1 << 1)
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#define BIOS_KEYBOARD_LEDS_CAPS_LOCK (1 << 2)
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#define BIOS_KEYBOARD_LEDS_CIRCUS (1 << 3)
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#define BIOS_KEYBOARD_LEDS_ACK (1 << 4)
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#define BIOS_KEYBOARD_LEDS_RESEND (1 << 5)
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#define BIOS_KEYBOARD_LEDS_MODE (1 << 6)
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#define BIOS_KEYBOARD_LEDS_TRANSMIT_ERROR (1 << 7)
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#define BIOS_WAIT_FLAG_POINTER 0x498
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#define BIOS_WAIT_FLAG_COUNT 0x49c
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#define BIOS_WAIT_FLAG_ACTIVE 0x4a0
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#define BIOS_WAIT_FLAG_TEMP 0x4a1
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#define BIOS_PRINT_SCREEN_FLAG 0x500
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#define BIOS_VIDEO_SAVEPTR 0x4a8
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#define CURSOR_SCAN_LINE_NORMAL (0x6)
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#define CURSOR_SCAN_LINE_INSERT (0x4)
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#define CURSOR_SCAN_LINE_END (0x7)
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extern Bitu BIOS_DEFAULT_IRQ0_LOCATION; // RealMake(0xf000,0xfea5)
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extern Bitu BIOS_DEFAULT_IRQ1_LOCATION; // RealMake(0xf000,0xe987)
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extern Bitu BIOS_DEFAULT_IRQ2_LOCATION; // RealMake(0xf000,0xff55)
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extern Bitu BIOS_DEFAULT_HANDLER_LOCATION; // RealMake(0xf000,0xff53)
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extern Bitu BIOS_DEFAULT_INT5_LOCATION; // RealMake(0xf000,0xff54)
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extern Bitu BIOS_VIDEO_TABLE_LOCATION; // RealMake(0xf000,0xf0a4)
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extern Bitu BIOS_DEFAULT_RESET_LOCATION; // RealMake(0xf000,0xe05b)
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extern Bitu BIOS_VIDEO_TABLE_SIZE;
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Bitu ROMBIOS_GetMemory(Bitu bytes,const char *who=NULL,Bitu alignment=1,Bitu must_be_at=0);
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extern RegionAllocTracking rombios_alloc;
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/* maximum of scancodes handled by keyboard bios routines */
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#define MAX_SCAN_CODE 0x7F
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/* The Section handling Bios Disk Access */
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//#define BIOS_MAX_DISK 10
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//#define MAX_SWAPPABLE_DISKS 20
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void BIOS_ZeroExtendedSize(bool in);
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bool BIOS_AddKeyToBuffer(uint16_t code);
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void INT10_ReloadRomFonts();
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void BIOS_SetLPTPort (Bitu port, uint16_t baseaddr);
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// Is it safe to call mem_read/write as if part of the guest i.e. from the main GUI?
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// If the guest is running in protected mode, NO.
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// If the guest is not running under our own DOS kernel, NO.
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// This is required to avoid problems with helpful code in this project causing BSODs in Windows NT/2000/XP
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// because the BIOS data area addresses are invalid pages in that 32-bit environment!
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bool IsSafeToMemIOOnBehalfOfGuest();
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// \brief Synchronizes emulator num lock state with host.
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void BIOS_SynchronizeNumLock();
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// \brief Synchronizes emulator caps lock state with host.
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void BIOS_SynchronizeCapsLock();
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// \brief Synchronizes emulator scroll lock state with host.
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void BIOS_SynchronizeScrollLock();
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bool ISAPNP_RegisterSysDev(const unsigned char *raw,Bitu len,bool already=false);
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enum {
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UNHANDLED_IRQ_SIMPLE=0,
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UNHANDLED_IRQ_COOPERATIVE_2ND // PC-98 type IRQ 8-15 handling
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};
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extern int unhandled_irq_method;
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class ISAPnPDevice {
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public:
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ISAPnPDevice();
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virtual ~ISAPnPDevice();
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public:
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void checksum_ident();
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public:
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enum SmallTags {
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PlugAndPlayVersionNumber = 0x1,
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LogicalDeviceID = 0x2,
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CompatibleDeviceID = 0x3,
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IRQFormat = 0x4,
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DMAFormat = 0x5,
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StartDependentFunctions = 0x6,
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EndDependentFunctions = 0x7,
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IOPortDescriptor = 0x8,
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FixedLocationIOPortDescriptor = 0x9,
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SmallVendorDefined = 0xE,
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EndTag = 0xF
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};
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enum LargeTags {
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MemoryRangeDescriptor = 0x1,
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IdentifierStringANSI = 0x2,
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IdentifierStringUNICODE = 0x3,
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LargeVendorDefined = 0x4,
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MemoryRange32Descriptor = 0x5,
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FixedLocationMemoryRangeDescriptor = 0x6
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};
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// StartDependentFunction config
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enum DependentFunctionConfig {
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PreferredDependentConfiguration = 0x0,
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AcceptableDependentConfiguration = 0x1,
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SubOptimalDependentConfiguration = 0x2
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};
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// IRQ format, signal types (bitfield)
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enum {
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IRQFormatInfo_HighTrueEdgeSensitive = 0x1,
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IRQFormatInfo_LowTrueEdgeSensitive = 0x2,
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IRQFormatInfo_HighTrueLevelSensitive = 0x4,
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IRQFormatInfo_LowTrueLevelSensitive = 0x8
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};
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// IRQ format, helper IRQ mask generator
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static inline uint16_t irq2mask(const int IRQ) {
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if (IRQ < 0 || IRQ > 15) return 0;
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return (uint16_t)(1U << (unsigned char)IRQ);
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}
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static inline uint16_t irq2mask(const int a,const int b) {
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return irq2mask(a) | irq2mask(b);
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}
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static inline uint16_t irq2mask(const int a,const int b,const int c) {
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return irq2mask(a) | irq2mask(b) | irq2mask(c);
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}
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static inline uint16_t irq2mask(const int a,const int b,const int c,const int d) {
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return irq2mask(a) | irq2mask(b) | irq2mask(c) | irq2mask(d);
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}
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static inline uint16_t irq2mask(const int a,const int b,const int c,const int d,const int e) {
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return irq2mask(a) | irq2mask(b) | irq2mask(c) | irq2mask(d) | irq2mask(e);
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}
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// DMA format transfer type
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enum {
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DMATransferType_8bitOnly=0,
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DMATransferType_8_and_16bit=1,
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DMATransferType_16bitOnly=2
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};
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enum {
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DMASpeedSupported_Compat=0,
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DMASpeedSupported_TypeA=1,
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DMASpeedSupported_TypeB=2,
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DMASpeedSupported_TypeF=3
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};
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// DMA format
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static inline uint16_t dma2mask(const int DMA) {
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if (DMA < 0 || DMA > 7 || DMA == 4) return 0;
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return (uint16_t)(1U << (unsigned char)DMA);
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}
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static inline uint16_t dma2mask(const int a,const int b) {
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return dma2mask(a) | dma2mask(b);
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}
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static inline uint16_t dma2mask(const int a,const int b,const int c) {
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return dma2mask(a) | dma2mask(b) | dma2mask(c);
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}
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static inline uint16_t dma2mask(const int a,const int b,const int c,const int d) {
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return dma2mask(a) | dma2mask(b) | dma2mask(c) | dma2mask(d);
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}
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static inline uint16_t dma2mask(const int a,const int b,const int c,const int d,const int e) {
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return dma2mask(a) | dma2mask(b) | dma2mask(c) | dma2mask(d) | dma2mask(e);
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}
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public:
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virtual void config(Bitu val);
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virtual void wakecsn(Bitu val);
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virtual void select_logical_device(Bitu val);
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virtual void on_pnp_key();
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/* ISA PnP I/O data read/write */
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virtual uint8_t read(Bitu addr);
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virtual void write(Bitu addr,Bitu val);
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virtual bool alloc(size_t sz);
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void write_begin_SMALLTAG(const ISAPnPDevice::SmallTags stag,unsigned char len);
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void write_begin_LARGETAG(const ISAPnPDevice::LargeTags stag,unsigned int len);
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void write_nstring(const char *str,const size_t l);
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void write_byte(const unsigned char c);
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void begin_write_res();
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void end_write_res();
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void write_END();
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void write_ISAPnP_version(unsigned char major,unsigned char minor,unsigned char vendor);
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void write_Identifier_String(const char *str);
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void write_Logical_Device_ID(const char c1,const char c2,const char c3,const char c4,const char c5,const char c6,const char c7);
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void write_Compatible_Device_ID(const char c1,const char c2,const char c3,const char c4,const char c5,const char c6,const char c7);
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void write_Device_ID(const char c1,const char c2,const char c3,const char c4,const char c5,const char c6,const char c7);
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void write_Dependent_Function_Start(const ISAPnPDevice::DependentFunctionConfig cfg,const bool force=false);
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void write_IRQ_Format(const uint16_t IRQ_mask,const unsigned char IRQ_signal_type=0);
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void write_DMA_Format(const uint8_t DMA_mask,const unsigned char transfer_type_preference,const bool is_bus_master,const bool byte_mode,const bool word_mode,const unsigned char speed_supported);
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void write_IO_Port(const uint16_t min_port,const uint16_t max_port,const uint8_t count,const uint8_t alignment=1,const bool full16bitdecode=true);
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void write_End_Dependent_Functions();
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public:
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unsigned char CSN = 0;
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unsigned char logical_device = 0;
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unsigned char ident[9]; /* 72-bit vendor + serial + checksum identity */
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unsigned char ident_bp = 0; /* bit position of identity read */
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unsigned char ident_2nd = 0;
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unsigned char resource_ident = 0;
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unsigned char* resource_data = NULL;
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size_t resource_data_len = 0;
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unsigned int resource_data_pos = 0;
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size_t alloc_write = 0;
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unsigned char* alloc_res = NULL;
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size_t alloc_sz = 0;
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};
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extern bool ACPI_enabled;
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extern uint32_t ACPI_BASE;
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extern uint32_t ACPI_REGION_SIZE; // power of 2
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extern uint32_t ACPI_version;
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extern unsigned char *ACPI_buffer;
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extern size_t ACPI_buffer_size;
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extern int ACPI_IRQ;
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extern unsigned int ACPI_SMI_CMD;
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void ACPI_mem_enable(const bool enable);
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void ACPI_free();
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bool ACPI_init();
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/* abc = ASCII letters of the alphabet
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* defg = hexadecimal digits */
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#define ISAPNP_ID(a,b,c,d,e,f,g) \
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(((a)&0x1F) << 2) | \
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(((b)&0x1F) >> 3) | \
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((((b)&0x1F)&7) << 13) | \
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(((c)&0x1F) << 8) | \
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(((d)&0x1F) << 20) | \
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(((e)&0x1F) << 16) | \
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(((f)&0x1F) << 28) | \
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(((g)&0x1F) << 24)
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#define ISAPNP_TYPE(a,b,c) (a),(b),(c)
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#define ISAPNP_SMALL_TAG(t,l) (((t) << 3) | (l))
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#define ISAPNP_SYSDEV_HEADER(id,type,ctrl) \
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( (id) & 0xFF), \
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(((id) >> 8) & 0xFF), \
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(((id) >> 16) & 0xFF), \
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(((id) >> 24) & 0xFF), \
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(type), \
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( (ctrl) & 0xFF), \
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(((ctrl) >> 8) & 0xFF)
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#define ISAPNP_IO_RANGE(info,min,max,align,len) \
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ISAPNP_SMALL_TAG(8,7), \
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(info), \
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((min) & 0xFF), (((min) >> 8) & 0xFF), \
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((max) & 0xFF), (((max) >> 8) & 0xFF), \
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(align), \
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(len)
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#define ISAPNP_IRQ_SINGLE(irq,flags) \
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ISAPNP_SMALL_TAG(4,3), \
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((1 << (irq)) & 0xFF), \
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(((1 << (irq)) >> 8) & 0xFF), \
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(flags)
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#define ISAPNP_IRQ(irqmask,flags) \
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ISAPNP_SMALL_TAG(4,3), \
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((irqmask) & 0xFF), \
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(((irqmask) >> 8) & 0xFF), \
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(flags)
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#define ISAPNP_DMA_SINGLE(dma,flags) \
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ISAPNP_SMALL_TAG(5,2), \
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((1 << (dma)) & 0xFF), \
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(flags)
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#define ISAPNP_DMA(dma,flags) \
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ISAPNP_SMALL_TAG(5,2), \
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((dma) & 0xFF), \
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(flags)
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#define ISAPNP_END \
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ISAPNP_SMALL_TAG(0xF,1), 0x00
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void ISA_PNP_devreg(ISAPnPDevice *x);
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#endif
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