mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-10-20 21:41:29 +08:00
5c16389ef9
Add support for Print Screen key and interrupt. The key press allows Descent and 2 in-game screenshot feature to be used. Also, according to the original SVN commit text, "The keypress and interrupt allow the Horror hotel (TSR text adventure) hotkey to work, and the compatible interrupt handler location fixes a game bug in The Forgotten Land."
391 lines
14 KiB
C++
391 lines
14 KiB
C++
/*
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* Copyright (C) 2002-2019 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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA.
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*/
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#include <stdio.h>
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#include <stddef.h>
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#include <stdint.h>
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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
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#define BIOS_BASE_ADDRESS_COM2 0x402
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#define BIOS_BASE_ADDRESS_COM3 0x404
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#define BIOS_BASE_ADDRESS_COM4 0x406
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#define BIOS_ADDRESS_LPT1 0x408
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#define BIOS_ADDRESS_LPT2 0x40a
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#define BIOS_ADDRESS_LPT3 0x40c
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/* 0x40e is reserved */
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#define BIOS_CONFIGURATION 0x410
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/* 0x412 is reserved */
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#define BIOS_MEMORY_SIZE 0x413
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#define BIOS_TRUE_MEMORY_SIZE 0x415
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/* #define bios_expansion_memory_size (*(unsigned int *) 0x415) */
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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
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/* used for keyboard input with Alt-Number */
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#define BIOS_KEYBOARD_BUFFER_HEAD 0x41a
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#define BIOS_KEYBOARD_BUFFER_TAIL 0x41c
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#define BIOS_KEYBOARD_BUFFER 0x41e
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/* #define bios_keyboard_buffer (*(unsigned int *) 0x41e) */
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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_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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//#define BIOS_DEFAULT_IRQ0_LOCATION (RealMake(0xf000,0xfea5))
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//#define BIOS_DEFAULT_IRQ1_LOCATION (RealMake(0xf000,0xe987))
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//#define BIOS_DEFAULT_IRQ2_LOCATION (RealMake(0xf000,0xff55))
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//#define BIOS_DEFAULT_HANDLER_LOCATION (RealMake(0xf000,0xff53))
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//#define BIOS_VIDEO_TABLE_LOCATION (RealMake(0xf000,0xf0a4))
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//#define BIOS_DEFAULT_RESET_LOCATION (RealMake(0xf000,0xe05b))
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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 0x58
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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(Bit16u code);
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void INT10_ReloadRomFonts();
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void BIOS_SetLPTPort (Bitu port, Bit16u baseaddr);
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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;
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unsigned char logical_device;
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unsigned char ident[9]; /* 72-bit vendor + serial + checksum identity */
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unsigned char ident_bp; /* bit position of identity read */
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unsigned char ident_2nd;
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unsigned char resource_ident;
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unsigned char* resource_data;
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size_t resource_data_len;
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unsigned int resource_data_pos;
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size_t alloc_write;
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unsigned char* alloc_res;
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size_t alloc_sz;
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};
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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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