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ioport.h
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ioport.h
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// Definitions for X86 IO port access.
//
// Copyright (C) 2008 Kevin O'Connor <[email protected]>
//
// This file may be distributed under the terms of the GNU LGPLv3 license.
//
// This file copied (somewhat) intact from SeaBIOS.
#ifndef IOPORT_H
#define IOPORT_H
#define PORT_DMA_ADDR_2 0x0004
#define PORT_DMA_CNT_2 0x0005
#define PORT_DMA1_MASK_REG 0x000a
#define PORT_DMA1_MODE_REG 0x000b
#define PORT_DMA1_CLEAR_FF_REG 0x000c
#define PORT_DMA1_MASTER_CLEAR 0x000d
#define PORT_PIC1_CMD 0x0020
#define PORT_PIC1_DATA 0x0021
#define PORT_PIT_COUNTER0 0x0040
#define PORT_PIT_COUNTER1 0x0041
#define PORT_PIT_COUNTER2 0x0042
#define PORT_PIT_MODE 0x0043
#define PORT_PS2_DATA 0x0060
#define PORT_PS2_CTRLB 0x0061
#define PORT_PS2_STATUS 0x0064
#define PORT_CMOS_INDEX 0x0070
#define PORT_CMOS_DATA 0x0071
#define PORT_DIAG 0x0080
#define PORT_DMA_PAGE_2 0x0081
#define PORT_A20 0x0092
#define PORT_PIC2_CMD 0x00a0
#define PORT_PIC2_DATA 0x00a1
#define PORT_SMI_CMD 0x00b2
#define PORT_SMI_STATUS 0x00b3
#define PORT_DMA2_MASK_REG 0x00d4
#define PORT_DMA2_MODE_REG 0x00d6
#define PORT_DMA2_MASTER_CLEAR 0x00da
#define PORT_MATH_CLEAR 0x00f0
#define PORT_ATA2_CMD_BASE 0x0170
#define PORT_ATA1_CMD_BASE 0x01f0
#define PORT_LPT2 0x0278
#define PORT_SERIAL4 0x02e8
#define PORT_SERIAL2 0x02f8
#define PORT_ATA2_CTRL_BASE 0x0374
#define PORT_LPT1 0x0378
#define PORT_SERIAL3 0x03e8
#define PORT_ATA1_CTRL_BASE 0x03f4
#define PORT_FD_BASE 0x03f0
#define PORT_FD_DOR 0x03f2
#define PORT_FD_STATUS 0x03f4
#define PORT_FD_DATA 0x03f5
#define PORT_HD_DATA 0x03f6
#define PORT_FD_DIR 0x03f7
#define PORT_SERIAL1 0x03f8
#define PORT_PIC1_ELCR 0x04d0
#define PORT_PIC2_ELCR 0x04d1
#define PORT_PCI_CMD 0x0cf8
#define PORT_PCI_REBOOT 0x0cf9
#define PORT_PCI_DATA 0x0cfc
#define PORT_BIOS_DEBUG 0x0402
#define PORT_QEMU_CFG_CTL 0x0510
#define PORT_QEMU_CFG_DATA 0x0511
#define PORT_ACPI_PM_BASE 0xb000
#define PORT_SMB_BASE 0xb100
#define PORT_BIOS_APM 0x8900
// Serial port offsets
#define SEROFF_DATA 0
#define SEROFF_DLL 0
#define SEROFF_IER 1
#define SEROFF_DLH 1
#define SEROFF_IIR 2
#define SEROFF_LCR 3
#define SEROFF_LSR 5
#define SEROFF_MSR 6
// PORT_A20 bitdefs
#define A20_ENABLE_BIT 0x02
// PORT_CMOS_INDEX nmi disable bit
#define NMI_DISABLE_BIT 0x80
#endif // ioport.h