112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
// Definitions for X86 IO port access.
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//
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// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
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//
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// This file may be distributed under the terms of the GNU LGPLv3 license.
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#ifndef __IOPORT_H
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#define __IOPORT_H
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#define PORT_DMA_ADDR_2 0x0004
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#define PORT_DMA_CNT_2 0x0005
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#define PORT_DMA1_MASK_REG 0x000a
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#define PORT_DMA1_MODE_REG 0x000b
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#define PORT_DMA1_CLEAR_FF_REG 0x000c
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#define PORT_DMA1_MASTER_CLEAR 0x000d
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#define PORT_PIC1_CMD 0x0020
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#define PORT_PIC1_DATA 0x0021
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#define PORT_PIT_COUNTER0 0x0040
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#define PORT_PIT_COUNTER1 0x0041
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#define PORT_PIT_COUNTER2 0x0042
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#define PORT_PIT_MODE 0x0043
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#define PORT_PS2_DATA 0x0060
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#define PORT_PS2_CTRLB 0x0061
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#define PORT_PS2_STATUS 0x0064
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#define PORT_CMOS_INDEX 0x0070
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#define PORT_CMOS_DATA 0x0071
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#define PORT_DIAG 0x0080
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#define PORT_DMA_PAGE_2 0x0081
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#define PORT_A20 0x0092
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#define PORT_PIC2_CMD 0x00a0
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#define PORT_PIC2_DATA 0x00a1
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#define PORT_SMI_CMD 0x00b2
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#define PORT_SMI_STATUS 0x00b3
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#define PORT_DMA2_MASK_REG 0x00d4
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#define PORT_DMA2_MODE_REG 0x00d6
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#define PORT_DMA2_MASTER_CLEAR 0x00da
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#define PORT_MATH_CLEAR 0x00f0
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#define PORT_FD_DOR 0x03f2
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#define PORT_FD_STATUS 0x03f4
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#define PORT_FD_DATA 0x03f5
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#define PORT_HD_DATA 0x03f6
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#define PORT_FD_DIR 0x03f7
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#define PORT_PCI_CMD 0x0cf8
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#define PORT_PCI_DATA 0x0cfc
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#define PORT_BIOS_DEBUG 0x0402
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#define PORT_QEMU_CFG_CTL 0x0510
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#define PORT_QEMU_CFG_DATA 0x0511
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#define PORT_ACPI_PM_BASE 0xb000
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#define PORT_SMB_BASE 0xb100
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#define PORT_BIOS_APM 0x8900
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// PORT_A20 bitdefs
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#define A20_ENABLE_BIT 0x02
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#ifndef __ASSEMBLY__
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#include "types.h" // u8
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static inline void outb(u8 value, u16 port) {
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__asm__ __volatile__("outb %b0, %w1" : : "a"(value), "Nd"(port));
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}
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static inline void outw(u16 value, u16 port) {
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__asm__ __volatile__("outw %w0, %w1" : : "a"(value), "Nd"(port));
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}
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static inline void outl(u32 value, u16 port) {
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__asm__ __volatile__("outl %0, %w1" : : "a"(value), "Nd"(port));
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}
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static inline u8 inb(u16 port) {
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u8 value;
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__asm__ __volatile__("inb %w1, %b0" : "=a"(value) : "Nd"(port));
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return value;
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}
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static inline u16 inw(u16 port) {
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u16 value;
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__asm__ __volatile__("inw %w1, %w0" : "=a"(value) : "Nd"(port));
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return value;
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}
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static inline u32 inl(u16 port) {
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u32 value;
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__asm__ __volatile__("inl %w1, %0" : "=a"(value) : "Nd"(port));
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return value;
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}
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static inline void insb(u16 port, u8 *data, u32 count) {
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asm volatile("rep insb (%%dx), %%es:(%%di)"
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: "+c"(count), "+D"(data) : "d"(port) : "memory");
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}
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static inline void insw(u16 port, u16 *data, u32 count) {
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asm volatile("rep insw (%%dx), %%es:(%%di)"
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: "+c"(count), "+D"(data) : "d"(port) : "memory");
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}
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static inline void insl(u16 port, u32 *data, u32 count) {
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asm volatile("rep insl (%%dx), %%es:(%%di)"
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: "+c"(count), "+D"(data) : "d"(port) : "memory");
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}
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// XXX - outs not limited to es segment
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static inline void outsb(u16 port, u8 *data, u32 count) {
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asm volatile("rep outsb %%es:(%%si), (%%dx)"
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: "+c"(count), "+S"(data) : "d"(port) : "memory");
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}
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static inline void outsw(u16 port, u16 *data, u32 count) {
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asm volatile("rep outsw %%es:(%%si), (%%dx)"
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: "+c"(count), "+S"(data) : "d"(port) : "memory");
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}
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static inline void outsl(u16 port, u32 *data, u32 count) {
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asm volatile("rep outsl %%es:(%%si), (%%dx)"
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: "+c"(count), "+S"(data) : "d"(port) : "memory");
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}
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#endif // !__ASSEMBLY__
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#endif // ioport.h
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