| // Definitions for X86 IO port access. |
| // |
| // Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net> |
| // |
| // This file may be distributed under the terms of the GNU GPLv3 license. |
| #ifndef __IOPORT_H |
| #define __IOPORT_H |
| |
| #include "types.h" // u8 |
| |
| #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_DMA2_MASK_REG 0x00d4 |
| #define PORT_DMA2_MODE_REG 0x00d6 |
| #define PORT_DMA2_MASTER_CLEAR 0x00da |
| #define PORT_MATH_CLEAR 0x00f0 |
| #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_PCI_CMD 0x0cf8 |
| #define PORT_PCI_DATA 0x0cfc |
| #define PORT_BIOS_DEBUG 0x0402 |
| #define PORT_QEMU_CFG_CTL 0x0510 |
| #define PORT_QEMU_CFG_DATA 0x0511 |
| #define PORT_BIOS_APM 0x8900 |
| |
| // PORT_KBD_CTRLB bitdefs |
| #define KBD_REFRESH (1<<4) |
| |
| |
| static inline void outb(u8 value, u16 port) { |
| __asm__ __volatile__("outb %b0, %w1" : : "a"(value), "Nd"(port)); |
| } |
| static inline void outw(u16 value, u16 port) { |
| __asm__ __volatile__("outw %w0, %w1" : : "a"(value), "Nd"(port)); |
| } |
| static inline void outl(u32 value, u16 port) { |
| __asm__ __volatile__("outl %0, %w1" : : "a"(value), "Nd"(port)); |
| } |
| static inline u8 inb(u16 port) { |
| u8 value; |
| __asm__ __volatile__("inb %w1, %b0" : "=a"(value) : "Nd"(port)); |
| return value; |
| } |
| static inline u16 inw(u16 port) { |
| u16 value; |
| __asm__ __volatile__("inw %w1, %w0" : "=a"(value) : "Nd"(port)); |
| return value; |
| } |
| static inline u32 inl(u16 port) { |
| u32 value; |
| __asm__ __volatile__("inl %w1, %0" : "=a"(value) : "Nd"(port)); |
| return value; |
| } |
| |
| static inline void insb(u16 port, u8 *data, u32 count) { |
| asm volatile("rep insb (%%dx), %%es:(%%di)" |
| : "+c"(count), "+D"(data) : "d"(port) : "memory"); |
| } |
| static inline void insw(u16 port, u16 *data, u32 count) { |
| asm volatile("rep insw (%%dx), %%es:(%%di)" |
| : "+c"(count), "+D"(data) : "d"(port) : "memory"); |
| } |
| static inline void insl(u16 port, u32 *data, u32 count) { |
| asm volatile("rep insl (%%dx), %%es:(%%di)" |
| : "+c"(count), "+D"(data) : "d"(port) : "memory"); |
| } |
| // XXX - outs not limited to es segment |
| static inline void outsb(u16 port, u8 *data, u32 count) { |
| asm volatile("rep outsb %%es:(%%si), (%%dx)" |
| : "+c"(count), "+S"(data) : "d"(port) : "memory"); |
| } |
| static inline void outsw(u16 port, u16 *data, u32 count) { |
| asm volatile("rep outsw %%es:(%%si), (%%dx)" |
| : "+c"(count), "+S"(data) : "d"(port) : "memory"); |
| } |
| static inline void outsl(u16 port, u32 *data, u32 count) { |
| asm volatile("rep outsl %%es:(%%si), (%%dx)" |
| : "+c"(count), "+S"(data) : "d"(port) : "memory"); |
| } |
| |
| #endif // ioport.h |