46 lines
915 B
C
46 lines
915 B
C
#pragma once
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#include <lib/stdint.h>
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inline void outb(uint16_t port, uint8_t b) {
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asm("outb %0, %1" : : "a"(b), "Nd"(port));
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}
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inline uint8_t inb(uint16_t port) {
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uint8_t ret;
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asm ( "inb %1, %0"
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: "=a"(ret) // Output
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: "Nd"(port)); // Input
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return ret;
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}
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static inline uint16_t inw(uint16_t port) {
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uint16_t ret;
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asm ( "inw %1, %0"
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: "=a"(ret)
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: "Nd"(port) );
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return ret;
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}
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static inline void outw(uint16_t port, uint16_t val) {
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asm ( "outw %0, %1" : : "a"(val), "Nd"(port) );
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}
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static inline uint32_t inl(uint16_t port) {
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uint32_t ret;
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asm ( "inl %1, %0"
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: "=a"(ret)
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: "Nd"(port) );
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return ret;
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}
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static inline void outl(uint16_t port, uint32_t val) {
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asm ( "outl %0, %1" : : "a"(val), "Nd"(port) );
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}
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static inline void io_wait() {
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asm ( "jmp 1f\n\t"
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"1:jmp 2f\n\t"
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"2:" );
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}
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