43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#include <amd64/io.h>
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#include <libk/std.h>
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void amd64_io_outb (uint16_t port, uint8_t v) {
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__asm__ volatile ("outb %1, %0" ::"dN"(port), "a"(v));
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}
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void amd64_io_outw (uint16_t port, uint16_t v) {
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__asm__ volatile ("outw %%ax, %%dx" ::"a"(v), "d"(port));
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}
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void amd64_io_outl (uint16_t port, uint32_t v) {
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__asm__ volatile ("outl %%eax, %%dx" ::"d"(port), "a"(v));
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}
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void amd64_io_outsw (uint16_t port, const void* addr, int cnt) {
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__asm__ volatile ("cld; rep outsw" : "+S"(addr), "+c"(cnt) : "d"(port) : "memory", "cc");
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}
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uint8_t amd64_io_inb (uint16_t port) {
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uint8_t r;
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__asm__ volatile ("inb %1, %0" : "=a"(r) : "dN"(port));
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return r;
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}
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uint16_t amd64_io_inw (uint16_t port) {
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uint16_t r;
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__asm__ volatile ("inw %%dx, %%ax" : "=a"(r) : "d"(port));
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return r;
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}
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uint32_t amd64_io_inl (uint16_t port) {
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uint32_t r;
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__asm__ volatile ("inl %%dx, %%eax" : "=a"(r) : "d"(port));
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return r;
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}
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void amd64_io_insw (uint16_t port, void* addr, int cnt) {
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__asm__ volatile ("cld; rep insw" : "+D"(addr), "+c"(cnt) : "d"(port) : "memory", "cc");
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}
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void amd64_io_wait (void) { amd64_io_outb (0x80, 0); }
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