85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
#ifndef _IO_H
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#define _IO_H
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#include <sys/types.h>
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#include <minix/syslib.h>
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#include "ip1000.h"
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/* I/O function */
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static u8_t my_inb(u32_t port) {
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u32_t value;
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int r;
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#ifdef DMA_BASE_IOMAP
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value = *(volatile u8_t *)(port);
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#else
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if ((r = sys_inb(port, &value)) != OK)
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printf("NDR: sys_inb failed: %d\n", r);
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#endif
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return (u8_t)value;
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}
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#define ndr_in8(port, offset) (my_inb((port) + (offset)))
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static u16_t my_inw(u32_t port) {
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u32_t value;
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int r;
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#ifdef DMA_BASE_IOMAP
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value = *(volatile u16_t *)(port);
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#else
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if ((r = sys_inw(port, &value)) != OK)
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printf("NDR: sys_inw failed: %d\n", r);
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#endif
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return (u16_t)value;
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}
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#define ndr_in16(port, offset) (my_inw((port) + (offset)))
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static u32_t my_inl(u32_t port) {
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u32_t value;
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int r;
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#ifdef DMA_BASE_IOMAP
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value = *(volatile u32_t *)(port);
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#else
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if ((r = sys_inl(port, &value)) != OK)
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printf("NDR: sys_inl failed: %d\n", r);
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#endif
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return value;
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}
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#define ndr_in32(port, offset) (my_inl((port) + (offset)))
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static void my_outb(u32_t port, u32_t value) {
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int r;
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#ifdef DMA_BASE_IOMAP
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*(volatile u8_t *)(port) = value;
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#else
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if ((r = sys_outb(port, (u8_t)value)) != OK)
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printf("NDR: sys_outb failed: %d\n", r);
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#endif
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}
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#define ndr_out8(port, offset, value) \
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(my_outb(((port) + (offset)), (value)))
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static void my_outw(u32_t port, u32_t value) {
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int r;
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#ifdef DMA_BASE_IOMAP
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*(volatile u16_t *)(port) = value;
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#else
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if ((r = sys_outw(port, (u16_t)value)) != OK)
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printf("NDR: sys_outw failed: %d\n", r);
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#endif
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}
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#define ndr_out16(port, offset, value) \
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(my_outw(((port) + (offset)), (value)))
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static void my_outl(u32_t port, u32_t value) {
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int r;
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#ifdef DMA_BASE_IOMAP
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*(volatile u32_t *)(port) = value;
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#else
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if ((r = sys_outl(port, value)) != OK)
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printf("NDR: sys_outl failed: %d\n", r);
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#endif
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}
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#define ndr_out32(port, offset, value) \
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(my_outl(((port) + (offset)), (value)))
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#endif
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