30 lines
683 B
C
30 lines
683 B
C
#include "pic.h"
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#include "io.h"
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void remap_pic(void)
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{
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// ICW1
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outb(MASTER_PORT_A, ICW1_INIT | ICW1_ICW4);
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outb(SLAVE_PORT_A, ICW1_INIT | ICW1_ICW4);
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// ICW2
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outb(MASTER_PORT_B, ICW2_M_OFFSET);
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outb(SLAVE_PORT_B, ICW2_S_OFFSET);
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// ICW3
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outb(MASTER_PORT_B, PIC_PIN_2);
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outb(SLAVE_PORT_B, 2);
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// ICW4
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outb(MASTER_PORT_B, ICW4_INIT);
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outb(SLAVE_PORT_B, ICW4_INIT);
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// OCW1
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outb(MASTER_PORT_B, PIC_PIN_3 | PIC_PIN_4 | PIC_PIN_5 |
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PIC_PIN_6 | PIC_PIN_7);
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outb(SLAVE_PORT_B, PIC_PIN_0 | PIC_PIN_1 | PIC_PIN_2 | PIC_PIN_3 |
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PIC_PIN_4 | PIC_PIN_5);
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asm volatile("sti");
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}
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