2024-05-22 12:25:52 -04:00
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#ifndef RK_PIC8259_H
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#define RK_PIC8259_H
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2024-05-21 22:07:04 -04:00
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#define PIC_1_COMMAND 0x20
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#define PIC_2_COMMAND 0xA0
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#define PIC_1_DATA 0x21
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#define PIC_2_DATA 0xA1
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#define PIC_EOI 0x20
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#define PIC_1_START 32
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#define PIC_2_START 40
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#define PIC_1_ICW3 0x04
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#define PIC_2_ICW3 0x02
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2024-05-26 02:33:18 -04:00
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#include <kernel/io.h>
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2024-05-21 22:07:04 -04:00
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enum ICW1 {
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ICW4_NEEDED = 0x01,
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SINGLE_MODE = 0x02,
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INTERVAL_4 = 0x04,
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LVL_TRIGGER = 0x08,
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INIT_BIT = 0x10,
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};
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void pic_send_eoi(uint8_t irq);
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void pic_remap(int pic1_start, int pic2_start);
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#endif
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