49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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#ifndef INTERUPTS_H
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#define INTERUPTS_H
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#include <stdint.h>
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typedef struct stack_t Stack;
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struct stack_t
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{
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/* Pushed the segs last */
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uint32_t gs, fs, es, ds;
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/* Pushed by 'pusha' */
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uint32_t edi, esi, ebp, esp, ebx, edx, ecx, eax;
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/* Our 'push #' and ecodes do this */
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uint32_t id, err_code;
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/* Pushed by the processor automatically */
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uint32_t eip, cs, eflags, useresp, ss;
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};
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#define NB_ISR_ROUTINES 256
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void isr_install_handler(uint8_t isr, void (*handler)(Stack *registers));
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void isr_uninstall_handler(uint8_t isr);
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void isr_call_handler(Stack *registers);
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void isr_install(void);
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#define NB_IRQ_ROUTINES 16
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#define PIC1 0x20 /* master PIC */
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#define PIC2 0xA0 /* slave PIC */
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#define PIC1_CMD PIC1
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#define PIC1_DATA (PIC1 + 1)
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#define PIC2_CMD PIC2
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#define PIC2_DATA (PIC2 + 1)
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#define PIC1_OFFSET 0x20
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#define PIC2_OFFSET 0x28
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#define PIC_EOI 0x20
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#define ICW1_ICW4 0x01
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#define ICW1_INIT 0x10
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#define ICW4_8086 0x01
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void irq_install_handler(uint8_t irq, void (*handler)(Stack *registers));
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void irq_uninstall_handler(uint8_t irq);
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void irq_call_handler(Stack *registers);
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void irq_install(void);
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#endif
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