76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
#include "types.h"
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#ifndef __INTERRUPTS_H__
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#define __INTERRUPTS_H__
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struct S_IDT_PTR {
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u16 Limit;
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u64 Base;
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} __attribute__ ((packed));
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typedef struct S_IDT_PTR T_IDT_PTR;
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struct S_IDT_ENTRY {
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u16 OffsetLow;
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u16 Selector;
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u8 Zero1;
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u8 Type : 4;
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u8 Zero2 : 1;
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u8 DPL : 2;
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u8 Present : 1;
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u16 OffsetMiddle;
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u32 OffsetHigh;
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u32 Reserved;
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} __attribute__ ((packed));
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typedef struct S_IDT_ENTRY T_IDT_ENTRY;
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enum E_INTERRUPTS_RING {
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E_INTERRUPTS_RING0 = 0,
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E_INTERRUPTS_RING1,
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E_INTERRUPTS_RING2,
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E_INTERRUPTS_RING3
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};
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typedef enum E_INTERRUPTS_RING T_INTERRUPTS_RING;
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// This is a structure that allows easy access to a 62-byte ASM stub which
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// calls a stdcall handler. Not the best way and not the shortest stub,
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// but hey, it works.
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struct S_ISR_STUB {
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u64 Code1;
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u64 Code2;
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u64 Code3;
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u16 Code4;
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u64 Handler;
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u64 Code5;
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u64 Code6;
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u64 Code7;
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u32 Code8;
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} __attribute__ ((packed));
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typedef struct S_ISR_STUB T_ISR_STUB;
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typedef struct {
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u64 r15, r14, r13, r12, r11, r10, r9, r8, rdi, rsi, rbp, rdx, rcx, rbx, rax;
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u64 Error;
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u64 rip, cs, rflags, rsp, ss;
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} __attribute__((packed)) T_ISR_REGISTERS_ERR;
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typedef struct {
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u64 r15, r14, r13, r12, r11, r10, r9, r8, rdi, rsi, rbp, rdx, rcx, rbx, rax;
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u64 rip, cs, rflags, rsp, ss;
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} __attribute ((packed)) T_ISR_REGISTERS;
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u8 interrupts_init_idt(void);
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void interrupts_setup_irq(u8 IRQ, void *Handler);
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void interrupts_delete_isr(u8 Interrupt);
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void interrupts_setup_isr_raw(u8 Interrupt, void *ASMHandler, \
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T_INTERRUPTS_RING Ring);
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void interrupts_setup_isr(u8 Interrupt, void *Handler, T_INTERRUPTS_RING Ring);
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void interrupts_init_simple(void);
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void interrupts_irq_finish(u8 IRQ);
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void interrupts_lidt(void);
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void interrupts_dump_idt_entry(u8 Interrupt);
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void interrupts_dump_idt_ptr(void);
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#endif
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