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133 lines
3.0 KiB
C
133 lines
3.0 KiB
C
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#ifndef _KALKERN_BASE_H
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#include <kernel/base.h>
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#endif
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#ifndef _KALKERN_IDT_H
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#define _KALKERN_IDT_H
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typedef struct IdtDescriptor_t IdtDescriptor_t;
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typedef struct IdtEntry_t IdtEntry_t;
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typedef struct IdtPtr_t IdtPtr_t;
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typedef struct IRQList_t IRQList_t;
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// -------------------------------------------------------------------------- //
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#define interrupt(n) asm volatile ("int %0" : : "N" (n) : "cc", "memory") \
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// -------------------------------------------------------------------------- //
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struct IdtDescriptor_t {
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ushort limit;
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ulong base;
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} __attribute__((packed)) ;
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struct IdtEntry_t
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{
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ushort baseLow;
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ushort selector;
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uchar reservedIst;
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uchar flags;
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ushort baseMid;
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uint baseHigh;
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uint reserved;
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} __attribute__((packed));
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struct IdtPtr_t
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{
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ushort limit;
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void *base;
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} __attribute__((packed));
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struct IRQList_t
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{
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uchar n; //number of entries in the list
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struct entry {
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void (*isr)(void);
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uchar irq;
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ulong base;
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ushort selector;
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uchar flags;
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} entry[225];
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};
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static char *IsrExceptions[32] = {
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"Divide Error Fault",
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"Debug Exception Trap",
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"Non-maskable Interrupt",
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"Breakpoint Trap",
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"Overflow Trap",
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"Bound Range Exceeded Fault",
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"Invalid Opcode Fault",
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"Device Not Available or No Math Coprocessor Fault",
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"Double Fault Abort",
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"Coprocessor Segment Overrun Fault",
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"Invalid TSS Fault",
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"Segment Not Present Fault",
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"Stack Segment fault",
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"General Protection Fault",
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"Page Fault",
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"Intel Reserved",
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"x87 FPU Floating Point or Math Fault",
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"Alignment Check Fault",
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"Machine Check Abort",
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"SIMD Floating Point Fault",
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"Virtualization Exception Fault",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved",
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"Intel Reserved"
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};
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// -------------------------------------------------------------------------- //
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void IdtRegisterIrq(void (*isr)(void), uchar irq, uchar flags);
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void IdtSetup(void);
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void IdtSetGate(uchar rank, ulong base, ushort selector, uchar flags);
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void IdtHandler(ulong intNo);
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static void DisablePIC(void);
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static void SendEOItoPIC(uchar isr);
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extern void CpuIdtInit();
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extern void isr0();
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extern void isr1();
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extern void isr2();
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extern void isr3();
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extern void isr4();
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extern void isr5();
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extern void isr6();
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extern void isr7();
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extern void isr8();
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extern void isr9();
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extern void isr10();
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extern void isr11();
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extern void isr12();
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extern void isr13();
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extern void isr14();
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extern void isr15();
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extern void isr16();
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extern void isr17();
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extern void isr18();
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extern void isr19();
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extern void isr20();
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extern void isr21();
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extern void isr22();
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extern void isr23();
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extern void isr24();
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extern void isr25();
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extern void isr26();
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extern void isr27();
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extern void isr28();
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extern void isr29();
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extern void isr30();
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extern void isr31();
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#endif
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