ioapic.h File Reference

Go to the source code of this file.

Functions
void	IOAPIC_Init ()
void	IOAPIC_Enable (int irq)
void	IOAPIC_Disable (int irq)

Function Documentation

IOAPIC_Disable()

void IOAPIC_Disable

(

int

irq

)

Definition at line 77 of file ioapic.c.

{
    uint32_t val = IOAPIC_Read(IOREDTBL0 + 2*irq);
    IOAPIC_Write(IOREDTBL0 + 2*irq, val | IOREDTBL_MASK);
}

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IOAPIC_Enable()

void IOAPIC_Enable

(

int

irq

)

Definition at line 70 of file ioapic.c.

{
    uint32_t val = IOAPIC_Read(IOREDTBL0 + 2*irq);
    IOAPIC_Write(IOREDTBL0 + 2*irq, val & ~IOREDTBL_MASK);
}

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IOAPIC_Init()

void IOAPIC_Init

(

)

Definition at line 54 of file ioapic.c.

{
    int i;
    uint32_t id = (IOAPIC_Read(IOAPICID) >> 24) & 0x0F;
    uint32_t maxInts = (IOAPIC_Read(IOAPICVER) >> 16) & 0xFF;
 
    kprintf("IOAPIC: ID:%d Max Interrupts: %d\n", id, maxInts);
 
    for (i = 0; i < IOREDTBL_LEN; i++)
    {
        IOAPIC_Write(IOREDTBL0 + 2*i, IOREDTBL_MASK | (T_IRQ_BASE + i));
        IOAPIC_Write(IOREDTBL0 + 2*i + 1, 0);
    }
}

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