isr.h

//
// isr.h -- Interface and structures for high level interrupt service routines.
// Code from JamesM's kernel development tutorials
// @See: interrupt.s
//

#include "common.h"

// A few defines to make life a little easier.
#define IRQ0  32
#define IRQ1  33
#define IRQ2  34
#define IRQ3  35
#define IRQ4  36
#define IRQ5  37
#define IRQ6  38
#define IRQ7  39
#define IRQ8  40
#define IRQ9  41
#define IRQ10 42
#define IRQ11 43
#define IRQ12 44
#define IRQ13 45
#define IRQ14 46
#define IRQ15 47

typedef struct registers
{
    u32int ds;                  // Data segment selector.
    u32int edi, esi, ebp, esp, ebx, edx, ecx, eax; // Pushed by pusha
    u32int int_no, err_code;    // Interrupt number and error code if any
    u32int eip, cs, eflags, useresp, ss; //Pushed by the processor automatically
} registers_t;

void isr_handler(registers_t regs);
void irq_handler(registers_t regs);

// Enables registration of callbacks for interrupt or IRQs.
// For IRQs, to ease confusion, use the #defines above as the first parameter.
typedef void(*isr_t)(registers_t);
void register_interrupt_handler(u8int n, isr_t handler);