41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
#pragma once
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#include "interrupt.h"
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#define save_flags(flags) asm volatile("pushfl ; popl %0" : "=g"(flags)::"memory")
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#define restore_flags(flags) asm volatile("push %0; popfl" ::"g"(flags) : "memory")
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#define disable_IRQs(flags) \
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({ \
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save_flags(flags); \
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asm("cli\n"); \
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})
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#define restore_IRQs(flags) restore_flags(flags)
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#define IRQ_TIMER 0 // MASTER IRQ
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#define IRQ_KEYBOARD 1
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#define IRQ_SLAVE_PIC 2
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#define IRQ_COM2 3
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#define IRQ_COM1 4
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#define IRQ_LPT2 5
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#define IRQ_FLOPPY 6
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#define IRQ_LPT1 7
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#define IRQ_8_NOT_DEFINED 8 // SLAVE
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#define IRQ_RESERVED_1 9 // SLAVE IRQ
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#define IRQ_RESERVED_2 10
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#define IRQ_RESERVED_3 11
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#define IRQ_RESERVED_4 12
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#define IRQ_COPROCESSOR 13
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#define IRQ_HARDDISK 14
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#define IRQ_RESERVED_5 15
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#define IRQ_INTERRUPT_BASE_ADDRESS 0x20
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#define IRQ_NUM 16
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// An handler should finish by the iret opcode -> https://wiki.osdev.org/Interrupt_Service_Routines
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// That's why we use wrapper around them or the gcc interrupt attribut
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// __attribute__((interrupt)) void (*irq_handler)(int irq);
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typedef void (*irq_handler)(struct interrupt_frame *frame);
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int irqSetup();
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int irqSetRoutine(int irq, irq_handler handler);
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