void InitNewIDT( uint32 newAddr ){ PIC_remap(0x20,0x28); SetupIDT( newAddr ); FillInterrupts( 256 ); // keyboard SetInterruptDescriptor( 0x21, 0x8, (uint32)Keyboard_int, INTERRUPT_TASK_GATE(0) ); ApplyIDT(); }
void idt_init(void) { idt_ptr.limit = sizeof(idt_entry_t) * 256 - 1; idt_ptr.base = (uint32_t) &idt_entry; memset(&idt_entry, 0, sizeof(idt_entry_t) * 256); /* Set access flags to 0x8E: entry present, is ring level 0 (kernel level) * and has lower 5 bits set to decimal 14 (hex E). */ idt_set_gate(0, (uint32_t) isr0, 0x08, 0x8E); idt_set_gate(1, (uint32_t) isr1, 0x08, 0x8E); idt_set_gate(2, (uint32_t) isr2, 0x08, 0x8E); idt_set_gate(3, (uint32_t) isr3, 0x08, 0x8E); idt_set_gate(4, (uint32_t) isr4, 0x08, 0x8E); idt_set_gate(5, (uint32_t) isr5, 0x08, 0x8E); idt_set_gate(6, (uint32_t) isr6, 0x08, 0x8E); idt_set_gate(7, (uint32_t) isr7, 0x08, 0x8E); idt_set_gate(8, (uint32_t) isr8, 0x08, 0x8E); idt_set_gate(9, (uint32_t) isr9, 0x08, 0x8E); idt_set_gate(10, (uint32_t) isr10, 0x08, 0x8E); idt_set_gate(11, (uint32_t) isr11, 0x08, 0x8E); idt_set_gate(12, (uint32_t) isr12, 0x08, 0x8E); idt_set_gate(13, (uint32_t) isr13, 0x08, 0x8E); idt_set_gate(14, (uint32_t) isr14, 0x08, 0x8E); idt_set_gate(15, (uint32_t) isr15, 0x08, 0x8E); idt_set_gate(16, (uint32_t) isr16, 0x08, 0x8E); idt_set_gate(17, (uint32_t) isr17, 0x08, 0x8E); idt_set_gate(18, (uint32_t) isr18, 0x08, 0x8E); idt_set_gate(19, (uint32_t) isr19, 0x08, 0x8E); idt_set_gate(20, (uint32_t) isr20, 0x08, 0x8E); idt_set_gate(21, (uint32_t) isr21, 0x08, 0x8E); idt_set_gate(22, (uint32_t) isr22, 0x08, 0x8E); idt_set_gate(23, (uint32_t) isr23, 0x08, 0x8E); idt_set_gate(24, (uint32_t) isr24, 0x08, 0x8E); idt_set_gate(25, (uint32_t) isr25, 0x08, 0x8E); idt_set_gate(26, (uint32_t) isr26, 0x08, 0x8E); idt_set_gate(27, (uint32_t) isr27, 0x08, 0x8E); idt_set_gate(28, (uint32_t) isr28, 0x08, 0x8E); idt_set_gate(29, (uint32_t) isr29, 0x08, 0x8E); idt_set_gate(30, (uint32_t) isr30, 0x08, 0x8E); idt_set_gate(31, (uint32_t) isr31, 0x08, 0x8E); idt_flush((uint32_t) &idt_ptr); PIC_remap(0x20, 0x28); }
bool irq_initialize(){ PIC_remap(0x20,0x27); idt_set_gate(32, (uint32_t)irq0 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(33, (uint32_t)irq1 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(34, (uint32_t)irq2 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(35, (uint32_t)irq3 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(36, (uint32_t)irq4 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(37, (uint32_t)irq5 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(38, (uint32_t)irq6 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(39, (uint32_t)irq7 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(40, (uint32_t)irq8 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(41, (uint32_t)irq9 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(42, (uint32_t)irq10 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(43, (uint32_t)irq11 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(44, (uint32_t)irq12 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(45, (uint32_t)irq13 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(46, (uint32_t)irq14 ,0x8 ,IDT_INTERRUPT_32); idt_set_gate(47, (uint32_t)irq15 ,0x8 ,IDT_INTERRUPT_32); return true; }
void interrupt_init() { init_idt(); PIC_remap(0x20, 0x28); }