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| author | Franklin Wei <frankhwei536@gmail.com> | 2015-03-01 14:20:47 -0500 |
|---|---|---|
| committer | Franklin Wei <frankhwei536@gmail.com> | 2015-03-01 14:20:47 -0500 |
| commit | c7252588ebb95f97631e9470778c69afa00c35b5 (patch) | |
| tree | 06d760878e18f6cddbe4305cddd4d5dfa74529f8 /kernel/irq.c | |
| parent | b8f54e63d2b8f8007c580adf2a6034c98a0f2eaa (diff) | |
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Huge restructure
Diffstat (limited to 'kernel/irq.c')
| -rw-r--r-- | kernel/irq.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/kernel/irq.c b/kernel/irq.c deleted file mode 100644 index c6dbf4c..0000000 --- a/kernel/irq.c +++ /dev/null @@ -1,73 +0,0 @@ -#include <stdint.h> -#include <stddef.h> -#include <stdio.h> -#include "idt.h" -#include "io.h" -#include "irq.h" -#include "isr.h" -#include "panic.h" - -/* in isr.c */ -extern void *int_callbacks[256]; - -void irq_remap(void) -{ - outb(0x20, 0x11); - outb(0xA0, 0x11); - outb(0x21, 0x20); - outb(0xA1, 0x28); - outb(0x21, 0x04); - outb(0xA1, 0x02); - outb(0x21, 0x01); - outb(0xA1, 0x01); - outb(0x21, 0x0); - outb(0xA1, 0x0); -} - -void irq_init(void) -{ - irq_remap(); - idt_set_gate(32, (uint32_t)_irq0, 0x08, 0x8E); - idt_set_gate(33, (uint32_t)_irq1, 0x08, 0x8E); - idt_set_gate(34, (uint32_t)_irq2, 0x08, 0x8E); - idt_set_gate(35, (uint32_t)_irq3, 0x08, 0x8E); - idt_set_gate(36, (uint32_t)_irq4, 0x08, 0x8E); - idt_set_gate(37, (uint32_t)_irq5, 0x08, 0x8E); - idt_set_gate(38, (uint32_t)_irq6, 0x08, 0x8E); - idt_set_gate(39, (uint32_t)_irq7, 0x08, 0x8E); - idt_set_gate(40, (uint32_t)_irq8, 0x08, 0x8E); - idt_set_gate(41, (uint32_t)_irq9, 0x08, 0x8E); - idt_set_gate(42, (uint32_t)_irq10, 0x08, 0x8E); - idt_set_gate(43, (uint32_t)_irq11, 0x08, 0x8E); - idt_set_gate(44, (uint32_t)_irq12, 0x08, 0x8E); - idt_set_gate(45, (uint32_t)_irq13, 0x08, 0x8E); - idt_set_gate(46, (uint32_t)_irq14, 0x08, 0x8E); - idt_set_gate(47, (uint32_t)_irq15, 0x08, 0x8E); - idt_set_gate(128,(uint32_t)_int0x80, 0x08, 0x8E); -} - -void irq_handler(struct regs_t *regs) -{ - void (*handler)(struct regs_t *r); - - handler = int_callbacks[regs->int_no]; - - if(handler) - { - handler(regs); - } - else - { - } - - /* If the IDT entry that was invoked was greater than 40 - * (meaning IRQ8 - 15), then we need to send an EOI to - * the slave controller */ - if (regs->int_no >= 40) - { - outb(0xA0, 0x20); - } - - /* send an EOI to the master controller */ - outb(0x20, 0x20); -} |