kernel/arch/x86/irq/sample_handler.c

   1 #include <tty.h>
   2 #include <irq/i8259a.h>
   3 #include <io.h>
   4 #include <stdint.h>
   5 #include <time/i8254.h>
   6
   7 unsigned int ticks = 0;
   8
   9 typedef uint32_t uword_t;
  10
  11 struct interrupt_frame {
  12         uword_t ip;
  13         uword_t cs;
  14         uword_t flags;
  15 };
  16
  17 struct abort_frame;
  18
  19 __attribute__((interrupt))
  20 void keyb_handler(struct interrupt_frame *frame)
  21 {
  22         pic_send_eoi(1);
  23         kprint("Got a keyboard interrupt!\n", 0);
  24         inb(0x60);
  25 }
  26
  27
  28 __attribute__((interrupt))
  29 void double_fault(struct abort_frame *frame)
  30 {
  31         *(volatile uint32_t *) (0xb8000) = 0xcf28cf3a;
  32 halt:
  33         asm volatile ("cli; hlt");
  34         goto halt;
  35 }
  36
  37
  38 __attribute__((interrupt))
  39 void timer_tick(struct interrupt_frame *frame)
  40 {
  41         pic_send_eoi(0);
  42         ticks++;
  43 }