pit.h File Reference

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Functions
pok_ret_t	pok_x86_qemu_timer_init ()

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Function Documentation

pok_ret_t pok_x86_qemu_timer_init

(

)

Definition at line 40 of file pit.c.

{
   uint16_t pit_freq;

   pit_freq = POK_TIMER_FREQUENCY;

   outb (PIT_BASE + 3, 0x34); /* Channel0, rate generator, Set LSB then MSB */
   outb (PIT_BASE, (OSCILLATOR_RATE / pit_freq) & 0xff);
   outb (PIT_BASE, ((OSCILLATOR_RATE / pit_freq) >> 8) & 0xff);

   pok_bsp_irq_register (PIT_IRQ, pit_interrupt);

   return (POK_ERRNO_OK);
}