event.c File Reference

#include <libc.h>
#include <types.h>
#include <errno.h>
#include <core/syscall.h>
#include "event.h"
#include "sysdesc.h"

Go to the source code of this file.

Macros
#define	IDT_SIZE   256

Functions
pok_ret_t	pok_event_init ()
pok_ret_t	pok_idt_init ()
void	pok_idt_set_gate (uint16_t index, uint16_t segsel, uint32_t offset, e_idte_type t, int dpl)

Variables
idt_entry_t	pok_idt [IDT_SIZE]

---

Macro Definition Documentation

#define IDT_SIZE   256

Definition at line 27 of file event.c.

---

Function Documentation

pok_ret_t pok_event_init

(

)

Definition at line 31 of file event.c.

{
   pok_idt_init ();

#if defined (POK_NEEDS_DEBUG) || defined (POK_NEEDS_ERROR_HANDLING)
   pok_exception_init ();
#endif

   pok_syscall_init ();

   return (POK_ERRNO_OK);
}

pok_ret_t pok_idt_init

(

)

Definition at line 44 of file event.c.

{
   sysdesc_t sysdesc;

   /* Clear table */
   memset(pok_idt, 0, sizeof (idt_entry_t) * IDT_SIZE);

   /* Load IDT */
   sysdesc.limit = sizeof (pok_idt);
   sysdesc.base = (uint32_t)pok_idt;

   asm ("lidt %0"
        :
        : "m" (sysdesc));

  return (POK_ERRNO_OK);
}

void pok_idt_set_gate	(	uint16_t	index,
		uint16_t	segsel,
		uint32_t	offset,
		e_idte_type	t,
		int	dpl
	)

Definition at line 62 of file event.c.

{
   pok_idt[index].offset_low   = (offset) & 0xFFFF;
   pok_idt[index].offset_high  = (offset >> 16) & 0xFFFF;
   pok_idt[index].segsel       = segsel;
   pok_idt[index].dpl          = dpl;
   pok_idt[index].type         = t;
   pok_idt[index].d            = 1;
   pok_idt[index].res0         = 0; /* reserved */
   pok_idt[index].res1         = 0; /* reserved */
   pok_idt[index].present   = 1;
}

---

Variable Documentation

idt_entry_t pok_idt[IDT_SIZE]

Definition at line 29 of file event.c.