reactos/hal/halppc/include/halirq.h

   1 /*
   2  * $Id: halirq.h 23669 2006-08-23 16:58:43Z ion $
   3  */
   4
   5 #pragma once
   6
   7 #ifdef CONFIG_SMP
   8
   9 #define FIRST_DEVICE_VECTOR     (0x30)
  10 #define FIRST_SYSTEM_VECTOR     (0xef)
  11
  12 #define IRQ_BASE                FIRST_DEVICE_VECTOR
  13 #define NR_IRQS                 (FIRST_SYSTEM_VECTOR - FIRST_DEVICE_VECTOR)
  14
  15 /*
  16  * FIXME:
  17  *   This does not work if we have more than 24 IRQs (ie. more than one I/O APIC)
  18  */
  19 #define VECTOR2IRQ(vector)      (23 - (vector - IRQ_BASE) / 8)
  20 #define VECTOR2IRQL(vector)     (PROFILE_LEVEL - VECTOR2IRQ(vector))
  21 #define IRQ2VECTOR(irq)         (((23 - (irq)) * 8) + FIRST_DEVICE_VECTOR)
  22
  23 #else
  24
  25 #define IRQ_BASE                (0x30)
  26 #define NR_IRQS                 (16)
  27
  28 #define VECTOR2IRQ(vector)      ((vector) - IRQ_BASE)
  29 #define VECTOR2IRQL(vector)     (PROFILE_LEVEL - VECTOR2IRQ(vector))
  30 #define IRQ2VECTOR(irq)         ((irq) + IRQ_BASE)
  31
  32 #endif