ReactOS Development > Doxygen

00001 /*
00002  * $Id: halirq.h 23669 2006-08-23 16:58:43Z ion $
00003  */
00004 
00005 #pragma once
00006 
00007 #ifdef CONFIG_SMP
00008 
00009 #define FIRST_DEVICE_VECTOR (0x30)
00010 #define FIRST_SYSTEM_VECTOR (0xef)
00011 
00012 #define IRQ_BASE        FIRST_DEVICE_VECTOR
00013 #define NR_IRQS         (FIRST_SYSTEM_VECTOR - FIRST_DEVICE_VECTOR)
00014 
00015 /*
00016  * FIXME:
00017  *   This does not work if we have more than 24 IRQs (ie. more than one I/O APIC)
00018  */
00019 #define VECTOR2IRQ(vector)  (23 - (vector - IRQ_BASE) / 8)
00020 #define VECTOR2IRQL(vector) (PROFILE_LEVEL - VECTOR2IRQ(vector))
00021 #define IRQ2VECTOR(irq)     (((23 - (irq)) * 8) + FIRST_DEVICE_VECTOR)
00022 
00023 #else
00024 
00025 #define IRQ_BASE        (0x30)
00026 #define NR_IRQS         (16)
00027 
00028 #define VECTOR2IRQ(vector)  ((vector) - IRQ_BASE)
00029 #define VECTOR2IRQL(vector) (PROFILE_LEVEL - VECTOR2IRQ(vector))
00030 #define IRQ2VECTOR(irq)     ((irq) + IRQ_BASE)
00031 
00032 #endif
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