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Software of the Month Club 2000 October
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Software of the Month - Ultimate Collection Shareware 277.iso
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pc
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PROGRAMS
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UTILITY
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WINLINUX
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DATA1.CAB
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programs_-_include
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ASM-I386
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IRQ.H
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C/C++ Source or Header
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1999-09-17
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825b
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35 lines
#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H
/*
* linux/include/asm/irq.h
*
* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
*
* IRQ/IPI changes taken from work by Thomas Radke
* <tomsoft@informatik.tu-chemnitz.de>
*/
#define TIMER_IRQ 0
/*
* 16 8259A IRQ's, 240 potential APIC interrupt sources.
* Right now the APIC is mostly only used for SMP.
* 256 vectors is an architectural limit. (we can have
* more than 256 devices theoretically, but they will
* have to use shared interrupts)
* Since vectors 0x00-0x1f are used/reserved for the CPU,
* the usable vector space is 0x20-0xff (224 vectors)
*/
#define NR_IRQS 224
static __inline__ int irq_cannonicalize(int irq)
{
return ((irq == 2) ? 9 : irq);
}
extern void disable_irq(unsigned int);
extern void enable_irq(unsigned int);
#endif /* _ASM_IRQ_H */