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/*
* include/asm-v850/irq.h -- Machine interrupt handling
*
* Copyright (C) 2001,02,04 NEC Electronics Corporation
* Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_IRQ_H__
#define __V850_IRQ_H__
#include <asm/machdep.h>
/* Default NUM_MACH_IRQS. */
#ifndef NUM_MACH_IRQS
#define NUM_MACH_IRQS NUM_CPU_IRQS
#endif
/* NMIs have IRQ numbers from FIRST_NMI to FIRST_NMI+NUM_NMIS-1. */
#define FIRST_NMI NUM_MACH_IRQS
#define IRQ_NMI(n) (FIRST_NMI + (n))
/* v850 processors have 3 non-maskable interrupts. */
#define NUM_NMIS 3
/* Includes both maskable and non-maskable irqs. */
#define NR_IRQS (NUM_MACH_IRQS + NUM_NMIS)
#ifndef __ASSEMBLY__
struct pt_regs;
struct hw_interrupt_type;
struct irqaction;
#define irq_canonicalize(irq) (irq)
/* Initialize irq handling for IRQs.
BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL
to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */
extern void
init_irq_handlers (int base_irq, int num, int interval,
struct hw_interrupt_type *irq_type);
typedef void (*irq_handler_t)(int irq, void *data, struct pt_regs *regs);
/* Handle interrupt IRQ. REGS are the registers at the time of ther
interrupt. */
extern unsigned int handle_irq (int irq, struct pt_regs *regs);
/* Enable interrupt handling on an irq. */
extern void enable_irq(unsigned int irq);
/* Disable an irq and wait for completion. */
extern void disable_irq (unsigned int irq);
/* Disable an irq without waiting. */
extern void disable_irq_nosync (unsigned int irq);
#endif /* !__ASSEMBLY__ */
#endif /* __V850_IRQ_H__ */
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