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