/* * 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); extern int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *); #endif /* !__ASSEMBLY__ */ #endif /* __V850_IRQ_H__ */