diff options
Diffstat (limited to 'include/asm-v850/irq.h')
-rw-r--r-- | include/asm-v850/irq.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-v850/irq.h b/include/asm-v850/irq.h new file mode 100644 index 0000000..4443115 --- /dev/null +++ b/include/asm-v850/irq.h @@ -0,0 +1,69 @@ +/* + * 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__ */ |