projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * include/asm-v850/irq.h -- Machine interrupt handling | |
| 3 | * | |
| 4 | * Copyright (C) 2001,02,04 NEC Electronics Corporation | |
| 5 | * Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org> | |
| 6 | * | |
| 7 | * This file is subject to the terms and conditions of the GNU General | |
| 8 | * Public License. See the file COPYING in the main directory of this | |
| 9 | * archive for more details. | |
| 10 | * | |
| 11 | * Written by Miles Bader <miles@gnu.org> | |
| 12 | */ | |
| 13 | ||
| 14 | #ifndef __V850_IRQ_H__ | |
| 15 | #define __V850_IRQ_H__ | |
| 16 | ||
| 17 | #include <asm/machdep.h> | |
| 18 | ||
| 19 | /* Default NUM_MACH_IRQS. */ | |
| 20 | #ifndef NUM_MACH_IRQS | |
| 21 | #define NUM_MACH_IRQS NUM_CPU_IRQS | |
| 22 | #endif | |
| 23 | ||
| 24 | /* NMIs have IRQ numbers from FIRST_NMI to FIRST_NMI+NUM_NMIS-1. */ | |
| 25 | #define FIRST_NMI NUM_MACH_IRQS | |
| 26 | #define IRQ_NMI(n) (FIRST_NMI + (n)) | |
| 27 | /* v850 processors have 3 non-maskable interrupts. */ | |
| 28 | #define NUM_NMIS 3 | |
| 29 | ||
| 30 | /* Includes both maskable and non-maskable irqs. */ | |
| 31 | #define NR_IRQS (NUM_MACH_IRQS + NUM_NMIS) | |
| 32 | ||
| 33 | ||
| 34 | #ifndef __ASSEMBLY__ | |
| 35 | ||
| 36 | struct pt_regs; | |
| 37 | struct hw_interrupt_type; | |
| 38 | struct irqaction; | |
| 39 | ||
| 40 | #define irq_canonicalize(irq) (irq) | |
| 41 | ||
| 42 | /* Initialize irq handling for IRQs. | |
| 43 | BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL | |
| 44 | to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */ | |
| 45 | extern void | |
| 46 | init_irq_handlers (int base_irq, int num, int interval, | |
| 47 | struct hw_interrupt_type *irq_type); | |
| 48 | ||
| 49 | typedef void (*irq_handler_t)(int irq, void *data, struct pt_regs *regs); | |
| 50 | ||
| 51 | /* Handle interrupt IRQ. REGS are the registers at the time of ther | |
| 52 | interrupt. */ | |
| 53 | extern unsigned int handle_irq (int irq, struct pt_regs *regs); | |
| 54 | ||
| 55 | ||
| 56 | /* Enable interrupt handling on an irq. */ | |
| 57 | extern void enable_irq(unsigned int irq); | |
| 58 | ||
| 59 | /* Disable an irq and wait for completion. */ | |
| 60 | extern void disable_irq (unsigned int irq); | |
| 61 | ||
| 62 | /* Disable an irq without waiting. */ | |
| 63 | extern void disable_irq_nosync (unsigned int irq); | |
| 64 | ||
| 65 | extern int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *); | |
| 66 | ||
| 67 | #endif /* !__ASSEMBLY__ */ | |
| 68 | ||
| 69 | #endif /* __V850_IRQ_H__ */ |