NetBSD/sys/arch/evbarm/ifpga/irqhandler.h

96 lines
3.5 KiB
C

/* $NetBSD: irqhandler.h,v 1.2 2002/04/12 18:50:32 thorpej Exp $ */
/*
* Copyright (c) 1994-1996 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Brinicombe
* for the NetBSD Project.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* IRQ related stuff (defines + structures)
*
* Created : 30/09/94
*/
/*
* XXX This allows the Integrator code to continue using the old
* XXX arm32 interrupt code. Eventually, Integrator should be
* XXX changed to use something more like what the IQ80310 code
* XXX uses.
*/
#ifndef _ARM32_IRQHANDLER_H_
#define _ARM32_IRQHANDLER_H_
#ifndef _LOCORE
#include <sys/types.h>
#endif /* _LOCORE */
#define IRQ_INSTRUCT -1
#define NIRQS 0x20
#ifndef _LOCORE
typedef struct irqhandler {
int (*ih_func) __P((void *arg));/* handler function */
void *ih_arg; /* Argument to handler */
int ih_level; /* Interrupt level */
int ih_num; /* Interrupt number (for accounting) */
const char *ih_name; /* Name of interrupt (for vmstat -i) */
u_int ih_flags; /* Interrupt flags */
u_int ih_maskaddr; /* mask address for expansion cards */
u_int ih_maskbits; /* interrupt bit for expansion cards */
struct irqhandler *ih_next; /* next handler */
} irqhandler_t;
#include <machine/intr.h>
#ifdef _KERNEL
extern u_int irqmasks[NIPL];
extern irqhandler_t *irqhandlers[NIRQS];
void irq_init __P((void));
void irq_postinit __P((void));
int irq_claim __P((int, irqhandler_t *));
int irq_release __P((int, irqhandler_t *));
void *intr_claim __P((int irq, int level, const char *name, int (*func) __P((void *)), void *arg));
int intr_release __P((void *ih));
void irq_setmasks __P((void));
void disable_irq __P((int));
void enable_irq __P((int));
#endif /* _KERNEL */
#endif /* _LOCORE */
#define IRQ_FLAG_ACTIVE 0x00000001 /* This is the active handler in list */
#endif /* _ARM32_IRQHANDLER_H_ */
/* End of irqhandler.h */