79 lines
3.3 KiB
C
79 lines
3.3 KiB
C
/* $NetBSD: irq.h,v 1.2 2002/03/24 23:37:43 bjh21 Exp $ */
|
|
/*-
|
|
* Copyright (c) 2000 Ben Harris
|
|
* All rights reserved.
|
|
*
|
|
* 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. The name of the author may not 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 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.
|
|
*/
|
|
|
|
#ifndef _ARM26_IRQ_H
|
|
#define _ARM26_IRQ_H
|
|
#include <arch/acorn26/iobus/iocreg.h>
|
|
|
|
/* return values from interrupt handlers */
|
|
/* These are the same as arm32 uses */
|
|
#define IRQ_HANDLED 1
|
|
#define IRQ_NOT_HANDLED 0
|
|
#define IRQ_MAYBE_HANDLED -1
|
|
|
|
/*
|
|
* These definitions specify how the devices are wired to the IOC
|
|
* interrupt lines.
|
|
*/
|
|
/* All systems */
|
|
#define IRQ_PFIQ IOC_IRQ_IL0 /* Podule FIQ request */
|
|
#define IRQ_SIRQ IOC_IRQ_IL1 /* Sound buffer pointer used */
|
|
#define IRQ_PIRQ IOC_IRQ_IL5 /* Podule IRQ request */
|
|
#define IRQ_VFLYBK IOC_IRQ_IR /* Start of display vertical flyback */
|
|
/* Archimedes systems */
|
|
#define IRQ_SLCI IOC_IRQ_IL2 /* Serial line controller interrupt */
|
|
#define IRQ_WIRQ IOC_IRQ_IL3 /* Winchester interrupt request */
|
|
#define IRQ_DCIRQ IOC_IRQ_IL4 /* Disc change interrupt request */
|
|
#define IRQ_PBSY IOC_IRQ_IL6 /* Printer Busy Input */
|
|
#define IRQ_RII IOC_IRQ_IL7 /* Serial line ring indicator input */
|
|
#define IRQ_PACK IOC_IRQ_IF /* Printer acknowledge input */
|
|
/* IOEB systems */
|
|
#define IRQ_SINTR IOC_IRQ_IL2 /* Serial line interrupt */
|
|
#define IRQ_IDEINTR IOC_IRQ_IL3 /* IDE interrupt */
|
|
#define IRQ_FINTR IOC_IRQ_IL4 /* Floppy disc interrupt */
|
|
#define IRQ_LPINTR IOC_IRQ_IL6 /* Parallel port latched interrupt */
|
|
#define IRQ_INDEX IOC_IRQ_IF /* Start of floppy disc index pulse */
|
|
|
|
/* IRQ numbers above 15 are non-IOC IRQs */
|
|
#define IRQ_UNIXBP_BASE 16
|
|
|
|
struct irq_handler;
|
|
struct evcnt;
|
|
|
|
extern void irq_init(void);
|
|
/* irq_handler is declared in machdep.h */
|
|
/* splx, raisespl and lowerspl are declared in intr.h */
|
|
extern struct irq_handler *irq_establish(int, int, int(*)(void *), void *,
|
|
struct evcnt *);
|
|
extern char const *irq_string(struct irq_handler *);
|
|
extern void irq_enable(struct irq_handler *);
|
|
extern void irq_disable(struct irq_handler *);
|
|
extern void irq_genmasks(void);
|
|
extern void irq_stat(void (*)(const char *, ...));
|
|
#endif
|