80 lines
3.4 KiB
C
80 lines
3.4 KiB
C
/* $NetBSD: irq.h,v 1.8 2001/01/23 22:07:58 bjh21 Exp $ */
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/*-
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* Copyright (c) 2000 Ben Harris
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */
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#ifndef _ARM26_IRQ_H
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#define _ARM26_IRQ_H
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#include <arch/arm26/iobus/iocreg.h>
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/* return values from interrupt handlers */
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/* These are the same as arm32 uses */
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#define IRQ_HANDLED 1
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#define IRQ_NOT_HANDLED 0
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#define IRQ_MAYBE_HANDLED -1
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/*
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* These definitions specify how the devices are wired to the IOC
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* interrupt lines.
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*/
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/* All systems */
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#define IRQ_PFIQ IOC_IRQ_IL0 /* Podule FIQ request */
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#define IRQ_SIRQ IOC_IRQ_IL1 /* Sound buffer pointer used */
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#define IRQ_PIRQ IOC_IRQ_IL5 /* Podule IRQ request */
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#define IRQ_VFLYBK IOC_IRQ_IR /* Start of display vertical flyback */
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/* Archimedes systems */
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#define IRQ_SLCI IOC_IRQ_IL2 /* Serial line controller interrupt */
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#define IRQ_WIRQ IOC_IRQ_IL3 /* Winchester interrupt request */
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#define IRQ_DCIRQ IOC_IRQ_IL4 /* Disc change interrupt request */
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#define IRQ_PBSY IOC_IRQ_IL6 /* Printer Busy Input */
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#define IRQ_RII IOC_IRQ_IL7 /* Serial line ring indicator input */
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#define IRQ_PACK IOC_IRQ_IF /* Printer acknowledge input */
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/* IOEB systems */
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#define IRQ_SINTR IOC_IRQ_IL2 /* Serial line interrupt */
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#define IRQ_IDEINTR IOC_IRQ_IL3 /* IDE interrupt */
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#define IRQ_FINTR IOC_IRQ_IL4 /* Floppy disc interrupt */
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#define IRQ_LPINTR IOC_IRQ_IL6 /* Parallel port latched interrupt */
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#define IRQ_INDEX IOC_IRQ_IF /* Start of floppy disc index pulse */
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/* IRQ numbers above 15 are non-IOC IRQs */
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#define IRQ_UNIXBP_BASE 16
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struct irq_handler;
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struct evcnt;
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extern void irq_init(void);
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/* irq_handler is declared in machdep.h */
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/* splx, raisespl and lowerspl are declared in intr.h */
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extern struct irq_handler *irq_establish(int, int, int(*)(void *), void *,
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struct evcnt *);
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extern char const *irq_string(struct irq_handler *);
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extern void irq_enable(struct irq_handler *);
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extern void irq_disable(struct irq_handler *);
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extern void irq_genmasks(void);
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extern void irq_stat(void (*)(const char *, ...));
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#endif
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