/*
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* 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 unmodified, 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.
*
* 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.
*
* $FreeBSD$
*/
#ifndef _SYS_INTERRUPT_H_
#define _SYS_INTERRUPT_H_
/*
* Describe a hardware interrupt handler.
*
* Multiple interrupt handlers for a specific vector can be chained
* together via the 'next' pointer.
*/
struct intrhand {
driver_intr_t *ih_handler; /* code address of handler */
void *ih_argument; /* argument to pass to handler */
enum intr_type ih_flags; /* flag bits (sys/bus.h) */
char *ih_name; /* name of handler */
struct ithd *ih_ithd; /* handler we're connected to */
struct intrhand *ih_next; /* next handler for this irq */
int ih_need; /* need interrupt */
};
int ithread_priority __P((int flags));
void sched_swi __P((struct intrhand *, int));
#define SWI_SWITCH 0x1
#define SWI_NOSWITCH 0x2
#define SWI_DELAY 0x4 /* implies NOSWITCH */
struct intrhand * sinthand_add __P((const char *name, struct ithd **,
driver_intr_t, void *arg, int pri, int flags));
extern struct ithd *tty_ithd;
extern struct ithd *clk_ithd;
extern struct intrhand *net_ih;
extern struct intrhand *softclock_ih;
extern struct intrhand *vm_ih;
#endif
