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/* $NetBSD: intr.c,v 1.12 2003/07/15 00:24:41 lukem Exp $ */
/*-
* Copyright (c) 2004 Olivier Houchard.
* Copyright (c) 1994-1998 Mark Brinicombe.
* 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. 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.
*
* Soft interrupt and other generic interrupt functions.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/syslog.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <sys/conf.h>
#include <machine/atomic.h>
#include <machine/intr.h>
#include <machine/cpu.h>
typedef void (*mask_fn)(void *);
static struct intr_event *intr_events[NIRQ];
static int intrcnt_tab[NIRQ];
static int intrcnt_index = 0;
static int last_printed = 0;
void arm_handler_execute(struct trapframe *, int);
void (*arm_post_filter)(void *) = NULL;
void
arm_setup_irqhandler(const char *name, driver_filter_t *filt,
void (*hand)(void*), void *arg, int irq, int flags, void **cookiep)
{
struct intr_event *event;
int error;
if (irq < 0 || irq >= NIRQ)
return;
event = intr_events[irq];
if (event == NULL) {
error = intr_event_create(&event, (void *)irq, 0, irq,
(mask_fn)arm_mask_irq, (mask_fn)arm_unmask_irq,
arm_post_filter, NULL, "intr%d:", irq);
if (error)
return;
intr_events[irq] = event;
last_printed +=
snprintf(intrnames + last_printed,
MAXCOMLEN + 1,
"irq%d: %s", irq, name);
last_printed++;
intrcnt_tab[irq] = intrcnt_index;
intrcnt_index++;
}
intr_event_add_handler(event, name, filt, hand, arg,
intr_priority(flags), flags, cookiep);
}
int
arm_remove_irqhandler(void *cookie)
{
return (intr_event_remove_handler(cookie));
}
void dosoftints(void);
void
dosoftints(void)
{
}
void
arm_handler_execute(struct trapframe *frame, int irqnb)
{
struct intr_event *event;
int i;
PCPU_INC(cnt.v_intr);
while ((i = arm_get_next_irq()) != -1) {
intrcnt[intrcnt_tab[i]]++;
event = intr_events[i];
if (intr_event_handle(event, frame) != 0) {
/* XXX: Log stray IRQs */
arm_mask_irq(i);
}
}
}
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