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/*
* Copyright (C) 2001 Dave Engebretsen IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <asm/prom.h>
#include "pseries.h"
void request_event_sources_irqs(struct device_node *np,
irq_handler_t handler,
const char *name)
{
int i, index, count = 0;
struct of_irq oirq;
const u32 *opicprop;
unsigned int opicplen;
unsigned int virqs[16];
/* Check for obsolete "open-pic-interrupt" property. If present, then
* map those interrupts using the default interrupt host and default
* trigger
*/
opicprop = of_get_property(np, "open-pic-interrupt", &opicplen);
if (opicprop) {
opicplen /= sizeof(u32);
for (i = 0; i < opicplen; i++) {
if (count > 15)
break;
virqs[count] = irq_create_mapping(NULL, *(opicprop++));
if (virqs[count] == NO_IRQ) {
pr_err("event-sources: Unable to allocate "
"interrupt number for %s\n",
np->full_name);
WARN_ON(1);
}
else
count++;
}
}
/* Else use normal interrupt tree parsing */
else {
/* First try to do a proper OF tree parsing */
for (index = 0; of_irq_map_one(np, index, &oirq) == 0;
index++) {
if (count > 15)
break;
virqs[count] = irq_create_of_mapping(oirq.controller,
oirq.specifier,
oirq.size);
if (virqs[count] == NO_IRQ) {
pr_err("event-sources: Unable to allocate "
"interrupt number for %s\n",
np->full_name);
WARN_ON(1);
}
else
count++;
}
}
/* Now request them */
for (i = 0; i < count; i++) {
if (request_irq(virqs[i], handler, 0, name, NULL)) {
pr_err("event-sources: Unable to request interrupt "
"%d for %s\n", virqs[i], np->full_name);
WARN_ON(1);
return;
}
}
}
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