5fafdf24ef
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/*
|
|
* Generic ARM Programmable Interrupt Controller support.
|
|
*
|
|
* Copyright (c) 2006 CodeSourcery.
|
|
* Written by Paul Brook
|
|
*
|
|
* This code is licenced under the LGPL
|
|
*/
|
|
|
|
#include "vl.h"
|
|
#include "arm_pic.h"
|
|
|
|
/* Stub functions for hardware that doesn't exist. */
|
|
void pic_info(void)
|
|
{
|
|
}
|
|
|
|
void irq_info(void)
|
|
{
|
|
}
|
|
|
|
|
|
/* Input 0 is IRQ and input 1 is FIQ. */
|
|
static void arm_pic_cpu_handler(void *opaque, int irq, int level)
|
|
{
|
|
CPUState *env = (CPUState *)opaque;
|
|
switch (irq) {
|
|
case ARM_PIC_CPU_IRQ:
|
|
if (level)
|
|
cpu_interrupt(env, CPU_INTERRUPT_HARD);
|
|
else
|
|
cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
|
|
break;
|
|
case ARM_PIC_CPU_FIQ:
|
|
if (level)
|
|
cpu_interrupt(env, CPU_INTERRUPT_FIQ);
|
|
else
|
|
cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ);
|
|
break;
|
|
default:
|
|
cpu_abort(env, "arm_pic_cpu_handler: Bad interrput line %d\n", irq);
|
|
}
|
|
}
|
|
|
|
qemu_irq *arm_pic_init_cpu(CPUState *env)
|
|
{
|
|
return qemu_allocate_irqs(arm_pic_cpu_handler, env, 2);
|
|
}
|