Archipelago » qemu

/*

 * Generic ARM Programmable Interrupt Controller support.

 *

 * Copyright (c) 2006 CodeSourcery.

 * Written by Paul Brook

 *

 * This code is licensed under the LGPL

 */

#include "hw.h"

#include "arm-misc.h"

/* Input 0 is IRQ and input 1 is FIQ.  */

static void arm_pic_cpu_handler(void *opaque, int irq, int level)

{

    ARMCPU *cpu = opaque;

    CPUARMState *env = &cpu->env;

    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:

        hw_error("arm_pic_cpu_handler: Bad interrupt line %d\n", irq);

    }

}

qemu_irq *arm_pic_init_cpu(ARMCPU *cpu)

{

    return qemu_allocate_irqs(arm_pic_cpu_handler, cpu, 2);

}