1/*
2 * Generic ARM Programmable Interrupt Controller support.
3 *
4 * Copyright (c) 2006 CodeSourcery.
5 * Written by Paul Brook
6 *
7 * This code is licenced under the LGPL
8 */
9
10#include "hw.h"
11#include "pc.h"
12#include "arm-misc.h"
13
14/* Stub functions for hardware that doesn't exist.  */
15void pic_info(Monitor *mon)
16{
17}
18
19void irq_info(Monitor *mon)
20{
21}
22
23
24/* Input 0 is IRQ and input 1 is FIQ.  */
25static void arm_pic_cpu_handler(void *opaque, int irq, int level)
26{
27    CPUState *env = (CPUState *)opaque;
28    switch (irq) {
29    case ARM_PIC_CPU_IRQ:
30        if (level)
31            cpu_interrupt(env, CPU_INTERRUPT_HARD);
32        else
33            cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
34        break;
35    case ARM_PIC_CPU_FIQ:
36        if (level)
37            cpu_interrupt(env, CPU_INTERRUPT_FIQ);
38        else
39            cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ);
40        break;
41    default:
42        hw_error("arm_pic_cpu_handler: Bad interrput line %d\n", irq);
43    }
44}
45
46qemu_irq *arm_pic_init_cpu(CPUState *env)
47{
48    return qemu_allocate_irqs(arm_pic_cpu_handler, env, 2);
49}
50