root / hw / arm_pic.c @ 2ac71179
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/*
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* Generic ARM Programmable Interrupt Controller support.
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*
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* Copyright (c) 2006 CodeSourcery.
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* Written by Paul Brook
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*
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* This code is licenced under the LGPL
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*/
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#include "hw.h" |
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#include "pc.h" |
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#include "arm-misc.h" |
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/* Stub functions for hardware that doesn't exist. */
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void pic_info(Monitor *mon)
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{
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} |
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void irq_info(Monitor *mon)
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{
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} |
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/* Input 0 is IRQ and input 1 is FIQ. */
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static void arm_pic_cpu_handler(void *opaque, int irq, int level) |
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{
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CPUState *env = (CPUState *)opaque; |
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switch (irq) {
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case ARM_PIC_CPU_IRQ:
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if (level)
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cpu_interrupt(env, CPU_INTERRUPT_HARD); |
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else
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cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); |
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break;
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case ARM_PIC_CPU_FIQ:
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if (level)
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cpu_interrupt(env, CPU_INTERRUPT_FIQ); |
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else
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cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ); |
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break;
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default:
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hw_error("arm_pic_cpu_handler: Bad interrput line %d\n", irq);
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} |
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} |
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qemu_irq *arm_pic_init_cpu(CPUState *env) |
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{
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return qemu_allocate_irqs(arm_pic_cpu_handler, env, 2); |
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} |