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https://gitlab.com/qemu-project/qemu
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49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/*
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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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}
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