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 "arm-misc.h"
   12: 
   13: /* Stub functions for hardware that doesn't exist.  */
   14: void pic_info(void)
   15: {
   16: }
   17: 
   18: void irq_info(void)
   19: {
   20: }
   21: 
   22: 
   23: /* Input 0 is IRQ and input 1 is FIQ.  */
   24: static void arm_pic_cpu_handler(void *opaque, int irq, int level)
   25: {
   26:     CPUState *env = (CPUState *)opaque;
   27:     switch (irq) {
   28:     case ARM_PIC_CPU_IRQ:
   29:         if (level)
   30:             cpu_interrupt(env, CPU_INTERRUPT_HARD);
   31:         else
   32:             cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
   33:         break;
   34:     case ARM_PIC_CPU_FIQ:
   35:         if (level)
   36:             cpu_interrupt(env, CPU_INTERRUPT_FIQ);
   37:         else
   38:             cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ);
   39:         break;
   40:     default:
   41:         cpu_abort(env, "arm_pic_cpu_handler: Bad interrput line %d\n", irq);
   42:     }
   43: }
   44: 
   45: qemu_irq *arm_pic_init_cpu(CPUState *env)
   46: {
   47:     return qemu_allocate_irqs(arm_pic_cpu_handler, env, 2);
   48: }