2 * Generic ARM Programmable Interrupt Controller support.
4 * Copyright (c) 2006 CodeSourcery.
5 * Written by Paul Brook
7 * This code is licenced under the LGPL
13 /* Stub functions for hardware that doesn't exist. */
14 void pic_set_irq(int irq, int level)
16 cpu_abort(cpu_single_env, "pic_set_irq");
28 void pic_set_irq_new(void *opaque, int irq, int level)
30 arm_pic_handler *p = (arm_pic_handler *)opaque;
31 /* Call the real handler. */
32 (*p)(opaque, irq, level);
35 /* Model the IRQ/FIQ CPU interrupt lines as a two input interrupt controller.
36 Input 0 is IRQ and input 1 is FIQ. */
39 arm_pic_handler handler;
43 static void arm_pic_cpu_handler(void *opaque, int irq, int level)
45 arm_pic_cpu_state *s = (arm_pic_cpu_state *)opaque;
49 cpu_interrupt(s->cpu_env, CPU_INTERRUPT_HARD);
51 cpu_reset_interrupt(s->cpu_env, CPU_INTERRUPT_HARD);
55 cpu_interrupt(s->cpu_env, CPU_INTERRUPT_FIQ);
57 cpu_reset_interrupt(s->cpu_env, CPU_INTERRUPT_FIQ);
60 cpu_abort(s->cpu_env, "arm_pic_cpu_handler: Bad interrput line %d\n",
65 void *arm_pic_init_cpu(CPUState *env)
69 s = (arm_pic_cpu_state *)malloc(sizeof(arm_pic_cpu_state));
70 s->handler = arm_pic_cpu_handler;