root / hw / arm_pic.c @ cf4dc461
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| 1 | 5fafdf24 | ths | /*
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| 2 | cdbdb648 | pbrook | * Generic ARM Programmable Interrupt Controller support.
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| 3 | cdbdb648 | pbrook | *
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| 4 | cdbdb648 | pbrook | * Copyright (c) 2006 CodeSourcery.
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| 5 | cdbdb648 | pbrook | * Written by Paul Brook
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| 6 | cdbdb648 | pbrook | *
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| 7 | 8e31bf38 | Matthew Fernandez | * This code is licensed under the LGPL
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| 8 | cdbdb648 | pbrook | */
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| 9 | cdbdb648 | pbrook | |
| 10 | 87ecb68b | pbrook | #include "hw.h" |
| 11 | 87ecb68b | pbrook | #include "arm-misc.h" |
| 12 | cdbdb648 | pbrook | |
| 13 | d537cf6c | pbrook | /* Input 0 is IRQ and input 1 is FIQ. */
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| 14 | cdbdb648 | pbrook | static void arm_pic_cpu_handler(void *opaque, int irq, int level) |
| 15 | cdbdb648 | pbrook | {
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| 16 | d537cf6c | pbrook | CPUState *env = (CPUState *)opaque; |
| 17 | cdbdb648 | pbrook | switch (irq) {
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| 18 | cdbdb648 | pbrook | case ARM_PIC_CPU_IRQ:
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| 19 | cdbdb648 | pbrook | if (level)
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| 20 | d537cf6c | pbrook | cpu_interrupt(env, CPU_INTERRUPT_HARD); |
| 21 | cdbdb648 | pbrook | else
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| 22 | d537cf6c | pbrook | cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); |
| 23 | cdbdb648 | pbrook | break;
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| 24 | cdbdb648 | pbrook | case ARM_PIC_CPU_FIQ:
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| 25 | cdbdb648 | pbrook | if (level)
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| 26 | d537cf6c | pbrook | cpu_interrupt(env, CPU_INTERRUPT_FIQ); |
| 27 | cdbdb648 | pbrook | else
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| 28 | d537cf6c | pbrook | cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ); |
| 29 | cdbdb648 | pbrook | break;
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| 30 | cdbdb648 | pbrook | default:
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| 31 | 47601f22 | Andreas Färber | hw_error("arm_pic_cpu_handler: Bad interrupt line %d\n", irq);
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| 32 | cdbdb648 | pbrook | } |
| 33 | cdbdb648 | pbrook | } |
| 34 | cdbdb648 | pbrook | |
| 35 | d537cf6c | pbrook | qemu_irq *arm_pic_init_cpu(CPUState *env) |
| 36 | cdbdb648 | pbrook | {
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| 37 | d537cf6c | pbrook | return qemu_allocate_irqs(arm_pic_cpu_handler, env, 2); |
| 38 | cdbdb648 | pbrook | } |