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1 | /* | |
2 | * QEMU CRIS CPU interrupt wrapper logic. | |
3 | * | |
4 | * Copyright (c) 2009 Edgar E. Iglesias, Axis Communications AB. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "hw/sysbus.h" | |
26 | #include "hw/hw.h" | |
27 | #include "hw/cris/etraxfs.h" | |
28 | ||
29 | #define D(x) | |
30 | ||
31 | static void cris_pic_cpu_handler(void *opaque, int irq, int level) | |
32 | { | |
33 | CRISCPU *cpu = opaque; | |
34 | CPUState *cs = CPU(cpu); | |
35 | int type = irq ? CPU_INTERRUPT_NMI : CPU_INTERRUPT_HARD; | |
36 | ||
37 | if (level) { | |
38 | cpu_interrupt(cs, type); | |
39 | } else { | |
40 | cpu_reset_interrupt(cs, type); | |
41 | } | |
42 | } | |
43 | ||
44 | qemu_irq *cris_pic_init_cpu(CPUCRISState *env) | |
45 | { | |
46 | return qemu_allocate_irqs(cris_pic_cpu_handler, cris_env_get_cpu(env), 2); | |
47 | } |