root / hw / irq.h @ 2e885049
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1 | 87ecb68b | pbrook | #ifndef QEMU_IRQ_H
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2 | 87ecb68b | pbrook | #define QEMU_IRQ_H
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3 | 87ecb68b | pbrook | |
4 | d537cf6c | pbrook | /* Generic IRQ/GPIO pin infrastructure. */
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5 | d537cf6c | pbrook | |
6 | 87ecb68b | pbrook | /* FIXME: Rmove one of these. */
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7 | d537cf6c | pbrook | typedef void (*qemu_irq_handler)(void *opaque, int n, int level); |
8 | 87ecb68b | pbrook | typedef void SetIRQFunc(void *opaque, int irq_num, int level); |
9 | d537cf6c | pbrook | |
10 | d537cf6c | pbrook | void qemu_set_irq(qemu_irq irq, int level); |
11 | d537cf6c | pbrook | |
12 | d537cf6c | pbrook | static inline void qemu_irq_raise(qemu_irq irq) |
13 | d537cf6c | pbrook | { |
14 | d537cf6c | pbrook | qemu_set_irq(irq, 1);
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15 | d537cf6c | pbrook | } |
16 | d537cf6c | pbrook | |
17 | d537cf6c | pbrook | static inline void qemu_irq_lower(qemu_irq irq) |
18 | d537cf6c | pbrook | { |
19 | d537cf6c | pbrook | qemu_set_irq(irq, 0);
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20 | d537cf6c | pbrook | } |
21 | d537cf6c | pbrook | |
22 | 106627d0 | balrog | static inline void qemu_irq_pulse(qemu_irq irq) |
23 | 106627d0 | balrog | { |
24 | 106627d0 | balrog | qemu_set_irq(irq, 1);
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25 | 106627d0 | balrog | qemu_set_irq(irq, 0);
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26 | 106627d0 | balrog | } |
27 | 106627d0 | balrog | |
28 | d537cf6c | pbrook | /* Returns an array of N IRQs. */
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29 | d537cf6c | pbrook | qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n); |
30 | 51bf9e7e | aliguori | void qemu_free_irqs(qemu_irq *s);
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31 | d537cf6c | pbrook | |
32 | b50a6563 | balrog | /* Returns a new IRQ with opposite polarity. */
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33 | b50a6563 | balrog | qemu_irq qemu_irq_invert(qemu_irq irq); |
34 | 87ecb68b | pbrook | |
35 | 87ecb68b | pbrook | #endif |