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| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:32 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:32 -0800 |
| commit | 8b23a6c7e1aee255004dd19098d4c2462b61b849 (patch) | |
| tree | 7a4d682ba51f0ff0364c5ca2509f515bdaf96de9 /hw/irq.h | |
| parent | f721e3ac031f892af46f255a47d7f54a91317b30 (diff) | |
| download | external_qemu-8b23a6c7e1aee255004dd19098d4c2462b61b849.zip external_qemu-8b23a6c7e1aee255004dd19098d4c2462b61b849.tar.gz external_qemu-8b23a6c7e1aee255004dd19098d4c2462b61b849.tar.bz2 | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'hw/irq.h')
| -rw-r--r-- | hw/irq.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/hw/irq.h b/hw/irq.h new file mode 100644 index 0000000..0880ad2 --- /dev/null +++ b/hw/irq.h @@ -0,0 +1,34 @@ +#ifndef QEMU_IRQ_H +#define QEMU_IRQ_H + +/* Generic IRQ/GPIO pin infrastructure. */ + +/* FIXME: Rmove one of these. */ +typedef void (*qemu_irq_handler)(void *opaque, int n, int level); +typedef void SetIRQFunc(void *opaque, int irq_num, int level); + +void qemu_set_irq(qemu_irq irq, int level); + +static inline void qemu_irq_raise(qemu_irq irq) +{ + qemu_set_irq(irq, 1); +} + +static inline void qemu_irq_lower(qemu_irq irq) +{ + qemu_set_irq(irq, 0); +} + +static inline void qemu_irq_pulse(qemu_irq irq) +{ + qemu_set_irq(irq, 1); + qemu_set_irq(irq, 0); +} + +/* Returns an array of N IRQs. */ +qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n); + +/* Returns a new IRQ with opposite polarity. */ +qemu_irq qemu_irq_invert(qemu_irq irq); + +#endif |