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| author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
| commit | 55f4e4a5ec657a017e3bf75299ad71fd1c968dd3 (patch) | |
| tree | 550ce922ea0e125ac6a9738210ce2939bf2fe901 /hw/irq.h | |
| parent | 413f05aaf54fa08c0ae7e997327a4f4a473c0a8d (diff) | |
| download | external_qemu-55f4e4a5ec657a017e3bf75299ad71fd1c968dd3.zip external_qemu-55f4e4a5ec657a017e3bf75299ad71fd1c968dd3.tar.gz external_qemu-55f4e4a5ec657a017e3bf75299ad71fd1c968dd3.tar.bz2 | |
Initial Contribution
Diffstat (limited to 'hw/irq.h')
| -rw-r--r-- | hw/irq.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/hw/irq.h b/hw/irq.h new file mode 100644 index 0000000..814511a --- /dev/null +++ b/hw/irq.h @@ -0,0 +1,32 @@ +#ifndef QEMU_IRQ_H +#define QEMU_IRQ_H + +/* Generic IRQ/GPIO pin infrastructure. */ + +typedef void (*qemu_irq_handler)(void *opaque, int n, 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 |