irq.h
来自「xen虚拟机源代码安装包」· C头文件 代码 · 共 35 行
H
35 行
#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
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