35 lines
766 B
C
35 lines
766 B
C
#ifndef QEMU_IRQ_H
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#define QEMU_IRQ_H
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/* Generic IRQ/GPIO pin infrastructure. */
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/* FIXME: Rmove one of these. */
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typedef void (*qemu_irq_handler)(void *opaque, int n, int level);
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typedef void SetIRQFunc(void *opaque, int irq_num, int level);
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void qemu_set_irq(qemu_irq irq, int level);
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static inline void qemu_irq_raise(qemu_irq irq)
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{
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qemu_set_irq(irq, 1);
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}
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static inline void qemu_irq_lower(qemu_irq irq)
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{
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qemu_set_irq(irq, 0);
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}
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static inline void qemu_irq_pulse(qemu_irq irq)
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{
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qemu_set_irq(irq, 1);
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qemu_set_irq(irq, 0);
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}
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/* Returns an array of N IRQs. */
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qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n);
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/* Returns a new IRQ with opposite polarity. */
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qemu_irq qemu_irq_invert(qemu_irq irq);
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#endif
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