1 files changed, 15 insertions, 2 deletions
diff --git a/hw/irq.h b/hw/irq.h
index 652fd6abe..0880ad21b 100644
--- a/hw/irq.h
+++ b/hw/irq.h
@@ -1,8 +1,11 @@
+#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 struct IRQState *qemu_irq;
+typedef void SetIRQFunc(void *opaque, int irq_num, int level);
 
 void qemu_set_irq(qemu_irq irq, int level);
 
@@ -16,6 +19,16 @@ 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