Unify IRQ handling.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2635 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 21 insertions, 0 deletions

diff --git a/hw/irq.h b/hw/irq.h
new file mode 100644
index 0000000000..652fd6abeb
--- /dev/null
+++ b/hw/irq.h
@@ -0,0 +1,21 @@
+/* Generic IRQ/GPIO pin infrastructure.  */
+
+typedef void (*qemu_irq_handler)(void *opaque, int n, int level);
+
+typedef struct IRQState *qemu_irq;
+
+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);
+}
+
+/* Returns an array of N IRQs.  */
+qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n);
+