[Qemu-devel] [PATCH v13 11/12] sysbus: add irq_set_hook

[Eric Auger <eric.auger@linaro.org>]

Add a new callback in the SysBusDeviceClass. This callback now can
be overriden by devices inheriting from sysbus. By default the callback
is set to the dummy object_property_allow_set_link callback.

Signed-off-by: Eric Auger <eric.auger@linaro.org>

---

v1 -> v2:
- use new LinkPropertySetter type
---
 hw/core/sysbus.c    | 7 ++++++-
 include/hw/sysbus.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 1bcb64d..ee573b4 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -159,8 +159,10 @@ void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
 /* Request an IRQ source.  The actual IRQ object may be populated later.  */
 void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p)
 {
+    SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(dev);
+
     qdev_init_gpio_out_named(DEVICE(dev), p, SYSBUS_DEVICE_GPIO_IRQ, 1,
-                             object_property_allow_set_link);
+                             sbc->irq_set_hook);
 }
 
 /* Pass IRQs from a target device.  */
@@ -311,8 +313,11 @@ MemoryRegion *sysbus_address_space(SysBusDevice *dev)
 static void sysbus_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *k = DEVICE_CLASS(klass);
+    SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+
     k->init = sysbus_device_init;
     k->bus_type = TYPE_SYSTEM_BUS;
+    sbc->irq_set_hook = object_property_allow_set_link;
 }
 
 static const TypeInfo sysbus_device_type_info = {
diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h
index d1f3f00..b8dde79 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -41,6 +41,7 @@ typedef struct SysBusDeviceClass {
     /*< public >*/
 
     int (*init)(SysBusDevice *dev);
+    LinkPropertySetter irq_set_hook;
 } SysBusDeviceClass;
 
 struct SysBusDevice {
-- 
1.8.3.2