[PATCH 3/3] sysbus: add irq_set_hook

Eric Auger
2015-04-28T09:09:48Z

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>
---
hw/core/sysbus.c | 8 +++++++-
include/hw/sysbus.h | 1 +
2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 8553a6f..e2c4899 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -165,7 +165,10 @@ 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)
{
- qdev_init_gpio_out_named(DEVICE(dev), p, SYSBUS_DEVICE_GPIO_IRQ, 1);
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(dev);
+
+ qdev_init_gpio_out_named(DEVICE(dev), p, SYSBUS_DEVICE_GPIO_IRQ, 1,
+ sbc->irq_set_hook);
}

/* Pass IRQs from a target device. */
@@ -316,8 +319,11 @@ 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 dbf3f0f..26ffb2e 100644
--- a/include/hw/sysbus.h
+++ b/include/hw/sysbus.h
@@ -42,6 +42,7 @@ typedef struct SysBusDeviceClass {

int (*init)(SysBusDevice *dev);
void (*irq_routing_notifier)(SysBusDevice *dev, qemu_irq irq);
+ object_property_set_link_t irq_set_hook;
} SysBusDeviceClass;

struct SysBusDevice {
--
1.8.3.2