[Qemu-devel] [PATCH][RFC 04/14] qdev: add power on/off/suspend/wakeup handler

[liguang]

Signed-off-by: liguang <address@hidden>
---
 hw/qdev-core.h |    9 +++++
 hw/qdev.c      |   96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 0 deletions(-)

diff --git a/hw/qdev-core.h b/hw/qdev-core.h
index e69c50b..805ac69 100644
--- a/hw/qdev-core.h
+++ b/hw/qdev-core.h
@@ -262,6 +262,15 @@ void qdev_reset_all(DeviceState *dev);
 void qbus_reset_all(BusState *bus);
 void qbus_reset_all_fn(void *opaque);
 
+void qdev_power_on(DeviceState *dev);
+void qdev_power_off(DeviceState *dev);
+void qdev_power_wakeup(DeviceState *dev);
+void qdev_power_suspend(DeviceState *dev);
+void qbus_power_off(void *opaque);
+void qbus_power_wakeup(void *opaque);
+void qbus_power_suspend(void *opaque);
+void qbus_power_on(void *opaque);
+
 void qbus_free(BusState *bus);
 
 #define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
diff --git a/hw/qdev.c b/hw/qdev.c
index 2bed9d8..dfc265d 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -237,6 +237,102 @@ void qbus_reset_all_fn(void *opaque)
     qbus_reset_all(bus);
 }
 
+static int qdev_off_one(DeviceState *dev, void *opaque)
+{
+    device_reset(dev);
+
+    return 0;
+}
+
+static int qbus_off_one(BusState *bus, void *opaque)
+{
+    return 0;
+}
+
+static int qdev_on_one(DeviceState *dev, void *opaque)
+{
+    device_reset(dev);
+
+    return 0;
+}
+
+static int qbus_on_one(BusState *bus, void *opaque)
+{
+    return 0;
+}
+
+static int qdev_wakeup_one(DeviceState *dev, void *opaque)
+{
+    device_reset(dev);
+
+    return 0;
+}
+
+static int qbus_wakeup_one(BusState *bus, void *opaque)
+{
+    return 0;
+}
+
+static int qdev_suspend_one(DeviceState *dev, void *opaque)
+{
+    device_reset(dev);
+
+    return 0;
+}
+
+static int qbus_suspend_one(BusState *bus, void *opaque)
+{
+    return 0;
+}
+
+void qdev_power_on(DeviceState *dev)
+{
+    qdev_walk_children(dev, qdev_on_one, qbus_on_one, NULL);
+}
+
+void qbus_power_on(void *opaque)
+{
+    BusState *bus = opaque;
+
+    qbus_walk_children(bus, qdev_on_one, qbus_on_one, NULL);
+}
+
+void qdev_power_off(DeviceState *dev)
+{
+    qdev_walk_children(dev, qdev_off_one, qbus_off_one, NULL);
+}
+
+void qbus_power_off(void *opaque)
+{
+    BusState *bus = opaque;
+
+    qbus_walk_children(bus, qdev_off_one, qbus_off_one, NULL);
+}
+
+void qdev_power_wakeup(DeviceState *dev)
+{
+    qdev_walk_children(dev, qdev_wakeup_one, qbus_wakeup_one, NULL);
+}
+
+void qbus_power_wakeup(void *opaque)
+{
+    BusState *bus = opaque;
+
+    qbus_walk_children(bus, qdev_wakeup_one, qbus_wakeup_one, NULL);
+}
+
+void qdev_power_suspend(DeviceState *dev)
+{
+    qdev_walk_children(dev, qdev_suspend_one, qbus_suspend_one, NULL);
+}
+
+void qbus_power_suspend(void *opaque)
+{
+    BusState *bus = opaque;
+
+    qbus_walk_children(bus, qdev_suspend_one, qbus_suspend_one, NULL);
+}
+
 /* can be used as ->unplug() callback for the simple cases */
 int qdev_simple_unplug_cb(DeviceState *dev)
 {
-- 
1.7.2.5