usb: add usb_wakeup() + wakeup callback to port ops

Add wakeup callback to port ops for remote wakeup handling.
Also add a usb_wakeup() function for devices which want
trigger a remote wakeup.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/hw/usb.c b/hw/usb.c
index 2eda86a58c..ba720b48e0 100644
--- a/hw/usb.c
+++ b/hw/usb.c
@@ -49,6 +49,13 @@ void usb_attach(USBPort *port, USBDevice *dev)
     }
 }
 
+void usb_wakeup(USBDevice *dev)
+{
+    if (dev->remote_wakeup && dev->port && dev->port->ops->wakeup) {
+        dev->port->ops->wakeup(dev);
+    }
+}
+
 /**********************/
 
 /* generic USB device helpers (you are not forced to use them when