usb: add USBBusOps->wakeup_endpoint Add usb bus op which is called whenever a usb endpoint becomes ready, so the host adapter emulation can react on that event. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/hw/usb.c b/hw/usb.c
index 0572547..e5b8f33 100644
--- a/hw/usb.c
+++ b/hw/usb.c

@@ -73,10 +73,14 @@
 void usb_wakeup(USBEndpoint *ep)
 {
     USBDevice *dev = ep->dev;
+    USBBus *bus = usb_bus_from_device(dev);
 
     if (dev->remote_wakeup && dev->port && dev->port->ops->wakeup) {
         dev->port->ops->wakeup(dev->port);
     }
+    if (bus->ops->wakeup_endpoint) {
+        bus->ops->wakeup_endpoint(bus, ep);
+    }
 }
 
 /**********************/

diff --git a/hw/usb.h b/hw/usb.h
index b2caa77..4470ea8 100644
--- a/hw/usb.h
+++ b/hw/usb.h

@@ -425,6 +425,7 @@
 struct USBBusOps {
     int (*register_companion)(USBBus *bus, USBPort *ports[],
                               uint32_t portcount, uint32_t firstport);
+    void (*wakeup_endpoint)(USBBus *bus, USBEndpoint *ep);
 };
 
 void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host);