usb core: use qdev for -usbdevice

This patchs adds infrastructure to handle -usbdevice via qdev callbacks.
USBDeviceInfo gets a name field (for the -usbdevice driver name) and a
callback for -usbdevice parameter parsing.

The new usbdevice_create() function walks the qdev driver list and looks
for a usb driver with a matching name.  When a parameter parsing
callback is present it is called, otherwise the device is created via
usb_create_simple().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/hw/usb.h b/hw/usb.h
index be4fcf6..62362a7 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -183,6 +183,10 @@ struct USBDeviceInfo {
      * Returns length or one of the USB_RET_ codes.
      */
     int (*handle_data)(USBDevice *dev, USBPacket *p);
+
+    /* handle legacy -usbdevice command line options */
+    const char *usbdevice_name;
+    USBDevice *(*usbdevice_init)(const char *params);
 };
 
 typedef void (*usb_attachfn)(USBPort *port, USBDevice *dev);
@@ -309,6 +313,7 @@ void usb_qdev_register(USBDeviceInfo *info);
 void usb_qdev_register_many(USBDeviceInfo *info);
 USBDevice *usb_create(USBBus *bus, const char *name);
 USBDevice *usb_create_simple(USBBus *bus, const char *name);
+USBDevice *usbdevice_create(const char *cmdline);
 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
                        usb_attachfn attach);
 void usb_unregister_port(USBBus *bus, USBPort *port);