usb: class specific interface requests

Mass Storage Reset and Get Max LUN are class specific requests, but
they were not marked as such in hw/usb-msd.c, moved therefore
ClassInterfaceRequest and ClassInterfaceOutRequest from hw/usb-net.c
to hw/usb.h.
Furthermore there was a problem in hw/usb-ohci.c when using DEBUG
concerning systems where size_t is a 32 bit integer (printf resulted
in a segmentation fault).
Signed-off-by: NMax Reitz <max@tyndur.org>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/usb-msd.c

@@ -327,14 +327,12 @@ static int usb_msd_handle_control(USBDevice *dev, int request, int value,
         ret = 0;
         break;
         /* Class specific requests.  */
-    case (((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) | MassStorageReset):
-    case MassStorageReset:
+    case ClassInterfaceOutRequest | MassStorageReset:
         /* Reset state ready for the next CBW.  */
         s->mode = USB_MSDM_CBW;
         ret = 0;
         break;
-    case (((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) | GetMaxLun):
-    case GetMaxLun:
+    case ClassInterfaceRequest | GetMaxLun:
         data[0] = 0;
         ret = 1;
         break;

hw/usb-net.c

@@ -71,11 +71,6 @@ enum usbstring_idx {
 #define USB_DT_CS_INTERFACE		0x24
 #define USB_DT_CS_ENDPOINT		0x25
 
-#define ClassInterfaceRequest		\
-    ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
-#define ClassInterfaceOutRequest	\
-    ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
-
 #define USB_CDC_SEND_ENCAPSULATED_COMMAND	0x00
 #define USB_CDC_GET_ENCAPSULATED_RESPONSE	0x01
 #define USB_CDC_REQ_SET_LINE_CODING		0x20

hw/usb-ohci.c

@@ -907,7 +907,7 @@ static int ohci_service_td(OHCIState *ohci, struct ohci_ed *ed)
     flag_r = (td.flags & OHCI_TD_R) != 0;
 #ifdef DEBUG_PACKET
     DPRINTF(" TD @ 0x%.8x %" PRId64 " bytes %s r=%d cbp=0x%.8x be=0x%.8x\n",
-            addr, len, str, flag_r, td.cbp, td.be);
+            addr, (int64_t)len, str, flag_r, td.cbp, td.be);
 
     if (len > 0 && dir != OHCI_TD_DIR_IN) {
         DPRINTF("  data:");

hw/usb.h

@@ -91,6 +91,10 @@
 #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 #define EndpointOutRequest \
         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
+#define ClassInterfaceRequest \
+        ((USB_DIR_IN|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
+#define ClassInterfaceOutRequest \
+        ((USB_DIR_OUT|USB_TYPE_CLASS|USB_RECIP_INTERFACE)<<8)
 
 #define USB_REQ_GET_STATUS		0x00
 #define USB_REQ_CLEAR_FEATURE		0x01