Enable high speed support for USB device framework and usbtty
This patch adds the support for high speed in usb device framework and usbtty
driver. This feature has been kept within a macro CONFIG_USBD_HS, so the board
configuration files have to define this macro to enable high speed support.
Along with that specific peripheral drivers also need to define a function to
let the framework know that the enumeration has happened at high speed.
This function prototype is "int is_usbd_high_speed(void)"
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
diff --git a/drivers/usb/gadget/ep0.c b/drivers/usb/gadget/ep0.c
index 22499d3..aa8f916 100644
--- a/drivers/usb/gadget/ep0.c
+++ b/drivers/usb/gadget/ep0.c
@@ -338,12 +338,27 @@
}
break;
case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER:
+#if defined(CONFIG_USBD_HS)
{
- /* If a USB device supports both a full speed and low speed operation
- * we must send a Device_Qualifier descriptor here
- */
- return -1;
+ struct usb_qualifier_descriptor *qualifier_descriptor =
+ device->qualifier_descriptor;
+
+ if (!qualifier_descriptor)
+ return -1;
+
+ /* copy descriptor for this device */
+ copy_config(urb, qualifier_descriptor,
+ sizeof(struct usb_qualifier_descriptor),
+ max);
+
}
+ dbg_ep0(3, "copied qualifier descriptor, actual_length: 0x%x",
+ urb->actual_length);
+#else
+ return -1;
+#endif
+ break;
+
default:
return -1;
}