1 files changed, 72 insertions, 0 deletions

diff --git a/firmware/usbstack/usb_charging_only.c b/firmware/usbstack/usb_charging_only.c
new file mode 100644
index 0000000000..501a7aa596
--- /dev/null
+++ b/firmware/usbstack/usb_charging_only.c
@@ -0,0 +1,72 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id:  $
+ *
+ * Copyright (C) 2008 by Frank Gevaerts
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "string.h"
+#include "system.h"
+#include "usb_core.h"
+#include "usb_drv.h"
+#include "kernel.h"
+
+//#define LOGF_ENABLE
+#include "logf.h"
+
+#ifdef USB_CHARGING_ONLY
+
+/* charging_only interface */
+static struct usb_interface_descriptor __attribute__((aligned(2)))
+                                interface_descriptor =
+{
+    .bLength            = sizeof(struct usb_interface_descriptor),
+    .bDescriptorType    = USB_DT_INTERFACE,
+    .bInterfaceNumber   = 0,
+    .bAlternateSetting  = 0,
+    .bNumEndpoints      = 0,
+    .bInterfaceClass    = USB_CLASS_VENDOR_SPEC,
+    .bInterfaceSubClass = 0,
+    .bInterfaceProtocol = 0,
+    .iInterface         = 0
+};
+
+
+static int usb_interface;
+
+int usb_charging_only_set_first_endpoint(int endpoint)
+{
+    /* The dummy charging_only driver doesn't need an endpoint pair */
+    return endpoint;
+}
+int usb_charging_only_set_first_interface(int interface)
+{
+    usb_interface = interface;
+    return interface + 1;
+}
+
+int usb_charging_only_get_config_descriptor(unsigned char *dest,int max_packet_size)
+{
+    (void)max_packet_size;
+    unsigned char *orig_dest = dest;
+
+    interface_descriptor.bInterfaceNumber=usb_interface;
+    memcpy(dest,&interface_descriptor,sizeof(struct usb_interface_descriptor));
+
+    dest+=sizeof(struct usb_interface_descriptor);
+
+    return (dest-orig_dest);
+}
+
+#endif /*USB_CHARGING_ONLY*/