From 698ea8e86e23ba6899bc7b33a591308e4de9881c Mon Sep 17 00:00:00 2001
From: Stacey Sheldon <stac@solidgoldbomb.org>
Date: Wed, 16 May 2012 23:37:39 -0400
Subject: [PATCH] usb util: Add common utility functions for USB descriptors

Make a home for generic functions related to USB.
---
 flight/PiOS/Common/pios_usb_util.c | 42 ++++++++++++++++++++++++++++++
 flight/PiOS/inc/pios_usb_util.h    | 38 +++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 flight/PiOS/Common/pios_usb_util.c
 create mode 100644 flight/PiOS/inc/pios_usb_util.h

diff --git a/flight/PiOS/Common/pios_usb_util.c b/flight/PiOS/Common/pios_usb_util.c
new file mode 100644
index 000000000..4bbf98d23
--- /dev/null
+++ b/flight/PiOS/Common/pios_usb_util.c
@@ -0,0 +1,42 @@
+/**
+ ******************************************************************************
+ * @addtogroup PIOS PIOS Core hardware abstraction layer
+ * @{
+ * @addtogroup PIOS_USB_UTIL USB utility functions
+ * @brief USB utility functions
+ * @{
+ *
+ * @file       pios_usb_util.c
+ * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
+ * @brief      USB utility functions
+ * @see        The GNU Public License (GPL) Version 3
+ *
+ *****************************************************************************/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "pios_usb_util.h"
+
+uint8_t * PIOS_USB_UTIL_AsciiToUtf8(uint8_t * dst, uint8_t * src, uint16_t srclen)
+{
+	for (uint8_t i = 0; i < srclen; i++) {
+		*dst = *src;
+		dst += 2;
+		src += 1;
+	}
+
+	return dst;
+}
diff --git a/flight/PiOS/inc/pios_usb_util.h b/flight/PiOS/inc/pios_usb_util.h
new file mode 100644
index 000000000..111b49239
--- /dev/null
+++ b/flight/PiOS/inc/pios_usb_util.h
@@ -0,0 +1,38 @@
+/**
+ ******************************************************************************
+ * @addtogroup PIOS PIOS Core hardware abstraction layer
+ * @{
+ * @addtogroup PIOS_USB_UTIL USB utility functions
+ * @brief USB utility functions
+ * @{
+ *
+ * @file       pios_usb_util.h
+ * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
+ * @brief      USB utility functions
+ * @see        The GNU Public License (GPL) Version 3
+ *
+ *****************************************************************************/
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef PIOS_USB_UTIL_H
+#define PIOS_USB_UTIL_H
+
+#include <stdint.h>		/* uint8_t */
+
+uint8_t * PIOS_USB_UTIL_AsciiToUtf8(uint8_t * dst, uint8_t * src, uint16_t srclen);
+
+#endif	/* PIOS_USB_UTIL_H */