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diff --git a/gps/utils/loc_nmea.h b/gps/utils/loc_nmea.h
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+++ b/gps/utils/loc_nmea.h
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+/* Copyright (c) 2012-2013, 2015-2017 The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef LOC_ENG_NMEA_H
+#define LOC_ENG_NMEA_H
+
+#include <gps_extended.h>
+#include <vector>
+#include <string>
+#define NMEA_SENTENCE_MAX_LENGTH 200
+
+void loc_nmea_generate_sv(const GnssSvNotification &svNotify,
+                              std::vector<std::string> &nmeaArraystr);
+
+void loc_nmea_generate_pos(const UlpLocation &location,
+                               const GpsLocationExtended &locationExtended,
+                               unsigned char generate_nmea,
+                               std::vector<std::string> &nmeaArraystr);
+
+#define DEBUG_NMEA_MINSIZE 6
+#define DEBUG_NMEA_MAXSIZE 4096
+inline bool loc_nmea_is_debug(const char* nmea, int length) {
+    return ((nullptr != nmea) &&
+            (length >= DEBUG_NMEA_MINSIZE) && (length <= DEBUG_NMEA_MAXSIZE) &&
+            (nmea[0] == '$') && (nmea[1] == 'P') && (nmea[2] == 'Q') && (nmea[3] == 'W'));
+}
+
+#endif // LOC_ENG_NMEA_H