Added gps library code.
diff --git a/gps/utils/log_util.h b/gps/utils/log_util.h
new file mode 100644
index 0000000..8ff6b5a
--- /dev/null
+++ b/gps/utils/log_util.h
@@ -0,0 +1,181 @@
+/* Copyright (c) 2011-2014 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 __LOG_UTIL_H__
+#define __LOG_UTIL_H__
+
+#ifndef USE_GLIB
+#include <utils/Log.h>
+#endif /* USE_GLIB */
+
+#ifdef USE_GLIB
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#ifndef LOG_TAG
+#define LOG_TAG "GPS_UTILS"
+
+#endif // LOG_TAG
+
+#endif /* USE_GLIB */
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/*=============================================================================
+ *
+ * LOC LOGGER TYPE DECLARATION
+ *
+ *============================================================================*/
+/* LOC LOGGER */
+typedef struct loc_logger_s
+{
+ unsigned long DEBUG_LEVEL;
+ unsigned long TIMESTAMP;
+} loc_logger_s_type;
+
+/*=============================================================================
+ *
+ * EXTERNAL DATA
+ *
+ *============================================================================*/
+extern loc_logger_s_type loc_logger;
+
+// Logging Improvements
+extern const char *loc_logger_boolStr[];
+
+extern const char *boolStr[];
+extern const char VOID_RET[];
+extern const char FROM_AFW[];
+extern const char TO_MODEM[];
+extern const char FROM_MODEM[];
+extern const char TO_AFW[];
+extern const char EXIT_TAG[];
+extern const char ENTRY_TAG[];
+/*=============================================================================
+ *
+ * MODULE EXPORTED FUNCTIONS
+ *
+ *============================================================================*/
+extern void loc_logger_init(unsigned long debug, unsigned long timestamp);
+extern char* get_timestamp(char* str, unsigned long buf_size);
+
+#ifndef DEBUG_DMN_LOC_API
+
+/* LOGGING MACROS */
+/*loc_logger.DEBUG_LEVEL is initialized to 0xff in loc_cfg.cpp
+ if that value remains unchanged, it means gps.conf did not
+ provide a value and we default to the initial value to use
+ Android's logging levels*/
+#define IF_LOC_LOGE if((loc_logger.DEBUG_LEVEL >= 1) && (loc_logger.DEBUG_LEVEL <= 5))
+
+#define IF_LOC_LOGW if((loc_logger.DEBUG_LEVEL >= 2) && (loc_logger.DEBUG_LEVEL <= 5))
+
+#define IF_LOC_LOGI if((loc_logger.DEBUG_LEVEL >= 3) && (loc_logger.DEBUG_LEVEL <= 5))
+
+#define IF_LOC_LOGD if((loc_logger.DEBUG_LEVEL >= 4) && (loc_logger.DEBUG_LEVEL <= 5))
+
+#define IF_LOC_LOGV if((loc_logger.DEBUG_LEVEL >= 5) && (loc_logger.DEBUG_LEVEL <= 5))
+
+#define LOC_LOGE(...) \
+IF_LOC_LOGE { ALOGE("E/" __VA_ARGS__); } \
+else if (loc_logger.DEBUG_LEVEL == 0xff) { ALOGE("E/" __VA_ARGS__); }
+
+#define LOC_LOGW(...) \
+IF_LOC_LOGW { ALOGE("W/" __VA_ARGS__); } \
+else if (loc_logger.DEBUG_LEVEL == 0xff) { ALOGW("W/" __VA_ARGS__); }
+
+#define LOC_LOGI(...) \
+IF_LOC_LOGI { ALOGE("I/" __VA_ARGS__); } \
+else if (loc_logger.DEBUG_LEVEL == 0xff) { ALOGI("I/" __VA_ARGS__); }
+
+#define LOC_LOGD(...) \
+IF_LOC_LOGD { ALOGE("D/" __VA_ARGS__); } \
+else if (loc_logger.DEBUG_LEVEL == 0xff) { ALOGD("D/" __VA_ARGS__); }
+
+#define LOC_LOGV(...) \
+IF_LOC_LOGV { ALOGE("V/" __VA_ARGS__); } \
+else if (loc_logger.DEBUG_LEVEL == 0xff) { ALOGV("V/" __VA_ARGS__); }
+
+#else /* DEBUG_DMN_LOC_API */
+
+#define LOC_LOGE(...) ALOGE("E/" __VA_ARGS__)
+
+#define LOC_LOGW(...) ALOGW("W/" __VA_ARGS__)
+
+#define LOC_LOGI(...) ALOGI("I/" __VA_ARGS__)
+
+#define LOC_LOGD(...) ALOGD("D/" __VA_ARGS__)
+
+#define LOC_LOGV(...) ALOGV("V/" __VA_ARGS__)
+
+#endif /* DEBUG_DMN_LOC_API */
+
+/*=============================================================================
+ *
+ * LOGGING IMPROVEMENT MACROS
+ *
+ *============================================================================*/
+#define LOG_(LOC_LOG, ID, WHAT, SPEC, VAL) \
+ do { \
+ if (loc_logger.TIMESTAMP) { \
+ char ts[32]; \
+ LOC_LOG("[%s] %s %s line %d " #SPEC, \
+ get_timestamp(ts, sizeof(ts)), ID, WHAT, __LINE__, VAL); \
+ } else { \
+ LOC_LOG("%s %s line %d " #SPEC, \
+ ID, WHAT, __LINE__, VAL); \
+ } \
+ } while(0)
+
+
+#define LOG_I(ID, WHAT, SPEC, VAL) LOG_(LOC_LOGI, ID, WHAT, SPEC, VAL)
+#define LOG_V(ID, WHAT, SPEC, VAL) LOG_(LOC_LOGV, ID, WHAT, SPEC, VAL)
+
+#define ENTRY_LOG() LOG_V(ENTRY_TAG, __func__, %s, "")
+#define EXIT_LOG(SPEC, VAL) LOG_V(EXIT_TAG, __func__, SPEC, VAL)
+
+
+// Used for logging callflow from Android Framework
+#define ENTRY_LOG_CALLFLOW() LOG_I(FROM_AFW, __func__, %s, "")
+// Used for logging callflow to Modem
+#define EXIT_LOG_CALLFLOW(SPEC, VAL) LOG_I(TO_MODEM, __func__, SPEC, VAL)
+// Used for logging callflow from Modem(TO_MODEM, __func__, %s, "")
+#define MODEM_LOG_CALLFLOW(SPEC, VAL) LOG_I(FROM_MODEM, __func__, SPEC, VAL)
+// Used for logging callflow to Android Framework
+#define CALLBACK_LOG_CALLFLOW(CB, SPEC, VAL) LOG_I(TO_AFW, CB, SPEC, VAL)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __LOG_UTIL_H__