veux: Merge common tree to veux

- Ref:
  https://github.com/xiaomi-sm6375-devs/android_device_xiaomi_sm6375-common

Signed-off-by: kleidione <kleidione@gmail.com>

5 files changed, 853 insertions, 0 deletions

diff --git a/gps/core/data-items/DataItemConcreteTypesBase.h b/gps/core/data-items/DataItemConcreteTypesBase.h
new file mode 100644
index 0000000..11a3cce
--- /dev/null
+++ b/gps/core/data-items/DataItemConcreteTypesBase.h
@@ -0,0 +1,555 @@
+/* Copyright (c) 2015-2017, 2020, 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 __DATAITEMCONCRETEBASETYPES__
+#define __DATAITEMCONCRETEBASETYPES__
+
+#include <string>
+#include <cstring>
+#include <sstream>
+#include <DataItemId.h>
+#include <IDataItemCore.h>
+#include <gps_extended_c.h>
+#include <inttypes.h>
+
+#define MAC_ADDRESS_LENGTH    6
+// MAC address length in bytes
+// QMI_LOC_SRN_MAC_ADDR_LENGTH_V02
+#define SRN_MAC_ADDRESS_LENGTH    6
+#define WIFI_SUPPLICANT_DEFAULT_STATE    0
+
+static constexpr char sDelimit = ':';
+
+namespace loc_core
+{
+using namespace std;
+
+enum NetworkType {
+    TYPE_MOBILE = 0,
+    TYPE_WIFI,
+    TYPE_ETHERNET,
+    TYPE_BLUETOOTH,
+    TYPE_MMS,
+    TYPE_SUPL,
+    TYPE_DUN,
+    TYPE_HIPRI,
+    TYPE_WIMAX,
+    TYPE_PROXY,
+    TYPE_UNKNOWN,
+};
+
+typedef struct NetworkInfoType
+{
+    // Unique network handle ID
+    uint64_t networkHandle;
+    // Type of network for corresponding network handle
+    NetworkType networkType;
+    NetworkInfoType() : networkHandle(NETWORK_HANDLE_UNKNOWN), networkType(TYPE_UNKNOWN) {}
+    NetworkInfoType(string strObj) {
+        size_t posDelimit = strObj.find(sDelimit);
+
+        if ( posDelimit != string::npos) {
+            int32_t type = TYPE_UNKNOWN;
+            string handleStr = strObj.substr(0, posDelimit);
+            string typeStr = strObj.substr(posDelimit + 1, strObj.length() - posDelimit - 1);
+            stringstream(handleStr) >> networkHandle;
+            stringstream(typeStr) >> type;
+            networkType = (NetworkType) type;
+        } else {
+            networkHandle = NETWORK_HANDLE_UNKNOWN;
+            networkType = TYPE_UNKNOWN;
+        }
+    }
+    bool operator== (const NetworkInfoType& other) {
+        return ((networkHandle == other.networkHandle) && (networkType == other.networkType));
+    }
+    string toString() {
+        string valueStr;
+        valueStr.clear ();
+        char nethandle [32];
+        memset (nethandle, 0, 32);
+        snprintf(nethandle, sizeof(nethandle), "%" PRIu64, networkHandle);
+        valueStr += string(nethandle);
+        valueStr += sDelimit;
+        char type [12];
+        memset (type, 0, 12);
+        snprintf (type, 12, "%u", networkType);
+        valueStr += string (type);
+        return valueStr;
+    }
+} NetworkInfoType;
+
+
+class AirplaneModeDataItemBase : public IDataItemCore  {
+public:
+    AirplaneModeDataItemBase(bool mode):
+        mMode(mode),
+        mId(AIRPLANEMODE_DATA_ITEM_ID) {}
+    virtual ~AirplaneModeDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mMode;
+
+protected:
+    DataItemId mId;
+};
+
+class ENHDataItemBase : public IDataItemCore {
+public:
+    ENHDataItemBase(bool enabled) :
+        mEnabled(enabled),
+        mId(ENH_DATA_ITEM_ID) {}
+    virtual ~ENHDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mEnabled;
+protected:
+    DataItemId mId;
+};
+
+class GPSStateDataItemBase : public IDataItemCore {
+public:
+    GPSStateDataItemBase(bool enabled) :
+        mEnabled(enabled),
+        mId(GPSSTATE_DATA_ITEM_ID) {}
+    virtual ~GPSStateDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mEnabled;
+protected:
+    DataItemId mId;
+};
+
+class NLPStatusDataItemBase : public IDataItemCore {
+public:
+    NLPStatusDataItemBase(bool enabled) :
+        mEnabled(enabled),
+        mId(NLPSTATUS_DATA_ITEM_ID) {}
+    virtual ~NLPStatusDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mEnabled;
+protected:
+    DataItemId mId;
+};
+
+class WifiHardwareStateDataItemBase : public IDataItemCore {
+public:
+    WifiHardwareStateDataItemBase(bool enabled) :
+        mEnabled(enabled),
+        mId(WIFIHARDWARESTATE_DATA_ITEM_ID) {}
+    virtual ~WifiHardwareStateDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mEnabled;
+protected:
+    DataItemId mId;
+};
+
+class ScreenStateDataItemBase : public IDataItemCore {
+public:
+    ScreenStateDataItemBase(bool state) :
+        mState(state),
+        mId(SCREEN_STATE_DATA_ITEM_ID) {}
+    virtual ~ScreenStateDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mState;
+protected:
+    DataItemId mId;
+};
+
+class PowerConnectStateDataItemBase : public IDataItemCore {
+public:
+    PowerConnectStateDataItemBase(bool state) :
+        mState(state),
+        mId(POWER_CONNECTED_STATE_DATA_ITEM_ID) {}
+    virtual ~PowerConnectStateDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mState;
+protected:
+    DataItemId mId;
+};
+
+class TimeZoneChangeDataItemBase : public IDataItemCore {
+public:
+    TimeZoneChangeDataItemBase(int64_t currTimeMillis, int32_t rawOffset, int32_t dstOffset) :
+        mCurrTimeMillis (currTimeMillis),
+        mRawOffsetTZ (rawOffset),
+        mDstOffsetTZ (dstOffset),
+        mId(TIMEZONE_CHANGE_DATA_ITEM_ID) {}
+    virtual ~TimeZoneChangeDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    int64_t mCurrTimeMillis;
+    int32_t mRawOffsetTZ;
+    int32_t mDstOffsetTZ;
+protected:
+    DataItemId mId;
+};
+
+class TimeChangeDataItemBase : public IDataItemCore {
+public:
+    TimeChangeDataItemBase(int64_t currTimeMillis, int32_t rawOffset, int32_t dstOffset) :
+        mCurrTimeMillis (currTimeMillis),
+        mRawOffsetTZ (rawOffset),
+        mDstOffsetTZ (dstOffset),
+        mId(TIME_CHANGE_DATA_ITEM_ID) {}
+    virtual ~TimeChangeDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    int64_t mCurrTimeMillis;
+    int32_t mRawOffsetTZ;
+    int32_t mDstOffsetTZ;
+protected:
+    DataItemId mId;
+};
+
+class ShutdownStateDataItemBase : public IDataItemCore {
+public:
+    ShutdownStateDataItemBase(bool state) :
+        mState (state),
+        mId(SHUTDOWN_STATE_DATA_ITEM_ID) {}
+    virtual ~ShutdownStateDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mState;
+protected:
+    DataItemId mId;
+};
+
+class AssistedGpsDataItemBase : public IDataItemCore {
+public:
+    AssistedGpsDataItemBase(bool enabled) :
+        mEnabled(enabled),
+        mId(ASSISTED_GPS_DATA_ITEM_ID) {}
+    virtual ~AssistedGpsDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    bool mEnabled;
+protected:
+    DataItemId mId;
+};
+
+class NetworkInfoDataItemBase : public IDataItemCore {
+public:
+    NetworkInfoDataItemBase(
+    NetworkType initialType, int32_t type, string typeName, string subTypeName,
+    bool available, bool connected, bool roaming, uint64_t networkHandle, string apn):
+            mAllTypes(typeToAllTypes(initialType)),
+            mType(type),
+            mTypeName(typeName),
+            mSubTypeName(subTypeName),
+            mAvailable(available),
+            mConnected(connected),
+            mRoaming(roaming),
+            mNetworkHandle(networkHandle),
+            mId(NETWORKINFO_DATA_ITEM_ID), mApn(apn) {
+                mAllNetworkHandles[0].networkHandle = networkHandle;
+                mAllNetworkHandles[0].networkType = initialType;
+            }
+    virtual ~NetworkInfoDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+    inline virtual NetworkType getType(void) const {
+        return (NetworkType)mType;
+    }
+    inline uint64_t getAllTypes() { return mAllTypes; }
+    inline NetworkInfoType* getNetworkHandle() {
+        return &mAllNetworkHandles[0];
+    }
+    // Data members
+    uint64_t mAllTypes;
+    int32_t mType;
+    string mTypeName;
+    string mSubTypeName;
+    bool mAvailable;
+    bool mConnected;
+    bool mRoaming;
+    NetworkInfoType mAllNetworkHandles[MAX_NETWORK_HANDLES];
+    uint64_t mNetworkHandle;
+    string mApn;
+protected:
+    DataItemId mId;
+    inline uint64_t typeToAllTypes(NetworkType type) {
+        return (type >= TYPE_UNKNOWN || type < TYPE_MOBILE) ?  0 : (1<<type);
+    }
+};
+
+class ServiceStatusDataItemBase : public IDataItemCore {
+public:
+    ServiceStatusDataItemBase(int32_t serviceState) :
+        mServiceState (serviceState),
+        mId(SERVICESTATUS_DATA_ITEM_ID) {}
+    virtual ~ServiceStatusDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    int32_t mServiceState;
+protected:
+    DataItemId mId;
+};
+
+class ModelDataItemBase : public IDataItemCore {
+public:
+    ModelDataItemBase(const string & name) :
+        mModel (name),
+        mId(MODEL_DATA_ITEM_ID) {}
+    virtual ~ModelDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    string mModel;
+protected:
+    DataItemId mId;
+};
+
+class ManufacturerDataItemBase : public IDataItemCore {
+public:
+    ManufacturerDataItemBase(const string & name) :
+        mManufacturer (name),
+        mId(MANUFACTURER_DATA_ITEM_ID) {}
+    virtual ~ManufacturerDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    string mManufacturer;
+protected:
+    DataItemId mId;
+};
+
+class RilServiceInfoDataItemBase : public IDataItemCore {
+public:
+    inline RilServiceInfoDataItemBase() :
+            mData(nullptr), mId(RILSERVICEINFO_DATA_ITEM_ID) {}
+    inline virtual ~RilServiceInfoDataItemBase() { if (nullptr != mData) free(mData); }
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+    inline RilServiceInfoDataItemBase(const RilServiceInfoDataItemBase& peer) :
+            RilServiceInfoDataItemBase() {
+        peer.setPeerData(*this);
+    }
+    inline virtual bool operator==(const RilServiceInfoDataItemBase& other) const {
+        return other.mData == mData;
+    }
+    inline virtual void setPeerData(RilServiceInfoDataItemBase& /*peer*/) const {}
+    void* mData;
+protected:
+    DataItemId mId;
+};
+
+class RilCellInfoDataItemBase : public IDataItemCore {
+public:
+    inline RilCellInfoDataItemBase() :
+            mData(nullptr), mId(RILCELLINFO_DATA_ITEM_ID) {}
+    inline virtual ~RilCellInfoDataItemBase() { if (nullptr != mData) free(mData); }
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+    inline RilCellInfoDataItemBase(const RilCellInfoDataItemBase& peer) :
+            RilCellInfoDataItemBase() {
+        peer.setPeerData(*this);
+    }
+    inline virtual bool operator==(const RilCellInfoDataItemBase& other) const {
+        return other.mData == mData;
+    }
+    inline virtual void setPeerData(RilCellInfoDataItemBase& /*peer*/) const {}
+    void* mData;
+protected:
+    DataItemId mId;
+};
+
+class WifiSupplicantStatusDataItemBase : public IDataItemCore {
+public:
+    WifiSupplicantStatusDataItemBase() :
+        mState((WifiSupplicantState)WIFI_SUPPLICANT_DEFAULT_STATE),
+        mApMacAddressValid(false),
+        mWifiApSsidValid(false),
+        mId(WIFI_SUPPLICANT_STATUS_DATA_ITEM_ID) {
+            memset (&mApMacAddress, 0, sizeof (mApMacAddress));
+            mWifiApSsid.clear();
+        }
+    virtual ~WifiSupplicantStatusDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+    // Data members
+    typedef enum WifiSupplicantState {
+        DISCONNECTED,
+        INTERFACE_DISABLED,
+        INACTIVE,
+        SCANNING,
+        AUTHENTICATING,
+        ASSOCIATING,
+        ASSOCIATED,
+        FOUR_WAY_HANDSHAKE,
+        GROUP_HANDSHAKE,
+        COMPLETED,
+        DORMANT,
+        UNINITIALIZED,
+        INVALID
+    } WifiSupplicantState;
+    /* Represents whether access point attach state*/
+    WifiSupplicantState mState;
+    /* Represents info on whether ap mac address is valid */
+    bool mApMacAddressValid;
+    /* Represents mac address of the wifi access point*/
+    uint8_t mApMacAddress[MAC_ADDRESS_LENGTH];
+    /* Represents info on whether ap SSID is valid */
+    bool mWifiApSsidValid;
+    /* Represents Wifi SSID string*/
+    string mWifiApSsid;
+protected:
+    DataItemId mId;
+};
+
+class TacDataItemBase : public IDataItemCore {
+public:
+    TacDataItemBase(const string & name) :
+        mValue (name),
+        mId(TAC_DATA_ITEM_ID) {}
+    virtual ~TacDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    string mValue;
+protected:
+    DataItemId mId;
+};
+
+class MccmncDataItemBase : public IDataItemCore {
+public:
+    MccmncDataItemBase(const string & name) :
+        mValue(name),
+        mId(MCCMNC_DATA_ITEM_ID) {}
+    virtual ~MccmncDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+// Data members
+    string mValue;
+protected:
+    DataItemId mId;
+};
+
+class SrnDeviceScanDetailsDataItemBase : public IDataItemCore {
+public:
+    SrnDeviceScanDetailsDataItemBase(DataItemId Id) :
+        mValidSrnData(false),
+        mApSrnRssi(-1),
+        mApSrnTimestamp(0),
+        mRequestTimestamp(0),
+        mReceiveTimestamp(0),
+        mErrorCause(-1),
+        mId(Id) {}
+    virtual ~SrnDeviceScanDetailsDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+    // Data members common to all SRN tech types
+    /* Represents info on whether SRN data is valid (no error)*/
+    bool mValidSrnData;
+    /* SRN device RSSI reported */
+    int32_t mApSrnRssi;
+    /* MAC adress of SRN device */
+    uint8_t mApSrnMacAddress[SRN_MAC_ADDRESS_LENGTH];
+    /* UTC timestamp at which the scan was requested.for this SRN device*/
+    int64_t mApSrnTimestamp;
+    /* UTC timestamp at which the scan was started. */
+    int64_t mRequestTimestamp;
+    /* UTC timestamp at which the scan was received.*/
+    int64_t mReceiveTimestamp;
+    /* Reason for the error/failure if SRN details are not valid */
+    int32_t mErrorCause;
+protected:
+    DataItemId mId;
+};
+
+class BtDeviceScanDetailsDataItemBase : public SrnDeviceScanDetailsDataItemBase {
+
+public:
+    BtDeviceScanDetailsDataItemBase() :
+        SrnDeviceScanDetailsDataItemBase(BT_SCAN_DATA_ITEM_ID) {}
+    virtual ~BtDeviceScanDetailsDataItemBase() {}
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+};
+
+class BtLeDeviceScanDetailsDataItemBase : public SrnDeviceScanDetailsDataItemBase {
+
+public:
+    BtLeDeviceScanDetailsDataItemBase() :
+        SrnDeviceScanDetailsDataItemBase(BTLE_SCAN_DATA_ITEM_ID) {}
+    virtual ~BtLeDeviceScanDetailsDataItemBase() {}
+    virtual void stringify(string& /*valueStr*/) {}
+    virtual int32_t copy(IDataItemCore* /*src*/, bool* /*dataItemCopied = NULL*/) {return 1;}
+};
+
+class BatteryLevelDataItemBase : public IDataItemCore {
+public:
+    inline BatteryLevelDataItemBase(uint8_t batteryPct) :
+            mBatteryPct(batteryPct), mId(BATTERY_LEVEL_DATA_ITEM_ID) {}
+    inline ~BatteryLevelDataItemBase() {}
+    inline virtual DataItemId getId() { return mId; }
+// Data members
+    uint8_t mBatteryPct;
+protected:
+    DataItemId mId;
+};
+
+} // namespace loc_core
+
+#endif //__DATAITEMCONCRETEBASETYPES__
diff --git a/gps/core/data-items/DataItemId.h b/gps/core/data-items/DataItemId.h
new file mode 100644
index 0000000..1661be6
--- /dev/null
+++ b/gps/core/data-items/DataItemId.h
@@ -0,0 +1,79 @@
+/* Copyright (c) 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 __DATAITEMID_H__
+#define __DATAITEMID_H__
+
+/**
+ * Enumeration of Data Item types
+ * When add/remove/update changes are made to Data Items, this file needs to be updated
+ * accordingly
+ */
+typedef enum e_DataItemId {
+    INVALID_DATA_ITEM_ID = -1,
+    // 0 - 4
+    AIRPLANEMODE_DATA_ITEM_ID,
+    ENH_DATA_ITEM_ID,
+    GPSSTATE_DATA_ITEM_ID,
+    NLPSTATUS_DATA_ITEM_ID,
+    WIFIHARDWARESTATE_DATA_ITEM_ID,
+    // 5 - 9
+    NETWORKINFO_DATA_ITEM_ID,
+    RILVERSION_DATA_ITEM_ID,
+    RILSERVICEINFO_DATA_ITEM_ID,
+    RILCELLINFO_DATA_ITEM_ID,
+    SERVICESTATUS_DATA_ITEM_ID,
+    // 10 - 14
+    MODEL_DATA_ITEM_ID,
+    MANUFACTURER_DATA_ITEM_ID,
+    VOICECALL_DATA_ITEM,
+    ASSISTED_GPS_DATA_ITEM_ID,
+    SCREEN_STATE_DATA_ITEM_ID,
+    // 15 - 19
+    POWER_CONNECTED_STATE_DATA_ITEM_ID,
+    TIMEZONE_CHANGE_DATA_ITEM_ID,
+    TIME_CHANGE_DATA_ITEM_ID,
+    WIFI_SUPPLICANT_STATUS_DATA_ITEM_ID,
+    SHUTDOWN_STATE_DATA_ITEM_ID,
+    // 20 - 24
+    TAC_DATA_ITEM_ID,
+    MCCMNC_DATA_ITEM_ID,
+    BTLE_SCAN_DATA_ITEM_ID,
+    BT_SCAN_DATA_ITEM_ID,
+    OEM_GTP_UPLOAD_TRIGGER_READY_ITEM_ID,
+
+    MAX_DATA_ITEM_ID,
+
+    // 26 -
+    BATTERY_LEVEL_DATA_ITEM_ID,
+
+    MAX_DATA_ITEM_ID_1_1,
+} DataItemId;
+
+#endif // #ifndef __DATAITEMID_H__
diff --git a/gps/core/data-items/DataItemsFactoryProxy.cpp b/gps/core/data-items/DataItemsFactoryProxy.cpp
new file mode 100644
index 0000000..10f73f4
--- /dev/null
+++ b/gps/core/data-items/DataItemsFactoryProxy.cpp
@@ -0,0 +1,82 @@
+/* Copyright (c) 2017-2020, 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.
+ *
+ */
+#define LOG_TAG "DataItemsFactoryProxy"
+
+#include <dlfcn.h>
+#include <DataItemId.h>
+#include <IDataItemCore.h>
+#include <DataItemsFactoryProxy.h>
+#include <loc_pla.h>
+#include <log_util.h>
+#include "loc_misc_utils.h"
+
+namespace loc_core
+{
+void* DataItemsFactoryProxy::dataItemLibHandle = NULL;
+get_concrete_data_item_fn* DataItemsFactoryProxy::getConcreteDIFunc = NULL;
+
+IDataItemCore* DataItemsFactoryProxy::createNewDataItem(DataItemId id)
+{
+    IDataItemCore *mydi = nullptr;
+
+    if (NULL != getConcreteDIFunc) {
+        mydi = (*getConcreteDIFunc)(id);
+    }
+    else {
+        getConcreteDIFunc = (get_concrete_data_item_fn * )
+                dlGetSymFromLib(dataItemLibHandle, DATA_ITEMS_LIB_NAME, DATA_ITEMS_GET_CONCRETE_DI);
+
+        if (NULL != getConcreteDIFunc) {
+            LOC_LOGd("Loaded function %s : %p", DATA_ITEMS_GET_CONCRETE_DI, getConcreteDIFunc);
+            mydi = (*getConcreteDIFunc)(id);
+        }
+        else {
+            // dlysm failed.
+            const char * err = dlerror();
+            if (NULL == err)
+            {
+                err = "Unknown";
+            }
+            LOC_LOGe("failed to find symbol %s; error=%s", DATA_ITEMS_GET_CONCRETE_DI, err);
+        }
+    }
+    return mydi;
+}
+
+void DataItemsFactoryProxy::closeDataItemLibraryHandle()
+{
+    if (NULL != dataItemLibHandle) {
+        dlclose(dataItemLibHandle);
+        dataItemLibHandle = NULL;
+    }
+}
+
+} // namespace loc_core
+
+
diff --git a/gps/core/data-items/DataItemsFactoryProxy.h b/gps/core/data-items/DataItemsFactoryProxy.h
new file mode 100644
index 0000000..cfd447d
--- /dev/null
+++ b/gps/core/data-items/DataItemsFactoryProxy.h
@@ -0,0 +1,55 @@
+/* Copyright (c) 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 __DATAITEMFACTORYBASE__
+#define __DATAITEMFACTORYBASE__
+
+#include <DataItemId.h>
+#include <IDataItemCore.h>
+
+namespace loc_core
+{
+
+#define DATA_ITEMS_LIB_NAME "libdataitems.so"
+#define DATA_ITEMS_GET_CONCRETE_DI "getConcreteDataItem"
+
+typedef IDataItemCore * (get_concrete_data_item_fn)(DataItemId);
+
+class DataItemsFactoryProxy {
+public:
+    static IDataItemCore* createNewDataItem(DataItemId id);
+    static void closeDataItemLibraryHandle();
+    static void *dataItemLibHandle;
+    static get_concrete_data_item_fn *getConcreteDIFunc;
+};
+
+} // namespace loc_core
+
+#endif //__DATAITEMFACTORYBASE__
+
diff --git a/gps/core/data-items/IDataItemCore.h b/gps/core/data-items/IDataItemCore.h
new file mode 100644
index 0000000..6084c92
--- /dev/null
+++ b/gps/core/data-items/IDataItemCore.h
@@ -0,0 +1,82 @@
+/* Copyright (c) 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 __IDATAITEMCORE_H__
+#define __IDATAITEMCORE_H__
+
+#include <string>
+#include <DataItemId.h>
+
+namespace loc_core {
+
+using namespace std;
+
+/**
+ * @brief IDataItemCore interface.
+ * @details IDataItemCore interface.
+ *
+ */
+class IDataItemCore {
+public:
+    /**
+     * @brief Gets Data item id.
+     * @details Gets Data item id.
+     * @return Data item id.
+     */
+    virtual DataItemId getId () = 0;
+
+    /**
+     * @brief Stringify.
+     * @details Stringify.
+     *
+     * @param valueStr Reference to string.
+     */
+    virtual void stringify (string & valueStr) = 0;
+
+    /**
+     * @brief copy.
+     * @details copy.
+     *
+     * @param src Where to copy from.
+     * @param dataItemCopied Boolean flag indicated whether or not copied.
+     *
+     * @return Zero for success or non zero for failure.
+     */
+    virtual int32_t copy (IDataItemCore * src, bool *dataItemCopied = nullptr) = 0;
+
+    /**
+     * @brief Destructor.
+     * @details Destructor.
+     */
+    virtual ~IDataItemCore () {}
+};
+
+} // namespace loc_core
+
+#endif // __IDATAITEMCORE_H__