diff --git a/gnss/1.0/IGnssConfiguration.hal b/gnss/1.0/IGnssConfiguration.hal
new file mode 100644
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+++ b/gnss/1.0/IGnssConfiguration.hal
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.gnss@1.0;
+
+/*
+ * Interface for passing GNSS configuration info from platform to HAL.
+ */
+interface IGnssConfiguration {
+    /*
+     * Enum which holds the bit masks for SUPL_MODE configuration parameter.
+     */
+    enum SuplMode : uint8_t {
+        /* Mobile Station Based */
+        MSB = 0x01,
+
+        /* Mobile Station Assisted */
+        MSA = 0x02
+    };
+
+    /*
+     * Enum which holds the bit masks for GPS_LOCK configuration parameter.
+     */
+    enum GpsLock : uint8_t {
+        /* Lock Mobile Originated GPS functionalitues. */
+        MO    =  0x01,
+
+        /* Lock Network initiated GPS functionalities. */
+        NI    =  0x02
+    };
+
+    /*
+     * Enum that hold the bit masks for various LTE Positioning Profile settings (LPP_PROFILE
+     * configuration parameter). If none of the bits in the enum are set, the default setting is
+     * Radio Resource Location Protocol(RRLP).
+     */
+    enum LppProfile : uint8_t {
+        /* Enable LTE Positioning Protocol user plane */
+        USER_PLANE          = 0x01,
+
+        /* Enable LTE Positioning Protocol Control plane */
+        CONTROL_PLANE       = 0x02
+    };
+
+    /*
+     * Enum which holds the bit masks for A_GLONASS_POS_PROTOCOL_SELECT
+     * configuration parameter.
+     */
+    enum GlonassPosProtocol : uint8_t {
+        /* Radio Resource Control(RRC) control-plane. */
+        RRC_CPLANE                  = 0x01,
+
+        /* Radio Resource Location user-plane. */
+        RRLP_CPLANE                 = 0x02,
+
+        /* LTE Positioning Protocol User plane */
+        LPP_UPLANE                  = 0x04
+    };
+
+    /*
+     * IMPORTANT: GNSS HAL must expect the below methods to be called multiple
+     * times. They can be called even when GnssLocationProvider is already
+     * constructed and enabled. GNSS HAL must maintain the existing requests
+     * for various callbacks regardless the change in configuration data.
+     */
+
+     /*
+      * This method enables or disables emergency SUPL.
+      *
+      * @param enabled True if emergency SUPL is to be enabled.
+      *
+      * @return success True if operation was successful.
+      */
+     setSuplEs(bool enabled) generates (bool success);
+
+     /*
+      * This method sets the SUPL version requested by Carrier. The GNSS HAL
+      * must use this version of the SUPL protocol if supported.
+      *
+      * @param version SUPL version requested by carrier. This is a bit mask
+      * with bits 0:7 representing a service indicator field, bits 8:15
+      * representing the minor version and bits 16:23 representing the
+      * major version.
+      *
+      * @return success True if operation was successful.
+      */
+     setSuplVersion(uint32_t version) generates (bool success);
+
+     /*
+      * This method sets the SUPL mode.
+      *
+      * @param mode Bit mask that specifies the SUPL mode which is set with the SuplMode enum.
+      *
+      * @return success True if operation was successful.
+      */
+     setSuplMode(uint8_t mode) generates (bool success);
+
+     /*
+      * This setting configures how GPS functionalities should be locked when
+      * user turns off GPS On setting.
+      *
+      * @param lock Bitmask that specifies the GPS functionalities to be be
+      * locked as per the GpsLock enum.
+      *
+      * @return success True if operation was successful.
+      */
+     setGpsLock(uint8_t lock) generates (bool success);
+
+     /*
+      * This method sets the LTE Positioning Profile configuration.
+      *
+      * @param lppProfile Bitmask that specifies the LTE Positioning Profile
+      * configuration to be set as per the LppProfile enum.
+      *
+      * @return success True if operation was successful.
+      */
+     setLppProfile(uint8_t lppProfile) generates (bool success);
+
+     /*
+      * This method selects positioning protocol on A-Glonass system.
+      *
+      * @param protocol Bitmask that specifies the positioning protocol to be
+      * set as per GlonassPositioningProtocol enum.
+      *
+      * @return success True if operation was successful.
+      */
+     setGlonassPositioningProtocol(uint8_t protocol) generates (bool success);
+
+     /*
+      * This method configures which PDN to use.
+      *
+      * @param enable Use emergency PDN if true and regular PDN if false.
+      * @return success True if operation was successful.
+      */
+     setEmergencySuplPdn(bool enable) generates (bool success);
+};