gnss/2.0/IAGnssRil.hal

/*
 * Copyright (C) 2018 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@2.0;

import @1.0::IAGnssRil;

/**
 * Extended interface for AGNSS RIL support. An Assisted GNSS Radio Interface
 * Layer interface allows the GNSS chipset to request radio interface layer
 * information from Android platform. Examples of such information are reference
 * location, unique subscriber ID, phone number string and network availability changes.
 */
interface IAGnssRil extends @1.0::IAGnssRil {
    /** Flags to indicate capabilities of the network */
    enum NetworkCapability : uint16_t {
        /** Network is not metered. */
        NOT_METERED       = 1 << 0,
        /** Network is not roaming. */
        NOT_ROAMING       = 1 << 1
    };

    /** Represents network connection status and capabilities. */
    struct NetworkAttributes {
        /** Network handle of the network for use with the NDK API. */
        net_handle_t networkHandle;

        /**
         * True indicates that network connectivity exists and it is possible to
         * establish connections and pass data. If false, only the networkHandle field
         * is populated to indicate that this network has just disconnected.
         */
        bool isConnected;

        /** A set of flags indicating the capabilities of this network. */
        bitfield<NetworkCapability> capabilities;

        /**
         * Telephony preferred Access Point Name to use for carrier data connection when
         * connected to a cellular network. Empty string, otherwise.
         */
        string apn;
    };

    /**
     * Notifies GNSS of network status changes.
     *
     * The framework calls this method to update the GNSS HAL implementation of network
     * state changes. The methods updateNetworkState() and updateNetworkAvailability
     * in @1.0::IAGnssRil are deprecated and are not called by the framework.
     *
     * @param attributes Updated network attributes.
     *
     * @return success True if all parameters were valid and the operation was
     * successful.
     */
    updateNetworkState_2_0(NetworkAttributes attributes) generates (bool success);
};