gnss/3.0/IGnssPsdsCallback.hal

/*
 * Copyright (C) 2020 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@3.0;

import @1.0::IGnssXtraCallback;

/**
 * This interface is used by the GNSS HAL to request download data from Predicted Satellite Data
 * Service (PSDS).
 */
interface IGnssPsdsCallback extends @1.0::IGnssXtraCallback {
   /**
    * Callback to request the client to download PSDS data. The client should
    * download PSDS data and inject it by calling injectPsdsData().
    *
    * psdsType represents the type of PSDS data requested.
    * - Value 1 represents the Long-Term type PSDS data, which lasts for many hours to several days
    *   and often provides satellite orbit and clock accuracy of 2 - 20 meters.
    * - Value 2 represents the Normal type PSDS data, which is similar to broadcast ephemeris in
    *   longevity - lasting for hours and providings satellite orbit and clock accuracy of 1 - 2
    *   meters.
    * - Value 3 represents the Real-Time type PSDS data, which lasts for minutes and provides brief
    *   satellite status information such as temporary malfunction, but does not include satellite
    *   orbit or clock information.
    */
   downloadRequestCb_3_0(int32_t psdsType);
};