platform_hardware_interfaces/radio/1.5/IRadio.hal

/*
 * Copyright (C) 2019 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.radio@1.5;

import @1.4::IRadio;
import @1.5::AccessNetwork;
import @1.5::SignalThresholdInfo;

/**
 * This interface is used by telephony and telecom to talk to cellular radio.
 * All the functions have minimum one parameter:
 * serial: which corresponds to serial no. of request. Serial numbers must only be memorized for the
 * duration of a method call. If clients provide colliding serials (including passing the same
 * serial to different methods), multiple responses (one for each method call) must still be served.
 * setResponseFunctions must work with @1.5::IRadioResponse and @1.5::IRadioIndication.
 */
interface IRadio extends @1.4::IRadio {

    /**
     * Sets the signal strength reporting criteria.
     *
     * The resulting reporting rules are the AND of all the supplied criteria. For each RAN
     * The hysteresisDb and thresholds apply to only the following measured quantities:
     * -GERAN    - RSSI
     * -CDMA2000 - RSSI
     * -UTRAN    - RSCP
     * -EUTRAN   - RSRP/RSRQ/RSSNR
     * -NGRAN    - SSRSRP/SSRSRQ/SSSINR
     *
     * Note: Reporting criteria must be individually set for each RAN. For any unset reporting
     * criteria, the value is implementation-defined.
     *
     * Response callback is
     * IRadioResponse.setSignalStrengthReportingCriteriaResponse_1_5()
     *
     * @param serial Serial number of request.
     * @param signalThresholdInfo Signal threshold info including the threshold values,
     *                            hysteresisDb, and hysteresisMs. See @1.5::SignalThresholdInfo
     *                            for details.
     * @param accessNetwork The type of network for which to apply these thresholds.
     */
    oneway setSignalStrengthReportingCriteria_1_5(int32_t serial,
            SignalThresholdInfo signalThresholdInfo, AccessNetwork accessNetwork);
};