_backend/radio/config/1.1/IRadioConfig.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 lineage.hardware.radio.config@1.1;

import @1.0::IRadioConfig;
import @1.1::IRadioConfigResponse;
import @1.1::PhoneCapability;
import @1.1::ModemsConfig;

/**
 * Note: IRadioConfig 1.1 is an intermediate layer between Android P and Android Q.
 * It's specifically designed for CBRS related interfaces. All other interfaces
 * for Q are added in IRadioConfig 1.2.
 *
 * This interface is used by telephony and telecom to talk to cellular radio for the purpose of
 * radio configuration, and it is not associated with any specific modem or slot.
 * 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.
 */
interface IRadioConfig extends @1.0::IRadioConfig {
   /**
     * Request current phone capability.
     *
     * @param serial Serial number of request.
     *
     * Response callback is IRadioResponse.getPhoneCapabilityResponse() which
     * will return <@1.1::PhoneCapability>.
     */
    oneway getPhoneCapability(int32_t serial);

   /**
     * Set preferred data modem Id.
     * In a multi-SIM device, notify modem layer which logical modem will be used primarily
     * for data. It helps modem with resource optimization and decisions of what data connections
     * should be satisfied.
     *
     * @param serial Serial number of request.
     * @param modem Id the logical modem ID, which should match one of modem IDs returned
     * from getPhoneCapability().
     *
     * Response callback is IRadioConfigResponse.setPreferredDataModemResponse()
     */
    oneway setPreferredDataModem(int32_t serial, uint8_t modemId);

   /**
     * Set modems configurations by specifying the number of live modems (i.e modems that are
     * enabled and actively working as part of a working telephony stack).
     *
     * Example: this interface can be used to switch to single/multi sim mode by specifying
     * the number of live modems as 1, 2, etc
     *
     * Note: by setting the number of live modems in this API, that number of modems will
     * subsequently get enabled/disabled
     *
     * @param serial serial number of request.
     * @param modemsConfig ModemsConfig object including the number of live modems
     *
     * Response callback is IRadioResponse.setModemsConfigResponse()
     */
    oneway setModemsConfig(int32_t serial, ModemsConfig modemsConfig);

   /**
     * Get modems configurations. This interface is used to get modem configurations
     * which includes the number of live modems (i.e modems that are
     * enabled and actively working as part of a working telephony stack)
     *
     * Note: in order to get the overall number of modems available on the phone,
     * refer to getPhoneCapability API
     *
     * @param serial Serial number of request.
     *
     * Response callback is IRadioResponse.getModemsConfigResponse() which
     * will return <@1.1::ModemsConfig>.
     */
    oneway getModemsConfig(int32_t serial);
};