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::NetworkScanRequest;
import @1.5::RadioAccessSpecifier;
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 each RAN, if none of
     * reporting criteria of any measurement is set enabled
     * (see @1.5::SignalThresholdInfo.isEnabled), the reporting criteria for this RAN is
     * implementation-defined. For each RAN, if any of reporting criteria of any measure is set
     * enabled, the reporting criteria of the other measures in this RAN are set disabled
     * (see @1.5::SignalThresholdInfo.isEnabled) until they are set enabled.
     *
     * Response callback is
     * IRadioResponse.setSignalStrengthReportingCriteriaResponse_1_5()
     *
     * @param serial Serial number of request.
     * @param signalThresholdInfo Signal threshold info including the threshold values,
     *                            hysteresisDb, hysteresisMs and isEnabled.
     *                            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);

    /**
     * Enable or disable UiccApplications on the SIM. If disabled:
     *  - Modem will not register on any network.
     *  - SIM must be PRESENT, and the IccId of the SIM must still be accessible.
     *  - The corresponding modem stack is still functional, e.g. able to make emergency calls or
     *    do network scan.
     * By default if this API is not called, the uiccApplications must be enabled automatically.
     * It must work for both single SIM and DSDS cases for UX consistency.
     * The preference is per SIM, and must be remembered over power cycle, modem reboot, or SIM
     * insertion / unplug.
     *
     * @param serial: Serial number of request.
     * @param enable: true if to enable uiccApplications, false to disable.

     * Response callback is IRadioResponse.enableUiccApplicationsResponse()
     */
    oneway enableUiccApplications(int32_t serial, bool enable);

    /**
     * Whether uiccApplications are enabled, or disabled.
     *
     * By default uiccApplications must be enabled, unless enableUiccApplications() with enable
     * being false is called.
     *
     * @param serial Serial number of request.
     *
     * Response callback is IRadioResponse.areUiccApplicationsEnabledResponse()
     */
    oneway areUiccApplicationsEnabled(int32_t serial);

    /**
     * Query whether disabling and enabling UiccApplications functionality is supported. If not,
     * calling enableUiccApplications with a different value will return
     * RadioError:REQUEST_NOT_SUPPORTED.
     *
     * @param serial Serial number of request.
     *
     * Response callback is IRadioResponse.canToggleUiccApplicationsEnablementResponse()
     */
    oneway canToggleUiccApplicationsEnablement(int32_t serial);

    /**
     * Specify which bands modem's background scan must act on.
     * If specifyChannels is true, it only scans bands specified in specifiers.
     * If specifyChannels is false, it scans all bands.
     *
     * For example, CBRS is only on LTE band 48. By specifying this band,
     * modem saves more power.
     *
     * @param serial Serial number of request.
     * @param specifyChannels whether to scan bands defined in specifiers.
     * @param specifiers which bands to scan. Only used if specifyChannels is true.
     *
     * Response callback is IRadioResponse.setSystemSelectionChannelsResponse()
     */
    oneway setSystemSelectionChannels_1_5(int32_t serial, bool specifyChannels,
            vec<RadioAccessSpecifier> specifiers);

    /**
     * Starts a network scan
     *
     * @param serial Serial number of request.
     * @param request Defines the radio networks/bands/channels which need to be scanned.
     *
     * Same API as @1.4::IRadio.startNetworkScan_1_4, except using
     * 1.5 version of NetworkScanRequest
     */
    oneway startNetworkScan_1_5(int32_t serial, NetworkScanRequest request);
};