radio/1.2/IRadio.hal

/*
 * Copyright (C) 2017 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@1.2;

import @1.1::IRadio;
import @1.1::RadioAccessNetworks;

/**
 * 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 @1.1::IRadioResponse and @1.1::IRadioIndication.
 */
interface IRadio extends @1.1::IRadio {

    /**
     * Starts a network scan
     *
     * @param serial Serial number of request.
     * @param request Defines the radio networks/bands/channels which need to be scanned.
     *
     * Response function is IRadioResponse.startNetworkScanResponse()
     */
    oneway startNetworkScan_1_2(int32_t serial, NetworkScanRequest request);

    /**
     * Sets the indication filter.
     *
     * Prevents the reporting of specified unsolicited indications from the radio. This is used
     * for power saving in instances when those indications are not needed. If unset, defaults to
     * @1.2::IndicationFilter:ALL.
     *
     * @param serial Serial number of request.
     * @param indicationFilter 32-bit bitmap of IndicationFilter. Bits set to 1 indicate the
     *        indications are enabled. See @1.2::IndicationFilter for the definition of each bit.
     *
     * Response callback is IRadioResponse.setIndicationFilterResponse()
     */
    oneway setIndicationFilter_1_2(int32_t serial, bitfield<IndicationFilter> indicationFilter);

    /**
     * Sets the signal strength reporting criteria.
     *
     * The resulting reporting criteria are the AND of all the supplied criteria.
     *
     * Note: Reporting criteria must be individually set for each RAN. If unset, reporting criteria
     * for that RAN are implementation-defined.
     *
     * Response callback is IRadioResponse.setSignalStrengthReportingCriteriaResponse().
     *
     * @param serial Serial number of request.
     * @param hysteresisMs A hysteresis time in milliseconds to prevent flapping. A value of 0
     *                     disables hysteresis.
     * @param hysteresisDb An interval in dB defining the required magnitude change between reports.
     *                     hysteresisDb must be smaller than the smallest threshold delta. An
     *                     interval value of 0 disables hysteresis.
     * @param thresholdsDbm A vector of trigger thresholds in dBm. A vector size of 0 disables the
     *                      use of thresholds for reporting.
     * @param ran The type of network for which to apply these thresholds.
     */
    oneway setSignalStrengthReportingCriteria(int32_t serial, int32_t hysteresisMs,
            int32_t hysteresisDb, vec<int32_t> thresholdsDbm, RadioAccessNetworks ran);

    /**
     * Sets the link capacity reporting criteria.
     *
     * The resulting reporting criteria are the AND of all the supplied criteria.
     *
     * Note: Reporting criteria must be individually set for each RAN. If unset, reporting criteria
     * for that RAN are implementation-defined.
     *
     * Response callback is IRadioResponse.setLinkCapacityReportingCriteriaResponse().
     *
     * @param serial Serial number of request.
     * @param hysteresisMs A hysteresis time in milliseconds to prevent flapping. A value of 0
     *                     disables hysteresis.
     * @param hysteresisDlKbps An interval in kbps defining the required magnitude change between DL
     *                         reports. hysteresisDlKbps must be smaller than the smallest threshold
     *                         delta. A value of 0 disables hysteresis.
     * @param hysteresisUlKbps An interval in kbps defining the required magnitude change between UL
     *                         reports. hysteresisUlKbps must be smaller than the smallest threshold
     *                         delta. A value of 0 disables hysteresis.
     * @param thresholdsDownlinkKbps A vector of trigger thresholds in kbps for downlink reports. A
     *                               vector size of 0 disables the use of DL thresholds for
     *                               reporting.
     * @param thresholdsUplinkKbps A vector of trigger thresholds in kbps for uplink reports. A
     *                             vector size of 0 disables the use of UL thresholds for reporting.
     * @param ran The type of network for which to apply these thresholds.
     */
    oneway setLinkCapacityReportingCriteria(int32_t serial, int32_t hysteresisMs,
            int32_t hysteresisDlKbps, int32_t hysteresisUlKbps, vec<int32_t> thresholdsDownlinkKbps,
            vec<int32_t> thresholdsUplinkKbps, RadioAccessNetworks ran);
};