/*
 * 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;
import @1.0::DataProfileInfo;
import @1.0::RadioTechnology;

/**
 * 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 rules are the AND of all the supplied criteria. For each RAN
     * The thresholdsDbm and hysteresisDb apply to only the following measured quantities:
     * -GERAN    - RSSI
     * -CDMA2000 - RSSI
     * -UTRAN    - RSCP
     * -EUTRAN   - RSRP
     *
     * Note: Reporting criteria must be individually set for each RAN. For any unset reporting
     * criteria, the value is implementation-defined.
     *
     * Note: As this mechanism generally only constrains reports based on one measured quantity per
     * RAN, if multiple measured quantities must be used to trigger a report for a given RAN, the
     * only valid field may be hysteresisMs: hysteresisDb and thresholdsDbm must be set to zero and
     * length zero respectively. If either hysteresisDb or thresholdsDbm is set, then reports shall
     * only be triggered by the respective measured quantity, subject to the applied constraints.
     *
     * 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 accessNetwork 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, AccessNetwork accessNetwork);

    /**
     * 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 accessNetwork 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, AccessNetwork accessNetwork);

    /**
     * Setup a packet data connection. If DataCallResponse.status returns DataCallFailCause:NONE,
     * the data connection must be added to data calls and a unsolDataCallListChanged() must be
     * sent. The call remains until removed by subsequent unsolDataCallIstChanged(). It may be
     * lost due to many factors, including deactivateDataCall() being issued, the radio powered
     * off, reception lost or even transient factors like congestion. This data call list is
     * returned by getDataCallList() and dataCallListChanged().
     *
     * The Radio is expected to:
     *   - Create one data call context.
     *   - Create and configure a dedicated interface for the context.
     *   - The interface must be point to point.
     *   - The interface is configured with one or more addresses and is capable of sending and
     *     receiving packets. The prefix length of the addresses must be /32 for IPv4 and /128
     *     for IPv6.
     *   - Must not modify routing configuration related to this interface; routing management is
     *     exclusively within the purview of the Android OS.
     *   - Support simultaneous data call contexts up to DataRegStateResult.maxDataCalls specified
     *     in the response of getDataRegistrationState.
     *
     * @param serial Serial number of request.
     * @param accessNetwork The access network to setup the data call. If the data connection cannot
     *     be established on the specified access network, the setup request must be failed.
     * @param dataProfileInfo Data profile info.
     * @param modemCognitive Indicates that the requested profile has previously been provided via
     *     setDataProfile().
     * @param roamingAllowed Indicates whether or not data roaming is allowed by the user.
     * @param isRoaming Indicates whether or not the framework has requested this setupDataCall for
     *     a roaming network. The 'protocol' parameter in the old RIL API must be filled
     *     accordingly based on the roaming condition. Note this is for backward compatibility with
     *     the old radio modem. The modem must not use this param for any other reason.
     * @param reason The request reason. Must be DataRequestReason.NORMAL or
     *     DataRequestReason.HANDOVER.
     * @param addresses If the reason is DataRequestReason.HANDOVER, this indicates the list of link
     *     addresses of the existing data connection. The format is IP address with optional "/"
     *     prefix length (The format is defined in RFC-4291 section 2.3). For example, "192.0.1.3",
     *     "192.0.1.11/16", or "2001:db8::1/64". Typically one IPv4 or one IPv6 or one of each. If
     *     the prefix length is absent, then the addresses are assumed to be point to point with
     *     IPv4 with prefix length 32 or IPv6 with prefix length 128. This parameter must be ignored
     *     unless reason is DataRequestReason.HANDOVER.
     * @param dnses If the reason is DataRequestReason.HANDOVER, this indicates the list of DNS
     *     addresses of the existing data connection. The format is defined in RFC-4291 section
     *     2.2. For example, "192.0.1.3" or "2001:db8::1". This parameter must be ignored unless
     *     reason is DataRequestReason.HANDOVER.
     *
     * Response function is IRadioResponse.setupDataCallResponse()
     */
    oneway setupDataCall_1_2(int32_t serial, AccessNetwork accessNetwork,
            DataProfileInfo dataProfileInfo, bool modemCognitive, bool roamingAllowed,
            bool isRoaming, DataRequestReason reason, vec<string> addresses, vec<string> dnses);

    /**
     * Deactivate packet data connection and remove from the data call list. An
     * unsolDataCallListChanged() must be sent when data connection is deactivated.
     *
     * @param serial Serial number of request.
     * @param cid Data call id.
     * @param reason The request reason. Must be normal, handover, or shutdown.
     *
     * Response function is IRadioResponse.deactivateDataCallResponse()
     */
    oneway deactivateDataCall_1_2(int32_t serial, int32_t cid, DataRequestReason reason);
};