radio/1.1/IRadio.hal

/*
 * Copyright (C) 2016 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@1.1;

import IRadioResponse;
import @1.0::IRadio;

/**
 * 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 @1.0::IRadio {
    /**
     * Provide Carrier specific information to the modem that must be used to
     * encrypt the IMSI and IMPI. Sent by the framework during boot, carrier
     * switch and everytime the framework receives a new certificate.
     *
     * @param serial Serial number of request.
     * @param carrierKey Carrier specific key to be used for encryption. It must
     *        be opaque to the framework. This is the byte-stream representation
     *        of the key. This is an external encoded form for the key used when
     *        a standard representation of the key is needed outside the Java
     *        Virtual Machine, as when transmitting the key to some other party.
     *        The key is encoded according to a standard format
     *        (such as X.509 SubjectPublicKeyInfo or PKCS#8), and is returned using
     *        the getEncoded method.
     * @param keyIdentifier This is an opaque value we're given by the carrier
     *        and is returned to the carrier. This is used by the server to
     *        help it locate the private key to decrypt the permanent identity.
     *
     * Response callback is
     * IRadioResponse.setCarrierInfoForImsiEncryptionResponse()
     */
     oneway setCarrierInfoForImsiEncryption(int32_t serial, vec<uint8_t> carrierKey,
             string keyIdentifier);

    /**
     * Set SIM card power state.
     * Request is equivalent to inserting or removing the card.
     *
     * The radio modem must generate IRadioIndication.simStatusChanged() as if the SIM had been
     * inserted or removed.
     *
     * @param serial Serial number of request
     * @param powerUp POWER_DOWN if powering down the SIM card,
     *                POWER_UP if powering up the SIM card,
     *                POWER_UP_PASS_THROUGH if powering up the SIM card in pass through mode.
     * When SIM card is in POWER_UP_PASS_THROUGH, the modem does not send any command to it
     * (for example SELECT of MF, or TERMINAL CAPABILITY), and the SIM card is controlled
     * completely by Telephony sending APDUs directly. The SIM card state must be
     * RIL_CARDSTATE_PRESENT and the number of card apps will be 0.
     * No new error code is generated. Emergency calls are supported in the same way as if the
     * SIM card is absent.
     * POWER_UP_PASS_THROUGH mode is valid only for the specific card session where it is activated,
     * and normal behavior occurs at the next SIM initialization, unless POWER_UP_PASS_THROUGH mode
     * is requested again.
     * The device is required to power down the SIM card before it can switch the mode between
     * POWER_UP and POWER_UP_PASS_THROUGH.
     * At device power up, the SIM interface is powered up automatically. Each subsequent request
     * to this method is processed only after the completion of the previous one.
     *
     * Response callback is IRadioResponse.setSimCardPowerResponse_1_1()
     */
    oneway setSimCardPower_1_1(int32_t serial, CardPowerState powerUp);

    /**
     * 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(int32_t serial, NetworkScanRequest request);

    /**
     * Stops ongoing network scan
     *
     * @param serial Serial number of request.
     *
     * Response function is IRadioResponse.stopNetworkScanResponse()
     */
    oneway stopNetworkScan(int32_t serial);
};