/* * Copyright (c) 2022 Huawei Device Co., Ltd. * 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. */ /** * @addtogroup HdiNfc * @{ * * @brief Provides unified APIs for nfc services to access nfc drivers. * * An nfc service can obtain an nfc driver object or agent and then call APIs provided by this object or agent to * access nfc devices, thereby obtaining enabling or disabling an nfc controller, initializing an nfc core, * writing NCI data to an nfc driver, starting configuration for RF discovery of nfc remote endpoints, * sending nfc commands to an nfc driver for IO control. * * @version 1.0 */ package ohos.hdi.nfc.v1_0; import ohos.hdi.nfc.v1_0.NfcTypes; import ohos.hdi.nfc.v1_0.INfcCallback; /** * @brief Declares the APIs provided by the nfc module for obtaining nfc controller operations, enabling or * disabling an nfc controller, initializing an nfc core, writing NCI data to an nfc driver, starting * configuration for RF discovery of nfc remote endpoints, sending nfc commands to an nfc driver for IO control. * * @since 3.2 * @version 1.0 */ interface INfcInterface { /** * @brief Enables the nfc controller and initialize the nfc core. * * @param callbackObj Indicates the callback to obtain the data and events that sent to nfc stack by the nfc chip. * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ Open([in] INfcCallback callbackObj, [out] enum NfcStatus status); /** * @brief Configures the nfc chip after initializing the nfc core. * * @param callbackObj Indicates the callback to obtain the data and events that sent to nfc stack by the nfc chip. * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ CoreInitialized([in] List data, [out] enum NfcStatus status); /** * @brief Specifically configures the nfc chip before starting RF discovering. * * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ Prediscover([out] enum NfcStatus status); /** * @brief Writes NCI data to the nfc core. * * @param data the NCI data sending to the nfc controller interface. * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ Write([in] List data, [out] enum NfcStatus status); /** * @brief Sets the HDF to allow to send NCI data. * * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ ControlGranted([out] enum NfcStatus status); /** * @brief Restarts the nfc controller according to each power cycle. * * @return Returns 0if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ PowerCycle([out] enum NfcStatus status); /** * @brief Disables the nfc controller and releases the resource. * * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ Close([out] enum NfcStatus status); /** * @brief Sends I/O control commands and data from the nfc stack to HDI. * * @param cmd Indicates the commands that defined in NfcCommand in {@link NfcTypes}. * @param data Indicates the data that sent to HDI. * @return Returns 0 if the operation is succeed, otherwise marks the reason of failure. * For details, see {@link NfcTypes}. * * @since 3.2 * @version 1.0 */ Ioctl([in] enum NfcCommand cmd, [in] List data, [out] enum NfcStatus status); }