nfc/aidl/default/Nfc.cpp

/*
 * Copyright (C) 2021 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.
 */

#include "Nfc.h"

#include <android-base/logging.h>

#include "Vendor_hal_api.h"

namespace aidl {
namespace android {
namespace hardware {
namespace nfc {

std::shared_ptr<INfcClientCallback> Nfc::mCallback = nullptr;
AIBinder_DeathRecipient* clientDeathRecipient = nullptr;

void OnDeath(void* cookie) {
    if (Nfc::mCallback != nullptr && !AIBinder_isAlive(Nfc::mCallback->asBinder().get())) {
        LOG(INFO) << __func__ << " Nfc service has died";
        Nfc* nfc = static_cast<Nfc*>(cookie);
        nfc->close(NfcCloseType::DISABLE);
    }
}

::ndk::ScopedAStatus Nfc::open(const std::shared_ptr<INfcClientCallback>& clientCallback) {
    LOG(INFO) << "open";
    if (clientCallback == nullptr) {
        LOG(INFO) << "Nfc::open null callback";
        return ndk::ScopedAStatus::fromServiceSpecificError(
                static_cast<int32_t>(NfcStatus::FAILED));
    }
    Nfc::mCallback = clientCallback;

    clientDeathRecipient = AIBinder_DeathRecipient_new(OnDeath);
    auto linkRet = AIBinder_linkToDeath(clientCallback->asBinder().get(), clientDeathRecipient,
                                        this /* cookie */);
    if (linkRet != STATUS_OK) {
        LOG(ERROR) << __func__ << ": linkToDeath failed: " << linkRet;
        // Just ignore the error.
    }

    int ret = Vendor_hal_open(eventCallback, dataCallback);
    return ret == 0 ? ndk::ScopedAStatus::ok()
                    : ndk::ScopedAStatus::fromServiceSpecificError(
                              static_cast<int32_t>(NfcStatus::FAILED));
}

::ndk::ScopedAStatus Nfc::close(NfcCloseType type) {
    LOG(INFO) << "close";
    if (Nfc::mCallback == nullptr) {
        LOG(ERROR) << __func__ << "mCallback null";
        return ndk::ScopedAStatus::fromServiceSpecificError(
                static_cast<int32_t>(NfcStatus::FAILED));
    }
    int ret = 0;
    if (type == NfcCloseType::HOST_SWITCHED_OFF) {
        ret = Vendor_hal_close_off();
    } else {
        ret = Vendor_hal_close();
    }
    Nfc::mCallback = nullptr;
    AIBinder_DeathRecipient_delete(clientDeathRecipient);
    clientDeathRecipient = nullptr;
    return ret == 0 ? ndk::ScopedAStatus::ok()
                    : ndk::ScopedAStatus::fromServiceSpecificError(
                              static_cast<int32_t>(NfcStatus::FAILED));
}

::ndk::ScopedAStatus Nfc::coreInitialized() {
    LOG(INFO) << "coreInitialized";
    if (Nfc::mCallback == nullptr) {
        LOG(ERROR) << __func__ << "mCallback null";
        return ndk::ScopedAStatus::fromServiceSpecificError(
                static_cast<int32_t>(NfcStatus::FAILED));
    }
    int ret = Vendor_hal_core_initialized();

    return ret == 0 ? ndk::ScopedAStatus::ok()
                    : ndk::ScopedAStatus::fromServiceSpecificError(
                              static_cast<int32_t>(NfcStatus::FAILED));
}

::ndk::ScopedAStatus Nfc::factoryReset() {
    LOG(INFO) << "factoryReset";
    Vendor_hal_factoryReset();
    return ndk::ScopedAStatus::ok();
}

::ndk::ScopedAStatus Nfc::getConfig(NfcConfig* _aidl_return) {
    LOG(INFO) << "getConfig";
    NfcConfig nfcVendorConfig;
    Vendor_hal_getConfig(nfcVendorConfig);

    *_aidl_return = nfcVendorConfig;
    return ndk::ScopedAStatus::ok();
}

::ndk::ScopedAStatus Nfc::powerCycle() {
    LOG(INFO) << "powerCycle";
    if (Nfc::mCallback == nullptr) {
        LOG(ERROR) << __func__ << "mCallback null";
        return ndk::ScopedAStatus::fromServiceSpecificError(
                static_cast<int32_t>(NfcStatus::FAILED));
    }
    return Vendor_hal_power_cycle() ? ndk::ScopedAStatus::fromServiceSpecificError(
                                              static_cast<int32_t>(NfcStatus::FAILED))
                                    : ndk::ScopedAStatus::ok();
}

::ndk::ScopedAStatus Nfc::preDiscover() {
    LOG(INFO) << "preDiscover";
    if (Nfc::mCallback == nullptr) {
        LOG(ERROR) << __func__ << "mCallback null";
        return ndk::ScopedAStatus::fromServiceSpecificError(
                static_cast<int32_t>(NfcStatus::FAILED));
    }
    return Vendor_hal_pre_discover() ? ndk::ScopedAStatus::fromServiceSpecificError(
                                               static_cast<int32_t>(NfcStatus::FAILED))
                                     : ndk::ScopedAStatus::ok();
}

::ndk::ScopedAStatus Nfc::write(const std::vector<uint8_t>& data, int32_t* _aidl_return) {
    LOG(INFO) << "write";
    if (Nfc::mCallback == nullptr) {
        LOG(ERROR) << __func__ << "mCallback null";
        return ndk::ScopedAStatus::fromServiceSpecificError(
                static_cast<int32_t>(NfcStatus::FAILED));
    }
    *_aidl_return = Vendor_hal_write(data.size(), &data[0]);
    return ndk::ScopedAStatus::ok();
}
::ndk::ScopedAStatus Nfc::setEnableVerboseLogging(bool enable) {
    LOG(INFO) << "setVerboseLogging";
    Vendor_hal_setVerboseLogging(enable);
    return ndk::ScopedAStatus::ok();
}

::ndk::ScopedAStatus Nfc::isVerboseLoggingEnabled(bool* _aidl_return) {
    *_aidl_return = Vendor_hal_getVerboseLogging();
    return ndk::ScopedAStatus::ok();
}

}  // namespace nfc
}  // namespace hardware
}  // namespace android
}  // namespace aidl