diff --git a/services/tuner/Android.bp b/services/tuner/Android.bp
index 6078e54..65d8d41 100644
--- a/services/tuner/Android.bp
+++ b/services/tuner/Android.bp
@@ -1,7 +1,10 @@
 filegroup {
     name: "tv_tuner_aidl",
     srcs: [
+        "aidl/android/media/tv/tuner/ITunerFrontend.aidl",
+        "aidl/android/media/tv/tuner/ITunerFrontendCallback.aidl",
         "aidl/android/media/tv/tuner/ITunerService.aidl",
+        "aidl/android/media/tv/tuner/TunerAtsc3PlpInfo.aidl",
         "aidl/android/media/tv/tuner/TunerFrontendAnalogCapabilities.aidl",
         "aidl/android/media/tv/tuner/TunerFrontendAtscCapabilities.aidl",
         "aidl/android/media/tv/tuner/TunerFrontendAtsc3Capabilities.aidl",
@@ -12,6 +15,19 @@
         "aidl/android/media/tv/tuner/TunerFrontendIsdbsCapabilities.aidl",
         "aidl/android/media/tv/tuner/TunerFrontendIsdbs3Capabilities.aidl",
         "aidl/android/media/tv/tuner/TunerFrontendIsdbtCapabilities.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendAnalogSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendAtsc3PlpSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendAtsc3Settings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendAtscSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendCableSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendDvbsCodeRate.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendDvbsSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendDvbtSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendIsdbs3Settings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendIsdbsSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendIsdbtSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendSettings.aidl",
+        "aidl/android/media/tv/tuner/TunerFrontendStatus.aidl",
         "aidl/android/media/tv/tuner/TunerServiceFrontendInfo.aidl",
     ],
     path: "aidl",
@@ -31,6 +47,7 @@
 
     srcs: [
         "TunerService.cpp",
+        "TunerFrontend.cpp"
     ],
 
     shared_libs: [
@@ -81,4 +98,4 @@
         "-Werror",
         "-Wall",
     ],
-}
\ No newline at end of file
+}
diff --git a/services/tuner/TunerFrontend.cpp b/services/tuner/TunerFrontend.cpp
new file mode 100644
index 0000000..ba4553b
--- /dev/null
+++ b/services/tuner/TunerFrontend.cpp
@@ -0,0 +1,463 @@
+/**
+ * Copyright 2020, 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.
+ */
+
+#define LOG_TAG "TunerFrontend"
+
+#include "TunerFrontend.h"
+#include "TunerService.h"
+
+using ::aidl::android::media::tv::tuner::TunerAtsc3PlpInfo;
+using ::aidl::android::media::tv::tuner::TunerFrontendAtsc3PlpSettings;
+using ::android::hardware::tv::tuner::V1_0::FrontendAnalogSifStandard;
+using ::android::hardware::tv::tuner::V1_0::FrontendAnalogType;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtscModulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3Bandwidth;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3CodeRate;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3DemodOutputFormat;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3Fec;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3Modulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3TimeInterleaveMode;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbcAnnex;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbcModulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbcOuterFec;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbcSpectralInversion;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsModulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsPilot;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsRolloff;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsSettings;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsStandard;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsVcmMode;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtBandwidth;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtCoderate;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtConstellation;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtGuardInterval;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtHierarchy;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtPlpMode;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtSettings;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtStandard;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbtTransmissionMode;
+using ::android::hardware::tv::tuner::V1_0::FrontendInnerFec;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbs3Coderate;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbs3Modulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbs3Rolloff;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbs3Settings;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbsCoderate;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbsModulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbsRolloff;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbsSettings;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbsStreamIdType;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbtBandwidth;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbtCoderate;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbtGuardInterval;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbtMode;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbtModulation;
+using ::android::hardware::tv::tuner::V1_0::FrontendIsdbtSettings;
+using ::android::hardware::tv::tuner::V1_0::FrontendScanAtsc3PlpInfo;
+using ::android::hardware::tv::tuner::V1_0::FrontendScanType;
+using ::android::hardware::tv::tuner::V1_0::FrontendSettings;;
+using ::android::hardware::tv::tuner::V1_0::Result;
+
+namespace android {
+
+TunerFrontend::TunerFrontend(sp<ITuner> tuner, int frontendHandle) {
+    mTuner = tuner;
+    mId = TunerService::getResourceIdFromHandle(frontendHandle);
+
+    if (mTuner != NULL) {
+        Result status;
+        mTuner->openFrontendById(mId, [&](Result result, const sp<IFrontend>& frontend) {
+            mFrontend = frontend;
+            status = result;
+        });
+        if (status != Result::SUCCESS) {
+            mFrontend = NULL;
+        }
+    }
+}
+
+TunerFrontend::~TunerFrontend() {}
+
+Status TunerFrontend::setCallback(
+        const std::shared_ptr<ITunerFrontendCallback>& tunerFrontendCallback) {
+    if (mFrontend == NULL) {
+        ALOGE("IFrontend is not initialized");
+        return Status::fromServiceSpecificError(static_cast<int32_t>(Result::UNAVAILABLE));
+    }
+
+    if (tunerFrontendCallback == NULL) {
+        return Status::fromServiceSpecificError(static_cast<int32_t>(Result::INVALID_ARGUMENT));
+    }
+
+    sp<IFrontendCallback> frontendCallback = new FrontendCallback(tunerFrontendCallback);
+    Result status = mFrontend->setCallback(frontendCallback);
+    if (status == Result::SUCCESS) {
+        return Status::ok();
+    }
+
+    return Status::fromServiceSpecificError(static_cast<int32_t>(status));
+}
+
+Status TunerFrontend::tune(const TunerFrontendSettings& /*settings*/) {
+    return Status::ok();
+}
+
+Status TunerFrontend::stopTune() {
+    return Status::ok();
+}
+
+Status TunerFrontend::scan(const TunerFrontendSettings& settings, int frontendScanType) {
+    if (mFrontend == NULL) {
+        ALOGD("IFrontend is not initialized");
+        return Status::fromServiceSpecificError(static_cast<int32_t>(Result::UNAVAILABLE));
+    }
+
+    FrontendSettings frontendSettings;
+    switch (settings.getTag()) {
+        case TunerFrontendSettings::analog:
+            frontendSettings.analog({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::analog>().frequency),
+                .type = static_cast<FrontendAnalogType>(
+                        settings.get<TunerFrontendSettings::analog>().signalType),
+                .sifStandard = static_cast<FrontendAnalogSifStandard>(
+                        settings.get<TunerFrontendSettings::analog>().sifStandard),
+            });
+            break;
+        case TunerFrontendSettings::atsc:
+            frontendSettings.atsc({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::atsc>().frequency),
+                .modulation = static_cast<FrontendAtscModulation>(
+                        settings.get<TunerFrontendSettings::atsc>().modulation),
+            });
+            break;
+        case TunerFrontendSettings::atsc3:
+            frontendSettings.atsc3({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::atsc3>().frequency),
+                .bandwidth = static_cast<FrontendAtsc3Bandwidth>(
+                        settings.get<TunerFrontendSettings::atsc3>().bandwidth),
+                .demodOutputFormat = static_cast<FrontendAtsc3DemodOutputFormat>(
+                        settings.get<TunerFrontendSettings::atsc3>().demodOutputFormat),
+                .plpSettings = getAtsc3PlpSettings(settings.get<TunerFrontendSettings::atsc3>()),
+            });
+            break;
+        case TunerFrontendSettings::cable:
+            frontendSettings.dvbc({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::cable>().frequency),
+                .modulation = static_cast<FrontendDvbcModulation>(
+                        settings.get<TunerFrontendSettings::cable>().modulation),
+                .fec = static_cast<FrontendInnerFec>(
+                        settings.get<TunerFrontendSettings::cable>().innerFec),
+                .symbolRate = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::cable>().symbolRate),
+                .outerFec = static_cast<FrontendDvbcOuterFec>(
+                        settings.get<TunerFrontendSettings::cable>().outerFec),
+                .annex = static_cast<FrontendDvbcAnnex>(
+                        settings.get<TunerFrontendSettings::cable>().annex),
+                .spectralInversion = static_cast<FrontendDvbcSpectralInversion>(
+                        settings.get<TunerFrontendSettings::cable>().spectralInversion),
+            });
+            break;
+        case TunerFrontendSettings::dvbs:
+            frontendSettings.dvbs({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::dvbs>().frequency),
+                .modulation = static_cast<FrontendDvbsModulation>(
+                        settings.get<TunerFrontendSettings::dvbs>().modulation),
+                .coderate = getDvbsCodeRate(
+                        settings.get<TunerFrontendSettings::dvbs>().codeRate),
+                .symbolRate = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::dvbs>().symbolRate),
+                .rolloff = static_cast<FrontendDvbsRolloff>(
+                        settings.get<TunerFrontendSettings::dvbs>().rolloff),
+                .pilot = static_cast<FrontendDvbsPilot>(
+                        settings.get<TunerFrontendSettings::dvbs>().pilot),
+                .inputStreamId = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::dvbs>().inputStreamId),
+                .standard = static_cast<FrontendDvbsStandard>(
+                        settings.get<TunerFrontendSettings::dvbs>().standard),
+                .vcmMode = static_cast<FrontendDvbsVcmMode>(
+                        settings.get<TunerFrontendSettings::dvbs>().vcm),
+            });
+            break;
+        case TunerFrontendSettings::dvbt:
+            frontendSettings.dvbt({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::dvbt>().frequency),
+                .transmissionMode = static_cast<FrontendDvbtTransmissionMode>(
+                        settings.get<TunerFrontendSettings::dvbt>().transmissionMode),
+                .bandwidth = static_cast<FrontendDvbtBandwidth>(
+                        settings.get<TunerFrontendSettings::dvbt>().bandwidth),
+                .constellation = static_cast<FrontendDvbtConstellation>(
+                        settings.get<TunerFrontendSettings::dvbt>().constellation),
+                .hierarchy = static_cast<FrontendDvbtHierarchy>(
+                        settings.get<TunerFrontendSettings::dvbt>().hierarchy),
+                .hpCoderate = static_cast<FrontendDvbtCoderate>(
+                        settings.get<TunerFrontendSettings::dvbt>().hpCodeRate),
+                .lpCoderate = static_cast<FrontendDvbtCoderate>(
+                        settings.get<TunerFrontendSettings::dvbt>().lpCodeRate),
+                .guardInterval = static_cast<FrontendDvbtGuardInterval>(
+                        settings.get<TunerFrontendSettings::dvbt>().guardInterval),
+                .isHighPriority = settings.get<TunerFrontendSettings::dvbt>().isHighPriority,
+                .standard = static_cast<FrontendDvbtStandard>(
+                        settings.get<TunerFrontendSettings::dvbt>().standard),
+                .isMiso = settings.get<TunerFrontendSettings::dvbt>().isMiso,
+                .plpMode = static_cast<FrontendDvbtPlpMode>(
+                        settings.get<TunerFrontendSettings::dvbt>().plpMode),
+                .plpId = static_cast<uint8_t>(
+                        settings.get<TunerFrontendSettings::dvbt>().plpId),
+                .plpGroupId = static_cast<uint8_t>(
+                        settings.get<TunerFrontendSettings::dvbt>().plpGroupId),
+            });
+            break;
+        case TunerFrontendSettings::isdbs:
+            frontendSettings.isdbs({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::isdbs>().frequency),
+                .streamId = static_cast<uint16_t>(
+                        settings.get<TunerFrontendSettings::isdbs>().streamId),
+                .streamIdType = static_cast<FrontendIsdbsStreamIdType>(
+                        settings.get<TunerFrontendSettings::isdbs>().streamIdType),
+                .modulation = static_cast<FrontendIsdbsModulation>(
+                        settings.get<TunerFrontendSettings::isdbs>().modulation),
+                .coderate = static_cast<FrontendIsdbsCoderate>(
+                        settings.get<TunerFrontendSettings::isdbs>().codeRate),
+                .symbolRate = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::isdbs>().symbolRate),
+                .rolloff = static_cast<FrontendIsdbsRolloff>(
+                        settings.get<TunerFrontendSettings::isdbs>().rolloff),
+            });
+            break;
+        case TunerFrontendSettings::isdbs3:
+            frontendSettings.isdbs3({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::isdbs3>().frequency),
+                .streamId = static_cast<uint16_t>(
+                        settings.get<TunerFrontendSettings::isdbs3>().streamId),
+                .streamIdType = static_cast<FrontendIsdbsStreamIdType>(
+                        settings.get<TunerFrontendSettings::isdbs3>().streamIdType),
+                .modulation = static_cast<FrontendIsdbs3Modulation>(
+                        settings.get<TunerFrontendSettings::isdbs3>().modulation),
+                .coderate = static_cast<FrontendIsdbs3Coderate>(
+                        settings.get<TunerFrontendSettings::isdbs3>().codeRate),
+                .symbolRate = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::isdbs3>().symbolRate),
+                .rolloff = static_cast<FrontendIsdbs3Rolloff>(
+                        settings.get<TunerFrontendSettings::isdbs3>().rolloff),
+            });
+            break;
+        case TunerFrontendSettings::isdbt:
+            frontendSettings.isdbt({
+                .frequency = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::isdbt>().frequency),
+                .modulation = static_cast<FrontendIsdbtModulation>(
+                        settings.get<TunerFrontendSettings::isdbt>().modulation),
+                .bandwidth = static_cast<FrontendIsdbtBandwidth>(
+                        settings.get<TunerFrontendSettings::isdbt>().bandwidth),
+                .mode = static_cast<FrontendIsdbtMode>(
+                        settings.get<TunerFrontendSettings::isdbt>().mode),
+                .coderate = static_cast<FrontendIsdbtCoderate>(
+                        settings.get<TunerFrontendSettings::isdbt>().codeRate),
+                .guardInterval = static_cast<FrontendIsdbtGuardInterval>(
+                        settings.get<TunerFrontendSettings::isdbt>().guardInterval),
+                .serviceAreaId = static_cast<uint32_t>(
+                        settings.get<TunerFrontendSettings::isdbt>().serviceAreaId),
+            });
+            break;
+        default:
+            break;
+    }
+    Result status = mFrontend->scan(
+            frontendSettings, static_cast<FrontendScanType>(frontendScanType));
+    if (status == Result::SUCCESS) {
+        return Status::ok();
+    }
+
+    return Status::fromServiceSpecificError(static_cast<int32_t>(status));
+}
+
+Status TunerFrontend::stopScan() {
+    return Status::ok();
+}
+
+Status TunerFrontend::setLnb(int /*lnbHandle*/) {
+    return Status::ok();
+}
+
+Status TunerFrontend::setLna(bool /*bEnable*/) {
+    return Status::ok();
+}
+
+Status TunerFrontend::close() {
+    return Status::ok();
+}
+
+Status TunerFrontend::getStatus(const std::vector<int32_t>& /*statusTypes*/,
+		std::vector<TunerFrontendStatus>* /*_aidl_return*/) {
+    return Status::ok();
+}
+
+/////////////// FrontendCallback ///////////////////////
+
+Return<void> TunerFrontend::FrontendCallback::onEvent(FrontendEventType frontendEventType) {
+    ALOGD("FrontendCallback::onEvent, type=%d", frontendEventType);
+    mTunerFrontendCallback->onEvent((int)frontendEventType);
+    return Void();
+}
+
+Return<void> TunerFrontend::FrontendCallback::onScanMessage(
+        FrontendScanMessageType type, const FrontendScanMessage& message) {
+    ALOGD("FrontendCallback::onScanMessage, type=%d", type);
+    switch(type) {
+        case FrontendScanMessageType::LOCKED: {
+            if (message.isLocked()) {
+                mTunerFrontendCallback->onLocked();
+            }
+            break;
+        }
+        case FrontendScanMessageType::END: {
+            if (message.isEnd()) {
+                mTunerFrontendCallback->onScanStopped();
+            }
+            break;
+        }
+        case FrontendScanMessageType::PROGRESS_PERCENT: {
+            mTunerFrontendCallback->onProgress((int)message.progressPercent());
+            break;
+        }
+        case FrontendScanMessageType::FREQUENCY: {
+            auto f = message.frequencies();
+            std::vector<int32_t> frequencies(std::begin(f), std::end(f));
+            mTunerFrontendCallback->onFrequenciesReport(frequencies);
+            break;
+        }
+        case FrontendScanMessageType::SYMBOL_RATE: {
+            auto s = message.symbolRates();
+            std::vector<int32_t> symbolRates(std::begin(s), std::end(s));
+            mTunerFrontendCallback->onSymbolRates(symbolRates);
+            break;
+        }
+        case FrontendScanMessageType::HIERARCHY: {
+            mTunerFrontendCallback->onHierarchy((int)message.hierarchy());
+            break;
+        }
+        case FrontendScanMessageType::ANALOG_TYPE: {
+            mTunerFrontendCallback->onSignalType((int)message.analogType());
+            break;
+        }
+        case FrontendScanMessageType::PLP_IDS: {
+            auto p = message.plpIds();
+            std::vector<int32_t> plpIds(std::begin(p), std::end(p));
+            mTunerFrontendCallback->onPlpIds(plpIds);
+            break;
+        }
+        case FrontendScanMessageType::GROUP_IDS: {
+            auto g = message.groupIds();
+            std::vector<int32_t> groupIds(std::begin(g), std::end(g));
+            mTunerFrontendCallback->onGroupIds(groupIds);
+            break;
+        }
+        case FrontendScanMessageType::INPUT_STREAM_IDS: {
+            auto i = message.inputStreamIds();
+            std::vector<int32_t> streamIds(std::begin(i), std::end(i));
+            mTunerFrontendCallback->onInputStreamIds(streamIds);
+            break;
+        }
+        case FrontendScanMessageType::STANDARD: {
+            FrontendScanMessage::Standard std = message.std();
+            int standard;
+            if (std.getDiscriminator() == FrontendScanMessage::Standard::hidl_discriminator::sStd) {
+                standard = (int) std.sStd();
+                mTunerFrontendCallback->onDvbsStandard(standard);
+            } else if (std.getDiscriminator() ==
+                    FrontendScanMessage::Standard::hidl_discriminator::tStd) {
+                standard = (int) std.tStd();
+                mTunerFrontendCallback->onDvbsStandard(standard);
+            } else if (std.getDiscriminator() ==
+                    FrontendScanMessage::Standard::hidl_discriminator::sifStd) {
+                standard = (int) std.sifStd();
+                mTunerFrontendCallback->onAnalogSifStandard(standard);
+            }
+            break;
+        }
+        case FrontendScanMessageType::ATSC3_PLP_INFO: {
+            std::vector<FrontendScanAtsc3PlpInfo> plpInfos = message.atsc3PlpInfos();
+            std::vector<TunerAtsc3PlpInfo> tunerPlpInfos;
+            for (int i = 0; i < plpInfos.size(); i++) {
+                auto info = plpInfos[i];
+                int plpId = (int) info.plpId;
+                bool lls = (bool) info.bLlsFlag;
+                TunerAtsc3PlpInfo plpInfo{
+                    .plpId = plpId,
+                    .llsFlag = lls,
+                };
+                tunerPlpInfos.push_back(plpInfo);
+            }
+            mTunerFrontendCallback->onAtsc3PlpInfos(tunerPlpInfos);
+            break;
+        }
+        default:
+            break;
+    }
+    return Void();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+hidl_vec<FrontendAtsc3PlpSettings> TunerFrontend::getAtsc3PlpSettings(
+        const TunerFrontendAtsc3Settings& settings) {
+    int len = settings.plpSettings.size();
+    hidl_vec<FrontendAtsc3PlpSettings> plps = hidl_vec<FrontendAtsc3PlpSettings>(len);
+    // parse PLP settings
+    for (int i = 0; i < len; i++) {
+        uint8_t plpId = static_cast<uint8_t>(settings.plpSettings[i].plpId);
+        FrontendAtsc3Modulation modulation =
+                static_cast<FrontendAtsc3Modulation>(settings.plpSettings[i].modulation);
+        FrontendAtsc3TimeInterleaveMode interleaveMode =
+                static_cast<FrontendAtsc3TimeInterleaveMode>(
+                        settings.plpSettings[i].interleaveMode);
+        FrontendAtsc3CodeRate codeRate =
+                static_cast<FrontendAtsc3CodeRate>(settings.plpSettings[i].codeRate);
+        FrontendAtsc3Fec fec =
+                static_cast<FrontendAtsc3Fec>(settings.plpSettings[i].fec);
+        FrontendAtsc3PlpSettings frontendAtsc3PlpSettings {
+                .plpId = plpId,
+                .modulation = modulation,
+                .interleaveMode = interleaveMode,
+                .codeRate = codeRate,
+                .fec = fec,
+        };
+        plps[i] = frontendAtsc3PlpSettings;
+    }
+    return plps;
+}
+
+FrontendDvbsCodeRate TunerFrontend::getDvbsCodeRate(const TunerFrontendDvbsCodeRate& codeRate) {
+    FrontendInnerFec innerFec = static_cast<FrontendInnerFec>(codeRate.fec);
+    bool isLinear = codeRate.isLinear;
+    bool isShortFrames = codeRate.isShortFrames;
+    uint32_t bitsPer1000Symbol = static_cast<uint32_t>(codeRate.bitsPer1000Symbol);
+    FrontendDvbsCodeRate coderate {
+            .fec = innerFec,
+            .isLinear = isLinear,
+            .isShortFrames = isShortFrames,
+            .bitsPer1000Symbol = bitsPer1000Symbol,
+    };
+    return coderate;
+}
+}  // namespace android
diff --git a/services/tuner/TunerFrontend.h b/services/tuner/TunerFrontend.h
new file mode 100644
index 0000000..c7d3ddd
--- /dev/null
+++ b/services/tuner/TunerFrontend.h
@@ -0,0 +1,87 @@
+/**
+ * Copyright 2020, 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.
+ */
+
+#ifndef ANDROID_MEDIA_TUNERFRONTEND_H
+#define ANDROID_MEDIA_TUNERFRONTEND_H
+
+#include <aidl/android/media/tv/tuner/BnTunerFrontend.h>
+#include <android/hardware/tv/tuner/1.0/ITuner.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <utils/Log.h>
+
+using Status = ::ndk::ScopedAStatus;
+using ::aidl::android::media::tv::tuner::BnTunerFrontend;
+using ::aidl::android::media::tv::tuner::ITunerFrontendCallback;
+using ::aidl::android::media::tv::tuner::TunerFrontendAtsc3Settings;
+using ::aidl::android::media::tv::tuner::TunerFrontendDvbsCodeRate;
+using ::aidl::android::media::tv::tuner::TunerFrontendSettings;
+using ::aidl::android::media::tv::tuner::TunerFrontendStatus;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::tv::tuner::V1_0::FrontendAtsc3PlpSettings;
+using ::android::hardware::tv::tuner::V1_0::FrontendDvbsCodeRate;
+using ::android::hardware::tv::tuner::V1_0::FrontendEventType;
+using ::android::hardware::tv::tuner::V1_0::FrontendId;
+using ::android::hardware::tv::tuner::V1_0::FrontendScanMessage;
+using ::android::hardware::tv::tuner::V1_0::FrontendScanMessageType;
+using ::android::hardware::tv::tuner::V1_0::IFrontend;
+using ::android::hardware::tv::tuner::V1_0::IFrontendCallback;
+using ::android::hardware::tv::tuner::V1_0::ITuner;
+
+
+namespace android {
+
+class TunerFrontend : public BnTunerFrontend {
+
+public:
+    TunerFrontend(sp<ITuner> tuner, int frontendHandle);
+    virtual ~TunerFrontend();
+    Status setCallback(
+            const std::shared_ptr<ITunerFrontendCallback>& tunerFrontendCallback) override;
+    Status tune(const TunerFrontendSettings& settings) override;
+    Status stopTune() override;
+    Status scan(const TunerFrontendSettings& settings, int frontendScanType) override;
+    Status stopScan() override;
+    Status setLnb(int lnbHandle) override;
+    Status setLna(bool bEnable) override;
+    Status close() override;
+    Status getStatus(const std::vector<int32_t>& statusTypes,
+            std::vector<TunerFrontendStatus>* _aidl_return) override;
+
+    struct FrontendCallback : public IFrontendCallback {
+        FrontendCallback(const std::shared_ptr<ITunerFrontendCallback> tunerFrontendCallback)
+                : mTunerFrontendCallback(tunerFrontendCallback) {};
+
+        virtual Return<void> onEvent(FrontendEventType frontendEventType);
+        virtual Return<void> onScanMessage(
+                FrontendScanMessageType type, const FrontendScanMessage& message);
+
+        std::shared_ptr<ITunerFrontendCallback> mTunerFrontendCallback;
+    };
+
+private:
+    hidl_vec<FrontendAtsc3PlpSettings> getAtsc3PlpSettings(
+            const TunerFrontendAtsc3Settings& settings);
+    FrontendDvbsCodeRate getDvbsCodeRate(const TunerFrontendDvbsCodeRate& codeRate);
+    int mId;
+    sp<ITuner> mTuner;
+    sp<IFrontend> mFrontend;
+};
+
+} // namespace android
+
+#endif // ANDROID_MEDIA_TUNERFRONTEND_H
diff --git a/services/tuner/TunerService.cpp b/services/tuner/TunerService.cpp
index 77250aa..2b3de17 100644
--- a/services/tuner/TunerService.cpp
+++ b/services/tuner/TunerService.cpp
@@ -18,6 +18,7 @@
 
 #include <android/binder_manager.h>
 #include <utils/Log.h>
+#include "TunerFrontend.h"
 #include "TunerService.h"
 
 using ::aidl::android::media::tv::tuner::TunerFrontendAnalogCapabilities;
@@ -46,17 +47,17 @@
     std::shared_ptr<TunerService> service =
             ::ndk::SharedRefBase::make<TunerService>();
     AServiceManager_addService(service->asBinder().get(), getServiceName());
+    mTuner = ITuner::getService();
+    if (mTuner == nullptr) {
+        ALOGE("Failed to get ITuner service.");
+    }
 }
 
 Status TunerService::getFrontendIds(std::vector<int32_t>* ids, int32_t* /* _aidl_return */) {
     if (mTuner == nullptr) {
-        // TODO: create a method for init.
-        mTuner = ITuner::getService();
-        if (mTuner == nullptr) {
-            ALOGE("Failed to get ITuner service.");
-            return ::ndk::ScopedAStatus::fromServiceSpecificError(
-                    static_cast<int32_t>(Result::UNAVAILABLE));
-        }
+        ALOGE("ITuner service is not init.");
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(
+                static_cast<int32_t>(Result::UNAVAILABLE));
     }
     hidl_vec<FrontendId> feIds;
     Result res;
@@ -70,19 +71,15 @@
     ids->resize(feIds.size());
     std::copy(feIds.begin(), feIds.end(), ids->begin());
 
-    return ::ndk::ScopedAStatus::ok();
+    return Status::ok();
 }
 
 Status TunerService::getFrontendInfo(
         int32_t frontendHandle, TunerServiceFrontendInfo* _aidl_return) {
     if (mTuner == nullptr) {
-        // TODO: create a method for init.
-        mTuner = ITuner::getService();
-        if (mTuner == nullptr) {
-            ALOGE("Failed to get ITuner service.");
-            return ::ndk::ScopedAStatus::fromServiceSpecificError(
-                    static_cast<int32_t>(Result::UNAVAILABLE));
-        }
+        ALOGE("ITuner service is not init.");
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(
+                static_cast<int32_t>(Result::UNAVAILABLE));
     }
 
     Result res;
@@ -93,12 +90,24 @@
         res = r;
     });
     if (res != Result::SUCCESS) {
-        return ::ndk::ScopedAStatus::fromServiceSpecificError(static_cast<int32_t>(res));
+        return Status::fromServiceSpecificError(static_cast<int32_t>(res));
     }
 
     TunerServiceFrontendInfo tunerInfo = convertToAidlFrontendInfo(feId, info);
     *_aidl_return = tunerInfo;
-    return ::ndk::ScopedAStatus::ok();
+    return Status::ok();
+}
+
+Status TunerService::openFrontend(
+        int32_t frontendHandle, std::shared_ptr<ITunerFrontend>* _aidl_return) {
+    if (mTuner == nullptr) {
+        ALOGE("ITuner service is not init.");
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(
+                static_cast<int32_t>(Result::UNAVAILABLE));
+    }
+
+    *_aidl_return = ::ndk::SharedRefBase::make<TunerFrontend>(mTuner, frontendHandle);
+    return Status::ok();
 }
 
 TunerServiceFrontendInfo TunerService::convertToAidlFrontendInfo(int feId, FrontendInfo halInfo) {
@@ -212,8 +221,4 @@
     info.caps = caps;
     return info;
 }
-
-int TunerService::getResourceIdFromHandle(int resourceHandle) {
-    return (resourceHandle & 0x00ff0000) >> 16;
-}
 } // namespace android
diff --git a/services/tuner/TunerService.h b/services/tuner/TunerService.h
index f3d5ff7..36ccd3e 100644
--- a/services/tuner/TunerService.h
+++ b/services/tuner/TunerService.h
@@ -23,6 +23,7 @@
 
 using Status = ::ndk::ScopedAStatus;
 using ::aidl::android::media::tv::tuner::BnTunerService;
+using ::aidl::android::media::tv::tuner::ITunerFrontend;
 using ::aidl::android::media::tv::tuner::TunerServiceFrontendInfo;
 using ::android::hardware::tv::tuner::V1_0::FrontendInfo;
 using ::android::hardware::tv::tuner::V1_0::ITuner;
@@ -36,13 +37,19 @@
     static void instantiate();
     TunerService();
     virtual ~TunerService();
+
+    static int getResourceIdFromHandle(int resourceHandle) {
+        return (resourceHandle & 0x00ff0000) >> 16;
+    }
+
     Status getFrontendIds(std::vector<int32_t>* ids, int32_t* _aidl_return) override;
     Status getFrontendInfo(int32_t frontendHandle, TunerServiceFrontendInfo* _aidl_return) override;
+    Status openFrontend(
+            int32_t frontendHandle, std::shared_ptr<ITunerFrontend>* _aidl_return) override;
 
 private:
     static sp<ITuner> mTuner;
 
-    int getResourceIdFromHandle(int resourceHandle);
     TunerServiceFrontendInfo convertToAidlFrontendInfo(int feId, FrontendInfo halInfo);
 };
 
diff --git a/services/tuner/aidl/android/media/tv/tuner/ITunerFrontend.aidl b/services/tuner/aidl/android/media/tv/tuner/ITunerFrontend.aidl
new file mode 100644
index 0000000..08d20a9
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/ITunerFrontend.aidl
@@ -0,0 +1,85 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+import android.media.tv.tuner.ITunerFrontendCallback;
+import android.media.tv.tuner.TunerFrontendSettings;
+import android.media.tv.tuner.TunerFrontendStatus;
+import android.media.tv.tuner.TunerServiceFrontendInfo;
+
+/**
+ * Tuner Frontend interface handles tuner related operations.
+ *
+ * {@hide}
+ */
+interface ITunerFrontend {
+    /**
+     * Set the frontend callback.
+     *
+     * @param tunerFrontendCallback the callback to receive frontend related info.
+     */
+    void setCallback(in ITunerFrontendCallback tunerFrontendCallback);
+
+    /**
+     * Tunes the frontend to using the settings given.
+     *
+     * @param settings the settings to tune with.
+     */
+    void tune(in TunerFrontendSettings settings);
+
+    /**
+     * Stop the previous tuning.
+     */
+    void stopTune();
+
+    /**
+     * Scan the frontend to use the settings given.
+     *
+     * @param settings the settings to scan with.
+     * @param frontendScanType scan with given type.
+     */
+    void scan(in TunerFrontendSettings settings, in int frontendScanType);
+
+    /**
+     * Stop the previous scanning.
+     */
+    void stopScan();
+
+    /**
+     * Sets Low-Noise Block downconverter (LNB) for satellite frontend.
+     *
+     * @param lnbHandle lnb handle in use.
+     */
+    void setLnb(in int lnbHandle);
+
+    /**
+     * Enable or Disable Low Noise Amplifier (LNA).
+     *
+     * @param bEnable enable Lna or not.
+     */
+    void setLna(in boolean bEnable);
+
+    /**
+     * Releases the ITunerFrontend instance.
+     */
+    void close();
+
+    /**
+     * Gets the statuses of the frontend.
+     */
+    TunerFrontendStatus[] getStatus(in int[] statusTypes);
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/ITunerFrontendCallback.aidl b/services/tuner/aidl/android/media/tv/tuner/ITunerFrontendCallback.aidl
new file mode 100644
index 0000000..ae62c15
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/ITunerFrontendCallback.aidl
@@ -0,0 +1,96 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+import android.media.tv.tuner.TunerAtsc3PlpInfo;
+
+/**
+ * TunerFrontendCallback interface handles tuner frontend related callbacks.
+ *
+ * {@hide}
+ */
+interface ITunerFrontendCallback {
+    /**
+     * Notify the client that a new event happened on the frontend.
+     */
+    void onEvent(in int frontendEventType);
+
+    /**
+     * notify locked message to client from the ongoing scan.
+     */
+    void onLocked();
+
+    /**
+     * notify scan stopped message to client from the ongoing scan.
+     */
+    void onScanStopped();
+
+    /**
+     * notify progress message to client from the ongoing scan.
+     */
+    void onProgress(in int percent);
+
+    /**
+     * notify Frequencies message to client from the ongoing scan.
+     */
+    void onFrequenciesReport(in int[] frequency);
+
+    /**
+     * notify SymbolRates message to client from the ongoing scan.
+     */
+    void onSymbolRates(in int[] rates);
+
+    /**
+     * notify Hierarchy message to client from the ongoing scan.
+     */
+    void onHierarchy(in int hierarchy);
+
+    /**
+     * notify SignalType message to client from the ongoing scan.
+     */
+    void onSignalType(in int signalType);
+
+    /**
+     * notify PlpIds message to client from the ongoing scan.
+     */
+    void onPlpIds(in int[] plpIds);
+
+    /**
+     * notify GroupIds message to client from the ongoing scan.
+     */
+    void onGroupIds(in int[] groupIds);
+
+    /**
+     * notify InputStreamIds message to client from the ongoing scan.
+     */
+    void onInputStreamIds(in int[] inputStreamIds);
+
+    /**
+     * notify DvbsStandard message to client from the ongoing scan.
+     */
+    void onDvbsStandard(in int dvbsStandandard);
+
+    /**
+     * notify AnalogSifStandard message to client from the ongoing scan.
+     */
+    void onAnalogSifStandard(in int sifStandandard);
+
+    /**
+     * notify Atsc3PlpInfos message to client from the ongoing scan.
+     */
+    void onAtsc3PlpInfos(in TunerAtsc3PlpInfo[] atsc3PlpInfos);
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/ITunerService.aidl b/services/tuner/aidl/android/media/tv/tuner/ITunerService.aidl
index 1d3671d..5a0b47d 100644
--- a/services/tuner/aidl/android/media/tv/tuner/ITunerService.aidl
+++ b/services/tuner/aidl/android/media/tv/tuner/ITunerService.aidl
@@ -16,6 +16,7 @@
 
 package android.media.tv.tuner;
 
+import android.media.tv.tuner.ITunerFrontend;
 import android.media.tv.tuner.TunerServiceFrontendInfo;
 
 /**
@@ -36,7 +37,15 @@
      * Retrieve the frontend's information.
      *
      * @param frontendHandle the handle of the frontend granted by TRM.
-     * @return the information for the frontend.
+     * @return the information of the frontend.
      */
     TunerServiceFrontendInfo getFrontendInfo(in int frontendHandle);
+
+    /**
+     * Open a Tuner Frontend interface.
+     *
+     * @param frontendHandle the handle of the frontend granted by TRM.
+     * @return the aidl interface of the frontend.
+     */
+    ITunerFrontend openFrontend(in int frontendHandle);
 }
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerAtsc3PlpInfo.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerAtsc3PlpInfo.aidl
new file mode 100644
index 0000000..a0648a5
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerAtsc3PlpInfo.aidl
@@ -0,0 +1,28 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Atsc3 Frontend Physical Layer Pipe Info.
+ *
+ * {@hide}
+ */
+parcelable TunerAtsc3PlpInfo {
+    int plpId;
+
+    boolean llsFlag;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAnalogSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAnalogSettings.aidl
new file mode 100644
index 0000000..b6d07c3
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAnalogSettings.aidl
@@ -0,0 +1,36 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Analog Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendAnalogSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int signalType;
+
+    /**
+     * Standard Interchange Format (SIF) setting
+     */
+    int sifStandard;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtsc3PlpSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtsc3PlpSettings.aidl
new file mode 100644
index 0000000..b29e1f7
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtsc3PlpSettings.aidl
@@ -0,0 +1,37 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Atsc3 Frontend Physical Layer Pipe Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendAtsc3PlpSettings {
+    int plpId;
+
+    int modulation;
+
+    int interleaveMode;
+
+    int codeRate;
+
+    /**
+     * Forward Error Correction Type.
+     */
+    int fec;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtsc3Settings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtsc3Settings.aidl
new file mode 100644
index 0000000..32fb8c7
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtsc3Settings.aidl
@@ -0,0 +1,40 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+import android.media.tv.tuner.TunerFrontendAtsc3PlpSettings;
+
+/**
+ * Atsc3 Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendAtsc3Settings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    /**
+     * Bandwidth of tuning band.
+     */
+    int bandwidth;
+
+    int demodOutputFormat;
+
+    TunerFrontendAtsc3PlpSettings[] plpSettings;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtscSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtscSettings.aidl
new file mode 100644
index 0000000..c7a8c07
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendAtscSettings.aidl
@@ -0,0 +1,31 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Atsc Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendAtscSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int modulation;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendCableSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendCableSettings.aidl
new file mode 100644
index 0000000..3984f2c
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendCableSettings.aidl
@@ -0,0 +1,54 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Cable Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendCableSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int modulation;
+
+    /**
+     * Inner Forward Error Correction type as specified in ETSI EN 300 468 V1.15.1
+     * and ETSI EN 302 307-2 V1.1.1.
+     */
+    long innerFec;
+
+    /**
+     * Symbols per second
+     */
+    int symbolRate;
+
+    /**
+     * Outer Forward Error Correction (FEC) Type.
+     */
+    int outerFec;
+
+    int annex;
+
+    /**
+     * Spectral Inversion Type.
+     */
+    int spectralInversion;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbsCodeRate.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbsCodeRate.aidl
new file mode 100644
index 0000000..59b7de3
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbsCodeRate.aidl
@@ -0,0 +1,42 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Dvbs Frontend CodeRate interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendDvbsCodeRate {
+    /**
+     * Inner Forward Error Correction type as specified in ETSI EN 300 468 V1.15.1
+     * and ETSI EN 302 307-2 V1.1.1.
+     */
+    long fec;
+
+    boolean isLinear;
+
+    /**
+     * true if enable short frame
+     */
+    boolean isShortFrames;
+
+    /**
+     * bits number in 1000 symbol. 0 if use the default.
+     */
+    int bitsPer1000Symbol;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbsSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbsSettings.aidl
new file mode 100644
index 0000000..554a502
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbsSettings.aidl
@@ -0,0 +1,56 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+import android.media.tv.tuner.TunerFrontendDvbsCodeRate;
+
+/**
+ * Dvbs Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendDvbsSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int modulation;
+
+    TunerFrontendDvbsCodeRate codeRate;
+
+    int symbolRate;
+
+    /**
+     * Roll off type.
+     */
+    int rolloff;
+
+    /**
+     * Pilot mode.
+     */
+    int pilot;
+
+    int inputStreamId;
+
+    int standard;
+
+    /**
+     * Vcm mode.
+     */
+    int vcm;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbtSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbtSettings.aidl
new file mode 100644
index 0000000..c72396b
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendDvbtSettings.aidl
@@ -0,0 +1,70 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Dvbt Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendDvbtSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int transmissionMode;
+
+    int bandwidth;
+
+    int constellation;
+
+    int hierarchy;
+
+    /**
+     * Code Rate for High Priority level
+     */
+    int hpCodeRate;
+
+    /**
+     * Code Rate for Low Priority level
+     */
+    int lpCodeRate;
+
+    int guardInterval;
+
+    boolean isHighPriority;
+
+    int standard;
+
+    boolean isMiso;
+
+    /**
+     * Physical Layer Pipe (PLP) mode
+     */
+    int plpMode;
+
+    /**
+     * Physical Layer Pipe (PLP) Id
+     */
+    int plpId;
+
+    /**
+     * Physical Layer Pipe (PLP) Group Id
+     */
+    int plpGroupId;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbs3Settings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbs3Settings.aidl
new file mode 100644
index 0000000..0923868
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbs3Settings.aidl
@@ -0,0 +1,44 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Isdbs3 Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendIsdbs3Settings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int streamId;
+
+    int streamIdType;
+
+    int modulation;
+
+    int codeRate;
+
+    /**
+     * Symbols per second
+     */
+    int symbolRate;
+
+    int rolloff;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbsSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbsSettings.aidl
new file mode 100644
index 0000000..2ae9092
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbsSettings.aidl
@@ -0,0 +1,44 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Isdbs Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendIsdbsSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int streamId;
+
+    int streamIdType;
+
+    int modulation;
+
+    int codeRate;
+
+    /**
+     * Symbols per second
+     */
+    int symbolRate;
+
+    int rolloff;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbtSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbtSettings.aidl
new file mode 100644
index 0000000..191f3a6
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendIsdbtSettings.aidl
@@ -0,0 +1,41 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Isdbt Frontend Settings interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendIsdbtSettings {
+    /**
+     * Signal frequency in Hertz
+     */
+    int frequency;
+
+    int modulation;
+
+    int bandwidth;
+
+    int mode;
+
+    int codeRate;
+
+    int guardInterval;
+
+    int serviceAreaId;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendSettings.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendSettings.aidl
new file mode 100644
index 0000000..a382941
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendSettings.aidl
@@ -0,0 +1,52 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+import android.media.tv.tuner.TunerFrontendAnalogSettings;
+import android.media.tv.tuner.TunerFrontendAtscSettings;
+import android.media.tv.tuner.TunerFrontendAtsc3Settings;
+import android.media.tv.tuner.TunerFrontendCableSettings;
+import android.media.tv.tuner.TunerFrontendDvbsSettings;
+import android.media.tv.tuner.TunerFrontendDvbtSettings;
+import android.media.tv.tuner.TunerFrontendIsdbsSettings;
+import android.media.tv.tuner.TunerFrontendIsdbs3Settings;
+import android.media.tv.tuner.TunerFrontendIsdbtSettings;
+
+/**
+ * Analog Frontend Settings interface.
+ *
+ * {@hide}
+ */
+union TunerFrontendSettings {
+    TunerFrontendAnalogSettings analog;
+
+    TunerFrontendAtscSettings atsc;
+
+    TunerFrontendAtsc3Settings atsc3;
+
+    TunerFrontendCableSettings cable;
+
+    TunerFrontendDvbsSettings dvbs;
+
+    TunerFrontendDvbtSettings dvbt;
+
+    TunerFrontendIsdbsSettings isdbs;
+
+    TunerFrontendIsdbs3Settings isdbs3;
+
+    TunerFrontendIsdbtSettings isdbt;
+}
diff --git a/services/tuner/aidl/android/media/tv/tuner/TunerFrontendStatus.aidl b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendStatus.aidl
new file mode 100644
index 0000000..41f9f0e
--- /dev/null
+++ b/services/tuner/aidl/android/media/tv/tuner/TunerFrontendStatus.aidl
@@ -0,0 +1,24 @@
+/**
+ * Copyright 2020, 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.media.tv.tuner;
+
+/**
+ * Tuner Frontend Status interface.
+ *
+ * {@hide}
+ */
+parcelable TunerFrontendStatus {}