diff --git a/wifi/1.6/default/wifi.cpp b/wifi/1.6/default/wifi.cpp
new file mode 100644
index 0000000..c302ce2
--- /dev/null
+++ b/wifi/1.6/default/wifi.cpp
@@ -0,0 +1,294 @@
+/*
+ * 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.
+ */
+
+#include <android-base/logging.h>
+
+#include "hidl_return_util.h"
+#include "wifi.h"
+#include "wifi_status_util.h"
+
+namespace {
+// Starting Chip ID, will be assigned to primary chip
+static constexpr android::hardware::wifi::V1_0::ChipId kPrimaryChipId = 0;
+}  // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_6 {
+namespace implementation {
+using hidl_return_util::validateAndCall;
+using hidl_return_util::validateAndCallWithLock;
+
+Wifi::Wifi(const std::shared_ptr<wifi_system::InterfaceTool> iface_tool,
+           const std::shared_ptr<legacy_hal::WifiLegacyHalFactory> legacy_hal_factory,
+           const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
+           const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags)
+    : iface_tool_(iface_tool),
+      legacy_hal_factory_(legacy_hal_factory),
+      mode_controller_(mode_controller),
+      feature_flags_(feature_flags),
+      run_state_(RunState::STOPPED) {}
+
+bool Wifi::isValid() {
+    // This object is always valid.
+    return true;
+}
+
+Return<void> Wifi::registerEventCallback(const sp<V1_0::IWifiEventCallback>& event_callback,
+                                         registerEventCallback_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
+                           &Wifi::registerEventCallbackInternal, hidl_status_cb, event_callback);
+}
+
+Return<void> Wifi::registerEventCallback_1_5(const sp<V1_5::IWifiEventCallback>& event_callback,
+                                             registerEventCallback_1_5_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN,
+                           &Wifi::registerEventCallbackInternal_1_5, hidl_status_cb,
+                           event_callback);
+}
+
+Return<bool> Wifi::isStarted() {
+    return run_state_ != RunState::STOPPED;
+}
+
+Return<void> Wifi::start(start_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN, &Wifi::startInternal,
+                           hidl_status_cb);
+}
+
+Return<void> Wifi::stop(stop_cb hidl_status_cb) {
+    return validateAndCallWithLock(this, WifiStatusCode::ERROR_UNKNOWN, &Wifi::stopInternal,
+                                   hidl_status_cb);
+}
+
+Return<void> Wifi::getChipIds(getChipIds_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN, &Wifi::getChipIdsInternal,
+                           hidl_status_cb);
+}
+
+Return<void> Wifi::getChip(ChipId chip_id, getChip_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_UNKNOWN, &Wifi::getChipInternal,
+                           hidl_status_cb, chip_id);
+}
+
+Return<void> Wifi::debug(const hidl_handle& handle, const hidl_vec<hidl_string>&) {
+    LOG(INFO) << "-----------Debug is called----------------";
+    if (chips_.size() == 0) {
+        return Void();
+    }
+
+    for (sp<WifiChip> chip : chips_) {
+        if (!chip.get()) continue;
+
+        chip->debug(handle, {});
+    }
+    return Void();
+}
+
+WifiStatus Wifi::registerEventCallbackInternal(
+        const sp<V1_0::IWifiEventCallback>& event_callback __unused) {
+    // Deprecated support for this callback.
+    return createWifiStatus(WifiStatusCode::ERROR_NOT_SUPPORTED);
+}
+
+WifiStatus Wifi::registerEventCallbackInternal_1_5(
+        const sp<V1_5::IWifiEventCallback>& event_callback) {
+    if (!event_cb_handler_.addCallback(event_callback)) {
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus Wifi::startInternal() {
+    if (run_state_ == RunState::STARTED) {
+        return createWifiStatus(WifiStatusCode::SUCCESS);
+    } else if (run_state_ == RunState::STOPPING) {
+        return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE, "HAL is stopping");
+    }
+    WifiStatus wifi_status = initializeModeControllerAndLegacyHal();
+    if (wifi_status.code == WifiStatusCode::SUCCESS) {
+        // Register the callback for subsystem restart
+        const auto& on_subsystem_restart_callback = [this](const std::string& error) {
+            WifiStatus wifi_status = createWifiStatus(WifiStatusCode::ERROR_UNKNOWN, error);
+            for (const auto& callback : event_cb_handler_.getCallbacks()) {
+                LOG(INFO) << "Attempting to invoke onSubsystemRestart "
+                             "callback";
+                if (!callback->onSubsystemRestart(wifi_status).isOk()) {
+                    LOG(ERROR) << "Failed to invoke onSubsystemRestart callback";
+                } else {
+                    LOG(INFO) << "Succeeded to invoke onSubsystemRestart "
+                                 "callback";
+                }
+            }
+        };
+
+        // Create the chip instance once the HAL is started.
+        android::hardware::wifi::V1_0::ChipId chipId = kPrimaryChipId;
+        for (auto& hal : legacy_hals_) {
+            chips_.push_back(
+                    new WifiChip(chipId, chipId == kPrimaryChipId, hal, mode_controller_,
+                                 std::make_shared<iface_util::WifiIfaceUtil>(iface_tool_, hal),
+                                 feature_flags_, on_subsystem_restart_callback));
+            chipId++;
+        }
+        run_state_ = RunState::STARTED;
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onStart().isOk()) {
+                LOG(ERROR) << "Failed to invoke onStart callback";
+            };
+        }
+        LOG(INFO) << "Wifi HAL started";
+    } else {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onFailure(wifi_status).isOk()) {
+                LOG(ERROR) << "Failed to invoke onFailure callback";
+            }
+        }
+        LOG(ERROR) << "Wifi HAL start failed";
+        // Clear the event callback objects since the HAL start failed.
+        event_cb_handler_.invalidate();
+    }
+    return wifi_status;
+}
+
+WifiStatus Wifi::stopInternal(
+        /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
+    if (run_state_ == RunState::STOPPED) {
+        return createWifiStatus(WifiStatusCode::SUCCESS);
+    } else if (run_state_ == RunState::STOPPING) {
+        return createWifiStatus(WifiStatusCode::ERROR_NOT_AVAILABLE, "HAL is stopping");
+    }
+    // Clear the chip object and its child objects since the HAL is now
+    // stopped.
+    for (auto& chip : chips_) {
+        if (chip.get()) {
+            chip->invalidate();
+            chip.clear();
+        }
+    }
+    chips_.clear();
+    WifiStatus wifi_status = stopLegacyHalAndDeinitializeModeController(lock);
+    if (wifi_status.code == WifiStatusCode::SUCCESS) {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onStop().isOk()) {
+                LOG(ERROR) << "Failed to invoke onStop callback";
+            };
+        }
+        LOG(INFO) << "Wifi HAL stopped";
+    } else {
+        for (const auto& callback : event_cb_handler_.getCallbacks()) {
+            if (!callback->onFailure(wifi_status).isOk()) {
+                LOG(ERROR) << "Failed to invoke onFailure callback";
+            }
+        }
+        LOG(ERROR) << "Wifi HAL stop failed";
+    }
+    // Clear the event callback objects since the HAL is now stopped.
+    event_cb_handler_.invalidate();
+    return wifi_status;
+}
+
+std::pair<WifiStatus, std::vector<ChipId>> Wifi::getChipIdsInternal() {
+    std::vector<ChipId> chip_ids;
+
+    for (auto& chip : chips_) {
+        ChipId chip_id = getChipIdFromWifiChip(chip);
+        if (chip_id != UINT32_MAX) chip_ids.emplace_back(chip_id);
+    }
+    return {createWifiStatus(WifiStatusCode::SUCCESS), std::move(chip_ids)};
+}
+
+std::pair<WifiStatus, sp<V1_4::IWifiChip>> Wifi::getChipInternal(ChipId chip_id) {
+    for (auto& chip : chips_) {
+        ChipId cand_id = getChipIdFromWifiChip(chip);
+        if ((cand_id != UINT32_MAX) && (cand_id == chip_id))
+            return {createWifiStatus(WifiStatusCode::SUCCESS), chip};
+    }
+
+    return {createWifiStatus(WifiStatusCode::ERROR_INVALID_ARGS), nullptr};
+}
+
+WifiStatus Wifi::initializeModeControllerAndLegacyHal() {
+    if (!mode_controller_->initialize()) {
+        LOG(ERROR) << "Failed to initialize firmware mode controller";
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+
+    legacy_hals_ = legacy_hal_factory_->getHals();
+    if (legacy_hals_.empty()) return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    int index = 0;  // for failure log
+    for (auto& hal : legacy_hals_) {
+        legacy_hal::wifi_error legacy_status = hal->initialize();
+        if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+            // Currently WifiLegacyHal::initialize does not allocate extra mem,
+            // only initializes the function table. If this changes, need to
+            // implement WifiLegacyHal::deinitialize and deinitalize the
+            // HALs already initialized
+            LOG(ERROR) << "Failed to initialize legacy HAL index: " << index
+                       << " error: " << legacyErrorToString(legacy_status);
+            return createWifiStatusFromLegacyError(legacy_status);
+        }
+        index++;
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus Wifi::stopLegacyHalAndDeinitializeModeController(
+        /* NONNULL */ std::unique_lock<std::recursive_mutex>* lock) {
+    legacy_hal::wifi_error legacy_status = legacy_hal::WIFI_SUCCESS;
+    int index = 0;
+
+    run_state_ = RunState::STOPPING;
+    for (auto& hal : legacy_hals_) {
+        legacy_hal::wifi_error tmp = hal->stop(lock, [&]() {});
+        if (tmp != legacy_hal::WIFI_SUCCESS) {
+            LOG(ERROR) << "Failed to stop legacy HAL index: " << index
+                       << " error: " << legacyErrorToString(legacy_status);
+            legacy_status = tmp;
+        }
+        index++;
+    }
+    run_state_ = RunState::STOPPED;
+
+    if (legacy_status != legacy_hal::WIFI_SUCCESS) {
+        LOG(ERROR) << "One or more legacy HALs failed to stop";
+        return createWifiStatusFromLegacyError(legacy_status);
+    }
+    if (!mode_controller_->deinitialize()) {
+        LOG(ERROR) << "Failed to deinitialize firmware mode controller";
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+ChipId Wifi::getChipIdFromWifiChip(sp<WifiChip>& chip) {
+    ChipId chip_id = UINT32_MAX;
+    if (chip.get()) {
+        chip->getId([&](WifiStatus status, uint32_t id) {
+            if (status.code == WifiStatusCode::SUCCESS) {
+                chip_id = id;
+            }
+        });
+    }
+
+    return chip_id;
+}
+}  // namespace implementation
+}  // namespace V1_6
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android