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diff --git a/wifi/1.6/default/wifi_sta_iface.h b/wifi/1.6/default/wifi_sta_iface.h
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+++ b/wifi/1.6/default/wifi_sta_iface.h
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+/*
+ * 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.
+ */
+
+#ifndef WIFI_STA_IFACE_H_
+#define WIFI_STA_IFACE_H_
+
+#include <android-base/macros.h>
+#include <android/hardware/wifi/1.0/IWifiStaIfaceEventCallback.h>
+#include <android/hardware/wifi/1.5/IWifiStaIface.h>
+
+#include "hidl_callback_util.h"
+#include "wifi_iface_util.h"
+#include "wifi_legacy_hal.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_6 {
+namespace implementation {
+using namespace android::hardware::wifi::V1_0;
+
+/**
+ * HIDL interface object used to control a STA Iface instance.
+ */
+class WifiStaIface : public V1_5::IWifiStaIface {
+  public:
+    WifiStaIface(const std::string& ifname,
+                 const std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal,
+                 const std::weak_ptr<iface_util::WifiIfaceUtil> iface_util);
+    // Refer to |WifiChip::invalidate()|.
+    void invalidate();
+    bool isValid();
+    std::set<sp<IWifiStaIfaceEventCallback>> getEventCallbacks();
+    std::string getName();
+
+    // HIDL methods exposed.
+    Return<void> getName(getName_cb hidl_status_cb) override;
+    Return<void> getType(getType_cb hidl_status_cb) override;
+    Return<void> registerEventCallback(const sp<IWifiStaIfaceEventCallback>& callback,
+                                       registerEventCallback_cb hidl_status_cb) override;
+    Return<void> getCapabilities(getCapabilities_cb hidl_status_cb) override;
+    Return<void> getApfPacketFilterCapabilities(
+            getApfPacketFilterCapabilities_cb hidl_status_cb) override;
+    Return<void> installApfPacketFilter(uint32_t cmd_id, const hidl_vec<uint8_t>& program,
+                                        installApfPacketFilter_cb hidl_status_cb) override;
+    Return<void> readApfPacketFilterData(readApfPacketFilterData_cb hidl_status_cb) override;
+    Return<void> getBackgroundScanCapabilities(
+            getBackgroundScanCapabilities_cb hidl_status_cb) override;
+    Return<void> getValidFrequenciesForBand(V1_0::WifiBand band,
+                                            getValidFrequenciesForBand_cb hidl_status_cb) override;
+    Return<void> startBackgroundScan(uint32_t cmd_id, const StaBackgroundScanParameters& params,
+                                     startBackgroundScan_cb hidl_status_cb) override;
+    Return<void> stopBackgroundScan(uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) override;
+    Return<void> enableLinkLayerStatsCollection(
+            bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) override;
+    Return<void> disableLinkLayerStatsCollection(
+            disableLinkLayerStatsCollection_cb hidl_status_cb) override;
+    Return<void> getLinkLayerStats(getLinkLayerStats_cb hidl_status_cb) override;
+    Return<void> getLinkLayerStats_1_3(getLinkLayerStats_1_3_cb hidl_status_cb) override;
+    Return<void> getLinkLayerStats_1_5(getLinkLayerStats_1_5_cb hidl_status_cb) override;
+    Return<void> startRssiMonitoring(uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi,
+                                     startRssiMonitoring_cb hidl_status_cb) override;
+    Return<void> stopRssiMonitoring(uint32_t cmd_id, stopRssiMonitoring_cb hidl_status_cb) override;
+    Return<void> getRoamingCapabilities(getRoamingCapabilities_cb hidl_status_cb) override;
+    Return<void> configureRoaming(const StaRoamingConfig& config,
+                                  configureRoaming_cb hidl_status_cb) override;
+    Return<void> setRoamingState(StaRoamingState state, setRoamingState_cb hidl_status_cb) override;
+    Return<void> enableNdOffload(bool enable, enableNdOffload_cb hidl_status_cb) override;
+    Return<void> startSendingKeepAlivePackets(
+            uint32_t cmd_id, const hidl_vec<uint8_t>& ip_packet_data, uint16_t ether_type,
+            const hidl_array<uint8_t, 6>& src_address, const hidl_array<uint8_t, 6>& dst_address,
+            uint32_t period_in_ms, startSendingKeepAlivePackets_cb hidl_status_cb) override;
+    Return<void> stopSendingKeepAlivePackets(
+            uint32_t cmd_id, stopSendingKeepAlivePackets_cb hidl_status_cb) override;
+    Return<void> setScanningMacOui(const hidl_array<uint8_t, 3>& oui,
+                                   setScanningMacOui_cb hidl_status_cb) override;
+    Return<void> startDebugPacketFateMonitoring(
+            startDebugPacketFateMonitoring_cb hidl_status_cb) override;
+    Return<void> getDebugTxPacketFates(getDebugTxPacketFates_cb hidl_status_cb) override;
+    Return<void> getDebugRxPacketFates(getDebugRxPacketFates_cb hidl_status_cb) override;
+    Return<void> setMacAddress(const hidl_array<uint8_t, 6>& mac,
+                               setMacAddress_cb hidl_status_cb) override;
+    Return<void> getFactoryMacAddress(getFactoryMacAddress_cb hidl_status_cb) override;
+    Return<void> setScanMode(bool enable, setScanMode_cb hidl_status_cb) override;
+
+  private:
+    // Corresponding worker functions for the HIDL methods.
+    std::pair<WifiStatus, std::string> getNameInternal();
+    std::pair<WifiStatus, IfaceType> getTypeInternal();
+    WifiStatus registerEventCallbackInternal(const sp<IWifiStaIfaceEventCallback>& callback);
+    std::pair<WifiStatus, uint32_t> getCapabilitiesInternal();
+    std::pair<WifiStatus, StaApfPacketFilterCapabilities> getApfPacketFilterCapabilitiesInternal();
+    WifiStatus installApfPacketFilterInternal(uint32_t cmd_id, const std::vector<uint8_t>& program);
+    std::pair<WifiStatus, std::vector<uint8_t>> readApfPacketFilterDataInternal();
+    std::pair<WifiStatus, StaBackgroundScanCapabilities> getBackgroundScanCapabilitiesInternal();
+    std::pair<WifiStatus, std::vector<WifiChannelInMhz>> getValidFrequenciesForBandInternal(
+            V1_0::WifiBand band);
+    WifiStatus startBackgroundScanInternal(uint32_t cmd_id,
+                                           const StaBackgroundScanParameters& params);
+    WifiStatus stopBackgroundScanInternal(uint32_t cmd_id);
+    WifiStatus enableLinkLayerStatsCollectionInternal(bool debug);
+    WifiStatus disableLinkLayerStatsCollectionInternal();
+    std::pair<WifiStatus, V1_0::StaLinkLayerStats> getLinkLayerStatsInternal();
+    std::pair<WifiStatus, V1_3::StaLinkLayerStats> getLinkLayerStatsInternal_1_3();
+    std::pair<WifiStatus, V1_5::StaLinkLayerStats> getLinkLayerStatsInternal_1_5();
+    WifiStatus startRssiMonitoringInternal(uint32_t cmd_id, int32_t max_rssi, int32_t min_rssi);
+    WifiStatus stopRssiMonitoringInternal(uint32_t cmd_id);
+    std::pair<WifiStatus, StaRoamingCapabilities> getRoamingCapabilitiesInternal();
+    WifiStatus configureRoamingInternal(const StaRoamingConfig& config);
+    WifiStatus setRoamingStateInternal(StaRoamingState state);
+    WifiStatus enableNdOffloadInternal(bool enable);
+    WifiStatus startSendingKeepAlivePacketsInternal(uint32_t cmd_id,
+                                                    const std::vector<uint8_t>& ip_packet_data,
+                                                    uint16_t ether_type,
+                                                    const std::array<uint8_t, 6>& src_address,
+                                                    const std::array<uint8_t, 6>& dst_address,
+                                                    uint32_t period_in_ms);
+    WifiStatus stopSendingKeepAlivePacketsInternal(uint32_t cmd_id);
+    WifiStatus setScanningMacOuiInternal(const std::array<uint8_t, 3>& oui);
+    WifiStatus startDebugPacketFateMonitoringInternal();
+    std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>> getDebugTxPacketFatesInternal();
+    std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>> getDebugRxPacketFatesInternal();
+    WifiStatus setMacAddressInternal(const std::array<uint8_t, 6>& mac);
+    std::pair<WifiStatus, std::array<uint8_t, 6>> getFactoryMacAddressInternal();
+    WifiStatus setScanModeInternal(bool enable);
+
+    std::string ifname_;
+    std::weak_ptr<legacy_hal::WifiLegacyHal> legacy_hal_;
+    std::weak_ptr<iface_util::WifiIfaceUtil> iface_util_;
+    bool is_valid_;
+    hidl_callback_util::HidlCallbackHandler<IWifiStaIfaceEventCallback> event_cb_handler_;
+
+    DISALLOW_COPY_AND_ASSIGN(WifiStaIface);
+};
+
+}  // namespace implementation
+}  // namespace V1_6
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_STA_IFACE_H_