diff --git a/wifi/1.0/default/wifi_sta_iface.cpp b/wifi/1.0/default/wifi_sta_iface.cpp
index 83bd28d..1f220f3 100644
--- a/wifi/1.0/default/wifi_sta_iface.cpp
+++ b/wifi/1.0/default/wifi_sta_iface.cpp
@@ -33,6 +33,7 @@
 
 void WifiStaIface::invalidate() {
   legacy_hal_.reset();
+  event_callbacks_.clear();
   is_valid_ = false;
 }
 
@@ -54,6 +55,140 @@
                          hidl_status_cb);
 }
 
+Return<void> WifiStaIface::registerEventCallback(
+    const sp<IWifiStaIfaceEventCallback>& callback,
+    registerEventCallback_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::registerEventCallbackInternal,
+                         hidl_status_cb,
+                         callback);
+}
+
+Return<void> WifiStaIface::getCapabilities(getCapabilities_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::getCapabilitiesInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getApfPacketFilterCapabilities(
+    getApfPacketFilterCapabilities_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::getApfPacketFilterCapabilitiesInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::installApfPacketFilter(
+    uint32_t cmd_id,
+    const hidl_vec<uint8_t>& program,
+    installApfPacketFilter_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::installApfPacketFilterInternal,
+                         hidl_status_cb,
+                         cmd_id,
+                         program);
+}
+
+Return<void> WifiStaIface::getBackgroundScanCapabilities(
+    getBackgroundScanCapabilities_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::getBackgroundScanCapabilitiesInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getValidFrequenciesForBackgroundScan(
+    StaBackgroundScanBand band,
+    getValidFrequenciesForBackgroundScan_cb hidl_status_cb) {
+  return validateAndCall(
+      this,
+      WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+      &WifiStaIface::getValidFrequenciesForBackgroundScanInternal,
+      hidl_status_cb,
+      band);
+}
+
+Return<void> WifiStaIface::startBackgroundScan(
+    uint32_t cmd_id,
+    const StaBackgroundScanParameters& params,
+    startBackgroundScan_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::startBackgroundScanInternal,
+                         hidl_status_cb,
+                         cmd_id,
+                         params);
+}
+
+Return<void> WifiStaIface::stopBackgroundScan(
+    uint32_t cmd_id, stopBackgroundScan_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::stopBackgroundScanInternal,
+                         hidl_status_cb,
+                         cmd_id);
+}
+
+Return<void> WifiStaIface::enableLinkLayerStatsCollection(
+    bool debug, enableLinkLayerStatsCollection_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::enableLinkLayerStatsCollectionInternal,
+                         hidl_status_cb,
+                         debug);
+}
+
+Return<void> WifiStaIface::disableLinkLayerStatsCollection(
+    disableLinkLayerStatsCollection_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::disableLinkLayerStatsCollectionInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getLinkLayerStats(
+    getLinkLayerStats_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::getLinkLayerStatsInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::startDebugPacketFateMonitoring(
+    startDebugPacketFateMonitoring_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::startDebugPacketFateMonitoringInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::stopDebugPacketFateMonitoring(
+    stopDebugPacketFateMonitoring_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::stopDebugPacketFateMonitoringInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getDebugTxPacketFates(
+    getDebugTxPacketFates_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::getDebugTxPacketFatesInternal,
+                         hidl_status_cb);
+}
+
+Return<void> WifiStaIface::getDebugRxPacketFates(
+    getDebugRxPacketFates_cb hidl_status_cb) {
+  return validateAndCall(this,
+                         WifiStatusCode::ERROR_WIFI_IFACE_INVALID,
+                         &WifiStaIface::getDebugRxPacketFatesInternal,
+                         hidl_status_cb);
+}
+
 std::pair<WifiStatus, std::string> WifiStaIface::getNameInternal() {
   return {createWifiStatus(WifiStatusCode::SUCCESS), ifname_};
 }
@@ -62,6 +197,93 @@
   return {createWifiStatus(WifiStatusCode::SUCCESS), IfaceType::STA};
 }
 
+WifiStatus WifiStaIface::registerEventCallbackInternal(
+    const sp<IWifiStaIfaceEventCallback>& callback) {
+  // TODO(b/31632518): remove the callback when the client is destroyed
+  event_callbacks_.emplace_back(callback);
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, uint32_t> WifiStaIface::getCapabilitiesInternal() {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), 0};
+}
+
+std::pair<WifiStatus, StaApfPacketFilterCapabilities>
+WifiStaIface::getApfPacketFilterCapabilitiesInternal() {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+}
+
+WifiStatus WifiStaIface::installApfPacketFilterInternal(
+    uint32_t /* cmd_id */, const std::vector<uint8_t>& /* program */) {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, StaBackgroundScanCapabilities>
+WifiStaIface::getBackgroundScanCapabilitiesInternal() {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+}
+
+std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
+WifiStaIface::getValidFrequenciesForBackgroundScanInternal(
+    StaBackgroundScanBand /* band */) {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+}
+
+WifiStatus WifiStaIface::startBackgroundScanInternal(
+    uint32_t /* cmd_id */, const StaBackgroundScanParameters& /* params */) {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiStaIface::stopBackgroundScanInternal(uint32_t /* cmd_id */) {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiStaIface::enableLinkLayerStatsCollectionInternal(
+    bool /* debug */) {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiStaIface::disableLinkLayerStatsCollectionInternal() {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, StaLinkLayerStats>
+WifiStaIface::getLinkLayerStatsInternal() {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+}
+
+WifiStatus WifiStaIface::startDebugPacketFateMonitoringInternal() {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+WifiStatus WifiStaIface::stopDebugPacketFateMonitoringInternal() {
+  // TODO implement
+  return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
+std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
+WifiStaIface::getDebugTxPacketFatesInternal() {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+}
+
+std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
+WifiStaIface::getDebugRxPacketFatesInternal() {
+  // TODO implement
+  return {createWifiStatus(WifiStatusCode::SUCCESS), {}};
+}
+
 }  // namespace implementation
 }  // namespace V1_0
 }  // namespace wifi
diff --git a/wifi/1.0/default/wifi_sta_iface.h b/wifi/1.0/default/wifi_sta_iface.h
index 6303305..a13feeb 100644
--- a/wifi/1.0/default/wifi_sta_iface.h
+++ b/wifi/1.0/default/wifi_sta_iface.h
@@ -19,6 +19,7 @@
 
 #include <android-base/macros.h>
 #include <android/hardware/wifi/1.0/IWifiStaIface.h>
+#include <android/hardware/wifi/1.0/IWifiStaIfaceEventCallback.h>
 
 #include "wifi_legacy_hal.h"
 
@@ -42,14 +43,72 @@
   // 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> getBackgroundScanCapabilities(
+      getBackgroundScanCapabilities_cb hidl_status_cb) override;
+  Return<void> getValidFrequenciesForBackgroundScan(
+      StaBackgroundScanBand band,
+      getValidFrequenciesForBackgroundScan_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> startDebugPacketFateMonitoring(
+      startDebugPacketFateMonitoring_cb hidl_status_cb) override;
+  Return<void> stopDebugPacketFateMonitoring(
+      stopDebugPacketFateMonitoring_cb hidl_status_cb) override;
+  Return<void> getDebugTxPacketFates(
+      getDebugTxPacketFates_cb hidl_status_cb) override;
+  Return<void> getDebugRxPacketFates(
+      getDebugRxPacketFates_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, StaBackgroundScanCapabilities>
+  getBackgroundScanCapabilitiesInternal();
+  std::pair<WifiStatus, std::vector<WifiChannelInMhz>>
+  getValidFrequenciesForBackgroundScanInternal(StaBackgroundScanBand 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, StaLinkLayerStats> getLinkLayerStatsInternal();
+  WifiStatus startDebugPacketFateMonitoringInternal();
+  WifiStatus stopDebugPacketFateMonitoringInternal();
+  std::pair<WifiStatus, std::vector<WifiDebugTxPacketFateReport>>
+  getDebugTxPacketFatesInternal();
+  std::pair<WifiStatus, std::vector<WifiDebugRxPacketFateReport>>
+  getDebugRxPacketFatesInternal();
 
   std::string ifname_;
   std::weak_ptr<WifiLegacyHal> legacy_hal_;
+  std::vector<sp<IWifiStaIfaceEventCallback>> event_callbacks_;
   bool is_valid_;
 
   DISALLOW_COPY_AND_ASSIGN(WifiStaIface);