diff --git a/bluetooth/1.1/vts/OWNERS b/bluetooth/1.1/vts/OWNERS
new file mode 100644
index 0000000..ff6fd93
--- /dev/null
+++ b/bluetooth/1.1/vts/OWNERS
@@ -0,0 +1,6 @@
+zachoverflow@google.com
+siyuanh@google.com
+mylesgw@google.com
+jpawlowski@google.com
+hsz@google.com
+
diff --git a/bluetooth/1.1/vts/functional/Android.bp b/bluetooth/1.1/vts/functional/Android.bp
new file mode 100644
index 0000000..8d6d749
--- /dev/null
+++ b/bluetooth/1.1/vts/functional/Android.bp
@@ -0,0 +1,27 @@
+//
+// Copyright (C) 2019 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.
+//
+
+cc_test {
+    name: "VtsHalBluetoothV1_1TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalBluetoothV1_1TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.bluetooth@1.1",
+        "android.hardware.bluetooth@1.0",
+        "libbluetooth-types",
+    ],
+    test_suites: ["general-tests", "vts-core"],
+}
diff --git a/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.cpp b/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.cpp
new file mode 100644
index 0000000..659b2c8
--- /dev/null
+++ b/bluetooth/1.1/vts/functional/VtsHalBluetoothV1_1TargetTest.cpp
@@ -0,0 +1,760 @@
+/*
+ * Copyright (C) 2019 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 "bluetooth_hidl_hal_test"
+#include <android-base/logging.h>
+
+#include <android/hardware/bluetooth/1.0/types.h>
+#include <android/hardware/bluetooth/1.1/IBluetoothHci.h>
+#include <android/hardware/bluetooth/1.1/IBluetoothHciCallbacks.h>
+#include <hardware/bluetooth.h>
+#include <utils/Log.h>
+
+#include <VtsHalHidlTargetCallbackBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
+
+#include <chrono>
+#include <queue>
+#include <thread>
+
+using ::android::sp;
+using ::android::hardware::hidl_death_recipient;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::bluetooth::V1_0::Status;
+using ::android::hardware::bluetooth::V1_1::IBluetoothHci;
+using ::android::hardware::bluetooth::V1_1::IBluetoothHciCallbacks;
+
+#define HCI_MINIMUM_HCI_VERSION 5  // Bluetooth Core Specification 3.0 + HS
+#define HCI_MINIMUM_LMP_VERSION 5  // Bluetooth Core Specification 3.0 + HS
+#define NUM_HCI_COMMANDS_BANDWIDTH 1000
+#define NUM_SCO_PACKETS_BANDWIDTH 1000
+#define NUM_ACL_PACKETS_BANDWIDTH 1000
+#define WAIT_FOR_INIT_TIMEOUT std::chrono::milliseconds(2000)
+#define WAIT_FOR_HCI_EVENT_TIMEOUT std::chrono::milliseconds(2000)
+#define WAIT_FOR_SCO_DATA_TIMEOUT std::chrono::milliseconds(1000)
+#define WAIT_FOR_ACL_DATA_TIMEOUT std::chrono::milliseconds(1000)
+#define INTERFACE_CLOSE_DELAY_MS std::chrono::milliseconds(200)
+
+#define COMMAND_HCI_SHOULD_BE_UNKNOWN \
+  { 0xff, 0x3B, 0x08, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }
+#define COMMAND_HCI_READ_LOCAL_VERSION_INFORMATION \
+  { 0x01, 0x10, 0x00 }
+#define COMMAND_HCI_READ_BUFFER_SIZE \
+  { 0x05, 0x10, 0x00 }
+#define COMMAND_HCI_WRITE_LOOPBACK_MODE_LOCAL \
+  { 0x02, 0x18, 0x01, 0x01 }
+#define COMMAND_HCI_RESET \
+  { 0x03, 0x0c, 0x00 }
+#define COMMAND_HCI_WRITE_LOCAL_NAME \
+  { 0x13, 0x0c, 0xf8 }
+#define HCI_STATUS_SUCCESS 0x00
+#define HCI_STATUS_UNKNOWN_HCI_COMMAND 0x01
+
+#define EVENT_CONNECTION_COMPLETE 0x03
+#define EVENT_COMMAND_COMPLETE 0x0e
+#define EVENT_COMMAND_STATUS 0x0f
+#define EVENT_NUMBER_OF_COMPLETED_PACKETS 0x13
+#define EVENT_LOOPBACK_COMMAND 0x19
+
+#define EVENT_CODE_BYTE 0
+#define EVENT_LENGTH_BYTE 1
+#define EVENT_FIRST_PAYLOAD_BYTE 2
+#define EVENT_COMMAND_STATUS_STATUS_BYTE 2
+#define EVENT_COMMAND_STATUS_ALLOWED_PACKETS_BYTE 3
+#define EVENT_COMMAND_STATUS_OPCODE_LSBYTE 4  // Bytes 4 and 5
+#define EVENT_COMMAND_COMPLETE_ALLOWED_PACKETS_BYTE 2
+#define EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE 3  // Bytes 3 and 4
+#define EVENT_COMMAND_COMPLETE_STATUS_BYTE 5
+#define EVENT_COMMAND_COMPLETE_FIRST_PARAM_BYTE 6
+#define EVENT_LOCAL_HCI_VERSION_BYTE EVENT_COMMAND_COMPLETE_FIRST_PARAM_BYTE
+#define EVENT_LOCAL_LMP_VERSION_BYTE EVENT_LOCAL_HCI_VERSION_BYTE + 3
+
+#define EVENT_CONNECTION_COMPLETE_PARAM_LENGTH 11
+#define EVENT_CONNECTION_COMPLETE_TYPE 11
+#define EVENT_CONNECTION_COMPLETE_TYPE_SCO 0
+#define EVENT_CONNECTION_COMPLETE_TYPE_ACL 1
+#define EVENT_CONNECTION_COMPLETE_HANDLE_LSBYTE 3
+#define EVENT_COMMAND_STATUS_LENGTH 4
+
+#define EVENT_NUMBER_OF_COMPLETED_PACKETS_NUM_HANDLES 2
+
+#define ACL_BROADCAST_FLAG_OFFSET 6
+#define ACL_BROADCAST_FLAG_POINT_TO_POINT 0x0
+#define ACL_BROADCAST_POINT_TO_POINT \
+  (ACL_BROADCAST_FLAG_POINT_TO_POINT << ACL_BROADCAST_FLAG_OFFSET)
+
+#define ACL_PACKET_BOUNDARY_FLAG_OFFSET 4
+#define ACL_PACKET_BOUNDARY_FLAG_FIRST_AUTO_FLUSHABLE 0x2
+#define ACL_PACKET_BOUNDARY_FIRST_AUTO_FLUSHABLE \
+  (ACL_PACKET_BOUNDARY_FLAG_FIRST_AUTO_FLUSHABLE \
+   << ACL_PACKET_BOUNDARY_FLAG_OFFSET)
+
+// To be removed in VTS release builds
+#define ACL_HANDLE_QCA_DEBUG_MESSAGE 0xedc
+
+constexpr char kCallbackNameAclEventReceived[] = "aclDataReceived";
+constexpr char kCallbackNameHciEventReceived[] = "hciEventReceived";
+constexpr char kCallbackNameInitializationComplete[] = "initializationComplete";
+constexpr char kCallbackNameScoEventReceived[] = "scoDataReceived";
+constexpr char kCallbackNameIsoEventReceived[] = "isoDataReceived";
+
+class ThroughputLogger {
+ public:
+  ThroughputLogger(std::string task)
+      : task_(task), start_time_(std::chrono::steady_clock::now()) {}
+
+  ~ThroughputLogger() {
+    if (total_bytes_ == 0) return;
+    std::chrono::duration<double> duration =
+        std::chrono::steady_clock::now() - start_time_;
+    double s = duration.count();
+    if (s == 0) return;
+    double rate_kb = (static_cast<double>(total_bytes_) / s) / 1024;
+    ALOGD("%s %.1f KB/s (%zu bytes in %.3fs)", task_.c_str(), rate_kb,
+          total_bytes_, s);
+  }
+
+  void setTotalBytes(size_t total_bytes) { total_bytes_ = total_bytes; }
+
+ private:
+  size_t total_bytes_;
+  std::string task_;
+  std::chrono::steady_clock::time_point start_time_;
+};
+
+// The main test class for Bluetooth HIDL HAL.
+class BluetoothHidlTest : public ::testing::TestWithParam<std::string> {
+ public:
+  virtual void SetUp() override {
+    // currently test passthrough mode only
+    bluetooth = IBluetoothHci::getService(GetParam());
+    ASSERT_NE(bluetooth, nullptr);
+    ALOGI("%s: getService() for bluetooth is %s", __func__,
+          bluetooth->isRemote() ? "remote" : "local");
+
+    bluetooth_hci_death_recipient = new BluetoothHciDeathRecipient();
+    ASSERT_NE(bluetooth_hci_death_recipient, nullptr);
+    ASSERT_TRUE(
+        bluetooth->linkToDeath(bluetooth_hci_death_recipient, 0).isOk());
+
+    bluetooth_cb = new BluetoothHciCallbacks(*this);
+    ASSERT_NE(bluetooth_cb, nullptr);
+
+    max_acl_data_packet_length = 0;
+    max_sco_data_packet_length = 0;
+    max_acl_data_packets = 0;
+    max_sco_data_packets = 0;
+
+    initialized = false;
+    event_cb_count = 0;
+    acl_cb_count = 0;
+    sco_cb_count = 0;
+
+    ASSERT_FALSE(initialized);
+    // Should not be checked in production code
+    ASSERT_TRUE(bluetooth->initialize(bluetooth_cb).isOk());
+
+    bluetooth_cb->SetWaitTimeout(kCallbackNameInitializationComplete,
+                                 WAIT_FOR_INIT_TIMEOUT);
+    bluetooth_cb->SetWaitTimeout(kCallbackNameHciEventReceived,
+                                 WAIT_FOR_HCI_EVENT_TIMEOUT);
+    bluetooth_cb->SetWaitTimeout(kCallbackNameAclEventReceived,
+                                 WAIT_FOR_ACL_DATA_TIMEOUT);
+    bluetooth_cb->SetWaitTimeout(kCallbackNameScoEventReceived,
+                                 WAIT_FOR_SCO_DATA_TIMEOUT);
+
+    EXPECT_TRUE(
+        bluetooth_cb->WaitForCallback(kCallbackNameInitializationComplete)
+            .no_timeout);
+
+    ASSERT_TRUE(initialized);
+  }
+
+  virtual void TearDown() override {
+    ALOGI("TearDown");
+    // Should not be checked in production code
+    ASSERT_TRUE(bluetooth->close().isOk());
+    std::this_thread::sleep_for(INTERFACE_CLOSE_DELAY_MS);
+    handle_no_ops();
+    EXPECT_EQ(static_cast<size_t>(0), event_queue.size());
+    EXPECT_EQ(static_cast<size_t>(0), sco_queue.size());
+    EXPECT_EQ(static_cast<size_t>(0), acl_queue.size());
+    EXPECT_EQ(static_cast<size_t>(0), iso_queue.size());
+  }
+
+  void setBufferSizes();
+
+  // Functions called from within tests in loopback mode
+  void sendAndCheckHCI(int num_packets);
+  void sendAndCheckSCO(int num_packets, size_t size, uint16_t handle);
+  void sendAndCheckACL(int num_packets, size_t size, uint16_t handle);
+
+  // Helper functions to try to get a handle on verbosity
+  void enterLoopbackMode(std::vector<uint16_t>* sco_handles,
+                         std::vector<uint16_t>* acl_handles);
+  void handle_no_ops();
+  void wait_for_event(bool timeout_is_error);
+  void wait_for_command_complete_event(hidl_vec<uint8_t> cmd);
+  int wait_for_completed_packets_event(uint16_t handle);
+
+  class BluetoothHciDeathRecipient : public hidl_death_recipient {
+   public:
+    void serviceDied(
+        uint64_t /*cookie*/,
+        const android::wp<::android::hidl::base::V1_0::IBase>& /*who*/)
+        override {
+      FAIL();
+    }
+  };
+
+  // A simple test implementation of BluetoothHciCallbacks.
+  class BluetoothHciCallbacks
+      : public ::testing::VtsHalHidlTargetCallbackBase<BluetoothHidlTest>,
+        public IBluetoothHciCallbacks {
+    BluetoothHidlTest& parent_;
+
+   public:
+    BluetoothHciCallbacks(BluetoothHidlTest& parent) : parent_(parent){};
+
+    virtual ~BluetoothHciCallbacks() = default;
+
+    Return<void> initializationComplete(Status status) override {
+      parent_.initialized = (status == Status::SUCCESS);
+      NotifyFromCallback(kCallbackNameInitializationComplete);
+      ALOGV("%s (status = %d)", __func__, static_cast<int>(status));
+      return Void();
+    };
+
+    Return<void> hciEventReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& event) override {
+      parent_.event_cb_count++;
+      parent_.event_queue.push(event);
+      NotifyFromCallback(kCallbackNameHciEventReceived);
+      ALOGV("Event received (length = %d)", static_cast<int>(event.size()));
+      return Void();
+    };
+
+    Return<void> aclDataReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& data) override {
+      parent_.acl_cb_count++;
+      parent_.acl_queue.push(data);
+      NotifyFromCallback(kCallbackNameAclEventReceived);
+      return Void();
+    };
+
+    Return<void> scoDataReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& data) override {
+      parent_.sco_cb_count++;
+      parent_.sco_queue.push(data);
+      NotifyFromCallback(kCallbackNameScoEventReceived);
+      return Void();
+    };
+
+    Return<void> isoDataReceived(
+        const ::android::hardware::hidl_vec<uint8_t>& data) override {
+      parent_.iso_cb_count++;
+      parent_.iso_queue.push(data);
+      NotifyFromCallback(kCallbackNameIsoEventReceived);
+      return Void();
+    };
+  };
+
+  sp<IBluetoothHci> bluetooth;
+  sp<BluetoothHciCallbacks> bluetooth_cb;
+  sp<BluetoothHciDeathRecipient> bluetooth_hci_death_recipient;
+  std::queue<hidl_vec<uint8_t>> event_queue;
+  std::queue<hidl_vec<uint8_t>> acl_queue;
+  std::queue<hidl_vec<uint8_t>> sco_queue;
+  std::queue<hidl_vec<uint8_t>> iso_queue;
+
+  bool initialized;
+
+  int event_cb_count;
+  int sco_cb_count;
+  int acl_cb_count;
+  int iso_cb_count;
+
+  int max_acl_data_packet_length;
+  int max_sco_data_packet_length;
+  int max_acl_data_packets;
+  int max_sco_data_packets;
+};
+
+// Discard NO-OPs from the event queue.
+void BluetoothHidlTest::handle_no_ops() {
+  while (event_queue.size() > 0) {
+    hidl_vec<uint8_t> event = event_queue.front();
+    EXPECT_GE(event.size(),
+              static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+    bool event_is_no_op =
+        (event[EVENT_CODE_BYTE] == EVENT_COMMAND_COMPLETE) &&
+        (event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE] == 0x00) &&
+        (event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1] == 0x00);
+    event_is_no_op |= (event[EVENT_CODE_BYTE] == EVENT_COMMAND_STATUS) &&
+                      (event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE] == 0x00) &&
+                      (event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE + 1] == 0x00);
+    if (event_is_no_op) {
+      event_queue.pop();
+    } else {
+      break;
+    }
+  }
+  // To be removed in VTS release builds
+  while (acl_queue.size() > 0) {
+    hidl_vec<uint8_t> acl_packet = acl_queue.front();
+    uint16_t connection_handle = acl_packet[1] & 0xF;
+    connection_handle <<= 8;
+    connection_handle |= acl_packet[0];
+    bool packet_is_no_op = connection_handle == ACL_HANDLE_QCA_DEBUG_MESSAGE;
+    if (packet_is_no_op) {
+      acl_queue.pop();
+    } else {
+      break;
+    }
+  }
+}
+
+// Receive an event, discarding NO-OPs.
+void BluetoothHidlTest::wait_for_event(bool timeout_is_error = true) {
+  hidl_vec<uint8_t> event;
+  do {
+    bool no_timeout =
+        bluetooth_cb->WaitForCallback(kCallbackNameHciEventReceived).no_timeout;
+    EXPECT_TRUE(no_timeout || !timeout_is_error);
+    if (no_timeout && timeout_is_error) {
+      EXPECT_LT(static_cast<size_t>(0), event_queue.size());
+    }
+    if (event_queue.size() == 0) {
+      // WaitForCallback timed out.
+      return;
+    }
+    handle_no_ops();
+  } while (event_queue.size() == 0);
+}
+
+// Wait until a COMMAND_COMPLETE is received.
+void BluetoothHidlTest::wait_for_command_complete_event(hidl_vec<uint8_t> cmd) {
+  wait_for_event();
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+
+  EXPECT_GT(event.size(),
+            static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+  EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+  EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+  EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+  EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+}
+
+// Send the command to read the controller's buffer sizes.
+void BluetoothHidlTest::setBufferSizes() {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_READ_BUFFER_SIZE;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_event();
+  if (event_queue.size() == 0) return;
+
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+
+  EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+  EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+  EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+  EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+
+  max_acl_data_packet_length =
+      event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 1] +
+      (event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 2] << 8);
+  max_sco_data_packet_length = event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 3];
+  max_acl_data_packets = event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 4] +
+                         (event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 5] << 8);
+  max_sco_data_packets = event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 6] +
+                         (event[EVENT_COMMAND_COMPLETE_STATUS_BYTE + 7] << 8);
+
+  ALOGD("%s: ACL max %d num %d SCO max %d num %d", __func__,
+        static_cast<int>(max_acl_data_packet_length),
+        static_cast<int>(max_acl_data_packets),
+        static_cast<int>(max_sco_data_packet_length),
+        static_cast<int>(max_sco_data_packets));
+}
+
+// Send an HCI command (in Loopback mode) and check the response.
+void BluetoothHidlTest::sendAndCheckHCI(int num_packets) {
+  ThroughputLogger logger = {__func__};
+  int command_size = 0;
+  for (int n = 0; n < num_packets; n++) {
+    // Send an HCI packet
+    std::vector<uint8_t> write_name = COMMAND_HCI_WRITE_LOCAL_NAME;
+    // With a name
+    char new_name[] = "John Jacob Jingleheimer Schmidt ___________________0";
+    size_t new_name_length = strlen(new_name);
+    for (size_t i = 0; i < new_name_length; i++)
+      write_name.push_back(static_cast<uint8_t>(new_name[i]));
+    // And the packet number
+    size_t i = new_name_length - 1;
+    for (int digits = n; digits > 0; digits = digits / 10, i--)
+      write_name[i] = static_cast<uint8_t>('0' + digits % 10);
+    // And padding
+    for (size_t i = 0; i < 248 - new_name_length; i++)
+      write_name.push_back(static_cast<uint8_t>(0));
+
+    hidl_vec<uint8_t> cmd = write_name;
+    bluetooth->sendHciCommand(cmd);
+
+    // Check the loopback of the HCI packet
+    wait_for_event();
+    if (event_queue.size() == 0) return;
+
+    hidl_vec<uint8_t> event = event_queue.front();
+    event_queue.pop();
+    size_t compare_length =
+        (cmd.size() > static_cast<size_t>(0xff) ? static_cast<size_t>(0xff)
+                                                : cmd.size());
+    EXPECT_GT(event.size(), compare_length + EVENT_FIRST_PAYLOAD_BYTE - 1);
+
+    EXPECT_EQ(EVENT_LOOPBACK_COMMAND, event[EVENT_CODE_BYTE]);
+    EXPECT_EQ(compare_length, event[EVENT_LENGTH_BYTE]);
+
+    // Don't compare past the end of the event.
+    if (compare_length + EVENT_FIRST_PAYLOAD_BYTE > event.size()) {
+      compare_length = event.size() - EVENT_FIRST_PAYLOAD_BYTE;
+      ALOGE("Only comparing %d bytes", static_cast<int>(compare_length));
+    }
+
+    if (n == num_packets - 1) {
+      command_size = cmd.size();
+    }
+
+    for (size_t i = 0; i < compare_length; i++)
+      EXPECT_EQ(cmd[i], event[EVENT_FIRST_PAYLOAD_BYTE + i]);
+  }
+  logger.setTotalBytes(command_size * num_packets * 2);
+}
+
+// Send a SCO data packet (in Loopback mode) and check the response.
+void BluetoothHidlTest::sendAndCheckSCO(int num_packets, size_t size,
+                                        uint16_t handle) {
+  ThroughputLogger logger = {__func__};
+  for (int n = 0; n < num_packets; n++) {
+    // Send a SCO packet
+    hidl_vec<uint8_t> sco_packet;
+    std::vector<uint8_t> sco_vector;
+    sco_vector.push_back(static_cast<uint8_t>(handle & 0xff));
+    sco_vector.push_back(static_cast<uint8_t>((handle & 0x0f00) >> 8));
+    sco_vector.push_back(static_cast<uint8_t>(size & 0xff));
+    sco_vector.push_back(static_cast<uint8_t>((size & 0xff00) >> 8));
+    for (size_t i = 0; i < size; i++) {
+      sco_vector.push_back(static_cast<uint8_t>(i + n));
+    }
+    sco_packet = sco_vector;
+    bluetooth->sendScoData(sco_vector);
+
+    // Check the loopback of the SCO packet
+    EXPECT_TRUE(bluetooth_cb->WaitForCallback(kCallbackNameScoEventReceived)
+                    .no_timeout);
+    hidl_vec<uint8_t> sco_loopback = sco_queue.front();
+    sco_queue.pop();
+
+    EXPECT_EQ(sco_packet.size(), sco_loopback.size());
+    size_t successful_bytes = 0;
+
+    for (size_t i = 0; i < sco_packet.size(); i++) {
+      if (sco_packet[i] == sco_loopback[i]) {
+        successful_bytes = i;
+      } else {
+        ALOGE("Miscompare at %d (expected %x, got %x)", static_cast<int>(i),
+              sco_packet[i], sco_loopback[i]);
+        ALOGE("At %d (expected %x, got %x)", static_cast<int>(i + 1),
+              sco_packet[i + 1], sco_loopback[i + 1]);
+        break;
+      }
+    }
+    EXPECT_EQ(sco_packet.size(), successful_bytes + 1);
+  }
+  logger.setTotalBytes(num_packets * size * 2);
+}
+
+// Send an ACL data packet (in Loopback mode) and check the response.
+void BluetoothHidlTest::sendAndCheckACL(int num_packets, size_t size,
+                                        uint16_t handle) {
+  ThroughputLogger logger = {__func__};
+  for (int n = 0; n < num_packets; n++) {
+    // Send an ACL packet
+    hidl_vec<uint8_t> acl_packet;
+    std::vector<uint8_t> acl_vector;
+    acl_vector.push_back(static_cast<uint8_t>(handle & 0xff));
+    acl_vector.push_back(static_cast<uint8_t>((handle & 0x0f00) >> 8) |
+                         ACL_BROADCAST_POINT_TO_POINT |
+                         ACL_PACKET_BOUNDARY_FIRST_AUTO_FLUSHABLE);
+    acl_vector.push_back(static_cast<uint8_t>(size & 0xff));
+    acl_vector.push_back(static_cast<uint8_t>((size & 0xff00) >> 8));
+    for (size_t i = 0; i < size; i++) {
+      acl_vector.push_back(static_cast<uint8_t>(i + n));
+    }
+    acl_packet = acl_vector;
+    bluetooth->sendAclData(acl_vector);
+
+    // Check the loopback of the ACL packet
+    EXPECT_TRUE(bluetooth_cb->WaitForCallback(kCallbackNameAclEventReceived)
+                    .no_timeout);
+    hidl_vec<uint8_t> acl_loopback = acl_queue.front();
+    acl_queue.pop();
+
+    EXPECT_EQ(acl_packet.size(), acl_loopback.size());
+    size_t successful_bytes = 0;
+
+    for (size_t i = 0; i < acl_packet.size(); i++) {
+      if (acl_packet[i] == acl_loopback[i]) {
+        successful_bytes = i;
+      } else {
+        ALOGE("Miscompare at %d (expected %x, got %x)", static_cast<int>(i),
+              acl_packet[i], acl_loopback[i]);
+        ALOGE("At %d (expected %x, got %x)", static_cast<int>(i + 1),
+              acl_packet[i + 1], acl_loopback[i + 1]);
+        break;
+      }
+    }
+    EXPECT_EQ(acl_packet.size(), successful_bytes + 1);
+  }
+  logger.setTotalBytes(num_packets * size * 2);
+}
+
+// Return the number of completed packets reported by the controller.
+int BluetoothHidlTest::wait_for_completed_packets_event(uint16_t handle) {
+  int packets_processed = 0;
+  wait_for_event(false);
+  if (event_queue.size() == 0) {
+    ALOGW("%s: WaitForCallback timed out.", __func__);
+    return packets_processed;
+  }
+  while (event_queue.size() > 0) {
+    hidl_vec<uint8_t> event = event_queue.front();
+    event_queue.pop();
+
+    EXPECT_EQ(EVENT_NUMBER_OF_COMPLETED_PACKETS, event[EVENT_CODE_BYTE]);
+    EXPECT_EQ(1, event[EVENT_NUMBER_OF_COMPLETED_PACKETS_NUM_HANDLES]);
+
+    uint16_t event_handle = event[3] + (event[4] << 8);
+    EXPECT_EQ(handle, event_handle);
+
+    packets_processed += event[5] + (event[6] << 8);
+  }
+  return packets_processed;
+}
+
+// Send local loopback command and initialize SCO and ACL handles.
+void BluetoothHidlTest::enterLoopbackMode(std::vector<uint16_t>* sco_handles,
+                                          std::vector<uint16_t>* acl_handles) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_WRITE_LOOPBACK_MODE_LOCAL;
+  bluetooth->sendHciCommand(cmd);
+
+  // Receive connection complete events with data channels
+  int connection_event_count = 0;
+  bool command_complete_received = false;
+  while (true) {
+    wait_for_event(false);
+    if (event_queue.size() == 0) {
+      // Fail if there was no event received or no connections completed.
+      EXPECT_TRUE(command_complete_received);
+      EXPECT_LT(0, connection_event_count);
+      return;
+    }
+    hidl_vec<uint8_t> event = event_queue.front();
+    event_queue.pop();
+    EXPECT_GT(event.size(),
+              static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+    if (event[EVENT_CODE_BYTE] == EVENT_CONNECTION_COMPLETE) {
+      EXPECT_GT(event.size(),
+                static_cast<size_t>(EVENT_CONNECTION_COMPLETE_TYPE));
+      EXPECT_EQ(event[EVENT_LENGTH_BYTE],
+                EVENT_CONNECTION_COMPLETE_PARAM_LENGTH);
+      uint8_t connection_type = event[EVENT_CONNECTION_COMPLETE_TYPE];
+
+      EXPECT_TRUE(connection_type == EVENT_CONNECTION_COMPLETE_TYPE_SCO ||
+                  connection_type == EVENT_CONNECTION_COMPLETE_TYPE_ACL);
+
+      // Save handles
+      uint16_t handle = event[EVENT_CONNECTION_COMPLETE_HANDLE_LSBYTE] |
+                        event[EVENT_CONNECTION_COMPLETE_HANDLE_LSBYTE + 1] << 8;
+      if (connection_type == EVENT_CONNECTION_COMPLETE_TYPE_SCO)
+        sco_handles->push_back(handle);
+      else
+        acl_handles->push_back(handle);
+
+      ALOGD("Connect complete type = %d handle = %d",
+            event[EVENT_CONNECTION_COMPLETE_TYPE], handle);
+      connection_event_count++;
+    } else {
+      EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+      EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+      EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+      EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+      command_complete_received = true;
+    }
+  }
+}
+
+// Empty test: Initialize()/Close() are called in SetUp()/TearDown().
+TEST_P(BluetoothHidlTest, InitializeAndClose) {}
+
+// Send an HCI Reset with sendHciCommand and wait for a command complete event.
+TEST_P(BluetoothHidlTest, HciReset) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_RESET;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_command_complete_event(cmd);
+}
+
+// Read and check the HCI version of the controller.
+TEST_P(BluetoothHidlTest, HciVersionTest) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_READ_LOCAL_VERSION_INFORMATION;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_event();
+  if (event_queue.size() == 0) return;
+
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+  EXPECT_GT(event.size(), static_cast<size_t>(EVENT_LOCAL_LMP_VERSION_BYTE));
+
+  EXPECT_EQ(EVENT_COMMAND_COMPLETE, event[EVENT_CODE_BYTE]);
+  EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+  EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+  EXPECT_EQ(HCI_STATUS_SUCCESS, event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+
+  EXPECT_LE(HCI_MINIMUM_HCI_VERSION, event[EVENT_LOCAL_HCI_VERSION_BYTE]);
+  EXPECT_LE(HCI_MINIMUM_LMP_VERSION, event[EVENT_LOCAL_LMP_VERSION_BYTE]);
+}
+
+// Send an unknown HCI command and wait for the error message.
+TEST_P(BluetoothHidlTest, HciUnknownCommand) {
+  hidl_vec<uint8_t> cmd = COMMAND_HCI_SHOULD_BE_UNKNOWN;
+  bluetooth->sendHciCommand(cmd);
+
+  wait_for_event();
+  if (event_queue.size() == 0) return;
+
+  hidl_vec<uint8_t> event = event_queue.front();
+  event_queue.pop();
+
+  EXPECT_GT(event.size(),
+            static_cast<size_t>(EVENT_COMMAND_COMPLETE_STATUS_BYTE));
+  if (event[EVENT_CODE_BYTE] == EVENT_COMMAND_COMPLETE) {
+    EXPECT_EQ(cmd[0], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE]);
+    EXPECT_EQ(cmd[1], event[EVENT_COMMAND_COMPLETE_OPCODE_LSBYTE + 1]);
+    EXPECT_EQ(HCI_STATUS_UNKNOWN_HCI_COMMAND,
+              event[EVENT_COMMAND_COMPLETE_STATUS_BYTE]);
+  } else {
+    EXPECT_EQ(EVENT_COMMAND_STATUS, event[EVENT_CODE_BYTE]);
+    EXPECT_EQ(cmd[0], event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE]);
+    EXPECT_EQ(cmd[1], event[EVENT_COMMAND_STATUS_OPCODE_LSBYTE + 1]);
+    EXPECT_EQ(HCI_STATUS_UNKNOWN_HCI_COMMAND,
+              event[EVENT_COMMAND_STATUS_STATUS_BYTE]);
+  }
+}
+
+// Enter loopback mode, but don't send any packets.
+TEST_P(BluetoothHidlTest, WriteLoopbackMode) {
+  std::vector<uint16_t> sco_connection_handles;
+  std::vector<uint16_t> acl_connection_handles;
+  enterLoopbackMode(&sco_connection_handles, &acl_connection_handles);
+}
+
+// Enter loopback mode and send single packets.
+TEST_P(BluetoothHidlTest, LoopbackModeSinglePackets) {
+  setBufferSizes();
+
+  std::vector<uint16_t> sco_connection_handles;
+  std::vector<uint16_t> acl_connection_handles;
+  enterLoopbackMode(&sco_connection_handles, &acl_connection_handles);
+
+  sendAndCheckHCI(1);
+
+  // This should work, but breaks on some current platforms.  Figure out how to
+  // grandfather older devices but test new ones.
+  if (0 && sco_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_sco_data_packet_length);
+    sendAndCheckSCO(1, max_sco_data_packet_length, sco_connection_handles[0]);
+    int sco_packets_sent = 1;
+    int completed_packets =
+        wait_for_completed_packets_event(sco_connection_handles[0]);
+    if (sco_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            sco_packets_sent, completed_packets);
+    }
+  }
+
+  if (acl_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_acl_data_packet_length);
+    sendAndCheckACL(1, max_acl_data_packet_length, acl_connection_handles[0]);
+    int acl_packets_sent = 1;
+    int completed_packets =
+        wait_for_completed_packets_event(acl_connection_handles[0]);
+    if (acl_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            acl_packets_sent, completed_packets);
+    }
+  }
+}
+
+// Enter loopback mode and send packets for bandwidth measurements.
+TEST_P(BluetoothHidlTest, LoopbackModeBandwidth) {
+  setBufferSizes();
+
+  std::vector<uint16_t> sco_connection_handles;
+  std::vector<uint16_t> acl_connection_handles;
+  enterLoopbackMode(&sco_connection_handles, &acl_connection_handles);
+
+  sendAndCheckHCI(NUM_HCI_COMMANDS_BANDWIDTH);
+
+  // This should work, but breaks on some current platforms.  Figure out how to
+  // grandfather older devices but test new ones.
+  if (0 && sco_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_sco_data_packet_length);
+    sendAndCheckSCO(NUM_SCO_PACKETS_BANDWIDTH, max_sco_data_packet_length,
+                    sco_connection_handles[0]);
+    int sco_packets_sent = NUM_SCO_PACKETS_BANDWIDTH;
+    int completed_packets =
+        wait_for_completed_packets_event(sco_connection_handles[0]);
+    if (sco_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            sco_packets_sent, completed_packets);
+    }
+  }
+
+  if (acl_connection_handles.size() > 0) {
+    EXPECT_LT(0, max_acl_data_packet_length);
+    sendAndCheckACL(NUM_ACL_PACKETS_BANDWIDTH, max_acl_data_packet_length,
+                    acl_connection_handles[0]);
+    int acl_packets_sent = NUM_ACL_PACKETS_BANDWIDTH;
+    int completed_packets =
+        wait_for_completed_packets_event(acl_connection_handles[0]);
+    if (acl_packets_sent != completed_packets) {
+      ALOGW("%s: packets_sent (%d) != completed_packets (%d)", __func__,
+            acl_packets_sent, completed_packets);
+    }
+  }
+}
+
+INSTANTIATE_TEST_SUITE_P(
+    PerInstance, BluetoothHidlTest,
+    testing::ValuesIn(
+        android::hardware::getAllHalInstanceNames(IBluetoothHci::descriptor)),
+    android::hardware::PrintInstanceNameToString);