diff --git a/bluetooth/aidl/vts/Android.bp b/bluetooth/aidl/vts/Android.bp
index 414f707..5fc0b2e 100644
--- a/bluetooth/aidl/vts/Android.bp
+++ b/bluetooth/aidl/vts/Android.bp
@@ -13,7 +13,17 @@
         "VtsHalTargetTestDefaults",
         "use_libaidlvintf_gtest_helper_static",
     ],
-    srcs: ["VtsHalBluetoothTargetTest.cpp"],
+    srcs: [
+        "VtsHalBluetoothTargetTest.cpp",
+        ":BluetoothPacketSources",
+        ":BluetoothHciPacketSources",
+    ],
+    generated_headers: [
+        "BluetoothGeneratedPackets_h",
+    ],
+    include_dirs: [
+        "packages/modules/Bluetooth/system/gd",
+    ],
     shared_libs: [
         "libbase",
         "libbinder_ndk",
@@ -45,4 +55,8 @@
     tidy_flags: [
         "--header-filter=^.*tools\\/rootcanal\\/(model|include|net|desktop)\\/(.(?!\\.pb\\.h))*$",
     ],
+    tidy_disabled_srcs: [
+        ":BluetoothPacketSources",
+        ":BluetoothHciPacketSources",
+    ],
 }
diff --git a/bluetooth/aidl/vts/VtsHalBluetoothTargetTest.cpp b/bluetooth/aidl/vts/VtsHalBluetoothTargetTest.cpp
index 3704c3d..43cb914 100644
--- a/bluetooth/aidl/vts/VtsHalBluetoothTargetTest.cpp
+++ b/bluetooth/aidl/vts/VtsHalBluetoothTargetTest.cpp
@@ -35,17 +35,20 @@
 #include <thread>
 #include <vector>
 
+// TODO: Remove custom logging defines from PDL packets.
+#undef LOG_INFO
+#undef LOG_DEBUG
+#undef LOG_TAG
+#define LOG_TAG "VtsHalBluetooth"
+#include "hci/hci_packets.h"
+#include "packet/raw_builder.h"
+
 using aidl::android::hardware::bluetooth::IBluetoothHci;
 using aidl::android::hardware::bluetooth::IBluetoothHciCallbacks;
 using aidl::android::hardware::bluetooth::Status;
 using ndk::ScopedAStatus;
 using ndk::SpAIBinder;
 
-// Bluetooth Core Specification 3.0 + HS
-static constexpr uint8_t kHciMinimumHciVersion = 5;
-// Bluetooth Core Specification 3.0 + HS
-static constexpr uint8_t kHciMinimumLmpVersion = 5;
-
 static constexpr size_t kNumHciCommandsBandwidth = 100;
 static constexpr size_t kNumScoPacketsBandwidth = 100;
 static constexpr size_t kNumAclPacketsBandwidth = 100;
@@ -55,57 +58,6 @@
 static constexpr std::chrono::milliseconds kWaitForAclDataTimeout(1000);
 static constexpr std::chrono::milliseconds kInterfaceCloseDelayMs(200);
 
-static constexpr uint8_t kCommandHciShouldBeUnknown[] = {
-    0xff, 0x3B, 0x08, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
-static constexpr uint8_t kCommandHciReadLocalVersionInformation[] = {0x01, 0x10,
-                                                                     0x00};
-static constexpr uint8_t kCommandHciReadBufferSize[] = {0x05, 0x10, 0x00};
-static constexpr uint8_t kCommandHciWriteLoopbackModeLocal[] = {0x02, 0x18,
-                                                                0x01, 0x01};
-static constexpr uint8_t kCommandHciReset[] = {0x03, 0x0c, 0x00};
-static constexpr uint8_t kCommandHciSynchronousFlowControlEnable[] = {
-    0x2f, 0x0c, 0x01, 0x01};
-static constexpr uint8_t kCommandHciWriteLocalName[] = {0x13, 0x0c, 0xf8};
-static constexpr uint8_t kHciStatusSuccess = 0x00;
-static constexpr uint8_t kHciStatusUnknownHciCommand = 0x01;
-
-static constexpr uint8_t kEventConnectionComplete = 0x03;
-static constexpr uint8_t kEventCommandComplete = 0x0e;
-static constexpr uint8_t kEventCommandStatus = 0x0f;
-static constexpr uint8_t kEventNumberOfCompletedPackets = 0x13;
-static constexpr uint8_t kEventLoopbackCommand = 0x19;
-
-static constexpr size_t kEventCodeByte = 0;
-static constexpr size_t kEventLengthByte = 1;
-static constexpr size_t kEventFirstPayloadByte = 2;
-static constexpr size_t kEventCommandStatusStatusByte = 2;
-static constexpr size_t kEventCommandStatusOpcodeLsByte = 4;    // Bytes 4 and 5
-static constexpr size_t kEventCommandCompleteOpcodeLsByte = 3;  // Bytes 3 and 4
-static constexpr size_t kEventCommandCompleteStatusByte = 5;
-static constexpr size_t kEventCommandCompleteFirstParamByte = 6;
-static constexpr size_t kEventLocalHciVersionByte =
-    kEventCommandCompleteFirstParamByte;
-static constexpr size_t kEventLocalLmpVersionByte =
-    kEventLocalHciVersionByte + 3;
-
-static constexpr size_t kEventConnectionCompleteParamLength = 11;
-static constexpr size_t kEventConnectionCompleteType = 11;
-static constexpr size_t kEventConnectionCompleteTypeSco = 0;
-static constexpr size_t kEventConnectionCompleteTypeAcl = 1;
-static constexpr size_t kEventConnectionCompleteHandleLsByte = 3;
-
-static constexpr size_t kEventNumberOfCompletedPacketsNumHandles = 2;
-
-static constexpr size_t kAclBroadcastFlagOffset = 6;
-static constexpr uint8_t kAclBroadcastFlagPointToPoint = 0x0;
-static constexpr uint8_t kAclBroadcastPointToPoint =
-    (kAclBroadcastFlagPointToPoint << kAclBroadcastFlagOffset);
-
-static constexpr uint8_t kAclPacketBoundaryFlagOffset = 4;
-static constexpr uint8_t kAclPacketBoundaryFlagFirstAutoFlushable = 0x2;
-static constexpr uint8_t kAclPacketBoundaryFirstAutoFlushable =
-    kAclPacketBoundaryFlagFirstAutoFlushable << kAclPacketBoundaryFlagOffset;
-
 // To discard Qualcomm ACL debugging
 static constexpr uint16_t kAclHandleQcaDebugMessage = 0xedc;
 
@@ -205,7 +157,7 @@
   void handle_no_ops();
   void discard_qca_debugging();
   void wait_for_event(bool timeout_is_error);
-  void wait_for_command_complete_event(std::vector<uint8_t> cmd);
+  void wait_for_command_complete_event(::bluetooth::hci::OpCode opCode);
   int wait_for_completed_packets_event(uint16_t handle);
 
   // A simple test implementation of BluetoothHciCallbacks.
@@ -283,6 +235,14 @@
       return true;
     };
 
+    void pop() {
+      std::lock_guard<std::mutex> lock(m_);
+      if (q_.empty()) {
+        return;
+      }
+      q_.pop();
+    };
+
     bool front(T& v) {
       std::lock_guard<std::mutex> lock(m_);
       if (q_.empty()) {
@@ -355,17 +315,20 @@
   while (!event_queue.empty()) {
     std::vector<uint8_t> event;
     event_queue.front(event);
-    ASSERT_GE(event.size(),
-              static_cast<size_t>(kEventCommandCompleteStatusByte));
-    bool event_is_no_op =
-        (event[kEventCodeByte] == kEventCommandComplete) &&
-        (event[kEventCommandCompleteOpcodeLsByte] == 0x00) &&
-        (event[kEventCommandCompleteOpcodeLsByte + 1] == 0x00);
-    event_is_no_op |= (event[kEventCodeByte] == kEventCommandStatus) &&
-                      (event[kEventCommandStatusOpcodeLsByte] == 0x00) &&
-                      (event[kEventCommandStatusOpcodeLsByte + 1] == 0x00);
-    if (event_is_no_op) {
-      event_queue.pop(event);
+    auto complete_view = ::bluetooth::hci::CommandCompleteView::Create(
+        ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+            std::make_shared<std::vector<uint8_t>>(event))));
+    auto status_view = ::bluetooth::hci::CommandCompleteView::Create(
+        ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+            std::make_shared<std::vector<uint8_t>>(event))));
+    bool is_complete_no_op =
+        complete_view.IsValid() &&
+        complete_view.GetCommandOpCode() == ::bluetooth::hci::OpCode::NONE;
+    bool is_status_no_op =
+        status_view.IsValid() &&
+        status_view.GetCommandOpCode() == ::bluetooth::hci::OpCode::NONE;
+    if (is_complete_no_op || is_status_no_op) {
+      event_queue.pop();
     } else {
       break;
     }
@@ -377,12 +340,12 @@
   while (!acl_queue.empty()) {
     std::vector<uint8_t> acl_packet;
     acl_queue.front(acl_packet);
-    uint16_t connection_handle = acl_packet[1] & 0xF;
-    connection_handle <<= 8;
-    connection_handle |= acl_packet[0];
-    bool packet_is_no_op = connection_handle == kAclHandleQcaDebugMessage;
-    if (packet_is_no_op) {
-      acl_queue.pop(acl_packet);
+    auto acl_view =
+        ::bluetooth::hci::AclView::Create(::bluetooth::hci::PacketView<true>(
+            std::make_shared<std::vector<uint8_t>>(acl_packet)));
+    EXPECT_TRUE(acl_view.IsValid());
+    if (acl_view.GetHandle() == kAclHandleQcaDebugMessage) {
+      acl_queue.pop();
     } else {
       break;
     }
@@ -409,46 +372,42 @@
 
 // Wait until a command complete is received.
 void BluetoothAidlTest::wait_for_command_complete_event(
-    std::vector<uint8_t> cmd) {
+    ::bluetooth::hci::OpCode opCode) {
   ASSERT_NO_FATAL_FAILURE(wait_for_event());
   std::vector<uint8_t> event;
   ASSERT_FALSE(event_queue.empty());
   ASSERT_TRUE(event_queue.pop(event));
-
-  ASSERT_GT(event.size(), static_cast<size_t>(kEventCommandCompleteStatusByte));
-  ASSERT_EQ(kEventCommandComplete, event[kEventCodeByte]);
-  ASSERT_EQ(cmd[0], event[kEventCommandCompleteOpcodeLsByte]);
-  ASSERT_EQ(cmd[1], event[kEventCommandCompleteOpcodeLsByte + 1]);
-  ASSERT_EQ(kHciStatusSuccess, event[kEventCommandCompleteStatusByte]);
+  auto complete_view = ::bluetooth::hci::CommandCompleteView::Create(
+      ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+          std::make_shared<std::vector<uint8_t>>(event))));
+  ASSERT_TRUE(complete_view.IsValid());
+  ASSERT_EQ(complete_view.GetCommandOpCode(), opCode);
+  ASSERT_EQ(complete_view.GetPayload()[0],
+            static_cast<uint8_t>(::bluetooth::hci::ErrorCode::SUCCESS));
 }
 
 // Send the command to read the controller's buffer sizes.
 void BluetoothAidlTest::setBufferSizes() {
-  std::vector<uint8_t> cmd{
-      kCommandHciReadBufferSize,
-      kCommandHciReadBufferSize + sizeof(kCommandHciReadBufferSize)};
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  ::bluetooth::hci::ReadBufferSizeBuilder::Create()->Serialize(bi);
   hci->sendHciCommand(cmd);
 
   ASSERT_NO_FATAL_FAILURE(wait_for_event());
-  if (event_queue.empty()) {
-    return;
-  }
   std::vector<uint8_t> event;
   ASSERT_TRUE(event_queue.pop(event));
+  auto complete_view = ::bluetooth::hci::ReadBufferSizeCompleteView::Create(
+      ::bluetooth::hci::CommandCompleteView::Create(
+          ::bluetooth::hci::EventView::Create(
+              ::bluetooth::hci::PacketView<true>(
+                  std::make_shared<std::vector<uint8_t>>(event)))));
 
-  ASSERT_EQ(kEventCommandComplete, event[kEventCodeByte]);
-  ASSERT_EQ(cmd[0], event[kEventCommandCompleteOpcodeLsByte]);
-  ASSERT_EQ(cmd[1], event[kEventCommandCompleteOpcodeLsByte + 1]);
-  ASSERT_EQ(kHciStatusSuccess, event[kEventCommandCompleteStatusByte]);
-
-  max_acl_data_packet_length =
-      event[kEventCommandCompleteStatusByte + 1] +
-      (event[kEventCommandCompleteStatusByte + 2] << 8);
-  max_sco_data_packet_length = event[kEventCommandCompleteStatusByte + 3];
-  max_acl_data_packets = event[kEventCommandCompleteStatusByte + 4] +
-                         (event[kEventCommandCompleteStatusByte + 5] << 8);
-  max_sco_data_packets = event[kEventCommandCompleteStatusByte + 6] +
-                         (event[kEventCommandCompleteStatusByte + 7] << 8);
+  ASSERT_TRUE(complete_view.IsValid());
+  ASSERT_EQ(complete_view.GetStatus(), ::bluetooth::hci::ErrorCode::SUCCESS);
+  max_acl_data_packet_length = complete_view.GetAclDataPacketLength();
+  max_sco_data_packet_length = complete_view.GetSynchronousDataPacketLength();
+  max_acl_data_packets = complete_view.GetTotalNumAclDataPackets();
+  max_sco_data_packets = complete_view.GetTotalNumSynchronousDataPackets();
 
   ALOGD("%s: ACL max %d num %d SCO max %d num %d", __func__,
         static_cast<int>(max_acl_data_packet_length),
@@ -459,39 +418,39 @@
 
 // Enable flow control packets for SCO
 void BluetoothAidlTest::setSynchronousFlowControlEnable() {
-  std::vector<uint8_t> cmd{kCommandHciSynchronousFlowControlEnable,
-                           kCommandHciSynchronousFlowControlEnable +
-                               sizeof(kCommandHciSynchronousFlowControlEnable)};
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  ::bluetooth::hci::WriteSynchronousFlowControlEnableBuilder::Create(
+      ::bluetooth::hci::Enable::ENABLED)
+      ->Serialize(bi);
   hci->sendHciCommand(cmd);
 
-  wait_for_command_complete_event(cmd);
+  wait_for_command_complete_event(
+      ::bluetooth::hci::OpCode::WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE);
 }
 
 // Send an HCI command (in Loopback mode) and check the response.
 void BluetoothAidlTest::sendAndCheckHci(int num_packets) {
   ThroughputLogger logger = {__func__};
   int command_size = 0;
+  char new_name[] = "John Jacob Jingleheimer Schmidt ___________________";
+  size_t new_name_length = strlen(new_name);
   for (int n = 0; n < num_packets; n++) {
-    // Send an HCI packet
-    std::vector<uint8_t> write_name{
-        kCommandHciWriteLocalName,
-        kCommandHciWriteLocalName + sizeof(kCommandHciWriteLocalName)};
-    // With a name
-    char new_name[] = "John Jacob Jingleheimer Schmidt ___________________0";
-    size_t new_name_length = strlen(new_name);
+    // The name to set is new_name
+    std::array<uint8_t, 248> name_array;
     for (size_t i = 0; i < new_name_length; i++) {
-      write_name.push_back(static_cast<uint8_t>(new_name[i]));
+      name_array[i] = 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);
+    char number[11] = "0000000000";
+    snprintf(number, sizeof(number), "%010d", static_cast<int>(n));
+    for (size_t i = new_name_length; i < new_name_length + sizeof(number) - 1;
+         i++) {
+      name_array[new_name_length + i] = number[i];
     }
-    // And padding
-    for (size_t i = 0; i < 248 - new_name_length; i++) {
-      write_name.push_back(static_cast<uint8_t>(0));
-    }
-
+    std::vector<uint8_t> write_name;
+    ::bluetooth::packet::BitInserter bi{write_name};
+    ::bluetooth::hci::WriteLocalNameBuilder::Create(name_array)->Serialize(bi);
     hci->sendHciCommand(write_name);
 
     // Check the loopback of the HCI packet
@@ -499,28 +458,17 @@
 
     std::vector<uint8_t> event;
     ASSERT_TRUE(event_queue.pop(event));
-
-    size_t compare_length = (write_name.size() > static_cast<size_t>(0xff)
-                                 ? static_cast<size_t>(0xff)
-                                 : write_name.size());
-    ASSERT_GT(event.size(), compare_length + kEventFirstPayloadByte - 1);
-
-    ASSERT_EQ(kEventLoopbackCommand, event[kEventCodeByte]);
-    ASSERT_EQ(compare_length, event[kEventLengthByte]);
-
-    // Don't compare past the end of the event.
-    if (compare_length + kEventFirstPayloadByte > event.size()) {
-      compare_length = event.size() - kEventFirstPayloadByte;
-      ALOGE("Only comparing %d bytes", static_cast<int>(compare_length));
-    }
+    auto event_view = ::bluetooth::hci::LoopbackCommandView::Create(
+        ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+            std::make_shared<std::vector<uint8_t>>(event))));
+    ASSERT_TRUE(event_view.IsValid());
+    std::vector<uint8_t> looped_back_command{event_view.GetPayload().begin(),
+                                             event_view.GetPayload().end()};
+    ASSERT_EQ(looped_back_command, write_name);
 
     if (n == num_packets - 1) {
       command_size = write_name.size();
     }
-
-    for (size_t i = 0; i < compare_length; i++) {
-      ASSERT_EQ(write_name[i], event[kEventFirstPayloadByte + i]);
-    }
   }
   logger.setTotalBytes(command_size * num_packets * 2);
 }
@@ -532,12 +480,14 @@
   for (int n = 0; n < num_packets; n++) {
     // Send a SCO packet
     std::vector<uint8_t> sco_packet;
-    sco_packet.push_back(static_cast<uint8_t>(handle & 0xff));
-    sco_packet.push_back(static_cast<uint8_t>((handle & 0x0f00) >> 8));
-    sco_packet.push_back(static_cast<uint8_t>(size & 0xff));
+    std::vector<uint8_t> payload;
     for (size_t i = 0; i < size; i++) {
-      sco_packet.push_back(static_cast<uint8_t>(i + n));
+      payload.push_back(static_cast<uint8_t>(i + n));
     }
+    ::bluetooth::packet::BitInserter bi{sco_packet};
+    ::bluetooth::hci::ScoBuilder::Create(
+        handle, ::bluetooth::hci::PacketStatusFlag::CORRECTLY_RECEIVED, payload)
+        ->Serialize(bi);
     hci->sendScoData(sco_packet);
 
     // Check the loopback of the SCO packet
@@ -545,21 +495,7 @@
     ASSERT_TRUE(
         sco_queue.tryPopWithTimeout(sco_loopback, kWaitForScoDataTimeout));
 
-    ASSERT_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;
-      }
-    }
-    ASSERT_EQ(sco_packet.size(), successful_bytes + 1);
+    ASSERT_EQ(sco_packet, sco_loopback);
   }
   logger.setTotalBytes(num_packets * size * 2);
 }
@@ -569,17 +505,18 @@
                                         uint16_t handle) {
   ThroughputLogger logger = {__func__};
   for (int n = 0; n < num_packets; n++) {
-    // Send an ACL packet
-    std::vector<uint8_t> acl_packet;
-    acl_packet.push_back(static_cast<uint8_t>(handle & 0xff));
-    acl_packet.push_back(static_cast<uint8_t>((handle & 0x0f00) >> 8) |
-                         kAclBroadcastPointToPoint |
-                         kAclPacketBoundaryFirstAutoFlushable);
-    acl_packet.push_back(static_cast<uint8_t>(size & 0xff));
-    acl_packet.push_back(static_cast<uint8_t>((size & 0xff00) >> 8));
+    // Send an ACL packet with counting data
+    auto payload = std::make_unique<::bluetooth::packet::RawBuilder>();
     for (size_t i = 0; i < size; i++) {
-      acl_packet.push_back(static_cast<uint8_t>(i + n));
+      payload->AddOctets1(static_cast<uint8_t>(i + n));
     }
+    std::vector<uint8_t> acl_packet;
+    ::bluetooth::packet::BitInserter bi{acl_packet};
+    ::bluetooth::hci::AclBuilder::Create(
+        handle,
+        ::bluetooth::hci::PacketBoundaryFlag::FIRST_AUTOMATICALLY_FLUSHABLE,
+        ::bluetooth::hci::BroadcastFlag::POINT_TO_POINT, std::move(payload))
+        ->Serialize(bi);
     hci->sendAclData(acl_packet);
 
     std::vector<uint8_t> acl_loopback;
@@ -587,21 +524,7 @@
     ASSERT_TRUE(
         acl_queue.tryPopWithTimeout(acl_loopback, kWaitForAclDataTimeout));
 
-    ASSERT_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;
-      }
-    }
-    ASSERT_EQ(acl_packet.size(), successful_bytes + 1);
+    ASSERT_EQ(acl_packet, acl_loopback);
   }
   logger.setTotalBytes(num_packets * size * 2);
 }
@@ -620,23 +543,29 @@
     }
     std::vector<uint8_t> event;
     EXPECT_TRUE(event_queue.pop(event));
-
-    EXPECT_EQ(kEventNumberOfCompletedPackets, event[kEventCodeByte]);
-    EXPECT_EQ(1, event[kEventNumberOfCompletedPacketsNumHandles]);
-
-    uint16_t event_handle = event[3] + (event[4] << 8);
-    EXPECT_EQ(handle, event_handle);
-
-    packets_processed += event[5] + (event[6] << 8);
+    auto event_view = ::bluetooth::hci::NumberOfCompletedPacketsView::Create(
+        ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+            std::make_shared<std::vector<uint8_t>>(event))));
+    if (!event_view.IsValid()) {
+      ADD_FAILURE();
+      return packets_processed;
+    }
+    auto completed_packets = event_view.GetCompletedPackets();
+    for (const auto entry : completed_packets) {
+      EXPECT_EQ(handle, entry.connection_handle_);
+      packets_processed += entry.host_num_of_completed_packets_;
+    }
   }
   return packets_processed;
 }
 
 // Send local loopback command and initialize SCO and ACL handles.
 void BluetoothAidlTest::enterLoopbackMode() {
-  std::vector<uint8_t> cmd{kCommandHciWriteLoopbackModeLocal,
-                           kCommandHciWriteLoopbackModeLocal +
-                               sizeof(kCommandHciWriteLoopbackModeLocal)};
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  ::bluetooth::hci::WriteLoopbackModeBuilder::Create(
+      bluetooth::hci::LoopbackMode::ENABLE_LOCAL)
+      ->Serialize(bi);
   hci->sendHciCommand(cmd);
 
   // Receive connection complete events with data channels
@@ -652,34 +581,35 @@
     }
     std::vector<uint8_t> event;
     ASSERT_TRUE(event_queue.pop(event));
-    ASSERT_GT(event.size(),
-              static_cast<size_t>(kEventCommandCompleteStatusByte));
-    if (event[kEventCodeByte] == kEventConnectionComplete) {
-      ASSERT_GT(event.size(),
-                static_cast<size_t>(kEventConnectionCompleteType));
-      ASSERT_EQ(event[kEventLengthByte], kEventConnectionCompleteParamLength);
-      uint8_t connection_type = event[kEventConnectionCompleteType];
+    auto event_view =
+        ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+            std::make_shared<std::vector<uint8_t>>(event)));
+    ASSERT_TRUE(event_view.IsValid());
 
-      ASSERT_TRUE(connection_type == kEventConnectionCompleteTypeSco ||
-                  connection_type == kEventConnectionCompleteTypeAcl);
-
-      // Save handles
-      uint16_t handle = event[kEventConnectionCompleteHandleLsByte] |
-                        event[kEventConnectionCompleteHandleLsByte + 1] << 8;
-      if (connection_type == kEventConnectionCompleteTypeSco) {
-        sco_connection_handles.push_back(handle);
-      } else {
-        acl_connection_handles.push_back(handle);
+    if (event_view.GetEventCode() ==
+        ::bluetooth::hci::EventCode::CONNECTION_COMPLETE) {
+      auto complete_view =
+          ::bluetooth::hci::ConnectionCompleteView::Create(event_view);
+      ASSERT_TRUE(complete_view.IsValid());
+      switch (complete_view.GetLinkType()) {
+        case ::bluetooth::hci::LinkType::ACL:
+          acl_connection_handles.push_back(complete_view.GetConnectionHandle());
+          break;
+        case ::bluetooth::hci::LinkType::SCO:
+          sco_connection_handles.push_back(complete_view.GetConnectionHandle());
+          break;
+        default:
+          ASSERT_EQ(complete_view.GetLinkType(),
+                    ::bluetooth::hci::LinkType::ACL);
       }
-
-      ALOGD("Connect complete type = %d handle = %d",
-            event[kEventConnectionCompleteType], handle);
       connection_event_count++;
     } else {
-      ASSERT_EQ(kEventCommandComplete, event[kEventCodeByte]);
-      ASSERT_EQ(cmd[0], event[kEventCommandCompleteOpcodeLsByte]);
-      ASSERT_EQ(cmd[1], event[kEventCommandCompleteOpcodeLsByte + 1]);
-      ASSERT_EQ(kHciStatusSuccess, event[kEventCommandCompleteStatusByte]);
+      auto command_complete_view =
+          ::bluetooth::hci::WriteLoopbackModeCompleteView::Create(
+              ::bluetooth::hci::CommandCompleteView::Create(event_view));
+      ASSERT_TRUE(command_complete_view.IsValid());
+      ASSERT_EQ(::bluetooth::hci::ErrorCode::SUCCESS,
+                command_complete_view.GetStatus());
       command_complete_received = true;
     }
   }
@@ -690,59 +620,75 @@
 
 // Send an HCI Reset with sendHciCommand and wait for a command complete event.
 TEST_P(BluetoothAidlTest, HciReset) {
-  std::vector<uint8_t> reset{kCommandHciReset,
-                             kCommandHciReset + sizeof(kCommandHciReset)};
+  std::vector<uint8_t> reset;
+  ::bluetooth::packet::BitInserter bi{reset};
+  ::bluetooth::hci::ResetBuilder::Create()->Serialize(bi);
   hci->sendHciCommand(reset);
 
-  wait_for_command_complete_event(reset);
+  wait_for_command_complete_event(::bluetooth::hci::OpCode::RESET);
 }
 
 // Read and check the HCI version of the controller.
 TEST_P(BluetoothAidlTest, HciVersionTest) {
-  std::vector<uint8_t> cmd{kCommandHciReadLocalVersionInformation,
-                           kCommandHciReadLocalVersionInformation +
-                               sizeof(kCommandHciReadLocalVersionInformation)};
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  ::bluetooth::hci::ReadLocalVersionInformationBuilder::Create()->Serialize(bi);
   hci->sendHciCommand(cmd);
 
   ASSERT_NO_FATAL_FAILURE(wait_for_event());
 
   std::vector<uint8_t> event;
   ASSERT_TRUE(event_queue.pop(event));
-  ASSERT_GT(event.size(), static_cast<size_t>(kEventLocalLmpVersionByte));
-
-  ASSERT_EQ(kEventCommandComplete, event[kEventCodeByte]);
-  ASSERT_EQ(cmd[0], event[kEventCommandCompleteOpcodeLsByte]);
-  ASSERT_EQ(cmd[1], event[kEventCommandCompleteOpcodeLsByte + 1]);
-  ASSERT_EQ(kHciStatusSuccess, event[kEventCommandCompleteStatusByte]);
-
-  ASSERT_LE(kHciMinimumHciVersion, event[kEventLocalHciVersionByte]);
-  ASSERT_LE(kHciMinimumLmpVersion, event[kEventLocalLmpVersionByte]);
+  auto complete_view =
+      ::bluetooth::hci::ReadLocalVersionInformationCompleteView::Create(
+          ::bluetooth::hci::CommandCompleteView::Create(
+              ::bluetooth::hci::EventView::Create(
+                  ::bluetooth::hci::PacketView<true>(
+                      std::make_shared<std::vector<uint8_t>>(event)))));
+  ASSERT_TRUE(complete_view.IsValid());
+  ASSERT_EQ(::bluetooth::hci::ErrorCode::SUCCESS, complete_view.GetStatus());
+  auto version = complete_view.GetLocalVersionInformation();
+  ASSERT_LE(::bluetooth::hci::HciVersion::V_3_0, version.hci_version_);
+  ASSERT_LE(::bluetooth::hci::LmpVersion::V_3_0, version.lmp_version_);
 }
 
 // Send an unknown HCI command and wait for the error message.
 TEST_P(BluetoothAidlTest, HciUnknownCommand) {
-  std::vector<uint8_t> cmd{
-      kCommandHciShouldBeUnknown,
-      kCommandHciShouldBeUnknown + sizeof(kCommandHciShouldBeUnknown)};
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  ::bluetooth::hci::CommandBuilder::Create(
+      static_cast<::bluetooth::hci::OpCode>(0x3cff),
+      std::make_unique<::bluetooth::packet::RawBuilder>())
+      ->Serialize(bi);
   hci->sendHciCommand(cmd);
 
   ASSERT_NO_FATAL_FAILURE(wait_for_event());
 
   std::vector<uint8_t> event;
   ASSERT_TRUE(event_queue.pop(event));
+  auto event_view =
+      ::bluetooth::hci::EventView::Create(::bluetooth::hci::PacketView<true>(
+          std::make_shared<std::vector<uint8_t>>(event)));
+  ASSERT_TRUE(event_view.IsValid());
 
-  ASSERT_GT(event.size(), static_cast<size_t>(kEventCommandCompleteStatusByte));
-  if (event[kEventCodeByte] == kEventCommandComplete) {
-    ASSERT_EQ(cmd[0], event[kEventCommandCompleteOpcodeLsByte]);
-    ASSERT_EQ(cmd[1], event[kEventCommandCompleteOpcodeLsByte + 1]);
-    ASSERT_EQ(kHciStatusUnknownHciCommand,
-              event[kEventCommandCompleteStatusByte]);
-  } else {
-    ASSERT_EQ(kEventCommandStatus, event[kEventCodeByte]);
-    ASSERT_EQ(cmd[0], event[kEventCommandStatusOpcodeLsByte]);
-    ASSERT_EQ(cmd[1], event[kEventCommandStatusOpcodeLsByte + 1]);
-    ASSERT_EQ(kHciStatusUnknownHciCommand,
-              event[kEventCommandStatusStatusByte]);
+  switch (event_view.GetEventCode()) {
+    case ::bluetooth::hci::EventCode::COMMAND_COMPLETE: {
+      auto command_complete =
+          ::bluetooth::hci::CommandCompleteView::Create(event_view);
+      ASSERT_TRUE(command_complete.IsValid());
+      ASSERT_EQ(command_complete.GetPayload()[0],
+                static_cast<uint8_t>(
+                    ::bluetooth::hci::ErrorCode::UNKNOWN_HCI_COMMAND));
+    } break;
+    case ::bluetooth::hci::EventCode::COMMAND_STATUS: {
+      auto command_status =
+          ::bluetooth::hci::CommandStatusView::Create(event_view);
+      ASSERT_TRUE(command_status.IsValid());
+      ASSERT_EQ(command_status.GetStatus(),
+                ::bluetooth::hci::ErrorCode::UNKNOWN_HCI_COMMAND);
+    } break;
+    default:
+      ADD_FAILURE();
   }
 }
 
@@ -851,20 +797,22 @@
 
 // Set all bits in the event mask
 TEST_P(BluetoothAidlTest, SetEventMask) {
-  std::vector<uint8_t> set_event_mask{
-      0x01, 0x0c, 0x08 /*parameter bytes*/, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-      0xff, 0xff};
-  hci->sendHciCommand({set_event_mask});
-  wait_for_command_complete_event(set_event_mask);
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  uint64_t full_mask = UINT64_MAX;
+  ::bluetooth::hci::SetEventMaskBuilder::Create(full_mask)->Serialize(bi);
+  hci->sendHciCommand(cmd);
+  wait_for_command_complete_event(::bluetooth::hci::OpCode::SET_EVENT_MASK);
 }
 
 // Set all bits in the LE event mask
 TEST_P(BluetoothAidlTest, SetLeEventMask) {
-  std::vector<uint8_t> set_event_mask{
-      0x20, 0x0c, 0x08 /*parameter bytes*/, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-      0xff, 0xff};
-  hci->sendHciCommand({set_event_mask});
-  wait_for_command_complete_event(set_event_mask);
+  std::vector<uint8_t> cmd;
+  ::bluetooth::packet::BitInserter bi{cmd};
+  uint64_t full_mask = UINT64_MAX;
+  ::bluetooth::hci::LeSetEventMaskBuilder::Create(full_mask)->Serialize(bi);
+  hci->sendHciCommand(cmd);
+  wait_for_command_complete_event(::bluetooth::hci::OpCode::LE_SET_EVENT_MASK);
 }
 
 // Call initialize twice, second one should fail.