Add default Bluetooth HAL implementation
Also added initial target-side functional test.
Test: bluetooth_hidl_hal_test
Bug: 31972505
Change-Id: I1f574a5b2b53d7fbf65dbb4e1aaa5f8b6c5a9448
diff --git a/bluetooth/1.0/default/vendor_interface.h b/bluetooth/1.0/default/vendor_interface.h
new file mode 100644
index 0000000..133c51b
--- /dev/null
+++ b/bluetooth/1.0/default/vendor_interface.h
@@ -0,0 +1,82 @@
+//
+// Copyright 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.
+//
+
+#pragma once
+
+#include <hidl/HidlSupport.h>
+
+#include "async_fd_watcher.h"
+#include "bt_vendor_lib.h"
+#include "hci_internals.h"
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::hidl_vec;
+using PacketReadCallback = std::function<void(HciPacketType, const hidl_vec<uint8_t>&)>;
+
+class VendorInterface {
+ public:
+ static bool Initialize(PacketReadCallback packet_read_cb);
+ static void Shutdown();
+ static VendorInterface* get();
+
+ size_t Send(const uint8_t *data, size_t length);
+
+ void OnFirmwareConfigured(uint8_t result);
+
+ // Actually send the data.
+ size_t SendPrivate(const uint8_t *data, size_t length);
+
+ private:
+ VendorInterface() { queued_data_.resize(0); }
+ virtual ~VendorInterface() = default;
+
+ bool Open(PacketReadCallback packet_read_cb);
+ void Close();
+
+ void OnDataReady(int fd);
+
+ // Queue data from Send() until the interface is ready.
+ hidl_vec<uint8_t> queued_data_;
+
+ void *lib_handle_;
+ bt_vendor_interface_t *lib_interface_;
+ AsyncFdWatcher fd_watcher_;
+ int uart_fd_;
+ PacketReadCallback packet_read_cb_;
+ bool firmware_configured_;
+
+ enum HciParserState {
+ HCI_IDLE,
+ HCI_TYPE_READY,
+ HCI_PAYLOAD
+ };
+ HciParserState hci_parser_state_{HCI_IDLE};
+ HciPacketType hci_packet_type_{HCI_PACKET_TYPE_UNKNOWN};
+ hidl_vec<uint8_t> hci_packet_;
+ size_t hci_packet_bytes_remaining_;
+ size_t hci_packet_bytes_read_;
+};
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace bluetooth
+} // namespace hardware
+} // namespace android