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蓝牙
架构
| 组件 | 说明 |
|---|---|
| LibHardware | 指定硬件抽象层（HAL）;定义了蓝牙堆栈必须实现的所有HAL接口。 |
| 蓝牙接口层 | ■实现JNI调用调用的HAL接口 ■维护JNI注册的回调 ■根据蓝牙应用层（BTA）堆栈的回调调用JNI回调 ■提供应用程序的接口 |
| BTA（与Android应用程序不同） | ■实现蓝牙配置文件 ■维护配置文件状态机 ■处理堆栈中的事件并将事件发送回接口层 |
| BlueDroid堆栈 | 实现核心堆栈和协议 |
| HCI层 | ■构建为共享库（libbt-hci） ■充当传输层和堆栈之间的接口■支持HCI H4;例如，将上层的串行驱动程序调用粘合在一起 |
| 蓝牙应用 | 包括以下内容 ■Bluetooth.apk，包含蓝牙配置文件服务和其他蓝牙功能;进程由设置UI启动 ■BluetoothExt.apk，包含Qualcomm添加的蓝牙配置文件服务;进程由设置UI启动 ■蓝牙中间件组件 |
源码
| Contents of folder | Folder path |
|---|---|
| BlueDroid stack user space component | external/bluetooth/bluedroid/ |
| Android Bluetooth profile interface files | frameworks/base/core/java/android/bluetooth |
| Android native Java files OBEX profile implementation | frameworks/base/obex/ |
| OBEX profile implementation | packages/apps/Bluetooth |
| Bluetooth setting application in Java | vendor/qcom/opensource-bluetooth, packages/apps/Settings/src/com/android/settings/bluetooth |
| Android Bluetooth profile service files | packages/apps/Bluetooth/src/com/android/bluetooth |
| APIs to control the Bluetooth profiles | frameworks/base/core/java/android/bluetooth |
| Android Bluetooth JNI files | packages/apps/Bluetooth/jni |
| BluetoothExt.apk directory | vendor/qcom/opensource/bluetooth |
| SAP application layer files | vendor/qcom/opensource/bluetooth/src/com/android/sap |
| Android default messaging application in Java | packages/apps/Mms |
| Android default email application in Java | packages/apps/Email |
| PBAP files | packages/apps/Bluetooth/src/com/android/bluetooth/pbap |
| OPP files | packages/apps/Bluetooth/src/com/android/bluetooth/opp |
| FTP files | vendor/qcom/opensource/bluetooth/ftp |
| A2DP files | packages/apps/Bluetooth/src/com/android/bluetooth/a2dp/ |
| MAP files | /packages/apps/Bluetooth/src/com/android/bluetooth/map/ |
| AVRCP CoverArt files | vendor/qcomm/opensource/bluetooth_ext/packages_apps_bluetooth_ext/avrcp |
| AVRCP files | packages/apps/Bluetooth/src/com/android/bluetooth/avrcp/ |