HIDD: Auto-plug and accept incoming connections

Linux, Windows, and OSX try to connect with HID devices during
pairing. We should auto-plug and accept incoming connections if
there is currently no device connected.

In case of Windows, if it fails to connect the first time right
after pairing, all future connections are guaranteed to fail:
hangs in the "response pending" state at L2CAP connection, right
after SECURITY_COMPLETE, looks like a bug in Windows stack.

Since we always have a plugged, "in_use" device in registered
state, we won't be able to accept a new incoming connection,
unless we don't have any other paired device at all. This check
should be removed to allow smoother pairing experience and fix
Windows compatibility.

Bug: 66940516
Test: manual, with a test app
Change-Id: Ie6ca639cb120b52f59880fadb4d3654a095664d6
1 file changed
tree: d344ce6070723ee2e7a4bedfa1147bc37eab88d3
  1. audio_a2dp_hw/
  2. binder/
  3. bta/
  4. btcore/
  5. btif/
  6. build/
  7. conf/
  8. device/
  9. doc/
  10. embdrv/
  11. hci/
  12. include/
  13. main/
  14. osi/
  15. service/
  16. stack/
  17. test/
  18. tools/
  19. types/
  20. udrv/
  21. utils/
  22. vendor_libs/
  23. vnd/
  24. .clang-format
  25. .gitignore
  26. .gn
  27. Android.bp
  28. Android.mk
  29. BUILD.gn
  30. CleanSpec.mk
  31. EventLogTags.logtags
  32. MODULE_LICENSE_APACHE2
  33. NOTICE
  34. OWNERS
  35. PREUPLOAD.cfg
  36. README.md
README.md

Fluoride Bluetooth stack

Building and running on AOSP

Just build AOSP - Fluoride is there by default.

Building and running on Linux

Instructions for Ubuntu, tested on 14.04 with Clang 3.5.0 and 16.10 with Clang 3.8.0

Download source

mkdir ~/fluoride
cd ~/fluoride
git clone https://android.googlesource.com/platform/system/bt

Install dependencies (require sudo access):

cd ~/fluoride/bt
build/install_deps.sh

Then fetch third party dependencies:

cd ~/fluoride/bt
mkdir third_party
cd third_party
git clone https://github.com/google/googletest.git
git clone https://android.googlesource.com/platform/external/aac
git clone https://android.googlesource.com/platform/external/libchrome
git clone https://android.googlesource.com/platform/external/libldac
git clone https://android.googlesource.com/platform/external/modp_b64
git clone https://android.googlesource.com/platform/external/tinyxml2
git clone https://android.googlesource.com/platform/hardware/libhardware

And third party dependencies of third party dependencies:

cd fluoride/bt/third_party/libchrome/base/third_party
mkdir valgrind
cd valgrind
curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/valgrind.h?format=TEXT | base64 -d > valgrind.h
curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/memcheck.h?format=TEXT | base64 -d > memcheck.h

NOTE: If system/bt is checked out under AOSP, then create symbolic links instead of downloading sources

cd system/bt
mkdir third_party
cd third_party
ln -s ../../../external/aac aac
ln -s ../../../external/libchrome libchrome
ln -s ../../../external/libldac libldac
ln -s ../../../external/modp_b64 modp_b64
ln -s ../../../external/tinyxml2 tinyxml2
ln -s ../../../hardware/libhardware libhardware
ln -s ../../../external/googletest googletest

Generate your build files

cd ~/fluoride/bt
gn gen out/Default

Build

cd ~/fluoride/bt
ninja -C out/Default all

This will build all targets (the shared library, executables, tests, etc) and put them in out/Default. To build an individual target, replace "all" with the target of your choice, e.g. ninja -C out/Default net_test_osi.

Run

cd ~/fluoride/bt/out/Default
LD_LIBRARY_PATH=./ ./bluetoothtbd -create-ipc-socket=fluoride

Eclipse IDE Support

  1. Follows the Chromium project Eclipse Setup Instructions until "Optional: Building inside Eclipse" section (don't do that section, we will set it up differently)

  2. Generate Eclipse settings:

cd system/bt
gn gen --ide=eclipse out/Default
  1. In Eclipse, do File->Import->C/C++->C/C++ Project Settings, choose the XML location under system/bt/out/Default

  2. Right click on the project. Go to Preferences->C/C++ Build->Builder Settings. Uncheck "Use default build command", but instead using "ninja -C out/Default"

  3. Goto Behaviour tab, change clean command to "-t clean"