| commit | 7c8bab231328956d3b7569280cb162be4e345422 | [log] [tgz] |
|---|---|---|
| author | Jakub Pawlowski <jpawlowski@google.com> | Thu Apr 27 04:52:34 2017 -0700 |
| committer | Andre Eisenbach <eisenbach@google.com> | Thu Apr 27 18:38:38 2017 +0000 |
| tree | 6cee0078cd2210697494b2819ab17d58816668b3 | |
| parent | 99c34224429dff42761b8629b9161872f1a1ab8d [diff] |
Fix LE disconnecting right after pairing When a device connect to android over LE, the default policy is to keep this connection. If any app "claims" this connnection, and then stop using it, we'll disconnect from the device after a short timeout. If pairing is triggered to such device, that is connected but not used by any app, it will cause disconnect after the pairing is finished. This is because using SMP over fixed LE L2CAP channel is conseidered as connecting, using, and disconnecting a channel by the stack. This is obvious logic error - using fixed channels should not require "connecting" to them. As a temporary workaround, do not trigger a timeout when a fixed SMP channel is closed over LE. For LE only devices, this means they will stay connected after the pairing until some app starts using them or they disconnect. For dual mode devices, Classic connection will be established and SDP will be performed. The classic connection will be disconnected if no app will use it, and the LE connection to the device will stay up. Bug: 37352720 Test: manual Change-Id: Ic9d688aacf84e0267277b12b28dfa7cc57fdcea6
Just build AOSP - Fluoride is there by default.
Instructions for Ubuntu, tested on 14.04 with Clang 3.5.0 and 16.10 with Clang 3.8.0
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
cd ~/fluoride/bt gn gen out/Default
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.
cd ~/fluoride/bt/out/Default LD_LIBRARY_PATH=./ ./bluetoothtbd -create-ipc-socket=fluoride
Follows the Chromium project Eclipse Setup Instructions until "Optional: Building inside Eclipse" section (don't do that section, we will set it up differently)
Generate Eclipse settings:
cd system/bt gn gen --ide=eclipse out/Default
In Eclipse, do File->Import->C/C++->C/C++ Project Settings, choose the XML location under system/bt/out/Default
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"
Goto Behaviour tab, change clean command to "-t clean"