Maintain a per sensor circular buffer of last 10 sensor_events and the wall clock time
at which each event is received.
Change-Id: Ia50c825ab5a7aaf0932ce7dce7ac8b9be7071e77
In restricted mode, only CTS tests can register for sensors or call flush() on them. The requests
from other applications will be ignored.
Change-Id: Ieb923df3e0cfe3390fe2d052af776da79589744b
clang warns about SensorEventConnection::dump overloading BBinder::dump
in some conditions.
Since the cause isn't fixable without changing the API, tell clang not
to error out on it.
Change-Id: I15659de7c5499d937019599cfefb01305039e6b5
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>
If SensorService is holding a wake_lock and there are no acknowledgements
from ANY app within 5 seconds, release the wake_lock and reset the wake_lock
refcounts for all connections.
Bug: 16874240
Change-Id: I5e950dd393c20173c439cbd5a4ba614ee09d61f4
i) Call removeFd() only if the fd in the BitTube has been
previously added to the Looper. Use a flag to determine whether the fd
has been previously added or not.
ii) Increment mPendingFlushEventsToSend after holding a connectionLock.
iii) Store the number of acks that are pending in SensorEventQueue
and send them all at once.
Bug: 17472228
Change-Id: I1ec834fea1112a9cfbd9cddd2198438793698502
i) Initialize sensor_event.flags to zero or wake_up flag before sending dropped flush_complete_events. This will avoid unnecessary acks.
Currently it is not set to anything which may result in garbage values for flags field.
ii) Change the dump format of SensorEventConnection.
iii) Add const to method signatures wherever applicable.
Bug id: https://b2.corp.google.com/issues/17498626
Change-Id: Ia736ffb01c366540aab73cdcf596ce852c052593
i) Significant Motion multiple clients fix. Make a copy of
mActiveConnections vector before cleaning up SensorEventConnections
when one-shot sensors trigger.
ii) Maintain a mapping between flush_complete_events and
SensorEventConnections to accurately map flush() API calls and
corresponding flush_complete_events
iii) Remove all references to 1_1 and 1_2 HALs.
iv) Dynamically allocate sensor_event buffers in SensorService main
threadLoop.
Bug: 17412359
Change-Id: If3c3986197660cafef2d2e0b4dc7582e229cf1c4
i) Fix a possible race condition when adding a pending flush connection
to mActiveSensors data structure.
ii) Invalidate flush_complete_events as soon as they are consumed by a
connection so that they are not used by other connections which are
registered for the same sensor.
Change-Id: I1491bea8c2081c4aab1feacc60add13b7aa26bb7
1) Limit maxEventsToWrite depending on the size of the socket
buffer allocated (Fix for write failure on manta).
2) Do not call flush() if the sensor is not activated (OEM issue).
Change-Id: I81ea78dbdef3a3773af505ca1c9a5e39492c0b48
1) Flush should only be received by the app calling flush(). Maintain
a queue of all flush() calls and send flush_complete events in that
order.
2) Log warnings for older HALs. Remove batch() calls with DRY_RUN flag.
3) Reallocate event cache when more sensors register and the desired
maxCacheSize increases. Clear NEEDS_ACK flag in the buffer whenever
there is a write() failure.
4) More dump information. Add wake-up flag, maxDelay and timestamps for
sensor events.
Bug: 16874778
Change-Id: I195646191059fd31f75f2f07886c0f98bf9b509a
i) Send ack for wake_up sensors on the socket connection instead of using Binder RPC.
ii) Cache events per connection in case there are write failures. Compute cache size
from FIFO counts of sensors.
iii) Send FlushCompleteEvent only for apps that explicitly called flush().
Change-Id: I018969736b7794b1b930529586f2294a03ee8667
SensorService should hold a wakelock till the app reads events from a wakeup sensor. Currently drivers hold a wakelock with a
timeout while delivering events from a wake up sensor like Significant Motion. This hack can be removed now.
Bug: 9774884
Change-Id: If3b5acb99c9cf0cd29012fcfa9d6b04c74133d01
i) Emulate Flush for AOSP Fusion Sesnsors on newer HALs that support batching.
ii) Early return if there are no events for the current SensorEventConnection.
Bug: 11325707, 11376538
Change-Id: Idb856302463649a99d3d5d0c965bb06ba06b8e1d
SensorService is dead locking itself when flush is called on older devices which don't support batching. mConnectionLock is acquired twice.
Change-Id: I5c25585bfb2b396df4b05826a9cba1da7997a3ee
i) SensorService dropping events. Increase SOCKET_BUFFER_SIZE in BitTube ctor.
ii) Call flush before every activate.
iii) Emulate flush for older devices. Add a trivial flush complete event when flush is called.
Bug: 10641596
Change-Id: I30d0f3948e830457143f16e157b6ad81908687ce
sensorservice would deadlock if for some reason
a sensor failed to enable.
simplifed the code a bit, and made it behave a little
closer to mr1.1 -- I couldn't convince myself that
some changes in how locks were used were correct.
Bug: 9794362
Change-Id: I6110f5dbb67e543f1c71d127de2299232badb36a
1) "google" sensors are now reporting AOSP as the vendor string
2) don't expose the system's sensor fusion if the HAL provides it
3) use uncalibrated gyro if availble for the system's sensor fusion
Change-Id: I25140436cdb29d55e39fd6fbbf8c44a410a83d5c
1. Some sensors can wake up the AP. Add wakelocks.
2. Handle backward compatibility for rotation vector
heading accuracy.
3. Cleanup auto disabled sensors.
4. Fix race condition between enable and dispatch.
Change-Id: I39dddf12e208d83cd288201986ee994312555820
if debug.sensors is true, extra debugging
sensors are enabled and HAL provided sensor fusion
is disabled
Change-Id: I9b093424edb8c5363d1337237cdf6abe4ab266f9
This is intended to absorb the cost of the IPC
to the permission controller.
Cached permission checks cost about 3us, while
full blown ones are two orders of magnitude slower.
CAVEAT: PermissionCache can only handle system
permissions safely for now, because the cache is
not purged upon global permission changes.
Change-Id: I8b8a5e71e191e3c01e8f792f253c379190eee62e
when we do our own sensor fusion, we also export an
improved orientation sensor and hide the HAL sensor.
The fused orientation sensor is much more precise, fast
and smooth.
Change-Id: I0ea843b47ad9d12f6b22cce51f8629852d423126
when an app dies, make sure to disable all sensors that process
is connected to, regardless of wether this was the LAST connection
to this sensor.
Change-Id: I9c72b1792eee03815304674d5c2f25b5270e4748
Rework sensorservice to allow "virtual sensors", that is
sensors that report a synthetized value based on real sensors.
the main change to sensorservice is around managing which real
sensor need to be activated and which rate to use.
The logic for all this has been moved into SensorDevice, which
essentially wraps the sensor HAL but adds two features to it:
- it keeps track of which sensors need to be activated
- it keeps track of what rate needs to be used
For this purpose an "identity" is associated with each real sensor
activation, so we can track them.
On start-up we check for gravity, linear-acceleration and
rotation-vector sensors, if they're not present in the HAL, we
synthetize them in sensor-service.
Change-Id: I841db2c1b37ef127ed571efa21732ecc5adf1800
the per-connection state assumed the main sensorservice
lock was held during access. This is however not true while
pre-processing the events just before sending them to clients.
Therefore, there was a small window during which this state
could be modified while being used.
we now have an internal lock that protects this state.
Change-Id: I594680f20f09d6a4f1f38f093a1d3f650dcef1be
We only recorded the last received event (which is needed when a sensor
is activated on a connection) when there was some connection active.
This should fix an issue where sometimes the light sensor doesn't
return an event whent activated.
we also didn't need to hold the main lock while dispatching events
to clients.
Change-Id: I6c6386c040051ce205e3c0516c678e0603fa45e1
the increased maximum rate is needed for proper gyro integration, current gyro
parts can sample at up to 800Hz
Change-Id: Ide75f6d5bc7a0fdafeb2dafd72db39e7afb9e794
SensorService now correctly sends the last known
state of a sensor as soon as a new connection is made.
This fixes the issue where, for instance, an application
could wait a long time before getting the light or proximity
sensor initial state.
Change-Id: Ic41392f3626e26c4f15746c7e17c7ecd44bbb10b
