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
remove old sensor service and implement SensorManager
on top of the new (native) SensorManger API.
Change-Id: Iddb77d498755da3e11646473a44d651f12f40281
