Lines Matching refs:sensor

31      * The SensorInfo for each sensor returned by getSensorsList must be stable
33      * entire system restarts. The SensorInfo for each sensor must not change
35      * HAL and its dependencies (for example, the sensor handle for a given
36      * sensor must not change across HAL restarts).
46      *    Data is injected for the supported sensors by the sensor service in
56      * Activate/de-activate one sensor.
58      * After sensor de-activation, existing sensor events that have not
60      * subsequent activations do not get stale sensor events (events
63      * @param sensorHandle is the handle of the sensor to change.
64      * @param enabled set to true to enable, or false to disable the sensor.
74      * framework of asynchronous events, such as a dynamic sensor connection.
76      * The Event FMQ is used to transport sensor events from the HAL to the
80      * sensor events, the HAL writes the sensor events to the Event FMQ.
82      * Once the HAL is finished writing sensor events to the Event FMQ, the HAL
83      * must notify the framework that sensor events are available to be read and
113      * asynchronous events, such as a dynamic sensor connection.
130      * All active sensor requests and direct channels must be closed and
138      *     create the Event FMQ which is where sensor events are written. The
140      *     sensor events.
159      * Sets a sensor’s parameters, including sampling frequency and maximum
160      * report latency. This function can be called while the sensor is
161      * activated, in which case it must not cause any sensor measurements to
166      * @param sensorHandle handle of sensor to be changed.
167      * @param samplingPeriodNs specifies sensor sample period in nanoseconds.
182      * FIFO for the specified sensor and flushes the FIFO.  If the FIFO is empty
183      * or if the sensor doesn't support batching (FIFO size zero), return
185      * This applies to all sensors other than one-shot sensors. If the sensor
186      * is a one-shot sensor, flush must return BAD_VALUE and not generate any
187      * flush complete metadata.  If the sensor is not active at the time flush()
190      * @param sensorHandle handle of sensor to be flushed.
196      * Inject a single sensor event or push operation environment parameters to
205      * injecting sensor events.
208      * type events should not be routed back to the sensor event queue.
212      * @param event sensor event to be injected
215      *     BAD_VALUE if sensor event cannot be injected.
223      * return, the sensor hardware is responsible for resetting the memory
228      *     not consistent; NO_MEMORY if shared memory cannot be used by sensor
242      * registerDirectChannel, and remove all active sensor report configured in
243      * still active sensor report configured in the direct channel.
252      * Configure direct sensor event report in direct channel.
254      * This function start, modify rate or stop direct report of a sensor in a
257      * @param sensorHandle handle of sensor to be configured. When combined
263      *     rate level is not supported by sensor, channelHandle does not exist,