Index: device/generic_sensor/platform_sensor_iio.h |
diff --git a/device/generic_sensor/platform_sensor_iio.h b/device/generic_sensor/platform_sensor_iio.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..334e8350c91be7cdbe241b45bfaf75ce478415f2 |
--- /dev/null |
+++ b/device/generic_sensor/platform_sensor_iio.h |
@@ -0,0 +1,75 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_IIO_H_ |
+#define DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_IIO_H_ |
+ |
+#include "device/generic_sensor/platform_sensor.h" |
+ |
+#include "base/threading/thread.h" |
+#include "base/timer/timer.h" |
shalamov
2016/10/19 16:37:11
forward declare
maksims (do not use this acc)
2016/10/20 09:50:36
Done.
|
+#include "device/generic_sensor/iio/platform_sensor_utils_iio.h" |
+#include "device/generic_sensor/iio/sensor_data_iio.h" |
shalamov
2016/10/19 16:37:11
ditto
maksims (do not use this acc)
2016/10/20 09:50:36
Done.
|
+ |
+namespace base { |
+class SingleThreadTaskRunner; |
+} |
+ |
+namespace device { |
+ |
+class PlatformSensorIio : public PlatformSensor { |
+ public: |
+ PlatformSensorIio(mojom::SensorType type, |
+ mojo::ScopedSharedBufferMapping mapping, |
+ PlatformSensorProvider* provider, |
+ const SensorDataIio& data, |
+ std::unique_ptr<base::Thread> polling_thread, |
+ std::unique_ptr<SensorReader> sensor_reader); |
+ |
+ // Thread safe. |
+ mojom::ReportingMode GetReportingMode() override; |
+ |
+ protected: |
+ ~PlatformSensorIio() override; |
+ bool StartSensor(const PlatformSensorConfiguration& configuration) override; |
+ void StopSensor() override; |
+ bool CheckSensorConfiguration( |
+ const PlatformSensorConfiguration& configuration) override; |
+ PlatformSensorConfiguration GetDefaultConfiguration() override; |
+ |
+ private: |
+ void BeginPoll(const PlatformSensorConfiguration& configuration); |
+ void StopPoll(); |
+ |
+ // Triggers |sensor_reader_| to read new sensor data. |
+ // If new data is read, UpdateSensorReading() is called. |
+ void PollForReadingData(); |
+ |
+ // Owned timer to be deleted on a polling thread. |
+ base::RepeatingTimer* timer_; |
+ |
+ const PlatformSensorConfiguration default_configuration_; |
+ const mojom::ReportingMode reporting_mode_; |
+ |
+ // A sensor reader that reads values from sensor files |
+ // and stores them to a SensorReading structure. |
+ std::unique_ptr<SensorReader> sensor_reader_; |
+ |
+ // A thread that is used to poll sensor data. |
+ std::unique_ptr<base::Thread> polling_thread_; |
+ scoped_refptr<base::SingleThreadTaskRunner> polling_thread_task_runner_; |
+ |
+ // Stores previously read values that are used to |
+ // determine whether the recent values are changed |
+ // and IPC can be notified that updates are available. |
+ SensorReading old_values_; |
+ |
+ base::WeakPtrFactory<PlatformSensorIio> weak_factory_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(PlatformSensorIio); |
+}; |
+ |
+} // namespace device |
+ |
+#endif // DEVICE_GENERIC_SENSOR_PLATFORM_SENSOR_IIO_H_ |