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Diffstat (limited to 'libs/gui/SensorManager.cpp')
-rw-r--r-- | libs/gui/SensorManager.cpp | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/libs/gui/SensorManager.cpp b/libs/gui/SensorManager.cpp new file mode 100644 index 0000000..d719efb --- /dev/null +++ b/libs/gui/SensorManager.cpp @@ -0,0 +1,87 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "Sensors" + +#include <stdint.h> +#include <sys/types.h> + +#include <utils/Errors.h> +#include <utils/RefBase.h> +#include <utils/Singleton.h> + +#include <binder/IServiceManager.h> + +#include <gui/ISensorServer.h> +#include <gui/ISensorEventConnection.h> +#include <gui/Sensor.h> +#include <gui/SensorManager.h> +#include <gui/SensorEventQueue.h> + +// ---------------------------------------------------------------------------- +namespace android { +// ---------------------------------------------------------------------------- + +ANDROID_SINGLETON_STATIC_INSTANCE(SensorManager) + +SensorManager::SensorManager() + : mSensorList(0) +{ + const String16 name("sensorservice"); + while (getService(name, &mSensorServer) != NO_ERROR) { + usleep(250000); + } + + mSensors = mSensorServer->getSensorList(); + size_t count = mSensors.size(); + mSensorList = (Sensor const**)malloc(count * sizeof(Sensor*)); + for (size_t i=0 ; i<count ; i++) { + mSensorList[i] = mSensors.array() + i; + } +} + +SensorManager::~SensorManager() +{ + free(mSensorList); +} + +ssize_t SensorManager::getSensorList(Sensor const* const** list) const +{ + *list = mSensorList; + return mSensors.size(); +} + +Sensor const* SensorManager::getDefaultSensor(int type) +{ + // For now we just return the first sensor of that type we find. + // in the future it will make sense to let the SensorService make + // that decision. + for (size_t i=0 ; i<mSensors.size() ; i++) { + if (mSensorList[i]->getType() == type) + return mSensorList[i]; + } + return NULL; +} + +sp<SensorEventQueue> SensorManager::createEventQueue() +{ + sp<SensorEventQueue> result = new SensorEventQueue( + mSensorServer->createSensorEventConnection()); + return result; +} + +// ---------------------------------------------------------------------------- +}; // namespace android |