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/*
* Copyright (C) 2017 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.
*/
#ifndef CHRE_PLATFORM_PLATFORM_GNSS_H_
#define CHRE_PLATFORM_PLATFORM_GNSS_H_
#include "chre/target_platform/platform_gnss_base.h"
#include "chre/util/time.h"
namespace chre {
class PlatformGnss : public PlatformGnssBase {
public:
/**
* Performs platform-specific deinitialization of the PlatformGnss instance.
*/
~PlatformGnss();
/**
* Initializes the platform-specific GNSS implementation. This is potentially
* called at a later stage of initialization than the constructor, so platform
* implementations are encouraged to put any blocking initialization here.
*/
void init();
/**
* Returns the set of GNSS capabilities that the platform has exposed. This
* may return CHRE_GNSS_CAPABILITIES_NONE if GNSS is not supported.
*
* @return the GNSS capabilities exposed by this platform.
*/
uint32_t getCapabilities();
/**
* Starts/stops/modifies the GNSS location session. This is an asynchronous
* request and the result is delivered through an async call into the
* GNSS manager.
*
* @param enable Whether to enable/disable the location session.
* @param minInterval The minimum reporting interval.
* @param minTimeToNextFix The minimum time to the next fix.
*
* @return true if the request was accepted.
*/
bool controlLocationSession(bool enable, Milliseconds minInterval,
Milliseconds minTimeToNextFix);
/**
* Releases a location event that was previously provided to the GNSS manager.
*
* @param event the event to release.
*/
void releaseLocationEvent(chreGnssLocationEvent *event);
/**
* Starts/stops/modifies the GNSS measurement session. This is an asynchronous
* request and the result is delivered through an async call into the
* GNSS manager.
*
* @param enable Whether to enable/disable the measurement session.
* @param minInterval The minimum reporting interval.
*
* @return true if the request was accepted.
*/
bool controlMeasurementSession(bool enable, Milliseconds minInterval);
/**
* Releases a measurement data event that was previously provided to the GNSS
* manager.
*
* @param event the event to release.
*/
void releaseMeasurementDataEvent(chreGnssDataEvent *event);
};
} // namespace chre
#endif // CHRE_PLATFORM_PLATFORM_GNSS_H_
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