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/**
* \file bluetooth_device_scanner.h
* \brief BluetoothDeviceScanner class header file.
*
* Copyright (c) 2013, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SRC_COMPONENTS_TRANSPORT_MANAGER_INCLUDE_TRANSPORT_MANAGER_BLUETOOTH_BLUETOOTH_DEVICE_SCANNER_H_
#define SRC_COMPONENTS_TRANSPORT_MANAGER_INCLUDE_TRANSPORT_MANAGER_BLUETOOTH_BLUETOOTH_DEVICE_SCANNER_H_
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <bluetooth/sdp.h>
#include <bluetooth/sdp_lib.h>
#include <bluetooth/rfcomm.h>
#include "transport_manager/transport_adapter/device_scanner.h"
#include "utils/conditional_variable.h"
#include "utils/lock.h"
#include "utils/threads/thread.h"
namespace transport_manager {
namespace transport_adapter {
class TransportAdapterController;
/**
* @brief Scan for devices using bluetooth.
*/
class BluetoothDeviceScanner : public DeviceScanner {
public:
/**
* @brief Constructor.
* @param controller Transport adapter controller
* @param auto_repeat_search true - autorepeated or continous device search, false - search on demand
* @param repeat_search_pause_sec - pause between device searches, 0 means continous search
*/
BluetoothDeviceScanner(TransportAdapterController* controller,
bool auto_repeat_search, int repeat_search_pause_sec);
/**
* @brief Destructor.
*/
~BluetoothDeviceScanner();
/**
* @brief Main thread initialization.
*/
void Thread();
protected:
/**
* @brief Start device scanner.
*
* @return Error information about reason of initialization failure.
*/
virtual TransportAdapter::Error Init();
/**
* @brief Terminates device scanner thread
*/
virtual void Terminate();
/**
* @brief Request device search
*
* @return Error information about reason of Scan failure.
*/
virtual TransportAdapter::Error Scan();
/**
* @brief Check device scanner for initialization.
*
* @return true - initialized.
* false - not initialized.
*/
virtual bool IsInitialised() const;
private:
class BluetoothDeviceScannerDelegate: public threads::ThreadDelegate {
public:
explicit BluetoothDeviceScannerDelegate(BluetoothDeviceScanner* scanner);
void threadMain() OVERRIDE;
private:
BluetoothDeviceScanner* scanner_;
};
typedef std::vector<uint8_t> RfcommChannelVector;
/**
* @brief Waits for external scan request or time out for repeated search or terminate request
*/
void TimedWaitForDeviceScanRequest();
/**
* @brief Finds RFCOMM-channels of SDL enabled applications for set of devices
* @param device_addresses Bluetooth addresses to search on
* @return List of RFCOMM-channels lists
*/
std::vector<RfcommChannelVector> DiscoverSmartDeviceLinkRFCOMMChannels(
const std::vector<bdaddr_t>& device_addresses);
/**
* @brief Finds RFCOMM-channels of SDL enabled applications for given device
* @param[out] discovered List of RFCOMM-channels to fill
* @return true - if search was OK, false if it failed
*/
bool DiscoverSmartDeviceLinkRFCOMMChannels(const bdaddr_t& device_address,
RfcommChannelVector* discovered);
/**
* @brief Summarizes the total list of devices (paired and scanned) and notifies controller
*/
void UpdateTotalDeviceList();
/**
* @brief Performs search of SDL-enabled devices
*/
void DoInquiry();
/**
* @brief Checks if given devices have SDL service and creates appropriate BluetoothDevice objects
* @param bd_address List of bluetooth addresses to check
* @param device_handle HCI handle
* @param[out] discovered_devices List of created BluetoothDevice objects to fill
*/
void CheckSDLServiceOnDevices(const std::vector<bdaddr_t>& bd_address,
int device_handle,
DeviceVector* discovered_devices);
TransportAdapterController* controller_;
threads::Thread* thread_;
bool shutdown_requested_;
bool ready_;
bool device_scan_requested_;
sync_primitives::Lock device_scan_requested_lock_;
sync_primitives::ConditionalVariable device_scan_requested_cv_;
std::vector<bdaddr_t> paired_devices_;
DeviceVector paired_devices_with_sdl_;
DeviceVector found_devices_with_sdl_;
/**
* @brief UUID of SmartDeviceLink service.
**/
uuid_t smart_device_link_service_uuid_;
const bool auto_repeat_search_;
const int auto_repeat_pause_sec_;
};
} // namespace transport_adapter
} // namespace transport_manager
#endif /* BLUETOOTH_DEVICE_SCANNER_H_ */
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