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      1 /*
      2  * Copyright (c) 2015, Intel Corporation
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without modification,
      6  * are permitted provided that the following conditions are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright notice, this
      9  * list of conditions and the following disclaimer.
     10  *
     11  * 2. Redistributions in binary form must reproduce the above copyright notice,
     12  * this list of conditions and the following disclaimer in the documentation and/or
     13  * other materials provided with the distribution.
     14  *
     15  * 3. Neither the name of the copyright holder nor the names of its contributors
     16  * may be used to endorse or promote products derived from this software without
     17  * specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
     23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "IntrospectionSubsystemObject.h"
     32 #include <InstanceConfigurableElement.h>
     33 #include <ParameterType.h>
     34 
     35 namespace parameterFramework
     36 {
     37 namespace introspectionSubsystem
     38 {
     39 
     40 const SubsystemObject *SubsystemObject::mSingletonInstance = nullptr;
     41 
     42 /* Helper function */
     43 const CParameterType *geParameterType(CInstanceConfigurableElement *element)
     44 {
     45     return static_cast<const CParameterType *>(element->getTypeElement());
     46 }
     47 
     48 SubsystemObject::SubsystemObject(const std::string & /*mappingValue*/,
     49                                  CInstanceConfigurableElement *instanceConfigurableElement,
     50                                  const CMappingContext & /*context*/, core::log::Logger &logger)
     51     : base(instanceConfigurableElement, logger), mParameter(false)
     52 {
     53     /* Checking that structure matches the internal parameter */
     54     ALWAYS_ASSERT(geParameterType(instanceConfigurableElement)->getSize() == parameterSize,
     55                   "Wrong parameter size");
     56     ALWAYS_ASSERT((instanceConfigurableElement->getFootPrint() / parameterSize) == 1,
     57                   "Parameter shall not be an array");
     58     ALWAYS_ASSERT(geParameterType(instanceConfigurableElement)->isScalar(),
     59                   "Parameter shall be scalar");
     60 
     61     /* Registering the instance into a singleton */
     62     registerInstance(*this);
     63 }
     64 
     65 SubsystemObject::~SubsystemObject()
     66 {
     67     /* Unregistering the instance from the singleton */
     68     unregisterInstance(*this);
     69 }
     70 
     71 bool SubsystemObject::sendToHW(std::string & /*error*/)
     72 {
     73     blackboardRead(&mParameter, parameterSize);
     74     return true;
     75 }
     76 
     77 bool SubsystemObject::receiveFromHW(std::string & /*error*/)
     78 {
     79     blackboardRead(&mParameter, parameterSize);
     80     return true;
     81 }
     82 }
     83 }
     84