/*

* Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Statemachine for unloading drivers

*

*/

/*

* %version: 11 %

*/

#include "core_operation_unload_drivers.h"

#include "core_operation_release.h"

#include "core_server.h"

#include "am_debug.h"

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

core_operation_unload_drivers_c::core_operation_unload_drivers_c(

    u32_t request_id,

    core_server_c* server,

    abs_core_driverif_c* drivers,

    abs_core_server_callback_c* adaptation ) :

    core_operation_base_c( core_operation_unload_drivers, request_id, server, drivers, adaptation,

        core_base_flag_only_one_instance )   

    {

    DEBUG( "core_operation_unload_drivers_c::core_operation_unload_drivers_c()" );

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

core_operation_unload_drivers_c::~core_operation_unload_drivers_c()

    {

    DEBUG( "core_operation_unload_drivers_c::~core_operation_unload_drivers_c()" );

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

core_error_e core_operation_unload_drivers_c::next_state()

    {

    DEBUG( "core_operation_unload_drivers_c::next_state()" );

    switch( operation_state_m )

        {

        case core_state_init:

            {

            DEBUG( "- core_state_init" );

            if( server_m->get_core_settings().is_connected() )

                {

                DEBUG( "core_operation_unload_drivers_c::next_state() - still connected, notifying state change" );

                // connection is open, first send state change notification

                u8_t buf[5];

                buf[0] = static_cast<u8_t>( core_connection_state_notconnected );

                buf[1] = static_cast<u8_t>( core_release_reason_hw_failure );

                adaptation_m->notify( 

                    core_notification_connection_state_changed,

                    sizeof( buf ),

                    buf );

                server_m->get_connection_data()->set_last_connection_state(

                    core_connection_state_notconnected );

                // Delay unloading a little bit so that data pipe can be

                // disconnected from adaptation side

                return asynch_goto( core_state_notifying, DELAY_FOR_AGENT );

                }

            else

                {               

                // not connected, jump directly to unloading drivers

                return goto_state( core_state_releasing );

                }

            }

        case core_state_notifying:

            {

            DEBUG( "core_operation_connect_c::next_state() - notification sent, releasing" );

            core_operation_base_c* operation = new core_operation_release_c(

                request_id_m,

                server_m,

                drivers_m,

                adaptation_m,

                core_release_reason_hw_failure );

            operation_state_m = core_state_releasing;

            return run_sub_operation( operation );

            }

        case core_state_releasing:

            {

            DEBUG( "core_operation_unload_drivers_c::next_state() - unloading drivers" );

            drivers_m->unload_drivers( request_id_m );

            operation_state_m = core_state_unloading;

            break;

            }

        case core_state_unloading:

            {

            DEBUG( "core_operation_unload_drivers_c::next_state() - unloading done" );

            server_m->get_core_settings().set_driver_state( false_t );

            return core_error_ok;    

            } 

        default:

            {

            ASSERT( false_t );

            }

        }

    return core_error_request_pending;

    }