/*

* Copyright (c) 2005-2006 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 updating rxtx parameters

*

*/

#include "core_operation_update_rxtx_parameters.h"

#include "core_operation_update_tx_rate_policies.h"

#include "core_server.h"

#include "am_debug.h"

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

/** Beacon lost value to be used when BT connection is disabled. */

const u32_t CORE_BEACON_LOST_COUNT_NO_BT = 15;

/** Beacon lost value to be used when BT connection is active. */

const u32_t CORE_BEACON_LOST_COUNT_BT = 20;

/**

 * Number of consecutive packets that have to be lost before

 * core_am_indication_wlan_tx_fail is indicated.

 */

const u32_t CORE_FAILED_TX_PACKETS_COUNT = 4;

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

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

//

core_operation_update_rxtx_parameters_c::core_operation_update_rxtx_parameters_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_update_rxtx_parameters, request_id, server, drivers, adaptation,

        core_base_flag_only_one_instance )

    {

    DEBUG( "core_operation_update_rxtx_parameters_c::core_operation_update_rxtx_parameters_c()" );

    }

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

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

//

core_operation_update_rxtx_parameters_c::~core_operation_update_rxtx_parameters_c()

    {

    DEBUG( "core_operation_update_rxtx_parameters_c::~core_operation_update_rxtx_parameters_c()" );

    }

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

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

//

core_error_e core_operation_update_rxtx_parameters_c::next_state()

    {

    DEBUG( "core_operation_update_rxtx_parameters_c::next_state()" );

    switch ( operation_state_m )

        {

        case core_state_init:

            {                        

            operation_state_m = core_state_req_set_bss_lost_parameters;

            if( !server_m->get_core_settings().is_driver_loaded() )

                {

                DEBUG( "core_operation_update_rxtx_parameters_c::next_state() - driver not loaded, completing operation" );

                return core_error_ok;

                }

            core_bss_lost_parameters_s parameters =

                { CORE_BEACON_LOST_COUNT_NO_BT, CORE_FAILED_TX_PACKETS_COUNT };

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

                {

                DEBUG( "core_operation_update_rxtx_parameters_c::next_state() - BT connection on, adjusting beacon lost count" );

                parameters.beacon_lost_count = CORE_BEACON_LOST_COUNT_BT; 

                }

            DEBUG( "core_operation_update_rxtx_parameters_c::next_state() - setting bss lost parameters" );

            DEBUG1( "core_operation_update_rxtx_parameters_c::next_state() - beacon_lost_count = %u",

                parameters.beacon_lost_count );

            DEBUG1( "core_operation_update_rxtx_parameters_c::next_state() - failed_tx_packet_count = %u",

                parameters.failed_tx_packet_count );

            drivers_m->set_bss_lost_parameters(

                request_id_m,

                parameters );

            break;

            }

        case core_state_req_set_bss_lost_parameters:

            {

            operation_state_m = core_state_req_set_tx_rate_policies;

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

                 server_m->get_connection_data() &&

                 server_m->get_connection_data()->current_ap_data() )

                {

                core_operation_base_c* operation = new core_operation_update_tx_rate_policies_c(

                    request_id_m,

                    server_m,

                    drivers_m,

                    adaptation_m,

                    *server_m->get_connection_data()->current_ap_data() );

                return run_sub_operation( operation );

                }

            DEBUG( "core_operation_update_rxtx_parameters_c::next_state() - not connected, no need to set TX rate policies" );

            return goto_state( core_state_req_set_tx_rate_policies );

            }

        case core_state_req_set_tx_rate_policies:

            {

            DEBUG( "core_operation_update_rxtx_parameters_c::next_state() - all set" );

            return core_error_ok;

            }

        default:

            {

            ASSERT( false_t );

            }

        }

    return core_error_request_pending;

    }