1 /*

     2 * Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Statemachine for updating rxtx parameters

    15 *

    16 */

    17 

    18 

    19 #include "core_operation_update_rxtx_parameters.h"

    20 #include "core_operation_update_tx_rate_policies.h"

    21 #include "core_server.h"

    22 #include "am_debug.h"

    23 

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

    25 

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

    27 const u32_t CORE_BEACON_LOST_COUNT_NO_BT = 15;

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

    29 const u32_t CORE_BEACON_LOST_COUNT_BT = 20;

    30 /**

    31  * Number of consecutive packets that have to be lost before

    32  * core_am_indication_wlan_tx_fail is indicated.

    33  */

    34 const u32_t CORE_FAILED_TX_PACKETS_COUNT = 4;

    35 

    36 // ---------------------------------------------------------------------------

    37 // ---------------------------------------------------------------------------

    38 //

    39 core_operation_update_rxtx_parameters_c::core_operation_update_rxtx_parameters_c(

    40     u32_t request_id,

    41     core_server_c* server,

    42     abs_core_driverif_c* drivers,

    43     abs_core_server_callback_c* adaptation ) :

    44     core_operation_base_c( core_operation_update_rxtx_parameters, request_id, server, drivers, adaptation,

    45         core_base_flag_only_one_instance )

    46     {

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

    48     }

    49 

    50 // ---------------------------------------------------------------------------

    51 // ---------------------------------------------------------------------------

    52 //

    53 core_operation_update_rxtx_parameters_c::~core_operation_update_rxtx_parameters_c()

    54     {

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

    56     }

    57     

    58 // ---------------------------------------------------------------------------

    59 // ---------------------------------------------------------------------------

    60 //

    61 core_error_e core_operation_update_rxtx_parameters_c::next_state()

    62     {

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

    64     

    65     switch ( operation_state_m )

    66         {

    67         case core_state_init:

    68             {                        

    69             operation_state_m = core_state_req_set_bss_lost_parameters;

    70 

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

    72                 {

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

    74                 return core_error_ok;

    75                 }

    76 

    77             core_bss_lost_parameters_s parameters =

    78                 { CORE_BEACON_LOST_COUNT_NO_BT, CORE_FAILED_TX_PACKETS_COUNT };

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

    80                 {

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

    82                 parameters.beacon_lost_count = CORE_BEACON_LOST_COUNT_BT; 

    83                 }

    84 

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

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

    87                 parameters.beacon_lost_count );

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

    89                 parameters.failed_tx_packet_count );

    90 

    91             drivers_m->set_bss_lost_parameters(

    92                 request_id_m,

    93                 parameters );

    94 

    95             break;

    96             }

    97         case core_state_req_set_bss_lost_parameters:

    98             {

    99             operation_state_m = core_state_req_set_tx_rate_policies;

   100 

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

   102                  server_m->get_connection_data() &&

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

   104                 {

   105                 core_operation_base_c* operation = new core_operation_update_tx_rate_policies_c(

   106                     request_id_m,

   107                     server_m,

   108                     drivers_m,

   109                     adaptation_m,

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

   111 

   112                 return run_sub_operation( operation );

   113                 }

   114 

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

   116 

   117             return goto_state( core_state_req_set_tx_rate_policies );

   118             }

   119         case core_state_req_set_tx_rate_policies:

   120             {

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

   122 

   123             return core_error_ok;

   124             }

   125         default:

   126             {

   127             ASSERT( false_t );

   128             }

   129         }

   130 

   131     return core_error_request_pending;

   132     }