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view src/g23m-aci/uart/uart_drxf.c @ 275:79cfefc1e2b4

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audio mode load: gracefully handle mode files of wrong AEC version Unfortunately our change of enabling L1_NEW_AEC (which is necessary in order to bring our Calypso ARM fw into match with the underlying DSP reality) brings along a change in the audio mode file binary format and file size - all those new tunable AEC parameters do need to be stored somewhere, after all. But we already have existing mode files in the old format, and setting AEC config to garbage when loading old audio modes (which is what would happen without the present change) is not an appealing proposition. The solution implemented in the present change is as follows: the audio mode loading code checks the file size, and if it differs from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure is cleared - set to the default (disabled AEC) for the compiled type of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure sits at the end of T_AUDIO_MODE!
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 30 Jul 2021 02:55:48 +0000
parents fa8dc04885d8
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  This modul is part of the entity UART and implements all 
|             procedures and functions as described in the 
|             SDL-documentation (DRX-statemachine)
+----------------------------------------------------------------------------- 
*/ 

#ifndef UART_DRXF_C
#define UART_DRXF_C
#endif /* !UART_DRXF_C */

#define ENTITY_UART

/*==== INCLUDES =============================================================*/

#ifdef WIN32
#include "nucleus.h"
#endif /* WIN32 */
#include "typedefs.h"   /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */
#include "macdef.h"     /* to get a lot of macros */
#include "custom.h"
#include "gsm.h"        /* to get a lot of macros */
#include "cnf_uart.h"   /* to get cnf-definitions */
#include "mon_uart.h"   /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "dti.h"        /* to get dti lib */
#include "pei.h"        /* to get PEI interface */
#ifdef FF_MULTI_PORT
#include "gsi.h"        /* to get definitions of serial driver */
#else /* FF_MULTI_PORT */
#ifdef _TARGET_
#include "uart/serialswitch.h"
#include "uart/traceswitch.h"
#else /* _TARGET_ */
#include "serial_dat.h" /* to get definitions of serial driver */
#endif /* _TARGET_ */
#endif /* FF_MULTI_PORT */
#include "uart.h"       /* to get the global entity definitions */

/*==== CONST ================================================================*/

/*==== LOCAL VARS ===========================================================*/

/*==== PRIVATE FUNCTIONS ====================================================*/

/*==== PUBLIC FUNCTIONS =====================================================*/



/*
+------------------------------------------------------------------------------
     Function    : drx_init
+------------------------------------------------------------------------------
     Description : The function drx_init() initializes the service DRX
    
     Parameters  : none
    
+------------------------------------------------------------------------------
*/
GLOBAL void drx_init ()
{ 
  UBYTE i;

  TRACE_FUNCTION( "drx_init" );

  for( i = 0; i < UART_MAX_NUMBER_OF_CHANNELS; i++ )
  {
    /*
     * select next instance of service DRX
     */
    uart_data->drx = &uart_data->drx_base[i];

    /*
     * initialize service instance specific variables
     */
    uart_data->drx->sending_state    = UART_DRX_NOT_SENDING;
    uart_data->drx->data_flow        = UART_FLOW_ENABLED;

    uart_data->drx->dlc_instance     = i;

    uart_data->drx->received_data    = NULL;
    uart_data->drx->read_pos         = 0;

    uart_data->drx->dti_drx_state = DTI_CLOSED;

    INIT_STATE( UART_SERVICE_DRX , DRX_DEAD );
  }
} /* drx_init() */



/*
+------------------------------------------------------------------------------
     Function    : drx_free_resources
+------------------------------------------------------------------------------
     Description : The function drx_free_resources() frees all resources of the 
                   service DRX
    
     Parameters  : none
    
+------------------------------------------------------------------------------
*/
GLOBAL void drx_free_resources ()
{
  TRACE_FUNCTION( "drx_free_resources" );

  if(uart_data->drx->received_data)
  {
    MFREE_DESC2( uart_data->drx->received_data );
  }
  uart_data->drx->received_data = NULL;
  uart_data->drx->read_pos = 0;
} /* drx_free_resources() */