view src/g23m-fad/t30/t30_muxp.c @ 275:79cfefc1e2b4

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
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM-F&D (8411)
|  Modul   :  t30_muxp
+----------------------------------------------------------------------------- 
|  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 defines the functions for processing
|             of incomming primitives for the component T30
|             of the mobile station
+----------------------------------------------------------------------------- 
*/ 

#ifndef T30_MUXP_C
#define T30_MUXP_C
#endif

#define ENTITY_T30

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

#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include "typedefs.h"
#include "pcm.h"
#include "vsi.h"
#include "macdef.h"
#include "pconst.cdg"
#include "mconst.cdg"
#include "message.h"
#include "ccdapi.h"
#include "custom.h"
#include "gsm.h"
#include "prim.h"
#include "cnf_t30.h"
#include "mon_t30.h"
#include "pei.h"
#include "tok.h"
#include "dti.h"      /* functionality of the dti library */
#include "t30.h"

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

/*==== TYPES =======================================================*/

/*==== VAR EXPORT ==================================================*/

/*==== VAR LOCAL ===================================================*/

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

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)             MODULE  : T30_MUXP            |
| STATE   : code                       ROUTINE : mux_fad_mux_ind     |
+--------------------------------------------------------------------+

  PURPOSE : Process primitive FAD_MUX_IND received from FAD.
            This primitive switches the state of the multiplexer.
*/

GLOBAL void mux_fad_mux_ind (T_FAD_MUX_IND *fad_mux_ind)
{
  TRACE_FUNCTION ("mux_fad_mux_ind");
  PACCESS        (fad_mux_ind);

  switch (GET_STATE (MUX))
  {
  case T30_MUX_BCS:
  case T30_MUX_MSG:
    switch (fad_mux_ind->mode)
    {
    case MUX_BCS:
      {
      T_TIME v;
      SET_STATE (MUX, T30_MUX_BCS);

      /* restart timer t4 */
      /* MG: I think the timer should only be restarted, when it is running already: */

      TIMERSTATUS(T4_INDEX, &v);
      if (v)
      {
        TIMERSTART (T4_INDEX, T4_VALUE);
      }
      if (t30_data->preamble_ind)
      {
        PALLOC (t30_preamble_ind, T30_PREAMBLE_IND);
        t30_data->preamble_ind = FALSE;
        PSENDX (MMI, t30_preamble_ind);
      }
      }
      break;

    case MUX_MSG:
      SET_STATE (MUX, T30_MUX_MSG);
      break;
    }
    break;

  default:
#ifdef _SIMULATION_ /* test BCS formatter only */
    if (t30_data->test_mode & TST_BCS)
    {
      switch (fad_mux_ind->mode)
      {
        case MUX_BCS: SET_STATE (MUX, T30_MUX_BCS); break;
      }
    }
#endif
    break;
  }
  PFREE (fad_mux_ind);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)             MODULE  : T30_MUXP            |
| STATE   : code                       ROUTINE : mux_fad_data_ind    |
+--------------------------------------------------------------------+

  PURPOSE : Process primitive FAD_DATA_IND received from FAD.
            Sends the received data to the message- or the bcs-
            formatter or to nirvana in dependence of the mux-state.
*/

GLOBAL void mux_fad_data_ind (T_FAD_DATA_IND *fad_data_ind)
{
  TRACE_FUNCTION ("mux_fad_data_ind()");
  PACCESS (fad_data_ind);

  switch (GET_STATE (MUX))
  {
  case T30_MUX_BCS:
#if defined _SIMULATION_ || defined KER_DEBUG_BCS
    ker_debug ("FAD_DATA_IND", fad_data_ind->sdu.buf, (USHORT)(fad_data_ind->sdu.l_buf >> 3));
#endif
    sig_mux_bcs_bcs_ind (fad_data_ind);
    break;
  
  case T30_MUX_MSG:
    sig_mux_msg_msg_ind (fad_data_ind);
    break;

  default:
    break;
  }

  PFREE (fad_data_ind);
}