view src/g23m-fad/t30/t30_muxp.c @ 303:f76436d19a7a default tip

!GPRS config: fix long-standing AT+COPS chance hanging bug There has been a long-standing bug in FreeCalypso going back years: sometimes in the AT command bring-up sequence of an ACI-only MS, the AT+COPS command would produce only a power scan followed by cessation of protocol stack activity (only L1 ADC traces), instead of the expected network search sequence. This behaviour was seen in different FC firmware versions going back to Citrine, and seemed to follow some law of chance, not reliably repeatable. This bug has been tracked down and found to be specific to !GPRS configuration, stemming from our TCS2/TCS3 hybrid and reconstruction of !GPRS support that was bitrotten in TCS3.2/LoCosto version. ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3 version and had to be pulled from TCS2 - but as it turns out, there is a new field in the MMR_REG_REQ primitive that needs to be set correctly, and that psa_mms.c module is the place where this initialization needed to be added.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 08 Jun 2023 08:23:37 +0000
parents fa8dc04885d8
children
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/* 
+----------------------------------------------------------------------------- 
|  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);
}