view src/g23m-aci/aci/cmh_gmmq.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 :  
|  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 module provides the query functions related to the
|             protocol stack adapter for GPRS mobility management ( GMM ).
+----------------------------------------------------------------------------- 
*/ 

#if defined (GPRS) && defined (DTI)

#ifndef CMH_GMMQ_C
#define CMH_GMMQ_C
#endif

#include "aci_all.h"

/*==== INCLUDES ===================================================*/
#include "dti.h"      /* functionality of the dti library */
#include "aci_cmh.h"
#include "ati_cmd.h"
#include "aci_cmd.h"

#include "dti_conn_mng.h"

#include "pcm.h"

#include "gaci.h"
#include "gaci_cmh.h"
#include "psa.h"
#include "psa_gmm.h"

#include "cmh.h"
#include "cmh_gmm.h"

/*==== CONSTANTS ==================================================*/

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

/*==== VARIABLES ==================================================*/

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

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_GMMQ                 |
| STATE   : finished              ROUTINE : qAT_PlusCGATT            |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGATT? AT
            command which returns the current state of GPRS attachment.
*/

GLOBAL T_ACI_RETURN qAT_PlusCGATT  ( T_ACI_CMD_SRC srcId, T_CGATT_STATE *state )
{
  TRACE_FUNCTION ("qAT_PlusCGATT()");

  if ( !cmh_IsVldCmdSrc (srcId) )
  {
    ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
    return( AT_FAIL );
  }

  switch ( cmhGMM_Get_state() )
  {
    case AS_ATTACHED:
    case AS_SUSPENTED:
      *state = CGATT_STATE_ATTACHED;
      break;
    case AS_INVALID_STATE:
    case AS_MOBILE_OFF:
    case AS_DETACHED:
    case AS_ATTACHING:
    case AS_DETACHING:
    default:
      *state = CGATT_STATE_DETACHED;
      break;
   }

   return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_GMMQ                 |
| STATE   : code                  ROUTINE : qAT_PlusCGCLASS          |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the +CGCLASS? AT
            command which returns current GACI mobile class.
*/

GLOBAL T_ACI_RETURN qAT_PlusCGCLASS  ( T_ACI_CMD_SRC srcId, T_CGCLASS_CLASS *m_class )
{
   TRACE_FUNCTION ("qAT_PlusCGCLASS()");

/*
 *-------------------------------------------------------------------
 * check command source - should be Serial link ?
 *-------------------------------------------------------------------
 */
   if ( !cmh_IsVldCmdSrc (srcId) ) {
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return( AT_FAIL );
   }

/*
 *-------------------------------------------------------------------
 * fill in parameters
 *-------------------------------------------------------------------
 */
  switch ( gmmShrdPrm.mobile_class )
  {
    case GMMREG_CLASS_A:
      *m_class = CGCLASS_CLASS_A;     /* mobile class A  (highest) */
      break;
    case GMMREG_CLASS_B:
    case GMMREG_CLASS_BC:
    case GMMREG_CLASS_BG:
      *m_class = CGCLASS_CLASS_B;     /* mobile class B */
      break;
    case GMMREG_CLASS_CG:
      *m_class = CGCLASS_CLASS_CG;    /* mobile class CG (GPRS only mode) */
      break;
    case GMMREG_CLASS_CC:
      *m_class = CGCLASS_CLASS_CC;    /* mobile class CC (circuit switched only mode - lowest) */
      break;
    default: /*bad user command */
      ACI_ERR_DESC( ACI_ERR_CLASS_Ext, EXT_ERR_Parameter );
      return AT_FAIL;
  }

  return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_GMMQ                 |
| STATE   : finished              ROUTINE : qAT_PercentCGAATT        |
+--------------------------------------------------------------------+

  PURPOSE : This command get the mode of automatic attach / detach.
*/

GLOBAL T_ACI_RETURN qAT_PercentCGAATT  ( T_ACI_CMD_SRC srcId, T_CGAATT_ATTACH_MODE *att_m, T_CGAATT_DETACH_MODE *det_m )

{
  TRACE_FUNCTION ("qAT_PercentCGAATT()");  

  *att_m = automatic_attach_mode;
  *det_m = automatic_detach_mode;

  return( AT_CMPL );   
}

GLOBAL T_ACI_RETURN qAT_PlusCGREG( T_ACI_CMD_SRC srcId, T_CGREG_STAT *stat, USHORT *lac, USHORT *ci )
{
  TRACE_FUNCTION ("qAT_PlusCGREG()");

  *stat = gmmShrdPrm.cgreg_stat;
  *lac  = gmmShrdPrm.lac;
  *ci   = gmmShrdPrm.cid;

  return( AT_CMPL );
}

GLOBAL T_ACI_RETURN qAT_PercentCGREG   ( T_ACI_CMD_SRC srcId, T_P_CGREG_STAT *stat, USHORT *lac, USHORT *ci )
{
  TRACE_FUNCTION ("qAT_PercentCGREG()");

  *stat = gmmShrdPrm.p_cgreg_stat;
  *lac  = gmmShrdPrm.lac;
  *ci   = gmmShrdPrm.cid;

  return( AT_CMPL );
}

/*
+--------------------------------------------------------------------+
| PROJECT : GPRS (8441)           MODULE  : CMH_GMMQ                 |
| STATE   : code                  ROUTINE : qAT_PercentCGCLASS       |
+--------------------------------------------------------------------+

  PURPOSE : This is the functional counterpart to the %CGCLASS? AT
            command which returns current GPRS mobile class.
*/
GLOBAL T_ACI_RETURN qAT_PercentCGCLASS  ( T_ACI_CMD_SRC srcId, T_PERCENT_CGCLASS *m_class, T_PERCENT_CGCLASS *currentClass )
{
   TRACE_FUNCTION ("qAT_PercentCGCLASS()");

  *m_class = *currentClass = gaciMobileClass.current;
  if( PERCENT_CGCLASS_BX EQ gaciMobileClass.current)
  {
    switch ( gmmShrdPrm.mobile_class )
    {
      case GMMREG_CLASS_BC:
        *currentClass = PERCENT_CGCLASS_BC;
        break;
      case GMMREG_CLASS_BG:
        *currentClass = PERCENT_CGCLASS_BG;
        break;
    }
  }

  return( AT_CMPL );
}
#endif  /* GPRS */
/*==== EOF ========================================================*/