view src/g23m-fad/ppp/ppp_prxf.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 modul is part of the entity PPP and implements all 
|             procedures and functions as described in the 
|             SDL-documentation (PRX-statemachine)
+----------------------------------------------------------------------------- 
*/ 

#define ENTITY_PPP

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

#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"     /* to get a lot of macros */
/*lint -efile(766,gsm.h) */
#include "gsm.h"        /* to get a lot of macros */
/*lint -efile(766,cnf_ppp.h) */
#include "cnf_ppp.h"    /* to get cnf-definitions */
/*lint -efile(766,mon_ppp.h) */
#include "mon_ppp.h"    /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "dti.h"        /* to get the DTILIB definitions */
#include "ppp.h"        /* to get the global entity definitions */

#ifdef FF_STATUS_TE
#include "gdi.h"        /* To include driver type-defines */
#include "ste.h"        /* To include function interface for TE status driver */
#include "ppp_prxf.h"   /* To include call-back function for TE status driver */
#endif /* FF_STATUS_TE */
/*==== CONST ================================================================*/

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

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

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



/*
+------------------------------------------------------------------------------
| Function    : prx_init
+------------------------------------------------------------------------------
| Description : The function prx_init() initializes Packet Receive (PRX)
|
| Parameters  : no parameters
|
+------------------------------------------------------------------------------
*/
GLOBAL void prx_init ()
{ 
  TRACE_FUNCTION( "prx_init" );
  
#if defined FF_STATUS_TE
  /*
   * Init of the TE status driver - the handle is unique inside PPP only, SMN
   * PPP handle-management are placed in the end of ppp.h 
   */
  if (DRV_OK NEQ STE_Init( STE_HANDLE, cb_status_TE ))
  {
    /*
     * Error during init of TE status driver - either it is already init or it has failed 
     */
    TRACE_ERROR( "STE driver init. error" );
  }
  else
  {

#ifdef _SIMULATION_
    TRACE_EVENT( "Return DRV_OK from STE_Init()" );
#endif /* _SIMULATION_ */

    /*
     * Setup of used signal-types for driver to trig a callback
     */
    if (DRV_OK NEQ STE_SetSignal( DRV_SIGTYPE_READ ))
    {
      /* 
       * Error during signal-set - either signal illegal, not available or internal fail 
       */
      TRACE_ERROR( "STE driver setup error" );
    }
#ifdef _SIMULATION_
    else
    {
      TRACE_EVENT( "Return DRV_OK from STE_SetSignal()" );
    }
#endif /* _SIMULATION_ */
  }
  /*
   * initialize variables
   */
  ppp_data->prx.TE_data_buffer_desc_list_first = NULL;
  ppp_data->prx.TE_data_buffer_p_id            = DTI_PID_UOS;
  ppp_data->prx.TE_data_buffered               = FALSE;
#endif /* FF_STATUS_TE */

   INIT_STATE( PPP_SERVICE_PRX , PRX_DEAD );
} /* prx_init() */



#ifdef FF_STATUS_TE
/*
+------------------------------------------------------------------------------
| Function    : cb_status_TE
+------------------------------------------------------------------------------
| Description : Handles the call-back from the TE status driver and sends the
|               NEW_POWER_STATUS signal to the PS
|
| Parameters  : None
|
+------------------------------------------------------------------------------
*/
GLOBAL void cb_status_TE (T_DRV_SIGNAL * signal)
{ 

  TRACE_FUNCTION( "cb_status_TE" );

  if((signal->SignalType EQ DRV_SIGTYPE_READ) &&
     (signal->DrvHandle  EQ STE_HANDLE) &&
     (*((USHORT*)signal->UserData)  EQ STE_IDENTIFIER_POWER))
  {
    PSIGNAL(hCommPPP, NEW_POWER_STATUS, NULL);
  }
  else
  {
    TRACE_ERROR( "STE driver: Signal not supported" );
  }
} /* cb_status_TE() */
#endif /* FF_STATUS_TE */