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!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
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM-PS (6147)
|  Modul   :  CC_TIME
+----------------------------------------------------------------------------- 
|  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 timer handling functions
|             for the component CC of the mobile station
+----------------------------------------------------------------------------- 
*/ 

#ifndef CC_TIM_C
#define CC_TIM_C

#define ENTITY_CC
/*==== INCLUDES ===================================================*/

#include <string.h>
#include "typedefs.h"
#include "pcm.h"
#include "vsi.h"
#include "custom.h"
#include "gsm.h"
#include "message.h"
#include "ccdapi.h"
#include "prim.h"
#include "cnf_cc.h"
#include "mon_cc.h"
#include "pei.h"
#include "tok.h"
#include "cc.h"
#include "cc_em.h"

/*==== EXPORT =====================================================*/
/*==== PRIVAT =====================================================*/
/*==== PROTOTYPES =====================================================*/
/* Implements Measure#  30, 31 */
LOCAL void tim_mncc_rel_ind (void);
/*==== VARIABLES ==================================================*/

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

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)         MODULE  : CC_TIM                   |
| STATE   : code                  ROUTINE : tim_exec_timeout         |
+--------------------------------------------------------------------+

  PURPOSE : execute timeout

*/

GLOBAL void tim_exec_timeout (USHORT index)
{
  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_exec_timeout()");

  /*
   * Processing of Timeout Function
   */
  if (index < MAX_CC_CALLS)
  {
    /* 
     * Not DTMF (T336, T337), any other CC timer 
     */
    cc_data->ti        = cc_data->stored_ti_values[index];
    cc_data->index_ti  = (UBYTE)index;
    
    switch (cc_data->state[cc_data->index_ti])
    {
      case M_CC_CS_01:
        tim_t303_u0_1 ();
        break;
      case M_CC_CS_03:
        tim_t332_u0_3 ();
        break;
      case M_CC_CS_05:
        tim_t335_u0_5 ();
        break;
      case M_CC_CS_1:
        tim_t303_u1 ();
        break;
      case M_CC_CS_3:
        tim_t310_u3 ();
        break;
      case M_CC_CS_8:
        tim_t313_u8 ();
        break;
      case M_CC_CS_11:
        tim_t305_u11 ();
        break;
      case M_CC_CS_19:
        tim_t308_u19 ();
        break;
      case M_CC_CS_26:
        tim_t323_u26 ();
        break;
    }
  }
  else
  {
    /* 
     * DTMF timer, either T336 or T337
     */
    T_DTMF * p_dtmf;

    cc_data->index_ti  = (UBYTE)(index - MAX_CC_CALLS);
    cc_data->ti        = cc_data->stored_ti_values[cc_data->index_ti];
    p_dtmf = &cc_data->dtmf[cc_data->index_ti];

    switch (p_dtmf->state)
    {
      case DTMF_SEND_REQUEST:
        tim_t336 ();
        break;
      case DTMF_STOP_REQUEST:
        tim_t337 ();
        break;
      default: /* Not expected */
        break;
    }
  }
}
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t303_u0_1              |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T303 in state U0.1

*/

GLOBAL void tim_t303_u0_1 ()
{
  PALLOC (rej_ind, MNCC_REJECT_IND);

  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_t303_u0_1()");
 
  EM_CC_TIMEOUT_T303;        

  rej_ind->ti  = cc_data->ti;
  rej_ind->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_TIMER);
  PSENDX (MMI, rej_ind);
  for_rel_req ();
  cc_set_state (M_CC_CS_0);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t303_u1                |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T303 in state U1

*/

GLOBAL void tim_t303_u1 ()
{
  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_t303_u1()");

  EM_CC_TIMEOUT_T303;  

  cc_data->timer [cc_data->index_ti] = T303;
  cc_disconnect_after_timeout ();
  cc_set_state (M_CC_CS_11);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t305_u11               |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T305 in state U11

*/

GLOBAL void tim_t305_u11 ()
{
  PALLOC (disc_ind, MNCC_DISCONNECT_IND);

  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_t305_u11()");

  cc_data->timer [cc_data->index_ti] = T305;
  CCD_START;
  {
    MCAST (release, U_RELEASE);

    cc_build_release (release, 
                      cc_data->cc_cause[cc_data->index_ti], 
                      NULL, MNCC_SS_VER_NOT_PRES);
    for_release (release);
  }
  CCD_END;

  disc_ind->ti    = cc_data->ti;
  disc_ind->cause = cc_data->cc_cause [cc_data->index_ti];
  /* Setting raw_cause to empty as this is a local release
   * of MM connection,CC is not receiving any cause value
   * from Network
   */
  disc_ind->c_raw_cause = 0;
  disc_ind->diagnostic = NOT_PRESENT_8BIT;
  disc_ind->progress_desc = MNCC_PROG_NOT_PRES;
  PSENDX (MMI, disc_ind);

  TIMERSTART (T308, T308_VALUE);
  cc_set_state (M_CC_CS_19);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t308_u19               |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T308 in state U19

*/

GLOBAL void tim_t308_u19 ()
{
  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_t308_u19()");

  cc_data->timer [cc_data->index_ti] = T308;

  if (cc_data->t308_counter [cc_data->index_ti] EQ 0)
  {
    CCD_START;
    {
      MCAST (release, U_RELEASE);

      cc_data->t308_counter[cc_data->index_ti]++;
      cc_build_release (release,
                        cc_data->cc_cause [cc_data->index_ti], 
                        NULL, MNCC_SS_VER_NOT_PRES);
      for_release (release);
    }
    CCD_END;
    TIMERSTART (T308, T308_VALUE);
  }
  else
  {
    cc_reset_dtmf ();

    {
      PALLOC (rel_cnf, MNCC_RELEASE_CNF);
      rel_cnf->ti    = cc_data->ti;
      rel_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_TIMER);
      rel_cnf->c_raw_cause = 0;
      PSENDX (MMI, rel_cnf);
    }
    
    for_rel_req ();
    cc_set_state (M_CC_CS_0);
  }
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t310_u3                |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T310 in state U3

*/

GLOBAL void tim_t310_u3 ()
{
  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_t310_u3()");

  cc_data->timer [cc_data->index_ti] = T310;
  cc_disconnect_after_timeout ();
  cc_set_state (M_CC_CS_11);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t313_u8                |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T313 in state U8

*/

GLOBAL void tim_t313_u8 ()
{
  GET_INSTANCE_DATA;

  PALLOC (setup_comp, MNCC_SETUP_COMPL_IND);

  TRACE_FUNCTION ("tim_t313_u8()");


  EM_CC_DISCONNECT_SENT;   

  cc_data->timer [cc_data->index_ti] = T313;
  CCD_START;
  {
    MCAST (disconnect, U_DISCONNECT);

    cc_build_disconnect (disconnect, 
                         CAUSE_MAKE(DEFBY_STD, 
                                    ORIGSIDE_MS, 
                                    MNCC_CC_ORIGINATING_ENTITY,
                                    M_CC_CAUSE_TIMER), 
                                    NULL, MNCC_SS_VER_NOT_PRES);
    for_disconnect (disconnect);
  }
  CCD_END;

  setup_comp->ti  = cc_data->ti;
  setup_comp->cause = CAUSE_MAKE(DEFBY_STD, 
                                 ORIGSIDE_MS, 
                                 MNCC_CC_ORIGINATING_ENTITY,
                                 M_CC_CAUSE_TIMER);
  PSENDX (MMI, setup_comp);
  TIMERSTART (T305, T305_VALUE);
  cc_set_state (M_CC_CS_11);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t323_u26               |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T323 in state U26

*/

GLOBAL void tim_t323_u26 ()
{
  GET_INSTANCE_DATA;

  PALLOC (modify_cnf, MNCC_MODIFY_CNF);

  TRACE_FUNCTION ("tim_t323_u26()");

  

  cc_data->timer [cc_data->index_ti] = T323;

  CCD_START;
  {
    MCAST (disconnect, U_DISCONNECT);

    cc_build_disconnect (disconnect,
                         CAUSE_MAKE(DEFBY_STD, 
                                    ORIGSIDE_MS, 
                                    MNCC_CC_ORIGINATING_ENTITY,
                                    M_CC_CAUSE_TIMER),
                                    NULL, MNCC_SS_VER_NOT_PRES);
    for_disconnect (disconnect);
  }
  CCD_END;

  modify_cnf->ti = cc_data->ti;
  modify_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_TIMER);
  /* Setting raw_cause to empty as we are not sending any cause from network*/ 
  modify_cnf->c_raw_cause = 0;

  PSENDX (MMI, modify_cnf);

  TIMERSTART (T305, T305_VALUE);
  cc_set_state (M_CC_CS_11);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t332_u0_3              |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T332 in state U0.3

*/

GLOBAL void tim_t332_u0_3 ()
{
  GET_INSTANCE_DATA;
  
  TRACE_FUNCTION ("tim_t332_u0_3()");


  cc_data->timer [cc_data->index_ti] = T332;

  /* Inform MMI */
  /* Implements Measure#  30, 31 */
  tim_mncc_rel_ind ();

  /* Send RELEASE COMPLETE to network */
  CCD_START;
  {
    MCAST (rel_com, U_RELEASE_COMP);
    cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_STD, 
                                                   ORIGSIDE_MS, 
                                                   MNCC_CC_ORIGINATING_ENTITY,
                                                   M_CC_CAUSE_TIMER));
    for_release_complete (rel_com);
  }
  CCD_END;

  /* Release MM connection */
  for_rel_req ();

  /* Next state is NULL */
  cc_set_state (M_CC_CS_0);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t335_u0_5              |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T335 in state U0.5

*/

GLOBAL void tim_t335_u0_5 ()
{
  GET_INSTANCE_DATA;
  TRACE_FUNCTION ("tim_t335_u0_5()");

  cc_data->timer [cc_data->index_ti] = T335;

  /* Forget stored setup container */
  PFREE (cc_data->stored_ccbs_setup);
  cc_data->stored_ccbs_setup = NULL;
  
  /* Inform MMI */
  /* Implements Measure#  30, 31 */
  tim_mncc_rel_ind ();

  /* Send RELEASE COMPLETE to network */
  CCD_START;
  {
    MCAST (rel_com, U_RELEASE_COMP);
    cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_STD, 
                                                   ORIGSIDE_MS, 
                                                   MNCC_CC_ORIGINATING_ENTITY,
                                                   M_CC_CAUSE_TIMER));
    for_release_complete (rel_com);
  }
  CCD_END;

  /* Release MM connection */
  for_rel_req ();

  /* Next state is NULL */
  cc_set_state (M_CC_CS_0);
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t336                   |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T336

*/

GLOBAL void tim_t336 ()
{
  GET_INSTANCE_DATA;
  
  T_DTMF * p_dtmf;

  TRACE_FUNCTION ("tim_t336()");

  cc_data->timer [cc_data->index_ti] = T336;
  p_dtmf = &cc_data->dtmf[cc_data->index_ti];

  /* 
   * Send error indication to MMI. DTMF transmission maybe has failed.
   * This point may be discussed, but TS 24.008 doesn't say that a
   * positive indication as a feedback for a successful transmission
   * should be generated.
   */
  {
    PALLOC (dtmf_cnf, MNCC_START_DTMF_CNF);
    dtmf_cnf->ti       = cc_data->ti;
    dtmf_cnf->key      = p_dtmf->key;
    dtmf_cnf->cause    = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_TIMER);
    dtmf_cnf->dtmf_mod = p_dtmf->mode;
    PSENDX (MMI, dtmf_cnf);
  }

  cc_stop_dtmf ();
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_t337                   |
+--------------------------------------------------------------------+

  PURPOSE : Timeout of timer T337

*/

GLOBAL void tim_t337 ()
{
  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_t337()");
  
  cc_data->timer [cc_data->index_ti] = T337;

  cc_stop_dtmf ();
}



/* Implements Measure#  30, 31 */
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-PS (6147)       MODULE  : CC_TIM                     |
| STATE   : code                ROUTINE : tim_mncc_rel_ind                   |
+--------------------------------------------------------------------+

  PURPOSE : Build and send MNCC_RELEASE_IND

*/

LOCAL void tim_mncc_rel_ind (void)
{ 
  GET_INSTANCE_DATA;

  TRACE_FUNCTION ("tim_mncc_rel_ind");
  { 
    PALLOC (release, MNCC_RELEASE_IND); 
    release->ti    = cc_data->ti;
    release->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_TIMER);
    release->c_raw_cause = 0;
    PSENDX (MMI, release);
  }
}

#endif /* #ifndef CC_TIM_C */