view src/g23m-gprs/llc/llc_llmes.c @ 662:8cd8fd15a095

SIM speed enhancement re-enabled and made configurable TI's original code supported SIM speed enhancement, but Openmoko had it disabled, and OM's disabling of speed enhancement somehow caused certain SIM cards to start working which didn't work before (OM's bug #666). Because our FC community is much smaller in year 2020 than OM's community was in their day, we are not able to find one of those #666-affected SIMs, thus the real issue they had encountered remains elusive. Thus our solution is to re-enable SIM speed enhancement and simply wait for if and when someone runs into a #666-affected SIM once again. We provide a SIM_allow_speed_enhancement global variable that allows SIM speed enhancement to be enabled or disabled per session, and an /etc/SIM_spenh file in FFS that allows it to enabled or disabled on a non-volatile basis. SIM speed enhancement is now enabled by default.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 24 May 2020 05:02:28 +0000
parents 219afcfc6250
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 LLC and implements all
|             functions to handles the incoming process internal signals as
|             described in the SDL-documentation (LLME-statemachine)
+-----------------------------------------------------------------------------
*/

#ifndef LLC_LLMES_C
#define LLC_LLMES_C
#endif

#define ENTITY_LLC

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

#include "typedefs.h"   /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */
#include "macdef.h"
#include "gprs.h"
#include "gsm.h"        /* to get a lot of macros */
#include "cnf_llc.h"    /* to get cnf-definitions */
#include "mon_llc.h"    /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */

#include "llc.h"        /* to get the global entity definitions */
#include "llc_uitxs.h"  /* to get signal interface to UITX */
#include "llc_uirxs.h"  /* to get signal interface to UIRX */
#include "llc_itxs.h"   /* to get signal interface to ITX */
#include "llc_irxs.h"   /* to get signal interface to IRX */
#include "llc_txs.h"    /* to get signal interface to TX */
#include "llc_uf.h"     /* to get signal interface to U */
#include "llc_us.h"     /* to get signal interface to U */


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

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

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

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



/*
+------------------------------------------------------------------------------
| Function    : sig_u_llme_reset_ind
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_U_LLME_RESET_IND
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_u_llme_reset_ind (void)
{
  T_SAPI sapi;

  TRACE_ISIG( "sig_u_llme_reset_ind" );

  switch( GET_STATE( LLME ) )
  {
    case LLME_TLLI_ASSIGNED:
      /* No break. */
    case LLME_TLLI_ASSIGNED_SUSPENDED:
      /*
       * ATTENTION:
       * The following loop implies that all SAPIs are odd numbers beginning
       * with 1!
       */
      for (sapi = LL_SAPI_1; sapi <= LL_SAPI_11; sapi += 2)
      {
        SWITCH_LLC (sapi);

        sig_llme_uitx_reset_req();
        sig_llme_uirx_reset_req();

        if ((sapi NEQ LL_SAPI_1) AND (sapi NEQ LL_SAPI_7))
        {
          sig_llme_itx_reset_req();
          sig_llme_irx_reset_req();
        }

        sig_llme_tx_reset_req();
      }
      break;
    default:
      TRACE_ERROR( "SIG_U_LLME_RESET_IND unexpected" );
      break;
  }
} /* sig_u_llme_reset_ind() */

/*
+------------------------------------------------------------------------------
| Function    : sig_u_llme_ready_ind
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_U_LLME_READY_IND
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_u_llme_ready_ind (void)
{
  T_SAPI sapi;

  TRACE_ISIG( "sig_u_llme_ready_ind" );

  switch( GET_STATE( LLME ) )
  {
    case LLME_TLLI_ASSIGNED:
      /* No break. */
    case LLME_TLLI_ASSIGNED_SUSPENDED:
      /*
       * ATTENTION:
       * The following loop implies that all SAPIs are odd numbers beginning
       * with 1!
       */
      for (sapi = LL_SAPI_1; sapi <= LL_SAPI_11; sapi += 2)
      {
        SWITCH_LLC (sapi);

        sig_llme_tx_ready_req();
      }

      break;
    default:
      TRACE_ERROR( "SIG_U_LLME_READY_IND unexpected" );
      break;
  }
} /* sig_u_llme_ready_ind() */



/*
+------------------------------------------------------------------------------
| Function    : sig_itx_llme_reest_ind
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_ITX_LLME_REEST_IND
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
#ifdef CC_CONCEPT
GLOBAL void sig_itx_llme_reest_ind (USHORT error_cause)
#else
GLOBAL void sig_itx_llme_reest_ind (UBYTE error_cause)
#endif
{
  TRACE_ISIG( "sig_itx_llme_reest_ind" );

  switch( GET_STATE( LLME ) )
  {
    case LLME_TLLI_ASSIGNED:
      /* No break. */
    case LLME_TLLI_ASSIGNED_SUSPENDED:
      /*
       * First stop ABM operation
       */
      sig_llme_irx_abmrel_req();
      sig_llme_itx_abmrel_req();
      sig_llme_tx_flush_req(SERVICE_ITX);

      /*
       * Then initiate connection re-establishment
       */
      {
        PALLOC (llgmm_status_ind, LLGMM_STATUS_IND);/*T_LLGMM_STATUS_IND*/

#ifdef LL_2to1
        llgmm_status_ind->ps_cause.ctrl_value = CAUSE_is_from_llc;
        llgmm_status_ind->ps_cause.value.llc_cause = error_cause;
#else
        llgmm_status_ind->error_cause = error_cause;
#endif

        PSEND (hCommGMM, llgmm_status_ind);
      }

      TRACE_1_INFO("Init re-establishment s:%d", llc_data->current_sapi);
      sig_llme_u_reest_req();
      break;

    default:
      TRACE_ERROR( "SIG_ITX_LLME_REEST_IND unexpected" );
      break;
  }
} /* sig_itx_llme_reest_ind() */


/*
+------------------------------------------------------------------------------
| Function    : sig_u_llme_abmest_ind
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_U_LLME_ABMEST_IND
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_u_llme_abmest_ind (void)
{
  TRACE_ISIG( "sig_u_llme_abmest_ind" );

  switch( GET_STATE( LLME ) )
  {
    case LLME_TLLI_ASSIGNED:
      /* No break. */
    case LLME_TLLI_ASSIGNED_SUSPENDED:
      sig_llme_tx_flush_req (SERVICE_ITX);
      sig_llme_irx_abmest_req();
      sig_llme_itx_abmest_req();
      break;

    default:
      TRACE_ERROR( "SIG_U_LLME_ABMEST_IND unexpected" );
      break;
  }
} /* sig_u_llme_abmest_ind() */




/*
+------------------------------------------------------------------------------
| Function    : sig_u_llme_abmrel_ind
+------------------------------------------------------------------------------
| Description : Handles the internal signal SIG_U_LLME_ABMREL_IND
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
GLOBAL void sig_u_llme_abmrel_ind (void)
{
  TRACE_ISIG( "sig_u_llme_abmrel_ind" );

  switch( GET_STATE( LLME ) )
  {
    case LLME_TLLI_ASSIGNED:
      /* No break. */
    case LLME_TLLI_ASSIGNED_SUSPENDED:
      sig_llme_irx_abmrel_req();
      sig_llme_itx_abmrel_req();
      sig_llme_tx_flush_req(SERVICE_ITX);
      break;

    default:
      TRACE_ERROR( "SIG_U_LLME_ABMREL_IND unexpected" );
      break;
  }
} /* sig_u_llme_abmrel_ind() */