view src/g23m-gprs/grr/grr_measp.c @ 268:f2e52cab0a73

abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents fa8dc04885d8
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  GRR
+----------------------------------------------------------------------------- 
|  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 implements primitive handler functions for service
|             MEAS of entity GRR.
+----------------------------------------------------------------------------- 
*/ 

#ifndef GRR_MEASP_C
#define GRR_MEASP_C
#endif

#define ENTITY_GRR

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

#include "typedefs.h"   /* to get Condat data types */
#include <string.h>
#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 "ccdapi.h"     /* to get CCD API */
#include "cnf_grr.h"    /* to get cnf-definitions */
#include "mon_grr.h"    /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "message.h"  
#include "grr.h"        /* to get the global entity definitions */
#include "grr_f.h"
#include "grr_measf.h"  /* to get the definitions for interference measurements */
#include "grr_css.h"

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

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

/*==== PRIVATE FUNCTIONS ====================================================*/
/*
+------------------------------------------------------------------------------
| Function    : meas_p_meas_order_ind
+------------------------------------------------------------------------------
| Description : ...
|
| Parameters  : *d_meas_order - Ptr to packet measurement order message
|
+------------------------------------------------------------------------------
*/
GLOBAL void meas_p_meas_order_ind ( T_D_MEAS_ORDER *d_meas_order )
{ 
  T_NC_ORDER ctrl_order;
  UBYTE      valid_pars;

  TRACE_FUNCTION( "meas_p_meas_order_ind" );
  
  switch( GET_STATE( MEAS ) )
  {
    case MEAS_NULL     :
    case MEAS_IDLE     :
    case MEAS_ACCESS   :
    case MEAS_TRANSFER :
      valid_pars = meas_em_prcs_meas_order( d_meas_order, &ctrl_order );

      if( ( valid_pars & PMO_EXT_VLD ) EQ PMO_EXT_VLD )
      {
        switch( GET_STATE( MEAS_EM ) )
        {
          case MEAS_EM_REP_REQ:
            meas_em_stop_req( );
           
            /*lint -fallthrough*/

          default:
            meas_em_valid_pmo( );
            meas_em_process_t3178( );
            break;
        }
      }
      if( ( valid_pars & PMO_NC_VLD ) EQ PMO_NC_VLD )
      {
        sig_meas_cs_meas_order( ctrl_order );
      }
      break;

    default:
      TRACE_ERROR( "PACKET MEASUREMENT ORDER unexpected 2" );
      break;
  }
} /* meas_p_meas_order_ind() */

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

/*
+------------------------------------------------------------------------------
| Function    : meas_t_im_sync
+------------------------------------------------------------------------------
| Description : Handles the timeout of timer T_IM_SYNC
|
| Parameters  : void
|
+------------------------------------------------------------------------------
*/
GLOBAL void meas_t_im_sync ( void )
{ 
  TRACE_FUNCTION( "meas_t_im_sync" );
  
  meas_im_timer_elapsed( );
} /* meas_t_im_sync() */

/*
+------------------------------------------------------------------------------
| Function    : meas_t3178
+------------------------------------------------------------------------------
| Description : Handles the timeout of timer T3178
|
| Parameters  : void
|
+------------------------------------------------------------------------------
*/
GLOBAL void meas_t3178 ( void )
{ 
  TRACE_FUNCTION( "meas_t3178" );

  TRACE_EVENT( "T3178 timeout" );

  switch( GET_STATE( MEAS ) )
  {
    case MEAS_IDLE:
      switch( GET_STATE( MEAS_EM ) )
      {
        case MEAS_EM_NULL:
          meas_em_start( );
          
          SET_STATE( MEAS_EM, MEAS_EM_REP_REQ );
          break;

        default:
          meas_em_process_t3178( );
          break;
      }
      break;

    case MEAS_ACCESS:
    case MEAS_TRANSFER:
      /*
       * if the MS is in packet transfer mode when the measurement shall start,
       * the MS shall wait until it returns to packet idle mode
       */
      switch( GET_STATE( MEAS_EM ) )
      {
        case MEAS_EM_NULL:
        case MEAS_EM_REP_REQ:
          SET_STATE( MEAS_EM, MEAS_EM_PENDING );

          meas_em_process_t3178( );
          break;
        
        case MEAS_EM_PMR_SENDING:
        case MEAS_EM_PENDING:
          meas_em_process_t3178( );
          break;
      }
      break;

    default:
      TRACE_ERROR( "T3178 timeout unexpected 3" );
      break;
  }  
} /* meas_t3178() */

/*
+------------------------------------------------------------------------------
| Function    : meas_tb_rxlev_sc_req
+------------------------------------------------------------------------------
| Description : Handles the primitive TB_RXLEV_SC_REQ
|
| Parameters  : *tb_rxlev_sc_req - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void meas_tb_rxlev_sc_req ( T_TB_RXLEV_SC_REQ *tb_rxlev_sc_req )
{ 
  TRACE_FUNCTION( "meas_tb_rxlev_sc_req" );
  
  switch( GET_STATE( MEAS ) )
  {
    case MEAS_NULL:
      break;

    case MEAS_IDLE:
    case MEAS_ACCESS:
      if( grr_is_pbcch_present( ) EQ FALSE )
      {
        meas_c_val_update_pim( tb_rxlev_sc_req->sc_rxlev );
        grr_cgrlc_pwr_ctrl_req( TRUE );
      }
      break;

    default:
      TRACE_ERROR( "TB_RXLEV_SC_REQ unexpected" );
      break;
  }

  PFREE( tb_rxlev_sc_req );

} /* meas_tb_rxlev_sc_req() */