view src/g23m-gprs/gmm/gmm_rdyp.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   :  gmm_rdyp.c
+----------------------------------------------------------------------------- 
|  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 GMM and implements all 
|             functions to handles the incoming primitives as described in 
|             the SDL-documentation (RDY-statemachine)
+----------------------------------------------------------------------------- 
*/ 


#ifndef GMM_RDYP_C
#define GMM_RDYP_C
#endif

#define ENTITY_GMM

/*==== 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 "ccdapi.h"     /* to get CCD API */
#include "cnf_gmm.h"    /* to get cnf-definitions */
#include "mon_gmm.h"    /* to get mon-definitions */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "gmm.h"        /* to get the global entity definitions */

#include "gmm_kerns.h"  /* to get signals */
#include "gmm_kernp.h"  /* to get timer functions from KERN */
#include "gmm_kernf.h"  /* to get functions from KERN */
#include "gmm_rdyf.h"

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

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

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

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


/*
+------------------------------------------------------------------------------
| Function    : rdy_cgrlc_standby_state_ind
+------------------------------------------------------------------------------
| Description : Handles the primitive CGRLC_STANDBY_STATE_IND (TCS 2.1).
|
|               TIMEOUT for READY´TIMER
|
|          MSC: 3.17 Timer
|          MSC: 3.17.4 T3314 time-out
|
| Parameters  : *cgrlc_standby_state_ind - Ptr to primitive payload (TCS 2.1)
|
+------------------------------------------------------------------------------
*/
GLOBAL void rdy_cgrlc_standby_state_ind (const T_CGRLC_STANDBY_STATE_IND *cgrlc_standby_state_ind)
{
  GMM_TRACE_FUNCTION( "rdy_cgrlc_standby_state_ind" );
  switch( GET_STATE( RDY ) )
  {
    default:
      /*
       * <R.GMM.READYTIM.M.020>
       */
      rdy_start_t3312();
      
      SET_STATE ( RDY, RDY_STANDBY );

      break;
    case RDY_DEACTIVATED:
    case RDY_STANDBY_TWICE:
      break;
   }
  
   PFREE(cgrlc_standby_state_ind);
   GMM_RETURN;
} /* rdy_cgrlc_standby_state_ind */


/*
+------------------------------------------------------------------------------
| Function    : rdy_cgrlc_trigger_ind (TCS 2.1)
+------------------------------------------------------------------------------
| Description : Handles the primitive CGRLC_TRIGGER_IND (TCS 2.1)
|               
|               Start of the READY TIMER
|
|               <R.GMM.READYTIM.M.009>
|
| Parameters  : *cgrlc_trigger_ind - Ptr to primitive payload (TCS 2.1)
|
+------------------------------------------------------------------------------
*/
GLOBAL void rdy_cgrlc_trigger_ind ( T_CGRLC_TRIGGER_IND *cgrlc_trigger_ind )  /* TCS 2.1 */
{ 
  USHORT timer;
  BOOL   stop_timer=FALSE;
  GMM_TRACE_FUNCTION( "rdy_cgrlc_trigger_ind" );  /* TCS 2.1 */

  if (CGRLC_PRIM_TYPE_GMM==cgrlc_trigger_ind->prim_type) /* TCS 2.1 */
  {  
    for ( timer=0;timer<TIMER_MAX;timer++)
    {
      if (gmm_data->rdy.timer_value[timer]>0)
      {
        T_TIME value=0;
        if ( VSI_OK == vsi_t_status ( GMM_handle ,timer, &value )
        && value >0 )
          /*
           * react only if timer has not stopped
          */
        {
          TRACE_1_INFO ("value of Timer %d: %d", timer);
          switch (timer)
          {
            case kern_TPOWER_OFF:
              vsi_t_stop ( GMM_handle, kern_TPOWER_OFF);       
              kern_tpower_off();
              stop_timer=TRUE;
              break;
            case kern_TLOCAL_DETACH:
              vsi_t_stop ( GMM_handle, kern_TLOCAL_DETACH);       
              kern_tlocal_detach();
              stop_timer=TRUE;
              break;        
            default:
              TRACE_1_INFO ( "START: TIMER %d" ,timer);
              vsi_t_start ( GMM_handle , 
              timer, 
              gmm_data->rdy.timer_value[timer]);
              break;
          }        
          gmm_data->rdy.timer_value[timer]=0;
        }
      }
      else
      {
        gmm_data->rdy.timer_value[timer]=0;
      }
    }
  }

   /* 
   * As RR will inform MM about ongoing PS transfer using RR_ABORT_IND, no need
   * to notify MM using this mmgmm_trigger_req primitive
   */

  switch( GET_STATE( RDY ) )
  {
    case RDY_READY:
      vsi_t_stop (GMM_handle, rdy_T3312);
      if (stop_timer)
      {
        SET_STATE (RDY, RDY_STANDBY );
      }
      break;
    case RDY_STANDBY_TWICE:
      SET_STATE(RDY,RDY_STANDBY);
      {
        PALLOC (cgrlc_force_to_standby_req, CGRLC_FORCE_TO_STANDBY_REQ);
        PSEND ( hCommGRLC, cgrlc_force_to_standby_req );
      }
      break;
    case RDY_STANDBY:
    {  
      vsi_t_stop (GMM_handle, rdy_T3312);
      if (stop_timer)
      {
        SET_STATE (RDY, RDY_STANDBY );
      }
      else
      {
        SET_STATE ( RDY, RDY_READY );
      }
      break;
    }
    case RDY_DEACTIVATED:
      break;
    default:
      TRACE_ERROR( "CGRLC_TRIGGER_IND unexpected" ); /* TCS 2.1 */
      break;
  }
  
  PFREE(cgrlc_trigger_ind);
  GMM_RETURN;
} /* rdy_cgrlc_trigger_ind() */ /* TCS 2.1 */


/*
+------------------------------------------------------------------------------
| Function    : rdy_cgrlc_ready_state_ind (TCS 2.1)
+------------------------------------------------------------------------------
| Description : Handles the primitive CGRLC_READY_STATE_IND (TCS 2.1)
|               
|               Start of the READY TIMER
|
|               
|
| Parameters  : *cgrlc_ready_state_ind - Ptr to primitive payload (TCS 2.1)
|
+------------------------------------------------------------------------------
*/
GLOBAL void rdy_cgrlc_ready_state_ind ( const T_CGRLC_READY_STATE_IND *cgrlc_ready_state_ind )  /* TCS 2.1 */
{ 
  GMM_TRACE_FUNCTION( "rdy_cgrlc_ready_state_ind" );  /* TCS 2.1 */

  switch( GET_STATE( RDY ) )
  {
    case RDY_READY:
      vsi_t_stop (GMM_handle, rdy_T3312);
      break;
    case RDY_STANDBY:
      vsi_t_stop (GMM_handle, rdy_T3312);
      SET_STATE ( RDY, RDY_READY );
      break;
    case RDY_DEACTIVATED:
    case RDY_STANDBY_TWICE:
      break;
    default:
      TRACE_ERROR( "CGRLC_READY_STATE_IND unexpected" ); /* TCS 2.1 */
      break;
    
   }
   
   PFREE(cgrlc_ready_state_ind);
   GMM_RETURN;
} /* rdy_cgrlc_ready_state_ind() */ /* TCS 2.1 */