view src/g23m-gprs/gmm/gmm_txp.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_txp.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 (TX-statemachine)
+----------------------------------------------------------------------------- 
*/ 

#ifndef GMM_TXP_C
#define GMM_TXP_C
#endif

#define ENTITY_GMM

/*==== INCLUDES =============================================================*/
#include <string.h>     /* to get memcpy */
#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_txf.h"    /* to get the local funktions */

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

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

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

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



/*
+------------------------------------------------------------------------------
| Function    : tx_gmmsm_unitdata_req
+------------------------------------------------------------------------------
| Description : Handles the primitive GMMSM_UNITDATA_REQ
|
| Parameters  : *gmmsm_unitdata_req - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
#ifdef GMM_TCS4 
GLOBAL void tx_gmmsm_unitdata_req ( T_MMPM_UNITDATA_REQ* gmmsm_unitdata_req )
#else
GLOBAL void tx_gmmsm_unitdata_req ( T_GMMSM_UNITDATA_REQ* gmmsm_unitdata_req )
#endif 
{ 
  GMM_TRACE_FUNCTION( "tx_gmmsm_unitdata_req" );

  
  switch( GET_STATE( TX ) )
  {
    case TX_READY:
    {
      /*
       * The messages from SM are passed to LLC
       */
      /*
       * PPASS (gmmsm_unitdata_req, ll_unitdata_req, LL_UNITDATA_REQ );
       * is not possible, because of different parameters
       */
      PALLOC_SDU ( ll_unitdata_req, LL_UNITDATA_REQ, gmmsm_unitdata_req->sdu.l_buf);
      
      
      tx_fill_unitdata_req ( ll_unitdata_req, LOCAL_TLLI, gmm_data->cipher );
      memcpy (&ll_unitdata_req->sdu.buf[(ll_unitdata_req->sdu.o_buf)>>3],
        &gmmsm_unitdata_req->sdu.buf[(gmmsm_unitdata_req->sdu.o_buf)>>3],
        (gmmsm_unitdata_req->sdu.l_buf)>>3);



      #ifdef TRACE_EVE
      #ifndef GMM_TCS4 
          switch ( ll_unitdata_req->sdu.buf[((ll_unitdata_req->sdu.o_buf)>>3)+1])
          {
            case ACTIVATE_PDP_REQ:
              TRACE_EVENT ( "OPar: ACTIVATE_PDP_REQ");break;
            case ACTIVATE_PDP_ACC:      
              TRACE_EVENT ( "OPar: ACTIVATE_PDP_ACC");break;
            case ACTIVATE_PDP_REJ:      
              TRACE_EVENT ( "OPar: ACTIVATE_PDP_REJ");break;
            case REQ_PDP_ACT:      
              TRACE_EVENT ( "OPar: REQ_PDP_ACT");break;
            case REQ_PDP_ACT_REJ:      
              TRACE_EVENT ( "OPar: REQ_PDP_ACT_REJ");break;
            case MOD_PDP_REQ:      
              TRACE_EVENT ( "OPar: MOD_PDP_REQ");break;
            case MOD_PDP_ACC:      
              TRACE_EVENT ( "OPar: MOD_PDP_ACC");break;
            case DEACT_PDP_REQ:      
              TRACE_EVENT ( "OPar: DEACT_PDP_REQ");break;
            case DEACT_PDP_ACC:      
              TRACE_EVENT ( "OPar: DEACT_PDP_ACC");break; 
            case SM_STATUS:      
              TRACE_EVENT ( "OPar: SM_STATUS");break;
            default:
              TRACE_EVENT ( "OPar: SNDCP unknown");break;
          }
    #else    /*#ifndef GMM_TCS4*/ 
          switch ( ll_unitdata_req->sdu.buf[((ll_unitdata_req->sdu.o_buf)>>3)+1])
          {
            case ACTIVATE_PDP_CONTEXT_REQUEST:
              TRACE_EVENT ( "OPar: ACTIVATE_PDP_CONTEXT_REQUEST");break;
            case ACTIVATE_PDP_CONTEXT_ACCEPT:      
              TRACE_EVENT ( "OPar: ACTIVATE_PDP_CONTEXT_ACCEPT");break;
            case ACTIVATE_PDP_CONTEXT_REJECT:      
              TRACE_EVENT ( "OPar: ACTIVATE_PDP_CONTEXT_REJECT");break;
            case REQUEST_PDP_CONTEXT_ACTIVATION:      
              TRACE_EVENT ( "OPar: REQUEST_PDP_CONTEXT_ACTIVATION");break;
            case REQUEST_PDP_CONTEXT_ACTIVATION_REJECT:      
              TRACE_EVENT ( "OPar: REQUEST_PDP_CONTEXT_ACTIVATION_REJECT");break;
            case U_MODIFY_PDP_CONTEXT_REQUEST:      
              TRACE_EVENT ( "OPar: U_MODIFY_PDP_CONTEXT_REQUEST");break;
            case U_MODIFY_PDP_CONTEXT_ACCEPT:      
              TRACE_EVENT ( "OPar: U_MODIFY_PDP_CONTEXT_ACCEPT");break;
            case DEACTIVATE_PDP_CONTEXT_REQUEST:      
              TRACE_EVENT ( "OPar: DEACTIVATE_PDP_CONTEXT_REQ");break;
            case DEACTIVATE_PDP_CONTEXT_ACCEPT:      
              TRACE_EVENT ( "OPar: DEACTIVATE_PDP_CONTEXT_ACCEPT");break; 
            case SM_STATUS:      
              TRACE_EVENT ( "OPar: SM_STATUS");break;
            default:
              TRACE_EVENT ( "OPar: SNDCP unknown");break;
          }
      #endif   /*#ifndef GMM_TCS4*/
    #endif /* _SIMULATION_ */

      PSEND ( hCommLLC, ll_unitdata_req );
      PFREE ( gmmsm_unitdata_req );
      break;
    }
    default:
      PFREE (gmmsm_unitdata_req);
      TRACE_ERROR( "GMMSM_UNITDATA_REQ unexpected" );
      break;
  }

} /* tx_gmmsm_unitdata_req() */