view src/g23m-gsm/mm/mm_fors.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
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM-PS (8410)
|  Modul   :  MM_FORS
+----------------------------------------------------------------------------- 
|  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 functions for the formatter
|             capability of the module Mobility Managemant.
+----------------------------------------------------------------------------- 
*/ 

#ifndef MM_FORS_C
#define MM_FORS_C

#define ENTITY_MM

/*==== INCLUDES ===================================================*/
#if defined (NEW_FRAME)

#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include "typedefs.h"
#include "pcm.h"
#include "pconst.cdg"
#include "mconst.cdg"
#include "message.h"
#include "ccdapi.h"
#include "vsi.h"
#include "custom.h"
#include "gsm.h"
#include "prim.h"
#include "cnf_mm.h"
#include "mon_mm.h"
#include "pei.h"
#include "tok.h"
#include "mm.h"

#else

#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include "stddefs.h"
#include "pcm.h"
#include "pconst.cdg"
#include "mconst.cdg"
#include "message.h"
#include "ccdapi.h"
#include "custom.h"
#include "gsm.h"
#include "prim.h"
#include "cnf_mm.h"
#include "mon_mm.h"
#include "vsi.h"
#include "pei.h"
#include "tok.h"
#include "mm.h"

#endif

/*==== EXPORT =====================================================*/

/*==== PRIVAT =====================================================*/

/*==== VARIABLES ==================================================*/

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

/*
 * -------------------------------------------------------------------
 * SIGNAL Processing functions
 * -------------------------------------------------------------------
 */

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

  PURPOSE : Process the signal cm_message.

*/

GLOBAL void for_cm_message (T_RR_DATA_REQ *rr_data_req)
{
  TRACE_FUNCTION ("for_cm_message()");

  TIMERSTOP (T3240);

  PSENDX (RR, rr_data_req);
}

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

  PURPOSE : Process the signal data_req.

*/

GLOBAL void for_data_req (USHORT bit_size_message)
{
  U8 *payload;
  U16 length;
/* Implements Measure#32: Row 26,...,33 */
  PALLOC_SDU (data, RR_DATA_REQ, bit_size_message);

  TRACE_FUNCTION ("for_data_req()");

  data->sdu.o_buf = ENCODE_OFFSET ;

  ccd_codeMsg (CCDENT_MM,
               UPLINK,
               (T_MSGBUF *) &data->sdu,
               (UBYTE *) _decodedMsg,
               NOT_PRESENT_8BIT);

  ccd_codeByte (data->sdu.buf, (USHORT)(data->sdu.o_buf - 8), 8,
                PD_MM_TI_0);
  data->sdu.l_buf += 8;
  data->sdu.o_buf -= 8;

  payload = &(data->sdu.buf[0]);     /* beginning of buffer      */
  payload += (data->sdu.o_buf) >> 3; /*  plus offset (bytes)     */
  length  = (data->sdu.l_buf) >> 3;  /* length (bytes, bits / 8) */

/* Implements Measure#32: Row 26,...,33 */
  switch ( _decodedMsg [0] )
  {
    case U_AUTH_RES:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: AUTHENTICATION RESPONSE",
                   payload,
                   length);
      break;

    case U_IDENT_RES:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: IDENTITY RESPONSE",
                   payload,
                   length);
      break;

    case U_CM_REESTAB_REQ:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: CM RE-ESTABLISH REQUEST",
                   payload,
                   length);
      break;

    case U_CM_SERV_ABORT:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: CM SERVICE ABORT",
                   payload,
                   length);
      break;

    case U_CM_SERV_REQ:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: CM SERVICE REQUEST",
                   payload,
                   length);
      break;

    case U_IMSI_DETACH_IND:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: IMSI DETACH INDICATION",
                   payload,
                   length);
      break;

    case U_LOC_UPD_REQ:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: LOC UPDATE REQUEST",
                   payload,
                   length);
      break;

    case U_TMSI_REALLOC_COMP:
      TRACE_BINDUMP( mm_handle,
                   TC_USER4,
                   "Up Link: TMSI REALLOC COMPLETE",
                   payload,
                   length);
      break;

    default:
      break;
  }
  PSENDX (RR, data);
}

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

  PURPOSE : Process the signal est_req.

*/

GLOBAL void for_est_req (USHORT est_cause, USHORT bit_size_message)
{
  PALLOC_SDU ( establish_req, RR_ESTABLISH_REQ, bit_size_message);

  TRACE_FUNCTION ("for_est_req()");

  TIMERSTOP (T3240);

  establish_req->sdu.o_buf = ENCODE_OFFSET;

  ccd_codeMsg (CCDENT_MM,
               UPLINK,
               (T_MSGBUF *) &establish_req->sdu,
               (UBYTE *) _decodedMsg,
               0xff);

  ccd_codeByte (establish_req->sdu.buf,
                (USHORT)(establish_req->sdu.o_buf - 8),
                8,
                PD_MM_TI_0);
  establish_req->sdu.l_buf += 8;
  establish_req->sdu.o_buf -= 8;
  establish_req->estcs      = est_cause;

  PSENDX (RR, establish_req);
}

#endif