+
−/* 
+
−+----------------------------------------------------------------------------- 
+
−|  Project :  
+
−|  Modul   : s_padding.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 :  Definition of encoding and decoding functions for S_PADDING elements 
+
−+----------------------------------------------------------------------------- 
+
−*/ 
+
−
+
−
+
−/*
+
− * standard definitions like GLOBAL, UCHAR, ERROR etc.
+
− */
+
−#include "typedefs.h"
+
−#include "header.h"
+
−
+
−/*
+
− * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only
+
− * look at ccdapi.h
+
− */
+
−#undef USE_DRIVER
+
−#include "ccdapi.h"
+
−
+
−/*
+
− * Types and functions for bit access and manipulation
+
− */
+
−#include "ccd_globs.h"
+
−#include "bitfun.h"
+
−
+
−/*
+
− * Prototypes of ccd internal functions
+
− */
+
−#include "ccd.h"
+
−
+
−/*
+
− * Declaration of coder/decoder tables
+
− */
+
−#include "ccdtable.h"
+
−#include "ccddata.h"
+
−
+
−#ifndef RUN_FLASH
+
−/*
+
−+--------------------------------------------------------------------+
+
−| PROJECT : CCD (6144)               MODULE  : CDC_GSM               |
+
−| STATE   : code                     ROUTINE : cdc_padd_decode       |
+
−+--------------------------------------------------------------------+
+
−
+
−  PURPOSE : Decoding of the GSM Type CSN1 spare padding.
+
−            This function does not evaluate the encoded bits, since
+
−            their content is irrelevant.
+
−*/
+
−
+
−SHORT cdc_padd_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
+
−{
+
−  USHORT  cixRef;
+
−
+
−#ifdef DEBUG_CCD
+
−  TRACE_CCD (globs, "cdc_padd_decode()");
+
−#endif
+
−
+
−  /*
+
−   * Do not decode padding bits. They are not relevant.
+
−   * Just adjust the position pointer in the bit stream buffer.
+
−   * Either to the next octet boundary or to the message end, if necessary.
+
−   */
+
−  bf_incBitpos (8-(globs->bitpos & 7), globs);
+
−
+
−  /* First assume padding bits up to an octet boundary. In this case
+
−   * message extension could be made of T, TV or TLV types.
+
−   */
+
−  globs->SeekTLVExt = TRUE;
+
−
+
−  cixRef = melem[e_ref].calcIdxRef;
+
−  if (calcidx[cixRef].numPrologSteps > 0)
+
−  {
+
−    USHORT msgEnd = (USHORT) calc[calcidx[cixRef].prologStepRef].operand * 8;
+
−    if (msgEnd)
+
−    {
+
−      msgEnd += globs->bitoffs;
+
−      msgEnd = (USHORT)MINIMUM(globs->maxBitpos, msgEnd);
+
−      bf_setBitpos (msgEnd, globs);
+
−      /*
+
−       * Padding bytes exclude the presence of message extension.
+
−       */
+
−      globs->SeekTLVExt = FALSE;
+
−    }
+
−  }
+
−
+
−  return 1;
+
−}
+
−#endif /* !RUN_FLASH */
+
−
+
−#ifndef RUN_FLASH
+
−/*
+
−+--------------------------------------------------------------------+
+
−| PROJECT : CCD (6144)              MODULE  : CDC_GSM                |
+
−| STATE   : code                    ROUTINE : cdc_padd_encode        |
+
−+--------------------------------------------------------------------+
+
−
+
−  PURPOSE : Encoding of the GSM Type CSN1 spare padding.
+
−            Supported padding values are 0x00 and 0x2B, if first prolog 
+
−            step is a value msg_len, padding is done until globs->bitpos is 
+
−            msg_len*8, else until octet boundary 
+
−*/
+
−
+
−SHORT cdc_padd_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
+
−{
+
−  UBYTE   padd_bit = 0;
+
−  USHORT  cixRef;
+
−
+
−#ifdef DEBUG_CCD
+
−  TRACE_CCD (globs, "cdc_padd_encode()");
+
−#endif
+
−
+
−  cixRef = melem[e_ref].calcIdxRef;
+
−
+
−  /*
+
−   * if this element is conditional, check the condition
+
−   */
+
−  if (calcidx[cixRef].numCondCalcs NEQ 0
+
−  AND ! ccd_conditionOK (e_ref, globs))
+
−    return 1;
+
−
+
−  if (melem[e_ref].elemType EQ 'S' AND spare[melem[e_ref].elemRef].bSize EQ 8)
+
−  {
+
−    UBYTE spareVal = (UBYTE)(spare[melem[e_ref].elemRef].value);
+
−    /*
+
−     * Element is a SPARE of length 8.
+
−     */
+
−    while (globs->bitpos % 8 NEQ 0)
+
−    {
+
−      switch(spareVal)
+
−      {
+
−        case 0:
+
−          break;
+
−        case 0x2B:
+
−          padd_bit = (UBYTE)GET_HL(0);
+
−          break;
+
−        default:
+
−          ccd_setError (globs, ERR_INTERNAL_ERROR,
+
−                        BREAK,
+
−                        (USHORT) (globs->bitpos),
+
−                        (USHORT) -1);
+
−      }
+
−      bf_writeBit (padd_bit, globs);
+
−    }
+
−    if (calcidx[cixRef].numPrologSteps > 0)
+
−    {
+
−      if (calc[calcidx[cixRef].prologStepRef].operation NEQ 'P')
+
−        ccd_setError (globs, ERR_INTERNAL_ERROR, BREAK, (USHORT) -1);
+
−      else
+
−      {
+
−        USHORT msgLen = (USHORT)(calc[calcidx[cixRef].prologStepRef].operand * 8);
+
−
+
−        while (globs->bitpos - globs->bitoffs < msgLen )
+
−        {
+
−          bf_codeLongNumber (8, (ULONG) spareVal, globs);
+
−        }
+
−      }
+
−    }
+
−  }
+
−  else
+
−  {
+
−    ccd_setError (globs, ERR_INVALID_TYPE,
+
−                  BREAK,
+
−                  (USHORT) (globs->bitpos),
+
−                  (USHORT) -1);
+
−  }
+
−
+
−  return 1;
+
−}
+
−#endif /* !RUN_FLASH */