+
−/* 
+
−+----------------------------------------------------------------------------- 
+
−|  Project : CCD  
+
−|  Modul   : tdd_ci.c
+
−+----------------------------------------------------------------------------- 
+
−|  Copyright 2004 Texas Instruments Deutschland GmbH
+
−|                 All rights reserved. 
+
−| 
+
−|                 This file is confidential and a trade secret of Texas 
+
−|                 Instruments Deutschland GmbH 
+
−|                 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 Deutschland GmbH. 
+
−+----------------------------------------------------------------------------- 
+
−|  Purpose :  Definition of encoding and decoding functions for TDD_CI type
+
−+----------------------------------------------------------------------------- 
+
−*/ 
+
−
+
−
+
−/*
+
− * standard definitions like GLOBAL, UCHAR, ERROR etc.
+
− */
+
−#include "typedefs.h"
+
−#include "header.h"
+
−
+
−/*
+
− * Types and functions for bit access and manipulation
+
− */
+
−#include "ccd_globs.h"
+
−
+
−/*
+
− * Prototypes of ccd internal functions
+
− */
+
−#include "ccd.h"
+
−#include "bitfun.h"
+
−
+
−/*
+
− * Declaration of coder/decoder tables
+
− */
+
−#include "ccdtable.h"
+
−/*
+
− * Function prototypes of CCD-CCDDATA interface 
+
− */
+
−#include "ccddata.h"
+
−
+
−
+
−#if !(defined (CCD_TEST))
+
−#include "vsi.h"
+
−#endif
+
−
+
−#ifndef RUN_INT_RAM
+
−/* Attention: static data, only used in cdc_tdd_ci_decode */
+
−static const U8 params_bSize[21] =
+
−{
+
−  0,
+
−  9,
+
−  17, 25,
+
−  32, 39, 46, 53,
+
−  59, 65, 71, 77, 83, 89, 95, 101,
+
−  106, 111, 116, 121, 126
+
−};
+
−/*
+
−+--------------------------------------------------------------------+
+
−| PROJECT : CCD                    MODULE  : cdc_tdd_ci_decode       |
+
−+--------------------------------------------------------------------+
+
−
+
−  PURPOSE : Decoding of the TDD_CELL_INFORMATION Field reusing 
+
−            RANGE 511 format of frequency lists (with w0=0.).
+
−            This field allows to compute a set of 9-bit-long 
+
−            TDD_CELL_INFORMATION aprameters.
+
−            The IE is preceded by TDD_Indic0(1 bit) and made of the
+
−            following two IEs:
+
−            1) NR_OF_TDD_CELLS(5 bit field),
+
−            2) TDD_CELL_INFORMATION information parameters
+
−            
+
−            TDD_Indic0 indicates if the parameter value '0000000000' 
+
−            is a member of the set.
+
−            The total number of bits q of this field depends on the 
+
−            value of the parameter NR_OF_TDD_CELLS = m 
+
−            as follows (with q=0 if m=0):
+
−            m q   m q    m q    m q     m    q
+
−            0 0   5 39  10 71  15 101  20    126
+
−            1 9   6 46  11 77  16 106  21-31 0
+
−            2 17  7 53  12 83  17 111
+
−            3 25  8 59  13 89  18 116
+
−            4 32  9 65  14 95  19 121
+
−
+
−            The message is sent from net to MS and a MS supporting 
+
−            enhanced measurements has to understand it.
+
−            
+
−            The space this IE takes in the C-structure is made of a
+
−            counter for the number of decoded parameter and an array
+
−            of them.
+
−*/
+
−
+
−SHORT cdc_tdd_ci_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
+
−{
+
−  U8   ListSize   = 0;
+
−  U16  ListBitLen = 0;
+
−  ULONG  cix_ref, num_prolog_steps, prolog_step_ref;
+
−  short *w;
+
−
+
−#ifdef DEBUG_CCD
+
−  TRACE_CCD (globs, "cdc_tdd_ci_decode()");
+
−#ifdef CCD_SYMBOLS
+
−  TRACE_CCD (globs, "decoding list %s with range 512 format",
+
−                       ccddata_get_alias((USHORT) e_ref, 1));
+
−#else
+
−  TRACE_CCD (globs, "decoding list %d of range 512 format", melem[e_ref].elemRef);
+
−#endif
+
−#endif
+
−
+
−  globs->SeekTLVExt  = FALSE;
+
−  cix_ref = melem[e_ref].calcIdxRef;
+
−  num_prolog_steps = calcidx[cix_ref].numPrologSteps;
+
−  prolog_step_ref  = calcidx[cix_ref].prologStepRef;
+
−
+
−  /*
+
−   * if this element have a defined Prolog
+
−   * we have to process it before decoding the bitstream
+
−   */
+
−  if (num_prolog_steps)
+
−  {
+
−    ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
+
−  }
+
−  
+
−  /*
+
−   * First read NR_OF_TDD_CELLS (5 bits).
+
−   */
+
−  globs->pstructOffs = melem[e_ref].structOffs;;
+
−  bf_readBits (5, globs);
+
−  ListSize = globs->pstruct[globs->pstructOffs++];
+
−
+
−  /* If n=0 there is nothing to do for this IE. */
+
−  if (!ListSize)
+
−  {
+
−    return 1;
+
−  }
+
−
+
−  /* Read the corresponding bit number or suppose the maximum length. */
+
−  if (ListSize <= 20)
+
−  {
+
−    ListBitLen = params_bSize [ListSize];
+
−  }
+
−  else
+
−  {
+
−    /* If n>20 there is nothing to do for this IE. */
+
−    return 1;
+
−  }
+
−  /*
+
−   * Bit size for params is bigger than the size of unread bits in the 
+
−   * message buffer. Danger: buffer overwriting!
+
−   */
+
−  if ( ListBitLen > globs->maxBitpos - globs->bitpos)
+
−  {
+
−    ccd_recordFault (globs, ERR_ELEM_LEN, BREAK, (USHORT) e_ref, 
+
−                     globs->pstruct + globs->pstructOffs);
+
−    ListBitLen = (U16)(globs->maxBitpos - globs->bitpos);
+
−  }
+
−  /*
+
−   * Use dynamic memory for calculation instead of global memory or stack.
+
−   */
+
−  MALLOC (w, 257 * sizeof (U16));
+
−
+
−
+
−  /*
+
−   * Decode the W-parameter.
+
−   * As a rule for this type w(0) must be 0. 
+
−   */
+
−  w[0] = 0;
+
−  cdc_decode_param (param_512+1, &w[1], ListBitLen, globs);
+
−
+
−  /*
+
−   * Decode and set the remaining channel number according the
+
−   * algorithm described in GSM 4.08.
+
−   */
+
−  cdc_decode_frequencies (511, &w[1], 0, TDD_CI_LIST,  globs);
+
−  
+
−  /* Free the dynamic allocated memory. */
+
−  MFREE (w);
+
−
+
−  return 1;
+
−}
+
−#endif /* !RUN_INT_RAM */
+
−
+
−#ifndef RUN_INT_RAM
+
−/*
+
−+--------------------------------------------------------------------+
+
−| PROJECT : CCD                   MODULE  : cdc_tdd_ci_encode        |
+
−+--------------------------------------------------------------------+
+
−
+
−  PURPOSE : Encoding function is not needed, since this message is 
+
−            sent from net to MS.
+
−            It could be only useful for testing procedure if there
+
−            were an encoder function at this place. 
+
−            This will be a future work.
+
−
+
−*/
+
−
+
−SHORT cdc_tdd_ci_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
+
−{
+
−
+
−#ifdef DEBUG_CCD
+
−  TRACE_CCD (globs, "cdc_tdd_ci_encode()");
+
−#endif
+
−#ifdef TARGET_WIN32
+
−  /* TBD */
+
−#endif
+
−  return 1;
+
−}
+
−#endif /* !RUN_INT_RAM */