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annotate src/gpf3/ccd/tdd_ci.c @ 460:4d4f0bba9469

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doc/D-Sample written
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 19 Mar 2018 18:45:16 +0000
parents c41a534f33c6
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : CCD
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4 | Modul : tdd_ci.c
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2004 Texas Instruments Deutschland GmbH
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Deutschland GmbH
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Deutschland GmbH.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : Definition of encoding and decoding functions for TDD_CI type
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18 +-----------------------------------------------------------------------------
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19 */
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20
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21
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22 /*
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23 * standard definitions like GLOBAL, UCHAR, ERROR etc.
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24 */
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25 #include "typedefs.h"
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26 #include "header.h"
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27
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28 /*
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29 * Types and functions for bit access and manipulation
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30 */
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31 #include "ccd_globs.h"
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32
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33 /*
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34 * Prototypes of ccd internal functions
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35 */
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36 #include "ccd.h"
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37 #include "bitfun.h"
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38
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39 /*
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40 * Declaration of coder/decoder tables
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41 */
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42 #include "ccdtable.h"
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43 /*
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44 * Function prototypes of CCD-CCDDATA interface
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45 */
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46 #include "ccddata.h"
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47
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48
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49 #if !(defined (CCD_TEST))
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50 #include "vsi.h"
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51 #endif
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52
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53 #ifndef RUN_INT_RAM
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54 /* Attention: static data, only used in cdc_tdd_ci_decode */
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55 static const U8 params_bSize[21] =
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56 {
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57 0,
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58 9,
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59 17, 25,
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60 32, 39, 46, 53,
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61 59, 65, 71, 77, 83, 89, 95, 101,
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62 106, 111, 116, 121, 126
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63 };
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64 /*
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65 +--------------------------------------------------------------------+
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66 | PROJECT : CCD MODULE : cdc_tdd_ci_decode |
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67 +--------------------------------------------------------------------+
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68
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69 PURPOSE : Decoding of the TDD_CELL_INFORMATION Field reusing
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70 RANGE 511 format of frequency lists (with w0=0.).
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71 This field allows to compute a set of 9-bit-long
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72 TDD_CELL_INFORMATION aprameters.
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73 The IE is preceded by TDD_Indic0(1 bit) and made of the
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74 following two IEs:
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75 1) NR_OF_TDD_CELLS(5 bit field),
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76 2) TDD_CELL_INFORMATION information parameters
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77
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78 TDD_Indic0 indicates if the parameter value '0000000000'
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79 is a member of the set.
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80 The total number of bits q of this field depends on the
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81 value of the parameter NR_OF_TDD_CELLS = m
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82 as follows (with q=0 if m=0):
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83 m q m q m q m q m q
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84 0 0 5 39 10 71 15 101 20 126
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85 1 9 6 46 11 77 16 106 21-31 0
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86 2 17 7 53 12 83 17 111
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87 3 25 8 59 13 89 18 116
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88 4 32 9 65 14 95 19 121
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89
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90 The message is sent from net to MS and a MS supporting
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91 enhanced measurements has to understand it.
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92
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93 The space this IE takes in the C-structure is made of a
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94 counter for the number of decoded parameter and an array
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95 of them.
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96 */
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97
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98 SHORT cdc_tdd_ci_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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99 {
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100 U8 ListSize = 0;
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101 U16 ListBitLen = 0;
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102 ULONG cix_ref, num_prolog_steps, prolog_step_ref;
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103 short *w;
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104
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105 #ifdef DEBUG_CCD
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106 TRACE_CCD (globs, "cdc_tdd_ci_decode()");
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107 #ifdef CCD_SYMBOLS
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108 TRACE_CCD (globs, "decoding list %s with range 512 format",
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109 ccddata_get_alias((USHORT) e_ref, 1));
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110 #else
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111 TRACE_CCD (globs, "decoding list %d of range 512 format", melem[e_ref].elemRef);
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112 #endif
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113 #endif
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114
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115 globs->SeekTLVExt = FALSE;
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116 cix_ref = melem[e_ref].calcIdxRef;
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117 num_prolog_steps = calcidx[cix_ref].numPrologSteps;
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118 prolog_step_ref = calcidx[cix_ref].prologStepRef;
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119
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120 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 * if this element have a defined Prolog
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parents:
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122 * we have to process it before decoding the bitstream
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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123 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 if (num_prolog_steps)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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125 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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126 ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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127 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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128
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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129 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 * First read NR_OF_TDD_CELLS (5 bits).
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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131 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 globs->pstructOffs = melem[e_ref].structOffs;;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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133 bf_readBits (5, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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134 ListSize = globs->pstruct[globs->pstructOffs++];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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135
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 /* If n=0 there is nothing to do for this IE. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 if (!ListSize)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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138 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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139 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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140 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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142 /* Read the corresponding bit number or suppose the maximum length. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 if (ListSize <= 20)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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144 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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145 ListBitLen = params_bSize [ListSize];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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146 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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147 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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148 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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149 /* If n>20 there is nothing to do for this IE. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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150 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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151 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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152 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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153 * Bit size for params is bigger than the size of unread bits in the
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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154 * message buffer. Danger: buffer overwriting!
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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155 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 if ( ListBitLen > globs->maxBitpos - globs->bitpos)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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157 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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158 ccd_recordFault (globs, ERR_ELEM_LEN, BREAK, (USHORT) e_ref,
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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159 globs->pstruct + globs->pstructOffs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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160 ListBitLen = (U16)(globs->maxBitpos - globs->bitpos);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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161 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 * Use dynamic memory for calculation instead of global memory or stack.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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164 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 MALLOC (w, 257 * sizeof (U16));
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 * Decode the W-parameter.
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parents:
diff changeset
170 * As a rule for this type w(0) must be 0.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 w[0] = 0;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 cdc_decode_param (param_512+1, &w[1], ListBitLen, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 * Decode and set the remaining channel number according the
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 * algorithm described in GSM 4.08.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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178 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 cdc_decode_frequencies (511, &w[1], 0, TDD_CI_LIST, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 /* Free the dynamic allocated memory. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 MFREE (w);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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184 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 #endif /* !RUN_INT_RAM */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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187
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 #ifndef RUN_INT_RAM
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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189 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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191 | PROJECT : CCD MODULE : cdc_tdd_ci_encode |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 PURPOSE : Encoding function is not needed, since this message is
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 sent from net to MS.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 It could be only useful for testing procedure if there
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 were an encoder function at this place.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 This will be a future work.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 SHORT cdc_tdd_ci_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 #ifdef DEBUG_CCD
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 TRACE_CCD (globs, "cdc_tdd_ci_encode()");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 #ifdef TARGET_WIN32
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 /* TBD */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 #endif /* !RUN_INT_RAM */