FreeCalypso > hg > fc-magnetite

annotate src/cs/layer1/gtt_include/ctm/ctm_receiver.h @ 632:d968a3216ba0

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new tangomdm build target TCS211/Magnetite built for target leonardo runs just fine on the Tango-based Caramel board, but a more proper tangomdm build target is preferable in order to better market these Tango modems to prospective commercial customers. The only differences are in GPIO and MCSI config: * MCSI is enabled in the tangomdm build config. * GPIO 1 is loudspeaker amplifier control on Leonardo, but on Tango platforms it can be used for anything. On Caramel boards this GPIO should be configured as an output driving high. * GPIO 2 needs to be configured as Calypso input on Leonardo, but on Tango platforms it can be used for anything. On Caramel boards this GPIO should be configured as an output, either high or low is OK.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 04 Jan 2020 19:27:41 +0000
parents 945cf7f506b2
children
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945cf7f506b2 src/cs: chipsetsw import from tcs211-fcmodem
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1 /*
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2 *******************************************************************************
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3 *
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
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5 * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100
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6 *
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7 * The program(s) may be used and/or copied only with the
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8 * written permission from Ericsson or in accordance
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9 * with the terms and conditions stipulated in the agreement or
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10 * contract under which the program(s) have been supplied.
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11 *
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12 *******************************************************************************
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13 *
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14 * File : ctm_receiver.h
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15 * Author : EEDN/RV Matthias Doerbecker
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16 * Tested Platforms : Sun Solaris, Windows NT 4.0
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17 * Description : header file for ctm_receiver.c
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18 *
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19 * Changes since October 13, 2000:
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20 * - added reset function reset_ctm_receiver()
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21 *
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22 * $Log: $
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23 *
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24 *******************************************************************************
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25 */
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26 #ifndef ctm_receiver_h
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27 #define ctm_receiver_h "$Id: $"
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28
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29 /*
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30 *******************************************************************************
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31 * INCLUDE FILES
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32 *******************************************************************************
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33 */
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34
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35 #include "init_interleaver.h"
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36 //#include "tonedemod.h"
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37 #include "wait_for_sync.h"
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38 #include "conv_poly.h"
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39 #include "viterbi.h"
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40 #include "ctm_typedefs.h"
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41 #include "fifo.h"
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42
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43 #include <stdlib.h>
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44 #include <stdio.h>
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45
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46
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47 /* ******************************************************************/
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48 /* Type definitions for variables that contain all states of the */
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49 /* Cellular Text Telephone Modem (CTM) Transmitter and Receiver, */
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50 /* respectively. */
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51 /* ******************************************************************/
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52
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53 typedef struct {
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54 /* simple variables */
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55 WORD16 samplingCorrection;
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56 WORD16 numBitsWithLowReliability;
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57 WORD16 cntIdleSymbols;
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58 WORD16 numDeintlBits;
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59 WORD16 cntRXBits;
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60 WORD16 syncCorrect;
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61 WORD16 cntUnreliableGrossBits;
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62 WORD16 intl_delay;
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63
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64 /* structs (state types) */
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65 fifo_state_t rx_bits_fifo_state;
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66 fifo_state_t octet_fifo_state;
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67 fifo_state_t net_bits_fifo_state;
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68 //demod_state_t tonedemod_state;
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69 // interleaver_state_t intl_state;
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70 interleaver_state_t deintl_state;
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71 wait_for_sync_state_t wait_state;
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72 viterbi_t viterbi_state;
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73
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74 /* vectors (not to be allocated) */
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75 #if (NUM_MUTE_ROWS>0)
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76 WORD16 mutePositions[intlvB*NUM_MUTE_ROWS];
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77 #else
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78 WORD16 mutePositions[1];
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79 #endif
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80
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81 /* vectors (to be allocated in init_ctm_receiver()) */
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82 WORD16 *waitSyncOut;
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83 WORD16 *deintlOut;
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84
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85 } rx_state_t;
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86
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87
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88
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89
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90 /***********************************************************************/
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91 /* init_ctm_receiver() */
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92 /* ******************* */
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93 /* Initialization of the CTM Receiver. */
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94 /* */
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95 /* output vaiables: */
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96 /* rx_state : pointer to a variable of rx_state_t containing the */
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97 /* initialized states of the receiver */
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98 /***********************************************************************/
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99
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100 void init_ctm_receiver(rx_state_t* rx_state);
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101
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102 /*
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103 ***********************************************************************
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104 * Shutdown_ctm_receiver() *
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105 * *********************** *
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106 * Shutdown of the CTM Receiver. *
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107 * *
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108 * Input variables: *
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109 * rx_state : pointer to a variable of rx_state_t containing the *
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110 * initialized states of the receiver *
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111 ***********************************************************************
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112 */
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113 void Shutdown_ctm_receiver(rx_state_t* rx_state);
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114
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115 /*
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116 ***********************************************************************
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117 * reset_ctm_receiver() *
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118 * ******************** *
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119 * Reset of the Cellular Text Telephone Modem receiver, state *
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120 * machines and buffer pointers. *
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121 * *
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122 * Input variables: *
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123 * rx_state : pointer to a variable of rx_state_t containing the *
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124 * initialized states of the receiver *
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125 ***********************************************************************
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126 */
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127 void reset_ctm_receiver(rx_state_t* rx_state);
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128
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129
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130 /***************************************************************************/
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131 /* ctm_receiver() */
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132 /* ************** */
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133 /* Runs the Cellular Text Telephone Modem Receiver for a block of */
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134 /* (nominally) 160 samples. Due to the internal synchronization, the */
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135 /* number of processed samples might vary between 156 and 164 samples. */
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136 /* The input of the samples and the output of the decoded characters */
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137 /* is handled via fifo buffers, which have to be initialized */
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138 /* externally before using this function (see fifo.h for details). */
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139 /* */
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140 /* input/output variables: */
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141 /* *ptr_signal_fifo_state fifo state for the input samples */
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142 /* *ptr_output_char_fifo_state fifo state for the output characters */
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143 /* *ptr_early_muting_required returns whether the original audio signal */
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144 /* must not be forwarded. This is to guarantee */
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145 /* that the preamble or resync sequence is */
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146 /* detected only by the first CTM device, if */
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147 /* several CTM devices are cascaded */
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148 /* subsequently. */
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149 /* *rx_state pointer to the variable containing the */
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150 /* receiver states */
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151 /***************************************************************************/
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152
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153 void ctm_receiver(fifo_state_t* ptr_signal_fifo_state,
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154 fifo_state_t* ptr_output_char_fifo_state,
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155 BOOL* ptr_early_muting_required,
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156 rx_state_t* rx_state);
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157
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158 #endif