FreeCalypso > hg > fc-tourmaline
annotate src/cs/layer1/gtt_include/ctm/ctm_transmitter.h @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 4e78acac3d88 |
children |
rev | line source |
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0
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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_transmitter.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_transmitter.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_transmitter() |
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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_transmitter_h |
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27 #define ctm_transmitter_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 "ctm_typedefs.h" |
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36 #include "ctm_defines.h" |
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37 #include "init_interleaver.h" |
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38 #include "tonemod.h" |
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39 #include "conv_poly.h" |
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40 #include "fifo.h" |
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41 |
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42 /* ******************************************************************/ |
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43 /* Type definitions for variables that contain all states of the */ |
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44 /* CTM Transmitter */ |
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45 /* ******************************************************************/ |
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46 |
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47 typedef struct { |
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48 BOOL burstActive; |
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49 WORD16 cntIdleSymbols; |
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50 WORD16 cntEncBitsInCurrentBlock; |
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51 WORD16 cntTXBitsInCurrentBlock; |
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52 |
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53 /* vectors (not to be allocated) */ |
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54 WORD16 resync_sequence[RESYNC_SEQ_LENGTH]; |
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55 |
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56 #if (NUM_MUTE_ROWS>0) |
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57 WORD16 mutePositions[intlvB*NUM_MUTE_ROWS]; |
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58 #else |
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59 WORD16 mutePositions[1]; |
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60 #endif |
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61 |
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62 fifo_state_t fifo_state; |
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63 fifo_state_t octet_fifo_state; |
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64 interleaver_state_t diag_int_state; |
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65 conv_encoder_t conv_enc_state; |
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66 } tx_state_t; |
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67 |
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68 |
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69 |
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70 /***********************************************************************/ |
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71 /* init_ctm_transmitter() */ |
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72 /* ********************** */ |
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73 /* Initialization of the CTM Transmitter */ |
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74 /* */ |
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75 /* output vaiables: */ |
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76 /* tx_state : pointer to a variable of tx_state_t containing the */ |
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77 /* initialized states of the receiver */ |
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78 /***********************************************************************/ |
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79 |
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80 void init_ctm_transmitter(tx_state_t* tx_state); |
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81 /* |
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82 *********************************************************************** |
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83 * Shutdown_ctm_transmitter() * |
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84 * ********************** * |
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85 * Shutdown of the Cellular Text Telephone Modem transmitter and * |
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86 * deallocate memory used by the CTM Tx buffers. * |
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87 * * |
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88 * Input variables: * |
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89 * tx_state : pointer to a variable of tx_state_t containing the * |
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90 * initialized states of the transmitter. * |
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91 *********************************************************************** |
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92 */ |
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93 void Shutdown_ctm_transmitter(tx_state_t* tx_state); |
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94 |
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95 /* |
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96 *********************************************************************** |
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97 * reset_ctm_transmitter() * |
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98 * ********************** * |
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99 * Reset of the Cellular Text Telephone Modem transmitter, state * |
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100 * machines and buffer pointers. * |
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101 * * |
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102 * Input variables: * |
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103 * tx_state : pointer to a variable of tx_state_t containing the * |
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104 * initialized states of the transmitter. * |
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105 *********************************************************************** |
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106 */ |
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107 void reset_ctm_transmitter(tx_state_t* tx_state); |
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108 |
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109 |
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110 /***********************************************************************/ |
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111 /* ctm_transmitter() */ |
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112 /* ***************** */ |
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113 /* Runs the Cellular Text Telephone Modem (CTM) Transmitter for a */ |
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114 /* block of 160 output samples, representing 8 gross bits. */ |
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115 /* The bits, which are modulated into tones, are taken from an */ |
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116 /* internal fifo buffer. If the fifo buffer is empty, zero-valued */ |
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117 /* samples are generated. The fifo buffer is filled with */ |
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118 /* channel-encoded and interlaeved bits, which are generated */ |
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119 /* internally by coding the actual input character. With each call of */ |
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120 /* this function one or less input characters can be coded. If there */ |
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121 /* is no character to for transmission, one of the following code has */ |
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122 /* be used: */ |
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123 /* - 0xFFFF: indicates that there is no character to transmit and */ |
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124 /* that the transmitter should stay in idle mode, if it is */ |
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125 /* currently already in idle mode. If the transmitter is */ |
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126 /* NOT in idle mode, it might generate <IDLE> symbols in */ |
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127 /* to keep an active burst running. The CTM burst is */ |
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128 /* terminated if five <IDLE> symbols have been generated */ |
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129 /* consecutevely. */ |
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130 /* */ |
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131 /* - 0xFFFE: although there is no character to transmit, a CTM burst */ |
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132 /* is initiated in order to signalize to the far-end side */ |
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133 /* that CTM is supported. The burst starts with the <IDLE> */ |
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134 /* symbol and will be contiued with <IDLE> symbols if there */ |
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135 /* are no regular characters handed over during the next */ |
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136 /* calls of this function. The CTM burst is terminated if */ |
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137 /* five <IDLE> symbols have been transmitted consecutevely. */ |
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138 /* */ |
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parents:
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139 /* In order to avoid an overflow of the internal fifo buffer, the */ |
4e78acac3d88
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parents:
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140 /* variable *ptrNumBitsStillToModulate should be checked before */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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141 /* calling this function. */ |
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parents:
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142 /* */ |
4e78acac3d88
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parents:
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143 /* input variables: */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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144 /* ucsCode UCS code of the character */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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145 /* or one of the codes 0xFFFF or 0xFFFE */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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146 /* sineOutput must be false in regular mode; if true, */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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147 /* a pure sine output signal is generated */ |
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parents:
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148 /* output variables: */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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149 /* txToneVec output signal (vector of 160 samples) */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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150 /* input/output variables: */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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151 /* tx_state pointer to the variable containing the */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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152 /* transmitter states */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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153 /***********************************************************************/ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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154 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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155 void ctm_transmitter(UWORD16 ucsCode, |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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156 fifo_state_t* ctmCodeOutputVec, |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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157 tx_state_t* tx_state ); |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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158 |
4e78acac3d88
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parents:
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159 #endif |