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annotate packages/io/serial/current/include/serialio.h @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents 6512add4f5d6
children 0c2b7be0d798
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1 #ifndef CYGONCE_SERIALIO_H
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2 #define CYGONCE_SERIALIO_H
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3 // ====================================================================
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4 //
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5 // serialio.h
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6 //
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7 // Device I/O
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8 //
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9 // ====================================================================
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10 //####COPYRIGHTBEGIN####
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11 //
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12 // -------------------------------------------
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13 // The contents of this file are subject to the Red Hat eCos Public License
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14 // Version 1.1 (the "License"); you may not use this file except in
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15 // compliance with the License. You may obtain a copy of the License at
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16 // http://www.redhat.com/
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17 //
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18 // Software distributed under the License is distributed on an "AS IS"
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19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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20 // License for the specific language governing rights and limitations under
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21 // the License.
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22 //
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23 // The Original Code is eCos - Embedded Configurable Operating System,
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24 // released September 30, 1998.
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25 //
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26 // The Initial Developer of the Original Code is Red Hat.
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27 // Portions created by Red Hat are
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28 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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29 // All Rights Reserved.
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30 // -------------------------------------------
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31 //
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32 //####COPYRIGHTEND####
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33 // ====================================================================
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34 //#####DESCRIPTIONBEGIN####
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35 //
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36 // Author(s): gthomas
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37 // Contributors: gthomas
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38 // Date: 1999-02-04
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39 // Purpose: Special support for serial I/O devices
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40 // Description:
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 // ====================================================================
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45
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46 // This file contains the user-level visible I/O interfaces
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47
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48 #include <pkgconf/hal.h>
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49 #include <cyg/infra/cyg_type.h>
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50 #include <cyg/io/config_keys.h>
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51
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52 #ifdef __cplusplus
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53 extern "C" {
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54 #endif
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55
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56 // Supported baud rates
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57 typedef enum {
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58 CYGNUM_SERIAL_BAUD_50 = 1,
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59 CYGNUM_SERIAL_BAUD_75,
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60 CYGNUM_SERIAL_BAUD_110,
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61 CYGNUM_SERIAL_BAUD_134_5,
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62 CYGNUM_SERIAL_BAUD_150,
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63 CYGNUM_SERIAL_BAUD_200,
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64 CYGNUM_SERIAL_BAUD_300,
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65 CYGNUM_SERIAL_BAUD_600,
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66 CYGNUM_SERIAL_BAUD_1200,
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67 CYGNUM_SERIAL_BAUD_1800,
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68 CYGNUM_SERIAL_BAUD_2400,
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69 CYGNUM_SERIAL_BAUD_3600,
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70 CYGNUM_SERIAL_BAUD_4800,
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71 CYGNUM_SERIAL_BAUD_7200,
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72 CYGNUM_SERIAL_BAUD_9600,
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73 CYGNUM_SERIAL_BAUD_14400,
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74 CYGNUM_SERIAL_BAUD_19200,
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75 CYGNUM_SERIAL_BAUD_38400,
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76 CYGNUM_SERIAL_BAUD_57600,
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77 CYGNUM_SERIAL_BAUD_115200,
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78 CYGNUM_SERIAL_BAUD_230400
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79 } cyg_serial_baud_rate_t;
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80 #define CYGNUM_SERIAL_BAUD_MIN CYGNUM_SERIAL_BAUD_50
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81 #define CYGNUM_SERIAL_BAUD_MAX CYGNUM_SERIAL_BAUD_230400
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82
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83 // Note: two levels of macro are required to get proper expansion.
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84 #define _CYG_SERIAL_BAUD_RATE(n) CYGNUM_SERIAL_BAUD_##n
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85 #define CYG_SERIAL_BAUD_RATE(n) _CYG_SERIAL_BAUD_RATE(n)
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86
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87 // Stop bit selections
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88 typedef enum {
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89 CYGNUM_SERIAL_STOP_1 = 1,
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90 CYGNUM_SERIAL_STOP_1_5,
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91 CYGNUM_SERIAL_STOP_2
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92 } cyg_serial_stop_bits_t;
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93
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94 // Parity modes
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95 typedef enum {
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96 CYGNUM_SERIAL_PARITY_NONE = 0,
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97 CYGNUM_SERIAL_PARITY_EVEN,
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98 CYGNUM_SERIAL_PARITY_ODD,
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99 CYGNUM_SERIAL_PARITY_MARK,
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100 CYGNUM_SERIAL_PARITY_SPACE
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101 } cyg_serial_parity_t;
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102
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103 // Word length
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104 typedef enum {
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105 CYGNUM_SERIAL_WORD_LENGTH_5 = 5,
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106 CYGNUM_SERIAL_WORD_LENGTH_6,
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107 CYGNUM_SERIAL_WORD_LENGTH_7,
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108 CYGNUM_SERIAL_WORD_LENGTH_8
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109 } cyg_serial_word_length_t;
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110
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111 typedef struct {
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112 cyg_serial_baud_rate_t baud;
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113 cyg_serial_stop_bits_t stop;
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114 cyg_serial_parity_t parity;
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115 cyg_serial_word_length_t word_length;
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116 cyg_uint32 flags;
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117 } cyg_serial_info_t;
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118
115
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119 // cyg_serial_info_t flags
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120 #define CYGNUM_SERIAL_FLOW_NONE (0)
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121 // receive flow control, send xon/xoff when necessary:
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122 #define CYGNUM_SERIAL_FLOW_XONXOFF_RX (1<<0)
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123 // transmit flow control, act on received xon/xoff:
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124 #define CYGNUM_SERIAL_FLOW_XONXOFF_TX (1<<1)
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125 // receive flow control, send RTS when necessary:
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126 #define CYGNUM_SERIAL_FLOW_RTSCTS_RX (1<<2)
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127 // transmit flow control, act when not CTS:
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128 #define CYGNUM_SERIAL_FLOW_RTSCTS_TX (1<<3)
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129 // receive flow control, send DTR when necessary:
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130 #define CYGNUM_SERIAL_FLOW_DSRDTR_RX (1<<4)
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131 // transmit flow control, act when not DSR:
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132 #define CYGNUM_SERIAL_FLOW_DSRDTR_TX (1<<5)
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133
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134 // arguments for CYG_IO_SET_CONFIG_SERIAL_FLOW_CONTROL_FORCE
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135 #define CYGNUM_SERIAL_FLOW_THROTTLE_RX 0
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136 #define CYGNUM_SERIAL_FLOW_RESTART_RX 1
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137 #define CYGNUM_SERIAL_FLOW_THROTTLE_TX 2
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138 #define CYGNUM_SERIAL_FLOW_RESTART_TX 3
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139
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140 // arguments for CYG_IO_SET_CONFIG_SERIAL_HW_RX_FLOW_THROTTLE
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141 #define CYGNUM_SERIAL_FLOW_HW_UNTHROTTLE 0
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142 #define CYGNUM_SERIAL_FLOW_HW_THROTTLE 0
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143 #define CYGNUM_SERIAL_FLOW_HW_UNTHROTTLE 0
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144
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145 typedef struct {
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146 cyg_int32 rx_bufsize;
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147 cyg_int32 rx_count;
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148 cyg_int32 tx_bufsize;
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149 cyg_int32 tx_count;
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150 } cyg_serial_buf_info_t;
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151
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152 #define CYG_SERIAL_INFO_INIT(_baud,_stop,_parity,_word_length,_flags) \
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153 { _baud, _stop, _parity, _word_length, _flags}
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154
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155 #ifdef CYGOPT_IO_SERIAL_SUPPORT_LINE_STATUS
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156
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157 # define CYGNUM_SERIAL_STATUS_FLOW 0
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158 # define CYGNUM_SERIAL_STATUS_BREAK 1
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159 # define CYGNUM_SERIAL_STATUS_FRAMEERR 2
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160 # define CYGNUM_SERIAL_STATUS_PARITYERR 3
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161 # define CYGNUM_SERIAL_STATUS_OVERRUNERR 4
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162 # define CYGNUM_SERIAL_STATUS_CARRIERDETECT 5
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163 # define CYGNUM_SERIAL_STATUS_RINGINDICATOR 6
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164
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165 typedef struct {
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166 cyg_uint32 which; // one of CYGNUM_SERIAL_STATUS_* above
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167 cyg_uint32 value; // and its value
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168 } cyg_serial_line_status_t;
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169
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170 typedef void (*cyg_serial_line_status_callback_fn_t)(
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171 cyg_serial_line_status_t *s,
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172 CYG_ADDRWORD priv );
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173 typedef struct {
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174 cyg_serial_line_status_callback_fn_t fn;
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175 CYG_ADDRWORD priv;
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176 } cyg_serial_line_status_callback_t;
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177
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178 #endif // ifdef CYGOPT_IO_SERIAL_SUPPORT_LINE_STATUS
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179
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180 // Default configuration
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181 #define CYG_SERIAL_BAUD_DEFAULT CYGNUM_SERIAL_BAUD_38400
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182 #define CYG_SERIAL_STOP_DEFAULT CYGNUM_SERIAL_STOP_1
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183 #define CYG_SERIAL_PARITY_DEFAULT CYGNUM_SERIAL_PARITY_NONE
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184 #define CYG_SERIAL_WORD_LENGTH_DEFAULT CYGNUM_SERIAL_WORD_LENGTH_8
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185 #define CYG_SERIAL_FLAGS_DEFAULT 0
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186
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187 #ifdef CYGDAT_IO_SERIAL_FLOW_CONTROL_DEFAULT_XONXOFF
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188 # define CYG_SERIAL_FLAGS_DEFAULT CYG_SERIAL_FLOW_XONXOFF
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189 #elif defined(CYGDAT_IO_SERIAL_FLOW_CONTROL_DEFAULT_RTSCTS)
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190 # define CYG_SERIAL_FLAGS_DEFAULT CYG_SERIAL_FLOW_RTSCTS
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191 #elif defined(CYGDAT_IO_SERIAL_FLOW_CONTROL_DEFAULT_DSRDTR)
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192 # define CYG_SERIAL_FLAGS_DEFAULT CYG_SERIAL_FLOW_DSRDTR
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193 #else
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194 # define CYG_SERIAL_FLAGS_DEFAULT 0
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195 #endif
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196
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197 #ifdef __cplusplus
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198 }
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199 #endif
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200
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201 #endif /* CYGONCE_SERIALIO_H */
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202 /* EOF serialio.h */