1 | # |
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2 | # RTEMS Tools Project (http://www.rtems.org/) |
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3 | # Copyright 2013-2014 Chris Johns (chrisj@rtems.org) |
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4 | # All rights reserved. |
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5 | # |
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6 | # This file is part of the RTEMS Tools package in 'rtems-tools'. |
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7 | # |
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8 | # Redistribution and use in source and binary forms, with or without |
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9 | # modification, are permitted provided that the following conditions are met: |
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10 | # |
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11 | # 1. Redistributions of source code must retain the above copyright notice, |
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12 | # this list of conditions and the following disclaimer. |
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13 | # |
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14 | # 2. Redistributions in binary form must reproduce the above copyright notice, |
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15 | # this list of conditions and the following disclaimer in the documentation |
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16 | # and/or other materials provided with the distribution. |
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17 | # |
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18 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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19 | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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20 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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21 | # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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22 | # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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23 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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24 | # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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25 | # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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26 | # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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27 | # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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28 | # POSSIBILITY OF SUCH DAMAGE. |
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29 | # |
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30 | |
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31 | # |
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32 | # RTEMS Testing Consoles |
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33 | # |
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34 | |
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35 | import fcntl |
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36 | import os |
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37 | import sys |
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38 | import termios |
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39 | |
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40 | from rtemstoolkit import error |
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41 | from rtemstoolkit import host |
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42 | from rtemstoolkit import path |
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43 | |
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44 | def save(): |
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45 | if not host.is_windows: |
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46 | try: |
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47 | sin = termios.tcgetattr(sys.stdin) |
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48 | sout = termios.tcgetattr(sys.stdout) |
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49 | serr = termios.tcgetattr(sys.stderr) |
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50 | return sin, sout, serr |
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51 | except: |
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52 | pass |
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53 | return None |
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54 | |
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55 | def restore(attributes): |
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56 | if attributes is not None: |
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57 | termios.tcsetattr(sys.stdin, termios.TCSANOW, attributes[0]) |
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58 | termios.tcsetattr(sys.stdout, termios.TCSANOW, attributes[1]) |
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59 | termios.tcsetattr(sys.stderr, termios.TCSANOW, attributes[2]) |
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60 | |
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61 | class tty: |
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62 | |
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63 | raw = 'B115200,~BRKINT,IGNBRK,IGNCR,~ICANON,~ISIG,~IEXTEN,~ECHO,CLOCAL,~CRTSCTS' |
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64 | |
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65 | def __init__(self, dev): |
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66 | if host.is_windows: |
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67 | raise error.general('termios not support on host') |
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68 | self.dev = dev |
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69 | self.default_attr = None |
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70 | self.fd = None |
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71 | self.if_on = False |
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72 | if host.is_windows: |
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73 | raise error.general('TTY consoles not supported on Windows.') |
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74 | if not path.exists(dev): |
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75 | raise error.general('dev not found: %s' % (dev)) |
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76 | try: |
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77 | self.fd = open(dev, 'rw') |
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78 | except IOError as ioe: |
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79 | raise error.general('opening tty dev: %s: %s' % (dev, ioe)) |
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80 | except: |
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81 | raise error.general('opening tty dev: %s: unknown' % (dev)) |
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82 | try: |
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83 | self.default_attr = termios.tcgetattr(self.fd) |
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84 | except: |
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85 | close(self.fd) |
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86 | raise error.general('cannot get termios attrs: %s' % (dev)) |
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87 | try: |
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88 | fcntl.fcntl(self.fd, fcntl.F_SETFL, |
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89 | fcntl.fcntl(self.fd, fcntl.F_GETFL) | os.O_NONBLOCK) |
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90 | except: |
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91 | close(self.fd) |
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92 | raise error.general('cannot make tty non-blocking: %s' % (dev)) |
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93 | self.attr = self.default_attr |
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94 | |
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95 | def __del__(self): |
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96 | if self.fd and self.default_attr: |
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97 | try: |
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98 | fcntl.fcntl(self.fd, fcntl.F_SETFL, |
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99 | fcntl.fcntl(self.fd, fcntl.F_GETFL) & ~os.O_NONBLOCK) |
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100 | self.fd.close() |
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101 | except: |
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102 | pass |
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103 | |
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104 | def __str__(self): |
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105 | def _input(attr): |
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106 | s = '' |
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107 | if attr & termios.IGNBRK: |
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108 | s += ' IGNBRK' |
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109 | if attr & termios.BRKINT: |
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110 | s += ' BRKINT' |
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111 | if attr & termios.IGNPAR: |
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112 | s += ' IGNPAR' |
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113 | if attr & termios.PARMRK: |
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114 | s += ' PARMRK' |
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115 | if attr & termios.INPCK: |
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116 | s += ' INPCK' |
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117 | if attr & termios.ISTRIP: |
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118 | s += ' ISTRIP' |
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119 | if attr & termios.INLCR: |
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120 | s += ' INLCR' |
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121 | if attr & termios.IGNCR: |
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122 | s += ' IGNCR' |
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123 | if attr & termios.IXON: |
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124 | s += ' IXON' |
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125 | if attr & termios.IXOFF: |
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126 | s += ' IXOFF' |
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127 | if attr & termios.IXANY: |
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128 | s += ' IXANY' |
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129 | if attr & termios.IMAXBEL: |
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130 | s += ' IMAXBEL' |
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131 | return s |
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132 | |
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133 | def _output(attr): |
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134 | s = '' |
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135 | if attr & termios.OPOST: |
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136 | s += ' OPOST' |
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137 | if attr & termios.ONLCR: |
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138 | s += ' ONLCR' |
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139 | if attr & termios.OCRNL: |
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140 | s += ' OCRNL' |
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141 | if attr & termios.TABDLY: |
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142 | s += ' TABDLY' |
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143 | if attr & termios.TAB0: |
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144 | s += ' TAB0' |
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145 | if attr & termios.TAB3: |
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146 | s += ' TAB3' |
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147 | if attr & termios.ONOCR: |
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148 | s += ' ONOCR' |
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149 | if attr & termios.ONLRET: |
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150 | s += ' ONLRET' |
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151 | return s |
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152 | |
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153 | def _control(attr): |
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154 | s = '' |
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155 | if (attr & termios.CSIZE) == termios.CS5: |
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156 | s += ' CS5' |
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157 | if (attr & termios.CSIZE) == termios.CS6: |
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158 | s += ' CS6' |
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159 | if (attr & termios.CSIZE) == termios.CS7: |
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160 | s += ' CS7' |
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161 | if (attr & termios.CSIZE) == termios.CS8: |
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162 | s += ' CS8' |
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163 | if attr & termios.CSTOPB: |
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164 | s += ' CSTOPB' |
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165 | if attr & termios.CREAD: |
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166 | s += ' CREAD' |
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167 | if attr & termios.PARENB: |
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168 | s += ' PARENB' |
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169 | if attr & termios.PARODD: |
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170 | s += ' PARODD' |
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171 | if attr & termios.HUPCL: |
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172 | s += ' HUPCL' |
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173 | if attr & termios.CLOCAL: |
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174 | s += ' CLOCAL' |
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175 | if attr & termios.CRTSCTS: |
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176 | s += ' CRTSCTS' |
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177 | return s |
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178 | |
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179 | def _local(attr): |
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180 | s = '' |
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181 | if attr & termios.ECHOKE: |
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182 | s += ' ECHOKE' |
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183 | if attr & termios.ECHOE: |
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184 | s += ' ECHOE' |
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185 | if attr & termios.ECHO: |
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186 | s += ' ECHO' |
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187 | if attr & termios.ECHONL: |
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188 | s += ' ECHONL' |
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189 | if attr & termios.ECHOPRT: |
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190 | s += ' ECHOPRT' |
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191 | if attr & termios.ECHOCTL: |
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192 | s += ' ECHOCTL' |
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193 | if attr & termios.ISIG: |
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194 | s += ' ISIG' |
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195 | if attr & termios.ICANON: |
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196 | s += ' ICANON' |
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197 | if attr & termios.IEXTEN: |
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198 | s += ' IEXTEN' |
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199 | if attr & termios.TOSTOP: |
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200 | s += ' TOSTOP' |
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201 | if attr & termios.FLUSHO: |
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202 | s += ' FLUSHO' |
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203 | if attr & termios.PENDIN: |
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204 | s += ' PENDIN' |
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205 | if attr & termios.NOFLSH: |
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206 | s += ' NOFLSH' |
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207 | return s |
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208 | |
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209 | def _baudrate(attr): |
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210 | if attr == termios.B0: |
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211 | s = 'B0' |
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212 | elif attr == termios.B50: |
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213 | s = 'B50' |
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214 | elif attr == termios.B75: |
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215 | s = 'B75' |
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216 | elif attr == termios.B110: |
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217 | s = 'B110' |
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218 | elif attr == termios.B134: |
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219 | s = 'B134' |
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220 | elif attr == termios.B150: |
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221 | s = 'B150' |
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222 | elif attr == termios.B200: |
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223 | s = 'B200' |
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224 | elif attr == termios.B300: |
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225 | s = 'B300' |
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226 | elif attr == termios.B600: |
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227 | s = 'B600' |
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228 | elif attr == termios.B1800: |
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229 | s = 'B1800' |
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230 | elif attr == termios.B1200: |
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231 | s = 'B1200' |
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232 | elif attr == termios.B2400: |
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233 | s = 'B2400' |
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234 | elif attr == termios.B4800: |
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235 | s = 'B4800' |
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236 | elif attr == termios.B9600: |
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237 | s = 'B9600' |
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238 | elif attr == termios.B19200: |
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239 | s = 'B19200' |
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240 | elif attr == termios.B38400: |
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241 | s = 'B38400' |
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242 | elif attr == termios.B57600: |
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243 | s = 'B57600' |
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244 | elif attr == termios.B115200: |
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245 | s = 'B115200' |
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246 | elif attr == termios.B230400: |
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247 | s = 'B230400' |
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248 | elif attr == termios.B460800: |
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249 | s = 'B460800' |
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250 | else: |
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251 | s = 'unknown' |
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252 | return s |
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253 | |
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254 | if self.attr is None: |
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255 | return 'None' |
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256 | s = 'iflag: %s' % (_input(self.attr[0])) |
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257 | s += os.linesep + 'oflag: %s' % (_output(self.attr[1])) |
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258 | s += os.linesep + 'cflag: %s' % (_control(self.attr[2])) |
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259 | s += os.linesep + 'lflag: %s' % (_local(self.attr[3])) |
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260 | s += os.linesep + 'ispeed: %s' % (_baudrate(self.attr[4])) |
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261 | s += os.linesep + 'ospeed: %s' % (_baudrate(self.attr[5])) |
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262 | return s |
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263 | |
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264 | def _update(self): |
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265 | self.off() |
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266 | try: |
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267 | termios.tcflush(self.fd, termios.TCIOFLUSH) |
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268 | #attr = self.attr |
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269 | #attr[0] = termios.IGNPAR; |
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270 | #attr[1] = 0 |
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271 | #attr[2] = termios.CRTSCTS | termios.CS8 | termios.CREAD; |
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272 | #attr[3] = 0 |
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273 | #attr[6][termios.VMIN] = 1 |
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274 | #attr[6][termios.VTIME] = 2 |
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275 | #termios.tcsetattr(self.fd, termios.TCSANOW, attr) |
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276 | termios.tcsetattr(self.fd, termios.TCSANOW, self.attr) |
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277 | termios.tcflush(self.fd, termios.TCIOFLUSH) |
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278 | except: |
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279 | raise |
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280 | if self.is_on: |
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281 | self.on() |
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282 | |
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283 | def _baudrate_mask(self, flag): |
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284 | if flag == 'B0': |
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285 | mask = termios.B0 |
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286 | self.attr[5] = termios.B0 |
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287 | elif flag == 'B50': |
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288 | mask = termios.B50 |
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289 | elif flag == 'B75': |
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290 | mask = termios.B75 |
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291 | elif flag == 'B110': |
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292 | mask = termios.B110 |
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293 | elif flag == 'B134': |
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294 | mask = termios.B134 |
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295 | elif flag == 'B150': |
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296 | mask = termios.B150 |
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297 | elif flag == 'B200': |
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298 | mask = termios.B200 |
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299 | elif flag == 'B300': |
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300 | mask = termios.B300 |
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301 | elif flag == 'B600': |
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302 | mask = termios.B600 |
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303 | elif flag == 'B1800': |
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304 | mask = termios.B1800 |
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305 | elif flag == 'B1200': |
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306 | mask = termios.B1200 |
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307 | elif flag == 'B2400': |
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308 | mask = termios.B2400 |
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309 | elif flag == 'B4800': |
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310 | mask = termios.B4800 |
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311 | elif flag == 'B9600': |
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312 | mask = termios.B9600 |
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313 | elif flag == 'B19200': |
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314 | mask = termios.B19200 |
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315 | elif flag == 'B38400': |
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316 | mask = termios.B38400 |
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317 | elif flag == 'B57600': |
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318 | mask = termios.B57600 |
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319 | elif flag == 'B115200': |
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320 | mask = termios.B115200 |
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321 | elif flag == 'B230400': |
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322 | mask = termios.B230400 |
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323 | elif flag == 'B460800': |
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324 | mask = termios.B460800 |
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325 | else: |
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326 | mask = None |
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327 | return mask |
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328 | |
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329 | def _input_mask(self, flag): |
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330 | if flag == 'IGNBRK': |
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331 | mask = termios.IGNBRK |
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332 | elif flag == 'BRKINT': |
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333 | mask = termios.BRKINT |
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334 | elif flag == 'IGNPAR': |
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335 | mask = termios.IGNPAR |
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336 | elif flag == 'PARMRK': |
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337 | mask = termios.PARMRK |
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338 | elif flag == 'INPCK': |
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339 | mask = termios.INPCK |
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340 | elif flag == 'ISTRIP': |
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341 | mask = termios.ISTRIP |
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342 | elif flag == 'INLCR': |
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343 | mask = termios.INLCR |
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344 | elif flag == 'IGNCR': |
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345 | mask = termios.IGNCR |
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346 | elif flag == 'IXON': |
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347 | mask = termios.IXON |
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348 | elif flag == 'IXOFF': |
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349 | mask = termios.IXOFF |
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350 | elif flag == 'IXANY': |
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351 | mask = termios.IXANY |
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352 | elif flag == 'IMAXBEL': |
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353 | mask = termios.IMAXBEL |
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354 | else: |
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355 | mask = None |
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356 | return mask |
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357 | |
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358 | def _output_mask(self, flag): |
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359 | if flag == 'OPOST': |
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360 | mask = termios.OPOST |
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361 | elif flag == 'ONLCR': |
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362 | mask = termios.ONLCR |
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363 | elif flag == 'OCRNL': |
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364 | mask = termios.OCRNL |
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365 | elif flag == 'TABDLY': |
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366 | mask = termios.TABDLY |
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367 | elif flag == 'TAB0': |
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368 | mask = termios.TAB0 |
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369 | elif flag == 'TAB3': |
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370 | mask = termios.TAB3 |
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371 | elif flag == 'ONOCR': |
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372 | mask = termios.ONOCR |
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373 | elif flag == 'ONLRET': |
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374 | mask = termios.ONLRET |
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375 | else: |
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376 | mask = None |
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377 | return mask |
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378 | |
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379 | def _control_mask(self, flag): |
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380 | if flag == 'CSTOPB': |
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381 | mask = termios.CSTOPB |
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382 | elif flag == 'CREAD': |
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383 | mask = termios.CREAD |
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384 | elif flag == 'PARENB': |
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385 | mask = termios.PARENB |
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386 | elif flag == 'PARODD': |
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387 | mask = termios.PARODD |
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388 | elif flag == 'HUPCL': |
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389 | mask = termios.HUPCL |
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390 | elif flag == 'CLOCAL': |
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391 | mask = termios.CLOCAL |
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392 | elif flag == 'CRTSCTS': |
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393 | mask = termios.CRTSCTS |
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394 | else: |
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395 | mask = None |
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396 | return mask |
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397 | |
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398 | def _local_mask(self, flag): |
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399 | if flag == 'ECHOKE': |
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400 | mask = termios.ECHOKE |
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401 | elif flag == 'ECHOE': |
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402 | mask = termios.ECHOE |
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403 | elif flag == 'ECHO': |
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404 | mask = termios.ECHO |
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405 | elif flag == 'ECHONL': |
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406 | mask = termios.ECHONL |
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407 | elif flag == 'ECHOPRT': |
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408 | mask = termios.ECHOPRT |
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409 | elif flag == 'ECHOCTL': |
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410 | mask = termios.ECHOCTL |
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411 | elif flag == 'ISIG': |
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412 | mask = termios.ISIG |
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413 | elif flag == 'ICANON': |
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414 | mask = termios.ICANON |
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415 | elif flag == 'IEXTEN': |
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416 | mask = termios.IEXTEN |
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417 | elif flag == 'TOSTOP': |
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418 | mask = termios.TOSTOP |
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419 | elif flag == 'FLUSHO': |
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420 | mask = termios.FLUSHO |
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421 | elif flag == 'PENDIN': |
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422 | mask = termios.PENDIN |
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423 | elif flag == 'NOFLSH': |
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424 | mask = termios.NOFLSH |
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425 | else: |
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426 | mask = None |
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427 | return mask |
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428 | |
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429 | def _set(self, index, mask, state): |
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430 | if state: |
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431 | self.attr[index] = self.attr[index] | mask |
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432 | else: |
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433 | self.attr[index] = self.attr[index] & ~mask |
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434 | |
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435 | def off(self): |
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436 | if self.fd: |
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437 | try: |
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438 | termios.tcflow(self.fd, termios.TCOOFF) |
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439 | except: |
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440 | pass |
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441 | try: |
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442 | termios.tcflow(self.fd, termios.TCIOFF) |
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443 | except: |
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444 | pass |
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445 | self.is_on = False |
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446 | |
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447 | def on(self): |
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448 | if self.fd: |
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449 | try: |
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450 | termios.tcflow(self.fd, termios.TCOON) |
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451 | except: |
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452 | pass |
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453 | try: |
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454 | termios.tcflow(self.fd, termios.TCION) |
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455 | except: |
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456 | pass |
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457 | self.is_on = True |
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458 | |
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459 | def baudrate(self, flag): |
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460 | mask = self._baudrate_mask(flag) |
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461 | if mask: |
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462 | self.attr[4] = mask |
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463 | self.attr[5] = mask |
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464 | else: |
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465 | raise error.general('invalid setting: %s' % (flag)) |
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466 | self._update() |
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467 | |
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468 | def input(self, flag, on): |
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469 | mask = self._input_mask(flag) |
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470 | if mask is None: |
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471 | raise error.general('invalid input flag: %s' % (flag)) |
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472 | self._set(0, mask, on) |
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473 | self._update() |
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474 | |
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475 | def output(self, flag, on): |
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476 | mask = self._output_mask(flag) |
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477 | if mask is None: |
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478 | raise error.general('invalid output flag: %s' % (flag)) |
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479 | self._set(1, mask, on) |
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480 | self._update() |
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481 | |
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482 | def control(self, flag, on): |
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483 | mask = self._control_mask(flag) |
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484 | if mask is None: |
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485 | raise error.general('invalid control flag: %s' % (flag)) |
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486 | self._set(2, mask, on) |
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487 | self._update() |
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488 | |
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489 | def local(self, flag, on): |
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490 | mask = self._local_mask(flag) |
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491 | if mask is None: |
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492 | raise error.general('invalid local flag: %s' % (flag)) |
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493 | self._set(3, mask, on) |
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494 | self._update() |
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495 | |
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496 | def vmin(self, _vmin): |
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497 | self.attr[6][termios.VMIN] = _vmin |
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498 | |
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499 | def vtime(self, _vtime): |
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500 | self.attr[6][termios.VTIME] = _vtime |
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501 | |
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502 | def set(self, flags = None): |
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503 | if flags is None: |
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504 | flags = self.raw |
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505 | for f in flags.split(','): |
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506 | if len(f) < 2: |
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507 | raise error.general('invalid flag: %s' % (f)) |
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508 | if f[0] == '~': |
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509 | on = False |
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510 | flag = f[1:] |
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511 | else: |
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512 | on = True |
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513 | flag = f |
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514 | if f.startswith('VMIN'): |
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515 | vs = f.split('=') |
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516 | if len(vs) != 2: |
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517 | raise error.general('invalid vmin flag: %s' % (f)) |
---|
518 | try: |
---|
519 | _vmin = int(vs[1]) |
---|
520 | except: |
---|
521 | raise error.general('invalid vmin flag: %s' % (f)) |
---|
522 | self.vmin(_vmin) |
---|
523 | continue |
---|
524 | if f.startswith('VTIME'): |
---|
525 | vs = f.split('=') |
---|
526 | if len(vs) != 2: |
---|
527 | raise error.general('invalid vtime flag: %s' % (f)) |
---|
528 | try: |
---|
529 | _vtime = int(vs[1]) |
---|
530 | except: |
---|
531 | raise error.general('invalid vtime flag: %s' % (f)) |
---|
532 | self.vtime(_vtime) |
---|
533 | continue |
---|
534 | mask = self._baudrate_mask(flag) |
---|
535 | if mask: |
---|
536 | if not on: |
---|
537 | raise error.general('baudrates are not flags: %s' % (f)) |
---|
538 | self.attr[4] = mask |
---|
539 | self.attr[5] = mask |
---|
540 | continue |
---|
541 | mask = self._input_mask(flag) |
---|
542 | if mask: |
---|
543 | self._set(0, mask, on) |
---|
544 | continue |
---|
545 | mask = self._output_mask(flag) |
---|
546 | if mask: |
---|
547 | self._set(1, mask, on) |
---|
548 | continue |
---|
549 | mask = self._control_mask(flag) |
---|
550 | if mask: |
---|
551 | self._set(2, mask, on) |
---|
552 | continue |
---|
553 | mask = self._local_mask(flag) |
---|
554 | if mask: |
---|
555 | self._set(3, mask, on) |
---|
556 | continue |
---|
557 | raise error.general('unknown tty flag: %s' % (f)) |
---|
558 | self._update() |
---|
559 | |
---|
560 | def read(self): |
---|
561 | return self.fs.read() |
---|
562 | |
---|
563 | if __name__ == "__main__": |
---|
564 | if len(sys.argv) == 2: |
---|
565 | t = tty(sys.argv[1]) |
---|
566 | t.baudrate('B115200') |
---|
567 | t.input('BRKINT', False) |
---|
568 | t.input('IGNBRK', True) |
---|
569 | t.input('IGNCR', True) |
---|
570 | t.local('ICANON', False) |
---|
571 | t.local('ISIG', False) |
---|
572 | t.local('IEXTEN', False) |
---|
573 | t.local('ECHO', False) |
---|
574 | t.control('CLOCAL', True) |
---|
575 | t.control('CRTSCTS', False) |
---|
576 | t.vmin(1) |
---|
577 | t.vtime(2) |
---|
578 | print(t) |
---|
579 | t.set('B115200,~BRKINT,IGNBRK,IGNCR,~ICANON,~ISIG,~IEXTEN,~ECHO,CLOCAL,~CRTSCTS') |
---|
580 | print(t) |
---|
581 | t.on() |
---|
582 | while True: |
---|
583 | c = t.fd.read(1) |
---|
584 | sys.stdout.write(c) |
---|