1 | #!/usr/bin/python |
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2 | # |
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3 | # This program is free software; you can redistribute it and/or modify |
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4 | # it under the terms of the GNU General Public License as published by |
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5 | # the Free Software Foundation; either version 2 of the License, or |
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6 | # (at your option) any later version. |
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7 | # |
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8 | # This program is distributed in the hope that it will be useful, |
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9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 | # GNU Library General Public License for more details. |
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12 | # |
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13 | # You should have received a copy of the GNU General Public License |
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14 | # along with this program; if not, write to the Free Software |
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15 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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16 | # |
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17 | # Copyright 2003, 2004 Peter Backlund |
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18 | |
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19 | import ixf86config |
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20 | import string |
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21 | import os |
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22 | import sys |
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23 | |
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24 | if os.uname()[4] == "x86_64" : |
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25 | TOP_MOD_DIR = "/usr/lib64/xorg/modules" |
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26 | else: |
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27 | TOP_MOD_DIR = "/usr/lib/xorg/modules" |
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28 | |
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29 | # This will add an entry to ModulePath section, |
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30 | # with previous entries untouched. |
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31 | def addModulePath(files, newPathEntry): |
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32 | prevModPath = [] |
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33 | # Check for existing ModulePath |
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34 | if (files.module != None): |
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35 | prevModPath = string.split(files.module, ",") |
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36 | # First, add the default module dirs. We add the dirs in |
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37 | # reversed order, and reverse the list at the end. |
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38 | newModPath = [TOP_MOD_DIR] |
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39 | #newModPath.append(TOP_MOD_DIR + "/extensions") |
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40 | for i in range(len(prevModPath)): |
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41 | mp = prevModPath[i] |
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42 | # Remove trailing "/", in case the config file |
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43 | # has been hand-edited |
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44 | if mp[len(mp) - 1] == "/": |
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45 | mp = mp[:(len(mp) - 1)] |
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46 | # Add to new module path |
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47 | if not mp in newModPath and mp != (TOP_MOD_DIR + "/extensions"): |
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48 | newModPath.append(mp) |
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49 | # Add new path entry |
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50 | if not (TOP_MOD_DIR + newPathEntry) in newModPath: |
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51 | newModPath.append(TOP_MOD_DIR + newPathEntry) |
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52 | # Reverse list |
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53 | newModPath.reverse() |
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54 | files.module = string.join(newModPath, ",") |
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55 | |
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56 | # |
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57 | # Removes an entry in the ModulePath list. |
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58 | # |
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59 | def removeModulePath(files, modulePath): |
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60 | prevModPath = [] |
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61 | # Check for existing ModulePath |
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62 | if (files.module != None): |
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63 | prevModPath = string.split(files.module, ",") |
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64 | if (len(prevModPath) < 1): |
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65 | # ModulePath empty, do nothing. |
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66 | return |
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67 | newModPath = [] |
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68 | for i in range(len(prevModPath)): |
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69 | mp = prevModPath[i] |
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70 | # Remove trailing "/", in case the config file |
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71 | # has been hand-edited |
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72 | if mp[len(mp) - 1] == "/": |
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73 | mp = mp[:(len(mp) - 1)] |
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74 | if mp != (TOP_MOD_DIR + modulePath) and mp != (TOP_MOD_DIR + "/extensions"): |
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75 | newModPath.append(mp) |
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76 | files.module = string.join(newModPath, ",") |
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77 | |
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78 | # |
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79 | # Set driver to newDriver where |
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80 | # if driver is oldDriver |
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81 | # |
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82 | def toggleDriver(device, oldDriver, newDriver): |
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83 | for dev in device: |
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84 | if (dev.driver.lower() == oldDriver.lower()): |
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85 | dev.driver = newDriver |
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86 | |
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87 | def printError(err): |
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88 | print "Error:", err |
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89 | |
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90 | def printUsage(): |
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91 | print "Usage: nvidia-config-display [enable|disable]" |
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92 | |
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93 | # ------------ |
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94 | # Main section |
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95 | # ------------ |
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96 | |
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97 | xorgconf = "/etc/X11/xorg.conf" |
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98 | if os.access(xorgconf, os.F_OK): |
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99 | try: |
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100 | (xconfig, xconfigpath) = ixf86config.readConfigFile() |
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101 | except: |
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102 | pass |
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103 | elif os.access(xorgconf + ".dist", os.F_OK): |
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104 | import shutil |
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105 | shutil.copy(xorgconf + ".dist", xorgconf) |
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106 | try: |
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107 | (xconfig, xconfigpath) = ixf86config.readConfigFile() |
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108 | except: |
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109 | pass |
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110 | else: |
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111 | printError("Could not read X config file") |
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112 | sys.exit(1) |
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113 | |
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114 | # Check number of arguments |
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115 | if (len(sys.argv) == 2): |
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116 | arg = sys.argv[1] |
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117 | else: |
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118 | printError("Wrong number of arguments") |
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119 | printUsage() |
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120 | sys.exit(1) |
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121 | |
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122 | # Check value of argument |
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123 | if arg != "enable" and arg != "disable": |
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124 | printError("Invalid command") |
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125 | printUsage() |
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126 | sys.exit(1) |
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127 | |
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128 | # Backup original X config file to .backup-nvidia |
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129 | backup_file = None |
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130 | output_file = xconfigpath |
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131 | if output_file != None and os.access(output_file, os.F_OK): |
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132 | backup_file = output_file + ".backup-nvidia" |
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133 | try: |
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134 | os.rename(output_file, backup_file) |
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135 | except: |
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136 | printError("Cannot write backup file") |
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137 | sys.exit(1) |
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138 | else: |
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139 | printError("Cannot open X config file (missing or malformed)") |
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140 | sys.exit(1) |
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141 | try: |
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142 | if (arg == "enable"): |
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143 | # Enable nvidia driver: |
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144 | # Add nvidia module path and change driver to 'nvidia' |
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145 | addModulePath(xconfig.files, "/extensions/nvidia") |
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146 | toggleDriver(xconfig.device, "nv", "nvidia") |
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147 | elif (arg == "disable"): |
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148 | # Disable nvidia driver: |
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149 | # Remove nvidia module path and change driver to 'nv' |
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150 | removeModulePath(xconfig.files, "/extensions/nvidia") |
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151 | toggleDriver(xconfig.device, "nvidia", "nv") |
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152 | else: |
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153 | # This shouldn't happen, but we handle it anyway |
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154 | raise |
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155 | # Write new X config file |
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156 | xconfig.write(output_file) |
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157 | except: |
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158 | printError("Editing failed, restoring backup") |
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159 | try: |
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160 | # Something went wrong, restore backup |
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161 | os.rename(backup_file, output_file) |
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162 | except: |
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163 | printError("Failed to restore backup") |
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164 | |
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