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annotate src/uinput.rs @ 12:d43c31aff57c

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Split uinput helpers into another module.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sun, 01 Nov 2020 16:01:00 +0100
parents
children 478cf2a7d577
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12
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1 // Tablet emulator, for people who don’t own one
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2 // Copyright © 2020 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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3 //
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4 // This program is free software: you can redistribute it and/or modify
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5 // it under the terms of the GNU Affero General Public License as published by
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6 // the Free Software Foundation, either version 3 of the License, or
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7 // (at your option) any later version.
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8 //
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9 // This program is distributed in the hope that it will be useful,
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 // GNU Affero General Public License for more details.
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13 //
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14 // You should have received a copy of the GNU Affero General Public License
d43c31aff57c Split uinput helpers into another module.
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15 // along with this program. If not, see <https://www.gnu.org/licenses/>.
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16
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17 use std::fs::{File, OpenOptions};
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18 use crate::{MAX_X, MAX_Y};
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19 use input_linux::{
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20 sys::input_event, sys::timeval, AbsoluteAxis, AbsoluteInfo, AbsoluteInfoSetup, EventKind,
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21 InputId, InputProperty, Key, MiscKind, SynchronizeKind, UInputHandle,
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22 };
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23
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24 pub fn create_uinput_device() -> std::io::Result<UInputHandle<File>> {
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25 let file = OpenOptions::new().write(true).open("/dev/uinput")?;
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26 let dev = UInputHandle::new(file);
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27
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28 dev.set_evbit(EventKind::Synchronize)?;
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29 dev.set_evbit(EventKind::Key)?;
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30 dev.set_evbit(EventKind::Absolute)?;
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31 dev.set_evbit(EventKind::Misc)?;
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32 dev.set_keybit(Key::ButtonToolPen)?;
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33 dev.set_keybit(Key::ButtonToolRubber)?;
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34 dev.set_keybit(Key::ButtonToolBrush)?;
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35 dev.set_keybit(Key::ButtonToolPencil)?;
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36 dev.set_keybit(Key::ButtonToolAirbrush)?;
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37 dev.set_keybit(Key::ButtonTouch)?;
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38 dev.set_keybit(Key::ButtonStylus)?;
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39 dev.set_keybit(Key::ButtonStylus2)?;
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40 dev.set_keybit(Key::ButtonStylus3)?;
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41 dev.set_mscbit(MiscKind::Serial)?;
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42 dev.set_propbit(InputProperty::Direct)?;
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43
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44 dev.set_absbit(AbsoluteAxis::X)?;
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45 dev.set_absbit(AbsoluteAxis::Y)?;
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46 dev.set_absbit(AbsoluteAxis::Z)?;
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47 dev.set_absbit(AbsoluteAxis::Wheel)?;
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48 dev.set_absbit(AbsoluteAxis::Pressure)?;
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49 dev.set_absbit(AbsoluteAxis::Distance)?;
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50 dev.set_absbit(AbsoluteAxis::TiltX)?;
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51 dev.set_absbit(AbsoluteAxis::TiltY)?;
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52 dev.set_absbit(AbsoluteAxis::Misc)?;
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53
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54 let id = InputId {
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55 bustype: 3,
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56 vendor: 0x56a,
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57 product: 0x350,
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58 version: 0xb,
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59 };
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60
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61 let x = AbsoluteInfoSetup {
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62 axis: AbsoluteAxis::X,
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63 info: AbsoluteInfo {
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64 value: 0,
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66 maximum: MAX_X,
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69 resolution: 200,
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70 },
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71 };
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72 let y = AbsoluteInfoSetup {
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73 axis: AbsoluteAxis::Y,
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74 info: AbsoluteInfo {
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81 },
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82 };
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83 let z = AbsoluteInfoSetup {
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84 axis: AbsoluteAxis::Z,
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85 info: AbsoluteInfo {
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92 },
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93 };
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94 let wheel = AbsoluteInfoSetup {
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95 axis: AbsoluteAxis::Wheel,
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96 info: AbsoluteInfo {
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97 value: 0,
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103 },
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104 };
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105 let pressure = AbsoluteInfoSetup {
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106 axis: AbsoluteAxis::Pressure,
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107 info: AbsoluteInfo {
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114 },
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115 };
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116 let distance = AbsoluteInfoSetup {
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117 axis: AbsoluteAxis::Distance,
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118 info: AbsoluteInfo {
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119 value: 0,
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125 },
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126 };
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127 let tilt_x = AbsoluteInfoSetup {
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128 axis: AbsoluteAxis::TiltX,
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129 info: AbsoluteInfo {
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130 value: 0,
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131 minimum: -64,
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132 maximum: 63,
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133 fuzz: 0,
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136 },
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137 };
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138 let tilt_y = AbsoluteInfoSetup {
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139 axis: AbsoluteAxis::TiltY,
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140 info: AbsoluteInfo {
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141 value: 0,
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142 minimum: -64,
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143 maximum: 63,
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144 fuzz: 0,
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145 flat: 0,
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146 resolution: 57,
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147 },
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148 };
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149 let misc = AbsoluteInfoSetup {
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150 axis: AbsoluteAxis::Misc,
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151 info: AbsoluteInfo {
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152 value: 0,
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153 minimum: 0,
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154 maximum: 0,
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155 fuzz: 0,
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156 flat: 0,
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157 resolution: 0,
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158 },
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159 };
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160
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161 dev.create(
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162 &id,
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163 b"TabletEmu",
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164 0,
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165 &[x, y, z, wheel, pressure, distance, tilt_x, tilt_y, misc],
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166 )?;
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167 Ok(dev)
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168 }
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169
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170 fn input_event_new(type_: EventKind, code: u16, value: i32) -> input_event {
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171 input_event {
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172 time: timeval {
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173 tv_sec: 0,
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174 tv_usec: 0,
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175 },
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176 type_: type_ as u16,
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177 code,
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178 value,
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179 }
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180 }
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181
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182 pub fn input_axis_new(code: AbsoluteAxis, value: i32) -> input_event {
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183 input_event_new(EventKind::Absolute, code as u16, value)
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184 }
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185
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186 pub fn input_key_new(code: Key, value: i32) -> input_event {
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187 input_event_new(EventKind::Key, code as u16, value)
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188 }
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189
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190 pub fn input_misc_new(code: MiscKind, value: i32) -> input_event {
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191 input_event_new(EventKind::Misc, code as u16, value)
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192 }
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193
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194 pub fn input_synchronize_new(code: SynchronizeKind, value: i32) -> input_event {
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195 input_event_new(EventKind::Synchronize, code as u16, value)
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196 }