1 | /* $Id: VBoxMouse.cpp 62526 2016-07-22 19:18:03Z vboxsync $ */
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2 | /** @file
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3 | * VBoxMouse; input_server add-on - Haiku Guest Additions, implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2012-2016 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 | /*
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19 | * This code is based on:
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20 | *
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21 | * VirtualBox Guest Additions for Haiku.
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22 | * Copyright (c) 2011 Mike Smith <[email protected]>
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23 | * François Revol <[email protected]>
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24 | *
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25 | * Permission is hereby granted, free of charge, to any person
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26 | * obtaining a copy of this software and associated documentation
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27 | * files (the "Software"), to deal in the Software without
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28 | * restriction, including without limitation the rights to use,
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29 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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30 | * copies of the Software, and to permit persons to whom the
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31 | * Software is furnished to do so, subject to the following
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32 | * conditions:
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33 | *
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34 | * The above copyright notice and this permission notice shall be
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35 | * included in all copies or substantial portions of the Software.
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36 | *
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37 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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38 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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39 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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40 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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41 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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42 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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43 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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44 | * OTHER DEALINGS IN THE SOFTWARE.
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45 | */
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46 |
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47 | #include <errno.h>
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48 | #include <stdio.h>
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49 | #include <stdlib.h>
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50 | #include <sys/time.h>
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51 | #include <Clipboard.h>
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52 | #include <Debug.h>
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53 | #include <Message.h>
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54 | #include <String.h>
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55 |
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56 | #include "VBoxMouse.h"
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57 | #include <VBox/VBoxGuest.h> /** @todo use the VbglR3 interface! */
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58 | #include <VBox/VBoxGuestLib.h>
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59 | #include <VBoxGuestInternal.h>
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60 | #include <VBox/VMMDev.h>
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61 | #include <VBox/log.h>
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62 | #include <iprt/err.h>
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63 |
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64 | /* Export as global symbol with C linkage, RTDECL is necessary. */
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65 | RTDECL(BInputServerDevice *)
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66 | instantiate_input_device()
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67 | {
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68 | return new VBoxMouse();
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69 | }
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70 |
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71 |
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72 | static inline int vboxMouseAcquire()
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73 | {
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74 | uint32_t fFeatures = 0;
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75 | int rc = VbglR3GetMouseStatus(&fFeatures, NULL, NULL);
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76 | if (RT_SUCCESS(rc))
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77 | {
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78 | rc = VbglR3SetMouseStatus(fFeatures | VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE | VMMDEV_MOUSE_NEW_PROTOCOL);
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79 | if (RT_FAILURE(rc))
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80 | LogRel(("VbglR3SetMouseStatus failed. rc=%d\n", rc));
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81 | }
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82 | else
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83 | LogRel(("VbglR3GetMouseStatus failed. rc=%d\n", rc));
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84 | return rc;
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85 | }
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86 |
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87 |
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88 | static inline int vboxMouseRelease()
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89 | {
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90 | uint32_t fFeatures = 0;
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91 | int rc = VbglR3GetMouseStatus(&fFeatures, NULL, NULL);
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92 | if (RT_SUCCESS(rc))
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93 | {
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94 | rc = VbglR3SetMouseStatus(fFeatures & ~VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE & ~VMMDEV_MOUSE_NEW_PROTOCOL);
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95 | if (RT_FAILURE(rc))
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96 | LogRel(("VbglR3SetMouseStatus failed. rc=%d\n", rc));
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97 | }
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98 | else
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99 | LogRel(("VbglR3GetMouseStatus failed. rc=%d\n", rc));
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100 | return rc;
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101 | }
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102 |
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103 |
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104 | VBoxMouse::VBoxMouse()
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105 | : BInputServerDevice(),
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106 | fDriverFD(-1),
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107 | fServiceThreadID(-1),
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108 | fExiting(false)
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109 | {
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110 | }
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111 |
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112 |
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113 | VBoxMouse::~VBoxMouse()
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114 | {
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115 | }
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116 |
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117 |
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118 | status_t VBoxMouse::InitCheck()
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119 | {
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120 | int rc = VbglR3Init();
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121 | if (!RT_SUCCESS(rc))
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122 | return ENXIO;
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123 |
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124 | input_device_ref device = { (char *)"VBoxMouse", B_POINTING_DEVICE, (void *)this };
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125 | input_device_ref *deviceList[2] = { &device, NULL };
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126 | RegisterDevices(deviceList);
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127 |
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128 | return B_OK;
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129 | }
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130 |
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131 |
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132 | status_t VBoxMouse::SystemShuttingDown()
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133 | {
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134 | VbglR3Term();
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135 |
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136 | return B_OK;
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137 | }
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138 |
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139 |
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140 | status_t VBoxMouse::Start(const char *device, void *cookie)
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141 | {
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142 | #if 0
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143 | status_t err;
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144 | int rc;
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145 | uint32_t fFeatures = 0;
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146 | Log(("VBoxMouse::%s()\n", __FUNCTION__));
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147 |
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148 | rc = VbglR3GetMouseStatus(&fFeatures, NULL, NULL);
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149 | if (RT_SUCCESS(rc))
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150 | rc = VbglR3SetMouseStatus(fFeatures
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151 | | VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE
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152 | | VMMDEV_MOUSE_NEW_PROTOCOL);
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153 | if (!RT_SUCCESS(rc))
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154 | {
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155 | LogRel(("VBoxMouse: Error switching guest mouse into absolute mode: %d\n", rc));
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156 | return B_DEVICE_NOT_FOUND;
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157 | }
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158 |
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159 | err = fServiceThreadID = spawn_thread(_ServiceThreadNub,
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160 | "VBoxMouse", B_NORMAL_PRIORITY, this);
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161 | if (err >= B_OK)
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162 | {
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163 | resume_thread(fServiceThreadID);
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164 | return B_OK;
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165 | }
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166 | else
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167 | LogRel(("VBoxMouse: Error starting service thread: 0x%08lx\n",
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168 | err));
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169 |
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170 | // release the mouse
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171 | rc = VbglR3GetMouseStatus(&fFeatures, NULL, NULL);
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172 | if (RT_SUCCESS(rc))
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173 | rc = VbglR3SetMouseStatus(fFeatures
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174 | & ~VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE
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175 | & ~VMMDEV_MOUSE_NEW_PROTOCOL);
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176 |
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177 | return B_ERROR;
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178 | #endif
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179 |
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180 | status_t err = B_OK;
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181 | int rc;
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182 | uint32_t fFeatures = 0;
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183 | LogFlowFunc(("device=%s cookie=%p\n", device, cookie));
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184 |
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185 | rc = vboxMouseAcquire();
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186 | if (RT_SUCCESS(rc))
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187 | {
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188 | err = fServiceThreadID = spawn_thread(_ServiceThreadNub, "VBoxMouse", B_NORMAL_PRIORITY, this);
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189 | if (err >= B_OK)
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190 | {
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191 | resume_thread(fServiceThreadID);
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192 | return B_OK;
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193 | }
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194 | else
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195 | LogRel(("VBoxMouse::Start Error starting service thread: 0x%08lx\n", err));
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196 |
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197 | vboxMouseRelease();
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198 | err = B_ERROR;
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199 | }
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200 | else
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201 | {
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202 | LogRel(("VBoxMouse::Start vboxMouseAcquire failed. rc=%d\n", rc));
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203 | err = B_DEVICE_NOT_FOUND;
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204 | }
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205 |
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206 | return err;
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207 | }
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208 |
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209 |
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210 | status_t VBoxMouse::Stop(const char *device, void *cookie)
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211 | {
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212 | status_t status;
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213 | int rc;
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214 | uint32_t fFeatures = 0;
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215 | Log(("VBoxMouse::%s()\n", __FUNCTION__));
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216 |
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217 | fExiting = true;
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218 |
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219 | vboxMouseRelease();
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220 |
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221 | close(fDriverFD);
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222 | fDriverFD = -1;
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223 | //XXX WTF ?
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224 | suspend_thread(fServiceThreadID);
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225 | resume_thread(fServiceThreadID);
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226 | wait_for_thread(fServiceThreadID, &status);
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227 | fServiceThreadID = -1;
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228 | fExiting = false;
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229 | return B_OK;
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230 | }
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231 |
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232 |
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233 | status_t VBoxMouse::Control(const char *device, void *cookie, uint32 code, BMessage *message)
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234 | {
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235 | switch (code)
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236 | {
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237 | case B_MOUSE_SPEED_CHANGED:
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238 | case B_CLICK_SPEED_CHANGED:
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239 | case B_MOUSE_ACCELERATION_CHANGED:
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240 | default:
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241 | return BInputServerDevice::Control(device, cookie, code, message);
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242 | }
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243 | return B_OK;
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244 | }
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245 |
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246 |
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247 | status_t VBoxMouse::_ServiceThreadNub(void *_this)
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248 | {
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249 | VBoxMouse *service = (VBoxMouse *)_this;
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250 | return service->_ServiceThread();
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251 | }
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252 |
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253 |
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254 | status_t VBoxMouse::_ServiceThread()
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255 | {
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256 | Log(("VBoxMouse::%s()\n", __FUNCTION__));
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257 |
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258 | fDriverFD = open(VBOXGUEST_DEVICE_NAME, O_RDWR);
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259 | if (fDriverFD < 0)
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260 | return ENXIO;
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261 |
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262 | /* The thread waits for incoming messages from the host. */
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263 | while (!fExiting)
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264 | {
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265 | uint32_t cx, cy, fFeatures;
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266 | int rc;
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267 |
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268 | fd_set readSet, writeSet, errorSet;
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269 | FD_ZERO(&readSet);
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270 | FD_ZERO(&writeSet);
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271 | FD_ZERO(&errorSet);
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272 | FD_SET(fDriverFD, &readSet);
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273 | if (fDriverFD < 0)
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274 | break;
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275 | rc = select(fDriverFD + 1, &readSet, &writeSet, &errorSet, NULL);
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276 | if (rc < 0)
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277 | {
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278 | if (errno == EINTR || errno == EAGAIN)
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279 | continue;
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280 | break;
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281 | }
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282 |
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283 | rc = VbglR3GetMouseStatus(&fFeatures, &cx, &cy);
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284 | if ( RT_SUCCESS(rc)
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285 | && (fFeatures & VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE))
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286 | {
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287 | float x = cx * 1.0 / 65535;
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288 | float y = cy * 1.0 / 65535;
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289 |
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290 | _debugPrintf("VBoxMouse: at %d,%d %f,%f\n", cx, cy, x, y);
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291 |
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292 | /* Send absolute movement */
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293 | bigtime_t now = system_time();
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294 | BMessage *event = new BMessage(B_MOUSE_MOVED);
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295 | event->AddInt64("when", now);
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296 | event->AddFloat("x", x);
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297 | event->AddFloat("y", y);
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298 | event->AddFloat("be:tablet_x", x);
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299 | event->AddFloat("be:tablet_y", y);
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300 | //event->PrintToStream();
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301 | EnqueueMessage(event);
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302 |
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303 | //LogRelFlow(("processed host event rc = %d\n", rc));
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304 | }
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305 | }
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306 | return 0;
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307 | }
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308 |
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