1 
2 /*
3  * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21  * OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * Except as contained in this notice, the name of the copyright holder(s)
24  * and author(s) shall not be used in advertising or otherwise to promote
25  * the sale, use or other dealings in this Software without prior written
26  * authorization from the copyright holder(s) and author(s).
27  */
28 
29 /*
30  * This file contains all the XFree86 global variables.
31  */
32 
33 #ifdef HAVE_XORG_CONFIG_H
34 #include <xorg-config.h>
35 #endif
36 
37 #include <X11/X.h>
38 #include "os.h"
39 #include "windowstr.h"
40 #include "propertyst.h"
41 #include "xf86.h"
42 #include "xf86Priv.h"
43 #include "xf86Parser.h"
44 #include "xf86Xinput.h"
45 #include "xf86InPriv.h"
46 #include "xf86Config.h"
47 
48 /* Globals that video drivers may access */
49 
50 DevPrivateKeyRec xf86CreateRootWindowKeyRec;
51 DevPrivateKeyRec xf86ScreenKeyRec;
52 
53 ScrnInfoPtr *xf86Screens = NULL;        /* List of ScrnInfos */
54 ScrnInfoPtr *xf86GPUScreens = NULL;        /* List of ScrnInfos */
55 
56 int xf86DRMMasterFd = -1;  /* Command line argument for DRM master file descriptor */
57 
58 const unsigned char byte_reversed[256] = {
59     0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
60     0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
61     0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
62     0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
63     0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
64     0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
65     0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
66     0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
67     0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
68     0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
69     0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
70     0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
71     0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
72     0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
73     0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
74     0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
75     0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
76     0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
77     0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
78     0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
79     0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
80     0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
81     0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
82     0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
83     0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
84     0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
85     0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
86     0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
87     0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
88     0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
89     0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
90     0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
91 };
92 
93 /* Globals that input drivers may access */
94 InputInfoPtr xf86InputDevs = NULL;
95 
96 /* Globals that video drivers may not access */
97 
98 xf86InfoRec xf86Info = {
99     .consoleFd = -1,
100     .vtno = -1,
101     .lastEventTime = -1,
102     .vtRequestsPending = FALSE,
103 #ifdef __sun
104     .vtPendingNum = -1,
105 #endif
106     .dontVTSwitch = FALSE,
107     .autoVTSwitch = TRUE,
108     .ShareVTs = FALSE,
109     .dontZap = FALSE,
110     .dontZoom = FALSE,
111     .currentScreen = NULL,
112 #ifdef CSRG_BASED
113     .consType = -1,
114 #endif
115     .allowMouseOpenFail = FALSE,
116     .vidModeEnabled = TRUE,
117     .vidModeAllowNonLocal = FALSE,
118     .miscModInDevEnabled = TRUE,
119     .miscModInDevAllowNonLocal = FALSE,
120     .pmFlag = TRUE,
121 #if defined(CONFIG_HAL) || defined(CONFIG_UDEV) || defined(CONFIG_WSCONS)
122     .forceInputDevices = FALSE,
123     .autoAddDevices = TRUE,
124     .autoEnableDevices = TRUE,
125 #else
126     .forceInputDevices = TRUE,
127     .autoAddDevices = FALSE,
128     .autoEnableDevices = FALSE,
129 #endif
130 #if defined(CONFIG_UDEV_KMS)
131     .autoAddGPU = TRUE,
132 #else
133     .autoAddGPU = FALSE,
134 #endif
135     .autoBindGPU = TRUE,
136 };
137 
138 const char *xf86ConfigFile = NULL;
139 const char *xf86ConfigDir = NULL;
140 const char *xf86ModulePath = DEFAULT_MODULE_PATH;
141 MessageType xf86ModPathFrom = X_DEFAULT;
142 const char *xf86LogFile = DEFAULT_LOGDIR "/" DEFAULT_LOGPREFIX;
143 MessageType xf86LogFileFrom = X_DEFAULT;
144 Bool xf86LogFileWasOpened = FALSE;
145 serverLayoutRec xf86ConfigLayout = { NULL, };
146 confDRIRec xf86ConfigDRI = { 0, };
147 
148 XF86ConfigPtr xf86configptr = NULL;
149 Bool xf86Resetting = FALSE;
150 Bool xf86Initialising = FALSE;
151 Bool xf86DoConfigure = FALSE;
152 Bool xf86ProbeIgnorePrimary = FALSE;
153 Bool xf86DoShowOptions = FALSE;
154 DriverPtr *xf86DriverList = NULL;
155 int xf86NumDrivers = 0;
156 InputDriverPtr *xf86InputDriverList = NULL;
157 int xf86NumInputDrivers = 0;
158 int xf86NumScreens = 0;
159 int xf86NumGPUScreens = 0;
160 
161 const char *xf86VisualNames[] = {
162     "StaticGray",
163     "GrayScale",
164     "StaticColor",
165     "PseudoColor",
166     "TrueColor",
167     "DirectColor"
168 };
169 
170 /* Parameters set only from the command line */
171 Bool xf86fpFlag = FALSE;
172 Bool xf86sFlag = FALSE;
173 Bool xf86bsEnableFlag = FALSE;
174 Bool xf86bsDisableFlag = FALSE;
175 Bool xf86silkenMouseDisableFlag = FALSE;
176 Bool xf86xkbdirFlag = FALSE;
177 
178 #ifdef HAVE_ACPI
179 Bool xf86acpiDisableFlag = FALSE;
180 #endif
181 char *xf86LayoutName = NULL;
182 char *xf86ScreenName = NULL;
183 char *xf86PointerName = NULL;
184 char *xf86KeyboardName = NULL;
185 int xf86Verbose = DEFAULT_VERBOSE;
186 int xf86LogVerbose = DEFAULT_LOG_VERBOSE;
187 int xf86FbBpp = -1;
188 int xf86Depth = -1;
189 rgb xf86Weight = { 0, 0, 0 };
190 
191 Gamma xf86Gamma = { 0.0, 0.0, 0.0 };
192 
193 Bool xf86AllowMouseOpenFail = FALSE;
194 Bool xf86AutoBindGPUDisabled = FALSE;
195 
196 #ifdef XF86VIDMODE
197 Bool xf86VidModeDisabled = FALSE;
198 Bool xf86VidModeAllowNonLocal = FALSE;
199 #endif
200 Bool xorgHWAccess = FALSE;
201