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a09e091a JB |
1 | /* |
2 | * Copyright (c) 1997-2003 by The XFree86 Project, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Except as contained in this notice, the name of the copyright holder(s) | |
23 | * and author(s) shall not be used in advertising or otherwise to promote | |
24 | * the sale, use or other dealings in this Software without prior written | |
25 | * authorization from the copyright holder(s) and author(s). | |
26 | */ | |
27 | ||
28 | /* | |
29 | * This file contains the DPMS functions required by the extension. | |
30 | */ | |
31 | ||
32 | #ifdef HAVE_XORG_CONFIG_H | |
33 | #include <xorg-config.h> | |
34 | #endif | |
35 | ||
36 | #include <X11/X.h> | |
37 | #include "os.h" | |
38 | #include "globals.h" | |
39 | #include "windowstr.h" | |
40 | #include "xf86.h" | |
41 | #include "xf86Priv.h" | |
42 | #ifdef DPMSExtension | |
43 | #include <X11/extensions/dpmsconst.h> | |
44 | #include "dpmsproc.h" | |
45 | #endif | |
46 | #ifdef XSERVER_LIBPCIACCESS | |
47 | #include "xf86VGAarbiter.h" | |
48 | #endif | |
49 | ||
50 | #ifdef DPMSExtension | |
51 | static DevPrivateKeyRec DPMSKeyRec; | |
52 | static DevPrivateKey DPMSKey; | |
53 | static Bool DPMSClose(ScreenPtr pScreen); | |
54 | static int DPMSCount = 0; | |
55 | #endif | |
56 | ||
57 | Bool | |
58 | xf86DPMSInit(ScreenPtr pScreen, DPMSSetProcPtr set, int flags) | |
59 | { | |
60 | #ifdef DPMSExtension | |
61 | ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); | |
62 | DPMSPtr pDPMS; | |
63 | pointer DPMSOpt; | |
64 | MessageType enabled_from; | |
65 | ||
66 | DPMSKey = &DPMSKeyRec; | |
67 | ||
68 | if (!dixRegisterPrivateKey(&DPMSKeyRec, PRIVATE_SCREEN, sizeof(DPMSRec))) | |
69 | return FALSE; | |
70 | ||
71 | pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey); | |
72 | pScrn->DPMSSet = set; | |
73 | pDPMS->Flags = flags; | |
74 | DPMSOpt = xf86FindOption(pScrn->options, "dpms"); | |
75 | if (DPMSDisabledSwitch) { | |
76 | enabled_from = X_CMDLINE; | |
77 | DPMSEnabled = FALSE; | |
78 | } | |
79 | else if (DPMSOpt) { | |
80 | enabled_from = X_CONFIG; | |
81 | DPMSEnabled = xf86CheckBoolOption(pScrn->options, "dpms", FALSE); | |
82 | xf86MarkOptionUsed(DPMSOpt); | |
83 | } | |
84 | else { | |
85 | enabled_from = X_DEFAULT; | |
86 | DPMSEnabled = TRUE; | |
87 | } | |
88 | if (DPMSEnabled) | |
89 | xf86DrvMsg(pScreen->myNum, enabled_from, "DPMS enabled\n"); | |
90 | pDPMS->Enabled = DPMSEnabled; | |
91 | pDPMS->CloseScreen = pScreen->CloseScreen; | |
92 | pScreen->CloseScreen = DPMSClose; | |
93 | DPMSCount++; | |
94 | return TRUE; | |
95 | #else | |
96 | return FALSE; | |
97 | #endif | |
98 | } | |
99 | ||
100 | #ifdef DPMSExtension | |
101 | ||
102 | static Bool | |
103 | DPMSClose(ScreenPtr pScreen) | |
104 | { | |
105 | DPMSPtr pDPMS; | |
106 | ScrnInfoPtr pScrn; | |
107 | /* This shouldn't happen */ | |
108 | if (DPMSKey == NULL) | |
109 | return FALSE; | |
110 | ||
111 | pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey); | |
112 | ||
113 | /* This shouldn't happen */ | |
114 | if (!pDPMS) | |
115 | return FALSE; | |
116 | ||
117 | pScreen->CloseScreen = pDPMS->CloseScreen; | |
118 | pScrn = xf86ScreenToScrn(pScreen); | |
119 | /* | |
120 | * Turn on DPMS when shutting down. If this function can be used | |
121 | * depends on the order the driver wraps things. If this is called | |
122 | * after the driver has shut down everything the driver will have | |
123 | * to deal with this internally. | |
124 | */ | |
125 | if (pScrn->vtSema && pScrn->DPMSSet) { | |
126 | pScrn->DPMSSet(pScrn, DPMSModeOn, 0); | |
127 | } | |
128 | ||
129 | if (--DPMSCount == 0) | |
130 | DPMSKey = NULL; | |
131 | return pScreen->CloseScreen(pScreen); | |
132 | } | |
133 | ||
134 | static void | |
135 | DPMSSetScreen(ScrnInfoPtr pScrn, int level) | |
136 | { | |
137 | ScreenPtr pScreen = xf86ScrnToScreen(pScrn); | |
138 | DPMSPtr pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey); | |
139 | ||
140 | if (pDPMS && pScrn->DPMSSet && pDPMS->Enabled && pScrn->vtSema) { | |
141 | xf86VGAarbiterLock(pScrn); | |
142 | pScrn->DPMSSet(pScrn, level, 0); | |
143 | xf86VGAarbiterUnlock(pScrn); | |
144 | } | |
145 | } | |
146 | ||
147 | /* | |
148 | * DPMSSet -- | |
149 | * Device dependent DPMS mode setting hook. This is called whenever | |
150 | * the DPMS mode is to be changed. | |
151 | */ | |
152 | int | |
153 | DPMSSet(ClientPtr client, int level) | |
154 | { | |
155 | int rc, i; | |
156 | ||
157 | DPMSPowerLevel = level; | |
158 | ||
159 | if (DPMSKey == NULL) | |
160 | return Success; | |
161 | ||
162 | if (level != DPMSModeOn) { | |
163 | if (xf86IsUnblank(screenIsSaved)) { | |
164 | rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverActive); | |
165 | if (rc != Success) | |
166 | return rc; | |
167 | } | |
168 | } else if (!xf86IsUnblank(screenIsSaved)) { | |
169 | rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverReset); | |
170 | if (rc != Success) | |
171 | return rc; | |
172 | } | |
173 | ||
174 | /* For each screen, set the DPMS level */ | |
175 | for (i = 0; i < xf86NumScreens; i++) { | |
176 | DPMSSetScreen(xf86Screens[i], level); | |
177 | } | |
178 | for (i = 0; i < xf86NumGPUScreens; i++) { | |
179 | DPMSSetScreen(xf86GPUScreens[i], level); | |
180 | } | |
181 | return Success; | |
182 | } | |
183 | ||
184 | static Bool | |
185 | DPMSSupportedOnScreen(ScrnInfoPtr pScrn) | |
186 | { | |
187 | ScreenPtr pScreen = xf86ScrnToScreen(pScrn); | |
188 | DPMSPtr pDPMS = dixLookupPrivate(&pScreen->devPrivates, DPMSKey); | |
189 | ||
190 | return pDPMS && pScrn->DPMSSet; | |
191 | } | |
192 | ||
193 | /* | |
194 | * DPMSSupported -- | |
195 | * Return TRUE if any screen supports DPMS. | |
196 | */ | |
197 | Bool | |
198 | DPMSSupported(void) | |
199 | { | |
200 | int i; | |
201 | ||
202 | if (DPMSKey == NULL) { | |
203 | return FALSE; | |
204 | } | |
205 | ||
206 | /* For each screen, check if DPMS is supported */ | |
207 | for (i = 0; i < xf86NumScreens; i++) { | |
208 | if (DPMSSupportedOnScreen(xf86Screens[i])) | |
209 | return TRUE; | |
210 | } | |
211 | for (i = 0; i < xf86NumGPUScreens; i++) { | |
212 | if (DPMSSupportedOnScreen(xf86GPUScreens[i])) | |
213 | return TRUE; | |
214 | } | |
215 | return FALSE; | |
216 | } | |
217 | ||
218 | #endif /* DPMSExtension */ |