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a09e091a JB |
1 | /************************************************************ |
2 | ||
3 | Copyright 1989, 1998 The Open Group | |
4 | ||
5 | Permission to use, copy, modify, distribute, and sell this software and its | |
6 | documentation for any purpose is hereby granted without fee, provided that | |
7 | the above copyright notice appear in all copies and that both that | |
8 | copyright notice and this permission notice appear in supporting | |
9 | documentation. | |
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 THE | |
17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN | |
18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
20 | ||
21 | Except as contained in this notice, the name of The Open Group shall not be | |
22 | used in advertising or otherwise to promote the sale, use or other dealings | |
23 | in this Software without prior written authorization from The Open Group. | |
24 | ||
25 | Copyright 1989 by Hewlett-Packard Company, Palo Alto, California. | |
26 | ||
27 | All Rights Reserved | |
28 | ||
29 | Permission to use, copy, modify, and distribute this software and its | |
30 | documentation for any purpose and without fee is hereby granted, | |
31 | provided that the above copyright notice appear in all copies and that | |
32 | both that copyright notice and this permission notice appear in | |
33 | supporting documentation, and that the name of Hewlett-Packard not be | |
34 | used in advertising or publicity pertaining to distribution of the | |
35 | software without specific, written prior permission. | |
36 | ||
37 | HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
39 | HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
43 | SOFTWARE. | |
44 | ||
45 | ********************************************************/ | |
46 | ||
47 | /******************************************************************** | |
48 | * | |
49 | * Change Device control attributes for an extension device. | |
50 | * | |
51 | */ | |
52 | ||
53 | #ifdef HAVE_DIX_CONFIG_H | |
54 | #include <dix-config.h> | |
55 | #endif | |
56 | ||
57 | #include "inputstr.h" /* DeviceIntPtr */ | |
58 | #include <X11/extensions/XI.h> | |
59 | #include <X11/extensions/XIproto.h> /* control constants */ | |
60 | #include "XIstubs.h" | |
61 | ||
62 | #include "exglobals.h" | |
63 | #include "exevents.h" | |
64 | ||
65 | #include "chgdctl.h" | |
66 | ||
67 | /*********************************************************************** | |
68 | * | |
69 | * This procedure changes the control attributes for an extension device, | |
70 | * for clients on machines with a different byte ordering than the server. | |
71 | * | |
72 | */ | |
73 | ||
74 | int | |
75 | SProcXChangeDeviceControl(ClientPtr client) | |
76 | { | |
77 | xDeviceCtl *ctl; | |
78 | ||
79 | REQUEST(xChangeDeviceControlReq); | |
80 | swaps(&stuff->length); | |
81 | REQUEST_AT_LEAST_SIZE(xChangeDeviceControlReq); | |
82 | swaps(&stuff->control); | |
83 | ctl = (xDeviceCtl *) &stuff[1]; | |
84 | swaps(&ctl->control); | |
85 | swaps(&ctl->length); | |
86 | switch (stuff->control) { | |
87 | case DEVICE_ABS_CALIB: | |
88 | case DEVICE_ABS_AREA: | |
89 | case DEVICE_CORE: | |
90 | case DEVICE_ENABLE: | |
91 | case DEVICE_RESOLUTION: | |
92 | /* hmm. beer. *drool* */ | |
93 | break; | |
94 | ||
95 | } | |
96 | return (ProcXChangeDeviceControl(client)); | |
97 | } | |
98 | ||
99 | /*********************************************************************** | |
100 | * | |
101 | * Change the control attributes. | |
102 | * | |
103 | */ | |
104 | ||
105 | int | |
106 | ProcXChangeDeviceControl(ClientPtr client) | |
107 | { | |
108 | unsigned len; | |
109 | int i, status, ret = BadValue; | |
110 | DeviceIntPtr dev; | |
111 | xDeviceResolutionCtl *r; | |
112 | xChangeDeviceControlReply rep; | |
113 | AxisInfoPtr a; | |
114 | CARD32 *resolution; | |
115 | xDeviceEnableCtl *e; | |
116 | ||
117 | REQUEST(xChangeDeviceControlReq); | |
118 | REQUEST_AT_LEAST_SIZE(xChangeDeviceControlReq); | |
119 | ||
120 | len = stuff->length - bytes_to_int32(sizeof(xChangeDeviceControlReq)); | |
121 | ret = dixLookupDevice(&dev, stuff->deviceid, client, DixManageAccess); | |
122 | if (ret != Success) | |
123 | goto out; | |
124 | ||
125 | /* XTest devices are special, none of the below apply to them anyway */ | |
126 | if (IsXTestDevice(dev, NULL)) { | |
127 | ret = BadMatch; | |
128 | goto out; | |
129 | } | |
130 | ||
131 | rep = (xChangeDeviceControlReply) { | |
132 | .repType = X_Reply, | |
133 | .RepType = X_ChangeDeviceControl, | |
134 | .sequenceNumber = client->sequence, | |
135 | .length = 0, | |
136 | .status = Success, | |
137 | }; | |
138 | ||
139 | switch (stuff->control) { | |
140 | case DEVICE_RESOLUTION: | |
141 | r = (xDeviceResolutionCtl *) &stuff[1]; | |
142 | if ((len < bytes_to_int32(sizeof(xDeviceResolutionCtl))) || | |
143 | (len != | |
144 | bytes_to_int32(sizeof(xDeviceResolutionCtl)) + r->num_valuators)) { | |
145 | ret = BadLength; | |
146 | goto out; | |
147 | } | |
148 | if (!dev->valuator) { | |
149 | ret = BadMatch; | |
150 | goto out; | |
151 | } | |
152 | if ((dev->deviceGrab.grab) && !SameClient(dev->deviceGrab.grab, client)) { | |
153 | rep.status = AlreadyGrabbed; | |
154 | ret = Success; | |
155 | goto out; | |
156 | } | |
157 | resolution = (CARD32 *) (r + 1); | |
158 | if (r->first_valuator + r->num_valuators > dev->valuator->numAxes) { | |
159 | ret = BadValue; | |
160 | goto out; | |
161 | } | |
162 | status = ChangeDeviceControl(client, dev, (xDeviceCtl *) r); | |
163 | if (status == Success) { | |
164 | a = &dev->valuator->axes[r->first_valuator]; | |
165 | for (i = 0; i < r->num_valuators; i++) | |
166 | if (*(resolution + i) < (a + i)->min_resolution || | |
167 | *(resolution + i) > (a + i)->max_resolution) | |
168 | return BadValue; | |
169 | for (i = 0; i < r->num_valuators; i++) | |
170 | (a++)->resolution = *resolution++; | |
171 | ||
172 | ret = Success; | |
173 | } | |
174 | else if (status == DeviceBusy) { | |
175 | rep.status = DeviceBusy; | |
176 | ret = Success; | |
177 | } | |
178 | else { | |
179 | ret = BadMatch; | |
180 | } | |
181 | break; | |
182 | case DEVICE_ABS_CALIB: | |
183 | case DEVICE_ABS_AREA: | |
184 | /* Calibration is now done through properties, and never had any effect | |
185 | * on anything (in the open-source world). Thus, be honest. */ | |
186 | ret = BadMatch; | |
187 | break; | |
188 | case DEVICE_CORE: | |
189 | /* Sorry, no device core switching no more. If you want a device to | |
190 | * send core events, attach it to a master device */ | |
191 | ret = BadMatch; | |
192 | break; | |
193 | case DEVICE_ENABLE: | |
194 | e = (xDeviceEnableCtl *) &stuff[1]; | |
195 | ||
196 | if (IsXTestDevice(dev, NULL)) | |
197 | status = !Success; | |
198 | else | |
199 | status = ChangeDeviceControl(client, dev, (xDeviceCtl *) e); | |
200 | ||
201 | if (status == Success) { | |
202 | if (e->enable) | |
203 | EnableDevice(dev, TRUE); | |
204 | else | |
205 | DisableDevice(dev, TRUE); | |
206 | ret = Success; | |
207 | } | |
208 | else if (status == DeviceBusy) { | |
209 | rep.status = DeviceBusy; | |
210 | ret = Success; | |
211 | } | |
212 | else { | |
213 | ret = BadMatch; | |
214 | } | |
215 | ||
216 | break; | |
217 | default: | |
218 | ret = BadValue; | |
219 | } | |
220 | ||
221 | out: | |
222 | if (ret == Success) { | |
223 | devicePresenceNotify dpn = { | |
224 | .type = DevicePresenceNotify, | |
225 | .time = currentTime.milliseconds, | |
226 | .devchange = DeviceControlChanged, | |
227 | .deviceid = dev->id, | |
228 | .control = stuff->control | |
229 | }; | |
230 | SendEventToAllWindows(dev, DevicePresenceNotifyMask, | |
231 | (xEvent *) &dpn, 1); | |
232 | ||
233 | WriteReplyToClient(client, sizeof(xChangeDeviceControlReply), &rep); | |
234 | } | |
235 | ||
236 | return ret; | |
237 | } | |
238 | ||
239 | /*********************************************************************** | |
240 | * | |
241 | * This procedure writes the reply for the xChangeDeviceControl function, | |
242 | * if the client and server have a different byte ordering. | |
243 | * | |
244 | */ | |
245 | ||
246 | void | |
247 | SRepXChangeDeviceControl(ClientPtr client, int size, | |
248 | xChangeDeviceControlReply * rep) | |
249 | { | |
250 | swaps(&rep->sequenceNumber); | |
251 | swapl(&rep->length); | |
252 | WriteToClient(client, size, rep); | |
253 | } |