devbell.c revision 4642e01f 
1/************************************************************
2
3Copyright 1989, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26
27			All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Hewlett-Packard not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45********************************************************/
46
47/***********************************************************************
48 *
49 * Extension function to change the keyboard device.
50 *
51 */
52
53#define	 NEED_EVENTS
54#define	 NEED_REPLIES
55#ifdef HAVE_DIX_CONFIG_H
56#include <dix-config.h>
57#endif
58
59#include "inputstr.h"	/* DeviceIntPtr      */
60#include <X11/extensions/XI.h>
61#include <X11/extensions/XIproto.h>
62#include "exglobals.h"
63
64#include "devbell.h"
65
66/***********************************************************************
67 *
68 * This procedure is invoked to swap the request bytes if the server and
69 * client have a different byte order.
70 *
71 */
72
73int
74SProcXDeviceBell(ClientPtr client)
75{
76    char n;
77
78    REQUEST(xDeviceBellReq);
79    swaps(&stuff->length, n);
80    return (ProcXDeviceBell(client));
81}
82
83/***********************************************************************
84 *
85 * This procedure rings a bell on an extension device.
86 *
87 */
88
89int
90ProcXDeviceBell(ClientPtr client)
91{
92    DeviceIntPtr dev;
93    KbdFeedbackPtr k;
94    BellFeedbackPtr b;
95    int rc, base;
96    int newpercent;
97    CARD8 class;
98    pointer ctrl;
99    BellProcPtr proc;
100
101    REQUEST(xDeviceBellReq);
102    REQUEST_SIZE_MATCH(xDeviceBellReq);
103
104    rc = dixLookupDevice(&dev, stuff->deviceid, client, DixBellAccess);
105    if (rc != Success) {
106	client->errorValue = stuff->deviceid;
107	return rc;
108    }
109
110    if (stuff->percent < -100 || stuff->percent > 100) {
111	client->errorValue = stuff->percent;
112	return BadValue;
113    }
114    if (stuff->feedbackclass == KbdFeedbackClass) {
115	for (k = dev->kbdfeed; k; k = k->next)
116	    if (k->ctrl.id == stuff->feedbackid)
117		break;
118	if (!k) {
119	    client->errorValue = stuff->feedbackid;
120	    return BadValue;
121	}
122	base = k->ctrl.bell;
123	proc = k->BellProc;
124	ctrl = (pointer) & (k->ctrl);
125	class = KbdFeedbackClass;
126    } else if (stuff->feedbackclass == BellFeedbackClass) {
127	for (b = dev->bell; b; b = b->next)
128	    if (b->ctrl.id == stuff->feedbackid)
129		break;
130	if (!b) {
131	    client->errorValue = stuff->feedbackid;
132	    return BadValue;
133	}
134	base = b->ctrl.percent;
135	proc = b->BellProc;
136	ctrl = (pointer) & (b->ctrl);
137	class = BellFeedbackClass;
138    } else {
139	client->errorValue = stuff->feedbackclass;
140	return BadValue;
141    }
142    newpercent = (base * stuff->percent) / 100;
143    if (stuff->percent < 0)
144	newpercent = base + newpercent;
145    else
146	newpercent = base - newpercent + stuff->percent;
147    (*proc) (newpercent, dev, ctrl, class);
148
149    return Success;
150}
151