xref: /freebsd/sys/dev/vt/vt_consolectl.c (revision 2008043f386721d58158e37e0d7e50df8095942d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2009 The FreeBSD Foundation
5  *
6  * This software was developed by Ed Schouten under sponsorship from the
7  * FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 #include <sys/param.h>
33 #include <sys/consio.h>
34 #include <sys/kernel.h>
35 #include <sys/systm.h>
36 
37 #include <dev/vt/vt.h>
38 
39 static d_ioctl_t	consolectl_ioctl;
40 
41 static struct cdevsw consolectl_cdevsw = {
42 	.d_version	= D_VERSION,
43 	.d_ioctl	= consolectl_ioctl,
44 	.d_name		= "consolectl",
45 };
46 
47 static int
48 consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
49     struct thread *td)
50 {
51 
52 	switch (cmd) {
53 	case CONS_GETVERS:
54 		*(int*)data = 0x200;
55 		return 0;
56 	case CONS_MOUSECTL: {
57 		mouse_info_t *mi = (mouse_info_t*)data;
58 
59 		sysmouse_process_event(mi);
60 		return (0);
61 	}
62 	default:
63 #ifdef VT_CONSOLECTL_DEBUG
64 		printf("consolectl: unknown ioctl: %c:%lx\n",
65 		    (char)IOCGROUP(cmd), IOCBASECMD(cmd));
66 #endif
67 		return (ENOIOCTL);
68 	}
69 }
70 
71 static void
72 consolectl_drvinit(void *unused)
73 {
74 
75 	if (!vty_enabled(VTY_VT))
76 		return;
77 	make_dev(&consolectl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
78 	    "consolectl");
79 }
80 
81 SYSINIT(consolectl, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, consolectl_drvinit, NULL);
82