freebsd-skq/sys/dev/vt/vt_consolectl.c
emaste 2b75e7bbda Use a common tunable to choose between vt(4)/sc(4)
With this change and previous work from ray@ it will be possible to put
both in GENERIC, and have one enabled by default, but allow the other to
be selected via the loader.

(The previous implementation had separate kern.vt.disable and
hw.syscons.disable tunables, and would panic if both drivers were
compiled in and neither was explicitly disabled.)

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2014-06-27 17:50:33 +00:00

83 lines
2.4 KiB
C

/*-
* Copyright (c) 2009 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Ed Schouten under sponsorship from the
* FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/consio.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <dev/vt/vt.h>
static d_ioctl_t consolectl_ioctl;
static struct cdevsw consolectl_cdevsw = {
.d_version = D_VERSION,
.d_ioctl = consolectl_ioctl,
.d_name = "consolectl",
};
static int
consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
struct thread *td)
{
switch (cmd) {
case CONS_GETVERS:
*(int*)data = 0x200;
return 0;
case CONS_MOUSECTL: {
mouse_info_t *mi = (mouse_info_t*)data;
sysmouse_process_event(mi);
return (0);
}
default:
#ifdef VT_CONSOLECTL_DEBUG
printf("consolectl: unknown ioctl: %c:%lx\n",
(char)IOCGROUP(cmd), IOCBASECMD(cmd));
#endif
return (ENOIOCTL);
}
}
static void
consolectl_drvinit(void *unused)
{
if (!vty_enabled(VTY_VT))
return;
make_dev(&consolectl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
"consolectl");
}
SYSINIT(consolectl, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, consolectl_drvinit, NULL);