vt_consolectl.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    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 __FBSDID("$FreeBSD$");
   33 
   34 #include <sys/param.h>
   35 #include <sys/consio.h>
   36 #include <sys/kernel.h>
   37 #include <sys/systm.h>
   38 
   39 #include <dev/vt/vt.h>
   40 
   41 static d_ioctl_t        consolectl_ioctl;
   42 
   43 static struct cdevsw consolectl_cdevsw = {
   44         .d_version      = D_VERSION,
   45         .d_ioctl        = consolectl_ioctl,
   46         .d_name         = "consolectl",
   47 };
   48 
   49 static int
   50 consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
   51     struct thread *td)
   52 {
   53 
   54         switch (cmd) {
   55         case CONS_GETVERS:
   56                 *(int*)data = 0x200;
   57                 return 0;
   58         case CONS_MOUSECTL: {
   59                 mouse_info_t *mi = (mouse_info_t*)data;
   60 
   61                 sysmouse_process_event(mi);
   62                 return (0);
   63         }
   64         default:
   65 #ifdef VT_CONSOLECTL_DEBUG
   66                 printf("consolectl: unknown ioctl: %c:%lx\n",
   67                     (char)IOCGROUP(cmd), IOCBASECMD(cmd));
   68 #endif
   69                 return (ENOIOCTL);
   70         }
   71 }
   72 
   73 static void
   74 consolectl_drvinit(void *unused)
   75 {
   76 
   77         if (!vty_enabled(VTY_VT))
   78                 return;
   79         make_dev(&consolectl_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
   80             "consolectl");
   81 }
   82 
   83 SYSINIT(consolectl, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, consolectl_drvinit, NULL);

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FreeBSD/Linux Kernel Cross Reference sys/dev/vt/vt_consolectl.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/vt/vt_consolectl.c