usr/src/uts/common/sys/vt.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 #ifndef _SYS_VT_H
  27 #define _SYS_VT_H
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 #include <sys/types.h>
  34
  35 /*
  36  * Public IOCTLs supported by the VT, which are shared with
  37  * other operating systems.
  38  */
  39 #define VTIOC           ('V'<<8)
  40 #define VT_OPENQRY      (VTIOC|1)       /* inquires if this vt already open */
  41 #define VT_SETMODE      (VTIOC|2)       /* set vt into auto or process mode */
  42
  43 #define VT_GETMODE      (VTIOC|3)       /* returns mode vt is currently in */
  44 #define VT_RELDISP      (VTIOC|4)       /* tells vt when display released */
  45 #define VT_ACTIVATE     (VTIOC|5)       /* activates specified vt */
  46 #define VT_WAITACTIVE   (VTIOC|6)       /* wait for vt to be activated */
  47 #define VT_GETSTATE     (VTIOC|100)     /* returns active and open vts */
  48
  49 /*
  50  * Solaris specific public IOCTL.
  51  * Inquires if the vt functionality is available.
  52  */
  53 #define VT_ENABLED      (VTIOC|101)
  54
  55 /* get/set the target of /dev/vt/console_user symbol link */
  56 #define VT_GET_CONSUSER (VTIOC|108)
  57 #define VT_SET_CONSUSER (VTIOC|109)
  58
  59 struct vt_mode {
  60         char    mode;   /* mode to set vt into, VT_AUTO or VT_PROCESS */
  61         char    waitv;  /* if != 0, vt hangs on writes when not active */
  62         short   relsig; /* signal to use for release request */
  63         short   acqsig; /* signal to use for display acquired */
  64         short   frsig;  /* signal to use for forced release */
  65 };
  66
  67 /* vt switching mode */
  68 enum {
  69         VT_AUTO = 0,    /* this vt switching is automatic */
  70         VT_PROCESS      /* this vt switching controlled by process */
  71 };
  72
  73 #define VT_ACKACQ       2       /* ack from v86 acquire routine */
  74
  75 /*
  76  * structure used by VT_GETSTATE ioctl
  77  */
  78
  79 struct vt_stat {
  80         unsigned short  v_active;
  81         unsigned short  v_signal;
  82         unsigned short  v_state;
  83 };
  84
  85 /* project private IOCTLs */
  86 #define VT_CONFIG       (VTIOC|102)     /* config virtual console number */
  87 #define VT_SETDISPINFO  (VTIOC|103)     /* set display number */
  88 #define VT_SETDISPLOGIN (VTIOC|104)     /* set display login */
  89 #define VT_GETDISPINFO  (VTIOC|105)     /* get display info */
  90
  91 /*
  92  * setting target console is only used by vtdaemon
  93  * to set target console while vtdaemon is authenticating
  94  * for it, which is returned in VT_GETSTATE. At that
  95  * time, the real active console is the vtdaemon special console,
  96  * but VT_GETSTATE should not be aware of it. Instead, VT_GETACTIVE
  97  * is used to get the real active console for vtdaemon.
  98  */
  99 #define VT_SET_TARGET   (VTIOC|106)
 100 #define VT_GETACTIVE    (VTIOC|107)
 101
 102 /*
 103  * Used by cn to convert a VT_SET_CONSUSER to a internal interface
 104  * so that /dev/console and /dev/vt/0 could be differentiated.
 105  */
 106 #define VT_RESET_CONSUSER       (VTIOC|110)
 107
 108 /*
 109  * structure used by VT_GETDISPINFO
 110  */
 111 struct vt_dispinfo {
 112         pid_t   v_pid;          /* -1 if no display info (auto mode) */
 113         int     v_dispnum;      /* display number associated with vt */
 114         int     v_login;        /* if the user logged in the display */
 115 };
 116
 117 #ifdef __cplusplus
 118 }
 119 #endif
 120
 121 #endif /* _SYS_VT_H */