/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _SYS_VT_H
#define _SYS_VT_H

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/types.h>

/*
 * Public IOCTLs supported by the VT, which are shared with
 * other operating systems.
 */
#define VTIOC           ('V'<<8)
#define VT_OPENQRY      (VTIOC|1)       /* inquires if this vt already open */
#define VT_SETMODE      (VTIOC|2)       /* set vt into auto or process mode */

#define VT_GETMODE      (VTIOC|3)       /* returns mode vt is currently in */
#define VT_RELDISP      (VTIOC|4)       /* tells vt when display released */
#define VT_ACTIVATE     (VTIOC|5)       /* activates specified vt */
#define VT_WAITACTIVE   (VTIOC|6)       /* wait for vt to be activated */
#define VT_GETSTATE     (VTIOC|100)     /* returns active and open vts */

/*
 * Solaris specific public IOCTL.
 * Inquires if the vt functionality is available.
 */
#define VT_ENABLED      (VTIOC|101)

/* get/set the target of /dev/vt/console_user symbol link */
#define VT_GET_CONSUSER (VTIOC|108)
#define VT_SET_CONSUSER (VTIOC|109)

struct vt_mode {
        char    mode;   /* mode to set vt into, VT_AUTO or VT_PROCESS */
        char    waitv;  /* if != 0, vt hangs on writes when not active */
        short   relsig; /* signal to use for release request */
        short   acqsig; /* signal to use for display acquired */
        short   frsig;  /* signal to use for forced release */
};

/* vt switching mode */
enum {
        VT_AUTO = 0,    /* this vt switching is automatic */
        VT_PROCESS      /* this vt switching controlled by process */
};

#define VT_ACKACQ       2       /* ack from v86 acquire routine */

/*
 * structure used by VT_GETSTATE ioctl
 */

struct vt_stat {
        unsigned short  v_active;
        unsigned short  v_signal;
        unsigned short  v_state;
};

/* project private IOCTLs */
#define VT_CONFIG       (VTIOC|102)     /* config virtual console number */
#define VT_SETDISPINFO  (VTIOC|103)     /* set display number */
#define VT_SETDISPLOGIN (VTIOC|104)     /* set display login */
#define VT_GETDISPINFO  (VTIOC|105)     /* get display info */

/*
 * setting target console is only used by vtdaemon
 * to set target console while vtdaemon is authenticating
 * for it, which is returned in VT_GETSTATE. At that
 * time, the real active console is the vtdaemon special console,
 * but VT_GETSTATE should not be aware of it. Instead, VT_GETACTIVE
 * is used to get the real active console for vtdaemon.
 */
#define VT_SET_TARGET   (VTIOC|106)
#define VT_GETACTIVE    (VTIOC|107)

/*
 * Used by cn to convert a VT_SET_CONSUSER to a internal interface
 * so that /dev/console and /dev/vt/0 could be differentiated.
 */
#define VT_RESET_CONSUSER       (VTIOC|110)

/*
 * structure used by VT_GETDISPINFO
 */
struct vt_dispinfo {
        pid_t   v_pid;          /* -1 if no display info (auto mode) */
        int     v_dispnum;      /* display number associated with vt */
        int     v_login;        /* if the user logged in the display */
};

#ifdef __cplusplus
}
#endif

#endif /* _SYS_VT_H */