/*      $NetBSD: wsdisplay_vcons_util.c,v 1.4 2021/01/17 00:35:46 jmcneill Exp $ */

/*-
* Copyright (c) 2009 Michael Lorenz
* All rights reserved.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

#ifdef _KERNEL_OPT
#include "opt_wsdisplay_compat.h"
#endif

/* some utility functions for use with vcons */
#include <sys/param.h>
#include <sys/stdint.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/msgbuf.h>
#include <dev/cons.h>

#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wsfont/wsfont.h>
#include <dev/rasops/rasops.h>

#include <dev/wscons/wsdisplay_vconsvar.h>

void
vcons_replay_msgbuf(struct vcons_screen *scr)
{
       int status = scr->scr_status;
       int rptr = msgbufp->msg_bufr;

#ifdef WSDISPLAY_MULTICONS
       wsdisplay_multicons_suspend(true);
#endif

       scr->scr_status &= ~VCONS_IS_VISIBLE;
       while (rptr != msgbufp->msg_bufx) {
               cnputc(msgbufp->msg_bufc[rptr]);
               rptr++;
               if (rptr >= msgbufp->msg_bufs)
                       rptr = 0;
       }
       scr->scr_status = status;
       vcons_update_screen(scr);

#ifdef WSDISPLAY_MULTICONS
       wsdisplay_multicons_suspend(false);
#endif
}