Home | History | Annotate | Line # | Download | only in wscons 
      1 /*	$NetBSD: wsdisplay_vcons_util.c,v 1.4 2021/01/17 00:35:46 jmcneill Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2009 Michael Lorenz
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifdef _KERNEL_OPT
     30 #include "opt_wsdisplay_compat.h"
     31 #endif
     32 
     33 /* some utility functions for use with vcons */
     34 #include <sys/param.h>
     35 #include <sys/stdint.h>
     36 #include <sys/systm.h>
     37 #include <sys/buf.h>
     38 #include <sys/device.h>
     39 #include <sys/msgbuf.h>
     40 #include <dev/cons.h>
     41 
     42 #include <dev/wscons/wsdisplayvar.h>
     43 #include <dev/wscons/wsconsio.h>
     44 #include <dev/wsfont/wsfont.h>
     45 #include <dev/rasops/rasops.h>
     46 
     47 #include <dev/wscons/wsdisplay_vconsvar.h>
     48 
     49 void
     50 vcons_replay_msgbuf(struct vcons_screen *scr)
     51 {
     52 	int status = scr->scr_status;
     53 	int rptr = msgbufp->msg_bufr;
     54 
     55 #ifdef WSDISPLAY_MULTICONS
     56 	wsdisplay_multicons_suspend(true);
     57 #endif
     58 
     59 	scr->scr_status &= ~VCONS_IS_VISIBLE;
     60 	while (rptr != msgbufp->msg_bufx) {
     61 		cnputc(msgbufp->msg_bufc[rptr]);
     62 		rptr++;
     63 		if (rptr >= msgbufp->msg_bufs)
     64 			rptr = 0;
     65 	}
     66 	scr->scr_status = status;
     67 	vcons_update_screen(scr);
     68 
     69 #ifdef WSDISPLAY_MULTICONS
     70 	wsdisplay_multicons_suspend(false);
     71 #endif
     72 }
     73