1 /* $NetBSD: wsdisplay_vcons_util.c,v 1.2 2011/05/25 06:01:39 macallan 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 /* some utility functions for use with vcons */
30 #include <sys/param.h>
31 #include <sys/stdint.h>
32 #include <sys/systm.h>
33 #include <sys/buf.h>
34 #include <sys/device.h>
35 #include <sys/msgbuf.h>
36 #include <dev/cons.h>
37
38 #include <dev/wscons/wsdisplayvar.h>
39 #include <dev/wscons/wsconsio.h>
40 #include <dev/wsfont/wsfont.h>
41 #include <dev/rasops/rasops.h>
42
43 #include <dev/wscons/wsdisplay_vconsvar.h>
44
45 void
vcons_replay_msgbuf(struct vcons_screen * scr)46 vcons_replay_msgbuf(struct vcons_screen *scr)
47 {
48 int status = scr->scr_status;
49 int rptr = msgbufp->msg_bufr;
50
51 scr->scr_status &= ~VCONS_IS_VISIBLE;
52 while (rptr != msgbufp->msg_bufx) {
53 cnputc(msgbufp->msg_bufc[rptr]);
54 rptr++;
55 if (rptr >= msgbufp->msg_bufs)
56 rptr = 0;
57 }
58 scr->scr_status = status;
59 vcons_update_screen(scr);
60 }
61