1 /* $NetBSD: wsdisplay_vcons_util.c,v 1.3 2019/01/30 11:24:48 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