148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/* $NetBSD: dumb.c,v 1.4 1996/10/15 00:52:22 mark Exp $ */
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/*
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* Copyright (c) 1994-1995 Melvyn Tang-Richardson
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* Copyright (c) 1994-1995 RiscBSD kernel team
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the RiscBSD kernel team
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE RISCBSD TEAM ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* dumb.c
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*
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* Console functions
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*
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* Created : 17/09/94
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <machine/param.h>
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#include <machine/katelib.h>
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#include <machine/cpu.h>
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#include <machine/bootconfig.h>
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#include <machine/iomd.h>
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#include <machine/vidc.h>
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#include <machine/vconsole.h>
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#define TERMTYPE_PUTSTRING dumb_putstring
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#define TERMTYPE_INIT dumb_init
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int
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TERMTYPE_INIT(vc)
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struct vconsole *vc;
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{
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/* This dumb termial is so dumb it requires very little init */
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return 0;
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}
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static void
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do_scrollup(vc)
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struct vconsole *vc;
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{
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if (vc==vconsole_current)
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vc->SCROLLUP(vc, 0, vc->ychars-1);
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vc->ycur=vc->ychars-1;
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if (((vc->flags)&(LOSSY)) == 0) {
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int counter;
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for (counter=vc->xchars; counter < ((vc->ychars)*(vc->xchars)); counter++)
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vc->charmap[counter-vc->xchars] = vc->charmap[counter];
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for (counter=vc->xchars*(vc->ychars-1); counter < (vc->xchars*vc->ychars); counter++)
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vc->charmap[counter]=0x20;
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}
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}
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static int
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do_render(c, vc)
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char c;
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struct vconsole *vc;
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{
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/* THE RENDER STAGE **********************************/
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if ((c>=0x20)&&(c<=0x7f)) {
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if (((vc->flags)&(LOSSY))==0) {
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vc->charmap[vc->xcur + vc->ycur*vc->xchars] = c | 7<<8;
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}
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if (vc==vconsole_current)
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vc->RENDER(vc, c);
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vc->xcur++;
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}
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if (vc->xcur >= vc->xchars) {
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vc->xcur=0;
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vc->ycur++;
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}
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if (vc->ycur >= vc->ychars) {
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do_scrollup(vc);
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vc->xcur=0;
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vc->ycur=vc->ychars-1;
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}
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return(0);
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}
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int
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TERMTYPE_PUTSTRING(string, length, vc)
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char *string;
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int length;
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struct vconsole *vc;
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{
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char c;
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while (((c=*(string++))!=0) && ((length--)>0)) {
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if ((c<31)||(c>127)) c='*';
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switch (c) {
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case 0x0a:
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vc->ycur++;
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if (vc->ycur>=vc->ychars) {
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do_scrollup(vc);
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vc->ycur=vc->ychars-1;
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}
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break;
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case 0x0d:
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vc->xcur=0;
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break;
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default:
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do_render(c, vc);
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break;
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}
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}
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return(0);
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}
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