143 lines
3.6 KiB
C
143 lines
3.6 KiB
C
/* $NetBSD: dumb.c,v 1.5 1997/10/14 11:49:15 mark Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994-1995 Melvyn Tang-Richardson
|
|
* Copyright (c) 1994-1995 RiscBSD kernel team
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the RiscBSD kernel team
|
|
* 4. The name of the company nor the name of the author may be used to
|
|
* endorse or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE RISCBSD TEAM ``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 AUTHORS 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.
|
|
*
|
|
* RiscBSD kernel project
|
|
*
|
|
* dumb.c
|
|
*
|
|
* Console functions
|
|
*
|
|
* Created : 17/09/94
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/device.h>
|
|
#include <machine/param.h>
|
|
#include <machine/vidc.h>
|
|
#include <machine/vconsole.h>
|
|
|
|
#define TERMTYPE_PUTSTRING dumb_putstring
|
|
#define TERMTYPE_INIT dumb_init
|
|
|
|
int
|
|
TERMTYPE_INIT(vc)
|
|
struct vconsole *vc;
|
|
{
|
|
/* This dumb termial is so dumb it requires very little init */
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
do_scrollup(vc)
|
|
struct vconsole *vc;
|
|
{
|
|
|
|
if (vc==vconsole_current)
|
|
vc->SCROLLUP(vc, 0, vc->ychars-1);
|
|
|
|
vc->ycur=vc->ychars-1;
|
|
|
|
if (((vc->flags)&(LOSSY)) == 0) {
|
|
int counter;
|
|
for (counter=vc->xchars; counter < ((vc->ychars)*(vc->xchars)); counter++)
|
|
vc->charmap[counter-vc->xchars] = vc->charmap[counter];
|
|
|
|
for (counter=vc->xchars*(vc->ychars-1); counter < (vc->xchars*vc->ychars); counter++)
|
|
vc->charmap[counter]=0x20;
|
|
}
|
|
}
|
|
|
|
static int
|
|
do_render(c, vc)
|
|
char c;
|
|
struct vconsole *vc;
|
|
{
|
|
/* THE RENDER STAGE **********************************/
|
|
if ((c>=0x20)&&(c<=0x7f)) {
|
|
if (((vc->flags)&(LOSSY))==0) {
|
|
vc->charmap[vc->xcur + vc->ycur*vc->xchars] = c | 7<<8;
|
|
}
|
|
|
|
if (vc==vconsole_current)
|
|
vc->RENDER(vc, c);
|
|
|
|
vc->xcur++;
|
|
}
|
|
|
|
if (vc->xcur >= vc->xchars) {
|
|
vc->xcur=0;
|
|
vc->ycur++;
|
|
}
|
|
|
|
if (vc->ycur >= vc->ychars) {
|
|
do_scrollup(vc);
|
|
vc->xcur=0;
|
|
vc->ycur=vc->ychars-1;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
TERMTYPE_PUTSTRING(string, length, vc)
|
|
char *string;
|
|
int length;
|
|
struct vconsole *vc;
|
|
{
|
|
char c;
|
|
|
|
while (((c=*(string++))!=0) && ((length--)>0)) {
|
|
if ((c<31)||(c>127)) c='*';
|
|
switch (c) {
|
|
case 0x0a:
|
|
vc->ycur++;
|
|
if (vc->ycur>=vc->ychars) {
|
|
do_scrollup(vc);
|
|
vc->ycur=vc->ychars-1;
|
|
}
|
|
break;
|
|
|
|
case 0x0d:
|
|
vc->xcur=0;
|
|
break;
|
|
|
|
default:
|
|
do_render(c, vc);
|
|
break;
|
|
}
|
|
}
|
|
return(0);
|
|
}
|