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/* $OpenBSD: wsemul_dumb.c,v 1.1 2000/05/16 23:49:11 mickey Exp $ */
/* $NetBSD: wsemul_dumb.c,v 1.7 2000/01/05 11:19:36 drochner Exp $ */
/*
* Copyright (c) 1996, 1997 Christopher G. Demetriou. 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 Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/malloc.h>
#include <sys/fcntl.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsemulvar.h>
#include <dev/wscons/ascii.h>
void *wsemul_dumb_cnattach __P((const struct wsscreen_descr *, void *,
int, int, long));
void *wsemul_dumb_attach __P((int console, const struct wsscreen_descr *,
void *, int, int, void *, long));
void wsemul_dumb_output __P((void *cookie, const u_char *data, u_int count,
int));
int wsemul_dumb_translate __P((void *cookie, keysym_t, char **));
void wsemul_dumb_detach __P((void *cookie, u_int *crowp, u_int *ccolp));
void wsemul_dumb_resetop __P((void *, enum wsemul_resetops));
const struct wsemul_ops wsemul_dumb_ops = {
"dumb",
wsemul_dumb_cnattach,
wsemul_dumb_attach,
wsemul_dumb_output,
wsemul_dumb_translate,
wsemul_dumb_detach,
wsemul_dumb_resetop
};
struct wsemul_dumb_emuldata {
const struct wsdisplay_emulops *emulops;
void *emulcookie;
void *cbcookie;
u_int nrows, ncols, crow, ccol;
long defattr;
};
struct wsemul_dumb_emuldata wsemul_dumb_console_emuldata;
void *
wsemul_dumb_cnattach(type, cookie, ccol, crow, defattr)
const struct wsscreen_descr *type;
void *cookie;
int ccol, crow;
long defattr;
{
struct wsemul_dumb_emuldata *edp;
edp = &wsemul_dumb_console_emuldata;
edp->emulops = type->textops;
edp->emulcookie = cookie;
edp->nrows = type->nrows;
edp->ncols = type->ncols;
edp->crow = crow;
edp->ccol = ccol;
edp->defattr = defattr;
edp->cbcookie = NULL;
return (edp);
}
void *
wsemul_dumb_attach(console, type, cookie, ccol, crow, cbcookie, defattr)
int console;
const struct wsscreen_descr *type;
void *cookie;
int ccol, crow;
void *cbcookie;
long defattr;
{
struct wsemul_dumb_emuldata *edp;
if (console)
edp = &wsemul_dumb_console_emuldata;
else {
edp = malloc(sizeof *edp, M_DEVBUF, M_WAITOK);
edp->emulops = type->textops;
edp->emulcookie = cookie;
edp->nrows = type->nrows;
edp->ncols = type->ncols;
edp->crow = crow;
edp->ccol = ccol;
edp->defattr = defattr;
}
edp->cbcookie = cbcookie;
return (edp);
}
void
wsemul_dumb_output(cookie, data, count, kernel)
void *cookie;
const u_char *data;
u_int count;
int kernel; /* ignored */
{
struct wsemul_dumb_emuldata *edp = cookie;
u_char c;
int n;
/* XXX */
(*edp->emulops->cursor)(edp->emulcookie, 0, edp->crow, edp->ccol);
while (count-- > 0) {
c = *data++;
switch (c) {
case ASCII_BEL:
wsdisplay_emulbell(edp->cbcookie);
break;
case ASCII_BS:
if (edp->ccol > 0)
edp->ccol--;
break;
case ASCII_CR:
edp->ccol = 0;
break;
case ASCII_HT:
n = min(8 - (edp->ccol & 7),
edp->ncols - edp->ccol - 1);
(*edp->emulops->erasecols)(edp->emulcookie,
edp->crow, edp->ccol, n, edp->defattr);
edp->ccol += n;
break;
case ASCII_FF:
(*edp->emulops->eraserows)(edp->emulcookie, 0,
edp->nrows, edp->defattr);
edp->ccol = 0;
edp->crow = 0;
break;
case ASCII_VT:
if (edp->crow > 0)
edp->crow--;
break;
default:
(*edp->emulops->putchar)(edp->emulcookie, edp->crow,
edp->ccol, c, edp->defattr);
edp->ccol++;
/* if cur col is still on cur line, done. */
if (edp->ccol < edp->ncols)
break;
/* wrap the column around. */
edp->ccol = 0;
/* FALLTHRU */
case ASCII_LF:
/* if the cur line isn't the last, incr and leave. */
if (edp->crow < edp->nrows - 1) {
edp->crow++;
break;
}
n = 1; /* number of lines to scroll */
(*edp->emulops->copyrows)(edp->emulcookie, n, 0,
edp->nrows - n);
(*edp->emulops->eraserows)(edp->emulcookie,
edp->nrows - n, n, edp->defattr);
edp->crow -= n - 1;
break;
}
}
/* XXX */
(*edp->emulops->cursor)(edp->emulcookie, 1, edp->crow, edp->ccol);
}
int
wsemul_dumb_translate(cookie, in, out)
void *cookie;
keysym_t in;
char **out;
{
return (0);
}
void
wsemul_dumb_detach(cookie, crowp, ccolp)
void *cookie;
u_int *crowp, *ccolp;
{
struct wsemul_dumb_emuldata *edp = cookie;
*crowp = edp->crow;
*ccolp = edp->ccol;
if (edp != &wsemul_dumb_console_emuldata)
free(edp, M_DEVBUF);
}
void
wsemul_dumb_resetop(cookie, op)
void *cookie;
enum wsemul_resetops op;
{
struct wsemul_dumb_emuldata *edp = cookie;
switch (op) {
case WSEMUL_CLEARSCREEN:
(*edp->emulops->eraserows)(edp->emulcookie, 0, edp->nrows,
edp->defattr);
edp->ccol = edp->crow = 0;
(*edp->emulops->cursor)(edp->emulcookie, 1, 0, 0);
break;
default:
break;
}
}
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