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/* $OpenBSD: rcons_kern.c,v 1.4 2000/07/19 13:55:07 art Exp $ */
/* $NetBSD: rcons_kern.c,v 1.4 1996/03/14 19:02:33 christos Exp $ */
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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.
*
* @(#)rcons_kern.c 8.1 (Berkeley) 6/11/93
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/proc.h>
#include <dev/rcons/raster.h>
#include <dev/rcons/rcons.h>
extern struct tty *fbconstty;
static void rcons_belltmr(void *);
#include "rcons_subr.h"
static struct rconsole *mydevicep;
static void rcons_output __P((struct tty *));
void
rcons_cnputc(c)
int c;
{
char buf[1];
if (c == '\n')
rcons_puts(mydevicep, "\r\n", 2);
else {
buf[0] = c;
rcons_puts(mydevicep, buf, 1);
}
}
static void
rcons_output(tp)
register struct tty *tp;
{
register int s, n;
char buf[OBUFSIZ];
s = spltty();
if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) {
splx(s);
return;
}
tp->t_state |= TS_BUSY;
splx(s);
n = q_to_b(&tp->t_outq, buf, sizeof(buf));
rcons_puts(mydevicep, buf, n);
s = spltty();
tp->t_state &= ~TS_BUSY;
/* Come back if there's more to do */
if (tp->t_outq.c_cc) {
tp->t_state |= TS_TIMEOUT;
timeout_add(&tp->t_rstrt_to, 1);
}
if (tp->t_outq.c_cc <= tp->t_lowat) {
if (tp->t_state&TS_ASLEEP) {
tp->t_state &= ~TS_ASLEEP;
wakeup((caddr_t)&tp->t_outq);
}
selwakeup(&tp->t_wsel);
}
splx(s);
}
/* Ring the console bell */
void
rcons_bell(rc)
register struct rconsole *rc;
{
register int i, s;
if (rc->rc_bits & FB_VISBELL) {
/* invert the screen twice */
for (i = 0; i < 2; ++i)
raster_op(rc->rc_sp, 0, 0,
rc->rc_sp->width, rc->rc_sp->height,
RAS_INVERT, (struct raster *) 0, 0, 0);
}
s = splhigh();
if (rc->rc_belldepth++) {
if (rc->rc_belldepth > 3)
rc->rc_belldepth = 3;
splx(s);
} else {
rc->rc_ringing = 1;
splx(s);
(*rc->rc_bell)(1);
/* XXX Chris doesn't like the following divide */
timeout(rcons_belltmr, rc, hz/10);
}
}
/* Bell timer service routine */
static void
rcons_belltmr(p)
void *p;
{
register struct rconsole *rc = p;
register int s = splhigh(), i;
if (rc->rc_ringing) {
rc->rc_ringing = 0;
i = --rc->rc_belldepth;
splx(s);
(*rc->rc_bell)(0);
if (i != 0)
/* XXX Chris doesn't like the following divide */
timeout(rcons_belltmr, rc, hz/30);
} else {
rc->rc_ringing = 1;
splx(s);
(*rc->rc_bell)(1);
timeout(rcons_belltmr, rc, hz/10);
}
}
void
rcons_init(rc)
register struct rconsole *rc;
{
/* XXX this should go away */
static struct raster xxxraster;
register struct raster *rp = rc->rc_sp = &xxxraster;
register struct winsize *ws;
register int i;
static int row, col;
mydevicep = rc;
/* XXX mostly duplicates of data in other places */
rp->width = rc->rc_width;
rp->height = rc->rc_height;
rp->depth = rc->rc_depth;
if (rc->rc_linebytes & 0x3) {
printf("rcons_init: linebytes assumption botched (0x%x)\n",
rc->rc_linebytes);
return;
}
rp->linelongs = rc->rc_linebytes >> 2;
rp->pixels = (u_int32_t *)rc->rc_pixels;
rc->rc_ras_blank = RAS_CLEAR;
/* Impose upper bounds on rc_max{row,col} */
i = rc->rc_height / rc->rc_font->height;
if (rc->rc_maxrow > i)
rc->rc_maxrow = i;
i = rc->rc_width / rc->rc_font->width;
if (rc->rc_maxcol > i)
rc->rc_maxcol = i;
/* Let the system know how big the console is */
ws = &fbconstty->t_winsize;
ws->ws_row = rc->rc_maxrow;
ws->ws_col = rc->rc_maxcol;
ws->ws_xpixel = rc->rc_width;
ws->ws_ypixel = rc->rc_height;
/* Center emulator screen (but align x origin to 32 bits) */
rc->rc_xorigin =
((rc->rc_width - rc->rc_maxcol * rc->rc_font->width) / 2) & ~0x1f;
rc->rc_yorigin =
(rc->rc_height - rc->rc_maxrow * rc->rc_font->height) / 2;
/* Emulator width and height used for scrolling */
rc->rc_emuwidth = rc->rc_maxcol * rc->rc_font->width;
if (rc->rc_emuwidth & 0x1f) {
/* Pad to 32 bits */
i = (rc->rc_emuwidth + 0x1f) & ~0x1f;
/* Make sure emulator width isn't too wide */
if (rc->rc_xorigin + i <= rc->rc_width)
rc->rc_emuwidth = i;
}
rc->rc_emuheight = rc->rc_maxrow * rc->rc_font->height;
#ifdef RASTERCONS_WONB
rc->rc_ras_blank = RAS_NOT(rc->rc_ras_blank);
rc->rc_bits |= FB_INVERT;
#endif
if (rc->rc_row == NULL || rc->rc_col == NULL) {
/*
* No address passed; use private copies
* go to LL corner and scroll.
*/
rc->rc_row = &row;
rc->rc_col = &col;
row = rc->rc_maxrow;
col = 0;
#if 0
rcons_clear2eop(rc); /* clear the display */
#endif
rcons_scroll(rc, 1);
rcons_cursor(rc); /* and draw the initial cursor */
} else {
/* Prom emulator cursor is currently visible */
rc->rc_bits |= FB_CURSOR;
}
/* Initialization done; hook us up */
fbconstty->t_oproc = rcons_output;
/*fbconstty->t_stop = (void (*)()) nullop;*/
}
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