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NetBSD/sys/arch/pmax/dev/rcons.c

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/* $NetBSD: rcons.c,v 1.14 1996/10/13 13:14:00 jonathan Exp $ */
/*
* Copyright (c) 1995
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ted Lemon.
*
* 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.
*
*/
#include "rasterconsole.h"
#if NRASTERCONSOLE > 0
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/conf.h>
#include <machine/conf.h>
#include <sys/vnode.h>
#include <pmax/stand/dec_prom.h>
#include <pmax/dev/sccreg.h>
#include <pmax/pmax/kn01.h>
#include <pmax/pmax/kn02.h>
#include <pmax/pmax/kmin.h>
#include <pmax/pmax/maxine.h>
#include <pmax/pmax/kn03.h>
#include <pmax/pmax/asic.h>
#include <pmax/pmax/turbochannel.h>
#include <pmax/pmax/pmaxtype.h>
#include <dev/cons.h>
#include <sys/device.h>
#include <machine/fbio.h>
#include <dev/rcons/rcons.h>
#include <dev/rcons/rcons_subr.h>
#include <dev/rcons/raster.h>
#include <machine/fbvar.h>
#include <machine/pmioctl.h>
#include <pmax/dev/fbreg.h>
/*
* Console I/O is redirected to the appropriate device, either a screen and
* keyboard, a serial port, or the "virtual" console.
*/
extern struct tty *constty; /* virtual console output device */
struct tty *fbconstty; /* Frame buffer console tty... */
struct tty rcons_tty [NRASTERCONSOLE]; /* Console tty struct... */
extern struct consdev *cn_tab; /* Console I/O table... */
struct vnode *cn_in_devvp; /* vnode for underlying input device. */
dev_t cn_in_dev = NODEV; /* console input device. */
char rcons_maxcols [20];
void rcons_connect __P((struct fbinfo *info));
void rasterconsoleattach __P((int n));
void rcons_vputc __P ((dev_t dev, int c));
void rconsreset __P((struct tty *tp, int rw));
void rconsstrategy __P((struct buf *bp));
void rcons_input __P((dev_t dev, int ic));
void rconsstart __P((struct tty *));
void nobell __P ((int));
/*
* rcons_connect is called by fbconnect when the first frame buffer is
* attached. That frame buffer will always be the console frame buffer.
*/
void
rcons_connect (info)
struct fbinfo *info;
{
static struct rconsole rc;
static int row, col;
/* If we're running a serial console, don't set up a raster console
even if there's a device that can support it. */
if (cn_tab -> cn_pri == CN_REMOTE)
return;
fbconstty = &rcons_tty [0];
fbconstty->t_dev = makedev(85, 0); /* /dev/console */
fbconstty->t_ispeed = fbconstty->t_ospeed = TTYDEF_SPEED;
fbconstty->t_param = (int (*)(struct tty *, struct termios *))nullop;
/*
* Connect the console geometry...
* the part that rcons.h says
* "This section must be filled in by the framebugger device"
*/
rc.rc_width = info->fi_type.fb_width;
rc.rc_height = info->fi_type.fb_height;
rc.rc_depth = info->fi_type.fb_depth;
rc.rc_pixels =info->fi_pixels;
rc.rc_linebytes = info->fi_linebytes;
#define HW_FONT_WIDTH 8
#define HW_FONT_HEIGHT 15
rc.rc_maxrow = rc.rc_height / HW_FONT_HEIGHT;
rc.rc_maxcol = 80;
rc.rc_bell = nobell;
/* Initialize the state information. */
rc.rc_bits = 0;
rc.rc_ringing = 0;
rc.rc_belldepth = 0;
rc.rc_scroll = 0;
rc.rc_p0 = 0;
rc.rc_p1 = 0;
/* The following two items may optionally be left zero */
rc.rc_row = &row;
rc.rc_col = &col;
/* Initialize the rastercons font to something suitable for a qvss */
rcons_font(&rc);
row = (rc.rc_height / HW_FONT_HEIGHT) - 1;
col = 0;
rcons_init (&rc);
rc.rc_xorigin = 0;
rc.rc_yorigin = 0;
}
/* We don't support ringing the keyboard bell yet */
void
nobell(arg)
int arg;
{
return;
}
/*
* Hack around the rcons putchar interface not taking a dev_t.
*/
void
rcons_vputc(dev, c)
dev_t dev;
int c;
{
/*
* Call the pointer-to-function that rcons_init tried to give us,
* discarding the dev_t argument.
*/
extern void rcons_cnputc __P((int c));
rcons_cnputc(c);
}
/*
* Pseudo-device attach routine. rcons doesn't need to be a pseudo
* device, and isn't on a sparc; this is a useful point to set up
* the vnode, clean up pmax console initialization, and set
* the initial tty size.
*/
/* ARGSUSED */
void
rasterconsoleattach (n)
int n;
{
register struct tty *tp = &rcons_tty [0];
#ifdef notyet
int status;
#endif
/* Set up the tty queues now... */
clalloc(&tp->t_rawq, 1024, 1);
clalloc(&tp->t_canq, 1024, 1);
/* output queue doesn't need quoting */
clalloc(&tp->t_outq, 1024, 0);
#ifdef DEBUG
printf("rconsattach: %d raster consoles\n", n);
#endif
#ifdef notyet /* ugly console input on pmaxes */
/* Try to set up the input device... */
if (cn_in_dev != NODEV && cn_in_devvp == NULLVP) {
/* try to get a reference on its vnode, but fail silently */
cdevvp(cn_in_dev, &cn_in_devvp);
status = ((*cdevsw[major(cn_in_dev)].d_open)
(cn_in_dev, O_NONBLOCK, S_IFCHR, curproc)); /* XXX */
if (status)
printf ("rconsattach: input device open failed: %d\n",
status);
}
/* Now the input side has been opened cleanly, we can dispense
* with any special-case console input hacks, and point the
* console device at rcons.
*/
#endif
}
/* ARGSUSED */
int
rconsopen(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
register struct tty *tp = &rcons_tty [0];
/*static int firstopen = 1;*/
int status;
if ((tp->t_state & TS_ISOPEN) == 0) {
/*
* Leave baud rate alone!
*/
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_state = TS_ISOPEN | TS_CARR_ON;
(void)(*tp->t_param)(tp, &tp->t_termios);
ttsetwater(tp);
} else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0)
return (EBUSY);
status = (*linesw[tp->t_line].l_open)(dev, tp);
return status;
}
/* ARGSUSED */
int
rconsclose(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
register struct tty *tp = &rcons_tty [0];
(*linesw[tp->t_line].l_close)(tp, flag);
ttyclose(tp);
return (0);
}
/* ARGSUSED */
int
rconsread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
register struct tty *tp = &rcons_tty [0];
return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
}
/* ARGSUSED */
int
rconswrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
register struct tty *tp;
tp = &rcons_tty [0];
return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
}
struct tty *
rconstty(dev)
dev_t dev;
{
register struct tty *tp = &rcons_tty [0];
return (tp);
}
int
rconsioctl(dev, cmd, data, flag, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
register struct tty *tp;
int error;
tp = &rcons_tty [0];
if ((error = linesw[tp->t_line].l_ioctl(tp, cmd, data, flag, p)) >= 0)
return (error);
if ((error = ttioctl(tp, cmd, data, flag, p)) >= 0)
return (error);
return (ENOTTY);
}
/* ARGSUSED */
void
rconsstop(tp, rw)
struct tty *tp;
int rw;
{
}
/*ARGSUSED*/
void
rconsreset(tp, rw)
struct tty *tp;
int rw;
{
}
int
rconspoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
return (ttpoll(dev, events, p));
}
/*ARGSUSED*/
int
rconsmmap (dev, off, prot)
dev_t dev;
int off;
int prot;
{
return 0;
}
void
rconsstrategy(bp)
struct buf *bp;
{
}
/* Called by real input device when there is input for rcons. Passes
input through line discpline interrupt routine... */
void
rcons_input (dev, ic)
dev_t dev;
int ic;
{
struct tty *tp;
int unit = minor (dev);
if (unit > NRASTERCONSOLE)
return;
tp = &rcons_tty [unit];
if (!(tp -> t_state & TS_ISOPEN)) {
return;
}
(*linesw [tp -> t_line].l_rint)(ic, tp);
}
#endif /* NRASTERCONSOLE > 0 */
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