NetBSD/sys/arch/sparc64/dev/fb.c

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/* $NetBSD: fb.c,v 1.15 1999/05/23 17:59:39 ad Exp $ */
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/*
* Copyright (c) 1992, 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.
*
* @(#)fb.c 8.1 (Berkeley) 6/11/93
*/
/*
* /dev/fb (indirect frame buffer driver). This is gross; we should
* just build cdevsw[] dynamically.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <machine/autoconf.h>
#include <machine/fbio.h>
#include <machine/kbd.h>
#include <machine/fbvar.h>
#include <machine/conf.h>
#include <machine/eeprom.h>
#include <sparc64/dev/pfourreg.h>
static struct fbdevice *devfb;
void
fb_unblank()
{
if (devfb)
(*devfb->fb_driver->fbd_unblank)(devfb->fb_device);
}
void
fb_attach(fb, isconsole)
struct fbdevice *fb;
int isconsole;
{
static int no_replace, seen_force;
/*
* We've already had a framebuffer forced into /dev/fb. Don't
* allow any more, even if this is the console.
*/
if (seen_force) {
if (devfb) { /* sanity */
printf("%s: /dev/fb already full\n",
fb->fb_device->dv_xname);
return;
} else
seen_force = 0;
}
/*
* Check to see if we're being forced into /dev/fb.
*/
if (fb->fb_flags & FB_FORCE) {
if (devfb)
printf("%s: forcefully replacing %s\n",
fb->fb_device->dv_xname,
devfb->fb_device->dv_xname);
devfb = fb;
seen_force = no_replace = 1;
goto attached;
}
/*
* Check to see if we're the console. If we are, then replace
* any currently existing framebuffer.
*/
if (isconsole) {
if (devfb)
printf("%s: replacing %s\n", fb->fb_device->dv_xname,
devfb->fb_device->dv_xname);
devfb = fb;
no_replace = 1;
goto attached;
}
/*
* For the final case, we check to see if we can replace an
* existing framebuffer, if not, say so and return.
*/
if (no_replace) {
if (devfb) { /* sanity */
printf("%s: /dev/fb already full\n",
fb->fb_device->dv_xname);
return;
} else
no_replace = 0;
}
if (devfb)
printf("%s: replacing %s\n", fb->fb_device->dv_xname,
devfb->fb_device->dv_xname);
devfb = fb;
attached:
printf("%s: attached to /dev/fb\n", devfb->fb_device->dv_xname);
}
int
fbopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
if (devfb == NULL)
return (ENXIO);
return (devfb->fb_driver->fbd_open)(dev, flags, mode, p);
}
int
fbclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return (devfb->fb_driver->fbd_close)(dev, flags, mode, p);
}
int
fbioctl(dev, cmd, data, flags, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flags;
struct proc *p;
{
return (devfb->fb_driver->fbd_ioctl)(dev, cmd, data, flags, p);
}
int
fbpoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
return (devfb->fb_driver->fbd_poll)(dev, events, p);
}
int
fbmmap(dev, off, prot)
dev_t dev;
int off, prot;
{
int (*map)__P((dev_t, int, int)) = devfb->fb_driver->fbd_mmap;
if (map == NULL)
return (-1LL);
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return (map(dev, off, prot));
}
void
fb_setsize(fb, depth, def_width, def_height, node)
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struct fbdevice *fb;
int depth, def_width, def_height, node;
{
fb->fb_type.fb_width = getpropint(node, "width", def_width);
fb->fb_type.fb_height = getpropint(node, "height", def_height);
fb->fb_linebytes = getpropint(node, "linebytes",
(fb->fb_type.fb_width * depth) / 8);
}
#ifdef RASTERCONSOLE
#include <machine/kbd.h>
static void fb_bell __P((int));
#if !defined(RASTERCONS_FULLSCREEN)
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static int a2int __P((char *, int));
static int
a2int(cp, deflt)
register char *cp;
register int deflt;
{
register int i = 0;
if (*cp == '\0')
return (deflt);
while (*cp != '\0')
i = i * 10 + *cp++ - '0';
return (i);
}
#endif
static void
fb_bell(on)
int on;
{
(void)kbd_docmd(on?KBD_CMD_BELL:KBD_CMD_NOBELL, 0);
}
void
fbrcons_init(fb)
struct fbdevice *fb;
{
struct rconsole *rc = &fb->fb_rcons;
struct rasops_info *ri = &fb->fb_rinfo;
int maxrow, maxcol;
/* Set up what rasops needs to know about */
bzero(ri, sizeof *ri);
ri->ri_stride = fb->fb_linebytes;
ri->ri_bits = (caddr_t)fb->fb_pixels;
ri->ri_depth = fb->fb_type.fb_depth;
ri->ri_width = fb->fb_type.fb_width;
ri->ri_height = fb->fb_type.fb_height;
/* These'll be sanity checked by rasops... */
maxrow = 0;
maxcol = 0;
#if !defined(RASTERCONS_FULLSCREEN)
maxcol = a2int(getpropstring(optionsnode, "screen-#columns"), 80);
maxrow = a2int(getpropstring(optionsnode, "screen-#rows"), 34);
#endif /* !RASTERCONS_FULLSCREEN */
/*
* XXX until somebody actually sets the colormap after a call to
* rasops_init() with ri->ri_cmap, we can only do mono..
*/
ri->ri_forcemono = 1;
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/* Get operations set and connect to rcons */
if (rasops_init(ri, maxrow, maxcol, 0, 1))
panic("fbrcons_init: rasops_init failed!");
rc->rc_ops = &ri->ri_ops;
rc->rc_cookie = ri;
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rc->rc_bell = fb_bell;
rc->rc_maxcol = ri->ri_cols;
rc->rc_maxrow = ri->ri_rows;
rc->rc_width = ri->ri_emuwidth;
rc->rc_height = ri->ri_emuheight;
rc->rc_row = 0;
rc->rc_col = 0;
rcons_init(rc, 0);
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/* Hook up virtual console */
v_putc = rcons_cnputc;
}
int
fbrcons_rows()
{
return (devfb ? devfb->fb_rcons.rc_maxrow : 0);
}
int
fbrcons_cols()
{
return (devfb ? devfb->fb_rcons.rc_maxcol : 0);
}
#endif /* RASTERCONSOLE */