296 lines
8.6 KiB
C
296 lines
8.6 KiB
C
/* $NetBSD: bwtwo.c,v 1.8 2003/06/29 22:30:46 fvdl Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)bwtwo.c 8.1 (Berkeley) 6/11/93
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*/
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/*
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* black & white display (bwtwo) driver.
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*
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* Does not handle interrupts, even though they can occur.
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*
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* P4 and overlay plane support by Jason R. Thorpe <thorpej@NetBSD.ORG>.
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* Overlay plane handling hints and ideas provided by Brad Spencer.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: bwtwo.c,v 1.8 2003/06/29 22:30:46 fvdl Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/tty.h>
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#include <sys/conf.h>
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#include <machine/autoconf.h>
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#include <machine/eeprom.h>
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#include <dev/sun/fbio.h>
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#include <dev/sun/fbvar.h>
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#include <dev/sun/btreg.h>
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#include <dev/sun/bwtworeg.h>
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#include <dev/sun/bwtwovar.h>
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#include <dev/sun/pfourreg.h>
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extern struct cfdriver bwtwo_cd;
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dev_type_open(bwtwoopen);
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dev_type_ioctl(bwtwoioctl);
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dev_type_mmap(bwtwommap);
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const struct cdevsw bwtwo_cdevsw = {
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bwtwoopen, nullclose, noread, nowrite, bwtwoioctl,
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nostop, notty, nopoll, bwtwommap, nokqfilter,
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};
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/* XXX we do not handle frame buffer interrupts (do not know how) */
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static void bwtwounblank(struct device *);
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/* frame buffer generic driver */
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static struct fbdriver bwtwofbdriver = {
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bwtwounblank, bwtwoopen, nullclose, bwtwoioctl, nopoll, bwtwommap,
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nokqfilter
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};
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int
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bwtwo_pfour_probe(vaddr, arg)
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void *vaddr;
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void *arg;
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{
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struct cfdata *cf = arg;
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switch (fb_pfour_id(vaddr)) {
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case PFOUR_ID_BW:
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case PFOUR_ID_COLOR8P1: /* bwtwo in ... */
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case PFOUR_ID_COLOR24: /* ...overlay plane */
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/* This is wrong; should be done in bwtwo_attach() */
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cf->cf_flags |= FB_PFOUR;
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/* FALLTHROUGH */
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case PFOUR_NOTPFOUR:
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return (1);
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}
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return (0);
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}
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void
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bwtwoattach(sc, name, isconsole)
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struct bwtwo_softc *sc;
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char *name;
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int isconsole;
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{
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struct fbdevice *fb = &sc->sc_fb;
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/* Fill in the remaining fbdevice values */
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fb->fb_driver = &bwtwofbdriver;
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fb->fb_device = &sc->sc_dev;
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fb->fb_type.fb_type = FBTYPE_SUN2BW;
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fb->fb_type.fb_cmsize = 0;
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fb->fb_type.fb_size = fb->fb_type.fb_height * fb->fb_linebytes;
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printf(": %s, %d x %d", name,
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fb->fb_type.fb_width, fb->fb_type.fb_height);
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/* Insure video is enabled */
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sc->sc_set_video(sc, 1);
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if (isconsole) {
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printf(" (console)\n");
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#ifdef RASTERCONSOLE
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/*
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* XXX rcons doesn't seem to work properly on the overlay
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* XXX plane. This is a temporary kludge until someone
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* XXX fixes it.
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*/
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if ((fb->fb_flags & FB_PFOUR) == 0 ||
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(sc->sc_ovtype == BWO_NONE))
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fbrcons_init(fb);
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#endif
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} else
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printf("\n");
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if ((fb->fb_flags & FB_PFOUR) && (sc->sc_ovtype != BWO_NONE)) {
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char *ovnam;
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switch (sc->sc_ovtype) {
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case BWO_CGFOUR:
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ovnam = "cgfour";
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break;
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case BWO_CGEIGHT:
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ovnam = "cgeight";
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break;
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default:
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ovnam = "unknown";
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break;
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}
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printf("%s: %s overlay plane\n", sc->sc_dev.dv_xname, ovnam);
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}
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/*
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* If we're on an overlay plane of a color framebuffer,
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* then we don't force the issue in fb_attach() because
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* we'd like the color framebuffer to actually be the
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* "console framebuffer". We're only around to speed
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* up rconsole.
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*/
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if ((fb->fb_flags & FB_PFOUR) && (sc->sc_ovtype != BWO_NONE ))
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fb_attach(fb, 0);
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else
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fb_attach(fb, isconsole);
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}
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int
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bwtwoopen(dev, flags, mode, p)
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dev_t dev;
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int flags, mode;
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struct proc *p;
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{
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int unit = minor(dev);
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if (unit >= bwtwo_cd.cd_ndevs || bwtwo_cd.cd_devs[unit] == NULL)
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return (ENXIO);
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return (0);
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}
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int
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bwtwoioctl(dev, cmd, data, flags, p)
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dev_t dev;
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u_long cmd;
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caddr_t data;
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int flags;
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struct proc *p;
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{
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struct bwtwo_softc *sc = bwtwo_cd.cd_devs[minor(dev)];
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switch (cmd) {
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case FBIOGTYPE:
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*(struct fbtype *)data = sc->sc_fb.fb_type;
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break;
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case FBIOGVIDEO:
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*(int *)data = sc->sc_get_video(sc);
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break;
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case FBIOSVIDEO:
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sc->sc_set_video(sc, (*(int *)data));
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break;
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default:
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return (ENOTTY);
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}
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return (0);
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}
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static void
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bwtwounblank(dev)
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struct device *dev;
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{
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struct bwtwo_softc *sc = (struct bwtwo_softc *)dev;
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sc->sc_set_video(sc, 1);
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}
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/*
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* Return the address that would map the given device at the given
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* offset, allowing for the given protection, or return -1 for error.
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*/
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paddr_t
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bwtwommap(dev, off, prot)
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dev_t dev;
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off_t off;
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int prot;
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{
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struct bwtwo_softc *sc = bwtwo_cd.cd_devs[minor(dev)];
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if (off & PGOFSET)
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panic("bwtwommap");
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if (off >= sc->sc_fb.fb_type.fb_size)
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return (-1);
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return (bus_space_mmap(sc->sc_bustag,
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sc->sc_paddr, sc->sc_pixeloffset + off,
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prot, BUS_SPACE_MAP_LINEAR));
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}
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