223 lines
7.7 KiB
C
223 lines
7.7 KiB
C
/* $NetBSD: bwtwo_any.c,v 1.10 2003/08/07 16:29:52 agc 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 and Matthew Fredette.
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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. 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_any.c,v 1.10 2003/08/07 16:29:52 agc 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 <sun2/sun2/control.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 <sun2/dev/bwtworeg.h>
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#include <dev/sun/bwtwovar.h>
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/* autoconfiguration driver */
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static void bwtwoattach_any (struct device *, struct device *, void *);
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static int bwtwomatch_any (struct device *, struct cfdata *, void *);
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struct bwtwosun2_softc {
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struct bwtwo_softc sc;
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bus_space_handle_t bh;
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};
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CFATTACH_DECL(bwtwo_obio, sizeof(struct bwtwosun2_softc),
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bwtwomatch_any, bwtwoattach_any, NULL, NULL);
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CFATTACH_DECL(bwtwo_obmem, sizeof(struct bwtwosun2_softc),
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bwtwomatch_any, bwtwoattach_any, NULL, NULL);
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static int bwtwo_get_video_sun2 __P((struct bwtwo_softc *));
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static void bwtwo_set_video_sun2 __P((struct bwtwo_softc *, int));
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extern int fbnode;
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static int
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bwtwomatch_any(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct mainbus_attach_args *ma = aux;
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bus_space_handle_t bh;
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int matched;
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/* Make sure there is something there... */
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if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg),
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0, &bh))
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return (0);
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matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0);
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bus_space_unmap(ma->ma_bustag, bh, sizeof(struct bwtworeg));
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return (matched);
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}
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static void
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bwtwoattach_any(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)self;
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struct bwtwo_softc *sc = &scsun2->sc;
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struct mainbus_attach_args *ma = aux;
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struct fbdevice *fb = &sc->sc_fb;
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bus_space_handle_t bh;
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int isconsole;
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char *name;
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/* Remember cookies for bwtwo_mmap() */
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sc->sc_bustag = ma->ma_bustag;
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sc->sc_paddr = ma->ma_paddr;
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fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags;
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fb->fb_type.fb_depth = 1;
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fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900);
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isconsole = fb_is_console(0);
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/* A plain bwtwo */
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sc->sc_reg = NULL;
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fb->fb_pfour = NULL;
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name = "bwtwo";
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sc->sc_pixeloffset = BWREG_MEM;
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sc->sc_get_video = bwtwo_get_video_sun2;
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sc->sc_set_video = bwtwo_set_video_sun2;
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/* Map the registers. */
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if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG, sizeof(struct bwtworeg),
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0, &scsun2->bh)) {
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printf("%s: cannot map regs\n", self->dv_xname);
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return;
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}
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if (isconsole) {
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int ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
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if (bus_space_map(ma->ma_bustag, ma->ma_paddr + sc->sc_pixeloffset,
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ramsize,
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BUS_SPACE_MAP_LINEAR, &bh) != 0) {
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printf("%s: cannot map pixels\n", self->dv_xname);
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return;
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}
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sc->sc_fb.fb_pixels = (char *)bh;
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}
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bwtwoattach(sc, name, isconsole);
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}
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static void
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bwtwo_set_video_sun2(sc, enable)
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struct bwtwo_softc *sc;
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int enable;
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{
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struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc;
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unsigned char cr;
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cr = bus_space_read_1(sc->sc_bustag, scsun2->bh, 0);
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bus_space_write_1(sc->sc_bustag, scsun2->bh, 0, (enable ?
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(cr | BW2_CR_ENABLE_VIDEO) :
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(cr & ~BW2_CR_ENABLE_VIDEO)));
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return;
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}
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static int
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bwtwo_get_video_sun2(sc)
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struct bwtwo_softc *sc;
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{
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struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc;
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return ((bus_space_read_1(sc->sc_bustag, scsun2->bh, 0) & BW2_CR_ENABLE_VIDEO) != 0);
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}
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