NetBSD-5.0.2/sys/arch/sun2/dev/bwtwo_any.c
/* $NetBSD: bwtwo_any.c,v 1.16 2008/04/28 20:23:37 martin Exp $ */
/*-
* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe and Matthew Fredette.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* 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. 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.
*
* @(#)bwtwo.c 8.1 (Berkeley) 6/11/93
*/
/*
* black&white display (bwtwo) driver.
*
* Does not handle interrupts, even though they can occur.
*
* P4 and overlay plane support by Jason R. Thorpe <thorpej@NetBSD.org>.
* Overlay plane handling hints and ideas provided by Brad Spencer.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: bwtwo_any.c,v 1.16 2008/04/28 20:23:37 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <machine/autoconf.h>
#include <sun2/sun2/control.h>
#include <dev/sun/fbio.h>
#include <dev/sun/fbvar.h>
#include <dev/sun/btreg.h>
#include <sun2/dev/bwtworeg.h>
#include <dev/sun/bwtwovar.h>
/* autoconfiguration driver */
static void bwtwoattach_any (struct device *, struct device *, void *);
static int bwtwomatch_any (struct device *, struct cfdata *, void *);
struct bwtwosun2_softc {
struct bwtwo_softc sc;
bus_space_handle_t bh;
};
CFATTACH_DECL(bwtwo_obio, sizeof(struct bwtwosun2_softc),
bwtwomatch_any, bwtwoattach_any, NULL, NULL);
CFATTACH_DECL(bwtwo_obmem, sizeof(struct bwtwosun2_softc),
bwtwomatch_any, bwtwoattach_any, NULL, NULL);
static int bwtwo_get_video_sun2(struct bwtwo_softc *);
static void bwtwo_set_video_sun2(struct bwtwo_softc *, int);
extern int fbnode;
static int
bwtwomatch_any(struct device *parent, struct cfdata *cf, void *aux)
{
struct mainbus_attach_args *ma = aux;
bus_space_handle_t bh;
int matched;
/* Make sure there is something there... */
if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG,
sizeof(struct bwtworeg), 0, &bh))
return (0);
matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0);
bus_space_unmap(ma->ma_bustag, bh, sizeof(struct bwtworeg));
return (matched);
}
static void
bwtwoattach_any(struct device *parent, struct device *self, void *aux)
{
struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)self;
struct bwtwo_softc *sc = &scsun2->sc;
struct mainbus_attach_args *ma = aux;
struct fbdevice *fb = &sc->sc_fb;
bus_space_handle_t bh;
int isconsole;
const char *name;
/* Remember cookies for bwtwo_mmap() */
sc->sc_bustag = ma->ma_bustag;
sc->sc_paddr = ma->ma_paddr;
fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags;
fb->fb_type.fb_depth = 1;
fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900);
isconsole = fb_is_console(0);
/* A plain bwtwo */
sc->sc_reg = NULL;
fb->fb_pfour = NULL;
name = "bwtwo";
sc->sc_pixeloffset = BWREG_MEM;
sc->sc_get_video = bwtwo_get_video_sun2;
sc->sc_set_video = bwtwo_set_video_sun2;
/* Map the registers. */
if (bus_space_map(ma->ma_bustag, ma->ma_paddr + BWREG_REG,
sizeof(struct bwtworeg), 0, &scsun2->bh)) {
printf("%s: cannot map regs\n", self->dv_xname);
return;
}
if (isconsole) {
int ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
if (bus_space_map(ma->ma_bustag,
ma->ma_paddr + sc->sc_pixeloffset,
ramsize,
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
printf("%s: cannot map pixels\n", self->dv_xname);
return;
}
sc->sc_fb.fb_pixels = (char *)bh;
}
bwtwoattach(sc, name, isconsole);
}
static void
bwtwo_set_video_sun2(struct bwtwo_softc *sc, int enable)
{
struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc;
unsigned char cr;
cr = bus_space_read_1(sc->sc_bustag, scsun2->bh, 0);
bus_space_write_1(sc->sc_bustag, scsun2->bh, 0,
(enable ?
(cr | BW2_CR_ENABLE_VIDEO) :
(cr & ~BW2_CR_ENABLE_VIDEO)));
return;
}
static int
bwtwo_get_video_sun2(struct bwtwo_softc *sc)
{
struct bwtwosun2_softc *scsun2 = (struct bwtwosun2_softc *)sc;
return ((bus_space_read_1(sc->sc_bustag, scsun2->bh, 0) &
BW2_CR_ENABLE_VIDEO) != 0);
}