243 lines
8.3 KiB
C
243 lines
8.3 KiB
C
/* $NetBSD: bwtwo_sbus.c,v 1.12 2003/04/24 05:06:32 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.
|
|
*
|
|
* 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 NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation 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 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. 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.
|
|
*
|
|
* @(#)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_sbus.c,v 1.12 2003/04/24 05:06:32 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 <machine/eeprom.h>
|
|
|
|
#include <dev/sbus/sbusvar.h>
|
|
|
|
#include <dev/sun/fbio.h>
|
|
#include <dev/sun/fbvar.h>
|
|
#include <dev/sun/btreg.h>
|
|
#include <dev/sun/bwtworeg.h>
|
|
#include <dev/sun/bwtwovar.h>
|
|
#include <dev/sun/pfourreg.h>
|
|
|
|
/* autoconfiguration driver */
|
|
static void bwtwoattach_sbus (struct device *, struct device *, void *);
|
|
static int bwtwomatch_sbus (struct device *, struct cfdata *, void *);
|
|
|
|
/* Allocate an `sbusdev' in addition to the bwtwo softc */
|
|
struct bwtwo_sbus_softc {
|
|
struct bwtwo_softc bss_softc;
|
|
struct sbusdev bss_sd;
|
|
};
|
|
|
|
CFATTACH_DECL(bwtwo_sbus, sizeof(struct bwtwo_sbus_softc),
|
|
bwtwomatch_sbus, bwtwoattach_sbus, NULL, NULL);
|
|
|
|
static int bwtwo_get_video (struct bwtwo_softc *);
|
|
static void bwtwo_set_video (struct bwtwo_softc *, int);
|
|
|
|
/*
|
|
* Match a bwtwo.
|
|
*/
|
|
static int
|
|
bwtwomatch_sbus(parent, cf, aux)
|
|
struct device *parent;
|
|
struct cfdata *cf;
|
|
void *aux;
|
|
{
|
|
struct sbus_attach_args *sa = aux;
|
|
|
|
return (strcmp(cf->cf_name, sa->sa_name) == 0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Attach a display. We need to notice if it is the console, too.
|
|
*/
|
|
void
|
|
bwtwoattach_sbus(parent, self, args)
|
|
struct device *parent, *self;
|
|
void *args;
|
|
{
|
|
struct bwtwo_softc *sc = (struct bwtwo_softc *)self;
|
|
struct sbusdev *sd = &((struct bwtwo_sbus_softc *)self)->bss_sd;
|
|
struct sbus_attach_args *sa = args;
|
|
struct fbdevice *fb = &sc->sc_fb;
|
|
bus_space_handle_t bh;
|
|
int isconsole, node;
|
|
char *name;
|
|
|
|
node = sa->sa_node;
|
|
|
|
/* Remember cookies for bwtwo_mmap() */
|
|
sc->sc_bustag = sa->sa_bustag;
|
|
sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
|
|
|
|
fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags;
|
|
fb->fb_type.fb_depth = 1;
|
|
fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
|
|
|
|
/*
|
|
* When the ROM has mapped in a bwtwo display, the address
|
|
* maps only the video RAM, hence we always map the control
|
|
* registers ourselves. We only need the video RAM if we are
|
|
* going to print characters via rconsole.
|
|
*/
|
|
if (sbus_bus_map(sa->sa_bustag,
|
|
sa->sa_slot,
|
|
sa->sa_offset + BWREG_REG,
|
|
sizeof(struct fbcontrol),
|
|
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
|
|
printf("%s: cannot map control registers\n", self->dv_xname);
|
|
return;
|
|
}
|
|
sc->sc_reg = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh);
|
|
fb->fb_pfour = NULL;
|
|
|
|
sc->sc_pixeloffset = BWREG_MEM;
|
|
|
|
isconsole = fb_is_console(node);
|
|
name = PROM_getpropstring(node, "model");
|
|
|
|
/* Assume `bwtwo at sbus' only happens at sun4c's */
|
|
sc->sc_get_video = bwtwo_get_video;
|
|
sc->sc_set_video = bwtwo_set_video;
|
|
|
|
if (sa->sa_npromvaddrs != 0)
|
|
sc->sc_fb.fb_pixels = (caddr_t)(u_long)sa->sa_promvaddrs[0];
|
|
if (isconsole && sc->sc_fb.fb_pixels == NULL) {
|
|
int ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
|
|
if (sbus_bus_map(sa->sa_bustag, sa->sa_slot,
|
|
sa->sa_offset + 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 *)bus_space_vaddr(sa->sa_bustag, bh);
|
|
}
|
|
|
|
sbus_establish(sd, &sc->sc_dev);
|
|
bwtwoattach(sc, name, isconsole);
|
|
}
|
|
|
|
static void
|
|
bwtwo_set_video(sc, enable)
|
|
struct bwtwo_softc *sc;
|
|
int enable;
|
|
{
|
|
|
|
if (enable)
|
|
/*
|
|
* If the we're the console the PROM will have taken care
|
|
* of the FBC_TIMING bit and video control parameters. We
|
|
* simply turn on FBC_TIMING; in case other video parameters
|
|
* are necessary, here is a set read from an ELC:
|
|
* [0xbb,0x2b,0x4,0x14,0xae,0x3,0xa8,0x24,0x1,0x5,0xff,0x1]
|
|
*/
|
|
sc->sc_reg->fbc_ctrl |= FBC_VENAB | FBC_TIMING;
|
|
else
|
|
sc->sc_reg->fbc_ctrl &= ~FBC_VENAB;
|
|
}
|
|
|
|
static int
|
|
bwtwo_get_video(sc)
|
|
struct bwtwo_softc *sc;
|
|
{
|
|
|
|
return ((sc->sc_reg->fbc_ctrl & FBC_VENAB) != 0);
|
|
}
|