NetBSD-5.0.2/sys/dev/sbus/cgthree_sbus.c
/* $NetBSD: cgthree_sbus.c,v 1.21 2008/04/28 20:23:57 martin Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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.
*
* @(#)cgthree.c 8.2 (Berkeley) 10/30/93
*/
/*
* color display (cgthree) driver.
*
* Does not handle interrupts, even though they can occur.
*
* XXX should defer colormap updates to vertical retrace interrupts
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.21 2008/04/28 20:23:57 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.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 <sys/bus.h>
#include <machine/autoconf.h>
#include <dev/sun/fbio.h>
#include <dev/sun/fbvar.h>
#include <dev/sun/btreg.h>
#include <dev/sun/btvar.h>
#include <dev/sun/cgthreereg.h>
#include <dev/sun/cgthreevar.h>
#include <dev/sbus/sbusvar.h>
/* Allocate an `sbusdev' in addition to the cgthree softc */
struct cgthree_sbus_softc {
struct cgthree_softc bss_softc;
struct sbusdev bss_sd;
};
/* autoconfiguration driver */
static int cgthreematch_sbus(struct device *, struct cfdata *, void *);
static void cgthreeattach_sbus(struct device *, struct device *, void *);
CFATTACH_DECL(cgthree_sbus, sizeof(struct cgthree_softc),
cgthreematch_sbus, cgthreeattach_sbus, NULL, NULL);
/*
* Match a cgthree.
*/
int
cgthreematch_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
cgthreeattach_sbus(parent, self, args)
struct device *parent, *self;
void *args;
{
struct cgthree_softc *sc = (struct cgthree_softc *)self;
struct sbusdev *sd = &((struct cgthree_sbus_softc *)self)->bss_sd;
struct sbus_attach_args *sa = args;
struct fbdevice *fb = &sc->sc_fb;
int node = sa->sa_node;
int isconsole;
const char *name;
bus_space_handle_t bh;
/* Remember cookies for cgthree_mmap() */
sc->sc_bustag = sa->sa_bustag;
sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
fb->fb_device = &sc->sc_dev;
fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags & FB_USERMASK;
fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
fb->fb_type.fb_depth = 8;
fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
/*
* When the ROM has mapped in a cgthree display, the address
* maps only the video RAM, so in any case we have to map the
* 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 + CG3REG_REG,
sizeof(struct fbcontrol),
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map control registers\n");
return;
}
sc->sc_fbc = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh);
isconsole = fb_is_console(node);
name = prom_getpropstring(node, "model");
if (name == NULL)
name = "cgthree";
if (sa->sa_npromvaddrs != 0)
fb->fb_pixels = (void *)(u_long)sa->sa_promvaddrs[0];
if (isconsole && 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 + CG3REG_MEM,
ramsize,
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map pixels\n");
return;
}
fb->fb_pixels = (char *)bus_space_vaddr(sa->sa_bustag, bh);
}
sbus_establish(sd, &sc->sc_dev);
cgthreeattach(sc, name, isconsole);
}