NetBSD-5.0.2/sys/arch/sparc/dev/cgsix_obio.c
/* $NetBSD: cgsix_obio.c,v 1.22 2008/04/28 20:23:35 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.
*/
/*
* color display (cgsix) driver; sun4 obio bus front-end.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cgsix_obio.c,v 1.22 2008/04/28 20:23:35 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>
#ifdef DEBUG
#include <sys/proc.h>
#include <sys/syslog.h>
#endif
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/eeprom.h>
#include <dev/sun/fbio.h>
#include <dev/sun/fbvar.h>
#include <dev/sun/btreg.h>
#include <dev/sun/btvar.h>
#include <dev/sun/cgsixreg.h>
#include <dev/sun/cgsixvar.h>
#include <dev/sun/pfourreg.h>
/* autoconfiguration driver */
static int cgsixmatch(struct device *, struct cfdata *, void *);
static void cgsixattach(struct device *, struct device *, void *);
static int cg6_pfour_probe(void *, void *);
CFATTACH_DECL(cgsix_obio, sizeof(struct cgsix_softc),
cgsixmatch, cgsixattach, NULL, NULL);
/*
* Match a cgsix.
*/
static int
cgsixmatch(struct device *parent, struct cfdata *cf, void *aux)
{
union obio_attach_args *uoba = aux;
struct obio4_attach_args *oba;
if (uoba->uoba_isobio4 == 0)
return (0);
oba = &uoba->uoba_oba4;
return (bus_space_probe(oba->oba_bustag,
oba->oba_paddr + CGSIX_FHC_OFFSET,
4, /* probe size */
0, /* offset */
0, /* flags */
cg6_pfour_probe, NULL));
}
static int
cg6_pfour_probe(void *vaddr, void *arg)
{
return (fb_pfour_id(vaddr) == PFOUR_ID_FASTCOLOR);
}
/*
* Attach a display.
*/
static void
cgsixattach(struct device *parent, struct device *self, void *aux)
{
struct cgsix_softc *sc = (struct cgsix_softc *)self;
union obio_attach_args *uoba = aux;
struct obio4_attach_args *oba;
struct eeprom *eep = (struct eeprom *)eeprom_va;
struct fbdevice *fb = &sc->sc_fb;
bus_space_handle_t bh;
int constype, isconsole;
const char *name;
oba = &uoba->uoba_oba4;
/* Remember cookies for cgsix_mmap() */
sc->sc_bustag = oba->oba_bustag;
sc->sc_paddr = (bus_addr_t)oba->oba_paddr;
fb->fb_device = &sc->sc_dev;
fb->fb_type.fb_type = FBTYPE_SUNFAST_COLOR;
fb->fb_flags = device_cfdata(&sc->sc_dev)->cf_flags & FB_USERMASK;
fb->fb_type.fb_depth = 8;
fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900);
sc->sc_ramsize = 1024 * 1024; /* All our cgsix's are 1MB */
/*
* Dunno what the PROM has mapped, though obviously it must have
* the video RAM mapped. Just map what we care about for ourselves
* (the FHC, THC, and Brooktree registers).
*/
if (bus_space_map(oba->oba_bustag,
oba->oba_paddr + CGSIX_BT_OFFSET,
sizeof(*sc->sc_bt),
BUS_SPACE_MAP_LINEAR,
&bh) != 0) {
printf("%s: cannot map brooktree registers\n", self->dv_xname);
return;
}
sc->sc_bt = (struct bt_regs *)bh;
if (bus_space_map(oba->oba_bustag,
oba->oba_paddr + CGSIX_FHC_OFFSET,
sizeof(*sc->sc_fhc),
BUS_SPACE_MAP_LINEAR,
&bh) != 0) {
printf("%s: cannot map FHC registers\n", self->dv_xname);
return;
}
sc->sc_fhc = (int *)bh;
if (bus_space_map(oba->oba_bustag,
oba->oba_paddr + CGSIX_THC_OFFSET,
sizeof(*sc->sc_thc),
BUS_SPACE_MAP_LINEAR,
&bh) != 0) {
printf("%s: cannot map THC registers\n", self->dv_xname);
return;
}
sc->sc_thc = (struct cg6_thc *)bh;
if (bus_space_map(oba->oba_bustag,
oba->oba_paddr + CGSIX_TEC_OFFSET,
sizeof(*sc->sc_tec),
BUS_SPACE_MAP_LINEAR,
&bh) != 0) {
printf("%s: cannot map TEC registers\n", self->dv_xname);
return;
}
sc->sc_tec = (struct cg6_tec_xxx *)bh;
if (bus_space_map(oba->oba_bustag,
oba->oba_paddr + CGSIX_FBC_OFFSET,
sizeof(*sc->sc_fbc),
BUS_SPACE_MAP_LINEAR,
&bh) != 0) {
printf("%s: cannot map FBC registers\n", self->dv_xname);
return;
}
sc->sc_fbc = (struct cg6_fbc *)bh;
if (fb_pfour_id(sc->sc_fhc) == PFOUR_ID_FASTCOLOR) {
fb->fb_flags |= FB_PFOUR;
name = "cgsix/p4";
} else
name = "cgsix";
constype = (fb->fb_flags & FB_PFOUR) ? EE_CONS_P4OPT : EE_CONS_COLOR;
/*
* Check to see if this is the console if there's no eeprom info
* to be found, or if it's the correct framebuffer type.
*/
if (eep == NULL || eep->eeConsole == constype)
isconsole = fb_is_console(0);
else
isconsole = 0;
if (isconsole && cgsix_use_rasterconsole) {
if (bus_space_map(oba->oba_bustag,
oba->oba_paddr + CGSIX_RAM_OFFSET,
sc->sc_ramsize,
BUS_SPACE_MAP_LINEAR,
&bh) != 0) {
printf("%s: cannot map pixels\n", self->dv_xname);
return;
}
sc->sc_fb.fb_pixels = (void *)bh;
}
cg6attach(sc, name, isconsole);
}