/* $NetBSD: cgsix_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej Exp $ */

/* $NetBSD: cgsix_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej 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; Sbus bus front-end.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cgsix_sbus.c,v 1.32 2022/09/25 18:03:04 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/ioctl.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 <sys/bus.h>
#include <machine/autoconf.h>

#include <dev/sbus/sbusvar.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>

/* autoconfiguration driver */
static int cgsixmatch(device_t, cfdata_t, void *);
static void cgsixattach(device_t, device_t, void *);

CFATTACH_DECL_NEW(cgsix_sbus, sizeof(struct cgsix_softc),
cgsixmatch, cgsixattach, NULL, NULL);

/*
* Match a cgsix.
*/
int
cgsixmatch(device_t parent, cfdata_t cf, void *aux)
{
struct sbus_attach_args *sa = aux;

return (strcmp(cf->cf_name, sa->sa_name) == 0) ? 100 : 0;
}

/*
* Attach a cgsix.
*/
void
cgsixattach(device_t parent, device_t self, void *aux)
{
struct cgsix_softc *sc = device_private(self);
struct sbus_attach_args *sa = aux;
struct fbdevice *fb = &sc->sc_fb;
int node, isconsole;
const char *name;
bus_space_handle_t bh;

/* Remember cookies for cgsix_mmap() */
sc->sc_bustag = sa->sa_bustag;
sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
sc->sc_dev = self;

node = sa->sa_node;

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_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);

/*
* 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 (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CGSIX_BT_OFFSET,
sizeof(*sc->sc_bt),
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map brooktree registers\n");
return;
}
sc->sc_bt = (struct bt_regs *)bus_space_vaddr(sa->sa_bustag, bh);

if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CGSIX_FHC_OFFSET,
sizeof(*sc->sc_fhc),
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map FHC registers\n");
return;
}
sc->sc_fhc = (int *)bus_space_vaddr(sa->sa_bustag, bh);

if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CGSIX_THC_OFFSET,
sizeof(*sc->sc_thc),
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map THC registers\n");
return;
}
sc->sc_thc = (struct cg6_thc *)bus_space_vaddr(sa->sa_bustag, bh);

if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CGSIX_TEC_OFFSET,
sizeof(*sc->sc_tec),
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map TEC registers\n");
return;
}
sc->sc_tec = (struct cg6_tec_xxx *)bus_space_vaddr(sa->sa_bustag, bh);

if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CGSIX_FBC_OFFSET,
sizeof(*sc->sc_fbc),
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error_dev(self, "cannot map FBC registers\n");
return;
}
sc->sc_fbc = (struct cg6_fbc *)bus_space_vaddr(sa->sa_bustag, bh);

name = prom_getpropstring(node, "model");

isconsole = fb_is_console(node);

/*
* we need the address of the framebuffer, no matter if we're console or
* not.
*/
sc->sc_ramsize = prom_getpropint(node, "vmsize", 1) * 1024 * 1024;
if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot,
sa->sa_offset + CGSIX_RAM_OFFSET,
sc->sc_ramsize,
BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_LARGE,
&bh) != 0) {
aprint_error_dev(self, "cannot map pixels\n");
return;
}
sc->sc_fb.fb_pixels = (void *)bus_space_vaddr(sa->sa_bustag, bh);

cg6attach(sc, name, isconsole);
}