NetBSD-5.0.2/sys/arch/mac68k/obio/grf_obio.c
/* $NetBSD: grf_obio.c,v 1.57 2007/10/17 19:55:16 garbled Exp $ */
/*
* Copyright (C) 1998 Scott Reynolds
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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) 1995 Allen Briggs. All rights reserved.
*
* 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 Allen Briggs.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Graphics display driver for the Macintosh internal video for machines
* that don't map it into a fake nubus card.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: grf_obio.c,v 1.57 2007/10/17 19:55:16 garbled Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/malloc.h>
#include <sys/mman.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/grfioctl.h>
#include <machine/viareg.h>
#include <machine/video.h>
#include <mac68k/nubus/nubus.h>
#include <mac68k/obio/obiovar.h>
#include <mac68k/dev/grfvar.h>
static int grfiv_mode(struct grf_softc *, int, void *);
static int grfiv_match(struct device *, struct cfdata *, void *);
static void grfiv_attach(struct device *, struct device *, void *);
CFATTACH_DECL(intvid, sizeof(struct grfbus_softc),
grfiv_match, grfiv_attach, NULL, NULL);
#define DAFB_BASE 0xf9000000
#define DAFB_CONTROL_BASE 0xf9800000
#define CIVIC_BASE 0x50100000
#define CIVIC_CONTROL_BASE 0x50036000
#define VALKYRIE_BASE 0xf9000000
#define VALKYRIE_CONTROL_BASE 0x50f2a000
static int
grfiv_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct obio_attach_args *oa = (struct obio_attach_args *)aux;
bus_space_handle_t bsh;
int found;
u_int base;
found = 1;
switch (current_mac_model->class) {
case MACH_CLASSQ2:
if (current_mac_model->machineid != MACH_MACLC575) {
base = VALKYRIE_CONTROL_BASE;
if (bus_space_map(oa->oa_tag, base, 0x40, 0, &bsh))
return 0;
/* Disable interrupts */
bus_space_write_1(oa->oa_tag, bsh, 0x18, 0x1);
bus_space_unmap(oa->oa_tag, bsh, 0x40);
break;
}
/*
* Note: the only system in this class that does not have
* the Valkyrie chip -- at least, that we know of -- is
* the Performa/LC 57x series. This system has a version
* of the DAFB controller, instead.
*
* If this assumption proves false, we'll have to be more
* intelligent here.
*/
/*FALLTHROUGH*/
case MACH_CLASSQ:
/*
* Assume DAFB for all of these, unless we can't
* access the memory.
*/
base = DAFB_CONTROL_BASE;
if (bus_space_map(oa->oa_tag, base, 0x20, 0, &bsh))
return 0;
if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x1c, 4) == 0) {
bus_space_unmap(oa->oa_tag, bsh, 0x20);
return 0;
}
bus_space_unmap(oa->oa_tag, bsh, 0x20);
if (bus_space_map(oa->oa_tag, base + 0x100, 0x20, 0, &bsh))
return 0;
if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0x04, 4) == 0) {
bus_space_unmap(oa->oa_tag, bsh, 0x20);
return 0;
}
/* Disable interrupts */
bus_space_write_4(oa->oa_tag, bsh, 0x04, 0);
/* Clear any interrupts */
bus_space_write_4(oa->oa_tag, bsh, 0x0C, 0);
bus_space_write_4(oa->oa_tag, bsh, 0x10, 0);
bus_space_write_4(oa->oa_tag, bsh, 0x14, 0);
bus_space_unmap(oa->oa_tag, bsh, 0x20);
break;
case MACH_CLASSAV:
base = CIVIC_CONTROL_BASE;
if (bus_space_map(oa->oa_tag, base, 0x1000, 0, &bsh))
return 0;
/* Disable interrupts */
bus_space_write_1(oa->oa_tag, bsh, 0x120, 0);
bus_space_unmap(oa->oa_tag, bsh, 0x1000);
break;
case MACH_CLASSIIci:
case MACH_CLASSIIsi:
if (mac68k_video.mv_len == 0 ||
(via2_reg(rMonitor) & RBVMonitorMask) == RBVMonIDNone)
found = 0;
break;
default:
if (mac68k_video.mv_len == 0)
found = 0;
break;
}
return found;
}
static void
grfiv_attach(struct device *parent, struct device *self, void *aux)
{
struct obio_attach_args *oa = (struct obio_attach_args *)aux;
struct grfbus_softc *sc;
struct grfmode *gm;
u_long base, length;
u_int32_t vbase1, vbase2;
sc = (struct grfbus_softc *)self;
sc->card_id = 0;
switch (current_mac_model->class) {
case MACH_CLASSQ2:
if (current_mac_model->machineid != MACH_MACLC575) {
sc->sc_basepa = VALKYRIE_BASE;
length = 0x00100000; /* 1MB */
if (sc->sc_basepa <= mac68k_video.mv_phys &&
mac68k_video.mv_phys < (sc->sc_basepa + length)) {
sc->sc_fbofs =
mac68k_video.mv_phys - sc->sc_basepa;
} else {
sc->sc_basepa =
m68k_trunc_page(mac68k_video.mv_phys);
sc->sc_fbofs =
m68k_page_offset(mac68k_video.mv_phys);
length = mac68k_video.mv_len + sc->sc_fbofs;
}
printf(" @ %lx: Valkyrie video subsystem\n",
sc->sc_basepa + sc->sc_fbofs);
break;
}
/* See note in grfiv_match() */
/*FALLTHROUGH*/
case MACH_CLASSQ:
base = DAFB_CONTROL_BASE;
sc->sc_tag = oa->oa_tag;
if (bus_space_map(sc->sc_tag, base, 0x20, 0, &sc->sc_regh)) {
printf(": failed to map DAFB register space\n");
return;
}
sc->sc_basepa = DAFB_BASE;
length = 0x00100000; /* 1MB */
/* Compute the current frame buffer offset */
vbase1 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x0) & 0xfff;
#if 1
/*
* XXX The following exists because the DAFB v7 in these
* systems doesn't return reasonable values to use for fbofs.
* Ken'ichi Ishizaka gets credit for this hack. (sar 19990426)
* (Does this get us the correct result for _all_ DAFB-
* equipped systems and monitor combinations? It seems
* possible, if not likely...)
*/
switch (current_mac_model->machineid) {
case MACH_MACLC475:
case MACH_MACLC475_33:
case MACH_MACLC575:
case MACH_MACQ605:
case MACH_MACQ605_33:
vbase1 &= 0x3f;
break;
}
#endif
vbase2 = bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x4) & 0xf;
sc->sc_fbofs = (vbase1 << 9) | (vbase2 << 5);
printf(" @ %lx: DAFB video subsystem, monitor sense %x\n",
sc->sc_basepa + sc->sc_fbofs,
(bus_space_read_4(sc->sc_tag, sc->sc_regh, 0x1c) & 0x7));
bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x20);
break;
case MACH_CLASSAV:
sc->sc_basepa = CIVIC_BASE;
length = 0x00200000; /* 2MB */
if (mac68k_video.mv_phys >= sc->sc_basepa &&
mac68k_video.mv_phys < (sc->sc_basepa + length)) {
sc->sc_fbofs = mac68k_video.mv_phys - sc->sc_basepa;
} else {
sc->sc_basepa = m68k_trunc_page(mac68k_video.mv_phys);
sc->sc_fbofs = m68k_page_offset(mac68k_video.mv_phys);
length = mac68k_video.mv_len + sc->sc_fbofs;
}
printf(" @ %lx: CIVIC video subsystem\n",
sc->sc_basepa + sc->sc_fbofs);
break;
case MACH_CLASSIIci:
case MACH_CLASSIIsi:
sc->sc_basepa = m68k_trunc_page(mac68k_video.mv_phys);
sc->sc_fbofs = m68k_page_offset(mac68k_video.mv_phys);
length = mac68k_video.mv_len + sc->sc_fbofs;
printf(" @ %lx: RBV video subsystem, ",
sc->sc_basepa + sc->sc_fbofs);
switch (via2_reg(rMonitor) & RBVMonitorMask) {
case RBVMonIDBWP:
printf("15\" monochrome portrait");
break;
case RBVMonIDRGB12:
printf("12\" color");
break;
case RBVMonIDRGB15:
printf("15\" color");
break;
case RBVMonIDStd:
printf("Macintosh II");
break;
default:
printf("unrecognized");
break;
}
printf(" display\n");
break;
default:
sc->sc_basepa = m68k_trunc_page(mac68k_video.mv_phys);
sc->sc_fbofs = m68k_page_offset(mac68k_video.mv_phys);
length = mac68k_video.mv_len + sc->sc_fbofs;
printf(" @ %lx: On-board video\n",
sc->sc_basepa + sc->sc_fbofs);
break;
}
if (bus_space_map(sc->sc_tag, sc->sc_basepa, length, 0,
&sc->sc_handle)) {
printf("%s: failed to map video RAM\n", sc->sc_dev.dv_xname);
return;
}
if (sc->sc_basepa <= mac68k_video.mv_phys &&
mac68k_video.mv_phys < (sc->sc_basepa + length)) {
/* XXX Hack */
mac68k_video.mv_kvaddr = sc->sc_handle.base + sc->sc_fbofs;
}
gm = &(sc->curr_mode);
gm->mode_id = 0;
gm->psize = mac68k_video.mv_depth;
gm->ptype = 0;
gm->width = mac68k_video.mv_width;
gm->height = mac68k_video.mv_height;
gm->rowbytes = mac68k_video.mv_stride;
gm->hres = 80; /* XXX hack */
gm->vres = 80; /* XXX hack */
gm->fbsize = gm->height * gm->rowbytes;
gm->fbbase = (void *)sc->sc_handle.base; /* XXX yet another hack */
gm->fboff = sc->sc_fbofs;
/* Perform common video attachment. */
grf_establish(sc, NULL, grfiv_mode);
}
static int
grfiv_mode(struct grf_softc *sc, int cmd, void *arg)
{
switch (cmd) {
case GM_GRFON:
case GM_GRFOFF:
return 0;
case GM_CURRMODE:
break;
case GM_NEWMODE:
break;
case GM_LISTMODES:
break;
}
return EINVAL;
}