9c8e4f24b0
(mrz5149@cs.rit.edu) for the addresses and hints as to how the interrupts might be disabled, and thanks to Henry Hotz (h.b.hotz@jpl.nasa.gov) for testing on the 840AV. Unmap the DAFB regs on the other Quadras after attachment. They're not used.
228 lines
6.1 KiB
C
228 lines
6.1 KiB
C
/* $NetBSD: grf_iv.c,v 1.25 1997/10/08 19:54:04 briggs Exp $ */
|
|
|
|
/*
|
|
* 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/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 <mac68k/dev/nubus.h>
|
|
#include <mac68k/dev/obiovar.h>
|
|
#include <mac68k/dev/grfvar.h>
|
|
|
|
extern u_int32_t mac68k_vidlog;
|
|
extern u_int32_t mac68k_vidphys;
|
|
extern long videorowbytes;
|
|
extern long videobitdepth;
|
|
extern u_long videosize;
|
|
|
|
static int grfiv_mode __P((struct grf_softc *gp, int cmd, void *arg));
|
|
static caddr_t grfiv_phys __P((struct grf_softc *gp));
|
|
static int grfiv_match __P((struct device *, struct cfdata *, void *));
|
|
static void grfiv_attach __P((struct device *, struct device *, void *));
|
|
|
|
struct cfdriver intvid_cd = {
|
|
NULL, "intvid", DV_DULL
|
|
};
|
|
|
|
struct cfattach intvid_ca = {
|
|
sizeof(struct grfbus_softc), grfiv_match, grfiv_attach
|
|
};
|
|
|
|
#define QUADRA_DAFB_BASE 0xF9800000
|
|
#define CIVIC_CONTROL_BASE 0x50036000
|
|
|
|
static int
|
|
grfiv_match(parent, cf, aux)
|
|
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, sense;
|
|
|
|
found = 1;
|
|
|
|
switch (current_mac_model->class) {
|
|
case MACH_CLASSQ:
|
|
case MACH_CLASSQ2:
|
|
/*
|
|
* Assume DAFB for all of these, unless we can't
|
|
* access the memory.
|
|
*/
|
|
|
|
if (bus_space_map(oa->oa_tag, QUADRA_DAFB_BASE, 0x1000,
|
|
0, &bsh)) {
|
|
panic("failed to map space for DAFB regs.\n");
|
|
}
|
|
|
|
if (bus_probe(oa->oa_tag, bsh, 0x1C, 4) == 0) {
|
|
bus_space_unmap(oa->oa_tag, bsh, 0x1000);
|
|
found = 0;
|
|
goto nodafb;
|
|
}
|
|
|
|
sense = (bus_space_read_4(oa->oa_tag, bsh, 0x1C) & 7);
|
|
|
|
if (sense == 0)
|
|
found = 0;
|
|
|
|
/* Set "Turbo SCSI" configuration to default */
|
|
bus_space_write_4(oa->oa_tag, bsh, 0x24, 0x1d1); /* ch0 */
|
|
bus_space_write_4(oa->oa_tag, bsh, 0x28, 0x1d1); /* ch1 */
|
|
|
|
/* Disable interrupts */
|
|
bus_space_write_4(oa->oa_tag, bsh, 0x104, 0);
|
|
|
|
/* Clear any interrupts */
|
|
bus_space_write_4(oa->oa_tag, bsh, 0x10C, 0);
|
|
bus_space_write_4(oa->oa_tag, bsh, 0x110, 0);
|
|
bus_space_write_4(oa->oa_tag, bsh, 0x114, 0);
|
|
|
|
bus_space_unmap(oa->oa_tag, bsh, 0x1000);
|
|
break;
|
|
|
|
case MACH_CLASSAV:
|
|
if (bus_space_map(oa->oa_tag, CIVIC_CONTROL_BASE, 0x1000,
|
|
0, &bsh)) {
|
|
panic("failed to map space for CIVIC control regs.\n");
|
|
}
|
|
/* Disable interrupts */
|
|
bus_space_write_1(oa->oa_tag, bsh, 0x120, 0);
|
|
bus_space_unmap(oa->oa_tag, bsh, 0x1000);
|
|
break;
|
|
|
|
default:
|
|
nodafb:
|
|
if (mac68k_vidlog == 0) {
|
|
found = 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return found;
|
|
}
|
|
|
|
#define R4(sc, o) (bus_space_read_4((sc)->sc_tag, (sc)->sc_regh, o) & 0xfff)
|
|
|
|
static void
|
|
grfiv_attach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct obio_attach_args *oa = (struct obio_attach_args *)aux;
|
|
struct grfbus_softc *sc;
|
|
struct grfmode *gm;
|
|
|
|
sc = (struct grfbus_softc *)self;
|
|
|
|
sc->card_id = 0;
|
|
|
|
switch (current_mac_model->class) {
|
|
case MACH_CLASSQ:
|
|
case MACH_CLASSQ2:
|
|
sc->sc_tag = oa->oa_tag;
|
|
if (bus_space_map(sc->sc_tag, QUADRA_DAFB_BASE, 0x1000,
|
|
0, &sc->sc_regh)) {
|
|
panic("failed to map space for DAFB regs.\n");
|
|
}
|
|
printf(": DAFB: Monitor sense %x.\n", R4(sc,0x1C)&7);
|
|
bus_space_unmap(sc->sc_tag, sc->sc_regh, 0x1000);
|
|
break;
|
|
default:
|
|
printf(": Internal Video\n");
|
|
break;
|
|
}
|
|
|
|
gm = &(sc->curr_mode);
|
|
gm->mode_id = 0;
|
|
gm->psize = videobitdepth;
|
|
gm->ptype = 0;
|
|
gm->width = videosize & 0xffff;
|
|
gm->height = (videosize >> 16) & 0xffff;
|
|
gm->rowbytes = videorowbytes;
|
|
gm->hres = 80; /* XXX Hack */
|
|
gm->vres = 80; /* XXX Hack */
|
|
gm->fbsize = gm->rowbytes * gm->height;
|
|
gm->fbbase = (caddr_t)m68k_trunc_page(mac68k_vidlog);
|
|
gm->fboff = mac68k_vidlog & PGOFSET;
|
|
|
|
/* Perform common video attachment. */
|
|
grf_establish(sc, NULL, grfiv_mode, grfiv_phys);
|
|
}
|
|
|
|
static int
|
|
grfiv_mode(sc, cmd, arg)
|
|
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;
|
|
}
|
|
|
|
static caddr_t
|
|
grfiv_phys(gp)
|
|
struct grf_softc *gp;
|
|
{
|
|
/*
|
|
* If we're using IIsi or similar, this will be 0.
|
|
* If we're using IIvx or similar, this will be correct.
|
|
*/
|
|
return (caddr_t)mac68k_vidphys;
|
|
}
|