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/* $OpenBSD: grf_iv.c,v 1.4 1996/08/10 21:37:43 briggs Exp $ */
/* $NetBSD: grf_iv.c,v 1.13 1996/08/04 06:03:52 scottr 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/grfioctl.h>
#include <machine/cpu.h>
#include "nubus.h"
#include "grfvar.h"
extern u_int32_t mac68k_vidlog;
extern u_int32_t mac68k_vidphys;
extern long videorowbytes;
extern long videobitdepth;
extern unsigned 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, vm_offset_t addr));
static int grfiv_match __P((struct device *, void *, 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
};
static int
grfiv_match(pdp, match, auxp)
struct device *pdp;
void *match, *auxp;
{
static int internal_video_found = 0;
if (internal_video_found || (mac68k_vidlog == 0)) {
return 0;
}
return 1;
}
static void
grfiv_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct grfbus_softc *sc;
struct grfmode *gm;
sc = (struct grfbus_softc *) self;
sc->card_id = 0;
printf(": Internal Video\n");
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) mac68k_vidlog;
gm->fboff = 0;
/* 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, addr)
struct grf_softc *gp;
vm_offset_t addr;
{
/*
* 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;
}
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