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/* $NetBSD: grf_mv.c,v 1.7 1995/08/24 04:27:16 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.
*/
/*
* Device-specific routines for handling Nubus-based video cards.
*/
#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 <machine/grfioctl.h>
#include <machine/cpu.h>
#include "nubus.h"
#include "grfvar.h"
extern int grfmv_probe __P((struct grf_softc *gp, nubus_slot *slot));
extern int grfmv_init __P((struct grf_softc *gp));
extern int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg));
static char zero = 0;
static void
load_image_data(data, image)
caddr_t data;
struct image_data *image;
{
bcopy(data , &image->size, 4);
bcopy(data + 4, &image->offset, 4);
bcopy(data + 8, &image->rowbytes, 2);
bcopy(data + 10, &image->top, 2);
bcopy(data + 12, &image->left, 2);
bcopy(data + 14, &image->bottom, 2);
bcopy(data + 16, &image->right, 2);
bcopy(data + 18, &image->version, 2);
bcopy(data + 20, &image->packType, 2);
bcopy(data + 22, &image->packSize, 4);
bcopy(data + 26, &image->hRes, 4);
bcopy(data + 30, &image->vRes, 4);
bcopy(data + 34, &image->pixelType, 2);
bcopy(data + 36, &image->pixelSize, 2);
bcopy(data + 38, &image->cmpCount, 2);
bcopy(data + 40, &image->cmpSize, 2);
bcopy(data + 42, &image->planeBytes, 4);
}
static void
grfmv_intr(sc, slot)
struct grf_softc *sc;
int slot;
{
struct grf_softc *gp;
caddr_t slotbase;
slotbase = (caddr_t) NUBUS_SLOT_TO_BASE(slot);
slotbase[0xa0000] = zero;
}
static int
get_vrsrcid(slot)
nubus_slot *slot;
{
extern u_short mac68k_vrsrc_vec[];
extern int mac68k_vrsrc_cnt;
int i;
for (i = 0 ; i < 6 ; i++)
if ((mac68k_vrsrc_vec[i] & 0xff) == slot->slot)
return ((mac68k_vrsrc_vec[i] >> 8) & 0xff);
return 0x80;
}
extern int
grfmv_probe(sc, slot)
struct grf_softc *sc;
nubus_slot *slot;
{
nubus_dir dir, *dirp, dir2, *dirp2;
nubus_dirent dirent, *direntp;
nubus_type slottype;
int vrsrc;
dirp = &dir;
direntp = &dirent;
nubus_get_main_dir(slot, dirp);
vrsrc = get_vrsrcid(slot);
if (nubus_find_rsrc(slot, dirp, vrsrc, direntp) <= 0) {
if ( (vrsrc != 128)
|| (nubus_find_rsrc(slot, dirp, 129, direntp) <= 0)) {
return 0;
}
}
dirp2 = (nubus_dir *) &sc->board_dir;
nubus_get_dir_from_rsrc(slot, direntp, dirp2);
if (nubus_find_rsrc(slot, dirp2, NUBUS_RSRC_TYPE, direntp) <= 0)
/* Type is a required entry... This should never happen. */
return 0;
if (nubus_get_ind_data(slot, direntp,
(caddr_t) &slottype, sizeof(nubus_type)) <= 0)
return 0;
if (slottype.category != NUBUS_CATEGORY_DISPLAY)
return 0;
if (slottype.type != NUBUS_TYPE_VIDEO)
return 0;
if (slottype.drsw != NUBUS_DRSW_APPLE)
return 0;
/*
* If we've gotten this far, then we're dealing with a real-live
* Apple QuickDraw-compatible display card resource. Now, how to
* determine that this is an active resource??? Dunno. But we'll
* proceed like it is.
*/
sc->card_id = slottype.drhw;
/* Need to load display info (and driver?), etc... */
return 1;
}
extern int
grfmv_init(sc)
struct grf_softc *sc;
{
struct image_data image_store, image;
nubus_dirent dirent;
nubus_dir mode_dir;
int mode;
u_long base;
mode = NUBUS_RSRC_FIRSTMODE;
if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0)
return 0;
nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir);
if (nubus_find_rsrc(&sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) <= 0)
return 0;
if (nubus_get_ind_data(&sc->sc_slot, &dirent, (caddr_t) &image_store,
sizeof(struct image_data)) <= 0)
return 0;
load_image_data((caddr_t) &image_store, &image);
base = NUBUS_SLOT_TO_BASE(sc->sc_slot.slot);
sc->curr_mode.mode_id = mode;
sc->curr_mode.fbbase = (caddr_t) (base + image.offset);
sc->curr_mode.fboff = image.offset;
sc->curr_mode.rowbytes = image.rowbytes;
sc->curr_mode.width = image.right - image.left;
sc->curr_mode.height = image.bottom - image.top;
sc->curr_mode.fbsize = sc->curr_mode.height * sc->curr_mode.rowbytes;
sc->curr_mode.hres = image.hRes;
sc->curr_mode.vres = image.vRes;
sc->curr_mode.ptype = image.pixelType;
sc->curr_mode.psize = image.pixelSize;
strncpy(sc->card_name, nubus_get_card_name(&sc->sc_slot),
CARD_NAME_LEN);
sc->card_name[CARD_NAME_LEN-1] = '\0';
add_nubus_intr(sc->sc_slot.slot, grfmv_intr, sc);
return 1;
}
extern int
grfmv_mode(gp, cmd, arg)
struct grf_softc *gp;
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;
}
extern caddr_t
grfmv_phys(gp, addr)
struct grf_softc *gp;
vm_offset_t addr;
{
return (caddr_t) NUBUS_VIRT_TO_PHYS(addr);
}
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