NetBSD/sys/arch/mac68k/dev/grf_mv.c

369 lines
10 KiB
C

/* $NetBSD: grf_mv.c,v 1.21 1997/04/14 16:28:35 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.
*/
/*
* 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 <sys/systm.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <machine/grfioctl.h>
#include <machine/viareg.h>
#include "nubus.h"
#include "grfvar.h"
static void load_image_data __P((caddr_t data, struct image_data *image));
static void grfmv_intr_generic __P((void *vsc, int slot));
static void grfmv_intr_cti __P((void *vsc, int slot));
static void grfmv_intr_cb264 __P((void *vsc, int slot));
static int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg));
static caddr_t grfmv_phys __P((struct grf_softc *gp, vm_offset_t addr));
static int grfmv_match __P((struct device *, struct cfdata *, void *));
static void grfmv_attach __P((struct device *, struct device *, void *));
struct cfdriver macvid_cd = {
NULL, "macvid", DV_DULL
};
struct cfattach macvid_ca = {
sizeof(struct grfbus_softc), grfmv_match, grfmv_attach
};
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 int
grfmv_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
if (na->category != NUBUS_CATEGORY_DISPLAY)
return 0;
if (na->type != NUBUS_TYPE_VIDEO)
return 0;
if (na->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.
*/
return 1;
}
static void
grfmv_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct grfbus_softc *sc = (struct grfbus_softc *)self;
struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
struct image_data image_store, image;
struct grfmode *gm;
char cardname[CARD_NAME_LEN];
nubus_dirent dirent;
nubus_dir dir, mode_dir;
int mode;
sc->card_id = na->drhw;
bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot));
nubus_get_main_dir(&sc->sc_slot, &dir);
if (nubus_find_rsrc(&sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0)
return;
nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir);
if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir,
NUBUS_RSRC_TYPE, &dirent) <= 0)
if ((na->rsrcid != 128) ||
(nubus_find_rsrc(&sc->sc_slot, &dir, 129, &dirent) <= 0))
return;
mode = NUBUS_RSRC_FIRSTMODE;
if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) {
printf("\n%s: probe failed to get board rsrc.\n",
sc->sc_dev.dv_xname);
return;
}
nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir);
if (nubus_find_rsrc(&sc->sc_slot, &mode_dir, VID_PARAMS, &dirent)
<= 0) {
printf("\n%s: probe failed to get mode dir.\n",
sc->sc_dev.dv_xname);
return;
}
if (nubus_get_ind_data(&sc->sc_slot, &dirent, (caddr_t)&image_store,
sizeof(struct image_data)) <= 0) {
printf("\n%s: probe failed to get indirect mode data.\n",
sc->sc_dev.dv_xname);
return;
}
/* Need to load display info (and driver?), etc... (?) */
load_image_data((caddr_t)&image_store, &image);
gm = &sc->curr_mode;
gm->mode_id = mode;
gm->fbbase = (caddr_t)(sc->sc_slot.virtual_base + image.offset);
gm->fboff = image.offset;
gm->rowbytes = image.rowbytes;
gm->width = image.right - image.left;
gm->height = image.bottom - image.top;
gm->fbsize = sc->curr_mode.height * sc->curr_mode.rowbytes;
gm->hres = image.hRes;
gm->vres = image.vRes;
gm->ptype = image.pixelType;
gm->psize = image.pixelSize;
strncpy(cardname, nubus_get_card_name(&sc->sc_slot),
CARD_NAME_LEN);
cardname[CARD_NAME_LEN-1] = '\0';
printf(": %s\n", cardname);
if (sc->card_id == NUBUS_DRHW_TFB) {
/*
* This is the Toby card, but apparently some manufacturers
* (like Cornerstone) didn't bother to get/use their own
* value here, even though the cards are different, so we
* so we try to differentiate here.
*/
if (strncmp(cardname, "Samsung 768", 11) == 0)
sc->card_id = NUBUS_DRHW_SAM768;
else if (strncmp(cardname, "Toby frame", 10) != 0)
printf("%s: This display card pretends to be a TFB!",
sc->sc_dev.dv_xname);
}
switch (sc->card_id) {
case NUBUS_DRHW_M2HRVC:
case NUBUS_DRHW_TFB:
sc->cli_offset = 0xa0000;
add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc);
break;
case NUBUS_DRHW_WVC:
sc->cli_offset = 0xa00000;
add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc);
break;
case NUBUS_DRHW_SAM768:
add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cti, sc);
break;
case NUBUS_DRHW_CB264:
add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cb264, sc);
break;
case NUBUS_DRHW_SE30:
/* Do nothing--SE/30 interrupts are disabled */
break;
case NUBUS_DRHW_MICRON:
/* What do we know about this one? */
default:
printf("%s: Unknown video card ID 0x%x --",
sc->sc_dev.dv_xname, sc->card_id);
printf(" Not installing interrupt routine.\n");
break;
}
/* Perform common video attachment. */
grf_establish(sc, &sc->sc_slot, grfmv_mode, grfmv_phys);
}
static 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;
}
static caddr_t
grfmv_phys(gp, addr)
struct grf_softc *gp;
vm_offset_t addr;
{
return (caddr_t)(NUBUS_SLOT2PA(gp->sc_slot->slot) +
(addr - gp->sc_slot->virtual_base));
}
/* Interrupt handlers... */
/*
* Generic routine to clear interrupts for cards where it simply takes
* a CLR.B to clear the interrupt. The offset of this byte varies between
* cards.
*/
/*ARGSUSED*/
static void
grfmv_intr_generic(vsc, slot)
void *vsc;
int slot;
{
static char zero = 0;
struct grfbus_softc *sc;
volatile char *slotbase;
sc = (struct grfbus_softc *)vsc;
slotbase = (volatile char *)sc->sc_slot.virtual_base;
slotbase[sc->cli_offset] = zero;
}
/*
* Routine to clear interrupts on Samsung 768x1006 video controller.
* This controller was manufactured by Cornerstone Technology, Inc.,
* now known as Cornerstone Imaging.
*
* To clear this interrupt, we apparently have to set, then clear,
* bit 2 at byte offset 0x80000 from the card's base.
* Information for this provided by Brad Salai <bsalai@servtech.com>
*/
/*ARGSUSED*/
static void
grfmv_intr_cti(vsc, slot)
void *vsc;
int slot;
{
struct grfbus_softc *sc;
volatile char *slotbase;
sc = (struct grfbus_softc *)vsc;
slotbase = ((volatile char *)sc->sc_slot.virtual_base) + 0x00080000;
*slotbase = (*slotbase | 0x02);
*slotbase = (*slotbase & 0xFD);
}
/*ARGSUSED*/
static void
grfmv_intr_cb264(vsc, slot)
void *vsc;
int slot;
{
struct grfbus_softc *sc;
volatile char *slotbase;
sc = (struct grfbus_softc *)vsc;
slotbase = (volatile char *)sc->sc_slot.virtual_base;
asm volatile(" movl %0,a0
movl a0@(0xff6028),d0
andl #0x2,d0
beq _mv_intr0
movql #0x3,d0
_mv_intr0:
movl a0@(0xff600c),d1
andl #0x3,d1
cmpl d1,d0
beq _mv_intr_fin
movl d0,a0@(0xff600c)
nop
tstb d0
beq _mv_intr1
movl #0x0002,a0@(0xff6040)
movl #0x0102,a0@(0xff6044)
movl #0x0105,a0@(0xff6048)
movl #0x000e,a0@(0xff604c)
movl #0x001c,a0@(0xff6050)
movl #0x00bc,a0@(0xff6054)
movl #0x00c3,a0@(0xff6058)
movl #0x0061,a0@(0xff605c)
movl #0x0012,a0@(0xff6060)
bra _mv_intr_fin
_mv_intr1:
movl #0x0002,a0@(0xff6040)
movl #0x0209,a0@(0xff6044)
movl #0x020c,a0@(0xff6048)
movl #0x000f,a0@(0xff604c)
movl #0x0027,a0@(0xff6050)
movl #0x00c7,a0@(0xff6054)
movl #0x00d7,a0@(0xff6058)
movl #0x006b,a0@(0xff605c)
movl #0x0029,a0@(0xff6060)
_mv_intr_fin:
movl #0x1,a0@(0xff6014)"
: : "g" (slotbase) : "a0","d0","d1");
}