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grf_nubus.c revision 1.60
      1 /*	$NetBSD: grf_nubus.c,v 1.60 2000/12/09 05:14:31 briggs Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Allen Briggs.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 /*
     29  * Device-specific routines for handling Nubus-based video cards.
     30  */
     31 
     32 #include <sys/param.h>
     33 
     34 #include <sys/device.h>
     35 #include <sys/ioctl.h>
     36 #include <sys/file.h>
     37 #include <sys/malloc.h>
     38 #include <sys/mman.h>
     39 #include <sys/proc.h>
     40 #include <sys/systm.h>
     41 
     42 #include <machine/bus.h>
     43 #include <machine/cpu.h>
     44 #include <machine/grfioctl.h>
     45 #include <machine/viareg.h>
     46 
     47 #include <mac68k/nubus/nubus.h>
     48 #include <mac68k/dev/grfvar.h>
     49 
     50 static void	load_image_data __P((caddr_t data, struct image_data *image));
     51 
     52 static void	grfmv_intr_generic_write1 __P((void *vsc));
     53 static void	grfmv_intr_generic_write4 __P((void *vsc));
     54 static void	grfmv_intr_generic_or4 __P((void *vsc));
     55 
     56 static void	grfmv_intr_cb264 __P((void *vsc));
     57 static void	grfmv_intr_cb364 __P((void *vsc));
     58 static void	grfmv_intr_cmax __P((void *vsc));
     59 static void	grfmv_intr_cti __P((void *vsc));
     60 static void	grfmv_intr_radius __P((void *vsc));
     61 static void	grfmv_intr_radius24 __P((void *vsc));
     62 static void	grfmv_intr_supermacgfx __P((void *vsc));
     63 static void	grfmv_intr_lapis __P((void *vsc));
     64 static void	grfmv_intr_formac __P((void *vsc));
     65 static void	grfmv_intr_vimage __P((void *vsc));
     66 static void	grfmv_intr_gvimage __P((void *vsc));
     67 static void	grfmv_intr_radius_gsc __P((void *vsc));
     68 
     69 static int	grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg));
     70 static int	grfmv_match __P((struct device *, struct cfdata *, void *));
     71 static void	grfmv_attach __P((struct device *, struct device *, void *));
     72 
     73 struct cfattach macvid_ca = {
     74 	sizeof(struct grfbus_softc), grfmv_match, grfmv_attach
     75 };
     76 
     77 static void
     78 load_image_data(data, image)
     79 	caddr_t	data;
     80 	struct	image_data *image;
     81 {
     82 	bcopy(data     , &image->size,       4);
     83 	bcopy(data +  4, &image->offset,     4);
     84 	bcopy(data +  8, &image->rowbytes,   2);
     85 	bcopy(data + 10, &image->top,        2);
     86 	bcopy(data + 12, &image->left,       2);
     87 	bcopy(data + 14, &image->bottom,     2);
     88 	bcopy(data + 16, &image->right,      2);
     89 	bcopy(data + 18, &image->version,    2);
     90 	bcopy(data + 20, &image->packType,   2);
     91 	bcopy(data + 22, &image->packSize,   4);
     92 	bcopy(data + 26, &image->hRes,       4);
     93 	bcopy(data + 30, &image->vRes,       4);
     94 	bcopy(data + 34, &image->pixelType,  2);
     95 	bcopy(data + 36, &image->pixelSize,  2);
     96 	bcopy(data + 38, &image->cmpCount,   2);
     97 	bcopy(data + 40, &image->cmpSize,    2);
     98 	bcopy(data + 42, &image->planeBytes, 4);
     99 }
    100 
    101 
    102 static int
    103 grfmv_match(parent, cf, aux)
    104 	struct device *parent;
    105 	struct cfdata *cf;
    106 	void *aux;
    107 {
    108 	struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
    109 
    110 	if (na->category != NUBUS_CATEGORY_DISPLAY)
    111 		return 0;
    112 
    113 	if (na->type != NUBUS_TYPE_VIDEO)
    114 		return 0;
    115 
    116 	if (na->drsw != NUBUS_DRSW_APPLE)
    117 		return 0;
    118 
    119 	/*
    120 	 * If we've gotten this far, then we're dealing with a real-live
    121 	 * Apple QuickDraw-compatible display card resource.  Now, how to
    122 	 * determine that this is an active resource???  Dunno.  But we'll
    123 	 * proceed like it is.
    124 	 */
    125 
    126 	return 1;
    127 }
    128 
    129 static void
    130 grfmv_attach(parent, self, aux)
    131 	struct device *parent, *self;
    132 	void *aux;
    133 {
    134 	struct grfbus_softc *sc = (struct grfbus_softc *)self;
    135 	struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
    136 	struct image_data image_store, image;
    137 	struct grfmode *gm;
    138 	char cardname[CARD_NAME_LEN];
    139 	nubus_dirent dirent;
    140 	nubus_dir dir, mode_dir;
    141 	int mode;
    142 
    143 	bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot));
    144 
    145 	sc->sc_tag = na->na_tag;
    146 	sc->card_id = na->drhw;
    147 	sc->sc_basepa = (bus_addr_t)NUBUS_SLOT2PA(na->slot);
    148 	sc->sc_fbofs = 0;
    149 
    150 	if (bus_space_map(sc->sc_tag, sc->sc_basepa, NBMEMSIZE,
    151 	    0, &sc->sc_handle)) {
    152 		printf(": grfmv_attach: failed to map slot %d\n", na->slot);
    153 		return;
    154 	}
    155 
    156 	nubus_get_main_dir(&sc->sc_slot, &dir);
    157 
    158 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    159 	    &sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) {
    160 bad:
    161 		bus_space_unmap(sc->sc_tag, sc->sc_handle, NBMEMSIZE);
    162 		return;
    163 	}
    164 
    165 	nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir);
    166 
    167 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    168 	    &sc->sc_slot, &sc->board_dir, NUBUS_RSRC_TYPE, &dirent) <= 0)
    169 		if ((na->rsrcid != 128) ||
    170 		    (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    171 		    &sc->sc_slot, &dir, 129, &dirent) <= 0))
    172 			goto bad;
    173 
    174 	mode = NUBUS_RSRC_FIRSTMODE;
    175 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    176 	    &sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) {
    177 		printf(": probe failed to get board rsrc.\n");
    178 		goto bad;
    179 	}
    180 
    181 	nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir);
    182 
    183 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    184 	    &sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) <= 0) {
    185 		printf(": probe failed to get mode dir.\n");
    186 		goto bad;
    187 	}
    188 
    189 	if (nubus_get_ind_data(sc->sc_tag, sc->sc_handle, &sc->sc_slot,
    190 	    &dirent, (caddr_t)&image_store, sizeof(struct image_data)) <= 0) {
    191 		printf(": probe failed to get indirect mode data.\n");
    192 		goto bad;
    193 	}
    194 
    195 	/* Need to load display info (and driver?), etc... (?) */
    196 
    197 	load_image_data((caddr_t)&image_store, &image);
    198 
    199 	gm = &sc->curr_mode;
    200 	gm->mode_id = mode;
    201 	gm->ptype = image.pixelType;
    202 	gm->psize = image.pixelSize;
    203 	gm->width = image.right - image.left;
    204 	gm->height = image.bottom - image.top;
    205 	gm->rowbytes = image.rowbytes;
    206 	gm->hres = image.hRes;
    207 	gm->vres = image.vRes;
    208 	gm->fbsize = gm->height * gm->rowbytes;
    209 	gm->fbbase = (caddr_t)(sc->sc_handle.base);	/* XXX evil hack */
    210 	gm->fboff = image.offset;
    211 
    212 	strncpy(cardname, nubus_get_card_name(sc->sc_tag, sc->sc_handle,
    213 	    &sc->sc_slot), CARD_NAME_LEN);
    214 	cardname[CARD_NAME_LEN-1] = '\0';
    215 	printf(": %s\n", cardname);
    216 
    217 	if (sc->card_id == NUBUS_DRHW_TFB) {
    218 		/*
    219 		 * This is the Toby card, but apparently some manufacturers
    220 		 * (like Cornerstone) didn't bother to get/use their own
    221 		 * value here, even though the cards are different, so we
    222 		 * so we try to differentiate here.
    223 		 */
    224 		if (strncmp(cardname, "Samsung 768", 11) == 0)
    225 			sc->card_id = NUBUS_DRHW_SAM768;
    226 		else if (strncmp(cardname, "Toby frame", 10) != 0)
    227 			printf("%s: This display card pretends to be a TFB!\n",
    228 			    sc->sc_dev.dv_xname);
    229 	}
    230 
    231 	switch (sc->card_id) {
    232 	case NUBUS_DRHW_TFB:
    233 	case NUBUS_DRHW_M2HRVC:
    234 	case NUBUS_DRHW_PVC:
    235 		sc->cli_offset = 0xa0000;
    236 		sc->cli_value = 0;
    237 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    238 		break;
    239 	case NUBUS_DRHW_WVC:
    240 		sc->cli_offset = 0xa00000;
    241 		sc->cli_value = 0;
    242 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    243 		break;
    244 	case NUBUS_DRHW_COLORMAX:
    245 		add_nubus_intr(na->slot, grfmv_intr_cmax, sc);
    246 		break;
    247 	case NUBUS_DRHW_SE30:
    248 		/* Do nothing--SE/30 interrupts are disabled */
    249 		break;
    250 	case NUBUS_DRHW_MDC:
    251 		sc->cli_offset = 0x200148;
    252 		sc->cli_value = 1;
    253 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    254 
    255 		/* Enable interrupts; to disable, write 0x7 to this location */
    256 		bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x20013C, 5);
    257 		break;
    258 	case NUBUS_DRHW_CB264:
    259 		add_nubus_intr(na->slot, grfmv_intr_cb264, sc);
    260 		break;
    261 	case NUBUS_DRHW_CB364:
    262 		add_nubus_intr(na->slot, grfmv_intr_cb364, sc);
    263 		break;
    264 	case NUBUS_DRHW_RPC8:
    265 		sc->cli_offset = 0xfdff8f;
    266 		sc->cli_value = 0xff;
    267 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    268 		break;
    269 	case NUBUS_DRHW_RPC8XJ:
    270 		sc->cli_value = 0x66;
    271 		add_nubus_intr(na->slot, grfmv_intr_radius, sc);
    272 		break;
    273 	case NUBUS_DRHW_RPC24X:
    274 	case NUBUS_DRHW_BOOGIE:
    275 		sc->cli_value = 0x64;
    276 		add_nubus_intr(na->slot, grfmv_intr_radius, sc);
    277 		break;
    278 	case NUBUS_DRHW_RPC24XP:
    279 		add_nubus_intr(na->slot, grfmv_intr_radius24, sc);
    280 		break;
    281 	case NUBUS_DRHW_RADGSC:
    282 		add_nubus_intr(na->slot, grfmv_intr_radius_gsc, sc);
    283 		break;
    284 	case NUBUS_DRHW_FIILX:
    285 	case NUBUS_DRHW_FIISXDSP:
    286 	case NUBUS_DRHW_FUTURASX:
    287 		sc->cli_offset = 0xf05000;
    288 		sc->cli_value = 0x80;
    289 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    290 		break;
    291 	case NUBUS_DRHW_SAM768:
    292 		add_nubus_intr(na->slot, grfmv_intr_cti, sc);
    293 		break;
    294 	case NUBUS_DRHW_SUPRGFX:
    295 		add_nubus_intr(na->slot, grfmv_intr_supermacgfx, sc);
    296 		break;
    297 	case NUBUS_DRHW_SPECTRM8:
    298 		sc->cli_offset = 0x0de178;
    299 		sc->cli_value = 0x80;
    300 		add_nubus_intr(na->slot, grfmv_intr_generic_or4, sc);
    301 		break;
    302 	case NUBUS_DRHW_LAPIS:
    303 		add_nubus_intr(na->slot, grfmv_intr_lapis, sc);
    304 		break;
    305 	case NUBUS_DRHW_FORMAC:
    306 		add_nubus_intr(na->slot, grfmv_intr_formac, sc);
    307 		break;
    308 	case NUBUS_DRHW_ROPS24LXI:
    309 	case NUBUS_DRHW_ROPS24XLTV:
    310 	case NUBUS_DRHW_ROPS24MXTV:
    311 		sc->cli_offset = 0xfb0010;
    312 		sc->cli_value = 0x00;
    313 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    314 		break;
    315 	case NUBUS_DRHW_VIMAGE:
    316 		add_nubus_intr(na->slot, grfmv_intr_vimage, sc);
    317 		break;
    318 	case NUBUS_DRHW_GVIMAGE:
    319 		add_nubus_intr(na->slot, grfmv_intr_gvimage, sc);
    320 		break;
    321 	case NUBUS_DRHW_MC2124NB:
    322 		sc->cli_offset = 0xfd1000;
    323 		sc->cli_value = 0x00;
    324 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    325 		break;
    326 	case NUBUS_DRHW_MICRON:
    327 		sc->cli_offset = 0xa00014;
    328 		sc->cli_value = 0;
    329 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    330 		break;
    331 	default:
    332 		printf("%s: Unknown video card ID 0x%x --",
    333 		    sc->sc_dev.dv_xname, sc->card_id);
    334 		printf(" Not installing interrupt routine.\n");
    335 		break;
    336 	}
    337 
    338 	/* Perform common video attachment. */
    339 	grf_establish(sc, &sc->sc_slot, grfmv_mode);
    340 }
    341 
    342 static int
    343 grfmv_mode(gp, cmd, arg)
    344 	struct grf_softc *gp;
    345 	int cmd;
    346 	void *arg;
    347 {
    348 	switch (cmd) {
    349 	case GM_GRFON:
    350 	case GM_GRFOFF:
    351 		return 0;
    352 	case GM_CURRMODE:
    353 		break;
    354 	case GM_NEWMODE:
    355 		break;
    356 	case GM_LISTMODES:
    357 		break;
    358 	}
    359 	return EINVAL;
    360 }
    361 
    362 /* Interrupt handlers... */
    363 /*
    364  * Generic routine to clear interrupts for cards where it simply takes
    365  * a MOV.B to clear the interrupt.  The offset and value of this byte
    366  * varies between cards.
    367  */
    368 /*ARGSUSED*/
    369 static void
    370 grfmv_intr_generic_write1(vsc)
    371 	void	*vsc;
    372 {
    373 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    374 
    375 	bus_space_write_1(sc->sc_tag, sc->sc_handle,
    376 	    sc->cli_offset, (u_int8_t)sc->cli_value);
    377 }
    378 
    379 /*
    380  * Generic routine to clear interrupts for cards where it simply takes
    381  * a MOV.L to clear the interrupt.  The offset and value of this byte
    382  * varies between cards.
    383  */
    384 /*ARGSUSED*/
    385 static void
    386 grfmv_intr_generic_write4(vsc)
    387 	void	*vsc;
    388 {
    389 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    390 
    391 	bus_space_write_4(sc->sc_tag, sc->sc_handle,
    392 	    sc->cli_offset, sc->cli_value);
    393 }
    394 
    395 /*
    396  * Generic routine to clear interrupts for cards where it simply takes
    397  * an OR.L to clear the interrupt.  The offset and value of this byte
    398  * varies between cards.
    399  */
    400 /*ARGSUSED*/
    401 static void
    402 grfmv_intr_generic_or4(vsc)
    403 	void	*vsc;
    404 {
    405 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    406 	unsigned long	scratch;
    407 
    408 	scratch = bus_space_read_4(sc->sc_tag, sc->sc_handle, sc->cli_offset);
    409 	scratch |= 0x80;
    410 	bus_space_write_4(sc->sc_tag, sc->sc_handle, sc->cli_offset, scratch);
    411 }
    412 
    413 /*
    414  * Routine to clear interrupts for the Radius PrecisionColor 8xj card.
    415  */
    416 /*ARGSUSED*/
    417 static void
    418 grfmv_intr_radius(vsc)
    419 	void	*vsc;
    420 {
    421 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    422 	u_int8_t c;
    423 
    424 	c = sc->cli_value;
    425 
    426 	c |= 0x80;
    427 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    428 	c &= 0x7f;
    429 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    430 }
    431 
    432 /*
    433  * Routine to clear interrupts for the Radius PrecisionColor 24Xp card.
    434  * Is this what the 8xj routine is doing, too?
    435  */
    436 /*ARGSUSED*/
    437 static void
    438 grfmv_intr_radius24(vsc)
    439 	void	*vsc;
    440 {
    441 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    442 	u_int8_t c;
    443 
    444 	c = 0x80 | bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfffd8);
    445 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    446 	c &= 0x7f;
    447 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    448 }
    449 
    450 /*
    451  * Routine to clear interrupts on Samsung 768x1006 video controller.
    452  * This controller was manufactured by Cornerstone Technology, Inc.,
    453  * now known as Cornerstone Imaging.
    454  *
    455  * To clear this interrupt, we apparently have to set, then clear,
    456  * bit 2 at byte offset 0x80000 from the card's base.
    457  *	Information for this provided by Brad Salai <bsalai (at) servtech.com>
    458  */
    459 /*ARGSUSED*/
    460 static void
    461 grfmv_intr_cti(vsc)
    462 	void	*vsc;
    463 {
    464 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    465 	u_int8_t c;
    466 
    467 	c = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x80000);
    468 	c |= 0x02;
    469 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c);
    470 	c &= 0xfd;
    471 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c);
    472 }
    473 
    474 /*ARGSUSED*/
    475 static void
    476 grfmv_intr_cb264(vsc)
    477 	void	*vsc;
    478 {
    479 	struct grfbus_softc *sc;
    480 	volatile char *slotbase;
    481 
    482 	sc = (struct grfbus_softc *)vsc;
    483 	slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */
    484 	asm volatile("	movl	%0,a0
    485 			movl	a0@(0xff6028),d0
    486 			andl	#0x2,d0
    487 			beq	_mv_intr0
    488 			movql	#0x3,d0
    489 		_mv_intr0:
    490 			movl	a0@(0xff600c),d1
    491 			andl	#0x3,d1
    492 			cmpl	d1,d0
    493 			beq	_mv_intr_fin
    494 			movl	d0,a0@(0xff600c)
    495 			nop
    496 			tstb	d0
    497 			beq	_mv_intr1
    498 			movl	#0x0002,a0@(0xff6040)
    499 			movl	#0x0102,a0@(0xff6044)
    500 			movl	#0x0105,a0@(0xff6048)
    501 			movl	#0x000e,a0@(0xff604c)
    502 			movl	#0x001c,a0@(0xff6050)
    503 			movl	#0x00bc,a0@(0xff6054)
    504 			movl	#0x00c3,a0@(0xff6058)
    505 			movl	#0x0061,a0@(0xff605c)
    506 			movl	#0x0012,a0@(0xff6060)
    507 			bra	_mv_intr_fin
    508 		_mv_intr1:
    509 			movl	#0x0002,a0@(0xff6040)
    510 			movl	#0x0209,a0@(0xff6044)
    511 			movl	#0x020c,a0@(0xff6048)
    512 			movl	#0x000f,a0@(0xff604c)
    513 			movl	#0x0027,a0@(0xff6050)
    514 			movl	#0x00c7,a0@(0xff6054)
    515 			movl	#0x00d7,a0@(0xff6058)
    516 			movl	#0x006b,a0@(0xff605c)
    517 			movl	#0x0029,a0@(0xff6060)
    518 		_mv_intr_fin:
    519 			movl	#0x1,a0@(0xff6014)"
    520 		: : "g" (slotbase) : "a0","d0","d1");
    521 }
    522 
    523 /*
    524  * Support for the Colorboard 364 might be more complex than it needs to
    525  * be.  If we can find more information about this card, this might be
    526  * significantly simplified.  Contributions welcome...  :-)
    527  */
    528 /*ARGSUSED*/
    529 static void
    530 grfmv_intr_cb364(vsc)
    531 	void	*vsc;
    532 {
    533 	struct grfbus_softc *sc;
    534 	volatile char *slotbase;
    535 
    536 	sc = (struct grfbus_softc *)vsc;
    537 	slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */
    538 	asm volatile("	movl	%0,a0
    539 			movl	a0@(0xfe6028),d0
    540 			andl	#0x2,d0
    541 			beq	_cb364_intr4
    542 			movql	#0x3,d0
    543 			movl	a0@(0xfe6018),d1
    544 			movl	#0x3,a0@(0xfe6018)
    545 			movw	a0@(0xfe7010),d2
    546 			movl	d1,a0@(0xfe6018)
    547 			movl	a0@(0xfe6020),d1
    548 			btst	#0x06,d2
    549 			beq	_cb364_intr0
    550 			btst	#0x00,d1
    551 			beq	_cb364_intr5
    552 			bsr	_cb364_intr1
    553 			bra	_cb364_intr_out
    554 		_cb364_intr0:
    555 			btst	#0x00,d1
    556 			bne	_cb364_intr5
    557 			bsr	_cb364_intr1
    558 			bra	_cb364_intr_out
    559 		_cb364_intr1:
    560 			movl	d0,a0@(0xfe600c)
    561 			nop
    562 			tstb	d0
    563 			beq	_cb364_intr3
    564 			movl	#0x0002,a0@(0xfe6040)
    565 			movl	#0x0105,a0@(0xfe6048)
    566 			movl	#0x000e,a0@(0xfe604c)
    567 			movl	#0x00c3,a0@(0xfe6058)
    568 			movl	#0x0061,a0@(0xfe605c)
    569 			btst	#0x06,d2
    570 			beq	_cb364_intr2
    571 			movl	#0x001c,a0@(0xfe6050)
    572 			movl	#0x00bc,a0@(0xfe6054)
    573 			movl	#0x0012,a0@(0xfe6060)
    574 			movl	#0x000e,a0@(0xfe6044)
    575 			movl	#0x00c3,a0@(0xfe6064)
    576 			movl	#0x0061,a0@(0xfe6020)
    577 			rts
    578 		_cb364_intr2:
    579 			movl	#0x0016,a0@(0xfe6050)
    580 			movl	#0x00b6,a0@(0xfe6054)
    581 			movl	#0x0011,a0@(0xfe6060)
    582 			movl	#0x0101,a0@(0xfe6044)
    583 			movl	#0x00bf,a0@(0xfe6064)
    584 			movl	#0x0001,a0@(0xfe6020)
    585 			rts
    586 		_cb364_intr3:
    587 			movl	#0x0002,a0@(0xfe6040)
    588 			movl	#0x0209,a0@(0xfe6044)
    589 			movl	#0x020c,a0@(0xfe6048)
    590 			movl	#0x000f,a0@(0xfe604c)
    591 			movl	#0x0027,a0@(0xfe6050)
    592 			movl	#0x00c7,a0@(0xfe6054)
    593 			movl	#0x00d7,a0@(0xfe6058)
    594 			movl	#0x006b,a0@(0xfe605c)
    595 			movl	#0x0029,a0@(0xfe6060)
    596 			oril	#0x0040,a0@(0xfe6064)
    597 			movl	#0x0000,a0@(0xfe6020)
    598 			rts
    599 		_cb364_intr4:
    600 			movq	#0x00,d0
    601 		_cb364_intr5:
    602 			movl	a0@(0xfe600c),d1
    603 			andl	#0x3,d1
    604 			cmpl	d1,d0
    605 			beq	_cb364_intr_out
    606 			bsr	_cb364_intr1
    607 		_cb364_intr_out:
    608 			movl	#0x1,a0@(0xfe6014)
    609 		_cb364_intr_quit:
    610 		" : : "g" (slotbase) : "a0","d0","d1","d2");
    611 }
    612 
    613 /*
    614  * Interrupt clearing routine for SuperMac GFX card.
    615  */
    616 /*ARGSUSED*/
    617 static void
    618 grfmv_intr_supermacgfx(vsc)
    619 	void	*vsc;
    620 {
    621 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    622 	u_int8_t dummy;
    623 
    624 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xE70D3);
    625 }
    626 
    627 /*
    628  * Routine to clear interrupts for the Sigma Designs ColorMax card.
    629  */
    630 /*ARGSUSED*/
    631 static void
    632 grfmv_intr_cmax(vsc)
    633 	void	*vsc;
    634 {
    635 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    636 	u_int32_t dummy;
    637 
    638 	dummy = bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf501c);
    639 	dummy = bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf5018);
    640 }
    641 
    642 /*
    643  * Routine to clear interrupts for the Lapis ProColorServer 8 PDS card
    644  * (for the SE/30).
    645  */
    646 /*ARGSUSED*/
    647 static void
    648 grfmv_intr_lapis(vsc)
    649 	void	*vsc;
    650 {
    651 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    652 
    653 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x08);
    654 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x0C);
    655 }
    656 
    657 /*
    658  * Routine to clear interrupts for the Formac Color Card II
    659  */
    660 /*ARGSUSED*/
    661 static void
    662 grfmv_intr_formac(vsc)
    663 	void	*vsc;
    664 {
    665 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    666 	u_int8_t dummy;
    667 
    668 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80db);
    669 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80d3);
    670 }
    671 
    672 /*
    673  * Routine to clear interrupts for the Vimage by Interware Co., Ltd.
    674  */
    675 /*ARGSUSED*/
    676 static void
    677 grfmv_intr_vimage(vsc)
    678 	void	*vsc;
    679 {
    680 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    681 
    682 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0x67);
    683 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0xE7);
    684 }
    685 
    686 /*
    687  * Routine to clear interrupts for the Grand Vimage by Interware Co., Ltd.
    688  */
    689 /*ARGSUSED*/
    690 static void
    691 grfmv_intr_gvimage(vsc)
    692 	void	*vsc;
    693 {
    694 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    695 	u_int8_t dummy;
    696 
    697 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xf00000);
    698 }
    699 
    700 /*
    701  * Routine to clear interrupts for the Radius GS/C
    702  */
    703 /*ARGSUSED*/
    704 static void
    705 grfmv_intr_radius_gsc(vsc)
    706 	void	*vsc;
    707 {
    708 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    709 	u_int8_t dummy;
    710 
    711 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfb802);
    712 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xfb802, 0xff);
    713 }
    714 
    715