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grf_nubus.c revision 1.64
      1 /*	$NetBSD: grf_nubus.c,v 1.64 2002/05/30 21:36:38 thorpej 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 static void	grfmv_intr_radius_gx __P((void *vsc));
     69 
     70 static int	grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg));
     71 static int	grfmv_match __P((struct device *, struct cfdata *, void *));
     72 static void	grfmv_attach __P((struct device *, struct device *, void *));
     73 
     74 struct cfattach macvid_ca = {
     75 	sizeof(struct grfbus_softc), grfmv_match, grfmv_attach
     76 };
     77 
     78 static void
     79 load_image_data(data, image)
     80 	caddr_t	data;
     81 	struct	image_data *image;
     82 {
     83 	bcopy(data     , &image->size,       4);
     84 	bcopy(data +  4, &image->offset,     4);
     85 	bcopy(data +  8, &image->rowbytes,   2);
     86 	bcopy(data + 10, &image->top,        2);
     87 	bcopy(data + 12, &image->left,       2);
     88 	bcopy(data + 14, &image->bottom,     2);
     89 	bcopy(data + 16, &image->right,      2);
     90 	bcopy(data + 18, &image->version,    2);
     91 	bcopy(data + 20, &image->packType,   2);
     92 	bcopy(data + 22, &image->packSize,   4);
     93 	bcopy(data + 26, &image->hRes,       4);
     94 	bcopy(data + 30, &image->vRes,       4);
     95 	bcopy(data + 34, &image->pixelType,  2);
     96 	bcopy(data + 36, &image->pixelSize,  2);
     97 	bcopy(data + 38, &image->cmpCount,   2);
     98 	bcopy(data + 40, &image->cmpSize,    2);
     99 	bcopy(data + 42, &image->planeBytes, 4);
    100 }
    101 
    102 
    103 static int
    104 grfmv_match(parent, cf, aux)
    105 	struct device *parent;
    106 	struct cfdata *cf;
    107 	void *aux;
    108 {
    109 	struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
    110 
    111 	if (na->category != NUBUS_CATEGORY_DISPLAY)
    112 		return 0;
    113 
    114 	if (na->type != NUBUS_TYPE_VIDEO)
    115 		return 0;
    116 
    117 	if (na->drsw != NUBUS_DRSW_APPLE)
    118 		return 0;
    119 
    120 	/*
    121 	 * If we've gotten this far, then we're dealing with a real-live
    122 	 * Apple QuickDraw-compatible display card resource.  Now, how to
    123 	 * determine that this is an active resource???  Dunno.  But we'll
    124 	 * proceed like it is.
    125 	 */
    126 
    127 	return 1;
    128 }
    129 
    130 static void
    131 grfmv_attach(parent, self, aux)
    132 	struct device *parent, *self;
    133 	void *aux;
    134 {
    135 	struct grfbus_softc *sc = (struct grfbus_softc *)self;
    136 	struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
    137 	struct image_data image_store, image;
    138 	struct grfmode *gm;
    139 	char cardname[CARD_NAME_LEN];
    140 	nubus_dirent dirent;
    141 	nubus_dir dir, mode_dir;
    142 	int mode;
    143 
    144 	bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot));
    145 
    146 	sc->sc_tag = na->na_tag;
    147 	sc->card_id = na->drhw;
    148 	sc->sc_basepa = (bus_addr_t)NUBUS_SLOT2PA(na->slot);
    149 	sc->sc_fbofs = 0;
    150 
    151 	if (bus_space_map(sc->sc_tag, sc->sc_basepa, NBMEMSIZE,
    152 	    0, &sc->sc_handle)) {
    153 		printf(": grfmv_attach: failed to map slot %d\n", na->slot);
    154 		return;
    155 	}
    156 
    157 	nubus_get_main_dir(&sc->sc_slot, &dir);
    158 
    159 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    160 	    &sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) {
    161 bad:
    162 		bus_space_unmap(sc->sc_tag, sc->sc_handle, NBMEMSIZE);
    163 		return;
    164 	}
    165 
    166 	nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir);
    167 
    168 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    169 	    &sc->sc_slot, &sc->board_dir, NUBUS_RSRC_TYPE, &dirent) <= 0)
    170 		if ((na->rsrcid != 128) ||
    171 		    (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    172 		    &sc->sc_slot, &dir, 129, &dirent) <= 0))
    173 			goto bad;
    174 
    175 	mode = NUBUS_RSRC_FIRSTMODE;
    176 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    177 	    &sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) {
    178 		printf(": probe failed to get board rsrc.\n");
    179 		goto bad;
    180 	}
    181 
    182 	nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir);
    183 
    184 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    185 	    &sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) <= 0) {
    186 		printf(": probe failed to get mode dir.\n");
    187 		goto bad;
    188 	}
    189 
    190 	if (nubus_get_ind_data(sc->sc_tag, sc->sc_handle, &sc->sc_slot,
    191 	    &dirent, (caddr_t)&image_store, sizeof(struct image_data)) <= 0) {
    192 		printf(": probe failed to get indirect mode data.\n");
    193 		goto bad;
    194 	}
    195 
    196 	/* Need to load display info (and driver?), etc... (?) */
    197 
    198 	load_image_data((caddr_t)&image_store, &image);
    199 
    200 	gm = &sc->curr_mode;
    201 	gm->mode_id = mode;
    202 	gm->ptype = image.pixelType;
    203 	gm->psize = image.pixelSize;
    204 	gm->width = image.right - image.left;
    205 	gm->height = image.bottom - image.top;
    206 	gm->rowbytes = image.rowbytes;
    207 	gm->hres = image.hRes;
    208 	gm->vres = image.vRes;
    209 	gm->fbsize = gm->height * gm->rowbytes;
    210 	gm->fbbase = (caddr_t)(sc->sc_handle.base);	/* XXX evil hack */
    211 	gm->fboff = image.offset;
    212 
    213 	strncpy(cardname, nubus_get_card_name(sc->sc_tag, sc->sc_handle,
    214 	    &sc->sc_slot), CARD_NAME_LEN);
    215 	cardname[CARD_NAME_LEN-1] = '\0';
    216 	printf(": %s\n", cardname);
    217 
    218 	if (sc->card_id == NUBUS_DRHW_TFB) {
    219 		/*
    220 		 * This is the Toby card, but apparently some manufacturers
    221 		 * (like Cornerstone) didn't bother to get/use their own
    222 		 * value here, even though the cards are different, so we
    223 		 * so we try to differentiate here.
    224 		 */
    225 		if (strncmp(cardname, "Samsung 768", 11) == 0)
    226 			sc->card_id = NUBUS_DRHW_SAM768;
    227 		else if (strncmp(cardname, "Toby frame", 10) != 0)
    228 			printf("%s: This display card pretends to be a TFB!\n",
    229 			    sc->sc_dev.dv_xname);
    230 	}
    231 
    232 	switch (sc->card_id) {
    233 	case NUBUS_DRHW_TFB:
    234 	case NUBUS_DRHW_M2HRVC:
    235 	case NUBUS_DRHW_PVC:
    236 		sc->cli_offset = 0xa0000;
    237 		sc->cli_value = 0;
    238 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    239 		break;
    240 	case NUBUS_DRHW_WVC:
    241 		sc->cli_offset = 0xa00000;
    242 		sc->cli_value = 0;
    243 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    244 		break;
    245 	case NUBUS_DRHW_COLORMAX:
    246 		add_nubus_intr(na->slot, grfmv_intr_cmax, sc);
    247 		break;
    248 	case NUBUS_DRHW_SE30:
    249 		/* Do nothing--SE/30 interrupts are disabled */
    250 		break;
    251 	case NUBUS_DRHW_MDC:
    252 		sc->cli_offset = 0x200148;
    253 		sc->cli_value = 1;
    254 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    255 
    256 		/* Enable interrupts; to disable, write 0x7 to this location */
    257 		bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x20013C, 5);
    258 		break;
    259 	case NUBUS_DRHW_CB264:
    260 		add_nubus_intr(na->slot, grfmv_intr_cb264, sc);
    261 		break;
    262 	case NUBUS_DRHW_CB364:
    263 		add_nubus_intr(na->slot, grfmv_intr_cb364, sc);
    264 		break;
    265 	case NUBUS_DRHW_RPC8:
    266 		sc->cli_offset = 0xfdff8f;
    267 		sc->cli_value = 0xff;
    268 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    269 		break;
    270 	case NUBUS_DRHW_RPC8XJ:
    271 		sc->cli_value = 0x66;
    272 		add_nubus_intr(na->slot, grfmv_intr_radius, sc);
    273 		break;
    274 	case NUBUS_DRHW_RPC24X:
    275 	case NUBUS_DRHW_BOOGIE:
    276 		sc->cli_value = 0x64;
    277 		add_nubus_intr(na->slot, grfmv_intr_radius, sc);
    278 		break;
    279 	case NUBUS_DRHW_RPC24XP:
    280 		add_nubus_intr(na->slot, grfmv_intr_radius24, sc);
    281 		break;
    282 	case NUBUS_DRHW_RADGSC:
    283 		add_nubus_intr(na->slot, grfmv_intr_radius_gsc, sc);
    284 		break;
    285 	case NUBUS_DRHW_RDCGX:
    286 		add_nubus_intr(na->slot, grfmv_intr_radius_gx, sc);
    287 		break;
    288 	case NUBUS_DRHW_FIILX:
    289 	case NUBUS_DRHW_FIISXDSP:
    290 	case NUBUS_DRHW_FUTURASX:
    291 		sc->cli_offset = 0xf05000;
    292 		sc->cli_value = 0x80;
    293 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    294 		break;
    295 	case NUBUS_DRHW_SAM768:
    296 		add_nubus_intr(na->slot, grfmv_intr_cti, sc);
    297 		break;
    298 	case NUBUS_DRHW_SUPRGFX:
    299 		add_nubus_intr(na->slot, grfmv_intr_supermacgfx, sc);
    300 		break;
    301 	case NUBUS_DRHW_SPECTRM8:
    302 		sc->cli_offset = 0x0de178;
    303 		sc->cli_value = 0x80;
    304 		add_nubus_intr(na->slot, grfmv_intr_generic_or4, sc);
    305 		break;
    306 	case NUBUS_DRHW_LAPIS:
    307 		add_nubus_intr(na->slot, grfmv_intr_lapis, sc);
    308 		break;
    309 	case NUBUS_DRHW_FORMAC:
    310 		add_nubus_intr(na->slot, grfmv_intr_formac, sc);
    311 		break;
    312 	case NUBUS_DRHW_ROPS24LXI:
    313 	case NUBUS_DRHW_ROPS24XLTV:
    314 	case NUBUS_DRHW_ROPS24MXTV:
    315 		sc->cli_offset = 0xfb0010;
    316 		sc->cli_value = 0x00;
    317 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    318 		break;
    319 	case NUBUS_DRHW_ROPSPPGT:
    320 		sc->cli_offset = 0xf50010;
    321 		sc->cli_value = 0x02;
    322 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    323 		break;
    324 	case NUBUS_DRHW_VIMAGE:
    325 		add_nubus_intr(na->slot, grfmv_intr_vimage, sc);
    326 		break;
    327 	case NUBUS_DRHW_GVIMAGE:
    328 		add_nubus_intr(na->slot, grfmv_intr_gvimage, sc);
    329 		break;
    330 	case NUBUS_DRHW_MC2124NB:
    331 		sc->cli_offset = 0xfd1000;
    332 		sc->cli_value = 0x00;
    333 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    334 		break;
    335 	case NUBUS_DRHW_MICRON:
    336 		sc->cli_offset = 0xa00014;
    337 		sc->cli_value = 0;
    338 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    339 		break;
    340 	default:
    341 		printf("%s: Unknown video card ID 0x%x --",
    342 		    sc->sc_dev.dv_xname, sc->card_id);
    343 		printf(" Not installing interrupt routine.\n");
    344 		break;
    345 	}
    346 
    347 	/* Perform common video attachment. */
    348 	grf_establish(sc, &sc->sc_slot, grfmv_mode);
    349 }
    350 
    351 static int
    352 grfmv_mode(gp, cmd, arg)
    353 	struct grf_softc *gp;
    354 	int cmd;
    355 	void *arg;
    356 {
    357 	switch (cmd) {
    358 	case GM_GRFON:
    359 	case GM_GRFOFF:
    360 		return 0;
    361 	case GM_CURRMODE:
    362 		break;
    363 	case GM_NEWMODE:
    364 		break;
    365 	case GM_LISTMODES:
    366 		break;
    367 	}
    368 	return EINVAL;
    369 }
    370 
    371 /* Interrupt handlers... */
    372 /*
    373  * Generic routine to clear interrupts for cards where it simply takes
    374  * a MOV.B to clear the interrupt.  The offset and value of this byte
    375  * varies between cards.
    376  */
    377 /*ARGSUSED*/
    378 static void
    379 grfmv_intr_generic_write1(vsc)
    380 	void	*vsc;
    381 {
    382 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    383 
    384 	bus_space_write_1(sc->sc_tag, sc->sc_handle,
    385 	    sc->cli_offset, (u_int8_t)sc->cli_value);
    386 }
    387 
    388 /*
    389  * Generic routine to clear interrupts for cards where it simply takes
    390  * a MOV.L to clear the interrupt.  The offset and value of this byte
    391  * varies between cards.
    392  */
    393 /*ARGSUSED*/
    394 static void
    395 grfmv_intr_generic_write4(vsc)
    396 	void	*vsc;
    397 {
    398 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    399 
    400 	bus_space_write_4(sc->sc_tag, sc->sc_handle,
    401 	    sc->cli_offset, sc->cli_value);
    402 }
    403 
    404 /*
    405  * Generic routine to clear interrupts for cards where it simply takes
    406  * an OR.L to clear the interrupt.  The offset and value of this byte
    407  * varies between cards.
    408  */
    409 /*ARGSUSED*/
    410 static void
    411 grfmv_intr_generic_or4(vsc)
    412 	void	*vsc;
    413 {
    414 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    415 	unsigned long	scratch;
    416 
    417 	scratch = bus_space_read_4(sc->sc_tag, sc->sc_handle, sc->cli_offset);
    418 	scratch |= 0x80;
    419 	bus_space_write_4(sc->sc_tag, sc->sc_handle, sc->cli_offset, scratch);
    420 }
    421 
    422 /*
    423  * Routine to clear interrupts for the Radius PrecisionColor 8xj card.
    424  */
    425 /*ARGSUSED*/
    426 static void
    427 grfmv_intr_radius(vsc)
    428 	void	*vsc;
    429 {
    430 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    431 	u_int8_t c;
    432 
    433 	c = sc->cli_value;
    434 
    435 	c |= 0x80;
    436 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    437 	c &= 0x7f;
    438 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    439 }
    440 
    441 /*
    442  * Routine to clear interrupts for the Radius PrecisionColor 24Xp card.
    443  * Is this what the 8xj routine is doing, too?
    444  */
    445 /*ARGSUSED*/
    446 static void
    447 grfmv_intr_radius24(vsc)
    448 	void	*vsc;
    449 {
    450 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    451 	u_int8_t c;
    452 
    453 	c = 0x80 | bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfffd8);
    454 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    455 	c &= 0x7f;
    456 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    457 }
    458 
    459 /*
    460  * Routine to clear interrupts on Samsung 768x1006 video controller.
    461  * This controller was manufactured by Cornerstone Technology, Inc.,
    462  * now known as Cornerstone Imaging.
    463  *
    464  * To clear this interrupt, we apparently have to set, then clear,
    465  * bit 2 at byte offset 0x80000 from the card's base.
    466  *	Information for this provided by Brad Salai <bsalai (at) servtech.com>
    467  */
    468 /*ARGSUSED*/
    469 static void
    470 grfmv_intr_cti(vsc)
    471 	void	*vsc;
    472 {
    473 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    474 	u_int8_t c;
    475 
    476 	c = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x80000);
    477 	c |= 0x02;
    478 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c);
    479 	c &= 0xfd;
    480 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c);
    481 }
    482 
    483 /*ARGSUSED*/
    484 static void
    485 grfmv_intr_cb264(vsc)
    486 	void	*vsc;
    487 {
    488 	struct grfbus_softc *sc;
    489 	volatile char *slotbase;
    490 
    491 	sc = (struct grfbus_softc *)vsc;
    492 	slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */
    493 	__asm __volatile(
    494 		"	movl	%0,%%a0				\n"
    495 		"	movl	%%a0@(0xff6028),%%d0		\n"
    496 		"	andl	#0x2,%%d0			\n"
    497 		"	beq	_mv_intr0			\n"
    498 		"	movql	#0x3,%%d0			\n"
    499 		"_mv_intr0:					\n"
    500 		"	movl	%%a0@(0xff600c),%%d1		\n"
    501 		"	andl	#0x3,%%d1			\n"
    502 		"	cmpl	%%d1,%%d0			\n"
    503 		"	beq	_mv_intr_fin			\n"
    504 		"	movl	%%d0,%%a0@(0xff600c)		\n"
    505 		"	nop					\n"
    506 		"	tstb	%%d0				\n"
    507 		"	beq	_mv_intr1			\n"
    508 		"	movl	#0x0002,%%a0@(0xff6040)		\n"
    509 		"	movl	#0x0102,%%a0@(0xff6044)		\n"
    510 		"	movl	#0x0105,%%a0@(0xff6048)		\n"
    511 		"	movl	#0x000e,%%a0@(0xff604c)		\n"
    512 		"	movl	#0x001c,%%a0@(0xff6050)		\n"
    513 		"	movl	#0x00bc,%%a0@(0xff6054)		\n"
    514 		"	movl	#0x00c3,%%a0@(0xff6058)		\n"
    515 		"	movl	#0x0061,%%a0@(0xff605c)		\n"
    516 		"	movl	#0x0012,%%a0@(0xff6060)		\n"
    517 		"	bra	_mv_intr_fin			\n"
    518 		"_mv_intr1:					\n"
    519 		"	movl	#0x0002,%%a0@(0xff6040)		\n"
    520 		"	movl	#0x0209,%%a0@(0xff6044)		\n"
    521 		"	movl	#0x020c,%%a0@(0xff6048)		\n"
    522 		"	movl	#0x000f,%%a0@(0xff604c)		\n"
    523 		"	movl	#0x0027,%%a0@(0xff6050)		\n"
    524 		"	movl	#0x00c7,%%a0@(0xff6054)		\n"
    525 		"	movl	#0x00d7,%%a0@(0xff6058)		\n"
    526 		"	movl	#0x006b,%%a0@(0xff605c)		\n"
    527 		"	movl	#0x0029,%%a0@(0xff6060)		\n"
    528 		"_mv_intr_fin:					\n"
    529 		"	movl	#0x1,%%a0@(0xff6014)"
    530 		: : "g" (slotbase) : "a0","d0","d1");
    531 }
    532 
    533 /*
    534  * Support for the Colorboard 364 might be more complex than it needs to
    535  * be.  If we can find more information about this card, this might be
    536  * significantly simplified.  Contributions welcome...  :-)
    537  */
    538 /*ARGSUSED*/
    539 static void
    540 grfmv_intr_cb364(vsc)
    541 	void	*vsc;
    542 {
    543 	struct grfbus_softc *sc;
    544 	volatile char *slotbase;
    545 
    546 	sc = (struct grfbus_softc *)vsc;
    547 	slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */
    548 	__asm __volatile(
    549 		"	movl	%0,%%a0				\n"
    550 		"	movl	%%a0@(0xfe6028),%%d0		\n"
    551 		"	andl	#0x2,%%d0			\n"
    552 		"	beq	_cb364_intr4			\n"
    553 		"	movql	#0x3,%%d0			\n"
    554 		"	movl	%%a0@(0xfe6018),%%d1		\n"
    555 		"	movl	#0x3,%%a0@(0xfe6018)		\n"
    556 		"	movw	%%a0@(0xfe7010),%%d2		\n"
    557 		"	movl	%%d1,%%a0@(0xfe6018)		\n"
    558 		"	movl	%%a0@(0xfe6020),%%d1		\n"
    559 		"	btst	#0x06,%%d2			\n"
    560 		"	beq	_cb364_intr0			\n"
    561 		"	btst	#0x00,%%d1			\n"
    562 		"	beq	_cb364_intr5			\n"
    563 		"	bsr	_cb364_intr1			\n"
    564 		"	bra	_cb364_intr_out			\n"
    565 		"_cb364_intr0:					\n"
    566 		"	btst	#0x00,%%d1			\n"
    567 		"	bne	_cb364_intr5			\n"
    568 		"	bsr	_cb364_intr1			\n"
    569 		"	bra	_cb364_intr_out			\n"
    570 		"_cb364_intr1:					\n"
    571 		"	movl	%%d0,%%a0@(0xfe600c)		\n"
    572 		"	nop					\n"
    573 		"	tstb	%%d0				\n"
    574 		"	beq	_cb364_intr3			\n"
    575 		"	movl	#0x0002,%%a0@(0xfe6040)		\n"
    576 		"	movl	#0x0105,%%a0@(0xfe6048)		\n"
    577 		"	movl	#0x000e,%%a0@(0xfe604c)		\n"
    578 		"	movl	#0x00c3,%%a0@(0xfe6058)		\n"
    579 		"	movl	#0x0061,%%a0@(0xfe605c)		\n"
    580 		"	btst	#0x06,%%d2			\n"
    581 		"	beq	_cb364_intr2			\n"
    582 		"	movl	#0x001c,%%a0@(0xfe6050)		\n"
    583 		"	movl	#0x00bc,%%a0@(0xfe6054)		\n"
    584 		"	movl	#0x0012,%%a0@(0xfe6060)		\n"
    585 		"	movl	#0x000e,%%a0@(0xfe6044)		\n"
    586 		"	movl	#0x00c3,%%a0@(0xfe6064)		\n"
    587 		"	movl	#0x0061,%%a0@(0xfe6020)		\n"
    588 		"	rts					\n"
    589 		"_cb364_intr2:					\n"
    590 		"	movl	#0x0016,%%a0@(0xfe6050)		\n"
    591 		"	movl	#0x00b6,%%a0@(0xfe6054)		\n"
    592 		"	movl	#0x0011,%%a0@(0xfe6060)		\n"
    593 		"	movl	#0x0101,%%a0@(0xfe6044)		\n"
    594 		"	movl	#0x00bf,%%a0@(0xfe6064)		\n"
    595 		"	movl	#0x0001,%%a0@(0xfe6020)		\n"
    596 		"	rts					\n"
    597 		"_cb364_intr3:					\n"
    598 		"	movl	#0x0002,%%a0@(0xfe6040)		\n"
    599 		"	movl	#0x0209,%%a0@(0xfe6044)		\n"
    600 		"	movl	#0x020c,%%a0@(0xfe6048)		\n"
    601 		"	movl	#0x000f,%%a0@(0xfe604c)		\n"
    602 		"	movl	#0x0027,%%a0@(0xfe6050)		\n"
    603 		"	movl	#0x00c7,%%a0@(0xfe6054)		\n"
    604 		"	movl	#0x00d7,%%a0@(0xfe6058)		\n"
    605 		"	movl	#0x006b,%%a0@(0xfe605c)		\n"
    606 		"	movl	#0x0029,%%a0@(0xfe6060)		\n"
    607 		"	oril	#0x0040,%%a0@(0xfe6064)		\n"
    608 		"	movl	#0x0000,%%a0@(0xfe6020)		\n"
    609 		"	rts					\n"
    610 		"_cb364_intr4:					\n"
    611 		"	movq	#0x00,%%d0			\n"
    612 		"_cb364_intr5:					\n"
    613 		"	movl	%%a0@(0xfe600c),%%d1		\n"
    614 		"	andl	#0x3,%%d1			\n"
    615 		"	cmpl	%%d1,%%d0			\n"
    616 		"	beq	_cb364_intr_out			\n"
    617 		"	bsr	_cb364_intr1			\n"
    618 		"_cb364_intr_out:				\n"
    619 		"	movl	#0x1,%%a0@(0xfe6014)		\n"
    620 		"_cb364_intr_quit:"
    621 		: : "g" (slotbase) : "a0","d0","d1","d2");
    622 }
    623 
    624 /*
    625  * Interrupt clearing routine for SuperMac GFX card.
    626  */
    627 /*ARGSUSED*/
    628 static void
    629 grfmv_intr_supermacgfx(vsc)
    630 	void	*vsc;
    631 {
    632 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    633 	u_int8_t dummy;
    634 
    635 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xE70D3);
    636 }
    637 
    638 /*
    639  * Routine to clear interrupts for the Sigma Designs ColorMax card.
    640  */
    641 /*ARGSUSED*/
    642 static void
    643 grfmv_intr_cmax(vsc)
    644 	void	*vsc;
    645 {
    646 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    647 	u_int32_t dummy;
    648 
    649 	dummy = bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf501c);
    650 	dummy = bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf5018);
    651 }
    652 
    653 /*
    654  * Routine to clear interrupts for the Lapis ProColorServer 8 PDS card
    655  * (for the SE/30).
    656  */
    657 /*ARGSUSED*/
    658 static void
    659 grfmv_intr_lapis(vsc)
    660 	void	*vsc;
    661 {
    662 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    663 
    664 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x08);
    665 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x0C);
    666 }
    667 
    668 /*
    669  * Routine to clear interrupts for the Formac Color Card II
    670  */
    671 /*ARGSUSED*/
    672 static void
    673 grfmv_intr_formac(vsc)
    674 	void	*vsc;
    675 {
    676 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    677 	u_int8_t dummy;
    678 
    679 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80db);
    680 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80d3);
    681 }
    682 
    683 /*
    684  * Routine to clear interrupts for the Vimage by Interware Co., Ltd.
    685  */
    686 /*ARGSUSED*/
    687 static void
    688 grfmv_intr_vimage(vsc)
    689 	void	*vsc;
    690 {
    691 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    692 
    693 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0x67);
    694 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0xE7);
    695 }
    696 
    697 /*
    698  * Routine to clear interrupts for the Grand Vimage by Interware Co., Ltd.
    699  */
    700 /*ARGSUSED*/
    701 static void
    702 grfmv_intr_gvimage(vsc)
    703 	void	*vsc;
    704 {
    705 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    706 	u_int8_t dummy;
    707 
    708 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xf00000);
    709 }
    710 
    711 /*
    712  * Routine to clear interrupts for the Radius GS/C
    713  */
    714 /*ARGSUSED*/
    715 static void
    716 grfmv_intr_radius_gsc(vsc)
    717 	void	*vsc;
    718 {
    719 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    720 	u_int8_t dummy;
    721 
    722 	dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfb802);
    723 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xfb802, 0xff);
    724 }
    725 
    726 /*
    727  * Routine to clear interrupts for the Radius GS/C
    728  */
    729 /*ARGSUSED*/
    730 static void
    731 grfmv_intr_radius_gx(vsc)
    732 	void	*vsc;
    733 {
    734 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    735 
    736 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x600000, 0x00);
    737 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x600000, 0x20);
    738 }
    739