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grf_nubus.c revision 1.77.6.1
      1 /*	$NetBSD: grf_nubus.c,v 1.77.6.1 2016/03/19 11:30:01 skrll 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/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: grf_nubus.c,v 1.77.6.1 2016/03/19 11:30:01 skrll Exp $");
     34 
     35 #include <sys/param.h>
     36 
     37 #include <sys/device.h>
     38 #include <sys/ioctl.h>
     39 #include <sys/file.h>
     40 #include <sys/malloc.h>
     41 #include <sys/mman.h>
     42 #include <sys/proc.h>
     43 #include <sys/systm.h>
     44 
     45 #include <machine/bus.h>
     46 #include <machine/cpu.h>
     47 #include <machine/grfioctl.h>
     48 #include <machine/viareg.h>
     49 
     50 #include <mac68k/nubus/nubus.h>
     51 #include <mac68k/dev/grfvar.h>
     52 
     53 static void	load_image_data(void *, struct image_data *);
     54 
     55 static void	grfmv_intr_generic_write1(void *);
     56 static void	grfmv_intr_generic_write4(void *);
     57 static void	grfmv_intr_generic_or4(void *);
     58 
     59 static void	grfmv_intr_cb264(void *);
     60 static void	grfmv_intr_cb364(void *);
     61 static void	grfmv_intr_cmax(void *);
     62 static void	grfmv_intr_cti(void *);
     63 static void	grfmv_intr_radius(void *);
     64 static void	grfmv_intr_radius24(void *);
     65 static void	grfmv_intr_supermacgfx(void *);
     66 static void	grfmv_intr_lapis(void *);
     67 static void	grfmv_intr_formac(void *);
     68 static void	grfmv_intr_vimage(void *);
     69 static void	grfmv_intr_gvimage(void *);
     70 static void	grfmv_intr_radius_gsc(void *);
     71 static void	grfmv_intr_radius_gx(void *);
     72 static void	grfmv_intr_relax_200(void *);
     73 static void	grfmv_intr_mvc(void *);
     74 static void	grfmv_intr_viltro_340(void *);
     75 
     76 static int	grfmv_mode(struct grf_softc *, int, void *);
     77 static int	grfmv_match(device_t, cfdata_t, void *);
     78 static void	grfmv_attach(device_t, device_t, void *);
     79 
     80 CFATTACH_DECL_NEW(macvid, sizeof(struct grfbus_softc),
     81     grfmv_match, grfmv_attach, NULL, NULL);
     82 
     83 static void
     84 load_image_data(void *	data, struct image_data *image)
     85 {
     86 	char *d = (char*)data;
     87 
     88 	memcpy(&image->size,       d     , 4);
     89 	memcpy(&image->offset,     d +  4, 4);
     90 	memcpy(&image->rowbytes,   d +  8, 2);
     91 	memcpy(&image->top,        d + 10, 2);
     92 	memcpy(&image->left,       d + 12, 2);
     93 	memcpy(&image->bottom,     d + 14, 2);
     94 	memcpy(&image->right,      d + 16, 2);
     95 	memcpy(&image->version,    d + 18, 2);
     96 	memcpy(&image->packType,   d + 20, 2);
     97 	memcpy(&image->packSize,   d + 22, 4);
     98 	memcpy(&image->hRes,       d + 26, 4);
     99 	memcpy(&image->vRes,       d + 30, 4);
    100 	memcpy(&image->pixelType,  d + 34, 2);
    101 	memcpy(&image->pixelSize,  d + 36, 2);
    102 	memcpy(&image->cmpCount,   d + 38, 2);
    103 	memcpy(&image->cmpSize,    d + 40, 2);
    104 	memcpy(&image->planeBytes, d + 42, 4);
    105 }
    106 
    107 
    108 static int
    109 grfmv_match(device_t parent, cfdata_t cf, void *aux)
    110 {
    111 	struct nubus_attach_args *na = (struct nubus_attach_args *)aux;
    112 
    113 	if (na->category != NUBUS_CATEGORY_DISPLAY)
    114 		return 0;
    115 
    116 	if (na->type != NUBUS_TYPE_VIDEO)
    117 		return 0;
    118 
    119 	if (na->drsw != NUBUS_DRSW_APPLE)
    120 		return 0;
    121 
    122 	/*
    123 	 * If we've gotten this far, then we're dealing with a real-live
    124 	 * Apple QuickDraw-compatible display card resource.  Now, how to
    125 	 * determine that this is an active resource???  Dunno.  But we'll
    126 	 * proceed like it is.
    127 	 */
    128 
    129 	return 1;
    130 }
    131 
    132 static void
    133 grfmv_attach(device_t parent, device_t self, void *aux)
    134 {
    135 	struct grfbus_softc *sc = device_private(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 	memcpy(&sc->sc_slot, na->fmt, sizeof(nubus_slot));
    145 
    146 	sc->sc_dev = self;
    147 	sc->sc_tag = na->na_tag;
    148 	sc->card_id = na->drhw;
    149 	sc->sc_basepa = (bus_addr_t)NUBUS_SLOT2PA(na->slot);
    150 	sc->sc_fbofs = 0;
    151 
    152 	if (bus_space_map(sc->sc_tag, sc->sc_basepa, NBMEMSIZE,
    153 	    0, &sc->sc_handle)) {
    154 		printf(": grfmv_attach: failed to map slot %d\n", na->slot);
    155 		return;
    156 	}
    157 
    158 	nubus_get_main_dir(&sc->sc_slot, &dir);
    159 
    160 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    161 	    &sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) {
    162 bad:
    163 		bus_space_unmap(sc->sc_tag, sc->sc_handle, NBMEMSIZE);
    164 		return;
    165 	}
    166 
    167 	nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir);
    168 
    169 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    170 	    &sc->sc_slot, &sc->board_dir, NUBUS_RSRC_TYPE, &dirent) <= 0)
    171 		if ((na->rsrcid != 128) ||
    172 		    (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    173 		    &sc->sc_slot, &dir, 129, &dirent) <= 0))
    174 			goto bad;
    175 
    176 	mode = NUBUS_RSRC_FIRSTMODE;
    177 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    178 	    &sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) {
    179 		printf(": probe failed to get board rsrc.\n");
    180 		goto bad;
    181 	}
    182 
    183 	nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir);
    184 
    185 	if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle,
    186 	    &sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) <= 0) {
    187 		printf(": probe failed to get mode dir.\n");
    188 		goto bad;
    189 	}
    190 
    191 	if (nubus_get_ind_data(sc->sc_tag, sc->sc_handle, &sc->sc_slot,
    192 	    &dirent, (void *)&image_store, sizeof(struct image_data)) <= 0) {
    193 		printf(": probe failed to get indirect mode data.\n");
    194 		goto bad;
    195 	}
    196 
    197 	/* Need to load display info (and driver?), etc... (?) */
    198 
    199 	load_image_data((void *)&image_store, &image);
    200 
    201 	gm = &sc->curr_mode;
    202 	gm->mode_id = mode;
    203 	gm->ptype = image.pixelType;
    204 	gm->psize = image.pixelSize;
    205 	gm->width = image.right - image.left;
    206 	gm->height = image.bottom - image.top;
    207 	gm->rowbytes = image.rowbytes;
    208 	gm->hres = image.hRes;
    209 	gm->vres = image.vRes;
    210 	gm->fbsize = gm->height * gm->rowbytes;
    211 	gm->fbbase = (void *)(sc->sc_handle.base);	/* XXX evil hack */
    212 	gm->fboff = image.offset;
    213 
    214 	strncpy(cardname, nubus_get_card_name(sc->sc_tag, sc->sc_handle,
    215 	    &sc->sc_slot), CARD_NAME_LEN);
    216 	cardname[CARD_NAME_LEN-1] = '\0';
    217 	printf(": %s\n", cardname);
    218 
    219 	if (sc->card_id == NUBUS_DRHW_TFB) {
    220 		/*
    221 		 * This is the Toby card, but apparently some manufacturers
    222 		 * (like Cornerstone) didn't bother to get/use their own
    223 		 * value here, even though the cards are different, so we
    224 		 * try to differentiate here.
    225 		 */
    226 		if (strncmp(cardname, "Samsung 768", 11) == 0)
    227 			sc->card_id = NUBUS_DRHW_SAM768;
    228 		else if (strncmp(cardname, "Toby frame", 10) != 0)
    229 			printf("%s: This display card pretends to be a TFB!\n",
    230 			    device_xname(self));
    231 	}
    232 
    233 	switch (sc->card_id) {
    234 	case NUBUS_DRHW_TFB:
    235 	case NUBUS_DRHW_M2HRVC:
    236 	case NUBUS_DRHW_PVC:
    237 		sc->cli_offset = 0xa0000;
    238 		sc->cli_value = 0;
    239 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    240 		break;
    241 	case NUBUS_DRHW_WVC:
    242 		sc->cli_offset = 0xa00000;
    243 		sc->cli_value = 0;
    244 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    245 		break;
    246 	case NUBUS_DRHW_COLORMAX:
    247 		add_nubus_intr(na->slot, grfmv_intr_cmax, sc);
    248 		break;
    249 	case NUBUS_DRHW_SE30:
    250 		/* Do nothing--SE/30 interrupts are disabled */
    251 		break;
    252 	case NUBUS_DRHW_MDC:
    253 		sc->cli_offset = 0x200148;
    254 		sc->cli_value = 1;
    255 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    256 
    257 		/* Enable interrupts; to disable, write 0x7 to this location */
    258 		bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x20013C, 5);
    259 		break;
    260 	case NUBUS_DRHW_CB264:
    261 		add_nubus_intr(na->slot, grfmv_intr_cb264, sc);
    262 		break;
    263 	case NUBUS_DRHW_CB364:
    264 		add_nubus_intr(na->slot, grfmv_intr_cb364, sc);
    265 		break;
    266 	case NUBUS_DRHW_RPC8:
    267 		sc->cli_offset = 0xfdff8f;
    268 		sc->cli_value = 0xff;
    269 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    270 		break;
    271 	case NUBUS_DRHW_RPC8XJ:
    272 		sc->cli_value = 0x66;
    273 		add_nubus_intr(na->slot, grfmv_intr_radius, sc);
    274 		break;
    275 	case NUBUS_DRHW_RPC24X:
    276 	case NUBUS_DRHW_BOOGIE:
    277 		sc->cli_value = 0x64;
    278 		add_nubus_intr(na->slot, grfmv_intr_radius, sc);
    279 		break;
    280 	case NUBUS_DRHW_RPC24XP:
    281 		add_nubus_intr(na->slot, grfmv_intr_radius24, sc);
    282 		break;
    283 	case NUBUS_DRHW_RADGSC:
    284 		add_nubus_intr(na->slot, grfmv_intr_radius_gsc, sc);
    285 		break;
    286 	case NUBUS_DRHW_RDCGX:
    287 		add_nubus_intr(na->slot, grfmv_intr_radius_gx, sc);
    288 		break;
    289 	case NUBUS_DRHW_FIILX:
    290 	case NUBUS_DRHW_FIISXDSP:
    291 	case NUBUS_DRHW_FUTURASX:
    292 		sc->cli_offset = 0xf05000;
    293 		sc->cli_value = 0x80;
    294 		add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc);
    295 		break;
    296 	case NUBUS_DRHW_SAM768:
    297 		add_nubus_intr(na->slot, grfmv_intr_cti, sc);
    298 		break;
    299 	case NUBUS_DRHW_SUPRGFX:
    300 		add_nubus_intr(na->slot, grfmv_intr_supermacgfx, sc);
    301 		break;
    302 	case NUBUS_DRHW_SPECTRM8:
    303 		sc->cli_offset = 0x0de178;
    304 		sc->cli_value = 0x80;
    305 		add_nubus_intr(na->slot, grfmv_intr_generic_or4, sc);
    306 		break;
    307 	case NUBUS_DRHW_LAPIS:
    308 		add_nubus_intr(na->slot, grfmv_intr_lapis, sc);
    309 		break;
    310 	case NUBUS_DRHW_RELAX200:
    311 		add_nubus_intr(na->slot, grfmv_intr_relax_200, sc);
    312 		break;
    313 	case NUBUS_DRHW_BAER:
    314 	case NUBUS_DRHW_FORMAC:
    315 		add_nubus_intr(na->slot, grfmv_intr_formac, sc);
    316 		break;
    317 	case NUBUS_DRHW_ROPS24LXI:
    318 	case NUBUS_DRHW_ROPS24XLTV:
    319 	case NUBUS_DRHW_ROPS24MXTV:
    320 		sc->cli_offset = 0xfb0010;
    321 		sc->cli_value = 0x00;
    322 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    323 		break;
    324 	case NUBUS_DRHW_ROPSPPGT:
    325 		sc->cli_offset = 0xf50010;
    326 		sc->cli_value = 0x02;
    327 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    328 		break;
    329 	case NUBUS_DRHW_VIMAGE:
    330 		add_nubus_intr(na->slot, grfmv_intr_vimage, sc);
    331 		break;
    332 	case NUBUS_DRHW_GVIMAGE:
    333 		add_nubus_intr(na->slot, grfmv_intr_gvimage, sc);
    334 		break;
    335 	case NUBUS_DRHW_MC2124NB:
    336 		sc->cli_offset = 0xfd1000;
    337 		sc->cli_value = 0x00;
    338 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    339 		break;
    340 	case NUBUS_DRHW_MICRON:
    341 		sc->cli_offset = 0xa00014;
    342 		sc->cli_value = 0;
    343 		add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc);
    344 		break;
    345 	case NUBUS_DRHW_MVC:
    346 		add_nubus_intr(na->slot, grfmv_intr_mvc, sc);
    347 		break;
    348 	case NUBUS_DRHW_VILTRO340:
    349 		add_nubus_intr(na->slot, grfmv_intr_viltro_340, sc);
    350 		break;
    351 	default:
    352 		printf("%s: Unknown video card ID 0x%x --",
    353 		    device_xname(self), sc->card_id);
    354 		printf(" Not installing interrupt routine.\n");
    355 		break;
    356 	}
    357 
    358 	/* Perform common video attachment. */
    359 	grf_establish(sc, &sc->sc_slot, grfmv_mode);
    360 }
    361 
    362 static int
    363 grfmv_mode(struct grf_softc *gp, int cmd, void *arg)
    364 {
    365 	switch (cmd) {
    366 	case GM_GRFON:
    367 	case GM_GRFOFF:
    368 		return 0;
    369 	case GM_CURRMODE:
    370 		break;
    371 	case GM_NEWMODE:
    372 		break;
    373 	case GM_LISTMODES:
    374 		break;
    375 	}
    376 	return EINVAL;
    377 }
    378 
    379 /* Interrupt handlers... */
    380 /*
    381  * Generic routine to clear interrupts for cards where it simply takes
    382  * a MOV.B to clear the interrupt.  The offset and value of this byte
    383  * varies between cards.
    384  */
    385 /*ARGSUSED*/
    386 static void
    387 grfmv_intr_generic_write1(void *vsc)
    388 {
    389 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    390 
    391 	bus_space_write_1(sc->sc_tag, sc->sc_handle,
    392 	    sc->cli_offset, (u_int8_t)sc->cli_value);
    393 }
    394 
    395 /*
    396  * Generic routine to clear interrupts for cards where it simply takes
    397  * a MOV.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_write4(void *vsc)
    403 {
    404 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    405 
    406 	bus_space_write_4(sc->sc_tag, sc->sc_handle,
    407 	    sc->cli_offset, sc->cli_value);
    408 }
    409 
    410 /*
    411  * Generic routine to clear interrupts for cards where it simply takes
    412  * an OR.L to clear the interrupt.  The offset and value of this byte
    413  * varies between cards.
    414  */
    415 /*ARGSUSED*/
    416 static void
    417 grfmv_intr_generic_or4(void *vsc)
    418 {
    419 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    420 	unsigned long	scratch;
    421 
    422 	scratch = bus_space_read_4(sc->sc_tag, sc->sc_handle, sc->cli_offset);
    423 	scratch |= 0x80;
    424 	bus_space_write_4(sc->sc_tag, sc->sc_handle, sc->cli_offset, scratch);
    425 }
    426 
    427 /*
    428  * Routine to clear interrupts for the Radius PrecisionColor 8xj card.
    429  */
    430 /*ARGSUSED*/
    431 static void
    432 grfmv_intr_radius(void *vsc)
    433 {
    434 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    435 	u_int8_t c;
    436 
    437 	c = sc->cli_value;
    438 
    439 	c |= 0x80;
    440 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    441 	c &= 0x7f;
    442 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    443 }
    444 
    445 /*
    446  * Routine to clear interrupts for the Radius PrecisionColor 24Xp card.
    447  * Is this what the 8xj routine is doing, too?
    448  */
    449 /*ARGSUSED*/
    450 static void
    451 grfmv_intr_radius24(void *vsc)
    452 {
    453 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    454 	u_int8_t c;
    455 
    456 	c = 0x80 | bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfffd8);
    457 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    458 	c &= 0x7f;
    459 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c);
    460 }
    461 
    462 /*
    463  * Routine to clear interrupts on Samsung 768x1006 video controller.
    464  * This controller was manufactured by Cornerstone Technology, Inc.,
    465  * now known as Cornerstone Imaging.
    466  *
    467  * To clear this interrupt, we apparently have to set, then clear,
    468  * bit 2 at byte offset 0x80000 from the card's base.
    469  *	Information for this provided by Brad Salai <bsalai (at) servtech.com>
    470  */
    471 /*ARGSUSED*/
    472 static void
    473 grfmv_intr_cti(void *vsc)
    474 {
    475 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    476 	u_int8_t c;
    477 
    478 	c = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x80000);
    479 	c |= 0x02;
    480 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c);
    481 	c &= 0xfd;
    482 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c);
    483 }
    484 
    485 /*ARGSUSED*/
    486 static void
    487 grfmv_intr_cb264(void *vsc)
    488 {
    489 	struct grfbus_softc *sc;
    490 	volatile char *slotbase;
    491 
    492 	sc = (struct grfbus_softc *)vsc;
    493 	slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */
    494 	__asm volatile(
    495 		"	movl	%0,%%a0				\n"
    496 		"	movl	%%a0@(0xff6028),%%d0		\n"
    497 		"	andl	#0x2,%%d0			\n"
    498 		"	beq	_mv_intr0			\n"
    499 		"	movql	#0x3,%%d0			\n"
    500 		"_mv_intr0:					\n"
    501 		"	movl	%%a0@(0xff600c),%%d1		\n"
    502 		"	andl	#0x3,%%d1			\n"
    503 		"	cmpl	%%d1,%%d0			\n"
    504 		"	beq	_mv_intr_fin			\n"
    505 		"	movl	%%d0,%%a0@(0xff600c)		\n"
    506 		"	nop					\n"
    507 		"	tstb	%%d0				\n"
    508 		"	beq	_mv_intr1			\n"
    509 		"	movl	#0x0002,%%a0@(0xff6040)		\n"
    510 		"	movl	#0x0102,%%a0@(0xff6044)		\n"
    511 		"	movl	#0x0105,%%a0@(0xff6048)		\n"
    512 		"	movl	#0x000e,%%a0@(0xff604c)		\n"
    513 		"	movl	#0x001c,%%a0@(0xff6050)		\n"
    514 		"	movl	#0x00bc,%%a0@(0xff6054)		\n"
    515 		"	movl	#0x00c3,%%a0@(0xff6058)		\n"
    516 		"	movl	#0x0061,%%a0@(0xff605c)		\n"
    517 		"	movl	#0x0012,%%a0@(0xff6060)		\n"
    518 		"	bra	_mv_intr_fin			\n"
    519 		"_mv_intr1:					\n"
    520 		"	movl	#0x0002,%%a0@(0xff6040)		\n"
    521 		"	movl	#0x0209,%%a0@(0xff6044)		\n"
    522 		"	movl	#0x020c,%%a0@(0xff6048)		\n"
    523 		"	movl	#0x000f,%%a0@(0xff604c)		\n"
    524 		"	movl	#0x0027,%%a0@(0xff6050)		\n"
    525 		"	movl	#0x00c7,%%a0@(0xff6054)		\n"
    526 		"	movl	#0x00d7,%%a0@(0xff6058)		\n"
    527 		"	movl	#0x006b,%%a0@(0xff605c)		\n"
    528 		"	movl	#0x0029,%%a0@(0xff6060)		\n"
    529 		"_mv_intr_fin:					\n"
    530 		"	movl	#0x1,%%a0@(0xff6014)"
    531 		: : "g" (slotbase) : "a0","d0","d1");
    532 }
    533 
    534 /*
    535  * Support for the Colorboard 364 might be more complex than it needs to
    536  * be.  If we can find more information about this card, this might be
    537  * significantly simplified.  Contributions welcome...  :-)
    538  */
    539 /*ARGSUSED*/
    540 static void
    541 grfmv_intr_cb364(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(void *vsc)
    630 {
    631 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    632 
    633 	bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xE70D3);
    634 }
    635 
    636 /*
    637  * Routine to clear interrupts for the Sigma Designs ColorMax card.
    638  */
    639 /*ARGSUSED*/
    640 static void
    641 grfmv_intr_cmax(void *vsc)
    642 {
    643 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    644 
    645 	bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf501c);
    646 	bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf5018);
    647 }
    648 
    649 /*
    650  * Routine to clear interrupts for the Lapis ProColorServer 8 PDS card
    651  * (for the SE/30).
    652  */
    653 /*ARGSUSED*/
    654 static void
    655 grfmv_intr_lapis(void *vsc)
    656 {
    657 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    658 
    659 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x08);
    660 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x0C);
    661 }
    662 
    663 /*
    664  * Routine to clear interrupts for the Formac ProNitron 80.IVb
    665  * and Color Card II
    666  */
    667 /*ARGSUSED*/
    668 static void
    669 grfmv_intr_formac(void *vsc)
    670 {
    671 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    672 
    673 	bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80db);
    674 	bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80d3);
    675 }
    676 
    677 /*
    678  * Routine to clear interrupts for the Vimage by Interware Co., Ltd.
    679  */
    680 /*ARGSUSED*/
    681 static void
    682 grfmv_intr_vimage(void *vsc)
    683 {
    684 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    685 
    686 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0x67);
    687 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0xE7);
    688 }
    689 
    690 /*
    691  * Routine to clear interrupts for the Grand Vimage by Interware Co., Ltd.
    692  */
    693 /*ARGSUSED*/
    694 static void
    695 grfmv_intr_gvimage(void *vsc)
    696 {
    697 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    698 
    699 	bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xf00000);
    700 }
    701 
    702 /*
    703  * Routine to clear interrupts for the Radius GS/C
    704  */
    705 /*ARGSUSED*/
    706 static void
    707 grfmv_intr_radius_gsc(void *vsc)
    708 {
    709 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    710 
    711 	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 /*
    716  * Routine to clear interrupts for the Radius GS/C
    717  */
    718 /*ARGSUSED*/
    719 static void
    720 grfmv_intr_radius_gx(void *vsc)
    721 {
    722 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    723 
    724 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x600000, 0x00);
    725 	bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x600000, 0x20);
    726 }
    727 
    728 /*
    729  * Routine to clear interrupts for the Relax 19" model 200.
    730  */
    731 /*ARGSUSED*/
    732 static void
    733 grfmv_intr_relax_200(void *vsc)
    734 {
    735 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    736 
    737 	/* The board ROM driver code has a tst.l here. */
    738 	bus_space_read_4(sc->sc_tag, sc->sc_handle, 0x000D0040);
    739 }
    740 
    741 /*
    742  * Routine to clear interrupts for the Apple Mac II Monochrome Video Card.
    743  */
    744 /*ARGSUSED*/
    745 static void
    746 grfmv_intr_mvc(void *vsc)
    747 {
    748 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    749 
    750 	bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x00040000, 0);
    751 	bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x00020000, 0);
    752 }
    753 
    754 /*
    755  * Routine to clear interrupts for the VillageTronic Mac Picasso 340.
    756  */
    757 /*ARGSUSED*/
    758 static void
    759 grfmv_intr_viltro_340(void *vsc)
    760 {
    761 	struct grfbus_softc *sc = (struct grfbus_softc *)vsc;
    762 
    763 	/* Yes, two read accesses to the same spot. */
    764 	bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x0500);
    765 	bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x0500);
    766 }
    767