grf_nubus.c revision 1.31
1 /* $NetBSD: grf_nubus.c,v 1.31 1997/08/11 22:53:31 scottr 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. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Allen Briggs. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /* 32 * Device-specific routines for handling Nubus-based video cards. 33 */ 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/dev/nubus.h> 51 #include <mac68k/dev/grfvar.h> 52 53 static void load_image_data __P((caddr_t data, struct image_data *image)); 54 55 static void grfmv_intr_generic_1 __P((void *vsc, int slot)); 56 static void grfmv_intr_generic_4 __P((void *vsc, int slot)); 57 static void grfmv_intr_radius __P((void *vsc, int slot)); 58 static void grfmv_intr_cti __P((void *vsc, int slot)); 59 static void grfmv_intr_cb264 __P((void *vsc, int slot)); 60 static void grfmv_intr_cb364 __P((void *vsc, int slot)); 61 62 static int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg)); 63 static caddr_t grfmv_phys __P((struct grf_softc *gp)); 64 static int grfmv_match __P((struct device *, struct cfdata *, void *)); 65 static void grfmv_attach __P((struct device *, struct device *, void *)); 66 67 struct cfdriver macvid_cd = { 68 NULL, "macvid", DV_DULL 69 }; 70 71 struct cfattach macvid_ca = { 72 sizeof(struct grfbus_softc), grfmv_match, grfmv_attach 73 }; 74 75 static void 76 load_image_data(data, image) 77 caddr_t data; 78 struct image_data *image; 79 { 80 bcopy(data , &image->size, 4); 81 bcopy(data + 4, &image->offset, 4); 82 bcopy(data + 8, &image->rowbytes, 2); 83 bcopy(data + 10, &image->top, 2); 84 bcopy(data + 12, &image->left, 2); 85 bcopy(data + 14, &image->bottom, 2); 86 bcopy(data + 16, &image->right, 2); 87 bcopy(data + 18, &image->version, 2); 88 bcopy(data + 20, &image->packType, 2); 89 bcopy(data + 22, &image->packSize, 4); 90 bcopy(data + 26, &image->hRes, 4); 91 bcopy(data + 30, &image->vRes, 4); 92 bcopy(data + 34, &image->pixelType, 2); 93 bcopy(data + 36, &image->pixelSize, 2); 94 bcopy(data + 38, &image->cmpCount, 2); 95 bcopy(data + 40, &image->cmpSize, 2); 96 bcopy(data + 42, &image->planeBytes, 4); 97 } 98 99 100 static int 101 grfmv_match(parent, cf, aux) 102 struct device *parent; 103 struct cfdata *cf; 104 void *aux; 105 { 106 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 107 108 if (na->category != NUBUS_CATEGORY_DISPLAY) 109 return 0; 110 111 if (na->type != NUBUS_TYPE_VIDEO) 112 return 0; 113 114 if (na->drsw != NUBUS_DRSW_APPLE) 115 return 0; 116 117 /* 118 * If we've gotten this far, then we're dealing with a real-live 119 * Apple QuickDraw-compatible display card resource. Now, how to 120 * determine that this is an active resource??? Dunno. But we'll 121 * proceed like it is. 122 */ 123 124 return 1; 125 } 126 127 static void 128 grfmv_attach(parent, self, aux) 129 struct device *parent, *self; 130 void *aux; 131 { 132 struct grfbus_softc *sc = (struct grfbus_softc *)self; 133 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 134 struct image_data image_store, image; 135 struct grfmode *gm; 136 char cardname[CARD_NAME_LEN]; 137 nubus_dirent dirent; 138 nubus_dir dir, mode_dir; 139 int mode; 140 141 sc->sc_tag = na->na_tag; 142 sc->card_id = na->drhw; 143 144 bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot)); 145 146 if (bus_space_map(sc->sc_tag, 147 NUBUS_SLOT2PA(na->slot), NBMEMSIZE, 0, &sc->sc_handle)) { 148 printf(": grfmv_attach: failed to map slot %d\n", na->slot); 149 return; 150 } 151 152 nubus_get_main_dir(&sc->sc_slot, &dir); 153 154 if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, 155 &sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) { 156 bad: 157 bus_space_unmap(sc->sc_tag, sc->sc_handle, NBMEMSIZE); 158 return; 159 } 160 161 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir); 162 163 if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, 164 &sc->sc_slot, &sc->board_dir, NUBUS_RSRC_TYPE, &dirent) <= 0) 165 if ((na->rsrcid != 128) || 166 (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, 167 &sc->sc_slot, &dir, 129, &dirent) <= 0)) 168 goto bad; 169 170 mode = NUBUS_RSRC_FIRSTMODE; 171 if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, 172 &sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) { 173 printf(": probe failed to get board rsrc.\n"); 174 goto bad; 175 } 176 177 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir); 178 179 if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, 180 &sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) <= 0) { 181 printf(": probe failed to get mode dir.\n"); 182 goto bad; 183 } 184 185 if (nubus_get_ind_data(sc->sc_tag, sc->sc_handle, &sc->sc_slot, 186 &dirent, (caddr_t)&image_store, sizeof(struct image_data)) <= 0) { 187 printf(": probe failed to get indirect mode data.\n"); 188 goto bad; 189 } 190 191 /* Need to load display info (and driver?), etc... (?) */ 192 193 load_image_data((caddr_t)&image_store, &image); 194 195 gm = &sc->curr_mode; 196 gm->mode_id = mode; 197 gm->fbbase = (caddr_t)sc->sc_handle; /* XXX evil! */ 198 gm->fboff = image.offset; 199 gm->rowbytes = image.rowbytes; 200 gm->width = image.right - image.left; 201 gm->height = image.bottom - image.top; 202 gm->fbsize = gm->height * gm->rowbytes; 203 gm->hres = image.hRes; 204 gm->vres = image.vRes; 205 gm->ptype = image.pixelType; 206 gm->psize = image.pixelSize; 207 208 strncpy(cardname, nubus_get_card_name(sc->sc_tag, sc->sc_handle, 209 &sc->sc_slot), CARD_NAME_LEN); 210 cardname[CARD_NAME_LEN-1] = '\0'; 211 printf(": %s\n", cardname); 212 213 if (sc->card_id == NUBUS_DRHW_TFB) { 214 /* 215 * This is the Toby card, but apparently some manufacturers 216 * (like Cornerstone) didn't bother to get/use their own 217 * value here, even though the cards are different, so we 218 * so we try to differentiate here. 219 */ 220 if (strncmp(cardname, "Samsung 768", 11) == 0) 221 sc->card_id = NUBUS_DRHW_SAM768; 222 else if (strncmp(cardname, "Toby frame", 10) != 0) 223 printf("%s: This display card pretends to be a TFB!\n", 224 sc->sc_dev.dv_xname); 225 } 226 227 switch (sc->card_id) { 228 case NUBUS_DRHW_TFB: 229 case NUBUS_DRHW_M2HRVC: 230 case NUBUS_DRHW_PVC: 231 sc->cli_offset = 0xa0000; 232 sc->cli_value = 0; 233 add_nubus_intr(na->slot, grfmv_intr_generic_1, sc); 234 break; 235 case NUBUS_DRHW_WVC: 236 sc->cli_offset = 0xa00000; 237 sc->cli_value = 0; 238 add_nubus_intr(na->slot, grfmv_intr_generic_1, sc); 239 break; 240 case NUBUS_DRHW_SE30: 241 /* Do nothing--SE/30 interrupts are disabled */ 242 break; 243 case NUBUS_DRHW_MDC: 244 sc->cli_offset = 0x200148; 245 sc->cli_value = 1; 246 add_nubus_intr(na->slot, grfmv_intr_generic_4, sc); 247 248 /* Enable interrupts; to disable, write 0x7 to this location */ 249 bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x20013C, 5); 250 break; 251 case NUBUS_DRHW_CB264: 252 add_nubus_intr(na->slot, grfmv_intr_cb264, sc); 253 break; 254 case NUBUS_DRHW_CB364: 255 add_nubus_intr(na->slot, grfmv_intr_cb364, sc); 256 break; 257 case NUBUS_DRHW_RPC8XJ: 258 add_nubus_intr(na->slot, grfmv_intr_radius, sc); 259 break; 260 case NUBUS_DRHW_FIILX: 261 case NUBUS_DRHW_FIISXDSP: 262 sc->cli_offset = 0xf05000; 263 sc->cli_value = 0x80; 264 add_nubus_intr(na->slot, grfmv_intr_generic_1, sc); 265 break; 266 case NUBUS_DRHW_SAM768: 267 add_nubus_intr(na->slot, grfmv_intr_cti, sc); 268 break; 269 case NUBUS_DRHW_MICRON: 270 /* What do we know about this one? */ 271 default: 272 printf("%s: Unknown video card ID 0x%x --", 273 sc->sc_dev.dv_xname, sc->card_id); 274 printf(" Not installing interrupt routine.\n"); 275 break; 276 } 277 278 /* Perform common video attachment. */ 279 grf_establish(sc, &sc->sc_slot, grfmv_mode, grfmv_phys); 280 } 281 282 static int 283 grfmv_mode(gp, cmd, arg) 284 struct grf_softc *gp; 285 int cmd; 286 void *arg; 287 { 288 switch (cmd) { 289 case GM_GRFON: 290 case GM_GRFOFF: 291 return 0; 292 case GM_CURRMODE: 293 break; 294 case GM_NEWMODE: 295 break; 296 case GM_LISTMODES: 297 break; 298 } 299 return EINVAL; 300 } 301 302 static caddr_t 303 grfmv_phys(gp) 304 struct grf_softc *gp; 305 { 306 return (caddr_t)NUBUS_SLOT2PA(gp->sc_slot->slot); 307 } 308 309 /* Interrupt handlers... */ 310 /* 311 * Generic routine to clear interrupts for cards where it simply takes 312 * a MOV.B to clear the interrupt. The offset and value of this byte 313 * varies between cards. 314 */ 315 /*ARGSUSED*/ 316 static void 317 grfmv_intr_generic_1(vsc, slot) 318 void *vsc; 319 int slot; 320 { 321 struct grfbus_softc *sc = (struct grfbus_softc *)vsc; 322 323 bus_space_write_1(sc->sc_tag, sc->sc_handle, 324 sc->cli_offset, (u_int8_t)sc->cli_value); 325 } 326 327 /* 328 * Generic routine to clear interrupts for cards where it simply takes 329 * a MOV.L to clear the interrupt. The offset and value of this byte 330 * varies between cards. 331 */ 332 /*ARGSUSED*/ 333 static void 334 grfmv_intr_generic_4(vsc, slot) 335 void *vsc; 336 int slot; 337 { 338 struct grfbus_softc *sc = (struct grfbus_softc *)vsc; 339 340 bus_space_write_4(sc->sc_tag, sc->sc_handle, 341 sc->cli_offset, sc->cli_value); 342 } 343 344 /* 345 * Routine to clear interrupts for the Radius PrecisionColor 8xj card. 346 */ 347 /*ARGSUSED*/ 348 static void 349 grfmv_intr_radius(vsc, slot) 350 void *vsc; 351 int slot; 352 { 353 struct grfbus_softc *sc = (struct grfbus_softc *)vsc; 354 u_int8_t c; 355 356 /* 357 * The value 0x66 was the observed value on one card. It is read 358 * from the driver's information block, so this may not be sufficient. 359 * Then again, we're not setting up any other interrupts... 360 */ 361 c = 0x66; 362 363 c |= 0x80; 364 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c); 365 c &= 0x7f; 366 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c); 367 } 368 369 /* 370 * Routine to clear interrupts on Samsung 768x1006 video controller. 371 * This controller was manufactured by Cornerstone Technology, Inc., 372 * now known as Cornerstone Imaging. 373 * 374 * To clear this interrupt, we apparently have to set, then clear, 375 * bit 2 at byte offset 0x80000 from the card's base. 376 * Information for this provided by Brad Salai <bsalai (at) servtech.com> 377 */ 378 /*ARGSUSED*/ 379 static void 380 grfmv_intr_cti(vsc, slot) 381 void *vsc; 382 int slot; 383 { 384 struct grfbus_softc *sc = (struct grfbus_softc *)vsc; 385 u_int8_t c; 386 387 c = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x80000); 388 c |= 0x02; 389 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c); 390 c &= 0xfd; 391 bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c); 392 } 393 394 /*ARGSUSED*/ 395 static void 396 grfmv_intr_cb264(vsc, slot) 397 void *vsc; 398 int slot; 399 { 400 struct grfbus_softc *sc; 401 volatile char *slotbase; 402 403 sc = (struct grfbus_softc *)vsc; 404 slotbase = (volatile char *)sc->sc_handle; /* XXX evil hack */ 405 asm volatile(" movl %0,a0 406 movl a0@(0xff6028),d0 407 andl #0x2,d0 408 beq _mv_intr0 409 movql #0x3,d0 410 _mv_intr0: 411 movl a0@(0xff600c),d1 412 andl #0x3,d1 413 cmpl d1,d0 414 beq _mv_intr_fin 415 movl d0,a0@(0xff600c) 416 nop 417 tstb d0 418 beq _mv_intr1 419 movl #0x0002,a0@(0xff6040) 420 movl #0x0102,a0@(0xff6044) 421 movl #0x0105,a0@(0xff6048) 422 movl #0x000e,a0@(0xff604c) 423 movl #0x001c,a0@(0xff6050) 424 movl #0x00bc,a0@(0xff6054) 425 movl #0x00c3,a0@(0xff6058) 426 movl #0x0061,a0@(0xff605c) 427 movl #0x0012,a0@(0xff6060) 428 bra _mv_intr_fin 429 _mv_intr1: 430 movl #0x0002,a0@(0xff6040) 431 movl #0x0209,a0@(0xff6044) 432 movl #0x020c,a0@(0xff6048) 433 movl #0x000f,a0@(0xff604c) 434 movl #0x0027,a0@(0xff6050) 435 movl #0x00c7,a0@(0xff6054) 436 movl #0x00d7,a0@(0xff6058) 437 movl #0x006b,a0@(0xff605c) 438 movl #0x0029,a0@(0xff6060) 439 _mv_intr_fin: 440 movl #0x1,a0@(0xff6014)" 441 : : "g" (slotbase) : "a0","d0","d1"); 442 } 443 444 /* 445 * Support for the Colorboard 364 might be more complex than it needs to 446 * be. If we can find more information about this card, this might be 447 * significantly simplified. Contributions welcome... :-) 448 */ 449 /*ARGSUSED*/ 450 static void 451 grfmv_intr_cb364(vsc, slot) 452 void *vsc; 453 int slot; 454 { 455 struct grfbus_softc *sc; 456 volatile char *slotbase; 457 458 sc = (struct grfbus_softc *)vsc; 459 slotbase = (volatile char *)sc->sc_handle; /* XXX evil hack */ 460 asm volatile(" movl %0,a0 461 movl a0@(0xfe6028),d0 462 andl #0x2,d0 463 beq _cb364_intr4 464 movql #0x3,d0 465 movl a0@(0xfe6018),d1 466 movl #0x3,a0@(0xfe6018) 467 movw a0@(0xfe7010),d2 468 movl d1,a0@(0xfe6018) 469 movl a0@(0xfe6020),d1 470 btst #0x06,d2 471 beq _cb364_intr0 472 btst #0x00,d1 473 beq _cb364_intr5 474 bsr _cb364_intr1 475 bra _cb364_intr_out 476 _cb364_intr0: 477 btst #0x00,d1 478 bne _cb364_intr5 479 bsr _cb364_intr1 480 bra _cb364_intr_out 481 _cb364_intr1: 482 movl d0,a0@(0xfe600c) 483 nop 484 tstb d0 485 beq _cb364_intr3 486 movl #0x0002,a0@(0xfe6040) 487 movl #0x0105,a0@(0xfe6048) 488 movl #0x000e,a0@(0xfe604c) 489 movl #0x00c3,a0@(0xfe6058) 490 movl #0x0061,a0@(0xfe605c) 491 btst #0x06,d2 492 beq _cb364_intr2 493 movl #0x001c,a0@(0xfe6050) 494 movl #0x00bc,a0@(0xfe6054) 495 movl #0x0012,a0@(0xfe6060) 496 movl #0x000e,a0@(0xfe6044) 497 movl #0x00c3,a0@(0xfe6064) 498 movl #0x0061,a0@(0xfe6020) 499 rts 500 _cb364_intr2: 501 movl #0x0016,a0@(0xfe6050) 502 movl #0x00b6,a0@(0xfe6054) 503 movl #0x0011,a0@(0xfe6060) 504 movl #0x0101,a0@(0xfe6044) 505 movl #0x00bf,a0@(0xfe6064) 506 movl #0x0001,a0@(0xfe6020) 507 rts 508 _cb364_intr3: 509 movl #0x0002,a0@(0xfe6040) 510 movl #0x0209,a0@(0xfe6044) 511 movl #0x020c,a0@(0xfe6048) 512 movl #0x000f,a0@(0xfe604c) 513 movl #0x0027,a0@(0xfe6050) 514 movl #0x00c7,a0@(0xfe6054) 515 movl #0x00d7,a0@(0xfe6058) 516 movl #0x006b,a0@(0xfe605c) 517 movl #0x0029,a0@(0xfe6060) 518 oril #0x0040,a0@(0xfe6064) 519 movl #0x0000,a0@(0xfe6020) 520 rts 521 _cb364_intr4: 522 movq #0x00,d0 523 _cb364_intr5: 524 movl a0@(0xfe600c),d1 525 andl #0x3,d1 526 cmpl d1,d0 527 beq _cb364_intr_out 528 bsr _cb364_intr1 529 _cb364_intr_out: 530 movl #0x1,a0@(0xfe6014) 531 _cb364_intr_quit: 532 " : : "g" (slotbase) : "a0","d0","d1","d2"); 533 } 534
Indexes created Tue Sep 30 20:09:53 GMT 2025