grf_nubus.c revision 1.24
1 /* $NetBSD: grf_nubus.c,v 1.24 1997/05/03 02:29:54 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. 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 "nubus.h" 51 #include "grfvar.h" 52 53 static void load_image_data __P((caddr_t data, struct image_data *image)); 54 55 static void grfmv_intr_generic __P((void *vsc, int slot)); 56 static void grfmv_intr_radius __P((void *vsc, int slot)); 57 static void grfmv_intr_cti __P((void *vsc, int slot)); 58 static void grfmv_intr_cb264 __P((void *vsc, int slot)); 59 static void grfmv_intr_cb364 __P((void *vsc, int slot)); 60 61 static int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg)); 62 static caddr_t grfmv_phys __P((struct grf_softc *gp, vm_offset_t addr)); 63 static int grfmv_match __P((struct device *, struct cfdata *, void *)); 64 static void grfmv_attach __P((struct device *, struct device *, void *)); 65 66 struct cfdriver macvid_cd = { 67 NULL, "macvid", DV_DULL 68 }; 69 70 struct cfattach macvid_ca = { 71 sizeof(struct grfbus_softc), grfmv_match, grfmv_attach 72 }; 73 74 static void 75 load_image_data(data, image) 76 caddr_t data; 77 struct image_data *image; 78 { 79 bcopy(data , &image->size, 4); 80 bcopy(data + 4, &image->offset, 4); 81 bcopy(data + 8, &image->rowbytes, 2); 82 bcopy(data + 10, &image->top, 2); 83 bcopy(data + 12, &image->left, 2); 84 bcopy(data + 14, &image->bottom, 2); 85 bcopy(data + 16, &image->right, 2); 86 bcopy(data + 18, &image->version, 2); 87 bcopy(data + 20, &image->packType, 2); 88 bcopy(data + 22, &image->packSize, 4); 89 bcopy(data + 26, &image->hRes, 4); 90 bcopy(data + 30, &image->vRes, 4); 91 bcopy(data + 34, &image->pixelType, 2); 92 bcopy(data + 36, &image->pixelSize, 2); 93 bcopy(data + 38, &image->cmpCount, 2); 94 bcopy(data + 40, &image->cmpSize, 2); 95 bcopy(data + 42, &image->planeBytes, 4); 96 } 97 98 99 static int 100 grfmv_match(parent, cf, aux) 101 struct device *parent; 102 struct cfdata *cf; 103 void *aux; 104 { 105 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 106 107 if (na->category != NUBUS_CATEGORY_DISPLAY) 108 return 0; 109 110 if (na->type != NUBUS_TYPE_VIDEO) 111 return 0; 112 113 if (na->drsw != NUBUS_DRSW_APPLE) 114 return 0; 115 116 /* 117 * If we've gotten this far, then we're dealing with a real-live 118 * Apple QuickDraw-compatible display card resource. Now, how to 119 * determine that this is an active resource??? Dunno. But we'll 120 * proceed like it is. 121 */ 122 123 return 1; 124 } 125 126 static void 127 grfmv_attach(parent, self, aux) 128 struct device *parent, *self; 129 void *aux; 130 { 131 struct grfbus_softc *sc = (struct grfbus_softc *)self; 132 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 133 struct image_data image_store, image; 134 struct grfmode *gm; 135 char cardname[CARD_NAME_LEN]; 136 nubus_dirent dirent; 137 nubus_dir dir, mode_dir; 138 int mode; 139 140 sc->card_id = na->drhw; 141 142 bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot)); 143 144 nubus_get_main_dir(&sc->sc_slot, &dir); 145 146 if (nubus_find_rsrc(&sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) 147 return; 148 149 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir); 150 151 if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, 152 NUBUS_RSRC_TYPE, &dirent) <= 0) 153 if ((na->rsrcid != 128) || 154 (nubus_find_rsrc(&sc->sc_slot, &dir, 129, &dirent) <= 0)) 155 return; 156 157 mode = NUBUS_RSRC_FIRSTMODE; 158 if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) { 159 printf("\n%s: probe failed to get board rsrc.\n", 160 sc->sc_dev.dv_xname); 161 return; 162 } 163 164 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir); 165 166 if (nubus_find_rsrc(&sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) 167 <= 0) { 168 printf("\n%s: probe failed to get mode dir.\n", 169 sc->sc_dev.dv_xname); 170 return; 171 } 172 173 if (nubus_get_ind_data(&sc->sc_slot, &dirent, (caddr_t)&image_store, 174 sizeof(struct image_data)) <= 0) { 175 printf("\n%s: probe failed to get indirect mode data.\n", 176 sc->sc_dev.dv_xname); 177 return; 178 } 179 180 /* Need to load display info (and driver?), etc... (?) */ 181 182 load_image_data((caddr_t)&image_store, &image); 183 184 gm = &sc->curr_mode; 185 gm->mode_id = mode; 186 gm->fbbase = (caddr_t)(sc->sc_slot.virtual_base + image.offset); 187 gm->fboff = image.offset; 188 gm->rowbytes = image.rowbytes; 189 gm->width = image.right - image.left; 190 gm->height = image.bottom - image.top; 191 gm->fbsize = sc->curr_mode.height * sc->curr_mode.rowbytes; 192 gm->hres = image.hRes; 193 gm->vres = image.vRes; 194 gm->ptype = image.pixelType; 195 gm->psize = image.pixelSize; 196 197 strncpy(cardname, nubus_get_card_name(&sc->sc_slot), 198 CARD_NAME_LEN); 199 cardname[CARD_NAME_LEN-1] = '\0'; 200 printf(": %s\n", cardname); 201 202 if (sc->card_id == NUBUS_DRHW_TFB) { 203 /* 204 * This is the Toby card, but apparently some manufacturers 205 * (like Cornerstone) didn't bother to get/use their own 206 * value here, even though the cards are different, so we 207 * so we try to differentiate here. 208 */ 209 if (strncmp(cardname, "Samsung 768", 11) == 0) 210 sc->card_id = NUBUS_DRHW_SAM768; 211 else if (strncmp(cardname, "Toby frame", 10) != 0) 212 printf("%s: This display card pretends to be a TFB!", 213 sc->sc_dev.dv_xname); 214 } 215 216 switch (sc->card_id) { 217 case NUBUS_DRHW_M2HRVC: 218 case NUBUS_DRHW_TFB: 219 sc->cli_offset = 0xa0000; 220 sc->cli_value = 0; 221 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 222 break; 223 case NUBUS_DRHW_WVC: 224 sc->cli_offset = 0xa00000; 225 sc->cli_value = 0; 226 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 227 break; 228 case NUBUS_DRHW_RPC8XJ: 229 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_radius, sc); 230 break; 231 case NUBUS_DRHW_FIILX: 232 case NUBUS_DRHW_FIISXDSP: 233 sc->cli_offset = 0xF05000; 234 sc->cli_value = 0x80; 235 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 236 break; 237 case NUBUS_DRHW_SAM768: 238 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cti, sc); 239 break; 240 case NUBUS_DRHW_CB264: 241 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cb264, sc); 242 break; 243 case NUBUS_DRHW_CB364: 244 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cb364, sc); 245 break; 246 case NUBUS_DRHW_SE30: 247 /* Do nothing--SE/30 interrupts are disabled */ 248 break; 249 case NUBUS_DRHW_MICRON: 250 /* What do we know about this one? */ 251 default: 252 printf("%s: Unknown video card ID 0x%x --", 253 sc->sc_dev.dv_xname, sc->card_id); 254 printf(" Not installing interrupt routine.\n"); 255 break; 256 } 257 258 /* Perform common video attachment. */ 259 grf_establish(sc, &sc->sc_slot, grfmv_mode, grfmv_phys); 260 } 261 262 static int 263 grfmv_mode(gp, cmd, arg) 264 struct grf_softc *gp; 265 int cmd; 266 void *arg; 267 { 268 switch (cmd) { 269 case GM_GRFON: 270 case GM_GRFOFF: 271 return 0; 272 case GM_CURRMODE: 273 break; 274 case GM_NEWMODE: 275 break; 276 case GM_LISTMODES: 277 break; 278 } 279 return EINVAL; 280 } 281 282 static caddr_t 283 grfmv_phys(gp, addr) 284 struct grf_softc *gp; 285 vm_offset_t addr; 286 { 287 return (caddr_t)(NUBUS_SLOT2PA(gp->sc_slot->slot) + 288 (addr - gp->sc_slot->virtual_base)); 289 } 290 291 /* Interrupt handlers... */ 292 /* 293 * Generic routine to clear interrupts for cards where it simply takes 294 * a CLR.B to clear the interrupt. The offset of this byte varies between 295 * cards. 296 */ 297 /*ARGSUSED*/ 298 static void 299 grfmv_intr_generic(vsc, slot) 300 void *vsc; 301 int slot; 302 { 303 static char zero = 0; 304 struct grfbus_softc *sc; 305 volatile char *slotbase; 306 307 sc = (struct grfbus_softc *)vsc; 308 slotbase = (volatile char *)sc->sc_slot.virtual_base; 309 slotbase[sc->cli_offset] = zero; 310 } 311 312 /* 313 * Generic routine to clear interrupts for cards where it simply takes 314 * a CLR.B to clear the interrupt. The offset of this byte varies between 315 * cards. 316 */ 317 /*ARGSUSED*/ 318 static void 319 grfmv_intr_radius(vsc, slot) 320 void *vsc; 321 int slot; 322 { 323 unsigned char c; 324 struct grfbus_softc *sc; 325 volatile char *slotbase; 326 327 sc = (struct grfbus_softc *)vsc; 328 slotbase = (volatile char *)sc->sc_slot.virtual_base; 329 330 /* 331 * The value 0x66 was the observed value on one card. It is read 332 * from the driver's information block, so this may not be sufficient. 333 * Then again, we're not setting up any other interrupts... 334 */ 335 c = 0x66; 336 337 c |= 0x80; 338 slotbase[0xD00403] = c; 339 c &= 0x7F; 340 slotbase[0xD00403] = c; 341 } 342 343 /* 344 * Routine to clear interrupts on Samsung 768x1006 video controller. 345 * This controller was manufactured by Cornerstone Technology, Inc., 346 * now known as Cornerstone Imaging. 347 * 348 * To clear this interrupt, we apparently have to set, then clear, 349 * bit 2 at byte offset 0x80000 from the card's base. 350 * Information for this provided by Brad Salai <bsalai (at) servtech.com> 351 */ 352 /*ARGSUSED*/ 353 static void 354 grfmv_intr_cti(vsc, slot) 355 void *vsc; 356 int slot; 357 { 358 struct grfbus_softc *sc; 359 volatile char *slotbase; 360 361 sc = (struct grfbus_softc *)vsc; 362 slotbase = ((volatile char *)sc->sc_slot.virtual_base) + 0x00080000; 363 *slotbase = (*slotbase | 0x02); 364 *slotbase = (*slotbase & 0xFD); 365 } 366 367 /*ARGSUSED*/ 368 static void 369 grfmv_intr_cb264(vsc, slot) 370 void *vsc; 371 int slot; 372 { 373 struct grfbus_softc *sc; 374 volatile char *slotbase; 375 376 sc = (struct grfbus_softc *)vsc; 377 slotbase = (volatile char *)sc->sc_slot.virtual_base; 378 asm volatile(" movl %0,a0 379 movl a0@(0xff6028),d0 380 andl #0x2,d0 381 beq _mv_intr0 382 movql #0x3,d0 383 _mv_intr0: 384 movl a0@(0xff600c),d1 385 andl #0x3,d1 386 cmpl d1,d0 387 beq _mv_intr_fin 388 movl d0,a0@(0xff600c) 389 nop 390 tstb d0 391 beq _mv_intr1 392 movl #0x0002,a0@(0xff6040) 393 movl #0x0102,a0@(0xff6044) 394 movl #0x0105,a0@(0xff6048) 395 movl #0x000e,a0@(0xff604c) 396 movl #0x001c,a0@(0xff6050) 397 movl #0x00bc,a0@(0xff6054) 398 movl #0x00c3,a0@(0xff6058) 399 movl #0x0061,a0@(0xff605c) 400 movl #0x0012,a0@(0xff6060) 401 bra _mv_intr_fin 402 _mv_intr1: 403 movl #0x0002,a0@(0xff6040) 404 movl #0x0209,a0@(0xff6044) 405 movl #0x020c,a0@(0xff6048) 406 movl #0x000f,a0@(0xff604c) 407 movl #0x0027,a0@(0xff6050) 408 movl #0x00c7,a0@(0xff6054) 409 movl #0x00d7,a0@(0xff6058) 410 movl #0x006b,a0@(0xff605c) 411 movl #0x0029,a0@(0xff6060) 412 _mv_intr_fin: 413 movl #0x1,a0@(0xff6014)" 414 : : "g" (slotbase) : "a0","d0","d1"); 415 } 416 417 /* 418 * Support for the Colorboard 364 might be more complex than it needs to 419 * be. If we can find more information about this card, this might be 420 * significantly simplified. Contributions welcome... :-) 421 */ 422 /*ARGSUSED*/ 423 static void 424 grfmv_intr_cb364(vsc, slot) 425 void *vsc; 426 int slot; 427 { 428 struct grfbus_softc *sc; 429 volatile char *slotbase; 430 431 sc = (struct grfbus_softc *)vsc; 432 slotbase = (volatile char *)sc->sc_slot.virtual_base; 433 asm volatile(" movl %0,a0 434 movl a0@(0xfe6028),d0 435 andl #0x2,d0 436 beq _cb364_intr4 437 movql #0x3,d0 438 movl a0@(0xfe6018),d1 439 movl #0x3,a0@(0xfe6018) 440 movw a0@(0xfe7010),d2 441 movl d1,a0@(0xfe6018) 442 movl a0@(0xfe6020),d1 443 btst #0x06,d2 444 beq _cb364_intr0 445 btst #0x00,d1 446 beq _cb364_intr5 447 bsr _cb364_intr1 448 bra _cb364_intr_out 449 _cb364_intr0: 450 btst #0x00,d1 451 bne _cb364_intr5 452 bsr _cb364_intr1 453 bra _cb364_intr_out 454 _cb364_intr1: 455 movl d0,a0@(0xfe600c) 456 nop 457 tstb d0 458 beq _cb364_intr3 459 movl #0x0002,a0@(0xfe6040) 460 movl #0x0105,a0@(0xfe6048) 461 movl #0x000e,a0@(0xfe604c) 462 movl #0x00c3,a0@(0xfe6058) 463 movl #0x0061,a0@(0xfe605c) 464 btst #0x06,d2 465 beq _cb364_intr2 466 movl #0x001c,a0@(0xfe6050) 467 movl #0x00bc,a0@(0xfe6054) 468 movl #0x0012,a0@(0xfe6060) 469 movl #0x000e,a0@(0xfe6044) 470 movl #0x00c3,a0@(0xfe6064) 471 movl #0x0061,a0@(0xfe6020) 472 rts 473 _cb364_intr2: 474 movl #0x0016,a0@(0xfe6050) 475 movl #0x00b6,a0@(0xfe6054) 476 movl #0x0011,a0@(0xfe6060) 477 movl #0x0101,a0@(0xfe6044) 478 movl #0x00bf,a0@(0xfe6064) 479 movl #0x0001,a0@(0xfe6020) 480 rts 481 _cb364_intr3: 482 movl #0x0002,a0@(0xfe6040) 483 movl #0x0209,a0@(0xfe6044) 484 movl #0x020c,a0@(0xfe6048) 485 movl #0x000f,a0@(0xfe604c) 486 movl #0x0027,a0@(0xfe6050) 487 movl #0x00c7,a0@(0xfe6054) 488 movl #0x00d7,a0@(0xfe6058) 489 movl #0x006b,a0@(0xfe605c) 490 movl #0x0029,a0@(0xfe6060) 491 oril #0x0040,a0@(0xfe6064) 492 movl #0x0000,a0@(0xfe6020) 493 rts 494 _cb364_intr4: 495 movq #0x00,d0 496 _cb364_intr5: 497 movl a0@(0xfe600c),d1 498 andl #0x3,d1 499 cmpl d1,d0 500 beq _cb364_intr_out 501 bsr _cb364_intr1 502 _cb364_intr_out: 503 movl #0x1,a0@(0xfe6014) 504 _cb364_intr_quit: 505 " : : "g" (slotbase) : "a0","d0","d1","d2"); 506 } 507
Indexes created Tue Sep 30 20:09:53 GMT 2025