grf_nubus.c revision 1.23
1 /* $NetBSD: grf_nubus.c,v 1.23 1997/05/02 00:54:29 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 60 static int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg)); 61 static caddr_t grfmv_phys __P((struct grf_softc *gp, vm_offset_t addr)); 62 static int grfmv_match __P((struct device *, struct cfdata *, void *)); 63 static void grfmv_attach __P((struct device *, struct device *, void *)); 64 65 struct cfdriver macvid_cd = { 66 NULL, "macvid", DV_DULL 67 }; 68 69 struct cfattach macvid_ca = { 70 sizeof(struct grfbus_softc), grfmv_match, grfmv_attach 71 }; 72 73 static void 74 load_image_data(data, image) 75 caddr_t data; 76 struct image_data *image; 77 { 78 bcopy(data , &image->size, 4); 79 bcopy(data + 4, &image->offset, 4); 80 bcopy(data + 8, &image->rowbytes, 2); 81 bcopy(data + 10, &image->top, 2); 82 bcopy(data + 12, &image->left, 2); 83 bcopy(data + 14, &image->bottom, 2); 84 bcopy(data + 16, &image->right, 2); 85 bcopy(data + 18, &image->version, 2); 86 bcopy(data + 20, &image->packType, 2); 87 bcopy(data + 22, &image->packSize, 4); 88 bcopy(data + 26, &image->hRes, 4); 89 bcopy(data + 30, &image->vRes, 4); 90 bcopy(data + 34, &image->pixelType, 2); 91 bcopy(data + 36, &image->pixelSize, 2); 92 bcopy(data + 38, &image->cmpCount, 2); 93 bcopy(data + 40, &image->cmpSize, 2); 94 bcopy(data + 42, &image->planeBytes, 4); 95 } 96 97 98 static int 99 grfmv_match(parent, cf, aux) 100 struct device *parent; 101 struct cfdata *cf; 102 void *aux; 103 { 104 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 105 106 if (na->category != NUBUS_CATEGORY_DISPLAY) 107 return 0; 108 109 if (na->type != NUBUS_TYPE_VIDEO) 110 return 0; 111 112 if (na->drsw != NUBUS_DRSW_APPLE) 113 return 0; 114 115 /* 116 * If we've gotten this far, then we're dealing with a real-live 117 * Apple QuickDraw-compatible display card resource. Now, how to 118 * determine that this is an active resource??? Dunno. But we'll 119 * proceed like it is. 120 */ 121 122 return 1; 123 } 124 125 static void 126 grfmv_attach(parent, self, aux) 127 struct device *parent, *self; 128 void *aux; 129 { 130 struct grfbus_softc *sc = (struct grfbus_softc *)self; 131 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 132 struct image_data image_store, image; 133 struct grfmode *gm; 134 char cardname[CARD_NAME_LEN]; 135 nubus_dirent dirent; 136 nubus_dir dir, mode_dir; 137 int mode; 138 139 sc->card_id = na->drhw; 140 141 bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot)); 142 143 nubus_get_main_dir(&sc->sc_slot, &dir); 144 145 if (nubus_find_rsrc(&sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) 146 return; 147 148 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir); 149 150 if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, 151 NUBUS_RSRC_TYPE, &dirent) <= 0) 152 if ((na->rsrcid != 128) || 153 (nubus_find_rsrc(&sc->sc_slot, &dir, 129, &dirent) <= 0)) 154 return; 155 156 mode = NUBUS_RSRC_FIRSTMODE; 157 if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) { 158 printf("\n%s: probe failed to get board rsrc.\n", 159 sc->sc_dev.dv_xname); 160 return; 161 } 162 163 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir); 164 165 if (nubus_find_rsrc(&sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) 166 <= 0) { 167 printf("\n%s: probe failed to get mode dir.\n", 168 sc->sc_dev.dv_xname); 169 return; 170 } 171 172 if (nubus_get_ind_data(&sc->sc_slot, &dirent, (caddr_t)&image_store, 173 sizeof(struct image_data)) <= 0) { 174 printf("\n%s: probe failed to get indirect mode data.\n", 175 sc->sc_dev.dv_xname); 176 return; 177 } 178 179 /* Need to load display info (and driver?), etc... (?) */ 180 181 load_image_data((caddr_t)&image_store, &image); 182 183 gm = &sc->curr_mode; 184 gm->mode_id = mode; 185 gm->fbbase = (caddr_t)(sc->sc_slot.virtual_base + image.offset); 186 gm->fboff = image.offset; 187 gm->rowbytes = image.rowbytes; 188 gm->width = image.right - image.left; 189 gm->height = image.bottom - image.top; 190 gm->fbsize = sc->curr_mode.height * sc->curr_mode.rowbytes; 191 gm->hres = image.hRes; 192 gm->vres = image.vRes; 193 gm->ptype = image.pixelType; 194 gm->psize = image.pixelSize; 195 196 strncpy(cardname, nubus_get_card_name(&sc->sc_slot), 197 CARD_NAME_LEN); 198 cardname[CARD_NAME_LEN-1] = '\0'; 199 printf(": %s\n", cardname); 200 201 if (sc->card_id == NUBUS_DRHW_TFB) { 202 /* 203 * This is the Toby card, but apparently some manufacturers 204 * (like Cornerstone) didn't bother to get/use their own 205 * value here, even though the cards are different, so we 206 * so we try to differentiate here. 207 */ 208 if (strncmp(cardname, "Samsung 768", 11) == 0) 209 sc->card_id = NUBUS_DRHW_SAM768; 210 else if (strncmp(cardname, "Toby frame", 10) != 0) 211 printf("%s: This display card pretends to be a TFB!", 212 sc->sc_dev.dv_xname); 213 } 214 215 switch (sc->card_id) { 216 case NUBUS_DRHW_M2HRVC: 217 case NUBUS_DRHW_TFB: 218 sc->cli_offset = 0xa0000; 219 sc->cli_value = 0; 220 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 221 break; 222 case NUBUS_DRHW_WVC: 223 sc->cli_offset = 0xa00000; 224 sc->cli_value = 0; 225 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 226 break; 227 case NUBUS_DRHW_RPC8XJ: 228 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_radius, sc); 229 break; 230 case NUBUS_DRHW_FIILX: 231 case NUBUS_DRHW_FIISXDSP: 232 sc->cli_offset = 0xF05000; 233 sc->cli_value = 0x80; 234 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 235 break; 236 case NUBUS_DRHW_SAM768: 237 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cti, sc); 238 break; 239 case NUBUS_DRHW_CB264: 240 case NUBUS_DRHW_CB364: 241 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cb264, sc); 242 break; 243 case NUBUS_DRHW_SE30: 244 /* Do nothing--SE/30 interrupts are disabled */ 245 break; 246 case NUBUS_DRHW_MICRON: 247 /* What do we know about this one? */ 248 default: 249 printf("%s: Unknown video card ID 0x%x --", 250 sc->sc_dev.dv_xname, sc->card_id); 251 printf(" Not installing interrupt routine.\n"); 252 break; 253 } 254 255 /* Perform common video attachment. */ 256 grf_establish(sc, &sc->sc_slot, grfmv_mode, grfmv_phys); 257 } 258 259 static int 260 grfmv_mode(gp, cmd, arg) 261 struct grf_softc *gp; 262 int cmd; 263 void *arg; 264 { 265 switch (cmd) { 266 case GM_GRFON: 267 case GM_GRFOFF: 268 return 0; 269 case GM_CURRMODE: 270 break; 271 case GM_NEWMODE: 272 break; 273 case GM_LISTMODES: 274 break; 275 } 276 return EINVAL; 277 } 278 279 static caddr_t 280 grfmv_phys(gp, addr) 281 struct grf_softc *gp; 282 vm_offset_t addr; 283 { 284 return (caddr_t)(NUBUS_SLOT2PA(gp->sc_slot->slot) + 285 (addr - gp->sc_slot->virtual_base)); 286 } 287 288 /* Interrupt handlers... */ 289 /* 290 * Generic routine to clear interrupts for cards where it simply takes 291 * a CLR.B to clear the interrupt. The offset of this byte varies between 292 * cards. 293 */ 294 /*ARGSUSED*/ 295 static void 296 grfmv_intr_generic(vsc, slot) 297 void *vsc; 298 int slot; 299 { 300 static char zero = 0; 301 struct grfbus_softc *sc; 302 volatile char *slotbase; 303 304 sc = (struct grfbus_softc *)vsc; 305 slotbase = (volatile char *)sc->sc_slot.virtual_base; 306 slotbase[sc->cli_offset] = zero; 307 } 308 309 /* 310 * Generic routine to clear interrupts for cards where it simply takes 311 * a CLR.B to clear the interrupt. The offset of this byte varies between 312 * cards. 313 */ 314 /*ARGSUSED*/ 315 static void 316 grfmv_intr_radius(vsc, slot) 317 void *vsc; 318 int slot; 319 { 320 unsigned char c; 321 struct grfbus_softc *sc; 322 volatile char *slotbase; 323 324 sc = (struct grfbus_softc *)vsc; 325 slotbase = (volatile char *)sc->sc_slot.virtual_base; 326 327 /* 328 * The value 0x66 was the observed value on one card. It is read 329 * from the driver's information block, so this may not be sufficient. 330 * Then again, we're not setting up any other interrupts... 331 */ 332 c = 0x66; 333 334 c |= 0x80; 335 slotbase[0xD00403] = c; 336 c &= 0x7F; 337 slotbase[0xD00403] = c; 338 } 339 340 /* 341 * Routine to clear interrupts on Samsung 768x1006 video controller. 342 * This controller was manufactured by Cornerstone Technology, Inc., 343 * now known as Cornerstone Imaging. 344 * 345 * To clear this interrupt, we apparently have to set, then clear, 346 * bit 2 at byte offset 0x80000 from the card's base. 347 * Information for this provided by Brad Salai <bsalai (at) servtech.com> 348 */ 349 /*ARGSUSED*/ 350 static void 351 grfmv_intr_cti(vsc, slot) 352 void *vsc; 353 int slot; 354 { 355 struct grfbus_softc *sc; 356 volatile char *slotbase; 357 358 sc = (struct grfbus_softc *)vsc; 359 slotbase = ((volatile char *)sc->sc_slot.virtual_base) + 0x00080000; 360 *slotbase = (*slotbase | 0x02); 361 *slotbase = (*slotbase & 0xFD); 362 } 363 364 /*ARGSUSED*/ 365 static void 366 grfmv_intr_cb264(vsc, slot) 367 void *vsc; 368 int slot; 369 { 370 struct grfbus_softc *sc; 371 volatile char *slotbase; 372 373 sc = (struct grfbus_softc *)vsc; 374 slotbase = (volatile char *)sc->sc_slot.virtual_base; 375 asm volatile(" movl %0,a0 376 movl a0@(0xff6028),d0 377 andl #0x2,d0 378 beq _mv_intr0 379 movql #0x3,d0 380 _mv_intr0: 381 movl a0@(0xff600c),d1 382 andl #0x3,d1 383 cmpl d1,d0 384 beq _mv_intr_fin 385 movl d0,a0@(0xff600c) 386 nop 387 tstb d0 388 beq _mv_intr1 389 movl #0x0002,a0@(0xff6040) 390 movl #0x0102,a0@(0xff6044) 391 movl #0x0105,a0@(0xff6048) 392 movl #0x000e,a0@(0xff604c) 393 movl #0x001c,a0@(0xff6050) 394 movl #0x00bc,a0@(0xff6054) 395 movl #0x00c3,a0@(0xff6058) 396 movl #0x0061,a0@(0xff605c) 397 movl #0x0012,a0@(0xff6060) 398 bra _mv_intr_fin 399 _mv_intr1: 400 movl #0x0002,a0@(0xff6040) 401 movl #0x0209,a0@(0xff6044) 402 movl #0x020c,a0@(0xff6048) 403 movl #0x000f,a0@(0xff604c) 404 movl #0x0027,a0@(0xff6050) 405 movl #0x00c7,a0@(0xff6054) 406 movl #0x00d7,a0@(0xff6058) 407 movl #0x006b,a0@(0xff605c) 408 movl #0x0029,a0@(0xff6060) 409 _mv_intr_fin: 410 movl #0x1,a0@(0xff6014)" 411 : : "g" (slotbase) : "a0","d0","d1"); 412 } 413
Indexes created Tue Sep 30 20:09:53 GMT 2025