grf_nubus.c revision 1.21
1 /* $NetBSD: grf_nubus.c,v 1.21 1997/04/14 16:28:35 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 "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_cti __P((void *vsc, int slot)); 57 static void grfmv_intr_cb264 __P((void *vsc, int slot)); 58 59 static int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg)); 60 static caddr_t grfmv_phys __P((struct grf_softc *gp, vm_offset_t addr)); 61 static int grfmv_match __P((struct device *, struct cfdata *, void *)); 62 static void grfmv_attach __P((struct device *, struct device *, void *)); 63 64 struct cfdriver macvid_cd = { 65 NULL, "macvid", DV_DULL 66 }; 67 68 struct cfattach macvid_ca = { 69 sizeof(struct grfbus_softc), grfmv_match, grfmv_attach 70 }; 71 72 static void 73 load_image_data(data, image) 74 caddr_t data; 75 struct image_data *image; 76 { 77 bcopy(data , &image->size, 4); 78 bcopy(data + 4, &image->offset, 4); 79 bcopy(data + 8, &image->rowbytes, 2); 80 bcopy(data + 10, &image->top, 2); 81 bcopy(data + 12, &image->left, 2); 82 bcopy(data + 14, &image->bottom, 2); 83 bcopy(data + 16, &image->right, 2); 84 bcopy(data + 18, &image->version, 2); 85 bcopy(data + 20, &image->packType, 2); 86 bcopy(data + 22, &image->packSize, 4); 87 bcopy(data + 26, &image->hRes, 4); 88 bcopy(data + 30, &image->vRes, 4); 89 bcopy(data + 34, &image->pixelType, 2); 90 bcopy(data + 36, &image->pixelSize, 2); 91 bcopy(data + 38, &image->cmpCount, 2); 92 bcopy(data + 40, &image->cmpSize, 2); 93 bcopy(data + 42, &image->planeBytes, 4); 94 } 95 96 97 static int 98 grfmv_match(parent, cf, aux) 99 struct device *parent; 100 struct cfdata *cf; 101 void *aux; 102 { 103 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 104 105 if (na->category != NUBUS_CATEGORY_DISPLAY) 106 return 0; 107 108 if (na->type != NUBUS_TYPE_VIDEO) 109 return 0; 110 111 if (na->drsw != NUBUS_DRSW_APPLE) 112 return 0; 113 114 /* 115 * If we've gotten this far, then we're dealing with a real-live 116 * Apple QuickDraw-compatible display card resource. Now, how to 117 * determine that this is an active resource??? Dunno. But we'll 118 * proceed like it is. 119 */ 120 121 return 1; 122 } 123 124 static void 125 grfmv_attach(parent, self, aux) 126 struct device *parent, *self; 127 void *aux; 128 { 129 struct grfbus_softc *sc = (struct grfbus_softc *)self; 130 struct nubus_attach_args *na = (struct nubus_attach_args *)aux; 131 struct image_data image_store, image; 132 struct grfmode *gm; 133 char cardname[CARD_NAME_LEN]; 134 nubus_dirent dirent; 135 nubus_dir dir, mode_dir; 136 int mode; 137 138 sc->card_id = na->drhw; 139 140 bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot)); 141 142 nubus_get_main_dir(&sc->sc_slot, &dir); 143 144 if (nubus_find_rsrc(&sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) 145 return; 146 147 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir); 148 149 if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, 150 NUBUS_RSRC_TYPE, &dirent) <= 0) 151 if ((na->rsrcid != 128) || 152 (nubus_find_rsrc(&sc->sc_slot, &dir, 129, &dirent) <= 0)) 153 return; 154 155 mode = NUBUS_RSRC_FIRSTMODE; 156 if (nubus_find_rsrc(&sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) { 157 printf("\n%s: probe failed to get board rsrc.\n", 158 sc->sc_dev.dv_xname); 159 return; 160 } 161 162 nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir); 163 164 if (nubus_find_rsrc(&sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) 165 <= 0) { 166 printf("\n%s: probe failed to get mode dir.\n", 167 sc->sc_dev.dv_xname); 168 return; 169 } 170 171 if (nubus_get_ind_data(&sc->sc_slot, &dirent, (caddr_t)&image_store, 172 sizeof(struct image_data)) <= 0) { 173 printf("\n%s: probe failed to get indirect mode data.\n", 174 sc->sc_dev.dv_xname); 175 return; 176 } 177 178 /* Need to load display info (and driver?), etc... (?) */ 179 180 load_image_data((caddr_t)&image_store, &image); 181 182 gm = &sc->curr_mode; 183 gm->mode_id = mode; 184 gm->fbbase = (caddr_t)(sc->sc_slot.virtual_base + image.offset); 185 gm->fboff = image.offset; 186 gm->rowbytes = image.rowbytes; 187 gm->width = image.right - image.left; 188 gm->height = image.bottom - image.top; 189 gm->fbsize = sc->curr_mode.height * sc->curr_mode.rowbytes; 190 gm->hres = image.hRes; 191 gm->vres = image.vRes; 192 gm->ptype = image.pixelType; 193 gm->psize = image.pixelSize; 194 195 strncpy(cardname, nubus_get_card_name(&sc->sc_slot), 196 CARD_NAME_LEN); 197 cardname[CARD_NAME_LEN-1] = '\0'; 198 printf(": %s\n", cardname); 199 200 if (sc->card_id == NUBUS_DRHW_TFB) { 201 /* 202 * This is the Toby card, but apparently some manufacturers 203 * (like Cornerstone) didn't bother to get/use their own 204 * value here, even though the cards are different, so we 205 * so we try to differentiate here. 206 */ 207 if (strncmp(cardname, "Samsung 768", 11) == 0) 208 sc->card_id = NUBUS_DRHW_SAM768; 209 else if (strncmp(cardname, "Toby frame", 10) != 0) 210 printf("%s: This display card pretends to be a TFB!", 211 sc->sc_dev.dv_xname); 212 } 213 214 switch (sc->card_id) { 215 case NUBUS_DRHW_M2HRVC: 216 case NUBUS_DRHW_TFB: 217 sc->cli_offset = 0xa0000; 218 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 219 break; 220 case NUBUS_DRHW_WVC: 221 sc->cli_offset = 0xa00000; 222 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_generic, sc); 223 break; 224 case NUBUS_DRHW_SAM768: 225 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cti, sc); 226 break; 227 case NUBUS_DRHW_CB264: 228 add_nubus_intr(sc->sc_slot.slot, grfmv_intr_cb264, sc); 229 break; 230 case NUBUS_DRHW_SE30: 231 /* Do nothing--SE/30 interrupts are disabled */ 232 break; 233 case NUBUS_DRHW_MICRON: 234 /* What do we know about this one? */ 235 default: 236 printf("%s: Unknown video card ID 0x%x --", 237 sc->sc_dev.dv_xname, sc->card_id); 238 printf(" Not installing interrupt routine.\n"); 239 break; 240 } 241 242 /* Perform common video attachment. */ 243 grf_establish(sc, &sc->sc_slot, grfmv_mode, grfmv_phys); 244 } 245 246 static int 247 grfmv_mode(gp, cmd, arg) 248 struct grf_softc *gp; 249 int cmd; 250 void *arg; 251 { 252 switch (cmd) { 253 case GM_GRFON: 254 case GM_GRFOFF: 255 return 0; 256 case GM_CURRMODE: 257 break; 258 case GM_NEWMODE: 259 break; 260 case GM_LISTMODES: 261 break; 262 } 263 return EINVAL; 264 } 265 266 static caddr_t 267 grfmv_phys(gp, addr) 268 struct grf_softc *gp; 269 vm_offset_t addr; 270 { 271 return (caddr_t)(NUBUS_SLOT2PA(gp->sc_slot->slot) + 272 (addr - gp->sc_slot->virtual_base)); 273 } 274 275 /* Interrupt handlers... */ 276 /* 277 * Generic routine to clear interrupts for cards where it simply takes 278 * a CLR.B to clear the interrupt. The offset of this byte varies between 279 * cards. 280 */ 281 /*ARGSUSED*/ 282 static void 283 grfmv_intr_generic(vsc, slot) 284 void *vsc; 285 int slot; 286 { 287 static char zero = 0; 288 struct grfbus_softc *sc; 289 volatile char *slotbase; 290 291 sc = (struct grfbus_softc *)vsc; 292 slotbase = (volatile char *)sc->sc_slot.virtual_base; 293 slotbase[sc->cli_offset] = zero; 294 } 295 296 /* 297 * Routine to clear interrupts on Samsung 768x1006 video controller. 298 * This controller was manufactured by Cornerstone Technology, Inc., 299 * now known as Cornerstone Imaging. 300 * 301 * To clear this interrupt, we apparently have to set, then clear, 302 * bit 2 at byte offset 0x80000 from the card's base. 303 * Information for this provided by Brad Salai <bsalai (at) servtech.com> 304 */ 305 /*ARGSUSED*/ 306 static void 307 grfmv_intr_cti(vsc, slot) 308 void *vsc; 309 int slot; 310 { 311 struct grfbus_softc *sc; 312 volatile char *slotbase; 313 314 sc = (struct grfbus_softc *)vsc; 315 slotbase = ((volatile char *)sc->sc_slot.virtual_base) + 0x00080000; 316 *slotbase = (*slotbase | 0x02); 317 *slotbase = (*slotbase & 0xFD); 318 } 319 320 /*ARGSUSED*/ 321 static void 322 grfmv_intr_cb264(vsc, slot) 323 void *vsc; 324 int slot; 325 { 326 struct grfbus_softc *sc; 327 volatile char *slotbase; 328 329 sc = (struct grfbus_softc *)vsc; 330 slotbase = (volatile char *)sc->sc_slot.virtual_base; 331 asm volatile(" movl %0,a0 332 movl a0@(0xff6028),d0 333 andl #0x2,d0 334 beq _mv_intr0 335 movql #0x3,d0 336 _mv_intr0: 337 movl a0@(0xff600c),d1 338 andl #0x3,d1 339 cmpl d1,d0 340 beq _mv_intr_fin 341 movl d0,a0@(0xff600c) 342 nop 343 tstb d0 344 beq _mv_intr1 345 movl #0x0002,a0@(0xff6040) 346 movl #0x0102,a0@(0xff6044) 347 movl #0x0105,a0@(0xff6048) 348 movl #0x000e,a0@(0xff604c) 349 movl #0x001c,a0@(0xff6050) 350 movl #0x00bc,a0@(0xff6054) 351 movl #0x00c3,a0@(0xff6058) 352 movl #0x0061,a0@(0xff605c) 353 movl #0x0012,a0@(0xff6060) 354 bra _mv_intr_fin 355 _mv_intr1: 356 movl #0x0002,a0@(0xff6040) 357 movl #0x0209,a0@(0xff6044) 358 movl #0x020c,a0@(0xff6048) 359 movl #0x000f,a0@(0xff604c) 360 movl #0x0027,a0@(0xff6050) 361 movl #0x00c7,a0@(0xff6054) 362 movl #0x00d7,a0@(0xff6058) 363 movl #0x006b,a0@(0xff605c) 364 movl #0x0029,a0@(0xff6060) 365 _mv_intr_fin: 366 movl #0x1,a0@(0xff6014)" 367 : : "g" (slotbase) : "a0","d0","d1"); 368 } 369
Indexes created Tue Sep 30 20:09:53 GMT 2025