grf.c revision 1.22
1 /* $NetBSD: grf.c,v 1.22 1995/08/18 16:21:33 chopps Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: grf.c 1.31 91/01/21$ 41 * 42 * @(#)grf.c 7.8 (Berkeley) 5/7/91 43 */ 44 45 /* 46 * Graphics display driver for the Amiga 47 * This is the hardware-independent portion of the driver. 48 * Hardware access is through the grf_softc->g_mode routine. 49 */ 50 51 #include <sys/param.h> 52 #include <sys/proc.h> 53 #include <sys/ioctl.h> 54 #include <sys/device.h> 55 #include <sys/file.h> 56 #include <sys/malloc.h> 57 #include <sys/conf.h> 58 #include <sys/systm.h> 59 #include <sys/vnode.h> 60 #include <sys/mman.h> 61 #include <vm/vm.h> 62 #include <vm/vm_kern.h> 63 #include <vm/vm_page.h> 64 #include <vm/vm_pager.h> 65 #include <machine/cpu.h> 66 #include <amiga/amiga/color.h> /* DEBUG */ 67 #include <amiga/amiga/device.h> 68 #include <amiga/dev/grfioctl.h> 69 #include <amiga/dev/grfvar.h> 70 #include <amiga/dev/itevar.h> 71 72 #include "view.h" 73 74 #include "grf.h" 75 #if NGRF > 0 76 77 #include "ite.h" 78 #if NITE == 0 79 #define ite_on(u,f) 80 #define ite_off(u,f) 81 #define ite_reinit(d) 82 #endif 83 84 int grfopen __P((dev_t, int, int, struct proc *)); 85 int grfclose __P((dev_t, int)); 86 int grfioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 87 int grfselect __P((dev_t, int)); 88 int grfmmap __P((dev_t, int, int)); 89 90 int grfon __P((dev_t)); 91 int grfoff __P((dev_t)); 92 int grfsinfo __P((dev_t, struct grfdyninfo *)); 93 #ifdef BANKEDDEVPAGER 94 int grfbanked_get __P((dev_t, off_t, int)); 95 int grfbanked_cur __P((dev_t)); 96 int grfbanked_set __P((dev_t, int)); 97 #endif 98 99 void grfattach __P((struct device *, struct device *, void *)); 100 int grfmatch __P((struct device *, struct cfdata *, void *)); 101 int grfprint __P((void *, char *)); 102 /* 103 * pointers to grf drivers device structs 104 */ 105 struct grf_softc *grfsp[NGRF]; 106 107 108 struct cfdriver grfcd = { 109 NULL, "grf", (cfmatch_t)grfmatch, grfattach, DV_DULL, 110 sizeof(struct device), NULL, 0 }; 111 112 /* 113 * only used in console init. 114 */ 115 static struct cfdata *cfdata; 116 117 /* 118 * match if the unit of grf matches its perspective 119 * low level board driver. 120 */ 121 int 122 grfmatch(pdp, cfp, auxp) 123 struct device *pdp; 124 struct cfdata *cfp; 125 void *auxp; 126 { 127 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 128 return(0); 129 cfdata = cfp; 130 return(1); 131 } 132 133 /* 134 * attach.. plug pointer in and print some info. 135 * then try and attach an ite to us. note: dp is NULL 136 * durring console init. 137 */ 138 void 139 grfattach(pdp, dp, auxp) 140 struct device *pdp, *dp; 141 void *auxp; 142 { 143 struct grf_softc *gp; 144 int maj; 145 146 gp = (struct grf_softc *)pdp; 147 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 148 149 /* 150 * find our major device number 151 */ 152 for(maj = 0; maj < nchrdev; maj++) 153 if (cdevsw[maj].d_open == grfopen) 154 break; 155 156 gp->g_grfdev = makedev(maj, gp->g_unit); 157 if (dp != NULL) { 158 printf(": width %d height %d", gp->g_display.gd_dwidth, 159 gp->g_display.gd_dheight); 160 if (gp->g_display.gd_colors == 2) 161 printf(" monochrome\n"); 162 else 163 printf(" colors %d\n", gp->g_display.gd_colors); 164 } 165 166 /* 167 * try and attach an ite 168 */ 169 amiga_config_found(cfdata, dp, gp, grfprint); 170 } 171 172 int 173 grfprint(auxp, pnp) 174 void *auxp; 175 char *pnp; 176 { 177 if (pnp) 178 printf("ite at %s", pnp); 179 return(UNCONF); 180 } 181 182 /*ARGSUSED*/ 183 int 184 grfopen(dev, flags, devtype, p) 185 dev_t dev; 186 int flags, devtype; 187 struct proc *p; 188 { 189 struct grf_softc *gp; 190 191 if (GRFUNIT(dev) >= NGRF) 192 return(ENXIO); 193 194 gp = grfsp[GRFUNIT(dev)]; 195 196 if ((gp->g_flags & GF_ALIVE) == 0) 197 return(ENXIO); 198 199 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 200 return(EBUSY); 201 202 return(0); 203 } 204 205 /*ARGSUSED*/ 206 int 207 grfclose(dev, flags) 208 dev_t dev; 209 int flags; 210 { 211 struct grf_softc *gp; 212 213 gp = grfsp[GRFUNIT(dev)]; 214 (void)grfoff(dev); 215 gp->g_flags &= GF_ALIVE; 216 return(0); 217 } 218 219 /*ARGSUSED*/ 220 int 221 grfioctl(dev, cmd, data, flag, p) 222 dev_t dev; 223 u_long cmd; 224 caddr_t data; 225 int flag; 226 struct proc *p; 227 { 228 struct grf_softc *gp; 229 int error; 230 231 gp = grfsp[GRFUNIT(dev)]; 232 error = 0; 233 234 switch (cmd) { 235 case OGRFIOCGINFO: 236 /* argl.. no bank-member.. */ 237 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 238 break; 239 case GRFIOCGINFO: 240 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 241 break; 242 case GRFIOCON: 243 error = grfon(dev); 244 break; 245 case GRFIOCOFF: 246 error = grfoff(dev); 247 break; 248 case GRFIOCSINFO: 249 error = grfsinfo(dev, (struct grfdyninfo *) data); 250 break; 251 case GRFGETVMODE: 252 return(gp->g_mode(gp, GM_GRFGETVMODE, data)); 253 case GRFSETVMODE: 254 error = gp->g_mode(gp, GM_GRFSETVMODE, data); 255 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 256 ite_reinit(gp->g_itedev); 257 break; 258 case GRFGETNUMVM: 259 return(gp->g_mode(gp, GM_GRFGETNUMVM, data)); 260 /* 261 * these are all hardware dependant, and have to be resolved 262 * in the respective driver. 263 */ 264 case GRFIOCPUTCMAP: 265 case GRFIOCGETCMAP: 266 case GRFIOCSSPRITEPOS: 267 case GRFIOCGSPRITEPOS: 268 case GRFIOCSSPRITEINF: 269 case GRFIOCGSPRITEINF: 270 case GRFIOCGSPRITEMAX: 271 case GRFIOCBITBLT: 272 case GRFIOCSETMON: 273 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 274 Amiga. 15/11/94 ill */ 275 /* 276 * We need the minor dev number to get the overlay/image 277 * information for grf_ul. 278 */ 279 return(gp->g_mode(gp, GM_GRFIOCTL, cmd, data, dev)); 280 default: 281 #if NVIEW > 0 282 /* 283 * check to see whether it's a command recognized by the 284 * view code if the unit is 0 285 * XXX 286 */ 287 if (GRFUNIT(dev) == 0) 288 return(viewioctl(dev, cmd, data, flag, p)); 289 #endif 290 error = EINVAL; 291 break; 292 293 } 294 return(error); 295 } 296 297 /*ARGSUSED*/ 298 int 299 grfselect(dev, rw) 300 dev_t dev; 301 int rw; 302 { 303 if (rw == FREAD) 304 return(0); 305 return(1); 306 } 307 308 /* 309 * map the contents of a graphics display card into process' 310 * memory space. 311 */ 312 int 313 grfmmap(dev, off, prot) 314 dev_t dev; 315 int off, prot; 316 { 317 struct grf_softc *gp; 318 struct grfinfo *gi; 319 320 gp = grfsp[GRFUNIT(dev)]; 321 gi = &gp->g_display; 322 323 /* 324 * control registers 325 */ 326 if (off >= 0 && off < gi->gd_regsize) 327 return(((u_int)gi->gd_regaddr + off) >> PGSHIFT); 328 329 /* 330 * frame buffer 331 */ 332 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 333 off -= gi->gd_regsize; 334 #ifdef BANKEDDEVPAGER 335 if (gi->gd_bank_size) 336 off %= gi->gd_bank_size; 337 #endif 338 return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 339 } 340 /* bogus */ 341 return(-1); 342 } 343 344 int 345 grfon(dev) 346 dev_t dev; 347 { 348 struct grf_softc *gp; 349 350 gp = grfsp[GRFUNIT(dev)]; 351 352 if (gp->g_flags & GF_GRFON) 353 return(0); 354 355 gp->g_flags |= GF_GRFON; 356 if (gp->g_itedev != NODEV) 357 ite_off(gp->g_itedev, 3); 358 359 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON)); 360 } 361 362 int 363 grfoff(dev) 364 dev_t dev; 365 { 366 struct grf_softc *gp; 367 int error; 368 369 gp = grfsp[GRFUNIT(dev)]; 370 371 if ((gp->g_flags & GF_GRFON) == 0) 372 return(0); 373 374 gp->g_flags &= ~GF_GRFON; 375 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF); 376 377 /* 378 * Closely tied together no X's 379 */ 380 if (gp->g_itedev != NODEV) 381 ite_on(gp->g_itedev, 2); 382 383 return(error); 384 } 385 386 int 387 grfsinfo(dev, dyninfo) 388 dev_t dev; 389 struct grfdyninfo *dyninfo; 390 { 391 struct grf_softc *gp; 392 int error; 393 394 gp = grfsp[GRFUNIT(dev)]; 395 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo); 396 397 /* 398 * Closely tied together no X's 399 */ 400 if (gp->g_itedev != NODEV) 401 ite_reinit(gp->g_itedev); 402 return(error); 403 } 404 405 #ifdef BANKEDDEVPAGER 406 407 int 408 grfbanked_get (dev, off, prot) 409 dev_t dev; 410 off_t off; 411 int prot; 412 { 413 struct grf_softc *gp; 414 struct grfinfo *gi; 415 int error, bank; 416 417 gp = grfsp[GRFUNIT(dev)]; 418 gi = &gp->g_display; 419 420 off -= gi->gd_regsize; 421 if (off < 0 || off >= gi->gd_fbsize) 422 return -1; 423 424 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 425 return error ? -1 : bank; 426 } 427 428 int 429 grfbanked_cur (dev) 430 dev_t dev; 431 { 432 struct grf_softc *gp; 433 int error, bank; 434 435 gp = grfsp[GRFUNIT(dev)]; 436 437 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank); 438 return(error ? -1 : bank); 439 } 440 441 int 442 grfbanked_set (dev, bank) 443 dev_t dev; 444 int bank; 445 { 446 struct grf_softc *gp; 447 448 gp = grfsp[GRFUNIT(dev)]; 449 return(gp->g_mode(gp, GM_GRFSETBANK, bank) ? -1 : 0); 450 } 451 452 #endif /* BANKEDDEVPAGER */ 453 #endif /* NGRF > 0 */ 454
Indexes created Wed Sep 24 22:09:59 GMT 2025