grf.c revision 1.36
1 /* $NetBSD: grf.c,v 1.36 2000/06/26 14:20:30 mrg 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/systm.h> 58 #include <sys/vnode.h> 59 #include <sys/mman.h> 60 #include <sys/poll.h> 61 #include <vm/vm.h> 62 #include <uvm/uvm_extern.h> 63 #include <machine/cpu.h> 64 #include <machine/fbio.h> 65 #include <amiga/amiga/color.h> /* DEBUG */ 66 #include <amiga/amiga/device.h> 67 #include <amiga/dev/grfioctl.h> 68 #include <amiga/dev/grfvar.h> 69 #include <amiga/dev/itevar.h> 70 #include <amiga/dev/viewioctl.h> 71 72 #include <sys/conf.h> 73 #include <machine/conf.h> 74 75 #include "view.h" 76 #include "grf.h" 77 78 #if NGRF > 0 79 #include "ite.h" 80 #if NITE == 0 81 #define ite_on(u,f) 82 #define ite_off(u,f) 83 #define ite_reinit(d) 84 #endif 85 86 int grfon __P((dev_t)); 87 int grfoff __P((dev_t)); 88 int grfsinfo __P((dev_t, struct grfdyninfo *)); 89 #ifdef BANKEDDEVPAGER 90 int grfbanked_get __P((dev_t, off_t, int)); 91 int grfbanked_cur __P((dev_t)); 92 int grfbanked_set __P((dev_t, int)); 93 #endif 94 95 void grfattach __P((struct device *, struct device *, void *)); 96 int grfmatch __P((struct device *, struct cfdata *, void *)); 97 int grfprint __P((void *, const char *)); 98 /* 99 * pointers to grf drivers device structs 100 */ 101 struct grf_softc *grfsp[NGRF]; 102 103 struct cfattach grf_ca = { 104 sizeof(struct device), grfmatch, grfattach 105 }; 106 107 /* 108 * only used in console init. 109 */ 110 static struct cfdata *cfdata; 111 112 /* 113 * match if the unit of grf matches its perspective 114 * low level board driver. 115 */ 116 int 117 grfmatch(pdp, cfp, auxp) 118 struct device *pdp; 119 struct cfdata *cfp; 120 void *auxp; 121 { 122 123 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 124 return(0); 125 cfdata = cfp; 126 return(1); 127 } 128 129 /* 130 * attach.. plug pointer in and print some info. 131 * then try and attach an ite to us. note: dp is NULL 132 * durring console init. 133 */ 134 void 135 grfattach(pdp, dp, auxp) 136 struct device *pdp, *dp; 137 void *auxp; 138 { 139 struct grf_softc *gp; 140 int maj; 141 142 gp = (struct grf_softc *)pdp; 143 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 144 145 /* 146 * find our major device number 147 */ 148 for(maj = 0; maj < nchrdev; maj++) 149 if (cdevsw[maj].d_open == grfopen) 150 break; 151 152 gp->g_grfdev = makedev(maj, gp->g_unit); 153 if (dp != NULL) { 154 printf(": width %d height %d", gp->g_display.gd_dwidth, 155 gp->g_display.gd_dheight); 156 if (gp->g_display.gd_colors == 2) 157 printf(" monochrome\n"); 158 else 159 printf(" colors %d\n", gp->g_display.gd_colors); 160 } 161 162 /* 163 * try and attach an ite 164 */ 165 amiga_config_found(cfdata, dp, gp, grfprint); 166 } 167 168 int 169 grfprint(auxp, pnp) 170 void *auxp; 171 const char *pnp; 172 { 173 if (pnp) 174 printf("ite at %s", pnp); 175 return(UNCONF); 176 } 177 178 /*ARGSUSED*/ 179 int 180 grfopen(dev, flags, devtype, p) 181 dev_t dev; 182 int flags, devtype; 183 struct proc *p; 184 { 185 struct grf_softc *gp; 186 187 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 188 return(ENXIO); 189 190 if ((gp->g_flags & GF_ALIVE) == 0) 191 return(ENXIO); 192 193 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 194 return(EBUSY); 195 196 return(0); 197 } 198 199 /*ARGSUSED*/ 200 int 201 grfclose(dev, flags, mode, p) 202 dev_t dev; 203 int flags; 204 int mode; 205 struct proc *p; 206 { 207 struct grf_softc *gp; 208 209 gp = grfsp[GRFUNIT(dev)]; 210 (void)grfoff(dev); 211 gp->g_flags &= GF_ALIVE; 212 return(0); 213 } 214 215 /*ARGSUSED*/ 216 int 217 grfioctl(dev, cmd, data, flag, p) 218 dev_t dev; 219 u_long cmd; 220 caddr_t data; 221 int flag; 222 struct proc *p; 223 { 224 struct grf_softc *gp; 225 int error; 226 227 gp = grfsp[GRFUNIT(dev)]; 228 error = 0; 229 230 switch (cmd) { 231 case OGRFIOCGINFO: 232 /* argl.. no bank-member.. */ 233 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 234 break; 235 case GRFIOCGINFO: 236 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 237 break; 238 case GRFIOCON: 239 error = grfon(dev); 240 break; 241 case GRFIOCOFF: 242 error = grfoff(dev); 243 break; 244 case GRFIOCSINFO: 245 error = grfsinfo(dev, (struct grfdyninfo *) data); 246 break; 247 case GRFGETVMODE: 248 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 249 case GRFSETVMODE: 250 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 251 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 252 ite_reinit(gp->g_itedev); 253 break; 254 case GRFGETNUMVM: 255 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 256 /* 257 * these are all hardware dependant, and have to be resolved 258 * in the respective driver. 259 */ 260 case GRFIOCPUTCMAP: 261 case GRFIOCGETCMAP: 262 case GRFIOCSSPRITEPOS: 263 case GRFIOCGSPRITEPOS: 264 case GRFIOCSSPRITEINF: 265 case GRFIOCGSPRITEINF: 266 case GRFIOCGSPRITEMAX: 267 case GRFIOCBITBLT: 268 case GRFIOCSETMON: 269 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 270 Amiga. 15/11/94 ill */ 271 /* 272 * We need the minor dev number to get the overlay/image 273 * information for grf_ul. 274 */ 275 return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev)); 276 277 case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 278 case FBIOSVIDEO: 279 error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev); 280 if (!error) 281 gp->g_blank = *(int *)data; 282 return (error); 283 284 case FBIOGVIDEO: 285 *(int *)data = gp->g_blank; 286 return (0); 287 288 default: 289 #if NVIEW > 0 290 /* 291 * check to see whether it's a command recognized by the 292 * view code if the unit is 0 293 * XXX 294 */ 295 if (GRFUNIT(dev) == 0) 296 return(viewioctl(dev, cmd, data, flag, p)); 297 #endif 298 error = EINVAL; 299 break; 300 301 } 302 return(error); 303 } 304 305 /*ARGSUSED*/ 306 int 307 grfpoll(dev, events, p) 308 dev_t dev; 309 int events; 310 struct proc *p; 311 { 312 return(events & (POLLOUT | POLLWRNORM)); 313 } 314 315 /* 316 * map the contents of a graphics display card into process' 317 * memory space. 318 */ 319 paddr_t 320 grfmmap(dev, off, prot) 321 dev_t dev; 322 off_t off; 323 int prot; 324 { 325 struct grf_softc *gp; 326 struct grfinfo *gi; 327 328 gp = grfsp[GRFUNIT(dev)]; 329 gi = &gp->g_display; 330 331 /* 332 * control registers 333 */ 334 if (off >= 0 && off < gi->gd_regsize) 335 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 336 337 /* 338 * frame buffer 339 */ 340 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 341 off -= gi->gd_regsize; 342 #ifdef BANKEDDEVPAGER 343 if (gi->gd_bank_size) 344 off %= gi->gd_bank_size; 345 #endif 346 return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT); 347 } 348 /* bogus */ 349 return(-1); 350 } 351 352 int 353 grfon(dev) 354 dev_t dev; 355 { 356 struct grf_softc *gp; 357 358 gp = grfsp[GRFUNIT(dev)]; 359 360 if (gp->g_flags & GF_GRFON) 361 return(0); 362 363 gp->g_flags |= GF_GRFON; 364 if (gp->g_itedev != NODEV) 365 ite_off(gp->g_itedev, 3); 366 367 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 368 NULL, 0, 0)); 369 } 370 371 int 372 grfoff(dev) 373 dev_t dev; 374 { 375 struct grf_softc *gp; 376 int error; 377 378 gp = grfsp[GRFUNIT(dev)]; 379 380 if ((gp->g_flags & GF_GRFON) == 0) 381 return(0); 382 383 gp->g_flags &= ~GF_GRFON; 384 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 385 NULL, 0, 0); 386 387 /* 388 * Closely tied together no X's 389 */ 390 if (gp->g_itedev != NODEV) 391 ite_on(gp->g_itedev, 2); 392 393 return(error); 394 } 395 396 int 397 grfsinfo(dev, dyninfo) 398 dev_t dev; 399 struct grfdyninfo *dyninfo; 400 { 401 struct grf_softc *gp; 402 int error; 403 404 gp = grfsp[GRFUNIT(dev)]; 405 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 406 407 /* 408 * Closely tied together no X's 409 */ 410 if (gp->g_itedev != NODEV) 411 ite_reinit(gp->g_itedev); 412 return(error); 413 } 414 415 #ifdef BANKEDDEVPAGER 416 417 int 418 grfbanked_get (dev, off, prot) 419 dev_t dev; 420 off_t off; 421 int prot; 422 { 423 struct grf_softc *gp; 424 struct grfinfo *gi; 425 int error, bank; 426 427 gp = grfsp[GRFUNIT(dev)]; 428 gi = &gp->g_display; 429 430 off -= gi->gd_regsize; 431 if (off < 0 || off >= gi->gd_fbsize) 432 return -1; 433 434 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 435 return error ? -1 : bank; 436 } 437 438 int 439 grfbanked_cur (dev) 440 dev_t dev; 441 { 442 struct grf_softc *gp; 443 int error, bank; 444 445 gp = grfsp[GRFUNIT(dev)]; 446 447 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank, 0, 0); 448 return(error ? -1 : bank); 449 } 450 451 int 452 grfbanked_set (dev, bank) 453 dev_t dev; 454 int bank; 455 { 456 struct grf_softc *gp; 457 458 gp = grfsp[GRFUNIT(dev)]; 459 return(gp->g_mode(gp, GM_GRFSETBANK, &bank, 0, 0) ? -1 : 0); 460 } 461 462 #endif /* BANKEDDEVPAGER */ 463 #endif /* NGRF > 0 */ 464
Indexes created Thu Sep 25 16:09:42 GMT 2025