grf.c revision 1.35
1 /* $NetBSD: grf.c,v 1.35 2000/06/26 04:55:23 simonb 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 <vm/vm_kern.h> 63 #include <vm/vm_page.h> 64 #include <vm/vm_pager.h> 65 #include <machine/cpu.h> 66 #include <machine/fbio.h> 67 #include <amiga/amiga/color.h> /* DEBUG */ 68 #include <amiga/amiga/device.h> 69 #include <amiga/dev/grfioctl.h> 70 #include <amiga/dev/grfvar.h> 71 #include <amiga/dev/itevar.h> 72 #include <amiga/dev/viewioctl.h> 73 74 #include <sys/conf.h> 75 #include <machine/conf.h> 76 77 #include "view.h" 78 #include "grf.h" 79 80 #if NGRF > 0 81 #include "ite.h" 82 #if NITE == 0 83 #define ite_on(u,f) 84 #define ite_off(u,f) 85 #define ite_reinit(d) 86 #endif 87 88 int grfon __P((dev_t)); 89 int grfoff __P((dev_t)); 90 int grfsinfo __P((dev_t, struct grfdyninfo *)); 91 #ifdef BANKEDDEVPAGER 92 int grfbanked_get __P((dev_t, off_t, int)); 93 int grfbanked_cur __P((dev_t)); 94 int grfbanked_set __P((dev_t, int)); 95 #endif 96 97 void grfattach __P((struct device *, struct device *, void *)); 98 int grfmatch __P((struct device *, struct cfdata *, void *)); 99 int grfprint __P((void *, const char *)); 100 /* 101 * pointers to grf drivers device structs 102 */ 103 struct grf_softc *grfsp[NGRF]; 104 105 struct cfattach grf_ca = { 106 sizeof(struct device), grfmatch, grfattach 107 }; 108 109 /* 110 * only used in console init. 111 */ 112 static struct cfdata *cfdata; 113 114 /* 115 * match if the unit of grf matches its perspective 116 * low level board driver. 117 */ 118 int 119 grfmatch(pdp, cfp, auxp) 120 struct device *pdp; 121 struct cfdata *cfp; 122 void *auxp; 123 { 124 125 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 126 return(0); 127 cfdata = cfp; 128 return(1); 129 } 130 131 /* 132 * attach.. plug pointer in and print some info. 133 * then try and attach an ite to us. note: dp is NULL 134 * durring console init. 135 */ 136 void 137 grfattach(pdp, dp, auxp) 138 struct device *pdp, *dp; 139 void *auxp; 140 { 141 struct grf_softc *gp; 142 int maj; 143 144 gp = (struct grf_softc *)pdp; 145 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 146 147 /* 148 * find our major device number 149 */ 150 for(maj = 0; maj < nchrdev; maj++) 151 if (cdevsw[maj].d_open == grfopen) 152 break; 153 154 gp->g_grfdev = makedev(maj, gp->g_unit); 155 if (dp != NULL) { 156 printf(": width %d height %d", gp->g_display.gd_dwidth, 157 gp->g_display.gd_dheight); 158 if (gp->g_display.gd_colors == 2) 159 printf(" monochrome\n"); 160 else 161 printf(" colors %d\n", gp->g_display.gd_colors); 162 } 163 164 /* 165 * try and attach an ite 166 */ 167 amiga_config_found(cfdata, dp, gp, grfprint); 168 } 169 170 int 171 grfprint(auxp, pnp) 172 void *auxp; 173 const char *pnp; 174 { 175 if (pnp) 176 printf("ite at %s", pnp); 177 return(UNCONF); 178 } 179 180 /*ARGSUSED*/ 181 int 182 grfopen(dev, flags, devtype, p) 183 dev_t dev; 184 int flags, devtype; 185 struct proc *p; 186 { 187 struct grf_softc *gp; 188 189 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 190 return(ENXIO); 191 192 if ((gp->g_flags & GF_ALIVE) == 0) 193 return(ENXIO); 194 195 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 196 return(EBUSY); 197 198 return(0); 199 } 200 201 /*ARGSUSED*/ 202 int 203 grfclose(dev, flags, mode, p) 204 dev_t dev; 205 int flags; 206 int mode; 207 struct proc *p; 208 { 209 struct grf_softc *gp; 210 211 gp = grfsp[GRFUNIT(dev)]; 212 (void)grfoff(dev); 213 gp->g_flags &= GF_ALIVE; 214 return(0); 215 } 216 217 /*ARGSUSED*/ 218 int 219 grfioctl(dev, cmd, data, flag, p) 220 dev_t dev; 221 u_long cmd; 222 caddr_t data; 223 int flag; 224 struct proc *p; 225 { 226 struct grf_softc *gp; 227 int error; 228 229 gp = grfsp[GRFUNIT(dev)]; 230 error = 0; 231 232 switch (cmd) { 233 case OGRFIOCGINFO: 234 /* argl.. no bank-member.. */ 235 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 236 break; 237 case GRFIOCGINFO: 238 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 239 break; 240 case GRFIOCON: 241 error = grfon(dev); 242 break; 243 case GRFIOCOFF: 244 error = grfoff(dev); 245 break; 246 case GRFIOCSINFO: 247 error = grfsinfo(dev, (struct grfdyninfo *) data); 248 break; 249 case GRFGETVMODE: 250 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 251 case GRFSETVMODE: 252 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 253 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 254 ite_reinit(gp->g_itedev); 255 break; 256 case GRFGETNUMVM: 257 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 258 /* 259 * these are all hardware dependant, and have to be resolved 260 * in the respective driver. 261 */ 262 case GRFIOCPUTCMAP: 263 case GRFIOCGETCMAP: 264 case GRFIOCSSPRITEPOS: 265 case GRFIOCGSPRITEPOS: 266 case GRFIOCSSPRITEINF: 267 case GRFIOCGSPRITEINF: 268 case GRFIOCGSPRITEMAX: 269 case GRFIOCBITBLT: 270 case GRFIOCSETMON: 271 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 272 Amiga. 15/11/94 ill */ 273 /* 274 * We need the minor dev number to get the overlay/image 275 * information for grf_ul. 276 */ 277 return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev)); 278 279 case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 280 case FBIOSVIDEO: 281 error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev); 282 if (!error) 283 gp->g_blank = *(int *)data; 284 return (error); 285 286 case FBIOGVIDEO: 287 *(int *)data = gp->g_blank; 288 return (0); 289 290 default: 291 #if NVIEW > 0 292 /* 293 * check to see whether it's a command recognized by the 294 * view code if the unit is 0 295 * XXX 296 */ 297 if (GRFUNIT(dev) == 0) 298 return(viewioctl(dev, cmd, data, flag, p)); 299 #endif 300 error = EINVAL; 301 break; 302 303 } 304 return(error); 305 } 306 307 /*ARGSUSED*/ 308 int 309 grfpoll(dev, events, p) 310 dev_t dev; 311 int events; 312 struct proc *p; 313 { 314 return(events & (POLLOUT | POLLWRNORM)); 315 } 316 317 /* 318 * map the contents of a graphics display card into process' 319 * memory space. 320 */ 321 paddr_t 322 grfmmap(dev, off, prot) 323 dev_t dev; 324 off_t off; 325 int prot; 326 { 327 struct grf_softc *gp; 328 struct grfinfo *gi; 329 330 gp = grfsp[GRFUNIT(dev)]; 331 gi = &gp->g_display; 332 333 /* 334 * control registers 335 */ 336 if (off >= 0 && off < gi->gd_regsize) 337 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 338 339 /* 340 * frame buffer 341 */ 342 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 343 off -= gi->gd_regsize; 344 #ifdef BANKEDDEVPAGER 345 if (gi->gd_bank_size) 346 off %= gi->gd_bank_size; 347 #endif 348 return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT); 349 } 350 /* bogus */ 351 return(-1); 352 } 353 354 int 355 grfon(dev) 356 dev_t dev; 357 { 358 struct grf_softc *gp; 359 360 gp = grfsp[GRFUNIT(dev)]; 361 362 if (gp->g_flags & GF_GRFON) 363 return(0); 364 365 gp->g_flags |= GF_GRFON; 366 if (gp->g_itedev != NODEV) 367 ite_off(gp->g_itedev, 3); 368 369 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 370 NULL, 0, 0)); 371 } 372 373 int 374 grfoff(dev) 375 dev_t dev; 376 { 377 struct grf_softc *gp; 378 int error; 379 380 gp = grfsp[GRFUNIT(dev)]; 381 382 if ((gp->g_flags & GF_GRFON) == 0) 383 return(0); 384 385 gp->g_flags &= ~GF_GRFON; 386 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 387 NULL, 0, 0); 388 389 /* 390 * Closely tied together no X's 391 */ 392 if (gp->g_itedev != NODEV) 393 ite_on(gp->g_itedev, 2); 394 395 return(error); 396 } 397 398 int 399 grfsinfo(dev, dyninfo) 400 dev_t dev; 401 struct grfdyninfo *dyninfo; 402 { 403 struct grf_softc *gp; 404 int error; 405 406 gp = grfsp[GRFUNIT(dev)]; 407 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 408 409 /* 410 * Closely tied together no X's 411 */ 412 if (gp->g_itedev != NODEV) 413 ite_reinit(gp->g_itedev); 414 return(error); 415 } 416 417 #ifdef BANKEDDEVPAGER 418 419 int 420 grfbanked_get (dev, off, prot) 421 dev_t dev; 422 off_t off; 423 int prot; 424 { 425 struct grf_softc *gp; 426 struct grfinfo *gi; 427 int error, bank; 428 429 gp = grfsp[GRFUNIT(dev)]; 430 gi = &gp->g_display; 431 432 off -= gi->gd_regsize; 433 if (off < 0 || off >= gi->gd_fbsize) 434 return -1; 435 436 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 437 return error ? -1 : bank; 438 } 439 440 int 441 grfbanked_cur (dev) 442 dev_t dev; 443 { 444 struct grf_softc *gp; 445 int error, bank; 446 447 gp = grfsp[GRFUNIT(dev)]; 448 449 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank, 0, 0); 450 return(error ? -1 : bank); 451 } 452 453 int 454 grfbanked_set (dev, bank) 455 dev_t dev; 456 int bank; 457 { 458 struct grf_softc *gp; 459 460 gp = grfsp[GRFUNIT(dev)]; 461 return(gp->g_mode(gp, GM_GRFSETBANK, &bank, 0, 0) ? -1 : 0); 462 } 463 464 #endif /* BANKEDDEVPAGER */ 465 #endif /* NGRF > 0 */ 466
Indexes created Wed Sep 24 15:09:51 GMT 2025