grf.c revision 1.25
1 /* $NetBSD: grf.c,v 1.25 1996/03/17 01:17:09 thorpej 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 *, void *, void *)); 101 int grfprint __P((void *, char *)); 102 /* 103 * pointers to grf drivers device structs 104 */ 105 struct grf_softc *grfsp[NGRF]; 106 107 struct cfattach grf_ca = { 108 sizeof(struct device), grfmatch, grfattach 109 }; 110 111 struct cfdriver grf_cd = { 112 NULL, "grf", DV_DULL, NULL, 0 113 }; 114 115 /* 116 * only used in console init. 117 */ 118 static struct cfdata *cfdata; 119 120 /* 121 * match if the unit of grf matches its perspective 122 * low level board driver. 123 */ 124 int 125 grfmatch(pdp, match, auxp) 126 struct device *pdp; 127 void *match, *auxp; 128 { 129 struct cfdata *cfp = match; 130 131 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 132 return(0); 133 cfdata = cfp; 134 return(1); 135 } 136 137 /* 138 * attach.. plug pointer in and print some info. 139 * then try and attach an ite to us. note: dp is NULL 140 * durring console init. 141 */ 142 void 143 grfattach(pdp, dp, auxp) 144 struct device *pdp, *dp; 145 void *auxp; 146 { 147 struct grf_softc *gp; 148 int maj; 149 150 gp = (struct grf_softc *)pdp; 151 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 152 153 /* 154 * find our major device number 155 */ 156 for(maj = 0; maj < nchrdev; maj++) 157 if (cdevsw[maj].d_open == grfopen) 158 break; 159 160 gp->g_grfdev = makedev(maj, gp->g_unit); 161 if (dp != NULL) { 162 printf(": width %d height %d", gp->g_display.gd_dwidth, 163 gp->g_display.gd_dheight); 164 if (gp->g_display.gd_colors == 2) 165 printf(" monochrome\n"); 166 else 167 printf(" colors %d\n", gp->g_display.gd_colors); 168 } 169 170 /* 171 * try and attach an ite 172 */ 173 amiga_config_found(cfdata, dp, gp, grfprint); 174 } 175 176 int 177 grfprint(auxp, pnp) 178 void *auxp; 179 char *pnp; 180 { 181 if (pnp) 182 printf("ite at %s", pnp); 183 return(UNCONF); 184 } 185 186 /*ARGSUSED*/ 187 int 188 grfopen(dev, flags, devtype, p) 189 dev_t dev; 190 int flags, devtype; 191 struct proc *p; 192 { 193 struct grf_softc *gp; 194 195 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 196 return(ENXIO); 197 198 if ((gp->g_flags & GF_ALIVE) == 0) 199 return(ENXIO); 200 201 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 202 return(EBUSY); 203 204 return(0); 205 } 206 207 /*ARGSUSED*/ 208 int 209 grfclose(dev, flags) 210 dev_t dev; 211 int flags; 212 { 213 struct grf_softc *gp; 214 215 gp = grfsp[GRFUNIT(dev)]; 216 (void)grfoff(dev); 217 gp->g_flags &= GF_ALIVE; 218 return(0); 219 } 220 221 /*ARGSUSED*/ 222 int 223 grfioctl(dev, cmd, data, flag, p) 224 dev_t dev; 225 u_long cmd; 226 caddr_t data; 227 int flag; 228 struct proc *p; 229 { 230 struct grf_softc *gp; 231 int error; 232 233 gp = grfsp[GRFUNIT(dev)]; 234 error = 0; 235 236 switch (cmd) { 237 case OGRFIOCGINFO: 238 /* argl.. no bank-member.. */ 239 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 240 break; 241 case GRFIOCGINFO: 242 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 243 break; 244 case GRFIOCON: 245 error = grfon(dev); 246 break; 247 case GRFIOCOFF: 248 error = grfoff(dev); 249 break; 250 case GRFIOCSINFO: 251 error = grfsinfo(dev, (struct grfdyninfo *) data); 252 break; 253 case GRFGETVMODE: 254 return(gp->g_mode(gp, GM_GRFGETVMODE, data)); 255 case GRFSETVMODE: 256 error = gp->g_mode(gp, GM_GRFSETVMODE, data); 257 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 258 ite_reinit(gp->g_itedev); 259 break; 260 case GRFGETNUMVM: 261 return(gp->g_mode(gp, GM_GRFGETNUMVM, data)); 262 /* 263 * these are all hardware dependant, and have to be resolved 264 * in the respective driver. 265 */ 266 case GRFIOCPUTCMAP: 267 case GRFIOCGETCMAP: 268 case GRFIOCSSPRITEPOS: 269 case GRFIOCGSPRITEPOS: 270 case GRFIOCSSPRITEINF: 271 case GRFIOCGSPRITEINF: 272 case GRFIOCGSPRITEMAX: 273 case GRFIOCBITBLT: 274 case GRFIOCSETMON: 275 case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 276 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 277 Amiga. 15/11/94 ill */ 278 /* 279 * We need the minor dev number to get the overlay/image 280 * information for grf_ul. 281 */ 282 return(gp->g_mode(gp, GM_GRFIOCTL, cmd, data, dev)); 283 default: 284 #if NVIEW > 0 285 /* 286 * check to see whether it's a command recognized by the 287 * view code if the unit is 0 288 * XXX 289 */ 290 if (GRFUNIT(dev) == 0) 291 return(viewioctl(dev, cmd, data, flag, p)); 292 #endif 293 error = EINVAL; 294 break; 295 296 } 297 return(error); 298 } 299 300 /*ARGSUSED*/ 301 int 302 grfselect(dev, rw) 303 dev_t dev; 304 int rw; 305 { 306 if (rw == FREAD) 307 return(0); 308 return(1); 309 } 310 311 /* 312 * map the contents of a graphics display card into process' 313 * memory space. 314 */ 315 int 316 grfmmap(dev, off, prot) 317 dev_t dev; 318 int off, prot; 319 { 320 struct grf_softc *gp; 321 struct grfinfo *gi; 322 323 gp = grfsp[GRFUNIT(dev)]; 324 gi = &gp->g_display; 325 326 /* 327 * control registers 328 */ 329 if (off >= 0 && off < gi->gd_regsize) 330 return(((u_int)gi->gd_regaddr + off) >> PGSHIFT); 331 332 /* 333 * frame buffer 334 */ 335 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 336 off -= gi->gd_regsize; 337 #ifdef BANKEDDEVPAGER 338 if (gi->gd_bank_size) 339 off %= gi->gd_bank_size; 340 #endif 341 return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 342 } 343 /* bogus */ 344 return(-1); 345 } 346 347 int 348 grfon(dev) 349 dev_t dev; 350 { 351 struct grf_softc *gp; 352 353 gp = grfsp[GRFUNIT(dev)]; 354 355 if (gp->g_flags & GF_GRFON) 356 return(0); 357 358 gp->g_flags |= GF_GRFON; 359 if (gp->g_itedev != NODEV) 360 ite_off(gp->g_itedev, 3); 361 362 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON)); 363 } 364 365 int 366 grfoff(dev) 367 dev_t dev; 368 { 369 struct grf_softc *gp; 370 int error; 371 372 gp = grfsp[GRFUNIT(dev)]; 373 374 if ((gp->g_flags & GF_GRFON) == 0) 375 return(0); 376 377 gp->g_flags &= ~GF_GRFON; 378 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF); 379 380 /* 381 * Closely tied together no X's 382 */ 383 if (gp->g_itedev != NODEV) 384 ite_on(gp->g_itedev, 2); 385 386 return(error); 387 } 388 389 int 390 grfsinfo(dev, dyninfo) 391 dev_t dev; 392 struct grfdyninfo *dyninfo; 393 { 394 struct grf_softc *gp; 395 int error; 396 397 gp = grfsp[GRFUNIT(dev)]; 398 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo); 399 400 /* 401 * Closely tied together no X's 402 */ 403 if (gp->g_itedev != NODEV) 404 ite_reinit(gp->g_itedev); 405 return(error); 406 } 407 408 #ifdef BANKEDDEVPAGER 409 410 int 411 grfbanked_get (dev, off, prot) 412 dev_t dev; 413 off_t off; 414 int prot; 415 { 416 struct grf_softc *gp; 417 struct grfinfo *gi; 418 int error, bank; 419 420 gp = grfsp[GRFUNIT(dev)]; 421 gi = &gp->g_display; 422 423 off -= gi->gd_regsize; 424 if (off < 0 || off >= gi->gd_fbsize) 425 return -1; 426 427 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 428 return error ? -1 : bank; 429 } 430 431 int 432 grfbanked_cur (dev) 433 dev_t dev; 434 { 435 struct grf_softc *gp; 436 int error, bank; 437 438 gp = grfsp[GRFUNIT(dev)]; 439 440 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank); 441 return(error ? -1 : bank); 442 } 443 444 int 445 grfbanked_set (dev, bank) 446 dev_t dev; 447 int bank; 448 { 449 struct grf_softc *gp; 450 451 gp = grfsp[GRFUNIT(dev)]; 452 return(gp->g_mode(gp, GM_GRFSETBANK, bank) ? -1 : 0); 453 } 454 455 #endif /* BANKEDDEVPAGER */ 456 #endif /* NGRF > 0 */ 457
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