grf.c revision 1.20
1 /* $NetBSD: grf.c,v 1.20 1995/04/23 16:20:49 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 "grf.h" 73 #if NGRF > 0 74 75 #include "ite.h" 76 #if NITE == 0 77 #define ite_on(u,f) 78 #define ite_off(u,f) 79 #define ite_reinit(d) 80 #endif 81 82 int grfopen __P((dev_t, int, int, struct proc *)); 83 int grfclose __P((dev_t, int)); 84 int grfioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 85 int grfselect __P((dev_t, int)); 86 int grfmmap __P((dev_t, int, int)); 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 *, char *)); 100 /* 101 * pointers to grf drivers device structs 102 */ 103 struct grf_softc *grfsp[NGRF]; 104 105 106 struct cfdriver grfcd = { 107 NULL, "grf", (cfmatch_t)grfmatch, grfattach, DV_DULL, 108 sizeof(struct device), NULL, 0 }; 109 110 /* 111 * only used in console init. 112 */ 113 static struct cfdata *cfdata; 114 115 /* 116 * match if the unit of grf matches its perspective 117 * low level board driver. 118 */ 119 int 120 grfmatch(pdp, cfp, auxp) 121 struct device *pdp; 122 struct cfdata *cfp; 123 void *auxp; 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 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) 190 return(ENXIO); 191 192 gp = grfsp[GRFUNIT(dev)]; 193 194 if ((gp->g_flags & GF_ALIVE) == 0) 195 return(ENXIO); 196 197 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 198 return(EBUSY); 199 200 return(0); 201 } 202 203 /*ARGSUSED*/ 204 int 205 grfclose(dev, flags) 206 dev_t dev; 207 int flags; 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)); 251 case GRFSETVMODE: 252 error = gp->g_mode(gp, GM_GRFSETVMODE, data); 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)); 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 return(gp->g_mode(gp, GM_GRFIOCTL, cmd, data)); 274 default: 275 /* 276 * check to see whether it's a command recognized by the 277 * view code if the unit is 0 278 * XXX 279 */ 280 if (GRFUNIT(dev) == 0) 281 return(viewioctl(dev, cmd, data, flag, p)); 282 error = EINVAL; 283 break; 284 285 } 286 return(error); 287 } 288 289 /*ARGSUSED*/ 290 int 291 grfselect(dev, rw) 292 dev_t dev; 293 int rw; 294 { 295 if (rw == FREAD) 296 return(0); 297 return(1); 298 } 299 300 /* 301 * map the contents of a graphics display card into process' 302 * memory space. 303 */ 304 int 305 grfmmap(dev, off, prot) 306 dev_t dev; 307 int off, prot; 308 { 309 struct grf_softc *gp; 310 struct grfinfo *gi; 311 312 gp = grfsp[GRFUNIT(dev)]; 313 gi = &gp->g_display; 314 315 /* 316 * control registers 317 */ 318 if (off >= 0 && off < gi->gd_regsize) 319 return(((u_int)gi->gd_regaddr + off) >> PGSHIFT); 320 321 /* 322 * frame buffer 323 */ 324 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 325 off -= gi->gd_regsize; 326 #ifdef BANKEDDEVPAGER 327 if (gi->gd_bank_size) 328 off %= gi->gd_bank_size; 329 #endif 330 return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 331 } 332 /* bogus */ 333 return(-1); 334 } 335 336 int 337 grfon(dev) 338 dev_t dev; 339 { 340 struct grf_softc *gp; 341 342 gp = grfsp[GRFUNIT(dev)]; 343 344 if (gp->g_flags & GF_GRFON) 345 return(0); 346 347 gp->g_flags |= GF_GRFON; 348 if (gp->g_itedev != NODEV) 349 ite_off(gp->g_itedev, 3); 350 351 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON)); 352 } 353 354 int 355 grfoff(dev) 356 dev_t dev; 357 { 358 struct grf_softc *gp; 359 int error; 360 361 gp = grfsp[GRFUNIT(dev)]; 362 363 if ((gp->g_flags & GF_GRFON) == 0) 364 return(0); 365 366 gp->g_flags &= ~GF_GRFON; 367 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF); 368 369 /* 370 * Closely tied together no X's 371 */ 372 if (gp->g_itedev != NODEV) 373 ite_on(gp->g_itedev, 2); 374 375 return(error); 376 } 377 378 int 379 grfsinfo(dev, dyninfo) 380 dev_t dev; 381 struct grfdyninfo *dyninfo; 382 { 383 struct grf_softc *gp; 384 int error; 385 386 gp = grfsp[GRFUNIT(dev)]; 387 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo); 388 389 /* 390 * Closely tied together no X's 391 */ 392 if (gp->g_itedev != NODEV) 393 ite_reinit(gp->g_itedev); 394 return(error); 395 } 396 397 #ifdef BANKEDDEVPAGER 398 399 int 400 grfbanked_get (dev, off, prot) 401 dev_t dev; 402 off_t off; 403 int prot; 404 { 405 struct grf_softc *gp; 406 struct grfinfo *gi; 407 int error, bank; 408 409 gp = grfsp[GRFUNIT(dev)]; 410 gi = &gp->g_display; 411 412 off -= gi->gd_regsize; 413 if (off < 0 || off >= gi->gd_fbsize) 414 return -1; 415 416 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 417 return error ? -1 : bank; 418 } 419 420 int 421 grfbanked_cur (dev) 422 dev_t dev; 423 { 424 struct grf_softc *gp; 425 int error, bank; 426 427 gp = grfsp[GRFUNIT(dev)]; 428 429 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank); 430 return(error ? -1 : bank); 431 } 432 433 int 434 grfbanked_set (dev, bank) 435 dev_t dev; 436 int bank; 437 { 438 struct grf_softc *gp; 439 440 gp = grfsp[GRFUNIT(dev)]; 441 return(gp->g_mode(gp, GM_GRFSETBANK, bank) ? -1 : 0); 442 } 443 444 #endif /* BANKEDDEVPAGER */ 445 #endif /* NGRF > 0 */ 446
Indexes created Wed Sep 24 15:09:51 GMT 2025