grf.c revision 1.11
1 /* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: Utah $Hdr: grf.c 1.31 91/01/21$ 39 * 40 * @(#)grf.c 7.8 (Berkeley) 5/7/91 41 * $Id: grf.c,v 1.11 1994/05/08 05:53:03 chopps Exp $ 42 */ 43 44 /* 45 * Graphics display driver for the Amiga 46 * This is the hardware-independent portion of the driver. 47 * Hardware access is through the grf_softc->g_mode routine. 48 */ 49 50 #include <sys/param.h> 51 #include <sys/proc.h> 52 #include <sys/ioctl.h> 53 #include <sys/device.h> 54 #include <sys/file.h> 55 #include <sys/malloc.h> 56 #include <sys/conf.h> 57 #include <sys/systm.h> 58 #include <sys/vnode.h> 59 #include <sys/mman.h> 60 #include <vm/vm.h> 61 #include <vm/vm_kern.h> 62 #include <vm/vm_page.h> 63 #include <vm/vm_pager.h> 64 #include <machine/cpu.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 71 #include "grf.h" 72 #if NGRF > 0 73 74 #include "ite.h" 75 #if NITE == 0 76 #define ite_on(u,f) 77 #define ite_off(u,f) 78 #define ite_reinit(d) 79 #endif 80 81 int grfopen __P((dev_t, int, int, struct proc *)); 82 int grfclose __P((dev_t, int)); 83 int grfioctl __P((dev_t, int, caddr_t, int, struct proc *)); 84 int grfselect __P((dev_t, int)); 85 int grfmap __P((dev_t, int, int)); 86 87 int grfon __P((dev_t)); 88 int grfoff __P((dev_t)); 89 int grfsinfo __P((dev_t, struct grfdyninfo *)); 90 #ifdef BANKEDDEVPAGER 91 int grfbanked_get __P((dev_t, off_t, int)); 92 int grfbanked_cur __P((dev_t)); 93 int grfbanked_set __P((dev_t, int)); 94 #endif 95 96 void grfattach __P((struct device *, struct device *, void *)); 97 int grfmatch __P((struct device *, struct cfdata *, void *)); 98 int grfprint __P((void *, char *)); 99 /* 100 * pointers to grf drivers device structs 101 */ 102 struct grf_softc *grfsp[NGRF]; 103 104 105 struct cfdriver grfcd = { 106 NULL, "grf", grfmatch, grfattach, DV_DULL, 107 sizeof(struct device), NULL, 0 }; 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 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 125 return(0); 126 cfdata = cfp; 127 return(1); 128 } 129 130 /* 131 * attach.. plug pointer in and print some info. 132 * then try and attach an ite to us. note: dp is NULL 133 * durring console init. 134 */ 135 void 136 grfattach(pdp, dp, auxp) 137 struct device *pdp, *dp; 138 void *auxp; 139 { 140 struct grf_softc *gp; 141 int maj; 142 143 gp = (struct grf_softc *)pdp; 144 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 145 146 /* 147 * find our major device number 148 */ 149 for(maj = 0; maj < nchrdev; maj++) 150 if (cdevsw[maj].d_open == grfopen) 151 break; 152 153 gp->g_grfdev = makedev(maj, gp->g_unit); 154 if (dp != NULL) { 155 printf(" %d x %d", gp->g_display.gd_dwidth, 156 gp->g_display.gd_dheight); 157 if (gp->g_display.gd_colors == 2) 158 printf(", monochrome\n"); 159 else 160 printf(", %d colors\n", gp->g_display.gd_colors); 161 } 162 163 /* 164 * try and attach an ite 165 */ 166 amiga_config_found(cfdata, dp, gp, grfprint); 167 } 168 169 int 170 grfprint(auxp, pnp) 171 void *auxp; 172 char *pnp; 173 { 174 if (pnp) 175 printf("ite%d at %s", ((struct grf_softc *)auxp)->g_unit, 176 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 int cmd, flag; 222 caddr_t data; 223 struct proc *p; 224 { 225 struct grf_softc *gp; 226 int error; 227 228 gp = grfsp[GRFUNIT(dev)]; 229 error = 0; 230 231 switch (cmd) { 232 case OGRFIOCGINFO: 233 /* argl.. no bank-member.. */ 234 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 235 break; 236 case GRFIOCGINFO: 237 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 238 break; 239 case GRFIOCON: 240 error = grfon(dev); 241 break; 242 case GRFIOCOFF: 243 error = grfoff(dev); 244 break; 245 case GRFIOCSINFO: 246 error = grfsinfo(dev, (struct grfdyninfo *) data); 247 break; 248 case GRFGETVMODE: 249 return(gp->g_mode(gp, GM_GRFGETVMODE, data)); 250 case GRFSETVMODE: 251 error = gp->g_mode(gp, GM_GRFSETVMODE, data); 252 if (error == 0 && gp->g_itedev) 253 ite_reinit(gp->g_itedev); 254 break; 255 case GRFGETNUMVM: 256 return(gp->g_mode(gp, GM_GRFGETNUMVM, data)); 257 /* 258 * these are all hardware dependant, and have to be resolved 259 * in the respective driver. 260 */ 261 case GRFIOCPUTCMAP: 262 case GRFIOCGETCMAP: 263 case GRFIOCSSPRITEPOS: 264 case GRFIOCGSPRITEPOS: 265 case GRFIOCSSPRITEINF: 266 case GRFIOCGSPRITEINF: 267 case GRFIOCGSPRITEMAX: 268 return(gp->g_mode(gp, GM_GRFIOCTL, cmd, data)); 269 default: 270 /* 271 * check to see whether it's a command recognized by the 272 * view code if the unit is 0 273 * XXX 274 */ 275 if (GRFUNIT(dev) == 0) 276 return(viewioctl(dev, cmd, data, flag, p)); 277 error = EINVAL; 278 break; 279 280 } 281 return(error); 282 } 283 284 /*ARGSUSED*/ 285 int 286 grfselect(dev, rw) 287 dev_t dev; 288 int rw; 289 { 290 if (rw == FREAD) 291 return(0); 292 return(1); 293 } 294 295 /* 296 * map the contents of a graphics display card into process' 297 * memory space. 298 */ 299 int 300 grfmap(dev, off, prot) 301 dev_t dev; 302 int off, prot; 303 { 304 struct grf_softc *gp; 305 struct grfinfo *gi; 306 307 gp = grfsp[GRFUNIT(dev)]; 308 gi = &gp->g_display; 309 310 /* 311 * control registers 312 */ 313 if (off >= 0 && off < gi->gd_regsize) 314 return(((u_int)gi->gd_regaddr + off) >> PGSHIFT); 315 316 /* 317 * frame buffer 318 */ 319 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 320 off -= gi->gd_regsize; 321 #ifdef BANKEDDEVPAGER 322 if (gi->gd_bank_size) 323 off %= gi->gd_bank_size; 324 #endif 325 return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 326 } 327 /* bogus */ 328 return(-1); 329 } 330 331 int 332 grfon(dev) 333 dev_t dev; 334 { 335 struct grf_softc *gp; 336 337 gp = grfsp[GRFUNIT(dev)]; 338 339 if (gp->g_flags & GF_GRFON) 340 return(0); 341 342 gp->g_flags |= GF_GRFON; 343 if (gp->g_itedev != NODEV) 344 ite_off(gp->g_itedev, 3); 345 346 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON)); 347 } 348 349 int 350 grfoff(dev) 351 dev_t dev; 352 { 353 struct grf_softc *gp; 354 int error; 355 356 gp = grfsp[GRFUNIT(dev)]; 357 358 if ((gp->g_flags & GF_GRFON) == 0) 359 return(0); 360 361 gp->g_flags &= ~GF_GRFON; 362 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF); 363 364 /* 365 * Closely tied together no X's 366 */ 367 if (gp->g_itedev != NODEV) 368 ite_on(gp->g_itedev, 2); 369 370 return(error); 371 } 372 373 int 374 grfsinfo(dev, dyninfo) 375 dev_t dev; 376 struct grfdyninfo *dyninfo; 377 { 378 struct grf_softc *gp; 379 int error; 380 381 gp = grfsp[GRFUNIT(dev)]; 382 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo); 383 384 /* 385 * Closely tied together no X's 386 */ 387 if (gp->g_itedev != NODEV) 388 ite_reinit(gp->g_itedev); 389 return(error); 390 } 391 392 #ifdef BANKEDDEVPAGER 393 394 int 395 grfbanked_get (dev, off, prot) 396 dev_t dev; 397 off_t off; 398 int prot; 399 { 400 struct grf_softc *gp; 401 struct grfinfo *gi; 402 int error, bank; 403 404 gp = grfsp[GRFUNIT(dev)]; 405 gi = &gp->g_display; 406 407 off -= gi->gd_regsize; 408 if (off < 0 || off >= gi->gd_fbsize) 409 return -1; 410 411 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 412 return error ? -1 : bank; 413 } 414 415 int 416 grfbanked_cur (dev) 417 dev_t dev; 418 { 419 struct grf_softc *gp; 420 int error, bank; 421 422 gp = grfsp[GRFUNIT(dev)]; 423 424 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank); 425 return(error ? -1 : bank); 426 } 427 428 int 429 grfbanked_set (dev, bank) 430 dev_t dev; 431 int bank; 432 { 433 struct grf_softc *gp; 434 435 gp = grfsp[GRFUNIT(dev)]; 436 return(gp->g_mode(gp, GM_GRFSETBANK, bank) ? -1 : 0); 437 } 438 439 #endif /* BANKEDDEVPAGER */ 440 #endif /* NGRF > 0 */ 441
Indexes created Fri Sep 26 20:09:58 GMT 2025