grf.c revision 1.24
1 /* $NetBSD: grf.c,v 1.24 1995/11/30 00:56:55 jtc 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 *, struct cfdata *, void *)); 101 int grfprint __P((void *, char *)); 102 /* 103 * pointers to grf drivers device structs 104 */ 105 struct grf_softc *grfsp[NGRF]; 106 107 108 struct cfdriver grfcd = { 109 NULL, "grf", (cfmatch_t)grfmatch, grfattach, DV_DULL, 110 sizeof(struct device), NULL, 0 }; 111 112 /* 113 * only used in console init. 114 */ 115 static struct cfdata *cfdata; 116 117 /* 118 * match if the unit of grf matches its perspective 119 * low level board driver. 120 */ 121 int 122 grfmatch(pdp, cfp, auxp) 123 struct device *pdp; 124 struct cfdata *cfp; 125 void *auxp; 126 { 127 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 128 return(0); 129 cfdata = cfp; 130 return(1); 131 } 132 133 /* 134 * attach.. plug pointer in and print some info. 135 * then try and attach an ite to us. note: dp is NULL 136 * durring console init. 137 */ 138 void 139 grfattach(pdp, dp, auxp) 140 struct device *pdp, *dp; 141 void *auxp; 142 { 143 struct grf_softc *gp; 144 int maj; 145 146 gp = (struct grf_softc *)pdp; 147 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 148 149 /* 150 * find our major device number 151 */ 152 for(maj = 0; maj < nchrdev; maj++) 153 if (cdevsw[maj].d_open == grfopen) 154 break; 155 156 gp->g_grfdev = makedev(maj, gp->g_unit); 157 if (dp != NULL) { 158 printf(": width %d height %d", gp->g_display.gd_dwidth, 159 gp->g_display.gd_dheight); 160 if (gp->g_display.gd_colors == 2) 161 printf(" monochrome\n"); 162 else 163 printf(" colors %d\n", gp->g_display.gd_colors); 164 } 165 166 /* 167 * try and attach an ite 168 */ 169 amiga_config_found(cfdata, dp, gp, grfprint); 170 } 171 172 int 173 grfprint(auxp, pnp) 174 void *auxp; 175 char *pnp; 176 { 177 if (pnp) 178 printf("ite at %s", pnp); 179 return(UNCONF); 180 } 181 182 /*ARGSUSED*/ 183 int 184 grfopen(dev, flags, devtype, p) 185 dev_t dev; 186 int flags, devtype; 187 struct proc *p; 188 { 189 struct grf_softc *gp; 190 191 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 192 return(ENXIO); 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 GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 272 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 273 Amiga. 15/11/94 ill */ 274 /* 275 * We need the minor dev number to get the overlay/image 276 * information for grf_ul. 277 */ 278 return(gp->g_mode(gp, GM_GRFIOCTL, cmd, data, dev)); 279 default: 280 #if NVIEW > 0 281 /* 282 * check to see whether it's a command recognized by the 283 * view code if the unit is 0 284 * XXX 285 */ 286 if (GRFUNIT(dev) == 0) 287 return(viewioctl(dev, cmd, data, flag, p)); 288 #endif 289 error = EINVAL; 290 break; 291 292 } 293 return(error); 294 } 295 296 /*ARGSUSED*/ 297 int 298 grfselect(dev, rw) 299 dev_t dev; 300 int rw; 301 { 302 if (rw == FREAD) 303 return(0); 304 return(1); 305 } 306 307 /* 308 * map the contents of a graphics display card into process' 309 * memory space. 310 */ 311 int 312 grfmmap(dev, off, prot) 313 dev_t dev; 314 int off, prot; 315 { 316 struct grf_softc *gp; 317 struct grfinfo *gi; 318 319 gp = grfsp[GRFUNIT(dev)]; 320 gi = &gp->g_display; 321 322 /* 323 * control registers 324 */ 325 if (off >= 0 && off < gi->gd_regsize) 326 return(((u_int)gi->gd_regaddr + off) >> PGSHIFT); 327 328 /* 329 * frame buffer 330 */ 331 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 332 off -= gi->gd_regsize; 333 #ifdef BANKEDDEVPAGER 334 if (gi->gd_bank_size) 335 off %= gi->gd_bank_size; 336 #endif 337 return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 338 } 339 /* bogus */ 340 return(-1); 341 } 342 343 int 344 grfon(dev) 345 dev_t dev; 346 { 347 struct grf_softc *gp; 348 349 gp = grfsp[GRFUNIT(dev)]; 350 351 if (gp->g_flags & GF_GRFON) 352 return(0); 353 354 gp->g_flags |= GF_GRFON; 355 if (gp->g_itedev != NODEV) 356 ite_off(gp->g_itedev, 3); 357 358 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON)); 359 } 360 361 int 362 grfoff(dev) 363 dev_t dev; 364 { 365 struct grf_softc *gp; 366 int error; 367 368 gp = grfsp[GRFUNIT(dev)]; 369 370 if ((gp->g_flags & GF_GRFON) == 0) 371 return(0); 372 373 gp->g_flags &= ~GF_GRFON; 374 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF); 375 376 /* 377 * Closely tied together no X's 378 */ 379 if (gp->g_itedev != NODEV) 380 ite_on(gp->g_itedev, 2); 381 382 return(error); 383 } 384 385 int 386 grfsinfo(dev, dyninfo) 387 dev_t dev; 388 struct grfdyninfo *dyninfo; 389 { 390 struct grf_softc *gp; 391 int error; 392 393 gp = grfsp[GRFUNIT(dev)]; 394 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo); 395 396 /* 397 * Closely tied together no X's 398 */ 399 if (gp->g_itedev != NODEV) 400 ite_reinit(gp->g_itedev); 401 return(error); 402 } 403 404 #ifdef BANKEDDEVPAGER 405 406 int 407 grfbanked_get (dev, off, prot) 408 dev_t dev; 409 off_t off; 410 int prot; 411 { 412 struct grf_softc *gp; 413 struct grfinfo *gi; 414 int error, bank; 415 416 gp = grfsp[GRFUNIT(dev)]; 417 gi = &gp->g_display; 418 419 off -= gi->gd_regsize; 420 if (off < 0 || off >= gi->gd_fbsize) 421 return -1; 422 423 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 424 return error ? -1 : bank; 425 } 426 427 int 428 grfbanked_cur (dev) 429 dev_t dev; 430 { 431 struct grf_softc *gp; 432 int error, bank; 433 434 gp = grfsp[GRFUNIT(dev)]; 435 436 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank); 437 return(error ? -1 : bank); 438 } 439 440 int 441 grfbanked_set (dev, bank) 442 dev_t dev; 443 int bank; 444 { 445 struct grf_softc *gp; 446 447 gp = grfsp[GRFUNIT(dev)]; 448 return(gp->g_mode(gp, GM_GRFSETBANK, bank) ? -1 : 0); 449 } 450 451 #endif /* BANKEDDEVPAGER */ 452 #endif /* NGRF > 0 */ 453
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