1 /* $NetBSD: grf.c,v 1.32 1996/12/23 09:10:01 veego 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 struct cfdriver grf_cd = { 110 NULL, "grf", DV_DULL, NULL, 0 111 }; 112 113 /* 114 * only used in console init. 115 */ 116 static struct cfdata *cfdata; 117 118 /* 119 * match if the unit of grf matches its perspective 120 * low level board driver. 121 */ 122 int 123 grfmatch(pdp, cfp, auxp) 124 struct device *pdp; 125 struct cfdata *cfp; 126 void *auxp; 127 { 128 129 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 130 return(0); 131 cfdata = cfp; 132 return(1); 133 } 134 135 /* 136 * attach.. plug pointer in and print some info. 137 * then try and attach an ite to us. note: dp is NULL 138 * durring console init. 139 */ 140 void 141 grfattach(pdp, dp, auxp) 142 struct device *pdp, *dp; 143 void *auxp; 144 { 145 struct grf_softc *gp; 146 int maj; 147 148 gp = (struct grf_softc *)pdp; 149 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 150 151 /* 152 * find our major device number 153 */ 154 for(maj = 0; maj < nchrdev; maj++) 155 if (cdevsw[maj].d_open == grfopen) 156 break; 157 158 gp->g_grfdev = makedev(maj, gp->g_unit); 159 if (dp != NULL) { 160 printf(": width %d height %d", gp->g_display.gd_dwidth, 161 gp->g_display.gd_dheight); 162 if (gp->g_display.gd_colors == 2) 163 printf(" monochrome\n"); 164 else 165 printf(" colors %d\n", gp->g_display.gd_colors); 166 } 167 168 /* 169 * try and attach an ite 170 */ 171 amiga_config_found(cfdata, dp, gp, grfprint); 172 } 173 174 int 175 grfprint(auxp, pnp) 176 void *auxp; 177 const char *pnp; 178 { 179 if (pnp) 180 printf("ite at %s", pnp); 181 return(UNCONF); 182 } 183 184 /*ARGSUSED*/ 185 int 186 grfopen(dev, flags, devtype, p) 187 dev_t dev; 188 int flags, devtype; 189 struct proc *p; 190 { 191 struct grf_softc *gp; 192 193 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 194 return(ENXIO); 195 196 if ((gp->g_flags & GF_ALIVE) == 0) 197 return(ENXIO); 198 199 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 200 return(EBUSY); 201 202 return(0); 203 } 204 205 /*ARGSUSED*/ 206 int 207 grfclose(dev, flags, mode, p) 208 dev_t dev; 209 int flags; 210 int mode; 211 struct proc *p; 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, 0, 0)); 255 case GRFSETVMODE: 256 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 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, 0, 0)); 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, data, cmd, dev)); 283 284 case FBIOSVIDEO: 285 return(gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev)); 286 287 default: 288 #if NVIEW > 0 289 /* 290 * check to see whether it's a command recognized by the 291 * view code if the unit is 0 292 * XXX 293 */ 294 if (GRFUNIT(dev) == 0) 295 return(viewioctl(dev, cmd, data, flag, p)); 296 #endif 297 error = EINVAL; 298 break; 299 300 } 301 return(error); 302 } 303 304 /*ARGSUSED*/ 305 int 306 grfpoll(dev, events, p) 307 dev_t dev; 308 int events; 309 struct proc *p; 310 { 311 return(events & (POLLOUT | POLLWRNORM)); 312 } 313 314 /* 315 * map the contents of a graphics display card into process' 316 * memory space. 317 */ 318 int 319 grfmmap(dev, off, prot) 320 dev_t dev; 321 int off, prot; 322 { 323 struct grf_softc *gp; 324 struct grfinfo *gi; 325 326 gp = grfsp[GRFUNIT(dev)]; 327 gi = &gp->g_display; 328 329 /* 330 * control registers 331 */ 332 if (off >= 0 && off < gi->gd_regsize) 333 return(((u_int)gi->gd_regaddr + off) >> PGSHIFT); 334 335 /* 336 * frame buffer 337 */ 338 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 339 off -= gi->gd_regsize; 340 #ifdef BANKEDDEVPAGER 341 if (gi->gd_bank_size) 342 off %= gi->gd_bank_size; 343 #endif 344 return(((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 345 } 346 /* bogus */ 347 return(-1); 348 } 349 350 int 351 grfon(dev) 352 dev_t dev; 353 { 354 struct grf_softc *gp; 355 356 gp = grfsp[GRFUNIT(dev)]; 357 358 if (gp->g_flags & GF_GRFON) 359 return(0); 360 361 gp->g_flags |= GF_GRFON; 362 if (gp->g_itedev != NODEV) 363 ite_off(gp->g_itedev, 3); 364 365 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 366 NULL, 0, 0)); 367 } 368 369 int 370 grfoff(dev) 371 dev_t dev; 372 { 373 struct grf_softc *gp; 374 int error; 375 376 gp = grfsp[GRFUNIT(dev)]; 377 378 if ((gp->g_flags & GF_GRFON) == 0) 379 return(0); 380 381 gp->g_flags &= ~GF_GRFON; 382 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 383 NULL, 0, 0); 384 385 /* 386 * Closely tied together no X's 387 */ 388 if (gp->g_itedev != NODEV) 389 ite_on(gp->g_itedev, 2); 390 391 return(error); 392 } 393 394 int 395 grfsinfo(dev, dyninfo) 396 dev_t dev; 397 struct grfdyninfo *dyninfo; 398 { 399 struct grf_softc *gp; 400 int error; 401 402 gp = grfsp[GRFUNIT(dev)]; 403 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 404 405 /* 406 * Closely tied together no X's 407 */ 408 if (gp->g_itedev != NODEV) 409 ite_reinit(gp->g_itedev); 410 return(error); 411 } 412 413 #ifdef BANKEDDEVPAGER 414 415 int 416 grfbanked_get (dev, off, prot) 417 dev_t dev; 418 off_t off; 419 int prot; 420 { 421 struct grf_softc *gp; 422 struct grfinfo *gi; 423 int error, bank; 424 425 gp = grfsp[GRFUNIT(dev)]; 426 gi = &gp->g_display; 427 428 off -= gi->gd_regsize; 429 if (off < 0 || off >= gi->gd_fbsize) 430 return -1; 431 432 error = gp->g_mode(gp, GM_GRFGETBANK, &bank, off, prot); 433 return error ? -1 : bank; 434 } 435 436 int 437 grfbanked_cur (dev) 438 dev_t dev; 439 { 440 struct grf_softc *gp; 441 int error, bank; 442 443 gp = grfsp[GRFUNIT(dev)]; 444 445 error = gp->g_mode(gp, GM_GRFGETCURBANK, &bank, 0, 0); 446 return(error ? -1 : bank); 447 } 448 449 int 450 grfbanked_set (dev, bank) 451 dev_t dev; 452 int bank; 453 { 454 struct grf_softc *gp; 455 456 gp = grfsp[GRFUNIT(dev)]; 457 return(gp->g_mode(gp, GM_GRFSETBANK, &bank, 0, 0) ? -1 : 0); 458 } 459 460 #endif /* BANKEDDEVPAGER */ 461 #endif /* NGRF > 0 */ 462