grf.c revision 1.50
1 /* $NetBSD: grf.c,v 1.50 2007/03/04 05:59:18 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: grf.c 1.31 91/01/21$ 36 * 37 * @(#)grf.c 7.8 (Berkeley) 5/7/91 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah $Hdr: grf.c 1.31 91/01/21$ 75 * 76 * @(#)grf.c 7.8 (Berkeley) 5/7/91 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.50 2007/03/04 05:59:18 christos Exp $"); 81 82 /* 83 * Graphics display driver for the Amiga 84 * This is the hardware-independent portion of the driver. 85 * Hardware access is through the grf_softc->g_mode routine. 86 */ 87 88 #include <sys/param.h> 89 #include <sys/proc.h> 90 #include <sys/ioctl.h> 91 #include <sys/device.h> 92 #include <sys/file.h> 93 #include <sys/malloc.h> 94 #include <sys/systm.h> 95 #include <sys/vnode.h> 96 #include <sys/mman.h> 97 #include <uvm/uvm_extern.h> 98 #include <machine/cpu.h> 99 #include <dev/sun/fbio.h> 100 #include <amiga/amiga/color.h> /* DEBUG */ 101 #include <amiga/amiga/device.h> 102 #include <amiga/dev/grfioctl.h> 103 #include <amiga/dev/grfvar.h> 104 #include <amiga/dev/itevar.h> 105 #include <amiga/dev/viewioctl.h> 106 107 #include <sys/conf.h> 108 109 #include "view.h" 110 #include "grf.h" 111 112 #if NGRF > 0 113 #include "ite.h" 114 #if NITE == 0 115 #define ite_on(u,f) 116 #define ite_off(u,f) 117 #define ite_reinit(d) 118 #endif 119 120 int grfon(dev_t); 121 int grfoff(dev_t); 122 int grfsinfo(dev_t, struct grfdyninfo *); 123 124 void grfattach(struct device *, struct device *, void *); 125 int grfmatch(struct device *, struct cfdata *, void *); 126 int grfprint(void *, const char *); 127 /* 128 * pointers to grf drivers device structs 129 */ 130 struct grf_softc *grfsp[NGRF]; 131 132 CFATTACH_DECL(grf, sizeof(struct device), 133 grfmatch, grfattach, NULL, NULL); 134 135 dev_type_open(grfopen); 136 dev_type_close(grfclose); 137 dev_type_ioctl(grfioctl); 138 dev_type_mmap(grfmmap); 139 140 const struct cdevsw grf_cdevsw = { 141 grfopen, grfclose, nullread, nullwrite, grfioctl, 142 nostop, notty, nopoll, grfmmap, nokqfilter, 143 }; 144 145 /* 146 * only used in console init. 147 */ 148 static struct cfdata *cfdata; 149 150 /* 151 * match if the unit of grf matches its perspective 152 * low level board driver. 153 */ 154 int 155 grfmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 156 { 157 158 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 159 return(0); 160 cfdata = cfp; 161 return(1); 162 } 163 164 /* 165 * attach.. plug pointer in and print some info. 166 * then try and attach an ite to us. note: dp is NULL 167 * durring console init. 168 */ 169 void 170 grfattach(struct device *pdp, struct device *dp, void *auxp) 171 { 172 struct grf_softc *gp; 173 int maj; 174 175 gp = (struct grf_softc *)pdp; 176 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 177 178 /* 179 * find our major device number 180 */ 181 maj = cdevsw_lookup_major(&grf_cdevsw); 182 183 gp->g_grfdev = makedev(maj, gp->g_unit); 184 if (dp != NULL) { 185 printf(": width %d height %d", gp->g_display.gd_dwidth, 186 gp->g_display.gd_dheight); 187 if (gp->g_display.gd_colors == 2) 188 printf(" monochrome\n"); 189 else 190 printf(" colors %d\n", gp->g_display.gd_colors); 191 } 192 193 /* 194 * try and attach an ite 195 */ 196 amiga_config_found(cfdata, dp, gp, grfprint); 197 } 198 199 int 200 grfprint(void *auxp, const char *pnp) 201 { 202 if (pnp) 203 aprint_normal("ite at %s", pnp); 204 return(UNCONF); 205 } 206 207 /*ARGSUSED*/ 208 int 209 grfopen(dev_t dev, int flags, int devtype, struct lwp *l) 210 { 211 struct grf_softc *gp; 212 213 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 214 return(ENXIO); 215 216 if ((gp->g_flags & GF_ALIVE) == 0) 217 return(ENXIO); 218 219 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 220 return(EBUSY); 221 222 return(0); 223 } 224 225 /*ARGSUSED*/ 226 int 227 grfclose(dev_t dev, int flags, int mode, struct lwp *l) 228 { 229 struct grf_softc *gp; 230 231 gp = grfsp[GRFUNIT(dev)]; 232 (void)grfoff(dev); 233 gp->g_flags &= GF_ALIVE; 234 return(0); 235 } 236 237 /*ARGSUSED*/ 238 int 239 grfioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 240 { 241 struct grf_softc *gp; 242 int error; 243 244 gp = grfsp[GRFUNIT(dev)]; 245 error = 0; 246 247 switch (cmd) { 248 case OGRFIOCGINFO: 249 /* argl.. no bank-member.. */ 250 bcopy((void *)&gp->g_display, data, sizeof(struct grfinfo)-4); 251 break; 252 case GRFIOCGINFO: 253 bcopy((void *)&gp->g_display, data, sizeof(struct grfinfo)); 254 break; 255 case GRFIOCON: 256 error = grfon(dev); 257 break; 258 case GRFIOCOFF: 259 error = grfoff(dev); 260 break; 261 case GRFIOCSINFO: 262 error = grfsinfo(dev, (struct grfdyninfo *) data); 263 break; 264 case GRFGETVMODE: 265 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 266 case GRFSETVMODE: 267 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 268 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 269 ite_reinit(gp->g_itedev); 270 break; 271 case GRFGETNUMVM: 272 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 273 /* 274 * these are all hardware dependant, and have to be resolved 275 * in the respective driver. 276 */ 277 case GRFIOCPUTCMAP: 278 case GRFIOCGETCMAP: 279 case GRFIOCSSPRITEPOS: 280 case GRFIOCGSPRITEPOS: 281 case GRFIOCSSPRITEINF: 282 case GRFIOCGSPRITEINF: 283 case GRFIOCGSPRITEMAX: 284 case GRFIOCBITBLT: 285 case GRFIOCSETMON: 286 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 287 Amiga. 15/11/94 ill */ 288 /* 289 * We need the minor dev number to get the overlay/image 290 * information for grf_ul. 291 */ 292 return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev)); 293 294 case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 295 case FBIOSVIDEO: 296 error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev); 297 if (!error) 298 gp->g_blank = *(int *)data; 299 return (error); 300 301 case FBIOGVIDEO: 302 *(int *)data = gp->g_blank; 303 return (0); 304 305 default: 306 #if NVIEW > 0 307 /* 308 * check to see whether it's a command recognized by the 309 * view code if the unit is 0 310 * XXX 311 */ 312 if (GRFUNIT(dev) == 0) { 313 extern const struct cdevsw view_cdevsw; 314 315 return((*view_cdevsw.d_ioctl)(dev, cmd, data, flag, l)); 316 } 317 #endif 318 error = EPASSTHROUGH; 319 break; 320 321 } 322 return(error); 323 } 324 325 /* 326 * map the contents of a graphics display card into process' 327 * memory space. 328 */ 329 paddr_t 330 grfmmap(dev_t dev, off_t off, int prot) 331 { 332 struct grf_softc *gp; 333 struct grfinfo *gi; 334 335 gp = grfsp[GRFUNIT(dev)]; 336 gi = &gp->g_display; 337 338 /* 339 * control registers 340 */ 341 if (off >= 0 && off < gi->gd_regsize) 342 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 343 344 /* 345 * frame buffer 346 */ 347 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 348 off -= gi->gd_regsize; 349 return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT); 350 } 351 /* bogus */ 352 return(-1); 353 } 354 355 int 356 grfon(dev_t dev) 357 { 358 struct grf_softc *gp; 359 360 gp = grfsp[GRFUNIT(dev)]; 361 362 if (gp->g_flags & GF_GRFON) 363 return(0); 364 365 gp->g_flags |= GF_GRFON; 366 if (gp->g_itedev != NODEV) 367 ite_off(gp->g_itedev, 3); 368 369 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 370 NULL, 0, 0)); 371 } 372 373 int 374 grfoff(dev_t dev) 375 { 376 struct grf_softc *gp; 377 int error; 378 379 gp = grfsp[GRFUNIT(dev)]; 380 381 if ((gp->g_flags & GF_GRFON) == 0) 382 return(0); 383 384 gp->g_flags &= ~GF_GRFON; 385 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 386 NULL, 0, 0); 387 388 /* 389 * Closely tied together no X's 390 */ 391 if (gp->g_itedev != NODEV) 392 ite_on(gp->g_itedev, 2); 393 394 return(error); 395 } 396 397 int 398 grfsinfo(dev_t dev, struct grfdyninfo *dyninfo) 399 { 400 struct grf_softc *gp; 401 int error; 402 403 gp = grfsp[GRFUNIT(dev)]; 404 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 405 406 /* 407 * Closely tied together no X's 408 */ 409 if (gp->g_itedev != NODEV) 410 ite_reinit(gp->g_itedev); 411 return(error); 412 } 413 414 #endif /* NGRF > 0 */ 415
Indexes created Tue Sep 23 14:10:03 GMT 2025