grf.c revision 1.44
1 /* $NetBSD: grf.c,v 1.44 2002/10/02 04:55:49 thorpej 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 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.44 2002/10/02 04:55:49 thorpej Exp $"); 47 48 /* 49 * Graphics display driver for the Amiga 50 * This is the hardware-independent portion of the driver. 51 * Hardware access is through the grf_softc->g_mode routine. 52 */ 53 54 #include <sys/param.h> 55 #include <sys/proc.h> 56 #include <sys/ioctl.h> 57 #include <sys/device.h> 58 #include <sys/file.h> 59 #include <sys/malloc.h> 60 #include <sys/systm.h> 61 #include <sys/vnode.h> 62 #include <sys/mman.h> 63 #include <sys/poll.h> 64 #include <uvm/uvm_extern.h> 65 #include <machine/cpu.h> 66 #include <dev/sun/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 76 #include "view.h" 77 #include "grf.h" 78 79 #if NGRF > 0 80 #include "ite.h" 81 #if NITE == 0 82 #define ite_on(u,f) 83 #define ite_off(u,f) 84 #define ite_reinit(d) 85 #endif 86 87 int grfon(dev_t); 88 int grfoff(dev_t); 89 int grfsinfo(dev_t, struct grfdyninfo *); 90 91 void grfattach(struct device *, struct device *, void *); 92 int grfmatch(struct device *, struct cfdata *, void *); 93 int grfprint(void *, const char *); 94 /* 95 * pointers to grf drivers device structs 96 */ 97 struct grf_softc *grfsp[NGRF]; 98 99 CFATTACH_DECL(grf, sizeof(struct device), 100 grfmatch, grfattach, NULL, NULL); 101 102 dev_type_open(grfopen); 103 dev_type_close(grfclose); 104 dev_type_ioctl(grfioctl); 105 dev_type_poll(grfpoll); 106 dev_type_mmap(grfmmap); 107 108 const struct cdevsw grf_cdevsw = { 109 grfopen, grfclose, nullread, nullwrite, grfioctl, 110 nostop, notty, grfpoll, grfmmap, 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(struct device *pdp, struct cfdata *cfp, void *auxp) 124 { 125 126 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 127 return(0); 128 cfdata = cfp; 129 return(1); 130 } 131 132 /* 133 * attach.. plug pointer in and print some info. 134 * then try and attach an ite to us. note: dp is NULL 135 * durring console init. 136 */ 137 void 138 grfattach(struct device *pdp, struct device *dp, 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 maj = cdevsw_lookup_major(&grf_cdevsw); 150 151 gp->g_grfdev = makedev(maj, gp->g_unit); 152 if (dp != NULL) { 153 printf(": width %d height %d", gp->g_display.gd_dwidth, 154 gp->g_display.gd_dheight); 155 if (gp->g_display.gd_colors == 2) 156 printf(" monochrome\n"); 157 else 158 printf(" colors %d\n", gp->g_display.gd_colors); 159 } 160 161 /* 162 * try and attach an ite 163 */ 164 amiga_config_found(cfdata, dp, gp, grfprint); 165 } 166 167 int 168 grfprint(void *auxp, const char *pnp) 169 { 170 if (pnp) 171 printf("ite at %s", pnp); 172 return(UNCONF); 173 } 174 175 /*ARGSUSED*/ 176 int 177 grfopen(dev_t dev, int flags, int devtype, struct proc *p) 178 { 179 struct grf_softc *gp; 180 181 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 182 return(ENXIO); 183 184 if ((gp->g_flags & GF_ALIVE) == 0) 185 return(ENXIO); 186 187 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 188 return(EBUSY); 189 190 return(0); 191 } 192 193 /*ARGSUSED*/ 194 int 195 grfclose(dev_t dev, int flags, int mode, struct proc *p) 196 { 197 struct grf_softc *gp; 198 199 gp = grfsp[GRFUNIT(dev)]; 200 (void)grfoff(dev); 201 gp->g_flags &= GF_ALIVE; 202 return(0); 203 } 204 205 /*ARGSUSED*/ 206 int 207 grfioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) 208 { 209 struct grf_softc *gp; 210 int error; 211 212 gp = grfsp[GRFUNIT(dev)]; 213 error = 0; 214 215 switch (cmd) { 216 case OGRFIOCGINFO: 217 /* argl.. no bank-member.. */ 218 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 219 break; 220 case GRFIOCGINFO: 221 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 222 break; 223 case GRFIOCON: 224 error = grfon(dev); 225 break; 226 case GRFIOCOFF: 227 error = grfoff(dev); 228 break; 229 case GRFIOCSINFO: 230 error = grfsinfo(dev, (struct grfdyninfo *) data); 231 break; 232 case GRFGETVMODE: 233 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 234 case GRFSETVMODE: 235 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 236 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 237 ite_reinit(gp->g_itedev); 238 break; 239 case GRFGETNUMVM: 240 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 241 /* 242 * these are all hardware dependant, and have to be resolved 243 * in the respective driver. 244 */ 245 case GRFIOCPUTCMAP: 246 case GRFIOCGETCMAP: 247 case GRFIOCSSPRITEPOS: 248 case GRFIOCGSPRITEPOS: 249 case GRFIOCSSPRITEINF: 250 case GRFIOCGSPRITEINF: 251 case GRFIOCGSPRITEMAX: 252 case GRFIOCBITBLT: 253 case GRFIOCSETMON: 254 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 255 Amiga. 15/11/94 ill */ 256 /* 257 * We need the minor dev number to get the overlay/image 258 * information for grf_ul. 259 */ 260 return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev)); 261 262 case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 263 case FBIOSVIDEO: 264 error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev); 265 if (!error) 266 gp->g_blank = *(int *)data; 267 return (error); 268 269 case FBIOGVIDEO: 270 *(int *)data = gp->g_blank; 271 return (0); 272 273 default: 274 #if NVIEW > 0 275 /* 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 extern const struct cdevsw view_cdevsw; 282 283 return((*view_cdevsw.d_ioctl)(dev, cmd, data, flag, p)); 284 } 285 #endif 286 error = EPASSTHROUGH; 287 break; 288 289 } 290 return(error); 291 } 292 293 /*ARGSUSED*/ 294 int 295 grfpoll(dev_t dev, int events, struct proc *p) 296 { 297 return(events & (POLLOUT | POLLWRNORM)); 298 } 299 300 /* 301 * map the contents of a graphics display card into process' 302 * memory space. 303 */ 304 paddr_t 305 grfmmap(dev_t dev, off_t off, int prot) 306 { 307 struct grf_softc *gp; 308 struct grfinfo *gi; 309 310 gp = grfsp[GRFUNIT(dev)]; 311 gi = &gp->g_display; 312 313 /* 314 * control registers 315 */ 316 if (off >= 0 && off < gi->gd_regsize) 317 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 318 319 /* 320 * frame buffer 321 */ 322 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 323 off -= gi->gd_regsize; 324 return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT); 325 } 326 /* bogus */ 327 return(-1); 328 } 329 330 int 331 grfon(dev_t dev) 332 { 333 struct grf_softc *gp; 334 335 gp = grfsp[GRFUNIT(dev)]; 336 337 if (gp->g_flags & GF_GRFON) 338 return(0); 339 340 gp->g_flags |= GF_GRFON; 341 if (gp->g_itedev != NODEV) 342 ite_off(gp->g_itedev, 3); 343 344 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 345 NULL, 0, 0)); 346 } 347 348 int 349 grfoff(dev_t dev) 350 { 351 struct grf_softc *gp; 352 int error; 353 354 gp = grfsp[GRFUNIT(dev)]; 355 356 if ((gp->g_flags & GF_GRFON) == 0) 357 return(0); 358 359 gp->g_flags &= ~GF_GRFON; 360 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 361 NULL, 0, 0); 362 363 /* 364 * Closely tied together no X's 365 */ 366 if (gp->g_itedev != NODEV) 367 ite_on(gp->g_itedev, 2); 368 369 return(error); 370 } 371 372 int 373 grfsinfo(dev_t dev, struct grfdyninfo *dyninfo) 374 { 375 struct grf_softc *gp; 376 int error; 377 378 gp = grfsp[GRFUNIT(dev)]; 379 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 380 381 /* 382 * Closely tied together no X's 383 */ 384 if (gp->g_itedev != NODEV) 385 ite_reinit(gp->g_itedev); 386 return(error); 387 } 388 389 #endif /* NGRF > 0 */ 390
Indexes created Wed Oct 01 12:09:54 GMT 2025