grf.c revision 1.56
1 /* $NetBSD: grf.c,v 1.56 2011/06/30 20:09:19 wiz 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. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah $Hdr: grf.c 1.31 91/01/21$ 37 * 38 * @(#)grf.c 7.8 (Berkeley) 5/7/91 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.56 2011/06/30 20:09:19 wiz Exp $"); 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/systm.h> 57 #include <sys/vnode.h> 58 #include <sys/mman.h> 59 #include <machine/cpu.h> 60 #include <dev/sun/fbio.h> 61 #include <amiga/amiga/color.h> /* DEBUG */ 62 #include <amiga/amiga/device.h> 63 #include <amiga/dev/grfioctl.h> 64 #include <amiga/dev/grfvar.h> 65 #include <amiga/dev/itevar.h> 66 #include <amiga/dev/viewioctl.h> 67 68 #include <sys/conf.h> 69 70 #include "view.h" 71 #include "grf.h" 72 73 #if NGRF > 0 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 grfon(dev_t); 82 int grfoff(dev_t); 83 int grfsinfo(dev_t, struct grfdyninfo *); 84 85 void grfattach(device_t, device_t, void *); 86 int grfmatch(device_t, cfdata_t, void *); 87 int grfprint(void *, const char *); 88 /* 89 * pointers to grf drivers device structs 90 */ 91 struct grf_softc *grfsp[NGRF]; 92 93 CFATTACH_DECL_NEW(grf, 0, 94 grfmatch, grfattach, NULL, NULL); 95 96 dev_type_open(grfopen); 97 dev_type_close(grfclose); 98 dev_type_ioctl(grfioctl); 99 dev_type_mmap(grfmmap); 100 101 const struct cdevsw grf_cdevsw = { 102 grfopen, grfclose, nullread, nullwrite, grfioctl, 103 nostop, notty, nopoll, grfmmap, nokqfilter, 104 }; 105 106 /* 107 * only used in console init. 108 */ 109 static cfdata_t cfdata; 110 111 /* 112 * match if the unit of grf matches its perspective 113 * low level board driver. 114 */ 115 int 116 grfmatch(device_t pdp, cfdata_t cfp, void *auxp) 117 { 118 119 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 120 return(0); 121 cfdata = cfp; 122 return(1); 123 } 124 125 /* 126 * attach.. plug pointer in and print some info. 127 * then try and attach an ite to us. note: dp is NULL 128 * durring console init. 129 */ 130 void 131 grfattach(device_t pdp, device_t dp, void *auxp) 132 { 133 struct grf_softc *gp; 134 int maj; 135 136 gp = (struct grf_softc *)pdp; 137 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 138 139 /* 140 * find our major device number 141 */ 142 maj = cdevsw_lookup_major(&grf_cdevsw); 143 144 gp->g_grfdev = makedev(maj, gp->g_unit); 145 if (dp != NULL) { 146 printf(": width %d height %d", gp->g_display.gd_dwidth, 147 gp->g_display.gd_dheight); 148 if (gp->g_display.gd_colors == 2) 149 printf(" monochrome\n"); 150 else 151 printf(" colors %d\n", gp->g_display.gd_colors); 152 } 153 154 /* 155 * try and attach an ite 156 */ 157 amiga_config_found(cfdata, dp, gp, grfprint); 158 } 159 160 int 161 grfprint(void *auxp, const char *pnp) 162 { 163 if (pnp) 164 aprint_normal("ite at %s", pnp); 165 return(UNCONF); 166 } 167 168 /*ARGSUSED*/ 169 int 170 grfopen(dev_t dev, int flags, int devtype, struct lwp *l) 171 { 172 struct grf_softc *gp; 173 174 if (GRFUNIT(dev) >= NGRF || (gp = grfsp[GRFUNIT(dev)]) == NULL) 175 return(ENXIO); 176 177 if ((gp->g_flags & GF_ALIVE) == 0) 178 return(ENXIO); 179 180 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 181 return(EBUSY); 182 183 return(0); 184 } 185 186 /*ARGSUSED*/ 187 int 188 grfclose(dev_t dev, int flags, int mode, struct lwp *l) 189 { 190 struct grf_softc *gp; 191 192 gp = grfsp[GRFUNIT(dev)]; 193 (void)grfoff(dev); 194 gp->g_flags &= GF_ALIVE; 195 return(0); 196 } 197 198 /*ARGSUSED*/ 199 int 200 grfioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 201 { 202 struct grf_softc *gp; 203 int error; 204 205 gp = grfsp[GRFUNIT(dev)]; 206 error = 0; 207 208 switch (cmd) { 209 case OGRFIOCGINFO: 210 /* argl.. no bank-member.. */ 211 memcpy(data, (void *)&gp->g_display, sizeof(struct grfinfo)-4); 212 break; 213 case GRFIOCGINFO: 214 memcpy(data, (void *)&gp->g_display, sizeof(struct grfinfo)); 215 break; 216 case GRFIOCON: 217 error = grfon(dev); 218 break; 219 case GRFIOCOFF: 220 error = grfoff(dev); 221 break; 222 case GRFIOCSINFO: 223 error = grfsinfo(dev, (struct grfdyninfo *) data); 224 break; 225 case GRFGETVMODE: 226 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 227 case GRFSETVMODE: 228 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 229 if (error == 0 && gp->g_itedev && !(gp->g_flags & GF_GRFON)) 230 ite_reinit(gp->g_itedev); 231 break; 232 case GRFGETNUMVM: 233 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 234 /* 235 * these are all hardware dependent, and have to be resolved 236 * in the respective driver. 237 */ 238 case GRFIOCPUTCMAP: 239 case GRFIOCGETCMAP: 240 case GRFIOCSSPRITEPOS: 241 case GRFIOCGSPRITEPOS: 242 case GRFIOCSSPRITEINF: 243 case GRFIOCGSPRITEINF: 244 case GRFIOCGSPRITEMAX: 245 case GRFIOCBITBLT: 246 case GRFIOCSETMON: 247 case GRFTOGGLE: /* Toggles between Cirrus boards and native ECS on 248 Amiga. 15/11/94 ill */ 249 /* 250 * We need the minor dev number to get the overlay/image 251 * information for grf_ul. 252 */ 253 return(gp->g_mode(gp, GM_GRFIOCTL, data, cmd, dev)); 254 255 case GRFIOCBLANK: /* blank ioctl, IOCON/OFF will turn ite on */ 256 case FBIOSVIDEO: 257 error = gp->g_mode(gp, GM_GRFIOCTL, data, GRFIOCBLANK, dev); 258 if (!error) 259 gp->g_blank = *(int *)data; 260 return (error); 261 262 case FBIOGVIDEO: 263 *(int *)data = gp->g_blank; 264 return (0); 265 266 default: 267 #if NVIEW > 0 268 /* 269 * check to see whether it's a command recognized by the 270 * view code if the unit is 0 271 * XXX 272 */ 273 if (GRFUNIT(dev) == 0) { 274 extern const struct cdevsw view_cdevsw; 275 276 return((*view_cdevsw.d_ioctl)(dev, cmd, data, flag, l)); 277 } 278 #endif 279 error = EPASSTHROUGH; 280 break; 281 282 } 283 return(error); 284 } 285 286 /* 287 * map the contents of a graphics display card into process' 288 * memory space. 289 */ 290 paddr_t 291 grfmmap(dev_t dev, off_t off, int prot) 292 { 293 struct grf_softc *gp; 294 struct grfinfo *gi; 295 296 gp = grfsp[GRFUNIT(dev)]; 297 gi = &gp->g_display; 298 299 /* 300 * control registers 301 */ 302 if (off >= 0 && off < gi->gd_regsize) 303 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 304 305 /* 306 * frame buffer 307 */ 308 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 309 off -= gi->gd_regsize; 310 return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT); 311 } 312 /* bogus */ 313 return(-1); 314 } 315 316 int 317 grfon(dev_t dev) 318 { 319 struct grf_softc *gp; 320 321 gp = grfsp[GRFUNIT(dev)]; 322 323 if (gp->g_flags & GF_GRFON) 324 return(0); 325 326 gp->g_flags |= GF_GRFON; 327 if (gp->g_itedev != NODEV) 328 ite_off(gp->g_itedev, 3); 329 330 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 331 NULL, 0, 0)); 332 } 333 334 int 335 grfoff(dev_t dev) 336 { 337 struct grf_softc *gp; 338 int error; 339 340 gp = grfsp[GRFUNIT(dev)]; 341 342 if ((gp->g_flags & GF_GRFON) == 0) 343 return(0); 344 345 gp->g_flags &= ~GF_GRFON; 346 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 347 NULL, 0, 0); 348 349 /* 350 * Closely tied together no X's 351 */ 352 if (gp->g_itedev != NODEV) 353 ite_on(gp->g_itedev, 2); 354 355 return(error); 356 } 357 358 int 359 grfsinfo(dev_t dev, struct grfdyninfo *dyninfo) 360 { 361 struct grf_softc *gp; 362 int error; 363 364 gp = grfsp[GRFUNIT(dev)]; 365 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 366 367 /* 368 * Closely tied together no X's 369 */ 370 if (gp->g_itedev != NODEV) 371 ite_reinit(gp->g_itedev); 372 return(error); 373 } 374 375 #endif /* NGRF > 0 */ 376
Indexes created Thu Sep 25 16:09:42 GMT 2025