grf.c revision 1.41.4.1
1 /* $NetBSD: grf.c,v 1.41.4.1 2002/05/16 16:50:16 gehenna 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 1.41.4.1 2002/05/16 16:50:16 gehenna 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 #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(dev_t); 89 int grfoff(dev_t); 90 int grfsinfo(dev_t, struct grfdyninfo *); 91 92 void grfattach(struct device *, struct device *, void *); 93 int grfmatch(struct device *, struct cfdata *, void *); 94 int grfprint(void *, const char *); 95 /* 96 * pointers to grf drivers device structs 97 */ 98 struct grf_softc *grfsp[NGRF]; 99 100 struct cfattach grf_ca = { 101 sizeof(struct device), grfmatch, grfattach 102 }; 103 104 /* 105 * only used in console init. 106 */ 107 static struct cfdata *cfdata; 108 109 /* 110 * match if the unit of grf matches its perspective 111 * low level board driver. 112 */ 113 int 114 grfmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 115 { 116 117 if (cfp->cf_unit != ((struct grf_softc *)pdp)->g_unit) 118 return(0); 119 cfdata = cfp; 120 return(1); 121 } 122 123 /* 124 * attach.. plug pointer in and print some info. 125 * then try and attach an ite to us. note: dp is NULL 126 * durring console init. 127 */ 128 void 129 grfattach(struct device *pdp, struct device *dp, void *auxp) 130 { 131 struct grf_softc *gp; 132 int maj; 133 134 gp = (struct grf_softc *)pdp; 135 grfsp[gp->g_unit] = (struct grf_softc *)pdp; 136 137 /* 138 * find our major device number 139 */ 140 for(maj = 0; maj < nchrdev; maj++) 141 if (cdevsw[maj].d_open == grfopen) 142 break; 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 printf("ite at %s", pnp); 165 return(UNCONF); 166 } 167 168 /*ARGSUSED*/ 169 int 170 grfopen(dev_t dev, int flags, int devtype, struct proc *p) 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 proc *p) 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, caddr_t data, int flag, struct proc *p) 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 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 212 break; 213 case GRFIOCGINFO: 214 bcopy((caddr_t)&gp->g_display, data, 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 dependant, 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 return(viewioctl(dev, cmd, data, flag, p)); 275 #endif 276 error = EPASSTHROUGH; 277 break; 278 279 } 280 return(error); 281 } 282 283 /*ARGSUSED*/ 284 int 285 grfpoll(dev_t dev, int events, struct proc *p) 286 { 287 return(events & (POLLOUT | POLLWRNORM)); 288 } 289 290 /* 291 * map the contents of a graphics display card into process' 292 * memory space. 293 */ 294 paddr_t 295 grfmmap(dev_t dev, off_t off, int prot) 296 { 297 struct grf_softc *gp; 298 struct grfinfo *gi; 299 300 gp = grfsp[GRFUNIT(dev)]; 301 gi = &gp->g_display; 302 303 /* 304 * control registers 305 */ 306 if (off >= 0 && off < gi->gd_regsize) 307 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 308 309 /* 310 * frame buffer 311 */ 312 if (off >= gi->gd_regsize && off < gi->gd_regsize+gi->gd_fbsize) { 313 off -= gi->gd_regsize; 314 return(((paddr_t)gi->gd_fbaddr + off) >> PGSHIFT); 315 } 316 /* bogus */ 317 return(-1); 318 } 319 320 int 321 grfon(dev_t dev) 322 { 323 struct grf_softc *gp; 324 325 gp = grfsp[GRFUNIT(dev)]; 326 327 if (gp->g_flags & GF_GRFON) 328 return(0); 329 330 gp->g_flags |= GF_GRFON; 331 if (gp->g_itedev != NODEV) 332 ite_off(gp->g_itedev, 3); 333 334 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 335 NULL, 0, 0)); 336 } 337 338 int 339 grfoff(dev_t dev) 340 { 341 struct grf_softc *gp; 342 int error; 343 344 gp = grfsp[GRFUNIT(dev)]; 345 346 if ((gp->g_flags & GF_GRFON) == 0) 347 return(0); 348 349 gp->g_flags &= ~GF_GRFON; 350 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 351 NULL, 0, 0); 352 353 /* 354 * Closely tied together no X's 355 */ 356 if (gp->g_itedev != NODEV) 357 ite_on(gp->g_itedev, 2); 358 359 return(error); 360 } 361 362 int 363 grfsinfo(dev_t dev, struct grfdyninfo *dyninfo) 364 { 365 struct grf_softc *gp; 366 int error; 367 368 gp = grfsp[GRFUNIT(dev)]; 369 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 370 371 /* 372 * Closely tied together no X's 373 */ 374 if (gp->g_itedev != NODEV) 375 ite_reinit(gp->g_itedev); 376 return(error); 377 } 378 379 #endif /* NGRF > 0 */ 380
Indexes created Wed Oct 01 12:09:54 GMT 2025