grf.c revision 1.12
1 /* $NetBSD: grf.c,v 1.12 1996/09/16 06:43:32 leo Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Leo Weppelman 5 * Copyright (c) 1988 University of Utah. 6 * Copyright (c) 1990 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Systems Programming Group of the University of Utah Computer 11 * Science Department. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: Utah $Hdr: grf.c 1.31 91/01/21$ 42 * 43 * @(#)grf.c 7.8 (Berkeley) 5/7/91 44 */ 45 46 /* 47 * Graphics display driver for the Atari 48 * This is the hardware-independent portion of the driver. 49 * Hardware access is through the grf_softc->g_mode routine. 50 */ 51 52 #include <sys/param.h> 53 #include <sys/proc.h> 54 #include <sys/ioctl.h> 55 #include <sys/device.h> 56 #include <sys/file.h> 57 #include <sys/malloc.h> 58 #include <sys/conf.h> 59 #include <sys/systm.h> 60 #include <sys/vnode.h> 61 #include <sys/mman.h> 62 #include <vm/vm.h> 63 #include <vm/vm_kern.h> 64 #include <vm/vm_page.h> 65 #include <vm/vm_pager.h> 66 #include <machine/cpu.h> 67 #include <atari/atari/device.h> 68 #include <atari/dev/grfioctl.h> 69 #include <atari/dev/grfabs_reg.h> 70 #include <atari/dev/grfvar.h> 71 #include <atari/dev/itevar.h> 72 #include <atari/dev/viewioctl.h> 73 #include <atari/dev/viewvar.h> 74 75 #include "grfcc.h" 76 #include "grfet.h" 77 #define NGRF (NGRFCC + NGRFET) 78 79 #if NGRF > 0 80 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 int grfbusprint __P((void *auxp, const char *)); 98 int grfbusmatch __P((struct device *, void *, void *)); 99 void grfbusattach __P((struct device *, struct device *, void *)); 100 101 /* 102 * pointers to grf drivers device structs 103 */ 104 struct grf_softc *grfsp[NGRF]; /* XXX */ 105 106 struct cfattach grfbus_ca = { 107 sizeof(struct device), grfbusmatch, grfbusattach 108 }; 109 110 struct cfdriver grfbus_cd = { 111 NULL, "grfbus", DV_DULL 112 }; 113 114 /* 115 * only used in console init. 116 */ 117 static struct cfdata *cfdata_gbus = NULL; 118 119 int 120 grfbusmatch(pdp, match, auxp) 121 struct device *pdp; 122 void *match, *auxp; 123 { 124 struct cfdata *cfp = match; 125 126 if(strcmp(auxp, grfbus_cd.cd_name)) 127 return(0); 128 129 if(atari_realconfig == 0) 130 cfdata_gbus = cfp; 131 return(1); /* Always there */ 132 } 133 134 void 135 grfbusattach(pdp, dp, auxp) 136 struct device *pdp, *dp; 137 void *auxp; 138 { 139 grf_auxp_t grf_auxp; 140 141 grf_auxp.busprint = grfbusprint; 142 grf_auxp.from_bus_match = 1; 143 144 if(dp == NULL) /* Console init */ 145 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 146 else { 147 printf("\n"); 148 config_found(dp, (void*)&grf_auxp, grfbusprint); 149 } 150 } 151 152 int 153 grfbusprint(auxp, name) 154 void *auxp; 155 const char *name; 156 { 157 if(name == NULL) 158 return(UNCONF); 159 return(QUIET); 160 } 161 162 /*ARGSUSED*/ 163 int 164 grfopen(dev, flags, devtype, p) 165 dev_t dev; 166 int flags, devtype; 167 struct proc *p; 168 { 169 struct grf_softc *gp; 170 171 if (GRFUNIT(dev) >= NGRF) 172 return(ENXIO); 173 174 gp = grfsp[GRFUNIT(dev)]; 175 176 if ((gp->g_flags & GF_ALIVE) == 0) 177 return(ENXIO); 178 179 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 180 return(EBUSY); 181 grf_viewsync(gp); 182 183 return(0); 184 } 185 186 /*ARGSUSED*/ 187 int 188 grfclose(dev, flags, mode, p) 189 dev_t dev; 190 int flags; 191 int mode; 192 struct proc *p; 193 { 194 struct grf_softc *gp; 195 196 gp = grfsp[GRFUNIT(dev)]; 197 (void)grfoff(dev); 198 gp->g_flags &= GF_ALIVE; 199 return(0); 200 } 201 202 /*ARGSUSED*/ 203 int 204 grfioctl(dev, cmd, data, flag, p) 205 dev_t dev; 206 u_long cmd; 207 int flag; 208 caddr_t data; 209 struct proc *p; 210 { 211 struct grf_softc *gp; 212 int error; 213 214 gp = grfsp[GRFUNIT(dev)]; 215 error = 0; 216 217 switch (cmd) { 218 case OGRFIOCGINFO: 219 /* argl.. no bank-member.. */ 220 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 221 break; 222 case GRFIOCGINFO: 223 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 224 break; 225 case GRFIOCON: 226 error = grfon(dev); 227 break; 228 case GRFIOCOFF: 229 error = grfoff(dev); 230 break; 231 case GRFIOCSINFO: 232 error = grfsinfo(dev, (struct grfdyninfo *) data); 233 break; 234 case GRFGETVMODE: 235 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 236 case GRFSETVMODE: 237 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 238 if (error == 0 && gp->g_itedev) 239 ite_reinit(gp->g_itedev); 240 break; 241 case GRFGETNUMVM: 242 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 243 /* 244 * these are all hardware dependant, and have to be resolved 245 * in the respective driver. 246 */ 247 case GRFIOCPUTCMAP: 248 case GRFIOCGETCMAP: 249 case GRFIOCSSPRITEPOS: 250 case GRFIOCGSPRITEPOS: 251 case GRFIOCSSPRITEINF: 252 case GRFIOCGSPRITEINF: 253 case GRFIOCGSPRITEMAX: 254 default: 255 /* 256 * check to see whether it's a command recognized by the 257 * view code. 258 */ 259 return(viewioctl(gp->g_viewdev, cmd, data, flag, p)); 260 error = EINVAL; 261 break; 262 263 } 264 return(error); 265 } 266 267 /*ARGSUSED*/ 268 int 269 grfselect(dev, rw, p) 270 dev_t dev; 271 int rw; 272 struct proc *p; 273 { 274 if (rw == FREAD) 275 return(0); 276 return(1); 277 } 278 279 /* 280 * map the contents of a graphics display card into process' 281 * memory space. 282 */ 283 int 284 grfmmap(dev, off, prot) 285 dev_t dev; 286 int off, prot; 287 { 288 struct grf_softc *gp; 289 struct grfinfo *gi; 290 291 gp = grfsp[GRFUNIT(dev)]; 292 gi = &gp->g_display; 293 294 /* 295 * frame buffer 296 */ 297 if ((off >= 0) && (off < gi->gd_fbsize)) 298 return (((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 299 return(-1); 300 } 301 302 int 303 grfon(dev) 304 dev_t dev; 305 { 306 struct grf_softc *gp; 307 308 gp = grfsp[GRFUNIT(dev)]; 309 310 if (gp->g_flags & GF_GRFON) 311 return(0); 312 313 gp->g_flags |= GF_GRFON; 314 if (gp->g_itedev != NODEV) 315 ite_off(gp->g_itedev, 3); 316 317 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 318 NULL, 0, 0)); 319 } 320 321 int 322 grfoff(dev) 323 dev_t dev; 324 { 325 struct grf_softc *gp; 326 int error; 327 328 gp = grfsp[GRFUNIT(dev)]; 329 330 if ((gp->g_flags & GF_GRFON) == 0) 331 return(0); 332 333 gp->g_flags &= ~GF_GRFON; 334 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 335 NULL, 0, 0); 336 337 /* 338 * Closely tied together no X's 339 */ 340 if (gp->g_itedev != NODEV) 341 ite_on(gp->g_itedev, 2); 342 343 return(error); 344 } 345 346 int 347 grfsinfo(dev, dyninfo) 348 dev_t dev; 349 struct grfdyninfo *dyninfo; 350 { 351 struct grf_softc *gp; 352 int error; 353 354 gp = grfsp[GRFUNIT(dev)]; 355 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 356 357 /* 358 * Closely tied together no X's 359 */ 360 if (gp->g_itedev != NODEV) 361 ite_reinit(gp->g_itedev); 362 return(error); 363 } 364 365 /* 366 * Get the grf-info in sync with underlying view. 367 */ 368 void 369 grf_viewsync(gp) 370 struct grf_softc *gp; 371 { 372 struct view_size vs; 373 bmap_t bm; 374 struct grfinfo *gi; 375 376 gi = &gp->g_display; 377 378 viewioctl(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 0, NOPROC); 379 380 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 381 382 gi->gd_fbaddr = bm.hw_address; 383 gi->gd_fbsize = bm.depth*bm.bytes_per_row*bm.rows; 384 gi->gd_regaddr = bm.hw_regs; 385 gi->gd_regsize = bm.reg_size; 386 gp->g_fbkva = bm.plane; 387 gp->g_regkva = bm.regs; 388 389 if(viewioctl(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, NOPROC)) { 390 /* 391 * fill in some default values... 392 * XXX: Should _never_ happen 393 */ 394 vs.width = 640; 395 vs.height = 400; 396 vs.depth = 1; 397 } 398 gi->gd_colors = 1 << vs.depth; 399 gi->gd_planes = vs.depth; 400 401 gi->gd_fbwidth = vs.width; 402 gi->gd_fbheight = vs.height; 403 gi->gd_dyn.gdi_fbx = 0; 404 gi->gd_dyn.gdi_fby = 0; 405 gi->gd_dyn.gdi_dwidth = vs.width; 406 gi->gd_dyn.gdi_dheight = vs.height; 407 gi->gd_dyn.gdi_dx = 0; 408 gi->gd_dyn.gdi_dy = 0; 409 } 410 411 /* 412 * Change the mode of the display. 413 * Right now all we can do is grfon/grfoff. 414 * Return a UNIX error number or 0 for success. 415 */ 416 /*ARGSUSED*/ 417 int 418 grf_mode(gp, cmd, arg, a2, a3) 419 struct grf_softc *gp; 420 int cmd, a2, a3; 421 void *arg; 422 { 423 switch (cmd) { 424 case GM_GRFON: 425 /* 426 * Get in sync with view, ite might have changed it. 427 */ 428 grf_viewsync(gp); 429 viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, NOPROC); 430 return(0); 431 case GM_GRFOFF: 432 viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, NOPROC); 433 return(0); 434 case GM_GRFCONFIG: 435 default: 436 break; 437 } 438 return(EINVAL); 439 } 440 #endif /* NGRF > 0 */ 441
Indexes created Wed Sep 24 15:09:51 GMT 2025