grf.c revision 1.31
1 /* $NetBSD: grf.c,v 1.31 2002/10/23 09:10:51 jdolecek 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 63 #include <machine/cpu.h> 64 65 #include <uvm/uvm_extern.h> 66 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 92 int grfbusprint __P((void *auxp, const char *)); 93 int grfbusmatch __P((struct device *, struct cfdata *, void *)); 94 void grfbusattach __P((struct device *, struct device *, void *)); 95 96 /* 97 * pointers to grf drivers device structs 98 */ 99 struct grf_softc *grfsp[NGRF]; /* XXX */ 100 101 CFATTACH_DECL(grfbus, sizeof(struct device), 102 grfbusmatch, grfbusattach, NULL, NULL); 103 104 extern struct cfdriver grfbus_cd; 105 106 dev_type_open(grfopen); 107 dev_type_close(grfclose); 108 dev_type_ioctl(grfioctl); 109 dev_type_mmap(grfmmap); 110 111 const struct cdevsw grf_cdevsw = { 112 grfopen, grfclose, noread, nowrite, grfioctl, 113 nostop, notty, nopoll, grfmmap, nokqfilter, 114 }; 115 116 /* 117 * only used in console init. 118 */ 119 static struct cfdata *cfdata_gbus = NULL; 120 121 int 122 grfbusmatch(pdp, cfp, auxp) 123 struct device *pdp; 124 struct cfdata *cfp; 125 void *auxp; 126 { 127 if(strcmp(auxp, grfbus_cd.cd_name)) 128 return(0); 129 130 if(atari_realconfig == 0) 131 cfdata_gbus = cfp; 132 return(1); /* Always there */ 133 } 134 135 void 136 grfbusattach(pdp, dp, auxp) 137 struct device *pdp, *dp; 138 void *auxp; 139 { 140 grf_auxp_t grf_auxp; 141 142 grf_auxp.busprint = grfbusprint; 143 grf_auxp.from_bus_match = 1; 144 145 if(dp == NULL) /* Console init */ 146 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 147 else { 148 printf("\n"); 149 config_found(dp, (void*)&grf_auxp, grfbusprint); 150 } 151 } 152 153 int 154 grfbusprint(auxp, name) 155 void *auxp; 156 const char *name; 157 { 158 if(name == NULL) 159 return(UNCONF); 160 return(QUIET); 161 } 162 163 /*ARGSUSED*/ 164 int 165 grfopen(dev, flags, devtype, p) 166 dev_t dev; 167 int flags, devtype; 168 struct proc *p; 169 { 170 struct grf_softc *gp; 171 172 if (GRFUNIT(dev) >= NGRF) 173 return(ENXIO); 174 175 gp = grfsp[GRFUNIT(dev)]; 176 if (gp == NULL) 177 return(ENXIO); 178 179 if ((gp->g_flags & GF_ALIVE) == 0) 180 return(ENXIO); 181 182 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 183 return(EBUSY); 184 grf_viewsync(gp); 185 186 return(0); 187 } 188 189 /*ARGSUSED*/ 190 int 191 grfclose(dev, flags, mode, p) 192 dev_t dev; 193 int flags; 194 int mode; 195 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, cmd, data, flag, p) 208 dev_t dev; 209 u_long cmd; 210 int flag; 211 caddr_t data; 212 struct proc *p; 213 { 214 struct grf_softc *gp; 215 int error; 216 extern const struct cdevsw view_cdevsw; 217 218 gp = grfsp[GRFUNIT(dev)]; 219 error = 0; 220 221 switch (cmd) { 222 case OGRFIOCGINFO: 223 /* argl.. no bank-member.. */ 224 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 225 break; 226 case GRFIOCGINFO: 227 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 228 break; 229 case GRFIOCON: 230 error = grfon(dev); 231 break; 232 case GRFIOCOFF: 233 error = grfoff(dev); 234 break; 235 case GRFIOCSINFO: 236 error = grfsinfo(dev, (struct grfdyninfo *) data); 237 break; 238 case GRFGETVMODE: 239 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 240 case GRFSETVMODE: 241 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 242 if (error == 0 && gp->g_itedev) 243 ite_reinit(gp->g_itedev); 244 break; 245 case GRFGETNUMVM: 246 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 247 /* 248 * these are all hardware dependant, and have to be resolved 249 * in the respective driver. 250 */ 251 case GRFIOCPUTCMAP: 252 case GRFIOCGETCMAP: 253 case GRFIOCSSPRITEPOS: 254 case GRFIOCGSPRITEPOS: 255 case GRFIOCSSPRITEINF: 256 case GRFIOCGSPRITEINF: 257 case GRFIOCGSPRITEMAX: 258 default: 259 /* 260 * check to see whether it's a command recognized by the 261 * view code. 262 */ 263 return((*view_cdevsw.d_ioctl)(gp->g_viewdev, cmd, data, flag, 264 p)); 265 error = EINVAL; 266 break; 267 268 } 269 return(error); 270 } 271 272 /* 273 * map the contents of a graphics display card into process' 274 * memory space. 275 */ 276 paddr_t 277 grfmmap(dev, off, prot) 278 dev_t dev; 279 off_t off; 280 int prot; 281 { 282 struct grf_softc *gp; 283 struct grfinfo *gi; 284 u_int vgabase, linbase; 285 286 gp = grfsp[GRFUNIT(dev)]; 287 gi = &gp->g_display; 288 289 vgabase = gi->gd_vgabase; 290 linbase = gi->gd_linbase; 291 292 /* 293 * control registers 294 */ 295 if (off >= 0 && off < gi->gd_regsize) 296 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 297 298 /* 299 * VGA memory 300 */ 301 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 302 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 303 304 /* 305 * frame buffer 306 */ 307 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 308 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 309 return(-1); 310 } 311 312 int 313 grfon(dev) 314 dev_t dev; 315 { 316 struct grf_softc *gp; 317 318 gp = grfsp[GRFUNIT(dev)]; 319 320 if (gp->g_flags & GF_GRFON) 321 return(0); 322 323 gp->g_flags |= GF_GRFON; 324 if (gp->g_itedev != NODEV) 325 ite_off(gp->g_itedev, 3); 326 327 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 328 NULL, 0, 0)); 329 } 330 331 int 332 grfoff(dev) 333 dev_t dev; 334 { 335 struct grf_softc *gp; 336 int error; 337 338 gp = grfsp[GRFUNIT(dev)]; 339 340 if ((gp->g_flags & GF_GRFON) == 0) 341 return(0); 342 343 gp->g_flags &= ~GF_GRFON; 344 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 345 NULL, 0, 0); 346 347 /* 348 * Closely tied together no X's 349 */ 350 if (gp->g_itedev != NODEV) 351 ite_on(gp->g_itedev, 2); 352 353 return(error); 354 } 355 356 int 357 grfsinfo(dev, dyninfo) 358 dev_t dev; 359 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 /* 376 * Get the grf-info in sync with underlying view. 377 */ 378 void 379 grf_viewsync(gp) 380 struct grf_softc *gp; 381 { 382 struct view_size vs; 383 bmap_t bm; 384 struct grfinfo *gi; 385 extern const struct cdevsw view_cdevsw; 386 387 gi = &gp->g_display; 388 389 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 390 0, NOPROC); 391 392 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 393 394 gi->gd_fbaddr = bm.hw_address; 395 gi->gd_fbsize = bm.phys_mappable; 396 gi->gd_linbase = bm.lin_base; 397 gi->gd_regaddr = bm.hw_regs; 398 gi->gd_regsize = bm.reg_size; 399 gi->gd_vgaaddr = bm.vga_address; 400 gi->gd_vgasize = bm.vga_mappable; 401 gi->gd_vgabase = bm.vga_base; 402 403 if((*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, 404 NOPROC)) { 405 /* 406 * fill in some default values... 407 * XXX: Should _never_ happen 408 */ 409 vs.width = 640; 410 vs.height = 400; 411 vs.depth = 1; 412 } 413 gi->gd_colors = 1 << vs.depth; 414 gi->gd_planes = vs.depth; 415 416 gi->gd_fbwidth = vs.width; 417 gi->gd_fbheight = vs.height; 418 gi->gd_dyn.gdi_fbx = 0; 419 gi->gd_dyn.gdi_fby = 0; 420 gi->gd_dyn.gdi_dwidth = vs.width; 421 gi->gd_dyn.gdi_dheight = vs.height; 422 gi->gd_dyn.gdi_dx = 0; 423 gi->gd_dyn.gdi_dy = 0; 424 } 425 426 /* 427 * Change the mode of the display. 428 * Right now all we can do is grfon/grfoff. 429 * Return a UNIX error number or 0 for success. 430 */ 431 /*ARGSUSED*/ 432 int 433 grf_mode(gp, cmd, arg, a2, a3) 434 struct grf_softc *gp; 435 int cmd, a2, a3; 436 void *arg; 437 { 438 extern const struct cdevsw view_cdevsw; 439 440 switch (cmd) { 441 case GM_GRFON: 442 /* 443 * Get in sync with view, ite might have changed it. 444 */ 445 grf_viewsync(gp); 446 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCDISPLAY, 447 NULL, 0, NOPROC); 448 return(0); 449 case GM_GRFOFF: 450 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCREMOVE, 451 NULL, 0, NOPROC); 452 return(0); 453 case GM_GRFCONFIG: 454 default: 455 break; 456 } 457 return(EPASSTHROUGH); 458 } 459 #endif /* NGRF > 0 */ 460
Indexes created Wed Sep 24 02:09:48 GMT 2025