grf.c revision 1.29
1 /* $NetBSD: grf.c,v 1.29 2002/10/02 05:04:25 thorpej 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 <sys/poll.h> 63 64 #include <machine/cpu.h> 65 66 #include <uvm/uvm_extern.h> 67 68 #include <atari/atari/device.h> 69 #include <atari/dev/grfioctl.h> 70 #include <atari/dev/grfabs_reg.h> 71 #include <atari/dev/grfvar.h> 72 #include <atari/dev/itevar.h> 73 #include <atari/dev/viewioctl.h> 74 #include <atari/dev/viewvar.h> 75 76 #include "grfcc.h" 77 #include "grfet.h" 78 #define NGRF (NGRFCC + NGRFET) 79 80 #if NGRF > 0 81 82 #include "ite.h" 83 #if NITE == 0 84 #define ite_on(u,f) 85 #define ite_off(u,f) 86 #define ite_reinit(d) 87 #endif 88 89 int grfon __P((dev_t)); 90 int grfoff __P((dev_t)); 91 int grfsinfo __P((dev_t, struct grfdyninfo *)); 92 93 int grfbusprint __P((void *auxp, const char *)); 94 int grfbusmatch __P((struct device *, struct cfdata *, void *)); 95 void grfbusattach __P((struct device *, struct device *, void *)); 96 97 /* 98 * pointers to grf drivers device structs 99 */ 100 struct grf_softc *grfsp[NGRF]; /* XXX */ 101 102 CFATTACH_DECL(grfbus, sizeof(struct device), 103 grfbusmatch, grfbusattach, NULL, NULL); 104 105 extern struct cfdriver grfbus_cd; 106 107 dev_type_open(grfopen); 108 dev_type_close(grfclose); 109 dev_type_ioctl(grfioctl); 110 dev_type_poll(grfpoll); 111 dev_type_mmap(grfmmap); 112 113 const struct cdevsw grf_cdevsw = { 114 grfopen, grfclose, noread, nowrite, grfioctl, 115 nostop, notty, grfpoll, grfmmap, 116 }; 117 118 /* 119 * only used in console init. 120 */ 121 static struct cfdata *cfdata_gbus = NULL; 122 123 int 124 grfbusmatch(pdp, cfp, auxp) 125 struct device *pdp; 126 struct cfdata *cfp; 127 void *auxp; 128 { 129 if(strcmp(auxp, grfbus_cd.cd_name)) 130 return(0); 131 132 if(atari_realconfig == 0) 133 cfdata_gbus = cfp; 134 return(1); /* Always there */ 135 } 136 137 void 138 grfbusattach(pdp, dp, auxp) 139 struct device *pdp, *dp; 140 void *auxp; 141 { 142 grf_auxp_t grf_auxp; 143 144 grf_auxp.busprint = grfbusprint; 145 grf_auxp.from_bus_match = 1; 146 147 if(dp == NULL) /* Console init */ 148 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 149 else { 150 printf("\n"); 151 config_found(dp, (void*)&grf_auxp, grfbusprint); 152 } 153 } 154 155 int 156 grfbusprint(auxp, name) 157 void *auxp; 158 const char *name; 159 { 160 if(name == NULL) 161 return(UNCONF); 162 return(QUIET); 163 } 164 165 /*ARGSUSED*/ 166 int 167 grfopen(dev, flags, devtype, p) 168 dev_t dev; 169 int flags, devtype; 170 struct proc *p; 171 { 172 struct grf_softc *gp; 173 174 if (GRFUNIT(dev) >= NGRF) 175 return(ENXIO); 176 177 gp = grfsp[GRFUNIT(dev)]; 178 if (gp == NULL) 179 return(ENXIO); 180 181 if ((gp->g_flags & GF_ALIVE) == 0) 182 return(ENXIO); 183 184 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 185 return(EBUSY); 186 grf_viewsync(gp); 187 188 return(0); 189 } 190 191 /*ARGSUSED*/ 192 int 193 grfclose(dev, flags, mode, p) 194 dev_t dev; 195 int flags; 196 int mode; 197 struct proc *p; 198 { 199 struct grf_softc *gp; 200 201 gp = grfsp[GRFUNIT(dev)]; 202 (void)grfoff(dev); 203 gp->g_flags &= GF_ALIVE; 204 return(0); 205 } 206 207 /*ARGSUSED*/ 208 int 209 grfioctl(dev, cmd, data, flag, p) 210 dev_t dev; 211 u_long cmd; 212 int flag; 213 caddr_t data; 214 struct proc *p; 215 { 216 struct grf_softc *gp; 217 int error; 218 extern const struct cdevsw view_cdevsw; 219 220 gp = grfsp[GRFUNIT(dev)]; 221 error = 0; 222 223 switch (cmd) { 224 case OGRFIOCGINFO: 225 /* argl.. no bank-member.. */ 226 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 227 break; 228 case GRFIOCGINFO: 229 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 230 break; 231 case GRFIOCON: 232 error = grfon(dev); 233 break; 234 case GRFIOCOFF: 235 error = grfoff(dev); 236 break; 237 case GRFIOCSINFO: 238 error = grfsinfo(dev, (struct grfdyninfo *) data); 239 break; 240 case GRFGETVMODE: 241 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 242 case GRFSETVMODE: 243 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 244 if (error == 0 && gp->g_itedev) 245 ite_reinit(gp->g_itedev); 246 break; 247 case GRFGETNUMVM: 248 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 249 /* 250 * these are all hardware dependant, and have to be resolved 251 * in the respective driver. 252 */ 253 case GRFIOCPUTCMAP: 254 case GRFIOCGETCMAP: 255 case GRFIOCSSPRITEPOS: 256 case GRFIOCGSPRITEPOS: 257 case GRFIOCSSPRITEINF: 258 case GRFIOCGSPRITEINF: 259 case GRFIOCGSPRITEMAX: 260 default: 261 /* 262 * check to see whether it's a command recognized by the 263 * view code. 264 */ 265 return((*view_cdevsw.d_ioctl)(gp->g_viewdev, cmd, data, flag, 266 p)); 267 error = EINVAL; 268 break; 269 270 } 271 return(error); 272 } 273 274 /*ARGSUSED*/ 275 int 276 grfpoll(dev, events, p) 277 dev_t dev; 278 int events; 279 struct proc *p; 280 { 281 int revents = 0; 282 283 if (events & (POLLOUT | POLLWRNORM)) 284 revents |= events & (POLLOUT | POLLWRNORM); 285 return (revents); 286 } 287 288 /* 289 * map the contents of a graphics display card into process' 290 * memory space. 291 */ 292 paddr_t 293 grfmmap(dev, off, prot) 294 dev_t dev; 295 off_t off; 296 int prot; 297 { 298 struct grf_softc *gp; 299 struct grfinfo *gi; 300 u_int vgabase, linbase; 301 302 gp = grfsp[GRFUNIT(dev)]; 303 gi = &gp->g_display; 304 305 vgabase = gi->gd_vgabase; 306 linbase = gi->gd_linbase; 307 308 /* 309 * control registers 310 */ 311 if (off >= 0 && off < gi->gd_regsize) 312 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 313 314 /* 315 * VGA memory 316 */ 317 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 318 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 319 320 /* 321 * frame buffer 322 */ 323 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 324 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 325 return(-1); 326 } 327 328 int 329 grfon(dev) 330 dev_t dev; 331 { 332 struct grf_softc *gp; 333 334 gp = grfsp[GRFUNIT(dev)]; 335 336 if (gp->g_flags & GF_GRFON) 337 return(0); 338 339 gp->g_flags |= GF_GRFON; 340 if (gp->g_itedev != NODEV) 341 ite_off(gp->g_itedev, 3); 342 343 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 344 NULL, 0, 0)); 345 } 346 347 int 348 grfoff(dev) 349 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, dyninfo) 374 dev_t dev; 375 struct grfdyninfo *dyninfo; 376 { 377 struct grf_softc *gp; 378 int error; 379 380 gp = grfsp[GRFUNIT(dev)]; 381 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 382 383 /* 384 * Closely tied together no X's 385 */ 386 if (gp->g_itedev != NODEV) 387 ite_reinit(gp->g_itedev); 388 return(error); 389 } 390 391 /* 392 * Get the grf-info in sync with underlying view. 393 */ 394 void 395 grf_viewsync(gp) 396 struct grf_softc *gp; 397 { 398 struct view_size vs; 399 bmap_t bm; 400 struct grfinfo *gi; 401 extern const struct cdevsw view_cdevsw; 402 403 gi = &gp->g_display; 404 405 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 406 0, NOPROC); 407 408 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 409 410 gi->gd_fbaddr = bm.hw_address; 411 gi->gd_fbsize = bm.phys_mappable; 412 gi->gd_linbase = bm.lin_base; 413 gi->gd_regaddr = bm.hw_regs; 414 gi->gd_regsize = bm.reg_size; 415 gi->gd_vgaaddr = bm.vga_address; 416 gi->gd_vgasize = bm.vga_mappable; 417 gi->gd_vgabase = bm.vga_base; 418 419 if((*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, 420 NOPROC)) { 421 /* 422 * fill in some default values... 423 * XXX: Should _never_ happen 424 */ 425 vs.width = 640; 426 vs.height = 400; 427 vs.depth = 1; 428 } 429 gi->gd_colors = 1 << vs.depth; 430 gi->gd_planes = vs.depth; 431 432 gi->gd_fbwidth = vs.width; 433 gi->gd_fbheight = vs.height; 434 gi->gd_dyn.gdi_fbx = 0; 435 gi->gd_dyn.gdi_fby = 0; 436 gi->gd_dyn.gdi_dwidth = vs.width; 437 gi->gd_dyn.gdi_dheight = vs.height; 438 gi->gd_dyn.gdi_dx = 0; 439 gi->gd_dyn.gdi_dy = 0; 440 } 441 442 /* 443 * Change the mode of the display. 444 * Right now all we can do is grfon/grfoff. 445 * Return a UNIX error number or 0 for success. 446 */ 447 /*ARGSUSED*/ 448 int 449 grf_mode(gp, cmd, arg, a2, a3) 450 struct grf_softc *gp; 451 int cmd, a2, a3; 452 void *arg; 453 { 454 extern const struct cdevsw view_cdevsw; 455 456 switch (cmd) { 457 case GM_GRFON: 458 /* 459 * Get in sync with view, ite might have changed it. 460 */ 461 grf_viewsync(gp); 462 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCDISPLAY, 463 NULL, 0, NOPROC); 464 return(0); 465 case GM_GRFOFF: 466 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCREMOVE, 467 NULL, 0, NOPROC); 468 return(0); 469 case GM_GRFCONFIG: 470 default: 471 break; 472 } 473 return(EPASSTHROUGH); 474 } 475 #endif /* NGRF > 0 */ 476
Indexes created Thu Sep 25 08:09:54 GMT 2025