grf.c revision 1.27
1 /* $NetBSD: grf.c,v 1.27 2002/09/06 13:18:43 gehenna 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 struct cfattach grfbus_ca = { 103 sizeof(struct device), grfbusmatch, grfbusattach 104 }; 105 106 extern struct cfdriver grfbus_cd; 107 108 dev_type_open(grfopen); 109 dev_type_close(grfclose); 110 dev_type_ioctl(grfioctl); 111 dev_type_poll(grfpoll); 112 dev_type_mmap(grfmmap); 113 114 const struct cdevsw grf_cdevsw = { 115 grfopen, grfclose, noread, nowrite, grfioctl, 116 nostop, notty, grfpoll, grfmmap, 117 }; 118 119 /* 120 * only used in console init. 121 */ 122 static struct cfdata *cfdata_gbus = NULL; 123 124 int 125 grfbusmatch(pdp, cfp, auxp) 126 struct device *pdp; 127 struct cfdata *cfp; 128 void *auxp; 129 { 130 if(strcmp(auxp, grfbus_cd.cd_name)) 131 return(0); 132 133 if(atari_realconfig == 0) 134 cfdata_gbus = cfp; 135 return(1); /* Always there */ 136 } 137 138 void 139 grfbusattach(pdp, dp, auxp) 140 struct device *pdp, *dp; 141 void *auxp; 142 { 143 grf_auxp_t grf_auxp; 144 145 grf_auxp.busprint = grfbusprint; 146 grf_auxp.from_bus_match = 1; 147 148 if(dp == NULL) /* Console init */ 149 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 150 else { 151 printf("\n"); 152 config_found(dp, (void*)&grf_auxp, grfbusprint); 153 } 154 } 155 156 int 157 grfbusprint(auxp, name) 158 void *auxp; 159 const char *name; 160 { 161 if(name == NULL) 162 return(UNCONF); 163 return(QUIET); 164 } 165 166 /*ARGSUSED*/ 167 int 168 grfopen(dev, flags, devtype, p) 169 dev_t dev; 170 int flags, devtype; 171 struct proc *p; 172 { 173 struct grf_softc *gp; 174 175 if (GRFUNIT(dev) >= NGRF) 176 return(ENXIO); 177 178 gp = grfsp[GRFUNIT(dev)]; 179 if (gp == NULL) 180 return(ENXIO); 181 182 if ((gp->g_flags & GF_ALIVE) == 0) 183 return(ENXIO); 184 185 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 186 return(EBUSY); 187 grf_viewsync(gp); 188 189 return(0); 190 } 191 192 /*ARGSUSED*/ 193 int 194 grfclose(dev, flags, mode, p) 195 dev_t dev; 196 int flags; 197 int mode; 198 struct proc *p; 199 { 200 struct grf_softc *gp; 201 202 gp = grfsp[GRFUNIT(dev)]; 203 (void)grfoff(dev); 204 gp->g_flags &= GF_ALIVE; 205 return(0); 206 } 207 208 /*ARGSUSED*/ 209 int 210 grfioctl(dev, cmd, data, flag, p) 211 dev_t dev; 212 u_long cmd; 213 int flag; 214 caddr_t data; 215 struct proc *p; 216 { 217 struct grf_softc *gp; 218 int error; 219 extern const struct cdevsw view_cdevsw; 220 221 gp = grfsp[GRFUNIT(dev)]; 222 error = 0; 223 224 switch (cmd) { 225 case OGRFIOCGINFO: 226 /* argl.. no bank-member.. */ 227 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 228 break; 229 case GRFIOCGINFO: 230 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 231 break; 232 case GRFIOCON: 233 error = grfon(dev); 234 break; 235 case GRFIOCOFF: 236 error = grfoff(dev); 237 break; 238 case GRFIOCSINFO: 239 error = grfsinfo(dev, (struct grfdyninfo *) data); 240 break; 241 case GRFGETVMODE: 242 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 243 case GRFSETVMODE: 244 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 245 if (error == 0 && gp->g_itedev) 246 ite_reinit(gp->g_itedev); 247 break; 248 case GRFGETNUMVM: 249 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 250 /* 251 * these are all hardware dependant, and have to be resolved 252 * in the respective driver. 253 */ 254 case GRFIOCPUTCMAP: 255 case GRFIOCGETCMAP: 256 case GRFIOCSSPRITEPOS: 257 case GRFIOCGSPRITEPOS: 258 case GRFIOCSSPRITEINF: 259 case GRFIOCGSPRITEINF: 260 case GRFIOCGSPRITEMAX: 261 default: 262 /* 263 * check to see whether it's a command recognized by the 264 * view code. 265 */ 266 return((*view_cdevsw.d_ioctl)(gp->g_viewdev, cmd, data, flag, 267 p)); 268 error = EINVAL; 269 break; 270 271 } 272 return(error); 273 } 274 275 /*ARGSUSED*/ 276 int 277 grfpoll(dev, events, p) 278 dev_t dev; 279 int events; 280 struct proc *p; 281 { 282 int revents = 0; 283 284 if (events & (POLLOUT | POLLWRNORM)) 285 revents |= events & (POLLOUT | POLLWRNORM); 286 return (revents); 287 } 288 289 /* 290 * map the contents of a graphics display card into process' 291 * memory space. 292 */ 293 paddr_t 294 grfmmap(dev, off, prot) 295 dev_t dev; 296 off_t off; 297 int prot; 298 { 299 struct grf_softc *gp; 300 struct grfinfo *gi; 301 u_int vgabase, linbase; 302 303 gp = grfsp[GRFUNIT(dev)]; 304 gi = &gp->g_display; 305 306 vgabase = gi->gd_vgabase; 307 linbase = gi->gd_linbase; 308 309 /* 310 * control registers 311 */ 312 if (off >= 0 && off < gi->gd_regsize) 313 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 314 315 /* 316 * VGA memory 317 */ 318 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 319 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 320 321 /* 322 * frame buffer 323 */ 324 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 325 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 326 return(-1); 327 } 328 329 int 330 grfon(dev) 331 dev_t dev; 332 { 333 struct grf_softc *gp; 334 335 gp = grfsp[GRFUNIT(dev)]; 336 337 if (gp->g_flags & GF_GRFON) 338 return(0); 339 340 gp->g_flags |= GF_GRFON; 341 if (gp->g_itedev != NODEV) 342 ite_off(gp->g_itedev, 3); 343 344 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 345 NULL, 0, 0)); 346 } 347 348 int 349 grfoff(dev) 350 dev_t dev; 351 { 352 struct grf_softc *gp; 353 int error; 354 355 gp = grfsp[GRFUNIT(dev)]; 356 357 if ((gp->g_flags & GF_GRFON) == 0) 358 return(0); 359 360 gp->g_flags &= ~GF_GRFON; 361 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 362 NULL, 0, 0); 363 364 /* 365 * Closely tied together no X's 366 */ 367 if (gp->g_itedev != NODEV) 368 ite_on(gp->g_itedev, 2); 369 370 return(error); 371 } 372 373 int 374 grfsinfo(dev, dyninfo) 375 dev_t dev; 376 struct grfdyninfo *dyninfo; 377 { 378 struct grf_softc *gp; 379 int error; 380 381 gp = grfsp[GRFUNIT(dev)]; 382 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 383 384 /* 385 * Closely tied together no X's 386 */ 387 if (gp->g_itedev != NODEV) 388 ite_reinit(gp->g_itedev); 389 return(error); 390 } 391 392 /* 393 * Get the grf-info in sync with underlying view. 394 */ 395 void 396 grf_viewsync(gp) 397 struct grf_softc *gp; 398 { 399 struct view_size vs; 400 bmap_t bm; 401 struct grfinfo *gi; 402 extern const struct cdevsw view_cdevsw; 403 404 gi = &gp->g_display; 405 406 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 407 0, NOPROC); 408 409 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 410 411 gi->gd_fbaddr = bm.hw_address; 412 gi->gd_fbsize = bm.phys_mappable; 413 gi->gd_linbase = bm.lin_base; 414 gi->gd_regaddr = bm.hw_regs; 415 gi->gd_regsize = bm.reg_size; 416 gi->gd_vgaaddr = bm.vga_address; 417 gi->gd_vgasize = bm.vga_mappable; 418 gi->gd_vgabase = bm.vga_base; 419 420 if((*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, 421 NOPROC)) { 422 /* 423 * fill in some default values... 424 * XXX: Should _never_ happen 425 */ 426 vs.width = 640; 427 vs.height = 400; 428 vs.depth = 1; 429 } 430 gi->gd_colors = 1 << vs.depth; 431 gi->gd_planes = vs.depth; 432 433 gi->gd_fbwidth = vs.width; 434 gi->gd_fbheight = vs.height; 435 gi->gd_dyn.gdi_fbx = 0; 436 gi->gd_dyn.gdi_fby = 0; 437 gi->gd_dyn.gdi_dwidth = vs.width; 438 gi->gd_dyn.gdi_dheight = vs.height; 439 gi->gd_dyn.gdi_dx = 0; 440 gi->gd_dyn.gdi_dy = 0; 441 } 442 443 /* 444 * Change the mode of the display. 445 * Right now all we can do is grfon/grfoff. 446 * Return a UNIX error number or 0 for success. 447 */ 448 /*ARGSUSED*/ 449 int 450 grf_mode(gp, cmd, arg, a2, a3) 451 struct grf_softc *gp; 452 int cmd, a2, a3; 453 void *arg; 454 { 455 extern const struct cdevsw view_cdevsw; 456 457 switch (cmd) { 458 case GM_GRFON: 459 /* 460 * Get in sync with view, ite might have changed it. 461 */ 462 grf_viewsync(gp); 463 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCDISPLAY, 464 NULL, 0, NOPROC); 465 return(0); 466 case GM_GRFOFF: 467 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCREMOVE, 468 NULL, 0, NOPROC); 469 return(0); 470 case GM_GRFCONFIG: 471 default: 472 break; 473 } 474 return(EPASSTHROUGH); 475 } 476 #endif /* NGRF > 0 */ 477
Indexes created Thu Sep 25 16:09:42 GMT 2025