grf.c revision 1.25.4.3
1 /* $NetBSD: grf.c,v 1.25.4.3 2002/06/23 17:35:15 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 #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 cdev_decl(grf); 90 91 int grfon __P((dev_t)); 92 int grfoff __P((dev_t)); 93 int grfsinfo __P((dev_t, struct grfdyninfo *)); 94 #ifdef BANKEDDEVPAGER 95 int grfbanked_get __P((dev_t, off_t, int)); 96 int grfbanked_cur __P((dev_t)); 97 int grfbanked_set __P((dev_t, int)); 98 #endif 99 100 int grfbusprint __P((void *auxp, const char *)); 101 int grfbusmatch __P((struct device *, struct cfdata *, void *)); 102 void grfbusattach __P((struct device *, struct device *, void *)); 103 104 /* 105 * pointers to grf drivers device structs 106 */ 107 struct grf_softc *grfsp[NGRF]; /* XXX */ 108 109 struct cfattach grfbus_ca = { 110 sizeof(struct device), grfbusmatch, grfbusattach 111 }; 112 113 extern struct cfdriver grfbus_cd; 114 115 /* 116 * only used in console init. 117 */ 118 static struct cfdata *cfdata_gbus = NULL; 119 120 int 121 grfbusmatch(pdp, cfp, auxp) 122 struct device *pdp; 123 struct cfdata *cfp; 124 void *auxp; 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 if (gp == NULL) 176 return(ENXIO); 177 178 if ((gp->g_flags & GF_ALIVE) == 0) 179 return(ENXIO); 180 181 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 182 return(EBUSY); 183 grf_viewsync(gp); 184 185 return(0); 186 } 187 188 /*ARGSUSED*/ 189 int 190 grfclose(dev, flags, mode, p) 191 dev_t dev; 192 int flags; 193 int mode; 194 struct proc *p; 195 { 196 struct grf_softc *gp; 197 198 gp = grfsp[GRFUNIT(dev)]; 199 (void)grfoff(dev); 200 gp->g_flags &= GF_ALIVE; 201 return(0); 202 } 203 204 /*ARGSUSED*/ 205 int 206 grfioctl(dev, cmd, data, flag, p) 207 dev_t dev; 208 u_long cmd; 209 int flag; 210 caddr_t data; 211 struct proc *p; 212 { 213 struct grf_softc *gp; 214 int error; 215 216 gp = grfsp[GRFUNIT(dev)]; 217 error = 0; 218 219 switch (cmd) { 220 case OGRFIOCGINFO: 221 /* argl.. no bank-member.. */ 222 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 223 break; 224 case GRFIOCGINFO: 225 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 226 break; 227 case GRFIOCON: 228 error = grfon(dev); 229 break; 230 case GRFIOCOFF: 231 error = grfoff(dev); 232 break; 233 case GRFIOCSINFO: 234 error = grfsinfo(dev, (struct grfdyninfo *) data); 235 break; 236 case GRFGETVMODE: 237 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 238 case GRFSETVMODE: 239 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 240 if (error == 0 && gp->g_itedev) 241 ite_reinit(gp->g_itedev); 242 break; 243 case GRFGETNUMVM: 244 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 245 /* 246 * these are all hardware dependant, and have to be resolved 247 * in the respective driver. 248 */ 249 case GRFIOCPUTCMAP: 250 case GRFIOCGETCMAP: 251 case GRFIOCSSPRITEPOS: 252 case GRFIOCGSPRITEPOS: 253 case GRFIOCSSPRITEINF: 254 case GRFIOCGSPRITEINF: 255 case GRFIOCGSPRITEMAX: 256 default: 257 /* 258 * check to see whether it's a command recognized by the 259 * view code. 260 */ 261 return(viewioctl(gp->g_viewdev, cmd, data, flag, p)); 262 error = EINVAL; 263 break; 264 265 } 266 return(error); 267 } 268 269 /*ARGSUSED*/ 270 int 271 grfpoll(dev, events, p) 272 dev_t dev; 273 int events; 274 struct proc *p; 275 { 276 int revents = 0; 277 278 if (events & (POLLOUT | POLLWRNORM)) 279 revents |= events & (POLLOUT | POLLWRNORM); 280 return (revents); 281 } 282 283 int 284 grfkqfilter(dev_t dev, struct knote *kn) 285 { 286 287 /* XXXLUKEM (thorpej): not supported -- why is poll? */ 288 return (1); 289 } 290 291 /* 292 * map the contents of a graphics display card into process' 293 * memory space. 294 */ 295 paddr_t 296 grfmmap(dev, off, prot) 297 dev_t dev; 298 off_t off; 299 int prot; 300 { 301 struct grf_softc *gp; 302 struct grfinfo *gi; 303 u_int vgabase, linbase; 304 305 gp = grfsp[GRFUNIT(dev)]; 306 gi = &gp->g_display; 307 308 vgabase = gi->gd_vgabase; 309 linbase = gi->gd_linbase; 310 311 /* 312 * control registers 313 */ 314 if (off >= 0 && off < gi->gd_regsize) 315 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 316 317 /* 318 * VGA memory 319 */ 320 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 321 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 322 323 /* 324 * frame buffer 325 */ 326 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 327 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 328 return(-1); 329 } 330 331 int 332 grfon(dev) 333 dev_t dev; 334 { 335 struct grf_softc *gp; 336 337 gp = grfsp[GRFUNIT(dev)]; 338 339 if (gp->g_flags & GF_GRFON) 340 return(0); 341 342 gp->g_flags |= GF_GRFON; 343 if (gp->g_itedev != NODEV) 344 ite_off(gp->g_itedev, 3); 345 346 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 347 NULL, 0, 0)); 348 } 349 350 int 351 grfoff(dev) 352 dev_t dev; 353 { 354 struct grf_softc *gp; 355 int error; 356 357 gp = grfsp[GRFUNIT(dev)]; 358 359 if ((gp->g_flags & GF_GRFON) == 0) 360 return(0); 361 362 gp->g_flags &= ~GF_GRFON; 363 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 364 NULL, 0, 0); 365 366 /* 367 * Closely tied together no X's 368 */ 369 if (gp->g_itedev != NODEV) 370 ite_on(gp->g_itedev, 2); 371 372 return(error); 373 } 374 375 int 376 grfsinfo(dev, dyninfo) 377 dev_t dev; 378 struct grfdyninfo *dyninfo; 379 { 380 struct grf_softc *gp; 381 int error; 382 383 gp = grfsp[GRFUNIT(dev)]; 384 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 385 386 /* 387 * Closely tied together no X's 388 */ 389 if (gp->g_itedev != NODEV) 390 ite_reinit(gp->g_itedev); 391 return(error); 392 } 393 394 /* 395 * Get the grf-info in sync with underlying view. 396 */ 397 void 398 grf_viewsync(gp) 399 struct grf_softc *gp; 400 { 401 struct view_size vs; 402 bmap_t bm; 403 struct grfinfo *gi; 404 405 gi = &gp->g_display; 406 407 viewioctl(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 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(viewioctl(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, 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 switch (cmd) { 455 case GM_GRFON: 456 /* 457 * Get in sync with view, ite might have changed it. 458 */ 459 grf_viewsync(gp); 460 viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, NOPROC); 461 return(0); 462 case GM_GRFOFF: 463 viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, NOPROC); 464 return(0); 465 case GM_GRFCONFIG: 466 default: 467 break; 468 } 469 return(EPASSTHROUGH); 470 } 471 #endif /* NGRF > 0 */ 472
Indexes created Tue Sep 30 17:09:57 GMT 2025