grf.c revision 1.24
1 /* $NetBSD: grf.c,v 1.24 2000/06/26 14:20:40 mrg 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 #include <vm/vm.h> 64 #include <machine/cpu.h> 65 #include <atari/atari/device.h> 66 #include <atari/dev/grfioctl.h> 67 #include <atari/dev/grfabs_reg.h> 68 #include <atari/dev/grfvar.h> 69 #include <atari/dev/itevar.h> 70 #include <atari/dev/viewioctl.h> 71 #include <atari/dev/viewvar.h> 72 73 #include "grfcc.h" 74 #include "grfet.h" 75 #define NGRF (NGRFCC + NGRFET) 76 77 #if NGRF > 0 78 79 #include "ite.h" 80 #if NITE == 0 81 #define ite_on(u,f) 82 #define ite_off(u,f) 83 #define ite_reinit(d) 84 #endif 85 86 int grfon __P((dev_t)); 87 int grfoff __P((dev_t)); 88 int grfsinfo __P((dev_t, struct grfdyninfo *)); 89 #ifdef BANKEDDEVPAGER 90 int grfbanked_get __P((dev_t, off_t, int)); 91 int grfbanked_cur __P((dev_t)); 92 int grfbanked_set __P((dev_t, int)); 93 #endif 94 95 int grfbusprint __P((void *auxp, const char *)); 96 int grfbusmatch __P((struct device *, struct cfdata *, void *)); 97 void grfbusattach __P((struct device *, struct device *, void *)); 98 99 /* 100 * pointers to grf drivers device structs 101 */ 102 struct grf_softc *grfsp[NGRF]; /* XXX */ 103 104 struct cfattach grfbus_ca = { 105 sizeof(struct device), grfbusmatch, grfbusattach 106 }; 107 108 extern struct cfdriver grfbus_cd; 109 110 /* 111 * only used in console init. 112 */ 113 static struct cfdata *cfdata_gbus = NULL; 114 115 int 116 grfbusmatch(pdp, cfp, auxp) 117 struct device *pdp; 118 struct cfdata *cfp; 119 void *auxp; 120 { 121 if(strcmp(auxp, grfbus_cd.cd_name)) 122 return(0); 123 124 if(atari_realconfig == 0) 125 cfdata_gbus = cfp; 126 return(1); /* Always there */ 127 } 128 129 void 130 grfbusattach(pdp, dp, auxp) 131 struct device *pdp, *dp; 132 void *auxp; 133 { 134 grf_auxp_t grf_auxp; 135 136 grf_auxp.busprint = grfbusprint; 137 grf_auxp.from_bus_match = 1; 138 139 if(dp == NULL) /* Console init */ 140 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 141 else { 142 printf("\n"); 143 config_found(dp, (void*)&grf_auxp, grfbusprint); 144 } 145 } 146 147 int 148 grfbusprint(auxp, name) 149 void *auxp; 150 const char *name; 151 { 152 if(name == NULL) 153 return(UNCONF); 154 return(QUIET); 155 } 156 157 /*ARGSUSED*/ 158 int 159 grfopen(dev, flags, devtype, p) 160 dev_t dev; 161 int flags, devtype; 162 struct proc *p; 163 { 164 struct grf_softc *gp; 165 166 if (GRFUNIT(dev) >= NGRF) 167 return(ENXIO); 168 169 gp = grfsp[GRFUNIT(dev)]; 170 if (gp == NULL) 171 return(ENXIO); 172 173 if ((gp->g_flags & GF_ALIVE) == 0) 174 return(ENXIO); 175 176 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 177 return(EBUSY); 178 grf_viewsync(gp); 179 180 return(0); 181 } 182 183 /*ARGSUSED*/ 184 int 185 grfclose(dev, flags, mode, p) 186 dev_t dev; 187 int flags; 188 int mode; 189 struct proc *p; 190 { 191 struct grf_softc *gp; 192 193 gp = grfsp[GRFUNIT(dev)]; 194 (void)grfoff(dev); 195 gp->g_flags &= GF_ALIVE; 196 return(0); 197 } 198 199 /*ARGSUSED*/ 200 int 201 grfioctl(dev, cmd, data, flag, p) 202 dev_t dev; 203 u_long cmd; 204 int flag; 205 caddr_t data; 206 struct proc *p; 207 { 208 struct grf_softc *gp; 209 int error; 210 211 gp = grfsp[GRFUNIT(dev)]; 212 error = 0; 213 214 switch (cmd) { 215 case OGRFIOCGINFO: 216 /* argl.. no bank-member.. */ 217 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 218 break; 219 case GRFIOCGINFO: 220 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 221 break; 222 case GRFIOCON: 223 error = grfon(dev); 224 break; 225 case GRFIOCOFF: 226 error = grfoff(dev); 227 break; 228 case GRFIOCSINFO: 229 error = grfsinfo(dev, (struct grfdyninfo *) data); 230 break; 231 case GRFGETVMODE: 232 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 233 case GRFSETVMODE: 234 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 235 if (error == 0 && gp->g_itedev) 236 ite_reinit(gp->g_itedev); 237 break; 238 case GRFGETNUMVM: 239 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 240 /* 241 * these are all hardware dependant, and have to be resolved 242 * in the respective driver. 243 */ 244 case GRFIOCPUTCMAP: 245 case GRFIOCGETCMAP: 246 case GRFIOCSSPRITEPOS: 247 case GRFIOCGSPRITEPOS: 248 case GRFIOCSSPRITEINF: 249 case GRFIOCGSPRITEINF: 250 case GRFIOCGSPRITEMAX: 251 default: 252 /* 253 * check to see whether it's a command recognized by the 254 * view code. 255 */ 256 return(viewioctl(gp->g_viewdev, cmd, data, flag, p)); 257 error = EINVAL; 258 break; 259 260 } 261 return(error); 262 } 263 264 /*ARGSUSED*/ 265 int 266 grfpoll(dev, events, p) 267 dev_t dev; 268 int events; 269 struct proc *p; 270 { 271 int revents = 0; 272 273 if (events & (POLLOUT | POLLWRNORM)) 274 revents |= events & (POLLOUT | POLLWRNORM); 275 return (revents); 276 } 277 278 /* 279 * map the contents of a graphics display card into process' 280 * memory space. 281 */ 282 paddr_t 283 grfmmap(dev, off, prot) 284 dev_t dev; 285 off_t off; 286 int prot; 287 { 288 struct grf_softc *gp; 289 struct grfinfo *gi; 290 u_int vgabase, linbase; 291 292 gp = grfsp[GRFUNIT(dev)]; 293 gi = &gp->g_display; 294 295 vgabase = gi->gd_vgabase; 296 linbase = gi->gd_linbase; 297 298 /* 299 * control registers 300 */ 301 if (off >= 0 && off < gi->gd_regsize) 302 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 303 304 /* 305 * VGA memory 306 */ 307 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 308 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 309 310 /* 311 * frame buffer 312 */ 313 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 314 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 315 return(-1); 316 } 317 318 int 319 grfon(dev) 320 dev_t dev; 321 { 322 struct grf_softc *gp; 323 324 gp = grfsp[GRFUNIT(dev)]; 325 326 if (gp->g_flags & GF_GRFON) 327 return(0); 328 329 gp->g_flags |= GF_GRFON; 330 if (gp->g_itedev != NODEV) 331 ite_off(gp->g_itedev, 3); 332 333 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 334 NULL, 0, 0)); 335 } 336 337 int 338 grfoff(dev) 339 dev_t dev; 340 { 341 struct grf_softc *gp; 342 int error; 343 344 gp = grfsp[GRFUNIT(dev)]; 345 346 if ((gp->g_flags & GF_GRFON) == 0) 347 return(0); 348 349 gp->g_flags &= ~GF_GRFON; 350 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 351 NULL, 0, 0); 352 353 /* 354 * Closely tied together no X's 355 */ 356 if (gp->g_itedev != NODEV) 357 ite_on(gp->g_itedev, 2); 358 359 return(error); 360 } 361 362 int 363 grfsinfo(dev, dyninfo) 364 dev_t dev; 365 struct grfdyninfo *dyninfo; 366 { 367 struct grf_softc *gp; 368 int error; 369 370 gp = grfsp[GRFUNIT(dev)]; 371 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 372 373 /* 374 * Closely tied together no X's 375 */ 376 if (gp->g_itedev != NODEV) 377 ite_reinit(gp->g_itedev); 378 return(error); 379 } 380 381 /* 382 * Get the grf-info in sync with underlying view. 383 */ 384 void 385 grf_viewsync(gp) 386 struct grf_softc *gp; 387 { 388 struct view_size vs; 389 bmap_t bm; 390 struct grfinfo *gi; 391 392 gi = &gp->g_display; 393 394 viewioctl(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 0, NOPROC); 395 396 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 397 398 gi->gd_fbaddr = bm.hw_address; 399 gi->gd_fbsize = bm.phys_mappable; 400 gi->gd_linbase = bm.lin_base; 401 gi->gd_regaddr = bm.hw_regs; 402 gi->gd_regsize = bm.reg_size; 403 gi->gd_vgaaddr = bm.vga_address; 404 gi->gd_vgasize = bm.vga_mappable; 405 gi->gd_vgabase = bm.vga_base; 406 407 if(viewioctl(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, NOPROC)) { 408 /* 409 * fill in some default values... 410 * XXX: Should _never_ happen 411 */ 412 vs.width = 640; 413 vs.height = 400; 414 vs.depth = 1; 415 } 416 gi->gd_colors = 1 << vs.depth; 417 gi->gd_planes = vs.depth; 418 419 gi->gd_fbwidth = vs.width; 420 gi->gd_fbheight = vs.height; 421 gi->gd_dyn.gdi_fbx = 0; 422 gi->gd_dyn.gdi_fby = 0; 423 gi->gd_dyn.gdi_dwidth = vs.width; 424 gi->gd_dyn.gdi_dheight = vs.height; 425 gi->gd_dyn.gdi_dx = 0; 426 gi->gd_dyn.gdi_dy = 0; 427 } 428 429 /* 430 * Change the mode of the display. 431 * Right now all we can do is grfon/grfoff. 432 * Return a UNIX error number or 0 for success. 433 */ 434 /*ARGSUSED*/ 435 int 436 grf_mode(gp, cmd, arg, a2, a3) 437 struct grf_softc *gp; 438 int cmd, a2, a3; 439 void *arg; 440 { 441 switch (cmd) { 442 case GM_GRFON: 443 /* 444 * Get in sync with view, ite might have changed it. 445 */ 446 grf_viewsync(gp); 447 viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, NOPROC); 448 return(0); 449 case GM_GRFOFF: 450 viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, NOPROC); 451 return(0); 452 case GM_GRFCONFIG: 453 default: 454 break; 455 } 456 return(EINVAL); 457 } 458 #endif /* NGRF > 0 */ 459
Indexes created Tue Sep 30 20:09:53 GMT 2025