grf.c revision 1.25.2.1
1 /* $NetBSD: grf.c,v 1.25.2.1 2001/10/10 11:55:59 fvdl 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 #ifdef BANKEDDEVPAGER 93 int grfbanked_get __P((dev_t, off_t, int)); 94 int grfbanked_cur __P((dev_t)); 95 int grfbanked_set __P((dev_t, int)); 96 #endif 97 98 int grfbusprint __P((void *auxp, const char *)); 99 int grfbusmatch __P((struct device *, struct cfdata *, void *)); 100 void grfbusattach __P((struct device *, struct device *, void *)); 101 102 /* 103 * pointers to grf drivers device structs 104 */ 105 struct grf_softc *grfsp[NGRF]; /* XXX */ 106 107 struct cfattach grfbus_ca = { 108 sizeof(struct device), grfbusmatch, grfbusattach 109 }; 110 111 extern struct cfdriver grfbus_cd; 112 113 /* 114 * only used in console init. 115 */ 116 static struct cfdata *cfdata_gbus = NULL; 117 118 int 119 grfbusmatch(pdp, cfp, auxp) 120 struct device *pdp; 121 struct cfdata *cfp; 122 void *auxp; 123 { 124 if(strcmp(auxp, grfbus_cd.cd_name)) 125 return(0); 126 127 if(atari_realconfig == 0) 128 cfdata_gbus = cfp; 129 return(1); /* Always there */ 130 } 131 132 void 133 grfbusattach(pdp, dp, auxp) 134 struct device *pdp, *dp; 135 void *auxp; 136 { 137 grf_auxp_t grf_auxp; 138 139 grf_auxp.busprint = grfbusprint; 140 grf_auxp.from_bus_match = 1; 141 142 if(dp == NULL) /* Console init */ 143 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 144 else { 145 printf("\n"); 146 config_found(dp, (void*)&grf_auxp, grfbusprint); 147 } 148 } 149 150 int 151 grfbusprint(auxp, name) 152 void *auxp; 153 const char *name; 154 { 155 if(name == NULL) 156 return(UNCONF); 157 return(QUIET); 158 } 159 160 /*ARGSUSED*/ 161 int 162 grfopen(devvp, flags, devtype, p) 163 struct vnode *devvp; 164 int flags, devtype; 165 struct proc *p; 166 { 167 struct grf_softc *gp; 168 dev_t dev; 169 170 dev = vdev_rdev(devvp); 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); 184 185 vdev_setprivdata(devvp, gp); 186 187 grf_viewsync(gp); 188 189 return(0); 190 } 191 192 /*ARGSUSED*/ 193 int 194 grfclose(devvp, flags, mode, p) 195 struct vnode *devvp; 196 int flags; 197 int mode; 198 struct proc *p; 199 { 200 struct grf_softc *gp; 201 dev_t dev; 202 203 gp = vdev_privdata(devvp); 204 dev = vdev_rdev(devvp); 205 206 (void)grfoff(dev); 207 gp->g_flags &= GF_ALIVE; 208 return(0); 209 } 210 211 /*ARGSUSED*/ 212 int 213 grfioctl(devvp, cmd, data, flag, p) 214 struct vnode *devvp; 215 u_long cmd; 216 int flag; 217 caddr_t data; 218 struct proc *p; 219 { 220 struct grf_softc *gp; 221 int error; 222 dev_t dev; 223 224 gp = vdev_privdata(devvp); 225 dev = vdev_rdev(devvp); 226 227 error = 0; 228 229 switch (cmd) { 230 case OGRFIOCGINFO: 231 /* argl.. no bank-member.. */ 232 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 233 break; 234 case GRFIOCGINFO: 235 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 236 break; 237 case GRFIOCON: 238 error = grfon(dev); 239 break; 240 case GRFIOCOFF: 241 error = grfoff(dev); 242 break; 243 case GRFIOCSINFO: 244 error = grfsinfo(dev, (struct grfdyninfo *) data); 245 break; 246 case GRFGETVMODE: 247 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 248 case GRFSETVMODE: 249 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 250 if (error == 0 && gp->g_itedev) 251 ite_reinit(gp->g_itedev); 252 break; 253 case GRFGETNUMVM: 254 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 255 /* 256 * these are all hardware dependant, and have to be resolved 257 * in the respective driver. 258 */ 259 case GRFIOCPUTCMAP: 260 case GRFIOCGETCMAP: 261 case GRFIOCSSPRITEPOS: 262 case GRFIOCGSPRITEPOS: 263 case GRFIOCSSPRITEINF: 264 case GRFIOCGSPRITEINF: 265 case GRFIOCGSPRITEMAX: 266 default: 267 /* 268 * check to see whether it's a command recognized by the 269 * view code. 270 */ 271 return(viewioctl(gp->g_viewdev, cmd, data, flag, p)); 272 error = EINVAL; 273 break; 274 275 } 276 return(error); 277 } 278 279 /*ARGSUSED*/ 280 int 281 grfpoll(devvp, events, p) 282 struct vnode *devvp; 283 int events; 284 struct proc *p; 285 { 286 int revents = 0; 287 288 if (events & (POLLOUT | POLLWRNORM)) 289 revents |= events & (POLLOUT | POLLWRNORM); 290 return (revents); 291 } 292 293 /* 294 * map the contents of a graphics display card into process' 295 * memory space. 296 */ 297 paddr_t 298 grfmmap(devvp, off, prot) 299 struct vnode *devvp; 300 off_t off; 301 int prot; 302 { 303 struct grf_softc *gp; 304 struct grfinfo *gi; 305 u_int vgabase, linbase; 306 307 gp = vdev_privdata(devvp); 308 309 gi = &gp->g_display; 310 311 vgabase = gi->gd_vgabase; 312 linbase = gi->gd_linbase; 313 314 /* 315 * control registers 316 */ 317 if (off >= 0 && off < gi->gd_regsize) 318 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 319 320 /* 321 * VGA memory 322 */ 323 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 324 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 325 326 /* 327 * frame buffer 328 */ 329 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 330 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 331 return(-1); 332 } 333 334 int 335 grfon(dev) 336 dev_t dev; 337 { 338 struct grf_softc *gp; 339 340 gp = grfsp[GRFUNIT(dev)]; 341 342 if (gp->g_flags & GF_GRFON) 343 return(0); 344 345 gp->g_flags |= GF_GRFON; 346 if (gp->g_itedev != NODEV) 347 ite_off(gp->g_itedev, 3); 348 349 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 350 NULL, 0, 0)); 351 } 352 353 int 354 grfoff(dev) 355 dev_t dev; 356 { 357 struct grf_softc *gp; 358 int error; 359 360 gp = grfsp[GRFUNIT(dev)]; 361 362 if ((gp->g_flags & GF_GRFON) == 0) 363 return(0); 364 365 gp->g_flags &= ~GF_GRFON; 366 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 367 NULL, 0, 0); 368 369 /* 370 * Closely tied together no X's 371 */ 372 if (gp->g_itedev != NODEV) 373 ite_on(gp->g_itedev, 2); 374 375 return(error); 376 } 377 378 int 379 grfsinfo(dev, dyninfo) 380 dev_t dev; 381 struct grfdyninfo *dyninfo; 382 { 383 struct grf_softc *gp; 384 int error; 385 386 gp = grfsp[GRFUNIT(dev)]; 387 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 388 389 /* 390 * Closely tied together no X's 391 */ 392 if (gp->g_itedev != NODEV) 393 ite_reinit(gp->g_itedev); 394 return(error); 395 } 396 397 /* 398 * Get the grf-info in sync with underlying view. 399 */ 400 void 401 grf_viewsync(gp) 402 struct grf_softc *gp; 403 { 404 struct view_size vs; 405 bmap_t bm; 406 struct grfinfo *gi; 407 408 gi = &gp->g_display; 409 410 viewioctl(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 0, NOPROC); 411 412 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 413 414 gi->gd_fbaddr = bm.hw_address; 415 gi->gd_fbsize = bm.phys_mappable; 416 gi->gd_linbase = bm.lin_base; 417 gi->gd_regaddr = bm.hw_regs; 418 gi->gd_regsize = bm.reg_size; 419 gi->gd_vgaaddr = bm.vga_address; 420 gi->gd_vgasize = bm.vga_mappable; 421 gi->gd_vgabase = bm.vga_base; 422 423 if(viewioctl(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, NOPROC)) { 424 /* 425 * fill in some default values... 426 * XXX: Should _never_ happen 427 */ 428 vs.width = 640; 429 vs.height = 400; 430 vs.depth = 1; 431 } 432 gi->gd_colors = 1 << vs.depth; 433 gi->gd_planes = vs.depth; 434 435 gi->gd_fbwidth = vs.width; 436 gi->gd_fbheight = vs.height; 437 gi->gd_dyn.gdi_fbx = 0; 438 gi->gd_dyn.gdi_fby = 0; 439 gi->gd_dyn.gdi_dwidth = vs.width; 440 gi->gd_dyn.gdi_dheight = vs.height; 441 gi->gd_dyn.gdi_dx = 0; 442 gi->gd_dyn.gdi_dy = 0; 443 } 444 445 /* 446 * Change the mode of the display. 447 * Right now all we can do is grfon/grfoff. 448 * Return a UNIX error number or 0 for success. 449 */ 450 /*ARGSUSED*/ 451 int 452 grf_mode(gp, cmd, arg, a2, a3) 453 struct grf_softc *gp; 454 int cmd, a2, a3; 455 void *arg; 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 viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, NOPROC); 464 return(0); 465 case GM_GRFOFF: 466 viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, NOPROC); 467 return(0); 468 case GM_GRFCONFIG: 469 default: 470 break; 471 } 472 return(EINVAL); 473 } 474 #endif /* NGRF > 0 */ 475
Indexes created Tue Sep 30 17:09:57 GMT 2025