1 /* $NetBSD: grf.c,v 1.32 2003/07/15 01:19:49 lukem 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/cdefs.h> 53 __KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.32 2003/07/15 01:19:49 lukem Exp $"); 54 55 #include <sys/param.h> 56 #include <sys/proc.h> 57 #include <sys/ioctl.h> 58 #include <sys/device.h> 59 #include <sys/file.h> 60 #include <sys/malloc.h> 61 #include <sys/conf.h> 62 #include <sys/systm.h> 63 #include <sys/vnode.h> 64 #include <sys/mman.h> 65 66 #include <machine/cpu.h> 67 68 #include <uvm/uvm_extern.h> 69 70 #include <atari/atari/device.h> 71 #include <atari/dev/grfioctl.h> 72 #include <atari/dev/grfabs_reg.h> 73 #include <atari/dev/grfvar.h> 74 #include <atari/dev/itevar.h> 75 #include <atari/dev/viewioctl.h> 76 #include <atari/dev/viewvar.h> 77 78 #include "grfcc.h" 79 #include "grfet.h" 80 #define NGRF (NGRFCC + NGRFET) 81 82 #if NGRF > 0 83 84 #include "ite.h" 85 #if NITE == 0 86 #define ite_on(u,f) 87 #define ite_off(u,f) 88 #define ite_reinit(d) 89 #endif 90 91 int grfon __P((dev_t)); 92 int grfoff __P((dev_t)); 93 int grfsinfo __P((dev_t, struct grfdyninfo *)); 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 CFATTACH_DECL(grfbus, sizeof(struct device), 105 grfbusmatch, grfbusattach, NULL, NULL); 106 107 extern struct cfdriver grfbus_cd; 108 109 dev_type_open(grfopen); 110 dev_type_close(grfclose); 111 dev_type_ioctl(grfioctl); 112 dev_type_mmap(grfmmap); 113 114 const struct cdevsw grf_cdevsw = { 115 grfopen, grfclose, noread, nowrite, grfioctl, 116 nostop, notty, nopoll, grfmmap, nokqfilter, 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 /* 276 * map the contents of a graphics display card into process' 277 * memory space. 278 */ 279 paddr_t 280 grfmmap(dev, off, prot) 281 dev_t dev; 282 off_t off; 283 int prot; 284 { 285 struct grf_softc *gp; 286 struct grfinfo *gi; 287 u_int vgabase, linbase; 288 289 gp = grfsp[GRFUNIT(dev)]; 290 gi = &gp->g_display; 291 292 vgabase = gi->gd_vgabase; 293 linbase = gi->gd_linbase; 294 295 /* 296 * control registers 297 */ 298 if (off >= 0 && off < gi->gd_regsize) 299 return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT); 300 301 /* 302 * VGA memory 303 */ 304 if (off >= vgabase && off < (vgabase + gi->gd_vgasize)) 305 return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT); 306 307 /* 308 * frame buffer 309 */ 310 if (off >= linbase && off < (linbase + gi->gd_fbsize)) 311 return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT); 312 return(-1); 313 } 314 315 int 316 grfon(dev) 317 dev_t dev; 318 { 319 struct grf_softc *gp; 320 321 gp = grfsp[GRFUNIT(dev)]; 322 323 if (gp->g_flags & GF_GRFON) 324 return(0); 325 326 gp->g_flags |= GF_GRFON; 327 if (gp->g_itedev != NODEV) 328 ite_off(gp->g_itedev, 3); 329 330 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 331 NULL, 0, 0)); 332 } 333 334 int 335 grfoff(dev) 336 dev_t dev; 337 { 338 struct grf_softc *gp; 339 int error; 340 341 gp = grfsp[GRFUNIT(dev)]; 342 343 if ((gp->g_flags & GF_GRFON) == 0) 344 return(0); 345 346 gp->g_flags &= ~GF_GRFON; 347 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 348 NULL, 0, 0); 349 350 /* 351 * Closely tied together no X's 352 */ 353 if (gp->g_itedev != NODEV) 354 ite_on(gp->g_itedev, 2); 355 356 return(error); 357 } 358 359 int 360 grfsinfo(dev, dyninfo) 361 dev_t dev; 362 struct grfdyninfo *dyninfo; 363 { 364 struct grf_softc *gp; 365 int error; 366 367 gp = grfsp[GRFUNIT(dev)]; 368 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 369 370 /* 371 * Closely tied together no X's 372 */ 373 if (gp->g_itedev != NODEV) 374 ite_reinit(gp->g_itedev); 375 return(error); 376 } 377 378 /* 379 * Get the grf-info in sync with underlying view. 380 */ 381 void 382 grf_viewsync(gp) 383 struct grf_softc *gp; 384 { 385 struct view_size vs; 386 bmap_t bm; 387 struct grfinfo *gi; 388 extern const struct cdevsw view_cdevsw; 389 390 gi = &gp->g_display; 391 392 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 393 0, NOPROC); 394 395 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 396 397 gi->gd_fbaddr = bm.hw_address; 398 gi->gd_fbsize = bm.phys_mappable; 399 gi->gd_linbase = bm.lin_base; 400 gi->gd_regaddr = bm.hw_regs; 401 gi->gd_regsize = bm.reg_size; 402 gi->gd_vgaaddr = bm.vga_address; 403 gi->gd_vgasize = bm.vga_mappable; 404 gi->gd_vgabase = bm.vga_base; 405 406 if((*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, 407 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 extern const struct cdevsw view_cdevsw; 442 443 switch (cmd) { 444 case GM_GRFON: 445 /* 446 * Get in sync with view, ite might have changed it. 447 */ 448 grf_viewsync(gp); 449 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCDISPLAY, 450 NULL, 0, NOPROC); 451 return(0); 452 case GM_GRFOFF: 453 (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCREMOVE, 454 NULL, 0, NOPROC); 455 return(0); 456 case GM_GRFCONFIG: 457 default: 458 break; 459 } 460 return(EPASSTHROUGH); 461 } 462 #endif /* NGRF > 0 */ 463