grf.c revision 1.13
1 /* $NetBSD: grf.c,v 1.13 1996/09/25 15:03:41 leo 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 <vm/vm_kern.h> 65 #include <vm/vm_page.h> 66 #include <vm/vm_pager.h> 67 #include <machine/cpu.h> 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 *, void *, 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 struct cfdriver grfbus_cd = { 112 NULL, "grfbus", DV_DULL 113 }; 114 115 /* 116 * only used in console init. 117 */ 118 static struct cfdata *cfdata_gbus = NULL; 119 120 int 121 grfbusmatch(pdp, match, auxp) 122 struct device *pdp; 123 void *match, *auxp; 124 { 125 struct cfdata *cfp = match; 126 127 if(strcmp(auxp, grfbus_cd.cd_name)) 128 return(0); 129 130 if(atari_realconfig == 0) 131 cfdata_gbus = cfp; 132 return(1); /* Always there */ 133 } 134 135 void 136 grfbusattach(pdp, dp, auxp) 137 struct device *pdp, *dp; 138 void *auxp; 139 { 140 grf_auxp_t grf_auxp; 141 142 grf_auxp.busprint = grfbusprint; 143 grf_auxp.from_bus_match = 1; 144 145 if(dp == NULL) /* Console init */ 146 atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint); 147 else { 148 printf("\n"); 149 config_found(dp, (void*)&grf_auxp, grfbusprint); 150 } 151 } 152 153 int 154 grfbusprint(auxp, name) 155 void *auxp; 156 const char *name; 157 { 158 if(name == NULL) 159 return(UNCONF); 160 return(QUIET); 161 } 162 163 /*ARGSUSED*/ 164 int 165 grfopen(dev, flags, devtype, p) 166 dev_t dev; 167 int flags, devtype; 168 struct proc *p; 169 { 170 struct grf_softc *gp; 171 172 if (GRFUNIT(dev) >= NGRF) 173 return(ENXIO); 174 175 gp = grfsp[GRFUNIT(dev)]; 176 177 if ((gp->g_flags & GF_ALIVE) == 0) 178 return(ENXIO); 179 180 if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE)) 181 return(EBUSY); 182 grf_viewsync(gp); 183 184 return(0); 185 } 186 187 /*ARGSUSED*/ 188 int 189 grfclose(dev, flags, mode, p) 190 dev_t dev; 191 int flags; 192 int mode; 193 struct proc *p; 194 { 195 struct grf_softc *gp; 196 197 gp = grfsp[GRFUNIT(dev)]; 198 (void)grfoff(dev); 199 gp->g_flags &= GF_ALIVE; 200 return(0); 201 } 202 203 /*ARGSUSED*/ 204 int 205 grfioctl(dev, cmd, data, flag, p) 206 dev_t dev; 207 u_long cmd; 208 int flag; 209 caddr_t data; 210 struct proc *p; 211 { 212 struct grf_softc *gp; 213 int error; 214 215 gp = grfsp[GRFUNIT(dev)]; 216 error = 0; 217 218 switch (cmd) { 219 case OGRFIOCGINFO: 220 /* argl.. no bank-member.. */ 221 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4); 222 break; 223 case GRFIOCGINFO: 224 bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)); 225 break; 226 case GRFIOCON: 227 error = grfon(dev); 228 break; 229 case GRFIOCOFF: 230 error = grfoff(dev); 231 break; 232 case GRFIOCSINFO: 233 error = grfsinfo(dev, (struct grfdyninfo *) data); 234 break; 235 case GRFGETVMODE: 236 return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0)); 237 case GRFSETVMODE: 238 error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0); 239 if (error == 0 && gp->g_itedev) 240 ite_reinit(gp->g_itedev); 241 break; 242 case GRFGETNUMVM: 243 return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0)); 244 /* 245 * these are all hardware dependant, and have to be resolved 246 * in the respective driver. 247 */ 248 case GRFIOCPUTCMAP: 249 case GRFIOCGETCMAP: 250 case GRFIOCSSPRITEPOS: 251 case GRFIOCGSPRITEPOS: 252 case GRFIOCSSPRITEINF: 253 case GRFIOCGSPRITEINF: 254 case GRFIOCGSPRITEMAX: 255 default: 256 /* 257 * check to see whether it's a command recognized by the 258 * view code. 259 */ 260 return(viewioctl(gp->g_viewdev, cmd, data, flag, p)); 261 error = EINVAL; 262 break; 263 264 } 265 return(error); 266 } 267 268 /*ARGSUSED*/ 269 int 270 grfpoll(dev, events, p) 271 dev_t dev; 272 int events; 273 struct proc *p; 274 { 275 int revents = 0; 276 277 if (events & (POLLOUT | POLLWRNORM)) 278 revents |= events & (POLLOUT | POLLWRNORM); 279 return (revents); 280 } 281 282 /* 283 * map the contents of a graphics display card into process' 284 * memory space. 285 */ 286 int 287 grfmmap(dev, off, prot) 288 dev_t dev; 289 int off, prot; 290 { 291 struct grf_softc *gp; 292 struct grfinfo *gi; 293 294 gp = grfsp[GRFUNIT(dev)]; 295 gi = &gp->g_display; 296 297 /* 298 * frame buffer 299 */ 300 if ((off >= 0) && (off < gi->gd_fbsize)) 301 return (((u_int)gi->gd_fbaddr + off) >> PGSHIFT); 302 return(-1); 303 } 304 305 int 306 grfon(dev) 307 dev_t dev; 308 { 309 struct grf_softc *gp; 310 311 gp = grfsp[GRFUNIT(dev)]; 312 313 if (gp->g_flags & GF_GRFON) 314 return(0); 315 316 gp->g_flags |= GF_GRFON; 317 if (gp->g_itedev != NODEV) 318 ite_off(gp->g_itedev, 3); 319 320 return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON, 321 NULL, 0, 0)); 322 } 323 324 int 325 grfoff(dev) 326 dev_t dev; 327 { 328 struct grf_softc *gp; 329 int error; 330 331 gp = grfsp[GRFUNIT(dev)]; 332 333 if ((gp->g_flags & GF_GRFON) == 0) 334 return(0); 335 336 gp->g_flags &= ~GF_GRFON; 337 error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF, 338 NULL, 0, 0); 339 340 /* 341 * Closely tied together no X's 342 */ 343 if (gp->g_itedev != NODEV) 344 ite_on(gp->g_itedev, 2); 345 346 return(error); 347 } 348 349 int 350 grfsinfo(dev, dyninfo) 351 dev_t dev; 352 struct grfdyninfo *dyninfo; 353 { 354 struct grf_softc *gp; 355 int error; 356 357 gp = grfsp[GRFUNIT(dev)]; 358 error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0); 359 360 /* 361 * Closely tied together no X's 362 */ 363 if (gp->g_itedev != NODEV) 364 ite_reinit(gp->g_itedev); 365 return(error); 366 } 367 368 /* 369 * Get the grf-info in sync with underlying view. 370 */ 371 void 372 grf_viewsync(gp) 373 struct grf_softc *gp; 374 { 375 struct view_size vs; 376 bmap_t bm; 377 struct grfinfo *gi; 378 379 gi = &gp->g_display; 380 381 viewioctl(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm, 0, NOPROC); 382 383 gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */ 384 385 gi->gd_fbaddr = bm.hw_address; 386 gi->gd_fbsize = bm.depth*bm.bytes_per_row*bm.rows; 387 gi->gd_regaddr = bm.hw_regs; 388 gi->gd_regsize = bm.reg_size; 389 gp->g_fbkva = bm.plane; 390 gp->g_regkva = bm.regs; 391 392 if(viewioctl(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0, NOPROC)) { 393 /* 394 * fill in some default values... 395 * XXX: Should _never_ happen 396 */ 397 vs.width = 640; 398 vs.height = 400; 399 vs.depth = 1; 400 } 401 gi->gd_colors = 1 << vs.depth; 402 gi->gd_planes = vs.depth; 403 404 gi->gd_fbwidth = vs.width; 405 gi->gd_fbheight = vs.height; 406 gi->gd_dyn.gdi_fbx = 0; 407 gi->gd_dyn.gdi_fby = 0; 408 gi->gd_dyn.gdi_dwidth = vs.width; 409 gi->gd_dyn.gdi_dheight = vs.height; 410 gi->gd_dyn.gdi_dx = 0; 411 gi->gd_dyn.gdi_dy = 0; 412 } 413 414 /* 415 * Change the mode of the display. 416 * Right now all we can do is grfon/grfoff. 417 * Return a UNIX error number or 0 for success. 418 */ 419 /*ARGSUSED*/ 420 int 421 grf_mode(gp, cmd, arg, a2, a3) 422 struct grf_softc *gp; 423 int cmd, a2, a3; 424 void *arg; 425 { 426 switch (cmd) { 427 case GM_GRFON: 428 /* 429 * Get in sync with view, ite might have changed it. 430 */ 431 grf_viewsync(gp); 432 viewioctl(gp->g_viewdev, VIOCDISPLAY, NULL, 0, NOPROC); 433 return(0); 434 case GM_GRFOFF: 435 viewioctl(gp->g_viewdev, VIOCREMOVE, NULL, 0, NOPROC); 436 return(0); 437 case GM_GRFCONFIG: 438 default: 439 break; 440 } 441 return(EINVAL); 442 } 443 #endif /* NGRF > 0 */ 444
Indexes created Wed Sep 24 15:09:51 GMT 2025