grf_ul.c revision 1.16
1 /* $NetBSD: grf_ul.c,v 1.16 1996/05/01 09:59:29 veego Exp $ */ 2 #define UL_DEBUG 3 4 /* 5 * Copyright (c) 1995 Ignatios Souvatzis 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Lutz Vieweg. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #include "grful.h" 34 #if NGRFUL > 0 35 36 /* Graphics routines for the University of Lowell A2410 board, 37 using the TMS34010 processor. */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/errno.h> 42 #include <sys/ioctl.h> 43 #include <sys/device.h> 44 #include <sys/malloc.h> 45 #include <sys/syslog.h> 46 47 #include <machine/cpu.h> 48 49 #include <amiga/amiga/device.h> 50 #include <amiga/amiga/isr.h> 51 #include <amiga/dev/zbusvar.h> 52 #include <amiga/dev/grfioctl.h> 53 #include <amiga/dev/grfvar.h> 54 #include <amiga/dev/grf_ulreg.h> 55 56 extern u_int16_t tmscode[]; 57 58 int ul_ioctl __P((struct grf_softc *, u_long, void *, dev_t)); 59 int ul_getcmap __P((struct grf_softc *, struct grf_colormap *, dev_t)); 60 int ul_putcmap __P((struct grf_softc *, struct grf_colormap *, dev_t)); 61 int ul_bitblt __P((struct grf_softc *, struct grf_bitblt *, dev_t)); 62 int ul_blank __P((struct grf_softc *, int *, dev_t)); 63 64 static int ulisr __P((void *)); 65 int ulowell_alive __P((struct grfvideo_mode *)); 66 static void ul_load_code __P((struct grf_softc *)); 67 static int ul_load_mon __P((struct grf_softc *, struct grfvideo_mode *)); 68 static int ul_getvmode __P((struct grf_softc *, struct grfvideo_mode *)); 69 static int ul_setvmode __P((struct grf_softc *, unsigned)); 70 static __inline void ul_setfb __P((struct grf_softc *, u_long)); 71 72 /* 73 * marked true early so that ulowell_cnprobe() can tell if we are alive. 74 */ 75 int ulowell_inited; 76 77 /* standard-palette definition */ 78 u_int8_t ul_std_palette[] = { 79 0,128, 0,128, 0,128, 0,128, 0,255, 0,255, 0,255, 0,255, 80 0, 0,128,128, 0, 0,128,128, 0, 0,255,255, 0, 0,255,255, 81 0, 0, 0, 0, 128,128,128,128, 0, 0, 0, 0, 255,255,255,255}; 82 83 u_int8_t ul_ovl_palette[] = { 84 128, 0, 0, 0, 85 128, 0, 0, 0, 86 128, 0, 0, 0}; 87 88 struct grfvideo_mode ul_monitor_defs[] = { 89 90 /* 91 * Horizontal values are given in TMS units, that is, for the 92 * A2410 board, units of 16 pixels. The ioctl multiplies (when 93 * exporting) or divides (when importing) them by 16 to conform to. 94 * 95 * XXX This used to be in units of 8 pixel times. We 96 * must also change amiga/stand/grfconfig/grfconfig.c, 97 * grf_{rt,rh,cl,cv}.c and egsgrfconfig (the latter to generate the 98 * horizontal timings in units of pixels instead of 8 pixels. 99 * You will also have to write warnings in BIG BOLD RED BLINKING 100 * LETTERS all over the docs, and still people will fry their monitors. 101 * 102 * btw, the _totals are always sync_start+1, to compute the frequencies 103 * correctly. (see TMS34010 manual) 104 */ 105 106 /* 1024x768, 60Hz */ 107 {1, "1024x768", 66667000, 1024, 768, 8, 108 82, 18, 86, 12, 87, 794, 26, 797, 2, 798}, 109 110 /* 864x648, 70Hz */ 111 {2, "864x648", 50000000, 864, 648, 8, 112 61, 7, 65, 3, 66, 667, 19, 677, 4, 678}, 113 114 /* 800x600, 60Hz */ 115 {3, "800x600", 36000000, 800, 600, 8, 116 57, 7, 61, 3, 62, 619, 19, 629, 4, 630}, 117 118 /* 640x400, 60 Hz, interlaced */ 119 {4, "640x400I", 14318000, 640, 400, 8, 120 48, 8, 56, 3, 57, 239, 39, 262, 2, 240}, 121 122 /* 1024x768, 65Hz interlaced, s.th. is strange */ 123 {5, "1024x768?I", 44980000, 1024, 768, 8, 124 76, 12, 79, 3, 80, 512, 24, 533, 2, 534}, 125 126 /* 1024x1024, 60Hz */ 127 {6, "1024x1024", 80000000, 1024,1024, 8, 128 77, 13, 78, 5, 78,1051, 27,1054, 2,1055}, 129 130 /* 736x480, 60 Hz */ 131 {7, "736x480", 28636300, 736, 480, 8, 132 54, 8, 57, 3, 58, 503, 23, 514, 3, 515}, 133 }; 134 135 int ulowell_mon_max = sizeof (ul_monitor_defs)/sizeof (ul_monitor_defs[0]); 136 137 /* option settable */ 138 #ifndef ULOWELL_OSC1 139 #define ULOWELL_OSC1 36000000 140 #endif 141 142 #ifndef ULOWELL_OSC2 143 #define ULOWELL_OSC2 66667000 144 #endif 145 146 #ifndef ULOWELL_DEFAULT_MON 147 #define ULOWELL_DEFAULT_MON 1 148 #endif 149 150 /* patchable */ 151 int ulowell_default_mon = ULOWELL_DEFAULT_MON; 152 int ulowell_default_gfx = ULOWELL_DEFAULT_MON; 153 154 /* 155 * yes, this should be per board. We don't pay service to multiple boards, 156 * anyway. 157 */ 158 159 u_long ulowell_clock[2] = { ULOWELL_OSC2, ULOWELL_OSC1 }; 160 161 static struct grfvideo_mode *current_mon; 162 163 /* 164 * We dont use ints at the moment, but will need this later to avoid 165 * busy_waiting in gsp_write, and we use it for spurious int warnings. 166 */ 167 168 static int 169 ulisr(arg) 170 void *arg; 171 { 172 struct grf_softc *gp = arg; 173 struct gspregs *ba; 174 u_int16_t thebits; 175 176 if (gp == NULL) 177 return 0; 178 179 ba = (struct gspregs *)gp->g_regkva; 180 181 if (ba == NULL) 182 return 0; 183 184 thebits = ba->ctrl; 185 if (thebits & INTOUT) { 186 log(LOG_INFO, "grf4: got interrupt, ctrl=0x%4x\n", thebits); 187 /* clear int */ 188 ba->ctrl = thebits & ~INTOUT; 189 return 1; 190 } 191 return 0; 192 } 193 194 /* 195 * used to query the ulowell board to see if its alive. 196 * for the moment, a NOP. 197 */ 198 int 199 ulowell_alive(mdp) 200 struct grfvideo_mode *mdp; 201 { 202 return 1; 203 } 204 205 /* 206 * Load the (mostly) ite support code and the default colormaps. 207 */ 208 static void 209 ul_load_code(gp) 210 struct grf_softc *gp; 211 { 212 struct grf_ul_softc *gup; 213 struct gspregs *ba; 214 struct grfinfo *gi; 215 int i,j; 216 #if 0 217 struct grf_colormap gcm; 218 #endif 219 220 gup = (struct grf_ul_softc *)gp; 221 ba = (struct gspregs *)gp->g_regkva; 222 gi = &gp->g_display; 223 224 gi->gd_regaddr = ztwopa((caddr_t)ba); 225 gi->gd_regsize = sizeof(struct gspregs); 226 gi->gd_fbaddr = NULL; 227 gi->gd_fbsize = 0; 228 gi->gd_fbwidth = 1024; 229 gi->gd_fbheight = 1024; 230 gi->gd_colors = 256; 231 232 ba->ctrl = (ba->ctrl & ~INCR) | (LBL | INCW); 233 ba->hstadrh = 0xC000; 234 ba->hstadrl = 0x0080; 235 ba->data = 0x0; /* disable screen refresh and video output */ 236 ba->data = 0xFFFC; /* screen refresh base address */ 237 ba->data = 0xFFFF; /* no display int possible */ 238 ba->data = 0x000C; /* CAS before RAS refresh each 64 local clks */ 239 240 ba->ctrl = (ba->ctrl & ~INCW) | LBL; 241 ba->hstadrh = 0xfe80; 242 ba->hstadrl = 0; 243 ba->data = 4; 244 ba->hstadrl = 0x20; 245 ba->data = 0xFF; /* all color planes visible */ 246 247 ba->hstadrl = 0; 248 ba->data = 5; 249 ba->hstadrl = 0x20; 250 ba->data = 0; /* no color planes blinking */ 251 252 ba->hstadrl = 0; 253 ba->data = 6; 254 ba->hstadrl = 0x20; 255 ba->data = gup->gus_ovslct = 0x43; 256 /* overlay visible, no overlay blinking, overlay color 0 transparent */ 257 258 ba->hstadrl = 0; 259 ba->data = 7; 260 ba->hstadrl = 0x20; 261 ba->data = 0; /* voodoo */ 262 263 /* clear overlay planes */ 264 ba->ctrl |= INCW; 265 ba->hstadrh = 0xff80; 266 ba->hstadrl = 0x0000; 267 for (i=0xff80000; i< 0xffa0000; ++i) { 268 ba->data = 0; 269 } 270 271 /* download tms code */ 272 273 ba->ctrl = LBL | INCW | NMI | NMIM | HLT | CF; 274 275 printf("\ndownloading TMS code"); 276 i=0; 277 while ((j = tmscode[i++])) { 278 printf("."); 279 ba->hstadrh = tmscode[i++]; 280 ba->hstadrl = tmscode[i++]; 281 while (j-- > 0) { 282 ba->data = tmscode[i++]; 283 } 284 } 285 286 /* font info was uploaded in ite_ul.c(ite_ulinit). */ 287 288 #if 1 289 /* XXX load image palette with some initial values, slightly hacky */ 290 291 ba->hstadrh = 0xfe80; 292 ba->hstadrl = 0x0000; 293 ba->ctrl |= INCW; 294 ba->data = 0; 295 ba->ctrl &= ~INCW; 296 297 for (i=0; i<16; ++i) { 298 ba->data = gup->gus_imcmap[i+ 0] = ul_std_palette[i+ 0]; 299 ba->data = gup->gus_imcmap[i+256] = ul_std_palette[i+16]; 300 ba->data = gup->gus_imcmap[i+512] = ul_std_palette[i+32]; 301 } 302 303 /* 304 * XXX load shadow overlay palette with what the TMS code will load 305 * into the real one some time after the TMS code is started below. 306 * This might be considered a rude hack. 307 */ 308 bcopy(ul_ovl_palette, gup->gus_ovcmap, 3*4); 309 310 /* 311 * Unflush cache, unhalt cpu -> nmi starts to run. This MUST NOT BE 312 * DONE before the image color map initialization above, to guarantee 313 * the index register in the BT458 is not used by more than one CPU 314 * at once. 315 * 316 * XXX For the same reason, we'll have to rething ul_putcmap(). For 317 * details, look at comment there. 318 */ 319 ba->ctrl &= ~(HLT|CF); 320 321 #else 322 /* 323 * XXX I wonder why this partially ever worked. 324 * 325 * This can't possibly work this way, as we are copyin()ing data in 326 * ul_putcmap. 327 * 328 * I guess this partially worked because SFC happened to point to 329 * to supervisor data space on 68030 machines coming from the old 330 * boot loader. 331 * 332 * While this looks more correct than the hack in the other part of the 333 * loop, we would have to do our own version of the loop through 334 * colormap entries, set up command buffer, and call gsp_write(), or 335 * factor out some code. 336 */ 337 338 /* 339 * XXX This version will work for the overlay, if our queue codes 340 * initial conditions are set at load time (not start time). 341 * It further assumes that ul_putcmap only uses the 342 * GRFIMDEV/GRFOVDEV bits of the dev parameter. 343 */ 344 345 346 /* unflush cache, unhalt cpu first -> nmi starts to run */ 347 ba->ctrl &= ~(HLT|CF); 348 349 gcm.index = 0; 350 gcm.count = 16; 351 gcm.red = ul_std_palette + 0; 352 gcm.green = ul_std_palette + 16; 353 gcm.blue = ul_std_palette + 32; 354 ul_putcmap(gp, &gcm, GRFIMDEV); 355 356 gcm.index = 0; 357 gcm.count = 4; 358 gcm.red = ul_ovl_palette + 0; 359 gcm.green = ul_ovl_palette + 4; 360 gcm.blue = ul_ovl_palette + 8; 361 ul_putcmap(gp, &gcm, GRFOVDEV); 362 #endif 363 364 } 365 366 static int 367 ul_load_mon(gp, md) 368 struct grf_softc *gp; 369 struct grfvideo_mode *md; 370 { 371 struct grf_ul_softc *gup; 372 struct grfinfo *gi; 373 struct gspregs *ba; 374 u_int16_t buf[8]; 375 376 gup = (struct grf_ul_softc *)gp; 377 gi = &gp->g_display; 378 ba = (struct gspregs *)gp->g_regkva; 379 380 gi->gd_dyn.gdi_fbx = 0; 381 gi->gd_dyn.gdi_fby = 0; 382 gi->gd_dyn.gdi_dwidth = md->disp_width; 383 gi->gd_dyn.gdi_dheight = md->disp_height; 384 gi->gd_dyn.gdi_dx = 0; 385 gi->gd_dyn.gdi_dy = 0; 386 387 ba->ctrl = (ba->ctrl & ~INCR) | (LBL | INCW); /* XXX */ 388 389 ba->hstadrh = 0xC000; 390 ba->hstadrl = 0x0000; 391 ba->data = md->hsync_stop; 392 ba->data = md->hblank_stop; 393 ba->data = md->hblank_start; 394 ba->data = md->hsync_start; 395 ba->data = md->vsync_stop; 396 ba->data = md->vblank_stop; 397 ba->data = md->vblank_start; 398 ba->data = md->vsync_start; 399 400 ba->ctrl &= ~INCW; 401 ba->hstadrh = 0xFE90; 402 ba->hstadrl = 0x0000; 403 404 if (abs(md->pixel_clock - ulowell_clock[0]) > 405 abs(md->pixel_clock - ulowell_clock[1])) { 406 407 ba->data = (ba->data & 0xFC) | 2 | 1; 408 md->pixel_clock = ulowell_clock[1]; 409 410 } else { 411 ba->data = (ba->data & 0xFC) | 2 | 0; 412 md->pixel_clock = ulowell_clock[0]; 413 } 414 415 ba->ctrl |= LBL | INCW; 416 ba->hstadrh = 0xC000; 417 ba->hstadrl = 0x0080; 418 ba->data = (md->vblank_start - md->vblank_stop == md->disp_height ? 419 0xf020 : 0xb020); 420 421 /* I guess this should be in the yet unimplemented mode select ioctl */ 422 /* Hm.. maybe not. We always put the console on overlay plane no 0. */ 423 /* Anyway, this _IS_ called in the mode select ioctl. */ 424 425 /* ite support code parameters: */ 426 buf[0] = GCMD_MCHG; 427 buf[1] = md->disp_width; /* display width */ 428 buf[2] = md->disp_height; /* display height */ 429 buf[3] = 0; /* LSW of frame buffer origin */ 430 buf[4] = 0xFF80; /* MSW of frame buffer origin */ 431 buf[5] = gi->gd_fbwidth * 1; /* frame buffer pitch */ 432 buf[6] = 1; /* frame buffer depth */ 433 gsp_write(ba, buf, 7); 434 435 return(1); 436 } 437 438 int ul_mode __P((struct grf_softc *, u_long, void *, u_long, int)); 439 440 void grfulattach __P((struct device *, struct device *, void *)); 441 int grfulprint __P((void *, char *)); 442 int grfulmatch __P((struct device *, void *, void *)); 443 444 struct cfattach grful_ca = { 445 sizeof(struct grf_ul_softc), grfulmatch, grfulattach 446 }; 447 448 struct cfdriver grful_cd = { 449 NULL, "grful", DV_DULL, NULL, 0 450 }; 451 452 /* 453 * only used in console init 454 */ 455 static struct cfdata *cfdata; 456 457 /* 458 * we make sure to only init things once. this is somewhat 459 * tricky regarding the console. 460 */ 461 int 462 grfulmatch(pdp, match, auxp) 463 struct device *pdp; 464 void *match, *auxp; 465 { 466 #ifdef ULOWELLCONSOLE 467 struct cfdata *cfp = match; 468 static int ulconunit = -1; 469 #endif 470 struct zbus_args *zap; 471 472 zap = auxp; 473 474 /* 475 * allow only one ulowell console 476 */ 477 if (amiga_realconfig == 0) 478 #ifdef ULOWELLCONSOLE 479 if (ulconunit != -1) 480 #endif 481 return(0); 482 483 if (zap->manid != 1030 || zap->prodid != 0) 484 return(0); 485 486 #ifdef ULOWELLCONSOLE 487 if (amiga_realconfig == 0 || ulconunit != cfp->cf_unit) { 488 #endif 489 if ((unsigned)ulowell_default_mon > ulowell_mon_max) 490 ulowell_default_mon = 1; 491 492 current_mon = ul_monitor_defs + ulowell_default_mon - 1; 493 if (ulowell_alive(current_mon) == 0) 494 return(0); 495 #ifdef ULOWELLCONSOLE 496 if (amiga_realconfig == 0) { 497 ulconunit = cfp->cf_unit; 498 cfdata = cfp; 499 } 500 } 501 #endif 502 return(1); 503 } 504 505 /* 506 * attach to the grfbus (zbus) 507 */ 508 void 509 grfulattach(pdp, dp, auxp) 510 struct device *pdp, *dp; 511 void *auxp; 512 { 513 static struct grf_ul_softc congrf; 514 struct zbus_args *zap; 515 struct grf_softc *gp; 516 struct grf_ul_softc *gup; 517 518 zap = auxp; 519 520 if (dp == NULL) 521 gup = &congrf; 522 else 523 gup = (struct grf_ul_softc *)dp; 524 525 gp = &gup->gus_sc; 526 527 if (dp != NULL && congrf.gus_sc.g_regkva != 0) { 528 /* 529 * inited earlier, just copy (not device struct) 530 */ 531 bcopy(&congrf.gus_sc.g_display, &gp->g_display, 532 (char *)&gup->gus_isr - (char *)&gp->g_display); 533 534 /* ...and transfer the isr */ 535 gup->gus_isr.isr_ipl = 2; 536 gup->gus_isr.isr_intr = ulisr; 537 gup->gus_isr.isr_arg = (void *)gp; 538 /* 539 * To make sure ints are always catched, first add new isr 540 * then remove old: 541 */ 542 add_isr(&gup->gus_isr); 543 remove_isr(&congrf.gus_isr); 544 } else { 545 gp->g_regkva = (caddr_t)zap->va; 546 gp->g_fbkva = NULL; 547 gp->g_unit = GRF_ULOWELL_UNIT; 548 gp->g_flags = GF_ALIVE; 549 gp->g_mode = ul_mode; 550 gp->g_conpri = grful_cnprobe(); 551 gp->g_data = NULL; 552 553 gup->gus_isr.isr_ipl = 2; 554 gup->gus_isr.isr_intr = ulisr; 555 gup->gus_isr.isr_arg = (void *)gp; 556 add_isr(&gup->gus_isr); 557 558 (void)ul_load_code(gp); 559 (void)ul_load_mon(gp, current_mon); 560 grful_iteinit(gp); 561 } 562 if (dp != NULL) 563 printf("\n"); 564 /* 565 * attach grf 566 */ 567 amiga_config_found(cfdata, &gp->g_device, gp, grfulprint); 568 } 569 570 int 571 grfulprint(auxp, pnp) 572 void *auxp; 573 char *pnp; 574 { 575 if (pnp) 576 printf("grf%d at %s", ((struct grf_softc *)auxp)->g_unit, 577 pnp); 578 return(UNCONF); 579 } 580 581 static int 582 ul_getvmode (gp, vm) 583 struct grf_softc *gp; 584 struct grfvideo_mode *vm; 585 { 586 struct grfvideo_mode *md; 587 588 if (vm->mode_num && vm->mode_num > ulowell_mon_max) 589 return EINVAL; 590 591 if (! vm->mode_num) 592 vm->mode_num = current_mon - ul_monitor_defs + 1; 593 594 md = ul_monitor_defs + vm->mode_num - 1; 595 strncpy (vm->mode_descr, md->mode_descr, 596 sizeof (vm->mode_descr)); 597 598 /* XXX should tell TMS to measure it */ 599 vm->pixel_clock = md->pixel_clock; 600 vm->disp_width = md->disp_width; 601 vm->disp_height = md->disp_height; 602 vm->depth = md->depth; 603 604 vm->hblank_start = (md->hblank_start - md->hblank_stop) * 16; 605 vm->hblank_stop = (md->htotal - 1) * 16; 606 vm->hsync_start = (md->hsync_start - md->hblank_stop) * 16; 607 vm->hsync_stop = (md->hsync_stop + md->htotal - md->hblank_stop) * 16; 608 vm->htotal = md->htotal * 16; 609 610 vm->vblank_start = md->vblank_start - md->vblank_stop; 611 vm->vblank_stop = md->vtotal - 1; 612 vm->vsync_start = md->vsync_start - md->vblank_stop; 613 vm->vsync_stop = md->vsync_stop + md->vtotal - md->vblank_stop; 614 vm->vtotal = md->vtotal; 615 616 return 0; 617 } 618 619 620 static int 621 ul_setvmode (gp, mode) 622 struct grf_softc *gp; 623 unsigned mode; 624 { 625 struct grf_ul_softc *gup; 626 struct gspregs *ba; 627 int error; 628 629 if (!mode || mode > ulowell_mon_max) 630 return EINVAL; 631 632 ba = (struct gspregs *)gp->g_regkva; 633 gup = (struct grf_ul_softc *)gp; 634 current_mon = ul_monitor_defs + mode - 1; 635 636 error = ul_load_mon (gp, current_mon) ? 0 : EINVAL; 637 638 return error; 639 } 640 641 /* 642 * Set the frame buffer or overlay planes on or off. 643 * Always succeeds. 644 */ 645 646 static __inline void 647 ul_setfb(gp, cmd) 648 struct grf_softc *gp; 649 u_long cmd; 650 { 651 struct grf_ul_softc *gup; 652 struct gspregs *ba; 653 654 gup = (struct grf_ul_softc *)gp; 655 656 ba = (struct gspregs *)gp->g_regkva; 657 ba->ctrl = LBL; 658 ba->hstadrh = 0xfe80; 659 ba->hstadrl = 0x0000; 660 ba->data = 6; 661 ba->hstadrl = 0x0020; 662 663 switch (cmd) { 664 case GM_GRFON: 665 gup->gus_ovslct |= 0x40; 666 break; 667 case GM_GRFOFF: 668 gup->gus_ovslct &= ~0x40; 669 break; 670 case GM_GRFOVON: 671 gup->gus_ovslct |= 3; 672 break; 673 case GM_GRFOVOFF: 674 gup->gus_ovslct &= ~3; 675 break; 676 } 677 ba->data = gup->gus_ovslct; 678 } 679 680 /* 681 * Change the mode of the display. 682 * Return a UNIX error number or 0 for success. 683 */ 684 int 685 ul_mode(gp, cmd, arg, a2, a3) 686 struct grf_softc *gp; 687 u_long cmd; 688 void *arg; 689 u_long a2; 690 int a3; 691 { 692 int i; 693 struct grfdyninfo *gd; 694 695 switch (cmd) { 696 case GM_GRFON: 697 case GM_GRFOFF: 698 case GM_GRFOVON: 699 case GM_GRFOVOFF: 700 ul_setfb (gp, cmd); 701 return 0; 702 703 case GM_GRFCONFIG: 704 gd = (struct grfdyninfo *)arg; 705 for (i=0; i<ulowell_mon_max; ++i) { 706 if (ul_monitor_defs[i].disp_width == gd->gdi_dwidth && 707 ul_monitor_defs[i].disp_height == gd->gdi_dheight) 708 return ul_setvmode(gp, i+1); 709 } 710 return EINVAL; 711 712 case GM_GRFGETVMODE: 713 return ul_getvmode (gp, (struct grfvideo_mode *) arg); 714 715 case GM_GRFSETVMODE: 716 return ul_setvmode (gp, *(unsigned *) arg); 717 718 case GM_GRFGETNUMVM: 719 *(int *)arg = ulowell_mon_max; 720 return 0; 721 722 case GM_GRFIOCTL: 723 return ul_ioctl (gp, a2, arg, (dev_t)a3); 724 725 default: 726 break; 727 } 728 729 return EINVAL; 730 } 731 732 int 733 ul_ioctl (gp, cmd, data, dev) 734 register struct grf_softc *gp; 735 u_long cmd; 736 void *data; 737 dev_t dev; 738 { 739 switch (cmd) { 740 #if 0 741 /* 742 * XXX we have no hardware sprites, but might implement them 743 * later in TMS code. 744 */ 745 746 case GRFIOCGSPRITEPOS: 747 return ul_getspritepos (gp, (struct grf_position *) data); 748 749 case GRFIOCSSPRITEPOS: 750 return ul_setspritepos (gp, (struct grf_position *) data); 751 752 case GRFIOCSSPRITEINF: 753 return ul_setspriteinfo (gp, (struct grf_spriteinfo *) data); 754 755 case GRFIOCGSPRITEINF: 756 return ul_getspriteinfo (gp, (struct grf_spriteinfo *) data); 757 758 case GRFIOCGSPRITEMAX: 759 return ul_getspritemax (gp, (struct grf_position *) data); 760 761 #endif 762 763 case GRFIOCGETCMAP: 764 return ul_getcmap (gp, (struct grf_colormap *) data, dev); 765 766 case GRFIOCPUTCMAP: 767 return ul_putcmap (gp, (struct grf_colormap *) data, dev); 768 769 case GRFIOCBITBLT: 770 return ul_bitblt (gp, (struct grf_bitblt *) data, dev); 771 772 case GRFIOCBLANK: 773 return ul_blank (gp, (int *) data, dev); 774 } 775 776 return EINVAL; 777 } 778 779 int 780 ul_getcmap (gp, cmap, dev) 781 struct grf_softc *gp; 782 struct grf_colormap *cmap; 783 dev_t dev; 784 { 785 struct grf_ul_softc *gup; 786 u_int8_t *mymap; 787 int mxidx, error; 788 789 gup = (struct grf_ul_softc *)gp; 790 791 if (minor(dev) & GRFIMDEV) { 792 mxidx = 256; 793 mymap = gup->gus_imcmap; 794 } else { 795 mxidx = 4; 796 mymap = gup->gus_ovcmap; 797 } 798 799 if (cmap->count == 0 || cmap->index >= mxidx) 800 return 0; 801 802 if (cmap->index + cmap->count > mxidx) 803 cmap->count = mxidx - cmap->index; 804 805 /* just copyout from the shadow color map */ 806 807 if ((error = copyout(mymap + cmap->index, cmap->red, cmap->count)) 808 809 || (error = copyout(mymap + mxidx + cmap->index, cmap->green, 810 cmap->count)) 811 812 || (error = copyout(mymap + mxidx * 2 + cmap->index, cmap->blue, 813 cmap->count))) 814 815 return(error); 816 817 return(0); 818 } 819 820 int 821 ul_putcmap (gp, cmap, dev) 822 struct grf_softc *gp; 823 struct grf_colormap *cmap; 824 dev_t dev; 825 { 826 struct grf_ul_softc *gup; 827 struct gspregs *ba; 828 u_int16_t cmd[8]; 829 int x, mxidx, error; 830 u_int8_t *mymap; 831 832 gup = (struct grf_ul_softc *)gp; 833 834 if (minor(dev) & GRFIMDEV) { 835 mxidx = 256; 836 mymap = gup->gus_imcmap; 837 } else { 838 mxidx = 4; 839 mymap = gup->gus_ovcmap; 840 } 841 842 if (cmap->count == 0 || cmap->index >= mxidx) 843 return 0; 844 845 if (cmap->index + cmap->count > mxidx) 846 cmap->count = mxidx - cmap->index; 847 848 /* first copyin to our shadow color map */ 849 850 if ((error = copyin(cmap->red, mymap + cmap->index, cmap->count)) 851 852 || (error = copyin(cmap->green, mymap + cmap->index + mxidx, 853 cmap->count)) 854 855 || (error = copyin(cmap->blue, mymap + cmap->index + mxidx*2, 856 cmap->count))) 857 858 return error; 859 860 861 /* then write from there to the hardware */ 862 ba = (struct gspregs *)gp->g_regkva; 863 /* 864 * XXX This is a bad thing to do. 865 * We should always use the gsp call, or have a means to arbitrate 866 * the usage of the BT458 index register. Else there might be a 867 * race condition (when writing both colormaps at nearly the same 868 * time), where one CPU changes the index register when the other 869 * one has not finished using it. 870 */ 871 if (mxidx > 4) { 872 /* image color map: we can write, with a hack, directly */ 873 ba->ctrl = LBL; 874 ba->hstadrh = 0xfe80; 875 ba->hstadrl = 0x0000; 876 ba->ctrl |= INCW; 877 ba->data = cmap->index; 878 ba->ctrl &= ~INCW; 879 880 for (x=cmap->index; x < cmap->index + cmap->count; ++x) { 881 ba->data = (u_int16_t) mymap[x]; 882 ba->data = (u_int16_t) mymap[x + mxidx]; 883 ba->data = (u_int16_t) mymap[x + mxidx * 2]; 884 } 885 } else { 886 887 /* overlay planes color map: have to call tms to do it */ 888 cmd[0] = GCMD_CMAP; 889 cmd[1] = 1; 890 for (x=cmap->index; x < cmap->index + cmap->count; ++x) { 891 cmd[2] = x; 892 cmd[3] = mymap[x]; 893 cmd[4] = mymap[x + mxidx]; 894 cmd[5] = mymap[x + mxidx * 2]; 895 gsp_write(ba, cmd, 6); 896 } 897 } 898 return 0; 899 } 900 901 int 902 ul_blank(gp, onoff, dev) 903 struct grf_softc *gp; 904 int *onoff; 905 dev_t dev; 906 { 907 struct gspregs *gsp; 908 gsp = (struct gspregs *)gp->g_regkva; 909 gsp->ctrl = (gsp->ctrl & ~(INCR | INCW)) | LBL; 910 gsp->hstadrh = 0xC000; 911 gsp->hstadrl = 0x0080; 912 if (*onoff) 913 gsp->data |= 0x9000; 914 else 915 gsp->data &= ~0x9000; 916 917 return 0; 918 } 919 /* 920 * !!! THIS AREA UNDER CONSTRUCTION !!! 921 */ 922 int ul_BltOpMap[16] = { 923 3, 1, 2, 0, 11, 9, 10, 8, 924 7, 5, 6, 4, 15, 13, 14, 12 925 }; 926 927 int 928 ul_bitblt (gp, bb, dev) 929 struct grf_softc *gp; 930 struct grf_bitblt *bb; 931 dev_t dev; 932 { 933 /* XXX not yet implemented, but pretty trivial */ 934 return EINVAL; 935 } 936 937 void 938 gsp_write(gsp, ptr, size) 939 struct gspregs *gsp; 940 u_short *ptr; 941 size_t size; 942 { 943 u_short put, new_put, next, oc; 944 u_long put_hi, oa; 945 size_t n; 946 947 if (size == 0 || size > 8) 948 return; 949 950 n = size; 951 952 oc = gsp->ctrl; 953 oa = GSPGETHADRS(gsp); 954 955 gsp->ctrl = (oc & ~INCR) | LBL | INCW; 956 GSPSETHADRS(gsp, GSP_MODE_ADRS); 957 gsp->data &= ~GMODE_FLUSH; 958 959 GSPSETHADRS(gsp, PUT_HI_PTR_ADRS); 960 put_hi = gsp->data << 16; 961 962 GSPSETHADRS(gsp, PUT_PTR_ADRS); 963 put = gsp->data; 964 new_put = put + (8<<4); 965 966 GSPSETHADRS(gsp, GET_PTR_ADRS); 967 next = gsp->data; 968 969 while (next == new_put) { 970 /* 971 * we should use an intr. here. unfortunately, we already 972 * are called from an interupt and can't use tsleep. 973 * so we do busy waiting, at least for the moment. 974 */ 975 976 GSPSETHADRS(gsp,GET_PTR_ADRS); 977 next = gsp->data; 978 } 979 980 GSPSETHADRS(gsp,put|put_hi); 981 gsp->data = *ptr++ | 8<<4; 982 while ( --n > 0) { 983 gsp->data = *ptr++; 984 } 985 986 GSPSETHADRS(gsp,PUT_PTR_ADRS); 987 gsp->data = new_put; 988 GSPSETHADRS(gsp,oa); 989 gsp->ctrl = oc; 990 991 return; 992 } 993 994 #endif /* NGRF */ 995
Indexes created Wed Oct 01 13:09:50 GMT 2025