ite_et.c revision 1.11.2.1
1 /* $NetBSD: ite_et.c,v 1.11.2.1 2002/06/23 17:35:15 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Leo Weppelman. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Leo Weppelman. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/conf.h> 35 #include <sys/ioctl.h> 36 #include <sys/malloc.h> 37 #include <sys/device.h> 38 #include <dev/cons.h> 39 40 #include <machine/cpu.h> 41 42 #include <atari/atari/device.h> 43 44 #include <atari/dev/itevar.h> 45 #include <atari/dev/iteioctl.h> 46 #include <atari/dev/grfioctl.h> 47 #include <atari/dev/grf_etreg.h> 48 #include <atari/dev/grfabs_reg.h> 49 #include <atari/dev/grfabs_et.h> 50 #include <atari/dev/grfvar.h> 51 #include <atari/dev/font.h> 52 #include <atari/dev/viewioctl.h> 53 #include <atari/dev/viewvar.h> 54 55 #include "grfet.h" 56 57 /* 58 * This is what ip->priv points to; 59 * it contains local variables for custom-chip ites. 60 */ 61 struct ite_priv { 62 volatile u_char *regkva; 63 }; 64 65 typedef struct ite_priv ipriv_t; 66 67 static ipriv_t con_ipriv; 68 69 /* Console colors */ 70 static u_char etconscolors[3][3] = { /* background, foreground, hilite */ 71 {0x0, 0x0, 0x0}, {0x30, 0x30, 0x30}, { 0x3f, 0x3f, 0x3f} 72 }; 73 74 /* XXX: Shouldn't these be in font.h???? */ 75 extern font_info font_info_8x8; 76 extern font_info font_info_8x16; 77 78 static void grfet_iteinit __P((struct grf_softc *)); 79 static void view_init __P((struct ite_softc *)); 80 static void view_deinit __P((struct ite_softc *)); 81 static int iteet_ioctl __P((struct ite_softc *, u_long, caddr_t, int, 82 struct proc *)); 83 static int ite_newsize __P((struct ite_softc *, struct itewinsize *)); 84 static void et_inittextmode __P((struct ite_softc *, et_sv_reg_t *, int)); 85 void et_cursor __P((struct ite_softc *ip, int flag)); 86 void et_clear __P((struct ite_softc *ip, int sy, int sx, int h, int w)); 87 void et_putc __P((struct ite_softc *ip, int c, int dy, int dx, int mode)); 88 void et_scroll __P((struct ite_softc *ip, int sy, int sx, int count, 89 int dir)); 90 91 /* 92 * grfet config stuff 93 */ 94 void grfetattach __P((struct device *, struct device *, void *)); 95 int grfetmatch __P((struct device *, struct cfdata *, void *)); 96 int grfetprint __P((void *, const char *)); 97 98 struct cfattach grfet_ca = { 99 sizeof(struct grf_softc), grfetmatch, grfetattach 100 }; 101 102 /* 103 * only used in console init. 104 */ 105 static struct cfdata *cfdata_grf = NULL; 106 107 int 108 grfetmatch(pdp, cfp, auxp) 109 struct device *pdp; 110 struct cfdata *cfp; 111 void *auxp; 112 { 113 static int card_probed = -1; 114 static int did_consinit = 0; 115 grf_auxp_t *grf_auxp = auxp; 116 117 if (card_probed <= 0) { 118 if (card_probed == 0) /* Probed but failed */ 119 return 0; 120 card_probed = 0; 121 122 /* 123 * Check if the layers we depend on exist 124 */ 125 if(!(machineid & ATARI_HADES)) 126 return 0; 127 if (!et_probe_card()) 128 return 0; 129 if (grfabs_probe(&et_probe_video) == 0) 130 return 0; 131 viewprobe(); 132 card_probed = 1; /* Probed and found */ 133 } 134 135 if (atari_realconfig == 0) { 136 /* 137 * Early console init. Only match first unit. 138 */ 139 if (did_consinit) 140 return 0; 141 if (viewopen(cfp->cf_unit, 0, 0, NULL)) 142 return 0; 143 cfdata_grf = cfp; 144 did_consinit = 1; 145 return 1; 146 } 147 148 /* 149 * Normal config. When we are called directly from the grfbus, 150 * we only match the first unit. The attach function will call us for 151 * the other configured units. 152 */ 153 if (grf_auxp->from_bus_match 154 && ((did_consinit > 1) || !et_probe_card())) 155 return 0; 156 157 if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit)) 158 return 0; 159 160 /* 161 * Final constraint: each grf needs a view.... 162 */ 163 if((cfdata_grf == NULL) || (did_consinit > 1)) { 164 if(viewopen(cfp->cf_unit, 0, 0, NULL)) 165 return 0; 166 } 167 did_consinit = 2; 168 return 1; 169 } 170 171 /* 172 * attach: initialize the grf-structure and try to attach an ite to us. 173 * note : dp is NULL during early console init. 174 */ 175 void 176 grfetattach(pdp, dp, auxp) 177 struct device *pdp, *dp; 178 void *auxp; 179 { 180 static struct grf_softc congrf; 181 static int first_attach = 1; 182 grf_auxp_t *grf_bus_auxp = auxp; 183 grf_auxp_t grf_auxp; 184 struct grf_softc *gp; 185 int maj; 186 187 /* 188 * find our major device number 189 */ 190 for(maj = 0; maj < nchrdev; maj++) 191 if (cdevsw[maj].d_open == grfopen) 192 break; 193 194 /* 195 * Handle exeption case: early console init 196 */ 197 if(dp == NULL) { 198 congrf.g_unit = cfdata_grf->cf_unit; 199 congrf.g_grfdev = makedev(maj, congrf.g_unit); 200 congrf.g_itedev = (dev_t)-1; 201 congrf.g_flags = GF_ALIVE; 202 congrf.g_mode = grf_mode; 203 congrf.g_conpri = CN_INTERNAL; 204 congrf.g_viewdev = congrf.g_unit; 205 grfet_iteinit(&congrf); 206 grf_viewsync(&congrf); 207 208 /* Attach console ite */ 209 atari_config_found(cfdata_grf, NULL, &congrf, grfetprint); 210 return; 211 } 212 213 gp = (struct grf_softc *)dp; 214 gp->g_unit = gp->g_device.dv_unit; 215 grfsp[gp->g_unit] = gp; 216 217 if((cfdata_grf != NULL) && (gp->g_unit == congrf.g_unit)) { 218 /* 219 * We inited earlier just copy the info, take care 220 * not to copy the device struct though. 221 */ 222 bcopy(&congrf.g_display, &gp->g_display, 223 (char *)&gp[1] - (char *)&gp->g_display); 224 } 225 else { 226 gp->g_grfdev = makedev(maj, gp->g_unit); 227 gp->g_itedev = (dev_t)-1; 228 gp->g_flags = GF_ALIVE; 229 gp->g_mode = grf_mode; 230 gp->g_conpri = 0; 231 gp->g_viewdev = gp->g_unit; 232 grfet_iteinit(gp); 233 grf_viewsync(gp); 234 } 235 236 printf(": %dx%d", gp->g_display.gd_dwidth, gp->g_display.gd_dheight); 237 if(gp->g_display.gd_colors == 2) 238 printf(" monochrome\n"); 239 else printf(" colors %d\n", gp->g_display.gd_colors); 240 241 /* 242 * try and attach an ite 243 */ 244 config_found(dp, gp, grfetprint); 245 246 /* 247 * If attaching the first unit, go ahead and 'find' the rest of us 248 */ 249 if (first_attach) { 250 first_attach = 0; 251 grf_auxp.from_bus_match = 0; 252 for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) { 253 config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint); 254 } 255 } 256 } 257 258 int 259 grfetprint(auxp, pnp) 260 void *auxp; 261 const char *pnp; 262 { 263 if(pnp) /* XXX */ 264 printf("ite at %s", pnp); 265 return(UNCONF); 266 } 267 268 /* 269 * Init ite portion of grf_softc struct 270 */ 271 static void 272 grfet_iteinit(gp) 273 struct grf_softc *gp; 274 { 275 276 gp->g_itecursor = et_cursor; 277 gp->g_iteputc = et_putc; 278 gp->g_iteclear = et_clear; 279 gp->g_itescroll = et_scroll; 280 gp->g_iteinit = view_init; 281 gp->g_itedeinit = view_deinit; 282 } 283 284 static void 285 view_deinit(ip) 286 struct ite_softc *ip; 287 { 288 ip->flags &= ~ITE_INITED; 289 } 290 291 static void 292 view_init(ip) 293 register struct ite_softc *ip; 294 { 295 struct itewinsize wsz; 296 ipriv_t *cci; 297 view_t *view; 298 save_area_t *et_save; 299 300 if((cci = ip->priv) != NULL) 301 return; 302 303 ip->itexx_ioctl = iteet_ioctl; 304 305 #if defined(KFONT_8X8) 306 ip->font = font_info_8x8; 307 #else 308 ip->font = font_info_8x16; 309 #endif 310 311 /* Find the correct set of rendering routines for this font. */ 312 if(ip->font.width != 8) 313 panic("kernel font size not supported"); 314 315 if(!atari_realconfig) 316 ip->priv = cci = &con_ipriv; 317 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 318 if(cci == NULL) 319 panic("No memory for ite-view"); 320 bzero(cci, sizeof(*cci)); 321 322 wsz.x = ite_default_x; 323 wsz.y = ite_default_y; 324 wsz.width = ite_default_width; 325 wsz.height = ite_default_height; 326 wsz.depth = ite_default_depth; 327 328 ite_newsize (ip, &wsz); 329 330 view = viewview(ip->grf->g_viewdev); 331 cci->regkva = view->bitmap->regs; 332 333 /* 334 * Only console will be turned on by default.. 335 */ 336 if(ip->flags & ITE_ISCONS) 337 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 338 339 /* 340 * Activate text-mode settings 341 */ 342 et_save = (save_area_t *)view->save_area; 343 if (et_save == NULL) 344 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 345 else { 346 et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY); 347 et_save->fb_size = ip->cols * ip->rows; 348 } 349 } 350 351 static int 352 ite_newsize(ip, winsz) 353 struct ite_softc *ip; 354 struct itewinsize *winsz; 355 { 356 struct view_size vs; 357 int error = 0; 358 save_area_t *et_save; 359 view_t *view; 360 361 vs.x = winsz->x; 362 vs.y = winsz->y; 363 vs.width = winsz->width; 364 vs.height = winsz->height; 365 vs.depth = winsz->depth; 366 367 error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0, 368 NOPROC); 369 view = viewview(ip->grf->g_viewdev); 370 371 /* 372 * Reinitialize our structs 373 */ 374 ip->cols = view->display.width / ip->font.width; 375 ip->rows = view->display.height / ip->font.height; 376 377 /* 378 * save new values so that future opens use them 379 * this may not be correct when we implement Virtual Consoles 380 */ 381 ite_default_height = view->display.height; 382 ite_default_width = view->display.width; 383 ite_default_x = view->display.x; 384 ite_default_y = view->display.y; 385 ite_default_depth = view->bitmap->depth; 386 387 et_save = (save_area_t *)view->save_area; 388 if (et_save == NULL) 389 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 390 else { 391 et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY); 392 et_save->fb_size = ip->cols * ip->rows; 393 } 394 et_clear(ip, 0, 0, ip->rows, ip->cols); 395 396 return(error); 397 } 398 399 int 400 iteet_ioctl(ip, cmd, addr, flag, p) 401 struct ite_softc *ip; 402 u_long cmd; 403 caddr_t addr; 404 int flag; 405 struct proc *p; 406 { 407 struct winsize ws; 408 struct itewinsize *is; 409 int error = 0; 410 view_t *view = viewview(ip->grf->g_viewdev); 411 412 switch (cmd) { 413 case ITEIOCSWINSZ: 414 is = (struct itewinsize *)addr; 415 416 if(ite_newsize(ip, is)) 417 error = ENOMEM; 418 else { 419 view = viewview(ip->grf->g_viewdev); 420 ws.ws_row = ip->rows; 421 ws.ws_col = ip->cols; 422 ws.ws_xpixel = view->display.width; 423 ws.ws_ypixel = view->display.height; 424 ite_reset(ip); 425 /* 426 * XXX tell tty about the change 427 * XXX this is messy, but works 428 */ 429 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 430 } 431 break; 432 case VIOCSCMAP: 433 case VIOCGCMAP: 434 /* 435 * XXX watchout for that NOPROC. its not really the kernel 436 * XXX talking these two commands don't use the proc pointer 437 * XXX though. 438 */ 439 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC); 440 break; 441 default: 442 error = EPASSTHROUGH; 443 break; 444 } 445 return (error); 446 } 447 448 void 449 et_cursor(ip, flag) 450 struct ite_softc *ip; 451 int flag; 452 { 453 volatile u_char *ba; 454 view_t *v; 455 u_long cpos; 456 457 ba = ((ipriv_t*)ip->priv)->regkva; 458 v = viewview(ip->grf->g_viewdev); 459 460 /* 461 * Don't update the cursor when not on display 462 */ 463 if (!(v->flags & VF_DISPLAY)) 464 return; 465 466 switch (flag) { 467 case DRAW_CURSOR: 468 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 469 case MOVE_CURSOR: 470 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 471 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 472 cpos += ip->curx + ip->cury * ip->cols; 473 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 474 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 475 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 476 477 ip->cursorx = ip->curx; 478 ip->cursory = ip->cury; 479 break; 480 case ERASE_CURSOR: 481 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 482 case START_CURSOROPT: 483 case END_CURSOROPT: 484 default: 485 break; 486 } 487 } 488 489 void 490 et_putc(ip, c, dy, dx, mode) 491 struct ite_softc *ip; 492 int c; 493 int dy; 494 int dx; 495 int mode; 496 { 497 view_t *v = viewview(ip->grf->g_viewdev); 498 u_char attr; 499 u_short *cp; 500 501 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 502 if (mode & ATTR_UL) attr |= 0x01; 503 if (mode & ATTR_BOLD) attr |= 0x08; 504 if (mode & ATTR_BLINK) attr |= 0x80; 505 506 cp = (u_short*)v->bitmap->plane; 507 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 508 } 509 510 void 511 et_clear(ip, sy, sx, h, w) 512 struct ite_softc *ip; 513 int sy; 514 int sx; 515 int h; 516 int w; 517 { 518 /* et_clear and et_scroll both rely on ite passing arguments 519 * which describe continuous regions. For a VT200 terminal, 520 * this is safe behavior. 521 */ 522 view_t *v = viewview(ip->grf->g_viewdev); 523 u_short *dest; 524 int len; 525 526 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 527 for(len = w * h; len-- ;) 528 *dest++ = 0x2007; 529 } 530 531 void 532 et_scroll(ip, sy, sx, count, dir) 533 struct ite_softc *ip; 534 int sy; 535 int sx; 536 int count; 537 int dir; 538 { 539 view_t *v = viewview(ip->grf->g_viewdev); 540 u_short *fb; 541 u_short *src, *dst; 542 int len; 543 544 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 545 switch (dir) { 546 case SCROLL_UP: 547 src = fb; 548 dst = fb - count * ip->cols; 549 len = (ip->bottom_margin + 1 - sy) * ip->cols; 550 break; 551 case SCROLL_DOWN: 552 src = fb; 553 dst = fb + count * ip->cols; 554 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 555 break; 556 case SCROLL_RIGHT: 557 src = fb + sx; 558 dst = fb + sx + count; 559 len = ip->cols - sx + count; 560 break; 561 case SCROLL_LEFT: 562 src = fb + sx; 563 dst = fb + sx - count; 564 len = ip->cols - sx; 565 break; 566 default: 567 return; 568 } 569 if (src > dst) { 570 while (len--) 571 *dst++ = *src++; 572 } 573 else { 574 src = &src[len]; 575 dst = &dst[len]; 576 while (len--) 577 *--dst = *--src; 578 } 579 } 580 581 static void 582 et_inittextmode(ip, etregs, loadfont) 583 struct ite_softc *ip; 584 et_sv_reg_t *etregs; 585 int loadfont; 586 { 587 volatile u_char *ba; 588 font_info *fd; 589 u_char *fb; 590 u_char *c, *f, tmp; 591 u_short z, y; 592 int s; 593 view_t *v = viewview(ip->grf->g_viewdev); 594 et_sv_reg_t loc_regs; 595 596 if (etregs == NULL) { 597 etregs = &loc_regs; 598 et_hwsave(etregs); 599 } 600 601 ba = ((ipriv_t*)ip->priv)->regkva; 602 fb = v->bitmap->plane; 603 604 #if defined(KFONT_8X8) 605 fd = &font_info_8x8; 606 #else 607 fd = &font_info_8x16; 608 #endif 609 610 if (loadfont) { /* XXX: We should set the colormap */ 611 /* 612 * set colors (B&W) 613 */ 614 vgaw(ba, VDAC_ADDRESS_W, 0); 615 for (z = 0; z < 256; z++) { 616 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 617 618 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 619 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 620 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 621 } 622 623 /* 624 * Enter a suitable mode to download the font. This 625 * basically means sequential addressing mode 626 */ 627 s = splhigh(); 628 629 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 630 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 631 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 632 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 633 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 634 WGfx(ba, GCT_ID_MISC, 0x04); 635 splx(s); 636 637 /* 638 * load text font into beginning of display memory. Each 639 * character cell is 32 bytes long (enough for 4 planes) 640 */ 641 for (z = 0, c = fb; z < 256 * 32; z++) 642 *c++ = 0; 643 644 c = (unsigned char *) (fb) + (32 * fd->font_lo); 645 f = fd->font_p; 646 z = fd->font_lo; 647 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 648 for (y = 0; y < fd->height; y++) { 649 *c++ = *f++; 650 } 651 } 652 653 /* 654 * Odd/Even addressing 655 */ 656 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 657 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 658 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 659 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 660 etregs->grf[GCT_ID_MISC] = 0x06; 661 662 /* 663 * Font height + underline location 664 */ 665 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 666 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 667 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 668 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 669 670 /* 671 * Cursor setup 672 */ 673 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 674 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 675 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 676 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 677 678 /* 679 * Enter text mode 680 */ 681 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 682 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 683 684 #if 1 685 if (loadfont || (etregs == &loc_regs)) 686 #else 687 if (etregs == &loc_regs) 688 #endif 689 et_hwrest(etregs); 690 } 691
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