ite_et.c revision 1.7
1 /* $NetBSD: ite_et.c,v 1.7 1997/07/15 06:48:06 leo 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 /* XXX: move to ite.c */ 92 extern int ite_default_x; 93 extern int ite_default_y; 94 extern int ite_default_width; 95 extern int ite_default_depth; 96 extern int ite_default_height; 97 98 /* 99 * grfet config stuff 100 */ 101 void grfetattach __P((struct device *, struct device *, void *)); 102 int grfetmatch __P((struct device *, struct cfdata *, void *)); 103 int grfetprint __P((void *, const char *)); 104 105 struct cfattach grfet_ca = { 106 sizeof(struct grf_softc), grfetmatch, grfetattach 107 }; 108 109 struct cfdriver grfet_cd = { 110 NULL, "grfet", DV_DULL 111 }; 112 113 /* 114 * only used in console init. 115 */ 116 static struct cfdata *cfdata_grf = NULL; 117 118 int 119 grfetmatch(pdp, cfp, auxp) 120 struct device *pdp; 121 struct cfdata *cfp; 122 void *auxp; 123 { 124 static int card_probed = -1; 125 grf_auxp_t *grf_auxp = auxp; 126 127 if (card_probed <= 0) { 128 if (card_probed == 0) /* Probed but failed */ 129 return 0; 130 card_probed = 0; 131 132 /* 133 * Check if the layers we depend on exist 134 */ 135 if(!(machineid & ATARI_HADES)) 136 return 0; 137 if (!et_probe_card()) 138 return 0; 139 if (grfabs_probe(&et_probe_video) == 0) 140 return 0; 141 viewprobe(); 142 card_probed = 1; /* Probed and found */ 143 } 144 145 if (atari_realconfig == 0) { 146 /* 147 * Early console init. Only match unit 0. 148 */ 149 if (cfp->cf_unit != 0) 150 return 0; 151 if (viewopen(0, 0, 0, NULL)) 152 return 0; 153 cfdata_grf = cfp; 154 return 1; 155 } 156 157 /* 158 * Normal config. When we are called directly from the grfbus, 159 * we only match unit 0. The attach function will call us for 160 * the other configured units. 161 */ 162 if (grf_auxp->from_bus_match 163 && ((cfp->cf_unit != 0) || !et_probe_card())) 164 return 0; 165 166 if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit)) 167 return 0; 168 169 /* 170 * Final constraint: each grf needs a view.... 171 */ 172 if((cfdata_grf == NULL) || (cfp->cf_unit != 0)) { 173 if(viewopen(cfp->cf_unit, 0, 0, NULL)) 174 return 0; 175 } 176 return 1; 177 } 178 179 /* 180 * attach: initialize the grf-structure and try to attach an ite to us. 181 * note : dp is NULL during early console init. 182 */ 183 void 184 grfetattach(pdp, dp, auxp) 185 struct device *pdp, *dp; 186 void *auxp; 187 { 188 static struct grf_softc congrf; 189 grf_auxp_t *grf_bus_auxp = auxp; 190 grf_auxp_t grf_auxp; 191 struct grf_softc *gp; 192 int maj; 193 194 /* 195 * find our major device number 196 */ 197 for(maj = 0; maj < nchrdev; maj++) 198 if (cdevsw[maj].d_open == grfopen) 199 break; 200 201 /* 202 * Handle exeption case: early console init 203 */ 204 if(dp == NULL) { 205 congrf.g_unit = 0; 206 congrf.g_grfdev = makedev(maj, 0); 207 congrf.g_itedev = (dev_t)-1; 208 congrf.g_flags = GF_ALIVE; 209 congrf.g_mode = grf_mode; 210 congrf.g_conpri = CN_INTERNAL; 211 congrf.g_viewdev = congrf.g_unit; 212 grfet_iteinit(&congrf); 213 grf_viewsync(&congrf); 214 215 /* Attach console ite */ 216 atari_config_found(cfdata_grf, NULL, &congrf, grfetprint); 217 return; 218 } 219 220 gp = (struct grf_softc *)dp; 221 gp->g_unit = gp->g_device.dv_unit; 222 grfsp[gp->g_unit] = gp; 223 224 if((cfdata_grf != NULL) && (gp->g_unit == 0)) { 225 /* 226 * We inited earlier just copy the info, take care 227 * not to copy the device struct though. 228 */ 229 bcopy(&congrf.g_display, &gp->g_display, 230 (char *)&gp[1] - (char *)&gp->g_display); 231 } 232 else { 233 gp->g_grfdev = makedev(maj, gp->g_unit); 234 gp->g_itedev = (dev_t)-1; 235 gp->g_flags = GF_ALIVE; 236 gp->g_mode = grf_mode; 237 gp->g_conpri = 0; 238 gp->g_viewdev = gp->g_unit; 239 grfet_iteinit(gp); 240 grf_viewsync(gp); 241 } 242 243 printf(": %dx%d", gp->g_display.gd_dwidth, gp->g_display.gd_dheight); 244 if(gp->g_display.gd_colors == 2) 245 printf(" monochrome\n"); 246 else printf(" colors %d\n", gp->g_display.gd_colors); 247 248 /* 249 * try and attach an ite 250 */ 251 config_found(dp, gp, grfetprint); 252 253 /* 254 * If attaching unit 0, go ahead and 'find' the rest of us 255 */ 256 if (gp->g_unit == 0) { 257 grf_auxp.from_bus_match = 0; 258 for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) { 259 config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint); 260 } 261 } 262 } 263 264 int 265 grfetprint(auxp, pnp) 266 void *auxp; 267 const char *pnp; 268 { 269 if(pnp) /* XXX */ 270 printf("ite at %s", pnp); 271 return(UNCONF); 272 } 273 274 /* 275 * Init ite portion of grf_softc struct 276 */ 277 static void 278 grfet_iteinit(gp) 279 struct grf_softc *gp; 280 { 281 282 gp->g_itecursor = et_cursor; 283 gp->g_iteputc = et_putc; 284 gp->g_iteclear = et_clear; 285 gp->g_itescroll = et_scroll; 286 gp->g_iteinit = view_init; 287 gp->g_itedeinit = view_deinit; 288 } 289 290 static void 291 view_deinit(ip) 292 struct ite_softc *ip; 293 { 294 ip->flags &= ~ITE_INITED; 295 } 296 297 static void 298 view_init(ip) 299 register struct ite_softc *ip; 300 { 301 struct itewinsize wsz; 302 ipriv_t *cci; 303 view_t *view; 304 save_area_t *et_save; 305 306 if((cci = ip->priv) != NULL) 307 return; 308 309 ip->itexx_ioctl = iteet_ioctl; 310 311 #if defined(KFONT_8X8) 312 ip->font = font_info_8x8; 313 #else 314 ip->font = font_info_8x16; 315 #endif 316 317 /* Find the correct set of rendering routines for this font. */ 318 if(ip->font.width != 8) 319 panic("kernel font size not supported"); 320 321 if(!atari_realconfig) 322 ip->priv = cci = &con_ipriv; 323 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 324 if(cci == NULL) 325 panic("No memory for ite-view"); 326 bzero(cci, sizeof(*cci)); 327 328 wsz.x = ite_default_x; 329 wsz.y = ite_default_y; 330 wsz.width = ite_default_width; 331 wsz.height = ite_default_height; 332 wsz.depth = ite_default_depth; 333 334 ite_newsize (ip, &wsz); 335 336 view = viewview(ip->grf->g_viewdev); 337 cci->regkva = view->bitmap->regs; 338 339 /* 340 * Only console will be turned on by default.. 341 */ 342 if(ip->flags & ITE_ISCONS) 343 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 344 345 /* 346 * Activate text-mode settings 347 */ 348 et_save = (save_area_t *)view->save_area; 349 if (et_save == NULL) 350 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 351 else { 352 et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY); 353 et_save->fb_size = ip->cols * ip->rows; 354 } 355 } 356 357 static int 358 ite_newsize(ip, winsz) 359 struct ite_softc *ip; 360 struct itewinsize *winsz; 361 { 362 struct view_size vs; 363 int error = 0; 364 save_area_t *et_save; 365 view_t *view; 366 367 vs.x = winsz->x; 368 vs.y = winsz->y; 369 vs.width = winsz->width; 370 vs.height = winsz->height; 371 vs.depth = winsz->depth; 372 373 error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0, 374 NOPROC); 375 view = viewview(ip->grf->g_viewdev); 376 377 /* 378 * Reinitialize our structs 379 */ 380 ip->cols = view->display.width / ip->font.width; 381 ip->rows = view->display.height / ip->font.height; 382 383 /* 384 * save new values so that future opens use them 385 * this may not be correct when we implement Virtual Consoles 386 */ 387 ite_default_height = view->display.height; 388 ite_default_width = view->display.width; 389 ite_default_x = view->display.x; 390 ite_default_y = view->display.y; 391 ite_default_depth = view->bitmap->depth; 392 393 et_save = (save_area_t *)view->save_area; 394 if (et_save == NULL) 395 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 396 else { 397 et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY); 398 et_save->fb_size = ip->cols * ip->rows; 399 } 400 et_clear(ip, 0, 0, ip->rows, ip->cols); 401 402 return(error); 403 } 404 405 int 406 iteet_ioctl(ip, cmd, addr, flag, p) 407 struct ite_softc *ip; 408 u_long cmd; 409 caddr_t addr; 410 int flag; 411 struct proc *p; 412 { 413 struct winsize ws; 414 struct itewinsize *is; 415 int error = 0; 416 view_t *view = viewview(ip->grf->g_viewdev); 417 418 switch (cmd) { 419 case ITEIOCSWINSZ: 420 is = (struct itewinsize *)addr; 421 422 if(ite_newsize(ip, is)) 423 error = ENOMEM; 424 else { 425 view = viewview(ip->grf->g_viewdev); 426 ws.ws_row = ip->rows; 427 ws.ws_col = ip->cols; 428 ws.ws_xpixel = view->display.width; 429 ws.ws_ypixel = view->display.height; 430 ite_reset(ip); 431 /* 432 * XXX tell tty about the change 433 * XXX this is messy, but works 434 */ 435 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 436 } 437 break; 438 case VIOCSCMAP: 439 case VIOCGCMAP: 440 /* 441 * XXX watchout for that NOPROC. its not really the kernel 442 * XXX talking these two commands don't use the proc pointer 443 * XXX though. 444 */ 445 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC); 446 break; 447 default: 448 error = -1; 449 break; 450 } 451 return (error); 452 } 453 454 void 455 et_cursor(ip, flag) 456 struct ite_softc *ip; 457 int flag; 458 { 459 volatile u_char *ba; 460 view_t *v; 461 u_long cpos; 462 463 ba = ((ipriv_t*)ip->priv)->regkva; 464 v = viewview(ip->grf->g_viewdev); 465 466 /* 467 * Don't update the cursor when not on display 468 */ 469 if (!(v->flags & VF_DISPLAY)) 470 return; 471 472 switch (flag) { 473 case DRAW_CURSOR: 474 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 475 case MOVE_CURSOR: 476 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 477 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 478 cpos += ip->curx + ip->cury * ip->cols; 479 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 480 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 481 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 482 483 ip->cursorx = ip->curx; 484 ip->cursory = ip->cury; 485 break; 486 case ERASE_CURSOR: 487 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 488 case START_CURSOROPT: 489 case END_CURSOROPT: 490 default: 491 break; 492 } 493 } 494 495 void 496 et_putc(ip, c, dy, dx, mode) 497 struct ite_softc *ip; 498 int c; 499 int dy; 500 int dx; 501 int mode; 502 { 503 view_t *v = viewview(ip->grf->g_viewdev); 504 u_char attr; 505 u_short *cp; 506 507 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 508 if (mode & ATTR_UL) attr |= 0x01; 509 if (mode & ATTR_BOLD) attr |= 0x08; 510 if (mode & ATTR_BLINK) attr |= 0x80; 511 512 cp = (u_short*)v->bitmap->plane; 513 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 514 } 515 516 void 517 et_clear(ip, sy, sx, h, w) 518 struct ite_softc *ip; 519 int sy; 520 int sx; 521 int h; 522 int w; 523 { 524 /* cl_clear and cl_scroll both rely on ite passing arguments 525 * which describe continuous regions. For a VT200 terminal, 526 * this is safe behavior. 527 */ 528 view_t *v = viewview(ip->grf->g_viewdev); 529 u_short *dest; 530 int len; 531 532 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 533 for(len = w * h; len-- ;) 534 *dest++ = 0x2007; 535 } 536 537 void 538 et_scroll(ip, sy, sx, count, dir) 539 struct ite_softc *ip; 540 int sy; 541 int sx; 542 int count; 543 int dir; 544 { 545 view_t *v = viewview(ip->grf->g_viewdev); 546 u_short *fb; 547 u_short *src, *dst; 548 int len; 549 550 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 551 switch (dir) { 552 case SCROLL_UP: 553 src = fb; 554 dst = fb - count * ip->cols; 555 len = (ip->bottom_margin + 1 - sy) * ip->cols; 556 break; 557 case SCROLL_DOWN: 558 src = fb; 559 dst = fb + count * ip->cols; 560 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 561 break; 562 case SCROLL_RIGHT: 563 src = fb + sx; 564 dst = fb + sx + count; 565 len = ip->cols - sx + count; 566 break; 567 case SCROLL_LEFT: 568 src = fb + sx; 569 dst = fb + sx - count; 570 len = ip->cols - sx; 571 break; 572 default: 573 return; 574 } 575 if (src > dst) { 576 while (len--) 577 *dst++ = *src++; 578 } 579 else { 580 src = &src[len]; 581 dst = &dst[len]; 582 while (len--) 583 *--dst = *--src; 584 } 585 } 586 587 static void 588 et_inittextmode(ip, etregs, loadfont) 589 struct ite_softc *ip; 590 et_sv_reg_t *etregs; 591 int loadfont; 592 { 593 volatile u_char *ba; 594 font_info *fd; 595 u_char *fb; 596 u_char *c, *f, tmp; 597 u_short z, y; 598 int s; 599 view_t *v = viewview(ip->grf->g_viewdev); 600 et_sv_reg_t loc_regs; 601 602 if (etregs == NULL) { 603 etregs = &loc_regs; 604 et_hwsave(etregs); 605 } 606 607 ba = ((ipriv_t*)ip->priv)->regkva; 608 fb = v->bitmap->plane; 609 610 #if defined(KFONT_8X8) 611 fd = &font_info_8x8; 612 #else 613 fd = &font_info_8x16; 614 #endif 615 616 if (loadfont) { /* XXX: We should set the colormap */ 617 /* 618 * set colors (B&W) 619 */ 620 vgaw(ba, VDAC_ADDRESS_W, 0); 621 for (z = 0; z < 256; z++) { 622 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 623 624 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 625 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 626 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 627 } 628 629 /* 630 * Enter a suitable mode to download the font. This 631 * basically means sequential addressing mode 632 */ 633 s = splhigh(); 634 635 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 636 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 637 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 638 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 639 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 640 WGfx(ba, GCT_ID_MISC, 0x04); 641 splx(s); 642 643 /* 644 * load text font into beginning of display memory. Each 645 * character cell is 32 bytes long (enough for 4 planes) 646 */ 647 for (z = 0, c = fb; z < 256 * 32; z++) 648 *c++ = 0; 649 650 c = (unsigned char *) (fb) + (32 * fd->font_lo); 651 f = fd->font_p; 652 z = fd->font_lo; 653 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 654 for (y = 0; y < fd->height; y++) { 655 *c++ = *f++; 656 } 657 } 658 659 /* 660 * Odd/Even addressing 661 */ 662 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 663 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 664 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 665 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 666 etregs->grf[GCT_ID_MISC] = 0x06; 667 668 /* 669 * Font height + underline location 670 */ 671 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 672 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 673 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 674 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 675 676 /* 677 * Cursor setup 678 */ 679 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 680 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 681 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 682 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 683 684 /* 685 * Enter text mode 686 */ 687 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 688 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 689 690 #if 1 691 if (loadfont || (etregs == &loc_regs)) 692 #else 693 if (etregs == &loc_regs) 694 #endif 695 et_hwrest(etregs); 696 } 697
Indexes created Mon Sep 29 21:09:56 GMT 2025