ite_et.c revision 1.8
1 /* $NetBSD: ite_et.c,v 1.8 1998/01/12 18:04:09 thorpej 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 /* 110 * only used in console init. 111 */ 112 static struct cfdata *cfdata_grf = NULL; 113 114 int 115 grfetmatch(pdp, cfp, auxp) 116 struct device *pdp; 117 struct cfdata *cfp; 118 void *auxp; 119 { 120 static int card_probed = -1; 121 grf_auxp_t *grf_auxp = auxp; 122 123 if (card_probed <= 0) { 124 if (card_probed == 0) /* Probed but failed */ 125 return 0; 126 card_probed = 0; 127 128 /* 129 * Check if the layers we depend on exist 130 */ 131 if(!(machineid & ATARI_HADES)) 132 return 0; 133 if (!et_probe_card()) 134 return 0; 135 if (grfabs_probe(&et_probe_video) == 0) 136 return 0; 137 viewprobe(); 138 card_probed = 1; /* Probed and found */ 139 } 140 141 if (atari_realconfig == 0) { 142 /* 143 * Early console init. Only match unit 0. 144 */ 145 if (cfp->cf_unit != 0) 146 return 0; 147 if (viewopen(0, 0, 0, NULL)) 148 return 0; 149 cfdata_grf = cfp; 150 return 1; 151 } 152 153 /* 154 * Normal config. When we are called directly from the grfbus, 155 * we only match unit 0. The attach function will call us for 156 * the other configured units. 157 */ 158 if (grf_auxp->from_bus_match 159 && ((cfp->cf_unit != 0) || !et_probe_card())) 160 return 0; 161 162 if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit)) 163 return 0; 164 165 /* 166 * Final constraint: each grf needs a view.... 167 */ 168 if((cfdata_grf == NULL) || (cfp->cf_unit != 0)) { 169 if(viewopen(cfp->cf_unit, 0, 0, NULL)) 170 return 0; 171 } 172 return 1; 173 } 174 175 /* 176 * attach: initialize the grf-structure and try to attach an ite to us. 177 * note : dp is NULL during early console init. 178 */ 179 void 180 grfetattach(pdp, dp, auxp) 181 struct device *pdp, *dp; 182 void *auxp; 183 { 184 static struct grf_softc congrf; 185 grf_auxp_t *grf_bus_auxp = auxp; 186 grf_auxp_t grf_auxp; 187 struct grf_softc *gp; 188 int maj; 189 190 /* 191 * find our major device number 192 */ 193 for(maj = 0; maj < nchrdev; maj++) 194 if (cdevsw[maj].d_open == grfopen) 195 break; 196 197 /* 198 * Handle exeption case: early console init 199 */ 200 if(dp == NULL) { 201 congrf.g_unit = 0; 202 congrf.g_grfdev = makedev(maj, 0); 203 congrf.g_itedev = (dev_t)-1; 204 congrf.g_flags = GF_ALIVE; 205 congrf.g_mode = grf_mode; 206 congrf.g_conpri = CN_INTERNAL; 207 congrf.g_viewdev = congrf.g_unit; 208 grfet_iteinit(&congrf); 209 grf_viewsync(&congrf); 210 211 /* Attach console ite */ 212 atari_config_found(cfdata_grf, NULL, &congrf, grfetprint); 213 return; 214 } 215 216 gp = (struct grf_softc *)dp; 217 gp->g_unit = gp->g_device.dv_unit; 218 grfsp[gp->g_unit] = gp; 219 220 if((cfdata_grf != NULL) && (gp->g_unit == 0)) { 221 /* 222 * We inited earlier just copy the info, take care 223 * not to copy the device struct though. 224 */ 225 bcopy(&congrf.g_display, &gp->g_display, 226 (char *)&gp[1] - (char *)&gp->g_display); 227 } 228 else { 229 gp->g_grfdev = makedev(maj, gp->g_unit); 230 gp->g_itedev = (dev_t)-1; 231 gp->g_flags = GF_ALIVE; 232 gp->g_mode = grf_mode; 233 gp->g_conpri = 0; 234 gp->g_viewdev = gp->g_unit; 235 grfet_iteinit(gp); 236 grf_viewsync(gp); 237 } 238 239 printf(": %dx%d", gp->g_display.gd_dwidth, gp->g_display.gd_dheight); 240 if(gp->g_display.gd_colors == 2) 241 printf(" monochrome\n"); 242 else printf(" colors %d\n", gp->g_display.gd_colors); 243 244 /* 245 * try and attach an ite 246 */ 247 config_found(dp, gp, grfetprint); 248 249 /* 250 * If attaching unit 0, go ahead and 'find' the rest of us 251 */ 252 if (gp->g_unit == 0) { 253 grf_auxp.from_bus_match = 0; 254 for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) { 255 config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint); 256 } 257 } 258 } 259 260 int 261 grfetprint(auxp, pnp) 262 void *auxp; 263 const char *pnp; 264 { 265 if(pnp) /* XXX */ 266 printf("ite at %s", pnp); 267 return(UNCONF); 268 } 269 270 /* 271 * Init ite portion of grf_softc struct 272 */ 273 static void 274 grfet_iteinit(gp) 275 struct grf_softc *gp; 276 { 277 278 gp->g_itecursor = et_cursor; 279 gp->g_iteputc = et_putc; 280 gp->g_iteclear = et_clear; 281 gp->g_itescroll = et_scroll; 282 gp->g_iteinit = view_init; 283 gp->g_itedeinit = view_deinit; 284 } 285 286 static void 287 view_deinit(ip) 288 struct ite_softc *ip; 289 { 290 ip->flags &= ~ITE_INITED; 291 } 292 293 static void 294 view_init(ip) 295 register struct ite_softc *ip; 296 { 297 struct itewinsize wsz; 298 ipriv_t *cci; 299 view_t *view; 300 save_area_t *et_save; 301 302 if((cci = ip->priv) != NULL) 303 return; 304 305 ip->itexx_ioctl = iteet_ioctl; 306 307 #if defined(KFONT_8X8) 308 ip->font = font_info_8x8; 309 #else 310 ip->font = font_info_8x16; 311 #endif 312 313 /* Find the correct set of rendering routines for this font. */ 314 if(ip->font.width != 8) 315 panic("kernel font size not supported"); 316 317 if(!atari_realconfig) 318 ip->priv = cci = &con_ipriv; 319 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 320 if(cci == NULL) 321 panic("No memory for ite-view"); 322 bzero(cci, sizeof(*cci)); 323 324 wsz.x = ite_default_x; 325 wsz.y = ite_default_y; 326 wsz.width = ite_default_width; 327 wsz.height = ite_default_height; 328 wsz.depth = ite_default_depth; 329 330 ite_newsize (ip, &wsz); 331 332 view = viewview(ip->grf->g_viewdev); 333 cci->regkva = view->bitmap->regs; 334 335 /* 336 * Only console will be turned on by default.. 337 */ 338 if(ip->flags & ITE_ISCONS) 339 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 340 341 /* 342 * Activate text-mode settings 343 */ 344 et_save = (save_area_t *)view->save_area; 345 if (et_save == NULL) 346 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 347 else { 348 et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY); 349 et_save->fb_size = ip->cols * ip->rows; 350 } 351 } 352 353 static int 354 ite_newsize(ip, winsz) 355 struct ite_softc *ip; 356 struct itewinsize *winsz; 357 { 358 struct view_size vs; 359 int error = 0; 360 save_area_t *et_save; 361 view_t *view; 362 363 vs.x = winsz->x; 364 vs.y = winsz->y; 365 vs.width = winsz->width; 366 vs.height = winsz->height; 367 vs.depth = winsz->depth; 368 369 error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0, 370 NOPROC); 371 view = viewview(ip->grf->g_viewdev); 372 373 /* 374 * Reinitialize our structs 375 */ 376 ip->cols = view->display.width / ip->font.width; 377 ip->rows = view->display.height / ip->font.height; 378 379 /* 380 * save new values so that future opens use them 381 * this may not be correct when we implement Virtual Consoles 382 */ 383 ite_default_height = view->display.height; 384 ite_default_width = view->display.width; 385 ite_default_x = view->display.x; 386 ite_default_y = view->display.y; 387 ite_default_depth = view->bitmap->depth; 388 389 et_save = (save_area_t *)view->save_area; 390 if (et_save == NULL) 391 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 392 else { 393 et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY); 394 et_save->fb_size = ip->cols * ip->rows; 395 } 396 et_clear(ip, 0, 0, ip->rows, ip->cols); 397 398 return(error); 399 } 400 401 int 402 iteet_ioctl(ip, cmd, addr, flag, p) 403 struct ite_softc *ip; 404 u_long cmd; 405 caddr_t addr; 406 int flag; 407 struct proc *p; 408 { 409 struct winsize ws; 410 struct itewinsize *is; 411 int error = 0; 412 view_t *view = viewview(ip->grf->g_viewdev); 413 414 switch (cmd) { 415 case ITEIOCSWINSZ: 416 is = (struct itewinsize *)addr; 417 418 if(ite_newsize(ip, is)) 419 error = ENOMEM; 420 else { 421 view = viewview(ip->grf->g_viewdev); 422 ws.ws_row = ip->rows; 423 ws.ws_col = ip->cols; 424 ws.ws_xpixel = view->display.width; 425 ws.ws_ypixel = view->display.height; 426 ite_reset(ip); 427 /* 428 * XXX tell tty about the change 429 * XXX this is messy, but works 430 */ 431 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 432 } 433 break; 434 case VIOCSCMAP: 435 case VIOCGCMAP: 436 /* 437 * XXX watchout for that NOPROC. its not really the kernel 438 * XXX talking these two commands don't use the proc pointer 439 * XXX though. 440 */ 441 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC); 442 break; 443 default: 444 error = -1; 445 break; 446 } 447 return (error); 448 } 449 450 void 451 et_cursor(ip, flag) 452 struct ite_softc *ip; 453 int flag; 454 { 455 volatile u_char *ba; 456 view_t *v; 457 u_long cpos; 458 459 ba = ((ipriv_t*)ip->priv)->regkva; 460 v = viewview(ip->grf->g_viewdev); 461 462 /* 463 * Don't update the cursor when not on display 464 */ 465 if (!(v->flags & VF_DISPLAY)) 466 return; 467 468 switch (flag) { 469 case DRAW_CURSOR: 470 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 471 case MOVE_CURSOR: 472 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 473 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 474 cpos += ip->curx + ip->cury * ip->cols; 475 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 476 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 477 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 478 479 ip->cursorx = ip->curx; 480 ip->cursory = ip->cury; 481 break; 482 case ERASE_CURSOR: 483 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 484 case START_CURSOROPT: 485 case END_CURSOROPT: 486 default: 487 break; 488 } 489 } 490 491 void 492 et_putc(ip, c, dy, dx, mode) 493 struct ite_softc *ip; 494 int c; 495 int dy; 496 int dx; 497 int mode; 498 { 499 view_t *v = viewview(ip->grf->g_viewdev); 500 u_char attr; 501 u_short *cp; 502 503 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 504 if (mode & ATTR_UL) attr |= 0x01; 505 if (mode & ATTR_BOLD) attr |= 0x08; 506 if (mode & ATTR_BLINK) attr |= 0x80; 507 508 cp = (u_short*)v->bitmap->plane; 509 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 510 } 511 512 void 513 et_clear(ip, sy, sx, h, w) 514 struct ite_softc *ip; 515 int sy; 516 int sx; 517 int h; 518 int w; 519 { 520 /* cl_clear and cl_scroll both rely on ite passing arguments 521 * which describe continuous regions. For a VT200 terminal, 522 * this is safe behavior. 523 */ 524 view_t *v = viewview(ip->grf->g_viewdev); 525 u_short *dest; 526 int len; 527 528 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 529 for(len = w * h; len-- ;) 530 *dest++ = 0x2007; 531 } 532 533 void 534 et_scroll(ip, sy, sx, count, dir) 535 struct ite_softc *ip; 536 int sy; 537 int sx; 538 int count; 539 int dir; 540 { 541 view_t *v = viewview(ip->grf->g_viewdev); 542 u_short *fb; 543 u_short *src, *dst; 544 int len; 545 546 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 547 switch (dir) { 548 case SCROLL_UP: 549 src = fb; 550 dst = fb - count * ip->cols; 551 len = (ip->bottom_margin + 1 - sy) * ip->cols; 552 break; 553 case SCROLL_DOWN: 554 src = fb; 555 dst = fb + count * ip->cols; 556 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 557 break; 558 case SCROLL_RIGHT: 559 src = fb + sx; 560 dst = fb + sx + count; 561 len = ip->cols - sx + count; 562 break; 563 case SCROLL_LEFT: 564 src = fb + sx; 565 dst = fb + sx - count; 566 len = ip->cols - sx; 567 break; 568 default: 569 return; 570 } 571 if (src > dst) { 572 while (len--) 573 *dst++ = *src++; 574 } 575 else { 576 src = &src[len]; 577 dst = &dst[len]; 578 while (len--) 579 *--dst = *--src; 580 } 581 } 582 583 static void 584 et_inittextmode(ip, etregs, loadfont) 585 struct ite_softc *ip; 586 et_sv_reg_t *etregs; 587 int loadfont; 588 { 589 volatile u_char *ba; 590 font_info *fd; 591 u_char *fb; 592 u_char *c, *f, tmp; 593 u_short z, y; 594 int s; 595 view_t *v = viewview(ip->grf->g_viewdev); 596 et_sv_reg_t loc_regs; 597 598 if (etregs == NULL) { 599 etregs = &loc_regs; 600 et_hwsave(etregs); 601 } 602 603 ba = ((ipriv_t*)ip->priv)->regkva; 604 fb = v->bitmap->plane; 605 606 #if defined(KFONT_8X8) 607 fd = &font_info_8x8; 608 #else 609 fd = &font_info_8x16; 610 #endif 611 612 if (loadfont) { /* XXX: We should set the colormap */ 613 /* 614 * set colors (B&W) 615 */ 616 vgaw(ba, VDAC_ADDRESS_W, 0); 617 for (z = 0; z < 256; z++) { 618 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 619 620 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 621 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 622 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 623 } 624 625 /* 626 * Enter a suitable mode to download the font. This 627 * basically means sequential addressing mode 628 */ 629 s = splhigh(); 630 631 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 632 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 633 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 634 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 635 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 636 WGfx(ba, GCT_ID_MISC, 0x04); 637 splx(s); 638 639 /* 640 * load text font into beginning of display memory. Each 641 * character cell is 32 bytes long (enough for 4 planes) 642 */ 643 for (z = 0, c = fb; z < 256 * 32; z++) 644 *c++ = 0; 645 646 c = (unsigned char *) (fb) + (32 * fd->font_lo); 647 f = fd->font_p; 648 z = fd->font_lo; 649 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 650 for (y = 0; y < fd->height; y++) { 651 *c++ = *f++; 652 } 653 } 654 655 /* 656 * Odd/Even addressing 657 */ 658 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 659 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 660 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 661 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 662 etregs->grf[GCT_ID_MISC] = 0x06; 663 664 /* 665 * Font height + underline location 666 */ 667 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 668 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 669 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 670 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 671 672 /* 673 * Cursor setup 674 */ 675 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 676 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 677 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 678 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 679 680 /* 681 * Enter text mode 682 */ 683 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 684 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 685 686 #if 1 687 if (loadfont || (etregs == &loc_regs)) 688 #else 689 if (etregs == &loc_regs) 690 #endif 691 et_hwrest(etregs); 692 } 693
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