ite_et.c revision 1.10
1 /* $NetBSD: ite_et.c,v 1.10 2000/03/29 14:19:23 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 /* 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 grf_auxp_t *grf_bus_auxp = auxp; 182 grf_auxp_t grf_auxp; 183 struct grf_softc *gp; 184 int maj; 185 186 /* 187 * find our major device number 188 */ 189 for(maj = 0; maj < nchrdev; maj++) 190 if (cdevsw[maj].d_open == grfopen) 191 break; 192 193 /* 194 * Handle exeption case: early console init 195 */ 196 if(dp == NULL) { 197 congrf.g_unit = 0; 198 congrf.g_grfdev = makedev(maj, 0); 199 congrf.g_itedev = (dev_t)-1; 200 congrf.g_flags = GF_ALIVE; 201 congrf.g_mode = grf_mode; 202 congrf.g_conpri = CN_INTERNAL; 203 congrf.g_viewdev = congrf.g_unit; 204 grfet_iteinit(&congrf); 205 grf_viewsync(&congrf); 206 207 /* Attach console ite */ 208 atari_config_found(cfdata_grf, NULL, &congrf, grfetprint); 209 return; 210 } 211 212 gp = (struct grf_softc *)dp; 213 gp->g_unit = gp->g_device.dv_unit; 214 grfsp[gp->g_unit] = gp; 215 216 if((cfdata_grf != NULL) && (gp->g_unit == 0)) { 217 /* 218 * We inited earlier just copy the info, take care 219 * not to copy the device struct though. 220 */ 221 bcopy(&congrf.g_display, &gp->g_display, 222 (char *)&gp[1] - (char *)&gp->g_display); 223 } 224 else { 225 gp->g_grfdev = makedev(maj, gp->g_unit); 226 gp->g_itedev = (dev_t)-1; 227 gp->g_flags = GF_ALIVE; 228 gp->g_mode = grf_mode; 229 gp->g_conpri = 0; 230 gp->g_viewdev = gp->g_unit; 231 grfet_iteinit(gp); 232 grf_viewsync(gp); 233 } 234 235 printf(": %dx%d", gp->g_display.gd_dwidth, gp->g_display.gd_dheight); 236 if(gp->g_display.gd_colors == 2) 237 printf(" monochrome\n"); 238 else printf(" colors %d\n", gp->g_display.gd_colors); 239 240 /* 241 * try and attach an ite 242 */ 243 config_found(dp, gp, grfetprint); 244 245 /* 246 * If attaching unit 0, go ahead and 'find' the rest of us 247 */ 248 if (gp->g_unit == 0) { 249 grf_auxp.from_bus_match = 0; 250 for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) { 251 config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint); 252 } 253 } 254 } 255 256 int 257 grfetprint(auxp, pnp) 258 void *auxp; 259 const char *pnp; 260 { 261 if(pnp) /* XXX */ 262 printf("ite at %s", pnp); 263 return(UNCONF); 264 } 265 266 /* 267 * Init ite portion of grf_softc struct 268 */ 269 static void 270 grfet_iteinit(gp) 271 struct grf_softc *gp; 272 { 273 274 gp->g_itecursor = et_cursor; 275 gp->g_iteputc = et_putc; 276 gp->g_iteclear = et_clear; 277 gp->g_itescroll = et_scroll; 278 gp->g_iteinit = view_init; 279 gp->g_itedeinit = view_deinit; 280 } 281 282 static void 283 view_deinit(ip) 284 struct ite_softc *ip; 285 { 286 ip->flags &= ~ITE_INITED; 287 } 288 289 static void 290 view_init(ip) 291 register struct ite_softc *ip; 292 { 293 struct itewinsize wsz; 294 ipriv_t *cci; 295 view_t *view; 296 save_area_t *et_save; 297 298 if((cci = ip->priv) != NULL) 299 return; 300 301 ip->itexx_ioctl = iteet_ioctl; 302 303 #if defined(KFONT_8X8) 304 ip->font = font_info_8x8; 305 #else 306 ip->font = font_info_8x16; 307 #endif 308 309 /* Find the correct set of rendering routines for this font. */ 310 if(ip->font.width != 8) 311 panic("kernel font size not supported"); 312 313 if(!atari_realconfig) 314 ip->priv = cci = &con_ipriv; 315 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 316 if(cci == NULL) 317 panic("No memory for ite-view"); 318 bzero(cci, sizeof(*cci)); 319 320 wsz.x = ite_default_x; 321 wsz.y = ite_default_y; 322 wsz.width = ite_default_width; 323 wsz.height = ite_default_height; 324 wsz.depth = ite_default_depth; 325 326 ite_newsize (ip, &wsz); 327 328 view = viewview(ip->grf->g_viewdev); 329 cci->regkva = view->bitmap->regs; 330 331 /* 332 * Only console will be turned on by default.. 333 */ 334 if(ip->flags & ITE_ISCONS) 335 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 336 337 /* 338 * Activate text-mode settings 339 */ 340 et_save = (save_area_t *)view->save_area; 341 if (et_save == NULL) 342 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 343 else { 344 et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY); 345 et_save->fb_size = ip->cols * ip->rows; 346 } 347 } 348 349 static int 350 ite_newsize(ip, winsz) 351 struct ite_softc *ip; 352 struct itewinsize *winsz; 353 { 354 struct view_size vs; 355 int error = 0; 356 save_area_t *et_save; 357 view_t *view; 358 359 vs.x = winsz->x; 360 vs.y = winsz->y; 361 vs.width = winsz->width; 362 vs.height = winsz->height; 363 vs.depth = winsz->depth; 364 365 error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0, 366 NOPROC); 367 view = viewview(ip->grf->g_viewdev); 368 369 /* 370 * Reinitialize our structs 371 */ 372 ip->cols = view->display.width / ip->font.width; 373 ip->rows = view->display.height / ip->font.height; 374 375 /* 376 * save new values so that future opens use them 377 * this may not be correct when we implement Virtual Consoles 378 */ 379 ite_default_height = view->display.height; 380 ite_default_width = view->display.width; 381 ite_default_x = view->display.x; 382 ite_default_y = view->display.y; 383 ite_default_depth = view->bitmap->depth; 384 385 et_save = (save_area_t *)view->save_area; 386 if (et_save == NULL) 387 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 388 else { 389 et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY); 390 et_save->fb_size = ip->cols * ip->rows; 391 } 392 et_clear(ip, 0, 0, ip->rows, ip->cols); 393 394 return(error); 395 } 396 397 int 398 iteet_ioctl(ip, cmd, addr, flag, p) 399 struct ite_softc *ip; 400 u_long cmd; 401 caddr_t addr; 402 int flag; 403 struct proc *p; 404 { 405 struct winsize ws; 406 struct itewinsize *is; 407 int error = 0; 408 view_t *view = viewview(ip->grf->g_viewdev); 409 410 switch (cmd) { 411 case ITEIOCSWINSZ: 412 is = (struct itewinsize *)addr; 413 414 if(ite_newsize(ip, is)) 415 error = ENOMEM; 416 else { 417 view = viewview(ip->grf->g_viewdev); 418 ws.ws_row = ip->rows; 419 ws.ws_col = ip->cols; 420 ws.ws_xpixel = view->display.width; 421 ws.ws_ypixel = view->display.height; 422 ite_reset(ip); 423 /* 424 * XXX tell tty about the change 425 * XXX this is messy, but works 426 */ 427 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 428 } 429 break; 430 case VIOCSCMAP: 431 case VIOCGCMAP: 432 /* 433 * XXX watchout for that NOPROC. its not really the kernel 434 * XXX talking these two commands don't use the proc pointer 435 * XXX though. 436 */ 437 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC); 438 break; 439 default: 440 error = -1; 441 break; 442 } 443 return (error); 444 } 445 446 void 447 et_cursor(ip, flag) 448 struct ite_softc *ip; 449 int flag; 450 { 451 volatile u_char *ba; 452 view_t *v; 453 u_long cpos; 454 455 ba = ((ipriv_t*)ip->priv)->regkva; 456 v = viewview(ip->grf->g_viewdev); 457 458 /* 459 * Don't update the cursor when not on display 460 */ 461 if (!(v->flags & VF_DISPLAY)) 462 return; 463 464 switch (flag) { 465 case DRAW_CURSOR: 466 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 467 case MOVE_CURSOR: 468 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 469 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 470 cpos += ip->curx + ip->cury * ip->cols; 471 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 472 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 473 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 474 475 ip->cursorx = ip->curx; 476 ip->cursory = ip->cury; 477 break; 478 case ERASE_CURSOR: 479 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 480 case START_CURSOROPT: 481 case END_CURSOROPT: 482 default: 483 break; 484 } 485 } 486 487 void 488 et_putc(ip, c, dy, dx, mode) 489 struct ite_softc *ip; 490 int c; 491 int dy; 492 int dx; 493 int mode; 494 { 495 view_t *v = viewview(ip->grf->g_viewdev); 496 u_char attr; 497 u_short *cp; 498 499 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 500 if (mode & ATTR_UL) attr |= 0x01; 501 if (mode & ATTR_BOLD) attr |= 0x08; 502 if (mode & ATTR_BLINK) attr |= 0x80; 503 504 cp = (u_short*)v->bitmap->plane; 505 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 506 } 507 508 void 509 et_clear(ip, sy, sx, h, w) 510 struct ite_softc *ip; 511 int sy; 512 int sx; 513 int h; 514 int w; 515 { 516 /* et_clear and et_scroll both rely on ite passing arguments 517 * which describe continuous regions. For a VT200 terminal, 518 * this is safe behavior. 519 */ 520 view_t *v = viewview(ip->grf->g_viewdev); 521 u_short *dest; 522 int len; 523 524 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 525 for(len = w * h; len-- ;) 526 *dest++ = 0x2007; 527 } 528 529 void 530 et_scroll(ip, sy, sx, count, dir) 531 struct ite_softc *ip; 532 int sy; 533 int sx; 534 int count; 535 int dir; 536 { 537 view_t *v = viewview(ip->grf->g_viewdev); 538 u_short *fb; 539 u_short *src, *dst; 540 int len; 541 542 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 543 switch (dir) { 544 case SCROLL_UP: 545 src = fb; 546 dst = fb - count * ip->cols; 547 len = (ip->bottom_margin + 1 - sy) * ip->cols; 548 break; 549 case SCROLL_DOWN: 550 src = fb; 551 dst = fb + count * ip->cols; 552 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 553 break; 554 case SCROLL_RIGHT: 555 src = fb + sx; 556 dst = fb + sx + count; 557 len = ip->cols - sx + count; 558 break; 559 case SCROLL_LEFT: 560 src = fb + sx; 561 dst = fb + sx - count; 562 len = ip->cols - sx; 563 break; 564 default: 565 return; 566 } 567 if (src > dst) { 568 while (len--) 569 *dst++ = *src++; 570 } 571 else { 572 src = &src[len]; 573 dst = &dst[len]; 574 while (len--) 575 *--dst = *--src; 576 } 577 } 578 579 static void 580 et_inittextmode(ip, etregs, loadfont) 581 struct ite_softc *ip; 582 et_sv_reg_t *etregs; 583 int loadfont; 584 { 585 volatile u_char *ba; 586 font_info *fd; 587 u_char *fb; 588 u_char *c, *f, tmp; 589 u_short z, y; 590 int s; 591 view_t *v = viewview(ip->grf->g_viewdev); 592 et_sv_reg_t loc_regs; 593 594 if (etregs == NULL) { 595 etregs = &loc_regs; 596 et_hwsave(etregs); 597 } 598 599 ba = ((ipriv_t*)ip->priv)->regkva; 600 fb = v->bitmap->plane; 601 602 #if defined(KFONT_8X8) 603 fd = &font_info_8x8; 604 #else 605 fd = &font_info_8x16; 606 #endif 607 608 if (loadfont) { /* XXX: We should set the colormap */ 609 /* 610 * set colors (B&W) 611 */ 612 vgaw(ba, VDAC_ADDRESS_W, 0); 613 for (z = 0; z < 256; z++) { 614 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 615 616 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 617 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 618 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 619 } 620 621 /* 622 * Enter a suitable mode to download the font. This 623 * basically means sequential addressing mode 624 */ 625 s = splhigh(); 626 627 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 628 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 629 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 630 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 631 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 632 WGfx(ba, GCT_ID_MISC, 0x04); 633 splx(s); 634 635 /* 636 * load text font into beginning of display memory. Each 637 * character cell is 32 bytes long (enough for 4 planes) 638 */ 639 for (z = 0, c = fb; z < 256 * 32; z++) 640 *c++ = 0; 641 642 c = (unsigned char *) (fb) + (32 * fd->font_lo); 643 f = fd->font_p; 644 z = fd->font_lo; 645 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 646 for (y = 0; y < fd->height; y++) { 647 *c++ = *f++; 648 } 649 } 650 651 /* 652 * Odd/Even addressing 653 */ 654 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 655 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 656 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 657 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 658 etregs->grf[GCT_ID_MISC] = 0x06; 659 660 /* 661 * Font height + underline location 662 */ 663 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 664 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 665 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 666 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 667 668 /* 669 * Cursor setup 670 */ 671 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 672 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 673 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 674 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 675 676 /* 677 * Enter text mode 678 */ 679 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 680 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 681 682 #if 1 683 if (loadfont || (etregs == &loc_regs)) 684 #else 685 if (etregs == &loc_regs) 686 #endif 687 et_hwrest(etregs); 688 } 689
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