ite_et.c revision 1.12.4.1
1 /* $NetBSD: ite_et.c,v 1.12.4.1 2002/05/19 07:56:39 gehenna 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 extern const struct cdevsw view_cdevsw; 117 118 if (card_probed <= 0) { 119 if (card_probed == 0) /* Probed but failed */ 120 return 0; 121 card_probed = 0; 122 123 /* 124 * Check if the layers we depend on exist 125 */ 126 if(!(machineid & ATARI_HADES)) 127 return 0; 128 if (!et_probe_card()) 129 return 0; 130 if (grfabs_probe(&et_probe_video) == 0) 131 return 0; 132 viewprobe(); 133 card_probed = 1; /* Probed and found */ 134 } 135 136 if (atari_realconfig == 0) { 137 /* 138 * Early console init. Only match first unit. 139 */ 140 if (did_consinit) 141 return 0; 142 if ((*view_cdevsw.d_open)(cfp->cf_unit, 0, 0, NULL)) 143 return 0; 144 cfdata_grf = cfp; 145 did_consinit = 1; 146 return 1; 147 } 148 149 /* 150 * Normal config. When we are called directly from the grfbus, 151 * we only match the first unit. The attach function will call us for 152 * the other configured units. 153 */ 154 if (grf_auxp->from_bus_match 155 && ((did_consinit > 1) || !et_probe_card())) 156 return 0; 157 158 if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit)) 159 return 0; 160 161 /* 162 * Final constraint: each grf needs a view.... 163 */ 164 if((cfdata_grf == NULL) || (did_consinit > 1)) { 165 if((*view_cdevsw.d_open)(cfp->cf_unit, 0, 0, NULL)) 166 return 0; 167 } 168 did_consinit = 2; 169 return 1; 170 } 171 172 /* 173 * attach: initialize the grf-structure and try to attach an ite to us. 174 * note : dp is NULL during early console init. 175 */ 176 void 177 grfetattach(pdp, dp, auxp) 178 struct device *pdp, *dp; 179 void *auxp; 180 { 181 static struct grf_softc congrf; 182 static int first_attach = 1; 183 grf_auxp_t *grf_bus_auxp = auxp; 184 grf_auxp_t grf_auxp; 185 struct grf_softc *gp; 186 int maj; 187 extern const struct cdevsw grf_cdevsw; 188 189 /* 190 * find our major device number 191 */ 192 maj = cdevsw_lookup_major(&grf_cdevsw); 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 extern const struct cdevsw view_cdevsw; 361 362 vs.x = winsz->x; 363 vs.y = winsz->y; 364 vs.width = winsz->width; 365 vs.height = winsz->height; 366 vs.depth = winsz->depth; 367 368 error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, VIOCSSIZE, 369 (caddr_t)&vs, 0, NOPROC); 370 view = viewview(ip->grf->g_viewdev); 371 372 /* 373 * Reinitialize our structs 374 */ 375 ip->cols = view->display.width / ip->font.width; 376 ip->rows = view->display.height / ip->font.height; 377 378 /* 379 * save new values so that future opens use them 380 * this may not be correct when we implement Virtual Consoles 381 */ 382 ite_default_height = view->display.height; 383 ite_default_width = view->display.width; 384 ite_default_x = view->display.x; 385 ite_default_y = view->display.y; 386 ite_default_depth = view->bitmap->depth; 387 388 et_save = (save_area_t *)view->save_area; 389 if (et_save == NULL) 390 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 391 else { 392 et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY); 393 et_save->fb_size = ip->cols * ip->rows; 394 } 395 et_clear(ip, 0, 0, ip->rows, ip->cols); 396 397 return(error); 398 } 399 400 int 401 iteet_ioctl(ip, cmd, addr, flag, p) 402 struct ite_softc *ip; 403 u_long cmd; 404 caddr_t addr; 405 int flag; 406 struct proc *p; 407 { 408 struct winsize ws; 409 struct itewinsize *is; 410 int error = 0; 411 view_t *view = viewview(ip->grf->g_viewdev); 412 extern const struct cdevsw ite_cdevsw; 413 extern const struct cdevsw view_cdevsw; 414 415 switch (cmd) { 416 case ITEIOCSWINSZ: 417 is = (struct itewinsize *)addr; 418 419 if(ite_newsize(ip, is)) 420 error = ENOMEM; 421 else { 422 view = viewview(ip->grf->g_viewdev); 423 ws.ws_row = ip->rows; 424 ws.ws_col = ip->cols; 425 ws.ws_xpixel = view->display.width; 426 ws.ws_ypixel = view->display.height; 427 ite_reset(ip); 428 /* 429 * XXX tell tty about the change 430 * XXX this is messy, but works 431 */ 432 (*ite_cdevsw.d_ioctl)(ip->grf->g_itedev, TIOCSWINSZ, 433 (caddr_t)&ws, 0, p); 434 } 435 break; 436 case VIOCSCMAP: 437 case VIOCGCMAP: 438 /* 439 * XXX watchout for that NOPROC. its not really the kernel 440 * XXX talking these two commands don't use the proc pointer 441 * XXX though. 442 */ 443 error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, cmd, addr, 444 flag, NOPROC); 445 break; 446 default: 447 error = EPASSTHROUGH; 448 break; 449 } 450 return (error); 451 } 452 453 void 454 et_cursor(ip, flag) 455 struct ite_softc *ip; 456 int flag; 457 { 458 volatile u_char *ba; 459 view_t *v; 460 u_long cpos; 461 462 ba = ((ipriv_t*)ip->priv)->regkva; 463 v = viewview(ip->grf->g_viewdev); 464 465 /* 466 * Don't update the cursor when not on display 467 */ 468 if (!(v->flags & VF_DISPLAY)) 469 return; 470 471 switch (flag) { 472 case DRAW_CURSOR: 473 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 474 case MOVE_CURSOR: 475 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 476 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 477 cpos += ip->curx + ip->cury * ip->cols; 478 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 479 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 480 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 481 482 ip->cursorx = ip->curx; 483 ip->cursory = ip->cury; 484 break; 485 case ERASE_CURSOR: 486 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 487 case START_CURSOROPT: 488 case END_CURSOROPT: 489 default: 490 break; 491 } 492 } 493 494 void 495 et_putc(ip, c, dy, dx, mode) 496 struct ite_softc *ip; 497 int c; 498 int dy; 499 int dx; 500 int mode; 501 { 502 view_t *v = viewview(ip->grf->g_viewdev); 503 u_char attr; 504 u_short *cp; 505 506 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 507 if (mode & ATTR_UL) attr |= 0x01; 508 if (mode & ATTR_BOLD) attr |= 0x08; 509 if (mode & ATTR_BLINK) attr |= 0x80; 510 511 cp = (u_short*)v->bitmap->plane; 512 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 513 } 514 515 void 516 et_clear(ip, sy, sx, h, w) 517 struct ite_softc *ip; 518 int sy; 519 int sx; 520 int h; 521 int w; 522 { 523 /* et_clear and et_scroll both rely on ite passing arguments 524 * which describe continuous regions. For a VT200 terminal, 525 * this is safe behavior. 526 */ 527 view_t *v = viewview(ip->grf->g_viewdev); 528 u_short *dest; 529 int len; 530 531 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 532 for(len = w * h; len-- ;) 533 *dest++ = 0x2007; 534 } 535 536 void 537 et_scroll(ip, sy, sx, count, dir) 538 struct ite_softc *ip; 539 int sy; 540 int sx; 541 int count; 542 int dir; 543 { 544 view_t *v = viewview(ip->grf->g_viewdev); 545 u_short *fb; 546 u_short *src, *dst; 547 int len; 548 549 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 550 switch (dir) { 551 case SCROLL_UP: 552 src = fb; 553 dst = fb - count * ip->cols; 554 len = (ip->bottom_margin + 1 - sy) * ip->cols; 555 break; 556 case SCROLL_DOWN: 557 src = fb; 558 dst = fb + count * ip->cols; 559 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 560 break; 561 case SCROLL_RIGHT: 562 src = fb + sx; 563 dst = fb + sx + count; 564 len = ip->cols - sx + count; 565 break; 566 case SCROLL_LEFT: 567 src = fb + sx; 568 dst = fb + sx - count; 569 len = ip->cols - sx; 570 break; 571 default: 572 return; 573 } 574 if (src > dst) { 575 while (len--) 576 *dst++ = *src++; 577 } 578 else { 579 src = &src[len]; 580 dst = &dst[len]; 581 while (len--) 582 *--dst = *--src; 583 } 584 } 585 586 static void 587 et_inittextmode(ip, etregs, loadfont) 588 struct ite_softc *ip; 589 et_sv_reg_t *etregs; 590 int loadfont; 591 { 592 volatile u_char *ba; 593 font_info *fd; 594 u_char *fb; 595 u_char *c, *f, tmp; 596 u_short z, y; 597 int s; 598 view_t *v = viewview(ip->grf->g_viewdev); 599 et_sv_reg_t loc_regs; 600 601 if (etregs == NULL) { 602 etregs = &loc_regs; 603 et_hwsave(etregs); 604 } 605 606 ba = ((ipriv_t*)ip->priv)->regkva; 607 fb = v->bitmap->plane; 608 609 #if defined(KFONT_8X8) 610 fd = &font_info_8x8; 611 #else 612 fd = &font_info_8x16; 613 #endif 614 615 if (loadfont) { /* XXX: We should set the colormap */ 616 /* 617 * set colors (B&W) 618 */ 619 vgaw(ba, VDAC_ADDRESS_W, 0); 620 for (z = 0; z < 256; z++) { 621 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 622 623 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 624 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 625 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 626 } 627 628 /* 629 * Enter a suitable mode to download the font. This 630 * basically means sequential addressing mode 631 */ 632 s = splhigh(); 633 634 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 635 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 636 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 637 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 638 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 639 WGfx(ba, GCT_ID_MISC, 0x04); 640 splx(s); 641 642 /* 643 * load text font into beginning of display memory. Each 644 * character cell is 32 bytes long (enough for 4 planes) 645 */ 646 for (z = 0, c = fb; z < 256 * 32; z++) 647 *c++ = 0; 648 649 c = (unsigned char *) (fb) + (32 * fd->font_lo); 650 f = fd->font_p; 651 z = fd->font_lo; 652 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 653 for (y = 0; y < fd->height; y++) { 654 *c++ = *f++; 655 } 656 } 657 658 /* 659 * Odd/Even addressing 660 */ 661 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 662 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 663 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 664 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 665 etregs->grf[GCT_ID_MISC] = 0x06; 666 667 /* 668 * Font height + underline location 669 */ 670 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 671 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 672 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 673 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 674 675 /* 676 * Cursor setup 677 */ 678 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 679 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 680 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 681 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 682 683 /* 684 * Enter text mode 685 */ 686 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 687 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 688 689 #if 1 690 if (loadfont || (etregs == &loc_regs)) 691 #else 692 if (etregs == &loc_regs) 693 #endif 694 et_hwrest(etregs); 695 } 696
Indexes created Mon Sep 29 03:10:08 GMT 2025