ite_et.c revision 1.22
1 /* $NetBSD: ite_et.c,v 1.22 2009/03/14 15:36:03 dsl 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 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: ite_et.c,v 1.22 2009/03/14 15:36:03 dsl Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/conf.h> 39 #include <sys/ioctl.h> 40 #include <sys/malloc.h> 41 #include <sys/device.h> 42 #include <dev/cons.h> 43 44 #include <machine/cpu.h> 45 46 #include <atari/atari/device.h> 47 48 #include <atari/dev/itevar.h> 49 #include <atari/dev/iteioctl.h> 50 #include <atari/dev/grfioctl.h> 51 #include <atari/dev/grf_etreg.h> 52 #include <atari/dev/grfabs_reg.h> 53 #include <atari/dev/grfabs_et.h> 54 #include <atari/dev/grfvar.h> 55 #include <atari/dev/font.h> 56 #include <atari/dev/viewioctl.h> 57 #include <atari/dev/viewvar.h> 58 59 #include "grfet.h" 60 61 /* 62 * This is what ip->priv points to; 63 * it contains local variables for custom-chip ites. 64 */ 65 struct ite_priv { 66 volatile u_char *regkva; 67 }; 68 69 typedef struct ite_priv ipriv_t; 70 71 static ipriv_t con_ipriv; 72 73 /* Console colors */ 74 static u_char etconscolors[3][3] = { /* background, foreground, hilite */ 75 {0x0, 0x0, 0x0}, {0x30, 0x30, 0x30}, { 0x3f, 0x3f, 0x3f} 76 }; 77 78 /* XXX: Shouldn't these be in font.h???? */ 79 extern font_info font_info_8x8; 80 extern font_info font_info_8x16; 81 82 static void grfet_iteinit(struct grf_softc *); 83 static void view_init(struct ite_softc *); 84 static void view_deinit(struct ite_softc *); 85 static int iteet_ioctl(struct ite_softc *, u_long, void *, int, 86 struct lwp *); 87 static int ite_newsize(struct ite_softc *, struct itewinsize *); 88 static void et_inittextmode(struct ite_softc *, et_sv_reg_t *, int); 89 void et_cursor(struct ite_softc *ip, int flag); 90 void et_clear(struct ite_softc *ip, int sy, int sx, int h, int w); 91 void et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode); 92 void et_scroll(struct ite_softc *ip, int sy, int sx, int count, 93 int dir); 94 95 /* 96 * grfet config stuff 97 */ 98 void grfetattach(struct device *, struct device *, void *); 99 int grfetmatch(struct device *, struct cfdata *, void *); 100 int grfetprint(void *, const char *); 101 102 CFATTACH_DECL(grfet, sizeof(struct grf_softc), 103 grfetmatch, grfetattach, NULL, NULL); 104 105 /* 106 * only used in console init. 107 */ 108 static struct cfdata *cfdata_grf = NULL; 109 110 int 111 grfetmatch(struct device *pdp, struct cfdata *cfp, 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 = device_unit(&gp->g_device); 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(void *auxp, const char *pnp) 260 { 261 if(pnp) /* XXX */ 262 aprint_normal("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(struct grf_softc *gp) 271 { 272 273 gp->g_itecursor = et_cursor; 274 gp->g_iteputc = et_putc; 275 gp->g_iteclear = et_clear; 276 gp->g_itescroll = et_scroll; 277 gp->g_iteinit = view_init; 278 gp->g_itedeinit = view_deinit; 279 } 280 281 static void 282 view_deinit(struct ite_softc *ip) 283 { 284 ip->flags &= ~ITE_INITED; 285 } 286 287 static void 288 view_init(register struct ite_softc *ip) 289 { 290 struct itewinsize wsz; 291 ipriv_t *cci; 292 view_t *view; 293 save_area_t *et_save; 294 295 if((cci = ip->priv) != NULL) 296 return; 297 298 ip->itexx_ioctl = iteet_ioctl; 299 300 #if defined(KFONT_8X8) 301 ip->font = font_info_8x8; 302 #else 303 ip->font = font_info_8x16; 304 #endif 305 306 /* Find the correct set of rendering routines for this font. */ 307 if(ip->font.width != 8) 308 panic("kernel font size not supported"); 309 310 if(!atari_realconfig) 311 ip->priv = cci = &con_ipriv; 312 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 313 if(cci == NULL) 314 panic("No memory for ite-view"); 315 bzero(cci, sizeof(*cci)); 316 317 wsz.x = ite_default_x; 318 wsz.y = ite_default_y; 319 wsz.width = ite_default_width; 320 wsz.height = ite_default_height; 321 wsz.depth = ite_default_depth; 322 323 ite_newsize (ip, &wsz); 324 325 view = viewview(ip->grf->g_viewdev); 326 cci->regkva = view->bitmap->regs; 327 328 /* 329 * Only console will be turned on by default.. 330 */ 331 if(ip->flags & ITE_ISCONS) 332 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 333 334 /* 335 * Activate text-mode settings 336 */ 337 et_save = (save_area_t *)view->save_area; 338 if (et_save == NULL) 339 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 340 else { 341 et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY); 342 et_save->fb_size = ip->cols * ip->rows; 343 } 344 } 345 346 static int 347 ite_newsize(struct ite_softc *ip, struct itewinsize *winsz) 348 { 349 struct view_size vs; 350 int error = 0; 351 save_area_t *et_save; 352 view_t *view; 353 extern const struct cdevsw view_cdevsw; 354 355 vs.x = winsz->x; 356 vs.y = winsz->y; 357 vs.width = winsz->width; 358 vs.height = winsz->height; 359 vs.depth = winsz->depth; 360 361 error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, VIOCSSIZE, 362 (void *)&vs, 0, NOLWP); 363 view = viewview(ip->grf->g_viewdev); 364 365 /* 366 * Reinitialize our structs 367 */ 368 ip->cols = view->display.width / ip->font.width; 369 ip->rows = view->display.height / ip->font.height; 370 371 /* 372 * save new values so that future opens use them 373 * this may not be correct when we implement Virtual Consoles 374 */ 375 ite_default_height = view->display.height; 376 ite_default_width = view->display.width; 377 ite_default_x = view->display.x; 378 ite_default_y = view->display.y; 379 ite_default_depth = view->bitmap->depth; 380 381 et_save = (save_area_t *)view->save_area; 382 if (et_save == NULL) 383 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 384 else { 385 et_inittextmode(ip, &et_save->sv_regs, view->flags & VF_DISPLAY); 386 et_save->fb_size = ip->cols * ip->rows; 387 } 388 et_clear(ip, 0, 0, ip->rows, ip->cols); 389 390 return(error); 391 } 392 393 int 394 iteet_ioctl(struct ite_softc *ip, u_long cmd, void * addr, int flag, struct lwp *l) 395 { 396 struct winsize ws; 397 struct itewinsize *is; 398 int error = 0; 399 view_t *view = viewview(ip->grf->g_viewdev); 400 extern const struct cdevsw ite_cdevsw; 401 extern const struct cdevsw view_cdevsw; 402 403 switch (cmd) { 404 case ITEIOCSWINSZ: 405 is = (struct itewinsize *)addr; 406 407 if(ite_newsize(ip, is)) 408 error = ENOMEM; 409 else { 410 view = viewview(ip->grf->g_viewdev); 411 ws.ws_row = ip->rows; 412 ws.ws_col = ip->cols; 413 ws.ws_xpixel = view->display.width; 414 ws.ws_ypixel = view->display.height; 415 ite_reset(ip); 416 /* 417 * XXX tell tty about the change 418 * XXX this is messy, but works 419 */ 420 (*ite_cdevsw.d_ioctl)(ip->grf->g_itedev, TIOCSWINSZ, 421 (void *)&ws, 0, l); 422 } 423 break; 424 case VIOCSCMAP: 425 case VIOCGCMAP: 426 /* 427 * XXX watchout for that NOLWP. its not really the kernel 428 * XXX talking these two commands don't use the proc pointer 429 * XXX though. 430 */ 431 error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, cmd, addr, 432 flag, NOLWP); 433 break; 434 default: 435 error = EPASSTHROUGH; 436 break; 437 } 438 return (error); 439 } 440 441 void 442 et_cursor(struct ite_softc *ip, int flag) 443 { 444 volatile u_char *ba; 445 view_t *v; 446 u_long cpos; 447 448 ba = ((ipriv_t*)ip->priv)->regkva; 449 v = viewview(ip->grf->g_viewdev); 450 451 /* 452 * Don't update the cursor when not on display 453 */ 454 if (!(v->flags & VF_DISPLAY)) 455 return; 456 457 switch (flag) { 458 case DRAW_CURSOR: 459 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 460 case MOVE_CURSOR: 461 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 462 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 463 cpos += ip->curx + ip->cury * ip->cols; 464 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 465 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 466 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 467 468 ip->cursorx = ip->curx; 469 ip->cursory = ip->cury; 470 break; 471 case ERASE_CURSOR: 472 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 473 case START_CURSOROPT: 474 case END_CURSOROPT: 475 default: 476 break; 477 } 478 } 479 480 void 481 et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode) 482 { 483 view_t *v = viewview(ip->grf->g_viewdev); 484 u_char attr; 485 u_short *cp; 486 487 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 488 if (mode & ATTR_UL) attr |= 0x01; 489 if (mode & ATTR_BOLD) attr |= 0x08; 490 if (mode & ATTR_BLINK) attr |= 0x80; 491 492 cp = (u_short*)v->bitmap->plane; 493 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 494 } 495 496 void 497 et_clear(struct ite_softc *ip, int sy, int sx, int h, int w) 498 { 499 /* et_clear and et_scroll both rely on ite passing arguments 500 * which describe continuous regions. For a VT200 terminal, 501 * this is safe behavior. 502 */ 503 view_t *v = viewview(ip->grf->g_viewdev); 504 u_short *dest; 505 int len; 506 507 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 508 for(len = w * h; len-- ;) 509 *dest++ = 0x2007; 510 } 511 512 void 513 et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir) 514 { 515 view_t *v = viewview(ip->grf->g_viewdev); 516 u_short *fb; 517 u_short *src, *dst; 518 int len; 519 520 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 521 switch (dir) { 522 case SCROLL_UP: 523 src = fb; 524 dst = fb - count * ip->cols; 525 len = (ip->bottom_margin + 1 - sy) * ip->cols; 526 break; 527 case SCROLL_DOWN: 528 src = fb; 529 dst = fb + count * ip->cols; 530 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 531 break; 532 case SCROLL_RIGHT: 533 src = fb + sx; 534 dst = fb + sx + count; 535 len = ip->cols - sx + count; 536 break; 537 case SCROLL_LEFT: 538 src = fb + sx; 539 dst = fb + sx - count; 540 len = ip->cols - sx; 541 break; 542 default: 543 return; 544 } 545 if (src > dst) { 546 while (len--) 547 *dst++ = *src++; 548 } 549 else { 550 src = &src[len]; 551 dst = &dst[len]; 552 while (len--) 553 *--dst = *--src; 554 } 555 } 556 557 static void 558 et_inittextmode(struct ite_softc *ip, et_sv_reg_t *etregs, int loadfont) 559 { 560 volatile u_char *ba; 561 font_info *fd; 562 u_char *fb; 563 u_char *c, *f, tmp; 564 u_short z, y; 565 int s; 566 view_t *v = viewview(ip->grf->g_viewdev); 567 et_sv_reg_t loc_regs; 568 569 if (etregs == NULL) { 570 etregs = &loc_regs; 571 et_hwsave(etregs); 572 } 573 574 ba = ((ipriv_t*)ip->priv)->regkva; 575 fb = v->bitmap->plane; 576 577 #if defined(KFONT_8X8) 578 fd = &font_info_8x8; 579 #else 580 fd = &font_info_8x16; 581 #endif 582 583 if (loadfont) { /* XXX: We should set the colormap */ 584 /* 585 * set colors (B&W) 586 */ 587 vgaw(ba, VDAC_ADDRESS_W, 0); 588 for (z = 0; z < 256; z++) { 589 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 590 591 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 592 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 593 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 594 } 595 596 /* 597 * Enter a suitable mode to download the font. This 598 * basically means sequential addressing mode 599 */ 600 s = splhigh(); 601 602 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 603 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 604 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 605 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 606 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 607 WGfx(ba, GCT_ID_MISC, 0x04); 608 splx(s); 609 610 /* 611 * load text font into beginning of display memory. Each 612 * character cell is 32 bytes long (enough for 4 planes) 613 */ 614 for (z = 0, c = fb; z < 256 * 32; z++) 615 *c++ = 0; 616 617 c = (unsigned char *) (fb) + (32 * fd->font_lo); 618 f = fd->font_p; 619 z = fd->font_lo; 620 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 621 for (y = 0; y < fd->height; y++) { 622 *c++ = *f++; 623 } 624 } 625 626 /* 627 * Odd/Even addressing 628 */ 629 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 630 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 631 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 632 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 633 etregs->grf[GCT_ID_MISC] = 0x06; 634 635 /* 636 * Font height + underline location 637 */ 638 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 639 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 640 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 641 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 642 643 /* 644 * Cursor setup 645 */ 646 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 647 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 648 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 649 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 650 651 /* 652 * Enter text mode 653 */ 654 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 655 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 656 657 #if 1 658 if (loadfont || (etregs == &loc_regs)) 659 #else 660 if (etregs == &loc_regs) 661 #endif 662 et_hwrest(etregs); 663 } 664
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