1 /* $NetBSD: ite_et.c,v 1.29 2010/04/13 11:31:11 tsutsui 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: ite_et.c,v 1.29 2010/04/13 11:31:11 tsutsui Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/conf.h> 34 #include <sys/ioctl.h> 35 #include <sys/malloc.h> 36 #include <sys/device.h> 37 #include <dev/cons.h> 38 39 #include <machine/cpu.h> 40 41 #include <atari/atari/device.h> 42 43 #include <atari/dev/itevar.h> 44 #include <atari/dev/iteioctl.h> 45 #include <atari/dev/grfioctl.h> 46 #include <atari/dev/grf_etreg.h> 47 #include <atari/dev/grfabs_reg.h> 48 #include <atari/dev/grfabs_et.h> 49 #include <atari/dev/grfvar.h> 50 #include <atari/dev/font.h> 51 #include <atari/dev/viewioctl.h> 52 #include <atari/dev/viewvar.h> 53 54 #include "grfet.h" 55 56 /* 57 * This is what ip->priv points to; 58 * it contains local variables for custom-chip ites. 59 */ 60 struct ite_priv { 61 volatile u_char *regkva; 62 }; 63 64 typedef struct ite_priv ipriv_t; 65 66 static ipriv_t con_ipriv; 67 68 /* Console colors */ 69 static u_char etconscolors[3][3] = { /* background, foreground, hilite */ 70 {0x0, 0x0, 0x0}, {0x30, 0x30, 0x30}, { 0x3f, 0x3f, 0x3f} 71 }; 72 73 /* XXX: Shouldn't these be in font.h???? */ 74 extern font_info font_info_8x8; 75 extern font_info font_info_8x16; 76 77 static void grfet_iteinit(struct grf_softc *); 78 static void view_init(struct ite_softc *); 79 static void view_deinit(struct ite_softc *); 80 static int iteet_ioctl(struct ite_softc *, u_long, void *, int, 81 struct lwp *); 82 static int ite_newsize(struct ite_softc *, struct itewinsize *); 83 static void et_inittextmode(struct ite_softc *, et_sv_reg_t *, int); 84 void et_cursor(struct ite_softc *ip, int flag); 85 void et_clear(struct ite_softc *ip, int sy, int sx, int h, int w); 86 void et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode); 87 void et_scroll(struct ite_softc *ip, int sy, int sx, int count, 88 int dir); 89 90 /* 91 * grfet config stuff 92 */ 93 void grfetattach(struct device *, struct device *, void *); 94 int grfetmatch(struct device *, struct cfdata *, void *); 95 int grfetprint(void *, const char *); 96 97 CFATTACH_DECL(grfet, sizeof(struct grf_softc), 98 grfetmatch, grfetattach, NULL, NULL); 99 100 /* 101 * only used in console init. 102 */ 103 static struct cfdata *cfdata_grf = NULL; 104 105 int 106 grfetmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 107 { 108 static int card_probed = -1; 109 static int did_consinit = 0; 110 grf_auxp_t *grf_auxp = auxp; 111 extern const struct cdevsw view_cdevsw; 112 113 if (card_probed <= 0) { 114 if (card_probed == 0) /* Probed but failed */ 115 return 0; 116 card_probed = 0; 117 118 /* 119 * Check if the layers we depend on exist 120 */ 121 if (!(machineid & ATARI_HADES)) 122 return 0; 123 if (!et_probe_card()) 124 return 0; 125 if (grfabs_probe(&et_probe_video) == 0) 126 return 0; 127 viewprobe(); 128 card_probed = 1; /* Probed and found */ 129 } 130 131 if (atari_realconfig == 0) { 132 /* 133 * Early console init. Only match first unit. 134 */ 135 if (did_consinit) 136 return 0; 137 if ((*view_cdevsw.d_open)(cfp->cf_unit, 0, 0, NULL)) 138 return 0; 139 cfdata_grf = cfp; 140 did_consinit = 1; 141 return 1; 142 } 143 144 /* 145 * Normal config. When we are called directly from the grfbus, 146 * we only match the first unit. The attach function will call us for 147 * the other configured units. 148 */ 149 if (grf_auxp->from_bus_match 150 && ((did_consinit > 1) || !et_probe_card())) 151 return 0; 152 153 if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit)) 154 return 0; 155 156 /* 157 * Final constraint: each grf needs a view.... 158 */ 159 if ((cfdata_grf == NULL) || (did_consinit > 1)) { 160 if ((*view_cdevsw.d_open)(cfp->cf_unit, 0, 0, NULL)) 161 return 0; 162 } 163 did_consinit = 2; 164 return 1; 165 } 166 167 /* 168 * attach: initialize the grf-structure and try to attach an ite to us. 169 * note : dp is NULL during early console init. 170 */ 171 void 172 grfetattach(struct device *pdp, struct device *dp, void *auxp) 173 { 174 static struct grf_softc congrf; 175 static int first_attach = 1; 176 grf_auxp_t *grf_bus_auxp = auxp; 177 grf_auxp_t grf_auxp; 178 struct grf_softc *gp; 179 int maj; 180 extern const struct cdevsw grf_cdevsw; 181 182 /* 183 * find our major device number 184 */ 185 maj = cdevsw_lookup_major(&grf_cdevsw); 186 187 /* 188 * Handle exception case: early console init 189 */ 190 if (dp == NULL) { 191 congrf.g_unit = cfdata_grf->cf_unit; 192 congrf.g_grfdev = makedev(maj, congrf.g_unit); 193 congrf.g_itedev = (dev_t)-1; 194 congrf.g_flags = GF_ALIVE; 195 congrf.g_mode = grf_mode; 196 congrf.g_conpri = CN_INTERNAL; 197 congrf.g_viewdev = congrf.g_unit; 198 grfet_iteinit(&congrf); 199 grf_viewsync(&congrf); 200 201 /* Attach console ite */ 202 atari_config_found(cfdata_grf, NULL, &congrf, grfetprint); 203 return; 204 } 205 206 gp = (struct grf_softc *)dp; 207 gp->g_unit = device_unit(&gp->g_device); 208 grfsp[gp->g_unit] = gp; 209 210 if ((cfdata_grf != NULL) && (gp->g_unit == congrf.g_unit)) { 211 /* 212 * We inited earlier just copy the info, take care 213 * not to copy the device struct though. 214 */ 215 memcpy(&gp->g_display, &congrf.g_display, 216 (char *)&gp[1] - (char *)&gp->g_display); 217 } else { 218 gp->g_grfdev = makedev(maj, gp->g_unit); 219 gp->g_itedev = (dev_t)-1; 220 gp->g_flags = GF_ALIVE; 221 gp->g_mode = grf_mode; 222 gp->g_conpri = 0; 223 gp->g_viewdev = gp->g_unit; 224 grfet_iteinit(gp); 225 grf_viewsync(gp); 226 } 227 228 printf(": %dx%d", gp->g_display.gd_dwidth, gp->g_display.gd_dheight); 229 if (gp->g_display.gd_colors == 2) 230 printf(" monochrome\n"); 231 else 232 printf(" colors %d\n", gp->g_display.gd_colors); 233 234 /* 235 * try and attach an ite 236 */ 237 config_found(dp, gp, grfetprint); 238 239 /* 240 * If attaching the first unit, go ahead and 'find' the rest of us 241 */ 242 if (first_attach) { 243 first_attach = 0; 244 grf_auxp.from_bus_match = 0; 245 for (grf_auxp.unit=0; grf_auxp.unit < NGRFET; grf_auxp.unit++) { 246 config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint); 247 } 248 } 249 } 250 251 int 252 grfetprint(void *auxp, const char *pnp) 253 { 254 255 if (pnp) /* XXX */ 256 aprint_normal("ite at %s", pnp); 257 return UNCONF; 258 } 259 260 /* 261 * Init ite portion of grf_softc struct 262 */ 263 static void 264 grfet_iteinit(struct grf_softc *gp) 265 { 266 267 gp->g_itecursor = et_cursor; 268 gp->g_iteputc = et_putc; 269 gp->g_iteclear = et_clear; 270 gp->g_itescroll = et_scroll; 271 gp->g_iteinit = view_init; 272 gp->g_itedeinit = view_deinit; 273 } 274 275 static void 276 view_deinit(struct ite_softc *ip) 277 { 278 ip->flags &= ~ITE_INITED; 279 } 280 281 static void 282 view_init(register struct ite_softc *ip) 283 { 284 struct itewinsize wsz; 285 ipriv_t *cci; 286 view_t *view; 287 save_area_t *et_save; 288 289 if ((cci = ip->priv) != NULL) 290 return; 291 292 ip->itexx_ioctl = iteet_ioctl; 293 294 #if defined(KFONT_8X8) 295 ip->font = font_info_8x8; 296 #else 297 ip->font = font_info_8x16; 298 #endif 299 300 /* Find the correct set of rendering routines for this font. */ 301 if (ip->font.width != 8) 302 panic("kernel font size not supported"); 303 304 if (!atari_realconfig) 305 ip->priv = cci = &con_ipriv; 306 else 307 ip->priv = cci = malloc(sizeof(*cci), M_DEVBUF, M_WAITOK); 308 if (cci == NULL) 309 panic("No memory for ite-view"); 310 memset(cci, 0, sizeof(*cci)); 311 312 wsz.x = ite_default_x; 313 wsz.y = ite_default_y; 314 wsz.width = ite_default_width; 315 wsz.height = ite_default_height; 316 wsz.depth = ite_default_depth; 317 318 ite_newsize (ip, &wsz); 319 320 view = viewview(ip->grf->g_viewdev); 321 cci->regkva = view->bitmap->regs; 322 323 /* 324 * Only console will be turned on by default.. 325 */ 326 if (ip->flags & ITE_ISCONS) 327 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 328 329 /* 330 * Activate text-mode settings 331 */ 332 et_save = (save_area_t *)view->save_area; 333 if (et_save == NULL) 334 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 335 else { 336 et_inittextmode(ip, &et_save->sv_regs, view->flags&VF_DISPLAY); 337 et_save->fb_size = ip->cols * ip->rows; 338 } 339 } 340 341 static int 342 ite_newsize(struct ite_softc *ip, struct itewinsize *winsz) 343 { 344 struct view_size vs; 345 int error = 0; 346 save_area_t *et_save; 347 view_t *view; 348 extern const struct cdevsw view_cdevsw; 349 350 vs.x = winsz->x; 351 vs.y = winsz->y; 352 vs.width = winsz->width; 353 vs.height = winsz->height; 354 vs.depth = winsz->depth; 355 356 error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, VIOCSSIZE, 357 (void *)&vs, 0, NOLWP); 358 view = viewview(ip->grf->g_viewdev); 359 360 /* 361 * Reinitialize our structs 362 */ 363 ip->cols = view->display.width / ip->font.width; 364 ip->rows = view->display.height / ip->font.height; 365 366 /* 367 * save new values so that future opens use them 368 * this may not be correct when we implement Virtual Consoles 369 */ 370 ite_default_height = view->display.height; 371 ite_default_width = view->display.width; 372 ite_default_x = view->display.x; 373 ite_default_y = view->display.y; 374 ite_default_depth = view->bitmap->depth; 375 376 et_save = (save_area_t *)view->save_area; 377 if (et_save == NULL) 378 et_inittextmode(ip, NULL, view->flags & VF_DISPLAY); 379 else { 380 et_inittextmode(ip, &et_save->sv_regs, 381 view->flags & VF_DISPLAY); 382 et_save->fb_size = ip->cols * ip->rows; 383 } 384 et_clear(ip, 0, 0, ip->rows, ip->cols); 385 386 return error; 387 } 388 389 int 390 iteet_ioctl(struct ite_softc *ip, u_long cmd, void * addr, int flag, 391 struct lwp *l) 392 { 393 struct winsize ws; 394 struct itewinsize *is; 395 int error = 0; 396 view_t *view = viewview(ip->grf->g_viewdev); 397 extern const struct cdevsw ite_cdevsw; 398 extern const struct cdevsw view_cdevsw; 399 400 switch (cmd) { 401 case ITEIOCSWINSZ: 402 is = (struct itewinsize *)addr; 403 404 if (ite_newsize(ip, is)) 405 error = ENOMEM; 406 else { 407 view = viewview(ip->grf->g_viewdev); 408 ws.ws_row = ip->rows; 409 ws.ws_col = ip->cols; 410 ws.ws_xpixel = view->display.width; 411 ws.ws_ypixel = view->display.height; 412 ite_reset(ip); 413 /* 414 * XXX tell tty about the change 415 * XXX this is messy, but works 416 */ 417 (*ite_cdevsw.d_ioctl)(ip->grf->g_itedev, TIOCSWINSZ, 418 (void *)&ws, 0, l); 419 } 420 break; 421 case VIOCSCMAP: 422 case VIOCGCMAP: 423 /* 424 * XXX watchout for that NOLWP. its not really the kernel 425 * XXX talking these two commands don't use the proc pointer 426 * XXX though. 427 */ 428 error = (*view_cdevsw.d_ioctl)(ip->grf->g_viewdev, cmd, addr, 429 flag, NOLWP); 430 break; 431 default: 432 error = EPASSTHROUGH; 433 break; 434 } 435 return error; 436 } 437 438 void 439 et_cursor(struct ite_softc *ip, int flag) 440 { 441 volatile u_char *ba; 442 view_t *v; 443 u_long cpos; 444 445 ba = ((ipriv_t*)ip->priv)->regkva; 446 v = viewview(ip->grf->g_viewdev); 447 448 /* 449 * Don't update the cursor when not on display 450 */ 451 if (!(v->flags & VF_DISPLAY)) 452 return; 453 454 switch (flag) { 455 case DRAW_CURSOR: 456 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 457 case MOVE_CURSOR: 458 cpos = RCrt(ba, CRT_ID_START_ADDR_LOW) & 0xff; 459 cpos |= (RCrt(ba, CRT_ID_START_ADDR_HIGH) & 0xff) << 8; 460 cpos += ip->curx + ip->cury * ip->cols; 461 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, cpos & 0xff); 462 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (cpos >> 8) & 0xff); 463 WCrt(ba, CTR_ID_EXT_START, (cpos >> (16-2)) & 0x0c); 464 465 ip->cursorx = ip->curx; 466 ip->cursory = ip->cury; 467 break; 468 case ERASE_CURSOR: 469 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 470 case START_CURSOROPT: 471 case END_CURSOROPT: 472 default: 473 break; 474 } 475 } 476 477 void 478 et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode) 479 { 480 view_t *v = viewview(ip->grf->g_viewdev); 481 u_char attr; 482 u_short *cp; 483 484 attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 485 if (mode & ATTR_UL) attr |= 0x01; 486 if (mode & ATTR_BOLD) attr |= 0x08; 487 if (mode & ATTR_BLINK) attr |= 0x80; 488 489 cp = (u_short*)v->bitmap->plane; 490 cp[(dy * ip->cols) + dx] = (c << 8) | attr; 491 } 492 493 void 494 et_clear(struct ite_softc *ip, int sy, int sx, int h, int w) 495 { 496 /* et_clear and et_scroll both rely on ite passing arguments 497 * which describe continuous regions. For a VT200 terminal, 498 * this is safe behavior. 499 */ 500 view_t *v = viewview(ip->grf->g_viewdev); 501 u_short *dest; 502 int len; 503 504 dest = (u_short *)v->bitmap->plane + (sy * ip->cols) + sx; 505 for (len = w * h; len-- ;) 506 *dest++ = 0x2007; 507 } 508 509 void 510 et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir) 511 { 512 view_t *v = viewview(ip->grf->g_viewdev); 513 u_short *fb; 514 u_short *src, *dst; 515 int len; 516 517 fb = (u_short*)v->bitmap->plane + sy * ip->cols; 518 switch (dir) { 519 case SCROLL_UP: 520 src = fb; 521 dst = fb - count * ip->cols; 522 len = (ip->bottom_margin + 1 - sy) * ip->cols; 523 break; 524 case SCROLL_DOWN: 525 src = fb; 526 dst = fb + count * ip->cols; 527 len = (ip->bottom_margin + 1 - (sy + count)) * ip->cols; 528 break; 529 case SCROLL_RIGHT: 530 src = fb + sx; 531 dst = fb + sx + count; 532 len = ip->cols - sx + count; 533 break; 534 case SCROLL_LEFT: 535 src = fb + sx; 536 dst = fb + sx - count; 537 len = ip->cols - sx; 538 break; 539 default: 540 return; 541 } 542 if (src > dst) { 543 while (len--) 544 *dst++ = *src++; 545 } else { 546 src = &src[len]; 547 dst = &dst[len]; 548 while (len--) 549 *--dst = *--src; 550 } 551 } 552 553 static void 554 et_inittextmode(struct ite_softc *ip, et_sv_reg_t *etregs, int loadfont) 555 { 556 volatile u_char *ba; 557 font_info *fd; 558 u_char *fb; 559 u_char *c, *f, tmp; 560 u_short z, y; 561 int s; 562 view_t *v = viewview(ip->grf->g_viewdev); 563 et_sv_reg_t loc_regs; 564 565 if (etregs == NULL) { 566 etregs = &loc_regs; 567 et_hwsave(etregs); 568 } 569 570 ba = ((ipriv_t*)ip->priv)->regkva; 571 fb = v->bitmap->plane; 572 573 #if defined(KFONT_8X8) 574 fd = &font_info_8x8; 575 #else 576 fd = &font_info_8x16; 577 #endif 578 579 if (loadfont) { /* XXX: We should set the colormap */ 580 /* 581 * set colors (B&W) 582 */ 583 vgaw(ba, VDAC_ADDRESS_W, 0); 584 for (z = 0; z < 256; z++) { 585 y = (z & 1) ? ((z > 7) ? 2 : 1) : 0; 586 587 vgaw(ba, VDAC_DATA, etconscolors[y][0]); 588 vgaw(ba, VDAC_DATA, etconscolors[y][1]); 589 vgaw(ba, VDAC_DATA, etconscolors[y][2]); 590 } 591 592 /* 593 * Enter a suitable mode to download the font. This 594 * basically means sequential addressing mode 595 */ 596 s = splhigh(); 597 598 WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a); 599 WSeq(ba, SEQ_ID_MAP_MASK, 0x04); 600 WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06); 601 WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02); 602 WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00); 603 WGfx(ba, GCT_ID_MISC, 0x04); 604 splx(s); 605 606 /* 607 * load text font into beginning of display memory. Each 608 * character cell is 32 bytes long (enough for 4 planes) 609 */ 610 for (z = 0, c = fb; z < 256 * 32; z++) 611 *c++ = 0; 612 613 c = (unsigned char *) (fb) + (32 * fd->font_lo); 614 f = fd->font_p; 615 z = fd->font_lo; 616 for (; z <= fd->font_hi; z++, c += (32 - fd->height)) 617 for (y = 0; y < fd->height; y++) { 618 *c++ = *f++; 619 } 620 } 621 622 /* 623 * Odd/Even addressing 624 */ 625 etregs->seq[SEQ_ID_MAP_MASK] = 0x03; 626 etregs->seq[SEQ_ID_MEMORY_MODE] = 0x03; 627 etregs->grf[GCT_ID_READ_MAP_SELECT] = 0x00; 628 etregs->grf[GCT_ID_GRAPHICS_MODE] = 0x10; 629 etregs->grf[GCT_ID_MISC] = 0x06; 630 631 /* 632 * Font height + underline location 633 */ 634 tmp = etregs->crt[CRT_ID_MAX_ROW_ADDRESS] & 0xe0; 635 etregs->crt[CRT_ID_MAX_ROW_ADDRESS] = tmp | (fd->height - 1); 636 tmp = etregs->crt[CRT_ID_UNDERLINE_LOC] & 0xe0; 637 etregs->crt[CRT_ID_UNDERLINE_LOC] = tmp | (fd->height - 1); 638 639 /* 640 * Cursor setup 641 */ 642 etregs->crt[CRT_ID_CURSOR_START] = 0x00; 643 etregs->crt[CRT_ID_CURSOR_END] = fd->height - 1; 644 etregs->crt[CRT_ID_CURSOR_LOC_HIGH] = 0x00; 645 etregs->crt[CRT_ID_CURSOR_LOC_LOW] = 0x00; 646 647 /* 648 * Enter text mode 649 */ 650 etregs->crt[CRT_ID_MODE_CONTROL] = 0xa3; 651 etregs->attr[ACT_ID_ATTR_MODE_CNTL] = 0x0a; 652 653 #if 1 654 if (loadfont || (etregs == &loc_regs)) 655 #else 656 if (etregs == &loc_regs) 657 #endif 658 et_hwrest(etregs); 659 } 660