rcons_subr.c revision 1.8
1 /* $NetBSD: rcons_subr.c,v 1.8 2001/09/18 18:15:53 wiz Exp $ */ 2 3 /* 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)rcons_subr.c 8.1 (Berkeley) 6/11/93 45 */ 46 47 #ifdef _KERNEL 48 #include <sys/param.h> 49 #include <sys/device.h> 50 #include <sys/systm.h> 51 #else 52 #include <sys/types.h> 53 #include "myfbdevice.h" 54 #endif 55 56 #include <dev/rcons/rcons.h> 57 #include <dev/wscons/wsdisplayvar.h> 58 59 extern void rcons_bell(struct rconsole *); 60 61 #if 0 62 #define RCONS_ISPRINT(c) ((((c) >= ' ') && ((c) <= '~')) || ((c) > 160)) 63 #else 64 #define RCONS_ISPRINT(c) (((((c) >= ' ') && ((c) <= '~'))) || ((c) > 127)) 65 #endif 66 #define RCONS_ISDIGIT(c) ((c) >= '0' && (c) <= '9') 67 68 /* Initialize our operations set */ 69 void 70 rcons_init_ops(rc) 71 struct rconsole *rc; 72 { 73 long tmp; 74 int i, m; 75 76 m = sizeof(rc->rc_charmap) / sizeof(rc->rc_charmap[0]); 77 78 for (i = 0; i < m; i++) 79 rc->rc_ops->mapchar(rc->rc_cookie, i, rc->rc_charmap + i); 80 81 /* Determine which attributes the device supports. */ 82 #ifdef RASTERCONSOLE_FGCOL 83 rc->rc_deffgcolor = RASTERCONSOLE_FGCOL; 84 #endif 85 #ifdef RASTERCONSOLE_BGCOL 86 rc->rc_defbgcolor = RASTERCONSOLE_BGCOL; 87 #endif 88 rc->rc_fgcolor = rc->rc_deffgcolor; 89 rc->rc_bgcolor = rc->rc_defbgcolor; 90 rc->rc_supwsflg = 0; 91 92 for (i = 1; i < 256; i <<= 1) 93 if (rc->rc_ops->alloc_attr(rc->rc_cookie, 0, 0, i, &tmp) == 0) 94 rc->rc_supwsflg |= i; 95 96 /* Allocate kernel output attribute */ 97 rc->rc_wsflg = WSATTR_HILIT; 98 rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor); 99 rc->rc_kern_attr = rc->rc_attr; 100 101 rc->rc_wsflg = 0; 102 rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor); 103 rc->rc_defattr = rc->rc_attr; 104 } 105 106 /* Output (or at least handle) a string sent to the console */ 107 void 108 rcons_puts(rc, str, n) 109 struct rconsole *rc; 110 unsigned char *str; 111 int n; 112 { 113 int c, i, j; 114 unsigned char *cp; 115 116 /* Jump scroll */ 117 /* XXX maybe this should be an option? */ 118 if ((rc->rc_bits & FB_INESC) == 0) { 119 /* Count newlines up to an escape sequence */ 120 i = 0; 121 j = 0; 122 for (cp = str; j++ < n && *cp != '\033'; ++cp) { 123 if (*cp == '\n') 124 ++i; 125 else if (*cp == '\013') 126 --i; 127 } 128 129 /* Only jump scroll two or more rows */ 130 if (rc->rc_row + i > rc->rc_maxrow + 1) { 131 /* Erase the cursor (if necessary) */ 132 if (rc->rc_bits & FB_CURSOR) 133 rcons_cursor(rc); 134 135 rcons_scroll(rc, i); 136 } 137 } 138 139 /* Process characters */ 140 while (--n >= 0) { 141 c = *str; 142 if (c == '\033') { 143 /* Start an escape (perhaps aborting one in progress) */ 144 rc->rc_bits |= FB_INESC | FB_P0_DEFAULT | FB_P1_DEFAULT; 145 rc->rc_bits &= ~(FB_P0 | FB_P1); 146 147 /* Most parameters default to 1 */ 148 rc->rc_p0 = rc->rc_p1 = 1; 149 } else if (rc->rc_bits & FB_INESC) { 150 rcons_esc(rc, c); 151 } else { 152 /* Erase the cursor (if necessary) */ 153 if (rc->rc_bits & FB_CURSOR) 154 rcons_cursor(rc); 155 156 /* Display the character */ 157 if (RCONS_ISPRINT(c)) { 158 /* Try to output as much as possible */ 159 j = rc->rc_maxcol - rc->rc_col; 160 if (j > n) 161 j = n; 162 for (i = 1; i < j && RCONS_ISPRINT(str[i]); ++i) 163 continue; 164 rcons_text(rc, str, i); 165 --i; 166 str += i; 167 n -= i; 168 } else 169 rcons_pctrl(rc, c); 170 } 171 ++str; 172 } 173 /* Redraw the cursor (if necessary) */ 174 if ((rc->rc_bits & FB_CURSOR) == 0) 175 rcons_cursor(rc); 176 } 177 178 179 /* Handle a control character sent to the console */ 180 void 181 rcons_pctrl(rc, c) 182 struct rconsole *rc; 183 int c; 184 { 185 186 switch (c) { 187 case '\r': /* Carriage return */ 188 rc->rc_col = 0; 189 break; 190 191 case '\b': /* Backspace */ 192 if (rc->rc_col > 0) 193 (rc->rc_col)--; 194 break; 195 196 case '\v': /* Vertical tab */ 197 if (rc->rc_row > 0) 198 (rc->rc_row)--; 199 break; 200 201 case '\f': /* Formfeed */ 202 rc->rc_row = rc->rc_col = 0; 203 rcons_clear2eop(rc); 204 break; 205 206 case '\n': /* Linefeed */ 207 (rc->rc_row)++; 208 if (rc->rc_row >= rc->rc_maxrow) 209 rcons_scroll(rc, 1); 210 break; 211 212 case '\a': /* Bell */ 213 rcons_bell(rc); 214 break; 215 216 case '\t': /* Horizontal tab */ 217 rc->rc_col = (rc->rc_col + 8) & ~7; 218 if (rc->rc_col >= rc->rc_maxcol) 219 rc->rc_col = rc->rc_maxcol; 220 break; 221 } 222 } 223 224 /* Handle the next character in an escape sequence */ 225 void 226 rcons_esc(rc, c) 227 struct rconsole *rc; 228 int c; 229 { 230 231 if (c == '[') { 232 /* Parameter 0 */ 233 rc->rc_bits &= ~FB_P1; 234 rc->rc_bits |= FB_P0; 235 } else if (c == ';') { 236 /* Parameter 1 */ 237 rc->rc_bits &= ~FB_P0; 238 rc->rc_bits |= FB_P1; 239 } else if (RCONS_ISDIGIT(c)) { 240 /* Add a digit to a parameter */ 241 if (rc->rc_bits & FB_P0) { 242 /* Parameter 0 */ 243 if (rc->rc_bits & FB_P0_DEFAULT) { 244 rc->rc_bits &= ~FB_P0_DEFAULT; 245 rc->rc_p0 = 0; 246 } 247 rc->rc_p0 *= 10; 248 rc->rc_p0 += c - '0'; 249 } else if (rc->rc_bits & FB_P1) { 250 /* Parameter 1 */ 251 if (rc->rc_bits & FB_P1_DEFAULT) { 252 rc->rc_bits &= ~FB_P1_DEFAULT; 253 rc->rc_p1 = 0; 254 } 255 rc->rc_p1 *= 10; 256 rc->rc_p1 += c - '0'; 257 } 258 } else { 259 /* Erase the cursor (if necessary) */ 260 if (rc->rc_bits & FB_CURSOR) 261 rcons_cursor(rc); 262 263 /* Process the completed escape sequence */ 264 rcons_doesc(rc, c); 265 rc->rc_bits &= ~FB_INESC; 266 } 267 } 268 269 270 /* Handle an SGR (Select Graphic Rendition) escape */ 271 void 272 rcons_sgresc(rc, c) 273 struct rconsole *rc; 274 int c; 275 { 276 277 switch (c) { 278 /* Clear all attributes || End underline */ 279 case 0: 280 rc->rc_wsflg = 0; 281 rc->rc_fgcolor = rc->rc_deffgcolor; 282 rc->rc_bgcolor = rc->rc_defbgcolor; 283 rc->rc_attr = rc->rc_defattr; 284 break; 285 286 /* ANSI foreground color */ 287 case 30: case 31: case 32: case 33: 288 case 34: case 35: case 36: case 37: 289 rcons_setcolor(rc, c - 30, rc->rc_bgcolor); 290 break; 291 292 /* ANSI background color */ 293 case 40: case 41: case 42: case 43: 294 case 44: case 45: case 46: case 47: 295 rcons_setcolor(rc, rc->rc_fgcolor, c - 40); 296 break; 297 298 /* Begin reverse */ 299 case 7: 300 rc->rc_wsflg |= WSATTR_REVERSE; 301 rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor); 302 break; 303 304 /* Begin bold */ 305 case 1: 306 rc->rc_wsflg |= WSATTR_HILIT; 307 rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor); 308 break; 309 310 /* Begin underline */ 311 case 4: 312 rc->rc_wsflg |= WSATTR_UNDERLINE; 313 rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor); 314 break; 315 } 316 } 317 318 319 /* Process a complete escape sequence */ 320 void 321 rcons_doesc(rc, c) 322 struct rconsole *rc; 323 int c; 324 { 325 326 #ifdef notdef 327 /* XXX add escape sequence to enable visual (and audible) bell */ 328 rc->rc_bits = FB_VISBELL; 329 #endif 330 331 switch (c) { 332 333 case '@': 334 /* Insert Character (ICH) */ 335 rcons_insertchar(rc, rc->rc_p0); 336 break; 337 338 case 'A': 339 /* Cursor Up (CUU) */ 340 rc->rc_row -= rc->rc_p0; 341 if (rc->rc_row < 0) 342 rc->rc_row = 0; 343 break; 344 345 case 'B': 346 /* Cursor Down (CUD) */ 347 rc->rc_row += rc->rc_p0; 348 if (rc->rc_row >= rc->rc_maxrow) 349 rc->rc_row = rc->rc_maxrow - 1; 350 break; 351 352 case 'C': 353 /* Cursor Forward (CUF) */ 354 rc->rc_col += rc->rc_p0; 355 if (rc->rc_col >= rc->rc_maxcol) 356 rc->rc_col = rc->rc_maxcol - 1; 357 break; 358 359 case 'D': 360 /* Cursor Backward (CUB) */ 361 rc->rc_col -= rc->rc_p0; 362 if (rc->rc_col < 0) 363 rc->rc_col = 0; 364 break; 365 366 case 'E': 367 /* Cursor Next Line (CNL) */ 368 rc->rc_col = 0; 369 rc->rc_row += rc->rc_p0; 370 if (rc->rc_row >= rc->rc_maxrow) 371 rc->rc_row = rc->rc_maxrow - 1; 372 break; 373 374 case 'f': 375 /* Horizontal And Vertical Position (HVP) */ 376 case 'H': 377 /* Cursor Position (CUP) */ 378 rc->rc_col = rc->rc_p1 - 1; 379 if (rc->rc_col < 0) 380 rc->rc_col = 0; 381 else if (rc->rc_col >= rc->rc_maxcol) 382 rc->rc_col = rc->rc_maxcol - 1; 383 384 rc->rc_row = rc->rc_p0 - 1; 385 if (rc->rc_row < 0) 386 rc->rc_row = 0; 387 else if (rc->rc_row >= rc->rc_maxrow) 388 rc->rc_row = rc->rc_maxrow - 1; 389 break; 390 391 case 'J': 392 /* Erase in Display (ED) */ 393 rcons_clear2eop(rc); 394 break; 395 396 case 'K': 397 /* Erase in Line (EL) */ 398 rcons_clear2eol(rc); 399 break; 400 401 case 'L': 402 /* Insert Line (IL) */ 403 rcons_insertline(rc, rc->rc_p0); 404 break; 405 406 case 'M': 407 /* Delete Line (DL) */ 408 rcons_delline(rc, rc->rc_p0); 409 break; 410 411 case 'P': 412 /* Delete Character (DCH) */ 413 rcons_delchar(rc, rc->rc_p0); 414 break; 415 416 case 'm': 417 /* Select Graphic Rendition (SGR) */ 418 /* (defaults to zero) */ 419 if (rc->rc_bits & FB_P0_DEFAULT) 420 rc->rc_p0 = 0; 421 422 if (rc->rc_bits & FB_P1_DEFAULT) 423 rc->rc_p1 = 0; 424 425 rcons_sgresc(rc, rc->rc_p0); 426 427 if (rc->rc_bits & FB_P1) 428 rcons_sgresc(rc, rc->rc_p1); 429 430 break; 431 432 /* 433 * XXX: setting SUNBOW and SUNWOB should probably affect 434 * deffgcolor, defbgcolor and defattr too. 435 */ 436 case 'p': 437 /* Black On White (SUNBOW) */ 438 rcons_setcolor(rc, WSCOL_BLACK, WSCOL_WHITE); 439 break; 440 441 case 'q': 442 /* White On Black (SUNWOB) */ 443 rcons_setcolor(rc, WSCOL_WHITE, WSCOL_BLACK); 444 break; 445 446 case 'r': 447 /* Set scrolling (SUNSCRL) */ 448 /* (defaults to zero) */ 449 if (rc->rc_bits & FB_P0_DEFAULT) 450 rc->rc_p0 = 0; 451 /* XXX not implemented yet */ 452 rc->rc_scroll = rc->rc_p0; 453 break; 454 455 case 's': 456 /* Reset terminal emulator (SUNRESET) */ 457 rc->rc_wsflg = 0; 458 rc->rc_scroll = 0; 459 rc->rc_bits &= ~FB_NO_CURSOR; 460 rc->rc_fgcolor = rc->rc_deffgcolor; 461 rc->rc_bgcolor = rc->rc_defbgcolor; 462 rc->rc_attr = rc->rc_defattr; 463 464 if (rc->rc_bits & FB_INVERT) 465 rcons_invert(rc, 0); 466 break; 467 #ifdef notyet 468 /* 469 * XXX following two read \E[?25h and \E[?25l. rcons 470 * can't currently handle the '?'. 471 */ 472 case 'h': 473 /* Normal/very visible cursor */ 474 if (rc->rc_p0 == 25) { 475 rc->rc_bits &= ~FB_NO_CURSOR; 476 477 if (rc->rc_bits & FB_CURSOR) { 478 rc->rc_bits ^= FB_CURSOR; 479 rcons_cursor(rc); 480 } 481 } 482 break; 483 484 case 'l': 485 /* Invisible cursor */ 486 if (rc->rc_p0 == 25 && (rc->rc_bits & FB_NO_CURSOR) == 0) { 487 if (rc->rc_bits & FB_CURSOR) 488 rcons_cursor(rc); 489 490 rc->rc_bits |= FB_NO_CURSOR; 491 } 492 break; 493 #endif 494 } 495 } 496 497 /* Set ANSI colors */ 498 void 499 rcons_setcolor(rc, fg, bg) 500 struct rconsole *rc; 501 int fg, bg; 502 { 503 int flg; 504 505 if (fg > WSCOL_WHITE || fg < 0) 506 return; 507 508 if (bg > WSCOL_WHITE || bg < 0) 509 return; 510 511 #ifdef RASTERCONS_WONB 512 flg = bg; 513 bg = fg; 514 fg = flg; 515 #endif 516 517 /* Emulate WSATTR_REVERSE attribute if it's not supported */ 518 if ((rc->rc_wsflg & WSATTR_REVERSE) && 519 !(rc->rc_supwsflg & WSATTR_REVERSE)) { 520 flg = bg; 521 bg = fg; 522 fg = flg; 523 } 524 525 /* 526 * Mask out unsupported flags and get attribute 527 * XXX - always ask for WSCOLORS if supported (why shouldn't we?) 528 */ 529 flg = (rc->rc_wsflg | WSATTR_WSCOLORS) & rc->rc_supwsflg; 530 rc->rc_bgcolor = bg; 531 rc->rc_fgcolor = fg; 532 rc->rc_ops->alloc_attr(rc->rc_cookie, fg, bg, flg, &rc->rc_attr); 533 } 534 535 536 /* Actually write a string to the frame buffer */ 537 void 538 rcons_text(rc, str, n) 539 struct rconsole *rc; 540 unsigned char *str; 541 int n; 542 { 543 u_int uc; 544 545 while (n--) { 546 uc = rc->rc_charmap[*str++ & 255]; 547 rc->rc_ops->putchar(rc->rc_cookie, rc->rc_row, rc->rc_col++, 548 uc, rc->rc_attr); 549 } 550 551 if (rc->rc_col >= rc->rc_maxcol) { 552 rc->rc_col = 0; 553 rc->rc_row++; 554 } 555 556 if (rc->rc_row >= rc->rc_maxrow) 557 rcons_scroll(rc, 1); 558 } 559 560 /* Paint (or unpaint) the cursor */ 561 void 562 rcons_cursor(rc) 563 struct rconsole *rc; 564 { 565 rc->rc_bits ^= FB_CURSOR; 566 567 if (rc->rc_bits & FB_NO_CURSOR) 568 return; 569 570 rc->rc_ops->cursor(rc->rc_cookie, rc->rc_bits & FB_CURSOR, 571 rc->rc_row, rc->rc_col); 572 } 573 574 /* Possibly change to SUNWOB or SUNBOW mode */ 575 void 576 rcons_invert(rc, wob) 577 struct rconsole *rc; 578 int wob; 579 { 580 581 rc->rc_bits ^= FB_INVERT; 582 /* XXX how do we do we invert the framebuffer?? */ 583 } 584 585 /* Clear to the end of the page */ 586 void 587 rcons_clear2eop(rc) 588 struct rconsole *rc; 589 { 590 if (rc->rc_col || rc->rc_row) { 591 rcons_clear2eol(rc); 592 593 if (rc->rc_row < (rc->rc_maxrow - 1)) 594 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_row + 1, 595 rc->rc_maxrow, rc->rc_attr); 596 } else 597 rc->rc_ops->eraserows(rc->rc_cookie, 0, rc->rc_maxrow, 598 rc->rc_attr); 599 } 600 601 /* Clear to the end of the line */ 602 void 603 rcons_clear2eol(rc) 604 struct rconsole *rc; 605 { 606 rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, rc->rc_col, 607 rc->rc_maxcol - rc->rc_col, rc->rc_attr); 608 } 609 610 611 /* Scroll up */ 612 void 613 rcons_scroll(rc, n) 614 struct rconsole *rc; 615 int n; 616 { 617 /* Can't scroll more than the whole screen */ 618 if (n > rc->rc_maxrow) 619 n = rc->rc_maxrow; 620 621 /* Calculate new row */ 622 rc->rc_row -= n; 623 624 if (rc->rc_row < 0) 625 rc->rc_row = 0; 626 627 rc->rc_ops->copyrows(rc->rc_cookie, n, 0, rc->rc_maxrow - n); 628 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_maxrow - n, n, rc->rc_attr); 629 } 630 631 /* Delete characters */ 632 void 633 rcons_delchar(rc, n) 634 struct rconsole *rc; 635 int n; 636 { 637 /* Can't delete more chars than there are */ 638 if (n > rc->rc_maxcol - rc->rc_col) 639 n = rc->rc_maxcol - rc->rc_col; 640 641 rc->rc_ops->copycols(rc->rc_cookie, rc->rc_row, rc->rc_col + n, 642 rc->rc_col, rc->rc_maxcol - rc->rc_col - n); 643 644 rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, 645 rc->rc_maxcol - n, n, rc->rc_attr); 646 } 647 648 /* Delete a number of lines */ 649 void 650 rcons_delline(rc, n) 651 struct rconsole *rc; 652 int n; 653 { 654 /* Can't delete more lines than there are */ 655 if (n > rc->rc_maxrow - rc->rc_row) 656 n = rc->rc_maxrow - rc->rc_row; 657 658 rc->rc_ops->copyrows(rc->rc_cookie, rc->rc_row + n, rc->rc_row, 659 rc->rc_maxrow - rc->rc_row - n); 660 661 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_maxrow - n, n, 662 rc->rc_attr); 663 } 664 665 /* Insert some characters */ 666 void 667 rcons_insertchar(rc, n) 668 struct rconsole *rc; 669 int n; 670 { 671 /* Can't insert more chars than can fit */ 672 if (n > rc->rc_maxcol - rc->rc_col) 673 n = rc->rc_maxcol - rc->rc_col - 1; 674 675 rc->rc_ops->copycols(rc->rc_cookie, rc->rc_row, rc->rc_col, 676 rc->rc_col + n, rc->rc_maxcol - rc->rc_col - n - 1); 677 678 rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, rc->rc_col, 679 n, rc->rc_attr); 680 } 681 682 /* Insert some lines */ 683 void 684 rcons_insertline(rc, n) 685 struct rconsole *rc; 686 int n; 687 { 688 /* Can't insert more lines than can fit */ 689 if (n > rc->rc_maxrow - rc->rc_row) 690 n = rc->rc_maxrow - rc->rc_row; 691 692 rc->rc_ops->copyrows(rc->rc_cookie, rc->rc_row, rc->rc_row + n, 693 rc->rc_maxrow - rc->rc_row - n); 694 695 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_row, n, 696 rc->rc_attr); 697 } 698 699 /* end of rcons_subr.c */ 700
Indexes created Sun Oct 12 20:09:57 GMT 2025