rcons_subr.c revision 1.15.2.1
1 /* $NetBSD: rcons_subr.c,v 1.15.2.1 2006/02/01 14:52:20 yamt 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. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)rcons_subr.c 8.1 (Berkeley) 6/11/93 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: rcons_subr.c,v 1.15.2.1 2006/02/01 14:52:20 yamt Exp $"); 45 46 #include <sys/param.h> 47 #ifdef _KERNEL 48 #include <sys/device.h> 49 #include <sys/systm.h> 50 #else 51 #include "myfbdevice.h" 52 #endif 53 54 #include <dev/rcons/rcons.h> 55 #include <dev/wscons/wsdisplayvar.h> 56 57 extern void rcons_bell(struct rconsole *); 58 59 #if 0 60 #define RCONS_ISPRINT(c) ((((c) >= ' ') && ((c) <= '~')) || ((c) > 160)) 61 #else 62 #define RCONS_ISPRINT(c) (((((c) >= ' ') && ((c) <= '~'))) || ((c) > 127)) 63 #endif 64 #define RCONS_ISDIGIT(c) ((c) >= '0' && (c) <= '9') 65 66 /* Initialize our operations set */ 67 void 68 rcons_init_ops(rc) 69 struct rconsole *rc; 70 { 71 long tmp; 72 int i, m; 73 74 m = sizeof(rc->rc_charmap) / sizeof(rc->rc_charmap[0]); 75 76 for (i = 0; i < m; i++) 77 rc->rc_ops->mapchar(rc->rc_cookie, i, rc->rc_charmap + i); 78 79 /* Determine which attributes the device supports. */ 80 #ifdef RASTERCONSOLE_FGCOL 81 rc->rc_deffgcolor = RASTERCONSOLE_FGCOL; 82 #endif 83 #ifdef RASTERCONSOLE_BGCOL 84 rc->rc_defbgcolor = RASTERCONSOLE_BGCOL; 85 #endif 86 rc->rc_fgcolor = rc->rc_deffgcolor; 87 rc->rc_bgcolor = rc->rc_defbgcolor; 88 rc->rc_supwsflg = 0; 89 90 for (i = 1; i < 256; i <<= 1) 91 if (rc->rc_ops->allocattr(rc->rc_cookie, 0, 0, i, &tmp) == 0) 92 rc->rc_supwsflg |= i; 93 94 /* Allocate kernel output attribute */ 95 rc->rc_wsflg = WSATTR_HILIT; 96 rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor); 97 rc->rc_kern_attr = rc->rc_attr; 98 99 rc->rc_wsflg = 0; 100 rcons_setcolor(rc, rc->rc_deffgcolor, rc->rc_defbgcolor); 101 rc->rc_defattr = rc->rc_attr; 102 } 103 104 /* Output (or at least handle) a string sent to the console */ 105 void 106 rcons_puts(rc, str, n) 107 struct rconsole *rc; 108 const unsigned char *str; 109 int n; 110 { 111 int c, i, j; 112 const unsigned char *cp; 113 114 /* Jump scroll */ 115 /* XXX maybe this should be an option? */ 116 if ((rc->rc_bits & FB_INESC) == 0) { 117 /* Count newlines up to an escape sequence */ 118 i = 0; 119 j = 0; 120 for (cp = str; j++ < n && *cp != '\033'; ++cp) { 121 if (*cp == '\n') 122 ++i; 123 else if (*cp == '\013') 124 --i; 125 } 126 127 /* Only jump scroll two or more rows */ 128 if (rc->rc_row + i > rc->rc_maxrow + 1) { 129 /* Erase the cursor (if necessary) */ 130 if (rc->rc_bits & FB_CURSOR) 131 rcons_cursor(rc); 132 133 rcons_scroll(rc, i); 134 } 135 } 136 137 /* Process characters */ 138 while (--n >= 0) { 139 c = *str; 140 if (c == '\033') { 141 /* Start an escape (perhaps aborting one in progress) */ 142 rc->rc_bits |= FB_INESC | FB_P0_DEFAULT | FB_P1_DEFAULT; 143 rc->rc_bits &= ~(FB_P0 | FB_P1); 144 145 /* Most parameters default to 1 */ 146 rc->rc_p0 = rc->rc_p1 = 1; 147 } else if (rc->rc_bits & FB_INESC) { 148 rcons_esc(rc, c); 149 } else { 150 /* Erase the cursor (if necessary) */ 151 if (rc->rc_bits & FB_CURSOR) 152 rcons_cursor(rc); 153 154 /* Display the character */ 155 if (RCONS_ISPRINT(c)) { 156 /* Try to output as much as possible */ 157 j = rc->rc_maxcol - rc->rc_col; 158 if (j > n) 159 j = n; 160 for (i = 1; i < j && RCONS_ISPRINT(str[i]); ++i) 161 continue; 162 rcons_text(rc, str, i); 163 --i; 164 str += i; 165 n -= i; 166 } else 167 rcons_pctrl(rc, c); 168 } 169 ++str; 170 } 171 /* Redraw the cursor (if necessary) */ 172 if ((rc->rc_bits & FB_CURSOR) == 0) 173 rcons_cursor(rc); 174 } 175 176 177 /* Handle a control character sent to the console */ 178 void 179 rcons_pctrl(rc, c) 180 struct rconsole *rc; 181 int c; 182 { 183 184 switch (c) { 185 case '\r': /* Carriage return */ 186 rc->rc_col = 0; 187 break; 188 189 case '\b': /* Backspace */ 190 if (rc->rc_col > 0) 191 (rc->rc_col)--; 192 break; 193 194 case '\v': /* Vertical tab */ 195 if (rc->rc_row > 0) 196 (rc->rc_row)--; 197 break; 198 199 case '\f': /* Formfeed */ 200 rc->rc_row = rc->rc_col = 0; 201 rcons_clear2eop(rc); 202 break; 203 204 case '\n': /* Linefeed */ 205 (rc->rc_row)++; 206 if (rc->rc_row >= rc->rc_maxrow) 207 rcons_scroll(rc, 1); 208 break; 209 210 case '\a': /* Bell */ 211 rcons_bell(rc); 212 break; 213 214 case '\t': /* Horizontal tab */ 215 rc->rc_col = (rc->rc_col + 8) & ~7; 216 if (rc->rc_col >= rc->rc_maxcol) 217 rc->rc_col = rc->rc_maxcol; 218 break; 219 } 220 } 221 222 /* Handle the next character in an escape sequence */ 223 void 224 rcons_esc(rc, c) 225 struct rconsole *rc; 226 int c; 227 { 228 229 if (c == '[') { 230 /* Parameter 0 */ 231 rc->rc_bits &= ~FB_P1; 232 rc->rc_bits |= FB_P0; 233 } else if (c == ';') { 234 /* Parameter 1 */ 235 rc->rc_bits &= ~FB_P0; 236 rc->rc_bits |= FB_P1; 237 } else if (RCONS_ISDIGIT(c)) { 238 /* Add a digit to a parameter */ 239 if (rc->rc_bits & FB_P0) { 240 /* Parameter 0 */ 241 if (rc->rc_bits & FB_P0_DEFAULT) { 242 rc->rc_bits &= ~FB_P0_DEFAULT; 243 rc->rc_p0 = 0; 244 } 245 rc->rc_p0 *= 10; 246 rc->rc_p0 += c - '0'; 247 } else if (rc->rc_bits & FB_P1) { 248 /* Parameter 1 */ 249 if (rc->rc_bits & FB_P1_DEFAULT) { 250 rc->rc_bits &= ~FB_P1_DEFAULT; 251 rc->rc_p1 = 0; 252 } 253 rc->rc_p1 *= 10; 254 rc->rc_p1 += c - '0'; 255 } 256 } else { 257 /* Erase the cursor (if necessary) */ 258 if (rc->rc_bits & FB_CURSOR) 259 rcons_cursor(rc); 260 261 /* Process the completed escape sequence */ 262 rcons_doesc(rc, c); 263 rc->rc_bits &= ~FB_INESC; 264 } 265 } 266 267 268 /* Handle an SGR (Select Graphic Rendition) escape */ 269 void 270 rcons_sgresc(rc, c) 271 struct rconsole *rc; 272 int c; 273 { 274 275 switch (c) { 276 /* Clear all attributes || End underline */ 277 case 0: 278 rc->rc_wsflg = 0; 279 rc->rc_fgcolor = rc->rc_deffgcolor; 280 rc->rc_bgcolor = rc->rc_defbgcolor; 281 rc->rc_attr = rc->rc_defattr; 282 break; 283 284 /* ANSI foreground color */ 285 case 30: case 31: case 32: case 33: 286 case 34: case 35: case 36: case 37: 287 rcons_setcolor(rc, c - 30, rc->rc_bgcolor); 288 break; 289 290 /* ANSI background color */ 291 case 40: case 41: case 42: case 43: 292 case 44: case 45: case 46: case 47: 293 rcons_setcolor(rc, rc->rc_fgcolor, c - 40); 294 break; 295 296 /* Begin reverse */ 297 case 7: 298 rc->rc_wsflg |= WSATTR_REVERSE; 299 rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor); 300 break; 301 302 /* Begin bold */ 303 case 1: 304 rc->rc_wsflg |= WSATTR_HILIT; 305 rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor); 306 break; 307 308 /* Begin underline */ 309 case 4: 310 rc->rc_wsflg |= WSATTR_UNDERLINE; 311 rcons_setcolor(rc, rc->rc_fgcolor, rc->rc_bgcolor); 312 break; 313 } 314 } 315 316 317 /* Process a complete escape sequence */ 318 void 319 rcons_doesc(rc, c) 320 struct rconsole *rc; 321 int c; 322 { 323 324 #ifdef notdef 325 /* XXX add escape sequence to enable visual (and audible) bell */ 326 rc->rc_bits = FB_VISBELL; 327 #endif 328 329 switch (c) { 330 331 case '@': 332 /* Insert Character (ICH) */ 333 rcons_insertchar(rc, rc->rc_p0); 334 break; 335 336 case 'A': 337 /* Cursor Up (CUU) */ 338 if (rc->rc_row >= rc->rc_p0) 339 rc->rc_row -= rc->rc_p0; 340 else 341 rc->rc_row = 0; 342 break; 343 344 case 'B': 345 /* Cursor Down (CUD) */ 346 rc->rc_row += rc->rc_p0; 347 if (rc->rc_row >= rc->rc_maxrow) 348 rc->rc_row = rc->rc_maxrow - 1; 349 break; 350 351 case 'C': 352 /* Cursor Forward (CUF) */ 353 rc->rc_col += rc->rc_p0; 354 if (rc->rc_col >= rc->rc_maxcol) 355 rc->rc_col = rc->rc_maxcol - 1; 356 break; 357 358 case 'D': 359 /* Cursor Backward (CUB) */ 360 if (rc->rc_col >= rc->rc_p0) 361 rc->rc_col -= rc->rc_p0; 362 else 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 = MIN(MAX(rc->rc_p1, 1), rc->rc_maxcol) - 1; 379 rc->rc_row = MIN(MAX(rc->rc_p0, 1), rc->rc_maxrow) - 1; 380 break; 381 382 case 'J': 383 /* Erase in Display (ED) */ 384 rcons_clear2eop(rc); 385 break; 386 387 case 'K': 388 /* Erase in Line (EL) */ 389 rcons_clear2eol(rc); 390 break; 391 392 case 'L': 393 /* Insert Line (IL) */ 394 rcons_insertline(rc, rc->rc_p0); 395 break; 396 397 case 'M': 398 /* Delete Line (DL) */ 399 rcons_delline(rc, rc->rc_p0); 400 break; 401 402 case 'P': 403 /* Delete Character (DCH) */ 404 rcons_delchar(rc, rc->rc_p0); 405 break; 406 407 case 'm': 408 /* Select Graphic Rendition (SGR) */ 409 /* (defaults to zero) */ 410 if (rc->rc_bits & FB_P0_DEFAULT) 411 rc->rc_p0 = 0; 412 413 if (rc->rc_bits & FB_P1_DEFAULT) 414 rc->rc_p1 = 0; 415 416 rcons_sgresc(rc, rc->rc_p0); 417 418 if (rc->rc_bits & FB_P1) 419 rcons_sgresc(rc, rc->rc_p1); 420 421 break; 422 423 /* 424 * XXX: setting SUNBOW and SUNWOB should probably affect 425 * deffgcolor, defbgcolor and defattr too. 426 */ 427 case 'p': 428 /* Black On White (SUNBOW) */ 429 rcons_setcolor(rc, WSCOL_BLACK, WSCOL_WHITE); 430 break; 431 432 case 'q': 433 /* White On Black (SUNWOB) */ 434 rcons_setcolor(rc, WSCOL_WHITE, WSCOL_BLACK); 435 break; 436 437 case 'r': 438 /* Set scrolling (SUNSCRL) */ 439 /* (defaults to zero) */ 440 if (rc->rc_bits & FB_P0_DEFAULT) 441 rc->rc_p0 = 0; 442 /* XXX not implemented yet */ 443 rc->rc_scroll = rc->rc_p0; 444 break; 445 446 case 's': 447 /* Reset terminal emulator (SUNRESET) */ 448 rc->rc_wsflg = 0; 449 rc->rc_scroll = 0; 450 rc->rc_bits &= ~FB_NO_CURSOR; 451 rc->rc_fgcolor = rc->rc_deffgcolor; 452 rc->rc_bgcolor = rc->rc_defbgcolor; 453 rc->rc_attr = rc->rc_defattr; 454 455 if (rc->rc_bits & FB_INVERT) 456 rcons_invert(rc, 0); 457 break; 458 #ifdef notyet 459 /* 460 * XXX following two read \E[?25h and \E[?25l. rcons 461 * can't currently handle the '?'. 462 */ 463 case 'h': 464 /* Normal/very visible cursor */ 465 if (rc->rc_p0 == 25) { 466 rc->rc_bits &= ~FB_NO_CURSOR; 467 468 if (rc->rc_bits & FB_CURSOR) { 469 rc->rc_bits ^= FB_CURSOR; 470 rcons_cursor(rc); 471 } 472 } 473 break; 474 475 case 'l': 476 /* Invisible cursor */ 477 if (rc->rc_p0 == 25 && (rc->rc_bits & FB_NO_CURSOR) == 0) { 478 if (rc->rc_bits & FB_CURSOR) 479 rcons_cursor(rc); 480 481 rc->rc_bits |= FB_NO_CURSOR; 482 } 483 break; 484 #endif 485 } 486 } 487 488 /* Set ANSI colors */ 489 void 490 rcons_setcolor(rc, fg, bg) 491 struct rconsole *rc; 492 int fg, bg; 493 { 494 int flg; 495 496 if (fg > WSCOL_WHITE || fg < 0) 497 return; 498 499 if (bg > WSCOL_WHITE || bg < 0) 500 return; 501 502 #ifdef RASTERCONS_WONB 503 flg = bg; 504 bg = fg; 505 fg = flg; 506 #endif 507 508 /* Emulate WSATTR_REVERSE attribute if it's not supported */ 509 if ((rc->rc_wsflg & WSATTR_REVERSE) && 510 !(rc->rc_supwsflg & WSATTR_REVERSE)) { 511 flg = bg; 512 bg = fg; 513 fg = flg; 514 } 515 516 /* 517 * Mask out unsupported flags and get attribute 518 * XXX - always ask for WSCOLORS if supported (why shouldn't we?) 519 */ 520 flg = (rc->rc_wsflg | WSATTR_WSCOLORS) & rc->rc_supwsflg; 521 rc->rc_bgcolor = bg; 522 rc->rc_fgcolor = fg; 523 rc->rc_ops->allocattr(rc->rc_cookie, fg, bg, flg, &rc->rc_attr); 524 } 525 526 527 /* Actually write a string to the frame buffer */ 528 void 529 rcons_text(rc, str, n) 530 struct rconsole *rc; 531 const unsigned char *str; 532 int n; 533 { 534 u_int uc; 535 536 while (n--) { 537 uc = rc->rc_charmap[*str++ & 255]; 538 rc->rc_ops->putchar(rc->rc_cookie, rc->rc_row, rc->rc_col++, 539 uc, rc->rc_attr); 540 } 541 542 if (rc->rc_col >= rc->rc_maxcol) { 543 rc->rc_col = 0; 544 rc->rc_row++; 545 } 546 547 if (rc->rc_row >= rc->rc_maxrow) 548 rcons_scroll(rc, 1); 549 } 550 551 /* Paint (or unpaint) the cursor */ 552 void 553 rcons_cursor(rc) 554 struct rconsole *rc; 555 { 556 rc->rc_bits ^= FB_CURSOR; 557 558 if (rc->rc_bits & FB_NO_CURSOR) 559 return; 560 561 rc->rc_ops->cursor(rc->rc_cookie, rc->rc_bits & FB_CURSOR, 562 rc->rc_row, rc->rc_col); 563 } 564 565 /* Possibly change to SUNWOB or SUNBOW mode */ 566 void 567 rcons_invert(rc, wob) 568 struct rconsole *rc; 569 int wob; 570 { 571 572 rc->rc_bits ^= FB_INVERT; 573 /* XXX how do we do we invert the framebuffer?? */ 574 } 575 576 /* Clear to the end of the page */ 577 void 578 rcons_clear2eop(rc) 579 struct rconsole *rc; 580 { 581 if (rc->rc_col || rc->rc_row) { 582 rcons_clear2eol(rc); 583 584 if (rc->rc_row < (rc->rc_maxrow - 1)) 585 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_row + 1, 586 rc->rc_maxrow, rc->rc_attr); 587 } else 588 rc->rc_ops->eraserows(rc->rc_cookie, 0, rc->rc_maxrow, 589 rc->rc_attr); 590 } 591 592 /* Clear to the end of the line */ 593 void 594 rcons_clear2eol(rc) 595 struct rconsole *rc; 596 { 597 rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, rc->rc_col, 598 rc->rc_maxcol - rc->rc_col, rc->rc_attr); 599 } 600 601 602 /* Scroll up */ 603 void 604 rcons_scroll(rc, n) 605 struct rconsole *rc; 606 int n; 607 { 608 /* Can't scroll more than the whole screen */ 609 if (n > rc->rc_maxrow) 610 n = rc->rc_maxrow; 611 612 /* Calculate new row */ 613 if (rc->rc_row >= n) 614 rc->rc_row -= n; 615 else 616 rc->rc_row = 0; 617 618 rc->rc_ops->copyrows(rc->rc_cookie, n, 0, rc->rc_maxrow - n); 619 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_maxrow - n, n, rc->rc_attr); 620 } 621 622 /* Delete characters */ 623 void 624 rcons_delchar(rc, n) 625 struct rconsole *rc; 626 int n; 627 { 628 /* Can't delete more chars than there are */ 629 if (n > rc->rc_maxcol - rc->rc_col) 630 n = rc->rc_maxcol - rc->rc_col; 631 632 rc->rc_ops->copycols(rc->rc_cookie, rc->rc_row, rc->rc_col + n, 633 rc->rc_col, rc->rc_maxcol - rc->rc_col - n); 634 635 rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, 636 rc->rc_maxcol - n, n, rc->rc_attr); 637 } 638 639 /* Delete a number of lines */ 640 void 641 rcons_delline(rc, n) 642 struct rconsole *rc; 643 int n; 644 { 645 /* Can't delete more lines than there are */ 646 if (n > rc->rc_maxrow - rc->rc_row) 647 n = rc->rc_maxrow - rc->rc_row; 648 649 rc->rc_ops->copyrows(rc->rc_cookie, rc->rc_row + n, rc->rc_row, 650 rc->rc_maxrow - rc->rc_row - n); 651 652 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_maxrow - n, n, 653 rc->rc_attr); 654 } 655 656 /* Insert some characters */ 657 void 658 rcons_insertchar(rc, n) 659 struct rconsole *rc; 660 int n; 661 { 662 /* Can't insert more chars than can fit */ 663 if (n > rc->rc_maxcol - rc->rc_col) 664 n = rc->rc_maxcol - rc->rc_col - 1; 665 666 rc->rc_ops->copycols(rc->rc_cookie, rc->rc_row, rc->rc_col, 667 rc->rc_col + n, rc->rc_maxcol - rc->rc_col - n - 1); 668 669 rc->rc_ops->erasecols(rc->rc_cookie, rc->rc_row, rc->rc_col, 670 n, rc->rc_attr); 671 } 672 673 /* Insert some lines */ 674 void 675 rcons_insertline(rc, n) 676 struct rconsole *rc; 677 int n; 678 { 679 /* Can't insert more lines than can fit */ 680 if (n > rc->rc_maxrow - rc->rc_row) 681 n = rc->rc_maxrow - rc->rc_row; 682 683 rc->rc_ops->copyrows(rc->rc_cookie, rc->rc_row, rc->rc_row + n, 684 rc->rc_maxrow - rc->rc_row - n); 685 686 rc->rc_ops->eraserows(rc->rc_cookie, rc->rc_row, n, 687 rc->rc_attr); 688 } 689 690 /* end of rcons_subr.c */ 691
Indexes created Mon Oct 13 08:09:50 GMT 2025