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1.1 ! root 1: /* (-lgl ! 2: * COHERENT Driver Kit Version 1.1.0 ! 3: * Copyright (c) 1982, 1990 by Mark Williams Company. ! 4: * All rights reserved. May not be copied without permission. ! 5: -lgl) */ ! 6: /* ! 7: * Keyboard/display driver. ! 8: * Coherent, IBM PC/XT/AT. ! 9: */ ! 10: #include <sys/coherent.h> ! 11: #include <sys/i8086.h> ! 12: #include <sys/con.h> ! 13: #include <sys/devices.h> ! 14: #include <errno.h> ! 15: #include <sys/stat.h> ! 16: #include <sys/tty.h> ! 17: #include <sys/uproc.h> ! 18: #include <signal.h> ! 19: #include <sys/sched.h> ! 20: ! 21: #define SPC 0376 /* Special encoding */ ! 22: #define XXX 0377 /* Non-character */ ! 23: #define KBDATA 0x60 /* Keyboard data */ ! 24: #define KBCTRL 0x61 /* Keyboard control */ ! 25: #define KBFLAG 0x80 /* Keyboard reset flag */ ! 26: #define LEDCMD 0xED /* status indicator command */ ! 27: #define KBACK 0xFA /* status indicator acknowledge */ ! 28: #define EXTENDED1 0xE1 /* extended key seq initiator */ ! 29: ! 30: #define KEYUP 0x80 /* Key up change */ ! 31: #define KEYSC 0x7F /* Key scan code mask */ ! 32: #define LSHIFT 0x2A-1 /* Left shift key */ ! 33: #define LSHIFTA 0x2B-1 /* Alternate left-shift key */ ! 34: #define RSHIFT 0x36-1 /* Right shift key */ ! 35: #define CTRL 0x1D-1 /* Control key */ ! 36: /*-- #define CAPLOCK 0x1D-1 --*/ /* Control key */ ! 37: #define ALT 0x38-1 /* Alt key */ ! 38: #define CAPLOCK 0x3A-1 /* Caps lock key */ ! 39: /*-- #define CTRL 0x3A-1 --*/ /* Caps lock key */ ! 40: #define NUMLOCK 0x45-1 /* Numeric lock key */ ! 41: #define DELETE 0x53-1 /* Del, as in CTRL-ALT-DEL */ ! 42: #define BACKSP 0x0E-1 /* Back space */ ! 43: #define SCRLOCK 0x46-1 /* Scroll lock */ ! 44: ! 45: /* Shift flags */ ! 46: #define SRS 0x01 /* Right shift key on */ ! 47: #define SLS 0x02 /* Left shift key on */ ! 48: #define CTS 0x04 /* Ctrl key on */ ! 49: #define ALS 0x08 /* Alt key on */ ! 50: #define CPLS 0x10 /* Caps lock on */ ! 51: #define NMLS 0x20 /* Num lock on */ ! 52: #define AKPS 0x40 /* Alternate keypad shift */ ! 53: #define SHFT 0x80 /* Shift key flag */ ! 54: ! 55: /* Function key information */ ! 56: #define NFKEY 20 /* Number of settable functions */ ! 57: #define NFCHAR 150 /* Number of characters settable */ ! 58: #define NFBUF (NFKEY*2+NFCHAR+1) /* Size of buffer */ ! 59: ! 60: /* ! 61: * Functions. ! 62: */ ! 63: int isrint(); ! 64: int istime(); ! 65: void isbatch(); ! 66: int mmstart(); ! 67: int isopen(); ! 68: int isclose(); ! 69: int isread(); ! 70: int mmwrite(); ! 71: int isioctl(); ! 72: void mmwatch(); ! 73: int isload(); ! 74: int isuload(); ! 75: int ispoll(); ! 76: int nulldev(); ! 77: int nonedev(); ! 78: ! 79: /* ! 80: * Configuration table. ! 81: */ ! 82: CON iscon ={ ! 83: DFCHR|DFPOL, /* Flags */ ! 84: KB_MAJOR, /* Major index */ ! 85: isopen, /* Open */ ! 86: isclose, /* Close */ ! 87: nulldev, /* Block */ ! 88: isread, /* Read */ ! 89: mmwrite, /* Write */ ! 90: isioctl, /* Ioctl */ ! 91: nulldev, /* Powerfail */ ! 92: mmwatch, /* Timeout */ ! 93: isload, /* Load */ ! 94: isuload, /* Unload */ ! 95: ispoll /* Poll */ ! 96: }; ! 97: ! 98: /* ! 99: * Flag indicating turbo machine. ! 100: */ ! 101: int isturbo = 0; ! 102: ! 103: /* ! 104: * Terminal structure. ! 105: */ ! 106: TTY istty = { ! 107: {0}, {0}, 0, mmstart, NULL, 0, 0 ! 108: }; ! 109: ! 110: /* ! 111: * State variables. ! 112: */ ! 113: int islock; /* Keyboard locked flag */ ! 114: int isbusy; /* Raw input conversion busy */ ! 115: static char shift; /* Overall shift state */ ! 116: static char scroll; /* Scroll lock state */ ! 117: static char lshift = LSHIFT; /* Left shift alternate state */ ! 118: static char isfbuf[NFBUF]; /* Function key values */ ! 119: static char *isfval[NFKEY]; /* Function key string pointers */ ! 120: static int ledcmd; /* LED update command flag */ ! 121: static int extended; /* extended key scan count */ ! 122: ! 123: /* ! 124: * Tables for converting key code to ASCII. ! 125: * lmaptab specifies unshifted conversion, ! 126: * umaptab specifies shifted conversion, ! 127: * smaptab specifies the shift states which are active. ! 128: * An entry of XXX says the key is dead. ! 129: * An entry of SPC requires further processing. ! 130: * ! 131: * Key codes: ! 132: * ESC .. <- == 1 .. 14 ! 133: * -> .. \n == 15 .. 28 ! 134: * CTRL .. ` == 29 .. 41 ! 135: * ^Shift .. PrtSc == 42 .. 55 ! 136: * ALT .. CapsLock == 56 .. 58 ! 137: * F1 .. F10 == 59 .. 68 ! 138: * NumLock .. Del == 69 .. 83 ! 139: */ ! 140: static unsigned char lmaptab[] ={ ! 141: '\33', '1', '2', '3', '4', '5', '6', /* 1 - 7 */ ! 142: '7', '8', '9', '0', '-', '=', '\b', '\t', /* 8 - 15 */ ! 143: 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* 16 - 23 */ ! 144: 'o', 'p', '[', ']', '\r', XXX, 'a', 's', /* 24 - 31 */ ! 145: 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 32 - 39 */ ! 146: '\'', '`', XXX, '\\', 'z', 'x', 'c', 'v', /* 40 - 47 */ ! 147: 'b', 'n', 'm', ',', '.', '/', XXX, '*', /* 48 - 55 */ ! 148: XXX, ' ', XXX, SPC, SPC, SPC, SPC, SPC, /* 56 - 63 */ ! 149: SPC, SPC, SPC, SPC, SPC, SPC, SPC, SPC, /* 64 - 71 */ ! 150: SPC, SPC, '-', SPC, SPC, SPC, '+', SPC, /* 72 - 79 */ ! 151: SPC, SPC, SPC, SPC /* 80 - 83 */ ! 152: }; ! 153: ! 154: static unsigned char umaptab[] ={ ! 155: '\33', '!', '@', '#', '$', '%', '^', /* 1 - 7 */ ! 156: '&', '*', '(', ')', '_', '+', '\b', SPC, /* 8 - 15 */ ! 157: 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', /* 16 - 23 */ ! 158: 'O', 'P', '{', '}', '\r', XXX, 'A', 'S', /* 24 - 31 */ ! 159: 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* 32 - 39 */ ! 160: '"', '~', XXX, '|', 'Z', 'X', 'C', 'V', /* 40 - 47 */ ! 161: 'B', 'N', 'M', '<', '>', '?', XXX, '*', /* 48 - 55 */ ! 162: XXX, ' ', XXX, SPC, SPC, SPC, SPC, SPC, /* 56 - 63 */ ! 163: SPC, SPC, SPC, SPC, SPC, SPC, SPC, SPC, /* 64 - 71 */ ! 164: SPC, SPC, '-', SPC, SPC, SPC, '+', SPC, /* 72 - 79 */ ! 165: SPC, SPC, SPC, SPC /* 80 - 83 */ ! 166: }; ! 167: ! 168: #define SS0 0 /* No shift */ ! 169: #define SS1 (SLS|SRS|CTS) /* Shift, Ctrl */ ! 170: #define SES (SLS|SRS) /* Shift */ ! 171: #define LET (SLS|SRS|CPLS|CTS) /* Shift, Caps, Ctrl */ ! 172: #define KEY (SLS|SRS|NMLS|AKPS) /* Shift, Num, Alt keypad */ ! 173: ! 174: static unsigned char smaptab[] ={ ! 175: SS0, SES, SS1, SES, SES, SES, SS1, /* 1 - 7 */ ! 176: SES, SES, SES, SES, SS1, SES, CTS, SES, /* 8 - 15 */ ! 177: LET, LET, LET, LET, LET, LET, LET, LET, /* 16 - 23 */ ! 178: LET, LET, SS1, SS1, CTS, SHFT, LET, LET, /* 24 - 31 */ ! 179: LET, LET, LET, LET, LET, LET, LET, SES, /* 32 - 39 */ ! 180: SES, SS1, SHFT, SS1, LET, LET, LET, LET, /* 40 - 47 */ ! 181: LET, LET, LET, SES, SES, SES, SHFT, SES, /* 48 - 55 */ ! 182: SHFT, SS1, SHFT, SS0, SS0, SS0, SS0, SS0, /* 56 - 63 */ ! 183: SS0, SS0, SS0, SS0, SS0, SHFT, KEY, KEY, /* 64 - 71 */ ! 184: KEY, KEY, SS0, KEY, KEY, KEY, SS0, KEY, /* 72 - 79 */ ! 185: KEY, KEY, KEY, KEY /* 80 - 83 */ ! 186: }; ! 187: ! 188: /* ! 189: * Load entry point. ! 190: * Do reset the keyboard because it gets terribly munged ! 191: * if you type during the boot. ! 192: */ ! 193: isload() ! 194: { ! 195: register int i; ! 196: ! 197: /* ! 198: * Reset keyboard if NOT an XT turbo. ! 199: */ ! 200: if ( ! isturbo ) { ! 201: outb(KBCTRL, 0x0C); /* Clock low */ ! 202: for (i = 10582; --i >= 0; ); /* For 20ms */ ! 203: outb(KBCTRL, 0xCC); /* Clock high */ ! 204: for (i = 0; --i != 0; ) ! 205: ; ! 206: i = inb(KBDATA); ! 207: outb(KBCTRL, 0xCC); /* Clear keyboard */ ! 208: outb(KBCTRL, 0x4D); /* Enable keyboard */ ! 209: } ! 210: ! 211: /* ! 212: * Enable mmwatch() invocation every second. ! 213: */ ! 214: drvl[KB_MAJOR].d_time = 1; ! 215: ! 216: /* ! 217: * Seize keyboard interrupt. ! 218: */ ! 219: setivec(1, isrint); ! 220: ! 221: /* ! 222: * Initiailize video display. ! 223: */ ! 224: mmstart( &istty ); ! 225: } ! 226: ! 227: /* ! 228: * Unload entry point. ! 229: */ ! 230: isuload() ! 231: { ! 232: clrivec(1); ! 233: } ! 234: ! 235: /* ! 236: * Default function key strings (terminated by -1 [\377]) ! 237: */ ! 238: static char *deffuncs[] = { ! 239: "\33[1x\377", /* F1 */ ! 240: "\33[2x\377", /* F2 */ ! 241: "\33[3x\377", /* F3 */ ! 242: "\33[4x\377", /* F4 */ ! 243: "\33[5x\377", /* F5 */ ! 244: "\33[6x\377", /* F6 */ ! 245: "\33[7x\377", /* F7 */ ! 246: "\33[8x\377", /* F8 */ ! 247: "\33[9x\377", /* F9 */ ! 248: "\33[0x\377", /* F10 - historical value */ ! 249: "\33[1y\377", /* F11 */ ! 250: "\33[2y\377", /* F12 */ ! 251: "\33[3y\377", /* F13 */ ! 252: "\33[4y\377", /* F14 */ ! 253: "\33[5y\377", /* F15 */ ! 254: "\33[6y\377", /* F16 */ ! 255: "\33[7y\377", /* F17 */ ! 256: "\33[8y\377", /* F18 */ ! 257: "\33[9y\377", /* F19 */ ! 258: "\33[0y\377" /* F20 */ ! 259: }; ! 260: ! 261: /* ! 262: * Open routine. ! 263: */ ! 264: isopen(dev) ! 265: dev_t dev; ! 266: { ! 267: register int s; ! 268: ! 269: if (minor(dev) != 0) { ! 270: u.u_error = ENXIO; ! 271: return; ! 272: } ! 273: if ((istty.t_flags&T_EXCL)!=0 && super()==0) { ! 274: u.u_error = ENODEV; ! 275: return; ! 276: } ! 277: ttsetgrp(&istty, dev); ! 278: ! 279: s = sphi(); ! 280: if (istty.t_open++ == 0) ! 281: { initkeys(); /* init function keys */ ! 282: istty.t_flags = T_CARR; /* indicate "carrier" */ ! 283: ttopen(&istty); ! 284: } ! 285: spl(s); ! 286: updleds(); /* update keyboard status LEDS */ ! 287: } ! 288: ! 289: /* Init function keys */ ! 290: initkeys() ! 291: { register int i; ! 292: register char *cp1, *cp2; ! 293: ! 294: for (i=0; i<NFKEY; i++) ! 295: isfval[i] = 0; /* clear function key buffer */ ! 296: cp2 = isfbuf; /* pointer to key buffer */ ! 297: for (i=0; i<NFKEY; i++) ! 298: { isfval[i] = cp2; /* save pointer to key string */ ! 299: cp1 = deffuncs[i]; /* get init string pointer */ ! 300: while ((*cp2++ = *cp1++) != -1) /* copy key data */ ! 301: if (cp2 >= &isfbuf[NFBUF-3]) /* overflow? */ ! 302: return; ! 303: } ! 304: } ! 305: ! 306: /* ! 307: * Close a tty. ! 308: */ ! 309: isclose(dev) ! 310: { ! 311: register int s; ! 312: ! 313: s = sphi(); ! 314: if (--istty.t_open == 0) ! 315: { s = sphi(); ! 316: ttclose(&istty); ! 317: spl(s); ! 318: } ! 319: } ! 320: ! 321: /* ! 322: * Read routine. ! 323: */ ! 324: isread(dev, iop) ! 325: dev_t dev; ! 326: IO *iop; ! 327: { ! 328: ttread(&istty, iop, 0); ! 329: if (istty.t_oq.cq_cc) ! 330: mmtime(&istty); ! 331: } ! 332: ! 333: /* ! 334: * Ioctl routine. ! 335: */ ! 336: isioctl(dev, com, vec) ! 337: dev_t dev; ! 338: struct sgttyb *vec; ! 339: { ! 340: register int s; ! 341: ! 342: switch(com) { ! 343: case TIOCSETF: ! 344: case TIOCGETF: ! 345: isfunction(com, (char *)vec); ! 346: return; ! 347: case TIOCSHIFT: /* switch left-SHIFT and "\" */ ! 348: lshift = LSHIFTA; /* alternate values */ ! 349: lmaptab[41] = '\\'; ! 350: lmaptab[42] = XXX; ! 351: umaptab[41] = '|'; ! 352: umaptab[42] = XXX; ! 353: smaptab[41] = SS1; ! 354: smaptab[42] = SHFT; ! 355: return; ! 356: case TIOCCSHIFT: /* normal (default) left-SHIFT and "\" */ ! 357: lshift = LSHIFT; /* normal values */ ! 358: lmaptab[41] = XXX; ! 359: lmaptab[42] = '\\'; ! 360: umaptab[41] = XXX; ! 361: umaptab[42] = '|'; ! 362: smaptab[41] = SHFT; ! 363: smaptab[42] = SS1; ! 364: return; ! 365: } ! 366: s = sphi(); ! 367: ttioctl(&istty, com, vec); ! 368: spl(s); ! 369: } ! 370: ! 371: /* ! 372: * Set and receive the function keys. ! 373: */ ! 374: isfunction(c, v) ! 375: int c; ! 376: char *v; ! 377: { ! 378: register char *cp; ! 379: register int i; ! 380: ! 381: if (c == TIOCGETF) { ! 382: for (cp = isfbuf; cp < &isfbuf[NFBUF]; cp++) ! 383: putubd(v++, *cp); ! 384: } else { ! 385: for (i=0; i<NFKEY; i++) /* zap current settings */ ! 386: isfval[i] = 0; ! 387: cp = isfbuf; /* pointer to key buffer */ ! 388: for (i=0; i<NFKEY; i++) { ! 389: isfval[i] = cp; /* save pointer to key string */ ! 390: while ((*cp++ = getubd(v++)) != -1) /* copy key data */ ! 391: if (cp >= &isfbuf[NFBUF-3]) /* overflow? */ ! 392: return; ! 393: } ! 394: } ! 395: } ! 396: ! 397: ! 398: /* ! 399: * Poll routine. ! 400: */ ! 401: ispoll( dev, ev, msec ) ! 402: dev_t dev; ! 403: int ev; ! 404: int msec; ! 405: { ! 406: /* ! 407: * Priority polls not supported. ! 408: */ ! 409: ev &= ~POLLPRI; ! 410: ! 411: /* ! 412: * Input poll failure. ! 413: */ ! 414: if ( (ev & POLLIN) && (istty.t_iq.cq_cc == 0) ) { ! 415: ! 416: if ( msec != 0 ) ! 417: pollopen( &istty.t_ipolls ); ! 418: ! 419: /* ! 420: * Second look AFTER enabling monitor, avoiding interrupt race. ! 421: */ ! 422: if ( istty.t_iq.cq_cc == 0 ) ! 423: ev &= ~POLLIN; ! 424: } ! 425: ! 426: return ev; ! 427: } ! 428: ! 429: /* ! 430: * Receive interrupt. ! 431: */ ! 432: isrint() ! 433: { ! 434: register int c; ! 435: register int s; ! 436: register int r; ! 437: int savests; ! 438: int update_leds = 0; ! 439: ! 440: /* ! 441: * Schedule raw input handler if not already active. ! 442: */ ! 443: if ( isbusy == 0 ) { ! 444: defer( isbatch, &istty ); ! 445: isbusy = 1; ! 446: } ! 447: ! 448: /* ! 449: * Pull character from the data ! 450: * port. Pulse the KBFLAG in the control ! 451: * port to reset the data buffer. ! 452: */ ! 453: r = inb(KBDATA) & 0xFF; ! 454: c = inb(KBCTRL); ! 455: outb(KBCTRL, c|KBFLAG); ! 456: outb(KBCTRL, c); ! 457: #if KBDEBUG ! 458: printf("kbd: %d\n", r); /* print scan code/direction */ ! 459: #endif ! 460: if (ledcmd) { ! 461: ledcmd = 0; ! 462: if (r == KBACK) { /* output to status LEDS */ ! 463: c = scroll & 1; ! 464: if (shift & NMLS) ! 465: c |= 2; ! 466: if (shift & CPLS) ! 467: c |= 4; ! 468: outb(KBDATA, c); ! 469: } ! 470: return; ! 471: } ! 472: if (extended > 0) { /* if multi-character seq, */ ! 473: --extended; /* ... ignore this char */ ! 474: return; ! 475: } ! 476: if (r == EXTENDED1) { /* ignore extended sequences */ ! 477: extended = 5; ! 478: return; ! 479: } ! 480: if (r == 0xFF) ! 481: return; /* Overrun */ ! 482: c = (r & KEYSC) - 1; ! 483: /* ! 484: * Check for reset. ! 485: */ ! 486: if ((r&KEYUP) == 0 && c == DELETE && (shift&(CTS|ALS)) == (CTS|ALS)) ! 487: boot(); ! 488: ! 489: /* ! 490: * Track "shift" keys. ! 491: */ ! 492: s = smaptab[c]; ! 493: if (s&SHFT) { ! 494: if (r&KEYUP) { /* "shift" released */ ! 495: if (c == RSHIFT) ! 496: shift &= ~SRS; ! 497: else if (c == lshift) ! 498: shift &= ~SLS; ! 499: else if (c == CTRL) ! 500: shift &= ~CTS; ! 501: else if (c == ALT) ! 502: shift &= ~ALS; ! 503: } else { /* "shift" pressed */ ! 504: if (c == lshift) ! 505: shift |= SLS; ! 506: else if (c == RSHIFT) ! 507: shift |= SRS; ! 508: else if (c == CTRL) ! 509: shift |= CTS; ! 510: else if (c == ALT) ! 511: shift |= ALS; ! 512: else if (c == CAPLOCK) { ! 513: shift ^= CPLS; /* toggle cap lock */ ! 514: updleds(); ! 515: } else if (c == NUMLOCK) { ! 516: shift ^= NMLS; /* toggle num lock */ ! 517: updleds(); ! 518: } ! 519: } ! 520: return; ! 521: } ! 522: ! 523: /* ! 524: * No other key up codes of interest. ! 525: */ ! 526: if (r&KEYUP) ! 527: return; ! 528: ! 529: /* ! 530: * If the tty is not open the character is ! 531: * just tossed away. ! 532: */ ! 533: if (istty.t_open == 0) ! 534: return; ! 535: ! 536: /* ! 537: * Map character, based on the ! 538: * current state of the shift, control, ! 539: * meta and lock flags. ! 540: */ ! 541: if (shift & CTS) { ! 542: if (s == CTS) /* Map Ctrl (BS | NL) */ ! 543: c = (c == BACKSP) ? 0x7F : 0x0A; ! 544: else if (s==SS1 || s==LET) /* Normal Ctrl map */ ! 545: c = umaptab[c]&0x1F; /* Clear bits 5-6 */ ! 546: else ! 547: return; /* Ignore this char */ ! 548: } else if (s &= shift) { ! 549: if (shift & SES) { /* if shift on */ ! 550: if (s & (CPLS|NMLS)) /* if caps/num lock */ ! 551: c = lmaptab[c]; /* use unshifted */ ! 552: else ! 553: c = umaptab[c]; /* use shifted */ ! 554: } else { /* if shift not on */ ! 555: if (s & (CPLS|NMLS)) /* if caps/num lock */ ! 556: c = umaptab[c]; /* use shifted */ ! 557: else ! 558: c = lmaptab[c]; /* use unshifted */ ! 559: } ! 560: } else ! 561: c = lmaptab[c]; /* use unshifted */ ! 562: ! 563: /* ! 564: * Act on character. ! 565: */ ! 566: if (c == XXX) ! 567: return; /* char to ignore */ ! 568: ! 569: if (c != SPC) { /* not special char? */ ! 570: if (shift & ALS) /* ALT (meta bit)? */ ! 571: c |= 0x80; /* set meta */ ! 572: isin(c); /* send the char */ ! 573: } else ! 574: update_leds += isspecial(r); /* special chars */ ! 575: if (update_leds) { ! 576: savests = sphi(); ! 577: outb(KBDATA, LEDCMD); ! 578: ledcmd = 1; ! 579: spl(savests); ! 580: } ! 581: } ! 582: ! 583: /* ! 584: * Handle special input sequences. ! 585: * The character passed is the key number. ! 586: * ! 587: * The keypad is translated by the following table, ! 588: * the first entry is the normal sequence, the second the shifted, ! 589: * and the third the alternate keypad sequence. ! 590: */ ! 591: static char *keypad[][3] = { ! 592: { "\33[H", "7", "\33?w" }, /* 71 */ ! 593: { "\33[A", "8", "\33?x" }, /* 72 */ ! 594: { "\33[V", "9", "\33?y" }, /* 73 */ ! 595: { "\33[D", "4", "\33?t" }, /* 75 */ ! 596: { "\0337", "5", "\33?u" }, /* 76 */ ! 597: { "\33[C", "6", "\33?v" }, /* 77 */ ! 598: { "\33[24H","1", "\33?q" }, /* 79 */ ! 599: { "\33[B", "2", "\33?r" }, /* 80 */ ! 600: { "\33[U", "3", "\33?s" }, /* 81 */ ! 601: { "\33[@", "0", "\33?p" }, /* 82 */ ! 602: { "\33[P", ".", "\33?n" } /* 83 */ ! 603: }; ! 604: ! 605: isspecial(c) ! 606: int c; ! 607: { ! 608: register char *cp; ! 609: register int s; ! 610: int update_leds = 0; ! 611: ! 612: cp = 0; ! 613: ! 614: switch (c) { ! 615: case 15: /* cursor back tab */ ! 616: cp = "\033[Z"; ! 617: break; ! 618: case 59: case 60: case 61: case 62: case 63: /* Function keys */ ! 619: case 64: case 65: case 66: case 67: case 68: ! 620: /* offset to function string */ ! 621: if ( shift & ALS ) ! 622: cp = isfval[c-49]; ! 623: else ! 624: cp = isfval[c-59]; ! 625: break; ! 626: ! 627: case 70: /* Scroll Lock -- stop/start output */ ! 628: { ! 629: static char cbuf[2]; ! 630: ! 631: cp = &cbuf[0]; /* working buffer */ ! 632: if (!(istty.t_sgttyb.sg_flags&RAWIN)) { /* not if in RAW mode */ ! 633: ++update_leds; ! 634: if (istty.t_flags & T_STOP) { /* output stopped? */ ! 635: cbuf[0] = istty.t_tchars.t_startc; /* start it */ ! 636: scroll = 0; ! 637: } else { ! 638: cbuf[0] = istty.t_tchars.t_stopc; /* stop output */ ! 639: scroll = 1; ! 640: } ! 641: } ! 642: break; ! 643: } ! 644: ! 645: case 79: /* 1/End */ ! 646: case 80: /* 2/DOWN */ ! 647: case 81: /* 3/PgDn */ ! 648: case 82: /* 0/Ins */ ! 649: case 83: /* ./Del */ ! 650: --c; /* adjust code */ ! 651: case 75: /* 4/LEFT */ ! 652: case 76: /* 5 */ ! 653: case 77: /* 6/RIGHT */ ! 654: --c; /* adjust code */ ! 655: case 71: /* 7/Home/Clear */ ! 656: case 72: /* 8/UP */ ! 657: case 73: /* 9/PgUp */ ! 658: s = 0; /* start off with normal keypad */ ! 659: if (shift&NMLS) /* num lock? */ ! 660: s = 1; /* set shift pad */ ! 661: if (shift&SES) /* shift? */ ! 662: s ^= 1; /* toggle shift pad */ ! 663: if (shift&AKPS) /* alternate pad? */ ! 664: s = 2; /* set alternate pad */ ! 665: cp = keypad[c-71][s]; /* get keypad value */ ! 666: break; ! 667: } ! 668: if (cp) /* send string */ ! 669: while ((*cp != 0) && (*cp != -1)) ! 670: isin( *cp++ & 0377 ); ! 671: return update_leds; ! 672: } ! 673: ! 674: /** ! 675: * ! 676: * void ! 677: * ismmfunc( c ) -- process keyboard related output escape sequences ! 678: * char c; ! 679: */ ! 680: void ! 681: ismmfunc(c) ! 682: register int c; ! 683: { ! 684: switch (c) { ! 685: case 't': /* Enter numlock */ ! 686: shift |= NMLS; ! 687: updleds(); /* update LED status */ ! 688: break; ! 689: case 'u': /* Leave numlock */ ! 690: shift &= ~NMLS; ! 691: updleds(); /* update LED status */ ! 692: break; ! 693: case '=': /* Enter alternate keypad */ ! 694: shift |= AKPS; ! 695: break; ! 696: case '>': /* Exit alternate keypad */ ! 697: shift &= ~AKPS; ! 698: break; ! 699: case 'c': /* Reset terminal */ ! 700: islock = 0; ! 701: shift = 0; ! 702: initkeys(); ! 703: updleds(); /* update LED status */ ! 704: break; ! 705: } ! 706: } ! 707: ! 708: /** ! 709: * ! 710: * void ! 711: * isin( c ) -- append character to raw input silo ! 712: * char c; ! 713: */ ! 714: static ! 715: isin( c ) ! 716: register int c; ! 717: { ! 718: /* ! 719: * Cache received character. ! 720: */ ! 721: istty.t_rawin.si_buf[ istty.t_rawin.si_ix ] = c; ! 722: ! 723: if ( ++istty.t_rawin.si_ix >= sizeof(istty.t_rawin.si_buf) ) ! 724: istty.t_rawin.si_ix = 0; ! 725: } ! 726: ! 727: /** ! 728: * ! 729: * void ! 730: * isbatch() -- raw input conversion routine ! 731: * ! 732: * Action: Enable the video display. ! 733: * Canonize the raw input silo. ! 734: * ! 735: * Notes: isbatch() was scheduled as a deferred process by isrint(). ! 736: */ ! 737: static void ! 738: isbatch( tp ) ! 739: register TTY * tp; ! 740: { ! 741: register int c; ! 742: static int lastc; ! 743: ! 744: /* ! 745: * Ensure video display is enabled. ! 746: */ ! 747: mm_von(); ! 748: ! 749: isbusy = 0; ! 750: ! 751: /* ! 752: * Process all cached characters. ! 753: */ ! 754: while ( tp->t_rawin.si_ix != tp->t_rawin.si_ox ) { ! 755: ! 756: /* ! 757: * Get next cached char. ! 758: */ ! 759: c = tp->t_rawin.si_buf[ tp->t_rawin.si_ox ]; ! 760: ! 761: if ( tp->t_rawin.si_ox >= sizeof(tp->t_rawin.si_buf) - 1 ) ! 762: tp->t_rawin.si_ox = 0; ! 763: else ! 764: tp->t_rawin.si_ox++; ! 765: ! 766: if ( (islock == 0) || ISINTR || ISQUIT ) { ! 767: ttin( tp, c ); ! 768: } ! 769: ! 770: else if ( (c == 'b') && (lastc == '\033') ) { ! 771: islock = 0; ! 772: ttin( tp, lastc ); ! 773: ttin( tp, c ); ! 774: } ! 775: ! 776: else if ( (c == 'c') && (lastc == '\033') ) { ! 777: ttin( tp, lastc ); ! 778: ttin( tp, c ); ! 779: } ! 780: ! 781: else ! 782: putchar('\007'); ! 783: ! 784: lastc = c; ! 785: } ! 786: } ! 787: ! 788: /* ! 789: * update the keyboard status LEDS ! 790: */ ! 791: updleds() ! 792: { ! 793: int s; ! 794: ! 795: s = sphi(); ! 796: outb(KBDATA, LEDCMD); ! 797: ledcmd = 1; ! 798: spl(s); ! 799: } ! 800: ! 801: /* ! 802: * unlock the scroll in case an interrupt character is received ! 803: */ ! 804: kbunscroll() ! 805: { ! 806: scroll = 0; ! 807: updleds(); ! 808: }
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