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1.1 ! root 1: /* ! 2: * Keyboard/display driver for German keyboard. ! 3: * Coherent, IBM PC/XT and AT (286 and 386). ! 4: */ ! 5: #include <sys/coherent.h> ! 6: #include <sys/i8086.h> ! 7: #include <sys/con.h> ! 8: #include <sys/devices.h> ! 9: #include <errno.h> ! 10: #include <sys/stat.h> ! 11: #include <sys/tty.h> ! 12: #include <sys/uproc.h> ! 13: #include <signal.h> ! 14: #include <sys/sched.h> ! 15: ! 16: #define SPC 0376 /* Special encoding */ ! 17: #define XXX 0377 /* Non-character */ ! 18: #define KBDATA 0x60 /* Keyboard data */ ! 19: #define KBCTRL 0x61 /* Keyboard control */ ! 20: #define KBFLAG 0x80 /* Keyboard reset flag */ ! 21: #define LEDCMD 0xED /* status indicator command */ ! 22: #define KBACK 0xFA /* status indicator acknowledge */ ! 23: #define EXTENDED0 0xE0 /* extended key seq initiator */ ! 24: #define EXTENDED1 0xE1 /* extended key seq initiator */ ! 25: ! 26: #define KEYUP 0x80 /* Key up change */ ! 27: #define KEYSC 0x7F /* Key scan code mask */ ! 28: #define LSHIFT 0x2A-1 /* Left shift key */ ! 29: #define LSHIFTA 0x2B-1 /* Alternate left-shift key */ ! 30: #define RSHIFT 0x36-1 /* Right shift key */ ! 31: #define CTRL 0x1D-1 /* Control key */ ! 32: /*-- #define CAPLOCK 0x1D-1 --*/ /* Control key */ ! 33: #define ALT 0x38-1 /* ALT key or ALT GR */ ! 34: #define CAPLOCK 0x3A-1 /* Caps lock key */ ! 35: /*-- #define CTRL 0x3A-1 --*/ /* Caps lock key */ ! 36: #define NUMLOCK 0x45-1 /* Numeric lock key */ ! 37: #define DELETE 0x53-1 /* Del, as in CTRL-ALT-DEL */ ! 38: #define BACKSP 0x0E-1 /* Back space */ ! 39: #define SCRLOCK 0x46-1 /* Scroll lock */ ! 40: ! 41: /* Shift flags */ ! 42: #define SRS 0x01 /* Right shift key on */ ! 43: #define SLS 0x02 /* Left shift key on */ ! 44: #define CTS 0x04 /* Ctrl key on */ ! 45: #define ALS 0x08 /* Alt key on */ ! 46: #define CPLS 0x10 /* Caps lock on */ ! 47: #define NMLS 0x20 /* Num lock on */ ! 48: #define AKPS 0x40 /* Alternate keypad shift */ ! 49: #define SHFT 0x80 /* Shift key flag */ ! 50: #define AGS 0x100 /* Alt Graphics on */ ! 51: ! 52: /* Function key information */ ! 53: #define NFKEY 20 /* Number of settable functions */ ! 54: #define NFCHAR 150 /* Number of characters settable */ ! 55: #define NFBUF (NFKEY*2+NFCHAR+1) /* Size of buffer */ ! 56: ! 57: /* ! 58: * Functions. ! 59: */ ! 60: int isrint(); ! 61: int istime(); ! 62: void isbatch(); ! 63: int mmstart(); ! 64: int isopen(); ! 65: int isclose(); ! 66: int isread(); ! 67: int mmwrite(); ! 68: int isioctl(); ! 69: void mmwatch(); ! 70: int isload(); ! 71: int isuload(); ! 72: int ispoll(); ! 73: int nulldev(); ! 74: int nonedev(); ! 75: ! 76: /* ! 77: * Configuration table. ! 78: */ ! 79: CON iscon ={ ! 80: DFCHR|DFPOL, /* Flags */ ! 81: KB_MAJOR, /* Major index */ ! 82: isopen, /* Open */ ! 83: isclose, /* Close */ ! 84: nulldev, /* Block */ ! 85: isread, /* Read */ ! 86: mmwrite, /* Write */ ! 87: isioctl, /* Ioctl */ ! 88: nulldev, /* Powerfail */ ! 89: mmwatch, /* Timeout */ ! 90: isload, /* Load */ ! 91: isuload, /* Unload */ ! 92: ispoll /* Poll */ ! 93: }; ! 94: ! 95: /* ! 96: * Flag indicating turbo machine. ! 97: */ ! 98: int isturbo = 0; ! 99: ! 100: /* ! 101: * Terminal structure. ! 102: */ ! 103: TTY istty = { ! 104: {0}, {0}, 0, mmstart, NULL, 0, 0 ! 105: }; ! 106: ! 107: /* ! 108: * State variables. ! 109: */ ! 110: int islock; /* Keyboard locked flag */ ! 111: int isbusy; /* Raw input conversion busy */ ! 112: static int shift; /* Overall shift state */ ! 113: static char scroll; /* Scroll lock state */ ! 114: static char lshift = LSHIFT; /* Left shift alternate state */ ! 115: static char isfbuf[NFBUF]; /* Function key values */ ! 116: static char *isfval[NFKEY]; /* Function key string pointers */ ! 117: static int ledcmd; /* LED update command flag */ ! 118: static char extended; /* extended key scan count */ ! 119: static char extmode; /* use extended mode for this key */ ! 120: static char ext0seen; /* 0xE0 prefix seen */ ! 121: ! 122: /* ! 123: * Tables for converting key code to ASCII. ! 124: * lmaptab specifies unshifted conversion, ! 125: * umaptab specifies shifted conversion, ! 126: * smaptab specifies the shift states which are active. ! 127: * An entry of XXX says the key is dead. ! 128: * An entry of SPC requires further processing. ! 129: * ! 130: * Key codes: ! 131: * ESC .. <- == 1 .. 14 ! 132: * -> .. \n == 15 .. 28 ! 133: * CTRL .. ` == 29 .. 41 ! 134: * ^Shift .. PrtSc == 42 .. 55 ! 135: * ALT .. CapsLock == 56 .. 58 ! 136: * F1 .. F10 == 59 .. 68 ! 137: * NumLock .. Del == 69 .. 83 ! 138: * ISO, F11, F12 == 86 .. 88 ! 139: */ ! 140: unsigned char agmaptab[] ={ /* Alt Gr */ ! 141: XXX, XXX,'\375','\374',XXX, XXX, XXX, /* 1 - 7 */ ! 142: '{', '[', ']', '}', '\\', XXX, XXX, XXX, /* 8 - 15 */ ! 143: '@', XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 16 - 23 */ ! 144: XXX, XXX, XXX, '~', XXX, XXX, XXX, XXX, /* 24 - 31 */ ! 145: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 32 - 39 */ ! 146: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 40 - 47 */ ! 147: XXX, XXX,'\346', XXX, XXX, XXX, XXX, XXX, /* 48 - 55 */ ! 148: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 56 - 63 */ ! 149: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 64 - 71 */ ! 150: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 72 - 79 */ ! 151: XXX, XXX, XXX, XXX, XXX, XXX, '|', XXX, /* 80 - 87 */ ! 152: XXX /* 88 */ ! 153: }; ! 154: ! 155: static unsigned char lmaptab[] ={ ! 156: '\33', '1', '2', '3', '4', '5', '6', /* 1 - 7 */ ! 157: '7', '8', '9', '0','\341','\'', '\b', '\t', /* 8 - 15 */ ! 158: 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* 16 - 23 */ ! 159: 'o', 'p','\201', '+', '\r', XXX, 'a', 's', /* 24 - 31 */ ! 160: 'd', 'f', 'g', 'h', 'j', 'k', 'l','\224', /* 32 - 39 */ ! 161: '\204','^', XXX, '#', 'y', 'x', 'c', 'v', /* 40 - 47 */ ! 162: 'b', 'n', 'm', ',', '.', SPC, XXX, SPC, /* 48 - 55 */ ! 163: XXX, ' ', XXX, SPC, SPC, SPC, SPC, SPC, /* 56 - 63 */ ! 164: SPC, SPC, SPC, SPC, SPC, SPC, SPC, SPC, /* 64 - 71 */ ! 165: SPC, SPC, '-', SPC, SPC, SPC, '+', SPC, /* 72 - 79 */ ! 166: SPC, SPC, SPC, SPC, XXX, XXX, '<', XXX, /* 80 - 87 */ ! 167: XXX /* 88 */ ! 168: }; ! 169: ! 170: static unsigned char umaptab[] ={ ! 171: '\33', '!', '"','\025', '$', '%', '&', /* 1 - 7 */ ! 172: '/', '(', ')', '=', '?', '`', '\b', SPC, /* 8 - 15 */ ! 173: 'Q', 'W', 'E', 'R', 'T', 'Z', 'U', 'I', /* 16 - 23 */ ! 174: 'O', 'P','\232', '*', '\r', XXX, 'A', 'S', /* 24 - 31 */ ! 175: 'D', 'F', 'G', 'H', 'J', 'K', 'L','\231', /* 32 - 39 */ ! 176: '\216','\370',XXX,'\'', 'Y', 'X', 'C', 'V', /* 40 - 47 */ ! 177: 'B', 'N', 'M', ';', ':', SPC, XXX, SPC, /* 48 - 55 */ ! 178: XXX, ' ', XXX, SPC, SPC, SPC, SPC, SPC, /* 56 - 63 */ ! 179: SPC, SPC, SPC, SPC, SPC, SPC, SPC, SPC, /* 64 - 71 */ ! 180: SPC, SPC, '-', SPC, SPC, SPC, '+', SPC, /* 72 - 79 */ ! 181: SPC, SPC, SPC, SPC, XXX, XXX, '>', XXX, /* 80 - 87 */ ! 182: XXX /* 88 */ ! 183: }; ! 184: ! 185: #define SS0 0 /* No shift */ ! 186: #define SS1 (SLS|SRS|CTS) /* Shift, Ctrl */ ! 187: #define SES (SLS|SRS) /* Shift */ ! 188: #define LET (SLS|SRS|CPLS|CTS) /* Shift, Caps, Ctrl */ ! 189: #define KEY (SLS|SRS|NMLS|AKPS) /* Shift, Num, Alt keypad */ ! 190: ! 191: static unsigned char smaptab[] ={ ! 192: SS0, SES, SS1, SES, SES, SES, SS1, /* 1 - 7 */ ! 193: SES, SES, SES, SES, SS1, SES, CTS, SES, /* 8 - 15 */ ! 194: LET, LET, LET, LET, LET, LET, LET, LET, /* 16 - 23 */ ! 195: LET, LET, SS1, SS1, CTS, SHFT, LET, LET, /* 24 - 31 */ ! 196: LET, LET, LET, LET, LET, LET, LET, SES, /* 32 - 39 */ ! 197: SES, SS1, SHFT, SS1, LET, LET, LET, LET, /* 40 - 47 */ ! 198: LET, LET, LET, SES, SES, SES, SHFT, SES, /* 48 - 55 */ ! 199: SHFT, SS1, SHFT, SS0, SS0, SS0, SS0, SS0, /* 56 - 63 */ ! 200: SS0, SS0, SS0, SS0, SS0, SHFT, KEY, KEY, /* 64 - 71 */ ! 201: KEY, KEY, SS0, KEY, KEY, KEY, SS0, KEY, /* 72 - 79 */ ! 202: KEY, KEY, KEY, KEY, SS0, SS0, SES, SS0, /* 80 - 87 */ ! 203: SS0 ! 204: }; ! 205: ! 206: /* ! 207: * Load entry point. ! 208: * Do reset the keyboard because it gets terribly munged ! 209: * if you type during the boot. ! 210: */ ! 211: isload() ! 212: { ! 213: register int i; ! 214: ! 215: /* ! 216: * Reset keyboard if NOT an XT turbo. ! 217: */ ! 218: if ( ! isturbo ) { ! 219: outb(KBCTRL, 0x0C); /* Clock low */ ! 220: for (i = 10582; --i >= 0; ); /* For 20ms */ ! 221: outb(KBCTRL, 0xCC); /* Clock high */ ! 222: for (i = 0; --i != 0; ) ! 223: ; ! 224: i = inb(KBDATA); ! 225: outb(KBCTRL, 0xCC); /* Clear keyboard */ ! 226: outb(KBCTRL, 0x4D); /* Enable keyboard */ ! 227: } ! 228: ! 229: /* ! 230: * Enable mmwatch() invocation every second. ! 231: */ ! 232: drvl[KB_MAJOR].d_time = 1; ! 233: ! 234: /* ! 235: * Seize keyboard interrupt. ! 236: */ ! 237: setivec(1, isrint); ! 238: ! 239: /* ! 240: * Initiailize video display. ! 241: */ ! 242: mmstart( &istty ); ! 243: } ! 244: ! 245: /* ! 246: * Unload entry point. ! 247: */ ! 248: isuload() ! 249: { ! 250: clrivec(1); ! 251: } ! 252: ! 253: /* ! 254: * Default function key strings (terminated by -1 [\377]) ! 255: */ ! 256: static char *deffuncs[] = { ! 257: "\33[1x\377", /* F1 */ ! 258: "\33[2x\377", /* F2 */ ! 259: "\33[3x\377", /* F3 */ ! 260: "\33[4x\377", /* F4 */ ! 261: "\33[5x\377", /* F5 */ ! 262: "\33[6x\377", /* F6 */ ! 263: "\33[7x\377", /* F7 */ ! 264: "\33[8x\377", /* F8 */ ! 265: "\33[9x\377", /* F9 */ ! 266: "\33[0x\377", /* F10 - historical value */ ! 267: "\33[1y\377", /* F11 */ ! 268: "\33[2y\377", /* F12 */ ! 269: "\33[3y\377", /* F13 */ ! 270: "\33[4y\377", /* F14 */ ! 271: "\33[5y\377", /* F15 */ ! 272: "\33[6y\377", /* F16 */ ! 273: "\33[7y\377", /* F17 */ ! 274: "\33[8y\377", /* F18 */ ! 275: "\33[9y\377", /* F19 */ ! 276: "\33[0y\377" /* F20 */ ! 277: }; ! 278: ! 279: /* ! 280: * Open routine. ! 281: */ ! 282: isopen(dev) ! 283: dev_t dev; ! 284: { ! 285: register int s; ! 286: ! 287: if (minor(dev) != 0) { ! 288: u.u_error = ENXIO; ! 289: return; ! 290: } ! 291: if ((istty.t_flags&T_EXCL)!=0 && super()==0) { ! 292: u.u_error = ENODEV; ! 293: return; ! 294: } ! 295: ttsetgrp(&istty, dev); ! 296: ! 297: s = sphi(); ! 298: if (istty.t_open++ == 0) ! 299: { initkeys(); /* init function keys */ ! 300: istty.t_flags = T_CARR; /* indicate "carrier" */ ! 301: ttopen(&istty); ! 302: } ! 303: spl(s); ! 304: updleds(); /* update keyboard status LEDS */ ! 305: } ! 306: ! 307: /* Init function keys */ ! 308: initkeys() ! 309: { register int i; ! 310: register char *cp1, *cp2; ! 311: ! 312: for (i=0; i<NFKEY; i++) ! 313: isfval[i] = 0; /* clear function key buffer */ ! 314: cp2 = isfbuf; /* pointer to key buffer */ ! 315: for (i=0; i<NFKEY; i++) ! 316: { isfval[i] = cp2; /* save pointer to key string */ ! 317: cp1 = deffuncs[i]; /* get init string pointer */ ! 318: while ((*cp2++ = *cp1++) != -1) /* copy key data */ ! 319: if (cp2 >= &isfbuf[NFBUF-3]) /* overflow? */ ! 320: return; ! 321: } ! 322: } ! 323: ! 324: /* ! 325: * Close a tty. ! 326: */ ! 327: isclose(dev) ! 328: { ! 329: register int s; ! 330: ! 331: s = sphi(); ! 332: if (--istty.t_open == 0) ! 333: { s = sphi(); ! 334: ttclose(&istty); ! 335: spl(s); ! 336: } ! 337: } ! 338: ! 339: /* ! 340: * Read routine. ! 341: */ ! 342: isread(dev, iop) ! 343: dev_t dev; ! 344: IO *iop; ! 345: { ! 346: ttread(&istty, iop, 0); ! 347: if (istty.t_oq.cq_cc) ! 348: mmtime(&istty); ! 349: } ! 350: ! 351: /* ! 352: * Ioctl routine. ! 353: */ ! 354: isioctl(dev, com, vec) ! 355: dev_t dev; ! 356: struct sgttyb *vec; ! 357: { ! 358: register int s; ! 359: ! 360: switch(com) { ! 361: case TIOCSETF: ! 362: case TIOCGETF: ! 363: isfunction(com, (char *)vec); ! 364: return; ! 365: case TIOCSHIFT: /* switch left-SHIFT and "\" */ ! 366: lshift = LSHIFTA; /* alternate values */ ! 367: lmaptab[41] = '\\'; ! 368: lmaptab[42] = XXX; ! 369: umaptab[41] = '|'; ! 370: umaptab[42] = XXX; ! 371: smaptab[41] = SS1; ! 372: smaptab[42] = SHFT; ! 373: return; ! 374: case TIOCCSHIFT: /* normal (default) left-SHIFT and "\" */ ! 375: lshift = LSHIFT; /* normal values */ ! 376: lmaptab[41] = XXX; ! 377: lmaptab[42] = '\\'; ! 378: umaptab[41] = XXX; ! 379: umaptab[42] = '|'; ! 380: smaptab[41] = SHFT; ! 381: smaptab[42] = SS1; ! 382: return; ! 383: } ! 384: s = sphi(); ! 385: ttioctl(&istty, com, vec); ! 386: spl(s); ! 387: } ! 388: ! 389: /* ! 390: * Set and receive the function keys. ! 391: */ ! 392: isfunction(c, v) ! 393: int c; ! 394: char *v; ! 395: { ! 396: register char *cp; ! 397: register int i; ! 398: ! 399: if (c == TIOCGETF) { ! 400: for (cp = isfbuf; cp < &isfbuf[NFBUF]; cp++) ! 401: putubd(v++, *cp); ! 402: } else { ! 403: for (i=0; i<NFKEY; i++) /* zap current settings */ ! 404: isfval[i] = 0; ! 405: cp = isfbuf; /* pointer to key buffer */ ! 406: for (i=0; i<NFKEY; i++) { ! 407: isfval[i] = cp; /* save pointer to key string */ ! 408: while ((*cp++ = getubd(v++)) != -1) /* copy key data */ ! 409: if (cp >= &isfbuf[NFBUF-3]) /* overflow? */ ! 410: return; ! 411: } ! 412: } ! 413: } ! 414: ! 415: ! 416: /* ! 417: * Poll routine. ! 418: */ ! 419: ispoll( dev, ev, msec ) ! 420: dev_t dev; ! 421: int ev; ! 422: int msec; ! 423: { ! 424: /* ! 425: * Priority polls not supported. ! 426: */ ! 427: ev &= ~POLLPRI; ! 428: ! 429: /* ! 430: * Input poll failure. ! 431: */ ! 432: if ( (ev & POLLIN) && (istty.t_iq.cq_cc == 0) ) { ! 433: ! 434: if ( msec != 0 ) ! 435: pollopen( &istty.t_ipolls ); ! 436: ! 437: /* ! 438: * Second look AFTER enabling monitor, avoiding interrupt race. ! 439: */ ! 440: if ( istty.t_iq.cq_cc == 0 ) ! 441: ev &= ~POLLIN; ! 442: } ! 443: ! 444: return ev; ! 445: } ! 446: ! 447: /* ! 448: * Receive interrupt. ! 449: */ ! 450: isrint() ! 451: { ! 452: register int c; ! 453: register int s; ! 454: register int r; ! 455: int savests; ! 456: int update_leds = 0; ! 457: ! 458: /* ! 459: * Schedule raw input handler if not already active. ! 460: */ ! 461: if ( isbusy == 0 ) { ! 462: defer( isbatch, &istty ); ! 463: isbusy = 1; ! 464: } ! 465: ! 466: /* ! 467: * Pull character from the data ! 468: * port. Pulse the KBFLAG in the control ! 469: * port to reset the data buffer. ! 470: */ ! 471: r = inb(KBDATA) & 0xFF; ! 472: c = inb(KBCTRL); ! 473: outb(KBCTRL, c|KBFLAG); ! 474: outb(KBCTRL, c); ! 475: #if 0 ! 476: printf("kbd: %x %s\n", r&0x7F, (r&KEYUP) ? "up" : "down"); ! 477: #endif ! 478: if (ledcmd) { ! 479: ledcmd = 0; ! 480: if (r == KBACK) { /* output to status LEDS */ ! 481: c = scroll & 1; ! 482: if (shift & NMLS) ! 483: c |= 2; ! 484: if (shift & CPLS) ! 485: c |= 4; ! 486: outb(KBDATA, c); ! 487: } ! 488: return; ! 489: } ! 490: if (extended > 0) { /* if multi-character seq, */ ! 491: --extended; /* ... ignore this char */ ! 492: return; ! 493: } ! 494: ! 495: switch (r) { ! 496: case EXTENDED0: /* 0xE0 prefix found */ ! 497: ext0seen = 1; ! 498: return; ! 499: case EXTENDED1: /* ignore extended sequences */ ! 500: extended = 5; ! 501: return; ! 502: case 0xFF: /* Overrun */ ! 503: return; ! 504: } ! 505: ! 506: if (ext0seen) { ! 507: ext0seen = 0; ! 508: extmode = 1; ! 509: } else ! 510: extmode = 0; ! 511: ! 512: c = (r & KEYSC) - 1; /* bias to internal format */ ! 513: ! 514: /* ! 515: * Check for reset. ! 516: */ ! 517: if ((r&KEYUP) == 0 && c == DELETE && (shift&(CTS|ALS)) == (CTS|ALS)) ! 518: boot(); ! 519: ! 520: /* ! 521: * Track "shift" keys. ! 522: */ ! 523: s = smaptab[c]; ! 524: if (s&SHFT) { ! 525: if (r&KEYUP) { /* "shift" released */ ! 526: if (c == RSHIFT) ! 527: shift &= ~SRS; ! 528: else if (c == lshift) ! 529: shift &= ~SLS; ! 530: else if (c == CTRL) ! 531: shift &= ~CTS; ! 532: else if (c == ALT) ! 533: shift &= extmode ? ~AGS : ~ALS; ! 534: } else { /* "shift" pressed */ ! 535: if (c == lshift) ! 536: shift |= SLS; ! 537: else if (c == RSHIFT) ! 538: shift |= SRS; ! 539: else if (c == CTRL) ! 540: shift |= CTS; ! 541: else if (c == ALT) ! 542: shift |= extmode ? AGS : ALS; ! 543: else if (c == CAPLOCK) { ! 544: shift ^= CPLS; /* toggle cap lock */ ! 545: updleds(); ! 546: } else if (c == NUMLOCK) { ! 547: shift ^= NMLS; /* toggle num lock */ ! 548: updleds(); ! 549: } ! 550: } ! 551: return; ! 552: } ! 553: ! 554: /* ! 555: * No other key up codes of interest. ! 556: */ ! 557: if (r&KEYUP) ! 558: return; ! 559: ! 560: /* ! 561: * If the tty is not open the character is ! 562: * just tossed away. ! 563: */ ! 564: if (istty.t_open == 0) ! 565: return; ! 566: ! 567: /* ! 568: * Map character, based on the ! 569: * current state of the shift, control, alt graphics, ! 570: * meta (ALT) and lock flags. ! 571: */ ! 572: if (shift & AGS) /* Alt Graphics ? */ ! 573: c = agmaptab[c]; ! 574: else if (shift & CTS) { ! 575: if (s == CTS) /* Map Ctrl (BS | NL) */ ! 576: c = (c == BACKSP) ? 0x7F : 0x0A; ! 577: else if (s==SS1 || s==LET) /* Normal Ctrl map */ ! 578: c = umaptab[c]&0x1F; /* Clear bits 5-6 */ ! 579: else ! 580: return; /* Ignore this char */ ! 581: } else if (s &= shift) { ! 582: if (shift & SES) { /* if shift on */ ! 583: if (s & (CPLS|NMLS)) /* if caps/num lock */ ! 584: c = lmaptab[c]; /* use unshifted */ ! 585: else ! 586: c = umaptab[c]; /* use shifted */ ! 587: } else { /* if shift not on */ ! 588: if (s & (CPLS|NMLS)) /* if caps/num lock */ ! 589: c = umaptab[c]; /* use shifted */ ! 590: else ! 591: c = lmaptab[c]; /* use unshifted */ ! 592: } ! 593: } else ! 594: c = lmaptab[c]; /* use unshifted */ ! 595: ! 596: /* ! 597: * Act on character. ! 598: */ ! 599: if (c == XXX) ! 600: return; /* char to ignore */ ! 601: ! 602: if (c != SPC) { /* not special char? */ ! 603: if (shift & ALS) /* ALT (meta bit)? */ ! 604: c |= 0x80; /* set meta */ ! 605: isin(c); /* send the char */ ! 606: } else ! 607: update_leds += isspecial(r); /* special chars */ ! 608: if (update_leds) { ! 609: savests = sphi(); ! 610: outb(KBDATA, LEDCMD); ! 611: ledcmd = 1; ! 612: spl(savests); ! 613: } ! 614: } ! 615: ! 616: /* ! 617: * Handle special input sequences. ! 618: * The character passed is the key number. ! 619: * ! 620: * The keypad is translated by the following table, ! 621: * the first entry is the normal sequence, the second the shifted, ! 622: * and the third the alternate keypad sequence. ! 623: */ ! 624: static char *keypad[][3] = { ! 625: { "\33[H", "7", "\33?w" }, /* 71 */ ! 626: { "\33[A", "8", "\33?x" }, /* 72 */ ! 627: { "\33[V", "9", "\33?y" }, /* 73 */ ! 628: { "\33[D", "4", "\33?t" }, /* 75 */ ! 629: { "\0337", "5", "\33?u" }, /* 76 */ ! 630: { "\33[C", "6", "\33?v" }, /* 77 */ ! 631: { "\33[24H","1", "\33?q" }, /* 79 */ ! 632: { "\33[B", "2", "\33?r" }, /* 80 */ ! 633: { "\33[U", "3", "\33?s" }, /* 81 */ ! 634: { "\33[@", "0", "\33?p" }, /* 82 */ ! 635: { "\33[P", ".", "\33?n" } /* 83 */ ! 636: }; ! 637: ! 638: isspecial(c) ! 639: int c; ! 640: { ! 641: register char *cp; ! 642: register int s; ! 643: int update_leds = 0; ! 644: ! 645: cp = 0; ! 646: ! 647: switch (c) { ! 648: case 15: /* cursor back tab */ ! 649: cp = "\033[Z"; ! 650: break; ! 651: case 53: ! 652: if (extmode) ! 653: cp = "/"; ! 654: else if (shift & SES) ! 655: cp = "_"; ! 656: else ! 657: cp = "-"; ! 658: break; ! 659: case 55: /* ignore PrtScr */ ! 660: if (!extmode) ! 661: cp = "*"; ! 662: break; ! 663: case 59: case 60: case 61: case 62: case 63: /* Function keys */ ! 664: case 64: case 65: case 66: case 67: case 68: ! 665: /* offset to function string */ ! 666: if ( shift & ALS ) ! 667: cp = isfval[c-49]; ! 668: else ! 669: cp = isfval[c-59]; ! 670: break; ! 671: ! 672: case 70: /* Scroll Lock -- stop/start output */ ! 673: { ! 674: static char cbuf[2]; ! 675: ! 676: cp = &cbuf[0]; /* working buffer */ ! 677: if (!(istty.t_sgttyb.sg_flags&RAWIN)) { /* not if in RAW mode */ ! 678: ++update_leds; ! 679: if (istty.t_flags & T_STOP) { /* output stopped? */ ! 680: cbuf[0] = istty.t_tchars.t_startc; /* start it */ ! 681: scroll = 0; ! 682: } else { ! 683: cbuf[0] = istty.t_tchars.t_stopc; /* stop output */ ! 684: scroll = 1; ! 685: } ! 686: } ! 687: break; ! 688: } ! 689: ! 690: case 79: /* 1/End */ ! 691: case 80: /* 2/DOWN */ ! 692: case 81: /* 3/PgDn */ ! 693: case 82: /* 0/Ins */ ! 694: case 83: /* ./Del */ ! 695: --c; /* adjust code */ ! 696: case 75: /* 4/LEFT */ ! 697: case 76: /* 5 */ ! 698: case 77: /* 6/RIGHT */ ! 699: --c; /* adjust code */ ! 700: case 71: /* 7/Home/Clear */ ! 701: case 72: /* 8/UP */ ! 702: case 73: /* 9/PgUp */ ! 703: s = 0; /* start off with normal keypad */ ! 704: if (shift & NMLS) /* num lock? */ ! 705: s = 1; /* set shift pad */ ! 706: if (shift & SES) /* shift? */ ! 707: s ^= 1; /* toggle shift pad */ ! 708: if (shift & AKPS) /* alternate pad? */ ! 709: s = 2; /* set alternate pad */ ! 710: if (extmode) /* not from keypad? */ ! 711: s = 0; /* force normal sequence */ ! 712: cp = keypad[c-71][s]; /* get keypad value */ ! 713: break; ! 714: } ! 715: if (cp) /* send string */ ! 716: while ((*cp != 0) && (*cp != -1)) ! 717: isin( *cp++ & 0377 ); ! 718: return update_leds; ! 719: } ! 720: ! 721: /** ! 722: * ! 723: * void ! 724: * ismmfunc( c ) -- process keyboard related output escape sequences ! 725: * char c; ! 726: */ ! 727: void ! 728: ismmfunc(c) ! 729: register int c; ! 730: { ! 731: switch (c) { ! 732: case 't': /* Enter numlock */ ! 733: shift |= NMLS; ! 734: updleds(); /* update LED status */ ! 735: break; ! 736: case 'u': /* Leave numlock */ ! 737: shift &= ~NMLS; ! 738: updleds(); /* update LED status */ ! 739: break; ! 740: case '=': /* Enter alternate keypad */ ! 741: shift |= AKPS; ! 742: break; ! 743: case '>': /* Exit alternate keypad */ ! 744: shift &= ~AKPS; ! 745: break; ! 746: case 'c': /* Reset terminal */ ! 747: islock = 0; ! 748: shift = 0; ! 749: initkeys(); ! 750: updleds(); /* update LED status */ ! 751: break; ! 752: } ! 753: } ! 754: ! 755: /** ! 756: * ! 757: * void ! 758: * isin( c ) -- append character to raw input silo ! 759: * char c; ! 760: */ ! 761: static ! 762: isin( c ) ! 763: register int c; ! 764: { ! 765: int cache_it = 1; ! 766: TTY * tp = &istty; ! 767: ! 768: /* ! 769: * If using software incoming flow control, process and ! 770: * discard t_stopc and t_startc. ! 771: */ ! 772: if (!ISRIN) { ! 773: if (ISSTOP) { ! 774: if ((tp->t_flags&T_STOP) == 0) ! 775: tp->t_flags |= T_STOP; ! 776: cache_it = 0; ! 777: } ! 778: if (ISSTART) { ! 779: tp->t_flags &= ~T_STOP; ! 780: ttstart(tp); ! 781: cache_it = 0; ! 782: } ! 783: } ! 784: ! 785: /* ! 786: * Cache received character. ! 787: */ ! 788: if (cache_it) { ! 789: istty.t_rawin.si_buf[ istty.t_rawin.si_ix ] = c; ! 790: ! 791: if ( ++istty.t_rawin.si_ix >= sizeof(istty.t_rawin.si_buf) ) ! 792: istty.t_rawin.si_ix = 0; ! 793: } ! 794: } ! 795: ! 796: /** ! 797: * ! 798: * void ! 799: * isbatch() -- raw input conversion routine ! 800: * ! 801: * Action: Enable the video display. ! 802: * Canonize the raw input silo. ! 803: * ! 804: * Notes: isbatch() was scheduled as a deferred process by isrint(). ! 805: */ ! 806: static void ! 807: isbatch( tp ) ! 808: register TTY * tp; ! 809: { ! 810: register int c; ! 811: static int lastc; ! 812: ! 813: /* ! 814: * Ensure video display is enabled. ! 815: */ ! 816: mm_von(); ! 817: ! 818: isbusy = 0; ! 819: ! 820: /* ! 821: * Process all cached characters. ! 822: */ ! 823: while ( tp->t_rawin.si_ix != tp->t_rawin.si_ox ) { ! 824: ! 825: /* ! 826: * Get next cached char. ! 827: */ ! 828: c = tp->t_rawin.si_buf[ tp->t_rawin.si_ox ]; ! 829: ! 830: if ( tp->t_rawin.si_ox >= sizeof(tp->t_rawin.si_buf) - 1 ) ! 831: tp->t_rawin.si_ox = 0; ! 832: else ! 833: tp->t_rawin.si_ox++; ! 834: ! 835: if ( (islock == 0) || ISINTR || ISQUIT ) { ! 836: ttin( tp, c ); ! 837: } ! 838: ! 839: else if ( (c == 'b') && (lastc == '\033') ) { ! 840: islock = 0; ! 841: ttin( tp, lastc ); ! 842: ttin( tp, c ); ! 843: } ! 844: ! 845: else if ( (c == 'c') && (lastc == '\033') ) { ! 846: ttin( tp, lastc ); ! 847: ttin( tp, c ); ! 848: } ! 849: ! 850: else ! 851: putchar('\007'); ! 852: ! 853: lastc = c; ! 854: } ! 855: } ! 856: ! 857: /* ! 858: * update the keyboard status LEDS ! 859: */ ! 860: updleds() ! 861: { ! 862: int s; ! 863: ! 864: s = sphi(); ! 865: outb(KBDATA, LEDCMD); ! 866: ledcmd = 1; ! 867: spl(s); ! 868: } ! 869: ! 870: /* ! 871: * unlock the scroll in case an interrupt character is received ! 872: */ ! 873: kbunscroll() ! 874: { ! 875: scroll = 0; ! 876: updleds(); ! 877: }
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