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1.1 ! root 1: #define SWANFIX 1 ! 2: #define GREEKFIX 1 ! 3: ! 4: /* ! 5: * User configurable AT keyboard/display driver. ! 6: * 286/386 AT COHERENT ! 7: */ ! 8: #include <sys/coherent.h> ! 9: #ifdef _I386 ! 10: #include <sys/reg.h> ! 11: #else ! 12: #include <sys/i8086.h> ! 13: #endif ! 14: #include <sys/con.h> ! 15: #include <errno.h> ! 16: #include <sys/stat.h> ! 17: #include <sys/tty.h> ! 18: #include <signal.h> ! 19: #include <sys/seg.h> ! 20: #include <sys/sched.h> ! 21: #include <sys/kb.h> ! 22: #include <sys/devices.h> ! 23: #include <sys/silo.h> ! 24: ! 25: #include <sys/vt.h> ! 26: ! 27: #define ISVEC 1 /* Keyboard interrupt vector */ ! 28: #define DEBUG 0 ! 29: ! 30: #define KBDEBUG(x) T_CON(1,printf(x)); /* debugging output */ ! 31: #define KBDEBUG2(x,y) T_CON(1,printf(x,y)); /* debugging output */ ! 32: #define KBDEBUG3(x,y,z) T_CON(1,printf(x,y,z)); /* debugging output */ ! 33: ! 34: /* ! 35: * values for kbstate ! 36: */ ! 37: #define KB_IDLE 0 /* nothing going on right now */ ! 38: #define KB_SINGLE 1 /* sent a single byte cmd to the kbd */ ! 39: #define KB_DOUBLE_1 2 /* sent 1st byte of 2-byte cmd to kbd */ ! 40: #define KB_DOUBLE_2 3 /* sent 2nd byte of 2-byte cmd to kbd */ ! 41: ! 42: /* ! 43: * patchable params for non-standard keyboards ! 44: */ ! 45: int KBDATA = 0x60; /* Keyboard data */ ! 46: int KBCTRL = 0x61; /* Keyboard control */ ! 47: int KBSTS_CMD = 0x64; /* Keyboard status/command */ ! 48: int KBFLAG = 0x80; /* Keyboard reset flag */ ! 49: int KBBOOT = 1; /* 0: disallow reboot from keyboard */ ! 50: int KBTIMEOUT = 10000; /* shouldn't need this much */ ! 51: int KBCMDBYTE = 0x05; /* no translation */ ! 52: ! 53: /* ! 54: * KBSTATUS bits ! 55: */ ! 56: #define STS_OBUF_FULL 0x01 /* kbd output buffer full */ ! 57: #define STS_IBUF_FULL 0x02 /* kbd input buffer full */ ! 58: #define STS_SYSTEM 0x04 ! 59: #define STS_CMD_DATA 0x08 /* 1: command or status */ ! 60: #define STS_INHIBIT 0x10 /* 0: keyboard inhibited */ ! 61: #define STS_AUX_OBUF_FULL 0x20 ! 62: #define STS_TIMEOUT 0x40 /* general timeout */ ! 63: #define STS_PAR_ERR 0x80 /* parity error */ ! 64: ! 65: /* ! 66: * The following are magic commands which read from or write to the ! 67: * controller command byte. These get output to the KBSTS_CMD port. ! 68: */ ! 69: #define C_READ_CMD 0x20 /* read controller command byte */ ! 70: #define C_WRITE_CMD 0x60 /* write controller command byte */ ! 71: #define C_TRANSLATE 0x40 /* translate enable bit in cmd byte */ ! 72: ! 73: /* ! 74: * Globals: ! 75: * The 286 keyboard mapping table is too large to fit into kernel data space, ! 76: * so we need to allocate a segment to it. 386 is easy. ! 77: * The function keys tend to be small and tend to change substantially ! 78: * more often than the mapping table, so we keep them in the kernel data space. ! 79: */ ! 80: static unsigned shift; /* state of all shift/lock keys */ ! 81: static unsigned char **funkeyp = 0; /* ptr to array of func. keys ptrs */ ! 82: static FNKEY *fnkeys = 0; /* pointer to structure of values */ ! 83: static unsigned fklength; /* length of k_fnval field in fnkeys */ ! 84: static unsigned prev_cmd; /* previous command sent to KBD */ ! 85: static unsigned cmd2; /* 2nd byte of command to KBD */ ! 86: static unsigned sh_index; /* shift/lock state index */ ! 87: #ifdef _I386 ! 88: static KBTBL kb[MAX_KEYS]; /* keyboard table */ ! 89: #else ! 90: static SEG *kbsegp; /* keyboard table segment */ ! 91: #endif ! 92: ! 93: /* ! 94: * State variables. ! 95: */ ! 96: int islock; /* Keyboard locked flag */ ! 97: int isbusy; /* Raw input conversion busy */ ! 98: static char table_loaded; /* true == keyboard table resident */ ! 99: static char fk_loaded; /* true == function keys resident */ ! 100: static int kbstate = KB_IDLE; /* current keyboard state */ ! 101: ! 102: /* ! 103: * Functions. ! 104: */ ! 105: int isrint(); ! 106: int istime(); ! 107: void isbatch(); ! 108: int mmstart(); ! 109: int isopen(); ! 110: int isclose(); ! 111: int isread(); ! 112: int mmwrite(); ! 113: int isioctl(); ! 114: void mmwatch(); ! 115: int isload(); ! 116: int isuload(); ! 117: int ispoll(); ! 118: int nulldev(); ! 119: int nonedev(); ! 120: int updleds(); ! 121: ! 122: /* ! 123: * Configuration table. ! 124: */ ! 125: CON iscon ={ ! 126: DFCHR|DFPOL, /* Flags */ ! 127: KB_MAJOR, /* Major index */ ! 128: isopen, /* Open */ ! 129: isclose, /* Close */ ! 130: nulldev, /* Block */ ! 131: isread, /* Read */ ! 132: mmwrite, /* Write */ ! 133: isioctl, /* Ioctl */ ! 134: nulldev, /* Powerfail */ ! 135: mmwatch, /* Timeout */ ! 136: isload, /* Load */ ! 137: isuload, /* Unload */ ! 138: ispoll /* Poll */ ! 139: }; ! 140: ! 141: /* ! 142: ============================================================================== ! 143: ============================================================================== ! 144: */ ! 145: /* constants for vtdata[] */ ! 146: #define VT_VGAPORT 0x3D4 ! 147: #define VT_MONOPORT 0x3B4 ! 148: ! 149: #ifdef _I386 ! 150: #define VT_MONOBASE (SEG_VIDEOa|DPL_1) ! 151: #define VT_VGABASE (SEG_VIDEOb|DPL_1) ! 152: #else ! 153: #define VT_MONOBASE 0xB000 ! 154: #define VT_VGABASE 0xB800 ! 155: #endif ! 156: ! 157: /* ! 158: Patchable table entrys, ! 159: we go indirect in order to produce a label which can be addressed ! 160: */ ! 161: #if SWANFIX ! 162: int VTSWAN = 0; /* patch to 1 for epstein's fix for Swan keyboard */ ! 163: #endif ! 164: ! 165: #if GREEKFIX ! 166: static void ToggleGreek(); ! 167: static int ToGreek(); ! 168: int VTGREEK = 0; /* patch to 1 for TECOP Greek mod */ ! 169: #endif ! 170: ! 171: HWentry VTVGA = { 4, 0, VT_VGAPORT, { 0, VT_VGABASE }, { 25, 80 } }; ! 172: HWentry VTMONO = { 4, 0, VT_MONOPORT, { 0, VT_MONOBASE }, { 25, 80 } }; ! 173: ! 174: HWentry *vtHWtable[] = { ! 175: VTVGA, /* VGA followed by MONO is compatible to DOS */ ! 176: VTMONO, ! 177: 0 /* MUST STAY AS LAST ELEMENT !!! */ ! 178: }; ! 179: ! 180: extern int mminit(); ! 181: static VTDATA const_vtdata = { ! 182: mminit, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 23, 24, 0, 0, 0, 23, 0, 0, 1 ! 183: }; ! 184: ! 185: /* later this should be dynamic */ ! 186: VTDATA *vtconsole, **vtdata; ! 187: ! 188: int vtcount, vtmax; ! 189: extern int vtactive; ! 190: int vt_verbose = { 0 }; ! 191: int vt_opened = { 0 }; ! 192: ! 193: /* Terminal structure. */ ! 194: TTY **vttty; ! 195: ! 196: /* ! 197: ============================================================================== ! 198: ============================================================================== ! 199: */ ! 200: ! 201: static silo_t in_silo; ! 202: ! 203: /* ! 204: * Given hw pointer for one of four types of adapters, see if ! 205: * device is present by write/readback of video memory. ! 206: * ! 207: * return 1 if present, else 0 ! 208: */ ! 209: int ! 210: hwpresent( hw ) ! 211: HWentry *hw; ! 212: { ! 213: int save, present = 1; ! 214: ! 215: PRINTV( "hwpresent: %x:%x", ! 216: hw->vidmemory.seg, hw->vidmemory.off ); ! 217: save = ffword( hw->vidmemory.off, hw->vidmemory.seg ); ! 218: ! 219: sfword( hw->vidmemory.off, hw->vidmemory.seg, 0xAA55 ); ! 220: if( ffword( hw->vidmemory.off, hw->vidmemory.seg ) != 0xAA55 ) ! 221: present = 0; ! 222: ! 223: sfword( hw->vidmemory.off, hw->vidmemory.seg, 0x55AA ); ! 224: if( ffword( hw->vidmemory.off, hw->vidmemory.seg ) != 0x55AA ) ! 225: present = 0; ! 226: ! 227: sfword( hw->vidmemory.off, hw->vidmemory.seg, save ); ! 228: PRINTV( "%s present\n", present ? "" : " NOT" ); ! 229: return present; ! 230: } ! 231: ! 232: /* ! 233: * Load entry point. ! 234: */ ! 235: isload() ! 236: { ! 237: register int i; ! 238: register HWentry **hw; ! 239: register VTDATA *vp; ! 240: ! 241: PRINTV("vtload:\n"); ! 242: fk_loaded = 0; ! 243: table_loaded = 0; ! 244: kbstate = KB_IDLE; ! 245: ! 246: /* figure out what our current max is */ ! 247: for( vtmax = 0, hw = vtHWtable; *hw; ++hw ) { ! 248: vtmax += (*hw)->count; ! 249: (*hw)->found = 0; /* assume non-exist */ ! 250: } ! 251: PRINTV( "vtload: %d screens possible\n", vtmax ); ! 252: ! 253: vtdata = (VTDATA **) kalloc( vtmax * sizeof( *vtdata ) ); ! 254: if( vtdata == NULL ) { ! 255: printf( "vtload: unable to obtain vtdata[%d]\n", vtmax ); ! 256: u.u_error = -1; ! 257: return; ! 258: } ! 259: PRINTV( "vtload: obtained vtdata[%d] @%x\n", vtmax, vtdata ); ! 260: ! 261: vttty = (TTY **) kalloc( vtmax * sizeof( *vttty ) ); ! 262: if( vttty == NULL ) { ! 263: printf( "vtload: unable to obtain vttty[%d]\n", vtmax ); ! 264: u.u_error = -1; ! 265: return; ! 266: } ! 267: PRINTV( "vtload: obtained vttty[%d] @%x\n", vtmax, vttty ); ! 268: ! 269: /* determine which video adaptors are present */ ! 270: for( vtcount = 0, hw = vtHWtable; *hw; ++hw ) { ! 271: /* suppress board sensing since it seems to confuse some equipment */ ! 272: #if 0 ! 273: if( !hwpresent(*hw) ) ! 274: continue; ! 275: #endif ! 276: ! 277: /* remember our logical start */ ! 278: (*hw)->start = vtcount; ! 279: PRINTV( ", start %d\n", vtcount ); ! 280: ! 281: /* allocate the necessary memory */ ! 282: for ( i = 0; i < (*hw)->count; ++i ) { ! 283: vp = vtdata[vtcount] = kalloc( sizeof(VTDATA) ); ! 284: PRINTV( " vtdata[%d] = @%x\n", vtcount, vp ); ! 285: if( vp == NULL || !VTttyinit(vtcount) ) { ! 286: printf("not enough memory for VTDATA\n" ); ! 287: break; ! 288: } ! 289: ! 290: /* fill in appropriately */ ! 291: *vp = const_vtdata; ! 292: vp->vmm_port = (*hw)->port; ! 293: vp->vmm_vseg = (*hw)->vidmemory.seg; ! 294: vp->vmm_voff = (*hw)->vidmemory.off; ! 295: ! 296: vp->vt_ind = vtcount; ! 297: vtdatainit(vp); ! 298: if (i == 0 ) { ! 299: vp->vmm_visible = VNKB_TRUE; ! 300: vp->vmm_seg = vp->vmm_vseg; ! 301: vp->vmm_off = vp->vmm_voff; ! 302: updscreen(vtcount); ! 303: } ! 304: (*hw)->found++; ! 305: vtcount++; ! 306: } ! 307: } ! 308: ! 309: /* ! 310: * initialize vtconsole ! 311: */ ! 312: vtconsole = vtdata[vtactive = 0]; ! 313: vtconsole->vmm_invis = 0; /* vtconsole cursor visible */ ! 314: ! 315: /* ! 316: * Seize keyboard interrupt. ! 317: */ ! 318: #ifdef _I386 ! 319: setivec(ISVEC, isrint); ! 320: #else ! 321: #if VT_MAJOR == KB_MAJOR ! 322: setivec(1, isrint); ! 323: #else ! 324: /* ! 325: * Map table and vector to us ! 326: */ ! 327: i = sphi(); ! 328: PRINTV( "VTload: unload old vector\n" ); ! 329: kcall( Kclrivec, 1 ); ! 330: setivec(1, isrint); ! 331: spl( i ); ! 332: #endif ! 333: #endif /* _I386 */ ! 334: ! 335: /* ! 336: * Enable mmwatch() invocation every second. ! 337: */ ! 338: drvl[VT_MAJOR].d_time = 1; ! 339: ! 340: /* ! 341: * Initialize video display. ! 342: */ ! 343: for ( i = 0; i < vtcount; ++i ) ! 344: mmstart( vttty[i] ); ! 345: ! 346: ! 347: #ifndef _I386 ! 348: /* ! 349: * Allocate a segment to store the in-core keyboard table. ! 350: * This would be a lot more convenient in kernel data space, ! 351: * but small model COHERENT doesn't have that luxury. ! 352: */ ! 353: kbsegp = salloc((fsize_t)MAX_TABLE_SIZE, SFSYST|SFNSWP|SFHIGH); ! 354: if (kbsegp == (SEG *)0) ! 355: printf("kb: unable to allocate keyboard table segment\n"); ! 356: KBDEBUG("Exiting kbload()\n"); ! 357: #endif ! 358: fklength = 0; ! 359: } ! 360: ! 361: /* ! 362: * Unload entry point. ! 363: */ ! 364: isuload() ! 365: { ! 366: register int i; ! 367: register level = sphi(); ! 368: ! 369: clrivec(ISVEC); ! 370: #ifndef _I386 ! 371: #if VT_MAJOR != KB_MAJOR ! 372: kcall( Ksetivec, ISVEC, &Kisrint ); ! 373: #endif ! 374: #endif ! 375: spl( level ); ! 376: ! 377: /* Restore pointers to original state. */ ! 378: vtconsole = vtdata[0]; ! 379: vtconsole->vmm_invis = 0; ! 380: vtconsole->vmm_visible = VNKB_TRUE; ! 381: ! 382: if( vt_opened ) ! 383: printf( "VTclose with %d open screens\n", vt_opened ); ! 384: if( kbstate != KB_IDLE ) ! 385: printf("kb: keyboard busy during unload\n"); ! 386: #ifndef _I386 ! 387: if (kbsegp != (SEG *)0) { ! 388: table_loaded = 0; ! 389: sfree(kbsegp); ! 390: } ! 391: #endif ! 392: ! 393: #ifndef _I386 ! 394: for( i = 0; i < vtcount; ++i ) { ! 395: PRINTV( "VTuload: free far %x:%x, tty %x\n", ! 396: vttty[i]->t_buffer->s_faddr, vttty[i] ); ! 397: sfree( vttty[i]->t_buffer ); ! 398: kfree( vttty[i] ); ! 399: sfree( vtdata[i].vt_buffer ); ! 400: } ! 401: #endif ! 402: } ! 403: ! 404: /* ! 405: * Open routine. ! 406: */ ! 407: isopen(dev, mode) ! 408: dev_t dev; ! 409: unsigned int mode; ! 410: { ! 411: register int s; ! 412: register TTY *tp; ! 413: int index = vtindex(dev); ! 414: ! 415: PRINTV("isopen: %x\n", dev); ! 416: if (index < 0 || index >= vtcount) { ! 417: u.u_error = ENXIO; ! 418: return; ! 419: } ! 420: ! 421: tp = vttty[index]; ! 422: if ((tp->t_flags&T_EXCL) != 0 && !super()) { ! 423: u.u_error = ENODEV; ! 424: return; ! 425: } ! 426: ttsetgrp(tp, dev, mode); ! 427: ! 428: s = sphi(); ! 429: if (tp->t_open++ == 0) { ! 430: tp->t_flags = T_CARR; /* indicate "carrier" */ ! 431: ttopen(tp); ! 432: } ! 433: spl(s); ! 434: #if 0 ! 435: updleds(); /* update keyboard status LEDS */ ! 436: #endif ! 437: } ! 438: ! 439: ! 440: void isvtswitch(); ! 441: ! 442: /* ! 443: * Close a tty. ! 444: */ ! 445: isclose(dev) ! 446: { ! 447: register int s; ! 448: int index = vtindex(dev); ! 449: register TTY *tp = vttty[index]; ! 450: ! 451: #if 0 ! 452: s = sphi(); ! 453: if (--tp->t_open == 0) { ! 454: ttclose(tp); ! 455: spl(s); ! 456: if( index == vtactive ) ! 457: isvtswitch( VTKEY_HOME ); ! 458: } else ! 459: spl(s); ! 460: #else ! 461: if (--tp->t_open == 0) ! 462: ttclose(tp); ! 463: #endif ! 464: } ! 465: ! 466: /* ! 467: * Read routine. ! 468: */ ! 469: isread(dev, iop) ! 470: dev_t dev; ! 471: IO *iop; ! 472: { ! 473: int index = vtindex(dev); ! 474: register TTY *tp = vttty[index]; ! 475: ! 476: ttread(tp, iop, 0); ! 477: if (tp->t_oq.cq_cc) ! 478: mmtime(tp); ! 479: } ! 480: ! 481: /* ! 482: * Ioctl routine. ! 483: * nb: archaic TIOCSHIFT and TIOCCSHIFT no longer needed/supported. ! 484: */ ! 485: isioctl(dev, com, vec) ! 486: dev_t dev; ! 487: struct sgttyb *vec; ! 488: { ! 489: register int s; ! 490: ! 491: switch (com) { ! 492: case TIOCSETF: ! 493: case TIOCGETF: ! 494: isfunction(com, (char *)vec); ! 495: break; ! 496: case TIOCSETKBT: ! 497: issettable(vec); ! 498: break; ! 499: case TIOCGETKBT: ! 500: isgettable(vec); ! 501: break; ! 502: default: /* pass to TTY driver */ ! 503: s = sphi(); ! 504: ttioctl(vttty[vtindex(dev)], com, vec); ! 505: spl(s); ! 506: break; ! 507: } ! 508: } ! 509: ! 510: /* ! 511: * Set the in-core keyboard mapping table. ! 512: * The table is sorted by scan code prior to calling ioctl(). ! 513: * All unused table entries (holes in the scan code map) have ! 514: * a zero for the k_key field. ! 515: * This makes key lookup at interrupt time fast by using the scan code ! 516: * as an index into the table. ! 517: */ ! 518: issettable(vec) ! 519: char *vec; ! 520: { ! 521: register unsigned i; ! 522: register int s; ! 523: int timeout; ! 524: static KBTBL this_key; /* current key from kbd table */ ! 525: unsigned int cmd_byte; ! 526: #ifndef _I386 ! 527: register faddr_t faddr; /* address of keyboard table */ ! 528: #endif ! 529: ! 530: PRINTV(" TIOCSETKBT"); ! 531: kb_cmd2(K_SCANCODE_CMD, 3); /* select set 3 */ ! 532: kb_cmd(K_ALL_TMB_CMD); /* default: TMB for all keys */ ! 533: #ifndef _I386 ! 534: faddr = kbsegp->s_faddr; ! 535: #endif ! 536: for (i = 0; i < MAX_KEYS; ++i) { ! 537: ukcopy(vec, &this_key, sizeof(this_key)); ! 538: #ifdef _I386 ! 539: kb[i] = this_key; /* store away */ ! 540: #else ! 541: kfcopy(&this_key, faddr, sizeof(this_key)); ! 542: faddr += sizeof(this_key); ! 543: #endif ! 544: vec += sizeof(this_key); ! 545: if (this_key.k_key != i && this_key.k_key != 0) { ! 546: printf("kb: incorrect or unsorted table entry %d\n", i); ! 547: #ifdef _I386 ! 548: u.u_error = EINVAL; ! 549: #else ! 550: u.u_error = EBADFMT; ! 551: #endif ! 552: return; ! 553: } ! 554: if (this_key.k_key != i) ! 555: continue; /* no key */ ! 556: switch (this_key.k_flags&TMODE) { ! 557: case T: /* typematic */ ! 558: kb_cmd2(K_KEY_T_CMD, i); ! 559: break; ! 560: case M: /* make only */ ! 561: kb_cmd2(K_KEY_M_CMD, i); ! 562: break; ! 563: case MB: /* make/break */ ! 564: kb_cmd2(K_KEY_MB_CMD, i); ! 565: break; ! 566: case TMB: /* typematic make/break */ ! 567: break; /* this is the default */ ! 568: default: ! 569: printf("kb: bad key mode\n"); ! 570: } ! 571: } ! 572: updleds(); ! 573: kb_cmd2(K_SCANCODE_CMD, 3); /* select set 3 */ ! 574: kb_cmd(K_ENABLE_CMD); /* start scanning */ ! 575: /* ! 576: * The following code disables translation from the on-board ! 577: * keyboard/aux controller. Without disabling translation, the ! 578: * received scan codes still look like code set 1 codes even ! 579: * though we put the keyboard controller in scan code set 3. ! 580: * Yes, this is progress.... ! 581: */ ! 582: #if 0 ! 583: while (inb(KBSTS_CMD) & STS_IBUF_FULL) ! 584: ; ! 585: outb(KBSTS_CMD, C_READ_CMD); /* read controller cmd byte */ ! 586: while (!(inb(KBSTS_CMD) & STS_OBUF_FULL)) ! 587: ; ! 588: cmd_byte = inb(KBDATA); ! 589: KBDEBUG2(" cmd_byte=%x", cmd_byte); ! 590: #endif ! 591: timeout = KBTIMEOUT; ! 592: s = sphi(); ! 593: while ((inb(KBSTS_CMD) & STS_IBUF_FULL) && --timeout > 0) ! 594: ; ! 595: outb(KBSTS_CMD, C_WRITE_CMD); /* write controller cmd byte */ ! 596: for (timeout = 50; --timeout > 0;) ! 597: ; ! 598: timeout = KBTIMEOUT; ! 599: while ((inb(KBSTS_CMD) & STS_IBUF_FULL) && --timeout > 0) ! 600: ; ! 601: outb(KBDATA, KBCMDBYTE); /* turn off translation */ ! 602: timeout = KBTIMEOUT; ! 603: while ((inb(KBSTS_CMD) & STS_IBUF_FULL) && --timeout > 0) ! 604: ; ! 605: spl(s); ! 606: #if DEBUG || 1 ! 607: kb_cmd2(K_SCANCODE_CMD, 0); /* query s.c. mode */ ! 608: #endif ! 609: ++table_loaded; ! 610: PRINTV("... TIOCSETKBT\n"); ! 611: } ! 612: ! 613: /* ! 614: * Get the in-core keyboard mapping table and pass it to the user. ! 615: */ ! 616: isgettable(vec) ! 617: char *vec; ! 618: { ! 619: #ifdef _I386 ! 620: KBDEBUG(" TIOCGETKBT"); ! 621: kucopy(kb, vec, sizeof(kb)); ! 622: #else ! 623: register unsigned i; ! 624: register faddr_t faddr; /* address of keyboard table */ ! 625: static KBTBL this_key; /* current key from kbd table */ ! 626: ! 627: KBDEBUG(" TIOCGETKBT"); ! 628: faddr = kbsegp->s_faddr; ! 629: for (i = 0; i < MAX_KEYS; ++i) { ! 630: fkcopy(faddr, &this_key, sizeof(this_key)); ! 631: kucopy(&this_key, vec, sizeof(this_key)); ! 632: faddr += sizeof(this_key); ! 633: vec += sizeof(this_key); ! 634: } ! 635: #endif ! 636: } ! 637: ! 638: ! 639: /* ! 640: * Set and receive the function keys. ! 641: */ ! 642: isfunction(c, v) ! 643: int c; ! 644: FNKEY *v; ! 645: { ! 646: register unsigned char *cp; ! 647: register unsigned i; ! 648: unsigned char numkeys = 0; ! 649: ! 650: if (c == TIOCGETF) { ! 651: KBDEBUG(" TIOCGETF"); ! 652: if (!fk_loaded) ! 653: u.u_error = EINVAL; ! 654: else ! 655: kucopy(fnkeys, v, fklength); /* copy ours to user */ ! 656: } else { /* TIOCSETF */ ! 657: /* ! 658: * If we had a previous function key arena, free it up. ! 659: * Since we don't know how large the function key arena will ! 660: * be, we must size it in the user data space prior to ! 661: * (re)kalloc()'ing it. This is ugly, but a helluva lot better ! 662: * than the old driver which used a hard coded limit of 150! ! 663: */ ! 664: KBDEBUG(" TIOCSETF"); ! 665: fk_loaded = 0; ! 666: if (fnkeys != (FNKEY *)0) ! 667: kfree(fnkeys); /* free old arena */ ! 668: if (funkeyp != NULL) ! 669: kfree(funkeyp); /* free old ptr array */ ! 670: ukcopy(&v->k_nfkeys, &numkeys, sizeof(numkeys)); ! 671: fklength = sizeof(FNKEY); ! 672: cp = v->k_fnval; ! 673: for (i = 0; i < numkeys; i++) { ! 674: do { ! 675: ++fklength; ! 676: } while (getubd(cp++) != DELIM); ! 677: } ! 678: fnkeys = (FNKEY *)kalloc(fklength); ! 679: funkeyp = (unsigned char **)kalloc(numkeys * sizeof(char *)); ! 680: if (fnkeys == (FNKEY *)0 || funkeyp == NULL) { ! 681: if (fnkeys != (FNKEY *)0) { ! 682: kfree(fnkeys); ! 683: fnkeys = 0; ! 684: } ! 685: if (funkeyp != NULL) { ! 686: kfree(funkeyp); ! 687: funkeyp = 0; ! 688: } ! 689: u.u_error = ENOMEM; ! 690: return; ! 691: } ! 692: cp = fnkeys->k_fnval; /* point to Fn ... */ ! 693: v = v->k_fnval; /* ... key arena */ ! 694: for (i = 0; i < numkeys; i++) { ! 695: funkeyp[i] = cp; /* save pointer */ ! 696: while ((*cp++ = getubd(v++)) != DELIM) /* copy key */ ! 697: ; ! 698: } ! 699: fnkeys->k_nfkeys = numkeys; ! 700: fk_loaded = 1; ! 701: } ! 702: } ! 703: ! 704: ! 705: /* ! 706: * Poll routine. ! 707: */ ! 708: ispoll(dev, ev, msec) ! 709: dev_t dev; ! 710: int ev; ! 711: int msec; ! 712: { ! 713: register TTY *tp = vttty[vtindex(dev)]; ! 714: ! 715: return ttpoll(tp, ev, msec); ! 716: } ! 717: ! 718: /* ! 719: * Receive interrupt. ! 720: */ ! 721: #define K_E0ESC 0xE0 /* Swan Keyboard, Strange Escape Byte */ ! 722: ! 723: isrint() ! 724: { ! 725: register unsigned c; ! 726: register unsigned r; ! 727: static char keyup; ! 728: #if SWANFIX ! 729: static char e0esc; ! 730: #endif ! 731: ! 732: /* ! 733: * Schedule raw input handler if not already active. ! 734: */ ! 735: if (!isbusy) { ! 736: defer(isbatch, vttty[vtactive]); ! 737: isbusy = 1; ! 738: } ! 739: ! 740: /* ! 741: * Pull character from the data ! 742: * port. Pulse the KBFLAG in the control ! 743: * port to reset the data buffer. ! 744: */ ! 745: r = inb(KBDATA) & 0xFF; ! 746: c = inb(KBCTRL); ! 747: outb(KBCTRL, c|KBFLAG); ! 748: outb(KBCTRL, c); ! 749: ! 750: /* ! 751: * check returned value from keyboard to see if it's a command ! 752: * or status back to us. If not, it we assume that it's a key code. ! 753: */ ! 754: KBDEBUG2("\nintr(%x) ", r); ! 755: switch (r) { ! 756: case K_BREAK: ! 757: keyup = 1; /* key going up */ ! 758: break; ! 759: case K_ECHO_R: ! 760: case K_BAT_OK: ! 761: break; /* very nice, but ignored */ ! 762: case K_BAT_BAD: ! 763: printf("kb: keyboard BAT failed\n"); ! 764: break; ! 765: case K_RESEND: ! 766: KBDEBUG("\nkb: request to resend command\n"); ! 767: outb(KBDATA, prev_cmd); ! 768: break; ! 769: case K_OVERRUN_23: ! 770: printf("kb: keyboard buffer overrun\n"); ! 771: break; ! 772: case K_ACK: ! 773: /* ! 774: * we received an ACKnowledgement from the keyboard. ! 775: * advance the state machine and continue. ! 776: */ ! 777: KBDEBUG(" ACK "); ! 778: switch (kbstate) { ! 779: case KB_IDLE: /* shouldn't happen */ ! 780: printf("vtnkb: ACK while idle "); ! 781: break; ! 782: case KB_SINGLE: /* done with 1-byte command */ ! 783: case KB_DOUBLE_2: /* done w/ 2nd of 2-byte cmd */ ! 784: kbstate = KB_IDLE; ! 785: wakeup(&kbstate); ! 786: break; ! 787: case KB_DOUBLE_1: ! 788: kbstate = KB_DOUBLE_2; ! 789: outb(KBDATA, cmd2); ! 790: break; ! 791: default: ! 792: printf("kb: bad kbstate %d\n", kbstate); ! 793: break; ! 794: } ! 795: break; ! 796: #if SWANFIX ! 797: case K_E0ESC: ! 798: if (VTSWAN) { ! 799: e0esc = 1; ! 800: break; ! 801: } ! 802: #endif ! 803: default: ! 804: #if SWANFIX ! 805: process_key(r, keyup, e0esc); ! 806: e0esc = 0; ! 807: #else ! 808: process_key(r, keyup); ! 809: #endif ! 810: keyup = 0; ! 811: } ! 812: } ! 813: ! 814: /* ! 815: * Process a key given its scan code and direction. ! 816: * ! 817: * In this table driven version of the keyboard driver, we trade off the ! 818: * code complexity associated with all the black magic that used to be ! 819: * performed on a per-key basis with the increased memory requirements ! 820: * associated with the table driven approach. ! 821: */ ! 822: #if SWANFIX 1 ! 823: process_key(key, up, e0esc) ! 824: unsigned key; ! 825: char up, e0esc; ! 826: #else ! 827: process_key(key, up) ! 828: unsigned key; ! 829: int up; ! 830: #endif ! 831: { ! 832: register unsigned char *cp; ! 833: KBTBL key_vals; /* table values for this key */ ! 834: unsigned val; ! 835: unsigned char flags; ! 836: register TTY *tp = vttty[vtactive]; ! 837: VTDATA *vp = vtdata[vtactive]; ! 838: ! 839: KBDEBUG3(" proc(%x %s)", key, (up ? "up" : "down")); ! 840: if (!table_loaded) ! 841: return; /* throw away key */ ! 842: #ifdef _I386 ! 843: /* ! 844: * It's ugly but, if e0esc, then we use the ALT_GR field to point ! 845: * at the actual table entry we want. We weren't really using the ! 846: * ALT_GR field anyway. Trouble remapping shift keys because ! 847: * loader requires all entries to be identical, thus ALT_GR is ! 848: * by default being used. ! 849: */ ! 850: ! 851: #if SWANFIX ! 852: if ( VTSWAN && e0esc && !(kb[key].k_flags&S) ) ! 853: key = kb[key].k_val[ALT_GR]; /* Ugly kludge */ ! 854: #endif ! 855: key_vals = kb[key]; ! 856: #else ! 857: fkcopy(kbsegp->s_faddr + (key * sizeof(KBTBL)), ! 858: &key_vals, sizeof(key_vals)); ! 859: #endif ! 860: if (key_vals.k_key != key) /* empty entry */ ! 861: return; ! 862: flags = key_vals.k_flags; ! 863: ! 864: if (flags & S) { /* some shift/lock key ? */ ! 865: switch (key_vals.k_val[BASE]) { ! 866: case caps: ! 867: case num: ! 868: if (!up) { ! 869: shift ^= (1 << key_vals.k_val[BASE]); ! 870: updleds2(); ! 871: } ! 872: break; ! 873: case scroll: ! 874: if (!up) { ! 875: shift ^= (1 << key_vals.k_val[BASE]); ! 876: updleds2(); ! 877: if (!(tp->t_sgttyb.sg_flags&RAWIN)) { ! 878: if (tp->t_flags & T_STOP) { ! 879: isin(tp->t_tchars.t_startc); ! 880: } else { ! 881: isin(tp->t_tchars.t_stopc); ! 882: } ! 883: } ! 884: } ! 885: break; ! 886: default: ! 887: if (up) ! 888: shift &= ~(1 << key_vals.k_val[BASE]); ! 889: else ! 890: shift |= (1 << key_vals.k_val[BASE]); ! 891: break; ! 892: } ! 893: /* ! 894: * Calculate the shift index based upon the state of ! 895: * the shift and lock keys. ! 896: */ ! 897: sh_index = BASE; /* default condition */ ! 898: if (shift & (1 << altgr)) ! 899: sh_index = ALT_GR; ! 900: else { ! 901: if (shift & ((1 << lalt)|(1 << ralt))) ! 902: sh_index |= ALT; ! 903: if (shift & ((1 << lctrl)|(1 << rctrl))) ! 904: sh_index |= CTRL; ! 905: if (shift & ((1 << lshift)|(1 << rshift))) ! 906: sh_index |= SHIFT; ! 907: } ! 908: T_CON(2, printf("shift=%x sh_index=%d\n", shift, sh_index)); ! 909: return; ! 910: } /* if (flags & S) */ ! 911: ! 912: /* ! 913: * If the key has no value in the current ! 914: * shift state, the key is just tossed away. ! 915: */ ! 916: if (up || key_vals.k_val[sh_index] == none) ! 917: return; ! 918: ! 919: if (((flags & C) && (shift & (1 << caps))) ! 920: || ((flags & N) && (shift & (1 << num)))) ! 921: val = key_vals.k_val[sh_index^SHIFT]; ! 922: else ! 923: val = key_vals.k_val[sh_index]; ! 924: ! 925: /* ! 926: * Check for function key or special key implemented as ! 927: * a function key (reboot == f0, tab and back-tab, etc). ! 928: */ ! 929: if (flags & F) { ! 930: PRINTV( "<{F%d}>", val ); ! 931: if (VTKEY(val)) { ! 932: T_CON(4, ! 933: printf( "<{F%d !!}>\b\b\b\b\b\b\b\b\b\b", val)); ! 934: defer( isvtswitch, val ); ! 935: return; ! 936: } ! 937: /* If the tty is not open, ignore it */ ! 938: if( !tp->t_open ) ! 939: return; ! 940: #if GREEKFIX ! 941: if (VTGREEK && val == fgk) { ! 942: ToggleGreek(); ! 943: return; ! 944: } ! 945: #endif /* GREEKFIX */ ! 946: if (val == 0 && !up && KBBOOT) ! 947: boot(); ! 948: if (!fk_loaded || val >= fnkeys->k_nfkeys) ! 949: return; ! 950: if ((cp = funkeyp[val]) == NULL) /* has a value? */ ! 951: return; ! 952: while (*cp != DELIM) ! 953: isin(*cp++); /* queue up Fn key value */ ! 954: return; ! 955: } ! 956: ! 957: /* ! 958: * Normal key processing. ! 959: */ ! 960: /* If the tty is not open, ignore it */ ! 961: #if GREEKFIX ! 962: if( tp->t_open ) ! 963: if (VTGREEK) { ! 964: if (ToGreek(&val)) ! 965: isin(val); ! 966: } else ! 967: isin(val); ! 968: #else ! 969: if( tp->t_open ) ! 970: isin(val); /* send the char */ ! 971: #endif /* GREEKFIX */ ! 972: } ! 973: ! 974: /** ! 975: * ! 976: * void ! 977: * ismmfunc(c) -- process keyboard related output escape sequences ! 978: * char c; ! 979: */ ! 980: void ! 981: ismmfunc(c) ! 982: register int c; ! 983: { ! 984: ! 985: switch (c) { ! 986: case 't': /* Enter numlock */ ! 987: shift |= (1 << num); ! 988: updleds(); /* update LED status */ ! 989: break; ! 990: case 'u': /* Leave numlock */ ! 991: shift &= ~(1 << num); ! 992: updleds(); /* update LED status */ ! 993: break; ! 994: case '=': /* Enter alternate keypad -- ignored */ ! 995: case '>': /* Exit alternate keypad -- ignored */ ! 996: break; ! 997: case 'c': /* Reset terminal */ ! 998: islock = 0; ! 999: break; ! 1000: } ! 1001: } ! 1002: ! 1003: /** ! 1004: * ! 1005: * void ! 1006: * isin(c) -- append character to raw input silo ! 1007: * char c; ! 1008: */ ! 1009: static ! 1010: isin(c) ! 1011: register int c; ! 1012: { ! 1013: int cache_it = 1; ! 1014: TTY * tp = vttty[vtactive]; ! 1015: void ttstart(); ! 1016: ! 1017: /* ! 1018: * If using software incoming flow control, process and ! 1019: * discard t_stopc and t_startc. ! 1020: */ ! 1021: if (ISIXON) { ! 1022: #if _I386 ! 1023: if (ISSTART || (ISIXANY && ISXSTOP)) { ! 1024: tp->t_flags &= ~(T_STOP | T_XSTOP); ! 1025: ttstart(tp); ! 1026: cache_it = 0; ! 1027: } else if (ISSTOP) { ! 1028: if ((tp->t_flags&T_STOP) == 0) ! 1029: tp->t_flags |= (T_STOP | T_XSTOP); ! 1030: cache_it = 0; ! 1031: } ! 1032: #else ! 1033: if (ISSTOP) { ! 1034: if ((tp->t_flags&T_STOP) == 0) ! 1035: tp->t_flags |= T_STOP; ! 1036: cache_it = 0; ! 1037: } ! 1038: if (ISSTART) { ! 1039: tp->t_flags &= ~T_STOP; ! 1040: ttstart(tp); ! 1041: cache_it = 0; ! 1042: } ! 1043: #endif ! 1044: } ! 1045: ! 1046: /* ! 1047: * Cache received character. ! 1048: */ ! 1049: if (cache_it) { ! 1050: in_silo.si_buf[ in_silo.si_ix ] = c; ! 1051: ! 1052: if (++in_silo.si_ix >= sizeof(in_silo.si_buf)) ! 1053: in_silo.si_ix = 0; ! 1054: } ! 1055: } ! 1056: ! 1057: /** ! 1058: * ! 1059: * void ! 1060: * isbatch() -- raw input conversion routine ! 1061: * ! 1062: * Action: Enable the video display. ! 1063: * Canonize the raw input silo. ! 1064: * ! 1065: * Notes: isbatch() was scheduled as a deferred process by isrint(). ! 1066: */ ! 1067: static void ! 1068: isbatch(tp) ! 1069: register TTY * tp; ! 1070: { ! 1071: register int c; ! 1072: static int lastc; ! 1073: VTDATA *vp = tp->t_ddp; ! 1074: ! 1075: /* ! 1076: * Ensure video display is enabled. ! 1077: */ ! 1078: if( vp->vmm_visible ) { ! 1079: mm_von(vp); ! 1080: } ! 1081: isbusy = 0; ! 1082: ! 1083: /* ! 1084: * Process all cached characters. ! 1085: */ ! 1086: while (in_silo.si_ix != in_silo.si_ox) { ! 1087: /* ! 1088: * Get next cached char. ! 1089: */ ! 1090: c = in_silo.si_buf[ in_silo.si_ox ]; ! 1091: ! 1092: if (in_silo.si_ox >= sizeof(in_silo.si_buf) - 1) ! 1093: in_silo.si_ox = 0; ! 1094: else ! 1095: in_silo.si_ox++; ! 1096: ! 1097: if ((islock == 0) || ISINTR || ISQUIT) { ! 1098: ttin(tp, c); ! 1099: } else if ((c == 'b') && (lastc == '\033')) { ! 1100: islock = 0; ! 1101: ttin(tp, lastc); ! 1102: ttin(tp, c); ! 1103: } else if ((c == 'c') && (lastc == '\033')) { ! 1104: ttin(tp, lastc); ! 1105: ttin(tp, c); ! 1106: } else ! 1107: putchar('\007'); ! 1108: lastc = c; ! 1109: } ! 1110: } ! 1111: ! 1112: /* ! 1113: * update the keyboard status LEDS. ! 1114: * we chose the shift/lock key positions so this would be easy. ! 1115: * this flavor of routine is called while processing a system call on ! 1116: * behalf of the user. ! 1117: */ ! 1118: updleds() ! 1119: { ! 1120: kb_cmd2(K_LED_CMD, (shift >> 1) & 0x7); ! 1121: } ! 1122: ! 1123: /* ! 1124: * same as above, but callable from interrupt routines and other places ! 1125: * which cannot sleep() waiting for the state machine to go idle. ! 1126: */ ! 1127: updleds2() ! 1128: { ! 1129: register timeout; ! 1130: register int s; ! 1131: ! 1132: timeout = KBTIMEOUT; ! 1133: s = sphi(); ! 1134: while (--timeout > 0 && (inb(KBSTS_CMD) & STS_IBUF_FULL)) ! 1135: ; ! 1136: kbstate = KB_DOUBLE_1; ! 1137: cmd2 = (shift >> 1) & 0x7; ! 1138: prev_cmd = K_LED_CMD; ! 1139: outb(KBDATA, K_LED_CMD); ! 1140: spl(s); ! 1141: } ! 1142: ! 1143: /* ! 1144: * unlock the scroll in case an interrupt character is received ! 1145: */ ! 1146: kbunscroll() ! 1147: { ! 1148: shift &= ~(1 << scroll); ! 1149: updleds(); ! 1150: } ! 1151: ! 1152: /* ! 1153: * ship a single byte command to the keyboard ! 1154: */ ! 1155: kb_cmd(cmd) ! 1156: unsigned cmd; ! 1157: { ! 1158: register int timeout; ! 1159: register int s; ! 1160: ! 1161: s = sphi(); ! 1162: KBDEBUG2(" kb_cmd(%x)", cmd); ! 1163: while (kbstate != KB_IDLE) ! 1164: #ifdef _I386 ! 1165: x_sleep(&kbstate, pritty, slpriSigCatch, "kb a"); ! 1166: #else ! 1167: v_sleep(&kbstate, CVTTIN, IVTTIN, SVTTIN, "kb a"); ! 1168: #endif ! 1169: kbstate = KB_SINGLE; ! 1170: timeout = KBTIMEOUT; ! 1171: while (--timeout > 0 && (inb(KBSTS_CMD) & STS_IBUF_FULL)) ! 1172: ; ! 1173: if (!timeout) ! 1174: printf("kb: command timeout\n"); ! 1175: else { ! 1176: outb(KBDATA, cmd); ! 1177: while (kbstate != KB_IDLE) ! 1178: #ifdef _I386 ! 1179: x_sleep(&kbstate, pritty, slpriSigCatch, "kb b"); ! 1180: #else ! 1181: v_sleep(&kbstate, CVTTIN, IVTTIN, SVTTIN, "kb b"); ! 1182: #endif ! 1183: } ! 1184: spl(s); ! 1185: } ! 1186: ! 1187: /* ! 1188: * ship a two byte command to the keyboard ! 1189: */ ! 1190: kb_cmd2(cmd, arg) ! 1191: unsigned cmd, arg; ! 1192: { ! 1193: register int timeout; ! 1194: register int s; ! 1195: ! 1196: s = sphi(); ! 1197: KBDEBUG3(" kb_cmd2(%x, %x)", cmd, arg); ! 1198: while (kbstate != KB_IDLE) ! 1199: #ifdef _I386 ! 1200: x_sleep(&kbstate, pritty, slpriSigCatch, "kb c"); ! 1201: #else ! 1202: v_sleep(&kbstate, CVTTIN, IVTTIN, SVTTIN, "kb c"); ! 1203: #endif ! 1204: kbstate = KB_DOUBLE_1; ! 1205: cmd2 = arg; ! 1206: prev_cmd = cmd; ! 1207: timeout = KBTIMEOUT; ! 1208: while (--timeout > 0 && (inb(KBSTS_CMD) & STS_IBUF_FULL)) ! 1209: ; ! 1210: if (!timeout) ! 1211: printf("kb: command timeout\n"); ! 1212: else { ! 1213: outb(KBDATA, cmd); ! 1214: while (kbstate != KB_IDLE) ! 1215: #ifdef _I386 ! 1216: x_sleep(&kbstate, pritty, slpriSigCatch, "kb d"); ! 1217: #else ! 1218: v_sleep(&kbstate, CVTTIN, IVTTIN, SVTTIN, "kb d"); ! 1219: #endif ! 1220: } ! 1221: spl(s); ! 1222: } ! 1223: ! 1224: /* ! 1225: ============================================================================== ! 1226: ============================================================================== ! 1227: */ ! 1228: ! 1229: int ! 1230: VTttyinit(i) ! 1231: int i; ! 1232: { ! 1233: TTY *tp; ! 1234: ! 1235: /* ! 1236: * get pointer to TTY structure from kernal memory space ! 1237: */ ! 1238: if( (tp = vttty[i] = (TTY *)kalloc(sizeof (TTY))) == NULL ) ! 1239: return(0); ! 1240: PRINTV( " vttty[%d]: @%x, ", i, tp ); ! 1241: ! 1242: #if FAR_TTY ! 1243: /* ! 1244: * get pointers to the buffers pointed to by the TTY structure ! 1245: * from user memory space ! 1246: */ ! 1247: tp->t_buffer = salloc( (fsize_t)NCIB+2*SI_BUFSIZ, SFSYST|SFNSWP ); ! 1248: tp->t_ib = 0; ! 1249: tp->t_rawin.si_buf = NCIB; ! 1250: tp->t_rawout.si_buf = NCIB+SI_BUFSIZ; ! 1251: #endif ! 1252: tp->t_param = NULL; ! 1253: tp->t_start = &mmstart; ! 1254: ! 1255: #ifndef _I386 ! 1256: #if VT_MAJOR == KB_MAJOR ! 1257: tp->t_cs_sel = 0; ! 1258: #else ! 1259: tp->t_cs_sel = cs_sel(); ! 1260: #endif ! 1261: #endif ! 1262: tp->t_ddp = vtdata[i]; ! 1263: PRINTV( "data @%lx\n", tp->t_ddp ); ! 1264: return(1); ! 1265: } ! 1266: ! 1267: vtdatainit(vp) ! 1268: VTDATA *vp; ! 1269: { ! 1270: #ifndef _I386 ! 1271: VT_FARSEG vt_farseg; ! 1272: #endif ! 1273: /* ! 1274: * vtdata init - vmm part ! 1275: */ ! 1276: vp->vmm_invis = -1; /* cursor invisible */ ! 1277: ! 1278: #ifdef _I386 ! 1279: vp->vt_buffer = kalloc( TEXTBLOCK ); ! 1280: vp->vmm_seg = vp->vmm_mseg = ds_sel(); ! 1281: vp->vmm_off = vp->vmm_moff = vp->vt_buffer; ! 1282: #else ! 1283: vp->vt_buffer = salloc ( (fsize_t)TEXTBLOCK, SFSYST|SFNSWP|SFHIGH ); ! 1284: vp->vmm_seg = vp->vmm_mseg = FP_SEG( vp->vt_buffer->vt_faddr ); ! 1285: vp->vmm_off = vp->vmm_moff = FP_OFF( vp->vt_buffer->vt_faddr ); ! 1286: #endif ! 1287: PRINTV( "vt@%x init index %d,%d), seg %x, off %x\n", ! 1288: vp, vp->vt_ind, vp->vmm_mseg, vp->vmm_moff ); ! 1289: /* ! 1290: * vtdata init - vnkb part ! 1291: */ ! 1292: /* Make the first memory block active, if present */ ! 1293: vp->vnkb_lastc = 0; ! 1294: vp->vnkb_fnkeys = 0; ! 1295: vp->vnkb_funkeyp = 0; ! 1296: vp->vnkb_fk_loaded = 0; /* no Fn keys yet */ ! 1297: } ! 1298: ! 1299: /* ! 1300: * Given device number, return index for vtdata[], vttty[], etc. ! 1301: * ! 1302: * Major number must be VT_MAJOR for CPU to get here. ! 1303: * ! 1304: * Minor Number Index Value ! 1305: * ----- ------ ----- ----- ! 1306: * 0000 0000 vtactive ... device (2,0) is the active screen ! 1307: * 0000 0001 0 ! 1308: * 0000 0010 1 ! 1309: * 0000 0011 2 ! 1310: * .... ! 1311: * 0000 1111 14 ! 1312: * ! 1313: * 0100 xxxx xxxx ... color devices only ! 1314: * 0101 xxxx xxxx - (# of color devices found) ... monochrome only ! 1315: * ! 1316: * Return value is in range 0 to vtcount-1 for valid minor numbers, ! 1317: * -1 for invalid minor numbers. ! 1318: */ ! 1319: int ! 1320: vtindex( dev ) ! 1321: dev_t dev; ! 1322: { ! 1323: register int ret = -1; ! 1324: ! 1325: if ( dev & VT_PHYSICAL ) { ! 1326: int hw = ( dev >> 4 ) & 3; ! 1327: int hw_index = dev & 0x0F; ! 1328: ! 1329: if( hw_index < vtHWtable[hw]->found ) ! 1330: ret = vtHWtable[hw]->start + hw_index; ! 1331: } else { ! 1332: int lg_index = dev & 0x0F; ! 1333: ! 1334: if (lg_index == 0) ! 1335: ret = vtactive; ! 1336: if (lg_index > 0 && lg_index <= vtcount ) ! 1337: ret = lg_index-1; ! 1338: } ! 1339: if (ret >= 0) ! 1340: ret %= vtcount; ! 1341: else ! 1342: PRINTV( "vtindex: (%x) %d. invalid !\n", dev, ret ); ! 1343: return ret; ! 1344: } ! 1345: ! 1346: /* ! 1347: * ! 1348: * void ! 1349: * isvtswitch() -- deferred virtual terminal switch ! 1350: * ! 1351: * Action: - save current shift key status ! 1352: * - determine new active virtual terminal ! 1353: * - deactivate shift key status of the current virtual terminal ! 1354: * - deactivate current virtual terminal ! 1355: * - activate shift key status of the new virtual terminal with ! 1356: * the previously saved shift key status ! 1357: * - activate new virtual terminal ! 1358: * ! 1359: * Notes: isvtswitch() was scheduled as a deferred process by ! 1360: * process_key() which is a function called by isrint(). ! 1361: */ ! 1362: void ! 1363: isvtswitch(key_val) ! 1364: { ! 1365: register int new_index, i; ! 1366: unsigned lockshift, nolockshift; ! 1367: VTDATA *vp = vtdata[vtactive]; ! 1368: VTDATA *vp_old, *vp_new; ! 1369: static int vtprevious; ! 1370: ! 1371: T_CON(2, printf("old shift=%x sh_index=%d\n", shift, sh_index)); ! 1372: lockshift = shift & ((1<<scroll)|(1<<num)|(1<<caps)); ! 1373: nolockshift = shift & ~((1<<scroll)|(1<<num)|(1<<caps)); ! 1374: ! 1375: PRINTV( "F%d: %d", key_val, vtactive ); ! 1376: #if 0 ! 1377: if( key_val == VTKEY_HOME ) ! 1378: new_index = 0; ! 1379: else if( key_val == VTKEY_NEXT ) { ! 1380: new_index = vtactive; ! 1381: for( i = 0; i < vtcount; ++i ) { ! 1382: new_index = ++new_index % vtcount; ! 1383: if( vttty[new_index]->t_open ) ! 1384: break; ! 1385: } ! 1386: } else { ! 1387: new_index = vtindex(vtkey_to_dev(key_val)); ! 1388: if( new_index < 0) { ! 1389: putchar( '\007' ); ! 1390: return; ! 1391: } ! 1392: } ! 1393: #else ! 1394: switch (key_val) { ! 1395: case VTKEY_HOME: ! 1396: new_index = 0; ! 1397: break; ! 1398: case VTKEY_NEXT: ! 1399: new_index = vtactive; ! 1400: for( i = 0; i < vtcount; ++i ) { ! 1401: new_index = ++new_index % vtcount; ! 1402: if( vttty[new_index]->t_open ) ! 1403: break; ! 1404: } ! 1405: break; ! 1406: case VTKEY_PREV: ! 1407: new_index = vtactive; ! 1408: for( i = 0; i < vtcount; ++i ) { ! 1409: new_index = (--new_index+vtcount) % vtcount; ! 1410: if( vttty[new_index]->t_open ) ! 1411: break; ! 1412: } ! 1413: break; ! 1414: case VTKEY_TOGL: ! 1415: new_index = vtprevious; ! 1416: break; ! 1417: default: ! 1418: new_index = vtindex(vtkey_to_dev(key_val)); ! 1419: if( new_index < 0) { ! 1420: putchar( '\007' ); ! 1421: return; ! 1422: } ! 1423: } ! 1424: #endif ! 1425: T_CON(8, printf("%d->%d ", vtactive, new_index)); ! 1426: if( new_index == vtactive ) ! 1427: return; ! 1428: ! 1429: /* Save which locking shift states are in effect. */ ! 1430: ! 1431: vp_old = vtdata[vtactive]; ! 1432: vp_new = vtdata[new_index]; ! 1433: ! 1434: vp_old->vnkb_shift = lockshift; ! 1435: vtdeactivate(vp_new, vp_old); /* deactivate old virtual terminal */ ! 1436: ! 1437: /* Restore shift lock state, append current momentary shift state. */ ! 1438: shift = vp_new->vnkb_shift | nolockshift; ! 1439: T_CON(2, printf("new shift=%x sh_index=%d\n", shift, sh_index)); ! 1440: vtactivate(vp_new); /* activate new virtual terminal */ ! 1441: updterminal(new_index); ! 1442: vtprevious = vtactive; ! 1443: vtactive = new_index; /* update vtactive */ ! 1444: } ! 1445: ! 1446: vtdeactivate(vp_new, vp_old) ! 1447: register VTDATA *vp_new, *vp_old; ! 1448: { ! 1449: register i; ! 1450: VTDATA *vpi; ! 1451: ! 1452: /* store old screen contents in memory segment */ ! 1453: FFCOPY( vp_old->vmm_voff, vp_old->vmm_vseg, ! 1454: vp_old->vmm_moff, vp_old->vmm_mseg, TEXTBLOCK ); ! 1455: ! 1456: /* ! 1457: * if changing to another screen on same video board ! 1458: * for all screens on same board as new screen ! 1459: * deactivate, but don't update ! 1460: * else - changing to a screen on different board ! 1461: * for all screens NOT on same board as new screen ! 1462: * deactivate, but don't update ! 1463: */ ! 1464: if ( vp_old->vmm_port == vp_new->vmm_port ) { ! 1465: T_CON(8, printf("deactivate on %x ", vp_new->vmm_port)); ! 1466: for (i = 0; i < vtcount; ++i) { ! 1467: vpi = vtdata[i]; ! 1468: if ( vpi->vmm_port == vp_new->vmm_port ) { ! 1469: /* deactivate, but don't update */ ! 1470: vpi->vmm_invis = ~0; ! 1471: vpi->vmm_visible = VNKB_FALSE; ! 1472: vpi->vmm_seg = vpi->vmm_mseg; ! 1473: vpi->vmm_off = vpi->vmm_moff; ! 1474: if( vpi->vmm_seg == 0 ) ! 1475: printf( "[1]vpi->vmm_seg = 0\n" ); ! 1476: PRINTV( "vt.back %d. seg %x off %x\n", i, ! 1477: vpi->vmm_seg, vpi->vmm_off ); ! 1478: } ! 1479: } ! 1480: } else { ! 1481: T_CON(8, printf("deactivate %x->%x ", ! 1482: vp_old->vmm_port, vp_new->vmm_port)); ! 1483: for (i = 0; i < vtcount; ++i) { ! 1484: vpi = vtdata[i]; ! 1485: if ( (vpi->vmm_port != vp_new->vmm_port) ! 1486: && (vpi->vmm_invis == 0) ) { ! 1487: /* update, but don't deactivate */ ! 1488: vpi->vmm_invis = ~0; ! 1489: updscreen(i); ! 1490: } ! 1491: } ! 1492: } ! 1493: } ! 1494: ! 1495: vtactivate(vp) ! 1496: VTDATA *vp; ! 1497: { ! 1498: register VTDATA *vpi; ! 1499: register i; ! 1500: ! 1501: /* ! 1502: * copy from screen contents from heap segment to video memory ! 1503: * only if necessary ! 1504: */ ! 1505: if ( vp->vmm_visible == VNKB_FALSE ) ! 1506: FFCOPY( vp->vmm_moff, vp->vmm_mseg, ! 1507: vp->vmm_voff, vp->vmm_vseg, TEXTBLOCK ); ! 1508: ! 1509: for (i = 0; i < vtcount; ++i) { ! 1510: vpi = vtdata[i]; ! 1511: if (vpi->vmm_port == vp->vmm_port) { ! 1512: vpi->vmm_invis = -1; ! 1513: vpi->vmm_visible = VNKB_FALSE; ! 1514: vpi->vmm_seg = vpi->vmm_mseg; ! 1515: vpi->vmm_off = vpi->vmm_moff; ! 1516: if( vpi->vmm_seg == 0 ) ! 1517: printf( "[2]vpi->vmm_seg = 0\n" ); ! 1518: PRINTV( "vt.back seg %x off %x\n", ! 1519: vpi->vmm_seg, vpi->vmm_off ); ! 1520: } ! 1521: } ! 1522: /* ! 1523: * Set new active terminal ! 1524: */ ! 1525: vp->vmm_invis = 0; ! 1526: vp->vmm_visible = VNKB_TRUE; ! 1527: vp->vmm_seg = vp->vmm_vseg; ! 1528: vp->vmm_off = vp->vmm_voff; ! 1529: if( vp->vmm_seg == 0 ) ! 1530: printf( "vp->vmm_seg = 0\n" ); ! 1531: } ! 1532: ! 1533: /* ! 1534: * update the terminal to match vtactive ! 1535: */ ! 1536: updterminal(index) ! 1537: int index; ! 1538: { ! 1539: updscreen(index); ! 1540: updleds2(); ! 1541: } ! 1542: ! 1543: #undef si ! 1544: asmdump( cs, ds, es, di, si, bp, sp, bx, dx, cx, i, ip, ax ) ! 1545: int cs, ds, es, di, si, bp, sp, bx, dx, cx, i, ip, ax; ! 1546: { ! 1547: if( vt_verbose < 2 ) ! 1548: return; ! 1549: ! 1550: printf( "asmdump %d: es %x, ds %x, cs:ip %x:%x\n", i, es, ds, cs, ip ); ! 1551: printf( " ax %x, bx %x, cx %x, dx %x\n", ax, bx, cx, dx ); ! 1552: printf( " di %x, si %x, bp %x, sp %d\n", di, si, bp, sp ); ! 1553: #if USING_RS232 ! 1554: if( vt_verbose > 2 ) ! 1555: getchar(); ! 1556: #endif ! 1557: } ! 1558: ! 1559: vtdataprint( vp ) ! 1560: register VTDATA *vp; ! 1561: { ! 1562: if( vt_verbose < 2 ) ! 1563: return; ! 1564: ! 1565: printf( "VTDATA: @%x, esc %x, func %x()\n", ! 1566: vp, vp->vmm_esc, vp->vmm_func ); ! 1567: printf( " hw: port %x, seg %x, off %x\n", ! 1568: vp->vmm_port, vp->vmm_vseg, vp->vmm_voff ); ! 1569: printf( " memory: size %x, seg %x, off %x\n", ! 1570: 0/*vp->vmm_size*/, vp->vmm_mseg, vp->vmm_moff ); ! 1571: printf( " cursor: seg %x, off %x, visible %d\n", ! 1572: vp->vmm_seg, vp->vmm_off, !vp->vmm_invis ); ! 1573: printf( " row %d, col %d = offset %d.\n", ! 1574: vp->vmm_rowl, vp->vmm_col, vp->vmm_pos ); ! 1575: printf( " saved row %d, col %d\n", ! 1576: vp->vmm_srow, vp->vmm_scol ); ! 1577: printf( " screen: visible %d, attr %x, wrap %d, slow %d\n", ! 1578: vp->vmm_visible, vp->vmm_attr, vp->vmm_wrap, vp->vmm_slow ); ! 1579: printf( " row base %d, end %d, limit %d\n", ! 1580: vp->vmm_brow, vp->vmm_erow, vp->vmm_lrow ); ! 1581: printf( " row initial base %d, initial end %d\n", ! 1582: vp->vmm_ibrow, vp->vmm_ierow ); ! 1583: #if USING_RS232 ! 1584: if( vt_verbose > 2 ) ! 1585: getchar(); ! 1586: #endif ! 1587: } ! 1588: ! 1589: FFCOPY( src_off, src_seg, dst_off, dst_seg, count ) ! 1590: { ! 1591: register i; ! 1592: ! 1593: #if 0 ! 1594: i = ffcopy( src_off, src_seg, dst_off, dst_seg, count ); ! 1595: #else ! 1596: for( i = 0; i < count; i += 2 ) { ! 1597: register word = ffword( src_off, src_seg ); ! 1598: sfword( dst_off, dst_seg, word ); ! 1599: src_off += 2; ! 1600: dst_off += 2; ! 1601: } ! 1602: #endif ! 1603: return i; ! 1604: } ! 1605: ! 1606: /* ! 1607: * Given a function key number (e.g. vt0), ! 1608: * return the corresponding minor device number. ! 1609: * ! 1610: * Assume valid key number (VTKEY(fnum) is true) by the time we get here. ! 1611: */ ! 1612: int ! 1613: vtkey_to_dev(fnum) ! 1614: int fnum; ! 1615: { ! 1616: if (fnum >=vt0 && fnum <= vt15) ! 1617: return fnum-vt0+1; ! 1618: if (fnum >=color0 && fnum <= color15) ! 1619: return (fnum-color0)|(VT_PHYSICAL|VT_HW_COLOR); ! 1620: if (fnum >=mono0 && fnum <= mono15) ! 1621: return (fnum-mono0)|(VT_PHYSICAL|VT_HW_MONO); ! 1622: printf("vtkey_to_dev(%d)! ", fnum); ! 1623: return 0; ! 1624: } ! 1625: ! 1626: #if GREEKFIX ! 1627: /* ! 1628: * ToggleGreek() must be called every time Alt+Enter is pressed. ! 1629: * It toggles the "InGreek" flag and resets all others. ! 1630: * ! 1631: * ToGreek(unsigned *) returns FALSE if val is a dead key (Greek ! 1632: * accent key) that must NOT be processed, TRUE otherwise. ! 1633: */ ! 1634: ! 1635: static int InGreek=0; ! 1636: static int Tonos=0; ! 1637: static int Dialytika=0; ! 1638: ! 1639: static int UpperG[26] = { ! 1640: 128,129,150,131,132,148,130,134,136,141,137,138,139, ! 1641: 140,142,143,58,144,145,146,135,151,145,149,147,133}; ! 1642: ! 1643: static int LowerG[26] = { ! 1644: 152,153,175,155,156,173,154,158,160,165,161,162,163, ! 1645: 164,166,167,59,168,169,171,159,224,170,174,172,157}; ! 1646: ! 1647: static int VoyelG[7] = {152,156,158,160,166,172,224}; ! 1648: static int TonedG[7] = {225,226,227,229,230,231,233}; ! 1649: ! 1650: void ! 1651: ToggleGreek() ! 1652: { ! 1653: InGreek ^= 1; ! 1654: Tonos = 0; ! 1655: Dialytika = 0; ! 1656: return; ! 1657: } ! 1658: ! 1659: int ! 1660: ToGreek(ip) ! 1661: unsigned *ip; ! 1662: { ! 1663: unsigned i,j; ! 1664: ! 1665: i = *ip; ! 1666: ! 1667: /* If Not Greek exit */ ! 1668: if(!InGreek) ! 1669: return 1; ! 1670: ! 1671: /* Capture dead keys */ ! 1672: if(i == ';') { ! 1673: Tonos ^= 1; ! 1674: return 0; ! 1675: } ! 1676: ! 1677: if(i == ':') { ! 1678: Dialytika ^= 1; ! 1679: return 0; ! 1680: } ! 1681: ! 1682: /* Check if character translation needed */ ! 1683: if ((i >= 'A') && (i <= 'Z')) ! 1684: i = UpperG[i - 'A']; ! 1685: else if ((i >= 'a') && (i <= 'z')) ! 1686: i = LowerG[i - 'a']; ! 1687: else ! 1688: return 1; ! 1689: ! 1690: /* Check if any accent has to be added */ ! 1691: if (Tonos) { ! 1692: Tonos = 0; ! 1693: for(j = 0;j < 7;j++) ! 1694: if (i == VoyelG[j]) { ! 1695: i = TonedG[j]; ! 1696: break; ! 1697: } ! 1698: } else if (Dialytika) { ! 1699: Dialytika=0; ! 1700: if (i == 160) ! 1701: i = 228; ! 1702: else if (i == 172) ! 1703: i = 232; ! 1704: } ! 1705: ! 1706: /* Exit point for translated characters */ ! 1707: *(ip) = i; ! 1708: return 1; ! 1709: } ! 1710: ! 1711: #endif /* GREEKFIX */ ! 1712: /* End of nkb.c */
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