![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to vtkb_d.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [MW Coherent from dump] / coherent / b / kernel / io.386|
Return to vtkb_d.c CVS log | Up to [MW Coherent from dump] / coherent / b / kernel / io.386 |
1.1 root 1: /*
2: * Keyboard/display driver for German keyboard.
3: * Coherent, IBM PC/XT/AT (286 and 386).
4: */
5: #include <sys/coherent.h>
6: #ifdef _I386
7: #include <sys/reg.h>
8: #else
9: #include <sys/i8086.h>
10: #endif
11: #include <sys/con.h>
12: #include <sys/devices.h>
13: #include <errno.h>
14: #include <sys/stat.h>
15: #include <sys/tty.h>
16: #include <signal.h>
17: #include <sys/sched.h>
18: #include <sys/silo.h>
19: #include <sys/kb.h>
20: #include <sys/vt.h>
21:
22: #define ISVEC 1 /* Keyboard interrupt vector */
23: #define DEBUG 0
24:
25: #define SPC 0376 /* Special encoding */
26: #define XXX 0377 /* Non-character */
27: #define KBDATA 0x60 /* Keyboard data */
28: #define KBCTRL 0x61 /* Keyboard control */
29: #define KBFLAG 0x80 /* Keyboard reset flag */
30: #define LEDCMD 0xED /* status indicator command */
31: #define KBACK 0xFA /* status indicator acknowledge */
32: #define EXTENDED0 0xE0 /* extended key seq initiator */
33: #define EXTENDED1 0xE1 /* extended key seq initiator */
34:
35: #define KEYUP 0x80 /* Key up change */
36: #define KEYSC 0x7F /* Key scan code mask */
37: #define LSHIFT 0x2A-1 /* Left shift key */
38: #define LSHIFTA 0x2B-1 /* Alternate left-shift key */
39: #define RSHIFT 0x36-1 /* Right shift key */
40: #define CTRLkb 0x1D-1 /* Control key */
41: /*-- #define CAPLOCK 0x1D-1 --*/ /* Control key */
42: #define ALTkb 0x38-1 /* Alt key or ALT GR */
43: #define CAPLOCK 0x3A-1 /* Caps lock key */
44: /*-- #define CTRL 0x3A-1 --*/ /* Caps lock key */
45: #define NUMLOCK 0x45-1 /* Numeric lock key */
46: #define DELETE 0x53-1 /* Del, as in CTRL-ALT-DEL */
47: #define BACKSP 0x0E-1 /* Back space */
48: #define SCRLOCK 0x46-1 /* Scroll lock */
49:
50: /* Shift flags */
51: #define SRS 0x01 /* Right shift key on */
52: #define SLS 0x02 /* Left shift key on */
53: #define CTS 0x04 /* Ctrl key on */
54: #define ALS 0x08 /* Alt key on */
55: #define CPLS 0x10 /* Caps lock on */
56: #define NMLS 0x20 /* Num lock on */
57: #define AKPS 0x40 /* Alternate keypad shift */
58: #define SHFT 0x80 /* Shift key flag */
59: #define AGS 0x100 /* Alt Graphics on */
60:
61: /* Function key information */
62: #define NFKEY 20 /* Number of settable functions */
63: #define NFCHAR 150 /* Number of characters settable */
64: #define NFBUF (NFKEY*2+NFCHAR+1) /* Size of buffer */
65:
66: /*
67: * Functions.
68: */
69: int isrint();
70: int istime();
71: void isbatch();
72: int mmstart();
73: int isopen();
74: int isclose();
75: int isread();
76: int mmwrite();
77: int isioctl();
78: void mmwatch();
79: int isload();
80: int isuload();
81: int ispoll();
82: int nulldev();
83: int nonedev();
84:
85: /*
86: * Configuration table.
87: */
88: CON iscon ={
89: DFCHR|DFPOL, /* Flags */
90: KB_MAJOR, /* Major index */
91: isopen, /* Open */
92: isclose, /* Close */
93: nulldev, /* Block */
94: isread, /* Read */
95: mmwrite, /* Write */
96: isioctl, /* Ioctl */
97: nulldev, /* Powerfail */
98: mmwatch, /* Timeout */
99: isload, /* Load */
100: isuload, /* Unload */
101: ispoll /* Poll */
102: };
103:
104: /*
105: * Flag indicating turbo machine.
106: */
107: int isturbo = 0;
108:
109: /*
110: ==============================================================================
111: ==============================================================================
112: */
113: /* constants for vtdata[] */
114: #define VT_VGAPORT 0x3D4
115: #define VT_MONOPORT 0x3B4
116:
117: #ifdef _I386
118: #define VT_MONOBASE SEG_VIDEOa
119: #define VT_VGABASE SEG_VIDEOb
120: #else
121: #define VT_MONOBASE 0xB000
122: #define VT_VGABASE 0xB800
123: #endif
124:
125: /*
126: Patchable table entrys,
127: we go indirect in order to produce a label which can be addressed
128: */
129: HWentry VTVGA = { 4, 0, VT_VGAPORT, { 0, VT_VGABASE }, { 25, 80 } };
130: HWentry VTMONO = { 4, 0, VT_MONOPORT, { 0, VT_MONOBASE }, { 25, 80 } };
131:
132: HWentry *vtHWtable[] = {
133: VTVGA, /* VGA followed by MONO is compatible to DOS */
134: VTMONO,
135: 0 /* MUST STAY AS LAST ELEMENT !!! */
136: };
137:
138: extern int mminit();
139: static VTDATA const_vtdata = {
140: mminit, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 23, 24, 0, 0, 0, 23, 0, 0, 1
141: };
142:
143: /* later this should be dynamic */
144: VTDATA *vtconsole, **vtdata;
145:
146: int vtcount, vtmax;
147: extern int vtactive;
148: int vt_verbose = { 0 };
149: int vt_opened = { 0 };
150:
151: /* Terminal structure. */
152: TTY **vttty;
153:
154: /*
155: ==============================================================================
156: ==============================================================================
157: */
158:
159: static silo_t in_silo;
160:
161: /*
162: * State variables.
163: */
164: int islock; /* Keyboard locked flag */
165: int isbusy; /* Raw input conversion busy */
166: static unsigned shift; /* Overall shift state */
167: static char scrollkb; /* Scroll lock state */
168: static char lshiftkb = LSHIFT; /* Left shift alternate state */
169: static char isfbuf[NFBUF]; /* Function key values */
170: static char *isfval[NFKEY]; /* Function key string pointers */
171: static int ledcmd; /* LED update command flag */
172: static int extended; /* extended key scan count */
173: static char extmode; /* use extended mode for this key */
174: static char ext0seen; /* 0xE0 prefix seen */
175: static char fk_loaded; /* true == funcion keys resident */
176:
177: /*
178: * Tables for converting key code to ASCII.
179: * lmaptab specifies unshifted conversion,
180: * umaptab specifies shifted conversion,
181: * smaptab specifies the shift states which are active.
182: * An entry of XXX says the key is dead.
183: * An entry of SPC requires further processing.
184: *
185: * Key codes:
186: * ESC .. <- == 1 .. 14
187: * -> .. \n == 15 .. 28
188: * CTRL .. ` == 29 .. 41
189: * ^Shift .. PrtSc == 42 .. 55
190: * ALT .. CapsLock == 56 .. 58
191: * F1 .. F10 == 59 .. 68
192: * NumLock .. Del == 69 .. 83
193: * ISO, F11, F12 == 86 .. 88
194: */
195: unsigned char agmaptab[] ={ /* Alt Gr */
196: XXX, XXX,'\375','\374',XXX, XXX, XXX, /* 1 - 7 */
197: '{', '[', ']', '}', '\\', XXX, XXX, XXX, /* 8 - 15 */
198: '@', XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 16 - 23 */
199: XXX, XXX, XXX, '~', XXX, XXX, XXX, XXX, /* 24 - 31 */
200: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 32 - 39 */
201: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 40 - 47 */
202: XXX, XXX,'\346', XXX, XXX, XXX, XXX, XXX, /* 48 - 55 */
203: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 56 - 63 */
204: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 64 - 71 */
205: XXX, XXX, XXX, XXX, XXX, XXX, XXX, XXX, /* 72 - 79 */
206: XXX, XXX, XXX, XXX, XXX, XXX, '|', XXX, /* 80 - 87 */
207: XXX /* 88 */
208: };
209:
210: static unsigned char lmaptab[] ={
211: '\33', '1', '2', '3', '4', '5', '6', /* 1 - 7 */
212: '7', '8', '9', '0','\341','\'', '\b', '\t', /* 8 - 15 */
213: 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* 16 - 23 */
214: 'o', 'p','\201', '+', '\r', XXX, 'a', 's', /* 24 - 31 */
215: 'd', 'f', 'g', 'h', 'j', 'k', 'l','\224', /* 32 - 39 */
216: '\204','^', XXX, '#', 'y', 'x', 'c', 'v', /* 40 - 47 */
217: 'b', 'n', 'm', ',', '.', SPC, XXX, SPC, /* 48 - 55 */
218: XXX, ' ', XXX, SPC, SPC, SPC, SPC, SPC, /* 56 - 63 */
219: SPC, SPC, SPC, SPC, SPC, SPC, SPC, SPC, /* 64 - 71 */
220: SPC, SPC, '-', SPC, SPC, SPC, '+', SPC, /* 72 - 79 */
221: SPC, SPC, SPC, SPC, XXX, XXX, '<', XXX, /* 80 - 87 */
222: XXX /* 88 */
223: };
224:
225: static unsigned char umaptab[] ={
226: '\33', '!', '"','\025', '$', '%', '&', /* 1 - 7 */
227: '/', '(', ')', '=', '?', '`', '\b', SPC, /* 8 - 15 */
228: 'Q', 'W', 'E', 'R', 'T', 'Z', 'U', 'I', /* 16 - 23 */
229: 'O', 'P','\232', '*', '\r', XXX, 'A', 'S', /* 24 - 31 */
230: 'D', 'F', 'G', 'H', 'J', 'K', 'L','\231', /* 32 - 39 */
231: '\216','\370',XXX,'\'', 'Y', 'X', 'C', 'V', /* 40 - 47 */
232: 'B', 'N', 'M', ';', ':', SPC, XXX, SPC, /* 48 - 55 */
233: XXX, ' ', XXX, SPC, SPC, SPC, SPC, SPC, /* 56 - 63 */
234: SPC, SPC, SPC, SPC, SPC, SPC, SPC, SPC, /* 64 - 71 */
235: SPC, SPC, '-', SPC, SPC, SPC, '+', SPC, /* 72 - 79 */
236: SPC, SPC, SPC, SPC, XXX, XXX, '>', XXX, /* 80 - 87 */
237: XXX /* 88 */
238: };
239:
240: #define SS0 0 /* No shift */
241: #define SS1 (SLS|SRS|CTS) /* Shift, Ctrl */
242: #define SES (SLS|SRS) /* Shift */
243: #define LET (SLS|SRS|CPLS|CTS) /* Shift, Caps, Ctrl */
244: #define KEY (SLS|SRS|NMLS|AKPS) /* Shift, Num, Alt keypad */
245:
246: static unsigned char smaptab[] ={
247: SS0, SES, SS1, SES, SES, SES, SS1, /* 1 - 7 */
248: SES, SES, SES, SES, SS1, SES, CTS, SES, /* 8 - 15 */
249: LET, LET, LET, LET, LET, LET, LET, LET, /* 16 - 23 */
250: LET, LET, SS1, SS1, CTS, SHFT, LET, LET, /* 24 - 31 */
251: LET, LET, LET, LET, LET, LET, LET, SES, /* 32 - 39 */
252: SES, SS1, SHFT, SS1, LET, LET, LET, LET, /* 40 - 47 */
253: LET, LET, LET, SES, SES, SES, SHFT, SES, /* 48 - 55 */
254: SHFT, SS1, SHFT, SS0, SS0, SS0, SS0, SS0, /* 56 - 63 */
255: SS0, SS0, SS0, SS0, SS0, SHFT, KEY, KEY, /* 64 - 71 */
256: KEY, KEY, SS0, KEY, KEY, KEY, SS0, KEY, /* 72 - 79 */
257: KEY, KEY, KEY, KEY, SS0, SS0, SES, SS0, /* 80 - 87 */
258: SS0
259: };
260:
261: /*
262: * Load entry point.
263: * Do reset the keyboard because it gets terribly munged
264: * if you type during the boot.
265: */
266: isload()
267: {
268: register short i; /* was: int i */
269: register HWentry **hw;
270: register VTDATA *vp;
271:
272: /*
273: * Reset keyboard if NOT an XT turbo.
274: */
275: if ( ! isturbo ) {
276: outb(KBCTRL, 0x0C); /* Clock low */
277: for (i = 10582; --i >= 0; ); /* For 20ms */
278: outb(KBCTRL, 0xCC); /* Clock high */
279: for (i = 0; --i != 0; )
280: ;
281: i = inb(KBDATA);
282: outb(KBCTRL, 0xCC); /* Clear keyboard */
283: outb(KBCTRL, 0x4D); /* Enable keyboard */
284: }
285:
286: PRINTV("vtload:\n");
287: fk_loaded = 0;
288:
289: /* figure out what our current max is */
290: for( vtmax = 0, hw = vtHWtable; *hw; ++hw ) {
291: vtmax += (*hw)->count;
292: (*hw)->found = 0; /* assume non-exist */
293: }
294: PRINTV( "vtload: %d screens possible\n", vtmax );
295:
296: vtdata = (VTDATA **) kalloc( vtmax * sizeof( *vtdata ) );
297: if( vtdata == NULL ) {
298: printf( "vtload: unable to obtain vtdata[%d]\n", vtmax );
299: u.u_error = -1;
300: return;
301: }
302: PRINTV( "vtload: obtained vtdata[%d] @%x\n", vtmax, vtdata );
303:
304: vttty = (TTY **) kalloc( vtmax * sizeof( *vttty ) );
305: if( vttty == NULL ) {
306: printf( "vtload: unable to obtain vttty[%d]\n", vtmax );
307: u.u_error = -1;
308: return;
309: }
310: PRINTV( "vtload: obtained vttty[%d] @%x\n", vtmax, vttty );
311:
312: /* determine which video adaptors are present */
313: for( vtcount = 0, hw = vtHWtable; *hw; ++hw ) {
314: /* remember our logical start */
315: (*hw)->start = vtcount;
316: PRINTV( ", start %d\n", vtcount );
317:
318: /* allocate the necessary memory */
319: for ( i = 0; i < (*hw)->count; ++i ) {
320: vp = vtdata[vtcount] = kalloc( sizeof(VTDATA) );
321: PRINTV( " vtdata[%d] = @%x\n", vtcount, vp );
322: if( vp == NULL || !VTttyinit(vtcount) ) {
323: printf("not enough memory for VTDATA\n" );
324: break;
325: }
326:
327: /* fill in appropriately */
328: *vp = const_vtdata;
329: vp->vmm_port = (*hw)->port;
330: vp->vmm_vseg = (*hw)->vidmemory.seg;
331: vp->vmm_voff = (*hw)->vidmemory.off;
332:
333: vp->vt_ind = vtcount;
334: vtdatainit(vp);
335: if (i == 0 ) {
336: vp->vmm_visible = VNKB_TRUE;
337: vp->vmm_seg = vp->vmm_vseg;
338: vp->vmm_off = vp->vmm_voff;
339: updscreen(vtcount);
340: }
341: (*hw)->found++;
342: vtcount++;
343: }
344: }
345:
346: /*
347: * initialize vtconsole
348: */
349: vtconsole = vtdata[vtactive = 0];
350: vtconsole->vmm_invis = 0; /* vtconsole cursor visible */
351:
352: /*
353: * Seize keyboard interrupt.
354: */
355: #ifdef _I386
356: setivec(ISVEC, isrint);
357: #else
358: #if VT_MAJOR == KB_MAJOR
359: setivec(1, isrint);
360: #else
361:
362: /*
363: * Map table and vector to us
364: */
365: i = sphi();
366: PRINTV( "VTload: unload old vector\n" );
367: kcall( Kclrivec, 1 );
368: setivec(1, isrint);
369: spl( i );
370: #endif
371: #endif /* _I386 */
372:
373: /*
374: * Enable mmwatch() invocation every second.
375: */
376: drvl[VT_MAJOR].d_time = 1;
377:
378: /*
379: * Initialize video display.
380: */
381: for ( i = 0; i < vtcount; ++i )
382: mmstart( vttty[i] );
383: }
384:
385: /*
386: * Unload entry point.
387: */
388: isuload()
389: {
390: register int i;
391: register level = sphi();
392:
393: clrivec(ISVEC);
394: #ifndef _I386
395: #if VT_MAJOR != KB_MAJOR
396: kcall( Ksetivec, ISVEC, &Kisrint );
397: #endif
398: #endif
399: spl( level );
400:
401: /* Restore pointers to original state. */
402: vtconsole = vtdata[0];
403: vtconsole->vmm_invis = 0;
404: vtconsole->vmm_visible = VNKB_TRUE;
405:
406: if( vt_opened )
407: printf( "VTclose with %d open screens\n", vt_opened );
408:
409: #ifndef _I386
410: for( i = 0; i < vtcount; ++i ) {
411: PRINTV( "VTuload: free far %x:%x, tty %x\n",
412: vttty[i]->t_buffer->s_faddr, vttty[i] );
413: sfree( vttty[i]->t_buffer );
414: kfree( vttty[i] );
415: sfree( vtdata[i].vt_buffer );
416: }
417: #endif
418: }
419:
420: /*
421: * Default function key strings (terminated by -1 [\377])
422: */
423: static char *deffuncs[] = {
424: "\33[1x\377", /* F1 */
425: "\33[2x\377", /* F2 */
426: "\33[3x\377", /* F3 */
427: "\33[4x\377", /* F4 */
428: "\33[5x\377", /* F5 */
429: "\33[6x\377", /* F6 */
430: "\33[7x\377", /* F7 */
431: "\33[8x\377", /* F8 */
432: "\33[9x\377", /* F9 */
433: "\33[0x\377", /* F10 - historical value */
434: "\33[1y\377", /* F11 */
435: "\33[2y\377", /* F12 */
436: "\33[3y\377", /* F13 */
437: "\33[4y\377", /* F14 */
438: "\33[5y\377", /* F15 */
439: "\33[6y\377", /* F16 */
440: "\33[7y\377", /* F17 */
441: "\33[8y\377", /* F18 */
442: "\33[9y\377", /* F19 */
443: "\33[0y\377" /* F20 */
444: };
445:
446: /*
447: * Open routine.
448: */
449: isopen(dev, mode)
450: dev_t dev;
451: unsigned int mode;
452: {
453: register int s;
454: register TTY *tp;
455: int index = vtindex(dev);
456:
457: PRINTV("isopen: %x\n", dev);
458: if (index < 0 || index >= vtcount) {
459: u.u_error = ENXIO;
460: return;
461: }
462:
463: tp = vttty[index];
464: if ((tp->t_flags&T_EXCL) != 0 && !super()) {
465: u.u_error = ENODEV;
466: return;
467: }
468: ttsetgrp(tp, dev, mode);
469:
470: s = sphi();
471: if (tp->t_open++ == 0) {
472: initkeys(); /* init function keys */
473: tp->t_flags = T_CARR; /* indicate "carrier" */
474: ttopen(tp);
475: }
476: spl(s);
477: #if 0
478: updleds(); /* update keyboard status LEDS */
479: #endif
480: }
481:
482: /* Init function keys */
483: initkeys()
484: { register int i;
485: register char *cp1, *cp2;
486:
487: for (i=0; i<NFKEY; i++)
488: isfval[i] = 0; /* clear function key buffer */
489: cp2 = isfbuf; /* pointer to key buffer */
490: for (i=0; i<NFKEY; i++)
491: { isfval[i] = cp2; /* save pointer to key string */
492: cp1 = deffuncs[i]; /* get init string pointer */
493: while ((*cp2++ = *cp1++) != -1) /* copy key data */
494: if (cp2 >= &isfbuf[NFBUF-3]) /* overflow? */
495: return;
496: }
497: }
498:
499: void isvtswitch(); /* deferred virtual terminal switch */
500:
501: /*
502: * Close a tty.
503: */
504: isclose(dev)
505: {
506: register int s;
507: int index = vtindex(dev);
508: register TTY *tp = vttty[index];
509:
510: if (--tp->t_open == 0)
511: ttclose(tp);
512:
513: }
514:
515: /*
516: * Read routine.
517: */
518: isread(dev, iop)
519: dev_t dev;
520: IO *iop;
521: {
522: int index = vtindex(dev);
523: register TTY *tp = vttty[index];
524:
525: ttread(tp, iop, 0);
526: if (tp->t_oq.cq_cc)
527: mmtime(tp);
528: }
529:
530: /*
531: * Ioctl routine.
532: */
533: isioctl(dev, com, vec)
534: dev_t dev;
535: struct sgttyb *vec;
536: {
537: register int s;
538:
539: switch(com) {
540: case TIOCSETF:
541: case TIOCGETF:
542: isfunction(com, (char *)vec);
543: goto ioc_done;;
544: case TIOCSHIFT: /* switch left-SHIFT and "\" */
545: lshiftkb = LSHIFTA; /* alternate values */
546: lmaptab[41] = '\\';
547: lmaptab[42] = XXX;
548: umaptab[41] = '|';
549: umaptab[42] = XXX;
550: smaptab[41] = SS1;
551: smaptab[42] = SHFT;
552: goto ioc_done;;
553: case TIOCCSHIFT: /* normal (default) left-SHIFT and "\" */
554: lshiftkb = LSHIFT; /* normal values */
555: lmaptab[41] = XXX;
556: lmaptab[42] = '\\';
557: umaptab[41] = XXX;
558: umaptab[42] = '|';
559: smaptab[41] = SHFT;
560: smaptab[42] = SS1;
561: goto ioc_done;;
562: }
563: s = sphi();
564: ttioctl(vttty[vtindex(dev)], com, vec);
565: spl(s);
566:
567: ioc_done:
568: return;
569: }
570:
571: /*
572: * Set and receive the function keys.
573: */
574: isfunction(c, v)
575: int c;
576: char *v;
577: {
578: register char *cp;
579: register int i;
580:
581: if (c == TIOCGETF) {
582: for (cp = isfbuf; cp < &isfbuf[NFBUF]; cp++)
583: putubd(v++, *cp);
584: } else {
585: for (i=0; i<NFKEY; i++) /* zap current settings */
586: isfval[i] = 0;
587: cp = isfbuf; /* pointer to key buffer */
588: for (i=0; i<NFKEY; i++) {
589: isfval[i] = cp; /* save pointer to key string */
590: while ((*cp++ = getubd(v++)) != -1) /* copy key data */
591: if (cp >= &isfbuf[NFBUF-3]) /* overflow? */
592: return;
593: }
594: }
595: }
596:
597:
598: /*
599: * Poll routine.
600: */
601: ispoll( dev, ev, msec )
602: dev_t dev;
603: int ev;
604: int msec;
605: {
606: register TTY *tp = vttty[vtindex(dev)];
607:
608: return ttpoll(tp, ev, msec);
609: }
610:
611: /*
612: * Receive interrupt.
613: */
614: isrint()
615: {
616: register int c;
617: register int s;
618: register int r;
619: int savests;
620: int update_leds = 0;
621:
622: /*
623: * Schedule raw input handler if not already active.
624: */
625: if ( isbusy == 0 ) {
626: isbusy = 1;
627: defer(isbatch, vttty[vtactive]);
628: }
629:
630: /*
631: * Pull character from the data
632: * port. Pulse the KBFLAG in the control
633: * port to reset the data buffer.
634: */
635: r = inb(KBDATA) & 0xFF;
636: c = inb(KBCTRL);
637: outb(KBCTRL, c|KBFLAG);
638: outb(KBCTRL, c);
639: #if KBDEBUG
640: printf("kbd: %d\n", r); /* print scan code/direction */
641: #endif
642: if (ledcmd) {
643: ledcmd = 0;
644: if (r == KBACK) { /* output to status LEDS */
645: c = scrollkb & 1;
646: if (shift & NMLS)
647: c |= 2;
648: if (shift & CPLS)
649: c |= 4;
650: outb(KBDATA, c);
651: }
652: return;
653: }
654: if (extended > 0) { /* if multi-character seq, */
655: --extended; /* ... ignore this char */
656: return;
657: }
658: switch (r) {
659: case EXTENDED0: /* 0xE0 prefix found */
660: ext0seen = 1;
661: return;
662: case EXTENDED1: /* ignore extended sequences */
663: extended = 5;
664: return;
665: case 0xFF: /* Overrun */
666: return;
667: }
668:
669: if (ext0seen) {
670: ext0seen = 0;
671: extmode = 1;
672: } else
673: extmode = 0;
674:
675: c = (r & KEYSC) - 1;
676: /*
677: * Check for reset.
678: */
679: if ((r&KEYUP) == 0 && c == DELETE && (shift&(CTS|ALS)) == (CTS|ALS))
680: boot();
681:
682: /*
683: * Track "shift" keys.
684: */
685: s = smaptab[c];
686: if (s&SHFT) {
687: if (r&KEYUP) { /* "shift" released */
688: if (c == RSHIFT)
689: shift &= ~SRS;
690: else if (c == lshiftkb)
691: shift &= ~SLS;
692: else if (c == CTRLkb)
693: shift &= ~CTS;
694: else if (c == ALTkb)
695: shift &= extmode ? ~AGS : ~ALS;
696: } else { /* "shift" pressed */
697: if (c == lshiftkb)
698: shift |= SLS;
699: else if (c == RSHIFT)
700: shift |= SRS;
701: else if (c == CTRLkb)
702: shift |= CTS;
703: else if (c == ALTkb)
704: shift |= extmode ? AGS : ALS;
705: else if (c == CAPLOCK) {
706: shift ^= CPLS; /* toggle cap lock */
707: updleds();
708: } else if (c == NUMLOCK) {
709: shift ^= NMLS; /* toggle num lock */
710: updleds();
711: }
712: }
713: return;
714: }
715:
716: /*
717: * No other key up codes of interest.
718: */
719: if (r&KEYUP)
720: return;
721:
722: /*
723: * Map character, based on the
724: * current state of the shift, control, alt graphics,
725: * meta (ALT) and lock flags.
726: */
727: if (shift & AGS) /* Alt Graphics ? */
728: c = agmaptab[c];
729: else if (shift & CTS) {
730: if (s == CTS) /* Map Ctrl (BS | NL) */
731: c = (c == BACKSP) ? 0x7F : 0x0A;
732: else if (s==SS1 || s==LET) /* Normal Ctrl map */
733: c = umaptab[c]&0x1F; /* Clear bits 5-6 */
734: else { if (s==KEY || s==SS0)
735: vtnumeric(r);
736: return; /* Ignore this char */
737: }
738: } else if (s &= shift) {
739: if (shift & SES) { /* if shift on */
740: if (s & (CPLS|NMLS)) /* if caps/num lock */
741: c = lmaptab[c]; /* use unshifted */
742: else
743: c = umaptab[c]; /* use shifted */
744: } else { /* if shift not on */
745: if (s & (CPLS|NMLS)) /* if caps/num lock */
746: c = umaptab[c]; /* use shifted */
747: else
748: c = lmaptab[c]; /* use unshifted */
749: }
750: } else
751: c = lmaptab[c]; /* use unshifted */
752:
753: /*
754: * Act on character.
755: */
756: if (c == XXX)
757: return; /* char to ignore */
758:
759: if (c != SPC) { /* not special char? */
760: if (shift & ALS) /* ALT (meta bit)? */
761: c |= 0x80; /* set meta */
762: isin(c); /* send the char */
763: } else
764: update_leds += isspecial(r); /* special chars */
765: if (update_leds) {
766: savests = sphi();
767: outb(KBDATA, LEDCMD);
768: ledcmd = 1;
769: spl(savests);
770: }
771: }
772:
773: /*
774: * Process numeric keypad for virtual terminals.
775: */
776: vtnumeric(c)
777: int c;
778: {
779: switch (c) {
780: case 71: case 72: case 73: /* ctrl 7/8/9 (vt7, vt8, vt9) */
781: defer(isvtswitch, c + 16);
782: break;
783: case 74: /* ctrl - */
784: defer(isvtswitch, vtp);
785: break;
786: case 75: case 76: case 77: /* ctrl 4/5/6 (vt5, vt6, vt7) */
787: defer(isvtswitch, c + 10);
788: break;
789: case 78: /* ctrl + */
790: defer(isvtswitch, vtn);
791: break;
792: case 79: case 80: case 81: /* ctrl 1/2/3 */
793: defer(isvtswitch, c + 2);
794: break;
795: case 82: /* ctrl 0 (vt0) */
796: defer(isvtswitch, vt0);
797: break;
798: case 83: /* ctrl del (toggle) */
799: c = vtt;
800: defer(isvtswitch, vtt);
801: break;
802: }
803: }
804:
805: /*
806: * Handle special input sequences.
807: * The character passed is the key number.
808: *
809: * The keypad is translated by the following table,
810: * the first entry is the normal sequence, the second the shifted,
811: * and the third the alternate keypad sequence.
812: */
813: static char *keypad[][3] = {
814: { "\33[H", "7", "\33?w" }, /* 71 */
815: { "\33[A", "8", "\33?x" }, /* 72 */
816: { "\33[V", "9", "\33?y" }, /* 73 */
817: { "\33[D", "4", "\33?t" }, /* 75 */
818: { "\0337", "5", "\33?u" }, /* 76 */
819: { "\33[C", "6", "\33?v" }, /* 77 */
820: { "\33[24H","1", "\33?q" }, /* 79 */
821: { "\33[B", "2", "\33?r" }, /* 80 */
822: { "\33[U", "3", "\33?s" }, /* 81 */
823: { "\33[@", "0", "\33?p" }, /* 82 */
824: { "\33[P", ".", "\33?n" } /* 83 */
825: };
826:
827: isspecial(c)
828: int c;
829: {
830: register char *cp;
831: register int s;
832: int update_leds = 0;
833:
834: cp = 0;
835:
836: switch (c) {
837: case 15: /* cursor back tab */
838: cp = "\033[Z";
839: break;
840: case 53:
841: if (extmode)
842: cp = "/";
843: else if (shift & SES)
844: cp = "_";
845: else
846: cp = "-";
847: break;
848: case 55: /* ignore PrtScr */
849: if (!extmode)
850: cp = "*";
851: break;
852: case 59: case 60: case 61: case 62: case 63: /* Function keys */
853: case 64: case 65: case 66:
854: /* offset to function string */
855: /* Magic numbers 21 and 61 to mach vtnkb constants */
856: if ( shift & ALS )
857: defer(isvtswitch, c + 21);
858: else
859: cp = isfval[c-59];
860: break;
861: case 67: case 68:
862: /* offset to function string */
863: if ( shift & ALS )
864: defer(isvtswitch, c + 61);
865: else
866: cp = isfval[c-59];
867: break;
868: case 70: /* Scroll Lock -- stop/start output */
869: {
870: static char cbuf[2];
871:
872: cp = &cbuf[0]; /* working buffer */
873: if (!(vttty[vtactive]->t_sgttyb.sg_flags
874: & RAWIN)) { /* not if in RAW mode */
875:
876: ++update_leds;
877: if (vttty[vtactive]->t_flags&T_STOP){/* output stopped? */
878: cbuf[0] = vttty[vtactive]->t_tchars.t_startc;
879: scrollkb = 0;
880: } else {
881: cbuf[0] = vttty[vtactive]->t_tchars.t_stopc;
882: scrollkb = 1;
883: }
884: }
885: break;
886: }
887:
888: case 79: /* 1/End */
889: case 80: /* 2/DOWN */
890: case 81: /* 3/PgDn */
891: case 82: /* 0/Ins */
892: case 83: /* ./Del */
893: --c; /* adjust code */
894: case 75: /* 4/LEFT */
895: case 76: /* 5 */
896: case 77: /* 6/RIGHT */
897: --c; /* adjust code */
898: case 71: /* 7/Home/Clear */
899: case 72: /* 8/UP */
900: case 73: /* 9/PgUp */
901: s = 0; /* start off with normal keypad */
902: if (shift & NMLS) /* num lock? */
903: s = 1; /* set shift pad */
904: if (shift & SES) /* shift? */
905: s ^= 1; /* toggle shift pad */
906: if (shift & AKPS) /* alternate pad? */
907: s = 2; /* set alternate pad */
908: if (extmode) /* not from keypad? */
909: s = 0; /* force normal sequence */
910: cp = keypad[c-71][s]; /* get keypad value */
911: break;
912: }
913: if (cp) /* send string */
914: while ((*cp != 0) && (*cp != -1))
915: isin( *cp++ & 0377 );
916: return update_leds;
917: }
918:
919: /**
920: *
921: * void
922: * ismmfunc( c ) -- process keyboard related output escape sequences
923: * char c;
924: */
925: void
926: ismmfunc(c)
927: register int c;
928: {
929: switch (c) {
930: case 't': /* Enter numlock */
931: shift |= NMLS;
932: updleds(); /* update LED status */
933: break;
934: case 'u': /* Leave numlock */
935: shift &= ~NMLS;
936: updleds(); /* update LED status */
937: break;
938: case '=': /* Enter alternate keypad */
939: shift |= AKPS;
940: break;
941: case '>': /* Exit alternate keypad */
942: shift &= ~AKPS;
943: break;
944: case 'c': /* Reset terminal */
945: islock = 0;
946: shift = 0;
947: initkeys();
948: updleds(); /* update LED status */
949: break;
950: }
951: }
952:
953: /**
954: *
955: * void
956: * isin( c ) -- append character to raw input silo
957: * char c;
958: */
959: static
960: isin( c )
961: register int c;
962: {
963: int cache_it = 1;
964: TTY * tp = vttty[vtactive];
965:
966: /*
967: * If using software incoming flow control, process and
968: * discard t_stopc and t_startc.
969: */
970: if (ISIXON) {
971: #if _I386
972: if (ISSTART || (ISIXANY && ISXSTOP)) {
973: tp->t_flags &= ~(T_STOP | T_XSTOP);
974: ttstart(tp);
975: cache_it = 0;
976: } else if (ISSTOP) {
977: if ((tp->t_flags&T_STOP) == 0)
978: tp->t_flags |= (T_STOP | T_XSTOP);
979: cache_it = 0;
980: }
981: #else
982: if (ISSTOP) {
983: if ((tp->t_flags&T_STOP) == 0)
984: tp->t_flags |= T_STOP;
985: cache_it = 0;
986: }
987: if (ISSTART) {
988: tp->t_flags &= ~T_STOP;
989: ttstart(tp);
990: cache_it = 0;
991: }
992: #endif
993: }
994: /*
995: * If the tty is not open the character is
996: * just tossed away.
997: */
998: if (vttty[vtactive]->t_open == 0)
999: return;
1000:
1001:
1002: /*
1003: * Cache received character.
1004: */
1005: if (cache_it) {
1006: in_silo.si_buf[ in_silo.si_ix ] = c;
1007:
1008: if ( ++in_silo.si_ix >= sizeof(in_silo.si_buf) )
1009: in_silo.si_ix = 0;
1010: }
1011: }
1012:
1013: /**
1014: *
1015: * void
1016: * isbatch() -- raw input conversion routine
1017: *
1018: * Action: Enable the video display.
1019: * Canonize the raw input silo.
1020: *
1021: * Notes: isbatch() was scheduled as a deferred process by isrint().
1022: */
1023: static void
1024: isbatch( tp )
1025: register TTY * tp;
1026: {
1027: register int c;
1028: static int lastc;
1029: VTDATA *vp = tp->t_ddp;
1030:
1031: /*
1032: * Ensure video display is enabled.
1033: */
1034: if (vp->vmm_visible)
1035: mm_von(vp);
1036:
1037: isbusy = 0;
1038:
1039: /*
1040: * Process all cached characters.
1041: */
1042: while ( in_silo.si_ix != in_silo.si_ox ) {
1043:
1044: /*
1045: * Get next cached char.
1046: */
1047: c = in_silo.si_buf[ in_silo.si_ox ];
1048:
1049: if ( in_silo.si_ox >= sizeof(in_silo.si_buf) - 1 )
1050: in_silo.si_ox = 0;
1051: else
1052: in_silo.si_ox++;
1053:
1054: if ( (islock == 0) || ISINTR || ISQUIT ) {
1055: ttin( tp, c );
1056: }
1057:
1058: else if ( (c == 'b') && (lastc == '\033') ) {
1059: islock = 0;
1060: ttin( tp, lastc );
1061: ttin( tp, c );
1062: }
1063:
1064: else if ( (c == 'c') && (lastc == '\033') ) {
1065: ttin( tp, lastc );
1066: ttin( tp, c );
1067: }
1068:
1069: else
1070: putchar('\007');
1071:
1072: lastc = c;
1073: }
1074: }
1075:
1076: /*
1077: * update the keyboard status LEDS
1078: */
1079: updleds()
1080: {
1081: int s;
1082:
1083: s = sphi();
1084: outb(KBDATA, LEDCMD);
1085: ledcmd = 1;
1086: spl(s);
1087: }
1088:
1089: /*
1090: * unlock the scroll in case an interrupt character is received
1091: */
1092: kbunscroll()
1093: {
1094: scrollkb = 0;
1095: updleds();
1096: }
1097: int
1098: VTttyinit(i)
1099: int i;
1100: {
1101: TTY *tp;
1102:
1103: /*
1104: * get pointer to TTY structure from kernal memory space
1105: */
1106: if( (tp = vttty[i] = (TTY *)kalloc(sizeof (TTY))) == NULL )
1107: return(0);
1108: PRINTV( " vttty[%d]: @%x, ", i, tp );
1109:
1110: #if FAR_TTY
1111: /*
1112: * get pointers to the buffers pointed to by the TTY structure
1113: * from user memory space
1114: */
1115: tp->t_buffer = salloc( (fsize_t)NCIB+2*SI_BUFSIZ, SFSYST|SFNSWP );
1116: tp->t_ib = 0;
1117: tp->t_rawin.si_buf = NCIB;
1118: tp->t_rawout.si_buf = NCIB+SI_BUFSIZ;
1119: #endif
1120: tp->t_param = NULL;
1121: tp->t_start = &mmstart;
1122:
1123: #ifndef _I386
1124: #if VT_MAJOR == KB_MAJOR
1125: tp->t_cs_sel = 0;
1126: #else
1127: tp->t_cs_sel = cs_sel();
1128: #endif
1129: #endif
1130: tp->t_ddp = vtdata[i];
1131: PRINTV( "data @%lx\n", tp->t_ddp );
1132: return(1);
1133: }
1134:
1135: vtdatainit(vp)
1136: VTDATA *vp;
1137: {
1138: #ifndef _I386
1139: VT_FARSEG vt_farseg;
1140: #endif
1141: /*
1142: * vtdata init - vmm part
1143: */
1144: vp->vmm_invis = -1; /* cursor invisible */
1145:
1146: #ifdef _I386
1147: vp->vt_buffer = kalloc( TEXTBLOCK );
1148: vp->vmm_seg = vp->vmm_mseg = ds_sel();
1149: vp->vmm_off = vp->vmm_moff = vp->vt_buffer;
1150: #else
1151: vp->vt_buffer = salloc ( (fsize_t)TEXTBLOCK, SFSYST|SFNSWP|SFHIGH );
1152: vp->vmm_seg = vp->vmm_mseg = FP_SEG( vp->vt_buffer->vt_faddr );
1153: vp->vmm_off = vp->vmm_moff = FP_OFF( vp->vt_buffer->vt_faddr );
1154: #endif
1155: PRINTV( "vt@%x init index %d,%d), seg %x, off %x\n",
1156: vp, vp->vt_ind, vp->vmm_mseg, vp->vmm_moff );
1157: /*
1158: * vtdata init - vnkb part
1159: */
1160: /* Make the first memory block active, if present */
1161: vp->vnkb_lastc = 0;
1162: vp->vnkb_fnkeys = 0;
1163: vp->vnkb_funkeyp = 0;
1164: vp->vnkb_fk_loaded = 0; /* no Fn keys yet */
1165: }
1166:
1167: /*
1168: * Given device number, return index for vtdata[], vttty[], etc.
1169: *
1170: * Major number must be VT_MAJOR for CPU to get here.
1171: *
1172: * Minor Number Index Value
1173: * ----- ------ ----- -----
1174: * 0000 0000 vtactive ... device (2,0) is the active screen
1175: * 0000 0001 0
1176: * 0000 0010 1
1177: * 0000 0011 2
1178: * ....
1179: * 0000 1111 14
1180: *
1181: * 0100 xxxx xxxx ... color devices only
1182: * 0101 xxxx xxxx - (# of color devices found) ... monochrome only
1183: *
1184: * Return value is in range 0 to vtcount-1 for valid minor numbers,
1185: * -1 for invalid minor numbers.
1186: */
1187: int
1188: vtindex( dev )
1189: dev_t dev;
1190: {
1191: register int ret = -1;
1192:
1193: if ( dev & VT_PHYSICAL ) {
1194: int hw = ( dev >> 4 ) & 3;
1195: int hw_index = dev & 0x0F;
1196:
1197: if( hw_index < vtHWtable[hw]->found )
1198: ret = vtHWtable[hw]->start + hw_index;
1199: } else {
1200: int lg_index = dev & 0x0F;
1201:
1202: if (lg_index == 0)
1203: ret = vtactive;
1204: if (lg_index > 0 && lg_index <= vtcount )
1205: ret = lg_index-1;
1206: }
1207: if (ret >= 0)
1208: ret %= vtcount;
1209: else
1210: PRINTV( "vtindex: (%x) %d. invalid !\n", dev, ret );
1211: return ret;
1212: }
1213:
1214: /*
1215: *
1216: * void
1217: * isvtswitch() -- deferred virtual terminal switch
1218: *
1219: * Action: - save current shift key status
1220: * - determine new active virtual terminal
1221: * - deactivate shift key status of the current virtual terminal
1222: * - deactivate current virtual terminal
1223: * - activate shift key status of the new virtual terminal with
1224: * the previously saved shift key status
1225: * - activate new virtual terminal
1226: *
1227: * Notes: isvtswitch() was scheduled as a deferred process by
1228: * process_key() which is a function called by isrint().
1229: */
1230: void
1231: isvtswitch(key_val)
1232: {
1233: register int new_index, i;
1234: unsigned lockshift, nolockshift;
1235: VTDATA *vp = vtdata[vtactive];
1236: VTDATA *vp_old, *vp_new;
1237: static int vtprevious;
1238:
1239: lockshift = shift & (CPLS | NMLS);
1240: nolockshift = shift & ~(CPLS | NMLS);
1241: PRINTV( "F%d: %d", key_val, vtactive );
1242:
1243: switch (key_val) {
1244: case VTKEY_HOME:
1245: new_index = 0;
1246: break;
1247: case VTKEY_NEXT:
1248: new_index = vtactive;
1249: for( i = 0; i < vtcount; ++i ) {
1250: new_index = ++new_index % vtcount;
1251: if( vttty[new_index]->t_open )
1252: break;
1253: }
1254: break;
1255: case VTKEY_PREV:
1256: new_index = vtactive;
1257: for( i = 0; i < vtcount; ++i ) {
1258: new_index = (--new_index+vtcount) % vtcount;
1259: if( vttty[new_index]->t_open )
1260: break;
1261: }
1262: break;
1263: case VTKEY_TOGL:
1264: new_index = vtprevious;
1265: break;
1266: default:
1267: new_index = vtindex(vtkey_to_dev(key_val));
1268: if( new_index < 0) {
1269: putchar( '\007' );
1270: return;
1271: }
1272: }
1273:
1274: T_CON(8, printf("%d->%d ", vtactive, new_index));
1275: if( new_index == vtactive )
1276: return;
1277:
1278: /* Save which locking shift states are in effect. */
1279:
1280: vp_old = vtdata[vtactive];
1281: vp_new = vtdata[new_index];
1282:
1283: vp_old->vnkb_shift = lockshift;
1284: vtdeactivate(vp_new, vp_old); /* deactivate old virtual terminal */
1285:
1286: /* Restore shift lock state, append current momentary shift state. */
1287: shift = vp_new->vnkb_shift | nolockshift;
1288:
1289: vtactivate(vp_new); /* activate new virtual terminal */
1290: updterminal(new_index);
1291: vtprevious = vtactive;
1292: vtactive = new_index; /* update vtactive */
1293: }
1294:
1295: vtdeactivate(vp_new, vp_old)
1296: register VTDATA *vp_new, *vp_old;
1297: {
1298: register i;
1299: VTDATA *vpi;
1300:
1301: /* store old screen contents in memory segment */
1302: FFCOPY( vp_old->vmm_voff, vp_old->vmm_vseg,
1303: vp_old->vmm_moff, vp_old->vmm_mseg, TEXTBLOCK );
1304:
1305: /*
1306: * if changing to another screen on same video board
1307: * for all screens on same board as new screen
1308: * deactivate, but don't update
1309: * else - changing to a screen on different board
1310: * for all screens NOT on same board as new screen
1311: * deactivate, but don't update
1312: */
1313: if ( vp_old->vmm_port == vp_new->vmm_port ) {
1314: T_CON(8, printf("deactivate on %x ", vp_new->vmm_port));
1315: for (i = 0; i < vtcount; ++i) {
1316: vpi = vtdata[i];
1317: if ( vpi->vmm_port == vp_new->vmm_port ) {
1318: /* deactivate, but don't update */
1319: vpi->vmm_invis = ~0;
1320: vpi->vmm_visible = VNKB_FALSE;
1321: vpi->vmm_seg = vpi->vmm_mseg;
1322: vpi->vmm_off = vpi->vmm_moff;
1323: if( vpi->vmm_seg == 0 )
1324: printf( "[1]vpi->vmm_seg = 0\n" );
1325: PRINTV( "vt.back %d. seg %x off %x\n", i,
1326: vpi->vmm_seg, vpi->vmm_off );
1327: }
1328: }
1329: } else {
1330: T_CON(8, printf("deactivate %x->%x ",
1331: vp_old->vmm_port, vp_new->vmm_port));
1332: for (i = 0; i < vtcount; ++i) {
1333: vpi = vtdata[i];
1334: if ( (vpi->vmm_port != vp_new->vmm_port)
1335: && (vpi->vmm_invis == 0) ) {
1336: /* update, but don't deactivate */
1337: vpi->vmm_invis = ~0;
1338: updscreen(i);
1339: }
1340: }
1341: }
1342: }
1343:
1344: vtactivate(vp)
1345: VTDATA *vp;
1346: {
1347: register VTDATA *vpi;
1348: register i;
1349:
1350: /*
1351: * copy from screen contents from heap segment to video memory
1352: * only if necessary
1353: */
1354: if ( vp->vmm_visible == VNKB_FALSE )
1355: FFCOPY( vp->vmm_moff, vp->vmm_mseg,
1356: vp->vmm_voff, vp->vmm_vseg, TEXTBLOCK );
1357:
1358: for (i = 0; i < vtcount; ++i) {
1359: vpi = vtdata[i];
1360: if (vpi->vmm_port == vp->vmm_port) {
1361: vpi->vmm_invis = -1;
1362: vpi->vmm_visible = VNKB_FALSE;
1363: vpi->vmm_seg = vpi->vmm_mseg;
1364: vpi->vmm_off = vpi->vmm_moff;
1365: if( vpi->vmm_seg == 0 )
1366: printf( "[2]vpi->vmm_seg = 0\n" );
1367: PRINTV( "vt.back seg %x off %x\n",
1368: vpi->vmm_seg, vpi->vmm_off );
1369: }
1370: }
1371: /*
1372: * Set new active terminal
1373: */
1374: vp->vmm_invis = 0;
1375: vp->vmm_visible = VNKB_TRUE;
1376: vp->vmm_seg = vp->vmm_vseg;
1377: vp->vmm_off = vp->vmm_voff;
1378: if( vp->vmm_seg == 0 )
1379: printf( "vp->vmm_seg = 0\n" );
1380: }
1381:
1382: /*
1383: * update the terminal to match vtactive
1384: */
1385: updterminal(index)
1386: int index;
1387: {
1388: updscreen(index);
1389: updleds();
1390: }
1391:
1392: #undef si
1393: asmdump( cs, ds, es, di, si, bp, sp, bx, dx, cx, i, ip, ax )
1394: int cs, ds, es, di, si, bp, sp, bx, dx, cx, i, ip, ax;
1395: {
1396: if( vt_verbose < 2 )
1397: return;
1398:
1399: printf( "asmdump %d: es %x, ds %x, cs:ip %x:%x\n", i, es, ds, cs, ip );
1400: printf( " ax %x, bx %x, cx %x, dx %x\n", ax, bx, cx, dx );
1401: printf( " di %x, si %x, bp %x, sp %d\n", di, si, bp, sp );
1402: #if USING_RS232
1403: if( vt_verbose > 2 )
1404: getchar();
1405: #endif
1406: }
1407:
1408: vtdataprint( vp )
1409: register VTDATA *vp;
1410: {
1411: if( vt_verbose < 2 )
1412: return;
1413:
1414: printf( "VTDATA: @%x, esc %x, func %x()\n",
1415: vp, vp->vmm_esc, vp->vmm_func );
1416: printf( " hw: port %x, seg %x, off %x\n",
1417: vp->vmm_port, vp->vmm_vseg, vp->vmm_voff );
1418: printf( " memory: size %x, seg %x, off %x\n",
1419: 0/*vp->vmm_size*/, vp->vmm_mseg, vp->vmm_moff );
1420: printf( " cursor: seg %x, off %x, visible %d\n",
1421: vp->vmm_seg, vp->vmm_off, !vp->vmm_invis );
1422: printf( " row %d, col %d = offset %d.\n",
1423: vp->vmm_rowl, vp->vmm_col, vp->vmm_pos );
1424: printf( " saved row %d, col %d\n",
1425: vp->vmm_srow, vp->vmm_scol );
1426: printf( " screen: visible %d, attr %x, wrap %d, slow %d\n",
1427: vp->vmm_visible, vp->vmm_attr, vp->vmm_wrap, vp->vmm_slow );
1428: printf( " row base %d, end %d, limit %d\n",
1429: vp->vmm_brow, vp->vmm_erow, vp->vmm_lrow );
1430: printf( " row initial base %d, initial end %d\n",
1431: vp->vmm_ibrow, vp->vmm_ierow );
1432: #if USING_RS232
1433: if( vt_verbose > 2 )
1434: getchar();
1435: #endif
1436: }
1437:
1438: FFCOPY( src_off, src_seg, dst_off, dst_seg, count )
1439: {
1440: register i;
1441:
1442: #if 0
1443: i = ffcopy( src_off, src_seg, dst_off, dst_seg, count );
1444: #else
1445: for( i = 0; i < count; i += 2 ) {
1446: register word = ffword( src_off, src_seg );
1447: sfword( dst_off, dst_seg, word );
1448: src_off += 2;
1449: dst_off += 2;
1450: }
1451: #endif
1452: return i;
1453: }
1454:
1455: /*
1456: * Given a function key number (e.g. vt0),
1457: * return the corresponding minor device number.
1458: *
1459: * Assume valid key number (VTKEY(fnum) is true) by the time we get here.
1460: */
1461: int
1462: vtkey_to_dev(fnum)
1463: int fnum;
1464: {
1465: if (fnum >=vt0 && fnum <= vt15)
1466: return fnum-vt0+1;
1467: if (fnum >=color0 && fnum <= color15)
1468: return (fnum-color0)|(VT_PHYSICAL|VT_HW_COLOR);
1469: if (fnum >=mono0 && fnum <= mono15)
1470: return (fnum-mono0)|(VT_PHYSICAL|VT_HW_MONO);
1471: printf("vtkey_to_dev(%d)! ", fnum);
1472: return 0;
1473: }
1474: /* End of vtkb_d.c */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.