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1.1 nbrk 1: /* $OpenBSD: btkbd.c,v 1.1 2007/07/27 16:52:24 gwk Exp $ */
2: /* $NetBSD: btkbd.c,v 1.7 2007/07/09 21:00:31 ad Exp $ */
3:
4: /*-
5: * Copyright (c) 2006 Itronix Inc.
6: * All rights reserved.
7: *
8: * Written by Iain Hibbert for Itronix Inc.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. The name of Itronix Inc. may not be used to endorse
19: * or promote products derived from this software without specific
20: * prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
26: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
29: * ON ANY THEORY OF LIABILITY, WHETHER IN
30: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32: * POSSIBILITY OF SUCH DAMAGE.
33: */
34:
35: /*
36: * based on dev/usb/ukbd.c
37: */
38:
39: #include <sys/param.h>
40: #include <sys/conf.h>
41: #include <sys/device.h>
42: #include <sys/kernel.h>
43: #include <sys/proc.h>
44: #include <sys/systm.h>
45:
46: #include <netbt/bluetooth.h>
47:
48: #include <dev/bluetooth/bthid.h>
49: #include <dev/bluetooth/bthidev.h>
50:
51: #include <dev/usb/hid.h>
52: #include <dev/usb/usb.h>
53: #include <dev/usb/usbhid.h>
54:
55: #include <dev/wscons/wsconsio.h>
56: #include <dev/wscons/wskbdvar.h>
57: #include <dev/wscons/wsksymdef.h>
58: #include <dev/wscons/wsksymvar.h>
59:
60: #define MAXKEYCODE 6
61: #define MAXMOD 8 /* max 32 */
62: #define MAXKEYS (MAXMOD + (2 * MAXKEYCODE))
63:
64: struct btkbd_data {
65: uint32_t modifiers;
66: uint8_t keycode[MAXKEYCODE];
67: };
68:
69: struct btkbd_mod {
70: uint32_t mask;
71: uint8_t key;
72: };
73:
74: struct btkbd_softc {
75: struct bthidev sc_hidev; /* device+ */
76: struct device *sc_wskbd; /* child */
77: int sc_enabled;
78:
79: int (*sc_output) /* output method */
80: (struct bthidev *, uint8_t *, int);
81:
82: /* stored data */
83: struct btkbd_data sc_odata;
84: struct btkbd_data sc_ndata;
85:
86: /* input reports */
87: int sc_nmod;
88: struct hid_location sc_modloc[MAXMOD];
89: struct btkbd_mod sc_mods[MAXMOD];
90:
91: int sc_nkeycode;
92: struct hid_location sc_keycodeloc;
93:
94: /* output reports */
95: struct hid_location sc_numloc;
96: struct hid_location sc_capsloc;
97: struct hid_location sc_scroloc;
98: int sc_leds;
99:
100: #ifdef WSDISPLAY_COMPAT_RAWKBD
101: int sc_rawkbd;
102: #ifdef BTKBD_REPEAT
103: struct timeout sc_repeat;
104: int sc_nrep;
105: char sc_rep[MAXKEYS];
106: #endif
107: #endif
108: };
109:
110: int btkbd_match(struct device *, struct cfdata *, void *);
111: void btkbd_attach(struct device *, struct device *, void *);
112: int btkbd_detach(struct device *, int);
113:
114: struct cfdriver btkbd_cd = {
115: NULL, "btkbd", DV_DULL
116: };
117:
118: const struct cfattach btkbd_ca = {
119: sizeof(struct btkbd_softc),
120: btkbd_match,
121: btkbd_attach,
122: btkbd_detach,
123: };
124:
125: int btkbd_enable(void *, int);
126: void btkbd_set_leds(void *, int);
127: int btkbd_ioctl(void *, unsigned long, void *, int, struct lwp *);
128:
129: const struct wskbd_accessops btkbd_accessops = {
130: btkbd_enable,
131: btkbd_set_leds,
132: btkbd_ioctl
133: };
134:
135: /* wskbd(4) keymap data */
136: extern const struct wscons_keydesc ukbd_keydesctab[];
137:
138: const struct wskbd_mapdata btkbd_keymapdata = {
139: ukbd_keydesctab,
140: #if defined(BTKBD_LAYOUT)
141: BTKBD_LAYOUT,
142: #elif defined(PCKBD_LAYOUT)
143: PCKBD_LAYOUT,
144: #else
145: KB_US,
146: #endif
147: };
148:
149: /* bthid methods */
150: void btkbd_input(struct bthidev *, uint8_t *, int);
151:
152: /* internal prototypes */
153: const char *btkbd_parse_desc(struct btkbd_softc *, int, const void *, int);
154:
155: #ifdef WSDISPLAY_COMPAT_RAWKBD
156: #ifdef BTKBD_REPEAT
157: void btkbd_repeat(void *);
158: #endif
159: #endif
160:
161:
162: int
163: btkbd_match(struct device *self, struct cfdata *cfdata, void *aux)
164: {
165: struct bthidev_attach_args *ba = aux;
166:
167: if (hid_is_collection(ba->ba_desc, ba->ba_dlen, ba->ba_id,
168: HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_KEYBOARD)))
169: return 1;
170:
171: return 0;
172: }
173:
174: void
175: btkbd_attach(struct device *parent, struct device *self, void *aux)
176: {
177: struct btkbd_softc *sc = (struct btkbd_softc *)self;
178: struct bthidev_attach_args *ba = aux;
179: struct wskbddev_attach_args wska;
180: const char *parserr;
181:
182: sc->sc_output = ba->ba_output;
183: ba->ba_input = btkbd_input;
184:
185: parserr = btkbd_parse_desc(sc, ba->ba_id, ba->ba_desc, ba->ba_dlen);
186: if (parserr != NULL) {
187: printf("%s\n", parserr);
188: return;
189: }
190:
191: printf("\n");
192:
193: #ifdef WSDISPLAY_COMPAT_RAWKBD
194: #ifdef BTKBD_REPEAT
195: timeout_set(&sc->sc_repeat, NULL, NULL);
196: /* callout_setfunc(&sc->sc_repeat, btkbd_repeat, sc); */
197: #endif
198: #endif
199:
200: wska.console = 0;
201: wska.keymap = &btkbd_keymapdata;
202: wska.accessops = &btkbd_accessops;
203: wska.accesscookie = sc;
204:
205: sc->sc_wskbd = config_found((struct device *)sc, &wska, wskbddevprint);
206: }
207:
208: int
209: btkbd_detach(struct device *self, int flags)
210: {
211: struct btkbd_softc *sc = (struct btkbd_softc *)self;
212: int err = 0;
213:
214: #ifdef WSDISPLAY_COMPAT_RAWKBD
215: #ifdef BTKBD_REPEAT
216: timeout_del(&sc->sc_repeat);
217: #endif
218: #endif
219:
220: if (sc->sc_wskbd != NULL) {
221: err = config_detach(sc->sc_wskbd, flags);
222: sc->sc_wskbd = NULL;
223: }
224:
225: return err;
226: }
227:
228: const char *
229: btkbd_parse_desc(struct btkbd_softc *sc, int id, const void *desc, int dlen)
230: {
231: struct hid_data *d;
232: struct hid_item h;
233: int imod;
234:
235: imod = 0;
236: sc->sc_nkeycode = 0;
237: d = hid_start_parse(desc, dlen, hid_input);
238: while (hid_get_item(d, &h)) {
239: if (h.kind != hid_input || (h.flags & HIO_CONST) ||
240: HID_GET_USAGE_PAGE(h.usage) != HUP_KEYBOARD ||
241: h.report_ID != id)
242: continue;
243:
244: if (h.flags & HIO_VARIABLE) {
245: if (h.loc.size != 1)
246: return ("bad modifier size");
247:
248: /* Single item */
249: if (imod < MAXMOD) {
250: sc->sc_modloc[imod] = h.loc;
251: sc->sc_mods[imod].mask = 1 << imod;
252: sc->sc_mods[imod].key = HID_GET_USAGE(h.usage);
253: imod++;
254: } else
255: return ("too many modifier keys");
256: } else {
257: /* Array */
258: if (h.loc.size != 8)
259: return ("key code size != 8");
260:
261: if (h.loc.count > MAXKEYCODE)
262: return ("too many key codes");
263:
264: if (h.loc.pos % 8 != 0)
265: return ("key codes not on byte boundary");
266:
267: if (sc->sc_nkeycode != 0)
268: return ("multiple key code arrays\n");
269:
270: sc->sc_keycodeloc = h.loc;
271: sc->sc_nkeycode = h.loc.count;
272: }
273: }
274: sc->sc_nmod = imod;
275: hid_end_parse(d);
276:
277: hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_NUM_LOCK),
278: id, hid_output, &sc->sc_numloc, NULL);
279:
280: hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_CAPS_LOCK),
281: id, hid_output, &sc->sc_capsloc, NULL);
282:
283: hid_locate(desc, dlen, HID_USAGE2(HUP_LEDS, HUD_LED_SCROLL_LOCK),
284: id, hid_output, &sc->sc_scroloc, NULL);
285:
286: return (NULL);
287: }
288:
289: int
290: btkbd_enable(void *self, int on)
291: {
292: struct btkbd_softc *sc = (struct btkbd_softc *)self;
293:
294: sc->sc_enabled = on;
295: return 0;
296: }
297:
298: void
299: btkbd_set_leds(void *self, int leds)
300: {
301: struct btkbd_softc *sc = (struct btkbd_softc *)self;
302: uint8_t report;
303:
304: if (sc->sc_leds == leds)
305: return;
306:
307: sc->sc_leds = leds;
308:
309: /*
310: * This is not totally correct, since we did not check the
311: * report size from the descriptor but for keyboards it should
312: * just be a single byte with the relevant bits set.
313: */
314: report = 0;
315: if ((leds & WSKBD_LED_SCROLL) && sc->sc_scroloc.size == 1)
316: report |= 1 << sc->sc_scroloc.pos;
317:
318: if ((leds & WSKBD_LED_NUM) && sc->sc_numloc.size == 1)
319: report |= 1 << sc->sc_numloc.pos;
320:
321: if ((leds & WSKBD_LED_CAPS) && sc->sc_capsloc.size == 1)
322: report |= 1 << sc->sc_capsloc.pos;
323:
324: if (sc->sc_output)
325: (*sc->sc_output)(&sc->sc_hidev, &report, sizeof(report));
326: }
327:
328: int
329: btkbd_ioctl(void *self, unsigned long cmd, void *data, int flag, struct lwp *l)
330: {
331: struct btkbd_softc *sc = (struct btkbd_softc *)self;
332:
333: switch (cmd) {
334: case WSKBDIO_GTYPE:
335: *(int *)data = WSKBD_TYPE_BLUETOOTH;
336: break;
337:
338: case WSKBDIO_SETLEDS:
339: btkbd_set_leds(sc, *(int *)data);
340: break;
341:
342: case WSKBDIO_GETLEDS:
343: *(int *)data = sc->sc_leds;
344: break;
345:
346: #ifdef WSDISPLAY_COMPAT_RAWKBD
347: case WSKBDIO_SETMODE:
348: sc->sc_rawkbd = (*(int *)data == WSKBD_RAW);
349: #ifdef BTKBD_REPEAT
350: timeout_del(&sc->sc_repeat);
351: #endif
352: break;
353: #endif
354:
355: default:
356: return EPASSTHROUGH;
357: }
358:
359: return 0;
360: }
361:
362: #ifdef WSDISPLAY_COMPAT_RAWKBD
363: #define NN 0 /* no translation */
364: /*
365: * Translate USB keycodes to US keyboard XT scancodes.
366: * Scancodes >= 0x80 represent EXTENDED keycodes.
367: *
368: * See http://www.microsoft.com/HWDEV/TECH/input/Scancode.asp
369: */
370: const u_int8_t btkbd_trtab[256] = {
371: NN, NN, NN, NN, 0x1e, 0x30, 0x2e, 0x20, /* 00 - 07 */
372: 0x12, 0x21, 0x22, 0x23, 0x17, 0x24, 0x25, 0x26, /* 08 - 0f */
373: 0x32, 0x31, 0x18, 0x19, 0x10, 0x13, 0x1f, 0x14, /* 10 - 17 */
374: 0x16, 0x2f, 0x11, 0x2d, 0x15, 0x2c, 0x02, 0x03, /* 18 - 1f */
375: 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, /* 20 - 27 */
376: 0x1c, 0x01, 0x0e, 0x0f, 0x39, 0x0c, 0x0d, 0x1a, /* 28 - 2f */
377: 0x1b, 0x2b, 0x2b, 0x27, 0x28, 0x29, 0x33, 0x34, /* 30 - 37 */
378: 0x35, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, /* 38 - 3f */
379: 0x41, 0x42, 0x43, 0x44, 0x57, 0x58, 0xaa, 0x46, /* 40 - 47 */
380: 0x7f, 0xd2, 0xc7, 0xc9, 0xd3, 0xcf, 0xd1, 0xcd, /* 48 - 4f */
381: 0xcb, 0xd0, 0xc8, 0x45, 0xb5, 0x37, 0x4a, 0x4e, /* 50 - 57 */
382: 0x9c, 0x4f, 0x50, 0x51, 0x4b, 0x4c, 0x4d, 0x47, /* 58 - 5f */
383: 0x48, 0x49, 0x52, 0x53, 0x56, 0xdd, NN, 0x59, /* 60 - 67 */
384: 0x5d, 0x5e, 0x5f, NN, NN, NN, NN, NN, /* 68 - 6f */
385: NN, NN, NN, NN, NN, NN, NN, NN, /* 70 - 77 */
386: NN, NN, NN, NN, NN, NN, NN, NN, /* 78 - 7f */
387: NN, NN, NN, NN, NN, 0x7e, NN, 0x73, /* 80 - 87 */
388: 0x70, 0x7d, 0x79, 0x7b, 0x5c, NN, NN, NN, /* 88 - 8f */
389: NN, NN, 0x78, 0x77, 0x76, NN, NN, NN, /* 90 - 97 */
390: NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9f */
391: NN, NN, NN, NN, NN, NN, NN, NN, /* a0 - a7 */
392: NN, NN, NN, NN, NN, NN, NN, NN, /* a8 - af */
393: NN, NN, NN, NN, NN, NN, NN, NN, /* b0 - b7 */
394: NN, NN, NN, NN, NN, NN, NN, NN, /* b8 - bf */
395: NN, NN, NN, NN, NN, NN, NN, NN, /* c0 - c7 */
396: NN, NN, NN, NN, NN, NN, NN, NN, /* c8 - cf */
397: NN, NN, NN, NN, NN, NN, NN, NN, /* d0 - d7 */
398: NN, NN, NN, NN, NN, NN, NN, NN, /* d8 - df */
399: 0x1d, 0x2a, 0x38, 0xdb, 0x9d, 0x36, 0xb8, 0xdc, /* e0 - e7 */
400: NN, NN, NN, NN, NN, NN, NN, NN, /* e8 - ef */
401: NN, NN, NN, NN, NN, NN, NN, NN, /* f0 - f7 */
402: NN, NN, NN, NN, NN, NN, NN, NN, /* f8 - ff */
403: };
404: #endif
405:
406: #define KEY_ERROR 0x01
407: #define PRESS 0x000
408: #define RELEASE 0x100
409: #define CODEMASK 0x0ff
410: #define ADDKEY(c) ibuf[nkeys++] = (c)
411: #define REP_DELAY1 400
412: #define REP_DELAYN 100
413:
414: void
415: btkbd_input(struct bthidev *self, uint8_t *data, int len)
416: {
417: struct btkbd_softc *sc = (struct btkbd_softc *)self;
418: struct btkbd_data *ud = &sc->sc_ndata;
419: uint16_t ibuf[MAXKEYS];
420: uint32_t mod, omod;
421: int nkeys, i, j;
422: int key;
423: int s;
424:
425: if (sc->sc_wskbd == NULL || sc->sc_enabled == 0)
426: return;
427:
428: /* extract key modifiers */
429: ud->modifiers = 0;
430: for (i = 0 ; i < sc->sc_nmod ; i++)
431: if (hid_get_data(data, &sc->sc_modloc[i]))
432: ud->modifiers |= sc->sc_mods[i].mask;
433:
434: /* extract keycodes */
435: memcpy(ud->keycode, data + (sc->sc_keycodeloc.pos / 8),
436: sc->sc_nkeycode);
437:
438: if (ud->keycode[0] == KEY_ERROR)
439: return; /* ignore */
440:
441: nkeys = 0;
442: mod = ud->modifiers;
443: omod = sc->sc_odata.modifiers;
444: if (mod != omod)
445: for (i = 0 ; i < sc->sc_nmod ; i++)
446: if ((mod & sc->sc_mods[i].mask) !=
447: (omod & sc->sc_mods[i].mask))
448: ADDKEY(sc->sc_mods[i].key |
449: (mod & sc->sc_mods[i].mask
450: ? PRESS : RELEASE));
451:
452: if (memcmp(ud->keycode, sc->sc_odata.keycode, sc->sc_nkeycode) != 0) {
453: /* Check for released keys. */
454: for (i = 0 ; i < sc->sc_nkeycode ; i++) {
455: key = sc->sc_odata.keycode[i];
456: if (key == 0)
457: continue;
458:
459: for (j = 0 ; j < sc->sc_nkeycode ; j++)
460: if (key == ud->keycode[j])
461: goto rfound;
462:
463: ADDKEY(key | RELEASE);
464:
465: rfound:
466: ;
467: }
468:
469: /* Check for pressed keys. */
470: for (i = 0 ; i < sc->sc_nkeycode ; i++) {
471: key = ud->keycode[i];
472: if (key == 0)
473: continue;
474:
475: for (j = 0; j < sc->sc_nkeycode; j++)
476: if (key == sc->sc_odata.keycode[j])
477: goto pfound;
478:
479: ADDKEY(key | PRESS);
480: pfound:
481: ;
482: }
483: }
484: sc->sc_odata = *ud;
485:
486: if (nkeys == 0)
487: return;
488:
489: #ifdef WSDISPLAY_COMPAT_RAWKBD
490: if (sc->sc_rawkbd) {
491: u_char cbuf[MAXKEYS * 2];
492: int c;
493: int npress;
494:
495: for (npress = i = j = 0 ; i < nkeys ; i++) {
496: key = ibuf[i];
497: c = btkbd_trtab[key & CODEMASK];
498: if (c == NN)
499: continue;
500:
501: if (c & 0x80)
502: cbuf[j++] = 0xe0;
503:
504: cbuf[j] = c & 0x7f;
505: if (key & RELEASE)
506: cbuf[j] |= 0x80;
507: #ifdef BTKBD_REPEAT
508: else {
509: /* remember pressed keys for autorepeat */
510: if (c & 0x80)
511: sc->sc_rep[npress++] = 0xe0;
512:
513: sc->sc_rep[npress++] = c & 0x7f;
514: }
515: #endif
516:
517: j++;
518: }
519:
520: s = spltty();
521: wskbd_rawinput(sc->sc_wskbd, cbuf, j);
522: splx(s);
523: #ifdef BTKBD_REPEAT
524: timeout_del(&sc->sc_repeat);
525: if (npress != 0) {
526: sc->sc_nrep = npress;
527: timeout_del(&sc->sc_repeat);
528: timeout_set(&sc->sc_repeat, btkbd_repeat, sc);
529: timeout_add(&sc->sc_repeat, hz * REP_DELAY1 / 1000);
530: }
531: #endif
532: return;
533: }
534: #endif
535:
536: s = spltty();
537: for (i = 0 ; i < nkeys ; i++) {
538: key = ibuf[i];
539: wskbd_input(sc->sc_wskbd,
540: key & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN,
541: key & CODEMASK);
542: }
543: splx(s);
544: }
545:
546: #ifdef WSDISPLAY_COMPAT_RAWKBD
547: #ifdef BTKBD_REPEAT
548: void
549: btkbd_repeat(void *arg)
550: {
551: struct btkbd_softc *sc = arg;
552: int s;
553:
554: s = spltty();
555: wskbd_rawinput(sc->sc_wskbd, sc->sc_rep, sc->sc_nrep);
556: splx(s);
557: timeout_del(&sc->sc_repeat);
558: timeout_set(&sc->sc_repeat, btkbd_repeat, sc);
559: timeout_add(&sc->sc_repeat, hz * REP_DELAYN / 1000);
560: }
561: #endif
562: #endif