1 | /* $NetBSD: irframe_tty.c,v 1.61 2015/08/20 14:40:18 christos Exp $ */ |
2 | |
3 | /* |
4 | * TODO |
5 | * Test dongle code. |
6 | */ |
7 | |
8 | /* |
9 | * Copyright (c) 2001 The NetBSD Foundation, Inc. |
10 | * All rights reserved. |
11 | * |
12 | * This code is derived from software contributed to The NetBSD Foundation |
13 | * by Lennart Augustsson (lennart@augustsson.net) and Tommy Bohlin |
14 | * (tommy@gatespace.com). |
15 | * |
16 | * Redistribution and use in source and binary forms, with or without |
17 | * modification, are permitted provided that the following conditions |
18 | * are met: |
19 | * 1. Redistributions of source code must retain the above copyright |
20 | * notice, this list of conditions and the following disclaimer. |
21 | * 2. Redistributions in binary form must reproduce the above copyright |
22 | * notice, this list of conditions and the following disclaimer in the |
23 | * documentation and/or other materials provided with the distribution. |
24 | * |
25 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
26 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
27 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
29 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
35 | * POSSIBILITY OF SUCH DAMAGE. |
36 | */ |
37 | |
38 | /* |
39 | * Loosely based on ppp_tty.c. |
40 | * Framing and dongle handling written by Tommy Bohlin. |
41 | */ |
42 | |
43 | #include <sys/cdefs.h> |
44 | __KERNEL_RCSID(0, "$NetBSD: irframe_tty.c,v 1.61 2015/08/20 14:40:18 christos Exp $" ); |
45 | |
46 | #include <sys/param.h> |
47 | #include <sys/proc.h> |
48 | #include <sys/ioctl.h> |
49 | #include <sys/tty.h> |
50 | #include <sys/kernel.h> |
51 | #include <sys/mutex.h> |
52 | #include <sys/malloc.h> |
53 | #include <sys/conf.h> |
54 | #include <sys/systm.h> |
55 | #include <sys/device.h> |
56 | #include <sys/file.h> |
57 | #include <sys/vnode.h> |
58 | #include <sys/poll.h> |
59 | #include <sys/kauth.h> |
60 | |
61 | #include <dev/ir/ir.h> |
62 | #include <dev/ir/sir.h> |
63 | #include <dev/ir/irdaio.h> |
64 | #include <dev/ir/irframevar.h> |
65 | |
66 | #include "ioconf.h" |
67 | |
68 | #ifdef IRFRAMET_DEBUG |
69 | #define DPRINTF(x) if (irframetdebug) printf x |
70 | int irframetdebug = 0; |
71 | #else |
72 | #define DPRINTF(x) |
73 | #endif |
74 | |
75 | /*****/ |
76 | |
77 | /* Max size with framing. */ |
78 | #define MAX_IRDA_FRAME (2*IRDA_MAX_FRAME_SIZE + IRDA_MAX_EBOFS + 4) |
79 | |
80 | struct irt_frame { |
81 | u_char *buf; |
82 | u_int len; |
83 | }; |
84 | #define MAXFRAMES 8 |
85 | |
86 | struct irframet_softc { |
87 | struct irframe_softc sc_irp; |
88 | struct tty *sc_tp; |
89 | |
90 | int sc_dongle; |
91 | int sc_dongle_private; |
92 | |
93 | int sc_state; |
94 | #define IRT_RSLP 0x01 /* waiting for data (read) */ |
95 | #if 0 |
96 | #define IRT_WSLP 0x02 /* waiting for data (write) */ |
97 | #define IRT_CLOSING 0x04 /* waiting for output to drain */ |
98 | #endif |
99 | kmutex_t sc_wr_lk; |
100 | |
101 | struct irda_params sc_params; |
102 | |
103 | u_char* sc_inbuf; |
104 | int sc_framestate; |
105 | #define FRAME_OUTSIDE 0 |
106 | #define FRAME_INSIDE 1 |
107 | #define FRAME_ESCAPE 2 |
108 | int sc_inchars; |
109 | int sc_inFCS; |
110 | struct callout sc_timeout; |
111 | |
112 | u_int sc_nframes; |
113 | u_int sc_framei; |
114 | u_int sc_frameo; |
115 | struct irt_frame sc_frames[MAXFRAMES]; |
116 | u_int8_t sc_buffer[MAX_IRDA_FRAME]; |
117 | struct selinfo sc_rsel; |
118 | /* XXXJRT Nothing selnotify's sc_wsel */ |
119 | struct selinfo sc_wsel; |
120 | }; |
121 | |
122 | /* line discipline methods */ |
123 | int irframetopen(dev_t, struct tty *); |
124 | int irframetclose(struct tty *, int); |
125 | int irframetioctl(struct tty *, u_long, void *, int, struct lwp *); |
126 | int irframetinput(int, struct tty *); |
127 | int irframetstart(struct tty *); |
128 | |
129 | |
130 | /* irframe methods */ |
131 | static int irframet_open(void *, int, int, struct lwp *); |
132 | static int irframet_close(void *, int, int, struct lwp *); |
133 | static int irframet_read(void *, struct uio *, int); |
134 | static int irframet_write(void *, struct uio *, int); |
135 | static int irframet_poll(void *, int, struct lwp *); |
136 | static int irframet_kqfilter(void *, struct knote *); |
137 | |
138 | static int irframet_set_params(void *, struct irda_params *); |
139 | static int irframet_get_speeds(void *, int *); |
140 | static int irframet_get_turnarounds(void *, int *); |
141 | |
142 | /* internal */ |
143 | static int irt_write_frame(struct tty *, u_int8_t *, size_t); |
144 | static int irt_putc(struct tty *, int); |
145 | static void irt_frame(struct irframet_softc *, u_char *, u_int); |
146 | static void irt_timeout(void *); |
147 | static void irt_ioctl(struct tty *, u_long, void *); |
148 | static void irt_setspeed(struct tty *, u_int); |
149 | static void irt_setline(struct tty *, u_int); |
150 | static void irt_delay(struct tty *, u_int); |
151 | static void irt_buffer(struct irframet_softc *, u_int); |
152 | |
153 | static const struct irframe_methods irframet_methods = { |
154 | irframet_open, irframet_close, irframet_read, irframet_write, |
155 | irframet_poll, irframet_kqfilter, irframet_set_params, |
156 | irframet_get_speeds, irframet_get_turnarounds |
157 | }; |
158 | |
159 | static void irts_none(struct tty *, u_int); |
160 | static void irts_tekram(struct tty *, u_int); |
161 | static void irts_jeteye(struct tty *, u_int); |
162 | static void irts_actisys(struct tty *, u_int); |
163 | static void irts_litelink(struct tty *, u_int); |
164 | static void irts_girbil(struct tty *, u_int); |
165 | |
166 | #define NORMAL_SPEEDS (IRDA_SPEEDS_SIR & ~IRDA_SPEED_2400) |
167 | #define TURNT_POS (IRDA_TURNT_10000 | IRDA_TURNT_5000 | IRDA_TURNT_1000 | \ |
168 | IRDA_TURNT_500 | IRDA_TURNT_100 | IRDA_TURNT_50 | IRDA_TURNT_10) |
169 | static const struct dongle { |
170 | void (*setspeed)(struct tty *, u_int); |
171 | u_int speedmask; |
172 | u_int turnmask; |
173 | } irt_dongles[DONGLE_MAX] = { |
174 | /* Indexed by dongle number from irdaio.h */ |
175 | { irts_none, IRDA_SPEEDS_SIR, IRDA_TURNT_10000 }, |
176 | { irts_tekram, IRDA_SPEEDS_SIR, IRDA_TURNT_10000 }, |
177 | { irts_jeteye, IRDA_SPEED_9600|IRDA_SPEED_19200|IRDA_SPEED_115200, |
178 | IRDA_TURNT_10000 }, |
179 | { irts_actisys, NORMAL_SPEEDS & ~IRDA_SPEED_38400, TURNT_POS }, |
180 | { irts_actisys, NORMAL_SPEEDS, TURNT_POS }, |
181 | { irts_litelink, NORMAL_SPEEDS, TURNT_POS }, |
182 | { irts_girbil, IRDA_SPEEDS_SIR, IRDA_TURNT_10000 | IRDA_TURNT_5000 }, |
183 | }; |
184 | |
185 | static struct linesw irframet_disc = { |
186 | .l_name = "irframe" , |
187 | .l_open = irframetopen, |
188 | .l_close = irframetclose, |
189 | .l_read = ttyerrio, |
190 | .l_write = ttyerrio, |
191 | .l_ioctl = irframetioctl, |
192 | .l_rint = irframetinput, |
193 | .l_start = irframetstart, |
194 | .l_modem = ttymodem, |
195 | .l_poll = ttyerrpoll |
196 | }; |
197 | |
198 | /* glue to attach irframe device */ |
199 | static void irframet_attach(device_t, device_t, void *); |
200 | static int irframet_detach(device_t, int); |
201 | |
202 | CFATTACH_DECL_NEW(irframet, sizeof(struct irframet_softc), |
203 | NULL, irframet_attach, irframet_detach, NULL); |
204 | |
205 | void |
206 | irframettyattach(int n) |
207 | { |
208 | extern struct cfdriver irframe_cd; |
209 | |
210 | (void) ttyldisc_attach(&irframet_disc); |
211 | |
212 | /* XXX might fail if "real" attachments have pulled this in */ |
213 | /* XXX should not be done here */ |
214 | config_cfdriver_attach(&irframe_cd); |
215 | |
216 | config_cfattach_attach("irframe" , &irframet_ca); |
217 | } |
218 | |
219 | static void |
220 | irframet_attach(device_t parent, device_t self, void *aux) |
221 | { |
222 | struct irframet_softc *sc = device_private(self); |
223 | |
224 | /* pseudo-device attachment does not print name */ |
225 | aprint_normal("%s" , device_xname(self)); |
226 | |
227 | callout_init(&sc->sc_timeout, 0); |
228 | mutex_init(&sc->sc_wr_lk, MUTEX_DEFAULT, IPL_NONE); |
229 | selinit(&sc->sc_rsel); |
230 | selinit(&sc->sc_wsel); |
231 | |
232 | #if 0 /* XXX can't do it yet because pseudo-devices don't get aux */ |
233 | struct ir_attach_args ia; |
234 | |
235 | ia.ia_methods = &irframet_methods; |
236 | ia.ia_handle = aux->xxx; |
237 | |
238 | irframe_attach(parent, self, &ia); |
239 | #endif |
240 | } |
241 | |
242 | static int |
243 | irframet_detach(device_t dev, int flags) |
244 | { |
245 | struct irframet_softc *sc = device_private(dev); |
246 | int rc; |
247 | |
248 | callout_halt(&sc->sc_timeout, NULL); |
249 | |
250 | rc = irframe_detach(dev, flags); |
251 | |
252 | callout_destroy(&sc->sc_timeout); |
253 | mutex_destroy(&sc->sc_wr_lk); |
254 | seldestroy(&sc->sc_wsel); |
255 | seldestroy(&sc->sc_rsel); |
256 | |
257 | return rc; |
258 | } |
259 | |
260 | /* |
261 | * Line specific open routine for async tty devices. |
262 | * Attach the given tty to the first available irframe unit. |
263 | * Called from device open routine or ttioctl. |
264 | */ |
265 | /* ARGSUSED */ |
266 | int |
267 | irframetopen(dev_t dev, struct tty *tp) |
268 | { |
269 | struct lwp *l = curlwp; /* XXX */ |
270 | struct irframet_softc *sc; |
271 | int error, s; |
272 | cfdata_t cfdata; |
273 | struct ir_attach_args ia; |
274 | device_t d; |
275 | |
276 | DPRINTF(("%s\n" , __func__)); |
277 | |
278 | if ((error = kauth_authorize_device_tty(l->l_cred, |
279 | KAUTH_DEVICE_TTY_OPEN, tp))) |
280 | return (error); |
281 | |
282 | s = spltty(); |
283 | |
284 | DPRINTF(("%s: linesw=%p disc=%s\n" , __func__, tp->t_linesw, |
285 | tp->t_linesw->l_name)); |
286 | if (tp->t_linesw == &irframet_disc) { |
287 | sc = (struct irframet_softc *)tp->t_sc; |
288 | DPRINTF(("%s: sc=%p sc_tp=%p\n" , __func__, sc, sc->sc_tp)); |
289 | if (sc != NULL) { |
290 | splx(s); |
291 | return (EBUSY); |
292 | } |
293 | } |
294 | |
295 | cfdata = malloc(sizeof(struct cfdata), M_DEVBUF, M_WAITOK); |
296 | cfdata->cf_name = "irframe" ; |
297 | cfdata->cf_atname = "irframet" ; |
298 | cfdata->cf_fstate = FSTATE_STAR; |
299 | cfdata->cf_unit = 0; |
300 | d = config_attach_pseudo(cfdata); |
301 | sc = device_private(d); |
302 | sc->sc_irp.sc_dev = d; |
303 | |
304 | /* XXX should be done in irframet_attach() */ |
305 | ia.ia_methods = &irframet_methods; |
306 | ia.ia_handle = tp; |
307 | irframe_attach(0, d, &ia); |
308 | |
309 | tp->t_sc = sc; |
310 | sc->sc_tp = tp; |
311 | aprint_normal("%s attached at tty%02d\n" , device_xname(d), |
312 | (int)minor(tp->t_dev)); |
313 | |
314 | DPRINTF(("%s: set sc=%p\n" , __func__, sc)); |
315 | |
316 | mutex_spin_enter(&tty_lock); |
317 | ttyflush(tp, FREAD | FWRITE); |
318 | mutex_spin_exit(&tty_lock); |
319 | |
320 | sc->sc_dongle = DONGLE_NONE; |
321 | sc->sc_dongle_private = 0; |
322 | |
323 | splx(s); |
324 | |
325 | return (0); |
326 | } |
327 | |
328 | /* |
329 | * Line specific close routine, called from device close routine |
330 | * and from ttioctl. |
331 | * Detach the tty from the irframe unit. |
332 | * Mimics part of ttyclose(). |
333 | */ |
334 | int |
335 | irframetclose(struct tty *tp, int flag) |
336 | { |
337 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
338 | int s; |
339 | cfdata_t cfdata; |
340 | |
341 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
342 | |
343 | s = spltty(); |
344 | mutex_spin_enter(&tty_lock); |
345 | ttyflush(tp, FREAD | FWRITE); |
346 | mutex_spin_exit(&tty_lock); /* XXX */ |
347 | ttyldisc_release(tp->t_linesw); |
348 | tp->t_linesw = ttyldisc_default(); if (sc != NULL) { |
349 | irt_buffer(sc, 0); |
350 | tp->t_sc = NULL; |
351 | aprint_normal("%s detached from tty%02d\n" , |
352 | device_xname(sc->sc_irp.sc_dev), (int)minor(tp->t_dev)); |
353 | |
354 | if (sc->sc_tp == tp) { |
355 | cfdata = device_cfdata(sc->sc_irp.sc_dev); |
356 | config_detach(sc->sc_irp.sc_dev, 0); |
357 | free(cfdata, M_DEVBUF); |
358 | } |
359 | } |
360 | splx(s); |
361 | return (0); |
362 | } |
363 | |
364 | /* |
365 | * Line specific (tty) ioctl routine. |
366 | * This discipline requires that tty device drivers call |
367 | * the line specific l_ioctl routine from their ioctl routines. |
368 | */ |
369 | /* ARGSUSED */ |
370 | int |
371 | irframetioctl(struct tty *tp, u_long cmd, void *data, int flag, |
372 | struct lwp *l) |
373 | { |
374 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
375 | int error; |
376 | int d; |
377 | |
378 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
379 | |
380 | if (sc == NULL || tp != sc->sc_tp) |
381 | return (EPASSTHROUGH); |
382 | |
383 | error = 0; |
384 | switch (cmd) { |
385 | case IRFRAMETTY_GET_DEVICE: |
386 | *(int *)data = device_unit(sc->sc_irp.sc_dev); |
387 | break; |
388 | case IRFRAMETTY_GET_DONGLE: |
389 | *(int *)data = sc->sc_dongle; |
390 | break; |
391 | case IRFRAMETTY_SET_DONGLE: |
392 | d = *(int *)data; |
393 | if (d < 0 || d >= DONGLE_MAX) |
394 | return (EINVAL); |
395 | sc->sc_dongle = d; |
396 | break; |
397 | default: |
398 | error = EPASSTHROUGH; |
399 | break; |
400 | } |
401 | |
402 | return (error); |
403 | } |
404 | |
405 | /* |
406 | * Start output on async tty interface. |
407 | */ |
408 | int |
409 | irframetstart(struct tty *tp) |
410 | { |
411 | /*struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc;*/ |
412 | int s; |
413 | |
414 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
415 | |
416 | s = spltty(); |
417 | if (tp->t_oproc != NULL) |
418 | (*tp->t_oproc)(tp); |
419 | splx(s); |
420 | |
421 | return (0); |
422 | } |
423 | |
424 | static void |
425 | irt_buffer(struct irframet_softc *sc, u_int maxsize) |
426 | { |
427 | int i; |
428 | |
429 | DPRINTF(("%s: sc=%p, maxsize=%u\n" , __func__, sc, maxsize)); |
430 | |
431 | if (sc->sc_params.maxsize != maxsize) { |
432 | sc->sc_params.maxsize = maxsize; |
433 | if (sc->sc_inbuf != NULL) |
434 | free(sc->sc_inbuf, M_DEVBUF); |
435 | for (i = 0; i < MAXFRAMES; i++) |
436 | if (sc->sc_frames[i].buf != NULL) |
437 | free(sc->sc_frames[i].buf, M_DEVBUF); |
438 | if (sc->sc_params.maxsize != 0) { |
439 | sc->sc_inbuf = malloc(sc->sc_params.maxsize+2, |
440 | M_DEVBUF, M_WAITOK); |
441 | for (i = 0; i < MAXFRAMES; i++) |
442 | sc->sc_frames[i].buf = |
443 | malloc(sc->sc_params.maxsize, |
444 | M_DEVBUF, M_WAITOK); |
445 | } else { |
446 | sc->sc_inbuf = NULL; |
447 | for (i = 0; i < MAXFRAMES; i++) |
448 | sc->sc_frames[i].buf = NULL; |
449 | } |
450 | } |
451 | } |
452 | |
453 | void |
454 | irt_frame(struct irframet_softc *sc, u_char *tbuf, u_int len) |
455 | { |
456 | DPRINTF(("%s: nframe=%d framei=%d frameo=%d\n" , |
457 | __func__, sc->sc_nframes, sc->sc_framei, sc->sc_frameo)); |
458 | |
459 | if (sc->sc_inbuf == NULL) /* XXX happens if device is closed? */ |
460 | return; |
461 | if (sc->sc_nframes >= MAXFRAMES) { |
462 | #ifdef IRFRAMET_DEBUG |
463 | printf("%s: dropped frame\n" , __func__); |
464 | #endif |
465 | return; |
466 | } |
467 | if (sc->sc_frames[sc->sc_framei].buf == NULL) |
468 | return; |
469 | memcpy(sc->sc_frames[sc->sc_framei].buf, tbuf, len); |
470 | sc->sc_frames[sc->sc_framei].len = len; |
471 | sc->sc_framei = (sc->sc_framei+1) % MAXFRAMES; |
472 | sc->sc_nframes++; |
473 | if (sc->sc_state & IRT_RSLP) { |
474 | sc->sc_state &= ~IRT_RSLP; |
475 | DPRINTF(("%s: waking up reader\n" , __func__)); |
476 | wakeup(sc->sc_frames); |
477 | } |
478 | selnotify(&sc->sc_rsel, 0, 0); |
479 | } |
480 | |
481 | void |
482 | irt_timeout(void *v) |
483 | { |
484 | struct irframet_softc *sc = v; |
485 | |
486 | #ifdef IRFRAMET_DEBUG |
487 | if (sc->sc_framestate != FRAME_OUTSIDE) |
488 | printf("%s: input frame timeout\n" , __func__); |
489 | #endif |
490 | sc->sc_framestate = FRAME_OUTSIDE; |
491 | } |
492 | |
493 | int |
494 | irframetinput(int c, struct tty *tp) |
495 | { |
496 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
497 | |
498 | c &= 0xff; |
499 | |
500 | #if IRFRAMET_DEBUG |
501 | if (irframetdebug > 1) |
502 | DPRINTF(("%s: tp=%p c=0x%02x\n" , __func__, tp, c)); |
503 | #endif |
504 | |
505 | if (sc == NULL || tp != (struct tty *)sc->sc_tp) |
506 | return (0); |
507 | |
508 | if (sc->sc_inbuf == NULL) |
509 | return (0); |
510 | |
511 | switch (c) { |
512 | case SIR_BOF: |
513 | DPRINTF(("%s: BOF\n" , __func__)); |
514 | sc->sc_framestate = FRAME_INSIDE; |
515 | sc->sc_inchars = 0; |
516 | sc->sc_inFCS = INITFCS; |
517 | break; |
518 | case SIR_EOF: |
519 | DPRINTF(("%s: EOF state=%d inchars=%d fcs=0x%04x\n" , |
520 | __func__, |
521 | sc->sc_framestate, sc->sc_inchars, sc->sc_inFCS)); |
522 | if (sc->sc_framestate == FRAME_INSIDE && |
523 | sc->sc_inchars >= 4 && sc->sc_inFCS == GOODFCS) { |
524 | irt_frame(sc, sc->sc_inbuf, sc->sc_inchars - 2); |
525 | } else if (sc->sc_framestate != FRAME_OUTSIDE) { |
526 | #ifdef IRFRAMET_DEBUG |
527 | printf("%s: malformed input frame\n" , __func__); |
528 | #endif |
529 | } |
530 | sc->sc_framestate = FRAME_OUTSIDE; |
531 | break; |
532 | case SIR_CE: |
533 | DPRINTF(("%s: CE\n" , __func__)); |
534 | if (sc->sc_framestate == FRAME_INSIDE) |
535 | sc->sc_framestate = FRAME_ESCAPE; |
536 | break; |
537 | default: |
538 | #if IRFRAMET_DEBUG |
539 | if (irframetdebug > 1) |
540 | DPRINTF(("%s: c=0x%02x, inchar=%d state=%d\n" , __func__, c, |
541 | sc->sc_inchars, sc->sc_state)); |
542 | #endif |
543 | if (sc->sc_framestate != FRAME_OUTSIDE) { |
544 | if (sc->sc_framestate == FRAME_ESCAPE) { |
545 | sc->sc_framestate = FRAME_INSIDE; |
546 | c ^= SIR_ESC_BIT; |
547 | } |
548 | if (sc->sc_inchars < sc->sc_params.maxsize + 2) { |
549 | sc->sc_inbuf[sc->sc_inchars++] = c; |
550 | sc->sc_inFCS = updateFCS(sc->sc_inFCS, c); |
551 | } else { |
552 | sc->sc_framestate = FRAME_OUTSIDE; |
553 | #ifdef IRFRAMET_DEBUG |
554 | printf("%s: input frame overrun\n" , |
555 | __func__); |
556 | #endif |
557 | } |
558 | } |
559 | break; |
560 | } |
561 | |
562 | #if 1 |
563 | if (sc->sc_framestate != FRAME_OUTSIDE) { |
564 | callout_reset(&sc->sc_timeout, hz/20, irt_timeout, sc); |
565 | } |
566 | #endif |
567 | |
568 | return (0); |
569 | } |
570 | |
571 | |
572 | /*** irframe methods ***/ |
573 | |
574 | int |
575 | irframet_open(void *h, int flag, int mode, |
576 | struct lwp *l) |
577 | { |
578 | struct tty *tp = h; |
579 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
580 | |
581 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
582 | |
583 | sc->sc_params.speed = 0; |
584 | sc->sc_params.ebofs = IRDA_DEFAULT_EBOFS; |
585 | sc->sc_params.maxsize = 0; |
586 | sc->sc_framestate = FRAME_OUTSIDE; |
587 | sc->sc_nframes = 0; |
588 | sc->sc_framei = 0; |
589 | sc->sc_frameo = 0; |
590 | |
591 | return (0); |
592 | } |
593 | |
594 | int |
595 | irframet_close(void *h, int flag, int mode, |
596 | struct lwp *l) |
597 | { |
598 | struct tty *tp = h; |
599 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
600 | int s; |
601 | |
602 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
603 | |
604 | /* line discipline was closed */ |
605 | if (sc == NULL) |
606 | return (0); |
607 | |
608 | callout_stop(&sc->sc_timeout); |
609 | s = splir(); |
610 | irt_buffer(sc, 0); |
611 | splx(s); |
612 | |
613 | return (0); |
614 | } |
615 | |
616 | int |
617 | irframet_read(void *h, struct uio *uio, int flag) |
618 | { |
619 | struct tty *tp = h; |
620 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
621 | int error = 0; |
622 | int s; |
623 | |
624 | DPRINTF(("%s: resid=%zd, iovcnt=%d, offset=%ld\n" , |
625 | __func__, uio->uio_resid, uio->uio_iovcnt, |
626 | (long)uio->uio_offset)); |
627 | DPRINTF(("%s: nframe=%d framei=%d frameo=%d\n" , |
628 | __func__, sc->sc_nframes, sc->sc_framei, sc->sc_frameo)); |
629 | |
630 | |
631 | s = splir(); |
632 | while (sc->sc_nframes == 0) { |
633 | if (flag & IO_NDELAY) { |
634 | splx(s); |
635 | return (EWOULDBLOCK); |
636 | } |
637 | sc->sc_state |= IRT_RSLP; |
638 | DPRINTF(("%s: sleep\n" , __func__)); |
639 | error = tsleep(sc->sc_frames, PZERO | PCATCH, "irtrd" , 0); |
640 | DPRINTF(("%s: woke, error=%d\n" , __func__, error)); |
641 | if (error) { |
642 | sc->sc_state &= ~IRT_RSLP; |
643 | break; |
644 | } |
645 | } |
646 | |
647 | /* Do just one frame transfer per read */ |
648 | if (!error) { |
649 | if (uio->uio_resid < sc->sc_frames[sc->sc_frameo].len) { |
650 | DPRINTF(("%s: uio buffer smaller than frame size " |
651 | "(%zd < %d)\n" , __func__, uio->uio_resid, |
652 | sc->sc_frames[sc->sc_frameo].len)); |
653 | error = EINVAL; |
654 | } else { |
655 | DPRINTF(("%s: moving %d bytes\n" , __func__, |
656 | sc->sc_frames[sc->sc_frameo].len)); |
657 | error = uiomove(sc->sc_frames[sc->sc_frameo].buf, |
658 | sc->sc_frames[sc->sc_frameo].len, uio); |
659 | DPRINTF(("%s: error=%d\n" , __func__, error)); |
660 | } |
661 | sc->sc_frameo = (sc->sc_frameo+1) % MAXFRAMES; |
662 | sc->sc_nframes--; |
663 | } |
664 | splx(s); |
665 | |
666 | return (error); |
667 | } |
668 | |
669 | int |
670 | irt_putc(struct tty *tp, int c) |
671 | { |
672 | int error; |
673 | |
674 | #if IRFRAMET_DEBUG |
675 | if (irframetdebug > 3) |
676 | DPRINTF(("%s: tp=%p c=0x%02x cc=%d\n" , __func__, tp, c, |
677 | tp->t_outq.c_cc)); |
678 | #endif |
679 | if (tp->t_outq.c_cc > tp->t_hiwat) { |
680 | irframetstart(tp); |
681 | mutex_spin_enter(&tty_lock); |
682 | /* |
683 | * This can only occur if FLUSHO is set in t_lflag, |
684 | * or if ttstart/oproc is synchronous (or very fast). |
685 | */ |
686 | if (tp->t_outq.c_cc <= tp->t_hiwat) { |
687 | mutex_spin_exit(&tty_lock); |
688 | goto go; |
689 | } |
690 | error = ttysleep(tp, &tp->t_outcv, true, 0); |
691 | mutex_spin_exit(&tty_lock); |
692 | if (error) |
693 | return (error); |
694 | } |
695 | go: |
696 | if (putc(c, &tp->t_outq) < 0) { |
697 | printf("irframe: putc failed\n" ); |
698 | return (EIO); |
699 | } |
700 | return (0); |
701 | } |
702 | |
703 | int |
704 | irframet_write(void *h, struct uio *uio, int flag) |
705 | { |
706 | struct tty *tp = h; |
707 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
708 | int n; |
709 | |
710 | DPRINTF(("%s: resid=%zd, iovcnt=%d, offset=%ld\n" , |
711 | __func__, uio->uio_resid, uio->uio_iovcnt, |
712 | (long)uio->uio_offset)); |
713 | |
714 | n = irda_sir_frame(sc->sc_buffer, sizeof(sc->sc_buffer), uio, |
715 | sc->sc_params.ebofs); |
716 | if (n < 0) { |
717 | #ifdef IRFRAMET_DEBUG |
718 | printf("%s: irda_sir_frame() error=%d\n" , __func__, -n); |
719 | #endif |
720 | return (-n); |
721 | } |
722 | return (irt_write_frame(tp, sc->sc_buffer, n)); |
723 | } |
724 | |
725 | int |
726 | irt_write_frame(struct tty *tp, u_int8_t *tbuf, size_t len) |
727 | { |
728 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
729 | int error, i; |
730 | |
731 | DPRINTF(("%s: tp=%p len=%zd\n" , __func__, tp, len)); |
732 | |
733 | mutex_enter(&sc->sc_wr_lk); |
734 | error = 0; |
735 | for (i = 0; !error && i < len; i++) |
736 | error = irt_putc(tp, tbuf[i]); |
737 | mutex_exit(&sc->sc_wr_lk); |
738 | |
739 | irframetstart(tp); |
740 | |
741 | DPRINTF(("%s: done, error=%d\n" , __func__, error)); |
742 | |
743 | return (error); |
744 | } |
745 | |
746 | int |
747 | irframet_poll(void *h, int events, struct lwp *l) |
748 | { |
749 | struct tty *tp = h; |
750 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
751 | int revents = 0; |
752 | int s; |
753 | |
754 | DPRINTF(("%s: sc=%p\n" , __func__, sc)); |
755 | |
756 | s = splir(); |
757 | /* XXX is this a good check? */ |
758 | if (events & (POLLOUT | POLLWRNORM)) |
759 | if (tp->t_outq.c_cc <= tp->t_lowat) |
760 | revents |= events & (POLLOUT | POLLWRNORM); |
761 | |
762 | if (events & (POLLIN | POLLRDNORM)) { |
763 | if (sc->sc_nframes > 0) { |
764 | DPRINTF(("%s: have data\n" , __func__)); |
765 | revents |= events & (POLLIN | POLLRDNORM); |
766 | } else { |
767 | DPRINTF(("%s: recording select\n" , __func__)); |
768 | selrecord(l, &sc->sc_rsel); |
769 | } |
770 | } |
771 | splx(s); |
772 | |
773 | return (revents); |
774 | } |
775 | |
776 | static void |
777 | filt_irframetrdetach(struct knote *kn) |
778 | { |
779 | struct tty *tp = kn->kn_hook; |
780 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
781 | int s; |
782 | |
783 | s = splir(); |
784 | SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext); |
785 | splx(s); |
786 | } |
787 | |
788 | static int |
789 | filt_irframetread(struct knote *kn, long hint) |
790 | { |
791 | struct tty *tp = kn->kn_hook; |
792 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
793 | |
794 | kn->kn_data = sc->sc_nframes; |
795 | return (kn->kn_data > 0); |
796 | } |
797 | |
798 | static void |
799 | filt_irframetwdetach(struct knote *kn) |
800 | { |
801 | struct tty *tp = kn->kn_hook; |
802 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
803 | int s; |
804 | |
805 | s = splir(); |
806 | SLIST_REMOVE(&sc->sc_wsel.sel_klist, kn, knote, kn_selnext); |
807 | splx(s); |
808 | } |
809 | |
810 | static int |
811 | filt_irframetwrite(struct knote *kn, long hint) |
812 | { |
813 | struct tty *tp = kn->kn_hook; |
814 | |
815 | /* XXX double-check this */ |
816 | |
817 | if (tp->t_outq.c_cc <= tp->t_lowat) { |
818 | kn->kn_data = tp->t_lowat - tp->t_outq.c_cc; |
819 | return (1); |
820 | } |
821 | |
822 | kn->kn_data = 0; |
823 | return (0); |
824 | } |
825 | |
826 | static const struct filterops irframetread_filtops = |
827 | { 1, NULL, filt_irframetrdetach, filt_irframetread }; |
828 | static const struct filterops irframetwrite_filtops = |
829 | { 1, NULL, filt_irframetwdetach, filt_irframetwrite }; |
830 | |
831 | int |
832 | irframet_kqfilter(void *h, struct knote *kn) |
833 | { |
834 | struct tty *tp = h; |
835 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
836 | struct klist *klist; |
837 | int s; |
838 | |
839 | switch (kn->kn_filter) { |
840 | case EVFILT_READ: |
841 | klist = &sc->sc_rsel.sel_klist; |
842 | kn->kn_fop = &irframetread_filtops; |
843 | break; |
844 | case EVFILT_WRITE: |
845 | klist = &sc->sc_wsel.sel_klist; |
846 | kn->kn_fop = &irframetwrite_filtops; |
847 | break; |
848 | default: |
849 | return (EINVAL); |
850 | } |
851 | |
852 | kn->kn_hook = tp; |
853 | |
854 | s = splir(); |
855 | SLIST_INSERT_HEAD(klist, kn, kn_selnext); |
856 | splx(s); |
857 | |
858 | return (0); |
859 | } |
860 | |
861 | int |
862 | irframet_set_params(void *h, struct irda_params *p) |
863 | { |
864 | struct tty *tp = h; |
865 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
866 | |
867 | DPRINTF(("%s: tp=%p speed=%d ebofs=%d maxsize=%d\n" , |
868 | __func__, tp, p->speed, p->ebofs, p->maxsize)); |
869 | |
870 | if (p->speed != sc->sc_params.speed) { |
871 | /* Checked in irframe.c */ |
872 | mutex_enter(&sc->sc_wr_lk); |
873 | irt_dongles[sc->sc_dongle].setspeed(tp, p->speed); |
874 | mutex_exit(&sc->sc_wr_lk); |
875 | sc->sc_params.speed = p->speed; |
876 | } |
877 | |
878 | /* Max size checked in irframe.c */ |
879 | sc->sc_params.ebofs = p->ebofs; |
880 | irt_buffer(sc, p->maxsize); |
881 | sc->sc_framestate = FRAME_OUTSIDE; |
882 | |
883 | return (0); |
884 | } |
885 | |
886 | int |
887 | irframet_get_speeds(void *h, int *speeds) |
888 | { |
889 | struct tty *tp = h; |
890 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
891 | |
892 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
893 | |
894 | if (sc == NULL) /* during attach */ |
895 | *speeds = IRDA_SPEEDS_SIR; |
896 | else |
897 | *speeds = irt_dongles[sc->sc_dongle].speedmask; |
898 | return (0); |
899 | } |
900 | |
901 | int |
902 | irframet_get_turnarounds(void *h, int *turnarounds) |
903 | { |
904 | struct tty *tp = h; |
905 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
906 | |
907 | DPRINTF(("%s: tp=%p\n" , __func__, tp)); |
908 | |
909 | *turnarounds = irt_dongles[sc->sc_dongle].turnmask; |
910 | return (0); |
911 | } |
912 | |
913 | void |
914 | irt_ioctl(struct tty *tp, u_long cmd, void *arg) |
915 | { |
916 | const struct cdevsw *cdev; |
917 | int error __diagused; |
918 | dev_t dev; |
919 | |
920 | dev = tp->t_dev; |
921 | cdev = cdevsw_lookup(dev); |
922 | if (cdev != NULL) |
923 | error = (*cdev->d_ioctl)(dev, cmd, arg, 0, curlwp); |
924 | else |
925 | error = ENXIO; |
926 | #ifdef DIAGNOSTIC |
927 | if (error) |
928 | printf("irt_ioctl: cmd=0x%08lx error=%d\n" , cmd, error); |
929 | #endif |
930 | } |
931 | |
932 | void |
933 | irt_setspeed(struct tty *tp, u_int speed) |
934 | { |
935 | struct termios tt; |
936 | |
937 | irt_ioctl(tp, TIOCGETA, &tt); |
938 | tt.c_ispeed = tt.c_ospeed = speed; |
939 | tt.c_cflag &= ~HUPCL; |
940 | tt.c_cflag |= CLOCAL; |
941 | irt_ioctl(tp, TIOCSETAF, &tt); |
942 | } |
943 | |
944 | void |
945 | irt_setline(struct tty *tp, u_int line) |
946 | { |
947 | int mline; |
948 | |
949 | irt_ioctl(tp, TIOCMGET, &mline); |
950 | mline &= ~(TIOCM_DTR | TIOCM_RTS); |
951 | mline |= line; |
952 | irt_ioctl(tp, TIOCMSET, (void *)&mline); |
953 | } |
954 | |
955 | void |
956 | irt_delay(struct tty *tp, u_int ms) |
957 | { |
958 | if (cold) |
959 | delay(ms * 1000); |
960 | else |
961 | tsleep(&irt_delay, PZERO, "irtdly" , ms * hz / 1000 + 1); |
962 | |
963 | } |
964 | |
965 | /********************************************************************** |
966 | * No dongle |
967 | **********************************************************************/ |
968 | void |
969 | irts_none(struct tty *tp, u_int speed) |
970 | { |
971 | irt_setspeed(tp, speed); |
972 | } |
973 | |
974 | /********************************************************************** |
975 | * Tekram |
976 | **********************************************************************/ |
977 | #define TEKRAM_PW 0x10 |
978 | |
979 | #define TEKRAM_115200 (TEKRAM_PW|0x00) |
980 | #define TEKRAM_57600 (TEKRAM_PW|0x01) |
981 | #define TEKRAM_38400 (TEKRAM_PW|0x02) |
982 | #define TEKRAM_19200 (TEKRAM_PW|0x03) |
983 | #define TEKRAM_9600 (TEKRAM_PW|0x04) |
984 | #define TEKRAM_2400 (TEKRAM_PW|0x08) |
985 | |
986 | #define TEKRAM_TV (TEKRAM_PW|0x05) |
987 | |
988 | void |
989 | irts_tekram(struct tty *tp, u_int speed) |
990 | { |
991 | int s; |
992 | |
993 | irt_setspeed(tp, 9600); |
994 | irt_setline(tp, 0); |
995 | irt_delay(tp, 50); |
996 | |
997 | irt_setline(tp, TIOCM_RTS); |
998 | irt_delay(tp, 1); |
999 | |
1000 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1001 | irt_delay(tp, 1); /* 50 us */ |
1002 | |
1003 | irt_setline(tp, TIOCM_DTR); |
1004 | irt_delay(tp, 1); /* 7 us */ |
1005 | |
1006 | switch(speed) { |
1007 | case 115200: s = TEKRAM_115200; break; |
1008 | case 57600: s = TEKRAM_57600; break; |
1009 | case 38400: s = TEKRAM_38400; break; |
1010 | case 19200: s = TEKRAM_19200; break; |
1011 | case 2400: s = TEKRAM_2400; break; |
1012 | default: s = TEKRAM_9600; break; |
1013 | } |
1014 | irt_putc(tp, s); |
1015 | irframetstart(tp); |
1016 | |
1017 | irt_delay(tp, 100); |
1018 | |
1019 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1020 | if (speed != 9600) |
1021 | irt_setspeed(tp, speed); |
1022 | irt_delay(tp, 1); /* 50 us */ |
1023 | } |
1024 | |
1025 | /********************************************************************** |
1026 | * Jeteye |
1027 | **********************************************************************/ |
1028 | void |
1029 | irts_jeteye(struct tty *tp, u_int speed) |
1030 | { |
1031 | switch (speed) { |
1032 | case 19200: |
1033 | irt_setline(tp, TIOCM_DTR); |
1034 | break; |
1035 | case 115200: |
1036 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1037 | break; |
1038 | default: /*9600*/ |
1039 | irt_setline(tp, TIOCM_RTS); |
1040 | break; |
1041 | } |
1042 | irt_setspeed(tp, speed); |
1043 | } |
1044 | |
1045 | /********************************************************************** |
1046 | * Actisys |
1047 | **********************************************************************/ |
1048 | void |
1049 | irts_actisys(struct tty *tp, u_int speed) |
1050 | { |
1051 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
1052 | int pulses; |
1053 | |
1054 | irt_setspeed(tp, speed); |
1055 | |
1056 | switch(speed) { |
1057 | case 19200: pulses=1; break; |
1058 | case 57600: pulses=2; break; |
1059 | case 115200: pulses=3; break; |
1060 | case 38400: pulses=4; break; |
1061 | default: /* 9600 */ pulses=0; break; |
1062 | } |
1063 | |
1064 | if (sc->sc_dongle_private == 0) { |
1065 | sc->sc_dongle_private = 1; |
1066 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1067 | /* |
1068 | * Must wait at least 50ms after initial |
1069 | * power on to charge internal capacitor |
1070 | */ |
1071 | irt_delay(tp, 50); |
1072 | } |
1073 | irt_setline(tp, TIOCM_RTS); |
1074 | delay(2); |
1075 | for (;;) { |
1076 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1077 | delay(2); |
1078 | if (--pulses <= 0) |
1079 | break; |
1080 | irt_setline(tp, TIOCM_DTR); |
1081 | delay(2); |
1082 | } |
1083 | } |
1084 | |
1085 | /********************************************************************** |
1086 | * Litelink |
1087 | **********************************************************************/ |
1088 | void |
1089 | irts_litelink(struct tty *tp, u_int speed) |
1090 | { |
1091 | struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; |
1092 | int pulses; |
1093 | |
1094 | irt_setspeed(tp, speed); |
1095 | |
1096 | switch(speed) { |
1097 | case 57600: pulses=1; break; |
1098 | case 38400: pulses=2; break; |
1099 | case 19200: pulses=3; break; |
1100 | case 9600: pulses=4; break; |
1101 | default: /* 115200 */ pulses=0; break; |
1102 | } |
1103 | |
1104 | if (sc->sc_dongle_private == 0) { |
1105 | sc->sc_dongle_private = 1; |
1106 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1107 | } |
1108 | irt_setline(tp, TIOCM_RTS); |
1109 | irt_delay(tp, 1); /* 15 us */; |
1110 | for (;;) { |
1111 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1112 | irt_delay(tp, 1); /* 15 us */; |
1113 | if (--pulses <= 0) |
1114 | break; |
1115 | irt_setline(tp, TIOCM_DTR); |
1116 | irt_delay(tp, 1); /* 15 us */; |
1117 | } |
1118 | } |
1119 | |
1120 | /********************************************************************** |
1121 | * Girbil |
1122 | **********************************************************************/ |
1123 | /* Control register 1 */ |
1124 | #define GIRBIL_TXEN 0x01 /* Enable transmitter */ |
1125 | #define GIRBIL_RXEN 0x02 /* Enable receiver */ |
1126 | #define GIRBIL_ECAN 0x04 /* Cancel self emmited data */ |
1127 | #define GIRBIL_ECHO 0x08 /* Echo control characters */ |
1128 | |
1129 | /* LED Current Register */ |
1130 | #define GIRBIL_HIGH 0x20 |
1131 | #define GIRBIL_MEDIUM 0x21 |
1132 | #define GIRBIL_LOW 0x22 |
1133 | |
1134 | /* Baud register */ |
1135 | #define GIRBIL_2400 0x30 |
1136 | #define GIRBIL_4800 0x31 |
1137 | #define GIRBIL_9600 0x32 |
1138 | #define GIRBIL_19200 0x33 |
1139 | #define GIRBIL_38400 0x34 |
1140 | #define GIRBIL_57600 0x35 |
1141 | #define GIRBIL_115200 0x36 |
1142 | |
1143 | /* Mode register */ |
1144 | #define GIRBIL_IRDA 0x40 |
1145 | #define GIRBIL_ASK 0x41 |
1146 | |
1147 | /* Control register 2 */ |
1148 | #define GIRBIL_LOAD 0x51 /* Load the new baud rate value */ |
1149 | |
1150 | void |
1151 | irts_girbil(struct tty *tp, u_int speed) |
1152 | { |
1153 | int s; |
1154 | |
1155 | irt_setspeed(tp, 9600); |
1156 | irt_setline(tp, TIOCM_DTR); |
1157 | irt_delay(tp, 5); |
1158 | irt_setline(tp, TIOCM_RTS); |
1159 | irt_delay(tp, 20); |
1160 | switch(speed) { |
1161 | case 115200: s = GIRBIL_115200; break; |
1162 | case 57600: s = GIRBIL_57600; break; |
1163 | case 38400: s = GIRBIL_38400; break; |
1164 | case 19200: s = GIRBIL_19200; break; |
1165 | case 4800: s = GIRBIL_4800; break; |
1166 | case 2400: s = GIRBIL_2400; break; |
1167 | default: s = GIRBIL_9600; break; |
1168 | } |
1169 | irt_putc(tp, GIRBIL_TXEN|GIRBIL_RXEN); |
1170 | irt_putc(tp, s); |
1171 | irt_putc(tp, GIRBIL_LOAD); |
1172 | irframetstart(tp); |
1173 | irt_delay(tp, 100); |
1174 | irt_setline(tp, TIOCM_DTR | TIOCM_RTS); |
1175 | if (speed != 9600) |
1176 | irt_setspeed(tp, speed); |
1177 | } |
1178 | |