irframe_tty.c revision 1.56
1 /* $NetBSD: irframe_tty.c,v 1.56 2009/01/11 14:28:13 mlelstv 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 (at) augustsson.net) and Tommy Bohlin 14 * (tommy (at) 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 1.56 2009/01/11 14:28:13 mlelstv 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 #ifdef IRFRAMET_DEBUG 67 #define DPRINTF(x) if (irframetdebug) printf x 68 int irframetdebug = 0; 69 #else 70 #define DPRINTF(x) 71 #endif 72 73 /*****/ 74 75 /* Max size with framing. */ 76 #define MAX_IRDA_FRAME (2*IRDA_MAX_FRAME_SIZE + IRDA_MAX_EBOFS + 4) 77 78 struct irt_frame { 79 u_char *buf; 80 u_int len; 81 }; 82 #define MAXFRAMES 8 83 84 struct irframet_softc { 85 struct irframe_softc sc_irp; 86 struct tty *sc_tp; 87 88 int sc_dongle; 89 int sc_dongle_private; 90 91 int sc_state; 92 #define IRT_RSLP 0x01 /* waiting for data (read) */ 93 #if 0 94 #define IRT_WSLP 0x02 /* waiting for data (write) */ 95 #define IRT_CLOSING 0x04 /* waiting for output to drain */ 96 #endif 97 kmutex_t sc_wr_lk; 98 99 struct irda_params sc_params; 100 101 u_char* sc_inbuf; 102 int sc_framestate; 103 #define FRAME_OUTSIDE 0 104 #define FRAME_INSIDE 1 105 #define FRAME_ESCAPE 2 106 int sc_inchars; 107 int sc_inFCS; 108 struct callout sc_timeout; 109 110 u_int sc_nframes; 111 u_int sc_framei; 112 u_int sc_frameo; 113 struct irt_frame sc_frames[MAXFRAMES]; 114 u_int8_t sc_buffer[MAX_IRDA_FRAME]; 115 struct selinfo sc_rsel; 116 /* XXXJRT Nothing selnotify's sc_wsel */ 117 struct selinfo sc_wsel; 118 }; 119 120 /* line discipline methods */ 121 int irframetopen(dev_t, struct tty *); 122 int irframetclose(struct tty *, int); 123 int irframetioctl(struct tty *, u_long, void *, int, struct lwp *); 124 int irframetinput(int, struct tty *); 125 int irframetstart(struct tty *); 126 127 /* pseudo device init */ 128 void irframettyattach(int); 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(struct device *, struct device *, void *); 200 static int irframet_detach(struct device *, 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(struct device *dev, int flags) 244 { 245 struct irframet_softc *sc = device_private(dev); 246 int rc; 247 248 callout_stop(&sc->sc_timeout); 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 struct cfdata *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; 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
Indexes created Tue Sep 30 11:09:46 GMT 2025