irframe_tty.c revision 1.17
1 /* $NetBSD: irframe_tty.c,v 1.17 2001/12/20 09:26:35 augustss 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 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the NetBSD 27 * Foundation, Inc. and its contributors. 28 * 4. Neither the name of The NetBSD Foundation nor the names of its 29 * contributors may be used to endorse or promote products derived 30 * from this software without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 33 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 34 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 35 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 36 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 37 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 38 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 39 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 40 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 * POSSIBILITY OF SUCH DAMAGE. 43 */ 44 45 /* 46 * Loosely based on ppp_tty.c. 47 * Framing and dongle handling written by Tommy Bohlin. 48 */ 49 50 #include <sys/param.h> 51 #include <sys/proc.h> 52 #include <sys/ioctl.h> 53 #include <sys/tty.h> 54 #include <sys/kernel.h> 55 #include <sys/lock.h> 56 #include <sys/malloc.h> 57 #include <sys/conf.h> 58 #include <sys/systm.h> 59 #include <sys/device.h> 60 #include <sys/file.h> 61 #include <sys/vnode.h> 62 #include <sys/poll.h> 63 64 #include <dev/ir/ir.h> 65 #include <dev/ir/sir.h> 66 #include <dev/ir/irdaio.h> 67 #include <dev/ir/irframevar.h> 68 69 /* Macros to clear/set/test flags. */ 70 #define SET(t, f) (t) |= (f) 71 #define CLR(t, f) (t) &= ~(f) 72 #define ISSET(t, f) ((t) & (f)) 73 74 #ifdef IRFRAMET_DEBUG 75 #define DPRINTF(x) if (irframetdebug) printf x 76 #define Static 77 int irframetdebug = 0; 78 #else 79 #define DPRINTF(x) 80 #define Static static 81 #endif 82 83 /*****/ 84 85 /* Max size with framing. */ 86 #define MAX_IRDA_FRAME (2*IRDA_MAX_FRAME_SIZE + IRDA_MAX_EBOFS + 4) 87 88 struct frame { 89 u_char *buf; 90 u_int len; 91 }; 92 #define MAXFRAMES 8 93 94 struct irframet_softc { 95 struct irframe_softc sc_irp; 96 struct tty *sc_tp; 97 98 int sc_dongle; 99 int sc_dongle_private; 100 101 int sc_state; 102 #define IRT_RSLP 0x01 /* waiting for data (read) */ 103 #if 0 104 #define IRT_WSLP 0x02 /* waiting for data (write) */ 105 #define IRT_CLOSING 0x04 /* waiting for output to drain */ 106 #endif 107 struct lock sc_wr_lk; 108 109 struct irda_params sc_params; 110 111 u_char* sc_inbuf; 112 int sc_framestate; 113 #define FRAME_OUTSIDE 0 114 #define FRAME_INSIDE 1 115 #define FRAME_ESCAPE 2 116 int sc_inchars; 117 int sc_inFCS; 118 struct callout sc_timeout; 119 120 u_int sc_nframes; 121 u_int sc_framei; 122 u_int sc_frameo; 123 struct frame sc_frames[MAXFRAMES]; 124 struct selinfo sc_rsel; 125 }; 126 127 /* line discipline methods */ 128 int irframetopen(dev_t dev, struct tty *tp); 129 int irframetclose(struct tty *tp, int flag); 130 int irframetioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, 131 struct proc *); 132 int irframetinput(int c, struct tty *tp); 133 int irframetstart(struct tty *tp); 134 135 /* pseudo device init */ 136 void irframettyattach(int); 137 138 /* irframe methods */ 139 Static int irframet_open(void *h, int flag, int mode, struct proc *p); 140 Static int irframet_close(void *h, int flag, int mode, struct proc *p); 141 Static int irframet_read(void *h, struct uio *uio, int flag); 142 Static int irframet_write(void *h, struct uio *uio, int flag); 143 Static int irframet_poll(void *h, int events, struct proc *p); 144 Static int irframet_set_params(void *h, struct irda_params *params); 145 Static int irframet_get_speeds(void *h, int *speeds); 146 Static int irframet_get_turnarounds(void *h, int *times); 147 148 /* internal */ 149 Static int irt_write_frame(struct tty *tp, u_int8_t *buf, size_t len); 150 Static int irt_putc(struct tty *tp, int c); 151 Static void irt_frame(struct irframet_softc *sc, u_char *buf, u_int len); 152 Static void irt_timeout(void *v); 153 Static void irt_ioctl(struct tty *tp, u_long cmd, void *arg); 154 Static void irt_setspeed(struct tty *tp, u_int speed); 155 Static void irt_setline(struct tty *tp, u_int line); 156 Static void irt_delay(struct tty *tp, u_int delay); 157 158 Static const struct irframe_methods irframet_methods = { 159 irframet_open, irframet_close, irframet_read, irframet_write, 160 irframet_poll, irframet_set_params, 161 irframet_get_speeds, irframet_get_turnarounds 162 }; 163 164 Static void irts_none(struct tty *tp, u_int speed); 165 Static void irts_tekram(struct tty *tp, u_int speed); 166 Static void irts_jeteye(struct tty *tp, u_int speed); 167 Static void irts_actisys(struct tty *tp, u_int speed); 168 Static void irts_litelink(struct tty *tp, u_int speed); 169 Static void irts_girbil(struct tty *tp, u_int speed); 170 171 #define NORMAL_SPEEDS (IRDA_SPEEDS_SIR & ~IRDA_SPEED_2400) 172 #define TURNT_POS (IRDA_TURNT_10000 | IRDA_TURNT_5000 | IRDA_TURNT_1000 | \ 173 IRDA_TURNT_500 | IRDA_TURNT_100 | IRDA_TURNT_50 | IRDA_TURNT_10) 174 Static const struct dongle { 175 void (*setspeed)(struct tty *tp, u_int speed); 176 u_int speedmask; 177 u_int turnmask; 178 } irt_dongles[DONGLE_MAX] = { 179 /* Indexed by dongle number from irdaio.h */ 180 { irts_none, IRDA_SPEEDS_SIR, IRDA_TURNT_10000 }, 181 { irts_tekram, IRDA_SPEEDS_SIR, IRDA_TURNT_10000 }, 182 { irts_jeteye, IRDA_SPEED_9600|IRDA_SPEED_19200|IRDA_SPEED_115200, 183 IRDA_TURNT_10000 }, 184 { irts_actisys, NORMAL_SPEEDS & ~IRDA_SPEED_38400, TURNT_POS }, 185 { irts_actisys, NORMAL_SPEEDS, TURNT_POS }, 186 { irts_litelink, NORMAL_SPEEDS, TURNT_POS }, 187 { irts_girbil, IRDA_SPEEDS_SIR, IRDA_TURNT_10000 | IRDA_TURNT_5000 }, 188 }; 189 190 void 191 irframettyattach(int n) 192 { 193 } 194 195 /* 196 * Line specific open routine for async tty devices. 197 * Attach the given tty to the first available irframe unit. 198 * Called from device open routine or ttioctl. 199 */ 200 /* ARGSUSED */ 201 int 202 irframetopen(dev_t dev, struct tty *tp) 203 { 204 struct proc *p = curproc; /* XXX */ 205 struct irframet_softc *sc; 206 int error, s; 207 208 DPRINTF(("%s\n", __FUNCTION__)); 209 210 if ((error = suser(p->p_ucred, &p->p_acflag)) != 0) 211 return (error); 212 213 s = spltty(); 214 215 DPRINTF(("%s: linesw=%p disc=%s\n", __FUNCTION__, tp->t_linesw, 216 tp->t_linesw->l_name)); 217 if (strcmp(tp->t_linesw->l_name, "irframe") == 0) { /* XXX */ 218 sc = (struct irframet_softc *)tp->t_sc; 219 DPRINTF(("%s: sc=%p sc_tp=%p\n", __FUNCTION__, sc, sc->sc_tp)); 220 if (sc != NULL) { 221 splx(s); 222 return (EBUSY); 223 } 224 } 225 226 tp->t_sc = irframe_alloc(sizeof (struct irframet_softc), 227 &irframet_methods, tp); 228 sc = (struct irframet_softc *)tp->t_sc; 229 sc->sc_tp = tp; 230 printf("%s attached at tty%02d\n", sc->sc_irp.sc_dev.dv_xname, 231 minor(tp->t_dev)); 232 233 DPRINTF(("%s: set sc=%p\n", __FUNCTION__, sc)); 234 235 ttyflush(tp, FREAD | FWRITE); 236 237 sc->sc_dongle = DONGLE_NONE; 238 sc->sc_dongle_private = 0; 239 240 splx(s); 241 242 return (0); 243 } 244 245 /* 246 * Line specific close routine, called from device close routine 247 * and from ttioctl. 248 * Detach the tty from the irframe unit. 249 * Mimics part of ttyclose(). 250 */ 251 int 252 irframetclose(struct tty *tp, int flag) 253 { 254 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 255 int s; 256 257 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 258 259 s = spltty(); 260 ttyflush(tp, FREAD | FWRITE); 261 tp->t_linesw = linesw[0]; /* default line discipline */ 262 if (sc != NULL) { 263 tp->t_sc = NULL; 264 printf("%s detached from tty%02d\n", sc->sc_irp.sc_dev.dv_xname, 265 minor(tp->t_dev)); 266 267 if (sc->sc_tp == tp) 268 irframe_dealloc(&sc->sc_irp.sc_dev); 269 } 270 splx(s); 271 return (0); 272 } 273 274 /* 275 * Line specific (tty) ioctl routine. 276 * This discipline requires that tty device drivers call 277 * the line specific l_ioctl routine from their ioctl routines. 278 */ 279 /* ARGSUSED */ 280 int 281 irframetioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, 282 struct proc *p) 283 { 284 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 285 int error; 286 int d; 287 288 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 289 290 if (sc == NULL || tp != sc->sc_tp) 291 return (-1); 292 293 error = 0; 294 switch (cmd) { 295 case IRFRAMETTY_GET_DEVICE: 296 *(int *)data = sc->sc_irp.sc_dev.dv_unit; 297 break; 298 case IRFRAMETTY_GET_DONGLE: 299 *(int *)data = sc->sc_dongle; 300 break; 301 case IRFRAMETTY_SET_DONGLE: 302 d = *(int *)data; 303 if (d < 0 || d >= DONGLE_MAX) 304 return (EINVAL); 305 sc->sc_dongle = d; 306 break; 307 default: 308 error = -1; 309 break; 310 } 311 312 return (error); 313 } 314 315 /* 316 * Start output on async tty interface. 317 * Called at spltty or higher. 318 */ 319 int 320 irframetstart(struct tty *tp) 321 { 322 /*struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc;*/ 323 324 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 325 326 if (tp->t_oproc != NULL) 327 (*tp->t_oproc)(tp); 328 329 return (0); 330 } 331 332 void 333 irt_frame(struct irframet_softc *sc, u_char *buf, u_int len) 334 { 335 DPRINTF(("%s: nframe=%d framei=%d frameo=%d\n", 336 __FUNCTION__, sc->sc_nframes, sc->sc_framei, sc->sc_frameo)); 337 338 if (sc->sc_nframes >= MAXFRAMES) { 339 #ifdef IRFRAMET_DEBUG 340 printf("%s: dropped frame\n", __FUNCTION__); 341 #endif 342 return; 343 } 344 if (sc->sc_frames[sc->sc_framei].buf == NULL) 345 return; 346 memcpy(sc->sc_frames[sc->sc_framei].buf, buf, len); 347 sc->sc_frames[sc->sc_framei].len = len; 348 sc->sc_framei = (sc->sc_framei+1) % MAXFRAMES; 349 sc->sc_nframes++; 350 if (sc->sc_state & IRT_RSLP) { 351 sc->sc_state &= ~IRT_RSLP; 352 DPRINTF(("%s: waking up reader\n", __FUNCTION__)); 353 wakeup(sc->sc_frames); 354 } 355 selwakeup(&sc->sc_rsel); 356 } 357 358 void 359 irt_timeout(void *v) 360 { 361 struct irframet_softc *sc = v; 362 363 #ifdef IRFRAMET_DEBUG 364 if (sc->sc_framestate != FRAME_OUTSIDE) 365 printf("%s: input frame timeout\n", __FUNCTION__); 366 #endif 367 sc->sc_framestate = FRAME_OUTSIDE; 368 } 369 370 int 371 irframetinput(int c, struct tty *tp) 372 { 373 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 374 375 c &= 0xff; 376 377 #if IRFRAMET_DEBUG 378 if (irframetdebug > 1) 379 DPRINTF(("%s: tp=%p c=0x%02x\n", __FUNCTION__, tp, c)); 380 #endif 381 382 if (sc == NULL || tp != (struct tty *)sc->sc_tp) 383 return (0); 384 385 if (sc->sc_inbuf == NULL) 386 return (0); 387 388 switch (c) { 389 case SIR_BOF: 390 DPRINTF(("%s: BOF\n", __FUNCTION__)); 391 sc->sc_framestate = FRAME_INSIDE; 392 sc->sc_inchars = 0; 393 sc->sc_inFCS = INITFCS; 394 break; 395 case SIR_EOF: 396 DPRINTF(("%s: EOF state=%d inchars=%d fcs=0x%04x\n", 397 __FUNCTION__, 398 sc->sc_framestate, sc->sc_inchars, sc->sc_inFCS)); 399 if (sc->sc_framestate == FRAME_INSIDE && 400 sc->sc_inchars >= 4 && sc->sc_inFCS == GOODFCS) { 401 irt_frame(sc, sc->sc_inbuf, sc->sc_inchars - 2); 402 } else if (sc->sc_framestate != FRAME_OUTSIDE) { 403 #ifdef IRFRAMET_DEBUG 404 printf("%s: malformed input frame\n", __FUNCTION__); 405 #endif 406 } 407 sc->sc_framestate = FRAME_OUTSIDE; 408 break; 409 case SIR_CE: 410 DPRINTF(("%s: CE\n", __FUNCTION__)); 411 if (sc->sc_framestate == FRAME_INSIDE) 412 sc->sc_framestate = FRAME_ESCAPE; 413 break; 414 default: 415 #if IRFRAMET_DEBUG 416 if (irframetdebug > 1) 417 DPRINTF(("%s: c=0x%02x, inchar=%d state=%d\n", __FUNCTION__, c, 418 sc->sc_inchars, sc->sc_state)); 419 #endif 420 if (sc->sc_framestate != FRAME_OUTSIDE) { 421 if (sc->sc_framestate == FRAME_ESCAPE) { 422 sc->sc_framestate = FRAME_INSIDE; 423 c ^= SIR_ESC_BIT; 424 } 425 if (sc->sc_inchars < sc->sc_params.maxsize + 2) { 426 sc->sc_inbuf[sc->sc_inchars++] = c; 427 sc->sc_inFCS = updateFCS(sc->sc_inFCS, c); 428 } else { 429 sc->sc_framestate = FRAME_OUTSIDE; 430 #ifdef IRFRAMET_DEBUG 431 printf("%s: input frame overrun\n", 432 __FUNCTION__); 433 #endif 434 } 435 } 436 break; 437 } 438 439 #if 1 440 if (sc->sc_framestate != FRAME_OUTSIDE) { 441 callout_reset(&sc->sc_timeout, hz/20, irt_timeout, sc); 442 } 443 #endif 444 445 return (0); 446 } 447 448 449 /*** irframe methods ***/ 450 451 int 452 irframet_open(void *h, int flag, int mode, struct proc *p) 453 { 454 struct tty *tp = h; 455 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 456 457 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 458 459 sc->sc_params.speed = 0; 460 sc->sc_params.ebofs = IRDA_DEFAULT_EBOFS; 461 sc->sc_params.maxsize = 0; 462 sc->sc_framestate = FRAME_OUTSIDE; 463 sc->sc_nframes = 0; 464 sc->sc_framei = 0; 465 sc->sc_frameo = 0; 466 callout_init(&sc->sc_timeout); 467 lockinit(&sc->sc_wr_lk, PZERO, "irfrtl", 0, 0); 468 469 return (0); 470 } 471 472 int 473 irframet_close(void *h, int flag, int mode, struct proc *p) 474 { 475 struct tty *tp = h; 476 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 477 int i, s; 478 479 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 480 481 callout_stop(&sc->sc_timeout); 482 s = splir(); 483 if (sc->sc_inbuf != NULL) { 484 free(sc->sc_inbuf, M_DEVBUF); 485 sc->sc_inbuf = NULL; 486 } 487 for (i = 0; i < MAXFRAMES; i++) { 488 if (sc->sc_frames[i].buf != NULL) { 489 free(sc->sc_frames[i].buf, M_DEVBUF); 490 sc->sc_frames[i].buf = NULL; 491 } 492 } 493 splx(s); 494 495 return (0); 496 } 497 498 int 499 irframet_read(void *h, struct uio *uio, int flag) 500 { 501 struct tty *tp = h; 502 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 503 int error = 0; 504 int s; 505 506 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 507 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 508 (long)uio->uio_offset)); 509 DPRINTF(("%s: nframe=%d framei=%d frameo=%d\n", 510 __FUNCTION__, sc->sc_nframes, sc->sc_framei, sc->sc_frameo)); 511 512 513 s = splir(); 514 while (sc->sc_nframes == 0) { 515 if (flag & IO_NDELAY) { 516 splx(s); 517 return (EWOULDBLOCK); 518 } 519 sc->sc_state |= IRT_RSLP; 520 DPRINTF(("%s: sleep\n", __FUNCTION__)); 521 error = tsleep(sc->sc_frames, PZERO | PCATCH, "irtrd", 0); 522 DPRINTF(("%s: woke, error=%d\n", __FUNCTION__, error)); 523 if (error) { 524 sc->sc_state &= ~IRT_RSLP; 525 break; 526 } 527 } 528 529 /* Do just one frame transfer per read */ 530 if (!error) { 531 if (uio->uio_resid < sc->sc_frames[sc->sc_frameo].len) { 532 DPRINTF(("%s: uio buffer smaller than frame size " 533 "(%d < %d)\n", __FUNCTION__, uio->uio_resid, 534 sc->sc_frames[sc->sc_frameo].len)); 535 error = EINVAL; 536 } else { 537 DPRINTF(("%s: moving %d bytes\n", __FUNCTION__, 538 sc->sc_frames[sc->sc_frameo].len)); 539 error = uiomove(sc->sc_frames[sc->sc_frameo].buf, 540 sc->sc_frames[sc->sc_frameo].len, uio); 541 DPRINTF(("%s: error=%d\n", __FUNCTION__, error)); 542 } 543 sc->sc_frameo = (sc->sc_frameo+1) % MAXFRAMES; 544 sc->sc_nframes--; 545 } 546 splx(s); 547 548 return (error); 549 } 550 551 int 552 irt_putc(struct tty *tp, int c) 553 { 554 int s; 555 int error; 556 557 #if IRFRAMET_DEBUG 558 if (irframetdebug > 3) 559 DPRINTF(("%s: tp=%p c=0x%02x cc=%d\n", __FUNCTION__, tp, c, 560 tp->t_outq.c_cc)); 561 #endif 562 if (tp->t_outq.c_cc > tp->t_hiwat) { 563 irframetstart(tp); 564 s = spltty(); 565 /* 566 * This can only occur if FLUSHO is set in t_lflag, 567 * or if ttstart/oproc is synchronous (or very fast). 568 */ 569 if (tp->t_outq.c_cc <= tp->t_hiwat) { 570 splx(s); 571 goto go; 572 } 573 SET(tp->t_state, TS_ASLEEP); 574 error = ttysleep(tp, &tp->t_outq, TTOPRI | PCATCH, ttyout, 0); 575 splx(s); 576 if (error) 577 return (error); 578 } 579 go: 580 if (putc(c, &tp->t_outq) < 0) { 581 printf("irframe: putc failed\n"); 582 return (EIO); 583 } 584 return (0); 585 } 586 587 int 588 irframet_write(void *h, struct uio *uio, int flag) 589 { 590 struct tty *tp = h; 591 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 592 u_int8_t buf[MAX_IRDA_FRAME]; 593 int n; 594 595 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 596 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 597 (long)uio->uio_offset)); 598 599 n = irda_sir_frame(buf, MAX_IRDA_FRAME, uio, sc->sc_params.ebofs); 600 if (n < 0) { 601 #ifdef IRFRAMET_DEBUG 602 printf("%s: irda_sir_frame() error=%d\n", __FUNCTION__, -n); 603 #endif 604 return (-n); 605 } 606 return (irt_write_frame(tp, buf, n)); 607 } 608 609 int 610 irt_write_frame(struct tty *tp, u_int8_t *buf, size_t len) 611 { 612 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 613 int error, i; 614 615 DPRINTF(("%s: tp=%p len=%d\n", __FUNCTION__, tp, len)); 616 617 lockmgr(&sc->sc_wr_lk, LK_EXCLUSIVE, NULL); 618 error = 0; 619 for (i = 0; !error && i < len; i++) 620 error = irt_putc(tp, buf[i]); 621 lockmgr(&sc->sc_wr_lk, LK_RELEASE, NULL); 622 623 irframetstart(tp); 624 625 DPRINTF(("%s: done, error=%d\n", __FUNCTION__, error)); 626 627 return (error); 628 } 629 630 int 631 irframet_poll(void *h, int events, struct proc *p) 632 { 633 struct tty *tp = h; 634 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 635 int revents = 0; 636 int s; 637 638 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 639 640 s = splir(); 641 /* XXX is this a good check? */ 642 if (events & (POLLOUT | POLLWRNORM)) 643 if (tp->t_outq.c_cc <= tp->t_lowat) 644 revents |= events & (POLLOUT | POLLWRNORM); 645 646 if (events & (POLLIN | POLLRDNORM)) { 647 if (sc->sc_nframes > 0) { 648 DPRINTF(("%s: have data\n", __FUNCTION__)); 649 revents |= events & (POLLIN | POLLRDNORM); 650 } else { 651 DPRINTF(("%s: recording select\n", __FUNCTION__)); 652 selrecord(p, &sc->sc_rsel); 653 } 654 } 655 splx(s); 656 657 return (revents); 658 } 659 660 int 661 irframet_set_params(void *h, struct irda_params *p) 662 { 663 struct tty *tp = h; 664 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 665 int i; 666 667 DPRINTF(("%s: tp=%p speed=%d ebofs=%d maxsize=%d\n", 668 __FUNCTION__, tp, p->speed, p->ebofs, p->maxsize)); 669 670 if (p->speed != sc->sc_params.speed) { 671 /* Checked in irframe.c */ 672 lockmgr(&sc->sc_wr_lk, LK_EXCLUSIVE, NULL); 673 irt_dongles[sc->sc_dongle].setspeed(tp, p->speed); 674 lockmgr(&sc->sc_wr_lk, LK_RELEASE, NULL); 675 sc->sc_params.speed = p->speed; 676 } 677 678 /* Max size checked in irframe.c */ 679 sc->sc_params.ebofs = p->ebofs; 680 /* Max size checked in irframe.c */ 681 if (sc->sc_params.maxsize != p->maxsize) { 682 sc->sc_params.maxsize = p->maxsize; 683 if (sc->sc_inbuf != NULL) 684 free(sc->sc_inbuf, M_DEVBUF); 685 for (i = 0; i < MAXFRAMES; i++) 686 if (sc->sc_frames[i].buf != NULL) 687 free(sc->sc_frames[i].buf, M_DEVBUF); 688 if (sc->sc_params.maxsize != 0) { 689 sc->sc_inbuf = malloc(sc->sc_params.maxsize+2, 690 M_DEVBUF, M_WAITOK); 691 for (i = 0; i < MAXFRAMES; i++) 692 sc->sc_frames[i].buf = 693 malloc(sc->sc_params.maxsize, 694 M_DEVBUF, M_WAITOK); 695 } else { 696 sc->sc_inbuf = NULL; 697 for (i = 0; i < MAXFRAMES; i++) 698 sc->sc_frames[i].buf = NULL; 699 } 700 } 701 sc->sc_framestate = FRAME_OUTSIDE; 702 703 return (0); 704 } 705 706 int 707 irframet_get_speeds(void *h, int *speeds) 708 { 709 struct tty *tp = h; 710 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 711 712 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 713 714 if (sc == NULL) /* during attach */ 715 *speeds = IRDA_SPEEDS_SIR; 716 else 717 *speeds = irt_dongles[sc->sc_dongle].speedmask; 718 return (0); 719 } 720 721 int 722 irframet_get_turnarounds(void *h, int *turnarounds) 723 { 724 struct tty *tp = h; 725 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 726 727 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 728 729 *turnarounds = irt_dongles[sc->sc_dongle].turnmask; 730 return (0); 731 } 732 733 void 734 irt_ioctl(struct tty *tp, u_long cmd, void *arg) 735 { 736 int error; 737 dev_t dev; 738 739 dev = tp->t_dev; 740 error = cdevsw[major(dev)].d_ioctl(dev, cmd, arg, 0, curproc); 741 #ifdef DIAGNOSTIC 742 if (error) 743 printf("irt_ioctl: cmd=0x%08lx error=%d\n", cmd, error); 744 #endif 745 } 746 747 void 748 irt_setspeed(struct tty *tp, u_int speed) 749 { 750 struct termios tt; 751 752 irt_ioctl(tp, TIOCGETA, &tt); 753 tt.c_ispeed = tt.c_ospeed = speed; 754 irt_ioctl(tp, TIOCSETAF, &tt); 755 } 756 757 void 758 irt_setline(struct tty *tp, u_int line) 759 { 760 int mline; 761 762 irt_ioctl(tp, TIOCMGET, &mline); 763 mline &= ~(TIOCM_DTR | TIOCM_RTS); 764 mline |= line; 765 irt_ioctl(tp, TIOCMSET, (caddr_t)&mline); 766 } 767 768 void 769 irt_delay(struct tty *tp, u_int ms) 770 { 771 if (cold) 772 delay(ms * 1000); 773 else 774 tsleep(&irt_delay, PZERO, "irtdly", ms * hz / 1000 + 1); 775 776 } 777 778 /********************************************************************** 779 * No dongle 780 **********************************************************************/ 781 void 782 irts_none(struct tty *tp, u_int speed) 783 { 784 irt_setspeed(tp, speed); 785 } 786 787 /********************************************************************** 788 * Tekram 789 **********************************************************************/ 790 #define TEKRAM_PW 0x10 791 792 #define TEKRAM_115200 (TEKRAM_PW|0x00) 793 #define TEKRAM_57600 (TEKRAM_PW|0x01) 794 #define TEKRAM_38400 (TEKRAM_PW|0x02) 795 #define TEKRAM_19200 (TEKRAM_PW|0x03) 796 #define TEKRAM_9600 (TEKRAM_PW|0x04) 797 #define TEKRAM_2400 (TEKRAM_PW|0x08) 798 799 #define TEKRAM_TV (TEKRAM_PW|0x05) 800 801 void 802 irts_tekram(struct tty *tp, u_int speed) 803 { 804 int s; 805 806 irt_setspeed(tp, 9600); 807 irt_setline(tp, 0); 808 irt_delay(tp, 50); 809 810 irt_setline(tp, TIOCM_RTS); 811 irt_delay(tp, 1); 812 813 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 814 irt_delay(tp, 1); /* 50 us */ 815 816 irt_setline(tp, TIOCM_DTR); 817 irt_delay(tp, 1); /* 7 us */ 818 819 switch(speed) { 820 case 115200: s = TEKRAM_115200; break; 821 case 57600: s = TEKRAM_57600; break; 822 case 38400: s = TEKRAM_38400; break; 823 case 19200: s = TEKRAM_19200; break; 824 case 2400: s = TEKRAM_2400; break; 825 default: s = TEKRAM_9600; break; 826 } 827 irt_putc(tp, s); 828 irt_delay(tp, 100); 829 830 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 831 if (speed != 9600) 832 irt_setspeed(tp, speed); 833 irt_delay(tp, 1); /* 50 us */ 834 } 835 836 /********************************************************************** 837 * Jeteye 838 **********************************************************************/ 839 void 840 irts_jeteye(struct tty *tp, u_int speed) 841 { 842 switch (speed) { 843 case 19200: 844 irt_setline(tp, TIOCM_DTR); 845 break; 846 case 115200: 847 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 848 break; 849 default: /*9600*/ 850 irt_setline(tp, TIOCM_RTS); 851 break; 852 } 853 irt_setspeed(tp, speed); 854 } 855 856 /********************************************************************** 857 * Actisys 858 **********************************************************************/ 859 void 860 irts_actisys(struct tty *tp, u_int speed) 861 { 862 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 863 int pulses; 864 865 irt_setspeed(tp, speed); 866 867 switch(speed) { 868 case 19200: pulses=1; break; 869 case 57600: pulses=2; break; 870 case 115200: pulses=3; break; 871 case 38400: pulses=4; break; 872 default: /* 9600 */ pulses=0; break; 873 } 874 875 if (sc->sc_dongle_private == 0) { 876 sc->sc_dongle_private = 1; 877 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 878 /* 879 * Must wait at least 50ms after initial 880 * power on to charge internal capacitor 881 */ 882 irt_delay(tp, 50); 883 } 884 irt_setline(tp, TIOCM_RTS); 885 delay(2); 886 for (;;) { 887 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 888 delay(2); 889 if (--pulses <= 0) 890 break; 891 irt_setline(tp, TIOCM_DTR); 892 delay(2); 893 } 894 } 895 896 /********************************************************************** 897 * Litelink 898 **********************************************************************/ 899 void 900 irts_litelink(struct tty *tp, u_int speed) 901 { 902 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 903 int pulses; 904 905 irt_setspeed(tp, speed); 906 907 switch(speed) { 908 case 57600: pulses=1; break; 909 case 38400: pulses=2; break; 910 case 19200: pulses=3; break; 911 case 9600: pulses=4; break; 912 default: /* 115200 */ pulses=0; break; 913 } 914 915 if (sc->sc_dongle_private == 0) { 916 sc->sc_dongle_private = 1; 917 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 918 } 919 irt_setline(tp, TIOCM_RTS); 920 irt_delay(tp, 1); /* 15 us */; 921 for (;;) { 922 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 923 irt_delay(tp, 1); /* 15 us */; 924 if (--pulses <= 0) 925 break; 926 irt_setline(tp, TIOCM_DTR); 927 irt_delay(tp, 1); /* 15 us */; 928 } 929 } 930 931 /********************************************************************** 932 * Girbil 933 **********************************************************************/ 934 /* Control register 1 */ 935 #define GIRBIL_TXEN 0x01 /* Enable transmitter */ 936 #define GIRBIL_RXEN 0x02 /* Enable receiver */ 937 #define GIRBIL_ECAN 0x04 /* Cancel self emmited data */ 938 #define GIRBIL_ECHO 0x08 /* Echo control characters */ 939 940 /* LED Current Register */ 941 #define GIRBIL_HIGH 0x20 942 #define GIRBIL_MEDIUM 0x21 943 #define GIRBIL_LOW 0x22 944 945 /* Baud register */ 946 #define GIRBIL_2400 0x30 947 #define GIRBIL_4800 0x31 948 #define GIRBIL_9600 0x32 949 #define GIRBIL_19200 0x33 950 #define GIRBIL_38400 0x34 951 #define GIRBIL_57600 0x35 952 #define GIRBIL_115200 0x36 953 954 /* Mode register */ 955 #define GIRBIL_IRDA 0x40 956 #define GIRBIL_ASK 0x41 957 958 /* Control register 2 */ 959 #define GIRBIL_LOAD 0x51 /* Load the new baud rate value */ 960 961 void 962 irts_girbil(struct tty *tp, u_int speed) 963 { 964 int s; 965 966 irt_setspeed(tp, 9600); 967 irt_setline(tp, TIOCM_DTR); 968 irt_delay(tp, 5); 969 irt_setline(tp, TIOCM_RTS); 970 irt_delay(tp, 20); 971 switch(speed) { 972 case 115200: s = GIRBIL_115200; break; 973 case 57600: s = GIRBIL_57600; break; 974 case 38400: s = GIRBIL_38400; break; 975 case 19200: s = GIRBIL_19200; break; 976 case 4800: s = GIRBIL_4800; break; 977 case 2400: s = GIRBIL_2400; break; 978 default: s = GIRBIL_9600; break; 979 } 980 irt_putc(tp, GIRBIL_TXEN|GIRBIL_RXEN); 981 irt_putc(tp, s); 982 irt_putc(tp, GIRBIL_LOAD); 983 irt_delay(tp, 100); 984 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 985 if (speed != 9600) 986 irt_setspeed(tp, speed); 987 } 988
Indexes created Tue Sep 30 07:10:03 GMT 2025