irframe_tty.c revision 1.18
1 /* $NetBSD: irframe_tty.c,v 1.18 2001/12/20 11:30:13 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 */ 318 int 319 irframetstart(struct tty *tp) 320 { 321 /*struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc;*/ 322 int s; 323 324 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 325 326 s = spltty(); 327 if (tp->t_oproc != NULL) 328 (*tp->t_oproc)(tp); 329 splx(s); 330 331 return (0); 332 } 333 334 void 335 irt_frame(struct irframet_softc *sc, u_char *buf, u_int len) 336 { 337 DPRINTF(("%s: nframe=%d framei=%d frameo=%d\n", 338 __FUNCTION__, sc->sc_nframes, sc->sc_framei, sc->sc_frameo)); 339 340 if (sc->sc_nframes >= MAXFRAMES) { 341 #ifdef IRFRAMET_DEBUG 342 printf("%s: dropped frame\n", __FUNCTION__); 343 #endif 344 return; 345 } 346 if (sc->sc_frames[sc->sc_framei].buf == NULL) 347 return; 348 memcpy(sc->sc_frames[sc->sc_framei].buf, buf, len); 349 sc->sc_frames[sc->sc_framei].len = len; 350 sc->sc_framei = (sc->sc_framei+1) % MAXFRAMES; 351 sc->sc_nframes++; 352 if (sc->sc_state & IRT_RSLP) { 353 sc->sc_state &= ~IRT_RSLP; 354 DPRINTF(("%s: waking up reader\n", __FUNCTION__)); 355 wakeup(sc->sc_frames); 356 } 357 selwakeup(&sc->sc_rsel); 358 } 359 360 void 361 irt_timeout(void *v) 362 { 363 struct irframet_softc *sc = v; 364 365 #ifdef IRFRAMET_DEBUG 366 if (sc->sc_framestate != FRAME_OUTSIDE) 367 printf("%s: input frame timeout\n", __FUNCTION__); 368 #endif 369 sc->sc_framestate = FRAME_OUTSIDE; 370 } 371 372 int 373 irframetinput(int c, struct tty *tp) 374 { 375 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 376 377 c &= 0xff; 378 379 #if IRFRAMET_DEBUG 380 if (irframetdebug > 1) 381 DPRINTF(("%s: tp=%p c=0x%02x\n", __FUNCTION__, tp, c)); 382 #endif 383 384 if (sc == NULL || tp != (struct tty *)sc->sc_tp) 385 return (0); 386 387 if (sc->sc_inbuf == NULL) 388 return (0); 389 390 switch (c) { 391 case SIR_BOF: 392 DPRINTF(("%s: BOF\n", __FUNCTION__)); 393 sc->sc_framestate = FRAME_INSIDE; 394 sc->sc_inchars = 0; 395 sc->sc_inFCS = INITFCS; 396 break; 397 case SIR_EOF: 398 DPRINTF(("%s: EOF state=%d inchars=%d fcs=0x%04x\n", 399 __FUNCTION__, 400 sc->sc_framestate, sc->sc_inchars, sc->sc_inFCS)); 401 if (sc->sc_framestate == FRAME_INSIDE && 402 sc->sc_inchars >= 4 && sc->sc_inFCS == GOODFCS) { 403 irt_frame(sc, sc->sc_inbuf, sc->sc_inchars - 2); 404 } else if (sc->sc_framestate != FRAME_OUTSIDE) { 405 #ifdef IRFRAMET_DEBUG 406 printf("%s: malformed input frame\n", __FUNCTION__); 407 #endif 408 } 409 sc->sc_framestate = FRAME_OUTSIDE; 410 break; 411 case SIR_CE: 412 DPRINTF(("%s: CE\n", __FUNCTION__)); 413 if (sc->sc_framestate == FRAME_INSIDE) 414 sc->sc_framestate = FRAME_ESCAPE; 415 break; 416 default: 417 #if IRFRAMET_DEBUG 418 if (irframetdebug > 1) 419 DPRINTF(("%s: c=0x%02x, inchar=%d state=%d\n", __FUNCTION__, c, 420 sc->sc_inchars, sc->sc_state)); 421 #endif 422 if (sc->sc_framestate != FRAME_OUTSIDE) { 423 if (sc->sc_framestate == FRAME_ESCAPE) { 424 sc->sc_framestate = FRAME_INSIDE; 425 c ^= SIR_ESC_BIT; 426 } 427 if (sc->sc_inchars < sc->sc_params.maxsize + 2) { 428 sc->sc_inbuf[sc->sc_inchars++] = c; 429 sc->sc_inFCS = updateFCS(sc->sc_inFCS, c); 430 } else { 431 sc->sc_framestate = FRAME_OUTSIDE; 432 #ifdef IRFRAMET_DEBUG 433 printf("%s: input frame overrun\n", 434 __FUNCTION__); 435 #endif 436 } 437 } 438 break; 439 } 440 441 #if 1 442 if (sc->sc_framestate != FRAME_OUTSIDE) { 443 callout_reset(&sc->sc_timeout, hz/20, irt_timeout, sc); 444 } 445 #endif 446 447 return (0); 448 } 449 450 451 /*** irframe methods ***/ 452 453 int 454 irframet_open(void *h, int flag, int mode, struct proc *p) 455 { 456 struct tty *tp = h; 457 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 458 459 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 460 461 sc->sc_params.speed = 0; 462 sc->sc_params.ebofs = IRDA_DEFAULT_EBOFS; 463 sc->sc_params.maxsize = 0; 464 sc->sc_framestate = FRAME_OUTSIDE; 465 sc->sc_nframes = 0; 466 sc->sc_framei = 0; 467 sc->sc_frameo = 0; 468 callout_init(&sc->sc_timeout); 469 lockinit(&sc->sc_wr_lk, PZERO, "irfrtl", 0, 0); 470 471 return (0); 472 } 473 474 int 475 irframet_close(void *h, int flag, int mode, struct proc *p) 476 { 477 struct tty *tp = h; 478 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 479 int i, s; 480 481 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 482 483 callout_stop(&sc->sc_timeout); 484 s = splir(); 485 if (sc->sc_inbuf != NULL) { 486 free(sc->sc_inbuf, M_DEVBUF); 487 sc->sc_inbuf = NULL; 488 } 489 for (i = 0; i < MAXFRAMES; i++) { 490 if (sc->sc_frames[i].buf != NULL) { 491 free(sc->sc_frames[i].buf, M_DEVBUF); 492 sc->sc_frames[i].buf = NULL; 493 } 494 } 495 splx(s); 496 497 return (0); 498 } 499 500 int 501 irframet_read(void *h, struct uio *uio, int flag) 502 { 503 struct tty *tp = h; 504 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 505 int error = 0; 506 int s; 507 508 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 509 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 510 (long)uio->uio_offset)); 511 DPRINTF(("%s: nframe=%d framei=%d frameo=%d\n", 512 __FUNCTION__, sc->sc_nframes, sc->sc_framei, sc->sc_frameo)); 513 514 515 s = splir(); 516 while (sc->sc_nframes == 0) { 517 if (flag & IO_NDELAY) { 518 splx(s); 519 return (EWOULDBLOCK); 520 } 521 sc->sc_state |= IRT_RSLP; 522 DPRINTF(("%s: sleep\n", __FUNCTION__)); 523 error = tsleep(sc->sc_frames, PZERO | PCATCH, "irtrd", 0); 524 DPRINTF(("%s: woke, error=%d\n", __FUNCTION__, error)); 525 if (error) { 526 sc->sc_state &= ~IRT_RSLP; 527 break; 528 } 529 } 530 531 /* Do just one frame transfer per read */ 532 if (!error) { 533 if (uio->uio_resid < sc->sc_frames[sc->sc_frameo].len) { 534 DPRINTF(("%s: uio buffer smaller than frame size " 535 "(%d < %d)\n", __FUNCTION__, uio->uio_resid, 536 sc->sc_frames[sc->sc_frameo].len)); 537 error = EINVAL; 538 } else { 539 DPRINTF(("%s: moving %d bytes\n", __FUNCTION__, 540 sc->sc_frames[sc->sc_frameo].len)); 541 error = uiomove(sc->sc_frames[sc->sc_frameo].buf, 542 sc->sc_frames[sc->sc_frameo].len, uio); 543 DPRINTF(("%s: error=%d\n", __FUNCTION__, error)); 544 } 545 sc->sc_frameo = (sc->sc_frameo+1) % MAXFRAMES; 546 sc->sc_nframes--; 547 } 548 splx(s); 549 550 return (error); 551 } 552 553 int 554 irt_putc(struct tty *tp, int c) 555 { 556 int s; 557 int error; 558 559 #if IRFRAMET_DEBUG 560 if (irframetdebug > 3) 561 DPRINTF(("%s: tp=%p c=0x%02x cc=%d\n", __FUNCTION__, tp, c, 562 tp->t_outq.c_cc)); 563 #endif 564 if (tp->t_outq.c_cc > tp->t_hiwat) { 565 irframetstart(tp); 566 s = spltty(); 567 /* 568 * This can only occur if FLUSHO is set in t_lflag, 569 * or if ttstart/oproc is synchronous (or very fast). 570 */ 571 if (tp->t_outq.c_cc <= tp->t_hiwat) { 572 splx(s); 573 goto go; 574 } 575 SET(tp->t_state, TS_ASLEEP); 576 error = ttysleep(tp, &tp->t_outq, TTOPRI | PCATCH, ttyout, 0); 577 splx(s); 578 if (error) 579 return (error); 580 } 581 go: 582 if (putc(c, &tp->t_outq) < 0) { 583 printf("irframe: putc failed\n"); 584 return (EIO); 585 } 586 return (0); 587 } 588 589 int 590 irframet_write(void *h, struct uio *uio, int flag) 591 { 592 struct tty *tp = h; 593 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 594 u_int8_t buf[MAX_IRDA_FRAME]; 595 int n; 596 597 DPRINTF(("%s: resid=%d, iovcnt=%d, offset=%ld\n", 598 __FUNCTION__, uio->uio_resid, uio->uio_iovcnt, 599 (long)uio->uio_offset)); 600 601 n = irda_sir_frame(buf, MAX_IRDA_FRAME, uio, sc->sc_params.ebofs); 602 if (n < 0) { 603 #ifdef IRFRAMET_DEBUG 604 printf("%s: irda_sir_frame() error=%d\n", __FUNCTION__, -n); 605 #endif 606 return (-n); 607 } 608 return (irt_write_frame(tp, buf, n)); 609 } 610 611 int 612 irt_write_frame(struct tty *tp, u_int8_t *buf, size_t len) 613 { 614 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 615 int error, i; 616 617 DPRINTF(("%s: tp=%p len=%d\n", __FUNCTION__, tp, len)); 618 619 lockmgr(&sc->sc_wr_lk, LK_EXCLUSIVE, NULL); 620 error = 0; 621 for (i = 0; !error && i < len; i++) 622 error = irt_putc(tp, buf[i]); 623 lockmgr(&sc->sc_wr_lk, LK_RELEASE, NULL); 624 625 irframetstart(tp); 626 627 DPRINTF(("%s: done, error=%d\n", __FUNCTION__, error)); 628 629 return (error); 630 } 631 632 int 633 irframet_poll(void *h, int events, struct proc *p) 634 { 635 struct tty *tp = h; 636 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 637 int revents = 0; 638 int s; 639 640 DPRINTF(("%s: sc=%p\n", __FUNCTION__, sc)); 641 642 s = splir(); 643 /* XXX is this a good check? */ 644 if (events & (POLLOUT | POLLWRNORM)) 645 if (tp->t_outq.c_cc <= tp->t_lowat) 646 revents |= events & (POLLOUT | POLLWRNORM); 647 648 if (events & (POLLIN | POLLRDNORM)) { 649 if (sc->sc_nframes > 0) { 650 DPRINTF(("%s: have data\n", __FUNCTION__)); 651 revents |= events & (POLLIN | POLLRDNORM); 652 } else { 653 DPRINTF(("%s: recording select\n", __FUNCTION__)); 654 selrecord(p, &sc->sc_rsel); 655 } 656 } 657 splx(s); 658 659 return (revents); 660 } 661 662 int 663 irframet_set_params(void *h, struct irda_params *p) 664 { 665 struct tty *tp = h; 666 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 667 int i; 668 669 DPRINTF(("%s: tp=%p speed=%d ebofs=%d maxsize=%d\n", 670 __FUNCTION__, tp, p->speed, p->ebofs, p->maxsize)); 671 672 if (p->speed != sc->sc_params.speed) { 673 /* Checked in irframe.c */ 674 lockmgr(&sc->sc_wr_lk, LK_EXCLUSIVE, NULL); 675 irt_dongles[sc->sc_dongle].setspeed(tp, p->speed); 676 lockmgr(&sc->sc_wr_lk, LK_RELEASE, NULL); 677 sc->sc_params.speed = p->speed; 678 } 679 680 /* Max size checked in irframe.c */ 681 sc->sc_params.ebofs = p->ebofs; 682 /* Max size checked in irframe.c */ 683 if (sc->sc_params.maxsize != p->maxsize) { 684 sc->sc_params.maxsize = p->maxsize; 685 if (sc->sc_inbuf != NULL) 686 free(sc->sc_inbuf, M_DEVBUF); 687 for (i = 0; i < MAXFRAMES; i++) 688 if (sc->sc_frames[i].buf != NULL) 689 free(sc->sc_frames[i].buf, M_DEVBUF); 690 if (sc->sc_params.maxsize != 0) { 691 sc->sc_inbuf = malloc(sc->sc_params.maxsize+2, 692 M_DEVBUF, M_WAITOK); 693 for (i = 0; i < MAXFRAMES; i++) 694 sc->sc_frames[i].buf = 695 malloc(sc->sc_params.maxsize, 696 M_DEVBUF, M_WAITOK); 697 } else { 698 sc->sc_inbuf = NULL; 699 for (i = 0; i < MAXFRAMES; i++) 700 sc->sc_frames[i].buf = NULL; 701 } 702 } 703 sc->sc_framestate = FRAME_OUTSIDE; 704 705 return (0); 706 } 707 708 int 709 irframet_get_speeds(void *h, int *speeds) 710 { 711 struct tty *tp = h; 712 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 713 714 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 715 716 if (sc == NULL) /* during attach */ 717 *speeds = IRDA_SPEEDS_SIR; 718 else 719 *speeds = irt_dongles[sc->sc_dongle].speedmask; 720 return (0); 721 } 722 723 int 724 irframet_get_turnarounds(void *h, int *turnarounds) 725 { 726 struct tty *tp = h; 727 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 728 729 DPRINTF(("%s: tp=%p\n", __FUNCTION__, tp)); 730 731 *turnarounds = irt_dongles[sc->sc_dongle].turnmask; 732 return (0); 733 } 734 735 void 736 irt_ioctl(struct tty *tp, u_long cmd, void *arg) 737 { 738 int error; 739 dev_t dev; 740 741 dev = tp->t_dev; 742 error = cdevsw[major(dev)].d_ioctl(dev, cmd, arg, 0, curproc); 743 #ifdef DIAGNOSTIC 744 if (error) 745 printf("irt_ioctl: cmd=0x%08lx error=%d\n", cmd, error); 746 #endif 747 } 748 749 void 750 irt_setspeed(struct tty *tp, u_int speed) 751 { 752 struct termios tt; 753 754 irt_ioctl(tp, TIOCGETA, &tt); 755 tt.c_ispeed = tt.c_ospeed = speed; 756 tt.c_cflag &= ~HUPCL; 757 tt.c_cflag |= CLOCAL; 758 irt_ioctl(tp, TIOCSETAF, &tt); 759 } 760 761 void 762 irt_setline(struct tty *tp, u_int line) 763 { 764 int mline; 765 766 irt_ioctl(tp, TIOCMGET, &mline); 767 mline &= ~(TIOCM_DTR | TIOCM_RTS); 768 mline |= line; 769 irt_ioctl(tp, TIOCMSET, (caddr_t)&mline); 770 } 771 772 void 773 irt_delay(struct tty *tp, u_int ms) 774 { 775 if (cold) 776 delay(ms * 1000); 777 else 778 tsleep(&irt_delay, PZERO, "irtdly", ms * hz / 1000 + 1); 779 780 } 781 782 /********************************************************************** 783 * No dongle 784 **********************************************************************/ 785 void 786 irts_none(struct tty *tp, u_int speed) 787 { 788 irt_setspeed(tp, speed); 789 } 790 791 /********************************************************************** 792 * Tekram 793 **********************************************************************/ 794 #define TEKRAM_PW 0x10 795 796 #define TEKRAM_115200 (TEKRAM_PW|0x00) 797 #define TEKRAM_57600 (TEKRAM_PW|0x01) 798 #define TEKRAM_38400 (TEKRAM_PW|0x02) 799 #define TEKRAM_19200 (TEKRAM_PW|0x03) 800 #define TEKRAM_9600 (TEKRAM_PW|0x04) 801 #define TEKRAM_2400 (TEKRAM_PW|0x08) 802 803 #define TEKRAM_TV (TEKRAM_PW|0x05) 804 805 void 806 irts_tekram(struct tty *tp, u_int speed) 807 { 808 int s; 809 810 irt_setspeed(tp, 9600); 811 irt_setline(tp, 0); 812 irt_delay(tp, 50); 813 814 irt_setline(tp, TIOCM_RTS); 815 irt_delay(tp, 1); 816 817 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 818 irt_delay(tp, 1); /* 50 us */ 819 820 irt_setline(tp, TIOCM_DTR); 821 irt_delay(tp, 1); /* 7 us */ 822 823 switch(speed) { 824 case 115200: s = TEKRAM_115200; break; 825 case 57600: s = TEKRAM_57600; break; 826 case 38400: s = TEKRAM_38400; break; 827 case 19200: s = TEKRAM_19200; break; 828 case 2400: s = TEKRAM_2400; break; 829 default: s = TEKRAM_9600; break; 830 } 831 irt_putc(tp, s); 832 irframetstart(tp); 833 834 irt_delay(tp, 100); 835 836 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 837 if (speed != 9600) 838 irt_setspeed(tp, speed); 839 irt_delay(tp, 1); /* 50 us */ 840 } 841 842 /********************************************************************** 843 * Jeteye 844 **********************************************************************/ 845 void 846 irts_jeteye(struct tty *tp, u_int speed) 847 { 848 switch (speed) { 849 case 19200: 850 irt_setline(tp, TIOCM_DTR); 851 break; 852 case 115200: 853 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 854 break; 855 default: /*9600*/ 856 irt_setline(tp, TIOCM_RTS); 857 break; 858 } 859 irt_setspeed(tp, speed); 860 } 861 862 /********************************************************************** 863 * Actisys 864 **********************************************************************/ 865 void 866 irts_actisys(struct tty *tp, u_int speed) 867 { 868 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 869 int pulses; 870 871 irt_setspeed(tp, speed); 872 873 switch(speed) { 874 case 19200: pulses=1; break; 875 case 57600: pulses=2; break; 876 case 115200: pulses=3; break; 877 case 38400: pulses=4; break; 878 default: /* 9600 */ pulses=0; break; 879 } 880 881 if (sc->sc_dongle_private == 0) { 882 sc->sc_dongle_private = 1; 883 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 884 /* 885 * Must wait at least 50ms after initial 886 * power on to charge internal capacitor 887 */ 888 irt_delay(tp, 50); 889 } 890 irt_setline(tp, TIOCM_RTS); 891 delay(2); 892 for (;;) { 893 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 894 delay(2); 895 if (--pulses <= 0) 896 break; 897 irt_setline(tp, TIOCM_DTR); 898 delay(2); 899 } 900 } 901 902 /********************************************************************** 903 * Litelink 904 **********************************************************************/ 905 void 906 irts_litelink(struct tty *tp, u_int speed) 907 { 908 struct irframet_softc *sc = (struct irframet_softc *)tp->t_sc; 909 int pulses; 910 911 irt_setspeed(tp, speed); 912 913 switch(speed) { 914 case 57600: pulses=1; break; 915 case 38400: pulses=2; break; 916 case 19200: pulses=3; break; 917 case 9600: pulses=4; break; 918 default: /* 115200 */ pulses=0; break; 919 } 920 921 if (sc->sc_dongle_private == 0) { 922 sc->sc_dongle_private = 1; 923 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 924 } 925 irt_setline(tp, TIOCM_RTS); 926 irt_delay(tp, 1); /* 15 us */; 927 for (;;) { 928 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 929 irt_delay(tp, 1); /* 15 us */; 930 if (--pulses <= 0) 931 break; 932 irt_setline(tp, TIOCM_DTR); 933 irt_delay(tp, 1); /* 15 us */; 934 } 935 } 936 937 /********************************************************************** 938 * Girbil 939 **********************************************************************/ 940 /* Control register 1 */ 941 #define GIRBIL_TXEN 0x01 /* Enable transmitter */ 942 #define GIRBIL_RXEN 0x02 /* Enable receiver */ 943 #define GIRBIL_ECAN 0x04 /* Cancel self emmited data */ 944 #define GIRBIL_ECHO 0x08 /* Echo control characters */ 945 946 /* LED Current Register */ 947 #define GIRBIL_HIGH 0x20 948 #define GIRBIL_MEDIUM 0x21 949 #define GIRBIL_LOW 0x22 950 951 /* Baud register */ 952 #define GIRBIL_2400 0x30 953 #define GIRBIL_4800 0x31 954 #define GIRBIL_9600 0x32 955 #define GIRBIL_19200 0x33 956 #define GIRBIL_38400 0x34 957 #define GIRBIL_57600 0x35 958 #define GIRBIL_115200 0x36 959 960 /* Mode register */ 961 #define GIRBIL_IRDA 0x40 962 #define GIRBIL_ASK 0x41 963 964 /* Control register 2 */ 965 #define GIRBIL_LOAD 0x51 /* Load the new baud rate value */ 966 967 void 968 irts_girbil(struct tty *tp, u_int speed) 969 { 970 int s; 971 972 irt_setspeed(tp, 9600); 973 irt_setline(tp, TIOCM_DTR); 974 irt_delay(tp, 5); 975 irt_setline(tp, TIOCM_RTS); 976 irt_delay(tp, 20); 977 switch(speed) { 978 case 115200: s = GIRBIL_115200; break; 979 case 57600: s = GIRBIL_57600; break; 980 case 38400: s = GIRBIL_38400; break; 981 case 19200: s = GIRBIL_19200; break; 982 case 4800: s = GIRBIL_4800; break; 983 case 2400: s = GIRBIL_2400; break; 984 default: s = GIRBIL_9600; break; 985 } 986 irt_putc(tp, GIRBIL_TXEN|GIRBIL_RXEN); 987 irt_putc(tp, s); 988 irt_putc(tp, GIRBIL_LOAD); 989 irframetstart(tp); 990 irt_delay(tp, 100); 991 irt_setline(tp, TIOCM_DTR | TIOCM_RTS); 992 if (speed != 9600) 993 irt_setspeed(tp, speed); 994 } 995
Indexes created Tue Sep 30 07:10:03 GMT 2025