| 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 | |