| 1 | /* |
| 2 | * Copyright 1993-2003 by The XFree86 Project, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 18 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 19 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 20 | * SOFTWARE. |
| 21 | * |
| 22 | * Except as contained in this notice, the name of the XFree86 Project shall |
| 23 | * not be used in advertising or otherwise to promote the sale, use or other |
| 24 | * dealings in this Software without prior written authorization from the |
| 25 | * XFree86 Project. |
| 26 | */ |
| 27 | /* |
| 28 | * |
| 29 | * Copyright (c) 1997 Metro Link Incorporated |
| 30 | * |
| 31 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 32 | * copy of this software and associated documentation files (the "Software"), |
| 33 | * to deal in the Software without restriction, including without limitation |
| 34 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 35 | * and/or sell copies of the Software, and to permit persons to whom the |
| 36 | * Software is furnished to do so, subject to the following conditions: |
| 37 | * |
| 38 | * The above copyright notice and this permission notice shall be included in |
| 39 | * all copies or substantial portions of the Software. |
| 40 | * |
| 41 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 42 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 43 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 44 | * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 45 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 46 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 47 | * SOFTWARE. |
| 48 | * |
| 49 | * Except as contained in this notice, the name of the Metro Link shall not be |
| 50 | * used in advertising or otherwise to promote the sale, use or other dealings |
| 51 | * in this Software without prior written authorization from Metro Link. |
| 52 | * |
| 53 | */ |
| 54 | |
| 55 | #ifdef HAVE_XORG_CONFIG_H |
| 56 | #include <xorg-config.h> |
| 57 | #endif |
| 58 | |
| 59 | #include <X11/X.h> |
| 60 | #include "xf86.h" |
| 61 | #include "xf86Priv.h" |
| 62 | #include "xf86_OSlib.h" |
| 63 | |
| 64 | static int |
| 65 | GetBaud(int baudrate) |
| 66 | { |
| 67 | #ifdef B300 |
| 68 | if (baudrate == 300) |
| 69 | return B300; |
| 70 | #endif |
| 71 | #ifdef B1200 |
| 72 | if (baudrate == 1200) |
| 73 | return B1200; |
| 74 | #endif |
| 75 | #ifdef B2400 |
| 76 | if (baudrate == 2400) |
| 77 | return B2400; |
| 78 | #endif |
| 79 | #ifdef B4800 |
| 80 | if (baudrate == 4800) |
| 81 | return B4800; |
| 82 | #endif |
| 83 | #ifdef B9600 |
| 84 | if (baudrate == 9600) |
| 85 | return B9600; |
| 86 | #endif |
| 87 | #ifdef B19200 |
| 88 | if (baudrate == 19200) |
| 89 | return B19200; |
| 90 | #endif |
| 91 | #ifdef B38400 |
| 92 | if (baudrate == 38400) |
| 93 | return B38400; |
| 94 | #endif |
| 95 | #ifdef B57600 |
| 96 | if (baudrate == 57600) |
| 97 | return B57600; |
| 98 | #endif |
| 99 | #ifdef B115200 |
| 100 | if (baudrate == 115200) |
| 101 | return B115200; |
| 102 | #endif |
| 103 | #ifdef B230400 |
| 104 | if (baudrate == 230400) |
| 105 | return B230400; |
| 106 | #endif |
| 107 | #ifdef B460800 |
| 108 | if (baudrate == 460800) |
| 109 | return B460800; |
| 110 | #endif |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | int |
| 115 | xf86OpenSerial(XF86OptionPtr options) |
| 116 | { |
| 117 | struct termios t; |
| 118 | int fd, i; |
| 119 | char *dev; |
| 120 | |
| 121 | dev = xf86SetStrOption(options, "Device", NULL); |
| 122 | if (!dev) { |
| 123 | xf86Msg(X_ERROR, "xf86OpenSerial: No Device specified.\n"); |
| 124 | return -1; |
| 125 | } |
| 126 | |
| 127 | SYSCALL(fd = open(dev, O_RDWR | O_NONBLOCK)); |
| 128 | if (fd == -1) { |
| 129 | xf86Msg(X_ERROR, |
| 130 | "xf86OpenSerial: Cannot open device %s\n\t%s.\n", |
| 131 | dev, strerror(errno)); |
| 132 | free(dev); |
| 133 | return -1; |
| 134 | } |
| 135 | |
| 136 | if (!isatty(fd)) { |
| 137 | /* Allow non-tty devices to be opened. */ |
| 138 | free(dev); |
| 139 | return fd; |
| 140 | } |
| 141 | |
| 142 | /* set up default port parameters */ |
| 143 | SYSCALL(tcgetattr(fd, &t)); |
| 144 | t.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR |
| 145 | | IGNCR | ICRNL | IXON); |
| 146 | t.c_oflag &= ~OPOST; |
| 147 | t.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); |
| 148 | t.c_cflag &= ~(CSIZE | PARENB); |
| 149 | t.c_cflag |= CS8 | CLOCAL; |
| 150 | |
| 151 | cfsetispeed(&t, B9600); |
| 152 | cfsetospeed(&t, B9600); |
| 153 | t.c_cc[VMIN] = 1; |
| 154 | t.c_cc[VTIME] = 0; |
| 155 | |
| 156 | SYSCALL(tcsetattr(fd, TCSANOW, &t)); |
| 157 | |
| 158 | if (xf86SetSerial(fd, options) == -1) { |
| 159 | SYSCALL(close(fd)); |
| 160 | free(dev); |
| 161 | return -1; |
| 162 | } |
| 163 | |
| 164 | SYSCALL(i = fcntl(fd, F_GETFL, 0)); |
| 165 | if (i == -1) { |
| 166 | SYSCALL(close(fd)); |
| 167 | free(dev); |
| 168 | return -1; |
| 169 | } |
| 170 | i &= ~O_NONBLOCK; |
| 171 | SYSCALL(i = fcntl(fd, F_SETFL, i)); |
| 172 | if (i == -1) { |
| 173 | SYSCALL(close(fd)); |
| 174 | free(dev); |
| 175 | return -1; |
| 176 | } |
| 177 | free(dev); |
| 178 | return fd; |
| 179 | } |
| 180 | |
| 181 | int |
| 182 | xf86SetSerial(int fd, XF86OptionPtr options) |
| 183 | { |
| 184 | struct termios t; |
| 185 | int val; |
| 186 | const char *s; |
| 187 | int baud, r; |
| 188 | |
| 189 | if (fd < 0) |
| 190 | return -1; |
| 191 | |
| 192 | /* Don't try to set parameters for non-tty devices. */ |
| 193 | if (!isatty(fd)) |
| 194 | return 0; |
| 195 | |
| 196 | SYSCALL(tcgetattr(fd, &t)); |
| 197 | |
| 198 | if ((val = xf86SetIntOption(options, "BaudRate", 0))) { |
| 199 | if ((baud = GetBaud(val))) { |
| 200 | cfsetispeed(&t, baud); |
| 201 | cfsetospeed(&t, baud); |
| 202 | } |
| 203 | else { |
| 204 | xf86Msg(X_ERROR, "Invalid Option BaudRate value: %d\n", val); |
| 205 | return -1; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | if ((val = xf86SetIntOption(options, "StopBits", 0))) { |
| 210 | switch (val) { |
| 211 | case 1: |
| 212 | t.c_cflag &= ~(CSTOPB); |
| 213 | break; |
| 214 | case 2: |
| 215 | t.c_cflag |= CSTOPB; |
| 216 | break; |
| 217 | default: |
| 218 | xf86Msg(X_ERROR, "Invalid Option StopBits value: %d\n", val); |
| 219 | return -1; |
| 220 | break; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | if ((val = xf86SetIntOption(options, "DataBits", 0))) { |
| 225 | switch (val) { |
| 226 | case 5: |
| 227 | t.c_cflag &= ~(CSIZE); |
| 228 | t.c_cflag |= CS5; |
| 229 | break; |
| 230 | case 6: |
| 231 | t.c_cflag &= ~(CSIZE); |
| 232 | t.c_cflag |= CS6; |
| 233 | break; |
| 234 | case 7: |
| 235 | t.c_cflag &= ~(CSIZE); |
| 236 | t.c_cflag |= CS7; |
| 237 | break; |
| 238 | case 8: |
| 239 | t.c_cflag &= ~(CSIZE); |
| 240 | t.c_cflag |= CS8; |
| 241 | break; |
| 242 | default: |
| 243 | xf86Msg(X_ERROR, "Invalid Option DataBits value: %d\n", val); |
| 244 | return -1; |
| 245 | break; |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | if ((s = xf86SetStrOption(options, "Parity", NULL))) { |
| 250 | if (xf86NameCmp(s, "Odd") == 0) { |
| 251 | t.c_cflag |= PARENB | PARODD; |
| 252 | } |
| 253 | else if (xf86NameCmp(s, "Even") == 0) { |
| 254 | t.c_cflag |= PARENB; |
| 255 | t.c_cflag &= ~(PARODD); |
| 256 | } |
| 257 | else if (xf86NameCmp(s, "None") == 0) { |
| 258 | t.c_cflag &= ~(PARENB); |
| 259 | } |
| 260 | else { |
| 261 | xf86Msg(X_ERROR, "Invalid Option Parity value: %s\n", s); |
| 262 | return -1; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | if ((val = xf86SetIntOption(options, "Vmin", -1)) != -1) { |
| 267 | t.c_cc[VMIN] = val; |
| 268 | } |
| 269 | if ((val = xf86SetIntOption(options, "Vtime", -1)) != -1) { |
| 270 | t.c_cc[VTIME] = val; |
| 271 | } |
| 272 | |
| 273 | if ((s = xf86SetStrOption(options, "FlowControl", NULL))) { |
| 274 | xf86MarkOptionUsedByName(options, "FlowControl"); |
| 275 | if (xf86NameCmp(s, "Xoff") == 0) { |
| 276 | t.c_iflag |= IXOFF; |
| 277 | } |
| 278 | else if (xf86NameCmp(s, "Xon") == 0) { |
| 279 | t.c_iflag |= IXON; |
| 280 | } |
| 281 | else if (xf86NameCmp(s, "XonXoff") == 0) { |
| 282 | t.c_iflag |= IXON | IXOFF; |
| 283 | } |
| 284 | else if (xf86NameCmp(s, "None") == 0) { |
| 285 | t.c_iflag &= ~(IXON | IXOFF); |
| 286 | } |
| 287 | else { |
| 288 | xf86Msg(X_ERROR, "Invalid Option FlowControl value: %s\n", s); |
| 289 | return -1; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | if ((xf86SetBoolOption(options, "ClearDTR", FALSE))) { |
| 294 | #ifdef CLEARDTR_SUPPORT |
| 295 | #if defined(TIOCMBIC) |
| 296 | val = TIOCM_DTR; |
| 297 | SYSCALL(ioctl(fd, TIOCMBIC, &val)); |
| 298 | #else |
| 299 | SYSCALL(ioctl(fd, TIOCCDTR, NULL)); |
| 300 | #endif |
| 301 | #else |
| 302 | xf86Msg(X_WARNING, "Option ClearDTR not supported on this OS\n"); |
| 303 | return -1; |
| 304 | #endif |
| 305 | xf86MarkOptionUsedByName(options, "ClearDTR"); |
| 306 | } |
| 307 | |
| 308 | if ((xf86SetBoolOption(options, "ClearRTS", FALSE))) { |
| 309 | xf86Msg(X_WARNING, "Option ClearRTS not supported on this OS\n"); |
| 310 | return -1; |
| 311 | xf86MarkOptionUsedByName(options, "ClearRTS"); |
| 312 | } |
| 313 | |
| 314 | SYSCALL(r = tcsetattr(fd, TCSANOW, &t)); |
| 315 | return r; |
| 316 | } |
| 317 | |
| 318 | int |
| 319 | xf86SetSerialSpeed(int fd, int speed) |
| 320 | { |
| 321 | struct termios t; |
| 322 | int baud, r; |
| 323 | |
| 324 | if (fd < 0) |
| 325 | return -1; |
| 326 | |
| 327 | /* Don't try to set parameters for non-tty devices. */ |
| 328 | if (!isatty(fd)) |
| 329 | return 0; |
| 330 | |
| 331 | SYSCALL(tcgetattr(fd, &t)); |
| 332 | |
| 333 | if ((baud = GetBaud(speed))) { |
| 334 | cfsetispeed(&t, baud); |
| 335 | cfsetospeed(&t, baud); |
| 336 | } |
| 337 | else { |
| 338 | xf86Msg(X_ERROR, "Invalid Option BaudRate value: %d\n", speed); |
| 339 | return -1; |
| 340 | } |
| 341 | |
| 342 | SYSCALL(r = tcsetattr(fd, TCSANOW, &t)); |
| 343 | return r; |
| 344 | } |
| 345 | |
| 346 | int |
| 347 | xf86ReadSerial(int fd, void *buf, int count) |
| 348 | { |
| 349 | int r; |
| 350 | int i; |
| 351 | |
| 352 | SYSCALL(r = read(fd, buf, count)); |
| 353 | DebugF("ReadingSerial: 0x%x", (unsigned char) *(((unsigned char *) buf))); |
| 354 | for (i = 1; i < r; i++) |
| 355 | DebugF(", 0x%x", (unsigned char) *(((unsigned char *) buf) + i)); |
| 356 | DebugF("\n"); |
| 357 | return r; |
| 358 | } |
| 359 | |
| 360 | int |
| 361 | xf86WriteSerial(int fd, const void *buf, int count) |
| 362 | { |
| 363 | int r; |
| 364 | int i; |
| 365 | |
| 366 | DebugF("WritingSerial: 0x%x", (unsigned char) *(((unsigned char *) buf))); |
| 367 | for (i = 1; i < count; i++) |
| 368 | DebugF(", 0x%x", (unsigned char) *(((unsigned char *) buf) + i)); |
| 369 | DebugF("\n"); |
| 370 | SYSCALL(r = write(fd, buf, count)); |
| 371 | return r; |
| 372 | } |
| 373 | |
| 374 | int |
| 375 | xf86CloseSerial(int fd) |
| 376 | { |
| 377 | int r; |
| 378 | |
| 379 | SYSCALL(r = close(fd)); |
| 380 | return r; |
| 381 | } |
| 382 | |
| 383 | int |
| 384 | xf86WaitForInput(int fd, int timeout) |
| 385 | { |
| 386 | fd_set readfds; |
| 387 | struct timeval to; |
| 388 | int r; |
| 389 | |
| 390 | FD_ZERO(&readfds); |
| 391 | |
| 392 | if (fd >= 0) { |
| 393 | FD_SET(fd, &readfds); |
| 394 | } |
| 395 | |
| 396 | to.tv_sec = timeout / 1000000; |
| 397 | to.tv_usec = timeout % 1000000; |
| 398 | |
| 399 | if (fd >= 0) { |
| 400 | SYSCALL(r = select(FD_SETSIZE, &readfds, NULL, NULL, &to)); |
| 401 | } |
| 402 | else { |
| 403 | SYSCALL(r = select(FD_SETSIZE, NULL, NULL, NULL, &to)); |
| 404 | } |
| 405 | xf86ErrorFVerb(9, "select returned %d\n", r); |
| 406 | return r; |
| 407 | } |
| 408 | |
| 409 | int |
| 410 | xf86SerialSendBreak(int fd, int duration) |
| 411 | { |
| 412 | int r; |
| 413 | |
| 414 | SYSCALL(r = tcsendbreak(fd, duration)); |
| 415 | return r; |
| 416 | |
| 417 | } |
| 418 | |
| 419 | int |
| 420 | xf86FlushInput(int fd) |
| 421 | { |
| 422 | fd_set fds; |
| 423 | struct timeval timeout; |
| 424 | /* this needs to be big enough to flush an evdev event. */ |
| 425 | char c[256]; |
| 426 | |
| 427 | DebugF("FlushingSerial\n"); |
| 428 | if (tcflush(fd, TCIFLUSH) == 0) |
| 429 | return 0; |
| 430 | |
| 431 | timeout.tv_sec = 0; |
| 432 | timeout.tv_usec = 0; |
| 433 | FD_ZERO(&fds); |
| 434 | FD_SET(fd, &fds); |
| 435 | while (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) { |
| 436 | if (read(fd, &c, sizeof(c)) < 1) |
| 437 | return 0; |
| 438 | FD_ZERO(&fds); |
| 439 | FD_SET(fd, &fds); |
| 440 | } |
| 441 | return 0; |
| 442 | } |
| 443 | |
| 444 | static struct states { |
| 445 | int xf; |
| 446 | int os; |
| 447 | } modemStates[] = { |
| 448 | #ifdef TIOCM_LE |
| 449 | { |
| 450 | XF86_M_LE, TIOCM_LE}, |
| 451 | #endif |
| 452 | #ifdef TIOCM_DTR |
| 453 | { |
| 454 | XF86_M_DTR, TIOCM_DTR}, |
| 455 | #endif |
| 456 | #ifdef TIOCM_RTS |
| 457 | { |
| 458 | XF86_M_RTS, TIOCM_RTS}, |
| 459 | #endif |
| 460 | #ifdef TIOCM_ST |
| 461 | { |
| 462 | XF86_M_ST, TIOCM_ST}, |
| 463 | #endif |
| 464 | #ifdef TIOCM_SR |
| 465 | { |
| 466 | XF86_M_SR, TIOCM_SR}, |
| 467 | #endif |
| 468 | #ifdef TIOCM_CTS |
| 469 | { |
| 470 | XF86_M_CTS, TIOCM_CTS}, |
| 471 | #endif |
| 472 | #ifdef TIOCM_CAR |
| 473 | { |
| 474 | XF86_M_CAR, TIOCM_CAR}, |
| 475 | #elif defined(TIOCM_CD) |
| 476 | { |
| 477 | XF86_M_CAR, TIOCM_CD}, |
| 478 | #endif |
| 479 | #ifdef TIOCM_RNG |
| 480 | { |
| 481 | XF86_M_RNG, TIOCM_RNG}, |
| 482 | #elif defined(TIOCM_RI) |
| 483 | { |
| 484 | XF86_M_CAR, TIOCM_RI}, |
| 485 | #endif |
| 486 | #ifdef TIOCM_DSR |
| 487 | { |
| 488 | XF86_M_DSR, TIOCM_DSR}, |
| 489 | #endif |
| 490 | }; |
| 491 | |
| 492 | static int numStates = sizeof(modemStates) / sizeof(modemStates[0]); |
| 493 | |
| 494 | static int |
| 495 | xf2osState(int state) |
| 496 | { |
| 497 | int i; |
| 498 | int ret = 0; |
| 499 | |
| 500 | for (i = 0; i < numStates; i++) |
| 501 | if (state & modemStates[i].xf) |
| 502 | ret |= modemStates[i].os; |
| 503 | return ret; |
| 504 | } |
| 505 | |
| 506 | static int |
| 507 | os2xfState(int state) |
| 508 | { |
| 509 | int i; |
| 510 | int ret = 0; |
| 511 | |
| 512 | for (i = 0; i < numStates; i++) |
| 513 | if (state & modemStates[i].os) |
| 514 | ret |= modemStates[i].xf; |
| 515 | return ret; |
| 516 | } |
| 517 | |
| 518 | static int |
| 519 | getOsStateMask(void) |
| 520 | { |
| 521 | int i; |
| 522 | int ret = 0; |
| 523 | |
| 524 | for (i = 0; i < numStates; i++) |
| 525 | ret |= modemStates[i].os; |
| 526 | return ret; |
| 527 | } |
| 528 | |
| 529 | static int osStateMask = 0; |
| 530 | |
| 531 | int |
| 532 | xf86SetSerialModemState(int fd, int state) |
| 533 | { |
| 534 | int ret; |
| 535 | int s; |
| 536 | |
| 537 | if (fd < 0) |
| 538 | return -1; |
| 539 | |
| 540 | /* Don't try to set parameters for non-tty devices. */ |
| 541 | if (!isatty(fd)) |
| 542 | return 0; |
| 543 | |
| 544 | #ifndef TIOCMGET |
| 545 | return -1; |
| 546 | #else |
| 547 | if (!osStateMask) |
| 548 | osStateMask = getOsStateMask(); |
| 549 | |
| 550 | state = xf2osState(state); |
| 551 | SYSCALL((ret = ioctl(fd, TIOCMGET, &s))); |
| 552 | if (ret < 0) |
| 553 | return -1; |
| 554 | s &= ~osStateMask; |
| 555 | s |= state; |
| 556 | SYSCALL((ret = ioctl(fd, TIOCMSET, &s))); |
| 557 | if (ret < 0) |
| 558 | return -1; |
| 559 | else |
| 560 | return 0; |
| 561 | #endif |
| 562 | } |
| 563 | |
| 564 | int |
| 565 | xf86GetSerialModemState(int fd) |
| 566 | { |
| 567 | int ret; |
| 568 | int s; |
| 569 | |
| 570 | if (fd < 0) |
| 571 | return -1; |
| 572 | |
| 573 | /* Don't try to set parameters for non-tty devices. */ |
| 574 | if (!isatty(fd)) |
| 575 | return 0; |
| 576 | |
| 577 | #ifndef TIOCMGET |
| 578 | return -1; |
| 579 | #else |
| 580 | SYSCALL((ret = ioctl(fd, TIOCMGET, &s))); |
| 581 | if (ret < 0) |
| 582 | return -1; |
| 583 | return os2xfState(s); |
| 584 | #endif |
| 585 | } |
| 586 | |
| 587 | int |
| 588 | xf86SerialModemSetBits(int fd, int bits) |
| 589 | { |
| 590 | int ret; |
| 591 | int s; |
| 592 | |
| 593 | if (fd < 0) |
| 594 | return -1; |
| 595 | |
| 596 | /* Don't try to set parameters for non-tty devices. */ |
| 597 | if (!isatty(fd)) |
| 598 | return 0; |
| 599 | |
| 600 | #ifndef TIOCMGET |
| 601 | return -1; |
| 602 | #else |
| 603 | s = xf2osState(bits); |
| 604 | SYSCALL((ret = ioctl(fd, TIOCMBIS, &s))); |
| 605 | return ret; |
| 606 | #endif |
| 607 | } |
| 608 | |
| 609 | int |
| 610 | xf86SerialModemClearBits(int fd, int bits) |
| 611 | { |
| 612 | int ret; |
| 613 | int s; |
| 614 | |
| 615 | if (fd < 0) |
| 616 | return -1; |
| 617 | |
| 618 | /* Don't try to set parameters for non-tty devices. */ |
| 619 | if (!isatty(fd)) |
| 620 | return 0; |
| 621 | |
| 622 | #ifndef TIOCMGET |
| 623 | return -1; |
| 624 | #else |
| 625 | s = xf2osState(bits); |
| 626 | SYSCALL((ret = ioctl(fd, TIOCMBIC, &s))); |
| 627 | return ret; |
| 628 | #endif |
| 629 | } |