dlls/ntdll/serial.c

   1 /* Main file for COMM support
   2  *
   3  * DEC 93 Erik Bos <erik@xs4all.nl>
   4  * Copyright 1996 Marcus Meissner
   5  * Copyright 2005,2006 Eric Pouech
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <errno.h>
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #include <stdio.h>
  30 #ifdef HAVE_STRINGS_H
  31 # include <strings.h>
  32 #endif
  33 #ifdef HAVE_TERMIOS_H
  34 #include <termios.h>
  35 #endif
  36 #ifdef HAVE_IO_H
  37 # include <io.h>
  38 #endif
  39 #ifdef HAVE_UNISTD_H
  40 # include <unistd.h>
  41 #endif
  42 #include <fcntl.h>
  43 #ifdef HAVE_SYS_STAT_H
  44 # include <sys/stat.h>
  45 #endif
  46 #include <sys/types.h>
  47 #ifdef HAVE_SYS_FILIO_H
  48 # include <sys/filio.h>
  49 #endif
  50 #ifdef HAVE_SYS_IOCTL_H
  51 #include <sys/ioctl.h>
  52 #endif
  53 #ifdef HAVE_SYS_POLL_H
  54 # include <sys/poll.h>
  55 #endif
  56 #ifdef HAVE_SYS_MODEM_H
  57 # include <sys/modem.h>
  58 #endif
  59 #ifdef HAVE_SYS_STRTIO_H
  60 # include <sys/strtio.h>
  61 #endif
  62
  63 #define NONAMELESSUNION
  64 #define NONAMELESSSTRUCT
  65 #include "ntstatus.h"
  66 #define WIN32_NO_STATUS
  67 #include "windef.h"
  68 #include "winternl.h"
  69 #include "winioctl.h"
  70 #include "ddk/ntddser.h"
  71 #include "ntdll_misc.h"
  72 #include "wine/server.h"
  73 #include "wine/library.h"
  74 #include "wine/debug.h"
  75
  76 #ifdef HAVE_LINUX_SERIAL_H
  77 #ifdef HAVE_ASM_TYPES_H
  78 #include <asm/types.h>
  79 #endif
  80 #include <linux/serial.h>
  81 #endif
  82
  83 #if !defined(TIOCINQ) && defined(FIONREAD)
  84 #define TIOCINQ FIONREAD
  85 #endif
  86
  87 WINE_DEFAULT_DEBUG_CHANNEL(comm);
  88
  89 static const char* iocode2str(DWORD ioc)
  90 {
  91     switch (ioc)
  92     {
  93 #define X(x)    case (x): return #x
  94         X(IOCTL_SERIAL_CLEAR_STATS);
  95         X(IOCTL_SERIAL_CLR_DTR);
  96         X(IOCTL_SERIAL_CLR_RTS);
  97         X(IOCTL_SERIAL_CONFIG_SIZE);
  98         X(IOCTL_SERIAL_GET_BAUD_RATE);
  99         X(IOCTL_SERIAL_GET_CHARS);
 100         X(IOCTL_SERIAL_GET_COMMSTATUS);
 101         X(IOCTL_SERIAL_GET_DTRRTS);
 102         X(IOCTL_SERIAL_GET_HANDFLOW);
 103         X(IOCTL_SERIAL_GET_LINE_CONTROL);
 104         X(IOCTL_SERIAL_GET_MODEM_CONTROL);
 105         X(IOCTL_SERIAL_GET_MODEMSTATUS);
 106         X(IOCTL_SERIAL_GET_PROPERTIES);
 107         X(IOCTL_SERIAL_GET_STATS);
 108         X(IOCTL_SERIAL_GET_TIMEOUTS);
 109         X(IOCTL_SERIAL_GET_WAIT_MASK);
 110         X(IOCTL_SERIAL_IMMEDIATE_CHAR);
 111         X(IOCTL_SERIAL_LSRMST_INSERT);
 112         X(IOCTL_SERIAL_PURGE);
 113         X(IOCTL_SERIAL_RESET_DEVICE);
 114         X(IOCTL_SERIAL_SET_BAUD_RATE);
 115         X(IOCTL_SERIAL_SET_BREAK_ON);
 116         X(IOCTL_SERIAL_SET_BREAK_OFF);
 117         X(IOCTL_SERIAL_SET_CHARS);
 118         X(IOCTL_SERIAL_SET_DTR);
 119         X(IOCTL_SERIAL_SET_FIFO_CONTROL);
 120         X(IOCTL_SERIAL_SET_HANDFLOW);
 121         X(IOCTL_SERIAL_SET_LINE_CONTROL);
 122         X(IOCTL_SERIAL_SET_MODEM_CONTROL);
 123         X(IOCTL_SERIAL_SET_QUEUE_SIZE);
 124         X(IOCTL_SERIAL_SET_RTS);
 125         X(IOCTL_SERIAL_SET_TIMEOUTS);
 126         X(IOCTL_SERIAL_SET_WAIT_MASK);
 127         X(IOCTL_SERIAL_SET_XOFF);
 128         X(IOCTL_SERIAL_SET_XON);
 129         X(IOCTL_SERIAL_WAIT_ON_MASK);
 130         X(IOCTL_SERIAL_XOFF_COUNTER);
 131 #undef X
 132     default: { static char tmp[32]; sprintf(tmp, "IOCTL_SERIAL_%d\n", ioc); return tmp; }
 133     }
 134 }
 135
 136 static NTSTATUS get_baud_rate(int fd, SERIAL_BAUD_RATE* sbr)
 137 {
 138     struct termios port;
 139     int speed;
 140
 141     if (tcgetattr(fd, &port) == -1)
 142     {
 143         ERR("tcgetattr error '%s'\n", strerror(errno));
 144         return FILE_GetNtStatus();
 145     }
 146 #ifndef __EMX__
 147 #ifdef CBAUD
 148     speed = port.c_cflag & CBAUD;
 149 #else
 150     speed = cfgetospeed(&port);
 151 #endif
 152     switch (speed)
 153     {
 154     case B0:            sbr->BaudRate = 0;      break;
 155     case B50:           sbr->BaudRate = 50;     break;
 156     case B75:           sbr->BaudRate = 75;     break;
 157     case B110:          sbr->BaudRate = 110;    break;
 158     case B134:          sbr->BaudRate = 134;    break;
 159     case B150:          sbr->BaudRate = 150;    break;
 160     case B200:          sbr->BaudRate = 200;    break;
 161     case B300:          sbr->BaudRate = 300;    break;
 162     case B600:          sbr->BaudRate = 600;    break;
 163     case B1200:         sbr->BaudRate = 1200;   break;
 164     case B1800:         sbr->BaudRate = 1800;   break;
 165     case B2400:         sbr->BaudRate = 2400;   break;
 166     case B4800:         sbr->BaudRate = 4800;   break;
 167     case B9600:         sbr->BaudRate = 9600;   break;
 168     case B19200:        sbr->BaudRate = 19200;  break;
 169     case B38400:        sbr->BaudRate = 38400;  break;
 170 #ifdef B57600
 171     case B57600:        sbr->BaudRate = 57600;  break;
 172 #endif
 173 #ifdef B115200
 174     case B115200:       sbr->BaudRate = 115200; break;
 175 #endif
 176 #ifdef B230400
 177     case B230400:       sbr->BaudRate = 230400; break;
 178 #endif
 179 #ifdef B460800
 180     case B460800:       sbr->BaudRate = 460800; break;
 181 #endif
 182     default:
 183         ERR("unknown speed %x\n", speed);
 184         return STATUS_INVALID_PARAMETER;
 185     }
 186 #else
 187     return STATUS_INVALID_PARAMETER;
 188 #endif
 189     return STATUS_SUCCESS;
 190 }
 191
 192 static NTSTATUS get_hand_flow(int fd, SERIAL_HANDFLOW* shf)
 193 {
 194     int stat = 0;
 195     struct termios port;
 196
 197     if (tcgetattr(fd, &port) == -1)
 198     {
 199         ERR("tcgetattr error '%s'\n", strerror(errno));
 200         return FILE_GetNtStatus();
 201     }
 202     /* termios does not support DTR/DSR flow control */
 203     shf->ControlHandShake = 0;
 204     shf->FlowReplace = 0;
 205 #ifdef TIOCMGET
 206     if (ioctl(fd, TIOCMGET, &stat) == -1)
 207     {
 208         WARN("ioctl error '%s'\n", strerror(errno));
 209         shf->ControlHandShake |= SERIAL_DTR_CONTROL;
 210         shf->FlowReplace |= SERIAL_RTS_CONTROL;
 211     }
 212 #else
 213     WARN("Setting DTR/RTS to enabled by default\n");
 214     shf->ControlHandShake |= SERIAL_DTR_CONTROL;
 215     shf->FlowReplace |= SERIAL_RTS_CONTROL;
 216 #endif
 217 #ifdef TIOCM_DTR
 218     if (stat & TIOCM_DTR)
 219 #endif
 220         shf->ControlHandShake |= SERIAL_DTR_CONTROL;
 221 #ifdef CRTSCTS
 222     if (port.c_cflag & CRTSCTS)
 223     {
 224         shf->FlowReplace |= SERIAL_RTS_CONTROL;
 225         shf->ControlHandShake |= SERIAL_CTS_HANDSHAKE;
 226     }
 227     else
 228 #endif
 229     {
 230 #ifdef TIOCM_RTS
 231         if (stat & TIOCM_RTS)
 232 #endif
 233             shf->FlowReplace |= SERIAL_RTS_CONTROL;
 234     }
 235     if (port.c_iflag & IXOFF)
 236         shf->FlowReplace |= SERIAL_AUTO_RECEIVE;
 237     if (port.c_iflag & IXON)
 238         shf->FlowReplace |= SERIAL_AUTO_TRANSMIT;
 239
 240     shf->XonLimit = 10;
 241     shf->XoffLimit = 10;
 242     return STATUS_SUCCESS;
 243 }
 244
 245 static NTSTATUS get_line_control(int fd, SERIAL_LINE_CONTROL* slc)
 246 {
 247     struct termios port;
 248
 249     if (tcgetattr(fd, &port) == -1)
 250     {
 251         ERR("tcgetattr error '%s'\n", strerror(errno));
 252         return FILE_GetNtStatus();
 253     }
 254
 255 #ifdef CMSPAR
 256     switch (port.c_cflag & (PARENB | PARODD | CMSPAR))
 257 #else
 258     switch (port.c_cflag & (PARENB | PARODD))
 259 #endif
 260     {
 261     case 0:                     slc->Parity = NOPARITY;         break;
 262     case PARENB:                slc->Parity = EVENPARITY;       break;
 263     case PARENB|PARODD:         slc->Parity = ODDPARITY;        break;
 264 #ifdef CMSPAR
 265     case PARENB|CMSPAR:         slc->Parity = MARKPARITY;       break;
 266     case PARENB|PARODD|CMSPAR:  slc->Parity = SPACEPARITY;      break;
 267 #endif
 268     }
 269     switch (port.c_cflag & CSIZE)
 270     {
 271     case CS5:   slc->WordLength = 5;    break;
 272     case CS6:   slc->WordLength = 6;    break;
 273     case CS7:   slc->WordLength = 7;    break;
 274     case CS8:   slc->WordLength = 8;    break;
 275     default: ERR("unknown size %x\n", (UINT)(port.c_cflag & CSIZE));
 276     }
 277
 278     if (port.c_cflag & CSTOPB)
 279     {
 280         if (slc->WordLength == 5)
 281             slc->StopBits = ONE5STOPBITS;
 282         else
 283             slc->StopBits = TWOSTOPBITS;
 284     }
 285     else
 286         slc->StopBits = ONESTOPBIT;
 287
 288     return STATUS_SUCCESS;
 289 }
 290
 291 static NTSTATUS get_modem_status(int fd, DWORD* lpModemStat)
 292 {
 293     NTSTATUS    status = STATUS_NOT_SUPPORTED;
 294     int         mstat;
 295
 296     *lpModemStat = 0;
 297 #ifdef TIOCMGET
 298     if (!ioctl(fd, TIOCMGET, &mstat))
 299     {
 300 #ifdef TIOCM_CTS
 301         if (mstat & TIOCM_CTS)  *lpModemStat |= MS_CTS_ON;
 302 #endif
 303 #ifdef TIOCM_DSR
 304         if (mstat & TIOCM_DSR)  *lpModemStat |= MS_DSR_ON;
 305 #endif
 306 #ifdef TIOCM_RNG
 307         if (mstat & TIOCM_RNG)  *lpModemStat |= MS_RING_ON;
 308 #endif
 309 #ifdef TIOCM_CAR
 310         /* FIXME: Not really sure about RLSD UB 990810 */
 311         if (mstat & TIOCM_CAR)  *lpModemStat |= MS_RLSD_ON;
 312 #endif
 313         TRACE("%04x -> %s%s%s%s\n", mstat,
 314               (*lpModemStat & MS_RLSD_ON) ? "MS_RLSD_ON " : "",
 315               (*lpModemStat & MS_RING_ON) ? "MS_RING_ON " : "",
 316               (*lpModemStat & MS_DSR_ON)  ? "MS_DSR_ON  " : "",
 317               (*lpModemStat & MS_CTS_ON)  ? "MS_CTS_ON  " : "");
 318         return STATUS_SUCCESS;
 319     }
 320     WARN("ioctl failed\n");
 321     status = FILE_GetNtStatus();
 322 #endif
 323     return status;
 324 }
 325
 326 static NTSTATUS get_special_chars(int fd, SERIAL_CHARS* sc)
 327 {
 328     struct termios port;
 329
 330     if (tcgetattr(fd, &port) == -1)
 331     {
 332         ERR("tcgetattr error '%s'\n", strerror(errno));
 333         return FILE_GetNtStatus();
 334     }
 335     sc->EofChar   = port.c_cc[VEOF];
 336     sc->ErrorChar = 0xFF;
 337     sc->BreakChar = 0; /* FIXME */
 338     sc->EventChar = 0; /* FIXME */
 339     sc->XonChar   = port.c_cc[VSTART];
 340     sc->XoffChar  = port.c_cc[VSTOP];
 341
 342     return STATUS_SUCCESS;
 343 }
 344
 345 static NTSTATUS get_status(int fd, SERIAL_STATUS* ss)
 346 {
 347     NTSTATUS    status = STATUS_SUCCESS;
 348
 349     ss->Errors = 0;
 350     ss->HoldReasons = 0;
 351     ss->EofReceived = FALSE;
 352     ss->WaitForImmediate = FALSE;
 353 #ifdef TIOCOUTQ
 354     if (ioctl(fd, TIOCOUTQ, &ss->AmountInOutQueue) == -1)
 355     {
 356         WARN("ioctl returned error\n");
 357         status = FILE_GetNtStatus();
 358     }
 359 #else
 360     ss->AmountInOutQueue = 0; /* FIXME: find a different way to find out */
 361 #endif
 362
 363 #ifdef TIOCINQ
 364     if (ioctl(fd, TIOCINQ, &ss->AmountInInQueue))
 365     {
 366         WARN("ioctl returned error\n");
 367         status = FILE_GetNtStatus();
 368     }
 369 #else
 370     ss->AmountInInQueue = 0; /* FIXME: find a different way to find out */
 371 #endif
 372     return status;
 373 }
 374
 375 static NTSTATUS get_timeouts(HANDLE handle, SERIAL_TIMEOUTS* st)
 376 {
 377     NTSTATUS    status;
 378     SERVER_START_REQ( get_serial_info )
 379     {
 380         req->handle = wine_server_obj_handle( handle );
 381         if (!(status = wine_server_call( req )))
 382         {
 383             st->ReadIntervalTimeout         = reply->readinterval;
 384             st->ReadTotalTimeoutMultiplier  = reply->readmult;
 385             st->ReadTotalTimeoutConstant    = reply->readconst;
 386             st->WriteTotalTimeoutMultiplier = reply->writemult;
 387             st->WriteTotalTimeoutConstant   = reply->writeconst;
 388         }
 389     }
 390     SERVER_END_REQ;
 391     return status;
 392 }
 393
 394 static NTSTATUS get_wait_mask(HANDLE hDevice, DWORD* mask)
 395 {
 396     NTSTATUS    status;
 397
 398     SERVER_START_REQ( get_serial_info )
 399     {
 400         req->handle = wine_server_obj_handle( hDevice );
 401         if (!(status = wine_server_call( req )))
 402             *mask = reply->eventmask;
 403     }
 404     SERVER_END_REQ;
 405     return status;
 406 }
 407
 408 static NTSTATUS purge(int fd, DWORD flags)
 409 {
 410     /*
 411     ** not exactly sure how these are different
 412     ** Perhaps if we had our own internal queues, one flushes them
 413     ** and the other flushes the kernel's buffers.
 414     */
 415     if (flags & PURGE_TXABORT) tcflush(fd, TCOFLUSH);
 416     if (flags & PURGE_RXABORT) tcflush(fd, TCIFLUSH);
 417     if (flags & PURGE_TXCLEAR) tcflush(fd, TCOFLUSH);
 418     if (flags & PURGE_RXCLEAR) tcflush(fd, TCIFLUSH);
 419     return STATUS_SUCCESS;
 420 }
 421
 422 static NTSTATUS set_baud_rate(int fd, const SERIAL_BAUD_RATE* sbr)
 423 {
 424     struct termios port;
 425
 426     if (tcgetattr(fd, &port) == -1)
 427     {
 428         ERR("tcgetattr error '%s'\n", strerror(errno));
 429         return FILE_GetNtStatus();
 430     }
 431
 432 #ifdef CBAUD
 433     port.c_cflag &= ~CBAUD;
 434     switch (sbr->BaudRate)
 435     {
 436     case 0:             port.c_cflag |= B0;     break;
 437     case 50:            port.c_cflag |= B50;    break;
 438     case 75:            port.c_cflag |= B75;    break;
 439     case 110:
 440     case CBR_110:       port.c_cflag |= B110;   break;
 441     case 134:           port.c_cflag |= B134;   break;
 442     case 150:           port.c_cflag |= B150;   break;
 443     case 200:           port.c_cflag |= B200;   break;
 444     case 300:
 445     case CBR_300:       port.c_cflag |= B300;   break;
 446     case 600:
 447     case CBR_600:       port.c_cflag |= B600;   break;
 448     case 1200:
 449     case CBR_1200:      port.c_cflag |= B1200;  break;
 450     case 1800:          port.c_cflag |= B1800;  break;
 451     case 2400:
 452     case CBR_2400:      port.c_cflag |= B2400;  break;
 453     case 4800:
 454     case CBR_4800:      port.c_cflag |= B4800;  break;
 455     case 9600:
 456     case CBR_9600:      port.c_cflag |= B9600;  break;
 457     case 19200:
 458     case CBR_19200:     port.c_cflag |= B19200; break;
 459     case 38400:
 460     case CBR_38400:     port.c_cflag |= B38400; break;
 461 #ifdef B57600
 462     case 57600:         port.c_cflag |= B57600; break;
 463 #endif
 464 #ifdef B115200
 465     case 115200:        port.c_cflag |= B115200;break;
 466 #endif
 467 #ifdef B230400
 468     case 230400:        port.c_cflag |= B230400;break;
 469 #endif
 470 #ifdef B460800
 471     case 460800:        port.c_cflag |= B460800;break;
 472 #endif
 473     default:
 474 #if defined (HAVE_LINUX_SERIAL_H) && defined (TIOCSSERIAL)
 475         {
 476             struct serial_struct nuts;
 477             int arby;
 478
 479             ioctl(fd, TIOCGSERIAL, &nuts);
 480             nuts.custom_divisor = nuts.baud_base / sbr->BaudRate;
 481             if (!(nuts.custom_divisor)) nuts.custom_divisor = 1;
 482             arby = nuts.baud_base / nuts.custom_divisor;
 483             nuts.flags &= ~ASYNC_SPD_MASK;
 484             nuts.flags |= ASYNC_SPD_CUST;
 485             WARN("You (or a program acting at your behest) have specified\n"
 486                  "a non-standard baud rate %d.  Wine will set the rate to %d,\n"
 487                  "which is as close as we can get by our present understanding of your\n"
 488                  "hardware. I hope you know what you are doing.  Any disruption Wine\n"
 489                  "has caused to your linux system can be undone with setserial\n"
 490                  "(see man setserial). If you have incapacitated a Hayes type modem,\n"
 491                  "reset it and it will probably recover.\n", sbr->BaudRate, arby);
 492             ioctl(fd, TIOCSSERIAL, &nuts);
 493             port.c_cflag |= B38400;
 494         }
 495         break;
 496 #else     /* Don't have linux/serial.h or lack TIOCSSERIAL */
 497         ERR("baudrate %d\n", sbr->BaudRate);
 498         return STATUS_NOT_SUPPORTED;
 499 #endif    /* Don't have linux/serial.h or lack TIOCSSERIAL */
 500     }
 501 #elif !defined(__EMX__)
 502     switch (sbr->BaudRate)
 503     {
 504     case 0:             port.c_ospeed = B0;     break;
 505     case 50:            port.c_ospeed = B50;    break;
 506     case 75:            port.c_ospeed = B75;    break;
 507     case 110:
 508     case CBR_110:       port.c_ospeed = B110;   break;
 509     case 134:           port.c_ospeed = B134;   break;
 510     case 150:           port.c_ospeed = B150;   break;
 511     case 200:           port.c_ospeed = B200;   break;
 512     case 300:
 513     case CBR_300:       port.c_ospeed = B300;   break;
 514     case 600:
 515     case CBR_600:       port.c_ospeed = B600;   break;
 516     case 1200:
 517     case CBR_1200:      port.c_ospeed = B1200;  break;
 518     case 1800:          port.c_ospeed = B1800;  break;
 519     case 2400:
 520     case CBR_2400:      port.c_ospeed = B2400;  break;
 521     case 4800:
 522     case CBR_4800:      port.c_ospeed = B4800;  break;
 523     case 9600:
 524     case CBR_9600:      port.c_ospeed = B9600;  break;
 525     case 19200:
 526     case CBR_19200:     port.c_ospeed = B19200; break;
 527     case 38400:
 528     case CBR_38400:     port.c_ospeed = B38400; break;
 529 #ifdef B57600
 530     case 57600:
 531     case CBR_57600:     port.c_cflag |= B57600; break;
 532 #endif
 533 #ifdef B115200
 534     case 115200:
 535     case CBR_115200:    port.c_cflag |= B115200;break;
 536 #endif
 537 #ifdef B230400
 538     case 230400:        port.c_cflag |= B230400;break;
 539 #endif
 540 #ifdef B460800
 541     case 460800:        port.c_cflag |= B460800;break;
 542 #endif
 543     default:
 544         ERR("baudrate %d\n", sbr->BaudRate);
 545         return STATUS_NOT_SUPPORTED;
 546     }
 547     port.c_ispeed = port.c_ospeed;
 548 #endif
 549     if (tcsetattr(fd, TCSANOW, &port) == -1)
 550     {
 551         ERR("tcsetattr error '%s'\n", strerror(errno));
 552         return FILE_GetNtStatus();
 553     }
 554     return STATUS_SUCCESS;
 555 }
 556
 557 static int whack_modem(int fd, unsigned int andy, unsigned int orrie)
 558 {
 559 #ifdef TIOCMGET
 560     unsigned int mstat, okay;
 561     okay = ioctl(fd, TIOCMGET, &mstat);
 562     if (okay) return okay;
 563     if (andy) mstat &= andy;
 564     mstat |= orrie;
 565     return ioctl(fd, TIOCMSET, &mstat);
 566 #else
 567     return 0;
 568 #endif
 569 }
 570
 571 static NTSTATUS set_handflow(int fd, const SERIAL_HANDFLOW* shf)
 572 {
 573     struct termios port;
 574
 575     if ((shf->FlowReplace & (SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE)) ==
 576         (SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE))
 577         return STATUS_NOT_SUPPORTED;
 578
 579     if (tcgetattr(fd, &port) == -1)
 580     {
 581         ERR("tcgetattr error '%s'\n", strerror(errno));
 582         return FILE_GetNtStatus();
 583     }
 584
 585 #ifdef CRTSCTS
 586     if ((shf->ControlHandShake & SERIAL_CTS_HANDSHAKE) ||
 587         (shf->FlowReplace & SERIAL_RTS_HANDSHAKE))
 588     {
 589         port.c_cflag |= CRTSCTS;
 590         TRACE("CRTSCTS\n");
 591     }
 592     else
 593         port.c_cflag &= ~CRTSCTS;
 594 #endif
 595 #ifdef TIOCM_DTR
 596     if (shf->ControlHandShake & SERIAL_DTR_HANDSHAKE)
 597     {
 598         WARN("DSR/DTR flow control not supported\n");
 599     } else if (!(shf->ControlHandShake & SERIAL_DTR_CONTROL))
 600         whack_modem(fd, ~TIOCM_DTR, 0);
 601     else
 602         whack_modem(fd, 0, TIOCM_DTR);
 603 #endif
 604 #ifdef TIOCM_RTS
 605     if (!(shf->ControlHandShake & SERIAL_CTS_HANDSHAKE))
 606     {
 607         if ((shf->FlowReplace & (SERIAL_RTS_CONTROL|SERIAL_RTS_HANDSHAKE)) == 0)
 608             whack_modem(fd, ~TIOCM_RTS, 0);
 609         else
 610             whack_modem(fd, 0, TIOCM_RTS);
 611     }
 612 #endif
 613
 614     if (shf->FlowReplace & SERIAL_AUTO_RECEIVE)
 615         port.c_iflag |= IXOFF;
 616     else
 617         port.c_iflag &= ~IXOFF;
 618     if (shf->FlowReplace & SERIAL_AUTO_TRANSMIT)
 619         port.c_iflag |= IXON;
 620     else
 621         port.c_iflag &= ~IXON;
 622     if (tcsetattr(fd, TCSANOW, &port) == -1)
 623     {
 624         ERR("tcsetattr error '%s'\n", strerror(errno));
 625         return FILE_GetNtStatus();
 626     }
 627
 628     return STATUS_SUCCESS;
 629 }
 630
 631 static NTSTATUS set_line_control(int fd, const SERIAL_LINE_CONTROL* slc)
 632 {
 633     struct termios port;
 634     unsigned bytesize, stopbits;
 635
 636     if (tcgetattr(fd, &port) == -1)
 637     {
 638         ERR("tcgetattr error '%s'\n", strerror(errno));
 639         return FILE_GetNtStatus();
 640     }
 641
 642 #ifdef IMAXBEL
 643     port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR|PARMRK|IMAXBEL);
 644 #else
 645     port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR|PARMRK);
 646 #endif
 647     port.c_iflag |= IGNBRK | INPCK;
 648
 649     port.c_oflag &= ~(OPOST);
 650
 651     port.c_cflag &= ~(HUPCL);
 652     port.c_cflag |= CLOCAL | CREAD;
 653
 654     /*
 655      * on FreeBSD, turning off ICANON does not disable IEXTEN,
 656      * so we must turn it off explicitly. No harm done on Linux.
 657      */
 658     port.c_lflag &= ~(ICANON|ECHO|ISIG|IEXTEN);
 659     port.c_lflag |= NOFLSH;
 660
 661     bytesize = slc->WordLength;
 662     stopbits = slc->StopBits;
 663
 664 #ifdef CMSPAR
 665     port.c_cflag &= ~(PARENB | PARODD | CMSPAR);
 666 #else
 667     port.c_cflag &= ~(PARENB | PARODD);
 668 #endif
 669
 670     /* make sure that reads don't block */
 671     port.c_cc[VMIN] = 0;
 672     port.c_cc[VTIME] = 0;
 673
 674     switch (slc->Parity)
 675     {
 676     case NOPARITY:      port.c_iflag &= ~INPCK;                         break;
 677     case ODDPARITY:     port.c_cflag |= PARENB | PARODD;                break;
 678     case EVENPARITY:    port.c_cflag |= PARENB;                         break;
 679 #ifdef CMSPAR
 680         /* Linux defines mark/space (stick) parity */
 681     case MARKPARITY:    port.c_cflag |= PARENB | CMSPAR;                break;
 682     case SPACEPARITY:   port.c_cflag |= PARENB | PARODD |  CMSPAR;      break;
 683 #else
 684         /* try the POSIX way */
 685     case MARKPARITY:
 686         if (slc->StopBits == ONESTOPBIT)
 687         {
 688             stopbits = TWOSTOPBITS;
 689             port.c_iflag &= ~INPCK;
 690         }
 691         else
 692         {
 693             ERR("Cannot set MARK Parity\n");
 694             return STATUS_NOT_SUPPORTED;
 695         }
 696         break;
 697     case SPACEPARITY:
 698         if (slc->WordLength < 8)
 699         {
 700             bytesize +=1;
 701             port.c_iflag &= ~INPCK;
 702         }
 703         else
 704         {
 705             ERR("Cannot set SPACE Parity\n");
 706             return STATUS_NOT_SUPPORTED;
 707         }
 708         break;
 709 #endif
 710     default:
 711         ERR("Parity\n");
 712         return STATUS_NOT_SUPPORTED;
 713     }
 714
 715     port.c_cflag &= ~CSIZE;
 716     switch (bytesize)
 717     {
 718     case 5:     port.c_cflag |= CS5;    break;
 719     case 6:     port.c_cflag |= CS6;    break;
 720     case 7:     port.c_cflag |= CS7;    break;
 721     case 8:     port.c_cflag |= CS8;    break;
 722     default:
 723         ERR("ByteSize\n");
 724         return STATUS_NOT_SUPPORTED;
 725     }
 726
 727     switch (stopbits)
 728     {
 729     case ONESTOPBIT:    port.c_cflag &= ~CSTOPB;        break;
 730     case ONE5STOPBITS: /* will be selected if bytesize is 5 */
 731     case TWOSTOPBITS:   port.c_cflag |= CSTOPB;         break;
 732     default:
 733         ERR("StopBits\n");
 734         return STATUS_NOT_SUPPORTED;
 735     }
 736     /* otherwise it hangs with pending input*/
 737     if (tcsetattr(fd, TCSANOW, &port) == -1)
 738     {
 739         ERR("tcsetattr error '%s'\n", strerror(errno));
 740         return FILE_GetNtStatus();
 741     }
 742     return STATUS_SUCCESS;
 743 }
 744
 745 static NTSTATUS set_queue_size(int fd, const SERIAL_QUEUE_SIZE* sqs)
 746 {
 747     FIXME("insize %d outsize %d unimplemented stub\n", sqs->InSize, sqs->OutSize);
 748     return STATUS_SUCCESS;
 749 }
 750
 751 static NTSTATUS set_special_chars(int fd, const SERIAL_CHARS* sc)
 752 {
 753     struct termios port;
 754
 755     if (tcgetattr(fd, &port) == -1)
 756     {
 757         ERR("tcgetattr error '%s'\n", strerror(errno));
 758         return FILE_GetNtStatus();
 759     }
 760
 761     port.c_cc[VEOF  ] = sc->EofChar;
 762     /* FIXME: sc->ErrorChar is not supported */
 763     /* FIXME: sc->BreakChar is not supported */
 764     /* FIXME: sc->EventChar is not supported */
 765     port.c_cc[VSTART] = sc->XonChar;
 766     port.c_cc[VSTOP ] = sc->XoffChar;
 767
 768     if (tcsetattr(fd, TCSANOW, &port) == -1)
 769     {
 770         ERR("tcsetattr error '%s'\n", strerror(errno));
 771         return FILE_GetNtStatus();
 772     }
 773     return STATUS_SUCCESS;
 774 }
 775
 776 static NTSTATUS set_timeouts(HANDLE handle, const SERIAL_TIMEOUTS* st)
 777 {
 778     NTSTATUS            status;
 779
 780     SERVER_START_REQ( set_serial_info )
 781     {
 782         req->handle       = wine_server_obj_handle( handle );
 783         req->flags        = SERIALINFO_SET_TIMEOUTS;
 784         req->readinterval = st->ReadIntervalTimeout ;
 785         req->readmult     = st->ReadTotalTimeoutMultiplier ;
 786         req->readconst    = st->ReadTotalTimeoutConstant ;
 787         req->writemult    = st->WriteTotalTimeoutMultiplier ;
 788         req->writeconst   = st->WriteTotalTimeoutConstant ;
 789         status = wine_server_call( req );
 790     }
 791     SERVER_END_REQ;
 792     return status;
 793 }
 794
 795 static NTSTATUS set_wait_mask(HANDLE hDevice, DWORD mask)
 796 {
 797     NTSTATUS status;
 798
 799     SERVER_START_REQ( set_serial_info )
 800     {
 801         req->handle    = wine_server_obj_handle( hDevice );
 802         req->flags     = SERIALINFO_SET_MASK;
 803         req->eventmask = mask;
 804         status = wine_server_call( req );
 805     }
 806     SERVER_END_REQ;
 807     return status;
 808 }
 809
 810 /*
 811  * does not change IXOFF but simulates that IXOFF has been received:
 812  */
 813 static NTSTATUS set_XOff(int fd)
 814 {
 815     if (tcflow(fd, TCOOFF))
 816     {
 817         return FILE_GetNtStatus();
 818     }
 819     return STATUS_SUCCESS;
 820 }
 821
 822 /*
 823  * does not change IXON but simulates that IXON has been received:
 824  */
 825 static NTSTATUS set_XOn(int fd)
 826 {
 827     if (tcflow(fd, TCOON))
 828     {
 829         return FILE_GetNtStatus();
 830     }
 831     return STATUS_SUCCESS;
 832 }
 833
 834 /*             serial_irq_info
 835  * local structure holding the irq values we need for WaitCommEvent()
 836  *
 837  * Stripped down from struct serial_icounter_struct, which may not be available on some systems
 838  * As the modem line interrupts (cts, dsr, rng, dcd) only get updated with TIOCMIWAIT active,
 839  * no need to carry them in the internal structure
 840  *
 841  */
 842 typedef struct serial_irq_info
 843 {
 844     int rx , tx, frame, overrun, parity, brk, buf_overrun;
 845 }serial_irq_info;
 846
 847 /***********************************************************************
 848  * Data needed by the thread polling for the changing CommEvent
 849  */
 850 typedef struct async_commio
 851 {
 852     HANDLE              hDevice;
 853     DWORD*              events;
 854     HANDLE              hEvent;
 855     DWORD               evtmask;
 856     DWORD               mstat;
 857     serial_irq_info     irq_info;
 858 } async_commio;
 859
 860 /***********************************************************************
 861  *   Get extended interrupt count info, needed for wait_on
 862  */
 863 static NTSTATUS get_irq_info(int fd, serial_irq_info *irq_info)
 864 {
 865     NTSTATUS status = STATUS_NOT_IMPLEMENTED;
 866 #ifdef TIOCGICOUNT
 867     struct serial_icounter_struct einfo;
 868     if (!ioctl(fd, TIOCGICOUNT, &einfo))
 869     {
 870         irq_info->rx          = einfo.rx;
 871         irq_info->tx          = einfo.tx;
 872         irq_info->frame       = einfo.frame;
 873         irq_info->overrun     = einfo.overrun;
 874         irq_info->parity      = einfo.parity;
 875         irq_info->brk         = einfo.brk;
 876         irq_info->buf_overrun = einfo.buf_overrun;
 877         return STATUS_SUCCESS;
 878     }
 879     TRACE("TIOCGICOUNT err %s\n", strerror(errno));
 880     status = FILE_GetNtStatus();
 881 #endif
 882     memset(irq_info,0, sizeof(serial_irq_info));
 883     return status;
 884 }
 885
 886
 887 static DWORD check_events(int fd, DWORD mask,
 888                           const serial_irq_info *new,
 889                           const serial_irq_info *old,
 890                           DWORD new_mstat, DWORD old_mstat)
 891 {
 892     DWORD ret = 0, queue;
 893
 894     TRACE("mask 0x%08x\n", mask);
 895     TRACE("old->rx          0x%08x vs. new->rx          0x%08x\n", old->rx, new->rx);
 896     TRACE("old->tx          0x%08x vs. new->tx          0x%08x\n", old->tx, new->tx);
 897     TRACE("old->frame       0x%08x vs. new->frame       0x%08x\n", old->frame, new->frame);
 898     TRACE("old->overrun     0x%08x vs. new->overrun     0x%08x\n", old->overrun, new->overrun);
 899     TRACE("old->parity      0x%08x vs. new->parity      0x%08x\n", old->parity, new->parity);
 900     TRACE("old->brk         0x%08x vs. new->brk         0x%08x\n", old->brk, new->brk);
 901     TRACE("old->buf_overrun 0x%08x vs. new->buf_overrun 0x%08x\n", old->buf_overrun, new->buf_overrun);
 902
 903     if (old->brk != new->brk) ret |= EV_BREAK;
 904     if ((old_mstat & MS_CTS_ON ) != (new_mstat & MS_CTS_ON )) ret |= EV_CTS;
 905     if ((old_mstat & MS_DSR_ON ) != (new_mstat & MS_DSR_ON )) ret |= EV_DSR;
 906     if ((old_mstat & MS_RING_ON) != (new_mstat & MS_RING_ON)) ret |= EV_RING;
 907     if ((old_mstat & MS_RLSD_ON) != (new_mstat & MS_RLSD_ON)) ret |= EV_RLSD;
 908     if (old->frame != new->frame || old->overrun != new->overrun || old->parity != new->parity) ret |= EV_ERR;
 909     if (mask & EV_RXCHAR)
 910     {
 911         queue = 0;
 912 #ifdef TIOCINQ
 913         if (ioctl(fd, TIOCINQ, &queue))
 914             WARN("TIOCINQ returned error\n");
 915 #endif
 916         if (queue)
 917             ret |= EV_RXCHAR;
 918     }
 919     if (mask & EV_TXEMPTY)
 920     {
 921         queue = 0;
 922 /* We really want to know when all characters have gone out of the transmitter */
 923 #if defined(TIOCSERGETLSR)
 924         if (ioctl(fd, TIOCSERGETLSR, &queue))
 925             WARN("TIOCSERGETLSR returned error\n");
 926         if (queue)
 927 /* TIOCOUTQ only checks for an empty buffer */
 928 #elif defined(TIOCOUTQ)
 929         if (ioctl(fd, TIOCOUTQ, &queue))
 930             WARN("TIOCOUTQ returned error\n");
 931         if (!queue)
 932 #endif
 933            ret |= EV_TXEMPTY;
 934         TRACE("OUTQUEUE %d, Transmitter %sempty\n",
 935               queue, (ret & EV_TXEMPTY) ? "" : "not ");
 936     }
 937     return ret & mask;
 938 }
 939
 940 /***********************************************************************
 941  *             wait_for_event      (INTERNAL)
 942  *
 943  *  We need to poll for what is interesting
 944  *  TIOCMIWAIT only checks modem status line and may not be aborted by a changing mask
 945  *
 946  */
 947 static DWORD CALLBACK wait_for_event(LPVOID arg)
 948 {
 949     async_commio *commio = arg;
 950     int fd, needs_close;
 951
 952     if (!server_get_unix_fd( commio->hDevice, FILE_READ_DATA | FILE_WRITE_DATA, &fd, &needs_close, NULL, NULL ))
 953     {
 954         serial_irq_info new_irq_info;
 955         DWORD new_mstat, new_evtmask;
 956         LARGE_INTEGER time;
 957
 958         TRACE("device=%p fd=0x%08x mask=0x%08x buffer=%p event=%p irq_info=%p\n",
 959               commio->hDevice, fd, commio->evtmask, commio->events, commio->hEvent, &commio->irq_info);
 960
 961         time.QuadPart = (ULONGLONG)10000;
 962         time.QuadPart = -time.QuadPart;
 963         for (;;)
 964         {
 965             /*
 966              * TIOCMIWAIT is not adequate
 967              *
 968              * FIXME:
 969              * We don't handle the EV_RXFLAG (the eventchar)
 970              */
 971             NtDelayExecution(FALSE, &time);
 972             get_irq_info(fd, &new_irq_info);
 973             if (get_modem_status(fd, &new_mstat))
 974                 TRACE("get_modem_status failed\n");
 975             *commio->events = check_events(fd, commio->evtmask,
 976                                            &new_irq_info, &commio->irq_info,
 977                                            new_mstat, commio->mstat);
 978             if (*commio->events) break;
 979             get_wait_mask(commio->hDevice, &new_evtmask);
 980             if (commio->evtmask != new_evtmask)
 981             {
 982                 *commio->events = 0;
 983                 break;
 984             }
 985         }
 986         if (needs_close) close( fd );
 987     }
 988     if (commio->hEvent) NtSetEvent(commio->hEvent, NULL);
 989     RtlFreeHeap(GetProcessHeap(), 0, commio);
 990     return 0;
 991 }
 992
 993 static NTSTATUS wait_on(HANDLE hDevice, int fd, HANDLE hEvent, DWORD* events)
 994 {
 995     async_commio*       commio;
 996     NTSTATUS            status;
 997
 998     if ((status = NtResetEvent(hEvent, NULL)))
 999         return status;
1000
1001     commio = RtlAllocateHeap(GetProcessHeap(), 0, sizeof (async_commio));
1002     if (!commio) return STATUS_NO_MEMORY;
1003
1004     commio->hDevice = hDevice;
1005     commio->events  = events;
1006     commio->hEvent  = hEvent;
1007     get_wait_mask(commio->hDevice, &commio->evtmask);
1008
1009 /* We may never return, if some capabilities miss
1010  * Return error in that case
1011  */
1012 #if !defined(TIOCINQ)
1013     if (commio->evtmask & EV_RXCHAR)
1014         goto error_caps;
1015 #endif
1016 #if !(defined(TIOCSERGETLSR) && defined(TIOCSER_TEMT)) || !defined(TIOCINQ)
1017     if (commio->evtmask & EV_TXEMPTY)
1018         goto error_caps;
1019 #endif
1020 #if !defined(TIOCMGET)
1021     if (commio->evtmask & (EV_CTS | EV_DSR| EV_RING| EV_RLSD))
1022         goto error_caps;
1023 #endif
1024 #if !defined(TIOCM_CTS)
1025     if (commio->evtmask & EV_CTS)
1026         goto error_caps;
1027 #endif
1028 #if !defined(TIOCM_DSR)
1029     if (commio->evtmask & EV_DSR)
1030         goto error_caps;
1031 #endif
1032 #if !defined(TIOCM_RNG)
1033     if (commio->evtmask & EV_RING)
1034         goto error_caps;
1035 #endif
1036 #if !defined(TIOCM_CAR)
1037     if (commio->evtmask & EV_RLSD)
1038         goto error_caps;
1039 #endif
1040     if (commio->evtmask & EV_RXFLAG)
1041         FIXME("EV_RXFLAG not handled\n");
1042
1043     if ((status = get_irq_info(fd, &commio->irq_info)) &&
1044         (commio->evtmask & (EV_BREAK | EV_ERR)))
1045         goto out_now;
1046
1047     if ((status = get_modem_status(fd, &commio->mstat)) &&
1048         (commio->evtmask & (EV_CTS | EV_DSR| EV_RING| EV_RLSD)))
1049         goto out_now;
1050
1051     /* We might have received something or the TX buffer is delivered */
1052     *events = check_events(fd, commio->evtmask,
1053                                &commio->irq_info, &commio->irq_info,
1054                                commio->mstat, commio->mstat);
1055     if (*events)
1056     {
1057         status = STATUS_SUCCESS;
1058         goto out_now;
1059     }
1060
1061     /* create the worker for the task */
1062     status = RtlQueueWorkItem(wait_for_event, commio, 0 /* FIXME */);
1063     if (status != STATUS_SUCCESS) goto out_now;
1064     return STATUS_PENDING;
1065
1066 #if !defined(TIOCINQ) || (!(defined(TIOCSERGETLSR) && defined(TIOCSER_TEMT)) || !defined(TIOCINQ)) || !defined(TIOCMGET) || !defined(TIOCM_CTS) ||!defined(TIOCM_DSR) || !defined(TIOCM_RNG) || !defined(TIOCM_CAR)
1067 error_caps:
1068     FIXME("Returning error because of missing capabilities\n");
1069     status = STATUS_INVALID_PARAMETER;
1070 #endif
1071 out_now:
1072     RtlFreeHeap(GetProcessHeap(), 0, commio);
1073     return status;
1074 }
1075
1076 static NTSTATUS xmit_immediate(HANDLE hDevice, int fd, const char* ptr)
1077 {
1078     /* FIXME: not perfect as it should bypass the in-queue */
1079     WARN("(%p,'%c') not perfect!\n", hDevice, *ptr);
1080     if (write(fd, ptr, 1) != 1)
1081         return FILE_GetNtStatus();
1082     return STATUS_SUCCESS;
1083 }
1084
1085 /******************************************************************
1086  *              COMM_DeviceIoControl
1087  *
1088  *
1089  */
1090 static inline NTSTATUS io_control(HANDLE hDevice,
1091                                   HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
1092                                   PVOID UserApcContext,
1093                                   PIO_STATUS_BLOCK piosb,
1094                                   ULONG dwIoControlCode,
1095                                   LPVOID lpInBuffer, DWORD nInBufferSize,
1096                                   LPVOID lpOutBuffer, DWORD nOutBufferSize)
1097 {
1098     DWORD       sz = 0, access = FILE_READ_DATA;
1099     NTSTATUS    status = STATUS_SUCCESS;
1100     int         fd = -1, needs_close = 0;
1101
1102     TRACE("%p %s %p %d %p %d %p\n",
1103           hDevice, iocode2str(dwIoControlCode), lpInBuffer, nInBufferSize,
1104           lpOutBuffer, nOutBufferSize, piosb);
1105
1106     piosb->Information = 0;
1107
1108     if (dwIoControlCode != IOCTL_SERIAL_GET_TIMEOUTS &&
1109         dwIoControlCode != IOCTL_SERIAL_SET_TIMEOUTS)
1110         if ((status = server_get_unix_fd( hDevice, access, &fd, &needs_close, NULL, NULL )))
1111             goto error;
1112
1113     switch (dwIoControlCode)
1114     {
1115     case IOCTL_SERIAL_CLR_DTR:
1116 #ifdef TIOCM_DTR
1117         if (whack_modem(fd, ~TIOCM_DTR, 0) == -1) status = FILE_GetNtStatus();
1118 #else
1119         status = STATUS_NOT_SUPPORTED;
1120 #endif
1121         break;
1122     case IOCTL_SERIAL_CLR_RTS:
1123 #ifdef TIOCM_RTS
1124         if (whack_modem(fd, ~TIOCM_RTS, 0) == -1) status = FILE_GetNtStatus();
1125 #else
1126         status = STATUS_NOT_SUPPORTED;
1127 #endif
1128         break;
1129     case IOCTL_SERIAL_GET_BAUD_RATE:
1130         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_BAUD_RATE))
1131         {
1132             if (!(status = get_baud_rate(fd, lpOutBuffer)))
1133                 sz = sizeof(SERIAL_BAUD_RATE);
1134         }
1135         else
1136             status = STATUS_INVALID_PARAMETER;
1137         break;
1138     case IOCTL_SERIAL_GET_CHARS:
1139         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_CHARS))
1140         {
1141             if (!(status = get_special_chars(fd, lpOutBuffer)))
1142                 sz = sizeof(SERIAL_CHARS);
1143         }
1144         else
1145             status = STATUS_INVALID_PARAMETER;
1146         break;
1147      case IOCTL_SERIAL_GET_COMMSTATUS:
1148         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_STATUS))
1149         {
1150             if (!(status = get_status(fd, lpOutBuffer)))
1151                 sz = sizeof(SERIAL_STATUS);
1152         }
1153         else status = STATUS_INVALID_PARAMETER;
1154         break;
1155     case IOCTL_SERIAL_GET_HANDFLOW:
1156         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_HANDFLOW))
1157         {
1158             if (!(status = get_hand_flow(fd, lpOutBuffer)))
1159                 sz = sizeof(SERIAL_HANDFLOW);
1160         }
1161         else
1162             status = STATUS_INVALID_PARAMETER;
1163         break;
1164     case IOCTL_SERIAL_GET_LINE_CONTROL:
1165         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_LINE_CONTROL))
1166         {
1167             if (!(status = get_line_control(fd, lpOutBuffer)))
1168                 sz = sizeof(SERIAL_LINE_CONTROL);
1169         }
1170         else
1171             status = STATUS_INVALID_PARAMETER;
1172         break;
1173     case IOCTL_SERIAL_GET_MODEMSTATUS:
1174         if (lpOutBuffer && nOutBufferSize == sizeof(DWORD))
1175         {
1176             if (!(status = get_modem_status(fd, lpOutBuffer)))
1177                 sz = sizeof(DWORD);
1178         }
1179         else status = STATUS_INVALID_PARAMETER;
1180         break;
1181     case IOCTL_SERIAL_GET_TIMEOUTS:
1182         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_TIMEOUTS))
1183         {
1184             if (!(status = get_timeouts(hDevice, lpOutBuffer)))
1185                 sz = sizeof(SERIAL_TIMEOUTS);
1186         }
1187         else
1188             status = STATUS_INVALID_PARAMETER;
1189         break;
1190     case IOCTL_SERIAL_GET_WAIT_MASK:
1191         if (lpOutBuffer && nOutBufferSize == sizeof(DWORD))
1192         {
1193             if (!(status = get_wait_mask(hDevice, lpOutBuffer)))
1194                 sz = sizeof(DWORD);
1195         }
1196         else
1197             status = STATUS_INVALID_PARAMETER;
1198         break;
1199     case IOCTL_SERIAL_IMMEDIATE_CHAR:
1200         if (lpInBuffer && nInBufferSize == sizeof(CHAR))
1201             status = xmit_immediate(hDevice, fd, lpInBuffer);
1202         else
1203             status = STATUS_INVALID_PARAMETER;
1204         break;
1205     case IOCTL_SERIAL_PURGE:
1206         if (lpInBuffer && nInBufferSize == sizeof(DWORD))
1207             status = purge(fd, *(DWORD*)lpInBuffer);
1208         else
1209             status = STATUS_INVALID_PARAMETER;
1210         break;
1211     case IOCTL_SERIAL_RESET_DEVICE:
1212         FIXME("Unsupported\n");
1213         break;
1214     case IOCTL_SERIAL_SET_BAUD_RATE:
1215         if (lpInBuffer && nInBufferSize == sizeof(SERIAL_BAUD_RATE))
1216             status = set_baud_rate(fd, lpInBuffer);
1217         else
1218             status = STATUS_INVALID_PARAMETER;
1219         break;
1220     case IOCTL_SERIAL_SET_BREAK_OFF:
1221 #if defined(TIOCSBRK) && defined(TIOCCBRK) /* check if available for compilation */
1222         if (ioctl(fd, TIOCCBRK, 0) == -1)
1223         {
1224             TRACE("ioctl failed\n");
1225             status = FILE_GetNtStatus();
1226         }
1227 #else
1228         FIXME("ioctl not available\n");
1229         status = STATUS_NOT_SUPPORTED;
1230 #endif
1231         break;
1232     case IOCTL_SERIAL_SET_BREAK_ON:
1233 #if defined(TIOCSBRK) && defined(TIOCCBRK) /* check if available for compilation */
1234         if (ioctl(fd, TIOCSBRK, 0) == -1)
1235         {
1236             TRACE("ioctl failed\n");
1237             status = FILE_GetNtStatus();
1238         }
1239 #else
1240         FIXME("ioctl not available\n");
1241         status = STATUS_NOT_SUPPORTED;
1242 #endif
1243         break;
1244     case IOCTL_SERIAL_SET_CHARS:
1245         if (lpInBuffer && nInBufferSize == sizeof(SERIAL_CHARS))
1246             status = set_special_chars(fd, lpInBuffer);
1247         else
1248             status = STATUS_INVALID_PARAMETER;
1249         break;
1250     case IOCTL_SERIAL_SET_DTR:
1251 #ifdef TIOCM_DTR
1252         if (whack_modem(fd, 0, TIOCM_DTR) == -1) status = FILE_GetNtStatus();
1253 #else
1254         status = STATUS_NOT_SUPPORTED;
1255 #endif
1256         break;
1257     case IOCTL_SERIAL_SET_HANDFLOW:
1258         if (lpInBuffer && nInBufferSize == sizeof(SERIAL_HANDFLOW))
1259             status = set_handflow(fd, lpInBuffer);
1260         else
1261             status = STATUS_INVALID_PARAMETER;
1262         break;
1263     case IOCTL_SERIAL_SET_LINE_CONTROL:
1264         if (lpInBuffer && nInBufferSize == sizeof(SERIAL_LINE_CONTROL))
1265             status = set_line_control(fd, lpInBuffer);
1266         else
1267             status = STATUS_INVALID_PARAMETER;
1268         break;
1269     case IOCTL_SERIAL_SET_QUEUE_SIZE:
1270         if (lpInBuffer && nInBufferSize == sizeof(SERIAL_QUEUE_SIZE))
1271             status = set_queue_size(fd, lpInBuffer);
1272         else
1273             status = STATUS_INVALID_PARAMETER;
1274         break;
1275     case IOCTL_SERIAL_SET_RTS:
1276 #ifdef TIOCM_RTS
1277         if (whack_modem(fd, 0, TIOCM_RTS) == -1) status = FILE_GetNtStatus();
1278 #else
1279         status = STATUS_NOT_SUPPORTED;
1280 #endif
1281         break;
1282     case IOCTL_SERIAL_SET_TIMEOUTS:
1283         if (lpInBuffer && nInBufferSize == sizeof(SERIAL_TIMEOUTS))
1284             status = set_timeouts(hDevice, lpInBuffer);
1285         else
1286             status = STATUS_INVALID_PARAMETER;
1287         break;
1288     case IOCTL_SERIAL_SET_WAIT_MASK:
1289         if (lpInBuffer && nInBufferSize == sizeof(DWORD))
1290         {
1291             status = set_wait_mask(hDevice, *(DWORD*)lpInBuffer);
1292         }
1293         else status = STATUS_INVALID_PARAMETER;
1294         break;
1295     case IOCTL_SERIAL_SET_XOFF:
1296         status = set_XOff(fd);
1297         break;
1298     case IOCTL_SERIAL_SET_XON:
1299         status = set_XOn(fd);
1300         break;
1301     case IOCTL_SERIAL_WAIT_ON_MASK:
1302         if (lpOutBuffer && nOutBufferSize == sizeof(DWORD))
1303         {
1304             if (!(status = wait_on(hDevice, fd, hEvent, lpOutBuffer)))
1305                 sz = sizeof(DWORD);
1306         }
1307         else
1308             status = STATUS_INVALID_PARAMETER;
1309         break;
1310     default:
1311         FIXME("Unsupported IOCTL %x (type=%x access=%x func=%x meth=%x)\n",
1312               dwIoControlCode, dwIoControlCode >> 16, (dwIoControlCode >> 14) & 3,
1313               (dwIoControlCode >> 2) & 0xFFF, dwIoControlCode & 3);
1314         sz = 0;
1315         status = STATUS_INVALID_PARAMETER;
1316         break;
1317     }
1318     if (needs_close) close( fd );
1319  error:
1320     piosb->u.Status = status;
1321     piosb->Information = sz;
1322     if (hEvent && status != STATUS_PENDING) NtSetEvent(hEvent, NULL);
1323     return status;
1324 }
1325
1326 NTSTATUS COMM_DeviceIoControl(HANDLE hDevice,
1327                               HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
1328                               PVOID UserApcContext,
1329                               PIO_STATUS_BLOCK piosb,
1330                               ULONG dwIoControlCode,
1331                               LPVOID lpInBuffer, DWORD nInBufferSize,
1332                               LPVOID lpOutBuffer, DWORD nOutBufferSize)
1333 {
1334     NTSTATUS    status;
1335
1336     if (dwIoControlCode == IOCTL_SERIAL_WAIT_ON_MASK)
1337     {
1338         HANDLE          hev = hEvent;
1339
1340         /* this is an ioctl we implement in a non blocking way if hEvent is not
1341          * null
1342          * so we have to explicitly wait if no hEvent is provided
1343          */
1344         if (!hev)
1345         {
1346             OBJECT_ATTRIBUTES   attr;
1347
1348             attr.Length                   = sizeof(attr);
1349             attr.RootDirectory            = 0;
1350             attr.ObjectName               = NULL;
1351             attr.Attributes               = OBJ_CASE_INSENSITIVE | OBJ_OPENIF;
1352             attr.SecurityDescriptor       = NULL;
1353             attr.SecurityQualityOfService = NULL;
1354             status = NtCreateEvent(&hev, EVENT_ALL_ACCESS, &attr, FALSE, FALSE);
1355
1356             if (status) goto done;
1357         }
1358         status = io_control(hDevice, hev, UserApcRoutine, UserApcContext,
1359                             piosb, dwIoControlCode, lpInBuffer, nInBufferSize,
1360                             lpOutBuffer, nOutBufferSize);
1361         if (hev != hEvent)
1362         {
1363             if (status == STATUS_PENDING)
1364             {
1365                 NtWaitForSingleObject(hev, FALSE, NULL);
1366                 status = STATUS_SUCCESS;
1367             }
1368             NtClose(hev);
1369         }
1370     }
1371     else status = io_control(hDevice, hEvent, UserApcRoutine, UserApcContext,
1372                              piosb, dwIoControlCode, lpInBuffer, nInBufferSize,
1373                              lpOutBuffer, nOutBufferSize);
1374 done:
1375     return status;
1376 }