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