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 #include "ntstatus.h"
  61 #define WIN32_NO_STATUS
  62 #define NONAMELESSUNION
  63 #include "windef.h"
  64 #include "winternl.h"
  65 #include "winioctl.h"
  66 #include "ddk/ntddser.h"
  67 #include "ntdll_misc.h"
  68 #include "wine/server.h"
  69 #include "wine/library.h"
  70 #include "wine/debug.h"
  71
  72 #ifdef HAVE_LINUX_SERIAL_H
  73 #ifdef HAVE_ASM_TYPES_H
  74 #include <asm/types.h>
  75 #endif
  76 #include <linux/serial.h>
  77 #endif
  78
  79 #if !defined(TIOCINQ) && defined(FIONREAD)
  80 #define TIOCINQ FIONREAD
  81 #endif
  82
  83 WINE_DEFAULT_DEBUG_CHANNEL(comm);
  84
  85 static const char* iocode2str(DWORD ioc)
  86 {
  87     switch (ioc)
  88     {
  89 #define X(x)    case (x): return #x
  90         X(IOCTL_SERIAL_CLEAR_STATS);
  91         X(IOCTL_SERIAL_CLR_DTR);
  92         X(IOCTL_SERIAL_CLR_RTS);
  93         X(IOCTL_SERIAL_CONFIG_SIZE);
  94         X(IOCTL_SERIAL_GET_BAUD_RATE);
  95         X(IOCTL_SERIAL_GET_CHARS);
  96         X(IOCTL_SERIAL_GET_COMMSTATUS);
  97         X(IOCTL_SERIAL_GET_DTRRTS);
  98         X(IOCTL_SERIAL_GET_HANDFLOW);
  99         X(IOCTL_SERIAL_GET_LINE_CONTROL);
 100         X(IOCTL_SERIAL_GET_MODEM_CONTROL);
 101         X(IOCTL_SERIAL_GET_MODEMSTATUS);
 102         X(IOCTL_SERIAL_GET_PROPERTIES);
 103         X(IOCTL_SERIAL_GET_STATS);
 104         X(IOCTL_SERIAL_GET_TIMEOUTS);
 105         X(IOCTL_SERIAL_GET_WAIT_MASK);
 106         X(IOCTL_SERIAL_IMMEDIATE_CHAR);
 107         X(IOCTL_SERIAL_LSRMST_INSERT);
 108         X(IOCTL_SERIAL_PURGE);
 109         X(IOCTL_SERIAL_RESET_DEVICE);
 110         X(IOCTL_SERIAL_SET_BAUD_RATE);
 111         X(IOCTL_SERIAL_SET_BREAK_ON);
 112         X(IOCTL_SERIAL_SET_BREAK_OFF);
 113         X(IOCTL_SERIAL_SET_CHARS);
 114         X(IOCTL_SERIAL_SET_DTR);
 115         X(IOCTL_SERIAL_SET_FIFO_CONTROL);
 116         X(IOCTL_SERIAL_SET_HANDFLOW);
 117         X(IOCTL_SERIAL_SET_LINE_CONTROL);
 118         X(IOCTL_SERIAL_SET_MODEM_CONTROL);
 119         X(IOCTL_SERIAL_SET_QUEUE_SIZE);
 120         X(IOCTL_SERIAL_SET_RTS);
 121         X(IOCTL_SERIAL_SET_TIMEOUTS);
 122         X(IOCTL_SERIAL_SET_WAIT_MASK);
 123         X(IOCTL_SERIAL_SET_XOFF);
 124         X(IOCTL_SERIAL_SET_XON);
 125         X(IOCTL_SERIAL_WAIT_ON_MASK);
 126         X(IOCTL_SERIAL_XOFF_COUNTER);
 127 #undef X
 128     default: { static char tmp[32]; sprintf(tmp, "IOCTL_SERIAL_%d\n", ioc); return tmp; }
 129     }
 130 }
 131
 132 static NTSTATUS get_baud_rate(int fd, SERIAL_BAUD_RATE* sbr)
 133 {
 134     struct termios port;
 135     int speed;
 136
 137     if (tcgetattr(fd, &port) == -1)
 138     {
 139         ERR("tcgetattr error '%s'\n", strerror(errno));
 140         return FILE_GetNtStatus();
 141     }
 142     speed = cfgetospeed(&port);
 143     switch (speed)
 144     {
 145     case B0:            sbr->BaudRate = 0;      break;
 146     case B50:           sbr->BaudRate = 50;     break;
 147     case B75:           sbr->BaudRate = 75;     break;
 148     case B110:          sbr->BaudRate = 110;    break;
 149     case B134:          sbr->BaudRate = 134;    break;
 150     case B150:          sbr->BaudRate = 150;    break;
 151     case B200:          sbr->BaudRate = 200;    break;
 152     case B300:          sbr->BaudRate = 300;    break;
 153     case B600:          sbr->BaudRate = 600;    break;
 154     case B1200:         sbr->BaudRate = 1200;   break;
 155     case B1800:         sbr->BaudRate = 1800;   break;
 156     case B2400:         sbr->BaudRate = 2400;   break;
 157     case B4800:         sbr->BaudRate = 4800;   break;
 158     case B9600:         sbr->BaudRate = 9600;   break;
 159     case B19200:        sbr->BaudRate = 19200;  break;
 160     case B38400:        sbr->BaudRate = 38400;  break;
 161 #ifdef B57600
 162     case B57600:        sbr->BaudRate = 57600;  break;
 163 #endif
 164 #ifdef B115200
 165     case B115200:       sbr->BaudRate = 115200; break;
 166 #endif
 167 #ifdef B230400
 168     case B230400:       sbr->BaudRate = 230400; break;
 169 #endif
 170 #ifdef B460800
 171     case B460800:       sbr->BaudRate = 460800; break;
 172 #endif
 173 #ifdef B500000
 174     case B500000:       sbr->BaudRate = 500000; break;
 175 #endif
 176 #ifdef B921600
 177     case B921600:       sbr->BaudRate = 921600; break;
 178 #endif
 179 #ifdef B1000000
 180     case B1000000:      sbr->BaudRate = 1000000; break;
 181 #endif
 182 #ifdef B1152000
 183     case B1152000:      sbr->BaudRate = 1152000; break;
 184 #endif
 185 #ifdef B1500000
 186     case B1500000:      sbr->BaudRate = 1500000; break;
 187 #endif
 188 #ifdef B2000000
 189     case B2000000:      sbr->BaudRate = 2000000; break;
 190 #endif
 191 #ifdef B2500000
 192     case B2500000:      sbr->BaudRate = 2500000; break;
 193 #endif
 194 #ifdef B3000000
 195     case B3000000:      sbr->BaudRate = 3000000; break;
 196 #endif
 197 #ifdef B3500000
 198     case B3500000:      sbr->BaudRate = 3500000; break;
 199 #endif
 200 #ifdef B4000000
 201     case B4000000:      sbr->BaudRate = 4000000; break;
 202 #endif
 203     default:
 204         ERR("unknown speed %x\n", speed);
 205         return STATUS_INVALID_PARAMETER;
 206     }
 207     return STATUS_SUCCESS;
 208 }
 209
 210 static NTSTATUS get_hand_flow(int fd, SERIAL_HANDFLOW* shf)
 211 {
 212     int stat = 0;
 213     struct termios port;
 214
 215     if (tcgetattr(fd, &port) == -1)
 216     {
 217         ERR("tcgetattr error '%s'\n", strerror(errno));
 218         return FILE_GetNtStatus();
 219     }
 220     /* termios does not support DTR/DSR flow control */
 221     shf->ControlHandShake = 0;
 222     shf->FlowReplace = 0;
 223 #ifdef TIOCMGET
 224     if (ioctl(fd, TIOCMGET, &stat) == -1)
 225     {
 226         WARN("ioctl error '%s'\n", strerror(errno));
 227         shf->ControlHandShake |= SERIAL_DTR_CONTROL;
 228         shf->FlowReplace |= SERIAL_RTS_CONTROL;
 229     }
 230 #else
 231     WARN("Setting DTR/RTS to enabled by default\n");
 232     shf->ControlHandShake |= SERIAL_DTR_CONTROL;
 233     shf->FlowReplace |= SERIAL_RTS_CONTROL;
 234 #endif
 235 #ifdef TIOCM_DTR
 236     if (stat & TIOCM_DTR)
 237 #endif
 238         shf->ControlHandShake |= SERIAL_DTR_CONTROL;
 239 #ifdef CRTSCTS
 240     if (port.c_cflag & CRTSCTS)
 241     {
 242         shf->FlowReplace |= SERIAL_RTS_CONTROL;
 243         shf->ControlHandShake |= SERIAL_CTS_HANDSHAKE;
 244     }
 245     else
 246 #endif
 247     {
 248 #ifdef TIOCM_RTS
 249         if (stat & TIOCM_RTS)
 250 #endif
 251             shf->FlowReplace |= SERIAL_RTS_CONTROL;
 252     }
 253     if (port.c_iflag & IXOFF)
 254         shf->FlowReplace |= SERIAL_AUTO_RECEIVE;
 255     if (port.c_iflag & IXON)
 256         shf->FlowReplace |= SERIAL_AUTO_TRANSMIT;
 257
 258     shf->XonLimit = 10;
 259     shf->XoffLimit = 10;
 260     return STATUS_SUCCESS;
 261 }
 262
 263 static NTSTATUS get_line_control(int fd, SERIAL_LINE_CONTROL* slc)
 264 {
 265     struct termios port;
 266
 267     if (tcgetattr(fd, &port) == -1)
 268     {
 269         ERR("tcgetattr error '%s'\n", strerror(errno));
 270         return FILE_GetNtStatus();
 271     }
 272
 273 #ifdef CMSPAR
 274     switch (port.c_cflag & (PARENB | PARODD | CMSPAR))
 275 #else
 276     switch (port.c_cflag & (PARENB | PARODD))
 277 #endif
 278     {
 279     case 0:                     slc->Parity = NOPARITY;         break;
 280     case PARENB:                slc->Parity = EVENPARITY;       break;
 281     case PARENB|PARODD:         slc->Parity = ODDPARITY;        break;
 282 #ifdef CMSPAR
 283     case PARENB|CMSPAR:         slc->Parity = MARKPARITY;       break;
 284     case PARENB|PARODD|CMSPAR:  slc->Parity = SPACEPARITY;      break;
 285 #endif
 286     }
 287     switch (port.c_cflag & CSIZE)
 288     {
 289     case CS5:   slc->WordLength = 5;    break;
 290     case CS6:   slc->WordLength = 6;    break;
 291     case CS7:   slc->WordLength = 7;    break;
 292     case CS8:   slc->WordLength = 8;    break;
 293     default: ERR("unknown size %x\n", (UINT)(port.c_cflag & CSIZE));
 294     }
 295
 296     if (port.c_cflag & CSTOPB)
 297     {
 298         if (slc->WordLength == 5)
 299             slc->StopBits = ONE5STOPBITS;
 300         else
 301             slc->StopBits = TWOSTOPBITS;
 302     }
 303     else
 304         slc->StopBits = ONESTOPBIT;
 305
 306     return STATUS_SUCCESS;
 307 }
 308
 309 static NTSTATUS get_modem_status(int fd, DWORD* lpModemStat)
 310 {
 311     NTSTATUS    status = STATUS_NOT_SUPPORTED;
 312     int         mstat;
 313
 314     *lpModemStat = 0;
 315 #ifdef TIOCMGET
 316     if (!ioctl(fd, TIOCMGET, &mstat))
 317     {
 318 #ifdef TIOCM_CTS
 319         if (mstat & TIOCM_CTS)  *lpModemStat |= MS_CTS_ON;
 320 #endif
 321 #ifdef TIOCM_DSR
 322         if (mstat & TIOCM_DSR)  *lpModemStat |= MS_DSR_ON;
 323 #endif
 324 #ifdef TIOCM_RNG
 325         if (mstat & TIOCM_RNG)  *lpModemStat |= MS_RING_ON;
 326 #endif
 327 #ifdef TIOCM_CAR
 328         /* FIXME: Not really sure about RLSD UB 990810 */
 329         if (mstat & TIOCM_CAR)  *lpModemStat |= MS_RLSD_ON;
 330 #endif
 331         TRACE("%04x -> %s%s%s%s\n", mstat,
 332               (*lpModemStat & MS_RLSD_ON) ? "MS_RLSD_ON " : "",
 333               (*lpModemStat & MS_RING_ON) ? "MS_RING_ON " : "",
 334               (*lpModemStat & MS_DSR_ON)  ? "MS_DSR_ON  " : "",
 335               (*lpModemStat & MS_CTS_ON)  ? "MS_CTS_ON  " : "");
 336         return STATUS_SUCCESS;
 337     }
 338     WARN("TIOCMGET err %s\n", strerror(errno));
 339     status = FILE_GetNtStatus();
 340 #endif
 341     return status;
 342 }
 343
 344 static NTSTATUS get_special_chars(int fd, SERIAL_CHARS* sc)
 345 {
 346     struct termios port;
 347
 348     if (tcgetattr(fd, &port) == -1)
 349     {
 350         ERR("tcgetattr error '%s'\n", strerror(errno));
 351         return FILE_GetNtStatus();
 352     }
 353     sc->EofChar   = port.c_cc[VEOF];
 354     sc->ErrorChar = 0xFF;
 355     sc->BreakChar = 0; /* FIXME */
 356     sc->EventChar = 0; /* FIXME */
 357     sc->XonChar   = port.c_cc[VSTART];
 358     sc->XoffChar  = port.c_cc[VSTOP];
 359
 360     return STATUS_SUCCESS;
 361 }
 362
 363 static NTSTATUS get_status(int fd, SERIAL_STATUS* ss)
 364 {
 365     NTSTATUS    status = STATUS_SUCCESS;
 366
 367     ss->Errors = 0;
 368     ss->HoldReasons = 0;
 369     ss->EofReceived = FALSE;
 370     ss->WaitForImmediate = FALSE;
 371 #ifdef TIOCOUTQ
 372     if (ioctl(fd, TIOCOUTQ, &ss->AmountInOutQueue) == -1)
 373     {
 374         WARN("ioctl returned error\n");
 375         status = FILE_GetNtStatus();
 376     }
 377 #else
 378     ss->AmountInOutQueue = 0; /* FIXME: find a different way to find out */
 379 #endif
 380
 381 #ifdef TIOCINQ
 382     if (ioctl(fd, TIOCINQ, &ss->AmountInInQueue))
 383     {
 384         WARN("ioctl returned error\n");
 385         status = FILE_GetNtStatus();
 386     }
 387 #else
 388     ss->AmountInInQueue = 0; /* FIXME: find a different way to find out */
 389 #endif
 390     return status;
 391 }
 392
 393 static void stop_waiting( HANDLE handle )
 394 {
 395     NTSTATUS status;
 396
 397     SERVER_START_REQ( set_serial_info )
 398     {
 399         req->handle = wine_server_obj_handle( handle );
 400         req->flags = SERIALINFO_PENDING_WAIT;
 401         if ((status = wine_server_call( req )))
 402             ERR("failed to clear waiting state: %#x\n", status);
 403     }
 404     SERVER_END_REQ;
 405 }
 406
 407 static NTSTATUS get_wait_mask(HANDLE hDevice, DWORD *mask, DWORD *cookie, DWORD *pending_write, BOOL start_wait)
 408 {
 409     NTSTATUS    status;
 410
 411     SERVER_START_REQ( get_serial_info )
 412     {
 413         req->handle = wine_server_obj_handle( hDevice );
 414         req->flags = pending_write ? SERIALINFO_PENDING_WRITE : 0;
 415         if (start_wait) req->flags |= SERIALINFO_PENDING_WAIT;
 416         if (!(status = wine_server_call( req )))
 417         {
 418             *mask = reply->eventmask;
 419             if (cookie) *cookie = reply->cookie;
 420             if (pending_write) *pending_write = reply->pending_write;
 421         }
 422     }
 423     SERVER_END_REQ;
 424     return status;
 425 }
 426
 427 static NTSTATUS purge(int fd, DWORD flags)
 428 {
 429     /*
 430     ** not exactly sure how these are different
 431     ** Perhaps if we had our own internal queues, one flushes them
 432     ** and the other flushes the kernel's buffers.
 433     */
 434     if (flags & PURGE_TXABORT) tcflush(fd, TCOFLUSH);
 435     if (flags & PURGE_RXABORT) tcflush(fd, TCIFLUSH);
 436     if (flags & PURGE_TXCLEAR) tcflush(fd, TCOFLUSH);
 437     if (flags & PURGE_RXCLEAR) tcflush(fd, TCIFLUSH);
 438     return STATUS_SUCCESS;
 439 }
 440
 441 static NTSTATUS set_baud_rate(int fd, const SERIAL_BAUD_RATE* sbr)
 442 {
 443     struct termios port;
 444
 445     if (tcgetattr(fd, &port) == -1)
 446     {
 447         ERR("tcgetattr error '%s'\n", strerror(errno));
 448         return FILE_GetNtStatus();
 449     }
 450
 451     switch (sbr->BaudRate)
 452     {
 453     case 0:         cfsetospeed( &port, B0 ); break;
 454     case 50:        cfsetospeed( &port, B50 ); break;
 455     case 75:        cfsetospeed( &port, B75 ); break;
 456     case 110:
 457     case CBR_110:   cfsetospeed( &port, B110 ); break;
 458     case 134:       cfsetospeed( &port, B134 ); break;
 459     case 150:       cfsetospeed( &port, B150 ); break;
 460     case 200:       cfsetospeed( &port, B200 ); break;
 461     case 300:
 462     case CBR_300:   cfsetospeed( &port, B300 ); break;
 463     case 600:
 464     case CBR_600:   cfsetospeed( &port, B600 ); break;
 465     case 1200:
 466     case CBR_1200:  cfsetospeed( &port, B1200 ); break;
 467     case 1800:      cfsetospeed( &port, B1800 ); break;
 468     case 2400:
 469     case CBR_2400:  cfsetospeed( &port, B2400 ); break;
 470     case 4800:
 471     case CBR_4800:  cfsetospeed( &port, B4800 ); break;
 472     case 9600:
 473     case CBR_9600:  cfsetospeed( &port, B9600 ); break;
 474     case 19200:
 475     case CBR_19200: cfsetospeed( &port, B19200 ); break;
 476     case 38400:
 477     case CBR_38400: cfsetospeed( &port, B38400 ); break;
 478 #ifdef B57600
 479     case 57600: cfsetospeed( &port, B57600 ); break;
 480 #endif
 481 #ifdef B115200
 482     case 115200: cfsetospeed( &port, B115200 ); break;
 483 #endif
 484 #ifdef B230400
 485     case 230400: cfsetospeed( &port, B230400 ); break;
 486 #endif
 487 #ifdef B460800
 488     case 460800: cfsetospeed( &port, B460800 ); break;
 489 #endif
 490 #ifdef B500000
 491     case 500000: cfsetospeed( &port, B500000 ); break;
 492 #endif
 493 #ifdef B921600
 494     case 921600: cfsetospeed( &port, B921600 ); break;
 495 #endif
 496 #ifdef B1000000
 497     case 1000000: cfsetospeed( &port, B1000000 ); break;
 498 #endif
 499 #ifdef B1152000
 500     case 1152000: cfsetospeed( &port, B1152000 ); break;
 501 #endif
 502 #ifdef B1500000
 503     case 1500000: cfsetospeed( &port, B1500000 ); break;
 504 #endif
 505 #ifdef B2000000
 506     case 2000000: cfsetospeed( &port, B2000000 ); break;
 507 #endif
 508 #ifdef B2500000
 509     case 2500000: cfsetospeed( &port, B2500000 ); break;
 510 #endif
 511 #ifdef B3000000
 512     case 3000000: cfsetospeed( &port, B3000000 ); break;
 513 #endif
 514 #ifdef B3500000
 515     case 3500000: cfsetospeed( &port, B3500000 ); break;
 516 #endif
 517 #ifdef B4000000
 518     case 4000000: cfsetospeed( &port, B4000000 ); break;
 519 #endif
 520     default:
 521 #if defined (HAVE_LINUX_SERIAL_H) && defined (TIOCSSERIAL)
 522         {
 523             struct serial_struct nuts;
 524             int arby;
 525
 526             ioctl(fd, TIOCGSERIAL, &nuts);
 527             nuts.custom_divisor = nuts.baud_base / sbr->BaudRate;
 528             if (!(nuts.custom_divisor)) nuts.custom_divisor = 1;
 529             arby = nuts.baud_base / nuts.custom_divisor;
 530             nuts.flags &= ~ASYNC_SPD_MASK;
 531             nuts.flags |= ASYNC_SPD_CUST;
 532             WARN("You (or a program acting at your behest) have specified\n"
 533                  "a non-standard baud rate %d.  Wine will set the rate to %d,\n"
 534                  "which is as close as we can get by our present understanding of your\n"
 535                  "hardware. I hope you know what you are doing.  Any disruption Wine\n"
 536                  "has caused to your linux system can be undone with setserial\n"
 537                  "(see man setserial). If you have incapacitated a Hayes type modem,\n"
 538                  "reset it and it will probably recover.\n", sbr->BaudRate, arby);
 539             ioctl(fd, TIOCSSERIAL, &nuts);
 540             cfsetospeed( &port, B38400 );
 541         }
 542         break;
 543 #else     /* Don't have linux/serial.h or lack TIOCSSERIAL */
 544         ERR("baudrate %d\n", sbr->BaudRate);
 545         return STATUS_NOT_SUPPORTED;
 546 #endif    /* Don't have linux/serial.h or lack TIOCSSERIAL */
 547     }
 548     cfsetispeed( &port, cfgetospeed(&port) );
 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     port.c_oflag &= ~(OPOST);
 649     port.c_cflag &= ~(HUPCL);
 650     port.c_cflag |= CLOCAL | CREAD;
 651
 652     /*
 653      * on FreeBSD, turning off ICANON does not disable IEXTEN,
 654      * so we must turn it off explicitly. No harm done on Linux.
 655      */
 656     port.c_lflag &= ~(ICANON|ECHO|ISIG|IEXTEN);
 657     port.c_lflag |= NOFLSH;
 658
 659     bytesize = slc->WordLength;
 660     stopbits = slc->StopBits;
 661
 662 #ifdef CMSPAR
 663     port.c_cflag &= ~(PARENB | PARODD | CMSPAR);
 664 #else
 665     port.c_cflag &= ~(PARENB | PARODD);
 666 #endif
 667
 668     /* make sure that reads don't block */
 669     port.c_cc[VMIN] = 0;
 670     port.c_cc[VTIME] = 0;
 671
 672     switch (slc->Parity)
 673     {
 674     case NOPARITY:      port.c_iflag &= ~INPCK;                         break;
 675     case ODDPARITY:     port.c_cflag |= PARENB | PARODD;                break;
 676     case EVENPARITY:    port.c_cflag |= PARENB;                         break;
 677 #ifdef CMSPAR
 678         /* Linux defines mark/space (stick) parity */
 679     case MARKPARITY:    port.c_cflag |= PARENB | CMSPAR;                break;
 680     case SPACEPARITY:   port.c_cflag |= PARENB | PARODD |  CMSPAR;      break;
 681 #else
 682         /* try the POSIX way */
 683     case MARKPARITY:
 684         if (slc->StopBits == ONESTOPBIT)
 685         {
 686             stopbits = TWOSTOPBITS;
 687             port.c_iflag &= ~INPCK;
 688         }
 689         else
 690         {
 691             FIXME("Cannot set MARK Parity\n");
 692             return STATUS_NOT_SUPPORTED;
 693         }
 694         break;
 695     case SPACEPARITY:
 696         if (slc->WordLength < 8)
 697         {
 698             bytesize +=1;
 699             port.c_iflag &= ~INPCK;
 700         }
 701         else
 702         {
 703             FIXME("Cannot set SPACE Parity\n");
 704             return STATUS_NOT_SUPPORTED;
 705         }
 706         break;
 707 #endif
 708     default:
 709         FIXME("Parity %d is not supported\n", slc->Parity);
 710         return STATUS_NOT_SUPPORTED;
 711     }
 712
 713     port.c_cflag &= ~CSIZE;
 714     switch (bytesize)
 715     {
 716     case 5:     port.c_cflag |= CS5;    break;
 717     case 6:     port.c_cflag |= CS6;    break;
 718     case 7:     port.c_cflag |= CS7;    break;
 719     case 8:     port.c_cflag |= CS8;    break;
 720     default:
 721         FIXME("ByteSize %d is not supported\n", bytesize);
 722         return STATUS_NOT_SUPPORTED;
 723     }
 724
 725     switch (stopbits)
 726     {
 727     case ONESTOPBIT:    port.c_cflag &= ~CSTOPB;        break;
 728     case ONE5STOPBITS: /* will be selected if bytesize is 5 */
 729     case TWOSTOPBITS:   port.c_cflag |= CSTOPB;         break;
 730     default:
 731         FIXME("StopBits %d is not supported\n", stopbits);
 732         return STATUS_NOT_SUPPORTED;
 733     }
 734     /* otherwise it hangs with pending input*/
 735     if (tcsetattr(fd, TCSANOW, &port) == -1)
 736     {
 737         ERR("tcsetattr error '%s'\n", strerror(errno));
 738         return FILE_GetNtStatus();
 739     }
 740     return STATUS_SUCCESS;
 741 }
 742
 743 static NTSTATUS set_queue_size(int fd, const SERIAL_QUEUE_SIZE* sqs)
 744 {
 745     FIXME("insize %d outsize %d unimplemented stub\n", sqs->InSize, sqs->OutSize);
 746     return STATUS_SUCCESS;
 747 }
 748
 749 static NTSTATUS set_special_chars(int fd, const SERIAL_CHARS* sc)
 750 {
 751     struct termios port;
 752
 753     if (tcgetattr(fd, &port) == -1)
 754     {
 755         ERR("tcgetattr error '%s'\n", strerror(errno));
 756         return FILE_GetNtStatus();
 757     }
 758
 759     port.c_cc[VEOF  ] = sc->EofChar;
 760     /* FIXME: sc->ErrorChar is not supported */
 761     /* FIXME: sc->BreakChar is not supported */
 762     /* FIXME: sc->EventChar is not supported */
 763     port.c_cc[VSTART] = sc->XonChar;
 764     port.c_cc[VSTOP ] = sc->XoffChar;
 765
 766     if (tcsetattr(fd, TCSANOW, &port) == -1)
 767     {
 768         ERR("tcsetattr error '%s'\n", strerror(errno));
 769         return FILE_GetNtStatus();
 770     }
 771     return STATUS_SUCCESS;
 772 }
 773
 774 /*
 775  * does not change IXOFF but simulates that IXOFF has been received:
 776  */
 777 static NTSTATUS set_XOff(int fd)
 778 {
 779     if (tcflow(fd, TCOOFF))
 780     {
 781         return FILE_GetNtStatus();
 782     }
 783     return STATUS_SUCCESS;
 784 }
 785
 786 /*
 787  * does not change IXON but simulates that IXON has been received:
 788  */
 789 static NTSTATUS set_XOn(int fd)
 790 {
 791     if (tcflow(fd, TCOON))
 792     {
 793         return FILE_GetNtStatus();
 794     }
 795     return STATUS_SUCCESS;
 796 }
 797
 798 /*             serial_irq_info
 799  * local structure holding the irq values we need for WaitCommEvent()
 800  *
 801  * Stripped down from struct serial_icounter_struct, which may not be available on some systems
 802  * As the modem line interrupts (cts, dsr, rng, dcd) only get updated with TIOCMIWAIT active,
 803  * no need to carry them in the internal structure
 804  *
 805  */
 806 typedef struct serial_irq_info
 807 {
 808     int rx, tx, frame, overrun, parity, brk, buf_overrun, temt;
 809 }serial_irq_info;
 810
 811 /***********************************************************************
 812  * Data needed by the thread polling for the changing CommEvent
 813  */
 814 typedef struct async_commio
 815 {
 816     HANDLE              hDevice;
 817     DWORD*              events;
 818     IO_STATUS_BLOCK*    iosb;
 819     HANDLE              hEvent;
 820     DWORD               evtmask;
 821     DWORD               cookie;
 822     DWORD               mstat;
 823     DWORD               pending_write;
 824     serial_irq_info     irq_info;
 825 } async_commio;
 826
 827 /***********************************************************************
 828  *   Get extended interrupt count info, needed for wait_on
 829  */
 830 static NTSTATUS get_irq_info(int fd, serial_irq_info *irq_info)
 831 {
 832     int out;
 833
 834 #if defined (HAVE_LINUX_SERIAL_H) && defined (TIOCGICOUNT)
 835     struct serial_icounter_struct einfo;
 836     if (!ioctl(fd, TIOCGICOUNT, &einfo))
 837     {
 838         irq_info->rx          = einfo.rx;
 839         irq_info->tx          = einfo.tx;
 840         irq_info->frame       = einfo.frame;
 841         irq_info->overrun     = einfo.overrun;
 842         irq_info->parity      = einfo.parity;
 843         irq_info->brk         = einfo.brk;
 844         irq_info->buf_overrun = einfo.buf_overrun;
 845     }
 846     else
 847     {
 848         TRACE("TIOCGICOUNT err %s\n", strerror(errno));
 849         memset(irq_info,0, sizeof(serial_irq_info));
 850     }
 851 #else
 852     memset(irq_info,0, sizeof(serial_irq_info));
 853 #endif
 854
 855     irq_info->temt = 0;
 856     /* Generate a single TX_TXEMPTY event when the TX Buffer turns empty*/
 857 #ifdef TIOCSERGETLSR  /* prefer to log the state TIOCSERGETLSR */
 858     if (!ioctl(fd, TIOCSERGETLSR, &out))
 859     {
 860         irq_info->temt = (out & TIOCSER_TEMT) != 0;
 861         return STATUS_SUCCESS;
 862     }
 863
 864     TRACE("TIOCSERGETLSR err %s\n", strerror(errno));
 865 #endif
 866 #ifdef TIOCOUTQ  /* otherwise we log when the out queue gets empty */
 867     if (!ioctl(fd, TIOCOUTQ, &out))
 868     {
 869         irq_info->temt = out == 0;
 870         return STATUS_SUCCESS;
 871     }
 872     TRACE("TIOCOUTQ err %s\n", strerror(errno));
 873     return FILE_GetNtStatus();
 874 #endif
 875     return STATUS_SUCCESS;
 876 }
 877
 878
 879 static DWORD check_events(int fd, DWORD mask,
 880                           const serial_irq_info *new,
 881                           const serial_irq_info *old,
 882                           DWORD new_mstat, DWORD old_mstat, DWORD pending_write)
 883 {
 884     DWORD ret = 0, queue;
 885
 886     TRACE("mask 0x%08x\n", mask);
 887     TRACE("old->rx          0x%08x vs. new->rx          0x%08x\n", old->rx, new->rx);
 888     TRACE("old->tx          0x%08x vs. new->tx          0x%08x\n", old->tx, new->tx);
 889     TRACE("old->frame       0x%08x vs. new->frame       0x%08x\n", old->frame, new->frame);
 890     TRACE("old->overrun     0x%08x vs. new->overrun     0x%08x\n", old->overrun, new->overrun);
 891     TRACE("old->parity      0x%08x vs. new->parity      0x%08x\n", old->parity, new->parity);
 892     TRACE("old->brk         0x%08x vs. new->brk         0x%08x\n", old->brk, new->brk);
 893     TRACE("old->buf_overrun 0x%08x vs. new->buf_overrun 0x%08x\n", old->buf_overrun, new->buf_overrun);
 894     TRACE("old->temt        0x%08x vs. new->temt        0x%08x\n", old->temt, new->temt);
 895
 896     if (old->brk != new->brk) ret |= EV_BREAK;
 897     if ((old_mstat & MS_CTS_ON ) != (new_mstat & MS_CTS_ON )) ret |= EV_CTS;
 898     if ((old_mstat & MS_DSR_ON ) != (new_mstat & MS_DSR_ON )) ret |= EV_DSR;
 899     if ((old_mstat & MS_RING_ON) != (new_mstat & MS_RING_ON)) ret |= EV_RING;
 900     if ((old_mstat & MS_RLSD_ON) != (new_mstat & MS_RLSD_ON)) ret |= EV_RLSD;
 901     if (old->frame != new->frame || old->overrun != new->overrun || old->parity != new->parity) ret |= EV_ERR;
 902     if (mask & EV_RXCHAR)
 903     {
 904         queue = 0;
 905 #ifdef TIOCINQ
 906         if (ioctl(fd, TIOCINQ, &queue))
 907             WARN("TIOCINQ returned error\n");
 908 #endif
 909         if (queue)
 910             ret |= EV_RXCHAR;
 911     }
 912     if (mask & EV_TXEMPTY)
 913     {
 914         if ((!old->temt || pending_write) && new->temt)
 915             ret |= EV_TXEMPTY;
 916     }
 917     return ret & mask;
 918 }
 919
 920 /***********************************************************************
 921  *             wait_for_event      (INTERNAL)
 922  *
 923  *  We need to poll for what is interesting
 924  *  TIOCMIWAIT only checks modem status line and may not be aborted by a changing mask
 925  *
 926  */
 927 static DWORD CALLBACK wait_for_event(LPVOID arg)
 928 {
 929     async_commio *commio = arg;
 930     int fd, needs_close;
 931
 932     if (!server_get_unix_fd( commio->hDevice, FILE_READ_DATA | FILE_WRITE_DATA, &fd, &needs_close, NULL, NULL ))
 933     {
 934         serial_irq_info new_irq_info;
 935         DWORD new_mstat, dummy, cookie;
 936         LARGE_INTEGER time;
 937
 938         TRACE("device=%p fd=0x%08x mask=0x%08x buffer=%p event=%p irq_info=%p\n",
 939               commio->hDevice, fd, commio->evtmask, commio->events, commio->hEvent, &commio->irq_info);
 940
 941         time.QuadPart = (ULONGLONG)10000;
 942         time.QuadPart = -time.QuadPart;
 943         for (;;)
 944         {
 945             /*
 946              * TIOCMIWAIT is not adequate
 947              *
 948              * FIXME:
 949              * We don't handle the EV_RXFLAG (the eventchar)
 950              */
 951             NtDelayExecution(FALSE, &time);
 952             get_irq_info(fd, &new_irq_info);
 953             if (get_modem_status(fd, &new_mstat))
 954             {
 955                 TRACE("get_modem_status failed\n");
 956                 *commio->events = 0;
 957                 break;
 958             }
 959             *commio->events = check_events(fd, commio->evtmask,
 960                                            &new_irq_info, &commio->irq_info,
 961                                            new_mstat, commio->mstat, commio->pending_write);
 962             if (*commio->events) break;
 963             get_wait_mask(commio->hDevice, &dummy, &cookie, (commio->evtmask & EV_TXEMPTY) ? &commio->pending_write : NULL, FALSE);
 964             if (commio->cookie != cookie)
 965             {
 966                 *commio->events = 0;
 967                 break;
 968             }
 969         }
 970         if (needs_close) close( fd );
 971     }
 972     if (commio->iosb)
 973     {
 974         if (*commio->events)
 975         {
 976             commio->iosb->u.Status = STATUS_SUCCESS;
 977             commio->iosb->Information = sizeof(DWORD);
 978         }
 979         else
 980             commio->iosb->u.Status = STATUS_CANCELLED;
 981     }
 982     stop_waiting(commio->hDevice);
 983     if (commio->hEvent) NtSetEvent(commio->hEvent, NULL);
 984     RtlFreeHeap(GetProcessHeap(), 0, commio);
 985     return 0;
 986 }
 987
 988 static NTSTATUS wait_on(HANDLE hDevice, int fd, HANDLE hEvent, PIO_STATUS_BLOCK piosb, DWORD* events)
 989 {
 990     async_commio*       commio;
 991     NTSTATUS            status;
 992
 993     if ((status = NtResetEvent(hEvent, NULL)))
 994         return status;
 995
 996     commio = RtlAllocateHeap(GetProcessHeap(), 0, sizeof (async_commio));
 997     if (!commio) return STATUS_NO_MEMORY;
 998
 999     commio->hDevice = hDevice;
1000     commio->events  = events;
1001     commio->iosb    = piosb;
1002     commio->hEvent  = hEvent;
1003     commio->pending_write = 0;
1004     status = get_wait_mask(commio->hDevice, &commio->evtmask, &commio->cookie, (commio->evtmask & EV_TXEMPTY) ? &commio->pending_write : NULL, TRUE);
1005     if (status)
1006     {
1007         RtlFreeHeap(GetProcessHeap(), 0, commio);
1008         return status;
1009     }
1010
1011 /* We may never return, if some capabilities miss
1012  * Return error in that case
1013  */
1014 #if !defined(TIOCINQ)
1015     if (commio->evtmask & EV_RXCHAR)
1016         goto error_caps;
1017 #endif
1018 #if !(defined(TIOCSERGETLSR) && defined(TIOCSER_TEMT)) || !defined(TIOCINQ)
1019     if (commio->evtmask & EV_TXEMPTY)
1020         goto error_caps;
1021 #endif
1022 #if !defined(TIOCMGET)
1023     if (commio->evtmask & (EV_CTS | EV_DSR| EV_RING| EV_RLSD))
1024         goto error_caps;
1025 #endif
1026 #if !defined(TIOCM_CTS)
1027     if (commio->evtmask & EV_CTS)
1028         goto error_caps;
1029 #endif
1030 #if !defined(TIOCM_DSR)
1031     if (commio->evtmask & EV_DSR)
1032         goto error_caps;
1033 #endif
1034 #if !defined(TIOCM_RNG)
1035     if (commio->evtmask & EV_RING)
1036         goto error_caps;
1037 #endif
1038 #if !defined(TIOCM_CAR)
1039     if (commio->evtmask & EV_RLSD)
1040         goto error_caps;
1041 #endif
1042     if (commio->evtmask & EV_RXFLAG)
1043         FIXME("EV_RXFLAG not handled\n");
1044
1045     if ((status = get_irq_info(fd, &commio->irq_info)) &&
1046         (commio->evtmask & (EV_BREAK | EV_ERR)))
1047         goto out_now;
1048
1049     if ((status = get_modem_status(fd, &commio->mstat)) &&
1050         (commio->evtmask & (EV_CTS | EV_DSR| EV_RING| EV_RLSD)))
1051         goto out_now;
1052
1053     /* We might have received something or the TX buffer is delivered */
1054     *events = check_events(fd, commio->evtmask,
1055                                &commio->irq_info, &commio->irq_info,
1056                                commio->mstat, commio->mstat, commio->pending_write);
1057     if (*events)
1058     {
1059         status = STATUS_SUCCESS;
1060         goto out_now;
1061     }
1062
1063     /* create the worker for the task */
1064     status = RtlQueueWorkItem(wait_for_event, commio, 0 /* FIXME */);
1065     if (status != STATUS_SUCCESS) goto out_now;
1066     return STATUS_PENDING;
1067
1068 #if !defined(TIOCINQ) || (!(defined(TIOCSERGETLSR) && defined(TIOCSER_TEMT)) || !defined(TIOCINQ)) || !defined(TIOCMGET) || !defined(TIOCM_CTS) ||!defined(TIOCM_DSR) || !defined(TIOCM_RNG) || !defined(TIOCM_CAR)
1069 error_caps:
1070     FIXME("Returning error because of missing capabilities\n");
1071     status = STATUS_INVALID_PARAMETER;
1072 #endif
1073 out_now:
1074     stop_waiting(commio->hDevice);
1075     RtlFreeHeap(GetProcessHeap(), 0, commio);
1076     return status;
1077 }
1078
1079 static NTSTATUS xmit_immediate(HANDLE hDevice, int fd, const char* ptr)
1080 {
1081     /* FIXME: not perfect as it should bypass the in-queue */
1082     WARN("(%p,'%c') not perfect!\n", hDevice, *ptr);
1083     if (write(fd, ptr, 1) != 1)
1084         return FILE_GetNtStatus();
1085     return STATUS_SUCCESS;
1086 }
1087
1088 /******************************************************************
1089  *              COMM_DeviceIoControl
1090  *
1091  *
1092  */
1093 static inline NTSTATUS io_control(HANDLE hDevice,
1094                                   HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
1095                                   PVOID UserApcContext,
1096                                   PIO_STATUS_BLOCK piosb,
1097                                   ULONG dwIoControlCode,
1098                                   LPVOID lpInBuffer, DWORD nInBufferSize,
1099                                   LPVOID lpOutBuffer, DWORD nOutBufferSize)
1100 {
1101     DWORD       sz = 0, access = FILE_READ_DATA;
1102     NTSTATUS    status = STATUS_SUCCESS;
1103     int         fd = -1, needs_close = 0;
1104     enum server_fd_type type;
1105
1106     TRACE("%p %s %p %d %p %d %p\n",
1107           hDevice, iocode2str(dwIoControlCode), lpInBuffer, nInBufferSize,
1108           lpOutBuffer, nOutBufferSize, piosb);
1109
1110     switch (dwIoControlCode)
1111     {
1112     case IOCTL_SERIAL_GET_TIMEOUTS:
1113     case IOCTL_SERIAL_SET_TIMEOUTS:
1114     case IOCTL_SERIAL_GET_WAIT_MASK:
1115     case IOCTL_SERIAL_SET_WAIT_MASK:
1116         /* these are handled on the server side */
1117         return STATUS_NOT_SUPPORTED;
1118     }
1119
1120     piosb->Information = 0;
1121
1122     if ((status = server_get_unix_fd( hDevice, access, &fd, &needs_close, &type, NULL )))
1123         goto error;
1124     if (type != FD_TYPE_SERIAL)
1125     {
1126         if (needs_close) close( fd );
1127         status = STATUS_OBJECT_TYPE_MISMATCH;
1128         goto error;
1129     }
1130
1131     switch (dwIoControlCode)
1132     {
1133     case IOCTL_SERIAL_CLR_DTR:
1134 #ifdef TIOCM_DTR
1135         if (whack_modem(fd, ~TIOCM_DTR, 0) == -1) status = FILE_GetNtStatus();
1136 #else
1137         status = STATUS_NOT_SUPPORTED;
1138 #endif
1139         break;
1140     case IOCTL_SERIAL_CLR_RTS:
1141 #ifdef TIOCM_RTS
1142         if (whack_modem(fd, ~TIOCM_RTS, 0) == -1) status = FILE_GetNtStatus();
1143 #else
1144         status = STATUS_NOT_SUPPORTED;
1145 #endif
1146         break;
1147     case IOCTL_SERIAL_GET_BAUD_RATE:
1148         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_BAUD_RATE))
1149         {
1150             if (!(status = get_baud_rate(fd, lpOutBuffer)))
1151                 sz = sizeof(SERIAL_BAUD_RATE);
1152         }
1153         else
1154             status = STATUS_INVALID_PARAMETER;
1155         break;
1156     case IOCTL_SERIAL_GET_CHARS:
1157         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_CHARS))
1158         {
1159             if (!(status = get_special_chars(fd, lpOutBuffer)))
1160                 sz = sizeof(SERIAL_CHARS);
1161         }
1162         else
1163             status = STATUS_INVALID_PARAMETER;
1164         break;
1165      case IOCTL_SERIAL_GET_COMMSTATUS:
1166         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_STATUS))
1167         {
1168             if (!(status = get_status(fd, lpOutBuffer)))
1169                 sz = sizeof(SERIAL_STATUS);
1170         }
1171         else status = STATUS_INVALID_PARAMETER;
1172         break;
1173     case IOCTL_SERIAL_GET_HANDFLOW:
1174         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_HANDFLOW))
1175         {
1176             if (!(status = get_hand_flow(fd, lpOutBuffer)))
1177                 sz = sizeof(SERIAL_HANDFLOW);
1178         }
1179         else
1180             status = STATUS_INVALID_PARAMETER;
1181         break;
1182     case IOCTL_SERIAL_GET_LINE_CONTROL:
1183         if (lpOutBuffer && nOutBufferSize == sizeof(SERIAL_LINE_CONTROL))
1184         {
1185             if (!(status = get_line_control(fd, lpOutBuffer)))
1186                 sz = sizeof(SERIAL_LINE_CONTROL);
1187         }
1188         else
1189             status = STATUS_INVALID_PARAMETER;
1190         break;
1191     case IOCTL_SERIAL_GET_MODEMSTATUS:
1192         if (lpOutBuffer && nOutBufferSize == sizeof(DWORD))
1193         {
1194             if (!(status = get_modem_status(fd, lpOutBuffer)))
1195                 sz = sizeof(DWORD);
1196         }
1197         else 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_XOFF:
1283         status = set_XOff(fd);
1284         break;
1285     case IOCTL_SERIAL_SET_XON:
1286         status = set_XOn(fd);
1287         break;
1288     case IOCTL_SERIAL_WAIT_ON_MASK:
1289         if (lpOutBuffer && nOutBufferSize == sizeof(DWORD))
1290         {
1291             if (!(status = wait_on(hDevice, fd, hEvent, piosb, lpOutBuffer)))
1292                 sz = sizeof(DWORD);
1293         }
1294         else
1295             status = STATUS_INVALID_PARAMETER;
1296         break;
1297     default:
1298         FIXME("Unsupported IOCTL %x (type=%x access=%x func=%x meth=%x)\n",
1299               dwIoControlCode, dwIoControlCode >> 16, (dwIoControlCode >> 14) & 3,
1300               (dwIoControlCode >> 2) & 0xFFF, dwIoControlCode & 3);
1301         sz = 0;
1302         status = STATUS_INVALID_PARAMETER;
1303         break;
1304     }
1305     if (needs_close) close( fd );
1306  error:
1307     piosb->u.Status = status;
1308     piosb->Information = sz;
1309     if (hEvent && status != STATUS_PENDING) NtSetEvent(hEvent, NULL);
1310     return status;
1311 }
1312
1313 NTSTATUS COMM_DeviceIoControl(HANDLE hDevice,
1314                               HANDLE hEvent, PIO_APC_ROUTINE UserApcRoutine,
1315                               PVOID UserApcContext,
1316                               PIO_STATUS_BLOCK piosb,
1317                               ULONG dwIoControlCode,
1318                               LPVOID lpInBuffer, DWORD nInBufferSize,
1319                               LPVOID lpOutBuffer, DWORD nOutBufferSize)
1320 {
1321     NTSTATUS    status;
1322
1323     if (dwIoControlCode == IOCTL_SERIAL_WAIT_ON_MASK)
1324     {
1325         HANDLE          hev = hEvent;
1326
1327         /* this is an ioctl we implement in a non blocking way if hEvent is not
1328          * null
1329          * so we have to explicitly wait if no hEvent is provided
1330          */
1331         if (!hev)
1332         {
1333             OBJECT_ATTRIBUTES   attr;
1334
1335             attr.Length                   = sizeof(attr);
1336             attr.RootDirectory            = 0;
1337             attr.ObjectName               = NULL;
1338             attr.Attributes               = OBJ_CASE_INSENSITIVE | OBJ_OPENIF;
1339             attr.SecurityDescriptor       = NULL;
1340             attr.SecurityQualityOfService = NULL;
1341             status = NtCreateEvent(&hev, EVENT_ALL_ACCESS, &attr, SynchronizationEvent, FALSE);
1342
1343             if (status) return status;
1344         }
1345         status = io_control(hDevice, hev, UserApcRoutine, UserApcContext,
1346                             piosb, dwIoControlCode, lpInBuffer, nInBufferSize,
1347                             lpOutBuffer, nOutBufferSize);
1348         if (hev != hEvent)
1349         {
1350             if (status == STATUS_PENDING)
1351             {
1352                 NtWaitForSingleObject(hev, FALSE, NULL);
1353                 status = STATUS_SUCCESS;
1354             }
1355             NtClose(hev);
1356         }
1357     }
1358     else status = io_control(hDevice, hEvent, UserApcRoutine, UserApcContext,
1359                              piosb, dwIoControlCode, lpInBuffer, nInBufferSize,
1360                              lpOutBuffer, nOutBufferSize);
1361     return status;
1362 }
1363
1364 NTSTATUS COMM_FlushBuffersFile( int fd )
1365 {
1366 #ifdef HAVE_TCDRAIN
1367     while (tcdrain( fd ) == -1)
1368     {
1369         if (errno != EINTR) return FILE_GetNtStatus();
1370     }
1371     return STATUS_SUCCESS;
1372 #elif defined(TIOCDRAIN)
1373     while (ioctl( fd, TIOCDRAIN ) == -1)
1374     {
1375         if (errno != EINTR) return FILE_GetNtStatus();
1376     }
1377     return STATUS_SUCCESS;
1378 #elif defined(TCSBRK)
1379     while (ioctl( fd, TCSBRK, 1 ) == -1)
1380     {
1381         if (errno != EINTR) return FILE_GetNtStatus();
1382     }
1383     return STATUS_SUCCESS;
1384 #else
1385     ERR( "not supported\n" );
1386     return STATUS_NOT_IMPLEMENTED;
1387 #endif
1388 }