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/* -*- c-basic-offset: 8 -*- |
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rdesktop: A Remote Desktop Protocol client. |
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|
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Copyright (C) Matthew Chapman 1999-2005 |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <termios.h> |
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#include <strings.h> |
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#include <sys/ioctl.h> |
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|
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#ifdef HAVE_SYS_MODEM_H |
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#include <sys/modem.h> |
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#endif |
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#ifdef HAVE_SYS_FILIO_H |
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#include <sys/filio.h> |
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#endif |
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#ifdef HAVE_SYS_STRTIO_H |
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#include <sys/strtio.h> |
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#endif |
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|
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#include "rdesktop.h" |
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|
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#ifdef WITH_DEBUG_SERIAL |
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#define DEBUG_SERIAL(args) printf args; |
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#else |
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#define DEBUG_SERIAL(args) |
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#endif |
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|
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#define FILE_DEVICE_SERIAL_PORT 0x1b |
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|
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#define SERIAL_SET_BAUD_RATE 1 |
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#define SERIAL_SET_QUEUE_SIZE 2 |
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#define SERIAL_SET_LINE_CONTROL 3 |
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#define SERIAL_SET_BREAK_ON 4 |
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#define SERIAL_SET_BREAK_OFF 5 |
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#define SERIAL_IMMEDIATE_CHAR 6 |
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#define SERIAL_SET_TIMEOUTS 7 |
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#define SERIAL_GET_TIMEOUTS 8 |
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#define SERIAL_SET_DTR 9 |
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#define SERIAL_CLR_DTR 10 |
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#define SERIAL_RESET_DEVICE 11 |
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#define SERIAL_SET_RTS 12 |
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#define SERIAL_CLR_RTS 13 |
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#define SERIAL_SET_XOFF 14 |
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#define SERIAL_SET_XON 15 |
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#define SERIAL_GET_WAIT_MASK 16 |
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#define SERIAL_SET_WAIT_MASK 17 |
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#define SERIAL_WAIT_ON_MASK 18 |
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#define SERIAL_PURGE 19 |
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#define SERIAL_GET_BAUD_RATE 20 |
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#define SERIAL_GET_LINE_CONTROL 21 |
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#define SERIAL_GET_CHARS 22 |
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#define SERIAL_SET_CHARS 23 |
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#define SERIAL_GET_HANDFLOW 24 |
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#define SERIAL_SET_HANDFLOW 25 |
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#define SERIAL_GET_MODEMSTATUS 26 |
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#define SERIAL_GET_COMMSTATUS 27 |
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#define SERIAL_XOFF_COUNTER 28 |
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#define SERIAL_GET_PROPERTIES 29 |
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#define SERIAL_GET_DTRRTS 30 |
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#define SERIAL_LSRMST_INSERT 31 |
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#define SERIAL_CONFIG_SIZE 32 |
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#define SERIAL_GET_COMMCONFIG 33 |
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#define SERIAL_SET_COMMCONFIG 34 |
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#define SERIAL_GET_STATS 35 |
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#define SERIAL_CLEAR_STATS 36 |
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#define SERIAL_GET_MODEM_CONTROL 37 |
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#define SERIAL_SET_MODEM_CONTROL 38 |
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#define SERIAL_SET_FIFO_CONTROL 39 |
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|
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#define STOP_BITS_1 0 |
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#define STOP_BITS_2 2 |
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|
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#define NO_PARITY 0 |
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#define ODD_PARITY 1 |
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#define EVEN_PARITY 2 |
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|
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#define SERIAL_PURGE_TXABORT 0x00000001 |
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#define SERIAL_PURGE_RXABORT 0x00000002 |
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#define SERIAL_PURGE_TXCLEAR 0x00000004 |
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#define SERIAL_PURGE_RXCLEAR 0x00000008 |
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|
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/* SERIAL_WAIT_ON_MASK */ |
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#define SERIAL_EV_RXCHAR 0x0001 /* Any Character received */ |
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#define SERIAL_EV_RXFLAG 0x0002 /* Received certain character */ |
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#define SERIAL_EV_TXEMPTY 0x0004 /* Transmitt Queue Empty */ |
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#define SERIAL_EV_CTS 0x0008 /* CTS changed state */ |
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#define SERIAL_EV_DSR 0x0010 /* DSR changed state */ |
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#define SERIAL_EV_RLSD 0x0020 /* RLSD changed state */ |
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#define SERIAL_EV_BREAK 0x0040 /* BREAK received */ |
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#define SERIAL_EV_ERR 0x0080 /* Line status error occurred */ |
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#define SERIAL_EV_RING 0x0100 /* Ring signal detected */ |
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#define SERIAL_EV_PERR 0x0200 /* Printer error occured */ |
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#define SERIAL_EV_RX80FULL 0x0400 /* Receive buffer is 80 percent full */ |
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#define SERIAL_EV_EVENT1 0x0800 /* Provider specific event 1 */ |
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#define SERIAL_EV_EVENT2 0x1000 /* Provider specific event 2 */ |
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|
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/* Modem Status */ |
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#define SERIAL_MS_DTR 0x01 |
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#define SERIAL_MS_RTS 0x02 |
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#define SERIAL_MS_CTS 0x10 |
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#define SERIAL_MS_DSR 0x20 |
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#define SERIAL_MS_RNG 0x40 |
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#define SERIAL_MS_CAR 0x80 |
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|
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/* Handflow */ |
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#define SERIAL_DTR_CONTROL 0x01 |
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#define SERIAL_CTS_HANDSHAKE 0x08 |
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#define SERIAL_ERROR_ABORT 0x80000000 |
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|
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#define SERIAL_XON_HANDSHAKE 0x01 |
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#define SERIAL_XOFF_HANDSHAKE 0x02 |
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#define SERIAL_DSR_SENSITIVITY 0x40 |
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|
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#define SERIAL_CHAR_EOF 0 |
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#define SERIAL_CHAR_ERROR 1 |
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#define SERIAL_CHAR_BREAK 2 |
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#define SERIAL_CHAR_EVENT 3 |
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#define SERIAL_CHAR_XON 4 |
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#define SERIAL_CHAR_XOFF 5 |
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|
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#ifndef CRTSCTS |
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#define CRTSCTS 0 |
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#endif |
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|
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/* FIONREAD should really do the same thing as TIOCINQ, where it is |
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* not available */ |
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#if !defined(TIOCINQ) && defined(FIONREAD) |
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#define TIOCINQ FIONREAD |
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#endif |
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#if !defined(TIOCOUTQ) && defined(FIONWRITE) |
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#define TIOCOUTQ FIONWRITE |
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#endif |
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|
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extern RDPDR_DEVICE g_rdpdr_device[]; |
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|
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static SERIAL_DEVICE * |
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get_serial_info(NTHANDLE handle) |
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{ |
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int index; |
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|
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for (index = 0; index < RDPDR_MAX_DEVICES; index++) |
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{ |
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if (handle == g_rdpdr_device[index].handle) |
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return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
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} |
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return NULL; |
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} |
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|
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static BOOL |
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get_termios(SERIAL_DEVICE * pser_inf, NTHANDLE serial_fd) |
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{ |
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speed_t speed; |
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struct termios *ptermios; |
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|
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ptermios = pser_inf->ptermios; |
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|
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if (tcgetattr(serial_fd, ptermios) == -1) |
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return False; |
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|
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speed = cfgetispeed(ptermios); |
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switch (speed) |
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{ |
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#ifdef B75 |
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case B75: |
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pser_inf->baud_rate = 75; |
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break; |
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#endif |
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#ifdef B110 |
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case B110: |
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pser_inf->baud_rate = 110; |
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break; |
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#endif |
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#ifdef B134 |
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case B134: |
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pser_inf->baud_rate = 134; |
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break; |
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#endif |
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#ifdef B150 |
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case B150: |
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pser_inf->baud_rate = 150; |
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break; |
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#endif |
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#ifdef B300 |
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case B300: |
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pser_inf->baud_rate = 300; |
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break; |
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#endif |
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#ifdef B600 |
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case B600: |
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pser_inf->baud_rate = 600; |
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break; |
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#endif |
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#ifdef B1200 |
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case B1200: |
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pser_inf->baud_rate = 1200; |
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break; |
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#endif |
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#ifdef B1800 |
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case B1800: |
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pser_inf->baud_rate = 1800; |
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break; |
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#endif |
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#ifdef B2400 |
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case B2400: |
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pser_inf->baud_rate = 2400; |
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break; |
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#endif |
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#ifdef B4800 |
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case B4800: |
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pser_inf->baud_rate = 4800; |
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break; |
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#endif |
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#ifdef B9600 |
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case B9600: |
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pser_inf->baud_rate = 9600; |
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break; |
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#endif |
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#ifdef B19200 |
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case B19200: |
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pser_inf->baud_rate = 19200; |
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break; |
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#endif |
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#ifdef B38400 |
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case B38400: |
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pser_inf->baud_rate = 38400; |
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break; |
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#endif |
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#ifdef B57600 |
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case B57600: |
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pser_inf->baud_rate = 57600; |
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break; |
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#endif |
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#ifdef B115200 |
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case B115200: |
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pser_inf->baud_rate = 115200; |
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break; |
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#endif |
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#ifdef B230400 |
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case B230400: |
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pser_inf->baud_rate = 230400; |
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break; |
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#endif |
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#ifdef B460800 |
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case B460800: |
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pser_inf->baud_rate = 460800; |
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break; |
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#endif |
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default: |
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pser_inf->baud_rate = 9600; |
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break; |
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} |
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|
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speed = cfgetospeed(ptermios); |
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pser_inf->dtr = (speed == B0) ? 0 : 1; |
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|
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pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
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pser_inf->parity = |
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(ptermios-> |
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c_cflag & PARENB) ? ((ptermios-> |
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c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
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switch (ptermios->c_cflag & CSIZE) |
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{ |
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case CS5: |
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pser_inf->word_length = 5; |
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break; |
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case CS6: |
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pser_inf->word_length = 6; |
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break; |
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case CS7: |
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pser_inf->word_length = 7; |
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break; |
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default: |
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pser_inf->word_length = 8; |
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break; |
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} |
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|
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if (ptermios->c_cflag & CRTSCTS) |
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{ |
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pser_inf->control = SERIAL_DTR_CONTROL | SERIAL_CTS_HANDSHAKE | SERIAL_ERROR_ABORT; |
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} |
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else |
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{ |
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pser_inf->control = SERIAL_DTR_CONTROL | SERIAL_ERROR_ABORT; |
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} |
301 |
|
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pser_inf->xonoff = SERIAL_DSR_SENSITIVITY; |
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if (ptermios->c_iflag & IXON) |
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pser_inf->xonoff |= SERIAL_XON_HANDSHAKE; |
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|
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if (ptermios->c_iflag & IXOFF) |
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pser_inf->xonoff |= SERIAL_XOFF_HANDSHAKE; |
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|
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pser_inf->chars[SERIAL_CHAR_XON] = ptermios->c_cc[VSTART]; |
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pser_inf->chars[SERIAL_CHAR_XOFF] = ptermios->c_cc[VSTOP]; |
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pser_inf->chars[SERIAL_CHAR_EOF] = ptermios->c_cc[VEOF]; |
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pser_inf->chars[SERIAL_CHAR_BREAK] = ptermios->c_cc[VINTR]; |
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pser_inf->chars[SERIAL_CHAR_ERROR] = ptermios->c_cc[VKILL]; |
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|
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return True; |
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} |
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|
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static void |
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set_termios(SERIAL_DEVICE * pser_inf, NTHANDLE serial_fd) |
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{ |
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speed_t speed; |
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|
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struct termios *ptermios; |
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|
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ptermios = pser_inf->ptermios; |
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|
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|
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switch (pser_inf->baud_rate) |
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{ |
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#ifdef B75 |
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case 75: |
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speed = B75; |
333 |
break; |
334 |
#endif |
335 |
#ifdef B110 |
336 |
case 110: |
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speed = B110; |
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break; |
339 |
#endif |
340 |
#ifdef B134 |
341 |
case 134: |
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speed = B134; |
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break; |
344 |
#endif |
345 |
#ifdef B150 |
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case 150: |
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speed = B150; |
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break; |
349 |
#endif |
350 |
#ifdef B300 |
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case 300: |
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speed = B300; |
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break; |
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#endif |
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#ifdef B600 |
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case 600: |
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speed = B600; |
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break; |
359 |
#endif |
360 |
#ifdef B1200 |
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case 1200: |
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speed = B1200; |
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break; |
364 |
#endif |
365 |
#ifdef B1800 |
366 |
case 1800: |
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speed = B1800; |
368 |
break; |
369 |
#endif |
370 |
#ifdef B2400 |
371 |
case 2400: |
372 |
speed = B2400; |
373 |
break; |
374 |
#endif |
375 |
#ifdef B4800 |
376 |
case 4800: |
377 |
speed = B4800; |
378 |
break; |
379 |
#endif |
380 |
#ifdef B9600 |
381 |
case 9600: |
382 |
speed = B9600; |
383 |
break; |
384 |
#endif |
385 |
#ifdef B19200 |
386 |
case 19200: |
387 |
speed = B19200; |
388 |
break; |
389 |
#endif |
390 |
#ifdef B38400 |
391 |
case 38400: |
392 |
speed = B38400; |
393 |
break; |
394 |
#endif |
395 |
#ifdef B57600 |
396 |
case 57600: |
397 |
speed = B57600; |
398 |
break; |
399 |
#endif |
400 |
#ifdef B115200 |
401 |
case 115200: |
402 |
speed = B115200; |
403 |
break; |
404 |
#endif |
405 |
#ifdef B230400 |
406 |
case 230400: |
407 |
speed = B115200; |
408 |
break; |
409 |
#endif |
410 |
#ifdef B460800 |
411 |
case 460800: |
412 |
speed = B115200; |
413 |
break; |
414 |
#endif |
415 |
default: |
416 |
speed = B9600; |
417 |
break; |
418 |
} |
419 |
|
420 |
#ifdef CBAUD |
421 |
ptermios->c_cflag &= ~CBAUD; |
422 |
ptermios->c_cflag |= speed; |
423 |
#else |
424 |
/* on systems with separate ispeed and ospeed, we can remember the speed |
425 |
in ispeed while changing DTR with ospeed */ |
426 |
cfsetispeed(pser_inf->ptermios, speed); |
427 |
cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0); |
428 |
#endif |
429 |
|
430 |
ptermios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE | CRTSCTS); |
431 |
switch (pser_inf->stop_bits) |
432 |
{ |
433 |
case STOP_BITS_2: |
434 |
ptermios->c_cflag |= CSTOPB; |
435 |
break; |
436 |
default: |
437 |
ptermios->c_cflag &= ~CSTOPB; |
438 |
break; |
439 |
} |
440 |
|
441 |
switch (pser_inf->parity) |
442 |
{ |
443 |
case EVEN_PARITY: |
444 |
ptermios->c_cflag |= PARENB; |
445 |
break; |
446 |
case ODD_PARITY: |
447 |
ptermios->c_cflag |= PARENB | PARODD; |
448 |
break; |
449 |
case NO_PARITY: |
450 |
ptermios->c_cflag &= ~(PARENB | PARODD); |
451 |
break; |
452 |
} |
453 |
|
454 |
switch (pser_inf->word_length) |
455 |
{ |
456 |
case 5: |
457 |
ptermios->c_cflag |= CS5; |
458 |
break; |
459 |
case 6: |
460 |
ptermios->c_cflag |= CS6; |
461 |
break; |
462 |
case 7: |
463 |
ptermios->c_cflag |= CS7; |
464 |
break; |
465 |
default: |
466 |
ptermios->c_cflag |= CS8; |
467 |
break; |
468 |
} |
469 |
|
470 |
#if 0 |
471 |
if (pser_inf->rts) |
472 |
ptermios->c_cflag |= CRTSCTS; |
473 |
else |
474 |
ptermios->c_cflag &= ~CRTSCTS; |
475 |
#endif |
476 |
|
477 |
if (pser_inf->control & SERIAL_CTS_HANDSHAKE) |
478 |
{ |
479 |
ptermios->c_cflag |= CRTSCTS; |
480 |
} |
481 |
else |
482 |
{ |
483 |
ptermios->c_cflag &= ~CRTSCTS; |
484 |
} |
485 |
|
486 |
|
487 |
if (pser_inf->xonoff & SERIAL_XON_HANDSHAKE) |
488 |
{ |
489 |
ptermios->c_iflag |= IXON | IMAXBEL; |
490 |
} |
491 |
if (pser_inf->xonoff & SERIAL_XOFF_HANDSHAKE) |
492 |
{ |
493 |
ptermios->c_iflag |= IXOFF | IMAXBEL; |
494 |
} |
495 |
|
496 |
if ((pser_inf->xonoff & (SERIAL_XOFF_HANDSHAKE | SERIAL_XON_HANDSHAKE)) == 0) |
497 |
{ |
498 |
ptermios->c_iflag &= ~IXON; |
499 |
ptermios->c_iflag &= ~IXOFF; |
500 |
} |
501 |
|
502 |
ptermios->c_cc[VSTART] = pser_inf->chars[SERIAL_CHAR_XON]; |
503 |
ptermios->c_cc[VSTOP] = pser_inf->chars[SERIAL_CHAR_XOFF]; |
504 |
ptermios->c_cc[VEOF] = pser_inf->chars[SERIAL_CHAR_EOF]; |
505 |
ptermios->c_cc[VINTR] = pser_inf->chars[SERIAL_CHAR_BREAK]; |
506 |
ptermios->c_cc[VKILL] = pser_inf->chars[SERIAL_CHAR_ERROR]; |
507 |
|
508 |
tcsetattr(serial_fd, TCSANOW, ptermios); |
509 |
} |
510 |
|
511 |
/* Enumeration of devices from rdesktop.c */ |
512 |
/* returns numer of units found and initialized. */ |
513 |
/* optarg looks like ':com1=/dev/ttyS0' */ |
514 |
/* when it arrives to this function. */ |
515 |
/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */ |
516 |
int |
517 |
serial_enum_devices(uint32 * id, char *optarg) |
518 |
{ |
519 |
SERIAL_DEVICE *pser_inf; |
520 |
|
521 |
char *pos = optarg; |
522 |
char *pos2; |
523 |
int count = 0; |
524 |
|
525 |
/* skip the first colon */ |
526 |
optarg++; |
527 |
while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES) |
528 |
{ |
529 |
/* Init data structures for device */ |
530 |
pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE)); |
531 |
pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios)); |
532 |
memset(pser_inf->ptermios, 0, sizeof(struct termios)); |
533 |
pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios)); |
534 |
memset(pser_inf->pold_termios, 0, sizeof(struct termios)); |
535 |
|
536 |
pos2 = next_arg(optarg, '='); |
537 |
strcpy(g_rdpdr_device[*id].name, optarg); |
538 |
|
539 |
toupper_str(g_rdpdr_device[*id].name); |
540 |
|
541 |
g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1); |
542 |
strcpy(g_rdpdr_device[*id].local_path, pos2); |
543 |
printf("SERIAL %s to %s\n", g_rdpdr_device[*id].name, |
544 |
g_rdpdr_device[*id].local_path); |
545 |
/* set device type */ |
546 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL; |
547 |
g_rdpdr_device[*id].pdevice_data = (void *) pser_inf; |
548 |
count++; |
549 |
(*id)++; |
550 |
|
551 |
optarg = pos; |
552 |
} |
553 |
return count; |
554 |
} |
555 |
|
556 |
static NTSTATUS |
557 |
serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition, |
558 |
uint32 flags_and_attributes, char *filename, NTHANDLE * handle) |
559 |
{ |
560 |
NTHANDLE serial_fd; |
561 |
SERIAL_DEVICE *pser_inf; |
562 |
struct termios *ptermios; |
563 |
|
564 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data; |
565 |
ptermios = pser_inf->ptermios; |
566 |
serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR | O_NOCTTY | O_NONBLOCK); |
567 |
|
568 |
if (serial_fd == -1) |
569 |
{ |
570 |
perror("open"); |
571 |
return STATUS_ACCESS_DENIED; |
572 |
} |
573 |
|
574 |
if (!get_termios(pser_inf, serial_fd)) |
575 |
{ |
576 |
printf("INFO: SERIAL %s access denied\n", g_rdpdr_device[device_id].name); |
577 |
fflush(stdout); |
578 |
return STATUS_ACCESS_DENIED; |
579 |
} |
580 |
|
581 |
/* Store handle for later use */ |
582 |
g_rdpdr_device[device_id].handle = serial_fd; |
583 |
|
584 |
/* some sane information */ |
585 |
DEBUG_SERIAL(("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u, rts %u\n", g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path, pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr, pser_inf->rts)); |
586 |
|
587 |
pser_inf->ptermios->c_iflag &= |
588 |
~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON); |
589 |
pser_inf->ptermios->c_oflag &= ~OPOST; |
590 |
pser_inf->ptermios->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); |
591 |
pser_inf->ptermios->c_cflag &= ~(CSIZE | PARENB); |
592 |
pser_inf->ptermios->c_cflag |= CS8; |
593 |
|
594 |
tcsetattr(serial_fd, TCSANOW, pser_inf->ptermios); |
595 |
|
596 |
pser_inf->event_txempty = 0; |
597 |
pser_inf->event_cts = 0; |
598 |
pser_inf->event_dsr = 0; |
599 |
pser_inf->event_rlsd = 0; |
600 |
pser_inf->event_pending = 0; |
601 |
|
602 |
*handle = serial_fd; |
603 |
|
604 |
/* all read and writes should be non blocking */ |
605 |
if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1) |
606 |
perror("fcntl"); |
607 |
|
608 |
pser_inf->read_total_timeout_constant = 5; |
609 |
|
610 |
return STATUS_SUCCESS; |
611 |
} |
612 |
|
613 |
static NTSTATUS |
614 |
serial_close(NTHANDLE handle) |
615 |
{ |
616 |
int i = get_device_index(handle); |
617 |
if (i >= 0) |
618 |
g_rdpdr_device[i].handle = 0; |
619 |
|
620 |
rdpdr_abort_io(handle, 0, STATUS_TIMEOUT); |
621 |
close(handle); |
622 |
return STATUS_SUCCESS; |
623 |
} |
624 |
|
625 |
static NTSTATUS |
626 |
serial_read(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
627 |
{ |
628 |
long timeout; |
629 |
SERIAL_DEVICE *pser_inf; |
630 |
struct termios *ptermios; |
631 |
#ifdef WITH_DEBUG_SERIAL |
632 |
int bytes_inqueue; |
633 |
#endif |
634 |
|
635 |
|
636 |
timeout = 90; |
637 |
pser_inf = get_serial_info(handle); |
638 |
ptermios = pser_inf->ptermios; |
639 |
|
640 |
/* Set timeouts kind of like the windows serial timeout parameters. Multiply timeout |
641 |
with requested read size */ |
642 |
if (pser_inf->read_total_timeout_multiplier | pser_inf->read_total_timeout_constant) |
643 |
{ |
644 |
timeout = |
645 |
(pser_inf->read_total_timeout_multiplier * length + |
646 |
pser_inf->read_total_timeout_constant + 99) / 100; |
647 |
} |
648 |
else if (pser_inf->read_interval_timeout) |
649 |
{ |
650 |
timeout = (pser_inf->read_interval_timeout * length + 99) / 100; |
651 |
} |
652 |
|
653 |
/* If a timeout is set, do a blocking read, which times out after some time. |
654 |
It will make rdesktop less responsive, but it will improve serial performance, by not |
655 |
reading one character at a time. */ |
656 |
if (timeout == 0) |
657 |
{ |
658 |
ptermios->c_cc[VTIME] = 0; |
659 |
ptermios->c_cc[VMIN] = 0; |
660 |
} |
661 |
else |
662 |
{ |
663 |
ptermios->c_cc[VTIME] = timeout; |
664 |
ptermios->c_cc[VMIN] = 1; |
665 |
} |
666 |
tcsetattr(handle, TCSANOW, ptermios); |
667 |
|
668 |
#if defined(WITH_DEBUG_SERIAL) && defined(TIOCINQ) |
669 |
ioctl(handle, TIOCINQ, &bytes_inqueue); |
670 |
DEBUG_SERIAL(("serial_read inqueue: %d expected %d\n", bytes_inqueue, length)); |
671 |
#endif |
672 |
|
673 |
*result = read(handle, data, length); |
674 |
|
675 |
#ifdef WITH_DEBUG_SERIAL |
676 |
DEBUG_SERIAL(("serial_read Bytes %d\n", *result)); |
677 |
if (*result > 0) |
678 |
hexdump(data, *result); |
679 |
#endif |
680 |
|
681 |
return STATUS_SUCCESS; |
682 |
} |
683 |
|
684 |
static NTSTATUS |
685 |
serial_write(NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result) |
686 |
{ |
687 |
SERIAL_DEVICE *pser_inf; |
688 |
|
689 |
pser_inf = get_serial_info(handle); |
690 |
|
691 |
*result = write(handle, data, length); |
692 |
|
693 |
if (*result > 0) |
694 |
pser_inf->event_txempty = *result; |
695 |
|
696 |
DEBUG_SERIAL(("serial_write length %d, offset %d result %d\n", length, offset, *result)); |
697 |
|
698 |
return STATUS_SUCCESS; |
699 |
} |
700 |
|
701 |
static NTSTATUS |
702 |
serial_device_control(NTHANDLE handle, uint32 request, STREAM in, STREAM out) |
703 |
{ |
704 |
int flush_mask, purge_mask; |
705 |
uint32 result, modemstate; |
706 |
uint8 immediate; |
707 |
SERIAL_DEVICE *pser_inf; |
708 |
struct termios *ptermios; |
709 |
|
710 |
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
711 |
return STATUS_INVALID_PARAMETER; |
712 |
|
713 |
pser_inf = get_serial_info(handle); |
714 |
ptermios = pser_inf->ptermios; |
715 |
|
716 |
/* extract operation */ |
717 |
request >>= 2; |
718 |
request &= 0xfff; |
719 |
|
720 |
switch (request) |
721 |
{ |
722 |
case SERIAL_SET_BAUD_RATE: |
723 |
in_uint32_le(in, pser_inf->baud_rate); |
724 |
set_termios(pser_inf, handle); |
725 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BAUD_RATE %d\n", |
726 |
pser_inf->baud_rate)); |
727 |
break; |
728 |
case SERIAL_GET_BAUD_RATE: |
729 |
out_uint32_le(out, pser_inf->baud_rate); |
730 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_BAUD_RATE %d\n", |
731 |
pser_inf->baud_rate)); |
732 |
break; |
733 |
case SERIAL_SET_QUEUE_SIZE: |
734 |
in_uint32_le(in, pser_inf->queue_in_size); |
735 |
in_uint32_le(in, pser_inf->queue_out_size); |
736 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_QUEUE_SIZE in %d out %d\n", |
737 |
pser_inf->queue_in_size, pser_inf->queue_out_size)); |
738 |
break; |
739 |
case SERIAL_SET_LINE_CONTROL: |
740 |
in_uint8(in, pser_inf->stop_bits); |
741 |
in_uint8(in, pser_inf->parity); |
742 |
in_uint8(in, pser_inf->word_length); |
743 |
set_termios(pser_inf, handle); |
744 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_LINE_CONTROL stop %d parity %d word %d\n", pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length)); |
745 |
break; |
746 |
case SERIAL_GET_LINE_CONTROL: |
747 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_LINE_CONTROL\n")); |
748 |
out_uint8(out, pser_inf->stop_bits); |
749 |
out_uint8(out, pser_inf->parity); |
750 |
out_uint8(out, pser_inf->word_length); |
751 |
break; |
752 |
case SERIAL_IMMEDIATE_CHAR: |
753 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_IMMEDIATE_CHAR\n")); |
754 |
in_uint8(in, immediate); |
755 |
serial_write(handle, &immediate, 1, 0, &result); |
756 |
break; |
757 |
case SERIAL_CONFIG_SIZE: |
758 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_CONFIG_SIZE\n")); |
759 |
out_uint32_le(out, 0); |
760 |
break; |
761 |
case SERIAL_GET_CHARS: |
762 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_CHARS\n")); |
763 |
out_uint8a(out, pser_inf->chars, 6); |
764 |
break; |
765 |
case SERIAL_SET_CHARS: |
766 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_CHARS\n")); |
767 |
in_uint8a(in, pser_inf->chars, 6); |
768 |
#ifdef WITH_DEBUG_SERIAL |
769 |
hexdump(pser_inf->chars, 6); |
770 |
#endif |
771 |
set_termios(pser_inf, handle); |
772 |
break; |
773 |
case SERIAL_GET_HANDFLOW: |
774 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_HANDFLOW\n")); |
775 |
get_termios(pser_inf, handle); |
776 |
out_uint32_le(out, pser_inf->control); |
777 |
out_uint32_le(out, pser_inf->xonoff); /* Xon/Xoff */ |
778 |
out_uint32_le(out, pser_inf->onlimit); |
779 |
out_uint32_le(out, pser_inf->offlimit); |
780 |
break; |
781 |
case SERIAL_SET_HANDFLOW: |
782 |
in_uint32_le(in, pser_inf->control); |
783 |
in_uint32_le(in, pser_inf->xonoff); |
784 |
in_uint32_le(in, pser_inf->onlimit); |
785 |
in_uint32_le(in, pser_inf->offlimit); |
786 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_HANDFLOW %x %x %x %x\n", |
787 |
pser_inf->control, pser_inf->xonoff, pser_inf->onlimit, |
788 |
pser_inf->onlimit)); |
789 |
set_termios(pser_inf, handle); |
790 |
break; |
791 |
case SERIAL_SET_TIMEOUTS: |
792 |
in_uint32(in, pser_inf->read_interval_timeout); |
793 |
in_uint32(in, pser_inf->read_total_timeout_multiplier); |
794 |
in_uint32(in, pser_inf->read_total_timeout_constant); |
795 |
in_uint32(in, pser_inf->write_total_timeout_multiplier); |
796 |
in_uint32(in, pser_inf->write_total_timeout_constant); |
797 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_TIMEOUTS read timeout %d %d %d\n", |
798 |
pser_inf->read_interval_timeout, |
799 |
pser_inf->read_total_timeout_multiplier, |
800 |
pser_inf->read_total_timeout_constant)); |
801 |
break; |
802 |
case SERIAL_GET_TIMEOUTS: |
803 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_TIMEOUTS read timeout %d %d %d\n", |
804 |
pser_inf->read_interval_timeout, |
805 |
pser_inf->read_total_timeout_multiplier, |
806 |
pser_inf->read_total_timeout_constant)); |
807 |
|
808 |
out_uint32(out, pser_inf->read_interval_timeout); |
809 |
out_uint32(out, pser_inf->read_total_timeout_multiplier); |
810 |
out_uint32(out, pser_inf->read_total_timeout_constant); |
811 |
out_uint32(out, pser_inf->write_total_timeout_multiplier); |
812 |
out_uint32(out, pser_inf->write_total_timeout_constant); |
813 |
break; |
814 |
case SERIAL_GET_WAIT_MASK: |
815 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_WAIT_MASK %X\n", |
816 |
pser_inf->wait_mask)); |
817 |
out_uint32(out, pser_inf->wait_mask); |
818 |
break; |
819 |
case SERIAL_SET_WAIT_MASK: |
820 |
in_uint32(in, pser_inf->wait_mask); |
821 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_WAIT_MASK %X\n", |
822 |
pser_inf->wait_mask)); |
823 |
break; |
824 |
case SERIAL_SET_DTR: |
825 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_DTR\n")); |
826 |
ioctl(handle, TIOCMGET, &result); |
827 |
result |= TIOCM_DTR; |
828 |
ioctl(handle, TIOCMSET, &result); |
829 |
pser_inf->dtr = 1; |
830 |
break; |
831 |
case SERIAL_CLR_DTR: |
832 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_CLR_DTR\n")); |
833 |
ioctl(handle, TIOCMGET, &result); |
834 |
result &= ~TIOCM_DTR; |
835 |
ioctl(handle, TIOCMSET, &result); |
836 |
pser_inf->dtr = 0; |
837 |
break; |
838 |
case SERIAL_SET_RTS: |
839 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_RTS\n")); |
840 |
ioctl(handle, TIOCMGET, &result); |
841 |
result |= TIOCM_RTS; |
842 |
ioctl(handle, TIOCMSET, &result); |
843 |
pser_inf->rts = 1; |
844 |
break; |
845 |
case SERIAL_CLR_RTS: |
846 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_CLR_RTS\n")); |
847 |
ioctl(handle, TIOCMGET, &result); |
848 |
result &= ~TIOCM_RTS; |
849 |
ioctl(handle, TIOCMSET, &result); |
850 |
pser_inf->rts = 0; |
851 |
break; |
852 |
case SERIAL_GET_MODEMSTATUS: |
853 |
modemstate = 0; |
854 |
#ifdef TIOCMGET |
855 |
ioctl(handle, TIOCMGET, &result); |
856 |
if (result & TIOCM_CTS) |
857 |
modemstate |= SERIAL_MS_CTS; |
858 |
if (result & TIOCM_DSR) |
859 |
modemstate |= SERIAL_MS_DSR; |
860 |
if (result & TIOCM_RNG) |
861 |
modemstate |= SERIAL_MS_RNG; |
862 |
if (result & TIOCM_CAR) |
863 |
modemstate |= SERIAL_MS_CAR; |
864 |
if (result & TIOCM_DTR) |
865 |
modemstate |= SERIAL_MS_DTR; |
866 |
if (result & TIOCM_RTS) |
867 |
modemstate |= SERIAL_MS_RTS; |
868 |
#endif |
869 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_MODEMSTATUS %X\n", modemstate)); |
870 |
out_uint32_le(out, modemstate); |
871 |
break; |
872 |
case SERIAL_GET_COMMSTATUS: |
873 |
out_uint32_le(out, 0); /* Errors */ |
874 |
out_uint32_le(out, 0); /* Hold reasons */ |
875 |
|
876 |
result = 0; |
877 |
#ifdef TIOCINQ |
878 |
ioctl(handle, TIOCINQ, &result); |
879 |
#endif |
880 |
out_uint32_le(out, result); /* Amount in in queue */ |
881 |
if (result) |
882 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_COMMSTATUS in queue %d\n", |
883 |
result)); |
884 |
|
885 |
result = 0; |
886 |
#ifdef TIOCOUTQ |
887 |
ioctl(handle, TIOCOUTQ, &result); |
888 |
#endif |
889 |
out_uint32_le(out, result); /* Amount in out queue */ |
890 |
if (result) |
891 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_COMMSTATUS out queue %d\n", result)); |
892 |
|
893 |
out_uint8(out, 0); /* EofReceived */ |
894 |
out_uint8(out, 0); /* WaitForImmediate */ |
895 |
break; |
896 |
case SERIAL_PURGE: |
897 |
in_uint32(in, purge_mask); |
898 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_PURGE purge_mask %X\n", purge_mask)); |
899 |
flush_mask = 0; |
900 |
if (purge_mask & SERIAL_PURGE_TXCLEAR) |
901 |
flush_mask |= TCOFLUSH; |
902 |
if (purge_mask & SERIAL_PURGE_RXCLEAR) |
903 |
flush_mask |= TCIFLUSH; |
904 |
if (flush_mask != 0) |
905 |
tcflush(handle, flush_mask); |
906 |
if (purge_mask & SERIAL_PURGE_TXABORT) |
907 |
rdpdr_abort_io(handle, 4, STATUS_CANCELLED); |
908 |
if (purge_mask & SERIAL_PURGE_RXABORT) |
909 |
rdpdr_abort_io(handle, 3, STATUS_CANCELLED); |
910 |
break; |
911 |
case SERIAL_WAIT_ON_MASK: |
912 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_WAIT_ON_MASK %X\n", |
913 |
pser_inf->wait_mask)); |
914 |
pser_inf->event_pending = 1; |
915 |
if (serial_get_event(handle, &result)) |
916 |
{ |
917 |
DEBUG_SERIAL(("WAIT end event = %x\n", result)); |
918 |
out_uint32_le(out, result); |
919 |
break; |
920 |
} |
921 |
return STATUS_PENDING; |
922 |
break; |
923 |
case SERIAL_SET_BREAK_ON: |
924 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BREAK_ON\n")); |
925 |
tcsendbreak(handle, 0); |
926 |
break; |
927 |
case SERIAL_RESET_DEVICE: |
928 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_RESET_DEVICE\n")); |
929 |
break; |
930 |
case SERIAL_SET_BREAK_OFF: |
931 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BREAK_OFF\n")); |
932 |
break; |
933 |
case SERIAL_SET_XOFF: |
934 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_XOFF\n")); |
935 |
break; |
936 |
case SERIAL_SET_XON: |
937 |
DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_XON\n")); |
938 |
tcflow(handle, TCION); |
939 |
break; |
940 |
default: |
941 |
unimpl("SERIAL IOCTL %d\n", request); |
942 |
return STATUS_INVALID_PARAMETER; |
943 |
} |
944 |
|
945 |
return STATUS_SUCCESS; |
946 |
} |
947 |
|
948 |
BOOL |
949 |
serial_get_event(NTHANDLE handle, uint32 * result) |
950 |
{ |
951 |
int index; |
952 |
SERIAL_DEVICE *pser_inf; |
953 |
int bytes; |
954 |
BOOL ret = False; |
955 |
|
956 |
*result = 0; |
957 |
index = get_device_index(handle); |
958 |
if (index < 0) |
959 |
return False; |
960 |
|
961 |
#ifdef TIOCINQ |
962 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
963 |
|
964 |
ioctl(handle, TIOCINQ, &bytes); |
965 |
|
966 |
if (bytes > 0) |
967 |
{ |
968 |
DEBUG_SERIAL(("serial_get_event Bytes %d\n", bytes)); |
969 |
if (bytes > pser_inf->event_rlsd) |
970 |
{ |
971 |
pser_inf->event_rlsd = bytes; |
972 |
if (pser_inf->wait_mask & SERIAL_EV_RLSD) |
973 |
{ |
974 |
DEBUG_SERIAL(("Event -> SERIAL_EV_RLSD \n")); |
975 |
*result |= SERIAL_EV_RLSD; |
976 |
ret = True; |
977 |
} |
978 |
|
979 |
} |
980 |
|
981 |
if ((bytes > 1) && (pser_inf->wait_mask & SERIAL_EV_RXFLAG)) |
982 |
{ |
983 |
DEBUG_SERIAL(("Event -> SERIAL_EV_RXFLAG Bytes %d\n", bytes)); |
984 |
*result |= SERIAL_EV_RXFLAG; |
985 |
ret = True; |
986 |
} |
987 |
if ((pser_inf->wait_mask & SERIAL_EV_RXCHAR)) |
988 |
{ |
989 |
DEBUG_SERIAL(("Event -> SERIAL_EV_RXCHAR Bytes %d\n", bytes)); |
990 |
*result |= SERIAL_EV_RXCHAR; |
991 |
ret = True; |
992 |
} |
993 |
|
994 |
} |
995 |
else |
996 |
{ |
997 |
pser_inf->event_rlsd = 0; |
998 |
} |
999 |
#endif |
1000 |
|
1001 |
#ifdef TIOCOUTQ |
1002 |
ioctl(handle, TIOCOUTQ, &bytes); |
1003 |
if ((bytes == 0) |
1004 |
&& (pser_inf->event_txempty > 0) && (pser_inf->wait_mask & SERIAL_EV_TXEMPTY)) |
1005 |
{ |
1006 |
|
1007 |
DEBUG_SERIAL(("Event -> SERIAL_EV_TXEMPTY\n")); |
1008 |
*result |= SERIAL_EV_TXEMPTY; |
1009 |
ret = True; |
1010 |
} |
1011 |
pser_inf->event_txempty = bytes; |
1012 |
#endif |
1013 |
|
1014 |
ioctl(handle, TIOCMGET, &bytes); |
1015 |
if ((bytes & TIOCM_DSR) != pser_inf->event_dsr) |
1016 |
{ |
1017 |
pser_inf->event_dsr = bytes & TIOCM_DSR; |
1018 |
if (pser_inf->wait_mask & SERIAL_EV_DSR) |
1019 |
{ |
1020 |
DEBUG_SERIAL(("event -> SERIAL_EV_DSR %s\n", |
1021 |
(bytes & TIOCM_DSR) ? "ON" : "OFF")); |
1022 |
*result |= SERIAL_EV_DSR; |
1023 |
ret = True; |
1024 |
} |
1025 |
} |
1026 |
|
1027 |
if ((bytes & TIOCM_CTS) != pser_inf->event_cts) |
1028 |
{ |
1029 |
pser_inf->event_cts = bytes & TIOCM_CTS; |
1030 |
if (pser_inf->wait_mask & SERIAL_EV_CTS) |
1031 |
{ |
1032 |
DEBUG_SERIAL((" EVENT-> SERIAL_EV_CTS %s\n", |
1033 |
(bytes & TIOCM_CTS) ? "ON" : "OFF")); |
1034 |
*result |= SERIAL_EV_CTS; |
1035 |
ret = True; |
1036 |
} |
1037 |
} |
1038 |
|
1039 |
if (ret) |
1040 |
pser_inf->event_pending = 0; |
1041 |
|
1042 |
return ret; |
1043 |
} |
1044 |
|
1045 |
/* Read timeout for a given file descripter (device) when adding fd's to select() */ |
1046 |
BOOL |
1047 |
serial_get_timeout(NTHANDLE handle, uint32 length, uint32 * timeout, uint32 * itv_timeout) |
1048 |
{ |
1049 |
int index; |
1050 |
SERIAL_DEVICE *pser_inf; |
1051 |
|
1052 |
index = get_device_index(handle); |
1053 |
if (index < 0) |
1054 |
return True; |
1055 |
|
1056 |
if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL) |
1057 |
{ |
1058 |
return False; |
1059 |
} |
1060 |
|
1061 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
1062 |
|
1063 |
*timeout = |
1064 |
pser_inf->read_total_timeout_multiplier * length + |
1065 |
pser_inf->read_total_timeout_constant; |
1066 |
*itv_timeout = pser_inf->read_interval_timeout; |
1067 |
return True; |
1068 |
} |
1069 |
|
1070 |
DEVICE_FNS serial_fns = { |
1071 |
serial_create, |
1072 |
serial_close, |
1073 |
serial_read, |
1074 |
serial_write, |
1075 |
serial_device_control |
1076 |
}; |