[proxmark3-svn] / uart / uart_posix.c

/*
 * Generic uart / rs232/ serial port library
 *
 * Copyright (c) 2013, Roel Verdult
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the
 * names of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * @file uart_posix.c
 *
 * This version of the library has functionality removed which was not used by
 * proxmark3 project.
 */

#include "uart.h"

// Test if we are dealing with posix operating systems
#ifndef _WIN32
#include <termios.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#include <sys/time.h>
#include <errno.h>

typedef struct termios term_info;
typedef struct {
  int fd;           // Serial port file descriptor
  term_info tiOld;  // Terminal info before using the port
  term_info tiNew;  // Terminal info during the transaction
} serial_port_unix;

// Set time-out on 30 miliseconds
const struct timeval timeout = {
  .tv_sec  =     0, // 0 second
  .tv_usec = 30000  // 30000 micro seconds
};

serial_port uart_open(const char* pcPortName)
{
  serial_port_unix* sp = malloc(sizeof(serial_port_unix));
  if (sp == 0) return INVALID_SERIAL_PORT;
  
  sp->fd = open(pcPortName, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK);
  if(sp->fd == -1) {
    uart_close(sp);
    return INVALID_SERIAL_PORT;
  }

  // Finally figured out a way to claim a serial port interface under unix
  // We just try to set a (advisory) lock on the file descriptor
  struct flock fl;
  fl.l_type   = F_WRLCK;
  fl.l_whence = SEEK_SET;
  fl.l_start  = 0;
  fl.l_len    = 0;
  fl.l_pid    = getpid();
  
  // Does the system allows us to place a lock on this file descriptor
  if (fcntl(sp->fd, F_SETLK, &fl) == -1) {
    // A conflicting lock is held by another process
    free(sp);
    return CLAIMED_SERIAL_PORT;
  }

  // Try to retrieve the old (current) terminal info struct
  if(tcgetattr(sp->fd,&sp->tiOld) == -1) {
    uart_close(sp);
    return INVALID_SERIAL_PORT;
  }
  
  // Duplicate the (old) terminal info struct
  sp->tiNew = sp->tiOld;
  
  // Configure the serial port
  sp->tiNew.c_cflag = CS8 | CLOCAL | CREAD;
  sp->tiNew.c_iflag = IGNPAR;
  sp->tiNew.c_oflag = 0;
  sp->tiNew.c_lflag = 0;
    
  // Block until n bytes are received
  sp->tiNew.c_cc[VMIN] = 0;
  // Block until a timer expires (n * 100 mSec.)
  sp->tiNew.c_cc[VTIME] = 0;
  
  // Try to set the new terminal info struct
  if(tcsetattr(sp->fd,TCSANOW,&sp->tiNew) == -1) {
    uart_close(sp);
    return INVALID_SERIAL_PORT;
  }
  
  // Flush all lingering data that may exist
  tcflush(sp->fd, TCIOFLUSH);

  return sp;
}

void uart_close(const serial_port sp) {
  serial_port_unix* spu = (serial_port_unix*)sp;
  tcflush(spu->fd,TCIOFLUSH);
  tcsetattr(spu->fd,TCSANOW,&(spu->tiOld));
  struct flock fl;
  fl.l_type   = F_UNLCK;
  fl.l_whence = SEEK_SET;
  fl.l_start  = 0;
  fl.l_len    = 0;
  fl.l_pid    = getpid();
  fcntl(spu->fd, F_SETLK, &fl);
  close(spu->fd);
  free(sp);
}

bool uart_receive(const serial_port sp, uint8_t* pbtRx, size_t pszMaxRxLen, size_t* pszRxLen) {
  int res;
  int byteCount;
  fd_set rfds;
  struct timeval tv;
  
  // Reset the output count
  *pszRxLen = 0;
  
  do {
    // Reset file descriptor
    FD_ZERO(&rfds);
    FD_SET(((serial_port_unix*)sp)->fd,&rfds);
    tv = timeout;
    res = select(((serial_port_unix*)sp)->fd+1, &rfds, NULL, NULL, &tv);
    
    // Read error
    if (res < 0) {
      return false;
    }
 
    // Read time-out
    if (res == 0) {
      if (*pszRxLen == 0) {
        // Error, we received no data
        return false;
      } else {
        // We received some data, but nothing more is available
        return true;
      }
    }
 
    // Retrieve the count of the incoming bytes
    res = ioctl(((serial_port_unix*)sp)->fd, FIONREAD, &byteCount);
    if (res < 0) return false;
    
    // Cap the number of bytes, so we don't overrun the buffer
    if (pszMaxRxLen - (*pszRxLen) < byteCount) {
    	byteCount = pszMaxRxLen - (*pszRxLen);
    }

    // There is something available, read the data
    res = read(((serial_port_unix*)sp)->fd, pbtRx+(*pszRxLen), byteCount);

    // Stop if the OS has some troubles reading the data
    if (res <= 0) return false;
 
    *pszRxLen += res;

    if (*pszRxLen == pszMaxRxLen) {
    	// We have all the data we wanted.
      return true;
    }
    
  } while (byteCount);

  return true;
}

bool uart_send(const serial_port sp, const uint8_t* pbtTx, const size_t szTxLen) {
  int32_t res;
  size_t szPos = 0;
  fd_set rfds;
  struct timeval tv;
  
  while (szPos < szTxLen) {
    // Reset file descriptor
    FD_ZERO(&rfds);
    FD_SET(((serial_port_unix*)sp)->fd,&rfds);
    tv = timeout;
    res = select(((serial_port_unix*)sp)->fd+1, NULL, &rfds, NULL, &tv);
    
    // Write error
    if (res < 0) {
      return false;
    }
    
    // Write time-out
    if (res == 0) {
      return false;
    }
    
    // Send away the bytes
    res = write(((serial_port_unix*)sp)->fd,pbtTx+szPos,szTxLen-szPos);
    
    // Stop if the OS has some troubles sending the data
    if (res <= 0) return false;
    
    szPos += res;
  }
  return true;
}

bool uart_set_speed(serial_port sp, const uint32_t uiPortSpeed) {
  const serial_port_unix* spu = (serial_port_unix*)sp;
  speed_t stPortSpeed;
  switch (uiPortSpeed) {
    case 0: stPortSpeed = B0; break;
    case 50: stPortSpeed = B50; break;
    case 75: stPortSpeed = B75; break;
    case 110: stPortSpeed = B110; break;
    case 134: stPortSpeed = B134; break;
    case 150: stPortSpeed = B150; break;
    case 300: stPortSpeed = B300; break;
    case 600: stPortSpeed = B600; break;
    case 1200: stPortSpeed = B1200; break;
    case 1800: stPortSpeed = B1800; break;
    case 2400: stPortSpeed = B2400; break;
    case 4800: stPortSpeed = B4800; break;
    case 9600: stPortSpeed = B9600; break;
    case 19200: stPortSpeed = B19200; break;
    case 38400: stPortSpeed = B38400; break;
#  ifdef B57600
    case 57600: stPortSpeed = B57600; break;
#  endif
#  ifdef B115200
    case 115200: stPortSpeed = B115200; break;
#  endif
#  ifdef B230400
    case 230400: stPortSpeed = B230400; break;
#  endif
#  ifdef B460800
    case 460800: stPortSpeed = B460800; break;
#  endif
#  ifdef B921600
    case 921600: stPortSpeed = B921600; break;
#  endif
    default: return false;
  };
  struct termios ti;
  if (tcgetattr(spu->fd,&ti) == -1) return false;
  // Set port speed (Input and Output)
  cfsetispeed(&ti,stPortSpeed);
  cfsetospeed(&ti,stPortSpeed);
  return (tcsetattr(spu->fd,TCSANOW,&ti) != -1);
}

uint32_t uart_get_speed(const serial_port sp) {
  struct termios ti;
  uint32_t uiPortSpeed;
  const serial_port_unix* spu = (serial_port_unix*)sp;
  if (tcgetattr(spu->fd,&ti) == -1) return 0;
  // Set port speed (Input)
  speed_t stPortSpeed = cfgetispeed(&ti);
  switch (stPortSpeed) {
    case B0: uiPortSpeed = 0; break;
    case B50: uiPortSpeed = 50; break;
    case B75: uiPortSpeed = 75; break;
    case B110: uiPortSpeed = 110; break;
    case B134: uiPortSpeed = 134; break;
    case B150: uiPortSpeed = 150; break;
    case B300: uiPortSpeed = 300; break;
    case B600: uiPortSpeed = 600; break;
    case B1200: uiPortSpeed = 1200; break;
    case B1800: uiPortSpeed = 1800; break;
    case B2400: uiPortSpeed = 2400; break;
    case B4800: uiPortSpeed = 4800; break;
    case B9600: uiPortSpeed = 9600; break;
    case B19200: uiPortSpeed = 19200; break;
    case B38400: uiPortSpeed = 38400; break;
#  ifdef B57600
    case B57600: uiPortSpeed = 57600; break;
#  endif
#  ifdef B115200
    case B115200: uiPortSpeed = 115200; break;
#  endif
#  ifdef B230400
    case B230400: uiPortSpeed = 230400; break;
#  endif
#  ifdef B460800
    case B460800: uiPortSpeed = 460800; break;
#  endif
#  ifdef B921600
    case B921600: uiPortSpeed = 921600; break;
#  endif
    default: return 0;
  };
  return uiPortSpeed;
}

#endif
Commit	Line	Data
5bcc76c4	1	/*
13dbdd6b	2	* Generic uart / rs232/ serial port library
5bcc76c4	3	*
13dbdd6b	4	* Copyright (c) 2013, Roel Verdult
5bcc76c4	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions are met:
	9	* 1. Redistributions of source code must retain the above copyright
	10	* notice, this list of conditions and the following disclaimer.
	11	* 2. Redistributions in binary form must reproduce the above copyright
	12	* notice, this list of conditions and the following disclaimer in the
	13	* documentation and/or other materials provided with the distribution.
	14	* 3. Neither the name of the copyright holders nor the
	15	* names of its contributors may be used to endorse or promote products
	16	* derived from this software without specific prior written permission.
	17	*
	18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
	19	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	20	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	21	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
	22	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	23	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	24	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	25	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	27	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	28	*
067bfc8b	29	* @file uart_posix.c
5bcc76c4	30	*
067bfc8b MF	31	* This version of the library has functionality removed which was not used by
067bfc8b MF	32	* proxmark3 project.
5bcc76c4	33	*/
	34
	35	#include "uart.h"
5bcc76c4	36
067bfc8b	37	// Test if we are dealing with posix operating systems
5bcc76c4	38	#ifndef _WIN32
5bcc76c4	39	#include <termios.h>
067bfc8b MF	40	#include <sys/ioctl.h>
	41	#include <unistd.h>
	42	#include <fcntl.h>
	43	#include <sys/types.h>
	44	#include <sys/stat.h>
	45	#include <limits.h>
	46	#include <sys/time.h>
	47	#include <errno.h>
	48
5bcc76c4	49	typedef struct termios term_info;
	50	typedef struct {
	51	int fd; // Serial port file descriptor
	52	term_info tiOld; // Terminal info before using the port
	53	term_info tiNew; // Terminal info during the transaction
	54	} serial_port_unix;
	55
	56	// Set time-out on 30 miliseconds
13dbdd6b	57	const struct timeval timeout = {
5bcc76c4	58	.tv_sec = 0, // 0 second
	59	.tv_usec = 30000 // 30000 micro seconds
	60	};
	61
5bcc76c4	62	serial_port uart_open(const char* pcPortName)
	63	{
	64	serial_port_unix* sp = malloc(sizeof(serial_port_unix));
5bcc76c4	65	if (sp == 0) return INVALID_SERIAL_PORT;
13dbdd6b	66
5bcc76c4	67	sp->fd = open(pcPortName, O_RDWR \| O_NOCTTY \| O_NDELAY \| O_NONBLOCK);
62ee4fed	68	if(sp->fd == -1) {
5bcc76c4	69	uart_close(sp);
	70	return INVALID_SERIAL_PORT;
	71	}
62ee4fed	72
	73	// Finally figured out a way to claim a serial port interface under unix
	74	// We just try to set a (advisory) lock on the file descriptor
	75	struct flock fl;
	76	fl.l_type = F_WRLCK;
	77	fl.l_whence = SEEK_SET;
	78	fl.l_start = 0;
	79	fl.l_len = 0;
	80	fl.l_pid = getpid();
13dbdd6b	81
62ee4fed	82	// Does the system allows us to place a lock on this file descriptor
	83	if (fcntl(sp->fd, F_SETLK, &fl) == -1) {
	84	// A conflicting lock is held by another process
ca4714cd	85	free(sp);
62ee4fed	86	return CLAIMED_SERIAL_PORT;
5bcc76c4	87	}
62ee4fed	88
	89	// Try to retrieve the old (current) terminal info struct
	90	if(tcgetattr(sp->fd,&sp->tiOld) == -1) {
5bcc76c4	91	uart_close(sp);
62ee4fed	92	return INVALID_SERIAL_PORT;
5bcc76c4	93	}
13dbdd6b	94
62ee4fed	95	// Duplicate the (old) terminal info struct
5bcc76c4	96	sp->tiNew = sp->tiOld;
13dbdd6b	97
62ee4fed	98	// Configure the serial port
5bcc76c4	99	sp->tiNew.c_cflag = CS8 \| CLOCAL \| CREAD;
62ee4fed	100	sp->tiNew.c_iflag = IGNPAR;
5bcc76c4	101	sp->tiNew.c_oflag = 0;
5bcc76c4	102	sp->tiNew.c_lflag = 0;
62ee4fed	103
	104	// Block until n bytes are received
	105	sp->tiNew.c_cc[VMIN] = 0;
	106	// Block until a timer expires (n * 100 mSec.)
	107	sp->tiNew.c_cc[VTIME] = 0;
0a24369c	108
62ee4fed	109	// Try to set the new terminal info struct
62ee4fed	110	if(tcsetattr(sp->fd,TCSANOW,&sp->tiNew) == -1) {
5bcc76c4	111	uart_close(sp);
	112	return INVALID_SERIAL_PORT;
	113	}
13dbdd6b	114
62ee4fed	115	// Flush all lingering data that may exist
0a24369c	116	tcflush(sp->fd, TCIOFLUSH);
62ee4fed	117
5bcc76c4	118	return sp;
	119	}
	120
62ee4fed	121	void uart_close(const serial_port sp) {
	122	serial_port_unix* spu = (serial_port_unix*)sp;
	123	tcflush(spu->fd,TCIOFLUSH);
	124	tcsetattr(spu->fd,TCSANOW,&(spu->tiOld));
	125	struct flock fl;
	126	fl.l_type = F_UNLCK;
	127	fl.l_whence = SEEK_SET;
	128	fl.l_start = 0;
	129	fl.l_len = 0;
	130	fl.l_pid = getpid();
	131	fcntl(spu->fd, F_SETLK, &fl);
	132	close(spu->fd);
	133	free(sp);
	134	}
	135
f5ecd97b	136	bool uart_receive(const serial_port sp, uint8_t* pbtRx, size_t pszMaxRxLen, size_t* pszRxLen) {
5bcc76c4	137	int res;
	138	int byteCount;
	139	fd_set rfds;
	140	struct timeval tv;
13dbdd6b	141
13dbdd6b	142	// Reset the output count
5bcc76c4	143	*pszRxLen = 0;
13dbdd6b	144
5bcc76c4	145	do {
	146	// Reset file descriptor
	147	FD_ZERO(&rfds);
	148	FD_SET(((serial_port_unix*)sp)->fd,&rfds);
	149	tv = timeout;
	150	res = select(((serial_port_unix*)sp)->fd+1, &rfds, NULL, NULL, &tv);
13dbdd6b	151
5bcc76c4	152	// Read error
5bcc76c4	153	if (res < 0) {
5bcc76c4	154	return false;
5bcc76c4	155	}
babfcaa0	156
5bcc76c4	157	// Read time-out
	158	if (res == 0) {
	159	if (*pszRxLen == 0) {
	160	// Error, we received no data
5bcc76c4	161	return false;
	162	} else {
	163	// We received some data, but nothing more is available
	164	return true;
	165	}
	166	}
babfcaa0	167
5bcc76c4	168	// Retrieve the count of the incoming bytes
	169	res = ioctl(((serial_port_unix*)sp)->fd, FIONREAD, &byteCount);
	170	if (res < 0) return false;
067bfc8b MF	171
	172	// Cap the number of bytes, so we don't overrun the buffer
	173	if (pszMaxRxLen - (*pszRxLen) < byteCount) {
	174	byteCount = pszMaxRxLen - (*pszRxLen);
	175	}
babfcaa0	176
5bcc76c4	177	// There is something available, read the data
067bfc8b	178	res = read(((serial_port_unix)sp)->fd, pbtRx+(pszRxLen), byteCount);
babfcaa0	179
5bcc76c4	180	// Stop if the OS has some troubles reading the data
5bcc76c4	181	if (res <= 0) return false;
babfcaa0	182
5bcc76c4	183	*pszRxLen += res;
babfcaa0	184
067bfc8b MF	185	if (*pszRxLen == pszMaxRxLen) {
	186	// We have all the data we wanted.
	187	return true;
	188	}
13dbdd6b	189
5bcc76c4	190	} while (byteCount);
babfcaa0	191
5bcc76c4	192	return true;
	193	}
	194
f5ecd97b	195	bool uart_send(const serial_port sp, const uint8_t* pbtTx, const size_t szTxLen) {
5bcc76c4	196	int32_t res;
	197	size_t szPos = 0;
	198	fd_set rfds;
	199	struct timeval tv;
13dbdd6b	200
62ee4fed	201	while (szPos < szTxLen) {
5bcc76c4	202	// Reset file descriptor
	203	FD_ZERO(&rfds);
	204	FD_SET(((serial_port_unix*)sp)->fd,&rfds);
	205	tv = timeout;
	206	res = select(((serial_port_unix*)sp)->fd+1, NULL, &rfds, NULL, &tv);
13dbdd6b	207
5bcc76c4	208	// Write error
5bcc76c4	209	if (res < 0) {
5bcc76c4	210	return false;
5bcc76c4	211	}
13dbdd6b	212
5bcc76c4	213	// Write time-out
5bcc76c4	214	if (res == 0) {
5bcc76c4	215	return false;
5bcc76c4	216	}
13dbdd6b	217
5bcc76c4	218	// Send away the bytes
	219	res = write(((serial_port_unix*)sp)->fd,pbtTx+szPos,szTxLen-szPos);
	220
	221	// Stop if the OS has some troubles sending the data
	222	if (res <= 0) return false;
13dbdd6b	223
5bcc76c4	224	szPos += res;
	225	}
	226	return true;
	227	}
	228
13dbdd6b	229	bool uart_set_speed(serial_port sp, const uint32_t uiPortSpeed) {
067bfc8b MF	230	const serial_port_unix* spu = (serial_port_unix*)sp;
	231	speed_t stPortSpeed;
	232	switch (uiPortSpeed) {
	233	case 0: stPortSpeed = B0; break;
	234	case 50: stPortSpeed = B50; break;
	235	case 75: stPortSpeed = B75; break;
	236	case 110: stPortSpeed = B110; break;
	237	case 134: stPortSpeed = B134; break;
	238	case 150: stPortSpeed = B150; break;
	239	case 300: stPortSpeed = B300; break;
	240	case 600: stPortSpeed = B600; break;
	241	case 1200: stPortSpeed = B1200; break;
	242	case 1800: stPortSpeed = B1800; break;
	243	case 2400: stPortSpeed = B2400; break;
	244	case 4800: stPortSpeed = B4800; break;
	245	case 9600: stPortSpeed = B9600; break;
	246	case 19200: stPortSpeed = B19200; break;
	247	case 38400: stPortSpeed = B38400; break;
	248	# ifdef B57600
	249	case 57600: stPortSpeed = B57600; break;
	250	# endif
	251	# ifdef B115200
	252	case 115200: stPortSpeed = B115200; break;
	253	# endif
	254	# ifdef B230400
	255	case 230400: stPortSpeed = B230400; break;
	256	# endif
	257	# ifdef B460800
	258	case 460800: stPortSpeed = B460800; break;
	259	# endif
	260	# ifdef B921600
	261	case 921600: stPortSpeed = B921600; break;
	262	# endif
	263	default: return false;
	264	};
	265	struct termios ti;
	266	if (tcgetattr(spu->fd,&ti) == -1) return false;
	267	// Set port speed (Input and Output)
	268	cfsetispeed(&ti,stPortSpeed);
	269	cfsetospeed(&ti,stPortSpeed);
	270	return (tcsetattr(spu->fd,TCSANOW,&ti) != -1);
5bcc76c4	271	}
5bcc76c4	272
13dbdd6b	273	uint32_t uart_get_speed(const serial_port sp) {
067bfc8b MF	274	struct termios ti;
	275	uint32_t uiPortSpeed;
	276	const serial_port_unix* spu = (serial_port_unix*)sp;
	277	if (tcgetattr(spu->fd,&ti) == -1) return 0;
	278	// Set port speed (Input)
	279	speed_t stPortSpeed = cfgetispeed(&ti);
	280	switch (stPortSpeed) {
	281	case B0: uiPortSpeed = 0; break;
	282	case B50: uiPortSpeed = 50; break;
	283	case B75: uiPortSpeed = 75; break;
	284	case B110: uiPortSpeed = 110; break;
	285	case B134: uiPortSpeed = 134; break;
	286	case B150: uiPortSpeed = 150; break;
	287	case B300: uiPortSpeed = 300; break;
	288	case B600: uiPortSpeed = 600; break;
	289	case B1200: uiPortSpeed = 1200; break;
	290	case B1800: uiPortSpeed = 1800; break;
	291	case B2400: uiPortSpeed = 2400; break;
	292	case B4800: uiPortSpeed = 4800; break;
	293	case B9600: uiPortSpeed = 9600; break;
	294	case B19200: uiPortSpeed = 19200; break;
	295	case B38400: uiPortSpeed = 38400; break;
	296	# ifdef B57600
	297	case B57600: uiPortSpeed = 57600; break;
	298	# endif
	299	# ifdef B115200
	300	case B115200: uiPortSpeed = 115200; break;
	301	# endif
	302	# ifdef B230400
	303	case B230400: uiPortSpeed = 230400; break;
	304	# endif
	305	# ifdef B460800
	306	case B460800: uiPortSpeed = 460800; break;
	307	# endif
	308	# ifdef B921600
	309	case B921600: uiPortSpeed = 921600; break;
	310	# endif
	311	default: return 0;
	312	};
	313	return uiPortSpeed;
5bcc76c4	314	}
	315
	316	#endif
067bfc8b	317