X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/7afa751a9673c0427d75116eac14dce2d19adedb..refs/pull/910/head:/uart/uart_posix.c?ds=inline
diff --git a/uart/uart_posix.c b/uart/uart_posix.c
old mode 100644
new mode 100755
index 214cb56a..f6e6519d
--- a/uart/uart_posix.c
+++ b/uart/uart_posix.c
@@ -1,385 +1,370 @@
-/*
- * Generic uart / rs232/ serial port library
- *
- * Copyright (c) 2013, Roel Verdult
- * Copyright (c) 2018 Google
- * 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.
- */
-
-// Test if we are dealing with posix operating systems
-#ifndef _WIN32
-#define _DEFAULT_SOURCE
-
-#include "uart.h"
-
-#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>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-// Fix missing definition on OS X.
-// Taken from https://github.com/unbit/uwsgi/commit/b608eb1772641d525bfde268fe9d6d8d0d5efde7
-#ifndef SOL_TCP
-#define SOL_TCP IPPROTO_TCP
-#endif
-
-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
-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;
-
- if (memcmp(pcPortName, "tcp:", 4) == 0) {
- struct addrinfo *addr, *rp;
- char *addrstr = strdup(pcPortName + 4);
- if (addrstr == NULL) {
- printf("Error: strdup\n");
- return INVALID_SERIAL_PORT;
- }
- char *colon = strrchr(addrstr, ':');
- char *portstr;
-
- // Set time-out to 300 miliseconds only for TCP port
- timeout.tv_usec = 300000;
-
- if (colon) {
- portstr = colon + 1;
- *colon = '\0';
- } else
- portstr = "7901";
-
- int s = getaddrinfo(addrstr, portstr, NULL, &addr);
- if (s != 0) {
- printf("Error: getaddrinfo: %s\n", gai_strerror(s));
- return INVALID_SERIAL_PORT;
- }
-
- int sfd;
- for (rp = addr; rp != NULL; rp = rp->ai_next) {
- sfd = socket(rp->ai_family, rp->ai_socktype,
- rp->ai_protocol);
- if (sfd == -1)
- continue;
-
- if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1)
- break;
-
- close(sfd);
- }
-
- if (rp == NULL) { /* No address succeeded */
- printf("Error: Could not connect\n");
- return INVALID_SERIAL_PORT;
- }
-
- freeaddrinfo(addr);
- free(addrstr);
-
- sp->fd = sfd;
-
- int one = 1;
- setsockopt(sp->fd, SOL_TCP, TCP_NODELAY, &one, sizeof(one));
- return sp;
- }
-
- 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
-
+/*
+ * Generic uart / rs232/ serial port library
+ *
+ * Copyright (c) 2013, Roel Verdult
+ * Copyright (c) 2018 Google
+ * 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.
+ */
+
+// Test if we are dealing with posix operating systems
+#ifndef _WIN32
+#define _DEFAULT_SOURCE
+
+#include "uart.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <sys/time.h>
+#include <errno.h>
+
+// Fix missing definition on OS X.
+// Taken from https://github.com/unbit/uwsgi/commit/b608eb1772641d525bfde268fe9d6d8d0d5efde7
+#ifndef SOL_TCP
+#define SOL_TCP IPPROTO_TCP
+#endif
+
+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
+static struct timeval timeout = {
+ .tv_sec = 0, // 0 second
+ .tv_usec = 30000 // 30000 micro seconds
+};
+
+
+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);
+}
+
+
+serial_port uart_open(const char* pcPortName) {
+
+ serial_port_unix* sp = malloc(sizeof(serial_port_unix));
+ if (sp == 0) return INVALID_SERIAL_PORT;
+
+ if (memcmp(pcPortName, "tcp:", 4) == 0) {
+ struct addrinfo *addr = NULL, *rp;
+ char *addrstr = strdup(pcPortName + 4);
+ if (addrstr == NULL) {
+ printf("Error: strdup\n");
+ return INVALID_SERIAL_PORT;
+ }
+ char *colon = strrchr(addrstr, ':');
+ char *portstr;
+
+ // Set time-out to 300 milliseconds only for TCP port
+ timeout.tv_usec = 300000;
+
+ if (colon) {
+ portstr = colon + 1;
+ *colon = '\0';
+ } else {
+ portstr = "7901";
+ }
+
+ struct addrinfo info;
+
+ memset(&info, 0, sizeof(info));
+
+ info.ai_socktype = SOCK_STREAM;
+
+ int s = getaddrinfo(addrstr, portstr, &info, &addr);
+ if (s != 0) {
+ printf("Error: getaddrinfo: %s\n", gai_strerror(s));
+ return INVALID_SERIAL_PORT;
+ }
+
+ int sfd;
+ for (rp = addr; rp != NULL; rp = rp->ai_next) {
+ sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+ if (sfd == -1)
+ continue;
+ if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1)
+ break;
+ close(sfd);
+ }
+
+ if (rp == NULL) { /* No address succeeded */
+ printf("Error: Could not connect\n");
+ return INVALID_SERIAL_PORT;
+ }
+
+ freeaddrinfo(addr);
+ free(addrstr);
+
+ sp->fd = sfd;
+
+ int one = 1;
+ setsockopt(sp->fd, SOL_TCP, TCP_NODELAY, &one, sizeof(one));
+ return sp;
+ }
+
+ 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 &= ~(CSIZE | PARENB);
+ sp->tiNew.c_cflag |= (CS8 | CLOCAL | CREAD);
+ sp->tiNew.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
+ sp->tiNew.c_iflag |= IGNPAR;
+ sp->tiNew.c_oflag &= ~OPOST;
+ sp->tiNew.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+
+
+ // 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;
+}
+
+
+bool uart_receive(const serial_port sp, uint8_t* pbtRx, size_t szMaxRxLen, size_t* pszRxLen) {
+
+ *pszRxLen = 0;
+
+ if (szMaxRxLen == 0) return true;
+
+ struct timeval t_current;
+ gettimeofday(&t_current, NULL);
+ struct timeval t_end;
+ timeradd(&t_current, &timeout, &t_end);
+
+ while (true) {
+ int res = read(((serial_port_unix*)sp)->fd, pbtRx, szMaxRxLen - *pszRxLen);
+ if (res < 0 && errno != EAGAIN && errno != EWOULDBLOCK) return false;
+ if (res > 0) {
+ *pszRxLen += res;
+ pbtRx += res;
+ }
+ if (*pszRxLen == szMaxRxLen) return true; // we could read all requested bytes in time
+ gettimeofday(&t_current, NULL);
+ if (timercmp(&t_current, &t_end, >)) return true; // timeout
+ // set next select timeout
+ struct timeval t_remains;
+ timersub(&t_end, &t_current, &t_remains);
+ // Set the file descriptor set
+ fd_set rfds;
+ FD_ZERO(&rfds);
+ FD_SET(((serial_port_unix*)sp)->fd, &rfds);
+ // wait for more bytes available
+ res = select(((serial_port_unix*)sp)->fd+1, &rfds, NULL, NULL, &t_remains);
+ if (res < 0) return false;
+ if (res == 0) return true; // timeout
+ }
+ return true; // should never come here
+}
+
+
+bool uart_send(const serial_port sp, const uint8_t* pbtTx, const size_t szTxLen) {
+
+ if (szTxLen == 0) return true;
+
+ size_t bytes_written = 0;
+
+ struct timeval t_current;
+ gettimeofday(&t_current, NULL);
+ struct timeval t_end;
+ timeradd(&t_current, &timeout, &t_end);
+
+ while (true) {
+ int res = write(((serial_port_unix*)sp)->fd, pbtTx, szTxLen - bytes_written);
+ if (res < 0 && res != EAGAIN && res != EWOULDBLOCK) return false;
+ if (res > 0) {
+ pbtTx += res;
+ bytes_written += res;
+ }
+ if (bytes_written == szTxLen) return true; // we could write all bytes
+ gettimeofday(&t_current, NULL);
+ if (timercmp(&t_current, &t_end, >)) return false; // timeout
+ // set next select timeout
+ struct timeval t_remains;
+ timersub(&t_end, &t_current, &t_remains);
+ // Set the file descriptor set
+ fd_set wfds;
+ FD_ZERO(&wfds);
+ FD_SET(((serial_port_unix*)sp)->fd, &wfds);
+ // wait until more bytes can be written
+ res = select(((serial_port_unix*)sp)->fd+1, NULL, &wfds, NULL, &t_remains);
+ if (res < 0) return false; // error
+ if (res == 0) return false; // timeout
+ }
+ 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