mirror of
https://github.com/Proxmark/proxmark3.git
synced 2025-07-05 20:51:18 -07:00
cleaning up uart_posix.c
* whitespace fixes * sorting out #includes
This commit is contained in:
pwpiwi
parent
ac37ee816b
commit
fd66752193
1 changed files with 389 additions and 391 deletions
780
uart/uart_posix.c
Normal file → Executable file
780
uart/uart_posix.c
Normal file → Executable file
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@ -1,391 +1,389 @@
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/*
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* Generic uart / rs232/ serial port library
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*
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* Copyright (c) 2013, Roel Verdult
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* Copyright (c) 2018 Google
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 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
|
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* documentation and/or other materials provided with the distribution.
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||||
* 3. Neither the name of the copyright holders nor the
|
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
|
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* 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;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @file uart_posix.c
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*
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* This version of the library has functionality removed which was not used by
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* proxmark3 project.
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*/
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// Test if we are dealing with posix operating systems
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#ifndef _WIN32
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#define _DEFAULT_SOURCE
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#include "uart.h"
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#include <termios.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <limits.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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// Fix missing definition on OS X.
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// Taken from https://github.com/unbit/uwsgi/commit/b608eb1772641d525bfde268fe9d6d8d0d5efde7
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#ifndef SOL_TCP
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#define SOL_TCP IPPROTO_TCP
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#endif
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typedef struct termios term_info;
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typedef struct {
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int fd; // Serial port file descriptor
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term_info tiOld; // Terminal info before using the port
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term_info tiNew; // Terminal info during the transaction
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} serial_port_unix;
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// Set time-out on 30 miliseconds
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struct timeval timeout = {
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.tv_sec = 0, // 0 second
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.tv_usec = 30000 // 30000 micro seconds
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};
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serial_port uart_open(const char* pcPortName)
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{
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serial_port_unix* sp = malloc(sizeof(serial_port_unix));
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if (sp == 0) return INVALID_SERIAL_PORT;
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if (memcmp(pcPortName, "tcp:", 4) == 0) {
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struct addrinfo *addr = NULL, *rp;
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char *addrstr = strdup(pcPortName + 4);
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if (addrstr == NULL) {
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printf("Error: strdup\n");
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return INVALID_SERIAL_PORT;
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}
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char *colon = strrchr(addrstr, ':');
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char *portstr;
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// Set time-out to 300 miliseconds only for TCP port
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timeout.tv_usec = 300000;
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if (colon) {
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portstr = colon + 1;
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*colon = '\0';
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} else
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portstr = "7901";
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struct addrinfo info;
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memset (&info, 0, sizeof(info));
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info.ai_socktype = SOCK_STREAM;
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int s = getaddrinfo(addrstr, portstr, &info, &addr);
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if (s != 0) {
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printf("Error: getaddrinfo: %s\n", gai_strerror(s));
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return INVALID_SERIAL_PORT;
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}
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int sfd;
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for (rp = addr; rp != NULL; rp = rp->ai_next) {
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sfd = socket(rp->ai_family, rp->ai_socktype,
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rp->ai_protocol);
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if (sfd == -1)
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continue;
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if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1)
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break;
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close(sfd);
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}
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if (rp == NULL) { /* No address succeeded */
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printf("Error: Could not connect\n");
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return INVALID_SERIAL_PORT;
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}
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freeaddrinfo(addr);
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free(addrstr);
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sp->fd = sfd;
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int one = 1;
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setsockopt(sp->fd, SOL_TCP, TCP_NODELAY, &one, sizeof(one));
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return sp;
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}
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sp->fd = open(pcPortName, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK);
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if(sp->fd == -1) {
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uart_close(sp);
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return INVALID_SERIAL_PORT;
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}
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// Finally figured out a way to claim a serial port interface under unix
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// We just try to set a (advisory) lock on the file descriptor
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struct flock fl;
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fl.l_type = F_WRLCK;
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fl.l_whence = SEEK_SET;
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fl.l_start = 0;
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fl.l_len = 0;
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fl.l_pid = getpid();
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// Does the system allows us to place a lock on this file descriptor
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if (fcntl(sp->fd, F_SETLK, &fl) == -1) {
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// A conflicting lock is held by another process
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free(sp);
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return CLAIMED_SERIAL_PORT;
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}
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// Try to retrieve the old (current) terminal info struct
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if(tcgetattr(sp->fd,&sp->tiOld) == -1) {
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uart_close(sp);
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return INVALID_SERIAL_PORT;
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}
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// Duplicate the (old) terminal info struct
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sp->tiNew = sp->tiOld;
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// Configure the serial port
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sp->tiNew.c_cflag = CS8 | CLOCAL | CREAD;
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sp->tiNew.c_iflag = IGNPAR;
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sp->tiNew.c_oflag = 0;
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sp->tiNew.c_lflag = 0;
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// Block until n bytes are received
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sp->tiNew.c_cc[VMIN] = 0;
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// Block until a timer expires (n * 100 mSec.)
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sp->tiNew.c_cc[VTIME] = 0;
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// Try to set the new terminal info struct
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if(tcsetattr(sp->fd,TCSANOW,&sp->tiNew) == -1) {
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uart_close(sp);
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return INVALID_SERIAL_PORT;
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}
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// Flush all lingering data that may exist
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tcflush(sp->fd, TCIOFLUSH);
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return sp;
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}
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void uart_close(const serial_port sp) {
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serial_port_unix* spu = (serial_port_unix*)sp;
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tcflush(spu->fd,TCIOFLUSH);
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tcsetattr(spu->fd,TCSANOW,&(spu->tiOld));
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struct flock fl;
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fl.l_type = F_UNLCK;
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fl.l_whence = SEEK_SET;
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fl.l_start = 0;
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fl.l_len = 0;
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fl.l_pid = getpid();
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fcntl(spu->fd, F_SETLK, &fl);
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close(spu->fd);
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free(sp);
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}
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bool uart_receive(const serial_port sp, uint8_t* pbtRx, size_t pszMaxRxLen, size_t* pszRxLen) {
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int res;
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int byteCount;
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fd_set rfds;
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struct timeval tv;
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// Reset the output count
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*pszRxLen = 0;
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do {
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// Reset file descriptor
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FD_ZERO(&rfds);
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FD_SET(((serial_port_unix*)sp)->fd,&rfds);
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tv = timeout;
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res = select(((serial_port_unix*)sp)->fd+1, &rfds, NULL, NULL, &tv);
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// Read error
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if (res < 0) {
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return false;
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}
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// Read time-out
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if (res == 0) {
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if (*pszRxLen == 0) {
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// Error, we received no data
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return false;
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} else {
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// We received some data, but nothing more is available
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return true;
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}
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}
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// Retrieve the count of the incoming bytes
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res = ioctl(((serial_port_unix*)sp)->fd, FIONREAD, &byteCount);
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if (res < 0) return false;
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// Cap the number of bytes, so we don't overrun the buffer
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if (pszMaxRxLen - (*pszRxLen) < byteCount) {
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byteCount = pszMaxRxLen - (*pszRxLen);
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}
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// There is something available, read the data
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res = read(((serial_port_unix*)sp)->fd, pbtRx+(*pszRxLen), byteCount);
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// Stop if the OS has some troubles reading the data
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if (res <= 0) return false;
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*pszRxLen += res;
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if (*pszRxLen == pszMaxRxLen) {
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// We have all the data we wanted.
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return true;
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}
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} while (byteCount);
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return true;
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}
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bool uart_send(const serial_port sp, const uint8_t* pbtTx, const size_t szTxLen) {
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int32_t res;
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size_t szPos = 0;
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fd_set rfds;
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struct timeval tv;
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while (szPos < szTxLen) {
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// Reset file descriptor
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FD_ZERO(&rfds);
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FD_SET(((serial_port_unix*)sp)->fd,&rfds);
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tv = timeout;
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res = select(((serial_port_unix*)sp)->fd+1, NULL, &rfds, NULL, &tv);
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// Write error
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if (res < 0) {
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return false;
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}
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// Write time-out
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if (res == 0) {
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return false;
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}
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// Send away the bytes
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res = write(((serial_port_unix*)sp)->fd,pbtTx+szPos,szTxLen-szPos);
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// Stop if the OS has some troubles sending the data
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if (res <= 0) return false;
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szPos += res;
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}
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return true;
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}
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bool uart_set_speed(serial_port sp, const uint32_t uiPortSpeed) {
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const serial_port_unix* spu = (serial_port_unix*)sp;
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speed_t stPortSpeed;
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switch (uiPortSpeed) {
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case 0: stPortSpeed = B0; break;
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case 50: stPortSpeed = B50; break;
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case 75: stPortSpeed = B75; break;
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case 110: stPortSpeed = B110; break;
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case 134: stPortSpeed = B134; break;
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case 150: stPortSpeed = B150; break;
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case 300: stPortSpeed = B300; break;
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case 600: stPortSpeed = B600; break;
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case 1200: stPortSpeed = B1200; break;
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case 1800: stPortSpeed = B1800; break;
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case 2400: stPortSpeed = B2400; break;
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case 4800: stPortSpeed = B4800; break;
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case 9600: stPortSpeed = B9600; break;
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case 19200: stPortSpeed = B19200; break;
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case 38400: stPortSpeed = B38400; break;
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# ifdef B57600
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case 57600: stPortSpeed = B57600; break;
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# endif
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# ifdef B115200
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case 115200: stPortSpeed = B115200; break;
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# endif
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# ifdef B230400
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case 230400: stPortSpeed = B230400; break;
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# endif
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# ifdef B460800
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case 460800: stPortSpeed = B460800; break;
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# endif
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# ifdef B921600
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case 921600: stPortSpeed = B921600; break;
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# endif
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default: return false;
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};
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struct termios ti;
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if (tcgetattr(spu->fd,&ti) == -1) return false;
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// Set port speed (Input and Output)
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cfsetispeed(&ti,stPortSpeed);
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cfsetospeed(&ti,stPortSpeed);
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return (tcsetattr(spu->fd,TCSANOW,&ti) != -1);
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}
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uint32_t uart_get_speed(const serial_port sp) {
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struct termios ti;
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uint32_t uiPortSpeed;
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const serial_port_unix* spu = (serial_port_unix*)sp;
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if (tcgetattr(spu->fd,&ti) == -1) return 0;
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// Set port speed (Input)
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speed_t stPortSpeed = cfgetispeed(&ti);
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switch (stPortSpeed) {
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case B0: uiPortSpeed = 0; break;
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case B50: uiPortSpeed = 50; break;
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case B75: uiPortSpeed = 75; break;
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case B110: uiPortSpeed = 110; break;
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case B134: uiPortSpeed = 134; break;
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case B150: uiPortSpeed = 150; break;
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case B300: uiPortSpeed = 300; break;
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case B600: uiPortSpeed = 600; break;
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case B1200: uiPortSpeed = 1200; break;
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case B1800: uiPortSpeed = 1800; break;
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case B2400: uiPortSpeed = 2400; break;
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case B4800: uiPortSpeed = 4800; break;
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case B9600: uiPortSpeed = 9600; break;
|
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case B19200: uiPortSpeed = 19200; break;
|
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case B38400: uiPortSpeed = 38400; break;
|
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# ifdef B57600
|
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case B57600: uiPortSpeed = 57600; break;
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# endif
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# ifdef B115200
|
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case B115200: uiPortSpeed = 115200; break;
|
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# endif
|
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# ifdef B230400
|
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case B230400: uiPortSpeed = 230400; break;
|
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# endif
|
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# ifdef B460800
|
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case B460800: uiPortSpeed = 460800; break;
|
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# endif
|
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# ifdef B921600
|
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case B921600: uiPortSpeed = 921600; break;
|
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# endif
|
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default: return 0;
|
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};
|
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return uiPortSpeed;
|
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}
|
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|
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#endif
|
||||
|
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/*
|
||||
* 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>
|
||||
|
||||
// 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 = 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;
|
||||
}
|
||||
|
||||
|
||||
bool uart_receive(const serial_port sp, uint8_t* pbtRx, size_t pszMaxRxLen, size_t* pszRxLen) {
|
||||
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;
|
||||
int 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) {
|
||||
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;
|
||||
int 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
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue