2ac8589a25
error: Path relative to repository other than nuttx must begin with the root directory Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
158 lines
4.0 KiB
C
158 lines
4.0 KiB
C
/****************************************************************************
|
|
* apps/examples/flowc/flowc_sender.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <termios.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include "flowc.h"
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
static char g_tty_devname[MAX_DEVNAME] =
|
|
CONFIG_EXAMPLES_FLOWC_SENDER_DEVNAME;
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
static inline void fill_buffer(FAR uint8_t *buf)
|
|
{
|
|
FAR uint8_t *ptr;
|
|
int ch;
|
|
|
|
for (ch = 0x20; ch < 0x7f; ch++)
|
|
{
|
|
*ptr++ = ch;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* flowc_cmdline
|
|
****************************************************************************/
|
|
|
|
static int flowc_cmdline(int argc, char **argv)
|
|
{
|
|
/* Currently only a single command line option is supported: The receiver
|
|
* IP address.
|
|
*/
|
|
|
|
if (argc == 2)
|
|
{
|
|
strncpy(g_tty_devname, argv[1], MAX_DEVNAME);
|
|
}
|
|
else if (argc != 1)
|
|
{
|
|
fprintf(stderr, "ERROR: Too many arguments\n");
|
|
fprintf(stderr, "USAGE: %s [<tty-devname>]\n", argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
int flowc_sender(int argc, char **argv)
|
|
{
|
|
uint8_t outbuf[SENDSIZE];
|
|
#ifdef CONFIG_EXAMPLES_FLOWC_OUTPUT
|
|
struct termios term;
|
|
#endif
|
|
ssize_t nsent;
|
|
int ret;
|
|
int fd;
|
|
int i;
|
|
|
|
/* Parse the command line */
|
|
|
|
ret = flowc_cmdline(argc, argv);
|
|
if (ret != 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/* Open the serial device */
|
|
|
|
fd = open(g_tty_devname, O_WRONLY);
|
|
if (fd < 0)
|
|
{
|
|
printf("sender ERROR: Failed to open %s: %d\n", g_tty_devname, errno);
|
|
return 1;
|
|
}
|
|
|
|
#ifdef CONFIG_EXAMPLES_FLOWC_OUTPUT
|
|
/* Set output flow control */
|
|
|
|
tcgetattr(fd, &term);
|
|
#ifdef CCTS_OFLOW
|
|
term.c_cflag |= CCTS_OFLOW;
|
|
#else
|
|
term.c_cflag |= CRTSCTS;
|
|
#endif
|
|
tcsetattr(fd, TCSANOW, &term);
|
|
#endif
|
|
|
|
/* Set up the output buffer */
|
|
|
|
fill_buffer(outbuf);
|
|
|
|
/* Then send the buffer multiple times as fast as possible */
|
|
|
|
for (i = 0; i < NSENDS; i++)
|
|
{
|
|
/* Send the message */
|
|
|
|
nsent = write(fd, outbuf, SENDSIZE);
|
|
if (nsent < 0)
|
|
{
|
|
printf("sender: %lu. write failed: %d\n",
|
|
(unsigned long)i*SENDSIZE, errno);
|
|
close(fd);
|
|
return 1;
|
|
}
|
|
else if (nsent != SENDSIZE)
|
|
{
|
|
printf("sender: %lu. Bad send length: %ld Expected: %d\n",
|
|
(unsigned long)i*SENDSIZE, (long)nsent, SENDSIZE);
|
|
close(fd);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
close(fd);
|
|
return 0;
|
|
}
|