abf34e5d5a
Gregory Nutt is the copyright holder for those files and he has submitted the SGA as a result we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/****************************************************************************
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* apps/examples/serialblaster/serialblaster_main.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <nuttx/clock.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/arch.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define BUFFERED_IO
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const char s[] = "abcdefghijklmnopqrstuvwxyz";
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* serialblaster_main
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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int ret;
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int fd;
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FAR char *devpath;
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int size = 0;
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int rem;
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if (argc == 1)
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{
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devpath = CONFIG_EXAMPLES_SERIALBLASTER_DEVPATH;
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}
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else if (argc == 2)
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{
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devpath = argv[1];
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}
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else if (argc == 3)
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{
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devpath = argv[1];
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size = strtol(argv[2], NULL, 10);
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}
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else
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{
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fprintf(stderr, "Usage: %s [devpath]\n", argv[0]);
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goto errout;
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}
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fd = open(devpath, O_RDWR);
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if (fd < 0)
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{
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printf("dev_ttyS2: ERROR Failed to open /dev/ttyS2\n");
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return -1;
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}
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rem = size;
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while (size > sizeof(s))
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{
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if (rem > 26)
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{
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ret = write(fd, s, (sizeof(s)-1));
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}
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rem = rem - 26;
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if (rem < 26)
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{
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ret = write(fd, s, rem);
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}
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size = size - 26;
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UNUSED(ret);
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}
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up_udelay(5000000);
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close(fd);
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return 0;
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errout:
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fflush(stderr);
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return EXIT_FAILURE;
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}
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