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Diffstat (limited to 'nuttx/examples/usbserial/host.c')
| -rw-r--r-- | nuttx/examples/usbserial/host.c | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/nuttx/examples/usbserial/host.c b/nuttx/examples/usbserial/host.c deleted file mode 100644 index 751b7530c..000000000 --- a/nuttx/examples/usbserial/host.c +++ /dev/null @@ -1,293 +0,0 @@ -/**************************************************************************** - * examples/usbserial/host.c - * - * Copyright (C) 2008 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> - * - * 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 NuttX 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 AND CONTRIBUTORS - * "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 OWNER OR CONTRIBUTORS 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. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <stdio.h> - -#include <sys/types.h> -#include <sys/stat.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include <termios.h> -#include <fcntl.h> -#include <errno.h> - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -#if defined(CONFIG_EXAMPLES_USBSERIAL_INONLY) && defined(CONFIG_EXAMPLES_USBSERIAL_OUTONLY) -# error "Cannot define both CONFIG_EXAMPLES_USBSERIAL_INONLY and _OUTONLY" -#endif -#if defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) && defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) -# error "Cannot define both CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL and _ONLYBIG" -#endif - -#if !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) && !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) -# ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY -# define COUNTER_NEEDED 1 -# endif -#endif - -#define DEFAULT_TTYDEV "/dev/ttyUSB0" -#define BUFFER_SIZE 1024 - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -static const char *g_ttydev = DEFAULT_TTYDEV; - -#ifndef CONFIG_EXAMPLES_USBSERIAL_ONLYBIG -static const char g_shortmsg[] = "Sure... You betcha!!\n"; -#endif - -#ifndef CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL -static const char g_longmsg[] = - "I am proud to come to this city as the guest of your distinguished Mayor, " - "who has symbolized throughout the world the fighting spirit of West Berlin. " - "And I am proud to visit the Federal Republic with your distinguished Chancellor " - "who for so many years has committed Germany to democracy and freedom and " - "progress, and to come here in the company of my fellow American, General Clay, " - "who has been in this city during its great moments of crisis and will come " - "again if ever needed.\n" - "Two thousand years ago the proudest boast was \"civis Romanus sum.\" Today, " - "in the world of freedom, the proudest boast is \"Ich bin ein Berliner.\"\r\"" - "I appreciate my interpreter translating my German!\n" - "There are many people in the world who really don't understand, or say they " - "don't, what is the great issue between the free world and the Communist world. " - "Let them come to Berlin. There are some who say that communism is the wave of " - "the future. Let them come to Berlin. And there are some who say in Europe and " - "elsewhere we can work with the Communists. Let them come to Berlin. And there " - "are even a few who say that it is true that communism is an evil system, but it " - "permits us to make economic progress. Lass' sie nach Berlin kommen. Let them " - "come to Berlin.\n" - "Freedom has many difficulties and democracy is not perfect, but we have never " - "had to put a wall up to keep our people in, to prevent them from leaving us. I " - "want to say, on behalf of my countrymen, who live many miles away on the other " - "side of the Atlantic, who are far distant from you, that they take the greatest " - "pride that they have been able to share with you, even from a distance, the " - "story of the last 18 years. I know of no town, no city, that has been besieged " - "for 18 years that still lives with the vitality and the force, and the hope and " - "the determination of the city of West Berlin. While the wall is the most obvious " - "and vivid demonstration of the failures of the Communist system, for all the " - "world to see, we take no satisfaction in it, for it is, as your Mayor has said, " - "an offense not only against history but an offense against humanity, separating " - "families, dividing husbands and wives and brothers and sisters, and dividing a " - "people who wish to be joined together.\n" - "What is true of this city is true of Germany--real, lasting peace in Europe can " - "never be assured as long as one German out of four is denied the elementary " - "right of free men, and that is to make a free choice. In 18 years of peace and " - "good faith, this generation of Germans has earned the right to be free, " - "including the right to unite their families and their nation in lasting peace, " - "with good will to all people. You live in a defended island of freedom, but " - "your life is part of the main. So let me ask you as I close, to lift your eyes " - "beyond the dangers of today, to the hopes of tomorrow, beyond the freedom merely " - "of this city of Berlin, or your country of Germany, to the advance of freedom " - "everywhere, beyond the wall to the day of peace with justice, beyond yourselves " - "and ourselves to all mankind.\n" - "Freedom is indivisible, and when one man is enslaved, all are not free. When all " - "are free, then we can look forward to that day when this city will be joined as " - "one and this country and this great Continent of Europe in a peaceful and hopeful " - "globe. When that day finally comes, as it will, the people of West Berlin can take " - "sober satisfaction in the fact that they were in the front lines for almost two " - "decades.\n" - "All free men, wherever they may live, are citizens of Berlin, and, therefore, " - "as a free man, I take pride in the words \"Ich bin ein Berliner.\"\n" - "President John F. Kennedy - June 26, 1963\n"; -#endif - -#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY -static char g_iobuffer[BUFFER_SIZE]; -#endif - -/**************************************************************************** - * show_usage - ****************************************************************************/ - -static void show_usage(const char *progname, int exitcode) -{ - fprintf(stderr, "USAGE: %s [<ttydev>]\n", progname); - exit(exitcode); -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * main - ****************************************************************************/ - -int main(int argc, char **argv, char **envp) -{ - struct termios tty; -#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY - ssize_t nbytes; -#endif -#ifdef COUNTER_NEEDED - int count = 0; -#endif - int fd; - int ret; - - /* Handle input parameters */ - - if (argc > 1) - { - if (argc > 2) - { - fprintf(stderr, "Too many arguments on command line\n"); - show_usage(argv[0], 1); - } - g_ttydev = argv[1]; - } - - /* Open the USB serial device for blocking read/write */ - - do - { - printf("main: Opening USB serial driver\n"); - fd = open(g_ttydev, O_RDWR); - if (fd < 0) - { - printf("main: ERROR: Failed to open %s: %s\n", g_ttydev, strerror(errno)); - printf("main: Assume not connected. Wait and try again.\n"); - printf("main: (Control-C to terminate).\n"); - sleep(5); - } - } - while (fd < 0); - printf("main: Successfully opened the serial driver\n"); - - /* Configure the serial port in raw mode (at least turn off echo) */ - - ret = tcgetattr(fd, &tty); - if (ret < 0) - { - printf("main: ERROR: Failed to get termios for %s: %s\n", g_ttydev, strerror(errno)); - close(fd); - return 1; - } - - tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); - tty.c_oflag &= ~OPOST; - tty.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); - tty.c_cflag &= ~(CSIZE|PARENB); - tty.c_cflag |= CS8; - - ret = tcsetattr(fd, TCSANOW, &tty); - if (ret < 0) - { - printf("main: ERROR: Failed to set termios for %s: %s\n", g_ttydev, strerror(errno)); - close(fd); - return 1; - } - - /* Wait for and/or send messages -- forever */ - - for (;;) - { - /* Test IN messages (device-to-host) */ - -#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY - printf("main: Reading from the serial driver\n"); - printf("main: ... (Control-C to terminate) ...\n"); - nbytes = read(fd, g_iobuffer, BUFFER_SIZE-1); - if (nbytes < 0) - { - printf("main: ERROR: Failed to read from %s: %s\n", g_ttydev, strerror(errno)); - close(fd); - return 2; - } - else if (nbytes == 0) - { - printf("main: End-of-file encountered\n"); - break; - } - - g_iobuffer[nbytes] = '\0'; - printf("main: Received %d bytes:\n", nbytes); - printf(" \"%s\"\n", g_iobuffer); -#else - printf("main: Waiting...\n"); - sleep(5); -#endif /* CONFIG_EXAMPLES_USBSERIAL_OUTONLY */ - - /* Test OUT messages (host-to-device) */ - -#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY -#if !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) && !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) - count++; - if (count < 5) - { - printf("main: Sending %d bytes..\n", sizeof(g_shortmsg)); - nbytes = write(fd, g_shortmsg, sizeof(g_shortmsg)); - } - else - { - printf("main: Sending %d bytes..\n", sizeof(g_longmsg)); - nbytes = write(fd, g_longmsg, sizeof(g_longmsg)); - count = 0; - } -#elif !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) - printf("main: Sending %d bytes..\n", sizeof(g_longmsg)); - nbytes = write(fd, g_longmsg, sizeof(g_longmsg)); -#else /* !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) */ - printf("main: Sending %d bytes..\n", sizeof(g_shortmsg)); - nbytes = write(fd, g_shortmsg, sizeof(g_shortmsg)); -#endif - - /* Test if write was successful */ - - if (nbytes < 0) - { - printf("main: ERROR: Failed to write to %s: %s\n", g_ttydev, strerror(errno)); - close(fd); - return 2; - } - printf("main: %d bytes sent\n", nbytes); -#endif /* CONFIG_EXAMPLES_USBSERIAL_INONLY */ - } - - close(fd); - return 0; -} - |