sergiotarxz/nuttx
sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Extend USB serial test

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1017 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2008-10-09 20:25:33 +00:00
parent c9d3adb0b9
commit ebefecd9ac
3 changed files with 350 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
examples/usbserial/Makefile.host Normal file
View File

@ -0,0 +1,49 @@
############################################################################
# examples/usbserial/Makefile.host
#
# 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.
#
############################################################################
-include $(TOPDIR)/.config
-include $(TOPDIR)/Make.defs
SRC = host.c
BIN = host
all: $(BIN)$(EXEEXT)
$(BIN)$(EXEEXT): $(SRC)
$(HOSTCC) $(HOSTCFLAGS) $^ -o $@
clean:
@rm -f $(BIN) *~ .*.swp *.o
$(call CLEAN)

202
examples/usbserial/host.c Normal file
View File

@ -0,0 +1,202 @@
/****************************************************************************
* 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 <fcntl.h>
#include <errno.h>
/****************************************************************************
* Definitions
****************************************************************************/
#define DEFAULT_TTYDEV "/dev/ttyUSB0"
#define BUFFER_SIZE 1024
/****************************************************************************
* Private Data
****************************************************************************/
static const char *g_ttydev = DEFAULT_TTYDEV;
static char g_buffer[BUFFER_SIZE];
static const char g_outmsg[] =
"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";
/****************************************************************************
* 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)
{
ssize_t nbytes;
int fd;
/* 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");
/* Wait for hello... */
for (;;)
{
printf("main: Reading from the serial driver\n");
printf("main: ... (Control-C to terminate) ...\n");
nbytes = read(fd, g_buffer, BUFFER_SIZE-1);
if (nbytes < 0)
{
printf("main: ERROR: Failed to read from %s: %s\n", g_ttydev, strerror(errno));
close(fd);
return 2;
}
g_buffer[nbytes] = '\0';
printf("main: Received %d bytes:\n", nbytes);
printf(" \"%s\"\n", g_buffer);
printf("main: Sending %d bytes..\n", sizeof(g_outmsg));
nbytes = write(fd, g_outmsg, sizeof(g_outmsg));
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);
}
/* Won't get here, but if we did this what we would have to do */
close(fd);
return 0;
}

121
examples/usbserial/main.c
View File

@ -39,8 +39,11 @@
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <debug.h>
@ -64,10 +67,41 @@
# endif
#endif
#define IOBUFFER_SIZE 256
/****************************************************************************
* Private Data
****************************************************************************/
static const char g_shortmsg[] = "Hello, World!!\n";
static const char g_longmsg[] =
"The Spanish Armada a Speech by Queen Elizabeth I of England\n"
"Addressed to the English army at Tilbury Fort - 1588\n"
"My loving people, we have been persuaded by some, that are careful of our "
"safety, to take heed how we commit ourselves to armed multitudes, for fear "
"of treachery; but I assure you, I do not desire to live to distrust my "
"faithful and loving people.\n"
"Let tyrants fear; I have always so behaved myself that, under God, I have "
"placed my chiefest strength and safeguard in the loyal hearts and good will "
"of my subjects. And therefore I am come amongst you at this time, not as for "
"my recreation or sport, but being resolved, in the midst and heat of the "
"battle, to live or die amongst you all; to lay down, for my God, and for "
"my kingdom, and for my people, my honour and my blood, even the dust.\n"
"I know I have but the body of a weak and feeble woman; but I have the heart "
"of a king, and of a king of England, too; and think foul scorn that Parma "
"or Spain, or any prince of Europe, should dare to invade the borders of my "
"realms: to which, rather than any dishonour should grow by me, I myself will "
"take up arms; I myself will be your general, judge, and rewarder of every "
"one of your virtues in the field.\n"
"I know already, by your forwardness, that you have deserved rewards and "
"crowns; and we do assure you, on the word of a prince, they shall be duly "
"paid you. In the mean my lieutenant general shall be in my stead, than whom "
"never prince commanded a more noble and worthy subject; not doubting by "
"your obedience to my general, by your concord in the camp, and by your "
"valour in the field, we shall shortly have a famous victory over the enemies "
"of my God, of my kingdom, and of my people.\n";
static char g_iobuffer[IOBUFFER_SIZE];
/****************************************************************************
* Public Functions
****************************************************************************/
@ -91,8 +125,12 @@ void user_initialize(void)
int user_start(int argc, char *argv[])
{
FILE *stream;
int infd;
int outfd;
int count;
ssize_t nbytes;
int ret;
int i;
/* Initialize the USB serial driver */
@ -105,27 +143,24 @@ int user_start(int argc, char *argv[])
}
message("user_start: Successfully registered the serial driver\n");
/* Open the USB serial device for output */
/* Open the USB serial device for writing (blocking) */
do
{
message("user_start: Opening USB serial driver\n");
stream = fopen("/dev/ttyUSB0", "w");
if (!stream)
outfd = open("/dev/ttyUSB0", O_WRONLY);
if (outfd < 0)
{
int errcode = errno;
message("user_start: ERROR: Failed to open /dev/ttyUSB0: %d\n", errcode);
message("user_start: ERROR: Failed to open /dev/ttyUSB0 for writing: %d\n", errcode);
/* ENOTCONN means that the USB device is not yet connected */
#if 0 /* BUG: May report the wrong error */
if (errcode == ENOTCONN)
#endif
{
message("user_start: Not connected. Wait and try again.\n");
sleep(5);
}
#if 0 /* BUG: May report the wrong error */
else
{
/* Give up on other errors */
@ -133,40 +168,82 @@ int user_start(int argc, char *argv[])
message("user_start: Aborting\n");
return 2;
}
#endif
}
}
while (!stream);
while (outfd < 0);
/* Open the USB serial device for reading (non-blocking) */
infd = open("/dev/ttyUSB0", O_RDONLY|O_NONBLOCK);
if (infd < 0)
{
message("user_start: ERROR: Failed to open /dev/ttyUSB0 for reading: %d\n", errno);
close(outfd);
return 3;
}
message("user_start: Successfully opened the serial driver\n");
/* Then say hello -- forever */
count = 0;
for (;;)
{
message("user_start: Saying hello\n");
ret = fprintf(stream, "Hello, World!!\n");
if (ret < 0)
if (count < 8)
{
message("user_start: ERROR: fprintf failed: %d\n", errno);
fclose(stream);
return 3;
message("user_start: Saying hello\n");
nbytes = write(outfd, g_shortmsg, sizeof(g_shortmsg));
count++;
}
else
{
message("user_start: Reciting QEI's speech of 1588\n");
nbytes = write(outfd, g_longmsg, sizeof(g_longmsg));
count = 0;
}
ret = fflush(stream);
if (ret < 0)
if (nbytes < 0)
{
message("user_start: ERROR: fflush failed: %d\n", errno);
fclose(stream);
message("user_start: ERROR: write failed: %d\n", errno);
close(infd);
close(outfd);
return 4;
}
/* Poll for incoming messages */
message("user_start: Waiting\n");
sleep(5);
for (i = 0; i < 5; i++)
{
nbytes = read(infd, g_iobuffer, IOBUFFER_SIZE);
if (nbytes < 0)
{
int errorcode = errno;
if (errorcode != EAGAIN)
{
message("user_start: ERROR: read failed: %d\n", errno);
close(infd);
close(outfd);
return 6;
}
}
else
{
message("user_start: Received %d bytes:\n", nbytes);
if (nbytes > 0)
{
message("user_start: ");
(void)fwrite(g_iobuffer, 1, nbytes, stdout);
}
}
sleep(1);
}
}
/* Won't get here, but if we did this what we would have to do */
fclose(stream);
close(infd);
close(outfd);
return 0;
}