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apps/examples/gps: Add GPS example using MINMEA lib

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This commit is contained in:
Alan Carvalho de Assis 2018-06-09 17:54:18 -06:00 committed by Gregory Nutt
parent 6aad29e67d
commit 36e04b3533
5 changed files with 298 additions and 0 deletions
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12
examples/gps/.gitignore vendored Normal file
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/Make.dep
/.depend
/.built
/*.asm
/*.obj
/*.rel
/*.lst
/*.sym
/*.adb
/*.lib
/*.src

32
examples/gps/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config EXAMPLES_GPS
bool "GPS example"
default n
select GPSUTILS_MINMEA_LIB
---help---
Enable the gps test example
if EXAMPLES_GPS
config EXAMPLES_GPS_PROGNAME
string "Program name"
default "gps"
depends on BUILD_KERNEL
---help---
This is the name of the program that will be use when the NSH ELF
program is installed.
config EXAMPLES_GPS_PRIORITY
int "GPS task priority"
default 100
config EXAMPLES_GPS_STACKSIZE
int "GPS stack size"
default 2048
endif

40
examples/gps/Make.defs Normal file
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############################################################################
# apps/examples/gps/Make.defs
# Adds selected applications to apps/ build
#
# Copyright (C) 2015 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# 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.
#
############################################################################
ifeq ($(CONFIG_EXAMPLES_GPS),y)
CONFIGURED_APPS += examples/gps
endif

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examples/gps/Makefile Normal file
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############################################################################
# apps/examples/gps/Makefile
#
# Copyright (C) 2008, 2010-2013 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# 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)/Make.defs
# GPS built-in application info
CONFIG_EXAMPLES_GPS_PRIORITY ?= SCHED_PRIORITY_DEFAULT
CONFIG_EXAMPLES_GPS_STACKSIZE ?= 2048
APPNAME = gps
PRIORITY = $(CONFIG_EXAMPLES_GPS_PRIORITY)
STACKSIZE = $(CONFIG_EXAMPLES_GPS_STACKSIZE)
# GPS Example
ASRCS =
CSRCS =
MAINSRC = gps_main.c
CONFIG_EXAMPLES_GPS_PROGNAME ?= gps$(EXEEXT)
PROGNAME = $(CONFIG_EXAMPLES_GPS_PROGNAME)
include $(APPDIR)/Application.mk

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examples/gps/gps_main.c Normal file
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/****************************************************************************
* examples/hello/gps_main.c
*
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
* Author: Alan Carvalho de Assis <acassis@gmail.com>
*
* 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 <nuttx/config.h>
#include <stdio.h>
#include <fcntl.h>
#include <wchar.h>
#include <syslog.h>
#include "gpsutils/minmea.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* gps_main
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int gps_main(int argc, char *argv[])
#endif
{
int fd;
int cnt;
char ch;
char line[MINMEA_MAX_LENGTH];
/* Open the GPS serial port */
fd = open("/dev/ttyS1", O_RDONLY);
if (fd < 0)
{
printf("Unable to open file /dev/ttyS1\n");
}
/* Run forever */
for (; ; )
{
/* Read until we complete a line */
cnt = 0;
do
{
read(fd, &ch, 1);
if (ch != '\r' && ch != '\n')
{
line[cnt++] = ch;
}
}
while (ch != '\r' && ch != '\n');
line[cnt] = '\0';
switch (minmea_sentence_id(line, false))
{
case MINMEA_SENTENCE_RMC:
{
struct minmea_sentence_rmc frame;
if (minmea_parse_rmc(&frame, line))
{
printf("Fixed-point Latitude...........: %d\n",
minmea_rescale(&frame.latitude, 1000));
printf("Fixed-point Longitude..........: %d\n",
minmea_rescale(&frame.longitude, 1000));
printf("Fixed-point Speed..............: %d\n",
minmea_rescale(&frame.speed, 1000));
printf("Floating point degree latitude.: %2.6f\n",
minmea_tocoord(&frame.latitude));
printf("Floating point degree longitute: %2.6f\n",
minmea_tocoord(&frame.longitude));
printf("Floating point speed...........: %2.6f\n",
minmea_tocoord(&frame.speed));
}
else
{
printf("$xxRMC sentence is not parsed\n");
}
}
break;
case MINMEA_SENTENCE_GGA:
{
struct minmea_sentence_gga frame;
if (minmea_parse_gga(&frame, line))
{
printf("Fix quality....................: %d\n",
frame.fix_quality);
printf("Altitude.......................: %d\n",
frame.altitude.value);
printf("Tracked satellites.............: %d\n",
frame.satellites_tracked);
}
else
{
printf("$xxGGA sentence is not parsed\n");
}
}
break;
case MINMEA_INVALID:
case MINMEA_UNKNOWN:
case MINMEA_SENTENCE_GSA:
case MINMEA_SENTENCE_GLL:
case MINMEA_SENTENCE_GST:
case MINMEA_SENTENCE_GSV:
{
}
break;
}
}
return 0;
}