apps/examples/obd2: Add OBD2 example application

examples/README.txt

@@ -1314,6 +1314,11 @@ examples/null
   This is the do nothing application.  It is only used for bringing
   up new NuttX architectures in the most minimal of environments.
 
+examples/obd2
+^^^^^^^^^^^^^
+
+  A simple test of apps/canutils/libobd2.
+
 examples/oneshot
 ^^^^^^^^^^^^^^^^
 

examples/obd2/.gitignore

@@ -0,0 +1,11 @@
+/Make.dep
+/.depend
+/.built
+/*.asm
+/*.obj
+/*.rel
+/*.lst
+/*.sym
+/*.adb
+/*.lib
+/*.src

examples/obd2/Kconfig

@@ -0,0 +1,15 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config EXAMPLES_OBD2
+	bool "OBD-II application example"
+	default n
+	select CANUTILS_LIBOBD2
+	---help---
+		Enable the OBD-II application example.
+
+if EXAMPLES_OBD2
+
+endif

examples/obd2/Make.defs

@@ -0,0 +1,39 @@
+############################################################################
+# apps/examples/obd2/Make.defs
+# Adds selected applications to apps/ build
+#
+#   Copyright (C) 2017 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_OBD2),y)
+CONFIGURED_APPS += examples/obd2
+endif

examples/obd2/Makefile

@@ -0,0 +1,56 @@
+############################################################################
+# apps/examples/obd2/Makefile
+#
+#   Copyright (C) 2017 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
+
+# OBD2 application info
+
+CONFIG_EXAMPLES_OBD2_PRIORITY ?= SCHED_PRIORITY_DEFAULT
+CONFIG_EXAMPLES_OBD2_STACKSIZE ?= 2048
+
+APPNAME = obd2
+PRIORITY = $(CONFIG_EXAMPLES_OBD2_PRIORITY)
+STACKSIZE = $(CONFIG_EXAMPLES_OBD2_STACKSIZE)
+
+# OBD2 Example
+
+ASRCS =
+CSRCS =
+MAINSRC = obd2_main.c
+
+CONFIG_EXAMPLES_OBD2_PROGNAME ?= obd2$(EXEEXT)
+PROGNAME = $(CONFIG_EXAMPLES_OBD2_PROGNAME)
+
+include $(APPDIR)/Application.mk

examples/obd2/obd2_main.c

@@ -0,0 +1,94 @@
+/****************************************************************************
+ * examples/obd2/obd2_main.c
+ *
+ *   Copyright (C) 2017 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdio.h>
+
+#include "canutils/obd.h"
+#include "canutils/obd_pid.h"
+#include "canutils/obd_frame.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * obd2_main
+ ****************************************************************************/
+
+#ifdef CONFIG_BUILD_KERNEL
+int main(int argc, FAR char *argv[])
+#else
+int obd2_main(int argc, char *argv[])
+#endif
+{
+  struct obd_dev_s *dev;
+  int ret;
+
+  dev = obd_init("/dev/can0", 0, 0);
+  if (!dev)
+    {
+      printf("Failed to initialize the OBD-II device!\n");
+      return -1;
+    }
+
+  /* Request the RPM */
+
+  ret = obd_send_request(dev, OBD_SHOW_DATA, OBD_PID_RPM);
+  if (ret < 0)
+    {
+      printf("Failed to request RPM!\n");
+      return -1;
+    }
+
+  /* Wait for response */
+
+  ret = obd_wait_response(dev, OBD_SHOW_DATA, OBD_PID_RPM, 100);
+  if (ret < 0)
+    {
+      printf("Failed to receive the response!\n");
+      return -1;
+    }
+
+  /* Decode the received PID */
+
+  printf("RPM = %s\n", obd_decode_pid(dev, OBD_PID_RPM));
+
+  return 0;
+}

include/canutils/obd.h

@@ -34,7 +34,7 @@
  ****************************************************************************/
 
 #ifndef __APPS_INCLUDE_CANUTILS_OBD_H
-#define __APPS_INCLUDE_CANUTILS_OBD_H
+#define __APPS_INCLUDE_CANUTILS_OBD_H 1
 
 /****************************************************************************
  * Included Files