Merged in floxx/apps (pull request #107)

Added a simple reader example for the LIS3DSH acceleration sensor on STM32F4Discovery

* Added a simple reader example for the LIS3DSH acceleration sensor as
    found on STM32F4Discovery.

* Edited lis3dsh_reader_main.c to obey nuttx coding standard.

Approved-by: Gregory Nutt <gnutt@nuttx.org>

examples/lis3dsh_reader/Kconfig

@@ -0,0 +1,24 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config EXAMPLES_LIS3DSH_READER
+	bool "LIS3DSH acceleration reader example"
+	default n
+	depends on LIS3DSH
+    depends on SPI_EXCHANGE
+	---help---
+		Enable the LIS3DSH reader example
+
+if EXAMPLES_LIS3DSH_READER
+
+config EXAMPLES_LIS3DSH_READER_PROGNAME
+	string "Program name"
+	default "lis3dsh_reader"
+	depends on BUILD_KERNEL
+	---help---
+		This is the name of the program that will be use when the NSH ELF
+		program is installed.
+
+endif # EXAMPLES_LIS3DSH_READER

examples/lis3dsh_reader/Make.defs

@@ -0,0 +1,39 @@
+############################################################################
+# apps/examples/lis3dsh_reader/Make.defs
+# Adds selected applications to apps/ build
+#
+#   Copyright (C) 2017 Florian Olbrich. All rights reserved.
+#   Author: Florian Olbrich <florian.olbrich@oth-regensburg.de>
+#
+# 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_LIS3DSH_READER),y)
+CONFIGURED_APPS += examples/lis3dsh_reader
+endif

examples/lis3dsh_reader/Makefile

@@ -0,0 +1,51 @@
+############################################################################
+# apps/examples/lis3dsh_reader/Makefile
+#
+#   Copyright (C) 2017 Florian Olbrich. All rights reserved.
+#   Author: Florian Olbrich <florian.olbrich@oth-regensburg.de>
+#
+# 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 $(TOPDIR)/Make.defs
+
+APPNAME = lis3dsh_reader
+PRIORITY = SCHED_PRIORITY_DEFAULT
+STACKSIZE = 2048
+
+# LIS3DSH reader example
+
+ASRCS =
+CSRCS = 
+MAINSRC = lis3dsh_reader_main.c
+
+CONFIG_FLOX_IMUTEST_PROGNAME ?= lis3dsh_reader$(EXEEXT)
+PROGNAME = $(CONFIG_EXAMPLES_LIS3DSH_READER_PROGNAME)
+
+include $(APPDIR)/Application.mk

examples/lis3dsh_reader/lis3dsh_reader_main.c

@@ -0,0 +1,81 @@
+/*
+ * lis3dsh_reader_main.c
+ *
+ *   Copyright (C) 2017 Florian Olbrich. All rights reserved.
+ *   Author: Florian Olbrich <florian.olbrich@oth-regensburg.de>
+ *
+ * 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 <nuttx/config.h>
+
+#include <sys/ioctl.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <errno.h>
+
+#include <debug.h>
+#include <time.h>
+
+#include <nuttx/sensors/lis3dsh.h>
+
+/****************************************************************************
+ * lis3dsh_reader_main
+ ****************************************************************************/
+
+#ifdef CONFIG_BUILD_KERNEL
+int main(int argc, FAR char *argv[])
+#else
+int lis3dsh_reader_main(int argc, FAR char *argv[])
+#endif
+{
+  FILE *acc;
+  acc = fopen("/dev/acc0", "r");
+
+  struct acc_data_t
+  {
+    int16_t x;
+    int16_t y;
+    int16_t z;
+  } acc_data;
+
+  for (uint8_t i = 0; 1; i++)
+    {
+      fread( &acc_data, 6, 1, acc );
+      printf("x: %4d  y: %4d  z: %4d            \r", acc_data.x, acc_data.y, acc_data.z);
+      usleep(300);
+    }
+
+  fclose(acc);
+
+  return EXIT_SUCCESS;
+}