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apps/examples/zerocross: Add a Zero Cross application example. From Alan Carvalho de Assis

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Alan Carvalho de Assis 2015-10-13 07:46:42 -06:00 committed by Gregory Nutt
parent d538f48797
commit 825b721dfa
8 changed files with 282 additions and 1 deletions
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3
ChangeLog.txt
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@ -1441,4 +1441,5 @@
essentially the same as examples/smart, but has all of the SmartFS
specific logic ripped out. This was created for testing the new
tmpfs (2015-10-10).
* apps/examples/zerocross: Add a Zero Cross application example.
From Alan Carvalho de Assis (2015-10-13).

1
examples/Kconfig
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@ -89,5 +89,6 @@ source "$APPSDIR/examples/watchdog/Kconfig"
source "$APPSDIR/examples/wget/Kconfig"
source "$APPSDIR/examples/wgetjson/Kconfig"
source "$APPSDIR/examples/xmlrpc/Kconfig"
source "$APPSDIR/examples/zerocross/Kconfig"
endmenu # Examples

5
examples/README.txt
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@ -2250,3 +2250,8 @@ examples/xmlrpc
Default 0x0a000001. Ignored if CONFIG_NSH_BUILTIN_APPS is selected.
CONFIG_EXAMPLES_XMLRPC_NETMASK - Network Mask. Default 0xffffff00
Ignored if CONFIG_NSH_BUILTIN_APPS is selected.
examples/zerocross
^^^^^^^^^^^^^^^^^^
A simple test of the Zero Crossing device driver.

11
examples/zerocross/.gitignore vendored Normal file
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@ -0,0 +1,11 @@
/Make.dep
/.context
/.depend
/.built
/*.asm
/*.rel
/*.lst
/*.sym
/*.adb
/*.lib
/*.src

23
examples/zerocross/Kconfig Normal file
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@ -0,0 +1,23 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config EXAMPLES_ZEROCROSS
bool "Zero Cross Detection example"
default n
depends on ZEROCROSS && !DISABLE_SIGNALS
---help---
Enable the zero cross detection example
if EXAMPLES_ZEROCROSS
config EXAMPLES_ZEROCROSS_DEVNAME
string "Zero Cross device name"
default "/dev/zc0"
config EXAMPLES_ZEROCROSS_SIGNO
int "Zero Cross signal"
default 13
endif

39
examples/zerocross/Make.defs Normal file
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@ -0,0 +1,39 @@
############################################################################
# apps/examples/zerocross/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_ZEROCROSS),y)
CONFIGURED_APPS += examples/zerocross
endif

53
examples/zerocross/Makefile Normal file
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@ -0,0 +1,53 @@
############################################################################
# apps/examples/zerocross/Makefile
#
# 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.
#
############################################################################
-include $(TOPDIR)/Make.defs
# Zero Cross Example
ASRCS =
CSRCS =
MAINSRC = zerocross_main.c
CONFIG_ZEROCROSS_PROGNAME ?= zerocross$(EXEEXT)
PROGNAME = $(CONFIG_ZEROCROSS_PROGNAME)
# Buttons built-in application info
APPNAME = zerocross
PRIORITY = SCHED_PRIORITY_DEFAULT
STACKSIZE = 2048
include $(APPDIR)/Application.mk

148
examples/zerocross/zerocross_main.c Normal file
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@ -0,0 +1,148 @@
/****************************************************************************
* examplex/zerocross/zerocross_main.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/sensors/zerocross.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_ZEROCROSS
# error "CONFIG_ZEROCROSS is not defined in the configuration"
#endif
#ifndef CONFIG_EXAMPLES_ZEROCROSS_DEVNAME
# define CONFIG_EXAMPLES_ZEROCROSS_DEVNAME "/dev/zc0"
#endif
#ifndef CONFIG_EXAMPLES_ZEROCROSS_SIGNO
# define CONFIG_EXAMPLES_ZEROCROSS_SIGNO 13
#endif
/* Helpers ******************************************************************/
#ifndef MIN
# define MIN(a,b) (a < b ? a : b)
#endif
#ifndef MAX
# define MAX(a,b) (a > b ? a : b)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* zerocross_main
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int zerocross_main(int argc, char *argv[])
#endif
{
struct zc_notify_s notify;
int fd;
int tmp;
int ret;
int err = EXIT_FAILURE;
/* Open the zerocross device */
fd = open(CONFIG_EXAMPLES_ZEROCROSS_DEVNAME, O_RDONLY);
if (fd < 0)
{
fprintf(stderr, "ERROR: Failed to open %s: %d\n",
CONFIG_EXAMPLES_ZEROCROSS_DEVNAME, errno);
return EXIT_FAILURE;
}
/* Register to receive a signal on every zero cross event */
notify.zc_signo = CONFIG_EXAMPLES_ZEROCROSS_SIGNO;
ret = ioctl(fd, ZCIOC_REGISTER, (unsigned long)((uintptr_t)&notify));
if (ret < 0)
{
fprintf(stderr, "ERROR: ioctl(ZCIOC_REGISTER) failed: %d\n", errno);
goto errout_with_fd;
}
/* Then loop, receiving signals indicating zero cross events. */
for (; ; )
{
struct siginfo value;
sigset_t set;
ssize_t nread;
/* Wait for a signal */
(void)sigemptyset(&set);
(void)sigaddset(&set, CONFIG_EXAMPLES_ZEROCROSS_SIGNO);
ret = sigwaitinfo(&set, &value);
if (ret < 0)
{
fprintf(stderr, "ERROR: sigwaitinfo() failed: %d\n", errno);
goto errout_with_fd;
}
/* Show the value accompanying the signal */
printf("Signal received!\n");
printf("Sample = %d\n", value.si_value.sival_int);
}
err = EXIT_SUCCESS;
errout_with_fd:
close(fd);
return err;
}