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+/****************************************************************************
+ * examples/relays/relays_main.c
+ *
+ * Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ * Author: Darcy Gong
+ *
+ * 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 <nuttx/arch.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/arch.h>
+
+#ifdef CONFIG_ARCH_RELAYS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#ifndef CONFIG_EXAMPLES_RELAYS_NRELAYS
+# define CONFIG_EXAMPLES_RELAYS_NRELAYS 2
+#endif
+
+ /****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: relays_main
+ ****************************************************************************/
+
+int relays_main(int argc, char *argv[])
+{
+ char *stat = NULL;
+ char *no = NULL;
+ bool badarg = false;
+ bool set_stat = false;
+ uint32_t r_stat;
+ int option;
+ int n = -1;
+ int ret = -1;
+ int i;
+
+ while ((option = getopt(argc, argv, ":n:")) != ERROR)
+ {
+ switch (option)
+ {
+ case 'n':
+ no = optarg;
+ n = atoi(no);
+ break;
+
+ case ':':
+ badarg = true;
+ break;
+
+ case '?':
+ default:
+ badarg = true;
+ break;
+ }
+ }
+
+ if (badarg)
+ {
+ printf("usage: relays [ -n <relay id> ] <switch-status>\n");
+ return -1;
+ }
+
+ if (optind == argc - 1)
+ {
+ stat = argv[optind];
+ set_stat = (!strcmp(stat,"on") || !strcmp(stat,"ON")) ? true : false ;
+ }
+
+ up_relaysinit();
+
+ if (n >= 0)
+ {
+ printf("set RELAY ID %d to %s\n", n , set_stat ? "ON" : "OFF");
+ relays_setstat(n,set_stat);
+ }
+ else
+ {
+ r_stat = 0;
+ for (i = 0; i < CONFIG_EXAMPLES_RELAYS_NRELAYS; i++)
+ {
+ printf("set RELAY ID %d to %s\n", i , set_stat ? "ON" : "OFF");
+ r_stat |= (set_stat ? 1 : 0) << i;
+ }
+
+ relays_setstats(r_stat);
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_ARCH_RELAYS */