userspace/tools: add wrs_status_led to manage status LED

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

userspace/tools/Makefile

@@ -6,6 +6,8 @@ TOOLS += sdb-read
 TOOLS += nbtee
 TOOLS += wrs_auxclk
 TOOLS += wrs_checkcfg
+TOOLS += wrs_status_led
+
 PPSI_CONFIG = ../ppsi/include/generated/autoconf.h
 
 WR_INSTALL_ROOT ?= /usr/lib/white-rabbit

userspace/tools/wrs_status_led.c

+/*
+ * wrs_status_led.c
+ *
+ * Turn on/off and change color of status LED
+ *
+ *  Created on: July 9, 2015
+ *  Authors:
+ * 		- Adam Wujek
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License...
+ */
+#include <stdlib.h>
+#include <getopt.h>
+
+#include <libwr/shw_io.h>
+#include <libwr/wrs-msg.h>
+
+#ifndef __GIT_VER__
+#define __GIT_VER__ "x.x"
+#endif
+
+#ifndef __GIT_USR__
+#define __GIT_USR__ "?"
+#endif
+
+void help(const char* pgrname)
+{
+	printf("wrs_status_led. Commit %s, built on " __DATE__ "\n", 
+	       __GIT_VER__);
+	printf("usage: %s <command>\n", pgrname);
+	printf("available commands are:\n"
+	       "   -x turn off status led\n"
+	       "   -h this help\n"
+               "\n");
+	exit(1);
+}
+
+int main(int argc, char **argv)
+{
+	int opt;
+
+	/* argc forced to 1: -t and -v are not "terse" and "verbose" */
+	wrs_msg_init(1, argv);
+
+	assert_init(shw_pio_mmap_init());
+	shw_io_init();
+	shw_io_configure_all();
+
+	while ((opt = getopt(argc, argv, "yxhqv")) != -1) {
+		switch (opt) {
+		case 'x':
+			shw_io_write(shw_io_led_state_o, 0);
+			shw_io_write(shw_io_led_state_g, 0);
+			break;
+
+		case 'y':
+			shw_io_write(shw_io_led_state_o, 1);
+			shw_io_write(shw_io_led_state_g, 1);
+			break;
+
+		case 'h':
+			help(argv[0]);
+			exit(0);
+			break;
+
+		case 'q': break; /* done in wrs_msg_init() */
+		case 'v': break; /* done in wrs_msg_init() */
+
+		default:
+			fprintf(stderr,
+				"Unrecognized option. Call %s -h for help.\n",
+				argv[0]);
+			exit (1);
+		}
+	}
+
+	return 0;
+}