added blink.c from wiringX tests

1 files changed, 73 insertions, 0 deletions

diff --git a/blink.c b/blink.c
new file mode 100644
index 0000000..4598503
--- /dev/null
+++ b/blink.c
@@ -0,0 +1,73 @@
+/*
+	Copyright (c) 2016 CurlyMo <curlymoo1@gmail.com>
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+
+#include "wiringx.h"
+#include "../src/platform/platform.h"
+
+char *usage =
+	"Usage: %s platform GPIO\n"
+	"       GPIO is the GPIO to write to\n"
+	"Example: %s raspberrypi2 10\n";
+
+int main(int argc, char *argv[]) {
+	char *str = NULL, *platform = NULL;
+	char usagestr[130];
+	int gpio = 0, invalid = 0;
+
+	memset(usagestr, '\0', 130);
+
+	// expect only 1 argument => argc must be 2
+	if(argc != 3) {
+		snprintf(usagestr, 129, usage, argv[0], argv[0]);
+		puts(usagestr);
+		return -1;
+	}
+
+	// check for a valid, numeric argument
+	platform = argv[1];
+	str = argv[2];
+	while(*str != '\0') {
+		if(!isdigit(*str)) {
+			invalid = 1;
+		}
+		str++;
+	}
+	if(invalid == 1) {
+		printf("%s: Invalid GPIO %s\n", argv[0], argv[2]);
+		return -1;
+	}
+
+	gpio = atoi(argv[2]);
+
+	if(wiringXSetup(platform, NULL) == -1) {
+		wiringXGC();
+		return -1;
+	}
+
+	if(wiringXValidGPIO(gpio) != 0) {
+		printf("%s: Invalid GPIO %d\n", argv[0], gpio);
+		wiringXGC();
+		return -1;
+	}
+
+	pinMode(gpio, PINMODE_OUTPUT);
+	while(1) {
+		printf("Writing to GPIO %d: High\n", gpio);
+		digitalWrite(gpio, HIGH);
+		sleep(1);
+		printf("Writing to GPIO %d: Low\n", gpio);
+		digitalWrite(gpio, LOW);
+		sleep(1);
+	}
+}