1 files changed, 31 insertions, 0 deletions
diff --git a/src/arch/posix/driver/gpio.cc b/src/arch/posix/driver/gpio.cc
new file mode 100644
index 0000000..25eed39
--- /dev/null
+++ b/src/arch/posix/driver/gpio.cc
@@ -0,0 +1,31 @@
+#include "driver/gpio.h"
+#include <stdio.h>
+
+void GPIO::led_on(unsigned char id)
+{
+	if (id < 8) {
+		printf("▶ LED %3d on\n", id);
+		ledstate |= (1 << id);
+	}
+}
+
+void GPIO::led_off(unsigned char id)
+{
+	if (id < 8) {
+		printf("▶ LED %3d off\n", id);
+		ledstate &= ~(1 << id);
+	}
+}
+
+void GPIO::led_toggle(unsigned char id)
+{
+	if (id < 8) {
+		if (ledstate & (1 << id)) {
+			led_off(id);
+		} else {
+			led_on(id);
+		}
+	}
+}
+
+GPIO gpio;