--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main/calibration.h	Sat Oct 20 13:23:15 2018 +0200
@@ -0,0 +1,31 @@
+/**
+ * @file calibration.h
+ * @brief TFT screeen calibration
+ */
+#ifndef	_CALIBRATION_H
+#define	_CALIBRATION_H
+
+
+/**
+ * @brief Set Touchscreen calibration values.
+ *        Values are for the default portrait mode, in this application
+ *        the screen is used in landscape mode.
+ * @param xleft X left side    (landscape bottom)
+ * @param xright X right side  (landscape top)
+ * @param ytop Y top           (landscape left)
+ * @param ybottom Y botto      (landscape right)
+ */
+int TS_set_calibration(int xleft, int xright, int ytop, int ybottom);
+
+/**
+ * @brief Initialize for TFT calibration
+ */
+void Calibration_Init(void);
+
+/**
+ * @brief Do the TFT calibration
+ */
+void Calibration_Loop(void);
+
+
+#endif