diff --git a/glcd/glcdWorker.h b/glcd/glcdWorker.h
new file mode 100644
index 00000000..14709b8f
--- /dev/null
+++ b/glcd/glcdWorker.h
@@ -0,0 +1,123 @@
+#ifndef GLCD_WORKER_H
+#define GLCD_WORKER_H
+
+#define GLCD_WORKER_SIZE 512
+
+enum glcd_action {	GLCD_SET_POWERMODE,
+					GLCD_SET_ORIENTATION,
+					GLCD_SET_WINDOW,
+					GLCD_FILL_AREA,
+					GLCD_WRITE_AREA,
+					GLCD_CLEAR,
+					GLCD_GET_PIXEL_COLOR,
+					GLCD_DRAW_PIXEL,
+					GLCD_WRITE_STREAM_START,
+					GLCD_WRITE_STREAM_STOP,
+					GLCD_WRITE_STREAM,
+					GLCD_VERTICAL_SCROLL,
+				};
+
+enum glcd_result {	GLCD_DONE,
+					GLCD_FAILED,
+					GLCD_PROGRESS,
+				};
+
+#define _glcd_msg_base			\
+	enum glcd_action action;	\
+	enum glcd_result result;
+
+struct glcd_msg_base {
+	_glcd_msg_base
+};
+
+struct glcd_msg_powermode {
+	_glcd_msg_base
+
+	uint8_t powermode;
+};
+
+struct glcd_msg_orientation {
+	_glcd_msg_base
+
+	uint8_t newOrientation;
+};
+
+struct glcd_msg_set_window {
+	_glcd_msg_base
+
+	uint16_t x0;
+	uint16_t y0;
+	uint16_t x1;
+	uint16_t y1;
+};
+
+struct glcd_msg_fill_area {
+	_glcd_msg_base
+
+	uint16_t x0;
+	uint16_t y0;
+	uint16_t x1;
+	uint16_t y1;
+	uint16_t color;
+};
+
+struct glcd_msg_write_area {
+	_glcd_msg_base
+
+	uint16_t x0;
+	uint16_t y0;
+	uint16_t x1;
+	uint16_t y1;
+	uint16_t *buffer;
+	size_t size;
+};
+
+struct glcd_msg_clear {
+	_glcd_msg_base
+
+	uint16_t color;
+};
+
+struct glcd_msg_get_pixel_color {
+	_glcd_msg_base
+
+	uint16_t x;
+	uint16_t y;
+	uint16_t color;
+};
+
+struct glcd_msg_draw_pixel {
+	_glcd_msg_base
+
+	uint16_t x;
+	uint16_t y;
+	uint16_t color;
+};
+
+struct glcd_msg_write_stream_start {
+	_glcd_msg_base
+};
+
+struct glcd_msg_write_stream_stop {
+	_glcd_msg_base
+};
+
+struct glcd_msg_write_stream {
+	_glcd_msg_base
+
+	uint16_t *buffer;
+	uint16_t size;
+};
+
+struct glcd_msg_vertical_scroll {
+	_glcd_msg_base
+
+	uint16_t x0;
+	uint16_t y0;
+	uint16_t x1;
+	uint16_t y1;
+	int16_t lines;
+};
+
+#endif
+