diff --git a/.gitignore b/.gitignore
index f6f63c7..289c8f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 bin/
 obj/
-
+.scannerwork/
diff --git a/Makefile b/Makefile
index 3dc9c35..9815269 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+PLATFORM ?= posix
 CROSS_COMPILE ?=
 
 TARGET_FILE ?= test_c
@@ -18,9 +19,8 @@ UNIT_TEST_OBJ_DIR = $(OBJ_DIR)/$(UNIT_TEST_SRC_DIR)
 PREFIX ?= /usr
 BIN_INSTALL_DIR = $(PREFIX)/bin
 
-INCLUDES := interface/
 INCLUDES += include/
-INCLUDES += include/$(ARCH)/
+INCLUDES += include/platform/$(PLATFORM)/
 INCLUDES += $(PREFIX)/include/
 INCLUDES += $(EXTRA_INC)
 
@@ -39,12 +39,13 @@ C_FLAGS += -fpic
 
 C_FLAGS += -O0 -ggdb3 -Wall
 CPP_FLAGS += $(addprefix -I, $(INCLUDES))
+CPP_FLAGS += -DPLATFORM=$(PLATFORM) -DPLATFORM_$(PLATFORM)
 
 CHECK_FLAGS = $(addprefix -I,$(filter-out $(PREFIX)/include/,$(INCLUDES)))
-CHECK_FLAGS += --enable=all --template=gcc --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr --force
+CHECK_FLAGS += --enable=all --template=gcc --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr --force --xml --xml-version=2 2> cppcheck-report.xml
 
 C_SRCS = $(wildcard $(SRC_DIR)/*.c)
-C_SRCS += $(wildcard $(SRC_DIR)/$(ARCH)/*.c)
+C_SRCS += $(wildcard $(SRC_DIR)/platform/$(PLATFORM)/*.c)
 C_OBJS = $(patsubst $(SRC_DIR)%,$(OBJ_DIR)%,$(patsubst %.c,%.o,$(C_SRCS)))
 
 UNIT_TEST_SRCS = $(wildcard $(UNIT_TEST_SRC_DIR)/*.c) $(filter-out %main.c,$(CC_SRCS))
@@ -60,7 +61,7 @@ THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST))
 debug:
 	@echo $(C_SRCS)
 	@echo $(C_OBJS)
-	@echo $(ARCH)
+	@echo $(PLATFORM)
 	@echo $(CPP_FLAGS)
 
 all: $(TARGET)
@@ -84,6 +85,12 @@ clean:
 distclean:
 	rm -rf $(OBJ_DIR) $(BIN_DIR) $(COVERAGE_DIR)
 
+.PHONY: check
+check: $(C_SRCS)
+	echo $(C_SRCS)
+	cppcheck $(CHECK_FLAGS) $(C_SRCS)
+
+
 .PHONY: coverage
 coverage: _cov_genhtml
 	$(eval COVERAGE:=$(shell grep 'lines' .coverage.tmp | egrep -o '[0-9]+.[0-9]+%'))
@@ -110,10 +117,6 @@ build_unit_test: $(UNIT_TEST_TARGET)
 exec_unit_test: $(UNIT_TEST_TARGET)
 	$(UNIT_TEST_TARGET)
 
-.PHONY: check
-check: $(CC_SRCS)
-	$(CHECK) $(CHECK_FLAGS) $(CC_SRCS)
-
 $(UNIT_TEST_TARGET): $(UNIT_TEST_OBJS) $(THIS_MAKEFILE)
 	@mkdir -p $(BIN_DIR)/$(UNIT_TEST_SRC_DIR)
 	$(CC) $(C_FLAGS) $(LD_FLAGS) $(UNIT_TEST_OBJS) -o $@
@@ -124,7 +127,7 @@ $(TARGET): $(OBJS) $(THIS_MAKEFILE)
 
 .PRECIOUS: $(OBJ_DIR)/%.d
 $(OBJ_DIR)/%.d: $(SRC_DIR)/%.c
-	@mkdir -p $(OBJ_DIR)/$(ARCH)
+	@mkdir -p $(OBJ_DIR)/platform/$(PLATFORM)
 	$(CPP) -MM -MF $@ -MP -MT $(patsubst %.d,%.o,$@) $(CPP_FLAGS) $(patsubst $(OBJ_DIR)/%.d,$(SRC_DIR)/%.c,$@)
 
 .PRECIOUS: $(UNIT_TEST_OBJ_DIR)/%.d
@@ -133,7 +136,7 @@ $(UNIT_TEST_OBJ_DIR)/%.d: $(UNIT_TEST_SRC_DIR)/%.c
 	$(CPP) -MM -MF $@ -MP -MT $(patsubst %.d,%.o,$@) $(CPP_FLAGS) $(patsubst $(UNIT_TEST_OBJ_DIR)/%.d,$(UNIT_TEST_SRC_DIR)/%.c,$@)
 
 $(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(OBJ_DIR)/%.d
-	@mkdir -p $(OBJ_DIR)/$(ARCH)
+	@mkdir -p $(OBJ_DIR)/platform/$(PLATFORM)
 	$(CC) -c $(CPP_FLAGS) $(C_FLAGS) $< -o $@
 
 $(UNIT_TEST_OBJ_DIR)/%.o: $(UNIT_TEST_SRC_DIR)/%.c $(UNIT_TEST_OBJ_DIR)/%.d
diff --git a/include/board.h b/include/board.h
new file mode 100644
index 0000000..1a0968a
--- /dev/null
+++ b/include/board.h
@@ -0,0 +1,8 @@
+#ifndef __INCLUDE_BOARD_H__
+#define __INCLUDE_BOARD_H__
+
+#ifdef PLATFORM_posix
+#include "platform/posix/board.h"
+#endif
+
+#endif
diff --git a/interface/driver.h b/include/driver.h
similarity index 100%
rename from interface/driver.h
rename to include/driver.h
diff --git a/include/posix/gpio.h b/include/gpio.h
similarity index 100%
rename from include/posix/gpio.h
rename to include/gpio.h
diff --git a/include/posix/i2c.h b/include/i2c.h
similarity index 100%
rename from include/posix/i2c.h
rename to include/i2c.h
diff --git a/include/posix/board.h b/include/platform/posix/board.h
similarity index 98%
rename from include/posix/board.h
rename to include/platform/posix/board.h
index f6f3a63..330f05e 100644
--- a/include/posix/board.h
+++ b/include/platform/posix/board.h
@@ -1,8 +1,8 @@
-#ifndef __BOARD_H__
-#define __BOARD_H__
+#ifndef __INCLUDE_PLATFORM_POSIX_BOARD_H__
+#define __INCLUDE_PLATFORM_POSIX_BOARD_H__
 
 #include "driver.h"
-#include "posix/i2c.h"
+#include "i2c.h"
 #include "ssd1306.h"
 #include "st7789.h"
 #include "gpio.h"
diff --git a/include/posix/spi.h b/include/spi.h
similarity index 100%
rename from include/posix/spi.h
rename to include/spi.h
diff --git a/sonar-project.properties b/sonar-project.properties
new file mode 100644
index 0000000..c4c6cec
--- /dev/null
+++ b/sonar-project.properties
@@ -0,0 +1,16 @@
+sonar-project.properties
+
+sonar.projectKey=my:test:project
+
+sonar.language=c
+sonar.sources=src
+sonar.cxx.includeDirectories=include
+
+# defaults to project key
+#sonar.projectName=My project
+# defaults to 'not provided'
+#sonar.projectVersion=1.0
+ 
+sonar.sourceEncoding=UTF-8
+
+sonar.host.url=https://sonar.blackfinn.de
diff --git a/src/posix/gpio.c b/src/platform/posix/gpio.c
similarity index 100%
rename from src/posix/gpio.c
rename to src/platform/posix/gpio.c
diff --git a/src/posix/i2c.c b/src/platform/posix/i2c.c
similarity index 98%
rename from src/posix/i2c.c
rename to src/platform/posix/i2c.c
index 283a23c..13fd885 100644
--- a/src/posix/i2c.c
+++ b/src/platform/posix/i2c.c
@@ -8,7 +8,7 @@
 #include <sys/ioctl.h>
 #include <linux/i2c-dev.h>
 
-#include "posix/i2c.h"
+#include "i2c.h"
 
 int i2c_open(const struct driver *drv)
 {
diff --git a/src/posix/spi.c b/src/platform/posix/spi.c
similarity index 100%
rename from src/posix/spi.c
rename to src/platform/posix/spi.c
diff --git a/src/st7789.c b/src/st7789.c
index 7d94d75..1bc6e82 100644
--- a/src/st7789.c
+++ b/src/st7789.c
@@ -11,13 +11,6 @@ static void send_data_8bit(const struct driver *drv, uint8_t data);
 static void lcd_init(const struct driver *drv);
 static void lcd_set_windows(const struct driver *drv, uint16_t x_start, uint16_t y_start, uint16_t x_end, uint16_t y_end);
 
-#if 0
-static void send_data_16bit(const struct driver *drv, uint16_t data);
-static void lcd_clear(const struct driver *drv, uint16_t color);
-static void lcd_display(const struct driver *drv, const uint16_t *image);
-static void lcd_draw_pixel(const struct driver *drv, uint16_t x, uint16_t y, uint16_t color);
-#endif
-
 int st7789_open(const struct driver *drv)
 {
     assert(drv != NULL);
@@ -221,50 +214,3 @@ static void lcd_set_windows(const struct driver *drv, uint16_t x_start, uint16_t
 
     send_cmd(drv, 0X2C);
 }
-
-#if 0
-static void send_data_16bit(const struct driver *drv, uint16_t data)
-{
-    assert(drv != NULL);
-
-    struct st7789 *this = (struct st7789*)(drv->dev);
-    uint8_t buf[2] = {(data >> 8) & 0xff, data & 0xff};
-    drv_write(this->dc, "1", 1);
-    drv_write(this->spi, (const char* )buf, 2);
-}
-
-static void lcd_clear(const struct driver *drv, uint16_t color)
-{
-    assert(drv != NULL);
-
-    struct st7789 *this = (struct st7789*)(drv->dev);
-    uint16_t image[this->height * this->width];
-
-    color = ((color << 8) & 0xff00) | (color >> 8);
-    for (uint16_t i = 0; i < this->height * this->width; i++) {
-        image[i] = color;
-    }
-    lcd_set_windows(drv, 0, 0, this->width, this->height);
-    drv_write(this->dc, "1", 1);
-    for(uint16_t i = 0; i < this->height; i++) {
-        drv_write(this->spi, (const char *)&image[i * this->width], this->width * 2);
-    }
-}
-
-static void lcd_display(const struct driver *drv, const uint16_t *image)
-{
-    assert(drv != NULL);
-    struct st7789 *this = (struct st7789*)(drv->dev);
-    lcd_set_windows(drv, 0, 0, this->width, this->height);
-    drv_write(this->dc, "1", 1);
-    for (uint16_t i = 0; i < this->height; i++) {
-        drv_write(this->spi, (const char *)&image[i * this->width], this->width * 2);
-    }
-}
-
-static void lcd_draw_pixel(const struct driver *drv, uint16_t x, uint16_t y, uint16_t color)
-{
-    lcd_set_windows(drv, x, y, x + 1, y + 1);
-    send_data_16bit(drv, color);
-}
-#endif