cmake_minimum_required(VERSION 3.13)

#
# set this option in your IDE (CLion-->Build-->CMake --2-Profiles--> -DCOMPUTER=ON
#
#option(COMPUTER "Testing on a x86 System" OFF)
#option(MICROCONTROLLER "Build for Flashing AVR" ON)

add_definitions(-DIRQS=5000)

if (COMPUTER)
    SET(FILES_PRINT
            )
else ()
    SET(FILES_PRINT
            )
endif ()
SET(FILES_CONTROL
        )
SET(FILES_INPUT
        input/switches.c
        #input/adc.c
        input/motorMonitoring.c)
SET(FILES_CONFIG
        properties.c
        menu.c
        )
SET(FILES_OUTPUT
        output/outputs.c
        output/motor.c
        output/display.c
        output/display_strings.c output/clock.c output/clock.h)
SET(FILES_SIMULATION
        )
SET(FILES_TEST
        )

SET(FILES_TWI
        i2c/twi_master.c
        i2c/i2c_lcd.c
        i2c/i2c_lcd_2.c
        )
SET(FILES_LIBS
        countdown.c
        )
SET(FILES_
        timer1.c
        timer2.c
        inits.c
        ${FILES_LIBS}
        ${FILES_CONTROL}
        ${FILES_INPUT}
        ${FILES_OUTPUT}
        ${FILES_CONFIG})

if (COMPUTER)
    SET(MICROCONTROLLER OFF)
    message(WARNING "Settting up build for x68")
    SET(FILES main.c
            ${FILES_}
            ${FILES_SIMULATION})     # <-- Quelldatei(en)


    add_definitions(-DALLOW_PRINTF)
    add_definitions(-DGCC)
    add_definitions(-DTEST)
    project(HelloC_Computer C)

    SET(CMAKE_C_STANDARD 99)
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pthread")
    add_definitions(-DCMAKE_BUILD_TYPE=Debug)

    #SET(SOURCE_FILES ${FILES})
    add_executable(${CMAKE_PROJECT_NAME} main.c ${FILES})


    include_directories(/opt/local/avr/include)
endif ()

if (MICROCONTROLLER)
    message(STATUS "Settting up build for AVR")
    SET(FILES main.c
            ${FILES_}
            #${FILES_TEST}
            ${FILES_TWI})     # <-- Quelldatei(en)
    add_definitions(-DAVR_GCC)
    add_definitions(-DTWI)
endif ()


#============================================================================================
if (MICROCONTROLLER)
    CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)

    SET(CMAKE_SYSTEM_NAME Generic)

    #============================================================================================
    PROJECT(HelloC_AVR)   # <-- Prjektname

    #SET(FILES main.c)		  	# <-- Quelldatei(en)

    SET(DEVICE atmega88)  # <-- MCU
    SET(FREQ 8000000)   # <-- MCU-Frequenz
    SET(F_CPU FREQ)

    #SET(AVRBIN /opt/local/bin)		# <-- Toolchain
    SET(AVRBIN /usr/bin)      # <-- Toolchain
    SET(AVROBJCOPY avr-objcopy)  # <--     ""
    SET(AVRSIZE avr-size)   # <--     ""
    SET(AVRDUDE avrdude)   # <--     ""

    SET(PROGRAMMER stk500)  # <-- Programmertype
    SET(PORT /dev/ttyUSB0)            # <-- USB bzw. Schnittstelle z.B. /dev/cu.usbserial....
    SET(BAUD 115200)	        	# <-- Übertragungsrate

    SET(EEPROM YES)                # <-- soll eine x.eep Datei erstellt werden?
    SET(FLASH YES)           # <-- soll Geflasht werden?

    #============================================================================================

    SET(CMAKE_C_COMPILER ${AVRBIN}/avr-gcc)
    SET(CMAKE_CXX_COMPILER ${AVRBIN}/avr-g++)

    #Binaryinterface (ABI)
        #-funsigned-char
        #-funsigned-bitfields
        #-fpack-struct
        #-fshort-enums
    add_compile_options(-funsigned-char) # CMake 2.8.12 or newer
    add_compile_options(-fshort-enums)
    add_compile_options(-ffunction-sections)
    add_compile_options(-fdata-sections)

    add_compile_options(-Wall)#all Warnings
    add_compile_options(-std=gnu99)

    SET(COMMON_FLAGS -Os -mmcu=${DEVICE} -DF_CPU=${FREQ}UL -Wl,--gc-sections)
    add_compile_options(${COMMON_FLAGS}) #(__AVR_ATmega??__)
    add_link_options(${COMMON_FLAGS})

    #SET(CMAKE_C_FLAGS "-Os -mmcu=${DEVICE} -DF_CPU=${FREQ}UL -std=gnu99 -Wl,--gc-sections")
    #SET(CMAKE_CXX_FLAGS "-Os -mmcu=${DEVICE} -DF_CPU=${FREQ}UL -Wl,--gc-sections")


    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin")
    set(CMAKE_PREFIX_PATH /opt/local/avr)
    set(CMAKE_EXECUTABLE_SUFFIX ".elf")

    include_directories(/opt/local/avr/include)

    SET(SOURCE_FILES ${FILES})

    #============================================================================================

    ADD_EXECUTABLE(${CMAKE_PROJECT_NAME} ${SOURCE_FILES})

    ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVROBJCOPY} -O ihex -R .eeprom ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.elf ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.hex)

    if (EEPROM)
        ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVROBJCOPY} -O ihex -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.elf ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.eep)
    endif (EEPROM)

    ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRSIZE} --target=ihex ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.hex)
    ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRSIZE} --target=ihex --mcu=${DEVICE} -C ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.elf)

    if (FLASH)
        ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRDUDE} -p${DEVICE} -c${PROGRAMMER} -P${PORT} -b${BAUD} -U flash:w:${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.hex)
        ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRDUDE} -p${DEVICE} -c${PROGRAMMER} -P${PORT} -b${BAUD} -U eeprom:w:${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_PROJECT_NAME}.eep)
        #ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRDUDE} -p${DEVICE} -c${PROGRAMMER} -P${PORT} -b${BAUD} -U -U lfuse:w:<0x62>:m)
        #ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRDUDE} -p${DEVICE} -c${PROGRAMMER} -P${PORT} -b${BAUD} -U -U hfuse:w:<0xDE>:m)
        #ADD_CUSTOM_COMMAND(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD COMMAND ${AVRBIN}/${AVRDUDE} -p${DEVICE} -c${PROGRAMMER} -P${PORT} -b${BAUD} -U -U efuse:w:<0x01>:m)
    endif (FLASH)


endif (MICROCONTROLLER)