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esp32: Enable lv_binding_micropython as user C mod.
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‎micropython.cmake

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# This file is to be given as "make USER_C_MODULES=..." when building Micropython port
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# Include LVGL component, ignore KCONFIG
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idf_build_set_property(LV_MICROPYTHON 1)
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idf_build_component(${CMAKE_CURRENT_LIST_DIR}/lvgl)
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idf_build_set_property(COMPILE_DEFINITIONS "-DLV_KCONFIG_IGNORE" APPEND)
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separate_arguments(LV_CFLAGS_ENV UNIX_COMMAND $ENV{LV_CFLAGS})
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idf_build_set_property(COMPILE_DEFINITIONS "${LV_CFLAGS}" APPEND)
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idf_build_set_property(COMPILE_OPTIONS "-Wno-unused-function" APPEND)
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idf_build_set_property(SRCS "${LV_SRC}" APPEND)
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idf_build_set_property(INCLUDE_DIRS "${LV_INCLUDE}" APPEND)
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include(${CMAKE_CURRENT_LIST_DIR}/mkrules_usermod.cmake)
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# Add lv_bindings rules
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all_lv_bindings()
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# # # make usermod (target declared by Micropython for all user compiled modules) link to bindings
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# # # this way the bindings (and transitively lvgl_interface) get proper compilation flags
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# target_link_libraries(usermod INTERFACE usermod_lvgl)
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file(GLOB_RECURSE SOURCES ${CMAKE_CURRENT_LIST_DIR}/lvgl/src/*.c)
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add_library(lvgl_interface INTERFACE)
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target_sources(lvgl_interface INTERFACE ${SOURCES})
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target_compile_options(lvgl_interface INTERFACE ${LV_CFLAGS})
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# # lvgl bindings target (the mpy module)
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add_library(usermod_lvgl INTERFACE)
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target_sources(usermod_lvgl INTERFACE ${LV_SRC})
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target_include_directories(usermod_lvgl INTERFACE ${LV_INCLUDE})
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file(WRITE ${LV_MP} "")
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target_link_libraries(usermod_lvgl INTERFACE lvgl_interface)
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# # # make usermod (target declared by Micropython for all user compiled modules) link to bindings
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# # # this way the bindings (and transitively lvgl_interface) get proper compilation flags
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target_link_libraries(usermod INTERFACE usermod_lvgl)
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‎mkrules_usermod.cmake

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find_package(Python3 REQUIRED COMPONENTS Interpreter)
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find_program(AWK awk mawk gawk)
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set(LV_BINDINGS_DIR ${CMAKE_CURRENT_LIST_DIR})
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# Common function for creating LV bindings
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function(lv_bindings)
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set(_options)
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set(_one_value_args OUTPUT)
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set(_multi_value_args INPUT DEPENDS COMPILE_OPTIONS PP_OPTIONS GEN_OPTIONS FILTER)
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cmake_parse_arguments(
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PARSE_ARGV 0 LV
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"${_options}"
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"${_one_value_args}"
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"${_multi_value_args}"
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)
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set(LV_PP ${LV_OUTPUT}.pp)
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set(LV_MPY_METADATA ${LV_OUTPUT}.json)
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add_custom_command(
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OUTPUT
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${LV_PP}
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COMMAND
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${CMAKE_C_COMPILER} -E -DPYCPARSER ${LV_COMPILE_OPTIONS} ${LV_PP_OPTIONS} "${LV_CFLAGS}" -I ${LV_BINDINGS_DIR}/pycparser/utils/fake_libc_include ${MICROPY_CPP_FLAGS} ${LV_INPUT} > ${LV_PP}
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DEPENDS
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${LV_INPUT}
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${LV_DEPENDS}
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${LV_BINDINGS_DIR}/pycparser/utils/fake_libc_include
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IMPLICIT_DEPENDS
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C ${LV_INPUT}
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VERBATIM
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COMMAND_EXPAND_LISTS
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)
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# if(ESP_PLATFORM)
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# target_compile_options(${COMPONENT_LIB} PRIVATE ${LV_COMPILE_OPTIONS})
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# else()
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# target_compile_options(usermod_lv_bindings INTERFACE ${LV_COMPILE_OPTIONS})
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# endif()
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if (DEFINED LV_FILTER)
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set(LV_PP_FILTERED ${LV_PP}.filtered)
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set(LV_AWK_CONDITION)
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foreach(_f ${LV_FILTER})
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string(APPEND LV_AWK_CONDITION "\$3!~\"${_f}\" && ")
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endforeach()
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string(APPEND LV_AWK_COMMAND "\$1==\"#\"{p=(${LV_AWK_CONDITION} 1)} p{print}")
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# message("AWK COMMAND: ${LV_AWK_COMMAND}")
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add_custom_command(
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OUTPUT
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${LV_PP_FILTERED}
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COMMAND
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${AWK} ${LV_AWK_COMMAND} ${LV_PP} > ${LV_PP_FILTERED}
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DEPENDS
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${LV_PP}
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VERBATIM
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COMMAND_EXPAND_LISTS
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)
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else()
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set(LV_PP_FILTERED ${LV_PP})
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endif()
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add_custom_command(
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OUTPUT
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${LV_OUTPUT}
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COMMAND
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${Python3_EXECUTABLE} ${LV_BINDINGS_DIR}/gen/gen_mpy.py ${LV_GEN_OPTIONS} -MD ${LV_MPY_METADATA} -E ${LV_PP_FILTERED} ${LV_INPUT} > ${LV_OUTPUT} || (rm -f ${LV_OUTPUT} && /bin/false)
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DEPENDS
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${LV_BINDINGS_DIR}/gen/gen_mpy.py
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${LV_PP_FILTERED}
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COMMAND_EXPAND_LISTS
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)
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endfunction()
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# Definitions for specific bindings
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set(LVGL_DIR ${LV_BINDINGS_DIR}/lvgl)
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set(LV_MP ${CMAKE_BINARY_DIR}/lv_mp.c)
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# if(ESP_PLATFORM)
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# set(LV_ESPIDF ${CMAKE_BINARY_DIR}/lv_espidf.c)
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# endif()
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# Function for creating all specific bindings
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function(all_lv_bindings)
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# LVGL bindings
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file(GLOB_RECURSE LVGL_HEADERS ${LVGL_DIR}/src/*.h ${LV_BINDINGS_DIR}/lv_conf.h)
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lv_bindings(
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OUTPUT
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${LV_MP}
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INPUT
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${LVGL_DIR}/lvgl.h
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DEPENDS
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${LVGL_HEADERS}
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GEN_OPTIONS
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-M lvgl -MP lv
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)
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# ESPIDF bindings
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# if(ESP_PLATFORM)
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# file(GLOB_RECURSE LV_ESPIDF_HEADERS ${IDF_PATH}/components/*.h ${LV_BINDINGS_DIR}/driver/esp32/*.h)
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# lv_bindings(
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# OUTPUT
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# ${LV_ESPIDF}
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# INPUT
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# ${LV_BINDINGS_DIR}/driver/esp32/espidf.h
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# DEPENDS
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# ${LV_ESPIDF_HEADERS}
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# GEN_OPTIONS
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# -M espidf
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# FILTER
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# i2s_ll.h
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# i2s_hal.h
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# esp_intr_alloc.h
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# soc/spi_periph.h
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# rom/ets_sys.h
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# soc/sens_struct.h
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# soc/rtc.h
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# driver/periph_ctrl.h
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# )
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# endif(ESP_PLATFORM)
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endfunction()
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# Add includes to CMake component
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set(LV_INCLUDE
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${LV_BINDINGS_DIR}
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)
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# Add sources to CMake component
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set(LV_SRC
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${LV_MP}
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)
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# if(ESP_PLATFORM)
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# LIST(APPEND LV_SRC
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# ${LV_BINDINGS_DIR}/driver/esp32/espidf.c
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# ${LV_BINDINGS_DIR}/driver/esp32/modrtch.c
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# ${LV_BINDINGS_DIR}/driver/esp32/sh2lib.c
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# ${LV_ESPIDF}
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# )
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# endif(ESP_PLATFORM)

‎ports/esp32/manifest.py

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module("lv_utils.py", base_path="../../lib")

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