1 files changed, 74 insertions, 0 deletions
diff --git a/nrf51/utils.cmake b/nrf51/utils.cmake
new file mode 100644
index 0000000..ec92b78
--- /dev/null
+++ b/nrf51/utils.cmake
@@ -0,0 +1,74 @@
+function(mcu_add_executable TARGET)
+    target_sources(${TARGET} PUBLIC
+            "${MCU_NRF51_SDK_PATH}/components/toolchain/system_nrf51.c"
+            "${MCU_NRF51_SDK_PATH}/components/toolchain/gcc/gcc_startup_nrf51.S")
+    target_include_directories(${TARGET} PUBLIC
+            ${MCU_NRF51_SDK_PATH}/components/device
+            ${MCU_NRF51_SDK_PATH}/components/toolchain
+            ${MCU_NRF51_SDK_PATH}/components/toolchain/gcc)
+
+    target_compile_definitions(${TARGET} PUBLIC NRF51)
+
+    target_compile_options(${TARGET} PUBLIC "-mcpu=cortex-m0" "-mthumb" "-mabi=aapcs" "--std=gnu99" "-Wall" "-mfloat-abi=soft")
+
+    target_include_directories(${TARGET} PUBLIC
+            ${MCU_NRF51_SDK_PATH}/components/toolchain/cmsis/include)
+
+    target_link_libraries(${TARGET} PUBLIC "-L${MCU_NRF51_SDK_PATH}/components/toolchain/gcc")
+    target_link_libraries(${TARGET} PUBLIC "-T${MCU_NRF51_SDK_PATH}/components/toolchain/gcc/nrf51_xxac.ld")
+endfunction()
+
+function(mcu_nrf51_add_softdevice TARGET SOFTDEVICE)
+
+    if (SOFTDEVICE STREQUAL s130)
+        string(TOUPPER D_SOFTDEVICE ${SOFTDEVICE})
+        target_include_directories(${TARGET} PUBLIC ${MCU_NRF51_SDK_PATH}/components/softdevice/${SOFTDEVICE}/headers)
+    else ()
+        message(FATAL_ERROR "Unsupported softdevice: ${SOFTDEVICE}")
+    endif ()
+
+    target_compile_definitions(${TARGET} PUBLIC ${D_SOFTDEVICE})
+    target_compile_definitions(${TARGET} PUBLIC SOFTDEVICE_PRESENT)
+endfunction()
+
+# Toolchain files are executed many times when detecting c/c++ compilers, but it will only read the cache on the first
+# exeuction so the paths has to be saved to the environment as it is shared between executions.
+function(mcu_nrf51_detect_sdk)
+    if (MCU_NRF51_SDK_PATH)
+        # message("NRF51 SDK already found: ${MCU_NRF51_SDK_PATH}")
+        return()
+    endif ()
+
+    set(MCU_NRF51_SDK_PATH "$ENV{_MCU_NRF51_SDK_PATH}")
+
+    if (MCU_NRF51_SDK_PATH)
+        # message("NRF51 SDK already found from ENV: ${MCU_NRF51_SDK_PATH}")
+        return()
+    endif ()
+
+    message("Detecting NRF51 SDK")
+
+    if (NOT MCU_NRF51_SDK)
+        message(FATAL_ERROR "MCU_NRF51_SDK parameter cannot be empty.")
+    endif ()
+
+    # message("MCU_NRF51_SDK=${MCU_NRF51_SDK}")
+    get_filename_component(MCU_NRF51_SDK_PATH "${MCU_NRF51_SDK}" ABSOLUTE)
+    # message("MCU_NRF51_SDK_PATH=${MCU_NRF51_SDK_PATH}")
+
+    set(ENV{_MCU_NRF51_SDK_PATH} "${MCU_NRF51_SDK_PATH}")
+
+    set(NOTES ${MCU_NRF51_SDK_PATH}/documentation/release_notes.txt)
+
+    if (NOT EXISTS ${NOTES})
+        message(FATAL_ERROR "Could not find 'documentation/release_notes.txt' under NRF SDK path: ${NOTES}")
+    endif ()
+
+    file(READ ${NOTES} NOTES LIMIT 100)
+
+    # message("NOTES: ${NOTES}")
+    message("MCU_NRF51_SDK_VERSION: ${MCU_NRF51_VERSION}")
+
+    # string(SUBSTRING <string> <begin> <length> <output variable>)
+    set(MCU_NRF51_SDK_PATH "${MCU_NRF51_SDK_PATH}" CACHE PATH "" FORCE)
+endfunction()