Move zephyr-specific build into zephyr module format

firmware/libsi/CMakeLists.txt

@@ -5,57 +5,38 @@ cmake_minimum_required(VERSION "3.21")
 project(si LANGUAGES C)
 
 # Define the library
-add_library(si STATIC "src/crc8.c" "src/device/commands.c" "src/device/gc_controller.c")
-
-# Configure SI peripheral selection
-if(DEFINED SI_RX_TIMER_IDX)
-  target_compile_definitions(si PUBLIC SI_RX_TIMER_IDX=${SI_RX_TIMER_IDX})
-endif()
-
-if(DEFINED SI_TX_USART_IDX)
-  target_compile_definitions(si PUBLIC SI_TX_USART_IDX=${SI_TX_USART_IDX})
-endif()
+add_library(si STATIC src/crc8.c src/device/commands.c src/device/gc_controller.c)
 
 # Specify the include paths
 target_include_directories(si PUBLIC include)
 
 # EFR32 platform specific settings
 if(CMAKE_CROSSCOMPILING)
-  if(DEFINED ZEPHYR_BASE)
-    # Building for EFR32 using Zephyr
-    # Note: rail_config.h and rail_config.c are not automatically generated by Zephyr,
-    # so we expect them to be already present in the src/autogen directory.
-    if(NOT CONFIG_SOC_FAMILY_SILABS_S2)
-      message(FATAL_ERROR "Only EFR32 Series 2 SoCs are currently supported.")
-    endif()
-
-    # Pull in the Zephyr interface library
-    target_link_libraries(si PUBLIC zephyr_interface)
-
-    # Pull in additional EMLIB sources required for libsi
-    zephyr_library_sources(
-      ${ZEPHYR_HAL_SILABS_MODULE_DIR}/simplicity_sdk/platform/emlib/src/em_timer.c
-      ${ZEPHYR_HAL_SILABS_MODULE_DIR}/simplicity_sdk/platform/emlib/src/em_ldma.c
-      ${ZEPHYR_HAL_SILABS_MODULE_DIR}/simplicity_sdk/platform/emdrv/dmadrv/src/dmadrv.c
+  # Building for EFR32 using gecko-sdk-cmake
+  if(NOT GeckoSDK_FOUND)
+    include(FetchContent)
+    FetchContent_Declare(
+      GeckoSDK
+      GIT_REPOSITORY https://github.com/loopj/gecko-sdk-cmake.git
+      GIT_TAG main
     )
-  else()
-    # Building for EFR32 using gecko-sdk-cmake
-    if(NOT GeckoSDK_FOUND)
-      include(FetchContent)
-      FetchContent_Declare(
-        GeckoSDK
-        GIT_REPOSITORY https://github.com/loopj/gecko-sdk-cmake.git
-        GIT_TAG main
-      )
-      FetchContent_MakeAvailable(GeckoSDK)
-    endif()
+    FetchContent_MakeAvailable(GeckoSDK)
+  endif()
 
-    # Depend on emlib from the Gecko SDK
-    target_link_libraries(si GeckoSDK::emlib GeckoSDK::emdrv::dmadrv)
+  # Configure SI peripheral selection
+  if(DEFINED SI_RX_TIMER_IDX)
+    target_compile_definitions(si PUBLIC SI_RX_TIMER_IDX=${SI_RX_TIMER_IDX})
+  endif()
+
+  if(DEFINED SI_TX_USART_IDX)
+    target_compile_definitions(si PUBLIC SI_TX_USART_IDX=${SI_TX_USART_IDX})
   endif()
 
   # Add the platform-specific source files
   target_sources(si PRIVATE "src/platform/efr32/si_efr32_emlib.c")
+
+  # Depend on emlib from the Gecko SDK
+  target_link_libraries(si GeckoSDK::emlib GeckoSDK::emdrv::dmadrv)
 endif()
 
 # Add the test target

firmware/libsi/zephyr/CMakeLists.txt

@@ -0,0 +1,35 @@
+# Define the library
+zephyr_library_named(si)
+
+# Set the library path
+set(LIBSI_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
+
+# Add the common source files
+zephyr_library_sources(
+  ${LIBSI_DIR}/src/crc8.c
+  ${LIBSI_DIR}/src/device/commands.c
+  ${LIBSI_DIR}/src/device/gc_controller.c
+)
+
+# Specify the include paths
+zephyr_include_directories(${LIBSI_DIR}/include)
+
+# Link against Zephyr
+target_link_libraries(si PUBLIC zephyr_interface)
+
+# EFR32-specific settings
+if(DEFINED SI_RX_TIMER_IDX)
+  target_compile_definitions(si PUBLIC SI_RX_TIMER_IDX=${SI_RX_TIMER_IDX})
+endif()
+
+if(DEFINED SI_TX_USART_IDX)
+  target_compile_definitions(si PUBLIC SI_TX_USART_IDX=${SI_TX_USART_IDX})
+endif()
+
+zephyr_library_sources(${LIBSI_DIR}/src/platform/efr32/si_efr32_emlib.c)
+
+zephyr_library_sources(
+  ${ZEPHYR_HAL_SILABS_MODULE_DIR}/simplicity_sdk/platform/emlib/src/em_timer.c
+  ${ZEPHYR_HAL_SILABS_MODULE_DIR}/simplicity_sdk/platform/emlib/src/em_ldma.c
+  ${ZEPHYR_HAL_SILABS_MODULE_DIR}/simplicity_sdk/platform/emdrv/dmadrv/src/dmadrv.c
+)

firmware/libsi/zephyr/module.yml

@@ -0,0 +1,3 @@
+name: libsi
+build:
+  cmake: zephyr

firmware/libwavebird/CMakeLists.txt

@@ -12,41 +12,25 @@ target_include_directories(wavebird PRIVATE src/autogen PUBLIC include)
 
 # EFR32 platform specific settings
 if(CMAKE_CROSSCOMPILING)
-  if(DEFINED ZEPHYR_BASE)
-    # Building for EFR32 using Zephyr
-    # Note: rail_config.h and rail_config.c are not automatically generated by Zephyr,
-    # so we expect them to be already present in the src/autogen directory.
-    if(NOT CONFIG_SOC_FAMILY_SILABS_S2)
-      message(FATAL_ERROR "Only EFR32 Series 2 SoCs are currently supported.")
-    endif()
-
-    if(NOT CONFIG_SOC_GECKO_USE_RAIL)
-      message(FATAL_ERROR "Custom radio PHY is required for EFR32 platforms, set CONFIG_SOC_GECKO_CUSTOM_RADIO_PHY in prj.conf.")
-    endif()
-
-    # Pull in the Zephyr interface library
-    target_link_libraries(wavebird PUBLIC zephyr_interface)
-  else()
-    # Building for EFR32 using gecko-sdk-cmake
-    if(NOT GeckoSDK_FOUND)
-      include(FetchContent)
-      FetchContent_Declare(
-        GeckoSDK
-        GIT_REPOSITORY https://github.com/loopj/gecko-sdk-cmake.git
-        GIT_TAG main
-      )
-      FetchContent_MakeAvailable(GeckoSDK)
-    endif()
-
-    # Configure automatic generation of rail_config.c and rail_config.h files
-    set_rail_config_paths("config/rail/radio_settings_${GECKO_SDK_RAIL_LIB_NAME}.radioconf" "src/autogen")
-
-    # Depend on emlib and rail_lib from the Gecko SDK
-    target_link_libraries(wavebird GeckoSDK::emlib GeckoSDK::rail_lib)
+  # Building for EFR32 using gecko-sdk-cmake
+  if(NOT GeckoSDK_FOUND)
+    include(FetchContent)
+    FetchContent_Declare(
+      GeckoSDK
+      GIT_REPOSITORY https://github.com/loopj/gecko-sdk-cmake.git
+      GIT_TAG main
+    )
+    FetchContent_MakeAvailable(GeckoSDK)
   endif()
 
+  # Configure automatic generation of rail_config.c and rail_config.h files
+  set_rail_config_paths("config/rail/radio_settings_${GECKO_SDK_RAIL_LIB_NAME}.radioconf" "src/autogen")
+
   # Add platform-specific source files
   target_sources(wavebird PRIVATE "src/platform/efr32/radio_efr32.c" "src/autogen/rail_config.c")
+
+  # Depend on emlib and rail_lib from the Gecko SDK
+  target_link_libraries(wavebird GeckoSDK::emlib GeckoSDK::rail_lib)
 endif()
 
 # Add the test target

firmware/libwavebird/zephyr/CMakeLists.txt

@@ -0,0 +1,25 @@
+# Define the library
+zephyr_library_named(wavebird)
+
+# Set the library path
+set(LIBWAVEBIRD_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
+
+# Add the source files
+zephyr_library_sources(
+  ${LIBWAVEBIRD_DIR}/src/bch3121.c
+  ${LIBWAVEBIRD_DIR}/src/packet.c
+)
+
+# Specify the include paths
+zephyr_include_directories(${LIBWAVEBIRD_DIR}/include)
+
+# Link against Zephyr
+target_link_libraries(wavebird PUBLIC zephyr_interface)
+
+# EFR32-specific settings
+zephyr_library_sources(
+  ${LIBWAVEBIRD_DIR}/src/autogen/rail_config.c
+  ${LIBWAVEBIRD_DIR}/src/platform/efr32/radio_efr32.c
+)
+
+zephyr_include_directories(${LIBWAVEBIRD_DIR}/src/autogen)

firmware/libwavebird/zephyr/module.yml

@@ -0,0 +1,3 @@
+name: libwavebird
+build:
+  cmake: zephyr