uavcan:Build system specify architecture

src/modules/uavcan/CMakeLists.txt

@@ -34,21 +34,32 @@
 px4_add_git_submodule(TARGET git_uavcan PATH "libuavcan")
 
 set(UAVCAN_USE_CPP03 ON CACHE BOOL "uavcan cpp03")
-set(UAVCAN_PLATFORM stm32 CACHE STRING "uavcan platform")
+
+# The default is the stm32
+if(NOT UAVCAN_PLATFORM)
+	set(UAVCAN_PLATFORM stm32 CACHE STRING "uavcan platform")
+endif()
+
+# The default timer the 5
+if(NOT UAVCAN_TIMER)
+	set(UAVCAN_TIMER 5)
+endif()
 
 if(NOT config_uavcan_num_ifaces)
 	message(FATAL_ERROR "config_uavcan_num_ifaces not set")
 endif()
 
 string(TOUPPER "${OS}" OS_UPPER)
+string(TOUPPER "${UAVCAN_PLATFORM}" UAVCAN_PLATFORM_UPPER)
 add_definitions(
 		-DUAVCAN_CPP_VERSION=UAVCAN_CPP03
 		-DUAVCAN_MEM_POOL_BLOCK_SIZE=48
 		-DUAVCAN_NO_ASSERTIONS
-		-DUAVCAN_PLATFORM=stm32
-		-DUAVCAN_STM32_${OS_UPPER}=1
-		-DUAVCAN_STM32_NUM_IFACES=${config_uavcan_num_ifaces}
-		-DUAVCAN_STM32_TIMER_NUMBER=5
+		-DUAVCAN_PLATFORM=${UAVCAN_PLATFORM}
+		-DUAVCAN_DRIVER=uavcan_${UAVCAN_PLATFORM}
+		-DUAVCAN_${UAVCAN_PLATFORM_UPPER}_${OS_UPPER}=1
+		-DUAVCAN_${UAVCAN_PLATFORM_UPPER}_NUM_IFACES=${config_uavcan_num_ifaces}
+		-DUAVCAN_${UAVCAN_PLATFORM_UPPER}_TIMER_NUMBER=${UAVCAN_TIMER}
 		)
 
 add_subdirectory(libuavcan EXCLUDE_FROM_ALL)
@@ -64,7 +75,7 @@ px4_add_module(
 		libuavcan/libuavcan/include
 		libuavcan/libuavcan/include/dsdlc_generated
 		libuavcan/libuavcan_drivers/posix/include
-		libuavcan/libuavcan_drivers/stm32/driver/include
+		libuavcan/libuavcan_drivers/${UAVCAN_PLATFORM}/driver/include
 	SRCS
 		# Main
 		uavcan_main.cpp
@@ -89,5 +100,5 @@ px4_add_module(
 		# within libuavcan
 		libuavcan_dsdlc
 		uavcan
-		uavcan_stm32_driver
+		uavcan_${UAVCAN_PLATFORM}_driver
 	)