Add Generic CMSIS Network Interface

Author: HTRamsey

CMakeLists.txt

@@ -56,6 +56,7 @@ set(FREERTOS_PLUS_TCP_NETWORK_IF "" CACHE STRING "FreeRTOS Plus TCP Network Inte
 set(FREERTOS_PLUS_TCP_NETWORK_IF_LIST
     A_CUSTOM_NETWORK_IF
     ATSAM43 ATSAME5x # AT
+    CMSIS
     DRIVER_SAM
     ESP32
     KSZ8851SNL
@@ -99,6 +100,7 @@ if(NOT FREERTOS_PLUS_TCP_NETWORK_IF IN_LIST FREERTOS_PLUS_TCP_NETWORK_IF_LIST )
         " A_CUSTOM_NETWORK_IF    Target: User Defined\n"
         " ATSAM4E                Target: ATSAM4E            Tested: TODO\n"
         " ATSAME5x               Target: ATSAME5x           Tested: TODO\n"
+        " CMSIS                 Target: Generic CMSIS Driver Tested: TODO\n"
         " DRIVER_SAM             Target: Driver SAM         Tested: TODO\n"
         " ESP32                  Target: ESP-32             Tested: TODO\n"
         " KSZ8851SNL             Target: ksz8851snl         Tested: TODO\n"
@@ -175,4 +177,4 @@ add_subdirectory(test)
 
 if(PROJECT_IS_TOP_LEVEL)
     FetchContent_MakeAvailable(freertos_kernel cmock)
-endif()
+endif()

source/portable/NetworkInterface/CMSIS/CMakeLists.txt

@@ -0,0 +1,59 @@
+# Copyright 2024 Arm Limited and/or its affiliates
+# <open-source-office@arm.com>
+# SPDX-License-Identifier: MIT
+
+if (NOT (FREERTOS_PLUS_TCP_NETWORK_IF STREQUAL "CMSIS") )
+    return()
+endif()
+
+# Optional:
+#   - FREERTOS_PLUS_TCP_CMSIS_DRIVER_SOURCES:
+#       Semicolon-separated list of board-specific CMSIS MAC/PHY driver sources
+#       (example: EMAC_STM32F7xx.c;PHY_LAN8742A.c)
+#   - FREERTOS_PLUS_TCP_CMSIS_DRIVER_INCLUDE_DIRS:
+#       Semicolon-separated include directories required by those drivers
+set(FREERTOS_PLUS_TCP_CMSIS_DRIVER_SOURCES "" CACHE STRING "Extra CMSIS MAC/PHY driver source files")
+set(FREERTOS_PLUS_TCP_CMSIS_DRIVER_INCLUDE_DIRS "" CACHE STRING "Extra include directories for CMSIS MAC/PHY drivers")
+
+#------------------------------------------------------------------------------
+add_library( freertos_plus_tcp_network_if STATIC )
+
+target_sources( freertos_plus_tcp_network_if
+  PRIVATE
+    NetworkInterface.c
+)
+
+target_include_directories( freertos_plus_tcp_network_if
+  PRIVATE
+    Driver/Include
+)
+
+if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/Device/Include")
+  target_include_directories( freertos_plus_tcp_network_if
+    PRIVATE
+      Device/Include
+  )
+endif()
+
+if(FREERTOS_PLUS_TCP_CMSIS_DRIVER_SOURCES)
+  target_sources( freertos_plus_tcp_network_if
+    PRIVATE
+      ${FREERTOS_PLUS_TCP_CMSIS_DRIVER_SOURCES}
+  )
+endif()
+
+if(FREERTOS_PLUS_TCP_CMSIS_DRIVER_INCLUDE_DIRS)
+  target_include_directories( freertos_plus_tcp_network_if
+    PRIVATE
+      ${FREERTOS_PLUS_TCP_CMSIS_DRIVER_INCLUDE_DIRS}
+  )
+endif()
+
+target_link_libraries( freertos_plus_tcp_network_if
+  PUBLIC
+    freertos_plus_tcp_port
+    freertos_plus_tcp_network_if_common
+  PRIVATE
+    freertos_kernel
+    freertos_plus_tcp
+)