Support libmctp as a zephyr module

Signed-off-by: Tom Burdick <[email protected]>

Author: teburd

serial.c

@@ -5,6 +5,7 @@
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
 
 #include "crc-16-ccitt.h"
 
@@ -25,6 +26,10 @@ static const size_t write(int fd, void *buf, size_t len)
 
 #define pr_fmt(x) "serial: " x
 
+#ifdef CONFIG_MCTP
+#define typeof __typeof__
+#endif
+
 /*
  * @fn: A function that will copy data from the buffer at src into the dst object
  * @dst: An opaque object to pass as state to fn
@@ -49,6 +54,7 @@ static const size_t write(int fd, void *buf, size_t len)
 		len ? wrote : 0;                                               \
 	})
 
+
 static ssize_t mctp_serial_write(int fildes, const void *buf, size_t nbyte)
 {
 	ssize_t wrote;

zephyr/CMakeLists.txt

@@ -0,0 +1,23 @@
+# Copyright (c) 2024 Intel Corporation.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+set(MCTP_SRC ${CMAKE_CURRENT_SOURCE_DIR}/..)
+
+zephyr_interface_library_named(mctp)
+target_link_libraries(zephyr_interface INTERFACE mctp)
+target_include_directories(mctp INTERFACE ${MCTP_SRC})
+
+zephyr_library_named(modules_mctp)
+zephyr_library_link_libraries(mctp)
+
+zephyr_library_sources_ifdef(
+	CONFIG_MCTP
+	${MCTP_SRC}/alloc.c 
+	${MCTP_SRC}/crc32.c
+	${MCTP_SRC}/core.c
+	${MCTP_SRC}/log.c
+	${MCTP_SRC}/libmctp.h
+	${MCTP_SRC}/serial.c
+	${MCTP_SRC}/crc-16-ccitt.c
+)

zephyr/Kconfig

@@ -0,0 +1,7 @@
+# Copyright (c) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config MCTP
+	bool "Enable MCTP"
+	help
+	  Build libmctp module during build process.

zephyr/module.yml

@@ -0,0 +1,4 @@
+name: libmctp
+build:
+  cmake: zephyr 
+  kconfig: zephyr/Kconfig