lorawan_lbm: Add LoRa Basics Modem LoRaWAN stack

This stack is based on the lora_basics_modem external module.

It provides configuration for LBM as well as a standalone
"main" LBM thread that needs to be manually started.

Signed-off-by: Félix Piédallu <[email protected]>

Author: Salamandar

include/zephyr/lorawan_lbm/lorawan_main_thread.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2024 Semtech Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef SUBSYS_LORAWAN_LBM_LBM_MAIN_THREAD_H
+#define SUBSYS_LORAWAN_LBM_LBM_MAIN_THREAD_H
+
+#include <zephyr/lorawan_lbm/lorawan_hal_init.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Initializes the LoRa Basics Modem callbacks and starts its work thread.
+ *
+ * @param event_callback The callback that will be called each time an modem event
+ * is raised internally
+ */
+
+void lora_basics_modem_start_work_thread(void (*event_callback)(void));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SUBSYS_LORAWAN_LBM_LBM_MAIN_THREAD_H */

subsys/CMakeLists.txt

@@ -46,6 +46,7 @@ add_subdirectory_ifdef(CONFIG_IMG_MANAGER dfu)
 add_subdirectory_ifdef(CONFIG_INPUT input)
 add_subdirectory_ifdef(CONFIG_JWT jwt)
 add_subdirectory_ifdef(CONFIG_LLEXT llext)
+add_subdirectory_ifdef(CONFIG_LORA_BASICS_MODEM lorawan_lbm)
 add_subdirectory_ifdef(CONFIG_MCTP mctp)
 add_subdirectory_ifdef(CONFIG_MODEM_MODULES modem)
 add_subdirectory_ifdef(CONFIG_NETWORKING net)

subsys/Kconfig

@@ -26,6 +26,7 @@ source "subsys/jwt/Kconfig"
 source "subsys/llext/Kconfig"
 source "subsys/logging/Kconfig"
 source "subsys/lorawan/Kconfig"
+source "subsys/lorawan_lbm/Kconfig"
 source "subsys/mctp/Kconfig"
 source "subsys/mem_mgmt/Kconfig"
 source "subsys/mgmt/Kconfig"

subsys/lorawan_lbm/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Copyright (c) 2024 Semtech Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+
+if(CONFIG_LORA_BASICS_MODEM)
+
+
+if(CONFIG_LORA_BASICS_MODEM_MAIN_THREAD)
+  zephyr_library()
+  zephyr_library_sources(
+    ${CMAKE_CURRENT_LIST_DIR}/lbm_main_thread.c
+  )
+endif()
+
+endif()