manifest: add lora-basics-modem module

Import the lora-basics-modem module as an alternate backend for LoRa
and LoRaWAN, since loramac-node has been deprecated.

Support is currently limited and experimental.

Signed-off-by: Jordan Yates <jordan@embeint.com>

Author: JordanYates

modules/Kconfig

@@ -99,6 +99,9 @@ comment "Lz4 module not available."
 comment "loramac-node module not available."
 	depends on !ZEPHYR_LORAMAC_NODE_MODULE
 
+comment "LoRa Basics Modem module not available."
+	depends on !ZEPHYR_LORA_BASICS_MODEM_MODULE
+
 comment "CANopenNode module not available."
 	depends on !ZEPHYR_CANOPENNODE_MODULE
 

modules/lora_basics_modem/CMakeLists.txt

@@ -0,0 +1,26 @@
+# Copyright (c) 2025 Embeint Inc
+# SPDX-License-Identifier: Apache-2.0
+
+if(CONFIG_USE_LORA_BASICS_MODEM_DRIVERS)
+
+  set(LORA_BASICS_MODEM_DIR ${ZEPHYR_CURRENT_MODULE_DIR})
+  set(LBM_LIB_DIR ${LORA_BASICS_MODEM_DIR}/lbm_lib)
+  set(LBM_SMTC_MODEM_CORE_DIR ${LBM_LIB_DIR}/smtc_modem_core)
+  set(LBM_RADIO_DRIVERS_DIR ${LBM_LIB_DIR}/smtc_modem_core/radio_drivers)
+
+  if(TARGET lora_basics_modem)
+    set(ZEPHYR_CURRENT_LIBRARY lora_basics_modem)
+  else()
+    zephyr_library_named(lora_basics_modem)
+  endif()
+
+  zephyr_library_include_directories(${LBM_SMTC_MODEM_CORE_DIR}/smtc_ral/src)
+  zephyr_library_include_directories(${LBM_SMTC_MODEM_CORE_DIR}/smtc_ralf/src)
+
+  if(CONFIG_LORA_SX126X)
+    include(sx126x.cmake)
+  endif()
+  if(CONFIG_LORA_SX127X)
+    include(sx127x.cmake)
+  endif()
+endif()

modules/lora_basics_modem/Kconfig

@@ -0,0 +1,11 @@
+# Copyright (c) 2024 Semtech Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+# Top-level configuration file for LoRa Basics Modem containing LoRa
+# transceiver drivers and LBM LoRaWAN stack
+
+config ZEPHYR_LORA_BASICS_MODEM_MODULE
+	bool
+
+config USE_LORA_BASICS_MODEM_DRIVERS
+        bool

modules/lora_basics_modem/sx126x.cmake

@@ -0,0 +1,24 @@
+# Copyright (c) 2024 Semtech Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+# Used by LBM
+zephyr_library_compile_definitions(SX126X)
+zephyr_library_compile_definitions(SX126X_TRANSCEIVER)
+
+# Allow modem options
+set(ALLOW_CSMA_BUILD true)
+
+set(LBM_SX126X_LIB_DIR ${LBM_RADIO_DRIVERS_DIR}/sx126x_driver/src)
+zephyr_include_directories(${LBM_SX126X_LIB_DIR})
+
+#-----------------------------------------------------------------------------
+# Radio specific sources
+#-----------------------------------------------------------------------------
+zephyr_library_sources(
+  ${LBM_SX126X_LIB_DIR}/lr_fhss_mac.c
+  ${LBM_SX126X_LIB_DIR}/sx126x.c
+  ${LBM_SX126X_LIB_DIR}/sx126x_driver_version.c
+  ${LBM_SX126X_LIB_DIR}/sx126x_lr_fhss.c
+  ${LBM_SMTC_MODEM_CORE_DIR}/smtc_ral/src/ral_sx126x.c
+  ${LBM_SMTC_MODEM_CORE_DIR}/smtc_ralf/src/ralf_sx126x.c
+)

modules/lora_basics_modem/sx127x.cmake

@@ -0,0 +1,28 @@
+# Copyright (c) 2024 Semtech Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+# Used by LBM
+zephyr_library_compile_definitions(SX127X)
+zephyr_library_compile_definitions(SX127X_TRANSCEIVER)
+
+if(CONFIG_DT_HAS_SEMTECH_SX1272_ENABLED)
+  zephyr_library_compile_definitions(SX1272)
+endif()
+if(CONFIG_DT_HAS_SEMTECH_SX1276_ENABLED)
+  zephyr_library_compile_definitions(SX1276)
+endif()
+
+# Allow modem options
+set(ALLOW_CSMA_BUILD true)
+
+set(LBM_SX127X_LIB_DIR ${LBM_RADIO_DRIVERS_DIR}/sx127x_driver/src)
+zephyr_include_directories(${LBM_SX127X_LIB_DIR})
+
+#-----------------------------------------------------------------------------
+# Radio specific sources
+#-----------------------------------------------------------------------------
+zephyr_library_sources(
+  ${LBM_SX127X_LIB_DIR}/sx127x.c
+  ${LBM_SMTC_MODEM_CORE_DIR}/smtc_ral/src/ral_sx127x.c
+  ${LBM_SMTC_MODEM_CORE_DIR}/smtc_ralf/src/ralf_sx127x.c
+)

west.yml

@@ -23,6 +23,8 @@ manifest:
       url-base: https://github.com/zephyrproject-rtos
     - name: babblesim
       url-base: https://github.com/BabbleSim
+    - name: lora-net
+      url-base: https://github.com/lora-net
 
   group-filter: [-babblesim, -optional]
 
@@ -299,6 +301,11 @@ manifest:
     - name: loramac-node
       revision: fb00b383072518c918e2258b0916c996f2d4eebe
       path: modules/lib/loramac-node
+    - name: lora-basics-modem
+      remote: lora-net
+      repo-path: SWL2001
+      revision: v4.8.0
+      path: modules/lib/lora_basics_modem
     - name: lvgl
       revision: 1ed1ddd881c3784049a92bb9fe37c38c6c74d998
       path: modules/lib/gui/lvgl