net: openthread: Add openthread TCAT implementation.

This commit adds bbtc implementation.
New file in modules/openthread/platform/ble.c
New corresponding kconfig option `OPENTHREAD_BLE_TCAT`.

Co-authored-by: Piotr Jasiński <piotr.jasinski@nordicsemi.no>

Signed-off-by: Przemyslaw Bida <przemyslaw.bida@nordicsemi.no>
Signed-off-by: Piotr Jasiński <piotr.jasinski@nordicsemi.no>

modules/openthread/CMakeLists.txt

@@ -58,6 +58,12 @@ else()
   set(OT_BACKBONE_ROUTER_MULTICAST_ROUTING OFF CACHE BOOL "Enable BBR MR support" FORCE)
 endif()
 
+if(CONFIG_OPENTHREAD_BLE_TCAT)
+  set(OT_BLE_TCAT ON CACHE BOOL "Enable BLE TCAT support" FORCE)
+else()
+  set(OT_BLE_TCAT OFF CACHE BOOL "Enable BLE TCAT support" FORCE)
+endif()
+
 if(CONFIG_OPENTHREAD_BORDER_AGENT)
   set(OT_BORDER_AGENT ON CACHE BOOL "Enable Border Agent" FORCE)
 else()

modules/openthread/Kconfig.features

@@ -39,6 +39,10 @@ config OPENTHREAD_BACKBONE_ROUTER_DUA_NDPROXYING
 config OPENTHREAD_BACKBONE_ROUTER_MULTICAST_ROUTING
 	bool "BBR MR support"
 
+config OPENTHREAD_BLE_TCAT
+	bool "BLE TCAT support"
+	select EXPERIMENTAL
+
 config OPENTHREAD_BORDER_AGENT
 	bool "Border Agent support"
 

modules/openthread/Kconfig.thread

@@ -181,3 +181,15 @@ config OPENTHREAD_DEFAULT_TX_POWER
 	default 0
 	help
 	  Set the default TX output power [dBm] in radio driver for OpenThread purpose.
+
+config OPENTHREAD_BLE_TCAT_THREAD_STACK_SIZE
+	int "Openthread default TCAT stack size"
+	default 4200
+	help
+	   Openthread default TCAT stack size.
+
+config OPENTHREAD_BLE_TCAT_RING_BUF_SIZE
+	int "Openthread BLE ringbuffer size"
+	default 512
+	help
+	   Openthread BLE TCAT ringbuffer size.

modules/openthread/platform/CMakeLists.txt

@@ -10,6 +10,7 @@ zephyr_library_sources(
   spi.c
   )
 
+zephyr_library_sources_ifdef(CONFIG_OPENTHREAD_BLE_TCAT ble.c)
 zephyr_library_sources_ifdef(CONFIG_OPENTHREAD_DIAG diag.c)
 zephyr_library_sources_ifdef(CONFIG_OPENTHREAD_COPROCESSOR uart.c)
 zephyr_library_sources_ifdef(CONFIG_OPENTHREAD_CRYPTO_PSA crypto_psa.c)