STM32WB: Add HCI driver and enable BLE

boards/arm/nucleo_wb55rg/Kconfig.defconfig

@@ -31,4 +31,13 @@ config LPUART_1
 
 endif # BT_DEBUG_MONITOR
 
+if BT
+
+choice BT_HCI_BUS_TYPE
+	default BT_STM32_IPM
+
+endchoice
+
+endif # BT
+
 endif # BOARD_NUCLEO_WB55RG

boards/arm/nucleo_wb55rg/nucleo_wb55rg.dts

@@ -67,3 +67,41 @@ arduino_serial: &lpuart1 {
 	current-speed = <115200>;
 	status = "ok";
 };
+
+&flash0 {
+	/*
+	 * For more information, see:
+	 * http://docs.zephyrproject.org/latest/devices/dts/flash_partitions.html
+	 */
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* Set all partitions with first 812K of flash */
+		/* last 212K are reseved for M0 usage */
+		/* Configure partitions to make use of the whole 812K */
+
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x00000000 0xc000>;
+		};
+		slot0_partition: partition@c000 {
+			label = "image-0";
+			reg = <0x0000C000 0x5b800>;
+		};
+		slot1_partition: partition@67800 {
+			label = "image-1";
+			reg = <0x00067800 0x5b800>;
+		};
+		scratch_partition: partition@c3000 {
+			label = "image-scratch";
+			reg = <0x000c3000 0x4000>;
+		};
+		storage_partition: partition@c7000 {
+			label = "storage";
+			reg = <0x000c7000 0x4000>;
+		};
+
+	};
+};

drivers/bluetooth/hci/CMakeLists.txt

@@ -3,4 +3,5 @@
 zephyr_sources_ifdef(CONFIG_BT_H4       h4.c)
 zephyr_sources_ifdef(CONFIG_BT_H5       h5.c)
 zephyr_sources_ifdef(CONFIG_BT_SPI      spi.c)
+zephyr_sources_ifdef(CONFIG_BT_STM32_IPM      ipm_stm32wb.c)
 zephyr_sources_ifdef(CONFIG_BT_USERCHAN userchan.c)

drivers/bluetooth/hci/Kconfig

@@ -44,6 +44,13 @@ config BT_SPI
 	  additional platform specific knowledge may need to be added as
 	  devices are.
 
+config BT_STM32_IPM
+	bool "IPM HCI"
+	select USE_STM32_HAL_CORTEX
+	select HAS_STLIB
+	help
+	  TODO
+
 config BT_USERCHAN
 	bool "HCI User Channel based driver"
 	depends on BOARD_NATIVE_POSIX