# Zephyr Bluetooth Controller configuration options

# Copyright (c) 2020 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

config BT_CTLR_DF_SUPPORT
	bool

config BT_CTLR_DF_CTE_TX_SUPPORT
	bool

config BT_CTLR_DF_ANT_SWITCH_2US_SUPPORT
	bool

config BT_CTLR_DF_ANT_SWITCH_1US_SUPPORT
	bool

menuconfig BT_CTLR_DF
	bool "LE Direction Finding [Experimental]"
	depends on BT_CTLR_DF_SUPPORT
	help
	  Enable support for Bluetooth 5.1 Direction Finding

if BT_CTLR_DF

# Basic controller functionalities required for implementation of
# Bluetooth v5.1 Direction Finding

config BT_CTLR_DF_CTE_TX
	bool "Enable transmission of Constant Tone Extension"
	depends on BT_CTLR_DF_CTE_TX_SUPPORT
	default y
	help
	  Enable support for transmission of Constant Tone Extension in
	  controller.

config BT_CTLR_DF_ANT_SWITCHING_1US
	bool "Enable support for 1us antenna switching slots"
	depends on BT_CTLR_DF_ANT_SWITCH_1US_SUPPORT
	default y
	help
	  Enable support for 1us antenna switching slots. This antenna switching
	  mode is optional for Direction Finding according to Bluetooth v5.1.

# Features related with Direction Finding
# BT Core spec 5.1, Vol 6, Part B, sec. 4.6 Feature Support

config BT_CTLR_DF_ANT_SWITCH_TX
	bool "Enable antenna switching during CTE transmission (AoD) feature"
	depends on BT_CTLR_DF_CTE_TX && BT_CTLR_DF_ANT_SWITCH_2US_SUPPORT
	default y
	help
	  Enable support for antenna switching during CTE transmission.
	  Also known as Angle of Departure mode.

config BT_CTLR_DF_CONN_CTE_RSP
	bool "Enable Connection CTE Response feature"
	depends on BT_CTLR_DF_CTE_TX && BT_CONN
	default y
	help
	  Enable support for Bluetooth v5.1 Connection CTE Response feature
	  in controller.

endif # BT_CTRL_DIRECTION_FINDING