# Copyright Runtime.io 2018. All rights reserved.
# Copyright Nordic Semiconductor ASA 2020-2022. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

# The Kconfig file is dedicated to Bluetooth transport of MCUmgr
# subsystem and provides Kconfig options to control aspects of
# the transport.
#
# Options defined in this file should be prefixed:
#  MCUMGR_TRANSPORT_BT_

menuconfig MCUMGR_TRANSPORT_BT
	bool "Bluetooth mcumgr SMP transport"
	depends on BT_PERIPHERAL
	help
	  Enables handling of SMP commands received over Bluetooth.

if MCUMGR_TRANSPORT_BT

config MCUMGR_TRANSPORT_BT_REASSEMBLY
	bool "Reassemble packets in Bluetooth SMP transport"
	select MCUMGR_TRANSPORT_REASSEMBLY
	help
	  When enabled, the SMP BT transport will buffer and reassemble received
	  packet fragments before passing it for further processing.

choice MCUMGR_TRANSPORT_BT_PERM
	prompt "Permission used for the SMP service"
	default MCUMGR_TRANSPORT_BT_PERM_RW_AUTHEN if BT_SMP
	default MCUMGR_TRANSPORT_BT_PERM_RW
	help
	  Permission settings for GATT characteristics of the SMP service.

config MCUMGR_TRANSPORT_BT_PERM_RW
	bool "Read and write allowed"

config MCUMGR_TRANSPORT_BT_PERM_RW_ENCRYPT
	bool "Require encryption for access"
	depends on BT_SMP

config MCUMGR_TRANSPORT_BT_PERM_RW_AUTHEN
	bool "Require encryption and authentication for access"
	depends on BT_SMP

endchoice

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL
	bool "Request specific connection parameters for SMP packet exchange"
	depends on SYSTEM_WORKQUEUE_PRIORITY < 0
	depends on BT_GAP_PERIPHERAL_PREF_PARAMS
	help
	  Enables support for requesting specific connection parameters when
	  SMP commands are handled. This option allows to speed up the command
	  exchange process.
	  Its recommended to enable this if SMP is used for DFU.

if MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_MIN_INT
	int "Minimum connection interval for SMP packet exchange"
	default 6
	range 6 3200
	help
	  Minimum connection interval in 1.25ms units used during the exchange of SMP packets.

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_MAX_INT
	int "Maximum connection interval for SMP packet exchange"
	default 9
	range MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_MIN_INT 3200
	help
	  Maximum connection interval in 1.25ms units used during the exchange of SMP packets.

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_LATENCY
	int "Peripheral latency for SMP packet exchange"
	default 0
	range 0 499
	help
	  Peripheral latency in Connection Intervals used during the exchange of SMP packets.

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_TIMEOUT
	int "Supervision timeout for SMP packet exchange"
	default 42
	range 10 3200
	help
	  Supervision timeout in 10ms used during the exchange of SMP packets.

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_RESTORE_TIME
	int "Connection parameters restore time in milliseconds"
	default 5000
	range 1000 $(UINT16_MAX)
	help
	  The value is a time of inactivity on the SMP characteristic after which
	  connection parameters are restored to peripheral preferred values
	  (BT_GAP_PERIPHERAL_PREF_PARAMS).

config MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL_RETRY_TIME
	int "Connection parameters update retry time in milliseconds"
	default 1000
	range 1 5000
	help
	  In case connection parameters update fails due to an error, this
	  option specifies the time of the next update attempt.

endif # MCUMGR_TRASNPORT_BT_CONN_PARAM_CONTROL

config MCUMGR_TRANSPORT_BT_DYNAMIC_SVC_REGISTRATION
	bool "Register SMP service at runtime"
	depends on BT_GATT_DYNAMIC_DB
	default y
	help
	  When enabled, the SMP service will be automatically registered at boot time
	  and can then be dynamically registered/unregistered using a dedicated API.
	  Otherwise, the SMP service will be statically defined and registered.

endif # MCUMGR_TRANSPORT_BT