# Copyright (c) 2016 Intel Corporation.
# SPDX-License-Identifier: Apache-2.0

menu "IEEE 802.15.4 Radio"

config NET_L2_IEEE802154_RADIO_DFLT_TX_POWER
	int "Default radio transmission power"
	default 0
	help
	  TX power in dbm. Valid setting are: -18, -7, -4, -2, 0, 1, 2, 3, 5
	  If wrongly set, it will silently fail.

config NET_L2_IEEE802154_RADIO_TX_RETRIES
	int "Radio Retransmission attempts"
	default 3
	range 0 7
	help
	  Number of re-transmission attempts radio driver should do, before
	  replying it could not send the packet (MAC PIB attribute:
	  macMaxFrameRetries).

choice
	prompt "Radio channel access protocol"
	default NET_L2_IEEE802154_RADIO_CSMA_CA
	help
	  Select which medium access protocol to use.

config NET_L2_IEEE802154_RADIO_CSMA_CA
	bool "IEEE 802.15.4 unslotted CSMA-CA medium access protocol"
	help
	  Use CSMA-CA mechanism (listen-before-talk with exponential backoff)
	  to transmit packets. This is the most common way of mediating radio
	  channel access and fits most usage scenarios (see IEEE 802.15.4-2020,
	  sections 6.2.5.1 and 10.2.8).

config NET_L2_IEEE802154_RADIO_ALOHA
	bool "IEEE 802.15.4 Aloha medium access protocol (CCA mode 4)"
	help
	  Use Aloha mechanism (send without any clear channel assessment) to
	  transmit packets. This is a simplistic way of transmitting packets
	  and fits low duty-cycle contexts where the radio spectrum is not
	  too heavily loaded (see IEEE 802.15.4-2020, section 10.2.8). The
	  current implementation does not randomize channel access.

endchoice

if NET_L2_IEEE802154_RADIO_CSMA_CA

config NET_L2_IEEE802154_RADIO_CSMA_CA_MAX_BO
	int "CSMA maximum backoffs"
	default 4
	range 0 5
	help
	  The maximum number of backoffs the CSMA-CA algorithm will attempt
	  before declaring a channel access failure (MAC PIB attribute:
	  macMaxCSMABackoffs).

config NET_L2_IEEE802154_RADIO_CSMA_CA_MIN_BE
	int "CSMA MAC minimum backoff exponent"
	default 3
	range 0 8
	help
	  The minimum value of the backoff exponent (BE) in the CSMA-CA
	  algorithm (MAC PIB attribute: macMinBe). This setting must be less
	  than or equal NET_L2_IEEE802154_RADIO_CSMA_CA_MAX_BE.

config NET_L2_IEEE802154_RADIO_CSMA_CA_MAX_BE
	int "CSMA MAC maximum backoff exponent"
	default 5
	range 3 8
	help
	  The maximum value of the backoff exponent (BE) in the CSMA-CA
	  algorithm (MAC PIB attribute: macMaxBe).

endif # NET_L2_IEEE802154_RADIO_CSMA_CA

endmenu