100 lines
3.4 KiB
Plaintext
100 lines
3.4 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menu "IEEE 802.15.4 socket support"
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config NET_IEEE802154
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bool "IEEE 802.15.4 socket support"
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default n
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depends on WIRELESS_IEEE802154
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select NETDEV_IOCTL
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---help---
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Enable support for raw, IEEE 802.15.4 sockets.
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Raw sockets allow receiving and transmitting IEEE 802.15.4 radio
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frames without a layer2 protocol such as 6LoWPAN in between. Frames
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received are copied into a IEEE 802.15.4 socket tap before they
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enter the network. Frames written into a IEEE 802.15.4 socket will
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bypass the network altogether and will be sent directly to the
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IEEE 802.15.4 MAC network interface driver outgoing frame queue.
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if NET_IEEE802154
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config NET_IEEE802154_FRAMELEN
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int "IEEE 802.15.4 Frame Length"
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default 127
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range 1 999999
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---help---
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For standard IEEE 802.15.4 radios, this should always be 127 bytes.
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However, some IEEE 802.15.4 radios may non-standard frame lengths.
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This setting is currently used only for detection data transfers
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that would exceed the radio frame length.
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config NET_IEEE802154_PREALLOC_CONNS
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int "Preallocated IEEE 802.15.4 sockets"
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default 4
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---help---
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Number of IEEE 802.15.4 connections (all tasks).
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This number of connections will be pre-allocated during system boot.
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If dynamic connections allocation is enabled, more connections may
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be allocated at a later time, as the system needs them. Else this
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will be the maximum number of connections available to the system
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at all times.
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Set to 0 to disable (and rely only on dynamic allocations).
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config NET_IEEE802154_ALLOC_CONNS
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int "Dynamic IEEE 802.15.4 connections allocation"
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default 0
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---help---
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Dynamic memory allocations for IEEE 802.15.4.
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When set to 0 all dynamic allocations are disabled.
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When set to 1 a new connection will be allocated every time,
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and it will be free'd when no longer needed.
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Setting this to 2 or more will allocate the connections in
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batches (with batch size equal to this config). When a
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connection is no longer needed, it will be returned to the
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free connections pool, and it will never be deallocated!
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config NET_IEEE802154_MAX_CONNS
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int "Maximum number of IEEE 802.15.4 connections"
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default 0
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depends on NET_IEEE802154_ALLOC_CONNS > 0
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---help---
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If dynamic connections allocation is selected (NET_IEEE802154_ALLOC_CONNS > 0)
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this will limit the number of connections that can be allocated.
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This is useful in case the system is under very heavy load (or
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under attack), ensuring that the heap will not be exhausted.
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config NET_IEEE802154_NCONTAINERS
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int "Number of pre-allocated frame containers"
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default 8
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---help---
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This specifies the total number of preallocated frame containers.
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One must be allocated with each incoming frame.
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config NET_IEEE802154_BACKLOG
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int "Maximum frame backlog"
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default 8
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range 0 255
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---help---
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As frames are received, then are help in an RX queue. They remain
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in the RX queue until application logic reads the queue frames. To
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prevent overrun, the maximum backlog may be set to a nonzero value.
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What the backlog of queue frames reaches that count, the olds frame
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will be freed, preventing overrun at the cost of losing the oldest
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frames.
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NOTE: The special value of zero will disable all backlog checks.
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endif # NET_IEEE802154
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endmenu # IEEE 802.15.4 Socket Support
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