# # For a description of the syntax of this configuration file, # see the file kconfig-language.txt in the NuttX tools repository. # menuconfig WIRELESS_IEEE802154 bool "IEEE 802.15.4 Support" default n select MM_IOB depends on WIRELESS ---help--- Enables a Media Access Controller for any IEEE802.15.4 radio device. This in turn can be used by higher layer entities such as 6lowpan. if WIRELESS_IEEE802154 config IEEE802154_PRIMITIVE_PREALLOC int "Number of pre-allocated primitive structures" default 20 ---help--- This specifies the total number of preallocated primitive structures. A primitive is an abstracted data type that provides service information between the MAC layer and the next highest layer. These may be allocated from either from tasking logic or from interrupt level logic. config IEEE802154_PRIMITIVE_IRQRESERVE int "Reserved pre-allocated primitive structures" default 0 depends on EXPERIMENTAL ---help--- If primitives can be allocated from interrupt handlers, then this specifies the number of pre-allocated meta-data structures that are reserved for for use only by interrupt handlers. This may be zero to reserve no meta-data structures for interrupt handlers. In that case, the allocation will fail if tasking logic has allocated them all. Interrupt logic will first attempt to allocate from the general, pre-allocated structure pool that will contain up to (size CONFIG_IEEE802154_PRIMITIVE_PREALLOC - CONFIG_IEEE802154_PRIMITIVE_IRQRESERVE) entries. If that fails, then it will try to take a structure from the reserve (size CONFIG_IEEE802154_PRIMITIVE_IRQRESERVE). Non-interrupt logic will also first attempt to allocate from the general, pre-allocated structure pool. If that fails, it will dynamically allocate the primitive with an additional cost in performance. NOTE: Currently marked as experimental and with a default of zero because there are no interrupt level allocations performed by the current IEEE 802.15.4 MAC code. config IEEE802154_DEFAULT_EADDR hex "IEEE 802.15.4 Default Extended Address" default 0x00fade00deadbeef ---help--- Set the default extended address to be used by MAC networks on init config IEEE802154_MAC bool "Software MAC layer" default n ---help--- There are two types of IEEE 802.15.4 radios supported. Those that provide all MAC functionality equivalent to the MAC802154 software implementation, and radios that provide a lower half to the MAC802154 software layer. This option enables the software MAC layer that can interface with the lower-half radio drivers. if IEEE802154_MAC config MAC802154_NTXDESC int "Number or TX descriptors" default 5 ---help--- Configured number of Tx descriptors. Default: 3 When used with 6LoWPAN, the descriptor allocator runs on a work and must avoid blocking if possible. Each frame will be provided in an IOB and each TX frame will need a TX descriptor. So the safe thing to do is set CONFIG_MAC802154_NTXDESC to CONFIG_IOB_NBUFFERS. Then there should be the maximum pre-allocated buffers for each possible TX frame. config MAC802154_NPANDESC int "Number of PAN descriptors" default 5 ---help--- Configured number of PAN descriptors Default: 5 When performing a scan to find a suitable PAN, the MAC must store information for all unique beacons received. This is the number of unique descriptors that can be held before the scan cancels with LIMIT_REACHED. config MAC802154_SFEVENT_VERBOSE bool "Verbose logging related to superframe events" default n depends on DEBUG_WIRELESS_INFO ---help--- Enable verbose logging of superframe events Default: false config MAC802154_LOCK_VERBOSE bool "Verbose logging related to MAC lock management" default n depends on DEBUG_WIRELESS_INFO ---help--- Enable verbose logging of MAC lock management. Default: false config IEEE802154_MACDEV bool "Character driver for IEEE 802.15.4 MAC layer" default n depends on WIRELESS_IEEE802154 ---help--- Enable the device driver to expose the IEEE 802.15.4 MAC layer access to user space as IOCTLs if IEEE802154_MACDEV config IEEE802154_MACDEV_RECVRPRIO int "Priority of frame receiver registerd with the MAC layer" default 0 ---help--- When the MAC layer receives an incoming data frame, it passes the frame to registered receivers, in order of receiver priority, until one of the receivers claim the frame. An example case would be when 6LoWPAN and the MAC character driver are enabled. Both have receivers registered with the MAC. The 6LoWPAN layer should get assigned a higher priority than the character driver. In this case, the 6LoWPAN receiver will receive the frame first. If the frame is a 6LoWPAN frame, it will claim the frame and the MAC will not pass the frame to any additional receivers. If it does not claim the frame, the MAC layer will call the next highest priority receiver, in this case, the MAC character driver (which should always be lowest priority since it is a "catch-all" type receiver). endif # IEEE802154_MACDEV config IEEE802154_NETDEV bool "IEEE802154 6LoWPAN Network Device" default n depends on NET_6LOWPAN || NET_IEEE802154 select ARCH_HAVE_NETDEV_STATISTICS ---help--- Add support for the IEEE802.15.4 6LoWPAN network device built on the common IEEE802.15.4 MAC. if IEEE802154_NETDEV config IEEE802154_NETDEV_RECVRPRIO int "Priority of frame receiver registerd with the MAC layer" default 1 ---help--- When the MAC layer receives an incoming data frame, it passes the frame to registered receivers, in order of receiver priority, until one of the receivers claim the frame. An example case would be when 6LoWPAN and the MAC character driver are enabled. Both have receivers registered with the MAC. The 6LoWPAN layer should get assigned a higher priority than the character driver. In this case, the 6LoWPAN receiver will receive the frame first. If the frame is a 6LoWPAN frame, it will claim the frame and the MAC will not pass the frame to any additional receivers. If it does not claim the frame, the MAC layer will call the next highest priority receiver, in this case, the MAC character driver (which should always be lowest priority since it is a "catch-all" type receiver). choice prompt "Work queue" default IEEE802154_NETDEV_LPWORK if SCHED_LPWORK default IEEE802154_NETDEV_HPWORK if !SCHED_LPWORK && SCHED_HPWORK depends on SCHED_WORKQUEUE ---help--- Work queue support is required to use the IEEE802.15.4 network driver. If the low priority work queue is available, then it should be used by the loopback driver. WARNING!! The IEEE802.15.4 network device must never run on the same work queue as does the IEEE 802.15.4 MAC. That configuration will cause deadlocks: The network logic may be blocked on the work queue waiting on resources that can only be freed by the MAC logic but the MAC is unable to run because the work queue is blocked. The recommended configuration is: Network on the LP work queue; MAC on HP work queue. Blocking on the HP work queue is a very bad thing in any case. config IEEE802154_NETDEV_HPWORK bool "High priority" depends on SCHED_HPWORK config IEEE802154_NETDEV_LPWORK bool "Low priority" depends on SCHED_LPWORK endchoice # Work queue endif # IEEE802154_NETDEV endif # IEEE802154_MACDEV config IEEE802154_LOOPBACK bool "IEEE802154 6LoWPAN Loopback" default n depends on NET_6LOWPAN || NET_IEEE802154 select ARCH_HAVE_NETDEV_STATISTICS ---help--- Add support for the IEEE802.15.4 6LoWPAN Loopback test device. if IEEE802154_LOOPBACK choice prompt "Work queue" default IEEE802154_LOOPBACK_LPWORK if SCHED_LPWORK default IEEE802154_LOOPBACK_HPWORK if !SCHED_LPWORK && SCHED_HPWORK depends on SCHED_WORKQUEUE ---help--- Work queue support is required to use the loopback driver. If the low priority work queue is available, then it should be used by the loopback driver. config IEEE802154_LOOPBACK_HPWORK bool "High priority" depends on SCHED_HPWORK config IEEE802154_LOOPBACK_LPWORK bool "Low priority" depends on SCHED_LPWORK endchoice # Work queue endif # IEEE802154_LOOPBACK endif # WIRELESS_IEEE802154