97 lines
2.7 KiB
Plaintext
97 lines
2.7 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 "SocketCAN Support"
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config NET_CAN
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bool "SocketCAN support"
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default n
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select NET_READAHEAD
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depends on NET
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---help---
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Enable support for SocketCAN sockets that will permit.
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This logic is a WIP. Currently only fragmentary support is
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available, not enough to actually do anything of consequence.
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if NET_CAN
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config NET_CAN_HAVE_TX_DEADLINE
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bool
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default n
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config NET_CAN_HAVE_CANFD
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bool
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default n
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config CAN_CONNS
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int "Number of CAN connections"
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default 4
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---help---
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Maximum number of CAN connections (all tasks).
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config NET_CAN_CANFD
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bool "Enable CAN FD support"
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default y
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depends on NET_CAN_HAVE_CANFD
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---help---
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Enable CAN FD support in SocketCAN stack
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config NET_CAN_SOCK_OPTS
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bool "sockopt support"
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default n
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select NET_SOCKOPTS
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select NET_CANPROTO_OPTIONS
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---help---
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Enable support for the CAN socket options
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config NET_CAN_RAW_TX_DEADLINE
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bool "TX deadline sockopt"
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default n
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depends on NET_CAN_SOCK_OPTS && NET_CAN_HAVE_TX_DEADLINE
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---help---
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Note: Non-standard SocketCAN sockopt, but this options helps us in
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real-time use cases.
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When the CAN_RAW_TX_DEADLINE sockopt is enabled. The user can send
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CAN frames using sendmsg() function and add a deadline timespec
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value in the CMSG data. When the deadline has been passed and the
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CAN frame is still in the HW TX mailbox then the CAN driver will
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discard the CAN frame automatically.
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config NET_CAN_RAW_DEFAULT_TX_DEADLINE
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int "Default TX deadline when no deadline is given (us)"
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default 0
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depends on NET_CAN_RAW_TX_DEADLINE
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---help---
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Some applications may not use the NET_CAN_RAW_TX_DEADLINE flag.
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By default their deadline becomes 0 which means it becomes infinite.
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This would mean that packets from applications without the
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NET_CAN_RAW_TX_DEADLINE flag, can block the TX mailboxes forever.
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This config can set the default deadline when no deadline has been
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given.
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config NET_CAN_RAW_FILTER_MAX
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int "CAN_RAW_FILTER max filter count"
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default 32
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depends on NET_CAN_SOCK_OPTS
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---help---
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Maximum number of CAN_RAW filters that can be set per CAN connection.
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config NET_CAN_NOTIFIER
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bool "Support CAN notifications"
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default n
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depends on SCHED_WORKQUEUE
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select WQUEUE_NOTIFIER
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---help---
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Enable building of CAN notifier logic that will execute a worker
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function on the low priority work queue when read-ahead data
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is available or when a CAN connection is lost. This is is a general
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purpose notifier, but was developed specifically to support poll()
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logic where the poll must wait for these events.
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endif # NET_CAN
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endmenu # CAN Socket Support
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