134 lines
3.7 KiB
Plaintext
134 lines
3.7 KiB
Plaintext
# ISO-TP configuration options
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# Copyright (c) 2019 Alexander Wachter
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# SPDX-License-Identifier: Apache-2.0
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menuconfig ISOTP
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bool "ISO-TP Transport [EXPERIMENTAL]"
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select NET_BUF
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select POLL
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select EXPERIMENTAL
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help
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Enable ISO TP support for CAN
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if ISOTP
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module = ISOTP
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module-str = ISOTP
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source "subsys/logging/Kconfig.template.log_config"
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config ISOTP_WFTMAX
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int "WFTmax (Max WAIT frames before aborting)."
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default 10
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range 0 254
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help
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This value defines the maximum number of WAIT frames before the transmission
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is aborted.
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config ISOTP_BS_TIMEOUT
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int "Bs timeout [ms] (timeout for receiving the frame control)"
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default 1000
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range 200 10000
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help
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Timeout for the reception of the next FC frame. ISO 15765-2: 1000ms
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config ISOTP_A_TIMEOUT
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int "Ar and As timeout [ms] (sending and receiving timeout)"
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default 1000
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range 200 10000
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help
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As (sender transmit timeout) and Ar (receiver transmit timeout).
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ISO 15765-2: 1000ms
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config ISOTP_CR_TIMEOUT
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int "Cr timeout [ms] (timeout for consecutive frames)"
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default 1000
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range 200 10000
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help
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Cr (receiver consecutive frame) timeout.
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ISO 15765-2: 1000ms
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config ISOTP_REQUIRE_RX_PADDING
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bool "Require padding for received messages"
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help
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If enabled, SFs and the last CF must always have a DLC of 8 bytes
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(for classic CAN) and unused bytes must be padded by the sending
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device. This setting allows to be compliant to AUTOSAR Specification
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of CAN Transport Layer.
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By default, received CAN frames with or without padding are accepted.
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config ISOTP_ENABLE_TX_PADDING
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bool "Enable padding for transmitted messages"
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help
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Add padding bytes 0xCC (as recommended by Bosch) if the PDU payload
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does not fit exactly into the CAN frame.
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config ISOTP_RX_BUF_COUNT
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int "Number of data buffers for receiving data"
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default 4
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help
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Each data buffer will occupy ISOTP_RX_BUF_SIZE + smallish
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header (sizeof(struct net_buf)) amount of data.
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config ISOTP_RX_BUF_SIZE
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int "Size of one buffer data block"
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default 56
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help
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This value defines the size of a single block in the pool. The number of
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blocks is given by ISOTP_RX_BUF_COUNT. To be efficient use a multiple of
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CAN_DL - 1 (for classic can : 8 - 1 = 7).
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config ISOTP_RX_SF_FF_BUF_COUNT
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int "Number of SF and FF data buffers for receiving data"
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default 4
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help
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This buffer is used for first and single frames. It is extra because the
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buffer has to be ready for the first reception in isr context and therefor
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is allocated when binding.
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Each buffer will occupy CAN_DL - 1 byte + header (sizeof(struct net_buf))
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amount of data.
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config ISOTP_USE_TX_BUF
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bool "Buffer tx writes"
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default n
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help
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Copy the outgoing data to a net buffer so that the calling function
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can discard the data.
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if ISOTP_USE_TX_BUF
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config ISOTP_TX_BUF_COUNT
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int "Number of data buffers for sending data"
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default 4
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help
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Each data buffer will occupy CONFIG_NET_BUF_DATA_SIZE + smallish
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header (sizeof(struct net_buf)) amount of data. If context buffers
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are used, use the same size here.
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config ISOTP_BUF_TX_DATA_POOL_SIZE
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int "Size of the memory pool where buffers are allocated from"
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default 256
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help
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This value defines the size of the memory pool where the buffers
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for sending are allocated from.
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endif # ISOTP_USE_TX_BUF
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config ISOTP_ENABLE_CONTEXT_BUFFERS
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bool "Enable buffered tx contexts"
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default y
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help
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This option enables buffered sending contexts. This makes send and
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forget possible. A memory slab is used to buffer the context.
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config ISOTP_TX_CONTEXT_BUF_COUNT
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int "Amount of context buffers for sending data"
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default 4
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depends on ISOTP_ENABLE_CONTEXT_BUFFERS
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help
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This defines the size of the memory slab where the buffers are
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allocated from.
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endif # ISOTP
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