| # ISO-TP configuration options |
| |
| # Copyright (c) 2019 Alexander Wachter |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| menuconfig ISOTP |
| bool "ISO-TP Transport [EXPERIMENTAL]" |
| select NET_BUF |
| select POLL |
| select EXPERIMENTAL |
| help |
| Enable ISO TP support for CAN |
| |
| if ISOTP |
| |
| module = ISOTP |
| module-str = ISOTP |
| source "subsys/logging/Kconfig.template.log_config" |
| |
| config ISOTP_WFTMAX |
| int "WFTmax (Max WAIT frames before aborting)." |
| default 10 |
| range 0 254 |
| help |
| This value defines the maximum number of WAIT frames before the transmission |
| is aborted. |
| |
| config ISOTP_BS_TIMEOUT |
| int "Bs timeout [ms] (timeout for receiving the frame control)" |
| default 1000 |
| range 200 10000 |
| help |
| Timeout for the reception of the next FC frame. ISO 15765-2: 1000ms |
| |
| config ISOTP_A_TIMEOUT |
| int "Ar and As timeout [ms] (sending and receiving timeout)" |
| default 1000 |
| range 200 10000 |
| help |
| As (sender transmit timeout) and Ar (receiver transmit timeout). |
| ISO 15765-2: 1000ms |
| |
| config ISOTP_CR_TIMEOUT |
| int "Cr timeout [ms] (timeout for consecutive frames)" |
| default 1000 |
| range 200 10000 |
| help |
| Cr (receiver consecutive frame) timeout. |
| ISO 15765-2: 1000ms |
| |
| config ISOTP_REQUIRE_RX_PADDING |
| bool "Require padding for received messages" |
| help |
| If enabled, SFs and the last CF must always have a DLC of 8 bytes |
| (for classic CAN) and unused bytes must be padded by the sending |
| device. This setting allows to be compliant to AUTOSAR Specification |
| of CAN Transport Layer. |
| |
| By default, received CAN frames with or without padding are accepted. |
| |
| config ISOTP_ENABLE_TX_PADDING |
| bool "Padding for transmitted messages" |
| help |
| Add padding bytes 0xCC (as recommended by Bosch) if the PDU payload |
| does not fit exactly into the CAN frame. |
| |
| config ISOTP_RX_BUF_COUNT |
| int "Number of data buffers for receiving data" |
| default 4 |
| help |
| Each data buffer will occupy ISOTP_RX_BUF_SIZE + smallish |
| header (sizeof(struct net_buf)) amount of data. |
| |
| config ISOTP_RX_BUF_SIZE |
| int "Size of one buffer data block" |
| default 56 |
| help |
| This value defines the size of a single block in the pool. The number of |
| blocks is given by ISOTP_RX_BUF_COUNT. To be efficient use a multiple of |
| CAN_DL - 1 (for classic can : 8 - 1 = 7). |
| |
| config ISOTP_RX_SF_FF_BUF_COUNT |
| int "Number of SF and FF data buffers for receiving data" |
| default 4 |
| help |
| This buffer is used for first and single frames. It is extra because the |
| buffer has to be ready for the first reception in isr context and therefor |
| is allocated when binding. |
| Each buffer will occupy CAN_DL - 1 byte + header (sizeof(struct net_buf)) |
| amount of data. |
| |
| config ISOTP_USE_TX_BUF |
| bool "Buffer tx writes" |
| help |
| Copy the outgoing data to a net buffer so that the calling function |
| can discard the data. |
| |
| if ISOTP_USE_TX_BUF |
| |
| config ISOTP_TX_BUF_COUNT |
| int "Number of data buffers for sending data" |
| default 4 |
| help |
| Each data buffer will occupy CONFIG_NET_BUF_DATA_SIZE + smallish |
| header (sizeof(struct net_buf)) amount of data. If context buffers |
| are used, use the same size here. |
| |
| config ISOTP_BUF_TX_DATA_POOL_SIZE |
| int "Size of the memory pool where buffers are allocated from" |
| default 256 |
| help |
| This value defines the size of the memory pool where the buffers |
| for sending are allocated from. |
| |
| endif # ISOTP_USE_TX_BUF |
| |
| config ISOTP_ENABLE_CONTEXT_BUFFERS |
| bool "Buffered tx contexts" |
| default y |
| help |
| This option enables buffered sending contexts. This makes send and |
| forget possible. A memory slab is used to buffer the context. |
| |
| config ISOTP_TX_CONTEXT_BUF_COUNT |
| int "Amount of context buffers for sending data" |
| default 4 |
| depends on ISOTP_ENABLE_CONTEXT_BUFFERS |
| help |
| This defines the size of the memory slab where the buffers are |
| allocated from. |
| |
| config ISOTP_CUSTOM_FIXED_ADDR |
| bool "Use fixed address not compatible with SAE J1939" |
| default n |
| help |
| This option allow to use an alternative CAN frame id format. |
| If not set ISO-TP fixed addressing use SAE J1939 standard. |
| |
| menu "Fixed address definition" |
| visible if ISOTP_CUSTOM_FIXED_ADDR |
| |
| config ISOTP_FIXED_ADDR_SA_POS |
| int "Position of fixed source address (SA)" |
| default 0 |
| help |
| Source address position in bits. |
| |
| config ISOTP_FIXED_ADDR_SA_MASK |
| hex "Mask to obtain fixed source address (SA)" |
| default 0xFF |
| help |
| Source address mask. |
| |
| config ISOTP_FIXED_ADDR_TA_POS |
| int "Position of fixed target address (TA)" |
| default 8 |
| help |
| Target address position in bits. |
| |
| config ISOTP_FIXED_ADDR_TA_MASK |
| hex "Mask to obtain fixed target address (TA)" |
| default 0xFF00 |
| help |
| Target address mask. |
| |
| config ISOTP_FIXED_ADDR_PRIO_POS |
| int "Position of priority in fixed addressing mode" |
| default 26 |
| help |
| Priority address position in bits. |
| |
| config ISOTP_FIXED_ADDR_PRIO_MASK |
| hex "Mask for priority in fixed addressing mode" |
| default 0x1C000000 |
| help |
| Priority address mask. |
| |
| config ISOTP_FIXED_ADDR_RX_MASK |
| hex "CAN filter RX mask to match any priority and source address (SA)" |
| default 0x03FFFF00 |
| help |
| CAN filter RX mask |
| |
| endmenu |
| |
| endif # ISOTP |
