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"""
Defines shared CAN constants.
"""
# Generic socket constants
SO_TIMESTAMPNS = 35
CAN_ERR_FLAG = 0x20000000
CAN_RTR_FLAG = 0x40000000
CAN_EFF_FLAG = 0x80000000
# BCM opcodes
CAN_BCM_TX_SETUP = 1
CAN_BCM_TX_DELETE = 2
CAN_BCM_TX_READ = 3
# BCM flags
SETTIMER = 0x0001
STARTTIMER = 0x0002
TX_COUNTEVT = 0x0004
TX_ANNOUNCE = 0x0008
TX_CP_CAN_ID = 0x0010
RX_FILTER_ID = 0x0020
RX_CHECK_DLC = 0x0040
RX_NO_AUTOTIMER = 0x0080
RX_ANNOUNCE_RESUME = 0x0100
TX_RESET_MULTI_IDX = 0x0200
RX_RTR_FRAME = 0x0400
CAN_FD_FRAME = 0x0800
CAN_RAW = 1
CAN_BCM = 2
SOL_CAN_BASE = 100
SOL_CAN_RAW = SOL_CAN_BASE + CAN_RAW
CAN_RAW_FILTER = 1
CAN_RAW_ERR_FILTER = 2
CAN_RAW_LOOPBACK = 3
CAN_RAW_RECV_OWN_MSGS = 4
CAN_RAW_FD_FRAMES = 5
MSK_ARBID = 0x1FFFFFFF
MSK_FLAGS = 0xE0000000
PF_CAN = 29
SOCK_RAW = 3
SOCK_DGRAM = 2
AF_CAN = PF_CAN
SIOCGIFNAME = 0x8910
SIOCGIFINDEX = 0x8933
SIOCGSTAMP = 0x8906
EXTFLG = 0x0004
CANFD_BRS = 0x01 # bit rate switch (second bitrate for payload data)
CANFD_ESI = 0x02 # error state indicator of the transmitting node
CANFD_FDF = 0x04 # mark CAN FD for dual use of struct canfd_frame
# CAN payload length and DLC definitions according to ISO 11898-1
CAN_MAX_DLC = 8
CAN_MAX_RAW_DLC = 15
CAN_MAX_DLEN = 8
# CAN FD payload length and DLC definitions according to ISO 11898-7
CANFD_MAX_DLC = 15
CANFD_MAX_DLEN = 64
CANFD_MTU = 72
STD_ACCEPTANCE_MASK_ALL_BITS = 2**11 - 1
MAX_11_BIT_ID = STD_ACCEPTANCE_MASK_ALL_BITS
EXT_ACCEPTANCE_MASK_ALL_BITS = 2**29 - 1
MAX_29_BIT_ID = EXT_ACCEPTANCE_MASK_ALL_BITS
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