# -*- coding: utf-8 -*-
"""
Defines CAN constants.
"""

canMSG_EXT = 0x0004

# BCM opcodes
CAN_BCM_TX_SETUP = 1
CAN_BCM_TX_DELETE = 2

CAN_BCM_TX_EXPIRED = 9

CAN_BCM_RX_TIMEOUT = 11


# 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_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

SIOCGIFINDEX =  0x8933
SIOCGSTAMP =    0x8906
EXTFLG =        0x0004

SKT_ERRFLG  =   0x0001
SKT_RTRFLG  =   0x0002

PYCAN_ERRFLG =  0x0020
PYCAN_STDFLG =  0x0002
PYCAN_RTRFLG =  0x0001

ID_TYPE_EXTENDED = True
ID_TYPE_STANDARD = False

ID_TYPE_29_BIT = ID_TYPE_EXTENDED
ID_TYPE_11_BIT = ID_TYPE_STANDARD

REMOTE_FRAME = True
DATA_FRAME = False
WAKEUP_MSG = True
ERROR_FRAME = True

DRIVER_MODE_SILENT = False
DRIVER_MODE_NORMAL = (not DRIVER_MODE_SILENT)

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