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Diffstat (limited to 'include/socket-can/can.h')
| -rw-r--r-- | include/socket-can/can.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/include/socket-can/can.h b/include/socket-can/can.h new file mode 100644 index 0000000..6e88743 --- /dev/null +++ b/include/socket-can/can.h @@ -0,0 +1,209 @@ +/* + * can.h (userspace) + * + * Copyright (C) 2004, 2005 + * + * - Jan Kiszka, Uni Hannover + * - Robert Schwebel, Benedikt Spranger, Marc Kleine-Budde, Pengutronix + * - Uwe Koppe, MicroControl GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License + * as published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef CAN_H +#define CAN_H + +#define CAN_ID_EXT_MASK 0x1FFFFFFF /* contains CAN id */ +#define CAN_ID_STD_MASK 0x000007FF +#define CAN_FLAG_ALL 0x20000000 /* filter all messages */ +#define CAN_FLAG_RTR 0x40000000 /* remote transmission flag*/ +#define CAN_FLAG_EXTENDED 0x80000000 /* extended frame */ + +#define CANIOCTYPE 0x23 + +#define SIOCSCANBAUDRATE (SIOCPROTOPRIVATE + 0) +#define SIOCGCANBAUDRATE (SIOCPROTOPRIVATE + 1) +#define SIOCSCANMODE (SIOCPROTOPRIVATE + 2) +#define SIOCGCANSTATE (SIOCPROTOPRIVATE + 3) + + +enum CAN_BAUD { + /*! + ** Baudrate 10 kBit/sec + */ + CAN_BAUD_10K = 0, + + /*! + ** Baudrate 20 kBit/sec + */ + CAN_BAUD_20K, + + /*! + ** Baudrate 50 kBit/sec + */ + CAN_BAUD_50K, + + /*! + ** Baudrate 100 kBit/sec + */ + CAN_BAUD_100K, + + /*! + ** Baudrate 125 kBit/sec + */ + CAN_BAUD_125K, + + /*! + ** Baudrate 250 kBit/sec + */ + CAN_BAUD_250K, + + /*! + ** Baudrate 500 kBit/sec + */ + CAN_BAUD_500K, + + /*! + ** Baudrate 800 kBit/sec + */ + CAN_BAUD_800K, + + /*! + ** Baudrate 1 MBit/sec + */ + CAN_BAUD_1M, + + /*! + ** Max value, beside CAN_BAUD_BTR + */ + CAN_BAUD_MAX, + + /*! + ** Use values for btr0, btr1 and btr2 + */ + CAN_BAUD_BTR = 0x80, +}; + + +enum CAN_MODE { + /*! Set controller in Stop mode (no reception / transmission possible) + */ + CAN_MODE_STOP = 0, + + /*! Set controller into normal operation + */ + CAN_MODE_START, + + /*! Start Autobaud Detection + */ + CAN_MODE_AUTO_BAUD, + /*! Set controller into Sleep mode + */ + CAN_MODE_SLEEP +}; + + +enum CAN_STATE { + /*! + ** CAN controller is active, no errors + */ + CAN_STATE_ACTIVE = 0, + + /*! + ** CAN controller is in stopped mode + */ + CAN_STATE_STOPPED, + + /*! + ** CAN controller is in Sleep mode + */ + CAN_STATE_SLEEPING, + + /*! + ** CAN controller is active, warning level is reached + */ + CAN_STATE_BUS_WARN = 6, + + /*! + ** CAN controller is error passive + */ + CAN_STATE_BUS_PASSIVE, + + /*! + ** CAN controller went into Bus Off + */ + CAN_STATE_BUS_OFF, + + /*! + ** General failure of physical layer detected (if supported by hardware) + */ + CAN_STATE_PHY_FAULT = 10, + + /*! + ** Fault on CAN-H detected (Low Speed CAN) + */ + CAN_STATE_PHY_H, + + /*! + ** Fault on CAN-L detected (Low Speed CAN) + */ + CAN_STATE_PHY_L, + + CAN_STATE_ERR_BIT = 0x10, + CAN_STATE_ERR_STUFF = 0x20, + CAN_STATE_ERR_FORM = 0x30, + CAN_STATE_ERR_CRC = 0x40, + CAN_STATE_ERR_ACK = 0x50 +}; + + +struct can_baudrate { + enum CAN_BAUD baudrate; + unsigned char btr[3]; +}; + + +union can_settings { + enum CAN_MODE mode; + enum CAN_STATE state; +}; + + +#define AF_CAN 30 /* CAN Bus */ +#define PF_CAN AF_CAN + +enum CAN_PROTO { + CAN_PROTO_RAW, +/* CAN_PROTO_FOO, */ +/* CAN_PROTO_BAR, */ + CAN_PROTO_MAX, +}; + +struct sockaddr_can { + sa_family_t can_family; + int can_ifindex; + int can_id; +}; + +struct can_frame { + int can_id; + int can_dlc; + union { + unsigned long long msgbits; + unsigned long dword[2]; + unsigned char byte[8]; + } payload; +}; + +#endif /* CAN_H */ |