drivers/can_can4linux/can4linux.h
author edouard
Sat, 13 Nov 2010 23:08:34 +0100
changeset 633 2c43383a1d57
parent 364 17edd8a028fa
permissions -rwxr-xr-x
Fix mingw32 cross build for can_peak_win32 and can_tcp_win32 server.
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/*
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 * can4linux.h - can4linux CAN driver module
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 *
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 * This file is subject to the terms and conditions of the GNU General Public
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 * License.  See the file "COPYING" in the main directory of this archive
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 * for more details.
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 *
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 * Copyright (c) 2001 port GmbH Halle/Saale
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 *------------------------------------------------------------------
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 * $Header$
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 *
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 *--------------------------------------------------------------------------
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 *
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 *
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 * modification history
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 * --------------------
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 * $Log$
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 * Revision 1.1  2008-01-22 09:27:13  groke6
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 * Added can4linux driver support.
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 *
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 * Revision 1.1  2004/08/12 10:14:31  jschoew
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 * add can4linux examples
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 *
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 * Revision 1.5  2004/05/14 10:02:54  oe
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 * - started supporting CPC-Card
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 * - version number in can4linux.h available
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 * - only one structure type for Config_par_t Command_par_t
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 * - new ioctl command CMD_CLEARBUFFERS
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 *
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 * Revision 1.4  2003/08/27 17:49:04  oe
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 * - New CanStatusPar structure
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 *
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 * Revision 1.3  2002/08/20 05:57:22  oe
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 * - new write() handling, now not ovrwriting buffer content if buffer fill
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 * - ioctl() get status returns buffer information
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 *
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 * Revision 1.2  2002/08/08 17:50:46  oe
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 * - MSG_ERR_MASK extended
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 *
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 * Revision 1.1  2002/01/10 19:13:19  oe
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 * - application header file changed name can.h -> can4linux.h
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 *
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 * Revision 1.2  2001/09/14 14:58:09  oe
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 * first free release
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 *
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 * Revision 1.1.1.1  2001/06/11 18:30:54  oe
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 * minimal version can4linux embedded, compile time Konfigurierbar
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 *
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 *
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 *
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 *
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 *--------------------------------------------------------------------------
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 */
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/**
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* \file can.h
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* \author Heinz-Jrgen Oertel, port GmbH
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* $Revision$
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* $Date$
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*
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* can4linux interface definitions
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*
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*
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*
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*/
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#ifndef __CAN_H
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#define __CAN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CAN4LINUXVERSION 0x0301 /*(Version 3.1)*/
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#ifndef __KERNEL__
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#include <sys/time.h>
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#endif
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 /*---------- the can message structure */
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#define CAN_MSG_LENGTH 8		/**< maximum length of a CAN frame */
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#define MSG_RTR		(1<<0)		/**< RTR Message */
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#define MSG_OVR		(1<<1)		/**< CAN controller Msg overflow error */
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#define MSG_EXT		(1<<2)		/**< extended message format */
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#define MSG_PASSIVE	(1<<4)		/**< controller in error passive */
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#define MSG_BUSOFF      (1<<5)		/**< controller Bus Off  */
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#define MSG_       	(1<<6)		/**<  */
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#define MSG_BOVR	(1<<7)		/**< receive/transmit buffer overflow */
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/**
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* mask used for detecting CAN errors in the canmsg_t flags field
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*/
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#define MSG_ERR_MASK	(MSG_OVR + MSG_PASSIVE + MSG_BUSOFF + MSG_BOVR)
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/**
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* The CAN message structure.
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* Used for all data transfers between the application and the driver
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* using read() or write().
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*/
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typedef struct {
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    /** flags, indicating or controlling special message properties */
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    int             flags;
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    int             cob;	 /**< CAN object number, used in Full CAN  */
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    unsigned   long id;		 /**< CAN message ID, 4 bytes  */
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    struct timeval  timestamp;	 /**< time stamp for received messages */
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    short      int  length;	 /**< number of bytes in the CAN message */
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    unsigned   char data[CAN_MSG_LENGTH]; /**< data, 0...8 bytes */
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} canmsg_t;
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/**
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---------- IOCTL requests */
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#define COMMAND 	 0	/**< IOCTL command request */
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#define CONFIG 		 1	/**< IOCTL configuration request */
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#define SEND 		 2	/**< IOCTL request */
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#define RECEIVE 	 3	/**< IOCTL request */
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#define CONFIGURERTR 	 4	/**< IOCTL request */
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#define STATUS           5      /**< IOCTL status request */
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/*---------- CAN ioctl parameter types */
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/**
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 IOCTL Command request parameter structure */
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struct Command_par {
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    int cmd;			/**< special driver command */
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    int target;			/**< special configuration target */
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    unsigned long val1;		/**< 1. parameter for the target */
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    unsigned long val2;		/**< 2. parameter for the target */
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    int error;	 		/**< return value */
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    unsigned long retval;	/**< return value */
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};
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typedef struct Command_par Command_par_t ;
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/**
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 PSW made them all the same
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 IOCTL Configuration request parameter structure */
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typedef struct Command_par  Config_par_t ;
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/**
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 IOCTL generic CAN controller status request parameter structure */
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typedef struct CanStatusPar { 
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    unsigned int baud;			/**< actual bit rate */
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    unsigned int status;		/**< CAN controller status register */
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    unsigned int error_warning_limit;	/**< the error warning limit */
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    unsigned int rx_errors;		/**< content of RX error counter */
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    unsigned int tx_errors;		/**< content of TX error counter */
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    unsigned int error_code;		/**< content of error code register */
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    unsigned int rx_buffer_size;	/**< size of rx buffer  */
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    unsigned int rx_buffer_used;	/**< number of messages */
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    unsigned int tx_buffer_size;	/**< size of tx buffer  */
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    unsigned int tx_buffer_used;	/**< number of messages */
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    unsigned long retval;		/**< return value */
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    unsigned int type;			/**< CAN controller / driver type */
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} CanStatusPar_t;
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/**
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 IOCTL  CanStatusPar.type CAN controller hardware chips */
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#define CAN_TYPE_UNSPEC		0
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#define CAN_TYPE_SJA1000	1
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#define CAN_TYPE_FlexCAN	2
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#define CAN_TYPE_TouCAN		3
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#define CAN_TYPE_82527		4
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#define CAN_TYPE_TwinCAN	5
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/**
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 IOCTL Send request parameter structure */
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typedef struct Send_par {
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    canmsg_t *Tx;		/**< CAN message struct  */
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    int error;	 		/**< return value for errno */
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    unsigned long retval;	/**< return value */
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} Send_par_t ;
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/**
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 IOCTL Receive request parameter structure */
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typedef struct Receive_par {
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    canmsg_t *Rx;		/**< CAN message struct  */
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    int error;	 		/**< return value for errno */
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    unsigned long retval;	/**< return value */
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} Receive_par_t ;
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/**
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IOCTL ConfigureRTR request parameter structure */
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typedef struct ConfigureRTR_par {
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    unsigned message;		/**< CAN message ID */
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    canmsg_t *Tx;		/**< CAN message struct  */
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    int error;	 		/**< return value for errno */
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    unsigned long retval;	/**< return value */
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} ConfigureRTR_par_t ;
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/**
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---------- IOCTL Command subcommands and there targets */
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# define CMD_START		1
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# define CMD_STOP 		2
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# define CMD_RESET		3
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# define CMD_CLEARBUFFERS	4
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/**
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---------- IOCTL Configure targets */
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# define CONF_ACC   	0	/* mask and code */
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# define CONF_ACCM   	1	/* mask only */
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# define CONF_ACCC   	2	/* code only */
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# define CONF_TIMING	3	/* bit timing */
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# define CONF_OMODE 	4	/* output control register */
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# define CONF_FILTER	5
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# define CONF_FENABLE	6
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# define CONF_FDISABLE	7
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#ifdef __cplusplus
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}
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#endif
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#endif 	/* __CAN_H */