diff -r 3b40e2100d96 -r 8340a591acf3 include/can_lincan/canmsg.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/include/can_lincan/canmsg.h Tue May 30 23:13:59 2006 +0200 @@ -0,0 +1,136 @@ +/* canmsg.h - common kernel-space and user-space CAN message structure + * Linux CAN-bus device driver. + * Written by Pavel Pisa - OCERA team member + * email:pisa@cmp.felk.cvut.cz + * This software is released under the GPL-License. + * Version lincan-0.3 17 Jun 2004 + */ + +#ifndef _CANMSG_T_H +#define _CANMSG_T_H + +#ifdef __KERNEL__ + +#include +#include + +#else /* __KERNEL__ */ + +#include +#include + +#endif /* __KERNEL__ */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * CAN_MSG_VERSION_2 enables new canmsg_t layout compatible with + * can4linux project from http://www.port.de/ + * + */ +#define CAN_MSG_VERSION_2 + +/* Number of data bytes in one CAN message */ +#define CAN_MSG_LENGTH 8 + +#ifdef CAN_MSG_VERSION_2 + +typedef struct timeval canmsg_tstamp_t ; + +typedef unsigned long canmsg_id_t; + +/** + * struct canmsg_t - structure representing CAN message + * @flags: message flags + * %MSG_RTR .. message is Remote Transmission Request, + * %MSG_EXT .. message with extended ID, + * %MSG_OVR .. indication of queue overflow condition, + * %MSG_LOCAL .. message originates from this node. + * @cob: communication object number (not used) + * @id: ID of CAN message + * @timestamp: not used + * @length: length of used data + * @data: data bytes buffer + * + * Header: canmsg.h + */ +struct canmsg_t { + int flags; + int cob; + canmsg_id_t id; + canmsg_tstamp_t timestamp; + unsigned short length; + unsigned char data[CAN_MSG_LENGTH]; +}; + +#else /*CAN_MSG_VERSION_2*/ +#ifndef PACKED +#define PACKED __attribute__((packed)) +#endif +/* Old, deprecated version of canmsg_t structure */ +struct canmsg_t { + short flags; + int cob; + canmsg_id_t id; + unsigned long timestamp; + unsigned int length; + unsigned char data[CAN_MSG_LENGTH]; +} PACKED; +#endif /*CAN_MSG_VERSION_2*/ + +typedef struct canmsg_t canmsg_t; + +/** + * struct canfilt_t - structure for acceptance filter setup + * @flags: message flags + * %MSG_RTR .. message is Remote Transmission Request, + * %MSG_EXT .. message with extended ID, + * %MSG_OVR .. indication of queue overflow condition, + * %MSG_LOCAL .. message originates from this node. + * there are corresponding mask bits + * %MSG_RTR_MASK, %MSG_EXT_MASK, %MSG_LOCAL_MASK. + * %MSG_PROCESSLOCAL enables local messages processing in the + * combination with global setting + * @queid: CAN queue identification in the case of the multiple + * queues per one user (open instance) + * @cob: communication object number (not used) + * @id: selected required value of cared ID id bits + * @mask: select bits significand for the comparation; + * 1 .. take care about corresponding ID bit, 0 .. don't care + * + * Header: canmsg.h + */ +struct canfilt_t { + int flags; + int queid; + int cob; + canmsg_id_t id; + canmsg_id_t mask; +}; + +typedef struct canfilt_t canfilt_t; + +/* Definitions to use for canmsg_t and canfilt_t flags */ +#define MSG_RTR (1<<0) +#define MSG_OVR (1<<1) +#define MSG_EXT (1<<2) +#define MSG_LOCAL (1<<3) +/* If you change above lines, check canque_filtid2internal function */ + +/* Additional definitions used for canfilt_t only */ +#define MSG_FILT_MASK_SHIFT 8 +#define MSG_RTR_MASK (MSG_RTR<