1 /* 2 * linux/can/bcm.h 3 * 4 * Definitions for CAN Broadcast Manager (BCM) 5 * 6 * Author: Oliver Hartkopp <oliver.hartkopp (at) volkswagen.de> 7 * Copyright (c) 2002-2007 Volkswagen Group Electronic Research 8 * All rights reserved. 9 * 10 */ 11 12 #ifndef CAN_BCM_H 13 #define CAN_BCM_H 14 15 #include <linux/types.h> 16 #include <linux/can.h> 17 18 /** 19 * struct bcm_msg_head - head of messages to/from the broadcast manager 20 * @opcode: opcode, see enum below. 21 * @flags: special flags, see below. 22 * @count: number of frames to send before changing interval. 23 * @ival1: interval for the first @count frames. 24 * @ival2: interval for the following frames. 25 * @can_id: CAN ID of frames to be sent or received. 26 * @nframes: number of frames appended to the message head. 27 * @frames: array of CAN frames. 28 */ 29 struct bcm_msg_head { 30 __u32 opcode; 31 __u32 flags; 32 __u32 count; 33 struct timeval ival1, ival2; 34 canid_t can_id; 35 __u32 nframes; 36 struct can_frame frames[0]; 37 }; 38 39 enum { 40 TX_SETUP = 1, /* create (cyclic) transmission task */ 41 TX_DELETE, /* remove (cyclic) transmission task */ 42 TX_READ, /* read properties of (cyclic) transmission task */ 43 TX_SEND, /* send one CAN frame */ 44 RX_SETUP, /* create RX content filter subscription */ 45 RX_DELETE, /* remove RX content filter subscription */ 46 RX_READ, /* read properties of RX content filter subscription */ 47 TX_STATUS, /* reply to TX_READ request */ 48 TX_EXPIRED, /* notification on performed transmissions (count=0) */ 49 RX_STATUS, /* reply to RX_READ request */ 50 RX_TIMEOUT, /* cyclic message is absent */ 51 RX_CHANGED /* updated CAN frame (detected content change) */ 52 }; 53 54 #define SETTIMER 0x0001 55 #define STARTTIMER 0x0002 56 #define TX_COUNTEVT 0x0004 57 #define TX_ANNOUNCE 0x0008 58 #define TX_CP_CAN_ID 0x0010 59 #define RX_FILTER_ID 0x0020 60 #define RX_CHECK_DLC 0x0040 61 #define RX_NO_AUTOTIMER 0x0080 62 #define RX_ANNOUNCE_RESUME 0x0100 63 #define TX_RESET_MULTI_IDX 0x0200 64 #define RX_RTR_FRAME 0x0400 65 66 #endif /* CAN_BCM_H */ 67
