| Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * linux/can/bcm.h |
| 3 | * |
| 4 | * Definitions for CAN Broadcast Manager (BCM) |
| 5 | * |
| 6 | * Author: Oliver Hartkopp <oliver.hartkopp@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 */ |