diff options
| author | Oliver Hartkopp <oliver.hartkopp@volkswagen.de> | 2007-11-16 15:53:52 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:54:11 -0800 |
| commit | ffd980f976e7fd666c2e61bf8ab35107efd11828 (patch) | |
| tree | 78ac4c20961ad5607b162cf0bc43a8cfc0a009ee /include/linux/can | |
| parent | c18ce101f2e47d97ace125033e2896895a6db3dd (diff) | |
[CAN]: Add broadcast manager (bcm) protocol
This patch adds the CAN broadcast manager (bcm) protocol.
Signed-off-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/can')
| -rw-r--r-- | include/linux/can/bcm.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/linux/can/bcm.h b/include/linux/can/bcm.h new file mode 100644 index 000000000000..7ade33a0ff03 --- /dev/null +++ b/include/linux/can/bcm.h @@ -0,0 +1,65 @@ +/* + * linux/can/bcm.h + * + * Definitions for CAN Broadcast Manager (BCM) + * + * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> + * Copyright (c) 2002-2007 Volkswagen Group Electronic Research + * All rights reserved. + * + * Send feedback to <socketcan-users@lists.berlios.de> + * + */ + +#ifndef CAN_BCM_H +#define CAN_BCM_H + +/** + * struct bcm_msg_head - head of messages to/from the broadcast manager + * @opcode: opcode, see enum below. + * @flags: special flags, see below. + * @count: number of frames to send before changing interval. + * @ival1: interval for the first @count frames. + * @ival2: interval for the following frames. + * @can_id: CAN ID of frames to be sent or received. + * @nframes: number of frames appended to the message head. + * @frames: array of CAN frames. + */ +struct bcm_msg_head { + int opcode; + int flags; + int count; + struct timeval ival1, ival2; + canid_t can_id; + int nframes; + struct can_frame frames[0]; +}; + +enum { + TX_SETUP = 1, /* create (cyclic) transmission task */ + TX_DELETE, /* remove (cyclic) transmission task */ + TX_READ, /* read properties of (cyclic) transmission task */ + TX_SEND, /* send one CAN frame */ + RX_SETUP, /* create RX content filter subscription */ + RX_DELETE, /* remove RX content filter subscription */ + RX_READ, /* read properties of RX content filter subscription */ + TX_STATUS, /* reply to TX_READ request */ + TX_EXPIRED, /* notification on performed transmissions (count=0) */ + RX_STATUS, /* reply to RX_READ request */ + RX_TIMEOUT, /* cyclic message is absent */ + RX_CHANGED /* updated CAN frame (detected content change) */ +}; + +#define SETTIMER 0x0001 +#define STARTTIMER 0x0002 +#define TX_COUNTEVT 0x0004 +#define TX_ANNOUNCE 0x0008 +#define TX_CP_CAN_ID 0x0010 +#define RX_FILTER_ID 0x0020 +#define RX_CHECK_DLC 0x0040 +#define RX_NO_AUTOTIMER 0x0080 +#define RX_ANNOUNCE_RESUME 0x0100 +#define TX_RESET_MULTI_IDX 0x0200 +#define RX_RTR_FRAME 0x0400 + +#endif /* CAN_BCM_H */ |