This patch adds `j1939-vehicle-position-srv`, a server for sending
vehicle position data over CAN using J1939 or NMEA 2000 protocols. It
retrieves GPS data from gpsd or simulates data if gpsd is unavailable.
By default, it operates in J1939 profile but can switch to NMEA 2000
with the `-p nmea2000` option.
Usage Examples:
1. With gpsd:
j1939acd -r 64-95 -c /tmp/1122334455667789.jacd 1122334455667789 vcan0 &
j1939-vehicle-position-srv -i vcan0 -n 0x1122334455667789
2. In simulation mode without gpsd:
j1939-vehicle-position-srv -i vcan0 -s -p nmea2000
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
[Yegor: add CMakeLists.txt integration]
Co-developed-by: Yegor Yefremov <yegorslists@googlemail.com>
The ASC file provides an information whether the CAN frame is sent (Tx)
or received (Rx) on the local CAN node.
With the new '-d' option the generation of this information is disabled
for the log file generation to simplify the comparision of log files.
E.g. log1 -> asc -> log2 always created the T/R information in the log2
file which is then hard to compare to the log1 file which might not
have the T/R information at all.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Since using the %n feature the tmp1 buffer is only used for the handling
of the CAN identifier. So this buffer can be shrinked for that use case.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
The Remote Request Substitution bit is a dominant bit ("0") in the CAN XL
frame. As some CAN XL controllers support to access this bit a new
CANXL_RRS value has been defined for the canxl_frame.flags element.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
TxRq messages are internal measurement messages that document the time of
a transmission request (to the CAN driver) to be checked against the real
transmission time, when the CAN message has been sent.
There is no such feature in the SocketCAN log format, so we detect this
tag but skip TxRq messages in the ASC log files.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Add '-s' option for display busload statistic, the output contains
minimal, maximum and exponentially-damped moving sums of one second
average (borrowed from Linux load average algorithm) since start or
reset (press 'r' while running).
canbusload 2024-09-23 17:15:18 (exact bitstuffing)
can0@500k 942 107535 60168 0 18% min: 0%, max: 21%, load: 16% 6% 2% |XXX.................|
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Hubert Streidl <hubert.streidl@de.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Link: https://lore.kernel.org/r/20250120162332.19157-2-mark.jonas@de.bosch.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add '-P' option for allow user to set the socket priority. This can be
useful in conjuction with queuing discipline.
Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com>
Signed-off-by: Hubert Streidl <hubert.streidl@de.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Link: https://lore.kernel.org/r/20250120162332.19157-1-mark.jonas@de.bosch.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
With the introduction of CAN FD the bitrate has not been printed
correcty. Fix the CAN FD bitrate output and try to shrink the
bitrates by using kilo or Mega suffixes: 500000 -> 500k
Fixes: 6382765bf6 ("canbusload: count databitrate seperately")
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Rework to use a single CAN socket for the received CAN traffic.
This allows to shutdown and restart various CAN interfaces without
terminating the application.
Additionally an auto detection has been implemented with the 'any' CAN
interface. E.g. with any@500000,2000000 CAN interfaces that have not
been defined before are assigned with the given 'any' bitrates when a
CAN frame from this CAN interface has been received.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
The CAN interface description can now have two bitrates.
Extend the length check to handle the CAN FD data bitrate correctly.
Fixes: 6382765bf6 ("canbusload: count databitrate seperately")
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
- remove legacy '-p' option (prefix to use when logging), fixes uclibc
compile
Fixes:
j1939acd.c: In function 'main':
j1939acd.c:489:38: error: passing argument 1 of 'asprintf' from incompatible pointer type [-Wincompatible-pointer-types]
489 | if (asprintf(&program_invocation_name, "%s.%s",
| ^~~~~~~~~~~~~~~~~~~~~~~~
| |
| const char **
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Oleksij Rempel
Marc Kleine-Budde
Yegor Yefremov
Oliver Hartkopp
Khem Raj
Jan Engelhardt
Zhu Yi
Marc Kleine-Budde
chris
Peter Seiderer
vuquangtrong