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authorOliver Hartkopp <socketcan@hartkopp.net>2017-01-10 20:52:06 +0300
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-01-24 15:52:00 +0300
commit12a6075cabc0d9ffbc0366b44daa22f278606312 (patch)
treee57621aa1b8b591f869d7313d4bb5c55a5c9884b /include/uapi/linux/can
parentd140199af510ad4749dc5e38b7922135258ba5fd (diff)
downloadlinux-12a6075cabc0d9ffbc0366b44daa22f278606312.tar.xz
can: dev: add CAN interface termination API
This patch adds a netlink interface to configure the CAN bus termination of CAN interfaces. Inside the driver an array of supported termination values is defined: const u16 drvname_termination[] = { 60, 120, CAN_TERMINATION_DISABLED }; struct drvname_priv *priv; priv = netdev_priv(dev); priv->termination_const = drvname_termination; priv->termination_const_cnt = ARRAY_SIZE(drvname_termination); priv->termination = CAN_TERMINATION_DISABLED; And the funtion to set the value has to be defined: priv->do_set_termination = drvname_set_termination; Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Reviewed-by: Ramesh Shanmugasundaram <Ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/uapi/linux/can')
-rw-r--r--include/uapi/linux/can/netlink.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h
index 94ffe0c83ce7..7414771926fb 100644
--- a/include/uapi/linux/can/netlink.h
+++ b/include/uapi/linux/can/netlink.h
@@ -127,9 +127,14 @@ enum {
IFLA_CAN_BERR_COUNTER,
IFLA_CAN_DATA_BITTIMING,
IFLA_CAN_DATA_BITTIMING_CONST,
+ IFLA_CAN_TERMINATION,
+ IFLA_CAN_TERMINATION_CONST,
__IFLA_CAN_MAX
};
#define IFLA_CAN_MAX (__IFLA_CAN_MAX - 1)
+/* u16 termination range: 1..65535 Ohms */
+#define CAN_TERMINATION_DISABLED 0
+
#endif /* !_UAPI_CAN_NETLINK_H */