xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

can: dev: add CAN interface termination API

Browse Source 
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>
This commit is contained in:
Oliver Hartkopp
2017-01-10 18:52:06 +01:00
committed by Marc Kleine-Budde
parent d140199af5
commit 12a6075cab
3 changed files with 57 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/uapi/linux/can/netlink.h
View File

@@ -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 */