aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/can/netlink.h
diff options
context:
space:
mode:
authorWolfgang Grandegger <wg@grandegger.com>2010-02-22 22:21:17 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-26 01:48:49 -0800
commit52c793f24054f5dc30d228e37e0e19cc8313f086 (patch)
treeb7ebb686f5c2b0d58d05e42cc9d452adf651a83b /include/linux/can/netlink.h
parent78ca90ea995cb86c72cde9308276d2a701bd3c40 (diff)
can: netlink support for bus-error reporting and counters
This patch makes the bus-error reporting configurable and allows to retrieve the CAN TX and RX bus error counters via netlink interface. I have added support for the SJA1000. The TX and RX bus error counters are also copied to the data fields 6..7 of error messages when state changes are reported. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/can/netlink.h')
-rw-r--r--include/linux/can/netlink.h18
1 files changed, 14 insertions, 4 deletions
diff --git a/include/linux/can/netlink.h b/include/linux/can/netlink.h
index c818335fbb1..3250de935e1 100644
--- a/include/linux/can/netlink.h
+++ b/include/linux/can/netlink.h
@@ -70,6 +70,14 @@ enum can_state {
};
/*
+ * CAN bus error counters
+ */
+struct can_berr_counter {
+ __u16 txerr;
+ __u16 rxerr;
+};
+
+/*
* CAN controller mode
*/
struct can_ctrlmode {
@@ -77,10 +85,11 @@ struct can_ctrlmode {
__u32 flags;
};
-#define CAN_CTRLMODE_LOOPBACK 0x1 /* Loopback mode */
-#define CAN_CTRLMODE_LISTENONLY 0x2 /* Listen-only mode */
-#define CAN_CTRLMODE_3_SAMPLES 0x4 /* Triple sampling mode */
-#define CAN_CTRLMODE_ONE_SHOT 0x8 /* One-Shot mode */
+#define CAN_CTRLMODE_LOOPBACK 0x01 /* Loopback mode */
+#define CAN_CTRLMODE_LISTENONLY 0x02 /* Listen-only mode */
+#define CAN_CTRLMODE_3_SAMPLES 0x04 /* Triple sampling mode */
+#define CAN_CTRLMODE_ONE_SHOT 0x08 /* One-Shot mode */
+#define CAN_CTRLMODE_BERR_REPORTING 0x10 /* Bus-error reporting */
/*
* CAN device statistics
@@ -106,6 +115,7 @@ enum {
IFLA_CAN_CTRLMODE,
IFLA_CAN_RESTART_MS,
IFLA_CAN_RESTART,
+ IFLA_CAN_BERR_COUNTER,
__IFLA_CAN_MAX
};