diff options
| author | Nick Terrell <[email protected]> | 2022-12-13 16:21:55 -0800 |
|---|---|---|
| committer | Nick Terrell <[email protected]> | 2022-12-13 16:21:55 -0800 |
| commit | 4f2c0a4acffbec01079c28f839422e64ddeff004 (patch) | |
| tree | 06ada4a8a6d94a94c93944806041b8c994cebfc5 /include/uapi/linux/can/error.h | |
| parent | 88a309465b3f05a100c3b81966982c0f9f5d23a6 (diff) | |
| parent | 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 (diff) | |
Merge branch 'main' into zstd-linus
Diffstat (limited to 'include/uapi/linux/can/error.h')
| -rw-r--r-- | include/uapi/linux/can/error.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/uapi/linux/can/error.h b/include/uapi/linux/can/error.h index 34633283de64..acc1ac393d2a 100644 --- a/include/uapi/linux/can/error.h +++ b/include/uapi/linux/can/error.h @@ -57,6 +57,8 @@ #define CAN_ERR_BUSOFF 0x00000040U /* bus off */ #define CAN_ERR_BUSERROR 0x00000080U /* bus error (may flood!) */ #define CAN_ERR_RESTARTED 0x00000100U /* controller restarted */ +#define CAN_ERR_CNT 0x00000200U /* TX error counter / data[6] */ + /* RX error counter / data[7] */ /* arbitration lost in bit ... / data[0] */ #define CAN_ERR_LOSTARB_UNSPEC 0x00 /* unspecified */ @@ -120,6 +122,22 @@ #define CAN_ERR_TRX_CANL_SHORT_TO_GND 0x70 /* 0111 0000 */ #define CAN_ERR_TRX_CANL_SHORT_TO_CANH 0x80 /* 1000 0000 */ -/* controller specific additional information / data[5..7] */ +/* data[5] is reserved (do not use) */ + +/* TX error counter / data[6] */ +/* RX error counter / data[7] */ + +/* CAN state thresholds + * + * Error counter Error state + * ----------------------------------- + * 0 - 95 Error-active + * 96 - 127 Error-warning + * 128 - 255 Error-passive + * 256 and greater Bus-off + */ +#define CAN_ERROR_WARNING_THRESHOLD 96 +#define CAN_ERROR_PASSIVE_THRESHOLD 128 +#define CAN_BUS_OFF_THRESHOLD 256 #endif /* _UAPI_CAN_ERROR_H */ |