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author | David Howells <dhowells@redhat.com> | 2012-10-09 09:48:41 +0100 |
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committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-10-10 22:24:21 +0200 |
commit | 922cd657c95fe3e4214d68a958e98288b7a55bba (patch) | |
tree | d55095ac1cba7e4e9c715cadb932045e46bb953c /include/uapi/linux/can/netlink.h | |
parent | 85457685e0e314f6902caaef976b3fd8ef4f51b4 (diff) | |
download | blackbird-op-linux-922cd657c95fe3e4214d68a958e98288b7a55bba.tar.gz blackbird-op-linux-922cd657c95fe3e4214d68a958e98288b7a55bba.zip |
UAPI: (Scripted) Disintegrate include/linux/can
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/uapi/linux/can/netlink.h')
-rw-r--r-- | include/uapi/linux/can/netlink.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h new file mode 100644 index 000000000000..14966ddb7df1 --- /dev/null +++ b/include/uapi/linux/can/netlink.h @@ -0,0 +1,122 @@ +/* + * linux/can/netlink.h + * + * Definitions for the CAN netlink interface + * + * Copyright (c) 2009 Wolfgang Grandegger <wg@grandegger.com> + * + */ + +#ifndef CAN_NETLINK_H +#define CAN_NETLINK_H + +#include <linux/types.h> + +/* + * CAN bit-timing parameters + * + * For further information, please read chapter "8 BIT TIMING + * REQUIREMENTS" of the "Bosch CAN Specification version 2.0" + * at http://www.semiconductors.bosch.de/pdf/can2spec.pdf. + */ +struct can_bittiming { + __u32 bitrate; /* Bit-rate in bits/second */ + __u32 sample_point; /* Sample point in one-tenth of a percent */ + __u32 tq; /* Time quanta (TQ) in nanoseconds */ + __u32 prop_seg; /* Propagation segment in TQs */ + __u32 phase_seg1; /* Phase buffer segment 1 in TQs */ + __u32 phase_seg2; /* Phase buffer segment 2 in TQs */ + __u32 sjw; /* Synchronisation jump width in TQs */ + __u32 brp; /* Bit-rate prescaler */ +}; + +/* + * CAN harware-dependent bit-timing constant + * + * Used for calculating and checking bit-timing parameters + */ +struct can_bittiming_const { + char name[16]; /* Name of the CAN controller hardware */ + __u32 tseg1_min; /* Time segement 1 = prop_seg + phase_seg1 */ + __u32 tseg1_max; + __u32 tseg2_min; /* Time segement 2 = phase_seg2 */ + __u32 tseg2_max; + __u32 sjw_max; /* Synchronisation jump width */ + __u32 brp_min; /* Bit-rate prescaler */ + __u32 brp_max; + __u32 brp_inc; +}; + +/* + * CAN clock parameters + */ +struct can_clock { + __u32 freq; /* CAN system clock frequency in Hz */ +}; + +/* + * CAN operational and error states + */ +enum can_state { + CAN_STATE_ERROR_ACTIVE = 0, /* RX/TX error count < 96 */ + CAN_STATE_ERROR_WARNING, /* RX/TX error count < 128 */ + CAN_STATE_ERROR_PASSIVE, /* RX/TX error count < 256 */ + CAN_STATE_BUS_OFF, /* RX/TX error count >= 256 */ + CAN_STATE_STOPPED, /* Device is stopped */ + CAN_STATE_SLEEPING, /* Device is sleeping */ + CAN_STATE_MAX +}; + +/* + * CAN bus error counters + */ +struct can_berr_counter { + __u16 txerr; + __u16 rxerr; +}; + +/* + * CAN controller mode + */ +struct can_ctrlmode { + __u32 mask; + __u32 flags; +}; + +#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 + */ +struct can_device_stats { + __u32 bus_error; /* Bus errors */ + __u32 error_warning; /* Changes to error warning state */ + __u32 error_passive; /* Changes to error passive state */ + __u32 bus_off; /* Changes to bus off state */ + __u32 arbitration_lost; /* Arbitration lost errors */ + __u32 restarts; /* CAN controller re-starts */ +}; + +/* + * CAN netlink interface + */ +enum { + IFLA_CAN_UNSPEC, + IFLA_CAN_BITTIMING, + IFLA_CAN_BITTIMING_CONST, + IFLA_CAN_CLOCK, + IFLA_CAN_STATE, + IFLA_CAN_CTRLMODE, + IFLA_CAN_RESTART_MS, + IFLA_CAN_RESTART, + IFLA_CAN_BERR_COUNTER, + __IFLA_CAN_MAX +}; + +#define IFLA_CAN_MAX (__IFLA_CAN_MAX - 1) + +#endif /* CAN_NETLINK_H */ |