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Release 4.7 include/uapi/linux/can/netlink.h

/*
 * linux/can/netlink.h
 *
 * Definitions for the CAN netlink interface
 *
 * Copyright (c) 2009 Wolfgang Grandegger <wg@grandegger.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the version 2 of the GNU General Public License
 * as published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */

#ifndef _UAPI_CAN_NETLINK_H

#define _UAPI_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 */

#define CAN_CTRLMODE_FD			0x20	
/* CAN FD mode */

#define CAN_CTRLMODE_PRESUME_ACK	0x40	
/* Ignore missing CAN ACKs */

#define CAN_CTRLMODE_FD_NON_ISO		0x80	
/* CAN FD in non-ISO mode */

/*
 * 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_DATA_BITTIMING,
	
IFLA_CAN_DATA_BITTIMING_CONST,
	
__IFLA_CAN_MAX
};


#define IFLA_CAN_MAX	(__IFLA_CAN_MAX - 1)

#endif /* !_UAPI_CAN_NETLINK_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
wolfgang grandeggerwolfgang grandegger22789.02%220.00%
oliver hartkoppoliver hartkopp176.67%440.00%
nikita edward baruzdinnikita edward baruzdin51.96%110.00%
marc kleine-buddemarc kleine-budde41.57%110.00%
lucas de marchilucas de marchi10.39%110.00%
uwe kleine-koeniguwe kleine-koenig10.39%110.00%
Total255100.00%10100.00%
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