cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/can/error.h

/*
 * linux/can/error.h
 *
 * Definitions of the CAN error messages to be filtered and passed to the user.
 *
 * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
 * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Volkswagen nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * Alternatively, provided that this notice is retained in full, this
 * software may be distributed under the terms of the GNU General
 * Public License ("GPL") version 2, in which case the provisions of the
 * GPL apply INSTEAD OF those given above.
 *
 * The provided data structures and external interfaces from this code
 * are not restricted to be used by modules with a GPL compatible license.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

#ifndef _UAPI_CAN_ERROR_H

#define _UAPI_CAN_ERROR_H


#define CAN_ERR_DLC 8 
/* dlc for error message frames */

/* error class (mask) in can_id */

#define CAN_ERR_TX_TIMEOUT   0x00000001U 
/* TX timeout (by netdevice driver) */

#define CAN_ERR_LOSTARB      0x00000002U 
/* lost arbitration    / data[0]    */

#define CAN_ERR_CRTL         0x00000004U 
/* controller problems / data[1]    */

#define CAN_ERR_PROT         0x00000008U 
/* protocol violations / data[2..3] */

#define CAN_ERR_TRX          0x00000010U 
/* transceiver status  / data[4]    */

#define CAN_ERR_ACK          0x00000020U 
/* received no ACK on transmission */

#define CAN_ERR_BUSOFF       0x00000040U 
/* bus off */

#define CAN_ERR_BUSERROR     0x00000080U 
/* bus error (may flood!) */

#define CAN_ERR_RESTARTED    0x00000100U 
/* controller restarted */

/* arbitration lost in bit ... / data[0] */

#define CAN_ERR_LOSTARB_UNSPEC   0x00 
/* unspecified */
				      /* else bit number in bitstream */

/* error status of CAN-controller / data[1] */

#define CAN_ERR_CRTL_UNSPEC      0x00 
/* unspecified */

#define CAN_ERR_CRTL_RX_OVERFLOW 0x01 
/* RX buffer overflow */

#define CAN_ERR_CRTL_TX_OVERFLOW 0x02 
/* TX buffer overflow */

#define CAN_ERR_CRTL_RX_WARNING  0x04 
/* reached warning level for RX errors */

#define CAN_ERR_CRTL_TX_WARNING  0x08 
/* reached warning level for TX errors */

#define CAN_ERR_CRTL_RX_PASSIVE  0x10 
/* reached error passive status RX */

#define CAN_ERR_CRTL_TX_PASSIVE  0x20 
/* reached error passive status TX */
				      /* (at least one error counter exceeds */
				      /* the protocol-defined level of 127)  */

#define CAN_ERR_CRTL_ACTIVE      0x40 
/* recovered to error active state */

/* error in CAN protocol (type) / data[2] */

#define CAN_ERR_PROT_UNSPEC      0x00 
/* unspecified */

#define CAN_ERR_PROT_BIT         0x01 
/* single bit error */

#define CAN_ERR_PROT_FORM        0x02 
/* frame format error */

#define CAN_ERR_PROT_STUFF       0x04 
/* bit stuffing error */

#define CAN_ERR_PROT_BIT0        0x08 
/* unable to send dominant bit */

#define CAN_ERR_PROT_BIT1        0x10 
/* unable to send recessive bit */

#define CAN_ERR_PROT_OVERLOAD    0x20 
/* bus overload */

#define CAN_ERR_PROT_ACTIVE      0x40 
/* active error announcement */

#define CAN_ERR_PROT_TX          0x80 
/* error occurred on transmission */

/* error in CAN protocol (location) / data[3] */

#define CAN_ERR_PROT_LOC_UNSPEC  0x00 
/* unspecified */

#define CAN_ERR_PROT_LOC_SOF     0x03 
/* start of frame */

#define CAN_ERR_PROT_LOC_ID28_21 0x02 
/* ID bits 28 - 21 (SFF: 10 - 3) */

#define CAN_ERR_PROT_LOC_ID20_18 0x06 
/* ID bits 20 - 18 (SFF: 2 - 0 )*/

#define CAN_ERR_PROT_LOC_SRTR    0x04 
/* substitute RTR (SFF: RTR) */

#define CAN_ERR_PROT_LOC_IDE     0x05 
/* identifier extension */

#define CAN_ERR_PROT_LOC_ID17_13 0x07 
/* ID bits 17-13 */

#define CAN_ERR_PROT_LOC_ID12_05 0x0F 
/* ID bits 12-5 */

#define CAN_ERR_PROT_LOC_ID04_00 0x0E 
/* ID bits 4-0 */

#define CAN_ERR_PROT_LOC_RTR     0x0C 
/* RTR */

#define CAN_ERR_PROT_LOC_RES1    0x0D 
/* reserved bit 1 */

#define CAN_ERR_PROT_LOC_RES0    0x09 
/* reserved bit 0 */

#define CAN_ERR_PROT_LOC_DLC     0x0B 
/* data length code */

#define CAN_ERR_PROT_LOC_DATA    0x0A 
/* data section */

#define CAN_ERR_PROT_LOC_CRC_SEQ 0x08 
/* CRC sequence */

#define CAN_ERR_PROT_LOC_CRC_DEL 0x18 
/* CRC delimiter */

#define CAN_ERR_PROT_LOC_ACK     0x19 
/* ACK slot */

#define CAN_ERR_PROT_LOC_ACK_DEL 0x1B 
/* ACK delimiter */

#define CAN_ERR_PROT_LOC_EOF     0x1A 
/* end of frame */

#define CAN_ERR_PROT_LOC_INTERM  0x12 
/* intermission */

/* error status of CAN-transceiver / data[4] */
/*                                             CANH CANL */

#define CAN_ERR_TRX_UNSPEC             0x00 
/* 0000 0000 */

#define CAN_ERR_TRX_CANH_NO_WIRE       0x04 
/* 0000 0100 */

#define CAN_ERR_TRX_CANH_SHORT_TO_BAT  0x05 
/* 0000 0101 */

#define CAN_ERR_TRX_CANH_SHORT_TO_VCC  0x06 
/* 0000 0110 */

#define CAN_ERR_TRX_CANH_SHORT_TO_GND  0x07 
/* 0000 0111 */

#define CAN_ERR_TRX_CANL_NO_WIRE       0x40 
/* 0100 0000 */

#define CAN_ERR_TRX_CANL_SHORT_TO_BAT  0x50 
/* 0101 0000 */

#define CAN_ERR_TRX_CANL_SHORT_TO_VCC  0x60 
/* 0110 0000 */

#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] */

#endif /* _UAPI_CAN_ERROR_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Oliver Hartkopp30497.75%350.00%
Andri Yngvason51.61%116.67%
Lucas De Marchi10.32%116.67%
Uwe Kleine-König10.32%116.67%
Total311100.00%6100.00%
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