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e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
126 lines
6.5 KiB
C
126 lines
6.5 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
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/*
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* linux/can/error.h
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*
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* Definitions of the CAN error messages to be filtered and passed to the user.
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*
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* Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
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* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Volkswagen nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* Alternatively, provided that this notice is retained in full, this
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* software may be distributed under the terms of the GNU General
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* Public License ("GPL") version 2, in which case the provisions of the
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* GPL apply INSTEAD OF those given above.
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*
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* The provided data structures and external interfaces from this code
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* are not restricted to be used by modules with a GPL compatible license.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#ifndef _UAPI_CAN_ERROR_H
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#define _UAPI_CAN_ERROR_H
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#define CAN_ERR_DLC 8 /* dlc for error message frames */
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/* error class (mask) in can_id */
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#define CAN_ERR_TX_TIMEOUT 0x00000001U /* TX timeout (by netdevice driver) */
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#define CAN_ERR_LOSTARB 0x00000002U /* lost arbitration / data[0] */
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#define CAN_ERR_CRTL 0x00000004U /* controller problems / data[1] */
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#define CAN_ERR_PROT 0x00000008U /* protocol violations / data[2..3] */
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#define CAN_ERR_TRX 0x00000010U /* transceiver status / data[4] */
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#define CAN_ERR_ACK 0x00000020U /* received no ACK on transmission */
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#define CAN_ERR_BUSOFF 0x00000040U /* bus off */
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#define CAN_ERR_BUSERROR 0x00000080U /* bus error (may flood!) */
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#define CAN_ERR_RESTARTED 0x00000100U /* controller restarted */
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/* arbitration lost in bit ... / data[0] */
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#define CAN_ERR_LOSTARB_UNSPEC 0x00 /* unspecified */
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/* else bit number in bitstream */
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/* error status of CAN-controller / data[1] */
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#define CAN_ERR_CRTL_UNSPEC 0x00 /* unspecified */
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#define CAN_ERR_CRTL_RX_OVERFLOW 0x01 /* RX buffer overflow */
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#define CAN_ERR_CRTL_TX_OVERFLOW 0x02 /* TX buffer overflow */
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#define CAN_ERR_CRTL_RX_WARNING 0x04 /* reached warning level for RX errors */
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#define CAN_ERR_CRTL_TX_WARNING 0x08 /* reached warning level for TX errors */
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#define CAN_ERR_CRTL_RX_PASSIVE 0x10 /* reached error passive status RX */
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#define CAN_ERR_CRTL_TX_PASSIVE 0x20 /* reached error passive status TX */
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/* (at least one error counter exceeds */
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/* the protocol-defined level of 127) */
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#define CAN_ERR_CRTL_ACTIVE 0x40 /* recovered to error active state */
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/* error in CAN protocol (type) / data[2] */
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#define CAN_ERR_PROT_UNSPEC 0x00 /* unspecified */
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#define CAN_ERR_PROT_BIT 0x01 /* single bit error */
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#define CAN_ERR_PROT_FORM 0x02 /* frame format error */
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#define CAN_ERR_PROT_STUFF 0x04 /* bit stuffing error */
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#define CAN_ERR_PROT_BIT0 0x08 /* unable to send dominant bit */
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#define CAN_ERR_PROT_BIT1 0x10 /* unable to send recessive bit */
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#define CAN_ERR_PROT_OVERLOAD 0x20 /* bus overload */
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#define CAN_ERR_PROT_ACTIVE 0x40 /* active error announcement */
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#define CAN_ERR_PROT_TX 0x80 /* error occurred on transmission */
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/* error in CAN protocol (location) / data[3] */
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#define CAN_ERR_PROT_LOC_UNSPEC 0x00 /* unspecified */
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#define CAN_ERR_PROT_LOC_SOF 0x03 /* start of frame */
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#define CAN_ERR_PROT_LOC_ID28_21 0x02 /* ID bits 28 - 21 (SFF: 10 - 3) */
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#define CAN_ERR_PROT_LOC_ID20_18 0x06 /* ID bits 20 - 18 (SFF: 2 - 0 )*/
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#define CAN_ERR_PROT_LOC_SRTR 0x04 /* substitute RTR (SFF: RTR) */
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#define CAN_ERR_PROT_LOC_IDE 0x05 /* identifier extension */
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#define CAN_ERR_PROT_LOC_ID17_13 0x07 /* ID bits 17-13 */
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#define CAN_ERR_PROT_LOC_ID12_05 0x0F /* ID bits 12-5 */
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#define CAN_ERR_PROT_LOC_ID04_00 0x0E /* ID bits 4-0 */
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#define CAN_ERR_PROT_LOC_RTR 0x0C /* RTR */
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#define CAN_ERR_PROT_LOC_RES1 0x0D /* reserved bit 1 */
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#define CAN_ERR_PROT_LOC_RES0 0x09 /* reserved bit 0 */
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#define CAN_ERR_PROT_LOC_DLC 0x0B /* data length code */
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#define CAN_ERR_PROT_LOC_DATA 0x0A /* data section */
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#define CAN_ERR_PROT_LOC_CRC_SEQ 0x08 /* CRC sequence */
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#define CAN_ERR_PROT_LOC_CRC_DEL 0x18 /* CRC delimiter */
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#define CAN_ERR_PROT_LOC_ACK 0x19 /* ACK slot */
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#define CAN_ERR_PROT_LOC_ACK_DEL 0x1B /* ACK delimiter */
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#define CAN_ERR_PROT_LOC_EOF 0x1A /* end of frame */
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#define CAN_ERR_PROT_LOC_INTERM 0x12 /* intermission */
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/* error status of CAN-transceiver / data[4] */
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/* CANH CANL */
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#define CAN_ERR_TRX_UNSPEC 0x00 /* 0000 0000 */
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#define CAN_ERR_TRX_CANH_NO_WIRE 0x04 /* 0000 0100 */
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#define CAN_ERR_TRX_CANH_SHORT_TO_BAT 0x05 /* 0000 0101 */
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#define CAN_ERR_TRX_CANH_SHORT_TO_VCC 0x06 /* 0000 0110 */
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#define CAN_ERR_TRX_CANH_SHORT_TO_GND 0x07 /* 0000 0111 */
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#define CAN_ERR_TRX_CANL_NO_WIRE 0x40 /* 0100 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_BAT 0x50 /* 0101 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_VCC 0x60 /* 0110 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_GND 0x70 /* 0111 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_CANH 0x80 /* 1000 0000 */
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/* controller specific additional information / data[5..7] */
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#endif /* _UAPI_CAN_ERROR_H */
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