-header-y += raw.h
-header-y += bcm.h
-header-y += gw.h
-header-y += error.h
-header-y += netlink.h
+++ /dev/null
-/*
- * linux/can/bcm.h
- *
- * Definitions for CAN Broadcast Manager (BCM)
- *
- * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
- * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
- * All rights reserved.
- *
- */
-
-#ifndef CAN_BCM_H
-#define CAN_BCM_H
-
-#include <linux/types.h>
-#include <linux/can.h>
-
-/**
- * struct bcm_msg_head - head of messages to/from the broadcast manager
- * @opcode: opcode, see enum below.
- * @flags: special flags, see below.
- * @count: number of frames to send before changing interval.
- * @ival1: interval for the first @count frames.
- * @ival2: interval for the following frames.
- * @can_id: CAN ID of frames to be sent or received.
- * @nframes: number of frames appended to the message head.
- * @frames: array of CAN frames.
- */
-struct bcm_msg_head {
- __u32 opcode;
- __u32 flags;
- __u32 count;
- struct timeval ival1, ival2;
- canid_t can_id;
- __u32 nframes;
- struct can_frame frames[0];
-};
-
-enum {
- TX_SETUP = 1, /* create (cyclic) transmission task */
- TX_DELETE, /* remove (cyclic) transmission task */
- TX_READ, /* read properties of (cyclic) transmission task */
- TX_SEND, /* send one CAN frame */
- RX_SETUP, /* create RX content filter subscription */
- RX_DELETE, /* remove RX content filter subscription */
- RX_READ, /* read properties of RX content filter subscription */
- TX_STATUS, /* reply to TX_READ request */
- TX_EXPIRED, /* notification on performed transmissions (count=0) */
- RX_STATUS, /* reply to RX_READ request */
- RX_TIMEOUT, /* cyclic message is absent */
- RX_CHANGED /* updated CAN frame (detected content change) */
-};
-
-#define SETTIMER 0x0001
-#define STARTTIMER 0x0002
-#define TX_COUNTEVT 0x0004
-#define TX_ANNOUNCE 0x0008
-#define TX_CP_CAN_ID 0x0010
-#define RX_FILTER_ID 0x0020
-#define RX_CHECK_DLC 0x0040
-#define RX_NO_AUTOTIMER 0x0080
-#define RX_ANNOUNCE_RESUME 0x0100
-#define TX_RESET_MULTI_IDX 0x0200
-#define RX_RTR_FRAME 0x0400
-
-#endif /* CAN_BCM_H */
+++ /dev/null
-/*
- * 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.
- *
- */
-
-#ifndef CAN_ERROR_H
-#define 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) */
-
-/* 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 /* CAN_ERROR_H */
+++ /dev/null
-/*
- * linux/can/gw.h
- *
- * Definitions for CAN frame Gateway/Router/Bridge
- *
- * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
- * Copyright (c) 2011 Volkswagen Group Electronic Research
- * All rights reserved.
- *
- */
-
-#ifndef CAN_GW_H
-#define CAN_GW_H
-
-#include <linux/types.h>
-#include <linux/can.h>
-
-struct rtcanmsg {
- __u8 can_family;
- __u8 gwtype;
- __u16 flags;
-};
-
-/* CAN gateway types */
-enum {
- CGW_TYPE_UNSPEC,
- CGW_TYPE_CAN_CAN, /* CAN->CAN routing */
- __CGW_TYPE_MAX
-};
-
-#define CGW_TYPE_MAX (__CGW_TYPE_MAX - 1)
-
-/* CAN rtnetlink attribute definitions */
-enum {
- CGW_UNSPEC,
- CGW_MOD_AND, /* CAN frame modification binary AND */
- CGW_MOD_OR, /* CAN frame modification binary OR */
- CGW_MOD_XOR, /* CAN frame modification binary XOR */
- CGW_MOD_SET, /* CAN frame modification set alternate values */
- CGW_CS_XOR, /* set data[] XOR checksum into data[index] */
- CGW_CS_CRC8, /* set data[] CRC8 checksum into data[index] */
- CGW_HANDLED, /* number of handled CAN frames */
- CGW_DROPPED, /* number of dropped CAN frames */
- CGW_SRC_IF, /* ifindex of source network interface */
- CGW_DST_IF, /* ifindex of destination network interface */
- CGW_FILTER, /* specify struct can_filter on source CAN device */
- __CGW_MAX
-};
-
-#define CGW_MAX (__CGW_MAX - 1)
-
-#define CGW_FLAGS_CAN_ECHO 0x01
-#define CGW_FLAGS_CAN_SRC_TSTAMP 0x02
-
-#define CGW_MOD_FUNCS 4 /* AND OR XOR SET */
-
-/* CAN frame elements that are affected by curr. 3 CAN frame modifications */
-#define CGW_MOD_ID 0x01
-#define CGW_MOD_DLC 0x02
-#define CGW_MOD_DATA 0x04
-
-#define CGW_FRAME_MODS 3 /* ID DLC DATA */
-
-#define MAX_MODFUNCTIONS (CGW_MOD_FUNCS * CGW_FRAME_MODS)
-
-struct cgw_frame_mod {
- struct can_frame cf;
- __u8 modtype;
-} __attribute__((packed));
-
-#define CGW_MODATTR_LEN sizeof(struct cgw_frame_mod)
-
-struct cgw_csum_xor {
- __s8 from_idx;
- __s8 to_idx;
- __s8 result_idx;
- __u8 init_xor_val;
-} __attribute__((packed));
-
-struct cgw_csum_crc8 {
- __s8 from_idx;
- __s8 to_idx;
- __s8 result_idx;
- __u8 init_crc_val;
- __u8 final_xor_val;
- __u8 crctab[256];
- __u8 profile;
- __u8 profile_data[20];
-} __attribute__((packed));
-
-/* length of checksum operation parameters. idx = index in CAN frame data[] */
-#define CGW_CS_XOR_LEN sizeof(struct cgw_csum_xor)
-#define CGW_CS_CRC8_LEN sizeof(struct cgw_csum_crc8)
-
-/* CRC8 profiles (compute CRC for additional data elements - see below) */
-enum {
- CGW_CRC8PRF_UNSPEC,
- CGW_CRC8PRF_1U8, /* compute one additional u8 value */
- CGW_CRC8PRF_16U8, /* u8 value table indexed by data[1] & 0xF */
- CGW_CRC8PRF_SFFID_XOR, /* (can_id & 0xFF) ^ (can_id >> 8 & 0xFF) */
- __CGW_CRC8PRF_MAX
-};
-
-#define CGW_CRC8PRF_MAX (__CGW_CRC8PRF_MAX - 1)
-
-/*
- * CAN rtnetlink attribute contents in detail
- *
- * CGW_XXX_IF (length 4 bytes):
- * Sets an interface index for source/destination network interfaces.
- * For the CAN->CAN gwtype the indices of _two_ CAN interfaces are mandatory.
- *
- * CGW_FILTER (length 8 bytes):
- * Sets a CAN receive filter for the gateway job specified by the
- * struct can_filter described in include/linux/can.h
- *
- * CGW_MOD_XXX (length 17 bytes):
- * Specifies a modification that's done to a received CAN frame before it is
- * send out to the destination interface.
- *
- * <struct can_frame> data used as operator
- * <u8> affected CAN frame elements
- *
- * CGW_CS_XOR (length 4 bytes):
- * Set a simple XOR checksum starting with an initial value into
- * data[result-idx] using data[start-idx] .. data[end-idx]
- *
- * The XOR checksum is calculated like this:
- *
- * xor = init_xor_val
- *
- * for (i = from_idx .. to_idx)
- * xor ^= can_frame.data[i]
- *
- * can_frame.data[ result_idx ] = xor
- *
- * CGW_CS_CRC8 (length 282 bytes):
- * Set a CRC8 value into data[result-idx] using a given 256 byte CRC8 table,
- * a given initial value and a defined input data[start-idx] .. data[end-idx].
- * Finally the result value is XOR'ed with the final_xor_val.
- *
- * The CRC8 checksum is calculated like this:
- *
- * crc = init_crc_val
- *
- * for (i = from_idx .. to_idx)
- * crc = crctab[ crc ^ can_frame.data[i] ]
- *
- * can_frame.data[ result_idx ] = crc ^ final_xor_val
- *
- * The calculated CRC may contain additional source data elements that can be
- * defined in the handling of 'checksum profiles' e.g. shown in AUTOSAR specs
- * like http://www.autosar.org/download/R4.0/AUTOSAR_SWS_E2ELibrary.pdf
- * E.g. the profile_data[] may contain additional u8 values (called DATA_IDs)
- * that are used depending on counter values inside the CAN frame data[].
- * So far only three profiles have been implemented for illustration.
- *
- * Remark: In general the attribute data is a linear buffer.
- * Beware of sending unpacked or aligned structs!
- */
-
-#endif
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-/*
- * linux/can/raw.h
- *
- * Definitions for raw CAN sockets
- *
- * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
- * Urs Thuermann <urs.thuermann@volkswagen.de>
- * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
- * All rights reserved.
- *
- */
-
-#ifndef CAN_RAW_H
-#define CAN_RAW_H
-
-#include <linux/can.h>
-
-#define SOL_CAN_RAW (SOL_CAN_BASE + CAN_RAW)
-
-/* for socket options affecting the socket (not the global system) */
-
-enum {
- CAN_RAW_FILTER = 1, /* set 0 .. n can_filter(s) */
- CAN_RAW_ERR_FILTER, /* set filter for error frames */
- CAN_RAW_LOOPBACK, /* local loopback (default:on) */
- CAN_RAW_RECV_OWN_MSGS, /* receive my own msgs (default:off) */
- CAN_RAW_FD_FRAMES, /* allow CAN FD frames (default:off) */
-};
-
-#endif
# UAPI Header export list
+header-y += bcm.h
+header-y += error.h
+header-y += gw.h
+header-y += netlink.h
+header-y += raw.h
--- /dev/null
+/*
+ * linux/can/bcm.h
+ *
+ * Definitions for CAN Broadcast Manager (BCM)
+ *
+ * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
+ * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
+ * All rights reserved.
+ *
+ */
+
+#ifndef CAN_BCM_H
+#define CAN_BCM_H
+
+#include <linux/types.h>
+#include <linux/can.h>
+
+/**
+ * struct bcm_msg_head - head of messages to/from the broadcast manager
+ * @opcode: opcode, see enum below.
+ * @flags: special flags, see below.
+ * @count: number of frames to send before changing interval.
+ * @ival1: interval for the first @count frames.
+ * @ival2: interval for the following frames.
+ * @can_id: CAN ID of frames to be sent or received.
+ * @nframes: number of frames appended to the message head.
+ * @frames: array of CAN frames.
+ */
+struct bcm_msg_head {
+ __u32 opcode;
+ __u32 flags;
+ __u32 count;
+ struct timeval ival1, ival2;
+ canid_t can_id;
+ __u32 nframes;
+ struct can_frame frames[0];
+};
+
+enum {
+ TX_SETUP = 1, /* create (cyclic) transmission task */
+ TX_DELETE, /* remove (cyclic) transmission task */
+ TX_READ, /* read properties of (cyclic) transmission task */
+ TX_SEND, /* send one CAN frame */
+ RX_SETUP, /* create RX content filter subscription */
+ RX_DELETE, /* remove RX content filter subscription */
+ RX_READ, /* read properties of RX content filter subscription */
+ TX_STATUS, /* reply to TX_READ request */
+ TX_EXPIRED, /* notification on performed transmissions (count=0) */
+ RX_STATUS, /* reply to RX_READ request */
+ RX_TIMEOUT, /* cyclic message is absent */
+ RX_CHANGED /* updated CAN frame (detected content change) */
+};
+
+#define SETTIMER 0x0001
+#define STARTTIMER 0x0002
+#define TX_COUNTEVT 0x0004
+#define TX_ANNOUNCE 0x0008
+#define TX_CP_CAN_ID 0x0010
+#define RX_FILTER_ID 0x0020
+#define RX_CHECK_DLC 0x0040
+#define RX_NO_AUTOTIMER 0x0080
+#define RX_ANNOUNCE_RESUME 0x0100
+#define TX_RESET_MULTI_IDX 0x0200
+#define RX_RTR_FRAME 0x0400
+
+#endif /* CAN_BCM_H */
--- /dev/null
+/*
+ * 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.
+ *
+ */
+
+#ifndef CAN_ERROR_H
+#define 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) */
+
+/* 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 /* CAN_ERROR_H */
--- /dev/null
+/*
+ * linux/can/gw.h
+ *
+ * Definitions for CAN frame Gateway/Router/Bridge
+ *
+ * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
+ * Copyright (c) 2011 Volkswagen Group Electronic Research
+ * All rights reserved.
+ *
+ */
+
+#ifndef CAN_GW_H
+#define CAN_GW_H
+
+#include <linux/types.h>
+#include <linux/can.h>
+
+struct rtcanmsg {
+ __u8 can_family;
+ __u8 gwtype;
+ __u16 flags;
+};
+
+/* CAN gateway types */
+enum {
+ CGW_TYPE_UNSPEC,
+ CGW_TYPE_CAN_CAN, /* CAN->CAN routing */
+ __CGW_TYPE_MAX
+};
+
+#define CGW_TYPE_MAX (__CGW_TYPE_MAX - 1)
+
+/* CAN rtnetlink attribute definitions */
+enum {
+ CGW_UNSPEC,
+ CGW_MOD_AND, /* CAN frame modification binary AND */
+ CGW_MOD_OR, /* CAN frame modification binary OR */
+ CGW_MOD_XOR, /* CAN frame modification binary XOR */
+ CGW_MOD_SET, /* CAN frame modification set alternate values */
+ CGW_CS_XOR, /* set data[] XOR checksum into data[index] */
+ CGW_CS_CRC8, /* set data[] CRC8 checksum into data[index] */
+ CGW_HANDLED, /* number of handled CAN frames */
+ CGW_DROPPED, /* number of dropped CAN frames */
+ CGW_SRC_IF, /* ifindex of source network interface */
+ CGW_DST_IF, /* ifindex of destination network interface */
+ CGW_FILTER, /* specify struct can_filter on source CAN device */
+ __CGW_MAX
+};
+
+#define CGW_MAX (__CGW_MAX - 1)
+
+#define CGW_FLAGS_CAN_ECHO 0x01
+#define CGW_FLAGS_CAN_SRC_TSTAMP 0x02
+
+#define CGW_MOD_FUNCS 4 /* AND OR XOR SET */
+
+/* CAN frame elements that are affected by curr. 3 CAN frame modifications */
+#define CGW_MOD_ID 0x01
+#define CGW_MOD_DLC 0x02
+#define CGW_MOD_DATA 0x04
+
+#define CGW_FRAME_MODS 3 /* ID DLC DATA */
+
+#define MAX_MODFUNCTIONS (CGW_MOD_FUNCS * CGW_FRAME_MODS)
+
+struct cgw_frame_mod {
+ struct can_frame cf;
+ __u8 modtype;
+} __attribute__((packed));
+
+#define CGW_MODATTR_LEN sizeof(struct cgw_frame_mod)
+
+struct cgw_csum_xor {
+ __s8 from_idx;
+ __s8 to_idx;
+ __s8 result_idx;
+ __u8 init_xor_val;
+} __attribute__((packed));
+
+struct cgw_csum_crc8 {
+ __s8 from_idx;
+ __s8 to_idx;
+ __s8 result_idx;
+ __u8 init_crc_val;
+ __u8 final_xor_val;
+ __u8 crctab[256];
+ __u8 profile;
+ __u8 profile_data[20];
+} __attribute__((packed));
+
+/* length of checksum operation parameters. idx = index in CAN frame data[] */
+#define CGW_CS_XOR_LEN sizeof(struct cgw_csum_xor)
+#define CGW_CS_CRC8_LEN sizeof(struct cgw_csum_crc8)
+
+/* CRC8 profiles (compute CRC for additional data elements - see below) */
+enum {
+ CGW_CRC8PRF_UNSPEC,
+ CGW_CRC8PRF_1U8, /* compute one additional u8 value */
+ CGW_CRC8PRF_16U8, /* u8 value table indexed by data[1] & 0xF */
+ CGW_CRC8PRF_SFFID_XOR, /* (can_id & 0xFF) ^ (can_id >> 8 & 0xFF) */
+ __CGW_CRC8PRF_MAX
+};
+
+#define CGW_CRC8PRF_MAX (__CGW_CRC8PRF_MAX - 1)
+
+/*
+ * CAN rtnetlink attribute contents in detail
+ *
+ * CGW_XXX_IF (length 4 bytes):
+ * Sets an interface index for source/destination network interfaces.
+ * For the CAN->CAN gwtype the indices of _two_ CAN interfaces are mandatory.
+ *
+ * CGW_FILTER (length 8 bytes):
+ * Sets a CAN receive filter for the gateway job specified by the
+ * struct can_filter described in include/linux/can.h
+ *
+ * CGW_MOD_XXX (length 17 bytes):
+ * Specifies a modification that's done to a received CAN frame before it is
+ * send out to the destination interface.
+ *
+ * <struct can_frame> data used as operator
+ * <u8> affected CAN frame elements
+ *
+ * CGW_CS_XOR (length 4 bytes):
+ * Set a simple XOR checksum starting with an initial value into
+ * data[result-idx] using data[start-idx] .. data[end-idx]
+ *
+ * The XOR checksum is calculated like this:
+ *
+ * xor = init_xor_val
+ *
+ * for (i = from_idx .. to_idx)
+ * xor ^= can_frame.data[i]
+ *
+ * can_frame.data[ result_idx ] = xor
+ *
+ * CGW_CS_CRC8 (length 282 bytes):
+ * Set a CRC8 value into data[result-idx] using a given 256 byte CRC8 table,
+ * a given initial value and a defined input data[start-idx] .. data[end-idx].
+ * Finally the result value is XOR'ed with the final_xor_val.
+ *
+ * The CRC8 checksum is calculated like this:
+ *
+ * crc = init_crc_val
+ *
+ * for (i = from_idx .. to_idx)
+ * crc = crctab[ crc ^ can_frame.data[i] ]
+ *
+ * can_frame.data[ result_idx ] = crc ^ final_xor_val
+ *
+ * The calculated CRC may contain additional source data elements that can be
+ * defined in the handling of 'checksum profiles' e.g. shown in AUTOSAR specs
+ * like http://www.autosar.org/download/R4.0/AUTOSAR_SWS_E2ELibrary.pdf
+ * E.g. the profile_data[] may contain additional u8 values (called DATA_IDs)
+ * that are used depending on counter values inside the CAN frame data[].
+ * So far only three profiles have been implemented for illustration.
+ *
+ * Remark: In general the attribute data is a linear buffer.
+ * Beware of sending unpacked or aligned structs!
+ */
+
+#endif
--- /dev/null
+/*
+ * 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 */
--- /dev/null
+/*
+ * linux/can/raw.h
+ *
+ * Definitions for raw CAN sockets
+ *
+ * Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
+ * Urs Thuermann <urs.thuermann@volkswagen.de>
+ * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
+ * All rights reserved.
+ *
+ */
+
+#ifndef CAN_RAW_H
+#define CAN_RAW_H
+
+#include <linux/can.h>
+
+#define SOL_CAN_RAW (SOL_CAN_BASE + CAN_RAW)
+
+/* for socket options affecting the socket (not the global system) */
+
+enum {
+ CAN_RAW_FILTER = 1, /* set 0 .. n can_filter(s) */
+ CAN_RAW_ERR_FILTER, /* set filter for error frames */
+ CAN_RAW_LOOPBACK, /* local loopback (default:on) */
+ CAN_RAW_RECV_OWN_MSGS, /* receive my own msgs (default:off) */
+ CAN_RAW_FD_FRAMES, /* allow CAN FD frames (default:off) */
+};
+
+#endif
projects / openwrt / staging / blogic.git / commitdiff