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2024-09-09 08:52:07 +00:00
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5
kernel/include/linux/can/Kbuild Normal file
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header-y += raw.h
header-y += bcm.h
header-y += gw.h
header-y += error.h
header-y += netlink.h

66
kernel/include/linux/can/bcm.h Normal file
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/*
* 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 */

61
kernel/include/linux/can/core.h Normal file
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/*
* linux/can/core.h
*
* Protoypes and definitions for CAN protocol modules using the PF_CAN core
*
* 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_CORE_H
#define CAN_CORE_H
#include <linux/can.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#define CAN_VERSION "20090105"
/* increment this number each time you change some user-space interface */
#define CAN_ABI_VERSION "8"
#define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION
#define DNAME(dev) ((dev) ? (dev)->name : "any")
/**
* struct can_proto - CAN protocol structure
* @type: type argument in socket() syscall, e.g. SOCK_DGRAM.
* @protocol: protocol number in socket() syscall.
* @ops: pointer to struct proto_ops for sock->ops.
* @prot: pointer to struct proto structure.
*/
struct can_proto {
int type;
int protocol;
const struct proto_ops *ops;
struct proto *prot;
};
/* function prototypes for the CAN networklayer core (af_can.c) */
extern int can_proto_register(const struct can_proto *cp);
extern void can_proto_unregister(const struct can_proto *cp);
extern int can_rx_register(struct net_device *dev, canid_t can_id,
canid_t mask,
void (*func)(struct sk_buff *, void *),
void *data, char *ident);
extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
canid_t mask,
void (*func)(struct sk_buff *, void *),
void *data);
extern int can_send(struct sk_buff *skb, int loop);
extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
#endif /* CAN_CORE_H */

102
kernel/include/linux/can/dev.h Normal file
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/*
* linux/can/dev.h
*
* Definitions for the CAN network device driver interface
*
* Copyright (C) 2006 Andrey Volkov <avolkov@varma-el.com>
* Varma Electronics Oy
*
* Copyright (C) 2008 Wolfgang Grandegger <wg@grandegger.com>
*
*/
#ifndef CAN_DEV_H
#define CAN_DEV_H
#include <linux/can.h>
#include <linux/can/netlink.h>
#include <linux/can/error.h>
/*
* CAN mode
*/
enum can_mode {
CAN_MODE_STOP = 0,
CAN_MODE_START,
CAN_MODE_SLEEP
};
/*
* CAN common private data
*/
struct can_priv {
struct can_device_stats can_stats;
struct can_bittiming bittiming;
struct can_bittiming_const *bittiming_const;
struct can_clock clock;
enum can_state state;
u32 ctrlmode;
u32 ctrlmode_supported;
int restart_ms;
struct timer_list restart_timer;
int (*do_set_bittiming)(struct net_device *dev);
int (*do_set_mode)(struct net_device *dev, enum can_mode mode);
int (*do_get_state)(const struct net_device *dev,
enum can_state *state);
int (*do_get_berr_counter)(const struct net_device *dev,
struct can_berr_counter *bec);
unsigned int echo_skb_max;
struct sk_buff **echo_skb;
};
/*
* get_can_dlc(value) - helper macro to cast a given data length code (dlc)
* to __u8 and ensure the dlc value to be max. 8 bytes.
*
* To be used in the CAN netdriver receive path to ensure conformance with
* ISO 11898-1 Chapter 8.4.2.3 (DLC field)
*/
#define get_can_dlc(i) (min_t(__u8, (i), 8))
/* Drop a given socketbuffer if it does not contain a valid CAN frame. */
static inline int can_dropped_invalid_skb(struct net_device *dev,
struct sk_buff *skb)
{
const struct can_frame *cf = (struct can_frame *)skb->data;
if (unlikely(skb->len != sizeof(*cf) || cf->can_dlc > 8)) {
kfree_skb(skb);
dev->stats.tx_dropped++;
return 1;
}
return 0;
}
struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max);
void free_candev(struct net_device *dev);
int open_candev(struct net_device *dev);
void close_candev(struct net_device *dev);
int register_candev(struct net_device *dev);
void unregister_candev(struct net_device *dev);
int can_restart_now(struct net_device *dev);
void can_bus_off(struct net_device *dev);
void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
unsigned int idx);
unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx);
void can_free_echo_skb(struct net_device *dev, unsigned int idx);
struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf);
struct sk_buff *alloc_can_err_skb(struct net_device *dev,
struct can_frame **cf);
#endif /* CAN_DEV_H */

91
kernel/include/linux/can/error.h Normal file
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/*
* linux/can/error.h
*
* Definitions of the CAN error frame 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 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 */

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kernel/include/linux/can/gw.h Normal file
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/*
* 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

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/*
* 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 */

33
kernel/include/linux/can/platform/cc770.h Normal file
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#ifndef _CAN_PLATFORM_CC770_H_
#define _CAN_PLATFORM_CC770_H_
/* CPU Interface Register (0x02) */
#define CPUIF_CEN 0x01 /* Clock Out Enable */
#define CPUIF_MUX 0x04 /* Multiplex */
#define CPUIF_SLP 0x08 /* Sleep */
#define CPUIF_PWD 0x10 /* Power Down Mode */
#define CPUIF_DMC 0x20 /* Divide Memory Clock */
#define CPUIF_DSC 0x40 /* Divide System Clock */
#define CPUIF_RST 0x80 /* Hardware Reset Status */
/* Clock Out Register (0x1f) */
#define CLKOUT_CD_MASK 0x0f /* Clock Divider mask */
#define CLKOUT_SL_MASK 0x30 /* Slew Rate mask */
#define CLKOUT_SL_SHIFT 4
/* Bus Configuration Register (0x2f) */
#define BUSCFG_DR0 0x01 /* Disconnect RX0 Input / Select RX input */
#define BUSCFG_DR1 0x02 /* Disconnect RX1 Input / Silent mode */
#define BUSCFG_DT1 0x08 /* Disconnect TX1 Output */
#define BUSCFG_POL 0x20 /* Polarity dominant or recessive */
#define BUSCFG_CBY 0x40 /* Input Comparator Bypass */
struct cc770_platform_data {
u32 osc_freq; /* CAN bus oscillator frequency in Hz */
u8 cir; /* CPU Interface Register */
u8 cor; /* Clock Out Register */
u8 bcr; /* Bus Configuration Register */
};
#endif /* !_CAN_PLATFORM_CC770_H_ */

20
kernel/include/linux/can/platform/flexcan.h Normal file
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/*
* Copyright (C) 2010 Marc Kleine-Budde <kernel@pengutronix.de>
*
* This file is released under the GPLv2
*
*/
#ifndef __CAN_PLATFORM_FLEXCAN_H
#define __CAN_PLATFORM_FLEXCAN_H
/**
* struct flexcan_platform_data - flex CAN controller platform data
* @transceiver_enable: - called to power on/off the transceiver
*
*/
struct flexcan_platform_data {
void (*transceiver_switch)(int enable);
};
#endif /* __CAN_PLATFORM_FLEXCAN_H */

34
kernel/include/linux/can/platform/mcp251x.h Normal file
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#ifndef __CAN_PLATFORM_MCP251X_H__
#define __CAN_PLATFORM_MCP251X_H__
/*
*
* CAN bus driver for Microchip 251x CAN Controller with SPI Interface
*
*/
#include <linux/spi/spi.h>
/**
* struct mcp251x_platform_data - MCP251X SPI CAN controller platform data
* @oscillator_frequency: - oscillator frequency in Hz
* @irq_flags: - IRQF configuration flags
* @board_specific_setup: - called before probing the chip (power,reset)
* @transceiver_enable: - called to power on/off the transceiver
* @power_enable: - called to power on/off the mcp *and* the
* transceiver
*
* Please note that you should define power_enable or transceiver_enable or
* none of them. Defining both of them is no use.
*
*/
struct mcp251x_platform_data {
unsigned long oscillator_frequency;
unsigned long irq_flags;
int (*board_specific_setup)(struct spi_device *spi);
int (*transceiver_enable)(int enable);
int (*power_enable) (int enable);
};
#endif /* __CAN_PLATFORM_MCP251X_H__ */

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kernel/include/linux/can/platform/sja1000.h Normal file
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#ifndef _CAN_PLATFORM_SJA1000_H_
#define _CAN_PLATFORM_SJA1000_H_
/* clock divider register */
#define CDR_CLKOUT_MASK 0x07
#define CDR_CLK_OFF 0x08 /* Clock off (CLKOUT pin) */
#define CDR_RXINPEN 0x20 /* TX1 output is RX irq output */
#define CDR_CBP 0x40 /* CAN input comparator bypass */
#define CDR_PELICAN 0x80 /* PeliCAN mode */
/* output control register */
#define OCR_MODE_BIPHASE 0x00
#define OCR_MODE_TEST 0x01
#define OCR_MODE_NORMAL 0x02
#define OCR_MODE_CLOCK 0x03
#define OCR_MODE_MASK 0x07
#define OCR_TX0_INVERT 0x04
#define OCR_TX0_PULLDOWN 0x08
#define OCR_TX0_PULLUP 0x10
#define OCR_TX0_PUSHPULL 0x18
#define OCR_TX1_INVERT 0x20
#define OCR_TX1_PULLDOWN 0x40
#define OCR_TX1_PULLUP 0x80
#define OCR_TX1_PUSHPULL 0xc0
#define OCR_TX_MASK 0xfc
#define OCR_TX_SHIFT 2
struct sja1000_platform_data {
u32 osc_freq; /* CAN bus oscillator frequency in Hz */
u8 ocr; /* output control register */
u8 cdr; /* clock divider register */
};
#endif /* !_CAN_PLATFORM_SJA1000_H_ */

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kernel/include/linux/can/platform/ti_hecc.h Normal file
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#ifndef __CAN_PLATFORM_TI_HECC_H__
#define __CAN_PLATFORM_TI_HECC_H__
/*
* TI HECC (High End CAN Controller) driver platform header
*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed as is WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
/**
* struct hecc_platform_data - HECC Platform Data
*
* @scc_hecc_offset: mostly 0 - should really never change
* @scc_ram_offset: SCC RAM offset
* @hecc_ram_offset: HECC RAM offset
* @mbx_offset: Mailbox RAM offset
* @int_line: Interrupt line to use - 0 or 1
* @version: version for future use
* @transceiver_switch: platform specific callback fn for transceiver control
*
* Platform data structure to get all platform specific settings.
* this structure also accounts the fact that the IP may have different
* RAM and mailbox offsets for different SOC's
*/
struct ti_hecc_platform_data {
u32 scc_hecc_offset;
u32 scc_ram_offset;
u32 hecc_ram_offset;
u32 mbx_offset;
u32 int_line;
u32 version;
void (*transceiver_switch) (int);
};
#endif

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/*
* 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) */
};
#endif