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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /include/linux/can | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'include/linux/can')
-rw-r--r-- | include/linux/can/Kbuild | 5 | ||||
-rw-r--r-- | include/linux/can/bcm.h | 66 | ||||
-rw-r--r-- | include/linux/can/core.h | 61 | ||||
-rw-r--r-- | include/linux/can/dev.h | 102 | ||||
-rw-r--r-- | include/linux/can/error.h | 91 | ||||
-rw-r--r-- | include/linux/can/gw.h | 162 | ||||
-rw-r--r-- | include/linux/can/netlink.h | 122 | ||||
-rw-r--r-- | include/linux/can/platform/cc770.h | 33 | ||||
-rw-r--r-- | include/linux/can/platform/flexcan.h | 20 | ||||
-rw-r--r-- | include/linux/can/platform/mcp251x.h | 34 | ||||
-rw-r--r-- | include/linux/can/platform/sja1000.h | 35 | ||||
-rw-r--r-- | include/linux/can/platform/ti_hecc.h | 44 | ||||
-rw-r--r-- | include/linux/can/raw.h | 29 |
13 files changed, 804 insertions, 0 deletions
diff --git a/include/linux/can/Kbuild b/include/linux/can/Kbuild new file mode 100644 index 00000000..c62b7f17 --- /dev/null +++ b/include/linux/can/Kbuild @@ -0,0 +1,5 @@ +header-y += raw.h +header-y += bcm.h +header-y += gw.h +header-y += error.h +header-y += netlink.h diff --git a/include/linux/can/bcm.h b/include/linux/can/bcm.h new file mode 100644 index 00000000..3ebe387f --- /dev/null +++ b/include/linux/can/bcm.h @@ -0,0 +1,66 @@ +/* + * 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 */ diff --git a/include/linux/can/core.h b/include/linux/can/core.h new file mode 100644 index 00000000..0ccc1cd2 --- /dev/null +++ b/include/linux/can/core.h @@ -0,0 +1,61 @@ +/* + * 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 */ diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h new file mode 100644 index 00000000..5d2efe7e --- /dev/null +++ b/include/linux/can/dev.h @@ -0,0 +1,102 @@ +/* + * 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 */ diff --git a/include/linux/can/error.h b/include/linux/can/error.h new file mode 100644 index 00000000..63e855ea --- /dev/null +++ b/include/linux/can/error.h @@ -0,0 +1,91 @@ +/* + * 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 */ diff --git a/include/linux/can/gw.h b/include/linux/can/gw.h new file mode 100644 index 00000000..8e1db18c --- /dev/null +++ b/include/linux/can/gw.h @@ -0,0 +1,162 @@ +/* + * 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 diff --git a/include/linux/can/netlink.h b/include/linux/can/netlink.h new file mode 100644 index 00000000..14966ddb --- /dev/null +++ b/include/linux/can/netlink.h @@ -0,0 +1,122 @@ +/* + * 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 */ diff --git a/include/linux/can/platform/cc770.h b/include/linux/can/platform/cc770.h new file mode 100644 index 00000000..7702641f --- /dev/null +++ b/include/linux/can/platform/cc770.h @@ -0,0 +1,33 @@ +#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_ */ diff --git a/include/linux/can/platform/flexcan.h b/include/linux/can/platform/flexcan.h new file mode 100644 index 00000000..72b713ab --- /dev/null +++ b/include/linux/can/platform/flexcan.h @@ -0,0 +1,20 @@ +/* + * 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 */ diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h new file mode 100644 index 00000000..089fe432 --- /dev/null +++ b/include/linux/can/platform/mcp251x.h @@ -0,0 +1,34 @@ +#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__ */ diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h new file mode 100644 index 00000000..96f8fcc7 --- /dev/null +++ b/include/linux/can/platform/sja1000.h @@ -0,0 +1,35 @@ +#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_ */ diff --git a/include/linux/can/platform/ti_hecc.h b/include/linux/can/platform/ti_hecc.h new file mode 100644 index 00000000..af17cb3f --- /dev/null +++ b/include/linux/can/platform/ti_hecc.h @@ -0,0 +1,44 @@ +#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 diff --git a/include/linux/can/raw.h b/include/linux/can/raw.h new file mode 100644 index 00000000..781f3a37 --- /dev/null +++ b/include/linux/can/raw.h @@ -0,0 +1,29 @@ +/* + * 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 |