Staging: cpc-usb: convert comment style in cpc.h

Signed-off-by: Felipe Balbi <me@felipebalbi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Felipe Balbi 2009-07-21 17:35:50 +03:00 committed by Greg Kroah-Hartman
parent b8868e45c5
commit 4bbd9365c8

View File

@ -10,243 +10,223 @@
#ifndef CPC_HEADER
#define CPC_HEADER
// the maximum length of the union members within a CPC_MSG
// this value can be defined by the customer, but has to be
// >= 64 bytes
// however, if not defined before, we set a length of 64 byte
/*
* the maximum length of the union members within a CPC_MSG
* this value can be defined by the customer, but has to be
* >= 64 bytes
* however, if not defined before, we set a length of 64 byte
*/
#if !defined(CPC_MSG_LEN) || (CPC_MSG_LEN < 64)
#undef CPC_MSG_LEN
#define CPC_MSG_LEN 64
#endif
// check the operating system used
#ifdef _WIN32 // running a Windows OS
/*
* Transmission of events from CPC interfaces to PC can be individually
* controlled per event type. Default state is: don't transmit
* Control values are constructed by bit-or of Subject and Action
* and passed to CPC_Control()
*/
// define basic types on Windows platforms
#ifdef _MSC_VER // Visual Studio
typedef unsigned __int8 u8;
typedef unsigned __int16 u16;
typedef unsigned __int32 u32;
#else // Borland Compiler
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
#endif
// on Windows OS we use a byte alignment of 1
#pragma pack(push, 1)
// set the calling conventions for the library function calls
#define CALL_CONV __stdcall
#else
// Kernel headers already define this types
#ifndef __KERNEL__
// define basic types
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
#endif
// Linux does not use this calling convention
#define CALL_CONV
#endif
// Transmission of events from CPC interfaces to PC can be individually
// controlled per event type. Default state is: don't transmit
// Control values are constructed by bit-or of Subject and Action
// and passed to CPC_Control()
// Control-Values for CPC_Control() Command Subject Selection
/* Control-Values for CPC_Control() Command Subject Selection */
#define CONTR_CAN_Message 0x04
#define CONTR_Busload 0x08
#define CONTR_CAN_State 0x0C
#define CONTR_SendAck 0x10
#define CONTR_Filter 0x14
#define CONTR_CmdQueue 0x18 // reserved, do not use
#define CONTR_CmdQueue 0x18 /* reserved, do not use */
#define CONTR_BusError 0x1C
// Control Command Actions
/* Control Command Actions */
#define CONTR_CONT_OFF 0
#define CONTR_CONT_ON 1
#define CONTR_SING_ON 2
// CONTR_SING_ON doesn't change CONTR_CONT_ON state, so it should be
// read as: transmit at least once
/*
* CONTR_SING_ON doesn't change CONTR_CONT_ON state, so it should be
* read as: transmit at least once
*/
// defines for confirmed request
/* defines for confirmed request */
#define DO_NOT_CONFIRM 0
#define DO_CONFIRM 1
// event flags
/* event flags */
#define EVENT_READ 0x01
#define EVENT_WRITE 0x02
// Messages from CPC to PC contain a message object type field.
// The following message types are sent by CPC and can be used in
// handlers, others should be ignored.
#define CPC_MSG_T_RESYNC 0 // Normally to be ignored
#define CPC_MSG_T_CAN 1 // CAN data frame
#define CPC_MSG_T_BUSLOAD 2 // Busload message
#define CPC_MSG_T_STRING 3 // Normally to be ignored
#define CPC_MSG_T_CONTI 4 // Normally to be ignored
#define CPC_MSG_T_MEM 7 // Normally not to be handled
#define CPC_MSG_T_RTR 8 // CAN remote frame
#define CPC_MSG_T_TXACK 9 // Send acknowledge
#define CPC_MSG_T_POWERUP 10 // Power-up message
#define CPC_MSG_T_CMD_NO 11 // Normally to be ignored
#define CPC_MSG_T_CAN_PRMS 12 // Actual CAN parameters
#define CPC_MSG_T_ABORTED 13 // Command aborted message
#define CPC_MSG_T_CANSTATE 14 // CAN state message
#define CPC_MSG_T_RESET 15 // used to reset CAN-Controller
#define CPC_MSG_T_XCAN 16 // XCAN data frame
#define CPC_MSG_T_XRTR 17 // XCAN remote frame
#define CPC_MSG_T_INFO 18 // information strings
#define CPC_MSG_T_CONTROL 19 // used for control of interface/driver behaviour
#define CPC_MSG_T_CONFIRM 20 // response type for confirmed requests
#define CPC_MSG_T_OVERRUN 21 // response type for overrun conditions
#define CPC_MSG_T_KEEPALIVE 22 // response type for keep alive conditions
#define CPC_MSG_T_CANERROR 23 // response type for bus error conditions
#define CPC_MSG_T_DISCONNECTED 24 // response type for a disconnected interface
#define CPC_MSG_T_ERR_COUNTER 25 // RX/TX error counter of CAN controller
/*
* Messages from CPC to PC contain a message object type field.
* The following message types are sent by CPC and can be used in
* handlers, others should be ignored.
*/
#define CPC_MSG_T_RESYNC 0 /* Normally to be ignored */
#define CPC_MSG_T_CAN 1 /* CAN data frame */
#define CPC_MSG_T_BUSLOAD 2 /* Busload message */
#define CPC_MSG_T_STRING 3 /* Normally to be ignored */
#define CPC_MSG_T_CONTI 4 /* Normally to be ignored */
#define CPC_MSG_T_MEM 7 /* Normally not to be handled */
#define CPC_MSG_T_RTR 8 /* CAN remote frame */
#define CPC_MSG_T_TXACK 9 /* Send acknowledge */
#define CPC_MSG_T_POWERUP 10 /* Power-up message */
#define CPC_MSG_T_CMD_NO 11 /* Normally to be ignored */
#define CPC_MSG_T_CAN_PRMS 12 /* Actual CAN parameters */
#define CPC_MSG_T_ABORTED 13 /* Command aborted message */
#define CPC_MSG_T_CANSTATE 14 /* CAN state message */
#define CPC_MSG_T_RESET 15 /* used to reset CAN-Controller */
#define CPC_MSG_T_XCAN 16 /* XCAN data frame */
#define CPC_MSG_T_XRTR 17 /* XCAN remote frame */
#define CPC_MSG_T_INFO 18 /* information strings */
#define CPC_MSG_T_CONTROL 19 /* used for control of interface/driver behaviour */
#define CPC_MSG_T_CONFIRM 20 /* response type for confirmed requests */
#define CPC_MSG_T_OVERRUN 21 /* response type for overrun conditions */
#define CPC_MSG_T_KEEPALIVE 22 /* response type for keep alive conditions */
#define CPC_MSG_T_CANERROR 23 /* response type for bus error conditions */
#define CPC_MSG_T_DISCONNECTED 24 /* response type for a disconnected interface */
#define CPC_MSG_T_ERR_COUNTER 25 /* RX/TX error counter of CAN controller */
#define CPC_MSG_T_FIRMWARE 100 // response type for USB firmware download
#define CPC_MSG_T_FIRMWARE 100 /* response type for USB firmware download */
// Messages from the PC to the CPC interface contain a command field
// Most of the command types are wrapped by the library functions and have therefore
// normally not to be used.
// However, programmers who wish to circumvent the library and talk directly
// to the drivers (mainly Linux programmers) can use the following
// command types:
/*
* Messages from the PC to the CPC interface contain a command field
* Most of the command types are wrapped by the library functions and have therefore
* normally not to be used.
* However, programmers who wish to circumvent the library and talk directly
* to the drivers (mainly Linux programmers) can use the following
* command types:
*/
#define CPC_CMD_T_CAN 1 /* CAN data frame */
#define CPC_CMD_T_CONTROL 3 /* used for control of interface/driver behaviour */
#define CPC_CMD_T_CAN_PRMS 6 /* set CAN parameters */
#define CPC_CMD_T_CLEARBUF 8 /* clears input queue; this is depricated, use CPC_CMD_T_CLEAR_MSG_QUEUE instead */
#define CPC_CMD_T_INQ_CAN_PARMS 11 /* inquire actual CAN parameters */
#define CPC_CMD_T_FILTER_PRMS 12 /* set filter parameter */
#define CPC_CMD_T_RTR 13 /* CAN remote frame */
#define CPC_CMD_T_CANSTATE 14 /* CAN state message */
#define CPC_CMD_T_XCAN 15 /* XCAN data frame */
#define CPC_CMD_T_XRTR 16 /* XCAN remote frame */
#define CPC_CMD_T_RESET 17 /* used to reset CAN-Controller */
#define CPC_CMD_T_INQ_INFO 18 /* miscellanous information strings */
#define CPC_CMD_T_OPEN_CHAN 19 /* open a channel */
#define CPC_CMD_T_CLOSE_CHAN 20 /* close a channel */
#define CPC_CMD_T_CNTBUF 21 /* this is depricated, use CPC_CMD_T_INQ_MSG_QUEUE_CNT instead */
#define CPC_CMD_T_CAN_EXIT 200 /* exit the CAN (disable interrupts; reset bootrate; reset output_cntr; mode = 1) */
#define CPC_CMD_T_CAN 1 // CAN data frame
#define CPC_CMD_T_CONTROL 3 // used for control of interface/driver behaviour
#define CPC_CMD_T_CAN_PRMS 6 // set CAN parameters
#define CPC_CMD_T_CLEARBUF 8 // clears input queue; this is depricated, use CPC_CMD_T_CLEAR_MSG_QUEUE instead
#define CPC_CMD_T_INQ_CAN_PARMS 11 // inquire actual CAN parameters
#define CPC_CMD_T_FILTER_PRMS 12 // set filter parameter
#define CPC_CMD_T_RTR 13 // CAN remote frame
#define CPC_CMD_T_CANSTATE 14 // CAN state message
#define CPC_CMD_T_XCAN 15 // XCAN data frame
#define CPC_CMD_T_XRTR 16 // XCAN remote frame
#define CPC_CMD_T_RESET 17 // used to reset CAN-Controller
#define CPC_CMD_T_INQ_INFO 18 // miscellanous information strings
#define CPC_CMD_T_OPEN_CHAN 19 // open a channel
#define CPC_CMD_T_CLOSE_CHAN 20 // close a channel
#define CPC_CMD_T_CNTBUF 21 // this is depricated, use CPC_CMD_T_INQ_MSG_QUEUE_CNT instead
#define CPC_CMD_T_CAN_EXIT 200 // exit the CAN (disable interrupts; reset bootrate; reset output_cntr; mode = 1)
#define CPC_CMD_T_INQ_MSG_QUEUE_CNT CPC_CMD_T_CNTBUF /* inquires the count of elements in the message queue */
#define CPC_CMD_T_INQ_ERR_COUNTER 25 /* request the CAN controllers error counter */
#define CPC_CMD_T_CLEAR_MSG_QUEUE CPC_CMD_T_CLEARBUF /* clear CPC_MSG queue */
#define CPC_CMD_T_CLEAR_CMD_QUEUE 28 /* clear CPC_CMD queue */
#define CPC_CMD_T_FIRMWARE 100 /* reserved, must not be used */
#define CPC_CMD_T_USB_RESET 101 /* reserved, must not be used */
#define CPC_CMD_T_WAIT_NOTIFY 102 /* reserved, must not be used */
#define CPC_CMD_T_WAIT_SETUP 103 /* reserved, must not be used */
#define CPC_CMD_T_ABORT 255 /* Normally not to be used */
#define CPC_CMD_T_INQ_MSG_QUEUE_CNT CPC_CMD_T_CNTBUF // inquires the count of elements in the message queue
#define CPC_CMD_T_INQ_ERR_COUNTER 25 // request the CAN controllers error counter
#define CPC_CMD_T_CLEAR_MSG_QUEUE CPC_CMD_T_CLEARBUF // clear CPC_MSG queue
#define CPC_CMD_T_CLEAR_CMD_QUEUE 28 // clear CPC_CMD queue
#define CPC_CMD_T_FIRMWARE 100 // reserved, must not be used
#define CPC_CMD_T_USB_RESET 101 // reserved, must not be used
#define CPC_CMD_T_WAIT_NOTIFY 102 // reserved, must not be used
#define CPC_CMD_T_WAIT_SETUP 103 // reserved, must not be used
#define CPC_CMD_T_ABORT 255 // Normally not to be used
// definitions for CPC_MSG_T_INFO
// information sources
/* definitions for CPC_MSG_T_INFO information sources */
#define CPC_INFOMSG_T_UNKNOWN_SOURCE 0
#define CPC_INFOMSG_T_INTERFACE 1
#define CPC_INFOMSG_T_DRIVER 2
#define CPC_INFOMSG_T_LIBRARY 3
// information types
/* information types */
#define CPC_INFOMSG_T_UNKNOWN_TYPE 0
#define CPC_INFOMSG_T_VERSION 1
#define CPC_INFOMSG_T_SERIAL 2
// definitions for controller types
#define PCA82C200 1 // Philips basic CAN controller, replaced by SJA1000
#define SJA1000 2 // Philips basic CAN controller
#define AN82527 3 // Intel full CAN controller
#define M16C_BASIC 4 // M16C controller running in basic CAN (not full CAN) mode
/* definitions for controller types */
#define PCA82C200 1 /* Philips basic CAN controller, replaced by SJA1000 */
#define SJA1000 2 /* Philips basic CAN controller */
#define AN82527 3 /* Intel full CAN controller */
#define M16C_BASIC 4 /* M16C controller running in basic CAN (not full CAN) mode */
// channel open error codes
#define CPC_ERR_NO_FREE_CHANNEL -1 // no more free space within the channel array
#define CPC_ERR_CHANNEL_ALREADY_OPEN -2 // the channel is already open
#define CPC_ERR_CHANNEL_NOT_ACTIVE -3 // access to a channel not active failed
#define CPC_ERR_NO_DRIVER_PRESENT -4 // no driver at the location searched by the library
#define CPC_ERR_NO_INIFILE_PRESENT -5 // the library could not find the inifile
#define CPC_ERR_WRONG_PARAMETERS -6 // wrong parameters in the inifile
#define CPC_ERR_NO_INTERFACE_PRESENT -7 // 1. The specified interface is not connected
// 2. The interface (mostly CPC-USB) was disconnected upon operation
#define CPC_ERR_NO_MATCHING_CHANNEL -8 // the driver couldn't find a matching channel
#define CPC_ERR_NO_BUFFER_AVAILABLE -9 // the driver couldn't allocate buffer for messages
#define CPC_ERR_NO_INTERRUPT -10 // the requested interrupt couldn't be claimed
#define CPC_ERR_NO_MATCHING_INTERFACE -11 // no interface type related to this channel was found
#define CPC_ERR_NO_RESOURCES -12 // the requested resources could not be claimed
#define CPC_ERR_SOCKET -13 // error concerning TCP sockets
/* channel open error codes */
#define CPC_ERR_NO_FREE_CHANNEL -1 /* no more free space within the channel array */
#define CPC_ERR_CHANNEL_ALREADY_OPEN -2 /* the channel is already open */
#define CPC_ERR_CHANNEL_NOT_ACTIVE -3 /* access to a channel not active failed */
#define CPC_ERR_NO_DRIVER_PRESENT -4 /* no driver at the location searched by the library */
#define CPC_ERR_NO_INIFILE_PRESENT -5 /* the library could not find the inifile */
#define CPC_ERR_WRONG_PARAMETERS -6 /* wrong parameters in the inifile */
#define CPC_ERR_NO_INTERFACE_PRESENT -7 /* 1. The specified interface is not connected */
/* 2. The interface (mostly CPC-USB) was disconnected upon operation */
#define CPC_ERR_NO_MATCHING_CHANNEL -8 /* the driver couldn't find a matching channel */
#define CPC_ERR_NO_BUFFER_AVAILABLE -9 /* the driver couldn't allocate buffer for messages */
#define CPC_ERR_NO_INTERRUPT -10 /* the requested interrupt couldn't be claimed */
#define CPC_ERR_NO_MATCHING_INTERFACE -11 /* no interface type related to this channel was found */
#define CPC_ERR_NO_RESOURCES -12 /* the requested resources could not be claimed */
#define CPC_ERR_SOCKET -13 /* error concerning TCP sockets */
// init error codes
#define CPC_ERR_WRONG_CONTROLLER_TYPE -14 // wrong CAN controller type within initialization
#define CPC_ERR_NO_RESET_MODE -15 // the controller could not be set into reset mode
#define CPC_ERR_NO_CAN_ACCESS -16 // the CAN controller could not be accessed
/* init error codes */
#define CPC_ERR_WRONG_CONTROLLER_TYPE -14 /* wrong CAN controller type within initialization */
#define CPC_ERR_NO_RESET_MODE -15 /* the controller could not be set into reset mode */
#define CPC_ERR_NO_CAN_ACCESS -16 /* the CAN controller could not be accessed */
// transmit error codes
#define CPC_ERR_CAN_WRONG_ID -20 // the provided CAN id is too big
#define CPC_ERR_CAN_WRONG_LENGTH -21 // the provided CAN length is too long
#define CPC_ERR_CAN_NO_TRANSMIT_BUF -22 // the transmit buffer was occupied
#define CPC_ERR_CAN_TRANSMIT_TIMEOUT -23 // The message could not be sent within a
// specified time
/* transmit error codes */
#define CPC_ERR_CAN_WRONG_ID -20 /* the provided CAN id is too big */
#define CPC_ERR_CAN_WRONG_LENGTH -21 /* the provided CAN length is too long */
#define CPC_ERR_CAN_NO_TRANSMIT_BUF -22 /* the transmit buffer was occupied */
#define CPC_ERR_CAN_TRANSMIT_TIMEOUT -23 /* The message could not be sent within a */
/* specified time */
// other error codes
#define CPC_ERR_SERVICE_NOT_SUPPORTED -30 // the requested service is not supported by the interface
#define CPC_ERR_IO_TRANSFER -31 // a transmission error down to the driver occurred
#define CPC_ERR_TRANSMISSION_FAILED -32 // a transmission error down to the interface occurred
#define CPC_ERR_TRANSMISSION_TIMEOUT -33 // a timeout occurred within transmission to the interface
#define CPC_ERR_OP_SYS_NOT_SUPPORTED -35 // the operating system is not supported
#define CPC_ERR_UNKNOWN -40 // an unknown error ocurred (mostly IOCTL errors)
/* other error codes */
#define CPC_ERR_SERVICE_NOT_SUPPORTED -30 /* the requested service is not supported by the interface */
#define CPC_ERR_IO_TRANSFER -31 /* a transmission error down to the driver occurred */
#define CPC_ERR_TRANSMISSION_FAILED -32 /* a transmission error down to the interface occurred */
#define CPC_ERR_TRANSMISSION_TIMEOUT -33 /* a timeout occurred within transmission to the interface */
#define CPC_ERR_OP_SYS_NOT_SUPPORTED -35 /* the operating system is not supported */
#define CPC_ERR_UNKNOWN -40 /* an unknown error ocurred (mostly IOCTL errors) */
#define CPC_ERR_LOADING_DLL -50 // the library 'cpcwin.dll' could not be loaded
#define CPC_ERR_ASSIGNING_FUNCTION -51 // the specified function could not be assigned
#define CPC_ERR_DLL_INITIALIZATION -52 // the DLL was not initialized correctly
#define CPC_ERR_MISSING_LICFILE -55 // the file containing the licenses does not exist
#define CPC_ERR_MISSING_LICENSE -56 // a required license was not found
#define CPC_ERR_LOADING_DLL -50 /* the library 'cpcwin.dll' could not be loaded */
#define CPC_ERR_ASSIGNING_FUNCTION -51 /* the specified function could not be assigned */
#define CPC_ERR_DLL_INITIALIZATION -52 /* the DLL was not initialized correctly */
#define CPC_ERR_MISSING_LICFILE -55 /* the file containing the licenses does not exist */
#define CPC_ERR_MISSING_LICENSE -56 /* a required license was not found */
// CAN state bit values. Ignore any bits not listed
/* CAN state bit values. Ignore any bits not listed */
#define CPC_CAN_STATE_BUSOFF 0x80
#define CPC_CAN_STATE_ERROR 0x40
// Mask to help ignore undefined bits
/* Mask to help ignore undefined bits */
#define CPC_CAN_STATE_MASK 0xc0
// CAN-Message representation in a CPC_MSG
// Message object type is CPC_MSG_T_CAN or CPC_MSG_T_RTR
// or CPC_MSG_T_XCAN or CPC_MSG_T_XRTR
/*
* CAN-Message representation in a CPC_MS
* Message object type is CPC_MSG_T_CAN or CPC_MSG_T_RTR
* or CPC_MSG_T_XCAN or CPC_MSG_T_XRTR
*/
typedef struct CPC_CAN_MSG {
u32 id;
u8 length;
u8 msg[8];
} CPC_CAN_MSG_T;
// representation of the CAN parameters for the PCA82C200 controller
/* representation of the CAN parameters for the PCA82C200 controller */
typedef struct CPC_PCA82C200_PARAMS {
u8 acc_code; // Acceptance-code for receive, Standard: 0
u8 acc_mask; // Acceptance-mask for receive, Standard: 0xff (everything)
u8 btr0; // Bus-timing register 0
u8 btr1; // Bus-timing register 1
u8 outp_contr; // Output-control register
u8 acc_code; /* Acceptance-code for receive, Standard: 0 */
u8 acc_mask; /* Acceptance-mask for receive, Standard: 0xff (everything) */
u8 btr0; /* Bus-timing register 0 */
u8 btr1; /* Bus-timing register 1 */
u8 outp_contr; /* Output-control register */
} CPC_PCA82C200_PARAMS_T;
// representation of the CAN parameters for the SJA1000 controller
/* representation of the CAN parameters for the SJA1000 controller */
typedef struct CPC_SJA1000_PARAMS {
u8 mode; // enables single or dual acceptance filtering
u8 acc_code0; // Acceptance-code for receive, Standard: 0
u8 mode; /* enables single or dual acceptance filtering */
u8 acc_code0; /* Acceptance-code for receive, Standard: 0 */
u8 acc_code1;
u8 acc_code2;
u8 acc_code3;
u8 acc_mask0; // Acceptance-mask for receive, Standard: 0xff (everything)
u8 acc_mask0; /* Acceptance-mask for receive, Standard: 0xff (everything) */
u8 acc_mask1;
u8 acc_mask2;
u8 acc_mask3;
u8 btr0; // Bus-timing register 0
u8 btr1; // Bus-timing register 1
u8 outp_contr; // Output-control register
u8 btr0; /* Bus-timing register 0 */
u8 btr1; /* Bus-timing register 1 */
u8 outp_contr; /* Output-control register */
} CPC_SJA1000_PARAMS_T;
// representation of the CAN parameters for the M16C controller
// in basic CAN mode (means no full CAN)
/*
* representation of the CAN parameters for the M16C controller
* in basic CAN mode (means no full CAN)
*/
typedef struct CPC_M16C_BASIC_PARAMS {
u8 con0;
u8 con1;
@ -267,9 +247,9 @@ typedef struct CPC_M16C_BASIC_PARAMS {
u8 acc_ext_mask3;
} CPC_M16C_BASIC_PARAMS_T;
// CAN params message representation
/* CAN params message representation */
typedef struct CPC_CAN_PARAMS {
u8 cc_type; // represents the controller type
u8 cc_type; /* represents the controller type */
union {
CPC_M16C_BASIC_PARAMS_T m16c_basic;
CPC_SJA1000_PARAMS_T sja1000;
@ -277,111 +257,108 @@ typedef struct CPC_CAN_PARAMS {
} cc_params;
} CPC_CAN_PARAMS_T;
// the following structures are slightly different for Windows and Linux
// To be able to use the 'Select' mechanism with Linux the application
// needs to know the devices file desciptor.
// This mechanism is not implemented within Windows and the file descriptor
// is therefore not needed
#ifdef _WIN32
// CAN init params message representation
typedef struct CPC_INIT_PARAMS {
CPC_CAN_PARAMS_T canparams;
} CPC_INIT_PARAMS_T;
#else// Linux
// CHAN init params representation
/* CHAN init params representation */
typedef struct CPC_CHAN_PARAMS {
int fd;
} CPC_CHAN_PARAMS_T;
// CAN init params message representation
/* CAN init params message representation */
typedef struct CPC_INIT_PARAMS {
CPC_CHAN_PARAMS_T chanparams;
CPC_CAN_PARAMS_T canparams;
} CPC_INIT_PARAMS_T;
#endif
// structure for confirmed message handling
/* structure for confirmed message handling */
typedef struct CPC_CONFIRM {
u8 result; // error code
u8 result; /* error code */
} CPC_CONFIRM_T;
// structure for information requests
/* structure for information requests */
typedef struct CPC_INFO {
u8 source; // interface, driver or library
u8 type; // version or serial number
char msg[CPC_MSG_LEN - 2]; // string holding the requested information
u8 source; /* interface, driver or library */
u8 type; /* version or serial number */
char msg[CPC_MSG_LEN - 2]; /* string holding the requested information */
} CPC_INFO_T;
// OVERRUN ///////////////////////////////////////
// In general two types of overrun may occur.
// A hardware overrun, where the CAN controller
// lost a message, because the interrupt was
// not handled before the next messgae comes in.
// Or a software overrun, where i.e. a received
// message could not be stored in the CPC_MSG
// buffer.
/*
* OVERRUN
* In general two types of overrun may occur.
* A hardware overrun, where the CAN controller
* lost a message, because the interrupt was
* not handled before the next messgae comes in.
* Or a software overrun, where i.e. a received
* message could not be stored in the CPC_MSG
* buffer.
*/
// After a software overrun has occurred
// we wait until we have CPC_OVR_GAP slots
// free in the CPC_MSG buffer.
/* After a software overrun has occurred
* we wait until we have CPC_OVR_GAP slots
* free in the CPC_MSG buffer.
*/
#define CPC_OVR_GAP 10
// Two types of software overrun may occur.
// A received CAN message or a CAN state event
// can cause an overrun.
// Note: A CPC_CMD which would normally store
// its result immediately in the CPC_MSG
// queue may fail, because the message queue is full.
// This will not generate an overrun message, but
// will halt command execution, until this command
// is able to store its message in the message queue.
/*
* Two types of software overrun may occur.
* A received CAN message or a CAN state event
* can cause an overrun.
* Note: A CPC_CMD which would normally store
* its result immediately in the CPC_MSG
* queue may fail, because the message queue is full.
* This will not generate an overrun message, but
* will halt command execution, until this command
* is able to store its message in the message queue.
*/
#define CPC_OVR_EVENT_CAN 0x01
#define CPC_OVR_EVENT_CANSTATE 0x02
#define CPC_OVR_EVENT_BUSERROR 0x04
// If the CAN controller lost a message
// we indicate it with the highest bit
// set in the count field.
/*
* If the CAN controller lost a message
* we indicate it with the highest bit
* set in the count field.
*/
#define CPC_OVR_HW 0x80
// structure for overrun conditions
/* structure for overrun conditions */
typedef struct {
u8 event;
u8 count;
} CPC_OVERRUN_T;
// CAN errors ////////////////////////////////////
// Each CAN controller type has different
// registers to record errors.
// Therefor a structure containing the specific
// errors is set up for each controller here
/*
* CAN errors
* Each CAN controller type has different
* registers to record errors.
* Therefor a structure containing the specific
* errors is set up for each controller here
*/
// SJA1000 error structure
// see the SJA1000 datasheet for detailed
// explanation of the registers
/*
* SJA1000 error structure
* see the SJA1000 datasheet for detailed
* explanation of the registers
*/
typedef struct CPC_SJA1000_CAN_ERROR {
u8 ecc; // error capture code register
u8 rxerr; // RX error counter register
u8 txerr; // TX error counter register
u8 ecc; /* error capture code register */
u8 rxerr; /* RX error counter register */
u8 txerr; /* TX error counter register */
} CPC_SJA1000_CAN_ERROR_T;
// M16C error structure
// see the M16C datasheet for detailed
// explanation of the registers
/*
* M16C error structure
* see the M16C datasheet for detailed
* explanation of the registers
*/
typedef struct CPC_M16C_CAN_ERROR {
u8 tbd; // to be defined
u8 tbd; /* to be defined */
} CPC_M16C_CAN_ERROR_T;
// structure for CAN error conditions
/* structure for CAN error conditions */
#define CPC_CAN_ECODE_ERRFRAME 0x01
typedef struct CPC_CAN_ERROR {
u8 ecode;
struct {
u8 cc_type; // CAN controller type
u8 cc_type; /* CAN controller type */
union {
CPC_SJA1000_CAN_ERROR_T sja1000;
CPC_M16C_CAN_ERROR_T m16c;
@ -389,36 +366,40 @@ typedef struct CPC_CAN_ERROR {
} cc;
} CPC_CAN_ERROR_T;
// Structure containing RX/TX error counter.
// This structure is used to request the
// values of the CAN controllers TX and RX
// error counter.
/*
* Structure containing RX/TX error counter.
* This structure is used to request the
* values of the CAN controllers TX and RX
* error counter.
*/
typedef struct CPC_CAN_ERR_COUNTER {
u8 rx;
u8 tx;
} CPC_CAN_ERR_COUNTER_T;
// If this flag is set, transmissions from PC to CPC are protected against loss
/* If this flag is set, transmissions from PC to CPC are protected against loss */
#define CPC_SECURE_TO_CPC 0x01
// If this flag is set, transmissions from CPC to PC are protected against loss
/* If this flag is set, transmissions from CPC to PC are protected against loss */
#define CPC_SECURE_TO_PC 0x02
// If this flag is set, the CAN-transmit buffer is checked to be free before sending a message
/* If this flag is set, the CAN-transmit buffer is checked to be free before sending a message */
#define CPC_SECURE_SEND 0x04
// If this flag is set, the transmission complete flag is checked
// after sending a message
// THIS IS CURRENTLY ONLY IMPLEMENTED IN THE PASSIVE INTERFACE DRIVERS
/*
* If this flag is set, the transmission complete flag is checked
* after sending a message
* THIS IS CURRENTLY ONLY IMPLEMENTED IN THE PASSIVE INTERFACE DRIVERS
*/
#define CPC_SECURE_TRANSMIT 0x08
// main message type used between library and application
/* main message type used between library and application */
typedef struct CPC_MSG {
u8 type; // type of message
u8 length; // length of data within union 'msg'
u8 msgid; // confirmation handle
u32 ts_sec; // timestamp in seconds
u32 ts_nsec; // timestamp in nano seconds
u8 type; /* type of message */
u8 length; /* length of data within union 'msg' */
u8 msgid; /* confirmation handle */
u32 ts_sec; /* timestamp in seconds */
u32 ts_nsec; /* timestamp in nano seconds */
union {
u8 generic[CPC_MSG_LEN];
CPC_CAN_MSG_T canmsg;
@ -433,8 +414,4 @@ typedef struct CPC_MSG {
} msg;
} CPC_MSG_T;
#ifdef _WIN32
#pragma pack(pop) // reset the byte alignment
#endif
#endif // CPC_HEADER
#endif /* CPC_HEADER */