#include <stddef.h>
#include <sys/types.h>

Include dependency graph for channel.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	DLL_EXPORT

#define	MAX_LONG_CHANNEL_NAME_LENGTH 255

#define	MAX_CHANNEL_NAME_LENGTH 64

#define	MAX_SIGNAL_UNIT_LENGTH 40

#define	MIN_DATA_TYPE _16bit_integer

#define	MAX_DATA_TYPE _32bit_uint

enum	chantype { cUnknown , cOnline , cRaw , cRDS , cSTrend , cMTrend , cTestPoint , cStatic , cSimData }
	Channel type code enumerator. More...

enum	daq_data_t { _undefined = 0 , _16bit_integer = 1 , _32bit_integer = 2 , _64bit_integer = 3 , _32bit_float = 4 , _64bit_double = 5 , _32bit_complex = 6 , _32bit_uint = 7 }

typedef enum chantype	chantype_t
	Channel type code enumerator.

DLL_EXPORT chantype_t	cvt_str_chantype (const char *str)

DLL_EXPORT const char *	cvt_chantype_str (chantype_t code)

DLL_EXPORT size_t	data_type_size (daq_data_t dtype)

DLL_EXPORT double	data_type_max (daq_data_t dtype)

DLL_EXPORT const char *	data_type_name (daq_data_t dtype)

DLL_EXPORT daq_data_t	data_type_code (const char *name)

DLL_EXPORT size_t	data_type_word (daq_data_t dtype)

Macro Definition Documentation

◆ DLL_EXPORT

#define DLL_EXPORT

◆ MAX_CHANNEL_NAME_LENGTH

#define MAX_CHANNEL_NAME_LENGTH 64

Allowed maximum length for DAQ channels

◆ MAX_DATA_TYPE

#define MAX_DATA_TYPE _32bit_uint

should be equal to the last data type

◆ MAX_LONG_CHANNEL_NAME_LENGTH

#define MAX_LONG_CHANNEL_NAME_LENGTH 255

Allowed maximum length for DMT channels

◆ MAX_SIGNAL_UNIT_LENGTH

#define MAX_SIGNAL_UNIT_LENGTH 40

Allowed maximum length for signal units

◆ MIN_DATA_TYPE

#define MIN_DATA_TYPE _16bit_integer

should be equal to the first data type

Enumeration Type Documentation

◆ daq_data_t

enum daq_data_t

Data type enumerator.

Remarks: numbering must be contiguous

Enumerator
_undefined	The data type is not defined.
_16bit_integer	16-bit (short) integer data.
_32bit_integer	32-bit (int) integer data.
_64bit_integer	64-bit (long) integer data.
_32bit_float	32-bit (float) floating point data.
_64bit_double	64-bit (double) floating point data.
_32bit_complex	Complex data from two 32-bit floats {re, im}.
_32bit_uint	Unsigned 32-bit integer.

Function Documentation

◆ cvt_chantype_str()

DLL_EXPORT const char * cvt_chantype_str ( chantype_t code )

Convert a channel type code to a string.

◆ cvt_str_chantype()

DLL_EXPORT chantype_t cvt_str_chantype ( const char * str )

Convert a channel type string to a channel type code

◆ data_type_code()

DLL_EXPORT daq_data_t data_type_code ( const char * name )

Function to return data type name.

◆ data_type_max()

DLL_EXPORT double data_type_max ( daq_data_t dtype )

Function to relate data types to maximum value.

◆ data_type_name()

DLL_EXPORT const char * data_type_name ( daq_data_t dtype )