myvtm/DevAdapter/include/DeviceBaseClass.h

/////////////////////////////////////////////////////////////////////////////////
///	Copyright (c) 2012 China Merchants Bank, all rights reserved	       	  ///
///										                         	       	  ///
///	Base defination for device adapter.                                                             	       	  ///
/// DeviceBaseClass.h: Interface for the DeviceBaseClass class.				  ///
///																			  ///
/////////////////////////////////////////////////////////////////////////////////

//	Return code(ErrorCodeEnum):
//	Error code that adapters returned mainly in the following list:
//	Error_Hardware=0x800,
//	Error_DevLoadFileFailed,	//load dll or config file failed
//	Error_DevNotAvailable,		//device not connected
//	Error_DevAlreadyConnected,	//device already connected
//	Error_DevConnFailed,		//connect to device failed
//	Error_DevCommFailed,		//Communication failed between HOST and Device
//	Error_DevMedia,				//Media error(Data lack,unrecognized and so on)
//	Adapters can also return error code which included in the file ErrorCode.h

//	The "Optional." in front of method's comment means this method to implement depends on device.
//	If the device don't have the function ,just return Error_Succeed simply,but must declare in the 
//	implementation document. 

#ifndef __DEVICE_BASE_CLASS_H
#define __DEVICE_BASE_CLASS_H

/** define device interface file version*/
#define  DEVICE_BASE_INTERFACE_FILE_VERSION 1

#define  DEVICE_STRINGIFY_HELPER(v) #v

#define DEVICE_ADAPTER_CLASS_STRINGFY(m, n)	\
	DEVICE_STRINGIFY_HELPER(DEVICE_BASE_INTERFACE_FILE_VERSION) "." \
	DEVICE_STRINGIFY_HELPER(m) "." DEVICE_STRINGIFY_HELPER(n)

#define DEVICE_ADAPTER_CLASS_COMBINE(v)	\
	((DEVICE_BASE_INTERFACE_FILE_VERSION << 16) | (v << 8) | (0))

#include "ErrorCode.h"

#if (!defined(_WIN32) && !defined(_WIN64))
#include <stdint.h>
#else
#include <wtypes.h>
#endif //NOT _WIN32

#if (defined(_WIN32) || defined(_WIN64))
#   ifdef DEVICEBASE_EXPORTS
#       define DEVICEBASE_API __declspec(dllexport)
#   else
#       define DEVICEBASE_API __declspec(dllimport)
#   endif
#elif ( defined(__GNUC__) &&  __GNUC__ >= 4 )
#   define DEVICEBASE_API __attribute__((visibility("default")))
#else
#   define DEVICEBASE_API
#endif


#ifdef __cplusplus
extern "C"
	{
#endif

const int MAX_DEV_TYPE_LEN = 256;
const int MAX_DEV_MODEL_LEN = 256;
const int MAX_DEV_VENDOR_LEN = 256;
const int MAX_DEV_ERROR_MSG_LEN = 256;


#ifndef RVC_VENDOE_BUILDIN_TYPE
#if (defined(_WIN32) || defined(_WIN64))
typedef unsigned char BYTE;
typedef BYTE  *LPBYTE;
typedef unsigned short WORD;
typedef unsigned long DWORD;
typedef unsigned long* PDWORD;
#else
typedef uint8_t BYTE;
typedef uint8_t* LPBYTE;
typedef uint16_t WORD;
typedef uint32_t DWORD;
typedef uint32_t* PDWORD;
typedef char CHAR;
#endif
#define RVC_VENDOE_BUILDIN_TYPE
#endif // !RVC_VENDOE_BUILDIN_TYPE




//version info of device software
struct DevSoftVersion
{
	WORD wMajor;		//release major version
	WORD wMinor;		//release minor version
	WORD wRevision;		//bug repair version with the major and minor version remains the same
	WORD wBuild;		//compile version
};
enum DevStateEnum
{
	DEVICE_STATUS_NOT_READY,	//uninit
	DEVICE_STATUS_NORMAL,		//normal
	DEVICE_STATUS_MAINTAINCE,	//need to maintaince
								//ex:paper tray is empty,retain bin is full
	DEVICE_STATUS_FAULT,		//cannot work
	DEVICE_STATUS_CONNECTING,	//device connecting
	DEVICE_STATUS_NOCFG,		//the vtm has no such device
	DEVICE_STATUS_CROSS_USING,	//the device is in cross calling
};
struct DevCategoryInfo
{
	char szType[MAX_DEV_TYPE_LEN];	//device type sth like "CMB.Printer.HP1234"
	char szModel[MAX_DEV_MODEL_LEN];	//device model
	char szVendor[MAX_DEV_VENDOR_LEN];		//device vendor
	DevStateEnum eState;		//device status
	DevSoftVersion version;	//software version
};
struct DevErrorInfo
{
	DWORD dwErrMsgLen;
	char szErrMsg[MAX_DEV_ERROR_MSG_LEN];
};
class DeviceBaseClass  
{
public:
	
	virtual ~DeviceBaseClass() {}
	//	
	//	Get category infomation about device.
	//
	virtual ErrorCodeEnum GetDevCategory(DevCategoryInfo &devCategory) = 0;
	//
	//	Reset device.
	//	Do the cleaning work and initialize device again in order to return to
	//	the normal condition.
	virtual ErrorCodeEnum Reset() = 0;
	//	
	//	Close device and do the cleaning work.
	//	ex. close connection,close port,release memery and so on
	virtual ErrorCodeEnum DevClose() = 0;
	//
	//	Get last error the device issued.
	//	Error message must include explanatory memorandum ,the original error 
	//	code and anything in favour of location problem.
	virtual ErrorCodeEnum GetLastErr(DevErrorInfo &devErrInfo) = 0;
};

DEVICEBASE_API ErrorCodeEnum  CreateDevComponent(DeviceBaseClass*& baseObj);
DEVICEBASE_API ErrorCodeEnum  ReleaseDevComponent(DeviceBaseClass*& pBaseObj);

#ifdef __cplusplus
}
#endif

#endif // __DEVICE_BASE_CLASS_H