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//HW interface to phyiscal bus device
#ifndef SM_BUSDEVICE
#define SM_BUSDEVICE
#include "simplemotion.h"
#include "simplemotion_private.h"
typedef smint16 smbusdevicehandle;
#define SM_BAUDRATE 460800
//ie "COM1" "VSD2USB"
//return 0-1 if fails, otherwise handle number
smbusdevicehandle smBDOpen( const char *devicename );
//return true if ok
smbool smBDClose( const smbusdevicehandle handle );
//write one byte to trasmit buffer. send data with smBDTransmit()
//returns smtrue on success. smfalse could mean buffer full error if forgot to call smBDTransmit
smbool smBDWrite( const smbusdevicehandle handle , const smuint8 byte );
//write transmit buffer to physical device
//returns true on success
smbool smBDTransmit(const smbusdevicehandle handle);
//read one byte from bus. if byte not immediately available, block return up to SM_READ_TIMEOUT millisecs to wait data
//returns true if byte read sucessfully
smbool smBDRead( const smbusdevicehandle handle , smuint8 *byte );
//BUS DEVICE INFO FETCH FUNCTIONS:
// Return number of bus devices found. details of each device may be consequently fetched by smBDGetBusDeviceDetails()
smint smBDGetNumberOfDetectedBuses();
//return smtrue if success
smbool smBDGetBusDeviceDetails( smint index, SM_BUS_DEVICE_INFO *info );
#endif
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