sl@0: //
StephaneLenclud@35: // Copyright (C) 2014-2015 Stéphane Lenclud.
sl@0: //
StephaneLenclud@35: // This file is part of MiniDisplay.
StephaneLenclud@35: //
StephaneLenclud@35: // MiniDisplay is free software: you can redistribute it and/or modify
StephaneLenclud@35: // it under the terms of the GNU General Public License as published by
StephaneLenclud@35: // the Free Software Foundation, either version 3 of the License, or
StephaneLenclud@35: // (at your option) any later version.
StephaneLenclud@35: //
StephaneLenclud@35: // MiniDisplay is distributed in the hope that it will be useful,
StephaneLenclud@35: // but WITHOUT ANY WARRANTY; without even the implied warranty of
StephaneLenclud@35: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
StephaneLenclud@35: // GNU General Public License for more details.
StephaneLenclud@35: //
StephaneLenclud@35: // You should have received a copy of the GNU General Public License
StephaneLenclud@35: // along with MiniDisplay.  If not, see <http://www.gnu.org/licenses/>.
sl@0: //
sl@0: 
sl@0: #include "HidDevice.h"
sl@0: 
sl@0: //
sl@0: // class HidDevice
sl@0: //
sl@0: 
sl@0: HidDevice::HidDevice():iHidDevice(NULL)
sl@0:     {
sl@0:     Close();
sl@0:     }
sl@0: 
sl@0: /**
sl@0: */
sl@7: HidDevice::~HidDevice()
sl@7: 	{
sl@7: 	Close();
sl@7: 	}
sl@7: 
sl@7: 
sl@7: /**
sl@7: */
sl@0: int HidDevice::Open(const char* aPath)
sl@0: 	{
sl@0: 	Close();
sl@0: 
sl@0: 	iHidDevice =  hid_open_path(aPath);
sl@0: 
sl@0: 	if (!iHidDevice)
sl@0: 		{
sl@0: 		//Fail to connect our device
sl@0: 		return 0;
sl@0: 		}
sl@0: 
sl@0:     FetchStrings();
sl@0: 
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: See hidapi documentation.
sl@0: */
sl@0: int HidDevice::Open(unsigned short aVendorId, unsigned short aProductId, const wchar_t* aSerialNumber)
sl@0: 	{
sl@0:     Close();
sl@0: 
sl@0: 	iHidDevice = hid_open(aVendorId, aProductId, aSerialNumber);
sl@0: 
sl@0: 	if (!iHidDevice)
sl@0: 		{
sl@0: 		//Fail to connect our device
sl@0: 		return 0;
sl@0: 		}
sl@0: 
sl@0:     FetchStrings();
sl@0: 
sl@0: 	return 1;
sl@0: 	}
sl@0: 
sl@0: /**
sl@7: Close this HID device
sl@0: */
sl@0: void HidDevice::Close()
sl@0: 	{
sl@7: 	hid_close(iHidDevice); //No effect if device is null
sl@0: 	iHidDevice=NULL;
sl@0:     //
sl@0:     memset(iVendor,0,sizeof(iVendor));
sl@0:     memset(iProduct,0,sizeof(iProduct));
sl@0:     memset(iSerialNumber,0,sizeof(iSerialNumber));
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: */
sl@0: bool HidDevice::IsOpen()
sl@0:     {
sl@0:     return iHidDevice!=NULL;
sl@0:     }
sl@0: 
sl@0: 
sl@0: /**
sl@0: */
sl@0: const wchar_t* HidDevice::Error()
sl@0: 	{
sl@0: 	return hid_error(iHidDevice);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: */
sl@0: int HidDevice::SetNonBlocking(int aNonBlocking)
sl@0: 	{
sl@0: 	//Success we are now connected to our HID device
sl@0: 	//Set read operation as non blocking
sl@0: 	return hid_set_nonblocking(iHidDevice, aNonBlocking);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: */
sl@0: wchar_t* HidDevice::Vendor()
sl@0:     {
sl@0:     return iVendor;
sl@0:     }
sl@0: 
sl@0: /**
sl@0: */
sl@0: wchar_t* HidDevice::Product()
sl@0:     {
sl@0:     return iProduct;
sl@0:     }
sl@0: 
sl@0: /**
sl@0: */
sl@0: wchar_t* HidDevice::SerialNumber()
sl@0:     {
sl@0:     return iSerialNumber;
sl@0:     }
sl@0: 
sl@0: /**
sl@0: 
sl@0: */
sl@0: void HidDevice::FetchStrings()
sl@0:     {
sl@0:     hid_get_manufacturer_string(iHidDevice,iVendor,sizeof(iVendor));
sl@0:     hid_get_product_string(iHidDevice,iProduct,sizeof(iProduct));
sl@0:     hid_get_serial_number_string(iHidDevice,iSerialNumber,sizeof(iSerialNumber));
sl@0:     }