#include "UsbEndpoint.h"
#include <errno.h>
#include <sys/select.h>
extern int errno;

UsbEndPoint::UsbEndPoint(EndpointType eptype):m_fd(-1)
{
    m_endpointtype=eptype;
}

UsbEndPoint::~UsbEndPoint()
{
    if(m_fd)
    {
        ::close(m_fd);
        LOG("try close %s \n",map_endpoints[m_endpointtype].c_str());
    }
}

int UsbEndPoint::open()
{
  int ret=(int)HGUSB_ErrorCode::HG_USBSuccess;
  if(m_endpointtype!=EndpointType::EP_Undefine)
  {
    LOG("try open %s \n",map_endpoints[m_endpointtype].c_str());
    m_fd = ::open(map_endpoints[m_endpointtype].c_str(),O_RDWR);
    if(m_fd ==-1)
    {
       ret=(int)HGUSB_ErrorCode::HG_USBOpenFailed;
       LOG("try open %s  fialed errorcode %d \n",map_endpoints[m_endpointtype].c_str(),errno);
    }
    else
    {
       LOG("try open %s  success \n",map_endpoints[m_endpointtype].c_str());
    }
    
  }
  return ret;
}

void UsbEndPoint::close()
{
    if(m_fd)
    {
        ::close(m_fd);
    }
}

int UsbEndPoint::read(void* pdata,int length)
{
    int ret = (int)HGUSB_ErrorCode::HG_USBSuccess;
    if(!pdata)
        return (int)HGUSB_ErrorCode::HG_USBInvalidePtr;

    if(m_fd!=-1)
    {
        //DEBUG("try reading USB %s endpoint data\n",map_endpoints[m_endpointtype].c_str());
        return ::read(m_fd,pdata,length);
    }
    return ret;
}

int UsbEndPoint::write(void* pdata,int length)
{
    int ret = 0;
    if(!pdata)
        return (int)HGUSB_ErrorCode::HG_USBInvalidePtr;
        
    if(m_fd!=-1)
    {
        //DEBUG("try writing USB %s endpoint data\n",map_endpoints[m_endpointtype].c_str());
        return ::write(m_fd,pdata,length);
    }
    return ret;
}

int UsbEndPoint::getEndpointType()
{
    return (int)m_endpointtype;
}

bool UsbEndPoint::is_open()
{
    return m_fd != -1;
}