C++ (Cpp) EP0 Examples

Example #1

File: fdm_hmac.c Project: CreatorKit/device-manager

static void Sha256_Transform(Sha256ContextType *context, uint8_t * data)
{
    uint32_t a,b,c,d,e,f,g,h,i,j,t1,t2,m[64];

    for (i = 0, j = 0; i < 16; ++i, j += 4)
    {
        m[i] = (data[j] << 24) | (data[j+1] << 16) | (data[j+2] << 8) | (data[j+3]);
    }

    for (; i < 64; i++)
    {
        m[i] = SIG1(m[i-2]) + m[i-7] + SIG0(m[i-15]) + m[i-16];
    }

    a = context->State[0];
    b = context->State[1];
    c = context->State[2];
    d = context->State[3];
    e = context->State[4];
    f = context->State[5];
    g = context->State[6];
    h = context->State[7];

    for (i = 0; i < 64; i++)
    {
        t1 = h + EP1(e) + CH(e,f,g) + k[i] + m[i];
        t2 = EP0(a) + MAJ(a,b,c);
        h = g;
        g = f;
        f = e;
        e = d + t1;
        d = c;
        c = b;
        b = a;
        a = t1 + t2;
    }

    context->State[0] += a;
    context->State[1] += b;
    context->State[2] += c;
    context->State[3] += d;
    context->State[4] += e;
    context->State[5] += f;
    context->State[6] += g;
    context->State[7] += h;
}

Example #2

File: XHCIContext.cpp Project: prajwal83/upanix

InputContext::InputContext(bool use64, const XHCIPortRegister& port, uint32_t portId, uint32_t routeString, uint32_t trRingPtr)
{
  unsigned addr = KERNEL_VIRTUAL_ADDRESS(MemManager::Instance().AllocatePhysicalPage() * PAGE_SIZE);
  if(use64)
  {
    auto context64 = new ((void*)addr)InputContext64();
    _control = &context64->_controlContext;
    _devContext = new DeviceContext(context64->_deviceContext);
  }
  else
  {
    auto context32 = new ((void*)addr)InputContext32();
    _control = &context32->_controlContext;
    _devContext = new DeviceContext(context32->_deviceContext);
  }
  Slot().Init(portId, routeString, port.PortSpeedID());
  EP0().EP0Init(trRingPtr, port.MaxPacketSize());
}