boolean SMSC951xDeviceReceiveFrame (TSMSC951xDevice *pThis, void *pBuffer, unsigned *pResultLength)
{
assert (pThis != 0);
assert (pThis->m_pEndpointBulkIn != 0);
assert (pBuffer != 0);
TUSBRequest URB;
USBRequest (&URB, pThis->m_pEndpointBulkIn, pBuffer, FRAME_BUFFER_SIZE, 0);
if (!DWHCIDeviceSubmitBlockingRequest (USBDeviceGetHost (&pThis->m_USBDevice), &URB))
{
_USBRequest (&URB);
return FALSE;
}
u32 nResultLength = USBRequestGetResultLength (&URB);
if (nResultLength < 4) // should not happen with HW_CFG_BIR set
{
_USBRequest (&URB);
return FALSE;
}
u32 nRxStatus = *(u32 *) pBuffer;
if (nRxStatus & RX_STS_ERROR)
{
LogWrite (FromSMSC951x, LOG_WARNING, "RX error (status 0x%X)", nRxStatus);
_USBRequest (&URB);
return FALSE;
}
u32 nFrameLength = RX_STS_FRAMELEN (nRxStatus);
assert (nFrameLength == nResultLength-4);
assert (nFrameLength > 4);
if (nFrameLength <= 4)
{
_USBRequest (&URB);
return FALSE;
}
nFrameLength -= 4; // ignore CRC
//LogWrite (FromSMSC951x, LOG_DEBUG, "Frame received (status 0x%X)", nRxStatus);
memcpy (pBuffer, (u8 *) pBuffer + 4, nFrameLength); // overwrite RX status
assert (pResultLength != 0);
*pResultLength = nFrameLength;
_USBRequest (&URB);
return TRUE;
}
void USBKeyboardDeviceCompletionRoutine (TUSBRequest *pURB, void *pParam, void *pContext)
{
TUSBKeyboardDevice *pThis = (TUSBKeyboardDevice *) pContext;
assert (pThis != 0);
assert (pURB != 0);
assert (pThis->m_pURB == pURB);
if ( USBRequestGetStatus (pURB) != 0
&& USBRequestGetResultLength (pURB) == BOOT_REPORT_SIZE)
{
if (pThis->m_pKeyStatusHandlerRaw != 0)
{
(*pThis->m_pKeyStatusHandlerRaw) (USBKeyboardDeviceGetModifiers (pThis), pThis->m_pReportBuffer+2);
}
else
{
u8 ucPhyCode = USBKeyboardDeviceGetKeyCode (pThis);
if (ucPhyCode == pThis->m_ucLastPhyCode)
{
ucPhyCode = 0;
}
else
{
pThis->m_ucLastPhyCode = ucPhyCode;
}
if (ucPhyCode != 0)
{
USBKeyboardDeviceGenerateKeyEvent (pThis, ucPhyCode);
#ifdef REPEAT_ENABLE
if (pThis->m_hTimer != 0)
{
CancelKernelTimer (pThis->m_hTimer);
}
pThis->m_hTimer = StartKernelTimer (REPEAT_DELAY, USBKeyboardDeviceTimerHandler, 0, pThis);
assert (pThis->m_hTimer != 0);
#endif
}
else if (pThis->m_hTimer != 0)
{
CancelKernelTimer (pThis->m_hTimer);
pThis->m_hTimer = 0;
}
}
}
_USBRequest (pThis->m_pURB);
free (pThis->m_pURB);
pThis->m_pURB = 0;
USBKeyboardDeviceStartRequest (pThis);
}
