EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t *data, uint32_t *bytesRead) {
uint8_t bf = 0;
if (!(epComplete & EP(endpoint)))
return EP_PENDING;
else {
epComplete &= ~EP(endpoint);
//check which buffer has been filled
if (LPC_USB->EPBUFCFG & EP(endpoint)) {
// Double buffered (here we read the previous buffer which was used)
if (LPC_USB->EPINUSE & EP(endpoint)) {
bf = 0;
} else {
bf = 1;
}
}
// Find how many bytes were read
*bytesRead = (uint32_t) (endpointState[endpoint].maxPacket - BYTES_REMAINING(ep[PHY_TO_LOG(endpoint)].out[bf]));
// Copy data
USBMemCopy(data, ct->out, *bytesRead);
return EP_COMPLETED;
}
}
uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
// Complete an endpoint 0 read
uint32_t bytesRead;
// Find how many bytes were read
bytesRead = MAX_PACKET_SIZE_EP0 - BYTES_REMAINING(ep[0].out[0]);
// Copy data
USBMemCopy(buffer, ct->out, bytesRead);
return bytesRead;
}
DWORD
LWNetReadGUID(
OUT PBYTE pbtDest,
IN PACKED_ARRAY* pArray
)
{
DWORD dwError = 0;
if (BYTES_REMAINING((*pArray)) < LWNET_GUID_SIZE)
{
dwError = DNS_ERROR_BAD_PACKET;
BAIL_ON_LWNET_ERROR(dwError);
}
memcpy(pbtDest, pArray->pCur, LWNET_GUID_SIZE);
pArray->pCur += LWNET_GUID_SIZE;
error:
return dwError;
}