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#include "request_recipient.h"
namespace Ion {
namespace USB {
namespace Device {
bool RequestRecipient::processSetupRequest(SetupPacket * request, uint8_t * transferBuffer, uint16_t * transferBufferLength, uint16_t transferBufferMaxLength) {
if (request->followingTransaction() == SetupPacket::TransactionType::InTransaction) {
// There is no data stage in this transaction, or the data stage will be in IN direction.
if (!processSetupInRequest(request, transferBuffer, transferBufferLength, transferBufferMaxLength)) {
m_ep0->stallTransaction();
return false;
}
if (*transferBufferLength > 0) {
m_ep0->computeZeroLengthPacketNeeded();
m_ep0->sendSomeData();
} else {
m_ep0->sendSomeData();
// On seeing a zero length packet, sendSomeData changed endpoint0 state to
// LastDataIn, but it should be StatusIn as there was no data stage.
m_ep0->setState(Endpoint0::State::StatusIn);
}
} else {
// The following transaction will be an OUT transaction.
m_ep0->clearForOutTransactions(request->wLength());
}
return true;
}
}
}
}
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