Append OUT data only if it has been ACKed. OUT transfers (BULK OUT or
CONTROL transfer DATA stage) are typically NACKed to create backpressure.
Always keep IN and OUT transfers separate. On the physical layer, the
endpoint number only uses 4 bits, and IN and OUT use separate tokens.
In case the transfer is an IN transfer, set the high bit as used in the
endpoint descriptors (i.e. 0x81 is IN enpoint 1, 0x01 is OUT endpoint 1).
self.handle_request(request_started, request_end)
elif request['type'] in (None, 'BULK OUT') and self.transaction_type == 'OUT':
request['type'] = 'BULK OUT'
self.handle_request(request_started, request_end)
elif request['type'] in (None, 'BULK OUT') and self.transaction_type == 'OUT':
request['type'] = 'BULK OUT'
- request['data'] += self.transaction_data
+ if self.handshake == 'ACK':
+ request['data'] += self.transaction_data
self.handle_request(request_started, request_end)
# CONTROL, SETUP stage
self.handle_request(request_started, request_end)
# CONTROL, SETUP stage
request['data'] += self.transaction_data
elif request['type'] == 'SETUP OUT' and self.transaction_type == 'OUT':
request['data'] += self.transaction_data
elif request['type'] == 'SETUP OUT' and self.transaction_type == 'OUT':
- request['data'] += self.transaction_data
+ if self.handshake == 'ACK':
+ request['data'] += self.transaction_data
if request['wLength'] == len(request['data']):
self.handle_request(1, 0)
if request['wLength'] == len(request['data']):
self.handle_request(1, 0)
self.es_transaction = es
self.transaction_state = 'TOKEN RECEIVED'
self.transaction_ep = ep
self.es_transaction = es
self.transaction_state = 'TOKEN RECEIVED'
self.transaction_ep = ep
+ if ep > 0 and pname == 'IN':
+ self.transaction_ep = ep + 0x80
self.transaction_addr = addr
self.transaction_type = pname # IN OUT SETUP
self.transaction_addr = addr
self.transaction_type = pname # IN OUT SETUP