self.data = data
def __repr__(self):
- return "Write data : {}".format(self.data)
-
+ return "WR32 0x{:08x}".format(self.data)
class EtherboneRead:
def __init__(self, addr):
self.addr = addr
def __repr__(self):
- return "Read addr : {}".format(self.addr)
+ return "RD32 @ 0x{:08x}".format(self.addr)
class EtherboneWrites(Packet):
def __init__(self, init=[], base_addr=0):
Packet.__init__(self, init)
self.base_addr = base_addr
self.writes = []
+ self.encoded = init != []
def add(self, write):
self.writes.append(write)
def encode(self):
+ if self.encoded:
+ raise ValueError
for byte in split_bytes(self.base_addr, 4):
self.append(byte)
for write in self.writes:
for byte in split_bytes(write.data, 4):
self.append(byte)
+ self.encoded = True
def decode(self):
+ if not self.encoded:
+ raise ValueError
base_addr = []
for i in range(4):
base_addr.append(self.pop(0))
for i in range(4):
write.append(self.pop(0))
self.writes.append(EtherboneWrite(merge_bytes(write)))
+ self.encoded = False
+
+ def __repr__(self):
+ r = "Writes\n"
+ r += "--------\n"
+ r += "BaseAddr @ 0x{:08x}\n".format(self.base_addr)
+ for write in self.writes:
+ r += write.__repr__() + "\n"
+ return r
class EtherboneReads(Packet):
def __init__(self, init=[], base_ret_addr=0):
Packet.__init__(self, init)
self.base_ret_addr = base_ret_addr
self.reads = []
+ self.encoded = init != []
def add(self, read):
self.reads.append(read)
def encode(self):
+ if self.encoded:
+ raise ValueError
for byte in split_bytes(self.base_ret_addr, 4):
self.append(byte)
for read in self.reads:
for byte in split_bytes(read.addr, 4):
self.append(byte)
+ self.encoded = True
def decode(self):
+ if not self.encoded:
+ raise ValueError
base_ret_addr = []
for i in range(4):
base_ret_addr.append(self.pop(0))
for i in range(4):
read.append(self.pop(0))
self.reads.append(EtherboneRead(merge_bytes(read)))
+ self.encoded = False
+
+ def __repr__(self):
+ r = "Reads\n"
+ r += "--------\n"
+ r += "BaseRetAddr @ 0x{:08x}\n".format(self.base_ret_addr)
+ for read in self.reads:
+ r += read.__repr__() + "\n"
+ return r
class EtherboneRecord(Packet):
def __init__(self, init=[]):
Packet.__init__(self, init)
self.writes = None
self.reads = None
+ self.encoded = init != []
def get_writes(self):
if self.wcount == 0:
return EtherboneReads(reads)
def decode(self):
+ if not self.encoded:
+ raise ValueError
header = []
for byte in self[:etherbone_record_header_len]:
header.append(self.pop(0))
for k, v in sorted(etherbone_record_header.items()):
setattr(self, k, get_field_data(v, header))
+ self.writes = self.get_writes()
+ self.writes.decode()
+ self.reads = self.get_reads()
+ self.reads.decode()
+ self.encoded = False
def set_writes(self, writes):
- self.writes = writes
+ self.wcount = len(writes.writes)
writes.encode()
for byte in writes:
self.append(byte)
- self.wcount = len(writes)-4
def set_reads(self, reads):
- self.reads = reads
+ self.rcount = len(reads.reads)
reads.encode()
for byte in reads:
self.append(byte)
- self.rcount = len(reads)-4
def encode(self):
+ if self.encoded:
+ raise ValueError
+ self.set_writes(self.writes)
+ self.set_reads(self.reads)
header = 0
for k, v in sorted(etherbone_record_header.items()):
value = merge_bytes(split_bytes(getattr(self, k), math.ceil(v.width/8)), "little")
header += (value << v.offset+(v.byte*8))
for d in split_bytes(header, etherbone_record_header_len):
self.insert(0, d)
-
- def __repr__(self):
- r = "--------\n"
- for k in sorted(etherbone_record_header.keys()):
- r += k + " : 0x%x" %getattr(self,k) + "\n"
- r += "payload: "
- for d in self:
- r += "%02x" %d
+ self.encoded = True
+
+ def __repr__(self, n=0):
+ r = "Record {}\n".format(n)
+ r += "--------\n"
+ if self.encoded:
+ for d in self:
+ r += "{:02x}".format(d)
+ else:
+ for k in sorted(etherbone_record_header.keys()):
+ r += k + " : 0x{:0x}\n".format(getattr(self,k))
+ if self.wcount != 0:
+ r += self.writes.__repr__()
+ if self.rcount != 0:
+ r += self.reads.__repr__()
return r
class EtherbonePacket(Packet):
def __init__(self, init=[]):
Packet.__init__(self, init)
+ self.encoded = init != []
+ self.records = []
def get_records(self):
records = []
record = EtherboneRecord(payload)
record.decode()
records.append(copy.deepcopy(record))
- writes = record.get_writes()
- reads = record.get_reads()
payload = record
return records
def decode(self):
+ if not self.encoded:
+ raise ValueError
header = []
for byte in self[:etherbone_header_len]:
header.append(self.pop(0))
for k, v in sorted(etherbone_header.items()):
setattr(self, k, get_field_data(v, header))
+ self.records = self.get_records()
+ self.encoded = False
def set_records(self, records):
- self.records = records
for record in records:
+ record.encode()
for byte in record:
self.append(byte)
def encode(self):
+ if self.encoded:
+ raise ValueError
+ self.set_records(self.records)
header = 0
for k, v in sorted(etherbone_header.items()):
value = merge_bytes(split_bytes(getattr(self, k), math.ceil(v.width/8)), "little")
header += (value << v.offset+(v.byte*8))
for d in split_bytes(header, etherbone_header_len):
self.insert(0, d)
+ self.encoded = True
def __repr__(self):
- r = "--------\n"
- for k in sorted(etherbone_header.keys()):
- r += k + " : 0x%x" %getattr(self,k) + "\n"
- r += "payload: "
- for d in self:
- r += "%02x" %d
+ r = "Packet\n"
+ r += "--------\n"
+ if self.encoded:
+ for d in self:
+ r += "{:02x}".format(d)
+ else:
+ for k in sorted(etherbone_header.keys()):
+ r += k + " : 0x{:0x}\n".format(getattr(self,k))
+ for i, record in enumerate(self.records):
+ r += record.__repr__(i)
return r
class Etherbone(Module):
# Record
record = EtherboneRecord()
- record.set_writes(writes)
- record.set_reads(reads)
+ record.writes = writes
+ record.reads = reads
record.bca = 0
record.rca = 0
record.rff = 0
record.byte_enable = 0
record.wcount = 16
record.rcount = 16
- record.encode()
# Packet
packet = EtherbonePacket()
- packet.set_records([record for i in range(8)])
+ packet.records = [copy.deepcopy(record) for i in range(8)]
packet.magic = etherbone_magic
packet.version = etherbone_version
packet.nr = 0
packet.port_size = 32//8
#print(packet)
packet.encode()
+ #print(packet)
# Send packet over UDP to check against Wireshark dissector
import socket
packet = EtherbonePacket(packet)
packet.decode()
- #print(packet)
-
- # Record
- records = packet.get_records()
- for record in records:
- writes = record.get_writes()
- writes.decode()
- print(writes.base_addr)
- for e in writes.writes:
- print(e)
- reads = record.get_reads()
- reads.decode()
- print(reads.base_ret_addr)
- for e in reads.reads:
- print(e)
+ print(packet)
projects / litex.git / commitdiff