393 lines
9.9 KiB
Python
393 lines
9.9 KiB
Python
import subprocess
|
|
|
|
from migen.fhdl.std import *
|
|
|
|
from lib.sata.std import *
|
|
from lib.sata.transport.std import *
|
|
|
|
from lib.sata.test.common import *
|
|
|
|
class PHYDword:
|
|
def __init__(self, dat=0):
|
|
self.dat = dat
|
|
self.start = 1
|
|
self.done = 0
|
|
|
|
class PHYSource(Module):
|
|
def __init__(self):
|
|
self.source = Source(phy_layout(32))
|
|
###
|
|
self.dword = PHYDword()
|
|
|
|
def send(self, dword):
|
|
self.dword = dword
|
|
|
|
def do_simulation(self, selfp):
|
|
selfp.source.stb = 1
|
|
selfp.source.charisk = 0b0000
|
|
for k, v in primitives.items():
|
|
if v == self.dword.dat:
|
|
selfp.source.charisk = 0b0001
|
|
selfp.source.data = self.dword.dat
|
|
|
|
class PHYSink(Module):
|
|
def __init__(self):
|
|
self.sink = Sink(phy_layout(32))
|
|
###
|
|
self.dword = PHYDword()
|
|
|
|
def receive(self):
|
|
self.dword.done = 0
|
|
while self.dword.done == 0:
|
|
yield
|
|
|
|
def do_simulation(self, selfp):
|
|
self.dword.done = 0
|
|
selfp.sink.ack = 1
|
|
if selfp.sink.stb == 1:
|
|
self.dword.done = 1
|
|
self.dword.dat = selfp.sink.data
|
|
|
|
class PHYLayer(Module):
|
|
def __init__(self, debug=False):
|
|
self.debug = debug
|
|
|
|
self.submodules.rx = PHYSink()
|
|
self.submodules.tx = PHYSource()
|
|
|
|
self.source = self.tx.source
|
|
self.sink = self.rx.sink
|
|
|
|
def send(self, dword):
|
|
packet = PHYDword(dword)
|
|
self.tx.send(packet)
|
|
|
|
def receive(self):
|
|
if self.debug:
|
|
print(self)
|
|
yield from self.rx.receive()
|
|
|
|
def __repr__(self):
|
|
receiving = "%08x " %self.rx.dword.dat
|
|
receiving += decode_primitive(self.rx.dword.dat)
|
|
receiving += " "*(16-len(receiving))
|
|
|
|
sending = "%08x " %self.tx.dword.dat
|
|
sending += decode_primitive(self.tx.dword.dat)
|
|
sending += " "*(16-len(sending))
|
|
|
|
return receiving + sending
|
|
|
|
def import_scrambler_datas():
|
|
with subprocess.Popen(["./scrambler"], stdin=subprocess.PIPE, stdout=subprocess.PIPE) as process:
|
|
process.stdin.write("0x10000".encode("ASCII"))
|
|
out, err = process.communicate()
|
|
return [int(e, 16) for e in out.decode("utf-8").split("\n")[:-1]]
|
|
|
|
class LinkPacket(list):
|
|
def __init__(self, init=[]):
|
|
self.ongoing = False
|
|
self.done = False
|
|
self.scrambled_datas = import_scrambler_datas()
|
|
for dword in init:
|
|
self.append(dword)
|
|
|
|
class LinkRXPacket(LinkPacket):
|
|
def decode(self):
|
|
self.descramble()
|
|
return self.check_crc()
|
|
|
|
def descramble(self):
|
|
for i in range(len(self)):
|
|
self[i] = self[i] ^ self.scrambled_datas[i]
|
|
|
|
def check_crc(self):
|
|
stdin = ""
|
|
for v in self[:-1]:
|
|
stdin += "0x%08x " %v
|
|
stdin += "exit"
|
|
with subprocess.Popen("./crc", stdin=subprocess.PIPE, stdout=subprocess.PIPE) as process:
|
|
process.stdin.write(stdin.encode("ASCII"))
|
|
out, err = process.communicate()
|
|
crc = int(out.decode("ASCII"), 16)
|
|
r = (self[-1] == crc)
|
|
self.pop()
|
|
return r
|
|
|
|
class LinkTXPacket(LinkPacket):
|
|
def encode(self):
|
|
self.insert_crc()
|
|
self.scramble()
|
|
|
|
def scramble(self):
|
|
for i in range(len(self)):
|
|
self[i] = self[i] ^ self.scrambled_datas[i]
|
|
|
|
def insert_crc(self):
|
|
stdin = ""
|
|
for v in self:
|
|
stdin += "0x%08x " %v
|
|
stdin += "exit"
|
|
with subprocess.Popen("./crc", stdin=subprocess.PIPE, stdout=subprocess.PIPE) as process:
|
|
process.stdin.write(stdin.encode("ASCII"))
|
|
out, err = process.communicate()
|
|
crc = int(out.decode("ASCII"), 16)
|
|
self.append(crc)
|
|
|
|
class LinkLayer(Module):
|
|
def __init__(self, phy, debug=False, random_level=0):
|
|
self.phy = phy
|
|
self.debug = debug
|
|
self.random_level = random_level
|
|
self.tx_packets = []
|
|
self.tx_packet = LinkTXPacket()
|
|
self.rx_packet = LinkRXPacket()
|
|
|
|
self.rx_cont = False
|
|
self.rx_last = 0
|
|
self.tx_cont = False
|
|
self.tx_cont_nb = -1
|
|
self.tx_lasts = [0, 0, 0]
|
|
|
|
self.scrambled_datas = import_scrambler_datas()
|
|
|
|
self.transport_callback = None
|
|
|
|
self.send_state = ""
|
|
self.send_states = ["RDY", "SOF", "DATA", "EOF", "WTRM"]
|
|
|
|
def set_transport_callback(self, callback):
|
|
self.transport_callback = callback
|
|
|
|
def remove_cont(self, dword):
|
|
if dword == primitives["HOLD"]:
|
|
if self.rx_cont:
|
|
self.tx_lasts = [0, 0, 0]
|
|
if dword == primitives["CONT"]:
|
|
self.rx_cont = True
|
|
elif is_primitive(dword):
|
|
self.rx_last = dword
|
|
self.rx_cont = False
|
|
if self.rx_cont:
|
|
dword = self.rx_last
|
|
return dword
|
|
|
|
def callback(self, dword):
|
|
if dword == primitives["X_RDY"]:
|
|
self.phy.send(primitives["R_RDY"])
|
|
elif dword == primitives["WTRM"]:
|
|
self.phy.send(primitives["R_OK"])
|
|
if self.rx_packet.ongoing:
|
|
self.rx_packet.decode()
|
|
if self.transport_callback is not None:
|
|
self.transport_callback(self.rx_packet)
|
|
self.rx_packet.ongoing = False
|
|
elif dword == primitives["HOLD"]:
|
|
self.phy.send(primitives["HOLDA"])
|
|
elif dword == primitives["EOF"]:
|
|
pass
|
|
elif self.rx_packet.ongoing:
|
|
if dword != primitives["HOLD"]:
|
|
n = randn(100)
|
|
if n < self.random_level:
|
|
self.phy.send(primitives["HOLD"])
|
|
else:
|
|
self.phy.send(primitives["R_IP"])
|
|
if not is_primitive(dword):
|
|
self.rx_packet.append(dword)
|
|
elif dword == primitives["SOF"]:
|
|
self.rx_packet = LinkRXPacket()
|
|
self.rx_packet.ongoing = True
|
|
|
|
def send(self, dword):
|
|
if self.send_state == "RDY":
|
|
self.phy.send(primitives["X_RDY"])
|
|
if dword == primitives["R_RDY"]:
|
|
self.send_state = "SOF"
|
|
elif self.send_state == "SOF":
|
|
self.phy.send(primitives["SOF"])
|
|
self.send_state = "DATA"
|
|
elif self.send_state == "DATA":
|
|
if dword == primitives["HOLD"]:
|
|
self.phy.send(primitives["HOLDA"])
|
|
else:
|
|
self.phy.send(self.tx_packet.pop(0))
|
|
if len(self.tx_packet) == 0:
|
|
self.send_state = "EOF"
|
|
elif self.send_state == "EOF":
|
|
self.phy.send(primitives["EOF"])
|
|
self.send_state = "WTRM"
|
|
elif self.send_state == "WTRM":
|
|
self.phy.send(primitives["WTRM"])
|
|
if dword == primitives["R_OK"]:
|
|
self.tx_packet.done = True
|
|
elif dword == primitives["R_ERR"]:
|
|
self.tx_packet.done = True
|
|
|
|
def insert_cont(self):
|
|
self.tx_lasts.pop(0)
|
|
self.tx_lasts.append(self.phy.tx.dword.dat)
|
|
self.tx_cont = True
|
|
for i in range(3):
|
|
if not is_primitive(self.tx_lasts[i]):
|
|
self.tx_cont = False
|
|
if self.tx_lasts[i] != self.tx_lasts[0]:
|
|
self.tx_cont = False
|
|
if self.tx_cont:
|
|
if self.tx_cont_nb == 0:
|
|
self.phy.send(primitives["CONT"])
|
|
else:
|
|
self.phy.send(self.scrambled_datas[self.tx_cont_nb])
|
|
self.tx_cont_nb += 1
|
|
else:
|
|
self.tx_cont_nb = 0
|
|
|
|
def gen_simulation(self, selfp):
|
|
self.tx_packet.done = True
|
|
self.phy.send(primitives["SYNC"])
|
|
while True:
|
|
yield from self.phy.receive()
|
|
self.phy.send(primitives["SYNC"])
|
|
rx_dword = self.phy.rx.dword.dat
|
|
rx_dword = self.remove_cont(rx_dword)
|
|
if len(self.tx_packets) != 0:
|
|
if self.tx_packet.done:
|
|
self.tx_packet = self.tx_packets.pop(0)
|
|
self.tx_packet.encode()
|
|
self.send_state = "RDY"
|
|
if not self.tx_packet.done:
|
|
self.send(rx_dword)
|
|
else:
|
|
self.callback(rx_dword)
|
|
self.insert_cont()
|
|
|
|
def get_field_data(field, packet):
|
|
return (packet[field.dword] >> field.offset) & (2**field.width-1)
|
|
|
|
class FIS:
|
|
def __init__(self, packet, layout):
|
|
self.packet = packet
|
|
self.layout = layout
|
|
self.decode()
|
|
|
|
def decode(self):
|
|
for k, v in self.layout.items():
|
|
setattr(self, k, get_field_data(v, self.packet))
|
|
|
|
def encode(self):
|
|
for k, v in self.layout.items():
|
|
self.packet[v.dword] |= (getattr(self, k) << v.offset)
|
|
|
|
def __repr__(self):
|
|
r = "--------\n"
|
|
for k in sorted(self.layout.keys()):
|
|
r += k + " : 0x%x" %getattr(self,k) + "\n"
|
|
return r
|
|
|
|
class FIS_REG_H2D(FIS):
|
|
def __init__(self, packet=[0]*fis_reg_h2d_cmd_len):
|
|
FIS.__init__(self, packet,fis_reg_h2d_layout)
|
|
|
|
def __repr__(self):
|
|
r = "FIS_REG_H2D\n"
|
|
r += FIS.__repr__(self)
|
|
return r
|
|
|
|
class FIS_REG_D2H(FIS):
|
|
def __init__(self, packet=[0]*fis_reg_d2h_cmd_len):
|
|
FIS.__init__(self, packet,fis_reg_d2h_layout)
|
|
|
|
def __repr__(self):
|
|
r = "FIS_REG_D2H\n"
|
|
r += FIS.__repr__(self)
|
|
return r
|
|
|
|
class FIS_DMA_ACTIVATE_D2H(FIS):
|
|
def __init__(self, packet=[0]*fis_dma_activate_d2h_cmd_len):
|
|
FIS.__init__(self, packet,fis_dma_activate_d2h_layout)
|
|
|
|
def __repr__(self):
|
|
r = "FIS_DMA_ACTIVATE_D2H\n"
|
|
r += FIS.__repr__(self)
|
|
return r
|
|
|
|
class FIS_DMA_SETUP(FIS):
|
|
def __init__(self, packet=[0]*fis_dma_setup_cmd_len):
|
|
FIS.__init__(self, packet,fis_dma_setup_layout)
|
|
|
|
def __repr__(self):
|
|
r = "FIS_DMA_SETUP\n"
|
|
r += FIS.__repr__(self)
|
|
return r
|
|
|
|
class FIS_DATA(FIS):
|
|
def __init__(self, packet=[0]):
|
|
FIS.__init__(self, packet,fis_data_layout)
|
|
|
|
def __repr__(self):
|
|
r = "FIS_DATA\n"
|
|
r += FIS.__repr__(self)
|
|
for data in self.packet[1:]:
|
|
r += "%08x\n" %data
|
|
return r
|
|
|
|
class FIS_PIO_SETUP_D2H(FIS):
|
|
def __init__(self, packet=[0]*fis_pio_setup_d2h_cmd_len):
|
|
FIS.__init__(self, packet,fis_pio_setup_d2h_layout)
|
|
|
|
def __repr__(self):
|
|
r = "FIS_PIO_SETUP\n"
|
|
r += FIS.__repr__(self)
|
|
return r
|
|
|
|
class FIS_UNKNOWN(FIS):
|
|
def __init__(self, packet=[0]):
|
|
FIS.__init__(self, packet, {})
|
|
|
|
def __repr__(self):
|
|
r = "UNKNOWN\n"
|
|
r += "--------\n"
|
|
for dword in self.packet:
|
|
r += "%08x\n" %dword
|
|
return r
|
|
|
|
class TransportLayer(Module):
|
|
def __init__(self, link, debug=False, loopback=False):
|
|
self.link = link
|
|
self.debug = debug
|
|
self.loopback = loopback
|
|
self.link.set_transport_callback(self.callback)
|
|
|
|
def callback(self, packet):
|
|
fis_type = packet[0]
|
|
if fis_type == fis_types["REG_H2D"]:
|
|
fis = FIS_REG_H2D(packet)
|
|
elif fis_type == fis_types["REG_D2H"]:
|
|
fis = FIS_REG_D2H(packet)
|
|
elif fis_type == fis_types["DMA_ACTIVATE_D2H"]:
|
|
fis = FIS_DMA_ACTIVATE_D2H(packet)
|
|
elif fis_type == fis_types["DMA_SETUP"]:
|
|
fis = FIS_DMA_SETUP(packet)
|
|
elif fis_type == fis_types["DATA"]:
|
|
fis = FIS_DATA(packet)
|
|
elif fis_type == fis_types["PIO_SETUP_D2H"]:
|
|
fis = FIS_PIO_SETUP_D2H(packet)
|
|
else:
|
|
fis = FIS_UNKNOWN(packet)
|
|
if self.debug:
|
|
print(fis)
|
|
if self.loopback:
|
|
packet = LinkTXPacket(fis.packet)
|
|
self.link.tx_packets.append(packet)
|
|
|
|
class BFM(Module):
|
|
def __init__(self,
|
|
phy_debug=False,
|
|
link_debug=False, link_random_level=0,
|
|
transport_debug=False, transport_loopback=False
|
|
):
|
|
###
|
|
self.submodules.phy = PHYLayer(phy_debug)
|
|
self.submodules.link = LinkLayer(self.phy, link_debug, link_random_level)
|
|
self.submodules.transport = TransportLayer(self.link, transport_debug, transport_loopback)
|