mirror of https://github.com/m-labs/artiq
405 lines
15 KiB
Python
405 lines
15 KiB
Python
from operator import itemgetter
|
|
from collections import namedtuple
|
|
from itertools import count
|
|
import struct
|
|
import logging
|
|
|
|
from artiq.protocols.analyzer import MessageType, ExceptionType
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
OutputMessage = namedtuple(
|
|
"OutputMessage", "channel timestamp rtio_counter address data")
|
|
|
|
InputMessage = namedtuple(
|
|
"InputMessage", "channel timestamp rtio_counter data")
|
|
|
|
ExceptionMessage = namedtuple(
|
|
"ExceptionMessage", "channel rtio_counter exception_type")
|
|
|
|
StoppedMessage = namedtuple(
|
|
"StoppedMessage", "rtio_counter")
|
|
|
|
|
|
def decode_message(data):
|
|
message_type_channel = struct.unpack(">I", data[28:32])[0]
|
|
message_type = MessageType(message_type_channel & 0b11)
|
|
channel = message_type_channel >> 2
|
|
|
|
if message_type == MessageType.output:
|
|
parts = struct.unpack(">QIQQ", data[:28])
|
|
data, address, rtio_counter, timestamp = parts
|
|
return OutputMessage(channel, timestamp, rtio_counter, address, data)
|
|
elif message_type == MessageType.input:
|
|
parts = struct.unpack(">QIQQ", data[:28])
|
|
data, _, rtio_counter, timestamp = parts
|
|
return InputMessage(channel, timestamp, rtio_counter, data)
|
|
elif message_type == MessageType.exception:
|
|
exception_type, rtio_counter = struct.unpack(">BQ", data[11:20])
|
|
return ExceptionMessage(channel, rtio_counter,
|
|
ExceptionType(exception_type))
|
|
elif message_type == MessageType.stopped:
|
|
rtio_counter = struct.unpack(">Q", data[12:20])[0]
|
|
return StoppedMessage(rtio_counter)
|
|
else:
|
|
raise ValueError
|
|
|
|
|
|
DecodedDump = namedtuple(
|
|
"DecodedDump", "log_channel dds_onehot_sel messages")
|
|
|
|
|
|
def decode_dump(data):
|
|
parts = struct.unpack(">IQbbb", data[:15])
|
|
(sent_bytes, total_byte_count,
|
|
overflow_occured, log_channel, dds_onehot_sel) = parts
|
|
|
|
expected_len = sent_bytes + 15
|
|
if expected_len != len(data):
|
|
raise ValueError("analyzer dump has incorrect length "
|
|
"(got {}, expected {})".format(
|
|
len(data), expected_len))
|
|
if overflow_occured:
|
|
logger.warning("analyzer FIFO overflow occured, "
|
|
"some messages have been lost")
|
|
if total_byte_count > sent_bytes:
|
|
logger.info("analyzer ring buffer has wrapped %d times",
|
|
total_byte_count//sent_bytes)
|
|
|
|
position = 15
|
|
messages = []
|
|
for _ in range(sent_bytes//32):
|
|
messages.append(decode_message(data[position:position+32]))
|
|
position += 32
|
|
return DecodedDump(log_channel, bool(dds_onehot_sel), messages)
|
|
|
|
|
|
def vcd_codes():
|
|
codechars = [chr(i) for i in range(33, 127)]
|
|
for n in count():
|
|
q, r = divmod(n, len(codechars))
|
|
code = codechars[r]
|
|
while q > 0:
|
|
q, r = divmod(q, len(codechars))
|
|
code = codechars[r] + code
|
|
yield code
|
|
|
|
|
|
class VCDChannel:
|
|
def __init__(self, out, code):
|
|
self.out = out
|
|
self.code = code
|
|
|
|
def set_value(self, value):
|
|
if len(value) > 1:
|
|
self.out.write("b" + value + " " + self.code + "\n")
|
|
else:
|
|
self.out.write(value + self.code + "\n")
|
|
|
|
def set_value_double(self, x):
|
|
integer_cast = struct.unpack(">Q", struct.pack(">d", x))[0]
|
|
self.set_value("{:064b}".format(integer_cast))
|
|
|
|
|
|
class VCDManager:
|
|
def __init__(self, fileobj):
|
|
self.out = fileobj
|
|
self.codes = vcd_codes()
|
|
self.current_time = None
|
|
|
|
def set_timescale_ps(self, timescale):
|
|
self.out.write("$timescale {}ps $end\n".format(round(timescale)))
|
|
|
|
def get_channel(self, name, width):
|
|
code = next(self.codes)
|
|
self.out.write("$var wire {width} {code} {name} $end\n"
|
|
.format(name=name, code=code, width=width))
|
|
return VCDChannel(self.out, code)
|
|
|
|
def set_time(self, time):
|
|
if time != self.current_time:
|
|
self.out.write("#{}\n".format(time))
|
|
self.current_time = time
|
|
|
|
|
|
class TTLHandler:
|
|
def __init__(self, vcd_manager, name):
|
|
self.name = name
|
|
self.channel_value = vcd_manager.get_channel("ttl/" + name, 1)
|
|
self.last_value = "X"
|
|
self.oe = True
|
|
|
|
def process_message(self, message):
|
|
if isinstance(message, OutputMessage):
|
|
logger.debug("TTL write @%d %d to %d, name: %s",
|
|
message.timestamp, message.data, message.address, self.name)
|
|
if message.address == 0:
|
|
self.last_value = str(message.data)
|
|
if self.oe:
|
|
self.channel_value.set_value(self.last_value)
|
|
elif message.address == 1:
|
|
self.oe = bool(message.data)
|
|
if self.oe:
|
|
self.channel_value.set_value(self.last_value)
|
|
else:
|
|
self.channel_value.set_value("X")
|
|
elif isinstance(message, InputMessage):
|
|
logger.debug("TTL read @%d %d, name: %s",
|
|
message.timestamp, message.data, self.name)
|
|
self.channel_value.set_value(str(message.data))
|
|
|
|
|
|
class TTLClockGenHandler:
|
|
def __init__(self, vcd_manager, name, ref_period):
|
|
self.name = name
|
|
self.ref_period = ref_period
|
|
self.channel_frequency = vcd_manager.get_channel(
|
|
"ttl_clkgen/" + name, 64)
|
|
|
|
def process_message(self, message):
|
|
if isinstance(message, OutputMessage):
|
|
logger.debug("TTL_CLKGEN write @%d %d to %d, name: %s",
|
|
message.timestamp, message.data, message.address, self.name)
|
|
frequency = message.data/self.ref_period/2**24
|
|
self.channel_frequency.set_value_double(frequency)
|
|
|
|
|
|
class DDSHandler:
|
|
def __init__(self, vcd_manager, dds_type, onehot_sel, sysclk):
|
|
self.vcd_manager = vcd_manager
|
|
self.dds_type = dds_type
|
|
self.onehot_sel = onehot_sel
|
|
self.sysclk = sysclk
|
|
|
|
self.selected_dds_channels = set()
|
|
self.dds_channels = dict()
|
|
|
|
def add_dds_channel(self, name, dds_channel_nr):
|
|
dds_channel = dict()
|
|
dds_channel["vcd_frequency"] = \
|
|
self.vcd_manager.get_channel("dds/" + name + "/frequency", 64)
|
|
dds_channel["vcd_phase"] = \
|
|
self.vcd_manager.get_channel("dds/" + name + "/phase", 64)
|
|
if self.dds_type == "AD9858":
|
|
dds_channel["ftw"] = [None, None, None, None]
|
|
dds_channel["pow"] = [None, None]
|
|
elif self.dds_type == "AD9914":
|
|
dds_channel["ftw"] = [None, None]
|
|
dds_channel["pow"] = None
|
|
self.dds_channels[dds_channel_nr] = dds_channel
|
|
|
|
def _gpio_to_channels(self, gpio):
|
|
gpio >>= 1 # strip reset
|
|
if self.onehot_sel:
|
|
r = set()
|
|
nr = 0
|
|
mask = 1
|
|
while gpio >= mask:
|
|
if gpio & mask:
|
|
r.add(nr)
|
|
nr += 1
|
|
mask *= 2
|
|
return r
|
|
else:
|
|
return {gpio}
|
|
|
|
def _decode_ad9858_write(self, message):
|
|
if message.address == 0x41:
|
|
self.selected_dds_channels = self._gpio_to_channels(message.data)
|
|
for dds_channel_nr in self.selected_dds_channels:
|
|
dds_channel = self.dds_channels[dds_channel_nr]
|
|
if message.address in range(0x0a, 0x0e):
|
|
dds_channel["ftw"][message.address - 0x0a] = message.data
|
|
elif message.address in range(0x0e, 0x10):
|
|
dds_channel["pow"][message.address - 0x0e] = message.data
|
|
elif message.address == 0x40: # FUD
|
|
if None not in dds_channel["ftw"]:
|
|
ftw = sum(x << i*8
|
|
for i, x in enumerate(dds_channel["ftw"]))
|
|
frequency = ftw*self.sysclk/2**32
|
|
dds_channel["vcd_frequency"].set_value_double(frequency)
|
|
if None not in dds_channel["pow"]:
|
|
pow = dds_channel["pow"][0] | (dds_channel["pow"][1] & 0x3f) << 8
|
|
phase = pow/2**14
|
|
dds_channel["vcd_phase"].set_value_double(phase)
|
|
|
|
def _decode_ad9914_write(self, message):
|
|
if message.address == 0x81:
|
|
self.selected_dds_channels = self._gpio_to_channels(message.data)
|
|
for dds_channel_nr in self.selected_dds_channels:
|
|
dds_channel = self.dds_channels[dds_channel_nr]
|
|
if message.address == 0x2d:
|
|
dds_channel["ftw"][0] = message.data
|
|
elif message.address == 0x2f:
|
|
dds_channel["ftw"][1] = message.data
|
|
elif message.address == 0x31:
|
|
dds_channel["pow"] = message.data
|
|
elif message.address == 0x80: # FUD
|
|
if None not in dds_channel["ftw"]:
|
|
ftw = sum(x << i*16
|
|
for i, x in enumerate(dds_channel["ftw"]))
|
|
frequency = ftw*self.sysclk/2**32
|
|
dds_channel["vcd_frequency"].set_value_double(frequency)
|
|
if dds_channel["pow"] is not None:
|
|
phase = dds_channel["pow"]/2**16
|
|
dds_channel["vcd_phase"].set_value_double(phase)
|
|
|
|
def process_message(self, message):
|
|
if isinstance(message, OutputMessage):
|
|
logger.debug("DDS write @%d 0x%04x to 0x%02x, selected channels: %s",
|
|
message.timestamp, message.data, message.address,
|
|
self.selected_dds_channels)
|
|
if self.dds_type == "AD9858":
|
|
self._decode_ad9858_write(message)
|
|
elif self.dds_type == "AD9914":
|
|
self._decode_ad9914_write(message)
|
|
|
|
|
|
def _extract_log_chars(data):
|
|
r = ""
|
|
for i in range(4):
|
|
n = data >> 24
|
|
data = (data << 8) & 0xffffffff
|
|
if not n:
|
|
continue
|
|
r += chr(n)
|
|
return r
|
|
|
|
|
|
class LogHandler:
|
|
def __init__(self, vcd_manager, vcd_log_channels):
|
|
self.vcd_channels = dict()
|
|
for name, maxlength in vcd_log_channels.items():
|
|
self.vcd_channels[name] = vcd_manager.get_channel("log/" + name,
|
|
maxlength*8)
|
|
self.current_entry = ""
|
|
|
|
def process_message(self, message):
|
|
if isinstance(message, OutputMessage):
|
|
self.current_entry += _extract_log_chars(message.data)
|
|
if len(self.current_entry) > 1 and self.current_entry[-1] == "\x1D":
|
|
channel_name, log_message = self.current_entry[:-1].split("\x1E", maxsplit=1)
|
|
vcd_value = ""
|
|
for c in log_message:
|
|
vcd_value += "{:08b}".format(ord(c))
|
|
self.vcd_channels[channel_name].set_value(vcd_value)
|
|
self.current_entry = ""
|
|
|
|
|
|
def get_vcd_log_channels(log_channel, messages):
|
|
vcd_log_channels = dict()
|
|
log_entry = ""
|
|
for message in messages:
|
|
if (isinstance(message, OutputMessage)
|
|
and message.channel == log_channel):
|
|
log_entry += _extract_log_chars(message.data)
|
|
if len(log_entry) > 1 and log_entry[-1] == "\x1D":
|
|
channel_name, log_message = log_entry[:-1].split("\x1E", maxsplit=1)
|
|
l = len(log_message)
|
|
if channel_name in vcd_log_channels:
|
|
if vcd_log_channels[channel_name] < l:
|
|
vcd_log_channels[channel_name] = l
|
|
else:
|
|
vcd_log_channels[channel_name] = l
|
|
log_entry = ""
|
|
return vcd_log_channels
|
|
|
|
|
|
def get_single_device_argument(devices, module, cls, argument):
|
|
ref_period = None
|
|
for desc in devices.values():
|
|
if isinstance(desc, dict) and desc["type"] == "local":
|
|
if (desc["module"] == module
|
|
and desc["class"] == cls):
|
|
if ref_period is None:
|
|
ref_period = desc["arguments"][argument]
|
|
else:
|
|
return None # more than one device found
|
|
return ref_period
|
|
|
|
|
|
def get_ref_period(devices):
|
|
return get_single_device_argument(devices, "artiq.coredevice.core",
|
|
"Core", "ref_period")
|
|
|
|
|
|
def get_dds_sysclk(devices):
|
|
return get_single_device_argument(devices, "artiq.coredevice.dds",
|
|
"CoreDDS", "sysclk")
|
|
|
|
|
|
def create_channel_handlers(vcd_manager, devices, ref_period,
|
|
dds_sysclk, dds_onehot_sel):
|
|
channel_handlers = dict()
|
|
for name, desc in sorted(devices.items(), key=itemgetter(0)):
|
|
if isinstance(desc, dict) and desc["type"] == "local":
|
|
if (desc["module"] == "artiq.coredevice.ttl"
|
|
and desc["class"] in {"TTLOut", "TTLInOut"}):
|
|
channel = desc["arguments"]["channel"]
|
|
channel_handlers[channel] = TTLHandler(vcd_manager, name)
|
|
if (desc["module"] == "artiq.coredevice.ttl"
|
|
and desc["class"] == "TTLClockGen"):
|
|
channel = desc["arguments"]["channel"]
|
|
channel_handlers[channel] = TTLClockGenHandler(vcd_manager, name, ref_period)
|
|
if (desc["module"] == "artiq.coredevice.dds"
|
|
and desc["class"] in {"AD9858", "AD9914"}):
|
|
dds_bus_channel = desc["arguments"]["bus_channel"]
|
|
dds_channel = desc["arguments"]["channel"]
|
|
if dds_bus_channel in channel_handlers:
|
|
dds_handler = channel_handlers[dds_bus_channel]
|
|
if dds_handler.dds_type != desc["class"]:
|
|
raise ValueError("All DDS channels must have the same type")
|
|
else:
|
|
dds_handler = DDSHandler(vcd_manager, desc["class"],
|
|
dds_onehot_sel, dds_sysclk)
|
|
channel_handlers[dds_bus_channel] = dds_handler
|
|
dds_handler.add_dds_channel(name, dds_channel)
|
|
return channel_handlers
|
|
|
|
|
|
def get_message_time(message):
|
|
return getattr(message, "timestamp", message.rtio_counter)
|
|
|
|
|
|
def decoded_dump_to_vcd(fileobj, devices, dump):
|
|
vcd_manager = VCDManager(fileobj)
|
|
ref_period = get_ref_period(devices)
|
|
if ref_period is not None:
|
|
vcd_manager.set_timescale_ps(ref_period*1e12)
|
|
else:
|
|
logger.warning("unable to determine core device ref_period")
|
|
ref_period = 1e-9 # guess
|
|
dds_sysclk = get_dds_sysclk(devices)
|
|
if dds_sysclk is None:
|
|
logger.warning("unable to determine DDS sysclk")
|
|
dds_sysclk = 3e9 # guess
|
|
|
|
if isinstance(dump.messages[-1], StoppedMessage):
|
|
messages = dump.messages[:-1]
|
|
else:
|
|
logger.warning("StoppedMessage missing")
|
|
messages = dump.messages
|
|
messages = sorted(messages, key=get_message_time)
|
|
|
|
channel_handlers = create_channel_handlers(
|
|
vcd_manager, devices, ref_period,
|
|
dds_sysclk, dump.dds_onehot_sel)
|
|
vcd_log_channels = get_vcd_log_channels(dump.log_channel, messages)
|
|
channel_handlers[dump.log_channel] = LogHandler(
|
|
vcd_manager, vcd_log_channels)
|
|
slack = vcd_manager.get_channel("rtio_slack", 64)
|
|
|
|
vcd_manager.set_time(0)
|
|
if messages:
|
|
start_time = get_message_time(messages[0])
|
|
for message in messages:
|
|
if message.channel in channel_handlers:
|
|
vcd_manager.set_time(
|
|
get_message_time(message) - start_time)
|
|
channel_handlers[message.channel].process_message(message)
|
|
if isinstance(message, OutputMessage):
|
|
slack.set_value_double(
|
|
(message.timestamp - message.rtio_counter)*ref_period)
|