From 7b107ef820684cb6aa7f4fe87d2e462e4fffb5c9 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <daniel.friesel@uos.de>
Date: Wed, 8 Jul 2020 13:43:40 +0200
Subject: prepare for Logic Analyzer and Timing based EnergyTrace sync

---
 bin/generate-dfa-benchmark.py | 10 +++++++++-
 lib/harness.py                |  2 ++
 lib/runner.py                 | 16 ++++++++++++++--
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/bin/generate-dfa-benchmark.py b/bin/generate-dfa-benchmark.py
index b20dc72..1410c28 100755
--- a/bin/generate-dfa-benchmark.py
+++ b/bin/generate-dfa-benchmark.py
@@ -61,6 +61,10 @@ Options:
 
 --energytrace=[k=v,k=v,...]
     Perform energy measurements using MSP430 EnergyTrace hardware. Includes --timing.
+    Additional configuration settings:
+    sync = bar (Barcode mode (default): synchronize measurements via barcodes embedded in the energy trace)
+    sync = la (Logic Analyzer mode (WIP): An external logic analyzer captures transition timing)
+    sync = timing (Timing mode (WIP): The on-board cycle counter captures transition timing)
 
 --trace-filter=<transition,transition,transition,...>[ <transition,transition,transition,...> ...]
     Only consider traces whose beginning matches one of the provided transition sequences.
@@ -630,9 +634,13 @@ if __name__ == "__main__":
             post_transition_delay_us=20,
         )
     elif "energytrace" in opt:
+        # Use barcode sync by default
+        gpio_mode = "bar"
+        if "sync" in opt["energytrace"] and opt["energytrace"]["sync"] != "bar":
+            gpio_mode = "around"
         harness = OnboardTimerHarness(
             gpio_pin=timer_pin,
-            gpio_mode="bar",
+            gpio_mode=gpio_mode,
             pta=pta,
             counter_limits=runner.get_counter_limits_us(opt["arch"]),
             log_return_values=need_return_values,
diff --git a/lib/harness.py b/lib/harness.py
index 1c3dbe0..ae9c28c 100644
--- a/lib/harness.py
+++ b/lib/harness.py
@@ -229,6 +229,7 @@ class TransitionHarness:
             log_data_target["parameter"][parameter_name] = list()
         log_data_target["parameter"][parameter_name].append(parameter_value)
 
+    # Here Be Dragons
     def parser_cb(self, line):
         # print('[HARNESS] got line {}'.format(line))
         if re.match(r"\[PTA\] benchmark stop", line):
@@ -440,6 +441,7 @@ class OnboardTimerHarness(TransitionHarness):
             log_data_target["parameter"][parameter_name] = list()
         log_data_target["parameter"][parameter_name].append(parameter_value)
 
+    # Here Be Dragons
     def parser_cb(self, line):
         # print('[HARNESS] got line {}'.format(line))
         res = re.match(r"\[PTA\] nop=(\S+)/(\S+)", line)
diff --git a/lib/runner.py b/lib/runner.py
index 0a32091..0d4d449 100644
--- a/lib/runner.py
+++ b/lib/runner.py
@@ -178,6 +178,12 @@ class EnergyTraceMonitor(SerialMonitor):
             "voltage": self._voltage,
         }
 
+class EnergyTraceLogicAnalyzerMonitor(EnergyTraceMonitor):
+    """EnergyTraceLogicAnalyzerMonitor captures EnergyTrace energy data and LogicAnalyzer timing output."""
+
+    def __init__(self, port: str, baud: int, callback=None, voltage=3.3):
+        super().__init__(port=port, baud=baud, callback=callback, voltage=voltage)
+
 
 class MIMOSAMonitor(SerialMonitor):
     """MIMOSAMonitor captures serial output and MIMOSA energy data for a specific amount of time."""
@@ -372,8 +378,14 @@ def get_monitor(arch: str, **kwargs) -> object:
                 mimosa_kwargs = kwargs.pop("mimosa")
                 return MIMOSAMonitor(port, arg, **mimosa_kwargs, **kwargs)
             elif "energytrace" in kwargs and kwargs["energytrace"] is not None:
-                energytrace_kwargs = kwargs.pop("energytrace")
-                return EnergyTraceMonitor(port, arg, **energytrace_kwargs, **kwargs)
+                energytrace_kwargs = kwargs.pop("energytrace").copy()
+                sync_mode = energytrace_kwargs.pop("sync")
+                if sync_mode == "la":
+                    return EnergyTraceLogicAnalyzerMonitor(
+                        port, arg, **energytrace_kwargs, **kwargs
+                    )
+                else:
+                    return EnergyTraceMonitor(port, arg, **energytrace_kwargs, **kwargs)
             else:
                 kwargs.pop("energytrace", None)
                 kwargs.pop("mimosa", None)
-- 
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