1 files changed, 44 insertions, 38 deletions
diff --git a/test/timer_calib.py b/test/timer_calib.py
index 2a625d80c7..2b7c33060e 100644
--- a/test/timer_calib.py
+++ b/test/timer_calib.py
@@ -1,4 +1,4 @@
-# Copyright 2011 The Chromium OS Authors. All rights reserved.
+# Copyright 2011 The ChromiumOS Authors
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
@@ -7,48 +7,54 @@
 
 import time
 
-def one_pass(helper):
-      helper.wait_output("=== Timer calibration ===")
-      res = helper.wait_output("back-to-back get_time : (?P<lat>[0-9]+) us",
-                               use_re=True)["lat"]
-      minlat = int(res)
-      helper.trace("get_time latency %d us\n" % minlat)
-
-      helper.wait_output("sleep 1s")
-      t0 = time.time()
-      second = helper.wait_output("done. delay = (?P<second>[0-9]+) us",
-                               use_re=True)["second"]
-      t1 = time.time()
-      secondreal = t1 - t0
-      secondlat = int(second) - 1000000
-      helper.trace("1s timer latency %d us / real time %f s\n" % (secondlat,
-                                                                  secondreal))
-
 
-      us = {}
-      for pow2 in range(7):
-          delay = 1 << (7-pow2)
-          us[delay] = helper.wait_output("%d us => (?P<us>[0-9]+) us" % delay,
-                                  use_re=True)["us"]
-      helper.wait_output("Done.")
-
-      return minlat, secondlat, secondreal
+def one_pass(helper):
+    helper.wait_output("=== Timer calibration ===")
+    res = helper.wait_output(
+        "back-to-back get_time : (?P<lat>[0-9]+) us", use_re=True
+    )["lat"]
+    minlat = int(res)
+    helper.trace("get_time latency %d us\n" % minlat)
+
+    helper.wait_output("sleep 1s")
+    t0 = time.time()
+    second = helper.wait_output(
+        "done. delay = (?P<second>[0-9]+) us", use_re=True
+    )["second"]
+    t1 = time.time()
+    secondreal = t1 - t0
+    secondlat = int(second) - 1000000
+    helper.trace(
+        "1s timer latency %d us / real time %f s\n" % (secondlat, secondreal)
+    )
+
+    us = {}
+    for pow2 in range(7):
+        delay = 1 << (7 - pow2)
+        us[delay] = helper.wait_output(
+            "%d us => (?P<us>[0-9]+) us" % delay, use_re=True
+        )["us"]
+    helper.wait_output("Done.")
+
+    return minlat, secondlat, secondreal
 
 
 def test(helper):
-      one_pass(helper)
+    one_pass(helper)
 
-      helper.ec_command("reboot")
-      helper.wait_output("--- UART initialized")
+    helper.ec_command("reboot")
+    helper.wait_output("--- UART initialized")
 
-      # get the timing results on the second pass
-      # to avoid binary translation overhead
-      minlat, secondlat, secondreal = one_pass(helper)
+    # get the timing results on the second pass
+    # to avoid binary translation overhead
+    minlat, secondlat, secondreal = one_pass(helper)
 
-      # check that the timings somewhat make sense
-      if minlat > 220 or secondlat > 500 or abs(secondreal-1.0) > 0.200:
-           helper.fail("imprecise timings " +
-                       "(get_time %d us sleep %d us / real time %.3f s)" %
-                       (minlat, secondlat, secondreal))
+    # check that the timings somewhat make sense
+    if minlat > 220 or secondlat > 500 or abs(secondreal - 1.0) > 0.200:
+        helper.fail(
+            "imprecise timings "
+            + "(get_time %d us sleep %d us / real time %.3f s)"
+            % (minlat, secondlat, secondreal)
+        )
 
-      return True # PASS !
+    return True  # PASS !