Send the Labgrid quit characters to ask it to exit gracefully. This typically allows it to power off the board being used. Only do this when labgrid is being used (detected with an env var).
If that doesn't work, try the less graceful approach.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v8: - Use USE_LABGRID_SJG for graceful shutdown
Changes in v6: - Avoid doing the special shutdown unless USE_LABGRID is enabled
test/py/u_boot_spawn.py | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/test/py/u_boot_spawn.py b/test/py/u_boot_spawn.py index f2398098a00..dc936e7eddf 100644 --- a/test/py/u_boot_spawn.py +++ b/test/py/u_boot_spawn.py @@ -16,6 +16,9 @@ import termios import time import traceback
+# Character to send (twice) to exit the terminal +EXIT_CHAR = 0x1d # FS (Ctrl + ]) + class Timeout(Exception): """An exception sub-class that indicates that a timeout occurred."""
@@ -303,15 +306,28 @@ class Spawn: None.
Returns: - Nothing. + str: Type of closure completed """ - + # For Labgrid-sjg, ask it is exit gracefully, so it can transition the + # board to the final state (like 'off') before exiting. + if os.environ.get('USE_LABGRID_SJG'): + self.send(chr(EXIT_CHAR) * 2) + + # Wait about 10 seconds for Labgrid to close and power off the board + for _ in range(100): + if not self.isalive(): + return 'normal' + time.sleep(0.1) + + # That didn't work, so try closing the PTY os.close(self.fd) for _ in range(100): if not self.isalive(): - break + return 'break' time.sleep(0.1)
+ return 'timeout' + def get_expect_output(self): """Return the output read by expect()