1 # Copyright (c) 2015 Stephen Warren
2 # Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
4 # SPDX-License-Identifier: GPL-2.0
6 # Logic to interact with the sandbox port of U-Boot, running as a sub-process.
9 from u_boot_spawn import Spawn
10 from u_boot_console_base import ConsoleBase
12 class ConsoleSandbox(ConsoleBase):
13 """Represents a connection to a sandbox U-Boot console, executed as a sub-
16 def __init__(self, log, config):
17 """Initialize a U-Boot console connection.
20 log: A multiplexed_log.Logfile instance.
21 config: A "configuration" object as defined in conftest.py.
27 super(ConsoleSandbox, self).__init__(log, config, max_fifo_fill=1024)
30 """Connect to a fresh U-Boot instance.
32 A new sandbox process is created, so that U-Boot begins running from
39 A u_boot_spawn.Spawn object that is attached to U-Boot.
43 self.config.build_dir + '/u-boot',
45 self.config.build_dir + '/arch/sandbox/dts/test.dtb'
47 return Spawn(cmd, cwd=self.config.source_dir)
50 """Send a specific Unix signal to the sandbox process.
53 sig: The Unix signal to send to the process.
59 self.log.action('kill %d' % sig)
62 def validate_exited(self):
63 """Determine whether the sandbox process has exited.
65 If required, this function waits a reasonable time for the process to
72 Boolean indicating whether the process has exited.