sf: Drop spl_flash_get_sw_write_prot
[oweals/u-boot.git] / test / py / u_boot_console_exec_attach.py
1 # SPDX-License-Identifier: GPL-2.0
2 # Copyright (c) 2015 Stephen Warren
3 # Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
4
5 # Logic to interact with U-Boot running on real hardware, typically via a
6 # physical serial port.
7
8 import sys
9 from u_boot_spawn import Spawn
10 from u_boot_console_base import ConsoleBase
11
12 class ConsoleExecAttach(ConsoleBase):
13     """Represents a physical connection to a U-Boot console, typically via a
14     serial port. This implementation executes a sub-process to attach to the
15     console, expecting that the stdin/out of the sub-process will be forwarded
16     to/from the physical hardware. This approach isolates the test infra-
17     structure from the user-/installation-specific details of how to
18     communicate with, and the identity of, serial ports etc."""
19
20     def __init__(self, log, config):
21         """Initialize a U-Boot console connection.
22
23         Args:
24             log: A multiplexed_log.Logfile instance.
25             config: A "configuration" object as defined in conftest.py.
26
27         Returns:
28             Nothing.
29         """
30
31         # The max_fifo_fill value might need tweaking per-board/-SoC?
32         # 1 would be safe anywhere, but is very slow (a pexpect issue?).
33         # 16 is a common FIFO size.
34         # HW flow control would mean this could be infinite.
35         super(ConsoleExecAttach, self).__init__(log, config, max_fifo_fill=16)
36
37         with self.log.section('flash'):
38             self.log.action('Flashing U-Boot')
39             cmd = ['u-boot-test-flash', config.board_type, config.board_identity]
40             runner = self.log.get_runner(cmd[0], sys.stdout)
41             runner.run(cmd)
42             runner.close()
43             self.log.status_pass('OK')
44
45     def get_spawn(self):
46         """Connect to a fresh U-Boot instance.
47
48         The target board is reset, so that U-Boot begins running from scratch.
49
50         Args:
51             None.
52
53         Returns:
54             A u_boot_spawn.Spawn object that is attached to U-Boot.
55         """
56
57         args = [self.config.board_type, self.config.board_identity]
58         s = Spawn(['u-boot-test-console'] + args)
59
60         try:
61             self.log.action('Resetting board')
62             cmd = ['u-boot-test-reset'] + args
63             runner = self.log.get_runner(cmd[0], sys.stdout)
64             runner.run(cmd)
65             runner.close()
66         except:
67             s.close()
68             raise
69
70         return s