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1#!/usr/bin/env python3
2#
3# Copyright © 2020 Google LLC
4#
5# Permission is hereby granted, free of charge, to any person obtaining a
6# copy of this software and associated documentation files (the "Software"),
7# to deal in the Software without restriction, including without limitation
8# the rights to use, copy, modify, merge, publish, distribute, sublicense,
9# and/or sell copies of the Software, and to permit persons to whom the
10# Software is furnished to do so, subject to the following conditions:
11#
12# The above copyright notice and this permission notice (including the next
13# paragraph) shall be included in all copies or substantial portions of the
14# Software.
15#
16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22# IN THE SOFTWARE.
23
24import argparse
25import os
26import re
27from serial_buffer import SerialBuffer
28import sys
29import threading
30
31class FastbootRun:
32    def __init__(self, args):
33        self.powerup = args.powerup
34        self.ser = SerialBuffer(args.dev, "results/serial-output.txt", "R SERIAL> ")
35        self.fastboot="fastboot boot -s {ser} artifacts/fastboot.img".format(ser=args.fbserial)
36
37    def logged_system(self, cmd):
38        print("Running '{}'".format(cmd))
39        return os.system(cmd)
40
41    def run(self):
42        if self.logged_system(self.powerup) != 0:
43            return 1
44
45        fastboot_ready = False
46        for line in self.ser.lines():
47            if re.search("fastboot: processing commands", line) or \
48                re.search("Listening for fastboot command on", line):
49                fastboot_ready = True
50                break
51
52            if re.search("data abort", line):
53                return 1
54
55        if not fastboot_ready:
56            print("Failed to get to fastboot prompt")
57            return 1
58
59        if self.logged_system(self.fastboot) != 0:
60            return 1
61
62        for line in self.ser.lines():
63            if re.search("---. end Kernel panic", line):
64                return 1
65
66            # The db820c boards intermittently reboot.  Just restart the run
67            # when if we see a reboot after we got past fastboot.
68            if re.search("PON REASON", line):
69                print("Detected spontaneous reboot, restarting run...")
70                return 2
71
72            result = re.search("bare-metal result: (\S*)", line)
73            if result:
74                if result.group(1) == "pass":
75                    return 0
76                else:
77                    return 1
78
79        print("Reached the end of the CPU serial log without finding a result")
80        return 1
81
82def main():
83    parser = argparse.ArgumentParser()
84    parser.add_argument('--dev', type=str, help='Serial device (otherwise reading from serial-output.txt)')
85    parser.add_argument('--powerup', type=str, help='shell command for rebooting', required=True)
86    parser.add_argument('--powerdown', type=str, help='shell command for powering off', required=True)
87    parser.add_argument('--fbserial', type=str, help='fastboot serial number of the board', required=True)
88    args = parser.parse_args()
89
90    fastboot = FastbootRun(args)
91
92    while True:
93        retval = fastboot.run()
94        if retval != 2:
95            break
96
97    fastboot.logged_system(args.powerdown)
98
99    sys.exit(retval)
100
101if __name__ == '__main__':
102    main()
103