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collapseos/tools/upload.py
Virgil Dupras f395297874 Improve python tools' shebang
Most OS don't have python3 in /usr/bin/python...
2019-11-04 14:43:27 -05:00

85 lines
2.7 KiB
Python
Executable File

#!/usr/bin/env python3
# Push specified file to specified device and verify that the contents is
# correct by sending a "peek" command afterwards and check the output. Errors
# out if the contents isn't the same. The parameter passed to the "peek"
# command is the length of the uploaded file.
import argparse
import os
import sys
import time
def sendcmd(fd, cmd):
# The serial link echoes back all typed characters and expects us to read
# them. We have to send each char one at a time.
print("Executing {}".format(cmd.decode()))
for c in cmd:
os.write(fd, bytes([c]))
os.read(fd, 1)
os.write(fd, b'\n')
os.read(fd, 2) # sends back \r\n
def main():
parser = argparse.ArgumentParser()
parser.add_argument('device')
parser.add_argument('memptr')
parser.add_argument('filename')
args = parser.parse_args()
try:
memptr = int('0x' + args.memptr, 0)
except ValueError:
print("memptr are has to be hexadecimal without prefix.")
return 1
if memptr >= 0x10000:
print("memptr out of range.")
return 1
maxsize = 0x10000 - memptr
st = os.stat(args.filename)
if st.st_size > maxsize:
print("File too big. 0x{:04x} bytes max".format(maxsize))
return 1
fd = os.open(args.device, os.O_RDWR)
with open(args.filename, 'rb') as fp:
while True:
fcontents = fp.read(0xff)
if not fcontents:
break
print("Seeking...")
sendcmd(fd, 'mptr {:04x}'.format(memptr).encode())
os.read(fd, 9)
sendcmd(fd, 'poke {:x}'.format(len(fcontents)).encode())
print("Poking...")
for c in fcontents:
os.write(fd, bytes([c]))
# Let's give the machine a bit of time to breathe. We ain't in a
# hurry now, are we?
time.sleep(0.0001)
print("Poked")
os.read(fd, 5)
print("Peeking back...")
sendcmd(fd, 'peek {:x}'.format(len(fcontents)).encode())
peek = b''
while len(peek) < len(fcontents) * 2:
peek += os.read(fd, 1)
time.sleep(0.0001)
os.read(fd, 5)
print("Got {}".format(peek.decode()))
print("Comparing...")
for i, c in enumerate(fcontents):
hexfmt = '{:02X}'.format(c).encode()
if hexfmt != peek[:2]:
print("Mismatch at byte {}! {} != {}".format(i, peek[:2], hexfmt))
return 1
peek = peek[2:]
print("All good!")
memptr += len(fcontents)
print("Done!")
os.close(fd)
return 0
if __name__ == '__main__':
sys.exit(main())