mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-20 17:58:06 +11:00
85 lines
2.7 KiB
Python
Executable File
85 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python3
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# Push specified file to specified device and verify that the contents is
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# correct by sending a "peek" command afterwards and check the output. Errors
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# out if the contents isn't the same. The parameter passed to the "peek"
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# command is the length of the uploaded file.
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import argparse
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import os
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import sys
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import time
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def sendcmd(fd, cmd):
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# The serial link echoes back all typed characters and expects us to read
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# them. We have to send each char one at a time.
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print("Executing {}".format(cmd.decode()))
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for c in cmd:
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os.write(fd, bytes([c]))
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os.read(fd, 1)
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os.write(fd, b'\n')
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os.read(fd, 2) # sends back \r\n
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('device')
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parser.add_argument('memptr')
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parser.add_argument('filename')
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args = parser.parse_args()
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try:
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memptr = int('0x' + args.memptr, 0)
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except ValueError:
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print("memptr are has to be hexadecimal without prefix.")
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return 1
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if memptr >= 0x10000:
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print("memptr out of range.")
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return 1
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maxsize = 0x10000 - memptr
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st = os.stat(args.filename)
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if st.st_size > maxsize:
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print("File too big. 0x{:04x} bytes max".format(maxsize))
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return 1
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fd = os.open(args.device, os.O_RDWR)
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with open(args.filename, 'rb') as fp:
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while True:
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fcontents = fp.read(0xff)
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if not fcontents:
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break
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print("Seeking...")
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sendcmd(fd, 'mptr {:04x}'.format(memptr).encode())
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os.read(fd, 9)
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sendcmd(fd, 'poke {:x}'.format(len(fcontents)).encode())
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print("Poking...")
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for c in fcontents:
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os.write(fd, bytes([c]))
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# Let's give the machine a bit of time to breathe. We ain't in a
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# hurry now, are we?
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time.sleep(0.0001)
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print("Poked")
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os.read(fd, 5)
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print("Peeking back...")
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sendcmd(fd, 'peek {:x}'.format(len(fcontents)).encode())
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peek = b''
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while len(peek) < len(fcontents) * 2:
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peek += os.read(fd, 1)
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time.sleep(0.0001)
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os.read(fd, 5)
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print("Got {}".format(peek.decode()))
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print("Comparing...")
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for i, c in enumerate(fcontents):
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hexfmt = '{:02X}'.format(c).encode()
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if hexfmt != peek[:2]:
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print("Mismatch at byte {}! {} != {}".format(i, peek[:2], hexfmt))
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return 1
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peek = peek[2:]
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print("All good!")
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memptr += len(fcontents)
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print("Done!")
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os.close(fd)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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