65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
# Copyright (c) 2017 Linaro Limited.
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#
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# SPDX-License-Identifier: Apache-2.0
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'''bossac-specific runner (flash only) for Atmel SAM microcontrollers.'''
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from os import path
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import os
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import platform
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from .core import ZephyrBinaryRunner, get_env_or_bail
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DEFAULT_BOSSAC_PORT = '/dev/ttyACM0'
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class BossacBinaryRunner(ZephyrBinaryRunner):
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'''Runner front-end for bossac.'''
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def __init__(self, bin_name, bossac='bossac',
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port=DEFAULT_BOSSAC_PORT, debug=False):
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super(BossacBinaryRunner, self).__init__(debug=debug)
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self.bin_name = bin_name
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self.bossac = bossac
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self.port = port
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def replaces_shell_script(shell_script, command):
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return command == 'flash' and shell_script == 'bossa-flash.sh'
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def create_from_env(command, debug):
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'''Create flasher from environment.
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Required:
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- O: build output directory
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- KERNEL_BIN_NAME: name of kernel binary
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Optional:
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- BOSSAC: path to bossac, default is bossac
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- BOSSAC_PORT: serial port to use, default is /dev/ttyACM0
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'''
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bin_name = path.join(get_env_or_bail('O'),
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get_env_or_bail('KERNEL_BIN_NAME'))
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bossac = os.environ.get('BOSSAC', 'bossac')
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port = os.environ.get('BOSSAC_PORT', DEFAULT_BOSSAC_PORT)
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return BossacBinaryRunner(bin_name, bossac=bossac, port=port,
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debug=debug)
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def run(self, command, **kwargs):
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if command != 'flash':
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raise ValueError('only flash is supported')
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if platform.system() != 'Linux':
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msg = 'CAUTION: No flash tool for your host system found!'
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raise NotImplementedError(msg)
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cmd_stty = ['stty', '-F', self.port, 'raw', 'ispeed', '1200',
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'ospeed', '1200', 'cs8', '-cstopb', 'ignpar', 'eol', '255',
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'eof', '255']
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cmd_flash = [self.bossac, '-p', self.port, '-R', '-e', '-w', '-v',
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'-b', self.bin_name]
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self.check_call(cmd_stty)
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self.check_call(cmd_flash)
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