150 lines
5.5 KiB
Python
150 lines
5.5 KiB
Python
# Copyright (c) 2019 Thomas Kupper <thomas.kupper@gmail.com>
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#
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# SPDX-License-Identifier: Apache-2.0
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'''Runner for flashing with stm32flash.'''
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from os import path
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import platform
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from runners.core import ZephyrBinaryRunner, RunnerCaps
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DEFAULT_DEVICE = '/dev/ttyUSB0'
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if platform.system() == 'Darwin':
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DEFAULT_DEVICE = '/dev/tty.SLAB_USBtoUART'
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class Stm32flashBinaryRunner(ZephyrBinaryRunner):
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'''Runner front-end for stm32flash.'''
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def __init__(self, cfg, device, action='write', baud=57600,
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force_binary=False, start_addr=0, exec_addr=None,
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serial_mode='8e1', reset=False, verify=False):
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super(Stm32flashBinaryRunner, self).__init__(cfg)
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self.device = device
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self.action = action
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self.baud = baud
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self.force_binary = force_binary
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self.start_addr = start_addr
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self.exec_addr = exec_addr
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self.serial_mode = serial_mode
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self.reset = reset
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self.verify = verify
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@classmethod
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def name(cls):
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return 'stm32flash'
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@classmethod
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def capabilities(cls):
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return RunnerCaps(commands={'flash'})
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@classmethod
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def do_add_parser(cls, parser):
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# required argument(s)
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# none for now
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# optional argument(s)
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parser.add_argument('--device', default=DEFAULT_DEVICE, required=False,
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help='serial port to flash, default \'' + DEFAULT_DEVICE + '\'')
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parser.add_argument('--action', default='write', required=False,
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choices=['erase', 'info', 'start', 'write'],
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help='erase / get device info / start execution / write flash')
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parser.add_argument('--baud-rate', default='57600', required=False,
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choices=['1200', '1800', '2400', '4800', '9600', '19200',
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'38400', '57600', '115200', '230400', '256000', '460800',
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'500000', '576000', '921600', '1000000', '1500000', '2000000'],
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help='serial baud rate, default \'57600\'')
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parser.add_argument('--force-binary', required=False, action='store_true',
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help='force the binary parser')
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parser.add_argument('--start-addr', default=0, required=False,
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help='specify start address for write operation, default \'0\'')
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parser.add_argument('--execution-addr', default=None, required=False,
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help='start execution at specified address, default \'0\' \
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which means start of flash')
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parser.add_argument('--serial-mode', default='8e1', required=False,
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help='serial port mode, default \'8e1\'')
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parser.add_argument('--reset', default=False, required=False, action='store_true',
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help='reset device at exit, default False')
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parser.add_argument('--verify', default=False, required=False, action='store_true',
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help='verify writes, default False')
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@classmethod
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def create(cls, cfg, args):
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return Stm32flashBinaryRunner(cfg, device=args.device, action=args.action,
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baud=args.baud_rate, force_binary=args.force_binary,
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start_addr=args.start_addr, exec_addr=args.execution_addr,
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serial_mode=args.serial_mode, reset=args.reset, verify=args.verify)
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def do_run(self, command, **kwargs):
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self.require('stm32flash')
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bin_name = self.cfg.bin_file
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bin_size = path.getsize(bin_name)
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cmd_flash = ['stm32flash', '-b', self.baud,
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'-m', self.serial_mode]
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action = self.action.lower()
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if action == 'info':
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# show device information and exit
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msg_text = "get device info from {}".format(self.device)
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elif action == 'erase':
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# erase flash
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#size_aligned = (int(bin_size) >> 12) + 1 << 12
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size_aligned = (int(bin_size) & 0xfffff000) + 4096
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msg_text = "erase {} bit starting at {}".format(size_aligned, self.start_addr)
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cmd_flash.extend([
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'-S', self.start_addr + ":" + str(size_aligned), '-o'])
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elif action == 'start':
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# start execution
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msg_text = "start code execution at {}".format(self.exec_addr)
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if self.exec_addr:
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if self.exec_addr == 0 or self.exec_addr.lower() == '0x0':
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msg_text += " (flash start)"
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else:
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self.exec_addr = 0
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cmd_flash.extend([
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'-g', str(self.exec_addr)])
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elif action == 'write':
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# flash binary file
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msg_text = "write {} bytes starting at {}".format(bin_size, self.start_addr)
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cmd_flash.extend([
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'-S', self.start_addr + ":" + str(bin_size),
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'-w', bin_name])
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if self.exec_addr:
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cmd_flash.extend(['-g', self.exec_addr])
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if self.force_binary:
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cmd_flash.extend(['-f'])
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if self.reset:
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cmd_flash.extend(['-R'])
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if self.verify:
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cmd_flash.extend(['-v'])
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else:
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msg_text = "invalid action \'{}\' passed!".format(action)
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self.logger.error('Invalid action \'{}\' passed!'.format(action))
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return -1
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cmd_flash.extend([self.device])
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self.logger.info("Board: " + msg_text)
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self.check_call(cmd_flash)
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self.logger.info('Board: finished \'{}\' .'.format(action))
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