scripts: zephyr_flash_debug: flash like bossa-flash.sh
Add support for flashing targets compatible with bossa-flash.sh.
This is something of a bug-for-bug reimplementation, as the existing
flashing script makes some potentially unsafe assumptions.
Only tested by comparing commands that would be run.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
diff --git a/scripts/support/zephyr_flash_debug.py b/scripts/support/zephyr_flash_debug.py
index 3414766..f21fdf2 100755
--- a/scripts/support/zephyr_flash_debug.py
+++ b/scripts/support/zephyr_flash_debug.py
@@ -14,6 +14,7 @@
from os import path
import os
import pprint
+import platform
import sys
import subprocess
import time
@@ -84,6 +85,48 @@
'''Flash the board.'''
+class BossacBinaryFlasher(ZephyrBinaryFlasher):
+ '''Flasher front-end for bossac.'''
+
+ def __init__(self, bin_name, bossac='bossac', debug=False):
+ super(BossacBinaryFlasher, self).__init__(debug=debug)
+ self.bin_name = bin_name
+ self.bossac = bossac
+
+ def replaces_shell_script(shell_script):
+ return shell_script == 'bossa-flash.sh'
+
+ def create_from_env(debug):
+ '''Create flasher from environment.
+
+ Required:
+
+ - O: build output directory
+ - KERNEL_BIN_NAME: name of kernel binary
+
+ Optional:
+
+ - BOSSAC: path to bossac, default is bossac
+ '''
+ bin_name = path.join(get_env_or_bail('O'),
+ get_env_or_bail('KERNEL_BIN_NAME'))
+ bossac = os.environ.get('BOSSAC', 'bossac')
+ return BossacBinaryFlasher(bin_name, bossac=bossac, debug=debug)
+
+ def flash(self, **kwargs):
+ if platform.system() != 'Linux':
+ msg = 'CAUTION: No flash tool for your host system found!'
+ raise NotImplementedError(msg)
+
+ cmd_stty = ['stty', '-F', '/dev/ttyACM0', 'raw', 'ispeed', '1200',
+ 'ospeed', '1200', 'cs8', '-cstopb', 'ignpar', 'eol', '255',
+ 'eof', '255']
+ cmd_flash = [self.bossac, '-R', '-e', '-w', '-v', '-b', self.bin_name]
+
+ check_call(cmd_stty, self.debug)
+ check_call(cmd_flash, self.debug)
+
+
class DfuUtilBinaryFlasher(ZephyrBinaryFlasher):
'''Flasher front-end for dfu-util.'''
