Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/scripts/lib/wic/utils/syslinux.py b/scripts/lib/wic/utils/syslinux.py
new file mode 100644
index 0000000..aace286
--- /dev/null
+++ b/scripts/lib/wic/utils/syslinux.py
@@ -0,0 +1,58 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; version 2 of the License
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# AUTHOR
+# Adrian Freihofer <adrian.freihofer (at] neratec.com>
+
+
+import re
+from wic import msger
+
+
+def serial_console_form_kargs(kernel_args):
+ """
+ Create SERIAL... line from kernel parameters
+
+ syslinux needs a line SERIAL port [baudrate [flowcontrol]]
+ in the syslinux.cfg file. The config line is generated based
+ on kernel boot parameters. The the parameters of the first
+ ttyS console are considered for syslinux config.
+ @param kernel_args kernel command line
+ @return line for syslinux config file e.g. "SERIAL 0 115200"
+ """
+ syslinux_conf = ""
+ for param in kernel_args.split():
+ param_match = re.match("console=ttyS([0-9]+),?([0-9]*)([noe]?)([0-9]?)(r?)", param)
+ if param_match:
+ syslinux_conf += "SERIAL " + param_match.group(1)
+ # baudrate
+ if param_match.group(2):
+ syslinux_conf += " " + param_match.group(2)
+ # parity
+ if param_match.group(3) and param_match.group(3) != 'n':
+ msger.warning("syslinux does not support parity for console. {} is ignored."
+ .format(param_match.group(3)))
+ # number of bits
+ if param_match.group(4) and param_match.group(4) != '8':
+ msger.warning("syslinux supports 8 bit console configuration only. {} is ignored."
+ .format(param_match.group(4)))
+ # flow control
+ if param_match.group(5) and param_match.group(5) != '':
+ msger.warning("syslinux console flowcontrol configuration. {} is ignored."
+ .format(param_match.group(5)))
+ break
+
+ return syslinux_conf