binman: Move state information into a new module
At present the control module has state information in it, since it is the
primary user of this. But it is a bit odd to have entries and other
modules importing control to obtain this information.
It seems better to have a dedicated state module, which control can use as
well. Create a new module using code from control and update other modules
to use it.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/state.py b/tools/binman/state.py
new file mode 100644
index 0000000..6bc24dd
--- /dev/null
+++ b/tools/binman/state.py
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright 2018 Google, Inc
+# Written by Simon Glass <sjg@chromium.org>
+#
+# Holds and modifies the state information held by binman
+#
+
+import re
+from sets import Set
+
+import os
+import tools
+
+# Records the device-tree files known to binman, keyed by filename (e.g.
+# 'u-boot-spl.dtb')
+fdt_files = {}
+
+# Arguments passed to binman to provide arguments to entries
+entry_args = {}
+
+def GetFdt(fname):
+ """Get the Fdt object for a particular device-tree filename
+
+ Binman keeps track of at least one device-tree file called u-boot.dtb but
+ can also have others (e.g. for SPL). This function looks up the given
+ filename and returns the associated Fdt object.
+
+ Args:
+ fname: Filename to look up (e.g. 'u-boot.dtb').
+
+ Returns:
+ Fdt object associated with the filename
+ """
+ return fdt_files[fname]
+
+def GetFdtPath(fname):
+ """Get the full pathname of a particular Fdt object
+
+ Similar to GetFdt() but returns the pathname associated with the Fdt.
+
+ Args:
+ fname: Filename to look up (e.g. 'u-boot.dtb').
+
+ Returns:
+ Full path name to the associated Fdt
+ """
+ return fdt_files[fname]._fname
+
+def SetEntryArgs(args):
+ """Set the value of the entry args
+
+ This sets up the entry_args dict which is used to supply entry arguments to
+ entries.
+
+ Args:
+ args: List of entry arguments, each in the format "name=value"
+ """
+ global entry_args
+
+ entry_args = {}
+ if args:
+ for arg in args:
+ m = re.match('([^=]*)=(.*)', arg)
+ if not m:
+ raise ValueError("Invalid entry arguemnt '%s'" % arg)
+ entry_args[m.group(1)] = m.group(2)
+
+def GetEntryArg(name):
+ """Get the value of an entry argument
+
+ Args:
+ name: Name of argument to retrieve
+
+ Returns:
+ String value of argument
+ """
+ return entry_args.get(name)