mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 04:36:16 +09:00
16287933a8
At present binman sets the python path on startup so that it can access the libraries it needs. If we convert to use absolute imports this is not necessary. Move binman to use absolute imports. This enables removable of the path adjusting in Entry also. Signed-off-by: Simon Glass <sjg@chromium.org>
67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2018 Google, Inc
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# Written by Simon Glass <sjg@chromium.org>
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#
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# Entry-type module for U-Boot device tree files
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#
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from binman.entry import Entry
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from binman.etype.blob import Entry_blob
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class Entry_blob_dtb(Entry_blob):
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"""A blob that holds a device tree
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This is a blob containing a device tree. The contents of the blob are
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obtained from the list of available device-tree files, managed by the
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'state' module.
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"""
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def __init__(self, section, etype, node):
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# Put this here to allow entry-docs and help to work without libfdt
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global state
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from binman import state
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Entry_blob.__init__(self, section, etype, node)
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def ObtainContents(self):
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"""Get the device-tree from the list held by the 'state' module"""
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self._filename = self.GetDefaultFilename()
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self._pathname, _ = state.GetFdtContents(self.GetFdtEtype())
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return Entry_blob.ReadBlobContents(self)
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def ProcessContents(self):
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"""Re-read the DTB contents so that we get any calculated properties"""
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_, indata = state.GetFdtContents(self.GetFdtEtype())
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data = self.CompressData(indata)
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return self.ProcessContentsUpdate(data)
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def GetFdtEtype(self):
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"""Get the entry type of this device tree
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This can be 'u-boot-dtb', 'u-boot-spl-dtb' or 'u-boot-tpl-dtb'
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Returns:
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Entry type if any, e.g. 'u-boot-dtb'
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"""
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return None
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def GetFdts(self):
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"""Get the device trees used by this entry
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Returns:
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Dict:
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key: Filename from this entry (without the path)
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value: Tuple:
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Fdt object for this dtb, or None if not available
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Filename of file containing this dtb
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"""
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fname = self.GetDefaultFilename()
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return {self.GetFdtEtype(): [self, fname]}
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def WriteData(self, data, decomp=True):
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ok = Entry_blob.WriteData(self, data, decomp)
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# Update the state module, since it has the authoritative record of the
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# device trees used. If we don't do this, then state.GetFdtContents()
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# will still return the old contents
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state.UpdateFdtContents(self.GetFdtEtype(), data)
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return ok
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