1# SPDX-License-Identifier: GPL-2.0+ 2# Copyright (c) 2018 Google, Inc 3# Written by Simon Glass <sjg@chromium.org> 4# 5# Entry-type module for a set of files which are placed in individual 6# sub-entries 7# 8 9import glob 10import os 11 12from binman.etype.section import Entry_section 13from dtoc import fdt_util 14from u_boot_pylib import tools 15 16# This is imported if needed 17state = None 18 19class Entry_files(Entry_section): 20 """A set of files arranged in a section 21 22 Properties / Entry arguments: 23 - pattern: Filename pattern to match the files to include 24 - files-compress: Compression algorithm to use: 25 none: No compression 26 lz4: Use lz4 compression (via 'lz4' command-line utility) 27 - files-align: Align each file to the given alignment 28 29 This entry reads a number of files and places each in a separate sub-entry 30 within this entry. To access these you need to enable device-tree updates 31 at run-time so you can obtain the file positions. 32 """ 33 def __init__(self, section, etype, node): 34 # Put this here to allow entry-docs and help to work without libfdt 35 global state 36 from binman import state 37 38 super().__init__(section, etype, node) 39 40 def ReadNode(self): 41 super().ReadNode() 42 self._pattern = fdt_util.GetString(self._node, 'pattern') 43 if not self._pattern: 44 self.Raise("Missing 'pattern' property") 45 self._files_compress = fdt_util.GetString(self._node, 'files-compress', 46 'none') 47 self._files_align = fdt_util.GetInt(self._node, 'files-align'); 48 self._require_matches = fdt_util.GetBool(self._node, 49 'require-matches') 50 51 def gen_entries(self): 52 files = tools.get_input_filename_glob(self._pattern) 53 if self._require_matches and not files: 54 self.Raise("Pattern '%s' matched no files" % self._pattern) 55 for fname in files: 56 if not os.path.isfile(fname): 57 continue 58 name = os.path.basename(fname) 59 subnode = self._node.FindNode(name) 60 if not subnode: 61 subnode = state.AddSubnode(self._node, name) 62 state.AddString(subnode, 'type', 'blob') 63 state.AddString(subnode, 'filename', fname) 64 state.AddString(subnode, 'compress', self._files_compress) 65 if self._files_align: 66 state.AddInt(subnode, 'align', self._files_align) 67 68 # Read entries again, now that we have some 69 self.ReadEntries() 70