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-rwxr-xr-xcrc/gen-crc.py14
1 files changed, 14 insertions, 0 deletions
diff --git a/crc/gen-crc.py b/crc/gen-crc.py
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+++ b/crc/gen-crc.py
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+#!/usr/bin/python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+# SPDX-FileCopyrightText: 2020 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+
+import crcmod
+import sys
+
+# The initial value is ignored, it must instead be passed to the generated C
+# function.
+crc = crcmod.Crc(0x104c11db7, 0xffffffff, True, 0xffffffff)
+
+f = open(sys.argv[1], 'w')
+crc.generateCode('calculate_crc', f, 'uint8_t', 'uint32_t')
+f.close()