firmware-gen.py: Add script to generate firmware c files.

1 files changed, 105 insertions, 0 deletions

diff --git a/firmware-gen.py b/firmware-gen.py
new file mode 100755
index 00000000..d6b762b3
--- /dev/null
+++ b/firmware-gen.py
@@ -0,0 +1,105 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2016 embedded brains GmbH.  All rights reserved.
+# 
+#  embedded brains GmbH
+#  Dornierstr. 4
+#  82178 Puchheim
+#  Germany
+#  <rtems@embedded-brains.de>
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+import argparse
+import re
+
+parser = argparse.ArgumentParser(
+    description=(
+        "Convert a binary firmware file to a rtems-libbsd firmware c file. "
+        "Note that you have to convert the FreeBSD uu-encoded files first."
+    ))
+
+parser.add_argument(
+    "name",
+    help="Name of the firmware",
+)
+parser.add_argument(
+    "fw_bin",
+    help="Binary firmware file.",
+    type=argparse.FileType("rb"),
+)
+parser.add_argument(
+    "out",
+    help="Output file.",
+    type=argparse.FileType("w"),
+)
+parser.add_argument(
+    "-l", "--license",
+    help="License file. Will be formatted as a comment and put on top.",
+    type=argparse.FileType("r"),
+)
+
+args = parser.parse_args()
+
+if args.license is not None:
+    args.out.write("/*\n")
+    for line in args.license:
+        args.out.write(" * " + line)
+    args.out.write(" */\n")
+
+name = args.name
+cname = re.sub(r'[^0-9a-zA-Z]', "_", name)
+
+args.out.write("#include <machine/rtems-bsd-kernel-space.h>\n")
+args.out.write("#include <sys/types.h>\n")
+args.out.write("#include <sys/kernel.h>\n")
+args.out.write("#include <sys/firmware.h>\n")
+args.out.write("\n")
+args.out.write("static const unsigned char %s[] = {" % (cname))
+count = 0
+while True:
+    c = args.fw_bin.read(1)
+    if not c:
+        break
+    if count % 12 == 0:
+        args.out.write("\n\t")
+    count = count + 1
+    args.out.write("0x%02x, " % ord(c))
+
+args.out.write("\n};\n")
+args.out.write("static const size_t %s_size = sizeof(%s);\n" % (cname, cname))
+args.out.write("\n")
+args.out.write("static void\n")
+args.out.write("%s_sysinit(void)\n" % (cname))
+args.out.write("{\n")
+args.out.write("\tconst struct firmware *fp;\n")
+args.out.write("\tfp = firmware_register(\"%s\",\n" % (name))
+args.out.write("\t    %s,\n" % (cname))
+args.out.write("\t    %s_size,\n" % (cname))
+args.out.write("\t    1, NULL);\n")
+args.out.write("\tBSD_ASSERT(fp != NULL);\n")
+args.out.write("}\n")
+args.out.write("SYSINIT(%s, SI_SUB_DRIVERS, SI_ORDER_ANY,\n" % (cname))
+args.out.write("    %s_sysinit, NULL);\n" % (cname))
+
+# vim: set ts=4 sw=4 et: