First blood

utils/create_ramdisk.py

@@ -0,0 +1,55 @@
+#
+# Create an empty file
+#     dd if=/dev/zero of=fat.fs bs=1024 count=1024
+# Format fs file
+#     sudo mkfs.fat fat.fs -g 1/1 -f 1 -s 1 -r 16 -n "USBVALVE"
+#
+# Mount the fs
+#     sudo mount fat.fs /mnt
+#
+# Now you can create a minimal set of files (AUTORUN.INF and README.TXT).
+# Place them (by manually fixing the ROOT_DIR and FATTABLE) out of the caching
+# sectors (> 100 ?)
+#
+
+import sys
+import re
+
+def all_zero(buff):
+	ret = True
+	for x in buff:
+		if x != 0:
+			ret = False
+			break
+	return ret
+
+if len(sys.argv) < 2:
+	print('Please specify input file')
+	sys.exit(1)
+
+f = open(sys.argv[1], "rb")
+
+print('uint8_t msc_disk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] = {')
+
+block = 0
+
+while True:
+	data = f.read(512)
+	if not data:
+		break
+	print('{ ')
+	print('//------------- Block %d: -------------//' % (block))
+	block += 1
+	if all_zero(data):
+		print('0x00')
+	else:
+		dump = ' '.join("0x{:02x},".format(c) for c in data)
+		dump = re.sub("(.{96})", "\\1\n", dump, 0, re.DOTALL)
+		dump = dump[:-1]     # Remove last comma
+		print(dump)
+	print('},')
+
+print('};')
+
+f.close()
+sys.exit(0)