Better string table generation tool.

Author: mithro

examples/bulkloop/string_table.py

@@ -0,0 +1,80 @@
+#!/usr/bin/python3
+
+"""
+Generate a C file containing strings in the format needed by the USB descriptors.
+
+Put the following in your Makefile
+-------------------------------------------
+descriptors_strings.h: descriptors_string_table.py descriptors.strings
+        @python3 descriptors_string_table.py --header < descriptors.strings > descriptors_strings.h
+
+descriptors_strings.inc: descriptors_string_table.py descriptors.strings
+        @python3 descriptors_string_table.py --cfile < descriptors.strings > descriptors_strings.inc
+
+descriptors.h: date.h descriptors_strings.h
+descriptors.c: descriptors_strings.inc
+
+check-descriptors: descriptors.c
+        gcc -I../../third_party/fx2lib/include descriptors.c
+-------------------------------------------
+"""
+
+import sys
+
+strings = [x.strip() for x in sys.stdin.readlines()]
+
+if sys.argv[1] == "--header":
+	print("""\
+// This is an auto-generated file!
+#include <linux/ch9.h>
+#include <linux/ch9-extra.h>
+
+#ifndef DESCRIPTORS_STRING_TABLE_H_
+#define DESCRIPTORS_STRING_TABLE_H_
+
+struct usb_descriptors_strings {
+	struct usb_string_lang {
+		__u8 bLength;
+		__u8 bDescriptorType;
+		__le16 wData[1];
+	} language;""")
+	for i, string in enumerate(strings):
+		print("""\
+	struct usb_string_%(i)i {
+		__u8 bLength;
+		__u8 bDescriptorType;
+		__le16 wData[%(l)i];
+	} string%(i)i;""" % {'l': len(string), 'i': i})
+	print("""\
+};
+
+#endif // DESCRIPTORS_STRING_TABLE_H_
+""")
+
+if sys.argv[1] == "--cfile":
+	print("""\
+	.strings = {
+		// English language header
+		.language = {
+			.bLength = sizeof(struct usb_string_lang),
+			.bDescriptorType = USB_DT_STRING,
+			.wData = { 0x0409 }, // 0x0409 is English
+		},""")
+	for i, string in enumerate(strings):
+		d = ["((__le16)('%s'))" % s for s in string]
+
+		print("""\
+		// "%(s)s"
+		.string%(i)i = {
+			.bLength = sizeof(struct usb_string_%(i)i),
+			.bDescriptorType = USB_DT_STRING,
+			.wData = {%(d)s},
+		},""" % {
+		's': string,
+		'i': i,
+		'l': len(string),
+		'd': ", ".join(d),
+		})
+	print("""\
+	},
+""")