4 * Utility definitions for "OS Descriptors" support
6 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
7 * http://www.samsung.com
9 * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #ifndef __U_OS_DESC_H__
17 #define __U_OS_DESC_H__
19 #include <linux/utf.h>
21 #define USB_EXT_PROP_DW_SIZE 0
22 #define USB_EXT_PROP_DW_PROPERTY_DATA_TYPE 4
23 #define USB_EXT_PROP_W_PROPERTY_NAME_LENGTH 8
24 #define USB_EXT_PROP_B_PROPERTY_NAME 10
25 #define USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH 10
26 #define USB_EXT_PROP_B_PROPERTY_DATA 14
28 #define USB_EXT_PROP_RESERVED 0
29 #define USB_EXT_PROP_UNICODE 1
30 #define USB_EXT_PROP_UNICODE_ENV 2
31 #define USB_EXT_PROP_BINARY 3
32 #define USB_EXT_PROP_LE32 4
33 #define USB_EXT_PROP_BE32 5
34 #define USB_EXT_PROP_UNICODE_LINK 6
35 #define USB_EXT_PROP_UNICODE_MULTI 7
37 static inline u8 *__usb_ext_prop_ptr(u8 *buf, size_t offset)
42 static inline u8 *usb_ext_prop_size_ptr(u8 *buf)
44 return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_SIZE);
47 static inline u8 *usb_ext_prop_type_ptr(u8 *buf)
49 return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_PROPERTY_DATA_TYPE);
52 static inline u8 *usb_ext_prop_name_len_ptr(u8 *buf)
54 return __usb_ext_prop_ptr(buf, USB_EXT_PROP_W_PROPERTY_NAME_LENGTH);
57 static inline u8 *usb_ext_prop_name_ptr(u8 *buf)
59 return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_NAME);
62 static inline u8 *usb_ext_prop_data_len_ptr(u8 *buf, size_t off)
64 return __usb_ext_prop_ptr(buf,
65 USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH + off);
68 static inline u8 *usb_ext_prop_data_ptr(u8 *buf, size_t off)
70 return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_DATA + off);
73 static inline void usb_ext_prop_put_size(u8 *buf, int dw_size)
75 put_unaligned_le32(dw_size, usb_ext_prop_size_ptr(buf));
78 static inline void usb_ext_prop_put_type(u8 *buf, int type)
80 put_unaligned_le32(type, usb_ext_prop_type_ptr(buf));
83 static inline int usb_ext_prop_put_name(u8 *buf, const char *name, int pnl)
87 put_unaligned_le16(pnl, usb_ext_prop_name_len_ptr(buf));
88 memset(usb_ext_prop_name_ptr(buf), 0, 2 * strlen(name));
89 result = utf8_to_utf16le(name, (__le16 *)usb_ext_prop_name_ptr(buf),
94 put_unaligned_le16(0, &buf[USB_EXT_PROP_B_PROPERTY_NAME + pnl - 2]);
99 static inline void usb_ext_prop_put_binary(u8 *buf, int pnl, const char *data,
102 put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl));
103 memcpy(usb_ext_prop_data_ptr(buf, pnl), data, data_len);
106 static inline int usb_ext_prop_put_unicode(u8 *buf, int pnl, const char *string,
110 put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl));
111 memset(usb_ext_prop_data_ptr(buf, pnl), 0, 2 * (data_len >> 1));
112 result = utf8_to_utf16le(string, (__le16 *) usb_ext_prop_data_ptr(buf, pnl),
117 put_unaligned_le16(0,
118 &buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl + data_len - 2]);
123 #endif /* __U_OS_DESC_H__ */