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 <asm/unaligned.h>
20 #include <linux/nls.h>
22 #define USB_EXT_PROP_DW_SIZE 0
23 #define USB_EXT_PROP_DW_PROPERTY_DATA_TYPE 4
24 #define USB_EXT_PROP_W_PROPERTY_NAME_LENGTH 8
25 #define USB_EXT_PROP_B_PROPERTY_NAME 10
26 #define USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH 10
27 #define USB_EXT_PROP_B_PROPERTY_DATA 14
29 #define USB_EXT_PROP_RESERVED 0
30 #define USB_EXT_PROP_UNICODE 1
31 #define USB_EXT_PROP_UNICODE_ENV 2
32 #define USB_EXT_PROP_BINARY 3
33 #define USB_EXT_PROP_LE32 4
34 #define USB_EXT_PROP_BE32 5
35 #define USB_EXT_PROP_UNICODE_LINK 6
36 #define USB_EXT_PROP_UNICODE_MULTI 7
38 static inline void usb_ext_prop_put_size(u8
*buf
, int dw_size
)
40 put_unaligned_le32(dw_size
, &buf
[USB_EXT_PROP_DW_SIZE
]);
43 static inline void usb_ext_prop_put_type(u8
*buf
, int type
)
45 put_unaligned_le32(type
, &buf
[USB_EXT_PROP_DW_PROPERTY_DATA_TYPE
]);
48 static inline int usb_ext_prop_put_name(u8
*buf
, const char *name
, int pnl
)
52 put_unaligned_le16(pnl
, &buf
[USB_EXT_PROP_W_PROPERTY_NAME_LENGTH
]);
53 result
= utf8s_to_utf16s(name
, strlen(name
), UTF16_LITTLE_ENDIAN
,
54 (wchar_t *) &buf
[USB_EXT_PROP_B_PROPERTY_NAME
], pnl
- 2);
58 put_unaligned_le16(0, &buf
[USB_EXT_PROP_B_PROPERTY_NAME
+ pnl
]);
63 static inline void usb_ext_prop_put_binary(u8
*buf
, int pnl
, const u8
*data
,
66 put_unaligned_le32(data_len
,
67 &buf
[USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH
+ pnl
]);
68 memcpy(&buf
[USB_EXT_PROP_B_PROPERTY_DATA
+ pnl
], data
, data_len
);
71 static inline int usb_ext_prop_put_unicode(u8
*buf
, int pnl
, const char *string
,
75 put_unaligned_le32(data_len
,
76 &buf
[USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH
+ pnl
]);
78 result
= utf8s_to_utf16s(string
, data_len
>> 1, UTF16_LITTLE_ENDIAN
,
79 (wchar_t *) &buf
[USB_EXT_PROP_B_PROPERTY_DATA
+ pnl
],
85 &buf
[USB_EXT_PROP_B_PROPERTY_DATA
+ pnl
+ data_len
]);
90 #endif /* __U_OS_DESC_H__ */