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__ */