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e79bfcb795
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* u_os_desc.h
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*
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* Utility definitions for "OS Descriptors" support
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*
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* Copyright (c) 2014 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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*/
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#ifndef __U_OS_DESC_H__
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#define __U_OS_DESC_H__
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#include <asm/unaligned.h>
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#include <linux/nls.h>
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#define USB_EXT_PROP_DW_SIZE 0
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#define USB_EXT_PROP_DW_PROPERTY_DATA_TYPE 4
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#define USB_EXT_PROP_W_PROPERTY_NAME_LENGTH 8
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#define USB_EXT_PROP_B_PROPERTY_NAME 10
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#define USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH 10
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#define USB_EXT_PROP_B_PROPERTY_DATA 14
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#define USB_EXT_PROP_RESERVED 0
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#define USB_EXT_PROP_UNICODE 1
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#define USB_EXT_PROP_UNICODE_ENV 2
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#define USB_EXT_PROP_BINARY 3
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#define USB_EXT_PROP_LE32 4
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#define USB_EXT_PROP_BE32 5
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#define USB_EXT_PROP_UNICODE_LINK 6
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#define USB_EXT_PROP_UNICODE_MULTI 7
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static inline u8 *__usb_ext_prop_ptr(u8 *buf, size_t offset)
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{
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return buf + offset;
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}
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static inline u8 *usb_ext_prop_size_ptr(u8 *buf)
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{
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return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_SIZE);
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}
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static inline u8 *usb_ext_prop_type_ptr(u8 *buf)
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{
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return __usb_ext_prop_ptr(buf, USB_EXT_PROP_DW_PROPERTY_DATA_TYPE);
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}
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static inline u8 *usb_ext_prop_name_len_ptr(u8 *buf)
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{
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return __usb_ext_prop_ptr(buf, USB_EXT_PROP_W_PROPERTY_NAME_LENGTH);
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}
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static inline u8 *usb_ext_prop_name_ptr(u8 *buf)
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{
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return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_NAME);
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}
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static inline u8 *usb_ext_prop_data_len_ptr(u8 *buf, size_t off)
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{
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return __usb_ext_prop_ptr(buf,
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USB_EXT_PROP_DW_PROPERTY_DATA_LENGTH + off);
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}
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static inline u8 *usb_ext_prop_data_ptr(u8 *buf, size_t off)
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{
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return __usb_ext_prop_ptr(buf, USB_EXT_PROP_B_PROPERTY_DATA + off);
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}
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static inline void usb_ext_prop_put_size(u8 *buf, int dw_size)
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{
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put_unaligned_le32(dw_size, usb_ext_prop_size_ptr(buf));
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}
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static inline void usb_ext_prop_put_type(u8 *buf, int type)
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{
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put_unaligned_le32(type, usb_ext_prop_type_ptr(buf));
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}
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static inline int usb_ext_prop_put_name(u8 *buf, const char *name, int pnl)
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{
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int result;
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put_unaligned_le16(pnl, usb_ext_prop_name_len_ptr(buf));
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result = utf8s_to_utf16s(name, strlen(name), UTF16_LITTLE_ENDIAN,
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(wchar_t *) usb_ext_prop_name_ptr(buf), pnl - 2);
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if (result < 0)
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return result;
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put_unaligned_le16(0, &buf[USB_EXT_PROP_B_PROPERTY_NAME + pnl - 2]);
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return pnl;
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}
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static inline void usb_ext_prop_put_binary(u8 *buf, int pnl, const u8 *data,
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int data_len)
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{
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put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl));
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memcpy(usb_ext_prop_data_ptr(buf, pnl), data, data_len);
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}
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static inline int usb_ext_prop_put_unicode(u8 *buf, int pnl, const char *string,
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int data_len)
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{
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int result;
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put_unaligned_le32(data_len, usb_ext_prop_data_len_ptr(buf, pnl));
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result = utf8s_to_utf16s(string, data_len >> 1, UTF16_LITTLE_ENDIAN,
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(wchar_t *) usb_ext_prop_data_ptr(buf, pnl),
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data_len - 2);
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if (result < 0)
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return result;
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put_unaligned_le16(0,
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&buf[USB_EXT_PROP_B_PROPERTY_DATA + pnl + data_len - 2]);
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return data_len;
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}
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#endif /* __U_OS_DESC_H__ */
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