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/*
* Copyright (c) 2011, Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __PROTOCOL_H__
#define __PROTOCOL_H__
/**
* handle_protocol - Query @handle to see if it supports @protocol
* @handle: the handle being queried
* @protocol: the GUID of the protocol
* @interface: used to return the protocol interface
*
* Query @handle to see if @protocol is supported. If it is supported,
* @interface contains the protocol interface.
*/
static inline EFI_STATUS
handle_protocol(EFI_HANDLE handle, EFI_GUID *protocol, void **interface)
{
return uefi_call_wrapper(boot->HandleProtocol, 3,
handle, protocol, interface);
}
/**
* locate_handle - Search for handles that support @protocol
* @type: the search type, which handles are returned
* @protocol: the protocol to search by (only valid if @type is ByProtocol)
* @key: the search key
* @size: on input the size in bytes of @buffer, on output the size of
* the returned array or the required size to store the array
* in @buffer if it was not large enough
* @buffer: buffere where the array of handles is returned
*/
static inline EFI_STATUS
locate_handle(EFI_LOCATE_SEARCH_TYPE type, EFI_GUID *protocol, void *key,
UINTN *size, EFI_HANDLE *buffer)
{
return uefi_call_wrapper(boot->LocateHandle, 5, type, protocol,
key, size, buffer);
}
#endif /* __PROTOCOL_H__ */
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