[efi] Include installed protocol list in unknown handle names
[ipxe.git] / src / core / edd.c
1 /*
2 * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA.
18 *
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
22 */
23
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25
26 #include <errno.h>
27 #include <ipxe/interface.h>
28 #include <ipxe/edd.h>
29
30 /** @file
31 *
32 * Enhanced Disk Drive specification
33 *
34 */
35
36 /**
37 * Describe a disk device using EDD
38 *
39 * @v intf Interface
40 * @v type EDD interface type
41 * @v path EDD device path
42 * @ret rc Return status code
43 */
44 int edd_describe ( struct interface *intf, struct edd_interface_type *type,
45 union edd_device_path *path ) {
46 struct interface *dest;
47 edd_describe_TYPE ( void * ) *op =
48 intf_get_dest_op ( intf, edd_describe, &dest );
49 void *object = intf_object ( dest );
50 int rc;
51
52 if ( op ) {
53 rc = op ( object, type, path );
54 } else {
55 /* Default is to not support this operation */
56 rc = -ENOTSUP;
57 }
58
59 intf_put ( dest );
60 return rc;
61 }