xref: /dragonfly/usr.sbin/cpucontrol/via.h (revision 91dc43dd)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2011 Fabien Thomas <fabient@FreeBSD.org>.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef VIA_H
31 #define	VIA_H
32 
33 /*
34  * Prototypes.
35  */
36 ucode_probe_t	via_probe;
37 ucode_update_t	via_update;
38 
39 typedef struct via_fw_header {
40 	uint32_t	signature;		/* Signature. */
41 	int32_t		revision;		/* Unique version number. */
42 	uint32_t	date;			/* Date of creation in BCD. */
43 	uint32_t	cpu_signature;		/* Extended family, extended
44 						   model, type, family, model
45 						   and stepping. */
46 	uint32_t	checksum;		/* Sum of all DWORDS should
47 						   be 0. */
48 	uint32_t	loader_revision;	/* Version of the loader
49 						   required to load update. */
50 	uint32_t	reserverd1;		/* Platform IDs encoded in
51 						   the lower 8 bits. */
52 	uint32_t	data_size;
53 	uint32_t	total_size;
54 	uint8_t		reserved2[12];
55 } via_fw_header_t;
56 
57 typedef struct via_cpu_signature {
58 	uint32_t	cpu_signature;
59 	uint32_t	checksum;
60 } via_cpu_signature_t;
61 
62 #define VIA_HEADER_SIGNATURE	0x53415252
63 #define VIA_LOADER_REVISION	0x00000001
64 
65 #endif /* !VIA_H */
66