1/*	$NetBSD: via_padlock.h,v 1.6 2011/02/19 13:52:28 jmcneill Exp $	*/
2
3/*-
4 * Copyright (c) 2003 Jason Wright
5 * Copyright (c) 2003, 2004 Theo de Raadt
6 * All rights reserved.
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21#ifndef _X86_VIA_PADLOCK_H_
22#define _X86_VIA_PADLOCK_H_
23
24#if defined(_KERNEL)
25
26#include <sys/rnd.h>
27#include <sys/callout.h>
28#include <crypto/rijndael/rijndael.h>
29
30/* VIA C3 xcrypt-* instruction context control options */
31#define C3_CRYPT_CWLO_ROUND_M		0x0000000f
32#define C3_CRYPT_CWLO_ALG_M		0x00000070
33#define C3_CRYPT_CWLO_ALG_AES		0x00000000
34#define C3_CRYPT_CWLO_KEYGEN_M		0x00000080
35#define C3_CRYPT_CWLO_KEYGEN_HW		0x00000000
36#define C3_CRYPT_CWLO_KEYGEN_SW		0x00000080
37#define C3_CRYPT_CWLO_NORMAL		0x00000000
38#define C3_CRYPT_CWLO_INTERMEDIATE	0x00000100
39#define C3_CRYPT_CWLO_ENCRYPT		0x00000000
40#define C3_CRYPT_CWLO_DECRYPT		0x00000200
41#define C3_CRYPT_CWLO_KEY128		0x0000000a      /* 128bit, 10 rds */
42#define C3_CRYPT_CWLO_KEY192		0x0000040c      /* 192bit, 12 rds */
43#define C3_CRYPT_CWLO_KEY256		0x0000080e      /* 256bit, 15 rds */
44
45struct via_padlock_session {
46        uint32_t	ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4];	/* 128 bit aligned */
47        uint32_t	ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4];	/* 128 bit aligned */
48        uint8_t	ses_iv[16];				/* 128 bit aligned */
49        uint32_t	ses_cw0;
50        struct swcr_data	*swd;
51        int	ses_klen;
52        int	ses_used;
53};
54
55struct via_padlock_softc {
56	device_t	sc_dev;
57
58	uint32_t	op_cw[4];	/* 128 bit aligned */
59	uint8_t	op_iv[16];	/* 128 bit aligned */
60	void		*op_buf;
61
62	int			sc_rnd_hz;
63	struct callout		sc_rnd_co;
64	krndsource_t	sc_rnd_source;
65	bool			sc_rnd_attached;
66
67	/* normal softc stuff */
68	int32_t		sc_cid;
69	bool		sc_cid_attached;
70	int		sc_nsessions;
71	struct via_padlock_session *sc_sessions;
72};
73
74#define VIAC3_SESSION(sid)	((sid) & 0x0fffffff)
75#define VIAC3_SID(crd,ses)	(((crd) << 28) | ((ses) & 0x0fffffff))
76
77#define VIAC3_RNG_BUFSIZ	16
78
79#endif /* _KERNEL */
80
81#if defined(_KERNEL) || defined(_KMEMUSER)
82struct cpu_info;
83
84struct via_padlock {
85	struct cpu_info		*vp_ci;
86	int			vp_freq;
87};
88
89#endif /* _KERNEL || _KMEMUSER */
90#endif /* _X86_VIA_PADLOCK_H_ */
91