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/* $OpenBSD: nofnvar.h,v 1.6 2003/06/02 19:08:58 jason Exp $ */
/*
* Copyright (c) 2002 Jason L. Wright (jason@thought.net)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 AUTHOR ``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 AUTHOR 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.
*
* Effort sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F30602-01-2-0537.
*
*/
struct nofn_softc {
struct device sc_dev;
void *sc_ih;
bus_space_handle_t sc_sh;
bus_space_tag_t sc_st;
bus_space_handle_t sc_pk_h;
bus_space_tag_t sc_pk_t;
bus_dma_tag_t sc_dmat;
int32_t sc_cid;
int sc_flags;
int sc_rngskip, sc_rngtick;
struct timeout sc_rngto;
u_int32_t sc_intrmask, sc_revid;
SIMPLEQ_HEAD(,nofn_pk_q) sc_pk_queue;
struct nofn_pk_q *sc_pk_current;
union nofn_pk_reg sc_pk_tmp, sc_pk_zero;
};
struct nofn_pk_q {
SIMPLEQ_ENTRY(nofn_pk_q) q_next;
int (*q_start)(struct nofn_softc *, struct nofn_pk_q *);
void (*q_finish)(struct nofn_softc *, struct nofn_pk_q *);
struct cryptkop *q_krp;
};
#define NOFN_FLAGS_RNG 0x01
#define NOFN_FLAGS_PK 0x02
#define REG_WRITE_4(sc,r,v) \
bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (r), (v))
#define REG_READ_4(sc,r) \
bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r))
#define PK_WRITE_4(sc,r,v) \
bus_space_write_4((sc)->sc_pk_t, (sc)->sc_pk_h, (r), (v))
#define PK_READ_4(sc,r) \
bus_space_read_4((sc)->sc_pk_t, (sc)->sc_pk_h, (r))
#ifndef PK_RNC_SCALER
#define PK_RNC_SCALER 0x00000700
#endif
/* C = M ^ E mod N */
#define NOFN_MODEXP_PAR_M 0
#define NOFN_MODEXP_PAR_E 1
#define NOFN_MODEXP_PAR_N 2
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