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/* $OpenBSD: lofnvar.h,v 1.8 2002/09/24 18:33:26 jason Exp $ */
/*
* Copyright (c) 2001-2002 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jason L. Wright
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
*/
#define LOFN_RNGBUF_SIZE 8 /* size in 32 bit elements */
struct lofn_softc {
struct device sc_dv;
void * sc_ih;
bus_space_handle_t sc_sh;
bus_space_tag_t sc_st;
bus_dma_tag_t sc_dmat;
u_int32_t sc_rngbuf[LOFN_RNGBUF_SIZE], sc_ier;
int32_t sc_cid;
union lofn_reg sc_tmp;
union lofn_reg sc_zero;
SIMPLEQ_HEAD(,lofn_q) sc_queue;
struct lofn_q *sc_current;
};
struct lofn_q {
SIMPLEQ_ENTRY(lofn_q) q_next;
int (*q_start)(struct lofn_softc *, struct lofn_q *);
void (*q_finish)(struct lofn_softc *, struct lofn_q *);
struct cryptkop *q_krp;
};
#define READ_REG(sc,r) \
bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r))
#define READ_REG_0(sc,r) READ_REG((sc), (r) | LOFN_WIN_0)
#define READ_REG_1(sc,r) READ_REG((sc), (r) | LOFN_WIN_1)
#define READ_REG_2(sc,r) READ_REG((sc), (r) | LOFN_WIN_2)
#define READ_REG_3(sc,r) READ_REG((sc), (r) | LOFN_WIN_3)
#define WRITE_REG(sc,r,v) \
bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (r), (v))
#define WRITE_REG_0(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_0, (v))
#define WRITE_REG_1(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_1, (v))
#define WRITE_REG_2(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_2, (v))
#define WRITE_REG_3(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_3, (v))
#ifndef LOFN_RNG_SCALAR
#define LOFN_RNG_SCALAR 0x00000700
#endif
/* C = M ^ E mod N */
#define LOFN_MODEXP_PAR_M 0
#define LOFN_MODEXP_PAR_E 1
#define LOFN_MODEXP_PAR_N 2
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