1 /* $OpenBSD: lofnvar.h,v 1.9 2003/06/02 19:08:58 jason Exp $ */ 2 3 /* 4 * Copyright (c) 2001-2002 Jason L. Wright (jason@thought.net) 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 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Effort sponsored in part by the Defense Advanced Research Projects 29 * Agency (DARPA) and Air Force Research Laboratory, Air Force 30 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 31 * 32 */ 33 34 #define LOFN_RNGBUF_SIZE 8 /* size in 32 bit elements */ 35 36 struct lofn_softc { 37 struct device sc_dv; 38 void * sc_ih; 39 bus_space_handle_t sc_sh; 40 bus_space_tag_t sc_st; 41 bus_dma_tag_t sc_dmat; 42 u_int32_t sc_rngbuf[LOFN_RNGBUF_SIZE], sc_ier; 43 int32_t sc_cid; 44 union lofn_reg sc_tmp; 45 union lofn_reg sc_zero; 46 SIMPLEQ_HEAD(,lofn_q) sc_queue; 47 struct lofn_q *sc_current; 48 }; 49 50 struct lofn_q { 51 SIMPLEQ_ENTRY(lofn_q) q_next; 52 int (*q_start)(struct lofn_softc *, struct lofn_q *); 53 void (*q_finish)(struct lofn_softc *, struct lofn_q *); 54 struct cryptkop *q_krp; 55 }; 56 57 #define READ_REG(sc,r) \ 58 bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r)) 59 #define READ_REG_0(sc,r) READ_REG((sc), (r) | LOFN_WIN_0) 60 #define READ_REG_1(sc,r) READ_REG((sc), (r) | LOFN_WIN_1) 61 #define READ_REG_2(sc,r) READ_REG((sc), (r) | LOFN_WIN_2) 62 #define READ_REG_3(sc,r) READ_REG((sc), (r) | LOFN_WIN_3) 63 64 #define WRITE_REG(sc,r,v) \ 65 bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (r), (v)) 66 #define WRITE_REG_0(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_0, (v)) 67 #define WRITE_REG_1(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_1, (v)) 68 #define WRITE_REG_2(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_2, (v)) 69 #define WRITE_REG_3(sc,r,v) WRITE_REG((sc), (r) | LOFN_WIN_3, (v)) 70 71 #ifndef LOFN_RNG_SCALAR 72 #define LOFN_RNG_SCALAR 0x00000700 73 #endif 74 75 /* C = M ^ E mod N */ 76 #define LOFN_MODEXP_PAR_M 0 77 #define LOFN_MODEXP_PAR_E 1 78 #define LOFN_MODEXP_PAR_N 2 79