1 /* $OpenBSD: nofnvar.h,v 1.6 2003/06/02 19:08:58 jason Exp $ */ 2 3 /* 4 * Copyright (c) 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 struct nofn_softc { 35 struct device sc_dev; 36 void *sc_ih; 37 bus_space_handle_t sc_sh; 38 bus_space_tag_t sc_st; 39 bus_space_handle_t sc_pk_h; 40 bus_space_tag_t sc_pk_t; 41 bus_dma_tag_t sc_dmat; 42 int32_t sc_cid; 43 int sc_flags; 44 int sc_rngskip, sc_rngtick; 45 struct timeout sc_rngto; 46 u_int32_t sc_intrmask, sc_revid; 47 SIMPLEQ_HEAD(,nofn_pk_q) sc_pk_queue; 48 struct nofn_pk_q *sc_pk_current; 49 union nofn_pk_reg sc_pk_tmp, sc_pk_zero; 50 }; 51 52 struct nofn_pk_q { 53 SIMPLEQ_ENTRY(nofn_pk_q) q_next; 54 int (*q_start)(struct nofn_softc *, struct nofn_pk_q *); 55 void (*q_finish)(struct nofn_softc *, struct nofn_pk_q *); 56 struct cryptkop *q_krp; 57 }; 58 59 #define NOFN_FLAGS_RNG 0x01 60 #define NOFN_FLAGS_PK 0x02 61 62 #define REG_WRITE_4(sc,r,v) \ 63 bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (r), (v)) 64 #define REG_READ_4(sc,r) \ 65 bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r)) 66 67 #define PK_WRITE_4(sc,r,v) \ 68 bus_space_write_4((sc)->sc_pk_t, (sc)->sc_pk_h, (r), (v)) 69 #define PK_READ_4(sc,r) \ 70 bus_space_read_4((sc)->sc_pk_t, (sc)->sc_pk_h, (r)) 71 72 #ifndef PK_RNC_SCALER 73 #define PK_RNC_SCALER 0x00000700 74 #endif 75 76 /* C = M ^ E mod N */ 77 #define NOFN_MODEXP_PAR_M 0 78 #define NOFN_MODEXP_PAR_E 1 79 #define NOFN_MODEXP_PAR_N 2 80