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Annotation of sys/dev/pci/lofnvar.h, Revision 1.1.1.1

1.1       nbrk        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