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tpmvar.h revision 1.4 
      1 /*	$NetBSD: tpmvar.h,v 1.4 2019/06/22 12:57:41 maxv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2019 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Maxime Villard.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 2008, 2009 Michael Shalayeff
     34  * Copyright (c) 2009, 2010 Hans-Joerg Hoexer
     35  * All rights reserved.
     36  *
     37  * Permission to use, copy, modify, and distribute this software for any
     38  * purpose with or without fee is hereby granted, provided that the above
     39  * copyright notice and this permission notice appear in all copies.
     40  *
     41  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     42  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     43  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     44  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     45  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
     46  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
     47  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     48  */
     49 
     50 #define TPM_API_VERSION		1
     51 
     52 enum tpm_version {
     53 	TPM_1_2,
     54 	TPM_2_0
     55 };
     56 
     57 struct tpm_ioc_getinfo {
     58 	uint32_t api_version;
     59 
     60 	uint32_t tpm_version;
     61 	uint32_t device_id;
     62 	uint32_t device_rev;
     63 	uint32_t device_caps;
     64 };
     65 
     66 #define TPM_IOC_GETINFO		_IOR ('N',  0, struct tpm_ioc_getinfo)
     67 
     68 #ifdef _KERNEL
     69 
     70 struct tpm_softc {
     71 	device_t sc_dev;
     72 	enum tpm_version sc_ver;
     73 	void *sc_ih;
     74 
     75 	int (*sc_init)(struct tpm_softc *, int);
     76 	int (*sc_start)(struct tpm_softc *, int);
     77 	int (*sc_read)(struct tpm_softc *, void *, size_t, size_t *, int);
     78 	int (*sc_write)(struct tpm_softc *, const void *, size_t);
     79 	int (*sc_end)(struct tpm_softc *, int, int);
     80 
     81 	bus_space_tag_t sc_bt, sc_batm;
     82 	bus_space_handle_t sc_bh, sc_bahm;
     83 
     84 	uint32_t sc_devid;
     85 	uint32_t sc_rev;
     86 	uint32_t sc_status;
     87 	uint32_t sc_capabilities;
     88 
     89 	int sc_flags;
     90 #define	TPM_OPEN	0x0001
     91 
     92 	int sc_vector;
     93 };
     94 
     95 int tpm_intr(void *);
     96 
     97 bool tpm12_suspend(device_t, const pmf_qual_t *);
     98 bool tpm12_resume(device_t, const pmf_qual_t *);
     99 
    100 int tpm_tis12_probe(bus_space_tag_t, bus_space_handle_t);
    101 int tpm_tis12_init(struct tpm_softc *, int);
    102 int tpm_tis12_start(struct tpm_softc *, int);
    103 int tpm_tis12_read(struct tpm_softc *, void *, size_t, size_t *, int);
    104 int tpm_tis12_write(struct tpm_softc *, const void *, size_t);
    105 int tpm_tis12_end(struct tpm_softc *, int, int);
    106 
    107 #endif
    108