root/usr.sbin/cpucontrol/via.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2011 Fabien Thomas <fabient@FreeBSD.org>.
 * 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.
 *
 * 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.
 */

#ifndef VIA_H
#define VIA_H

/*
 * Prototypes.
 */
ucode_probe_t   via_probe;
ucode_update_t  via_update;

typedef struct via_fw_header {
        uint32_t        signature;              /* Signature. */
        int32_t         revision;               /* Unique version number. */
        uint32_t        date;                   /* Date of creation in BCD. */
        uint32_t        cpu_signature;          /* Extended family, extended
                                                   model, type, family, model
                                                   and stepping. */
        uint32_t        checksum;               /* Sum of all DWORDS should
                                                   be 0. */
        uint32_t        loader_revision;        /* Version of the loader
                                                   required to load update. */
        uint32_t        reserverd1;             /* Platform IDs encoded in
                                                   the lower 8 bits. */
        uint32_t        data_size;
        uint32_t        total_size;
        uint8_t         reserved2[12];
} via_fw_header_t;

typedef struct via_cpu_signature {
        uint32_t        cpu_signature;
        uint32_t        checksum;
} via_cpu_signature_t;

#define VIA_HEADER_SIGNATURE    0x53415252
#define VIA_LOADER_REVISION     0x00000001

#endif /* !VIA_H */