/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2014 Neel Natu (neel@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 unmodified, 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 _VRTC_H_
#define _VRTC_H_
#include <isa/isareg.h>
struct vrtc;
struct vm_snapshot_meta;
struct vrtc *vrtc_init(struct vm *vm);
void vrtc_cleanup(struct vrtc *vrtc);
void vrtc_reset(struct vrtc *vrtc);
time_t vrtc_get_time(struct vm *vm);
int vrtc_set_time(struct vm *vm, time_t secs);
int vrtc_nvram_write(struct vm *vm, int offset, uint8_t value);
int vrtc_nvram_read(struct vm *vm, int offset, uint8_t *retval);
int vrtc_addr_handler(struct vm *vm, bool in, int port, int bytes,
uint32_t *val);
int vrtc_data_handler(struct vm *vm, bool in, int port, int bytes,
uint32_t *val);
#ifdef BHYVE_SNAPSHOT
int vrtc_snapshot(struct vrtc *vrtc, struct vm_snapshot_meta *meta);
#endif
#endif
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