1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com> 5 * Copyright (c) 2011 NetApp, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 /* 30 * Copyright 2022 Oxide Computer Company 31 */ 32 33 #ifndef _VATPIT_H_ 34 #define _VATPIT_H_ 35 36 #include <x86/timerreg.h> 37 38 #define NMISC_PORT 0x61 39 40 struct vatpit *vatpit_init(struct vm *vm); 41 void vatpit_cleanup(struct vatpit *vatpit); 42 43 int vatpit_handler(void *arg, bool in, uint16_t port, uint8_t bytes, 44 uint32_t *eax); 45 int vatpit_nmisc_handler(void *arg, bool in, uint16_t port, uint8_t bytes, 46 uint32_t *eax); 47 48 void vatpit_localize_resources(struct vatpit *); 49 void vatpit_pause(struct vatpit *); 50 void vatpit_resume(struct vatpit *); 51 52 #endif /* _VATPIT_H_ */ 53