FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/hpetvar.h
1 /* $NetBSD: hpetvar.h,v 1.7 2020/05/08 22:01:54 ad Exp $ */
2
3 /*
4 * Copyright (c) 2006 Nicolas Joly
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 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #ifndef _DEV_IC_HPETVAR_H_
32 #define _DEV_IC_HPETVAR_H_
33
34 #include <sys/timetc.h>
35
36 struct hpet_softc {
37 bus_size_t sc_mems;
38 bus_space_tag_t sc_memt;
39 bus_space_handle_t sc_memh;
40
41 bool sc_mapped;
42 uint32_t sc_config;
43 int32_t sc_period;
44 int64_t sc_adj;
45 struct timecounter sc_tc;
46 };
47
48 void hpet_attach_subr(device_t);
49 int hpet_detach(device_t, int flags);
50 void hpet_delay(unsigned int);
51 bool hpet_delay_p(void);
52 uint64_t hpet_tsc_freq(void);
53
54 #endif /* _DEV_IC_HPETVAR_H_ */
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