55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/* $NetBSD: hpetvar.h,v 1.7 2020/05/08 22:01:54 ad Exp $ */
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/*
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* Copyright (c) 2006 Nicolas Joly
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_IC_HPETVAR_H_
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#define _DEV_IC_HPETVAR_H_
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#include <sys/timetc.h>
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struct hpet_softc {
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bus_size_t sc_mems;
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bus_space_tag_t sc_memt;
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bus_space_handle_t sc_memh;
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bool sc_mapped;
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uint32_t sc_config;
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int32_t sc_period;
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int64_t sc_adj;
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struct timecounter sc_tc;
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};
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void hpet_attach_subr(device_t);
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int hpet_detach(device_t, int flags);
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void hpet_delay(unsigned int);
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bool hpet_delay_p(void);
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uint64_t hpet_tsc_freq(void);
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#endif /* _DEV_IC_HPETVAR_H_ */
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