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_ */ 55