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      1 /*	$NetBSD: clock.h,v 1.5 2020/07/11 03:53:32 uwe Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * void sh_clock_init(int flags):
     34  *   flags:
     35  *	SH_CLOCK_NORTC		... If SH RTC module is disabled, set this.
     36  *				    internal module don't use RTCCLK.
     37  *	SH_CLOCK_NOINITTODR	... Don't initialize RTC time.
     38  *
     39  * void machine_clock_init(void):
     40  *	Implement machine specific part of clock routines.
     41  *	must call sh_clock_init() at exit.
     42  *
     43  * int sh_clock_get_cpuclock(void):
     44  *	returns CPU clock estimated by sh_clock_init().
     45  *
     46  * int sh_clock_get_pclock(void):
     47  *	returns PCLOCK. when PCLOCK is not specified by kernel configuration
     48  *	file, this value is estimated by sh_clock_init().
     49  *
     50  */
     51 #ifndef _SH3_CLOCK_H_
     52 #define _SH3_CLOCK_H_
     53 
     54 void machine_clock_init(void);
     55 
     56 void sh_clock_init(int);
     57 #define	SH_CLOCK_NORTC			0x00000001
     58 #define	SH_CLOCK_NOINITTODR		0x00000002
     59 
     60 int sh_clock_get_cpuclock(void);
     61 int sh_clock_get_pclock(void);
     62 
     63 #endif /* _SH3_CLOCK_H_ */
     64