1 /* $NetBSD: clock.h,v 1.2 2002/04/28 17:10:33 uch 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * void sh_clock_init(int flags, struct rtc_ops *): 41 * flags: 42 * SH_CLOCK_NORTC ... If SH RTC module is disabled, set this. 43 * internal module don't use RTCCLK. 44 * SH_CLOCK_NOINITTODR ... Don't initialize RTC time. 45 * rtc_ops: 46 * Machine dependent RTC ops pointer. If NULL is specified, use SH 47 * internal RTC. 48 * 49 * void machine_clock_init(void): 50 * Implement machine specific part of clock routines. 51 * must call sh_clock_init() at exit. 52 * 53 * int sh_clock_get_cpuclock(void): 54 * returns CPU clock estimated by sh_clock_init(). 55 * 56 * int sh_clock_get_pclock(void): 57 * returns PCLOCK. when PCLOCK is not specified by kernel configuration 58 * file, this value is estimated by sh_clock_init(). 59 * 60 */ 61 struct rtc_ops; 62 struct clock_ymdhms; 63 64 void sh_clock_init(int, struct rtc_ops *); 65 #define SH_CLOCK_NORTC 0x00000001 66 #define SH_CLOCK_NOINITTODR 0x00000002 67 void machine_clock_init(void); 68 69 int sh_clock_get_cpuclock(void); 70 int sh_clock_get_pclock(void); 71 72 /* 73 * SH RTC module interface. 74 */ 75 void sh_rtc_init(void *); 76 void sh_rtc_get(void *, time_t, struct clock_ymdhms *); 77 void sh_rtc_set(void *, struct clock_ymdhms *); 78 79 /* 80 * machine specific RTC ops 81 */ 82 struct clock_ymdhms; 83 struct rtc_ops { 84 void *_cookie; 85 void (*init)(void *); 86 void (*get)(void *, time_t, struct clock_ymdhms *); 87 void (*set)(void *, struct clock_ymdhms *); 88 }; 89 90