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getsecs.c revision 1.3 
      1 /*	$NetBSD: getsecs.c,v 1.3 2019/06/30 05:04:49 tsutsui Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2004 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 #include <machine/cpu.h>
     33 #include <machine/board.h>
     34 
     35 #include <lib/libkern/libkern.h>
     36 #include <lib/libsa/stand.h>
     37 #include <lib/libsa/net.h>
     38 
     39 #include <dev/clock_subr.h>
     40 
     41 #include <luna68k/dev/timekeeper.h>
     42 #include <luna68k/stand/boot/samachdep.h>
     43 
     44 satime_t
     45 getsecs(void)
     46 {
     47 	volatile uint8_t *mclock;
     48 	u_int t;
     49 
     50 	mclock = (volatile uint8_t *)OBIO_CLOCK_BASE;
     51 
     52 	if (machtype == LUNA_I) {
     53 		mclock += 2040;
     54 		mclock[MK_CSR] |= MK_CSR_READ;
     55 		t =  bcdtobin(mclock[MK_SEC]);
     56 		t += bcdtobin(mclock[MK_MIN]) * 60;
     57 		t += bcdtobin(mclock[MK_HOUR]) * 60 * 60;
     58 		mclock[MK_CSR] &= ~MK_CSR_READ;
     59 	} else {
     60 		while (mclock[MC_REGA] & MC_REGA_UIP)
     61 			continue;
     62 		t =  mclock[MC_SEC];
     63 		t += mclock[MC_MIN] * 60;
     64 		t += mclock[MC_HOUR] * 60 * 60;
     65 	}
     66 
     67 	return (satime_t)t;
     68 }
     69