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getsecs.c revision 1.2 
      1 /*	$NetBSD: getsecs.c,v 1.2 2014/11/21 01:16:04 christos 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 
     34 #include <lib/libkern/libkern.h>
     35 #include <lib/libsa/stand.h>
     36 #include <lib/libsa/net.h>
     37 
     38 #include <dev/clock_subr.h>
     39 
     40 #include <luna68k/dev/timekeeper.h>
     41 #include <luna68k/stand/boot/samachdep.h>
     42 
     43 satime_t
     44 getsecs(void)
     45 {
     46 	volatile uint8_t *mclock;
     47 	u_int t;
     48 
     49 	mclock = (volatile uint8_t *)0x45000000;
     50 
     51 	if (machtype == LUNA_I) {
     52 		mclock += 2040;
     53 		mclock[MK_CSR] |= MK_CSR_READ;
     54 		t =  bcdtobin(mclock[MK_SEC]);
     55 		t += bcdtobin(mclock[MK_MIN]) * 60;
     56 		t += bcdtobin(mclock[MK_HOUR]) * 60 * 60;
     57 		mclock[MK_CSR] &= ~MK_CSR_READ;
     58 	} else {
     59 		while (mclock[MC_REGA] & MC_REGA_UIP)
     60 			continue;
     61 		t =  mclock[MC_SEC];
     62 		t += mclock[MC_MIN] * 60;
     63 		t += mclock[MC_HOUR] * 60 * 60;
     64 	}
     65 
     66 	return (satime_t)t;
     67 }
     68