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      1 /*	$NetBSD: samachdep.h,v 1.2 2023/02/12 10:04:56 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1990, 1993
      5  *	The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)samachdep.h	8.1 (Berkeley) 6/10/93
     32  */
     33 
     34 #include <sys/param.h>
     35 #include <lib/libsa/stand.h>
     36 
     37 /* boot.c */
     38 extern int entry_point;
     39 extern int cpuspeed;
     40 extern int turbo;
     41 
     42 /* en.c */
     43 int enstrategy(void *, int, daddr_t, size_t, void *, size_t *);
     44 int enopen(struct open_file *, ...);
     45 int enclose(struct open_file *);
     46 
     47 /* machdep.c */
     48 extern char *mg;
     49 
     50 /* rtc.c */
     51 void rtc_init(void);
     52 
     53 /* sd.c */
     54 int sdstrategy(void *, int, daddr_t, size_t, void *, size_t *);
     55 int sdopen(struct open_file *, ...);
     56 int sdclose(struct open_file *);
     57 
     58 /* srt0.S */
     59 __dead void _halt(void);
     60 
     61 /* vers.c (generated by sys/conf/newvers_stand.sh) */
     62 extern	char bootprog_name[], bootprog_rev[], bootprog_kernrev[];
     63 
     64 /* build.c (generated by ${.CURDIR}/newvers.sh) */
     65 extern int build;
     66 
     67 /* delay constants; note all CPU cache is turned off here */
     68 #define MHZ_25		3
     69 #define MHZ_33		4
     70 
     71 #define DELAY(n)							\
     72 do {									\
     73 	register u_int __n = (cpuspeed * (n) / 4) + 1;			\
     74 	do {								\
     75 		__asm("subql #1, %0" : "=r" (__n) : "0" (__n));		\
     76 	} while (__n > 0);						\
     77 } while (/* CONSTCOND */ 0)
     78