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stand_user.c revision 1.1 
      1 /*	$NetBSD: stand_user.c,v 1.1 1998/05/15 17:07:17 drochner Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998
      5  *	Matthias Drochner.  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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed for the NetBSD Project
     18  *	by Matthias Drochner.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 #include <lib/libsa/stand.h>
     36 
     37 #include "sanamespace.h"
     38 
     39 #include <stdio.h>
     40 #include <unistd.h>
     41 #include <stdlib.h>
     42 #include <stdarg.h>
     43 #include <sys/time.h>
     44 #include <fcntl.h>
     45 #include <sys/mman.h>
     46 #include <machine/sysarch.h>
     47 #include <err.h>
     48 
     49 /*
     50  * Harness for test of standalone code in user space.
     51  * XXX Requires silly namespace games.
     52  */
     53 
     54 #ifndef HEAPSIZE
     55 #define HEAPSIZE (128*1024)
     56 #endif
     57 
     58 int samain __P((void));
     59 
     60 int
     61 main()
     62 {
     63 	char *h = malloc(HEAPSIZE);
     64 	setheap(h, h + HEAPSIZE);
     65 
     66 	return (samain());
     67 }
     68 
     69 void
     70 _rtt()
     71 {
     72 	warnx("_rtt called");
     73 	_exit(1);
     74 }
     75 
     76 int
     77 getsecs()
     78 {
     79 	struct timeval t;
     80 	gettimeofday(&t, 0);
     81 	return (t.tv_sec);
     82 }
     83 
     84 void
     85 delay(t)
     86 	int t;
     87 {
     88 	struct timeval to;
     89 	to.tv_sec = 0;
     90 	to.tv_usec = t;
     91 	select(0, 0, 0, 0, &to);
     92 }
     93 
     94 /* make output appear unbuffered */
     95 void
     96 saputchar(c)
     97 	int c;
     98 {
     99 	putchar(c);
    100 	fflush(stdout);
    101 }
    102 
    103 /*
    104  * some functions to get access to the hardware
    105  */
    106 
    107 static int memfd, memcnt;
    108 
    109 caddr_t
    110 mapmem(offset, len)
    111 	int offset, len;
    112 {
    113 	caddr_t base;
    114 
    115 	if (memcnt == 0)
    116 		memfd = open("/dev/mem", O_RDWR, 0);
    117 	if (memfd < 0) {
    118 		warn("open /dev/mem");
    119 		return (0);
    120 	}
    121 	base = mmap(0, len, PROT_READ | PROT_WRITE, MAP_SHARED,
    122 		    memfd, offset);
    123 	if (base == (caddr_t)-1) {
    124 		warn("mmap %x-%x", offset, offset + len - 1);
    125 		return (0);
    126 	}
    127 	memcnt++;
    128 	return (base);
    129 }
    130 
    131 void
    132 unmapmem(addr, len)
    133 	caddr_t addr;
    134 	int len;
    135 {
    136 	munmap(addr, len);
    137 	memcnt--;
    138 	if (memcnt == 0)
    139 		close(memfd);
    140 }
    141 
    142 int
    143 mapio()
    144 {
    145 	int res;
    146 
    147 	res = i386_iopl(1);
    148 	if (res)
    149 		warn("i386_iopl");
    150 	return (res);
    151 }
    152