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/* $OpenBSD: devs.c,v 1.6 2006/11/16 23:12:56 deraadt Exp $ */
/*
* Copyright (c) 2006 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <libsa.h>
#include <lib/libsa/loadfile.h>
int sector;
void
machdep(void)
{
tick_init();
/* scif_init(9600); */
}
int
devopen(struct open_file *f, const char *fname, char **file)
{
if (fname[0] != 'c' || fname[1] != 'f' || fname[2] != ':')
return EINVAL;
*file = (char *)fname + 3;
f->f_flags |= F_NODEV;
f->f_dev = &devsw[0];
return (0);
}
void
devboot(dev_t bootdev, char *p)
{
sector = bootdev; /* passed from pbr */
p[0] = 'c';
p[1] = 'f';
p[2] = '\0';
}
char *
ttyname(int fd)
{
return "scif";
}
dev_t
ttydev(char *name)
{
return NODEV;
}
int
cnspeed(dev_t dev, int sp)
{
scif_init(sp);
return sp;
}
void
run_loadfile(u_long *marks, int howto)
{
u_long entry;
entry = marks[MARK_ENTRY];
cache_flush();
cache_disable();
(*(void (*)(int,int,int))entry)(howto, marks[MARK_END], 0);
}
int
blkdevopen(struct open_file *f, ...)
{
return 0;
}
int
blkdevstrategy(void *v, int flag, daddr_t dblk, size_t size, void *buf, size_t *rsize)
{
if (flag != F_READ)
return EROFS;
if (size & (DEV_BSIZE - 1))
return EINVAL;
if (rsize)
*rsize = size;
if (size != 0 && readsects(0x40, sector + dblk, buf,
size / DEV_BSIZE) != 0)
return EIO;
return 0;
}
int
blkdevclose(struct open_file *f)
{
return 0;
}
int pch_pos = 0;
void
putchar(int c)
{
switch (c) {
case '\177': /* DEL erases */
scif_putc('\b');
scif_putc(' ');
case '\b':
scif_putc('\b');
if (pch_pos)
pch_pos--;
break;
case '\t':
do
scif_putc(' ');
while (++pch_pos % 8);
break;
case '\n':
scif_putc(c);
case '\r':
scif_putc('\r');
pch_pos=0;
break;
default:
scif_putc(c);
pch_pos++;
break;
}
}
int
getchar(void)
{
int c = scif_getc();
if (c == '\r')
c = '\n';
if ((c < ' ' && c != '\n') || c == '\177')
return c;
putchar(c);
return c;
}
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