File: [local] / sys / arch / zaurus / stand / zboot / unixdev.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:50 2008 UTC (16 years, 6 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: unixdev.c,v 1.6 2007/06/16 00:26:33 deraadt Exp $ */
/*
* Copyright (c) 1996-1998 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/disklabel.h>
#include <sys/syscall.h>
#include <sys/time.h>
#define open uopen
#include <sys/fcntl.h>
#include <dev/cons.h>
#undef open
#include "disk.h"
#include "libsa.h"
#include <lib/libsa/unixdev.h>
int
unixstrategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf,
size_t *rsize)
{
int rc = 0;
off_t off;
#ifdef UNIX_DEBUG
printf("unixstrategy: %s %d bytes @ %d\n",
(rw==F_READ?"reading":"writing"), size, blk);
#endif
off = (off_t)blk * DEV_BSIZE;
if ((rc = ulseek((int)devdata, off, SEEK_SET)) >= 0)
rc = (rw==F_READ) ? uread((int)devdata, buf, size) :
uwrite((int)devdata, buf, size);
if (rc >= 0) {
*rsize = (size_t)rc;
rc = 0;
} else
rc = errno;
return rc;
}
int
unixopen(struct open_file *f, ...)
{
va_list ap;
char path[PATH_MAX];
char *cp, **file;
dev_t maj, unit, part, bsd_dev;
struct diskinfo *dip;
va_start(ap, f);
cp = *(file = va_arg(ap, char **));
va_end(ap);
#ifdef UNIX_DEBUG
if (debug)
printf("unixopen: %s\n", cp);
#endif
f->f_devdata = NULL;
/* Search for device specification. */
if (strlen(cp) < 4)
return ENOENT;
cp += 2;
if (cp[2] != ':') {
if (cp[3] != ':')
return ENOENT;
else
cp++;
}
for (maj = 0;
maj < nbdevs && strncmp(*file, bdevs[maj], cp - *file) != 0;
maj++)
;
if (maj >= nbdevs) {
printf("Unknown device: ");
for (cp = *file; *cp != ':'; cp++)
putchar(*cp);
putchar('\n');
return EADAPT;
}
/* Get unit. */
if ('0' <= *cp && *cp <= '9')
unit = *cp++ - '0';
else {
printf("Bad unit number\n");
return EUNIT;
}
/* Get partition. */
if ('a' <= *cp && *cp <= 'p')
part = *cp++ - 'a';
else {
printf("Bad partition id\n");
return EPART;
}
cp++; /* skip ':' */
if (*cp != 0)
*file = cp;
else
f->f_flags |= F_RAW;
/* Find device. */
dip = dkdevice(maj, unit);
if (dip == (struct diskinfo *)NULL)
return ENOENT;
/* Fix up bootdev. */
bsd_dev = dip->bios_info.bsd_dev;
dip->bsddev = MAKEBOOTDEV(B_TYPE(bsd_dev), B_ADAPTOR(bsd_dev),
B_CONTROLLER(bsd_dev), unit, part);
dip->bootdev = MAKEBOOTDEV(B_TYPE(bsd_dev), B_ADAPTOR(bsd_dev),
B_CONTROLLER(bsd_dev), B_UNIT(bsd_dev), part);
/* Try for disklabel again (might be removable media). */
if (dip->bios_info.flags & BDI_BADLABEL) {
const char *st = bios_getdisklabel(&dip->bios_info,
&dip->disklabel);
#ifdef UNIX_DEBUG
if (debug && st)
printf("%s\n", st);
#endif
if (!st) {
dip->bios_info.flags &= ~BDI_BADLABEL;
dip->bios_info.flags |= BDI_GOODLABEL;
} else
return ERDLAB;
}
part = bios_getdospart(&dip->bios_info);
bios_devpath(dip->bios_info.bios_number, part, path);
f->f_devdata = (void *)uopen(path, O_RDONLY);
if ((int)f->f_devdata == -1)
return errno;
return 0;
}
int
unixclose(struct open_file *f)
{
return uclose((int)f->f_devdata);
}
int
unixioctl(struct open_file *f, u_long cmd, void *data)
{
return uioctl((int)f->f_devdata, cmd, data);
}
off_t
ulseek(int fd, off_t off, int wh)
{
extern long ulseek32(int, long, int);
off_t r;
/* XXX only SEEK_SET is used, so anything else can fail for now. */
if (wh == SEEK_SET) {
if (ulseek32(fd, 0, SEEK_SET) != 0)
return -1;
while (off > OFFT_OFFSET_MAX) {
off -= OFFT_OFFSET_MAX;
if (ulseek32(fd, OFFT_OFFSET_MAX, SEEK_CUR) < 0 &&
errno != LINUX_EOVERFLOW)
return -1;
}
r = ulseek32(fd, (long)off, SEEK_CUR);
if (r == -1 && errno == LINUX_EOVERFLOW)
r = off;
} else
r = ulseek32(fd, (long)off, wh);
return r;
}
time_t
getsecs(void)
{
return (time_t)syscall(__NR_time, NULL);
}
unsigned int
sleep(unsigned int seconds)
{
unsigned int start;
start = getsecs();
while (getsecs() - start < seconds)
;
return (0);
}