/*      $NetBSD: devopen.c,v 1.10 2008/02/21 14:30:41 tsutsui Exp $     */

/*-
 * Copyright (C) 1999 Tsubai Masanari.  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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * 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 AUTHOR 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 <lib/libkern/libkern.h>
#include <lib/libsa/stand.h>
#include <lib/libsa/ufs.h>
#include <lib/libsa/ustarfs.h>
#include <netinet/in.h>
#include <lib/libsa/nfs.h>

#include <machine/apcall.h>
#include <machine/romcall.h>
#include <promdev.h>

#ifdef BOOT_DEBUG
# define DPRINTF printf
#else
# define DPRINTF while (0) printf
#endif

int dkopen(struct open_file *, ...);
int dkclose(struct open_file *);
int dkstrategy(void *, int, daddr_t, size_t, void *, size_t *);
#ifdef HAVE_CHANGEDISK_HOOK
void changedisk_hook(struct open_file *);
#endif

struct devsw devsw[] = {
        { "dk", dkstrategy, dkopen, dkclose, noioctl }
};
int ndevs = __arraycount(devsw);

struct fs_ops file_system_ufs = FS_OPS(ufs);
struct fs_ops file_system_nfs = FS_OPS(nfs);
#ifdef SUPPORT_USTARFS
struct fs_ops file_system_ustarfs = FS_OPS(ustarfs);
struct fs_ops file_system[2];
#else
struct fs_ops file_system[1];
#endif
int nfsys;

struct romdev romdev;

extern int apbus;

int
devopen(struct open_file *f, const char *fname, char **file)
{
        int fd;
        char *cp;
        int error = 0;

        DPRINTF("devopen: %s\n", fname);

        strcpy(romdev.devname, fname);
        cp = strchr(romdev.devname, ')') + 1;
        *cp = 0;
        if (apbus)
                fd = apcall_open(romdev.devname, 2);
        else
                fd = rom_open(romdev.devname, 2);

        DPRINTF("devname = %s, fd = %d\n", romdev.devname, fd);
        if (fd == -1)
                return -1;

        romdev.fd = fd;
        if (strncmp(romdev.devname, "sonic", 5) == 0)
                romdev.devtype = DT_NET;
        else
                romdev.devtype = DT_BLOCK;

        f->f_dev = devsw;
        f->f_devdata = &romdev;
        *file = strchr(fname, ')') + 1;

        if (romdev.devtype == DT_BLOCK) {
                file_system[0] = file_system_ufs;
#ifdef SUPPORT_USTARFS
                file_system[1] = file_system_ustarfs;
                nfsys = 2;
#else
                nfsys = 1;
#endif
        } else {        /* DT_NET */
                file_system[0] = file_system_nfs;
                nfsys = 1;

                if ((error = net_open(&romdev)) != 0) {
                        printf("Can't open NFS network connection on `%s'\n",
                            romdev.devname);
                        return error;
                }
        }

        return 0;
}

int
dkopen(struct open_file *f, ...)
{

        DPRINTF("dkopen\n");
        return 0;
}

int
dkclose(struct open_file *f)
{
        struct romdev *dev = f->f_devdata;

        DPRINTF("dkclose\n");
        if (apbus)
                apcall_close(dev->fd);
        else
                rom_close(dev->fd);

        return 0;
}

int
dkstrategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf,
    size_t *rsize)
{
        struct romdev *dev = devdata;

        /* XXX should use partition offset */

        if (apbus) {
                apcall_lseek(dev->fd, blk * 512, 0);
                apcall_read(dev->fd, buf, size);
        } else {
                rom_lseek(dev->fd, blk * 512, 0);
                rom_read(dev->fd, buf, size);
        }
        *rsize = size;          /* XXX */
        return 0;
}

#ifdef HAVE_CHANGEDISK_HOOK
void
changedisk_hook(struct open_file *f)
{
        struct romdev *dev = f->f_devdata;

        if (apbus) {
                apcall_ioctl(dev->fd, APIOCEJECT, NULL);
                apcall_close(dev->fd);
                getchar();
                dev->fd = apcall_open(dev->devname, 2);
        } else {
                rom_ioctl(dev->fd, SYSIOCEJECT, NULL);
                rom_close(dev->fd);
                getchar();
                dev->fd = rom_open(dev->devname, 2);
        }
}
#endif