1/*	$NetBSD: devopen.c,v 1.8 2005/12/11 12:18:24 christos Exp $	*/
2
3/*-
4 * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <lib/libkern/libkern.h>
30#include <lib/libsa/stand.h>
31#include <lib/libsa/ufs.h>
32#include <lib/libsa/ustarfs.h>
33
34#include <machine/romcall.h>
35
36#ifdef BOOT_DEBUG
37# define DPRINTF printf
38#else
39# define DPRINTF while (0) printf
40#endif
41
42int dkopen(struct open_file *, ...);
43int dkclose(struct open_file *);
44int dkstrategy(void *, int, daddr_t, size_t, void *, size_t *);
45
46struct devsw devsw[] = {
47	{ "dk", dkstrategy, dkopen, dkclose, noioctl }
48};
49int ndevs = __arraycount(devsw);
50
51struct fs_ops file_system[] = {
52	FS_OPS(ufs),
53	FS_OPS(ustarfs),
54};
55int nfsys = __arraycount(file_system);
56
57struct romdev {
58	int fd;
59} romdev;
60
61int
62devopen(struct open_file *f, const char *fname, char **file)
63{
64	int fd;
65	char devname[32];
66	char *cp;
67
68	DPRINTF("devopen: %s\n", fname);
69
70	strcpy(devname, fname);
71	cp = strchr(devname, ')') + 1;
72	*cp = 0;
73	fd = rom_open(devname, 0);
74
75	DPRINTF("devname = %s, fd = %d\n", devname, fd);
76	if (fd == -1)
77		return -1;
78
79	romdev.fd = fd;
80
81	f->f_dev = devsw;
82	f->f_devdata = &romdev;
83	*file = strchr(fname, ')') + 1;
84
85	return 0;
86}
87
88int
89dkopen(struct open_file *f, ...)
90{
91
92	DPRINTF("dkopen\n");
93	return 0;
94}
95
96int
97dkclose(struct open_file *f)
98{
99	struct romdev *dev = f->f_devdata;
100
101	DPRINTF("dkclose\n");
102	rom_close(dev->fd);
103	return 0;
104}
105
106int
107dkstrategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf,
108    size_t *rsize)
109{
110	struct romdev *dev = devdata;
111
112	/* XXX should use partition offset */
113
114	rom_lseek(dev->fd, blk * 512, 0);
115	rom_read(dev->fd, buf, size);
116	*rsize = size;
117	return 0;
118}
119