1/*	$NetBSD: devopen.c,v 1.9 2005/12/11 12:18:25 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#include <netinet/in.h>
34#include <lib/libsa/nfs.h>
35
36#include <machine/apcall.h>
37#include <machine/romcall.h>
38#include <promdev.h>
39
40#ifdef BOOT_DEBUG
41# define DPRINTF printf
42#else
43# define DPRINTF while (0) printf
44#endif
45
46int dkopen(struct open_file *, ...);
47int dkclose(struct open_file *);
48int dkstrategy(void *, int, daddr_t, size_t, void *, size_t *);
49#ifdef HAVE_CHANGEDISK_HOOK
50void changedisk_hook(struct open_file *);
51#endif
52
53struct devsw devsw[] = {
54	{ "dk", dkstrategy, dkopen, dkclose, noioctl }
55};
56int ndevs = __arraycount(devsw);
57
58struct fs_ops file_system_ufs = FS_OPS(ufs);
59struct fs_ops file_system_nfs = FS_OPS(nfs);
60#ifdef SUPPORT_USTARFS
61struct fs_ops file_system_ustarfs = FS_OPS(ustarfs);
62struct fs_ops file_system[2];
63#else
64struct fs_ops file_system[1];
65#endif
66int nfsys;
67
68struct romdev romdev;
69
70extern int apbus;
71
72int
73devopen(struct open_file *f, const char *fname, char **file)
74{
75	int fd;
76	char *cp;
77	int error = 0;
78
79	DPRINTF("devopen: %s\n", fname);
80
81	strcpy(romdev.devname, fname);
82	cp = strchr(romdev.devname, ')') + 1;
83	*cp = 0;
84	if (apbus)
85		fd = apcall_open(romdev.devname, 2);
86	else
87		fd = rom_open(romdev.devname, 2);
88
89	DPRINTF("devname = %s, fd = %d\n", romdev.devname, fd);
90	if (fd == -1)
91		return -1;
92
93	romdev.fd = fd;
94	if (strncmp(romdev.devname, "sonic", 5) == 0)
95		romdev.devtype = DT_NET;
96	else
97		romdev.devtype = DT_BLOCK;
98
99	f->f_dev = devsw;
100	f->f_devdata = &romdev;
101	*file = strchr(fname, ')') + 1;
102
103	if (romdev.devtype == DT_BLOCK) {
104		file_system[0] = file_system_ufs;
105#ifdef SUPPORT_USTARFS
106		file_system[1] = file_system_ustarfs;
107		nfsys = 2;
108#else
109		nfsys = 1;
110#endif
111	} else {	/* DT_NET */
112		file_system[0] = file_system_nfs;
113		nfsys = 1;
114
115		if ((error = net_open(&romdev)) != 0) {
116			printf("Can't open NFS network connection on `%s'\n",
117			    romdev.devname);
118			return error;
119		}
120	}
121
122	return 0;
123}
124
125int
126dkopen(struct open_file *f, ...)
127{
128
129	DPRINTF("dkopen\n");
130	return 0;
131}
132
133int
134dkclose(struct open_file *f)
135{
136	struct romdev *dev = f->f_devdata;
137
138	DPRINTF("dkclose\n");
139	if (apbus)
140		apcall_close(dev->fd);
141	else
142		rom_close(dev->fd);
143
144	return 0;
145}
146
147int
148dkstrategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf,
149    size_t *rsize)
150{
151	struct romdev *dev = devdata;
152
153	/* XXX should use partition offset */
154
155	if (apbus) {
156		apcall_lseek(dev->fd, blk * 512, 0);
157		apcall_read(dev->fd, buf, size);
158	} else {
159		rom_lseek(dev->fd, blk * 512, 0);
160		rom_read(dev->fd, buf, size);
161	}
162	*rsize = size;		/* XXX */
163	return 0;
164}
165
166#ifdef HAVE_CHANGEDISK_HOOK
167void
168changedisk_hook(struct open_file *f)
169{
170	struct romdev *dev = f->f_devdata;
171
172	if (apbus) {
173		apcall_ioctl(dev->fd, APIOCEJECT, NULL);
174		apcall_close(dev->fd);
175		getchar();
176		dev->fd = apcall_open(dev->devname, 2);
177	} else {
178		rom_ioctl(dev->fd, SYSIOCEJECT, NULL);
179		rom_close(dev->fd);
180		getchar();
181		dev->fd = rom_open(dev->devname, 2);
182	}
183}
184#endif
185