xref: /netbsd-src/sys/arch/newsmips/stand/boot/devopen.c (revision a62d10165d997c1fd212c7e7f473b046c0c89c16)
1 /*	$NetBSD: devopen.c,v 1.10 2008/02/21 14:30:41 tsutsui 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 
46 int dkopen(struct open_file *, ...);
47 int dkclose(struct open_file *);
48 int dkstrategy(void *, int, daddr_t, size_t, void *, size_t *);
49 #ifdef HAVE_CHANGEDISK_HOOK
50 void changedisk_hook(struct open_file *);
51 #endif
52 
53 struct devsw devsw[] = {
54 	{ "dk", dkstrategy, dkopen, dkclose, noioctl }
55 };
56 int ndevs = __arraycount(devsw);
57 
58 struct fs_ops file_system_ufs = FS_OPS(ufs);
59 struct fs_ops file_system_nfs = FS_OPS(nfs);
60 #ifdef SUPPORT_USTARFS
61 struct fs_ops file_system_ustarfs = FS_OPS(ustarfs);
62 struct fs_ops file_system[2];
63 #else
64 struct fs_ops file_system[1];
65 #endif
66 int nfsys;
67 
68 struct romdev romdev;
69 
70 extern int apbus;
71 
72 int
devopen(struct open_file * f,const char * fname,char ** file)73 devopen(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 
125 int
dkopen(struct open_file * f,...)126 dkopen(struct open_file *f, ...)
127 {
128 
129 	DPRINTF("dkopen\n");
130 	return 0;
131 }
132 
133 int
dkclose(struct open_file * f)134 dkclose(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 
147 int
dkstrategy(void * devdata,int rw,daddr_t blk,size_t size,void * buf,size_t * rsize)148 dkstrategy(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
167 void
changedisk_hook(struct open_file * f)168 changedisk_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