devopen.c revision 1.6
1 /* $NetBSD: devopen.c,v 1.6 2003/11/21 19:44:53 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 __P((struct open_file *, ...)); 47 int dkclose __P((struct open_file *)); 48 int dkstrategy __P((void *, int, daddr_t, size_t, void *, size_t *)); 49 #ifdef HAVE_CHANGEDISK_HOOK 50 void changedisk_hook __P((struct open_file *)); 51 #endif 52 53 struct devsw devsw[] = { 54 { "dk", dkstrategy, dkopen, dkclose, noioctl } 55 }; 56 int ndevs = sizeof(devsw) / sizeof(devsw[0]); 57 58 struct fs_ops file_system_ufs = { 59 ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat 60 }; 61 struct fs_ops file_system_nfs = { 62 nfs_open, nfs_close, nfs_read, nfs_write, nfs_seek, nfs_stat 63 }; 64 #ifdef SUPPORT_USTARFS 65 struct fs_ops file_system_ustarfs = { 66 ustarfs_open, ustarfs_close, ustarfs_read, ustarfs_write, 67 ustarfs_seek, ustarfs_stat 68 }; 69 struct fs_ops file_system[2]; 70 #else 71 struct fs_ops file_system[1]; 72 #endif 73 int nfsys; 74 75 struct romdev romdev; 76 77 extern int apbus; 78 79 int 80 devopen(f, fname, file) 81 struct open_file *f; 82 const char *fname; 83 char **file; /* out */ 84 { 85 int fd; 86 char *cp; 87 int error = 0; 88 89 DPRINTF("devopen: %s\n", fname); 90 91 strcpy(romdev.devname, fname); 92 cp = strchr(romdev.devname, ')') + 1; 93 *cp = 0; 94 if (apbus) 95 fd = apcall_open(romdev.devname, 2); 96 else 97 fd = rom_open(romdev.devname, 2); 98 99 DPRINTF("devname = %s, fd = %d\n", romdev.devname, fd); 100 if (fd == -1) 101 return -1; 102 103 romdev.fd = fd; 104 if (strncmp(romdev.devname, "sonic", 5) == 0) 105 romdev.devtype = DT_NET; 106 else 107 romdev.devtype = DT_BLOCK; 108 109 f->f_dev = devsw; 110 f->f_devdata = &romdev; 111 *file = strchr(fname, ')') + 1; 112 113 if (romdev.devtype == DT_BLOCK) { 114 file_system[0] = file_system_ufs; 115 #ifdef SUPPORT_USTARFS 116 file_system[1] = file_system_ustarfs; 117 nfsys = 2; 118 #else 119 nfsys = 1; 120 #endif 121 } else { /* DT_NET */ 122 file_system[0] = file_system_nfs; 123 nfsys = 1; 124 125 if ((error = net_open(&romdev)) != 0) { 126 printf("Can't open NFS network connection on `%s'\n", 127 romdev.devname); 128 return error; 129 } 130 } 131 132 return 0; 133 } 134 135 int 136 dkopen(struct open_file *f, ...) 137 { 138 DPRINTF("dkopen\n"); 139 return 0; 140 } 141 142 int 143 dkclose(f) 144 struct open_file *f; 145 { 146 struct romdev *dev = f->f_devdata; 147 148 DPRINTF("dkclose\n"); 149 if (apbus) 150 apcall_close(dev->fd); 151 else 152 rom_close(dev->fd); 153 154 return 0; 155 } 156 157 int 158 dkstrategy(devdata, rw, blk, size, buf, rsize) 159 void *devdata; 160 int rw; 161 daddr_t blk; 162 size_t size; 163 void *buf; 164 size_t *rsize; /* out: number of bytes transfered */ 165 { 166 struct romdev *dev = devdata; 167 168 /* XXX should use partition offset */ 169 170 if (apbus) { 171 apcall_lseek(dev->fd, blk * 512, 0); 172 apcall_read(dev->fd, buf, size); 173 } else { 174 rom_lseek(dev->fd, blk * 512, 0); 175 rom_read(dev->fd, buf, size); 176 } 177 *rsize = size; /* XXX */ 178 return 0; 179 } 180 181 #ifdef HAVE_CHANGEDISK_HOOK 182 void 183 changedisk_hook(f) 184 struct open_file *f; 185 { 186 struct romdev *dev = f->f_devdata; 187 188 if (apbus) { 189 apcall_ioctl(dev->fd, APIOCEJECT, NULL); 190 apcall_close(dev->fd); 191 getchar(); 192 dev->fd = apcall_open(dev->devname, 2); 193 } else { 194 rom_ioctl(dev->fd, SYSIOCEJECT, NULL); 195 rom_close(dev->fd); 196 getchar(); 197 dev->fd = rom_open(dev->devname, 2); 198 } 199 200 } 201 #endif 202
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