devopen.c revision 1.4
1 /* $NetBSD: devopen.c,v 1.4 2002/04/30 01:14:39 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(x) printf x 42 #else 43 # define DPRINTF(x) 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 50 struct devsw devsw[] = { 51 { "dk", dkstrategy, dkopen, dkclose, noioctl } 52 }; 53 int ndevs = sizeof(devsw) / sizeof(devsw[0]); 54 55 struct fs_ops file_system_ufs = { 56 ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat 57 }; 58 struct fs_ops file_system_nfs = { 59 nfs_open, nfs_close, nfs_read, nfs_write, nfs_seek, nfs_stat 60 }; 61 #ifdef SUPPORT_USTARFS 62 struct fs_ops file_system_ustarfs = { 63 ustarfs_open, ustarfs_close, ustarfs_read, ustarfs_write, 64 ustarfs_seek, ustarfs_stat 65 }; 66 struct fs_ops file_system[2]; 67 #else 68 struct fs_ops file_system[1]; 69 #endif 70 int nfsys; 71 72 struct romdev romdev; 73 74 extern int apbus; 75 76 int 77 devopen(f, fname, file) 78 struct open_file *f; 79 const char *fname; 80 char **file; /* out */ 81 { 82 int fd; 83 char *cp; 84 int error = 0; 85 86 DPRINTF(("devopen: %s\n", fname)); 87 88 strcpy(romdev.devname, fname); 89 cp = strchr(romdev.devname, ')') + 1; 90 *cp = 0; 91 if (apbus) 92 fd = apcall_open(romdev.devname, 2); 93 else 94 fd = rom_open(romdev.devname, 2); 95 96 DPRINTF(("devname = %s, fd = %d\n", romdev.devname, fd)); 97 if (fd == -1) 98 return -1; 99 100 romdev.fd = fd; 101 if (strncmp(romdev.devname, "sonic", 5) == 0) 102 romdev.devtype = DT_NET; 103 else 104 romdev.devtype = DT_BLOCK; 105 106 f->f_dev = devsw; 107 f->f_devdata = &romdev; 108 *file = strchr(fname, ')') + 1; 109 110 if (romdev.devtype == DT_BLOCK) { 111 file_system[0] = file_system_ufs; 112 #ifdef SUPPORT_USTARFS 113 file_system[1] = file_system_ustarfs; 114 nfsys = 2; 115 #else 116 nfsys = 1; 117 #endif 118 } else { /* DT_NET */ 119 file_system[0] = file_system_nfs; 120 nfsys = 1; 121 122 if ((error = net_open(&romdev)) != 0) { 123 printf("Can't open NFS network connection on `%s'\n", 124 romdev.devname); 125 return error; 126 } 127 } 128 129 return 0; 130 } 131 132 int 133 dkopen(struct open_file *f, ...) 134 { 135 DPRINTF(("dkopen\n")); 136 return 0; 137 } 138 139 int 140 dkclose(f) 141 struct open_file *f; 142 { 143 struct romdev *dev = f->f_devdata; 144 145 DPRINTF(("dkclose\n")); 146 if (apbus) 147 apcall_close(dev->fd); 148 else 149 rom_close(dev->fd); 150 151 return 0; 152 } 153 154 int 155 dkstrategy(devdata, rw, blk, size, buf, rsize) 156 void *devdata; 157 int rw; 158 daddr_t blk; 159 size_t size; 160 void *buf; 161 size_t *rsize; /* out: number of bytes transfered */ 162 { 163 struct romdev *dev = devdata; 164 165 /* XXX should use partition offset */ 166 167 if (apbus) { 168 apcall_lseek(dev->fd, blk * 512, 0); 169 apcall_read(dev->fd, buf, size); 170 } else { 171 rom_lseek(dev->fd, blk * 512, 0); 172 rom_read(dev->fd, buf, size); 173 } 174 *rsize = size; /* XXX */ 175 return 0; 176 } 177 178 #ifdef HAVE_CHANGEDISK_HOOK 179 void 180 changedisk_hook(f) 181 struct open_file *f; 182 { 183 struct romdev *dev = f->f_devdata; 184 185 if (apbus) { 186 apcall_ioctl(dev->fd, APIOCEJECT, NULL); 187 apcall_close(dev->fd); 188 getchar(); 189 dev->fd = apcall_open(dev->devname, 2); 190 } else { 191 rom_ioctl(dev->fd, SYSIOCEJECT, NULL); 192 rom_close(dev->fd); 193 getchar(); 194 dev->fd = rom_open(dev->devname, 2); 195 } 196 197 } 198 #endif 199
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