devopen.c revision 1.7
1 /* $NetBSD: devopen.c,v 1.7 2005/02/06 02:18:03 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 = 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(struct open_file *f, const char *fname, char **file) 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 { 135 136 DPRINTF("dkopen\n"); 137 return 0; 138 } 139 140 int 141 dkclose(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(void *devdata, int rw, daddr_t blk, size_t size, void *buf, 156 size_t *rsize) 157 { 158 struct romdev *dev = devdata; 159 160 /* XXX should use partition offset */ 161 162 if (apbus) { 163 apcall_lseek(dev->fd, blk * 512, 0); 164 apcall_read(dev->fd, buf, size); 165 } else { 166 rom_lseek(dev->fd, blk * 512, 0); 167 rom_read(dev->fd, buf, size); 168 } 169 *rsize = size; /* XXX */ 170 return 0; 171 } 172 173 #ifdef HAVE_CHANGEDISK_HOOK 174 void 175 changedisk_hook(struct open_file *f) 176 { 177 struct romdev *dev = f->f_devdata; 178 179 if (apbus) { 180 apcall_ioctl(dev->fd, APIOCEJECT, NULL); 181 apcall_close(dev->fd); 182 getchar(); 183 dev->fd = apcall_open(dev->devname, 2); 184 } else { 185 rom_ioctl(dev->fd, SYSIOCEJECT, NULL); 186 rom_close(dev->fd); 187 getchar(); 188 dev->fd = rom_open(dev->devname, 2); 189 } 190 } 191 #endif 192
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