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 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 126 dkopen(struct open_file *f, ...) 127 { 128 129 DPRINTF("dkopen\n"); 130 return 0; 131 } 132 133 int 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 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 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