1/* $NetBSD: devopen.c,v 1.9 2005/12/11 12:18:25 christos 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 46int dkopen(struct open_file *, ...); 47int dkclose(struct open_file *); 48int dkstrategy(void *, int, daddr_t, size_t, void *, size_t *); 49#ifdef HAVE_CHANGEDISK_HOOK 50void changedisk_hook(struct open_file *); 51#endif 52 53struct devsw devsw[] = { 54 { "dk", dkstrategy, dkopen, dkclose, noioctl } 55}; 56int ndevs = __arraycount(devsw); 57 58struct fs_ops file_system_ufs = FS_OPS(ufs); 59struct fs_ops file_system_nfs = FS_OPS(nfs); 60#ifdef SUPPORT_USTARFS 61struct fs_ops file_system_ustarfs = FS_OPS(ustarfs); 62struct fs_ops file_system[2]; 63#else 64struct fs_ops file_system[1]; 65#endif 66int nfsys; 67 68struct romdev romdev; 69 70extern int apbus; 71 72int 73devopen(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 125int 126dkopen(struct open_file *f, ...) 127{ 128 129 DPRINTF("dkopen\n"); 130 return 0; 131} 132 133int 134dkclose(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 147int 148dkstrategy(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 167void 168changedisk_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