sys/arch/newsmips/stand/boot/devopen.c

   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
  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