1 /***************************************************************************
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
10 * Copyright (C) 2006-2007 Dave Chapman
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
18 ****************************************************************************/
25 #include <sys/types.h>
27 #include <sys/ioctl.h>
30 #if defined(linux) || defined (__linux)
31 #include <sys/mount.h>
32 #define SANSA_SECTORSIZE_IOCTL BLKSSZGET
33 #elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) \
34 || defined(__bsdi__) || defined(__DragonFly__)
36 #define SANSA_SECTORSIZE_IOCTL DIOCGSECTORSIZE
37 #elif defined(__APPLE__) && defined(__MACH__)
39 #define SANSA_SECTORSIZE_IOCTL DKIOCGETBLOCKSIZE
41 #error No sector-size detection implemented for this platform
46 #if defined(__APPLE__) && defined(__MACH__)
47 static int sansa_unmount(struct sansa_t
* sansa
)
52 sprintf(cmd
, "/usr/sbin/diskutil unmount \"%ss1\"",sansa
->diskname
);
53 fprintf(stderr
,"[INFO] ");
59 perror("Unmount failed");
67 void print_error(char* msg
)
73 int sansa_open(struct sansa_t
* sansa
, int silent
)
75 sansa
->dh
=open(sansa
->diskname
,O_RDONLY
);
77 if (!silent
) perror(sansa
->diskname
);
78 if(errno
== EACCES
) return -2;
82 if(ioctl(sansa
->dh
,SANSA_SECTORSIZE_IOCTL
,&sansa
->sector_size
) < 0) {
83 sansa
->sector_size
=512;
85 fprintf(stderr
,"[ERR] ioctl() call to get sector size failed, defaulting to %d\n"
93 int sansa_reopen_rw(struct sansa_t
* sansa
)
95 #if defined(__APPLE__) && defined(__MACH__)
96 if (sansa_unmount(sansa
) < 0)
101 sansa
->dh
=open(sansa
->diskname
,O_RDWR
);
103 perror(sansa
->diskname
);
109 int sansa_close(struct sansa_t
* sansa
)
115 int sansa_alloc_buffer(unsigned char** sectorbuf
, int bufsize
)
117 *sectorbuf
=malloc(bufsize
);
118 if (*sectorbuf
== NULL
) {
124 int sansa_seek(struct sansa_t
* sansa
, loff_t pos
)
128 res
= lseek64(sansa
->dh
, pos
, SEEK_SET
);
136 int sansa_read(struct sansa_t
* sansa
, unsigned char* buf
, int nbytes
)
138 return read(sansa
->dh
, buf
, nbytes
);
141 int sansa_write(struct sansa_t
* sansa
, unsigned char* buf
, int nbytes
)
143 return write(sansa
->dh
, buf
, nbytes
);