nathan@0
|
1 |
/* cdrom.c
|
nathan@15
|
2 |
Copyright (c) 2000-2012 Craig Condit, Stefan Huelswitt.
|
nathan@0
|
3 |
|
nathan@0
|
4 |
Redistribution and use in source and binary forms, with or without
|
nathan@0
|
5 |
modification, are permitted provided that the following conditions are met:
|
nathan@0
|
6 |
|
nathan@0
|
7 |
1. Redistributions of source code must retain the above copyright notice,
|
nathan@0
|
8 |
this list of conditions and the following disclaimer.
|
nathan@0
|
9 |
2. Redistributions in binary form must reproduce the above copyright notice,
|
nathan@0
|
10 |
this list of conditions and the following disclaimer in the documentation
|
nathan@0
|
11 |
and/or other materials provided with the distribution.
|
nathan@0
|
12 |
|
nathan@0
|
13 |
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
|
nathan@0
|
14 |
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
nathan@0
|
15 |
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
nathan@0
|
16 |
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
|
nathan@0
|
17 |
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
nathan@0
|
18 |
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
nathan@0
|
19 |
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
nathan@0
|
20 |
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
nathan@0
|
21 |
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
nathan@0
|
22 |
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
nathan@0
|
23 |
SUCH DAMAGE.
|
nathan@0
|
24 |
*/
|
nathan@0
|
25 |
|
nathan@0
|
26 |
#define _LARGEFILE64_SOURCE
|
nathan@0
|
27 |
|
nathan@0
|
28 |
#include <stdlib.h>
|
nathan@0
|
29 |
#include <stdio.h>
|
nathan@0
|
30 |
#include <sys/ioctl.h>
|
nathan@0
|
31 |
|
nathan@4
|
32 |
#ifdef linux
|
nathan@4
|
33 |
#include <linux/fs.h>
|
nathan@4
|
34 |
#endif
|
nathan@4
|
35 |
|
nathan@2
|
36 |
#include "cdrom.h"
|
nathan@0
|
37 |
#include "misc.h"
|
nathan@2
|
38 |
#include "debug.h"
|
nathan@0
|
39 |
|
nathan@0
|
40 |
/* size of leadin/out depending of how many tracks are on cd */
|
nathan@4
|
41 |
#define LEADOUT_1 11400 /* 1th track */
|
nathan@4
|
42 |
#define LEADOUT_2 6900 /* 2nd and more tracks */
|
nathan@2
|
43 |
/* number of (unreadable) runout sectos */
|
nathan@2
|
44 |
#define RUNOUT 2
|
nathan@0
|
45 |
|
nathan@4
|
46 |
extern int fd;
|
nathan@0
|
47 |
extern int verbose;
|
nathan@0
|
48 |
extern char *prg_name;
|
nathan@0
|
49 |
|
nathan@0
|
50 |
/****************************************************************************/
|
nathan@0
|
51 |
|
nathan@2
|
52 |
void get_param(int fd, unsigned long *ahead, unsigned long *fahead)
|
nathan@2
|
53 |
{
|
nathan@2
|
54 |
#if defined(BLKRAGET) && defined(BLKFRAGET)
|
nathan@2
|
55 |
*ahead = *fahead = 0;
|
nathan@2
|
56 |
ioctl(fd,BLKRAGET,ahead);
|
nathan@2
|
57 |
ioctl(fd,BLKFRAGET,fahead);
|
nathan@2
|
58 |
DEBUG("get_param: readahead=%ld freadahead=%ld\n",*ahead,*fahead);
|
nathan@2
|
59 |
#else
|
nathan@4
|
60 |
fprintf(stderr,"Can't get readahead parameter. Ioctl's not available\n");
|
nathan@2
|
61 |
#endif
|
nathan@2
|
62 |
}
|
nathan@2
|
63 |
|
nathan@2
|
64 |
/****************************************************************************/
|
nathan@2
|
65 |
|
nathan@2
|
66 |
void set_param(int fd, unsigned long ahead, unsigned long fahead)
|
nathan@2
|
67 |
{
|
nathan@2
|
68 |
#if defined(BLKRAGET) && defined(BLKFRAGET)
|
nathan@4
|
69 |
ioctl(fd,BLKRASET,ahead);
|
nathan@4
|
70 |
ioctl(fd,BLKFRASET,fahead);
|
nathan@2
|
71 |
DEBUG("set_param: readahead=%ld freadahead=%ld\n",ahead,fahead);
|
nathan@2
|
72 |
#else
|
nathan@4
|
73 |
fprintf(stderr,"Can't set readahead parameter. Ioctl's not available\n");
|
nathan@2
|
74 |
#endif
|
nathan@2
|
75 |
}
|
nathan@2
|
76 |
|
nathan@2
|
77 |
/****************************************************************************/
|
nathan@2
|
78 |
|
nathan@4
|
79 |
int getCdHeader(struct cd_header *cd)
|
nathan@0
|
80 |
{
|
nathan@0
|
81 |
struct cdrom_tochdr cd_header;
|
nathan@0
|
82 |
struct cdrom_tocentry cd_entry;
|
nathan@4
|
83 |
int tracks;
|
nathan@4
|
84 |
|
nathan@4
|
85 |
if(ioctl(fd,CDROMREADTOCHDR,&cd_header)<0) {
|
nathan@4
|
86 |
if(verbose) fprintf(stderr,"%s: Unable to read CD header, assuming empty CD-R\n",prg_name);
|
nathan@4
|
87 |
cd->start_track=1; cd->end_track=0;
|
nathan@4
|
88 |
cd->used=0;
|
nathan@4
|
89 |
return 0;
|
nathan@0
|
90 |
}
|
nathan@0
|
91 |
|
nathan@4
|
92 |
cd->start_track=cd_header.cdth_trk0;
|
nathan@4
|
93 |
cd->end_track =cd_header.cdth_trk1;
|
nathan@4
|
94 |
tracks=cd->end_track-cd->start_track+1;
|
nathan@0
|
95 |
|
nathan@4
|
96 |
cd_entry.cdte_format=CDROM_LBA;
|
nathan@4
|
97 |
cd_entry.cdte_track=CDROM_LEADOUT;
|
nathan@4
|
98 |
if(ioctl(fd,CDROMREADTOCENTRY,&cd_entry)<0) error("Ioctl failed (lead-out)");
|
nathan@0
|
99 |
|
nathan@4
|
100 |
cd->used=cd_entry.cdte_addr.lba + (tracks==1 ? LEADOUT_1:LEADOUT_2);
|
nathan@0
|
101 |
return tracks;
|
nathan@0
|
102 |
}
|
nathan@0
|
103 |
|
nathan@0
|
104 |
/****************************************************************************/
|
nathan@0
|
105 |
|
nathan@4
|
106 |
void getCdTrack(int num, struct cd_track *cd)
|
nathan@0
|
107 |
{
|
nathan@4
|
108 |
struct cdrom_tocentry cd_entry;
|
nathan@4
|
109 |
|
nathan@4
|
110 |
cd_entry.cdte_format=CDROM_LBA;
|
nathan@4
|
111 |
cd_entry.cdte_track=num;
|
nathan@4
|
112 |
if(ioctl(fd,CDROMREADTOCENTRY,&cd_entry)<0) error("Ioctl failed (toc entry)");
|
nathan@4
|
113 |
|
nathan@4
|
114 |
cd->start_sec =cd_entry.cdte_addr.lba;
|
nathan@4
|
115 |
cd->leadout_size=RUNOUT+(num==cd->start_track ? LEADOUT_1:LEADOUT_2);
|
nathan@4
|
116 |
cd->is_data =(cd_entry.cdte_ctrl&CDROM_DATA_TRACK) ? 1:0;
|
nathan@0
|
117 |
}
|