1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* ucdrom.h. Uniform cdrom data structures for cdrom.c. -*- linux-c -*-
Copyright (c) 1996 David van Leeuwen.
*/
#ifndef LINUX_UCDROM_H
#define LINUX_UCDROM_H
#ifdef __KERNEL__
struct cdrom_device_ops {
/* routines */
int (*open) (kdev_t, int);
void (*release) (kdev_t);
int (*open_files) (kdev_t); /* number of open files */
int (*drive_status) (kdev_t);
int (*disc_status) (kdev_t);
int (*media_changed) (kdev_t);
int (*tray_move) (kdev_t, int);
int (*lock_door) (kdev_t, int);
int (*select_speed) (kdev_t, int);
int (*select_disc) (kdev_t, int);
int (*get_last_session) (kdev_t, struct cdrom_multisession *);
int (*get_mcn) (kdev_t, struct cdrom_mcn *);
int (*reset) (kdev_t dev); /* hard reset device */
int (*audio_ioctl) (kdev_t, unsigned int, void *); /* play stuff */
int (*dev_ioctl) (kdev_t, unsigned int, unsigned long); /* dev-specific */
/* specifications */
const int capability; /* capability flags */
int mask; /* mask of capability: disables them */
const int speed; /* maximum speed for reading data */
const int minors; /* number of minor devs supported */
const int capacity; /* number of discs in jukebox */
/* device-related storage */
int options; /* options flags */
long mc_flags; /* media change buffer flags (2*16) */
};
#endif
/* capability flags */
#define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */
#define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */
#define CDC_LOCK 0x4 /* disable manual eject */
#define CDC_SELECT_SPEED 0x8 /* programmable speed */
#define CDC_SELECT_DISC 0x10 /* select disc from juke-box */
#define CDC_MULTI_SESSION 0x20 /* read sessions>1 */
#define CDC_MCN 0x40 /* Medium Catalog Number */
#define CDC_MEDIA_CHANGED 0x80 /* media changed */
#define CDC_PLAY_AUDIO 0x100 /* audio functions */
/* drive status possibilities */
#define CDS_NO_INFO 0 /* if not implemented */
#define CDS_NO_DISC 1
#define CDS_TRAY_OPEN 2
#define CDS_DRIVE_NOT_READY 3
#define CDS_DISC_OK 4
/* disc status possibilities, other than CDS_NO_DISC */
#define CDS_AUDIO 100
#define CDS_DATA_1 101
#define CDS_DATA_2 102
#define CDS_XA_2_1 103
#define CDS_XA_2_2 104
/* User-configurable behavior options */
#define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */
#define CDO_AUTO_EJECT 0x2 /* open tray on last release() */
#define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */
#define CDO_LOCK 0x8 /* lock tray on open files */
#define CDO_CHECK_TYPE 0x10 /* check type on open for data */
/* Some more ioctls to control these options */
#define CDROM_SET_OPTIONS 0x5320
#define CDROM_CLEAR_OPTIONS 0x5321
#define CDROM_SELECT_SPEED 0x5322 /* head-speed */
#define CDROM_SELECT_DISC 0x5323 /* for juke-boxes */
#define CDROM_MEDIA_CHANGED 0x5325
#define CDROM_DRIVE_STATUS 0x5326 /* tray position, etc. */
#define CDROM_DISC_STATUS 0x5327 /* disc type etc. */
/* Rename an old ioctl */
#define CDROM_GET_MCN CDROM_GET_UPC /* medium catalog number */
#ifdef __KERNEL__
/* the general file operations structure: */
extern struct file_operations cdrom_fops;
extern int register_cdrom(int major, char *name,
struct cdrom_device_ops *cdo);
extern int unregister_cdrom(int major, char *name);
#endif
#endif /* LINUX_UCDROM_H */
/*
* Local variables:
* comment-column: 40
* End:
*/
|
