File: udf_discop.h

package info (click to toggle)
udfclient 0.8.11-1
  • links: PTS
  • area: main
  • in suites: bullseye, sid
  • size: 1,128 kB
  • sloc: ansic: 16,482; sh: 2,710; makefile: 47
file content (148 lines) | stat: -rw-r--r-- 5,558 bytes parent folder | download | duplicates (3)
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/* $NetBSD$ */

/*
 * File "udf_discop.h" is part of the UDFclient toolkit.
 * File $Id: udf_discop.h,v 1.30 2011/02/01 20:43:41 reinoud Exp $ $Name:  $
 *
 * Copyright (c) 2003, 2004, 2005, 2006, 2011
 * 	Reinoud Zandijk <reinoud@netbsd.org>
 * All rights reserved.
 *
 * The UDFclient toolkit is distributed under the Clarified Artistic Licence.
 * A copy of the licence is included in the distribution as
 * `LICENCE.clearified.artistic' and a copy of the licence can also be
 * requested at the GNU foundantion's website.
 *
 * Visit the UDFclient toolkit homepage http://www.13thmonkey.org/udftoolkit/
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */


#ifndef _UDF_DISCOP_H_
#define _UDF_DISCOP_H_


#include <pthread.h>
#include "defs.h"
#include "uscsilib.h"
#include "queue.h"

/* setup constants */
#define UDF_DISCOP_BSWAP	   1

/* Implementation constants */
#define MAX_SESSIONS		 100
#define CD_SECTOR_SIZE		2048
#define DISC_SECTOR_SIZE	 512


/* State and driver constants */
#define DISC_STATE_EMPTY		0	/* nothing on the disc	 */
#define DISC_STATE_INCOMPLETE		1	/* can be appended	 */
#define DISC_STATE_FULL			2	/* no appending possible */
#define DISC_STATE_NOT_SERIAL		3	/* not serial		 */

#define SESSION_STATE_EMPTY		0	/* still empty		 */
#define SESSION_STATE_INCOMPLETE	1	/* session is open	 */
#define SESSION_STATE_CLOSED		2	/* we need a new session */
#define SESSION_STATE_COMPLETE		3	/* no appending possible */

#define UDF_DEVDRV_CLASS		0xFF
#define UDF_DEVDRV_CLASS_FILE		0x00
#define UDF_DEVDRV_CLASS_DISC		0x01
#define UDF_DEVDRV_CLASS_CD		0x02
#define UDF_DEVDRV_CLASS_DVD		0x04
#define UDF_DEVDRV_CLASS_MO		0x08
#define UDF_DEVDRV_CLASS_BD		0x10


/* will go? */
struct udf_session;


/*
 * The complete disc, all cd sessions and how to access the drive
 */
struct udf_discinfo {
	struct uscsi_dev *dev;			/* uscsi device associated			*/

	int	 scsi_device_type;		/* in case of SCSI */
	int	 mmc_profile;			/* in case of SCSI */
	int	 devdrv_class;

	int	 sequential;			/* media is sequential writable only		*/
	int	 recordable;			/* media is record-able; i.e. not static	*/
	int	 erasable;			/* drive can erase sectors 			*/
	int	 blankable;			/* media can be blanked by the drive		*/
	int	 formattable;			/* media can be formatted by the drive		*/
	int	 rewritable;			/* media can be rewritten			*/
	int	 mrw;				/* media is identified as being MRW formatted	*/
	int	 packet;			/* media is using packet recording		*/
	int	 strict_overwrite;		/* media can only be written a packet at a time	*/
	int	 blockingnr;			/* blocking size for ECC/modification		*/

	int	 sector_size;			/* sector size in bytes				*/
	int	 alt_sector_size;		/* if non zero, override normal sectorsize	*/
	int	 link_size;			/* link size lossage when having underruns	*/
	int	 disc_state;			/* empty - incomplete - full   - not_serial	*/
	int	 last_session_state;		/* empty - incomplete - closed - complete	*/

	/* flags that alter udf_discop's behaviour */
	int	 udf_recording;			/* flags if a recording is initialised		*/
	int	 bswap_sectors;			/* swap all bytes in a sector			*/

	/* statistics */
	int		 am_writing;
	uint64_t	 sectors_read;
	uint64_t	 sectors_written;
	uint32_t	 switchings;

	/* sessions */
	int	 num_sessions;
	int	 num_udf_sessions;
	int	 session_is_UDF[MAX_SESSIONS];
	int	 session_quirks[MAX_SESSIONS];

	off_t	 session_start [MAX_SESSIONS];
	off_t	 session_end   [MAX_SESSIONS];

	uint32_t next_writable [MAX_SESSIONS];
	uint32_t free_blocks   [MAX_SESSIONS];
	uint32_t packet_size   [MAX_SESSIONS];

	STAILQ_HEAD(udf_sessions, udf_session) sessions;

	SLIST_ENTRY(udf_discinfo) next_disc;
};


/* exported functions */
extern int  udf_open_disc(char *dev_name, int discop_flags, struct udf_discinfo **discptr);
extern int  udf_close_disc(struct udf_discinfo *disc);

extern int  udf_discinfo_get_type(struct udf_discinfo *disc);
extern int  udf_discinfo_check_disc_ready(struct udf_discinfo *disc);
extern int  udf_discinfo_is_cd_or_dvd(struct udf_discinfo *disc);
extern int  udf_discinfo_set_recording_parameters(struct udf_discinfo *discinfo, int testwriting);
extern int  udf_discinfo_alter_perception(struct udf_discinfo *disc, uint32_t sec_size, uint32_t num_sectors);
extern int  udf_discinfo_finish_writing(struct udf_discinfo *discinfo);
extern int  udf_discinfo_reserve_track_in_logic_units(struct udf_discinfo *discinfo, uint32_t logic_units);
extern int  udf_discinfo_close_track(struct udf_discinfo *discinfo, uint16_t trackno);
extern int  udf_discinfo_repair_track(struct udf_discinfo *discinfo, uint16_t trackno);

extern int  udf_read_physical_sectors(struct udf_discinfo *disc, off_t sector, uint32_t num_sectors, char *what, uint8_t *result);
extern int  udf_write_physical_sectors(struct udf_discinfo *disc, off_t sector, uint32_t num_sectors, char *what, uint8_t *source);

#endif	/* _UDF_DISCOP_H_ */