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libburn/libburn/libburn.h

1969 lines
78 KiB

16 years ago
/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
#ifndef LIBBURN_H
#define LIBBURN_H
/* Needed for off_t which is the (POSIX-ly) appropriate type for
expressing a file or stream size.
XXX we should enforce 64-bitness for off_t
ts A61101 : this is usually done by the build system (if it is not broken)
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*/
#include <sys/types.h>
#ifndef DOXYGEN
#if defined(__cplusplus)
#define BURN_BEGIN_DECLS \
namespace burn { \
extern "C" {
#define BURN_END_DECLS \
} \
}
#else
#define BURN_BEGIN_DECLS
#define BURN_END_DECLS
#endif
BURN_BEGIN_DECLS
#endif
/** References a physical drive in the system */
struct burn_drive;
/** References a whole disc */
struct burn_disc;
/** References a single session on a disc */
struct burn_session;
/** References a single track on a disc */
struct burn_track;
/* ts A61111 */
/** References a set of write parameters */
struct burn_write_opts;
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/** Session format for normal audio or data discs */
#define BURN_CDROM 0
/** Session format for obsolete CD-I discs */
#define BURN_CDI 0x10
/** Session format for CDROM-XA discs */
#define BURN_CDXA 0x20
#define BURN_POS_END 100
/** Mask for mode bits */
#define BURN_MODE_BITS 127
/** Track mode - mode 0 data
0 bytes of user data. it's all 0s. mode 0. get it? HAH
*/
#define BURN_MODE0 (1 << 0)
/** Track mode - mode "raw" - all 2352 bytes supplied by app
FOR DATA TRACKS ONLY!
*/
#define BURN_MODE_RAW (1 << 1)
/** Track mode - mode 1 data
2048 bytes user data, and all the LEC money can buy
*/
#define BURN_MODE1 (1 << 2)
/** Track mode - mode 2 data
defaults to formless, 2336 bytes of user data, unprotected
| with a data form if required.
*/
#define BURN_MODE2 (1 << 3)
/** Track mode modifier - Form 1, | with MODE2 for reasonable results
2048 bytes of user data, 4 bytes of subheader
*/
#define BURN_FORM1 (1 << 4)
/** Track mode modifier - Form 2, | with MODE2 for reasonable results
lots of user data. not much LEC.
*/
#define BURN_FORM2 (1 << 5)
/** Track mode - audio
2352 bytes per sector. may be | with 4ch or preemphasis.
NOT TO BE CONFUSED WITH BURN_MODE_RAW
Audio data must be 44100Hz 16bit stereo with no riff or other header at
beginning. Extra header data will cause pops or clicks. Audio data should
also be in little-endian byte order. Big-endian audio data causes static.
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*/
#define BURN_AUDIO (1 << 6)
/** Track mode modifier - 4 channel audio. */
#define BURN_4CH (1 << 7)
/** Track mode modifier - Digital copy permitted, can be set on any track.*/
#define BURN_COPY (1 << 8)
/** Track mode modifier - 50/15uS pre-emphasis */
#define BURN_PREEMPHASIS (1 << 9)
/** Input mode modifier - subcodes present packed 16 */
#define BURN_SUBCODE_P16 (1 << 10)
/** Input mode modifier - subcodes present packed 96 */
#define BURN_SUBCODE_P96 (1 << 11)
/** Input mode modifier - subcodes present raw 96 */
#define BURN_SUBCODE_R96 (1 << 12)
/** Possible disc writing style/modes */
enum burn_write_types
{
/** Packet writing.
currently unsupported, (for DVD Incremental Streaming use TAO)
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*/
BURN_WRITE_PACKET,
/** With CD: Track At Once recording
2s gaps between tracks, no fonky lead-ins
With sequential DVD-R[W]: Incremental Streaming
With DVD-RAM/+RW: Random Writeable (used sequentially)
With overwriteable DVD-RW: Rigid Restricted Overwrite
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*/
BURN_WRITE_TAO,
/** With CD: Session At Once
Block type MUST be BURN_BLOCK_SAO
ts A70122: Currently not capable of mixing data and audio tracks.
With sequential DVD-R[W]: Disc-at-once, DAO
Single session, single track, fixed size mandatory, (-dvd-compat)
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*/
BURN_WRITE_SAO,
/** With CD: Raw disc at once recording.
all subcodes must be provided by lib or user
only raw block types are supported
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*/
BURN_WRITE_RAW,
/** In replies this indicates that not any writing will work.
As parameter for inquiries it indicates that no particular write
mode shall is specified.
Do not use for setting a write mode for burning. It won't work.
*/
BURN_WRITE_NONE
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};
/** Data format to send to the drive */
enum burn_block_types
{
/** sync, headers, edc/ecc provided by lib/user */
BURN_BLOCK_RAW0 = 1,
/** sync, headers, edc/ecc and p/q subs provided by lib/user */
BURN_BLOCK_RAW16 = 2,
/** sync, headers, edc/ecc and packed p-w subs provided by lib/user */
BURN_BLOCK_RAW96P = 4,
/** sync, headers, edc/ecc and raw p-w subs provided by lib/user */
BURN_BLOCK_RAW96R = 8,
/** only 2048 bytes of user data provided by lib/user */
BURN_BLOCK_MODE1 = 256,
/** 2336 bytes of user data provided by lib/user */
BURN_BLOCK_MODE2R = 512,
/** 2048 bytes of user data provided by lib/user
subheader provided in write parameters
are we ever going to support this shit? I vote no.
(supposed to be supported on all drives...)
*/
BURN_BLOCK_MODE2_PATHETIC = 1024,
/** 2048 bytes of data + 8 byte subheader provided by lib/user
hey, this is also dumb
*/
BURN_BLOCK_MODE2_LAME = 2048,
/** 2324 bytes of data provided by lib/user
subheader provided in write parameters
no sir, I don't like it.
*/
BURN_BLOCK_MODE2_OBSCURE = 4096,
/** 2332 bytes of data supplied by lib/user
8 bytes sub header provided in write parameters
this is the second least suck mode2, and is mandatory for
all drives to support.
*/
BURN_BLOCK_MODE2_OK = 8192,
/** SAO block sizes are based on cue sheet, so use this. */
BURN_BLOCK_SAO = 16384
};
/** Possible status' of the drive in regard to the disc in it. */
enum burn_disc_status
{
/** The current status is not yet known */
BURN_DISC_UNREADY,
/** The drive holds a blank disc */
BURN_DISC_BLANK,
/** There is no disc at all in the drive */
BURN_DISC_EMPTY,
/** There is an incomplete disc in the drive */
BURN_DISC_APPENDABLE,
/** There is a disc with data on it in the drive */
BURN_DISC_FULL,
/* ts A61007 */
/** The drive was not grabbed when the status was inquired */
BURN_DISC_UNGRABBED,
/* ts A61020 */
/** The media seems not to be suitable for burning */
BURN_DISC_UNSUITABLE
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};
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/** Possible data source return values */
enum burn_source_status
{
/** The source is ok */
BURN_SOURCE_OK,
/** The source is at end of file */
BURN_SOURCE_EOF,
/** The source is unusable */
BURN_SOURCE_FAILED
};
/** Possible busy states for a drive */
enum burn_drive_status
{
/** The drive is not in an operation */
BURN_DRIVE_IDLE,
/** The library is spawning the processes to handle a pending
operation (A read/write/etc is about to start but hasn't quite
yet) */
BURN_DRIVE_SPAWNING,
/** The drive is reading data from a disc */
BURN_DRIVE_READING,
/** The drive is writing data to a disc */
BURN_DRIVE_WRITING,
/** The drive is writing Lead-In */
BURN_DRIVE_WRITING_LEADIN,
/** The drive is writing Lead-Out */
BURN_DRIVE_WRITING_LEADOUT,
/** The drive is erasing a disc */
BURN_DRIVE_ERASING,
/** The drive is being grabbed */
BURN_DRIVE_GRABBING,
/* ts A61102 */
/** The drive gets written zeroes before the track payload data */
BURN_DRIVE_WRITING_PREGAP,
/** The drive is told to close a track (TAO only) */
BURN_DRIVE_CLOSING_TRACK,
/** The drive is told to close a session (TAO only) */
BURN_DRIVE_CLOSING_SESSION,
/* ts A61223 */
/** The drive is formatting media */
BURN_DRIVE_FORMATTING,
/* ts A70822 */
/** The drive is busy in synchronous read (if you see this then it
has been interrupted) */
BURN_DRIVE_READING_SYNC,
/** The drive is busy in synchronous write (if you see this then it
has been interrupted) */
BURN_DRIVE_WRITING_SYNC
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};
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/** Information about a track on a disc - this is from the q sub channel of the
lead-in area of a disc. The documentation here is very terse.
See a document such as mmc3 for proper information.
CAUTION : This structure is prone to future extension !
Do not restrict your application to unsigned char with any counter like
"session", "point", "pmin", ...
Do not rely on the current size of a burn_toc_entry.
ts A70201 : DVD extension, see below
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*/
struct burn_toc_entry
{
/** Session the track is in */
unsigned char session;
/** Type of data. for this struct to be valid, it must be 1 */
unsigned char adr;
/** Type of data in the track */
unsigned char control;
/** Zero. Always. Really. */
unsigned char tno;
/** Track number or special information */
unsigned char point;
unsigned char min;
unsigned char sec;
unsigned char frame;
unsigned char zero;
/** Track start time minutes for normal tracks */
unsigned char pmin;
/** Track start time seconds for normal tracks */
unsigned char psec;
/** Track start time frames for normal tracks */
unsigned char pframe;
/* Indicates wether extension data are valid and eventually override
older elements in this structure:
bit0= DVD extension is valid
*/
unsigned char extensions_valid;
/* ts A70201 : DVD extension.
If invalid the members are guaranteed to be 0. */
/* Tracks and session numbers are 16 bit. Here are the high bytes. */
unsigned char session_msb;
unsigned char point_msb;
/* pmin, psec, and pframe may be too small if DVD extension is valid */
int start_lba;
/* min, sec, and frame may be too small if DVD extension is valid */
int track_blocks;
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};
/** Data source for tracks */
struct burn_source {
/** Reference count for the data source. Should be 1 when a new source
is created. Increment it to take a reference for yourself. Use
burn_source_free to destroy your reference to it. */
int refcount;
/** Read data from the source */
int (*read)(struct burn_source *,
unsigned char *buffer,
int size);
/** Read subchannel data from the source (NULL if lib generated) */
int (*read_sub)(struct burn_source *,
unsigned char *buffer,
int size);
/** Get the size of the source's data */
off_t (*get_size)(struct burn_source *);
/** Set the size of the source's data */
int (*set_size)(struct burn_source *source, off_t size);
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/** Clean up the source specific data */
void (*free_data)(struct burn_source *);
/** Next source, for when a source runs dry and padding is disabled
THIS IS AUTOMATICALLY HANDLED, DO NOT TOUCH
*/
struct burn_source *next;
/** Source specific data */
void *data;
};
/** Information on a drive in the system */
struct burn_drive_info
{
/** Name of the vendor of the drive */
char vendor[9];
/** Name of the drive */
char product[17];
/** Revision of the drive */
char revision[5];
/** Location of the drive in the filesystem. */
char location[17];
/** This is currently the string which is used as persistent
drive address. But be warned: there is NO GUARANTEE that this
will stay so. Always use function burn_drive_get_adr() to
inquire a persistent address. ^^^^^^ ALWAYS ^^^^^^ */
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/** Can the drive read DVD-RAM discs */
unsigned int read_dvdram:1;
/** Can the drive read DVD-R discs */
unsigned int read_dvdr:1;
/** Can the drive read DVD-ROM discs */
unsigned int read_dvdrom:1;
/** Can the drive read CD-R discs */
unsigned int read_cdr:1;
/** Can the drive read CD-RW discs */
unsigned int read_cdrw:1;
/** Can the drive write DVD-RAM discs */
unsigned int write_dvdram:1;
/** Can the drive write DVD-R discs */
unsigned int write_dvdr:1;
/** Can the drive write CD-R discs */
unsigned int write_cdr:1;
/** Can the drive write CD-RW discs */
unsigned int write_cdrw:1;
/** Can the drive simulate a write */
unsigned int write_simulate:1;
/** Can the drive report C2 errors */
unsigned int c2_errors:1;
/** The size of the drive's buffer (in kilobytes) */
int buffer_size;
/**
* The supported block types in tao mode.
* They should be tested with the desired block type.
* See also burn_block_types.
*/
int tao_block_types;
/**
* The supported block types in sao mode.
* They should be tested with the desired block type.
* See also burn_block_types.
*/
int sao_block_types;
/**
* The supported block types in raw mode.
* They should be tested with the desired block type.
* See also burn_block_types.
*/
int raw_block_types;
/**
* The supported block types in packet mode.
* They should be tested with the desired block type.
* See also burn_block_types.
*/
int packet_block_types;
/** The value by which this drive can be indexed when using functions
in the library. This is the value to pass to all libbburn functions
that operate on a drive. */
struct burn_drive *drive;
};
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/** Operation progress report. All values are 0 based indices.
* */
struct burn_progress {
/** The total number of sessions */
int sessions;
/** Current session.*/
int session;
/** The total number of tracks */
int tracks;
/** Current track. */
int track;
/** The total number of indices */
int indices;
/** Curent index. */
int index;
/** The starting logical block address */
int start_sector;
/** On write: The number of sectors.
On blank: 0x10000 as upper limit for relative progress steps */
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int sectors;
/** On write: The current sector being processed.
On blank: Relative progress steps 0 to 0x10000 */
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int sector;
/* ts A61023 */
/** The capacity of the drive buffer */
unsigned buffer_capacity;
/** The free space in the drive buffer (might be slightly outdated) */
unsigned buffer_available;
/* ts A61119 */
/** The number of bytes sent to the drive buffer */
off_t buffered_bytes;
/** The minimum number of bytes stored in buffer during write.
(Caution: Before surely one buffer size of bytes was processed,
this value is 0xffffffff.)
*/
unsigned buffer_min_fill;
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};
/* ts A61226 */
/** Description of a speed capability as reported by the drive in conjunction
with eventually loaded media. There can be more than one such object per
drive. So they are chained via .next and .prev , where NULL marks the end
of the chain. This list is set up by burn_drive_scan() and gets updated
by burn_drive_grab().
A copy may be obtained by burn_drive_get_speedlist() and disposed by
burn_drive_free_speedlist().
For technical background info see SCSI specs MMC and SPC:
mode page 2Ah (from SPC 5Ah MODE SENSE) , mmc3r10g.pdf , 6.3.11 Table 364
ACh GET PERFORMANCE, Type 03h , mmc5r03c.pdf , 6.8.5.3 Table 312
*/
struct burn_speed_descriptor {
/** Where this info comes from :
0 = misc , 1 = mode page 2Ah , 2 = ACh GET PERFORMANCE */
int source;
/** The media type that was current at the time of report
-2 = state unknown, -1 = no media was loaded , else see
burn_disc_get_profile() */
int profile_loaded;
char profile_name[80];
/** The attributed capacity of appropriate media in logical block units
i.e. 2352 raw bytes or 2048 data bytes. -1 = capacity unknown. */
int end_lba;
/** Speed is given in 1000 bytes/s , 0 = invalid. The numbers
are supposed to be usable with burn_drive_set_speed() */
int write_speed;
int read_speed;
/** Expert info from ACh GET PERFORMANCE and/or mode page 2Ah.
Expect values other than 0 or 1 to get a meaning in future.*/
/* Rotational control: 0 = CLV/default , 1 = CAV */
int wrc;
/* 1 = drive promises reported performance over full media */
int exact;
/* 1 = suitable for mixture of read and write */
int mrw;
/** List chaining. Use .next until NULL to iterate over the list */
struct burn_speed_descriptor *prev;
struct burn_speed_descriptor *next;
};
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/** Initialize the library.
This must be called before using any other functions in the library. It
may be called more than once with no effect.
It is possible to 'restart' the library by shutting it down and
re-initializing it. This is necessary if you follow the older and
more general way of accessing a drive via burn_drive_scan() and
burn_drive_grab(). See burn_drive_scan_and_grab() with its strong
urges and its explanations.
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@return Nonzero if the library was able to initialize; zero if
initialization failed.
*/
int burn_initialize(void);
/** Shutdown the library.
This should be called before exiting your application. Make sure that all
drives you have grabbed are released <i>before</i> calling this.
*/
void burn_finish(void);
/* ts A61002 */
/** Abort any running drive operation and finally call burn_finish().
You MUST calm down the busy drive if an aborting event occurs during a
burn run. For that you may call this function either from your own signal
handling code or indirectly by activating the builtin signal handling:
burn_set_signal_handling("my_app_name : ", NULL, 0);
Else you may eventually call burn_drive_cancel() on the active drive and
wait for it to assume state BURN_DRIVE_IDLE.
@param patience Maximum number of seconds to wait for drives to finish
@param pacifier_func If not NULL: a function to produce appeasing messages.
See burn_abort_pacifier() for an example.
@param handle Opaque handle to be used with pacifier_func
@return 1 ok, all went well
0 had to leave a drive in unclean state
<0 severe error, do no use libburn again
*/
int burn_abort(int patience,
int (*pacifier_func)(void *handle, int patience, int elapsed),
void *handle);
/** A pacifier function suitable for burn_abort.
@param handle If not NULL, a pointer to a text suitable for printf("%s")
@param patience Maximum number of seconds to wait
@param elapsed Elapsed number of seconds
*/
int burn_abort_pacifier(void *handle, int patience, int elapsed);
/** ts A61006 : This is for development only. Not suitable for applications.
Set the verbosity level of the library. The default value is 0, which means
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that nothing is output on stderr. The more you increase this, the more
debug output should be displayed on stderr for you.
@param level The verbosity level desired. 0 for nothing, higher positive
values for more information output.
*/
void burn_set_verbosity(int level);
/* ts A60813 */
/** Set parameters for behavior on opening device files. To be called early
after burn_initialize() and before any bus scan. But not mandatory at all.
Parameter value 1 enables a feature, 0 disables.
Default is (1,0,0). Have a good reason before you change it.
@param exclusive Linux only:
0 = no attempt to make drive access exclusive.
1 = Try to open only devices which are not marked as busy
and try to mark them busy if opened sucessfully. (O_EXCL)
There are kernels which simply don't care about O_EXCL.
Some have it off, some have it on, some are switchable.
2 = in case of a SCSI device, also try to open exclusively
the matching /dev/sr, /dev/scd and /dev/st .
One may select a device SCSI file family by adding
0 = default family
4 = /dev/sr%d
8 = /dev/scd%d
16 = /dev/sg%d
Do not use other values !
Add 32 to demand an exclusive lock by fcntl(,F_SETLK,)
after open() has succeeded.
@param blocking Try to wait for drives which do not open immediately but
also do not return an error as well. (O_NONBLOCK)
This might stall indefinitely with /dev/hdX hard disks.
@param abort_on_busy Unconditionally abort process when a non blocking
exclusive opening attempt indicates a busy drive.
Use this only after thorough tests with your app.
*/
void burn_preset_device_open(int exclusive, int blocking, int abort_on_busy);
/* ts A70223 */
/** Allows the use of media types which are implemented in libburn but not yet
tested. The list of those untested profiles is subject to change.
Currently it contains: 0x15 "DVD-R/DL sequential recording",
0x2b "DVD+R/DL"
If you really test such media, then please report the outcome on
libburn-hackers@pykix.org
If ever then this call should be done soon after burn_initialize() before
any drive scanning.
@param yes 1=allow all implemented profiles, 0=only tested media (default)
*/
void burn_allow_untested_profiles(int yes);
/* ts A60823 */
/** Aquire a drive with known persistent address.This is the sysadmin friendly
way to open one drive and to leave all others untouched. It bundles
the following API calls to form a non-obtrusive way to use libburn:
burn_drive_add_whitelist() , burn_drive_scan() , burn_drive_grab()
You are *strongly urged* to use this call whenever you know the drive
address in advance.
If not, then you have to use directly above calls. In that case, you are
*strongly urged* to drop any unintended drive which will be exclusively
occupied and not closed by burn_drive_scan().
This can be done by shutting down the library including a call to
burn_finish(). You may later start a new libburn session and should then
use the function described here with an address obtained after
burn_drive_scan() via burn_drive_get_adr(&(drive_infos[driveno]), adr) .
Another way is to drop the unwanted drives by burn_drive_info_forget().
Other than with burn_drive_scan() it is allowed to call
burn_drive_scan_and_grab() without giving up any other scanned drives.
So this call can be used to hold aquired more than one drive at a time.
@param drive_infos On success returns a one element array with the drive
(cdrom/burner). Thus use with driveno 0 only. On failure
the array has no valid elements at all.
The returned array should be freed via burn_drive_info_free()
when it is no longer needed, and before calling a scan
function again.
This is a result from call burn_drive_scan(). See there.
Use with driveno 0 only.
@param adr The persistent address of the desired drive. Either obtained
by burn_drive_get_adr() or guessed skillfully by application
resp. its user.
@param load Nonzero to make the drive attempt to load a disc (close its
tray door, etc).
@return 1 = success , 0 = drive not found , -1 = other error
*/
int burn_drive_scan_and_grab(struct burn_drive_info *drive_infos[],
char* adr, int load);
/* ts A51221 */
/** Maximum number of particularly permissible drive addresses */
#define BURN_DRIVE_WHITELIST_LEN 255
/** Add a device to the list of permissible drives. As soon as some entry is in
the whitelist all non-listed drives are banned from scanning.
@return 1 success, <=0 failure
*/
int burn_drive_add_whitelist(char *device_address);
/** Remove all drives from whitelist. This enables all possible drives. */
void burn_drive_clear_whitelist(void);
/** Scan for drives. This function MUST be called until it returns nonzero.
In case of re-scanning:
All pointers to struct burn_drive and all struct burn_drive_info arrays
are invalidated by using this function. Do NOT store drive pointers across
calls to this function !
To avoid invalid pointers one MUST free all burn_drive_info arrays
by burn_drive_info_free() before calling burn_drive_scan() a second time.
If there are drives left, then burn_drive_scan() will refuse to work.
After this call all drives depicted by the returned array are subject
to eventual (O_EXCL) locking. See burn_preset_device_open(). This state
ends either with burn_drive_info_forget() or with burn_drive_release().
It is unfriendly to other processes on the system to hold drives locked
which one does not definitely plan to use soon.
@param drive_infos Returns an array of drive info items (cdroms/burners).
The returned array must be freed by burn_drive_info_free()
before burn_finish(), and also before calling this function
burn_drive_scan() again.
@param n_drives Returns the number of drive items in drive_infos.
@return 0 while scanning is not complete
>0 when it is finished sucessfully,
<0 when finished but failed.
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*/
int burn_drive_scan(struct burn_drive_info *drive_infos[],
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unsigned int *n_drives);
/* ts A60904 : ticket 62, contribution by elmom */
/** Release memory about a single drive and any exclusive lock on it.
Become unable to inquire or grab it. Expect FATAL consequences if you try.
@param drive_info pointer to a single element out of the array
obtained from burn_drive_scan() : &(drive_infos[driveno])
@param force controls degree of permissible drive usage at the moment this
function is called, and the amount of automatically provided
drive shutdown :
0= drive must be ungrabbed and BURN_DRIVE_IDLE
1= try to release drive resp. accept BURN_DRIVE_GRABBING
Use these two only. Further values are to be defined.
@return 1 on success, 2 if drive was already forgotten,
0 if not permissible, <0 on other failures,
*/
int burn_drive_info_forget(struct burn_drive_info *drive_info, int force);
/** When no longer needed, free a whole burn_drive_info array which was
returned by burn_drive_scan().
For freeing single drive array elements use burn_drive_info_forget().
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*/
void burn_drive_info_free(struct burn_drive_info drive_infos[]);
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/* ts A60823 */
/** Maximum length+1 to expect with a persistent drive address string */
#define BURN_DRIVE_ADR_LEN 1024
/** Inquire the persistent address of the given drive.
@param drive The drive to inquire.
@param adr An application provided array of at least BURN_DRIVE_ADR_LEN
characters size. The persistent address gets copied to it.
@return >0 success , <=0 error (due to libburn internal problem)
*/
int burn_drive_d_get_adr(struct burn_drive *drive, char adr[]);
/** Inquire the persistent address of a drive via a given drive_info object.
(Note: This is a legacy call.)
@param drive_info The drive to inquire. Usually some &(drive_infos[driveno])
@param adr An application provided array of at least BURN_DRIVE_ADR_LEN
characters size. The persistent address gets copied to it.
@return >0 success , <=0 error (due to libburn internal problem)
*/
int burn_drive_get_adr(struct burn_drive_info *drive_info, char adr[]);
/* ts A60922 ticket 33 */
/** Evaluate wether the given address would be a possible persistent drive
address of libburn.
@return 1 means yes, 0 means no
*/
int burn_drive_is_enumerable_adr(char *adr);
/* ts A60922 ticket 33 */
/** Try to convert a given existing filesystem address into a persistent drive
address. This succeeds with symbolic links or if a hint about the drive's
system address can be read from the filesystem object and a matching drive
is found.
@param path The address of an existing file system object
@param adr An application provided array of at least BURN_DRIVE_ADR_LEN
characters size. The persistent address gets copied to it.
@return 1 = success , 0 = failure , -1 = severe error
*/
int burn_drive_convert_fs_adr(char *path, char adr[]);
/* ts A60923 */
/** Try to convert a given SCSI address of bus,host,channel,target,lun into
a persistent drive address. If a SCSI address component parameter is < 0
then it is not decisive and the first enumerated address which matches
the >= 0 parameters is taken as result.
Note: bus and (host,channel) are supposed to be redundant.
@param bus_no "Bus Number" (something like a virtual controller)
@param host_no "Host Number" (something like half a virtual controller)
@param channel_no "Channel Number" (other half of "Host Number")
@param target_no "Target Number" or "SCSI Id" (a device)
@param lun_no "Logical Unit Number" (a sub device)
@param adr An application provided array of at least BURN_DRIVE_ADR_LEN
characters size. The persistent address gets copied to it.
@return 1 = success , 0 = failure , -1 = severe error
*/
int burn_drive_convert_scsi_adr(int bus_no, int host_no, int channel_no,
int target_no, int lun_no, char adr[]);
/* ts A60923 - A61005 */
/** Try to obtain bus,host,channel,target,lun from path. If there is an SCSI
address at all, then this call should succeed with a persistent
drive address obtained via burn_drive_get_adr(). It is also supposed to
succeed with any device file of a (possibly emulated) SCSI device.
@return 1 = success , 0 = failure , -1 = severe error
*/
int burn_drive_obtain_scsi_adr(char *path, int *bus_no, int *host_no,
int *channel_no, int *target_no, int *lun_no);
16 years ago
/** Grab a drive. This must be done before the drive can be used (for reading,
writing, etc).
16 years ago
@param drive The drive to grab. This is found in a returned
burn_drive_info struct.
@param load Nonzero to make the drive attempt to load a disc (close its
tray door, etc).
@return 1 if it was possible to grab the drive, else 0
16 years ago
*/
int burn_drive_grab(struct burn_drive *drive, int load);
16 years ago
/** Release a drive. This should not be done until the drive is no longer
busy (see burn_drive_get_status).
Linux: The drive is unlocked afterwards. (O_EXCL , F_SETLK).
16 years ago
@param drive The drive to release.
@param eject Nonzero to make the drive eject the disc in it.
*/
void burn_drive_release(struct burn_drive *drive, int eject);
16 years ago
/** Returns what kind of disc a drive is holding. This function may need to be
called more than once to get a proper status from it. See burn_disc_status
16 years ago
for details.
@param drive The drive to query for a disc.
@return The status of the drive, or what kind of disc is in it.
Note: BURN_DISC_UNGRABBED indicates wrong API usage
16 years ago
*/
enum burn_disc_status burn_disc_get_status(struct burn_drive *drive);
/* ts A61020 */
/** WARNING: This revives an old bug-like behavior that might be dangerous.
Sets the drive status to BURN_DISC_BLANK if it is BURN_DISC_UNREADY
or BURN_DISC_UNSUITABLE. Thus marking media as writable which actually
failed to declare themselves either blank or (partially) filled.
@return 1 drive status has been set , 0 = unsuitable drive status
*/
int burn_disc_pretend_blank(struct burn_drive *drive);
/* ts A61106 */
/** WARNING: This overrides the safety measures against unsuitable media.
Sets the drive status to BURN_DISC_FULL if it is BURN_DISC_UNREADY
or BURN_DISC_UNSUITABLE. Thus marking media as blankable which actually
failed to declare themselves either blank or (partially) filled.
*/
int burn_disc_pretend_full(struct burn_drive *drive);
/* ts A61021 */
/** Reads ATIP information from inserted media. To be obtained via
burn_drive_get_write_speed(), burn_drive_get_min_write_speed(),
burn_drive_get_start_end_lba(). The drive must be grabbed for this call.
@param drive The drive to query.
@return 1=sucess, 0=no valid ATIP info read, -1 severe error
*/
int burn_disc_read_atip(struct burn_drive *drive);
/* ts A61020 */
/** Returns start and end lba of the media which is currently inserted
in the given drive. The drive has to be grabbed to have hope for reply.
Shortcomming (not a feature): unless burn_disc_read_atip() was called
only blank media will return valid info.
@param drive The drive to query.
@param start_lba Returns the start lba value
@param end_lba Returns the end lba value
@param flag Bitfield for control purposes (unused yet, submit 0)
@return 1 if lba values are valid , 0 if invalid
*/
int burn_drive_get_start_end_lba(struct burn_drive *drive,
int *start_lba, int *end_lba, int flag);
/* ts A61110 */
/** Read start lba and Next Writeable Address of a track from media.
Usually a track lba is obtained from the result of burn_track_get_entry().
This call retrieves an updated lba, eventual nwa, and can address the
invisible track to come.
The drive must be grabbed for this call. One may not issue this call
during ongoing burn_disc_write() or burn_disc_erase().
@param d The drive to query.
@param o If not NULL: write parameters to be set on drive before query
@param trackno 0=next track to come, >0 number of existing track