/*
$Id: cdio_private.h,v 1.31 2006/01/23 20:48:11 rocky Exp $
Copyright (C) 2003, 2004, 2005 Rocky Bernstein <rocky@panix.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Internal routines for CD I/O drivers. */
#ifndef __CDIO_PRIVATE_H__
#define __CDIO_PRIVATE_H__
#if defined(HAVE_CONFIG_H) && !defined(LIBCDIO_CONFIG_H)
# include "config.h"
#endif
#include <cdio/cdio.h>
#include <cdio/audio.h>
#include <cdio/cdtext.h>
#include "mmc_private.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Opaque type */
typedef struct _CdioDataSource CdioDataSource_t;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#include "generic.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct {
/*!
Get volume of an audio CD.
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_get_volume)
(void *p_env, /*out*/ cdio_audio_volume_t *p_volume);
/*!
Pause playing CD through analog output
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_pause) (void *p_env);
/*!
Playing CD through analog output
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_play_msf) ( void *p_env,
msf_t *p_start_msf,
msf_t *p_end_msf );
/*!
Playing CD through analog output
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_play_track_index)
( void *p_env, cdio_track_index_t *p_track_index );
/*!
Get subchannel information.
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_read_subchannel)
( void *p_env, cdio_subchannel_t *subchannel );
/*!
Resume playing an audio CD.
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_resume) ( void *p_env );
/*!
Set volume of an audio CD.
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_set_volume)
( void *p_env, cdio_audio_volume_t *p_volume );
/*!
Stop playing an audio CD.
@param p_env the CD object to be acted upon.
*/
driver_return_code_t (*audio_stop) ( void *p_env );
/*!
Eject media in CD drive. If successful, as a side effect we
also free p_env.
@param p_env the CD object to be acted upon.
If the CD is ejected *p_env is freed and p_env set to NULL.
*/
driver_return_code_t (*eject_media) ( void *p_env );
/*!
Release and free resources associated with cd.
*/
void (*free) (void *p_env);
/*!
Return the value associated with the key "arg".
*/
const char * (*get_arg) (void *p_env, const char key[]);
/*!
Get the block size for subsequest read requests, via a SCSI MMC
MODE_SENSE 6 command.
*/
int (*get_blocksize) ( void *p_env );
/*!
Get cdtext information for a CdIo object.
@param obj the CD object that may contain CD-TEXT information.
@return the CD-TEXT object or NULL if obj is NULL
or CD-TEXT information does not exist.
If i_track is 0 or CDIO_CDROM_LEADOUT_TRACK the track returned
is the information assocated with the CD.
*/
cdtext_t * (*get_cdtext) ( void *p_env, track_t i_track );
/*!
Return an array of device names. if CdIo is NULL (we haven't
initialized a specific device driver), then find a suitable device
driver.
NULL is returned if we couldn't return a list of devices.
*/
char ** (*get_devices) ( void );
/*!
Get the default CD device.
@return a string containing the default CD device or NULL is
if we couldn't get a default device.
In some situations of drivers or OS's we can't find a CD device if
there is no media in it and it is possible for this routine to return
NULL even though there may be a hardware CD-ROM.
*/
char * (*get_default_device) ( void );
/*!
Return the size of the CD in logical block address (LBA) units.
@return the lsn. On error 0 or CDIO_INVALD_LSN.
*/
lsn_t (*get_disc_last_lsn) ( void *p_env );
/*!
Get disc mode associated with cd_obj.
*/
discmode_t (*get_discmode) ( void *p_env );
/*!
Return the what kind of device we've got.
See cd_types.h for a list of bitmasks for the drive type;
*/
void (*get_drive_cap) (const void *p_env,
cdio_drive_read_cap_t *p_read_cap,
cdio_drive_write_cap_t *p_write_cap,
cdio_drive_misc_cap_t *p_misc_cap);
/*!
Return the number of of the first track.
CDIO_INVALID_TRACK is returned on error.
*/
track_t (*get_first_track_num) ( void *p_env );
/*!
Get the CD-ROM hardware info via a SCSI MMC INQUIRY command.
False is returned if we had an error getting the information.
*/
bool (*get_hwinfo)
( const CdIo_t *p_cdio, /* out*/ cdio_hwinfo_t *p_hw_info );
/*! Get the LSN of the first track of the last session of
on the CD.
@param p_cdio the CD object to be acted upon.
@param i_last_session pointer to the session number to be returned.
*/
driver_return_code_t (*get_last_session)
( void *p_env, /*out*/ lsn_t *i_last_session );
/*!
Find out if media has changed since the last call.
@param p_env the CD object to be acted upon.
@return 1 if media has changed since last call, 0 if not. Error
return codes are the same as driver_return_code_t
*/
int (*get_media_changed) ( const void *p_env );
/*!
Return the media catalog number MCN from the CD or NULL if
there is none or we don't have the ability to get it.
*/
char * (*get_mcn) ( const void *p_env );
/*!
Return the number of tracks in the current medium.
CDIO_INVALID_TRACK is returned on error.
*/
track_t (*get_num_tracks) ( void *p_env );
/*! Return number of channels in track: 2 or 4; -2 if not
implemented or -1 for error.
Not meaningful if track is not an audio track.
*/
int (*get_track_channels) ( const void *p_env, track_t i_track );
/*! Return 0 if track is copy protected, 1 if not, or -1 for error
or -2 if not implimented (yet). Is this meaningful if not an
audio track?
*/
track_flag_t (*get_track_copy_permit) ( void *p_env, track_t i_track );
/*!
Return the starting LBA for track number
i_track in p_env. Tracks numbers start at 1.
The "leadout" track is specified either by
using track_num LEADOUT_TRACK or the total tracks+1.
CDIO_INVALID_LBA is returned on error.
*/
lba_t (*get_track_lba) ( void *p_env, track_t i_track );
/*!
Get format of track.
*/
track_format_t (*get_track_format) ( void *p_env, track_t i_track );
/*!
Return true if we have XA data (green, mode2 form1) or
XA data (green, mode2 form2). That is track begins:
sync - header - subheader
12 4 - 8
FIXME: there's gotta be a better design for this and get_track_format?
*/
bool (*get_track_green) ( void *p_env, track_t i_track );
/*!
Return the starting MSF (minutes/secs/frames) for track number
i_track in p_env. Tracks numbers start at 1.
The "leadout" track is specified either by
using i_track LEADOUT_TRACK or the total tracks+1.
False is returned on error.
*/
bool (*get_track_msf) ( void *p_env, track_t i_track, msf_t *p_msf );
/*! Return 1 if track has pre-emphasis, 0 if not, or -1 for error
or -2 if not implimented (yet). Is this meaningful if not an
audio track?
*/
track_flag_t (*get_track_preemphasis)
( const void *p_env, track_t i_track );
/*!
lseek - reposition read/write file offset
Returns (off_t) -1 on error.
Similar to libc's lseek()
*/
off_t (*lseek) ( void *p_env, off_t offset, int whence );
/*!
Reads into buf the next size bytes.
Returns -1 on error.
Similar to libc's read()
*/
ssize_t (*read) ( void *p_env, void *p_buf, size_t i_size );
/*!
Reads a single mode2 sector from cd device into buf starting
from lsn. Returns 0 if no error.
*/
int (*read_audio_sectors) ( void *p_env, void *p_buf, lsn_t i_lsn,
unsigned int i_blocks );
/*!
Read a data sector
@param p_env environment to read from
@param p_buf place to read data into. The caller should make sure
this location can store at least CDIO_CD_FRAMESIZE,
M2RAW_SECTOR_SIZE, or M2F2_SECTOR_SIZE depending
on the kind of sector getting read. If you don't
know whether you have a Mode 1/2, Form 1/ Form 2/Formless
sector best to reserve space for the maximum,
M2RAW_SECTOR_SIZE.
@param i_lsn sector to read
@param i_blocksize size of block. Should be either CDIO_CD_FRAMESIZE,
M2RAW_SECTOR_SIZE, or M2F2_SECTOR_SIZE. See comment above under p_buf.
*/
driver_return_code_t (*read_data_sectors)
( void *p_env, void *p_buf, lsn_t i_lsn, uint16_t i_blocksize,
uint32_t i_blocks );
/*!
Reads a single mode2 sector from cd device into buf starting
from lsn. Returns 0 if no error.
*/
int (*read_mode2_sector)
( void *p_env, void *p_buf, lsn_t i_lsn, bool b_mode2_form2 );
/*!
Reads i_blocks of mode2 sectors from cd device into data starting
from lsn.
Returns 0 if no error.
*/
int (*read_mode2_sectors)
( void *p_env, void *p_buf, lsn_t i_lsn, bool b_mode2_form2,
unsigned int i_blocks );
/*!
Reads a single mode1 sector from cd device into buf starting
from lsn. Returns 0 if no error.
*/
int (*read_mode1_sector)
( void *p_env, void *p_buf, lsn_t i_lsn, bool mode1_form2 );
/*!
Reads i_blocks of mode1 sectors from cd device into data starting
from lsn.
Returns 0 if no error.
*/
int (*read_mode1_sectors)
( void *p_env, void *p_buf, lsn_t i_lsn, bool mode1_form2,
unsigned int i_blocks );
bool (*read_toc) ( void *p_env ) ;
/*!
Run a SCSI MMC command.
cdio CD structure set by cdio_open().
i_timeout_ms time in milliseconds we will wait for the command
to complete.
cdb_len number of bytes in cdb (6, 10, or 12).
cdb CDB bytes. All values that are needed should be set on
input.
b_return_data TRUE if the command expects data to be returned in
the buffer
len Size of buffer
buf Buffer for data, both sending and receiving
Returns 0 if command completed successfully.
*/
mmc_run_cmd_fn_t run_mmc_cmd;
/*!
Set the arg "key" with "value" in the source device.
*/
int (*set_arg) ( void *p_env, const char key[], const char value[] );
/*!
Set the blocksize for subsequent reads.
*/
driver_return_code_t (*set_blocksize) ( void *p_env,
uint16_t i_blocksize );
/*!
Set the drive speed.
@return 0 if everything went okay, -1 if we had an error. is -2
returned if this is not implemented for the current driver.
*/
int (*set_speed) ( void *p_env, int i_speed );
} cdio_funcs_t;
/*! Implementation of CdIo type */
struct _CdIo {
driver_id_t driver_id; /**< Particular driver opened. */
cdio_funcs_t op; /**< driver-specific routines handling
implementation*/
void *env; /**< environment. Passed to routine above. */
};
/* This is used in drivers that must keep their own internal
position pointer for doing seeks. Stream-based drivers (like bincue,
nrg, toc, network) would use this.
*/
typedef struct
{
off_t buff_offset; /* buffer offset in disk-image seeks. */
track_t index; /* Current track index in tocent. */
lba_t lba; /* Current LBA */
} internal_position_t;
CdIo_t * cdio_new (generic_img_private_t *p_env, cdio_funcs_t *p_funcs);
/* The below structure describes a specific CD Input driver */
typedef struct
{
driver_id_t id;
unsigned int flags;
const char *name;
const char *describe;
bool (*have_driver) (void);
CdIo_t *(*driver_open) (const char *psz_source_name);
CdIo_t *(*driver_open_am) (const char *psz_source_name,
const char *psz_access_mode);
char *(*get_default_device) (void);
bool (*is_device) (const char *psz_source_name);
char **(*get_devices) (void);
driver_return_code_t (*close_tray) (const char *psz_device);
} CdIo_driver_t;
/* The below array gives of the drivers that are currently available for
on a particular host. */
extern CdIo_driver_t CdIo_driver[CDIO_MAX_DRIVER];
/* The last valid entry of Cdio_driver. -1 means uninitialzed. -2
means some sort of error.
*/
extern int CdIo_last_driver;
/* The below array gives all drivers that can possibly appear.
on a particular host. */
extern CdIo_driver_t CdIo_all_drivers[CDIO_MAX_DRIVER+1];
/*!
Add/allocate a drive to the end of drives.
Use cdio_free_device_list() to free this device_list.
*/
void cdio_add_device_list(char **device_list[], const char *psz_drive,
unsigned int *i_drives);
driver_return_code_t close_tray_bsdi (const char *psz_drive);
driver_return_code_t close_tray_freebsd (const char *psz_drive);
driver_return_code_t close_tray_linux (const char *psz_drive);
driver_return_code_t close_tray_osx (const char *psz_drive);
driver_return_code_t close_tray_solaris (const char *psz_drive);
driver_return_code_t close_tray_win32 (const char *psz_drive);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __CDIO_PRIVATE_H__ */
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