303 lines
7.7 KiB
C
303 lines
7.7 KiB
C
/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
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#ifndef __TRANSPORT
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#define __TRANSPORT
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#include "libburn.h"
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#include "os.h"
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#include <pthread.h>
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/* sg data structures */
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#include <sys/types.h>
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/* see os.h for name of particular os-*.h where this is defined */
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#define BUFFER_SIZE BURN_OS_TRANSPORT_BUFFER_SIZE
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enum transfer_direction
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{ TO_DRIVE, FROM_DRIVE, NO_TRANSFER };
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/* end of sg data structures */
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/* generic 'drive' data structures */
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struct cue_sheet
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{
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int count;
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unsigned char *data;
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};
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struct params
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{
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int speed;
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int retries;
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};
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struct buffer
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{
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/* ts A61219:
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Added 4096 bytes reserve against possible buffer overflows.
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(Changed in sector.c buffer flush test from >= to > BUFFER_SIZE .
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This can at most cause a 1 sector overlap. Sometimes an offset
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of 16 byte is applied to the output data (in some RAW mode). ) */
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unsigned char data[BUFFER_SIZE + 4096];
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int sectors;
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int bytes;
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};
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struct command
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{
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unsigned char opcode[16];
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int oplen;
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int dir;
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unsigned char sense[128];
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int error;
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int retry;
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struct buffer *page;
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};
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struct burn_scsi_inquiry_data
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{
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char vendor[9];
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char product[17];
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char revision[5];
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int valid;
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};
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struct scsi_mode_data
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{
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int buffer_size;
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int dvdram_read;
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int dvdram_write;
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int dvdr_read;
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int dvdr_write;
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int dvdrom_read;
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int cdrw_read;
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int cdrw_write;
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int cdr_read;
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int cdr_write;
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int simulate;
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int max_read_speed;
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int max_write_speed;
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/* ts A61021 */
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int min_write_speed;
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/* ts A61225 : Results from ACh GET PERFORMANCE, Type 03h
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Speed values go into *_*_speed */
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int min_end_lba;
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int max_end_lba;
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struct burn_speed_descriptor *speed_descriptors;
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int cur_read_speed;
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int cur_write_speed;
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int retry_page_length;
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int retry_page_valid;
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int write_page_length;
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int write_page_valid;
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int c2_pointers;
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int valid;
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int underrun_proof;
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};
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/* ts A70112 : represents a single Formattable Capacity Descriptor as of
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mmc5r03c.pdf 6.24.3.3 . There can at most be 32 of them. */
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struct burn_format_descr {
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/* format type: e.g 0x00 is "Full", 0x15 is "Quick" */
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int type;
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/* the size in bytes derived from Number of Blocks */
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off_t size;
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/* the Type Dependent Parameter (usually the write alignment size) */
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unsigned tdp;
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};
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#define LIBBURN_SG_MAX_SIBLINGS 16
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/** Gets initialized in enumerate_common() and burn_drive_register() */
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struct burn_drive
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{
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int bus_no;
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int host;
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int id;
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int channel;
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int lun;
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char *devname;
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/* see os.h for name of particular os-*.h where this is defined */
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BURN_OS_TRANSPORT_DRIVE_ELEMENTS
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/* ts A60904 : ticket 62, contribution by elmom */
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/**
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Tells the index in scanned burn_drive_info array.
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-1 if fallen victim to burn_drive_info_forget()
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*/
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int global_index;
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pthread_mutex_t access_lock;
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enum burn_disc_status status;
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int erasable;
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/* ts A61201 from 46h GET CONFIGURATION */
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int current_profile;
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char current_profile_text[80];
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int current_is_cd_profile;
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int current_is_supported_profile;
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/* ts A70128 : MMC-to-MMC feature info from 46h for DVD-RW.
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Quite internal. Regard as opaque :)
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*/
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/* 1 = incremental recording available, 0 = not available */
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int current_has_feat21h;
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/* Link Size item number 0 from feature 0021h descriptor */
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int current_feat21h_link_size;
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/* Flags from feature 002Fh feature descriptor mmc5r03c.pdf 5.3.25 :
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bit1= DVD-RW supported
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bit2= Test Write available
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bit3= DVD-R DL supported
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bit6= Buffer Under-run Free recording available (page 05h BUFE)
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Value -1 indicates that no 002Fh was current in the features list.
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*/
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int current_feat2fh_byte4;
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/* ts A70114 : wether a DVD-RW media holds an incomplete session
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(which could need closing after write) */
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int needs_close_session;
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/* ts A61218 from 51h READ DISC INFORMATION */
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int bg_format_status; /* 0=needs format start, 1=needs format restart*/
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/* ts A70108 from 23h READ FORMAT CAPACITY mmc5r03c.pdf 6.24 */
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int format_descr_type; /* 1=unformatted, 2=formatted, 3=unclear */
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off_t format_curr_max_size; /* meaning depends on format_descr_type */
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unsigned format_curr_blsas; /* meaning depends on format_descr_type */
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int best_format_type;
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off_t best_format_size;
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/* The complete list of format descriptors as read with 23h */
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int num_format_descr;
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struct burn_format_descr format_descriptors[32];
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volatile int released;
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/* ts A61106 */
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int silent_on_scsi_error;
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int nwa; /* next writeable address */
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int alba; /* absolute lba */
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int rlba; /* relative lba in section */
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int start_lba;
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int end_lba;
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/* ts A70131 : from 51h READ DISC INFORMATION Number of Sessions (-1)*/
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int complete_sessions;
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/* ts A70129 :
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from 51h READ DISC INFORMATION Last Track Number in Last Session */
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int last_track_no;
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int toc_temp;
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struct burn_disc *disc; /* disc structure */
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int block_types[4];
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struct buffer *buffer;
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struct burn_progress progress;
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volatile int cancel;
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volatile enum burn_drive_status busy;
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/* transport functions */
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int (*grab) (struct burn_drive *);
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int (*release) (struct burn_drive *);
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/* ts A61021 */
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int (*drive_is_open) (struct burn_drive *);
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int (*issue_command) (struct burn_drive *, struct command *);
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/* lower level functions */
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void (*erase) (struct burn_drive *, int);
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void (*getcaps) (struct burn_drive *);
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/* ts A61021 */
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void (*read_atip) (struct burn_drive *);
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int (*write) (struct burn_drive *, int, struct buffer *);
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void (*read_toc) (struct burn_drive *);
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void (*lock) (struct burn_drive *);
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void (*unlock) (struct burn_drive *);
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void (*eject) (struct burn_drive *);
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void (*load) (struct burn_drive *);
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int (*start_unit) (struct burn_drive *);
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void (*read_disc_info) (struct burn_drive *);
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void (*read_sectors) (struct burn_drive *,
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int start,
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int len,
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const struct burn_read_opts *, struct buffer *);
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void (*perform_opc) (struct burn_drive *);
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void (*set_speed) (struct burn_drive *, int, int);
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void (*send_parameters) (struct burn_drive *,
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const struct burn_read_opts *);
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void (*send_write_parameters) (struct burn_drive *,
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const struct burn_write_opts *);
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void (*send_cue_sheet) (struct burn_drive *, struct cue_sheet *);
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/* ts A70205 : Announce size of a DVD-R[W] DAO session. */
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int (*reserve_track) (struct burn_drive *d, off_t size);
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void (*sync_cache) (struct burn_drive *);
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int (*get_erase_progress) (struct burn_drive *);
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int (*get_nwa) (struct burn_drive *, int trackno, int *lba, int *nwa);
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/* ts A70131 : obtain (possibly fake) TOC number and start lba of
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first track in last complete session */
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int (*read_multi_session_c1)(struct burn_drive *d,
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int *trackno, int *start);
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/* ts A61009 : removed d in favor of o->drive */
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/* void (*close_disc) (struct burn_drive * d,
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struct burn_write_opts * o);
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void (*close_session) (struct burn_drive * d,
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struct burn_write_opts * o);
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*/
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void (*close_disc) (struct burn_write_opts * o);
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void (*close_session) ( struct burn_write_opts * o);
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/* ts A61029 */
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void (*close_track_session) ( struct burn_drive *d,
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int session, int track);
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int (*test_unit_ready) (struct burn_drive * d);
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void (*probe_write_modes) (struct burn_drive * d);
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struct params params;
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struct burn_scsi_inquiry_data *idata;
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struct scsi_mode_data *mdata;
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int toc_entries;
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struct burn_toc_entry *toc_entry;
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/* ts A61023 : get size and free space of drive buffer */
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int (*read_buffer_capacity) (struct burn_drive *d);
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/* ts A61220 : format media (e.g. DVD+RW) */
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int (*format_unit) (struct burn_drive *d, off_t size, int flag);
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/* ts A70108 */
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/* mmc5r03c.pdf 6.24 : get list of available formats */
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int (*read_format_capacities) (struct burn_drive *d, int top_wanted);
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};
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/* end of generic 'drive' data structures */
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#endif /* __TRANSPORT */
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