Initial import

libburn/transport.h

@@ -0,0 +1,162 @@
+/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
+
+#ifndef __TRANSPORT
+#define __TRANSPORT
+
+#include "libburn.h"
+
+#include <pthread.h>
+/* sg data structures */
+#include <sys/types.h>
+#include <scsi/sg.h>
+#include <scsi/scsi.h>
+
+/* kludge! glibc headers don't define all the SCSI shit that we use! */
+#ifndef SG_GET_ACCESS_COUNT
+#  define SG_GET_ACCESS_COUNT 0x2289
+#endif
+
+#define BUFFER_SIZE 65536
+
+enum transfer_direction
+{ TO_DRIVE, FROM_DRIVE, NO_TRANSFER };
+
+/* end of sg data structures */
+
+/* generic 'drive' data structures */
+
+struct cue_sheet
+{
+	int count;
+	unsigned char *data;
+};
+
+struct params
+{
+	int speed;
+	int retries;
+};
+
+struct buffer
+{
+	unsigned char data[BUFFER_SIZE];
+	int sectors;
+	int bytes;
+};
+
+struct command
+{
+	unsigned char opcode[16];
+	int oplen;
+	int dir;
+	unsigned char sense[128];
+	int error;
+	int retry;
+	struct buffer *page;
+};
+
+struct scsi_inquiry_data
+{
+	char vendor[9];
+	char product[17];
+	char revision[5];
+	int valid;
+};
+
+struct scsi_mode_data
+{
+	int buffer_size;
+	int dvdram_read;
+	int dvdram_write;
+	int dvdr_read;
+	int dvdr_write;
+	int dvdrom_read;
+	int cdrw_read;
+	int cdrw_write;
+	int cdr_read;
+	int cdr_write;
+	int simulate;
+	int max_read_speed;
+	int max_write_speed;
+	int cur_read_speed;
+	int cur_write_speed;
+	int retry_page_length;
+	int retry_page_valid;
+	int write_page_length;
+	int write_page_valid;
+	int c2_pointers;
+	int valid;
+	int underrun_proof;
+};
+
+struct burn_drive
+{
+	int host;
+	int id;
+	int channel;
+	int lun;
+	char *devname;
+	int fd;
+
+	pthread_mutex_t access_lock;
+
+	enum burn_disc_status status;
+	int erasable;
+	volatile int released;
+	int nwa;		/* next writeable address */
+	int alba;		/* absolute lba */
+	int rlba;		/* relative lba in section */
+	int start_lba;
+	int end_lba;
+	int toc_temp;
+	struct burn_disc *disc;	/* disc structure */
+	int block_types[4];
+	struct buffer *buffer;
+	struct burn_progress progress;
+
+	volatile int cancel;
+	volatile enum burn_drive_status busy;
+/* transport functions */
+	int (*grab) (struct burn_drive *);
+	int (*release) (struct burn_drive *);
+	int (*issue_command) (struct burn_drive *, struct command *);
+
+/* lower level functions */
+	void (*erase) (struct burn_drive *, int);
+	void (*getcaps) (struct burn_drive *);
+	int (*write) (struct burn_drive *, int, struct buffer *);
+	void (*read_toc) (struct burn_drive *);
+	void (*lock) (struct burn_drive *);
+	void (*unlock) (struct burn_drive *);
+	void (*eject) (struct burn_drive *);
+	void (*load) (struct burn_drive *);
+	void (*read_disc_info) (struct burn_drive *);
+	void (*read_sectors) (struct burn_drive *,
+			      int start,
+			      int len,
+			      const struct burn_read_opts *, struct buffer *);
+	void (*perform_opc) (struct burn_drive *);
+	void (*set_speed) (struct burn_drive *, int, int);
+	void (*send_parameters) (struct burn_drive *,
+				 const struct burn_read_opts *);
+	void (*send_write_parameters) (struct burn_drive *,
+				       const struct burn_write_opts *);
+	void (*send_cue_sheet) (struct burn_drive *, struct cue_sheet *);
+	void (*sync_cache) (struct burn_drive *);
+	int (*get_erase_progress) (struct burn_drive *);
+	int (*get_nwa) (struct burn_drive *);
+	void (*close_disc) (struct burn_drive * d, struct burn_write_opts * o);
+	void (*close_session) (struct burn_drive * d,
+			       struct burn_write_opts * o);
+	int (*test_unit_ready) (struct burn_drive * d);
+	void (*probe_write_modes) (struct burn_drive * d);
+	struct params params;
+	struct scsi_inquiry_data *idata;
+	struct scsi_mode_data *mdata;
+	int toc_entries;
+	struct burn_toc_entry *toc_entry;
+};
+
+/* end of generic 'drive' data structures */
+
+#endif /* __TRANSPORT */