103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
/*
|
|
* Copyright (C) 2000 Jens Axboe <axboe@suse.de>
|
|
* Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>
|
|
*
|
|
* May be copied or modified under the terms of the GNU General Public
|
|
* License. See linux/COPYING for more information.
|
|
*
|
|
* Packet writing layer for ATAPI and SCSI CD-R, CD-RW, DVD-R, and
|
|
* DVD-RW devices.
|
|
*
|
|
*/
|
|
#ifndef _UAPI__PKTCDVD_H
|
|
#define _UAPI__PKTCDVD_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* UNUSED:
|
|
* 1 for normal debug messages, 2 is very verbose. 0 to turn it off.
|
|
*/
|
|
#define PACKET_DEBUG 1
|
|
|
|
#define MAX_WRITERS 8
|
|
|
|
#define PKT_RB_POOL_SIZE 512
|
|
|
|
/*
|
|
* How long we should hold a non-full packet before starting data gathering.
|
|
*/
|
|
#define PACKET_WAIT_TIME (HZ * 5 / 1000)
|
|
|
|
/*
|
|
* No user-servicable parts beyond this point ->
|
|
*/
|
|
|
|
/*
|
|
* device types
|
|
*/
|
|
#define PACKET_CDR 1
|
|
#define PACKET_CDRW 2
|
|
#define PACKET_DVDR 3
|
|
#define PACKET_DVDRW 4
|
|
|
|
/*
|
|
* flags
|
|
*/
|
|
#define PACKET_WRITABLE 1 /* pd is writable */
|
|
#define PACKET_NWA_VALID 2 /* next writable address valid */
|
|
#define PACKET_LRA_VALID 3 /* last recorded address valid */
|
|
#define PACKET_MERGE_SEGS 4 /* perform segment merging to keep */
|
|
/* underlying cdrom device happy */
|
|
|
|
/*
|
|
* Disc status -- from READ_DISC_INFO
|
|
*/
|
|
#define PACKET_DISC_EMPTY 0
|
|
#define PACKET_DISC_INCOMPLETE 1
|
|
#define PACKET_DISC_COMPLETE 2
|
|
#define PACKET_DISC_OTHER 3
|
|
|
|
/*
|
|
* write type, and corresponding data block type
|
|
*/
|
|
#define PACKET_MODE1 1
|
|
#define PACKET_MODE2 2
|
|
#define PACKET_BLOCK_MODE1 8
|
|
#define PACKET_BLOCK_MODE2 10
|
|
|
|
/*
|
|
* Last session/border status
|
|
*/
|
|
#define PACKET_SESSION_EMPTY 0
|
|
#define PACKET_SESSION_INCOMPLETE 1
|
|
#define PACKET_SESSION_RESERVED 2
|
|
#define PACKET_SESSION_COMPLETE 3
|
|
|
|
#define PACKET_MCN "4a656e734178626f65323030300000"
|
|
|
|
#undef PACKET_USE_LS
|
|
|
|
#define PKT_CTRL_CMD_SETUP 0
|
|
#define PKT_CTRL_CMD_TEARDOWN 1
|
|
#define PKT_CTRL_CMD_STATUS 2
|
|
|
|
struct pkt_ctrl_command {
|
|
__u32 command; /* in: Setup, teardown, status */
|
|
__u32 dev_index; /* in/out: Device index */
|
|
__u32 dev; /* in/out: Device nr for cdrw device */
|
|
__u32 pkt_dev; /* in/out: Device nr for packet device */
|
|
__u32 num_devices; /* out: Largest device index + 1 */
|
|
__u32 padding; /* Not used */
|
|
};
|
|
|
|
/*
|
|
* packet ioctls
|
|
*/
|
|
#define PACKET_IOCTL_MAGIC ('X')
|
|
#define PACKET_CTRL_CMD _IOWR(PACKET_IOCTL_MAGIC, 1, struct pkt_ctrl_command)
|
|
|
|
|
|
#endif /* _UAPI__PKTCDVD_H */
|