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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/*3 * Copyright (C) 2000 Jens Axboe <axboe@suse.de>4 * Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>5 *6 * May be copied or modified under the terms of the GNU General Public7 * License. See linux/COPYING for more information.8 *9 * Packet writing layer for ATAPI and SCSI CD-R, CD-RW, DVD-R, and10 * DVD-RW devices.11 *12 */13#ifndef _UAPI__PKTCDVD_H14#define _UAPI__PKTCDVD_H15 16#include <linux/types.h>17 18/*19 * UNUSED:20 * 1 for normal debug messages, 2 is very verbose. 0 to turn it off.21 */22#define PACKET_DEBUG 123 24#define MAX_WRITERS 825 26#define PKT_RB_POOL_SIZE 51227 28/*29 * How long we should hold a non-full packet before starting data gathering.30 */31#define PACKET_WAIT_TIME (HZ * 5 / 1000)32 33/*34 * No user-servicable parts beyond this point ->35 */36 37/*38 * device types39 */40#define PACKET_CDR 141#define PACKET_CDRW 242#define PACKET_DVDR 343#define PACKET_DVDRW 444 45/*46 * flags47 */48#define PACKET_WRITABLE 1 /* pd is writable */49#define PACKET_NWA_VALID 2 /* next writable address valid */50#define PACKET_LRA_VALID 3 /* last recorded address valid */51#define PACKET_MERGE_SEGS 4 /* perform segment merging to keep */52 /* underlying cdrom device happy */53 54/*55 * Disc status -- from READ_DISC_INFO56 */57#define PACKET_DISC_EMPTY 058#define PACKET_DISC_INCOMPLETE 159#define PACKET_DISC_COMPLETE 260#define PACKET_DISC_OTHER 361 62/*63 * write type, and corresponding data block type64 */65#define PACKET_MODE1 166#define PACKET_MODE2 267#define PACKET_BLOCK_MODE1 868#define PACKET_BLOCK_MODE2 1069 70/*71 * Last session/border status72 */73#define PACKET_SESSION_EMPTY 074#define PACKET_SESSION_INCOMPLETE 175#define PACKET_SESSION_RESERVED 276#define PACKET_SESSION_COMPLETE 377 78#define PACKET_MCN "4a656e734178626f65323030300000"79 80#undef PACKET_USE_LS81 82#define PKT_CTRL_CMD_SETUP 083#define PKT_CTRL_CMD_TEARDOWN 184#define PKT_CTRL_CMD_STATUS 285 86struct pkt_ctrl_command {87 __u32 command; /* in: Setup, teardown, status */88 __u32 dev_index; /* in/out: Device index */89 __u32 dev; /* in/out: Device nr for cdrw device */90 __u32 pkt_dev; /* in/out: Device nr for packet device */91 __u32 num_devices; /* out: Largest device index + 1 */92 __u32 padding; /* Not used */93};94 95/*96 * packet ioctls97 */98#define PACKET_IOCTL_MAGIC ('X')99#define PACKET_CTRL_CMD _IOWR(PACKET_IOCTL_MAGIC, 1, struct pkt_ctrl_command)100 101 102#endif /* _UAPI__PKTCDVD_H */103