/*      $NetBSD: linux_cdrom.h,v 1.8 2008/04/28 20:23:43 martin Exp $   */

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Eric Haszlakiewicz.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _LINUX_CDROM_H
#define _LINUX_CDROM_H

#include <machine/endian.h>

#define LINUX_CDROMPAUSE        0x5301
#define LINUX_CDROMRESUME       0x5302
#define LINUX_CDROMPLAYMSF      0x5303  /* (struct linux_cdrom_msf) */
#define LINUX_CDROMPLAYTRKIND   0x5304  /* (struct linux_cdrom_ti) */
#define LINUX_CDROMREADTOCHDR   0x5305  /* (struct linux_cdrom_tochdr) */
#define LINUX_CDROMREADTOCENTRY 0x5306  /* (struct linux_cdrom_tocentry) */
#define LINUX_CDROMSTOP         0x5307
#define LINUX_CDROMSTART        0x5308
#define LINUX_CDROMEJECT        0x5309
#define LINUX_CDROMVOLCTRL      0x530a  /* (struct linux_cdrom_volctrl) */
#define LINUX_CDROMSUBCHNL      0x530b  /* (struct linux_cdrom_subchnl) */
#define LINUX_CDROMEJECT_SW     0x530f  /* arg: 0 or 1 */
#define LINUX_CDROMMULTISESSION 0x5310  /* (struct linux_cdrom_multisession) */
#define LINUX_CDROMRESET        0x5312
#define LINUX_CDROMVOLREAD      0x5313  /* (struct linux_cdrom_volctrl) */
#define LINUX_CDROMPLAYBLK      0x5317  /* (struct linux_cdrom_blk) */
#define LINUX_CDROMCLOSETRAY    0x5319  /* */
#define LINUX_CDROM_SET_OPTIONS 0x5320  /* int */
#define LINUX_CDROM_CLEAR_OPTIONS       0x5321  /* int */
#define LINUX_CDROM_SELECT_SPEED        0x5322
#define LINUX_CDROM_SELECT_DISC         0x5323
#define LINUX_CDROM_MEDIA_CHANGED       0x5325
#define LINUX_CDROM_DRIVE_STATUS        0x5326
#define LINUX_CDROM_DISC_STATUS         0x5327
#define LINUX_CDROM_CHANGER_NSLOTS      0x5328
#define LINUX_CDROM_LOCKDOOR            0x5329
#define LINUX_CDROM_DEBUG               0x5330
#define LINUX_CDROM_GET_CAPABILITY      0x5331

/* DVD-ROM Specific ioctls */
#define LINUX_DVD_READ_STRUCT   0x5390  /* Read structure */
#define LINUX_DVD_WRITE_STRUCT  0x5391  /* Write structure */
#define LINUX_DVD_AUTH          0x5392  /* Authentication */

struct linux_cdrom_blk {
        unsigned from;
        unsigned short len;
};

struct linux_cdrom_msf {
        u_char  cdmsf_min0;     /* start minute */
        u_char  cdmsf_sec0;     /* start second */
        u_char  cdmsf_frame0;   /* start frame */
        u_char  cdmsf_min1;     /* end minute */
        u_char  cdmsf_sec1;     /* end second */
        u_char  cdmsf_frame1;   /* end frame */
};

struct linux_cdrom_ti {
        u_char  cdti_trk0;      /* start track */
        u_char  cdti_ind0;      /* start index */
        u_char  cdti_trk1;      /* end track */
        u_char  cdti_ind1;      /* end index */
};

struct linux_cdrom_tochdr {
        u_char  cdth_trk0;      /* start track */
        u_char  cdth_trk1;      /* end track */
};

struct linux_cdrom_msf0 {
        u_char  minute;
        u_char  second;
        u_char  frame;
};

union linux_cdrom_addr {
        struct  linux_cdrom_msf0 msf;
        int     lba;
};

struct linux_cdrom_tocentry {
        u_char  cdte_track;
        u_char  cdte_adr        :4;
        u_char  cdte_ctrl       :4;
        u_char  cdte_format;
        union   linux_cdrom_addr cdte_addr;
        u_char  cdte_datamode;
};

struct linux_cdrom_subchnl {
        u_char  cdsc_format;
        u_char  cdsc_audiostatus;
        u_char  cdsc_adr:       4;
        u_char  cdsc_ctrl:      4;
        u_char  cdsc_trk;
        u_char  cdsc_ind;
        union   linux_cdrom_addr cdsc_absaddr;
        union   linux_cdrom_addr cdsc_reladdr;
};

struct linux_cdrom_volctrl {
        u_char  channel0;
        u_char  channel1;
        u_char  channel2;
        u_char  channel3;
};

struct linux_cdrom_multisession {
        union linux_cdrom_addr addr;
        u_char xa_flag;
        u_char addr_format;
};

struct linux_cdrom_mechstat_header {
#if BYTE_ORDER == BIG_ENDIAN
        u_int8_t fault          : 1;
        u_int8_t changer_state  : 2;
        u_int8_t curslot        : 5;
        u_int8_t mech_state     : 3;
        u_int8_t door_open      : 1;
        u_int8_t reserved1      : 4;
#elif BYTE_ORDER == LITTLE_ENDIAN
        u_int8_t curslot        : 5;
        u_int8_t changer_state  : 2;
        u_int8_t fault          : 1;
        u_int8_t reserved1      : 4;
        u_int8_t door_open      : 1;
        u_int8_t mech_state     : 3;
#endif
        u_int8_t curlba[3];
        u_int8_t nslots;
        u_int16_t slot_tablelen;
};

struct linux_cdrom_slot {
#if BYTE_ORDER == BIG_ENDIAN
        u_int8_t disc_present   : 1;
        u_int8_t reserved1      : 6;
        u_int8_t change         : 1;
#elif BYTE_ORDER == LITTLE_ENDIAN
        u_int8_t change         : 1;
        u_int8_t reserved1      : 6;
        u_int8_t disc_present   : 1;
#endif
        u_int8_t reserved2[3];
};

#define LINUX_CDROM_MAX_SLOTS   256

struct linux_cdrom_changer_info {
        struct linux_cdrom_mechstat_header hdr;
        struct linux_cdrom_slot slots[LINUX_CDROM_MAX_SLOTS];
};

#endif /* !_LINUX_CDROM_H */