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/*

 *      sr.h by David Giller

 *      CD-ROM disk driver header file

 *

 *      adapted from:

 *      sd.h Copyright (C) 1992 Drew Eckhardt

 *      SCSI disk driver header file by

 *              Drew Eckhardt

 *

 *      <drew@colorado.edu>

 *

 *       Modified by Eric Youngdale eric@andante.org to

 *       add scatter-gather, multiple outstanding request, and other

 *       enhancements.

 */

#ifndef _SR_H

#define _SR_H

#include "scsi.h"

typedef struct {

        unsigned capacity;      /* size in blocks                       */

        Scsi_Device *device;

        unsigned int vendor;    /* vendor code, see sr_vendor.c         */

        unsigned long ms_offset;        /* for reading multisession-CD's        */

        unsigned char sector_bit_size;  /* sector size = 2^sector_bit_size      */

        unsigned char sector_bit_shift;         /* sectors/FS block = 2^sector_bit_shift */

        unsigned needs_sector_size:1;   /* needs to get sector size */

        unsigned use:1;         /* is this device still supportable     */

        unsigned xa_flag:1;     /* CD has XA sectors ? */

        unsigned readcd_known:1;        /* drive supports READ_CD (0xbe) */

        unsigned readcd_cdda:1; /* reading audio data using READ_CD */

        struct cdrom_device_info cdi;

} Scsi_CD;

extern Scsi_CD *scsi_CDs;

int sr_do_ioctl(int, unsigned char *, void *, unsigned, int, int, struct request_sense *);

int sr_lock_door(struct cdrom_device_info *, int);

int sr_tray_move(struct cdrom_device_info *, int);

int sr_drive_status(struct cdrom_device_info *, int);

int sr_disk_status(struct cdrom_device_info *);

int sr_get_last_session(struct cdrom_device_info *, struct cdrom_multisession *);

int sr_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);

int sr_reset(struct cdrom_device_info *);

int sr_select_speed(struct cdrom_device_info *cdi, int speed);

int sr_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);

int sr_dev_ioctl(struct cdrom_device_info *, unsigned int, unsigned long);

int sr_read_sector(int minor, int lba, int blksize, unsigned char *dest);

int sr_is_xa(int minor);

/* sr_vendor.c */

void sr_vendor_init(int minor);

int sr_cd_check(struct cdrom_device_info *);

int sr_set_blocklength(int minor, int blocklength);

#endif