drivers/scsi/sr.h

   1 /*
   2  *      sr.h by David Giller
   3  *      CD-ROM disk driver header file
   4  *
   5  *      adapted from:
   6  *      sd.h Copyright (C) 1992 Drew Eckhardt
   7  *      SCSI disk driver header file by
   8  *              Drew Eckhardt
   9  *
  10  *      <drew@colorado.edu>
  11  *
  12  *       Modified by Eric Youngdale eric@andante.org to
  13  *       add scatter-gather, multiple outstanding request, and other
  14  *       enhancements.
  15  */
  16
  17 #ifndef _SR_H
  18 #define _SR_H
  19
  20 #include "scsi.h"
  21
  22 typedef struct {
  23         unsigned capacity;      /* size in blocks                       */
  24         Scsi_Device *device;
  25         unsigned int vendor;    /* vendor code, see sr_vendor.c         */
  26         unsigned long ms_offset;        /* for reading multisession-CD's        */
  27         unsigned char sector_bit_size;  /* sector size = 2^sector_bit_size      */
  28         unsigned char sector_bit_shift;         /* sectors/FS block = 2^sector_bit_shift */
  29         unsigned needs_sector_size:1;   /* needs to get sector size */
  30         unsigned use:1;         /* is this device still supportable     */
  31         unsigned xa_flag:1;     /* CD has XA sectors ? */
  32         unsigned readcd_known:1;        /* drive supports READ_CD (0xbe) */
  33         unsigned readcd_cdda:1; /* reading audio data using READ_CD */
  34         struct cdrom_device_info cdi;
  35 } Scsi_CD;
  36
  37 extern Scsi_CD *scsi_CDs;
  38
  39 int sr_do_ioctl(int, unsigned char *, void *, unsigned, int, int, struct request_sense *);
  40
  41 int sr_lock_door(struct cdrom_device_info *, int);
  42 int sr_tray_move(struct cdrom_device_info *, int);
  43 int sr_drive_status(struct cdrom_device_info *, int);
  44 int sr_disk_status(struct cdrom_device_info *);
  45 int sr_get_last_session(struct cdrom_device_info *, struct cdrom_multisession *);
  46 int sr_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);
  47 int sr_reset(struct cdrom_device_info *);
  48 int sr_select_speed(struct cdrom_device_info *cdi, int speed);
  49 int sr_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
  50 int sr_dev_ioctl(struct cdrom_device_info *, unsigned int, unsigned long);
  51
  52 int sr_read_sector(int minor, int lba, int blksize, unsigned char *dest);
  53 int sr_is_xa(int minor);
  54
  55 /* sr_vendor.c */
  56 void sr_vendor_init(int minor);
  57 int sr_cd_check(struct cdrom_device_info *);
  58 int sr_set_blocklength(int minor, int blocklength);
  59
  60 #endif