sr.h
上传用户：lgb322
上传日期：2013-02-24
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文件大小：2k
- /*
- * 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
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