drivers/scsi/sr.h

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 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@aib.com 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 <linux/config.h>
 21
 22 #include"scsi.h"
 23
 24 typedefstruct
 25 {
 26 unsigned capacity;/* size in blocks */
 27 unsigned sector_size;/* size in bytes */
 28  Scsi_Device *device;
 29 unsigned int vendor;/* vendor code, see sr_vendor.c */
 30 unsigned long ms_offset;/* for reading multisession-CD's */
 31 unsigned char sector_bit_size;/* sector size = 2^sector_bit_size */
 32 unsigned char sector_bit_shift;/* sectors/FS block = 2^sector_bit_shift*/
 33 unsigned needs_sector_size:1;/* needs to get sector size */
 34 unsigned ten:1;/* support ten byte commands */
 35 unsigned remap:1;/* support remapping */
 36 unsigned use:1;/* is this device still supportable */
 37 unsigned xa_flag:1;/* CD has XA sectors */
 38 struct cdrom_device_info cdi;
 39 } Scsi_CD;
 40
 41 extern Scsi_CD * scsi_CDs;
 42
 43 intsr_do_ioctl(int,unsigned char*,void*,unsigned);
 44
 45 intsr_lock_door(struct cdrom_device_info*,int);
 46 intsr_tray_move(struct cdrom_device_info*,int);
 47 intsr_drive_status(struct cdrom_device_info*,int);
 48 intsr_disk_status(struct cdrom_device_info*);
 49 intsr_get_last_session(struct cdrom_device_info*,struct cdrom_multisession*);
 50 intsr_get_mcn(struct cdrom_device_info*,struct cdrom_mcn*);
 51 intsr_reset(struct cdrom_device_info*);
 52 intsr_audio_ioctl(struct cdrom_device_info*,unsigned int,void*);
 53 intsr_dev_ioctl(struct cdrom_device_info*,unsigned int,unsigned long);
 54
 55 /* vendor-specific */
 56 #ifdef CONFIG_BLK_DEV_SR_VENDOR
 57 voidsr_vendor_init(int minor);
 58 intsr_cd_check(struct cdrom_device_info*);
 59 intsr_read_sector(int minor,int lba,int blksize,unsigned char*dest);
 60
 61 #endif
 62
 63 #endif