| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 <linux/genhd.h> |
| 21 | #include <linux/kref.h> |
| 22 | |
| 23 | struct scsi_device; |
| 24 | |
| 25 | /* The CDROM is fairly slow, so we need a little extra time */ |
| 26 | /* In fact, it is very slow if it has to spin up first */ |
| 27 | #define IOCTL_TIMEOUT 30*HZ |
| 28 | |
| 29 | |
| 30 | typedef struct scsi_cd { |
| 31 | struct scsi_driver *driver; |
| 32 | unsigned capacity; /* size in blocks */ |
| 33 | struct scsi_device *device; |
| 34 | unsigned int vendor; /* vendor code, see sr_vendor.c */ |
| 35 | unsigned long ms_offset; /* for reading multisession-CD's */ |
| 36 | unsigned needs_sector_size:1; /* needs to get sector size */ |
| 37 | unsigned use:1; /* is this device still supportable */ |
| 38 | unsigned xa_flag:1; /* CD has XA sectors ? */ |
| 39 | unsigned readcd_known:1; /* drive supports READ_CD (0xbe) */ |
| 40 | unsigned readcd_cdda:1; /* reading audio data using READ_CD */ |
| 41 | struct cdrom_device_info cdi; |
| 42 | /* We hold gendisk and scsi_device references on probe and use |
| 43 | * the refs on this kref to decide when to release them */ |
| 44 | struct kref kref; |
| 45 | struct gendisk *disk; |
| 46 | } Scsi_CD; |
| 47 | |
| 48 | int sr_do_ioctl(Scsi_CD *, struct packet_command *); |
| 49 | |
| 50 | int sr_lock_door(struct cdrom_device_info *, int); |
| 51 | int sr_tray_move(struct cdrom_device_info *, int); |
| 52 | int sr_drive_status(struct cdrom_device_info *, int); |
| 53 | int sr_disk_status(struct cdrom_device_info *); |
| 54 | int sr_get_last_session(struct cdrom_device_info *, struct cdrom_multisession *); |
| 55 | int sr_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *); |
| 56 | int sr_reset(struct cdrom_device_info *); |
| 57 | int sr_select_speed(struct cdrom_device_info *cdi, int speed); |
| 58 | int sr_audio_ioctl(struct cdrom_device_info *, unsigned int, void *); |
| 59 | int sr_dev_ioctl(struct cdrom_device_info *, unsigned int, unsigned long); |
| 60 | |
| 61 | int sr_is_xa(Scsi_CD *); |
| 62 | |
| 63 | /* sr_vendor.c */ |
| 64 | void sr_vendor_init(Scsi_CD *); |
| 65 | int sr_cd_check(struct cdrom_device_info *); |
| 66 | int sr_set_blocklength(Scsi_CD *, int blocklength); |
| 67 | |
| 68 | #endif |