| /* |
| * 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 <linux/genhd.h> |
| #include <linux/kref.h> |
| |
| struct scsi_device; |
| |
| /* The CDROM is fairly slow, so we need a little extra time */ |
| /* In fact, it is very slow if it has to spin up first */ |
| #define IOCTL_TIMEOUT 30*HZ |
| |
| |
| typedef struct scsi_cd { |
| struct scsi_driver *driver; |
| unsigned capacity; /* size in blocks */ |
| struct scsi_device *device; |
| unsigned int vendor; /* vendor code, see sr_vendor.c */ |
| unsigned long ms_offset; /* for reading multisession-CD's */ |
| 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; |
| /* We hold gendisk and scsi_device references on probe and use |
| * the refs on this kref to decide when to release them */ |
| struct kref kref; |
| struct gendisk *disk; |
| } Scsi_CD; |
| |
| int sr_do_ioctl(Scsi_CD *, struct packet_command *); |
| |
| 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_is_xa(Scsi_CD *); |
| |
| /* sr_vendor.c */ |
| void sr_vendor_init(Scsi_CD *); |
| int sr_cd_check(struct cdrom_device_info *); |
| int sr_set_blocklength(Scsi_CD *, int blocklength); |
| |
| #endif |