TTY: serial, remove dead code from 68328
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / sr.h
blob37c8f6b175102aa59999ea9a544aadfcb4902ac5
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
10 * <drew@colorado.edu>
12 * Modified by Eric Youngdale eric@andante.org to
13 * add scatter-gather, multiple outstanding request, and other
14 * enhancements.
17 #ifndef _SR_H
18 #define _SR_H
20 #include <linux/genhd.h>
21 #include <linux/kref.h>
23 #define MAX_RETRIES 3
24 #define SR_TIMEOUT (30 * HZ)
26 struct scsi_device;
28 /* The CDROM is fairly slow, so we need a little extra time */
29 /* In fact, it is very slow if it has to spin up first */
30 #define IOCTL_TIMEOUT 30*HZ
33 typedef struct scsi_cd {
34 struct scsi_driver *driver;
35 unsigned capacity; /* size in blocks */
36 struct scsi_device *device;
37 unsigned int vendor; /* vendor code, see sr_vendor.c */
38 unsigned long ms_offset; /* for reading multisession-CD's */
39 unsigned use:1; /* is this device still supportable */
40 unsigned xa_flag:1; /* CD has XA sectors ? */
41 unsigned readcd_known:1; /* drive supports READ_CD (0xbe) */
42 unsigned readcd_cdda:1; /* reading audio data using READ_CD */
43 unsigned media_present:1; /* media is present */
45 /* GET_EVENT spurious event handling, blk layer guarantees exclusion */
46 int tur_mismatch; /* nr of get_event TUR mismatches */
47 bool tur_changed:1; /* changed according to TUR */
48 bool get_event_changed:1; /* changed according to GET_EVENT */
49 bool ignore_get_event:1; /* GET_EVENT is unreliable, use TUR */
51 struct cdrom_device_info cdi;
52 /* We hold gendisk and scsi_device references on probe and use
53 * the refs on this kref to decide when to release them */
54 struct kref kref;
55 struct gendisk *disk;
56 } Scsi_CD;
58 int sr_do_ioctl(Scsi_CD *, struct packet_command *);
60 int sr_lock_door(struct cdrom_device_info *, int);
61 int sr_tray_move(struct cdrom_device_info *, int);
62 int sr_drive_status(struct cdrom_device_info *, int);
63 int sr_disk_status(struct cdrom_device_info *);
64 int sr_get_last_session(struct cdrom_device_info *, struct cdrom_multisession *);
65 int sr_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);
66 int sr_reset(struct cdrom_device_info *);
67 int sr_select_speed(struct cdrom_device_info *cdi, int speed);
68 int sr_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
70 int sr_is_xa(Scsi_CD *);
72 /* sr_vendor.c */
73 void sr_vendor_init(Scsi_CD *);
74 int sr_cd_check(struct cdrom_device_info *);
75 int sr_set_blocklength(Scsi_CD *, int blocklength);
77 #endif