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 "scsi.h"
21
22 typedef struct {
23 unsigned capacity; /* size in blocks */
24 Scsi_Device *device;
25 unsigned int vendor; /* vendor code, see sr_vendor.c */
26 unsigned long ms_offset; /* for reading multisession-CD's */
27 unsigned char sector_bit_size; /* sector size = 2^sector_bit_size */
28 unsigned char sector_bit_shift; /* sectors/FS block = 2^sector_bit_shift */
29 unsigned needs_sector_size:1; /* needs to get sector size */
30 unsigned use:1; /* is this device still supportable */
31 unsigned xa_flag:1; /* CD has XA sectors ? */
32 unsigned readcd_known:1; /* drive supports READ_CD (0xbe) */
33 unsigned readcd_cdda:1; /* reading audio data using READ_CD */
34 struct cdrom_device_info cdi;
35 } Scsi_CD;
36
37 extern Scsi_CD *scsi_CDs;
38
39 int sr_do_ioctl(int, unsigned char *, void *, unsigned, int, int, struct request_sense *);
40
41 int sr_lock_door(struct cdrom_device_info *, int);
42 int sr_tray_move(struct cdrom_device_info *, int);
43 int sr_drive_status(struct cdrom_device_info *, int);
44 int sr_disk_status(struct cdrom_device_info *);
45 int sr_get_last_session(struct cdrom_device_info *, struct cdrom_multisession *);
46 int sr_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);
47 int sr_reset(struct cdrom_device_info *);
48 int sr_select_speed(struct cdrom_device_info *cdi, int speed);
49 int sr_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
50 int sr_dev_ioctl(struct cdrom_device_info *, unsigned int, unsigned long);
51
52 int sr_read_sector(int minor, int lba, int blksize, unsigned char *dest);
53 int sr_is_xa(int minor);
54
55 /* sr_vendor.c */
56 void sr_vendor_init(int minor);
57 int sr_cd_check(struct cdrom_device_info *);
58 int sr_set_blocklength(int minor, int blocklength);
59
60 #endif
61
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