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