patch-pre2.0.1 linux/include/linux/ucdrom.h

• Lines: 93
• Date: Sun May 12 08:13:08 1996
• Orig file: v1.3.100/linux/include/linux/ucdrom.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.100/linux/include/linux/ucdrom.h linux/include/linux/ucdrom.h
@@ -0,0 +1,92 @@
+/* ucdrom.h. Uniform cdrom data structures for cdrom.c. 	-*- linux-c -*-
+   Copyright (c) 1996 David van Leeuwen. 
+ */
+
+#ifndef LINUX_UCDROM_H
+#define LINUX_UCDROM_H
+
+struct cdrom_device_ops {
+/* routines */
+	int (*open) (dev_t, int);
+	void (*release) (dev_t);
+	int (*open_files) (dev_t);      /* number of open files */
+	int (*drive_status) (dev_t);
+	int (*disc_status) (dev_t);
+	int (*media_changed) (dev_t);
+	int (*tray_move) (dev_t, int);
+	int (*lock_door) (dev_t, int);
+	int (*select_speed) (dev_t, int);
+	int (*select_disc) (dev_t, int);
+	int (*get_last_session) (dev_t, struct cdrom_multisession *);
+	int (*get_mcn) (dev_t, struct cdrom_mcn *);
+	int (*reset) (dev_t dev);       /* hard reset device */
+	int (*audio_ioctl) (dev_t, unsigned int, void *); /* play stuff */
+	int (*dev_ioctl) (dev_t, unsigned int, unsigned long); /* dev-specific */
+/* specifications */
+	const int capability;           /* capability flags */
+	int mask;                       /* mask of capability: disables them */
+	const float speed;              /* maximum speed for reading data */
+	const int minors;               /* number of minor devs supported */
+	const int capacity;             /* number of discs in jukebox */
+/* device-related storage */
+	int options;                    /* options flags */
+	long mc_flags;                  /* media change buffer flags (2*16) */
+};
+
+/* capability flags */
+#define CDC_CLOSE_TRAY	0x1             /* caddy systems _can't_ close */
+#define CDC_OPEN_TRAY	0x2             /* but _can_ eject.  */
+#define CDC_LOCK	0x4             /* disable manual eject */
+#define CDC_SELECT_SPEED 0x8            /* programmable speed */
+#define CDC_SELECT_DISC	0x10            /* select disc from juke-box */
+#define CDC_MULTI_SESSION 0x20          /* read sessions>1 */
+#define CDC_MCN		0x40            /* Medium Catalog Number */
+#define CDC_MEDIA_CHANGED 0x80          /* media changed */
+#define CDC_PLAY_AUDIO	0x100           /* audio functions */
+
+/* drive status possibilities */
+#define CDS_NO_INFO	0               /* if not implemented */
+#define CDS_NO_DISC	1
+#define CDS_TRAY_OPEN	2
+#define CDS_DRIVE_NOT_READY	3
+#define CDS_DISC_OK	4
+
+/* disc status possibilities, other than CDS_NO_DISC */
+#define CDS_AUDIO	100
+#define CDS_DATA_1	101
+#define CDS_DATA_2	102
+#define CDS_XA_2_1	103
+#define CDS_XA_2_2	104
+
+/* User-configurable behavior options */
+#define CDO_AUTO_CLOSE	0x1             /* close tray on first open() */
+#define CDO_AUTO_EJECT	0x2             /* open tray on last release() */
+#define CDO_USE_FFLAGS	0x4             /* use O_NONBLOCK information on open */
+#define CDO_LOCK	0x8             /* lock tray on open files */
+#define CDO_CHECK_TYPE	0x10            /* check type on open for data */
+
+/* Some more ioctls to control these options */
+#define CDROM_SET_OPTIONS	0x5320
+#define CDROM_CLEAR_OPTIONS	0x5321
+#define CDROM_SELECT_SPEED	0x5322  /* head-speed */
+#define CDROM_SELECT_DISC	0x5323  /* for juke-boxes */
+#define CDROM_MEDIA_CHANGED	0x5325
+#define CDROM_DRIVE_STATUS	0x5326  /* tray position, etc. */
+#define CDROM_DISC_STATUS	0x5327  /* disc type etc. */
+
+/* Rename and old ioctl */
+#define CDROM_GET_MCN	CDROM_GET_UPC	/* medium catalog number */
+
+/* the general file operations structure: */
+extern struct file_operations cdrom_fops;
+
+extern int register_cdrom(int major, char *name,
+                          struct cdrom_device_ops *cdo);
+extern int unregister_cdrom(int major, char *name);
+
+#endif	/* LINUX_UCDROM_H */
+/*
+ * Local variables:
+ * comment-column: 40
+ * End:
+ */