#ifdef __KERNEL__
#include <linux/fs.h> /* not really needed, later.. */
#include <linux/device.h>
+#include <linux/list.h>
struct packet_command
{
/* Uniform cdrom data structures for cdrom.c */
struct cdrom_device_info {
struct cdrom_device_ops *ops; /* link to device_ops */
- struct cdrom_device_info *next; /* next device_info for this major */
+ struct list_head list; /* linked list of all device_info */
struct gendisk *disk; /* matching block layer disk */
void *handle; /* driver-dependent data */
/* specifications */
extern int cdrom_media_changed(struct cdrom_device_info *);
extern int register_cdrom(struct cdrom_device_info *cdi);
-extern int unregister_cdrom(struct cdrom_device_info *cdi);
+extern void unregister_cdrom(struct cdrom_device_info *cdi);
typedef struct {
int data;
extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med);
+static inline void lba_to_msf(int lba, u8 *m, u8 *s, u8 *f)
+{
+ lba += CD_MSF_OFFSET;
+ lba &= 0xffffff; /* negative lbas use only 24 bits */
+ *m = lba / (CD_SECS * CD_FRAMES);
+ lba %= (CD_SECS * CD_FRAMES);
+ *s = lba / CD_FRAMES;
+ *f = lba % CD_FRAMES;
+}
+
+static inline int msf_to_lba(u8 m, u8 s, u8 f)
+{
+ return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
+}
#endif /* End of kernel only stuff */
#endif /* _LINUX_CDROM_H */