Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

[linux-2.6-omap-h63xx.git] / include / linux / cdrom.h

diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index fcdc11b9609b7c2efc4318811375a30574d7c586..0b49e08d3cb0d9187649996012ab4503c5c73852 100644 (file)
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -910,6 +910,7 @@ struct mode_page_header {
 #ifdef __KERNEL__
 #include <linux/fs.h>          /* not really needed, later.. */
 #include <linux/device.h>
+#include <linux/list.h>
 
 struct packet_command
 {
@@ -934,7 +935,7 @@ 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 */
@@ -986,15 +987,15 @@ struct cdrom_device_ops {
 };
 
 /* the general block_device operations structure: */
-extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip,
-                       struct file *fp);
-extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp);
-extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi,
-               struct inode *ip, unsigned int cmd, unsigned long arg);
+extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
+                       fmode_t mode);
+extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode);
+extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
+                      fmode_t mode, unsigned int cmd, unsigned long arg);
 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;
@@ -1187,6 +1188,20 @@ struct media_event_desc {
 
 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 */