Prepare for factoring out some common code (see ChangeLog for details).

1 files changed, 18 insertions, 3 deletions

diff --git a/linux/drivers/media/video/cx88/cx88-blackbird.c b/linux/drivers/media/video/cx88/cx88-blackbird.c
index 0fe3e334a..03adcd1d4 100644
--- a/linux/drivers/media/video/cx88/cx88-blackbird.c
+++ b/linux/drivers/media/video/cx88/cx88-blackbird.c
@@ -1,5 +1,5 @@
 /*
- * $Id: cx88-blackbird.c,v 1.29 2005/08/16 11:43:43 catalin Exp $
+ * $Id: cx88-blackbird.c,v 1.30 2005/08/16 14:49:21 catalin Exp $
  *
  *  Support for a cx23416 mpeg encoder via cx2388x host port.
  *  "blackbird" reference design.
@@ -971,10 +971,20 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file,
 	return 0;
 }
 
+int (*cx88_ioctl_hook)(struct inode *inode, struct file *file,
+			unsigned int cmd, void *arg);
+unsigned int (*cx88_ioctl_translator)(unsigned int cmd);
+
+static unsigned int mpeg_translate_ioctl(unsigned int cmd)
+{
+	return cmd;
+}
+
 static int mpeg_ioctl(struct inode *inode, struct file *file,
-		       unsigned int cmd, unsigned long arg)
+			unsigned int cmd, unsigned long arg)
 {
-	return video_usercopy(inode, file, cmd, arg, mpeg_do_ioctl);
+	cmd = cx88_ioctl_translator( cmd );
+	return video_usercopy(inode, file, cmd, arg, cx88_ioctl_hook);
 }
 
 static int mpeg_open(struct inode *inode, struct file *file)
@@ -1209,6 +1219,8 @@ static int blackbird_init(void)
 	printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
 	       SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
 #endif
+	cx88_ioctl_hook = mpeg_do_ioctl;
+	cx88_ioctl_translator = mpeg_translate_ioctl;
 	return pci_register_driver(&blackbird_pci_driver);
 }
 
@@ -1220,6 +1232,9 @@ static void blackbird_fini(void)
 module_init(blackbird_init);
 module_exit(blackbird_fini);
 
+EXPORT_SYMBOL(cx88_ioctl_hook);
+EXPORT_SYMBOL(cx88_ioctl_translator);
+
 /* ----------------------------------------------------------- */
 /*
  * Local variables: