patch-2.1.63 linux/drivers/char/rtrack.h

• Lines: 26
• Date: Tue Nov 4 10:23:25 1997
• Orig file: v2.1.62/linux/drivers/char/rtrack.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.62/linux/drivers/char/rtrack.h linux/drivers/char/rtrack.h
@@ -0,0 +1,25 @@
+/* RadioTrack (RadioReveal) include file.
+ * (c) 1997 M. Kirkwood
+ *
+ * Not in include/linux/ because there's no need for anyone
+ * to know about these details, I reckon.
+ */
+
+#ifndef __RTRACK_H
+#define __RTRACK_H
+
+#include <linux/radio.h>
+
+void radiotrack_init(void);
+int rt_setvol(struct radio_device *dev, int vol);
+int rt_setband(struct radio_device *dev, int vol);
+int rt_setfreq(struct radio_device *dev, int vol);
+int rt_getsigstr(struct radio_device *dev);
+
+/* frequency encoding stuff... */
+/* we have to careful not to introduce fp stuff here */
+#define	RTRACK_ENCODE(x)	(((((x)*2)/5)-(40*88))+0xf6c)
+#define	RTRACK_DECODE(x)	(((((x)-0xf6c)+(40*88))*5)/2)
+/* we shouldn't actually need the decode macro (or the excessive bracketing :-) */
+
+#endif /* __RTRACK_H */