patch-2.3.34 linux/drivers/char/audiochip.h

• Lines: 61
• Date: Thu Dec 16 13:59:38 1999
• Orig file: v2.3.33/linux/drivers/char/audiochip.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.33/linux/drivers/char/audiochip.h linux/drivers/char/audiochip.h
@@ -0,0 +1,60 @@
+#ifndef AUDIOCHIP_H
+#define AUDIOCHIP_H
+
+/* ---------------------------------------------------------------------- */
+
+#define MIN(a,b) (((a)>(b))?(b):(a))
+#define MAX(a,b) (((a)>(b))?(a):(b))
+
+/* v4l device was opened in Radio mode */
+#define AUDC_SET_RADIO        _IO('m',2)
+/* select from TV,radio,extern,MUTE */
+#define AUDC_SET_INPUT        _IOW('m',17,int)
+
+/* all the stuff below is obsolete and just here for reference.  I'll
+ * remove it once the driver is tested and works fine.
+ *
+ * Instead creating alot of tiny API's for all kinds of different
+ * chips, we'll just pass throuth the v4l ioctl structs (v4l2 not
+ * yet...).  It is a bit less flexible, but most/all used i2c chips
+ * make sense in v4l context only.  So I think that's acceptable...
+ */
+
+#if 0
+
+/* TODO (if it is ever [to be] accessible in the V4L[2] spec):
+ *   maybe fade? (back/front)
+ * notes:
+ * NEWCHANNEL and SWITCH_MUTE are here because the MSP3400 has a special
+ * routine to go through when it tunes in to a new channel before turning
+ * back on the sound.
+ * Either SET_RADIO, NEWCHANNEL, and SWITCH_MUTE or SET_INPUT need to be
+ * implemented (MSP3400 uses SET_RADIO to select inputs, and SWITCH_MUTE for
+ * channel-change mute -- TEA6300 et al use SET_AUDIO to select input [TV, 
+ * radio, external, or MUTE]).  If both methods are implemented, you get a
+ * cookie for doing such a good job! :)
+ */
+
+#define AUDC_SET_TVNORM       _IOW('m',1,int)  /* TV mode + PAL/SECAM/NTSC  */
+#define AUDC_NEWCHANNEL       _IO('m',3)       /* indicate new chan - off mute */
+
+#define AUDC_GET_VOLUME_LEFT  _IOR('m',4,__u16)
+#define AUDC_GET_VOLUME_RIGHT _IOR('m',5,__u16)
+#define AUDC_SET_VOLUME_LEFT  _IOW('m',6,__u16)
+#define AUDC_SET_VOLUME_RIGHT _IOW('m',7,__u16)
+
+#define AUDC_GET_STEREO       _IOR('m',8,__u16)
+#define AUDC_SET_STEREO       _IOW('m',9,__u16)
+
+#define AUDC_GET_DC           _IOR('m',10,__u16)/* ??? */
+
+#define AUDC_GET_BASS         _IOR('m',11,__u16)
+#define AUDC_SET_BASS         _IOW('m',12,__u16)
+#define AUDC_GET_TREBLE       _IOR('m',13,__u16)
+#define AUDC_SET_TREBLE       _IOW('m',14,__u16)
+
+#define AUDC_GET_UNIT         _IOR('m',15,int) /* ??? - unimplemented in MSP3400 */
+#define AUDC_SWITCH_MUTE      _IO('m',16)      /* turn on mute */
+#endif
+
+#endif /* AUDIOCHIP_H */