drivers/char/audiochip.h

   1 #ifndef AUDIOCHIP_H
   2 #define AUDIOCHIP_H
   3
   4 /* ---------------------------------------------------------------------- */
   5
   6 #define MIN(a,b) (((a)>(b))?(b):(a))
   7 #define MAX(a,b) (((a)>(b))?(a):(b))
   8
   9 /* v4l device was opened in Radio mode */
  10 #define AUDC_SET_RADIO        _IO('m',2)
  11 /* select from TV,radio,extern,MUTE */
  12 #define AUDC_SET_INPUT        _IOW('m',17,int)
  13
  14 /* all the stuff below is obsolete and just here for reference.  I'll
  15  * remove it once the driver is tested and works fine.
  16  *
  17  * Instead creating alot of tiny API's for all kinds of different
  18  * chips, we'll just pass throuth the v4l ioctl structs (v4l2 not
  19  * yet...).  It is a bit less flexible, but most/all used i2c chips
  20  * make sense in v4l context only.  So I think that's acceptable...
  21  */
  22
  23 #if 0
  24
  25 /* TODO (if it is ever [to be] accessible in the V4L[2] spec):
  26  *   maybe fade? (back/front)
  27  * notes:
  28  * NEWCHANNEL and SWITCH_MUTE are here because the MSP3400 has a special
  29  * routine to go through when it tunes in to a new channel before turning
  30  * back on the sound.
  31  * Either SET_RADIO, NEWCHANNEL, and SWITCH_MUTE or SET_INPUT need to be
  32  * implemented (MSP3400 uses SET_RADIO to select inputs, and SWITCH_MUTE for
  33  * channel-change mute -- TEA6300 et al use SET_AUDIO to select input [TV,
  34  * radio, external, or MUTE]).  If both methods are implemented, you get a
  35  * cookie for doing such a good job! :)
  36  */
  37
  38 #define AUDC_SET_TVNORM       _IOW('m',1,int)  /* TV mode + PAL/SECAM/NTSC  */
  39 #define AUDC_NEWCHANNEL       _IO('m',3)       /* indicate new chan - off mute */
  40
  41 #define AUDC_GET_VOLUME_LEFT  _IOR('m',4,__u16)
  42 #define AUDC_GET_VOLUME_RIGHT _IOR('m',5,__u16)
  43 #define AUDC_SET_VOLUME_LEFT  _IOW('m',6,__u16)
  44 #define AUDC_SET_VOLUME_RIGHT _IOW('m',7,__u16)
  45
  46 #define AUDC_GET_STEREO       _IOR('m',8,__u16)
  47 #define AUDC_SET_STEREO       _IOW('m',9,__u16)
  48
  49 #define AUDC_GET_DC           _IOR('m',10,__u16)/* ??? */
  50
  51 #define AUDC_GET_BASS         _IOR('m',11,__u16)
  52 #define AUDC_SET_BASS         _IOW('m',12,__u16)
  53 #define AUDC_GET_TREBLE       _IOR('m',13,__u16)
  54 #define AUDC_SET_TREBLE       _IOW('m',14,__u16)
  55
  56 #define AUDC_GET_UNIT         _IOR('m',15,int) /* ??? - unimplemented in MSP3400 */
  57 #define AUDC_SWITCH_MUTE      _IO('m',16)      /* turn on mute */
  58 #endif
  59
  60 #endif /* AUDIOCHIP_H */