Cleanup audio input handling

From: Hans Verkuil <hverkuil@xs4all.nl>

Cleanup audio input handling in bttv and tvaudio:

- inputs were specified that were never used
- mute was handled as a special input which led to confusing code
- confusing naming made it difficult to see if the setting was for
  i2c or gpio.

The old audiochip.h input names moved to tvaudio.h. Currently this
is used both by tvaudio and msp3400 until the msp3400 implements the
new msp3400-specific inputs.

Detect in bttv the tvaudio and msp3400 i2c clients and use these
client pointers to set the inputs directly instead of broadcasting the
command.

Removed AUDC_SET_INPUT. Now replaced by VIDIOC_S_AUDIO. This will be
replaced again later by the new ROUTING commands.

Removed VIDIOC_G_AUDIO implementations in i2c drivers: this command is
a user level command and not to be used internally. It wasn't called at
all anyway.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

1 files changed, 0 insertions, 14 deletions

diff --git a/linux/include/media/audiochip.h b/linux/include/media/audiochip.h
index 4589fd95f..41db54b17 100644
--- a/linux/include/media/audiochip.h
+++ b/linux/include/media/audiochip.h
@@ -22,18 +22,4 @@ enum audiochip {
 	AUDIO_CHIP_MSP34XX
 };
 
-/* ---------------------------------------------------------------------- */
-
-/* audio inputs */
-#define AUDIO_TUNER        0x00
-#define AUDIO_RADIO        0x01
-#define AUDIO_EXTERN       0x02
-#define AUDIO_INTERN       0x03
-#define AUDIO_OFF          0x04
-#define AUDIO_ON           0x05
-#define AUDIO_EXTERN_1     AUDIO_EXTERN
-#define AUDIO_EXTERN_2     0x06
-#define AUDIO_MUTE         0x80
-#define AUDIO_UNMUTE       0x81
-
 #endif /* AUDIOCHIP_H */