V4L/DVB (3577): Cleanup audio input handling

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>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 5 insertions, 99 deletions

diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
index 11ea9765769c..bd0b036c5cab 100644
--- a/drivers/media/video/msp3400-driver.c
+++ b/drivers/media/video/msp3400-driver.c
@@ -53,7 +53,7 @@
 #include <linux/videodev.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
-#include <media/audiochip.h>
+#include <media/tvaudio.h>
 #include <linux/kthread.h>
 #include <linux/suspend.h>
 #include "msp3400.h"
@@ -585,51 +585,12 @@ static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 {
 	struct msp_state *state = i2c_get_clientdata(client);
-	u16 *sarg = arg;
 	int scart = 0;
 
 	if (msp_debug >= 2)
 		v4l_i2c_print_ioctl(client, cmd);
 
 	switch (cmd) {
-	case AUDC_SET_INPUT:
-		if (*sarg == state->input)
-			break;
-		state->input = *sarg;
-		switch (*sarg) {
-		case AUDIO_RADIO:
-			/* Hauppauge uses IN2 for the radio */
-			state->mode = MSP_MODE_FM_RADIO;
-			scart       = SCART_IN2;
-			break;
-		case AUDIO_EXTERN_1:
-			/* IN1 is often used for external input ... */
-			state->mode = MSP_MODE_EXTERN;
-			scart       = SCART_IN1;
-			break;
-		case AUDIO_EXTERN_2:
-			/* ... sometimes it is IN2 through ;) */
-			state->mode = MSP_MODE_EXTERN;
-			scart       = SCART_IN2;
-			break;
-		case AUDIO_TUNER:
-			state->mode = -1;
-			break;
-		default:
-			if (*sarg & AUDIO_MUTE)
-				msp_set_scart(client, SCART_MUTE, 0);
-			break;
-		}
-		if (scart) {
-			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
-			msp_set_scart(client, scart, 0);
-			msp_write_dsp(client, 0x000d, 0x1900);
-			if (state->opmode != OPMODE_AUTOSELECT)
-				msp_set_audmode(client);
-		}
-		msp_wake_thread(client);
-		break;
-
 	case AUDC_SET_RADIO:
 		if (state->radio)
 			return 0;
@@ -750,82 +711,27 @@ static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		return 0;
 	}
 
-	case VIDIOC_ENUMINPUT:
-	{
-		struct v4l2_input *i = arg;
-
-		if (i->index != 0)
-			return -EINVAL;
-
-		i->type = V4L2_INPUT_TYPE_TUNER;
-		switch (i->index) {
-		case AUDIO_RADIO:
-			strcpy(i->name, "Radio");
-			break;
-		case AUDIO_EXTERN_1:
-			strcpy(i->name, "Extern 1");
-			break;
-		case AUDIO_EXTERN_2:
-			strcpy(i->name, "Extern 2");
-			break;
-		case AUDIO_TUNER:
-			strcpy(i->name, "Television");
-			break;
-		default:
-			return -EINVAL;
-		}
-		return 0;
-	}
-
-	case VIDIOC_G_AUDIO:
-	{
-		struct v4l2_audio *a = arg;
-
-		memset(a, 0, sizeof(*a));
-
-		switch (a->index) {
-		case AUDIO_RADIO:
-			strcpy(a->name, "Radio");
-			break;
-		case AUDIO_EXTERN_1:
-			strcpy(a->name, "Extern 1");
-			break;
-		case AUDIO_EXTERN_2:
-			strcpy(a->name, "Extern 2");
-			break;
-		case AUDIO_TUNER:
-			strcpy(a->name, "Television");
-			break;
-		default:
-			return -EINVAL;
-		}
-
-		a->capability = V4L2_AUDCAP_STEREO;
-		a->mode = 0;  /* TODO: add support for AVL */
-		break;
-	}
-
 	case VIDIOC_S_AUDIO:
 	{
 		struct v4l2_audio *sarg = arg;
 
 		switch (sarg->index) {
-		case AUDIO_RADIO:
+		case TVAUDIO_INPUT_RADIO:
 			/* Hauppauge uses IN2 for the radio */
 			state->mode = MSP_MODE_FM_RADIO;
 			scart       = SCART_IN2;
 			break;
-		case AUDIO_EXTERN_1:
+		case TVAUDIO_INPUT_EXTERN:
 			/* IN1 is often used for external input ... */
 			state->mode = MSP_MODE_EXTERN;
 			scart       = SCART_IN1;
 			break;
-		case AUDIO_EXTERN_2:
+		case TVAUDIO_INPUT_INTERN:
 			/* ... sometimes it is IN2 through ;) */
 			state->mode = MSP_MODE_EXTERN;
 			scart       = SCART_IN2;
 			break;
-		case AUDIO_TUNER:
+		case TVAUDIO_INPUT_TUNER:
 			state->mode = -1;
 			break;
 		}