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V4L/DVB (3246): Use VIDIOC_S_AUDIO instead of AUDC_SET_INPUT in cs53l32a

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- Replace AUDC_SET_INPUT with VIDIOC_S_AUDIO.
- Added V4L2_CID_AUDIO_MUTE.
- Minimum volume is -96 dB, not -90.
- Show volume in VIDIOC_LOG_STATUS.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
This commit is contained in:
Hans Verkuil 2006-01-09 15:25:39 -02:00 committed by Mauro Carvalho Chehab
parent a544521ef0
commit 936053516a
1 changed files with 37 additions and 28 deletions
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65
drivers/media/video/cs53l32a.c
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@ -74,50 +74,59 @@ static int cs53l32a_read(struct i2c_client *client, u8 reg)
static int cs53l32a_command(struct i2c_client *client, unsigned int cmd,
void *arg)
{
int *input = arg;
struct v4l2_audio *input = arg;
struct v4l2_control *ctrl = arg;
switch (cmd) {
case AUDC_SET_INPUT:
switch (*input) {
case AUDIO_TUNER:
cs53l32a_write(client, 0x01, 0x01);
break;
case AUDIO_EXTERN:
cs53l32a_write(client, 0x01, 0x21);
break;
case AUDIO_MUTE:
cs53l32a_write(client, 0x03, 0xF0);
break;
case AUDIO_UNMUTE:
cs53l32a_write(client, 0x03, 0x30);
break;
default:
cs53l32a_err("Invalid input %d.\n", *input);
case VIDIOC_S_AUDIO:
/* There are 2 physical inputs, but the second input can be
placed in two modes, the first mode bypasses the PGA (gain),
the second goes through the PGA. Hence there are three
possible inputs to choose from. */
if (input->index > 2) {
cs53l32a_err("Invalid input %d.\n", input->index);
return -EINVAL;
}
cs53l32a_write(client, 0x01, 0x01 + (input->index << 4));
break;
case VIDIOC_G_AUDIO:
memset(input, 0, sizeof(*input));
input->index = (cs53l32a_read(client, 0x01) >> 4) & 3;
break;
case VIDIOC_G_CTRL:
if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
ctrl->value = (cs53l32a_read(client, 0x03) & 0xc0) != 0;
break;
}
if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
return -EINVAL;
ctrl->value = (s8)cs53l32a_read(client, 0x04);
break;
case VIDIOC_S_CTRL:
{
struct v4l2_control *ctrl = arg;
if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
return -EINVAL;
if (ctrl->value > 12 || ctrl->value < -90)
return -EINVAL;
cs53l32a_write(client, 0x04, (u8) ctrl->value);
cs53l32a_write(client, 0x05, (u8) ctrl->value);
if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
cs53l32a_write(client, 0x03, ctrl->value ? 0xf0 : 0x30);
break;
}
if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
return -EINVAL;
if (ctrl->value > 12 || ctrl->value < -96)
return -EINVAL;
cs53l32a_write(client, 0x04, (u8) ctrl->value);
cs53l32a_write(client, 0x05, (u8) ctrl->value);
break;
case VIDIOC_LOG_STATUS:
{
u8 v = cs53l32a_read(client, 0x01);
u8 m = cs53l32a_read(client, 0x03);
s8 vol = cs53l32a_read(client, 0x04);
cs53l32a_info("Input: %s%s\n",
v == 0x21 ? "external line in" : "tuner",
cs53l32a_info("Input: %d%s\n", (v >> 4) & 3,
(m & 0xC0) ? " (muted)" : "");
cs53l32a_info("Volume: %d dB\n", vol);
break;
}