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[media] radio-miropcm20: fix signal and stereo indication

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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-05-28 11:10:01 -03:00 committed by Mauro Carvalho Chehab
parent f5e7cc4af3
commit 9bbc5820ff
1 changed files with 8 additions and 2 deletions
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10
drivers/media/radio/radio-miropcm20.c
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@ -82,6 +82,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
struct pcm20 *dev = video_drvdata(file);
int res;
if (v->index)
return -EINVAL;
@ -89,8 +90,13 @@ static int vidioc_g_tuner(struct file *file, void *priv,
v->type = V4L2_TUNER_RADIO;
v->rangelow = 87*16000;
v->rangehigh = 108*16000;
v->signal = 0xffff;
v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
res = snd_aci_cmd(dev->aci, ACI_READ_TUNERSTATION, -1, -1);
v->signal = (res & 0x80) ? 0 : 0xffff;
/* Note: stereo detection does not work if the audio is muted,
it will default to mono in that case. */
res = snd_aci_cmd(dev->aci, ACI_READ_TUNERSTEREO, -1, -1);
v->rxsubchans = (res & 0x40) ? V4L2_TUNER_SUB_MONO :
V4L2_TUNER_SUB_STEREO;
v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
v->audmode = dev->audmode;
return 0;