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path: root/drivers/media/radio/radio-miropcm20.c
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Diffstat (limited to 'drivers/media/radio/radio-miropcm20.c')
-rw-r--r--drivers/media/radio/radio-miropcm20.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/radio/radio-miropcm20.c b/drivers/media/radio/radio-miropcm20.c
index eb6cd86337a8..3d0ff4404d12 100644
--- a/drivers/media/radio/radio-miropcm20.c
+++ b/drivers/media/radio/radio-miropcm20.c
@@ -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;

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