Improve g_tuner and add s_hw_freq_seek and enum_freq_bands support for cards
with TEA575x radio.
This allows signal/stereo detection and HW seek to work on these cards.
Signed-off-by: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx>
---
drivers/media/pci/bt8xx/bttv-driver.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index e7f8ade..5476a7d 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -2515,6 +2515,8 @@ static int bttv_querycap(struct file *file, void *priv,
if (btv->has_saa6588)
cap->device_caps |= V4L2_CAP_READWRITE |
V4L2_CAP_RDS_CAPTURE;
+ if (btv->has_tea575x)
+ cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
}
return 0;
}
@@ -3244,6 +3246,9 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
if (btv->audio_mode_gpio)
btv->audio_mode_gpio(btv, t, 0);
+ if (btv->has_tea575x)
+ return snd_tea575x_g_tuner(&btv->tea, t);
+
return 0;
}
@@ -3261,6 +3266,30 @@ static int radio_s_tuner(struct file *file, void *priv,
return 0;
}
+static int radio_s_hw_freq_seek(struct file *file, void *priv,
+ const struct v4l2_hw_freq_seek *a)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (btv->has_tea575x)
+ return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
+ else
+ return -ENOTTY;
+}
+
+static int radio_enum_freq_bands(struct file *file, void *priv,
+ struct v4l2_frequency_band *band)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (btv->has_tea575x)
+ return snd_tea575x_enum_freq_bands(&btv->tea, band);
+ else
+ return -ENOTTY;
+}
+
static ssize_t radio_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
@@ -3318,6 +3347,8 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
.vidioc_s_tuner = radio_s_tuner,
.vidioc_g_frequency = bttv_g_frequency,
.vidioc_s_frequency = bttv_s_frequency,
+ .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek,
+ .vidioc_enum_freq_bands = radio_enum_freq_bands,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
--
Ondrej Zary
--
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