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[media] bttv: Improve TEA575x support

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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@rainbow-software.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Ondrej Zary 2015-01-16 06:58:32 -03:00 committed by Mauro Carvalho Chehab
parent 6994ca3df1
commit 35655bf854
1 changed files with 31 additions and 0 deletions
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31
drivers/media/pci/bt8xx/bttv-driver.c
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@ -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);
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);
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,
};