[media] bttv: Improve TEA575x support

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>

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index e7f8aded35f8..4ec2a3c3f23c 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);
+
+        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,
 };