Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 35655bf8 authored by Ondrej Zary's avatar Ondrej Zary Committed by Mauro Carvalho Chehab
Browse files

[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: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 6994ca3d

drivers/media/pci/bt8xx/bttv-driver.c

+31 −0
Original line number Diff line number Diff line
@@ -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,

};