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| author | Antti Palosaari <crope@iki.fi> | 2013-12-11 20:24:02 -0300 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 11:56:08 +0900 |
| commit | ba4c627482e9b03b8f718acf137fbb082cf262eb (patch) | |
| tree | 445667cc9e0b8d5cd894a3640b68a0bc3a1eb45c /include/uapi | |
| parent | 6872807617c9e27f9dc8d8b4ddc3f4246fa5f76b (diff) | |
| download | linux-3.10-ba4c627482e9b03b8f718acf137fbb082cf262eb.tar.gz linux-3.10-ba4c627482e9b03b8f718acf137fbb082cf262eb.tar.bz2 linux-3.10-ba4c627482e9b03b8f718acf137fbb082cf262eb.zip | |
upstream: [media] v4l: add new tuner types for SDR
Define tuner types V4L2_TUNER_ADC and V4L2_TUNER_RF for SDR usage.
ADC is used for setting sampling rate (sampling frequency) to SDR
device.
Another tuner type, named as V4L2_TUNER_RF, is possible RF tuner.
Is is used to down-convert RF frequency to range ADC could sample.
Having RF tuner is optional, whilst in practice it is almost always
there.
Also add checks to VIDIOC_G_FREQUENCY, VIDIOC_S_FREQUENCY and
VIDIOC_ENUM_FREQ_BANDS only allow these two tuner types when device
type is SDR (VFL_TYPE_SDR). For VIDIOC_G_FREQUENCY we do not check
tuner type, instead override type with V4L2_TUNER_ADC in every
case (requested by Hans in order to keep functionality in line with
existing tuners and existing API does not specify it).
Prohibit VIDIOC_S_HW_FREQ_SEEK explicitly when device type is SDR,
as device cannot do hardware seek without a hardware demodulator.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/videodev2.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 3c79a88b651..70c806602c1 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -160,6 +160,8 @@ enum v4l2_tuner_type { V4L2_TUNER_RADIO = 1, V4L2_TUNER_ANALOG_TV = 2, V4L2_TUNER_DIGITAL_TV = 3, + V4L2_TUNER_ADC = 4, + V4L2_TUNER_RF = 5, }; enum v4l2_memory { |