On 06/06/2015 02:03 PM, Antti Palosaari wrote:
> Add new RF tuner gain control named RF gain. That is aimed for
> external LNA (amplifier) chip just right after antenna connector.
I don't follow. Do you mean:
This feeds into the external LNA...
But if that's the case, then the LNA chip isn't right after the antenna connector,
since there is a RF amplified in between.
Remember, this is not my area of expertise, so if I don't understand it, then that's
probably true for other non-experts as well :-)
Regards,
Hans
>
> Cc: Hans Verkuil <hverkuil@xxxxxxxxx>
> Signed-off-by: Antti Palosaari <crope@xxxxxx>
> ---
> drivers/media/v4l2-core/v4l2-ctrls.c | 4 ++++
> include/uapi/linux/v4l2-controls.h | 2 ++
> 2 files changed, 6 insertions(+)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
> index e3a3468..0fc34b8 100644
> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
> @@ -888,6 +888,8 @@ const char *v4l2_ctrl_get_name(u32 id)
> case V4L2_CID_TUNE_DEEMPHASIS: return "De-Emphasis";
> case V4L2_CID_RDS_RECEPTION: return "RDS Reception";
> case V4L2_CID_RF_TUNER_CLASS: return "RF Tuner Controls";
> + case V4L2_CID_RF_TUNER_RF_GAIN_AUTO: return "RF Gain, Auto";
> + case V4L2_CID_RF_TUNER_RF_GAIN: return "RF Gain";
> case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO: return "LNA Gain, Auto";
> case V4L2_CID_RF_TUNER_LNA_GAIN: return "LNA Gain";
> case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO: return "Mixer Gain, Auto";
> @@ -960,6 +962,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
> case V4L2_CID_WIDE_DYNAMIC_RANGE:
> case V4L2_CID_IMAGE_STABILIZATION:
> case V4L2_CID_RDS_RECEPTION:
> + case V4L2_CID_RF_TUNER_RF_GAIN_AUTO:
> case V4L2_CID_RF_TUNER_LNA_GAIN_AUTO:
> case V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO:
> case V4L2_CID_RF_TUNER_IF_GAIN_AUTO:
> @@ -1161,6 +1164,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
> case V4L2_CID_PILOT_TONE_FREQUENCY:
> case V4L2_CID_TUNE_POWER_LEVEL:
> case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
> + case V4L2_CID_RF_TUNER_RF_GAIN:
> case V4L2_CID_RF_TUNER_LNA_GAIN:
> case V4L2_CID_RF_TUNER_MIXER_GAIN:
> case V4L2_CID_RF_TUNER_IF_GAIN:
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index 9f6e108..87539be 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -932,6 +932,8 @@ enum v4l2_deemphasis {
>
> #define V4L2_CID_RF_TUNER_BANDWIDTH_AUTO (V4L2_CID_RF_TUNER_CLASS_BASE + 11)
> #define V4L2_CID_RF_TUNER_BANDWIDTH (V4L2_CID_RF_TUNER_CLASS_BASE + 12)
> +#define V4L2_CID_RF_TUNER_RF_GAIN_AUTO (V4L2_CID_RF_TUNER_CLASS_BASE + 31)
> +#define V4L2_CID_RF_TUNER_RF_GAIN (V4L2_CID_RF_TUNER_CLASS_BASE + 32)
> #define V4L2_CID_RF_TUNER_LNA_GAIN_AUTO (V4L2_CID_RF_TUNER_CLASS_BASE + 41)
> #define V4L2_CID_RF_TUNER_LNA_GAIN (V4L2_CID_RF_TUNER_CLASS_BASE + 42)
> #define V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO (V4L2_CID_RF_TUNER_CLASS_BASE + 51)
>
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