Commit ea4d04f9 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab

[media] rtl2832_sdr: clamp bandwidth to nearest legal value in automode

Clamp bandwidth to nearest legal value in automode in order to pass
v4l2-compliance test.
Reported-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent bc908754
...@@ -1322,8 +1322,16 @@ static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl) ...@@ -1322,8 +1322,16 @@ static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl)
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
case V4L2_CID_RF_TUNER_BANDWIDTH: case V4L2_CID_RF_TUNER_BANDWIDTH:
if (s->bandwidth_auto->val) /* TODO: these controls should be moved to tuner drivers */
s->bandwidth->val = s->f_adc; if (s->bandwidth_auto->val) {
/* Round towards the closest legal value */
s32 val = s->f_adc + s->bandwidth->step / 2;
u32 offset;
val = clamp(val, s->bandwidth->minimum, s->bandwidth->maximum);
offset = val - s->bandwidth->minimum;
offset = s->bandwidth->step * (offset / s->bandwidth->step);
s->bandwidth->val = s->bandwidth->minimum + offset;
}
c->bandwidth_hz = s->bandwidth->val; c->bandwidth_hz = s->bandwidth->val;
......
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