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

drivers/staging/media/rtl2832u_sdr/rtl2832_sdr.c

+10 −2
Original line number Diff line number Diff line
@@ -1322,8 +1322,16 @@ static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl) 
	switch (ctrl->id) {

	case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:

	case V4L2_CID_RF_TUNER_BANDWIDTH:

		if (s->bandwidth_auto->val)

			s->bandwidth->val = s->f_adc;

		/* TODO: these controls should be moved to tuner drivers */

		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;