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Commit 2e687a6d authored by Matthias Schwarzott's avatar Matthias Schwarzott Committed by Mauro Carvalho Chehab
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media: si2165: add DVBv3 wrapper for C/N statistics 



Add read_snr function that reads from property cache to support DVBv3.

Signed-off-by: default avatarMatthias Schwarzott <zzam@gentoo.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 964b3727

drivers/media/dvb-frontends/si2165.c

+12 −0
Original line number Diff line number Diff line
@@ -794,6 +794,17 @@ static int si2165_read_status(struct dvb_frontend *fe, enum fe_status *status) 
	return 0;

}



static int si2165_read_snr(struct dvb_frontend *fe, u16 *snr)

{

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;



	if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)

		*snr = div_s64(c->cnr.stat[0].svalue, 100);

	else

		*snr = 0;

	return 0;

}



static int si2165_set_oversamp(struct si2165_state *state, u32 dvb_rate)

{

	u64 oversamp;
@@ -1111,6 +1122,7 @@ static const struct dvb_frontend_ops si2165_ops = { 


	.set_frontend      = si2165_set_frontend,

	.read_status       = si2165_read_status,

	.read_snr          = si2165_read_snr,

};



static int si2165_probe(struct i2c_client *client,