From 988bd281d33b2249bf5d67dba0936795f2f9a2f2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 1 Jul 2016 11:03:14 -0300 Subject: [PATCH] [media] cxd2841er: provide signal strength for DVB-C Currently, there's no stats for DVB-C. Let's at least return signal strength. The scale is different than on DVB-T, so let's use a relative scale, for now. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/cxd2841er.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/media/dvb-frontends/cxd2841er.c b/drivers/media/dvb-frontends/cxd2841er.c index 94de6ba3d0e2..2a698711d25b 100644 --- a/drivers/media/dvb-frontends/cxd2841er.c +++ b/drivers/media/dvb-frontends/cxd2841er.c @@ -1750,7 +1750,6 @@ static void cxd2841er_read_signal_strength(struct dvb_frontend *fe) dev_dbg(&priv->i2c->dev, "%s()\n", __func__); switch (p->delivery_system) { - case SYS_DVBC_ANNEX_A: case SYS_DVBC_ANNEX_B: case SYS_DVBC_ANNEX_C: strength = 65535 - cxd2841er_read_agc_gain_c( @@ -1766,6 +1765,12 @@ static void cxd2841er_read_signal_strength(struct dvb_frontend *fe) /* Formula was empirically determinated @ 410 MHz */ p->strength.stat[0].uvalue = ((s32)strength) * 366 / 100 - 89520; break; /* Code moved out of the function */ + case SYS_DVBC_ANNEX_A: + strength = cxd2841er_read_agc_gain_t_t2(priv, + p->delivery_system); + p->strength.stat[0].scale = FE_SCALE_RELATIVE; + p->strength.stat[0].uvalue = strength; + break; case SYS_ISDBT: strength = 65535 - cxd2841er_read_agc_gain_i( priv, p->delivery_system); -- 2.20.1