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[media] tda18218: use DVBv5 parameters on set_params()

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Instead of using DVBv3 parameters, rely on DVBv5 parameters to
set the tuner.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-12-21 07:47:27 -03:00
parent e12617e6f0
commit 67ccfe3b9e
1 changed files with 6 additions and 9 deletions
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15
drivers/media/common/tuners/tda18218.c
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@ -113,6 +113,8 @@ static int tda18218_set_params(struct dvb_frontend *fe,
struct dvb_frontend_parameters *params) struct dvb_frontend_parameters *params)
{ {
struct tda18218_priv *priv = fe->tuner_priv; struct tda18218_priv *priv = fe->tuner_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u32 bw = c->bandwidth_hz;
int ret; int ret;
u8 buf[3], i, BP_Filter, LP_Fc; u8 buf[3], i, BP_Filter, LP_Fc;
u32 LO_Frac; u32 LO_Frac;
@ -138,23 +140,18 @@ static int tda18218_set_params(struct dvb_frontend *fe,
fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */ fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
/* low-pass filter cut-off frequency */ /* low-pass filter cut-off frequency */
switch (params->u.ofdm.bandwidth) { if (bw <= 6000000) {
case BANDWIDTH_6_MHZ:
LP_Fc = 0; LP_Fc = 0;
priv->if_frequency = 3000000; priv->if_frequency = 3000000;
break; } else if (bw <= 7000000) {
case BANDWIDTH_7_MHZ:
LP_Fc = 1; LP_Fc = 1;
priv->if_frequency = 3500000; priv->if_frequency = 3500000;
break; } else {
case BANDWIDTH_8_MHZ:
default:
LP_Fc = 2; LP_Fc = 2;
priv->if_frequency = 4000000; priv->if_frequency = 4000000;
break;
} }
LO_Frac = params->frequency + priv->if_frequency; LO_Frac = c->frequency + priv->if_frequency;
/* band-pass filter */ /* band-pass filter */
if (LO_Frac < 188000000) if (LO_Frac < 188000000)