diff options
Diffstat (limited to 'drivers/media/common/tuners/tda18218.c')
| -rw-r--r-- | drivers/media/common/tuners/tda18218.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/drivers/media/common/tuners/tda18218.c b/drivers/media/common/tuners/tda18218.c index 4fc29730a12c..dfb3a831df45 100644 --- a/drivers/media/common/tuners/tda18218.c +++ b/drivers/media/common/tuners/tda18218.c @@ -109,10 +109,11 @@ static int tda18218_rd_reg(struct tda18218_priv *priv, u8 reg, u8 *val) return tda18218_rd_regs(priv, reg, val, 1); } -static int tda18218_set_params(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) +static int tda18218_set_params(struct dvb_frontend *fe) { struct tda18218_priv *priv = fe->tuner_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + u32 bw = c->bandwidth_hz; int ret; u8 buf[3], i, BP_Filter, LP_Fc; u32 LO_Frac; @@ -138,22 +139,19 @@ static int tda18218_set_params(struct dvb_frontend *fe, fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */ /* low-pass filter cut-off frequency */ - switch (params->u.ofdm.bandwidth) { - case BANDWIDTH_6_MHZ: + if (bw <= 6000000) { LP_Fc = 0; - LO_Frac = params->frequency + 3000000; - break; - case BANDWIDTH_7_MHZ: + priv->if_frequency = 3000000; + } else if (bw <= 7000000) { LP_Fc = 1; - LO_Frac = params->frequency + 3500000; - break; - case BANDWIDTH_8_MHZ: - default: + priv->if_frequency = 3500000; + } else { LP_Fc = 2; - LO_Frac = params->frequency + 4000000; - break; + priv->if_frequency = 4000000; } + LO_Frac = c->frequency + priv->if_frequency; + /* band-pass filter */ if (LO_Frac < 188000000) BP_Filter = 3; @@ -206,6 +204,14 @@ error: return ret; } +static int tda18218_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct tda18218_priv *priv = fe->tuner_priv; + *frequency = priv->if_frequency; + dbg("%s: if=%d", __func__, *frequency); + return 0; +} + static int tda18218_sleep(struct dvb_frontend *fe) { struct tda18218_priv *priv = fe->tuner_priv; @@ -268,6 +274,8 @@ static const struct dvb_tuner_ops tda18218_tuner_ops = { .sleep = tda18218_sleep, .set_params = tda18218_set_params, + + .get_if_frequency = tda18218_get_if_frequency, }; struct dvb_frontend *tda18218_attach(struct dvb_frontend *fe, |