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path: root/drivers/media/common/tuners/tda18218.c
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Diffstat (limited to 'drivers/media/common/tuners/tda18218.c')
-rw-r--r--drivers/media/common/tuners/tda18218.c34
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,