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V4L/DVB (6978): tda18271: store frequency and bandwidth after successful tune

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Store last tuned frequency & bandwidth after successful tune.

Clean up tune functions -- remove pointer to tune function in
state structure, instead call tune function based on priv->id.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2008-01-06 00:55:21 -03:00 committed by Mauro Carvalho Chehab
parent 09f83c4fc0
commit ccbac9bb17
2 changed files with 38 additions and 11 deletions
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46
drivers/media/dvb/frontends/tda18271-fe.c
View file

@ -770,6 +770,23 @@ static int tda18271c1_tune(struct dvb_frontend *fe,
return 0;
}
static inline int tda18271_tune(struct dvb_frontend *fe,
u32 ifc, u32 freq, u32 bw, u8 std)
{
struct tda18271_priv *priv = fe->tuner_priv;
int ret = -EINVAL;
switch (priv->id) {
case TDA18271HDC1:
ret = tda18271c1_tune(fe, ifc, freq, bw, std);
break;
case TDA18271HDC2:
ret = tda18271c2_tune(fe, ifc, freq, bw, std);
break;
}
return ret;
}
/* ------------------------------------------------------------------ */
static int tda18271_set_params(struct dvb_frontend *fe,
@ -777,12 +794,11 @@ static int tda18271_set_params(struct dvb_frontend *fe,
{
struct tda18271_priv *priv = fe->tuner_priv;
struct tda18271_std_map *std_map = &priv->std;
int ret;
u8 std;
u16 sgIF;
u32 bw, freq = params->frequency;
BUG_ON(!priv->tune);
priv->mode = TDA18271_DIGITAL;
/* see table 22 */
@ -833,7 +849,16 @@ static int tda18271_set_params(struct dvb_frontend *fe,
return -EINVAL;
}
return priv->tune(fe, sgIF * 1000, freq, bw, std);
ret = tda18271_tune(fe, sgIF * 1000, freq, bw, std);
if (ret < 0)
goto fail;
priv->frequency = freq;
priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
params->u.ofdm.bandwidth : 0;
fail:
return ret;
}
static int tda18271_set_analog_params(struct dvb_frontend *fe,
@ -842,12 +867,11 @@ static int tda18271_set_analog_params(struct dvb_frontend *fe,
struct tda18271_priv *priv = fe->tuner_priv;
struct tda18271_std_map *std_map = &priv->std;
char *mode;
int ret;
u8 std;
u16 sgIF;
u32 freq = params->frequency * 62500;
BUG_ON(!priv->tune);
priv->mode = TDA18271_ANALOG;
if (params->std & V4L2_STD_MN) {
@ -886,7 +910,15 @@ static int tda18271_set_analog_params(struct dvb_frontend *fe,
tda_dbg("setting tda18271 to system %s\n", mode);
return priv->tune(fe, sgIF * 1000, freq, 0, std);
ret = tda18271_tune(fe, sgIF * 1000, freq, 0, std);
if (ret < 0)
goto fail;
priv->frequency = freq;
priv->bandwidth = 0;
fail:
return ret;
}
static int tda18271_release(struct dvb_frontend *fe)
@ -986,12 +1018,10 @@ static int tda18271_get_id(struct dvb_frontend *fe)
case 3:
name = "TDA18271HD/C1";
priv->id = TDA18271HDC1;
priv->tune = tda18271c1_tune;
break;
case 4:
name = "TDA18271HD/C2";
priv->id = TDA18271HDC2;
priv->tune = tda18271c2_tune;
break;
default:
name = "Unknown device";

3
drivers/media/dvb/frontends/tda18271-priv.h
View file

@ -112,9 +112,6 @@ struct tda18271_priv {
struct tda18271_std_map std;
struct tda18271_rf_tracking_filter_cal rf_cal_state[8];
int (*tune) (struct dvb_frontend *fe,
u32 ifc, u32 freq, u32 bw, u8 std);
u32 frequency;
u32 bandwidth;
};