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path: root/drivers/media/common/tuners/tda18271-fe.c
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Diffstat (limited to 'drivers/media/common/tuners/tda18271-fe.c')
-rw-r--r--drivers/media/common/tuners/tda18271-fe.c83
1 files changed, 57 insertions, 26 deletions
diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c
index bc4b004ba7d..64595112000 100644
--- a/drivers/media/common/tuners/tda18271-fe.c
+++ b/drivers/media/common/tuners/tda18271-fe.c
@@ -36,6 +36,27 @@ static LIST_HEAD(hybrid_tuner_instance_list);
/*---------------------------------------------------------------------*/
+static int tda18271_toggle_output(struct dvb_frontend *fe, int standby)
+{
+ struct tda18271_priv *priv = fe->tuner_priv;
+
+ int ret = tda18271_set_standby_mode(fe, standby ? 1 : 0,
+ priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0,
+ priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0);
+
+ if (tda_fail(ret))
+ goto fail;
+
+ tda_dbg("%s mode: xtal oscillator %s, slave tuner loop thru %s\n",
+ standby ? "standby" : "active",
+ priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on",
+ priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on");
+fail:
+ return ret;
+}
+
+/*---------------------------------------------------------------------*/
+
static inline int charge_pump_source(struct dvb_frontend *fe, int force)
{
struct tda18271_priv *priv = fe->tuner_priv;
@@ -271,7 +292,7 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,
tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt);
/* calculate temperature compensation */
- rfcal_comp = dc_over_dt * (tm_current - priv->tm_rfcal);
+ rfcal_comp = dc_over_dt * (tm_current - priv->tm_rfcal) / 1000;
regs[R_EB14] = approx + rfcal_comp;
ret = tda18271_write_regs(fe, R_EB14, 1);
@@ -800,7 +821,7 @@ static int tda18271_init(struct dvb_frontend *fe)
mutex_lock(&priv->lock);
- /* power up */
+ /* full power up */
ret = tda18271_set_standby_mode(fe, 0, 0, 0);
if (tda_fail(ret))
goto fail;
@@ -818,6 +839,21 @@ fail:
return ret;
}
+static int tda18271_sleep(struct dvb_frontend *fe)
+{
+ struct tda18271_priv *priv = fe->tuner_priv;
+ int ret;
+
+ mutex_lock(&priv->lock);
+
+ /* enter standby mode, with required output features enabled */
+ ret = tda18271_toggle_output(fe, 1);
+
+ mutex_unlock(&priv->lock);
+
+ return ret;
+}
+
/* ------------------------------------------------------------------ */
static int tda18271_agc(struct dvb_frontend *fe)
@@ -827,8 +863,9 @@ static int tda18271_agc(struct dvb_frontend *fe)
switch (priv->config) {
case 0:
- /* no LNA */
- tda_dbg("no agc configuration provided\n");
+ /* no external agc configuration required */
+ if (tda18271_debug & DBG_ADV)
+ tda_dbg("no agc configuration provided\n");
break;
case 3:
/* switch with GPIO of saa713x */
@@ -1010,22 +1047,6 @@ fail:
return ret;
}
-static int tda18271_sleep(struct dvb_frontend *fe)
-{
- struct tda18271_priv *priv = fe->tuner_priv;
- int ret;
-
- mutex_lock(&priv->lock);
-
- /* standby mode w/ slave tuner output
- * & loop thru & xtal oscillator on */
- ret = tda18271_set_standby_mode(fe, 1, 0, 0);
-
- mutex_unlock(&priv->lock);
-
- return ret;
-}
-
static int tda18271_release(struct dvb_frontend *fe)
{
struct tda18271_priv *priv = fe->tuner_priv;
@@ -1199,6 +1220,9 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;
priv->role = (cfg) ? cfg->role : TDA18271_MASTER;
priv->config = (cfg) ? cfg->config : 0;
+ priv->small_i2c = (cfg) ? cfg->small_i2c : 0;
+ priv->output_opt = (cfg) ?
+ cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON;
/* tda18271_cal_on_startup == -1 when cal
* module option is unset */
@@ -1216,9 +1240,6 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
fe->tuner_priv = priv;
- if (cfg)
- priv->small_i2c = cfg->small_i2c;
-
if (tda_fail(tda18271_get_id(fe)))
goto fail;
@@ -1238,9 +1259,19 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
/* existing tuner instance */
fe->tuner_priv = priv;
- /* allow dvb driver to override i2c gate setting */
- if ((cfg) && (cfg->gate != TDA18271_GATE_ANALOG))
- priv->gate = cfg->gate;
+ /* allow dvb driver to override configuration settings */
+ if (cfg) {
+ if (cfg->gate != TDA18271_GATE_ANALOG)
+ priv->gate = cfg->gate;
+ if (cfg->role)
+ priv->role = cfg->role;
+ if (cfg->config)
+ priv->config = cfg->config;
+ if (cfg->small_i2c)
+ priv->small_i2c = cfg->small_i2c;
+ if (cfg->output_opt)
+ priv->output_opt = cfg->output_opt;
+ }
break;
}