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authorMichael Krufky <mkrufky@linuxtv.org>2007-08-31 17:53:00 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-10-09 22:07:49 -0300
commit3782e050f8860fb701d4cb14df16cd4ed9cce2d2 (patch)
tree0125684b69c446d3d3a73a9dc39ee8f44bfcae3c
parent6b897f2c3982af51134ba83f4b6de71d28d35944 (diff)
V4L/DVB (6140): tda8290: add get_rf_strength and improve status reading efficiency
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/video/tda8290.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index ec731d6fbfb..0e5cf459d3e 100644
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -553,27 +553,35 @@ static int tda8290_set_params(struct dvb_frontend *fe,
static int tda8290_has_signal(struct dvb_frontend *fe)
{
struct tda8290_priv *priv = fe->tuner_priv;
+ int ret;
unsigned char i2c_get_afc[1] = { 0x1B };
unsigned char afc = 0;
+ /* for now, report based on afc status */
tuner_i2c_xfer_send(&priv->i2c_props, i2c_get_afc, ARRAY_SIZE(i2c_get_afc));
tuner_i2c_xfer_recv(&priv->i2c_props, &afc, 1);
- return (afc & 0x80)? 65535:0;
+
+ ret = (afc & 0x80) ? 65535 : 0;
+
+ tuner_dbg("AFC status: %d\n", ret);
+
+ return ret;
}
static int tda8290_get_status(struct dvb_frontend *fe, u32 *status)
{
- struct tda8290_priv *priv = fe->tuner_priv;
-
- int signal = tda8290_has_signal(fe);
*status = 0;
- /* for now, report based on afc status */
- if (signal)
+ if (tda8290_has_signal(fe))
*status = TUNER_STATUS_LOCKED;
- tuner_dbg("tda8290: AFC status: %d\n", signal);
+ return 0;
+}
+
+static int tda8290_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ *strength = tda8290_has_signal(fe);
return 0;
}
@@ -656,6 +664,7 @@ static struct dvb_tuner_ops tda8290_tuner_ops = {
.release = tda8290_release,
.get_frequency = tda8290_get_frequency,
.get_status = tda8290_get_status,
+ .get_rf_strength = tda8290_get_rf_strength,
};
struct dvb_frontend *tda8290_attach(struct dvb_frontend *fe,