diff options
| author | Michael Krufky <mkrufky@linuxtv.org> | 2007-08-31 17:53:00 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-10-09 22:07:49 -0300 |
| commit | 3782e050f8860fb701d4cb14df16cd4ed9cce2d2 (patch) | |
| tree | 0125684b69c446d3d3a73a9dc39ee8f44bfcae3c /drivers | |
| parent | 6b897f2c3982af51134ba83f4b6de71d28d35944 (diff) | |
| download | blackbird-op-linux-3782e050f8860fb701d4cb14df16cd4ed9cce2d2.tar.gz blackbird-op-linux-3782e050f8860fb701d4cb14df16cd4ed9cce2d2.zip | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/tda8290.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c index ec731d6fbfb8..0e5cf459d3ed 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, |
