diff options
| author | Olivier Grenie <olivier.grenie@dibcom.fr> | 2009-09-18 04:08:43 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:40:03 -0200 |
| commit | f8731f4ddedb78693ae05e40aac5c4817f740518 (patch) | |
| tree | 56100674dd3a1c2935ca234fd8086f24322ab163 /drivers/media/dvb/frontends/dib8000.c | |
| parent | 8171c2059cc4b0507faf3a0e0fdf28cc83d8ac62 (diff) | |
V4L/DVB (13049): dib8000: SNR in 10th of dB
dib7000p/dib8000: added pid filtering
dib8000: the SNR is in 10th of dB (not in dB)
dib7000p and dib8000: added the pid filtering. This feature is enabled by module option (dvb-usb module).
Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/dib8000.c')
| -rw-r--r-- | drivers/media/dvb/frontends/dib8000.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/media/dvb/frontends/dib8000.c b/drivers/media/dvb/frontends/dib8000.c index 852c790d09d..44c2dc9b4f1 100644 --- a/drivers/media/dvb/frontends/dib8000.c +++ b/drivers/media/dvb/frontends/dib8000.c @@ -2121,7 +2121,7 @@ static int dib8000_read_snr(struct dvb_frontend *fe, u16 * snr) else result -= intlog10(2) * 10 * noise_exp - 100; - *snr = result / (1 << 24); + *snr = result / ((1 << 24) / 10); return 0; } @@ -2195,6 +2195,25 @@ struct i2c_adapter *dib8000_get_i2c_master(struct dvb_frontend *fe, enum dibx000 EXPORT_SYMBOL(dib8000_get_i2c_master); +int dib8000_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff) +{ + struct dib8000_state *st = fe->demodulator_priv; + u16 val = dib8000_read_word(st, 299) & 0xffef; + val |= (onoff & 0x1) << 4; + + dprintk("pid filter enabled %d", onoff); + return dib8000_write_word(st, 299, val); +} +EXPORT_SYMBOL(dib8000_pid_filter_ctrl); + +int dib8000_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff) +{ + struct dib8000_state *st = fe->demodulator_priv; + dprintk("Index %x, PID %d, OnOff %d", id, pid, onoff); + return dib8000_write_word(st, 305 + id, onoff ? (1 << 13) | pid : 0); +} +EXPORT_SYMBOL(dib8000_pid_filter); + static const struct dvb_frontend_ops dib8000_ops = { .info = { .name = "DiBcom 8000 ISDB-T", |