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| author | David Wong <davidtlwong@gmail.com> | 2009-11-28 08:36:31 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-02-26 15:10:25 -0300 |
| commit | c245c75c41b9693bcbd6c95e25af324188b4dce1 (patch) | |
| tree | 4bd070c650c0b87e3ed90ee23ee7befe625635eb /drivers/media/dvb/frontends/atbm8830.c | |
| parent | 8719cfdb4aa5bc7402bef873f607ed406960019f (diff) | |
| download | blackbird-op-linux-c245c75c41b9693bcbd6c95e25af324188b4dce1.tar.gz blackbird-op-linux-c245c75c41b9693bcbd6c95e25af324188b4dce1.zip | |
V4L/DVB (13838): atbm8830: use AGC setting from config
Improves ATBM8830 reception by using per card AGC configuration rather
than register default.
Signed-off-by: David T. L. Wong <davidtlwong@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/atbm8830.c')
| -rw-r--r-- | drivers/media/dvb/frontends/atbm8830.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/atbm8830.c b/drivers/media/dvb/frontends/atbm8830.c index 59881a5944eb..43aac2f85c2e 100644 --- a/drivers/media/dvb/frontends/atbm8830.c +++ b/drivers/media/dvb/frontends/atbm8830.c @@ -170,6 +170,19 @@ static int is_locked(struct atbm_state *priv, u8 *locked) return 0; } +static int set_agc_config(struct atbm_state *priv, + u8 min, u8 max, u8 hold_loop) +{ + /* no effect if both min and max are zero */ + if (!min && !max) + return 0; + + atbm8830_write_reg(priv, REG_AGC_MIN, min); + atbm8830_write_reg(priv, REG_AGC_MAX, max); + atbm8830_write_reg(priv, REG_AGC_HOLD_LOOP, hold_loop); + + return 0; +} static int set_static_channel_mode(struct atbm_state *priv) { @@ -227,6 +240,9 @@ static int atbm8830_init(struct dvb_frontend *fe) /*Set IF frequency*/ set_if_freq(priv, cfg->if_freq); + /*Set AGC Config*/ + set_agc_config(priv, cfg->agc_min, cfg->agc_max, + cfg->agc_hold_loop); /*Set static channel mode*/ set_static_channel_mode(priv); |
