diff options
| author | Abylay Ospan <aospan@netup.ru> | 2009-10-17 08:23:00 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:41:23 -0200 |
| commit | 873688cd30294412e185ba39f8487e3eed0f692d (patch) | |
| tree | 118cfaef5829cb8ace6de57d2d51f0f87243afca /drivers/media/dvb | |
| parent | adcd8de6de36f67241a5c3562f2ef1d5998b30a9 (diff) | |
V4L/DVB (13334): stv6110: add configurable gain
It has positive effect for NetUP Dual DVB-S2 CI card.
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/frontends/stv6110.c | 13 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/stv6110.h | 1 |
2 files changed, 5 insertions, 9 deletions
diff --git a/drivers/media/dvb/frontends/stv6110.c b/drivers/media/dvb/frontends/stv6110.c index dcf1b21ea974..bef0cc838471 100644 --- a/drivers/media/dvb/frontends/stv6110.c +++ b/drivers/media/dvb/frontends/stv6110.c @@ -37,6 +37,7 @@ struct stv6110_priv { u32 mclk; u8 clk_div; + u8 gain; u8 regs[8]; }; @@ -255,7 +256,7 @@ static int stv6110_set_frequency(struct dvb_frontend *fe, u32 frequency) u8 ret = 0x04; u32 divider, ref, p, presc, i, result_freq, vco_freq; s32 p_calc, p_calc_opt = 1000, r_div, r_div_opt = 0, p_val; - s32 srate; u8 gain; + s32 srate; dprintk("%s, freq=%d kHz, mclk=%d Hz\n", __func__, frequency, priv->mclk); @@ -273,15 +274,8 @@ static int stv6110_set_frequency(struct dvb_frontend *fe, u32 frequency) } else srate = 15000000; - if (srate >= 15000000) - gain = 3; /* +6 dB */ - else if (srate >= 5000000) - gain = 3; /* +6 dB */ - else - gain = 3; /* +6 dB */ - priv->regs[RSTV6110_CTRL2] &= ~0x0f; - priv->regs[RSTV6110_CTRL2] |= (gain & 0x0f); + priv->regs[RSTV6110_CTRL2] |= (priv->gain & 0x0f); if (frequency <= 1023000) { p = 1; @@ -436,6 +430,7 @@ struct dvb_frontend *stv6110_attach(struct dvb_frontend *fe, priv->i2c = i2c; priv->mclk = config->mclk; priv->clk_div = config->clk_div; + priv->gain = config->gain; memcpy(&priv->regs, ®0[1], 8); diff --git a/drivers/media/dvb/frontends/stv6110.h b/drivers/media/dvb/frontends/stv6110.h index 9db2402410f6..fe71bba6a26e 100644 --- a/drivers/media/dvb/frontends/stv6110.h +++ b/drivers/media/dvb/frontends/stv6110.h @@ -41,6 +41,7 @@ struct stv6110_config { u8 i2c_address; u32 mclk; + u8 gain; u8 clk_div; /* divisor value for the output clock */ }; |