diff options
| author | Michael Krufky <mkrufky@linuxtv.org> | 2008-04-22 14:42:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-24 14:07:43 -0300 |
| commit | 4d2d42bcd8c73273f22d16ef4e619ce3f07f07d0 (patch) | |
| tree | 9b32d68a60158c7c9a8e794d9583d8dd9bbad4f3 /drivers/media/dvb | |
| parent | a60b866567001e97b5bdc9811aee155ae759e48f (diff) | |
V4L/DVB (7212): tda18271: move rf calibration code from tda18271c1_tune into a new function
move rf calibration code from tda18271c1_tune into a new function,
tda18271c1_rf_tracking_filter_calibration
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271-fe.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c index 26042a977e4..250899a90aa 100644 --- a/drivers/media/dvb/frontends/tda18271-fe.c +++ b/drivers/media/dvb/frontends/tda18271-fe.c @@ -652,21 +652,13 @@ static int tda18271c2_tune(struct dvb_frontend *fe, /* ------------------------------------------------------------------ */ -static int tda18271c1_tune(struct dvb_frontend *fe, - u32 ifc, u32 freq, u32 bw, u8 std, int radio) +static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe, + u32 freq, u32 bw) { struct tda18271_priv *priv = fe->tuner_priv; unsigned char *regs = priv->tda18271_regs; u32 N = 0; - tda18271_init(fe); - - mutex_lock(&priv->lock); - - tda_dbg("freq = %d, ifc = %d\n", freq, ifc); - - /* RF tracking filter calibration */ - /* calculate bp filter */ tda18271_calc_bp_filter(fe, &freq); tda18271_write_regs(fe, R_EP1, 1); @@ -737,7 +729,7 @@ static int tda18271c1_tune(struct dvb_frontend *fe, regs[R_EB7] = 0x40; tda18271_write_regs(fe, R_EB7, 1); - msleep(10); + msleep(10); /* pll locking */ regs[R_EB20] = 0xec; tda18271_write_regs(fe, R_EB20, 1); @@ -752,6 +744,22 @@ static int tda18271c1_tune(struct dvb_frontend *fe, if (0 == tda18271_calc_rf_cal(fe, &freq)) tda18271_write_regs(fe, R_EB14, 1); + return 0; +} + +static int tda18271c1_tune(struct dvb_frontend *fe, + u32 ifc, u32 freq, u32 bw, u8 std, int radio) +{ + struct tda18271_priv *priv = fe->tuner_priv; + + tda18271_init(fe); + + mutex_lock(&priv->lock); + + tda_dbg("freq = %d, ifc = %d\n", freq, ifc); + + tda18271c1_rf_tracking_filter_calibration(fe, freq, bw); + tda18271_channel_configuration(fe, ifc, freq, bw, std, radio); mutex_unlock(&priv->lock); |