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V4L/DVB (13357): stv090x: adds an additional check for signal presence based on AGC1

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Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andreas Regel 2009-11-13 18:18:53 -03:00 committed by Mauro Carvalho Chehab
parent a4978a83e5
commit c4fa649a3b
2 changed files with 4 additions and 4 deletions
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7
drivers/media/dvb/frontends/stv090x.c
View File

@ -3185,7 +3185,7 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
lock = 0;
signal_state = STV090x_NOAGC1;
} else {
reg = STV090x_READ_DEMOD(state, DEMOD);
STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
@ -3209,9 +3209,8 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
}
}
/* need to check for AGC1 state */
if (signal_state == STV090x_NOAGC1)
return signal_state;
if (state->algo == STV090x_BLIND_SEARCH)
lock = stv090x_blind_search(state);

1
drivers/media/dvb/frontends/stv090x_priv.h
View File

@ -91,6 +91,7 @@
STV090x_SEARCH_AGC2_TH_CUT30)
enum stv090x_signal_state {
STV090x_NOAGC1,
STV090x_NOCARRIER,
STV090x_NODATA,
STV090x_DATAOK,