[PATCH 7/9] stv090x: additional check for signal presence based on AGC1

[PATCH 7/9] stv090x: additional check for signal presence based on AGC1

[Andreas Regel]

This patch adds an additional check for signal presence based on AGC1.

Signed-off-by: Andreas Regel <andreas.regel@gmx.de>

diff -r c6b33af45211 linux/drivers/media/dvb/frontends/stv090x.c
--- a/linux/drivers/media/dvb/frontends/stv090x.c	Mon Nov 02 23:03:44 2009 +0100
+++ b/linux/drivers/media/dvb/frontends/stv090x.c	Mon Nov 02 23:08:29 2009 +0100
@@ -3997,7 +3997,7 @@
 	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);
@@ -4021,9 +4021,8 @@
 		}
 	}
 
-	/* 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);
diff -r c6b33af45211 linux/drivers/media/dvb/frontends/stv090x_priv.h
--- a/linux/drivers/media/dvb/frontends/stv090x_priv.h	Mon Nov 02 23:03:44 2009 +0100
+++ b/linux/drivers/media/dvb/frontends/stv090x_priv.h	Mon Nov 02 23:08:29 2009 +0100
@@ -91,6 +91,7 @@
 	STV090x_SEARCH_AGC2_TH_CUT30)
 
 enum stv090x_signal_state {
+	STV090x_NOAGC1,
 	STV090x_NOCARRIER,
 	STV090x_NODATA,
 	STV090x_DATAOK,