From: Andreas Regel <andreas.regel@gmx.de>
To: linux-media@vger.kernel.org
Subject: [PATCH 7/9] stv090x: additional check for signal presence based on AGC1
Date: Mon, 02 Nov 2009 23:51:26 +0100 [thread overview]
Message-ID: <4AEF626E.1070605@gmx.de> (raw)
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,
reply other threads:[~2009-11-02 22:51 UTC|newest]
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