From: Simon Arlott <simon@fire.lp0.eu>
To: lkml@vger.kernel.org, linux-media@vger.kernel.org,
Mauro Carvalho Chehab <mchehab@redhat.com>
Subject: [PATCH] dvb-core: fix DVBFE_ALGO_HW retune bug
Date: Mon, 06 Feb 2012 21:57:01 +0000 [thread overview]
Message-ID: <4F304CAD.5080700@simon.arlott.org.uk> (raw)
Commit 7e07222 breaks DVBFE_ALGO_HW tuning after a retune is requested,
which causes bad tuning on my TBS 6920.
[ 0.769091] pci 0000:06:00.0: [14f1:8852] type 0 class 0x000400
[ 19.733530] CORE cx23885[0]: subsystem: 6920:8888, board: TurboSight TBS 6920 [card=14,autodetected]
[ 762.824912] cx24116_load_firmware: FW version 1.23.86.1
7e0722215a510921cbb73ab4c37477d4dcb91bf8 [media] dvb-core: Don't pass DVBv3 parameters on tune() fops
Although re_tune is set to true when FESTATE_RETUNE occurs, it is never
set back to false which the old code used to do when !FESTATE_RETUNE.
This patch sets re_tune to false if !(state & FESTATE_RETUNE).
$ szap-s2 -a 2 "Channel 5"
reading channels from file '/home/simon/.szap/channels.conf'
zapping to 247 'Channel 5':
delivery DVB-S, modulation QPSK
sat 0, frequency 10964 MHz H, symbolrate 22000000, coderate 5/6, rolloff 0.35
vpid 0x092a, apid 0x092b, sid 0x092d
using '/dev/dvb/adapter2/frontend0' and '/dev/dvb/adapter2/demux0'
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eb33 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cf40 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cec0 | snr eccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal cec0 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
---
drivers/media/dvb/dvb-core/dvb_frontend.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index fbbe545..4555baa 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -655,6 +655,8 @@ restart:
dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__);
re_tune = true;
fepriv->state = FESTATE_TUNED;
+ } else {
+ re_tune = false;
}
if (fe->ops.tune)
--
1.7.8.rc3
--
Simon Arlott
reply other threads:[~2012-02-06 22:05 UTC|newest]
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