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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2006-08-01 21:21:18 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2006-08-01 21:21:18 +0200 |
| commit | f7fca7e64853865c479e02267c40cf437f50d122 (patch) | |
| tree | 4f373feab0d96032d984634770a3246e561cd696 /linux/drivers/media/video | |
| parent | 0bc5bc4ebe982dfaec66c158ef40673f0e26452c (diff) | |
| download | mediapointer-dvb-s2-f7fca7e64853865c479e02267c40cf437f50d122.tar.gz mediapointer-dvb-s2-f7fca7e64853865c479e02267c40cf437f50d122.tar.bz2 | |
Turn on the Low Noise Amplifier of the Samsung tuners.
From: Hans Verkuil <hverkuil@xs4all.nl>
Without the LNA these tuners perform very poorly (read 'unwatchable') when
the signal is weak.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'linux/drivers/media/video')
| -rw-r--r-- | linux/drivers/media/video/tuner-types.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/linux/drivers/media/video/tuner-types.c b/linux/drivers/media/video/tuner-types.c index 34e2ef4cb..627470a08 100644 --- a/linux/drivers/media/video/tuner-types.c +++ b/linux/drivers/media/video/tuner-types.c @@ -1075,10 +1075,11 @@ static struct tuner_params tuner_tnf_5335mf_params[] = { /* 70-79 */ /* ------------ TUNER_SAMSUNG_TCPN_2121P30A - Samsung NTSC ------------ */ +/* '+ 4' turns on the Low Noise Amplifier */ static struct tuner_range tuner_samsung_tcpn_2121p30a_ntsc_ranges[] = { - { 16 * 130.00 /*MHz*/, 0xce, 0x01, }, - { 16 * 364.50 /*MHz*/, 0xce, 0x02, }, - { 16 * 999.99 , 0xce, 0x08, }, + { 16 * 130.00 /*MHz*/, 0xce, 0x01 + 4, }, + { 16 * 364.50 /*MHz*/, 0xce, 0x02 + 4, }, + { 16 * 999.99 , 0xce, 0x08 + 4, }, }; static struct tuner_params tuner_samsung_tcpn_2121p30a_params[] = { @@ -1108,10 +1109,11 @@ static struct tuner_params tuner_thomson_fe6600_params[] = { /* ------------ TUNER_SAMSUNG_TCPG_6121P30A - Samsung PAL ------------ */ +/* '+ 4' turns on the Low Noise Amplifier */ static struct tuner_range tuner_samsung_tcpg_6121p30a_pal_ranges[] = { - { 16 * 146.25 /*MHz*/, 0xce, 0x01, }, - { 16 * 428.50 /*MHz*/, 0xce, 0x02, }, - { 16 * 999.99 , 0xce, 0x08, }, + { 16 * 146.25 /*MHz*/, 0xce, 0x01 + 4, }, + { 16 * 428.50 /*MHz*/, 0xce, 0x02 + 4, }, + { 16 * 999.99 , 0xce, 0x08 + 4, }, }; static struct tuner_params tuner_samsung_tcpg_6121p30a_params[] = { |