diff options
| author | Oliver Endriss <o.endriss@gmx.de> | 2007-05-28 18:06:27 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-06-08 08:21:13 -0300 |
| commit | c6604150ab04aaaf98baf1ddca2e9e4f7d3da4d3 (patch) | |
| tree | 61ff048d9c9b8b4f1c8d9a8b729ed847cc79f2ac /drivers/media/dvb/frontends/tda826x.c | |
| parent | dc02d50a6d71cba2b2edb78377af5a5965879a49 (diff) | |
V4L/DVB (5716): Tda10086,tda826x: fix tuning, STR/SNR values
Several people reported unreliable reception with the current driver.
Furthermore, STR and SNR values seem to be inverted.
This fix is based on a patch posted by Hartmut Hackman.
Thanks to Helmut Auer for testing and helping to optimize the patch.
tda826x:
- set baseband cut-off to 19 MHz
tda10086:
- change the parameters of the carrier recovery loop
- toggle register 0x02 between 0x35 (tuning) and 0x00 (locked)
- invert STR and SNR values
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends/tda826x.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda826x.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/tda826x.c b/drivers/media/dvb/frontends/tda826x.c index 79f971dc52b..bd3ebc28483 100644 --- a/drivers/media/dvb/frontends/tda826x.c +++ b/drivers/media/dvb/frontends/tda826x.c @@ -89,8 +89,8 @@ static int tda826x_set_params(struct dvb_frontend *fe, struct dvb_frontend_param buf[2] = (1<<5) | 0x0b; // 1Mhz + 0.45 VCO buf[3] = div >> 7; buf[4] = div << 1; - buf[5] = 0xff; // basedband filter to max - buf[6] = 0xfe; // gains at max + no RF attenuation + buf[5] = 0x77; // baseband cut-off 19 MHz + buf[6] = 0xfe; // baseband gain 9 db + no RF attenuation buf[7] = 0x83; // charge pumps at high, tests off buf[8] = 0x80; // recommended value 4 for AMPVCO + disable ports. buf[9] = 0x1a; // normal caltime + recommended values for SELTH + SELVTL |