diff options
| author | Athanasios Oikonomou <athoik@gmail.com> | 2017-12-16 07:23:39 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-12-19 07:12:59 -0500 |
| commit | 93314453a976c2c78950b86bcd74bc01a3a86651 (patch) | |
| tree | b7023b6720a5f86c3f63b79e8b207c490f50a235 /drivers/media/dvb-frontends/stv090x.c | |
| parent | f9d79126195374c285035777b9d6abd24ceba363 (diff) | |
media: stv090x: add physical layer scrambling support
This commit uses the new property scrambling_sequence_index
to control PLS.
By default we are using the gold sequence 0 and only gold sequences
expected on the new property.
Please note that all services use PLS, just most with the default
sequence 0 and many demods only support gold 0.
Signed-off-by: Athanasios Oikonomou <athoik@gmail.com>
Acked-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/dvb-frontends/stv090x.c')
| -rw-r--r-- | drivers/media/dvb-frontends/stv090x.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/stv090x.c b/drivers/media/dvb-frontends/stv090x.c index 77510bc95dcf..e33fb656b7a5 100644 --- a/drivers/media/dvb-frontends/stv090x.c +++ b/drivers/media/dvb-frontends/stv090x.c @@ -3430,6 +3430,21 @@ err: return -1; } +static int stv090x_set_pls(struct stv090x_state *state, u32 pls_code) +{ + dprintk(FE_DEBUG, 1, "Set Gold PLS code %d", pls_code); + if (STV090x_WRITE_DEMOD(state, PLROOT0, pls_code & 0xff) < 0) + goto err; + if (STV090x_WRITE_DEMOD(state, PLROOT1, (pls_code >> 8) & 0xff) < 0) + goto err; + if (STV090x_WRITE_DEMOD(state, PLROOT2, 0x04 | (pls_code >> 16)) < 0) + goto err; + return 0; +err: + dprintk(FE_ERROR, 1, "I/O error"); + return -1; +} + static int stv090x_set_mis(struct stv090x_state *state, int mis) { u32 reg; @@ -3492,6 +3507,7 @@ static enum dvbfe_search stv090x_search(struct dvb_frontend *fe) state->search_range = 5000000; } + stv090x_set_pls(state, props->scrambling_sequence_index); stv090x_set_mis(state, props->stream_id); if (stv090x_algo(state) == STV090x_RANGEOK) { |