From: Athanasios Oikonomou Date: Sat, 16 Dec 2017 12:23:39 +0000 (-0500) Subject: media: stv090x: add physical layer scrambling support X-Git-Tag: v5.15~9456^2~133 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=93314453a976c2c78950b86bcd74bc01a3a86651;p=platform%2Fkernel%2Flinux-starfive.git 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 Acked-by: Ralph Metzler Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/dvb-frontends/stv090x.c b/drivers/media/dvb-frontends/stv090x.c index 77510bc..e33fb65 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) {