frodovdr/dddvb
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Code Issues Releases Wiki Activity

allow explicit setting of roll-off

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none 2021-03-18 10:39:07 +01:00
parent 2ac970ef83
commit 4b0a0c4ff2
1 changed files with 5 additions and 0 deletions
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5
ddbridge/ddbridge-sx8.c
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@ -255,6 +255,10 @@ static int start(struct dvb_frontend *fe, u32 flags, u32 modmask, u32 ts_config)
u32 bits_per_symbol = 0;
int i = -1, stat = 0;
struct ddb_link *link = state->mci.base->link;
const u8 ro_lut[8] = {
8 | SX8_ROLLOFF_35, 8 | SX8_ROLLOFF_20, 8 | SX8_ROLLOFF_25, 0,
8 | SX8_ROLLOFF_15, 8 | SX8_ROLLOFF_10, 8 | SX8_ROLLOFF_05, 0,
};
if (link->ids.device == 0x000b) {
/* Mask out higher modulations and MIS for Basic
@ -359,6 +363,7 @@ unlock:
cmd.command = MCI_CMD_SEARCH_DVBS;
cmd.dvbs2_search.flags = flags;
cmd.dvbs2_search.s2_modulation_mask = modmask;
cmd.dvbs2_search.rsvd1 = ro_lut[p->rolloff & 7];
cmd.dvbs2_search.retry = 2;
cmd.dvbs2_search.frequency = p->frequency * 1000;
cmd.dvbs2_search.symbol_rate = p->symbol_rate;