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media: dvb-frontends\gx1133: Modcode filter support (only one modcode with pilot and long frame).

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This commit is contained in:
CrazyCat
2024-04-15 01:06:26 +03:00
parent c3c0c45405
commit 9a2b67c9d4
2 changed files with 25 additions and 4 deletions
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27
drivers/media/dvb-frontends/gx1133.c
View File

@@ -1447,7 +1447,7 @@ static int gx1133_set_frontend(struct dvb_frontend *fe)
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
enum fe_status tunerstat;
int ret, i;
u32 s, pls_mode, pls_code;
u32 s, pls_mode, pls_code, modcode;
u8 isi;
u8 buf[4],temp;
@@ -1500,6 +1500,11 @@ static int gx1133_set_frontend(struct dvb_frontend *fe)
gx1133_rd(priv,DVB_S2,GX1133_LDPC_TSID_CTRL,&temp);
temp&=0xfe;
gx1133_wr(priv,DVB_S2,GX1133_LDPC_TSID_CTRL,temp);
/* Reset MODCODE filter */
gx1133_rd(priv,DVB_S2,GX1133_LDPC_PLS_CTRL,&temp);
temp&=0xfe;
gx1133_wr(priv,DVB_S2,GX1133_LDPC_PLS_CTRL,temp);
gx1133_rd(priv,DVB_S2,GX1133_AUTO_RST,&temp);
temp|=0x01;
@@ -1554,9 +1559,9 @@ static int gx1133_set_frontend(struct dvb_frontend *fe)
ret = gx1133_read_status(fe, &tunerstat);
if (tunerstat & FE_HAS_LOCK)
{
/* Setup ISI filtering */
if (c->delivery_system == SYS_DVBS2)
{
/* Setup ISI filtering */
gx1133_rd(priv,DVB_S2,GX1133_LDPC_TSID_CTRL,&temp);
if (c->stream_id != NO_STREAM_ID_FILTER)
temp|=1;
@@ -1564,7 +1569,23 @@ static int gx1133_set_frontend(struct dvb_frontend *fe)
temp&=0xfe;
gx1133_wr(priv,DVB_S2,GX1133_LDPC_TSID_CTRL,temp);
gx1133_wr(priv,DVB_S2,GX1133_LDPC_TSID_CFG,isi);
/* Setup MODCODE filtering */
gx1133_rd(priv,DVB_S2,GX1133_LDPC_PLS_CTRL,&temp);
if (c->modcode == MODCODE_ALL)
temp&=0xfe;
else
{
modcode = c->modcode;
for (i = 1; i < 29; i++)
{
modcode = modcode>>1;
if (modcode&1)
break;
}
temp = (1<<7) | (i<<1) | 1 ;
}
gx1133_wr(priv,DVB_S2,GX1133_LDPC_PLS_CTRL,temp);
}
return 0;
}

2
drivers/media/dvb-frontends/gx1133_priv.h
View File

@@ -527,4 +527,4 @@ static struct gx1133_modfec gx1133_modfec_modes[] = {
{ SYS_DVBS2, APSK_32, FEC_9_10 },
};
#endif /* TAS2101_PRIV_H */
#endif /* GX1133_PRIV_H */