Support Physical Layer Scrambling

index 2afaa82..e192876 100644
@@ -982,6 +982,7 @@ static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
 	}
 
 	c->stream_id = NO_STREAM_ID_FILTER;
+	c->scrambling_sequence_index = 0;/* default sequence */
 
 	switch (c->delivery_system) {
 	case SYS_DVBS:

@@ -1072,6 +1073,7 @@ static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = {
 
 	_DTV_CMD(DTV_STREAM_ID, 1, 0),
 	_DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0),
+	_DTV_CMD(DTV_SCRAMBLING_SEQUENCE_INDEX, 1, 0),
 	_DTV_CMD(DTV_LNA, 1, 0),
 
 	/* Get */

@@ -1417,6 +1419,11 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
 		tvp->u.data = c->stream_id;
 		break;
 
+	/* Physical layer scrambling support */
+	case DTV_SCRAMBLING_SEQUENCE_INDEX:
+		tvp->u.data = c->scrambling_sequence_index;
+		break;
+
 	/* ATSC-MH */
 	case DTV_ATSCMH_FIC_VER:
 		tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver;

@@ -1900,6 +1907,11 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
 		c->stream_id = data;
 		break;
 
+	/* Physical layer scrambling support */
+	case DTV_SCRAMBLING_SEQUENCE_INDEX:
+		c->scrambling_sequence_index = data;
+		break;
+
 	/* ATSC-MH */
 	case DTV_ATSCMH_PARADE_ID:
 		fe->dtv_property_cache.atscmh_parade_id = data;

index ace0c2f..2bc25f1 100644
@@ -513,6 +513,8 @@ struct dvb_fe_events {
  * @layer.interleaving:	 per layer interleaving.
  * @stream_id:		If different than zero, enable substream filtering, if
  *			hardware supports (DVB-S2 and DVB-T2).
+ * @scrambling_sequence_index:	Carries the index of the DVB-S2 physical layer
+ *				scrambling sequence.
  * @atscmh_fic_ver:	Version number of the FIC (Fast Information Channel)
  *			signaling data (only ATSC-M/H)
  * @atscmh_parade_id:	Parade identification number (only ATSC-M/H)

@@ -591,6 +593,9 @@ struct dtv_frontend_properties {
 	/* Multistream specifics */
 	u32			stream_id;
 
+	/* Physical Layer Scrambling specifics */
+	u32			scrambling_sequence_index;
+
 	/* ATSC-MH specifics */
 	u8			atscmh_fic_ver;
 	u8			atscmh_parade_id;

index b297b65..9218cd6 100644
@@ -547,7 +547,10 @@ enum fe_interleaving {
 #define DTV_STAT_ERROR_BLOCK_COUNT	68
 #define DTV_STAT_TOTAL_BLOCK_COUNT	69
 
-#define DTV_MAX_COMMAND		DTV_STAT_TOTAL_BLOCK_COUNT
+/* Physical layer scrambling */
+#define DTV_SCRAMBLING_SEQUENCE_INDEX	70
+
+#define DTV_MAX_COMMAND		DTV_SCRAMBLING_SEQUENCE_INDEX
 
 /**
  * enum fe_pilot - Type of pilot tone

index 02e32ea..2c5cffe 100644
@@ -25,6 +25,6 @@
 #define _DVBVERSION_H_
 
 #define DVB_API_VERSION 5
-#define DVB_API_VERSION_MINOR 10
+#define DVB_API_VERSION_MINOR 11
 
 #endif /*_DVBVERSION_H_*/

index 7ef469c..9369a11 100644
@@ -3429,6 +3429,21 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
 	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;

@@ -3491,6 +3506,7 @@ 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) {