cxd2820r_t2: Multistream support (MultiPLP)

MultiPLP filtering support for CXD2820r, not tested.
Somebody from Russia please test (exclude Moscow, because used singlePLP). Usual used PLP 0 (4TV + 3 radio) and 1 (4TV). PLP 2,3 reserved (regional channels).

P.S. You can use my scan-s2 with multistream support - https://bitbucket.org/CrazyCat/scan-s2. Generated channel list compatible with current VDR 1.7.3x

Signed-off-by Evgeny Plehov <[email protected]>

drivers/media/dvb-frontends/cxd2820r_core.c +2 -1

index 9b658c1..7ca5c69 100644
@@ -660,7 +660,8 @@ static const struct dvb_frontend_ops cxd2820r_ops = {
  			FE_CAN_GUARD_INTERVAL_AUTO	|
  			FE_CAN_HIERARCHY_AUTO		|
  			FE_CAN_MUTE_TS			|
-			FE_CAN_2G_MODULATION
+			FE_CAN_2G_MODULATION		|
+			FE_CAN_MULTISTREAM
  		},
 
  	.release		= cxd2820r_release,

drivers/media/dvb-frontends/cxd2820r_t2.c +17 -1

index e82d82a..c2bfea7 100644
@@ -124,6 +124,23 @@ int cxd2820r_set_frontend_t2(struct dvb_frontend *fe)
  	buf[1] = ((if_ctl >>  8) & 0xff);
  	buf[2] = ((if_ctl >>  0) & 0xff);
 
+	/* PLP filtering */
+	if (c->stream_id < 0 || c->stream_id > 255) {
+		dev_dbg(&priv->i2c->dev, "%s: Disable PLP filtering\n", __func__);
+		ret = cxd2820r_wr_reg(priv, 0x023ad , 0);
+		if (ret)
+			goto error;
+	} else {
+		dev_dbg(&priv->i2c->dev, "%s: Enable PLP filtering = %d\n", __func__,
+				c->stream_id);
+		ret = cxd2820r_wr_reg(priv, 0x023af , c->stream_id & 0xFF);
+		if (ret)
+			goto error;
+		ret = cxd2820r_wr_reg(priv, 0x023ad , 1);
+		if (ret)
+			goto error;
+	}
+
  	ret = cxd2820r_wr_regs(priv, 0x020b6, buf, 3);
  	if (ret)
  		goto error;
--

To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html

Is there anyone who could test that patch?

I have no multi PLP signal here.

Also there is minor issue on that patch. As stream ID validy is already checked there is no reason for bit AND 0xff.