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authorDaniel Scheller <d.scheller@gmx.net>2018-05-09 16:08:03 -0400
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2018-05-28 17:47:05 -0400
commita00031c159748f322f771f3c1d5ed944cba4bd30 (patch)
tree854e46cd57c7fd3862491b74971f5c48528e2cf1
parent7069018ec3afd532ad2043d58ee87821a03d8df4 (diff)
media: ddbridge: conditionally enable fast TS for stv0910-equipped bridges
CineS2 V7(A) and Octopus CI S2 Pro/Advanced cards support faster TS speeds on the card's contained stv0910 demodulator when their FPGA was updated with a recent (>= 1.7, version number applies to all mentioned cards) vendor firmware. Enable this faster TS speed on card port 0 (contained demod) and parallel stv0910 connections when the card firmware is at least 1.7 or later. Note: The mentioned cards and their demods are handled via the STV0910_PR and STV0910_P tuner types. DuoFlex modules with such demodulators are handled via the STV0910 (without suffix) types where such TS speed increase doesn't technically make sense. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Tested-by: Richard Scobie <rascobie@slingshot.co.nz> Tested-by: Helmut Auer <post@helmutauer.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-rw-r--r--drivers/media/pci/ddbridge/ddbridge-core.c34
1 files changed, 29 insertions, 5 deletions
diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c
index 6c2341642017..d5b0d1eaf3ad 100644
--- a/drivers/media/pci/ddbridge/ddbridge-core.c
+++ b/drivers/media/pci/ddbridge/ddbridge-core.c
@@ -1191,7 +1191,7 @@ static const struct lnbh25_config lnbh25_cfg = {
.data2_config = LNBH25_TEN
};
-static int demod_attach_stv0910(struct ddb_input *input, int type)
+static int demod_attach_stv0910(struct ddb_input *input, int type, int tsfast)
{
struct i2c_adapter *i2c = &input->port->i2c->adap;
struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
@@ -1204,6 +1204,12 @@ static int demod_attach_stv0910(struct ddb_input *input, int type)
if (type)
cfg.parallel = 2;
+
+ if (tsfast) {
+ dev_info(dev, "Enabling stv0910 higher speed TS\n");
+ cfg.tsspeed = 0x10;
+ }
+
dvb->fe = dvb_attach(stv0910_attach, i2c, &cfg, (input->nr & 1));
if (!dvb->fe) {
cfg.adr = 0x6c;
@@ -1439,7 +1445,25 @@ static int dvb_input_attach(struct ddb_input *input)
struct ddb_port *port = input->port;
struct dvb_adapter *adap = dvb->adap;
struct dvb_demux *dvbdemux = &dvb->demux;
- int par = 0, osc24 = 0;
+ struct ddb_ids *devids = &input->port->dev->link[input->port->lnr].ids;
+ int par = 0, osc24 = 0, tsfast = 0;
+
+ /*
+ * Determine if bridges with stv0910 demods can run with fast TS and
+ * thus support high bandwidth transponders.
+ * STV0910_PR and STV0910_P tuner types covers all relevant bridges,
+ * namely the CineS2 V7(A) and the Octopus CI S2 Pro/Advanced. All
+ * DuoFlex S2 V4(A) have type=DDB_TUNER_DVBS_STV0910 without any suffix
+ * and are limited by the serial link to the bridge, thus won't work
+ * in fast TS mode.
+ */
+ if (port->nr == 0 &&
+ (port->type == DDB_TUNER_DVBS_STV0910_PR ||
+ port->type == DDB_TUNER_DVBS_STV0910_P)) {
+ /* fast TS on port 0 requires FPGA version >= 1.7 */
+ if ((devids->hwid & 0x00ffffff) >= 0x00010007)
+ tsfast = 1;
+ }
dvb->attached = 0x01;
@@ -1496,19 +1520,19 @@ static int dvb_input_attach(struct ddb_input *input)
goto err_tuner;
break;
case DDB_TUNER_DVBS_STV0910:
- if (demod_attach_stv0910(input, 0) < 0)
+ if (demod_attach_stv0910(input, 0, tsfast) < 0)
goto err_detach;
if (tuner_attach_stv6111(input, 0) < 0)
goto err_tuner;
break;
case DDB_TUNER_DVBS_STV0910_PR:
- if (demod_attach_stv0910(input, 1) < 0)
+ if (demod_attach_stv0910(input, 1, tsfast) < 0)
goto err_detach;
if (tuner_attach_stv6111(input, 1) < 0)
goto err_tuner;
break;
case DDB_TUNER_DVBS_STV0910_P:
- if (demod_attach_stv0910(input, 0) < 0)
+ if (demod_attach_stv0910(input, 0, tsfast) < 0)
goto err_detach;
if (tuner_attach_stv6111(input, 1) < 0)
goto err_tuner;

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