Implement partial PIP mode to carry TS from slave demodulator,
through that master demodulator. RTL2832 demod has TS input
interface to connected another demodulator TS output.
Signed-off-by: Antti Palosaari <crope@xxxxxx>
---
drivers/media/dvb-frontends/rtl2832.c | 60 +++++++++++++++++++++++++++++++++--
drivers/media/dvb-frontends/rtl2832.h | 11 +++++++
2 files changed, 68 insertions(+), 3 deletions(-)
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index eb737cf..9026e1a 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -258,13 +258,11 @@ static int rtl2832_rd_regs(struct rtl2832_priv *priv, u8 reg, u8 page, u8 *val,
return rtl2832_rd(priv, reg, val, len);
}
-#if 0 /* currently not used */
/* write single register */
static int rtl2832_wr_reg(struct rtl2832_priv *priv, u8 reg, u8 page, u8 val)
{
return rtl2832_wr_regs(priv, reg, page, &val, 1);
}
-#endif
/* read single register */
static int rtl2832_rd_reg(struct rtl2832_priv *priv, u8 reg, u8 page, u8 *val)
@@ -599,6 +597,11 @@ static int rtl2832_set_frontend(struct dvb_frontend *fe)
if (fe->ops.tuner_ops.set_params)
fe->ops.tuner_ops.set_params(fe);
+ /* PIP mode related */
+ ret = rtl2832_wr_regs(priv, 0x92, 1, "\x00\x0f\xff", 3);
+ if (ret)
+ goto err;
+
/* If the frontend has get_if_frequency(), use it */
if (fe->ops.tuner_ops.get_if_frequency) {
u32 if_freq;
@@ -661,7 +664,6 @@ static int rtl2832_set_frontend(struct dvb_frontend *fe)
if (ret)
goto err;
-
/* soft reset */
ret = rtl2832_wr_demod_reg(priv, DVBT_SOFT_RST, 0x1);
if (ret)
@@ -1020,6 +1022,58 @@ static int rtl2832_deselect(struct i2c_adapter *adap, void *mux_priv,
return 0;
}
+int rtl2832_enable_external_ts_if(struct dvb_frontend *fe)
+{
+ struct rtl2832_priv *priv = fe->demodulator_priv;
+ int ret;
+
+ dev_dbg(&priv->i2c->dev, "%s: setting PIP mode\n", __func__);
+
+ ret = rtl2832_wr_regs(priv, 0x0c, 1, "\x5f\xff", 2);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_demod_reg(priv, DVBT_PIP_ON, 0x1);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_reg(priv, 0xbc, 0, 0x18);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_reg(priv, 0x22, 0, 0x01);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_reg(priv, 0x26, 0, 0x1f);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_reg(priv, 0x27, 0, 0xff);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_regs(priv, 0x92, 1, "\x7f\xf7\xff", 3);
+ if (ret)
+ goto err;
+
+ /* soft reset */
+ ret = rtl2832_wr_demod_reg(priv, DVBT_SOFT_RST, 0x1);
+ if (ret)
+ goto err;
+
+ ret = rtl2832_wr_demod_reg(priv, DVBT_SOFT_RST, 0x0);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+ return ret;
+
+}
+EXPORT_SYMBOL(rtl2832_enable_external_ts_if);
+
struct i2c_adapter *rtl2832_get_i2c_adapter(struct dvb_frontend *fe)
{
struct rtl2832_priv *priv = fe->demodulator_priv;
diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h
index cb3b6b0..5254c1d 100644
--- a/drivers/media/dvb-frontends/rtl2832.h
+++ b/drivers/media/dvb-frontends/rtl2832.h
@@ -64,6 +64,10 @@ extern struct i2c_adapter *rtl2832_get_private_i2c_adapter(
struct dvb_frontend *fe
);
+extern int rtl2832_enable_external_ts_if(
+ struct dvb_frontend *fe
+);
+
#else
static inline struct dvb_frontend *rtl2832_attach(
@@ -89,6 +93,13 @@ static inline struct i2c_adapter *rtl2832_get_private_i2c_adapter(
return NULL;
}
+static inline int rtl2832_enable_external_ts_if(
+ struct dvb_frontend *fe
+)
+{
+ return -ENODEV;
+}
+
#endif
--
http://palosaari.fi/
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