Implement PID filter. This demod has PID filter size of 32 PIDs.
Signed-off-by: Antti Palosaari <crope@xxxxxx>
---
drivers/media/dvb-frontends/rtl2832.c | 69 ++++++++++++++++++++++++++++++
drivers/media/dvb-frontends/rtl2832.h | 2 +
drivers/media/dvb-frontends/rtl2832_priv.h | 1 +
3 files changed, 72 insertions(+)
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index b80e1c0..b8e7971 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -1145,6 +1145,73 @@ err:
return ret;
}
+static int rtl2832_pid_filter_ctrl(struct dvb_frontend *fe, int onoff)
+{
+ struct rtl2832_dev *dev = fe->demodulator_priv;
+ struct i2c_client *client = dev->client;
+ int ret;
+ u8 u8tmp;
+
+ dev_dbg(&client->dev, "onoff=%d\n", onoff);
+
+ /* enable / disable PID filter */
+ if (onoff)
+ u8tmp = 0x80;
+ else
+ u8tmp = 0x00;
+
+ ret = rtl2832_update_bits(client, 0x061, 0xc0, u8tmp);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int rtl2832_pid_filter(struct dvb_frontend *fe, u8 index, u16 pid,
+ int onoff)
+{
+ struct rtl2832_dev *dev = fe->demodulator_priv;
+ struct i2c_client *client = dev->client;
+ int ret;
+ u8 buf[4];
+
+ dev_dbg(&client->dev, "index=%d pid=%04x onoff=%d\n",
+ index, pid, onoff);
+
+ /* skip invalid PIDs (0x2000) */
+ if (pid > 0x1fff || index > 32)
+ return 0;
+
+ if (onoff)
+ set_bit(index, &dev->filters);
+ else
+ clear_bit(index, &dev->filters);
+
+ /* enable / disable PIDs */
+ buf[0] = (dev->filters >> 0) & 0xff;
+ buf[1] = (dev->filters >> 8) & 0xff;
+ buf[2] = (dev->filters >> 16) & 0xff;
+ buf[3] = (dev->filters >> 24) & 0xff;
+ ret = rtl2832_bulk_write(client, 0x062, buf, 4);
+ if (ret)
+ goto err;
+
+ /* add PID */
+ buf[0] = (pid >> 8) & 0xff;
+ buf[1] = (pid >> 0) & 0xff;
+ ret = rtl2832_bulk_write(client, 0x066 + 2 * index, buf, 2);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
static int rtl2832_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1240,6 +1307,8 @@ static int rtl2832_probe(struct i2c_client *client,
pdata->get_i2c_adapter = rtl2832_get_i2c_adapter_;
pdata->get_private_i2c_adapter = rtl2832_get_private_i2c_adapter_;
pdata->enable_slave_ts = rtl2832_enable_slave_ts;
+ pdata->pid_filter = rtl2832_pid_filter;
+ pdata->pid_filter_ctrl = rtl2832_pid_filter_ctrl;
dev_info(&client->dev, "Realtek RTL2832 successfully attached\n");
return 0;
diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h
index 35e86e6..e79c479 100644
--- a/drivers/media/dvb-frontends/rtl2832.h
+++ b/drivers/media/dvb-frontends/rtl2832.h
@@ -78,6 +78,8 @@ struct rtl2832_platform_data {
struct i2c_adapter* (*get_i2c_adapter)(struct i2c_client *);
struct i2c_adapter* (*get_private_i2c_adapter)(struct i2c_client *);
int (*enable_slave_ts)(struct i2c_client *);
+ int (*pid_filter)(struct dvb_frontend *, u8, u16, int);
+ int (*pid_filter_ctrl)(struct dvb_frontend *, int);
};
#endif /* RTL2832_H */
diff --git a/drivers/media/dvb-frontends/rtl2832_priv.h b/drivers/media/dvb-frontends/rtl2832_priv.h
index 6f3fe77..216e905 100644
--- a/drivers/media/dvb-frontends/rtl2832_priv.h
+++ b/drivers/media/dvb-frontends/rtl2832_priv.h
@@ -41,6 +41,7 @@ struct rtl2832_dev {
u64 post_bit_count;
bool sleeping;
struct delayed_work i2c_gate_work;
+ unsigned long filters; /* PID filter */
};
struct rtl2832_reg_entry {
--
http://palosaari.fi/
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
