Implement PID filter.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/dvb-frontends/rtl2830.c | 67 ++++++++++++++++++++++++++++++
drivers/media/dvb-frontends/rtl2830.h | 2 +
drivers/media/dvb-frontends/rtl2830_priv.h | 1 +
3 files changed, 70 insertions(+)
diff --git a/drivers/media/dvb-frontends/rtl2830.c
b/drivers/media/dvb-frontends/rtl2830.c
index f1f1cfb..8abaca6 100644
--- a/drivers/media/dvb-frontends/rtl2830.c
+++ b/drivers/media/dvb-frontends/rtl2830.c
@@ -723,6 +723,71 @@ err:
dev_dbg(&client->dev, "failed=%d\n", ret);
}
+static int rtl2830_pid_filter_ctrl(struct dvb_frontend *fe, int onoff)
+{
+ struct i2c_client *client = fe->demodulator_priv;
+ int ret;
+ u8 u8tmp;
+
+ dev_dbg(&client->dev, "onoff=%d\n", onoff);
+
+ /* enable / disable PID filter */
+ if (onoff)
+ u8tmp = 0x80;
+ else
+ u8tmp = 0x00;
+
+ ret = rtl2830_wr_reg_mask(client, 0x061, u8tmp, 0x80);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
+static int rtl2830_pid_filter(struct dvb_frontend *fe, u8 index, u16 pid, int
onoff)
+{
+ struct i2c_client *client = fe->demodulator_priv;
+ struct rtl2830_dev *dev = i2c_get_clientdata(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 = rtl2830_wr_regs(client, 0x062, buf, 4);
+ if (ret)
+ goto err;
+
+ /* add PID */
+ buf[0] = (pid >> 8) & 0xff;
+ buf[1] = (pid >> 0) & 0xff;
+ ret = rtl2830_wr_regs(client, 0x066 + 2 * index, buf, 2);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ dev_dbg(&client->dev, "failed=%d\n", ret);
+ return ret;
+}
+
/*
* I2C gate/repeater logic
* We must use unlocked i2c_transfer() here because I2C lock is already taken
@@ -843,6 +908,8 @@ static int rtl2830_probe(struct i2c_client *client,
/* setup callbacks */
pdata->get_dvb_frontend = rtl2830_get_dvb_frontend;
pdata->get_i2c_adapter = rtl2830_get_i2c_adapter;
+ pdata->pid_filter = rtl2830_pid_filter;
+ pdata->pid_filter_ctrl = rtl2830_pid_filter_ctrl;
dev_info(&client->dev, "Realtek RTL2830 successfully attached\n");
diff --git a/drivers/media/dvb-frontends/rtl2830.h
b/drivers/media/dvb-frontends/rtl2830.h
index 61f784c..156edf7 100644
--- a/drivers/media/dvb-frontends/rtl2830.h
+++ b/drivers/media/dvb-frontends/rtl2830.h
@@ -49,6 +49,8 @@ struct rtl2830_platform_data {
*/
struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
struct i2c_adapter* (*get_i2c_adapter)(struct i2c_client *);
+ int (*pid_filter)(struct dvb_frontend *, u8, u16, int);
+ int (*pid_filter_ctrl)(struct dvb_frontend *, int);
};
#endif /* RTL2830_H */
diff --git a/drivers/media/dvb-frontends/rtl2830_priv.h
b/drivers/media/dvb-frontends/rtl2830_priv.h
index 6a0e982..2931889 100644
--- a/drivers/media/dvb-frontends/rtl2830_priv.h
+++ b/drivers/media/dvb-frontends/rtl2830_priv.h
@@ -31,6 +31,7 @@ struct rtl2830_dev {
struct dvb_frontend fe;
bool sleeping;
u8 page; /* active register page */
+ unsigned long filters;
struct delayed_work stat_work;
fe_status_t fe_status;
u64 post_bit_error_prev; /* for old DVBv3 read_ber() calculation */
--
http://palosaari.fi/
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