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[media] af9033: implement PID filter 

Implement PID filter and export it via symbol.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari 2014-02-13 15:40:59 -03:00 committed by Mauro Carvalho Chehab
parent 02b7220017
commit 040cf86c8a
2 changed files with 72 additions and 0 deletions
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53
drivers/media/dvb-frontends/af9033.c
View File

@ -989,6 +989,59 @@ err:
return ret;
}
int af9033_pid_filter_ctrl(struct dvb_frontend *fe, int onoff)
{
struct af9033_state *state = fe->demodulator_priv;
int ret;
dev_dbg(&state->i2c->dev, "%s: onoff=%d\n", __func__, onoff);
ret = af9033_wr_reg_mask(state, 0x80f993, onoff, 0x01);
if (ret < 0)
goto err;
return 0;
err:
dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
EXPORT_SYMBOL(af9033_pid_filter_ctrl);
int af9033_pid_filter(struct dvb_frontend *fe, int index, u16 pid, int onoff)
{
struct af9033_state *state = fe->demodulator_priv;
int ret;
u8 wbuf[2] = {(pid >> 0) & 0xff, (pid >> 8) & 0xff};
dev_dbg(&state->i2c->dev, "%s: index=%d pid=%04x onoff=%d\n",
__func__, index, pid, onoff);
if (pid > 0x1fff)
return 0;
ret = af9033_wr_regs(state, 0x80f996, wbuf, 2);
if (ret < 0)
goto err;
ret = af9033_wr_reg(state, 0x80f994, onoff);
if (ret < 0)
goto err;
ret = af9033_wr_reg(state, 0x80f995, index);
if (ret < 0)
goto err;
return 0;
err:
dev_dbg(&state->i2c->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
EXPORT_SYMBOL(af9033_pid_filter);
static struct dvb_frontend_ops af9033_ops;
struct dvb_frontend *af9033_attach(const struct af9033_config *config,

19
drivers/media/dvb-frontends/af9033.h
View File

@ -81,6 +81,11 @@ struct af9033_config {
#if IS_ENABLED(CONFIG_DVB_AF9033)
extern struct dvb_frontend *af9033_attach(const struct af9033_config *config,
struct i2c_adapter *i2c);
extern int af9033_pid_filter_ctrl(struct dvb_frontend *fe, int onoff);
extern int af9033_pid_filter(struct dvb_frontend *fe, int index, u16 pid,
int onoff);
#else
static inline struct dvb_frontend *af9033_attach(
const struct af9033_config *config, struct i2c_adapter *i2c)
@ -88,6 +93,20 @@ static inline struct dvb_frontend *af9033_attach(
pr_warn("%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
static inline int af9033_pid_filter_ctrl(struct dvb_frontend *fe, int onoff)
{
pr_warn("%s: driver disabled by Kconfig\n", __func__);
return -ENODEV;
}
static inline int af9033_pid_filter(struct dvb_frontend *fe, int index, u16 pid,
int onoff)
{
pr_warn("%s: driver disabled by Kconfig\n", __func__);
return -ENODEV;
}
#endif
#endif /* AF9033_H */