diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-04-06 04:35:27 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-04-14 19:43:40 -0300 |
| commit | a2192cf47f593681cd65798880853c5224066c81 (patch) | |
| tree | 1883c7aa872f02413ff8c3da558e40c4f3b3ab1c /drivers/media | |
| parent | d047795c590f63d42160b84ac778b09af297d914 (diff) | |
[media] tuner-core/tda9887: get_afc can be tuner mode specific
The get_afc op in tda9887 is valid only for the radio mode.
But due to the way get_afc in analog_demod_ops was designed it would
overwrite the afc value with a bogus value when in TV mode.
Pass a pointer to the afc value instead, and when not in radio mode
leave it alone in the tda9887.
This broke a long time ago in 2.6.19 when the get_afc op was introduced.
Before that the afc was only set for radio mode in the tda9887.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb-core/dvb_frontend.h | 2 | ||||
| -rw-r--r-- | drivers/media/tuners/tda9887.c | 14 | ||||
| -rw-r--r-- | drivers/media/v4l2-core/tuner-core.c | 14 |
3 files changed, 10 insertions, 20 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h index b34922a08156..44fad1cbcb09 100644 --- a/drivers/media/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb-core/dvb_frontend.h @@ -246,7 +246,7 @@ struct analog_demod_ops { void (*set_params)(struct dvb_frontend *fe, struct analog_parameters *params); int (*has_signal)(struct dvb_frontend *fe); - int (*get_afc)(struct dvb_frontend *fe); + int (*get_afc)(struct dvb_frontend *fe, s32 *afc); void (*tuner_status)(struct dvb_frontend *fe); void (*standby)(struct dvb_frontend *fe); void (*release)(struct dvb_frontend *fe); diff --git a/drivers/media/tuners/tda9887.c b/drivers/media/tuners/tda9887.c index cdb645d57438..300005c535ba 100644 --- a/drivers/media/tuners/tda9887.c +++ b/drivers/media/tuners/tda9887.c @@ -596,22 +596,22 @@ static void tda9887_tuner_status(struct dvb_frontend *fe) priv->data[1], priv->data[2], priv->data[3]); } -static int tda9887_get_afc(struct dvb_frontend *fe) +static int tda9887_get_afc(struct dvb_frontend *fe, s32 *afc) { struct tda9887_priv *priv = fe->analog_demod_priv; - static int AFC_BITS_2_kHz[] = { + static const int AFC_BITS_2_kHz[] = { -12500, -37500, -62500, -97500, -112500, -137500, -162500, -187500, 187500, 162500, 137500, 112500, 97500 , 62500, 37500 , 12500 }; - int afc=0; __u8 reg = 0; - if (1 == tuner_i2c_xfer_recv(&priv->i2c_props,®,1)) - afc = AFC_BITS_2_kHz[(reg>>1)&0x0f]; - - return afc; + if (priv->mode != V4L2_TUNER_RADIO) + return 0; + if (1 == tuner_i2c_xfer_recv(&priv->i2c_props, ®, 1)) + *afc = AFC_BITS_2_kHz[(reg >> 1) & 0x0f]; + return 0; } static void tda9887_standby(struct dvb_frontend *fe) diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c index 7d60c5d38ca0..a0b10e6b55ed 100644 --- a/drivers/media/v4l2-core/tuner-core.c +++ b/drivers/media/v4l2-core/tuner-core.c @@ -228,16 +228,6 @@ static int fe_has_signal(struct dvb_frontend *fe) return strength; } -static int fe_get_afc(struct dvb_frontend *fe) -{ - s32 afc; - - if (fe->ops.tuner_ops.get_afc(fe, &afc) < 0) - return 0; - - return afc; -} - static int fe_set_config(struct dvb_frontend *fe, void *priv_cfg) { struct dvb_tuner_ops *fe_tuner_ops = &fe->ops.tuner_ops; @@ -448,7 +438,7 @@ static void set_type(struct i2c_client *c, unsigned int type, if (fe_tuner_ops->get_rf_strength) analog_ops->has_signal = fe_has_signal; if (fe_tuner_ops->get_afc) - analog_ops->get_afc = fe_get_afc; + analog_ops->get_afc = fe_tuner_ops->get_afc; } else { t->name = analog_ops->info.name; @@ -1190,7 +1180,7 @@ static int tuner_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) if (check_mode(t, vt->type) == -EINVAL) return 0; if (vt->type == t->mode && analog_ops->get_afc) - vt->afc = analog_ops->get_afc(&t->fe); + analog_ops->get_afc(&t->fe, &vt->afc); if (analog_ops->has_signal) vt->signal = analog_ops->has_signal(&t->fe); if (vt->type != V4L2_TUNER_RADIO) { |