Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 483deb0f authored Dec 04, 2006 by Mauro Carvalho Chehab

V4L/DVB (4935): Added the capability of selecting fm gain by tuner



Some tuners require using cGainNormal instead of cGainLow for
high sensibility on FM reception.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

parent cefccc80

drivers/media/video/tuner-simple.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -467,6 +467,8 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
	config \|= TDA9887_INTERCARRIER;		config \|= TDA9887_INTERCARRIER;
	/* if (params->port1_set_for_fm_mono)		/* if (params->port1_set_for_fm_mono)
	config &= ~TDA9887_PORT1_ACTIVE;*/		config &= ~TDA9887_PORT1_ACTIVE;*/
			if (params->fm_gain_normal)
			config \|= TDA9887_GAIN_NORMAL;
	i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);		i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
	}		}
	if (4 != (rc = i2c_master_send(c,buffer,4)))		if (4 != (rc = i2c_master_send(c,buffer,4)))

include/media/tuner-types.h

+4 −0

Original line number	Original line	Diff line number	Diff line
	@@ -50,6 +50,10 @@ struct tuner_params {
	sensitivity. If this setting is 1, then set PORT2 to 1 to		sensitivity. If this setting is 1, then set PORT2 to 1 to
	get proper FM reception. */		get proper FM reception. */
	unsigned int port2_fm_high_sensitivity:1;		unsigned int port2_fm_high_sensitivity:1;
			/* Some Philips tuners use tda9887 cGainNormal to select the FM radio
			sensitivity. If this setting is 1, e register will use cGainNormal
			instead of cGainLow. */
			unsigned int fm_gain_normal:1;
	/* Most tuners with a tda9887 use QSS mode. Some (cheaper) tuners		/* Most tuners with a tda9887 use QSS mode. Some (cheaper) tuners
	use Intercarrier mode. If this setting is 1, then the tuner		use Intercarrier mode. If this setting is 1, then the tuner
	needs to be set to intercarrier mode. */		needs to be set to intercarrier mode. */