[media] add driver for mt2063

Those files are marked as licensed with GPL, so, it is ok to
merge. They came from Terratec site:

http://linux.terratec.de/files/TERRATEC_H7/20110323_TERRATEC_H7_Linux.tar.gzSigned-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/mt2063_cfg.h

+
+
+static unsigned int mt2063_setTune(struct dvb_frontend *fe, UData_t f_in,UData_t bw_in, enum MTTune_atv_standard tv_type)
+{
+	//return (int)MT_Tune_atv(h, f_in, bw_in, tv_type);
+
+	struct dvb_frontend_ops	*frontend_ops = NULL;
+	struct dvb_tuner_ops	*tuner_ops = NULL;
+	struct tuner_state	t_state;
+	struct mt2063_state *mt2063State = fe->tuner_priv;
+	int err = 0;
+
+	t_state.frequency = f_in;
+	t_state.bandwidth = bw_in;
+	mt2063State->tv_type = tv_type;
+	if (&fe->ops)
+		frontend_ops = &fe->ops;
+	if (&frontend_ops->tuner_ops)
+		tuner_ops = &frontend_ops->tuner_ops;
+	if (tuner_ops->set_state) {
+		if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_FREQUENCY, &t_state)) < 0) {
+			printk("%s: Invalid parameter\n", __func__);
+			return err;
+		}
+	}
+	
+	return err;
+}
+
+static unsigned int mt2063_lockStatus(struct dvb_frontend *fe)
+{
+	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
+	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
+	struct tuner_state	t_state;
+	int err = 0;
+
+	if (&fe->ops)
+		frontend_ops = &fe->ops;
+	if (&frontend_ops->tuner_ops)
+		tuner_ops = &frontend_ops->tuner_ops;
+	if (tuner_ops->get_state) {
+		if ((err = tuner_ops->get_state(fe, DVBFE_TUNER_REFCLOCK, &t_state)) < 0) {
+			printk("%s: Invalid parameter\n", __func__);
+			return err;
+		}
+	}
+	return err;
+}
+
+static unsigned int tuner_MT2063_Open(struct dvb_frontend *fe)
+{
+	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
+	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
+	struct tuner_state	t_state;
+	int err = 0;
+
+	if (&fe->ops)
+		frontend_ops = &fe->ops;
+	if (&frontend_ops->tuner_ops)
+		tuner_ops = &frontend_ops->tuner_ops;
+	if (tuner_ops->set_state) {
+		if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_OPEN, &t_state)) < 0) {
+			printk("%s: Invalid parameter\n", __func__);
+			return err;
+		}
+	}
+	
+	return err;
+}
+
+static unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe)
+{
+	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
+	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
+	struct tuner_state	t_state;
+	int err = 0;
+
+	if (&fe->ops)
+		frontend_ops = &fe->ops;
+	if (&frontend_ops->tuner_ops)
+		tuner_ops = &frontend_ops->tuner_ops;
+	if (tuner_ops->set_state) {
+		if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_SOFTWARE_SHUTDOWN, &t_state)) < 0) {
+			printk("%s: Invalid parameter\n", __func__);
+			return err;
+		}
+	}
+	
+	return err;
+}
+
+static unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe)
+{
+	struct dvb_frontend_ops	*frontend_ops = &fe->ops;
+	struct dvb_tuner_ops	*tuner_ops = &frontend_ops->tuner_ops;
+	struct tuner_state	t_state;
+	int err = 0;
+
+	if (&fe->ops)
+		frontend_ops = &fe->ops;
+	if (&frontend_ops->tuner_ops)
+		tuner_ops = &frontend_ops->tuner_ops;
+	if (tuner_ops->set_state) {
+		if ((err = tuner_ops->set_state(fe, DVBFE_TUNER_CLEAR_POWER_MASKBITS, &t_state)) < 0) {
+			printk("%s: Invalid parameter\n", __func__);
+			return err;
+		}
+	}
+	
+	return err;
+}