V4L/DVB (11803): xc5000: add support for DVB-T tuning

This patch adds XC5000 supports for DVB-T 6MHz and 8MHz bandwidth.
Signed-off-by: David T.L. Wong <davidtlwong@gmail.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/xc5000.c

@@ -636,6 +636,8 @@ static int xc5000_set_params(struct dvb_frontend *fe,
 
 	dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
 
+	if (fe->ops.info.type == FE_ATSC) {
+		dprintk(1, "%s() ATSC\n", __func__);
 		switch (params->u.vsb.modulation) {
 		case VSB_8:
 		case VSB_16:
@@ -657,6 +659,31 @@ static int xc5000_set_params(struct dvb_frontend *fe,
 		default:
 			return -EINVAL;
 		}
+	} else if (fe->ops.info.type == FE_OFDM) {
+		dprintk(1, "%s() OFDM\n", __func__);
+		switch (params->u.ofdm.bandwidth) {
+		case BANDWIDTH_6_MHZ:
+			priv->bandwidth = BANDWIDTH_6_MHZ;
+			priv->video_standard = DTV6;
+			priv->freq_hz = params->frequency - 1750000;
+			break;
+		case BANDWIDTH_7_MHZ:
+			printk(KERN_ERR "xc5000 bandwidth 7MHz not supported\n");
+			return -EINVAL;
+		case BANDWIDTH_8_MHZ:
+			priv->bandwidth = BANDWIDTH_8_MHZ;
+			priv->video_standard = DTV8;
+			priv->freq_hz = params->frequency - 2750000;
+			break;
+		default:
+			printk(KERN_ERR "xc5000 bandwidth not set!\n");
+			return -EINVAL;
+		}
+		priv->rf_mode = XC_RF_MODE_AIR;
+	} else {
+		printk(KERN_ERR "xc5000 modulation type not supported!\n");
+		return -EINVAL;
+	}
 
 	dprintk(1, "%s() frequency=%d (compensated)\n",
 		__func__, priv->freq_hz);