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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>
This commit is contained in:
David T.L. Wong 2009-05-04 22:59:58 -03:00 committed by Mauro Carvalho Chehab
parent a6301d1d57
commit 6c99080d8e
1 changed files with 45 additions and 18 deletions
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63
drivers/media/common/tuners/xc5000.c
View File

@ -636,25 +636,52 @@ static int xc5000_set_params(struct dvb_frontend *fe,
dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
switch (params->u.vsb.modulation) {
case VSB_8:
case VSB_16:
dprintk(1, "%s() VSB modulation\n", __func__);
if (fe->ops.info.type == FE_ATSC) {
dprintk(1, "%s() ATSC\n", __func__);
switch (params->u.vsb.modulation) {
case VSB_8:
case VSB_16:
dprintk(1, "%s() VSB modulation\n", __func__);
priv->rf_mode = XC_RF_MODE_AIR;
priv->freq_hz = params->frequency - 1750000;
priv->bandwidth = BANDWIDTH_6_MHZ;
priv->video_standard = DTV6;
break;
case QAM_64:
case QAM_256:
case QAM_AUTO:
dprintk(1, "%s() QAM modulation\n", __func__);
priv->rf_mode = XC_RF_MODE_CABLE;
priv->freq_hz = params->frequency - 1750000;
priv->bandwidth = BANDWIDTH_6_MHZ;
priv->video_standard = DTV6;
break;
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;
priv->freq_hz = params->frequency - 1750000;
priv->bandwidth = BANDWIDTH_6_MHZ;
priv->video_standard = DTV6;
break;
case QAM_64:
case QAM_256:
case QAM_AUTO:
dprintk(1, "%s() QAM modulation\n", __func__);
priv->rf_mode = XC_RF_MODE_CABLE;
priv->freq_hz = params->frequency - 1750000;
priv->bandwidth = BANDWIDTH_6_MHZ;
priv->video_standard = DTV6;
break;
default:
} else {
printk(KERN_ERR "xc5000 modulation type not supported!\n");
return -EINVAL;
}