korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-16 23:45:31 +08:00
Code Issues Packages Projects Releases Wiki Activity

[media] xc5000,tda18271c2dd: Fix bandwidth calculus

Browse Source 
While here, add a debug message, to easy detecting bugs on it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-12-08 12:58:22 -02:00
parent 2bf936290b
commit 78bd3dc8da
2 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/media/common/tuners/xc5000.c
View File

@ -708,9 +708,9 @@ static int xc5000_set_params(struct dvb_frontend *fe,
* is equal to 0.15 for Annex A, and 0.13 for annex C * is equal to 0.15 for Annex A, and 0.13 for annex C
*/ */
if (fe->dtv_property_cache.rolloff == ROLLOFF_13) if (fe->dtv_property_cache.rolloff == ROLLOFF_13)
bw = (params->u.qam.symbol_rate * 13) / 10; bw = (params->u.qam.symbol_rate * 113) / 100;
else else
bw = (params->u.qam.symbol_rate * 15) / 10; bw = (params->u.qam.symbol_rate * 115) / 100;
if (bw <= 6000000) { if (bw <= 6000000) {
priv->bandwidth = BANDWIDTH_6_MHZ; priv->bandwidth = BANDWIDTH_6_MHZ;
priv->video_standard = DTV6; priv->video_standard = DTV6;
@ -720,6 +720,8 @@ static int xc5000_set_params(struct dvb_frontend *fe,
priv->video_standard = DTV7_8; priv->video_standard = DTV7_8;
priv->freq_hz = params->frequency - 2750000; priv->freq_hz = params->frequency - 2750000;
} }
dprintk(1, "%s() Bandwidth %dMHz (%d)\n", __func__,
BANDWIDTH_6_MHZ ? 6: 8, bw);
break; break;
default: default:
dprintk(1, "%s() Unsupported QAM type\n", __func__); dprintk(1, "%s() Unsupported QAM type\n", __func__);

4
drivers/media/dvb/frontends/tda18271c2dd.c
View File

@ -1158,9 +1158,9 @@ static int set_params(struct dvb_frontend *fe,
* is equal to 0.15 for Annex A, and 0.13 for annex C * is equal to 0.15 for Annex A, and 0.13 for annex C
*/ */
if (fe->dtv_property_cache.rolloff == ROLLOFF_13) if (fe->dtv_property_cache.rolloff == ROLLOFF_13)
bw = (params->u.qam.symbol_rate * 13) / 10; bw = (params->u.qam.symbol_rate * 113) / 100;
else else
bw = (params->u.qam.symbol_rate * 15) / 10; bw = (params->u.qam.symbol_rate * 115) / 100;
if (bw <= 6000000) if (bw <= 6000000)
Standard = HF_DVBC_6MHZ; Standard = HF_DVBC_6MHZ;
else if (bw <= 7000000) else if (bw <= 7000000)