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V4L/DVB (5048): Pvrusb2: v4l2 API implementation frequency tweaks 

Report and set correctly converted frequency to/from a V4L2 app.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mike Isely 2006-12-27 23:25:06 -03:00 committed by Mauro Carvalho Chehab
parent f1382122ab
commit c0e69315ed
1 changed files with 22 additions and 4 deletions
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22
drivers/media/video/pvrusb2/pvrusb2-v4l2.c
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@ -388,9 +388,15 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
case VIDIOC_S_FREQUENCY:
{
const struct v4l2_frequency *vf = (struct v4l2_frequency *)arg;
unsigned long fv;
fv = vf->frequency;
if (vf->type == V4L2_TUNER_RADIO) {
fv = (fv * 125) / 2;
} else {
fv = fv * 62500;
}
ret = pvr2_ctrl_set_value(
pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),
vf->frequency * 62500);
pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),fv);
break;
}
@ -398,11 +404,23 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
{
struct v4l2_frequency *vf = (struct v4l2_frequency *)arg;
int val = 0;
int cur_input = PVR2_CVAL_INPUT_TV;
ret = pvr2_ctrl_get_value(
pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_FREQUENCY),
&val);
if (ret != 0) break;
pvr2_ctrl_get_value(
pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT),
&cur_input);
if (cur_input == PVR2_CVAL_INPUT_RADIO) {
val = (val * 2) / 125;
vf->frequency = val;
vf->type = V4L2_TUNER_RADIO;
} else {
val /= 62500;
vf->frequency = val;
vf->type = V4L2_TUNER_ANALOG_TV;
}
break;
}