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V4L/DVB (5183): Fix CC handling in VIDIOC_INT_G_VBI_DATA 

When capturing a 60 Hz input the internal field ID is inverted. The
VIDIOC_INT_G_VBI_DATA didn't take that into account and so returned
XDS instead of CC and vice versa.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-02-03 06:35:07 -03:00 committed by Mauro Carvalho Chehab
parent 2675f7a88f
commit faeb4ab38f
1 changed files with 9 additions and 6 deletions
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15
drivers/media/video/saa7115.c
View File

@ -1388,6 +1388,9 @@ static int saa711x_command(struct i2c_client *client, unsigned int cmd, void *ar
{
struct v4l2_sliced_vbi_data *data = arg;
/* Note: the internal field ID is inverted for NTSC,
so data->field 0 maps to the saa7115 even field,
whereas for PAL it maps to the saa7115 odd field. */
switch (data->id) {
case V4L2_SLICED_WSS_625:
if (saa711x_read(client, 0x6b) & 0xc0)
@ -1398,17 +1401,17 @@ static int saa711x_command(struct i2c_client *client, unsigned int cmd, void *ar
case V4L2_SLICED_CAPTION_525:
if (data->field == 0) {
/* CC */
if (saa711x_read(client, 0x66) & 0xc0)
if (saa711x_read(client, 0x66) & 0x30)
return -EIO;
data->data[0] = saa711x_read(client, 0x67);
data->data[1] = saa711x_read(client, 0x68);
data->data[0] = saa711x_read(client, 0x69);
data->data[1] = saa711x_read(client, 0x6a);
return 0;
}
/* XDS */
if (saa711x_read(client, 0x66) & 0x30)
if (saa711x_read(client, 0x66) & 0xc0)
return -EIO;
data->data[0] = saa711x_read(client, 0x69);
data->data[1] = saa711x_read(client, 0x6a);
data->data[0] = saa711x_read(client, 0x67);
data->data[1] = saa711x_read(client, 0x68);
return 0;
default:
return -EINVAL;