From 1bc102264989e1835b7cb712a20692c8b22d3abd Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 3 Feb 2007 10:35:07 +0100 Subject: Fix CC handling in VIDIOC_INT_G_VBI_DATA From: Hans Verkuil 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 --- linux/drivers/media/video/saa7115.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'linux/drivers/media/video/saa7115.c') diff --git a/linux/drivers/media/video/saa7115.c b/linux/drivers/media/video/saa7115.c index 71e1cab45..6163a68e3 100644 --- a/linux/drivers/media/video/saa7115.c +++ b/linux/drivers/media/video/saa7115.c @@ -1399,6 +1399,9 @@ 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) @@ -1409,17 +1412,17 @@ 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; -- cgit v1.2.3