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[media] media: tvp5150: Add mbus_fmt callbacks 

These callbacks allow a host video driver
to poll video formats supported by tvp5150.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Javier Martin 2012-01-05 10:57:39 -03:00 committed by Mauro Carvalho Chehab
parent e99663417f
commit ec2c4f3f93
1 changed files with 67 additions and 0 deletions
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67
drivers/media/video/tvp5150.c
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@ -779,6 +779,70 @@ static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
return -EINVAL; return -EINVAL;
} }
static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
{
int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
switch (val & 0x0F) {
case 0x01:
return V4L2_STD_NTSC;
case 0x03:
return V4L2_STD_PAL;
case 0x05:
return V4L2_STD_PAL_M;
case 0x07:
return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
case 0x09:
return V4L2_STD_NTSC_443;
case 0xb:
return V4L2_STD_SECAM;
default:
return V4L2_STD_UNKNOWN;
}
}
static int tvp5150_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
enum v4l2_mbus_pixelcode *code)
{
if (index)
return -EINVAL;
*code = V4L2_MBUS_FMT_YUYV8_2X8;
return 0;
}
static int tvp5150_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *f)
{
struct tvp5150 *decoder = to_tvp5150(sd);
v4l2_std_id std;
if (f == NULL)
return -EINVAL;
tvp5150_reset(sd, 0);
/* Calculate height and width based on current standard */
if (decoder->norm == V4L2_STD_ALL)
std = tvp5150_read_std(sd);
else
std = decoder->norm;
f->width = 720;
if (std & V4L2_STD_525_60)
f->height = 480;
else
f->height = 576;
f->code = V4L2_MBUS_FMT_YUYV8_2X8;
f->field = V4L2_FIELD_SEQ_TB;
f->colorspace = V4L2_COLORSPACE_SMPTE170M;
v4l2_dbg(1, debug, sd, "width = %d, height = %d\n", f->width,
f->height);
return 0;
}
/**************************************************************************** /****************************************************************************
I2C Command I2C Command
****************************************************************************/ ****************************************************************************/
@ -931,6 +995,9 @@ static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
static const struct v4l2_subdev_video_ops tvp5150_video_ops = { static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
.s_routing = tvp5150_s_routing, .s_routing = tvp5150_s_routing,
.enum_mbus_fmt = tvp5150_enum_mbus_fmt,
.s_mbus_fmt = tvp5150_mbus_fmt,
.try_mbus_fmt = tvp5150_mbus_fmt,
}; };
static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = { static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {