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V4L/DVB: tvp7002: add support for enum/try/g/s_mbus_fmt 

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2010-05-09 07:07:35 -03:00 committed by Mauro Carvalho Chehab
parent 838119138e
commit db7b546040
1 changed files with 54 additions and 0 deletions
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54
drivers/media/video/tvp7002.c
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@ -694,6 +694,37 @@ static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
}
}
/*
* tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt
* @sd: pointer to standard V4L2 sub-device structure
* @f: pointer to mediabus format structure
*
* Negotiate the image capture size and mediabus format.
* There is only one possible format, so this single function works for
* get, set and try.
*/
static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
{
struct tvp7002 *device = to_tvp7002(sd);
struct v4l2_dv_enum_preset e_preset;
int error;
/* Calculate height and width based on current standard */
error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset);
if (error)
return error;
f->width = e_preset.width;
f->height = e_preset.height;
f->code = V4L2_MBUS_FMT_YUYV10_1X20;
f->field = device->current_preset->scanmode;
f->colorspace = device->current_preset->color_space;
v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d",
f->width, f->height);
return 0;
}
/*
* tvp7002_try_fmt_cap() - V4L2 decoder interface handler for try_fmt
* @sd: pointer to standard V4L2 sub-device structure
@ -912,6 +943,25 @@ static int tvp7002_enum_fmt(struct v4l2_subdev *sd,
return 0;
}
/*
* tvp7002_enum_mbus_fmt() - Enum supported mediabus formats
* @sd: pointer to standard V4L2 sub-device structure
* @index: format index
* @code: pointer to mediabus format
*
* Enumerate supported mediabus formats.
*/
static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
enum v4l2_mbus_pixelcode *code)
{
/* Check requested format index is within range */
if (index)
return -EINVAL;
*code = V4L2_MBUS_FMT_YUYV10_1X20;
return 0;
}
/*
* tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream
* @sd: pointer to standard V4L2 sub-device structure
@ -1030,6 +1080,10 @@ static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
.g_fmt = tvp7002_g_fmt,
.s_fmt = tvp7002_s_fmt,
.enum_fmt = tvp7002_enum_fmt,
.g_mbus_fmt = tvp7002_mbus_fmt,
.try_mbus_fmt = tvp7002_mbus_fmt,
.s_mbus_fmt = tvp7002_mbus_fmt,
.enum_mbus_fmt = tvp7002_enum_mbus_fmt,
};
/* V4L2 top level operation handlers */