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V4L/DVB: tvp514x: there is only one supported format, so simplify the code

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Get rid of unnecessary code since this driver supports only one
pixel format. Removing this code will make the transition to the
mbus API easier as well.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2010-05-09 06:37:14 -03:00 committed by Mauro Carvalho Chehab
parent a75ffc1246
commit c2fc80961f
1 changed files with 9 additions and 36 deletions
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45
drivers/media/video/tvp514x.c
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@ -89,8 +89,6 @@ static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable);
* @ver: Chip version
* @streaming: TVP5146/47 decoder streaming - enabled or disabled.
* @pix: Current pixel format
* @num_fmts: Number of formats
* @fmt_list: Format list
* @current_std: Current standard
* @num_stds: Number of standards
* @std_list: Standards list
@ -106,8 +104,6 @@ struct tvp514x_decoder {
int streaming;
struct v4l2_pix_format pix;
int num_fmts;
const struct v4l2_fmtdesc *fmt_list;
enum tvp514x_std current_std;
int num_stds;
@ -960,27 +956,18 @@ tvp514x_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
static int
tvp514x_enum_fmt_cap(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmt)
{
struct tvp514x_decoder *decoder = to_decoder(sd);
int index;
if (fmt == NULL)
return -EINVAL;
index = fmt->index;
if ((index >= decoder->num_fmts) || (index < 0))
/* Index out of bound */
if (fmt == NULL || fmt->index)
return -EINVAL;
if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
/* only capture is supported */
return -EINVAL;
memcpy(fmt, &decoder->fmt_list[index],
sizeof(struct v4l2_fmtdesc));
v4l2_dbg(1, debug, sd, "Current FMT: index - %d (%s)",
decoder->fmt_list[index].index,
decoder->fmt_list[index].description);
/* only one format */
fmt->flags = 0;
strlcpy(fmt->description, "8-bit UYVY 4:2:2 Format",
sizeof(fmt->description));
fmt->pixelformat = V4L2_PIX_FMT_UYVY;
return 0;
}
@ -997,7 +984,6 @@ static int
tvp514x_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f)
{
struct tvp514x_decoder *decoder = to_decoder(sd);
int ifmt;
struct v4l2_pix_format *pix;
enum tvp514x_std current_std;
@ -1013,28 +999,18 @@ tvp514x_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f)
/* Calculate height and width based on current standard */
current_std = decoder->current_std;
pix->pixelformat = V4L2_PIX_FMT_UYVY;
pix->width = decoder->std_list[current_std].width;
pix->height = decoder->std_list[current_std].height;
for (ifmt = 0; ifmt < decoder->num_fmts; ifmt++) {
if (pix->pixelformat ==
decoder->fmt_list[ifmt].pixelformat)
break;
}
if (ifmt == decoder->num_fmts)
/* None of the format matched, select default */
ifmt = 0;
pix->pixelformat = decoder->fmt_list[ifmt].pixelformat;
pix->field = V4L2_FIELD_INTERLACED;
pix->bytesperline = pix->width * 2;
pix->sizeimage = pix->bytesperline * pix->height;
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
pix->priv = 0;
v4l2_dbg(1, debug, sd, "Try FMT: pixelformat - %s, bytesperline - %d"
v4l2_dbg(1, debug, sd, "Try FMT: bytesperline - %d"
"Width - %d, Height - %d",
decoder->fmt_list[ifmt].description, pix->bytesperline,
pix->bytesperline,
pix->width, pix->height);
return 0;
}
@ -1254,9 +1230,6 @@ static const struct v4l2_subdev_ops tvp514x_ops = {
static struct tvp514x_decoder tvp514x_dev = {
.streaming = 0,
.fmt_list = tvp514x_fmt_list,
.num_fmts = ARRAY_SIZE(tvp514x_fmt_list),
.pix = {
/* Default to NTSC 8-bit YUV 422 */
.width = NTSC_NUM_ACTIVE_PIXELS,