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V4L/DVB: saa6752hs: add g/s_mbus_fmt support 

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 09:39:58 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель 3a21ceed7f
Коммит 51623ef9ae
1 изменённых файлов: 46 добавлений и 18 удалений
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64
drivers/media/video/saa7134/saa6752hs.c
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@ -846,24 +846,38 @@ static int saa6752hs_g_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_control
return 0;
}
static int saa6752hs_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
static int saa6752hs_g_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
{
struct saa6752hs_state *h = to_state(sd);
if (h->video_format == SAA6752HS_VF_UNKNOWN)
h->video_format = SAA6752HS_VF_D1;
f->fmt.pix.width =
v4l2_format_table[h->video_format].fmt.pix.width;
f->fmt.pix.height =
v4l2_format_table[h->video_format].fmt.pix.height;
f->width = v4l2_format_table[h->video_format].fmt.pix.width;
f->height = v4l2_format_table[h->video_format].fmt.pix.height;
f->code = V4L2_MBUS_FMT_FIXED;
f->field = V4L2_FIELD_INTERLACED;
f->colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int saa6752hs_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
static int saa6752hs_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
struct v4l2_mbus_framefmt mbus_fmt;
int err = saa6752hs_g_mbus_fmt(sd, &mbus_fmt);
f->fmt.pix.width = mbus_fmt.width;
f->fmt.pix.height = mbus_fmt.height;
return err;
}
static int saa6752hs_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
{
struct saa6752hs_state *h = to_state(sd);
int dist_352, dist_480, dist_720;
if (f->code != V4L2_MBUS_FMT_FIXED)
return -EINVAL;
/*
FIXME: translate and round width/height into EMPRESS
subsample type:
@ -876,31 +890,43 @@ static int saa6752hs_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
D1 | 720x576 | 720x480
*/
dist_352 = abs(f->fmt.pix.width - 352);
dist_480 = abs(f->fmt.pix.width - 480);
dist_720 = abs(f->fmt.pix.width - 720);
dist_352 = abs(f->width - 352);
dist_480 = abs(f->width - 480);
dist_720 = abs(f->width - 720);
if (dist_720 < dist_480) {
f->fmt.pix.width = 720;
f->fmt.pix.height = 576;
f->width = 720;
f->height = 576;
h->video_format = SAA6752HS_VF_D1;
} else if (dist_480 < dist_352) {
f->fmt.pix.width = 480;
f->fmt.pix.height = 576;
f->width = 480;
f->height = 576;
h->video_format = SAA6752HS_VF_2_3_D1;
} else {
f->fmt.pix.width = 352;
if (abs(f->fmt.pix.height - 576) <
abs(f->fmt.pix.height - 288)) {
f->fmt.pix.height = 576;
f->width = 352;
if (abs(f->height - 576) <
abs(f->height - 288)) {
f->height = 576;
h->video_format = SAA6752HS_VF_1_2_D1;
} else {
f->fmt.pix.height = 288;
f->height = 288;
h->video_format = SAA6752HS_VF_SIF;
}
}
f->field = V4L2_FIELD_INTERLACED;
f->colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int saa6752hs_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
{
struct v4l2_mbus_framefmt mbus_fmt;
mbus_fmt.width = f->fmt.pix.width;
mbus_fmt.height = f->fmt.pix.height;
mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
return saa6752hs_s_mbus_fmt(sd, &mbus_fmt);
}
static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct saa6752hs_state *h = to_state(sd);
@ -934,6 +960,8 @@ static const struct v4l2_subdev_core_ops saa6752hs_core_ops = {
static const struct v4l2_subdev_video_ops saa6752hs_video_ops = {
.s_fmt = saa6752hs_s_fmt,
.g_fmt = saa6752hs_g_fmt,
.s_mbus_fmt = saa6752hs_s_mbus_fmt,
.g_mbus_fmt = saa6752hs_g_mbus_fmt,
};
static const struct v4l2_subdev_ops saa6752hs_ops = {