[media] v4l2-subdev: replace v4l2_subdev_fh by v4l2_subdev_pad_config
If a subdevice pad op is called from a bridge driver, then there is
no v4l2_subdev_fh struct that can be passed to the subdevice. This
made it hard to use such subdevs from a bridge driver.
This patch replaces the v4l2_subdev_fh pointer by a v4l2_subdev_pad_config
pointer in the pad ops. This allows bridge drivers to use the various
try_ pad ops by creating a v4l2_subdev_pad_config struct and passing it
along to the pad op.
The v4l2_subdev_get_try_* macros had to be changed because of this, so
I also took the opportunity to use the full name of the v4l2_subdev_get_try_*
functions in the __V4L2_SUBDEV_MK_GET_TRY macro arguments: if you now do
'git grep v4l2_subdev_get_try_format' you will actually find the header
where it is defined.
One remark regarding the drivers/staging/media/davinci_vpfe patches: the
*_init_formats() functions assumed that fh could be NULL. However, that's
not true for this driver, it's always set. This is almost certainly a copy
and paste from the omap3isp driver. I've updated the code to reflect the
fact that fh is never NULL.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/platform/vsp1/vsp1_rwpf.c b/drivers/media/platform/vsp1/vsp1_rwpf.c
index 1f1ba26..a083d85 100644
--- a/drivers/media/platform/vsp1/vsp1_rwpf.c
+++ b/drivers/media/platform/vsp1/vsp1_rwpf.c
@@ -25,7 +25,7 @@
*/
int vsp1_rwpf_enum_mbus_code(struct v4l2_subdev *subdev,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
static const unsigned int codes[] = {
@@ -42,13 +42,13 @@
}
int vsp1_rwpf_enum_frame_size(struct v4l2_subdev *subdev,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
struct v4l2_mbus_framefmt *format;
- format = v4l2_subdev_get_try_format(fh, fse->pad);
+ format = v4l2_subdev_get_try_format(subdev, cfg, fse->pad);
if (fse->index || fse->code != format->code)
return -EINVAL;
@@ -72,11 +72,11 @@
}
static struct v4l2_rect *
-vsp1_rwpf_get_crop(struct vsp1_rwpf *rwpf, struct v4l2_subdev_fh *fh, u32 which)
+vsp1_rwpf_get_crop(struct vsp1_rwpf *rwpf, struct v4l2_subdev_pad_config *cfg, u32 which)
{
switch (which) {
case V4L2_SUBDEV_FORMAT_TRY:
- return v4l2_subdev_get_try_crop(fh, RWPF_PAD_SINK);
+ return v4l2_subdev_get_try_crop(&rwpf->entity.subdev, cfg, RWPF_PAD_SINK);
case V4L2_SUBDEV_FORMAT_ACTIVE:
return &rwpf->crop;
default:
@@ -84,18 +84,18 @@
}
}
-int vsp1_rwpf_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
+int vsp1_rwpf_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
- fmt->format = *vsp1_entity_get_pad_format(&rwpf->entity, fh, fmt->pad,
+ fmt->format = *vsp1_entity_get_pad_format(&rwpf->entity, cfg, fmt->pad,
fmt->which);
return 0;
}
-int vsp1_rwpf_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
+int vsp1_rwpf_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
@@ -107,7 +107,7 @@
fmt->format.code != MEDIA_BUS_FMT_AYUV8_1X32)
fmt->format.code = MEDIA_BUS_FMT_AYUV8_1X32;
- format = vsp1_entity_get_pad_format(&rwpf->entity, fh, fmt->pad,
+ format = vsp1_entity_get_pad_format(&rwpf->entity, cfg, fmt->pad,
fmt->which);
if (fmt->pad == RWPF_PAD_SOURCE) {
@@ -130,14 +130,14 @@
fmt->format = *format;
/* Update the sink crop rectangle. */
- crop = vsp1_rwpf_get_crop(rwpf, fh, fmt->which);
+ crop = vsp1_rwpf_get_crop(rwpf, cfg, fmt->which);
crop->left = 0;
crop->top = 0;
crop->width = fmt->format.width;
crop->height = fmt->format.height;
/* Propagate the format to the source pad. */
- format = vsp1_entity_get_pad_format(&rwpf->entity, fh, RWPF_PAD_SOURCE,
+ format = vsp1_entity_get_pad_format(&rwpf->entity, cfg, RWPF_PAD_SOURCE,
fmt->which);
*format = fmt->format;
@@ -145,7 +145,7 @@
}
int vsp1_rwpf_get_selection(struct v4l2_subdev *subdev,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
@@ -157,11 +157,11 @@
switch (sel->target) {
case V4L2_SEL_TGT_CROP:
- sel->r = *vsp1_rwpf_get_crop(rwpf, fh, sel->which);
+ sel->r = *vsp1_rwpf_get_crop(rwpf, cfg, sel->which);
break;
case V4L2_SEL_TGT_CROP_BOUNDS:
- format = vsp1_entity_get_pad_format(&rwpf->entity, fh,
+ format = vsp1_entity_get_pad_format(&rwpf->entity, cfg,
RWPF_PAD_SINK, sel->which);
sel->r.left = 0;
sel->r.top = 0;
@@ -177,7 +177,7 @@
}
int vsp1_rwpf_set_selection(struct v4l2_subdev *subdev,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_selection *sel)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
@@ -194,7 +194,7 @@
/* Make sure the crop rectangle is entirely contained in the image. The
* WPF top and left offsets are limited to 255.
*/
- format = vsp1_entity_get_pad_format(&rwpf->entity, fh, RWPF_PAD_SINK,
+ format = vsp1_entity_get_pad_format(&rwpf->entity, cfg, RWPF_PAD_SINK,
sel->which);
sel->r.left = min_t(unsigned int, sel->r.left, format->width - 2);
sel->r.top = min_t(unsigned int, sel->r.top, format->height - 2);
@@ -207,11 +207,11 @@
sel->r.height = min_t(unsigned int, sel->r.height,
format->height - sel->r.top);
- crop = vsp1_rwpf_get_crop(rwpf, fh, sel->which);
+ crop = vsp1_rwpf_get_crop(rwpf, cfg, sel->which);
*crop = sel->r;
/* Propagate the format to the source pad. */
- format = vsp1_entity_get_pad_format(&rwpf->entity, fh, RWPF_PAD_SOURCE,
+ format = vsp1_entity_get_pad_format(&rwpf->entity, cfg, RWPF_PAD_SOURCE,
sel->which);
format->width = crop->width;
format->height = crop->height;