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[media] s5p-fimc: Add media operations in the capture entity driver

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Add the link_setup handler for the camera capture video node.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2011-08-24 19:28:18 -03:00 committed by Mauro Carvalho Chehab
parent 131b6c6197
commit d09a7dc887
2 changed files with 34 additions and 0 deletions
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32
drivers/media/video/s5p-fimc/fimc-capture.c
View file

@ -669,6 +669,37 @@ static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
.vidioc_g_input = fimc_cap_g_input,
};
/* Media operations */
static int fimc_link_setup(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags)
{
struct video_device *vd = media_entity_to_video_device(entity);
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(remote->entity);
struct fimc_dev *fimc = video_get_drvdata(vd);
if (WARN_ON(fimc == NULL))
return 0;
dbg("%s --> %s, flags: 0x%x. input: 0x%x",
local->entity->name, remote->entity->name, flags,
fimc->vid_cap.input);
if (flags & MEDIA_LNK_FL_ENABLED) {
if (fimc->vid_cap.input != 0)
return -EBUSY;
fimc->vid_cap.input = sd->grp_id;
return 0;
}
fimc->vid_cap.input = 0;
return 0;
}
static const struct media_entity_operations fimc_media_ops = {
.link_setup = fimc_link_setup,
};
/* fimc->lock must be already initialized */
int fimc_register_capture_device(struct fimc_dev *fimc,
struct v4l2_device *v4l2_dev)
@ -743,6 +774,7 @@ int fimc_register_capture_device(struct fimc_dev *fimc,
if (ret)
goto err_ent;
vfd->entity.ops = &fimc_media_ops;
vfd->ctrl_handler = &ctx->ctrl_handler;
return 0;

2
drivers/media/video/s5p-fimc/fimc-core.h
View file

@ -305,6 +305,7 @@ struct fimc_m2m_device {
* @reqbufs_count: the number of buffers requested in REQBUFS ioctl
* @input_index: input (camera sensor) index
* @refcnt: driver's private reference counter
* @input: capture input type, grp_id of the attached subdev
* @user_subdev_api: true if subdevs are not configured by the host driver
*/
struct fimc_vid_cap {
@ -323,6 +324,7 @@ struct fimc_vid_cap {
unsigned int reqbufs_count;
int input_index;
int refcnt;
u32 input;
bool user_subdev_api;
};