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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2011-09-28 14:25:28 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-11-03 21:28:41 +0100
commit7ae77ee92fea7c115324096372a2a125d8bc26d7 (patch)
tree26fcb2f4c92ab3b16791a1d695a0bb7016d6d601 /drivers/media/video/soc_camera.c
parent[media] V4L: mx3-camera: prepare to support multi-size buffers (diff)
downloadlinux-7ae77ee92fea7c115324096372a2a125d8bc26d7.tar.xz
linux-7ae77ee92fea7c115324096372a2a125d8bc26d7.zip
[media] V4L: soc-camera: add 2 new ioctl() handlers
This patch adds two new ioctl() handlers: .vidioc_create_bufs() and .vidioc_prepare_buf() for compliant vb2 soc-camera hosts. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/soc_camera.c')
-rw-r--r--drivers/media/video/soc_camera.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index b56f4b78273d..8d5c421a803c 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -318,6 +318,32 @@ static int soc_camera_dqbuf(struct file *file, void *priv,
return vb2_dqbuf(&icd->vb2_vidq, p, file->f_flags & O_NONBLOCK);
}
+static int soc_camera_create_bufs(struct file *file, void *priv,
+ struct v4l2_create_buffers *create)
+{
+ struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+
+ /* videobuf2 only */
+ if (ici->ops->init_videobuf)
+ return -EINVAL;
+ else
+ return vb2_create_bufs(&icd->vb2_vidq, create);
+}
+
+static int soc_camera_prepare_buf(struct file *file, void *priv,
+ struct v4l2_buffer *b)
+{
+ struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+
+ /* videobuf2 only */
+ if (ici->ops->init_videobuf)
+ return -EINVAL;
+ else
+ return vb2_prepare_buf(&icd->vb2_vidq, b);
+}
+
/* Always entered with .video_lock held */
static int soc_camera_init_user_formats(struct soc_camera_device *icd)
{
@@ -1041,6 +1067,7 @@ static int soc_camera_probe(struct soc_camera_device *icd)
if (!control || !control->driver || !dev_get_drvdata(control) ||
!try_module_get(control->driver->owner)) {
icl->del_device(icd);
+ ret = -ENODEV;
goto enodrv;
}
}
@@ -1312,19 +1339,21 @@ static int soc_camera_device_register(struct soc_camera_device *icd)
static const struct v4l2_ioctl_ops soc_camera_ioctl_ops = {
.vidioc_querycap = soc_camera_querycap,
+ .vidioc_try_fmt_vid_cap = soc_camera_try_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = soc_camera_g_fmt_vid_cap,
- .vidioc_enum_fmt_vid_cap = soc_camera_enum_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = soc_camera_s_fmt_vid_cap,
+ .vidioc_enum_fmt_vid_cap = soc_camera_enum_fmt_vid_cap,
.vidioc_enum_input = soc_camera_enum_input,
.vidioc_g_input = soc_camera_g_input,
.vidioc_s_input = soc_camera_s_input,
.vidioc_s_std = soc_camera_s_std,
.vidioc_enum_framesizes = soc_camera_enum_fsizes,
.vidioc_reqbufs = soc_camera_reqbufs,
- .vidioc_try_fmt_vid_cap = soc_camera_try_fmt_vid_cap,
.vidioc_querybuf = soc_camera_querybuf,
.vidioc_qbuf = soc_camera_qbuf,
.vidioc_dqbuf = soc_camera_dqbuf,
+ .vidioc_create_bufs = soc_camera_create_bufs,
+ .vidioc_prepare_buf = soc_camera_prepare_buf,
.vidioc_streamon = soc_camera_streamon,
.vidioc_streamoff = soc_camera_streamoff,
.vidioc_cropcap = soc_camera_cropcap,