[media] V4L: add a new videobuf2 buffer state VB2_BUF_STATE_PREPARED

This patch prepares for a better separation of the buffer preparation
stage.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index ea55c08eddfb..dbd10acc8e80 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -105,6 +105,7 @@ enum vb2_fileio_flags {
 /**
  * enum vb2_buffer_state - current video buffer state
  * @VB2_BUF_STATE_DEQUEUED:     buffer under userspace control
+ * @VB2_BUF_STATE_PREPARED:     buffer prepared in videobuf and by the driver
  * @VB2_BUF_STATE_QUEUED:       buffer queued in videobuf, but not in driver
  * @VB2_BUF_STATE_ACTIVE:       buffer queued in driver and possibly used
  *                              in a hardware operation
@@ -116,6 +117,7 @@ enum vb2_fileio_flags {
  */
 enum vb2_buffer_state {
         VB2_BUF_STATE_DEQUEUED,
+        VB2_BUF_STATE_PREPARED,
         VB2_BUF_STATE_QUEUED,
         VB2_BUF_STATE_ACTIVE,
         VB2_BUF_STATE_DONE,