diff options
author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-06-05 11:28:50 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-06-09 17:25:35 -0300 |
commit | e68cf471e71d1e91c5661e1bb7595985158d59ae (patch) | |
tree | bb5a40c62af054e0771203ecd125c289dd118441 /drivers/media/v4l2-core/v4l2-mem2mem.c | |
parent | f00245c2e8cf18b37d26674c88915c5238c2815e (diff) | |
download | linux-e68cf471e71d1e91c5661e1bb7595985158d59ae.tar.bz2 |
[media] v4l2-mem2mem: add support for prepare_buf
This was never added for some reason, so add it now.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-mem2mem.c')
-rw-r--r-- | drivers/media/v4l2-core/v4l2-mem2mem.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index cbef15c07e53..dc853e57f91f 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -427,6 +427,25 @@ int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, EXPORT_SYMBOL_GPL(v4l2_m2m_dqbuf); /** + * v4l2_m2m_prepare_buf() - prepare a source or destination buffer, depending on + * the type + */ +int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, + struct v4l2_buffer *buf) +{ + struct vb2_queue *vq; + int ret; + + vq = v4l2_m2m_get_vq(m2m_ctx, buf->type); + ret = vb2_prepare_buf(vq, buf); + if (!ret) + v4l2_m2m_try_schedule(m2m_ctx); + + return ret; +} +EXPORT_SYMBOL_GPL(v4l2_m2m_prepare_buf); + +/** * v4l2_m2m_create_bufs() - create a source or destination buffer, depending * on the type */ @@ -811,6 +830,15 @@ int v4l2_m2m_ioctl_dqbuf(struct file *file, void *priv, } EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_dqbuf); +int v4l2_m2m_ioctl_prepare_buf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct v4l2_fh *fh = file->private_data; + + return v4l2_m2m_prepare_buf(file, fh->m2m_ctx, buf); +} +EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_prepare_buf); + int v4l2_m2m_ioctl_expbuf(struct file *file, void *priv, struct v4l2_exportbuffer *eb) { |