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[media] exynos-gsc: Support dmabuf export buffer

Message ID 1354883335-27961-1-git-send-email-shaik.ameer@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Shaik Ameer Basha Dec. 7, 2012, 12:28 p.m. UTC 
This patch adds the dmabuf export buffer feature to the
Exynos G-Scaler driver.

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
---
 drivers/media/platform/exynos-gsc/gsc-m2m.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index c267c57..d0c3e42 100644
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -367,6 +367,13 @@  static int gsc_m2m_reqbufs(struct file *file, void *fh,
 	return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
 }
 
+static int gsc_m2m_expbuf(struct file *file, void *fh,
+				struct v4l2_exportbuffer *eb)
+{
+	struct gsc_ctx *ctx = fh_to_ctx(fh);
+	return v4l2_m2m_expbuf(file, ctx->m2m_ctx, eb);
+}
+
 static int gsc_m2m_querybuf(struct file *file, void *fh,
 					struct v4l2_buffer *buf)
 {
@@ -548,6 +555,7 @@  static const struct v4l2_ioctl_ops gsc_m2m_ioctl_ops = {
 	.vidioc_s_fmt_vid_cap_mplane	= gsc_m2m_s_fmt_mplane,
 	.vidioc_s_fmt_vid_out_mplane	= gsc_m2m_s_fmt_mplane,
 	.vidioc_reqbufs			= gsc_m2m_reqbufs,
+	.vidioc_expbuf                  = gsc_m2m_expbuf,
 	.vidioc_querybuf		= gsc_m2m_querybuf,
 	.vidioc_qbuf			= gsc_m2m_qbuf,
 	.vidioc_dqbuf			= gsc_m2m_dqbuf,
@@ -565,7 +573,7 @@  static int queue_init(void *priv, struct vb2_queue *src_vq,
 
 	memset(src_vq, 0, sizeof(*src_vq));
 	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
-	src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+	src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
 	src_vq->drv_priv = ctx;
 	src_vq->ops = &gsc_m2m_qops;
 	src_vq->mem_ops = &vb2_dma_contig_memops;
@@ -577,7 +585,7 @@  static int queue_init(void *priv, struct vb2_queue *src_vq,
 
 	memset(dst_vq, 0, sizeof(*dst_vq));
 	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
-	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
 	dst_vq->drv_priv = ctx;
 	dst_vq->ops = &gsc_m2m_qops;
 	dst_vq->mem_ops = &vb2_dma_contig_memops;