This patch enhances s5p-mfc with support for DMABUF exporting via
VIDIOC_EXPBUF ioctl.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
CC: Kamil Debski <k.debski@xxxxxxxxxxx>
---
drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 18 ++++++++++++++++++
drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 18 ++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c
index c5d567f..b375209 100644
--- a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c
+++ b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c
@@ -570,6 +570,23 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
return -EINVAL;
}
+/* Export DMA buffer */
+static int vidioc_expbuf(struct file *file, void *priv,
+ struct v4l2_exportbuffer *eb)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ int ret;
+
+ if (eb->mem_offset < DST_QUEUE_OFF_BASE)
+ return vb2_expbuf(&ctx->vq_src, eb);
+
+ eb->mem_offset -= DST_QUEUE_OFF_BASE;
+ ret = vb2_expbuf(&ctx->vq_dst, eb);
+ eb->mem_offset += DST_QUEUE_OFF_BASE;
+
+ return ret;
+}
+
/* Stream on */
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
@@ -745,6 +762,7 @@ static const struct v4l2_ioctl_ops s5p_mfc_dec_ioctl_ops = {
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_expbuf = vidioc_expbuf,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.vidioc_g_crop = vidioc_g_crop,
diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c
index aa1c244..df3da50 100644
--- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c
@@ -1142,6 +1142,23 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
return -EINVAL;
}
+/* Export DMA buffer */
+static int vidioc_expbuf(struct file *file, void *priv,
+ struct v4l2_exportbuffer *eb)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ int ret;
+
+ if (eb->mem_offset < DST_QUEUE_OFF_BASE)
+ return vb2_expbuf(&ctx->vq_src, eb);
+
+ eb->mem_offset -= DST_QUEUE_OFF_BASE;
+ ret = vb2_expbuf(&ctx->vq_dst, eb);
+ eb->mem_offset += DST_QUEUE_OFF_BASE;
+
+ return ret;
+}
+
/* Stream on */
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
@@ -1487,6 +1504,7 @@ static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops = {
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_expbuf = vidioc_expbuf,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.vidioc_s_parm = vidioc_s_parm,
--
1.7.9.5
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