[PATCH 27/29] vim2m: support requests

[Hans Verkuil]

From: Hans Verkuil <hans.verk...@cisco.com>

Add support for requests to vim2m.

Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
 drivers/media/platform/vim2m.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c
index 9b18b32c255d..2dcf0ea85705 100644
--- a/drivers/media/platform/vim2m.c
+++ b/drivers/media/platform/vim2m.c
@@ -387,8 +387,26 @@ static void device_run(void *priv)
        src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
        dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
 
+       /* Apply request if needed */
+       if (src_buf->vb2_buf.req_obj.req)
+               v4l2_ctrl_request_setup(src_buf->vb2_buf.req_obj.req,
+                                       &ctx->hdl);
+       if (dst_buf->vb2_buf.req_obj.req &&
+           dst_buf->vb2_buf.req_obj.req != src_buf->vb2_buf.req_obj.req)
+               v4l2_ctrl_request_setup(dst_buf->vb2_buf.req_obj.req,
+                                       &ctx->hdl);
+
        device_process(ctx, src_buf, dst_buf);
 
+       /* Complete request if needed */
+       if (src_buf->vb2_buf.req_obj.req)
+               v4l2_ctrl_request_complete(src_buf->vb2_buf.req_obj.req,
+                                       &ctx->hdl);
+       if (dst_buf->vb2_buf.req_obj.req &&
+           dst_buf->vb2_buf.req_obj.req != src_buf->vb2_buf.req_obj.req)
+               v4l2_ctrl_request_complete(dst_buf->vb2_buf.req_obj.req,
+                                       &ctx->hdl);
+
        /* Run a timer, which simulates a hardware irq  */
        schedule_irq(dev, ctx->transtime);
 }
@@ -823,6 +841,8 @@ static void vim2m_stop_streaming(struct vb2_queue *q)
                        vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
                if (vbuf == NULL)
                        return;
+               v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req,
+                                          &ctx->hdl);
                spin_lock_irqsave(&ctx->dev->irqlock, flags);
                v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
                spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
@@ -1003,6 +1023,10 @@ static const struct v4l2_m2m_ops m2m_ops = {
        .job_abort      = job_abort,
 };
 
+static const struct media_device_ops m2m_media_ops = {
+       .req_queue = vb2_request_queue,
+};
+
 static int vim2m_probe(struct platform_device *pdev)
 {
        struct vim2m_dev *dev;
@@ -1027,6 +1051,7 @@ static int vim2m_probe(struct platform_device *pdev)
        dev->mdev.dev = &pdev->dev;
        strlcpy(dev->mdev.model, "vim2m", sizeof(dev->mdev.model));
        media_device_init(&dev->mdev);
+       dev->mdev.ops = &m2m_media_ops;
        dev->v4l2_dev.mdev = &dev->mdev;
        dev->pad[0].flags = MEDIA_PAD_FL_SINK;
        dev->pad[1].flags = MEDIA_PAD_FL_SOURCE;
-- 
2.15.1