linux-kernel - [PATCH 2/5] media: vicodec: add support for manual completion

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Message-Id: <20250314-sebastianfricke-vcodec_manual_request_completion_with_state_machine-v1-2-5e277a3d695b@collabora.com>
Date: Fri, 14 Mar 2025 14:26:27 +0100
From: Sebastian Fricke <sebastian.fricke@...labora.com>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...all.nl>, Tiffany Lin <tiffany.lin@...iatek.com>, 
 Andrew-CT Chen <andrew-ct.chen@...iatek.com>, 
 Yunfei Dong <yunfei.dong@...iatek.com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 kernel@...labora.com, Sebastian Fricke <sebastian.fricke@...labora.com>, 
 Hans Verkuil <hverkuil@...all.nl>
Subject: [PATCH 2/5] media: vicodec: add support for manual completion

From: Hans Verkuil <hverkuil@...all.nl>

Manually complete the requests: this tests the manual completion
code.

Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
---
 drivers/media/test-drivers/vicodec/vicodec-core.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index c45f5cf12ded3c8b57483b148bf7bbffb8a458c5..88cb6e6a713f08bd4f412ca2940b1309bb87513b 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -448,8 +448,10 @@ static void device_run(void *priv)
 	ctx->comp_magic_cnt = 0;
 	ctx->comp_has_frame = false;
 	spin_unlock(ctx->lock);
-	if (ctx->is_stateless && src_req)
+	if (ctx->is_stateless && src_req) {
 		v4l2_ctrl_request_complete(src_req, &ctx->hdl);
+		media_request_manual_complete(src_req);
+	}
 
 	if (ctx->is_enc)
 		v4l2_m2m_job_finish(dev->stateful_enc.m2m_dev, ctx->fh.m2m_ctx);
@@ -1525,8 +1527,12 @@ static void vicodec_return_bufs(struct vb2_queue *q, u32 state)
 			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);
+		if (ctx->is_stateless && V4L2_TYPE_IS_OUTPUT(q->type)) {
+			struct media_request *req = vbuf->vb2_buf.req_obj.req;
+
+			v4l2_ctrl_request_complete(req, &ctx->hdl);
+			media_request_manual_complete(req);
+		}
 		spin_lock(ctx->lock);
 		v4l2_m2m_buf_done(vbuf, state);
 		spin_unlock(ctx->lock);
@@ -1679,6 +1685,7 @@ static void vicodec_buf_request_complete(struct vb2_buffer *vb)
 	struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
 
 	v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl);
+	media_request_manual_complete(vb->req_obj.req);
 }
 
 
@@ -2010,6 +2017,12 @@ static int vicodec_request_validate(struct media_request *req)
 	return vb2_request_validate(req);
 }
 
+static void vicodec_request_queue(struct media_request *req)
+{
+	media_request_mark_manual_completion(req);
+	v4l2_m2m_request_queue(req);
+}
+
 static const struct v4l2_file_operations vicodec_fops = {
 	.owner		= THIS_MODULE,
 	.open		= vicodec_open,
@@ -2030,7 +2043,7 @@ static const struct video_device vicodec_videodev = {
 
 static const struct media_device_ops vicodec_m2m_media_ops = {
 	.req_validate	= vicodec_request_validate,
-	.req_queue	= v4l2_m2m_request_queue,
+	.req_queue	= vicodec_request_queue,
 };
 
 static const struct v4l2_m2m_ops m2m_ops = {

-- 
2.34.1