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Subject[RFC PATCH 9/9] media: vim2m: add request support
Date
Set the necessary ops for supporting requests in vim2m.

Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
---
drivers/media/platform/vim2m.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c
index a32e8a7950eb..ffe94ef9214d 100644
--- a/drivers/media/platform/vim2m.c
+++ b/drivers/media/platform/vim2m.c
@@ -30,6 +30,7 @@
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
#include <media/videobuf2-vmalloc.h>
+#include <media/media-request.h>

MODULE_DESCRIPTION("Virtual device for mem2mem framework testing");
MODULE_AUTHOR("Pawel Osciak, <pawel@osciak.com>");
@@ -142,6 +143,7 @@ struct vim2m_dev {
struct video_device vfd;
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_device mdev;
+ struct media_request_queue *req_queue;
#endif

atomic_t num_inst;
@@ -937,6 +939,11 @@ static int vim2m_open(struct file *file)
goto open_unlock;
}

+#ifdef CONFIG_MEDIA_CONTROLLER
+ v4l2_mem_ctx_request_init(ctx->fh.m2m_ctx, dev->req_queue,
+ &dev->vfd.entity);
+#endif
+
v4l2_fh_add(&ctx->fh);
atomic_inc(&dev->num_inst);

@@ -992,6 +999,12 @@ static const struct v4l2_m2m_ops m2m_ops = {
.job_abort = job_abort,
};

+#ifdef CONFIG_MEDIA_CONTROLLER
+static const struct media_entity_operations vim2m_entity_ops = {
+ .process_request = v4l2_m2m_process_request,
+};
+#endif
+
static int vim2m_probe(struct platform_device *pdev)
{
struct vim2m_dev *dev;
@@ -1006,6 +1019,10 @@ static int vim2m_probe(struct platform_device *pdev)

#ifdef CONFIG_MEDIA_CONTROLLER
dev->mdev.dev = &pdev->dev;
+ dev->req_queue = media_request_queue_generic_alloc(&dev->mdev);
+ if (IS_ERR(dev->req_queue))
+ return PTR_ERR(dev->req_queue);
+ dev->mdev.req_queue = dev->req_queue;
strlcpy(dev->mdev.model, "vim2m", sizeof(dev->mdev.model));
media_device_init(&dev->mdev);
dev->v4l2_dev.mdev = &dev->mdev;
@@ -1023,6 +1040,11 @@ static int vim2m_probe(struct platform_device *pdev)
vfd->lock = &dev->dev_mutex;
vfd->v4l2_dev = &dev->v4l2_dev;

+#ifdef CONFIG_MEDIA_CONTROLLER
+ vfd->entity.ops = &vim2m_entity_ops;
+ vfd->entity.req_ops = &media_entity_request_generic_ops;
+#endif
+
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
--
2.15.1.504.g5279b80103-goog
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