[media] mem2mem_testdev: set timestamp_type and add debug param

While testing v4l2-ctl I noticed that this m2m driver didn't set timestamp_type
and that it spammed the kernel log with debug messages. Set timestamp_type
correctly and add debug module option to enable debug messages.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/media/platform/mem2mem_testdev.c b/drivers/media/platform/mem2mem_testdev.c
index 7487d7208dea..4cc7f65d7d76 100644
--- a/drivers/media/platform/mem2mem_testdev.c
+++ b/drivers/media/platform/mem2mem_testdev.c
@@ -38,6 +38,10 @@ MODULE_AUTHOR("Pawel Osciak, <pawel@osciak.com>");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("0.1.1");
 
+static unsigned debug;
+module_param(debug, uint, 0644);
+MODULE_PARM_DESC(debug, "activates debug info");
+
 #define MIN_W 32
 #define MIN_H 32
 #define MAX_W 640
@@ -67,7 +71,7 @@ MODULE_VERSION("0.1.1");
 #define MEM2MEM_VFLIP   (1 << 1)
 
 #define dprintk(dev, fmt, arg...) \
-        v4l2_dbg(1, 1, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
+        v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
 
 
 static void m2mtest_dev_release(struct device *dev)
@@ -234,6 +238,10 @@ static int device_process(struct m2mtest_ctx *ctx,
         bytes_left = bytesperline - tile_w * MEM2MEM_NUM_TILES;
         w = 0;
 
+        memcpy(&out_vb->v4l2_buf.timestamp,
+                        &in_vb->v4l2_buf.timestamp,
+                        sizeof(struct timeval));
+
         switch (ctx->mode) {
         case MEM2MEM_HFLIP | MEM2MEM_VFLIP:
                 p_out += bytesperline * height - bytes_left;
@@ -844,6 +852,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *ds
         src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
         src_vq->ops = &m2mtest_qops;
         src_vq->mem_ops = &vb2_vmalloc_memops;
+        src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 
         ret = vb2_queue_init(src_vq);
         if (ret)
@@ -855,6 +864,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *ds
         dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
         dst_vq->ops = &m2mtest_qops;
         dst_vq->mem_ops = &vb2_vmalloc_memops;
+        dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
 
         return vb2_queue_init(dst_vq);
 }