The .stop_streaming() videobuf2 operation has to be implemented to
guarantee, that video buffers are not written to after a STREAMOFF.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
---
for 2.6.40
drivers/media/video/sh_mobile_ceu_camera.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 61f3701..0a75a4c 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -429,6 +429,26 @@ static int sh_mobile_ceu_videobuf_init(struct vb2_buffer *vb)
return 0;
}
+static int sh_mobile_ceu_stop_streaming(struct vb2_queue *q)
+{
+ struct soc_camera_device *icd = container_of(q, struct soc_camera_device, vb2_vidq);
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct sh_mobile_ceu_dev *pcdev = ici->priv;
+ struct list_head *buf_head, *tmp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pcdev->lock, flags);
+
+ pcdev->active = NULL;
+
+ list_for_each_safe(buf_head, tmp, &pcdev->capture)
+ list_del_init(buf_head);
+
+ spin_unlock_irqrestore(&pcdev->lock, flags);
+
+ return sh_mobile_ceu_soft_reset(pcdev);
+}
+
static struct vb2_ops sh_mobile_ceu_videobuf_ops = {
.queue_setup = sh_mobile_ceu_videobuf_setup,
.buf_prepare = sh_mobile_ceu_videobuf_prepare,
@@ -437,6 +457,7 @@ static struct vb2_ops sh_mobile_ceu_videobuf_ops = {
.buf_init = sh_mobile_ceu_videobuf_init,
.wait_prepare = soc_camera_unlock,
.wait_finish = soc_camera_lock,
+ .stop_streaming = sh_mobile_ceu_stop_streaming,
};
static irqreturn_t sh_mobile_ceu_irq(int irq, void *data)
--
1.7.2.5
--
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