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| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-03-24 12:51:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-05-20 11:52:36 -0300 |
| commit | 066f7867207b8e13d2062069e0ba7cb3a5bf04b2 (patch) | |
| tree | 3ba6934e248262d1c2dd2a119869a3fabc68e480 | |
| parent | c68956c14b6accaf6371c8db26deb23fe8e3a3f3 (diff) | |
| download | linux-066f7867207b8e13d2062069e0ba7cb3a5bf04b2.tar.bz2 | |
[media] V4L: sh_mobile_ceu_camera: implement .stop_streaming()
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@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | 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 134e86bf6d97..e6839bb70acc 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -427,6 +427,26 @@ 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, @@ -435,6 +455,7 @@ 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) |