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authorFrank Schaefer <fschaefer.oss@googlemail.com>2014-03-24 16:33:13 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-05-23 13:13:35 -0300
commit27a36df63b5befa3b142d4aef54f3a240c8bd977 (patch)
treebb56f5388018cab5bc2cc33d6b7a21100043c024 /drivers/media/usb
parentef74a0b9ff56caa0e10be620d3b59f2176984430 (diff)
[media] em28xx: move videobuf2 related data from struct em28xx to struct v4l2
The video and VBI-specific VB2 queue and mutexes are used only by the v4l2 sub-driver. Move them to the V4L2 struct, preventing wasting memory if this sub-driver is not used. Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb')
-rw-r--r--drivers/media/usb/em28xx/em28xx-cards.c2
-rw-r--r--drivers/media/usb/em28xx/em28xx-video.c15
-rw-r--r--drivers/media/usb/em28xx/em28xx.h12
3 files changed, 15 insertions, 14 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 406fa3407728..7e402f46ea13 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -3016,8 +3016,6 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
const char *chip_name = default_chip_name;
dev->udev = udev;
- mutex_init(&dev->vb_queue_lock);
- mutex_init(&dev->vb_vbi_queue_lock);
mutex_init(&dev->ctrl_urb_lock);
spin_lock_init(&dev->slock);
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 0e8f73dfe323..1e2ea6032f5f 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -1045,9 +1045,10 @@ static int em28xx_vb2_setup(struct em28xx *dev)
{
int rc;
struct vb2_queue *q;
+ struct em28xx_v4l2 *v4l2 = dev->v4l2;
/* Setup Videobuf2 for Video capture */
- q = &dev->vb_vidq;
+ q = &v4l2->vb_vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
@@ -1061,7 +1062,7 @@ static int em28xx_vb2_setup(struct em28xx *dev)
return rc;
/* Setup Videobuf2 for VBI capture */
- q = &dev->vb_vbiq;
+ q = &v4l2->vb_vbiq;
q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
@@ -2479,8 +2480,10 @@ static int em28xx_v4l2_init(struct em28xx *dev)
ret = -ENODEV;
goto unregister_dev;
}
- v4l2->vdev->queue = &dev->vb_vidq;
- v4l2->vdev->queue->lock = &dev->vb_queue_lock;
+ mutex_init(&v4l2->vb_queue_lock);
+ mutex_init(&v4l2->vb_vbi_queue_lock);
+ v4l2->vdev->queue = &v4l2->vb_vidq;
+ v4l2->vdev->queue->lock = &v4l2->vb_queue_lock;
/* disable inapplicable ioctls */
if (dev->board.is_webcam) {
@@ -2515,8 +2518,8 @@ static int em28xx_v4l2_init(struct em28xx *dev)
v4l2->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
"vbi");
- v4l2->vbi_dev->queue = &dev->vb_vbiq;
- v4l2->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
+ v4l2->vbi_dev->queue = &v4l2->vb_vbiq;
+ v4l2->vbi_dev->queue->lock = &v4l2->vb_vbi_queue_lock;
/* disable inapplicable ioctls */
v4l2_disable_ioctl(v4l2->vdev, VIDIOC_S_PARM);
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
index fc3f8b8e70bf..71d88570395a 100644
--- a/drivers/media/usb/em28xx/em28xx.h
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -509,6 +509,12 @@ struct em28xx_v4l2 {
struct video_device *vdev;
struct video_device *vbi_dev;
struct video_device *radio_dev;
+
+ /* Videobuf2 */
+ struct vb2_queue vb_vidq;
+ struct vb2_queue vb_vbiq;
+ struct mutex vb_queue_lock;
+ struct mutex vb_vbi_queue_lock;
};
struct em28xx_audio {
@@ -650,12 +656,6 @@ struct em28xx {
struct mutex lock;
struct mutex ctrl_urb_lock; /* protects urb_buf */
- /* Videobuf2 */
- struct vb2_queue vb_vidq;
- struct vb2_queue vb_vbiq;
- struct mutex vb_queue_lock;
- struct mutex vb_vbi_queue_lock;
-
/* resources in use */
unsigned int resources;