diff options
| author | Frank Schaefer <fschaefer.oss@googlemail.com> | 2014-03-24 16:33:13 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-05-23 13:13:35 -0300 |
| commit | 27a36df63b5befa3b142d4aef54f3a240c8bd977 (patch) | |
| tree | bb56f5388018cab5bc2cc33d6b7a21100043c024 /drivers/media/usb | |
| parent | ef74a0b9ff56caa0e10be620d3b59f2176984430 (diff) | |
| download | linux-27a36df63b5befa3b142d4aef54f3a240c8bd977.tar.gz | |
[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.c | 2 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-video.c | 15 | ||||
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 12 |
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; |