#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/videodev2.h>
+#include <media/videobuf2-v4l2.h>
#include <media/videobuf2-vmalloc.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
struct buffer {
- struct vb2_buffer vb;
+ struct vb2_v4l2_buffer vb;
struct buffer *next;
};
}
mutex_init(&mutex);
+ spin_lock_init(&blist_lock);
vbops.queue_setup = queue_setup;
vbops.buf_prepare = buf_prepare;
if(!(vdev = video_device_alloc())) {
return -ENOMEM;
}
+ memset(vdev, 0, sizeof *vdev);
vdev->release = video_device_release;
strcpy(vdev->name, KBUILD_MODNAME);
vdev->fops = &fops;
vdev->ioctl_ops = &iops;
vdev->vfl_type = VFL_TYPE_GRABBER;
+ vdev->vfl_dir = VFL_DIR_RX;
vdev->v4l2_dev = &v4l2_dev;
+ vdev->lock = &mutex;
+ vdev->queue = &vbq;
fops.owner = THIS_MODULE;
fops.open = v4l2_fh_open;
iops.vidioc_expbuf = vb2_ioctl_expbuf;
iops.vidioc_streamon = vb2_ioctl_streamon;
iops.vidioc_streamoff = vb2_ioctl_streamoff;
+ iops.vidioc_log_status = v4l2_ctrl_log_status;
+ iops.vidioc_subscribe_event = v4l2_ctrl_subscribe_event;
+ iops.vidioc_unsubscribe_event = v4l2_event_unsubscribe;
if((res = video_register_device(vdev, VFL_TYPE_GRABBER, -1)) != 0) {
printk(KERN_ALERT "vdummy: failed to register video device\n");
static int ioctl_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
{
strcpy(cap->driver, KBUILD_MODNAME);
- strcpy(cap->card, "dummy v4l2 dev");
+ strcpy(cap->card, "Test V4L2 device");
strcpy(cap->bus_info, "nobus");
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
printk(KERN_ALERT "vdummy: buffer too small\n");
return -EINVAL;
}
- vb2_set_plane_payload(vb, 0, frame_size);
return 0;
}
while(buflist) {
struct buffer *buf = buflist;
buflist = buflist->next;
- vb2_buffer_done(&buf->vb, st);
+ vb2_buffer_done(&buf->vb.vb2_buf, st);
}
buflist = buflist_tail = 0;
spin_unlock(&blist_lock);
spin_unlock(&blist_lock);
if(buf) {
- memcpy(vb2_plane_vaddr(&buf->vb, 0), frame, frame_size);
+ memcpy(vb2_plane_vaddr(&buf->vb.vb2_buf, 0), frame, frame_size);
- /*v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
- buf->vb.v4l2_buf.sequence = seqno++;
- buf->vb.v4l2_buf.field = V4L2_FIELD_NONE;*/
- vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
+ buf->vb.vb2_buf.timestamp = ktime_get_ns();
+ buf->vb.sequence = seqno++;
+ buf->vb.field = V4L2_FIELD_NONE;
+ vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+ vb2_set_plane_payload(&buf->vb.vb2_buf, 0, frame_size);
}
return 0;