These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / media / usb / usbtv / usbtv-video.c

diff --git a/kernel/drivers/media/usb/usbtv/usbtv-video.c b/kernel/drivers/media/usb/usbtv/usbtv-video.c
index 9d3525f..e645c9d 100644 (file)
--- a/kernel/drivers/media/usb/usbtv/usbtv-video.c
+++ b/kernel/drivers/media/usb/usbtv/usbtv-video.c
@@ -29,7 +29,7 @@
  */
 
 #include <media/v4l2-ioctl.h>
-#include <media/videobuf2-core.h>
+#include <media/videobuf2-v4l2.h>
 
 #include "usbtv.h"
 
@@ -306,7 +306,7 @@ static void usbtv_image_chunk(struct usbtv *usbtv, __be32 *chunk)
 
        /* First available buffer. */
        buf = list_first_entry(&usbtv->bufs, struct usbtv_buf, list);
-       frame = vb2_plane_vaddr(&buf->vb, 0);
+       frame = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 
        /* Copy the chunk data. */
        usbtv_chunk_to_vbuf(frame, &chunk[1], chunk_no, odd);
@@ -314,17 +314,17 @@ static void usbtv_image_chunk(struct usbtv *usbtv, __be32 *chunk)
 
        /* Last chunk in a frame, signalling an end */
        if (odd && chunk_no == usbtv->n_chunks-1) {
-               int size = vb2_plane_size(&buf->vb, 0);
+               int size = vb2_plane_size(&buf->vb.vb2_buf, 0);
                enum vb2_buffer_state state = usbtv->chunks_done ==
                                                usbtv->n_chunks ?
                                                VB2_BUF_STATE_DONE :
                                                VB2_BUF_STATE_ERROR;
 
-               buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
-               buf->vb.v4l2_buf.sequence = usbtv->sequence++;
-               v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
-               vb2_set_plane_payload(&buf->vb, 0, size);
-               vb2_buffer_done(&buf->vb, state);
+               buf->vb.field = V4L2_FIELD_INTERLACED;
+               buf->vb.sequence = usbtv->sequence++;
+               v4l2_get_timestamp(&buf->vb.timestamp);
+               vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
+               vb2_buffer_done(&buf->vb.vb2_buf, state);
                list_del(&buf->list);
        }
 
@@ -422,7 +422,7 @@ static void usbtv_stop(struct usbtv *usbtv)
        while (!list_empty(&usbtv->bufs)) {
                struct usbtv_buf *buf = list_first_entry(&usbtv->bufs,
                                                struct usbtv_buf, list);
-               vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+               vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
                list_del(&buf->list);
        }
        spin_unlock_irqrestore(&usbtv->buflock, flags);
@@ -599,23 +599,28 @@ static struct v4l2_file_operations usbtv_fops = {
 };
 
 static int usbtv_queue_setup(struct vb2_queue *vq,
-       const struct v4l2_format *v4l_fmt, unsigned int *nbuffers,
+       const void *parg, unsigned int *nbuffers,
        unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[])
 {
+       const struct v4l2_format *fmt = parg;
        struct usbtv *usbtv = vb2_get_drv_priv(vq);
+       unsigned size = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32);
 
-       if (*nbuffers < 2)
-               *nbuffers = 2;
+       if (vq->num_buffers + *nbuffers < 2)
+               *nbuffers = 2 - vq->num_buffers;
        *nplanes = 1;
-       sizes[0] = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32);
+       if (fmt && fmt->fmt.pix.sizeimage < size)
+               return -EINVAL;
+       sizes[0] = fmt ? fmt->fmt.pix.sizeimage : size;
 
        return 0;
 }
 
 static void usbtv_buf_queue(struct vb2_buffer *vb)
 {
+       struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
        struct usbtv *usbtv = vb2_get_drv_priv(vb->vb2_queue);
-       struct usbtv_buf *buf = container_of(vb, struct usbtv_buf, vb);
+       struct usbtv_buf *buf = container_of(vbuf, struct usbtv_buf, vb);
        unsigned long flags;
 
        if (usbtv->udev == NULL) {
@@ -635,6 +640,7 @@ static int usbtv_start_streaming(struct vb2_queue *vq, unsigned int count)
        if (usbtv->udev == NULL)
                return -ENODEV;
 
+       usbtv->sequence = 0;
        return usbtv_start(usbtv);
 }