Em Tue, 14 Aug 2018 16:20:29 +0200
Hans Verkuil <hverk...@xs4all.nl> escreveu:
> From: Hans Verkuil <hans.verk...@cisco.com>
>
> Move the __fill_v4l2_buffer() to before the vb2_queue_or_prepare_buf()
> function to prepare for the next two patches.
>
> No other changes.
>
> Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+sams...@kernel.org>
> ---
> .../media/common/videobuf2/videobuf2-v4l2.c | 264 +++++++++---------
> 1 file changed, 132 insertions(+), 132 deletions(-)
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> index 886a2d8d5c6c..408fd7ce9c09 100644
> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> @@ -154,138 +154,6 @@ static void vb2_warn_zero_bytesused(struct vb2_buffer
> *vb)
> pr_warn("use the actual size instead.\n");
> }
>
> -static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct v4l2_buffer
> *b,
> - const char *opname)
> -{
> - if (b->type != q->type) {
> - dprintk(1, "%s: invalid buffer type\n", opname);
> - return -EINVAL;
> - }
> -
> - if (b->index >= q->num_buffers) {
> - dprintk(1, "%s: buffer index out of range\n", opname);
> - return -EINVAL;
> - }
> -
> - if (q->bufs[b->index] == NULL) {
> - /* Should never happen */
> - dprintk(1, "%s: buffer is NULL\n", opname);
> - return -EINVAL;
> - }
> -
> - if (b->memory != q->memory) {
> - dprintk(1, "%s: invalid memory type\n", opname);
> - return -EINVAL;
> - }
> -
> - return __verify_planes_array(q->bufs[b->index], b);
> -}
> -
> -/*
> - * __fill_v4l2_buffer() - fill in a struct v4l2_buffer with information to be
> - * returned to userspace
> - */
> -static void __fill_v4l2_buffer(struct vb2_buffer *vb, void *pb)
> -{
> - struct v4l2_buffer *b = pb;
> - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> - struct vb2_queue *q = vb->vb2_queue;
> - unsigned int plane;
> -
> - /* Copy back data such as timestamp, flags, etc. */
> - b->index = vb->index;
> - b->type = vb->type;
> - b->memory = vb->memory;
> - b->bytesused = 0;
> -
> - b->flags = vbuf->flags;
> - b->field = vbuf->field;
> - b->timestamp = ns_to_timeval(vb->timestamp);
> - b->timecode = vbuf->timecode;
> - b->sequence = vbuf->sequence;
> - b->reserved2 = 0;
> - b->reserved = 0;
> -
> - if (q->is_multiplanar) {
> - /*
> - * Fill in plane-related data if userspace provided an array
> - * for it. The caller has already verified memory and size.
> - */
> - b->length = vb->num_planes;
> - for (plane = 0; plane < vb->num_planes; ++plane) {
> - struct v4l2_plane *pdst = &b->m.planes[plane];
> - struct vb2_plane *psrc = &vb->planes[plane];
> -
> - pdst->bytesused = psrc->bytesused;
> - pdst->length = psrc->length;
> - if (q->memory == VB2_MEMORY_MMAP)
> - pdst->m.mem_offset = psrc->m.offset;
> - else if (q->memory == VB2_MEMORY_USERPTR)
> - pdst->m.userptr = psrc->m.userptr;
> - else if (q->memory == VB2_MEMORY_DMABUF)
> - pdst->m.fd = psrc->m.fd;
> - pdst->data_offset = psrc->data_offset;
> - memset(pdst->reserved, 0, sizeof(pdst->reserved));
> - }
> - } else {
> - /*
> - * We use length and offset in v4l2_planes array even for
> - * single-planar buffers, but userspace does not.
> - */
> - b->length = vb->planes[0].length;
> - b->bytesused = vb->planes[0].bytesused;
> - if (q->memory == VB2_MEMORY_MMAP)
> - b->m.offset = vb->planes[0].m.offset;
> - else if (q->memory == VB2_MEMORY_USERPTR)
> - b->m.userptr = vb->planes[0].m.userptr;
> - else if (q->memory == VB2_MEMORY_DMABUF)
> - b->m.fd = vb->planes[0].m.fd;
> - }
> -
> - /*
> - * Clear any buffer state related flags.
> - */
> - b->flags &= ~V4L2_BUFFER_MASK_FLAGS;
> - b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK;
> - if (!q->copy_timestamp) {
> - /*
> - * For non-COPY timestamps, drop timestamp source bits
> - * and obtain the timestamp source from the queue.
> - */
> - b->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
> - b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
> - }
> -
> - switch (vb->state) {
> - case VB2_BUF_STATE_QUEUED:
> - case VB2_BUF_STATE_ACTIVE:
> - b->flags |= V4L2_BUF_FLAG_QUEUED;
> - break;
> - case VB2_BUF_STATE_ERROR:
> - b->flags |= V4L2_BUF_FLAG_ERROR;
> - /* fall through */
> - case VB2_BUF_STATE_DONE:
> - b->flags |= V4L2_BUF_FLAG_DONE;
> - break;
> - case VB2_BUF_STATE_PREPARED:
> - b->flags |= V4L2_BUF_FLAG_PREPARED;
> - break;
> - case VB2_BUF_STATE_PREPARING:
> - case VB2_BUF_STATE_DEQUEUED:
> - case VB2_BUF_STATE_REQUEUEING:
> - /* nothing */
> - break;
> - }
> -
> - if (vb2_buffer_in_use(q, vb))
> - b->flags |= V4L2_BUF_FLAG_MAPPED;
> -
> - if (!q->is_output &&
> - b->flags & V4L2_BUF_FLAG_DONE &&
> - b->flags & V4L2_BUF_FLAG_LAST)
> - q->last_buffer_dequeued = true;
> -}
> -
> /*
> * __fill_vb2_buffer() - fill a vb2_buffer with information provided in a
> * v4l2_buffer by the userspace. It also verifies that struct
> @@ -441,6 +309,138 @@ static int __fill_vb2_buffer(struct vb2_buffer *vb,
> return 0;
> }
>
> +static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct v4l2_buffer
> *b,
> + const char *opname)
> +{
> + if (b->type != q->type) {
> + dprintk(1, "%s: invalid buffer type\n", opname);
> + return -EINVAL;
> + }
> +
> + if (b->index >= q->num_buffers) {
> + dprintk(1, "%s: buffer index out of range\n", opname);
> + return -EINVAL;
> + }
> +
> + if (q->bufs[b->index] == NULL) {
> + /* Should never happen */
> + dprintk(1, "%s: buffer is NULL\n", opname);
> + return -EINVAL;
> + }
> +
> + if (b->memory != q->memory) {
> + dprintk(1, "%s: invalid memory type\n", opname);
> + return -EINVAL;
> + }
> +
> + return __verify_planes_array(q->bufs[b->index], b);
> +}
> +
> +/*
> + * __fill_v4l2_buffer() - fill in a struct v4l2_buffer with information to be
> + * returned to userspace
> + */
> +static void __fill_v4l2_buffer(struct vb2_buffer *vb, void *pb)
> +{
> + struct v4l2_buffer *b = pb;
> + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> + struct vb2_queue *q = vb->vb2_queue;
> + unsigned int plane;
> +
> + /* Copy back data such as timestamp, flags, etc. */
> + b->index = vb->index;
> + b->type = vb->type;
> + b->memory = vb->memory;
> + b->bytesused = 0;
> +
> + b->flags = vbuf->flags;
> + b->field = vbuf->field;
> + b->timestamp = ns_to_timeval(vb->timestamp);
> + b->timecode = vbuf->timecode;
> + b->sequence = vbuf->sequence;
> + b->reserved2 = 0;
> + b->reserved = 0;
> +
> + if (q->is_multiplanar) {
> + /*
> + * Fill in plane-related data if userspace provided an array
> + * for it. The caller has already verified memory and size.
> + */
> + b->length = vb->num_planes;
> + for (plane = 0; plane < vb->num_planes; ++plane) {
> + struct v4l2_plane *pdst = &b->m.planes[plane];
> + struct vb2_plane *psrc = &vb->planes[plane];
> +
> + pdst->bytesused = psrc->bytesused;
> + pdst->length = psrc->length;
> + if (q->memory == VB2_MEMORY_MMAP)
> + pdst->m.mem_offset = psrc->m.offset;
> + else if (q->memory == VB2_MEMORY_USERPTR)
> + pdst->m.userptr = psrc->m.userptr;
> + else if (q->memory == VB2_MEMORY_DMABUF)
> + pdst->m.fd = psrc->m.fd;
> + pdst->data_offset = psrc->data_offset;
> + memset(pdst->reserved, 0, sizeof(pdst->reserved));
> + }
> + } else {
> + /*
> + * We use length and offset in v4l2_planes array even for
> + * single-planar buffers, but userspace does not.
> + */
> + b->length = vb->planes[0].length;
> + b->bytesused = vb->planes[0].bytesused;
> + if (q->memory == VB2_MEMORY_MMAP)
> + b->m.offset = vb->planes[0].m.offset;
> + else if (q->memory == VB2_MEMORY_USERPTR)
> + b->m.userptr = vb->planes[0].m.userptr;
> + else if (q->memory == VB2_MEMORY_DMABUF)
> + b->m.fd = vb->planes[0].m.fd;
> + }
> +
> + /*
> + * Clear any buffer state related flags.
> + */
> + b->flags &= ~V4L2_BUFFER_MASK_FLAGS;
> + b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK;
> + if (!q->copy_timestamp) {
> + /*
> + * For non-COPY timestamps, drop timestamp source bits
> + * and obtain the timestamp source from the queue.
> + */
> + b->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
> + b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
> + }
> +
> + switch (vb->state) {
> + case VB2_BUF_STATE_QUEUED:
> + case VB2_BUF_STATE_ACTIVE:
> + b->flags |= V4L2_BUF_FLAG_QUEUED;
> + break;
> + case VB2_BUF_STATE_ERROR:
> + b->flags |= V4L2_BUF_FLAG_ERROR;
> + /* fall through */
> + case VB2_BUF_STATE_DONE:
> + b->flags |= V4L2_BUF_FLAG_DONE;
> + break;
> + case VB2_BUF_STATE_PREPARED:
> + b->flags |= V4L2_BUF_FLAG_PREPARED;
> + break;
> + case VB2_BUF_STATE_PREPARING:
> + case VB2_BUF_STATE_DEQUEUED:
> + case VB2_BUF_STATE_REQUEUEING:
> + /* nothing */
> + break;
> + }
> +
> + if (vb2_buffer_in_use(q, vb))
> + b->flags |= V4L2_BUF_FLAG_MAPPED;
> +
> + if (!q->is_output &&
> + b->flags & V4L2_BUF_FLAG_DONE &&
> + b->flags & V4L2_BUF_FLAG_LAST)
> + q->last_buffer_dequeued = true;
> +}
> +
> static const struct vb2_buf_ops v4l2_buf_ops = {
> .verify_planes_array = __verify_planes_array_core,
> .fill_user_buffer = __fill_v4l2_buffer,
Thanks,
Mauro
