diff options
| author | Bob Liu <lliubbo@gmail.com> | 2011-04-29 12:11:35 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-05-20 17:16:45 +0200 |
| commit | 7296944759c41001122fc95110468a1a572352cd (patch) | |
| tree | 94fe97dd4f5d00d332e77fec0974ebee8e59f377 /drivers/media/video/uvc/uvc_v4l2.c | |
| parent | [media] Revert "V4L/DVB: v4l2-dev: remove get_unmapped_area" (diff) | |
| download | linux-7296944759c41001122fc95110468a1a572352cd.tar.xz linux-7296944759c41001122fc95110468a1a572352cd.zip | |
[media] uvcvideo: Add support for NOMMU arch
Add support to uvc driver for NOMMU arch including add function
uvc_queue_get_unmapped_area() and make some changes in uvc_queue_mmap().
So that uvc camera can be used on nommu arch like blackfin.
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvc_v4l2.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_v4l2.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c index 6e8aad44c4bd..543a80395b7f 100644 --- a/drivers/media/video/uvc/uvc_v4l2.c +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -1114,6 +1114,20 @@ static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait) return uvc_queue_poll(&stream->queue, file, wait); } +#ifndef CONFIG_MMU +static unsigned long uvc_v4l2_get_unmapped_area(struct file *file, + unsigned long addr, unsigned long len, unsigned long pgoff, + unsigned long flags) +{ + struct uvc_fh *handle = file->private_data; + struct uvc_streaming *stream = handle->stream; + + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_get_unmapped_area\n"); + + return uvc_queue_get_unmapped_area(&stream->queue, pgoff); +} +#endif + const struct v4l2_file_operations uvc_fops = { .owner = THIS_MODULE, .open = uvc_v4l2_open, @@ -1122,5 +1136,8 @@ const struct v4l2_file_operations uvc_fops = { .read = uvc_v4l2_read, .mmap = uvc_v4l2_mmap, .poll = uvc_v4l2_poll, +#ifndef CONFIG_MMU + .get_unmapped_area = uvc_v4l2_get_unmapped_area, +#endif }; |