include/media/videobuf-vmalloc.h

   1 /*
   2  * helper functions for vmalloc capture buffers
   3  *
   4  * The functions expect the hardware being able to scatter gatter
   5  * (i.e. the buffers are not linear in physical memory, but fragmented
   6  * into PAGE_SIZE chunks).  They also assume the driver does not need
   7  * to touch the video data.
   8  *
   9  * (c) 2007 Mauro Carvalho Chehab, <mchehab@infradead.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2
  14  */
  15
  16 #include <media/videobuf-core.h>
  17
  18 /* --------------------------------------------------------------------- */
  19
  20 <<<<<<< HEAD:include/media/videobuf-vmalloc.h
  21 struct videbuf_vmalloc_memory
  22 =======
  23 struct videobuf_vmalloc_memory
  24 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:include/media/videobuf-vmalloc.h
  25 {
  26         u32                 magic;
  27
  28         void                *vmalloc;
  29
  30         /* remap_vmalloc_range seems to need to run after mmap() on some cases */
  31         struct vm_area_struct *vma;
  32 };
  33
  34 void videobuf_queue_vmalloc_init(struct videobuf_queue* q,
  35                          struct videobuf_queue_ops *ops,
  36                          void *dev,
  37                          spinlock_t *irqlock,
  38                          enum v4l2_buf_type type,
  39                          enum v4l2_field field,
  40                          unsigned int msize,
  41                          void *priv);
  42
  43 void *videobuf_to_vmalloc (struct videobuf_buffer *buf);
  44
  45 void videobuf_vmalloc_free (struct videobuf_buffer *buf);