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- /*
- * videobuf2-memops.h - generic memory handling routines for videobuf2
- *
- * Copyright (C) 2010 Samsung Electronics
- *
- * Author: Pawel Osciak <pawel@osciak.com>
- * Marek Szyprowski <m.szyprowski@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation.
- */
- #ifndef _MEDIA_VIDEOBUF2_MEMOPS_H
- #define _MEDIA_VIDEOBUF2_MEMOPS_H
- #include <media/videobuf2-v4l2.h>
- #include <linux/mm.h>
- /**
- * struct vb2_vmarea_handler - common vma refcount tracking handler
- *
- * @refcount: pointer to refcount entry in the buffer
- * @put: callback to function that decreases buffer refcount
- * @arg: argument for @put callback
- */
- struct vb2_vmarea_handler {
- atomic_t *refcount;
- void (*put)(void *arg);
- void *arg;
- };
- extern const struct vm_operations_struct vb2_common_vm_ops;
- struct frame_vector *vb2_create_framevec(unsigned long start,
- unsigned long length,
- bool write);
- void vb2_destroy_framevec(struct frame_vector *vec);
- #endif
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